Revert "[ubicom32] remove kernel patch for now since it is incomplete and has some licensing issues" (r17404) There are no licensing issues with this patch

SVN-Revision: 17416

2 files changed, 48923 insertions, 2 deletions

diff --git a/target/linux/ubicom32/Makefile b/target/linux/ubicom32/Makefile
index 2901e28412..fb181d6a76 100644
--- a/target/linux/ubicom32/Makefile
+++ b/target/linux/ubicom32/Makefile
@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2006-2009 OpenWrt.org
+# Copyright (C) 2006-2008 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -13,7 +13,6 @@ ARCH:=ubicom32
 BOARD:=ubicom32
 BOARDNAME:=Ubicom IPxx
 FEATURES:=nommu ramdisk
-CFLAGS:=-Os -pipe -march=ubicom32v4 -funit-at-a-time
 
 LINUX_VERSION:=2.6.28.10
 
diff --git a/target/linux/ubicom32/patches-2.6.28/100-ubicom32_support.patch b/target/linux/ubicom32/patches-2.6.28/100-ubicom32_support.patch
new file mode 100644
index 0000000000..4ec511fa6e
--- /dev/null
+++ b/target/linux/ubicom32/patches-2.6.28/100-ubicom32_support.patch
@@ -0,0 +1,48922 @@
+--- /dev/null
++++ b/arch/ubicom32/crypto/aes_ubicom32.c
+@@ -0,0 +1,458 @@
++/*
++ * arch/ubicom32/crypto/aes_ubicom32.c
++ *   Ubicom32 implementation of the AES Cipher Algorithm.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <crypto/aes.h>
++#include <crypto/algapi.h>
++#include <linux/err.h>
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/spinlock.h>
++#include "crypto_ubicom32.h"
++#include <asm/linkage.h>
++
++struct ubicom32_aes_ctx {
++	u8 key[AES_MAX_KEY_SIZE];
++	u32 ctrl;
++	int key_len;
++};
++
++static inline void aes_hw_set_key(const u8 *key, u8 key_len)
++{
++	/*
++	 * switch case has more overhead than 4 move.4 instructions, so just copy 256 bits
++	 */
++	SEC_SET_KEY_256(key);
++}
++
++static inline void aes_hw_set_iv(const u8 *iv)
++{
++	SEC_SET_IV_4W(iv);
++}
++
++static inline void aes_hw_cipher(u8 *out, const u8 *in)
++{
++	SEC_SET_INPUT_4W(in);
++
++	asm volatile (                                                
++	"	; start AES by writing 0x40(SECURITY_BASE)	\n\t" 
++	"	move.4 0x40(%0), #0x01				\n\t" 
++	"	pipe_flush 0                                    \n\t" 
++	"							\n\t" 
++	"	; wait for the module to calculate the output	\n\t" 
++	"	btst 0x04(%0), #0				\n\t" 
++	"	jmpne.f .-4					\n\t" 
++		:                                                             
++		: "a" (SEC_BASE)				                      
++		: "cc"
++	);
++	
++	SEC_GET_OUTPUT_4W(out);
++}
++
++static int __ocm_text aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
++		       unsigned int key_len)
++{
++	struct ubicom32_aes_ctx *uctx = crypto_tfm_ctx(tfm);
++
++	uctx->key_len = key_len;
++	memcpy(uctx->key, in_key, key_len);
++
++	/*
++  	 * leave out HASH_ALG (none = 0), CBC (no = 0), DIR (unknown) yet
++  	 */
++	switch (uctx->key_len) {
++	case 16:
++		uctx->ctrl = SEC_KEY_128_BITS | SEC_ALG_AES;
++		break;
++	case 24:
++		uctx->ctrl = SEC_KEY_192_BITS | SEC_ALG_AES;
++		break;
++	case 32:
++		uctx->ctrl = SEC_KEY_256_BITS | SEC_ALG_AES;
++		break;
++	}
++
++	return 0;
++}
++
++static inline void aes_cipher(struct crypto_tfm *tfm, u8 *out, const u8 *in, u32 extra_flags)
++{
++	const struct ubicom32_aes_ctx *uctx = crypto_tfm_ctx(tfm);
++
++	hw_crypto_lock();
++	hw_crypto_check();
++	hw_crypto_set_ctrl(uctx->ctrl | extra_flags);
++
++	aes_hw_set_key(uctx->key, uctx->key_len);
++	aes_hw_cipher(out, in);
++
++	hw_crypto_unlock();	
++}
++
++static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
++{
++	aes_cipher(tfm, out, in, SEC_DIR_ENCRYPT);
++}
++
++static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
++{
++	aes_cipher(tfm, out, in, SEC_DIR_DECRYPT);
++}
++
++static struct crypto_alg aes_alg = {
++	.cra_name		=	"aes",
++	.cra_driver_name	=	"aes-ubicom32",
++	.cra_priority		=	CRYPTO_UBICOM32_PRIORITY,
++	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER, 
++	.cra_blocksize		=	AES_BLOCK_SIZE,
++	.cra_ctxsize		=	sizeof(struct ubicom32_aes_ctx),
++	.cra_alignmask		=	CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_module		=	THIS_MODULE,
++	.cra_list		=	LIST_HEAD_INIT(aes_alg.cra_list),
++	.cra_u			=	{
++		.cipher = {
++			.cia_min_keysize	=	AES_MIN_KEY_SIZE,
++			.cia_max_keysize	=	AES_MAX_KEY_SIZE,
++			.cia_setkey		=	aes_set_key,
++			.cia_encrypt		=	aes_encrypt,
++			.cia_decrypt		=	aes_decrypt,
++		}
++	}
++};
++
++static void __ocm_text ecb_aes_crypt_loop(u8 *out, u8 *in, unsigned int n)
++{
++	while (likely(n)) {
++		aes_hw_cipher(out, in);
++		out += AES_BLOCK_SIZE;
++		in += AES_BLOCK_SIZE;
++		n -= AES_BLOCK_SIZE;
++	}
++}
++
++static int __ocm_text ecb_aes_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, 
++			 struct scatterlist *src, unsigned int nbytes, u32 extra_flags)
++{
++	const struct ubicom32_aes_ctx *uctx = crypto_blkcipher_ctx(desc->tfm);
++	int ret;
++	
++	struct blkcipher_walk walk;
++	blkcipher_walk_init(&walk, dst, src, nbytes);
++	ret = blkcipher_walk_virt(desc, &walk);
++        if (ret) {
++                return ret;
++        }
++
++	hw_crypto_lock();
++	hw_crypto_check();
++
++        hw_crypto_set_ctrl(uctx->ctrl | extra_flags);
++        aes_hw_set_key(uctx->key, uctx->key_len);
++	
++	while (likely((nbytes = walk.nbytes))) {
++		/* only use complete blocks */
++		unsigned int n = nbytes & ~(AES_BLOCK_SIZE - 1);
++		u8 *out = walk.dst.virt.addr;
++		u8 *in = walk.src.virt.addr;
++
++		/* finish n/16 blocks */
++		ecb_aes_crypt_loop(out, in, n);
++		
++		nbytes &= AES_BLOCK_SIZE - 1;
++		ret = blkcipher_walk_done(desc, &walk, nbytes);
++	}
++
++	hw_crypto_unlock();
++	return ret;
++}
++
++static int ecb_aes_encrypt(struct blkcipher_desc *desc,
++			   struct scatterlist *dst, struct scatterlist *src,
++			   unsigned int nbytes)
++{
++	return ecb_aes_crypt(desc, dst, src, nbytes, SEC_DIR_ENCRYPT);
++}
++
++static int ecb_aes_decrypt(struct blkcipher_desc *desc,
++			   struct scatterlist *dst, struct scatterlist *src,
++			   unsigned int nbytes)
++{
++	return ecb_aes_crypt(desc, dst, src, nbytes, SEC_DIR_DECRYPT);
++}
++
++static struct crypto_alg ecb_aes_alg = {
++	.cra_name		=	"ecb(aes)",
++	.cra_driver_name	=	"ecb-aes-ubicom32",
++	.cra_priority		=	CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER, 
++	.cra_blocksize		=	AES_BLOCK_SIZE,
++	.cra_ctxsize		=	sizeof(struct ubicom32_aes_ctx),
++	.cra_alignmask          =       CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_type		=	&crypto_blkcipher_type,
++	.cra_module		=	THIS_MODULE,
++	.cra_list		=	LIST_HEAD_INIT(ecb_aes_alg.cra_list),
++	.cra_u			=	{
++		.blkcipher = {
++			.min_keysize		=	AES_MIN_KEY_SIZE,
++			.max_keysize		=	AES_MAX_KEY_SIZE,
++			.setkey			=	aes_set_key,
++			.encrypt		=	ecb_aes_encrypt,
++			.decrypt		=	ecb_aes_decrypt,
++		}
++	}
++};
++
++#if CRYPTO_UBICOM32_LOOP_ASM 
++void __ocm_text cbc_aes_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++	asm volatile (
++	"; set init. iv 4w			\n\t"
++	"	move.4 0x50(%0), 0x0(%3)	\n\t"
++	"	move.4 0x54(%0), 0x4(%3)	\n\t"
++	"	move.4 0x58(%0), 0x8(%3)	\n\t"
++	"	move.4 0x5c(%0), 0xc(%3)	\n\t"
++	"					\n\t"
++	"; we know n > 0, so we can always	\n\t"
++	"; load the first block			\n\t"
++	"; set input 4w				\n\t"
++	"	move.4 0x30(%0), 0x0(%2)	\n\t"
++	"	move.4 0x34(%0), 0x4(%2)	\n\t"
++	"	move.4 0x38(%0), 0x8(%2)	\n\t"
++	"	move.4 0x3c(%0), 0xc(%2)	\n\t"
++	"					\n\t"
++	"; kickoff hw				\n\t"
++	"	move.4 0x40(%0), %2		\n\t"
++	"					\n\t"
++	"; update n & flush			\n\t"
++	"	add.4 %4, #-16, %4		\n\t"
++	"	pipe_flush 0			\n\t"
++	"					\n\t"
++	"; while (n):  work on 2nd block	\n\t"
++	" 1:	lsl.4 d15, %4, #0x0		\n\t"
++	"	jmpeq.f 5f			\n\t"
++	"					\n\t"
++	"; set input 4w	(2nd)			\n\t"
++	"	move.4 0x30(%0), 0x10(%2)	\n\t"
++	"	move.4 0x34(%0), 0x14(%2)	\n\t"
++	"	move.4 0x38(%0), 0x18(%2)	\n\t"
++	"	move.4 0x3c(%0), 0x1c(%2)	\n\t"
++	"					\n\t"
++	"; update n/in asap while waiting	\n\t"
++	"	add.4 %4, #-16, %4		\n\t"
++	"	move.4 d15, 16(%2)++		\n\t"
++	"					\n\t"
++	"; wait for the previous output		\n\t"
++	"	btst 0x04(%0), #0		\n\t"
++	"	jmpne.f -4			\n\t"
++	"					\n\t"
++	"; read previous output			\n\t"
++	"	move.4 0x0(%1), 0x50(%0)	\n\t"
++	"	move.4 0x4(%1), 0x54(%0)	\n\t"
++	"	move.4 0x8(%1), 0x58(%0)	\n\t"
++	"	move.4 0xc(%1), 0x5c(%0)	\n\t"
++	"					\n\t"
++	"; kick off hw for 2nd input		\n\t"
++	"	move.4 0x40(%0), %2		\n\t"
++	"					\n\t"
++	"; update out asap			\n\t"
++	"	move.4 d15, 16(%1)++		\n\t"
++	"					\n\t"
++	"; go back to loop			\n\t"
++	"	jmpt 1b				\n\t"
++	"					\n\t"
++	"; wait for last output			\n\t" 
++	" 5:	btst 0x04(%0), #0               \n\t"
++        "       jmpne.f -4                      \n\t"
++        "                                       \n\t"
++	"; read last output			\n\t"
++	"	move.4 0x0(%1), 0x50(%0)	\n\t"
++	"	move.4 0x4(%1), 0x54(%0)	\n\t"
++	"	move.4 0x8(%1), 0x58(%0)	\n\t"
++	"	move.4 0xc(%1), 0x5c(%0)	\n\t"
++        "                                       \n\t"
++	"; copy out iv				\n\t"
++	"	move.4 0x0(%3), 0x50(%0)	\n\t"
++	"	move.4 0x4(%3), 0x54(%0)	\n\t"
++	"	move.4 0x8(%3), 0x58(%0)	\n\t"
++	"	move.4 0xc(%3), 0x5c(%0)	\n\t"
++        "                                       \n\t"
++		:
++		: "a" (SEC_BASE), "a" (out), "a" (in), "a" (iv), "d" (n)
++		: "d15", "cc"
++	);
++}
++
++#else
++
++static void __ocm_text cbc_aes_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++	aes_hw_set_iv(iv);
++	while (likely(n)) {
++		aes_hw_cipher(out, in);
++		out += AES_BLOCK_SIZE;
++		in += AES_BLOCK_SIZE;
++		n -= AES_BLOCK_SIZE;	
++	}
++	SEC_COPY_4W(iv, out - AES_BLOCK_SIZE);
++}
++
++#endif
++
++static void __ocm_text cbc_aes_decrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++        while (likely(n)) {
++                aes_hw_set_iv(iv);
++		SEC_COPY_4W(iv, in);
++                aes_hw_cipher(out, in);
++                out += AES_BLOCK_SIZE;
++                in += AES_BLOCK_SIZE;
++                n -= AES_BLOCK_SIZE;
++        }
++}
++
++static int __ocm_text cbc_aes_crypt(struct blkcipher_desc *desc, 
++                           struct scatterlist *dst, struct scatterlist *src,
++                           unsigned int nbytes, u32 extra_flags)
++{
++	struct ubicom32_aes_ctx *uctx = crypto_blkcipher_ctx(desc->tfm);
++	int ret;
++
++        struct blkcipher_walk walk;
++        blkcipher_walk_init(&walk, dst, src, nbytes);
++	ret = blkcipher_walk_virt(desc, &walk);
++	if (unlikely(ret)) {
++		return ret;
++	}
++	
++        hw_crypto_lock();
++	hw_crypto_check();
++
++        hw_crypto_set_ctrl(uctx->ctrl | extra_flags);
++        aes_hw_set_key(uctx->key, uctx->key_len);
++
++	while (likely((nbytes = walk.nbytes))) {
++                /* only use complete blocks */
++                unsigned int n = nbytes & ~(AES_BLOCK_SIZE - 1);
++		if (likely(n)) {
++	                u8 *out = walk.dst.virt.addr;
++        	        u8 *in = walk.src.virt.addr;
++
++			if (extra_flags & SEC_DIR_ENCRYPT) {
++				cbc_aes_encrypt_loop(out, in, walk.iv, n);
++			} else {
++				cbc_aes_decrypt_loop(out, in, walk.iv, n);
++			}
++		}
++
++		nbytes &= AES_BLOCK_SIZE - 1;
++                ret = blkcipher_walk_done(desc, &walk, nbytes);
++	}
++	hw_crypto_unlock();
++
++	return ret;
++}
++
++static int __ocm_text cbc_aes_encrypt(struct blkcipher_desc *desc,
++			   struct scatterlist *dst, struct scatterlist *src,
++			   unsigned int nbytes)
++{
++	return cbc_aes_crypt(desc, dst, src, nbytes, SEC_DIR_ENCRYPT | SEC_CBC_SET);
++}
++
++static int __ocm_text cbc_aes_decrypt(struct blkcipher_desc *desc,
++			   struct scatterlist *dst, struct scatterlist *src,
++			   unsigned int nbytes)
++{
++	return cbc_aes_crypt(desc, dst, src, nbytes, SEC_DIR_DECRYPT | SEC_CBC_SET);
++}
++
++static struct crypto_alg cbc_aes_alg = {
++	.cra_name		=	"cbc(aes)",
++	.cra_driver_name	=	"cbc-aes-ubicom32",
++	.cra_priority		=	CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER, 
++	.cra_blocksize		=	AES_BLOCK_SIZE,
++	.cra_ctxsize		=	sizeof(struct ubicom32_aes_ctx),
++	.cra_alignmask          =       CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_type		=	&crypto_blkcipher_type,
++	.cra_module		=	THIS_MODULE,
++	.cra_list		=	LIST_HEAD_INIT(cbc_aes_alg.cra_list),
++	.cra_u			=	{
++		.blkcipher = {
++			.min_keysize		=	AES_MIN_KEY_SIZE,
++			.max_keysize		=	AES_MAX_KEY_SIZE,
++			.ivsize			=	AES_BLOCK_SIZE,
++			.setkey			=	aes_set_key,
++			.encrypt		=	cbc_aes_encrypt,
++			.decrypt		=	cbc_aes_decrypt,
++		}
++	}
++};
++
++static int __init aes_init(void)
++{
++	int ret;
++
++	hw_crypto_init();
++
++	ret = crypto_register_alg(&aes_alg);
++	if (ret)
++		goto aes_err;
++
++	ret = crypto_register_alg(&ecb_aes_alg);
++	if (ret)
++		goto ecb_aes_err;
++
++	ret = crypto_register_alg(&cbc_aes_alg);
++	if (ret)
++		goto cbc_aes_err;
++
++out:
++	return ret;
++
++cbc_aes_err:
++	crypto_unregister_alg(&ecb_aes_alg);
++ecb_aes_err:
++	crypto_unregister_alg(&aes_alg);
++aes_err:
++	goto out;
++}
++
++static void __exit aes_fini(void)
++{
++	crypto_unregister_alg(&cbc_aes_alg);
++	crypto_unregister_alg(&ecb_aes_alg);
++	crypto_unregister_alg(&aes_alg);
++}
++
++module_init(aes_init);
++module_exit(aes_fini);
++
++MODULE_ALIAS("aes");
++
++MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/arch/ubicom32/crypto/crypto_des.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/crypto/crypto_des.h
++ *   Function for checking keys for the DES and Triple DES Encryption
++ *   algorithms.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef __CRYPTO_DES_H__
++#define __CRYPTO_DES_H__
++
++extern int crypto_des_check_key(const u8*, unsigned int, u32*);
++
++#endif /* __CRYPTO_DES_H__ */
+--- /dev/null
++++ b/arch/ubicom32/crypto/crypto_ubicom32.c
+@@ -0,0 +1,50 @@
++/*
++ * arch/ubicom32/crypto/crypto_ubicom32.c
++ *   Generic code to support ubicom32 hardware crypto accelerator
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include "crypto_ubicom32.h"
++
++spinlock_t crypto_ubicom32_lock;
++bool crypto_ubicom32_inited = false;
++volatile bool crypto_ubicom32_on = false;
++volatile unsigned long crypto_ubicom32_last_use;
++
++struct timer_list crypto_ubicom32_ps_timer;
++void crypto_ubicom32_ps_check(unsigned long data)
++{
++	unsigned long idle_time = msecs_to_jiffies(HW_CRYPTO_PS_MAX_IDLE_MS);
++
++	BUG_ON(!crypto_ubicom32_on);
++
++	if (((jiffies - crypto_ubicom32_last_use) > idle_time) && spin_trylock_bh(&crypto_ubicom32_lock)) {
++                hw_crypto_turn_off();
++                spin_unlock_bh(&crypto_ubicom32_lock);
++		return;
++	}
++
++	/* keep monitoring */
++	hw_crypto_ps_start();
++}
+--- /dev/null
++++ b/arch/ubicom32/crypto/crypto_ubicom32.h
+@@ -0,0 +1,346 @@
++/*
++ * arch/ubicom32/crypto/crypto_ubicom32.h
++ *   Support for Ubicom32 cryptographic instructions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _CRYPTO_ARCH_UBICOM32_CRYPT_H
++#define _CRYPTO_ARCH_UBICOM32_CRYPT_H
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/jiffies.h>
++#include <linux/timer.h>
++#include <linux/spinlock.h>
++#include <asm/errno.h>
++#include <asm/io.h>
++#include <asm/ip5000.h>
++
++#define CRYPTO_UBICOM32_LOOP_ASM 1
++#define CRYPTO_UBICOM32_ALIGNMENT 4
++#define SEC_ALIGNED(p) (((u32)p & 3) == 0)
++
++#define SEC_BASE		SECURITY_BASE
++#define SEC_KEY_OFFSET		SECURITY_KEY_VALUE(0)
++#define SEC_INPUT_OFFSET	SECURITY_KEY_IN(0)
++#define SEC_OUTPUT_OFFSET	SECURITY_KEY_OUT(0)
++#define SEC_HASH_OFFSET		SECURITY_KEY_HASH(0)
++
++#define SEC_KEY_128_BITS	SECURITY_CTRL_KEY_SIZE(0)
++#define SEC_KEY_192_BITS	SECURITY_CTRL_KEY_SIZE(1)
++#define SEC_KEY_256_BITS	SECURITY_CTRL_KEY_SIZE(2)
++
++#define SEC_HASH_NONE		SECURITY_CTRL_HASH_ALG_NONE
++#define SEC_HASH_MD5		SECURITY_CTRL_HASH_ALG_MD5
++#define SEC_HASH_SHA1		SECURITY_CTRL_HASH_ALG_SHA1
++
++#define SEC_CBC_SET		SECURITY_CTRL_CBC
++#define SEC_CBC_NONE		0
++
++#define SEC_ALG_AES		SECURITY_CTRL_CIPHER_ALG_AES
++#define SEC_ALG_NONE		SECURITY_CTRL_CIPHER_ALG_NONE
++#define SEC_ALG_DES		SECURITY_CTRL_CIPHER_ALG_DES
++#define SEC_ALG_3DES		SECURITY_CTRL_CIPHER_ALG_3DES
++
++#define SEC_DIR_ENCRYPT		SECURITY_CTRL_ENCIPHER
++#define SEC_DIR_DECRYPT		0
++
++#define CRYPTO_UBICOM32_PRIORITY 300
++#define CRYPTO_UBICOM32_COMPOSITE_PRIORITY 400
++
++#define HW_CRYPTO_PS_MAX_IDLE_MS 100    /* idle time (ms) before shuting down sm */
++
++extern spinlock_t crypto_ubicom32_lock;
++extern bool crypto_ubicom32_inited;
++extern volatile bool crypto_ubicom32_on;
++extern volatile unsigned long crypto_ubicom32_last_use;
++extern struct timer_list crypto_ubicom32_ps_timer;
++extern void crypto_ubicom32_ps_check(unsigned long data);
++
++#define SEC_COPY_2W(t, s)				\
++	asm volatile (					\
++	"	move.4 0(%0), 0(%1)		\n\t"	\
++	"	move.4 4(%0), 4(%1)		\n\t"	\
++							\
++		:					\
++		: "a" (t), "a" (s)			\
++	)
++
++#define SEC_COPY_4W(t, s)				\
++	asm volatile (					\
++	"	move.4 0(%0), 0(%1)		\n\t"	\
++	"	move.4 4(%0), 4(%1)		\n\t"	\
++	"	move.4 8(%0), 8(%1)		\n\t"	\
++	"	move.4 12(%0), 12(%1)		\n\t"	\
++		:					\
++		: "a" (t), "a" (s)			\
++	)
++
++#define SEC_COPY_5W(t, s)				\
++	asm volatile (					\
++	"	move.4 0(%0), 0(%1)		\n\t"	\
++	"	move.4 4(%0), 4(%1)		\n\t"	\
++	"	move.4 8(%0), 8(%1)		\n\t"	\
++	"	move.4 12(%0), 12(%1)		\n\t"	\
++	"	move.4 16(%0), 16(%1)		\n\t"	\
++		:					\
++		: "a" (t), "a" (s)			\
++	)
++
++#define SEC_SET_KEY_2W(x)				\
++	asm volatile (					\
++	"	; write key to Security Keyblock \n\t"	\
++	"	move.4 0x10(%0), 0(%1)		\n\t"	\
++	"	move.4 0x14(%0), 4(%1)		\n\t"	\
++		:					\
++		: "a" (SECURITY_BASE), "a" (x)		\
++	)
++
++#define SEC_SET_KEY_4W(x) \
++	asm volatile ( \
++	"	; write key to Security Keyblock \n\t"	\
++	"	move.4 0x10(%0), 0(%1)		\n\t"	\
++	"	move.4 0x14(%0), 4(%1)		\n\t"	\
++	"	move.4 0x18(%0), 8(%1)		\n\t"	\
++	"	move.4 0x1c(%0), 12(%1)		\n\t"	\
++		:					\
++		: "a"(SECURITY_BASE), "a"(x)		\
++	)
++
++#define SEC_SET_KEY_6W(x)				\
++	asm volatile (					\
++	"	; write key to Security Keyblock \n\t"	\
++	"	move.4 0x10(%0), 0(%1)		\n\t"	\
++	"	move.4 0x14(%0), 4(%1)		\n\t"	\
++	"	move.4 0x18(%0), 8(%1)		\n\t"	\
++	"	move.4 0x1c(%0), 12(%1)		\n\t"	\
++	"	move.4 0x20(%0), 16(%1)		\n\t"	\
++	"	move.4 0x24(%0), 20(%1)		\n\t"	\
++		:					\
++		: "a" (SECURITY_BASE), "a" (x)		\
++	)
++
++#define SEC_SET_KEY_8W(x)				\
++	asm volatile (					\
++	"	; write key to Security Keyblock \n\t"	\
++	"	move.4 0x10(%0), 0(%1)		\n\t"	\
++	"	move.4 0x14(%0), 4(%1)		\n\t"	\
++	"	move.4 0x18(%0), 8(%1)		\n\t"	\
++	"	move.4 0x1c(%0), 12(%1)		\n\t"	\
++	"	move.4 0x20(%0), 16(%1)		\n\t"	\
++	"	move.4 0x24(%0), 20(%1)		\n\t"	\
++	"	move.4 0x28(%0), 24(%1)		\n\t"	\
++	"	move.4 0x2c(%0), 28(%1)		\n\t"	\
++		:					\
++		: "a" (SECURITY_BASE), "a" (x)		\
++	)
++
++#define SEC_SET_KEY_64(k)	SEC_SET_KEY_2W(k)
++#define SEC_SET_KEY_128(k)	SEC_SET_KEY_4W(k)
++#define SEC_SET_KEY_192(k)	SEC_SET_KEY_6W(k)
++#define SEC_SET_KEY_256(k)	SEC_SET_KEY_8W(k)
++
++#define DES_SET_KEY(x) 		SEC_SET_KEY_64(x) 
++#define DES3_SET_KEY(x) 	SEC_SET_KEY_192(x)
++
++#define SEC_SET_INPUT_2W(x)				\
++	asm volatile (					\
++	"	; write key to Security Keyblock \n\t"	\
++	"	move.4 0x30(%0), 0(%1)		\n\t"	\
++	"	move.4 0x34(%0), 4(%1)		\n\t"	\
++		:					\
++		: "a" (SECURITY_BASE), "a" (x)		\
++	)
++
++#define SEC_GET_OUTPUT_2W(x)				\
++	asm volatile (					\
++	"	; write key to Security Keyblock \n\t"	\
++	"	move.4 0(%1), 0x50(%0)		\n\t"	\
++	"	move.4 4(%1), 0x54(%0)		\n\t"	\
++		:					\
++		: "a" (SECURITY_BASE), "a" (x)		\
++	)
++
++#define SEC_SET_INPUT_4W(x) \
++	asm volatile ( \
++	"	; write key to Security Keyblock \n\t"	\
++	"	move.4 0x30(%0), 0(%1)		\n\t"	\
++	"	move.4 0x34(%0), 4(%1)		\n\t"	\
++	"	move.4 0x38(%0), 8(%1)		\n\t"	\
++	"	move.4 0x3c(%0), 12(%1)		\n\t"	\
++		:					\
++		: "a" (SECURITY_BASE), "a" (x)		\
++	)
++
++#define SEC_GET_OUTPUT_4W(x)				\
++	asm volatile (					\
++	"	; read output from Security Keyblock \n\t" \
++	"	move.4 0(%1), 0x50(%0)		\n\t"	\
++	"	move.4 4(%1), 0x54(%0)		\n\t"	\
++	"	move.4 8(%1), 0x58(%0)		\n\t"	\
++	"	move.4 12(%1), 0x5c(%0)		\n\t"	\
++		:					\
++		: "a" (SECURITY_BASE), "a" (x)		\
++	)
++
++#define SEC_SET_IV_4W(x)				\
++	asm volatile (					\
++	"	; write IV to Security Keyblock  \n\t"	\
++	"	move.4 0x50(%0), 0(%1)		\n\t"	\
++	"	move.4 0x54(%0), 4(%1)		\n\t"	\
++	"	move.4 0x58(%0), 8(%1)		\n\t"	\
++	"	move.4 0x5c(%0), 12(%1)		\n\t"	\
++		:					\
++		: "a" (SECURITY_BASE), "a" (x)		\
++	)
++
++#define SEC_PIPE_FLUSH() asm volatile ( " pipe_flush 0 \n\t" )
++
++static inline void hw_crypto_set_ctrl(uint32_t c)
++{
++	asm volatile ( 					
++	"	move.4	0(%0), %1		\n\t"	
++		:					
++		: "a" (SECURITY_BASE + SECURITY_CTRL), "d" (c)	
++	);
++}
++
++static inline void hw_crypto_ps_start(void)
++{
++	crypto_ubicom32_ps_timer.expires = jiffies + msecs_to_jiffies(HW_CRYPTO_PS_MAX_IDLE_MS >> 1);
++	add_timer(&crypto_ubicom32_ps_timer);
++}
++
++static inline void hw_crypto_turn_on(void)
++{
++	asm volatile (				  
++	"	moveai  A4, %0			\n\t" 
++	"	bset    0x0(A4), 0x0(A4), %1	\n\t"
++	"	cycles 11			\n\t" 
++		:						
++		: "i" (OCP_BASE >> 7), "i" (GEN_CLK_PLL_SECURITY_BIT_NO) 
++		: "a4", "cc"
++	);
++	crypto_ubicom32_on = true;
++}
++
++static inline void hw_crypto_turn_off(void)
++{
++	asm volatile (				  
++	"	moveai  A4, %0			\n\t" 
++	"	bclr    0x0(A4), 0x0(A4), %1	\n\t" 
++		:						
++		: "i" (OCP_BASE >> 7), "i" (GEN_CLK_PLL_SECURITY_BIT_NO)    
++		: "a4", "cc"
++	);
++	crypto_ubicom32_on = false;
++}
++
++/*
++ * hw_crypto_check
++ * 	Most probably hw crypto is called in clusters and it makes no sense to turn it off
++ * 	and on and waster 13 cycles every time.
++ */
++static inline void hw_crypto_check(void)
++{
++	if (likely(crypto_ubicom32_on)) {
++		return;
++	}
++	crypto_ubicom32_last_use = jiffies;
++	hw_crypto_turn_on();
++	hw_crypto_ps_start();
++}
++
++/*
++ * hw_crypto_ps_init
++ * 	Init power save timer
++ */
++static inline void hw_crypto_ps_init(void)
++{
++	init_timer_deferrable(&crypto_ubicom32_ps_timer);
++	crypto_ubicom32_ps_timer.function = crypto_ubicom32_ps_check;
++	crypto_ubicom32_ps_timer.data = 0;
++}
++
++/*
++ * hw_crypto_init()
++ *      Initialize OCP security module lock and disables its clock.
++ */
++static inline void hw_crypto_init(void)
++{
++	if (!crypto_ubicom32_inited) {
++		crypto_ubicom32_inited = true;
++		spin_lock_init(&crypto_ubicom32_lock);
++		hw_crypto_ps_init();
++		hw_crypto_turn_off();
++	}
++}
++
++/*
++ * hw_crypto_lock()
++ *      Locks the OCP security module and enables its clock.
++ */
++static inline void hw_crypto_lock(void)
++{
++	spin_lock_bh(&crypto_ubicom32_lock);
++}
++
++/*
++ * hw_crypto_unlock()
++ *      Unlocks the OCP security module and disables its clock.
++ */
++static inline void hw_crypto_unlock(void)
++{
++	crypto_ubicom32_last_use = jiffies;
++	spin_unlock_bh(&crypto_ubicom32_lock);
++}
++
++#define CONFIG_CRYPTO_UBICOM32_DEBUG 1
++
++#ifdef CONFIG_CRYPTO_UBICOM32_DEBUG
++static inline void hex_dump(void *buf, int b_size, const char *msg)
++{
++	u8 *b = (u8 *)buf;
++	int i;
++	if (msg) {
++		printk("%s:\t", msg);
++	}
++
++	for (i=0; i < b_size; i++) {
++		printk("%02x ", b[i]);
++		if ((i & 3) == 3) {
++			printk(" ");
++		}
++		if ((i & 31) == 31) {
++			printk("\n");
++		}
++	}
++	printk("\n");
++}
++#define UBICOM32_SEC_DUMP(a, b, c) hex_dump(a, b, c)
++#else
++#define UBICOM32_SEC_DUMP(a, b, c)
++#endif
++
++#endif	/* _CRYPTO_ARCH_UBICOM32_CRYPT_H */
+--- /dev/null
++++ b/arch/ubicom32/crypto/des_check_key.c
+@@ -0,0 +1,148 @@
++/*
++ * arch/ubicom32/crypto/des_check_key.c
++ *   Ubicom32 architecture function for checking keys for the DES and
++ *   Tripple DES Encryption algorithms.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * Originally released as descore by Dana L. How <how@isl.stanford.edu>.
++ * Modified by Raimar Falke <rf13@inf.tu-dresden.de> for the Linux-Kernel.
++ * Derived from Cryptoapi and Nettle implementations, adapted for in-place
++ * scatterlist interface.  Changed LGPL to GPL per section 3 of the LGPL.
++ *
++ * s390 Version:
++ *   Copyright IBM Corp. 2003
++ *   Author(s): Thomas Spatzier
++ *		Jan Glauber (jan.glauber@de.ibm.com)
++ *
++ * Derived from "crypto/des.c"
++ *   Copyright (c) 1992 Dana L. How.
++ *   Copyright (c) Raimar Falke <rf13@inf.tu-dresden.de>
++ *   Copyright (c) Gisle Sflensminde <gisle@ii.uib.no>
++ *   Copyright (C) 2001 Niels Mvller.
++ *   Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/errno.h>
++#include <linux/crypto.h>
++#include "crypto_des.h"
++
++#define ROR(d,c,o)	((d) = (d) >> (c) | (d) << (o))
++
++static const u8 parity[] = {
++	8,1,0,8,0,8,8,0,0,8,8,0,8,0,2,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,3,
++	0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
++	0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
++	8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
++	0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
++	8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
++	8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
++	4,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,5,0,8,0,8,8,0,0,8,8,0,8,0,6,8,
++};
++
++/*
++ * RFC2451: Weak key checks SHOULD be performed.
++ */
++int
++crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags)
++{
++	u32 n, w;
++
++	n  = parity[key[0]]; n <<= 4;
++	n |= parity[key[1]]; n <<= 4;
++	n |= parity[key[2]]; n <<= 4;
++	n |= parity[key[3]]; n <<= 4;
++	n |= parity[key[4]]; n <<= 4;
++	n |= parity[key[5]]; n <<= 4;
++	n |= parity[key[6]]; n <<= 4;
++	n |= parity[key[7]];
++	w = 0x88888888L;
++
++	if ((*flags & CRYPTO_TFM_REQ_WEAK_KEY)
++	    && !((n - (w >> 3)) & w)) {  /* 1 in 10^10 keys passes this test */
++		if (n < 0x41415151) {
++			if (n < 0x31312121) {
++				if (n < 0x14141515) {
++					/* 01 01 01 01 01 01 01 01 */
++					if (n == 0x11111111) goto weak;
++					/* 01 1F 01 1F 01 0E 01 0E */
++					if (n == 0x13131212) goto weak;
++				} else {
++					/* 01 E0 01 E0 01 F1 01 F1 */
++					if (n == 0x14141515) goto weak;
++					/* 01 FE 01 FE 01 FE 01 FE */
++					if (n == 0x16161616) goto weak;
++				}
++			} else {
++				if (n < 0x34342525) {
++					/* 1F 01 1F 01 0E 01 0E 01 */
++					if (n == 0x31312121) goto weak;
++					/* 1F 1F 1F 1F 0E 0E 0E 0E (?) */
++					if (n == 0x33332222) goto weak;
++				} else {
++					/* 1F E0 1F E0 0E F1 0E F1 */
++					if (n == 0x34342525) goto weak;
++					/* 1F FE 1F FE 0E FE 0E FE */
++					if (n == 0x36362626) goto weak;
++				}
++			}
++		} else {
++			if (n < 0x61616161) {
++				if (n < 0x44445555) {
++					/* E0 01 E0 01 F1 01 F1 01 */
++					if (n == 0x41415151) goto weak;
++					/* E0 1F E0 1F F1 0E F1 0E */
++					if (n == 0x43435252) goto weak;
++				} else {
++					/* E0 E0 E0 E0 F1 F1 F1 F1 (?) */
++					if (n == 0x44445555) goto weak;
++					/* E0 FE E0 FE F1 FE F1 FE */
++					if (n == 0x46465656) goto weak;
++				}
++			} else {
++				if (n < 0x64646565) {
++					/* FE 01 FE 01 FE 01 FE 01 */
++					if (n == 0x61616161) goto weak;
++					/* FE 1F FE 1F FE 0E FE 0E */
++					if (n == 0x63636262) goto weak;
++				} else {
++					/* FE E0 FE E0 FE F1 FE F1 */
++					if (n == 0x64646565) goto weak;
++					/* FE FE FE FE FE FE FE FE */
++					if (n == 0x66666666) goto weak;
++				}
++			}
++		}
++	}
++	return 0;
++weak:
++	*flags |= CRYPTO_TFM_RES_WEAK_KEY;
++	return -EINVAL;
++}
++
++EXPORT_SYMBOL(crypto_des_check_key);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("Key Check function for DES &  DES3 Cipher Algorithms");
+--- /dev/null
++++ b/arch/ubicom32/crypto/des_ubicom32.c
+@@ -0,0 +1,761 @@
++/*
++ * arch/ubicom32/crypto/des_ubicom32.c
++ *   Ubicom32 implementation of the DES Cipher Algorithm.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <crypto/algapi.h>
++#include <linux/init.h>
++#include <linux/module.h>
++
++#include "crypto_ubicom32.h"
++extern int crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags);
++
++#define DES_BLOCK_SIZE 8
++#define DES_KEY_SIZE 8
++
++#define DES3_192_KEY_SIZE	(3 * DES_KEY_SIZE)
++#define DES3_192_BLOCK_SIZE	DES_BLOCK_SIZE
++
++#define DES3_SUB_KEY(key, i) 	(((u8 *)key) + (i * DES_KEY_SIZE))
++
++enum des_ops {
++	DES_ENCRYPT,
++	DES_DECRYPT,
++
++	DES3_EDE_ENCRYPT,
++	DES3_EDE_DECRYPT,
++
++#ifdef DES3_EEE
++	DES3_EEE_ENCRYPT,
++	DES3_EEE_DECRYPT,
++#endif
++};
++
++struct ubicom32_des_ctx {
++	u8 key[3 * DES_KEY_SIZE];
++	u32 ctrl;
++	int key_len;
++};
++
++static inline void des_hw_set_key(const u8 *key, u8 key_len)
++{
++	/*
++	 * HW 3DES is not tested yet, use DES just as ipOS
++	 */
++	DES_SET_KEY(key);
++}
++
++static inline void des_hw_cipher(u8 *out, const u8 *in)
++{
++	SEC_SET_INPUT_2W(in);
++
++	asm volatile (
++	"	; start DES by writing 0x38(SECURITY_BASE)	\n\t" 
++	"	move.4 0x38(%0), #0x01				\n\t" 
++	"	pipe_flush 0					\n\t" 
++	"							\n\t" 
++	"	; wait for the module to calculate the output	\n\t" 
++	"	btst 0x04(%0), #0				\n\t" 
++	"	jmpne.f .-4					\n\t" 
++		:
++		: "a" (SEC_BASE)
++		: "cc"
++	);
++	
++	SEC_GET_OUTPUT_2W(out);
++}
++
++
++static void inline des3_hw_ede_encrypt(u8 *keys, u8 *out, const u8 *in)
++{
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE);
++	des_hw_cipher(out, in);
++
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE);
++	des_hw_cipher(out, out);
++
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE);
++	des_hw_cipher(out, out);
++}
++
++static void inline des3_hw_ede_decrypt(u8 *keys, u8 *out, const u8 *in)
++{
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE);
++	des_hw_cipher(out, in);
++
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE);
++	des_hw_cipher(out, out);
++
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE);
++	des_hw_cipher(out, out);
++}
++
++#ifdef DES3_EEE
++static void inline des3_hw_eee_encrypt(u8 *keys, u8 *out, const u8 *in)
++{
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 0), 2);
++	des_hw_cipher(out, in);
++
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 1), 2);
++	des_hw_cipher(out, out);
++
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 2), 2);
++	des_hw_cipher(out, out);
++}
++
++static void inline des3_hw_eee_decrypt(u8 *keys, u8 *out, const u8 *in)
++{
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 2), 2);
++	des_hw_cipher(out, in);
++
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 1), 2);
++	des_hw_cipher(out, out);
++
++	hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++	des_hw_set_key(DES3_SUB_KEY(keys, 0), 2);
++	des_hw_cipher(out, out);
++}
++#endif
++
++static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
++		      unsigned int keylen)
++{
++	struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm);
++	u32 *flags = &tfm->crt_flags;
++	int ret;
++
++	/* test if key is valid (not a weak key) */
++	ret = crypto_des_check_key(key, keylen, flags);
++	if (ret == 0) {
++		memcpy(dctx->key, key, keylen);
++		dctx->key_len = keylen;
++		//dctx->ctrl = (keylen == DES_KEY_SIZE) ? SEC_ALG_DES : SEC_ALG_3DES
++		/* 2DES and 3DES are both implemented with DES hw function */
++		dctx->ctrl = SEC_ALG_DES;
++	}
++	return ret;
++}
++
++static inline void des_cipher_1b(struct crypto_tfm *tfm, u8 *out, const u8 *in, u32 extra_flags)
++{
++	const struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm);
++
++	hw_crypto_lock();
++	hw_crypto_check();
++	hw_crypto_set_ctrl(uctx->ctrl | extra_flags);
++
++	des_hw_set_key(uctx->key, uctx->key_len);
++	des_hw_cipher(out, in);
++
++	hw_crypto_unlock();	
++}
++
++static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
++{
++	des_cipher_1b(tfm, out, in, SEC_DIR_ENCRYPT);
++}
++
++static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
++{
++	des_cipher_1b(tfm, out, in, SEC_DIR_DECRYPT);
++}
++
++static struct crypto_alg des_alg = {
++	.cra_name		=	"des",
++	.cra_driver_name	=	"des-ubicom32",
++	.cra_priority		=	CRYPTO_UBICOM32_PRIORITY,
++	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
++	.cra_blocksize		=	DES_BLOCK_SIZE,
++	.cra_ctxsize		=	sizeof(struct ubicom32_des_ctx),
++	.cra_alignmask		=	CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_alignmask		=	CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_module		=	THIS_MODULE,
++	.cra_list		=	LIST_HEAD_INIT(des_alg.cra_list),
++	.cra_u			= {
++		.cipher = {
++			.cia_min_keysize	=	DES_KEY_SIZE,
++			.cia_max_keysize	=	DES_KEY_SIZE,
++			.cia_setkey		=	des_setkey,
++			.cia_encrypt		=	des_encrypt,
++			.cia_decrypt		=	des_decrypt,
++		}
++	}
++};
++
++static void ecb_des_ciper_loop(u8 *out, u8 *in, unsigned int n)
++{
++	while (likely(n)) {
++		des_hw_cipher(out, in);
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++
++static void ecb_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
++{
++	while (likely(n)) {
++		des3_hw_ede_encrypt(keys, out, in);
++		
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++
++static void ecb_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
++{
++	while (likely(n)) {
++		des3_hw_ede_decrypt(keys, out, in);
++
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++
++#ifdef DES3_EEE
++static void ecb_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
++{
++	while (likely(n)) {
++		des3_hw_eee_encrypt(keys, out, in);
++
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++
++static void ecb_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
++{
++	while (likely(n)) {
++		des3_hw_eee_decrypt(keys, out, in);
++
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++#endif
++
++static inline void ecb_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, unsigned int n)
++{
++	switch (op) {
++	case DES_ENCRYPT:
++	case DES_DECRYPT:
++		/* set the right algo, direction and key once */
++		hw_crypto_set_ctrl(SEC_ALG_DES | (op == DES_ENCRYPT ? SEC_DIR_ENCRYPT : 0));
++		des_hw_set_key(uctx->key, uctx->key_len);
++		ecb_des_ciper_loop(out, in, n);
++		break;
++
++	case DES3_EDE_ENCRYPT:
++		ecb_des3_ede_encrypt_loop(uctx->key, out, in, n);
++		break;
++
++	case DES3_EDE_DECRYPT:
++		ecb_des3_ede_decrypt_loop(uctx->key, out, in, n);
++		break;
++
++#ifdef DES3_EEE
++	case DES3_EEE_ENCRYPT:
++		ecb_des3_eee_encrypt_loop(uctx->key, out, in, n);
++		break;
++
++	case DES3_EEE_DECRYPT:
++		ecb_des3_eee_decrypt_loop(uctx->key, out, in, n);
++		break;
++#endif
++	}
++}
++
++static inline void des_xor_2w(u32 *data, u32 *iv)
++{
++	data[0] ^= iv[0];
++	data[1] ^= iv[1];
++}
++
++static void cbc_des_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++	while (likely(n)) {
++		des_xor_2w((u32 *)in, (u32 *)iv);
++		des_hw_cipher(out, in);
++		SEC_COPY_2W(iv, out);
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++
++static void cbc_des_decrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++	u8 next_iv[DES_BLOCK_SIZE];
++	while (likely(n)) {
++		SEC_COPY_2W(next_iv, in);
++		des_hw_cipher(out, in);
++		des_xor_2w((u32 *)out, (u32 *)iv);
++		SEC_COPY_2W(iv, next_iv);
++
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++
++static void cbc_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++	while (likely(n)) {
++		des_xor_2w((u32 *)in, (u32 *)iv);
++		des3_hw_ede_encrypt(keys, out, in);
++		SEC_COPY_2W(iv, out);
++
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++
++static void cbc_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++	u8 next_iv[DES_BLOCK_SIZE];
++	while (likely(n)) {
++		SEC_COPY_2W(next_iv, in);
++		des3_hw_ede_decrypt(keys, out, in);
++		des_xor_2w((u32 *)out, (u32 *)iv);
++		SEC_COPY_2W(iv, next_iv);
++
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++
++#ifdef DES3_EEE
++static void cbc_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++	while (likely(n)) {
++		des_xor_2w((u32 *)in, (u32 *)iv);
++		des3_hw_eee_encrypt(keys, out, in);
++		SEC_COPY_2W(iv, out);
++
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++
++static void cbc_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++	u8 next_iv[DES_BLOCK_SIZE];
++	while (likely(n)) {
++		SEC_COPY_2W(next_iv, in);
++		des3_hw_eee_decrypt(keys, out, in);
++		des_xor_2w((u32 *)out, (u32 *)iv);
++		SEC_COPY_2W(iv, next_iv);
++
++		out += DES_BLOCK_SIZE;
++		in += DES_BLOCK_SIZE;
++		n -= DES_BLOCK_SIZE;
++	}
++}
++#endif
++
++static inline void cbc_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++	switch (op) {
++	case DES_ENCRYPT:
++		hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++		des_hw_set_key(uctx->key, uctx->key_len);
++		cbc_des_encrypt_loop(out, in, iv, n);
++		break;
++		
++	case DES_DECRYPT:
++		/* set the right algo, direction and key once */
++		hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++		des_hw_set_key(uctx->key, uctx->key_len);
++		cbc_des_decrypt_loop(out, in, iv, n);
++		break;
++
++	case DES3_EDE_ENCRYPT:
++		cbc_des3_ede_encrypt_loop(uctx->key, out, in, iv, n);
++		break;
++
++	case DES3_EDE_DECRYPT:
++		cbc_des3_ede_decrypt_loop(uctx->key, out, in, iv, n);
++		break;
++
++#ifdef DES3_EEE
++	case DES3_EEE_ENCRYPT:
++		cbc_des3_eee_encrypt_loop(uctx->key, out, in, iv, n);
++		break;
++
++	case DES3_EEE_DECRYPT:
++		cbc_des3_eee_decrypt_loop(uctx->key, out, in, iv, n);
++		break;
++#endif
++	}
++}
++
++static int des_cipher(struct blkcipher_desc *desc, struct scatterlist *dst, 
++		      struct scatterlist *src, unsigned int nbytes, u32 extra_flags, enum des_ops op)
++{
++	struct ubicom32_des_ctx *uctx = crypto_blkcipher_ctx(desc->tfm);
++	int ret;
++	
++	struct blkcipher_walk walk;
++	blkcipher_walk_init(&walk, dst, src, nbytes);
++	ret = blkcipher_walk_virt(desc, &walk);
++	if (ret) {
++		return ret;
++	}
++
++	hw_crypto_lock();
++	hw_crypto_check();
++
++	while ((nbytes = walk.nbytes)) {
++		/* only use complete blocks */
++		unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
++		u8 *out = walk.dst.virt.addr;
++		u8 *in = walk.src.virt.addr;
++
++		/* finish n/16 blocks */
++		if (extra_flags & SEC_CBC_SET) {
++			cbc_des_cipher_n(uctx, op, out, in, walk.iv, n);
++		} else {
++			ecb_des_cipher_n(uctx, op, out, in, n);
++		}
++
++		nbytes &= DES_BLOCK_SIZE - 1;
++		ret = blkcipher_walk_done(desc, &walk, nbytes);
++	}
++
++	hw_crypto_unlock();
++	return ret;
++}
++
++static int ecb_des_encrypt(struct blkcipher_desc *desc,
++			   struct scatterlist *dst, struct scatterlist *src,
++			   unsigned int nbytes)
++{
++	return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_ENCRYPT);
++}
++
++static int ecb_des_decrypt(struct blkcipher_desc *desc,
++			   struct scatterlist *dst, struct scatterlist *src,
++			   unsigned int nbytes)
++{
++	return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_DECRYPT);
++}
++
++static struct crypto_alg ecb_des_alg = {
++	.cra_name		=	"ecb(des)",
++	.cra_driver_name	=	"ecb-des-ubicom32",
++	.cra_priority		=	CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER,
++	.cra_blocksize		=	DES_BLOCK_SIZE,
++	.cra_ctxsize		=	sizeof(struct ubicom32_des_ctx),
++	.cra_alignmask		=	CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_type		=	&crypto_blkcipher_type,
++	.cra_module		=	THIS_MODULE,
++	.cra_list		=	LIST_HEAD_INIT(ecb_des_alg.cra_list),
++	.cra_u			= {
++		.blkcipher = {
++			.min_keysize		=	DES_KEY_SIZE,
++			.max_keysize		=	DES_KEY_SIZE,
++			.setkey			=	des_setkey,
++			.encrypt		=	ecb_des_encrypt,
++			.decrypt		=	ecb_des_decrypt,
++		}
++	}
++};
++
++static int cbc_des_encrypt(struct blkcipher_desc *desc,
++			   struct scatterlist *dst, struct scatterlist *src,
++			   unsigned int nbytes)
++{
++	return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_ENCRYPT);
++}
++
++static int cbc_des_decrypt(struct blkcipher_desc *desc,
++			   struct scatterlist *dst, struct scatterlist *src,
++			   unsigned int nbytes)
++{
++	return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_DECRYPT);
++}
++
++static struct crypto_alg cbc_des_alg = {
++	.cra_name		=	"cbc(des)",
++	.cra_driver_name	=	"cbc-des-ubicom32",
++	.cra_priority		=	CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER,
++	.cra_blocksize		=	DES_BLOCK_SIZE,
++	.cra_ctxsize		=	sizeof(struct ubicom32_des_ctx),
++	.cra_alignmask		=	CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_type		=	&crypto_blkcipher_type,
++	.cra_module		=	THIS_MODULE,
++	.cra_list		=	LIST_HEAD_INIT(cbc_des_alg.cra_list),
++	.cra_u			= {
++		.blkcipher = {
++			.min_keysize		=	DES_KEY_SIZE,
++			.max_keysize		=	DES_KEY_SIZE,
++			.ivsize			=	DES_BLOCK_SIZE,
++			.setkey			=	des_setkey,
++			.encrypt		=	cbc_des_encrypt,
++			.decrypt		=	cbc_des_decrypt,
++		}
++	}
++};
++
++/*
++ * RFC2451:
++ *
++ *   For DES-EDE3, there is no known need to reject weak or
++ *   complementation keys.  Any weakness is obviated by the use of
++ *   multiple keys.
++ *
++ *   However, if the first two or last two independent 64-bit keys are
++ *   equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
++ *   same as DES.  Implementers MUST reject keys that exhibit this
++ *   property.
++ *
++ */
++static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key,
++			   unsigned int keylen)
++{
++	int i, ret;
++	struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm);
++	const u8 *temp_key = key;
++	u32 *flags = &tfm->crt_flags;
++
++	if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
++	    memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
++		   DES_KEY_SIZE))) {
++
++		*flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
++		return -EINVAL;
++	}
++	for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) {
++		ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
++		if (ret < 0)
++			return ret;
++	}
++	memcpy(dctx->key, key, keylen);
++	dctx->ctrl = SEC_ALG_DES;	//hw 3DES not working yet
++	dctx->key_len = keylen;
++	return 0;
++}
++
++static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
++{
++	struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm);
++
++	hw_crypto_lock();
++	hw_crypto_check();
++
++	des3_hw_ede_encrypt(uctx->key, dst, src);
++
++	hw_crypto_unlock();	
++}
++
++static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
++{
++	struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm);
++
++	hw_crypto_lock();
++	hw_crypto_check();
++
++	des3_hw_ede_decrypt(uctx->key, dst, src);
++
++	hw_crypto_unlock();	
++}
++
++static struct crypto_alg des3_192_alg = {
++	.cra_name		=	"des3_ede",
++	.cra_driver_name	=	"des3_ede-ubicom32",
++	.cra_priority		=	CRYPTO_UBICOM32_PRIORITY,
++	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
++	.cra_blocksize		=	DES3_192_BLOCK_SIZE,
++	.cra_ctxsize		=	sizeof(struct ubicom32_des_ctx),
++	.cra_alignmask		=	CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_module		=	THIS_MODULE,
++	.cra_list		=	LIST_HEAD_INIT(des3_192_alg.cra_list),
++	.cra_u			= {
++		.cipher = {
++			.cia_min_keysize	=	DES3_192_KEY_SIZE,
++			.cia_max_keysize	=	DES3_192_KEY_SIZE,
++			.cia_setkey		=	des3_192_setkey,
++			.cia_encrypt		=	des3_192_encrypt,
++			.cia_decrypt		=	des3_192_decrypt,
++		}
++	}
++};
++
++static int ecb_des3_192_encrypt(struct blkcipher_desc *desc,
++				struct scatterlist *dst,
++				struct scatterlist *src, unsigned int nbytes)
++{
++	return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_ENCRYPT);
++}
++
++static int ecb_des3_192_decrypt(struct blkcipher_desc *desc,
++				struct scatterlist *dst,
++				struct scatterlist *src, unsigned int nbytes)
++{
++	return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_DECRYPT);
++}
++
++static struct crypto_alg ecb_des3_192_alg = {
++	.cra_name		=	"ecb(des3_ede)",
++	.cra_driver_name	=	"ecb-des3_ede-ubicom32",
++	.cra_priority		=	CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER,
++	.cra_blocksize		=	DES3_192_BLOCK_SIZE,
++	.cra_ctxsize		=	sizeof(struct ubicom32_des_ctx),
++	.cra_alignmask		=	CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_type		=	&crypto_blkcipher_type,
++	.cra_module		=	THIS_MODULE,
++	.cra_list		=	LIST_HEAD_INIT(
++						ecb_des3_192_alg.cra_list),
++	.cra_u			= {
++		.blkcipher = {
++			.min_keysize		=	DES3_192_KEY_SIZE,
++			.max_keysize		=	DES3_192_KEY_SIZE,
++			.setkey			=	des3_192_setkey,
++			.encrypt		=	ecb_des3_192_encrypt,
++			.decrypt		=	ecb_des3_192_decrypt,
++		}
++	}
++};
++
++static int cbc_des3_192_encrypt(struct blkcipher_desc *desc,
++				struct scatterlist *dst,
++				struct scatterlist *src, unsigned int nbytes)
++{
++	return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_ENCRYPT);
++}
++
++static int cbc_des3_192_decrypt(struct blkcipher_desc *desc,
++				struct scatterlist *dst,
++				struct scatterlist *src, unsigned int nbytes)
++{
++	return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_DECRYPT);
++}
++
++static struct crypto_alg cbc_des3_192_alg = {
++	.cra_name		=	"cbc(des3_ede)",
++	.cra_driver_name	=	"cbc-des3_ede-ubicom32",
++	.cra_priority		=	CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER,
++	.cra_blocksize		=	DES3_192_BLOCK_SIZE,
++	.cra_ctxsize		=	sizeof(struct ubicom32_des_ctx),
++	.cra_alignmask		=	CRYPTO_UBICOM32_ALIGNMENT - 1,
++	.cra_type		=	&crypto_blkcipher_type,
++	.cra_module		=	THIS_MODULE,
++	.cra_list		=	LIST_HEAD_INIT(
++						cbc_des3_192_alg.cra_list),
++	.cra_u			= {
++		.blkcipher = {
++			.min_keysize		=	DES3_192_KEY_SIZE,
++			.max_keysize		=	DES3_192_KEY_SIZE,
++			.ivsize			=	DES3_192_BLOCK_SIZE,
++			.setkey			=	des3_192_setkey,
++			.encrypt		=	cbc_des3_192_encrypt,
++			.decrypt		=	cbc_des3_192_decrypt,
++		}
++	}
++};
++
++static int init(void)
++{
++	int ret = 0;
++
++	hw_crypto_init();
++
++	ret = crypto_register_alg(&des_alg);
++	if (ret)
++		goto des_err;
++	ret = crypto_register_alg(&ecb_des_alg);
++	if (ret)
++		goto ecb_des_err;
++	ret = crypto_register_alg(&cbc_des_alg);
++	if (ret)
++		goto cbc_des_err;
++
++	ret = crypto_register_alg(&des3_192_alg);
++	if (ret)
++		goto des3_192_err;
++	ret = crypto_register_alg(&ecb_des3_192_alg);
++	if (ret)
++		goto ecb_des3_192_err;
++	ret = crypto_register_alg(&cbc_des3_192_alg);
++	if (ret)
++		goto cbc_des3_192_err;
++
++out:
++	return ret;
++
++cbc_des3_192_err:
++	crypto_unregister_alg(&ecb_des3_192_alg);
++ecb_des3_192_err:
++	crypto_unregister_alg(&des3_192_alg);
++des3_192_err:
++	crypto_unregister_alg(&cbc_des_alg);
++cbc_des_err:
++	crypto_unregister_alg(&ecb_des_alg);
++ecb_des_err:
++	crypto_unregister_alg(&des_alg);
++des_err:
++	goto out;
++}
++
++static void __exit fini(void)
++{
++	crypto_unregister_alg(&cbc_des3_192_alg);
++	crypto_unregister_alg(&ecb_des3_192_alg);
++	crypto_unregister_alg(&des3_192_alg);
++	crypto_unregister_alg(&cbc_des_alg);
++	crypto_unregister_alg(&ecb_des_alg);
++	crypto_unregister_alg(&des_alg);
++}
++
++module_init(init);
++module_exit(fini);
++
++MODULE_ALIAS("des");
++MODULE_ALIAS("des3_ede");
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
+--- /dev/null
++++ b/arch/ubicom32/crypto/Makefile
+@@ -0,0 +1,36 @@
++#
++# arch/ubicom32/crypto/Makefile
++#	<TODO: Replace with short file description>
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not, 
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++obj-$(CONFIG_CRYPTO_UBICOM32) += crypto_ubicom32.o
++obj-$(CONFIG_CRYPTO_AES_UBICOM32) += aes_ubicom32.o
++obj-$(CONFIG_CRYPTO_DES_UBICOM32) += des.o
++obj-$(CONFIG_CRYPTO_MD5_UBICOM32) += md5.o
++obj-$(CONFIG_CRYPTO_SHA1_UBICOM32) += sha1.o
++
++des-y := des_ubicom32.o des_check_key.o
++md5-y := md5_ubicom32.o md5_ubicom32_asm.o
++sha1-y := sha1_ubicom32.o 
+--- /dev/null
++++ b/arch/ubicom32/crypto/md5_ubicom32_asm.S
+@@ -0,0 +1,235 @@
++/*
++ * arch/ubicom32/crypto/md5_ubicom32_asm.S
++ *	MD5 (Message Digest 5) support for Ubicom32 v3 architecture
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#define __ASM__
++#include <asm/ip5000.h>
++
++#ifndef RP
++#define RP A5
++#endif
++
++;*****************************************************************************************
++; The function prototypes
++;*****************************************************************************************
++; void md5_ip5k_init(void)
++; void md5_ip5k_transform(u32_t *data_input)
++; void md5_get_digest(u32_t *digest)
++
++;*****************************************************************************************
++; Inputs
++;*****************************************************************************************;
++; data_input is the pointer to the block of data over which the digest will be calculated.
++;	It should be word aligned.
++;
++; digest is the pointer to the block of data into which the digest (the output) will be written.
++;	It should be word aligned.
++;
++
++;*****************************************************************************************
++; Outputs
++;*****************************************************************************************
++; None
++
++;*****************************************************************************************
++; An: Address Registers
++;*****************************************************************************************
++#define an_digest A3
++#define an_data_input A3
++#define an_security_block A4
++
++;*****************************************************************************************
++; Hash Constants
++;*****************************************************************************************
++#define HASH_MD5_IN0 0x01234567
++#define HASH_MD5_IN1 0x89abcdef
++#define HASH_MD5_IN2 0xfedcba98
++#define HASH_MD5_IN3 0x76543210
++
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION 2
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_MD5 ((1 << 4) | HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION)
++
++;*****************************************************************************************
++; Hash related defines
++;*****************************************************************************************
++#define hash_control 0x00(an_security_block)
++#define hash_control_low 0x02(an_security_block)
++#define hash_status 0x04(an_security_block)
++
++#define hash_input_0 0x30(an_security_block)
++#define hash_input_1 0x34(an_security_block)
++#define hash_input_2 0x38(an_security_block)
++#define hash_input_3 0x3c(an_security_block)
++#define hash_input_4 0x40(an_security_block)
++
++#define hash_output_0 0x70(an_security_block)
++#define hash_output_0_low 0x72(an_security_block)
++#define hash_output_1 0x74(an_security_block)
++#define hash_output_1_low 0x76(an_security_block)
++#define hash_output_2 0x78(an_security_block)
++#define hash_output_2_low 0x7a(an_security_block)
++#define hash_output_3 0x7c(an_security_block)
++#define hash_output_3_low 0x7e(an_security_block)
++
++;*****************************************************************************************
++; Assembly macros
++;*****************************************************************************************
++	; C compiler reserves RP (A5) for return address during subroutine call.
++	; Use RP to return to caller
++.macro	call_return_macro
++	calli	RP, 0(RP)
++.endm
++
++#if 0
++;*****************************************************************************************
++;	void md5_ip5k_init(void)
++;		initialize the output registers of the hash module
++;
++	;.section .text.md5_ip5k_init,"ax",@progbits
++	.section .text
++	.global	_md5_ip5k_init
++	.func md5_ip5k_init, _md5_ip5k_init
++
++_md5_ip5k_init:
++	moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++	movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5)
++	movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5)
++
++	movei hash_output_0, #%hi(HASH_MD5_IN0)
++	movei hash_output_0_low, #%lo(HASH_MD5_IN0)
++
++	movei hash_output_1, #%hi(HASH_MD5_IN1)
++	movei hash_output_1_low, #%lo(HASH_MD5_IN1)
++
++	movei hash_output_2, #%hi(HASH_MD5_IN2)
++	movei hash_output_2_low, #%lo(HASH_MD5_IN2)
++
++	movei hash_output_3, #%hi(HASH_MD5_IN3)
++	movei hash_output_3_low, #%lo(HASH_MD5_IN3)
++
++	call_return_macro
++	.endfunc
++#endif
++
++;*****************************************************************************************
++;	void md5_ip5k_init_digest(u32_t *hash_input)
++;		initialize the output registers of the hash module
++
++	;.section .text.md5_ip5k_init_digest,"ax",@progbits
++	.section .text
++	.global	_md5_ip5k_init_digest
++	.func md5_ip5k_init_digest, _md5_ip5k_init_digest
++
++_md5_ip5k_init_digest:
++	movea an_data_input, D0
++
++	moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++	movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5)
++	movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5)
++
++	move.4 hash_output_0, (an_data_input)4++
++	move.4 hash_output_1, (an_data_input)4++
++	move.4 hash_output_2, (an_data_input)4++
++	move.4 hash_output_3, (an_data_input)4++
++
++	call_return_macro
++	.endfunc
++
++;*****************************************************************************************
++;	void md5_ip5k_transform(u32_t *data_input)
++;		performs intermediate transformation step for the hash calculation
++;
++	;.sect .text.md5_ip5k_transform,"ax",@progbits
++	.section .text
++	.global	_md5_ip5k_transform
++	.func md5_ip5k_transform, _md5_ip5k_transform
++
++_md5_ip5k_transform:
++	movea an_data_input, D0
++
++	moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++	; Write the first 128bits (16 bytes)
++	move.4 hash_input_0, (an_data_input)4++
++	move.4 hash_input_1, (an_data_input)4++
++	move.4 hash_input_2, (an_data_input)4++
++	move.4 hash_input_3, (an_data_input)4++
++	move.4 hash_input_4, D0
++
++	move.4 hash_input_0, (an_data_input)4++
++	move.4 hash_input_1, (an_data_input)4++
++	move.4 hash_input_2, (an_data_input)4++
++	move.4 hash_input_3, (an_data_input)4++
++	move.4 hash_input_4, D0
++
++	move.4 hash_input_0, (an_data_input)4++
++	move.4 hash_input_1, (an_data_input)4++
++	move.4 hash_input_2, (an_data_input)4++
++	move.4 hash_input_3, (an_data_input)4++
++	move.4 hash_input_4, D0
++
++	move.4 hash_input_0, (an_data_input)4++
++	move.4 hash_input_1, (an_data_input)4++
++	move.4 hash_input_2, (an_data_input)4++
++	move.4 hash_input_3, (an_data_input)4++
++	move.4 hash_input_4, D0
++
++	pipe_flush 0
++
++md5_ip5k_transform_wait:
++	; wait for the module to calculate the output hash
++	btst hash_status, #0
++	jmpne.f md5_ip5k_transform_wait
++
++	call_return_macro
++	.endfunc
++
++;*****************************************************************************************
++;	void md5_ip5k_get_digest(u32_t *digest)
++;		Return the hash of the input data
++;
++	;.sect .text.md5_get_digest,"ax",@progbits
++	.section .text
++	.global	_md5_ip5k_get_digest
++	.func md5_ip5k_get_digest, _md5_ip5k_get_digest
++
++_md5_ip5k_get_digest:
++	movea an_digest, D0
++
++	moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++	; we have finished
++	move.4 0(an_digest), hash_output_0
++	move.4 4(an_digest), hash_output_1
++	move.4 8(an_digest), hash_output_2
++	move.4 12(an_digest), hash_output_3
++
++	call_return_macro
++	.endfunc
++
+--- /dev/null
++++ b/arch/ubicom32/crypto/md5_ubicom32.c
+@@ -0,0 +1,200 @@
++/*
++ * arch/ubicom32/crypto/md5_ubicom32.c
++ *   Ubicom32 implementation of the MD5 Secure Hash Algorithm
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/crypto.h>
++
++#include "crypto_ubicom32.h"
++
++#define MD5_DIGEST_SIZE	16
++#define MD5_BLOCK_SIZE	64
++#define MD5_HASH_WORDS	4
++
++extern void _md5_ip5k_init_digest(u32_t *digest);
++extern void _md5_ip5k_transform(u32_t *data_input);
++extern void _md5_ip5k_get_digest(u32_t *digest);
++
++struct ubicom32_md5_ctx {
++	u64 count;		/* message length */
++	u32 state[MD5_HASH_WORDS];
++	u8 buf[2 * MD5_BLOCK_SIZE];
++};
++
++static void md5_init(struct crypto_tfm *tfm)
++{
++	struct ubicom32_md5_ctx *mctx = crypto_tfm_ctx(tfm);
++	mctx->state[0] = 0x01234567;
++	mctx->state[1] = 0x89abcdef;
++	mctx->state[2] = 0xfedcba98;
++	mctx->state[3] = 0x76543210;
++
++	mctx->count = 0;
++}
++
++static inline void _md5_process(u32 *digest, const u8 *data)
++{
++	_md5_ip5k_transform((u32 *)data);
++}
++
++static void md5_update(struct crypto_tfm *tfm, const u8 *data,
++			unsigned int len)
++{
++	struct ubicom32_md5_ctx *mctx = crypto_tfm_ctx(tfm);
++	int index, clen;
++
++	/* how much is already in the buffer? */
++	index = mctx->count & 0x3f;
++
++	mctx->count += len;
++
++	if (index + len < MD5_BLOCK_SIZE) {
++		goto store_only;
++	}
++
++	hw_crypto_lock();
++	hw_crypto_check();
++
++	/* init digest set ctrl register too */
++	_md5_ip5k_init_digest(mctx->state);
++
++	if (unlikely(index == 0 && SEC_ALIGNED(data))) {
++fast_process:
++		while (len >= MD5_BLOCK_SIZE) {
++			_md5_process(mctx->state, data);
++			data += MD5_BLOCK_SIZE;
++			len -= MD5_BLOCK_SIZE;
++		}
++		goto store;
++	}
++
++	/* process one stored block */
++	if (index) {
++		clen = MD5_BLOCK_SIZE - index;
++		memcpy(mctx->buf + index, data, clen);
++		_md5_process(mctx->state, mctx->buf);
++		data += clen;
++		len -= clen;
++		index = 0;
++	}
++
++	if (likely(SEC_ALIGNED(data))) {
++		goto fast_process;
++	}
++
++	/* process as many blocks as possible */
++	while (len >= MD5_BLOCK_SIZE) {
++		memcpy(mctx->buf, data, MD5_BLOCK_SIZE);
++		_md5_process(mctx->state, mctx->buf);
++		data += MD5_BLOCK_SIZE;
++		len -= MD5_BLOCK_SIZE;
++	}
++
++store:
++	_md5_ip5k_get_digest(mctx->state);
++	hw_crypto_unlock();
++
++store_only:
++	/* anything left? */
++	if (len)
++		memcpy(mctx->buf + index , data, len);
++}
++
++/* Add padding and return the message digest. */
++static void md5_final(struct crypto_tfm *tfm, u8 *out)
++{
++	struct ubicom32_md5_ctx *mctx = crypto_tfm_ctx(tfm);
++	u32 bits[2];
++	unsigned int index, end;
++
++	/* must perform manual padding */
++	index = mctx->count & 0x3f;
++	end =  (index < 56) ? MD5_BLOCK_SIZE : (2 * MD5_BLOCK_SIZE);
++
++	/* start pad with 1 */
++	mctx->buf[index] = 0x80;
++
++	/* pad with zeros */
++	index++;
++	memset(mctx->buf + index, 0x00, end - index - 8);
++
++	/* append message length */
++	bits[0] = mctx->count << 3;
++	bits[1] = mctx->count >> 29;
++	__cpu_to_le32s(bits);
++	__cpu_to_le32s(bits + 1);
++
++	memcpy(mctx->buf + end - 8, &bits, sizeof(bits));
++
++	/* force to use the mctx->buf and ignore the partial buf */
++	mctx->count = mctx->count & ~0x3f;
++	md5_update(tfm, mctx->buf, end);
++
++	/* copy digest to out */
++	memcpy(out, mctx->state, MD5_DIGEST_SIZE);
++
++	/* wipe context */
++	memset(mctx, 0, sizeof *mctx);
++}
++
++static struct crypto_alg alg = {
++	.cra_name	=	"md5",
++	.cra_driver_name=	"md5-ubicom32",
++	.cra_priority	=	CRYPTO_UBICOM32_PRIORITY,
++	.cra_flags	=	CRYPTO_ALG_TYPE_DIGEST,
++	.cra_blocksize	=	MD5_BLOCK_SIZE,
++	.cra_ctxsize	=	sizeof(struct ubicom32_md5_ctx),
++	.cra_module	=	THIS_MODULE,
++	.cra_list	=	LIST_HEAD_INIT(alg.cra_list),
++	.cra_u = {
++		.digest = {
++			.dia_digestsize =       MD5_DIGEST_SIZE,
++			.dia_init       =       md5_init,
++			.dia_update     =       md5_update,
++			.dia_final      =       md5_final,
++		}
++	}
++};
++
++static int __init init(void)
++{
++	hw_crypto_init();
++	return crypto_register_alg(&alg);
++}
++
++static void __exit fini(void)
++{
++	crypto_unregister_alg(&alg);
++}
++
++module_init(init);
++module_exit(fini);
++
++MODULE_ALIAS("md5");
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("MD5 Secure Hash Algorithm");
+--- /dev/null
++++ b/arch/ubicom32/crypto/sha1_ubicom32_asm.S
+@@ -0,0 +1,244 @@
++/*
++ * arch/ubicom32/crypto/sha1_ubicom32_asm.S
++ *	SHA1 hash support for Ubicom32 architecture V3.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#define __ASM__
++#include <asm/ip5000.h>
++
++#ifndef RP
++#define RP A5
++#endif
++
++;*****************************************************************************************
++; The function prototype
++;*****************************************************************************************
++; void sha1_ip5k_init(void)
++; void sha1_ip5k_transform(u32_t *data_input)
++; void sha1_ip5k_output(u32_t *digest)
++
++;*****************************************************************************************
++; Inputs
++;*****************************************************************************************
++; data_input is the pointer to the block of data over which the digest will be calculated.
++;	It should be word aligned.
++;
++; digest is the pointer to the block of data into which the digest (the output) will be written.
++;	It should be word aligned.
++;
++
++;*****************************************************************************************
++; Outputs
++;*****************************************************************************************
++; None
++
++;*****************************************************************************************
++; Hash Constants
++;*****************************************************************************************
++#define HASH_SHA1_IN0 0x67452301
++#define HASH_SHA1_IN1 0xefcdab89
++#define HASH_SHA1_IN2 0x98badcfe
++#define HASH_SHA1_IN3 0x10325476
++#define HASH_SHA1_IN4 0xc3d2e1f0
++
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION 2
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1 ((1 << 5) | HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION)
++
++;*****************************************************************************************
++; An: Address Registers
++;*****************************************************************************************
++#define an_digest a4
++#define an_data_input a4
++#define an_security_block a3
++
++;*****************************************************************************************
++; Hash related defines
++;*****************************************************************************************
++#define hash_control 0x00(an_security_block)
++#define hash_control_low 0x02(an_security_block)
++#define hash_status 0x04(an_security_block)
++
++#define hash_input_0 0x30(an_security_block)
++#define hash_input_1 0x34(an_security_block)
++#define hash_input_2 0x38(an_security_block)
++#define hash_input_3 0x3c(an_security_block)
++#define hash_input_4 0x40(an_security_block)
++
++#define hash_output_0 0x70(an_security_block)
++#define hash_output_0_low 0x72(an_security_block)
++#define hash_output_1 0x74(an_security_block)
++#define hash_output_1_low 0x76(an_security_block)
++#define hash_output_2 0x78(an_security_block)
++#define hash_output_2_low 0x7a(an_security_block)
++#define hash_output_3 0x7c(an_security_block)
++#define hash_output_3_low 0x7e(an_security_block)
++#define hash_output_4 0x80(an_security_block)
++#define hash_output_4_low 0x82(an_security_block)
++
++;*****************************************************************************************
++; Assembly macros
++;*****************************************************************************************
++	; C compiler reserves RP (A5) for return address during subroutine call.
++	; Use RP to return to caller
++.macro	call_return_macro
++	calli	RP, 0(RP)
++.endm
++
++;*****************************************************************************************
++;	void sha1_ip5k_init(void)
++;		initialize the output registers of the hash module
++
++	;.section .text.sha1_ip5k_init,"ax",@progbits
++	.section .ocm_text,"ax",@progbits
++	.global	_sha1_ip5k_init
++	.func sha1_ip5k_init, _sha1_ip5k_init
++
++_sha1_ip5k_init:
++	moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++	movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1)
++	movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1)
++
++	movei hash_output_0, #%hi(HASH_SHA1_IN0)
++	movei hash_output_0_low, #%lo(HASH_SHA1_IN0)
++
++	movei hash_output_1, #%hi(HASH_SHA1_IN1)
++	movei hash_output_1_low, #%lo(HASH_SHA1_IN1)
++
++	movei hash_output_2, #%hi(HASH_SHA1_IN2)
++	movei hash_output_2_low, #%lo(HASH_SHA1_IN2)
++
++	movei hash_output_3, #%hi(HASH_SHA1_IN3)
++	movei hash_output_3_low, #%lo(HASH_SHA1_IN3)
++
++	movei hash_output_4, #%hi(HASH_SHA1_IN4)
++	movei hash_output_4_low, #%lo(HASH_SHA1_IN4)
++
++	call_return_macro
++	.endfunc
++
++;*****************************************************************************************
++;	void sha1_ip5k_init_digest(u32_t *hash_input)
++;		initialize the output registers of the hash module
++
++	;.section .text.sha1_ip5k_init_digest,"ax",@progbits
++	.section .ocm_text,"ax",@progbits
++	.global	_sha1_ip5k_init_digest
++	.func sha1_ip5k_init_digest, _sha1_ip5k_init_digest
++
++_sha1_ip5k_init_digest:
++	movea an_data_input, D0
++
++	moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++	movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1)
++	movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1)
++
++	move.4 hash_output_0, (an_data_input)4++
++	move.4 hash_output_1, (an_data_input)4++
++	move.4 hash_output_2, (an_data_input)4++
++	move.4 hash_output_3, (an_data_input)4++
++	move.4 hash_output_4, (an_data_input)4++
++
++	call_return_macro
++	.endfunc
++
++;*****************************************************************************************
++;	void sha1_ip5k_transform(u32_t *data_input)
++;		performs intermediate transformation step for the hash calculation
++
++	;.section .text.sha1_ip5k_transform,"ax",@progbits
++	.section .ocm_text,"ax",@progbits
++	.global	_sha1_ip5k_transform
++	.func sha1_ip5k_transform, _sha1_ip5k_transform
++
++_sha1_ip5k_transform:
++	movea an_data_input, D0
++
++	moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++	; Write the first 128bits (16 bytes)
++	move.4 hash_input_0, (an_data_input)4++
++	move.4 hash_input_1, (an_data_input)4++
++	move.4 hash_input_2, (an_data_input)4++
++	move.4 hash_input_3, (an_data_input)4++
++	move.4 hash_input_4, D0
++
++	move.4 hash_input_0, (an_data_input)4++
++	move.4 hash_input_1, (an_data_input)4++
++	move.4 hash_input_2, (an_data_input)4++
++	move.4 hash_input_3, (an_data_input)4++
++	move.4 hash_input_4, D0
++
++	move.4 hash_input_0, (an_data_input)4++
++	move.4 hash_input_1, (an_data_input)4++
++	move.4 hash_input_2, (an_data_input)4++
++	move.4 hash_input_3, (an_data_input)4++
++	move.4 hash_input_4, D0
++
++	move.4 hash_input_0, (an_data_input)4++
++	move.4 hash_input_1, (an_data_input)4++
++	move.4 hash_input_2, (an_data_input)4++
++	move.4 hash_input_3, (an_data_input)4++
++	move.4 hash_input_4, D0
++
++	pipe_flush 0
++
++sha1_ip5k_transform_wait:
++	; wait for the module to calculate the output hash
++	btst hash_status, #0
++	jmpne.f sha1_ip5k_transform_wait
++
++	call_return_macro
++	.endfunc
++
++;*****************************************************************************************
++;	void sha1_ip5k_output(u32_t *digest)
++;		Return the hash of the input data
++
++	;.section .text.sha1_ip5k_output,"ax",@progbits
++	.section .ocm_text,"ax",@progbits
++	.global	_sha1_ip5k_output
++	.func sha1_ip5k_output, _sha1_ip5k_output
++
++_sha1_ip5k_output:
++	movea an_digest, D0
++
++	moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++	; we have finished
++	move.4 0(an_digest), hash_output_0
++	move.4 4(an_digest), hash_output_1
++	move.4 8(an_digest), hash_output_2
++	move.4 12(an_digest), hash_output_3
++	move.4 16(an_digest), hash_output_4
++
++	call_return_macro
++	.endfunc
++
++;*****************************************************************************************
++;END			;End of program code
++;*****************************************************************************************
+--- /dev/null
++++ b/arch/ubicom32/crypto/sha1_ubicom32.c
+@@ -0,0 +1,354 @@
++/*
++ * arch/ubicom32/crypto/sha1_ubicom32.c
++ *   Ubicom32 implementation of the SHA1 Secure Hash Algorithm.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/crypto.h>
++#include <crypto/sha.h>
++#include <asm/linkage.h>
++
++#include "crypto_ubicom32.h"
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION 2
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1 ((1 << 5) | HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION)
++
++struct ubicom32_sha1_ctx {
++	u64 count;		/* message length */
++	u32 state[5];
++	u8 buf[2 * SHA1_BLOCK_SIZE];
++};
++
++static inline void sha1_clear_2ws(u8 *buf, int wc)
++{
++	asm volatile (
++	"1:	move.4	(%0)4++, #0		\n\t"
++	"	move.4	(%0)4++, #0		\n\t"
++	"	sub.4	%1, #2, %1		\n\t"
++	"	jmple.f	1b			\n\t"
++		:
++		: "a" (buf), "d" (wc)
++		: "cc"
++	);
++}
++
++/* only wipe out count, state, and 1st half of buf - 9 bytes at most */
++#define sha1_wipe_out(sctx) sha1_clear_2ws((u8 *)sctx, 2 + 5 + 16 - 2)
++
++static inline void sha1_init_digest(u32 *digest)
++{
++	hw_crypto_set_ctrl(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1);
++	asm volatile (
++	"	; move digests to hash_output regs	\n\t"
++	"	move.4	0x70(%0), 0x0(%1)		\n\t"
++	"	move.4	0x74(%0), 0x4(%1)		\n\t"
++	"	move.4	0x78(%0), 0x8(%1)		\n\t"
++	"	move.4	0x7c(%0), 0xc(%1)		\n\t"
++	"	move.4	0x80(%0), 0x10(%1)		\n\t"
++		:
++		: "a" (SEC_BASE), "a" (digest)
++	);
++}
++
++static inline void sha1_transform_feed(const u8 *in)
++{
++	asm volatile (
++	"	; write the 1st 16 bytes	\n\t"
++	"	move.4	0x30(%0), 0x0(%1)	\n\t"
++	"	move.4	0x34(%0), 0x4(%1)	\n\t"
++	"	move.4	0x38(%0), 0x8(%1)	\n\t"
++	"	move.4	0x3c(%0), 0xc(%1)	\n\t"
++	"	move.4	0x40(%0), %1		\n\t"
++	"	; write the 2nd 16 bytes	\n\t"
++	"	move.4	0x30(%0), 0x10(%1)	\n\t"
++	"	move.4	0x34(%0), 0x14(%1)	\n\t"
++	"	move.4	0x38(%0), 0x18(%1)	\n\t"
++	"	move.4	0x3c(%0), 0x1c(%1)	\n\t"
++	"	move.4	0x40(%0), %1		\n\t"
++	"	; write the 3rd 16 bytes	\n\t"
++	"	move.4	0x30(%0), 0x20(%1)	\n\t"
++	"	move.4	0x34(%0), 0x24(%1)	\n\t"
++	"	move.4	0x38(%0), 0x28(%1)	\n\t"
++	"	move.4	0x3c(%0), 0x2c(%1)	\n\t"
++	"	move.4	0x40(%0), %1		\n\t"
++	"	; write the 4th 16 bytes	\n\t"
++	"	move.4	0x30(%0), 0x30(%1)	\n\t"
++	"	move.4	0x34(%0), 0x34(%1)	\n\t"
++	"	move.4	0x38(%0), 0x38(%1)	\n\t"
++	"	move.4	0x3c(%0), 0x3c(%1)	\n\t"
++	"	move.4	0x40(%0), %1		\n\t"
++	"	pipe_flush 0			\n\t" 
++		:
++		: "a"(SEC_BASE), "a"(in)
++	);
++}
++
++static inline void sha1_transform_wait(void)
++{
++	asm volatile (
++	"	btst	0x04(%0), #0		\n\t"
++	"	jmpne.f -4			\n\t"
++		:
++		: "a"(SEC_BASE)
++		: "cc"
++	);
++}
++
++static inline void sha1_output_digest(u32 *digest)
++{
++	asm volatile (
++	"	move.4	0x0(%1), 0x70(%0)		\n\t"
++	"	move.4	0x4(%1), 0x74(%0)		\n\t"
++	"	move.4	0x8(%1), 0x78(%0)		\n\t"
++	"	move.4	0xc(%1), 0x7c(%0)		\n\t"
++	"	move.4	0x10(%1), 0x80(%0)		\n\t"
++		: 
++		: "a" (SEC_BASE), "a" (digest)
++	);
++}
++
++static __ocm_text void sha1_init(struct crypto_tfm *tfm)
++{
++	struct ubicom32_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
++
++	sctx->state[0] = SHA1_H0;
++	sctx->state[1] = SHA1_H1;
++	sctx->state[2] = SHA1_H2;
++	sctx->state[3] = SHA1_H3;
++	sctx->state[4] = SHA1_H4;
++	sctx->count = 0;
++}
++
++static void __ocm_text sha1_update(struct crypto_tfm *tfm, const u8 *data,
++			unsigned int len)
++{
++	struct ubicom32_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
++	int index, clen;
++
++	/* how much is already in the buffer? */
++	index = sctx->count & 0x3f;
++
++	sctx->count += len;
++
++	if (index + len < SHA1_BLOCK_SIZE) {
++		goto store_only;
++	}
++
++	hw_crypto_lock();
++	hw_crypto_check();
++
++	/* init digest set ctrl register too */
++	sha1_init_digest(sctx->state);
++
++	if (unlikely(index == 0 && SEC_ALIGNED(data))) {
++fast_process:
++#if CRYPTO_UBICOM32_LOOP_ASM 
++		if (likely(len >= SHA1_BLOCK_SIZE)) {
++			register unsigned int cnt = len >> 6; 	// loop = len / 64;
++			sha1_transform_feed(data);
++			data += SHA1_BLOCK_SIZE;
++
++			/* cnt is pre-decremented in the loop */
++			asm volatile (
++			"; while (--loop):  work on 2nd block   \n\t"
++			"1:	add.4	%2, #-1, %2		\n\t"
++			"	jmpeq.f	5f			\n\t"
++			"					\n\t"
++			"	; write the 1st 16 bytes	\n\t"
++			"	move.4	0x30(%1), (%0)4++	\n\t"
++			"	move.4	0x34(%1), (%0)4++	\n\t"
++			"	move.4	0x38(%1), (%0)4++	\n\t"
++			"	move.4	0x3c(%1), (%0)4++	\n\t"
++			"	; can not kick off hw before it \n\t"
++			"	; is done with the prev block   \n\t"
++			"					\n\t"
++			"	btst	0x04(%1), #0		\n\t"
++			"	jmpne.f	-4			\n\t"
++			"					\n\t"
++			"	; tell hw to load 1st 16 bytes  \n\t"
++			"	move.4	0x40(%1), %2		\n\t"
++			"					\n\t"
++			"	; write the 2nd 16 bytes	\n\t"
++			"	move.4	0x30(%1), (%0)4++	\n\t"
++			"	move.4	0x34(%1), (%0)4++	\n\t"
++			"	move.4	0x38(%1), (%0)4++	\n\t"
++			"	move.4	0x3c(%1), (%0)4++	\n\t"
++			"	move.4	0x40(%1), %2		\n\t"
++			"					\n\t"
++			"	; write the 3rd 16 bytes	\n\t"
++			"	move.4	0x30(%1), (%0)4++	\n\t"
++			"	move.4	0x34(%1), (%0)4++	\n\t"
++			"	move.4	0x38(%1), (%0)4++	\n\t"
++			"	move.4	0x3c(%1), (%0)4++	\n\t"
++			"	move.4	0x40(%1), %2		\n\t"
++			"					\n\t"
++			"	; write the 4th 16 bytes	\n\t"
++			"	move.4	0x30(%1), (%0)4++	\n\t"
++			"	move.4	0x34(%1), (%0)4++	\n\t"
++			"	move.4	0x38(%1), (%0)4++	\n\t"
++			"	move.4	0x3c(%1), (%0)4++	\n\t"
++			"	move.4	0x40(%1), %2		\n\t"
++			"					\n\t"
++			"; no need flush, enough insts		\n\t"
++			"; before next hw wait			\n\t"
++			"					\n\t"
++			"; go back to loop			\n\t"
++			"	jmpt 1b				\n\t"
++			"					\n\t"
++			"; wait hw for last block		\n\t"
++			"5:	btst 0x04(%1), #0		\n\t"
++			"	jmpne.f -4			\n\t"
++			"					\n\t"
++				: "+a" (data)
++				: "a"( SEC_BASE), "d" (cnt)
++				: "cc"
++			);
++
++			len = len & (64 - 1);
++		}
++#else
++		while (likely(len >= SHA1_BLOCK_SIZE)) {
++			sha1_transform_feed(data);
++			data += SHA1_BLOCK_SIZE;
++			len -= SHA1_BLOCK_SIZE;
++			sha1_transform_wait();
++		}
++#endif
++		goto store;
++	}
++
++	/* process one stored block */
++	if (index) {
++		clen = SHA1_BLOCK_SIZE - index;
++		memcpy(sctx->buf + index, data, clen);
++		sha1_transform_feed(sctx->buf);
++		data += clen;
++		len -= clen;
++		index = 0;
++		sha1_transform_wait();
++	}
++
++	if (likely(SEC_ALIGNED(data))) {
++		goto fast_process;
++	}
++
++	/* process as many blocks as possible */
++	if (likely(len >= SHA1_BLOCK_SIZE)) {
++		memcpy(sctx->buf, data, SHA1_BLOCK_SIZE);
++		do {
++			sha1_transform_feed(sctx->buf);
++			data += SHA1_BLOCK_SIZE;
++			len -= SHA1_BLOCK_SIZE;
++			if (likely(len >= SHA1_BLOCK_SIZE)) {
++				memcpy(sctx->buf, data, SHA1_BLOCK_SIZE);
++				sha1_transform_wait();
++				continue;
++			}
++			/* it is the last block */	
++			sha1_transform_wait();
++			break;
++		} while (1);
++	}
++
++store:
++	sha1_output_digest(sctx->state);
++	hw_crypto_unlock();
++
++store_only:
++	/* anything left? */
++	if (len)
++		memcpy(sctx->buf + index , data, len);
++}
++
++/* Add padding and return the message digest. */
++static void __ocm_text sha1_final(struct crypto_tfm *tfm, u8 *out)
++{
++	struct ubicom32_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
++	u64 bits;
++	unsigned int index, end;
++
++	/* must perform manual padding */
++	index = sctx->count & 0x3f;
++	end =  (index < 56) ? SHA1_BLOCK_SIZE : (2 * SHA1_BLOCK_SIZE);
++
++	/* start pad with 1 */
++	sctx->buf[index] = 0x80;
++
++	/* pad with zeros */
++	index++;
++	memset(sctx->buf + index, 0x00, end - index - 8);
++
++	/* append message length */
++	bits = sctx->count << 3 ;
++	SEC_COPY_2W(sctx->buf + end - 8, &bits);
++
++	/* force to use the sctx->buf and ignore the partial buf */
++	sctx->count = sctx->count & ~0x3f;
++	sha1_update(tfm, sctx->buf, end);
++
++	/* copy digest to out */
++	SEC_COPY_5W(out, sctx->state);
++
++	/* wipe context */
++	sha1_wipe_out(sctx);
++}
++
++static struct crypto_alg alg = {
++	.cra_name	=	"sha1",
++	.cra_driver_name=	"sha1-ubicom32",
++	.cra_priority	=	CRYPTO_UBICOM32_PRIORITY,
++	.cra_flags	=	CRYPTO_ALG_TYPE_DIGEST,
++	.cra_blocksize	=	SHA1_BLOCK_SIZE,
++	.cra_ctxsize	=	sizeof(struct ubicom32_sha1_ctx),
++	.cra_module	=	THIS_MODULE,
++	.cra_list	=	LIST_HEAD_INIT(alg.cra_list),
++	.cra_u	  = {
++		.digest = {
++			.dia_digestsize =       SHA1_DIGEST_SIZE,
++			.dia_init       =       sha1_init,
++			.dia_update     =       sha1_update,
++			.dia_final      =       sha1_final,
++		}
++	}
++};
++
++static int __init init(void)
++{
++	hw_crypto_init();
++	return crypto_register_alg(&alg);
++}
++
++static void __exit fini(void)
++{
++	crypto_unregister_alg(&alg);
++}
++
++module_init(init);
++module_exit(fini);
++
++MODULE_ALIAS("sha1");
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
+--- /dev/null
++++ b/arch/ubicom32/include/asm/a.out.h
+@@ -0,0 +1,47 @@
++/*
++ * arch/ubicom32/include/asm/a.out.h
++ *   Definitions for Ubicom32 a.out executable format.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_A_OUT_H
++#define _ASM_UBICOM32_A_OUT_H
++
++struct exec
++{
++  unsigned long a_info;		/* Use macros N_MAGIC, etc for access */
++  unsigned a_text;		/* length of text, in bytes */
++  unsigned a_data;		/* length of data, in bytes */
++  unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
++  unsigned a_syms;		/* length of symbol table data in file, in bytes */
++  unsigned a_entry;		/* start address */
++  unsigned a_trsize;		/* length of relocation info for text, in bytes */
++  unsigned a_drsize;		/* length of relocation info for data, in bytes */
++};
++
++#define N_TRSIZE(a)	((a).a_trsize)
++#define N_DRSIZE(a)	((a).a_drsize)
++#define N_SYMSIZE(a)	((a).a_syms)
++
++#endif /* _ASM_UBICOM32_A_OUT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/atomic.h
+@@ -0,0 +1,352 @@
++/*
++ * arch/ubicom32/include/asm/atomic.h
++ *   Atomic operations definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ATOMIC_H
++#define _ASM_UBICOM32_ATOMIC_H
++
++#include <asm/system.h>
++#include <asm/ubicom32-common.h>
++#include <asm/types.h>
++
++/*
++ * Most instructions on the Ubicom32 processor are atomic in that they
++ * execute in one clock cycle.  However, Linux has several operations
++ * (e.g. compare and swap) which will require more than a single instruction
++ * to perform.   To achieve this, the Ubicom32 processor uses a single
++ * global bit in a scratchpad register as a critical section lock. All
++ * atomic operations acquire this lock.
++ *
++ * NOTE: To AVOID DEADLOCK(s), the atomic lock must only be used for atomic
++ * operations or by the ldsr to avoid disabling a thread performing an atomic
++ * operation.
++ *
++ * Do not attempt to disable interrupts while holding the atomic operations
++ * lock or you will DEADLOCK the system.
++ */
++
++typedef struct {
++	volatile int counter;
++} atomic_t;
++
++#define ATOMIC_INIT(i)	{ (i) }
++
++/*
++ * __atomic_add()
++ * 	Add i to v and return the result.
++ */
++static inline void __atomic_add(int i, atomic_t *v)
++{
++	atomic_t *vt = v;
++
++	__atomic_lock_acquire();
++	vt->counter += i;
++	__atomic_lock_release();
++}
++
++/*
++ * __atomic_sub()
++ * 	Subtract i from v and return the result.
++ */
++static inline void __atomic_sub(int i, atomic_t *v)
++{
++	atomic_t *vt = v;
++
++	__atomic_lock_acquire();
++	vt->counter -= i;
++	__atomic_lock_release();
++}
++
++/*
++ * __atomic_add_return()
++ * 	Add i to v and return the result.
++ *
++ * The implementation here looks rather odd because we appear to be doing
++ * the addition twice.  In fact that's exactly what we're doing but with
++ * the ubicom32 instruction set we can do the inner load and add with two
++ * instructions whereas generating both the atomic result and the "ret"
++ * result requires three instructions.  The second add is generally only as
++ * costly as a move instruction and in cases where we compare the result
++ * with a constant the compiler can fold two constant values and do a
++ * single instruction, thus saving an instruction overall!
++ *
++ * At the worst we save one instruction inside the atomic lock.
++ */
++static inline int __atomic_add_return(int i, atomic_t *v)
++{
++	int ret;
++	atomic_t *vt = v;
++
++	__atomic_lock_acquire();
++	ret = vt->counter;
++	vt->counter = ret + i;
++	__atomic_lock_release();
++
++	return ret + i;
++}
++
++/*
++ * __atomic_sub_return()
++ * 	Subtract i from v and return the result.
++ *
++ * The implementation here looks rather odd because we appear to be doing
++ * the subtraction twice.  In fact that's exactly what we're doing but with
++ * the ubicom32 instruction set we can do the inner load and sub with two
++ * instructions whereas generating both the atomic result and the "ret"
++ * result requires three instructions.  The second sub is generally only as
++ * costly as a move instruction and in cases where we compare the result
++ * with a constant the compiler can fold two constant values and do a
++ * single instruction, thus saving an instruction overall!
++ *
++ * At the worst we save one instruction inside the atomic lock.
++ */
++static inline int __atomic_sub_return(int i, atomic_t *v)
++{
++	int ret;
++	atomic_t *vt = v;
++
++	__atomic_lock_acquire();
++	ret = vt->counter;
++	vt->counter = ret - i;
++	__atomic_lock_release();
++
++	return ret - i;
++}
++
++/*
++ * PUBLIC API FOR ATOMIC!
++ */
++#define atomic_add(i,v)	(__atomic_add( ((int)i),(v)))
++#define atomic_sub(i,v)	(__atomic_sub( ((int)i),(v)))
++#define atomic_inc(v)	(__atomic_add(   1,(v)))
++#define atomic_dec(v)	(__atomic_sub(   1,(v)))
++#define atomic_add_return(i,v)	(__atomic_add_return( ((int)i),(v)))
++#define atomic_sub_return(i,v)	(__atomic_sub_return( ((int)i),(v)))
++#define atomic_inc_return(v)	(__atomic_add_return(   1,(v)))
++#define atomic_dec_return(v)	(__atomic_sub_return(   1,(v)))
++#define atomic_inc_and_test(v)	(atomic_inc_return(v) == 0)
++#define atomic_dec_and_test(v)	(atomic_dec_return(v) == 0)
++#define atomic_add_negative(a, v)	(atomic_add_return((a), (v)) < 0)
++#define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
++
++/*
++ * atomic_read()
++ * 	Acquire the atomic lock and read the variable.
++ */
++static inline int atomic_read(const atomic_t *v)
++{
++	int ret;
++	const atomic_t *vt = v;
++
++	__atomic_lock_acquire();
++	ret = vt->counter;
++	__atomic_lock_release();
++
++	return ret;
++}
++
++/*
++ * atomic_set()
++ * 	Acquire the atomic lock and set the variable.
++ */
++static inline void atomic_set(atomic_t *v, int i)
++{
++	atomic_t *vt = v;
++
++	__atomic_lock_acquire();
++	vt->counter = i;
++	__atomic_lock_release();
++}
++
++/*
++ * atomic_cmpxchg
++ * 	Acquire the atomic lock and exchange if current == old.
++ */
++static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
++{
++	int prev;
++	atomic_t *vt = v;
++
++	__atomic_lock_acquire();
++	prev = vt->counter;
++	if (prev == old) {
++		vt->counter = new;
++	}
++	__atomic_lock_release();
++
++	return prev;
++}
++
++/*
++ * atomic_xchg()
++ * 	Acquire the atomic lock and exchange values.
++ */
++static inline int atomic_xchg(atomic_t *v, int new)
++{
++	int prev;
++	atomic_t *vt = v;
++
++	__atomic_lock_acquire();
++	prev = vt->counter;
++	vt->counter = new;
++	__atomic_lock_release();
++
++	return prev;
++}
++
++/*
++ * atomic_add_unless()
++ * 	Acquire the atomic lock and add a unless the value is u.
++ */
++static inline int atomic_add_unless(atomic_t *v, int a, int u)
++{
++	int prev;
++	atomic_t *vt = v;
++
++	__atomic_lock_acquire();
++	prev = vt->counter;
++	if (prev != u) {
++		vt->counter += a;
++		__atomic_lock_release();
++		return 1;
++	}
++
++	__atomic_lock_release();
++	return 0;
++}
++
++#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
++
++#include <asm-generic/atomic.h>
++
++/* 
++ * The following is not a real function.  The compiler should remove the function
++ * call as long as the user does not pass in a size that __xchg and __cmpxchg
++ * are not prepared for.  If the user does pass in an unknown size, the user
++ * will get a link time error.
++ *
++ * The no return is to prevent a compiler error that can occur when dealing with
++ * uninitialized variables. Given that the function doesn't exist there is no
++ * net effect (and if it did it would not return).
++ */
++extern void __xchg_called_with_bad_pointer(void) __attribute__((noreturn));
++
++/*
++ * __xchg()
++ *	Xchange *ptr for x atomically.
++ *
++ * Must be both locally atomic and atomic on SMP. Ubicom32 does not have an
++ * atomic exchange instruction so we use the global atomic_lock.
++ */
++static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size)
++{
++	unsigned long ret;
++
++	__atomic_lock_acquire();
++
++	switch (size) {
++	case 1:
++		ret = *(volatile unsigned char *)ptr;
++		*(volatile unsigned char *)ptr = x;
++		break;
++
++	case 2:
++		ret = *(volatile unsigned short *)ptr;
++		*(volatile unsigned short *)ptr = x;
++		break;
++
++	case 4:
++		ret = *(volatile unsigned int *)ptr;
++		*(volatile unsigned int *)ptr = x;
++		break;
++
++	default:
++		__xchg_called_with_bad_pointer();
++		break;
++	}
++	__atomic_lock_release();
++	return ret;
++}
++
++#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
++
++/*
++ * __cmpxchg()
++ *	Compare and Xchange *ptr for x atomically.
++ *
++ * Must be both locally atomic and atomic on SMP. Ubicom32 does not have an
++ * atomic exchange instruction so we use the global atomic_lock.
++ */
++static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, unsigned long next, int size)
++{
++	unsigned long prev;
++
++	__atomic_lock_acquire();
++	switch (size) {
++	case 1: 
++		prev = *(u8 *)ptr;
++		if (prev == old) {
++			*(u8 *)ptr = (u8)next;
++		}
++		break;
++
++	case 2: 
++		prev = *(u16 *)ptr;
++		if (prev == old) {
++			*(u16 *)ptr = (u16)next;
++		}
++		break;
++
++	case 4: 
++		prev = *(u32 *)ptr;
++		if (prev == old) {
++			*(u32 *)ptr = (u32)next;
++		}
++		break;
++
++	default:
++		__xchg_called_with_bad_pointer();
++		break;
++	}
++	__atomic_lock_release();
++	return prev;
++}
++
++/*
++ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
++ * them available.
++ */
++#define cmpxchg_local(ptr, o, n) \
++	((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))))
++
++#define cmpxchg(ptr, o, n) __cmpxchg((ptr), (o), (n), sizeof(*(ptr)))
++
++#define smp_mb__before_atomic_inc() asm volatile ("" : : : "memory")
++#define smp_mb__after_atomic_inc() asm volatile ("" : : : "memory")
++#define smp_mb__before_atomic_dec() asm volatile ("" : : : "memory")
++#define smp_mb__after_atomic_dec() asm volatile ("" : : : "memory")
++
++#endif /* _ASM_UBICOM32_ATOMIC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/audio_tio.h
+@@ -0,0 +1,124 @@
++/*
++ * arch/ubicom32/include/asm/audio_tio.h
++ *	AudioTIO include file
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef _AUDIO_TIO_H
++#define _AUDIO_TIO_H
++
++#include <asm/devtree.h>
++#include <asm/ubi32-pcm.h>
++
++#define UBI32_AUDIO_INT_FLAG_MORE_SAMPLES 0x00000001
++#define UBI32_AUDIO_INT_FLAG_COMMAND      0x00000002
++
++/*
++ * Commands the Primary OS sends to the audio device
++ */
++enum ubi32_audio_command {
++	UBI32_AUDIO_CMD_NONE,
++	UBI32_AUDIO_CMD_START,
++	UBI32_AUDIO_CMD_STOP,
++	UBI32_AUDIO_CMD_PAUSE,
++	UBI32_AUDIO_CMD_RESUME,
++	UBI32_AUDIO_CMD_MUTE,
++	UBI32_AUDIO_CMD_UNMUTE,
++	UBI32_AUDIO_CMD_SETUP,
++	UBI32_AUDIO_CMD_ENABLE,
++	UBI32_AUDIO_CMD_DISABLE,
++};
++
++/*
++ * Flag bits passed in the registers
++ */
++#define UBI32_CMD_SETUP_FLAG_LE		(1 << 0)	/* Use Little Endian Mode */
++
++/*
++ * Status bits that audio device can set to indicate reason
++ * for interrupting the Primary OS
++ */
++#define UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST (1 << 0) /* Audio device needs samples in DMA0 for playback */
++#define UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST (1 << 1) /* Audio device needs samples in DMA1 for playback */
++
++struct ubi32_audio_dma {
++	/*
++	 * NOTE: The active flag shall only be SET by the producer and CLEARED
++	 * by the consumer, NEVER the other way around.  For playback, the
++	 * Primary OS sets this flag and ipAudioTIO clears it.
++	 *
++	 * The producer shall not modify the ptr or ctr fields when the transfer
++	 * is marked as active, as these are used by the consumer to do the
++	 * transfer.
++	 */
++	volatile uint32_t active; 		/* Nonzero if data in ptr/ctr ready to be transferred */
++	//volatile u32_t active; 		/* Nonzero if data in ptr/ctr ready to be transferred */
++	volatile void *ptr;		/* Pointer to data to be transferred */
++	volatile uint32_t ctr; 	/* Counter: number of data units to transfer */
++	//volatile u32_t ctr; 		/* Counter: number of data units to transfer */
++};
++
++#define AUDIOTIONODE_CAP_BE	(1 << 0)
++#define AUDIOTIONODE_CAP_LE	(1 << 1)
++
++/*
++ * Resource indices used to access IRQs via platform_get_resource
++ */
++#define AUDIOTIO_MEM_RESOURCE		0
++#define AUDIOTIO_TX_IRQ_RESOURCE	0
++#define AUDIOTIO_RX_IRQ_RESOURCE	1
++
++#define AUDIOTIONODE_VERSION	5
++struct audiotionode {
++	struct devtree_node dn;
++	uint32_t version;				/* Version of this node */
++	struct audiotioregs *regs;
++};
++
++#define AUDIOTIOREGS_VERSION	3
++struct audiotioregs {
++	uint32_t version;
++	uint32_t caps;					/* Capabilities of the driver */
++	u32_t *sample_rates;				/* Sample Rates supported by this driver */
++	u32_t n_sample_rates;				/* Number of sample rates supported by this driver */
++	u32_t channel_mask;				/* The channel configs supported by this driver (bit 1 = 1 channel, etc) */
++	volatile uint32_t int_flags;			/* Reason for interrupting audio device */
++	volatile enum ubi32_audio_command command;	/* Command from Primary OS */
++	volatile uint32_t flags;			/* Flag bits for this command */
++	volatile uint32_t channels;			/* Number of channels in stream */
++	volatile uint32_t sample_rate;			/* Sample rate */
++	volatile uint32_t status;			/* Status bits sent from AudioTIO to Primary OS */
++	volatile void *current_read_pos;		/* Position of next sample to be removed from Primary OS sample buffer */
++
++	/*
++	 * These are the transfer requests.  They are used in alternating
++	 * order so that when ipAudioTIO is processing one request, the
++	 * Primary OS can fill in the other one.
++	 *
++	 * NOTE: The active bit shall always be SET by the producer and
++	 * CLEARED by the consumer, NEVER the other way around.
++	 */
++	struct ubi32_audio_dma playback_xfer_requests[2];
++};
++
++extern struct platform_device * __init audio_tio_alloc(const char *driver_name, const char *node_name, int priv_size);
++
++#define audio_tio_priv(pdev) (((struct ubi32pcm_platform_data *)(((struct platform_device *)(pdev))->dev.platform_data))->priv_data)
++#endif
+--- /dev/null
++++ b/arch/ubicom32/include/asm/auxvec.h
+@@ -0,0 +1,32 @@
++/*
++ * arch/ubicom32/include/asm/auxvec.h
++ *   Symbolic values for the entries in the auxiliary table
++ *   put on the initial stack.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_AUXVEC_H
++#define _ASM_UBICOM32_AUXVEC_H
++
++#endif /* _ASM_UBICOM32_AUXVEC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bitops.h
+@@ -0,0 +1,171 @@
++/*
++ * arch/ubicom32/include/asm/bitops.h
++ *   Bit manipulation definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BITOPS_H
++#define _ASM_UBICOM32_BITOPS_H
++
++/*
++ * Copyright 1992, Linus Torvalds.
++ */
++
++#include <linux/compiler.h>
++#include <asm/byteorder.h>	/* swab32 */
++
++#ifdef __KERNEL__
++
++#ifndef _LINUX_BITOPS_H
++#error only <linux/bitops.h> can be included directly
++#endif
++
++#include <asm-generic/bitops/ffs.h>
++#include <asm-generic/bitops/__ffs.h>
++
++#include <asm-generic/bitops/sched.h>
++#include <asm-generic/bitops/ffz.h>
++
++#include <asm/ubicom32-common.h>
++
++static inline void set_bit(int bit, volatile unsigned long *p)
++{
++	unsigned long mask = 1UL << (bit & 31);
++
++	p += bit >> 5;
++
++	__atomic_lock_acquire();
++	*p |= mask;
++	__atomic_lock_release();
++}
++
++static inline void clear_bit(int bit, volatile unsigned long *p)
++{
++	unsigned long mask = 1UL << (bit & 31);
++
++	p += bit >> 5;
++
++	__atomic_lock_acquire();
++	*p &= ~mask;
++	__atomic_lock_release();
++}
++
++/*
++ * clear_bit() doesn't provide any barrier for the compiler.
++ */
++#define smp_mb__before_clear_bit()	barrier()
++#define smp_mb__after_clear_bit()	barrier()
++
++static inline void change_bit(int bit, volatile unsigned long *p)
++{
++	unsigned long mask = 1UL << (bit & 31);
++
++	p += bit >> 5;
++
++	__atomic_lock_acquire();
++	*p ^= mask;
++	__atomic_lock_release();
++}
++
++static inline int test_and_set_bit(int bit, volatile unsigned long *p)
++{
++	unsigned int res;
++	unsigned long mask = 1UL << (bit & 31);
++
++	p += bit >> 5;
++
++	__atomic_lock_acquire();
++	res = *p;
++	*p = res | mask;
++	__atomic_lock_release();
++
++	return res & mask;
++}
++
++static inline int test_and_clear_bit(int bit, volatile unsigned long *p)
++{
++	unsigned int res;
++	unsigned long mask = 1UL << (bit & 31);
++
++	p += bit >> 5;
++
++	__atomic_lock_acquire();
++	res = *p;
++	*p = res & ~mask;
++	__atomic_lock_release();
++
++	return res & mask;
++}
++
++static inline int test_and_change_bit(int bit, volatile unsigned long *p)
++{
++	unsigned int res;
++	unsigned long mask = 1UL << (bit & 31);
++
++	p += bit >> 5;
++
++	__atomic_lock_acquire();
++	res = *p;
++	*p = res ^ mask;
++	__atomic_lock_release();
++
++	return res & mask;
++}
++
++#include <asm-generic/bitops/non-atomic.h>
++
++/*
++ * This routine doesn't need to be atomic.
++ */
++static inline int __constant_test_bit(int nr, const volatile unsigned long *addr)
++{
++	return ((1UL << (nr & 31)) & (((const volatile unsigned int *) addr)[nr >> 5])) != 0;
++}
++
++static inline int __test_bit(int nr, const volatile unsigned long *addr)
++{
++	int 	* a = (int *) addr;
++	int	mask;
++
++	a += nr >> 5;
++	mask = 1 << (nr & 0x1f);
++	return ((mask & *a) != 0);
++}
++
++#define test_bit(nr,addr) (__builtin_constant_p(nr) ?  __constant_test_bit((nr),(addr)) :  __test_bit((nr),(addr)))
++
++#include <asm-generic/bitops/find.h>
++#include <asm-generic/bitops/hweight.h>
++#include <asm-generic/bitops/lock.h>
++
++#include <asm-generic/bitops/ext2-non-atomic.h>
++#include <asm-generic/bitops/ext2-atomic.h>
++#include <asm-generic/bitops/minix.h>
++
++#endif /* __KERNEL__ */
++
++#include <asm-generic/bitops/fls.h>
++#include <asm-generic/bitops/fls64.h>
++
++#endif /* _ASM_UBICOM32_BITOPS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/board.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/board.h
++ *   Board init and revision definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BOARD_H
++#define _ASM_UBICOM32_BOARD_H
++
++extern const char *board_get_revision(void);
++extern void __init board_init(void);
++
++#endif /* _ASM_UBICOM32_BOARD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bootargs.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/bootargs.h
++ *   Kernel command line via the devtree API.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BOOTARGS_H
++#define _ASM_UBICOM32_BOOTARGS_H
++
++extern const char *bootargs_get_cmdline(void);
++extern void __init bootargs_init(void);
++
++#endif /* _ASM_UBICOM32_BOOTARGS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bootinfo.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/bootinfo.h
++ *   Definitions of firmware boot parameters passed to the kernel.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_BOOTINFO_H
++#define _ASM_UBICOM32_BOOTINFO_H
++
++/* Nothing for ubicom32 */
++
++#endif /* _ASM_UBICOM32_BOOTINFO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bug.h
+@@ -0,0 +1,53 @@
++/*
++ * arch/ubicom32/include/asm/bug.h
++ *   Generic bug.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BUG_H
++#define _ASM_UBICOM32_BUG_H
++
++#include <linux/kernel.h>
++#include <asm/thread.h>
++
++#if defined(CONFIG_STOP_ON_BUG)
++/*
++ *  __BUG_ON()
++ *  	Stall all threads to enable debugging.
++ */
++static inline void __BUG_ON(unsigned long c)
++{
++	if (unlikely(c)) {
++		THREAD_STALL;
++	}
++	return;
++}
++
++#define BUG_ON(c) __BUG_ON((unsigned long)(c))
++#define HAVE_ARCH_BUG_ON
++#endif
++
++#include <asm-generic/bug.h>
++
++#endif /* _ASM_UBICOM32_BUG_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bugs.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/bugs.h
++ *   Definition of check_bugs() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1994  Linus Torvalds
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++/*
++ * This is included by init/main.c to check for architecture-dependent bugs.
++ *
++ * Needs:
++ *	void check_bugs(void);
++ */
++
++#ifndef _ASM_UBICOM32_BUGS_H
++#define _ASM_UBICOM32_BUGS_H
++
++static void check_bugs(void)
++{
++}
++
++#endif /* _ASM_UBICOM32_BUGS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/byteorder.h
+@@ -0,0 +1,48 @@
++/*
++ * arch/ubicom32/include/asm/byteorder.h
++ *   Byte order swapping utility routines.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BYTEORDER_H
++#define _ASM_UBICOM32_BYTEORDER_H
++
++#include <linux/types.h>
++
++#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
++#  define __BYTEORDER_HAS_U64__
++#  define __SWAB_64_THRU_32__
++#endif
++
++#if defined(IP7000) || defined(IP7000_REV2)
++
++#define __arch__swab16 __builtin_ubicom32_swapb_2
++#define __arch__swab32 __builtin_ubicom32_swapb_4
++
++#endif /* IP7000 */
++
++#include <linux/byteorder/big_endian.h>
++
++#endif /* _ASM_UBICOM32_BYTEORDER_H */
++
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cachectl.h
+@@ -0,0 +1,39 @@
++/*
++ * arch/ubicom32/include/asm/cachectl.h
++ *   Ubicom32 cache control definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CACHECTL_H
++#define _ASM_UBICOM32_CACHECTL_H
++
++#include <asm/ip5000.h>
++
++/*
++ * mem_cache_control()
++ *	Special cache control operation
++ */
++extern void mem_cache_control(unsigned long cc, unsigned long begin_addr, unsigned long end_addr, unsigned long op);
++
++#endif /* _ASM_UBICOM32_CACHECTL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cacheflush.h
+@@ -0,0 +1,104 @@
++/*
++ * arch/ubicom32/include/asm/cacheflush.h
++ *   Cache flushing definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CACHEFLUSH_H
++#define _ASM_UBICOM32_CACHEFLUSH_H
++
++/*
++ * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com>
++ */
++#include <linux/mm.h>
++#include <asm/cachectl.h>
++#include <asm/ip5000.h>
++
++#define flush_cache_all()			__flush_cache_all()
++#define flush_cache_mm(mm)			do { } while (0)
++#define flush_cache_dup_mm(mm)			do { } while (0)
++#define flush_cache_range(vma, start, end)	__flush_cache_all()
++#define flush_cache_page(vma, vmaddr)		do { } while (0)
++#define flush_dcache_page(page)			do { } while (0)
++#define flush_dcache_mmap_lock(mapping)		do { } while (0)
++#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
++
++#define flush_dcache_range(start, end)					\
++do {									\
++	/* Flush the data cache and invalidate the I cache. */		\
++	local_irq_disable();						\
++	mem_cache_control(DCCR_BASE, start, end, CCR_CTRL_FLUSH_ADDR);	\
++	mem_cache_control(ICCR_BASE, start, end, CCR_CTRL_INV_ADDR);	\
++	local_irq_enable();						\
++} while (0)
++
++#define flush_icache_range(start, end)					\
++do {									\
++	/* Flush the data cache and invalidate the I cache. */		\
++	local_irq_disable();						\
++	mem_cache_control(DCCR_BASE, start, end, CCR_CTRL_FLUSH_ADDR);	\
++	mem_cache_control(ICCR_BASE, start, end, CCR_CTRL_INV_ADDR);	\
++	local_irq_enable();						\
++} while (0)
++
++#define flush_icache_page(vma,pg)		do { } while (0)
++#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
++#define flush_cache_vmap(start, end)		do { } while (0)
++#define flush_cache_vunmap(start, end)		do { } while (0)
++
++#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
++	memcpy(dst, src, len)
++#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
++	memcpy(dst, src, len)
++
++/*
++ * Cache handling for IP5000
++ */
++extern inline void mem_cache_invalidate_all(unsigned long cc)
++{
++	asm volatile (
++	"	bset	"D(CCR_CTRL)"(%0), "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_RESET)"	\n\t"
++	"	nop									\n\t"
++	"	bclr	"D(CCR_CTRL)"(%0), "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_RESET)"	\n\t"
++	"	pipe_flush 0								\n\t"
++		:
++		: "a"(cc)
++		: "cc"
++	);
++}
++
++static inline void __flush_cache_all(void)
++{
++	/*
++	 * Flush Icache
++	 */
++	mem_cache_invalidate_all(ICCR_BASE);
++
++	/*
++	 * Flush Dcache
++	 */
++	mem_cache_invalidate_all(DCCR_BASE);
++}
++
++#endif /* _ASM_UBICOM32_CACHEFLUSH_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cache.h
+@@ -0,0 +1,40 @@
++/*
++ * arch/ubicom32/include/asm/cache.h
++ *   Cache line definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CACHE_H
++#define _ASM_UBICOM32_CACHE_H
++
++/*
++ * bytes per L1 cache line
++ */
++#define L1_CACHE_SHIFT  5
++#define L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
++
++#define __cacheline_aligned
++#define ____cacheline_aligned
++
++#endif /* _ASM_UBICOM32_CACHE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/checksum.h
+@@ -0,0 +1,149 @@
++/*
++ * arch/ubicom32/include/asm/checksum.h
++ *   Checksum utilities for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CHECKSUM_H
++#define _ASM_UBICOM32_CHECKSUM_H
++
++#include <linux/in6.h>
++
++/*
++ * computes the checksum of a memory block at buff, length len,
++ * and adds in "sum" (32-bit)
++ *
++ * returns a 32-bit number suitable for feeding into itself
++ * or csum_tcpudp_magic
++ *
++ * this function must be called with even lengths, except
++ * for the last fragment, which may be odd
++ *
++ * it's best to have buff aligned on a 32-bit boundary
++ */
++__wsum csum_partial(const void *buff, int len, __wsum sum);
++
++/*
++ * the same as csum_partial, but copies from src while it
++ * checksums
++ *
++ * here even more important to align src and dst on a 32-bit (or even
++ * better 64-bit) boundary
++ */
++
++__wsum csum_partial_copy_nocheck(const void *src, void *dst,
++	int len, __wsum sum);
++
++
++/*
++ * the same as csum_partial_copy, but copies from user space.
++ *
++ * here even more important to align src and dst on a 32-bit (or even
++ * better 64-bit) boundary
++ */
++
++extern __wsum csum_partial_copy_from_user(const void __user *src,
++	void *dst, int len, __wsum sum, int *csum_err);
++
++__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
++
++/*
++ *	Fold a partial checksum
++ */
++
++static inline __sum16 csum_fold(__wsum sum)
++{
++	asm volatile (
++	"	lsr.4	d15, %0, #16	\n\t"
++	"	bfextu	%0, %0, #16	\n\t"
++	"	add.4	%0, d15, %0	\n\t"
++	"	lsr.4	d15, %0, #16	\n\t"
++	"	bfextu	%0, %0, #16	\n\t"
++	"	add.4	%0, d15, %0	\n\t"
++		: "=&d" (sum)
++		: "0"(sum)
++		: "d15"
++	);
++	return (__force __sum16)~sum;
++}
++
++
++/*
++ * computes the checksum of the TCP/UDP pseudo-header
++ * returns a 16-bit checksum, already complemented
++ */
++
++static inline __wsum
++csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
++		  unsigned short proto, __wsum sum)
++{
++	asm volatile (
++	"	add.4	%0, %2, %0	\n\t"
++	"	addc	%0, %3, %0	\n\t"
++	"	addc	%0, %4, %0	\n\t"
++	"	addc	%0, %5, %0	\n\t"
++	"	addc	%0, #0, %0	\n\t"
++		: "=&d" (sum)
++		: "0"(sum), "r" (saddr), "r" (daddr), "r" (len), "r"(proto)
++	);
++	return sum;
++}
++
++static inline __sum16
++csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
++		  unsigned short proto, __wsum sum)
++{
++	return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
++}
++
++/*
++ * this routine is used for miscellaneous IP-like checksums, mainly
++ * in icmp.c
++ */
++extern __sum16 ip_compute_csum(const void *buff, int len);
++
++#define _HAVE_ARCH_IPV6_CSUM
++
++static __inline__ __sum16
++csum_ipv6_magic(const struct in6_addr *saddr, const struct in6_addr *daddr,
++		__u32 len, unsigned short proto, __wsum sum)
++{
++	asm volatile (
++	"	add.4	%0, 0(%2), %0	\n\t"
++	"	addc	%0, 4(%2), %0	\n\t"
++	"	addc	%0, 8(%2), %0	\n\t"
++	"	addc	%0, 12(%2), %0	\n\t"
++	"	addc	%0, 0(%3), %0	\n\t"
++	"	addc	%0, 4(%3), %0	\n\t"
++	"	addc	%0, 8(%3), %0	\n\t"
++	"	addc	%0, 12(%3), %0	\n\t"
++	"	addc	%0, %4, %0	\n\t"
++	"	addc	%0, #0, %0	\n\t"
++		: "=&d" (sum)
++		: "0" (sum), "a" (saddr), "a" (daddr), "d" (len + proto)
++	);
++	return csum_fold(sum);
++}
++
++#endif /* _ASM_UBICOM32_CHECKSUM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cpu.h
+@@ -0,0 +1,45 @@
++/*
++ * arch/ubicom32/include/asm/cpu.h
++ *   CPU definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004-2005 ARM Ltd.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CPU_H
++#define _ASM_UBICOM32_CPU_H
++
++#include <linux/percpu.h>
++
++struct cpuinfo_ubicom32 {
++	unsigned long tid;			/* Hardware thread number */
++
++#ifdef CONFIG_SMP
++	volatile unsigned long ipi_pending;	/* Bit map of operations to execute */
++	unsigned long ipi_count;		/* Number of IPI(s) taken on this cpu */
++#endif
++};
++
++DECLARE_PER_CPU(struct cpuinfo_ubicom32, cpu_data);
++
++#endif /* _ASM_UBICOM32_CPU_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cputime.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/cputime.h
++ *   Generic cputime.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CPUTIME_H
++#define _ASM_UBICOM32_CPUTIME_H
++
++#include <asm-generic/cputime.h>
++
++#endif /* _ASM_UBICOM32_CPUTIME_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/current.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/current.h
++ *   Definition of get_current() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (C) Copyright 2000, Lineo, David McCullough <davidm@uclinux.org>
++ * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CURRENT_H
++#define _ASM_UBICOM32_CURRENT_H
++
++#include <linux/thread_info.h>
++
++struct task_struct;
++
++static inline struct task_struct *get_current(void)
++{
++	return(current_thread_info()->task);
++}
++
++#define	current	get_current()
++
++#endif /* _ASM_UBICOM32_CURRENT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/delay.h
+@@ -0,0 +1,75 @@
++/*
++ * arch/ubicom32/include/asm/delay.h
++ *   Definition of delay routines for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DELAY_H
++#define _ASM_UBICOM32_DELAY_H
++
++#include <asm/param.h>
++#include <asm/ip5000.h>
++
++static inline void __delay(unsigned long loops)
++{
++	if (loops == 0) {
++		return;
++	}
++
++	asm volatile (
++	"1:	add.4	%0, #-1, %0		\n\t"
++	"	jmpne.t	1b			\n\t"
++	: "+d" (loops)
++	);
++}
++
++/*
++ *	Ubicom32 processor uses fixed 12MHz external OSC.
++ *	So we use that as reference to count 12 cycles/us
++ */
++
++extern unsigned long loops_per_jiffy;
++
++static inline void _udelay(unsigned long usecs)
++{
++#if defined(CONFIG_UBICOM32_V4) || defined(CONFIG_UBICOM32_V3)
++	asm volatile (
++		"	add.4		d15, 0(%0), %1			\n\t"
++		"	sub.4		#0, 0(%0), d15			\n\t"
++		"	jmpmi.w.f	.-4				\n\t"
++		:
++		: "a"(TIMER_BASE + TIMER_MPTVAL), "d"(usecs * (12000000/1000000))
++		: "d15"
++	);
++#else
++	BUG();
++#endif
++}
++
++/*
++ *	Moved the udelay() function into library code, no longer inlined.
++ */
++extern void udelay(unsigned long usecs);
++
++#endif /* _ASM_UBICOM32_DELAY_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/device.h
+@@ -0,0 +1,35 @@
++/*
++ * arch/ubicom32/include/asm/device.h
++ *   Generic device.h for Ubicom32 architecture.
++ *
++ *   Used for arch specific extensions to struct device
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DEVICE_H
++#define _ASM_UBICOM32_DEVICE_H
++
++#include <asm-generic/device.h>
++
++#endif /* _ASM_UBICOM32_DEVICE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/devtree.h
+@@ -0,0 +1,52 @@
++/*
++ * arch/ubicom32/include/asm/devtree.h
++ *   Device Tree Header File (Shared between ultra and the Host OS)
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_DEVTREE_H
++#define _ASM_UBICOM32_DEVTREE_H
++
++#define DEVTREE_MAX_NAME 32
++#define DEVTREE_IRQ_NONE 0xff
++#define DEVTREE_IRQ_DONTCARE 0xff
++#define DEVTREE_NODE_MAGIC 0x10203040
++
++struct devtree_node {
++	struct devtree_node *next;
++	unsigned char sendirq;
++	unsigned char recvirq;
++	char name[DEVTREE_MAX_NAME];
++	unsigned int magic;
++};
++
++extern struct devtree_node *devtree;
++extern struct devtree_node *devtree_find_by_irq(uint8_t sendirq, uint8_t recvirq);
++extern struct devtree_node *devtree_find_node(const char *str);
++extern struct devtree_node *devtree_find_next(struct devtree_node **cur);
++extern int devtree_irq(struct devtree_node *dn, unsigned char *sendirq, unsigned char *recvirq);
++extern void devtree_print(void);
++
++#endif /* _ASM_UBICOM32_DEVTREE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/div64.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/div64.h
++ *   Generic div64.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DIV64_H
++#define _ASM_UBICOM32_DIV64_H
++
++#include <asm-generic/div64.h>
++
++#endif /* _ASM_UBICOM32_DIV64_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/dma.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/dma.h
++ *   DMA definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DMA_H
++#define _ASM_UBICOM32_DMA_H
++
++/* Nothing so far */
++#define MAX_DMA_ADDRESS 0x00	/* This is quite suspicious */
++
++#endif /* _ASM_UBICOM32_DMA_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/dma-mapping.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/dma-mapping.h
++ *   Generic dma-mapping.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DMA_MAPPING_H
++#define _ASM_UBICOM32_DMA_MAPPING_H
++
++#include <linux/scatterlist.h>
++#include <asm-generic/dma-mapping.h>
++
++#endif /* _ASM_UBICOM32_DMA_MAPPING_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/elf.h
+@@ -0,0 +1,167 @@
++/*
++ * arch/ubicom32/include/asm/elf.h
++ *   Definitions for elf executable format for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ELF_H
++#define _ASM_UBICOM32_ELF_H
++
++/*
++ * ELF register definitions..
++ */
++
++#include <asm/ptrace.h>
++#include <asm/user.h>
++
++/*
++ * Processor specific flags for the ELF header e_flags field.
++ */
++#define EF_UBICOM32_V3		0x00000001	/* -fmarch=ubicom32v3 */
++#define EF_UBICOM32_V4		0x00000002	/* -fmarch=ubicom32v4 */
++#define EF_UBICOM32_PIC		0x80000000	/* -fpic */
++#define EF_UBICOM32_FDPIC	0x40000000	/* -mfdpic */
++
++/*
++ * Ubicom32 ELF relocation types
++ */
++#define R_UBICOM32_NONE			0
++#define R_UBICOM32_16			1
++#define R_UBICOM32_32			2
++#define R_UBICOM32_LO16			3
++#define R_UBICOM32_HI16			4
++#define R_UBICOM32_21_PCREL		5
++#define R_UBICOM32_24_PCREL		6
++#define R_UBICOM32_HI24			7
++#define R_UBICOM32_LO7_S		8
++#define R_UBICOM32_LO7_2_S		9
++#define R_UBICOM32_LO7_4_S		10
++#define R_UBICOM32_LO7_D		11
++#define R_UBICOM32_LO7_2_D		12
++#define R_UBICOM32_LO7_4_D		13
++#define R_UBICOM32_32_HARVARD		14
++#define R_UBICOM32_LO7_CALLI		15
++#define R_UBICOM32_LO16_CALLI		16
++#define R_UBICOM32_GOT_HI24		17
++#define R_UBICOM32_GOT_LO7_S		18
++#define R_UBICOM32_GOT_LO7_2_S		19
++#define R_UBICOM32_GOT_LO7_4_S		20
++#define R_UBICOM32_GOT_LO7_D		21
++#define R_UBICOM32_GOT_LO7_2_D		22
++#define R_UBICOM32_GOT_LO7_4_D		23
++#define R_UBICOM32_FUNCDESC_GOT_HI24    24
++#define R_UBICOM32_FUNCDESC_GOT_LO7_S   25
++#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26
++#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27
++#define R_UBICOM32_FUNCDESC_GOT_LO7_D   28
++#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29
++#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30
++#define R_UBICOM32_GOT_LO7_CALLI        31
++#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32
++#define R_UBICOM32_FUNCDESC_VALUE       33
++#define R_UBICOM32_FUNCDESC             34
++#define R_UBICOM32_GOTOFFSET_LO         35
++#define R_UBICOM32_GOTOFFSET_HI         36
++#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37
++#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38
++#define R_UBICOM32_GNU_VTINHERIT        200
++#define R_UBICOM32_GNU_VTENTRY          201
++
++typedef unsigned long elf_greg_t;
++
++#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
++typedef elf_greg_t elf_gregset_t[ELF_NGREG];
++
++typedef struct user_ubicom32fp_struct elf_fpregset_t;
++
++/*
++ * This is used to ensure we don't load something for the wrong architecture.
++ */
++#define elf_check_arch(x) ((x)->e_machine == EM_UBICOM32)
++
++#define elf_check_fdpic(x) ((x)->e_flags & EF_UBICOM32_FDPIC)
++
++#define elf_check_const_displacement(x) ((x)->e_flags & EF_UBICOM32_PIC)
++
++/*
++ * These are used to set parameters in the core dumps.
++ */
++#define ELF_CLASS	ELFCLASS32
++#define ELF_DATA	ELFDATA2MSB
++#define ELF_ARCH	EM_UBICOM32
++
++/* For SVR4/m68k the function pointer to be registered with `atexit' is
++   passed in %a1.  Although my copy of the ABI has no such statement, it
++   is actually used on ASV.  */
++#define ELF_PLAT_INIT(_r, load_addr)	_r->a1 = 0
++
++#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr,	\
++			    _dynamic_addr)				\
++	do {								\
++		_regs->dn[1]	= _exec_map_addr;			\
++		_regs->dn[2]	= _interp_map_addr;			\
++		_regs->dn[3]	= _dynamic_addr;			\
++		_regs->an[1]	= 0; /* dl_fini will be set by ldso */	\
++	} while (0)
++
++#define USE_ELF_CORE_DUMP
++#define ELF_EXEC_PAGESIZE	4096
++
++#ifdef __KERNEL__
++#ifdef CONFIG_UBICOM32_V4
++#define ELF_FDPIC_CORE_EFLAGS	(EF_UBICOM32_FDPIC | EF_UBICOM32_V4)
++#elif defined CONFIG_UBICOM32_V3
++#define ELF_FDPIC_CORE_EFLAGS	(EF_UBICOM32_FDPIC | EF_UBICOM32_V3)
++#else
++#error Unknown/Unsupported ubicom32 architecture.
++#endif
++#endif
++
++/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
++   use of this is to invoke "./ld.so someprog" to test out a new version of
++   the loader.  We need to make sure that it is out of the way of the program
++   that it will "exec", and that there is sufficient room for the brk.  */
++
++#define ELF_ET_DYN_BASE         0xD0000000UL
++
++/*
++ * For Ubicom32, the elf_gregset_t and struct pt_regs are the same size
++ * data structure so a copy is performed instead of providing the
++ * ELF_CORE_COPY_REGS macro.
++ */
++
++/* This yields a mask that user programs can use to figure out what
++   instruction set this cpu supports.  */
++
++#define ELF_HWCAP	(0)
++
++/* This yields a string that ld.so will use to load implementation
++   specific libraries for optimization.  This is more specific in
++   intent than poking at uname or /proc/cpuinfo.  */
++
++#define ELF_PLATFORM  (NULL)
++
++#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
++
++#endif /* _ASM_UBICOM32_ELF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/elf.h~
+@@ -0,0 +1,165 @@
++/*
++ * arch/ubicom32/include/asm/elf.h
++ *   Definitions for elf executable format for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ELF_H
++#define _ASM_UBICOM32_ELF_H
++
++/*
++ * ELF register definitions..
++ */
++
++#include <asm/ptrace.h>
++#include <asm/user.h>
++
++/*
++ * Processor specific flags for the ELF header e_flags field.
++ */
++#define EF_UBICOM32_V3		0x00000001	/* -fmarch=ubicom32v3 */
++#define EF_UBICOM32_V4		0x00000002	/* -fmarch=ubicom32v4 */
++#define EF_UBICOM32_PIC		0x80000000	/* -fpic */
++#define EF_UBICOM32_FDPIC	0x40000000	/* -mfdpic */
++
++/*
++ * Ubicom32 ELF relocation types
++ */
++#define R_UBICOM32_NONE			0
++#define R_UBICOM32_16			1
++#define R_UBICOM32_32			2
++#define R_UBICOM32_LO16			3
++#define R_UBICOM32_HI16			4
++#define R_UBICOM32_21_PCREL		5
++#define R_UBICOM32_24_PCREL		6
++#define R_UBICOM32_HI24			7
++#define R_UBICOM32_LO7_S		8
++#define R_UBICOM32_LO7_2_S		9
++#define R_UBICOM32_LO7_4_S		10
++#define R_UBICOM32_LO7_D		11
++#define R_UBICOM32_LO7_2_D		12
++#define R_UBICOM32_LO7_4_D		13
++#define R_UBICOM32_32_HARVARD		14
++#define R_UBICOM32_LO7_CALLI		15
++#define R_UBICOM32_LO16_CALLI		16
++#define R_UBICOM32_GOT_HI24		17
++#define R_UBICOM32_GOT_LO7_S		18
++#define R_UBICOM32_GOT_LO7_2_S		19
++#define R_UBICOM32_GOT_LO7_4_S		20
++#define R_UBICOM32_GOT_LO7_D		21
++#define R_UBICOM32_GOT_LO7_2_D		22
++#define R_UBICOM32_GOT_LO7_4_D		23
++#define R_UBICOM32_FUNCDESC_GOT_HI24    24
++#define R_UBICOM32_FUNCDESC_GOT_LO7_S   25
++#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26
++#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27
++#define R_UBICOM32_FUNCDESC_GOT_LO7_D   28
++#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29
++#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30
++#define R_UBICOM32_GOT_LO7_CALLI        31
++#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32
++#define R_UBICOM32_FUNCDESC_VALUE       33
++#define R_UBICOM32_FUNCDESC             34
++#define R_UBICOM32_GOTOFFSET_LO         35
++#define R_UBICOM32_GOTOFFSET_HI         36
++#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37
++#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38
++#define R_UBICOM32_GNU_VTINHERIT        200
++#define R_UBICOM32_GNU_VTENTRY          201
++
++typedef unsigned long elf_greg_t;
++
++#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
++typedef elf_greg_t elf_gregset_t[ELF_NGREG];
++
++typedef struct user_ubicom32fp_struct elf_fpregset_t;
++
++/*
++ * This is used to ensure we don't load something for the wrong architecture.
++ */
++#define elf_check_arch(x) ((x)->e_machine == EM_UBICOM32)
++
++#define elf_check_fdpic(x) ((x)->e_flags & EF_UBICOM32_FDPIC)
++
++#define elf_check_const_displacement(x) ((x)->e_flags & EF_UBICOM32_PIC)
++
++/*
++ * These are used to set parameters in the core dumps.
++ */
++#define ELF_CLASS	ELFCLASS32
++#define ELF_DATA	ELFDATA2MSB
++#define ELF_ARCH	EM_UBICOM32
++
++/* For SVR4/m68k the function pointer to be registered with `atexit' is
++   passed in %a1.  Although my copy of the ABI has no such statement, it
++   is actually used on ASV.  */
++#define ELF_PLAT_INIT(_r, load_addr)	_r->a1 = 0
++
++#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr,	\
++			    _dynamic_addr)				\
++	do {								\
++		_regs->dn[1]	= _exec_map_addr;			\
++		_regs->dn[2]	= _interp_map_addr;			\
++		_regs->dn[3]	= _dynamic_addr;			\
++		_regs->an[1]	= 0; /* dl_fini will be set by ldso */	\
++	} while (0)
++
++#define USE_ELF_CORE_DUMP
++#define ELF_EXEC_PAGESIZE	4096
++
++#ifdef CONFIG_UBICOM32_V4
++#define ELF_FDPIC_CORE_EFLAGS	(EF_UBICOM32_FDPIC | EF_UBICOM32_V4)
++#elif defined CONFIG_UBICOM32_V3
++#define ELF_FDPIC_CORE_EFLAGS	(EF_UBICOM32_FDPIC | EF_UBICOM32_V3)
++#else
++#error Unknown/Unsupported ubicom32 architecture.
++#endif
++
++/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
++   use of this is to invoke "./ld.so someprog" to test out a new version of
++   the loader.  We need to make sure that it is out of the way of the program
++   that it will "exec", and that there is sufficient room for the brk.  */
++
++#define ELF_ET_DYN_BASE         0xD0000000UL
++
++/*
++ * For Ubicom32, the elf_gregset_t and struct pt_regs are the same size
++ * data structure so a copy is performed instead of providing the
++ * ELF_CORE_COPY_REGS macro.
++ */
++
++/* This yields a mask that user programs can use to figure out what
++   instruction set this cpu supports.  */
++
++#define ELF_HWCAP	(0)
++
++/* This yields a string that ld.so will use to load implementation
++   specific libraries for optimization.  This is more specific in
++   intent than poking at uname or /proc/cpuinfo.  */
++
++#define ELF_PLATFORM  (NULL)
++
++#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
++
++#endif /* _ASM_UBICOM32_ELF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/emergency-restart.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/emergency-restart.h
++ *   Generic emergency-restart.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_EMERGENCY_RESTART_H
++#define _ASM_UBICOM32_EMERGENCY_RESTART_H
++
++#include <asm-generic/emergency-restart.h>
++
++#endif /* _ASM_UBICOM32_EMERGENCY_RESTART_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/entry.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/entry.h
++ *   Entry register/stack definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ENTRY_H
++#define _ASM_UBICOM32_ENTRY_H
++
++#include <asm/setup.h>
++#include <asm/page.h>
++
++#endif /* _ASM_UBICOM32_ENTRY_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/errno.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/errno.h
++ *   Generic errno.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ERRNO_H
++#define _ASM_UBICOM32_ERRNO_H
++
++#include <asm-generic/errno.h>
++
++#endif /* _ASM_UBICOM32_ERRNO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/fb.h
+@@ -0,0 +1,39 @@
++/*
++ * arch/ubicom32/include/asm/fb.h
++ *   Definition of fb_is_primary_device() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_FB_H
++#define _ASM_UBICOM32_FB_H
++#include <linux/fb.h>
++
++#define fb_pgprotect(...) do {} while (0)
++
++static inline int fb_is_primary_device(struct fb_info *info)
++{
++	return 0;
++}
++
++#endif /* _ASM_UBICOM32_FB_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/fcntl.h
+@@ -0,0 +1,38 @@
++/*
++ * arch/ubicom32/include/asm/fcntl.h
++ *   File control bit definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_FCNTL_H
++#define _ASM_UBICOM32_FCNTL_H
++
++#define O_DIRECTORY	040000	/* must be a directory */
++#define O_NOFOLLOW	0100000	/* don't follow links */
++#define O_DIRECT	0200000	/* direct disk access hint - currently ignored */
++#define O_LARGEFILE	0400000
++
++#include <asm-generic/fcntl.h>
++
++#endif /* _ASM_UBICOM32_FCNTL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/flat.h
+@@ -0,0 +1,73 @@
++/*
++ * arch/ubicom32/include/asm/flat.h
++ *   Definitions to support flat-format executables.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_FLAT_H
++#define _ASM_UBICOM32_FLAT_H
++
++#define ARCH_FLAT_ALIGN 0x80
++#define ARCH_FLAT_ALIGN_TEXT 1
++
++#define  R_UBICOM32_32		2
++#define  R_UBICOM32_HI24	7
++#define  R_UBICOM32_LO7_S	8
++#define  R_UBICOM32_LO7_2_S	9
++#define  R_UBICOM32_LO7_4_S	10
++#define  R_UBICOM32_LO7_D	11
++#define  R_UBICOM32_LO7_2_D	12
++#define  R_UBICOM32_LO7_4_D	13
++#define  R_UBICOM32_LO7_CALLI	15
++#define  R_UBICOM32_LO16_CALLI	16
++
++extern void ubicom32_flat_put_addr_at_rp(unsigned long *rp, u32_t val, u32_t rval, unsigned long  *p);
++extern unsigned long ubicom32_flat_get_addr_from_rp(unsigned long *rp, u32_t relval, u32_t flags, unsigned long *p);
++
++#define	flat_stack_align(sp)			/* nothing needed */
++#define	flat_argvp_envp_on_stack()		1
++#define	flat_old_ram_flag(flags)		(flags)
++#define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
++#define	flat_get_addr_from_rp(rp, relval, flags, p)	(ubicom32_flat_get_addr_from_rp(rp, relval,flags, p))
++#define	flat_put_addr_at_rp(rp, val, relval)	do {ubicom32_flat_put_addr_at_rp(rp, val, relval, &persistent);} while(0)
++#define	flat_get_relocate_addr(rel)		((persistent) ? (persistent & 0x07ffffff) : (rel & 0x07ffffff))
++
++static inline int flat_set_persistent(unsigned int relval, unsigned long *p)
++{
++	if (*p) {
++		return 0;
++	} else {
++		if ((relval >> 27) != R_UBICOM32_32) {
++			/*
++			 * Something other than UBICOM32_32. The next entry has the relocation.
++			 */
++			*p = relval;
++			return 1;
++		}
++	}
++	return 0;
++}
++
++#endif /* _ASM_UBICOM32_FLAT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/fpu.h
+@@ -0,0 +1,37 @@
++/*
++ * arch/ubicom32/include/asm/fpu.h
++ *   Floating point state definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_FPU_H
++#define _ASM_UBICOM32_FPU_H
++
++/*
++ * MAX floating point unit state size (FSAVE/FRESTORE)
++ */
++/* No FP unit present then... */
++#define FPSTATESIZE (2) /* dummy size */
++
++#endif /* _ASM_UBICOM32_FPU_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/futex.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/futex.h
++ *   Generic futex.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_FUTEX_H
++#define _ASM_UBICOM32_FUTEX_H
++
++#include <asm-generic/futex.h>
++
++#endif /* _ASM_UBICOM32_FUTEX_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/.gitignore
+@@ -0,0 +1 @@
++/ocm_size.h
+--- /dev/null
++++ b/arch/ubicom32/include/asm/gpio.h
+@@ -0,0 +1,451 @@
++/*
++ * arch/ubicom32/include/asm/gpio.h
++ *   Definitions for GPIO operations on Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_GPIO_H
++#define _ASM_UBICOM32_GPIO_H
++
++#include <linux/compiler.h>
++#include <asm/irq.h>
++
++#include <asm/ip5000.h>
++
++#define ARCH_NR_GPIOS	         512
++#define MAX_UBICOM_ONCHIP_GPIO   (9 * 32)
++
++/*
++ * Macros for manipulating GPIO numbers
++ */
++#define gpio_bit(gn)			(1 << (gn & 0x1f))
++#define gpio_bank(gn)			(gn >> 5)
++
++#define gpio_pin_index(gn)		(gn & 0x1f)
++#define gpio_port_index(gn)		(gn >> 5)
++
++#define GPIO_RA_0    ((32 * 0) + 0)
++#define GPIO_RA_1    ((32 * 0) + 1)
++#define GPIO_RA_2    ((32 * 0) + 2)
++#define GPIO_RA_3    ((32 * 0) + 3)
++#define GPIO_RA_4    ((32 * 0) + 4)
++#define GPIO_RA_5    ((32 * 0) + 5)
++#define GPIO_RA_6    ((32 * 0) + 6)
++#define GPIO_RA_7    ((32 * 0) + 7)
++
++#define GPIO_RB_0    ((32 * 1) + 0)
++#define GPIO_RB_1    ((32 * 1) + 1)
++#define GPIO_RB_2    ((32 * 1) + 2)
++#define GPIO_RB_3    ((32 * 1) + 3)
++#define GPIO_RB_4    ((32 * 1) + 4)
++#define GPIO_RB_5    ((32 * 1) + 5)
++#define GPIO_RB_6    ((32 * 1) + 6)
++#define GPIO_RB_7    ((32 * 1) + 7)
++#define GPIO_RB_8    ((32 * 1) + 8)
++#define GPIO_RB_9    ((32 * 1) + 9)
++#define GPIO_RB_10   ((32 * 1) + 10)
++#define GPIO_RB_11   ((32 * 1) + 11)
++#define GPIO_RB_12   ((32 * 1) + 12)
++#define GPIO_RB_13   ((32 * 1) + 13)
++#define GPIO_RB_14   ((32 * 1) + 14)
++#define GPIO_RB_15   ((32 * 1) + 15)
++#define GPIO_RB_16   ((32 * 1) + 16)
++#define GPIO_RB_17   ((32 * 1) + 17)
++#define GPIO_RB_18   ((32 * 1) + 18)
++#define GPIO_RB_19   ((32 * 1) + 19)
++
++#define GPIO_RC_0    ((32 * 2) + 0)
++#define GPIO_RC_1    ((32 * 2) + 1)
++#define GPIO_RC_2    ((32 * 2) + 2)
++#define GPIO_RC_3    ((32 * 2) + 3)
++#define GPIO_RC_4    ((32 * 2) + 4)
++#define GPIO_RC_5    ((32 * 2) + 5)
++#define GPIO_RC_6    ((32 * 2) + 6)
++#define GPIO_RC_7    ((32 * 2) + 7)
++#define GPIO_RC_8    ((32 * 2) + 8)
++#define GPIO_RC_9    ((32 * 2) + 9)
++#define GPIO_RC_10   ((32 * 2) + 10)
++#define GPIO_RC_11   ((32 * 2) + 11)
++#define GPIO_RC_12   ((32 * 2) + 12)
++#define GPIO_RC_13   ((32 * 2) + 13)
++#define GPIO_RC_14   ((32 * 2) + 14)
++#define GPIO_RC_15   ((32 * 2) + 15)
++#define GPIO_RC_16   ((32 * 2) + 16)
++#define GPIO_RC_17   ((32 * 2) + 17)
++#define GPIO_RC_18   ((32 * 2) + 18)
++#define GPIO_RC_19   ((32 * 2) + 19)
++#define GPIO_RC_20   ((32 * 2) + 20)
++#define GPIO_RC_21   ((32 * 2) + 21)
++#define GPIO_RC_22   ((32 * 2) + 22)
++#define GPIO_RC_23   ((32 * 2) + 23)
++#define GPIO_RC_24   ((32 * 2) + 24)
++#define GPIO_RC_25   ((32 * 2) + 25)
++#define GPIO_RC_26   ((32 * 2) + 26)
++#define GPIO_RC_27   ((32 * 2) + 27)
++#define GPIO_RC_28   ((32 * 2) + 28)
++#define GPIO_RC_29   ((32 * 2) + 29)
++#define GPIO_RC_30   ((32 * 2) + 30)
++#define GPIO_RC_31   ((32 * 2) + 31)
++
++#define GPIO_RD_0    ((32 * 3) + 0)
++#define GPIO_RD_1    ((32 * 3) + 1)
++#define GPIO_RD_2    ((32 * 3) + 2)
++#define GPIO_RD_3    ((32 * 3) + 3)
++#define GPIO_RD_4    ((32 * 3) + 4)
++#define GPIO_RD_5    ((32 * 3) + 5)
++#define GPIO_RD_6    ((32 * 3) + 6)
++#define GPIO_RD_7    ((32 * 3) + 7)
++#define GPIO_RD_8    ((32 * 3) + 8)
++#define GPIO_RD_9    ((32 * 3) + 9)
++#define GPIO_RD_10   ((32 * 3) + 10)
++#define GPIO_RD_11   ((32 * 3) + 11)
++
++#define GPIO_RE_0    ((32 * 4) + 0)
++#define GPIO_RE_1    ((32 * 4) + 1)
++#define GPIO_RE_2    ((32 * 4) + 2)
++#define GPIO_RE_3    ((32 * 4) + 3)
++#define GPIO_RE_4    ((32 * 4) + 4)
++#define GPIO_RE_5    ((32 * 4) + 5)
++#define GPIO_RE_6    ((32 * 4) + 6)
++#define GPIO_RE_7    ((32 * 4) + 7)
++
++#define GPIO_RF_0    ((32 * 5) + 0)
++#define GPIO_RF_1    ((32 * 5) + 1)
++#define GPIO_RF_2    ((32 * 5) + 2)
++#define GPIO_RF_3    ((32 * 5) + 3)
++#define GPIO_RF_4    ((32 * 5) + 4)
++#define GPIO_RF_5    ((32 * 5) + 5)
++#define GPIO_RF_6    ((32 * 5) + 6)
++#define GPIO_RF_7    ((32 * 5) + 7)
++#define GPIO_RF_8    ((32 * 5) + 8)
++#define GPIO_RF_9    ((32 * 5) + 9)
++#define GPIO_RF_10   ((32 * 5) + 10)
++#define GPIO_RF_11   ((32 * 5) + 11)
++#define GPIO_RF_12   ((32 * 5) + 12)
++#define GPIO_RF_13   ((32 * 5) + 13)
++#define GPIO_RF_14   ((32 * 5) + 14)
++#define GPIO_RF_15   ((32 * 5) + 15)
++
++#define GPIO_RG_0    ((32 * 6) + 0)
++#define GPIO_RG_1    ((32 * 6) + 1)
++#define GPIO_RG_2    ((32 * 6) + 2)
++#define GPIO_RG_3    ((32 * 6) + 3)
++#define GPIO_RG_4    ((32 * 6) + 4)
++#define GPIO_RG_5    ((32 * 6) + 5)
++#define GPIO_RG_6    ((32 * 6) + 6)
++#define GPIO_RG_7    ((32 * 6) + 7)
++#define GPIO_RG_8    ((32 * 6) + 8)
++#define GPIO_RG_9    ((32 * 6) + 9)
++#define GPIO_RG_10   ((32 * 6) + 10)
++#define GPIO_RG_11   ((32 * 6) + 11)
++#define GPIO_RG_12   ((32 * 6) + 12)
++#define GPIO_RG_13   ((32 * 6) + 13)
++#define GPIO_RG_14   ((32 * 6) + 14)
++#define GPIO_RG_15   ((32 * 6) + 15)
++#define GPIO_RG_16   ((32 * 6) + 16)
++#define GPIO_RG_17   ((32 * 6) + 17)
++#define GPIO_RG_18   ((32 * 6) + 18)
++#define GPIO_RG_19   ((32 * 6) + 19)
++#define GPIO_RG_20   ((32 * 6) + 20)
++#define GPIO_RG_21   ((32 * 6) + 21)
++#define GPIO_RG_22   ((32 * 6) + 22)
++#define GPIO_RG_23   ((32 * 6) + 23)
++#define GPIO_RG_24   ((32 * 6) + 24)
++#define GPIO_RG_25   ((32 * 6) + 25)
++#define GPIO_RG_26   ((32 * 6) + 26)
++#define GPIO_RG_27   ((32 * 6) + 27)
++#define GPIO_RG_28   ((32 * 6) + 28)
++#define GPIO_RG_29   ((32 * 6) + 29)
++#define GPIO_RG_30   ((32 * 6) + 30)
++#define GPIO_RG_31   ((32 * 6) + 31)
++
++#define GPIO_RH_0    ((32 * 7) + 0)
++#define GPIO_RH_1    ((32 * 7) + 1)
++#define GPIO_RH_2    ((32 * 7) + 2)
++#define GPIO_RH_3    ((32 * 7) + 3)
++#define GPIO_RH_4    ((32 * 7) + 4)
++#define GPIO_RH_5    ((32 * 7) + 5)
++#define GPIO_RH_6    ((32 * 7) + 6)
++#define GPIO_RH_7    ((32 * 7) + 7)
++#define GPIO_RH_8    ((32 * 7) + 8)
++#define GPIO_RH_9    ((32 * 7) + 9)
++
++#define GPIO_RI_0    ((32 * 8) + 0)
++#define GPIO_RI_1    ((32 * 8) + 1)
++#define GPIO_RI_2    ((32 * 8) + 2)
++#define GPIO_RI_3    ((32 * 8) + 3)
++#define GPIO_RI_4    ((32 * 8) + 4)
++#define GPIO_RI_5    ((32 * 8) + 5)
++#define GPIO_RI_6    ((32 * 8) + 6)
++#define GPIO_RI_7    ((32 * 8) + 7)
++#define GPIO_RI_8    ((32 * 8) + 8)
++#define GPIO_RI_9    ((32 * 8) + 9)
++#define GPIO_RI_10   ((32 * 8) + 10)
++#define GPIO_RI_11   ((32 * 8) + 11)
++#define GPIO_RI_12   ((32 * 8) + 12)
++#define GPIO_RI_13   ((32 * 8) + 13)
++
++/*
++ * The following section defines extra GPIO available to some boards.
++ * These GPIO are generally external to the processor (i.e. SPI/I2C
++ * expander chips).
++ *
++ * Note that these defines show all possible GPIO available, however,
++ * depending on the actual board configuration, some GPIO are not
++ * available for use.
++ */
++#ifdef CONFIG_IP7500MEDIA
++/*
++ * U15
++ */
++#define IP7500MEDIA_U15_BASE	(32 * 10)
++#define IP7500MEDIA_IO0		(IP7500MEDIA_U15_BASE + 0)
++#define IP7500MEDIA_IO1		(IP7500MEDIA_U15_BASE + 1)
++#define IP7500MEDIA_IO2		(IP7500MEDIA_U15_BASE + 2)
++#define IP7500MEDIA_IO3		(IP7500MEDIA_U15_BASE + 3)
++#define IP7500MEDIA_IO4		(IP7500MEDIA_U15_BASE + 4)
++#define IP7500MEDIA_IO5		(IP7500MEDIA_U15_BASE + 5)
++#define IP7500MEDIA_IO6		(IP7500MEDIA_U15_BASE + 6)
++#define IP7500MEDIA_IO7		(IP7500MEDIA_U15_BASE + 7)
++
++/*
++ * U16
++ */
++#define IP7500MEDIA_U16_BASE	(32 * 11)
++#define IP7500MEDIA_IO8		(IP7500MEDIA_U16_BASE + 0)
++#define IP7500MEDIA_IO9		(IP7500MEDIA_U16_BASE + 1)
++#define IP7500MEDIA_IO10	(IP7500MEDIA_U16_BASE + 2)
++#define IP7500MEDIA_IO11	(IP7500MEDIA_U16_BASE + 3)
++#define IP7500MEDIA_IO12	(IP7500MEDIA_U16_BASE + 4)
++#define IP7500MEDIA_IO13	(IP7500MEDIA_U16_BASE + 5)
++#define IP7500MEDIA_IO14	(IP7500MEDIA_U16_BASE + 6)
++#define IP7500MEDIA_IO15	(IP7500MEDIA_U16_BASE + 7)
++
++/*
++ * U17
++ */
++#define IP7500MEDIA_U17_BASE	(32 * 12)
++#define IP7500MEDIA_IO16	(IP7500MEDIA_U17_BASE + 0)
++#define IP7500MEDIA_IO17	(IP7500MEDIA_U17_BASE + 1)
++#define IP7500MEDIA_IO18	(IP7500MEDIA_U17_BASE + 2)
++#define IP7500MEDIA_IO19	(IP7500MEDIA_U17_BASE + 3)
++#define IP7500MEDIA_IO20	(IP7500MEDIA_U17_BASE + 4)
++#define IP7500MEDIA_IO21	(IP7500MEDIA_U17_BASE + 5)
++#define IP7500MEDIA_IO22	(IP7500MEDIA_U17_BASE + 6)
++#define IP7500MEDIA_IO23	(IP7500MEDIA_U17_BASE + 7)
++
++/*
++ * U18
++ */
++#define IP7500MEDIA_U18_BASE	(32 * 13)
++#define IP7500MEDIA_IO24	(IP7500MEDIA_U18_BASE + 0)
++#define IP7500MEDIA_IO25	(IP7500MEDIA_U18_BASE + 1)
++#define IP7500MEDIA_IO26	(IP7500MEDIA_U18_BASE + 2)
++#define IP7500MEDIA_IO27	(IP7500MEDIA_U18_BASE + 3)
++#define IP7500MEDIA_IO28	(IP7500MEDIA_U18_BASE + 4)
++#define IP7500MEDIA_IO29	(IP7500MEDIA_U18_BASE + 5)
++#define IP7500MEDIA_IO30	(IP7500MEDIA_U18_BASE + 6)
++#define IP7500MEDIA_IO31	(IP7500MEDIA_U18_BASE + 7)
++#endif
++
++#ifdef CONFIG_IP7145DPF
++/*
++ * U48
++ */
++#define IP7145DPF_U48_BASE	(32 * 10)
++#define IP7145DPF_IO0		(IP7145DPF_U48_BASE + 0)
++#define IP7145DPF_IO1		(IP7145DPF_U48_BASE + 1)
++#define IP7145DPF_IO2		(IP7145DPF_U48_BASE + 2)
++#define IP7145DPF_IO3		(IP7145DPF_U48_BASE + 3)
++#define IP7145DPF_IO4		(IP7145DPF_U48_BASE + 4)
++#define IP7145DPF_IO5		(IP7145DPF_U48_BASE + 5)
++#define IP7145DPF_IO6		(IP7145DPF_U48_BASE + 6)
++#define IP7145DPF_IO7		(IP7145DPF_U48_BASE + 7)
++
++/*
++ * U72
++ */
++#define IP7145DPF_U72_BASE	(32 * 11)
++#define IP7145DPF_IOB0		(IP7145DPF_U72_BASE + 0)
++#define IP7145DPF_IOB1		(IP7145DPF_U72_BASE + 1)
++#define IP7145DPF_IOB2		(IP7145DPF_U72_BASE + 2)
++#define IP7145DPF_IOB3		(IP7145DPF_U72_BASE + 3)
++#define IP7145DPF_IOB4		(IP7145DPF_U72_BASE + 4)
++#define IP7145DPF_IOB5		(IP7145DPF_U72_BASE + 5)
++#define IP7145DPF_IOB6		(IP7145DPF_U72_BASE + 6)
++#define IP7145DPF_IOB7		(IP7145DPF_U72_BASE + 7)
++#endif
++
++#include <asm-generic/gpio.h>
++
++/*
++ * The following macros bypass gpiolib to generate direct references
++ * to the port registers.  These assume, minimally, that either
++ * gpio_direction_input() or gpio_direction_output() have already been
++ * called to setup the pin direction and to enable the pin function to
++ * be gpio.  These macros generate the hardware port address based on
++ * the assumption that all ports are 32 bits wide (even though we know
++ * they are not).  This is so we can efficiently turn pin numbers into
++ * port addresses without a lookup.
++ *
++ * These operations must be done in one instruction to prevent clobbering
++ * other thread's accesses to the same port.
++ */
++#define UBICOM32_GPIO_ENABLE(pin)				\
++	do {							\
++		asm volatile ("or.4 (%[port]), (%[port]), %[mask]\n\t"						\
++				:										\
++				: [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_mask),	\
++				  [mask] "d" (gpio_bit(pin))							\
++				: "cc", "memory"								\
++		);												\
++	} while (0);
++
++#define UBICOM32_GPIO_DISABLE(pin)				\
++	do {							\
++		asm volatile ("and.4 (%[port]), (%[port]), %[mask]\n\t"						\
++				:										\
++				: [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_mask),	\
++				  [mask] "d" (~gpio_bit(pin))							\
++				: "cc", "memory"								\
++		);												\
++	} while (0);
++
++#define UBICOM32_GPIO_SET_PIN_INPUT(pin)			\
++	do {							\
++		asm volatile ("and.4 (%[port]), (%[port]), %[mask]\n\t"						\
++				:										\
++				: [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_ctl),	\
++				  [mask] "d" (~gpio_bit(pin))							\
++				: "cc", "memory"								\
++		);												\
++	} while (0);
++
++#define UBICOM32_GPIO_SET_PIN_OUTPUT(pin)			\
++	do {							\
++		asm volatile ("or.4 (%[port]), (%[port]), %[mask]\n\t"						\
++				:										\
++				: [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_ctl),	\
++				  [mask] "d" (gpio_bit(pin))							\
++				: "cc", "memory"								\
++		);												\
++	} while (0);
++
++#define UBICOM32_GPIO_SET_PIN_TOGGLE(pin)			\
++	do {							\
++		asm volatile ("xor.4 (%[port]), (%[port]), %[mask]\n\t"						\
++				:										\
++				: [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_out),	\
++				  [mask] "d" (gpio_bit(pin))							\
++				: "cc", "memory"								\
++		);												\
++	} while (0);
++
++#define UBICOM32_GPIO_SET_PIN_HIGH(pin)				\
++	do {							\
++		asm volatile ("or.4 (%[port]), (%[port]), %[mask]\n\t"						\
++				:										\
++				: [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_out),	\
++				  [mask] "d" (gpio_bit(pin))							\
++				: "cc", "memory"								\
++		);												\
++	} while (0);
++
++#define UBICOM32_GPIO_SET_PIN_LOW(pin)				\
++	do {							\
++		asm volatile ("and.4 (%[port]), (%[port]), %[mask]\n\t"						\
++				:										\
++				: [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_out),	\
++				  [mask] "d" (~gpio_bit(pin))							\
++				: "cc", "memory"								\
++		);												\
++	} while (0);
++
++#define UBICOM32_GPIO_SET_PIN(pin, val) \
++  if ( val ) {                          \
++    UBICOM32_GPIO_SET_PIN_HIGH(pin);    \
++  } else {                              \
++    UBICOM32_GPIO_SET_PIN_LOW(pin);	\
++  }
++
++#define UBICOM32_GPIO_GET_PIN(pin)                                    \
++  (0 != (UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_in  \
++	 & gpio_bit(pin)))
++
++
++static inline int gpio_get_value(unsigned gpio) 
++{
++  if (gpio <= MAX_UBICOM_ONCHIP_GPIO)
++    return UBICOM32_GPIO_GET_PIN(gpio);
++  else
++    return __gpio_get_value(gpio);
++}
++
++static inline void gpio_set_value(unsigned gpio, int value)
++{
++  if (gpio <= MAX_UBICOM_ONCHIP_GPIO)
++    {
++      UBICOM32_GPIO_SET_PIN(gpio, value);
++    }
++  else
++    {
++      __gpio_set_value(gpio, value);
++    }
++}
++
++static inline int gpio_cansleep(unsigned gpio)
++{
++  return __gpio_cansleep(gpio);
++}
++
++static inline int gpio_to_irq(unsigned gpio)
++{
++#if defined(IP5000) || defined(IP5000_REV2)
++  if ((gpio >= GPIO_RA_4) && (gpio <= GPIO_RA_6))
++    return 25;
++  else
++    return -ENXIO;
++
++#elif defined(IP7000) || defined(IP7000_REV2)
++  if ((gpio >= GPIO_RA_4) && (gpio <= GPIO_RA_6))
++    return 44 + (gpio - GPIO_RA_4);
++  else
++    return -ENXIO;
++
++#else
++    return -ENXIO;
++
++#endif
++}
++
++static inline int irq_to_gpio(unsigned gpio)
++{
++	return -ENXIO;
++}
++
++extern struct ubicom32_io_port *ubi_gpio_get_port(unsigned gpio);
++
++extern int __init ubi_gpio_init(void);
++
++#endif /* _ASM_UBICOM32_GPIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/hardirq.h
+@@ -0,0 +1,55 @@
++/*
++ * arch/ubicom32/include/asm/hardirq.h
++ *   Definition of ack_bad_irq() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1997, 98, 99, 2000, 01, 05 Ralf Baechle (ralf@linux-mips.org)
++ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
++ * Copyright (C) 2001 MIPS Technologies, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_HARDIRQ_H
++#define _ASM_UBICOM32_HARDIRQ_H
++
++#include <linux/threads.h>
++#include <linux/irq.h>
++
++/*
++ * The hardirq mask has to be large enough to have space
++ * for potentially all IRQ sources in the system nesting
++ * on a single CPU.  For Ubicom32, we have 64 IRQ sources.
++ */
++#define HARDIRQ_BITS	6
++#if (1 << HARDIRQ_BITS) < NR_IRQS
++# error HARDIRQ_BITS is too low!
++#endif
++
++typedef struct {
++	unsigned int __softirq_pending;
++} ____cacheline_aligned irq_cpustat_t;
++
++#include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */
++
++extern void ack_bad_irq(unsigned int irq);
++
++#endif /* _ASM_UBICOM32_HARDIRQ_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/hw_irq.h
+@@ -0,0 +1,31 @@
++/*
++ * arch/ubicom32/include/asm/hw_irq.h
++ *   Ubicom32 architecture APIC support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_HW_IRQ_H
++#define _ASM_UBICOM32_HW_IRQ_H
++
++#endif /* _ASM_UBICOM32_HW_IRQ_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ioctl.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/ioctl.h
++ *   Generic ioctl.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IOCTL_H
++#define _ASM_UBICOM32_IOCTL_H
++
++#include <asm-generic/ioctl.h>
++
++#endif /* _ASM_UBICOM32_IOCTL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ioctls.h
+@@ -0,0 +1,111 @@
++/*
++ * arch/ubicom32/include/asm/ioctls.h
++ *   Definitions of ioctls for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IOCTLS_H
++#define _ASM_UBICOM32_IOCTLS_H
++
++#include <asm/ioctl.h>
++
++/* 0x54 is just a magic number to make these relatively unique ('T') */
++
++#define TCGETS		0x5401
++#define TCSETS		0x5402
++#define TCSETSW		0x5403
++#define TCSETSF		0x5404
++#define TCGETA		0x5405
++#define TCSETA		0x5406
++#define TCSETAW		0x5407
++#define TCSETAF		0x5408
++#define TCSBRK		0x5409
++#define TCXONC		0x540A
++#define TCFLSH		0x540B
++#define TIOCEXCL	0x540C
++#define TIOCNXCL	0x540D
++#define TIOCSCTTY	0x540E
++#define TIOCGPGRP	0x540F
++#define TIOCSPGRP	0x5410
++#define TIOCOUTQ	0x5411
++#define TIOCSTI		0x5412
++#define TIOCGWINSZ	0x5413
++#define TIOCSWINSZ	0x5414
++#define TIOCMGET	0x5415
++#define TIOCMBIS	0x5416
++#define TIOCMBIC	0x5417
++#define TIOCMSET	0x5418
++#define TIOCGSOFTCAR	0x5419
++#define TIOCSSOFTCAR	0x541A
++#define FIONREAD	0x541B
++#define TIOCINQ		FIONREAD
++#define TIOCLINUX	0x541C
++#define TIOCCONS	0x541D
++#define TIOCGSERIAL	0x541E
++#define TIOCSSERIAL	0x541F
++#define TIOCPKT		0x5420
++#define FIONBIO		0x5421
++#define TIOCNOTTY	0x5422
++#define TIOCSETD	0x5423
++#define TIOCGETD	0x5424
++#define TCSBRKP		0x5425	/* Needed for POSIX tcsendbreak() */
++#define TIOCSBRK	0x5427  /* BSD compatibility */
++#define TIOCCBRK	0x5428  /* BSD compatibility */
++#define TIOCGSID	0x5429  /* Return the session ID of FD */
++#define TCGETS2		_IOR('T',0x2A, struct termios2)
++#define TCSETS2		_IOW('T',0x2B, struct termios2)
++#define TCSETSW2	_IOW('T',0x2C, struct termios2)
++#define TCSETSF2	_IOW('T',0x2D, struct termios2)
++#define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
++#define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
++
++#define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
++#define FIOCLEX		0x5451
++#define FIOASYNC	0x5452
++#define TIOCSERCONFIG	0x5453
++#define TIOCSERGWILD	0x5454
++#define TIOCSERSWILD	0x5455
++#define TIOCGLCKTRMIOS	0x5456
++#define TIOCSLCKTRMIOS	0x5457
++#define TIOCSERGSTRUCT	0x5458 /* For debugging only */
++#define TIOCSERGETLSR   0x5459 /* Get line status register */
++#define TIOCSERGETMULTI 0x545A /* Get multiport config  */
++#define TIOCSERSETMULTI 0x545B /* Set multiport config */
++
++#define TIOCMIWAIT	0x545C	/* wait for a change on serial input line(s) */
++#define TIOCGICOUNT	0x545D	/* read serial port inline interrupt counts */
++#define FIOQSIZE	0x545E
++
++/* Used for packet mode */
++#define TIOCPKT_DATA		 0
++#define TIOCPKT_FLUSHREAD	 1
++#define TIOCPKT_FLUSHWRITE	 2
++#define TIOCPKT_STOP		 4
++#define TIOCPKT_START		 8
++#define TIOCPKT_NOSTOP		16
++#define TIOCPKT_DOSTOP		32
++
++#define TIOCSER_TEMT    0x01	/* Transmitter physically empty */
++
++#endif /* _ASM_UBICOM32_IOCTLS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/io.h
+@@ -0,0 +1,313 @@
++/*
++ * arch/ubicom32/include/asm/io.h
++ *   I/O memory accessor functions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IO_H
++#define _ASM_UBICOM32_IO_H
++
++#ifdef __KERNEL__
++#include <linux/string.h>
++#include <linux/compiler.h>
++
++static inline unsigned short _swapw(volatile unsigned short v)
++{
++    return ((v << 8) | (v >> 8));
++}
++
++static inline unsigned int _swapl(volatile unsigned long v)
++{
++    return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24));
++}
++
++#ifndef CONFIG_PCI
++#define readb(addr) \
++    ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
++#define readw(addr) \
++    ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
++#define readl(addr) \
++    ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
++
++#define writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b))
++#define writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b))
++#define writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b))
++#else /*CONFIG_PCI */
++
++#define PCI_CPU_REG_BASE (0x00000000UL)   /* taking lower 2GB space */
++#define PCI_DEV_REG_BASE (0x80000000UL)
++
++#if PCI_CPU_REG_BASE > PCI_DEV_REG_BASE
++#define IS_PCI_ADDRESS(x) (((unsigned int)(x)&(PCI_CPU_REG_BASE)) == 0)
++#else
++#define IS_PCI_ADDRESS(x) ((unsigned int)(x)&(PCI_DEV_REG_BASE))
++#endif 
++
++extern unsigned int ubi32_pci_read_u32(const volatile void __iomem *addr);
++extern unsigned short ubi32_pci_read_u16(const volatile void __iomem *addr);
++extern unsigned char ubi32_pci_read_u8(const volatile void __iomem *addr);
++extern  void ubi32_pci_write_u32(unsigned int val, const volatile void __iomem *addr);
++extern  void ubi32_pci_write_u16(unsigned short val, const volatile void __iomem *addr);
++extern  void ubi32_pci_write_u8(unsigned char val, const volatile void __iomem *addr);
++
++static  inline unsigned char readb(const volatile void __iomem *addr)
++{
++	if (IS_PCI_ADDRESS(addr))
++		return ubi32_pci_read_u8(addr);
++	else 
++		return (unsigned char)(*(volatile unsigned char *)addr); 
++}
++static inline unsigned short readw(const volatile void __iomem *addr)
++{
++	if (IS_PCI_ADDRESS(addr))
++		return ubi32_pci_read_u16(addr);
++	else 
++		return (unsigned short)(*(volatile unsigned short *)addr);	
++}
++
++static  inline unsigned int  readl(const volatile void __iomem *addr)
++{
++	if (IS_PCI_ADDRESS(addr))
++		return ubi32_pci_read_u32(addr);
++	else 
++		return (unsigned int)(*(volatile unsigned int *)addr);
++}
++
++static inline void writel(unsigned int val, volatile void __iomem *addr)
++{
++  	if (IS_PCI_ADDRESS(addr))
++                ubi32_pci_write_u32(val, addr);
++        else
++               	*(volatile unsigned int *)addr = val; 
++}
++
++static inline void writew(unsigned short val, volatile void __iomem *addr)
++{
++  	if (IS_PCI_ADDRESS(addr))
++                ubi32_pci_write_u16(val, addr);
++        else
++               	*(volatile unsigned short *)addr = val; 
++}
++
++static inline void writeb(unsigned char val, volatile void __iomem *addr)
++{
++  	if (IS_PCI_ADDRESS(addr))
++                ubi32_pci_write_u8(val, addr);
++        else
++               	*(volatile unsigned char *)addr = val; 
++}
++#endif
++
++#define readb_relaxed(addr) readb(addr)
++#define readw_relaxed(addr) readw(addr)
++#define readl_relaxed(addr) readl(addr)
++
++
++#define __raw_readb readb
++#define __raw_readw readw
++#define __raw_readl readl
++#define __raw_writeb writeb
++#define __raw_writew writew
++#define __raw_writel writel
++
++static inline void io_outsb(unsigned int addr, const void *buf, int len)
++{
++	volatile unsigned char *ap = (volatile unsigned char *) addr;
++	unsigned char *bp = (unsigned char *) buf;
++	while (len--)
++		*ap = *bp++;
++}
++
++static inline void io_outsw(unsigned int addr, const void *buf, int len)
++{
++	volatile unsigned short *ap = (volatile unsigned short *) addr;
++	unsigned short *bp = (unsigned short *) buf;
++	while (len--)
++		*ap = _swapw(*bp++);
++}
++
++static inline void io_outsl(unsigned int addr, const void *buf, int len)
++{
++	volatile unsigned int *ap = (volatile unsigned int *) addr;
++	unsigned int *bp = (unsigned int *) buf;
++	while (len--)
++		*ap = _swapl(*bp++);
++}
++
++static inline void io_insb(unsigned int addr, void *buf, int len)
++{
++	volatile unsigned char *ap = (volatile unsigned char *) addr;
++	unsigned char *bp = (unsigned char *) buf;
++	while (len--)
++		*bp++ = *ap;
++}
++
++static inline void io_insw(unsigned int addr, void *buf, int len)
++{
++	volatile unsigned short *ap = (volatile unsigned short *) addr;
++	unsigned short *bp = (unsigned short *) buf;
++	while (len--)
++		*bp++ = _swapw(*ap);
++}
++
++static inline void io_insl(unsigned int addr, void *buf, int len)
++{
++	volatile unsigned int *ap = (volatile unsigned int *) addr;
++	unsigned int *bp = (unsigned int *) buf;
++	while (len--)
++		*bp++ = _swapl(*ap);
++}
++
++#define mmiowb()
++
++/*
++ *	make the short names macros so specific devices
++ *	can override them as required
++ */
++#ifndef CONFIG_PCI
++#define memset_io(a,b,c)	memset((void *)(a),(b),(c))
++#define memcpy_fromio(a,b,c)	memcpy((a),(void *)(b),(c))
++#define memcpy_toio(a,b,c)	memcpy((void *)(a),(b),(c))
++#else 
++extern void memcpy_fromio(void *to, const volatile void __iomem *from, unsigned len);
++extern void memcpy_toio(volatile void __iomem *to, const void *from, unsigned len);
++extern void memset_io(volatile void __iomem *addr, int val, size_t count);
++#endif
++
++#define inb(addr)    readb(addr)
++#define inw(addr)    readw(addr)
++#define inl(addr)    readl(addr)
++#define outb(x,addr) ((void) writeb(x,addr))
++#define outw(x,addr) ((void) writew(x,addr))
++#define outl(x,addr) ((void) writel(x,addr))
++
++#define inb_p(addr)    inb(addr)
++#define inw_p(addr)    inw(addr)
++#define inl_p(addr)    inl(addr)
++#define outb_p(x,addr) outb(x,addr)
++#define outw_p(x,addr) outw(x,addr)
++#define outl_p(x,addr) outl(x,addr)
++
++#define outsb(a,b,l) io_outsb(a,b,l)
++#define outsw(a,b,l) io_outsw(a,b,l)
++#define outsl(a,b,l) io_outsl(a,b,l)
++
++#define insb(a,b,l) io_insb(a,b,l)
++#define insw(a,b,l) io_insw(a,b,l)
++#define insl(a,b,l) io_insl(a,b,l)
++
++#ifndef CONFIG_PCI
++#define ioread8_rep(a,d,c)	insb(a,d,c)
++#define ioread16_rep(a,d,c)	insw(a,d,c)
++#define ioread32_rep(a,d,c)	insl(a,d,c)
++#define iowrite8_rep(a,s,c)	outsb(a,s,c)
++#define iowrite16_rep(a,s,c)	outsw(a,s,c)
++#define iowrite32_rep(a,s,c)	outsl(a,s,c)
++#else
++extern void  ioread8_rep(void __iomem *port, void *buf, unsigned long count);
++extern void  ioread16_rep(void __iomem *port, void *buf, unsigned long count);
++extern void  ioread32_rep(void __iomem *port, void *buf, unsigned long count);
++extern void  iowrite8_rep(void __iomem *port, const void *buf, unsigned long count);
++extern void  iowrite16_rep(void __iomem *port, const void *buf, unsigned long count);
++extern void  iowrite32_rep(void __iomem *port, const void *buf, unsigned long count);
++#endif
++
++
++#ifndef CONFIG_PCI
++#define ioread8(X)			readb(X)
++#define ioread16(X)			readw(X)
++#define ioread32(X)			readl(X)
++#define iowrite8(val,X)			writeb(val,X)
++#define iowrite16(val,X)		writew(val,X)
++#define iowrite32(val,X)		writel(val,X)
++#else /*CONFIG_PCI */
++extern  unsigned char  ioread8(void __iomem *addr);
++extern  unsigned short ioread16(void __iomem *addr);
++extern  unsigned int  ioread32(void __iomem *addr);
++extern  void iowrite8(unsigned char val, void __iomem *addr);
++extern  void iowrite16(unsigned short val, void __iomem *addr);
++extern  void iowrite32(unsigned int val, void __iomem *addr);
++#endif /* CONFIG_PCI */
++
++#define IO_SPACE_LIMIT 0xffff
++
++/* Values for nocacheflag and cmode */
++#define IOMAP_FULL_CACHING		0
++#define IOMAP_NOCACHE_SER		1
++#define IOMAP_NOCACHE_NONSER		2
++#define IOMAP_WRITETHROUGH		3
++
++extern void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
++extern void __iounmap(void *addr, unsigned long size);
++
++static inline void *ioremap(unsigned long physaddr, unsigned long size)
++{
++	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
++}
++static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
++{
++	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
++}
++static inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size)
++{
++	return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
++}
++static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
++{
++	return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
++}
++
++extern void iounmap(void *addr);
++
++#define ioport_map(port, nr)            ((void __iomem*)(port))
++#define ioport_unmap(addr)
++
++
++/* Pages to physical address... */
++#define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)
++#define page_to_bus(page)       ((page - mem_map) << PAGE_SHIFT)
++
++/*
++ * Macros used for converting between virtual and physical mappings.
++ */
++#define phys_to_virt(vaddr)	((void *) (vaddr))
++#define virt_to_phys(vaddr)	((unsigned long) (vaddr))
++
++#define virt_to_bus virt_to_phys
++#define bus_to_virt phys_to_virt
++
++/*
++ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
++ * access
++ */
++#define xlate_dev_mem_ptr(p)	__va(p)
++
++/*
++ * Convert a virtual cached pointer to an uncached pointer
++ */
++#define xlate_dev_kmem_ptr(p)	p
++
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_IO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ip5000-asm.h
+@@ -0,0 +1,156 @@
++/*
++ * arch/ubicom32/include/asm/ip5000-asm.h
++ *	Instruction macros for the IP5000.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_IP5000_ASM_H
++#define _ASM_UBICOM32_IP5000_ASM_H
++
++#if !defined(__LINKER__)
++
++#if defined(__ASSEMBLY__)
++.macro	cycles	quant
++.if	(\quant) == 1
++	nop
++.else
++.if	(((\quant) + 3) / 8) > 0
++.rept	(((\quant) + 3) / 8)
++	jmpt.f		.+4
++.endr
++.endif
++.if	((((\quant) + 3) % 8) / 4) > 0
++	jmpt.t		.+4
++.endif
++.endif
++.endm
++#else
++/*
++ * Same macro as above just in C inline asm
++ */
++asm ("					\n\
++.macro	cycles	quant			\n\
++.if	(\\quant) == 1			\n\
++	nop				\n\
++.else					\n\
++.if	(((\\quant) + 3) / 8) > 0	\n\
++.rept	(((\\quant) + 3) / 8)		\n\
++	jmpt.f		.+4		\n\
++.endr					\n\
++.endif					\n\
++.if	((((\\quant) + 3) % 8) / 4) > 0	\n\
++	jmpt.t		.+4		\n\
++.endif					\n\
++.endif					\n\
++.endm					\n\
++");
++#endif
++
++
++#if defined(__ASSEMBLY__)
++.macro	pipe_flush	cyc
++	cycles		11 - (\cyc)
++.endm
++#else
++/*
++ * Same macro as above just in C inline asm
++ */
++asm ("					\n\
++.macro	pipe_flush	cyc		\n\
++	cycles		11 - (\\cyc)	\n\
++.endm					\n\
++");
++
++#endif
++
++#if defined(__ASSEMBLY__)
++.macro	setcsr_flush	cyc
++	cycles		5 - (\cyc)
++.endm
++#else
++/*
++ * Same macro as above just in C inline asm
++ */
++asm ("					\n\
++.macro	setcsr_flush	cyc		\n\
++	cycles		5 - (\\cyc)	\n\
++.endm					\n\
++");
++#endif
++
++/*
++ * Macros for prefetch (using miss-aligned memory write)
++ */
++#if defined(__ASSEMBLY__)
++
++.macro	pre_fetch_macro	thread_num, Ascratch, Aaddress length
++	bclr		MT_TRAP_EN, MT_TRAP_EN, #(\thread_num)
++	bset		\Ascratch, \Aaddress, #0	; force a miss-aligned address
++	jmpt.t		.+4				; delay for both address setup and trap disable
++	move.4		(\Ascratch), #0
++	.if		(\length > 32)
++	move.4		32(\Ascratch), #0
++	.endif
++	.if		(\length > 64)
++	move.4		64(\Ascratch), #0
++	.endif
++	.if		(\length > 96)
++	move.4		96(\Ascratch), #0
++	.endif
++	.if		(\length > 128)
++	invalid_instruction				; maximum pre-fetch size is 4 cache lines
++	.endif
++	bset		MT_TRAP_EN, MT_TRAP_EN, #(\thread_num)
++.endm
++
++#else
++/*
++ * Same macro as above just in C inline asm
++ */
++asm ("								\n\
++.macro	pre_fetch_macro	thread_num, Ascratch, Aaddress length	\n\
++	bclr		MT_TRAP_EN, MT_TRAP_EN, #(\thread_num)	\n\
++	bset		\\Ascratch, \\Aaddress, #0	; force a miss-aligned address \n\
++	jmpt.t		.+4				; delay for both address setup and trap disable \n\
++	move.4		(\\Ascratch), #0			\n\
++	.if		(\\length > 32)				\n\
++	move.4		32(\\Ascratch), #0			\n\
++	.endif							\n\
++	.if		(\\length > 64)				\n\
++	move.4		64(\\Ascratch), #0			\n\
++	.endif							\n\
++	.if		(\\length > 96)				\n\
++	move.4		96(\\Ascratch), #0			\n\
++	.endif							\n\
++	.if		(\\length > 128)			\n\
++	invalid_instruction				; maximum pre-fetch size is 4 cache lines \n\
++	.endif							\n\
++	bset		MT_TRAP_EN, MT_TRAP_EN, #(\\thread_num)	\n\
++.endm								\n\
++");
++#endif
++
++#endif /* !defined(__LINKER__) */
++#endif /* defined _ASM_UBICOM32_IP5000_ASM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ip5000.h
+@@ -0,0 +1,860 @@
++/*
++ * arch/ubicom32/include/asm/ip5000.h
++ *   Specific details for the Ubicom IP5000 processor.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_IP5000_H
++#define _ASM_UBICOM32_IP5000_H
++
++/*
++ * Inline assembly define
++ */
++#define S(arg) #arg
++#define D(arg) S(arg)
++
++/*
++ * Assembler include file
++ */
++#include <asm/ip5000-asm.h>
++
++/*
++ * Timing
++ */
++#define JMPT_PENALTY 3
++#define JMPF_PENALTY 7
++#define RET_PENALTY 7
++
++/*
++ * Threads
++ */
++#if defined(IP5000) || defined(IP5000_REV2)
++#define THREAD_COUNT 10
++#elif defined(IP7000) || defined(IP7000_REV2)
++#define THREAD_COUNT 12
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++/*
++ * Arch
++ */
++#if defined(IP5000) || defined(IP5000_REV2)
++#define UBICOM32_ARCH_VERSION 3
++#elif defined(IP7000) || defined(IP7000_REV2)
++#define UBICOM32_ARCH_VERSION 4
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++/*
++ * Memory Size
++ */
++#define OCM_SECTOR_SIZE	0x00008000		/* 32K */
++
++#if defined(IP5000) || defined(IP5000_REV2)
++#define OCMSIZE	0x00030000		/* 192K on-chip RAM for both program and data */
++#elif defined(IP7000) || defined(IP7000_REV2)
++#define OCMSIZE	0x0003C000		/* 240K on-chip RAM for both program and data */
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++#define OCMSTART	0x3ffc0000		/* alias from 0x03000000 for easy jump to/from SDRAM */
++#define OCMEND		(OCMSTART + OCMSIZE)
++#define SDRAMSTART	0x40000000
++#define FLASHSTART	0x60000000
++
++/*
++ * Registers
++ */
++#define ROSR_INT (1 << 0)
++
++/* Interrupts */
++#define INT_CHIP(reg, bit) (((reg) << 5) | (bit))
++#define INT_REG(interrupt) (((interrupt) >> 5) * 4)
++#define INT_SET(interrupt) 0x0114 + INT_REG(interrupt)
++#define INT_CLR(interrupt) 0x0124 + INT_REG(interrupt)
++#define INT_STAT(interrupt) 0x0104 + INT_REG(interrupt)
++#define INT_MASK(interrupt) 0x00C0 + INT_REG(interrupt)
++#define INT_BIT(interrupt) ((interrupt) & 0x1F)
++#define INT_BIT_MASK(interrupt) (1 << INT_BIT(interrupt))
++
++/*
++ * The LOCK_INT and THREAD_INT are used to wake up corresponding thread. They are sharing
++ * the same set of SW interrupt resource.
++ *
++ * LOCK_INT(n): One SW INT per NRT thread that can participate lock operation.
++ *	The threads that can participate lock are application threads and DSR thread.
++ *	(Lock locks - numbers are hard-coded in lock.h)
++ * THREAD_INT(n):   One SW INT per HRT thread for wake up trigger.
++ */
++#define LOCK_INT(thread)	INT_CHIP(0, (thread))
++#define THREAD_INT(thread)	INT_CHIP(0, (thread))
++
++/*
++ * The SYSTEM_INT and DSR_INT are sharing the same set of SW interrupt resource.
++ *
++ * SYSTEM_INT(n): One SW INT per NRT threads (application threads) as system queue interrupt,
++ *	and for DSR as self-trigger interrupt.
++ *	(The application threads include at least thread 0)
++ * DSR_INT(n):    One SW INT per HRT thread to request DSR service.
++ */
++#define SYSTEM_INT(thread)	INT_CHIP(0, THREAD_COUNT + (thread))
++#define DSR_INT(thread)		INT_CHIP(0, THREAD_COUNT + (thread))
++
++/* GLOBAL_CTRL */
++#define GLOBAL_CTRL_TRAP_RST_EN (1 << 9)
++#define GLOBAL_CTRL_AERROR_RST_EN (1 << 8)
++#define GLOBAL_CTRL_MT_MIN_DELAY(x) ((x) << 3)
++#define GLOBAL_CTRL_HRT_BANK_SELECT (1 << 2)
++#define GLOBAL_CTRL_INT_EN (1 << 0)
++
++/*
++ * HRT Tables
++ */
++#define HRT_TABLE0_BASE 0x0800
++#define HRT_TABLE1_BASE 0x0900
++#define HRT_TABLE_SIZE 64
++
++/*
++ * Break Point Trap Register
++ */
++#define ASYNCERROR_INT INT_CHIP(0, 31)
++#define BREAKPOINT_INT INT_CHIP(1, 31)
++
++/*
++ * Port interrupts
++ *	The non-existing FIFO INTs are mapped to INT2 for the ports.
++ */
++#define IO_PORT_PTR_TO_NUM(port) (((port) & 0x0000ffff) >> 12)
++#define RX_FIFO_INT(port) \
++	((IO_PORT_PTR_TO_NUM(port) == 0) ? INT_CHIP(0, 25) : \
++	((IO_PORT_PTR_TO_NUM(port) == 1) ? INT_CHIP(0, 26) : \
++	((IO_PORT_PTR_TO_NUM(port) == 2) ? INT_CHIP(0, 29) : \
++	((IO_PORT_PTR_TO_NUM(port) == 3) ? INT_CHIP(1, 24) : \
++	((IO_PORT_PTR_TO_NUM(port) == 4) ? INT_CHIP(1, 27) : \
++	((IO_PORT_PTR_TO_NUM(port) == 5) ? INT_CHIP(1, 16) : \
++	((IO_PORT_PTR_TO_NUM(port) == 6) ? INT_CHIP(1, 19) : \
++	((IO_PORT_PTR_TO_NUM(port) == 7) ? INT_CHIP(1, 20) : \
++	((IO_PORT_PTR_TO_NUM(port) == 8) ? INT_CHIP(1, 21) : \
++	INT_CHIP(1, 15))))))))))
++#define TX_FIFO_INT(port) \
++	((IO_PORT_PTR_TO_NUM(port) == 0) ? INT_CHIP(0, 24) : \
++	((IO_PORT_PTR_TO_NUM(port) == 1) ? INT_CHIP(0, 27) : \
++	((IO_PORT_PTR_TO_NUM(port) == 2) ? INT_CHIP(0, 29) : \
++	((IO_PORT_PTR_TO_NUM(port) == 3) ? INT_CHIP(1, 25) : \
++	((IO_PORT_PTR_TO_NUM(port) == 4) ? INT_CHIP(1, 28) : \
++	((IO_PORT_PTR_TO_NUM(port) == 5) ? INT_CHIP(1, 17) : \
++	((IO_PORT_PTR_TO_NUM(port) == 6) ? INT_CHIP(1, 19) : \
++	((IO_PORT_PTR_TO_NUM(port) == 7) ? INT_CHIP(1, 20) : \
++	((IO_PORT_PTR_TO_NUM(port) == 8) ? INT_CHIP(1, 22) : \
++	INT_CHIP(1, 15))))))))))
++#define PORT_OTHER_INT(port) \
++	((IO_PORT_PTR_TO_NUM(port) == 0) ? INT_CHIP(0, 25) : \
++	((IO_PORT_PTR_TO_NUM(port) == 1) ? INT_CHIP(0, 28) : \
++	((IO_PORT_PTR_TO_NUM(port) == 2) ? INT_CHIP(0, 29) : \
++	((IO_PORT_PTR_TO_NUM(port) == 3) ? INT_CHIP(1, 26) : \
++	((IO_PORT_PTR_TO_NUM(port) == 4) ? INT_CHIP(1, 29) : \
++	((IO_PORT_PTR_TO_NUM(port) == 5) ? INT_CHIP(1, 18) : \
++	((IO_PORT_PTR_TO_NUM(port) == 6) ? INT_CHIP(1, 19) : \
++	((IO_PORT_PTR_TO_NUM(port) == 7) ? INT_CHIP(1, 20) : \
++	((IO_PORT_PTR_TO_NUM(port) == 8) ? INT_CHIP(1, 23) : \
++	INT_CHIP(1, 15))))))))))
++
++/*
++ * On Chip Peripherals Base.
++ */
++#define OCP_BASE	0x01000000
++#define OCP_GENERAL	0x000
++#define OCP_TIMERS	0x100
++#define OCP_TRNG	0x200	/* True Random Number Generator Control Reigsters */
++#define OCP_DEBUG	0x300
++#define OCP_SECURITY	0x400
++#define OCP_ICCR	0x500	/* I-Cache Control Registers */
++#define OCP_DCCR	0x600	/* D-Cache Control Registers */
++#define OCP_OCMC	0x700	/* On Chip Memory Control Registers */
++#define OCP_STATISTICS	0x800	/* Statistics Counters */
++#define OCP_MTEST	0x900	/* Memory Test Registers */
++#define OCP_MCFG	0xa00	/* Memory Configuration Registers -- IP7000 only */
++#define OCP_DEBUG_INST	0x000	/* Up to 16M */
++
++/*
++ * General Configuration Registers (PLL)
++ */
++#define GENERAL_CFG_BASE (OCP_BASE + OCP_GENERAL)
++#define GEN_CLK_CORE_CFG 0x00
++#define GEN_CLK_IO_CFG 0x04
++#define GEN_CLK_DDR_CFG 0x08
++#define GEN_CLK_DDRDS_CFG 0x0c
++#define GEN_CLK_SLIP_CLR 0x10
++#define GEN_CLK_SLIP_START 0x14
++#define GEN_CLK_SERDES_SEL 0x18	/* IP7000 only */
++#define GEN_CLK_DDR_CFG2 0x1c	/* IP7000 only */
++#define GEN_DDR_CAL_CTRL 0x30	/* IP5000 only */
++#define GEN_DDR_CAL_STAT 0x34	/* IP5000 only */
++#define GEN_USB_DFT_CTRL 0x38	/* IP5000 only */
++#define GEN_USB_DFT_STAT 0x3c	/* IP5000 only */
++#define GEN_USB_PHY_CFG 0x40	/* IP7000 only */
++#define GEN_USB_PHY_TEST 0x44	/* IP7000 only */
++#define GEN_USB_PHY_STAT 0x48	/* IP7000 only */
++#define GEN_SW_RESET 0x80
++#define GEN_RESET_REASON 0x84
++#define GEN_BOND_CFG 0x88
++#define GEN_IO_PU_CFG 0x8c
++#define GEN_MEM_RM_CFG 0x90
++#define GEN_IO_CONFIG 0x94
++
++#define GEN_CLK_PLL_SECURITY_BIT_NO 31
++#define GEN_CLK_PLL_SECURITY (1 << GEN_CLK_PLL_SECURITY_BIT_NO)
++#define GEN_CLK_PLL_ENSAT (1 << 30)
++#define GEN_CLK_PLL_FASTEN (1 << 29)
++#define GEN_CLK_PLL_NR(v) (((v) - 1) << 23)
++#define GEN_CLK_PLL_NF(v) (((v) - 1) << 11)
++#define GEN_CLK_PLL_OD(v) (((v) - 1) << 8)
++#define GEN_CLK_PLL_RESET (1 << 7)
++#define GEN_CLK_PLL_BYPASS (1 << 6)
++#define GEN_CLK_PLL_POWERDOWN (1 << 5)
++#define GEN_CLK_PLL_SELECT (1 << 4)
++
++#define GEN_GET_CLK_PLL_NR(v) ((((v) >> 23) & 0x003f) + 1)
++#define GEN_GET_CLK_PLL_NF(v) ((((v) >> 11) & 0x0fff) + 1)
++#define GEN_GET_CLK_PLL_OD(v) ((((v) >> 8) & 0x7) + 1)
++
++
++#define RESET_FLAG_DST_MEM_ERROR (1 << 18)
++#define RESET_FLAG_SRC1_MEM_ERROR (1 << 17)
++#define RESET_FLAG_WRITE_ADDR (1 << 16)
++#define RESET_FLAG_DST_SYNC_ERROR (1 << 15)
++#define RESET_FLAG_SRC1_SYNC_ERROR (1 << 14)
++#define RESET_FLAG_DST_ALGN_ERROR (1 << 13)
++#define RESET_FLAG_SRC1_ALGN_ERROR (1 << 12)
++#define RESET_FLAG_DST_ADDR_ERROR (1 << 11)
++#define RESET_FLAG_SRC1_ADDR_ERROR (1 << 10)
++#define RESET_FLAG_ILLEGAL_INST (1 << 9)
++#define RESET_FLAG_INST_SYNC_ERROR (1 << 8)
++#define RESET_FLAG_INST_ADDR_ERROR (1 << 7)
++#define RESET_FLAG_DATA_PORT_ERROR (1 << 6)
++#define RESET_FLAG_INST_PORT_ERROR (1 << 5)
++#define RESET_FLAG_SW_RESET (1 << 4)
++#define RESET_FLAG_DEBUG (1 << 3)
++#define RESET_FLAG_WATCHDOG (1 << 2)
++#define RESET_FLAG_POWER_ON (1 << 1)
++#define RESET_FLAG_EXTERNAL (1 << 0)
++
++/*
++ * Timer block
++ */
++#define TIMER_BASE (OCP_BASE + OCP_TIMERS)
++#define TIMER_MPTVAL 0x00
++#define TIMER_RTCOM 0x04
++#define TIMER_TKEY 0x08
++#define TIMER_WDCOM 0x0c
++#define TIMER_WDCFG 0x10
++#define TIMER_SYSVAL 0x14
++#define TIMER_SYSCOM(tmr) (0x18 + (tmr) * 4)
++#define TIMER_TRN_CFG 0x100
++#define TIMER_TRN 0x104
++
++#define TIMER_COUNT 10
++#define TIMER_INT(tmr) INT_CHIP(1, (tmr))
++#define TIMER_TKEYVAL 0xa1b2c3d4
++#define TIMER_WATCHDOG_DISABLE 0x4d3c2b1a
++#define TIMER_TRN_CFG_ENABLE_OSC 0x00000007
++
++#ifndef __ASSEMBLY__
++/*
++ * ubicom32_io_timer
++ */
++struct ubicom32_io_timer {
++	volatile u32_t mptval;
++	volatile u32_t rtcom;
++	volatile u32_t tkey;
++	volatile u32_t wdcom;
++	volatile u32_t wdcfg;
++	volatile u32_t sysval;
++	volatile u32_t syscom[TIMER_COUNT];
++	volatile u32_t reserved[64 - 6 - TIMER_COUNT];	// skip all the way to OCP-TRNG section
++	volatile u32_t rsgcfg;
++	volatile u32_t trn;
++};
++
++#define UBICOM32_IO_TIMER ((struct ubicom32_io_timer *)TIMER_BASE)
++#endif
++
++#define UBICOM32_VECTOR_TO_TIMER_INDEX(vector) (vector - TIMER_INT(0))
++
++/*
++ * OCP-Debug Module (Mailbox)
++ */
++#define ISD_MAILBOX_BASE (OCP_BASE + OCP_DEBUG)
++#define ISD_MAILBOX_IN 0x00
++#define ISD_MAILBOX_OUT 0x04
++#define ISD_MAILBOX_STATUS 0x08
++
++#define ISD_MAILBOX_INT INT_CHIP(1, 30)
++
++#define ISD_MAILBOX_STATUS_IN_FULL (1 << 31)
++#define ISD_MAILBOX_STATUS_IN_EMPTY (1 << 30)
++#define ISD_MAILBOX_STATUS_OUT_FULL (1 << 29)
++#define ISD_MAILBOX_STATUS_OUT_EMPTY (1 << 28)
++
++/*
++ * OCP-Security
++ */
++#define SECURITY_BASE (OCP_BASE + OCP_SECURITY)
++#define SECURITY_BASE_EFFECTIVE_ADDRESS (SECURITY_BASE >> 7) // To load the base address in a single instruction
++#define SECURITY_CTRL 0x00
++#define SECURITY_CTRL_BYTE_OFFSET(x) ((x) << 16)
++#define SECURITY_CTRL_KEY_SIZE(x) ((x) << 8)
++#define SECURITY_CTRL_HASH_ALG_NONE (0 << 4)
++#define SECURITY_CTRL_HASH_ALG_MD5 (1 << 4)
++#define SECURITY_CTRL_HASH_ALG_SHA1 (2 << 4)
++#define SECURITY_CTRL_CBC (1 << 3)
++#define SECURITY_CTRL_CIPHER_ALG_AES (0 << 1)
++#define SECURITY_CTRL_CIPHER_ALG_NONE (1 << 1)
++#define SECURITY_CTRL_CIPHER_ALG_DES (2 << 1)
++#define SECURITY_CTRL_CIPHER_ALG_3DES (3 << 1)
++#define SECURITY_CTRL_ENCIPHER (1 << 0)
++#define SECURITY_CTRL_DECIPHER (0 << 0)
++#define SECURITY_STAT 0x04
++#define SECURITY_STAT_BUSY (1 << 0)
++#define SECURITY_KEY_VALUE(x) (0x10 + (x) * 4)
++#define SECURITY_KEY_IN(x) (0x30 + (x) * 4)
++#define SECURITY_KEY_OUT(x) (0x50 + (x) * 4)
++#define SECURITY_KEY_HASH(x) (0x70 + (x) * 4)
++
++/*
++ * OCP-ICCR
++ */
++#define ICCR_BASE (OCP_BASE + OCP_ICCR)
++#define ICACHE_TOTAL_SIZE 16384			/* in bytes */
++
++/*
++ * OCP-DCCR
++ */
++#define DCCR_BASE (OCP_BASE + OCP_DCCR)
++#if defined(IP5000) || defined(IP5000_REV2)
++#define DCACHE_TOTAL_SIZE 8192			/* in bytes */
++#elif defined(IP7000) || defined(IP7000_REV2)
++#define DCACHE_TOTAL_SIZE 16384			/* in bytes */
++#endif
++
++#if defined(IP5000) || defined(IP5000_REV2) || defined(IP7000) || defined(IP7000_REV2)
++#define DCACHE_WRITE_QUEUE_LENGTH 6
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++#define CACHE_LINE_SIZE 32			/* in bytes */
++
++#define CCR_ADDR 0x00
++#define CCR_RDD 0x04
++#define CCR_WRD 0x08
++#define CCR_STAT 0x0c
++#define CCR_CTRL 0x10
++
++#define CCR_STAT_MCBE 0
++#define CCR_STAT_WIDEL 1			/* D-cache only */
++
++#define CCR_CTRL_DONE 0
++#define CCR_CTRL_RESET 2
++#define CCR_CTRL_VALID 3
++#define CCR_CTRL_RD_DATA (1 << 4)
++#define CCR_CTRL_RD_TAG (2 << 4)
++#define CCR_CTRL_WR_DATA (3 << 4)
++#define CCR_CTRL_WR_TAG (4 << 4)
++#define CCR_CTRL_INV_INDEX (5 << 4)
++#define CCR_CTRL_INV_ADDR (6 << 4)
++#define CCR_CTRL_FLUSH_INDEX (7 << 4)		/* D-cache only */
++#define CCR_CTRL_FLUSH_INV_INDEX (8 << 4)	/* D-cache only */
++#define CCR_CTRL_FLUSH_ADDR (9 << 4)		/* D-cache only */
++#define CCR_CTRL_FLUSH_INV_ADDR (10 << 4)	/* D-cache only */
++
++/*
++ * OCP-OCMC
++ */
++#define OCMC_BASE (OCP_BASE + OCP_OCMC)
++#define OCMC_BANK_MASK 0x00
++#define OCMC_BIST_CNTL 0x04	/* IP5000 only */
++#define OCMC_BIST_STAT 0x08	/* IP5000 only */
++
++#define OCMC_BANK_PROG(n) ((1<<(n))-1)
++
++#define OCMC_BIST_WRCK (1 << 7)
++#define OCMC_BIST_RESET (1 << 5)
++#define OCMC_BIST_SMART (1 << 4)
++#define OCMC_BIST_RUN (1 << 3)
++#define OCMC_BIST_REPAIR (1 << 2)
++
++#define OCMC_BIST_READY (1 << 3)
++#define OCMC_BIST_FAIL (1 << 2)
++
++/*
++ * OCP-STATISTICS
++ */
++#define STATISTICS_BASE (OCP_BASE + OCP_STATISTICS)
++#define STAT_COUNTER_CTRL(n) ((n)*8)
++#define STAT_COUNTER(n) ((n)*8 + 4)
++
++#define STAT_EVENT_MP_INST 0
++#define STAT_EVENT_OCM_ACCESS 4
++#define STAT_EVENT_OCM_REQ 5
++#define STAT_EVENT_IC_REQ_INVAL 13
++#define STAT_EVENT_IC_MISS_INVAL 14
++#define STAT_EVENT_IC_REQ_INVAL_NACK 15
++#define STAT_EVENT_IC_REQ_VAL 16
++#define STAT_EVENT_IC_MISS_VAL 17
++#define STAT_EVENT_IC_REQ_VAL_NACK 18
++#define STAT_EVENT_IC_MISS_Q 19
++#define STAT_EVENT_DC_RD_REQ 20
++#define STAT_EVENT_DC_RD_MISS 21
++#define STAT_EVENT_DC_WR_REQ 22
++#define STAT_EVENT_DC_WR_MISS 23
++#define STAT_EVENT_DC_MISS_Q 24
++#define STAT_EVENT_DC_WB_FULL 25
++#define STAT_EVENT_DC_REQ_NACK 26
++#define STAT_EVENT_DC_CORE_REQ 27
++#define STAT_EVENT_DC_MISS 28
++#define STAT_EVENT_DC_EVICT 29
++#define STAT_EVENT_TRUE 30
++#define STAT_EVENT_FALSE 31
++
++/*
++ * OCP_MTEST
++ */
++#define MTEST_BASE (OCP_BASE + OCP_MTEST)
++#define MTEST_ADDR 0x00
++#define MTEST_WR 0x04
++#define MTEST_RD 0x08
++#define MTEST_CTRL 0x0c
++
++/*
++ * OCP_MCFG (IP7000 only)
++ */
++#define MCFG_BASE (OCP_BASE + OCP_MCFG)
++#define MCFG_CTRL 0x00
++#define MCFG_WCFG 0x04
++#define MCFG_RCFG 0x08
++
++/*
++ * Port registers
++ */
++#define IO_BASE 0x02000000
++#define RA (IO_BASE + 0x00000000)
++#define RB (IO_BASE + 0x00001000)
++#define RC (IO_BASE + 0x00002000)
++#define RD (IO_BASE + 0x00003000)
++#define RE (IO_BASE + 0x00004000)
++#define RF (IO_BASE + 0x00005000)
++#define RG (IO_BASE + 0x00006000)
++#define RH (IO_BASE + 0x00007000)
++#define RI (IO_BASE + 0x00008000)
++#define RJ (IO_BASE + 0x00009000)
++#define RLATCH (IO_BASE + 0x00ff0000)	// For latched output only
++#define IO_PORT_BR_OFFSET 0x00000800
++
++/*
++ * General I/O Register Map (per port)
++ */
++#define IO_FUNC 0x00
++#define IO_GPIO_CTL 0x04
++#define IO_GPIO_OUT 0x08
++#define IO_GPIO_IN 0x0C
++#define IO_INT_STATUS 0x10
++#define IO_INT_MASK 0x14
++#define IO_INT_SET 0x18
++#define IO_INT_CLR 0x1C
++#define IO_TX_FIFO 0x20
++#define IO_TX_FIFO_HI 0x24
++#define IO_RX_FIFO 0x28
++#define IO_RX_FIFO_HI 0x2c
++#define IO_CTL0 0x30
++#define IO_CTL1 0x34
++#define IO_CTL2 0x38
++#define IO_STATUS0 0x3c
++#define IO_STATUS1 0x40
++#define IO_STATUS2 0x44
++#define IO_FIFO_WATER 0x48
++#define IO_FIFO_LEVEL 0x4c
++#define IO_GPIO_MASK 0x50
++
++#define IO_FUNC_FUNCTION_RESET(func) ((1 << ((func) - 1)) << 4)	/* Function 0 doesn't need reset */
++#define IO_FUNC_RX_FIFO (1 << 3)
++#define IO_FUNC_SELECT(func) ((func) << 0)
++
++/*
++ * External interrupt pins.
++ */
++#define EXT_INT_IO_BIT(pin) ((pin) + 5)	// Interrupt pin number -> I/O INT bit
++#define EXT_INT_RISING_EDGE(pin) (0x2 << (2*(pin) + 7))
++#define EXT_INT_FALLING_EDGE(pin) (0x1 << (2*(pin) + 7))
++
++/*
++ * Flash
++ */
++#define IO_XFL_BASE RA
++
++#define IO_XFL_INT_START (1 << 16)
++#define IO_XFL_INT_ERR (1 << 8)
++#define IO_XFL_INT_DONE (1 << 0)
++
++#define IO_XFL_CTL0_MASK (0xffe07fff)
++#define IO_XFL_CTL0_RD_CMD(cmd) (((cmd) & 0xff) << 24)
++#define IO_XFL_CTL0_RD_DUMMY(n) (((n) & 0x7) << 21)
++#define IO_XFL_CTL0_CLK_WIDTH(core_cycles) ((((core_cycles) + 1) & 0x7e) << 8)	/* must be even number */
++#define IO_XFL_CTL0_CE_WAIT(spi_cycles) (((spi_cycles) & 0x3f) << 2)
++#define IO_XFL_CTL0_MCB_LOCK (1 << 1)
++#define IO_XFL_CTL0_ENABLE (1 << 0)
++#define IO_XFL_CTL0_FAST_VALUE(div, wait) (IO_XFL_CTL0_RD_CMD(0xb) | IO_XFL_CTL0_RD_DUMMY(1) | IO_XFL_CTL0_CLK_WIDTH(div) | IO_XFL_CTL0_CE_WAIT(wait) | IO_XFL_CTL0_ENABLE)
++#define IO_XFL_CTL0_VALUE(div, wait) (IO_XFL_CTL0_RD_CMD(3) | IO_XFL_CTL0_CLK_WIDTH(div) | IO_XFL_CTL0_CE_WAIT(wait) | IO_XFL_CTL0_ENABLE)
++
++#define IO_XFL_CTL1_MASK (0xc0003fff)
++#define IO_XFL_CTL1_FC_INST(inst) (((inst) & 0x3) << 30)
++#define IO_XFL_CTL1_FC_DATA(n) (((n) & 0x3ff) << 4)
++#define IO_XFL_CTL1_FC_DUMMY(n) (((n) & 0x7) << 1)
++#define IO_XFL_CTL1_FC_ADDR (1 << 0)
++
++#define IO_XFL_CTL2_FC_CMD(cmd) (((cmd) & 0xff) << 24)
++#define IO_XFL_CTL2_FC_ADDR(addr) ((addr) & 0x00ffffff)	/* Only up to 24 bits */
++
++#define IO_XFL_STATUS0_MCB_ACTIVE (1 << 0)
++#define IO_XFL_STATUS0_IOPCS_ACTIVE (1 << 1)
++
++/*
++ * SDRAM
++ */
++#define IO_SDRAM_DATA_BASE RG
++#define IO_SDRAM_CNTL_BASE RH
++
++#define IO_SDRAM_CTRL0_EN_REF (1 << 0)
++
++/*
++ * Port function code (common fucntion codes for all I/O ports)
++ */
++#define IO_PORTX_FUNC_GPIO 0x00
++#define IO_PORTX_FUNC_XFL 0x01
++#define IO_PORTX_FUNC_PCI 0x01
++#define IO_PORTX_FUNC_SERDES 0x01
++#define IO_PORTX_FUNC_GMII 0x01
++#define IO_PORTX_FUNC_DDR 0x01
++#define IO_PORTX_FUNC_PCIX 0x01
++#define IO_PORTX_FUNC_USB2_0 0x01
++#define IO_PORTX_FUNC_GPIO_INT_CLK 0x02
++#define IO_PORTX_FUNC_PLIO 0x02
++#define IO_PORTX_FUNC_GPIO_INT 0x03
++#define IO_PORTX_FUNC_MII 0x03
++
++/*
++ * Port 0
++ */
++#define IO_PORT0_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT0_FUNC_XFL_INT_CLK IO_PORTX_FUNC_XFL	// Default mode after reset
++#define IO_PORT0_FUNC_GPIO_INT_CLK IO_PORTX_FUNC_GPIO_INT_CLK
++#define IO_PORT0_FUNC_GPIO_INT IO_PORTX_FUNC_GPIO_INT
++
++/*
++ * Port 1
++ */
++#define IO_PORT1_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT1_FUNC_PCI IO_PORTX_FUNC_PCI		// PCI control
++#define IO_PORT1_FUNC_MII IO_PORTX_FUNC_MII		// port 4 MII extension
++
++/*
++ * Port 2
++ */
++#define IO_PORT2_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT2_FUNC_PCI IO_PORTX_FUNC_PCI		// PCI data I/O
++#define IO_PORT2_FUNC_PLIO IO_PORTX_FUNC_PLIO		// Extended LM
++
++/*
++ * Port 3
++ */
++#define IO_PORT3_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT3_FUNC_SERDES IO_PORTX_FUNC_SERDES
++#define IO_PORT3_FUNC_PLIO IO_PORTX_FUNC_PLIO
++
++/*
++ * Port 4
++ */
++#define IO_PORT4_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT4_FUNC_SERDES IO_PORTX_FUNC_SERDES
++#define IO_PORT4_FUNC_PLIO IO_PORTX_FUNC_PLIO		// Extended LM
++#define IO_PORT4_FUNC_MII IO_PORTX_FUNC_MII
++
++/*
++ * Port 5
++ */
++#define IO_PORT5_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT5_FUNC_GMII IO_PORTX_FUNC_GMII
++
++/*
++ * Port 6
++ */
++#define IO_PORT6_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT6_FUNC_DDR IO_PORTX_FUNC_DDR
++
++/*
++ * Port 7
++ */
++#define IO_PORT7_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT7_FUNC_DDR IO_PORTX_FUNC_DDR
++
++/*
++ * Port 8
++ */
++#define IO_PORT8_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT8_FUNC_PCIX IO_PORTX_FUNC_PCIX
++#define IO_PORT8_FUNC_PLIO IO_PORTX_FUNC_PLIO		// Extended LM
++#define IO_PORT8_FUNC_MII IO_PORTX_FUNC_MII		// port 4 MII extension
++
++/*
++ * Port 9
++ */
++#define IO_PORT9_FUNC_USB2_0 IO_PORTX_FUNC_USB2_0
++
++/*
++ * FIFO
++ */
++#define IO_PORTX_INT_FIFO_TX_RESET (1 << 31)
++#define IO_PORTX_INT_FIFO_RX_RESET (1 << 30)
++#define IO_PORTX_INT_FIFO_TX_UF (1 << 15)
++#define IO_PORTX_INT_FIFO_TX_WM (1 << 14)
++#define IO_PORTX_INT_FIFO_RX_OF (1 << 13)
++#define IO_PORTX_INT_FIFO_RX_WM (1 << 12)
++
++#define IO_PORTX_FUNC_FIFO_TX_WM(n) ((n) << 16)
++#define IO_PORTX_FUNC_FIFO_RX_WM(n) ((n) << 0)
++
++/*
++ * MII
++ */
++#define IO_PORTX_INT_MII_TX_ERR_SEND (1 << 18)
++#define IO_PORTX_INT_MII_TX_HALT (1 << 17)
++#define IO_PORTX_INT_MII_TX_START (1 << 16)
++#define IO_PORTX_INT_MII_THRESHOLD (1 << 8)
++#define IO_PORTX_INT_MII_RX_EOP (1 << 7)
++#define IO_PORTX_INT_MII_RX_SFD (1 << 6)
++#define IO_PORTX_INT_MII_RX_ERR (1 << 5)
++#define IO_PORTX_INT_MII_TX_EOP (1 << 4)
++#define IO_PORTX_INT_MII_COL (1 << 3)
++#define IO_PORTX_INT_MII_CRS (1 << 2)
++#define IO_PORTX_INT_MII_ODD_NIB_ERR (1 << 1)
++#define IO_PORTX_INT_MII_FALSE_CARRIER (1 << 0)
++
++/*
++ * SerDes
++ */
++#define IO_PORTX_INT_SERDES_TXBUF_VALID (1 << 16)
++#define IO_PORTX_INT_SERDES_RXERR (1 << 7)
++#define IO_PORTX_INT_SERDES_RXEOP (1 << 6)
++#define IO_PORTX_INT_SERDES_SYND (1 << 5)
++#define IO_PORTX_INT_SERDES_TXBE (1 << 4)
++#define IO_PORTX_INT_SERDES_TXEOP (1 << 3)
++#define IO_PORTX_INT_SERDES_SXLP (1 << 2)
++#define IO_PORTX_INT_SERDES_RXBF (1 << 1)
++#define IO_PORTX_INT_SERDES_RXCRS (1 << 0)
++
++#ifndef __ASSEMBLY__
++struct ubicom32_io_port {
++	volatile u32_t function;
++	volatile u32_t gpio_ctl;
++	volatile u32_t gpio_out;
++	volatile u32_t gpio_in;
++	volatile u32_t int_status;
++	volatile u32_t int_mask;
++	volatile u32_t int_set;
++	volatile u32_t int_clr;
++	volatile u32_t tx_fifo;
++	volatile u32_t tx_fifo_hi;
++	volatile u32_t rx_fifo;
++	volatile u32_t rx_fifo_hi;
++	volatile u32_t ctl0;
++	volatile u32_t ctl1;
++	volatile u32_t ctl2;
++	volatile u32_t status0;
++	volatile u32_t status1;
++	volatile u32_t status2;
++	volatile u32_t fifo_watermark;
++	volatile u32_t fifo_level;
++	volatile u32_t gpio_mask;
++};
++
++#define UBICOM32_IO_PORT(port) ((struct ubicom32_io_port *)((port)))
++#endif
++
++#ifndef __ASSEMBLY__
++/*
++ * ubicom32_set_interrupt()
++ */
++extern inline void ubicom32_set_interrupt(u8_t interrupt)
++{
++	u32_t ibit = INT_BIT_MASK(interrupt);
++
++	if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) {
++		asm volatile (
++			"move.4		"D(INT_SET(INT_CHIP(0, 0)))", %0\n\t"
++			:
++			: "r" (ibit)
++		);
++
++		return;
++	}
++
++	asm volatile (
++		"move.4		"D(INT_SET(INT_CHIP(1, 0)))", %0\n\t"
++		:
++		: "r" (ibit)
++	);
++}
++
++/*
++ * ubicom32_clear_interrupt()
++ */
++extern inline void ubicom32_clear_interrupt(u8_t interrupt)
++{
++	u32_t ibit = INT_BIT_MASK(interrupt);
++
++	if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) {
++		asm volatile (
++			"move.4		"D(INT_CLR(INT_CHIP(0, 0)))", %0\n\t"
++			:
++			: "r" (ibit)
++		);
++
++		return;
++	}
++
++	asm volatile (
++		"move.4		"D(INT_CLR(INT_CHIP(1, 0)))", %0\n\t"
++		:
++		: "r" (ibit)
++	);
++}
++
++/*
++ * ubicom32_enable_interrupt()
++ */
++extern inline void ubicom32_enable_interrupt(u8_t interrupt)
++{
++	u32_t ibit = INT_BIT_MASK(interrupt);
++
++	if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) {
++		asm volatile (
++			"or.4		"D(INT_MASK(INT_CHIP(0, 0)))", "D(INT_MASK(INT_CHIP(0, 0)))", %0\n\t"
++			:
++			: "d" (ibit)
++		);
++
++		return;
++	}
++
++	asm volatile (
++		"or.4		"D(INT_MASK(INT_CHIP(1, 0)))", "D(INT_MASK(INT_CHIP(1, 0)))", %0\n\t"
++		:
++		: "d" (ibit)
++	);
++}
++
++/*
++ * ubicom32_disable_interrupt()
++ */
++extern inline void ubicom32_disable_interrupt(u8_t interrupt)
++{
++	u32_t ibit = ~INT_BIT_MASK(interrupt);
++
++	if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) {
++		asm volatile (
++			"and.4		"D(INT_MASK(INT_CHIP(0, 0)))", "D(INT_MASK(INT_CHIP(0, 0)))", %0\n\t"
++			:
++			: "d" (ibit)
++		);
++
++		return;
++	}
++
++	asm volatile (
++		"and.4		"D(INT_MASK(INT_CHIP(1, 0)))", "D(INT_MASK(INT_CHIP(1, 0)))", %0\n\t"
++		:
++		: "d" (ibit)
++	);
++}
++
++/*
++ * ubicom32_enable_global_interrupts()
++ */
++extern inline void ubicom32_enable_global_interrupts(void)
++{
++	asm volatile(
++		"bset		GLOBAL_CTRL, GLOBAL_CTRL, #%bit("D(GLOBAL_CTRL_INT_EN)")"
++	);
++}
++
++/*
++ * ubicom32_disable_global_interrupts()
++ */
++extern inline void ubicom32_disable_global_interrupts(void)
++{
++	asm volatile(
++		"bclr		GLOBAL_CTRL, GLOBAL_CTRL, #%bit("D(GLOBAL_CTRL_INT_EN)")"
++	);
++}
++
++/*
++ * ubicom32_get_reset_reason()
++ */
++extern inline u32_t ubicom32_get_reset_reason(void)
++{
++	return *(u32_t *)(GENERAL_CFG_BASE + GEN_RESET_REASON);
++}
++
++/*
++ * ubicom32_read_reg()
++ */
++extern inline u32_t ubicom32_read_reg(volatile void *reg)
++{
++	u32_t v;
++	asm volatile (
++		"move.4		%[dest], %[src]	\n\t"
++		: [dest] "=r" (v)
++		: [src] "m" (*(u32_t *)reg)
++	);
++	return v;
++}
++
++/*
++ * ubicom32_write_reg()
++ */
++extern inline void ubicom32_write_reg(volatile void *reg, u32_t v)
++{
++	asm volatile (
++		"move.4		%[dest], %[src]	\n\t"
++		:
++		: [src] "r" (v), [dest] "m" (*(u32_t *)reg)
++	);
++}
++
++#endif /* __ASSEMBLY__ */
++#endif /* _ASM_UBICOM32_IP5000_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ipcbuf.h
+@@ -0,0 +1,55 @@
++/*
++ * arch/ubicom32/include/asm/ipcbuf.h
++ *   Definition of ipc64_perm struct for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IPCBUF_H
++#define _ASM_UBICOM32_IPCBUF_H
++
++/*
++ * The user_ipc_perm structure for m68k architecture.
++ * Note extra padding because this structure is passed back and forth
++ * between kernel and user space.
++ *
++ * Pad space is left for:
++ * - 32-bit mode_t and seq
++ * - 2 miscellaneous 32-bit values
++ */
++struct ipc64_perm
++{
++	__kernel_key_t		key;
++	__kernel_uid32_t	uid;
++	__kernel_gid32_t	gid;
++	__kernel_uid32_t	cuid;
++	__kernel_gid32_t	cgid;
++	__kernel_mode_t		mode;
++	unsigned short		__pad1;
++	unsigned short		seq;
++	unsigned short		__pad2;
++	unsigned long		__unused1;
++	unsigned long		__unused2;
++};
++
++#endif /* _ASM_UBICOM32_IPCBUF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/irqflags.h
+@@ -0,0 +1,94 @@
++/*
++ * arch/ubicom32/include/asm/irqflags.h
++ *   Raw implementation of local IRQ functions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IRQFLAGS_H
++#define _ASM_UBICOM32_IRQFLAGS_H
++
++#include <linux/thread_info.h>
++#include <asm/ubicom32-common.h>
++#include <asm/smp.h>
++#include <asm/ldsr.h>
++
++#if defined(CONFIG_PREEMPT)
++#error Not supported by Ubicom32 irq handling, yet!
++#endif
++
++/*
++ * raw_local_irq_enable()
++ *	Enable interrupts for this thread.
++ */
++static inline void raw_local_irq_enable(void)
++{
++	ldsr_local_irq_enable();
++}
++
++/*
++ * raw_local_irq_disable()
++ *	Disable interrupts for this thread.
++ */
++static inline void raw_local_irq_disable(void)
++{
++	ldsr_local_irq_disable();
++}
++
++/*
++ * raw_local_save_flags()
++ *	Get the current IRQ state.
++ */
++#define raw_local_save_flags(flags) 		\
++do {						\
++	(flags) = ldsr_local_irq_is_disabled();	\
++} while (0)
++
++/*
++ * raw_local_irq_save()
++ *	Save the current interrupt state and disable interrupts.
++ */
++#define raw_local_irq_save(flags)		\
++do {						\
++	(flags) = ldsr_local_irq_save();	\
++} while (0)
++
++/*
++ * raw_local_irq_restore()
++ *	Restore the IRQ state back to flags.
++ */
++static inline void raw_local_irq_restore(unsigned long flags)
++{
++	ldsr_local_irq_restore(flags);
++}
++
++/*
++ * raw_irqs_disabled_flags()
++ *	Return true if the flags indicate that IRQ(s) are disabled.
++ */
++static inline int raw_irqs_disabled_flags(unsigned long flags)
++{
++	return (flags);
++}
++
++#endif /* _ASM_UBICOM32_IRQFLAGS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/irq.h
+@@ -0,0 +1,45 @@
++/*
++ * arch/ubicom32/include/asm/irq.h
++ *   IRQ definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IRQ_H
++#define _ASM_UBICOM32_IRQ_H
++
++#include <asm/irqflags.h>
++
++/*
++ * We setup the IRQS to cover the full range of interrupt registers in
++ * processor.
++ */
++#define NR_IRQS		64
++
++#define irq_canonicalize(irq) (irq)
++
++extern int irq_soft_alloc(unsigned int *soft);
++extern void ack_bad_irq(unsigned int irq);
++extern void do_IRQ(int irq, struct pt_regs *fp);
++
++#endif /* _ASM_UBICOM32_IRQ_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/irq_regs.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/irq_regs.h
++ *   Generic irq_regs.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IRQ_REGS_H
++#define _ASM_UBICOM32_IRQ_REGS_H
++
++#include <asm-generic/irq_regs.h>
++
++#endif /* _ASM_UBICOM32_IRQ_REGS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/Kbuild
+@@ -0,0 +1 @@
++include include/asm-generic/Kbuild.asm
+--- /dev/null
++++ b/arch/ubicom32/include/asm/kdebug.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/kdebug.h
++ *   Generic kdebug.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_KDEBUG_H
++#define _ASM_UBICOM32_KDEBUG_H
++
++#include <asm-generic/kdebug.h>
++
++#endif /* _ASM_UBICOM32_KDEBUG_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/kmap_types.h
+@@ -0,0 +1,48 @@
++/*
++ * arch/ubicom32/include/asm/kmap_types.h
++ *   Definition of km_type's for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_KMAP_TYPES_H
++#define _ASM_UBICOM32_KMAP_TYPES_H
++
++enum km_type {
++	KM_BOUNCE_READ,
++	KM_SKB_SUNRPC_DATA,
++	KM_SKB_DATA_SOFTIRQ,
++	KM_USER0,
++	KM_USER1,
++	KM_BIO_SRC_IRQ,
++	KM_BIO_DST_IRQ,
++	KM_PTE0,
++	KM_PTE1,
++	KM_IRQ0,
++	KM_IRQ1,
++	KM_SOFTIRQ0,
++	KM_SOFTIRQ1,
++	KM_TYPE_NR
++};
++
++#endif /* _ASM_UBICOM32_KMAP_TYPES_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ldsr.h
+@@ -0,0 +1,186 @@
++/*
++ * arch/ubicom32/include/asm/ldsr.h
++ *   Ubicom32 LDSR interface definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_LDSR_H
++#define _ASM_UBICOM32_LDSR_H
++
++#include <asm/ubicom32-common.h>
++#include <asm/types.h>
++#include <asm/thread.h>
++
++extern unsigned int ldsr_soft_irq_mask;
++
++/*
++ * ldsr_local_irq_is_disabled()
++ *	Test if interrupts are disabled for this thread?
++ */
++static inline int ldsr_local_irq_is_disabled(void)
++{
++	int ret;
++	thread_t self = thread_get_self();
++	unsigned int mask = (1 << self);
++
++	asm volatile (
++	"	and.4	%0, scratchpad1, %1	\n\t"
++		: "=r" (ret)
++		: "d" (mask)
++		: "cc"
++	);
++
++	/*
++	 *  We return a simple 1 == disabled, 0 == enabled
++	 *  losing which tid this is for, because Linux
++	 *  can restore interrupts on a different thread.
++	 */
++	return ret >> self;
++}
++
++/*
++ * ldsr_local_irq_save()
++ *	Get the current interrupt state and disable interrupts.
++ */
++static inline unsigned int ldsr_local_irq_save(void)
++{
++	int ret;
++	thread_t self = thread_get_self();
++	unsigned int mask = (1 << self);
++
++	/*
++	 * Ensure the compiler can not optimize out the code
++	 * (volatile) and that it does not "cache" values around
++	 * the interrupt state change (memory).  This ensures
++	 * that interrupt changes are treated as a critical
++	 * section.
++	 */
++	asm volatile (
++	"	and.4	%0, scratchpad1, %1		\n\t"
++	"	or.4	scratchpad1, scratchpad1, %1	\n\t"
++		: "=&r" (ret)
++		: "d" (mask)
++		: "cc", "memory"
++	);
++
++	/*
++	 *  We return a simple 1 == disabled, 0 == enabled
++	 *  losing which tid this is for, because Linux
++	 *  can restore interrupts on a different thread.
++	 */
++	return ret >> self;
++}
++
++/*
++ * ldsr_local_irq_restore()
++ * 	Restore this cpu's interrupt enable/disable state.
++ *
++ * Note: flags is either 0 or 1.
++ */
++static inline void ldsr_local_irq_restore(unsigned int flags)
++{
++	unsigned int temp;
++	thread_t self = thread_get_self();
++	unsigned int mask = (1 << self);
++	flags = (flags << self);
++
++	/*
++	 * Ensure the compiler can not optimize out the code
++	 * (volatile) and that it does not "cache" values around
++	 * the interrupt state change (memory).  This ensures
++	 * that interrupt changes are treated as a critical
++	 * section.
++	 *
++	 * Atomic change to our bit in scratchpad1 without
++	 * causing any temporary glitch in the value and
++	 * without effecting other values.  Also this uses
++	 * no branches so no penalties.
++	 */
++	asm volatile (
++	"	xor.4	%0, scratchpad1, %1		\n\t"
++	"	and.4	%0, %2, %0			\n\t"
++	"	xor.4	scratchpad1, scratchpad1, %0	\n\t"
++	"	move.4	int_set0, %3			\n\t"
++		: "=&d"(temp)
++		: "d"(flags), "r"(mask), "r"(ldsr_soft_irq_mask)
++		: "cc", "memory"
++	);
++}
++
++/*
++ * ldsr_local_irq_disable_interrupt()
++ * 	Disable ints for this thread.
++ */
++static inline void ldsr_local_irq_disable(void)
++{
++	unsigned int mask = (1 << thread_get_self());
++
++	/*
++	 * Ensure the compiler can not optimize out the code
++	 * (volatile) and that it does not "cache" values around
++	 * the interrupt state change (memory).  This ensures
++	 * that interrupt changes are treated as a critical
++	 * section.
++	 */
++	asm  volatile (
++	"	or.4	scratchpad1, scratchpad1, %0	\n\t"
++		:
++		: "d" (mask)
++		: "cc", "memory"
++	);
++}
++
++/*
++ * ldsr_local_irq_enable_interrupt
++ * 	Enable ints for this thread.
++ */
++static inline void ldsr_local_irq_enable(void)
++{
++	unsigned int mask = (1 << thread_get_self());
++
++	/*
++	 * Ensure the compiler can not optimize out the code
++	 * (volatile) and that it does not "cache" values around
++	 * the interrupt state change (memory).  This ensures
++	 * that interrupt changes are treated as a critical
++	 * section.
++	 */
++	asm volatile (
++	"	and.4	scratchpad1, scratchpad1, %0	\n\t"
++	"	move.4	int_set0, %1			\n\t"
++		:
++		: "d" (~mask), "r" (ldsr_soft_irq_mask)
++		: "cc", "memory"
++	);
++}
++
++extern void ldsr_init(void);
++extern void ldsr_set_trap_irq(unsigned int irq);
++extern void ldsr_mask_vector(unsigned int vector);
++extern void ldsr_unmask_vector(unsigned int vector);
++extern void ldsr_enable_vector(unsigned int vector);
++extern void ldsr_disable_vector(unsigned int vector);
++extern thread_t ldsr_get_threadid(void);
++
++#endif /* _ASM_UBICOM32_LDSR_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/linkage.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/linkage.h
++ *   Definition of Ubicom32 architecture specific linkage types.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_LINKAGE_H
++#define _ASM_UBICOM32_LINKAGE_H
++
++#define __ocm_text __section(.ocm_text)
++#define __ocm_data __section(.ocm_data)
++
++#endif	/* _ASM_UBICOM32_LINKAGE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/local.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/local.h
++ *   Generic local.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_LOCAL_H
++#define _ASM_UBICOM32_LOCAL_H
++
++#include <asm-generic/local.h>
++
++#endif /* _ASM_UBICOM32_LOCAL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/machdep.h
+@@ -0,0 +1,43 @@
++/*
++ * arch/ubicom32/include/asm/machdep.h
++ *   Machine dependent utility routines.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MACHDEP_H
++#define _ASM_UBICOM32_MACHDEP_H
++
++#include <linux/interrupt.h>
++
++/* Hardware clock functions */
++extern unsigned long hw_timer_offset(void);
++
++/* machine dependent power off functions */
++extern void (*mach_reset)(void);
++extern void (*mach_halt)(void);
++extern void (*mach_power_off)(void);
++
++extern void config_BSP(char *command, int len);
++
++#endif /* _ASM_UBICOM32_MACHDEP_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mc146818rtc.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/mc146818rtc.h
++ *   Generic mc146818rtc.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++/*
++ * Machine dependent access functions for RTC registers.
++ */
++#ifndef _ASM_UBICOM32_MC146818RTC_H
++#define _ASM_UBICOM32_MC146818RTC_H
++
++/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
++
++#endif /* _ASM_UBICOM32_MC146818RTC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mman.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/mman.h
++ *   Memory mapping definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MMAN_H
++#define _ASM_UBICOM32_MMAN_H
++
++#include <asm-generic/mman.h>
++
++#define MAP_GROWSDOWN	0x0100		/* stack-like segment */
++#define MAP_DENYWRITE	0x0800		/* ETXTBSY */
++#define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
++#define MAP_LOCKED	0x2000		/* pages are locked */
++#define MAP_NORESERVE	0x4000		/* don't check for reservations */
++#define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
++#define MAP_NONBLOCK	0x10000		/* do not block on IO */
++
++#define MCL_CURRENT	1		/* lock all current mappings */
++#define MCL_FUTURE	2		/* lock all future mappings */
++
++#endif /* _ASM_UBICOM32_MMAN_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mmu_context.h
+@@ -0,0 +1,60 @@
++/*
++ * arch/ubicom32/include/asm/mmu_context.h
++ *   MMU context definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004, Microtronix Datacom Ltd., All rights reserved.          
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_MMU_CONTEXT_H
++#define _ASM_UBICOM32_MMU_CONTEXT_H
++
++#include <asm/setup.h>
++#include <asm/page.h>
++#include <asm/pgalloc.h>
++
++static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
++{
++}
++
++extern inline int
++init_new_context(struct task_struct *tsk, struct mm_struct *mm)
++{
++	// mm->context = virt_to_phys(mm->pgd);
++	return(0);
++}
++
++#define destroy_context(mm)		do { } while(0)
++
++static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
++{
++}
++
++#define deactivate_mm(tsk,mm)	do { } while (0)
++
++extern inline void activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
++{
++}
++
++#endif /* _ASM_UBICOM32_MMU_CONTEXT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mmu.h
+@@ -0,0 +1,41 @@
++/*
++ * arch/ubicom32/include/asm/mmu.h
++ *   Definition of mm_context_t struct for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2002, David McCullough <davidm@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MMU_H
++#define _ASM_UBICOM32_MMU_H
++
++typedef struct {
++	struct vm_list_struct	*vmlist;
++	unsigned long		end_brk;
++#ifdef CONFIG_BINFMT_ELF_FDPIC
++	unsigned long	exec_fdpic_loadmap;
++	unsigned long	interp_fdpic_loadmap;
++#endif
++} mm_context_t;
++
++#endif /* _ASM_UBICOM32_MMU_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/module.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/module.h
++ *   Ubicom32 architecture specific module definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MODULE_H
++#define _ASM_UBICOM32_MODULE_H
++
++struct mod_arch_specific {
++	void *ocm_inst;
++	int ocm_inst_size;
++};
++
++#define Elf_Shdr Elf32_Shdr
++#define Elf_Sym Elf32_Sym
++#define Elf_Ehdr Elf32_Ehdr
++
++#define ARCH_PROC_MODULES_EXTRA(m,mod) \
++	seq_printf(m, " OCM(%d bytes @ 0x%p)", \
++		   (mod)->arch.ocm_inst_size, (mod)->arch.ocm_inst)
++
++#endif /* _ASM_UBICOM32_MODULE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/msgbuf.h
+@@ -0,0 +1,58 @@
++/*
++ * arch/ubicom32/include/asm/msgbuf.h
++ *   Definition of msqid64_ds struct for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MSGBUF_H
++#define _ASM_UBICOM32_MSGBUF_H
++
++/*
++ * The msqid64_ds structure for ubicom32 architecture.
++ * Note extra padding because this structure is passed back and forth
++ * between kernel and user space.
++ *
++ * Pad space is left for:
++ * - 64-bit time_t to solve y2038 problem
++ * - 2 miscellaneous 32-bit values
++ */
++
++struct msqid64_ds {
++	struct ipc64_perm msg_perm;
++	__kernel_time_t msg_stime;	/* last msgsnd time */
++	unsigned long	__unused1;
++	__kernel_time_t msg_rtime;	/* last msgrcv time */
++	unsigned long	__unused2;
++	__kernel_time_t msg_ctime;	/* last change time */
++	unsigned long	__unused3;
++	unsigned long  msg_cbytes;	/* current number of bytes on queue */
++	unsigned long  msg_qnum;	/* number of messages in queue */
++	unsigned long  msg_qbytes;	/* max number of bytes on queue */
++	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
++	__kernel_pid_t msg_lrpid;	/* last receive pid */
++	unsigned long  __unused4;
++	unsigned long  __unused5;
++};
++
++#endif /* _ASM_UBICOM32_MSGBUF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mutex.h
+@@ -0,0 +1,41 @@
++/*
++ * arch/ubicom32/include/asm/mutex.h
++ *   Generic mutex.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++/*
++ * Pull in the generic implementation for the mutex fastpath.
++ *
++ * TODO: implement optimized primitives instead, or leave the generic
++ * implementation in place, or pick the atomic_xchg() based generic
++ * implementation. (see asm-generic/mutex-xchg.h for details)
++ */
++
++#ifndef _ASM_UBICOM32_MUTEX_H
++#define _ASM_UBICOM32_MUTEX_H
++
++#include <asm-generic/mutex-dec.h>
++
++#endif /* _ASM_UBICOM32_MUTEX_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/namei.h
+@@ -0,0 +1,38 @@
++/*
++ * arch/ubicom32/include/asm/namei.h
++ *   Definition of __emul_prefix() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_NAMEI_H
++#define _ASM_UBICOM32_NAMEI_H
++
++/* This dummy routine maybe changed to something useful
++ * for /usr/gnemul/ emulation stuff.
++ * Look at asm-sparc/namei.h for details.
++ */
++
++#define __emul_prefix() NULL
++
++#endif /* _ASM_UBICOM32_NAMEI_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ocm-alloc.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/ocm-alloc.h
++ *   Ubicom32 architecture specific ocm definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_OCM_ALLOC_H
++#define _ASM_UBICOM32_OCM_ALLOC_H
++
++
++extern void *ocm_inst_alloc(size_t size, pid_t pid);
++extern int ocm_free(const void *ptr);
++extern int ocm_inst_free(const void *ptr);
++
++#endif /* _ASM_UBICOM32_OCM_ALLOC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ocm_size.h
+@@ -0,0 +1,2 @@
++#define APP_OCM_CODE_SIZE (0x3ffc2e00-0x3ffc0000)
++#define APP_OCM_DATA_SIZE (0x3ffd3500-0x3ffc8000)
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ocm_text.lds.inc
+@@ -0,0 +1,175 @@
++/*
++ * arch/ubicom32/include/asm/ocm_text.lds.inc
++ *	<TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++*(.text.do_csum)
++*(.text.tcp_packet)
++*(.text.ipt_do_table)
++*(.text.nf_conntrack_in)
++*(.text.ip_forward)
++*(.text.dev_queue_xmit)
++*(.text.netif_receive_skb)
++*(.text.ip_route_input)
++*(.text.ip_finish_output)
++*(.text.nf_iterate)
++*(.text.__hash_conntrack)
++*(.text.memset)
++*(.text.memcpy)
++*(.text.ip_rcv)
++*(.text.__nf_conntrack_find)
++*(.text.dev_hard_start_xmit)
++*(.text.vlan_dev_hard_start_xmit)
++*(.text.vlan_dev_hard_header)
++*(.text.__nf_ct_refresh_acct)
++*(.text.tcp_error)
++*(.text.pfifo_fast_enqueue)
++*(.text.ipv4_confirm)
++*(.text.ip_output)
++*(.text.neigh_connected_output)
++*(.text.nf_hook_slow)
++*(.text.nf_nat_packet)
++*(.text.local_bh_enable)
++*(.text.pfifo_fast_dequeue)
++*(.text.ubi32_eth_receive)
++*(.text.nf_nat_fn)
++*(.text.skb_checksum)
++*(.text.memmove)
++*(.text.ubi32_eth_tx_done)
++*(.text.eth_header)
++*(.text.skb_release_data)
++*(.text.nf_conntrack_find_get)
++*(.text.process_backlog)
++*(.text.vlan_skb_recv)
++*(.text.ip_rcv_finish)
++*(.text.__qdisc_run)
++*(.text.skb_push)
++*(.text.eth_type_trans)
++*(.text.__alloc_skb)
++*(.text.netif_rx)
++*(.text.nf_ip_checksum)
++*(.text.__skb_checksum_complete_head)
++*(.text.ipv4_conntrack_defrag)
++*(.text.tcp_pkt_to_tuple)
++*(.text.kfree)
++*(.text.tcp_manip_pkt)
++*(.text.skb_put)
++*(.text.nf_ct_get_tuple)
++*(.text.__kmalloc)
++*(.text.ubi32_eth_start_xmit)
++*(.text.free_block)
++*(.text.ipt_hook)
++*(.text.kmem_cache_free)
++*(.text.skb_pull_rcsum)
++*(.text.cache_alloc_refill)
++*(.text.skb_release_head_state)
++*(.text.manip_pkt)
++*(.text.ip_sabotage_in)
++*(.text.ip_forward_finish)
++*(.text.kmem_cache_alloc)
++*(.text.local_bh_disable)
++*(.text.ipv4_pkt_to_tuple)
++*(.text.inet_proto_csum_replace4)
++*(.text.__nf_ct_l4proto_find)
++*(.text.csum_partial)
++*(.text.neigh_resolve_output)
++*(.text.__kfree_skb)
++*(.text.kfree_skb)
++*(.text.__find_vlan_dev)
++*(.text.ldsr_ctxsw_thread)
++*(.text.__do_IRQ)
++*(.text.skb_pull)
++*(.text.ipv4_invert_tuple)
++*(.text.nf_ct_invert_tuplepr)
++*(.text.skb_make_writable)
++*(.text.ipv4_get_l4proto)
++*(.text.handle_IRQ_event)
++*(.text.net_rx_action)
++*(.text.__do_softirq)
++*(.text.nf_nat_in)
++*(.text.note_interrupt)
++*(.text.ipv4_conntrack_in)
++*(.text.dst_release)
++*(.text.tasklet_action)
++*(.text.nf_nat_out)
++*(.text.nf_ct_invert_tuple)
++*(.text.do_IRQ)
++*(.text.__tasklet_schedule)
++*(.text.__skb_checksum_complete)
++*(.text.ubi32_eth_interrupt)
++*(.text.dev_kfree_skb_any)
++*(.text.ret_from_interrupt_to_kernel)
++*(.text.preemptive_context_save)
++*(.text.irq_ack_vector)
++*(.text.update_wall_time)
++*(.text.ldsr_thread)
++*(.text.irq_exit)
++*(.text.ubi32_eth_do_tasklet)
++*(.text.__napi_schedule)
++*(.text.idle_cpu)
++*(.text.run_timer_softirq)
++*(.text.ldsr_mask_vector)
++*(.text.irq_enter)
++*(.text.ldsr_get_lsb)
++*(.text.ldsr_unmask_vector)
++*(.text.ip_fast_csum)
++*(.text.hrtimer_run_queues)
++*(.text.tcp_invert_tuple)
++*(.text.T___705)
++*(.text.run_posix_cpu_timers)
++*(.text.free_hot_cold_page)
++*(.text.lock_timer_base)
++*(.text.calc_delta_mine)
++*(.text.slab_destroy)
++*(.text.rcu_pending)
++*(.text.scheduler_tick)
++*(.text.hrtimer_run_pending)
++*(.text.do_softirq)
++*(.text.del_timer)
++*(.text.irq_end_vector)
++*(.text.pci_read_u32)
++*(.text.udivmodsi4)
++*(.text.memcmp)
++*(.text.memset)
++*(.text.__slab_alloc)
++*(.text.br_handle_frame)
++*(.text.br_fdb_update)
++*(.text.__br_fdb_get)
++*(.text.br_forward)
++*(.text.br_handle_frame_finish)
++*(.text.pci_write_u32)
++*(.text.kmem_freepages)
++*(.text.br_dev_queue_push_xmit)
++*(.text.ioread32)
++*(.text.next_zones_zonelist)
++*(.text.ubi32_pci_read_u32)
++*(.text.zone_watermark_ok)
++*(.text.__rmqueue_smallest)
++*(.text.ubi32_eth_napi_poll)
++*(.text.ubi32_pci_write_u32)
++*(.text.ubi32_pci_read_u32)
++*(.text._local_bh_enable)
++*(.text._local_bh_disable)
++*(.text.get_slab)
+--- /dev/null
++++ b/arch/ubicom32/include/asm/page.h
+@@ -0,0 +1,106 @@
++/*
++ * arch/ubicom32/include/asm/page.h
++ *   Memory page related operations and definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PAGE_H
++#define _ASM_UBICOM32_PAGE_H
++
++/* PAGE_SHIFT determines the page size */
++
++#define PAGE_SHIFT	12
++#define PAGE_SIZE	(1 << PAGE_SHIFT)
++#define PAGE_MASK	(~(PAGE_SIZE-1))
++
++#include <asm/setup.h>
++
++#ifndef __ASSEMBLY__
++
++#define get_user_page(vaddr)		__get_free_page(GFP_KERNEL)
++#define free_user_page(page, addr)	free_page(addr)
++
++#define clear_page(page)	memset((page), 0, PAGE_SIZE)
++#define copy_page(to,from)	memcpy((to), (from), PAGE_SIZE)
++
++#define clear_user_page(page, vaddr, pg)	clear_page(page)
++#define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)
++
++#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
++	alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
++#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
++
++/*
++ * These are used to make use of C type-checking..
++ */
++typedef struct { unsigned long pte; } pte_t;
++typedef struct { unsigned long pmd[16]; } pmd_t;
++typedef struct { unsigned long pgd; } pgd_t;
++typedef struct { unsigned long pgprot; } pgprot_t;
++typedef struct page *pgtable_t;
++
++#define pte_val(x)	((x).pte)
++#define pmd_val(x)	((&x)->pmd[0])
++#define pgd_val(x)	((x).pgd)
++#define pgprot_val(x)	((x).pgprot)
++
++#define __pte(x)	((pte_t) { (x) } )
++#define __pmd(x)	((pmd_t) { (x) } )
++#define __pgd(x)	((pgd_t) { (x) } )
++#define __pgprot(x)	((pgprot_t) { (x) } )
++
++extern unsigned long memory_start;
++extern unsigned long memory_end;
++
++#endif /* !__ASSEMBLY__ */
++
++#include <asm/page_offset.h>
++
++#define PAGE_OFFSET		(PAGE_OFFSET_RAW)
++
++#ifndef __ASSEMBLY__
++
++#define __pa(vaddr)		virt_to_phys((void *)(vaddr))
++#define __va(paddr)		phys_to_virt((unsigned long)(paddr))
++
++#define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)
++#define pfn_to_virt(pfn)	__va((pfn) << PAGE_SHIFT)
++
++#define virt_to_page(addr)	(mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
++#define page_to_virt(page)	((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
++
++#define pfn_to_page(pfn)	virt_to_page(pfn_to_virt(pfn))
++#define page_to_pfn(page)	virt_to_pfn(page_to_virt(page))
++#define pfn_valid(pfn)	        ((pfn) < max_mapnr)
++
++#define	virt_addr_valid(kaddr)	(((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
++				((void *)(kaddr) < (void *)memory_end))
++
++#endif /* __ASSEMBLY__ */
++
++#ifdef __KERNEL__
++#include <asm-generic/page.h>
++#endif
++
++#endif /* _ASM_UBICOM32_PAGE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/page_offset.h
+@@ -0,0 +1,35 @@
++/*
++ * arch/ubicom32/include/asm/page_offset.h
++ *   Definition of PAGE_OFFSET_RAW for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_PAGE_OFFSET_H
++#define _ASM_UBICOM32_PAGE_OFFSET_H
++
++/* This handles the memory map.. */
++#define	PAGE_OFFSET_RAW		0x3ffc0000
++
++#endif /* _ASM_UBICOM32_PAGE_OFFSET_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/param.h
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/include/asm/param.h
++ *   Definition of miscellaneous constants, including HZ.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PARAM_H
++#define _ASM_UBICOM32_PARAM_H
++
++#ifdef __KERNEL__
++#define HZ CONFIG_HZ
++#define	USER_HZ		HZ
++#define	CLOCKS_PER_SEC	(USER_HZ)
++#endif
++
++#ifndef HZ
++#define HZ	100
++#endif
++
++#define EXEC_PAGESIZE	4096
++
++#ifndef NOGROUP
++#define NOGROUP		(-1)
++#endif
++
++#define MAXHOSTNAMELEN	64	/* max length of hostname */
++
++#endif /* _ASM_UBICOM32_PARAM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/pci.h
+@@ -0,0 +1,210 @@
++/*
++ * arch/ubicom32/include/asm/pci.h
++ *   Definitions of PCI operations for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PCI_H
++#define _ASM_UBICOM32_PCI_H
++
++#include <asm/io.h>
++
++/* The PCI address space does equal the physical memory
++ * address space.  The networking and block device layers use
++ * this boolean for bounce buffer decisions.
++ */
++#define PCI_DMA_BUS_IS_PHYS	(1)
++
++
++
++/*
++ * Perform a master read/write to the PCI bus.
++ * These functions return a PCI_RESP_xxx code.
++ */
++extern u8 pci_read_u32(u8 pci_cmd, u32 address, u32 *data);
++extern u8 pci_write_u32(u8 pci_cmd, u32 address, u32 data);
++extern u8 pci_read_u16(u8 pci_cmd, u32 address, u16 *data);
++extern u8 pci_write_u16(u8 pci_cmd, u32 address, u16 data);
++extern u8 pci_read_u8(u8 pci_cmd, u32 address, u8 *data);
++extern u8 pci_write_u8(u8 pci_cmd, u32 address, u8 data);
++
++
++#define PCIBIOS_MIN_IO          0x100
++#define PCIBIOS_MIN_MEM         0x10000000
++
++#define pcibios_assign_all_busses()	0
++#define pcibios_scan_all_fns(a, b)	0
++extern void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
++	struct resource *res);
++
++extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
++	struct pci_bus_region *region);
++
++struct pci_sys_data;
++struct pci_bus;
++
++struct hw_pci {
++        struct list_head buses;
++        int             nr_controllers;
++        int             (*setup)(int nr, struct pci_sys_data *);
++        struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
++        void            (*preinit)(void);
++        void            (*postinit)(void);
++        u8              (*swizzle)(struct pci_dev *dev, u8 *pin);
++        int             (*map_irq)(struct pci_dev *dev, u8 slot, u8 pin);
++};
++
++/*
++ * Per-controller structure
++ */
++struct pci_sys_data {
++        struct list_head node;
++        int             busnr;          /* primary bus number                   */
++        u64             mem_offset;     /* bus->cpu memory mapping offset       */
++        unsigned long   io_offset;      /* bus->cpu IO mapping offset           */
++        struct pci_bus  *bus;           /* PCI bus                              */
++        struct resource *resource[3];   /* Primary PCI bus resources            */
++                                        /* Bridge swizzling                     */
++        u8              (*swizzle)(struct pci_dev *, u8 *);
++                                        /* IRQ mapping                          */
++        int             (*map_irq)(struct pci_dev *, u8, u8);
++        struct hw_pci   *hw;
++};
++
++static  inline struct resource *
++pcibios_select_root(struct pci_dev *pdev, struct resource *res)
++{
++        struct resource *root = NULL;
++
++        if (res->flags & IORESOURCE_IO)
++                root = &ioport_resource;
++        if (res->flags & IORESOURCE_MEM)
++                root = &iomem_resource;
++
++        return root;
++}
++
++static inline void pcibios_set_master(struct pci_dev *dev)
++{
++        /* No special bus mastering setup handling */
++}
++#define HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_SIZE 1
++#define HAVE_ARCH_PCI_SET_DMA_SEGMENT_BOUNDARY 1
++
++#ifdef CONFIG_PCI
++static inline void * pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
++                     dma_addr_t *dma_handle)
++{
++    void *vaddr = kmalloc(size, GFP_KERNEL);
++    if(vaddr != NULL) {
++        *dma_handle = virt_to_phys(vaddr);
++    }
++    return vaddr;
++}
++
++static  inline int pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask)
++{
++ 	return 1;
++}
++
++static  inline void pci_free_consistent(struct pci_dev *hwdev, size_t size,
++	void *cpu_addr, dma_addr_t dma_handle)
++{ 
++	kfree(cpu_addr);
++	return;
++}
++
++static inline dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr,
++	size_t size, int direction)
++{
++	 return virt_to_phys(ptr);
++}
++
++static inline void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
++	size_t size, int direction)
++{
++	 return;
++}
++
++static inline dma_addr_t
++pci_map_page(struct pci_dev *hwdev, struct page *page,
++             unsigned long offset, size_t size, int direction)
++{
++	 return pci_map_single(hwdev, page_address(page) + offset, size, (int)direction);
++}
++
++static inline void
++pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
++               size_t size, int direction)
++{
++	pci_unmap_single(hwdev, dma_address, size, direction);
++}
++
++static inline int
++pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
++           int nents, int direction)
++{
++        return nents; 
++}
++
++static inline void
++pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
++             int nents, int direction)
++{
++}
++
++static inline void
++pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg,
++                int nelems, int direction)
++{
++}
++
++static inline void
++pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg,
++                int nelems, int direction)
++{
++}
++
++static inline void
++pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle,
++                    size_t size, int direction)
++{
++}
++
++static inline void
++pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle,
++                    size_t size, int direction)
++{
++}
++
++static inline int
++pci_dma_mapping_error(struct pci_dev *hwdev, dma_addr_t dma_addr)
++{
++        return dma_addr == 0;
++}
++extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
++extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
++#endif
++
++#endif /* _ASM_UBICOM32_PCI_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/percpu.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/percpu.h
++ *   Generic percpu.h for the Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PERCPU_H
++#define _ASM_UBICOM32_PERCPU_H
++
++#include <asm-generic/percpu.h>
++
++#endif /* _ASM_UBICOM32_PERCPU_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/pgalloc.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/pgalloc.h
++ *   Page table allocation definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PGALLOC_H
++#define _ASM_UBICOM32_PGALLOC_H
++
++#include <linux/mm.h>
++#include <asm/setup.h>
++
++#define check_pgt_cache()	do { } while (0)
++
++#endif /* _ASM_UBICOM32_PGALLOC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/pgtable.h
+@@ -0,0 +1,124 @@
++/*
++ * arch/ubicom32/include/asm/pgtable.h
++ *   Ubicom32 pseudo page table definitions and operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004   Microtronix Datacom Ltd
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *   and various works, Alpha, ix86, M68K, Sparc, ...et al
++ */
++#ifndef _ASM_UBICOM32_PGTABLE_H
++#define _ASM_UBICOM32_PGTABLE_H
++
++#include <asm-generic/4level-fixup.h>
++
++//vic - this bit copied from m68knommu version
++#include <asm/setup.h>
++#include <asm/io.h>
++#include <linux/sched.h>
++
++typedef pte_t *pte_addr_t;
++
++#define pgd_present(pgd)     	(1)       /* pages are always present on NO_MM */
++#define pgd_none(pgd)		(0)
++#define pgd_bad(pgd)		(0)
++#define pgd_clear(pgdp)
++#define kern_addr_valid(addr) 	(1)
++#define	pmd_offset(a, b)	((void *)0)
++
++#define PAGE_NONE		__pgprot(0)    /* these mean nothing to NO_MM */
++#define PAGE_SHARED		__pgprot(0)    /* these mean nothing to NO_MM */
++#define PAGE_COPY		__pgprot(0)    /* these mean nothing to NO_MM */
++#define PAGE_READONLY		__pgprot(0)    /* these mean nothing to NO_MM */
++#define PAGE_KERNEL		__pgprot(0)    /* these mean nothing to NO_MM */
++//vic - this bit copied from m68knommu version
++
++extern void paging_init(void);
++#define swapper_pg_dir ((pgd_t *) 0)
++
++#define __swp_type(x)		(0)
++#define __swp_offset(x)		(0)
++#define __swp_entry(typ,off)	((swp_entry_t) { ((typ) | ((off) << 7)) })
++#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
++#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
++
++/*
++ * pgprot_noncached() is only for infiniband pci support, and a real
++ * implementation for RAM would be more complicated.
++ */
++#define pgprot_noncached(prot)	(prot)
++
++static inline int pte_file(pte_t pte) { return 0; }
++
++/*
++ * ZERO_PAGE is a global shared page that is always zero: used
++ * for zero-mapped memory areas etc..
++ */
++#define ZERO_PAGE(vaddr)	(virt_to_page(0))
++
++extern unsigned int kobjsize(const void *objp);
++extern int is_in_rom(unsigned long);
++
++/*
++ * No page table caches to initialise
++ */
++#define pgtable_cache_init()   do { } while (0)
++
++#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
++		remap_pfn_range(vma, vaddr, pfn, size, prot)
++
++extern inline void flush_cache_mm(struct mm_struct *mm)
++{
++}
++
++extern inline void flush_cache_range(struct mm_struct *mm,
++				     unsigned long start,
++				     unsigned long end)
++{
++}
++
++/* Push the page at kernel virtual address and clear the icache */
++extern inline void flush_page_to_ram (unsigned long address)
++{
++}
++
++/* Push n pages at kernel virtual address and clear the icache */
++extern inline void flush_pages_to_ram (unsigned long address, int n)
++{
++}
++
++/*
++ * All 32bit addresses are effectively valid for vmalloc...
++ * Sort of meaningless for non-VM targets.
++ */
++#define	VMALLOC_START	0
++#define	VMALLOC_END	0xffffffff
++
++#define arch_enter_lazy_mmu_mode()	do {} while (0)
++#define arch_leave_lazy_mmu_mode()	do {} while (0)
++#define arch_flush_lazy_mmu_mode()	do {} while (0)
++#define arch_enter_lazy_cpu_mode()	do {} while (0)
++#define arch_leave_lazy_cpu_mode()	do {} while (0)
++#define arch_flush_lazy_cpu_mode()	do {} while (0)
++
++#endif /* _ASM_UBICOM32_PGTABLE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/poll.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/poll.h
++ *   Ubicom32 specific poll() related flags definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_POLL_H
++#define _ASM_UBICOM32_POLL_H
++
++#define POLLWRNORM	POLLOUT
++#define POLLWRBAND	0x0100
++
++#include <asm-generic/poll.h>
++
++#endif /* _ASM_UBICOM32_POLL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/posix_types.h
+@@ -0,0 +1,93 @@
++/*
++ * arch/ubicom32/include/asm/posix_types.h
++ *   Ubicom32 architecture posix types.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004   Microtronix Datacom Ltd
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef __ARCH_UBICOM32_POSIX_TYPES_H
++#define __ARCH_UBICOM32_POSIX_TYPES_H
++
++/*
++ * This file is generally used by user-level software, so you need to
++ * be a little careful about namespace pollution etc.  Also, we cannot
++ * assume GCC is being used.
++ */
++
++typedef unsigned long	__kernel_ino_t;
++typedef unsigned short	__kernel_mode_t;
++typedef unsigned short	__kernel_nlink_t;
++typedef long		__kernel_off_t;
++typedef int		__kernel_pid_t;
++typedef unsigned short	__kernel_ipc_pid_t;
++typedef unsigned short	__kernel_uid_t;
++typedef unsigned short	__kernel_gid_t;
++typedef unsigned int	__kernel_size_t;
++typedef int		__kernel_ssize_t;
++typedef int		__kernel_ptrdiff_t;
++typedef long		__kernel_time_t;
++typedef long		__kernel_suseconds_t;
++typedef long		__kernel_clock_t;
++typedef int		__kernel_timer_t;
++typedef int		__kernel_clockid_t;
++typedef int		__kernel_daddr_t;
++typedef char *		__kernel_caddr_t;
++typedef unsigned short	__kernel_uid16_t;
++typedef unsigned short	__kernel_gid16_t;
++typedef unsigned int	__kernel_uid32_t;
++typedef unsigned int	__kernel_gid32_t;
++
++typedef unsigned short	__kernel_old_uid_t;
++typedef unsigned short	__kernel_old_gid_t;
++typedef unsigned short	__kernel_old_dev_t;
++
++#ifdef __GNUC__
++typedef long long	__kernel_loff_t;
++#endif
++
++typedef struct {
++#if defined(__KERNEL__) || defined(__USE_ALL)
++	int	val[2];
++#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
++	int	__val[2];
++#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
++} __kernel_fsid_t;
++
++#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
++
++#undef	__FD_SET
++#define	__FD_SET(d, set)	((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
++
++#undef	__FD_CLR
++#define	__FD_CLR(d, set)	((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
++
++#undef	__FD_ISSET
++#define	__FD_ISSET(d, set)	((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
++
++#undef	__FD_ZERO
++#define __FD_ZERO(fdsetp) (memset (fdsetp, 0, sizeof(*(fd_set *)fdsetp)))
++
++#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
++
++#endif
+--- /dev/null
++++ b/arch/ubicom32/include/asm/processor.h
+@@ -0,0 +1,163 @@
++/*
++ * arch/ubicom32/include/asm/processor.h
++ *   Thread related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1995 Hamish Macdonald
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_PROCESSOR_H
++#define _ASM_UBICOM32_PROCESSOR_H
++
++/*
++ * Default implementation of macro that returns current
++ * instruction pointer ("program counter").
++ */
++#define current_text_addr() ({ __label__ _l; _l: &&_l;})
++
++#include <linux/compiler.h>
++#include <linux/threads.h>
++#include <asm/types.h>
++#include <asm/segment.h>
++#include <asm/fpu.h>
++#include <asm/ptrace.h>
++#include <asm/current.h>
++#include <asm/thread_info.h>
++
++#if defined(CONFIG_UBICOM32_V3)
++	#define	CPU "IP5K"
++#endif
++#if defined(CONFIG_UBICOM32_V4)
++	#define	CPU "IP7K"
++#endif
++#ifndef CPU
++	#define	CPU "UNKNOWN"
++#endif
++
++/*
++ * User space process size: 1st byte beyond user address space.
++ */
++extern unsigned long memory_end;
++#define TASK_SIZE	(memory_end)
++
++/*
++ * This decides where the kernel will search for a free chunk of vm
++ * space during mmap's. We won't be using it
++ */
++#define TASK_UNMAPPED_BASE	0
++
++/*
++ * This is the structure where we are going to save callee-saved registers.
++ * A5 is the return address, A7 is the stack pointer, A6 is the frame
++ * pointer.  This is the frame that is created because of switch_to. This
++ * is not the frame due to interrupt preemption or because of syscall entry.
++ */
++
++struct thread_struct {
++	unsigned long  d10;		/* D10  */
++	unsigned long  d11;		/* D11  */
++	unsigned long  d12;		/* D12  */
++	unsigned long  d13;		/* D13  */
++	unsigned long  a1;		/* A1  */
++	unsigned long  a2;		/* A2  */
++	unsigned long  a5;		/* A5 return address. */
++	unsigned long  a6;		/* A6 */
++	unsigned long  sp;		/* A7 kernel stack pointer. */
++};
++
++#define INIT_THREAD  { \
++	0, 0, 0, 0, 0, 0, 0, 0, \
++	sizeof(init_stack) + (unsigned long) init_stack - 8, \
++}
++
++/*
++ * Do necessary setup to start up a newly executed thread.
++ *
++ * pass the data segment into user programs if it exists,
++ * it can't hurt anything as far as I can tell
++ */
++/*
++ * Do necessary setup to start up a newly executed thread.
++ */
++#define start_thread(regs, new_pc, new_sp)	 \
++	do {					 \
++		regs->pc = new_pc & ~3;		 \
++		regs->an[5] = new_pc & ~3;	 \
++		regs->an[7] = new_sp;		 \
++		regs->nesting_level = -1;	 \
++		regs->frame_type = UBICOM32_FRAME_TYPE_NEW_THREAD; \
++		regs->thread_type = NORMAL_THREAD; \
++	} while(0)
++
++/* Forward declaration, a strange C thing */
++struct task_struct;
++
++/* Free all resources held by a thread. */
++static inline void release_thread(struct task_struct *dead_task)
++{
++}
++
++/* Prepare to copy thread state - unlazy all lazy status */
++#define prepare_to_copy(tsk)	do { } while (0)
++
++extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
++
++/*
++ * Free current thread data structures etc..
++ */
++static inline void exit_thread(void)
++{
++}
++
++unsigned long thread_saved_pc(struct task_struct *tsk);
++unsigned long get_wchan(struct task_struct *p);
++
++#define	KSTK_EIP(tsk)	(tsk->thread.a5)
++#define	KSTK_ESP(tsk)	(tsk->thread.sp)
++
++#define cpu_relax()    barrier()
++
++extern void processor_init(void);
++extern unsigned int processor_timers(void);
++extern unsigned int processor_threads(void);
++extern unsigned int processor_frequency(void);
++extern int processor_interrupts(unsigned int *int0, unsigned int *int1);
++extern int processor_ocm(void **socm, void **eocm);
++extern int processor_dram(void **sdram, void **edram);
++
++#define THREAD_SIZE_LONGS      (THREAD_SIZE/sizeof(unsigned long))
++#define KSTK_TOP(info)                                                 \
++({                                                                     \
++       unsigned long *__ptr = (unsigned long *)(info);                 \
++       (unsigned long)(&__ptr[THREAD_SIZE_LONGS]);                     \
++})
++
++#define task_pt_regs(task)                                             \
++({                                                                     \
++       struct pt_regs *__regs__;                                       \
++       __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
++       __regs__ - 1;                                                   \
++})
++
++#endif	/* _ASM_UBICOM32_PROCESSOR_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ptrace.h
+@@ -0,0 +1,177 @@
++/*
++ * arch/ubicom32/include/asm/ptrace.h
++ *   Ubicom32 architecture ptrace support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PTRACE_H
++#define _ASM_UBICOM32_PTRACE_H
++
++#ifndef __ASSEMBLY__
++
++/*
++ * We use hard coded constants because this is shared with user
++ * space and the values are NOT allowed to change.  Only fields
++ * that are intended to be exposed get values.
++ */
++#define PT_D0           0
++#define PT_D1           4
++#define PT_D2           8
++#define PT_D3           12
++#define PT_D4           16
++#define PT_D5           20
++#define PT_D6           24
++#define PT_D7           28
++#define PT_D8           32
++#define PT_D9           36
++#define PT_D10          40
++#define PT_D11          44
++#define PT_D12          48
++#define PT_D13          52
++#define PT_D14          56
++#define PT_D15          60
++#define PT_A0           64
++#define PT_A1           68
++#define PT_A2           72
++#define PT_A3           76
++#define PT_A4           80
++#define PT_A5           84
++#define PT_A6           88
++#define PT_A7           92
++#define PT_SP           92
++#define PT_ACC0HI       96
++#define PT_ACC0LO       100
++#define PT_MAC_RC16     104
++#define PT_ACC1HI       108
++#define PT_ACC1LO       112
++#define PT_SOURCE3      116
++#define PT_INST_CNT     120
++#define PT_CSR          124
++#define PT_DUMMY_UNUSED 128
++#define PT_INT_MASK0    132
++#define PT_INT_MASK1    136
++#define PT_TRAP_CAUSE   140
++#define PT_PC           144
++#define PT_ORIGINAL_D0  148
++#define PT_FRAME_TYPE   152
++
++/*
++ * The following 'registers' are not registers at all but are used
++ * locate the relocated sections.
++ */
++#define PT_TEXT_ADDR		200
++#define PT_TEXT_END_ADDR	204
++#define PT_DATA_ADDR		208
++#define PT_EXEC_FDPIC_LOADMAP	212
++#define PT_INTERP_FDPIC_LOADMAP	216
++
++/*
++ * This struct defines the way the registers are stored on the
++ * stack during a system call.
++ */
++enum thread_type {
++	NORMAL_THREAD,
++	KERNEL_THREAD,
++};
++
++#define UBICOM32_FRAME_TYPE_SYSCALL	-1 /* System call frame */
++#define UBICOM32_FRAME_TYPE_INVALID	0 /* Invalid frame, no longer in use */
++#define UBICOM32_FRAME_TYPE_INTERRUPT	1 /* Interrupt frame */
++#define UBICOM32_FRAME_TYPE_TRAP	2 /* Trap frame */
++#define UBICOM32_FRAME_TYPE_SIGTRAMP	3 /* Signal trampoline frame. */
++#define UBICOM32_FRAME_TYPE_NEW_THREAD	4 /* New Thread. */
++
++struct pt_regs {
++	/*
++	 * Data Registers
++	 */
++	unsigned long dn[16];
++
++	/*
++	 * Address Registers
++	 */
++	unsigned long an[8];
++
++	/*
++	 * Per thread misc registers.
++	 */
++	unsigned long acc0[2];
++	unsigned long mac_rc16;
++	unsigned long acc1[2];
++	unsigned long source3;
++	unsigned long inst_cnt;
++	unsigned long csr;
++	unsigned long dummy_unused;
++	unsigned long int_mask0;
++	unsigned long int_mask1;
++	unsigned long trap_cause;
++	unsigned long pc;
++	unsigned long original_dn_0;
++
++	/*
++	 * Frame type. Syscall frames are -1. For other types look above.
++	 */
++	unsigned long frame_type;
++
++	/*
++	 * These fields are not exposed to ptrace.
++	 */
++	unsigned long previous_pc;
++	long nesting_level;		/* When the kernel in in user space this
++					 * will be -1. */
++	unsigned long thread_type;	/* This indicates if this is a kernel
++					 * thread. */
++};
++
++/*
++ * This is the extended stack used by signal handlers and the context
++ * switcher: it's pushed after the normal "struct pt_regs".
++ */
++struct switch_stack {
++	unsigned long  dummy;
++};
++
++#ifdef __KERNEL__
++
++/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
++#define PTRACE_GETREGS		12
++#define PTRACE_SETREGS		13
++
++#ifndef PS_S
++#define PS_S  (0x2000)
++#define PS_M  (0x1000)
++#endif
++
++extern  int __user_mode(unsigned long sp);
++
++#define user_mode(regs) (__user_mode((regs->an[7])))
++#define user_stack(regs) ((regs)->an[7])
++#define instruction_pointer(regs) ((regs)->pc)
++#define profile_pc(regs) instruction_pointer(regs)
++extern void show_regs(struct pt_regs *);
++#endif /* __KERNEL__ */
++
++#endif /* __ASSEMBLY__ */
++
++#endif /* _ASM_UBICOM32_PTRACE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/range-protect-asm.h
+@@ -0,0 +1,91 @@
++/*
++ * arch/ubicom32/include/asm/range-protect-asm.h
++ *   Assembly macros for enabling memory protection.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_RANGE_PROTECT_ASM_H
++#define _ASM_UBICOM32_RANGE_PROTECT_ASM_H
++
++#if defined(__ASSEMBLY__)
++
++#include <asm/thread-asm.h>
++
++/*
++ * You should only use the enable/disable ranges when you have the atomic lock,
++ * if you do not there will be problems.
++ */
++
++/*
++ * enable_kernel_ranges
++ *	Enable the kernel ranges (disabling protection) for thread,
++ *	where thread == (1 << thread number)
++ */
++.macro	enable_kernel_ranges thread
++#ifdef CONFIG_PROTECT_KERNEL
++	or.4	I_RANGE0_EN, I_RANGE0_EN, \thread	 /* Enable Range Register */
++	or.4	D_RANGE0_EN, D_RANGE0_EN, \thread
++	or.4	D_RANGE1_EN, D_RANGE1_EN, \thread
++#endif
++.endm
++
++/*
++ * enable_kernel_ranges_for_current
++ *	Enable the kernel ranges (disabling protection) for this thread
++ */
++.macro	enable_kernel_ranges_for_current scratch_reg
++#ifdef CONFIG_PROTECT_KERNEL
++	thread_get_self_mask \scratch_reg
++	enable_kernel_ranges \scratch_reg
++#endif
++.endm
++
++/*
++ * disable_kernel_ranges
++ *	Disables the kernel ranges (enabling protection) for thread
++ *	where thread == (1 << thread number)
++ */
++.macro	disable_kernel_ranges thread
++#ifdef CONFIG_PROTECT_KERNEL
++	not.4	\thread, \thread
++	and.4	I_RANGE0_EN, I_RANGE0_EN, \thread	 /* Disable Range Register */
++	and.4	D_RANGE0_EN, D_RANGE0_EN, \thread
++	and.4	D_RANGE1_EN, D_RANGE1_EN, \thread
++#endif
++.endm
++
++/*
++ * disable_kernel_ranges_for_current
++ *	Disable kernel ranges (enabling protection) for this thread
++ */
++.macro	disable_kernel_ranges_for_current scratch_reg
++#ifdef CONFIG_PROTECT_KERNEL
++	thread_get_self_mask \scratch_reg
++	disable_kernel_ranges \scratch_reg
++#endif
++.endm
++#endif
++
++#endif  /* _ASM_UBICOM32_RANGE_PROTECT_ASM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/range-protect.h
+@@ -0,0 +1,62 @@
++/*
++ * arch/ubicom32/include/asm/range-protect.h
++ *   Assembly macros declared in C for enabling memory protection.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_RANGE_PROTECT_H
++#define _ASM_UBICOM32_RANGE_PROTECT_H
++
++#if !defined(__ASSEMBLY__)
++#include <asm/thread.h>
++/*
++ * The following macros should be the identical to the ones in
++ * range-protect-asm.h
++ *
++ * You should only use the enable/disable ranges when you have the atomic lock,
++ * if you do not there will be problems.
++ */
++
++/*
++ * enable_kernel_ranges
++ *	Enable the kernel ranges (disabling protection) for thread,
++ *	where thread == (1 << thread number)
++ */
++asm (
++	".macro	enable_kernel_ranges thread			\n\t"
++#ifdef CONFIG_PROTECT_KERNEL
++	"	or.4	I_RANGE0_EN, I_RANGE0_EN, \\thread	\n\t" /* Enable Range Register */
++	"	or.4	D_RANGE0_EN, D_RANGE0_EN, \\thread	\n\t"
++	"	or.4	D_RANGE1_EN, D_RANGE1_EN, \\thread	\n\t"
++#endif
++	".endm							\n\t"
++);
++
++#else /* __ASSEMBLY__ */
++
++#include <asm/range-protect-asm.h>
++
++#endif
++#endif  /* _ASM_UBICOM32_RANGE_PROTECT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/resource.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/resource.h
++ *   Generic definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_RESOURCE_H
++#define _ASM_UBICOM32_RESOURCE_H
++
++#include <asm-generic/resource.h>
++
++#endif /* _ASM_UBICOM32_RESOURCE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ring_tio.h
+@@ -0,0 +1,42 @@
++/*
++ * arch/ubicom32/include/asm/ring_tio.h
++ *   Ubicom32 architecture Ring TIO definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_RING_TIO_H
++#define _ASM_UBICOM32_RING_TIO_H
++
++#include <asm/devtree.h>
++
++#define RING_TIO_NODE_VERSION	2
++
++/*
++ * Devtree node for ring
++ */
++struct ring_tio_node {
++	struct devtree_node	dn;
++
++	u32_t			version;
++	void			*regs;
++};
++
++extern void ring_tio_init(const char *node_name);
++
++#endif /* _ASM_UBICOM32_RING_TIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/scatterlist.h
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/include/asm/scatterlist.h
++ *   Definitions of struct scatterlist for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SCATTERLIST_H
++#define _ASM_UBICOM32_SCATTERLIST_H
++
++#include <linux/mm.h>
++#include <asm/types.h>
++
++struct scatterlist {
++#ifdef CONFIG_DEBUG_SG
++	unsigned long	sg_magic;
++#endif
++	unsigned long	page_link;
++	unsigned int	offset;
++	dma_addr_t	dma_address;
++	unsigned int	length;
++};
++
++#define sg_dma_address(sg)      ((sg)->dma_address)
++#define sg_dma_len(sg)          ((sg)->length)
++
++#define ISA_DMA_THRESHOLD	(0xffffffff)
++
++#endif /* _ASM_UBICOM32_SCATTERLIST_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sd_tio.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/sd_tio.h
++ *   SD TIO definitions
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_SD_TIO_H
++#define _ASM_UBICOM32_SD_TIO_H
++
++#include <asm/devtree.h>
++
++/*
++ * Devtree node for SD
++ */
++struct sd_tio_node {
++	struct devtree_node	dn;
++	void			*regs;
++};
++
++#endif /* _ASM_UBICOM32_SD_TIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sections.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/sections.h
++ *   Generic sections.h definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SECTIONS_H
++#define _ASM_UBICOM32_SECTIONS_H
++
++#include <asm-generic/sections.h>
++
++#endif /* _ASM_UBICOM32_SECTIONS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/segment.h
+@@ -0,0 +1,78 @@
++/*
++ * arch/ubicom32/include/asm/segment.h
++ *   Memory segment definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SEGMENT_H
++#define _ASM_UBICOM32_SEGMENT_H
++
++/* define constants */
++/* Address spaces (FC0-FC2) */
++#define USER_DATA     (1)
++#ifndef __USER_DS
++#define __USER_DS     (USER_DATA)
++#endif
++#define USER_PROGRAM  (2)
++#define SUPER_DATA    (5)
++#ifndef __KERNEL_DS
++#define __KERNEL_DS   (SUPER_DATA)
++#endif
++#define SUPER_PROGRAM (6)
++#define CPU_SPACE     (7)
++
++#ifndef __ASSEMBLY__
++
++typedef struct {
++	unsigned long seg;
++} mm_segment_t;
++
++#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })
++#define USER_DS		MAKE_MM_SEG(__USER_DS)
++#define KERNEL_DS	MAKE_MM_SEG(__KERNEL_DS)
++
++/*
++ * Get/set the SFC/DFC registers for MOVES instructions
++ */
++
++static inline mm_segment_t get_fs(void)
++{
++    return USER_DS;
++}
++
++static inline mm_segment_t get_ds(void)
++{
++    /* return the supervisor data space code */
++    return KERNEL_DS;
++}
++
++static inline void set_fs(mm_segment_t val)
++{
++}
++
++#define segment_eq(a,b)	((a).seg == (b).seg)
++
++#endif /* __ASSEMBLY__ */
++
++#endif /* _ASM_UBICOM32_SEGMENT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/semaphore.h
+@@ -0,0 +1,140 @@
++/*
++ * arch/ubicom32/include/asm/semaphore.h
++ *   Interrupt-safe semaphores for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (C) Copyright 1996 Linus Torvalds
++ * m68k version by Andreas Schwab
++ * Copyright (C) 2004   Microtronix Datacom Ltd
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SEMAPHORE_H
++#define _ASM_UBICOM32_SEMAPHORE_H
++
++#define RW_LOCK_BIAS		 0x01000000
++
++#ifndef __ASSEMBLY__
++
++#include <linux/linkage.h>
++#include <linux/wait.h>
++#include <linux/spinlock.h>
++#include <linux/rwsem.h>
++
++#include <asm/system.h>
++#include <asm/atomic.h>
++
++struct semaphore {
++	atomic_t count;
++	atomic_t waking;
++	wait_queue_head_t wait;
++};
++
++#define __SEMAPHORE_INITIALIZER(name, n)				\
++{									\
++	.count		= ATOMIC_INIT(n),				\
++	.waking		= ATOMIC_INIT(0),				\
++	.wait		= __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)	\
++}
++
++#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
++	struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
++
++#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
++#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
++
++static inline void sema_init (struct semaphore *sem, int val)
++{
++	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER(*sem, val);
++}
++
++static inline void init_MUTEX (struct semaphore *sem)
++{
++	sema_init(sem, 1);
++}
++
++static inline void init_MUTEX_LOCKED (struct semaphore *sem)
++{
++	sema_init(sem, 0);
++}
++
++asmlinkage void __down_failed(void /* special register calling convention */);
++asmlinkage int  __down_failed_interruptible(void  /* params in registers */);
++asmlinkage int  __down_failed_trylock(void  /* params in registers */);
++asmlinkage void __up_wakeup(void /* special register calling convention */);
++
++asmlinkage void __down(struct semaphore * sem);
++asmlinkage int  __down_interruptible(struct semaphore * sem);
++asmlinkage int  __down_trylock(struct semaphore * sem);
++asmlinkage void __up(struct semaphore * sem);
++
++extern spinlock_t semaphore_wake_lock;
++
++/*
++ * This is ugly, but we want the default case to fall through.
++ * "down_failed" is a special asm handler that calls the C
++ * routine that actually waits.
++ */
++static inline void down(struct semaphore * sem)
++{
++	might_sleep();
++
++	if (atomic_dec_return(&sem->count) < 0)
++		__down(sem);
++}
++
++static inline int down_interruptible(struct semaphore * sem)
++{
++	int ret = 0;
++
++
++	might_sleep();
++
++	if(atomic_dec_return(&sem->count) < 0)
++		ret = __down_interruptible(sem);
++	return ret;
++}
++
++static inline int down_trylock(struct semaphore * sem)
++{
++	int ret = 0;
++
++	if (atomic_dec_return (&sem->count) < 0)
++		ret = __down_trylock(sem);
++	return ret;
++}
++
++/*
++ * Note! This is subtle. We jump to wake people up only if
++ * the semaphore was negative (== somebody was waiting on it).
++ * The default case (no contention) will result in NO
++ * jumps for both down() and up().
++ */
++static inline void up(struct semaphore * sem)
++{
++	if (atomic_inc_return(&sem->count) <= 0)
++		__up(sem);
++}
++
++#endif /* __ASSEMBLY__ */
++
++#endif /* _ASM_UBICOM32_SEMAPHORE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/semaphore-helper.h
+@@ -0,0 +1,109 @@
++/*
++ * arch/ubicom32/include/asm/semaphore-helper.h
++ *   Semaphore related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SEMAPHORE_HELPER_H
++#define _ASM_UBICOM32_SEMAPHORE_HELPER_H
++
++/*
++ * SMP- and interrupt-safe semaphores helper functions.
++ *
++ * (C) Copyright 1996 Linus Torvalds
++ *
++ * m68k version by Andreas Schwab
++ */
++
++
++/*
++ * These two _must_ execute atomically wrt each other.
++ */
++static inline void wake_one_more(struct semaphore * sem)
++{
++	atomic_inc(&sem->waking);
++}
++
++static inline int waking_non_zero(struct semaphore *sem)
++{
++	int ret;
++	unsigned long flags;
++
++	spin_lock_irqsave(&semaphore_wake_lock, flags);
++	ret = 0;
++	if (atomic_read(&sem->waking) > 0) {
++		atomic_dec(&sem->waking);
++		ret = 1;
++	}
++	spin_unlock_irqrestore(&semaphore_wake_lock, flags);
++	return ret;
++}
++
++/*
++ * waking_non_zero_interruptible:
++ *	1	got the lock
++ *	0	go to sleep
++ *	-EINTR	interrupted
++ */
++static inline int waking_non_zero_interruptible(struct semaphore *sem,
++						struct task_struct *tsk)
++{
++	int ret;
++	unsigned long flags;
++
++	spin_lock_irqsave(&semaphore_wake_lock, flags);
++	ret = 0;
++	if (atomic_read(&sem->waking) > 0) {
++		atomic_dec(&sem->waking);
++		ret = 1;
++	} else if (signal_pending(tsk)) {
++		atomic_inc(&sem->count);
++		ret = -EINTR;
++	}
++	spin_unlock_irqrestore(&semaphore_wake_lock, flags);
++	return ret;
++}
++
++/*
++ * waking_non_zero_trylock:
++ *	1	failed to lock
++ *	0	got the lock
++ */
++static inline int waking_non_zero_trylock(struct semaphore *sem)
++{
++	int ret;
++	unsigned long flags;
++
++	spin_lock_irqsave(&semaphore_wake_lock, flags);
++	ret = 1;
++	if (atomic_read(&sem->waking) > 0) {
++		atomic_dec(&sem->waking);
++		ret = 0;
++	} else
++		atomic_inc(&sem->count);
++	spin_unlock_irqrestore(&semaphore_wake_lock, flags);
++	return ret;
++}
++
++#endif /* _ASM_UBICOM32_SEMAPHORE_HELPER_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sembuf.h
+@@ -0,0 +1,52 @@
++/*
++ * arch/ubicom32/include/asm/sembuf.h
++ *   The semid64_ds structure for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SEMBUF_H
++#define _ASM_UBICOM32_SEMBUF_H
++
++/*
++ * The semid64_ds structure for ubicom32 architecture.
++ * Note extra padding because this structure is passed back and forth
++ * between kernel and user space.
++ *
++ * Pad space is left for:
++ * - 64-bit time_t to solve y2038 problem
++ * - 2 miscellaneous 32-bit values
++ */
++
++struct semid64_ds {
++	struct ipc64_perm sem_perm;		/* permissions .. see ipc.h */
++	__kernel_time_t	sem_otime;		/* last semop time */
++	unsigned long	__unused1;
++	__kernel_time_t	sem_ctime;		/* last change time */
++	unsigned long	__unused2;
++	unsigned long	sem_nsems;		/* no. of semaphores in array */
++	unsigned long	__unused3;
++	unsigned long	__unused4;
++};
++
++#endif /* _ASM_UBICOM32_SEMBUF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/setup.h
+@@ -0,0 +1,35 @@
++/*
++ * arch/ubicom32/include/asm/setup.h
++ *   Kernel command line length definition.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004, Microtronix Datacom Ltd., All rights reserved.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_SETUP_H
++#define _ASM_UBICOM32_SETUP_H
++
++#define COMMAND_LINE_SIZE 512
++
++#endif /* _ASM_UBICOM32_SETUP_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/shmbuf.h
+@@ -0,0 +1,69 @@
++/*
++ * arch/ubicom32/include/asm/shmbuf.h
++ *   The shmid64_ds structure for the Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SHMBUF_H
++#define _ASM_UBICOM32_SHMBUF_H
++
++/*
++ * The shmid64_ds structure for m68k architecture.
++ * Note extra padding because this structure is passed back and forth
++ * between kernel and user space.
++ *
++ * Pad space is left for:
++ * - 64-bit time_t to solve y2038 problem
++ * - 2 miscellaneous 32-bit values
++ */
++
++struct shmid64_ds {
++	struct ipc64_perm	shm_perm;	/* operation perms */
++	size_t			shm_segsz;	/* size of segment (bytes) */
++	__kernel_time_t		shm_atime;	/* last attach time */
++	unsigned long		__unused1;
++	__kernel_time_t		shm_dtime;	/* last detach time */
++	unsigned long		__unused2;
++	__kernel_time_t		shm_ctime;	/* last change time */
++	unsigned long		__unused3;
++	__kernel_pid_t		shm_cpid;	/* pid of creator */
++	__kernel_pid_t		shm_lpid;	/* pid of last operator */
++	unsigned long		shm_nattch;	/* no. of current attaches */
++	unsigned long		__unused4;
++	unsigned long		__unused5;
++};
++
++struct shminfo64 {
++	unsigned long	shmmax;
++	unsigned long	shmmin;
++	unsigned long	shmmni;
++	unsigned long	shmseg;
++	unsigned long	shmall;
++	unsigned long	__unused1;
++	unsigned long	__unused2;
++	unsigned long	__unused3;
++	unsigned long	__unused4;
++};
++
++#endif /* _ASM_UBICOM32_SHMBUF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/shmparam.h
+@@ -0,0 +1,35 @@
++/*
++ * arch/ubicom32/include/asm/shmparam.h
++ *   Shared memory definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004   Microtronix Datacom Ltd
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *   Alpha, ix86, M68K, Sparc, ...et al
++ */
++#ifndef _ASM_UBICOM32_SHMPARAM_H
++#define _ASM_UBICOM32_SHMPARAM_H
++
++#define	SHMLBA		PAGE_SIZE	/* attach addr a multiple of this */
++
++#endif /* _ASM_UBICOM32_SHMPARAM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sigcontext.h
+@@ -0,0 +1,37 @@
++/*
++ * arch/ubicom32/include/asm/sigcontext.h
++ *   Definition of sigcontext struct for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SIGCONTEXT_H
++#define _ASM_UBICOM32_SIGCONTEXT_H
++
++#include <asm/ptrace.h>
++
++struct sigcontext {
++	struct pt_regs sc_regs;
++};
++
++#endif /* _ASM_UBICOM32_SIGCONTEXT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/siginfo.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/siginfo.h
++ *   Generic siginfo.h definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SIGINFO_H
++#define _ASM_UBICOM32_SIGINFO_H
++
++#include <asm-generic/siginfo.h>
++
++#endif /* _ASM_UBICOM32_SIGINFO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/signal.h
+@@ -0,0 +1,180 @@
++/*
++ * arch/ubicom32/include/asm/signal.h
++ *   Signal related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SIGNAL_H
++#define _ASM_UBICOM32_SIGNAL_H
++
++#include <linux/types.h>
++
++/* Avoid too many header ordering problems.  */
++struct siginfo;
++
++#ifdef __KERNEL__
++/* Most things should be clean enough to redefine this at will, if care
++   is taken to make libc match.  */
++
++#define _NSIG		64
++#define _NSIG_BPW	32
++#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
++
++typedef unsigned long old_sigset_t;		/* at least 32 bits */
++
++typedef struct {
++	unsigned long sig[_NSIG_WORDS];
++} sigset_t;
++
++#endif /* __KERNEL__ */
++
++#define SIGHUP		 1
++#define SIGINT		 2
++#define SIGQUIT		 3
++#define SIGILL		 4
++#define SIGTRAP		 5
++#define SIGABRT		 6
++#define SIGIOT		 6
++#define SIGBUS		 7
++#define SIGFPE		 8
++#define SIGKILL		 9
++#define SIGUSR1		10
++#define SIGSEGV		11
++#define SIGUSR2		12
++#define SIGPIPE		13
++#define SIGALRM		14
++#define SIGTERM		15
++#define SIGSTKFLT	16
++#define SIGCHLD		17
++#define SIGCONT		18
++#define SIGSTOP		19
++#define SIGTSTP		20
++#define SIGTTIN		21
++#define SIGTTOU		22
++#define SIGURG		23
++#define SIGXCPU		24
++#define SIGXFSZ		25
++#define SIGVTALRM	26
++#define SIGPROF		27
++#define SIGWINCH	28
++#define SIGIO		29
++#define SIGPOLL		SIGIO
++/*
++#define SIGLOST		29
++*/
++#define SIGPWR		30
++#define SIGSYS		31
++#define	SIGUNUSED	31
++
++/* These should not be considered constants from userland.  */
++#define SIGRTMIN	32
++#define SIGRTMAX	_NSIG
++
++/*
++ * SA_FLAGS values:
++ *
++ * SA_ONSTACK indicates that a registered stack_t will be used.
++ * SA_RESTART flag to get restarting signals (which were the default long ago)
++ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
++ * SA_RESETHAND clears the handler when the signal is delivered.
++ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
++ * SA_NODEFER prevents the current signal from being masked in the handler.
++ *
++ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
++ * Unix names RESETHAND and NODEFER respectively.
++ */
++#define SA_NOCLDSTOP	0x00000001
++#define SA_NOCLDWAIT	0x00000002
++#define SA_SIGINFO	0x00000004
++#define SA_ONSTACK	0x08000000
++#define SA_RESTART	0x10000000
++#define SA_NODEFER	0x40000000
++#define SA_RESETHAND	0x80000000
++
++#define SA_NOMASK	SA_NODEFER
++#define SA_ONESHOT	SA_RESETHAND
++
++/* 
++ * sigaltstack controls
++ */
++#define SS_ONSTACK	1
++#define SS_DISABLE	2
++
++#define MINSIGSTKSZ	2048
++#define SIGSTKSZ	8192
++
++#include <asm-generic/signal.h>
++
++#ifdef __KERNEL__
++struct old_sigaction {
++	__sighandler_t sa_handler;
++	old_sigset_t sa_mask;
++	unsigned long sa_flags;
++	void (*sa_restorer)(void);
++};
++
++struct sigaction {
++	__sighandler_t sa_handler;
++	unsigned long sa_flags;
++	void (*sa_restorer)(void);
++	sigset_t sa_mask;		/* mask last for extensibility */
++};
++
++struct k_sigaction {
++	struct sigaction sa;
++};
++#else
++/* Here we must cater to libcs that poke about in kernel headers.  */
++
++struct sigaction {
++	union {
++	  __sighandler_t _sa_handler;
++	  void (*_sa_sigaction)(int, struct siginfo *, void *);
++	} _u;
++	sigset_t sa_mask;
++	unsigned long sa_flags;
++	void (*sa_restorer)(void);
++};
++
++#define sa_handler	_u._sa_handler
++#define sa_sigaction	_u._sa_sigaction
++
++#endif /* __KERNEL__ */
++
++typedef struct sigaltstack {
++	void *ss_sp;
++	int ss_flags;
++	size_t ss_size;
++} stack_t;
++
++#ifdef __KERNEL__
++
++#include <asm/sigcontext.h>
++#undef __HAVE_ARCH_SIG_BITOPS
++
++#define ptrace_signal_deliver(regs, cookie) do { } while (0)
++
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_SIGNAL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/smp.h
+@@ -0,0 +1,83 @@
++/*
++ * arch/ubicom32/include/asm/smp.h
++ *   SMP definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SMP_H
++#define _ASM_UBICOM32_SMP_H
++
++#ifndef ASSEMBLY
++#include <linux/bitops.h>
++#include <linux/threads.h>
++#include <linux/cpumask.h>
++#include <asm/ip5000.h>
++
++typedef unsigned long address_t;
++extern cpumask_t cpu_online_map;
++extern unsigned int smp_ipi_irq;
++
++/*
++ * This magic constant controls our willingness to transfer
++ * a process across CPUs.
++ *
++ * Such a transfer incurs cache and tlb
++ * misses. The current value is inherited from i386. Still needs
++ * to be tuned for parisc.
++ */
++#define PROC_CHANGE_PENALTY	15		/* Schedule penalty */
++#define NO_PROC_ID		0xFF		/* No processor magic marker */
++#define ANY_PROC_ID		0xFF		/* Any processor magic marker */
++
++#ifdef CONFIG_SMP
++#define raw_smp_processor_id()	(current_thread_info()->cpu)
++#endif /* CONFIG_SMP */
++
++static inline int __cpu_disable (void)
++{
++  return 0;
++}
++
++static inline void __cpu_die (unsigned int cpu)
++{
++	while(1) {
++	};
++}
++
++extern int __cpu_up(unsigned int cpu);
++extern void smp_send_timer_all(void);
++extern void smp_timer_broadcast(cpumask_t mask);
++extern void smp_set_affinity(unsigned int irq, cpumask_t dest);
++extern void arch_send_call_function_single_ipi(int cpu);
++extern void arch_send_call_function_ipi(cpumask_t mask);
++
++/*
++ * TODO: Once these are fully tested, we should turn them into
++ * inline macros for performance.
++ */
++extern unsigned long smp_get_affinity(unsigned int irq, int *all);
++extern void smp_reset_ipi(unsigned long mask);
++
++#endif /* !ASSEMBLY */
++#endif /*  _ASM_UBICOM32_SMP_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/socket.h
+@@ -0,0 +1,84 @@
++/*
++ * arch/ubicom32/include/asm/socket.h
++ *   Socket options definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SOCKET_H
++#define _ASM_UBICOM32_SOCKET_H
++
++#include <asm/sockios.h>
++
++/* For setsockopt(2) */
++#define SOL_SOCKET	1
++
++#define SO_DEBUG	1
++#define SO_REUSEADDR	2
++#define SO_TYPE		3
++#define SO_ERROR	4
++#define SO_DONTROUTE	5
++#define SO_BROADCAST	6
++#define SO_SNDBUF	7
++#define SO_RCVBUF	8
++#define SO_SNDBUFFORCE	32
++#define SO_RCVBUFFORCE	33
++#define SO_KEEPALIVE	9
++#define SO_OOBINLINE	10
++#define SO_NO_CHECK	11
++#define SO_PRIORITY	12
++#define SO_LINGER	13
++#define SO_BSDCOMPAT	14
++/* To add :#define SO_REUSEPORT 15 */
++#define SO_PASSCRED	16
++#define SO_PEERCRED	17
++#define SO_RCVLOWAT	18
++#define SO_SNDLOWAT	19
++#define SO_RCVTIMEO	20
++#define SO_SNDTIMEO	21
++
++/* Security levels - as per NRL IPv6 - don't actually do anything */
++#define SO_SECURITY_AUTHENTICATION		22
++#define SO_SECURITY_ENCRYPTION_TRANSPORT	23
++#define SO_SECURITY_ENCRYPTION_NETWORK		24
++
++#define SO_BINDTODEVICE	25
++
++/* Socket filtering */
++#define SO_ATTACH_FILTER        26
++#define SO_DETACH_FILTER        27
++
++#define SO_PEERNAME             28
++#define SO_TIMESTAMP		29
++#define SCM_TIMESTAMP		SO_TIMESTAMP
++
++#define SO_ACCEPTCONN		30
++
++#define SO_PEERSEC              31
++#define SO_PASSSEC		34
++#define SO_TIMESTAMPNS		35
++#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
++
++#define SO_MARK			36
++
++#endif /* _ASM_UBICOM32_SOCKET_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sockios.h
+@@ -0,0 +1,40 @@
++/*
++ * arch/ubicom32/include/asm/sockios.h
++ *   Socket-level ioctl definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SOCKIOS_H
++#define _ASM_UBICOM32_SOCKIOS_H
++
++/* Socket-level I/O control calls. */
++#define FIOSETOWN	0x8901
++#define SIOCSPGRP	0x8902
++#define FIOGETOWN	0x8903
++#define SIOCGPGRP	0x8904
++#define SIOCATMARK	0x8905
++#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
++#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
++
++#endif /* _ASM_UBICOM32_SOCKIOS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/spinlock.h
+@@ -0,0 +1,293 @@
++/*
++ * arch/ubicom32/include/asm/spinlock.h
++ *   Spinlock related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SPINLOCK_H
++#define _ASM_UBICOM32_SPINLOCK_H
++
++#include <asm/system.h>
++#include <asm/processor.h>
++#include <asm/spinlock_types.h>
++
++/*
++ * __raw_spin_lock()
++ *	Lock the lock.
++ */
++static inline void __raw_spin_lock(raw_spinlock_t *x)
++{
++	asm volatile (
++	"1:	bset	%0, %0, #0	\n\t"
++	"	jmpne.f	1b		\n\t"
++		: "+U4" (x->lock)
++		:
++		: "memory", "cc"
++	);
++}
++
++/*
++ * __raw_spin_unlock()
++ *	Unlock the lock.
++ */
++static inline void __raw_spin_unlock(raw_spinlock_t *x)
++{
++	asm volatile (
++	"	bclr	%0, %0, #0	\n\t"
++		: "+U4" (x->lock)
++		:
++		: "memory", "cc"
++	);
++}
++
++/*
++ * __raw_spin_is_locked()
++ *	Test if the lock is locked.
++ */
++static inline int __raw_spin_is_locked(raw_spinlock_t *x)
++{
++	return x->lock;
++}
++
++/*
++ * __raw_spin_unlock_wait()
++ *	Wait for the lock to be unlocked.
++ *
++ * Note: the caller has not guarantee that the lock will not
++ * be acquired before they get to it.
++ */
++static inline void __raw_spin_unlock_wait(raw_spinlock_t *x)
++{
++	do { 
++		cpu_relax(); 
++	} while (__raw_spin_is_locked(x));
++}
++
++/*
++ * __raw_spin_trylock()
++ *	Try the lock, return 0 on failure, 1 on success.
++ */
++static inline int __raw_spin_trylock(raw_spinlock_t *x)
++{
++	int ret = 0;
++
++	asm volatile (
++	"	bset	%1, %1, #0	\n\t"
++	"	jmpne.f	1f		\n\t"
++	"	move.4	%0, #1		\n\t"
++	"1:				\n\t"
++		: "+r" (ret), "+U4" (x->lock)
++		:
++		: "memory", "cc"
++	);
++
++	return ret;
++}
++
++/*
++ * __raw_spin_lock_flags()
++ *	Spin waiting for the lock (enabling IRQ(s))
++ */
++static inline void __raw_spin_lock_flags(raw_spinlock_t *x, unsigned long flags)
++{
++	mb();
++	while (!__raw_spin_trylock(x)) {
++		/*
++		 * If the flags from the IRQ are set, interrupts are disabled and we 
++		 * need to re-enable them.
++		 */
++		if (!flags) {
++			cpu_relax();
++		} else {
++			raw_local_irq_enable();
++			cpu_relax();
++			raw_local_irq_disable();
++		}
++	}
++	mb();
++}
++
++/*
++ * Read-write spinlocks, allowing multiple readers but only one writer.
++ * Linux rwlocks are unfair to writers; they can be starved for an indefinite
++ * time by readers.  With care, they can also be taken in interrupt context.
++ *
++ * In Ubicom32 architecture implementation, we have a spinlock and a counter.
++ * Readers use the lock to serialise their access to the counter (which
++ * records how many readers currently hold the lock).
++ * Writers hold the spinlock, preventing any readers or other writers from
++ * grabbing the rwlock.
++ */
++
++/*
++ * __raw_read_lock()
++ *	Increment the counter in the rwlock.
++ *
++ * Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to grab the same read lock 
++ */
++static inline void __raw_read_lock(raw_rwlock_t *rw)
++{
++	unsigned long flags;
++	raw_local_irq_save(flags);
++	__raw_spin_lock_flags(&rw->lock, flags);
++	rw->counter++;
++	__raw_spin_unlock(&rw->lock);
++	raw_local_irq_restore(flags);
++}
++
++/*
++ * __raw_read_unlock()
++ *	Decrement the counter.
++ *
++ * Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to grab the same read lock 
++ */
++static inline void __raw_read_unlock(raw_rwlock_t *rw)
++{
++	unsigned long flags;
++	raw_local_irq_save(flags);
++	__raw_spin_lock_flags(&rw->lock, flags);
++	rw->counter--;
++	__raw_spin_unlock(&rw->lock);
++	raw_local_irq_restore(flags);
++}
++
++/* 
++ * __raw_read_trylock()
++ *	Increment the counter if we can.
++ *
++ * Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to grab the same read lock 
++ */
++static inline int __raw_read_trylock(raw_rwlock_t *rw)
++{
++	unsigned long flags;
++ retry:
++	raw_local_irq_save(flags);
++	if (__raw_spin_trylock(&rw->lock)) {
++		rw->counter++;
++		__raw_spin_unlock(&rw->lock);
++		raw_local_irq_restore(flags);
++		return 1;
++	}
++
++	raw_local_irq_restore(flags);
++
++	/* 
++	 * If write-locked, we fail to acquire the lock 
++	 */
++	if (rw->counter < 0) {
++		return 0;
++	}
++
++	/* 
++	 * Wait until we have a realistic chance at the lock 
++	 */
++	while (__raw_spin_is_locked(&rw->lock) && rw->counter >= 0) {
++		cpu_relax();
++	}
++
++	goto retry;
++}
++
++/*
++ * __raw_write_lock()
++ *	
++ * Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to read_trylock() this lock 
++ */
++static inline void __raw_write_lock(raw_rwlock_t *rw)
++{
++	unsigned long flags;
++retry:
++	raw_local_irq_save(flags);
++	__raw_spin_lock_flags(&rw->lock, flags);
++
++	if (rw->counter != 0) {
++		__raw_spin_unlock(&rw->lock);
++		raw_local_irq_restore(flags);
++
++		while (rw->counter != 0)
++			cpu_relax();
++
++		goto retry;
++	}
++
++	rw->counter = -1; /* mark as write-locked */
++	mb();
++	raw_local_irq_restore(flags);
++}
++
++static inline void __raw_write_unlock(raw_rwlock_t *rw)
++{
++	rw->counter = 0;
++	__raw_spin_unlock(&rw->lock);
++}
++
++/* Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to read_trylock() this lock */
++static inline int __raw_write_trylock(raw_rwlock_t *rw)
++{
++	unsigned long flags;
++	int result = 0;
++
++	raw_local_irq_save(flags);
++	if (__raw_spin_trylock(&rw->lock)) {
++		if (rw->counter == 0) {
++			rw->counter = -1;
++			result = 1;
++		} else {
++			/* Read-locked.  Oh well. */
++			__raw_spin_unlock(&rw->lock);
++		}
++	}
++	raw_local_irq_restore(flags);
++
++	return result;
++}
++
++/*
++ * read_can_lock - would read_trylock() succeed?
++ * @lock: the rwlock in question.
++ */
++static inline int __raw_read_can_lock(raw_rwlock_t *rw)
++{
++	return rw->counter >= 0;
++}
++
++/*
++ * write_can_lock - would write_trylock() succeed?
++ * @lock: the rwlock in question.
++ */
++static inline int __raw_write_can_lock(raw_rwlock_t *rw)
++{
++	return !rw->counter;
++}
++
++#define _raw_spin_relax(lock)	cpu_relax()
++#define _raw_read_relax(lock)	cpu_relax()
++#define _raw_write_relax(lock)	cpu_relax()
++
++#endif /* _ASM_UBICOM32_SPINLOCK_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/spinlock_types.h
+@@ -0,0 +1,43 @@
++/*
++ * arch/ubicom32/include/asm/spinlock_types.h
++ *   Spinlock related structure definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SPINLOCK_TYPES_H
++#define _ASM_UBICOM32_SPINLOCK_TYPES_H
++
++typedef struct {
++	volatile unsigned int lock;
++} raw_spinlock_t;
++
++typedef struct {
++	raw_spinlock_t lock;
++	volatile int counter;
++} raw_rwlock_t;
++
++#define __RAW_SPIN_LOCK_UNLOCKED	{ 0 }
++#define __RAW_RW_LOCK_UNLOCKED		{ __RAW_SPIN_LOCK_UNLOCKED, 0 }
++
++#endif /* _ASM_UBICOM32_SPINLOCK_TYPES_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/stacktrace.h
+@@ -0,0 +1,72 @@
++/*
++ * arch/ubicom32/include/asm/stacktrace.h
++ *   Stacktrace functions for the Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_STACKTRACE_H
++#define _ASM_UBICOM32_STACKTRACE_H
++
++#define between(a, b, c)	(( \
++			((unsigned long) a) >= ((unsigned long) b)) && \
++			(((unsigned long)a) <= ((unsigned long)c)))
++
++/*
++ * These symbols are filled in by the linker.
++ */
++extern unsigned long _stext;
++extern unsigned long _etext;
++
++/* OCM text goes from __ocm_text_run_begin to __data_begin */
++extern unsigned long __ocm_text_run_begin;
++extern unsigned long __data_begin;
++
++/* Account for OCM case - see stacktrace.c maybe combine(also trap.c) */
++/*
++ * ubicom32_is_kernel()
++ *
++ * 	Check to see if the given address belongs to the kernel.
++ * NOMMU does not permit any other means.
++ */
++static inline int ubicom32_is_kernel(unsigned long addr)
++{
++	int is_kernel = between(addr, &_stext, &_etext) || \
++			between(addr, &__ocm_text_run_begin, &__data_begin);
++
++#ifdef CONFIG_MODULES
++	if (!is_kernel)
++		is_kernel = is_module_address(addr);
++#endif
++	return is_kernel;
++}
++
++extern unsigned long stacktrace_iterate(
++				unsigned long **trace, 
++				unsigned long stext, unsigned long etext,
++				unsigned long ocm_stext, unsigned long ocm_etext, 
++				unsigned long sstack, unsigned long estack);
++#ifdef CONFIG_STACKTRACE
++void stacktrace_save_entries(struct task_struct *tsk, struct stack_trace *trace, unsigned long sp);
++#endif
++#endif /* _ASM_UBICOM32_STACKTRACE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/statfs.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/statfs.h
++ *   Generic statfs.h definitions
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_STATFS_H
++#define _ASM_UBICOM32_STATFS_H
++
++#include <asm-generic/statfs.h>
++
++#endif /* _ASM_UBICOM32_STATFS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/stat.h
+@@ -0,0 +1,104 @@
++/*
++ * arch/ubicom32/include/asm/stat.h
++ *   File status definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_STAT_H
++#define _ASM_UBICOM32_STAT_H
++
++struct __old_kernel_stat {
++	unsigned short st_dev;
++	unsigned short st_ino;
++	unsigned short st_mode;
++	unsigned short st_nlink;
++	unsigned short st_uid;
++	unsigned short st_gid;
++	unsigned short st_rdev;
++	unsigned long  st_size;
++	unsigned long  st_atime;
++	unsigned long  st_mtime;
++	unsigned long  st_ctime;
++};
++
++struct stat {
++	unsigned short st_dev;
++	unsigned short __pad1;
++	unsigned long  st_ino;
++	unsigned short st_mode;
++	unsigned short st_nlink;
++	unsigned short st_uid;
++	unsigned short st_gid;
++	unsigned short st_rdev;
++	unsigned short __pad2;
++	unsigned long  st_size;
++	unsigned long  st_blksize;
++	unsigned long  st_blocks;
++	unsigned long  st_atime;
++	unsigned long  __unused1;
++	unsigned long  st_mtime;
++	unsigned long  __unused2;
++	unsigned long  st_ctime;
++	unsigned long  __unused3;
++	unsigned long  __unused4;
++	unsigned long  __unused5;
++};
++
++/* This matches struct stat64 in glibc2.1, hence the absolutely
++ * insane amounts of padding around dev_t's.
++ */
++struct stat64 {
++	unsigned long long	st_dev;
++	unsigned char	__pad1[2];
++
++#define STAT64_HAS_BROKEN_ST_INO	1
++	unsigned long	__st_ino;
++
++	unsigned int	st_mode;
++	unsigned int	st_nlink;
++
++	unsigned long	st_uid;
++	unsigned long	st_gid;
++
++	unsigned long long	st_rdev;
++	unsigned char	__pad3[2];
++
++	long long	st_size;
++	unsigned long	st_blksize;
++
++	unsigned long long	st_blocks;	/* Number 512-byte blocks allocated. */
++
++	unsigned long	st_atime;
++	unsigned long	st_atime_nsec;
++
++	unsigned long	st_mtime;
++	unsigned long	st_mtime_nsec;
++
++	unsigned long	st_ctime;
++	unsigned long	st_ctime_nsec;
++
++	unsigned long long	st_ino;
++};
++
++#endif /* _ASM_UBICOM32_STAT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/string.h
+@@ -0,0 +1,37 @@
++/*
++ * arch/ubicom32/include/asm/string.h
++ *   String operation definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_STRING_H
++#define _ASM_UBICOM32_STRING_H
++
++#define __HAVE_ARCH_MEMSET
++extern void *memset(void *b, int c, size_t len);
++
++#define __HAVE_ARCH_MEMCPY
++extern void *memcpy(void *to, const void *from, size_t len);
++
++#endif /* _ASM_UBICOM32_STRING_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/switch-bcm539x.h
+@@ -0,0 +1,57 @@
++/*
++ * arch/ubicom32/include/asm/switch-bcm539x.h
++ *   Broadcom bcm539x platform data definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SWITCH_BCM539X_H
++#define _ASM_UBICOM32_SWITCH_BCM539X_H
++
++#define SWITCH_BCM539X_FLAG_HW_RESET	0x01
++#define SWITCH_BCM539X_FLAG_SW_RESET	0x02
++
++struct switch_bcm539x_platform_data {
++	/*
++	 * See flags above
++	 */
++	u32_t		flags;
++
++	/*
++	 * GPIO to use for nReset
++	 */
++	int		pin_reset;
++
++
++	/*
++	 * GPIO to use for chip select
++	 */
++	int		pin_cs;
++
++	/*
++	 * Name of this switch
++	 */
++	const char	*name;
++};
++
++#endif /* _ASM_UBICOM32_SWITCH_BCM539X_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/system.h
+@@ -0,0 +1,101 @@
++/*
++ * arch/ubicom32/include/asm/system.h
++ *   Low level switching definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SYSTEM_H
++#define _ASM_UBICOM32_SYSTEM_H
++
++#include <linux/irqflags.h>
++#include <linux/linkage.h>
++#include <asm/segment.h>
++#include <asm/entry.h>
++#include <asm/ldsr.h>
++#include <asm/irq.h>
++#include <asm/percpu.h>
++#include <asm/ubicom32-common.h>
++#include <asm/processor.h>
++
++/*
++ * switch_to(n) should switch tasks to task ptr, first checking that
++ * ptr isn't the current task, in which case it does nothing.
++ */
++asmlinkage void resume(void);
++extern void *__switch_to(struct task_struct *prev,
++		struct thread_struct *prev_switch,
++		struct thread_struct *next_switch);
++
++/*
++ * We will need a per linux thread sw_ksp for the switch_to macro to
++ * track the kernel stack pointer for the current thread on that linux thread.
++ */
++#define switch_to(prev,next,last)					\
++({									\
++	void *_last;							\
++	_last = (void *)						\
++		__switch_to(prev, &prev->thread, &next->thread);	\
++	(last) = _last;							\
++})
++
++/*
++ * Force strict CPU ordering.
++ * Not really required on ubicom32...
++ */
++#define nop()  asm volatile ("nop"::)
++#define mb()   asm volatile (""   : : :"memory")
++#define rmb()  asm volatile (""   : : :"memory")
++#define wmb()  asm volatile (""   : : :"memory")
++#define set_mb(var, value)	({ (var) = (value); wmb(); })
++
++#ifdef CONFIG_SMP
++#define smp_mb()	mb()
++#define smp_rmb()	rmb()
++#define smp_wmb()	wmb()
++#define smp_read_barrier_depends()	read_barrier_depends()
++#else
++#define smp_mb()	mb()
++#define smp_rmb()	rmb()
++#define smp_wmb()	wmb()
++#define smp_read_barrier_depends()	do { } while(0)
++#endif
++
++#define read_barrier_depends()  ((void)0)
++
++/*
++ * The following defines change how the scheduler calls the switch_to()
++ * macro.
++ *
++ * 1) The first causes the runqueue to be unlocked on entry to
++ * switch_to().  Since our ctx code does not play with the runqueue
++ * we do not need it unlocked.
++ *
++ * 2) The later turns interrupts on during a ctxsw to reduce the latency of
++ * interrupts during ctx.  At this point in the port, we believe that this
++ * latency is not a problem since we have very little code to perform a ctxsw.
++ */
++// #define __ARCH_WANT_UNLOCKED_CTXSW
++// #define __ARCH_WANT_INTERRUPTS_ON_CTXSW
++
++#endif /* _ASM_UBICOM32_SYSTEM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/termbits.h
+@@ -0,0 +1,227 @@
++/*
++ * arch/ubicom32/include/asm/termbits.h
++ *   Terminal/serial port definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TERMBITS_H
++#define _ASM_UBICOM32_TERMBITS_H
++
++#include <linux/posix_types.h>
++
++typedef unsigned char	cc_t;
++typedef unsigned int	speed_t;
++typedef unsigned int	tcflag_t;
++
++#define NCCS 19
++struct termios {
++	tcflag_t c_iflag;		/* input mode flags */
++	tcflag_t c_oflag;		/* output mode flags */
++	tcflag_t c_cflag;		/* control mode flags */
++	tcflag_t c_lflag;		/* local mode flags */
++	cc_t c_line;			/* line discipline */
++	cc_t c_cc[NCCS];		/* control characters */
++};
++
++struct termios2 {
++	tcflag_t c_iflag;		/* input mode flags */
++	tcflag_t c_oflag;		/* output mode flags */
++	tcflag_t c_cflag;		/* control mode flags */
++	tcflag_t c_lflag;		/* local mode flags */
++	cc_t c_line;			/* line discipline */
++	cc_t c_cc[NCCS];		/* control characters */
++	speed_t c_ispeed;		/* input speed */
++	speed_t c_ospeed;		/* output speed */
++};
++
++struct ktermios {
++	tcflag_t c_iflag;		/* input mode flags */
++	tcflag_t c_oflag;		/* output mode flags */
++	tcflag_t c_cflag;		/* control mode flags */
++	tcflag_t c_lflag;		/* local mode flags */
++	cc_t c_line;			/* line discipline */
++	cc_t c_cc[NCCS];		/* control characters */
++	speed_t c_ispeed;		/* input speed */
++	speed_t c_ospeed;		/* output speed */
++};
++
++/* c_cc characters */
++#define VINTR 0
++#define VQUIT 1
++#define VERASE 2
++#define VKILL 3
++#define VEOF 4
++#define VTIME 5
++#define VMIN 6
++#define VSWTC 7
++#define VSTART 8
++#define VSTOP 9
++#define VSUSP 10
++#define VEOL 11
++#define VREPRINT 12
++#define VDISCARD 13
++#define VWERASE 14
++#define VLNEXT 15
++#define VEOL2 16
++
++
++/* c_iflag bits */
++#define IGNBRK	0000001
++#define BRKINT	0000002
++#define IGNPAR	0000004
++#define PARMRK	0000010
++#define INPCK	0000020
++#define ISTRIP	0000040
++#define INLCR	0000100
++#define IGNCR	0000200
++#define ICRNL	0000400
++#define IUCLC	0001000
++#define IXON	0002000
++#define IXANY	0004000
++#define IXOFF	0010000
++#define IMAXBEL	0020000
++#define IUTF8	0040000
++
++/* c_oflag bits */
++#define OPOST	0000001
++#define OLCUC	0000002
++#define ONLCR	0000004
++#define OCRNL	0000010
++#define ONOCR	0000020
++#define ONLRET	0000040
++#define OFILL	0000100
++#define OFDEL	0000200
++#define NLDLY	0000400
++#define   NL0	0000000
++#define   NL1	0000400
++#define CRDLY	0003000
++#define   CR0	0000000
++#define   CR1	0001000
++#define   CR2	0002000
++#define   CR3	0003000
++#define TABDLY	0014000
++#define   TAB0	0000000
++#define   TAB1	0004000
++#define   TAB2	0010000
++#define   TAB3	0014000
++#define   XTABS	0014000
++#define BSDLY	0020000
++#define   BS0	0000000
++#define   BS1	0020000
++#define VTDLY	0040000
++#define   VT0	0000000
++#define   VT1	0040000
++#define FFDLY	0100000
++#define   FF0	0000000
++#define   FF1	0100000
++
++/* c_cflag bit meaning */
++#define CBAUD	0010017
++#define  B0	0000000		/* hang up */
++#define  B50	0000001
++#define  B75	0000002
++#define  B110	0000003
++#define  B134	0000004
++#define  B150	0000005
++#define  B200	0000006
++#define  B300	0000007
++#define  B600	0000010
++#define  B1200	0000011
++#define  B1800	0000012
++#define  B2400	0000013
++#define  B4800	0000014
++#define  B9600	0000015
++#define  B19200	0000016
++#define  B38400	0000017
++#define EXTA B19200
++#define EXTB B38400
++#define CSIZE	0000060
++#define   CS5	0000000
++#define   CS6	0000020
++#define   CS7	0000040
++#define   CS8	0000060
++#define CSTOPB	0000100
++#define CREAD	0000200
++#define PARENB	0000400
++#define PARODD	0001000
++#define HUPCL	0002000
++#define CLOCAL	0004000
++#define CBAUDEX 0010000
++#define    BOTHER 0010000
++#define    B57600 0010001
++#define   B115200 0010002
++#define   B230400 0010003
++#define   B460800 0010004
++#define   B500000 0010005
++#define   B576000 0010006
++#define   B921600 0010007
++#define  B1000000 0010010
++#define  B1152000 0010011
++#define  B1500000 0010012
++#define  B2000000 0010013
++#define  B2500000 0010014
++#define  B3000000 0010015
++#define  B3500000 0010016
++#define  B4000000 0010017
++#define CIBAUD	  002003600000		/* input baud rate */
++#define CMSPAR	  010000000000		/* mark or space (stick) parity */
++#define CRTSCTS	  020000000000		/* flow control */
++
++#define IBSHIFT	16			/* Shift from CBAUD to CIBAUD */
++
++/* c_lflag bits */
++#define ISIG	0000001
++#define ICANON	0000002
++#define XCASE	0000004
++#define ECHO	0000010
++#define ECHOE	0000020
++#define ECHOK	0000040
++#define ECHONL	0000100
++#define NOFLSH	0000200
++#define TOSTOP	0000400
++#define ECHOCTL	0001000
++#define ECHOPRT	0002000
++#define ECHOKE	0004000
++#define FLUSHO	0010000
++#define PENDIN	0040000
++#define IEXTEN	0100000
++
++
++/* tcflow() and TCXONC use these */
++#define	TCOOFF		0
++#define	TCOON		1
++#define	TCIOFF		2
++#define	TCION		3
++
++/* tcflush() and TCFLSH use these */
++#define	TCIFLUSH	0
++#define	TCOFLUSH	1
++#define	TCIOFLUSH	2
++
++/* tcsetattr uses these */
++#define	TCSANOW		0
++#define	TCSADRAIN	1
++#define	TCSAFLUSH	2
++
++#endif /* _ASM_UBICOM32_TERMBITS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/termios.h
+@@ -0,0 +1,119 @@
++/*
++ * arch/ubicom32/include/asm/termios.h
++ *   Ubicom32 termio definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TERMIOS_H
++#define _ASM_UBICOM32_TERMIOS_H
++
++#include <asm/termbits.h>
++#include <asm/ioctls.h>
++
++struct winsize {
++	unsigned short ws_row;
++	unsigned short ws_col;
++	unsigned short ws_xpixel;
++	unsigned short ws_ypixel;
++};
++
++#define NCC 8
++struct termio {
++	unsigned short c_iflag;		/* input mode flags */
++	unsigned short c_oflag;		/* output mode flags */
++	unsigned short c_cflag;		/* control mode flags */
++	unsigned short c_lflag;		/* local mode flags */
++	unsigned char c_line;		/* line discipline */
++	unsigned char c_cc[NCC];	/* control characters */
++};
++
++#ifdef __KERNEL__
++/*	intr=^C		quit=^|		erase=del	kill=^U
++	eof=^D		vtime=\0	vmin=\1		sxtc=\0
++	start=^Q	stop=^S		susp=^Z		eol=\0
++	reprint=^R	discard=^U	werase=^W	lnext=^V
++	eol2=\0
++*/
++#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
++#endif
++
++/* modem lines */
++#define TIOCM_LE	0x001
++#define TIOCM_DTR	0x002
++#define TIOCM_RTS	0x004
++#define TIOCM_ST	0x008
++#define TIOCM_SR	0x010
++#define TIOCM_CTS	0x020
++#define TIOCM_CAR	0x040
++#define TIOCM_RNG	0x080
++#define TIOCM_DSR	0x100
++#define TIOCM_CD	TIOCM_CAR
++#define TIOCM_RI	TIOCM_RNG
++#define TIOCM_OUT1	0x2000
++#define TIOCM_OUT2	0x4000
++#define TIOCM_LOOP	0x8000
++
++/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
++
++#ifdef __KERNEL__
++
++/*
++ * Translate a "termio" structure into a "termios". Ugh.
++ */
++#define user_termio_to_kernel_termios(termios, termio) \
++({ \
++	unsigned short tmp; \
++	get_user(tmp, &(termio)->c_iflag); \
++	(termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \
++	get_user(tmp, &(termio)->c_oflag); \
++	(termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \
++	get_user(tmp, &(termio)->c_cflag); \
++	(termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \
++	get_user(tmp, &(termio)->c_lflag); \
++	(termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
++	get_user((termios)->c_line, &(termio)->c_line); \
++	copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
++})
++
++/*
++ * Translate a "termios" structure into a "termio". Ugh.
++ */
++#define kernel_termios_to_user_termio(termio, termios) \
++({ \
++	put_user((termios)->c_iflag, &(termio)->c_iflag); \
++	put_user((termios)->c_oflag, &(termio)->c_oflag); \
++	put_user((termios)->c_cflag, &(termio)->c_cflag); \
++	put_user((termios)->c_lflag, &(termio)->c_lflag); \
++	put_user((termios)->c_line,  &(termio)->c_line); \
++	copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
++})
++
++#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
++#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
++#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
++#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
++
++#endif	/* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_TERMIOS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/thread-asm.h
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/include/asm/thread-asm.h
++ *   Ubicom32 architecture specific thread definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_THREAD_ASM_H
++#define _ASM_UBICOM32_THREAD_ASM_H
++
++/*
++ * thread_get_self
++ *	Read and shift the current thread into reg
++ */
++.macro	thread_get_self reg
++	lsr.4	\reg, ROSR, #2
++	and.4	\reg, #31, \reg	 /* Mask to get thread number into register */
++.endm
++
++/*
++ * thread_get_self_mask
++ *	Read and shift the current thread mask into reg
++ */
++.macro	thread_get_self_mask reg
++	lsr.4	\reg, ROSR, #2
++	lsl.4	\reg, #1, \reg	 /* Thread bit */
++.endm
++
++#endif /* _ASM_UBICOM32_THREAD_ASM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/thread.h
+@@ -0,0 +1,313 @@
++/*
++ * arch/ubicom32/include/asm/thread.h
++ *   Ubicom32 architecture specific thread definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_THREAD_H
++#define _ASM_UBICOM32_THREAD_H
++
++#if !defined(__ASSEMBLY__)
++
++#include <asm/ptrace.h>
++#include <asm/ubicom32-common.h>
++
++typedef int thread_t;
++typedef unsigned char thread_type_t;
++typedef void (*thread_exec_fn_t)(void *arg);
++
++#define THREAD_NULL 0x40
++#define THREAD_TYPE_HRT (1 << 0)
++#define THREAD_TYPE_SPECIAL 0
++#define THREAD_TYPE_NORMAL 0
++#define THREAD_TYPE_BACKGROUND (1 << 1)
++
++/*
++ * This is the upper bound on the maximum hardware threads that one will find
++ * on a Ubicom processor. It is used to size per hardware thread data structures.
++ */
++#define THREAD_ARCHITECTURAL_MAX 16
++
++/*
++ * TODO: Rename this at some point to be thread_
++ */
++extern unsigned int sw_ksp[THREAD_ARCHITECTURAL_MAX];
++
++
++/*
++ * thread_get_self()
++ */
++static inline thread_t thread_get_self(void)
++{
++	thread_t result;
++	asm (
++		"lsr.4	%0, ROSR, #2	\n\t"
++		: "=d" (result)
++		:
++		: "cc"
++	);
++	return result & 31;
++}
++
++/*
++ * thread_suspend()
++ */
++static inline void thread_suspend(void)
++{
++	asm volatile (
++		"suspend\n\t"
++		:
++		:
++	);
++}
++
++/*
++ * thread_resume()
++ */
++static inline void thread_resume(thread_t thread)
++{
++	asm volatile (
++		"move.4		MT_ACTIVE_SET, %0	\n\t"
++		"pipe_flush	0			\n\t"
++		"pipe_flush	0			\n\t"
++		:
++		: "d" (1 << thread)
++	);
++}
++
++
++
++/*
++ * thread_enable_mask()
++ *	Enable all threads in the mask.
++ *
++ * All writes to MT_EN must be protected by the MT_EN_LOCK bit
++ */
++static inline void thread_enable_mask(unsigned int mask)
++{
++	/*
++	 * must flush the pipeline twice.
++	 * first pipe_flush is to ensure write to MT_EN is completed
++	 * second one is to ensure any new instructions from
++	 * the targeted thread (the one being disabled), that
++	 * are issued while the write to MT_EN is being executed,
++	 * are completed.
++	 */
++	UBICOM32_LOCK(MT_EN_LOCK_BIT);
++	asm volatile (
++		"or.4		MT_EN, MT_EN, %0	\n\t"
++		"pipe_flush	0			\n\t"
++		"pipe_flush	0			\n\t"
++		:
++		: "d" (mask)
++		: "cc"
++	);
++	UBICOM32_UNLOCK(MT_EN_LOCK_BIT);
++}
++
++/*
++ * thread_enable()
++ */
++static inline void thread_enable(thread_t thread)
++{
++	thread_enable_mask(1 << thread);
++}
++
++/*
++ * thread_disable_mask()
++ *	Disable all threads in the mask.
++ *
++ * All writes to MT_EN must be protected by the MT_EN_LOCK bit
++ */
++static inline void thread_disable_mask(unsigned int mask)
++{
++	/*
++	 * must flush the pipeline twice.
++	 * first pipe_flush is to ensure write to MT_EN is completed
++	 * second one is to ensure any new instructions from
++	 * the targeted thread (the one being disabled), that
++	 * are issued while the write to MT_EN is being executed,
++	 * are completed.
++	 */
++	UBICOM32_LOCK(MT_EN_LOCK_BIT);
++	asm volatile (
++		"and.4		MT_EN, MT_EN, %0	\n\t"
++		"pipe_flush	0			\n\t"
++		"pipe_flush	0			\n\t"
++		:
++		: "d" (~mask)
++		: "cc"
++	);
++	UBICOM32_UNLOCK(MT_EN_LOCK_BIT);
++}
++
++/*
++ * thread_disable()
++ */
++static inline void thread_disable(thread_t thread)
++{
++	thread_disable_mask(1 << thread);
++}
++
++/*
++ * thread_disable_others()
++ *	Disable all other threads
++ */
++static inline void thread_disable_others(void)
++{
++	thread_t self = thread_get_self();
++	thread_disable_mask(~(1 << self));
++}
++
++/*
++ * thread_is_trapped()
++ *	Is the specified tid trapped?
++ */
++static inline int thread_is_trapped(thread_t tid)
++{
++	int thread_mask = (1 << tid);
++	int trap_thread;
++
++	asm (
++		"move.4		%0, MT_TRAP		\n\t"
++		: "=d" (trap_thread)
++		:
++	);
++	return (trap_thread & thread_mask);
++}
++
++/*
++ * thread_is_enabled()
++ *	Is the specified tid enabled?
++ */
++static inline int thread_is_enabled(thread_t tid)
++{
++	int thread_mask = (1 << tid);
++	int enabled_threads;
++
++	asm (
++		"move.4		%0, MT_EN		\n\t"
++		: "=d" (enabled_threads)
++		:
++	);
++	return (enabled_threads & thread_mask);
++}
++
++/*
++ * thread_get_instruction_count()
++ */
++static inline unsigned int thread_get_instruction_count(void)
++{
++	unsigned int result;
++	asm (
++		"move.4		%0, INST_CNT		\n\t"
++		: "=r" (result)
++	);
++	return result;
++}
++
++/*
++ * thread_get_pc()
++ *	pc could point to a speculative and cancelled instruction unless thread is disabled
++ */
++static inline void *thread_get_pc(thread_t thread)
++{
++	void *result;
++	asm (
++		"move.4		csr, %1		\n\t"
++		"setcsr_flush	0		\n\t"
++		"move.4		%0, pc		\n\t"
++		"move.4		csr, #0		\n\t"
++		"setcsr_flush	0		\n\t"
++		: "=r" (result)
++		: "r" ((thread << 9) | (1 << 8))
++	);
++	return result;
++}
++
++/*
++ * thread_get_trap_cause()
++ *	This should be called only when the thread is not running
++ */
++static inline unsigned int thread_get_trap_cause(thread_t thread)
++{
++	unsigned int result;
++	asm (
++		"move.4		csr, %1		\n\t"
++		"setcsr_flush	0		\n\t"
++		"move.4		%0, trap_cause	\n\t"
++		"move.4		csr, #0		\n\t"
++		"setcsr_flush	0		\n\t"
++		: "=r" (result)
++		: "r" ((thread << 9) | (1 << 8))
++	);
++	return result;
++}
++
++/*
++ * THREAD_STALL macro.
++ */
++#define THREAD_STALL \
++		asm volatile ( \
++			"move.4	mt_dbg_active_clr, #-1	\n\t" \
++			"pipe_flush 0			\n\t" \
++			: \
++			: \
++		)
++
++extern unsigned int thread_get_mainline(void);
++extern void thread_set_mainline(thread_t tid);
++extern thread_t thread_alloc(void);
++extern thread_t thread_start(thread_t thread, thread_exec_fn_t exec, void *arg, unsigned int *sp_high, thread_type_t type);
++
++/*
++ * asm macros
++ */
++asm (
++/*
++ * thread_get_self
++ *	Read and shift the current thread into reg
++ */
++".macro	thread_get_self reg		\n\t"
++"	lsr.4	\\reg, ROSR, #2		\n\t"
++"	and.4	\\reg, #31, \\reg	\n\t"/* Mask to get thread number into
++					      * register */
++".endm					\n\t"
++
++/*
++ * thread_get_self_mask
++ *	Read and shift the current thread mask into reg
++ */
++".macro	thread_get_self_mask reg	\n\t"
++"	lsr.4	\\reg, ROSR, #2		\n\t"
++"	lsl.4	\\reg, #1, \\reg	\n\t"	 /* Thread bit */
++".endm					\n\t"
++	);
++
++#else /* __ASSEMBLY__ */
++
++#include <asm/thread-asm.h>
++
++#endif /* __ASSEMBLY__ */
++#endif /* _ASM_UBICOM32_THREAD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/thread_info.h
+@@ -0,0 +1,134 @@
++/*
++ * arch/ubicom32/include/asm/thread_info.h
++ *   Ubicom32 architecture low-level thread information.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Adapted from the i386 and PPC versions by Greg Ungerer (gerg@snapgear.com)
++ * Copyright (C) 2002  David Howells (dhowells@redhat.com)
++ * - Incorporating suggestions made by Linus Torvalds and Dave Miller
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_THREAD_INFO_H
++#define _ASM_UBICOM32_THREAD_INFO_H
++
++#include <asm/page.h>
++
++/*
++ * Size of kernel stack for each process. This must be a power of 2...
++ */
++#ifdef CONFIG_4KSTACKS
++#define THREAD_SIZE_ORDER (0)
++#else
++#define THREAD_SIZE_ORDER (1)
++#endif
++
++/*
++ * for asm files, THREAD_SIZE is now generated by asm-offsets.c
++ */
++#define THREAD_SIZE (PAGE_SIZE<<THREAD_SIZE_ORDER)
++
++#ifdef __KERNEL__
++
++#ifndef __ASSEMBLY__
++
++/*
++ * low level task data.
++ */
++struct thread_info {
++	struct task_struct *task;		/* main task structure */
++	struct exec_domain *exec_domain;	/* execution domain */
++	unsigned long	   flags;		/* low level flags */
++	int		   cpu;			/* cpu we're on */
++	int		   preempt_count;	/* 0 => preemptable, <0 => BUG */
++	int		   interrupt_nesting; 	/* Interrupt nesting level. */
++	struct restart_block restart_block;
++};
++
++/*
++ * macros/functions for gaining access to the thread information structure
++ */
++#define INIT_THREAD_INFO(tsk)			\
++{						\
++	.task		= &tsk,			\
++	.exec_domain	= &default_exec_domain,	\
++	.flags		= 0,			\
++	.cpu		= 0,			\
++	.interrupt_nesting	= 0,		\
++	.restart_block	= {			\
++		.fn = do_no_restart_syscall,	\
++	},					\
++}
++
++#define init_thread_info	(init_thread_union.thread_info)
++#define init_stack		(init_thread_union.stack)
++
++
++/* how to get the thread information struct from C */
++static inline struct thread_info *current_thread_info(void)
++{
++	struct thread_info *ti;
++
++	asm (
++		"and.4	%0, sp, %1\n\t"
++		: "=&r" (ti)
++		: "d" (~(THREAD_SIZE-1))
++		: "cc"
++	);
++
++	return ti;
++}
++
++#define STACK_WARN (THREAD_SIZE / 8)
++
++#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR 1
++
++/* thread information allocation */
++#define alloc_thread_info(tsk) ((struct thread_info *) \
++				__get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER))
++#define free_thread_info(ti)	free_pages((unsigned long) (ti), THREAD_SIZE_ORDER)
++#endif /* __ASSEMBLY__ */
++
++#define	PREEMPT_ACTIVE	0x4000000
++
++/*
++ * thread information flag bit numbers
++ */
++#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
++#define TIF_SIGPENDING		1	/* signal pending */
++#define TIF_NEED_RESCHED	2	/* rescheduling necessary */
++#define TIF_POLLING_NRFLAG	3	/* true if poll_idle() is polling
++					   TIF_NEED_RESCHED */
++#define TIF_MEMDIE		4
++
++/* as above, but as bit values */
++#define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
++#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
++#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
++#define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
++
++#define _TIF_WORK_MASK		0x0000FFFE	/* work to do on interrupt/exception return */
++
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_THREAD_INFO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/timex.h
+@@ -0,0 +1,56 @@
++/*
++ * arch/ubicom32/include/asm/timex.h
++ *   Ubicom32 architecture timex specifications.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TIMEX_H
++#define _ASM_UBICOM32_TIMEX_H
++
++#define CLOCK_TICK_RATE	266000000
++
++// #define ARCH_HAS_READ_CURRENT_TIMER
++
++typedef unsigned long cycles_t;
++
++static inline cycles_t get_cycles(void)
++{
++	return 0;
++}
++
++extern int timer_alloc(void);
++extern void timer_set(int timervector, unsigned int cycles);
++extern int timer_reset(int timervector, unsigned int cycles);
++extern void timer_tick_init(void);
++extern void timer_device_init(void);
++
++#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
++extern void local_timer_interrupt(void);
++#endif
++
++#if defined(CONFIG_LOCAL_TIMERS) || defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
++extern int local_timer_setup(unsigned int cpu);
++#endif
++
++#endif /* _ASM_UBICOM32_TIMEX_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/tlbflush.h
+@@ -0,0 +1,79 @@
++/*
++ * arch/ubicom32/include/asm/tlbflush.h
++ *   TLB operations for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2000 Lineo, David McCullough <davidm@uclinux.org>
++ * Copyright (C) 2000-2002, Greg Ungerer <gerg@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TLB_FLUSH_H
++#define _ASM_UBICOM32_TLB_FLUSH_H
++
++#include <asm/setup.h>
++
++/*
++ * flush all user-space atc entries.
++ */
++static inline void __flush_tlb(void)
++{
++	BUG();
++}
++
++static inline void __flush_tlb_one(unsigned long addr)
++{
++	BUG();
++}
++
++#define flush_tlb() __flush_tlb()
++
++/*
++ * flush all atc entries (both kernel and user-space entries).
++ */
++static inline void flush_tlb_all(void)
++{
++	BUG();
++}
++
++static inline void flush_tlb_mm(struct mm_struct *mm)
++{
++	BUG();
++}
++
++static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
++{
++	BUG();
++}
++
++static inline void flush_tlb_range(struct mm_struct *mm,
++				   unsigned long start, unsigned long end)
++{
++	BUG();
++}
++
++static inline void flush_tlb_kernel_page(unsigned long addr)
++{
++	BUG();
++}
++
++#endif /* _ASM_UBICOM32_TLB_FLUSH_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/tlb.h
+@@ -0,0 +1,47 @@
++/*
++ * arch/ubicom32/include/asm/tlb.h
++ *   Ubicom32 architecture TLB operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TLB_H
++#define _ASM_UBICOM32_TLB_H
++
++/*
++ * ubicom32 doesn't need any special per-pte or
++ * per-vma handling..
++ */
++#define tlb_start_vma(tlb, vma)	do { } while (0)
++#define tlb_end_vma(tlb, vma)	do { } while (0)
++#define __tlb_remove_tlb_entry(tlb, ptep, address)	do { } while (0)
++
++/*
++ * .. because we flush the whole mm when it
++ * fills up.
++ */
++#define tlb_flush(tlb)
++
++#include <asm-generic/tlb.h>
++
++#endif /* _ASM_UBICOM32_TLB_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/topology.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/topology.h
++ *   Generic topology.h definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TOPOLOGY_H
++#define _ASM_UBICOM32_TOPOLOGY_H
++
++#include <asm-generic/topology.h>
++
++#endif /* _ASM_UBICOM32_TOPOLOGY_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/traps.h
+@@ -0,0 +1,55 @@
++/*
++ * arch/ubicom32/include/asm/traps.h
++ *   Trap related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_TRAPS_H
++#define _ASM_UBICOM32_TRAPS_H
++
++/*
++ * Trap causes passed from ultra to Host OS
++ */
++#define TRAP_CAUSE_TOTAL		13
++#define TRAP_CAUSE_DST_RANGE_ERR	12
++#define TRAP_CAUSE_SRC1_RANGE_ERR	11
++#define TRAP_CAUSE_I_RANGE_ERR		10
++#define TRAP_CAUSE_DCAPT		9
++#define TRAP_CAUSE_DST_SERROR		8
++#define TRAP_CAUSE_SRC1_SERROR		7
++#define TRAP_CAUSE_DST_MISALIGNED	6
++#define TRAP_CAUSE_SRC1_MISALIGNED	5
++#define TRAP_CAUSE_DST_DECODE_ERR	4
++#define TRAP_CAUSE_SRC1_DECODE_ERR	3
++#define TRAP_CAUSE_ILLEGAL_INST		2
++#define TRAP_CAUSE_I_SERROR		1
++#define TRAP_CAUSE_I_DECODE_ERR		0
++
++extern void trap_handler(int irq, struct pt_regs *regs);
++extern void trap_init_interrupt(void);
++extern void unaligned_emulate(unsigned int thread);
++extern int unaligned_only(unsigned int cause);
++
++#endif /* _ASM_UBICOM32_TRAPS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/types.h
+@@ -0,0 +1,75 @@
++/*
++ * arch/ubicom32/include/asm/types.h
++ *   Date type definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TYPES_H
++#define _ASM_UBICOM32_TYPES_H
++
++/*
++ * This file is never included by application software unless
++ * explicitly requested (e.g., via linux/types.h) in which case the
++ * application is Linux specific so (user-) name space pollution is
++ * not a major issue.  However, for interoperability, libraries still
++ * need to be careful to avoid a name clashes.
++ */
++
++#include <asm-generic/int-ll64.h>
++
++#ifndef __ASSEMBLY__
++
++typedef unsigned short umode_t;
++
++#endif /* __ASSEMBLY__ */
++
++/*
++ * These aren't exported outside the kernel to avoid name space clashes
++ */
++#ifdef __KERNEL__
++
++#define BITS_PER_LONG 32
++
++#ifndef __ASSEMBLY__
++
++/* DMA addresses are always 32-bits wide */
++
++typedef u32 dma_addr_t;
++typedef u32 dma64_addr_t;
++
++/*
++ * XXX These are "Ubicom style" typedefs. They should be removed in all files used by linux.
++ */
++typedef u32 u32_t;
++typedef s32 s32_t;
++typedef u16 u16_t;
++typedef s16 s16_t;
++typedef u8 u8_t;
++typedef s8 s8_t;
++
++#endif /* __ASSEMBLY__ */
++
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_TYPES_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/uaccess.h
+@@ -0,0 +1,347 @@
++/*
++ * arch/ubicom32/include/asm/uaccess.h
++ *   User space memory access functions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *   arch/alpha
++ */
++#ifndef _ASM_UBICOM32_UACCESS_H
++#define _ASM_UBICOM32_UACCESS_H
++
++/*
++ * User space memory access functions
++ */
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/string.h>
++
++#include <asm/segment.h>
++
++#define VERIFY_READ	0
++#define VERIFY_WRITE	1
++
++/*
++ * The exception table consists of pairs of addresses: the first is the
++ * address of an instruction that is allowed to fault, and the second is
++ * the address at which the program should continue.  No registers are
++ * modified, so it is entirely up to the continuation code to figure out
++ * what to do.
++ *
++ * All the routines below use bits of fixup code that are out of line
++ * with the main instruction path.  This means when everything is well,
++ * we don't even have to jump over them.  Further, they do not intrude
++ * on our cache or tlb entries.
++ */
++struct exception_table_entry
++{
++	unsigned long insn, fixup;
++};
++
++/* 
++ * Ubicom32 does not currently support the exception table handling.
++ */
++extern unsigned long search_exception_table(unsigned long);
++
++
++#if defined(CONFIG_ACCESS_OK_CHECKS_ENABLED)
++extern int __access_ok(unsigned long addr, unsigned long size);
++#else
++static inline int __access_ok(unsigned long addr, unsigned long size)
++{
++	return 1;
++}
++#endif
++#define access_ok(type, addr, size) \
++	likely(__access_ok((unsigned long)(addr), (size)))
++
++/*
++ * The following functions do not exist.  They keep callers
++ * of put_user and get_user from passing unsupported argument
++ * types.  They result in a link time error.
++ */
++extern int __put_user_bad(void);
++extern int __get_user_bad(void);
++
++/*
++ * __put_user_no_check()
++ *	Put the requested data into the user space verifying the address
++ *
++ * Careful to not
++ * (a) re-use the arguments for side effects (sizeof/typeof is ok)
++ * (b) require any knowledge of processes at this stage
++ */
++#define __put_user_no_check(x, ptr, size)		\
++({							\
++	int __pu_err = 0;				\
++	__typeof__(*(ptr)) __user *__pu_addr = (ptr);	\
++	switch (size) {					\
++	case 1:						\
++	case 2:						\
++	case 4:						\
++	case 8:						\
++		*__pu_addr = (__typeof__(*(ptr)))x;	\
++		break;					\
++	default:					\
++		__pu_err = __put_user_bad();		\
++		break;					\
++	}						\
++	__pu_err;					\
++})
++
++/*
++ * __put_user_check()
++ *	Put the requested data into the user space verifying the address
++ *
++ * Careful to not
++ * (a) re-use the arguments for side effects (sizeof/typeof is ok)
++ * (b) require any knowledge of processes at this stage
++ *
++ * If requested, access_ok() will verify that ptr is a valid user
++ * pointer.
++ */
++#define __put_user_check(x, ptr, size)				\
++({								\
++	int __pu_err = -EFAULT;					\
++	__typeof__(*(ptr)) __user *__pu_addr = (ptr);		\
++	if (access_ok(VERIFY_WRITE, __pu_addr, size)) {		\
++		__pu_err = 0;					\
++		switch (size) {					\
++		case 1:						\
++		case 2:						\
++		case 4:						\
++		case 8:						\
++			*__pu_addr = (__typeof__(*(ptr)))x;	\
++			break;					\
++		default:					\
++			__pu_err = __put_user_bad();		\
++			break;					\
++		}						\
++	}							\
++	__pu_err;						\
++})
++
++/*
++ * __get_user_no_check()
++ *	Read the value at ptr into x.
++ *
++ * If requested, access_ok() will verify that ptr is a valid user
++ * pointer.  If the caller passes a modifying argument for ptr (e.g. x++)
++ * this macro will not work.
++ */
++#define __get_user_no_check(x, ptr, size)			\
++({								\
++	int __gu_err = 0;					\
++	__typeof__((x)) __gu_val = 0;				\
++	const __typeof__(*(ptr)) __user *__gu_addr = (ptr);	\
++	switch (size) {						\
++	case 1:							\
++	case 2:							\
++	case 4:							\
++	case 8:							\
++		__gu_val = (__typeof__((x)))*(__gu_addr);	\
++		break;						\
++	default:						\
++		__gu_err = __get_user_bad();			\
++		(x) = 0;					\
++		break;						\
++	}							\
++	(x) = __gu_val;						\
++	__gu_err;						\
++})
++
++/*
++ * __get_user_check()
++ *	Read the value at ptr into x.
++ *
++ * If requested, access_ok() will verify that ptr is a valid user
++ * pointer.
++ */
++#define __get_user_check(x, ptr, size)					\
++({									\
++	int __gu_err = -EFAULT;						\
++	__typeof__(x) __gu_val = 0;					\
++	const __typeof__(*(ptr)) __user *__gu_addr = (ptr);		\
++	if (access_ok(VERIFY_READ, __gu_addr, size)) {			\
++		__gu_err = 0;						\
++		switch (size) {						\
++		case 1:							\
++		case 2:							\
++		case 4:							\
++		case 8:							\
++			__gu_val = (__typeof__((x)))*(__gu_addr);	\
++			break;						\
++		default:						\
++			__gu_err = __get_user_bad();			\
++			(x) = 0;					\
++			break;						\
++		}							\
++	}								\
++	(x) = __gu_val;							\
++	__gu_err;							\
++})
++
++/*
++ * The "xxx" versions are allowed to perform some amount of address
++ * space checking.  See access_ok().
++ */
++#define put_user(x,ptr) \
++	__put_user_check((__typeof__(*(ptr)))(x),(ptr), sizeof(*(ptr)))
++#define get_user(x,ptr) \
++	__get_user_check((x), (ptr), sizeof(*(ptr)))
++
++/*
++ * The "__xxx" versions do not do address space checking, useful when
++ * doing multiple accesses to the same area (the programmer has to do the
++ * checks by hand with "access_ok()")
++ */
++#define __put_user(x,ptr) \
++	__put_user_no_check((__typeof__(*(ptr)))(x),(ptr), sizeof(*(ptr)))
++#define __get_user(x,ptr) \
++	__get_user_no_check((x), (ptr), sizeof(*(ptr)))
++
++/*
++ * __copy_tofrom_user_no_check()
++ *	Copy the data either to or from user space.
++ *
++ * Return the number of bytes NOT copied.
++ */
++static inline unsigned long
++__copy_tofrom_user_no_check(void *to, const void *from, unsigned long n)
++{
++	memcpy(to, from, n);
++	return 0;
++}
++
++/*
++ * copy_to_user()
++ * 	Copy the kernel data to user space.
++ *
++ * Return the number of bytes that were copied.
++ */
++static inline unsigned long 
++copy_to_user(void __user *to, const void *from, unsigned long n)
++{
++	if (!access_ok(VERIFY_WRITE, to, n)) {
++		return n;
++	}
++	return __copy_tofrom_user_no_check((__force void *)to, from, n);
++}
++
++/*
++ * copy_from_user()
++ * 	Copy the user data to kernel space.
++ *
++ * Return the number of bytes that were copied.  On error, we zero 
++ * out the destination.
++ */
++static inline unsigned long
++copy_from_user(void *to, const void __user *from, unsigned long n)
++{
++	if (!access_ok(VERIFY_READ, from, n)) {
++		return n;
++	}
++	return __copy_tofrom_user_no_check(to, (__force void *)from, n);
++}
++
++#define __copy_to_user(to, from, n) \
++	__copy_tofrom_user_no_check((__force void *)to, from, n)
++#define __copy_from_user(to, from, n) \
++	__copy_tofrom_user_no_check(to, (__force void *)from, n)
++#define __copy_to_user_inatomic(to, from, n) \
++	__copy_tofrom_user_no_check((__force void *)to, from, n)
++#define __copy_from_user_inatomic(to, from, n) \
++	__copy_tofrom_user_no_check(to, (__force void *)from, n)
++
++#define copy_to_user_ret(to, from, n, retval) \
++	({ if (copy_to_user(to, from, n)) return retval; })
++
++#define copy_from_user_ret(to, from, n, retval) \
++	({ if (copy_from_user(to, from, n)) return retval; })
++
++/*
++ * strncpy_from_user()
++ *	Copy a null terminated string from userspace.
++ *
++ * dst - Destination in kernel space.  The buffer must be at least count.
++ * src - Address of string in user space.
++ * count - Maximum number of bytes to copy (including the trailing NULL).
++ * 
++ * Returns the length of the string (not including the trailing NULL.  If 
++ * count is smaller than the length of the string, we copy count bytes
++ * and return count.
++ *
++ */
++static inline long strncpy_from_user(char *dst, const __user char *src, long count)
++{
++	char *tmp;
++	if (!access_ok(VERIFY_READ, src, 1)) {
++		return -EFAULT;
++	}
++
++	strncpy(dst, src, count);
++	for (tmp = dst; *tmp && count > 0; tmp++, count--) {
++		;
++	}
++	return(tmp - dst);
++}
++
++/*
++ * strnlen_user()
++ *	Return the size of a string (including the ending 0)
++ *
++ * Return -EFAULT on exception, a value greater than <n> if too long
++ */
++static inline long strnlen_user(const __user char *src, long n)
++{
++	if (!access_ok(VERIFY_READ, src, 1)) {
++		return -EFAULT;
++	}
++	return(strlen(src) + 1);
++}
++
++#define strlen_user(str) strnlen_user(str, 32767)
++
++/*
++ * __clear_user()
++ *	Zero Userspace
++ */
++static inline unsigned long __clear_user(__user void *to, unsigned long n)
++{
++	memset(to, 0, n);
++	return 0;
++}
++
++/*
++ * clear_user()
++ *	Zero user space (check for valid addresses)
++ */
++static inline unsigned long clear_user(__user void *to, unsigned long n)
++{
++	if (!access_ok(VERIFY_WRITE, to, n)) {
++		return -EFAULT;
++	}
++	return __clear_user(to, n);
++}
++
++#endif /* _ASM_UBICOM32_UACCESS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubi32-cs4384.h
+@@ -0,0 +1,53 @@
++/*
++ * arch/ubicom32/include/asm/ubi32-cs4384.h
++ *   Ubicom32 architecture CS4384 driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_UBI32_CS4384_H
++#define _ASM_UBICOM32_UBI32_CS4384_H
++
++enum ubi32_cs4384_mclk_source {
++	UBI32_CS4384_MCLK_PWM_0,
++	UBI32_CS4384_MCLK_PWM_1,
++	UBI32_CS4384_MCLK_PWM_2,
++	UBI32_CS4384_MCLK_CLKDIV_1,
++	UBI32_CS4384_MCLK_OTHER,
++};
++
++struct ubi32_cs4384_mclk_entry {
++	/*
++	 * Rate, in Hz, of this entry
++	 */
++	int rate;
++
++	/*
++	 * The divider to program to get the rate
++	 */
++	int div;
++};
++
++struct ubi32_cs4384_platform_data {
++	enum ubi32_cs4384_mclk_source	mclk_src;
++
++	int				n_mclk;
++	struct ubi32_cs4384_mclk_entry	*mclk_entries;
++};
++#endif /* _ASM_UBICOM32_UBI32_CS4384_H */
++
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubi32-pcm.h
+@@ -0,0 +1,53 @@
++/*
++ * arch/ubicom32/include/asm/ubi32-pcm.h
++ *   Ubicom32 architecture PCM driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_UBI32_PCM_H
++#define _ASM_UBICOM32_UBI32_PCM_H
++
++/*
++ * This function is called when the sample rate has changed
++ */
++typedef int (*ubi32_pcm_set_rate_fn_t)(void *appdata, int rate);
++
++struct ubi32pcm_platform_data {
++	/*
++	 * Name of the audiotio node
++	 */
++	const char		*node_name;
++
++	/*
++	 * Application specific data provided when calling functions
++	 */
++	void			*appdata;
++
++	/*
++	 * Functions called when various things happen
++	 */
++	ubi32_pcm_set_rate_fn_t	set_rate;
++
++	/*
++	 * Pointer to optional upper layer data (i.e. DAC config, etc)
++	 */
++	void			*priv_data;
++};
++#endif /* _ASM_UBICOM32_UBI32_PCM_H */
++
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32bl.h
+@@ -0,0 +1,84 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32bl.h
++ *   Ubicom32 architecture backlight driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_BL_H
++#define _ASM_UBICOM32_UBICOM32_BL_H
++
++/*
++ * Different backlight control mechanisms
++ */
++enum ubicom32bl_pwm_types {
++	/*
++	 * PWM controlled backlight
++	 */
++	UBICOM32BL_TYPE_PWM,
++
++	/*
++	 * HRT based PWM backlight
++	 */
++	UBICOM32BL_TYPE_PWM_HRT,
++
++	/*
++	 * No dimming, just on or off
++	 */
++	UBICOM32BL_TYPE_BINARY,
++};
++
++struct ubicom32bl_platform_data {
++	/*
++	 * Default intensity of the backlight 0-255
++	 */
++	u8_t				default_intensity;
++
++	/*
++	 * TRUE if the backlight sense is active low. (inverted)
++	 * FALSE if the backlight sense is active high.
++	 */
++	bool				invert;
++
++	/*
++	 * Type of the backlight
++	 */
++	enum ubicom32bl_pwm_types	type;
++
++	/*
++	 * GPIO of the backlight if UBICOM32BL_TYPE_PWM_HRT, UBICOM32BL_TYPE_BINARY
++	 */
++	unsigned			gpio;
++
++	/*
++	 * PWM channel and parameters of the backlight if UBICOM32BL_TYPE_PWM
++	 *	pre_scaler: sets the rate at which the PWM timer is clocked. (clk_core / 2^pre_scaler)
++	 *	period: sets the period of the timer in timer cycles
++	 * The duty cycle will be directly proportional to the brightness setting.
++	 */
++	u32_t				pwm_channel;
++	u8_t				pwm_prescale;
++	u16_t				pwm_period;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_BL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32-common-asm.h
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32-common-asm.h
++ *   Ubicom32 atomic lock operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32_COMMON_ASM_H
++#define _ASM_UBICOM32_UBICOM32_COMMON_ASM_H
++
++/*
++ * atomic_lock_acquire macro
++ *	Equivalent to __atomic_lock_acquire()
++ */
++.macro atomic_lock_acquire
++	bset scratchpad1, scratchpad1, #ATOMIC_LOCK_BIT
++	jmpne.f	.-4
++.endm
++
++/*
++ * atomic_lock_release macro
++ *	Equivalent to __atomic_lock_release()
++ */
++.macro atomic_lock_release
++	bclr scratchpad1, scratchpad1, #ATOMIC_LOCK_BIT
++.endm
++
++#endif /* _ASM_UBICOM32_UBICOM32_COMMON_ASM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32-common.h
+@@ -0,0 +1,124 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32-common.h
++ *   Ubicom32 atomic lock operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32_COMMON_H
++#define _ASM_UBICOM32_UBICOM32_COMMON_H
++
++#define S(arg) #arg
++#define D(arg) S(arg)
++/*
++ * scratchpad1 is owned by the LDSR.  
++ * 
++ * The upper bits provide 16 global spinlocks.  Acquiring one of these
++ * global spinlocks synchornizes across multiple threads and prevents 
++ * the LDSR from delivering any interrupts while the lock is held.
++ * Use these locks only when absolutely required.
++ *
++ * The lower 16 bits of scratchpad1 are used as per thread interrupt
++ * enable/disable bits.  These bits will prevent a thread from receiving
++ * any interrupts.
++ *
++ * Bit Usage:
++ * - MT_EN_LOCK_BIT   - Protects writes to MT_EN, so code can read current value
++ *			then write a new value atomically (profiler for example)
++ * - ATOMIC_LOCK_BIT - Used to provide general purpose atomic handling.
++ * - LDSR_LOCK_BIT   - Used by the LDSR exclusively to provide protection.
++ * - LSB 16 bits     - Used by the LDSR to represent thread enable/disable bits.
++ */
++#define MT_EN_LOCK_BIT	31
++#define ATOMIC_LOCK_BIT 30
++#define LDSR_LOCK_BIT   29
++#define PCI_LOCK_BIT	28
++
++#if !defined(__ASSEMBLY__)
++
++#define UBICOM32_TRYLOCK(bit) \
++	asm volatile (						      \
++	"	move.4 %0, #0					\n\t" \
++	"	bset scratchpad1, scratchpad1, #"D(bit)"	\n\t" \
++	"	jmpne.f	1f					\n\t" \
++	"	move.4 %0, #1					\n\t" \
++	"1:							\n\t" \
++		: "=r" (ret)					      \
++		:						      \
++		: "cc", "memory"				      \
++	);							      \
++
++#define UBICOM32_UNLOCK(bit) \
++	asm volatile (						      \
++	"	bclr scratchpad1, scratchpad1, #"D(bit)"	\n\t" \
++		:						      \
++		:						      \
++		: "cc", "memory"				      \
++	);							      \
++
++#define UBICOM32_LOCK(bit) \
++	asm volatile (						      \
++	"1:	bset scratchpad1, scratchpad1, #"D(bit)"	\n\t" \
++	"	jmpne.f	1b					\n\t" \
++		:						      \
++		:						      \
++		: "cc", "memory"				      \
++	);							      \
++
++/*
++ * __atomic_lock_trylock()
++ *	Attempt to acquire the lock, return TRUE if acquired.
++ */
++static inline int __atomic_lock_trylock(void)
++{
++	int ret;
++	UBICOM32_TRYLOCK(ATOMIC_LOCK_BIT);
++	return ret;
++}
++
++/*
++ * __atomic_lock_release()
++ *	Release the global atomic lock.
++ *
++ * Note: no one is suspended waiting since this lock is a spinning lock.
++ */
++static inline void __atomic_lock_release(void)
++{
++	UBICOM32_UNLOCK(ATOMIC_LOCK_BIT);
++}
++
++/*
++ * __atomic_lock_acquire()
++ *	Acquire the global atomic lock, spin if not available.
++ */
++static inline void __atomic_lock_acquire(void)
++{
++	UBICOM32_LOCK(ATOMIC_LOCK_BIT);
++}
++#else /* __ASSEMBLY__ */
++
++#include <asm/ubicom32-common-asm.h>
++
++#endif /* __ASSEMBLY__ */
++#endif /* _ASM_UBICOM32_UBICOM32_COMMON_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32fb.h
+@@ -0,0 +1,56 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32fb.h
++ *   Ubicom32 architecture video frame buffer definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_UBICOM32FB_H
++#define _ASM_UBICOM32_UBICOM32FB_H
++
++#include <linux/ioctl.h>
++
++/* 
++ * Set next frame
++ */
++#define UBICOM32FB_IOCTL_SET_NEXT_FRAME		_IOW('r',  1, void *) 
++#define UBICOM32FB_IOCTL_SET_NEXT_FRAME_SYNC	_IOW('r',  2, void *) 
++
++/*
++ * Set Mode
++ */
++#define UBICOM32FB_IOCTL_SET_MODE		_IOW('r',  3, void *) 
++struct ubicom32fb_mode {
++	unsigned long	width;
++	unsigned long	height;
++	unsigned long	flags;
++	void		*next_frame;
++};
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_SCAN_ORDER	(1 << 8)
++
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_BLOCK_ORDER	(1 << 7)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV		(1 << 6)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_VSUB		(1 << 5)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_16_255	(1 << 4)
++
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_0_255	(1 << 3)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_2_1		(1 << 2)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_1_1		(1 << 1)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_SCALE_ENABLE	(1 << 0)
++
++#endif /* _ASM_UBICOM32_UBICOM32FB_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32hid.h
+@@ -0,0 +1,133 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32hid.h
++ *   Ubicom32 architecture HID driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_HID_H
++#define _ASM_UBICOM32_UBICOM32_HID_H
++
++enum ubicom32hid_bl_types {
++	/*
++	 * On or off, using command SET_BL_EN, PB4
++	 */
++	UBICOM32HID_BL_TYPE_BINARY,
++
++	/*
++	 * Dimmable, using command SET_PWM, PB3
++	 */
++	UBICOM32HID_BL_TYPE_PWM,
++};
++
++/*
++ * IR code mapping to event code.
++ *	If there are no button mappings and no ir mappings 
++ *	then no input driver will be registered.
++ */
++struct ubicom32hid_ir {
++	/*
++	 * Input event code (KEY_*, SW_*, etc)
++	 */
++	int		code;
++
++	/*
++	 * Input event type (EV_KEY, EV_SW, etc)
++	 */
++	int		type;
++
++	/*
++	 * The IR code of this button.
++	 */
++	uint32_t	ir_code;
++};
++
++/*
++ * Button mapping to event code.
++ *	If there are no button mappings and no ir mappings 
++ *	then no input driver will be registered.
++ */
++struct ubicom32hid_button {
++	/*
++	 * Input event code (KEY_*, SW_*, etc)
++	 */
++	int		code;
++
++	/*
++	 * Input event type (EV_KEY, EV_SW, etc)
++	 */
++	int		type;
++
++	/*
++	 * Bit number of this button.
++	 */
++	uint8_t		bit;
++};
++
++struct ubicom32hid_platform_data {
++	/*
++	 * Default intensity of the backlight 0-255
++	 */
++	u8_t				default_intensity;
++
++	/*
++	 * GPIO number of the reset line and its polarity.
++	 */
++	unsigned			gpio_reset;
++	int				gpio_reset_polarity;
++
++	/*
++	 * TRUE if the backlight sense is active low. (inverted)
++	 * FALSE if the backlight sense is active high.
++	 */
++	bool				invert;
++
++	/*
++	 * Type of the backlight we are controlling
++	 */
++	enum ubicom32hid_bl_types	type;
++
++	/*
++	 * Optional polling rate for input, in ms, defaults to 100ms
++	 */
++	int				poll_interval;
++	
++	/*
++	 * Optional name to register as input device
++	 */
++	const char			*input_name;
++
++	/*
++	 * Button mapping array
++	 */
++	const struct ubicom32hid_button	*buttons;
++	int				nbuttons;
++
++	/*
++	 * IR mapping array
++	 */
++	const struct ubicom32hid_ir	*ircodes;
++	int				nircodes;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_HID_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32input.h
+@@ -0,0 +1,76 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32input.h
++ *   Ubicom32 Input driver, based on gpio-keys
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *
++ * TODO: add groups for inputs which can be sampled together
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32_INPUT_H
++#define _ASM_UBICOM32_UBICOM32_INPUT_H
++
++struct ubicom32input_button {
++	/*
++	 * Input event code (KEY_*, SW_*, etc)
++	 */
++	int		code;
++
++	/*
++	 * Input event type (EV_KEY, EV_SW, etc)
++	 */
++	int		type;
++
++	/*
++	 * GPIO to poll
++	 */
++	int		gpio;
++
++	/*
++	 * 1 for active low, 0 for active high
++	 */
++	int		active_low;
++
++	/*
++	 * Description, used for reserving GPIOs
++	 */
++	const char	*desc;
++};
++
++struct ubicom32input_platform_data {
++	struct ubicom32input_button	*buttons;
++	int				nbuttons;
++
++	/*
++	 * Optional poll interval, in ms, defaults to 50ms
++	 */
++	int				poll_interval;
++
++	/*
++	 * Option Name of this driver
++	 */
++	const char			*name;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_INPUT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32input_i2c.h
+@@ -0,0 +1,71 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32input_i2c.h
++ *   Ubicom32 architecture Input driver over I2C platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *
++ * TODO: add groups for inputs which can be sampled together
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32_INPUT_I2C_H
++#define _ASM_UBICOM32_UBICOM32_INPUT_I2C_H
++
++struct ubicom32input_i2c_button {
++	/*
++	 * Input event code (KEY_*, SW_*, etc)
++	 */
++	int		code;
++
++	/*
++	 * Input event type (EV_KEY, EV_SW, etc)
++	 */
++	int		type;
++
++	/*
++	 * Bit number of this button. (0 - ngpio)
++	 */
++	int		bit;
++
++	/*
++	 * 1 for active low, 0 for active high
++	 */
++	int		active_low;
++};
++
++struct ubicom32input_i2c_platform_data {
++	struct ubicom32input_i2c_button	*buttons;
++	int				nbuttons;
++
++	/*
++	 * Optional poll interval, in ms, defaults to 100ms
++	 */
++	int				poll_interval;
++
++	/*
++	 * Option Name of this driver
++	 */
++	const char			*name;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_INPUT_I2C_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32lcd.h
+@@ -0,0 +1,39 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32lcd.h
++ *   Ubicom32 architecture LCD driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_LCD_H
++#define _ASM_UBICOM32_UBICOM32_LCD_H
++
++struct ubicom32lcd_platform_data {
++	/*
++	 * GPIO and polarity for VGH signal.  A FALSE polarity is active low, TRUE is active high.
++	 */
++	int		vgh_gpio;
++	bool		vgh_polarity;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_LCD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32ring.h
+@@ -0,0 +1,103 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32ring.h
++ * Userspace I/O platform driver for Ubicom32 ring buffers
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32RING_H
++#define _ASM_UBICOM32_UBICOM32RING_H
++
++#define UIO_UBICOM32RING_REG_VERSION	2
++
++struct uio_ubicom32ring_desc {
++	volatile unsigned int		head;
++	volatile unsigned int		tail;
++	unsigned int			entries;
++	volatile unsigned int		ring[0];
++};
++
++struct uio_ubicom32ring_regs {
++	unsigned int			version;
++
++	/*
++	 * Magic type used to identify the ring set.  Each driver will
++	 * have a different magic value.
++	 */
++	unsigned int			magic;
++
++	/*
++	 * Registers defined by the driver
++	 */
++	unsigned int			regs_size;
++	void				*regs;
++
++	/*
++	 * The locations of the rings
++	 *
++	 * DO NOT ADD ANYTHING BELOW THIS LINE
++	 */
++	unsigned int			num_rings;
++	struct uio_ubicom32ring_desc	*rings[0];
++};
++
++/*
++ * ringtio_ring_flush
++ */
++static inline void ringtio_ring_flush(struct uio_ubicom32ring_desc *rd)
++{
++	rd->head = rd->tail = 0;
++}
++
++/*
++ * ringtio_ring_get
++ */
++static inline int ringtio_ring_get(struct uio_ubicom32ring_desc *rd, void **val)
++{
++	if (rd->head == rd->tail) {
++		return 0;
++	}
++
++	*val = (void *)rd->ring[rd->head++];
++	if (rd->head == rd->entries) {
++		rd->head = 0;
++	}
++	return 1;
++}
++
++/*
++ * ringtio_ring_put
++ */
++static inline int ringtio_ring_put(struct uio_ubicom32ring_desc *rd, void *val)
++{
++	unsigned int newtail = rd->tail + 1;
++	if (newtail == rd->entries) {
++		newtail = 0;
++	}
++
++	if (newtail == rd->head) {
++		return 0;
++	}
++
++	rd->ring[rd->tail] = (unsigned int)val;
++	rd->tail = newtail;
++	return 1;
++}
++
++#endif /* _ASM_UBICOM32_UBICOM32RING_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32sd.h
+@@ -0,0 +1,45 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32sd.h
++ *   Ubicom32SD public include file
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_SD_H
++#define _ASM_UBICOM32_UBICOM32_SD_H
++
++struct ubicom32sd_card {
++	/*
++	 * GPIOs of PWR, WP and CD lines.
++	 * Polarity is 1 for active high and 0 for active low
++	 */
++	int				pin_pwr;
++	bool				pwr_polarity;
++	int				pin_wp;
++	bool				wp_polarity;
++	int				pin_cd;
++	bool				cd_polarity;
++};
++
++struct ubicom32sd_platform_data {
++	int			ncards;
++
++	struct ubicom32sd_card	*cards;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_SD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32-spi-gpio.h
+@@ -0,0 +1,62 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32-spi-gpio.h
++ *   Platform driver data definitions for GPIO based SPI driver.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_SPI_GPIO_H
++#define _ASM_UBICOM32_UBICOM32_SPI_GPIO_H
++
++struct ubicom32_spi_gpio_platform_data {
++	/*
++	 * GPIO to use for MOSI, MISO, CLK
++	 */
++	int	pin_mosi;
++	int	pin_miso;
++	int	pin_clk;
++
++	/*
++	 * Default state of CLK line
++	 */
++	int	clk_default;
++
++	/*
++	 * Number of chip selects on this bus
++	 */
++	int	num_chipselect;
++
++	/*
++	 * The bus number of this chip
++	 */
++	int	bus_num;
++};
++
++struct ubicom32_spi_gpio_controller_data {
++	/*
++	 * GPIO to use for chip select
++	 */
++	int	pin_cs;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_SPI_GPIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32suart.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32suart.h
++ *   <TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_SUART_H
++#define _ASM_UBICOM32_UBICOM32_SUART_H
++
++/*
++ * Platform resource id for serdes uart clock parameter
++ */
++#define UBICOM32_SUART_IORESOURCE_CLOCK		(1)
++
++#endif /* _ASM_UBICOM32_UBICOM32_SUART_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32-tio.h
+@@ -0,0 +1,42 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32-tio.h
++ *   Threaded I/O interface definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_TIO_H
++#define _ASM_UBICOM32_UBICOM32_TIO_H
++
++extern u8_t usb_tio_read_u16(u32_t address, u16_t *data);
++extern u8_t usb_tio_read_u8(u32_t address, u8_t *data);
++
++extern u8_t usb_tio_write_u16(u32_t address, u16_t data);
++extern u8_t usb_tio_write_u8(u32_t address, u8_t data);
++
++extern u8_t usb_tio_read_fifo(u32_t address, u32_t buffer, u32_t bytes);
++extern u8_t usb_tio_write_fifo(u32_t address, u32_t buffer, u32_t bytes);
++extern u8_t usb_tio_write_fifo_sync(u32_t address, u32_t buffer, u32_t bytes);
++extern void usb_tio_read_int_status(u8_t *int_usb, u16_t *int_tx, u16_t *int_rx);
++
++#endif /* _ASM_UBICOM32_UBICOM32_TIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ucontext.h
+@@ -0,0 +1,39 @@
++/*
++ * arch/ubicom32/include/asm/ucontext.h
++ *   Definition of ucontext structure for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UCONTEXT_H
++#define _ASM_UBICOM32_UCONTEXT_H
++
++struct ucontext {
++	unsigned long	  uc_flags;
++	struct ucontext  *uc_link;
++	stack_t		  uc_stack;
++	struct sigcontext	  uc_mcontext;
++	sigset_t	  uc_sigmask;	/* mask last for extensibility */
++};
++
++#endif /* _ASM_UBICOM32_UCONTEXT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/unaligned.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/unaligned.h
++ *   Ubicom32 architecture unaligned memory access definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *
++ * TODO: This is a copy of arm unaligned handling that probably needs
++ * to be optimized for UBICOM32, but it works for now.
++ */
++
++#ifndef _ASM_UBICOM32_UNALIGNED_H
++#define _ASM_UBICOM32_UNALIGNED_H
++
++#include <asm/types.h>
++
++#include <linux/unaligned/le_byteshift.h>
++#include <linux/unaligned/be_byteshift.h>
++#include <linux/unaligned/generic.h>
++
++#define get_unaligned	__get_unaligned_be
++#define put_unaligned	__put_unaligned_be
++
++#endif /* _ASM_UBICOM32_UNALIGNED_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/unistd.h
+@@ -0,0 +1,400 @@
++/*
++ * arch/ubicom32/include/asm/unistd.h
++ *   Ubicom32 architecture syscall definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UNISTD_H
++#define _ASM_UBICOM32_UNISTD_H
++
++/*
++ * This file contains the system call numbers.
++ */
++
++#define __NR_restart_syscall      0
++#define __NR_exit		  1
++#define __NR_fork		  2
++#define __NR_read		  3
++#define __NR_write		  4
++#define __NR_open		  5
++#define __NR_close		  6
++#define __NR_waitpid		  7
++#define __NR_creat		  8
++#define __NR_link		  9
++#define __NR_unlink		 10
++#define __NR_execve		 11
++#define __NR_chdir		 12
++#define __NR_time		 13
++#define __NR_mknod		 14
++#define __NR_chmod		 15
++#define __NR_chown		 16
++#define __NR_break		 17
++#define __NR_oldstat		 18
++#define __NR_lseek		 19
++#define __NR_getpid		 20
++#define __NR_mount		 21
++#define __NR_umount		 22
++#define __NR_setuid		 23
++#define __NR_getuid		 24
++#define __NR_stime		 25
++#define __NR_ptrace		 26
++#define __NR_alarm		 27
++#define __NR_oldfstat		 28
++#define __NR_pause		 29
++#define __NR_utime		 30
++#define __NR_stty		 31
++#define __NR_gtty		 32
++#define __NR_access		 33
++#define __NR_nice		 34
++#define __NR_ftime		 35
++#define __NR_sync		 36
++#define __NR_kill		 37
++#define __NR_rename		 38
++#define __NR_mkdir		 39
++#define __NR_rmdir		 40
++#define __NR_dup		 41
++#define __NR_pipe		 42
++#define __NR_times		 43
++#define __NR_prof		 44
++#define __NR_brk		 45
++#define __NR_setgid		 46
++#define __NR_getgid		 47
++#define __NR_signal		 48
++#define __NR_geteuid		 49
++#define __NR_getegid		 50
++#define __NR_acct		 51
++#define __NR_umount2		 52
++#define __NR_lock		 53
++#define __NR_ioctl		 54
++#define __NR_fcntl		 55
++#define __NR_mpx		 56
++#define __NR_setpgid		 57
++#define __NR_ulimit		 58
++#define __NR_oldolduname	 59
++#define __NR_umask		 60
++#define __NR_chroot		 61
++#define __NR_ustat		 62
++#define __NR_dup2		 63
++#define __NR_getppid		 64
++#define __NR_getpgrp		 65
++#define __NR_setsid		 66
++#define __NR_sigaction		 67
++#define __NR_sgetmask		 68
++#define __NR_ssetmask		 69
++#define __NR_setreuid		 70
++#define __NR_setregid		 71
++#define __NR_sigsuspend		 72
++#define __NR_sigpending		 73
++#define __NR_sethostname	 74
++#define __NR_setrlimit		 75
++#define __NR_getrlimit		 76
++#define __NR_getrusage		 77
++#define __NR_gettimeofday	 78
++#define __NR_settimeofday	 79
++#define __NR_getgroups		 80
++#define __NR_setgroups		 81
++#define __NR_select		 82
++#define __NR_symlink		 83
++#define __NR_oldlstat		 84
++#define __NR_readlink		 85
++#define __NR_uselib		 86
++#define __NR_swapon		 87
++#define __NR_reboot		 88
++#define __NR_readdir		 89
++#define __NR_mmap		 90
++#define __NR_munmap		 91
++#define __NR_truncate		 92
++#define __NR_ftruncate		 93
++#define __NR_fchmod		 94
++#define __NR_fchown		 95
++#define __NR_getpriority	 96
++#define __NR_setpriority	 97
++#define __NR_profil		 98
++#define __NR_statfs		 99
++#define __NR_fstatfs		100
++#define __NR_ioperm		101
++#define __NR_socketcall		102
++#define __NR_syslog		103
++#define __NR_setitimer		104
++#define __NR_getitimer		105
++#define __NR_stat		106
++#define __NR_lstat		107
++#define __NR_fstat		108
++#define __NR_olduname		109
++#define __NR_iopl		/* 110 */ not supported
++#define __NR_vhangup		111
++#define __NR_idle		/* 112 */ Obsolete
++#define __NR_vm86		/* 113 */ not supported
++#define __NR_wait4		114
++#define __NR_swapoff		115
++#define __NR_sysinfo		116
++#define __NR_ipc		117
++#define __NR_fsync		118
++#define __NR_sigreturn		119
++#define __NR_clone		120
++#define __NR_setdomainname	121
++#define __NR_uname		122
++#define __NR_cacheflush		123
++#define __NR_adjtimex		124
++#define __NR_mprotect		125
++#define __NR_sigprocmask	126
++#define __NR_create_module	127
++#define __NR_init_module	128
++#define __NR_delete_module	129
++#define __NR_get_kernel_syms	130
++#define __NR_quotactl		131
++#define __NR_getpgid		132
++#define __NR_fchdir		133
++#define __NR_bdflush		134
++#define __NR_sysfs		135
++#define __NR_personality	136
++#define __NR_afs_syscall	137 /* Syscall for Andrew File System */
++#define __NR_setfsuid		138
++#define __NR_setfsgid		139
++#define __NR__llseek		140
++#define __NR_getdents		141
++#define __NR__newselect		142
++#define __NR_flock		143
++#define __NR_msync		144
++#define __NR_readv		145
++#define __NR_writev		146
++#define __NR_getsid		147
++#define __NR_fdatasync		148
++#define __NR__sysctl		149
++#define __NR_mlock		150
++#define __NR_munlock		151
++#define __NR_mlockall		152
++#define __NR_munlockall		153
++#define __NR_sched_setparam		154
++#define __NR_sched_getparam		155
++#define __NR_sched_setscheduler		156
++#define __NR_sched_getscheduler		157
++#define __NR_sched_yield		158
++#define __NR_sched_get_priority_max	159
++#define __NR_sched_get_priority_min	160
++#define __NR_sched_rr_get_interval	161
++#define __NR_nanosleep		162
++#define __NR_mremap		163
++#define __NR_setresuid		164
++#define __NR_getresuid		165
++#define __NR_getpagesize	166
++#define __NR_query_module	167
++#define __NR_poll		168
++#define __NR_nfsservctl		169
++#define __NR_setresgid		170
++#define __NR_getresgid		171
++#define __NR_prctl		172
++#define __NR_rt_sigreturn	173
++#define __NR_rt_sigaction	174
++#define __NR_rt_sigprocmask	175
++#define __NR_rt_sigpending	176
++#define __NR_rt_sigtimedwait	177
++#define __NR_rt_sigqueueinfo	178
++#define __NR_rt_sigsuspend	179
++#define __NR_pread64		180
++#define __NR_pwrite64		181
++#define __NR_lchown		182
++#define __NR_getcwd		183
++#define __NR_capget		184
++#define __NR_capset		185
++#define __NR_sigaltstack	186
++#define __NR_sendfile		187
++#define __NR_getpmsg		188	/* some people actually want streams */
++#define __NR_putpmsg		189	/* some people actually want streams */
++#define __NR_vfork		190
++#define __NR_ugetrlimit		191
++#define __NR_mmap2		192
++#define __NR_truncate64		193
++#define __NR_ftruncate64	194
++#define __NR_stat64		195
++#define __NR_lstat64		196
++#define __NR_fstat64		197
++#define __NR_chown32		198
++#define __NR_getuid32		199
++#define __NR_getgid32		200
++#define __NR_geteuid32		201
++#define __NR_getegid32		202
++#define __NR_setreuid32		203
++#define __NR_setregid32		204
++#define __NR_getgroups32	205
++#define __NR_setgroups32	206
++#define __NR_fchown32		207
++#define __NR_setresuid32	208
++#define __NR_getresuid32	209
++#define __NR_setresgid32	210
++#define __NR_getresgid32	211
++#define __NR_lchown32		212
++#define __NR_setuid32		213
++#define __NR_setgid32		214
++#define __NR_setfsuid32		215
++#define __NR_setfsgid32		216
++#define __NR_pivot_root		217
++#define __NR_getdents64		220
++#define __NR_gettid		221
++#define __NR_tkill		222
++#define __NR_setxattr		223
++#define __NR_lsetxattr		224
++#define __NR_fsetxattr		225
++#define __NR_getxattr		226
++#define __NR_lgetxattr		227
++#define __NR_fgetxattr		228
++#define __NR_listxattr		229
++#define __NR_llistxattr		230
++#define __NR_flistxattr		231
++#define __NR_removexattr	232
++#define __NR_lremovexattr	233
++#define __NR_fremovexattr	234
++#define __NR_futex		235
++#define __NR_sendfile64		236
++#define __NR_mincore		237
++#define __NR_madvise		238
++#define __NR_fcntl64		239
++#define __NR_readahead		240
++#define __NR_io_setup		241
++#define __NR_io_destroy		242
++#define __NR_io_getevents	243
++#define __NR_io_submit		244
++#define __NR_io_cancel		245
++#define __NR_fadvise64		246
++#define __NR_exit_group		247
++#define __NR_lookup_dcookie	248
++#define __NR_epoll_create	249
++#define __NR_epoll_ctl		250
++#define __NR_epoll_wait		251
++#define __NR_remap_file_pages	252
++#define __NR_set_tid_address	253
++#define __NR_timer_create	254
++#define __NR_timer_settime	255
++#define __NR_timer_gettime	256
++#define __NR_timer_getoverrun	257
++#define __NR_timer_delete	258
++#define __NR_clock_settime	259
++#define __NR_clock_gettime	260
++#define __NR_clock_getres	261
++#define __NR_clock_nanosleep	262
++#define __NR_statfs64		263
++#define __NR_fstatfs64		264
++#define __NR_tgkill		265
++#define __NR_utimes		266
++#define __NR_fadvise64_64	267
++#define __NR_mbind		268
++#define __NR_get_mempolicy	269
++#define __NR_set_mempolicy	270
++#define __NR_mq_open		271
++#define __NR_mq_unlink		272
++#define __NR_mq_timedsend	273
++#define __NR_mq_timedreceive	274
++#define __NR_mq_notify		275
++#define __NR_mq_getsetattr	276
++#define __NR_waitid		277
++#define __NR_vserver		278
++#define __NR_add_key		279
++#define __NR_request_key	280
++#define __NR_keyctl		281
++#define __NR_ioprio_set		282
++#define __NR_ioprio_get		283
++#define __NR_inotify_init	284
++#define __NR_inotify_add_watch	285
++#define __NR_inotify_rm_watch	286
++#define __NR_migrate_pages	287
++#define __NR_openat		288
++#define __NR_mkdirat		289
++#define __NR_mknodat		290
++#define __NR_fchownat		291
++#define __NR_futimesat		292
++#define __NR_fstatat64		293
++#define __NR_unlinkat		294
++#define __NR_renameat		295
++#define __NR_linkat		296
++#define __NR_symlinkat		297
++#define __NR_readlinkat		298
++#define __NR_fchmodat		299
++#define __NR_faccessat		300
++#define __NR_pselect6		301
++#define __NR_ppoll		302
++#define __NR_unshare		303
++#define __NR_set_robust_list	304
++#define __NR_get_robust_list	305
++#define __NR_splice		306
++#define __NR_sync_file_range	307
++#define __NR_tee		308
++#define __NR_vmsplice		309
++#define __NR_move_pages		310
++#define __NR_sched_setaffinity	311
++#define __NR_sched_getaffinity	312
++#define __NR_kexec_load		313
++#define __NR_getcpu		314
++#define __NR_epoll_pwait	315
++#define __NR_utimensat		316
++#define __NR_signalfd		317
++#define __NR_timerfd_create	318
++#define __NR_eventfd		319
++#define __NR_fallocate		320
++#define __NR_timerfd_settime	321
++#define __NR_timerfd_gettime	322
++#define __NR_signalfd4		323
++#define __NR_eventfd2		324
++#define __NR_epoll_create1	325
++#define __NR_dup3		326
++#define __NR_pipe2		327
++#define __NR_inotify_init1	328
++
++#ifdef __KERNEL__
++
++#define NR_syscalls		329
++
++#define __ARCH_WANT_IPC_PARSE_VERSION
++#define __ARCH_WANT_OLD_READDIR
++#define __ARCH_WANT_OLD_STAT
++#define __ARCH_WANT_STAT64
++#define __ARCH_WANT_SYS_ALARM
++#define __ARCH_WANT_SYS_GETHOSTNAME
++#define __ARCH_WANT_SYS_PAUSE
++#define __ARCH_WANT_SYS_SGETMASK
++#define __ARCH_WANT_SYS_SIGNAL
++#define __ARCH_WANT_SYS_TIME
++#define __ARCH_WANT_SYS_UTIME
++#define __ARCH_WANT_SYS_WAITPID
++#define __ARCH_WANT_SYS_SOCKETCALL
++#define __ARCH_WANT_SYS_FADVISE64
++#define __ARCH_WANT_SYS_GETPGRP
++#define __ARCH_WANT_SYS_LLSEEK
++#define __ARCH_WANT_SYS_NICE
++#define __ARCH_WANT_SYS_OLD_GETRLIMIT
++#define __ARCH_WANT_SYS_OLDUMOUNT
++#define __ARCH_WANT_SYS_SIGPENDING
++#define __ARCH_WANT_SYS_SIGPROCMASK
++#define __ARCH_WANT_SYS_RT_SIGACTION
++
++/*
++ * "Conditional" syscalls
++ *
++ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
++ * but it doesn't work on all toolchains, so we just do it by hand
++ */
++//#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
++#define cond_syscall(x) long x(void)  __attribute__((weak,alias("sys_ni_syscall")))
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_UNISTD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/user.h
+@@ -0,0 +1,82 @@
++/*
++ * arch/ubicom32/include/asm/user.h
++ *   Ubicom32 architecture core file definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_USER_H
++#define _ASM_UBICOM32_USER_H
++
++#include <asm/ptrace.h>
++#include <asm/page.h>
++/*
++ * Adapted from <asm-powerpc/user.h>
++ *
++ * Core file format: The core file is written in such a way that gdb
++ * can understand it and provide useful information to the user (under
++ * linux we use the `trad-core' bfd, NOT the osf-core).  The file contents
++ * are as follows:
++ *
++ *  upage: 1 page consisting of a user struct that tells gdb
++ *	what is present in the file.  Directly after this is a
++ *	copy of the task_struct, which is currently not used by gdb,
++ *	but it may come in handy at some point.  All of the registers
++ *	are stored as part of the upage.  The upage should always be
++ *	only one page long.
++ *  data: The data segment follows next.  We use current->end_text to
++ *	current->brk to pick up all of the user variables, plus any memory
++ *	that may have been sbrk'ed.  No attempt is made to determine if a
++ *	page is demand-zero or if a page is totally unused, we just cover
++ *	the entire range.  All of the addresses are rounded in such a way
++ *	that an integral number of pages is written.
++ *  stack: We need the stack information in order to get a meaningful
++ *	backtrace.  We need to write the data from usp to
++ *	current->start_stack, so we round each of these in order to be able
++ *	to write an integer number of pages.
++ */
++
++struct user_ubicom32fp_struct {
++};
++
++struct user {
++	struct pt_regs	regs;			/* entire machine state */
++	size_t		u_tsize;		/* text size (pages) */
++	size_t		u_dsize;		/* data size (pages) */
++	size_t		u_ssize;		/* stack size (pages) */
++	unsigned long	start_code;		/* text starting address */
++	unsigned long	start_data;		/* data starting address */
++	unsigned long	start_stack;		/* stack starting address */
++	long int	signal;			/* signal causing core dump */
++	unsigned long	u_ar0;			/* help gdb find registers */
++	unsigned long	magic;			/* identifies a core file */
++	char		u_comm[32];		/* user command name */
++};
++
++#define NBPG			PAGE_SIZE
++#define UPAGES			1
++#define HOST_TEXT_START_ADDR	(u.start_code)
++#define HOST_DATA_START_ADDR	(u.start_data)
++#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
++
++#endif	/* _ASM_UBICOM32_USER_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/vdc_tio.h
+@@ -0,0 +1,129 @@
++/*
++ * arch/ubicom32/include/asm/vdc_tio.h
++ *   Ubicom32 architecture VDC TIO definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_VDC_TIO_H
++#define _ASM_UBICOM32_VDC_TIO_H
++
++#include <asm/devtree.h>
++
++#define VDCTIO_VP_VERSION			5
++
++#define VDCTIO_SCALE_FLAG_VSUB			(1 << 9)
++#define VDCTIO_SCALE_FLAG_YUV_SCAN_ORDER	(1 << 8)
++#define VDCTIO_SCALE_FLAG_YUV_BLOCK_ORDER	(1 << 7)
++#define VDCTIO_SCALE_FLAG_YUV			(1 << 6)
++#define VDCTIO_SCALE_FLAG_VRANGE_16_255		(1 << 5)
++#define VDCTIO_SCALE_FLAG_VRANGE_0_255		(1 << 4)
++#define VDCTIO_SCALE_FLAG_HSUB_2_1		(1 << 3)
++#define VDCTIO_SCALE_FLAG_HSUB_1_1		(1 << 2)
++#define VDCTIO_SCALE_FLAG_SET_FRAME_BUFFER	(1 << 1)
++#define VDCTIO_SCALE_FLAG_ENABLE		(1 << 0)
++
++#define VDCTIO_NEXT_FRAME_FLAG_YUV_BIT		0
++#define VDCTIO_NEXT_FRAME_FLAG_YUV		(1 << (VDCTIO_NEXT_FRAME_FLAG_YUV_BIT))
++
++#define VDCTIO_CAPS_SUPPORTS_SCALING		(1 << 0)
++
++#define VDCTIO_COMMAND_START			(1 << 3)
++#define VDCTIO_COMMAND_SET_COEFF		(1 << 2)
++#define VDCTIO_COMMAND_SET_LUT			(1 << 1)
++#define VDCTIO_COMMAND_SET_SCALE_MODE		(1 << 0)
++
++/*
++ * Command / Data registers to access the VDC
++ */
++struct vdc_tio_vp_regs {
++	/*
++	 * Version of this TIO register map
++	 */
++	u32_t		version;
++
++	volatile u32_t	command;
++
++	/*
++	 * Next frame pointer, when the command VDCTIO_COMMAND_SET_FRAME_BUFFER is set,
++	 * the vdc will take the pointer here and display it.
++	 */
++	void		*next_frame;
++	u32_t		next_frame_flags;
++
++	/*
++	 * These map directly into the PIXP registers 0x20-0x80.  
++	 * DO NOT change the order of these three variables.
++	 */
++	u32_t		red_lut[6];
++	u32_t		blue_lut[6];
++	u32_t		green_lut[13];
++
++	/*
++	 * These map directly into the PIXP registers 0x04, 0x08
++	 */
++	u32_t		coeff0;
++	u32_t		coeff1;
++
++	/*
++	 * There are used to set the scaling parameters
++	 */
++	u32_t		x_in;
++	u32_t		x_out;
++	u32_t		y_in;
++	u32_t		y_out;
++	u32_t		scale_flags;
++
++	/*
++	 * Current frame number, monotonically increasing number
++	 */
++	u32_t		frame_number;
++
++	/*
++	 * These variables tell the guest OS what the underlying hardware looks like
++	 */
++	u32_t		caps;
++	u32_t		xres;
++	u32_t		yres;
++	u32_t		fb_align;
++	u8_t		bpp;
++	u8_t		rbits;
++	u8_t		gbits;
++	u8_t		bbits;
++	u8_t		rshift;
++	u8_t		gshift;
++	u8_t		bshift;
++};
++
++/*
++ * Devtree node for VDC
++ */
++struct vdc_tio_node {
++	struct devtree_node	dn;
++
++	struct vdc_tio_vp_regs	*regs;
++};
++
++extern void vdc_tio_init(void);
++
++#endif /* _ASM_UBICOM32_VDC_TIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/vga.h
+@@ -0,0 +1,71 @@
++/*
++ * arch/ubicom32/include/asm/vga.h
++ *   Ubicom32 low level  VGA/frame buffer definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (c) 1998 Martin Mares <mj@ucw.cz>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_VGA_H
++#define _ASM_UBICOM32_VGA_H
++
++#include <asm/byteorder.h>
++
++/*
++ *	On the PC, we can just recalculate addresses and then
++ *	access the videoram directly without any black magic.
++ */
++
++#define VGA_MAP_MEM(x, s)	(0xb0000000L + (unsigned long)(x))
++
++#define vga_readb(x)	(*(x))
++#define vga_writeb(x, y)	(*(y) = (x))
++
++#define VT_BUF_HAVE_RW
++/*
++ *  These are only needed for supporting VGA or MDA text mode, which use little
++ *  endian byte ordering.
++ *  In other cases, we can optimize by using native byte ordering and
++ *  <linux/vt_buffer.h> has already done the right job for us.
++ */
++
++#undef scr_writew
++#undef scr_readw
++
++static inline void scr_writew(u16 val, volatile u16 *addr)
++{
++	*addr = cpu_to_le16(val);
++}
++
++static inline u16 scr_readw(volatile const u16 *addr)
++{
++	return le16_to_cpu(*addr);
++}
++
++#define scr_memcpyw(d, s, c) memcpy(d, s, c)
++#define scr_memmovew(d, s, c) memmove(d, s, c)
++#define VT_BUF_HAVE_MEMCPYW
++#define VT_BUF_HAVE_MEMMOVEW
++
++#endif /* _ASM_UBICOM32_VGA_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/xor.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/xor.h
++ *   Generic xor.h definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _ASM_UBICOM32_XOR_H
++#define _ASM_UBICOM32_XOR_H
++
++#include <asm-generic/xor.h>
++
++#endif /* _ASM_UBICOM32_XOR_H */
+--- /dev/null
++++ b/arch/ubicom32/Kconfig
+@@ -0,0 +1,455 @@
++#
++# For a description of the syntax of this configuration file,
++# see Documentation/kbuild/kconfig-language.txt.
++#
++
++mainmenu "uClinux/ubicom32 (w/o MMU) Kernel Configuration"
++
++config RAMBASE
++	hex
++	default "0x40000000"
++	help
++		Define the address that RAM starts at.
++
++config UBICOM32
++	bool
++	select HAVE_OPROFILE
++	default y
++
++config RAMKERNEL
++	bool
++	default y
++
++config CPU_BIG_ENDIAN
++	bool
++	default y
++
++config FORCE_MAX_ZONEORDER
++	int
++	default "14"
++
++config HAVE_CLK
++	bool
++	default y
++
++config MMU
++	bool
++	default n
++
++config FPU
++	bool
++	default n
++
++config ZONE_DMA
++	bool
++	default y
++
++config RWSEM_GENERIC_SPINLOCK
++	bool
++	default y
++
++config RWSEM_XCHGADD_ALGORITHM
++	bool
++	default n
++
++config ARCH_HAS_ILOG2_U32
++	bool
++	default n
++
++config ARCH_HAS_ILOG2_U64
++	bool
++	default n
++
++config GENERIC_FIND_NEXT_BIT
++	bool
++	default y
++
++config GENERIC_GPIO
++	bool
++	default y
++
++config GPIOLIB
++	bool
++	default y
++
++config GENERIC_HWEIGHT
++	bool
++	default y
++
++config GENERIC_HARDIRQS
++	bool
++	default y
++
++config STACKTRACE_SUPPORT
++	bool
++	default y
++
++config LOCKDEP_SUPPORT
++	bool
++	default y
++
++config GENERIC_CALIBRATE_DELAY
++	bool
++	default y
++
++config GENERIC_TIME
++	bool
++	default y
++
++config TIME_LOW_RES
++	bool
++	default y
++
++config GENERIC_CLOCKEVENTS
++	bool
++	default y
++
++config GENERIC_CLOCKEVENTS_BROADCAST
++	bool
++	depends on GENERIC_CLOCKEVENTS
++	default y if SMP && !LOCAL_TIMERS
++
++config NO_IOPORT
++	def_bool y
++
++config ARCH_SUPPORTS_AOUT
++	def_bool y
++
++config IRQ_PER_CPU
++	bool
++	default y
++
++config SCHED_NO_NO_OMIT_FRAME_POINTER
++	bool
++	default y
++
++menu "Processor type and features"
++
++config BRD_32MB
++	bool
++	depends on IP5160EVAL
++	help
++		Board has 32MB of RAM on it.  It is a hidden option used to select default for size of RAM
++	default n
++
++config BRD_64MB
++	bool
++	depends on IP7145DPF || IP7160RGW || IP7160BRINGUP || IP7160DPF || IP5170DPF || IP5160DEV
++	help
++		Board has 64MB of RAM on it.  It is a hidden option used to select default for size of RAM
++	default n
++
++config BRD_128MB
++	bool
++	depends on IP7500MODULE || IP7500AV || IP7500MEDIA
++	help
++		Board has 128MB of RAM on it.  It is a hidden option used to select default for size of RAM
++	default n
++
++comment "Processor type will be selected by Board"
++
++config UBICOM32_V3
++	bool
++	help
++	  Ubicom IP5xxx series processor support.
++
++config UBICOM32_V4
++	bool
++	help
++	  Ubicom IP7xxx series processor support.
++
++comment "Board"
++choice
++	prompt "Board type"
++	help
++		Select your board.
++
++config NOBOARD
++	bool "No board selected"
++	help
++		Default. Don't select any board specific config. Will not build unless you change!
++
++# Add your boards here
++source "arch/ubicom32/mach-ip5k/Kconfig"
++source "arch/ubicom32/mach-ip7k/Kconfig"
++
++endchoice
++
++comment "Kernel Options"
++config SMP
++	bool "Symmetric multi-processing support"
++	select USE_GENERIC_SMP_HELPERS
++	default n
++	help
++	  Enables multithreading support.  Enabling SMP support increases
++	  the size of system data structures.  SMP support can have either 
++	  positive or negative impact on performance depending on workloads. 
++
++	  If you do not know what to do here, say N.
++
++config NR_CPUS
++	int "Number of configured CPUs"
++	range 2 32
++	default 2
++	depends on SMP
++	help
++		Upper bound on the number of CPUs. Space is reserved 
++		at compile time for this many CPUs.
++		
++config LOCAL_TIMERS
++	bool "Use local timer interrupts"
++	depends on SMP
++	default y
++	help
++	  Enable support for local timers on SMP platforms, rather then the
++	  legacy IPI broadcast method.  Local timers allows the system
++	  accounting to be spread across the timer interval, preventing a
++	  "thundering herd" at every timer tick.  A physical timer is allocated
++	  per cpu.		
++
++config TIMER_EXTRA_ALLOC
++	int "Number of additional physical timer events to create"
++	depends on GENERIC_CLOCKEVENTS
++	default 0
++	help
++		The Ubicom32 processor has a number of event timers that can be wrapped
++		in Linux clock event structures (assuming that the timers are not being
++		used for another purpose).  Based on the value of LOCAL_TIMERS, either 
++		2 timers will be used or a timer will be used for every CPU.  This value
++		allows the programmer to select additional timers over that amount.
++			
++config IRQSTACKS
++	bool "Create separate stacks for interrupt handling"
++	default n
++	help
++		Selecting this causes interrupts to be created on a separate
++		stack instead of nesting the interrupts on the kernel stack.
++		
++config IRQSTACKS_USEOCM
++	bool "Use OCM for interrupt stacks"
++	default n
++	depends on IRQSTACKS
++	help
++		Selecting this cause the interrupt stacks to be placed in OCM
++		reducing cache misses at the expense of using the OCM for servicing
++		interrupts.
++
++menu "OCM Instruction Heap"
++
++config OCM_MODULES_RESERVATION
++	int "OCM Instruction heap reservation. 0-192 kB"
++	range 0 192
++	default "0"
++	help
++	  The minimum amount of OCM memory to reserve for kernel loadable module
++	  code. If you are not using this memory it cannot be used for anything
++	  else. Leave it as 0 if you have prebuilt modules that are compiled with
++	  OCM support.
++
++config OCM_MODULES_MAY_CONSUME_REMAINING_CODESPACE
++	bool "Give all unused ocm code space to the ocm instruction heap."
++	default n
++	help
++	  Allow the OCM instruction heap allocation to consume any remaining
++	  unused OCM code space.  The result of this is that you will not have
++	  and deterministic results, but you will not have any waste either.
++
++config OCM_MODULES_FALLBACK_TO_DDR
++	bool "Loadable Modules requiring OCM may fallback to use DDR."
++	default n
++	help
++	  If a module cannot get the OCM code it requires allow DDR to
++	  be used instead.
++endmenu
++
++config HZ
++	int "Frequency of 'jiffies' (for polling)"
++	default 1000
++	help
++		100 is common for embedded systems, but 1000 allows
++		you to do more drivers without actually having
++		interrupts working properly.
++
++comment "RAM configuration"
++
++if BRD_32MB
++
++config RAMSIZE
++	hex "Size of RAM (in bytes)"
++	range 0x00000000 0x02000000
++	default "0x02000000"
++	help
++		Define the size of the system RAM. If you select 0 then the
++		kernel will try to probe the RAM size at runtime. This is not
++		supported on all CPU types.
++
++endif
++
++if BRD_64MB
++
++config RAMSIZE
++	hex "Size of RAM (in bytes)"
++	range 0x00000000 0x04000000
++	default "0x04000000"
++	help
++		Define the size of the system RAM. If you select 0 then the
++		kernel will try to probe the RAM size at runtime. This is not
++		supported on all CPU types.
++
++endif
++
++if BRD_128MB
++
++config RAMSIZE
++	hex "Size of RAM (in bytes)"
++	range 0x00000000 0x08000000
++	default "0x08000000"
++	help
++		Define the size of the system RAM. If you select 0 then the
++		kernel will try to probe the RAM size at runtime. This is not
++		supported on all CPU types.
++
++endif
++
++config KERNELBASE
++	hex "Address of the base of kernel code"
++	default "0x40400000"
++	help
++		For the time being we are going to start the Kernel at a 4 meg offset.
++
++comment "Build options"
++config LINKER_RELAXATION
++	bool "Linker Relaxation"
++	default y
++	help
++	  Turns on linker relaxation that will produce smaller
++	  faster code. Increases link time.
++
++comment "Driver options"
++menu "PCI Bus"
++config PCI
++	bool "PCI bus"
++	default true
++	help
++	  Enable/Disable PCI bus
++	source "drivers/pci/Kconfig"
++
++
++config PCI_DEV0_IDSEL
++	hex "slot 0 address"
++	depends on PCI
++	default "0x01000000"
++	help
++	  Slot 0 address.  This address should correspond to the address line
++	  which the IDSEL bit for this slot is connected to.
++
++config PCI_DEV1_IDSEL
++	hex "slot 1 address"
++	depends on PCI
++	default "0x02000000"
++	help
++	  Slot 1 address.  This address should correspond to the address line
++	  which the IDSEL bit for this slot is connected to.
++endmenu
++# End PCI
++
++menu "Input devices"
++config UBICOM_INPUT
++	bool "Ubicom polled GPIO input driver"
++	select INPUT
++	select INPUT_POLLDEV
++	help
++		Polling input driver, much like the GPIO input driver, except that it doesn't
++		rely on interrupts.  It will report events via the input subsystem.
++	default n
++
++config UBICOM_INPUT_I2C
++	bool "Ubicom polled GPIO input driver over I2C"
++	select INPUT
++	select INPUT_POLLDEV
++	help
++		Polling input driver, much like the PCA953x driver, it can support a variety of
++		different I2C I/O expanders.  This device polls the I2C I/O expander for events
++		and reports them via the input subsystem.
++	default n
++endmenu
++# Input devices
++
++menu "Misc devices"
++config UBICOM_HID
++	bool "Ubicom HID driver"
++	select INPUT
++	select INPUT_POLLDEV
++	select LCD_CLASS_DEVICE
++	help
++		Driver for HID chip found on some Ubicom reference designs.  This chip handles
++		PWM, button input, and IR remote control.  It registers as an input device and
++		a backlight device.
++	default n
++endmenu
++# Misc devices
++
++config CMDLINE_BOOL
++	bool "Built-in kernel command line"
++	default n
++	help
++	  Allow for specifying boot arguments to the kernel at
++	  build time.  On some systems (e.g. embedded ones), it is
++	  necessary or convenient to provide some or all of the
++	  kernel boot arguments with the kernel itself (that is,
++	  to not rely on the boot loader to provide them.)
++
++	  To compile command line arguments into the kernel,
++	  set this option to 'Y', then fill in the
++	  the boot arguments in CONFIG_CMDLINE.
++
++	  Systems with fully functional boot loaders (i.e. non-embedded)
++	  should leave this option set to 'N'.
++
++config CMDLINE
++	string "Built-in kernel command string"
++	depends on CMDLINE_BOOL
++	default ""
++	help
++	  Enter arguments here that should be compiled into the kernel
++	  image and used at boot time.  If the boot loader provides a
++	  command line at boot time, it is appended to this string to
++	  form the full kernel command line, when the system boots.
++
++	  However, you can use the CONFIG_CMDLINE_OVERRIDE option to
++	  change this behavior.
++
++	  In most cases, the command line (whether built-in or provided
++	  by the boot loader) should specify the device for the root
++	  file system.
++
++config CMDLINE_OVERRIDE
++	bool "Built-in command line overrides boot loader arguments"
++	default n
++	depends on CMDLINE_BOOL
++	help
++	  Set this option to 'Y' to have the kernel ignore the boot loader
++	  command line, and use ONLY the built-in command line.
++
++	  This is used to work around broken boot loaders.  This should
++	  be set to 'N' under normal conditions.
++
++endmenu
++# End Processor type and features
++
++source "arch/ubicom32/Kconfig.debug"
++
++menu "Executable file formats"
++source "fs/Kconfig.binfmt"
++endmenu
++
++source "init/Kconfig"
++source "kernel/Kconfig.preempt"
++source "kernel/time/Kconfig"
++source "mm/Kconfig"
++source "net/Kconfig"
++source "drivers/Kconfig"
++source "fs/Kconfig"
++source "security/Kconfig"
++source "crypto/Kconfig"
++source "lib/Kconfig"
+--- /dev/null
++++ b/arch/ubicom32/Kconfig.debug
+@@ -0,0 +1,117 @@
++menu "Kernel hacking"
++
++config TRACE_IRQFLAGS_SUPPORT
++	def_bool y
++	
++config PROTECT_KERNEL
++	default y
++	bool 'Enable Kernel range register Protection'
++	help
++	  Adds code to enable/disable range registers to protect static
++	  kernel code/data from userspace.  Currently the ranges covered
++	  do no protect kernel loadable modules or dynamically allocated
++	  kernel data.
++
++config NO_KERNEL_MSG
++	bool "Suppress Kernel BUG Messages"
++	help
++	  Do not output any debug BUG messages within the kernel.
++
++config EARLY_PRINTK
++	bool "Use the driver that you selected as console also for early printk (to debug kernel bootup)."
++	default n
++	help
++	  If you want to use the serdes driver (console=ttyUS0) for
++	  early printk, you must also supply an additional kernel boot
++	  parameter like this:
++
++		serdes=ioportaddr,irq,clockrate,baud
++
++	  For an IP7160RGW eval board, you could use this:
++
++		serdes=0x2004000,61,250000000,57600
++
++	  which will let you see early printk output at 57600 baud.
++
++config STOP_ON_TRAP
++	bool "Enable stopping at the LDSR for all traps"
++	default n
++	help
++	Cause the LDSR to stop all threads whenever a trap is about to be serviced
++	
++config STOP_ON_BUG
++	bool "Enable stopping on failed BUG_ON()"
++	default n
++	help
++	Cause all BUG_ON failures to stop all threads
++	
++config DEBUG_IRQMEASURE
++	bool "Enable IRQ handler measurements"
++	default n
++	help
++	When enabled each IRQ's min/avg/max times will be printed.  If the handler
++	re-enables interrupt, the times will show the full time including to service
++	nested interrupts.  See /proc/irq_measurements.
++	
++config DEBUG_PCIMEASURE
++	bool "Enable PCI transaction measurements"
++	default n
++	help
++	When enabled the system will measure the min/avg/max timer for each PCI transactions.
++	See /proc/pci_measurements.
++
++config ACCESS_OK_CHECKS_ENABLED
++	bool "Enable user space access checks"
++	default n
++	help
++	Enabling this check causes the kernel to verify that addresses passed
++	to the kernel by the user space code are within the processes 
++	address space.  On a no-mmu system, this is done by examining the
++	processes memory data structures (adversly affecting performance) but
++	ensuring that a process does not ask the kernel to violate another 
++	processes address space.  Sadly, the kernel uses access_ok() for 
++	address that are in the kernel which results in a large volume of 
++	false positives.
++
++choice
++	prompt "Unaligned Access Support"
++	default UNALIGNED_ACCESS_ENABLED
++	help
++		Kernel / Userspace unaligned access handling.
++
++config  UNALIGNED_ACCESS_ENABLED
++	bool "Kernel and Userspace"
++	help
++
++config  UNALIGNED_ACCESS_USERSPACE_ONLY
++	bool "Userspace Only"
++	help
++
++config  UNALIGNED_ACCESS_DISABLED
++	bool "Disabled"
++	help
++
++endchoice
++
++config DEBUG_STACKOVERFLOW
++	bool "Check for stack overflows"
++	default n
++	depends on DEBUG_KERNEL
++	help
++	  This option will cause messages to be printed if free kernel stack space
++	  drops below a certain limit (THREAD_SIZE /8).
++
++config DEBUG_STACK_USAGE
++	bool "Stack utilization instrumentation"
++	default n
++	depends on DEBUG_KERNEL
++	help
++	  Enables the display of the minimum amount of free kernel stack which each
++	  task has ever had available in the sysrq-T and sysrq-P debug output.
++
++	  This option will slow down process creation somewhat.
++
++source "lib/Kconfig.debug"
++
++endmenu
++
+--- /dev/null
++++ b/arch/ubicom32/kernel/asm-offsets.c
+@@ -0,0 +1,162 @@
++/*
++ * arch/ubicom32/kernel/asm-offsets.c
++ *   Ubicom32 architecture definitions needed by assembly language modules.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++/*
++ * This program is used to generate definitions needed by
++ * assembly language modules.
++ *
++ * We use the technique used in the OSF Mach kernel code:
++ * generate asm statements containing #defines,
++ * compile this file to assembler, and then extract the
++ * #defines from the assembly-language output.
++ */
++
++#include <linux/module.h>
++#include <linux/stddef.h>
++#include <linux/sched.h>
++#include <linux/kernel_stat.h>
++#include <linux/ptrace.h>
++#include <linux/hardirq.h>
++#include <asm/bootinfo.h>
++#include <asm/irq.h>
++#include <asm/thread_info.h>
++
++#define DEFINE(sym, val) \
++        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
++
++#define BLANK() asm volatile("\n->" : : )
++
++int main(void)
++{
++	/* offsets into the task struct */
++	DEFINE(TASK_STATE, offsetof(struct task_struct, state));
++	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
++	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
++	DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
++	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
++	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
++	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
++	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
++
++	/* offsets into the kernel_stat struct */
++	DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
++
++	/* offsets into the irq_cpustat_t struct */
++	DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
++
++	/* offsets into the thread struct */
++	DEFINE(THREAD_D10, offsetof(struct thread_struct, d10));
++	DEFINE(THREAD_D11, offsetof(struct thread_struct, d11));
++	DEFINE(THREAD_D12, offsetof(struct thread_struct, d12));
++	DEFINE(THREAD_D13, offsetof(struct thread_struct, d13));
++	DEFINE(THREAD_A1, offsetof(struct thread_struct, a1));
++	DEFINE(THREAD_A2, offsetof(struct thread_struct, a2));
++	DEFINE(THREAD_A5, offsetof(struct thread_struct, a5));
++	DEFINE(THREAD_A6, offsetof(struct thread_struct, a6));
++	DEFINE(THREAD_SP, offsetof(struct thread_struct, sp));
++
++	/* offsets into the pt_regs */
++	DEFINE(PT_D0, offsetof(struct pt_regs, dn[0]));
++	DEFINE(PT_D1, offsetof(struct pt_regs, dn[1]));
++	DEFINE(PT_D2, offsetof(struct pt_regs, dn[2]));
++	DEFINE(PT_D3, offsetof(struct pt_regs, dn[3]));
++	DEFINE(PT_D4, offsetof(struct pt_regs, dn[4]));
++	DEFINE(PT_D5, offsetof(struct pt_regs, dn[5]));
++	DEFINE(PT_D6, offsetof(struct pt_regs, dn[6]));
++	DEFINE(PT_D7, offsetof(struct pt_regs, dn[7]));
++	DEFINE(PT_D8, offsetof(struct pt_regs, dn[8]));
++	DEFINE(PT_D9, offsetof(struct pt_regs, dn[9]));
++	DEFINE(PT_D10, offsetof(struct pt_regs, dn[10]));
++	DEFINE(PT_D11, offsetof(struct pt_regs, dn[11]));
++	DEFINE(PT_D12, offsetof(struct pt_regs, dn[12]));
++	DEFINE(PT_D13, offsetof(struct pt_regs, dn[13]));
++	DEFINE(PT_D14, offsetof(struct pt_regs, dn[14]));
++	DEFINE(PT_D15, offsetof(struct pt_regs, dn[15]));
++	DEFINE(PT_A0, offsetof(struct pt_regs, an[0]));
++	DEFINE(PT_A1, offsetof(struct pt_regs, an[1]));
++	DEFINE(PT_A2, offsetof(struct pt_regs, an[2]));
++	DEFINE(PT_A3, offsetof(struct pt_regs, an[3]));
++	DEFINE(PT_A4, offsetof(struct pt_regs, an[4]));
++	DEFINE(PT_A5, offsetof(struct pt_regs, an[5]));
++	DEFINE(PT_A6, offsetof(struct pt_regs, an[6]));
++	DEFINE(PT_A7, offsetof(struct pt_regs, an[7]));
++	DEFINE(PT_SP, offsetof(struct pt_regs, an[7]));
++
++	DEFINE(PT_ACC0HI, offsetof(struct pt_regs, acc0[0]));
++	DEFINE(PT_ACC0LO, offsetof(struct pt_regs, acc0[1]));
++	DEFINE(PT_MAC_RC16, offsetof(struct pt_regs, mac_rc16));
++
++	DEFINE(PT_ACC1HI, offsetof(struct pt_regs, acc1[0]));
++	DEFINE(PT_ACC1LO, offsetof(struct pt_regs, acc1[1]));
++
++	DEFINE(PT_SOURCE3, offsetof(struct pt_regs, source3));
++	DEFINE(PT_INST_CNT, offsetof(struct pt_regs, inst_cnt));
++	DEFINE(PT_CSR, offsetof(struct pt_regs, csr));
++	DEFINE(PT_DUMMY_UNUSED, offsetof(struct pt_regs, dummy_unused));
++
++	DEFINE(PT_INT_MASK0, offsetof(struct pt_regs, int_mask0));
++	DEFINE(PT_INT_MASK1, offsetof(struct pt_regs, int_mask1));
++
++	DEFINE(PT_PC, offsetof(struct pt_regs, pc));
++
++	DEFINE(PT_TRAP_CAUSE, offsetof(struct pt_regs, trap_cause));
++
++	DEFINE(PT_SIZE, sizeof(struct pt_regs));
++
++	DEFINE(PT_FRAME_TYPE, offsetof(struct pt_regs, frame_type));
++
++	DEFINE(PT_ORIGINAL_D0, offsetof(struct pt_regs, original_dn_0));
++	DEFINE(PT_PREVIOUS_PC, offsetof(struct pt_regs, previous_pc));
++
++	/* offsets into the kernel_stat struct */
++	DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
++
++	/* signal defines */
++	DEFINE(SIGSEGV, SIGSEGV);
++	//DEFINE(SEGV_MAPERR, SEGV_MAPERR);
++	DEFINE(SIGTRAP, SIGTRAP);
++	//DEFINE(TRAP_TRACE, TRAP_TRACE);
++
++	DEFINE(PT_PTRACED, PT_PTRACED);
++	DEFINE(PT_DTRACE, PT_DTRACE);
++
++	DEFINE(ASM_THREAD_SIZE, THREAD_SIZE);
++
++	/* Offsets in thread_info structure */
++	DEFINE(TI_TASK, offsetof(struct thread_info, task));
++	DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
++	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
++	DEFINE(TI_PREEMPTCOUNT, offsetof(struct thread_info, preempt_count));
++	DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
++	DEFINE(TI_INTR_NESTING, offsetof(struct thread_info, interrupt_nesting));
++	DEFINE(ASM_TIF_NEED_RESCHED, TIF_NEED_RESCHED);
++	DEFINE(ASM_TIF_SYSCALL_TRACE, TIF_SYSCALL_TRACE);
++	DEFINE(ASM_TIF_SIGPENDING, TIF_SIGPENDING);
++
++	DEFINE(ASM_RAM_END, (CONFIG_RAMBASE + CONFIG_RAMSIZE));
++	return 0;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/devtree.c
+@@ -0,0 +1,173 @@
++/*
++ * arch/ubicom32/kernel/devtree.c
++ *   Ubicom32 architecture device tree implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/errno.h>
++#include <asm/devtree.h>
++
++/*
++ * The device tree.
++ */
++struct devtree_node *devtree;
++
++/*
++ * devtree_print()
++ *	Print the device tree.
++ */
++void devtree_print(void)
++{
++	struct devtree_node *p = devtree;
++	printk(KERN_INFO "Device Tree:\n");
++	while (p) {
++		if (p->magic != DEVTREE_NODE_MAGIC) {
++			printk(KERN_EMERG
++			       "device tree has improper node: %p\n", p);
++			return;
++		}
++		printk(KERN_INFO "\t%p: sendirq=%03d, recvirq=%03d, "
++		       " name=%s\n", p, p->sendirq, p->recvirq, p->name);
++		p = p->next;
++	}
++}
++EXPORT_SYMBOL(devtree_print);
++
++/*
++ * devtree_irq()
++ *	Return the IRQ(s) associated with devtree node.
++ */
++int devtree_irq(struct devtree_node *dn,
++		unsigned char *sendirq,
++		unsigned char *recvirq)
++{
++	if (dn->magic != DEVTREE_NODE_MAGIC) {
++		printk(KERN_EMERG "improper node: %p\n", dn);
++		if (sendirq) {
++			*sendirq = DEVTREE_IRQ_NONE;
++		}
++		if (recvirq) {
++			*recvirq = DEVTREE_IRQ_NONE;
++		}
++		return -EFAULT;
++	}
++
++	/*
++	 * Copy the devtree irq(s) to the output parameters.
++	 */
++	if (sendirq) {
++		*sendirq = dn->sendirq;
++	}
++	if (recvirq) {
++		*recvirq = dn->recvirq;
++	}
++	return 0;
++}
++EXPORT_SYMBOL(devtree_irq);
++
++/*
++ * devtree_find_next()
++ *	Provide an iterator for walking the device tree.
++ */
++struct devtree_node *devtree_find_next(struct devtree_node **cur)
++{
++	struct devtree_node *p = *cur;
++	if (!p) {
++		*cur = devtree;
++		return devtree;
++	}
++	p = p->next;
++	*cur = p;
++	return p;
++}
++
++/*
++ * devtree_find_by_irq()
++ *	Return the node associated with a given irq.
++ */
++struct devtree_node *devtree_find_by_irq(uint8_t sendirq, uint8_t recvirq)
++{
++	struct devtree_node *p = devtree;
++
++	if (sendirq == recvirq) {
++		printk(KERN_EMERG "identical request makes no sense sendirq = "
++		       "%d, recvirq= %d\n", sendirq, recvirq);
++		return NULL;
++	}
++
++	while (p) {
++		if (p->magic != DEVTREE_NODE_MAGIC) {
++			printk(KERN_EMERG
++			       "device tree has improper node: %p\n", p);
++			return NULL;
++		}
++
++		/*
++		 * See if we can find a match on the IRQ(s) specified.
++		 */
++		if ((sendirq == p->sendirq) && (recvirq == p->recvirq)) {
++			return p;
++		}
++
++		if ((sendirq == DEVTREE_IRQ_DONTCARE) &&
++		    (p->recvirq == recvirq)) {
++			return p;
++		}
++
++		if ((recvirq == DEVTREE_IRQ_DONTCARE) &&
++		    (p->sendirq == sendirq)) {
++			return p;
++		}
++
++		p = p->next;
++	}
++	return NULL;
++}
++EXPORT_SYMBOL(devtree_find_by_irq);
++
++/*
++ * devtree_find_node()
++ *	Find a node in the device tree by name.
++ */
++struct devtree_node *devtree_find_node(const char *str)
++{
++	struct devtree_node *p = devtree;
++	while (p) {
++		if (p->magic != DEVTREE_NODE_MAGIC) {
++			printk(KERN_EMERG
++			       "device tree has improper node: %p\n", p);
++			return NULL;
++		}
++		if (strcmp(p->name, str) == 0) {
++			return p;
++		}
++		p = p->next;
++	}
++	return NULL;
++}
++EXPORT_SYMBOL(devtree_find_node);
+--- /dev/null
++++ b/arch/ubicom32/kernel/dma.c
+@@ -0,0 +1,60 @@
++/*
++ * arch/ubicom32/kernel/dma.c
++ *   Ubicom32 architecture dynamic DMA mapping support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *
++ * We never have any address translations to worry about, so this
++ * is just alloc/free.
++ */
++
++#include <linux/types.h>
++#include <linux/mm.h>
++#include <linux/string.h>
++#include <linux/device.h>
++#include <linux/io.h>
++
++void *dma_alloc_coherent(struct device *dev, size_t size,
++			   dma_addr_t *dma_handle, int gfp)
++{
++	void *ret;
++	/* ignore region specifiers */
++	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
++
++	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
++		gfp |= GFP_DMA;
++	ret = (void *)__get_free_pages(gfp, get_order(size));
++
++	if (ret != NULL) {
++		memset(ret, 0, size);
++		*dma_handle = virt_to_phys(ret);
++	}
++	return ret;
++}
++
++void dma_free_coherent(struct device *dev, size_t size,
++			 void *vaddr, dma_addr_t dma_handle)
++{
++	free_pages((unsigned long)vaddr, get_order(size));
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/flat.c
+@@ -0,0 +1,206 @@
++/*
++ * arch/ubicom32/kernel/flat.c
++ *   Ubicom32 architecture flat executable format support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/flat.h>
++
++unsigned long ubicom32_flat_get_addr_from_rp(unsigned long *rp,
++					     u32_t relval,
++					     u32_t flags,
++					     unsigned long *persistent)
++{
++	u32_t relval_reloc_type = relval >> 27;
++	u32_t insn = *rp;
++
++	if (*persistent) {
++		/*
++		 * relval holds the relocation that has to be adjusted.
++		 */
++		if (relval == 0) {
++			*persistent = 0;
++		}
++
++		return relval;
++	}
++
++	if (relval_reloc_type == R_UBICOM32_32) {
++		/*
++		 * insn holds the relocation
++		 */
++		return insn;
++	}
++
++	/*
++	 * We don't know this one.
++	 */
++	return 0;
++}
++
++void ubicom32_flat_put_addr_at_rp(unsigned long *rp,
++				  u32_t val,
++				  u32_t relval,
++				  unsigned long *persistent)
++{
++	u32_t reloc_type = (relval >> 27) & 0x1f;
++	u32_t insn = *rp;
++
++	/*
++	 * If persistent is set then it contains the relocation type.
++	 */
++	if (*persistent) {
++		/*
++		 * If persistent is set then it contains the relocation type.
++		 */
++		reloc_type = (*persistent >> 27) & 0x1f;
++	}
++
++	switch (reloc_type) {
++	case R_UBICOM32_32:
++		/*
++		 * Store the 32 bits as is.
++		 */
++		*rp = val;
++		break;
++	case R_UBICOM32_HI24:
++		{
++			/*
++			 * 24 bit relocation that is part of the MOVEAI
++			 * instruction. The 24 bits come from bits 7 - 30 of the
++			 * relocation. The 24 bits eventually get split into 2
++			 * fields in the instruction encoding.
++			 *
++			 * - Bits 7 - 27 of the relocation are encoded into bits
++			 * 0 - 20 of the instruction.
++			 *
++			 * - Bits 28 - 30 of the relocation are encoded into bit
++			 * 24 - 26 of the instruction.
++			 */
++			u32_t mask = 0x1fffff | (0x7 << 24);
++			u32_t valid24bits = (val >> 7) & 0xffffff;
++			u32_t bot_21 = valid24bits & 0x1fffff;
++			u32_t upper_3_bits = ((valid24bits & 0xe00000) << 3);
++			insn &= ~mask;
++
++			insn |= bot_21;
++			insn |= upper_3_bits;
++			*rp = insn;
++		}
++		break;
++	case R_UBICOM32_LO7_S:
++	case R_UBICOM32_LO7_2_S:
++	case R_UBICOM32_LO7_4_S:
++		{
++			/*
++			 * Bits 0 - 6 of the relocation are encoded into the
++			 * 7bit unsigned immediate fields of the SOURCE-1 field
++			 * of the instruction.  The immediate value is left
++			 * shifted by (0, 1, 2) based on the operand size.
++			 */
++			u32_t mask = 0x1f | (0x3 << 8);
++			u32_t bottom, top;
++			val &= 0x7f;
++			if (reloc_type == R_UBICOM32_LO7_2_S) {
++				val >>= 1;
++			} else if (reloc_type == R_UBICOM32_LO7_4_S) {
++				val >>= 2;
++			}
++
++			bottom  = val & 0x1f;
++			top = val >> 5;
++			insn &= ~mask;
++			insn |= bottom;
++			insn |= (top << 8);
++			BUG_ON(*rp != insn);
++			*rp = insn;
++			break;
++		}
++	case R_UBICOM32_LO7_D:
++	case R_UBICOM32_LO7_2_D:
++	case R_UBICOM32_LO7_4_D:
++		{
++			/*
++			 * Bits 0 - 6 of the relocation are encoded into the
++			 * 7bit unsigned immediate fields of the DESTINATION
++			 * field of the instruction.  The immediate value is
++			 * left shifted by (0, 1, 2) based on the operand size.
++			 */
++			u32_t mask = (0x1f | (0x3 << 8)) << 16;
++			u32_t bottom, top;
++			val &= 0x7f;
++			if (reloc_type == R_UBICOM32_LO7_2_D) {
++				val >>= 1;
++			} else if (reloc_type == R_UBICOM32_LO7_4_D) {
++				val >>= 2;
++			}
++			bottom  = (val & 0x1f) << 16;
++			top = (val >> 5) << 16;
++			insn &= ~mask;
++			insn |= bottom;
++			insn |= (top << 8);
++			BUG_ON(*rp != insn);
++			*rp = insn;
++			break;
++		}
++	case R_UBICOM32_LO7_CALLI:
++	case R_UBICOM32_LO16_CALLI:
++		{
++			/*
++			 * Extract the offset for a CALLI instruction. The
++			 * offsets can be either 7 bits or 18 bits. Since all
++			 * instructions in ubicom32 architecture are at work
++			 * aligned addresses the truncated offset is right
++			 * shifted by 2 before being encoded in the instruction.
++			 */
++			if (reloc_type == R_UBICOM32_LO7_CALLI) {
++				val &= 0x7f;
++			} else {
++				val &= 0x3ffff;
++			}
++
++			val >>= 2;
++
++			insn &= ~0x071f071f;
++			insn |= (val & 0x1f) << 0;
++			val >>= 5;
++			insn |= (val & 0x07) << 8;
++			val >>= 3;
++			insn |= (val & 0x1f) << 16;
++			val >>= 5;
++			insn |= (val & 0x07) << 24;
++			if (reloc_type == R_UBICOM32_LO7_CALLI) {
++				BUG_ON(*rp != insn);
++			}
++			*rp = insn;
++		}
++		break;
++	}
++
++	if (*persistent) {
++		*persistent = 0;
++	}
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/head.S
+@@ -0,0 +1,247 @@
++/*
++ * arch/ubicom32/kernel/head.S
++ *	<TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/sys.h>
++#include <linux/linkage.h>
++#include <asm/asm-offsets.h>
++#include <asm/page_offset.h>
++#define __ASM__
++#include <asm/ip5000.h>
++
++
++#define SRC_AN A3
++#define DST_AN A4
++
++#define PARAM_DN D0
++#define TMP_DN D15
++#define TMP2_DN D14
++
++/*
++ * The following code is placed at the start of the Linux section of memory.
++ * This is the primary entry point for Linux.
++ *
++ * However, we also want the syscall entry/exit code to be at a fixed address.
++ * So we take the primary entry point and reserve 16 bytes.  That address is
++ * where the system_call entry point exists.  This 16 bytes basically allows
++ * us to jump around the system_call entry point code to the actual startup
++ * code.
++ *
++ * Linux Memory Map (see vlinux.lds.S):
++ * 0x40400000 - Primary Entry Point for Linux (jump around code below).
++ * 0x40400010 - Syscall Entry Point.
++ */
++
++	.sect	.skip_syscall, "ax", @progbits
++	.global	__skip_syscall_section
++__skip_syscall_section:
++	moveai		A3, #%hi(_start)
++	lea.1		A3, %lo(_start)(A3)
++	ret		A3
++/*
++ * __os_node_offset contains the offset from KERNELBASE to the os_node, it is
++ * not intended to be used by anything except the boot code.
++ */
++__os_node_offset:
++.long	(_os_node - CONFIG_KERNELBASE)
++
++.text
++.global	_start
++
++/*
++ * start()
++ *	This is the start of the Linux kernel.
++ */
++_start:
++	move.4		SCRATCHPAD1, #0
++
++
++/*
++ * Setup the range registers... the loader has setup a few, but we will go ahead
++ * and correct them for our own limits. Note that once set these are never
++ * changed again.  The ranges are as follows
++ *
++ *  D_RANGE0 - io block (set up by loaded)
++ *
++ *  I_RANGE0 and D_RANGE1 - kernel/ultra loader address space bottom of ocm-> top
++ *	of ram typically 0x3ffc0000 - 0x440000000
++ *  I_RANGE1 - kernel / userspace transition area (aka syscalls, context switches)
++ *	typically 0x40400000 - ~0x40400400
++ *  I_RANGE2 / D_RANGE2 - slab area
++ *	typically 0x40A00000 - ~0x44000000
++ *
++ *  I_RANGE4, D_RANGE3, D_RANGE3 - unused.
++ */
++	moveai		SRC_AN, #%hi(PAGE_OFFSET_RAW)
++	lea.4		SRC_AN, %lo(PAGE_OFFSET_RAW)(SRC_AN)
++	move.4		D_RANGE1_LO, SRC_AN
++	move.4		I_RANGE0_LO, SRC_AN
++
++; don't try to calculate I_RANGE_HI, see below
++;	moveai		SRC_AN, #%hi(___init_end-4)
++;	lea.4		SRC_AN, %lo(___init_end-4)(SRC_AN)
++;	move.4		I_RANGE0_HI, SRC_AN
++
++	moveai		SRC_AN, #%hi(CONFIG_RAMBASE+CONFIG_RAMSIZE-4)
++	lea.4		SRC_AN, %lo(CONFIG_RAMBASE+CONFIG_RAMSIZE-4)(SRC_AN)
++	move.4		D_RANGE1_HI, SRC_AN
++
++; for now allow the whole ram to be executable as well so we don't run into problems
++; once we load user more code.
++	move.4		I_RANGE0_HI, SRC_AN
++
++#ifdef CONFIG_PROTECT_KERNEL
++; when kernel protection is enabled, we only open up syscall and non kernel text
++; for userspace apps, for now only irange registers registers 1 and 2 are used for userspace.
++
++	;; syscall range
++	moveai		SRC_AN, #%hi(_begin)
++	lea.4		SRC_AN, %lo(_begin)(SRC_AN)
++	move.4		I_RANGE1_LO, SRC_AN
++	moveai		SRC_AN, #%hi(__fixed_text_end)
++	lea.4		SRC_AN, %lo(__fixed_text_end)(SRC_AN)
++	move.4		I_RANGE1_HI, SRC_AN
++
++	;; slab instructions
++	moveai		SRC_AN, #%hi(_edata)
++	lea.4		SRC_AN, %lo(_edata)(SRC_AN)
++	move.4		I_RANGE2_LO, SRC_AN
++	;; End of DDR is already in range0 hi so just copy it.
++	move.4		I_RANGE2_HI, I_RANGE0_HI
++
++	;; slab data (same as slab instructions but starting a little earlier).
++	moveai		SRC_AN, #%hi(_data_protection_end)
++	lea.4		SRC_AN, %lo(_data_protection_end)(SRC_AN)
++	move.4		D_RANGE2_LO, SRC_AN
++	move.4		D_RANGE2_HI, I_RANGE0_HI
++
++;; enable ranges
++	;; skip I_RANGE0_EN
++	move.4		I_RANGE1_EN, #-1
++	move.4		I_RANGE2_EN, #-1
++	move.4		I_RANGE3_EN, #0
++
++	;; skip D_RANGE0_EN or D_RANGE1_EN
++	move.4		D_RANGE2_EN, #-1
++	move.4		D_RANGE3_EN, #0
++	move.4		D_RANGE4_EN, #0
++#endif
++
++;
++; If __ocm_free_begin is smaller than __ocm_free_end the
++; setup OCM text and data ram banks properly
++;
++	moveai		DST_AN, #%hi(__ocm_free_begin)
++	lea.4		TMP_DN, %lo(__ocm_free_begin)(DST_AN)
++	moveai		DST_AN, #%hi(__ocm_free_end)
++	lea.4		TMP2_DN, %lo(__ocm_free_end)(DST_AN)
++	sub.4		#0, TMP2_DN, TMP_DN
++	jmple.f		2f
++	moveai		DST_AN, #%hi(__data_begin)
++	lea.4		TMP_DN, %lo(__data_begin)(DST_AN)
++	moveai		DST_AN, #%hi(OCMSTART)
++	lea.4		TMP2_DN, %lo(OCMSTART)(DST_AN)
++	sub.4		TMP_DN, TMP_DN, TMP2_DN
++	lsr.4		TMP_DN, TMP_DN, #15
++	lsl.4		TMP_DN, #1, TMP_DN
++	moveai		DST_AN, #%hi(OCMC_BASE)
++	add.4		OCMC_BANK_MASK(DST_AN), #-1, TMP_DN
++	pipe_flush	0
++2:
++;
++; Load .ocm_text
++;
++	moveai          DST_AN, #%hi(__ocm_text_run_end)
++	lea.4           TMP_DN, %lo(__ocm_text_run_end)(DST_AN)
++	moveai          DST_AN, #%hi(__ocm_text_run_begin)
++	lea.4           DST_AN, %lo(__ocm_text_run_begin)(DST_AN)
++	moveai          SRC_AN, #%hi(__ocm_text_load_begin)
++	lea.4           SRC_AN, %lo(__ocm_text_load_begin)(SRC_AN)
++	jmpt.t          2f
++
++1:      move.4          (DST_AN)4++, (SRC_AN)4++
++
++2:      sub.4           #0, DST_AN, TMP_DN
++	jmpne.t         1b
++
++;
++; Load .ocm_data
++;
++	moveai          DST_AN, #%hi(__ocm_data_run_end)
++	lea.4           TMP_DN, %lo(__ocm_data_run_end)(DST_AN)
++	moveai          DST_AN, #%hi(__ocm_data_run_begin)
++	lea.4           DST_AN, %lo(__ocm_data_run_begin)(DST_AN)
++	moveai          SRC_AN, #%hi(__ocm_data_load_begin)
++	lea.4           SRC_AN, %lo(__ocm_data_load_begin)(SRC_AN)
++	jmpt.t          2f
++
++1:      move.4          (DST_AN)4++, (SRC_AN)4++
++
++2:      sub.4           #0, DST_AN, TMP_DN
++	jmpne.t         1b
++
++; Clear .bss
++;
++	moveai		SRC_AN, #%hi(_ebss)
++	lea.4		TMP_DN, %lo(_ebss)(SRC_AN)
++	moveai		DST_AN, #%hi(_sbss)
++	lea.4		DST_AN, %lo(_sbss)(DST_AN)
++	jmpt.t		2f
++
++1:	move.4		(DST_AN)4++, #0
++
++2:	sub.4		#0, DST_AN, TMP_DN
++	jmpne.t		1b
++
++; save our parameter to devtree (after clearing .bss)
++	moveai		DST_AN, #%hi(devtree)
++	lea.4		DST_AN, %lo(devtree)(DST_AN)
++	move.4		(DST_AN), PARAM_DN
++
++	moveai		sp, #%hi(init_thread_union)
++	lea.4		sp, %lo(init_thread_union)(sp)
++	movei		TMP_DN, #ASM_THREAD_SIZE
++	add.4		sp, sp, TMP_DN
++	move.4		-4(sp)++, #0 ; nesting level = 0
++	move.4		-4(sp)++, #1 ; KERNEL_THREAD
++
++;; ip3k-elf-gdb backend now sets scratchpad3 to 1 when either continue
++;; or single step commands are issued. scratchpad3 is set to 0 when the
++;; debugger detaches from the board.
++	move.4		TMP_DN, scratchpad3
++	lsl.4		TMP_DN, TMP_DN, #0x0
++	jmpeq.f		_jump_to_start_kernel
++_ok_to_set_break_points_in_linux:
++;; THREAD_STALL
++	move.4		mt_dbg_active_clr,#-1
++;; stalling the threads isn't instantaneous.. need to flush the pipe.
++	pipe_flush	0
++	pipe_flush	0
++
++_jump_to_start_kernel:
++	moveai		SRC_AN, #%hi(start_kernel)
++	lea.4		SRC_AN, %lo(start_kernel)(SRC_AN)
++	ret		SRC_AN
+--- /dev/null
++++ b/arch/ubicom32/kernel/init_task.c
+@@ -0,0 +1,62 @@
++/*
++ * arch/ubicom32/kernel/init_task.c
++ *   Ubicom32 architecture task initialization implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/mm.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/init.h>
++#include <linux/init_task.h>
++#include <linux/fs.h>
++#include <linux/mqueue.h>
++#include <linux/uaccess.h>
++#include <asm/pgtable.h>
++
++static struct fs_struct init_fs = INIT_FS;
++static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
++static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
++struct mm_struct init_mm = INIT_MM(init_mm);
++EXPORT_SYMBOL(init_mm);
++
++/*
++ * Initial task structure.
++ *
++ * All other task structs will be allocated on slabs in fork.c
++ */
++struct task_struct init_task = INIT_TASK(init_task);
++
++EXPORT_SYMBOL(init_task);
++
++/*
++ * Initial thread structure.
++ *
++ * We need to make sure that this is 8192-byte aligned due to the
++ * way process stacks are handled. This is done by having a special
++ * "init_task" linker map entry..
++ */
++union thread_union init_thread_union
++	__attribute__((__section__(".data.init_task"))) =
++		{ INIT_THREAD_INFO(init_task) };
+--- /dev/null
++++ b/arch/ubicom32/kernel/irq.c
+@@ -0,0 +1,596 @@
++/*
++ * arch/ubicom32/kernel/irq.c
++ *   Ubicom32 architecture IRQ support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/irq.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/kernel_stat.h>
++#include <linux/module.h>
++#include <linux/seq_file.h>
++#include <linux/proc_fs.h>
++#include <asm/system.h>
++#include <asm/traps.h>
++#include <asm/ldsr.h>
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++#include <asm/asm-offsets.h>
++#include <asm/thread.h>
++#include <asm/devtree.h>
++
++unsigned int irq_soft_avail;
++static struct irqaction ubicom32_reserve_action[NR_IRQS];
++
++#if !defined(CONFIG_DEBUG_IRQMEASURE)
++#define IRQ_DECLARE_MEASUREMENT
++#define IRQ_MEASUREMENT_START()
++#define IRQ_MEASUREMENT_END(irq)
++#else
++#define IRQ_DECLARE_MEASUREMENT \
++	int __diff;		\
++	unsigned int __tstart;
++
++#define IRQ_MEASUREMENT_START() \
++	__tstart = UBICOM32_IO_TIMER->sysval;
++
++#define IRQ_MEASUREMENT_END(irq) \
++	__diff = (int)UBICOM32_IO_TIMER->sysval - (int)__tstart; \
++	irq_measurement_update((irq), __diff);
++
++/*
++ * We keep track of the time spent in both irq_enter()
++ * and irq_exit().
++ */
++#define IRQ_WEIGHT 32
++
++struct irq_measurement {
++	volatile unsigned int min;
++	volatile unsigned int avg;
++	volatile unsigned int max;
++};
++
++static DEFINE_SPINLOCK(irq_measurement_lock);
++
++/*
++ *  Add 1 in for softirq (irq_exit());
++ */
++static struct irq_measurement irq_measurements[NR_IRQS + 1];
++
++/*
++ * irq_measurement_update()
++ *	Update an entry in the measurement array for this irq.
++ */
++static void irq_measurement_update(int irq, int sample)
++{
++	struct irq_measurement *im = &irq_measurements[irq];
++	spin_lock(&irq_measurement_lock);
++	if ((im->min == 0) || (im->min > sample)) {
++		im->min = sample;
++	}
++	if (im->max < sample) {
++		im->max = sample;
++	}
++	im->avg = ((im->avg * (IRQ_WEIGHT - 1)) + sample) / IRQ_WEIGHT;
++	spin_unlock(&irq_measurement_lock);
++}
++#endif
++
++/*
++ * irq_kernel_stack_check()
++ *	See if the kernel stack is within STACK_WARN of the end.
++ */
++static void irq_kernel_stack_check(int irq, struct pt_regs *regs)
++{
++#ifdef CONFIG_DEBUG_STACKOVERFLOW
++	unsigned long sp;
++
++	/*
++	 * Make sure that we are not close to the top of the stack and thus
++	 * can not really service this interrupt.
++	 */
++	asm volatile (
++		"and.4		%0, SP, %1 \n\t"
++		: "=d" (sp)
++		: "d" (THREAD_SIZE - 1)
++		: "cc"
++	);
++
++	if (sp < (sizeof(struct thread_info) + STACK_WARN)) {
++		printk(KERN_WARNING
++			"cpu[%d]: possible overflow detected sp remain: %p, "
++		       "irq: %d, regs: %p\n",
++			thread_get_self(), (void *)sp, irq, regs);
++		dump_stack();
++	}
++
++	if (sp < (sizeof(struct thread_info) + 16)) {
++		THREAD_STALL;
++	}
++#endif
++}
++
++/*
++ * irq_get_lsb()
++ *	Get the LSB set in value
++ */
++static int irq_get_lsb(unsigned int value)
++{
++	static unsigned char irq_bits[8] = {
++		3, 0, 1, 0, 2, 0, 1, 0
++	};
++	u32_t nextbit = 0;
++
++	value = (value >> nextbit) | (value << ((sizeof(value) * 8) - nextbit));
++
++	/*
++	 * It's unlikely that we find that we execute the body of this while
++	 * loop.  50% of the time we won't take this at all and then of the
++	 * cases where we do about 50% of those we only execute once.
++	 */
++	if (!(value & 0xffff)) {
++		nextbit += 0x10;
++		value >>= 16;
++	}
++
++	if (!(value & 0xff)) {
++		nextbit += 0x08;
++		value >>= 8;
++	}
++
++	if (!(value & 0xf)) {
++		nextbit += 0x04;
++		value >>= 4;
++	}
++
++	nextbit += irq_bits[value & 0x7];
++	if (nextbit > 63) {
++		panic("nextbit out of range: %d\n", nextbit);
++	}
++	return nextbit;
++}
++
++/*
++ * ubicom32_reserve_handler()
++ *	Bogus handler associated with pre-reserved IRQ(s).
++ */
++static irqreturn_t ubicom32_reserve_handler(int irq, void *dev_id)
++{
++	BUG();
++	return IRQ_HANDLED;
++}
++
++/*
++ * __irq_disable_vector()
++ *	Disable the interrupt by clearing the appropriate bit in the
++ *	LDSR Mask Register.
++ */
++static void __irq_disable_vector(unsigned int irq)
++{
++	ldsr_disable_vector(irq);
++}
++
++/*
++ * __irq_ack_vector()
++ *	Acknowledge the specific interrupt by clearing the associate bit in
++ *	hardware
++ */
++static void __irq_ack_vector(unsigned int irq)
++{
++	if (irq < 32) {
++		asm volatile ("move.4 INT_CLR0, %0" : : "d" (1 << irq));
++	} else {
++		asm volatile ("move.4 INT_CLR1, %0" : : "d" (1 << (irq - 32)));
++	}
++}
++
++/*
++ * __irq_enable_vector()
++ *	Clean and then enable the interrupt by setting the appropriate bit in
++ *	the LDSR Mask Register.
++ */
++static void __irq_enable_vector(unsigned int irq)
++{
++	/*
++	 * Acknowledge, really clear the vector.
++	 */
++	__irq_ack_vector(irq);
++	ldsr_enable_vector(irq);
++}
++
++/*
++ * __irq_mask_vector()
++ */
++static void __irq_mask_vector(unsigned int irq)
++{
++	ldsr_mask_vector(irq);
++}
++
++/*
++ * __irq_unmask_vector()
++ */
++static void __irq_unmask_vector(unsigned int irq)
++{
++	ldsr_unmask_vector(irq);
++}
++
++/*
++ * __irq_end_vector()
++ *	Called once an interrupt is completed (reset the LDSR mask).
++ */
++static void __irq_end_vector(unsigned int irq)
++{
++	ldsr_unmask_vector(irq);
++}
++
++#if defined(CONFIG_SMP)
++/*
++ * __irq_set_affinity()
++ *	Set the cpu affinity for this interrupt.
++ */
++static void __irq_set_affinity(unsigned int irq, cpumask_t dest)
++{
++	smp_set_affinity(irq, dest);
++	irq_desc[irq].affinity = dest;
++}
++#endif
++
++/*
++ * On-Chip Generic Interrupt function handling.
++ */
++static struct irq_chip ubicom32_irq_chip = {
++	.name		= "Ubicom32",
++	.startup	= NULL,
++	.shutdown	= NULL,
++	.enable		= __irq_enable_vector,
++	.disable	= __irq_disable_vector,
++	.ack		= __irq_ack_vector,
++	.mask		= __irq_mask_vector,
++	.unmask		= __irq_unmask_vector,
++	.end		= __irq_end_vector,
++#if defined(CONFIG_SMP)
++	.set_affinity	= __irq_set_affinity,
++#endif
++};
++
++/*
++ * do_IRQ()
++ *	Primary interface for handling IRQ() requests.
++ */
++asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
++{
++	struct pt_regs *oldregs;
++	struct thread_info *ti;
++	unsigned long sp;
++
++	IRQ_DECLARE_MEASUREMENT;
++
++	oldregs = set_irq_regs(regs);
++
++	/*
++	 * Before we call the handler and potentially enable
++	 * interrupts, track the nesting level.
++	 */
++	asm volatile (
++		"and.4		%0, SP, %1 \n\t"
++		: "=d" (sp)
++		: "d" (~(THREAD_SIZE - 1))
++		: "cc"
++	);
++	ti = (struct thread_info *)sp;
++	ti->interrupt_nesting++;
++
++	/*
++	 * Check for possible stack overflow on the kernel stack.
++	 */
++	irq_kernel_stack_check(irq, regs);
++
++	/*
++	 * Execute the IRQ handler and any pending SoftIRQ requests.
++	 */
++	BUG_ON(!irqs_disabled());
++	irq_enter();
++
++	BUG_ON(!irqs_disabled());
++	IRQ_MEASUREMENT_START();
++	__do_IRQ(irq);
++	IRQ_MEASUREMENT_END(irq);
++	BUG_ON(!irqs_disabled());
++
++	IRQ_MEASUREMENT_START();
++	irq_exit();
++	IRQ_MEASUREMENT_END(NR_IRQS);
++	BUG_ON(!irqs_disabled());
++
++	set_irq_regs(oldregs);
++	ti->interrupt_nesting--;
++}
++
++/*
++ * irq_soft_alloc()
++ *	Allocate a soft IRQ.
++ */
++int irq_soft_alloc(unsigned int *soft)
++{
++	if (irq_soft_avail == 0) {
++		printk(KERN_NOTICE "no soft irqs to allocate\n");
++		return -EFAULT;
++	}
++
++	*soft = irq_get_lsb(irq_soft_avail);
++	irq_soft_avail &= ~(1 << *soft);
++	return 0;
++}
++
++/*
++ * ack_bad_irq()
++ *	Called to handle an bad irq request.
++ */
++void ack_bad_irq(unsigned int irq)
++{
++	printk(KERN_ERR "IRQ: unexpected irq=%d\n", irq);
++	__irq_end_vector(irq);
++}
++
++/*
++ * show_interrupts()
++ *	Return a string that displays the state of each of the interrupts.
++ */
++int show_interrupts(struct seq_file *p, void *v)
++{
++	struct irqaction *ap;
++	int irq = *((loff_t *) v);
++	int j;
++
++	if (irq >= NR_IRQS) {
++		return 0;
++	}
++
++	if (irq == 0) {
++		seq_puts(p, "           ");
++		for_each_online_cpu(j) {
++			seq_printf(p, "CPU%d       ", j);
++		}
++		seq_putc(p, '\n');
++	}
++
++	ap = irq_desc[irq].action;
++	if (ap) {
++		seq_printf(p, "%3d: ", irq);
++		for_each_online_cpu(j) {
++			seq_printf(p, "%10u ", kstat_irqs_cpu(irq, j));
++		}
++		seq_printf(p, "%14s  ", irq_desc[irq].chip->name);
++		seq_printf(p, "%s", ap->name);
++		for (ap = ap->next; ap; ap = ap->next) {
++			seq_printf(p, ", %s", ap->name);
++		}
++		seq_putc(p, '\n');
++	}
++	return 0;
++}
++
++#if defined(CONFIG_DEBUG_IRQMEASURE)
++static unsigned int irq_cycles_to_micro(unsigned int cycles, unsigned int frequency)
++{
++	unsigned int micro = (cycles / (frequency / 1000000));
++	return micro;
++}
++
++/*
++ * irq_measurement_show()
++ *	Print out the min, avg, max values for each IRQ
++ *
++ * By request, the max value is reset after each dump.
++ */
++static int irq_measurement_show(struct seq_file *p, void *v)
++{
++	struct irqaction *ap;
++	unsigned int freq = processor_frequency();
++	int irq = *((loff_t *) v);
++
++
++	if (irq == 0) {
++		seq_puts(p, "\tmin\tavg\tmax\t(micro-seconds)\n");
++	}
++
++	if (irq > NR_IRQS) {
++		return 0;
++	}
++
++	if (irq == NR_IRQS) {
++		unsigned int min, avg, max;
++		spin_lock(&irq_measurement_lock);
++		min = irq_cycles_to_micro(irq_measurements[irq].min, freq);
++		avg = irq_cycles_to_micro(irq_measurements[irq].avg, freq);
++		max = irq_cycles_to_micro(irq_measurements[irq].max, freq);
++		irq_measurements[irq].max = 0;
++		spin_unlock(&irq_measurement_lock);
++		seq_printf(p, "   \t%u\t%u\t%u\tsoftirq\n", min, avg, max);
++		return 0;
++	}
++
++	ap = irq_desc[irq].action;
++	if (ap) {
++		unsigned int min, avg, max;
++		spin_lock(&irq_measurement_lock);
++		min = irq_cycles_to_micro(irq_measurements[irq].min, freq);
++		avg = irq_cycles_to_micro(irq_measurements[irq].avg, freq);
++		max = irq_cycles_to_micro(irq_measurements[irq].max, freq);
++		irq_measurements[irq].max = 0;
++		spin_unlock(&irq_measurement_lock);
++		seq_printf(p, "%2u:\t%u\t%u\t%u\t%s\n", irq, min, avg, max, ap->name);
++	}
++	return 0;
++}
++
++static void *irq_measurement_start(struct seq_file *f, loff_t *pos)
++{
++	return (*pos <= NR_IRQS) ? pos : NULL;
++}
++
++static void *irq_measurement_next(struct seq_file *f, void *v, loff_t *pos)
++{
++	(*pos)++;
++	if (*pos > NR_IRQS)
++		return NULL;
++	return pos;
++}
++
++static void irq_measurement_stop(struct seq_file *f, void *v)
++{
++	/* Nothing to do */
++}
++
++static const struct seq_operations irq_measurement_seq_ops = {
++	.start = irq_measurement_start,
++	.next  = irq_measurement_next,
++	.stop  = irq_measurement_stop,
++	.show  = irq_measurement_show,
++};
++
++static int irq_measurement_open(struct inode *inode, struct file *filp)
++{
++	return seq_open(filp, &irq_measurement_seq_ops);
++}
++
++static const struct file_operations irq_measurement_fops = {
++	.open		= irq_measurement_open,
++	.read		= seq_read,
++	.llseek		= seq_lseek,
++	.release	= seq_release,
++};
++
++static int __init irq_measurement_init(void)
++{
++	proc_create("irq_measurements", 0, NULL, &irq_measurement_fops);
++	return 0;
++}
++module_init(irq_measurement_init);
++#endif
++
++/*
++ * init_IRQ(void)
++ *	Initialize the on-chip IRQ subsystem.
++ */
++void __init init_IRQ(void)
++{
++	int irq;
++	struct devtree_node *p = NULL;
++	struct devtree_node *iter = NULL;
++	unsigned int mask = 0;
++	unsigned int reserved = 0;
++
++	/*
++	 * Pull out the list of software interrupts that are avialable to
++	 * Linux and provide an allocation function for them.  The first
++	 * 24 interrupts of INT0 are software interrupts.
++	 */
++	irq_soft_avail = 0;
++	if (processor_interrupts(&irq_soft_avail, NULL) < 0) {
++		printk(KERN_WARNING "No Soft IRQ(s) available\n");
++	}
++	irq_soft_avail &= ((1 << 24) - 1);
++
++	/*
++	 * Initialize all of the on-chip interrupt handling
++	 * to use a common set of interrupt functions.
++	 */
++	for (irq = 0; irq < NR_IRQS; irq++) {
++		irq_desc[irq].status = IRQ_DISABLED;
++		irq_desc[irq].action = NULL;
++		irq_desc[irq].depth = 1;
++		set_irq_chip(irq, &ubicom32_irq_chip);
++	}
++
++	/*
++	 * The sendirq of a devnode is not registered within Linux but instead
++	 * is used by the software I/O thread.  These interrupts are reserved.
++	 * The recvirq is used by Linux and registered by a device driver, these
++	 * are not reserved.
++	 *
++	 * recvirq(s) that are in the software interrupt range are not supposed
++	 * to be marked as reserved.  We track this while we scan the device
++	 * nodes.
++	 */
++	p = devtree_find_next(&iter);
++	while (p) {
++		unsigned char sendirq, recvirq;
++		devtree_irq(p, &sendirq, &recvirq);
++
++		/*
++		 * If the sendirq is valid, mark that irq as taken by the
++		 * devtree node.
++		 */
++		if (sendirq < NR_IRQS) {
++			ubicom32_reserve_action[sendirq].handler =
++				ubicom32_reserve_handler;
++			ubicom32_reserve_action[sendirq].name = p->name;
++			irq_desc[sendirq].action =
++				&ubicom32_reserve_action[sendirq];
++			mask |= (1 << sendirq);
++		}
++
++		/*
++		 * Track the relevant recieve IRQ(s)
++		 */
++		if (recvirq < 24) {
++			mask |= (1 << recvirq);
++		}
++
++		/*
++		 * Move to the next node.
++		 */
++		p = devtree_find_next(&iter);
++	}
++
++	/*
++	 * Remove these bits from the irq_soft_avail list and then use the
++	 * result as the list of pre-reserved IRQ(s).
++	 */
++	reserved = ~irq_soft_avail & ~mask;
++	for (irq = 0; irq < 24; irq++) {
++		if ((reserved & (1 << irq))) {
++			ubicom32_reserve_action[irq].handler =
++				ubicom32_reserve_handler;
++			ubicom32_reserve_action[irq].name = "reserved";
++			irq_desc[irq].action = &ubicom32_reserve_action[irq];
++		}
++	}
++
++	/*
++	 * Initialize the LDSR which is the Ubicom32 programmable
++	 * interrupt controller.
++	 */
++	ldsr_init();
++
++	/*
++	 * The Ubicom trap code needs a 2nd init after IRQ(s) are setup.
++	 */
++	trap_init_interrupt();
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/ldsr.c
+@@ -0,0 +1,1176 @@
++/*
++ * arch/ubicom32/kernel/ldsr.c
++ *   Ubicom32 architecture Linux Device Services Driver Interface
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *
++ * NOTES:
++ *
++ * The LDSR is a programmable interrupt controller that is written in software.
++ * It emulates the behavior of an pic by fielding the interrupts, choosing a
++ * victim thread to take the interrupt and forcing that thread to take a context
++ * switch to the appropriate interrupt handler.
++ *
++ * Because traps are treated as just a special class of interrupts, the LDSR
++ * also handles the processing of traps.
++ *
++ * Because we compile Linux both UP and SMP, we need the LDSR to use
++ * architectural locking that is not "compiled out" when compiling UP.  For now,
++ * we use the single atomic bit lock.
++ */
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/sched.h>
++#include <linux/interrupt.h>
++#include <linux/irq.h>
++#include <linux/profile.h>
++#include <linux/clocksource.h>
++#include <linux/types.h>
++#include <linux/module.h>
++#include <linux/cpumask.h>
++#include <linux/bug.h>
++#include <linux/delay.h>
++#include <asm/ip5000.h>
++#include <asm/atomic.h>
++#include <asm/machdep.h>
++#include <asm/asm-offsets.h>
++#include <asm/traps.h>
++#include <asm/thread.h>
++#include <asm/range-protect.h>
++
++/*
++ * One can not print from the LDSR so the best we can do is
++ * check a condition and stall all of the threads.
++ */
++
++// #define DEBUG_LDSR 1
++#if defined(DEBUG_LDSR)
++#define DEBUG_ASSERT(cond) \
++	if (!(cond)) { \
++		THREAD_STALL; \
++	}
++#else
++#define DEBUG_ASSERT(cond)
++#endif
++
++/*
++ * Make global so that we can use it in the RFI code in assembly.
++ */
++unsigned int ldsr_soft_irq_mask;
++EXPORT_SYMBOL(ldsr_soft_irq_mask);
++
++static unsigned int ldsr_suspend_mask;
++static unsigned int ldsr_soft_irq;
++static unsigned int ldsr_stack_space[1024];
++
++static struct ldsr_register_bank {
++	volatile unsigned int enabled0;
++	volatile unsigned int enabled1;
++	volatile unsigned int mask0;
++	volatile unsigned int mask1;
++	unsigned int total;
++	unsigned int retry;
++	unsigned int backout;
++} ldsr_interrupt;
++
++/*
++ * Which thread/cpu are we?
++ */
++static int ldsr_tid = -1;
++
++#if defined(CONFIG_IRQSTACKS)
++/*
++ * per-CPU IRQ stacks (thread information and stack)
++ *
++ * NOTE: Do not use DEFINE_PER_CPU() as it makes it harder
++ * to find the location of ctx from assembly language.
++ */
++union irq_ctx {
++	struct thread_info      tinfo;
++	u32                     stack[THREAD_SIZE/sizeof(u32)];
++};
++static union irq_ctx *percpu_irq_ctxs[NR_CPUS];
++
++/*
++ *  Storage for the interrupt stack.
++ */
++#if !defined(CONFIG_IRQSTACKS_USEOCM)
++static char percpu_irq_stacks[(NR_CPUS * THREAD_SIZE) + (THREAD_SIZE - 1)];
++#else
++/*
++ *  For OCM, the linker will ensure that space is allocated for the stack
++ *  see (vmlinux.lds.S)
++ */
++static char percpu_irq_stacks[];
++#endif
++
++#endif
++
++/*
++ * Save trap IRQ because we need to un-suspend if it gets set.
++ */
++static unsigned int ldsr_trap_irq_mask;
++static unsigned int ldsr_trap_irq;
++
++/*
++ * ret_from_interrupt_to_kernel
++ *	Just restore the context and do nothing else.
++ */
++asmlinkage void ret_from_interrupt_to_kernel(void)__attribute__((naked));
++
++/*
++ * ret_from_interrupt_to_user
++ *	Call scheduler if needed. Just restore the context.
++ */
++asmlinkage void ret_from_interrupt_to_user(void)__attribute__((naked));
++
++#ifdef DEBUG_LDSR
++u32_t old_sp, old_pc, old_a0, old_a5, old_a3;
++struct pt_regs copy_regs, *copy_save_area;
++#endif
++
++int __user_mode(unsigned long sp)
++{
++
++	u32_t saved_stack_base = sp & ~(ASM_THREAD_SIZE - 1);
++#if defined(CONFIG_IRQSTACKS_USEOCM)
++	if ((union irq_ctx *)saved_stack_base == percpu_irq_ctxs[smp_processor_id()]) {
++		/*
++		 *  On the interrupt stack.
++		 */
++		return 0;
++	}
++#endif
++
++	if (!(u32_t)current) {
++		return 0;
++	}
++	return saved_stack_base != ((u32_t)current->stack);
++}
++
++/*
++ * ldsr_lock_release()
++ *	Release the LDSR lock.
++ */
++static void ldsr_lock_release(void)
++{
++	UBICOM32_UNLOCK(LDSR_LOCK_BIT);
++}
++
++/*
++ * ldsr_lock_acquire()
++ *	Acquire the LDSR lock, spin if not available.
++ */
++static void ldsr_lock_acquire(void)
++{
++	UBICOM32_LOCK(LDSR_LOCK_BIT);
++}
++
++/*
++ * ldsr_thread_irq_disable()
++ *	Disable interrupts for the specified thread.
++ */
++static void ldsr_thread_irq_disable(unsigned int tid)
++{
++	unsigned int mask = (1 << tid);
++
++	asm volatile (
++	"	or.4	scratchpad1, scratchpad1, %0	\n\t"
++		:
++		: "d"(mask)
++		: "cc"
++	);
++}
++
++/*
++ * ldsr_thread_get_interrupts()
++ *	Get the interrupt state for all threads.
++ */
++static unsigned long ldsr_thread_get_interrupts(void)
++{
++	unsigned long ret = 0;
++	asm volatile (
++	"	move.4	%0, scratchpad1	\n\t"
++		: "=r" (ret)
++		:
++	);
++	return ret;
++}
++
++/*
++ * ldsr_emulate_and_run()
++ *	Emulate the instruction and then set the thread to run.
++ */
++static void ldsr_emulate_and_run(unsigned int tid)
++{
++	unsigned int thread_mask = (1 << tid);
++	u32_t write_csr = (tid << 15) | (1 << 14);
++
++	/*
++	 * Emulate the unaligned access.
++	 */
++	unaligned_emulate(tid);
++
++	/*
++	 * Get the thread back in a running state.
++	 */
++	asm volatile (
++	"	setcsr	%0			\n\t"
++	"	setcsr_flush 0			\n\t"
++	"	move.4	trap_cause, #0		\n\t" /* Clear the trap cause
++						       * register */
++	"	setcsr	#0			\n\t"
++	"	setcsr_flush 0			\n\t"
++	"	move.4	mt_dbg_active_set, %1	\n\t" /* Activate thread even if
++						       * in dbg/fault state */
++	"	move.4	mt_active_set, %1	\n\t" /* Restart target
++						       * thread. */
++		:
++		: "r" (write_csr), "d" (thread_mask)
++		: "cc"
++	);
++	thread_enable_mask(thread_mask);
++}
++
++/*
++ * ldsr_preemptive_context_save()
++ *	save thread context from another hardware thread.  The other thread must
++ *	be stalled.
++ */
++static inline void ldsr_preemptive_context_save(u32_t thread,
++						struct pt_regs *regs)
++{
++	/*
++	 * Save the current state of the specified thread
++	 */
++	asm volatile (
++	"       move.4  a3, %0					\n\t"
++
++		/* set src1 from the target thread */
++	"       move.4  csr, %1					\n\t"
++	"	setcsr_flush 0					\n\t"
++	"	setcsr_flush 0					\n\t"
++
++		/* copy state from the other thread */
++	"       move.4  "D(PT_D0)"(a3), d0			\n\t"
++	"       move.4  "D(PT_D1)"(a3), d1			\n\t"
++	"       move.4  "D(PT_D2)"(a3), d2			\n\t"
++	"       move.4  "D(PT_D3)"(a3), d3			\n\t"
++	"       move.4  "D(PT_D4)"(a3), d4			\n\t"
++	"       move.4  "D(PT_D5)"(a3), d5			\n\t"
++	"       move.4  "D(PT_D6)"(a3), d6			\n\t"
++	"       move.4  "D(PT_D7)"(a3), d7			\n\t"
++	"       move.4  "D(PT_D8)"(a3), d8			\n\t"
++	"       move.4  "D(PT_D9)"(a3), d9			\n\t"
++	"       move.4  "D(PT_D10)"(a3), d10			\n\t"
++	"       move.4  "D(PT_D11)"(a3), d11			\n\t"
++	"       move.4  "D(PT_D12)"(a3), d12			\n\t"
++	"       move.4  "D(PT_D13)"(a3), d13			\n\t"
++	"       move.4  "D(PT_D14)"(a3), d14			\n\t"
++	"       move.4  "D(PT_D15)"(a3), d15			\n\t"
++	"       move.4  "D(PT_A0)"(a3), a0			\n\t"
++	"       move.4  "D(PT_A1)"(a3), a1			\n\t"
++	"       move.4  "D(PT_A2)"(a3), a2			\n\t"
++	"       move.4  "D(PT_A3)"(a3), a3			\n\t"
++	"       move.4  "D(PT_A4)"(a3), a4			\n\t"
++	"       move.4  "D(PT_A5)"(a3), a5			\n\t"
++	"       move.4  "D(PT_A6)"(a3), a6			\n\t"
++	"       move.4  "D(PT_SP)"(a3), a7			\n\t"
++	"       move.4  "D(PT_ACC0HI)"(a3), acc0_hi		\n\t"
++	"       move.4  "D(PT_ACC0LO)"(a3), acc0_lo		\n\t"
++	"       move.4  "D(PT_MAC_RC16)"(a3), mac_rc16		\n\t"
++	"       move.4  "D(PT_ACC1HI)"(a3), acc1_hi		\n\t"
++	"       move.4  "D(PT_ACC1LO)"(a3), acc1_lo		\n\t"
++	"       move.4  "D(PT_SOURCE3)"(a3), source3		\n\t"
++	"       move.4  "D(PT_INST_CNT)"(a3), inst_cnt		\n\t"
++	"       move.4  "D(PT_CSR)"(a3), csr			\n\t"
++	"       move.4  "D(PT_DUMMY_UNUSED)"(a3), #0		\n\t"
++	"       move.4  "D(PT_INT_MASK0)"(a3), int_mask0	\n\t"
++	"       move.4  "D(PT_INT_MASK1)"(a3), int_mask1	\n\t"
++	"       move.4  "D(PT_TRAP_CAUSE)"(a3), trap_cause	\n\t"
++	"       move.4  "D(PT_PC)"(a3), pc			\n\t"
++	"	move.4	"D(PT_PREVIOUS_PC)"(a3), previous_pc	\n\t"
++		/* disable csr thread select */
++	"       movei   csr, #0					\n\t"
++	"       setcsr_flush 0					\n\t"
++	:
++	: "r" (regs->dn), "d" ((thread << 9) | (1 << 8))
++	: "a3"
++	);
++}
++
++/*
++ * ldsr_rotate_threads()
++ *	Simple round robin algorithm for choosing the next cpu
++ */
++static int ldsr_rotate_threads(unsigned long cpus)
++{
++	static unsigned char ldsr_bits[8] = {
++		3, 0, 1, 0, 2, 0, 1, 0
++	};
++
++	static int nextbit;
++	int thisbit;
++
++	/*
++	 * Move the interrupts down so that we consider interrupts from where
++	 * we left off, then take the interrupts we would lose and move them
++	 * to the top half of the interrupts value.
++	 */
++	cpus = (cpus >> nextbit) | (cpus << ((sizeof(cpus) * 8) - nextbit));
++
++	/*
++	 * 50% of the time we won't take this at all and then of the cases where
++	 * we do about 50% of those we only execute once.
++	 */
++	if (!(cpus & 0xffff)) {
++		nextbit += 16;
++		cpus >>= 16;
++	}
++
++	if (!(cpus & 0xff)) {
++		nextbit += 8;
++		cpus >>= 8;
++	}
++
++	if (!(cpus & 0xf)) {
++		nextbit += 4;
++		cpus >>= 4;
++	}
++
++	nextbit += ldsr_bits[cpus & 0x7];
++	thisbit = (nextbit & ((sizeof(cpus) * 8) - 1));
++	nextbit = (thisbit + 1) & ((sizeof(cpus) * 8) - 1);
++	DEBUG_ASSERT(thisbit < THREAD_ARCHITECTURAL_MAX);
++	return thisbit;
++}
++
++/*
++ * ldsr_rotate_interrupts()
++ *	Get rotating next set bit value.
++ */
++static int ldsr_rotate_interrupts(unsigned long long interrupts)
++{
++	static unsigned char ldsr_bits[8] = {
++		3, 0, 1, 0, 2, 0, 1, 0
++	};
++
++	static int nextbit;
++	int thisbit;
++
++	/*
++	 * Move the interrupts down so that we consider interrupts from where
++	 * we left off, then take the interrupts we would lose and move them
++	 * to the top half of the interrupts value.
++	 */
++	interrupts = (interrupts >> nextbit) |
++		(interrupts << ((sizeof(interrupts) * 8) - nextbit));
++
++	/*
++	 * 50% of the time we won't take this at all and then of the cases where
++	 * we do about 50% of those we only execute once.
++	 */
++	if (!(interrupts & 0xffffffff)) {
++		nextbit += 32;
++		interrupts >>= 32;
++	}
++
++	if (!(interrupts & 0xffff)) {
++		nextbit += 16;
++		interrupts >>= 16;
++	}
++
++	if (!(interrupts & 0xff)) {
++		nextbit += 8;
++		interrupts >>= 8;
++	}
++
++	if (!(interrupts & 0xf)) {
++		nextbit += 4;
++		interrupts >>= 4;
++	}
++
++	nextbit += ldsr_bits[interrupts & 0x7];
++	thisbit = (nextbit & ((sizeof(interrupts) * 8) - 1));
++	nextbit = (thisbit + 1) & ((sizeof(interrupts) * 8) - 1);
++
++	DEBUG_ASSERT(thisbit < (sizeof(interrupts) * 8));
++	return thisbit;
++}
++
++/*
++ * ldsr_backout_or_irq()
++ *
++ * One way or the other this interrupt is not being
++ * processed, make sure that it is reset.  We are
++ * not going to call irq_end_vector() so unmask the
++ * interrupt.
++ */
++static void ldsr_backout_of_irq(int vector, unsigned long tid_mask)
++{
++#if defined(CONFIG_SMP)
++	if (unlikely(vector == smp_ipi_irq)) {
++		smp_reset_ipi(tid_mask);
++	}
++#endif
++	ldsr_unmask_vector(vector);
++	ldsr_interrupt.backout++;
++}
++
++#if defined(CONFIG_IRQSTACKS)
++/*
++ * ldsr_choose_savearea_and_returnvec()
++ *	Test our current state (user, kernel, interrupt) and set things up.
++ *
++ * This version of the function uses 3 stacks and nests interrupts
++ * on the interrupt stack.
++ */
++static struct pt_regs *ldsr_choose_savearea_and_returnvec(thread_t tid, u32_t linux_sp, u32_t *pvec)
++{
++	struct pt_regs *save_area;
++	u32_t masked_linux_sp = linux_sp & ~(THREAD_SIZE - 1);
++	struct thread_info * ti= (struct thread_info *)sw_ksp[tid];
++
++#if defined(CONFIG_SMP)
++	union irq_ctx *icp = percpu_irq_ctxs[tid];
++#else
++	union irq_ctx *icp = percpu_irq_ctxs[0];
++#endif
++
++	if (masked_linux_sp == (u32_t)icp) {
++		/*
++		 * Fault/Interrupt occurred while on the interrupt stack.
++		 */
++		save_area = (struct pt_regs *)((char *)linux_sp - sizeof(struct pt_regs) - 8);
++		*pvec = (u32_t)(&ret_from_interrupt_to_kernel);
++	} else {
++		/*
++		 *  Fault/Interrupt occurred while on user/kernel stack.  This is a new
++		 *  first use of the interrupt stack.
++		 */
++		save_area = (struct pt_regs *) ((char *)icp + sizeof(icp->stack) - sizeof(struct pt_regs) - 8);
++		if (masked_linux_sp == (u32_t)ti) {
++			*pvec  = (u32_t)(&ret_from_interrupt_to_kernel);
++		} else {
++			*pvec  = (u32_t)(&ret_from_interrupt_to_user);
++		}
++
++		/*
++		 * Because the softirq code will execute on the "interrupt" stack, we
++		 * need to maintain the knowledge of what "task" was executing on the
++		 * cpu.  This is done by copying the thread_info->task from the cpu
++		 * we are about to context switch into the interrupt contexts thread_info
++		 * structure.
++		 */
++		icp->tinfo.task = ti->task;
++		icp->tinfo.preempt_count =
++				(icp->tinfo.preempt_count & ~SOFTIRQ_MASK) |
++				(ti->preempt_count & SOFTIRQ_MASK);
++		icp->tinfo.interrupt_nesting = 0;
++	}
++	save_area->nesting_level = icp->tinfo.interrupt_nesting;
++	return save_area;
++}
++
++#else
++/*
++ * ldsr_choose_savearea_and_returnvec()
++ *	Test our current state (user, kernel, interrupt) and set things up.
++ *
++ * The version of the function uses just the user & kernel stack and
++ * nests interrupts on the existing kernel stack.
++ */
++static struct pt_regs *ldsr_choose_savearea_and_returnvec(thread_t tid, u32_t linux_sp, u32_t *pvec)
++{
++	struct pt_regs *save_area;
++	u32_t masked_linux_sp = linux_sp & ~(THREAD_SIZE - 1);
++	struct thread_info *ti = (struct thread_info *)sw_ksp[tid];
++
++	if (masked_linux_sp == (u32_t)ti) {
++		/*
++		 * Fault/Interrupt occurred while on the kernel stack.
++		 */
++		save_area = (struct pt_regs *)((char *)linux_sp - sizeof(struct pt_regs) - 8);
++		*pvec = (u32_t) (&ret_from_interrupt_to_kernel);
++	} else {
++		/*
++		 *  Fault/Interrupt occurred while on user stack.
++		 */
++		ti->interrupt_nesting = 0;
++		save_area = (struct pt_regs *)((u32_t)ti + THREAD_SIZE - sizeof(struct pt_regs) - 8);
++		*pvec  = (u32_t) (&ret_from_interrupt_to_user);
++	}
++	save_area->nesting_level = ti->interrupt_nesting;
++	return save_area;
++}
++#endif
++
++/*
++ * ldsr_ctxsw_thread()
++ *	Context switch a mainline thread to execute do_IRQ() for the specified
++ *	vector.
++ */
++static void ldsr_ctxsw_thread(int vector, thread_t tid)
++{
++	u32_t linux_sp;
++	u32_t return_vector;
++	struct pt_regs *save_area, *regs;
++	u32_t thread_mask = (1 << tid);
++	u32_t read_csr = ((tid << 9) | (1 << 8));
++	u32_t write_csr = (tid << 15) | (1 << 14);
++	u32_t interrupt_vector = (u32_t)(&do_IRQ);
++
++	unsigned int frame_type = UBICOM32_FRAME_TYPE_INTERRUPT;
++
++
++	DEBUG_ASSERT(!thread_is_enabled(tid));
++
++	/*
++	 * Acquire the necessary global and per thread locks for tid.
++	 * As a side effect, we ensure that the thread has not trapped
++	 * and return true if it has.
++	 */
++	if (unlikely(thread_is_trapped(tid))) {
++		/*
++		 * Read the trap cause, the sp and clear the MT_TRAP bits.
++		 */
++		unsigned int cause;
++		asm volatile (
++		"	setcsr	%3		\n\t"
++		"	setcsr_flush 0		\n\t"
++		"	setcsr_flush 0		\n\t"
++		"	move.4	%0, TRAP_CAUSE	\n\t"
++		"	move.4	%1, SP		\n\t"
++		"	setcsr	#0		\n\t"
++		"	setcsr_flush 0		\n\t"
++		"	move.4	MT_BREAK_CLR, %2\n\t"
++		"	move.4	MT_TRAP_CLR, %2	\n\t"
++			: "=&r" (cause), "=&r" (linux_sp)
++			: "r" (thread_mask), "m" (read_csr)
++		);
++
++		ldsr_backout_of_irq(vector, (1 << tid));
++
++#if !defined(CONFIG_UNALIGNED_ACCESS_DISABLED)
++		/*
++		 * See if the unaligned trap handler can deal with this.
++		 * If so, emulate the instruction and then just restart
++		 * the thread.
++		 */
++		if (unaligned_only(cause)) {
++#if defined(CONFIG_UNALIGNED_ACCESS_USERSPACE_ONLY)
++			/*
++			 * Check if this is a kernel stack if so we will not
++			 * handle the trap
++			 */
++			u32_t masked_linux_sp = linux_sp & ~(THREAD_SIZE - 1);
++			if ((masked_linux_sp != (u32_t)sw_ksp[tid]) &&
++			    unaligned_only(cause)) {
++				ldsr_emulate_and_run(tid);
++				return;
++			}
++#else
++			ldsr_emulate_and_run(tid);
++			return;
++#endif
++
++		}
++#endif
++
++		interrupt_vector = (u32_t)(&trap_handler);
++		frame_type = UBICOM32_FRAME_TYPE_TRAP;
++	} else {
++		/*
++		 * Read the target thread's SP
++		 */
++		asm volatile (
++		"	setcsr	%1		\n\t"
++		"	setcsr_flush 0		\n\t"
++		"	setcsr_flush 0		\n\t"
++		"	move.4	%0, SP		\n\t"
++		"	setcsr	#0		\n\t"
++		"	setcsr_flush 0		\n\t"
++			: "=m" (linux_sp)
++			: "m" (read_csr)
++		);
++	}
++
++	/*
++	 * We are delivering an interrupt, count it.
++	 */
++	ldsr_interrupt.total++;
++
++	/*
++	 * At this point, we will definitely force this thread to
++	 * a new context, show its interrupts as disabled.
++	 */
++	ldsr_thread_irq_disable(tid);
++
++	/*
++	 * Test our current state (user, kernel, interrupt).  Save the
++	 * appropriate data and setup for the return.
++	 */
++	save_area = ldsr_choose_savearea_and_returnvec(tid, linux_sp, &return_vector);
++
++	/*
++	 *  The pt_regs (save_area) contains the type of thread that we are dealing
++	 *  with (KERNEL/NORMAL) and is copied into each pt_regs area.  We get this
++	 *  from the current tasks kernel pt_regs area that always exists at the
++	 *  top of the kernel stack.
++	 */
++	regs = (struct pt_regs *)((u32_t)sw_ksp[tid] + THREAD_SIZE - sizeof(struct pt_regs) - 8);
++	save_area->thread_type = regs->thread_type;
++
++	/*
++	 * Preserve the context of the Linux thread.
++	 */
++	ldsr_preemptive_context_save(tid, save_area);
++
++	/*
++	 * Load the fram_type into the save_area.
++	 */
++	save_area->frame_type = frame_type;
++
++#ifdef CONFIG_STOP_ON_TRAP
++	/*
++	 * Before we get backtrace and showing stacks working well, it sometimes
++	 * helps to enter the debugger when a trap occurs before we change the
++	 * thread to handle the fault.  This optional code causes all threads to
++	 * stop on every trap frame.  One assumes that GDB connected via the
++	 * mailbox interface will be used to recover from this state.
++	 */
++	if (frame_type == UBICOM32_FRAME_TYPE_TRAP) {
++		THREAD_STALL;
++	}
++#endif
++
++#ifdef DEBUG_LDSR
++	copy_regs = *save_area;
++	copy_save_area = save_area;
++
++	old_a0 = save_area->an[0];
++	old_a3 = save_area->an[3];
++	old_sp = save_area->an[7];
++	old_a5 = save_area->an[5];
++	old_pc = save_area->pc;
++#endif
++
++	/*
++	 * Now we have to switch the kernel thread to run do_IRQ function.
++	 *	Set pc to do_IRQ
++	 *	Set d0 to vector
++	 *	Set d1 to save_area.
++	 *	Set a5 to the proper return vector.
++	 */
++	asm volatile (
++	"	setcsr	%0			\n\t"
++	"	setcsr_flush 0			\n\t"
++	"	move.4	d0, %5			\n\t" /* d0 = 0 vector # */
++	"	move.4	d1, %1			\n\t" /* d1 = save_area */
++	"	move.4	sp, %1			\n\t" /* sp = save_area */
++	"	move.4	a5, %2			\n\t" /* a5 = return_vector */
++	"	move.4	pc, %3			\n\t" /* pc = do_IRQ routine. */
++	"	move.4	trap_cause, #0		\n\t" /* Clear the trap cause
++						       * register */
++	"	setcsr	#0			\n\t"
++	"	setcsr_flush 0			\n\t"
++	"	enable_kernel_ranges %4		\n\t"
++	"	move.4	mt_dbg_active_set, %4	\n\t" /* Activate thread even if
++						       * in dbg/fault state */
++	"	move.4	mt_active_set, %4	\n\t" /* Restart target
++						       * thread. */
++		:
++		: "r" (write_csr), "r" (save_area),
++		  "r" (return_vector), "r" (interrupt_vector),
++		  "d" (thread_mask), "r" (vector)
++		: "cc"
++	);
++	thread_enable_mask(thread_mask);
++}
++
++/*
++ * ldsr_deliver_interrupt()
++ *	Deliver the interrupt to one of the threads or all of the threads.
++ */
++static void ldsr_deliver_interrupt(int vector,
++				   unsigned long deliver_to,
++				   int all)
++{
++	unsigned long disabled_threads;
++	unsigned long possible_threads;
++	unsigned long trapped_threads;
++	unsigned long global_locks;
++
++	/*
++	 * Disable all of the threads that we might want to send
++	 * this interrupt to.
++	 */
++retry:
++	DEBUG_ASSERT(deliver_to);
++	thread_disable_mask(deliver_to);
++
++	/*
++	 * If any threads are in the trap state, we have to service the
++	 * trap for those threads first.
++	 */
++	asm volatile (
++		"move.4	%0, MT_TRAP		\n\t"
++		: "=r" (trapped_threads)
++		:
++	);
++
++	trapped_threads &= deliver_to;
++	if (unlikely(trapped_threads)) {
++		/*
++		 * all traps will be handled, so clear the trap bit before restarting any threads
++		 */
++	        ubicom32_clear_interrupt(ldsr_trap_irq);
++
++		/*
++		 * Let the remaining untrapped threads, continue.
++		 */
++		deliver_to &= ~trapped_threads;
++		if (deliver_to) {
++			thread_enable_mask(deliver_to);
++		}
++
++		/*
++		 * For the trapped threads force them to handle
++		 * a trap.
++		 */
++		while (trapped_threads) {
++			unsigned long which = ffz(~trapped_threads);
++			trapped_threads &= ~(1 << which);
++			ldsr_ctxsw_thread(vector, which);
++		}
++		return;
++	}
++
++	/*
++	 * Can we deliver an interrupt to any of the threads?
++	 */
++	disabled_threads = ldsr_thread_get_interrupts();
++	possible_threads = deliver_to & ~disabled_threads;
++	if (unlikely(!possible_threads)) {
++#if defined(CONFIG_SMP)
++		/*
++		 * In the SMP case, we can not wait because 1 cpu might be
++		 * sending an IPI to another cpu which is currently blocked.
++		 * The only way to ensure IPI delivery is to backout and
++		 * keep trying.  For SMP, we don't sleep until the interrupts
++		 * are delivered.
++		 */
++		thread_enable_mask(deliver_to);
++		ldsr_backout_of_irq(vector, deliver_to);
++		return;
++#else
++		/*
++		 * In the UP case, we have nothing to do so we should wait.
++		 *
++		 * Since the INT_MASK0 and INT_MASK1 are "re-loaded" before we
++		 * suspend in the outer loop, we do not need to save them here.
++		 *
++		 * We test that we were awakened for our specific interrupts
++		 * because the ldsr mask/unmask operations will force the ldsr
++		 * awake even if the interrupt on the mainline thread is not
++		 * completed.
++		 */
++		unsigned int scratch = 0;
++		thread_enable_mask(deliver_to);
++		asm volatile (
++		"	move.4	INT_MASK0, %1		\n\t"
++		"	move.4	INT_MASK1, #0		\n\t"
++
++		"1:	suspend				\n\t"
++		"	move.4	%0, INT_STAT0		\n\t"
++		"	and.4	%0, %0, %1		\n\t"
++		"	jmpeq.f	1b			\n\t"
++
++		"	move.4	INT_CLR0, %2		\n\t"
++			: "+r" (scratch)
++			: "d" (ldsr_suspend_mask), "r" (ldsr_soft_irq_mask)
++			: "cc"
++		);
++
++		/*
++		 * This delay is sized to coincide with the time it takes a
++		 * thread to complete the exit (see return_from_interrupt).
++		 */
++		ldsr_interrupt.retry++;
++		__delay(10);
++		goto retry;
++#endif
++	}
++
++	/*
++	 * If any of the global locks are held, we can not deliver any
++	 * interrupts, we spin delay(10) and then try again.  If our
++	 * spinning becomes a bottle neck, we will need to suspend but for
++	 * now lets just spin.
++	 */
++	asm volatile (
++		"move.4	%0, scratchpad1		\n\t"
++		: "=r" (global_locks)
++		:
++	);
++	if (unlikely(global_locks & 0xffff0000)) {
++		thread_enable_mask(deliver_to);
++
++		/*
++		 * This delay is sized to coincide with the average time it
++		 * takes a thread to release a global lock.
++		 */
++		ldsr_interrupt.retry++;
++		__delay(10);
++		goto retry;
++	}
++
++	/*
++	 * Deliver to one cpu.
++	 */
++	if (!all) {
++		/*
++		 * Find our victim and then enable everyone else.
++		 */
++		unsigned long victim = ldsr_rotate_threads(possible_threads);
++		DEBUG_ASSERT((deliver_to & (1 << victim)));
++		DEBUG_ASSERT((possible_threads & (1 << victim)));
++
++		deliver_to &= ~(1 << victim);
++		if (deliver_to) {
++			thread_enable_mask(deliver_to);
++		}
++		ldsr_ctxsw_thread(vector, victim);
++		return;
++	}
++
++	/*
++	 * If we can't deliver to some threads, wake them
++	 * back up and reset things to deliver to them.
++	 */
++	deliver_to &= ~possible_threads;
++	if (unlikely(deliver_to)) {
++		thread_enable_mask(deliver_to);
++		ldsr_backout_of_irq(vector, deliver_to);
++	}
++
++	/*
++	 * Deliver to all possible threads(s).
++	 */
++	while (possible_threads) {
++		unsigned long victim = ffz(~possible_threads);
++		possible_threads &= ~(1 << victim);
++		ldsr_ctxsw_thread(vector, victim);
++	}
++}
++
++/*
++ * ldsr_thread()
++ *	This thread acts as the interrupt controller for Linux.
++ */
++static void ldsr_thread(void *arg)
++{
++	int stat0;
++	int stat1;
++	int interrupt0;
++	int interrupt1;
++	long long interrupts;
++	unsigned long cpus;
++
++#if !defined(CONFIG_SMP)
++	/*
++	 * In a non-smp configuration, we can not use the cpu(s) arrays because
++	 * there is not a 1-1 correspondence between cpus(s) and our threads.
++	 * Thus we must get a local idea of the mainline threads and use the
++	 * one and only 1 set as the victim.  We do this once before the ldsr
++	 * loop.
++	 *
++	 * In the SMP case, we will use the cpu(s) map to determine which cpu(s)
++	 * are valid to send interrupts to.
++	 */
++	int victim = 0;
++	unsigned int mainline = thread_get_mainline();
++	if (mainline == 0) {
++		panic("no mainline Linux threads to interrupt");
++		return;
++	}
++	victim = ffz(~mainline);
++	cpus = (1 << victim);
++#endif
++
++	while (1) {
++		/*
++		 * If one changes this code not to reload the INT_MASK(s), you
++		 * need to know that code in the lock waiting above does not
++		 * reset the MASK registers back; so that code will need to be
++		 * changed.
++		 */
++		ldsr_lock_acquire();
++		asm volatile (
++		"	move.4 INT_MASK0, %0	\n\t"
++		"	move.4 INT_MASK1, %1	\n\t"
++			:
++			: "U4" (ldsr_interrupt.mask0), "U4" (ldsr_interrupt.mask1)
++		);
++		ldsr_lock_release();
++		thread_suspend();
++
++		/*
++		 * Read the interrupt status registers
++		 */
++		asm volatile (
++			"move.4 %0, INT_STAT0	\n\t"
++			"move.4 %1, INT_STAT1	\n\t"
++			: "=r" (stat0), "=r" (stat1)
++			:
++		);
++
++		/*
++		 * We only care about interrupts that we have been told to care
++		 * about.  The interrupt must be enabled, unmasked, and have
++		 * occurred in the hardware.
++		 */
++		ldsr_lock_acquire();
++		interrupt0 = ldsr_interrupt.enabled0 &
++			ldsr_interrupt.mask0 & stat0;
++		interrupt1 = ldsr_interrupt.enabled1 &
++			ldsr_interrupt.mask1 & stat1;
++		ldsr_lock_release();
++
++		/*
++		 * For each interrupt in the "snapshot" we will mask the
++		 * interrupt handle the interrupt (typically calling do_IRQ()).
++		 *
++		 * The interrupt is unmasked by desc->chip->end() function in
++		 * the per chip generic interrupt handling code
++		 * (arch/ubicom32/kernel/irq.c).8
++		 */
++		interrupts = ((unsigned long long)interrupt1 << 32) |
++			interrupt0;
++		while (interrupts) {
++			int all = 0;
++			int vector = ldsr_rotate_interrupts(interrupts);
++			interrupts &= ~((unsigned long long)1 << vector);
++
++			/*
++			 * Now mask off this vector so that the LDSR ignores
++			 * it until it is acknowledged.
++			 */
++			ldsr_mask_vector(vector);
++#if !defined(CONFIG_SMP)
++			ldsr_deliver_interrupt(vector, cpus, all);
++#else
++			cpus = smp_get_affinity(vector, &all);
++			if (cpus) {
++				ldsr_deliver_interrupt(vector, cpus, all);
++			}
++#endif
++		}
++	}
++
++	/* NOTREACHED */
++}
++
++/*
++ * ldsr_mask_vector()
++ *	Temporarily mask the interrupt vector, turn off the bit in the mask
++ *	register.
++ */
++void ldsr_mask_vector(unsigned int vector)
++{
++	unsigned int mask;
++	if (vector < 32) {
++		mask = ~(1 << vector);
++		ldsr_lock_acquire();
++		ldsr_interrupt.mask0 &= mask;
++		ldsr_lock_release();
++		thread_resume(ldsr_tid);
++		return;
++	}
++
++	mask = ~(1 << (vector - 32));
++	ldsr_lock_acquire();
++	ldsr_interrupt.mask1 &= mask;
++	ldsr_lock_release();
++	thread_resume(ldsr_tid);
++}
++
++/*
++ * ldsr_unmask_vector()
++ *	Unmask the interrupt vector so that it can be used, turn on the bit in
++ *	the mask register.
++ *
++ * Because it is legal for the interrupt path to disable an interrupt,
++ * the unmasking code must ensure that disabled interrupts are not
++ * unmasked.
++ */
++void ldsr_unmask_vector(unsigned int vector)
++{
++	unsigned int mask;
++	if (vector < 32) {
++		mask = (1 << vector);
++		ldsr_lock_acquire();
++		ldsr_interrupt.mask0 |= (mask & ldsr_interrupt.enabled0);
++		ldsr_lock_release();
++		thread_resume(ldsr_tid);
++		return;
++	}
++
++	mask = (1 << (vector - 32));
++	ldsr_lock_acquire();
++	ldsr_interrupt.mask1 |= (mask & ldsr_interrupt.enabled1);
++	ldsr_lock_release();
++	thread_resume(ldsr_tid);
++}
++
++/*
++ * ldsr_enable_vector()
++ *	The LDSR implements an interrupt controller and has a local (to the
++ *	LDSR) copy of its interrupt mask.
++ */
++void ldsr_enable_vector(unsigned int vector)
++{
++	unsigned int mask;
++	if (vector < 32) {
++		mask = (1 << vector);
++		ldsr_lock_acquire();
++		ldsr_interrupt.enabled0 |= mask;
++		ldsr_interrupt.mask0 |= mask;
++		ldsr_lock_release();
++		thread_resume(ldsr_tid);
++		return;
++	}
++
++	mask = (1 << (vector - 32));
++	ldsr_lock_acquire();
++	ldsr_interrupt.enabled1 |= mask;
++	ldsr_interrupt.mask1 |= mask;
++	ldsr_lock_release();
++	thread_resume(ldsr_tid);
++}
++
++/*
++ * ldsr_disable_vector()
++ *	The LDSR implements an interrupt controller and has a local (to the
++ *	LDSR) copy of its interrupt mask.
++ */
++void ldsr_disable_vector(unsigned int vector)
++{
++	unsigned int mask;
++
++	if (vector < 32) {
++		mask = ~(1 << vector);
++		ldsr_lock_acquire();
++		ldsr_interrupt.enabled0 &= mask;
++		ldsr_interrupt.mask0 &= mask;
++		ldsr_lock_release();
++		thread_resume(ldsr_tid);
++		return;
++	}
++
++	mask = ~(1 << (vector - 32));
++	ldsr_lock_acquire();
++	ldsr_interrupt.enabled1 &= mask;
++	ldsr_interrupt.mask1 &= mask;
++	ldsr_lock_release();
++	thread_resume(ldsr_tid);
++}
++
++/*
++ * ldsr_get_threadid()
++ *	Return the threadid of the LDSR thread.
++ */
++thread_t ldsr_get_threadid(void)
++{
++	return ldsr_tid;
++}
++
++/*
++ * ldsr_set_trap_irq()
++ *	Save away the trap Soft IRQ
++ *
++ * See the per thread lock suspend code above for an explination.
++ */
++void ldsr_set_trap_irq(unsigned int irq)
++{
++	ldsr_trap_irq = irq;
++	ldsr_trap_irq_mask = (1 << irq);
++	ldsr_suspend_mask |= ldsr_trap_irq_mask;
++}
++
++/*
++ * ldsr_init()
++ *	Initialize the LDSR (Interrupt Controller)
++ */
++void ldsr_init(void)
++{
++#if defined(CONFIG_IRQSTACKS)
++	int i;
++	union irq_ctx *icp;
++#endif
++
++	void *stack_high = (void *)ldsr_stack_space;
++	stack_high += sizeof(ldsr_stack_space);
++	stack_high -= 8;
++
++
++	/*
++	 * Obtain a soft IRQ to use
++	 */
++	if (irq_soft_alloc(&ldsr_soft_irq) < 0) {
++		panic("no software IRQ is available\n");
++		return;
++	}
++	ldsr_soft_irq_mask |= (1 << ldsr_soft_irq);
++	ldsr_suspend_mask |= ldsr_soft_irq_mask;
++
++	/*
++	 * Now allocate and start the LDSR thread.
++	 */
++	ldsr_tid = thread_alloc();
++	if (ldsr_tid < 0) {
++		panic("no thread available to run LDSR");
++		return;
++	}
++
++#if defined(CONFIG_IRQSTACKS)
++	/*
++	 * Initialize the per-cpu irq thread_info structure that
++	 * is at the top of each per-cpu irq stack.
++	 */
++	icp = (union irq_ctx *)
++		(((unsigned long)percpu_irq_stacks + (THREAD_SIZE - 1)) & ~(THREAD_SIZE - 1));
++	for (i = 0; i < NR_CPUS; i++) {
++		struct thread_info *ti = &(icp->tinfo);
++		ti->task = NULL;
++		ti->exec_domain = NULL;
++		ti->cpu = i;
++		ti->preempt_count = 0;
++		ti->interrupt_nesting = 0;
++		percpu_irq_ctxs[i] = icp++;
++	}
++#endif
++	thread_start(ldsr_tid, ldsr_thread, NULL,
++		     stack_high, THREAD_TYPE_NORMAL);
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/Makefile
+@@ -0,0 +1,64 @@
++#
++# arch/ubicom32/kernel/Makefile
++#	Main Makefile for the Ubicom32 arch directory.
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not, 
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++
++extra-y := head.o vmlinux.lds
++
++obj-y += \
++	devtree.o \
++	dma.o \
++	flat.o \
++	init_task.o \
++	irq.o \
++	ldsr.o \
++	os_node.o \
++	process.o \
++	processor.o \
++	ptrace.o \
++	setup.o \
++	signal.o \
++	stacktrace.o \
++	sys_ubicom32.o \
++	syscalltable.o \
++	thread.o \
++	time.o \
++	traps.o \
++	ubicom32_context_switch.o \
++	ubicom32_ksyms.o \
++	ubicom32_syscall.o \
++	unaligned_trap.o
++
++obj-$(CONFIG_MODULES)				+= module.o
++obj-$(CONFIG_COMEMPCI)				+= comempci.o
++obj-$(CONFIG_SMP)				+= smp.o topology.o
++obj-$(CONFIG_ACCESS_OK_CHECKS_ENABLED)		+= uaccess.o
++obj-$(CONFIG_GENERIC_CLOCKEVENTS)		+= timer_device.o
++obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)	+= timer_broadcast.o
++
++ifndef CONFIG_GENERIC_CLOCKEVENTS
++obj-y			+= timer_tick.o
++endif
+--- /dev/null
++++ b/arch/ubicom32/kernel/module.c
+@@ -0,0 +1,463 @@
++/*
++ * arch/ubicom32/kernel/module.c
++ *   Ubicom32 architecture loadable module support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/moduleloader.h>
++#include <linux/bug.h>
++#include <linux/elf.h>
++#include <linux/vmalloc.h>
++#include <linux/fs.h>
++#include <linux/string.h>
++#include <linux/kernel.h>
++#include <asm/ocm-alloc.h>
++
++#if 0
++#define DEBUGP printk
++#else
++#define DEBUGP(fmt...)
++#endif
++
++static void _module_free_ocm(struct module *mod)
++{
++	printk(KERN_INFO "module arch cleanup %s: OCM instruction memory free "
++	       " of %d @%p\n", mod->name, mod->arch.ocm_inst_size,
++	       mod->arch.ocm_inst);
++
++	if (mod->arch.ocm_inst) {
++		ocm_inst_free(mod->arch.ocm_inst);
++		mod->arch.ocm_inst = 0;
++		mod->arch.ocm_inst_size = 0;
++	}
++}
++
++void *module_alloc(unsigned long size)
++{
++	if (size == 0)
++		return NULL;
++	return vmalloc(size);
++}
++
++
++/* Free memory returned from module_alloc */
++void module_free(struct module *mod, void *module_region)
++{
++	vfree(module_region);
++	/* FIXME: If module_region == mod->init_region, trim exception
++	   table entries. */
++
++	/*
++	 * This is expected to be final module free, use this to prune the
++	 * ocm
++	 */
++	if (module_region && module_region == mod->module_core)
++		_module_free_ocm(mod);
++
++}
++
++/*
++ * module_frob_arch_sections()
++ *	Called from kernel/module.c allowing arch specific handling of
++ *	sections/headers.
++ */
++int module_frob_arch_sections(Elf_Ehdr *hdr,
++			      Elf_Shdr *sechdrs,
++			      char *secstrings,
++			      struct module *mod)
++{
++	Elf_Shdr *s, *sechdrs_end;
++	void *ocm_inst = NULL;
++	int ocm_inst_size = 0;
++
++	/*
++	 * Ubicom32 v3 and v4 are almost binary compatible but not completely.
++	 * To be safe check that the module was compiled with the correct -march
++	 * which is flags.
++	 */
++#ifdef CONFIG_UBICOM32_V4
++	if ((hdr->e_flags & 0xFFFF) != EF_UBICOM32_V4) {
++		printk(KERN_WARNING "Module %s was not compiled for "
++		       "ubicom32v4, elf_flags:%x,\n",
++		       mod->name, hdr->e_flags);
++		return -ENOEXEC;
++	}
++#elif defined CONFIG_UBICOM32_V3
++	if ((hdr->e_flags & 0xFFFF) != EF_UBICOM32_V3) {
++		printk(KERN_WARNING "Module %s was not compiled for "
++		       "ubicom32v3, elf_flags:%x\n",
++		       mod->name, hdr->e_flags);
++		return -ENOEXEC;
++	}
++#else
++#error Unknown/Unsupported ubicom32 architecture.
++#endif
++
++	/*
++	 * XXX: sechdrs are vmalloced in kernel/module.c
++	 * and would be vfreed just after module is loaded,
++	 * so we hack to keep the only information we needed
++	 * in mod->arch to correctly free L1 I/D sram later.
++	 * NOTE: this breaks the semantic of mod->arch structure.
++	 */
++	sechdrs_end = sechdrs + hdr->e_shnum;
++	for (s = sechdrs; s < sechdrs_end; ++s) {
++		if (strncmp(".ocm_text", secstrings + s->sh_name, 9) == 0)
++			ocm_inst_size += s->sh_size;
++	}
++
++	if (!ocm_inst_size)
++		return 0;
++
++	ocm_inst = ocm_inst_alloc(ocm_inst_size, 0 /* internal */);
++	if (ocm_inst == NULL) {
++#ifdef CONFIG_OCM_MODULES_FALLBACK_TO_DDR
++		printk(KERN_WARNING
++		       "module %s: OCM instruction memory allocation of %d"
++		       "failed, fallback to DDR\n", mod->name, ocm_inst_size);
++		return 0;
++#else
++		printk(KERN_ERR
++		       "module %s: OCM instruction memory allocation of %d"
++		       "failed.\n", mod->name, ocm_inst_size);
++		return -ENOMEM;
++#endif
++	}
++
++	mod->arch.ocm_inst = ocm_inst;
++	mod->arch.ocm_inst_size = ocm_inst_size;
++
++	printk(KERN_INFO
++	       "module %s: OCM instruction memory allocation of %d @%p\n",
++	       mod->name, mod->arch.ocm_inst_size, mod->arch.ocm_inst);
++
++	for (s = sechdrs; s < sechdrs_end; ++s) {
++		if (strncmp(".ocm_text", secstrings + s->sh_name, 9) == 0) {
++			memcpy(ocm_inst, (void *)s->sh_addr, s->sh_size);
++			s->sh_flags &= ~SHF_ALLOC;
++			s->sh_addr = (unsigned long)ocm_inst;
++			ocm_inst += s->sh_size;
++		}
++	}
++
++	return 0;
++}
++
++int apply_relocate(Elf32_Shdr *sechdrs,
++		   const char *strtab,
++		   unsigned int symindex,
++		   unsigned int relsec,
++		   struct module *me)
++{
++	DEBUGP("Invalid Applying relocate section %u to %u\n", relsec,
++	       sechdrs[relsec].sh_info);
++	return -EINVAL;
++}
++
++int apply_relocate_add(Elf32_Shdr *sechdrs,
++		       const char *strtab,
++		       unsigned int symindex,
++		       unsigned int relsec,
++		       struct module *me)
++{
++	unsigned int i;
++	Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
++	Elf32_Sym *sym;
++	uint32_t *location;
++	uint32_t insn;
++
++	DEBUGP("Applying relocate_add section %u to %u\n", relsec,
++	       sechdrs[relsec].sh_info);
++	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
++		uint32_t v;
++		const int elf32_rtype = ELF32_R_TYPE(rel[i].r_info);
++
++		/* This is where to make the change */
++		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
++			+ rel[i].r_offset;
++		/* This is the symbol it is referring to.  Note that all
++		   undefined symbols have been resolved.  */
++		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
++			+ ELF32_R_SYM(rel[i].r_info);
++
++		v = rel[i].r_addend + sym->st_value;
++
++
++		switch (elf32_rtype) {
++		case R_UBICOM32_32:
++		{
++			/*
++			 * Store the 32 bit relocation as is.
++			 */
++			*location = v;
++			break;
++		}
++		case R_UBICOM32_HI24:
++		{
++			/*
++			 * 24 bit relocation that is part of the MOVEAI
++			 * instruction. The 24 bits come from bits 7 - 30 of the
++			 * relocation. Theses bits eventually get split into 2
++			 * fields in the instruction encoding.
++			 *
++			 * - Bits 7 - 27 of the relocation are encoded into bits
++			 * 0 - 20 of the instruction.
++			 *
++			 *  - Bits 28 - 30 of the relocation are encoded into
++			 *  bit 24 - 26 of the instruction.
++			 */
++			uint32_t valid24 = (v >> 7) & 0xffffff;
++			insn = *location;
++
++			insn &= ~(0x1fffff | (0x7 << 24));
++			insn |= (valid24 & 0x1fffff);
++			insn |= ((valid24 & 0xe00000) << 3);
++			*location = insn;
++		}
++		break;
++		case R_UBICOM32_LO7_S:
++		case R_UBICOM32_LO7_2_S:
++		case R_UBICOM32_LO7_4_S:
++		{
++			/*
++			 * Bits 0 - 6 of the relocation are encoded into the
++			 * 7bit unsigned immediate fields of the SOURCE-1 field
++			 * of the instruction.  The immediate value is left
++			 * shifted by (0, 1, 2) based on the operand size.
++			 */
++			uint32_t valid7 = v & 0x7f;
++			insn = *location;
++
++			if (elf32_rtype == R_UBICOM32_LO7_2_S) {
++				valid7 >>= 1;
++			} else if (elf32_rtype == R_UBICOM32_LO7_4_S) {
++				valid7 >>= 2;
++			}
++
++			insn &= ~(0x1f | (0x3 << 8));
++			insn |= (valid7 & 0x1f);
++			insn |= ((valid7 & 0x60) << 3);
++			*location = insn;
++		}
++		break;
++		case R_UBICOM32_LO7_D:
++		case R_UBICOM32_LO7_2_D:
++		case R_UBICOM32_LO7_4_D:
++		{
++			/*
++			 * Bits 0 - 6 of the relocation are encoded into the
++			 * 7bit unsigned immediate fields of the DESTINATION
++			 * field of the instruction.  The immediate value is
++			 * left shifted by (0, 1, 2) based on the operand size.
++			 */
++			uint32_t valid7 = v & 0x7f;
++			insn = *location;
++
++			if (elf32_rtype == R_UBICOM32_LO7_2_D) {
++				valid7 >>= 1;
++			} else if (elf32_rtype == R_UBICOM32_LO7_4_D) {
++				valid7 >>= 2;
++			}
++
++			insn &= ~((0x1f | (0x3 << 8)) << 16);
++			insn |= ((valid7 & 0x1f) << 16);
++			insn |= ((valid7 & 0x60) << 19);
++			*location = insn;
++		}
++		break;
++		case R_UBICOM32_LO7_CALLI:
++		case R_UBICOM32_LO16_CALLI:
++		{
++			/*
++			 * Extract the offset for a CALLI instruction. The
++			 * offsets can be either 7 bits or 18 bits. Since all
++			 * instructions in ubicom32 architecture are at work
++			 * aligned addresses the truncated offset is right
++			 * shifted by 2 before being encoded in the instruction.
++			 */
++			uint32_t val;
++			if (elf32_rtype == R_UBICOM32_LO7_CALLI) {
++				val  = v & 0x7f;
++			} else {
++				val  = v & 0x3ffff;
++			}
++
++			val >>= 2;
++
++			insn = *location;
++
++			insn &= ~0x071f071f;
++			insn |= (val & 0x1f) << 0;
++			val >>= 5;
++			insn |= (val & 0x07) << 8;
++			val >>= 3;
++			insn |= (val & 0x1f) << 16;
++			val >>= 5;
++			insn |= (val & 0x07) << 24;
++			*location = insn;
++		}
++		break;
++		case R_UBICOM32_24_PCREL:
++		{
++			/*
++			 * Extract 26 bit signed PC relative offset for CALL
++			 * instructions. Since instruction addresses are word
++			 * aligned the offset is right shited by 2 before
++			 * encoding into instruction.
++			 */
++			int32_t val = v - (int32_t)location;
++
++			/*
++			 * Check that the top 7 bits are all equal to the sign
++			 * bit (26), i.e all 0's or all 1's.  If they are not then
++			 * the absolute difference is greater than 25 bits.
++			 */
++			if (((uint32_t)val & 0xFE000000) != 0xFE000000 &&
++				((uint32_t)val & 0xFE000000) != 0x0) {
++				/*
++				 * The relocation is beyond our addressable
++				 * range with a 26 bit call.
++				 */
++				printk(KERN_ERR "module %s: PC Relative "
++					"relocation out of range: "
++					"%u (%x->%x, %x)\n",
++					me->name, elf32_rtype,
++					v, (uint32_t) location, val);
++				return -ENOEXEC;
++			}
++
++			val = (val & 0x3ffffff) >> 2;
++			insn = *location;
++			insn = insn & 0xf8e00000;
++
++			insn |= (val >> 21) << 24;
++			insn |= (val & 0x1fffff);
++			*location = insn;
++		}
++		break;
++		case R_UBICOM32_LO16:
++		case R_UBICOM32_HI16:
++		{
++			/*
++			 * 16 bit immediate value that is encoded into bit 0 -
++			 * 15 of the instruction.
++			 */
++			uint32_t val;
++
++			if (elf32_rtype == R_UBICOM32_LO16) {
++				val  = v & 0xffff;
++			} else {
++				val  = (v >> 16) & 0xffff;
++			}
++
++			insn = *location;
++			insn &= 0xffff0000;
++
++			insn |= val;
++			*location = insn;
++		}
++		break;
++		case R_UBICOM32_21_PCREL:
++		{
++			/*
++			 * Extract 23 bit signed PC relative offset for JMP<cc>
++			 * instructions. Since instruction addresses are word
++			 * aligned the offset is right shited by 2 before
++			 * encoding into instruction.
++			 */
++			int32_t val = v - (int32_t)location;
++
++			val = (val & 0x7fffff) >> 2;
++			insn = *location;
++			insn = insn & 0xffe00000;
++
++			insn |= (val >> 21) << 24;
++			insn |= val;
++			*location = insn;
++		}
++		break;
++		default:
++			BUG();
++			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
++			       me->name, elf32_rtype);
++			return -ENOEXEC;
++		}
++	}
++	return 0;
++}
++
++int module_finalize(const Elf_Ehdr *hdr,
++		    const Elf_Shdr *sechdrs,
++		    struct module *mod)
++{
++	unsigned int i, strindex = 0, symindex = 0;
++	char *secstrings;
++	int err;
++
++	err = module_bug_finalize(hdr, sechdrs, mod);
++	if (err)
++		return err;
++
++	if (!mod->arch.ocm_inst) {
++		/*
++		 * No OCM code, so nothing more to do.
++		 */
++		return 0;
++	}
++
++	secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
++
++	for (i = 1; i < hdr->e_shnum; i++) {
++		/* Internal symbols and strings. */
++		if (sechdrs[i].sh_type == SHT_SYMTAB) {
++			symindex = i;
++			strindex = sechdrs[i].sh_link;
++		}
++	}
++
++	for (i = 1; i < hdr->e_shnum; i++) {
++		const char *strtab = (char *)sechdrs[strindex].sh_addr;
++		unsigned int info = sechdrs[i].sh_info;
++
++		/* Not a valid relocation section? */
++		if (info >= hdr->e_shnum)
++			continue;
++
++		if ((sechdrs[i].sh_type == SHT_RELA) &&
++		    (strncmp(".rela.ocm_text",
++			     secstrings + sechdrs[i].sh_name, 5 + 9) == 0)) {
++			err = apply_relocate_add((Elf_Shdr *) sechdrs, strtab,
++						 symindex, i, mod);
++			if (err)
++				return err;
++		}
++	}
++
++	return 0;
++}
++
++void module_arch_cleanup(struct module *mod)
++{
++	module_bug_cleanup(mod);
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/os_node.c
+@@ -0,0 +1,80 @@
++/*
++ * arch/ubicom32/kernel/os_node.c
++ *   <TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ */
++#include "linux/types.h"
++#include "linux/linkage.h"
++#include "linux/uts.h"
++#include "linux/utsrelease.h"
++#include "linux/version.h"
++#include <asm/ocm_size.h>
++#include <asm/devtree.h>
++#include <asm/ip5000.h>
++
++extern asmlinkage void *_start;
++
++/*
++ * This file provides static information to the boot code allowing it to decide
++ * if the os is compatible. Thus hopefully enabling the boot code to prevent
++ * accidentally booting a kernel that has no hope of running.
++ */
++struct os_node {
++	struct devtree_node node;
++	unsigned long version; /* Always 1 */
++	unsigned long entry_point;
++	const char    os_name[32]; /* For diagnostic purposes only */
++	const char    os_version_str[32];
++	unsigned long os_version_num;
++	unsigned long expected_ocm_code_start;/* OS Code */
++	unsigned long expected_ocm_data_end;  /* OS Data */
++	unsigned long expected_ram_start;
++	unsigned long expected_ram_end;
++	unsigned long arch_version;
++};
++
++
++/*
++ * The os_node is only referenced by head.S and should never be modified at
++ * run-time.
++ */
++asmlinkage const struct os_node _os_node = {
++	.node = {
++		.next = NULL,
++		.name = { "OS" },
++		.magic = 0x10203040,
++	},
++	.version = 0x10001,
++	.entry_point = (unsigned long)&_start,
++#if APP_OCM_CODE_SIZE || APP_OCM_DATA_SIZE
++	.expected_ocm_code_start = OCMSTART + APP_OCM_CODE_SIZE,
++	.expected_ocm_data_end   = OCMEND   - APP_OCM_DATA_SIZE,
++#else
++	.expected_ocm_code_start = OCMEND,
++	.expected_ocm_data_end   = OCMEND,
++#endif
++	.os_name = { UTS_SYSNAME },
++	.os_version_str = { UTS_RELEASE },
++	.os_version_num = LINUX_VERSION_CODE,
++	.expected_ram_start = CONFIG_KERNELBASE,
++	.expected_ram_end = CONFIG_RAMBASE + CONFIG_RAMSIZE,
++	.arch_version = UBICOM32_ARCH_VERSION
++};
+--- /dev/null
++++ b/arch/ubicom32/kernel/process.c
+@@ -0,0 +1,494 @@
++/*
++ * arch/ubicom32/kernel/process.c
++ *   Ubicom32 architecture-dependent process handling.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1995  Hamish Macdonald
++ *
++ * 68060 fixes by Jesper Skov
++ *
++ * uClinux changes
++ * Copyright (C) 2000-2002, David McCullough <davidm@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++/*
++ * This file handles the architecture-dependent parts of process handling..
++ */
++
++#include <linux/module.h>
++#include <linux/errno.h>
++#include <linux/sched.h>
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/smp.h>
++#include <linux/smp_lock.h>
++#include <linux/stddef.h>
++#include <linux/unistd.h>
++#include <linux/ptrace.h>
++#include <linux/slab.h>
++#include <linux/user.h>
++#include <linux/a.out.h>
++#include <linux/interrupt.h>
++#include <linux/reboot.h>
++#include <linux/fs.h>
++#include <linux/pm.h>
++
++#include <linux/uaccess.h>
++#include <asm/system.h>
++#include <asm/traps.h>
++#include <asm/machdep.h>
++#include <asm/setup.h>
++#include <asm/pgtable.h>
++#include <asm/ip5000.h>
++#include <asm/range-protect.h>
++
++asmlinkage void ret_from_fork(void);
++
++void (*pm_power_off)(void) = machine_power_off;
++EXPORT_SYMBOL(pm_power_off);
++
++/* machine-dependent / hardware-specific power functions */
++void (*mach_reset)(void);
++void (*mach_halt)(void);
++void (*mach_power_off)(void);
++
++/*
++ * cpu_idle()
++ *	The idle thread.
++ *
++ * Our idle loop suspends and is woken up by a timer interrupt.
++ */
++void cpu_idle(void)
++{
++	while (1) {
++		local_irq_disable();
++		while (!need_resched()) {
++			local_irq_enable();
++			thread_suspend();
++			local_irq_disable();
++		}
++		local_irq_enable();
++		preempt_enable_no_resched();
++		schedule();
++		preempt_disable();
++	}
++}
++
++/*
++ * dump_fpu()
++ *
++ *	Fill in the fpu structure for a core dump. (just a stub as we don't have
++ *	an fpu)
++ */
++int dump_fpu(struct pt_regs *regs, elf_fpregset_t * fpregs)
++{
++	return 1;
++}
++
++/*
++ * machine_restart()
++ *	Resets the system.
++ */
++void machine_restart(char *__unused)
++{
++	/*
++	 * Disable all threads except myself. We can do this
++	 * directly without needing to call smp_send_stop
++	 * because we have a unique architecture where
++	 * one thread can disable one or more other threads.
++	 */
++	thread_disable_others();
++
++	/*
++	 * Call the hardware-specific machine reset function.
++	 */
++	if (mach_reset) {
++		mach_reset();
++	}
++
++	printk(KERN_EMERG "System Restarting\n");
++
++	/*
++	 * Set watchdog to trigger (after 1ms delay) (12 Mhz is the fixed OSC)
++	 */
++	UBICOM32_IO_TIMER->tkey = TIMER_TKEYVAL;
++	UBICOM32_IO_TIMER->wdcom = UBICOM32_IO_TIMER->mptval +
++		(12000000 / 1000);
++	UBICOM32_IO_TIMER->wdcfg = 0;
++	UBICOM32_IO_TIMER->tkey = 0;
++
++	/*
++	 * Wait for watchdog
++	 */
++	asm volatile (
++		"	move.4		MT_EN, #0		\n\t"
++		"	pipe_flush	0			\n\t"
++	);
++
++	local_irq_disable();
++	for (;;) {
++		thread_suspend();
++	}
++}
++
++/*
++ * machine_halt()
++ *	Halt the machine.
++ *
++ * Similar to machine_power_off, but don't shut off power.  Add code
++ * here to freeze the system for e.g. post-mortem debug purpose when
++ * possible.  This halt has nothing to do with the idle halt.
++ */
++void machine_halt(void)
++{
++	/*
++	 * Disable all threads except myself. We can do this
++	 * directly without needing to call smp_send_stop
++	 * because we have a unique architecture where
++	 * one thread can disable one or more other threads.
++	 */
++	thread_disable_others();
++
++	/*
++	 * Call the hardware-specific machine halt function.
++	 */
++	if (mach_halt) {
++		mach_halt();
++	}
++
++	printk(KERN_EMERG "System Halted, OK to turn off power\n");
++	local_irq_disable();
++	for (;;) {
++		thread_suspend();
++	}
++}
++
++/*
++ * machine_power_off()
++ *	Turn the power off, if a power off handler is defined, otherwise, spin
++ *	endlessly.
++ */
++void machine_power_off(void)
++{
++	/*
++	 * Disable all threads except myself. We can do this
++	 * directly without needing to call smp_send_stop
++	 * because we have a unique architecture where
++	 * one thread can disable one or more other threads.
++	 */
++	thread_disable_others();
++
++	/*
++	 * Call the hardware-specific machine power off function.
++	 */
++	if (mach_power_off) {
++		mach_power_off();
++	}
++
++	printk(KERN_EMERG "System Halted, OK to turn off power\n");
++	local_irq_disable();
++	for (;;) {
++		thread_suspend();
++	}
++}
++
++/*
++ * show_regs()
++ *	Print out all of the registers.
++ */
++void show_regs(struct pt_regs *regs)
++{
++	unsigned int i;
++
++	printk(KERN_NOTICE "regs: %p, tid: %d\n",
++		(void *)regs,
++		thread_get_self());
++
++	printk(KERN_NOTICE "pc: %08x, previous_pc: %08x\n\n",
++		(unsigned int)regs->pc,
++		(unsigned int)regs->previous_pc);
++
++	printk(KERN_NOTICE "Data registers\n");
++	for (i = 0; i < 16; i++) {
++		printk("D%02d: %08x, ", i, (unsigned int)regs->dn[i]);
++		if ((i % 4) == 3) {
++			printk("\n");
++		}
++	}
++	printk("\n");
++
++	printk(KERN_NOTICE "Address registers\n");
++	for (i = 0; i < 8; i++) {
++		printk("A%02d: %08x, ", i, (unsigned int)regs->an[i]);
++		if ((i % 4) == 3) {
++			printk("\n");
++		}
++	}
++	printk("\n");
++
++	printk(KERN_NOTICE "acc0: %08x-%08x, acc1: %08x-%08x\n",
++		(unsigned int)regs->acc0[1],
++		(unsigned int)regs->acc0[0],
++		(unsigned int)regs->acc1[1],
++		(unsigned int)regs->acc1[0]);
++
++	printk(KERN_NOTICE "mac_rc16: %08x, source3: %08x\n",
++		(unsigned int)regs->mac_rc16,
++		(unsigned int)regs->source3);
++
++	printk(KERN_NOTICE "inst_cnt: %08x, csr: %08x\n",
++		(unsigned int)regs->inst_cnt,
++		(unsigned int)regs->csr);
++
++	printk(KERN_NOTICE "int_mask0: %08x, int_mask1: %08x\n",
++		(unsigned int)regs->int_mask0,
++		(unsigned int)regs->int_mask1);
++
++	printk(KERN_NOTICE "frame_type: %d, nesting_level: %d, thread_type %d\n\n",
++		(int)regs->frame_type,
++		(int)regs->nesting_level,
++		(int)regs->thread_type);
++}
++
++/*
++ * kernel_thread_helper()
++ *	On execution d0 will be 0, d1 will be the argument to be passed to the
++ *	kernel function.  d2 contains the kernel function that needs to get
++ *	called. d3 will contain address to do_exit which need to get moved
++ *	into a5. On return from fork the child thread d0 will be 0. We call
++ *	this dummy function which in turn loads the argument
++ */
++asmlinkage void kernel_thread_helper(void);
++
++/*
++ * kernel_thread()
++ *	Create a kernel thread
++ */
++int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
++{
++	struct pt_regs regs;
++
++	memset(&regs, 0, sizeof(regs));
++
++	regs.dn[1] = (unsigned long)arg;
++	regs.dn[2] = (unsigned long)fn;
++	regs.dn[3] = (unsigned long)do_exit;
++	regs.an[5] = (unsigned long)kernel_thread_helper;
++	regs.pc = (unsigned long)kernel_thread_helper;
++	regs.nesting_level = 0;
++	regs.thread_type = KERNEL_THREAD;
++
++	return do_fork(flags | CLONE_VM | CLONE_UNTRACED,
++		       0, &regs, 0, NULL, NULL);
++}
++EXPORT_SYMBOL(kernel_thread);
++
++/*
++ * flush_thread()
++ *	XXX todo
++ */
++void flush_thread(void)
++{
++	/* XXX todo */
++}
++
++/*
++ * sys_fork()
++ *	Not implemented on no-mmu.
++ */
++asmlinkage int sys_fork(struct pt_regs *regs)
++{
++	/* fork almost works, enough to trick you into looking elsewhere :-( */
++	return -EINVAL;
++}
++
++/*
++ * sys_vfork()
++ *	By the time we get here, the non-volatile registers have also been saved
++ *	on the stack. We do some ugly pointer stuff here.. (see also copy_thread
++ *	which does context copy).
++ */
++asmlinkage int sys_vfork(struct pt_regs *regs)
++{
++	unsigned long old_sp = regs->an[7];
++	unsigned long old_a5 = regs->an[5];
++	unsigned long old_return_address;
++	long do_fork_return;
++
++	/*
++	 * Read the old retrun address from the stack.
++	 */
++	if (copy_from_user(&old_return_address,
++			   (void *)old_sp, sizeof(unsigned long))) {
++		force_sig(SIGSEGV, current);
++		return 0;
++	}
++
++	/*
++	 * Pop the vfork call frame by setting a5 and pc to the old_return
++	 * address and incrementing the stack pointer by 4.
++	 */
++	regs->an[5] = old_return_address;
++	regs->pc = old_return_address;
++	regs->an[7] += 4;
++
++	do_fork_return = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
++				 regs->an[7], regs, 0, NULL, NULL);
++
++	/*
++	 * Now we have to test if the return code is an error. If it is an error
++	 * then restore the frame and we will execute error processing in user
++	 * space. Other wise the child and the parent will return to the correct
++	 * places.
++	 */
++	if ((unsigned long)(do_fork_return) >= (unsigned long)(-125)) {
++		/*
++		 * Error case. We need to restore the frame.
++		 */
++		regs->an[5] = old_a5;
++		regs->pc = old_a5;
++		regs->an[7] = old_sp;
++	}
++
++	return do_fork_return;
++}
++
++/*
++ * sys_clone()
++ *	creates a child thread.
++ */
++asmlinkage int sys_clone(unsigned long clone_flags,
++			 unsigned long newsp,
++			 struct pt_regs *regs)
++{
++	if (!newsp)
++		newsp = regs->an[7];
++	return do_fork(clone_flags, newsp, regs, 0,
++		       NULL, NULL);
++}
++
++/*
++ * copy_thread()
++ *	low level thread copy, only used by do_fork in kernel/fork.c
++ */
++int copy_thread(int nr, unsigned long clone_flags,
++		unsigned long usp, unsigned long topstk,
++		struct task_struct *p, struct pt_regs *regs)
++{
++	struct pt_regs *childregs;
++
++	childregs = (struct pt_regs *)
++		(task_stack_page(p) + THREAD_SIZE - 8) - 1;
++
++	*childregs = *regs;
++
++	/*
++	 * Set return value for child to be 0.
++	 */
++	childregs->dn[0] = 0;
++
++	if (usp)
++		childregs->an[7] = usp;
++	else
++		childregs->an[7] = (unsigned long)task_stack_page(p) +
++			THREAD_SIZE - 8;
++
++	/*
++	 * Set up the switch_to frame to return to "ret_from_fork"
++	 */
++	p->thread.a5 = (unsigned long)ret_from_fork;
++	p->thread.sp = (unsigned long)childregs;
++
++	return 0;
++}
++
++/*
++ * sys_execve()
++ *	executes a new program.
++ */
++asmlinkage int sys_execve(char *name, char **argv,
++			  char **envp, struct pt_regs *regs)
++{
++	int error;
++	char *filename;
++
++	lock_kernel();
++	filename = getname(name);
++	error = PTR_ERR(filename);
++	if (IS_ERR(filename))
++		goto out;
++	error = do_execve(filename, argv, envp, regs);
++	putname(filename);
++	asm ("       .global sys_execve_complete\n"
++	     "       sys_execve_complete:");
++out:
++	unlock_kernel();
++	return error;
++}
++
++/*
++ * Return saved PC of a blocked thread.
++ */
++unsigned long thread_saved_pc(struct task_struct *tsk)
++{
++	return tsk->thread.a5;
++}
++
++
++unsigned long get_wchan(struct task_struct *p)
++{
++	unsigned long pc;
++
++	/*
++	 * If we don't have a process, or it is not the current
++	 * one or not RUNNING, it makes no sense to ask for a
++	 * wchan.
++	 */
++	if (!p || p == current || p->state == TASK_RUNNING)
++		return 0;
++
++	/*
++	 * TODO: If the process is in the middle of schedule, we
++	 * are supposed to do something different but for now we
++	 * will return the same thing in both situations.
++	 */
++	pc = thread_saved_pc(p);
++	if (in_sched_functions(pc))
++		return pc;
++	return pc;
++}
++
++/*
++ * __switch_to is the function that implements the contex save and
++ * switch within the kernel. Since this is a function call very few
++ * registers have to be saved to pull this off. d0 holds prev and we
++ * want to preserve it. prev_switch is a pointer to task->thread
++ * structure. This is where we will save the register state. next_switch
++ * is pointer to the next task's thread structure that holds the
++ * registers.
++ */
++asmlinkage void *__switch_to(struct task_struct *prev,
++			     struct thread_struct *prev_switch,
++			     struct thread_struct *next_switch)
++	__attribute__((naked));
+--- /dev/null
++++ b/arch/ubicom32/kernel/processor.c
+@@ -0,0 +1,258 @@
++/*
++ * arch/ubicom32/kernel/processor.c
++ *   Ubicom32 architecture processor info implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/sched.h>
++#include <linux/interrupt.h>
++#include <linux/irq.h>
++#include <linux/profile.h>
++#include <linux/clocksource.h>
++#include <linux/types.h>
++#include <linux/seq_file.h>
++#include <linux/delay.h>
++#include <linux/cpu.h>
++#include <asm/devtree.h>
++#include <asm/processor.h>
++#include <asm/cpu.h>
++
++struct procnode {
++	struct devtree_node dn;
++	unsigned int threads;
++	unsigned int timers;
++	unsigned int frequency;
++	unsigned int interrupt0;
++	unsigned int interrupt1;
++	void *socm;
++	void *eocm;
++	void *sdram;
++	void *edram;
++};
++
++struct procnode *pn;
++
++/*
++ * show_processorinfo()
++ *	Print the actual processor information.
++ */
++static void show_processorinfo(struct seq_file *m)
++{
++	char *cpu, *mmu, *fpu;
++	unsigned int clockfreq;
++	unsigned int chipid;
++
++	cpu = CPU;
++	mmu = "none";
++	fpu = "none";
++
++	asm volatile (
++	"move.4		%0, CHIP_ID	\n\t"
++	: "=r" (chipid)
++	);
++
++	/*
++	 * General Processor Information.
++	 */
++	seq_printf(m, "Vendor:\t\t%s\n", "Ubicom");
++	seq_printf(m, "CPU:\t\t%s\n", cpu);
++	seq_printf(m, "MMU:\t\t%s\n", mmu);
++	seq_printf(m, "FPU:\t\t%s\n", fpu);
++	seq_printf(m, "Arch:\t\t%hx\n", chipid >> 16);
++	seq_printf(m, "Rev:\t\t%hx\n", (chipid & 0xffff));
++
++	/*
++	 * Now compute the clock frequency in Mhz.
++	 */
++	clockfreq = processor_frequency();
++	seq_printf(m, "Clock Freq:\t%u.%1u MHz\n",
++		   clockfreq / 1000000,
++		   (clockfreq / 100000) % 10);
++	seq_printf(m, "BogoMips:\t%lu.%02lu\n",
++		   (loops_per_jiffy * HZ) / 500000,
++		   ((loops_per_jiffy * HZ) / 5000) % 100);
++	seq_printf(m, "Calibration:\t%lu loops\n", (loops_per_jiffy * HZ));
++}
++
++/*
++ * show_cpuinfo()
++ *	Get CPU information for use by the procfs.
++ */
++static int show_cpuinfo(struct seq_file *m, void *v)
++{
++	unsigned long n = (unsigned long)v - 1;
++
++#if defined(CONFIG_SMP)
++	struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, n);
++#endif
++
++	/*
++	 * Print the general processor information on the first
++	 * call.
++	 */
++	if (n == 0) {
++		show_processorinfo(m);
++	}
++
++#if defined(CONFIG_SMP)
++	/*
++	 * For each hwthread, print if this hwthread is running Linux
++	 * or is an I/O thread.
++	 */
++	if (cpu_isset(n, cpu_online_map)) {
++		seq_printf(m, "cpu[%02lu]:\tthread id - %lu\n", n, p->tid);
++	} else {
++		seq_printf(m, "cpu[%02lu]:\toff-line\n", n);
++	}
++#endif
++	return 0;
++
++}
++
++static void *c_start(struct seq_file *m, loff_t *pos)
++{
++	unsigned long i = *pos;
++
++	return i < NR_CPUS ? (void *)(i + 1) : NULL;
++}
++
++static void *c_next(struct seq_file *m, void *v, loff_t *pos)
++{
++	++*pos;
++	return c_start(m, pos);
++}
++
++static void c_stop(struct seq_file *m, void *v)
++{
++}
++
++const struct seq_operations cpuinfo_op = {
++	.start	= c_start,
++	.next	= c_next,
++	.stop	= c_stop,
++	.show	= show_cpuinfo,
++};
++
++/*
++ * processor_timers()
++ *	Returns the timers available to Linux.
++ */
++unsigned int processor_timers(void)
++{
++	if (!pn) {
++		return 0;
++	}
++	return pn->timers;
++}
++
++/*
++ * processor_threads()
++ *	Returns the threads available to Linux.
++ */
++unsigned int processor_threads(void)
++{
++	if (!pn) {
++		return 0;
++	}
++	return pn->threads;
++}
++
++/*
++ * processor_frequency()
++ *	Returns the frequency of the system clock.
++ */
++unsigned int processor_frequency(void)
++{
++	if (!pn) {
++		return 0;
++	}
++	return pn->frequency;
++}
++EXPORT_SYMBOL(processor_frequency);
++
++/*
++ * processor_interrupts()
++ *	Return the interrupts that are setup at boot time.
++ */
++int processor_interrupts(unsigned int *int0, unsigned int *int1)
++{
++	if (!pn) {
++		return -EFAULT;
++	}
++
++	if (int0) {
++		*int0 = pn->interrupt0;
++	}
++
++	if (int1) {
++		*int1 = pn->interrupt1;
++	}
++	return 0;
++}
++
++/*
++ * processor_ocm()
++ *	Returns the OCM available to Linux.
++ */
++int processor_ocm(void **socm, void **eocm)
++{
++	if (!pn) {
++		return -ENOSYS;
++	}
++
++	*socm = pn->socm;
++	*eocm = pn->eocm;
++	return 0;
++}
++
++/*
++ * processor_dram()
++ *	Returns the dram available to Linux.
++ */
++int processor_dram(void **sdram, void **edram)
++{
++	if (!pn) {
++		return -ENOSYS;
++	}
++
++	*sdram = pn->sdram;
++	*edram = pn->edram;
++	return 0;
++}
++
++void __init processor_init(void)
++{
++	/*
++	 * If we do not have a trap node in the device tree, we leave the fault
++	 * handling to the underlying hardware.
++	 */
++	pn = (struct procnode *)devtree_find_node("processor");
++	if (!pn) {
++		printk(KERN_WARNING "processor node not found\n");
++		return;
++	}
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/ptrace.c
+@@ -0,0 +1,275 @@
++/*
++ * arch/ubicom32/kernel/ptrace.c
++ *   Ubicom32 architecture ptrace implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (C) 1994 by Hamish Macdonald
++ * Taken from linux/kernel/ptrace.c and modified for M680x0.
++ * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/smp.h>
++#include <linux/errno.h>
++#include <linux/ptrace.h>
++#include <linux/user.h>
++#include <linux/signal.h>
++#include <linux/uaccess.h>
++
++#include <asm/page.h>
++#include <asm/pgtable.h>
++#include <asm/system.h>
++#include <asm/cacheflush.h>
++#include <asm/processor.h>
++
++/*
++ * ptrace_getregs()
++ *
++ *	Get all user integer registers.
++ */
++static inline int ptrace_getregs(struct task_struct *task, void __user *uregs)
++{
++	struct pt_regs *regs = task_pt_regs(task);
++	return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0;
++}
++
++/*
++ * ptrace_get_reg()
++ *
++ *	Get contents of register REGNO in task TASK.
++ */
++static unsigned long ptrace_get_reg(struct task_struct *task, int regno)
++{
++	if (regno < sizeof(struct pt_regs)) {
++		struct pt_regs *pt_regs = task_pt_regs(task);
++		return *(unsigned long *)((long) pt_regs + regno);
++	}
++
++	return -EIO;
++}
++
++/*
++ * ptrace_put_reg()
++ *	Write contents of register REGNO in task TASK.
++ */
++static int ptrace_put_reg(struct task_struct *task, int regno,
++			  unsigned long data)
++{
++	if (regno <= sizeof(struct pt_regs) && regno != PT_FRAME_TYPE) {
++		struct pt_regs *pt_regs = task_pt_regs(task);
++		*(unsigned long *)((long) pt_regs + regno) = data;
++		return 0;
++	}
++	return -EIO;
++}
++
++/*
++ * ptrace_disable_single_step()
++ *	Disable Single Step
++ */
++static int ptrace_disable_single_step(struct task_struct *task)
++{
++	/*
++	 * Single Step not yet implemented, so must always be disabled
++	 */
++	return 0;
++}
++
++/*
++ * ptrace_disable()
++ *	Make sure the single step bit is not set.
++ * Called by kernel/ptrace.c when detaching..
++ */
++void ptrace_disable(struct task_struct *child)
++{
++	ptrace_disable_single_step(child);
++}
++
++/*
++ * arch_ptrace()
++ *	architecture specific ptrace routine.
++ */
++long arch_ptrace(struct task_struct *child, long request, long addr, long data)
++{
++	int ret;
++	switch (request) {
++	/* when I and D space are separate, these will need to be fixed. */
++	case PTRACE_PEEKTEXT: /* read word at location addr. */
++	case PTRACE_PEEKDATA:
++		ret = generic_ptrace_peekdata(child, addr, data);
++		break;
++
++	/* read the word at location addr in the USER area. */
++	case PTRACE_PEEKUSR: {
++		unsigned long tmp;
++
++		ret = -EIO;
++		if (((unsigned long) addr > PT_INTERP_FDPIC_LOADMAP)
++		    || (addr & 3))
++			break;
++
++		tmp = 0;  /* Default return condition */
++
++		ret = -EIO;
++		if (addr < sizeof(struct pt_regs)) {
++			tmp = ptrace_get_reg(child, addr);
++		} else if (addr == PT_TEXT_ADDR) {
++			tmp = child->mm->start_code;
++		} else if (addr == PT_TEXT_END_ADDR) {
++			tmp = child->mm->end_code;
++		} else if (addr == PT_DATA_ADDR) {
++			tmp = child->mm->start_data;
++		} else if (addr == PT_EXEC_FDPIC_LOADMAP) {
++#ifdef CONFIG_BINFMT_ELF_FDPIC
++			tmp = child->mm->context.exec_fdpic_loadmap;
++#endif
++		} else if (addr == PT_INTERP_FDPIC_LOADMAP) {
++#ifdef CONFIG_BINFMT_ELF_FDPIC
++			tmp = child->mm->context.interp_fdpic_loadmap;
++#endif
++		} else {
++			break;
++		}
++
++		ret = put_user(tmp, (unsigned long *)data);
++		break;
++	}
++
++	case PTRACE_POKETEXT: /* write the word at location addr. */
++	case PTRACE_POKEDATA:
++		ret = generic_ptrace_pokedata(child, addr, data);
++
++		/*
++		 * If we just changed some code so we need to
++		 * correct the caches
++		 */
++		if (request == PTRACE_POKETEXT && ret == 0) {
++			flush_icache_range(addr, addr + 4);
++		}
++		break;
++
++	case PTRACE_POKEUSR: /* write the word at location addr
++			      * in the USER area */
++		ret = -EIO;
++
++		if (((unsigned long) addr > PT_DATA_ADDR) || (addr & 3))
++			break;
++
++		if (addr < sizeof(struct pt_regs)) {
++			ret = ptrace_put_reg(child, addr, data);
++		}
++		break;
++
++	case PTRACE_SYSCALL: /* continue and stop at next (return from)
++			      * syscall */
++	case PTRACE_CONT: { /* restart after signal. */
++
++		ret = -EIO;
++		if (!valid_signal(data))
++			break;
++		if (request == PTRACE_SYSCALL)
++			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
++		else
++			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
++		child->exit_code = data;
++		/* make sure the single step bit is not set. */
++		ptrace_disable_single_step(child);
++		wake_up_process(child);
++		ret = 0;
++		break;
++	}
++
++	/*
++	 * make the child exit.  Best I can do is send it a sigkill.
++	 * perhaps it should be put in the status that it wants to exit.
++	 */
++	case PTRACE_KILL: {
++		ret = 0;
++		if (child->exit_state == EXIT_ZOMBIE) /* already dead */
++			break;
++		child->exit_code = SIGKILL;
++		/* make sure the single step bit is not set. */
++		ptrace_disable_single_step(child);
++		wake_up_process(child);
++		break;
++	}
++
++	case PTRACE_DETACH:	/* detach a process that was attached. */
++		ret = ptrace_detach(child, data);
++		break;
++
++	case PTRACE_GETREGS:    /* Get all gp regs from the child. */
++		ptrace_getregs(child, (unsigned long *)data);
++		ret = 0;
++		break;
++
++	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
++		int i;
++		unsigned long tmp;
++		int count = sizeof(struct pt_regs) / sizeof(unsigned long);
++		for (i = 0; i < count; i++) {
++			if (get_user(tmp, (unsigned long *) data)) {
++				ret = -EFAULT;
++				break;
++			}
++			ptrace_put_reg(child, sizeof(unsigned long) * i, tmp);
++			data += sizeof(long);
++		}
++		ret = 0;
++		break;
++	}
++
++	default:
++		return ptrace_request(child, request, addr, data);
++		break;
++	}
++	return ret;
++}
++/*
++ * syscall_trace
++ *
++ * called by syscall enter/exit when the TIF_SYSCALL_TRACE bit is set.
++ */
++asmlinkage void syscall_trace(void)
++{
++	struct task_struct *cur = current;
++	if (!test_thread_flag(TIF_SYSCALL_TRACE))
++		return;
++	if (!(cur->ptrace & PT_PTRACED))
++		return;
++	ptrace_notify(SIGTRAP | ((cur->ptrace & PT_TRACESYSGOOD)
++				 ? 0x80 : 0));
++	/*
++	 * this isn't the same as continuing with a signal, but it will do
++	 * for normal use.  strace only continues with a signal if the
++	 * stopping signal is not SIGTRAP.  -brl
++	 */
++	if (cur->exit_code) {
++		send_sig(cur->exit_code, current, 1);
++		current->exit_code = 0;
++	}
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/semaphore.c
+@@ -0,0 +1,159 @@
++/*
++ * arch/ubicom32/kernel/semaphore.c
++ *   Ubicom32 architecture semaphore implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++/*
++ *  Generic semaphore code. Buyer beware. Do your own
++ * specific changes in <asm/semaphore-helper.h>
++ */
++
++#include <linux/sched.h>
++#include <linux/err.h>
++#include <linux/init.h>
++#include <asm/semaphore-helper.h>
++
++#ifndef CONFIG_RMW_INSNS
++spinlock_t semaphore_wake_lock;
++#endif
++
++/*
++ * Semaphores are implemented using a two-way counter:
++ * The "count" variable is decremented for each process
++ * that tries to sleep, while the "waking" variable is
++ * incremented when the "up()" code goes to wake up waiting
++ * processes.
++ *
++ * Notably, the inline "up()" and "down()" functions can
++ * efficiently test if they need to do any extra work (up
++ * needs to do something only if count was negative before
++ * the increment operation.
++ *
++ * waking_non_zero() (from asm/semaphore.h) must execute
++ * atomically.
++ *
++ * When __up() is called, the count was negative before
++ * incrementing it, and we need to wake up somebody.
++ *
++ * This routine adds one to the count of processes that need to
++ * wake up and exit.  ALL waiting processes actually wake up but
++ * only the one that gets to the "waking" field first will gate
++ * through and acquire the semaphore.  The others will go back
++ * to sleep.
++ *
++ * Note that these functions are only called when there is
++ * contention on the lock, and as such all this is the
++ * "non-critical" part of the whole semaphore business. The
++ * critical part is the inline stuff in <asm/semaphore.h>
++ * where we want to avoid any extra jumps and calls.
++ */
++void __up(struct semaphore *sem)
++{
++	wake_one_more(sem);
++	wake_up(&sem->wait);
++}
++
++/*
++ * Perform the "down" function.  Return zero for semaphore acquired,
++ * return negative for signalled out of the function.
++ *
++ * If called from __down, the return is ignored and the wait loop is
++ * not interruptible.  This means that a task waiting on a semaphore
++ * using "down()" cannot be killed until someone does an "up()" on
++ * the semaphore.
++ *
++ * If called from __down_interruptible, the return value gets checked
++ * upon return.  If the return value is negative then the task continues
++ * with the negative value in the return register (it can be tested by
++ * the caller).
++ *
++ * Either form may be used in conjunction with "up()".
++ *
++ */
++
++
++#define DOWN_HEAD(task_state)						\
++									\
++									\
++	current->state = (task_state);					\
++	add_wait_queue(&sem->wait, &wait);				\
++									\
++	/*								\
++	 * Ok, we're set up.  sem->count is known to be less than zero	\
++	 * so we must wait.						\
++	 *								\
++	 * We can let go the lock for purposes of waiting.		\
++	 * We re-acquire it after awaking so as to protect		\
++	 * all semaphore operations.					\
++	 *								\
++	 * If "up()" is called before we call waking_non_zero() then	\
++	 * we will catch it right away.  If it is called later then	\
++	 * we will have to go through a wakeup cycle to catch it.	\
++	 *								\
++	 * Multiple waiters contend for the semaphore lock to see	\
++	 * who gets to gate through and who has to wait some more.	\
++	 */								\
++	for (;;) {
++
++#define DOWN_TAIL(task_state)			\
++		current->state = (task_state);	\
++	}					\
++	current->state = TASK_RUNNING;		\
++	remove_wait_queue(&sem->wait, &wait);
++
++void __sched __down(struct semaphore *sem)
++{
++	DECLARE_WAITQUEUE(wait, current);
++
++	DOWN_HEAD(TASK_UNINTERRUPTIBLE)
++	if (waking_non_zero(sem))
++		break;
++	schedule();
++	DOWN_TAIL(TASK_UNINTERRUPTIBLE)
++}
++
++int __sched __down_interruptible(struct semaphore *sem)
++{
++	DECLARE_WAITQUEUE(wait, current);
++	int ret = 0;
++
++	DOWN_HEAD(TASK_INTERRUPTIBLE)
++
++	ret = waking_non_zero_interruptible(sem, current);
++	if (ret) {
++		if (ret == 1)
++			/* ret != 0 only if we get interrupted -arca */
++			ret = 0;
++		break;
++	}
++	schedule();
++	DOWN_TAIL(TASK_INTERRUPTIBLE)
++	return ret;
++}
++
++int __down_trylock(struct semaphore *sem)
++{
++	return waking_non_zero_trylock(sem);
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/setup.c
+@@ -0,0 +1,189 @@
++/*
++ * arch/ubicom32/kernel/setup.c
++ *   Ubicom32 architecture-dependent parts of system setup.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1999-2007  Greg Ungerer (gerg@snapgear.com)
++ * Copyright (C) 1998,1999  D. Jeff Dionne <jeff@uClinux.org>
++ * Copyleft  ()) 2000       James D. Schettine {james@telos-systems.com}
++ * Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
++ * Copyright (C) 1995       Hamish Macdonald
++ * Copyright (C) 2000       Lineo Inc. (www.lineo.com)
++ * Copyright (C) 2001	    Lineo, Inc. <www.lineo.com>
++ * 68VZ328 Fixes/support    Evan Stawnyczy <e@lineo.ca>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/delay.h>
++#include <linux/interrupt.h>
++#include <linux/fb.h>
++#include <linux/module.h>
++#include <linux/console.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/bootmem.h>
++#include <linux/seq_file.h>
++#include <linux/init.h>
++
++#include <asm/devtree.h>
++#include <asm/setup.h>
++#include <asm/irq.h>
++#include <asm/machdep.h>
++#include <asm/pgtable.h>
++#include <asm/pgalloc.h>
++#include <asm/ubicom32-common.h>
++#include <asm/processor.h>
++#include <asm/bootargs.h>
++#include <asm/thread.h>
++
++unsigned long memory_start;
++EXPORT_SYMBOL(memory_start);
++
++unsigned long memory_end;
++EXPORT_SYMBOL(memory_end);
++
++static char __initdata command_line[COMMAND_LINE_SIZE];
++#ifdef CONFIG_CMDLINE_BOOL
++static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
++#endif
++
++extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
++
++/*
++ * setup_arch()
++ *	Setup the architecture dependent portions of the system.
++ */
++void __init setup_arch(char **cmdline_p)
++{
++	int bootmap_size;
++
++	processor_init();
++	bootargs_init();
++
++	/*
++	 * TODO: The memory regions should really come from the
++	 * processor node.
++	 */
++	memory_start = PAGE_ALIGN(((unsigned long)&_end));
++	memory_end = CONFIG_RAMBASE+CONFIG_RAMSIZE;
++
++	init_mm.start_code = (unsigned long) &_stext;
++	init_mm.end_code = (unsigned long) &_etext;
++	init_mm.end_data = (unsigned long) &_edata;
++	init_mm.brk = (unsigned long) 0;
++
++	strlcpy(boot_command_line, bootargs_get_cmdline(), COMMAND_LINE_SIZE);
++
++#ifdef CONFIG_CMDLINE_BOOL
++#ifdef CONFIG_CMDLINE_OVERRIDE
++	strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
++#else
++	if (builtin_cmdline[0]) {
++		/* append boot loader cmdline to builtin */
++		strlcat(builtin_cmdline, " ", COMMAND_LINE_SIZE);
++		strlcat(builtin_cmdline, boot_command_line, COMMAND_LINE_SIZE);
++		strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
++	}
++#endif
++#endif
++
++	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
++	*cmdline_p = command_line;
++
++	parse_early_param();
++
++	printk(KERN_INFO "%s Processor, Ubicom, Inc. <www.ubicom.com>\n", CPU);
++
++#if defined(DEBUG)
++	printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x "
++		"BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext,
++		(int) &_sdata, (int) &_edata,
++		(int) &_sbss, (int) &_ebss);
++	printk(KERN_DEBUG "MEMORY -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x\n ",
++		(int) &_ebss, (int) memory_start,
++		(int) memory_start, (int) memory_end);
++#endif
++
++	/* Keep a copy of command line */
++	*cmdline_p = &command_line[0];
++	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
++	boot_command_line[COMMAND_LINE_SIZE-1] = 0;
++
++#ifdef DEBUG
++	if (strlen(*cmdline_p))
++		printk(KERN_DEBUG "Command line: '%s'\n", *cmdline_p);
++#endif
++
++#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
++	conswitchp = &dummy_con;
++#endif
++
++	/*
++	 * If we have a device tree, see if we have the nodes we need.
++	 */
++	if (devtree) {
++		devtree_print();
++	}
++
++	/*
++	 * From the arm initialization comment:
++	 *
++	 * This doesn't seem to be used by the Linux memory manager any
++	 * more, but is used by ll_rw_block.  If we can get rid of it, we
++	 * also get rid of some of the stuff above as well.
++	 *
++	 * Note: max_low_pfn and max_pfn reflect the number of _pages_ in
++	 * the system, not the maximum PFN.
++	 */
++	max_pfn = max_low_pfn = (memory_end - PAGE_OFFSET) >> PAGE_SHIFT;
++
++	/*
++	 * Give all the memory to the bootmap allocator, tell it to put the
++	 * boot mem_map at the start of memory.
++	 */
++	bootmap_size = init_bootmem_node(
++			NODE_DATA(0),
++			memory_start >> PAGE_SHIFT,	/* map goes here */
++			PAGE_OFFSET >> PAGE_SHIFT,	/* 0 on coldfire */
++			memory_end >> PAGE_SHIFT);
++	/*
++	 * Free the usable memory, we have to make sure we do not free
++	 * the bootmem bitmap so we then reserve it after freeing it :-)
++	 */
++	free_bootmem(memory_start, memory_end - memory_start);
++	reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
++
++	/*
++	 * Get kmalloc into gear.
++	 */
++	paging_init();
++
++	/*
++	 * Fix up the thread_info structure, indicate this is a mainline Linux
++	 * thread and setup the sw_ksp().
++	 */
++	sw_ksp[thread_get_self()] = (unsigned int) current_thread_info();
++	thread_set_mainline(thread_get_self());
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/signal.c
+@@ -0,0 +1,458 @@
++/*
++ * arch/ubicom32/kernel/signal.c
++ *   Ubicom32 architecture signal handling implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1991, 1992  Linus Torvalds
++ * Linux/m68k support by Hamish Macdonald
++ * 68060 fixes by Jesper Skov
++ * 1997-12-01  Modified for POSIX.1b signals by Andreas Schwab
++ * mathemu support by Roman Zippel
++ * ++roman (07/09/96): implemented signal stacks
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *
++ * mathemu support by Roman Zippel
++ *  (Note: fpstate in the signal context is completely ignored for the emulator
++ *         and the internal floating point format is put on stack)
++ *
++ * ++roman (07/09/96): implemented signal stacks (specially for tosemu on
++ * Atari :-) Current limitation: Only one sigstack can be active at one time.
++ * If a second signal with SA_ONSTACK set arrives while working on a sigstack,
++ * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested
++ * signal handlers!
++ */
++
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/kernel.h>
++#include <linux/signal.h>
++#include <linux/syscalls.h>
++#include <linux/errno.h>
++#include <linux/wait.h>
++#include <linux/ptrace.h>
++#include <linux/unistd.h>
++#include <linux/stddef.h>
++#include <linux/highuid.h>
++#include <linux/tty.h>
++#include <linux/personality.h>
++#include <linux/binfmts.h>
++
++#include <asm/setup.h>
++#include <asm/uaccess.h>
++#include <asm/pgtable.h>
++#include <asm/traps.h>
++#include <asm/ucontext.h>
++
++#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
++
++/*
++ * asm signal return handlers.
++ */
++void ret_from_user_signal(void);
++void ret_from_user_rt_signal(void);
++asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs);
++
++/*
++ * Common signal suspend implementation
++ */
++static int signal_suspend(sigset_t *saveset, struct pt_regs *regs)
++{
++	regs->dn[0] = -EINTR;
++	while (1) {
++		current->state = TASK_INTERRUPTIBLE;
++		schedule();
++		if (!do_signal(saveset, regs)) {
++			continue;
++		}
++		/*
++		 * If the current frame type is a signal trampoline we are
++		 * actually going to call the signal handler so we return the
++		 * desired d0 as the return value.
++		 */
++		if (regs->frame_type == UBICOM32_FRAME_TYPE_SIGTRAMP) {
++			return regs->dn[0];
++		}
++		return -EINTR;
++	}
++	/*
++	 * Should never get here
++	 */
++	BUG();
++	return 0;
++}
++
++/*
++ * Atomically swap in the new signal mask, and wait for a signal.
++ */
++asmlinkage int do_sigsuspend(struct pt_regs *regs)
++{
++	old_sigset_t mask = regs->dn[0];
++	sigset_t saveset;
++
++	mask &= _BLOCKABLE;
++	spin_lock_irq(&current->sighand->siglock);
++	saveset = current->blocked;
++	siginitset(&current->blocked, mask);
++	recalc_sigpending();
++	spin_unlock_irq(&current->sighand->siglock);
++
++	/*
++	 * Call common handler
++	 */
++	return signal_suspend(&saveset, regs);
++}
++
++asmlinkage int
++do_rt_sigsuspend(struct pt_regs *regs)
++{
++	sigset_t *unewset = (sigset_t *)regs->dn[0];
++	size_t sigsetsize = (size_t)regs->dn[1];
++	sigset_t saveset, newset;
++
++	/* XXX: Don't preclude handling different sized sigset_t's.  */
++	if (sigsetsize != sizeof(sigset_t))
++		return -EINVAL;
++
++	if (copy_from_user(&newset, unewset, sizeof(newset)))
++		return -EFAULT;
++	sigdelsetmask(&newset, ~_BLOCKABLE);
++
++	spin_lock_irq(&current->sighand->siglock);
++	saveset = current->blocked;
++	current->blocked = newset;
++	recalc_sigpending();
++	spin_unlock_irq(&current->sighand->siglock);
++
++	/*
++	 * Call common handler
++	 */
++	return signal_suspend(&saveset, regs);
++}
++
++asmlinkage int
++sys_sigaction(int sig, const struct old_sigaction *act,
++	      struct old_sigaction *oact)
++{
++	struct k_sigaction new_ka, old_ka;
++	int ret;
++
++	if (act) {
++		old_sigset_t mask;
++		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
++		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
++		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
++			return -EFAULT;
++		__get_user(new_ka.sa.sa_flags, &act->sa_flags);
++		__get_user(mask, &act->sa_mask);
++		siginitset(&new_ka.sa.sa_mask, mask);
++	}
++
++	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
++
++	if (!ret && oact) {
++		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
++		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
++		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
++			return -EFAULT;
++		__put_user(old_ka.sa.sa_flags, &oact->sa_flags);
++		__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
++	}
++
++	return ret;
++}
++
++asmlinkage int
++do_sys_sigaltstack(struct pt_regs *regs)
++{
++	const stack_t *uss = (stack_t *) regs->dn[0];
++	stack_t *uoss = (stack_t *)regs->dn[1];
++	return do_sigaltstack(uss, uoss, regs->an[7]);
++}
++
++/*
++ * fdpic_func_descriptor describes sa_handler when the application is FDPIC
++ */
++struct fdpic_func_descriptor {
++	unsigned long	text;
++	unsigned long	GOT;
++};
++
++/*
++ * rt_sigframe is stored on the user stack immediately before (above)
++ * the signal handlers stack.
++ */
++struct rt_sigframe
++{
++	unsigned long syscall_number;	/* This holds __NR_rt_sigreturn. */
++	unsigned long restore_all_regs; /* This field gets set to 1 if the frame
++					 * type is TRAP or INTERRUPT. */
++	siginfo_t *info;
++	struct ucontext uc;
++	int sig;
++	void *pretcode;
++};
++
++/*
++ * Do a signal return; undo the signal stack.
++ */
++asmlinkage int do_sigreturn(unsigned long __unused)
++{
++	BUG();
++	return 0;
++}
++
++asmlinkage int do_rt_sigreturn(struct pt_regs *regs)
++{
++	unsigned long usp = regs->an[7];
++	struct rt_sigframe *frame = (struct rt_sigframe *)(usp);
++	sigset_t set;
++
++	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
++		goto badframe;
++	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
++		goto badframe;
++
++	sigdelsetmask(&set, ~_BLOCKABLE);
++	spin_lock_irq(&current->sighand->siglock);
++	current->blocked = set;
++	recalc_sigpending();
++	spin_unlock_irq(&current->sighand->siglock);
++
++	if (copy_from_user(regs, &frame->uc.uc_mcontext, sizeof(struct pt_regs)))
++		goto badframe;
++	return regs->dn[0];
++
++badframe:
++	force_sig(SIGSEGV, current);
++	return 0;
++}
++
++static inline void *
++get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
++{
++	unsigned long usp;
++
++	/* Default to using normal stack.  */
++	usp = regs->an[7];
++
++	/* This is the X/Open sanctioned signal stack switching.  */
++	if (ka->sa.sa_flags & SA_ONSTACK) {
++		if (!sas_ss_flags(usp))
++			usp = current->sas_ss_sp + current->sas_ss_size;
++	}
++	return (void *)((usp - frame_size) & ~0x3);
++}
++
++/*
++ * signal_trampoline:  Defined in ubicom32_syscall.S
++ */
++asmlinkage void signal_trampoline(void)__attribute__((naked));
++
++static void setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
++			    sigset_t *set, struct pt_regs *regs)
++{
++	struct rt_sigframe *frame;
++	int err = 0;
++
++	frame = (struct rt_sigframe *) get_sigframe(ka, regs, sizeof(*frame));
++
++	/*
++	 * The 'err |=' have been may criticized as bad code style, but I
++	 * strongly suspect that we want this code to be fast.  So for
++	 * now it stays as is.
++	 */
++	err |= __put_user( (  (current_thread_info()->exec_domain)
++			   && (current_thread_info()->exec_domain->signal_invmap)
++			   && (sig < 32) )
++			   ? current_thread_info()->exec_domain->signal_invmap[sig]
++			   : sig, &frame->sig);
++	err |= __put_user(info, &frame->info);
++
++	/* Create the ucontext.  */
++	err |= __put_user(0, &frame->uc.uc_flags);
++	err |= __put_user(0, &frame->uc.uc_link);
++	err |= __put_user((void *)current->sas_ss_sp,
++			  &frame->uc.uc_stack.ss_sp);
++	err |= __put_user(sas_ss_flags(regs->an[7]),
++			  &frame->uc.uc_stack.ss_flags);
++	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
++	err |= __put_user(__NR_rt_sigreturn, &frame->syscall_number);
++	if ((regs->frame_type == UBICOM32_FRAME_TYPE_TRAP) ||
++	    (regs->frame_type == UBICOM32_FRAME_TYPE_INTERRUPT)) {
++		err |= __put_user(1, &frame->restore_all_regs);
++	} else {
++		err |= __put_user(0, &frame->restore_all_regs);
++	}
++	err |= copy_to_user (&frame->uc.uc_mcontext.sc_regs, regs, sizeof(struct pt_regs));
++	err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set));
++
++	if (err)
++		goto give_sigsegv;
++
++	/*
++	 * Set up registers for signal handler NOTE: Do not modify dn[14], it
++	 * contains the userspace tls pointer, so it important that it carries
++	 * over to the signal handler.
++	 */
++	regs->an[7] = (unsigned long)frame;
++	regs->pc = (unsigned long) signal_trampoline;
++	regs->an[5] = (unsigned long) signal_trampoline;
++	regs->dn[0] = sig;
++	regs->dn[1] = (unsigned long) frame->info;
++	regs->dn[2] = (unsigned int) &frame->uc;
++
++	/*
++	 * If this is FDPIC then the signal handler is actually a function
++	 * descriptor.
++	 */
++	if (current->personality & FDPIC_FUNCPTRS) {
++		struct fdpic_func_descriptor __user *funcptr =
++			(struct fdpic_func_descriptor *) ka->sa.sa_handler;
++		err |= __get_user(regs->dn[3], &funcptr->text);
++		err |= __get_user(regs->an[0], &funcptr->GOT);
++		if (err)
++			goto give_sigsegv;
++
++		/*
++		 * The funcdesc must be in a3 as this is required for the lazy
++		 * resolver in ld.so, if the application is not FDPIC a3 is not
++		 * used.
++		 */
++		regs->an[3] = (unsigned long) funcptr;
++
++	} else {
++		regs->dn[3] = (unsigned long)ka->sa.sa_handler;
++		regs->an[0] = 0;
++	}
++
++	regs->frame_type =  UBICOM32_FRAME_TYPE_SIGTRAMP;
++
++	return;
++
++give_sigsegv:
++	/* user space exception */
++	force_sigsegv(sig, current);
++}
++
++static inline void
++handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
++{
++	switch (regs->dn[0]) {
++	case -ERESTARTNOHAND:
++		if (!has_handler)
++			goto do_restart;
++		regs->dn[0] = -EINTR;
++		break;
++
++	case -ERESTARTSYS:
++		if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) {
++			regs->dn[0] = -EINTR;
++			break;
++		}
++	/* fallthrough */
++	case -ERESTARTNOINTR:
++	do_restart:
++		regs->dn[0] = regs->original_dn_0;
++		regs->pc -= 8;
++		regs->an[5] -= 8;
++		break;
++	}
++}
++
++/*
++ * OK, we're invoking a handler
++ */
++static void
++handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
++	      sigset_t *oldset, struct pt_regs *regs)
++{
++	/* are we from a system call? */
++	if (regs->frame_type == -1)
++		/* If so, check system call restarting.. */
++		handle_restart(regs, ka, 1);
++
++	/* set up the stack frame */
++	setup_rt_frame(sig, ka, info, oldset, regs);
++
++	if (ka->sa.sa_flags & SA_ONESHOT)
++		ka->sa.sa_handler = SIG_DFL;
++
++	spin_lock_irq(&current->sighand->siglock);
++	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
++	if (!(ka->sa.sa_flags & SA_NODEFER))
++		sigaddset(&current->blocked,sig);
++	recalc_sigpending();
++	spin_unlock_irq(&current->sighand->siglock);
++}
++
++/*
++ * Note that 'init' is a special process: it doesn't get signals it doesn't
++ * want to handle. Thus you cannot kill init even with a SIGKILL even by
++ * mistake.
++ */
++asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs)
++{
++	struct k_sigaction ka;
++	siginfo_t info;
++	int signr;
++
++	/*
++	 * We want the common case to go fast, which
++	 * is why we may in certain cases get here from
++	 * kernel mode. Just return without doing anything
++	 * if so.
++	 */
++	if (!user_mode(regs))
++		return 1;
++
++	if (!oldset)
++		oldset = &current->blocked;
++
++	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
++	if (signr > 0) {
++		/* Whee!  Actually deliver the signal.  */
++		handle_signal(signr, &ka, &info, oldset, regs);
++		return 1;
++	}
++
++	/* Did we come from a system call? */
++	if (regs->frame_type == -1) {
++		/* Restart the system call - no handlers present */
++		handle_restart(regs, NULL, 0);
++	}
++
++	return 0;
++}
++
++/*
++ * sys_sigreturn()
++ *	Return handler for signal clean-up.
++ *
++ * NOTE: Ubicom32 does not use this syscall.  Instead we rely
++ * on do_rt_sigreturn().
++ */
++asmlinkage long sys_sigreturn(void)
++{
++	return -ENOSYS;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/smp.c
+@@ -0,0 +1,808 @@
++/*
++ * arch/ubicom32/kernel/smp.c
++ *   SMP implementation for Ubicom32 processors.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
++ * Copyright (C) 1999 David Mosberger-Tang <davidm@hpl.hp.com>
++ * Copyright (C) 2001,2004 Grant Grundler <grundler@parisc-linux.org>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/spinlock.h>
++#include <linux/slab.h>
++
++#include <linux/kernel.h>
++#include <linux/bootmem.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/smp.h>
++#include <linux/kernel_stat.h>
++#include <linux/mm.h>
++#include <linux/err.h>
++#include <linux/delay.h>
++#include <linux/bitops.h>
++#include <linux/cpu.h>
++#include <linux/profile.h>
++#include <linux/delay.h>
++#include <linux/io.h>
++#include <linux/ptrace.h>
++#include <linux/unistd.h>
++#include <linux/irq.h>
++
++#include <asm/system.h>
++#include <asm/atomic.h>
++#include <asm/current.h>
++#include <asm/tlbflush.h>
++#include <asm/timex.h>
++#include <asm/cpu.h>
++#include <asm/irq.h>
++#include <asm/processor.h>
++#include <asm/thread.h>
++#include <asm/sections.h>
++#include <asm/ip5000.h>
++
++/*
++ * Mask the debug printout for IPI because they are too verbose
++ * for regular debugging.
++ */
++
++// #define DEBUG_SMP 1
++#if !defined(DEBUG_SMP)
++#define smp_debug(lvl, ...)
++#else
++static unsigned int smp_debug_lvl = 50;
++#define smp_debug(lvl, printargs...)		\
++	if (lvl >= smp_debug_lvl) {		\
++			printk(printargs);	\
++	}
++#endif
++
++#if !defined(DEBUG_SMP)
++#define DEBUG_ASSERT(cond)
++#else
++#define DEBUG_ASSERT(cond) \
++	if (!(cond)) { \
++		THREAD_STALL; \
++	}
++#endif
++
++/*
++ * List of IPI Commands (more than one can be set at a time).
++ */
++enum ipi_message_type {
++	IPI_NOP,
++	IPI_RESCHEDULE,
++	IPI_CALL_FUNC,
++	IPI_CALL_FUNC_SINGLE,
++	IPI_CPU_STOP,
++	IPI_CPU_TIMER,
++};
++
++/*
++ * These values are properly adjusted by smp_prepare_cpus() below.  They are
++ * required to be declared in the arch directory if CONFIG_SMP is set.
++ */
++cpumask_t cpu_online_map = CPU_MASK_NONE;  /* Bitmap of online CPUs */
++EXPORT_SYMBOL(cpu_online_map);
++
++cpumask_t cpu_possible_map = CPU_MASK_ALL; /* Bitmap of Present CPUs */
++EXPORT_SYMBOL(cpu_possible_map);
++
++/*
++ * We maintain a hardware thread oriented view of online threads
++ * and those involved or needing IPI.
++ */
++static unsigned long smp_online_threads = 0;
++static unsigned long smp_needs_ipi = 0;
++static unsigned long smp_inside_ipi = 0;
++static unsigned long smp_irq_affinity[NR_IRQS];
++
++/*
++ * What do we need to track on a per cpu/thread basis?
++ */
++DEFINE_PER_CPU(struct cpuinfo_ubicom32, cpu_data);
++
++/*
++ * Each thread cpuinfo IPI information is guarded by a lock
++ * that is kept local to this file.
++ */
++DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
++
++/*
++ * The IPI(s) are based on a software IRQ through the LDSR.
++ */
++unsigned int smp_ipi_irq;
++
++/*
++ * Define a spinlock so that only one cpu is able to modify the
++ * smp_needs_ipi and to set/clear the IRQ at a time.
++ */
++DEFINE_SPINLOCK(smp_ipi_lock);
++
++/*
++ * smp_halt_processor()
++ *	Halt this hardware thread.
++ */
++static void smp_halt_processor(void)
++{
++	int cpuid = thread_get_self();
++	cpu_clear(smp_processor_id(), cpu_online_map);
++	local_irq_disable();
++	printk(KERN_EMERG "cpu[%d] has halted. It is not OK to turn off power \
++		until all cpu's are off.\n", cpuid);
++	for (;;) {
++		thread_suspend();
++	}
++}
++
++/*
++ * ipi_interrupt()
++ *	Handle an Interprocessor Interrupt.
++ */
++static irqreturn_t ipi_interrupt(int irq, void *dev_id)
++{
++	int cpuid = smp_processor_id();
++	struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpuid);
++	unsigned long ops;
++
++	/*
++	 * Count this now; we may make a call that never returns.
++	 */
++	p->ipi_count++;
++
++	/*
++	 * We are about to process all ops.  If another cpu has stated
++	 * that we need an IPI, we will have already processed it.  By
++	 * clearing our smp_needs_ipi, and processing all ops,
++	 * we reduce the number of IPI interrupts.  However, this introduces
++	 * the possibility that smp_needs_ipi will be clear and the soft irq
++	 * will have gone off; so we need to make the get_affinity() path
++	 * tolerant of spurious interrupts.
++	 */
++	spin_lock(&smp_ipi_lock);
++	smp_needs_ipi &= ~p->tid;
++	spin_unlock(&smp_ipi_lock);
++
++	for (;;) {
++		/*
++		 * Read the set of IPI commands we should handle.
++		 */
++		spinlock_t *lock = &per_cpu(ipi_lock, cpuid);
++		spin_lock(lock);
++		ops = p->ipi_pending;
++		p->ipi_pending = 0;
++		spin_unlock(lock);
++
++		/*
++		 * If we have no IPI commands to execute, break out.
++		 */
++		if (!ops) {
++			break;
++		}
++
++		/*
++		 * Execute the set of commands in the ops word, one command
++		 * at a time in no particular order.  Strip of each command
++		 * as we execute it.
++		 */
++		while (ops) {
++			unsigned long which = ffz(~ops);
++			ops &= ~(1 << which);
++
++			BUG_ON(!irqs_disabled());
++			switch (which) {
++			case IPI_NOP:
++				smp_debug(100, KERN_INFO "cpu[%d]: "
++					  "IPI_NOP\n", cpuid);
++				break;
++
++			case IPI_RESCHEDULE:
++				/*
++				 * Reschedule callback.  Everything to be
++				 * done is done by the interrupt return path.
++				 */
++				smp_debug(200, KERN_INFO "cpu[%d]: "
++					  "IPI_RESCHEDULE\n", cpuid);
++				break;
++
++			case IPI_CALL_FUNC:
++				smp_debug(100, KERN_INFO "cpu[%d]: "
++					  "IPI_CALL_FUNC\n", cpuid);
++				generic_smp_call_function_interrupt();
++				break;
++
++			case IPI_CALL_FUNC_SINGLE:
++				smp_debug(100, KERN_INFO "cpu[%d]: "
++					  "IPI_CALL_FUNC_SINGLE\n", cpuid);
++				generic_smp_call_function_single_interrupt();
++				break;
++
++			case IPI_CPU_STOP:
++				smp_debug(100, KERN_INFO "cpu[%d]: "
++					  "IPI_CPU_STOP\n", cpuid);
++				smp_halt_processor();
++				break;
++
++#if !defined(CONFIG_LOCAL_TIMERS)
++			case IPI_CPU_TIMER:
++				smp_debug(100, KERN_INFO "cpu[%d]: "
++					  "IPI_CPU_TIMER\n", cpuid);
++#if defined(CONFIG_GENERIC_CLOCKEVENTS)
++				local_timer_interrupt();
++#else
++				update_process_times(user_mode(get_irq_regs()));
++				profile_tick(CPU_PROFILING);
++#endif
++#endif
++				break;
++
++			default:
++				printk(KERN_CRIT "cpu[%d]: "
++					  "Unknown IPI: %lu\n", cpuid, which);
++
++				return IRQ_NONE;
++			}
++
++			/*
++			 * Let in any pending interrupts
++			 */
++			BUG_ON(!irqs_disabled());
++			local_irq_enable();
++			local_irq_disable();
++		}
++	}
++	return IRQ_HANDLED;
++}
++
++/*
++ * ipi_send()
++ *	Send an Interprocessor Interrupt.
++ */
++static void ipi_send(int cpu, enum ipi_message_type op)
++{
++	struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpu);
++	spinlock_t *lock = &per_cpu(ipi_lock, cpu);
++	unsigned long flags;
++
++	/*
++	 * We protect the setting of the ipi_pending field and ensure
++	 * that the ipi delivery mechanism and interrupt are atomically
++	 * handled.
++	 */
++	spin_lock_irqsave(lock, flags);
++	p->ipi_pending |= 1 << op;
++	spin_unlock_irqrestore(lock, flags);
++
++	spin_lock_irqsave(&smp_ipi_lock, flags);
++	smp_needs_ipi |= (1 << p->tid);
++	ubicom32_set_interrupt(smp_ipi_irq);
++	spin_unlock_irqrestore(&smp_ipi_lock, flags);
++}
++
++/*
++ * ipi_send_mask
++ *	Send an IPI to each cpu in mask.
++ */
++static inline void ipi_send_mask(unsigned int op, cpumask_t mask)
++{
++	int cpu;
++	for_each_cpu_mask(cpu, mask) {
++		ipi_send(cpu, op);
++	}
++}
++
++/*
++ * ipi_send_allbutself()
++ *	Send an IPI to all threads but ourselves.
++ */
++static inline void ipi_send_allbutself(unsigned int op)
++{
++	int self = smp_processor_id();
++	cpumask_t result = cpu_online_map;
++	cpu_clear(self, result);
++	ipi_send_mask(op, result);
++}
++
++/*
++ * smp_enable_vector()
++ */
++static void smp_enable_vector(unsigned int irq)
++{
++	ubicom32_clear_interrupt(smp_ipi_irq);
++	ldsr_enable_vector(irq);
++}
++
++/*
++ * smp_disable_vector()
++ *	Disable the interrupt by clearing the appropriate bit in the
++ *	LDSR Mask Register.
++ */
++static void smp_disable_vector(unsigned int irq)
++{
++	ldsr_disable_vector(irq);
++}
++
++/*
++ * smp_mask_vector()
++ */
++static void smp_mask_vector(unsigned int irq)
++{
++	ldsr_mask_vector(irq);
++}
++
++/*
++ * smp_unmask_vector()
++ */
++static void smp_unmask_vector(unsigned int irq)
++{
++	ldsr_unmask_vector(irq);
++}
++
++/*
++ * smp_end_vector()
++ *	Called once an interrupt is completed (reset the LDSR mask).
++ */
++static void smp_end_vector(unsigned int irq)
++{
++	struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, smp_processor_id());
++	spin_lock(&smp_ipi_lock);
++	smp_inside_ipi &= ~(1 << p->tid);
++	if (smp_inside_ipi) {
++		spin_unlock(&smp_ipi_lock);
++		return;
++	}
++	spin_unlock(&smp_ipi_lock);
++	ldsr_unmask_vector(irq);
++}
++
++/*
++ * Special hanlder functions for SMP.
++ */
++static struct irq_chip ubicom32_smp_chip = {
++	.name		= "UbicoIPI",
++	.startup	= NULL,
++	.shutdown	= NULL,
++	.enable		= smp_enable_vector,
++	.disable	= smp_disable_vector,
++	.ack		= NULL,
++	.mask		= smp_mask_vector,
++	.unmask		= smp_unmask_vector,
++	.end		= smp_end_vector,
++};
++
++/*
++ * smp_reset_ipi()
++ *	None of these cpu(s) got their IPI, turn it back on.
++ *
++ * Note: This is called by the LDSR which is not a full
++ * Linux cpu.  Thus you must use the raw form of locks
++ * because lock debugging will not work on the partial
++ * cpu nature of the LDSR.
++ */
++void smp_reset_ipi(unsigned long mask)
++{
++	__raw_spin_lock(&smp_ipi_lock.raw_lock);
++	smp_needs_ipi |= mask;
++	smp_inside_ipi &= ~mask;
++	ubicom32_set_interrupt(smp_ipi_irq);
++	__raw_spin_unlock(&smp_ipi_lock.raw_lock);
++}
++
++/*
++ * smp_get_affinity()
++ *	Choose the thread affinity for this interrupt.
++ *
++ * Note: This is called by the LDSR which is not a full
++ * Linux cpu.  Thus you must use the raw form of locks
++ * because lock debugging will not work on the partial
++ * cpu nature of the LDSR.
++ */
++unsigned long smp_get_affinity(unsigned int irq, int *all)
++{
++	unsigned long mask = 0;
++
++	/*
++	 * Most IRQ(s) are delivered in a round robin fashion.
++	 */
++	if (irq != smp_ipi_irq) {
++		unsigned long result = smp_irq_affinity[irq] & smp_online_threads;
++		DEBUG_ASSERT(result);
++		*all = 0;
++		return result;
++	}
++
++	/*
++	 * This is an IPI request.  Return all cpu(s) scheduled for an IPI.
++	 * We also track those cpu(s) that are going to be "receiving" IPI this
++	 * round.  When all CPU(s) have called smp_end_vector(),
++	 * we will unmask the IPI interrupt.
++	 */
++	__raw_spin_lock(&smp_ipi_lock.raw_lock);
++	ubicom32_clear_interrupt(smp_ipi_irq);
++	if (smp_needs_ipi) {
++		mask = smp_needs_ipi;
++		smp_inside_ipi |= smp_needs_ipi;
++		smp_needs_ipi = 0;
++	}
++	__raw_spin_unlock(&smp_ipi_lock.raw_lock);
++	*all = 1;
++	return mask;
++}
++
++/*
++ *  smp_set_affinity()
++ *  	Set the affinity for this irq but store the value in tid(s).
++ */
++void smp_set_affinity(unsigned int irq, cpumask_t dest)
++{
++	int cpuid;
++	unsigned long *paffinity = &smp_irq_affinity[irq];
++
++	/*
++	 *  If none specified, all cpus are allowed.
++	 */
++	if (cpus_empty(dest)) {
++		*paffinity = 0xffffffff;
++		return;
++	}
++
++	/*
++	 * Make sure to clear the old value before setting up the
++	 * list.
++	 */
++	*paffinity = 0;
++	for_each_cpu_mask(cpuid, dest) {
++		struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpuid);
++		*paffinity |= (1 << p->tid);
++	}
++}
++
++/*
++ * smp_send_stop()
++ *	Send a stop request to all CPU but this one.
++ */
++void smp_send_stop(void)
++{
++	ipi_send_allbutself(IPI_CPU_STOP);
++}
++
++/*
++ * smp_send_timer_all()
++ *	Send all cpu(s) but this one, a request to update times.
++ */
++void smp_send_timer_all(void)
++{
++	ipi_send_allbutself(IPI_CPU_TIMER);
++}
++
++/*
++ * smp_timer_broadcast()
++ *	Use an IPI to broadcast a timer message
++ */
++void smp_timer_broadcast(cpumask_t mask)
++{
++	ipi_send_mask(IPI_CPU_TIMER, mask);
++}
++
++/*
++ * smp_send_reschedule()
++ *	Send a reschedule request to the specified cpu.
++ */
++void smp_send_reschedule(int cpu)
++{
++	ipi_send(cpu, IPI_RESCHEDULE);
++}
++
++/*
++ * arch_send_call_function_ipi()
++ *	Cause each cpu in the mask to call the generic function handler.
++ */
++void arch_send_call_function_ipi(cpumask_t mask)
++{
++	int cpu;
++	for_each_cpu_mask(cpu, mask) {
++		ipi_send(cpu, IPI_CALL_FUNC);
++	}
++}
++
++/*
++ * arch_send_call_function_single_ipi()
++ *	Cause the specified cpu to call the generic function handler.
++ */
++void arch_send_call_function_single_ipi(int cpu)
++{
++	ipi_send(cpu, IPI_CALL_FUNC_SINGLE);
++}
++
++/*
++ * smp_mainline_start()
++ *	Start a slave thread executing a mainline Linux context.
++ */
++static void __init smp_mainline_start(void *arg)
++{
++	int cpuid = smp_processor_id();
++	struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpuid);
++
++	BUG_ON(p->tid != thread_get_self());
++
++	/*
++	 * Well, support 2.4 linux scheme as well.
++	 */
++	if (cpu_test_and_set(cpuid, cpu_online_map)) {
++		printk(KERN_CRIT "cpu[%d]: already initialized!\n", cpuid);
++		smp_halt_processor();
++		return;
++	}
++
++	/*
++	 * Initialise the idle task for this CPU
++	 */
++	atomic_inc(&init_mm.mm_count);
++	current->active_mm = &init_mm;
++	if (current->mm) {
++		printk(KERN_CRIT "cpu[%d]: idle task already has memory "
++		       "management\n", cpuid);
++		smp_halt_processor();
++		return;
++	}
++
++	/*
++	 * TODO: X86 does this prior to calling notify, try to understand why?
++	 */
++	preempt_disable();
++
++#if defined(CONFIG_GENERIC_CLOCKEVENTS)
++	/*
++	 * Setup a local timer event so that this cpu will get timer interrupts
++	 */
++	if (local_timer_setup(cpuid) == -1) {
++		printk(KERN_CRIT "cpu[%d]: timer alloc failed\n", cpuid);
++		smp_halt_processor();
++		return;
++	}
++#endif
++
++	/*
++	 * Notify those interested that we are up and alive.  This must
++	 * be done before interrupts are enabled.  It must also be completed
++	 * before the bootstrap cpu returns from __cpu_up() (see comment
++	 * above cpu_set() of the cpu_online_map).
++	 */
++	notify_cpu_starting(cpuid);
++
++	/*
++	 * Indicate that this thread is now online and present.   Setting
++	 * cpu_online_map has the side effect of allowing the bootstrap
++	 * cpu to continue along; so anything that MUST be done prior to the
++	 * bootstrap cpu returning from __cpu_up() needs to go above here.
++	 */
++	cpu_set(cpuid, cpu_online_map);
++	cpu_set(cpuid, cpu_present_map);
++
++	/*
++	 * Maintain a thread mapping in addition to the cpu mapping.
++	 */
++	smp_online_threads |= (1 << p->tid);
++
++	/*
++	 * Enable interrupts for this thread.
++	 */
++	local_irq_enable();
++
++	/*
++	 * Enter the idle loop and wait for a timer to schedule some work.
++	 */
++	printk(KERN_INFO "cpu[%d]: entering cpu_idle()\n", cpuid);
++	cpu_idle();
++
++	/* Not Reached */
++}
++
++/*
++ * smp_cpus_done()
++ *	Called once the kernel_init() has brought up all cpu(s).
++ */
++void smp_cpus_done(unsigned int cpu_max)
++{
++	/* Do Nothing */
++}
++
++/*
++ * __cpu_up()
++ *	Called to startup a sepcific cpu.
++ */
++int __cpuinit __cpu_up(unsigned int cpu)
++{
++	struct task_struct *idle;
++	unsigned int *stack;
++	long timeout;
++	struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpu);
++
++	/*
++	 * Create an idle task for this CPU.
++	 */
++	idle = fork_idle(cpu);
++	if (IS_ERR(idle)) {
++		panic("cpu[%d]: fork failed\n", cpu);
++		return -ENOSYS;
++	}
++	task_thread_info(idle)->cpu = cpu;
++
++	/*
++	 * Setup the sw_ksp[] to point to this new task.
++	 */
++	sw_ksp[p->tid] = (unsigned int)idle->stack;
++	stack = (unsigned int *)(sw_ksp[p->tid] + PAGE_SIZE - 8);
++
++	/*
++	 * Cause the specified thread to execute our smp_mainline_start
++	 * function as a TYPE_NORMAL thread.
++	 */
++	printk(KERN_INFO "cpu[%d]: launching mainline Linux thread\n", cpu);
++	if (thread_start(p->tid, smp_mainline_start, (void *)NULL, stack,
++			 THREAD_TYPE_NORMAL) == -1) {
++		printk(KERN_WARNING "cpu[%d]: failed thread_start\n", cpu);
++		return -ENOSYS;
++	}
++
++	/*
++	 * Wait for the thread to start up.  The thread will set
++	 * the online bit when it is running.  Our caller execpts the
++	 * cpu to be online if we return 0.
++	 */
++	for (timeout = 0; timeout < 10000; timeout++) {
++		if (cpu_online(cpu)) {
++			break;
++		}
++
++		udelay(100);
++		barrier();
++		continue;
++	}
++
++	if (!cpu_online(cpu)) {
++		printk(KERN_CRIT "cpu[%d]: failed to live after %ld us\n",
++		       cpu, timeout * 100);
++		return -ENOSYS;
++	}
++
++	printk(KERN_INFO "cpu[%d]: came alive after %ld us\n",
++	       cpu, timeout * 100);
++	return 0;
++}
++
++/*
++ * Data used by setup_irq for the IPI.
++ */
++static struct irqaction ipi_irq = {
++	.name	 = "ipi",
++	.flags	 = IRQF_DISABLED | IRQF_PERCPU,
++	.handler = ipi_interrupt,
++};
++
++/*
++ * smp_prepare_cpus()
++ *	Mark threads that are available to Linux as possible cpus(s).
++ */
++void __init smp_prepare_cpus(unsigned int max_cpus)
++{
++	int i;
++
++	/*
++	 * We will need a software IRQ to send IPI(s).  We will use
++	 * a single software IRQ for all IPI(s).
++	 */
++	if (irq_soft_alloc(&smp_ipi_irq) < 0) {
++		panic("no software IRQ is available\n");
++		return;
++	}
++
++	/*
++	 * For the IPI interrupt, we want to use our own chip definition.
++	 * This allows us to define what happens in SMP IPI without affecting
++	 * the performance of the other interrupts.
++	 *
++	 * Next, Register the IPI interrupt function against the soft IRQ.
++	 */
++	set_irq_chip(smp_ipi_irq, &ubicom32_smp_chip);
++	setup_irq(smp_ipi_irq, &ipi_irq);
++
++	/*
++	 * We use the device tree node to determine how many
++	 * free cpus we will have (up to NR_CPUS) and we indicate
++	 * that those cpus are present.
++	 *
++	 * We need to do this very early in the SMP case
++	 * because the Linux init code uses the cpu_present_map.
++	 */
++	for_each_possible_cpu(i) {
++		thread_t tid;
++		struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, i);
++
++		/*
++		 *  Skip the bootstrap cpu
++		 */
++		if (i == 0) {
++			continue;
++		}
++
++		/*
++		 * If we have a free thread left in the mask,
++		 * indicate that the cpu is present.
++		 */
++		tid = thread_alloc();
++		if (tid == (thread_t)-1) {
++			break;
++		}
++
++		/*
++		 * Save the hardware thread id for this cpu.
++		 */
++		p->tid = tid;
++		cpu_set(i, cpu_present_map);
++		printk(KERN_INFO "cpu[%d]: added to cpu_present_map - tid: %d\n", i, tid);
++	}
++}
++
++/*
++ * smp_prepare_boot_cpu()
++ *	Copy the per_cpu data into the appropriate spot for the bootstrap cpu.
++ *
++ * The code in boot_cpu_init() has already set the boot cpu's
++ * state in the possible, present, and online maps.
++ */
++void __devinit smp_prepare_boot_cpu(void)
++{
++	struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, 0);
++
++	smp_online_threads |= (1 << p->tid);
++	printk(KERN_INFO "cpu[%d]: bootstrap CPU online - tid: %ld\n",
++			current_thread_info()->cpu, p->tid);
++}
++
++/*
++ * smp_setup_processor_id()
++ *	Set the current_thread_info() structure cpu value.
++ *
++ * We set the value to the true hardware thread value that we are running on.
++ * NOTE: this function overrides the weak alias function in main.c
++ */
++void __init smp_setup_processor_id(void)
++{
++	struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, 0);
++	current_thread_info()->cpu = 0;
++	p->tid = thread_get_self();
++}
++
++/*
++ * setup_profiling_timer()
++ *	Dummy function created to keep Oprofile happy in the SMP case.
++ */
++int setup_profiling_timer(unsigned int multiplier)
++{
++	return 0;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/stacktrace.c
+@@ -0,0 +1,243 @@
++/*
++ * arch/ubicom32/kernel/stacktrace.c
++ *   Ubicom32 architecture stack back trace implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/sched.h>
++#include <linux/stacktrace.h>
++#include <linux/module.h>
++#include <asm/stacktrace.h>
++#include <asm/thread.h>
++
++/*
++ * These symbols are filled in by the linker.
++ */
++extern unsigned long _stext;
++extern unsigned long _etext;
++
++extern unsigned long __ocm_text_run_begin;
++extern unsigned long __data_begin;
++
++/*
++ * stacktrace_iterate()
++ *	Walk the stack looking for call and calli instructions on an aligned
++ *	boundary.
++ *
++ * Trace must point to the top of the current stack frame.
++ */
++unsigned long stacktrace_iterate(unsigned long **trace,
++				 unsigned long stext,
++				 unsigned long etext,
++				 unsigned long ocm_stext,
++				 unsigned long ocm_etext,
++				 unsigned long sstack,
++				 unsigned long estack)
++{
++	unsigned int thread_trap_en, instruction;
++	unsigned long address;
++	unsigned int limit = 0;
++	unsigned long result = 0;
++	unsigned long *sp = *trace;
++
++	/*
++	 * Exclude the current thread from being monitored for traps.
++	 */
++	asm volatile(
++		"	thread_get_self_mask d15		\n\t"
++			/* save current trap status */
++		"	and.4	%0, MT_TRAP_EN, d15		\n\t"
++		"	not.4	d15, d15			\n\t"
++			/* disable trap */
++		"	and.4	MT_TRAP_EN, MT_TRAP_EN, d15	\n\t"
++		"	pipe_flush 0				\n\t"
++		: "=r" (thread_trap_en)
++		:
++		: "d15", "cc"
++	);
++
++	while (limit++ < 256) {
++		/*
++		 * See if we have a valid stack.
++		 */
++		if (!between((unsigned long)sp, sstack, estack)) {
++#ifdef TRAP_DEBUG_STACK_TRACE
++			printk(KERN_EMERG "stack address is out of range - "
++			       "sp: %x, sstack: %x, estack: %x\n",
++			       (unsigned int)sp, (unsigned int)sstack,
++			       (unsigned int)estack);
++#endif
++			result = 0;
++			*trace = 0;
++			break;
++		}
++
++		/*
++		 * Get the value off the stack and back up 4 bytes to what
++		 * should be the address of a call or calli.
++		 */
++		address = (*sp++) - 4;
++
++		/*
++		 * If the address is not within the text segment, skip this
++		 * value.
++		 */
++		if (!between(address, stext, etext) &&
++		    !between(address, ocm_stext, ocm_etext)) {
++#ifdef TRAP_DEBUG_STACK_TRACE
++			printk(KERN_EMERG "not a text address - "
++			       "address: %08x, stext: %08x, etext: %08x\n"
++			       "ocm_stext: %08x, ocm_etext: %08x\n",
++			       (unsigned int)address,
++			       (unsigned int)stext,
++			       (unsigned int)etext,
++			       (unsigned int)ocm_stext,
++			       (unsigned int)ocm_etext);
++#endif
++			continue;
++
++		}
++
++		/*
++		 * If the address is not on an aligned boundary it can not be a
++		 * return address.
++		 */
++		if (address & 0x3) {
++			continue;
++		}
++
++		/*
++		 * Read the probable instruction.
++		 */
++		instruction = *(unsigned int *)address;
++
++		/*
++		 * Is this a call instruction?
++		 */
++		if ((instruction & 0xF8000000) == (u32_t)(0x1B << 27)) {
++#ifdef TRAP_DEBUG_STACK_TRACE
++			printk(KERN_EMERG "call inst. result: %x, "
++			       "test: %x\n", (unsigned int)address,
++			       (unsigned int)instruction);
++#endif
++			*trace = sp;
++			result = address;
++			break;
++		}
++
++		/*
++		 * Is this a calli instruction?
++		 */
++		if ((instruction & 0xF8000000) == (u32_t)(0x1E << 27)) {
++#ifdef TRAP_DEBUG_STACK_TRACE
++			printk(KERN_EMERG "calli inst. result: %x, "
++			       "test: %x\n", (unsigned int)address,
++			       (unsigned int)instruction);
++#endif
++			*trace = sp;
++			result = address;
++			break;
++		}
++	}
++
++	/*
++	 * Restore the current thread to be monitored for traps.
++	 */
++	if (thread_trap_en) {
++		asm volatile(
++		"	thread_get_self_mask d15		\n\t"
++		"	or.4	MT_TRAP_EN, MT_TRAP_EN, d15	\n\t"
++			:
++			:
++			: "d15", "cc"
++		);
++	}
++	return result;
++}
++
++#ifdef CONFIG_STACKTRACE
++/*
++ * stacktrace_save_entries()
++ *	Save stack back trace information into the provided trace structure.
++ */
++void stacktrace_save_entries(struct task_struct *tsk,
++			     struct stack_trace *trace,
++			     unsigned long sp)
++{
++	unsigned long code_start = (unsigned long)&_stext;
++	unsigned long code_end = (unsigned long)&_etext;
++	unsigned long ocm_code_start = (unsigned long)&__ocm_text_run_begin;
++	unsigned long ocm_code_end = (unsigned long)&__data_begin;
++	unsigned long stack_end = (unsigned long)(tsk->stack + THREAD_SIZE - 8);
++	unsigned long stack = (unsigned long)sp;
++	unsigned int idx = 0;
++	unsigned long *handle;
++	int skip = trace->skip;
++
++	handle = (unsigned long *)stack;
++	while (idx < trace->max_entries) {
++		if (skip) {
++			skip--;
++			continue;
++		}
++		trace->entries[idx] = stacktrace_iterate(&handle,
++					code_start, code_end,
++					ocm_code_start, ocm_code_end,
++					(unsigned long)stack, stack_end);
++		if (trace->entries[idx] == 0) {
++			break;
++		}
++		idx++;
++	}
++}
++
++/*
++ * save_stack_trace()
++ *	Save the specified amount of the kernel stack trace information
++ *	for the current task.
++ */
++void save_stack_trace(struct stack_trace *trace)
++{
++	unsigned long sp = 0;
++	asm volatile (
++	"	move.4	%0, SP		\n\t"
++		: "=r" (sp)
++	);
++	stacktrace_save_entries(current, trace, sp);
++}
++EXPORT_SYMBOL_GPL(save_stack_trace);
++
++/*
++ * save_stack_trace_tsk()
++ *	Save the specified amount of the kernel stack trace information
++ *	for the specified task.
++ *
++ * Note: We assume the specified task is not currently running.
++ */
++void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
++{
++	stacktrace_save_entries(tsk, trace, tsk->thread.sp);
++}
++EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
++#endif /* CONFIG_STACKTRACE */
+--- /dev/null
++++ b/arch/ubicom32/kernel/syscalltable.S
+@@ -0,0 +1,377 @@
++/*
++ * arch/ubicom32/kernel/syscalltable.S
++ *	<TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++/*
++ *
++ *  Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com)
++ *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>, Kenneth Albanowski <kjahds@kjahds.com>,
++ *  Copyright (C) 2000  Lineo Inc. (www.lineo.com) 
++ *  Copyright (C) 1991, 1992  Linus Torvalds
++ */
++
++#include <linux/sys.h>
++#include <linux/linkage.h>
++#include <asm/unistd.h>
++
++.text
++ALIGN
++	.global sys_call_table
++sys_call_table:	
++	.long sys_ni_syscall	/* 0  -  old "setup()" system call*/
++	.long sys_exit
++	.long sys_fork
++	.long sys_read
++	.long sys_write
++	.long sys_open		/* 5 */
++	.long sys_close
++	.long sys_waitpid
++	.long sys_creat
++	.long sys_link
++	.long sys_unlink	/* 10 */
++	.long execve_intercept
++	.long sys_chdir
++	.long sys_time
++	.long sys_mknod
++	.long sys_chmod		/* 15 */
++	.long sys_chown16
++	.long sys_ni_syscall	/* old break syscall holder */
++	.long sys_stat
++	.long sys_lseek
++	.long sys_getpid	/* 20 */
++	.long sys_mount
++	.long sys_oldumount
++	.long sys_setuid16
++	.long sys_getuid16
++	.long sys_stime		/* 25 */
++	.long sys_ptrace
++	.long sys_alarm
++	.long sys_fstat
++	.long sys_pause
++	.long sys_utime		/* 30 */
++	.long sys_ni_syscall	/* old stty syscall holder */
++	.long sys_ni_syscall	/* old gtty syscall holder */
++	.long sys_access
++	.long sys_nice
++	.long sys_ni_syscall	/* 35 */ /* old ftime syscall holder */
++	.long sys_sync
++	.long sys_kill
++	.long sys_rename
++	.long sys_mkdir
++	.long sys_rmdir		/* 40 */
++	.long sys_dup
++	.long sys_pipe
++	.long sys_times
++	.long sys_ni_syscall	/* old prof syscall holder */
++	.long sys_brk		/* 45 */
++	.long sys_setgid16
++	.long sys_getgid16
++	.long sys_signal
++	.long sys_geteuid16
++	.long sys_getegid16	/* 50 */
++	.long sys_acct
++	.long sys_umount	/* recycled never used phys() */
++	.long sys_ni_syscall	/* old lock syscall holder */
++	.long sys_ioctl
++	.long sys_fcntl		/* 55 */
++	.long sys_ni_syscall	/* old mpx syscall holder */
++	.long sys_setpgid
++	.long sys_ni_syscall	/* old ulimit syscall holder */
++	.long sys_ni_syscall
++	.long sys_umask		/* 60 */
++	.long sys_chroot
++	.long sys_ustat
++	.long sys_dup2
++	.long sys_getppid
++	.long sys_getpgrp	/* 65 */
++	.long sys_setsid
++	.long sys_sigaction
++	.long sys_sgetmask
++	.long sys_ssetmask
++	.long sys_setreuid16	/* 70 */
++	.long sys_setregid16
++	.long sys_sigsuspend
++	.long sys_sigpending
++	.long sys_sethostname
++	.long sys_setrlimit	/* 75 */
++	.long sys_old_getrlimit
++	.long sys_getrusage
++	.long sys_gettimeofday
++	.long sys_settimeofday
++	.long sys_getgroups16	/* 80 */
++	.long sys_setgroups16
++	.long old_select
++	.long sys_symlink
++	.long sys_lstat
++	.long sys_readlink	/* 85 */
++	.long sys_uselib
++	.long sys_ni_syscall	/* _sys_swapon */
++	.long sys_reboot
++	.long sys_old_readdir
++	.long old_mmap		/* 90 */
++	.long sys_munmap
++	.long sys_truncate
++	.long sys_ftruncate
++	.long sys_fchmod
++	.long sys_fchown16	/* 95 */
++	.long sys_getpriority
++	.long sys_setpriority
++	.long sys_ni_syscall	/* old profil syscall holder */
++	.long sys_statfs
++	.long sys_fstatfs	/* 100 */
++	.long sys_ni_syscall	/* ioperm for i386 */
++	.long sys_socketcall
++	.long sys_syslog
++	.long sys_setitimer
++	.long sys_getitimer	/* 105 */
++	.long sys_newstat
++	.long sys_newlstat
++	.long sys_newfstat
++	.long sys_ni_syscall
++	.long sys_ni_syscall	/* iopl for i386 */ /* 110 */
++	.long sys_vhangup
++	.long sys_ni_syscall	/* obsolete idle() syscall */
++	.long sys_ni_syscall	/* vm86old for i386 */
++	.long sys_wait4
++	.long sys_ni_syscall	/* 115 */ /* _sys_swapoff */
++	.long sys_sysinfo
++	.long sys_ipc
++	.long sys_fsync
++	.long sys_sigreturn
++	.long clone_intercept	/* 120 */
++	.long sys_setdomainname
++	.long sys_newuname
++	.long sys_cacheflush	/* modify_ldt for i386 */
++	.long sys_adjtimex
++	.long sys_ni_syscall	/* 125 */ /* _sys_mprotect */
++	.long sys_sigprocmask
++	.long sys_ni_syscall	/* old "creat_module" */
++	.long sys_init_module
++	.long sys_delete_module
++	.long sys_ni_syscall	/* 130: old "get_kernel_syms" */
++	.long sys_quotactl
++	.long sys_getpgid
++	.long sys_fchdir
++	.long sys_bdflush
++	.long sys_sysfs		/* 135 */
++	.long sys_personality
++	.long sys_ni_syscall	/* for afs_syscall */
++	.long sys_setfsuid16
++	.long sys_setfsgid16
++	.long sys_llseek	/* 140 */
++	.long sys_getdents
++	.long sys_select
++	.long sys_flock
++	.long sys_ni_syscall	/* _sys_msync */
++	.long sys_readv		/* 145 */
++	.long sys_writev
++	.long sys_getsid
++	.long sys_fdatasync
++	.long sys_sysctl
++	.long sys_ni_syscall	/* 150 */ /* _sys_mlock */
++	.long sys_ni_syscall	/* _sys_munlock */
++	.long sys_ni_syscall	/* _sys_mlockall */
++	.long sys_ni_syscall	/* _sys_munlockall */
++	.long sys_sched_setparam
++	.long sys_sched_getparam /* 155 */
++	.long sys_sched_setscheduler
++	.long sys_sched_getscheduler
++	.long sys_sched_yield
++	.long sys_sched_get_priority_max
++	.long sys_sched_get_priority_min  /* 160 */
++	.long sys_sched_rr_get_interval
++	.long sys_nanosleep
++	.long sys_ni_syscall	/* _sys_mremap */
++	.long sys_setresuid16
++	.long sys_getresuid16	/* 165 */
++	.long sys_getpagesize	/* _sys_getpagesize */
++	.long sys_ni_syscall	/* old "query_module" */
++	.long sys_poll
++	.long sys_ni_syscall	/* _sys_nfsservctl */
++	.long sys_setresgid16	/* 170 */
++	.long sys_getresgid16
++	.long sys_prctl
++	.long sys_rt_sigreturn
++	.long sys_rt_sigaction
++	.long sys_rt_sigprocmask /* 175 */
++	.long sys_rt_sigpending
++	.long sys_rt_sigtimedwait
++	.long sys_rt_sigqueueinfo
++	.long sys_rt_sigsuspend
++	.long sys_pread64	/* 180 */
++	.long sys_pwrite64
++	.long sys_lchown16
++	.long sys_getcwd
++	.long sys_capget
++	.long sys_capset	/* 185 */
++	.long sys_sigaltstack
++	.long sys_sendfile
++	.long sys_ni_syscall	/* streams1 */
++	.long sys_ni_syscall	/* streams2 */
++	.long vfork_intercept		/* 190 */
++	.long sys_getrlimit
++	.long sys_mmap2
++	.long sys_truncate64
++	.long sys_ftruncate64
++	.long sys_stat64	/* 195 */
++	.long sys_lstat64
++	.long sys_fstat64
++	.long sys_chown
++	.long sys_getuid
++	.long sys_getgid	/* 200 */
++	.long sys_geteuid
++	.long sys_getegid
++	.long sys_setreuid
++	.long sys_setregid
++	.long sys_getgroups	/* 205 */
++	.long sys_setgroups
++	.long sys_fchown
++	.long sys_setresuid
++	.long sys_getresuid
++	.long sys_setresgid	/* 210 */
++	.long sys_getresgid
++	.long sys_lchown
++	.long sys_setuid
++	.long sys_setgid
++	.long sys_setfsuid	/* 215 */
++	.long sys_setfsgid
++	.long sys_pivot_root
++	.long sys_ni_syscall
++	.long sys_ni_syscall
++	.long sys_getdents64	/* 220 */
++	.long sys_gettid
++	.long sys_tkill
++	.long sys_setxattr
++	.long sys_lsetxattr
++	.long sys_fsetxattr	/* 225 */
++	.long sys_getxattr
++	.long sys_lgetxattr
++	.long sys_fgetxattr
++	.long sys_listxattr
++	.long sys_llistxattr	/* 230 */
++	.long sys_flistxattr
++	.long sys_removexattr
++	.long sys_lremovexattr
++	.long sys_fremovexattr
++	.long sys_futex		/* 235 */
++	.long sys_sendfile64
++	.long sys_ni_syscall	/* _sys_mincore */
++	.long sys_ni_syscall	/* _sys_madvise */
++	.long sys_fcntl64
++	.long sys_readahead	/* 240 */
++	.long sys_io_setup
++	.long sys_io_destroy
++	.long sys_io_getevents
++	.long sys_io_submit
++	.long sys_io_cancel	/* 245 */
++	.long sys_fadvise64
++	.long sys_exit_group
++	.long sys_lookup_dcookie
++	.long sys_epoll_create
++	.long sys_epoll_ctl	/* 250 */
++	.long sys_epoll_wait
++	.long sys_ni_syscall	/* _sys_remap_file_pages */
++	.long sys_set_tid_address
++	.long sys_timer_create
++	.long sys_timer_settime	/* 255 */
++	.long sys_timer_gettime
++	.long sys_timer_getoverrun
++	.long sys_timer_delete
++	.long sys_clock_settime
++	.long sys_clock_gettime	/* 260 */
++	.long sys_clock_getres
++	.long sys_clock_nanosleep
++	.long sys_statfs64
++	.long sys_fstatfs64
++	.long sys_tgkill	/* 265 */
++	.long sys_utimes
++	.long sys_fadvise64_64
++	.long sys_mbind	
++	.long sys_get_mempolicy
++	.long sys_set_mempolicy	/* 270 */
++	.long sys_mq_open
++	.long sys_mq_unlink
++	.long sys_mq_timedsend
++	.long sys_mq_timedreceive
++	.long sys_mq_notify	/* 275 */
++	.long sys_mq_getsetattr
++	.long sys_waitid
++	.long sys_ni_syscall	/* for _sys_vserver */
++	.long sys_add_key
++	.long sys_request_key	/* 280 */
++	.long sys_keyctl
++	.long sys_ioprio_set
++	.long sys_ioprio_get
++	.long sys_inotify_init
++	.long sys_inotify_add_watch	/* 285 */
++	.long sys_inotify_rm_watch
++	.long sys_migrate_pages
++	.long sys_openat
++	.long sys_mkdirat
++	.long sys_mknodat		/* 290 */
++	.long sys_fchownat
++	.long sys_futimesat
++	.long sys_fstatat64
++	.long sys_unlinkat
++	.long sys_renameat		/* 295 */
++	.long sys_linkat
++	.long sys_symlinkat
++	.long sys_readlinkat
++	.long sys_fchmodat
++	.long sys_faccessat		/* 300 */
++	.long sys_ni_syscall		/* Reserved for pselect6 */
++	.long sys_ni_syscall		/* Reserved for ppoll */
++	.long sys_unshare
++	.long sys_set_robust_list
++	.long sys_get_robust_list	/* 305 */
++	.long sys_splice
++	.long sys_sync_file_range
++	.long sys_tee
++	.long sys_vmsplice
++	.long sys_move_pages		/* 310 */
++	.long sys_sched_setaffinity
++	.long sys_sched_getaffinity
++	.long sys_kexec_load
++	.long sys_getcpu
++	.long sys_epoll_pwait		/* 315 */
++	.long sys_utimensat
++	.long sys_signalfd
++	.long sys_timerfd_create
++	.long sys_eventfd
++	.long sys_fallocate		/* 320 */
++	.long sys_timerfd_settime
++	.long sys_timerfd_gettime
++	.long sys_ni_syscall		/* sys_signalfd4 */
++	.long sys_ni_syscall		/* sys_eventfd2 */
++	.long sys_ni_syscall		/* sys_epoll_create1 */
++					/* 325 */
++	.long sys_ni_syscall		/* sys_dup3 */
++	.long sys_ni_syscall		/* sys_pipe2 */
++	.long sys_ni_syscall		/* sys_inotify_init1 */
++	.rept NR_syscalls-(.-sys_call_table)/4
++		.long sys_ni_syscall
++	.endr
++
+--- /dev/null
++++ b/arch/ubicom32/kernel/sys_ubicom32.c
+@@ -0,0 +1,237 @@
++/*
++ * arch/ubicom32/kernel/sys_ubicom32.c
++ *   Ubicom32 architecture system call support implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *
++ * This file contains various random system calls that
++ * have a non-standard calling sequence on the Linux/ubicom32
++ * platform.
++ */
++
++#include <linux/module.h>
++#include <linux/errno.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/smp.h>
++#include <linux/sem.h>
++#include <linux/msg.h>
++#include <linux/shm.h>
++#include <linux/stat.h>
++#include <linux/syscalls.h>
++#include <linux/mman.h>
++#include <linux/file.h>
++#include <linux/utsname.h>
++#include <linux/ipc.h>
++#include <linux/fs.h>
++#include <linux/uaccess.h>
++#include <linux/unistd.h>
++
++#include <asm/setup.h>
++#include <asm/traps.h>
++#include <asm/cacheflush.h>
++
++/* common code for old and new mmaps */
++static inline long do_mmap2(
++	unsigned long addr, unsigned long len,
++	unsigned long prot, unsigned long flags,
++	unsigned long fd, unsigned long pgoff)
++{
++	int error = -EBADF;
++	struct file *file = NULL;
++
++	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
++	if (!(flags & MAP_ANONYMOUS)) {
++		file = fget(fd);
++		if (!file)
++			goto out;
++	}
++
++	down_write(&current->mm->mmap_sem);
++	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
++	up_write(&current->mm->mmap_sem);
++
++	if (file)
++		fput(file);
++out:
++	return error;
++}
++
++asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
++	unsigned long prot, unsigned long flags,
++	unsigned long fd, unsigned long pgoff)
++{
++	return do_mmap2(addr, len, prot, flags, fd, pgoff);
++}
++
++/*
++ * Perform the select(nd, in, out, ex, tv) and mmap() system
++ * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to
++ * handle more than 4 system call parameters, so these system calls
++ * used a memory block for parameter passing..
++ */
++
++struct mmap_arg_struct {
++	unsigned long addr;
++	unsigned long len;
++	unsigned long prot;
++	unsigned long flags;
++	unsigned long fd;
++	unsigned long offset;
++};
++
++asmlinkage int old_mmap(struct mmap_arg_struct *arg)
++{
++	struct mmap_arg_struct a;
++	int error = -EFAULT;
++
++	if (copy_from_user(&a, arg, sizeof(a)))
++		goto out;
++
++	error = -EINVAL;
++	if (a.offset & ~PAGE_MASK)
++		goto out;
++
++	a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
++
++	error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd,
++			 a.offset >> PAGE_SHIFT);
++out:
++	return error;
++}
++
++struct sel_arg_struct {
++	unsigned long n;
++	fd_set *inp, *outp, *exp;
++	struct timeval *tvp;
++};
++
++asmlinkage int old_select(struct sel_arg_struct *arg)
++{
++	struct sel_arg_struct a;
++
++	if (copy_from_user(&a, arg, sizeof(a)))
++		return -EFAULT;
++	/* sys_select() does the appropriate kernel locking */
++	return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
++}
++
++/*
++ * sys_ipc() is the de-multiplexer for the SysV IPC calls..
++ *
++ * This is really horribly ugly.
++ */
++asmlinkage int sys_ipc(uint call, int first, int second,
++			int third, void *ptr, long fifth)
++{
++	int version, ret;
++
++	version = call >> 16; /* hack for backward compatibility */
++	call &= 0xffff;
++
++	if (call <= SEMCTL)
++		switch (call) {
++		case SEMOP:
++			return sys_semop(first, (struct sembuf *)ptr, second);
++		case SEMGET:
++			return sys_semget(first, second, third);
++		case SEMCTL: {
++			union semun fourth;
++			if (!ptr)
++				return -EINVAL;
++			if (get_user(fourth.__pad, (void **) ptr))
++				return -EFAULT;
++			return sys_semctl(first, second, third, fourth);
++			}
++		default:
++			return -EINVAL;
++		}
++	if (call <= MSGCTL)
++		switch (call) {
++		case MSGSND:
++			return sys_msgsnd(first, (struct msgbuf *) ptr,
++					  second, third);
++		case MSGRCV:
++			switch (version) {
++			case 0: {
++				struct ipc_kludge tmp;
++				if (!ptr)
++					return -EINVAL;
++				if (copy_from_user(&tmp,
++						   (struct ipc_kludge *)ptr,
++						   sizeof(tmp)))
++					return -EFAULT;
++				return sys_msgrcv(first, tmp.msgp, second,
++						   tmp.msgtyp, third);
++				}
++			default:
++				return sys_msgrcv(first,
++						  (struct msgbuf *) ptr,
++						  second, fifth, third);
++			}
++		case MSGGET:
++			return sys_msgget((key_t) first, second);
++		case MSGCTL:
++			return sys_msgctl(first, second,
++					   (struct msqid_ds *) ptr);
++		default:
++			return -EINVAL;
++		}
++	if (call <= SHMCTL)
++		switch (call) {
++		case SHMAT:
++			switch (version) {
++			default: {
++				ulong raddr;
++				ret = do_shmat(first, ptr, second, &raddr);
++				if (ret)
++					return ret;
++				return put_user(raddr, (ulong __user *) third);
++			}
++			}
++		case SHMDT:
++			return sys_shmdt(ptr);
++		case SHMGET:
++			return sys_shmget(first, second, third);
++		case SHMCTL:
++			return sys_shmctl(first, second, ptr);
++		default:
++			return -ENOSYS;
++		}
++
++	return -EINVAL;
++}
++
++/* sys_cacheflush -- flush (part of) the processor cache.  */
++asmlinkage int
++sys_cacheflush(unsigned long addr, int scope, int cache, unsigned long len)
++{
++	flush_cache_all();
++	return 0;
++}
++
++asmlinkage int sys_getpagesize(void)
++{
++	return PAGE_SIZE;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/thread.c
+@@ -0,0 +1,228 @@
++/*
++ * arch/ubicom32/kernel/thread.c
++ *   Ubicom32 architecture hardware thread support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/sched.h>
++#include <linux/interrupt.h>
++#include <linux/irq.h>
++#include <linux/profile.h>
++#include <linux/clocksource.h>
++#include <linux/types.h>
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++#include <asm/asm-offsets.h>
++#include <asm/thread.h>
++
++/*
++ * TODO: At some point change the name here to be thread_ksp
++ */
++unsigned int sw_ksp[THREAD_ARCHITECTURAL_MAX];
++
++static unsigned int thread_mask = -1;
++static unsigned int thread_mainline_mask;
++
++/*
++ * thread_entry()
++ *	Returning from the called function will disable the thread.
++ *
++ * This could be a naked call to allow for hwthreads that do not have stacks.
++ * However, with -O0, the code still writes to thex stack, and this was
++ * corrupting memory just after the callers stack.
++ */
++static void thread_entry(void *arg, thread_exec_fn_t exec)
++{
++	/*
++	 * Call thread function
++	 */
++	exec(arg);
++
++	/*
++	 * Complete => Disable self
++	 */
++	thread_disable(thread_get_self());
++}
++
++/*
++ * thread_start()
++ *	Start the specified function on the specified hardware thread.
++ */
++thread_t thread_start(thread_t thread,
++		      thread_exec_fn_t exec,
++		      void *arg,
++		      unsigned int *sp_high,
++		      thread_type_t type)
++{
++	/*
++	 * Sanity check
++	 */
++	unsigned int enabled, mask, csr;
++	asm volatile (
++		"move.4		%0, MT_EN\n\t"
++		: "=m" (enabled)
++	);
++
++	mask = 1 << thread;
++	if (enabled & mask) {
++		printk(KERN_WARNING "request to enable a previously enabled thread\n");
++		return (thread_t)-1;
++	}
++
++	/*
++	 * Update thread state
++	 */
++	csr = (thread << 15) | (1 << 14);
++	asm volatile (
++		"setcsr		%0		\n\t"
++		"setcsr_flush	0		\n\t"
++
++		"move.4		A0, #0		\n\t"
++		"move.4		A1, #0		\n\t"
++		"move.4		A2, #0		\n\t"
++		"move.4		A3, #0		\n\t"
++		"move.4		A4, #0		\n\t"
++		"move.4		A5, #0		\n\t"
++		"move.4		A6, #0		\n\t"
++		"move.4		SP, %4		\n\t"	/* A7 is SP */
++
++		"move.4		D0, %3		\n\t"
++		"move.4		D1, %2		\n\t"
++		"move.4		D2, #0		\n\t"
++		"move.4		D3, #0		\n\t"
++		"move.4		D4, #0		\n\t"
++		"move.4		D5, #0		\n\t"
++		"move.4		D6, #0		\n\t"
++		"move.4		D7, #0		\n\t"
++		"move.4		D8, #0		\n\t"
++		"move.4		D9, #0		\n\t"
++		"move.4		D10, #0		\n\t"
++		"move.4		D11, #0		\n\t"
++		"move.4		D12, #0		\n\t"
++		"move.4		D13, #0		\n\t"
++		"move.4		D14, #0		\n\t"
++		"move.4		D15, #0		\n\t"
++
++		"move.4		INT_MASK0, #0	\n\t"
++		"move.4		INT_MASK1, #0	\n\t"
++		"move.4		PC, %1		\n\t"
++		"setcsr		#0		\n\t"
++		"setcsr_flush	0		\n\t"
++		:
++		: "r" (csr), "r" (thread_entry), "r" (exec),
++		  "r" (arg), "r" (sp_high)
++	);
++
++	/*
++	 * Apply HRT state
++	 */
++	if (type & THREAD_TYPE_HRT) {
++		asm volatile (
++			"or.4		MT_HRT, MT_HRT, %0\n\t"
++			:
++			: "d" (mask)
++			: "cc"
++		);
++	} else {
++		asm volatile (
++			"and.4		MT_HRT, MT_HRT, %0\n\t"
++			:
++			: "d" (~mask)
++			: "cc"
++		);
++	}
++
++	/*
++	 * Set priority
++	 */
++	asm volatile (
++		"or.4		MT_HPRI, MT_HPRI, %0\n\t"
++		:
++		: "d" (mask)
++		: "cc"
++	);
++
++	/*
++	 * Enable thread
++	 */
++	asm volatile (
++		"move.4		MT_ACTIVE_SET, %0	\n\t"
++		:
++		: "d" (mask)
++	);
++	thread_enable_mask(mask);
++	return thread;
++}
++
++/*
++ * thread_get_mainline()
++ *	Return a mask of those threads that are Linux mainline threads.
++ */
++unsigned int thread_get_mainline(void)
++{
++	return thread_mainline_mask;
++}
++
++/*
++ * thread_set_mainline()
++ *	Indicate that the specified thread is a Linux mainline thread.
++ */
++void thread_set_mainline(thread_t tid)
++{
++	thread_mainline_mask |= (1 << tid);
++}
++
++/*
++ * thread_alloc()
++ *	Allocate an unused hardware thread.
++ */
++thread_t thread_alloc(void)
++{
++	thread_t tid;
++
++	/*
++	 * If this is the first time we are here get the list of unused
++	 * threads from the processor device tree node.
++	 */
++	if (thread_mask == -1) {
++		thread_mask = processor_threads();
++	}
++
++	if (!thread_mask) {
++		return (thread_t)-1;
++	}
++
++	tid = ffs(thread_mask);
++	if (tid != 0) {
++		tid--;
++		thread_mask &= ~(1 << tid);
++		return tid;
++	}
++
++	return (thread_t)-1;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/time.c
+@@ -0,0 +1,212 @@
++/*
++ * arch/ubicom32/kernel/time.c
++ *	Initialize the timer list and start the appropriate timers.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1991, 1992, 1995  Linus Torvalds
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/profile.h>
++#include <linux/smp.h>
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++
++/*
++ * A bitmap of the timers on the processor indicates
++ * that the timer is free or in-use.
++ */
++static unsigned int timers;
++
++/*
++ * timer_set()
++ *	Init the specified compare register to go off <n> cycles from now.
++ */
++void timer_set(int timervector, unsigned int cycles)
++{
++	int idx = UBICOM32_VECTOR_TO_TIMER_INDEX(timervector);
++	UBICOM32_IO_TIMER->syscom[idx] =
++			UBICOM32_IO_TIMER->sysval + cycles;
++	ldsr_enable_vector(timervector);
++}
++
++/*
++ * timer_reset()
++ *	Set/reset the timer to go off again.
++ *
++ * Because sysval is a continuous timer, this function is able
++ * to ensure that we do not have clock sku by using the previous
++ * value in syscom to set the next value for syscom.
++ *
++ * Returns the number of ticks that transpired since the last event.
++ */
++int timer_reset(int timervector, unsigned int cycles)
++{
++	/*
++	 * Reset the timer in the LDSR thread to go off appropriately.
++	 *
++	 * Use the previous value of the timer to calculate the new stop
++	 * time.  This allows us to account for it taking an
++	 * indeterminate amount of time to get here.
++	 */
++	const int timer_index = UBICOM32_VECTOR_TO_TIMER_INDEX(timervector);
++	unsigned int prev = UBICOM32_IO_TIMER->syscom[timer_index];
++	unsigned int next = prev + cycles;
++	int scratchpad3;
++	int diff;
++	int ticks = 1;
++
++	/*
++	 * If the difference is negative, we have missed at least one
++	 * timer tick.
++	 *
++	 * TODO: Decide if we want to "ignore" time (as done below) or
++	 * if we want to process time (unevenly) by calling timer_tick()
++	 * lost_ticks times.
++	 */
++	while (1) {
++		/*
++		 * Set our future time first.
++		 */
++		UBICOM32_IO_TIMER->syscom[timer_index] = next;
++
++		/*
++		 * Then check if we are really set time in the futrue.
++		 */
++		diff = (int)next - (int)UBICOM32_IO_TIMER->sysval;
++		if (diff >= 0) {
++			break;
++		}
++
++		/*
++		 * Oops, we are too slow. Playing catch up.
++		 *
++		 * If the debugger is connected the there is a good
++		 * chance that we lost time because we were in a
++		 * break-point, so in this case we do not print out
++		 * diagnostics.
++		 */
++		asm volatile ("move.4 %0, scratchpad3"
++			      : "=r" (scratchpad3));
++		if ((scratchpad3 & 0x1) == 0) {
++			/*
++			 * No debugger attached, print to the console
++			 */
++			printk(KERN_EMERG "diff: %d, timer has lost %u "
++			       "ticks [rounded up]\n",
++			       -diff,
++			       (unsigned int)((-diff + cycles - 1) / cycles));
++		}
++
++		do {
++			next += cycles;
++			diff = (int)next - (int)UBICOM32_IO_TIMER->sysval;
++			ticks++;
++		} while (diff < 0);
++	}
++	return ticks;
++}
++
++/*
++ * sched_clock()
++ *	Returns current time in nano-second units.
++ *
++ * Notes:
++ * 1) This is an override for the weak alias in
++ * kernel/sched_clock.c.
++ * 2) Do not use xtime_lock as this function is
++ * sometimes called with xtime_lock held.
++ * 3) We use a retry algorithm to ensure that
++ * we get a consistent value.
++ * 4) sched_clock must be overwritten if IRQ tracing
++ * is enabled because the default implementation uses
++ * the xtime_lock sequence while holding xtime_lock.
++ */
++unsigned long long sched_clock(void)
++{
++	unsigned long long my_jiffies;
++	unsigned long jiffies_top;
++	unsigned long jiffies_bottom;
++
++	do {
++		jiffies_top = jiffies_64 >> 32;
++		jiffies_bottom = jiffies_64 & 0xffffffff;
++	} while (unlikely(jiffies_top != (unsigned long)(jiffies_64 >> 32)));
++
++	my_jiffies = ((unsigned long long)jiffies_top << 32) | (jiffies_bottom);
++	return (my_jiffies - INITIAL_JIFFIES) * (NSEC_PER_SEC / HZ);
++}
++
++/*
++ * timer_free()
++ *	Free a hardware timer.
++ */
++void timer_free(int interrupt)
++{
++	unsigned int bit = interrupt - TIMER_INT(0);
++
++	/*
++	 * The timer had not been allocated.
++	 */
++	BUG_ON(timers & (1 << bit));
++	timers |= (1 << bit);
++}
++
++/*
++ * timer_alloc()
++ *	Allocate a hardware timer.
++ */
++int timer_alloc(void)
++{
++	unsigned int bit = find_first_bit((unsigned long *)&timers, 32);
++	if (!bit) {
++		printk(KERN_WARNING "no more free timers\n");
++		return -1;
++	}
++
++	timers &= ~(1 << bit);
++	return bit + TIMER_INT(0);
++}
++
++/*
++ * time_init()
++ *	Time init function.
++ */
++void time_init(void)
++{
++	/*
++	 * Find the processor node and determine what timers are
++	 * available for us.
++	 */
++	timers = processor_timers();
++	if (timers == 0) {
++		printk(KERN_WARNING "no timers are available for Linux\n");
++		return;
++	}
++
++#ifdef CONFIG_GENERIC_CLOCKEVENTS
++	timer_device_init();
++#else
++	timer_tick_init();
++#endif
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/timer_broadcast.c
+@@ -0,0 +1,102 @@
++/*
++ * arch/ubicom32/kernel/timer_broadcast.c
++ *   Implements a dummy clock event for each cpu.
++ *
++ * Copyright (C) 2008  Paul Mundt
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *   arch/arm
++ *   arch/sh
++ */
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/delay.h>
++#include <linux/device.h>
++#include <linux/smp.h>
++#include <linux/jiffies.h>
++#include <linux/percpu.h>
++#include <linux/clockchips.h>
++#include <linux/irq.h>
++
++static DEFINE_PER_CPU(struct clock_event_device, local_clockevent);
++
++/*
++ *  The broadcast trick only works when the timer will be used in a periodic mode.
++ *  If the user has configured either NO_HZ or HIGH_RES_TIMERS they must have
++ *  a per cpu timer.
++ */
++#if defined(CONFIG_NO_HZ) || defined(CONFIG_HIGH_RES_TIMERS)
++#error "Tickless and High Resolution Timers require per-CPU local timers: CONFIG_LOCAL_TIMERS"
++#endif
++
++/*
++ * local_timer_interrupt()
++ *	Used on SMP for local timer interrupt sent via an IPI.
++ */
++void local_timer_interrupt(void)
++{
++	struct clock_event_device *dev = &__get_cpu_var(local_clockevent);
++
++	dev->event_handler(dev);
++}
++
++/*
++ * dummy_timer_set_next_event()
++ *	Cause the timer to go off "cycles" from now.
++ */
++static int dummy_timer_set_next_event(unsigned long cycles, struct clock_event_device *dev)
++{
++	return 0;
++}
++
++/*
++ * dummy_timer_set_mode()
++ *	Do Nothing.
++ */
++static void dummy_timer_set_mode(enum clock_event_mode mode,
++				 struct clock_event_device *clk)
++{
++}
++
++/*
++ * local_timer_setup()
++ *	Adds a clock event for the specified cpu.
++ */
++int __cpuinit local_timer_setup(unsigned int cpu)
++{
++	struct clock_event_device *dev = &per_cpu(local_clockevent, cpu);
++
++	dev->name		= "timer-dummy";
++	dev->features		= CLOCK_EVT_FEAT_DUMMY;
++	dev->rating		= 200;
++	dev->mult		= 1;
++	dev->set_mode		= dummy_timer_set_mode;
++	dev->set_next_event	= dummy_timer_set_next_event;
++	dev->broadcast		= smp_timer_broadcast;
++	dev->cpumask		= cpumask_of_cpu(cpu);
++	dev->irq		= -1;
++	printk(KERN_NOTICE "timer[%d]: %s - created\n", dev->irq, dev->name);
++
++	clockevents_register_device(dev);
++	return 0;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/timer_device.c
+@@ -0,0 +1,302 @@
++/*
++ * arch/ubicom32/kernel/timer_device.c
++ *   Implements a Ubicom32 clock device and event devices.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/types.h>
++#include <linux/clockchips.h>
++#include <linux/clocksource.h>
++#include <linux/spinlock.h>
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++
++#if defined(CONFIG_SMP)
++#include <asm/smp.h>
++#endif
++
++#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
++#define MAX_TIMERS (2 + CONFIG_TIMER_EXTRA_ALLOC)
++#else
++#define MAX_TIMERS (NR_CPUS + CONFIG_TIMER_EXTRA_ALLOC)
++#endif
++
++#if (MAX_TIMERS > 10)
++#error "Ubicom32 only has 10 timers"
++#endif
++
++static unsigned int frequency;
++static struct clock_event_device timer_device_devs[MAX_TIMERS];
++static struct irqaction timer_device_irqs[MAX_TIMERS];
++static int timer_device_next_timer = 0;
++
++DEFINE_SPINLOCK(timer_device_lock);
++
++/*
++ * timer_device_set_next_event()
++ *	Cause the timer to go off "cycles" from now.
++ */
++static int timer_device_set_next_event(unsigned long cycles, struct clock_event_device *dev)
++{
++	timer_set(dev->irq, cycles);
++	return 0;
++}
++
++/*
++ * timer_device_set_mode()
++ *	Handle the mode switch for a clock event device.
++ */
++static void timer_device_set_mode(enum clock_event_mode mode, struct clock_event_device *dev)
++{
++	switch (mode) {
++	case CLOCK_EVT_MODE_SHUTDOWN:
++		/*
++		 * Make sure the vector is disabled
++		 * until the next event is set.
++		 */
++		printk(KERN_NOTICE "timer[%d]: shutdown\n", dev->irq);
++		ldsr_disable_vector(dev->irq);
++		break;
++
++	case CLOCK_EVT_MODE_ONESHOT:
++		/*
++		 * Make sure the vector is disabled
++		 * until the next event is set.
++		 */
++		printk(KERN_NOTICE "timer[%d]: oneshot\n", dev->irq);
++		ldsr_disable_vector(dev->irq);
++		break;
++
++	case CLOCK_EVT_MODE_PERIODIC:
++		/*
++		 * The periodic request is 1 per jiffies
++		 */
++		printk(KERN_NOTICE "timer[%d]: periodic: %d cycles\n",
++			dev->irq, frequency / CONFIG_HZ);
++		timer_set(dev->irq, frequency / CONFIG_HZ);
++		break;
++
++	case CLOCK_EVT_MODE_UNUSED:
++	case CLOCK_EVT_MODE_RESUME:
++		printk(KERN_WARNING "timer[%d]: unimplemented mode: %d\n",
++			dev->irq, mode);
++		break;
++	};
++}
++
++/*
++ * timer_device_event()
++ *	Call the device's event handler.
++ *
++ * The pointer is initialized by the generic Linux code
++ * to the function to be called.
++ */
++static irqreturn_t timer_device_event(int irq, void *dev_id)
++{
++	struct clock_event_device *dev = (struct clock_event_device *)dev_id;
++
++	if (dev->mode == CLOCK_EVT_MODE_PERIODIC) {
++		/*
++		 * The periodic request is 1 per jiffies
++		 */
++		timer_reset(dev->irq, frequency / CONFIG_HZ);
++	} else {
++		/*
++		 * The timer will go off again at the rollover
++		 * point.  We must disable the IRQ to prevent
++		 * getting a spurious interrupt.
++		 */
++		ldsr_disable_vector(dev->irq);
++	}
++
++	if (!dev->event_handler) {
++		printk(KERN_CRIT "no registered event handler\n");
++		return IRQ_HANDLED;
++	}
++
++	dev->event_handler(dev);
++	return IRQ_HANDLED;
++}
++
++/*
++ * timer_device_clockbase_read()
++ *	Provide a primary clocksource around the sysval timer.
++ */
++static cycle_t timer_device_clockbase_read(void)
++{
++	return (cycle_t)UBICOM32_IO_TIMER->sysval;
++}
++
++/*
++ * Primary Clock Source Description
++ *
++ * We use 24 for the shift factor because we want
++ * to ensure there are less than 2^24 clocks
++ * in a jiffie of 10 ms.
++ */
++static struct clocksource timer_device_clockbase = {
++	.name	= "sysval",
++	.rating	= 400,
++	.flags	= CLOCK_SOURCE_IS_CONTINUOUS,
++	.mask	= CLOCKSOURCE_MASK(32),
++	.shift	= 24,
++	.mult	= 0,
++	.read	= timer_device_clockbase_read,
++};
++
++/*
++ * timer_device_alloc_event()
++ * 	Allocate a timer device event.
++ */
++static int timer_device_alloc_event(const char *name, int cpuid, cpumask_t mask)
++{
++	struct clock_event_device *dev;
++	struct irqaction *action;
++
++	/*
++	 * Are we out of configured timers?
++	 */
++	spin_lock(&timer_device_lock);
++	if (timer_device_next_timer >= MAX_TIMERS) {
++		spin_unlock(&timer_device_lock);
++		printk(KERN_WARNING "out of timer event entries\n");
++		return -1;
++	}
++	dev = &timer_device_devs[timer_device_next_timer];
++	action = &timer_device_irqs[timer_device_next_timer];
++	timer_device_next_timer++;
++	spin_unlock(&timer_device_lock);
++
++	/*
++	 * Now allocate a timer to ourselves.
++	 */
++	dev->irq = timer_alloc();
++	if (dev->irq == -1) {
++		spin_lock(&timer_device_lock);
++		timer_device_next_timer--;
++		spin_unlock(&timer_device_lock);
++		printk(KERN_WARNING "out of hardware timers\n");
++		return -1;
++	}
++
++	/*
++	 * Init the IRQ action structure.  Make sure
++	 * this in place before you register the clock
++	 * event device.
++	 */
++	action->name = name;
++	action->flags = IRQF_DISABLED | IRQF_TIMER;
++	action->handler = timer_device_event;
++	action->mask = mask;
++	action->dev_id = dev;
++	setup_irq(dev->irq, action);
++	irq_set_affinity(dev->irq, mask);
++	ldsr_disable_vector(dev->irq);
++
++	/*
++	 * init clock dev structure.
++	 *
++	 * The min_delta_ns is chosen to ensure that setting next
++	 * event will never be requested with too small of value.
++	 */
++	dev->name = name;
++	dev->rating = timer_device_clockbase.rating;
++	dev->shift = timer_device_clockbase.shift;
++	dev->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
++	dev->set_mode = timer_device_set_mode;
++	dev->set_next_event = timer_device_set_next_event;
++	dev->mult = div_sc(frequency, NSEC_PER_SEC, dev->shift);
++	dev->max_delta_ns = clockevent_delta2ns(0xffffffff, dev);
++	dev->min_delta_ns = clockevent_delta2ns(100, dev);
++	dev->cpumask = mask;
++	printk(KERN_NOTICE "timer[%d]: %s - created\n", dev->irq, dev->name);
++
++	/*
++	 * Now register the device.
++	 */
++	clockevents_register_device(dev);
++	return dev->irq;
++}
++
++#if defined(CONFIG_LOCAL_TIMERS)
++/*
++ * local_timer_setup()
++ * 	Allocation function for creating a per cpu local timer.
++ */
++int __cpuinit local_timer_setup(unsigned int cpu)
++{
++	return timer_device_alloc_event("timer-cpu", cpu, cpumask_of_cpu(cpu));
++}
++#endif
++
++/*
++ * timer_device_init()
++ * 	Create and init a generic clock driver for Ubicom32.
++ */
++void timer_device_init(void)
++{
++	int i;
++
++	/*
++	 * Get the frequency from the processor device tree node or use
++	 * the default if not available. We will store this as the frequency
++	 * of the timer to avoid future calculations.
++	 */
++	frequency = processor_frequency();
++	if (frequency == 0) {
++		frequency = CLOCK_TICK_RATE;
++	}
++
++	/*
++	 * Setup the primary clock source around sysval.  Linux does not
++	 * supply a Mhz multiplier so convert down to khz.
++	 */
++	timer_device_clockbase.mult =
++		clocksource_khz2mult(frequency / 1000,
++			timer_device_clockbase.shift);
++	if (clocksource_register(&timer_device_clockbase)) {
++		printk(KERN_ERR "timer: clocksource failed to register\n");
++		return;
++	}
++
++	/*
++	 * Always allocate a primary timer.
++	 */
++	timer_device_alloc_event("timer-primary", -1, CPU_MASK_ALL);
++
++#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
++	/*
++	 * If BROADCAST is selected we need to add a broadcast timer.
++	 */
++	timer_device_alloc_event("timer-broadcast", -1, CPU_MASK_ALL);
++#endif
++
++	/*
++	 * Allocate extra timers that are requested.
++	 */
++	for (i = 0; i < CONFIG_TIMER_EXTRA_ALLOC; i++) {
++		timer_device_alloc_event("timer-extra", -1, CPU_MASK_ALL);
++	}
++}
++
+--- /dev/null
++++ b/arch/ubicom32/kernel/timer_tick.c
+@@ -0,0 +1,109 @@
++/*
++ * arch/ubicom32/kernel/timer_tick.c
++ *	Impelemets a perodic timer.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1991, 1992, 1995  Linus Torvalds
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/profile.h>
++
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++#if defined(CONFIG_SMP)
++#include <asm/smp.h>
++#endif
++
++static unsigned int timervector;
++static unsigned int frequency;
++
++/*
++ * timer_tick()
++ *	Kernel system timer support. Needs to keep up the real-time clock, 
++ * 	as well as call the "do_timer()" routine every clocktick.
++ */
++static irqreturn_t timer_tick(int irq, void *dummy)
++{
++	int ticks;
++
++	BUG_ON(!irqs_disabled());
++	ticks = timer_reset(timervector, frequency);
++
++	write_seqlock(&xtime_lock);
++	do_timer(ticks);
++	write_sequnlock(&xtime_lock);
++
++	update_process_times(user_mode(get_irq_regs()));
++	profile_tick(CPU_PROFILING);
++
++#if defined(CONFIG_SMP)
++	smp_send_timer_all();
++#endif
++	return(IRQ_HANDLED);
++}
++
++/*
++ * Data used by setup_irq for the timer.
++ */
++static struct irqaction timer_irq = {
++	.name	 = "timer",
++	.flags	 = IRQF_DISABLED | IRQF_TIMER,
++	.handler = timer_tick,
++};
++
++/*
++ * timer_tick_init()
++ * 	Implements a periodic timer
++ *
++ * This implementation directly calls the timer_tick() and move
++ * the Linux kernel forward.  This is used when the user has not
++ * selected GENERIC_CLOCKEVENTS.
++ */
++void timer_tick_init(void)
++{
++	/*
++	 * Now allocate a timer to ourselves.
++	 */
++	timervector = timer_alloc();
++	if (timervector == -1) {
++		printk(KERN_WARNING "where did the timer go?\n");
++		return;
++	}
++
++	setup_irq(timervector, &timer_irq);
++
++	/*
++	 * Get the frequency from the processor device tree node or use
++	 * the default if not available. We will store this as the frequency
++	 * of the timer to avoid future calculations.
++	 */
++	frequency = processor_frequency();
++	if (frequency == 0) {
++		frequency = CLOCK_TICK_RATE;
++	}
++	frequency /= CONFIG_HZ;
++
++	printk(KERN_NOTICE "timer will interrupt every: %d cycles\n", frequency);
++	timer_set(timervector, frequency);
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/topology.c
+@@ -0,0 +1,47 @@
++/*
++ * arch/ubicom32/kernel/topology.c
++ *   Ubicom32 architecture sysfs topology information.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/init.h>
++#include <linux/smp.h>
++#include <linux/cpu.h>
++#include <linux/cache.h>
++
++static struct cpu cpu_devices[NR_CPUS] __read_mostly;
++
++static int __init topology_init(void)
++{
++	int num;
++
++	for_each_present_cpu(num) {
++		cpu_devices[num].hotpluggable = 0;
++		register_cpu(&cpu_devices[num], num);
++	}
++	return 0;
++}
++
++subsys_initcall(topology_init);
+--- /dev/null
++++ b/arch/ubicom32/kernel/traps.c
+@@ -0,0 +1,510 @@
++/*
++ * arch/ubicom32/kernel/traps.c
++ *   Ubicom32 architecture trap handling support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++/*
++ * Sets up all exception vectors
++ */
++#include <linux/sched.h>
++#include <linux/signal.h>
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/a.out.h>
++#include <linux/user.h>
++#include <linux/string.h>
++#include <linux/linkage.h>
++#include <linux/init.h>
++#include <linux/ptrace.h>
++#include <linux/kallsyms.h>
++#include <linux/compiler.h>
++#include <linux/stacktrace.h>
++#include <linux/personality.h>
++
++#include <asm/uaccess.h>
++#include <asm/stacktrace.h>
++#include <asm/devtree.h>
++#include <asm/setup.h>
++#include <asm/fpu.h>
++#include <asm/system.h>
++#include <asm/traps.h>
++#include <asm/pgtable.h>
++#include <asm/machdep.h>
++#include <asm/siginfo.h>
++#include <asm/ip5000.h>
++#include <asm/thread.h>
++
++#define TRAP_MAX_STACK_DEPTH 20
++
++/*
++ * These symbols are filled in by the linker.
++ */
++extern unsigned long _stext;
++extern unsigned long _etext;
++
++extern unsigned long __ocm_text_run_begin;
++extern unsigned long __data_begin;
++
++const char *trap_cause_strings[] = {
++	/*0*/	"inst address decode error",
++	/*1*/	"inst sync error",
++	/*2*/	"inst illegal",
++	/*3*/	"src1 address decode error",
++	/*4*/	"dst address decode error",
++	/*5*/	"src1 alignment error",
++	/*6*/	"dst alignment error",
++	/*7*/	"src1 sync error",
++	/*8*/	"dst sync error",
++	/*9*/	"DCAPT error",
++	/*10*/	"inst range error",
++	/*11*/	"src1 range error",
++	/*12*/	"dst range error",
++};
++
++/*
++ * The device tree trap node definition.
++ */
++struct trapnode {
++	struct devtree_node dn;
++	unsigned int intthread;
++};
++
++static struct trapnode *tn;;
++
++/*
++ * trap_interrupt_handler()
++ *	Software Interrupt to ensure that a trap is serviced.
++ */
++static irqreturn_t trap_interrupt_handler(int irq, void *dummy)
++{
++	/* Do Nothing */
++	return IRQ_HANDLED;
++}
++
++/*
++ * Data used by setup_irq for the timer.
++ */
++static struct irqaction trap_irq = {
++	.name	 = "trap",
++	.flags	 = IRQF_DISABLED,
++	.handler = trap_interrupt_handler,
++};
++
++/*
++ * trap_cause_to_str()
++ *	Convert a trap_cause into a series of printk
++ */
++static void trap_cause_to_str(long status)
++{
++	int bit;
++
++	if ((status & ((1 << TRAP_CAUSE_TOTAL) - 1)) == 0) {
++		printk(KERN_NOTICE "decode: UNKNOWN CAUSES\n");
++		return;
++	}
++
++	for (bit = 0; bit < TRAP_CAUSE_TOTAL; bit++) {
++		if (status & (1 << bit)) {
++			printk(KERN_NOTICE "\tdecode: %08x %s\n",
++			       1 << bit, trap_cause_strings[bit]);
++		}
++	}
++}
++
++/*
++ * trap_print_information()
++ *	Print the cause of the trap and additional info.
++ */
++static void trap_print_information(const char *str, struct pt_regs *regs)
++{
++	printk(KERN_WARNING "\n");
++
++	if (current) {
++		printk(KERN_WARNING "Process %s (pid: %d)\n",
++			current->comm, current->pid);
++	}
++
++	if (current && current->mm) {
++		printk(KERN_NOTICE "text = 0x%p-0x%p  data = 0x%p-0x%p\n"
++			KERN_NOTICE "bss = 0x%p-0x%p   user-stack = 0x%p\n"
++			KERN_NOTICE "\n",
++			(void *)current->mm->start_code,
++			(void *)current->mm->end_code,
++			(void *)current->mm->start_data,
++			(void *)current->mm->end_data,
++			(void *)current->mm->end_data,
++			(void *)current->mm->brk,
++			(void *)current->mm->start_stack);
++	}
++
++	printk(KERN_WARNING "%s: Causes: 0x%08x\n", str,
++			(unsigned int)regs->trap_cause);
++	trap_cause_to_str(regs->trap_cause);
++	show_regs(regs);
++	show_stack(NULL, (unsigned long *)regs->an[7]);
++	printk(KERN_NOTICE "--- End Trap --- \n");
++}
++
++/*
++ * dump_stack()
++ *	Dump the stack of the current task.
++ */
++void dump_stack(void)
++{
++	show_stack(NULL, NULL);
++}
++EXPORT_SYMBOL(dump_stack);
++
++/*
++ * show_stack()
++ *	Print out information from the current stack.
++ */
++void show_stack(struct task_struct *task, unsigned long *sp)
++{
++	/*
++	 *  Allocate just enough entries on the stack.
++	 */
++	unsigned int calls[TRAP_MAX_STACK_DEPTH];
++	unsigned long code_start = (unsigned long)CONFIG_RAMBASE;
++	unsigned long code_end = (unsigned long)CONFIG_RAMBASE+CONFIG_RAMSIZE;
++	unsigned long ocm_code_start = (unsigned long)&__ocm_text_run_begin;
++	unsigned long ocm_code_end = (unsigned long)&__data_begin;
++	unsigned long stack_end = (unsigned long)(current->stack + THREAD_SIZE - 8);
++	unsigned long stack = (unsigned long)sp;
++	int kernel_stack = 1;
++
++	/*
++	 * Which task are we talking about.
++	 */
++	if (!task) {
++		task = current;
++	}
++
++	/*
++	 * Find the stack for the task if one was not specified.  Otherwise
++	 * use the specified stack.
++	 */
++	if (!stack) {
++		if (task != current) {
++			stack = task->thread.sp;
++			stack_end = (unsigned long)task->stack + THREAD_SIZE - 8;
++		} else {
++			asm volatile (
++				"move.4		%0, SP		\n\t"
++				: "=r" (stack)
++			);
++		}
++	}
++
++	printk(KERN_NOTICE "Starting backtrace: PID %d '%s'\n",
++			task->pid, task->comm);
++
++	/*
++	 * We do 2 passes the first pass is Kernel stack is the second
++	 * User stack.
++	 */
++	while (kernel_stack) {
++		unsigned long *handle;
++		unsigned int i, idx = 0;
++		struct pt_regs *pt = task_pt_regs(task);
++
++		/*
++		 * If the task is in user mode, reset the start
++		 * and end values for text.
++		 */
++		if (__user_mode(stack)) {
++			if (!(task->personality & FDPIC_FUNCPTRS)) {
++				printk(KERN_NOTICE "  User Stack:\n");
++				code_start = task->mm->start_code;
++				code_end = task->mm->end_code;
++			} else {
++				printk(KERN_NOTICE "  User Stack (fdpic):\n");
++
++			}
++			stack_end = task->mm->start_stack;
++			ocm_code_end = ocm_code_start = 0;
++			kernel_stack = 0;
++		} else {
++			printk(KERN_NOTICE "  Kernel Stack:\n");
++		}
++
++		/*
++		 * Collect the stack back trace information.
++		 */
++		printk("    code[0x%lx-0x%lx]", code_start, code_end);
++		if (ocm_code_start) {
++			printk(" ocm_code[0x%lx-0x%lx]",
++			       ocm_code_start, ocm_code_end);
++		}
++		printk("\n    stack[0x%lx-0x%lx]\n", stack, stack_end);
++
++		handle = (unsigned long*)stack;
++		while (idx < TRAP_MAX_STACK_DEPTH) {
++			calls[idx] = stacktrace_iterate(&handle,
++					code_start, code_end,
++					ocm_code_start, ocm_code_end,
++					(unsigned long)stack, stack_end);
++			if (calls[idx] == 0) {
++				break;
++			}
++			idx++;
++		}
++
++		/*
++		 * Now print out the data.
++		 */
++		printk(KERN_NOTICE "  CALL && CALLI on stack:");
++		for (i = 0; i < idx; i++) {
++			printk("%s0x%x, ", (i & 0x3) == 0 ?  "\n    " : "",
++					calls[i]);
++		}
++		printk(idx == TRAP_MAX_STACK_DEPTH ? "...\n" : "\n");
++
++		/*
++		 * If we are doing user stack we are done
++		 */
++		if (!kernel_stack) {
++			break;
++		}
++
++		/*
++		 * Does this kernel stack have a mm (i.e. is it user)
++		 */
++		if (!task->mm) {
++			printk("No mm for userspace stack.\n");
++			break;
++		}
++		/*
++		 * Get the user-mode stack (if any)
++		 */
++		stack = pt->an[7];
++		printk(KERN_NOTICE "Userspace stack at 0x%lx frame type %d\n",
++				stack, (int)pt->frame_type);
++		if (!__user_mode(stack)) {
++			break;
++		}
++	}
++}
++
++/*
++ * die_if_kernel()
++ *	Determine if we are in kernel mode and if so print stuff out and die.
++ */
++void die_if_kernel(char *str, struct pt_regs *regs, long trap_cause)
++{
++	unsigned int s3value;
++
++	if (user_mode(regs)) {
++		return;
++	}
++
++	console_verbose();
++	trap_print_information(str, regs);
++
++	/*
++	 * If the debugger is attached via the hardware mailbox protocol,
++	 * go into an infinite loop and the debugger will figure things out.
++	 */
++	asm volatile (
++	      "move.4 %0, scratchpad3"
++	      : "=r" (s3value)
++	);
++	if (s3value) {
++		asm volatile("1:	jmpt.t 1b");
++	}
++
++	/*
++	 * Set the debug taint value.
++	 */
++	add_taint(TAINT_DIE);
++	do_exit(SIGSEGV);
++}
++
++/*
++ * trap_handler()
++ *	Handle traps.
++ *
++ * Traps are treated as interrupts and registered with the LDSR.  When
++ * the LDSR takes the interrupt, it will determine if a trap has occurred
++ * and service the trap prior to servicing the interrupt.
++ *
++ * This function is directly called by the LDSR.
++ */
++void trap_handler(int irq, struct pt_regs *regs)
++{
++	int sig = SIGSEGV;
++	siginfo_t info;
++	unsigned int trap_cause = regs->trap_cause;
++
++	BUG_ON(!irqs_disabled());
++
++	/*
++	 * test if in kernel and die.
++	 */
++	die_if_kernel("Kernel Trap", regs, trap_cause);
++
++	/*
++	 * User process problem, setup a signal for this process
++	 */
++	if ((trap_cause & (1 << TRAP_CAUSE_DST_RANGE_ERR)) ||
++	    (trap_cause & (1 << TRAP_CAUSE_SRC1_RANGE_ERR)) ||
++	    (trap_cause & (1 << TRAP_CAUSE_I_RANGE_ERR))) {
++		sig = SIGSEGV;
++		info.si_code = SEGV_MAPERR;
++	} else if ((trap_cause & (1 << TRAP_CAUSE_DST_MISALIGNED)) ||
++		   (trap_cause & (1 << TRAP_CAUSE_SRC1_MISALIGNED))) {
++		sig = SIGBUS;
++		info.si_code = BUS_ADRALN;
++	} else if ((trap_cause & (1 << TRAP_CAUSE_DST_DECODE_ERR)) ||
++		   (trap_cause & (1 << TRAP_CAUSE_SRC1_DECODE_ERR))) {
++		sig = SIGILL;
++		info.si_code = ILL_ILLOPN;
++	} else if ((trap_cause & (1 << TRAP_CAUSE_ILLEGAL_INST))) {
++		/*
++		 * Check for software break point and if found signal trap
++		 * not illegal instruction.
++		 */
++		unsigned long instruction;
++		if (between(regs->pc, CONFIG_RAMBASE,
++			    CONFIG_RAMBASE + CONFIG_RAMSIZE) &&
++			(regs->pc & 3) == 0 &&
++			get_user(instruction, (unsigned long *)regs->pc) == 0) {
++
++			/*
++			 * This used to be 0xaabbccdd but it turns out
++			 * that is now valid in ubicom32v4 isa so we
++			 * have switched to 0xfabbccdd
++			 */
++			if ((instruction == 0xfabbccdd) ||
++			    (instruction == 0xaabbccdd)) {
++				sig = SIGTRAP;
++				info.si_code = TRAP_BRKPT;
++				goto send_signal;
++			}
++		}
++		sig = SIGILL;
++		info.si_code = ILL_ILLOPC;
++	} else if ((trap_cause & (1 << TRAP_CAUSE_I_DECODE_ERR))) {
++		sig = SIGILL;
++		info.si_code = ILL_ILLOPC;
++	} else if ((trap_cause & (1 << TRAP_CAUSE_DCAPT))) {
++		sig = SIGTRAP;
++		info.si_code = TRAP_TRACE;
++	}
++
++	/*
++	 * Print a trap information block to the console, do not
++	 * print this above the case because we don't want it
++	 * printed for software break points.
++	 */
++	trap_print_information("User Trap", regs);
++
++send_signal:
++
++	force_sig_info(sig, &info, current);
++
++	/*
++	 * Interrupts are disabled, re-enable them now.
++	 */
++	if (!irqs_disabled()) {
++		printk(KERN_EMERG "interrupts enabled on exit, irq=%d, regs=%p",
++				irq, regs);
++		BUG();
++	}
++}
++
++/*
++ * trap_init_interrupt()
++ *	We need a 2nd trap handling init that will occur after init_IRQ().
++ */
++void __init trap_init_interrupt(void)
++{
++	int err;
++	unsigned char tirq;
++	struct devtree_node *dn = (struct devtree_node *)tn;
++
++	/*
++	 * Now setup the Software IRQ so that if a trap occurs the LDSR
++	 * is started.  The irq is there just to "force" the LDSR to run.
++	 */
++	if (!tn) {
++		printk(KERN_WARNING "trap_init_interrupt skipped.\n");
++		return;
++	}
++
++	err = devtree_irq(dn, NULL, &tirq);
++	if (err) {
++		printk(KERN_WARNING "error obtaining trap irq value: %d\n",
++			err);
++		return;
++	}
++
++	if (tirq == DEVTREE_IRQ_NONE) {
++		printk(KERN_WARNING "trap irq not available: %d\n", tirq);
++		return;
++	}
++
++	err = setup_irq(tirq, &trap_irq);
++	if (err) {
++		printk(KERN_WARNING "trap irq setup failed: %d\n", err);
++		return;
++	}
++
++	/*
++	 * Let ultra know which thread is handling the traps and
++	 * what the interrupt to use is.
++	 */
++	tn->intthread = ldsr_get_threadid();
++
++	/*
++	 * Tell the LDSR about our IRQ so that it will unsuspend
++	 * if one occurs while waiting for the per thread lock.
++	 */
++	ldsr_set_trap_irq(tirq);
++}
++
++/*
++ * trap_init()
++ *	init trap handling
++ *
++ * Trap handling is done through the ldsr.  Every time an interrupt
++ * occurs, the LDSR looks for threads that are listed in the TRAP
++ * register and forces a call to the trap handler.
++ */
++void __init trap_init(void)
++{
++	/*
++	 * If we do not have a trap node in the device tree, we leave the fault
++	 * handling to the underlying hardware.
++	 */
++	tn = (struct trapnode *)devtree_find_node("traps");
++	if (!tn) {
++		printk(KERN_WARNING "traps are not handled by linux\n");
++		return;
++	}
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/uaccess.c
+@@ -0,0 +1,109 @@
++/*
++ * arch/ubicom32/include/asm/uaccess.c
++ *   User space memory access functions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/string.h>
++#include <linux/module.h>
++
++#include <asm/segment.h>
++#include <asm/uaccess.h>
++
++extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
++
++/*
++ * __access_ok()
++ *	Check that the address is in the current processes.
++ * 
++ * NOTE: The kernel uses "pretend" user addresses that wind
++ * up calling access_ok() so this approach has only marginal
++ * value because you wind up with lots of false positives.
++ */
++int __access_ok(unsigned long addr, unsigned long size)
++{
++	// struct vm_area_struct *vma;
++
++	/*
++	 * Don't do anything if we are not a running system yet.
++	 */
++	if (system_state != SYSTEM_RUNNING) {
++		return 1;
++	}
++
++	/*
++	 * It appears that Linux will call this function even when we are not
++	 * in the context of a user space application that has a VM address 
++	 * space.  So we must check that current and mm are valid before
++	 * performing the check.
++	 */
++	if ((!current) || (!current->mm)) {
++		return 1;
++	}
++
++	/*
++	 * We perform some basic checks on the address to ensure that it
++	 * is at least within the range of DRAM.
++	 */
++	if ((addr < (int)&_etext) || (addr > memory_end)) {
++		printk(KERN_WARNING "pid=%d[%s]: range [%lx - %lx] not in memory area: [%lx - %lx]\n",
++			current->pid, current->comm, 
++			addr, addr + size,
++			memory_start, memory_end);
++		return 0;
++	}
++
++	/*
++	 * For nommu Linux we can check this by looking at the allowed
++	 * memory map for the process.
++	 *
++	 * TODO: Since the kernel passes addresses in it's own space as though
++	 * they were user address, we can not validate the addresses this way.
++	 */
++#if 0
++	if (!down_read_trylock(&current->mm->mmap_sem)) {
++		return 1;
++	}
++	vma = find_vma(current->mm, addr);
++	if (!vma) {
++		up_read(&current->mm->mmap_sem);
++		printk(KERN_WARNING "pid=%d[%s]: possible invalid acesss on range: [%lx - %lx]\n",
++				current->pid, current->comm, addr, addr + size);
++		return 1;
++	}
++	if ((addr + size) > vma->vm_end) {
++		up_read(&current->mm->mmap_sem);
++		printk(KERN_WARNING "pid=%d[%s]: possible invalid length on range: [%lx - %lx]\n",
++				current->pid, current->comm, addr, addr + size);
++		return 1;
++	}
++	up_read(&current->mm->mmap_sem);
++#endif
++	return 1;
++}
++
++EXPORT_SYMBOL(__access_ok);
+--- /dev/null
++++ b/arch/ubicom32/kernel/ubicom32_context_switch.S
+@@ -0,0 +1,325 @@
++/*
++ * arch/ubicom32/kernel/ubicom32_context_switch.S
++ *	Implements context switch and return functions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/sys.h>
++#include <linux/linkage.h>
++#include <asm/asm-offsets.h>
++#include <asm/ubicom32-common.h>
++#include <asm/ip5000.h>
++#include <asm/range-protect.h>
++
++/*
++ * restore_context()
++ *	Restore the full context from sp (struct pt_reg *)
++ *
++ * Note: Recovered PC and CSR are saved on the stack and are to be popped off
++ * before returning.
++ */
++.macro restore_context
++	move.4	a0, sp			; Set up a0 as base address for register recovery
++	move.4	sp, PT_SP(a0)		; Recover Stack pointer from save area
++	move.4	-4(sp)++, PT_PC(a0)	; Recover saved PC and save to stack
++	move.4	-4(sp)++, PT_CSR(a0)	; Recover saved csr and save to stack
++	move.4	d0, PT_D0(a0)
++	move.4	d1, PT_D1(a0)
++	move.4	d2, PT_D2(a0)
++	move.4	d3, PT_D3(a0)
++	move.4	d4, PT_D4(a0)
++	move.4	d5, PT_D5(a0)
++	move.4	d6, PT_D6(a0)
++	move.4	d7, PT_D7(a0)
++	move.4	d8, PT_D8(a0)
++	move.4	d9, PT_D9(a0)
++	move.4	d10, PT_D10(a0)
++	move.4	d11, PT_D11(a0)
++	move.4	d12, PT_D12(a0)
++	move.4	d13, PT_D13(a0)
++	move.4	d14, PT_D14(a0)
++	move.4	d15, PT_D15(a0)
++	move.4	a1, PT_A1(a0)
++	move.4	a2, PT_A2(a0)
++	move.4	a3, PT_A3(a0)
++	move.4	a4, PT_A4(a0)
++	move.4	a5, PT_A5(a0)
++	move.4	a6, PT_A6(a0)
++	move.4	acc0_hi, PT_ACC0HI(a0)
++	move.4	acc0_lo, PT_ACC0LO(a0)
++	move.4	mac_rc16, PT_MAC_RC16(a0)
++	move.4	acc1_hi, PT_ACC1HI(a0)
++	move.4	acc1_lo, PT_ACC1LO(a0)
++	move.4	source3, PT_SOURCE3(a0)
++	move.4	int_mask0, PT_INT_MASK0(a0)
++	move.4	int_mask1, PT_INT_MASK1(a0)
++	move.4	a0, PT_A0(a0)
++.endm
++
++/*
++ * ldsr_thread_enable_interrupts()
++ *	An assembly version of the enable interrupts function.
++ *
++ * The stack is fair game but all registers MUST be preserved.
++ *
++ */
++.macro ldsr_thread_enable_interrupts
++	move.4	-4(sp)++, d3	; Push d3
++	move.4	-4(sp)++, a3	; Push a3
++
++	/*
++	 * Read the ROSR and obtain ~(1 << tid)
++	 */
++	lsr.4	d3, rosr, #0x2	; Move the thread portion of ROSR into d3
++	lsl.4	d3, #1, d3	; perform a (1 << tid)
++	not.4	d3, d3		; Negate the value of d3 == ~(1 << threadid)
++
++	/*
++	 * Get the value of the ldsr_soft_irq_mask
++	 */
++	moveai	a3, #%hi(ldsr_soft_irq_mask)
++	move.4	a3, %lo(ldsr_soft_irq_mask)(a3)
++
++	/*
++	 * Now re-enable interrupts for this thread and then
++	 * wakeup the LDSR.
++	 */
++	and.4	scratchpad1, scratchpad1, d3
++	move.4	int_set0, a3
++
++	/*
++	 * Restore the registers.
++	 */
++	move.4	a3, (sp)4++
++	move.4	d3, (sp)4++
++.endm
++
++/*
++ * ret_from_interrupt_to_kernel()
++ *	RFI function that is where do_IRQ() returns to if the thread was in kernel space.
++ */
++	.section .text.ret_from_interrupt_to_kernel
++	.global ret_from_interrupt_to_kernel
++ret_from_interrupt_to_kernel:
++	atomic_lock_acquire		; Enter critical section
++	restore_context			; Restore the thread context
++	atomic_lock_release		; Leave critical section
++	ldsr_thread_enable_interrupts	; enable the threads interrupts
++	move.4	csr, (sp)4++		; Restore csr from the stack
++	ret	(sp)4++
++
++/*
++ * ret_from_interrupt_to_user()
++ *	RFI function that is where do_IRQ() returns to if the thread was in user space.
++ *
++ * TODO: Do we really need the ciritical section handling in this code?
++ *
++ */
++	.section .ret_from_interrupt_to_user.text
++	.global ret_from_interrupt_to_user
++ret_from_interrupt_to_user:
++	ldsr_thread_enable_interrupts			; enable the threads interrupts
++	movei	d0, #(~(ASM_THREAD_SIZE-1))
++	and.4	a3, sp, d0				; a3 now has the thread info pointer
++
++	/*
++	 * Test if the scheduler needs to be called.
++	 */
++	btst	TI_FLAGS(a3), #ASM_TIF_NEED_RESCHED
++	jmpeq.t	2f
++	moveai	a5, #%hi(schedule)
++	calli	a5, %lo(schedule)(a5)			; Call the scheduler. I will come back here.
++
++	/*
++	 * See if we have pending signals and call do_signal
++	 * if needed.
++	 */
++2:	atomic_lock_acquire				; Enter critical section
++	move.4	-4(sp)++, a1				; Save A1 on the stack. We are going to use a1 it.
++	movei	d0, #(~(ASM_THREAD_SIZE-1))
++	and.4	a1, sp, d0				; a1 now has the thread info pointer
++	btst	TI_FLAGS(a1), #ASM_TIF_SIGPENDING	; Any signals needed?
++	jmpeq.t	1f
++
++
++	/*
++	 * Now call do_signal()
++	 */
++	atomic_lock_release				; Leave critical section
++	move.4	d0, #0					; oldset pointer is NULL
++	lea.1	d1, 4(sp)				; d1 is the regs pointer
++	moveai	a5, #%hi(do_signal)
++	calli	a5, %lo(do_signal)(a5)			; Call do_signal()
++
++	/*
++	 * Back from do_signal(), re-enter critical section.
++	 */
++	atomic_lock_acquire				; Enter critical section
++
++1:	move.4	a1, (sp)4++				; pop A1 off the stack
++
++	disable_kernel_ranges_for_current d15		; disable kernel ranges
++
++	restore_context					; restore the previous context
++	atomic_lock_release				; Leave critical section
++	move.4	csr, (sp)4++				; Restore csr from the stack
++	ret	(sp)4++
++
++/*
++ * restore_all_registers()
++ *
++ * restore_all_registers will be the alternate exit route for
++ * preempted processes that have called a signal handler
++ * and are returning back to user space.
++ */
++	.global restore_all_registers
++restore_all_registers:
++	atomic_lock_acquire			; Enter critical section
++	disable_kernel_ranges_for_current d15	; disable kernel ranges
++	atomic_lock_release			; Leave critical section
++	restore_context				; restore previous context
++	move.4	csr, (sp)4++			; Restore csr from the stack
++	ret	(sp)4++
++
++/*
++ * ret_from_fork()
++ *	Called on the child's return from fork system call.
++ */
++	.section .ret_from_fork.text
++	.global ret_from_fork
++ret_from_fork:
++	;;;  d0 contains the arg for schedule_tail
++	;;;  the others we don't care about as they are in PT_REGS (sp)
++	moveai  a5, #%hi(schedule_tail)
++	calli   a5, %lo(schedule_tail)(a5)
++
++	atomic_lock_acquire		; Enter critical section
++
++	move.4	a3, sp
++	move.4	d0, PT_D0(a3)		; Restore D0
++	move.4	d1, PT_D1(a3)		; Restore D1
++	move.4	d2, PT_D2(a3)		; Restore D2
++	move.4	d3, PT_D3(a3)		; Restore D3
++	move.4	d10, PT_D10(a3)		; Restore D10
++	move.4	d11, PT_D11(a3)		; Restore D11
++	move.4	d12, PT_D12(a3)		; Restore D12
++	move.4	d13, PT_D13(a3)		; Restore D13
++	move.4	a1, PT_A1(a3)		; Restore A1
++	move.4	a2, PT_A2(a3)		; Restore A2
++	move.4	a5, PT_A5(a3)		; Restore A5
++	move.4	a6, PT_A6(a3)		; Restore A6
++	move.4	sp, PT_SP(a3)		; Restore sp
++	move.4	a4, PT_PC(a3)		; Restore pc in register a4
++	move.4	PT_FRAME_TYPE(a3), #0	; Clear frame_type to indicate it is invalid.
++
++	disable_kernel_ranges_for_current d15
++	atomic_lock_release		; Leave critical section
++	calli	a4, 0(a4)		; Return.
++
++/*
++ * __switch_to()
++ *
++ * Call with:
++ *	void *__switch_to(struct task_struct *prev, struct thread_struct *prev_switch,
++ *				struct thread_struct *next_switch)
++ */
++	.global __switch_to
++__switch_to:
++
++	/*
++	 * Set up register a3 to point to save area.
++	 */
++	movea	a3, d1			; a3 now holds prev_switch
++	move.4	(a3)4++, d10
++	move.4	(a3)4++, d11
++	move.4	(a3)4++, d12
++	move.4	(a3)4++, d13
++	move.4	(a3)4++, a1
++	move.4	(a3)4++, a2
++	move.4	(a3)4++, a5
++	move.4	(a3)4++, a6
++	move.4	(a3)4++, a7
++
++	/*
++	 * Set up register a3 to point to restore area.
++	 */
++	movea	a3, d2			; a3 now holds next_switch
++	move.4	d10 , (a3)4++
++	move.4	d11 , (a3)4++
++	move.4	d12 , (a3)4++
++	move.4	d13 , (a3)4++
++	move.4	a1 , (a3)4++
++	move.4	a2 , (a3)4++
++	move.4	a5 , (a3)4++
++	move.4	a6 , (a3)4++
++	move.4	a7 , (a3)4++
++
++	/*
++	 * Load the sw_ksp with the proper thread_info pointer.
++	 */
++	movei	d15, #(~(ASM_THREAD_SIZE-1))
++	and.4	a3, sp, d15		; a3 now has the thread info pointer
++	moveai	a4, #%hi(sw_ksp)
++	lea.1	a4, %lo(sw_ksp)(a4)	; a4 now has the base address of sw_ksp array
++	lsr.4	d15, ROSR, #2		; Thread number + garbage
++	and.4	d15, #31, D15		; Mask to get thread number into register D15
++	move.4	(a4, d15), a3		; Load the thread info pointer into the hw_ksp array..
++
++	/*
++	 * We are done with context switch. Time to return..
++	 */
++	ret	a5
++
++
++/*
++ * ubicom32_emulate_insn()
++ *	Emulates the instruction.
++ *
++ * Call with:
++ *	unsigned int ubicom32_emulate_insn(int source1, int source2, int source3, int *save_acc, int *save_csr);
++ */
++	.global ubicom32_emulate_insn
++	.global trap_emulate
++ubicom32_emulate_insn:
++	movea	a3, d3		; a3 holds save_acc pointer
++	movea	a4, d4		; a4 hods save_csr pointer
++	move.4	source3, d2
++	move.4	acc0_lo, (a3)
++	move.4	acc0_hi, 4(a3)
++	move.4	acc1_lo, 8(a3)
++	move.4	acc1_hi, 12(a3)
++	move.4	mac_rc16, 16(a3)
++	move.4	CSR, (a4)
++	setcsr_flush 0
++
++trap_emulate:
++	move.4	d0, d1
++	setcsr_flush 0
++	move.4	(a4), CSR	; Save csr
++	move.4	(a3), acc0_lo
++	move.4	4(a3), acc0_hi
++	move.4	8(a3), acc1_lo
++	move.4	12(a3), acc1_hi
++	move.4	16(a3), mac_rc16
++	ret	a5
+--- /dev/null
++++ b/arch/ubicom32/kernel/ubicom32_ksyms.c
+@@ -0,0 +1,95 @@
++/*
++ * arch/ubicom32/kernel/ubicom32_ksyms.c
++ *   Ubicom32 architecture compiler support and misc symbols.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/linkage.h>
++#include <linux/sched.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/user.h>
++#include <linux/elfcore.h>
++#include <linux/in6.h>
++#include <linux/interrupt.h>
++#include <linux/io.h>
++#include <linux/semaphore.h>
++
++#include <asm/setup.h>
++#include <asm/machdep.h>
++#include <asm/pgalloc.h>
++#include <asm/irq.h>
++#include <asm/checksum.h>
++#include <asm/current.h>
++
++/* platform dependent support */
++
++EXPORT_SYMBOL(__ioremap);
++EXPORT_SYMBOL(iounmap);
++
++EXPORT_SYMBOL(ip_fast_csum);
++
++
++/* Networking helper routines. */
++EXPORT_SYMBOL(csum_partial_copy_nocheck);
++
++/* The following are special because they're not called
++   explicitly (the C compiler generates them).  Fortunately,
++   their interface isn't gonna change any time soon now, so
++   it's OK to leave it out of version control.  */
++EXPORT_SYMBOL(memcpy);
++EXPORT_SYMBOL(memset);
++
++#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) || __GNUC__ > 4
++/*
++ * libgcc functions - functions that are used internally by the
++ * compiler...  (prototypes are not correct though, but that
++ * doesn't really matter since they're not versioned).
++ */
++extern void __ashldi3(void);
++extern void __ashrdi3(void);
++extern void __divsi3(void);
++extern void __lshrdi3(void);
++extern void __modsi3(void);
++extern void __muldi3(void);
++extern void __udivsi3(void);
++extern void __umodsi3(void);
++
++/* gcc lib functions */
++EXPORT_SYMBOL(__ashldi3);
++EXPORT_SYMBOL(__ashrdi3);
++EXPORT_SYMBOL(__divsi3);
++EXPORT_SYMBOL(__lshrdi3);
++EXPORT_SYMBOL(__modsi3);
++EXPORT_SYMBOL(__muldi3);
++EXPORT_SYMBOL(__udivsi3);
++EXPORT_SYMBOL(__umodsi3);
++#else
++extern void __libgcc_udivmodsi(void);
++extern void __libgcc_divmodsi(void);
++
++EXPORT_SYMBOL(__libgcc_udivmodsi);
++EXPORT_SYMBOL(__libgcc_divmodsi);
++#endif
+--- /dev/null
++++ b/arch/ubicom32/kernel/ubicom32_syscall.S
+@@ -0,0 +1,643 @@
++/*
++ * arch/ubicom32/kernel/ubicom32_syscall.S
++ *	<TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/sys.h>
++#include <linux/linkage.h>
++#include <linux/unistd.h>
++
++#include <asm/ubicom32-common.h>
++#include <asm/thread_info.h>
++#include <asm/asm-offsets.h>
++#include <asm/range-protect.h>
++
++/*
++ * system_call()
++ */
++	.section .syscall_entry.text
++	.global system_call
++system_call:
++	/*
++	 * Regular ABI rules for function calls apply for syscall.  d8 holds
++	 * the syscall number. We will use that to index into the syscall table.
++	 * d0 - d5 hold the parameters.
++	 *
++	 * First we get the current thread_info and swap to the kernel stack.
++	 * This is done by reading the current thread and looking up the ksp
++	 * from the sw_ksp array and storing it in a3.
++	 *
++	 * Then we reserve space for the syscall context a struct pt_regs and
++	 * save it using a4 initially and later as sp.
++	 * Once sp is set to the kernel sp we can leave the critical section.
++	 *
++	 * For the user case the kernel stack will have the following layout.
++	 *
++	 *  a3		 ksp[0] +-----------------------+
++	 *			| Thread info area	|
++	 *			| struct thread_info	|
++	 *			+-----------------------+
++	 *			:			:
++	 *			|   Kernel Stack Area	|
++	 *			|			|
++	 *  a4 / sp >>>		+-----------------------+
++	 *			| Context save area	|
++	 *			| struct pt_reg		|
++	 *  ksp[THREAD_SIZE-8]  +-----------------------+
++	 *			| 8 Byte Buffer Zone	|
++	 *  ksp[THREAD_SIZE]    +-----------------------+
++
++	 *
++	 * For kernel syscalls the layout is as follows.
++	 *
++	 *  a3		 ksp[0] +-----------------------+
++	 *			| Thread info area	|
++	 *			| struct thread_info	|
++	 *			+-----------------------+
++	 *			:			:
++	 *			|   Kernel Stack Area	|
++	 *			|			|
++	 *  a4 / sp >>>		+-----------------------+
++	 *			| Context save area	|
++	 *			| struct pt_reg		|
++	 * sp at syscall entry  +-----------------------+
++	 *			| Callers Kernel Stack	|
++	 *			:			:
++	 *
++	 * Once the context is saved we optionally call syscall_trace and setup
++	 * the exit routine and jump to the syscall.
++	 */
++
++	/*
++	 * load the base address for sw_ksp into a3
++	 * Note.. we cannot access it just yet as protection is still on.
++	 */
++	moveai	a3, #%hi(sw_ksp)
++	lea.1	a3, %lo(sw_ksp)(a3)
++
++	/*
++	 * Enter critical section .
++	 *
++	 * The 'critical' aspects here are the switching the to the ksp and
++	 * changing the protection registers, these both use per thread
++	 * information so we need to protect from a context switch. For now this
++	 * is done using the global atomic lock.
++	 */
++	atomic_lock_acquire
++
++	thread_get_self d15			; Load current thread number
++#ifdef CONFIG_PROTECT_KERNEL
++	lsl.4	d9, #1, d15			; Convert to thread bit
++	enable_kernel_ranges d9
++#endif
++	/*
++	 * We need to Determine if this is a kernel syscall or user syscall.
++	 * Start by loading the pointer for the thread_info structure for the
++	 * current process in to a3.
++	 */
++	move.4	a3, (a3, d15)			; a3 = sw_ksp[d15]
++
++	/*
++	 * Now if this is a kernel thread the same value can be a acheived by
++	 * masking off the lower bits on the current stack pointer.
++	 */
++	movei	d9, #(~(ASM_THREAD_SIZE-1))	; load mask
++	and.4	d9, sp, d9			; apply mask
++
++	/*
++	 * d9 now has the masked version of the sp. If this is identical to
++	 * what is in a3 then don't switch to ksp as we are already in the
++	 * kernel.
++	 */
++	sub.4	#0, a3, d9
++
++	/*
++	 * if d9 and a3 are not equal. We are usespace and have to shift to
++	 * ksp.
++	 */
++	jmpne.t	1f
++
++	/*
++	 * Kernel Syscall.
++	 *
++	 * The kernel has called this routine. We have to pdec space for pt_regs
++	 * from sp.
++	 */
++	pdec	a4, PT_SIZE(sp)			; a4 = ksp - PT_SIZE
++	jmpt.t	2f
++
++	/*
++	 * Userspace Syscall.
++	 *
++	 * Add THREAD_SIZE and subtract PT_SIZE to create the proper ksp
++	 */
++1:	movei	d15, #(ASM_THREAD_SIZE - 8 - PT_SIZE)
++	lea.1	a4, (a3, d15)			; a4 = ksp + d15
++
++	/*
++	 * Replace user stack pointer with kernel stack pointer (a4)
++	 * Load -1 into frame_type in save area to indicate this is system call
++	 * frame.
++	 */
++2:	move.4	PT_A7(a4), a7			; Save old sp/A7 on kernel stack
++	move.4	PT_FRAME_TYPE(a4), #-1		; Set the frame type.
++	move.4	sp, a4				; Change to ksp.
++	/*
++	 * We are now officially back in the kernel!
++	 */
++
++	/*
++	 * Now that we are on the ksp we can leave the critical section
++	 */
++	atomic_lock_release
++
++	/*
++	 * We need to save a0 because we need to be able to restore it in
++	 * the event that we need to handle a signal.  It's not generally
++	 * a callee-saved register but is the GOT pointer.
++	 */
++	move.4	PT_A0(sp), a0			; Save A0 on kernel stack
++
++	/*
++	 * We still need to save d10-d13, a1, a2, a5, a6 in the kernel frame
++	 * for this process, we also save the system call params in the case of
++	 * syscall restart. (note a7 was saved above)
++	 */
++	move.4	PT_A1(sp), a1			; Save A1 on kernel stack
++	move.4	PT_A2(sp), a2			; Save A2 on kernel stack
++	move.4	PT_A5(sp), a5			; Save A5 on kernel stack
++	move.4	PT_A6(sp), a6			; Save A6 on kernel stack
++	move.4	PT_PC(sp), a5			; Save A5 at the PC location
++	move.4	PT_D10(sp), d10			; Save D10 on kernel stack
++	move.4	PT_D11(sp), d11			; Save D11 on kernel stack
++	move.4	PT_D12(sp), d12			; Save D12 on kernel stack
++	move.4	PT_D13(sp), d13			; Save D13 on kernel stack
++
++	/*
++	 * Now save the syscall parameters
++	 */
++	move.4	PT_D0(sp), d0			; Save d0 on kernel stack
++	move.4	PT_ORIGINAL_D0(sp), d0		; Save d0 on kernel stack
++	move.4	PT_D1(sp), d1			; Save d1 on kernel stack
++	move.4	PT_D2(sp), d2			; Save d2 on kernel stack
++	move.4	PT_D3(sp), d3			; Save d3 on kernel stack
++	move.4	PT_D4(sp), d4			; Save d4 on kernel stack
++	move.4	PT_D5(sp), d5			; Save d5 on kernel stack
++	/* add this back if we ever have a syscall with 7 args */
++	move.4	PT_D8(sp), d8			; Save d8 on kernel stack
++
++	/*
++	 * Test if syscalls are being traced and if they are jump to syscall
++	 * trace (it will comeback here)
++	 */
++	btst	TI_FLAGS(a3), #ASM_TIF_SYSCALL_TRACE
++	jmpne.f .Lsystem_call__trace
++.Lsystem_call__trace_complete:
++	/*
++	 * Check for a valid call number [ 0 <= syscall_number < NR_syscalls ]
++	 */
++	cmpi	d8, #0
++	jmplt.f 3f
++	cmpi	d8, #NR_syscalls
++	jmplt.t	4f
++
++	/*
++	 * They have passed an invalid number. Call sys_ni_syscall staring by
++	 * load a4 with the base address of sys_ni_syscall
++	 */
++3:	moveai	a4, #%hi(sys_ni_syscall)
++	lea.1	a4, %lo(sys_ni_syscall)(a4)
++	jmpt.t	5f				; Jump to regular processing
++
++	/*
++	 * Validated syscall, load the syscall table base address into a3 and
++	 * read the syscall ptr out.
++	 */
++4:	moveai	a3, #%hi(sys_call_table)
++	lea.1	a3, %lo(sys_call_table)(a3)	; a3 = sys_call_table
++	move.4	a4, (a3, d8)			; a4 = sys_call_table[d8]
++
++	/*
++	 * Before calling the syscall, setup a5 so that syscall_exit is called
++	 * on return from syscall
++	 */
++5:	moveai	a5, #%hi(syscall_exit)		; Setup return address
++	lea.1	a5, %lo(syscall_exit)(a5)	; from system call
++
++	/*
++	 * If the syscall is __NR_rt_rigreturn then we have to test d1 to
++	 * figure out if we have to change change the return routine to restore
++	 * all registers.
++	 */
++	cmpi	d8, #__NR_rt_sigreturn
++	jmpeq.f	6f
++
++	/*
++	 * Launch system call (it will return through a5 - syscall_exit)
++	 */
++	calli	a3, 0(a4)
++
++	/*
++	 * System call is rt_sigreturn. Test d1. If it is 1 we have to
++	 * change the return address to restore_all_registers
++	 */
++6:	cmpi	d1, #1
++	jmpne.t	7f
++
++	moveai	a5, #%hi(restore_all_registers)	 ; Setup return address
++	lea.1	a5, %lo(restore_all_registers)(a5) ; to restore_all_registers.
++
++	/*
++	 * Launch system call  (it will return through a5)
++	 */
++7:	calli	a3, 0(a4)			 ; Launch system call
++
++.Lsystem_call__trace:
++	/*
++	 * Syscalls are being traced.
++	 * Call syscall_trace, (return here)
++	 */
++	moveai	a4, #%hi(syscall_trace)
++	calli	a5, %lo(syscall_trace)(a4)
++
++	/*
++	 * Restore syscall state (it would have been discarded during the
++	 * syscall trace)
++	 */
++	move.4	d0, PT_D0(sp)			; Restore d0 from kernel stack
++	move.4	d1, PT_D1(sp)			; Restore d1 from kernel stack
++	move.4	d2, PT_D2(sp)			; Restore d2 from kernel stack
++	move.4	d3, PT_D3(sp)			; Restore d3 from kernel stack
++	move.4	d4, PT_D4(sp)			; Restore d4 from kernel stack
++	move.4	d5, PT_D5(sp)			; Restore d5 from kernel stack
++	/* add this back if we ever have a syscall with 7 args */
++	move.4	d8, PT_D8(sp)			; Restore d8 from kernel stack
++
++	/*
++	 * return to syscall
++	 */
++	jmpt.t .Lsystem_call__trace_complete
++	.size system_call, . - system_call
++
++/*
++ * syscall_exit()
++ */
++	.section .syscall_exit.text
++	.global syscall_exit
++syscall_exit:
++	/*
++	 * d0 contains the return value. We should move that into the kernel
++	 * stack d0 location.  We will be transitioning from kernel to user
++	 * mode. Test the flags and see if we have to call schedule. If we are
++	 * going to truly exit then all that has to be done is that from the
++	 * kernel stack we have to restore d0, a0, a1, a2, a5, a6 and sp (a7)bb
++	 * and then return via a5.
++	 */
++
++	/*
++	 * Save d0 to pt_regs
++	 */
++	move.4	PT_D0(sp), d0			; Save d0 into the kernel stack
++
++	/*
++	 * load the thread_info structure by masking off the THREAD_SIZE
++	 * bits.
++	 *
++	 * Note: we used to push a1, but now we don't as we are going
++	 * to eventually restore it to the userspace a1.
++	 */
++	movei	d9, #(~(ASM_THREAD_SIZE-1))
++	and.4	a1, sp, d9
++
++	/*
++	 * Are any interesting bits set on TI flags, if there are jump
++	 * aside to post_processing.
++	 */
++	move.4	d9, #(_TIF_SYSCALL_TRACE | _TIF_NEED_RESCHED | _TIF_SIGPENDING)
++	and.4	#0, TI_FLAGS(a1), d9
++	jmpne.f	.Lsyscall_exit__post_processing ; jump to handler
++.Lsyscall_exit__post_processing_complete:
++
++	move.4	d0, PT_D0(sp)			; Restore D0 from kernel stack
++	move.4	d1, PT_D1(sp)			; Restore d1 from kernel stack
++	move.4	d2, PT_D2(sp)			; Restore d2 from kernel stack
++	move.4	d3, PT_D3(sp)			; Restore d3 from kernel stack
++	move.4	d4, PT_D4(sp)			; Restore d4 from kernel stack
++	move.4	d5, PT_D5(sp)			; Restore d5 from kernel stack
++	move.4	d8, PT_D8(sp)			; Restore d8 from kernel stack
++	move.4	d10, PT_D10(sp)			; Restore d10 from kernel stack
++	move.4	d11, PT_D11(sp)			; Restore d11 from kernel stack
++	move.4	d12, PT_D12(sp)			; Restore d12 from kernel stack
++	move.4	d13, PT_D13(sp)			; Restore d13 from kernel stack
++	move.4	a1, PT_A1(sp)			; Restore A1 from kernel stack
++	move.4	a2, PT_A2(sp)			; Restore A2 from kernel stack
++	move.4	a5, PT_A5(sp)			; Restore A5 from kernel stack
++	move.4	a6, PT_A6(sp)			; Restore A6 from kernel stack
++	move.4	a0, PT_A0(sp)			; Restore A6 from kernel stack
++
++	/*
++	 * this is only for debug, and could be removed for production builds
++	 */
++	move.4	PT_FRAME_TYPE(sp), #0		; invalidate frame_type
++
++#ifdef CONFIG_PROTECT_KERNEL
++	/*
++	 * Enter critical section
++	 */
++	atomic_lock_acquire
++	disable_kernel_ranges_for_current d15
++#endif
++	/*
++	 * Lastly restore userspace stack ptr
++	 *
++	 * Note: that when protection is on we need to hold the lock around the
++	 * stack swap as well because otherwise the protection could get
++	 * inadvertently disabled again at the end of a context switch.
++	 */
++	move.4	a7, PT_A7(sp)			; Restore A7 from kernel stack
++
++	/*
++	 * We are now officially back in userspace!
++	 */
++
++#ifdef CONFIG_PROTECT_KERNEL
++	/*
++	 * Leave critical section and return to user space.
++	 */
++	atomic_lock_release
++#endif
++	calli	a5, 0(a5)			; Back to userspace code.
++
++	bkpt #-1				; we will never get here
++
++	/*
++	 * Post syscall processing. (unlikely part of syscall_exit)
++	 *
++	 * Are we tracing syscalls. If TIF_SYSCALL_TRACE is set, call
++	 * syscall_trace routine and return here.
++	 */
++.Lsyscall_exit__post_processing:
++	btst	TI_FLAGS(a1), #ASM_TIF_SYSCALL_TRACE
++	jmpeq.t	1f
++	moveai	a5, #%hi(syscall_trace)
++	calli	a5, %lo(syscall_trace)(a5)
++
++	/*
++	 * Do we need to resched ie call schedule. If TIF_NEED_RESCHED is set,
++	 * call the scheduler, it will come back here.
++	 */
++1:	btst	TI_FLAGS(a1), #ASM_TIF_NEED_RESCHED
++	jmpeq.t	2f
++	moveai	a5, #%hi(schedule)
++	calli	a5, %lo(schedule)(a5)
++
++	/*
++	 * Do we need to post a signal, if TIF_SIGPENDING is set call the
++	 * do_signal.
++	 */
++2:	btst	TI_FLAGS(a1), #ASM_TIF_SIGPENDING
++	jmpeq.t	.Lsyscall_exit__post_processing_complete
++
++	/*
++	 * setup the do signal call
++	 */
++	move.4	d0, #0				; oldset pointer is NULL
++	lea.1	d1, (sp)			; d1 is the regs pointer.
++	moveai	a5, #%hi(do_signal)		; Have to call do_signal
++	calli	a5, %lo(do_signal)(a5)
++
++	jmpt.t  .Lsyscall_exit__post_processing_complete
++
++	.size syscall_exit, . - syscall_exit
++
++/*
++ * kernel_execve()
++ *	kernel_execv is called when we the kernel is starting a
++ *	userspace application.
++ */
++	.section .kernel_unprotected
++	.global kernel_execve
++kernel_execve:
++	move.4	-4(sp)++, a5			; Save return address
++	/*
++	 * Call execve
++	 */
++	movei	d8, #__NR_execve		; call execve
++	moveai	a3, #%hi(system_call)
++	calli	a5, %lo(system_call)(a3)
++	move.4	a5, (sp)4++
++
++	/*
++	 * protection was enabled again at syscall exit, but we want
++	 * to return to kernel so we enable it again.
++	 */
++#ifdef CONFIG_PROTECT_KERNEL
++	/*
++	 * We are entering the kernel so we need to disable the protection.
++	 * Enter critical section, disable ranges and leave critical section.
++	 */
++	atomic_lock_acquire			; Enter critical section
++	enable_kernel_ranges_for_current d15
++	atomic_lock_release			; Leave critical section
++#endif
++	ret a5					; jump back to the kernel
++
++	.size kernel_execve, . - kernel_execve
++
++/*
++ * signal_trampoline()
++ *
++ *	Deals with transitioning from to userspace signal handlers and returning
++ *	to userspace, only called from the kernel.
++ *
++ */
++	.section .kernel_unprotected
++	.global signal_trampoline
++signal_trampoline:
++	/*
++	 * signal_trampoline is called when we are jumping from the kernel to
++	 * the userspace signal handler.
++	 *
++	 * The following registers are relevant. (set setup_rt_frame)
++	 *   sp is the user space stack not the kernel stack
++	 *  d0 = signal number
++	 *  d1 = siginfo_t *
++	 *  d2 = ucontext *
++	 *  d3 = the user space signal handler
++	 *  a0 is set to the GOT if userspace application is FDPIC, otherwise 0
++	 *  a3 is set to the FD for the signal if userspace application is FDPIC
++	 */
++#ifdef CONFIG_PROTECT_KERNEL
++	/*
++	 * We are leaving the kernel so we need to enable the protection.
++	 * Enter critical section, disable ranges and leave critical section.
++	 */
++	atomic_lock_acquire			; Enter critical section
++	disable_kernel_ranges_for_current d15	; disable kernel ranges
++	atomic_lock_release			; Leave critical section
++#endif
++	/*
++	 * The signal handler pointer is in register d3 so tranfer it to a4 and
++	 * call it
++	 */
++	movea	a4, d3				; signal handler
++	calli	a5, 0(a4)
++
++	/*
++	 * Return to userspace through rt_syscall which is stored on top of the
++	 * stack d1 contains ret_via_interrupt status.
++	 */
++	move.4	d8, (sp)			; d8 (syscall #) = rt_syscall
++	move.4	d1, 4(sp)			; d1 = ret_via_interrupt
++	moveai	a3, #%hi(system_call)		; call system_call
++	calli	a5, %lo(system_call)(a3)
++
++	bkpt -1					; will never get here.
++	.size signal_trampoline, . - signal_trampoline
++
++/*
++ * kernel_thread_helper()
++ *
++ *	Entry point for kernel threads (only referenced by kernel_thread()).
++ *
++ *	On execution d0 will be 0, d1 will be the argument to be passed to the
++ *	kernel function.
++ *	d2 contains the kernel function that needs to get called.
++ *	d3 will contain address to do_exit which needs to get moved into a5.
++ *
++ *	On return from fork the child thread d0 will be 0. We call this dummy
++ *	function which in turn loads the argument
++ */
++	.section .kernel_unprotected
++	.global kernel_thread_helper
++kernel_thread_helper:
++	/*
++	 * Create a kernel thread. This is called from ret_from_vfork (a
++	 * userspace return routine) so we need to put it in an unprotected
++	 * section and re-enable protection before calling the vector in d2.
++	 */
++
++#ifdef CONFIG_PROTECT_KERNEL
++	/*
++	 * We are entering the kernel so we need to disable the protection.
++	 * Enter critical section, disable ranges and leave critical section.
++	 */
++	atomic_lock_acquire			; Enter critical section
++	enable_kernel_ranges_for_current d0
++	atomic_lock_release			; Leave critical section
++#endif
++	/*
++	 * Move argument for kernel function into d0, and set a5 return address
++	 * (a5) to do_exit and return through a2
++	 */
++	move.4  d0, d1				; d0 = arg
++	move.4  a5, d3				; a5 = do_exit
++	ret	d2				; call function ptr in d2
++
++	.size kernel_thread_helper, . - kernel_thread_helper
++
++/*
++ * execve_intercept()
++ */
++	.section .text
++	.global execve_intercept
++execve_intercept:
++	move.4	d3, sp	; Save retrun address
++	moveai	a3, #%hi(sys_execve)
++	calli	a3, %lo(sys_execve)(a3)
++
++	.size execve_intercept, . - execve_intercept
++
++/*
++ * vfork_intercept()
++ */
++	.section .text
++	.global vfork_intercept
++vfork_intercept:
++	move.4	d0, sp	; Save pt_regs address
++	moveai	a3, #%hi(sys_vfork)
++	calli	a3, %lo(sys_vfork)(a3)
++
++	.size vfork_intercept, . - vfork_intercept
++
++/*
++ * clone_intercept()
++ */
++	.section .text
++	.global clone_intercept
++clone_intercept:
++	move.4	d2, sp	; Save pt_regs address
++	moveai	a3, #%hi(sys_clone)
++	calli	a3, %lo(sys_clone)(a3)
++
++	.size clone_intercept, . - clone_intercept
++
++/*
++ * sys_sigsuspend()
++ */
++	.section .text
++	.global sys_sigsuspend
++sys_sigsuspend:
++	move.4	d0, sp	; Pass pointer to pt_regs in d0
++	moveai	a3, #%hi(do_sigsuspend)
++	calli	a3, %lo(do_sigsuspend)(a3)
++
++	.size sys_sigsuspend, . - sys_sigsuspend
++
++/*
++ * sys_rt_sigsuspend()
++ */
++	.section .text
++	.global sys_rt_sigsuspend
++sys_rt_sigsuspend:
++	move.4	d0, sp	; Pass pointer to pt_regs in d0
++	moveai	a3, #%hi(do_rt_sigsuspend)
++	calli	a3, %lo(do_rt_sigsuspend)(a3)
++
++	.size sys_rt_sigsuspend, . - sys_rt_sigsuspend
++
++/*
++ * sys_rt_sigreturn()
++ */
++	.section .text
++	.global sys_rt_sigreturn
++sys_rt_sigreturn:
++	move.4	d0, sp	; Pass pointer to pt_regs in d0
++	moveai	a3, #%hi(do_rt_sigreturn)
++	calli	a3, %lo(do_rt_sigreturn)(a3)
++
++	.size sys_rt_sigreturn, . - sys_rt_sigreturn
++
++/*
++ * sys_sigaltstack()
++ */
++	.section .text
++	.global sys_sigaltstack
++sys_sigaltstack:
++	move.4	d0, sp	; Pass pointer to pt_regs in d0
++	moveai	a3, #%hi(do_sys_sigaltstack)
++	calli	a3, %lo(do_sys_sigaltstack)(a3)
++
++	.size sys_sigaltstack, . - sys_sigaltstack
+--- /dev/null
++++ b/arch/ubicom32/kernel/unaligned_trap.c
+@@ -0,0 +1,698 @@
++/*
++ * arch/ubicom32/kernel/unaligned_trap.c
++ *   Handle unaligned traps in both user or kernel space.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <asm/cacheflush.h>
++#include <asm/traps.h>
++
++#define FALSE 0
++#define TRUE 1
++
++/* no possible trap */
++#define UNUSED 0
++/* possible source operand trap */
++#define SRC 1
++#define SRC_2 2
++/* possible destination operand trap */
++#define DEST 3
++#define DEST_2 4
++/* can be either source or destination or both */
++#define TWO_OP 5
++#define TWO_OP_2 6
++
++/* TODO: What is the real value here, put something in to make it compile for
++ * now */
++#define MOVE_2	0x0d
++#define LSL_2	0x11
++#define LSR_2	0x13
++#define MOVEI	0x19
++#define CMPI	0x18
++
++static int op_format[32] =
++{
++	TWO_OP,		/* 0x00 */
++	UNUSED,
++	SRC,
++	UNUSED,
++	TWO_OP,		/* 0x04 */
++	TWO_OP,
++	SRC,
++	UNUSED,
++	TWO_OP_2,	/* 0x08 */
++	TWO_OP,
++	TWO_OP_2,
++	TWO_OP,
++	TWO_OP_2,	/* 0x0C */
++	TWO_OP,
++	TWO_OP_2,
++	TWO_OP,
++	TWO_OP,		/* 0x10 */
++	TWO_OP_2,
++	TWO_OP,
++	TWO_OP,
++	UNUSED,		/* 0x14 */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	SRC_2,		/* 0x18 */
++	DEST_2,
++	UNUSED,
++	UNUSED,
++	UNUSED,		/* 0x1C */
++	UNUSED,
++	UNUSED,		/* unaligned CALLI will not be fixed. */
++	UNUSED
++};
++
++static int op_0_format[32] =
++{
++	UNUSED,		/* 0x00 */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	UNUSED,		/* 0x04 - ret don't fix - bad ret is always wrong */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	UNUSED,		/* 0x08 */
++	UNUSED,
++	TWO_OP,
++	TWO_OP_2,
++	TWO_OP,		/* 0x0c */
++	TWO_OP_2,
++	TWO_OP,
++	UNUSED,		/* .1 can't trap */
++	UNUSED,		/* 0x10 */
++	UNUSED,
++	SRC,
++	UNUSED,
++	UNUSED,		/* 0x14 */
++	TWO_OP_2,
++	UNUSED,
++	UNUSED,
++	UNUSED,		/* 0x18 */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	DEST,		/* 0x1c */
++	DEST,
++	DEST,
++	DEST,		/* all lea have 32-bit destination */
++};
++
++static int op_2_format[32] =
++{
++	UNUSED,		/* 0x00 */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	UNUSED,		/* 0x04 */
++	UNUSED,
++	SRC,
++	UNUSED,
++	UNUSED,		/* 0x08 crcgen is .1 */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	UNUSED,		/* 0x0c */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	SRC,		/* 0x10 */
++	SRC_2,
++	SRC,
++	SRC_2,
++	SRC,		/* 0x14 */
++	SRC_2,
++	SRC,
++	UNUSED,
++	UNUSED,		/* 0x18 */
++	UNUSED,
++	SRC,
++	UNUSED,
++	SRC,		/* 0x1c */
++	UNUSED,
++	SRC_2,
++	UNUSED,
++};
++
++static int op_6_format[32] =
++{
++	SRC_2,		/* 0x00 */
++	SRC_2,
++	SRC_2,
++	SRC_2,
++	SRC_2,		/* 0x04 */
++	SRC_2,
++	UNUSED,
++	SRC_2,
++	SRC,		/* 0x08 MULS.4 */
++	SRC_2,
++	SRC,
++	UNUSED,
++	UNUSED,		/* 0x0c */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	SRC,		/* 0x10 */
++	SRC_2,
++	SRC,
++	SRC_2,
++	UNUSED,		/* 0x14 */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	UNUSED,		/* 0x18 */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++	UNUSED,		/* 0x1c */
++	UNUSED,
++	UNUSED,
++	UNUSED,
++};
++
++/*
++ * unaligned_get_address()
++ *	get an address using save_an and save_dn registers, and updates save_an
++ *	with side effects
++ */
++unsigned char *unaligned_get_address(int thread, int specifier, int four_byte,
++				     unsigned int save_an[],
++				     unsigned int save_dn[], int *write_back_an)
++{
++	unsigned char *address;
++
++	int areg = (specifier >> 5) & 7;
++	if ((specifier >> 8) == 2) {
++		int offset = specifier & 0xf;
++		offset = ((offset << 28) >> 28);
++		if (likely(four_byte)) {
++			offset <<= 2;
++		} else {
++			offset <<= 1;
++		}
++		if (specifier & 0x10) {
++			address = (unsigned char *)(save_an[areg] + offset);
++		} else {
++			address = (unsigned char *)save_an[areg];
++		}
++		save_an[areg] = save_an[areg] + offset;
++
++		/*
++		 * Let caller know An registers have been modified.
++		 */
++		*write_back_an = 1;
++	} else if ((specifier >> 8) == 3) {
++		int dreg = specifier & 0xf;
++		if (likely(four_byte)) {
++			address = (unsigned char *)(save_an[areg] +
++						    (save_dn[dreg] << 2));
++		} else {
++			address = (unsigned char *)(save_an[areg] +
++						    (save_dn[dreg] << 1));
++		}
++	} else {
++		int offset = ((specifier >> 3) & 0x60) | (specifier & 0x1f);
++		if (likely(four_byte)) {
++			address = (unsigned char *)(save_an[areg] +
++						    (offset << 2));
++		} else {
++			address = (unsigned char *)(save_an[areg] +
++						    (offset << 1));
++		}
++	}
++
++	return address;
++}
++
++static	int save_dn[16];
++static	int save_an[8];
++static	int save_acc[5];
++
++/*
++ * unaligned_emulate()
++ *	emulate the instruction at thread's pc that has taken an unaligned data
++ *	trap.
++ *
++ * source or destination or both might be unaligned
++ * the instruction must have a memory source or destination or both
++ * the emulated instruction is copied and executed in this thread
++ *
++ *	TODO: Protection is handled outside of this function
++ *	TODO: handling simultaneous unaligned and memory protection traps
++ *
++ *	Get thread state
++ *		the PC and instruction (and local copy, emulate_inst), and An
++ *		and Dn registers
++ *		All implicit soruce state (source3, CSR, accumulators)
++
++ *	if the instruction has a memory source
++ *		Use the instruction, An and Dn registers to form src_address
++ *		get unaligned source data from src_address (usually sign
++ *		extended)
++ *			(2 bytes, with or without sign extension, or 4 bytes)
++ *		modify emulate_inst to use d0 as source
++ *	else
++ *		get the soure operand from one of thread's registers
++ *	if instruction has a memory destination
++ *		Use the instruction, An and Dn registers to form dest_address
++ *		modify emulate_inst to use d0 as destination
++ *	if there was a memory source
++ *		put the source data in thread's d0
++ *	get the source-2 Dn operand and source 3 operand from thread
++ *	execute modified inst
++ *		(save it, flush caches, set up local values for implicit
++ *		sources, execute, save explicit and implicit results)
++ *	if inst has destination address
++ *		copy result to dest_address, possibly unaligned, 1, 2, or 4
++ *		bytes
++ *	restore thread's implicit results (modified address registers, CSR,
++ *	accumulators) add 4 to thread's pc
++ */
++void unaligned_emulate(unsigned int thread)
++{
++	unsigned int pc;
++	unsigned int inst;
++	unsigned int op;
++	unsigned int subop;
++	int format;
++	unsigned int emulate_inst;
++	int four_byte;
++	int src_operand, dest_operand;
++	int save_csr;
++	int source3;
++	unsigned int source1;
++	unsigned int source_data;
++	unsigned char *dest_address = NULL;
++	int source2 = 0;
++	unsigned int result;
++	unsigned int write_back_an = 0;
++	unsigned int chip_id_copy;
++
++	extern unsigned int trap_emulate;
++	extern unsigned int ubicom32_emulate_insn(int source1, int source2,
++						  int source3, int *save_acc,
++						  int *save_csr);
++
++	/*
++	 * get the chip_id
++	 */
++	asm volatile (
++	"	move.4		%0, chip_id		\n\t" /* get chip_id. */
++		: "=r"(chip_id_copy)
++		:
++	);
++
++	/*
++	 * get the pc
++	 */
++	asm volatile (
++	"	move.4		CSR, %1		\n\t" /* set source thread in
++						       * CSR */
++	"	setcsr_flush	0		\n\t"
++	"	move.4		%0, pc		\n\t"
++	"	move.4		CSR, #0		\n\t" /* restore CSR */
++	"	setcsr_flush	0		\n\t"
++		: "=a"(pc)
++		: "d" ((1 << 8) | (thread << 9))
++		: "cc"
++	);
++
++	inst = *((unsigned int *)pc);
++	op = inst >> 27;
++	if (unlikely(op == 2 || op == 6)) {
++		subop = (inst >> 21) & 0x1f;
++	} else {
++		subop = (inst >> 11) & 0x1f;
++	}
++	format = op_format[op];
++	emulate_inst = inst;
++
++	if (op == 0) {
++		format = op_0_format[subop];
++	} else if (op == 2) {
++		format = op_2_format[subop];
++	} else if (op == 6) {
++		format = op_6_format[subop];
++	}
++
++	if (unlikely(format == UNUSED)) {
++		/*
++		 * We are not going to emulate this. Bump PC by 4 and move on.
++		 */
++		asm volatile (
++		"	move.4		CSR, %0			\n\t"
++		"	setcsr_flush	0			\n\t"
++		"	move.4		pc, %1			\n\t"
++		"	setcsr		#0			\n\t"
++		"	setcsr_flush	0			\n\t"
++			:
++			: "d"((1 << 14) | (thread << 15)), "d"(pc + 4)
++			: "cc"
++		);
++		return;
++	}
++
++	four_byte = (format == TWO_OP || format == DEST || format == SRC);
++
++	/*
++	 * source or destination memory operand needs emulation
++	 */
++	src_operand = (format == SRC ||
++		       format == SRC_2 ||
++		       format == TWO_OP ||
++		       format == TWO_OP_2) &&
++		((inst >> 8) & 7) > 1;
++
++	dest_operand = (format == DEST ||
++			format == DEST_2 ||
++			format == TWO_OP ||
++			format == TWO_OP_2) &&
++		((inst >> 24) & 7) > 1;
++
++	/*
++	 * get thread's implicit sources (not covered by source context select).
++	 * data and address registers and CSR (for flag bits) and src3 and
++	 * accumulators
++	 */
++	asm volatile (
++	"	move.4		CSR, %2		\n\t"	/* set source thread in
++							 * CSR */
++	"	setcsr_flush	0		\n\t"
++	"	move.4		(%3), d0	\n\t"	/* get dn registers */
++	"	move.4		4(%3), d1	\n\t"
++	"	move.4		8(%3), d2	\n\t"
++	"	move.4		12(%3), d3	\n\t"
++	"	move.4		16(%3), d4	\n\t"
++	"	move.4		20(%3), d5	\n\t"
++	"	move.4		24(%3), d6	\n\t"
++	"	move.4		28(%3), d7	\n\t"
++	"	move.4		32(%3), d8	\n\t"
++	"	move.4		36(%3), d9	\n\t"
++	"	move.4		40(%3), d10	\n\t"
++	"	move.4		44(%3), d11	\n\t"
++	"	move.4		48(%3), d12	\n\t"
++	"	move.4		52(%3), d13	\n\t"
++	"	move.4		56(%3), d14	\n\t"
++	"	move.4		60(%3), d15	\n\t"
++	"	move.4		(%4), a0	\n\t"	/* get an registers */
++	"	move.4		4(%4), a1	\n\t"
++	"	move.4		8(%4), a2	\n\t"
++	"	move.4		12(%4), a3	\n\t"
++	"	move.4		16(%4), a4	\n\t"
++	"	move.4		20(%4), a5	\n\t"
++	"	move.4		24(%4), a6	\n\t"
++	"	move.4		28(%4), a7	\n\t"
++	"	move.4		%0, CSR		\n\t"	/* get csr and source3
++							 * implicit operands */
++	"	move.4		%1, source3	\n\t"
++	"	move.4		(%5), acc0_lo	\n\t"	/* get accumulators */
++	"	move.4		4(%5), acc0_hi	\n\t"
++	"	move.4		8(%5), acc1_lo	\n\t"
++	"	move.4		12(%5), acc1_hi	\n\t"
++	"	move.4		16(%5), mac_rc16	\n\t"
++	"	move.4		CSR, #0		\n\t"	/* restore CSR */
++	"	setcsr_flush	0		\n\t"
++		: "=m"(save_csr), "=m"(source3)
++		: "d"((1 << 8) | (thread << 9)),
++		  "a"(save_dn), "a"(save_an), "a"(save_acc)
++		: "cc"
++	);
++
++	/*
++	 * turn off thread select bits if they were on
++	 */
++	BUG_ON((save_csr & 0x04100) != 0);
++	if (unlikely(save_csr & 0x04100)) {
++		/*
++		 * Things are in funny state as thread select bits are on in
++		 * csr. PANIC.
++		 */
++		panic("In unaligned trap handler. Trap thread CSR has thread "
++		      "select bits on.\n");
++	}
++
++	save_csr = save_csr & 0x1000ff;
++
++	/*
++	 * get the source1 operand
++	 */
++	source1 = 0;
++	if (src_operand) {
++		unsigned char *src_address;
++
++		/*
++		 * source1 comes from memory
++		 */
++		BUG_ON(!(format == TWO_OP || format == TWO_OP_2 ||
++			 format == SRC || format == SRC_2));
++		src_address = unaligned_get_address(thread, inst & 0x7ff,
++						    four_byte, save_an,
++						    save_dn, &write_back_an);
++
++		/*
++		 * get data (possibly unaligned)
++		 */
++		if (likely(four_byte)) {
++			source_data = (*src_address << 24) |
++				(*(src_address + 1) << 16) |
++				(*(src_address + 2) << 8) |
++				*(src_address + 3);
++			source1 = source_data;
++		} else {
++			source1 = *src_address << 8 |
++				*(src_address + 1);
++
++			/*
++			 * Source is not extended if the instrution is MOVE.2 or
++			 * if the cpu CHIP_ID >= 0x30000 and the instruction is
++			 * either LSL.2 or LSR.2.  All other cases have to be
++			 * sign extended.
++			 */
++			if ((!(op == 2 && subop == MOVE_2)) &&
++			    (!((chip_id_copy >= 0x30000) &&
++			       (subop == LSL_2 || subop == LSR_2)))) {
++				/*
++				 * Have to sign extend the .2 entry.
++				 */
++				source1 = ((unsigned int)
++					   ((signed int)
++					    ((signed short) source1)));
++			}
++		}
++	} else if (likely(op != MOVEI)) {
++		/*
++		 * source1 comes from a register, using move.4 d0, src1
++		 * unaligned_emulate_get_source is pointer to code to insert remulated instruction
++		 */
++		extern unsigned int unaligned_emulate_get_src;
++		*((int *)&unaligned_emulate_get_src) &= ~(0x7ff);
++		*((int *)&unaligned_emulate_get_src) |= (inst & 0x7ff);
++		flush_dcache_range((unsigned long)(&unaligned_emulate_get_src),
++				   (unsigned long)(&unaligned_emulate_get_src) + 4);
++
++		asm volatile (
++			/* source1 uses thread's registers */
++		"	move.4		CSR, %1			\n\t"
++		"	setcsr_flush 0				\n\t"
++		"unaligned_emulate_get_src:			\n\t"
++		"	move.4	%0, #0				\n\t"
++		"	setcsr		#0			\n\t"
++		"	setcsr_flush	0			\n\t"
++			: "=d" (source1)
++			: "d" ((1 << 8) | (thread << 9))
++			: "cc"
++		);
++	}
++
++	/*
++	 * get the destination address
++	 */
++	if (dest_operand) {
++		BUG_ON(!(format == TWO_OP || format == TWO_OP_2 ||
++			 format == DEST || format == DEST_2));
++		dest_address = unaligned_get_address(thread,
++						     ((inst >> 16) & 0x7ff),
++						     four_byte, save_an,
++						     save_dn, &write_back_an);
++	}
++
++	if (write_back_an) {
++		/*
++		 * restore any modified An registers
++		 */
++		asm volatile (
++		"	move.4		CSR, %0			\n\t"
++		"	setcsr_flush	0			\n\t"
++		"	move.4		a0, (%1)		\n\t"
++		"	move.4		a1, 4(%1)		\n\t"
++		"	move.4		a2, 8(%1)		\n\t"
++		"	move.4		a3, 12(%1)		\n\t"
++		"	move.4		a4, 16(%1)		\n\t"
++		"	move.4		a5, 20(%1)		\n\t"
++		"	move.4		a6, 24(%1)		\n\t"
++		"	move.4		a7, 28(%1)		\n\t"
++		"	setcsr		#0			\n\t"
++		"	setcsr_flush	0			\n\t"
++			:
++			: "d" ((1 << 14) | (thread << 15)), "a" (save_an)
++			: "cc"
++		);
++	}
++
++	/*
++	 * get source 2 register if needed, and modify inst to use d1 for
++	 * source-2 source-2 will come from this thread, not the trapping thread
++	 */
++	source2 = 0;
++	if ((op >= 8 && op <= 0x17) ||
++	    ((op == 2 || op == 6) && (inst & 0x4000000))) {
++		int src_dn = (inst >> 11) & 0xf;
++		source2 = save_dn[src_dn];
++		/*
++		 * force the emulated instruction to use d1 for source2 operand
++		 */
++		emulate_inst = (emulate_inst & 0xffff07ff) | 0x800;
++	}
++
++	if (likely(op != MOVEI)) {
++		/*
++		 * change emulated instruction source1 to d0
++		 */
++		emulate_inst &= ~0x7ff;
++		emulate_inst |= 1 << 8;
++	}
++
++	if (unlikely(op == 6 || op == 2)) {
++		/*
++		 * Set destination to d0
++		 */
++		emulate_inst &= ~(0xf << 16);
++	} else if (likely(op != CMPI)) {
++		/*
++		 * Set general destination field to d0.
++		 */
++		emulate_inst &= ~(0x7ff << 16);
++		emulate_inst |= 1 << 24;
++	}
++
++	/*
++	 * execute emulated instruction d0, to d0, no memory access
++	 * source2 if needed will be in d1
++	 * source3, CSR, and accumulators are set up before execution
++	 */
++	*((unsigned int *)&trap_emulate) = emulate_inst;
++	flush_dcache_range((unsigned long)(&trap_emulate),
++			   (unsigned long)(&trap_emulate) + 4);
++
++	result = ubicom32_emulate_insn(source1, source2, source3,
++				       save_acc, &save_csr);
++
++	/*
++	 * set the result value
++	 */
++	if (dest_operand) {
++		/*
++		 * copy result to memory
++		 */
++		if (four_byte) {
++			*dest_address++ =
++				(unsigned char)((result >> 24) & 0xff);
++			*dest_address++ =
++				(unsigned char)((result >> 16) & 0xff);
++		}
++		*dest_address++ = (unsigned char)((result >> 8) & 0xff);
++		*dest_address = (unsigned char)(result & 0xff);
++	} else if (likely(op != CMPI)) {
++		/*
++		 * copy result to a register, using move.4 dest, result
++		 */
++		extern unsigned int unaligned_trap_set_result;
++		*((unsigned int *)&unaligned_trap_set_result) &= ~0x7ff0000;
++
++		if (op == 2 || op == 6) {
++			*((unsigned int *)&unaligned_trap_set_result) |=
++				((inst & 0x000f0000) | 0x01000000);
++		} else {
++			*((unsigned int *)&unaligned_trap_set_result) |=
++				(inst & 0x7ff0000);
++		}
++		flush_dcache_range((unsigned long)&unaligned_trap_set_result,
++				   ((unsigned long)(&unaligned_trap_set_result) + 4));
++
++		asm volatile (
++			/* result uses thread's registers */
++		"	move.4		CSR, %1			\n\t"
++		"	setcsr_flush 0				\n\t"
++		"unaligned_trap_set_result:			\n\t"
++		"	move.4 #0, %0				\n\t"
++		"	setcsr		#0			\n\t"
++		"	setcsr_flush	0			\n\t"
++			:
++			: "d"(result), "d" ((1 << 14) | (thread << 15))
++			: "cc"
++		);
++	}
++
++	/*
++	 * bump PC in thread and restore implicit register changes
++	 */
++	asm volatile (
++	"	move.4		CSR, %0			\n\t"
++	"	setcsr_flush	0			\n\t"
++	"	move.4		pc, %1			\n\t"
++	"	move.4		acc0_lo, (%3)		\n\t"
++	"	move.4		acc0_hi, 4(%3)		\n\t"
++	"	move.4		acc1_lo, 8(%3)		\n\t"
++	"	move.4		acc1_hi, 12(%3)		\n\t"
++	"	move.4		mac_rc16, 16(%3)	\n\t"
++	"	move.4		CSR, %2			\n\t"
++	"	setcsr		#0			\n\t"
++	"	setcsr_flush	0			\n\t"
++		:
++		: "d"((1 << 14) | (thread << 15)),
++		  "d"(pc + 4), "d"(save_csr), "a"(save_acc)
++		: "cc"
++	);
++}
++
++/*
++ * unaligned_only()
++ *	Return true if either of the unaligned causes are set (and no others).
++ */
++int unaligned_only(unsigned int cause)
++{
++	unsigned int unaligned_cause_mask =
++		(1 << TRAP_CAUSE_DST_MISALIGNED) |
++		(1 << TRAP_CAUSE_SRC1_MISALIGNED);
++
++	BUG_ON(cause == 0);
++	return (cause & unaligned_cause_mask) == cause;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/vmlinux.lds.S
+@@ -0,0 +1,303 @@
++/*
++ * arch/ubicom32/kernel/vmlinux.lds.S
++ *	vmlinux primary linker script
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <asm-generic/vmlinux.lds.h>
++#include <asm/ocm_size.h>
++#include <asm/thread_info.h>
++#include <linux/threads.h>
++
++/*
++ * Sanity checks to prevent errors later on that are much harder to understand
++ */
++#if !defined APP_OCM_CODE_SIZE
++#error APP_OCM_CODE_SIZE has not been defined in ocm_size.h
++#endif
++
++#if !defined APP_OCM_DATA_SIZE
++#error APP_OCM_DATA_SIZE has not been defined in ocm_size.h
++#endif
++
++/*
++ * XXX Should get these from a common header file, but <asm/ip5000.h> is a mess
++ * and can't be included by anything other than C code at the moment.
++ */
++/*
++ * Memory Size
++ */
++#define OCM_SECTOR_SIZE 0x00008000              /* 32K */
++
++#if defined(CONFIG_UBICOM32_V3)
++#define OCMSIZE         0x00030000              /* 192K on-chip RAM for both program and data */
++#elif defined(CONFIG_UBICOM32_V4)
++#define OCMSIZE         0x0003C000              /* 240K on-chip RAM for both program and data */
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++#define OCMSTART        0x3ffc0000              /* alias from 0x03000000 for easy jump to/from SDRAM */
++#define OCMEND          (OCMSTART + OCMSIZE)
++
++/*
++ * The `free' ocm area that ultra does not use.
++ */
++#if APP_OCM_CODE_SIZE || APP_OCM_DATA_SIZE
++#define OCM_FREE_START	(OCMSTART + APP_OCM_CODE_SIZE)
++#define OCM_FREE_LENGTH	(OCMSIZE - APP_OCM_CODE_SIZE - APP_OCM_DATA_SIZE)
++#else
++#define OCM_FREE_START OCMEND
++#define OCM_FREE_LENGTH 0
++#endif
++/*
++ * If you want to limit OCM use for text/data or completely disable it you can change these values.
++ */
++#define OCM_TEXT_LENGTH	OCM_FREE_LENGTH
++#define OCM_DATA_LENGTH	OCM_FREE_LENGTH
++
++#define	RAM_START	CONFIG_KERNELBASE
++#define	RAM_LENGTH	(CONFIG_RAMBASE + CONFIG_RAMSIZE - CONFIG_KERNELBASE)
++#define	TEXT		ram
++#define	DATA		ram
++#define	INIT		ram
++#define	BSS		ram
++
++#ifndef DATA_ADDR
++#define	DATA_ADDR
++#endif
++
++OUTPUT_ARCH(ubicom32)
++ENTRY(_start)
++
++MEMORY {
++	ram		: ORIGIN = RAM_START, LENGTH = RAM_LENGTH
++	ocm		: ORIGIN = OCM_FREE_START, LENGTH = OCM_FREE_LENGTH
++}
++
++jiffies = jiffies_64 + 4;
++
++/*
++ * Fixed locations required by gdb coredumps.
++ *
++ * Note that the names are what gdb is expecting so renaming will break
++ * the toolchain.
++ */
++__ocm_begin		= OCMSTART;
++__ocm_limit		= __ocm_begin + OCMSIZE;
++__sdram_begin		= CONFIG_RAMBASE;
++__sdram_limit		= __sdram_begin + CONFIG_RAMSIZE;
++__filemedia_begin_addr	= 0x60000000;
++__filemedia_end_addr	= __filemedia_begin_addr + 0x00800000;
++
++SECTIONS {
++
++	.fixed_text : {
++		_begin = .;
++		*(.skip_syscall)
++		*(.syscall_entry.text)
++		*(.syscall_exit.text)
++		*(.ret_from_interrupt_to_user.text)
++		*(.ret_from_fork.text)
++		*(.kernel_unprotected)
++		__fixed_text_end = .;
++	} > TEXT
++	. = _begin + SIZEOF(.fixed_text) ;
++
++	__ocm_text_load_begin = .;
++	__ocm_text_run_begin = OCM_FREE_START ;
++	.ocm_text __ocm_text_run_begin : AT(__ocm_text_load_begin) {
++#if OCM_TEXT_LENGTH
++		*(.ocm_text)
++		*(.sched.text)
++		*(.spinlock.text)
++#include <asm/ocm_text.lds.inc>
++		. = ALIGN(4);
++#endif
++		__ocm_text_run_end = .;
++		__data_begin = ALIGN(OCM_SECTOR_SIZE);
++	} > ocm /* .ocm_text */
++
++	.ocm_module_text __ocm_text_run_end (NOLOAD) : AT(__ocm_text_run_end) {
++		__ocm_inst_heap_begin = .;
++		/* Reserve the min requested */
++		. += (CONFIG_OCM_MODULES_RESERVATION) * 1024;
++#ifdef CONFIG_OCM_MODULES_MAY_CONSUME_REMAINING_CODESPACE
++		/* Round up to OCM sector size (we cannot use it for data) */
++		. = ALIGN(OCM_SECTOR_SIZE);
++#endif
++		__ocm_inst_heap_end = .;
++		/* update __data_begin */
++		__data_begin = ALIGN(OCM_SECTOR_SIZE);
++	} > ocm  /* .ocm_module_text */
++
++	. = __ocm_text_load_begin + __ocm_text_run_end - __ocm_text_run_begin ;
++	__ocm_text_load_end = .;
++
++	__ocm_data_load_begin = .;
++	__ocm_data_run_begin = __data_begin ;
++#if OCM_DATA_LENGTH
++	.ocm_data __ocm_data_run_begin : AT(__ocm_data_load_begin) {
++#if defined(CONFIG_IRQSTACKS_USEOCM)
++		percpu_irq_stacks = .;
++		. += NR_CPUS * THREAD_SIZE;
++#endif
++		*(.ocm_data)
++		. = ALIGN(4) ;
++		__ocm_data_run_end = .;
++	} > ocm
++	. = __ocm_data_load_begin + __ocm_data_run_end - __ocm_data_run_begin ;
++#else
++	__ocm_data_run_end = __ocm_data_run_begin;
++#endif
++	__ocm_data_load_end = .;
++
++	__ocm_free_begin = __ocm_data_run_end;
++	__ocm_free_end = OCM_FREE_START + OCM_FREE_LENGTH;
++
++	.text __ocm_data_load_end : AT(__ocm_data_load_end) {
++		. = ALIGN(4);
++		_stext = .;
++		_text = .;
++		TEXT_TEXT
++		SCHED_TEXT
++		LOCK_TEXT
++		*(.text.lock)
++		*(.text.__libgcc_udivmodsi)
++		*(.text.__libgcc_divmodsi)
++		*(.text.__libgcc_muldi3)
++		*(.text.__libgcc_udivmoddi)
++		*(.text.__libgcc_divmoddi)
++		*(.text.*)
++#if OCM_TEXT_LENGTH == 0
++		*(.ocm_text)
++		*(.sched.text)
++		*(.spinlock.text)
++#endif
++		. = ALIGN(16);          /* Exception table              */
++		__start___ex_table = .;
++		*(__ex_table)
++		__stop___ex_table = .;
++
++	} > TEXT
++
++	RO_DATA(16)
++
++	.rodata : {} > TEXT
++	.rodata1 : {} > TEXT
++	.pci_fixup : {} > TEXT
++	.builtin_fw : {} > TEXT
++	.rio_route : {} > TEXT
++	.tracedata : {} > TEXT
++	__ksymtab : {} > TEXT
++	__ksymtab_gpl : {} > TEXT
++	__ksymtab_gpl_future : {} > TEXT
++	__kcrctab_gpl : {} > TEXT
++	__kcrctab_unused : {} > TEXT
++	__kcrctab_unused_gpl : {} > TEXT
++	__kcrctab_gpl_future : {} > TEXT
++	__ksymtab_strings : {} > TEXT
++	__init_rodata : {} > TEXT
++	__param : {} > TEXT
++
++	_etext = .;
++
++	.data DATA_ADDR : {
++		. = ALIGN(4);
++		_sdata = . ;
++		DATA_DATA
++#if OCM_DATA_LENGTH == 0
++		*(.ocm_data)
++#endif
++		. = ALIGN(8192) ;
++		_data_protection_end = .;
++		*(.data.init_task)
++		. = ALIGN(4);
++		_edata = . ;
++	} > DATA
++
++	.init : {
++		. = ALIGN(4096);
++		__init_begin = .;
++		_sinittext = .;
++		INIT_TEXT
++		_einittext = .;
++		*(.init.rodata)
++		INIT_DATA
++		. = ALIGN(16);
++		__setup_start = .;
++		*(.init.setup)
++		__setup_end = .;
++		__initcall_start = .;
++		INITCALLS
++		__initcall_end = .;
++		__con_initcall_start = .;
++		*(.con_initcall.init)
++		__con_initcall_end = .;
++		___security_initcall_start = .;
++		*(.security_initcall.init)
++		___security_initcall_end = .;
++#ifdef CONFIG_BLK_DEV_INITRD
++		. = ALIGN(4);
++		__initramfs_start = .;
++		*(.init.ramfs)
++		__initramfs_end = .;
++#endif
++		. = ALIGN(4096);
++		__per_cpu_start = .;
++			*(.data.percpu)
++			*(.data.percpu.shared_aligned)
++		__per_cpu_end = .;
++
++		. = ALIGN(4096);
++		__init_end = .;
++	} > INIT
++
++	  .eh_frame   :
++	  {
++	    PROVIDE (___eh_frame_begin = .);
++	    *(.eh_frame)
++	    LONG (0);
++	    PROVIDE (___eh_frame_end = .);
++	  } > INIT
++
++	.bss : {
++		. = ALIGN(4);
++		_sbss = . ;
++		*(.bss)
++		*(COMMON)
++		. = ALIGN(4) ;
++		_ebss = . ;
++		_end = . ;
++	} > BSS
++
++	/DISCARD/ : {
++		EXIT_TEXT
++		EXIT_DATA
++		*(.exitcall.exit)
++	}
++
++	NOTES > BSS
++
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/checksum.c
+@@ -0,0 +1,250 @@
++/*
++ * arch/ubicom32/lib/checksum.c
++ *   Optimized checksum utilities for IP.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++/*
++ * INET		An implementation of the TCP/IP protocol suite for the LINUX
++ *		operating system.  INET is implemented using the  BSD Socket
++ *		interface as the means of communication with the user level.
++ *
++ *		IP/TCP/UDP checksumming routines
++ *
++ * Authors:	Jorge Cwik, <jorge@laser.satlink.net>
++ *		Arnt Gulbrandsen, <agulbra@nvg.unit.no>
++ *		Tom May, <ftom@netcom.com>
++ *		Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
++ *		Lots of code moved from tcp.c and ip.c; see those files
++ *		for more names.
++ *
++ * 03/02/96	Jes Sorensen, Andreas Schwab, Roman Hodek:
++ *		Fixed some nasty bugs, causing some horrible crashes.
++ *		A: At some points, the sum (%0) was used as
++ *		length-counter instead of the length counter
++ *		(%1). Thanks to Roman Hodek for pointing this out.
++ *		B: GCC seems to mess up if one uses too many
++ *		data-registers to hold input values and one tries to
++ *		specify d0 and d1 as scratch registers. Letting gcc choose these
++ *		registers itself solves the problem.
++ *
++ *		This program is free software; you can redistribute it and/or
++ *		modify it under the terms of the GNU General Public License
++ *		as published by the Free Software Foundation; either version
++ *		2 of the License, or (at your option) any later version.
++ */
++
++/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access kills, so most
++   of the assembly has to go. */
++
++#include <linux/module.h>
++#include <net/checksum.h>
++
++static unsigned long do_csum(const unsigned char * buff, int len)
++{
++	int count;
++	unsigned long result = 0;
++
++	/*
++	 * The following optimized assembly code cannot handle data length less than 7 bytes!
++	 */
++	if (likely(len >= 7)) {
++		len -= (4 - (int)buff) & 3;
++		count = len >> 2;
++		asm (
++		"	sub.4		d15, #0, %2		\n\t"	// set up for jump table
++		"	and.4		d15, #(32-1), d15	\n\t"	// d15 = (-m) & (32 - 1)
++
++		"	bfextu		d14, %0, #2		\n\t"	// test 2 LSB of buff
++		"	jmpne.w.f	100f			\n\t"
++		"	add.4		%1, #0, %1		\n\t"	// clear C
++		"	moveai		a3, #%%hi(1f)		\n\t"	// table jump
++		"	lea.1		a3, %%lo(1f)(a3)	\n\t"
++		"	lea.4		a3, (a3,d15)		\n\t"
++		"	calli		a3, 0(a3)		\n\t"
++
++		"100:	sub.4		%0, %0, d14		\n\t"
++		"	sub.4		d14, #4, d14		\n\t"
++		"	lsl.4		d14, d14, #3		\n\t"
++		"	add.4		%1, #0, %1		\n\t"	// clear C
++		"	moveai		a3, #%%hi(1f)		\n\t"	// table jump
++		"	lea.1		a3, %%lo(1f)(a3)	\n\t"
++		"	lea.4		a3, (a3,d15)		\n\t"
++		"	bfextu		%1, (%0)4++, d14	\n\t"	// read first partial word
++		"	calli		a3, 0(a3)		\n\t"
++#if 1
++		"200:	lsl.4		%3, %3, #3		\n\t"
++		"	bfrvrs		d15, (%0), #0		\n\t"	// read last word (partial)
++		"	bfextu		d15, d15, %3		\n\t"
++		"	bfrvrs		d15, d15, #0		\n\t"
++		"	add.4		%1, d15, %1		\n\t"
++		"	addc		%1, #0, %1		\n\t"	// sample C again
++		"	jmpt.w.t	2f			\n\t"
++#else
++		"200:	move.1		d15, 0(%0)		\n\t"
++		"	lsl.4		d15, d15, #8		\n\t"
++		"	add.4		%1, d15, %1		\n\t"
++		"	addc		%1, #0, %1		\n\t"	// sample C again
++		"	add.4		%3, #-1, %3		\n\t"
++		"	jmpeq.w.t	2f			\n\t"
++
++		"	move.1		d15, 1(%0)		\n\t"
++		"	add.4		%1, d15, %1		\n\t"
++		"	addc		%1, #0, %1		\n\t"	// sample C again
++		"	add.4		%3, #-1, %3		\n\t"
++		"	jmpeq.w.t	2f			\n\t"
++
++		"	move.1		d15, 2(%0)		\n\t"
++		"	lsl.4		d15, d15, #8		\n\t"
++		"	add.4		%1, d15, %1		\n\t"
++		"	addc		%1, #0, %1		\n\t"	// sample C again
++		"	jmpt.w.t	2f			\n\t"
++#endif
++#if defined(IP7000) || defined(IP7000_REV2)
++		"300:	swapb.2		%1, %1			\n\t"
++#else
++		"300:	shmrg.2		%1, %1, %1		\n\t"
++		"	lsr.4		%1, %1, #8		\n\t"
++		"	bfextu		%1, %1, #16		\n\t"
++#endif
++		"	jmpt.w.t	3f			\n\t"
++
++		"1:	add.4		%1, (%0)4++, %1		\n\t"	// first add without C
++		"	.rept		31			\n\t"
++		"	addc		%1, (%0)4++, %1		\n\t"
++		"	.endr					\n\t"
++		"	addc		%1, #0, %1		\n\t"	// sample C again
++		"	add.4		%2, #-32, %2		\n\t"
++		"	jmpgt.w.t	1b			\n\t"
++
++		"	and.4		%3, #3, %3		\n\t"	// check n
++		"	jmpne.w.f	200b			\n\t"
++
++		"2:	.rept		2			\n\t"
++		"	lsr.4		d15, %1, #16		\n\t"
++		"	bfextu		%1, %1, #16		\n\t"
++		"	add.4		%1, d15, %1		\n\t"
++		"	.endr					\n\t"
++		"	btst		d14, #3			\n\t"	// start from odd address (<< 3)?
++		"	jmpne.w.f	300b			\n\t"
++		"3:						\n\t"
++
++			: "+a"(buff), "+d"(result), "+d"(count), "+d"(len)
++			:
++			: "d15", "d14", "a3", "cc"
++		);
++
++		return result;
++	}
++
++	/*
++	 * handle a few bytes and fold result into 16-bit
++	 */
++	while (len-- > 0) {
++		result += (*buff++ << 8);
++		if (len) {
++			result += *buff++;
++			len--;
++		}
++	}
++	asm (
++	"	.rept		2			\n\t"
++	"	lsr.4		d15, %0, #16		\n\t"
++	"	bfextu		%0, %0, #16		\n\t"
++	"	add.4		%0, d15, %0		\n\t"
++	"	.endr					\n\t"
++		: "+d" (result)
++		:
++		: "d15", "cc"
++	);
++
++	return result;
++}
++
++/*
++ *	This is a version of ip_compute_csum() optimized for IP headers,
++ *	which always checksum on 4 octet boundaries.
++ */
++__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
++{
++	return (__force __sum16)~do_csum(iph,ihl*4);
++}
++
++/*
++ * computes the checksum of a memory block at buff, length len,
++ * and adds in "sum" (32-bit)
++ *
++ * returns a 32-bit number suitable for feeding into itself
++ * or csum_tcpudp_magic
++ *
++ * this function must be called with even lengths, except
++ * for the last fragment, which may be odd
++ *
++ * it's best to have buff aligned on a 32-bit boundary
++ */
++__wsum csum_partial(const void *buff, int len, __wsum sum)
++{
++	unsigned int result = do_csum(buff, len);
++
++	/* add in old sum, and carry.. */
++	result += (__force u32)sum;
++	if ((__force u32)sum > result)
++		result += 1;
++	return (__force __wsum)result;
++}
++
++EXPORT_SYMBOL(csum_partial);
++
++/*
++ * this routine is used for miscellaneous IP-like checksums, mainly
++ * in icmp.c
++ */
++__sum16 ip_compute_csum(const void *buff, int len)
++{
++	return (__force __sum16)~do_csum(buff,len);
++}
++
++/*
++ * copy from fs while checksumming, otherwise like csum_partial
++ */
++
++__wsum
++csum_partial_copy_from_user(const void __user *src, void *dst,
++			    int len, __wsum sum, int *csum_err)
++{
++	if (csum_err) *csum_err = 0;
++	memcpy(dst, (__force const void *)src, len);
++	return csum_partial(dst, len, sum);
++}
++
++/*
++ * copy from ds while checksumming, otherwise like csum_partial
++ */
++
++__wsum
++csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
++{
++	memcpy(dst, src, len);
++	return csum_partial(dst, len, sum);
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/delay.c
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/lib/delay.c
++ *   Ubicom32 implementation of udelay()
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <asm/param.h>
++#include <asm/delay.h>
++#include <asm/ip5000.h>
++
++/*
++ * read_current_timer()
++ *	Return the current value of sysval.
++ */
++int __devinit read_current_timer(unsigned long *timer_val)
++{
++	*timer_val = (long)(UBICOM32_IO_TIMER->sysval);
++	return 0;
++}
++
++
++void udelay(unsigned long usecs)
++{
++	_udelay(usecs);
++}
++EXPORT_SYMBOL(udelay);
+--- /dev/null
++++ b/arch/ubicom32/lib/Makefile
+@@ -0,0 +1,32 @@
++#
++# arch/ubicom32/lib/Makefile
++#	<TODO: Replace with short file description>
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not, 
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++#
++# Makefile for m68knommu specific library files..
++#
++
++lib-y	:= checksum.o delay.o mem_ubicom32.o muldi3.o lshrdi3.o ashldi3.o ashrdi3.o divmod.o
+--- /dev/null
++++ b/arch/ubicom32/lib/mem_ubicom32.c
+@@ -0,0 +1,242 @@
++/*
++ * arch/ubicom32/lib/mem_ubicom32.c
++ *   String functions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/compiler.h>
++
++#define LIKELY likely
++#define UNLIKELY unlikely
++
++typedef u32_t addr_t;
++
++/*
++ * memcpy()
++ */
++void *memcpy(void *dest, const void *src, size_t n)
++{
++	void *dest_ret = dest;
++
++	if (LIKELY((((addr_t)dest ^ (addr_t)src) & 3) == 0) && LIKELY(n > 6)) {
++		size_t m;
++		n -= (4 - (addr_t)dest) & 0x03;
++		m = n >> 2;
++		asm volatile (
++		"	sub.4		d15, #0, %2		\n\t"	// set up for jump table
++		"	and.4		d15, #(32-1), d15	\n\t"	// d15 = (-m) & (32 - 1)
++		"	moveai		a3, #%%hi(1f)		\n\t"
++		"	lea.1		a3, %%lo(1f)(a3)	\n\t"
++		"	lea.4		a3, (a3,d15)		\n\t"
++
++		"	bfextu		d15, %0, #2		\n\t"	// d15 = (dest & 3)
++		"	jmpne.w.f	100f			\n\t"
++		"	calli		a3, 0(a3)		\n\t"	// 4-byte alignment
++
++		"100:	cmpi		d15, #2			\n\t"
++		"	jmpne.s.f	101f			\n\t"
++		"	move.2		(%0)2++, (%1)2++	\n\t"
++		"	calli		a3, 0(a3)		\n\t"	// 2-byte alignment
++
++		"101:	move.1		(%0)1++, (%1)1++	\n\t"
++		"	jmpgt.s.f	102f			\n\t"	// 3-byte alignment
++		"	move.2		(%0)2++, (%1)2++	\n\t"	// 1-byte alignment
++		"102:	calli		a3, 0(a3)		\n\t"
++
++		"200:	cmpi		%3, #2			\n\t"
++		"	jmplt.s.f	201f			\n\t"
++		"	move.2		(%0)2++, (%1)2++	\n\t"
++		"	jmpeq.s.t	2f			\n\t"
++		"201:	move.1		(%0)1++, (%1)1++	\n\t"
++		"	jmpt.w.t	2f			\n\t"
++
++		"1:	.rept		25			\n\t"
++		"	movea		(%0)4++, (%1)4++	\n\t"
++		"	.endr					\n\t"
++		"	.rept		7			\n\t"
++		"	move.4		(%0)4++, (%1)4++	\n\t"
++		"	.endr					\n\t"
++		"	add.4		%2, #-32, %2		\n\t"
++		"	jmpgt.w.f	1b			\n\t"
++
++		"	and.4		%3, #3, %3		\n\t"	// check n
++		"	jmpne.w.f	200b			\n\t"
++		"2:						\n\t"
++			: "+a" (dest), "+a" (src), "+d" (m), "+d" (n)
++			:
++			: "d15", "a3", "memory", "cc"
++		);
++
++		return dest_ret;
++	}
++
++	if (LIKELY((((addr_t)dest ^ (addr_t)src) & 1) == 0) && LIKELY(n > 2)) {
++		size_t m;
++		n -= (addr_t)dest & 0x01;
++		m = n >> 1;
++		asm volatile (
++		"	sub.4		d15, #0, %2		\n\t"	// set up for jump table
++		"	and.4		d15, #(32-1), d15	\n\t"	// d15 = (-m) & (32 - 1)
++		"	moveai		a3, #%%hi(1f)		\n\t"
++		"	lea.1		a3, %%lo(1f)(a3)	\n\t"
++		"	lea.4		a3, (a3,d15)		\n\t"
++
++		"	btst		%0, #0			\n\t"	// check bit 0
++		"	jmpne.w.f	100f			\n\t"
++		"	calli		a3, 0(a3)		\n\t"	// 4-byte alignment
++
++		"100:	move.1		(%0)1++, (%1)1++	\n\t"
++		"	calli		a3, 0(a3)		\n\t"
++
++		"200:	move.1		(%0)1++, (%1)1++	\n\t"
++		"	jmpt.w.t	2f			\n\t"
++
++		"1:	.rept		32			\n\t"
++		"	move.2		(%0)2++, (%1)2++	\n\t"
++		"	.endr					\n\t"
++		"	add.4		%2, #-32, %2		\n\t"
++		"	jmpgt.w.f	1b			\n\t"
++
++		"	and.4		%3, #1, %3		\n\t"	// check n
++		"	jmpne.w.f	200b			\n\t"
++		"2:						\n\t"
++
++			: "+a" (dest), "+a" (src), "+d" (m), "+d" (n)
++			:
++			: "d15", "a3", "memory", "cc"
++		);
++
++		return dest_ret;
++	}
++
++	asm volatile (
++	"	sub.4		d15, #0, %2		\n\t"
++	"	jmpeq.w.f	2f			\n\t"
++	"	and.4		d15, #(16-1), d15	\n\t"	// d15 = (-n) & (16 - 1)
++	"	moveai		a3, #%%hi(1f)		\n\t"
++	"	lea.1		a3, %%lo(1f)(a3)	\n\t"
++	"	lea.4		a3, (a3,d15)		\n\t"
++	"	calli		a3, 0(a3)		\n\t"
++
++	"1:	.rept		16			\n\t"
++	"	move.1		(%0)1++, (%1)1++	\n\t"
++	"	.endr					\n\t"
++	"	add.4		%2, #-16, %2		\n\t"
++	"	jmpgt.w.f	1b			\n\t"
++	"2:						\n\t"
++
++		: "+a" (dest), "+a" (src), "+d" (n)
++		:
++		: "d15", "a3", "memory", "cc"
++	);
++
++	return dest_ret;
++}
++
++/*
++ * memset()
++ */
++void *memset(void *s, int c, size_t n)
++{
++	void *s_ret = s;
++
++	if (LIKELY(n > 6)) {
++		size_t m;
++		n -= (4 - (addr_t)s) & 0x03;
++		m = n >> 2;
++		asm volatile (
++		"	sub.4		d15, #0, %2		\n\t"	// set up for jump table
++		"	and.4		d15, #(32-1), d15	\n\t"	// d15 = (-m) & (32 - 1)
++		"	shmrg.1		%1, %1, %1		\n\t"
++		"	shmrg.2		%1, %1, %1		\n\t"	// %1 = (c<<24)|(c<<16)|(c<<8)|c
++		"	moveai		a3, #%%hi(1f)		\n\t"
++		"	lea.1		a3, %%lo(1f)(a3)	\n\t"
++		"	lea.4		a3, (a3,d15)		\n\t"
++
++		"	bfextu		d15, %0, #2		\n\t"	// d15 = (s & 3)
++		"	jmpne.w.f	100f			\n\t"
++		"	calli		a3, 0(a3)		\n\t"	// 4-byte alignment
++
++		"100:	cmpi		d15, #2			\n\t"
++		"	jmpne.s.f	101f			\n\t"
++		"	move.2		(%0)2++, %1		\n\t"
++		"	calli		a3, 0(a3)		\n\t"	// 2-byte alignment
++
++		"101:	move.1		(%0)1++, %1		\n\t"
++		"	jmpgt.s.f	102f			\n\t"	// 3-byte alignment
++		"	move.2		(%0)2++, %1		\n\t"	// 1-byte alignment
++		"102:	calli		a3, 0(a3)		\n\t"
++
++		"200:	cmpi		%3, #2			\n\t"
++		"	jmplt.s.f	201f			\n\t"
++		"	move.2		(%0)2++, %1		\n\t"
++		"	jmpeq.s.t	2f			\n\t"
++		"201:	move.1		(%0)1++, %1		\n\t"
++		"	jmpt.w.t	2f			\n\t"
++
++		"1:	.rept		25			\n\t"
++		"	movea		(%0)4++, %1		\n\t"
++		"	.endr					\n\t"
++		"	.rept		7			\n\t"
++		"	move.4		(%0)4++, %1		\n\t"
++		"	.endr					\n\t"
++		"	add.4		%2, #-32, %2		\n\t"
++		"	jmpgt.w.f	1b			\n\t"
++
++		"	and.4		%3, #3, %3		\n\t"	// test bit 1 of n
++		"	jmpne.w.f	200b			\n\t"
++		"2:						\n\t"
++
++			: "+a" (s), "+d" (c), "+d" (m), "+d" (n)
++			:
++			: "d15", "a3", "memory", "cc"
++		);
++
++		return s_ret;
++	}
++
++	asm volatile (
++	"	sub.4		d15, #0, %2		\n\t"
++	"	jmpeq.w.f	2f			\n\t"
++	"	and.4		d15, #(8-1), d15	\n\t"	// d15 = (-%2) & (16 - 1)
++	"	moveai		a3, #%%hi(1f)		\n\t"
++	"	lea.1		a3, %%lo(1f)(a3)	\n\t"
++	"	lea.4		a3, (a3,d15)		\n\t"
++	"	calli		a3, 0(a3)		\n\t"
++
++	"1:	.rept		8			\n\t"
++	"	move.1		(%0)1++, %1		\n\t"
++	"	.endr					\n\t"
++	"2:						\n\t"
++
++		: "+a" (s), "+d" (c), "+d" (n)
++		:
++		: "d15", "a3", "memory", "cc"
++	);
++
++	return s_ret;
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/audio_tio.c
+@@ -0,0 +1,115 @@
++/*
++ * arch/ubicom32/mach-common/audio_tio.c
++ *   Generic initialization for Ubicom32 Audio
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/platform_device.h>
++#include <linux/types.h>
++
++#include <asm/devtree.h>
++#include <asm/audio_tio.h>
++#include <asm/ubi32-pcm.h>
++
++/*
++ * The number of audio_tio's currently allocated, used for .id
++ */
++static int __initdata audio_tio_count;
++
++/*
++ * The maximum number of resources that the audio_tio will have.
++ * Currently 3, a register space, and up to 2 interrupts.
++ */
++#define AUDIO_TIO_MAX_RESOURCES	3
++
++/*
++ * audio_tio_alloc
++ *	Checks the device tree and allocates a platform_device if found
++ */
++struct platform_device * __init audio_tio_alloc(const char *driver_name, 
++		const char *node_name, int priv_bytes)
++{
++	struct platform_device *pdev;
++	struct resource *res;
++	struct audiotionode *audio_node;
++	struct ubi32pcm_platform_data *pdata;
++
++	/*
++	 * Check the device tree for the audio_tio
++	 */
++	audio_node = (struct audiotionode *)devtree_find_node(node_name);
++	if (!audio_node) {
++		printk(KERN_WARNING "audio TIO '%s' found\n", node_name);
++		return NULL;
++	}
++
++	if (audio_node->version != AUDIOTIONODE_VERSION) {
++		printk(KERN_WARNING "audio_tio not compatible\n");
++		return NULL;
++	}
++
++	/*
++	 * Dynamically create the platform_device structure and resources
++	 */
++	pdev = kzalloc(sizeof(struct platform_device) + 
++		       sizeof(struct ubi32pcm_platform_data) + 
++		       priv_bytes , GFP_KERNEL);
++	if (!pdev) {
++		printk(KERN_WARNING "audio_tio could not alloc pdev\n");
++		return NULL;
++	}
++
++	res = kzalloc(sizeof(struct resource) * AUDIO_TIO_MAX_RESOURCES,
++			GFP_KERNEL);
++	if (!res) {
++		kfree(pdev);
++		printk(KERN_WARNING "audio_tio could not alloc res\n");
++		return NULL;
++	}
++
++	pdev->name = driver_name;
++	pdev->id = audio_tio_count++;
++	pdev->resource = res;
++
++	/*
++	 * Fill in the resources and platform data from devtree information
++	 */
++	res[0].start = (u32_t)(audio_node->regs);
++	res[0].end = (u32_t)(audio_node->regs);
++	res[0].flags = IORESOURCE_MEM;
++	res[1 + AUDIOTIO_TX_IRQ_RESOURCE].start = audio_node->dn.sendirq;
++	res[1 + AUDIOTIO_TX_IRQ_RESOURCE].flags = IORESOURCE_IRQ;
++	res[1 + AUDIOTIO_RX_IRQ_RESOURCE].start = audio_node->dn.recvirq;
++	res[1 + AUDIOTIO_RX_IRQ_RESOURCE].flags = IORESOURCE_IRQ;
++	pdev->num_resources = 3;
++
++	printk(KERN_INFO "AudioTIO.%d '%s' found irq=%d/%d regs=%p pdev=%p/%p\n",
++		audio_tio_count - 1, node_name, audio_node->dn.sendirq,
++		audio_node->dn.recvirq, audio_node->regs, pdev, res);
++	pdata = (struct ubi32pcm_platform_data *)(pdev + 1);
++	pdev->dev.platform_data = pdata;
++	pdata->node_name = node_name;
++	if (priv_bytes) {
++		pdata->priv_data = pdata + 1;
++	}
++
++	return pdev;
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mach-common/board.c
+@@ -0,0 +1,63 @@
++/*
++ * arch/ubicom32/mach-common/board.c
++ *   Board init and support code.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/cpu.h>
++#include <asm/devtree.h>
++
++struct boardnode {
++	struct devtree_node dn;
++	const char *revision;
++};
++
++static const struct boardnode *bn;
++
++/*
++ * board_get_revision()
++ *	Returns revision string of the board.
++ */
++const char *board_get_revision(void)
++{
++	if (!bn) {
++		return "NULL";
++	}
++
++	return bn->revision;
++}
++
++/*
++ * board_init
++ */
++void __init board_init(void)
++{
++	bn = (struct boardnode *)devtree_find_node("board");
++	if (!bn) {
++		printk(KERN_WARNING "board node not found\n");
++		return;
++	}
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/bootargs.c
+@@ -0,0 +1,63 @@
++/*
++ * arch/ubicom32/mach-common/bootargs.c
++ *   Board init and support code.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/cpu.h>
++#include <asm/devtree.h>
++
++struct bootargsnode {
++	struct devtree_node dn;
++	const char cmdline[512];
++};
++
++static const struct bootargsnode *ban;
++
++/*
++ * bootargs_get_cmdline()
++ *	Returns kernel boot arguments set by the bootloader.
++ */
++const char *bootargs_get_cmdline(void)
++{
++	if (!ban) {
++		return "";
++	}
++
++	return ban->cmdline;
++}
++
++/*
++ * bootargs_init
++ */
++void __init bootargs_init(void)
++{
++	ban = (struct bootargsnode *)devtree_find_node("bootargs");
++	if (!ban) {
++		printk(KERN_WARNING "bootargs node not found\n");
++		return;
++	}
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/cachectl.c
+@@ -0,0 +1,125 @@
++/*
++ * arch/ubicom32/mach-common/cachectl.c
++ *   Architecture cache control support
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/module.h>
++#include <asm/cachectl.h>
++
++/*
++ * The write queue flush procedure in mem_cache_control needs to make
++ * DCACHE_WRITE_QUEUE_LENGTH writes to DDR (not OCM). Here we reserve some
++ * memory for this operation.
++ * Allocate array of cache lines of least DCACHE_WRITE_QUEUE_LENGTH + 1 words in
++ * length rounded up to the nearest cache line.
++ */
++#define CACHE_WRITE_QUEUE_FLUSH_AREA_SIZE \
++	ALIGN(sizeof(int) * (DCACHE_WRITE_QUEUE_LENGTH + 1), CACHE_LINE_SIZE)
++
++static char cache_write_queue_flush_area[CACHE_WRITE_QUEUE_FLUSH_AREA_SIZE]
++	__attribute__((aligned(CACHE_LINE_SIZE)));
++
++/*
++ * ONE_CCR_ADDR_OP is a helper macro that executes a single CCR operation.
++ */
++#define ONE_CCR_ADDR_OP(cc, op_addr, op)				\
++	do {								\
++		asm volatile (						\
++		"	btst	"D(CCR_CTRL)"(%0), #"D(CCR_CTRL_VALID)"				\n\t" \
++		"	jmpne.f	.-4								\n\t" \
++		"	move.4	"D(CCR_ADDR)"(%0), %1						\n\t" \
++		"	move.1	"D(CCR_CTRL+3)"(%0), %2						\n\t" \
++		"	bset	"D(CCR_CTRL)"(%0), "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_VALID)"	\n\t" \
++		"	cycles	2								\n\t" \
++		"	btst	"D(CCR_CTRL)"(%0), #"D(CCR_CTRL_DONE)"				\n\t" \
++		"	jmpeq.f	.-4								\n\t" \
++			:						\
++			: "a"(cc), "r"(op_addr), "r"(op & 0xff)		\
++			: "cc"						\
++		);							\
++	} while (0)
++
++/*
++ * mem_cache_control()
++ *	Special cache control operation
++ */
++void mem_cache_control(unsigned long cc, unsigned long begin_addr,
++		       unsigned long end_addr, unsigned long op)
++{
++	unsigned long op_addr;
++
++	if (cc == DCCR_BASE && op == CCR_CTRL_FLUSH_ADDR) {
++		/*
++		 * We ensure all previous writes have left the data cache write
++		 * queue by sending DCACHE_WRITE_QUEUE_LENGTH writes (to
++		 * different words) down the queue.  If this is not done it's
++		 * possible that the data we are trying to flush hasn't even
++		 * entered the data cache.
++		 * The +1 ensure that the final 'flush' is actually a flush.
++		 */
++		int *flush_area = (int *)cache_write_queue_flush_area;
++		asm volatile(
++			"	.rept "D(DCACHE_WRITE_QUEUE_LENGTH + 1)"	\n\t"
++			"	move.4 (%0)4++, d0				\n\t"
++			"	.endr						\n\t"
++			: "+a"(flush_area)
++			);
++	}
++
++	/*
++	 * Calculate the cache lines we need to operate on that include
++	 * begin_addr though end_addr.
++	 */
++	begin_addr = begin_addr & ~(CACHE_LINE_SIZE - 1);
++	end_addr = (end_addr + CACHE_LINE_SIZE - 1) & ~(CACHE_LINE_SIZE - 1);
++	op_addr = begin_addr;
++
++	do {
++		ONE_CCR_ADDR_OP(cc, op_addr, op);
++		op_addr += CACHE_LINE_SIZE;
++	} while (likely(op_addr < end_addr));
++
++	if (cc == DCCR_BASE && op == CCR_CTRL_FLUSH_ADDR) {
++		/*
++		 * It turns out that when flushing the data cache the last flush
++		 * isn't actually complete at this point. This is because there
++		 * is another write buffer on the DDR side of the cache that is
++		 * arbitrated with the I-Cache.
++		 *
++		 * The only foolproof method that ensures that the last data
++		 * cache flush *actually* completed is to do another flush on a
++		 * dirty cache line. This flush will block until the DDR write
++		 * buffer is empty.
++		 *
++		 * Rather than creating a another dirty cache line, we use the
++		 * flush_area above as we know that it is dirty from previous
++		 * writes.
++		 */
++		ONE_CCR_ADDR_OP(cc, cache_write_queue_flush_area, op);
++	}
++}
++EXPORT_SYMBOL(mem_cache_control);
+--- /dev/null
++++ b/arch/ubicom32/mach-common/common.c
+@@ -0,0 +1,64 @@
++/*
++ * arch/ubicom32/mach-common/common.c
++ *   Common platform support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/version.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/list.h>
++#include <linux/errno.h>
++#include <linux/err.h>
++#include <linux/string.h>
++#include <linux/clk.h>
++#include <linux/mutex.h>
++#include <linux/platform_device.h>
++
++
++/* Minimum CLK support */
++
++struct clk *clk_get(struct device *dev, const char *id)
++{
++	return ERR_PTR(-ENOENT);
++}
++EXPORT_SYMBOL(clk_get);
++
++void clk_put(struct clk *clk)
++{
++}
++EXPORT_SYMBOL(clk_put);
++
++int clk_enable(struct clk *clk)
++{
++	return 0;
++}
++EXPORT_SYMBOL(clk_enable);
++
++
++void clk_disable(struct clk *clk)
++{
++}
++EXPORT_SYMBOL(clk_disable);
+--- /dev/null
++++ b/arch/ubicom32/mach-common/io.c
+@@ -0,0 +1,250 @@
++/*
++ * arch/ubicom32/mach-common/io.c
++ *   PCI I/O memory read/write support functions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/io.h>
++
++#ifdef CONFIG_PCI
++unsigned char  ioread8(void __iomem *addr)
++{
++	if (IS_PCI_ADDRESS(addr))
++		return ubi32_pci_read_u8(addr);
++	else
++		return (unsigned char)(*(volatile unsigned char *)addr);
++}
++EXPORT_SYMBOL(ioread8);
++
++unsigned short  ioread16(void __iomem *addr)
++{
++	if (IS_PCI_ADDRESS(addr))
++		return ubi32_pci_read_u16(addr);
++	else
++		return (unsigned short)(*(volatile unsigned short *)addr);
++}
++EXPORT_SYMBOL(ioread16);
++
++unsigned int  ioread32(void __iomem *addr)
++{
++	if (IS_PCI_ADDRESS(addr))
++		return ubi32_pci_read_u32(addr);
++	else
++		return (unsigned int)(*(volatile unsigned int *)addr);
++}
++EXPORT_SYMBOL(ioread32);
++
++void iowrite32(unsigned int val, void __iomem *addr)
++{
++	if (IS_PCI_ADDRESS(addr))
++		ubi32_pci_write_u32(val, addr);
++	else
++		*(volatile unsigned int *)addr = val;
++}
++EXPORT_SYMBOL(iowrite32);
++
++void iowrite16(unsigned short val, void __iomem *addr)
++{
++	if (IS_PCI_ADDRESS(addr))
++		ubi32_pci_write_u16(val, addr);
++	else
++		*(volatile unsigned short *)addr = val;
++}
++EXPORT_SYMBOL(iowrite16);
++
++void iowrite8(unsigned char val, void __iomem *addr)
++{
++	if (IS_PCI_ADDRESS(addr))
++		ubi32_pci_write_u8(val, addr);
++	else
++		*(volatile unsigned char *)addr = val;
++}
++EXPORT_SYMBOL(iowrite8);
++
++void memcpy_fromio(void *to, const volatile void __iomem *from, unsigned len)
++{
++	if (IS_PCI_ADDRESS(from)) {
++		if ((((u32_t)from & 0x3) == 0) && (((u32_t)to & 0x3) == 0)) {
++			while ((int)len >= 4) {
++				*(u32_t *)to = ubi32_pci_read_u32(from);
++				to += 4;
++				from += 4;
++				len -= 4;
++			}
++		} else if ((((u32_t)from & 0x1) == 0) &&
++			   (((u32_t)to & 0x1) == 0)) {
++			while ((int)len >= 2) {
++				 *(u16_t *)to = ubi32_pci_read_u16(from);
++				 to += 2;
++				 from += 2;
++				 len -= 2;
++			}
++		}
++
++		while (len) {
++			*(u8_t *)to = ubi32_pci_read_u8(from);
++			to++;
++			from++;
++			len--;
++		}
++	} else
++		memcpy(to, (void *)from, len);
++}
++EXPORT_SYMBOL(memcpy_fromio);
++
++void memcpy_toio(volatile void __iomem *to, const void *from, unsigned len)
++{
++	if (IS_PCI_ADDRESS(to)) {
++		if ((((u32_t)from & 0x3) == 0) && (((u32_t)to & 0x3) == 0)) {
++			while ((int)len >= 4) {
++				ubi32_pci_write_u32(*(u32_t *)from, to);
++				to += 4;
++				from += 4;
++				len -= 4;
++			}
++		} else if ((((u32_t)from & 0x1) == 0) &&
++			   (((u32_t)to & 0x1) == 0)) {
++			while ((int)len >= 2) {
++				ubi32_pci_write_u16(*(u16_t *)from, to);
++				to += 2;
++				from += 2;
++				len -= 2;
++			}
++		}
++
++		while (len) {
++			ubi32_pci_write_u8(*(u8_t *)from, to);
++			from++;
++			to++;
++			len--;
++		}
++	} else
++		memcpy((void *)to, from, len);
++
++}
++EXPORT_SYMBOL(memcpy_toio);
++
++void memset_io(volatile void __iomem *addr, int val, size_t len)
++{
++	if (IS_PCI_ADDRESS(addr)) {
++		while (len) {
++			ubi32_pci_write_u8((unsigned char)val, addr);
++			addr++;
++			len--;
++		}
++	} else
++		memset((void *)addr, val, len);
++
++}
++EXPORT_SYMBOL(memset_io);
++
++void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
++{
++	if (IS_PCI_ADDRESS(port)) {
++		while (count) {
++			*(u8_t *)buf = ioread8(port);
++			buf++;
++			count--;
++		}
++	} else {
++		insb((unsigned int)port, buf, count);
++	}
++
++}
++EXPORT_SYMBOL(ioread8_rep);
++
++void ioread16_rep(void __iomem *port, void *buf, unsigned long count)
++{
++	if (IS_PCI_ADDRESS(port)) {
++		while (count) {
++			*(u16_t *)buf = ioread16(port);
++			buf += 2;
++			count--;
++		}
++	} else {
++		insw((unsigned int)port, buf, count);
++	}
++}
++EXPORT_SYMBOL(ioread16_rep);
++
++void ioread32_rep(void __iomem *port, void *buf, unsigned long count)
++{
++	 if (IS_PCI_ADDRESS(port)) {
++		while (count) {
++			*(u32_t *)buf = ioread32(port);
++			buf += 4;
++			count--;
++		}
++	} else {
++		insl((unsigned int)port, buf, count);
++	}
++}
++EXPORT_SYMBOL(ioread32_rep);
++
++void  iowrite8_rep(void __iomem *port, const void *buf, unsigned long count)
++{
++	  if (IS_PCI_ADDRESS(port)) {
++		while (count) {
++			iowrite8(*(u8_t *)buf, port);
++			buf++;
++			count--;
++		}
++	} else {
++		outsb((unsigned int)port, buf, count);
++	}
++
++}
++EXPORT_SYMBOL(iowrite8_rep);
++
++void  iowrite16_rep(void __iomem *port, const void *buf, unsigned long count)
++{
++	if (IS_PCI_ADDRESS(port)) {
++		while (count) {
++			iowrite16(*(u16_t *)buf, port);
++			buf += 2;
++			count--;
++		}
++	} else {
++		outsw((unsigned int)port, buf, count);
++	}
++}
++EXPORT_SYMBOL(iowrite16_rep);
++
++void  iowrite32_rep(void __iomem *port, const void *buf, unsigned long count)
++{
++	if (IS_PCI_ADDRESS(port)) {
++		while (count) {
++			iowrite32(*(u32_t *)buf, port);
++			buf += 4;
++			count--;
++		}
++	} else {
++		outsl((unsigned int)port, buf, count);
++	}
++}
++EXPORT_SYMBOL(iowrite32_rep);
++
++#endif /* CONFIG_PCI */
+--- /dev/null
++++ b/arch/ubicom32/mach-common/Makefile
+@@ -0,0 +1,38 @@
++#
++# arch/ubicom32/mach-common/Makefile
++#	Makefile for Ubicom32 generic drivers/code.
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not, 
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++
++obj-y += cachectl.o common.o usb_tio.o usb.o ubi32-gpio.o board.o bootargs.o
++obj-$(CONFIG_PCI) += pci.o io.o
++
++obj-$(CONFIG_FB_UBICOM32) += vdc_tio.o
++obj-$(CONFIG_UBICOM_HID) += ubicom32hid.o
++obj-$(CONFIG_UBICOM_INPUT) += ubicom32input.o
++obj-$(CONFIG_UBICOM_INPUT_I2C) += ubicom32input_i2c.o
++obj-$(CONFIG_UIO_UBICOM32RING) += ring_tio.o
++obj-$(CONFIG_SND_UBI32) += audio_tio.o
++
+--- /dev/null
++++ b/arch/ubicom32/mach-common/pci.c
+@@ -0,0 +1,1157 @@
++/*
++ * arch/ubicom32/mach-common/pci.c
++ *	PCI interface management.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/io.h>
++#include <linux/seq_file.h>
++#include <linux/proc_fs.h>
++
++#include <asm/devtree.h>
++#include <asm/ip5000.h>
++#include <asm/ubicom32-common.h>
++
++static int debug_pci = 1 ;
++
++/* #define PCI_USE_INTERNAL_LOCK 1 */
++
++#ifdef PCI_USE_INTERNAL_LOCK
++#define PCI_LOCK(lock, irqflag)	pci_lock_acquire(irqflag)
++#define PCI_UNLOCK(lock, irqflag) pci_lock_release(irqflag)
++#elif defined(CONFIG_SMP)
++static DEFINE_SPINLOCK(pci_master_lock);
++#define PCI_LOCK(lock, irqflag)	spin_lock_irqsave(lock, irqflag)
++#define PCI_UNLOCK(lock, irqflag) spin_unlock_irqrestore(lock, irqflag)
++#else
++#define PCI_LOCK(lock, irqflag)		local_irq_save(irqflag)
++#define PCI_UNLOCK(lock, irqflag)	local_irq_restore(irqflag)
++#endif
++
++#define PCI_DEV0_IDSEL CONFIG_PCI_DEV0_IDSEL
++#define PCI_DEV1_IDSEL CONFIG_PCI_DEV1_IDSEL
++
++/*
++ * PCI commands
++ */
++#define PCI_CMD_INT_ACK		0x00	/* not supported */
++#define PCI_CMD_SPECIAL		0x01	/* not supported */
++#define PCI_CMD_IO_READ		0x02
++#define PCI_CMD_IO_WRITE	0x03
++#define PCI_CMD_MEM_READ	0x06
++#define PCI_CMD_MEM_WRITE	0x07
++#define PCI_CMD_CFG_READ	0x0a
++#define PCI_CMD_CFG_WRITE	0x0b
++#define PCI_CMD_MEM_READ_MULT	0x0c	/* not supported */
++#define PCI_CMD_DUAL_ADDR	0x0d	/* not supported */
++#define PCI_CMD_MEM_READ_LINE	0x0e	/* not supported */
++#define PCI_CMD_MEM_WRITE_INVAL	0x0f	/* not supported */
++/*
++ * Status codes, returned by pci_read_u32() and pci_write_u32()
++ */
++#define PCI_RESP_IN_PROGRESS	0xff  /* request still in queue */
++#define PCI_RESP_OK		0
++/*
++ * The following codes indicate that the request has completed
++ */
++#define PCI_RESP_NO_DEVSEL		1  /* timeout before target asserted
++					    * DEVSEL! */
++#define PCI_RESP_LOST_DEVSEL		2  /* had DEVSEL, but went away before
++					    * transfer completed! */
++#define PCI_RESP_BAD_TRDY		3  /* target asserted TRDY without
++					    * DEVSEL! */
++#define PCI_RESP_NO_TRDY		4  /* timeout before target asserted
++					    * TRDY! */
++#define PCI_RESP_BAD_STOP		5  /* target asserted STOP and TRDY
++					    * without DEVSEL! */
++#define PCI_RESP_TARGET_ABORT		6
++#define PCI_RESP_TARGET_RETRY		7
++#define	PCI_RESP_TARGET_DISCONNECT	8
++#define PCI_RESP_MISMATCH		9  /* data read back doesn't match data
++					    * written - debug only, the core PCI
++					    * routines never return this */
++#define PCI_RESP_DET_SERR		10
++#define PCI_RESP_DET_PERR		11
++#define PCI_RESP_MALFORMED_REQ		12 /* Could be due to misaligned
++					    * requests or invalid address */
++#define PCI_RESP_NO_RESOURCE		13 /* Could be memory or other resourse
++					    * like queue space */
++#define PCI_RESP_ERROR			14 /* All emcompassing error */
++
++/* registers in PCI config space */
++#define PCI_DEVICE_VENDOR_ID_REG	0x00
++#define PCI_STATUS_COMMAND_REG		0x04
++#define PCI_CLASS_REVISION_REG		0x08
++#define PCI_BHLC_REG			0x0c  /* BIST, Header type, Latency
++					       * timer, Cache line size */
++#define PCI_BASE_ADDR_REG		0x10
++#define PCI_BASE_REG_COUNT		6
++#define CARDBUS_CIS_PTR_REG		0x28
++#define PCI_SUB_SYSTEM_ID_REG		0x2c
++#define PCI_EXP_ROM_ADDR_REG		0x30
++#define PCI_CAP_PTR_REG			0x34
++#define PCI_LGPL_REG			0x3C  /* max Latency, min Gnt, interrupt
++					       * Pin, interrupt Line */
++
++struct pci_master_request {
++	volatile u32_t pci_address;	/* must be 4-byte aligned */
++	volatile u32_t data;		/* must be 4-byte aligned */
++	volatile u8_t cmd;
++	volatile u8_t byte_valid;
++	volatile u8_t status;
++};
++
++struct pci_devnode {
++	struct devtree_node dn;
++	u32_t pci_idsel_0;
++	u32_t pci_idsel_1;
++	u32_t pci_cpu_address;
++	struct pci_master_request volatile *volatile req;
++};
++
++static struct pci_master_request req;	/* globally used for faster master write
++					 * (discarding result when possible) */
++static struct pci_devnode *pci_node;
++
++#if !defined(CONFIG_DEBUG_PCIMEASURE)
++#define PCI_DECLARE_MEASUREMENT
++#define PCI_MEASUREMENT_START()
++#define PCI_MEASUREMENT_END(idx)
++#else
++#define PCI_DECLARE_MEASUREMENT \
++	int __diff;		\
++	unsigned int __tstart;
++
++#define PCI_MEASUREMENT_START() \
++	__tstart = UBICOM32_IO_TIMER->sysval;
++
++#define PCI_MEASUREMENT_END(idx) \
++	__diff = (int)UBICOM32_IO_TIMER->sysval - (int)__tstart; \
++	pci_measurement_update((idx), __diff);
++
++#define PCI_WEIGHT 32
++
++struct pci_measurement {
++	volatile unsigned int min;
++	volatile unsigned int avg;
++	volatile unsigned int max;
++};
++
++enum pci_measurement_list {
++	PCI_MEASUREMENT_READ32,
++	PCI_MEASUREMENT_WRITE32,
++	PCI_MEASUREMENT_READ16,
++	PCI_MEASUREMENT_WRITE16,
++	PCI_MEASUREMENT_READ8,
++	PCI_MEASUREMENT_WRITE8,
++	PCI_MEASUREMENT_LAST,
++};
++
++static const char *pci_measurement_name_list[PCI_MEASUREMENT_LAST] = {
++	"READ32",
++	"WRITE32",
++	"READ16",
++	"WRITE16",
++	"READ8",
++	"WRITE8"
++};
++static struct pci_measurement pci_measurements[PCI_MEASUREMENT_LAST];
++
++/*
++ * pci_measurement_update()
++ *	Update an entry in the measurement array for this idx.
++ */
++static void pci_measurement_update(int idx, int sample)
++{
++	struct pci_measurement *pm = &pci_measurements[idx];
++	if ((pm->min == 0) || (pm->min > sample)) {
++		pm->min = sample;
++	}
++	if (pm->max < sample) {
++		pm->max = sample;
++	}
++	pm->avg = ((pm->avg * (PCI_WEIGHT - 1)) + sample) / PCI_WEIGHT;
++}
++#endif
++
++#if defined(PCI_USE_INTERNAL_LOCK)
++/*
++ * pci_lock_release()
++ *	Release the PCI lock.
++ */
++static void pci_lock_release(unsigned long irqflag)
++{
++	UBICOM32_UNLOCK(PCI_LOCK_BIT);
++}
++
++/*
++ * pci_lock_acquire()
++ *	Acquire the PCI lock, spin if not available.
++ */
++static void pci_lock_acquire(unsigned long irqflag)
++{
++	UBICOM32_LOCK(PCI_LOCK_BIT);
++}
++#endif
++
++/*
++ * pci_set_hrt_interrupt()
++ */
++static inline void pci_set_hrt_interrupt(struct pci_devnode *pci_node)
++{
++	ubicom32_set_interrupt(pci_node->dn.sendirq);
++}
++
++/*
++ * pci_read_u32()
++ *	Synchronously read 32 bits from PCI space.
++ */
++u8 pci_read_u32(u8 pci_cmd, u32 address, u32 *data)
++{
++	u8 status;
++	unsigned long irqflag;
++
++
++	/*
++	 * Fill in the request.
++	 */
++	volatile struct pci_master_request lreq;
++	PCI_DECLARE_MEASUREMENT;
++
++	lreq.pci_address = address;
++	lreq.cmd = pci_cmd;
++	lreq.byte_valid = 0xf;		/* enable all bytes */
++
++	/*
++	 * Wait for any previous request to complete and then make this request.
++	 */
++	PCI_MEASUREMENT_START();
++	PCI_LOCK(&pci_master_lock, irqflag);
++	while (unlikely(pci_node->req == &req))
++		;
++	pci_node->req = &lreq;
++	pci_set_hrt_interrupt(pci_node);
++	PCI_UNLOCK(&pci_master_lock, irqflag);
++
++	/*
++	 * Wait for the result to show up.
++	 */
++	while (unlikely(pci_node->req == &lreq))
++		;
++	status = lreq.status;
++	if (likely(status == PCI_RESP_OK))
++		*data = le32_to_cpu(lreq.data);
++	else
++		*data = 0;
++	PCI_MEASUREMENT_END(PCI_MEASUREMENT_READ32);
++	return status;
++}
++
++/*
++ * pci_write_u32()
++ *	Asyncrhnously or synchronously write 32 bits to PCI master space.
++ */
++u8 pci_write_u32(u8 pci_cmd, u32 address, u32 data)
++{
++	unsigned long irqflag;
++	PCI_DECLARE_MEASUREMENT;
++
++	/*
++	 * Wait for any previous write or pending read to complete.
++	 *
++	 * We use a global data block because once we write the request
++	 * we do not wait for it to complete before exiting.
++	 */
++	PCI_MEASUREMENT_START();
++	PCI_LOCK(&pci_master_lock, irqflag);
++	while (unlikely(pci_node->req == &req))
++		;
++	req.pci_address = address;
++	req.data = cpu_to_le32(data);
++	req.cmd = pci_cmd;
++	req.byte_valid = 0xf;		/* enable all bytes */
++	pci_node->req = &req;
++	pci_set_hrt_interrupt(pci_node);
++	PCI_UNLOCK(&pci_master_lock, irqflag);
++	PCI_MEASUREMENT_END(PCI_MEASUREMENT_WRITE32);
++	return PCI_RESP_OK;
++}
++
++/*
++ * pci_read_u16()
++ *	Synchronously read 16 bits from PCI space.
++ */
++u8 pci_read_u16(u8 pci_cmd, u32 address, u16 *data)
++{
++	u8 status;
++	unsigned long irqflag;
++
++	/*
++	 * Fill in the request.
++	 */
++	volatile struct pci_master_request lreq;
++	PCI_DECLARE_MEASUREMENT;
++
++	lreq.pci_address = address & ~2;
++	lreq.cmd = pci_cmd;
++	lreq.byte_valid = (address & 2) ? 0xc : 0x3;
++
++	/*
++	 * Wait for any previous request to complete and then make this request.
++	 */
++	PCI_MEASUREMENT_START();
++	PCI_LOCK(&pci_master_lock, irqflag);
++	while (unlikely(pci_node->req == &req))
++		;
++	pci_node->req = &lreq;
++	pci_set_hrt_interrupt(pci_node);
++	PCI_UNLOCK(&pci_master_lock, irqflag);
++
++	/*
++	 * Wait for the result to show up.
++	 */
++	while (unlikely(pci_node->req == &lreq))
++		;
++	status = lreq.status;
++	if (likely(status == PCI_RESP_OK)) {
++		lreq.data = le32_to_cpu(lreq.data);
++		*data = (u16)((address & 2) ? (lreq.data >> 16) : lreq.data);
++	} else
++		*data = 0;
++	PCI_MEASUREMENT_END(PCI_MEASUREMENT_READ16);
++	return status;
++}
++
++/*
++ * pci_write_u16()
++ *	Asyncrhnously or synchronously write 16 bits to PCI master space.
++ */
++u8 pci_write_u16(u8 pci_cmd, u32 address, u16 data)
++{
++	unsigned long irqflag;
++	PCI_DECLARE_MEASUREMENT;
++
++	/*
++	 * Wait for any previous write or pending read to complete.
++	 *
++	 * We use a global data block because once we write the request
++	 * we do not wait for it to complete before exiting.
++	 */
++	PCI_MEASUREMENT_START();
++	PCI_LOCK(&pci_master_lock, irqflag);
++	while (unlikely(pci_node->req == &req))
++		;
++	req.pci_address = address & ~2;
++	req.data = (u32)data;
++	req.data = cpu_to_le32((address & 2) ? (req.data << 16) : req.data);
++	req.cmd = pci_cmd;
++	req.byte_valid = (address & 2) ? 0xc : 0x3;
++	pci_node->req = &req;
++	pci_set_hrt_interrupt(pci_node);
++	PCI_UNLOCK(&pci_master_lock, irqflag);
++	PCI_MEASUREMENT_END(PCI_MEASUREMENT_WRITE16);
++	return PCI_RESP_OK;
++}
++
++/*
++ * pci_read_u8()
++ *	Synchronously read 8 bits from PCI space.
++ */
++u8 pci_read_u8(u8 pci_cmd, u32 address, u8 *data)
++{
++	u8 status;
++	unsigned long irqflag;
++
++	/*
++	 * Fill in the request.
++	 */
++	volatile struct pci_master_request lreq;
++	PCI_DECLARE_MEASUREMENT;
++
++	lreq.pci_address = address & ~3;
++	lreq.cmd = pci_cmd;
++	lreq.byte_valid = 1 << (address & 0x3);
++
++	/*
++	 * Wait for any previous request to complete and then make this request.
++	 */
++	PCI_MEASUREMENT_START();
++	PCI_LOCK(&pci_master_lock, irqflag);
++	while (unlikely(pci_node->req == &req))
++		;
++	pci_node->req = &lreq;
++	pci_set_hrt_interrupt(pci_node);
++	PCI_UNLOCK(&pci_master_lock, irqflag);
++
++	/*
++	 * Wait for the result to show up.
++	 */
++	while (unlikely(pci_node->req == &lreq))
++		;
++	status = lreq.status;
++	if (likely(status == PCI_RESP_OK)) {
++		*data = (u8)(lreq.data >> (24 - ((address & 0x3) << 3)));
++	} else
++		*data = 0;
++	PCI_MEASUREMENT_END(PCI_MEASUREMENT_READ8);
++	return status;
++}
++
++/*
++ * pci_write_u8()
++ *	Asyncrhnously or synchronously write 8 bits to PCI master space.
++ */
++u8 pci_write_u8(u8 pci_cmd, u32 address, u8 data)
++{
++	unsigned long irqflag;
++	PCI_DECLARE_MEASUREMENT;
++
++	/*
++	 * Wait for any previous write or pending read to complete.
++	 *
++	 * We use a global data block because once we write the request
++	 * we do not wait for it to complete before exiting.
++	 */
++	PCI_MEASUREMENT_START();
++	PCI_LOCK(&pci_master_lock, irqflag);
++	while (unlikely(pci_node->req == &req))
++		;
++	req.pci_address = address & ~3;
++	req.data = ((u32)data << (24 - ((address & 0x3) << 3)));
++	req.cmd = pci_cmd;
++	req.byte_valid = 1 << (address & 0x3);
++	pci_node->req = &req;
++	pci_set_hrt_interrupt(pci_node);
++	PCI_UNLOCK(&pci_master_lock, irqflag);
++	PCI_MEASUREMENT_END(PCI_MEASUREMENT_WRITE8);
++	return PCI_RESP_OK;
++}
++
++unsigned int ubi32_pci_read_u32(const volatile void __iomem *addr)
++{
++	unsigned int data;
++	pci_read_u32(PCI_CMD_MEM_READ, (u32)addr, &data);
++	return data;
++}
++EXPORT_SYMBOL(ubi32_pci_read_u32);
++
++unsigned short ubi32_pci_read_u16(const volatile void __iomem *addr)
++{
++	unsigned short data;
++	pci_read_u16(PCI_CMD_MEM_READ, (u32)addr, &data);
++	return data;
++}
++EXPORT_SYMBOL(ubi32_pci_read_u16);
++
++unsigned char  ubi32_pci_read_u8(const volatile void __iomem *addr)
++{
++	unsigned char  data;
++	pci_read_u8(PCI_CMD_MEM_READ, (u32)addr, &data);
++	return data;
++}
++EXPORT_SYMBOL(ubi32_pci_read_u8);
++
++void ubi32_pci_write_u32(unsigned int val, const volatile void __iomem *addr)
++{
++	pci_write_u32(PCI_CMD_MEM_WRITE, (u32)addr, val);
++}
++EXPORT_SYMBOL(ubi32_pci_write_u32);
++
++void ubi32_pci_write_u16(unsigned short val, const volatile void __iomem *addr)
++{
++	pci_write_u16(PCI_CMD_MEM_WRITE, (u32)addr, val);
++}
++EXPORT_SYMBOL(ubi32_pci_write_u16);
++
++void ubi32_pci_write_u8(unsigned char val, const void volatile __iomem *addr)
++{
++	pci_write_u8(PCI_CMD_MEM_WRITE, (u32)addr, val);
++}
++EXPORT_SYMBOL(ubi32_pci_write_u8);
++
++#if defined(CONFIG_DEBUG_PCIMEASURE)
++static unsigned int pci_cycles_to_nano(unsigned int cycles, unsigned int frequency)
++{
++	unsigned int nano = ((cycles * 1000) / (frequency / 1000000));
++	return nano;
++}
++
++/*
++ * pci_measurement_show()
++ *	Print out the min, avg, max values for each PCI transaction type.
++ *
++ * By request, the max value is reset after each dump.
++ */
++static int pci_measurement_show(struct seq_file *p, void *v)
++{
++	unsigned int min, avg, max;
++	unsigned int freq = processor_frequency();
++	int trans = *((loff_t *) v);
++
++	if (trans == 0) {
++		seq_puts(p, "min\tavg\tmax\t(nano-seconds)\n");
++	}
++
++	if (trans >= PCI_MEASUREMENT_LAST) {
++		return 0;
++	}
++
++	min = pci_cycles_to_nano(pci_measurements[trans].min, freq);
++	avg = pci_cycles_to_nano(pci_measurements[trans].avg, freq);
++	max = pci_cycles_to_nano(pci_measurements[trans].max, freq);
++	pci_measurements[trans].max = 0;
++	seq_printf(p, "%u\t%u\t%u\t%s\n", min, avg, max, pci_measurement_name_list[trans]);
++	return 0;
++}
++
++static void *pci_measurement_start(struct seq_file *f, loff_t *pos)
++{
++	return (*pos < PCI_MEASUREMENT_LAST) ? pos : NULL;
++}
++
++static void *pci_measurement_next(struct seq_file *f, void *v, loff_t *pos)
++{
++	(*pos)++;
++	if (*pos >= PCI_MEASUREMENT_LAST)
++		return NULL;
++	return pos;
++}
++
++static void pci_measurement_stop(struct seq_file *f, void *v)
++{
++	/* Nothing to do */
++}
++
++static const struct seq_operations pci_measurement_seq_ops = {
++	.start = pci_measurement_start,
++	.next  = pci_measurement_next,
++	.stop  = pci_measurement_stop,
++	.show  = pci_measurement_show,
++};
++
++static int pci_measurement_open(struct inode *inode, struct file *filp)
++{
++	return seq_open(filp, &pci_measurement_seq_ops);
++}
++
++static const struct file_operations pci_measurement_fops = {
++	.open		= pci_measurement_open,
++	.read		= seq_read,
++	.llseek		= seq_lseek,
++	.release	= seq_release,
++};
++
++static int __init pci_measurement_init(void)
++{
++	proc_create("pci_measurements", 0, NULL, &pci_measurement_fops);
++	return 0;
++}
++module_init(pci_measurement_init);
++#endif
++
++static int ubi32_pci_read_config(struct pci_bus *bus, unsigned int devfn,
++				 int where, int size, u32 *value)
++{
++	u8 cmd;
++	u32 addr;
++	u8  data8;
++	u16 data16;
++
++	u8 slot = PCI_SLOT(devfn);
++	u8 fn = PCI_FUNC(devfn);
++
++	if (slot > 1) {
++		return PCIBIOS_DEVICE_NOT_FOUND;
++	} else if (slot == 0) {
++		addr = PCI_DEV0_IDSEL + where;
++	} else {
++		addr = PCI_DEV1_IDSEL + where;
++	}
++
++	addr += (fn << 8);
++
++	cmd = PCI_CMD_CFG_READ;
++	if (size == 1) {
++		pci_read_u8(cmd, addr, &data8);
++		*value = (u32)data8;
++	} else if (size == 2) {
++		pci_read_u16(cmd, addr, &data16);
++		*value = (u32)data16;
++	} else {
++		pci_read_u32(cmd, addr, value);
++	}
++
++	return PCIBIOS_SUCCESSFUL;
++}
++
++static int ubi32_pci_write_config(struct pci_bus *bus, unsigned int devfn,
++				  int where, int size, u32 value)
++{
++	u8 cmd;
++	u32 addr;
++	u8 slot = PCI_SLOT(devfn);
++	u8 fn = PCI_FUNC(devfn);
++
++	if (slot > 1) {
++		return PCIBIOS_DEVICE_NOT_FOUND;
++	} else if (slot == 0) {
++		addr = PCI_DEV0_IDSEL + where;
++	} else {
++		addr = PCI_DEV1_IDSEL + where;
++	}
++
++	addr += (fn << 8);
++
++	cmd = PCI_CMD_CFG_WRITE;
++	if (size == 1) {
++		pci_write_u8(cmd, addr, (u8)value);
++	} else if (size == 2) {
++		pci_write_u16(cmd, addr, (u16)value);
++	} else {
++		pci_write_u32(cmd, addr, value);
++	}
++
++	return PCIBIOS_SUCCESSFUL;
++}
++
++int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size)
++{
++	return -EIO;
++}
++EXPORT_SYMBOL(pci_set_dma_max_seg_size);
++
++int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask)
++{
++	return -EIO;
++}
++EXPORT_SYMBOL(pci_set_dma_seg_boundary);
++
++void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
++{
++	resource_size_t start = pci_resource_start(dev, bar);
++	resource_size_t len   = pci_resource_len(dev, bar);
++	unsigned long flags = pci_resource_flags(dev, bar);
++
++	if (!len || !start) {
++		return NULL;
++	}
++
++	if (maxlen && len > maxlen) {
++		len = maxlen;
++	}
++
++	if (flags & IORESOURCE_IO) {
++		return ioport_map(start, len);
++	}
++
++	if (flags & IORESOURCE_MEM) {
++		if (flags & IORESOURCE_CACHEABLE) {
++			return ioremap(start, len);
++		}
++		return ioremap_nocache(start, len);
++	}
++	return NULL;
++}
++EXPORT_SYMBOL(pci_iomap);
++
++void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
++{
++	if ((unsigned long)addr >= VMALLOC_START &&
++	    (unsigned long)addr < VMALLOC_END) {
++		iounmap(addr);
++	}
++}
++EXPORT_SYMBOL(pci_iounmap);
++
++/*
++ *  From arch/arm/kernel/bios32.c
++ *
++ *  PCI bios-type initialisation for PCI machines
++ *
++ *  Bits taken from various places.
++ */
++static void __init pcibios_init_hw(struct hw_pci *hw)
++{
++	struct pci_sys_data *sys = NULL;
++	int ret;
++	int nr, busnr;
++
++	for (nr = busnr = 0; nr < hw->nr_controllers; nr++) {
++		sys = kzalloc(sizeof(struct pci_sys_data), GFP_KERNEL);
++		if (!sys)
++			panic("PCI: unable to allocate sys data!");
++
++		sys->hw      = hw;
++		sys->busnr   = busnr;
++		sys->map_irq = hw->map_irq;
++		sys->resource[0] = &ioport_resource;
++		sys->resource[1] = &iomem_resource;
++
++		ret = hw->setup(nr, sys);
++
++		if (ret > 0) {
++			sys->bus = hw->scan(nr, sys);
++
++			if (!sys->bus)
++				panic("PCI: unable to scan bus!");
++
++			busnr = sys->bus->subordinate + 1;
++
++			list_add(&sys->node, &hw->buses);
++		} else {
++			kfree(sys);
++			if (ret < 0)
++				break;
++		}
++	}
++}
++
++/*
++ * Swizzle the device pin each time we cross a bridge.
++ * This might update pin and returns the slot number.
++ */
++static u8 __devinit pcibios_swizzle(struct pci_dev *dev, u8 *pin)
++{
++	struct pci_sys_data *sys = dev->sysdata;
++	int slot = 0, oldpin = *pin;
++
++	if (sys->swizzle)
++		slot = sys->swizzle(dev, pin);
++
++	if (debug_pci)
++		printk("PCI: %s swizzling pin %d => pin %d slot %d\n",
++			pci_name(dev), oldpin, *pin, slot);
++	return slot;
++}
++
++/*
++ * Map a slot/pin to an IRQ.
++ */
++static int pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++	struct pci_sys_data *sys = dev->sysdata;
++	int irq = -1;
++
++	if (sys->map_irq)
++		irq = sys->map_irq(dev, slot, pin);
++
++	if (debug_pci)
++		printk("PCI: %s mapping slot %d pin %d => irq %d\n",
++			pci_name(dev), slot, pin, irq);
++
++	return irq;
++}
++
++void __init pci_common_init(struct hw_pci *hw)
++{
++	struct pci_sys_data *sys;
++
++	INIT_LIST_HEAD(&hw->buses);
++
++	if (hw->preinit)
++		hw->preinit();
++	pcibios_init_hw(hw);
++	if (hw->postinit)
++		hw->postinit();
++
++	pci_fixup_irqs(pcibios_swizzle, pcibios_map_irq);
++	list_for_each_entry(sys, &hw->buses, node) {
++		struct pci_bus *bus = sys->bus;
++		/*
++		 * Size the bridge windows.
++		 */
++		pci_bus_size_bridges(bus);
++		/*
++		 * Assign resources.
++		 */
++		pci_bus_assign_resources(bus);
++
++		/*
++		 * Tell drivers about devices found.
++		 */
++		pci_bus_add_devices(bus);
++	}
++}
++
++char * __init pcibios_setup(char *str)
++{
++	if (!strcmp(str, "debug")) {
++		debug_pci = 1;
++		return NULL;
++	}
++	return str;
++}
++
++/*
++ * From arch/i386/kernel/pci-i386.c:
++ *
++ * We need to avoid collisions with `mirrored' VGA ports
++ * and other strange ISA hardware, so we always want the
++ * addresses to be allocated in the 0x000-0x0ff region
++ * modulo 0x400.
++ *
++ * Why? Because some silly external IO cards only decode
++ * the low 10 bits of the IO address. The 0x00-0xff region
++ * is reserved for motherboard devices that decode all 16
++ * bits, so it's ok to allocate at, say, 0x2800-0x28ff,
++ * but we want to try to avoid allocating at 0x2900-0x2bff
++ * which might be mirrored at 0x0100-0x03ff..
++ */
++void pcibios_align_resource(void *data, struct resource *res,
++			    resource_size_t size, resource_size_t align)
++{
++	resource_size_t start = res->start;
++
++	if (res->flags & IORESOURCE_IO && start & 0x300)
++		start = (start + 0x3ff) & ~0x3ff;
++
++	res->start = (start + align - 1) & ~(align - 1);
++}
++
++
++void __devinit pcibios_update_irq(struct pci_dev *dev, int irq)
++{
++	if (debug_pci)
++		printk("PCI: Assigning IRQ %02d to %s\n", irq, pci_name(dev));
++	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
++}
++
++/*
++ * If the bus contains any of these devices, then we must not turn on
++ * parity checking of any kind.  Currently this is CyberPro 20x0 only.
++ */
++static inline int pdev_bad_for_parity(struct pci_dev *dev)
++{
++	return (dev->vendor == PCI_VENDOR_ID_INTERG &&
++		(dev->device == PCI_DEVICE_ID_INTERG_2000 ||
++		 dev->device == PCI_DEVICE_ID_INTERG_2010)) ||
++		(dev->vendor == PCI_VENDOR_ID_ITE &&
++		 dev->device == PCI_DEVICE_ID_ITE_8152);
++
++}
++
++/*
++ * Adjust the device resources from bus-centric to Linux-centric.
++ */
++static void __devinit
++pdev_fixup_device_resources(struct pci_sys_data *root, struct pci_dev *dev)
++{
++	resource_size_t offset;
++	int i;
++
++	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
++		if (dev->resource[i].start == 0)
++			continue;
++		if (dev->resource[i].flags & IORESOURCE_MEM)
++			offset = root->mem_offset;
++		else
++			offset = root->io_offset;
++
++		dev->resource[i].start += offset;
++		dev->resource[i].end   += offset;
++	}
++}
++
++static void __devinit
++pbus_assign_bus_resources(struct pci_bus *bus, struct pci_sys_data *root)
++{
++	struct pci_dev *dev = bus->self;
++	int i;
++
++	if (!dev) {
++		/*
++		 * Assign root bus resources.
++		 */
++		for (i = 0; i < 3; i++)
++			bus->resource[i] = root->resource[i];
++	}
++}
++
++/*
++ * pcibios_fixup_bus - Called after each bus is probed,
++ * but before its children are examined.
++ */
++void pcibios_fixup_bus(struct pci_bus *bus)
++{
++	struct pci_sys_data *root = bus->sysdata;
++	struct pci_dev *dev;
++	u16 features = PCI_COMMAND_SERR | PCI_COMMAND_PARITY |
++		PCI_COMMAND_FAST_BACK;
++
++	pbus_assign_bus_resources(bus, root);
++
++	/*
++	 * Walk the devices on this bus, working out what we can
++	 * and can't support.
++	 */
++	list_for_each_entry(dev, &bus->devices, bus_list) {
++		u16 status;
++
++		pdev_fixup_device_resources(root, dev);
++
++		pci_read_config_word(dev, PCI_STATUS, &status);
++
++		/*
++		 * If any device on this bus does not support fast back
++		 * to back transfers, then the bus as a whole is not able
++		 * to support them.  Having fast back to back transfers
++		 * on saves us one PCI cycle per transaction.
++		 */
++		if (!(status & PCI_STATUS_FAST_BACK))
++			features &= ~PCI_COMMAND_FAST_BACK;
++
++		if (pdev_bad_for_parity(dev))
++			features &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
++
++		switch (dev->class >> 8) {
++		case PCI_CLASS_BRIDGE_PCI:
++			pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &status);
++			status |= PCI_BRIDGE_CTL_PARITY |
++				PCI_BRIDGE_CTL_MASTER_ABORT;
++			status &= ~(PCI_BRIDGE_CTL_BUS_RESET |
++				    PCI_BRIDGE_CTL_FAST_BACK);
++			pci_write_config_word(dev, PCI_BRIDGE_CONTROL, status);
++			break;
++
++		case PCI_CLASS_BRIDGE_CARDBUS:
++			pci_read_config_word(dev, PCI_CB_BRIDGE_CONTROL,
++					     &status);
++			status |= PCI_CB_BRIDGE_CTL_PARITY |
++				PCI_CB_BRIDGE_CTL_MASTER_ABORT;
++			pci_write_config_word(dev, PCI_CB_BRIDGE_CONTROL,
++					      status);
++			break;
++		}
++	}
++
++	/*
++	 * Now walk the devices again, this time setting them up.
++	 */
++	list_for_each_entry(dev, &bus->devices, bus_list) {
++		u16 cmd;
++
++		pci_read_config_word(dev, PCI_COMMAND, &cmd);
++		cmd |= features;
++		pci_write_config_word(dev, PCI_COMMAND, cmd);
++
++		pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
++				      L1_CACHE_BYTES >> 2);
++	}
++
++	/*
++	 * Propagate the flags to the PCI bridge.
++	 */
++	if (bus->self && bus->self->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
++		if (features & PCI_COMMAND_FAST_BACK)
++			bus->bridge_ctl |= PCI_BRIDGE_CTL_FAST_BACK;
++		if (features & PCI_COMMAND_PARITY)
++			bus->bridge_ctl |= PCI_BRIDGE_CTL_PARITY;
++	}
++
++	/*
++	 * Report what we did for this bus
++	 */
++	printk(KERN_INFO "PCI: bus%d: Fast back to back transfers %sabled\n",
++		bus->number, (features & PCI_COMMAND_FAST_BACK) ? "en" : "dis");
++}
++/*
++ * Convert from Linux-centric to bus-centric addresses for bridge devices.
++ */
++void
++pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
++			 struct resource *res)
++{
++	struct pci_sys_data *root = dev->sysdata;
++	unsigned long offset = 0;
++
++	if (res->flags & IORESOURCE_IO)
++		offset = root->io_offset;
++	if (res->flags & IORESOURCE_MEM)
++		offset = root->mem_offset;
++
++	region->start = res->start - offset;
++	region->end   = res->end - offset;
++}
++
++void __devinit
++pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
++			struct pci_bus_region *region)
++{
++	struct pci_sys_data *root = dev->sysdata;
++	unsigned long offset = 0;
++
++	if (res->flags & IORESOURCE_IO)
++		offset = root->io_offset;
++	if (res->flags & IORESOURCE_MEM)
++		offset = root->mem_offset;
++
++	res->start = region->start + offset;
++	res->end   = region->end + offset;
++}
++
++#ifdef CONFIG_HOTPLUG
++EXPORT_SYMBOL(pcibios_fixup_bus);
++EXPORT_SYMBOL(pcibios_resource_to_bus);
++EXPORT_SYMBOL(pcibios_bus_to_resource);
++#endif
++
++/**
++ * pcibios_enable_device - Enable I/O and memory.
++ * @dev: PCI device to be enabled
++ */
++int pcibios_enable_device(struct pci_dev *dev, int mask)
++{
++	u16 cmd, old_cmd;
++	int idx;
++	struct resource *r;
++
++	pci_read_config_word(dev, PCI_COMMAND, &cmd);
++	old_cmd = cmd;
++	for (idx = 0; idx < 6; idx++) {
++		/* Only set up the requested stuff */
++		if (!(mask & (1 << idx)))
++			continue;
++
++		r = dev->resource + idx;
++		if (!r->start && r->end) {
++			printk(KERN_ERR "PCI: Device %s not available because"
++			       " of resource collisions\n", pci_name(dev));
++			return -EINVAL;
++		}
++		if (r->flags & IORESOURCE_IO)
++			cmd |= PCI_COMMAND_IO;
++		if (r->flags & IORESOURCE_MEM)
++			cmd |= PCI_COMMAND_MEMORY;
++	}
++
++	/*
++	 * Bridges (eg, cardbus bridges) need to be fully enabled
++	 */
++	if ((dev->class >> 16) == PCI_BASE_CLASS_BRIDGE)
++		cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
++
++	if (cmd != old_cmd) {
++		printk("PCI: enabling device %s (%04x -> %04x)\n",
++		       pci_name(dev), old_cmd, cmd);
++		pci_write_config_word(dev, PCI_COMMAND, cmd);
++	}
++	return 0;
++}
++
++
++struct pci_ops ubi32_pci_ops = {
++	.read   = ubi32_pci_read_config,
++	.write  = ubi32_pci_write_config,
++};
++
++static struct pci_bus *ubi32_pci_scan_bus(int nr, struct pci_sys_data *sys)
++{
++	return pci_scan_bus(sys->busnr, &ubi32_pci_ops, sys);
++}
++
++#define UBI32_PCI_MEM_BASE PCI_DEV_REG_BASE
++#define UBI32_PCI_MEM_LEN  0x80000000
++
++#define UBI32_PCI_IO_BASE 0x0
++#define UBI32_PCI_IO_END  0x0
++
++static struct resource ubi32_pci_mem = {
++	.name	= "PCI memory space",
++	.start	= UBI32_PCI_MEM_BASE,
++	.end	= UBI32_PCI_MEM_BASE + UBI32_PCI_MEM_LEN - 1,
++	.flags	= IORESOURCE_MEM,
++};
++
++static struct resource ubi32_pci_io = {
++	.name	= "PCI IO space",
++	.start	= UBI32_PCI_IO_BASE,
++	.end	= UBI32_PCI_IO_END,
++	.flags	= IORESOURCE_IO,
++};
++
++static int __init ubi32_pci_setup(int nr, struct pci_sys_data *sys)
++{
++	if (nr > 0)
++		return 0;
++
++	request_resource(&iomem_resource, &ubi32_pci_mem);
++	request_resource(&ioport_resource, &ubi32_pci_io);
++
++	sys->resource[0] = &ubi32_pci_io;
++	sys->resource[1] = &ubi32_pci_mem;
++	sys->resource[2] = NULL;
++
++	return 1;
++}
++
++static void __init ubi32_pci_preinit(void)
++{
++}
++
++static int __init ubi32_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++	return pci_node->dn.recvirq;
++}
++
++struct hw_pci ubi32_pci __initdata = {
++	.nr_controllers	= 1,
++	.preinit	= ubi32_pci_preinit,
++	.setup		= ubi32_pci_setup,
++	.scan		= ubi32_pci_scan_bus,
++	.map_irq	= ubi32_pci_map_irq,
++};
++
++static int __init ubi32_pci_init(void)
++{
++	pci_node = (struct pci_devnode *)devtree_find_node("pci");
++	if (pci_node == NULL) {
++		printk(KERN_WARNING "PCI init failed\n");
++		return -ENOSYS;
++	}
++	pci_common_init(&ubi32_pci);
++	return 0;
++}
++
++subsys_initcall(ubi32_pci_init);
++
++/*
++ * workaround for dual PCI card interrupt
++ */
++#define PCI_COMMON_INT_BIT (1 << 19)
++void ubi32_pci_int_wr(void)
++{
++	volatile unsigned int pci_int_line;
++	pci_int_line = UBICOM32_IO_PORT(RB)->gpio_in;
++	if (!(pci_int_line & PCI_COMMON_INT_BIT))
++	{
++		ubicom32_set_interrupt(pci_node->dn.recvirq);
++	}
++}
++EXPORT_SYMBOL(ubi32_pci_int_wr);
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ring_tio.c
+@@ -0,0 +1,123 @@
++/*
++ * arch/ubicom32/mach-common/ring_tio.c
++ *   Generic initialization for UIO Ubicom32 Ring
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/platform_device.h>
++#include <linux/types.h>
++
++#include <asm/devtree.h>
++#include <asm/ring_tio.h>
++
++static const char *ring_tio_driver_name = "uio_ubicom32ring";
++
++/*
++ * The number of ring_tio's currently allocated, used for .id
++ */
++static int __initdata ring_tio_count;
++
++/*
++ * The maximum number of resources that the ring_tio will have.
++ * Currently 3, a register space, and up to 2 interrupts.
++ */
++#define RING_TIO_MAX_RESOURCES	3
++
++/*
++ * ring_tio_init
++ *	Checks the device tree and instantiates the driver if found
++ */
++void __init ring_tio_init(const char *node_name)
++{
++	struct platform_device *pdev;
++	struct resource *res;
++	int resource_idx = 0;
++	struct ring_tio_node *ring_node;
++
++	/*
++	 * Check the device tree for the ring_tio
++	 */
++	ring_node = (struct ring_tio_node *)devtree_find_node(node_name);
++	if (!ring_node) {
++		printk(KERN_WARNING "Ring TIO '%s' not found\n", node_name);
++		return;
++	}
++
++	if (ring_node->version != RING_TIO_NODE_VERSION) {
++		printk(KERN_WARNING "ring_tio not compatible\n");
++		return;
++	}
++
++	/*
++	 * Dynamically create the platform_device structure and resources
++	 */
++	pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL);
++	if (!pdev) {
++		printk(KERN_WARNING "ring_tio could not alloc pdev\n");
++		return;
++	}
++
++	res = kzalloc(sizeof(struct resource) * RING_TIO_MAX_RESOURCES,
++			GFP_KERNEL);
++	if (!res) {
++		kfree(pdev);
++		printk(KERN_WARNING "ring_tio could not alloc res\n");
++		return;
++	}
++
++	pdev->name = ring_tio_driver_name;
++	pdev->id = ring_tio_count++;
++	pdev->resource = res;
++
++	/*
++	 * Fill in the resources and platform data from devtree information
++	 */
++	res[resource_idx].start = (u32_t)(ring_node->regs);
++	res[resource_idx].end = (u32_t)(ring_node->regs);
++	res[resource_idx].flags = IORESOURCE_MEM;
++	resource_idx++;
++
++	if (ring_node->dn.sendirq != 0xFF) {
++		res[resource_idx].start = ring_node->dn.sendirq;
++		res[resource_idx].flags = IORESOURCE_IRQ;
++		resource_idx++;
++	}
++
++	if (ring_node->dn.recvirq != 0xFF) {
++		res[resource_idx].start = ring_node->dn.recvirq;
++		res[resource_idx].flags = IORESOURCE_IRQ;
++		resource_idx++;
++	}
++	pdev->num_resources = resource_idx;
++
++	printk(KERN_INFO "RingTIO.%d '%s' found irq=%d/%d regs=%p pdev=%p/%p\n",
++		ring_tio_count - 1, node_name, ring_node->dn.sendirq,
++		ring_node->dn.recvirq, ring_node->regs, pdev, res);
++
++	/*
++	 * Try to get the device registered
++	 */
++	pdev->dev.platform_data = (void *)node_name;
++	if (platform_device_register(pdev) < 0) {
++		printk(KERN_WARNING "Ring failed to register\n");
++		kfree(pdev);
++		kfree(res);
++	}
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ubi32-gpio.c
+@@ -0,0 +1,411 @@
++/*
++ * arch/ubicom32/mach-common/ubi32-gpio.c
++ *   Ubicom gpio driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/errno.h>
++#include <linux/kernel.h>
++#include <linux/io.h>
++#include <linux/gpio.h>
++#include <linux/irq.h>
++#include <linux/version.h>
++
++#if defined(CONFIG_PROC_FS)
++#include <linux/proc_fs.h>
++#endif
++
++#include <linux/io.h>
++#include <asm/ip5000.h>
++#include <linux/gpio.h>
++
++#define UBI_GPIO_CHECK_RANGE     0  /* !0 enables range checking */
++
++
++/*
++ * Each I/O port can be configured to operate in one of several
++ * functional modes. One of these modes is GPIO, which causes the
++ * entire port to function as a GPIO port.  Since the various port
++ * registers serve the system with other important functions, such as
++ * ethernet, serial, USB, etc., it isn't advantageous to set any of
++ * the ports to be entirely dedicated for GPIO use.  The processor
++ * alternatively allows individual bits of a port to be assigned to be
++ * used as GPIO independently from the overall port function.  This
++ * bit-by-bit assignment is selected by setting the corresponding bit
++ * in the port's gpio_mask register.  When set, the selected bit is
++ * then enabled as a GPIO.  If the corresponding bit is set in the
++ * gpio_ctl register of the port, the bit is configured as a GPIO
++ * output.  Otherwise, it is an input.
++ *
++ * NOTE: This driver uses the bit-by-bit GPIO function assignment
++ * exclusively and *never* sets the port function registers to the
++ * GPIO function.
++ *
++ * GPIO is not the main function of any of the I/O ports.  The port
++ * bit widths are variable from one port to the next, determined by
++ * the more common I/O functions of the ports.  For simplicity, this
++ * driver assumes all the ports are 32 bits wide regardless of the
++ * real bit width of the port.  GPIO bits are numbered from zero to
++ * MAX_UBICOM_GPIOS.  Within a port, the least significant bit is
++ * numbered bit zero, the most significant is bit 31.  Since the ports
++ * are considered logically contiguous, GPIO #32 is the zeroth bit in
++ * port #1, and so on.  Due to the hardware definition, there are
++ * large gaps in the GPIO numbers representing real pins.
++ *
++ * NOTE: It is up to the programmer to refer to the processor data
++ * sheet to determine which bits in which ports can be accessed and
++ * used for GPIO.
++ *
++ */
++
++
++/* There are 9 ports, A through I. Not all 32 bits in each
++ * port can be a GPIO, but we pretend they are.  Its up to the
++ * programmer to refer to the processor data sheet.
++ */
++#define MAX_UBICOM_GPIOS   (9 * 32) /* ARCH_NR_GPIOS */
++#define NUM_GPIO_PORTS     (gpio_bank(MAX_UBICOM_GPIOS))
++
++
++/* GPIO reservation bit map array */
++static int reserved_gpio_map[NUM_GPIO_PORTS];
++
++
++/* Array of hardware io_port addresses */
++static struct ubicom32_io_port *gpio_bank_addr[NUM_GPIO_PORTS] =
++{
++	UBICOM32_IO_PORT(RA),
++	UBICOM32_IO_PORT(RB),
++	UBICOM32_IO_PORT(RC),
++	UBICOM32_IO_PORT(RD),
++	UBICOM32_IO_PORT(RE),
++	UBICOM32_IO_PORT(RF),
++	UBICOM32_IO_PORT(RG),
++	UBICOM32_IO_PORT(RH),
++	UBICOM32_IO_PORT(RI)
++};
++
++
++struct ubi_gpio_chip {
++	/*
++	 * Right now, nothing else lives here.
++	 */
++	struct gpio_chip gpio_chip;
++};
++
++
++#if UBI_GPIO_CHECK_RANGE
++inline int check_gpio(unsigned gpio)
++{
++	if (gpio >= MAX_UBICOM_GPIOS)
++		return -EINVAL;
++	return 0;
++}
++#else
++#define check_gpio(n)   (0)
++#endif
++
++/*
++ * ubi_gpio_get_port
++ *	Get the IO port associated with a certain gpio
++ */
++struct ubicom32_io_port *ubi_gpio_get_port(unsigned gpio)
++{
++	if (gpio_bank(gpio) > NUM_GPIO_PORTS) {
++		return NULL;
++	}
++	return gpio_bank_addr[gpio_bank(gpio)];
++}
++
++/*
++ * ubi_gpio_error()
++ */
++static void ubi_gpio_error(unsigned gpio)
++{
++	printk(KERN_ERR "ubicom-gpio: GPIO %d wasn't requested!\n", gpio);
++}
++
++/*
++ * ubi_port_setup()
++ */
++static void ubi_port_setup(unsigned gpio, unsigned short usage)
++{
++	if (!check_gpio(gpio)) {
++		if (usage) {
++			UBICOM32_GPIO_ENABLE(gpio);
++		} else {
++			UBICOM32_GPIO_DISABLE(gpio);
++		}
++	}
++}
++
++/*
++ * ubi_gpio_request()
++ */
++static int ubi_gpio_request(struct gpio_chip *chip, unsigned gpio)
++{
++	unsigned long flags;
++
++	if (check_gpio(gpio) < 0)
++		return -EINVAL;
++
++	local_irq_save(flags);
++
++	if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
++		printk(KERN_ERR "ubi-gpio: GPIO %d is already reserved!\n",
++		       gpio);
++		local_irq_restore(flags);
++		return -EBUSY;
++	}
++
++	reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio);
++
++	ubi_port_setup(gpio, 1);
++
++	local_irq_restore(flags);
++
++	return 0;
++}
++
++/*
++ * ubi_gpio_free()
++ */
++static void ubi_gpio_free(struct gpio_chip *chip, unsigned gpio)
++{
++	unsigned long flags;
++
++	if (check_gpio(gpio) < 0)
++		return;
++
++	local_irq_save(flags);
++
++	if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
++		ubi_gpio_error(gpio);
++		local_irq_restore(flags);
++		return;
++	}
++
++	/* Assert the pin is no longer claimed */
++	reserved_gpio_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
++
++	/* Revert port bit to use specified by port->function */
++	ubi_port_setup(gpio, 0);
++
++	local_irq_restore(flags);
++}
++
++/*
++ * ubi_gpio_direction_input()
++ */
++static int ubi_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
++{
++	unsigned long flags;
++
++	if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
++		ubi_gpio_error(gpio);
++		return -EINVAL;
++	}
++
++	local_irq_save(flags);
++
++	/* Configure pin as gpio */
++	ubi_port_setup(gpio, 1);
++
++	/* Assert pin is an input */
++	UBICOM32_GPIO_SET_PIN_INPUT(gpio);
++
++	local_irq_restore(flags);
++
++	return 0;
++}
++
++
++/*
++ * ubi_gpio_direction_output()
++ */
++static int ubi_gpio_direction_output(struct gpio_chip *chip,
++				     unsigned gpio, int value)
++{
++	unsigned long flags;
++
++	if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
++		ubi_gpio_error(gpio);
++		return -EINVAL;
++	}
++
++	local_irq_save(flags);
++
++	/* Configure pin as gpio and set initial value in gpio_out register
++	 * so that when we enable it as an output, it will have the correct
++	 * initial value.
++	 */
++	ubi_port_setup(gpio, 1);
++	if (value) {
++		UBICOM32_GPIO_SET_PIN_HIGH(gpio);
++	} else {
++		UBICOM32_GPIO_SET_PIN_LOW(gpio);
++	}
++
++	/* Enable the pin as an output */
++	UBICOM32_GPIO_SET_PIN_OUTPUT(gpio);
++
++	local_irq_restore(flags);
++
++	return 0;
++}
++
++
++/*
++ * ubi_gpio_get_value()
++ */
++static int ubi_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
++{
++	return 0 != (gpio_bank_addr[gpio_bank(gpio)]->gpio_in & gpio_bit(gpio));
++}
++
++
++/*
++ * ubi_gpio_set_value()
++ */
++static void ubi_gpio_set_value(struct gpio_chip *chip, unsigned gpio,
++			       int arg)
++{
++	unsigned long flags;
++	local_irq_save(flags);
++
++	if (arg) {
++		UBICOM32_GPIO_SET_PIN_HIGH(gpio);
++	} else {
++		UBICOM32_GPIO_SET_PIN_LOW(gpio);
++	}
++
++	local_irq_restore(flags);
++}
++
++
++/*
++ * ubi_gpio_to_irq()
++ */
++static int ubi_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
++{
++	return gpio_to_irq(gpio);
++}
++
++
++/*
++ * ubi_gpio_init()
++ */
++int __init ubi_gpio_init(void)
++{
++	int k;
++	int status;
++	struct ubi_gpio_chip *chip;
++	struct gpio_chip *gc;
++
++	printk(KERN_INFO "Ubicom GPIO Controller\n");
++
++	chip = kzalloc(sizeof(struct ubi_gpio_chip), GFP_KERNEL);
++	if (chip == NULL)
++		return -ENOMEM;
++
++	gc = &chip->gpio_chip;
++	gc->request          = ubi_gpio_request;
++	gc->free             = ubi_gpio_free;
++	gc->to_irq           = ubi_gpio_to_irq;
++	gc->direction_input  = ubi_gpio_direction_input;
++	gc->direction_output = ubi_gpio_direction_output;
++	gc->get              = ubi_gpio_get_value;
++	gc->set              = ubi_gpio_set_value;
++	gc->can_sleep        = 0;
++	gc->base             = 0;
++	gc->ngpio            = MAX_UBICOM_GPIOS; /* ARCH_NR_GPIOS - 1 */
++	gc->label            = "ubi_gpio";
++
++	status = gpiochip_add(gc);
++	if (status != 0) {
++		kfree(chip);
++		return status;
++	}
++
++	/* Assert all pins are free */
++	for (k = 0; k < NUM_GPIO_PORTS; k++) {
++		reserved_gpio_map[k] = 0;
++	}
++
++	return 0;
++}
++
++#if defined(CONFIG_PROC_FS)
++/*
++ * ubi_get_gpio_dir()
++ */
++static int ubi_get_gpio_dir(unsigned gpio)
++{
++	if (gpio_bank_addr[gpio_bank(gpio)]->gpio_ctl & gpio_bit(gpio))
++		return 1;
++	else
++		return 0;
++}
++
++/*
++ * gpio_proc_read()
++ */
++static int ubi_gpio_proc_read(char *buf, char **start, off_t offset,
++			  int len, int *unused_i, void *unused_v)
++{
++	int c, outlen = 0;
++
++	for (c = 0; c < MAX_UBICOM_GPIOS; c++) {
++		if (!check_gpio(c) &&
++		    (reserved_gpio_map[gpio_bank(c)] & gpio_bit(c))) {
++			len = sprintf(buf, "GPIO_%d:\t\tGPIO %s\n", c,
++				      ubi_get_gpio_dir(c) ? "OUTPUT" : "INPUT");
++		} else {
++			continue;
++		}
++
++		buf += len;
++		outlen += len;
++	}
++	return outlen;
++}
++
++/*
++ * ubi_gpio_register_proc()
++ */
++static __init int ubi_gpio_register_proc(void)
++{
++	struct proc_dir_entry *proc_gpio;
++
++	proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL);
++	if (proc_gpio)
++		proc_gpio->read_proc = ubi_gpio_proc_read;
++
++	return proc_gpio != NULL;
++}
++device_initcall(ubi_gpio_register_proc);
++#endif
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ubicom32hid.c
+@@ -0,0 +1,557 @@
++/*
++ * arch/ubicom32/mach-common/ubicom32hid.c
++ *   I2C driver for HID coprocessor found on some DPF implementations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/gpio.h>
++#include <linux/delay.h>
++#include <linux/platform_device.h>
++#include <linux/i2c.h>
++#include <linux/backlight.h>
++#include <linux/fb.h>
++#include <linux/input.h>
++#include <linux/input-polldev.h>
++
++#include <asm/ubicom32hid.h>
++
++#define DRIVER_NAME "ubicom32hid"
++
++#ifdef DEBUG
++static int ubicom32hid_debug;
++#endif
++
++static const struct i2c_device_id ubicom32hid_id[] = {
++	{ DRIVER_NAME, },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, ubicom32hid_id);
++
++/*
++ * Define this to make IR checking strict, in general, it's not needed
++ */
++#undef UBICOM32HID_STRICT_IR_CHECK
++
++#define UBICOM32HID_CMD_SET_PWM		0x01
++#define UBICOM32HID_CMD_SET_BL_EN	0x02
++#define UBICOM32HID_BL_EN_LOW		0x00
++#define UBICOM32HID_BL_EN_HIZ		0x01
++#define UBICOM32HID_BL_EN_HI		0x02
++#define UBICOM32HID_CMD_FLUSH		0x99
++#define UBICOM32HID_CMD_RESET		0x99
++#define UBICOM32HID_CMD_GET_IR_SWITCH	0xC0
++#define UBICOM32HID_CMD_GET_REVISION	0xfd
++#define UBICOM32HID_CMD_GET_DEVICE_ID	0xfe
++#define UBICOM32HID_CMD_GET_VERSION	0xff
++#define UBICOM32HID_DEVICE_ID		0x49
++
++#define UBICOM32HID_MAX_BRIGHTNESS_PWM	255
++
++/*
++ * Data structure returned by the HID device
++ */
++struct ubicom32hid_input_data {
++	uint32_t	ircmd;
++	uint8_t		sw_state;
++	uint8_t		sw_changed;
++};
++
++/*
++ * Our private data
++ */
++struct ubicom32hid_data {
++	/*
++	 * Pointer to the platform data structure, we need the settings.
++	 */
++	const struct ubicom32hid_platform_data	*pdata;
++
++	/*
++	 * Backlight device
++	 */
++	struct backlight_device			*bldev;
++
++	/*
++	 * I2C client, for sending messages to the HID device
++	 */
++	struct i2c_client			*client;
++
++	/*
++	 * Current intensity, used for get_intensity.
++	 */
++	int					cur_intensity;
++
++	/*
++	 * Input subsystem
++	 *	We won't register an input subsystem if there are no mappings.
++	 */
++	struct input_polled_dev			*poll_dev;
++};
++
++
++/*
++ * ubicom32hid_set_intensity
++ */
++static int ubicom32hid_set_intensity(struct backlight_device *bd)
++{
++	struct ubicom32hid_data *ud =
++		(struct ubicom32hid_data *)bl_get_data(bd);
++	int intensity = bd->props.brightness;
++	int reg;
++	u8_t val;
++	int ret;
++
++	/*
++	 * If we're blanked the the intensity doesn't matter.
++	 */
++	if ((bd->props.power != FB_BLANK_UNBLANK) ||
++	    (bd->props.fb_blank != FB_BLANK_UNBLANK)) {
++		intensity = 0;
++	}
++
++	/*
++	 * Set the brightness based on the type of backlight
++	 */
++	if (ud->pdata->type == UBICOM32HID_BL_TYPE_BINARY) {
++		reg = UBICOM32HID_CMD_SET_BL_EN;
++		if (intensity) {
++			val = ud->pdata->invert
++				? UBICOM32HID_BL_EN_LOW : UBICOM32HID_BL_EN_HI;
++		} else {
++			val = ud->pdata->invert
++				? UBICOM32HID_BL_EN_HI : UBICOM32HID_BL_EN_LOW;
++		}
++	} else {
++		reg = UBICOM32HID_CMD_SET_PWM;
++		val = ud->pdata->invert
++			? (UBICOM32HID_MAX_BRIGHTNESS_PWM - intensity) :
++			intensity;
++	}
++
++	/*
++	 * Send the command
++	 */
++	ret = i2c_smbus_write_byte_data(ud->client, reg, val);
++	if (ret < 0) {
++		dev_warn(&ud->client->dev, "Unable to write backlight err=%d\n",
++			 ret);
++		return ret;
++	}
++
++	ud->cur_intensity = intensity;
++
++	return 0;
++}
++
++/*
++ * ubicom32hid_get_intensity
++ *	Return the current intensity of the backlight.
++ */
++static int ubicom32hid_get_intensity(struct backlight_device *bd)
++{
++	struct ubicom32hid_data *ud =
++		(struct ubicom32hid_data *)bl_get_data(bd);
++
++	return ud->cur_intensity;
++}
++
++/*
++ * ubicom32hid_verify_data
++ *	Verify the data to see if there is any action to be taken
++ *
++ * Returns 0 if no action is to be taken, non-zero otherwise
++ */
++static int ubicom32hid_verify_data(struct ubicom32hid_data *ud,
++				   struct ubicom32hid_input_data *data)
++{
++	uint8_t *ircmd = (uint8_t *)&(data->ircmd);
++
++	/*
++	 * ircmd == DEADBEEF means ir queue is empty.  Since this is a
++	 * meaningful code, that means the rest of the message is most likely
++	 * correct, so only process the data if the switch state has changed.
++	 */
++	if (data->ircmd == 0xDEADBEEF) {
++		return data->sw_changed != 0;
++	}
++
++	/*
++	 * We have an ircmd which is not empty:
++	 *      Data[1] should be the complement of Data[0]
++	 */
++	if (ircmd[0] != (u8_t)~ircmd[1]) {
++		return 0;
++	}
++
++#ifdef UBICOM32HID_STRICT_IR_CHECK
++	/*
++	 * It seems that some remote controls don't follow the NEC protocol
++	 * properly, so only do this check if the remote does indeed follow the
++	 * spec.  Data[3] should be the complement of Data[2]
++	 */
++	if (ircmd[2] == (u8_t)~ircmd[3]) {
++		return 1;
++	}
++
++	/*
++	 * For non-compliant remotes, check the system code according to what
++	 * they send.
++	 */
++	if ((ircmd[2] != UBICOM32HID_IR_SYSTEM_CODE_CHECK) ||
++	    (ircmd[3] != UBICOM32HID_IR_SYSTEM_CODE)) {
++		return 0;
++	}
++#endif
++
++	/*
++	 * Data checks out, process
++	 */
++	return 1;
++}
++
++/*
++ * ubicom32hid_poll_input
++ *	Poll the input from the HID device.
++ */
++static void ubicom32hid_poll_input(struct input_polled_dev *dev)
++{
++	struct ubicom32hid_data *ud = (struct ubicom32hid_data *)dev->private;
++	const struct ubicom32hid_platform_data *pdata = ud->pdata;
++	struct ubicom32hid_input_data data;
++	struct input_dev *id = dev->input;
++	int i;
++	int sync_needed = 0;
++	uint8_t cmd;
++	int ret;
++
++	/*
++	 * Flush the queue
++	 */
++	cmd = UBICOM32HID_CMD_FLUSH;
++	ret = i2c_master_send(ud->client, &cmd, 1);
++	if (ret < 0) {
++		return;
++	}
++
++	ret = i2c_smbus_read_i2c_block_data(
++		ud->client, UBICOM32HID_CMD_GET_IR_SWITCH, 6, (void *)&data);
++	if (ret < 0) {
++		return;
++	}
++
++	/*
++	 * Verify the data to see if there is any action to be taken
++	 */
++	if (!ubicom32hid_verify_data(ud, &data)) {
++		return;
++	}
++
++#ifdef DEBUG
++	if (ubicom32hid_debug) {
++		printk("Polled ircmd=%8x swstate=%2x swchanged=%2x\n",
++		       data.ircmd, data.sw_state, data.sw_changed);
++	}
++#endif
++
++	/*
++	 * Process changed switches
++	 */
++	if (data.sw_changed) {
++		const struct ubicom32hid_button *ub = pdata->buttons;
++		for (i = 0; i < pdata->nbuttons; i++, ub++) {
++			uint8_t mask = (1 << ub->bit);
++			if (!(data.sw_changed & mask)) {
++				continue;
++			}
++
++			sync_needed = 1;
++			input_event(id, ub->type, ub->code,
++				    (data.sw_state & mask) ? 1 : 0);
++		}
++	}
++	if (sync_needed) {
++		input_sync(id);
++	}
++
++	/*
++	 * Process ir codes
++	 */
++	if (data.ircmd != 0xDEADBEEF) {
++		const struct ubicom32hid_ir *ui = pdata->ircodes;
++		for (i = 0; i < pdata->nircodes; i++, ui++) {
++			if (ui->ir_code == data.ircmd) {
++				/*
++				 * Simulate a up/down event
++				 */
++				input_event(id, ui->type, ui->code, 1);
++				input_sync(id);
++				input_event(id, ui->type, ui->code, 0);
++				input_sync(id);
++			}
++		}
++	}
++}
++
++
++/*
++ * Backlight ops
++ */
++static struct backlight_ops ubicom32hid_blops = {
++	.get_brightness = ubicom32hid_get_intensity,
++	.update_status  = ubicom32hid_set_intensity,
++};
++
++/*
++ * ubicom32hid_probe
++ */
++static int ubicom32hid_probe(struct i2c_client *client,
++			     const struct i2c_device_id *id)
++{
++	struct ubicom32hid_platform_data *pdata;
++	struct ubicom32hid_data *ud;
++	int ret;
++	int i;
++	u8 version[2];
++	char buf[1];
++
++	pdata = client->dev.platform_data;
++	if (pdata == NULL) {
++		return -ENODEV;
++	}
++
++	/*
++	 * See if we even have a device available before allocating memory.
++	 *
++	 * Hard reset the device
++	 */
++	ret = gpio_request(pdata->gpio_reset, "ubicom32hid-reset");
++	if (ret < 0) {
++		return ret;
++	}
++	gpio_direction_output(pdata->gpio_reset, pdata->gpio_reset_polarity);
++	udelay(100);
++	gpio_set_value(pdata->gpio_reset, !pdata->gpio_reset_polarity);
++	udelay(100);
++
++	/*
++	 * soft reset the device.  It sometimes takes a while to do this.
++	 */
++	for (i = 0; i < 50; i++) {
++		buf[0] = UBICOM32HID_CMD_RESET;
++		ret = i2c_master_send(client, buf, 1);
++		if (ret > 0) {
++			break;
++		}
++		udelay(10000);
++	}
++	if (i == 50) {
++		dev_warn(&client->dev, "Unable to reset device\n");
++		goto fail;
++	}
++
++	ret = i2c_smbus_read_byte_data(client, UBICOM32HID_CMD_GET_DEVICE_ID);
++	if (ret != UBICOM32HID_DEVICE_ID) {
++		dev_warn(&client->dev, "Incorrect device id %02x\n", buf[0]);
++		ret = -ENODEV;
++		goto fail;
++	}
++
++	ret = i2c_smbus_read_byte_data(client, UBICOM32HID_CMD_GET_VERSION);
++	if (ret < 0) {
++		dev_warn(&client->dev, "Unable to get version\n");
++		goto fail;
++	}
++	version[0] = ret;
++
++	ret = i2c_smbus_read_byte_data(client, UBICOM32HID_CMD_GET_REVISION);
++	if (ret < 0) {
++		dev_warn(&client->dev, "Unable to get revision\n");
++		goto fail;
++	}
++	version[1] = ret;
++
++	/*
++	 * Allocate our private data
++	 */
++	ud = kzalloc(sizeof(struct ubicom32hid_data), GFP_KERNEL);
++	if (!ud) {
++		ret = -ENOMEM;
++		goto fail;
++	}
++	ud->pdata = pdata;
++	ud->client = client;
++
++	/*
++	 * Register our backlight device
++	 */
++	ud->bldev = backlight_device_register(DRIVER_NAME, &client->dev,
++					      ud, &ubicom32hid_blops);
++	if (IS_ERR(ud->bldev)) {
++		ret = PTR_ERR(ud->bldev);
++		goto fail2;
++	}
++	platform_set_drvdata(client, ud);
++
++	/*
++	 * Start up the backlight with the requested intensity
++	 */
++	ud->bldev->props.power = FB_BLANK_UNBLANK;
++	ud->bldev->props.max_brightness =
++		(pdata->type == UBICOM32HID_BL_TYPE_PWM) ?
++		UBICOM32HID_MAX_BRIGHTNESS_PWM : 1;
++	if (pdata->default_intensity < ud->bldev->props.max_brightness) {
++		ud->bldev->props.brightness = pdata->default_intensity;
++	} else {
++		dev_warn(&client->dev, "Default brightness out of range, "
++			 "setting to max\n");
++		ud->bldev->props.brightness = ud->bldev->props.max_brightness;
++	}
++
++	ubicom32hid_set_intensity(ud->bldev);
++
++	/*
++	 * Check to see if we have any inputs
++	 */
++	if (!pdata->nbuttons && !pdata->nircodes) {
++		goto done;
++	}
++
++	/*
++	 * We have buttons or codes, we must register an input device
++	 */
++	ud->poll_dev = input_allocate_polled_device();
++	if (!ud->poll_dev) {
++		ret = -ENOMEM;
++		goto fail3;
++	}
++
++	/*
++	 * Setup the polling to default to 100ms
++	 */
++	ud->poll_dev->poll = ubicom32hid_poll_input;
++	ud->poll_dev->poll_interval =
++		pdata->poll_interval ? pdata->poll_interval : 100;
++	ud->poll_dev->private = ud;
++
++	ud->poll_dev->input->name =
++		pdata->input_name ? pdata->input_name : "Ubicom32HID";
++	ud->poll_dev->input->phys = "ubicom32hid/input0";
++	ud->poll_dev->input->dev.parent = &client->dev;
++	ud->poll_dev->input->id.bustype = BUS_I2C;
++
++	/*
++	 * Set the capabilities by running through the buttons and ir codes
++	 */
++	for (i = 0; i < pdata->nbuttons; i++) {
++		const struct ubicom32hid_button *ub = &pdata->buttons[i];
++
++		input_set_capability(ud->poll_dev->input,
++				     ub->type ? ub->type : EV_KEY, ub->code);
++	}
++
++	for (i = 0; i < pdata->nircodes; i++) {
++		const struct ubicom32hid_ir *ui = &pdata->ircodes[i];
++
++		input_set_capability(ud->poll_dev->input,
++				     ui->type ? ui->type : EV_KEY, ui->code);
++	}
++
++	ret = input_register_polled_device(ud->poll_dev);
++	if (ret) {
++		goto fail3;
++	}
++
++done:
++	printk(KERN_INFO DRIVER_NAME ": enabled, version=%02x.%02x\n",
++	       version[0], version[1]);
++
++	return 0;
++
++fail3:
++	gpio_free(ud->pdata->gpio_reset);
++	backlight_device_unregister(ud->bldev);
++fail2:
++	kfree(ud);
++fail:
++	gpio_free(pdata->gpio_reset);
++	return ret;
++}
++
++/*
++ * ubicom32hid_remove
++ */
++static int ubicom32hid_remove(struct i2c_client *client)
++{
++	struct ubicom32hid_data *ud =
++		(struct ubicom32hid_data *)platform_get_drvdata(client);
++
++	gpio_free(ud->pdata->gpio_reset);
++
++	backlight_device_unregister(ud->bldev);
++
++	if (ud->poll_dev) {
++		input_unregister_polled_device(ud->poll_dev);
++		input_free_polled_device(ud->poll_dev);
++	}
++
++	platform_set_drvdata(client, NULL);
++
++	kfree(ud);
++
++	return 0;
++}
++
++static struct i2c_driver ubicom32hid_driver = {
++	.driver = {
++		.name	= DRIVER_NAME,
++		.owner	= THIS_MODULE,
++	},
++	.probe		= ubicom32hid_probe,
++	.remove		= __exit_p(ubicom32hid_remove),
++	.id_table	= ubicom32hid_id,
++};
++
++/*
++ * ubicom32hid_init
++ */
++static int __init ubicom32hid_init(void)
++{
++	return i2c_add_driver(&ubicom32hid_driver);
++}
++module_init(ubicom32hid_init);
++
++/*
++ * ubicom32hid_exit
++ */
++static void __exit ubicom32hid_exit(void)
++{
++	i2c_del_driver(&ubicom32hid_driver);
++}
++module_exit(ubicom32hid_exit);
++
++MODULE_AUTHOR("Pat Tjin <@ubicom.com>")
++MODULE_DESCRIPTION("Ubicom HID driver");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ubicom32input.c
+@@ -0,0 +1,265 @@
++/*
++ * arch/ubicom32/mach-common/ubicom32input.c
++ *   Ubicom32 Input driver
++ *
++ *   based on gpio-keys
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ *
++ *
++ * TODO: add groups for inputs which can be sampled together (i.e. I2C)
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/input.h>
++#include <linux/input-polldev.h>
++#include <linux/delay.h>
++#include <linux/gpio.h>
++
++#include <asm/ubicom32input.h>
++
++struct ubicom32input_data {
++	struct ubicom32input_platform_data	*pdata;
++
++	struct input_polled_dev			*poll_dev;
++
++	/*
++	 * collection of previous states for buttons
++	 */
++	u8					prev_state[0];
++};
++
++/*
++ * ubicom32input_poll
++ */
++static void ubicom32input_poll(struct input_polled_dev *dev)
++{
++	struct ubicom32input_data *ud =
++		(struct ubicom32input_data *)dev->private;
++	struct ubicom32input_platform_data *pdata = ud->pdata;
++	struct input_dev *id = dev->input;
++	int i;
++	int sync_needed = 0;
++
++	for (i = 0; i < pdata->nbuttons; i++) {
++		const struct ubicom32input_button *ub = &pdata->buttons[i];
++		int state = 0;
++
++		int val = gpio_get_value(ub->gpio);
++
++		/*
++		 * Check to see if the state changed from the last time we
++		 * looked
++		 */
++		if (val == ud->prev_state[i]) {
++			continue;
++		}
++
++		/*
++		 * The state has changed, determine if we are "up" or "down"
++		 */
++		ud->prev_state[i] = val;
++
++		if ((!val && ub->active_low) || (val && !ub->active_low)) {
++			state = 1;
++		}
++
++		input_event(id, ub->type, ub->code, state);
++		sync_needed = 1;
++	}
++
++	if (sync_needed) {
++		input_sync(id);
++	}
++}
++
++/*
++ * ubicom32input_probe
++ */
++static int __devinit ubicom32input_probe(struct platform_device *pdev)
++{
++	int i;
++	struct ubicom32input_data *ud;
++	struct input_polled_dev *poll_dev;
++	struct input_dev *input_dev;
++	struct ubicom32input_platform_data *pdata;
++	int ret;
++
++	pdata = pdev->dev.platform_data;
++	if (!pdata) {
++		return -EINVAL;
++	}
++
++	ud = kzalloc(sizeof(struct ubicom32input_data) +
++		     pdata->nbuttons, GFP_KERNEL);
++	if (!ud) {
++		return -ENOMEM;
++	}
++	ud->pdata = pdata;
++
++	poll_dev = input_allocate_polled_device();
++	if (!poll_dev) {
++		ret = -ENOMEM;
++		goto fail;
++	}
++
++	platform_set_drvdata(pdev, ud);
++
++	ud->poll_dev = poll_dev;
++	poll_dev->private = ud;
++	poll_dev->poll = ubicom32input_poll;
++
++	/*
++	 * Set the poll interval requested, default to 50 msec
++	 */
++	if (pdata->poll_interval) {
++		poll_dev->poll_interval = pdata->poll_interval;
++	} else {
++		poll_dev->poll_interval = 50;
++	}
++
++	/*
++	 * Setup the input device
++	 */
++	input_dev = poll_dev->input;
++	input_dev->name = pdata->name ? pdata->name : "Ubicom32 Input";
++	input_dev->phys = "ubicom32input/input0";
++	input_dev->dev.parent = &pdev->dev;
++	input_dev->id.bustype = BUS_HOST;
++
++	/*
++	 * Reserve the GPIOs
++	 */
++	for (i = 0; i < pdata->nbuttons; i++) {
++		const struct ubicom32input_button *ub = &pdata->buttons[i];
++
++		ret = gpio_request(ub->gpio,
++				   ub->desc ? ub->desc : "ubicom32input");
++		if (ret < 0) {
++			pr_err("ubicom32input: failed to request "
++			       "GPIO %d ret=%d\n", ub->gpio, ret);
++			goto fail2;
++		}
++
++		ret = gpio_direction_input(ub->gpio);
++		if (ret < 0) {
++			pr_err("ubicom32input: failed to set "
++			       "GPIO %d to input ret=%d\n", ub->gpio, ret);
++			goto fail2;
++		}
++
++		/*
++		 * Set the previous state to the non-active stae
++		 */
++		ud->prev_state[i] = ub->active_low;
++
++		input_set_capability(input_dev,
++				     ub->type ? ub->type : EV_KEY, ub->code);
++	}
++
++	/*
++	 * Register
++	 */
++	ret = input_register_polled_device(ud->poll_dev);
++	if (ret) {
++		goto fail2;
++	}
++
++	return 0;
++
++fail2:
++	/*
++	 * release the GPIOs we have already requested.
++	 */
++	while (--i >= 0) {
++		gpio_free(pdata->buttons[i].gpio);
++	}
++
++fail:
++	printk(KERN_ERR "Ubicom32Input: Failed to register driver %d", ret);
++	platform_set_drvdata(pdev, NULL);
++	input_free_polled_device(poll_dev);
++	kfree(ud);
++	return ret;
++}
++
++/*
++ * ubicom32input_remove
++ */
++static int __devexit ubicom32input_remove(struct platform_device *dev)
++{
++	struct ubicom32input_data *ud =
++		(struct ubicom32input_data *)platform_get_drvdata(dev);
++	int i;
++
++	/*
++	 * Free the GPIOs
++	 */
++	for (i = 0; i < ud->pdata->nbuttons; i++) {
++		gpio_free(ud->pdata->buttons[i].gpio);
++	}
++
++	platform_set_drvdata(dev, NULL);
++	input_unregister_polled_device(ud->poll_dev);
++	input_free_polled_device(ud->poll_dev);
++
++	kfree(ud);
++
++	return 0;
++}
++
++static struct platform_driver ubicom32input_driver = {
++	.driver         = {
++		.name   = "ubicom32input",
++		.owner  = THIS_MODULE,
++	},
++	.probe          = ubicom32input_probe,
++	.remove         = __devexit_p(ubicom32input_remove),
++};
++
++/*
++ * ubicom32input_init
++ */
++static int __devinit ubicom32input_init(void)
++{
++	return platform_driver_register(&ubicom32input_driver);
++}
++
++/*
++ * ubicom32input_exit
++ */
++static void __exit ubicom32input_exit(void)
++{
++	platform_driver_unregister(&ubicom32input_driver);
++}
++
++module_init(ubicom32input_init);
++module_exit(ubicom32input_exit);
++
++MODULE_AUTHOR("Pat Tjin <pattjin@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 Input Driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:ubicom32-input");
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ubicom32input_i2c.c
+@@ -0,0 +1,325 @@
++/*
++ * arch/ubicom32/mach-common/ubicom32input_i2c.c
++ *   Ubicom32 Input driver for I2C
++ *	  Supports PCA953x and family
++ *
++ *   We hog the I2C device, turning it all to input.
++ *
++ *   Based on gpio-keys, pca953x
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/input.h>
++#include <linux/input-polldev.h>
++#include <linux/i2c.h>
++
++#include <asm/ubicom32input_i2c.h>
++
++#define UBICOM32INPUT_I2C_REG_INPUT	0
++#define UBICOM32INPUT_I2C_REG_OUTPUT	1
++#define UBICOM32INPUT_I2C_REG_INVERT	2
++#define UBICOM32INPUT_I2C_REG_DIRECTION	3
++
++static const struct i2c_device_id ubicom32input_i2c_id[] = {
++	{ "ubicom32in_pca9534", 8, },
++	{ "ubicom32in_pca9535", 16, },
++	{ "ubicom32in_pca9536", 4, },
++	{ "ubicom32in_pca9537", 4, },
++	{ "ubicom32in_pca9538", 8, },
++	{ "ubicom32in_pca9539", 16, },
++	{ "ubicom32in_pca9554", 8, },
++	{ "ubicom32in_pca9555", 16, },
++	{ "ubicom32in_pca9557", 8, },
++	{ "ubicom32in_max7310", 8, },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, ubicom32input_i2c_id);
++
++struct ubicom32input_i2c_data {
++	struct ubicom32input_i2c_platform_data	*pdata;
++
++	struct i2c_client			*client;
++
++	struct input_polled_dev			*poll_dev;
++
++	/*
++	 * collection of previous states for buttons
++	 */
++	uint16_t				prev_state;
++
++	uint8_t					ngpios;
++};
++
++/*
++ * ubicom32input_i2c_write_reg
++ *	writes a register to the I2C device.
++ */
++static int ubicom32input_i2c_write_reg(struct ubicom32input_i2c_data *ud,
++				       int reg, uint16_t val)
++{
++	int ret;
++
++	if (ud->ngpios <= 8) {
++		ret = i2c_smbus_write_byte_data(ud->client, reg, val);
++	} else {
++		ret = i2c_smbus_write_word_data(ud->client, reg << 1, val);
++	}
++
++	if (ret < 0) {
++		return ret;
++	}
++
++	return 0;
++}
++
++/*
++ * ubicom32input_i2c_read_reg
++ *	reads a register from the I2C device.
++ */
++static int ubicom32input_i2c_read_reg(struct ubicom32input_i2c_data *ud,
++				      int reg, uint16_t *val)
++{
++	int ret;
++
++	if (ud->ngpios <= 8) {
++		ret = i2c_smbus_read_byte_data(ud->client, reg);
++	} else {
++		ret = i2c_smbus_read_word_data(ud->client, reg);
++	}
++
++	if (ret < 0) {
++		return ret;
++	}
++
++	*val = (uint16_t)ret;
++
++	return 0;
++}
++
++/*
++ * ubicom32input_i2c_poll
++ */
++static void ubicom32input_i2c_poll(struct input_polled_dev *dev)
++{
++	struct ubicom32input_i2c_data *ud =
++		(struct ubicom32input_i2c_data *)dev->private;
++	struct ubicom32input_i2c_platform_data *pdata = ud->pdata;
++	struct input_dev *id = dev->input;
++	int i;
++	int sync_needed = 0;
++	uint16_t val;
++	uint16_t change_mask;
++
++	/*
++	 * Try to get the input status, if we fail, bail out, maybe we can do it
++	 * next time.
++	 */
++	if (ubicom32input_i2c_read_reg(ud, UBICOM32INPUT_I2C_REG_INPUT, &val)) {
++		return;
++	}
++
++	/*
++	 * see if anything changed by using XOR
++	 */
++	change_mask = ud->prev_state ^ val;
++	ud->prev_state = val;
++
++	for (i = 0; i < pdata->nbuttons; i++) {
++		const struct ubicom32input_i2c_button *ub = &pdata->buttons[i];
++		uint16_t mask = 1 << ub->bit;
++		int state = val & mask;
++
++		/*
++		 * Check to see if the state changed from the last time we
++		 * looked
++		 */
++		if (!(change_mask & mask)) {
++			continue;
++		}
++		input_event(id, ub->type, ub->code, state);
++		sync_needed = 1;
++	}
++
++	if (sync_needed) {
++		input_sync(id);
++	}
++}
++
++/*
++ * ubicom32input_i2c_probe
++ */
++static int __devinit ubicom32input_i2c_probe(struct i2c_client *client,
++					     const struct i2c_device_id *id)
++{
++	int i;
++	struct ubicom32input_i2c_data *ud;
++	struct input_polled_dev *poll_dev;
++	struct input_dev *input_dev;
++	struct ubicom32input_i2c_platform_data *pdata;
++	int ret;
++	uint16_t invert_mask = 0;
++
++	pdata = client->dev.platform_data;
++	if (!pdata) {
++		return -EINVAL;
++	}
++
++	ud = kzalloc(sizeof(struct ubicom32input_i2c_data), GFP_KERNEL);
++	if (!ud) {
++		return -ENOMEM;
++	}
++	ud->pdata = pdata;
++	ud->client = client;
++	ud->ngpios = id->driver_data;
++
++	poll_dev = input_allocate_polled_device();
++	if (!poll_dev) {
++		ret = -ENOMEM;
++		goto fail;
++	}
++
++	ud->poll_dev = poll_dev;
++	poll_dev->private = ud;
++	poll_dev->poll = ubicom32input_i2c_poll;
++
++	/*
++	 * Set the poll interval requested, default to 100 msec
++	 */
++	if (pdata->poll_interval) {
++		poll_dev->poll_interval = pdata->poll_interval;
++	} else {
++		poll_dev->poll_interval = 100;
++	}
++
++	/*
++	 * Setup the input device
++	 */
++	input_dev = poll_dev->input;
++	input_dev->name = pdata->name ? pdata->name : "Ubicom32 Input I2C";
++	input_dev->phys = "ubicom32input_i2c/input0";
++	input_dev->dev.parent = &client->dev;
++	input_dev->id.bustype = BUS_I2C;
++
++	/*
++	 * Set the capabilities
++	 */
++	for (i = 0; i < pdata->nbuttons; i++) {
++		const struct ubicom32input_i2c_button *ub = &pdata->buttons[i];
++
++		if (ub->active_low) {
++			invert_mask |= (1 << ub->bit);
++		}
++
++		input_set_capability(input_dev,
++				     ub->type ? ub->type : EV_KEY, ub->code);
++	}
++
++	/*
++	 * Setup the device (all inputs)
++	 */
++	ret = ubicom32input_i2c_write_reg(ud, UBICOM32INPUT_I2C_REG_DIRECTION,
++					  0xFFFF);
++	if (ret < 0) {
++		goto fail;
++	}
++
++	ret = ubicom32input_i2c_write_reg(ud, UBICOM32INPUT_I2C_REG_INVERT,
++					  invert_mask);
++	if (ret < 0) {
++		goto fail;
++	}
++
++	/*
++	 * Register
++	 */
++	ret = input_register_polled_device(ud->poll_dev);
++	if (ret) {
++		goto fail;
++	}
++
++	i2c_set_clientdata(client, ud);
++
++	return 0;
++
++fail:
++	printk(KERN_ERR "ubicom32input_i2c: Failed to register driver %d\n",
++	       ret);
++	input_free_polled_device(poll_dev);
++	kfree(ud);
++	return ret;
++}
++
++/*
++ * ubicom32input_i2c_remove
++ */
++static int __devexit ubicom32input_i2c_remove(struct i2c_client *client)
++{
++	struct ubicom32input_i2c_data *ud =
++		(struct ubicom32input_i2c_data *)i2c_get_clientdata(client);
++
++	i2c_set_clientdata(client, NULL);
++	input_unregister_polled_device(ud->poll_dev);
++	input_free_polled_device(ud->poll_dev);
++
++	kfree(ud);
++
++	return 0;
++}
++
++static struct i2c_driver ubicom32input_i2c_driver = {
++	.driver         = {
++		.name   = "ubicom32input_i2c",
++		.owner  = THIS_MODULE,
++	},
++	.remove         = __devexit_p(ubicom32input_i2c_remove),
++	.id_table	= ubicom32input_i2c_id,
++	.probe          = ubicom32input_i2c_probe,
++};
++
++/*
++ * ubicom32input_i2c_init
++ */
++static int __devinit ubicom32input_i2c_init(void)
++{
++	return i2c_add_driver(&ubicom32input_i2c_driver);
++}
++
++/*
++ * ubicom32input_i2c_exit
++ */
++static void __exit ubicom32input_i2c_exit(void)
++{
++	i2c_del_driver(&ubicom32input_i2c_driver);
++}
++
++module_init(ubicom32input_i2c_init);
++module_exit(ubicom32input_i2c_exit);
++
++MODULE_AUTHOR("Pat Tjin <pattjin@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 Input Driver I2C");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:ubicom32-input");
+--- /dev/null
++++ b/arch/ubicom32/mach-common/usb.c
+@@ -0,0 +1,133 @@
++/*
++ * arch/ubicom32/mach-common/ip5k_usb.c
++ *   Ubicom32 architecture usb support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
++ * Author: Kevin Hilman
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can
++ * redistribute it and/or modify it under the terms of the GNU General
++ * Public License as published by the Free Software Foundation, either
++ * version 2 of the License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
++ * See the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/errno.h>
++#include <linux/delay.h>
++#include <linux/platform_device.h>
++#include <linux/dma-mapping.h>
++#include <linux/usb/musb.h>
++#include <asm/devtree.h>
++#include <asm/ip5000.h>
++#include "usb_tio.h"
++
++struct usbtionode *unode = NULL;
++
++static struct resource usb_resources[] = {
++	[0] = {
++		.start	= RJ + 0x800,
++		.end	= RJ + 0x1000,
++		.flags	= IORESOURCE_MEM,
++	},
++	[1] = {	/* general IRQ */
++		.start	= 1, /* this is a dummy value, the real irq number is passed from kernel_setup_param */
++		.flags	= IORESOURCE_IRQ,
++	},
++};
++
++
++static struct musb_hdrc_eps_bits musb_eps[] = {
++	{ "ep1_tx", 4, },
++	{ "ep1_rx", 4, },
++	{ "ep2_tx", 10, },
++	{ "ep2_rx", 10, },
++	{ "ep3_tx", 9, },
++	{ "ep3_rx", 9, },
++	{ "ep4_tx", 9, },
++	{ "ep4_rx", 9, },
++	{ "ep5_tx", 6, },
++	{ "ep5_rx", 6, },
++};
++
++static struct musb_hdrc_config musb_config = {
++	.multipoint     = true,
++	.dyn_fifo       = false,
++	.soft_con       = true,
++	.dma            = false,
++
++	.num_eps        = 6,
++	.dma_channels   = 0,
++	.ram_bits       = 0,
++	.eps_bits       = musb_eps,
++};
++
++static struct musb_hdrc_platform_data usb_data = {
++#ifdef CONFIG_USB_MUSB_OTG
++	.mode		= MUSB_OTG,
++#else
++#ifdef CONFIG_USB_MUSB_HDRC_HCD
++	.mode		= MUSB_HOST,
++#else
++#ifdef CONFIG_USB_GADGET_MUSB_HDRC
++	.mode		= MUSB_PERIPHERAL,
++#endif
++#endif
++#endif
++	.clock		= NULL,
++	.set_clock	= NULL,
++	.config		= &musb_config,
++};
++
++static struct platform_device musb_device = {
++	.name		= "musb_hdrc",
++	.id		= 0,
++	.dev = {
++		.platform_data		= &usb_data,
++		.dma_mask		= NULL,
++		.coherent_dma_mask	= 0,
++	},
++	.resource	= usb_resources,
++	.num_resources	= ARRAY_SIZE(usb_resources),
++};
++
++struct usbtio_node *usb_node = NULL;
++void ubi32_usb_init(void)
++{
++	/*
++	 * See if the usbtio is in the device tree.
++	 */
++	usb_node = (struct usbtio_node *)devtree_find_node("usbtio");
++	if (!usb_node) {
++		printk(KERN_WARNING "usb init failed\n");
++		return;
++	}
++
++	usb_resources[1].start = usb_node->dn.recvirq;
++	if (platform_device_register(&musb_device) < 0) {
++		printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
++		return;
++	}
++}
++
++void ubi32_usb_int_clr(void)
++{
++        UBICOM32_IO_PORT(RJ)->int_clr = (1 << 3);
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mach-common/usb_tio.c
+@@ -0,0 +1,356 @@
++/*
++ * arch/ubicom32/mach-common/usb_tio.c
++ *  Linux side Ubicom USB TIO driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/spinlock.h>
++#include <linux/slab.h>
++#include <asm/devtree.h>
++#include "usb_tio.h"
++
++#ifdef CONFIG_SMP
++static DEFINE_SPINLOCK(tio_lock);
++#define USB_TIO_LOCK(lock, flag) spin_lock_irqsave(lock, flag)
++#define USB_TIO_UNLOCK(lock, flag) spin_unlock_irqrestore(lock, flag)
++#define USB_TIO_LOCK_ISLOCKED(lock) spin_try_lock(lock)
++#else
++#define USB_TIO_LOCK(lock, flag) local_irq_save(flag)
++#define USB_TIO_UNLOCK(lock, flag) local_irq_restore(flag)
++#endif
++
++spinlock_t usb_tio_lock;
++
++/*
++ * usb_tio_set_hrt_interrupt()
++ */
++static inline void usb_tio_set_hrt_interrupt(void)
++{
++	ubicom32_set_interrupt(usb_node->dn.sendirq);
++}
++
++static inline void usb_tio_wait_hrt(void)
++{
++	while (unlikely(usb_node->pdesc));
++}
++
++#if defined(USB_TIO_DEBUG)
++static void usb_tio_request_verify_magic(volatile struct usb_tio_request *req)
++{
++	BUG_ON(req->magic != USB_TIO_REQUEST_MAGIC2);
++}
++
++static void usb_tio_request_clear_magic(volatile struct usb_tio_request *req)
++{
++	req->magic = 0;
++}
++#endif
++
++static void usb_tio_request_set_magic(volatile struct usb_tio_request *req)
++{
++	req->magic = USB_TIO_REQUEST_MAGIC1;
++}
++
++/*
++ * usb_tio_commit_request()
++ */
++static inline void usb_tio_commit_request(volatile struct usb_tio_request *request)
++{
++	wmb();
++	usb_node->pdesc = request;
++
++	/*
++	 * next thing to do is alway checking if (usb_node->pdesc == NULL) 
++	 * to see if the request is done, so add a mb() here
++	 */
++	mb();
++	usb_tio_set_hrt_interrupt();
++}
++
++/*
++ * usb_tio_read_u16()
++ *	Synchronously read 16 bits.
++ */
++u8_t usb_tio_read_u16(u32_t address, u16_t *data)
++{
++	volatile struct usb_tio_request *tio_req = &usb_node->request;
++	unsigned long flag;
++
++	/*
++	 * Wait for any previous request to complete and then make this request.
++	 */
++	USB_TIO_LOCK(&tio_lock, flag);
++	usb_tio_wait_hrt();
++
++	/*
++	 * Fill in the request.
++	 */
++	tio_req->address = address;
++	tio_req->cmd = USB_TIO_READ16_SYNC;
++	USB_TIO_REQUEST_SET_MAGIC(tio_req);
++	usb_tio_commit_request(tio_req);
++
++	/*
++	 * Wait for the result to show up.
++	 */
++	usb_tio_wait_hrt();
++	USB_TIO_REQUEST_VERIFY_MAGIC(tio_req);
++	*data = (u16_t)tio_req->data;
++	USB_TIO_REQUEST_CLEAR_MAGIC(tio_req);
++	USB_TIO_UNLOCK(&tio_lock, flag);
++	return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_read_u8()
++ *	Synchronously read 16 bits.
++ */
++u8_t usb_tio_read_u8(u32_t address, u8_t *data)
++{
++	volatile struct usb_tio_request *tio_req = &usb_node->request;
++	unsigned long flag;
++
++	/*
++	 * Wait for any previous request to complete and then make this request.
++	 */
++	USB_TIO_LOCK(&tio_lock, flag);
++	usb_tio_wait_hrt();
++
++	/*
++	 * Fill in the request.
++	 */
++	tio_req->address = address;
++	tio_req->cmd = USB_TIO_READ8_SYNC;
++	USB_TIO_REQUEST_SET_MAGIC(tio_req);
++
++	/*
++	 * commit the request
++	 */
++	usb_tio_commit_request(tio_req);
++
++	/*
++	 * Wait for the result to show up.
++	 */
++	usb_tio_wait_hrt();
++	USB_TIO_REQUEST_VERIFY_MAGIC(tio_req);
++	*data = (u8_t)tio_req->data;
++	USB_TIO_REQUEST_CLEAR_MAGIC(tio_req);
++	USB_TIO_UNLOCK(&tio_lock, flag);
++	return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_write_u16()
++ *	Asynchronously  write 16 bits.
++ */
++u8_t usb_tio_write_u16(u32_t address, u16_t data)
++{
++	volatile struct usb_tio_request *tio_req = &usb_node->request;
++	unsigned long flag;
++
++	/*
++	 * Wait for any previous write or pending read to complete.
++	 */
++	USB_TIO_LOCK(&tio_lock, flag);
++	usb_tio_wait_hrt();
++
++	tio_req->address = address;
++	tio_req->data = data;
++	tio_req->cmd = USB_TIO_WRITE16_ASYNC;
++	USB_TIO_REQUEST_SET_MAGIC(tio_req);
++
++	/*
++	 * commit the request
++	 */
++	usb_tio_commit_request(tio_req);
++	USB_TIO_UNLOCK(&tio_lock, flag);
++	return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_write_u8()
++ *	Asynchronously  write 8 bits.
++ */
++u8_t usb_tio_write_u8(u32_t address, u8_t data)
++{
++	volatile struct usb_tio_request *tio_req = &usb_node->request;
++	unsigned long flag;
++
++	/*
++	 * Wait for any previous write or pending read to complete.
++	 */
++	USB_TIO_LOCK(&tio_lock, flag);
++	usb_tio_wait_hrt();
++
++	tio_req->address = address;
++	tio_req->data = data;
++	tio_req->cmd = USB_TIO_WRITE8_ASYNC;
++	USB_TIO_REQUEST_SET_MAGIC(tio_req);
++
++	/*
++	 * commit the request
++	 */
++	usb_tio_commit_request(tio_req);
++	USB_TIO_UNLOCK(&tio_lock, flag);
++	return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_read_fifo()
++ *	Synchronously read FIFO.
++ */
++u8_t usb_tio_read_fifo(u32_t address, u32_t buffer, u32_t bytes)
++{
++	volatile struct usb_tio_request *tio_req = &usb_node->request;
++	unsigned long flag;
++
++	/*
++	 * Wait for any previous request to complete and then make this request.
++	 */
++	USB_TIO_LOCK(&tio_lock, flag);
++	usb_tio_wait_hrt();
++
++	/*
++	 * Fill in the request.
++	 */
++	tio_req->address = address;
++	tio_req->cmd = USB_TIO_READ_FIFO_SYNC;
++	tio_req->buffer = buffer;
++	tio_req->transfer_length = bytes;
++	USB_TIO_REQUEST_SET_MAGIC(tio_req);
++
++	/*
++	 * commit the request
++	 */
++	usb_tio_commit_request(tio_req);
++
++	 /*
++	 * Wait for the result to show up.
++	 */
++	usb_tio_wait_hrt();
++	USB_TIO_REQUEST_VERIFY_MAGIC(tio_req);
++	USB_TIO_REQUEST_CLEAR_MAGIC(tio_req);
++	USB_TIO_UNLOCK(&tio_lock, flag);
++	return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_write_fifo()
++ *	Synchronously  write 32 bits.
++ */
++u8_t usb_tio_write_fifo(u32_t address, u32_t buffer, u32_t bytes)
++{
++	volatile struct	usb_tio_request *tio_req = &usb_node->request;
++	unsigned long flag;
++
++	USB_TIO_LOCK(&tio_lock, flag);
++	usb_tio_wait_hrt();
++
++	tio_req->address = address;
++	tio_req->buffer = buffer;
++	tio_req->cmd = USB_TIO_WRITE_FIFO_SYNC;
++	tio_req->transfer_length = bytes;
++	USB_TIO_REQUEST_SET_MAGIC(tio_req);
++	/*
++	 * commit the request
++	 */
++	usb_tio_commit_request(tio_req);
++	
++	/*
++	 * Wait for the result to show up.
++	 */
++	usb_tio_wait_hrt();
++	USB_TIO_REQUEST_VERIFY_MAGIC(tio_req);
++	USB_TIO_REQUEST_CLEAR_MAGIC(tio_req);
++	USB_TIO_UNLOCK(&tio_lock, flag);
++	return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_write_fifo_async()
++ *	Asynchronously write 32 bits.
++ */
++u8_t usb_tio_write_fifo_async(u32_t address, u32_t buffer, u32_t bytes)
++{
++	volatile struct	usb_tio_request *tio_req = &usb_node->request;
++	unsigned long flag;
++
++	USB_TIO_LOCK(&tio_lock, flag);
++	usb_tio_wait_hrt();
++
++	tio_req->address = address;
++	
++	/*
++	 * Is it necessary to make a local copy of the buffer? Any chance the URB is aborted before TIO finished the FIFO write?
++	 */
++	tio_req->buffer = buffer;
++	tio_req->cmd = USB_TIO_WRITE_FIFO_SYNC;
++	tio_req->transfer_length = bytes;
++	USB_TIO_REQUEST_SET_MAGIC(tio_req);
++	/*
++	 * commit the request
++	 */
++	usb_tio_commit_request(tio_req);
++	USB_TIO_UNLOCK(&tio_lock, flag);
++	return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_read_int_status()
++ * 	read and clear the interrupt status registers
++ */
++void usb_tio_read_int_status(u8_t *int_usb, u16_t *int_tx, u16_t *int_rx)
++{
++
++	/*
++	 * clear the interrupt must be syncronized with the TIO thread to prevent the racing condiiton 
++	 * that TIO thread try to set it at same time
++	 */
++	asm volatile (
++	"1:	bset (%0), (%0), #0	\n\t" \
++	"	jmpne.f 1b		\n\t" \
++		:
++		: "a" (&usb_node->usb_vp_control)
++		: "memory", "cc"
++	);
++
++	*int_usb = usb_node->usb_vp_hw_int_usb;
++	*int_tx  = cpu_to_le16(usb_node->usb_vp_hw_int_tx);
++	*int_rx  = cpu_to_le16(usb_node->usb_vp_hw_int_rx);
++
++	//printk(KERN_INFO "int read %x, %x, %x\n", *int_usb, *int_tx, *int_rx);
++	
++	/* 
++	 * The interrupt status register is read-clean, so clear it now
++	 */
++	usb_node->usb_vp_hw_int_usb = 0;
++	usb_node->usb_vp_hw_int_tx = 0;
++	usb_node->usb_vp_hw_int_rx = 0;
++
++	/*
++	 * release the lock bit
++	 */
++	usb_node->usb_vp_control &= 0xfffe;
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/usb_tio.h
+@@ -0,0 +1,111 @@
++/*
++ * arch/ubicom32/mach-common/usb_tio.h
++ *   Definitions for usb_tio.c
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/version.h>
++#include <linux/kernel.h>
++#include <linux/types.h>
++#include <linux/errno.h>
++#include <linux/err.h>
++#include <asm/devtree.h>
++#include <asm/ip5000.h>
++
++#ifndef _USB_TIO_H
++#define _USB_TIO_H
++
++#undef  USB_TIO_DEBUG
++
++#define USB_TIO_REQUEST_MAGIC1	0x2307
++#define USB_TIO_REQUEST_MAGIC2	0x0789
++#if defined(USB_TIO_DEBUG)
++#define USB_TIO_REQUEST_VERIFY_MAGIC(req)	usb_tio_request_verify_magic(req)
++#define USB_TIO_REQUEST_SET_MAGIC(req)          usb_tio_request_set_magic(req)
++#define USB_TIO_REQUEST_CLEAR_MAGIC(req)	usb_tio_request_clear_magic(req)
++#else
++#define USB_TIO_REQUEST_VERIFY_MAGIC(req)
++#define USB_TIO_REQUEST_SET_MAGIC(req)          usb_tio_request_set_magic(req)
++#define USB_TIO_REQUEST_CLEAR_MAGIC(req)
++#endif
++
++enum USB_TIO_status {
++	USB_TIO_OK,
++	USB_TIO_ERROR,
++	USB_TIO_ERROR_COMMIT,
++};
++
++enum USB_TIO_cmds {
++	USB_TIO_READ16_SYNC,
++	USB_TIO_READ8_SYNC,
++	USB_TIO_READ_FIFO_SYNC,
++
++	USB_TIO_WRITE16_ASYNC,
++	USB_TIO_WRITE8_ASYNC,
++	USB_TIO_WRITE_FIFO_ASYNC,
++
++	USB_TIO_WRITE16_SYNC,
++	USB_TIO_WRITE8_SYNC,
++	USB_TIO_WRITE_FIFO_SYNC,
++
++};
++
++enum USB_TIO_state {
++	USB_TIO_NORMAL,
++	USB_TIO_DMA_SETUP,
++};
++
++struct usb_tio_request {
++	volatile u32_t address;
++	union {
++		volatile u32_t data;
++		volatile u32_t buffer;
++	};
++	volatile u16_t cmd;
++	const volatile u16_t status;
++	volatile u32_t transfer_length;
++	volatile u32_t thread_mask;
++	volatile u16_t magic;
++};
++
++struct usbtio_node {
++	struct devtree_node dn;
++	volatile struct usb_tio_request * volatile pdesc;
++	struct usb_tio_request	request;
++	volatile u32_t usb_vp_config;
++	volatile u32_t usb_vp_control;
++	const volatile u32_t usb_vp_status;
++	volatile u16_t usb_vp_hw_int_tx;
++	volatile u16_t usb_vp_hw_int_rx;
++	volatile u8_t  usb_vp_hw_int_usb;
++	volatile u8_t usb_vp_hw_int_mask_usb;
++        volatile u16_t usb_vp_hw_int_mask_tx;
++        volatile u16_t usb_vp_hw_int_mask_rx;
++
++};
++
++extern struct usbtio_node *usb_node;
++extern void ubi32_usb_init(void);
++#endif
+--- /dev/null
++++ b/arch/ubicom32/mach-common/vdc_tio.c
+@@ -0,0 +1,111 @@
++/*
++ * arch/ubicom32/mach-common/vdc_tio.c
++ *   Generic initialization for VDC
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/platform_device.h>
++#include <linux/types.h>
++
++#include <asm/devtree.h>
++#include <asm/vdc_tio.h>
++
++/*
++ * Resources that this driver uses
++ */
++static struct resource vdc_tio_resources[] = {
++	/*
++	 * Send IRQ
++	 */
++	[0] = {
++		/*
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Receive IRQ (optional)
++	 */
++	[1] = {
++		/*
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Memory Mapped Registers
++	 */
++	[2] = {
++		/*
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_MEM,
++	},
++};
++
++/*
++ * The platform_device structure which is passed to the driver
++ */
++static struct platform_device vdc_tio_platform_device = {
++	.name		= "ubicom32fb",
++	.id		= -1,
++	.resource	= vdc_tio_resources,
++	.num_resources	= ARRAY_SIZE(vdc_tio_resources),
++};
++
++/*
++ * vdc_tio_init
++ *	Checks the device tree and instantiates the driver if found
++ */
++void __init vdc_tio_init(void)
++{
++	/*
++	 * Check the device tree for the vdc_tio
++	 */
++	struct vdc_tio_node *vdc_node =
++		(struct vdc_tio_node *)devtree_find_node("vdctio");
++	if (!vdc_node) {
++		printk(KERN_WARNING "No vdc_tio found\n");
++		return;
++	}
++
++	/*
++	 * Fill in the resources and platform data from devtree information
++	 */
++	vdc_tio_resources[0].start = vdc_node->dn.sendirq;
++	vdc_tio_resources[1].start = vdc_node->dn.recvirq;
++	vdc_tio_resources[2].start = (u32_t)vdc_node->regs;
++	vdc_tio_resources[2].end = (u32_t)vdc_node->regs +
++		sizeof(struct vdc_tio_vp_regs);
++
++	/*
++	 * Try to get the device registered
++	 */
++	if (platform_device_register(&vdc_tio_platform_device) < 0) {
++		printk(KERN_WARNING "VDC failed to register\n");
++	}
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/board-ip5160dev.c
+@@ -0,0 +1,110 @@
++/*
++ * arch/ubicom32/mach-ip5k/board-ip5160dev.c
++ *   Platform initialization for ip5160dev board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++#include <asm/ubicom32suart.h>
++#endif
++
++/*
++ * Factory Default Button on the board at PXn
++ * TODO: This is just a placeholder and it needs to include proper header files
++ */
++struct ubicom32fdb_platform_data {
++	int		fdb_gpio;
++	bool		fdb_polarity;
++};
++
++static struct ubicom32fdb_platform_data ip5160dev_fdb_data = {
++	.fdb_gpio		= 0,
++	.fdb_polarity		= true,
++};
++
++static struct platform_device ip5160dev_fdb_device = {
++	.name	= "ubicom32fdb",
++	.id	= -1,
++	.dev	= {
++		.platform_data = &ip5160dev_fdb_data,
++	},
++};
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++static struct resource ip5160dev_ubicom32_suart_resources[] = {
++        {
++		.start	= RD,
++		.end	= RD,
++		.flags	= IORESOURCE_MEM,
++        },
++        {
++		.start	= PORT_OTHER_INT(RD),
++		.end	= PORT_OTHER_INT(RD),
++		.flags	= IORESOURCE_IRQ,
++        },
++        {
++		.start	= 240000000,
++		.end	= 240000000,
++		.flags	= UBICOM32_SUART_IORESOURCE_CLOCK,
++        },
++};
++
++static struct platform_device ip5160dev_ubicom32_suart_device = {
++	.name		= "ubicom32suart",
++	.id		= -1,
++        .num_resources  = ARRAY_SIZE(ip5160dev_ubicom32_suart_resources),
++        .resource       = ip5160dev_ubicom32_suart_resources,
++};
++#endif
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip5160dev_devices[] __initdata = {
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++	&ip5160dev_ubicom32_suart_device,
++#endif
++	&ip5160dev_fdb_device,
++};
++
++/*
++ * ip5160dev_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip5160dev_init(void)
++{
++	ubi_gpio_init();
++	printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++	platform_add_devices(ip5160dev_devices, ARRAY_SIZE(ip5160dev_devices));
++	return 0;
++}
++
++arch_initcall(ip5160dev_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/board-ip5160rgw.c
+@@ -0,0 +1,76 @@
++/*
++ * arch/ubicom32/mach-ip5k/board-ip5160rgw.c
++ *   Platform initialization for ip5160rgw board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <asm/board.h>
++#include <asm/machdep.h>
++
++/*
++ * Factory Default Button on the board at PXn
++ * TODO: This is just a placeholder and it needs to include proper header files
++ */
++struct ubicom32fdb_platform_data {
++	int		fdb_gpio;
++	bool		fdb_polarity;
++};
++
++static struct ubicom32fdb_platform_data ip5160rgw_fdb_data = {
++	.fdb_gpio		= 0,
++	.fdb_polarity		= true,
++};
++
++static struct platform_device ip5160rgw_fdb_device = {
++	.name	= "ubicom32fdb",
++	.id	= -1,
++	.dev	= {
++		.platform_data = &ip5160rgw_fdb_data,
++	},
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip5160rgw_devices[] __initdata = {
++	&ip5160rgw_fdb_device,
++};
++
++/*
++ * ip5160rgw_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip5160rgw_init(void)
++{
++	ubi_gpio_init();
++	printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++	platform_add_devices(ip5160rgw_devices, ARRAY_SIZE(ip5160rgw_devices));
++	return 0;
++}
++
++arch_initcall(ip5160rgw_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/board-ip5170dpf.c
+@@ -0,0 +1,280 @@
++/*
++ * arch/ubicom32/mach-ip5k/board-ip5170dpf.c
++ *   Platform initialization for ip5160dpf board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <linux/leds.h>
++
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++
++#include <linux/input.h>
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32hid.h>
++#include <asm/vdc_tio.h>
++
++/*
++ * LEDs
++ *
++ * WLAN			PD9	(Note this is shared with MISO, but we don't use it)
++ * WPS			PD8
++ *
++ * TODO: check triggers, are they generic?
++ */
++static struct gpio_led ip5170dpf_gpio_leds[] = {
++	{
++		.name			= "d31:green:WLAN1",
++		.default_trigger	= "WLAN1",
++		.gpio			= GPIO_RD_9,
++		.active_low		= 1,
++	},
++	{
++		.name			= "d30:green:WPS",
++		.default_trigger	= "WPS",
++		.gpio			= GPIO_RD_8,
++		.active_low		= 1,
++	},
++};
++
++static struct gpio_led_platform_data ip5170dpf_gpio_led_platform_data = {
++	.num_leds	= 2,
++	.leds		= ip5170dpf_gpio_leds,
++};
++
++static struct platform_device ip5170dpf_gpio_leds_device = {
++	.name		= "leds-gpio",
++	.id		= -1,
++	.dev = {
++		.platform_data = &ip5170dpf_gpio_led_platform_data,
++	},
++};
++
++/*
++ * Backlight on the board PD0, hardware PWM
++ */
++static const struct ubicom32hid_button ip5170dpf_ubicom32hid_buttons[] = {
++	{
++		.type	= EV_KEY,
++		.code	= KEY_UP,
++		.bit	= 0,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_LEFT,
++		.bit	= 1,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_RIGHT,
++		.bit	= 2,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_DOWN,
++		.bit	= 3,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_ENTER,
++		.bit	= 4,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_MENU,
++		.bit	= 5,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_ESC,
++		.bit	= 7,
++	},
++};
++
++static const struct ubicom32hid_ir ip5170dpf_ubicom32hid_ircodes[] = {
++	{
++		.type		= EV_KEY,
++		.code		= KEY_UP,
++		.ir_code	= 0xF807916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_DOWN,
++		.ir_code	= 0xF20D916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_LEFT,
++		.ir_code	= 0xF609916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_RIGHT,
++		.ir_code	= 0xF40B916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_ENTER,
++		.ir_code	= 0xF50A916E
++	},
++	{	/* rotate */
++		.type		= EV_KEY,
++		.code		= KEY_FN_F1,
++		.ir_code	= 0xF906916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_MENU,
++		.ir_code	= 0xF708916E
++	},
++	{	/* font size */
++		.type		= EV_KEY,
++		.code		= KEY_FN_F2,
++		.ir_code	= 0xF30C916E
++	},
++	{	
++		.type		= EV_KEY,
++		.code		= KEY_ESC,
++		.ir_code	= 0xF10E916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_VOLUMEUP,
++		.ir_code	= 0xF00F916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_VOLUMEDOWN,
++		.ir_code	= 0xED12916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_MUTE,
++		.ir_code	= 0xEA15916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_INFO,
++		.ir_code	= 0xEF10916E
++	},
++	{	/* Like */
++		.type		= EV_KEY,
++		.code		= KEY_FN_F3,
++		.ir_code	= 0xEE11916E
++	},
++	{	/* Dislike */
++		.type		= EV_KEY,
++		.code		= KEY_FN_F4,
++		.ir_code	= 0xEB14916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_POWER,
++		.ir_code	= 0xFD02916E
++	},
++};
++
++static struct ubicom32hid_platform_data ip5170dpf_ubicom32hid_platform_data = {
++	.gpio_reset		= GPIO_RA_4,
++	.gpio_reset_polarity	= 0,
++	.type			= UBICOM32HID_BL_TYPE_BINARY,
++	.invert			= 0,
++	.default_intensity	= 1,
++	.buttons		= ip5170dpf_ubicom32hid_buttons,
++	.nbuttons		= ARRAY_SIZE(ip5170dpf_ubicom32hid_buttons),
++	.ircodes		= ip5170dpf_ubicom32hid_ircodes,
++	.nircodes		= ARRAY_SIZE(ip5170dpf_ubicom32hid_ircodes),
++};
++
++/*
++ * Devices on the I2C bus
++ */
++static struct i2c_board_info __initdata ip5170dpf_i2c_board_info[] = {
++	/*
++	 * U24, ubicom32hid
++	 */
++	{
++		.type		= "ubicom32hid",
++		.addr		= 0x08,
++		.platform_data	= &ip5170dpf_ubicom32hid_platform_data,
++	},
++
++	/*
++	 * U14, CS4350 DAC, address 0x4B
++	 */
++};
++
++/*
++ * I2C bus on the board, SDA PF13, SCL PF14
++ */
++static struct i2c_gpio_platform_data ip5170dpf_i2c_data = {
++	.sda_pin		= GPIO_RF_13,
++	.scl_pin		= GPIO_RF_14,
++	.sda_is_open_drain	= 0,
++	.scl_is_open_drain	= 0,
++	.scl_is_output_only	= 1,
++	.udelay			= 5,
++};
++
++static struct platform_device ip5170dpf_i2c_device = {
++	.name	= "i2c-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &ip5170dpf_i2c_data,
++	},
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip5170dpf_devices[] __initdata = {
++	&ip5170dpf_i2c_device,
++	&ip5170dpf_gpio_leds_device,
++};
++
++/*
++ * ip5170dpf_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip5170dpf_init(void)
++{
++	ubi_gpio_init();
++
++	vdc_tio_init();
++
++	printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++	platform_add_devices(ip5170dpf_devices, ARRAY_SIZE(ip5170dpf_devices));
++
++	printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++	i2c_register_board_info(0, ip5170dpf_i2c_board_info, ARRAY_SIZE(ip5170dpf_i2c_board_info));
++
++	return 0;
++}
++
++arch_initcall(ip5170dpf_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/Kconfig
+@@ -0,0 +1,32 @@
++
++config IP5170DPF
++	bool "IP5170DPF"
++	select UBICOM32_V3
++	select I2C
++	select I2C_GPIO
++	select FB
++	select FB_UBICOM32
++	select BACKLIGHT_LCD_SUPPORT
++	select BACKLIGHT_CLASS_DEVICE
++	select UBICOM_HID
++	select NEW_LEDS
++	select LEDS_CLASS
++	select LEDS_GPIO
++	select BRD_64MB
++	help
++		IP5170 Digital Picture Frame board, 8005-1113, IP5K-BEV-0011-13 v1.3
++
++config IP5160DEV
++	bool "IP5160Dev_Ver1Dot1"
++	select UBICOM32_V3
++	select BRD_64MB
++	help
++		Ubicom StreamEngine 5000 Development Board, IP5K-BDV-0004-11 v1.1
++
++config IP5160EVAL
++	bool "IP5160RGWEval_Ver2Rev2"
++	select UBICOM32_V3
++	select BRD_32MB
++	help
++		Ubicom StreamEngine 5000 RGW Evaluation Board, IP5K-RGW-0004-11 v2.2
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/Makefile
+@@ -0,0 +1,32 @@
++#
++# arch/ubicom32/mach-ip5k/Makefile
++#	Makefile for boards which have an ip5k on them.
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not, 
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++
++obj-$(CONFIG_IP5170DPF)		+= board-ip5170dpf.o
++obj-$(CONFIG_IP5160DEV)		+= board-ip5160dev.o
++obj-$(CONFIG_IP5160EVAL)	+= board-ip5160rgw.o
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7145dpf.c
+@@ -0,0 +1,716 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7145dpf.c
++ *   Board file for IP7145DPF, rev 1.0, P/N 8007-0410
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++
++#include <linux/input.h>
++
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++#include <linux/i2c/pca953x.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32input.h>
++#include <asm/ubicom32input_i2c.h>
++#include <asm/ubicom32bl.h>
++#include <asm/ubicom32lcd.h>
++#include <asm/vdc_tio.h>
++
++#include <asm/ubicom32sd.h>
++#include <asm/sd_tio.h>
++#include <asm/devtree.h>
++#include <asm/audio_tio.h>
++
++#include <asm/ring_tio.h>
++
++/******************************************************************************
++ * SD/IO Port F (Slot 1) platform data
++ */
++static struct resource ip7145dpf_portf_sd_resources[] = {
++	/*
++	 * Send IRQ
++	 */
++	[0] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Receive IRQ
++	 */
++	[1] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Memory Mapped Registers
++	 */
++	[2] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_MEM,
++	},
++};
++
++static struct ubicom32sd_card ip7145dpf_portf_sd_cards[] = {
++	[0] = {
++		.pin_wp		= IP7145DPF_IOB0,
++		.wp_polarity	= 1,
++		.pin_pwr	= IP7145DPF_IOB4,
++		.pin_cd		= GPIO_RA_4,
++	},
++	[1] = {
++		.pin_wp		= IP7145DPF_IOB1,
++		.wp_polarity	= 1,
++		.pin_pwr	= IP7145DPF_IOB5,
++		.pin_cd		= GPIO_RA_6,
++	},
++};
++
++static struct ubicom32sd_platform_data ip7145dpf_portf_sd_platform_data = {
++	.ncards		= 2,
++	.cards		= ip7145dpf_portf_sd_cards, 
++};
++
++static struct platform_device ip7145dpf_portf_sd_device = {
++	.name		= "ubicom32sd",
++	.id		= 0,
++	.resource	= ip7145dpf_portf_sd_resources,
++	.num_resources	= ARRAY_SIZE(ip7145dpf_portf_sd_resources),
++	.dev		= {
++			.platform_data = &ip7145dpf_portf_sd_platform_data,
++	},
++
++};
++
++/*
++ * ip7145dpf_portf_sd_init
++ */
++static void ip7145dpf_portf_sd_init(void)
++{
++	/*
++	 * Check the device tree for the sd_tio
++	 */
++	struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd");
++	if (!sd_node) {
++		printk(KERN_INFO "PortF SDTIO not found\n");
++		return;
++	}
++
++	/*
++	 * Fill in the resources and platform data from devtree information
++	 */
++	ip7145dpf_portf_sd_resources[0].start = sd_node->dn.sendirq;
++	ip7145dpf_portf_sd_resources[1].start = sd_node->dn.recvirq;
++	ip7145dpf_portf_sd_resources[2].start = (u32_t)&(sd_node->regs);
++	ip7145dpf_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
++
++	platform_device_register(&ip7145dpf_portf_sd_device);
++}
++
++/******************************************************************************
++ * SD/IO Port B (Slot 2) platform data
++ */
++static struct resource ip7145dpf_portb_sd_resources[] = {
++	/*
++	 * Send IRQ
++	 */
++	[0] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Receive IRQ
++	 */
++	[1] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Memory Mapped Registers
++	 */
++	[2] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_MEM,
++	},
++};
++
++static struct ubicom32sd_card ip7145dpf_portb_sd_cards[] = {
++	[0] = {
++		.pin_wp		= IP7145DPF_IOB2,
++		.wp_polarity	= 1,
++		.pin_pwr	= IP7145DPF_IOB6,
++		.pin_cd		= IP7145DPF_IOB3,
++	},
++};
++
++static struct ubicom32sd_platform_data ip7145dpf_portb_sd_platform_data = {
++	.ncards		= 1,
++	.cards		= ip7145dpf_portb_sd_cards,
++};
++
++static struct platform_device ip7145dpf_portb_sd_device = {
++	.name		= "ubicom32sd",
++	.id		= 1,
++	.resource	= ip7145dpf_portb_sd_resources,
++	.num_resources	= ARRAY_SIZE(ip7145dpf_portb_sd_resources),
++	.dev		= {
++			.platform_data = &ip7145dpf_portb_sd_platform_data,
++	},
++
++};
++
++/*
++ * ip7145dpf_portb_sd_init
++ */
++static void ip7145dpf_portb_sd_init(void)
++{
++	/*
++	 * Check the device tree for the sd_tio
++	 */
++	struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd");
++	if (!sd_node) {
++		printk(KERN_INFO "PortB SDTIO not found\n");
++		return;
++	}
++
++	/*
++	 * Fill in the resources and platform data from devtree information
++	 */
++	ip7145dpf_portb_sd_resources[0].start = sd_node->dn.sendirq;
++	ip7145dpf_portb_sd_resources[1].start = sd_node->dn.recvirq;
++	ip7145dpf_portb_sd_resources[2].start = (u32_t)&(sd_node->regs);
++	ip7145dpf_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
++
++	platform_device_register(&ip7145dpf_portb_sd_device);
++}
++
++
++#ifdef IP7145DPF_USE_MMC_SPI
++/******************************************************************************
++ * SPI over GPIO (MMC_SPI)
++ */
++#include <linux/spi/spi.h>
++#include <linux/spi/mmc_spi.h>
++#include <linux/mmc/host.h>
++#include <asm/ubicom32-spi-gpio.h>
++
++#define MMC_CS	GPIO_RF_5	// PF5 D3
++#define MMC_CD	GPIO_RA_4	// PA4 CD
++#define MMC_WP	IP7145DPF_IOB0	// IOB0 WP
++#define MMC_PWR	IP7145DPF_IOB4	// IOB4 PWR
++
++/*
++ * SPI bus over GPIO (for SD card)
++ */
++static struct ubicom32_spi_gpio_platform_data ip7145dpf_spi_gpio_data = {
++	.pin_mosi	= GPIO_RF_0,	// PF0 CMD
++	.pin_miso	= GPIO_RF_2,	// PF2 D0
++	.pin_clk	= GPIO_RF_1,	// PF1 CLK
++	.bus_num	= 0,		// We'll call this SPI bus 0
++	.num_chipselect	= 1,		// only one device on this SPI bus 
++};
++
++static struct platform_device ip7145dpf_spi_gpio_device = {
++	.name	= "ubicom32-spi-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &ip7145dpf_spi_gpio_data,
++	},
++};
++
++/*
++ * ip7145dpf_mmc_spi_setpower_slot_a
++ *	Set the power state for slot A
++ */
++static void ip7145dpf_mmc_spi_setpower_slot_a(struct device *dev, unsigned int vdd)
++{
++	struct mmc_spi_platform_data *pd = dev->platform_data;
++
++	/*
++	 * Power is inverted, we could tell the IOB to do it, but it's cleaner this way.
++	 */
++	if ((1 << vdd) & pd->ocr_mask) {
++		gpio_set_value(MMC_PWR, 0);
++		return;
++	}
++	gpio_set_value(MMC_PWR, 1);
++}
++
++/*
++ * ip7145dpf_mmc_spi_get_cd_slot_a
++ *	Get the CD bit for slot A
++ */
++static int ip7145dpf_mmc_spi_get_cd_slot_a(struct device *dev)
++{
++	/*
++	 * Note that the sense of the GPIO is inverted
++	 */
++	return !gpio_get_value(MMC_CD);
++}
++
++/*
++ * ip7145dpf_mmc_spi_get_ro_slot_a
++ *	Get the WP bit for slot A
++ */
++static int ip7145dpf_mmc_spi_get_ro_slot_a(struct device *dev)
++{
++	/*
++	 * Note that the sense of the GPIO is inverted, we could tell the IOB to do it, but
++	 * it's clearer this way.
++	 */
++	return !gpio_get_value(MMC_WP);
++}
++
++/*
++ * ip7145dpf_mmc_spi_exit_slot_a
++ *	Free the appropriate GPIOs for slot A SD slot.
++ */
++static void ip7145dpf_mmc_spi_exit_slot_a(struct device *dev, void *appdata)
++{
++	gpio_free(MMC_CD);
++	gpio_free(MMC_CS);
++	gpio_free(MMC_WP);
++	gpio_free(MMC_PWR);
++	platform_device_unregister(&ip7145dpf_spi_gpio_device);
++}
++
++/*
++ * ip7145dpf_mmc_spi_init_slot_a
++ *	Allocate the appropriate GPIOs for slot A SD slot.
++ *	WP is on IOB0, CD is PA4, CS is on PF5
++ *	TODO: make CD an interrupt
++ */
++static int ip7145dpf_mmc_spi_init_slot_a(void)
++{
++	int ret = gpio_request(MMC_CD, "mmc-a-cd");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request mmc-a-cd pin\n", __FUNCTION__);
++		return -ENOSYS;
++	}
++	gpio_direction_input(MMC_CD);
++
++	ret = gpio_request(MMC_CS, "mmc-a-cs");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request mmc-a-cs pin\n", __FUNCTION__);
++		goto no_cs;
++	}
++	gpio_direction_output(MMC_CS, 0);
++
++	ret = gpio_request(MMC_WP, "mmc-a-wp");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request mmc-a-wp pin\n", __FUNCTION__);
++		goto no_wp;
++	}
++	gpio_direction_input(MMC_WP);
++
++	/*
++	 * Start off with power off
++	 */
++	ret = gpio_request(MMC_PWR, "mmc-a-pwr");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request mmc-a-pwr pin\n", __FUNCTION__);
++		goto no_pwr;
++	}
++	ret = gpio_direction_output(MMC_PWR, 1);
++
++	return 0;
++
++no_pwr:
++	gpio_free(MMC_WP);
++
++no_wp:
++	gpio_free(MMC_CS);
++
++no_cs:
++	gpio_free(MMC_CD);
++	return -ENOSYS;
++}
++
++/*
++ * MMC_SPI driver (currently bitbang)
++ */
++static struct mmc_spi_platform_data ip7145dpf_mmc_platform_data = {
++	.ocr_mask	= MMC_VDD_33_34,
++	.exit		= ip7145dpf_mmc_spi_exit_slot_a,
++	.get_ro		= ip7145dpf_mmc_spi_get_ro_slot_a,
++	.get_cd		= ip7145dpf_mmc_spi_get_cd_slot_a,
++
++	.setpower	= ip7145dpf_mmc_spi_setpower_slot_a,
++	.powerup_msecs	= 500,
++
++	.detect_delay	= 100,
++
++	.caps		= MMC_CAP_NEEDS_POLL,
++};
++
++static struct ubicom32_spi_gpio_controller_data ip7145dpf_mmc_controller_data = {
++	.pin_cs =  MMC_CS,
++};
++
++static struct spi_board_info ip7145dpf_spi_board_info[] = {
++	{
++		.modalias = "mmc_spi",
++		.bus_num = 0,
++		.chip_select = 0,
++		.max_speed_hz = 2000000,
++		.platform_data = &ip7145dpf_mmc_platform_data,
++		.controller_data = &ip7145dpf_mmc_controller_data,
++	}
++};
++#endif /* IP7145DPF_USE_MMC_SPI */
++
++/*
++ * ip7145dpf_u72_setup
++ *	Called by I2C to tell us that u72 is setup.
++ *
++ * This function is called by I2C to tell us that u72 has been setup.  All
++ * devices which rely on this chip being initialized (or even present) need to
++ * be initialized in this function otherwise they may get initialized too early.
++ *
++ * Currently the only device depending on u72 is the SPI
++ */
++static int __init ip7145dpf_u72_setup(struct i2c_client *client, unsigned gpio, unsigned ngpio, void *context)
++{
++#ifdef IP7145DPF_USE_MMC_SPI
++	if (ip7145dpf_mmc_spi_init_slot_a()) {
++		printk(KERN_ERR "%s: could not request mmc resources\n", __FUNCTION__);
++	} else {
++		printk(KERN_INFO "%s: registering SPI resources\n", __FUNCTION__);
++		spi_register_board_info(ip7145dpf_spi_board_info, ARRAY_SIZE(ip7145dpf_spi_board_info));
++		platform_device_register(&ip7145dpf_spi_gpio_device);
++	}
++#else
++	/*
++	 * Initialize the Port F/Port B SD slots
++	 */
++	ip7145dpf_portf_sd_init();
++	ip7145dpf_portb_sd_init();
++#endif
++	return 0;
++}
++
++/******************************************************************************
++ * LCD VGH on the board at PE6
++ */
++static struct ubicom32lcd_platform_data ip7145dpf_lcd_data = {
++	.vgh_gpio		= GPIO_RE_6,
++	.vgh_polarity		= true,
++};
++
++static struct platform_device ip7145dpf_lcd_device = {
++	.name	= "ubicom32lcd",
++	.id	= -1,
++	.dev	= {
++		.platform_data = &ip7145dpf_lcd_data,
++	},
++};
++
++/******************************************************************************
++ * Backlight on the board PD0, hardware PWM
++ */
++static struct ubicom32bl_platform_data ip7145dpf_backlight_data = {
++	.type			= UBICOM32BL_TYPE_PWM,
++	.pwm_channel		= 2,
++	.pwm_prescale		= 15,
++	.pwm_period		= 60,
++	.default_intensity	= 0x80,
++};
++
++static struct platform_device ip7145dpf_backlight_device = {
++	.name	= "ubicom32bl",
++	.id	= -1,
++	.dev	= {
++		.platform_data = &ip7145dpf_backlight_data,
++	},
++};
++
++/******************************************************************************
++ * Ubicom32Input on I2C, U48 MAX7310, address 0x18, 8 bits
++ */
++static struct ubicom32input_i2c_button ip7145dpf_ubicom32input_i2c_u48_buttons[] = {
++	{
++		.type		= EV_KEY,
++		.code		= KEY_UP,
++		.bit		= 0,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_LEFT,
++		.bit		= 1,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_RIGHT,
++		.bit		= 2,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_DOWN,
++		.bit		= 3,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_ENTER,
++		.bit		= 4,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_MENU,
++		.bit		= 5,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_ESC,
++		.bit		= 6,
++		.active_low	= 1,
++	},
++};
++
++static struct ubicom32input_i2c_platform_data ip7145dpf_ubicom32input_i2c_u48_platform_data = {
++	.buttons	= ip7145dpf_ubicom32input_i2c_u48_buttons,
++	.nbuttons	= ARRAY_SIZE(ip7145dpf_ubicom32input_i2c_u48_buttons),
++	.name		= "Ubicom32 Input I2C U48",
++};
++
++/******************************************************************************
++ * Additional GPIO chips
++ */
++static struct pca953x_platform_data ip7145dpf_gpio_u72_platform_data = {
++	.gpio_base = IP7145DPF_U72_BASE,
++	.setup = ip7145dpf_u72_setup,
++};
++
++/******************************************************************************
++ * Devices on the I2C bus
++ */
++static struct i2c_board_info __initdata ip7145dpf_i2c_board_info[] = {
++	/*
++	 * U51, S35390A RTC, address 0x30
++	 */
++	{
++		.type		= "s35390a",
++		.addr		= 0x30,
++	},
++
++	/*
++	 * U48, MAX7310 IO expander, 8 bits, address 0x18
++	 */
++	{
++		.type		= "ubicom32in_max7310",
++		.addr		= 0x18,
++		.platform_data	= &ip7145dpf_ubicom32input_i2c_u48_platform_data,
++	},
++
++	/*
++	 * U72, MAX7310 IOB expander, 8 bits, address 0x19
++	 */
++	{
++		.type		= "max7310",
++		.addr		= 0x19,
++		.platform_data	= &ip7145dpf_gpio_u72_platform_data,
++	},
++};
++
++/*
++ * I2C bus on the board, SDA PE1, SCL PE2
++ */
++static struct i2c_gpio_platform_data ip7145dpf_i2c_data = {
++	.sda_pin		= GPIO_RE_1,
++	.scl_pin		= GPIO_RE_2,
++	.sda_is_open_drain	= 0,
++	.scl_is_open_drain	= 0,
++};
++
++static struct platform_device ip7145dpf_i2c_device = {
++	.name	= "i2c-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &ip7145dpf_i2c_data,
++	},
++};
++
++/******************************************************************************
++ * Use ubicom32input driver to monitor the various pushbuttons on this board.
++ *
++ * WPS			PF12
++ * FACT_DEFAULT		PF13
++ * POWER		PE4
++ *
++ * Not sutable for the keypad buttons since those run on I2C GPIO.  The polling
++ * of ubicom32input would seem to be excessive for this.
++ *
++ * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default
++ */
++static struct ubicom32input_button ip7145dpf_ubicom32input_buttons[] = {
++	{
++		.type		= EV_KEY,
++		.code		= KEY_FN_F1,
++		.gpio		= GPIO_RF_12,
++		.desc		= "WPS",
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_FN_F2,
++		.gpio		= GPIO_RF_13,
++		.desc		= "Factory Default",
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_POWER,
++		.gpio		= GPIO_RE_4,
++		.desc		= "Power",
++		.active_low	= 1,
++	},
++};
++
++static struct ubicom32input_platform_data ip7145dpf_ubicom32input_data = {
++	.buttons	= ip7145dpf_ubicom32input_buttons,
++	.nbuttons	= ARRAY_SIZE(ip7145dpf_ubicom32input_buttons),
++};
++
++static struct platform_device ip7145dpf_ubicom32input_device = {
++	.name	= "ubicom32input",
++	.id	= -1,
++	.dev	= {
++		.platform_data = &ip7145dpf_ubicom32input_data,
++	},
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7145dpf_devices[] __initdata = {
++	&ip7145dpf_i2c_device,
++	&ip7145dpf_lcd_device,
++	&ip7145dpf_backlight_device,
++	&ip7145dpf_ubicom32input_device,
++};
++
++/*
++ * ip7145dpf_power_off
++ *	Called to turn the power off for this board
++ */
++static void ip7145dpf_power_off(void)
++{
++	gpio_set_value(GPIO_RE_5, 0);
++}
++
++/*
++ * ip7145dpf_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip7145dpf_init(void)
++{
++	int ret;
++	struct platform_device *audio_dev;
++
++	ubi_gpio_init();
++
++#ifdef CONFIG_UIO_UBICOM32RING
++	ring_tio_init("decoder_ring");
++#endif
++
++	/*
++	 * Start up the video driver first
++	 */
++	vdc_tio_init();
++
++	/*
++	 * Take over holding of the power from the system
++	 */
++	ret = gpio_request(GPIO_RE_5, "power_hold");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request power hold GPIO\n", __FUNCTION__);
++	}
++	gpio_direction_output(GPIO_RE_5, 1);
++	mach_power_off = ip7145dpf_power_off;
++
++	/*
++	 * USB SEL_HOST_USB line
++	 */
++	ret = gpio_request(GPIO_RF_11, "SEL_HOST_USB");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request SEL_HOST_USB GPIO\n", __FUNCTION__);
++	}
++	gpio_direction_output(GPIO_RF_11, 0);
++
++	/*
++	 * Setup audio
++	 */
++	audio_dev = audio_tio_alloc("snd-ubi32-generic", "audiotio-i2sout", 0);
++	if (audio_dev) {
++		platform_device_register(audio_dev);
++	}
++
++	/*
++	 * Register all of the devices we have on this board
++	 */
++	printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++	platform_add_devices(ip7145dpf_devices, ARRAY_SIZE(ip7145dpf_devices));
++
++	/*
++	 * Register all of the devices which sit on the I2C bus
++	 */
++	printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++	i2c_register_board_info(0, ip7145dpf_i2c_board_info, ARRAY_SIZE(ip7145dpf_i2c_board_info));
++
++	/*
++	 * We have to initialize the SPI after the I2C IOB gets setup. SPI is initialized in 
++	 * ip7145dpf_u72_setup
++	 */
++
++	return 0;
++}
++
++arch_initcall(ip7145dpf_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7160bringup.c
+@@ -0,0 +1,135 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7160bringup.c
++ *   Support for the IP7160 bringup board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <linux/leds.h>
++#include <linux/delay.h>
++#include <linux/input.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32input.h>
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++#include <asm/ubicom32suart.h>
++#endif
++
++/*
++ * Use ubicom32input driver to monitor the various pushbuttons on this board.
++ *
++ * WPS			PD5
++ * FACT_DEFAULT		PD6
++ *
++ * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default
++ */
++static struct ubicom32input_button ip7160bringup_ubicom32input_buttons[] = {
++	{
++		.type		= EV_KEY,
++		.code		= KEY_FN_F1,
++		.gpio		= GPIO_RD_5,
++		.desc		= "WPS",
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_FN_F2,
++		.gpio		= GPIO_RD_6,
++		.desc		= "Factory Default",
++		.active_low	= 1,
++	},
++};
++
++static struct ubicom32input_platform_data ip7160bringup_ubicom32input_data = {
++	.buttons	= ip7160bringup_ubicom32input_buttons,
++	.nbuttons	= ARRAY_SIZE(ip7160bringup_ubicom32input_buttons),
++};
++
++static struct platform_device ip7160bringup_ubicom32input_device = {
++	.name	= "ubicom32input",
++	.id	= -1,
++	.dev	= {
++		.platform_data = &ip7160bringup_ubicom32input_data,
++	},
++};
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++static struct resource ip7160bringup_ubicom32_suart_resources[] = {
++	{
++		.start	= RE,
++		.end	= RE,
++		.flags	= IORESOURCE_MEM,
++	},
++	{
++		.start	= PORT_OTHER_INT(RE),
++		.end	= PORT_OTHER_INT(RE),
++		.flags	= IORESOURCE_IRQ,
++	},
++	{
++		.start	= 250000000,
++		.end	= 250000000,
++		.flags	= UBICOM32_SUART_IORESOURCE_CLOCK,
++	},
++};
++
++static struct platform_device ip7160bringup_ubicom32_suart_device = {
++	.name		= "ubicom32suart",
++	.id		= -1,
++	.num_resources  = ARRAY_SIZE(ip7160bringup_ubicom32_suart_resources),
++	.resource	= ip7160bringup_ubicom32_suart_resources,
++};
++#endif
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7160bringup_devices[] __initdata = {
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++	&ip7160bringup_ubicom32_suart_device,
++#endif
++	&ip7160bringup_ubicom32input_device,
++};
++
++/*
++ * ip7160bringup_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip7160bringup_init(void)
++{
++	board_init();
++
++	ubi_gpio_init();
++
++	printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++	platform_add_devices(ip7160bringup_devices, ARRAY_SIZE(ip7160bringup_devices));
++
++	return 0;
++}
++
++arch_initcall(ip7160bringup_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7160dpf.c
+@@ -0,0 +1,327 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7160dpf.c
++ *   Platform initialization for ip7160dpf board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++#include <linux/gpio.h>
++
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++
++#include <linux/input.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32hid.h>
++#include <asm/vdc_tio.h>
++#include <asm/audio_tio.h>
++
++/*
++ * Backlight on the board PD0, hardware PWM
++ */
++static const struct ubicom32hid_button ip7160dpf_ubicom32hid_buttons[] = {
++	{
++		.type	= EV_KEY,
++		.code	= KEY_UP,
++		.bit	= 0,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_LEFT,
++		.bit	= 1,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_RIGHT,
++		.bit	= 2,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_DOWN,
++		.bit	= 3,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_ENTER,
++		.bit	= 4,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_MENU,
++		.bit	= 5,
++	},
++	{
++		.type	= EV_KEY,
++		.code	= KEY_ESC,
++		.bit	= 7,
++	},
++};
++
++static const struct ubicom32hid_ir ip7160dpf_ubicom32hid_ircodes[] = {
++	{
++		.type		= EV_KEY,
++		.code		= KEY_UP,
++		.ir_code	= 0xF807916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_DOWN,
++		.ir_code	= 0xF20D916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_LEFT,
++		.ir_code	= 0xF609916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_RIGHT,
++		.ir_code	= 0xF40B916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_ENTER,
++		.ir_code	= 0xF50A916E
++	},
++	{	/* rotate */
++		.type		= EV_KEY,
++		.code		= KEY_FN_F1,
++		.ir_code	= 0xF906916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_MENU,
++		.ir_code	= 0xF708916E
++	},
++	{	/* font size */
++		.type		= EV_KEY,
++		.code		= KEY_FN_F2,
++		.ir_code	= 0xF30C916E
++	},
++	{	
++		.type		= EV_KEY,
++		.code		= KEY_ESC,
++		.ir_code	= 0xF10E916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_VOLUMEUP,
++		.ir_code	= 0xF00F916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_VOLUMEDOWN,
++		.ir_code	= 0xED12916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_MUTE,
++		.ir_code	= 0xEA15916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_INFO,
++		.ir_code	= 0xEF10916E
++	},
++	{	/* Like */
++		.type		= EV_KEY,
++		.code		= KEY_FN_F3,
++		.ir_code	= 0xEE11916E
++	},
++	{	/* Dislike */
++		.type		= EV_KEY,
++		.code		= KEY_FN_F4,
++		.ir_code	= 0xEB14916E
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_POWER,
++		.ir_code	= 0xFD02916E
++	},
++};
++
++static struct ubicom32hid_platform_data ip7160dpf_ubicom32hid_platform_data = {
++	.gpio_reset		= GPIO_RI_5,
++	.gpio_reset_polarity	= 0,
++	.type			= UBICOM32HID_BL_TYPE_PWM,
++	.invert			= 0,
++	.default_intensity	= 128,
++	.buttons		= ip7160dpf_ubicom32hid_buttons,
++	.nbuttons		= ARRAY_SIZE(ip7160dpf_ubicom32hid_buttons),
++	.ircodes		= ip7160dpf_ubicom32hid_ircodes,
++	.nircodes		= ARRAY_SIZE(ip7160dpf_ubicom32hid_ircodes),
++};
++
++/*
++ * Devices on the I2C bus
++ *	This board has a "bus 2" which is isolated from the main bus by U47
++ *	and pin RI0.  It should be safe to always enable bus 2 by setting
++ *	RI0 to low, however, it should be noted that on all existing configurations
++ *	of this board, U49 and U51 are not populated.
++ */
++static struct i2c_board_info __initdata ip7160dpf_i2c_board_info[] = {
++	/*
++	 * U37, CS4350 DAC, address 0x4B, bus 2
++	 *	THIS ENTRY MUST BE FIRST
++	 */
++	{
++		.type		= "cs4350",
++		.addr		= 0x4B,
++	}
++
++	/*
++	 * U24, ubicom32hid
++	 */
++	{
++		.type		= "ubicom32hid",
++		.addr		= 0x08,
++		.platform_data	= &ip7160dpf_ubicom32hid_platform_data,
++	},
++
++	/*
++	 * U49, ISL29001 Ambient Light Sensor, address 0x44, bus 2 (may not be stuffed)
++	 */
++
++	/*
++	 * U51, S35390A RTC, address 0x30, bus 2 (may not be stuffed)
++	 */
++#ifdef CONFIG_RTC_DRV_S35390A
++	{
++		.type           = "s35390a",
++		.addr           = 0x30,
++	},
++#endif
++};
++
++/*
++ * I2C bus on the board, SDA PI1, SCL PI2
++ */
++static struct i2c_gpio_platform_data ip7160dpf_i2c_data = {
++	.sda_pin		= GPIO_RI_1,
++	.scl_pin		= GPIO_RI_2,
++	.sda_is_open_drain	= 0,
++	.scl_is_open_drain	= 0,
++	.scl_is_output_only	= 1,
++	.udelay			= 6,
++};
++
++static struct platform_device ip7160dpf_i2c_device = {
++	.name	= "i2c-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &ip7160dpf_i2c_data,
++	},
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7160dpf_devices[] __initdata = {
++	&ip7160dpf_i2c_device,
++};
++
++/*
++ * ip7160dpf_power_off
++ *	Called to turn the power off for this board
++ */
++static void ip7160dpf_power_off(void)
++{
++	gpio_set_value(GPIO_RF_14, 0);
++}
++
++/*
++ * ip7160dpf_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip7160dpf_init(void)
++{
++	int ret;
++	struct platform_device *audio_dev;
++
++	ubi_gpio_init();
++
++	/*
++	 * Hold the POWER_HOLD line
++	 */
++	ret = gpio_request(GPIO_RF_14, "POWER_HOLD");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request POWER_HOLD GPIO\n", __FUNCTION__);
++	}
++	gpio_direction_output(GPIO_RF_14, 0);
++	mach_power_off = ip7160dpf_power_off;
++
++	/*
++	 * USB SEL_HOST_USB line
++	 */
++	ret = gpio_request(GPIO_RI_13, "SEL_HOST_USB");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request SEL_HOST_USB GPIO\n", __FUNCTION__);
++	}
++	gpio_direction_output(GPIO_RI_13, 0);
++
++	/*
++	 * USB/DAC nRESET line
++	 */
++	ret = gpio_request(GPIO_RI_3, "USB_DAC_nRESET");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request USB_DAC_nRESET GPIO\n", __FUNCTION__);
++	}
++	gpio_direction_output(GPIO_RI_3, 0);
++	udelay(1);
++	gpio_direction_output(GPIO_RI_3, 1);
++
++	/*
++	 * I2C BUS2 Disable line
++	 */
++	ret = gpio_request(GPIO_RI_0, "DISABLE_BUS2");
++	if (ret) {
++		printk(KERN_ERR "%s: could not request DISABLE_BUS2 GPIO\n", __FUNCTION__);
++	}
++	gpio_direction_output(GPIO_RI_0, 0);
++
++	vdc_tio_init();
++
++	printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++	platform_add_devices(ip7160dpf_devices, ARRAY_SIZE(ip7160dpf_devices));
++
++	/*
++	 * Allocate the audio driver if we can
++	 */
++	audio_dev = audio_tio_alloc("snd-ubi32-cs4350", "audiotio-i2sout", 0);
++	if (audio_dev) {
++		ip7160dpf_i2c_board_info[0].platform_data = audio_dev;
++	}
++
++	printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++	i2c_register_board_info(0, ip7160dpf_i2c_board_info, ARRAY_SIZE(ip7160dpf_i2c_board_info));
++
++	return 0;
++}
++
++arch_initcall(ip7160dpf_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7160rgw.c
+@@ -0,0 +1,255 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7160rgw.c
++ *   Platform initialization for ip7160rgw board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <linux/leds.h>
++#include <linux/delay.h>
++#include <linux/input.h>
++#include <linux/spi/spi.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32input.h>
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++#include <asm/ubicom32suart.h>
++#endif
++
++#include <asm/ubicom32-spi-gpio.h>
++#include <asm/switch-bcm539x.h>
++
++/*
++ * SPI bus over GPIO for Gigabit Ethernet Switch
++ *	U58:
++ *		MOSI	PE0
++ *		MISO	PE1
++ *		CLK	PE3
++ *		CS	PE2
++ */
++static struct ubicom32_spi_gpio_platform_data ip7160rgw_spi_gpio_data = {
++	.pin_mosi	= GPIO_RE_0,
++	.pin_miso	= GPIO_RE_1,
++	.pin_clk	= GPIO_RE_3,
++	.bus_num	= 0,		// We'll call this SPI bus 0
++	.num_chipselect	= 1,		// only one device on this SPI bus 
++	.clk_default	= 1,
++};
++
++static struct platform_device ip7160rgw_spi_gpio_device = {
++	.name	= "ubicom32-spi-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &ip7160rgw_spi_gpio_data,
++	},
++};
++
++static struct ubicom32_spi_gpio_controller_data ip7160rgw_bcm539x_controller_data = {
++	.pin_cs = GPIO_RE_2,
++};
++
++static struct switch_bcm539x_platform_data ip7160rgw_bcm539x_platform_data = {
++	.flags		= SWITCH_BCM539X_FLAG_HW_RESET,
++	.pin_cs		= GPIO_RE_2,
++	.pin_reset	= GPIO_RE_4,
++	.name		= "bcm539x",
++};
++
++static struct spi_board_info ip7160rgw_spi_board_info[] = {
++	{
++		.modalias		= "bcm539x-spi",
++		.bus_num		= 0,
++		.chip_select		= 0,
++		.max_speed_hz		= 2000000,
++		.platform_data		= &ip7160rgw_bcm539x_platform_data,
++		.controller_data	= &ip7160rgw_bcm539x_controller_data,
++		.mode			= SPI_MODE_3,
++	}
++};
++
++/*
++ * LEDs
++ *
++ * WLAN1		PD0	(PWM capable)
++ * WLAN2		PD1
++ * USB2.0		PD2
++ * Status		PD3
++ * WPS			PD4
++ *
++ * TODO: check triggers, are they generic?
++ */
++static struct gpio_led ip7160rgw_gpio_leds[] = {
++	{
++		.name			= "d53:green:WLAN1",
++		.default_trigger	= "WLAN1",
++		.gpio			= GPIO_RD_0,
++		.active_low		= 1,
++	},
++	{
++		.name			= "d54:green:WLAN2",
++		.default_trigger	= "WLAN2",
++		.gpio			= GPIO_RD_1,
++		.active_low		= 1,
++	},
++	{
++		.name			= "d55:green:USB",
++		.default_trigger	= "USB",
++		.gpio			= GPIO_RD_2,
++		.active_low		= 1,
++	},
++	{
++		.name			= "d56:green:Status",
++		.default_trigger	= "Status",
++		.gpio			= GPIO_RD_3,
++		.active_low		= 1,
++	},
++	{
++		.name			= "d57:green:WPS",
++		.default_trigger	= "WPS",
++		.gpio			= GPIO_RD_4,
++		.active_low		= 1,
++	},
++};
++
++static struct gpio_led_platform_data ip7160rgw_gpio_led_platform_data = {
++	.num_leds	= 5,
++	.leds		= ip7160rgw_gpio_leds,
++};
++
++static struct platform_device ip7160rgw_gpio_leds_device = {
++	.name		= "leds-gpio",
++	.id		= -1,
++	.dev = {
++		.platform_data = &ip7160rgw_gpio_led_platform_data,
++	},
++};
++
++/*
++ * Use ubicom32input driver to monitor the various pushbuttons on this board.
++ *
++ * WPS			PD5
++ * FACT_DEFAULT		PD6
++ *
++ * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default
++ */
++static struct ubicom32input_button ip7160rgw_ubicom32input_buttons[] = {
++	{
++		.type		= EV_KEY,
++		.code		= KEY_FN_F1,
++		.gpio		= GPIO_RD_5,
++		.desc		= "WPS",
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_FN_F2,
++		.gpio		= GPIO_RD_6,
++		.desc		= "Factory Default",
++		.active_low	= 1,
++	},
++};
++
++static struct ubicom32input_platform_data ip7160rgw_ubicom32input_data = {
++	.buttons	= ip7160rgw_ubicom32input_buttons,
++	.nbuttons	= ARRAY_SIZE(ip7160rgw_ubicom32input_buttons),
++};
++
++static struct platform_device ip7160rgw_ubicom32input_device = {
++	.name	= "ubicom32input",
++	.id	= -1,
++	.dev	= {
++		.platform_data = &ip7160rgw_ubicom32input_data,
++	},
++};
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++static struct resource ip7160rgw_ubicom32_suart_resources[] = {
++	{
++		.start	= RE,
++		.end	= RE,
++		.flags	= IORESOURCE_MEM,
++	},
++	{
++		.start	= PORT_OTHER_INT(RE),
++		.end	= PORT_OTHER_INT(RE),
++		.flags	= IORESOURCE_IRQ,
++	},
++	{
++		.start	= 250000000,
++		.end	= 250000000,
++		.flags	= UBICOM32_SUART_IORESOURCE_CLOCK,
++	},
++};
++
++static struct platform_device ip7160rgw_ubicom32_suart_device = {
++	.name		= "ubicom32suart",
++	.id		= -1,
++	.num_resources	= ARRAY_SIZE(ip7160rgw_ubicom32_suart_resources),
++	.resource	= ip7160rgw_ubicom32_suart_resources,
++};
++#endif
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7160rgw_devices[] __initdata = {
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++	&ip7160rgw_ubicom32_suart_device,
++#endif
++	&ip7160rgw_ubicom32input_device,
++	&ip7160rgw_gpio_leds_device,
++	&ip7160rgw_spi_gpio_device,
++};
++
++/*
++ * ip7160rgw_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip7160rgw_init(void)
++{
++	board_init();
++
++	/*
++	 * Rev 1.2 boards have spi in a different place than 1.1/1.0
++	 */
++	if (strcmp(board_get_revision(), "1.2") == 0) {
++		ip7160rgw_spi_gpio_data.pin_mosi = GPIO_RD_7;
++	}
++
++	ubi_gpio_init();
++
++	printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++	platform_add_devices(ip7160rgw_devices, ARRAY_SIZE(ip7160rgw_devices));
++
++	printk(KERN_INFO "%s: registering SPI resources\n", __FUNCTION__);
++	spi_register_board_info(ip7160rgw_spi_board_info, ARRAY_SIZE(ip7160rgw_spi_board_info));
++
++	return 0;
++}
++
++arch_initcall(ip7160rgw_init);
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7500av.c
+@@ -0,0 +1,167 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7500av.c
++ *   Support for IP7500 Audio Video Board + CPU module board.
++ *
++ * This file supports the IP7500 Audio Video Board:
++ *	8007-0810  Rev 1.0
++ * with one of the following CPU module boards:
++ *	8007-0510  Rev 1.0
++ *	8007-0510A Rev 1.0 (with ethernet)
++ *
++ * DIP Switch SW2 configuration: (*) default
++ *	POS 1: on(*) = PCI enabled, off = PCI disabled
++ *	POS 2: on(*) = TTYX => PA6, off = TTYX => PF12
++ *	POS 3: on(*) = TTYY => PA7, off = TTYY => PF15
++ *	POS 4: unused
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ring_tio.h>
++#include <asm/vdc_tio.h>
++#include <asm/audio_tio.h>
++#include <asm/ubi32-cs4384.h>
++
++/******************************************************************************
++ * Devices on the I2C bus
++ *
++ * BEWARE of changing the order of things in this array as we depend on
++ * certain things to be in certain places.
++ */
++static struct i2c_board_info __initdata ip7500av_i2c_board_info[] = {
++	/*
++	 * U6, CS4384 DAC, address 0x19
++	 */
++	{
++		.type		= "cs4384",
++		.addr		= 0x19,
++	},
++};
++
++/*
++ * I2C bus on the board, SDA PD1, SCL PD2
++ */
++static struct i2c_gpio_platform_data ip7500av_i2c_data = {
++	.sda_pin		= GPIO_RD_6,
++	.scl_pin		= GPIO_RD_3,
++	.sda_is_open_drain	= 0,
++	.scl_is_open_drain	= 0,
++	.udelay			= 50,
++};
++
++static struct platform_device ip7500av_i2c_device = {
++	.name	= "i2c-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &ip7500av_i2c_data,
++	},
++};
++
++/*
++ * List of possible mclks we can generate.  This depends on the CPU frequency.
++ */
++static struct ubi32_cs4384_mclk_entry ip7500av_cs4384_mclk_entries[] = {
++	{
++		.rate	=	12288000,
++		.div	=	44,
++	},
++	{
++		.rate	=	11289600,
++		.div	=	48,
++	},
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7500av_devices[] __initdata = {
++	&ip7500av_i2c_device,
++};
++
++/*
++ * ip7500av_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip7500av_init(void)
++{
++	struct platform_device *audio_dev;
++	struct platform_device *audio_dev2;
++	struct ubi32_cs4384_platform_data *cs4384_pd;
++
++	board_init();
++
++	vdc_tio_init();
++
++	printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++	platform_add_devices(ip7500av_devices, ARRAY_SIZE(ip7500av_devices));
++
++	/*
++	 * CS4384 DAC
++	 */
++	audio_dev = audio_tio_alloc("snd-ubi32-cs4384", "audiotio-i2sout", 
++			sizeof(struct ubi32_cs4384_platform_data));
++	if (audio_dev) {
++		/*
++		 * Attempt to figure out a good divisor.  This will only work
++		 * assuming the core frequency is compatible.
++		 */
++		int i;
++		unsigned int freq = processor_frequency();
++		for (i = 0; i < ARRAY_SIZE(ip7500av_cs4384_mclk_entries); i++) {
++			unsigned int div;
++			unsigned int rate = ip7500av_cs4384_mclk_entries[i].rate / 1000;
++			div = ((freq / rate) + 500) / 1000;
++			ip7500av_cs4384_mclk_entries[i].div = div;
++			printk("CS4384 mclk %d rate %u000Hz div %u act %u\n", i, rate, div, freq / div);
++		}
++
++		cs4384_pd = audio_tio_priv(audio_dev);
++		cs4384_pd->mclk_src = UBI32_CS4384_MCLK_PWM_0;
++		cs4384_pd->n_mclk = ARRAY_SIZE(ip7500av_cs4384_mclk_entries);
++		cs4384_pd->mclk_entries = ip7500av_cs4384_mclk_entries;
++		ip7500av_i2c_board_info[0].platform_data = audio_dev;
++	}
++
++	/*
++	 * SPDIF port
++	 */
++	audio_dev2 = audio_tio_alloc("snd-ubi32-generic", "audiotio-spdifout", 0);
++	if (audio_dev2) {
++		platform_device_register(audio_dev2);
++	}
++
++	/*
++	 * Register all of the devices which sit on the I2C bus
++	 */
++	printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++	i2c_register_board_info(0, ip7500av_i2c_board_info, ARRAY_SIZE(ip7500av_i2c_board_info));
++
++	ubi_gpio_init();
++
++	return 0;
++}
++arch_initcall(ip7500av_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7500media.c
+@@ -0,0 +1,520 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7500media.c
++ *   Board file for IP7500 media board.
++ *
++ * Supports the following configuration
++ *	CPU Module:
++ *		P/N 8007-0510 rev 1.0
++ *			DIP Switch SW2 configuration: 
++ *				POS 1: on  = PCI enabled
++ *				POS 2: off = TTYX => PF12
++ *				POS 3: off = TTYY => PF15
++ *				POS 4: unused
++ *	Media Board:
++ *		P/N 8007-0610 rev 1.0
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++
++#include <linux/input.h>
++
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++#include <linux/i2c/pca953x.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32input_i2c.h>
++#include <asm/ubicom32bl.h>
++#include <asm/ubicom32lcd.h>
++#include <asm/vdc_tio.h>
++
++#include <asm/ubicom32sd.h>
++#include <asm/sd_tio.h>
++#include <asm/devtree.h>
++#include <asm/audio_tio.h>
++
++#include <asm/ring_tio.h>
++
++/******************************************************************************
++ * SD/IO Port F (Slot 1) platform data
++ */
++static struct resource ip7500media_portf_sd_resources[] = {
++	/*
++	 * Send IRQ
++	 */
++	[0] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Receive IRQ
++	 */
++	[1] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Memory Mapped Registers
++	 */
++	[2] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_MEM,
++	},
++};
++
++static struct ubicom32sd_card ip7500media_portf_sd_cards[] = {
++	[0] = {
++		.pin_wp		= IP7500MEDIA_IO16,
++		.wp_polarity	= 1,
++		.pin_pwr	= IP7500MEDIA_IO20,
++		.pin_cd		= IP7500MEDIA_IO23,
++	},
++	[1] = {
++		.pin_wp		= IP7500MEDIA_IO17,
++		.wp_polarity	= 1,
++		.pin_pwr	= IP7500MEDIA_IO21,
++		.pin_cd		= IP7500MEDIA_IO24,
++	},
++};
++
++static struct ubicom32sd_platform_data ip7500media_portf_sd_platform_data = {
++	.ncards		= 2,
++	.cards		= ip7500media_portf_sd_cards, 
++};
++
++static struct platform_device ip7500media_portf_sd_device = {
++	.name		= "ubicom32sd",
++	.id		= 0,
++	.resource	= ip7500media_portf_sd_resources,
++	.num_resources	= ARRAY_SIZE(ip7500media_portf_sd_resources),
++	.dev		= {
++			.platform_data = &ip7500media_portf_sd_platform_data,
++	},
++
++};
++
++/*
++ * ip7500media_portf_sd_init
++ */
++static void ip7500media_portf_sd_init(void)
++{
++	/*
++	 * Check the device tree for the sd_tio
++	 */
++	struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd");
++	if (!sd_node) {
++		printk(KERN_INFO "PortF SDTIO not found\n");
++		return;
++	}
++
++	/*
++	 * Fill in the resources and platform data from devtree information
++	 */
++	ip7500media_portf_sd_resources[0].start = sd_node->dn.sendirq;
++	ip7500media_portf_sd_resources[1].start = sd_node->dn.recvirq;
++	ip7500media_portf_sd_resources[2].start = (u32_t)&(sd_node->regs);
++	ip7500media_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
++
++	platform_device_register(&ip7500media_portf_sd_device);
++}
++
++/******************************************************************************
++ * SD/IO Port B (Slot 2) platform data
++ */
++static struct resource ip7500media_portb_sd_resources[] = {
++	/*
++	 * Send IRQ
++	 */
++	[0] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Receive IRQ
++	 */
++	[1] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_IRQ,
++	},
++
++	/*
++	 * Memory Mapped Registers
++	 */
++	[2] = {
++		/* 
++		 * The init routine will query the devtree and fill this in
++		 */
++		.flags	= IORESOURCE_MEM,
++	},
++};
++
++static struct ubicom32sd_card ip7500media_portb_sd_cards[] = {
++	[0] = {
++		.pin_wp		= IP7500MEDIA_IO19,
++		.wp_polarity	= 1,
++		.pin_pwr	= IP7500MEDIA_IO22,
++		.pin_cd		= IP7500MEDIA_IO18,
++	},
++};
++
++static struct ubicom32sd_platform_data ip7500media_portb_sd_platform_data = {
++	.ncards		= 1,
++	.cards		= ip7500media_portb_sd_cards,
++};
++
++static struct platform_device ip7500media_portb_sd_device = {
++	.name		= "ubicom32sd",
++	.id		= 1,
++	.resource	= ip7500media_portb_sd_resources,
++	.num_resources	= ARRAY_SIZE(ip7500media_portb_sd_resources),
++	.dev		= {
++			.platform_data = &ip7500media_portb_sd_platform_data,
++	},
++
++};
++
++/*
++ * ip7500media_portb_sd_init
++ */
++static void ip7500media_portb_sd_init(void)
++{
++	/*
++	 * Check the device tree for the sd_tio
++	 */
++	struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd");
++	if (!sd_node) {
++		printk(KERN_INFO "PortB SDTIO not found\n");
++		return;
++	}
++
++	/*
++	 * Fill in the resources and platform data from devtree information
++	 */
++	ip7500media_portb_sd_resources[0].start = sd_node->dn.sendirq;
++	ip7500media_portb_sd_resources[1].start = sd_node->dn.recvirq;
++	ip7500media_portb_sd_resources[2].start = (u32_t)&(sd_node->regs);
++	ip7500media_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
++
++	platform_device_register(&ip7500media_portb_sd_device);
++}
++
++/*
++ * ip7500media_u17_setup
++ *	Called by I2C to tell us that u17 is setup.
++ *
++ * This function is called by I2C to tell us that u17 has been setup.  All
++ * devices which rely on this chip being initialized (or even present) need to
++ * be initialized in this function otherwise they may get initialized too early.
++ *
++ * Currently the only device depending on u17 is the SDIO
++ */
++static int __init ip7500media_u17_setup(struct i2c_client *client, unsigned gpio, unsigned ngpio, void *context)
++{
++	/*
++	 * Initialize the Port F/Port B SD slots (only the enabled ports will init)
++	 */
++	ip7500media_portf_sd_init();
++	ip7500media_portb_sd_init();
++
++	return 0;
++}
++
++/******************************************************************************
++ * LCD VGH on the board at PE6
++ */
++static struct ubicom32lcd_platform_data ip7500media_lcd_data = {
++	.vgh_gpio		= GPIO_RE_7,
++	.vgh_polarity		= true,
++};
++
++static struct platform_device ip7500media_lcd_device = {
++	.name	= "ubicom32lcd",
++	.id	= -1,
++	.dev	= {
++		.platform_data = &ip7500media_lcd_data,
++	},
++};
++
++/******************************************************************************
++ * Backlight on the board PD0, hardware PWM
++ */
++static struct ubicom32bl_platform_data ip7500media_backlight_data = {
++	.type			= UBICOM32BL_TYPE_PWM,
++	.pwm_channel		= 2,
++	.pwm_prescale		= 15,
++	.pwm_period		= 60,
++	.default_intensity	= 0x80,
++};
++
++static struct platform_device ip7500media_backlight_device = {
++	.name	= "ubicom32bl",
++	.id	= -1,
++	.dev	= {
++		.platform_data = &ip7500media_backlight_data,
++	},
++};
++
++/******************************************************************************
++ * Ubicom32Input on I2C, U15 MAX7310, address 0x18, 8 bits
++ */
++static struct ubicom32input_i2c_button ip7500media_ubicom32input_i2c_u15_buttons[] = {
++	{
++		.type		= EV_KEY,
++		.code		= KEY_LEFT,
++		.bit		= 0,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_RIGHT,
++		.bit		= 1,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_UP,
++		.bit		= 2,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_DOWN,
++		.bit		= 3,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_ENTER,
++		.bit		= 4,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_MENU,
++		.bit		= 5,
++		.active_low	= 1,
++	},
++	{
++		.type		= EV_KEY,
++		.code		= KEY_ESC,
++		.bit		= 6,
++		.active_low	= 1,
++	},
++};
++
++static struct ubicom32input_i2c_platform_data ip7500media_ubicom32input_i2c_u15_platform_data = {
++	.buttons	= ip7500media_ubicom32input_i2c_u15_buttons,
++	.nbuttons	= ARRAY_SIZE(ip7500media_ubicom32input_i2c_u15_buttons),
++	.name		= "Ubicom32 Input I2C U15",
++};
++
++/******************************************************************************
++ * Additional GPIO chips
++ */
++static struct pca953x_platform_data ip7500media_gpio_u16_platform_data = {
++	.gpio_base = IP7500MEDIA_U16_BASE,
++};
++
++static struct pca953x_platform_data ip7500media_gpio_u17_platform_data = {
++	.gpio_base = IP7500MEDIA_U17_BASE,
++	.setup = ip7500media_u17_setup,
++};
++
++static struct pca953x_platform_data ip7500media_gpio_u18_platform_data = {
++	.gpio_base = IP7500MEDIA_U18_BASE,
++};
++
++/******************************************************************************
++ * Devices on the I2C bus
++ *
++ * BEWARE of changing the order of things in this array as we depend on
++ * certain things to be in certain places.
++ */
++static struct i2c_board_info __initdata ip7500media_i2c_board_info[] = {
++	/*
++	 * U6, CS4350 DAC, address 0x4B
++	 */
++	{
++		.type		= "cs4350",
++		.addr		= 0x4B,
++	},
++
++	/*
++	 * U14, S35390A RTC, address 0x30
++	 */
++	{
++		.type		= "s35390a",
++		.addr		= 0x30,
++	},
++
++	/*
++	 * U15, MAX7310 IO expander, 8 bits, address 0x18
++	 *	IO0: User I/O (J16-1) (Left)	IO4: User I/O (J16-5) (Enter)
++	 *	IO1: User I/O (J16-2) (Right)	IO5: User I/O (J16-6) (Menu)
++	 *	IO2: User I/O (J16-3) (Up)	IO6: User I/O (J16-7) (Back)
++	 *	IO3: User I/O (J16-4) (Down)	IO7: User I/O (J16-8)
++	 */
++	{
++		.type		= "ubicom32in_max7310",
++		.addr		= 0x18,
++		.platform_data	= &ip7500media_ubicom32input_i2c_u15_platform_data,
++	},
++
++	/*
++	 * U16, MAX7310 IO expander, 8 bits, address 0x1C
++	 *	IO8 : User I/O (J16-9)		IO12: User I/O (J16-17)
++	 *	IO9 : User I/O (J16-10)		IO13: User I/O (J16-18)
++	 *	IO10: User I/O (J16-15)		IO14: User I/O (J16-19)
++	 *	IO11: User I/O (J16-16)		IO15: User I/O (J16-20)
++	 */
++	{
++		.type		= "max7310",
++		.addr		= 0x1C,
++		.platform_data	= &ip7500media_gpio_u16_platform_data,
++	},
++
++	/*
++	 * U17, MAX7310 IO expander, 8 bits, address 0x1A
++	 *	IO16: SDIO1A_WP			IO20: SD1A_PWREN
++	 *	IO17: SDIO1B_WP			IO21: SD1B_PWREN
++	 *	IO18: SDIO2_CD			IO22: SD2_PWREN
++	 *	IO19: SDIO2_WP			IO23: SDIO1A_CD
++	 *	
++	 */
++	{
++		.type		= "max7310",
++		.addr		= 0x1A,
++		.platform_data	= &ip7500media_gpio_u17_platform_data,
++	},
++
++	/*
++	 * U18, MAX7310 IOB expander, 8 bits, address 0x1E
++	 *	IO24: SDIO1B_CD			IO28: User I/O TP6
++	 *	IO25: User I/O TP9		IO29: User I/O TP5
++	 *	IO26: User I/O TP8		IO30: User I/O TP4
++	 *	IO27: User I/O TP7		IO31: User I/O TP3
++	 */
++	{
++		.type		= "max7310",
++		.addr		= 0x1E,
++		.platform_data	= &ip7500media_gpio_u18_platform_data,
++	},
++};
++
++/*
++ * I2C bus on the board, SDA PE4, SCL PE5
++ */
++static struct i2c_gpio_platform_data ip7500media_i2c_data = {
++	.sda_pin		= GPIO_RE_4,
++	.scl_pin		= GPIO_RE_5,
++	.sda_is_open_drain	= 0,
++	.scl_is_open_drain	= 0,
++	.udelay			= 50,
++};
++
++static struct platform_device ip7500media_i2c_device = {
++	.name	= "i2c-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &ip7500media_i2c_data,
++	},
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7500media_devices[] __initdata = {
++	&ip7500media_i2c_device,
++	&ip7500media_lcd_device,
++	&ip7500media_backlight_device,
++};
++
++/*
++ * ip7500media_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip7500media_init(void)
++{
++	struct platform_device *audio_dev;
++
++	board_init();
++
++	ubi_gpio_init();
++
++#ifdef CONFIG_UIO_UBICOM32RING
++	ring_tio_init("decoder_ring");
++#endif
++
++	/*
++	 * Start up the video driver first
++	 */
++	vdc_tio_init();
++
++	/*
++	 * Register all of the devices we have on this board
++	 */
++	printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++	platform_add_devices(ip7500media_devices, ARRAY_SIZE(ip7500media_devices));
++
++	/*
++	 * Allocate the audio driver if we can
++	 */
++	audio_dev = audio_tio_alloc("snd-ubi32-cs4350", "audiotio-i2sout", 0);
++	if (audio_dev) {
++		ip7500media_i2c_board_info[0].platform_data = audio_dev;
++	}
++
++	/*
++	 * Register all of the devices which sit on the I2C bus
++	 */
++	printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++	i2c_register_board_info(0, ip7500media_i2c_board_info, ARRAY_SIZE(ip7500media_i2c_board_info));
++
++	/*
++	 * We have to initialize the SDIO after the I2C IOB gets setup.  SDIO is initialized in 
++	 * ip7500media_u17_setup
++	 */
++
++	return 0;
++}
++
++arch_initcall(ip7500media_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7500module.c
+@@ -0,0 +1,60 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7500module.c
++ *   Support for IP7500 CPU module board.
++ *
++ * This file supports the IP7500 CPU module board:
++ *	8007-0510  Rev 1.0
++ *	8007-0510A Rev 1.0 (with ethernet)
++ *
++ * DIP Switch SW2 configuration: (*) default
++ *	POS 1: on(*) = PCI enabled, off = PCI disabled
++ *	POS 2: on(*) = TTYX => PA6, off = TTYX => PF12
++ *	POS 3: on(*) = TTYY => PA7, off = TTYY => PF15
++ *	POS 4: unused
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ring_tio.h>
++#include <asm/vdc_tio.h>
++
++/*
++ * ip7500module_init
++ *	Called to add the devices which we have on this board
++ */
++static int __init ip7500module_init(void)
++{
++	board_init();
++
++	ubi_gpio_init();
++
++	return 0;
++}
++
++arch_initcall(ip7500module_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/Kconfig
+@@ -0,0 +1,132 @@
++config IP7145DPF
++	bool "IP7145DPF"
++	select UBICOM32_V4
++	select UBICOM_INPUT
++	select UBICOM_INPUT_I2C
++	select RTC_CLASS
++	select RTC_DRV_S35390A
++	select I2C
++	select I2C_GPIO
++	select GPIO_PCA953X
++	select FB
++	select FB_UBICOM32
++	select BACKLIGHT_LCD_SUPPORT
++	select LCD_CLASS_DEVICE
++	select LCD_UBICOM32
++	select BACKLIGHT_CLASS_DEVICE
++	select BACKLIGHT_UBICOM32
++	select SND_UBI32
++	select MMC_UBICOM32
++	select MMC
++	select MMC_BLOCK
++	select BRD_64MB
++	help
++		IP7145 Digital Picture Frame reference design, supports:
++			8007-0410 v1.0
++
++config IP7160RGW
++	bool "IP7160RGW"
++	select UBICOM32_V4
++	select UBICOM_INPUT
++	select NEW_LEDS
++	select LEDS_CLASS
++	select LEDS_GPIO
++	select BRD_64MB
++	select SPI
++	select SPI_UBICOM32_GPIO
++	select VLAN_8021Q
++	select UBICOM_SWITCH
++	select UBICOM_SWITCH_BCM539X
++	help
++		Ubicom IP7160 RGW Eval, supports:
++			8007-0110 v1.0
++			8007-0111 v1.1
++			8007-0112 v1.2
++
++config IP7160BRINGUP
++	bool "IP7160BRINGUP"
++	select UBICOM32_V4
++	select NEW_LEDS
++	select LEDS_CLASS
++	select LEDS_GPIO
++	select BRD_64MB
++	help
++		Ubicom IP7160 Bringup, supports:
++			8007-0010 v1.0
++
++config IP7160DPF
++	bool "IP7160DPF"
++	select UBICOM32_V4
++	select I2C
++	select I2C_GPIO
++	select FB
++	select FB_UBICOM32
++	select BACKLIGHT_LCD_SUPPORT
++	select BACKLIGHT_CLASS_DEVICE
++	select SND_UBI32
++	select SND_UBI32_AUDIO_CS4350
++	select UBICOM_HID
++	select BRD_64MB
++	help
++		IP7160 Digital Picture Frame board, supports:
++			8007-0211 Rev 1.1
++
++config IP7500MODULE
++	bool "IP7500MODULE"
++	select UBICOM32_V4
++	select BRD_128MB
++	help
++		Ubicom IP7500 CPU Module board, supports:
++			8007-0510  v1.0
++			8007-0510A v1.0
++
++		Please see ip7500module.c for more details.
++
++config IP7500AV
++	bool "IP7500AV"
++	select UBICOM32_V4
++	select BRD_128MB
++	select I2C
++	select I2C_GPIO
++	select SND_UBI32
++	select SND_UBI32_AUDIO_CS4384
++	select FB
++	select FB_UBICOM32
++	help
++		Ubicom IP7500 Audio Video board, supports:
++			8007-0810  v1.0
++
++		With Ubicom IP7500 CPU Module board:
++			8007-0510  v1.0 -or-
++			8007-0510A v1.0
++
++		Please see ip7500av.c for more details.
++
++config IP7500MEDIA
++	bool "IP7500MEDIA"
++	select UBICOM32_V4
++	select UBICOM_INPUT_I2C
++	select RTC_CLASS
++	select RTC_DRV_S35390A
++	select I2C
++	select I2C_GPIO
++	select GPIO_PCA953X
++	select FB
++	select FB_UBICOM32
++	select BACKLIGHT_LCD_SUPPORT
++	select LCD_CLASS_DEVICE
++	select LCD_UBICOM32
++	select BACKLIGHT_CLASS_DEVICE
++	select BACKLIGHT_UBICOM32
++	select SND_UBI32
++	select SND_UBI32_AUDIO_CS4350
++	select MMC_UBICOM32
++	select MMC
++	select MMC_BLOCK
++	select BRD_128MB
++	help
++		IP7500 Media Board w/ IP7500 CPU Module board, supports:
++			8007-0610 v1.0 w/ 8007-0510 v1.0
++
++		Please see ip7500media.c for more details.
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/Makefile
+@@ -0,0 +1,35 @@
++#
++# arch/ubicom32/mach-ip7k/Makefile
++#	Makefile for ip7k based boards.
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not, 
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++
++obj-$(CONFIG_IP7145DPF)		+= board-ip7145dpf.o
++obj-$(CONFIG_IP7160RGW)		+= board-ip7160rgw.o
++obj-$(CONFIG_IP7160BRINGUP)	+= board-ip7160bringup.o
++obj-$(CONFIG_IP7160DPF)		+= board-ip7160dpf.o
++obj-$(CONFIG_IP7500MODULE)	+= board-ip7500module.o
++obj-$(CONFIG_IP7500MEDIA)	+= board-ip7500media.o
++obj-$(CONFIG_IP7500AV)		+= board-ip7500av.o
+--- /dev/null
++++ b/arch/ubicom32/Makefile
+@@ -0,0 +1,103 @@
++#
++# arch/ubicom32/Makefile
++#	<TODO: Replace with short file description>
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not, 
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++
++KBUILD_DEFCONFIG := 
++
++# setup the machine name and machine dependent settings
++machine-$(CONFIG_UBICOM32_V3)	:= ip5k
++machine-$(CONFIG_UBICOM32_V4)	:= ip7k
++MACHINE := $(machine-y)
++export MACHINE
++
++model-$(CONFIG_RAMKERNEL)	:= ram
++model-$(CONFIG_ROMKERNEL)	:= rom
++MODEL := $(model-y)
++export MODEL
++
++CPUCLASS := $(cpuclass-y)
++
++export CPUCLASS
++
++#
++# We want the core kernel built using the fastcall ABI but modules need
++# to be built using the slower calling convention because they could be
++# loaded out of range for fast calls.
++#
++CFLAGS_KERNEL    += -mfastcall
++CFLAGS_MODULE    += -mno-fastcall
++
++#
++# Some CFLAG additions based on specific CPU type.
++#
++cflags-$(CONFIG_UBICOM32_V3)		:= -march=ubicom32v3 -mno-fdpic -DIP5000
++cflags-$(CONFIG_UBICOM32_V4)		:= -march=ubicom32v4 -mno-fdpic -DIP7000
++
++ldflags-$(CONFIG_LINKER_RELAXATION)	:= --relax
++LDFLAGS_vmlinux := $(ldflags-y)
++
++GCCLIBDIR := $(dir $(shell $(CC) $(cflags-y) -print-libgcc-file-name))
++
++KBUILD_CFLAGS += $(cflags-y) -ffunction-sections
++KBUILD_AFLAGS += $(cflags-y)
++
++KBUILD_CFLAGS += -D__linux__ -Dlinux
++KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
++
++# include any machine specific directory
++ifneq ($(machine-y),)
++core-y += arch/$(ARCH)/mach-$(MACHINE)/
++endif
++
++head-y := arch/$(ARCH)/kernel/head.o
++
++core-y	+= arch/$(ARCH)/kernel/ \
++	   arch/$(ARCH)/mm/ \
++	   arch/$(ARCH)/crypto/ \
++	   arch/$(ARCH)/mach-common/
++
++drivers-$(CONFIG_OPROFILE)	+= arch/ubicom32/oprofile/
++
++libs-y	+= arch/$(ARCH)/lib/
++
++archclean:
++
++# make sure developer has selected a valid board
++ifeq ($(CONFIG_NOBOARD),y)
++# $(error have to select a valid board file $(CONFIG_NOBOARD), please run kernel config again)
++_all: config_board_error
++endif
++
++config_board_error:
++	@echo "*************************************************"
++	@echo "You have not selected a proper board."
++	@echo "Please run menuconfig (or config) against your"
++	@echo "kernel and choose your board under Processor"
++	@echo "options"
++	@echo "*************************************************"
++	@exit 1
++
+--- /dev/null
++++ b/arch/ubicom32/mm/fault.c
+@@ -0,0 +1,81 @@
++/*
++ * arch/ubicom32/mm/fault.c
++ *   Ubicom32 architecture page fault implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
++ *  Copyright (C) 2000  Lineo, Inc.  (www.lineo.com) 
++ *
++ *  Based on:
++ *
++ *  linux/arch/m68k/mm/fault.c
++ *
++ *  Copyright (C) 1995  Hamish Macdonald
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/mman.h>
++#include <linux/mm.h>
++#include <linux/kernel.h>
++#include <linux/ptrace.h>
++
++#include <asm/system.h>
++#include <asm/pgtable.h>
++
++extern void die_if_kernel(char *, struct pt_regs *, long);
++
++/*
++ * This routine handles page faults.  It determines the problem, and
++ * then passes it off to one of the appropriate routines.
++ *
++ * error_code:
++ *	bit 0 == 0 means no page found, 1 means protection fault
++ *	bit 1 == 0 means read, 1 means write
++ *
++ * If this routine detects a bad access, it returns 1, otherwise it
++ * returns 0.
++ */
++asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
++			      unsigned long error_code)
++{
++#ifdef DEBUG
++	printk (KERN_DEBUG "regs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld\n",
++		regs->sr, regs->pc, address, error_code);
++#endif
++
++	/*
++	 * Oops. The kernel tried to access some bad page. We'll have to
++	 * terminate things with extreme prejudice.
++	 */
++	if ((unsigned long) address < PAGE_SIZE) {
++		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
++	} else
++		printk(KERN_ALERT "Unable to handle kernel access");
++	printk(KERN_ALERT " at virtual address %08lx\n",address);
++	die_if_kernel("Oops", regs, error_code);
++	do_exit(SIGKILL);
++
++	return 1;
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mm/init.c
+@@ -0,0 +1,261 @@
++/*
++ * arch/ubicom32/mm/init.c
++ *   Ubicom32 architecture virtual memory initialization.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
++ *                      Kenneth Albanowski <kjahds@kjahds.com>,
++ *  Copyright (C) 2000  Lineo, Inc.  (www.lineo.com)
++ *
++ *  Based on:
++ *
++ *  linux/arch/m68k/mm/init.c
++ *
++ *  Copyright (C) 1995  Hamish Macdonald
++ *
++ *  JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com)
++ *  DEC/2000 -- linux 2.4 support <davidm@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/signal.h>
++#include <linux/sched.h>
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/types.h>
++#include <linux/ptrace.h>
++#include <linux/mman.h>
++#include <linux/mm.h>
++#include <linux/swap.h>
++#include <linux/init.h>
++#include <linux/highmem.h>
++#include <linux/pagemap.h>
++#include <linux/bootmem.h>
++#include <linux/slab.h>
++
++#include <asm/setup.h>
++#include <asm/segment.h>
++#include <asm/page.h>
++#include <asm/pgtable.h>
++#include <asm/system.h>
++#include <asm/machdep.h>
++#include <asm/ocm-alloc.h>
++
++#undef DEBUG
++
++extern void die_if_kernel(char *,struct pt_regs *,long);
++extern void free_initmem(void);
++
++/*
++ * BAD_PAGE is the page that is used for page faults when linux
++ * is out-of-memory. Older versions of linux just did a
++ * do_exit(), but using this instead means there is less risk
++ * for a process dying in kernel mode, possibly leaving a inode
++ * unused etc..
++ *
++ * BAD_PAGETABLE is the accompanying page-table: it is initialized
++ * to point to BAD_PAGE entries.
++ *
++ * ZERO_PAGE is a special page that is used for zero-initialized
++ * data and COW.
++ */
++static unsigned long empty_bad_page_table;
++
++static unsigned long empty_bad_page;
++
++unsigned long empty_zero_page;
++
++void show_mem(void)
++{
++    unsigned long i;
++    int free = 0, total = 0, reserved = 0, shared = 0;
++    int cached = 0;
++
++    printk(KERN_INFO "\nMem-info:\n");
++    show_free_areas();
++    i = max_mapnr;
++    while (i-- > 0) {
++	total++;
++	if (PageReserved(mem_map+i))
++	    reserved++;
++	else if (PageSwapCache(mem_map+i))
++	    cached++;
++	else if (!page_count(mem_map+i))
++	    free++;
++	else
++	    shared += page_count(mem_map+i) - 1;
++    }
++    printk(KERN_INFO "%d pages of RAM\n",total);
++    printk(KERN_INFO "%d free pages\n",free);
++    printk(KERN_INFO "%d reserved pages\n",reserved);
++    printk(KERN_INFO "%d pages shared\n",shared);
++    printk(KERN_INFO "%d pages swap cached\n",cached);
++}
++
++extern unsigned long memory_start;
++extern unsigned long memory_end;
++extern char __ocm_free_begin;
++extern char __ocm_free_end;
++
++/*
++ * paging_init() continues the virtual memory environment setup which
++ * was begun by the code in arch/head.S.
++ * The parameters are pointers to where to stick the starting and ending
++ * addresses of available kernel virtual memory.
++ */
++void __init paging_init(void)
++{
++	/*
++	 * Make sure start_mem is page aligned, otherwise bootmem and
++	 * page_alloc get different views of the world.
++	 */
++#ifdef DEBUG
++	unsigned long start_mem = PAGE_ALIGN(memory_start);
++#endif
++	unsigned long end_mem   = memory_end & PAGE_MASK;
++
++#ifdef DEBUG
++	printk (KERN_DEBUG "start_mem is %#lx\nvirtual_end is %#lx\n",
++		start_mem, end_mem);
++#endif
++
++	/*
++	 * Initialize the bad page table and bad page to point
++	 * to a couple of allocated pages.
++	 */
++	empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
++	empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
++	empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
++	memset((void *)empty_zero_page, 0, PAGE_SIZE);
++
++	/*
++	 * TODO: enable setting up for user memory management interface.
++	 */
++
++#ifdef DEBUG
++	printk (KERN_DEBUG "before free_area_init\n");
++
++	printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n",
++		start_mem, end_mem);
++#endif
++
++	{
++		unsigned long zones_size[MAX_NR_ZONES] = {0, };
++#ifdef CONFIG_ZONE_DMA
++		zones_size[ZONE_DMA] = OCMSIZE >> PAGE_SHIFT;
++#endif
++		zones_size[ZONE_NORMAL] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
++#ifdef CONFIG_HIGHMEM
++		zones_size[ZONE_HIGHMEM] = 0;
++#endif
++		free_area_init(zones_size);
++	}
++}
++
++void __init mem_init(void)
++{
++	int codek = 0, datak = 0, initk = 0;
++	unsigned long tmp;
++	extern char _etext, _stext, _sdata, _ebss, __init_begin, __init_end;
++	unsigned long len = CONFIG_RAMSIZE + OCMSIZE;
++	unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */
++	unsigned long end_mem   = memory_end; /* DAVIDM - this must not include kernel stack at top */
++
++#ifdef DEBUG
++	printk(KERN_DEBUG "Mem_init: start=%lx, end=%lx\n", start_mem, end_mem);
++#endif
++
++	end_mem &= PAGE_MASK;
++	high_memory = (void *) end_mem;
++
++	start_mem = PAGE_ALIGN(start_mem);
++	max_mapnr = num_physpages = (((unsigned long) high_memory) - PAGE_OFFSET) >> PAGE_SHIFT;
++
++	/* this will put all memory onto the freelists */
++#ifdef CONFIG_ZONE_DMA
++	{
++		unsigned long ocm_free_begin = (unsigned long)&__ocm_free_begin;
++		unsigned long ocm_free_end = (unsigned long)&__ocm_free_end;
++		unsigned long zone_dma_begin = (ocm_free_begin + PAGE_SIZE - 1) & PAGE_MASK;
++		unsigned long zone_dma_end = ocm_free_end & PAGE_MASK;
++		if (zone_dma_end > zone_dma_begin)
++			free_bootmem(zone_dma_begin, zone_dma_end-zone_dma_begin);
++	}
++#endif
++	totalram_pages = free_all_bootmem();
++
++	codek = (&_etext - &_stext) >> 10;
++	datak = (&_ebss - &_sdata) >> 10;
++	initk = (&__init_begin - &__init_end) >> 10;
++
++	tmp = nr_free_pages() << PAGE_SHIFT;
++	printk(KERN_INFO "Memory available: %luk/%luk RAM, (%dk kernel code, %dk data)\n",
++	       tmp >> 10,
++	       len >> 10,
++	       codek,
++	       datak
++	       );
++
++}
++
++#ifdef CONFIG_BLK_DEV_INITRD
++void free_initrd_mem(unsigned long start, unsigned long end)
++{
++	int pages = 0;
++	for (; start < end; start += PAGE_SIZE) {
++		ClearPageReserved(virt_to_page(start));
++		init_page_count(virt_to_page(start));
++		free_page(start);
++		totalram_pages++;
++		pages++;
++	}
++	printk (KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages);
++}
++#endif
++
++void
++free_initmem()
++{
++#ifdef CONFIG_RAMKERNEL
++	unsigned long addr;
++	extern char __init_begin, __init_end;
++	/*
++	 * The following code should be cool even if these sections
++	 * are not page aligned.
++	 */
++	addr = PAGE_ALIGN((unsigned long)(&__init_begin));
++	/* next to check that the page we free is not a partial page */
++	for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) {
++		ClearPageReserved(virt_to_page(addr));
++		init_page_count(virt_to_page(addr));
++		free_page(addr);
++		totalram_pages++;
++	}
++	printk(KERN_NOTICE "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n",
++			(addr - PAGE_ALIGN((long) &__init_begin)) >> 10,
++			(int)(PAGE_ALIGN((unsigned long)(&__init_begin))),
++			(int)(addr - PAGE_SIZE));
++#endif
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mm/kmap.c
+@@ -0,0 +1,79 @@
++/*
++ * arch/ubicom32/mm/kmap.c
++ *   Ubicom32 architecture non-mmu ioremap and friends implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2000 Lineo, <davidm@snapgear.com>
++ * Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/mm.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/types.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++
++#include <asm/setup.h>
++#include <asm/segment.h>
++#include <asm/page.h>
++#include <asm/pgalloc.h>
++#include <asm/io.h>
++#include <asm/system.h>
++
++#undef DEBUG
++
++/*
++ * Map some physical address range into the kernel address space.
++ */
++void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
++{
++	return (void *)physaddr;
++}
++
++/*
++ * Unmap a ioremap()ed region again.
++ */
++void iounmap(void *addr)
++{
++}
++
++/*
++ * __iounmap unmaps nearly everything, so be careful
++ * it doesn't free currently pointer/page tables anymore but it
++ * wans't used anyway and might be added later.
++ */
++void __iounmap(void *addr, unsigned long size)
++{
++}
++
++/*
++ * Set new cache mode for some kernel address space.
++ * The caller must push data for that range itself, if such data may already
++ * be in the cache.
++ */
++void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
++{
++}
+--- /dev/null
++++ b/arch/ubicom32/mm/Makefile
+@@ -0,0 +1,32 @@
++#
++# arch/ubicom32/mm/Makefile
++#	<TODO: Replace with short file description>
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not, 
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++#
++# Makefile for the linux m68knommu specific parts of the memory manager.
++#
++
++obj-y += init.o fault.o memory.o kmap.o ocm-alloc.o
+--- /dev/null
++++ b/arch/ubicom32/mm/memory.c
+@@ -0,0 +1,59 @@
++/*
++ * arch/ubicom32/mm/memory.c
++ *   Ubicom32 architecture kernel_map() implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *  Copyright (C) 1998  Kenneth Albanowski <kjahds@kjahds.com>,
++ *  Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
++ *
++ *  Based on:
++ *
++ *  linux/arch/m68k/mm/memory.c
++ *
++ *  Copyright (C) 1995  Hamish Macdonald
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/mm.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/types.h>
++#include <linux/slab.h>
++
++#include <asm/segment.h>
++#include <asm/page.h>
++#include <asm/pgtable.h>
++#include <asm/system.h>
++
++/*
++ * Map some physical address range into the kernel address space.
++ * The code is copied and adapted from map_chunk().
++ */
++
++unsigned long kernel_map(unsigned long paddr, unsigned long size,
++			 int nocacheflag, unsigned long *memavailp )
++{
++	return paddr;
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mm/ocm-alloc.c
+@@ -0,0 +1,439 @@
++/*
++ * arch/ubicom32/mm/ocm-alloc.c
++ *	OCM allocator for Uibcom32 On-Chip memory
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *  Copyright 2004-2008 Analog Devices Inc.
++ *
++ *  Based on:
++ *
++ *  arch/blackfin/mm/sram-alloc.c
++ *
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/types.h>
++#include <linux/miscdevice.h>
++#include <linux/ioport.h>
++#include <linux/fcntl.h>
++#include <linux/init.h>
++#include <linux/poll.h>
++#include <linux/proc_fs.h>
++#include <linux/mutex.h>
++#include <linux/rtc.h>
++#include <asm/ocm-alloc.h>
++
++#if 0
++#define DEBUGP printk
++#else
++#define DEBUGP(fmt, a...)
++#endif
++/*
++ * the data structure for OCM heap pieces
++ */
++struct ocm_piece {
++	void *paddr;
++	int size;
++	pid_t pid;
++	struct ocm_piece *next;
++};
++
++/*
++ * struct ocm_heap
++ */
++struct ocm_heap {
++	struct ocm_piece free_head;
++	struct ocm_piece used_head;
++	struct mutex lock;
++};
++
++static struct ocm_heap ocm_inst_heap;
++
++/*
++ * OCM area for storing code
++ */
++extern asmlinkage void *__ocm_inst_heap_begin;
++extern asmlinkage void *__ocm_inst_heap_end;
++#define OCM_INST_HEAP_BEGIN ((unsigned int)&__ocm_inst_heap_begin)
++#define OCM_INST_HEAP_END ((unsigned int)&__ocm_inst_heap_end)
++#define OCM_INST_HEAP_LENGTH (OCM_INST_HEAP_END - OCM_INST_HEAP_BEGIN)
++
++static struct kmem_cache *ocm_piece_cache;
++
++/*
++ * _ocm_heap_init()
++ */
++static int __init _ocm_heap_init(struct ocm_heap *ocmh,
++				  unsigned int start,
++				  unsigned int size)
++{
++	ocmh->free_head.next = kmem_cache_alloc(ocm_piece_cache, GFP_KERNEL);
++
++	if (!ocmh->free_head.next)
++		return -1;
++
++	ocmh->free_head.next->paddr = (void *)start;
++	ocmh->free_head.next->size = size;
++	ocmh->free_head.next->pid = 0;
++	ocmh->free_head.next->next = 0;
++
++	ocmh->used_head.next = NULL;
++
++	/* mutex initialize */
++	mutex_init(&ocmh->lock);
++
++	return 0;
++}
++
++/*
++ * _ocm_alloc_init()
++ *
++ * starts the ocm heap(s)
++ */
++static int __init _ocm_alloc_init(void)
++{
++	if (OCM_INST_HEAP_LENGTH) {
++		ocm_piece_cache = kmem_cache_create("ocm_piece_cache",
++						    sizeof(struct ocm_piece),
++						    0, SLAB_PANIC, NULL);
++
++		if (_ocm_heap_init(&ocm_inst_heap,
++				   OCM_INST_HEAP_BEGIN,
++				   OCM_INST_HEAP_LENGTH) == 0)
++			printk(KERN_INFO "OCM Instruction Heap %d KB\n",
++			       OCM_INST_HEAP_LENGTH >> 10);
++		else
++			printk(KERN_INFO "Failed to initialize OCM "
++			       "Instruction Heap\n");
++
++	} else
++		printk(KERN_INFO "No space available for OCM "
++		       "Instruction Heap\n");
++
++	return 0;
++}
++pure_initcall(_ocm_alloc_init);
++
++/*
++ * _ocm_alloc()
++ *	generic alloc a block in the ocm heap, if successful
++ *	returns the pointer.
++ */
++static void *_ocm_alloc(size_t size, pid_t pid, struct ocm_heap *ocmheap)
++{
++	struct ocm_piece *pslot, *plast, *pavail;
++	struct ocm_piece *pfree_head = &ocmheap->free_head;
++	struct ocm_piece *pused_head = &ocmheap->used_head;
++
++	if (size <= 0 || !pfree_head || !pused_head)
++		return NULL;
++
++	/* Align the size */
++	size = (size + 3) & ~3;
++
++	pslot = pfree_head->next;
++	plast = pfree_head;
++
++	/*
++	 * search an available piece slot
++	 */
++	while (pslot != NULL && size > pslot->size) {
++		plast = pslot;
++		pslot = pslot->next;
++	}
++
++	if (!pslot)
++		return NULL;
++
++	if (pslot->size == size) {
++		/*
++		 * Unlink this block from the list
++		 */
++		plast->next = pslot->next;
++		pavail = pslot;
++	} else {
++		/*
++		 * Split this block in two.
++		 */
++		pavail = kmem_cache_alloc(ocm_piece_cache, GFP_KERNEL);
++
++		if (!pavail)
++			return NULL;
++
++		pavail->paddr = pslot->paddr;
++		pavail->size = size;
++		pslot->paddr += size;
++		pslot->size -= size;
++	}
++
++	pavail->pid = pid;
++
++	pslot = pused_head->next;
++	plast = pused_head;
++
++	/*
++	 * insert new piece into used piece list !!!
++	 */
++	while (pslot != NULL && pavail->paddr < pslot->paddr) {
++		plast = pslot;
++		pslot = pslot->next;
++	}
++
++	pavail->next = pslot;
++	plast->next = pavail;
++
++	DEBUGP("_ocm_alloc %d bytes at %p from in %p",
++	       size, pavail->paddr, ocmheap);
++
++	return pavail->paddr;
++}
++
++#if 0
++/* Allocate the largest available block.  */
++static void *_ocm_alloc_max(struct ocm_heap *ocmheap,
++			     unsigned long *psize)
++{
++	struct ocm_piece *pfree_head = &ocmheap->free_head;
++	struct ocm_piece *pslot, *pmax;
++
++	pmax = pslot = pfree_head->next;
++
++	/* search an available piece slot */
++	while (pslot != NULL) {
++		if (pslot->size > pmax->size)
++			pmax = pslot;
++		pslot = pslot->next;
++	}
++
++	if (!pmax)
++		return NULL;
++
++	*psize = pmax->size;
++
++	return _ocm_alloc(*psize, ocmheap);
++}
++#endif
++
++/*
++ * _ocm_free()
++ *	generic free a block in the ocm heap, if successful
++ */
++static int _ocm_free(const void *addr,
++		     struct ocm_heap *ocmheap)
++{
++	struct ocm_piece *pslot, *plast, *pavail;
++	struct ocm_piece *pfree_head = &ocmheap->free_head;
++	struct ocm_piece *pused_head = &ocmheap->used_head;
++
++	/* search the relevant memory slot */
++	pslot = pused_head->next;
++	plast = pused_head;
++
++	/* search an available piece slot */
++	while (pslot != NULL && pslot->paddr != addr) {
++		plast = pslot;
++		pslot = pslot->next;
++	}
++
++	if (!pslot) {
++		DEBUGP("_ocm_free %p  not found in %p", addr, ocmheap);
++		return -1;
++	}
++	DEBUGP("_ocm_free %p from in %p", addr, ocmheap);
++
++	plast->next = pslot->next;
++	pavail = pslot;
++	pavail->pid = 0;
++
++	/* insert free pieces back to the free list */
++	pslot = pfree_head->next;
++	plast = pfree_head;
++
++	while (pslot != NULL && addr > pslot->paddr) {
++		plast = pslot;
++		pslot = pslot->next;
++	}
++
++	if (plast != pfree_head &&
++	    plast->paddr + plast->size == pavail->paddr) {
++		plast->size += pavail->size;
++		kmem_cache_free(ocm_piece_cache, pavail);
++	} else {
++		pavail->next = plast->next;
++		plast->next = pavail;
++		plast = pavail;
++	}
++
++	if (pslot && plast->paddr + plast->size == pslot->paddr) {
++		plast->size += pslot->size;
++		plast->next = pslot->next;
++		kmem_cache_free(ocm_piece_cache, pslot);
++	}
++
++	return 0;
++}
++
++/*
++ * ocm_inst_alloc()
++ *
++ *	allocates a block of size in the ocm instrction heap, if
++ *	successful returns address allocated.
++ */
++void *ocm_inst_alloc(size_t size, pid_t pid)
++{
++	void *addr;
++
++	if (!OCM_INST_HEAP_LENGTH)
++		return NULL;
++
++
++	mutex_lock(&ocm_inst_heap.lock);
++
++	addr = _ocm_alloc(size, pid, &ocm_inst_heap);
++
++	mutex_unlock(&ocm_inst_heap.lock);
++
++	return addr;
++}
++EXPORT_SYMBOL(ocm_inst_alloc);
++
++/*
++ * ocm_inst_free()
++ *	free a block in the ocm instrction heap, returns 0 if successful.
++ */
++int ocm_inst_free(const void *addr)
++{
++	int ret;
++
++	if (!OCM_INST_HEAP_LENGTH)
++		return -1;
++
++	mutex_lock(&ocm_inst_heap.lock);
++
++	ret = _ocm_free(addr, &ocm_inst_heap);
++
++	mutex_unlock(&ocm_inst_heap.lock);
++
++	return ret;
++}
++EXPORT_SYMBOL(ocm_inst_free);
++
++/*
++ * ocm_free()
++ *	free a block in one of the ocm heaps, returns 0 if successful.
++ */
++int ocm_free(const void *addr)
++{
++	if (addr >= (void *)OCM_INST_HEAP_BEGIN
++		 && addr < (void *)(OCM_INST_HEAP_END))
++		return ocm_inst_free(addr);
++	else
++		return -1;
++}
++EXPORT_SYMBOL(ocm_free);
++
++
++#ifdef CONFIG_PROC_FS
++/* Need to keep line of output the same.  Currently, that is 46 bytes
++ * (including newline).
++ */
++static int _ocm_proc_read(char *buf, int *len, int count, const char *desc,
++			   struct ocm_heap *ocmheap)
++{
++	struct ocm_piece *pslot;
++	struct ocm_piece *pfree_head = &ocmheap->free_head;
++	struct ocm_piece *pused_head = &ocmheap->used_head;
++
++	/* The format is the following
++	 * --- OCM 123456789012345 Size   PID State     \n
++	 * 12345678-12345678 1234567890 12345 1234567890\n
++	 */
++	int l;
++	l = sprintf(&buf[*len], "--- OCM %-15s Size   PID State     \n",
++		    desc);
++
++	*len += l;
++	count -= l;
++
++	mutex_lock(&ocm_inst_heap.lock);
++
++	/*
++	 * search the relevant memory slot
++	 */
++	pslot = pused_head->next;
++
++	while (pslot != NULL && count > 46) {
++		l = sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n",
++			     pslot->paddr, pslot->paddr + pslot->size,
++			     pslot->size, pslot->pid, "ALLOCATED");
++
++		*len += l;
++		count -= l;
++		pslot = pslot->next;
++	}
++
++	pslot = pfree_head->next;
++
++	while (pslot != NULL && count > 46) {
++		l = sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n",
++			    pslot->paddr, pslot->paddr + pslot->size,
++			    pslot->size, pslot->pid, "FREE");
++
++		*len += l;
++		count -= l;
++		pslot = pslot->next;
++	}
++
++	mutex_unlock(&ocm_inst_heap.lock);
++
++	return 0;
++}
++static int ocm_proc_read(char *buf, char **start, off_t offset, int count,
++		int *eof, void *data)
++{
++	int len = 0;
++
++	if (_ocm_proc_read(buf, &len, count - len, "Inst Heap",
++			    &ocm_inst_heap))
++		goto not_done;
++	*eof = 1;
++ not_done:
++	return len;
++}
++
++static int __init sram_proc_init(void)
++{
++	struct proc_dir_entry *ptr;
++	ptr = create_proc_entry("ocm", S_IFREG | S_IRUGO, NULL);
++	if (!ptr) {
++		printk(KERN_WARNING "unable to create /proc/ocm\n");
++		return -1;
++	}
++	ptr->owner = THIS_MODULE;
++	ptr->read_proc = ocm_proc_read;
++	return 0;
++}
++late_initcall(sram_proc_init);
++#endif
+--- /dev/null
++++ b/arch/ubicom32/oprofile/ipProf.h
+@@ -0,0 +1,39 @@
++#ifndef __IP_PROF_H__
++#define __IP_PROF_H__
++
++/* This number MUST match what is used in the ultra configuration! */
++#define IPPROFILETIO_MAX_SAMPLES	600
++
++/* Move to .h file used in both; avoid special types  */
++struct profile_sample {
++	unsigned int	pc;		/* PC value */
++	unsigned int	parent;		/* a5 contents, to find the caller */
++	unsigned char	cond_codes;	/* for branch prediction */
++	unsigned char	thread;		/* I-blocked, D-blocked,
++					   4-bit thread number */
++	unsigned short	active;		/* which threads are active -
++					   for accurate counting */
++	unsigned short	blocked;	/* which threads are blocked due to
++					   I or D cache misses */
++	unsigned int	latency;	/* CPU clocks since the last message
++					   dispatch in this thread
++					   (thread 0 only for now) */
++};
++
++
++struct profilenode {
++	struct devtree_node dn;
++	volatile unsigned char enabled;	/* Is the tio enabled to
++					   take samples? */
++	volatile unsigned char busy;	/* set when the samples
++					   are being read */
++	volatile unsigned int mask;	/* Threads that change the MT_EN flag */
++	volatile unsigned short rate;	/* What is the sampling rate? */
++	volatile unsigned short head;	/* sample taker puts samples here */
++	volatile unsigned short tail;	/* packet filler takes samples here */
++	volatile unsigned short count;	/* number of valid samples */
++	volatile unsigned short total;	/* Total samples */
++	struct profile_sample samples[IPPROFILETIO_MAX_SAMPLES];
++};
++
++#endif
+--- /dev/null
++++ b/arch/ubicom32/oprofile/Makefile
+@@ -0,0 +1,37 @@
++#
++# arch/ubicom32/Makefile
++#       Makefile for Oprofile support on Ubicom32
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++
++obj-$(CONFIG_OPROFILE) += oprofile.o
++
++DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
++		oprof.o cpu_buffer.o buffer_sync.o \
++		event_buffer.o oprofile_files.o \
++		oprofilefs.o oprofile_stats.o \
++		timer_int.o )
++
++oprofile-y	:= $(DRIVER_OBJS) profile.o
+--- /dev/null
++++ b/arch/ubicom32/oprofile/profile.c
+@@ -0,0 +1,221 @@
++/*
++ * arch/ubicom32/oprofile/profile.c
++ *	Oprofile support for arch Ubicom32
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option)
++ * any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it will
++ * be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
++ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, see
++ * <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++/**
++ * @file profile.c
++ *
++ * @remark Copyright 2002 OProfile authors
++ * @remark Read the file COPYING
++ *
++ * @author Hunyue Yau <hy@hy-research.com>
++ */
++
++#include <linux/oprofile.h>
++#include <linux/init.h>
++#include <linux/errno.h>
++#include <linux/interrupt.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++
++#include <asm/devtree.h>
++#include <asm/thread.h>
++
++/* For identifying userland vs kernel address */
++#include <asm/stacktrace.h>
++#include "ipProf.h"
++
++/* For communications with the backend */
++static struct profilenode *profile_node;
++
++/* Bitmask containing all Linux threads - as seen by the ROSR reg */
++static unsigned long th_all_mask;
++
++/* Lookup table to translate a hardware thread into a CPU identifier
++ * Table is indexed by the ROSR value which is assumed to be
++ * relatively small (0...15).
++ */
++unsigned int cpu_map[THREAD_ARCHITECTURAL_MAX];
++
++static struct pt_regs regs;
++
++/*
++ * For each sample returned, checked to see if they are relevant to
++ * us. This is necessary as the ubicom32 architecture has other software
++ * running outside of Linux. Only then, put the sample into the relevant
++ * cpu bins.
++ *
++ * To minimize overhead, a global mask with all possible threads of in
++ * interest to us is used as a first check. Then a second mask identifying
++ * the thread is used to obtain an identifier for that "CPU".
++ */
++
++/*
++ * ubicom32_build_cpu_th_mask()
++ *
++ * Build a lookup table for translation between hardware thread
++ * "ROSR" values and Linux CPU ids
++ *
++ * *** This gets executed on all CPUs at once! ***
++ */
++static void ubicom32_build_cpu_th_mask(void *mask)
++{
++	thread_t self = thread_get_self();
++	unsigned long *th_m = mask;
++
++	BUG_ON(self <= 0 || self >= THREAD_ARCHITECTURAL_MAX);
++	cpu_map[self] = smp_processor_id();
++
++	set_bit(self, th_m);
++}
++
++/*
++ * profile_interrupt()
++ *
++ * Process samples returned from the profiler backend. The backend
++ * may return samples that are irrelevant to us or may even return
++ * multiple samples for the same CPU. Note that the sames may be
++ * for ANY cpu. At this time, this is unique and to support this requires
++ * Oprofile to expose an interface to accept the CPU that the same came
++ * frome.
++ */
++static irqreturn_t profile_interrupt(int irq, void *arg)
++{
++	int i, buf_entry;
++	int is_kernel;
++	unsigned int bit_th;
++	unsigned int th;
++
++	if (!(profile_node->enabled) || profile_node->count < 0) {
++		printk(KERN_WARNING
++			"Unexpected interrupt, no samples or not enabled!\n");
++		return IRQ_HANDLED;
++	}
++
++	profile_node->busy = 1;		/* Keep backend out */
++
++	for (i = 0; i < profile_node->count; i++) {
++		buf_entry = profile_node->tail;
++		profile_node->tail++;
++		profile_node->tail %= IPPROFILETIO_MAX_SAMPLES;
++
++		/* Note - the "thread" ID is only the lower 4 bits */
++		th = (0x0f & profile_node->samples[buf_entry].thread);
++		bit_th = (1 << th);
++
++		if ((bit_th & th_all_mask) == 0)
++			continue;
++
++		regs.pc = profile_node->samples[buf_entry].pc;
++
++		is_kernel = ubicom32_is_kernel(regs.pc);
++
++		oprofile_add_ext_sample_cpu(regs.pc, &regs, 0, is_kernel,
++					    cpu_map[th]);
++	}
++	profile_node->count = 0;
++	profile_node->busy = 0;
++
++	return IRQ_HANDLED;
++}
++
++/*
++ * profile_start()
++ *
++ * Notification from oprofile to start the profiler
++ */
++static int profile_start(void)
++{
++	if (!profile_node)
++		return -1;
++
++	profile_node->enabled = 1;
++
++	return 0;
++}
++
++/*
++ * profile_stop()
++ *
++ * Notification from oprofile to stop the profiler
++ */
++static void profile_stop(void)
++{
++	if (profile_node)
++		profile_node->enabled = 0;
++}
++
++/*
++ * oprofile_arch_init()
++ *
++ * Attach to Oprofile after qualify the availability of the backend
++ * profiler support.
++ */
++int __init oprofile_arch_init(struct oprofile_operations *ops)
++{
++	int r = -ENODEV;
++
++	profile_node = (struct profilenode *)devtree_find_node("profiler");
++
++	if (profile_node == NULL) {
++		printk(KERN_WARNING "Cannot find profiler node\n");
++		return r;
++	}
++
++	r = request_irq(profile_node->dn.recvirq, profile_interrupt,
++			IRQF_DISABLED, "profiler", NULL);
++
++	if (r < 0) {
++		profile_node = NULL;
++		printk(KERN_WARNING "Cannot get profiler IRQ\n");
++		return r;
++	}
++
++	ops->start = profile_start;
++	ops->stop = profile_stop;
++	ops->cpu_type = "timer";
++
++	memset(cpu_map, 0, sizeof(cpu_map));
++
++	on_each_cpu(ubicom32_build_cpu_th_mask, &th_all_mask, 1);
++
++	memset(&regs, 0, sizeof(regs));
++
++	return r;
++}
++
++/*
++ * oprofile_arch_exit()
++ *
++ * External call to take outselves out.
++ * Make sure backend is not running.
++ */
++void oprofile_arch_exit(void)
++{
++	BUG_ON(profile_node->enabled);
++}
+--- a/drivers/char/hw_random/Kconfig
++++ b/drivers/char/hw_random/Kconfig
+@@ -134,3 +134,16 @@ config HW_RANDOM_VIRTIO
+ 
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called virtio-rng.  If unsure, say N.
++
++config HW_RANDOM_UBICOM32
++	tristate "Ubicom32 HW Random Number Generator support"
++	depends on HW_RANDOM && UBICOM32
++	default HW_RANDOM
++	---help---
++	  This driver provides kernel-side support for the Random Number
++	  Generator hardware found on Ubicom32 processors.
++
++	  To compile this driver as a module, choose M here: the
++	  module will be called pasemi-rng.
++
++	  If unsure, say Y.
+--- a/drivers/char/hw_random/Makefile
++++ b/drivers/char/hw_random/Makefile
+@@ -14,3 +14,4 @@ obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx
+ obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o
+ obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o
+ obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o
++obj-$(CONFIG_HW_RANDOM_UBICOM32) += ubicom32-rng.o
+--- /dev/null
++++ b/drivers/char/hw_random/ubicom32-rng.c
+@@ -0,0 +1,105 @@
++/*
++ * drivers/net/ubi32-eth.c
++ *   Ubicom32 hardware random number generator driver.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/hw_random.h>
++#include <linux/delay.h>
++#include <asm/io.h>
++#include <asm/ip5000.h>
++
++#define MODULE_NAME "ubicom32_rng"
++
++static int ubicom32_rng_data_present(struct hwrng *rng, int wait)
++{
++	int data, i;
++
++	for (i = 0; i < 20; i++) {
++		data = *(int *)(TIMER_BASE + TIMER_TRN);
++		if (data || !wait)
++			break;
++		udelay(10);
++	}
++	return data;
++}
++
++static int ubicom32_rng_data_read(struct hwrng *rng, u32 *data)
++{
++	*data = *(int *)(TIMER_BASE + TIMER_TRN);
++	return 4;
++}
++
++static int ubicom32_rng_init(struct hwrng *rng)
++{
++	printk(KERN_INFO "ubicom32 rng init\n");
++	*(int *)(TIMER_BASE + TIMER_TRN_CFG) = TIMER_TRN_CFG_ENABLE_OSC;
++	return 0;
++}
++
++static void ubicom32_rng_cleanup(struct hwrng *rng)
++{
++	printk(KERN_INFO "ubicom32 rng cleanup\n");
++	*(int *)(TIMER_BASE + TIMER_TRN_CFG) = 0;
++}
++
++static struct hwrng ubicom32_rng = {
++	.name		= MODULE_NAME,
++	.init		= ubicom32_rng_init,
++	.cleanup	= ubicom32_rng_cleanup,
++	.data_present	= ubicom32_rng_data_present,
++	.data_read	= ubicom32_rng_data_read,
++	.priv		= 0,
++};
++
++static int __init mod_init(void)
++{
++	int err;
++
++	printk(KERN_INFO "ubicom32 rng started\n");
++	err = hwrng_register(&ubicom32_rng);
++	if (err) {
++		printk(KERN_ERR "ubicom32 rng register failed (%d)\n",
++			err);
++	}
++
++	return err;
++}
++
++static void __exit mod_exit(void)
++{
++	printk(KERN_INFO "ubicom32 rng stopped\n");
++	hwrng_unregister(&ubicom32_rng);
++}
++
++module_init(mod_init);
++module_exit(mod_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Ubicom, Inc.");
++MODULE_DESCRIPTION("H/W rng driver for ubicom32 processor");
++MODULE_VERSION("1:1.0.a");
+--- a/drivers/crypto/Kconfig
++++ b/drivers/crypto/Kconfig
+@@ -61,6 +61,40 @@ config CRYPTO_DEV_GEODE
+ 	  To compile this driver as a module, choose M here: the module
+ 	  will be called geode-aes.
+ 
++config CRYPTO_UBICOM32
++        bool "Ubicom32 Security Module"
++        depends on UBICOM32
++        help
++          This is the ubicom32 hardware acceleration common code.
++
++config CRYPTO_AES_UBICOM32
++        tristate "Ubicom32 AES implementation"
++        depends on CRYPTO_UBICOM32
++        select CRYPTO_ALGAPI
++        help
++          This is the ubicom32 hardware AES implementation.
++
++config CRYPTO_DES_UBICOM32
++        tristate "Ubicom32 DES implementation"
++        depends on CRYPTO_UBICOM32
++        select CRYPTO_ALGAPI
++        help
++          This is the ubicom32 hardware DES and 3DES implementation.
++
++config CRYPTO_SHA1_UBICOM32
++        tristate "Ubicom32 SHA1 implementation"
++        depends on CRYPTO_UBICOM32
++        select CRYPTO_ALGAPI
++        help
++          This is the ubicom32 hardware SHA1 implementation.
++
++config CRYPTO_MD5_UBICOM32
++        tristate "Ubicom32 MD5 implementation"
++        depends on CRYPTO_UBICOM32
++        select CRYPTO_ALGAPI
++        help
++          This is the ubicom32 hardware MD5 implementation.
++
+ config ZCRYPT
+ 	tristate "Support for PCI-attached cryptographic adapters"
+ 	depends on S390
+--- a/drivers/mmc/host/Kconfig
++++ b/drivers/mmc/host/Kconfig
+@@ -193,6 +193,13 @@ config MMC_TMIO
+ 	  This provides support for the SD/MMC cell found in TC6393XB,
+ 	  T7L66XB and also ipaq ASIC3
+ 
++config MMC_UBICOM32
++	tristate "Ubicom32 MMC/SD host controller"
++	depends on UBICOM32
++	help
++	  This provides support for the SD/MMC hardware found on Ubicom32 
++	  IP7K processors
++
+ config GPIOMMC
+ 	tristate "MMC/SD over GPIO-based SPI"
+ 	depends on MMC && MMC_SPI && (SPI_GPIO || SPI_GPIO_OLD)
+--- a/drivers/mmc/host/Makefile
++++ b/drivers/mmc/host/Makefile
+@@ -22,5 +22,6 @@ obj-$(CONFIG_MMC_SPI)		+= mmc_spi.o
+ obj-$(CONFIG_MMC_S3C)   	+= s3cmci.o
+ obj-$(CONFIG_MMC_SDRICOH_CS)	+= sdricoh_cs.o
+ obj-$(CONFIG_MMC_TMIO)		+= tmio_mmc.o
++obj-$(CONFIG_MMC_UBICOM32)	+= ubicom32sd.o
+ obj-$(CONFIG_GPIOMMC)		+= gpiommc.o
+ 
+--- /dev/null
++++ b/drivers/mmc/host/ubicom32sd.c
+@@ -0,0 +1,774 @@
++/*
++ * drivers/mmc/host/ubicom32sd.c
++ *	Ubicom32 Secure Digital Host Controller Interface driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++#include <linux/scatterlist.h>
++#include <linux/leds.h>
++#include <linux/gpio.h>
++#include <linux/mmc/host.h>
++
++#include <asm/ubicom32sd.h>
++
++#define DRIVER_NAME "ubicom32sd"
++
++#define sd_printk(...)
++//#define sd_printk printk
++
++#define SDTIO_VP_VERSION	3
++
++#define SDTIO_MAX_SG_BLOCKS	16
++
++enum sdtio_commands {
++	SDTIO_COMMAND_NOP,
++	SDTIO_COMMAND_SETUP,
++	SDTIO_COMMAND_SETUP_SDIO,
++	SDTIO_COMMAND_EXECUTE,
++	SDTIO_COMMAND_RESET,
++};
++
++#define SDTIO_COMMAND_SHIFT			24
++#define SDTIO_COMMAND_FLAG_STOP_RSP_CRC		(1 << 10)
++#define SDTIO_COMMAND_FLAG_STOP_RSP_136		(1 << 9)
++#define SDTIO_COMMAND_FLAG_STOP_RSP		(1 << 8)
++#define SDTIO_COMMAND_FLAG_STOP_CMD		(1 << 7)
++#define SDTIO_COMMAND_FLAG_DATA_STREAM		(1 << 6)
++#define SDTIO_COMMAND_FLAG_DATA_RD		(1 << 5)
++#define SDTIO_COMMAND_FLAG_DATA_WR		(1 << 4)
++#define SDTIO_COMMAND_FLAG_CMD_RSP_CRC		(1 << 3)
++#define SDTIO_COMMAND_FLAG_CMD_RSP_136		(1 << 2)
++#define SDTIO_COMMAND_FLAG_CMD_RSP		(1 << 1)
++#define SDTIO_COMMAND_FLAG_CMD			(1 << 0)
++
++/*
++ * SDTIO_COMMAND_SETUP_SDIO
++ */
++#define SDTIO_COMMAND_FLAG_SDIO_INT_EN		(1 << 0)
++
++/*
++ * SDTIO_COMMAND_SETUP
++ *      clock speed in arg
++ */
++#define SDTIO_COMMAND_FLAG_4BIT                 (1 << 3)
++#define SDTIO_COMMAND_FLAG_1BIT                 (1 << 2)
++#define SDTIO_COMMAND_FLAG_SET_CLOCK            (1 << 1)
++#define SDTIO_COMMAND_FLAG_SET_WIDTH            (1 << 0)
++
++#define SDTIO_COMMAND_FLAG_CMD_RSP_MASK		(SDTIO_COMMAND_FLAG_CMD_RSP | SDTIO_COMMAND_FLAG_CMD_RSP_136)
++#define SDTIO_COMMAND_FLAG_STOP_RSP_MASK	(SDTIO_COMMAND_FLAG_STOP_RSP | SDTIO_COMMAND_FLAG_STOP_RSP_136)
++#define SDTIO_COMMAND_FLAG_RSP_MASK		(SDTIO_COMMAND_FLAG_CMD_RSP_MASK | SDTIO_COMMAND_FLAG_STOP_RSP_MASK)
++
++struct sdtio_vp_sg {
++	volatile void		*addr;
++	volatile u32_t		len;
++};
++
++#define SDTIO_VP_INT_STATUS_DONE		(1 << 31)
++#define SDTIO_VP_INT_STATUS_SDIO_INT		(1 << 10)
++#define SDTIO_VP_INT_STATUS_DATA_CRC_ERR	(1 << 9)
++#define SDTIO_VP_INT_STATUS_DATA_PROG_ERR	(1 << 8)
++#define SDTIO_VP_INT_STATUS_DATA_TIMEOUT	(1 << 7)
++#define SDTIO_VP_INT_STATUS_STOP_RSP_CRC	(1 << 6)
++#define SDTIO_VP_INT_STATUS_STOP_RSP_TIMEOUT	(1 << 5)
++#define SDTIO_VP_INT_STATUS_CMD_RSP_CRC		(1 << 4)
++#define SDTIO_VP_INT_STATUS_CMD_RSP_TIMEOUT	(1 << 3)
++#define SDTIO_VP_INT_STATUS_CMD_TIMEOUT		(1 << 2)
++#define SDTIO_VP_INT_STATUS_CARD1_INSERT	(1 << 1)
++#define SDTIO_VP_INT_STATUS_CARD0_INSERT	(1 << 0)
++
++struct sdtio_vp_regs {
++	u32_t				version;
++	u32_t				f_max;
++	u32_t				f_min;
++
++	volatile u32_t			int_status;
++
++	volatile u32_t			command;
++	volatile u32_t			arg;
++
++	volatile u32_t			cmd_opcode;
++	volatile u32_t			cmd_arg;
++	volatile u32_t			cmd_rsp0;
++	volatile u32_t			cmd_rsp1;
++	volatile u32_t			cmd_rsp2;
++	volatile u32_t			cmd_rsp3;
++
++	volatile u32_t			stop_opcode;
++	volatile u32_t			stop_arg;
++	volatile u32_t			stop_rsp0;
++	volatile u32_t			stop_rsp1;
++	volatile u32_t			stop_rsp2;
++	volatile u32_t			stop_rsp3;
++
++	volatile u32_t			data_timeout_ns;
++	volatile u16_t			data_blksz;
++	volatile u16_t			data_blkct;
++	volatile u32_t			data_bytes_transferred;
++	volatile u32_t			sg_len;
++	struct sdtio_vp_sg		sg[SDTIO_MAX_SG_BLOCKS];
++};
++
++struct ubicom32sd_data {
++	const struct ubicom32sd_platform_data	*pdata;
++
++	struct mmc_host				*mmc;
++
++	/*
++	 * Lock used to protect the data structure
++	spinlock_t				lock;
++	 */
++	int	int_en;
++	int	int_pend;
++
++	/*
++	 * Receive and transmit interrupts used for communicating 
++	 * with hardware
++	 */
++	int					irq_tx;
++	int					irq_rx;
++
++	/*
++	 * Current outstanding mmc request
++	 */
++	struct mmc_request			*mrq;
++
++	/*
++	 * Hardware registers
++	 */
++	struct sdtio_vp_regs			*regs;
++};
++
++/*****************************************************************************\
++ *                                                                           *
++ * Suspend/resume                                                            *
++ *                                                                           *
++\*****************************************************************************/
++
++#if 0//def CONFIG_PM
++
++int ubicom32sd_suspend_host(struct ubicom32sd_host *host, pm_message_t state)
++{
++	int ret;
++
++	ret = mmc_suspend_host(host->mmc, state);
++	if (ret)
++		return ret;
++
++	free_irq(host->irq, host);
++
++	return 0;
++}
++
++EXPORT_SYMBOL_GPL(ubicom32sd_suspend_host);
++
++int ubicom32sd_resume_host(struct ubicom32sd_host *host)
++{
++	int ret;
++
++	if (host->flags & UBICOM32SD_USE_DMA) {
++		if (host->ops->enable_dma)
++			host->ops->enable_dma(host);
++	}
++
++	ret = request_irq(host->irq, ubicom32sd_irq, IRQF_SHARED,
++			  mmc_hostname(host->mmc), host);
++	if (ret)
++		return ret;
++
++	ubicom32sd_init(host);
++	mmiowb();
++
++	ret = mmc_resume_host(host->mmc);
++	if (ret)
++		return ret;
++
++	return 0;
++}
++
++EXPORT_SYMBOL_GPL(ubicom32sd_resume_host);
++
++#endif /* CONFIG_PM */
++
++/*
++ * ubicom32sd_send_command_sync
++ */
++static void ubicom32sd_send_command_sync(struct ubicom32sd_data *ud, u32_t command, u32_t arg)
++{
++	ud->regs->command = command;
++	ud->regs->arg = arg;
++	ubicom32_set_interrupt(ud->irq_tx);
++	while (ud->regs->command) {
++		ndelay(100);
++	}
++}
++
++/*
++ * ubicom32sd_send_command
++ */
++static void ubicom32sd_send_command(struct ubicom32sd_data *ud, u32_t command, u32_t arg)
++{
++	ud->regs->command = command;
++	ud->regs->arg = arg;
++	ubicom32_set_interrupt(ud->irq_tx);
++}
++
++/*
++ * ubicom32sd_reset
++ */
++static void ubicom32sd_reset(struct ubicom32sd_data *ud)
++{
++	ubicom32sd_send_command_sync(ud, SDTIO_COMMAND_RESET << SDTIO_COMMAND_SHIFT, 0);
++	ud->regs->int_status = 0;
++}
++
++/*
++ * ubicom32sd_mmc_request
++ */
++static void ubicom32sd_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
++{
++	struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++	u32_t command = SDTIO_COMMAND_EXECUTE << SDTIO_COMMAND_SHIFT;
++	int ret = 0;
++
++	WARN(ud->mrq != NULL, "ud->mrq still set to %p\n", ud->mrq);
++	//pr_debug("send cmd %08x arg %08x flags %08x\n", cmd->opcode, cmd->arg, cmd->flags);
++
++	if (mrq->cmd) {
++		struct mmc_command *cmd = mrq->cmd;
++
++		sd_printk("%s:\t\t\tsetup cmd %02d arg %08x flags %08x\n", mmc_hostname(mmc), cmd->opcode, cmd->arg, cmd->flags);
++
++		ud->regs->cmd_opcode = cmd->opcode;
++		ud->regs->cmd_arg = cmd->arg;
++
++		command |= SDTIO_COMMAND_FLAG_CMD;
++
++		if (cmd->flags & MMC_RSP_PRESENT) {
++			command |= SDTIO_COMMAND_FLAG_CMD_RSP;
++		}
++
++		if (cmd->flags & MMC_RSP_136) {
++			command |= SDTIO_COMMAND_FLAG_CMD_RSP_136;
++		}
++
++		if (cmd->flags & MMC_RSP_CRC) {
++			command |= SDTIO_COMMAND_FLAG_CMD_RSP_CRC;
++		}
++	}
++
++	if (mrq->data) {
++		struct mmc_data *data = mrq->data;
++		struct scatterlist *sg = data->sg;
++		int i;
++
++printk("%s:\t\t\tsetup data blksz %d num %d sglen=%d fl=%08x Tns=%u\n", mmc_hostname(mmc), data->blksz, data->blocks, data->sg_len, data->flags, data->timeout_ns);
++
++		sd_printk("%s:\t\t\tsetup data blksz %d num %d sglen=%d fl=%08x Tns=%u\n", 
++			  mmc_hostname(mmc), data->blksz, data->blocks, data->sg_len, 
++			  data->flags, data->timeout_ns);
++
++		if (data->sg_len > SDTIO_MAX_SG_BLOCKS) {
++			ret = -EINVAL;
++			data->error = -EINVAL;
++			goto fail;
++		} 
++
++		ud->regs->data_timeout_ns = data->timeout_ns;
++		ud->regs->data_blksz = data->blksz;
++		ud->regs->data_blkct = data->blocks;
++		ud->regs->sg_len = data->sg_len;
++
++		/*
++		 * Load all of our sg list into the driver sg buffer
++		 */
++		for (i = 0; i < data->sg_len; i++) {
++			sd_printk("%s: sg %d = %p %d\n", mmc_hostname(mmc), i, sg_virt(sg), sg->length);
++			ud->regs->sg[i].addr = sg_virt(sg);
++			ud->regs->sg[i].len = sg->length;
++			if (((u32_t)ud->regs->sg[i].addr & 0x03) || (sg->length & 0x03)) {
++				sd_printk("%s: Need aligned buffers\n", mmc_hostname(mmc));
++				ret = -EINVAL;
++				data->error = -EINVAL;
++				goto fail;
++			}
++			sg++;
++		}
++		if (data->flags & MMC_DATA_READ) {
++			command |= SDTIO_COMMAND_FLAG_DATA_RD;
++		} else if (data->flags & MMC_DATA_WRITE) {
++			command |= SDTIO_COMMAND_FLAG_DATA_WR;
++		} else if (data->flags & MMC_DATA_STREAM) {
++			command |= SDTIO_COMMAND_FLAG_DATA_STREAM;
++		}
++	}
++
++	if (mrq->stop) {
++		struct mmc_command *stop = mrq->stop;
++		sd_printk("%s: \t\t\tsetup stop %02d arg %08x flags %08x\n", mmc_hostname(mmc), stop->opcode, stop->arg, stop->flags);
++
++		ud->regs->stop_opcode = stop->opcode;
++		ud->regs->stop_arg = stop->arg;
++
++		command |= SDTIO_COMMAND_FLAG_STOP_CMD;
++
++		if (stop->flags & MMC_RSP_PRESENT) {
++			command |= SDTIO_COMMAND_FLAG_STOP_RSP;
++		}
++
++		if (stop->flags & MMC_RSP_136) {
++			command |= SDTIO_COMMAND_FLAG_STOP_RSP_136;
++		}
++
++		if (stop->flags & MMC_RSP_CRC) {
++			command |= SDTIO_COMMAND_FLAG_STOP_RSP_CRC;
++		}
++	}
++
++	ud->mrq = mrq;
++
++	sd_printk("%s: Sending command %08x\n", mmc_hostname(mmc), command);
++
++	ubicom32sd_send_command(ud, command, 0);
++
++	return;
++fail:
++	sd_printk("%s: mmcreq ret = %d\n", mmc_hostname(mmc), ret);
++	mrq->cmd->error = ret;
++	mmc_request_done(mmc, mrq);
++}
++
++/*
++ * ubicom32sd_mmc_set_ios
++ */
++static void ubicom32sd_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
++{
++	struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++	u32_t command = SDTIO_COMMAND_SETUP << SDTIO_COMMAND_SHIFT;
++	u32_t arg = 0;
++	sd_printk("%s: ios call bw:%u pm:%u clk:%u\n", mmc_hostname(mmc), 1 << ios->bus_width, ios->power_mode, ios->clock);
++
++	switch (ios->bus_width) {
++	case MMC_BUS_WIDTH_1:
++		command |= SDTIO_COMMAND_FLAG_SET_WIDTH | SDTIO_COMMAND_FLAG_1BIT;
++		break;
++
++	case MMC_BUS_WIDTH_4:
++		command |= SDTIO_COMMAND_FLAG_SET_WIDTH | SDTIO_COMMAND_FLAG_4BIT;
++		break;
++	}
++
++	if (ios->clock) {
++		arg = ios->clock;
++		command |= SDTIO_COMMAND_FLAG_SET_CLOCK;
++	}
++
++	switch (ios->power_mode) {
++
++	/*
++	 * Turn off the SD bus (power + clock)
++	 */
++	case MMC_POWER_OFF:
++		gpio_set_value(ud->pdata->cards[0].pin_pwr, !ud->pdata->cards[0].pwr_polarity);
++		command |= SDTIO_COMMAND_FLAG_SET_CLOCK;
++		break;
++
++	/*
++	 * Turn on the power to the SD bus
++	 */
++	case MMC_POWER_ON:
++		gpio_set_value(ud->pdata->cards[0].pin_pwr, ud->pdata->cards[0].pwr_polarity);
++		break;
++
++	/*
++	 * Turn on the clock to the SD bus
++	 */
++	case MMC_POWER_UP:
++		/*
++		 * Done above
++		 */
++		break;
++	}
++
++	ubicom32sd_send_command_sync(ud, command, arg);
++
++	/*
++	 * Let the power settle down
++	 */
++	udelay(500);
++}
++
++/*
++ * ubicom32sd_mmc_get_cd
++ */
++static int ubicom32sd_mmc_get_cd(struct mmc_host *mmc)
++{
++	struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++	sd_printk("%s: get cd %u %u\n", mmc_hostname(mmc), ud->pdata->cards[0].pin_cd, gpio_get_value(ud->pdata->cards[0].pin_cd));
++
++	return gpio_get_value(ud->pdata->cards[0].pin_cd) ? 
++				ud->pdata->cards[0].cd_polarity : 
++				!ud->pdata->cards[0].cd_polarity;
++}
++
++/*
++ * ubicom32sd_mmc_get_ro
++ */
++static int ubicom32sd_mmc_get_ro(struct mmc_host *mmc)
++{
++	struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++	sd_printk("%s: get ro %u %u\n", mmc_hostname(mmc), ud->pdata->cards[0].pin_wp, gpio_get_value(ud->pdata->cards[0].pin_wp));
++
++	return gpio_get_value(ud->pdata->cards[0].pin_wp) ? 
++				ud->pdata->cards[0].wp_polarity :
++				!ud->pdata->cards[0].wp_polarity;
++}
++
++/*
++ * ubicom32sd_mmc_enable_sdio_irq
++ */
++static void ubicom32sd_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
++{
++	struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++
++	ud->int_en = enable;
++	if (enable && ud->int_pend) {
++		ud->int_pend = 0;
++		mmc_signal_sdio_irq(mmc);
++	}
++}
++
++/*
++ * ubicom32sd_interrupt
++ */
++static irqreturn_t ubicom32sd_interrupt(int irq, void *dev)
++{
++	struct mmc_host *mmc = (struct mmc_host *)dev;
++	struct mmc_request *mrq;
++	struct ubicom32sd_data *ud;
++	u32_t int_status;
++
++	if (!mmc) {
++		return IRQ_HANDLED;
++	}
++
++	ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++	if (!ud) {
++		return IRQ_HANDLED;
++	}
++
++	int_status = ud->regs->int_status;
++	ud->regs->int_status &= ~int_status;
++
++	if (int_status & SDTIO_VP_INT_STATUS_SDIO_INT) {
++		if (ud->int_en) {
++			ud->int_pend = 0;
++			mmc_signal_sdio_irq(mmc);
++		} else {
++			ud->int_pend++;
++		}
++	}
++
++	if (!(int_status & SDTIO_VP_INT_STATUS_DONE)) {
++		return IRQ_HANDLED;
++	}
++
++	mrq = ud->mrq;
++	if (!mrq) {
++		sd_printk("%s: Spurious interrupt", mmc_hostname(mmc));
++		return IRQ_HANDLED;
++	}
++	ud->mrq = NULL;
++
++	/*
++	 * SDTIO_VP_INT_DONE
++	 */
++	if (mrq->cmd->flags & MMC_RSP_PRESENT) {
++		struct mmc_command *cmd = mrq->cmd;
++		cmd->error = 0;
++
++		if ((cmd->flags & MMC_RSP_CRC) && (int_status & SDTIO_VP_INT_STATUS_CMD_RSP_CRC)) {
++			cmd->error = -EILSEQ;
++		} else if (int_status & SDTIO_VP_INT_STATUS_CMD_RSP_TIMEOUT) {
++			cmd->error = -ETIMEDOUT;
++			goto done;
++		} else if (cmd->flags & MMC_RSP_136) {
++			cmd->resp[0] = ud->regs->cmd_rsp0;
++			cmd->resp[1] = ud->regs->cmd_rsp1;
++			cmd->resp[2] = ud->regs->cmd_rsp2;
++			cmd->resp[3] = ud->regs->cmd_rsp3;
++		} else {
++			cmd->resp[0] = ud->regs->cmd_rsp0;
++		}
++		sd_printk("%s:\t\t\tResponse %08x %08x %08x %08x err=%d\n", mmc_hostname(mmc), cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3], cmd->error);
++	}
++
++	if (mrq->data) {
++		struct mmc_data *data = mrq->data;
++
++		if (int_status & SDTIO_VP_INT_STATUS_DATA_TIMEOUT) {
++			data->error = -ETIMEDOUT;
++			sd_printk("%s:\t\t\tData Timeout\n", mmc_hostname(mmc));
++			goto done;
++		} else if (int_status & SDTIO_VP_INT_STATUS_DATA_CRC_ERR) {
++			data->error = -EILSEQ;
++			sd_printk("%s:\t\t\tData CRC\n", mmc_hostname(mmc));
++			goto done;
++		} else if (int_status & SDTIO_VP_INT_STATUS_DATA_PROG_ERR) {
++			data->error = -EILSEQ;
++			sd_printk("%s:\t\t\tData Program Error\n", mmc_hostname(mmc));
++			goto done;
++		} else {
++			data->error = 0;
++			data->bytes_xfered = ud->regs->data_bytes_transferred;
++		}
++	}
++
++	if (mrq->stop && (mrq->stop->flags & MMC_RSP_PRESENT)) {
++		struct mmc_command *stop = mrq->stop;
++		stop->error = 0;
++
++		if ((stop->flags & MMC_RSP_CRC) && (int_status & SDTIO_VP_INT_STATUS_STOP_RSP_CRC)) {
++			stop->error = -EILSEQ;
++		} else if (int_status & SDTIO_VP_INT_STATUS_STOP_RSP_TIMEOUT) {
++			stop->error = -ETIMEDOUT;
++			goto done;
++		} else if (stop->flags & MMC_RSP_136) {
++			stop->resp[0] = ud->regs->stop_rsp0;
++			stop->resp[1] = ud->regs->stop_rsp1;
++			stop->resp[2] = ud->regs->stop_rsp2;
++			stop->resp[3] = ud->regs->stop_rsp3;
++		} else {
++			stop->resp[0] = ud->regs->stop_rsp0;
++		}
++		sd_printk("%s:\t\t\tStop Response %08x %08x %08x %08x err=%d\n", mmc_hostname(mmc), stop->resp[0], stop->resp[1], stop->resp[2], stop->resp[3], stop->error);
++	}
++
++done:
++	mmc_request_done(mmc, mrq);
++
++	return IRQ_HANDLED;
++}
++
++static struct mmc_host_ops ubicom32sd_ops = {
++	.request		= ubicom32sd_mmc_request,
++	.set_ios		= ubicom32sd_mmc_set_ios,
++	.get_ro			= ubicom32sd_mmc_get_ro,
++	.get_cd			= ubicom32sd_mmc_get_cd,
++	.enable_sdio_irq	= ubicom32sd_mmc_enable_sdio_irq,
++};
++
++/*
++ * ubicom32sd_probe
++ */
++static int __devinit ubicom32sd_probe(struct platform_device *pdev)
++{
++	struct ubicom32sd_platform_data *pdata = (struct ubicom32sd_platform_data *)pdev->dev.platform_data;
++	struct mmc_host *mmc;
++	struct ubicom32sd_data *ud;
++	struct resource *res_regs;
++	struct resource *res_irq_tx;
++	struct resource *res_irq_rx;
++	int ret;
++
++	/*
++	 * Get our resources, regs is the hardware driver base address
++	 * and the tx and rx irqs are used to communicate with the 
++	 * hardware driver.
++	 */
++	res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	res_irq_tx = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
++	res_irq_rx = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
++	if (!res_regs || !res_irq_tx || !res_irq_rx) {
++		ret = -EINVAL;
++		goto fail;
++	}
++
++	/*
++	 * Reserve any gpios we need
++	 */
++	ret = gpio_request(pdata->cards[0].pin_wp, "sd-wp");
++	if (ret) {
++		goto fail;
++	}
++	gpio_direction_input(pdata->cards[0].pin_wp);
++
++	ret = gpio_request(pdata->cards[0].pin_cd, "sd-cd");
++	if (ret) {
++		goto fail_cd;
++	}
++	gpio_direction_input(pdata->cards[0].pin_cd);
++
++	/*
++	 * HACK: for the dual port controller on port F, we don't support the second port right now
++	 */
++	if (pdata->ncards > 1) {
++		ret = gpio_request(pdata->cards[1].pin_pwr, "sd-pwr");
++		gpio_direction_output(pdata->cards[1].pin_pwr, !pdata->cards[1].pwr_polarity);
++		gpio_direction_output(pdata->cards[1].pin_pwr, pdata->cards[1].pwr_polarity);
++	}
++
++	ret = gpio_request(pdata->cards[0].pin_pwr, "sd-pwr");
++	if (ret) {
++		goto fail_pwr;
++	}
++	gpio_direction_output(pdata->cards[0].pin_pwr, !pdata->cards[0].pwr_polarity);
++
++	/*
++	 * Allocate the MMC driver, it includes memory for our data.
++	 */
++	mmc = mmc_alloc_host(sizeof(struct ubicom32sd_data), &pdev->dev);
++	if (!mmc) {
++		ret = -ENOMEM;
++		goto fail_mmc;
++	}
++	ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++	ud->mmc = mmc;
++	ud->pdata = pdata;
++	ud->regs = (struct sdtio_vp_regs *)res_regs->start;
++	ud->irq_tx = res_irq_tx->start;
++	ud->irq_rx = res_irq_rx->start;
++	platform_set_drvdata(pdev, mmc);
++
++	ret = request_irq(ud->irq_rx, ubicom32sd_interrupt, IRQF_DISABLED, mmc_hostname(mmc), mmc);
++	if (ret) {
++		goto fail_mmc;
++	}
++
++	/*
++	 * Fill in the mmc structure
++	 */
++	mmc->ops = &ubicom32sd_ops;
++	mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_NEEDS_POLL | MMC_CAP_SDIO_IRQ |
++		    MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
++
++	mmc->f_min = ud->regs->f_min;
++	mmc->f_max = ud->regs->f_max;
++	mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
++
++	/*
++	 * Setup some restrictions on transfers
++	 *
++	 * We allow up to SDTIO_MAX_SG_BLOCKS of data to DMA into, there are
++	 * not really any "max_seg_size", "max_req_size", or "max_blk_count"
++	 * restrictions (must be less than U32_MAX though), pick
++	 * something large?!...
++	 *
++	 * The hardware can do up to 4095 bytes per block, since the spec
++	 * only requires 2048, we'll set it to that and not worry about
++	 * potential weird blk lengths.
++	 */
++	mmc->max_hw_segs = SDTIO_MAX_SG_BLOCKS;
++	mmc->max_phys_segs = SDTIO_MAX_SG_BLOCKS;
++	mmc->max_seg_size = 1024 * 1024;
++	mmc->max_req_size = 1024 * 1024;
++	mmc->max_blk_count = 1024;
++
++	mmc->max_blk_size = 2048;
++
++	ubicom32sd_reset(ud);
++
++	/*
++	 * enable interrupts
++	 */
++	ud->int_en = 0;
++	ubicom32sd_send_command_sync(ud, SDTIO_COMMAND_SETUP_SDIO << SDTIO_COMMAND_SHIFT | SDTIO_COMMAND_FLAG_SDIO_INT_EN, 0);
++
++	mmc_add_host(mmc);
++
++	printk(KERN_INFO "%s at %p, irq %d/%d\n", mmc_hostname(mmc),
++			ud->regs, ud->irq_tx, ud->irq_rx);
++	return 0;
++
++fail_mmc:
++	gpio_free(pdata->cards[0].pin_pwr);
++fail_pwr:
++	gpio_free(pdata->cards[0].pin_cd);
++fail_cd:
++	gpio_free(pdata->cards[0].pin_wp);
++fail:
++	return ret;
++}
++
++/*
++ * ubicom32sd_remove
++ */
++static int __devexit ubicom32sd_remove(struct platform_device *pdev)
++{
++	struct mmc_host *mmc = platform_get_drvdata(pdev);
++
++	platform_set_drvdata(pdev, NULL);
++
++	if (mmc) {
++		struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++
++		gpio_free(ud->pdata->cards[0].pin_pwr);
++		gpio_free(ud->pdata->cards[0].pin_cd);
++		gpio_free(ud->pdata->cards[0].pin_wp);
++
++		mmc_remove_host(mmc);
++		mmc_free_host(mmc);
++	}
++
++	/*
++	 * Note that our data is allocated as part of the mmc structure
++	 * so we don't need to free it.
++	 */
++	return 0;
++}
++
++static struct platform_driver ubicom32sd_driver = {
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++	},
++	.probe = ubicom32sd_probe,
++	.remove = __devexit_p(ubicom32sd_remove),
++#if 0
++	.suspend = ubicom32sd_suspend,
++	.resume = ubicom32sd_resume,
++#endif
++};
++
++/*
++ * ubicom32sd_init
++ */
++static int __init ubicom32sd_init(void)
++{
++	return platform_driver_register(&ubicom32sd_driver);
++}
++module_init(ubicom32sd_init);
++
++/*
++ * ubicom32sd_exit
++ */
++static void __exit ubicom32sd_exit(void)
++{
++    platform_driver_unregister(&ubicom32sd_driver);
++}
++module_exit(ubicom32sd_exit);
++
++MODULE_AUTHOR("Patrick Tjin");
++MODULE_DESCRIPTION("Ubicom32 Secure Digital Host Controller Interface driver");
++MODULE_LICENSE("GPL");
++
+--- a/drivers/mtd/devices/Kconfig
++++ b/drivers/mtd/devices/Kconfig
+@@ -104,6 +104,17 @@ config M25PXX_USE_FAST_READ
+ 	help
+ 	  This option enables FAST_READ access supported by ST M25Pxx.
+ 
++config MTD_UBI32_M25P80
++	tristate "Ubicom processor support for most SPI Flash chips (AT26DF, M25P, W25X, ...)"
++	depends on UBICOM32
++	default y
++	help
++	  This enables access to most modern SPI flash chips, used for
++	  program and data storage.   Series supported include Atmel AT26DF,
++	  Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X.  Other chips
++	  are supported as well.  See the driver source for the current list,
++	  or to add other chips.
++
+ config MTD_SLRAM
+ 	tristate "Uncached system RAM"
+ 	help
+--- a/drivers/mtd/devices/Makefile
++++ b/drivers/mtd/devices/Makefile
+@@ -16,3 +16,4 @@ obj-$(CONFIG_MTD_LART)		+= lart.o
+ obj-$(CONFIG_MTD_BLOCK2MTD)	+= block2mtd.o
+ obj-$(CONFIG_MTD_DATAFLASH)	+= mtd_dataflash.o
+ obj-$(CONFIG_MTD_M25P80)	+= m25p80.o
++obj-$(CONFIG_MTD_UBI32_M25P80)	+= ubi32-m25p80.o
+--- /dev/null
++++ b/drivers/mtd/devices/ubi32-m25p80.c
+@@ -0,0 +1,1066 @@
++/*
++ * drivers/mtd/devices/ubi32-m25p80.c
++ *   NOR flash driver, Ubicom processor internal SPI flash interface.
++ *
++ *   This code instantiates the serial flash that contains the
++ *   original bootcode.  The serial flash start at address 0x60000000
++ *   in both Ubicom32V3 and Ubicom32V4 ISAs.
++ *
++ *   This piece of flash is made to appear as a Memory Technology
++ *   Device (MTD) with this driver to allow Read/Write/Erase operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/types.h>
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/mtd/physmap.h>
++#include <linux/spi/spi.h>
++#include <linux/spi/flash.h>
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/interrupt.h>
++#include <linux/mutex.h>
++
++#include <asm/ip5000.h>
++#include <asm/devtree.h>
++
++#define UBICOM32_FLASH_BASE	0x60000000
++#define UBICOM32_FLASH_MAX_SIZE 0x01000000
++#define UBICOM32_FLASH_START	0x00000000
++#define UBICOM32_KERNEL_OFFSET	0x00010000 /* The kernel starts after Ubicom
++					    * .protect section. */
++
++static struct mtd_partition ubicom32_flash_partitions[] = {
++	{
++		.name	= "Bootloader",		/* Protected Section
++						 * Partition */
++		.size	= 0x10000,
++		.offset	= UBICOM32_FLASH_START,
++//		.mask_flags = MTD_WRITEABLE	/* Mark Read-only */
++	},
++	{
++		.name	= "Kernel",		/* Kernel Partition. */
++		.size	= 0,			/* this will be set up during
++						 * probe stage. At that time we
++						 * will know end of linux image
++						 * in flash. */
++		.offset	= MTDPART_OFS_APPEND,	/* Starts right after Protected
++						 * section. */
++//		.mask_flags = MTD_WRITEABLE	/* Mark Read-only */
++	},
++	{
++		.name	= "Rest",		/* Rest of the flash. */
++		.size	= 0x200000,		/* Use up what remains in the
++						 * flash. */
++		.offset	= MTDPART_OFS_NXTBLK,	/* Starts right after Protected
++						 * section. */
++	}
++};
++
++static struct flash_platform_data ubicom32_flash_data = {
++	.name = "ubicom32_boot_flash",
++	.parts = ubicom32_flash_partitions,
++	.nr_parts = ARRAY_SIZE(ubicom32_flash_partitions),
++};
++
++static struct resource ubicom32_flash_resource[] = {
++	{
++		.start	= UBICOM32_FLASH_BASE,
++		.end	= UBICOM32_FLASH_BASE +
++		UBICOM32_FLASH_MAX_SIZE - 1,
++		.flags	= IORESOURCE_MEM,
++	},
++};
++
++static struct platform_device ubicom32_flash_device = {
++	.name = "ubicom32flashdriver",
++	.id = 0, /* Bus number */
++	.num_resources = ARRAY_SIZE(ubicom32_flash_resource),
++	.resource = ubicom32_flash_resource,
++	.dev = {
++		.platform_data = &ubicom32_flash_data,
++	},
++};
++
++static struct platform_device *ubicom32_flash_devices[] = {
++	&ubicom32_flash_device,
++};
++
++static int __init ubicom32_flash_init(void)
++{
++	printk(KERN_INFO "%s(): registering device resources\n",
++	       __FUNCTION__);
++	platform_add_devices(ubicom32_flash_devices,
++			     ARRAY_SIZE(ubicom32_flash_devices));
++	return 0;
++}
++
++arch_initcall(ubicom32_flash_init);
++
++/*
++ * MTD SPI driver for ST M25Pxx (and similar) serial flash chips through
++ * Ubicom32 SPI controller.
++ *
++ * Author: Mike Lavender, mike@steroidmicros.com
++ *
++ * Copyright (c) 2005, Intec Automation Inc.
++ *
++ * Some parts are based on lart.c by Abraham Van Der Merwe
++ *
++ * Cleaned up and generalized based on mtd_dataflash.c
++ *
++ * This code is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#define FLASH_PAGESIZE		256
++
++/* Flash opcodes. */
++#define	OPCODE_WREN		0x06	/* Write enable */
++#define	OPCODE_RDSR		0x05	/* Read status register */
++#define	OPCODE_READ		0x03	/* Read data bytes (low frequency) */
++#define	OPCODE_FAST_READ	0x0b	/* Read data bytes (high frequency) */
++#define	OPCODE_PP		0x02	/* Page program (up to 256 bytes) */
++#define	OPCODE_BE_4K		0x20	/* Erase 4KiB block */
++#define	OPCODE_BE_32K		0x52	/* Erase 32KiB block */
++#define	OPCODE_SE		0xd8	/* Sector erase (usually 64KiB) */
++#define	OPCODE_RDID		0x9f	/* Read JEDEC ID */
++
++/* Status Register bits. */
++#define	SR_WIP			1	/* Write in progress */
++#define	SR_WEL			2	/* Write enable latch */
++/* meaning of other SR_* bits may differ between vendors */
++#define	SR_BP0			4	/* Block protect 0 */
++#define	SR_BP1			8	/* Block protect 1 */
++#define	SR_BP2			0x10	/* Block protect 2 */
++#define	SR_SRWD			0x80	/* SR write protect */
++
++/* Define max times to check status register before we give up. */
++#define	MAX_READY_WAIT_COUNT	100000
++
++
++#ifdef CONFIG_MTD_PARTITIONS
++#define	mtd_has_partitions()	(1)
++#else
++#define	mtd_has_partitions()	(0)
++#endif
++
++/*
++ * Ubicom32 FLASH Command Set
++ */
++#define FLASH_FC_INST_CMD	0x00	/* for SPI command only transaction */
++#define FLASH_FC_INST_WR	0x01	/* for SPI write transaction */
++#define FLASH_FC_INST_RD	0x02	/* for SPI read transaction */
++
++#define ALIGN_DOWN(v, a) ((v) & ~((a) - 1))
++#define ALIGN_UP(v, a) (((v) + ((a) - 1)) & ~((a) - 1))
++
++#define	FLASH_COMMAND_KICK_OFF(io)							\
++	asm volatile(									\
++	"	bset	"D(IO_INT_CLR)"(%0), #0, #%%bit("D(IO_XFL_INT_DONE)")	\n\t"	\
++	"	jmpt.t	.+4							\n\t"	\
++	"	bset	"D(IO_INT_SET)"(%0), #0, #%%bit("D(IO_XFL_INT_START)")	\n\t"	\
++		:									\
++		: "a" (io)								\
++		: "memory", "cc"							\
++	);
++
++#define	FLASH_COMMAND_WAIT_FOR_COMPLETION(io)						\
++	asm volatile(									\
++	"	btst	"D(IO_INT_STATUS)"(%0), #%%bit("D(IO_XFL_INT_DONE)")	\n\t"	\
++	"	jmpeq.f	.-4							\n\t"	\
++		:									\
++		: "a" (io)								\
++		: "memory", "cc"									\
++	);
++
++#define	FLASH_COMMAND_EXEC(io)								\
++	FLASH_COMMAND_KICK_OFF(io)							\
++	FLASH_COMMAND_WAIT_FOR_COMPLETION(io)
++
++
++#define OSC1_FREQ 12000000
++#define TEN_MICRO_SECONDS (OSC1_FREQ * 10 / 1000000)
++
++/*
++ * We will have to eventually replace this null definition with the real thing.
++ */
++#define WATCHDOG_RESET()
++
++#define EXTFLASH_WRITE_FIFO_SIZE 32
++#define EXTFLASH_WRITE_BLOCK_SIZE EXTFLASH_WRITE_FIFO_SIZE /* limit the size to
++							    * FIFO capacity, so
++							    * the thread can be
++							    * suspended. */
++
++#define JFFS2_FILESYSTEM_SIZE 0x100000
++
++/****************************************************************************/
++
++struct m25p {
++	struct platform_device	*plt_dev;
++	struct mutex		lock;
++	struct mtd_info		mtd;
++	unsigned		partitioned:1;
++	u8			erase_opcode;
++	u8			command[4];
++};
++
++static inline struct m25p *mtd_to_m25p(struct mtd_info *mtd)
++{
++	return container_of(mtd, struct m25p, mtd);
++}
++
++/****************************************************************************/
++
++/*
++ * Internal helper functions
++ */
++
++/*
++ * Read the status register, returning its value in the location
++ * Return the status register value.
++ * Returns negative if error occurred.
++ */
++static int read_sr(struct m25p *flash)
++{
++	struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++
++	io->ctl1 &= ~IO_XFL_CTL1_MASK;
++	io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) |
++		IO_XFL_CTL1_FC_DATA(1);
++	io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_RDSR);
++	FLASH_COMMAND_EXEC(io);
++
++	return io->status1 & 0xff;
++}
++
++/*
++ * mem_flash_io_read_u32()
++ */
++static u32 mem_flash_io_read_u32(u32 addr)
++{
++	struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++	io->ctl1 &= ~IO_XFL_CTL1_MASK;
++	io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) |
++		IO_XFL_CTL1_FC_DATA(4) | IO_XFL_CTL1_FC_DUMMY(1) |
++		IO_XFL_CTL1_FC_ADDR;
++	io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_FAST_READ) |
++		IO_XFL_CTL2_FC_ADDR(addr);
++	FLASH_COMMAND_EXEC(io);
++	return io->status1;
++}
++
++/*
++ * mem_flash_read_u8()
++ */
++static u8 mem_flash_read_u8(u32 addr)
++{
++	u32 tmp_addr = ALIGN_DOWN(addr, 4);
++	u32 tmp_data = mem_flash_io_read_u32(tmp_addr);
++	u8 *ptr = (u8 *)&tmp_data;
++	return ptr[addr & 0x3];
++}
++
++/*
++ * mem_flash_read()
++ *	No need to lock as read is implemented with ireads (same as normal flash
++ *	execution).
++ */
++static void mem_flash_read(u32 addr, void *dst, size_t length)
++{
++	/*
++	 * Range check
++	 */
++	/*
++	 * Fix source alignment.
++	 */
++	while (addr & 0x03) {
++		if (length == 0) {
++			return;
++		}
++		*((u8 *)dst) = mem_flash_read_u8(addr++);
++		dst++;
++		length--;
++	}
++
++	while (length >= 4) {
++		u32 tmp_data = mem_flash_io_read_u32(addr);
++		addr += 4;
++		length -= 4;
++
++		/*
++		 * Send the data to the destination.
++		 */
++		memcpy((void *)dst, (void *)&tmp_data, 4);
++		dst += 4;
++	}
++
++	while (length--) {
++		*((u8 *)dst) = mem_flash_read_u8(addr++);
++		dst++;
++	}
++}
++
++/*
++ * mem_flash_wait_until_complete()
++ */
++static void mem_flash_wait_until_complete(void)
++{
++	struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++
++	do {
++		/*
++		 * Put a delay here to deal with flash programming problem.
++		 */
++		u32 mptval = UBICOM32_IO_TIMER->mptval + TEN_MICRO_SECONDS;
++		while (UBICOM32_IO_TIMER->mptval < mptval)
++			;
++
++		io->ctl1 &= ~IO_XFL_CTL1_MASK;
++		io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) |
++			IO_XFL_CTL1_FC_DATA(1);
++		io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_RDSR);
++		FLASH_COMMAND_EXEC(io);
++	} while (io->status1 & SR_WIP);
++}
++
++/*
++ * mem_flash_write_next()
++ */
++static size_t mem_flash_write_next(u32 addr, u8 *buf, size_t length)
++{
++	struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++	u32 data_start = addr;
++	u32 data_end = addr + length;
++	size_t count;
++	u32 i, j;
++
++	/*
++	 * Top limit address.
++	 */
++	u32 block_start = ALIGN_DOWN(data_start, 4);
++	u32 block_end = block_start + EXTFLASH_WRITE_BLOCK_SIZE;
++
++	union {
++		u8 byte[EXTFLASH_WRITE_BLOCK_SIZE];
++		u32 word[EXTFLASH_WRITE_BLOCK_SIZE / 4];
++	} write_buf;
++
++	u32 *flash_addr = (u32 *)block_start;
++
++	/*
++	 * The write block must be limited by FLASH internal buffer.
++	 */
++	u32 block_end_align = ALIGN_DOWN(block_end, 256);
++	bool write_needed;
++
++	block_end = (block_end_align > block_start)
++		? block_end_align : block_end;
++	data_end = (data_end <= block_end) ? data_end : block_end;
++	block_end = ALIGN_UP(data_end, 4);
++	count = data_end - data_start;
++
++	/*
++	 * Transfer data to a buffer.
++	 */
++	for (i = 0; i < (block_end - block_start) / 4; i++) {
++		/*
++		 * The FLASH read can hold D-cache for a long time.
++		 * Use I/O operation to read FLASH to avoid starving other
++		 * threads, especially HRT.  (Do this for application only)
++		 */
++		write_buf.word[i] = mem_flash_io_read_u32(
++			(u32)(&flash_addr[i]));
++	}
++
++	write_needed = false;
++	for (i = 0, j = (data_start - block_start);
++	     i < (data_end - data_start); i++, j++) {
++		write_needed = write_needed || (write_buf.byte[j] != buf[i]);
++		write_buf.byte[j] &= buf[i];
++	}
++
++
++	/*
++	 * If the data in FLASH is identical to what to be written. Then skip
++	 * it.
++	 */
++	if (write_needed) {
++		/*
++		 * Write to flash.
++		 */
++		void *tmp __attribute__((unused));
++		s32 extra_words;
++
++		asm volatile(
++		"	move.4	%0, %2									\n\t"
++		"	bset	"D(IO_INT_SET)"(%1), #0, #%%bit("D(IO_PORTX_INT_FIFO_TX_RESET)")	\n\t"
++		"	pipe_flush 0									\n\t"
++		"	.rept	"D(EXTFLASH_WRITE_FIFO_SIZE / 4)"					\n\t"
++		"	move.4	"D(IO_TX_FIFO)"(%1), (%0)4++						\n\t"
++		"	.endr										\n\t"
++			: "=&a" (tmp)
++			: "a" (io), "r" (&write_buf.word[0])
++			: "memory", "cc"
++		);
++
++		/* Lock FLASH for write access. */
++		io->ctl0 |= IO_XFL_CTL0_MCB_LOCK;
++
++		/* Command: WREN */
++		io->ctl1 &= ~IO_XFL_CTL1_MASK;
++		io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_CMD);
++		io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_WREN);
++		FLASH_COMMAND_EXEC(io);
++
++		/* Command: BYTE PROGRAM */
++		io->ctl1 &= ~IO_XFL_CTL1_MASK;
++		io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_WR) |
++			IO_XFL_CTL1_FC_DATA(block_end - block_start) |
++			IO_XFL_CTL1_FC_ADDR;
++		io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_PP) |
++			IO_XFL_CTL2_FC_ADDR(block_start);
++		FLASH_COMMAND_KICK_OFF(io);
++
++		extra_words = (s32)(block_end - block_start -
++				    EXTFLASH_WRITE_FIFO_SIZE) / 4;
++		if (extra_words > 0) {
++			asm volatile(
++			"	move.4		%0, %3				\n\t"
++			"1:	cmpi		"D(IO_FIFO_LEVEL)"(%1), #4	\n\t"
++			"	jmpgt.s.t	1b				\n\t"
++			"	move.4		"D(IO_TX_FIFO)"(%1), (%0)4++	\n\t"
++			"	add.4		%2, #-1, %2			\n\t"
++			"	jmpgt.t		1b				\n\t"
++				: "=&a" (tmp)
++				: "a" (io), "d" (extra_words),
++				  "r" (&write_buf.word[EXTFLASH_WRITE_FIFO_SIZE / 4])
++				: "memory", "cc"
++			);
++		}
++		FLASH_COMMAND_WAIT_FOR_COMPLETION(io);
++
++		mem_flash_wait_until_complete();
++
++
++		/* Unlock FLASH for cache access. */
++		io->ctl0 &= ~IO_XFL_CTL0_MCB_LOCK;
++	}
++
++	/*
++	 * Complete.
++	 */
++	return count;
++}
++
++/*
++ * mem_flash_write()
++ */
++static void mem_flash_write(u32 addr, const void *src, size_t length)
++{
++	/*
++	 * Write data
++	 */
++	u8_t *ptr = (u8_t *)src;
++	while (length) {
++		size_t count = mem_flash_write_next(addr, ptr, length);
++		addr += count;
++		ptr += count;
++		length -= count;
++	}
++}
++
++/*
++ * Service routine to read status register until ready, or timeout occurs.
++ * Returns non-zero if error.
++ */
++static int wait_till_ready(struct m25p *flash)
++{
++	int count;
++	int sr;
++
++	/* one chip guarantees max 5 msec wait here after page writes,
++	 * but potentially three seconds (!) after page erase.
++	 */
++	for (count = 0; count < MAX_READY_WAIT_COUNT; count++) {
++		u32 mptval;
++		sr = read_sr(flash);
++		if (sr < 0)
++			break;
++		else if (!(sr & SR_WIP))
++			return 0;
++
++		/*
++		 * Put a 10us delay here to deal with flash programming problem.
++		 */
++		mptval = UBICOM32_IO_TIMER->mptval + TEN_MICRO_SECONDS;
++		while ((s32)(mptval - UBICOM32_IO_TIMER->mptval) > 0) {
++			WATCHDOG_RESET();
++		}
++		/* REVISIT sometimes sleeping would be best */
++	}
++
++	return 1;
++}
++
++/*
++ * mem_flash_erase_page()
++ */
++static void mem_flash_erase_page(u32 addr)
++{
++	struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++
++	/* Lock FLASH for write access. */
++	io->ctl0 |= IO_XFL_CTL0_MCB_LOCK;
++
++	/* Command: WREN */
++	io->ctl1 &= ~IO_XFL_CTL1_MASK;
++	io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_CMD);
++	io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_WREN);
++	FLASH_COMMAND_EXEC(io);
++
++	/* Command: ERASE */
++	io->ctl1 &= ~IO_XFL_CTL1_MASK;
++	io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_CMD) |
++		IO_XFL_CTL1_FC_ADDR;
++	io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_SE) |
++		IO_XFL_CTL2_FC_ADDR(addr);
++	FLASH_COMMAND_EXEC(io);
++
++	mem_flash_wait_until_complete();
++
++	/* Unlock FLASH for cache access. */
++	io->ctl0 &= ~IO_XFL_CTL0_MCB_LOCK;
++}
++
++/*
++ * mem_flash_erase()
++ */
++static u32 mem_flash_erase(u32 addr, u32 length)
++{
++	/*
++	 * Calculate the endaddress to be the first address of the page
++	 * just beyond this erase section of pages.
++	 */
++	u32 endaddr = addr + length;
++
++	/*
++	 * Erase.
++	 */
++	while (addr < endaddr) {
++		u32 test_addr = addr;
++		mem_flash_erase_page(addr);
++
++		/*
++		 * Test how much was erased as actual flash page at this address
++		 * may be smaller than the expected page size.
++		 */
++		while (test_addr < endaddr) {
++			/*
++			 * The FLASH read can hold D-cache for a long time.  Use
++			 * I/O operation to read FLASH to avoid starving other
++			 * threads, especially HRT.  (Do this for application
++			 * only)
++			 */
++			if (mem_flash_io_read_u32(test_addr) != 0xFFFFFFFF) {
++				break;
++			}
++			test_addr += 4;
++		}
++		if (test_addr == addr) {
++			printk("erase failed at address 0x%x, skipping",
++			       test_addr);
++			test_addr += 4;
++			return 1;
++		}
++		addr = test_addr;
++	}
++	return 0;
++}
++
++
++/****************************************************************************/
++
++/*
++ * MTD implementation
++ */
++
++/*
++ * Erase an address range on the flash chip.  The address range may extend
++ * one or more erase sectors.  Return an error is there is a problem erasing.
++ */
++static int ubicom32_flash_driver_erase(struct mtd_info *mtd,
++				       struct erase_info *instr)
++{
++	struct m25p *flash = mtd_to_m25p(mtd);
++	u32 addr, len;
++
++	DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
++			flash->plt_dev->dev.bus_id, __FUNCTION__, "at",
++			(u32)instr->addr, instr->len);
++
++	/* sanity checks */
++	if (instr->addr + instr->len > flash->mtd.size)
++		return -EINVAL;
++	if ((instr->addr % mtd->erasesize) != 0
++			|| (instr->len % mtd->erasesize) != 0) {
++		return -EINVAL;
++	}
++
++	addr = instr->addr + UBICOM32_FLASH_BASE;
++	len = instr->len;
++
++	mutex_lock(&flash->lock);
++
++	/* REVISIT in some cases we could speed up erasing large regions
++	 * by using OPCODE_SE instead of OPCODE_BE_4K
++	 */
++
++	/* now erase those sectors */
++	if (mem_flash_erase(addr, len)) {
++		instr->state = MTD_ERASE_FAILED;
++		mutex_unlock(&flash->lock);
++		return -EIO;
++	}
++
++	mutex_unlock(&flash->lock);
++	instr->state = MTD_ERASE_DONE;
++	mtd_erase_callback(instr);
++	return 0;
++}
++
++/*
++ * Read an address range from the flash chip.  The address range
++ * may be any size provided it is within the physical boundaries.
++ */
++static int ubicom32_flash_driver_read(struct mtd_info *mtd, loff_t from,
++				      size_t len, size_t *retlen, u_char *buf)
++{
++	struct m25p *flash = mtd_to_m25p(mtd);
++	u32 base_addr = UBICOM32_FLASH_BASE + from;
++
++	DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
++			flash->plt_dev->dev.bus_id, __FUNCTION__, "from",
++	      (u32)from, len);
++
++	/* sanity checks */
++	if (!len)
++		return 0;
++
++	if (from + len > flash->mtd.size)
++		return -EINVAL;
++
++	/* Byte count starts at zero. */
++	if (retlen)
++		*retlen = 0;
++
++	mutex_lock(&flash->lock);
++
++	/* Wait till previous write/erase is done. */
++	if (wait_till_ready(flash)) {
++		/* REVISIT status return?? */
++		mutex_unlock(&flash->lock);
++		return 1;
++	}
++
++	mem_flash_read(base_addr, (void *)buf, len);
++
++	if (retlen)
++		*retlen = len;
++
++	mutex_unlock(&flash->lock);
++
++	return 0;
++}
++
++/*
++ * Write an address range to the flash chip.  Data must be written in
++ * FLASH_PAGESIZE chunks.  The address range may be any size provided
++ * it is within the physical boundaries.
++ */
++static int ubicom32_flash_driver_write(struct mtd_info *mtd, loff_t to,
++				       size_t len, size_t *retlen,
++				       const u_char *buf)
++{
++	struct m25p *flash = mtd_to_m25p(mtd);
++	u32 base_addr = UBICOM32_FLASH_BASE + to;
++	DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
++			flash->plt_dev->dev.bus_id, __FUNCTION__, "to",
++			(u32)to, len);
++
++	if (retlen)
++		*retlen = 0;
++
++	/* sanity checks */
++	if (!len)
++		return 0;
++
++	if (to + len > flash->mtd.size)
++		return -EINVAL;
++
++	mutex_lock(&flash->lock);
++
++	mem_flash_write(base_addr, (void *) buf, len);
++
++	/* Wait until finished previous write command. */
++	if (wait_till_ready(flash)) {
++		mutex_unlock(&flash->lock);
++		return 1;
++	}
++
++	if (retlen)
++		*retlen = len;
++
++	mutex_unlock(&flash->lock);
++	return 0;
++}
++
++
++/****************************************************************************/
++
++/*
++ * SPI device driver setup and teardown
++ */
++
++struct flash_info {
++	char		*name;
++
++	/* JEDEC id zero means "no ID" (most older chips); otherwise it has
++	 * a high byte of zero plus three data bytes: the manufacturer id,
++	 * then a two byte device id.
++	 */
++	u32		jedec_id;
++
++	/* The size listed here is what works with OPCODE_SE, which isn't
++	 * necessarily called a "sector" by the vendor.
++	 */
++	unsigned	sector_size;
++	u16		n_sectors;
++
++	u16		flags;
++#define	SECT_4K		0x01		/* OPCODE_BE_4K works uniformly */
++};
++
++
++/* NOTE: double check command sets and memory organization when you add
++ * more flash chips.  This current list focusses on newer chips, which
++ * have been converging on command sets which including JEDEC ID.
++ */
++static struct flash_info __devinitdata m25p_data[] = {
++
++	/* Atmel -- some are (confusingly) marketed as "DataFlash" */
++	{ "at25fs010",  0x1f6601, 32 * 1024, 4, SECT_4K, },
++	{ "at25fs040",  0x1f6604, 64 * 1024, 8, SECT_4K, },
++
++	{ "at25df041a", 0x1f4401, 64 * 1024, 8, SECT_4K, },
++
++	{ "at26f004",   0x1f0400, 64 * 1024, 8, SECT_4K, },
++	{ "at26df081a", 0x1f4501, 64 * 1024, 16, SECT_4K, },
++	{ "at26df161a", 0x1f4601, 64 * 1024, 32, SECT_4K, },
++	{ "at26df321",  0x1f4701, 64 * 1024, 64, SECT_4K, },
++
++	/* Spansion -- single (large) sector size only, at least
++	 * for the chips listed here (without boot sectors).
++	 */
++	{ "s25sl004a", 0x010212, 64 * 1024, 8, },
++	{ "s25sl008a", 0x010213, 64 * 1024, 16, },
++	{ "s25sl016a", 0x010214, 64 * 1024, 32, },
++	{ "s25sl032a", 0x010215, 64 * 1024, 64, },
++	{ "s25sl064a", 0x010216, 64 * 1024, 128, },
++
++	/* SST -- large erase sizes are "overlays", "sectors" are 4K */
++	{ "sst25vf040b", 0xbf258d, 64 * 1024, 8, SECT_4K, },
++	{ "sst25vf080b", 0xbf258e, 64 * 1024, 16, SECT_4K, },
++	{ "sst25vf016b", 0xbf2541, 64 * 1024, 32, SECT_4K, },
++	{ "sst25vf032b", 0xbf254a, 64 * 1024, 64, SECT_4K, },
++
++	/* ST Microelectronics -- newer production may have feature updates */
++	{ "m25p05",  0x202010,  32 * 1024, 2, },
++	{ "m25p10",  0x202011,  32 * 1024, 4, },
++	{ "m25p20",  0x202012,  64 * 1024, 4, },
++	{ "m25p40",  0x202013,  64 * 1024, 8, },
++	{ "m25p80",         0,  64 * 1024, 16, },
++	{ "m25p16",  0x202015,  64 * 1024, 32, },
++	{ "m25p32",  0x202016,  64 * 1024, 64, },
++	{ "m25p64",  0x202017,  64 * 1024, 128, },
++	{ "m25p128", 0x202018, 256 * 1024, 64, },
++
++	{ "m45pe80", 0x204014,  64 * 1024, 16, },
++	{ "m45pe16", 0x204015,  64 * 1024, 32, },
++
++	{ "m25pe80", 0x208014,  64 * 1024, 16, },
++	{ "m25pe16", 0x208015,  64 * 1024, 32, SECT_4K, },
++
++	/* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */
++	{ "w25x10", 0xef3011, 64 * 1024, 2, SECT_4K, },
++	{ "w25x20", 0xef3012, 64 * 1024, 4, SECT_4K, },
++	{ "w25x40", 0xef3013, 64 * 1024, 8, SECT_4K, },
++	{ "w25x80", 0xef3014, 64 * 1024, 16, SECT_4K, },
++	{ "w25x16", 0xef3015, 64 * 1024, 32, SECT_4K, },
++	{ "w25x32", 0xef3016, 64 * 1024, 64, SECT_4K, },
++	{ "w25x64", 0xef3017, 64 * 1024, 128, SECT_4K, },
++
++	/* Macronix -- mx25lxxx */ 
++	{ "mx25l32",  0xc22016, 64 * 1024,  64, }, 
++	{ "mx25l64",  0xc22017, 64 * 1024, 128, }, 
++	{ "mx25l128", 0xc22018, 64 * 1024, 256, },
++
++};
++
++struct flash_info *__devinit jedec_probe(struct platform_device *spi)
++{
++	int			tmp;
++	u32			jedec;
++	struct flash_info	*info;
++	struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++
++	/*
++	 * Setup and run RDID command on the flash.
++	 */
++	io->ctl1 &= ~IO_XFL_CTL1_MASK;
++	io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) |
++		IO_XFL_CTL1_FC_DATA(3);
++	io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_RDID);
++	FLASH_COMMAND_EXEC(io);
++
++	jedec = io->status1 & 0x00ffffff;
++
++	for (tmp = 0, info = m25p_data;
++			tmp < ARRAY_SIZE(m25p_data);
++			tmp++, info++) {
++		if (info->jedec_id == jedec)
++			return info;
++	}
++	dev_err(&spi->dev, "unrecognized JEDEC id %06x\n", jedec);
++	return NULL;
++}
++
++
++/*
++ * board specific setup should have ensured the SPI clock used here
++ * matches what the READ command supports, at least until this driver
++ * understands FAST_READ (for clocks over 25 MHz).
++ */
++static int __devinit ubicom32_flash_probe(struct platform_device *spi)
++{
++	struct flash_platform_data	*data;
++	struct m25p			*flash;
++	struct flash_info		*info;
++	unsigned			i;
++
++	/* Platform data helps sort out which chip type we have, as
++	 * well as how this board partitions it.  If we don't have
++	 * a chip ID, try the JEDEC id commands; they'll work for most
++	 * newer chips, even if we don't recognize the particular chip.
++	 */
++	data = spi->dev.platform_data;
++	if (data && data->type) {
++		for (i = 0, info = m25p_data;
++				i < ARRAY_SIZE(m25p_data);
++				i++, info++) {
++			if (strcmp(data->type, info->name) == 0)
++				break;
++		}
++
++		/* unrecognized chip? */
++		if (i == ARRAY_SIZE(m25p_data)) {
++			DEBUG(MTD_DEBUG_LEVEL0, "%s: unrecognized id %s\n",
++					spi->dev.bus_id, data->type);
++			info = NULL;
++
++		/* recognized; is that chip really what's there? */
++		} else if (info->jedec_id) {
++			struct flash_info	*chip = jedec_probe(spi);
++
++			if (!chip || chip != info) {
++				dev_warn(&spi->dev, "found %s, expected %s\n",
++						chip ? chip->name : "UNKNOWN",
++						info->name);
++				info = NULL;
++			}
++		}
++	} else
++		info = jedec_probe(spi);
++
++	if (!info)
++		return -ENODEV;
++
++	flash = kzalloc(sizeof *flash, GFP_KERNEL);
++	if (!flash)
++		return -ENOMEM;
++
++	flash->plt_dev = spi;
++	mutex_init(&flash->lock);
++	dev_set_drvdata(&spi->dev, flash);
++
++	if (data && data->name)
++		flash->mtd.name = data->name;
++	else
++		flash->mtd.name = spi->dev.bus_id;
++
++	flash->mtd.type = MTD_NORFLASH;
++	flash->mtd.writesize = 1;
++	flash->mtd.flags = MTD_CAP_NORFLASH;
++	flash->mtd.size = info->sector_size * info->n_sectors;
++	flash->mtd.erase = ubicom32_flash_driver_erase;
++	flash->mtd.read = ubicom32_flash_driver_read;
++	flash->mtd.write = ubicom32_flash_driver_write;
++
++	/* prefer "small sector" erase if possible */
++	/*
++ 	 * The Ubicom erase code does not use the opcode for smaller sectors,
++	 * so disable that functionality and keep erasesize == sector_size
++	 * so that the test in ubicom32_flash_driver_erase works properly.
++	 *
++	 * This was: `if (info->flags & SECT_4K) {' instead of `if (0) {'
++	 */
++	if (0) {
++		flash->erase_opcode = OPCODE_BE_4K;
++		flash->mtd.erasesize = 4096;
++	} else {
++		flash->erase_opcode = OPCODE_SE;
++		flash->mtd.erasesize = info->sector_size;
++	}
++
++	dev_info(&spi->dev, "%s (%d Kbytes)\n", info->name,
++			flash->mtd.size / 1024);
++
++	DEBUG(MTD_DEBUG_LEVEL2,
++		"mtd .name = %s, .size = 0x%.8x (%uMiB) "
++			".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n",
++		flash->mtd.name,
++		flash->mtd.size, flash->mtd.size / (1024*1024),
++		flash->mtd.erasesize, flash->mtd.erasesize / 1024,
++		flash->mtd.numeraseregions);
++
++	if (flash->mtd.numeraseregions)
++		for (i = 0; i < flash->mtd.numeraseregions; i++)
++			DEBUG(MTD_DEBUG_LEVEL2,
++				"mtd.eraseregions[%d] = { .offset = 0x%.8x, "
++				".erasesize = 0x%.8x (%uKiB), "
++				".numblocks = %d }\n",
++				i, flash->mtd.eraseregions[i].offset,
++				flash->mtd.eraseregions[i].erasesize,
++				flash->mtd.eraseregions[i].erasesize / 1024,
++				flash->mtd.eraseregions[i].numblocks);
++
++
++	/* partitions should match sector boundaries; and it may be good to
++	 * use readonly partitions for writeprotected sectors (BP2..BP0).
++	 */
++	if (mtd_has_partitions()) {
++		struct mtd_partition	*parts = NULL;
++		int			nr_parts = 0;
++
++#ifdef CONFIG_MTD_CMDLINE_PARTS
++		static const char *part_probes[] = { "cmdlinepart", NULL, };
++
++		nr_parts = parse_mtd_partitions(&flash->mtd,
++				part_probes, &parts, 0);
++#endif
++
++		if (nr_parts <= 0 && data && data->parts) {
++			parts = data->parts;
++			nr_parts = data->nr_parts;
++			if (nr_parts >= 2) {
++				/*
++				 * Set last partition size to be 1M.
++				 */
++				parts[1].size = flash->mtd.size - 
++					parts[0].size - JFFS2_FILESYSTEM_SIZE;
++				parts[2].size = JFFS2_FILESYSTEM_SIZE;
++			}
++		}
++
++		if (nr_parts > 0) {
++			for (i = 0; i < nr_parts; i++) {
++				DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = "
++					"{.name = %s, .offset = 0x%.8x, "
++						".size = 0x%.8x (%uKiB) }\n",
++					i, parts[i].name,
++					parts[i].offset,
++					parts[i].size,
++					parts[i].size / 1024);
++			}
++			flash->partitioned = 1;
++			return add_mtd_partitions(&flash->mtd, parts, nr_parts);
++		}
++	} else if (data->nr_parts)
++		dev_warn(&spi->dev, "ignoring %d default partitions on %s\n",
++				data->nr_parts, data->name);
++
++	return add_mtd_device(&flash->mtd) == 1 ? -ENODEV : 0;
++}
++
++
++static int __devexit ubicom32_flash_remove(struct spi_device *spi)
++{
++	struct m25p	*flash = dev_get_drvdata(&spi->dev);
++	int		status;
++
++	/* Clean up MTD stuff. */
++	if (mtd_has_partitions() && flash->partitioned)
++		status = del_mtd_partitions(&flash->mtd);
++	else
++		status = del_mtd_device(&flash->mtd);
++	if (status == 0)
++		kfree(flash);
++	return 0;
++}
++
++static struct platform_driver ubicom32_flash_driver = {
++	.driver = {
++		.name	= "ubicom32flashdriver",
++		.bus	= &platform_bus_type,
++		.owner	= THIS_MODULE,
++	},
++	.probe	= ubicom32_flash_probe,
++	.remove	= NULL,
++};
++
++static int ubicom32_flash_driver_init(void)
++{
++	return platform_driver_register(&ubicom32_flash_driver);
++}
++
++
++static void ubicom32_flash_driver_exit(void)
++{
++	platform_driver_unregister(&ubicom32_flash_driver);
++}
++
++
++module_init(ubicom32_flash_driver_init);
++module_exit(ubicom32_flash_driver_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Mike Lavender");
++MODULE_DESCRIPTION("Ubicom32 MTD SPI driver for ST M25Pxx flash chips");
+--- a/drivers/net/Kconfig
++++ b/drivers/net/Kconfig
+@@ -2463,6 +2463,25 @@ config JME
+ 	  To compile this driver as a module, choose M here. The module
+ 	  will be called jme.
+ 
++config UBICOM32_GMAC
++	tristate "Ubicom Gigabit Ethernet support (EXPERIMENTAL)"
++	depends on UBICOM32
++	help
++	  Gigabit Ethernet support for IP5K/IP7K
++
++config UBICOM32_NAPI
++	bool  "USE NAPI (EXPERIMENTAL)"
++	depends on UBICOM32_GMAC
++	help
++	  Use NAPI for Ubicom's Ethernet driver
++
++config UBICOM32_OCM_FOR_SKB
++        bool  "USE OCM for SKB (EXPERIMENTAL)"
++        depends on UBICOM32_GMAC
++	default n
++        help
++          Allocate skb from OCM for Ethernet Receive
++
+ endif # NETDEV_1000
+ 
+ #
+--- a/drivers/net/Makefile
++++ b/drivers/net/Makefile
+@@ -262,4 +262,4 @@ obj-$(CONFIG_NETXEN_NIC) += netxen/
+ obj-$(CONFIG_NIU) += niu.o
+ obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
+ obj-$(CONFIG_SFC) += sfc/
+-
++obj-$(CONFIG_UBICOM32_GMAC) += ubi32-eth.o
+--- /dev/null
++++ b/drivers/net/ubi32-eth.c
+@@ -0,0 +1,699 @@
++/*
++ * drivers/net/ubi32-eth.c
++ *   Ubicom32 ethernet TIO interface driver.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++/*
++ * ubi32_eth.c
++ * Ethernet driver for Ip5k/Ip7K
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/moduleparam.h>
++
++#include <linux/sched.h>
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/errno.h>
++#include <linux/types.h>
++#include <linux/interrupt.h>
++
++#include <linux/in.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/if_vlan.h>
++#include <linux/ip.h>
++#include <linux/tcp.h>
++#include <linux/skbuff.h>
++#include <asm/checksum.h>
++#include "ubi32-eth.h"
++#include <asm/ip5000.h>
++#include <asm/devtree.h>
++#include <asm/system.h>
++
++/* #define USE_POLLING */
++
++/*
++ * TODO:
++ * mac address from flash
++ * multicast filter
++ * ethtool support
++ * sysfs support
++ * skb->nrfrag support
++ * ioctl
++ * monitor phy status
++ */
++
++static const char *eth_if_name[UBI32_ETH_NUM_OF_DEVICES] =
++	{"eth_lan", "eth_wan", "eth_ultra"};
++static struct net_device *ubi32_eth_devices[UBI32_ETH_NUM_OF_DEVICES] =
++	{NULL, NULL, NULL};
++static u8_t mac_addr[UBI32_ETH_NUM_OF_DEVICES][ETH_ALEN] = {
++	{0x00, 0x03, 0x64, 'l', 'a', 'n'},
++	{0x00, 0x03, 0x64, 'w', 'a', 'n'},
++	{0x00, 0x03, 0x64, 'u', 'l', 't'}};
++
++int ubi32_eth_ocm_alloc;
++int ubi32_eth_ddr_alloc;
++
++static inline struct sk_buff *ubi32_alloc_skb(struct net_device *dev, unsigned int length)
++{
++#if (defined(CONFIG_ZONE_DMA) && defined(CONFIG_UBICOM32_OCM_FOR_SKB))
++	struct sk_buff *sk_buff;
++
++	if (dev != ubi32_eth_devices[0])
++		return __dev_alloc_skb(length, GFP_ATOMIC);
++
++	sk_buff = __dev_alloc_skb(length, GFP_ATOMIC | __GFP_NOWARN | __GFP_NORETRY | GFP_DMA);
++	if (sk_buff) {
++		ubi32_eth_ocm_alloc++;
++		return sk_buff;
++	} else {
++		ubi32_eth_ddr_alloc++;
++		return __dev_alloc_skb(length, GFP_ATOMIC);
++	}
++#else
++	return __dev_alloc_skb(length, GFP_ATOMIC);
++#endif
++}
++
++static void ubi32_eth_vp_rxtx_enable(struct net_device *dev)
++{
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++	priv->regs->command = UBI32_ETH_VP_CMD_RX_ENABLE | UBI32_ETH_VP_CMD_TX_ENABLE;
++	priv->regs->int_mask = (UBI32_ETH_VP_INT_RX | UBI32_ETH_VP_INT_TX);
++	ubicom32_set_interrupt(priv->vp_int_bit);
++}
++
++static void ubi32_eth_vp_rxtx_stop(struct net_device *dev)
++{
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++	priv->regs->command = 0;
++	priv->regs->int_mask = 0;
++	ubicom32_set_interrupt(priv->vp_int_bit);
++
++	/* Wait for graceful shutdown */
++	while (priv->regs->status & (UBI32_ETH_VP_STATUS_RX_STATE | UBI32_ETH_VP_STATUS_TX_STATE));
++}
++
++/*
++ * ubi32_eth_tx_done()
++ */
++static int ubi32_eth_tx_done(struct net_device *dev)
++{
++	struct ubi32_eth_private *priv;
++	struct sk_buff *skb;
++	volatile void *pdata;
++	struct ubi32_eth_dma_desc *desc;
++	u32_t 	count = 0;
++
++	priv = netdev_priv(dev);
++
++ 	priv->regs->int_status &= ~UBI32_ETH_VP_INT_TX;
++	while (priv->tx_tail != priv->regs->tx_out) {
++		pdata = priv->regs->tx_dma_ring[priv->tx_tail];
++		BUG_ON(pdata == NULL);
++
++		skb = container_of((void *)pdata, struct sk_buff, cb);
++		desc = (struct ubi32_eth_dma_desc *)pdata;
++		if (unlikely(!(desc->status & UBI32_ETH_VP_TX_OK))) {
++			atomic_inc((atomic_t *)&priv->stats.tx_errors);
++		} else {
++			priv->stats.tx_packets++;
++			priv->stats.tx_bytes += skb->len;
++		}
++		dev_kfree_skb_any(skb);
++		priv->regs->tx_dma_ring[priv->tx_tail] = NULL;
++		priv->tx_tail = (priv->tx_tail + 1) & TX_DMA_RING_MASK;
++		count++;
++	}
++
++	if (unlikely(priv->status & UBI32_ETH_PRIV_STATUS_TX_Q_FULL)) {
++		spin_lock(&priv->lock);
++		priv->status &= ~UBI32_ETH_PRIV_STATUS_TX_Q_FULL;
++		netif_wake_queue(dev);
++		spin_unlock(&priv->lock);
++	}
++	return count;
++}
++
++/*
++ * ubi32_eth_receive()
++ *	To avoid locking overhead, this is called only
++ *	by tasklet when not using NAPI, or
++ *	by NAPI poll when using NAPI.
++ *	return number of frames processed
++ */
++static int ubi32_eth_receive(struct net_device *dev, int quota)
++{
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++	unsigned short rx_in = priv->regs->rx_in;
++	struct sk_buff *skb;
++	struct ubi32_eth_dma_desc *desc = NULL;
++	volatile void *pdata;
++
++	/* The number of NET_SKB_PAD bytes are already reserved by skb */
++	int extra_reserve = UBI32_ETH_RESERVE_SPACE - NET_SKB_PAD + UBI32_ETH_RESERVE_EXTRA;
++	int extra_alloc = extra_reserve + UBI32_ETH_TRASHED_MEMORY;
++	int i, replenish_cnt, count = 0;
++	int replenish_max = RX_DMA_MAX_QUEUE_SIZE;
++#if (defined(CONFIG_ZONE_DMA) && defined(CONFIG_UBICOM32_OCM_FOR_SKB))
++	if (dev == ubi32_eth_devices[0])
++		replenish_max = 21;
++#endif
++	BUG_ON((extra_reserve & 3) != NET_IP_ALIGN);	/* Must provide NET_IP_ALIGN (0 or 2) */
++
++	if (unlikely(rx_in == priv->regs->rx_out))
++		priv->vp_stats.rx_q_full_cnt++;
++
++	priv->regs->int_status &= ~UBI32_ETH_VP_INT_RX;
++	while (priv->rx_tail != priv->regs->rx_out) {
++		if (unlikely(count == quota)) {
++			/* There is still frame pending to be processed */
++			priv->vp_stats.rx_throttle++;
++			break;
++		}
++
++		pdata = priv->regs->rx_dma_ring[priv->rx_tail];
++		BUG_ON(pdata == NULL);
++
++		desc = (struct ubi32_eth_dma_desc *)pdata;
++		skb = container_of((void *)pdata, struct sk_buff, cb);
++		count++;
++		priv->regs->rx_dma_ring[priv->rx_tail] = NULL;
++		priv->rx_tail = ((priv->rx_tail + 1) & RX_DMA_RING_MASK);
++
++		/*
++		 * Check only RX_OK bit here.
++		 * The rest of status word is used as timestamp
++		 */
++		if (unlikely(!(desc->status & UBI32_ETH_VP_RX_OK))) {
++			priv->stats.rx_errors++;
++			dev_kfree_skb_any(skb);
++			continue;
++		}
++
++		skb_put(skb, desc->data_len);
++		skb->dev = dev;
++		skb->protocol = eth_type_trans(skb, dev);
++		skb->ip_summed = CHECKSUM_NONE;
++		priv->stats.rx_bytes += skb->len;
++		priv->stats.rx_packets++;
++#ifndef CONFIG_UBICOM32_NAPI
++		netif_rx(skb);
++#else
++		netif_receive_skb(skb);
++#endif
++	}
++
++	/* fill in more descripor for VP*/
++	replenish_cnt =  replenish_max -
++		((RX_DMA_RING_SIZE + rx_in - priv->rx_tail) & RX_DMA_RING_MASK);
++	if (replenish_cnt > 0) {
++		for (i = 0; i < replenish_cnt; i++) {
++			skb = ubi32_alloc_skb(dev, RX_BUF_SIZE + extra_alloc);
++			if (!skb) {
++				priv->vp_stats.rx_alloc_err++;
++				break;
++			}
++			/* set up dma descriptor */
++			desc = (struct ubi32_eth_dma_desc *)skb->cb;
++			skb_reserve(skb, extra_reserve);
++			BUG_ON((((u32)skb->data + ETH_HLEN) & (CACHE_LINE_SIZE - 1)) != 0);
++			desc->data_pointer = skb->data;
++			desc->buffer_len = RX_BUF_SIZE + UBI32_ETH_TRASHED_MEMORY;
++			desc->data_len = 0;
++			desc->status = 0;
++			priv->regs->rx_dma_ring[rx_in] = desc;
++			rx_in = (rx_in + 1) & RX_DMA_RING_MASK;
++		}
++		wmb();
++		priv->regs->rx_in = rx_in;
++		ubicom32_set_interrupt(priv->vp_int_bit);
++	}
++
++	if (likely(count > 0)) {
++		dev->last_rx = jiffies;
++	}
++	return count;
++}
++
++#ifdef CONFIG_UBICOM32_NAPI
++static int ubi32_eth_napi_poll(struct napi_struct *napi, int budget)
++{
++	struct ubi32_eth_private *priv = container_of(napi, struct ubi32_eth_private, napi);
++	struct net_device *dev = priv->dev;
++	u32_t count;
++
++	if (priv->tx_tail != priv->regs->tx_out) {
++                ubi32_eth_tx_done(dev);
++        }
++
++	count = ubi32_eth_receive(dev, budget);
++
++	priv->regs->int_mask |= (UBI32_ETH_VP_INT_RX | UBI32_ETH_VP_INT_TX);
++	if (count < budget) {
++		netif_rx_complete(dev, napi);
++		if ((priv->rx_tail != priv->regs->rx_out) || (priv->tx_tail != priv->regs->tx_out)) {
++			if (netif_rx_reschedule(dev, napi)) {
++				priv->regs->int_mask = 0;
++			}
++		}
++	}
++	return count;
++}
++
++#else
++static void ubi32_eth_do_tasklet(unsigned long arg)
++{
++	struct net_device *dev = (struct net_device *)arg;
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++
++	if (priv->tx_tail != priv->regs->tx_out) {
++		ubi32_eth_tx_done(dev);
++	}
++
++	/* always call receive to process new RX frame as well as replenish RX buffers */
++	ubi32_eth_receive(dev, RX_BOUND);
++
++	priv->regs->int_mask |= (UBI32_ETH_VP_INT_RX | UBI32_ETH_VP_INT_TX);
++	if ((priv->rx_tail != priv->regs->rx_out) || (priv->tx_tail != priv->regs->tx_out)) {
++		priv->regs->int_mask = 0;
++		tasklet_schedule(&priv->tsk);
++	}
++}
++#endif
++
++#if defined(USE_POLLING)
++static struct timer_list eth_poll_timer;
++
++static void ubi32_eth_poll(unsigned long arg)
++{
++	struct net_device *dev;
++	struct ubi32_eth_private *priv;
++	int i;
++
++	for (i = 0; i < UBI32_ETH_NUM_OF_DEVICES; i++) {
++		dev = ubi32_eth_devices[i];
++		if (dev && (dev->flags & IFF_UP)) {
++			priv = netdev_priv(dev);
++#ifdef CONFIG_UBICOM32_NAPI
++			netif_rx_schedule(dev, &priv->napi);
++#else
++			tasklet_schedule(&priv->tsk);
++#endif
++		}
++	}
++
++	eth_poll_timer.expires = jiffies + 2;
++	add_timer(&eth_poll_timer);
++}
++
++#else
++static irqreturn_t ubi32_eth_interrupt(int irq, void *dev_id)
++{
++	struct ubi32_eth_private *priv;
++
++	struct net_device *dev = (struct net_device *)dev_id;
++	BUG_ON(irq != dev->irq);
++
++	priv = netdev_priv(dev);
++	if (unlikely(!(priv->regs->int_status & priv->regs->int_mask))) {
++		return IRQ_NONE;
++	}
++
++	/*
++	 * Disable port interrupt
++	 */
++#ifdef CONFIG_UBICOM32_NAPI
++	if (netif_rx_schedule_prep(dev, &priv->napi)) {
++		priv->regs->int_mask = 0;
++		__netif_rx_schedule(dev, &priv->napi);
++	}
++#else
++	priv->regs->int_mask = 0;
++	tasklet_schedule(&priv->tsk);
++#endif
++	return IRQ_HANDLED;
++}
++#endif
++
++/*
++ * ubi32_eth_open
++ */
++static int ubi32_eth_open(struct net_device *dev)
++{
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++	int err;
++
++	printk(KERN_INFO "eth open %s\n",dev->name);
++#ifndef USE_POLLING
++	/* request_region() */
++	err = request_irq(dev->irq, ubi32_eth_interrupt, IRQF_DISABLED, dev->name, dev);
++	if (err) {
++		printk(KERN_WARNING "fail to request_irq %d\n",err);
++		 return -ENODEV;
++	}
++#endif
++#ifdef  CONFIG_UBICOM32_NAPI
++	napi_enable(&priv->napi);
++#else
++	tasklet_init(&priv->tsk, ubi32_eth_do_tasklet, (unsigned long)dev);
++#endif
++
++	/* call receive to supply RX buffers */
++	ubi32_eth_receive(dev, RX_DMA_MAX_QUEUE_SIZE);
++
++	/* check phy status and call netif_carrier_on */
++	ubi32_eth_vp_rxtx_enable(dev);
++	netif_start_queue(dev);
++	return 0;
++}
++
++static int ubi32_eth_close(struct net_device *dev)
++{
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++	volatile void *pdata;
++	struct sk_buff *skb;
++
++#ifndef USE_POLLING
++	free_irq(dev->irq, dev);
++#endif
++	netif_stop_queue(dev); /* can't transmit any more */
++#ifdef CONFIG_UBICOM32_NAPI
++	napi_disable(&priv->napi);
++#else
++	tasklet_kill(&priv->tsk);
++#endif
++	ubi32_eth_vp_rxtx_stop(dev);
++
++	/*
++	 * RX clean up
++	 */
++	while (priv->rx_tail != priv->regs->rx_in) {
++		pdata = priv->regs->rx_dma_ring[priv->rx_tail];
++		skb = container_of((void *)pdata, struct sk_buff, cb);
++		priv->regs->rx_dma_ring[priv->rx_tail] = NULL;
++		dev_kfree_skb_any(skb);
++		priv->rx_tail = ((priv->rx_tail + 1) & RX_DMA_RING_MASK);
++	}
++	priv->regs->rx_in = 0;
++	priv->regs->rx_out = priv->regs->rx_in;
++	priv->rx_tail = priv->regs->rx_in;
++
++	/*
++	 * TX clean up
++	 */
++	BUG_ON(priv->regs->tx_out != priv->regs->tx_in);
++	ubi32_eth_tx_done(dev);
++	BUG_ON(priv->tx_tail != priv->regs->tx_in);
++	priv->regs->tx_in = 0;
++	priv->regs->tx_out = priv->regs->tx_in;
++	priv->tx_tail = priv->regs->tx_in;
++
++	return 0;
++}
++
++/*
++ * ubi32_eth_set_config
++ */
++static int ubi32_eth_set_config(struct net_device *dev, struct ifmap *map)
++{
++	/* if must to down to config it */
++	printk(KERN_INFO "set_config %x\n", dev->flags);
++	if (dev->flags & IFF_UP)
++		return -EBUSY;
++
++	/* I/O and IRQ can not be changed */
++	if (map->base_addr != dev->base_addr) {
++		printk(KERN_WARNING "%s: Can't change I/O address\n", dev->name);
++		return -EOPNOTSUPP;
++	}
++
++#ifndef USE_POLLING
++	if (map->irq != dev->irq) {
++		printk(KERN_WARNING "%s: Can't change IRQ\n", dev->name);
++		return -EOPNOTSUPP;
++	}
++#endif
++
++	/* ignore other fields */
++	return 0;
++}
++
++static int ubi32_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
++{
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++	struct ubi32_eth_dma_desc *desc = NULL;
++	unsigned short space, tx_in;
++
++	tx_in = priv->regs->tx_in;
++
++	dev->trans_start = jiffies; /* save the timestamp */
++	space = TX_DMA_RING_MASK - ((TX_DMA_RING_SIZE + tx_in - priv->tx_tail) & TX_DMA_RING_MASK);
++
++	if (unlikely(space == 0)) {
++		atomic_inc((atomic_t *)&priv->stats.tx_errors);
++		if (!(priv->status & UBI32_ETH_PRIV_STATUS_TX_Q_FULL)) {
++			spin_lock(&priv->lock);
++			priv->status |= UBI32_ETH_PRIV_STATUS_TX_Q_FULL;
++			priv->vp_stats.tx_q_full_cnt++;
++			netif_stop_queue(dev);
++			spin_unlock(&priv->lock);
++		}
++
++		/* give both HW and this driver an extra trigger */
++		priv->regs->int_mask |= UBI32_ETH_VP_INT_TX;
++#ifndef USE_POLLING
++		ubicom32_set_interrupt(dev->irq);
++#endif
++		ubicom32_set_interrupt(priv->vp_int_bit);
++
++		return NETDEV_TX_BUSY;
++	}
++
++	/*still have room */
++	desc = (struct ubi32_eth_dma_desc *)skb->cb;
++	desc->data_pointer = skb->data;
++	desc->data_len = skb->len;
++	priv->regs->tx_dma_ring[tx_in] = desc;
++	tx_in = ((tx_in + 1) & TX_DMA_RING_MASK);
++	wmb();
++	priv->regs->tx_in = tx_in;
++	/* kick the HRT */
++	ubicom32_set_interrupt(priv->vp_int_bit);
++
++	return 0;
++}
++
++/*
++ * Deal with a transmit timeout.
++ */
++static void ubi32_eth_tx_timeout (struct net_device *dev)
++{
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++	atomic_inc((atomic_t *)&priv->stats.tx_errors);
++	priv->regs->int_mask |= UBI32_ETH_VP_INT_TX;
++#ifndef USE_POLLING
++	ubicom32_set_interrupt(dev->irq);
++#endif
++	ubicom32_set_interrupt(priv->vp_int_bit);
++}
++
++static int ubi32_eth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
++{
++	printk(KERN_INFO "ioctl %s, %d\n", dev->name, cmd);
++	return -EINVAL;
++}
++
++/*
++ * Return statistics to the caller
++ */
++static struct net_device_stats *ubi32_eth_get_stats(struct net_device *dev)
++{
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++	return &priv->stats;
++}
++
++
++static int ubi32_eth_change_mtu(struct net_device *dev, int new_mtu)
++{
++	struct ubi32_eth_private *priv = netdev_priv(dev);
++	unsigned long flags;
++
++	if ((new_mtu < 68) || (new_mtu > 1500))
++		return -EINVAL;
++
++	spin_lock_irqsave(&priv->lock, flags);
++	dev->mtu = new_mtu;
++	spin_unlock_irqrestore(&priv->lock, flags);
++	printk(KERN_INFO "set mtu to %d", new_mtu);
++	return 0;
++}
++
++/*
++ * ubi32_eth_cleanup: unload the module
++ */
++void ubi32_eth_cleanup(void)
++{
++	struct ubi32_eth_private *priv;
++	struct net_device *dev;
++	int i;
++
++	for (i = 0; i < UBI32_ETH_NUM_OF_DEVICES; i++) {
++		dev = ubi32_eth_devices[i];
++		if (dev) {
++			priv = netdev_priv(dev);
++			kfree(priv->regs->tx_dma_ring);
++			unregister_netdev(dev);
++			free_netdev(dev);
++			ubi32_eth_devices[i] = NULL;
++		}
++	}
++}
++
++int ubi32_eth_init_module(void)
++{
++	struct ethtionode *eth_node;
++ 	struct net_device *dev;
++	struct ubi32_eth_private *priv;
++	int i, err;
++
++	/*
++	 * Device allocation.
++	 */
++	err = 0;
++	for (i = 0; i < UBI32_ETH_NUM_OF_DEVICES; i++) {
++		/*
++		 * See if the eth_vp is in the device tree.
++		 */
++		eth_node = (struct ethtionode *)devtree_find_node(eth_if_name[i]);
++		if (!eth_node) {
++			printk(KERN_INFO "%s does not exist\n", eth_if_name[i]);
++			continue;
++		}
++
++		eth_node->tx_dma_ring = (struct ubi32_eth_dma_desc **)kmalloc(
++				sizeof(struct ubi32_eth_dma_desc *) *
++				(TX_DMA_RING_SIZE + RX_DMA_RING_SIZE), GFP_ATOMIC | __GFP_NOWARN | __GFP_NORETRY | GFP_DMA);
++
++		if (eth_node->tx_dma_ring == NULL) {
++			eth_node->tx_dma_ring = (struct ubi32_eth_dma_desc **)kmalloc(
++				sizeof(struct ubi32_eth_dma_desc *) *
++				(TX_DMA_RING_SIZE + RX_DMA_RING_SIZE), GFP_KERNEL);
++			printk(KERN_INFO "Failed to allocate from OCM\n");
++		}
++
++		if (!eth_node->tx_dma_ring) {
++			err = -ENOMEM;
++			break;
++		}
++		eth_node->rx_dma_ring = eth_node->tx_dma_ring + TX_DMA_RING_SIZE;
++		eth_node->tx_sz = TX_DMA_RING_SIZE - 1;
++		eth_node->rx_sz = RX_DMA_RING_SIZE - 1;
++
++		dev = alloc_etherdev(sizeof(struct ubi32_eth_private));
++		if (!dev) {
++			kfree(eth_node->tx_dma_ring);
++			err = -ENOMEM;
++			break;
++		}
++		priv = netdev_priv(dev);
++		priv->dev = dev;
++
++		/*
++		 * FIX IT! get proper mac address
++		 */
++		memcpy(dev->dev_addr, mac_addr[i], ETH_ALEN);
++
++		priv->regs = eth_node;
++		priv->regs->command = 0;
++		priv->regs->int_mask = 0;
++		priv->regs->int_status = 0;
++		priv->regs->tx_out = 0;
++		priv->regs->rx_out = 0;
++		priv->regs->tx_in = 0;
++		priv->regs->rx_in = 0;
++		priv->rx_tail = 0;
++		priv->tx_tail = 0;
++
++		priv->vp_int_bit = eth_node->dn.sendirq;
++		dev->irq = eth_node->dn.recvirq;
++
++		spin_lock_init(&priv->lock);
++
++		dev->open		= ubi32_eth_open;
++		dev->stop		= ubi32_eth_close;
++		dev->hard_start_xmit	= ubi32_eth_start_xmit;
++		dev->tx_timeout		= ubi32_eth_tx_timeout;
++		dev->watchdog_timeo	= UBI32_ETH_VP_TX_TIMEOUT;
++
++		dev->set_config		= ubi32_eth_set_config;
++		dev->do_ioctl		= ubi32_eth_ioctl;
++		dev->get_stats		= ubi32_eth_get_stats;
++		dev->change_mtu		= ubi32_eth_change_mtu;
++#ifdef CONFIG_UBICOM32_NAPI
++		netif_napi_add(dev, &priv->napi, ubi32_eth_napi_poll, UBI32_ETH_NAPI_WEIGHT);
++#endif
++		err = register_netdev(dev);
++		if (err) {
++			printk(KERN_WARNING "Failed to register netdev %s\n", eth_if_name[i]);
++			//release_region();
++			free_netdev(dev);
++			kfree(eth_node->tx_dma_ring);
++			break;
++		}
++
++		ubi32_eth_devices[i] = dev;
++		printk(KERN_INFO "%s vp_base:0x%p, tio_int:%d irq:%d\n",
++			dev->name, priv->regs, eth_node->dn.sendirq, dev->irq);
++	}
++
++	if (err) {
++		ubi32_eth_cleanup();
++		return err;
++	}
++
++	if (!ubi32_eth_devices[0] && !ubi32_eth_devices[1] && !ubi32_eth_devices[2]) {
++		return -ENODEV;
++	}
++
++#if defined(USE_POLLING)
++	init_timer(&eth_poll_timer);
++	eth_poll_timer.function = ubi32_eth_poll;
++	eth_poll_timer.data = (unsigned long)0;
++	eth_poll_timer.expires = jiffies + 2;
++	add_timer(&eth_poll_timer);
++#endif
++
++	return 0;
++}
++
++module_init(ubi32_eth_init_module);
++module_exit(ubi32_eth_cleanup);
++
++MODULE_AUTHOR("Kan Yan, Greg Ren");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/drivers/net/ubi32-eth.h
+@@ -0,0 +1,133 @@
++/*
++ * drivers/net/ubi32-eth.h
++ *   Ubicom32 ethernet TIO interface driver definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#ifndef _UBI32_ETH_H
++#define _UBI32_ETH_H
++
++#include <asm/devtree.h>
++
++#define UBI32_ETH_NUM_OF_DEVICES 3
++
++/*
++ * Number of bytes trashed beyond the packet data.
++ */
++#define UBI32_ETH_TRASHED_MEMORY	(CACHE_LINE_SIZE + ETH_HLEN - 1)
++
++/*
++ * Linux already reserves NET_SKB_PAD bytes of headroom in each sk_buff.
++ * We want to be able to reserve arbitrarily more space to align Ethernet
++ * and IP header to cache line.
++ * Note that the TIO expects a CACHE_LINE_SIZE - ETH_HLEN aligned Ethernet
++ * header, so the reserved space must be NET_SKB_PAD + NET_IP_ALIGN.
++ * (NET_SKB_PAD is 16, NET_IP_ALIGN is 2, CACHE_LINE_SIZE is 32).
++ * You can add more space by making UBI32_ETH_iRESERVE_EXTRA != 0.
++ */
++#define UBI32_ETH_RESERVE_SPACE	(CACHE_LINE_SIZE - ETH_HLEN)
++#define UBI32_ETH_RESERVE_EXTRA (1 * CACHE_LINE_SIZE)
++
++struct ubi32_eth_dma_desc {
++	volatile void 	*data_pointer;	/* pointer to the buffer */
++	volatile u16 	buffer_len;	/* the buffer size */
++	volatile u16	data_len;	/* actual frame length */
++	volatile u32	status;		/* bit0: status to be update by VP; bit[31:1] time stamp */
++};
++
++#define TX_DMA_RING_SIZE (1<<8)
++#define TX_DMA_RING_MASK (TX_DMA_RING_SIZE - 1)
++#define RX_DMA_RING_SIZE (1<<8)
++#define RX_DMA_RING_MASK (RX_DMA_RING_SIZE - 1)
++
++#define RX_DMA_MAX_QUEUE_SIZE (RX_DMA_RING_SIZE - 1)	/* no more than (RX_DMA_RING_SIZE - 1) */
++#define RX_MAX_PKT_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN)
++#define RX_MIN_PKT_SIZE	ETH_ZLEN
++#define RX_BUF_SIZE (RX_MAX_PKT_SIZE + VLAN_HLEN)	/* allow double VLAN tag */
++
++#define UBI32_ETH_VP_TX_TIMEOUT (10*HZ)
++
++struct ubi32_eth_vp_stats {
++	u32	rx_alloc_err;
++	u32	tx_q_full_cnt;
++	u32	rx_q_full_cnt;
++	u32	rx_throttle;
++};
++
++struct ubi32_eth_private {
++	struct net_device *dev;
++	struct net_device_stats stats;
++	struct ubi32_eth_vp_stats vp_stats;
++	int status;
++	spinlock_t lock;
++#ifdef CONFIG_UBICOM32_NAPI
++	struct napi_struct napi;
++#else
++	struct tasklet_struct tsk;
++#endif
++	struct ethtionode *regs;
++	u16	rx_tail;
++	u16	tx_tail;
++	u32	vp_int_bit;
++};
++
++struct ethtionode {
++	struct devtree_node dn;
++	volatile u16	command;
++	volatile u16	status;
++	volatile u16	int_mask;	/* interrupt mask */
++	volatile u16	int_status;	/* interrupt mask */
++	volatile u16	tx_in;		/* owned by driver */
++	volatile u16	tx_out;		/* owned by vp */
++	volatile u16	rx_in;		/* owned by driver */
++	volatile u16	rx_out;		/* owned by vp */
++	u16		tx_sz;		/* owned by driver */
++	u16		rx_sz;		/* owned by driver */
++	struct ubi32_eth_dma_desc **tx_dma_ring;
++	struct ubi32_eth_dma_desc **rx_dma_ring;
++};
++
++#define UBI32_ETH_VP_STATUS_LINK	(1<<0)
++#define UBI32_ETH_VP_STATUS_SPEED	(0x2<<1)
++#define UBI32_ETH_VP_STATUS_DUPLEX	(0x1<<3)
++#define UBI32_ETH_VP_STATUS_FLOW_CTRL	(0x1<<4)
++
++#define UBI32_ETH_VP_STATUS_RX_STATE	(0x1<<5)
++#define UBI32_ETH_VP_STATUS_TX_STATE	(0x1<<6)
++
++#define UBI32_ETH_PRIV_STATUS_TX_Q_FULL	(1<<0)
++
++#define UBI32_ETH_VP_INT_RX	(1<<0)
++#define UBI32_ETH_VP_INT_TX	(1<<1)
++
++#define UBI32_ETH_VP_CMD_RX_ENABLE	(1<<0)
++#define UBI32_ETH_VP_CMD_TX_ENABLE	(1<<1)
++
++#define UBI32_ETH_VP_RX_OK		(1<<0)
++#define UBI32_ETH_VP_TX_OK		(1<<1)
++
++#define TX_BOUND		TX_DMA_RING_SIZE
++#define RX_BOUND		64
++#define UBI32_ETH_NAPI_WEIGHT	64		/* for GigE */
++#endif
+--- a/drivers/net/usb/asix.c
++++ b/drivers/net/usb/asix.c
+@@ -318,14 +318,33 @@ static int asix_rx_fixup(struct usbnet *
+ 		/* get the packet length */
+ 		size = (u16) (header & 0x0000ffff);
+ 
+-		if ((skb->len) - ((size + 1) & 0xfffe) == 0)
++		if ((skb->len) - ((size + 1) & 0xfffe) == 0) {
++#ifndef HAVE_EFFICIENT_UNALIGNED_ACCESS
++			if (((u32)packet & 0x02) == 0) {
++				memmove(packet - 2, packet, size);
++				skb->data -= 2;
++				skb->tail -= 2;
++			}
++#endif
+ 			return 2;
++		}
++
+ 		if (size > ETH_FRAME_LEN) {
+ 			deverr(dev,"asix_rx_fixup() Bad RX Length %d", size);
+ 			return 0;
+ 		}
+ 		ax_skb = skb_clone(skb, GFP_ATOMIC);
+ 		if (ax_skb) {
++#ifndef HAVE_EFFICIENT_UNALIGNED_ACCESS
++			if (((u32)packet & 0x02) == 0) {
++				memmove(packet - 2, packet, size);
++				ax_skb->data = packet - 2;
++			} else {
++				ax_skb->data = packet;
++			}
++#else
++			ax_skb->data = packet;
++#endif
+ 			ax_skb->len = size;
+ 			ax_skb->data = packet;
+ 			skb_set_tail_pointer(ax_skb, size);
+@@ -1102,13 +1121,19 @@ static int ax88178_link_reset(struct usb
+ 	mode = AX88178_MEDIUM_DEFAULT;
+ 
+ 	if (ecmd.speed == SPEED_1000)
++#ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS
+ 		mode |= AX_MEDIUM_GM;
++#else
++		mode |= AX_MEDIUM_GM | AX_MEDIUM_ENCK;
++#endif
+ 	else if (ecmd.speed == SPEED_100)
+ 		mode |= AX_MEDIUM_PS;
+ 	else
+ 		mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM);
+ 
++#ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS
+ 	mode |= AX_MEDIUM_ENCK;
++#endif
+ 
+ 	if (ecmd.duplex == DUPLEX_FULL)
+ 		mode |= AX_MEDIUM_FD;
+--- a/drivers/oprofile/cpu_buffer.c
++++ b/drivers/oprofile/cpu_buffer.c
+@@ -240,10 +240,11 @@ static void oprofile_end_trace(struct op
+ 	cpu_buf->tracing = 0;
+ }
+ 
+-void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
+-				unsigned long event, int is_kernel)
++
++void oprofile_add_ext_sample_cpu(unsigned long pc, struct pt_regs * const regs,
++				unsigned long event, int is_kernel, int cpu)
+ {
+-	struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
++	struct oprofile_cpu_buffer *cpu_buf = &per_cpu(cpu_buffer, cpu);
+ 
+ 	if (!backtrace_depth) {
+ 		log_sample(cpu_buf, pc, is_kernel, event);
+@@ -260,6 +261,13 @@ void oprofile_add_ext_sample(unsigned lo
+ 	oprofile_end_trace(cpu_buf);
+ }
+ 
++void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
++				unsigned long event, int is_kernel)
++{
++	oprofile_add_ext_sample_cpu(pc, regs, event,
++					is_kernel, smp_processor_id());
++}
++
+ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
+ {
+ 	int is_kernel = !user_mode(regs);
+--- a/drivers/pci/Makefile
++++ b/drivers/pci/Makefile
+@@ -42,8 +42,8 @@ obj-$(CONFIG_PPC) += setup-bus.o
+ obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o
+ obj-$(CONFIG_X86_VISWS) += setup-irq.o
+ obj-$(CONFIG_MN10300) += setup-bus.o
++obj-$(CONFIG_UBICOM32) += setup-bus.o setup-irq.o
+ 
+-#
+ # ACPI Related PCI FW Functions
+ #
+ obj-$(CONFIG_ACPI)    += pci-acpi.o
+--- a/drivers/serial/Kconfig
++++ b/drivers/serial/Kconfig
+@@ -827,6 +827,57 @@ config SERIAL_UARTLITE_CONSOLE
+ 	  console (the system console is the device which receives all kernel
+ 	  messages and warnings and which allows logins in single user mode).
+ 
++config SERIAL_UBI32_UARTTIO
++        tristate "Ubicom UARTTIO support"
++        depends on UBICOM32=y
++        select SERIAL_CORE
++	default y
++        help
++          Add support for the Ubicom virtual peripherial serial interface.
++
++config SERIAL_UBI32_UARTTIO_NR_UARTS
++	int "Maximum number of UARTTIO virtual serial ports"
++	depends on SERIAL_UBI32_UARTTIO
++	default "4"
++	help
++	  Set this to the maximum number of serial ports you want the driver to support.  
++
++config SERIAL_UBI32_UARTTIO_CONSOLE
++        tristate "Ubicom UARTTIO console support"
++        depends on SERIAL_UBI32_UARTTIO=y
++        select SERIAL_CORE_CONSOLE
++	default y
++        help
++          Add support for console on the Ubicom virtual peripherial serial interface.
++
++config SERIAL_UBI32_SERDES
++        bool "Ubicom serial port support"
++        depends on UBICOM32=y
++        select SERIAL_CORE
++	default y
++        help
++          Add support for the Ubicom serial interface.
++
++config SERIAL_UBI32_SERDES_CONSOLE
++        bool "Ubicom serial console support"
++        depends on SERIAL_UBI32_SERDES=y
++        select SERIAL_CORE_CONSOLE
++	default y
++
++config SERIAL_UBI32_MAILBOX
++        bool "Ubicom mailbox support"
++        depends on UBICOM32=y
++        select SERIAL_CORE
++	default n
++        help
++          Add support for the Ubicom mailbox interface.
++
++config SERIAL_UBI32_MAILBOX_CONSOLE
++        bool "Ubicom mailbox console support"
++        depends on SERIAL_UBI32_MAILBOX=y
++        select SERIAL_CORE_CONSOLE
++	default y
++
+ config SERIAL_SUNCORE
+ 	bool
+ 	depends on SPARC
+--- a/drivers/serial/Makefile
++++ b/drivers/serial/Makefile
+@@ -73,3 +73,6 @@ obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_s
+ obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
+ obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o
+ obj-$(CONFIG_SERIAL_QE) += ucc_uart.o
++obj-$(CONFIG_SERIAL_UBI32_SERDES) += ubi32_serdes.o
++obj-$(CONFIG_SERIAL_UBI32_UARTTIO) += ubi32_uarttio.o
++obj-$(CONFIG_SERIAL_UBI32_MAILBOX) += ubi32_mailbox.o
+--- /dev/null
++++ b/drivers/serial/ubi32_mailbox.c
+@@ -0,0 +1,928 @@
++/*
++ * drivers/serial/ubi32_mailbox.c
++ *   Ubicom32 On-Chip Mailbox Driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/ioport.h>
++#include <linux/init.h>
++#include <linux/console.h>
++#include <linux/sysrq.h>
++#include <linux/platform_device.h>
++#include <linux/tty.h>
++#include <linux/tty_flip.h>
++#include <linux/serial_core.h>
++
++#include <asm/ip5000.h>
++
++#define SERIAL_UBICOM_BAUDRATE	115200
++#define SERIAL_UBICOM_DATA_BIT	8	/* Fixed parameter - do not change */
++#define SERIAL_UBICOM_PAR_BIT	0	/* Fixed parameter - do not change */
++#define SERIAL_UBICOM_STOP_BIT	1	/* Fixed parameter - do not change */
++
++/* UART name and device definitions */
++#define UBI32_MAILBOX_NAME	"ttyUM" // XXX
++#define UBI32_MAILBOX_MAJOR	207 // XXX
++#define UBI32_MAILBOX_MINOR	64
++
++#define PORT_UBI32_MAILBOX	1235
++#define NR_PORTS 1
++
++#define get_sclk() 0
++
++struct ubi32_mailbox_port {
++	struct uart_port port;
++	/*
++	 * NOTE (rkeller):
++	 * the uart port is wrapped in another structure in case we need to hold more state than 
++	 * what we can hold in the uart_port.
++	 * Not sure if we need this, I took over the concept from the blackfin driver.
++	 */
++} ubi32_mailbox_ports[NR_PORTS];
++
++struct ubi32_mailbox_resource {
++	int uart_base_addr;
++	int uart_irq;
++} ubi32_mailbox_resource[NR_PORTS] = {
++	/*
++	 * uart_base_addr has to be non-NULL because it is put in the uart_port membase.
++	 * If membase if null the kernel skips the configuration and our port_type never gets set.
++	 */
++	{ISD_MAILBOX_BASE, ISD_MAILBOX_INT}
++};
++
++static volatile struct ubicom32_isd_mailbox {
++	volatile u32_t in;
++	volatile u32_t out;
++	volatile u32_t status;
++} *ubi32_mailbox = (struct ubicom32_isd_mailbox *)ISD_MAILBOX_BASE;
++
++static void ubi32_mailbox_tx_chars(struct ubi32_mailbox_port *uart);
++
++static void ubi32_mailbox_mctrl_check(struct ubi32_mailbox_port *uart);
++
++#define TRUE 1
++#define FALSE 0
++
++static int mailbox_console_flg = TRUE;
++static int num_timeouts = 0;
++
++/*
++ * dummy functions and defined to be able to compile the Blackfin code
++ */
++#define UART_GET_LSR(port) (1)
++#define UART_PUT_LSR(port, bits)
++#define UART_CLEAR_LSR(port) (1)
++#define TEMT 1
++#define TFI 1
++#define BI 1
++#define PE 1
++#define OE 1
++#define FE 1
++#define THRE 1
++#define DR 1
++#define UART_GET_LCR(port) (1)
++#define UART_PUT_LCR(port, bits)
++#define SB 1
++#define STB 1
++#define PEN 1
++#define EPS 1
++#define STP 1
++#define WLS(n) 0
++#define UART_GET_IER(port) (1)
++#define UART_SET_IER(port, bits)
++#define UART_CLEAR_IER(port, bits)
++#define ETBEI 0
++#define ERBFI 0
++#define UART_GET_CHAR(port) ubi32_mailbox_get_char()
++#define UART_PUT_CHAR(port, ch) ubi32_mailbox_put_char(ch)
++#define SSYNC()
++#define UART_GET_DLL(port) 0
++#define UART_PUT_DLL(port, ch)
++#define UART_GET_DLH(port) 0
++#define UART_PUT_DLH(port, ch)
++#define UART_GET_GCTL(port) (0)
++#define UART_PUT_GCTL(port, ch)
++#define UCEN 1
++
++/*
++ * ubi32_mailbox_get_char_avail()
++ */
++static int ubi32_mailbox_get_char_avail(void)
++{
++	return !(ubi32_mailbox->status & ISD_MAILBOX_STATUS_IN_EMPTY);
++}
++
++/*
++ * ubi32_mailbox_get_char()
++ */
++static u32_t ubi32_mailbox_get_char(void)
++{
++	if (mailbox_console_flg == TRUE) {
++		/*
++		 * Mailbox console is connected.
++		 */
++		while (ubi32_mailbox->status & ISD_MAILBOX_STATUS_IN_EMPTY);
++		return ubi32_mailbox->in & 0xff;
++	}
++
++	/*
++	 * Mailbox console was not connected.
++	 */
++	if (ubi32_mailbox->status & ISD_MAILBOX_STATUS_IN_EMPTY) {
++		return 0xff;
++	}
++
++	/*
++	 * Mailbox console is connecting.
++	 */
++	mailbox_console_flg = TRUE;
++	num_timeouts = 0;
++	return ubi32_mailbox->in & 0xff;
++}
++
++#define MAILBOX_MAX_ATTEMPTS 1000000
++#define MAILBOX_MAX_TIMEOUTS 5
++/*
++ * ubi32_mailbox_put_char()
++ */
++static void ubi32_mailbox_put_char(u32_t v)
++{
++	/*
++	 * Wait to be able to output.
++	 */
++	u32_t num_attempts = 0;
++
++	if(mailbox_console_flg == TRUE) {
++		while(num_attempts++ < MAILBOX_MAX_ATTEMPTS) {
++			if(ubi32_mailbox->status & ISD_MAILBOX_STATUS_OUT_EMPTY) {
++				break;
++			}
++		}
++
++		/*
++		 * If timed out more than 5 times on send, mailbox console is disconnected now.
++		 */
++		if (num_attempts > MAILBOX_MAX_ATTEMPTS) {
++			if (num_timeouts++ > MAILBOX_MAX_TIMEOUTS) {
++				mailbox_console_flg = FALSE;
++			}
++		}
++	}
++	
++	asm volatile(
++		"pipe_flush 0	\n\t"
++		"pipe_flush 0	\n\t"
++		"pipe_flush 0	\n\t"
++		"pipe_flush 0	\n\t"
++		"pipe_flush 0	\n\t"
++		"pipe_flush 0	\n\t"
++		"pipe_flush 0	\n\t"
++	);
++
++	ubi32_mailbox->out = v & 0xff;
++}
++
++static void ubi32_mailbox_hw_init(struct ubi32_mailbox_port *uart)
++{
++// NOTE: It does not do any good to do these here because we are running on the linux hardware thread,
++//	and these have to be called on the ldsr thread.
++//	ubicom32_clear_interrupt(ISD_MAILBOX_INT);
++//	ubicom32_enable_interrupt(ISD_MAILBOX_INT);
++}
++
++/*
++ * interrupts are disabled on entry
++ */
++static void ubi32_mailbox_stop_tx(struct uart_port *port)
++{
++//	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++//	struct circ_buf *xmit = &uart->port.info->xmit;
++
++	while (!(UART_GET_LSR(uart) & TEMT))
++		cpu_relax();
++
++	/* Clear TFI bit */
++	UART_PUT_LSR(uart, TFI);
++	UART_CLEAR_IER(uart, ETBEI);
++}
++
++/*
++ * port is locked and interrupts are disabled
++ */
++static void ubi32_mailbox_start_tx(struct uart_port *port)
++{
++	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++	UART_SET_IER(uart, ETBEI);
++
++	ubi32_mailbox_tx_chars(uart);
++}
++
++/*
++ * Interrupts are enabled
++ */
++static void ubi32_mailbox_stop_rx(struct uart_port *port)
++{
++//	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++	UART_CLEAR_IER(uart, ERBFI);
++}
++
++/*
++ * Set the modem control timer to fire immediately.
++ */
++static void ubi32_mailbox_enable_ms(struct uart_port *port)
++{
++}
++
++static void ubi32_mailbox_rx_chars(struct ubi32_mailbox_port *uart)
++{
++	struct uart_info *info = uart->port.info;
++	struct tty_struct *tty = info->port.tty;
++	unsigned int status, ch, flg;
++
++	status = 0; // XXX? UART_GET_LSR(uart);
++	UART_CLEAR_LSR(uart);
++
++ 	ch = UART_GET_CHAR(uart);
++
++	if(ch == 0xff)
++		return; 
++
++	uart->port.icount.rx++;
++
++	if (status & BI) {
++		uart->port.icount.brk++;
++		if (uart_handle_break(&uart->port))
++			goto ignore_char;
++		status &= ~(PE | FE);
++	}
++	if (status & PE)
++		uart->port.icount.parity++;
++	if (status & OE)
++		uart->port.icount.overrun++;
++	if (status & FE)
++		uart->port.icount.frame++;
++
++	status &= uart->port.read_status_mask;
++
++	if (status & BI)
++		flg = TTY_BREAK;
++	else if (status & PE)
++		flg = TTY_PARITY;
++	else if (status & FE)
++		flg = TTY_FRAME;
++	else
++		flg = TTY_NORMAL;
++
++	if (uart_handle_sysrq_char(&uart->port, ch))
++		goto ignore_char;
++
++	uart_insert_char(&uart->port, status, OE, ch, flg);
++
++ ignore_char:
++	tty_flip_buffer_push(tty);
++}
++
++static void ubi32_mailbox_tx_chars(struct ubi32_mailbox_port *uart)
++{
++	struct circ_buf *xmit = &uart->port.info->xmit;
++
++	if (uart->port.x_char) {
++		UART_PUT_CHAR(uart, uart->port.x_char);
++		uart->port.icount.tx++;
++		uart->port.x_char = 0;
++	}
++	/*
++	 * Check the modem control lines before
++	 * transmitting anything.
++	 */
++	ubi32_mailbox_mctrl_check(uart);
++
++	if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) {
++		ubi32_mailbox_stop_tx(&uart->port);
++		return;
++	}
++
++	while ((UART_GET_LSR(uart) & THRE) && xmit->tail != xmit->head) {
++		UART_PUT_CHAR(uart, xmit->buf[xmit->tail]);
++		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
++		uart->port.icount.tx++;
++		SSYNC();
++	}
++
++	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
++		uart_write_wakeup(&uart->port);
++
++	if (uart_circ_empty(xmit))
++		ubi32_mailbox_stop_tx(&uart->port);
++}
++
++static irqreturn_t ubi32_mailbox_isr(int irq, void *dev_id)
++{
++	struct ubi32_mailbox_port *uart = dev_id;
++
++	spin_lock(&uart->port.lock);
++
++	//XXX?while (UART_GET_LSR(uart) & DR)
++
++	/*
++	 * RX process
++	 */
++	while (ubi32_mailbox_get_char_avail()) {
++		ubi32_mailbox_rx_chars(uart);
++	}
++
++#if 0
++	/*
++	 * TX process
++	 */
++	if (this_uart.tx_in == this_uart.tx_out) {
++		UBICOM32_IO_PORT(SERIAL_UBICOM_PORT)->int_mask &= ~IO_PORTX_INT_SERDES_TXBE;
++	} else if (UBICOM32_IO_PORT(SERIAL_UBICOM_PORT)->int_status & IO_PORTX_INT_SERDES_TXBE) {
++		uart_ubicom32_send(this_uart.tx_buf[this_uart.tx_out & (SERIAL_UBICOM_BUF_SIZE - 1)]);
++		this_uart.tx_out++;
++		UBICOM32_IO_PORT(SERIAL_UBICOM_PORT)->int_mask |= IO_PORTX_INT_SERDES_TXBE;
++	}
++#endif
++
++	spin_unlock(&uart->port.lock);
++
++	return IRQ_HANDLED;
++}
++#if 0
++static irqreturn_t ubi32_mailbox_tx_int(int irq, void *dev_id)
++{
++	struct ubi32_mailbox_port *uart = dev_id;
++
++	spin_lock(&uart->port.lock);
++	if (UART_GET_LSR(uart) & THRE)
++		ubi32_mailbox_tx_chars(uart);
++	spin_unlock(&uart->port.lock);
++
++	return IRQ_HANDLED;
++}
++#endif
++
++/*
++ * Return TIOCSER_TEMT when transmitter is not busy.
++ */
++static unsigned int ubi32_mailbox_tx_empty(struct uart_port *port)
++{
++//	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++	unsigned short lsr;
++
++	lsr = UART_GET_LSR(uart);
++	if (lsr & TEMT)
++		return TIOCSER_TEMT;
++	else
++		return 0;
++}
++
++static unsigned int ubi32_mailbox_get_mctrl(struct uart_port *port)
++{
++		return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
++}
++
++static void ubi32_mailbox_set_mctrl(struct uart_port *port, unsigned int mctrl)
++{
++}
++
++/*
++ * Handle any change of modem status signal since we were last called.
++ */
++static void ubi32_mailbox_mctrl_check(struct ubi32_mailbox_port *uart)
++{
++}
++
++/*
++ * Interrupts are always disabled.
++ */
++static void ubi32_mailbox_break_ctl(struct uart_port *port, int break_state)
++{
++//	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++	u16 lcr = UART_GET_LCR(uart);
++	if (break_state)
++		lcr |= SB;
++	else
++		lcr &= ~SB;
++	UART_PUT_LCR(uart, lcr);
++	SSYNC();
++}
++
++static int ubi32_mailbox_startup(struct uart_port *port)
++{
++	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++	if (request_irq(uart->port.irq, ubi32_mailbox_isr, IRQF_DISABLED,
++	     "UBI32_MAILBOX", uart)) {
++		printk(KERN_NOTICE "Unable to attach Ubicom32 SERDES interrupt\n");
++		return -EBUSY;
++	}
++
++	UART_SET_IER(uart, ERBFI);
++	return 0;
++}
++
++static void ubi32_mailbox_shutdown(struct uart_port *port)
++{
++	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++	free_irq(uart->port.irq, uart);
++}
++
++static void
++ubi32_mailbox_set_termios(struct uart_port *port, struct ktermios *termios,
++		   struct ktermios *old)
++{
++	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++	unsigned long flags;
++	unsigned int baud, quot;
++	unsigned short val, ier, lsr, lcr = 0;
++
++	switch (termios->c_cflag & CSIZE) {
++	case CS8:
++		lcr = WLS(8);
++		break;
++	case CS7:
++		lcr = WLS(7);
++		break;
++	case CS6:
++		lcr = WLS(6);
++		break;
++	case CS5:
++		lcr = WLS(5);
++		break;
++	default:
++		printk(KERN_ERR "%s: word lengh not supported\n",
++			__FUNCTION__);
++	}
++
++	if (termios->c_cflag & CSTOPB)
++		lcr |= STB;
++	if (termios->c_cflag & PARENB)
++		lcr |= PEN;
++	if (!(termios->c_cflag & PARODD))
++		lcr |= EPS;
++	if (termios->c_cflag & CMSPAR)
++		lcr |= STP;
++
++	port->read_status_mask = OE;
++	if (termios->c_iflag & INPCK)
++		port->read_status_mask |= (FE | PE);
++	if (termios->c_iflag & (BRKINT | PARMRK))
++		port->read_status_mask |= BI;
++
++	/*
++	 * Characters to ignore
++	 */
++	port->ignore_status_mask = 0;
++	if (termios->c_iflag & IGNPAR)
++		port->ignore_status_mask |= FE | PE;
++	if (termios->c_iflag & IGNBRK) {
++		port->ignore_status_mask |= BI;
++		/*
++		 * If we're ignoring parity and break indicators,
++		 * ignore overruns too (for real raw support).
++		 */
++		if (termios->c_iflag & IGNPAR)
++			port->ignore_status_mask |= OE;
++	}
++
++	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
++	quot = uart_get_divisor(port, baud);
++	spin_lock_irqsave(&uart->port.lock, flags);
++
++	do {
++		lsr = UART_GET_LSR(uart);
++	} while (!(lsr & TEMT));
++
++	/* Disable UART */
++	ier = UART_GET_IER(uart);
++	UART_CLEAR_IER(uart, 0xF);
++
++	UART_PUT_DLL(uart, quot & 0xFF);
++	SSYNC();
++	UART_PUT_DLH(uart, (quot >> 8) & 0xFF);
++	SSYNC();
++
++	UART_PUT_LCR(uart, lcr);
++
++	/* Enable UART */
++	UART_SET_IER(uart, ier);
++
++	val = UART_GET_GCTL(uart);
++	val |= UCEN;
++	UART_PUT_GCTL(uart, val);
++
++	spin_unlock_irqrestore(&uart->port.lock, flags);
++}
++
++static const char *ubi32_mailbox_type(struct uart_port *port)
++{
++	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++	return uart->port.type == PORT_UBI32_MAILBOX ? "UBI32_MAILBOX" : NULL;
++}
++
++/*
++ * Release the memory region(s) being used by 'port'.
++ */
++static void ubi32_mailbox_release_port(struct uart_port *port)
++{
++}
++
++/*
++ * Request the memory region(s) being used by 'port'.
++ */
++static int ubi32_mailbox_request_port(struct uart_port *port)
++{
++	return 0;
++}
++
++/*
++ * Configure/autoconfigure the port.
++ */
++static void ubi32_mailbox_config_port(struct uart_port *port, int flags)
++{
++	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++	if (flags & UART_CONFIG_TYPE && ubi32_mailbox_request_port(&uart->port) == 0)
++		uart->port.type = PORT_UBI32_MAILBOX;
++}
++
++/*
++ * Verify the new serial_struct (for TIOCSSERIAL).
++ * The only change we allow are to the flags and type, and
++ * even then only between PORT_UBI32_MAILBOX and PORT_UNKNOWN
++ */
++static int
++ubi32_mailbox_verify_port(struct uart_port *port, struct serial_struct *ser)
++{
++	return 0;
++}
++
++static struct uart_ops ubi32_mailbox_pops = {
++	.tx_empty	= ubi32_mailbox_tx_empty,
++	.set_mctrl	= ubi32_mailbox_set_mctrl,
++	.get_mctrl	= ubi32_mailbox_get_mctrl,
++	.stop_tx	= ubi32_mailbox_stop_tx,
++	.start_tx	= ubi32_mailbox_start_tx,
++	.stop_rx	= ubi32_mailbox_stop_rx,
++	.enable_ms	= ubi32_mailbox_enable_ms,
++	.break_ctl	= ubi32_mailbox_break_ctl,
++	.startup	= ubi32_mailbox_startup,
++	.shutdown	= ubi32_mailbox_shutdown,
++	.set_termios	= ubi32_mailbox_set_termios,
++	.type		= ubi32_mailbox_type,
++	.release_port	= ubi32_mailbox_release_port,
++	.request_port	= ubi32_mailbox_request_port,
++	.config_port	= ubi32_mailbox_config_port,
++	.verify_port	= ubi32_mailbox_verify_port,
++};
++
++static void __init ubi32_mailbox_init_ports(void)
++{
++	static int first = 1;
++	int i;
++
++	if (!first)
++		return;
++	first = 0;
++
++	for (i = 0; i < NR_PORTS; i++) {
++		ubi32_mailbox_ports[i].port.uartclk   = get_sclk();
++		ubi32_mailbox_ports[i].port.ops       = &ubi32_mailbox_pops;
++		ubi32_mailbox_ports[i].port.line      = i;
++		ubi32_mailbox_ports[i].port.iotype    = UPIO_MEM;
++		ubi32_mailbox_ports[i].port.membase   =
++			(void __iomem *)ubi32_mailbox_resource[i].uart_base_addr;
++		ubi32_mailbox_ports[i].port.mapbase   =
++			ubi32_mailbox_resource[i].uart_base_addr;
++		ubi32_mailbox_ports[i].port.irq       =
++			ubi32_mailbox_resource[i].uart_irq;
++		ubi32_mailbox_ports[i].port.flags     = UPF_BOOT_AUTOCONF;
++		spin_lock_init(&ubi32_mailbox_ports[i].port.lock);
++
++		ubi32_mailbox_hw_init(&ubi32_mailbox_ports[i]);
++	}
++
++}
++
++#ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE
++/*
++ * If the port was already initialised (eg, by a boot loader),
++ * try to determine the current setup.
++ */
++static void __init
++ubi32_mailbox_console_get_options(struct ubi32_mailbox_port *uart, int *baud,
++			   int *parity, int *bits)
++{
++	unsigned short status;
++
++	status = UART_GET_IER(uart) & (ERBFI | ETBEI);
++	if (status == (ERBFI | ETBEI)) {
++		/* ok, the port was enabled */
++		unsigned short lcr;
++		unsigned short dlh, dll;
++
++		lcr = UART_GET_LCR(uart);
++
++		*parity = 'n';
++		if (lcr & PEN) {
++			if (lcr & EPS)
++				*parity = 'e';
++			else
++				*parity = 'o';
++		}
++		switch (lcr & 0x03) {
++			case 0:	*bits = 5; break;
++			case 1:	*bits = 6; break;
++			case 2:	*bits = 7; break;
++			case 3:	*bits = 8; break;
++		}
++
++		dll = UART_GET_DLL(uart);
++		dlh = UART_GET_DLH(uart);
++
++		*baud = get_sclk() / (16*(dll | dlh << 8));
++	}
++	pr_debug("%s:baud = %d, parity = %c, bits= %d\n", __FUNCTION__, *baud, *parity, *bits);
++}
++#endif
++
++#if defined(CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
++static struct uart_driver ubi32_mailbox_reg;
++
++static int __init
++ubi32_mailbox_console_setup(struct console *co, char *options)
++{
++	struct ubi32_mailbox_port *uart;
++# ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE
++	int baud = SERIAL_UBICOM_BAUDRATE;
++	int bits = 8;
++	int parity = 'n';
++	int flow = 'n';
++# endif
++
++	/*
++	 * Check whether an invalid uart number has been specified, and
++	 * if so, search for the first available port that does have
++	 * console support.
++	 */
++	if (co->index == -1 || co->index >= NR_PORTS)
++		co->index = 0;
++	uart = &ubi32_mailbox_ports[co->index];
++
++# ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE
++	if (options)
++		uart_parse_options(options, &baud, &parity, &bits, &flow);
++	else
++		ubi32_mailbox_console_get_options(uart, &baud, &parity, &bits);
++
++	//JB return uart_set_options(&uart->port, co, baud, parity, bits, flow);
++	return 0;
++# else
++	return 0;
++# endif
++}
++#endif /* defined (CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE) ||
++				 defined (CONFIG_EARLY_PRINTK) */
++
++#ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE
++static void ubi32_mailbox_console_putchar(struct uart_port *port, int ch)
++{
++//	struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++	while (!(UART_GET_LSR(uart) & THRE))
++		barrier();
++	UART_PUT_CHAR(uart, ch);
++	SSYNC();
++}
++
++/*
++ * Interrupts are disabled on entering
++ */
++static void
++ubi32_mailbox_console_write(struct console *co, const char *s, unsigned int count)
++{
++	struct ubi32_mailbox_port *uart = &ubi32_mailbox_ports[co->index];
++	unsigned long flags = 0;
++
++	spin_lock_irqsave(&uart->port.lock, flags);
++	uart_console_write(&uart->port, s, count, ubi32_mailbox_console_putchar);
++	spin_unlock_irqrestore(&uart->port.lock, flags);
++
++}
++
++static struct console ubi32_mailbox_console = {
++	.name		= UBI32_MAILBOX_NAME,
++	.write		= ubi32_mailbox_console_write,
++	.device		= uart_console_device,
++	.setup		= ubi32_mailbox_console_setup,
++	.flags		= CON_PRINTBUFFER,
++	.index		= -1,
++	.data		= &ubi32_mailbox_reg,
++};
++
++static int __init ubi32_mailbox_console_init(void)
++{
++	ubi32_mailbox_init_ports();
++	register_console(&ubi32_mailbox_console);
++	return 0;
++}
++console_initcall(ubi32_mailbox_console_init);
++
++#define UBI32_MAILBOX_CONSOLE	&ubi32_mailbox_console
++#else
++#define UBI32_MAILBOX_CONSOLE	NULL
++#endif /* CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE */
++
++
++#ifdef CONFIG_EARLY_PRINTK
++static __init void ubi32_mailbox_early_putc(struct uart_port *port, int ch)
++{
++	UART_PUT_CHAR(uart, ch);
++}
++
++static __init void ubi32_mailbox_early_write(struct console *con, const char *s,
++					unsigned int n)
++{
++	struct ubi32_mailbox_port *uart = &ubi32_mailbox_ports[con->index];
++	unsigned int i;
++
++	for (i = 0; i < n; i++, s++) {
++		if (*s == '\n')
++			ubi32_mailbox_early_putc(&uart->port, '\r');
++		ubi32_mailbox_early_putc(&uart->port, *s);
++	}
++}
++
++static struct __init console ubi32_mailbox_early_console = {
++	.name = "early_UM",
++	.write = ubi32_mailbox_early_write,
++	.device = uart_console_device,
++	.flags = CON_PRINTBUFFER,
++	.setup = ubi32_mailbox_console_setup,
++	.index = -1,
++	.data  = &ubi32_mailbox_reg,
++};
++
++/*
++ * XXX Unused in our driver. Need to find out what the termios initialization is good/needed for.
++ */
++struct console __init *ubi32_mailbox_early_init(unsigned int port,
++						unsigned int cflag)
++{
++	struct ubi32_mailbox_port *uart;
++	struct ktermios t;
++
++	if (port == -1 || port >= NR_PORTS)
++		port = 0;
++	ubi32_mailbox_init_ports();
++	ubi32_mailbox_early_console.index = port;
++	uart = &ubi32_mailbox_ports[port];
++	t.c_cflag = cflag;
++	t.c_iflag = 0;
++	t.c_oflag = 0;
++	t.c_lflag = ICANON;
++	t.c_line = port;
++	ubi32_mailbox_set_termios(&uart->port, &t, &t);
++	return &ubi32_mailbox_early_console;
++}
++
++#endif /* CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE */
++
++static struct uart_driver ubi32_mailbox_reg = {
++	.owner			= THIS_MODULE,
++	.driver_name		= "ubi32_mailbox",
++	.dev_name		= UBI32_MAILBOX_NAME,
++	.major			= UBI32_MAILBOX_MAJOR,
++	.minor			= UBI32_MAILBOX_MINOR,
++	.nr			= NR_PORTS,
++	.cons			= UBI32_MAILBOX_CONSOLE,
++};
++
++static int ubi32_mailbox_suspend(struct platform_device *dev, pm_message_t state)
++{
++	struct ubi32_mailbox_port *uart = platform_get_drvdata(dev);
++
++	if (uart)
++		uart_suspend_port(&ubi32_mailbox_reg, &uart->port);
++
++	return 0;
++}
++
++static int ubi32_mailbox_resume(struct platform_device *dev)
++{
++	struct ubi32_mailbox_port *uart = platform_get_drvdata(dev);
++
++	if (uart)
++		uart_resume_port(&ubi32_mailbox_reg, &uart->port);
++
++	return 0;
++}
++
++static int ubi32_mailbox_probe(struct platform_device *dev)
++{
++	struct resource *res = dev->resource;
++	int i;
++
++	for (i = 0; i < dev->num_resources; i++, res++)
++		if (res->flags & IORESOURCE_MEM)
++			break;
++
++	if (i < dev->num_resources) {
++		for (i = 0; i < NR_PORTS; i++, res++) {
++			if (ubi32_mailbox_ports[i].port.mapbase != res->start)
++				continue;
++			ubi32_mailbox_ports[i].port.dev = &dev->dev;
++			uart_add_one_port(&ubi32_mailbox_reg, &ubi32_mailbox_ports[i].port);
++			platform_set_drvdata(dev, &ubi32_mailbox_ports[i]);
++		}
++	}
++
++	return 0;
++}
++
++static int ubi32_mailbox_remove(struct platform_device *pdev)
++{
++	struct ubi32_mailbox_port *uart = platform_get_drvdata(pdev);
++
++	platform_set_drvdata(pdev, NULL);
++
++	if (uart)
++		uart_remove_one_port(&ubi32_mailbox_reg, &uart->port);
++
++	return 0;
++}
++
++static struct platform_driver ubi32_mailbox_driver = {
++	.probe		= ubi32_mailbox_probe,
++	.remove		= ubi32_mailbox_remove,
++	.suspend	= ubi32_mailbox_suspend,
++	.resume		= ubi32_mailbox_resume,
++	.driver		= {
++		.name	= "ubi32-mbox",
++		.owner	= THIS_MODULE,
++	},
++};
++
++static int __init ubi32_mailbox_init(void)
++{
++	int ret;
++
++	pr_info("Serial: Ubicom32 mailbox serial driver.\n");
++
++	mailbox_console_flg = TRUE;
++	num_timeouts = 0;
++	ubi32_mailbox_init_ports();
++
++	ret = uart_register_driver(&ubi32_mailbox_reg);
++	if (ret == 0) {
++		ret = platform_driver_register(&ubi32_mailbox_driver);
++		if (ret) {
++			pr_debug("uart register failed\n");
++			uart_unregister_driver(&ubi32_mailbox_reg);
++		}
++	}
++
++	/*
++	 * XXX HACK: currently probe does not get called, but the port needs to be added to work.
++	 */
++	uart_add_one_port(&ubi32_mailbox_reg, &ubi32_mailbox_ports[0].port);
++	return ret;
++}
++
++static void __exit ubi32_mailbox_exit(void)
++{
++	platform_driver_unregister(&ubi32_mailbox_driver);
++	uart_unregister_driver(&ubi32_mailbox_reg);
++}
++
++module_init(ubi32_mailbox_init);
++module_exit(ubi32_mailbox_exit);
++
++MODULE_ALIAS_CHARDEV_MAJOR(UBI32_MAILBOX_MAJOR);
++MODULE_ALIAS("platform:ubi32_mailbox");
+--- /dev/null
++++ b/drivers/serial/ubi32_serdes.c
+@@ -0,0 +1,817 @@
++/*
++ * drivers/serial/ubi32_serdes.c
++ *   Ubicom32 On-Chip Serial Driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/ioport.h>
++#include <linux/init.h>
++#include <linux/console.h>
++#include <linux/sysrq.h>
++#include <linux/platform_device.h>
++#include <linux/tty.h>
++#include <linux/tty_flip.h>
++#include <linux/serial_core.h>
++
++#include <asm/ip5000.h>
++#include <asm/ubicom32suart.h>
++
++
++#define SERIAL_UBICOM_PIN_RXD	(1 << 0)
++#define SERIAL_UBICOM_PIN_TXD	(1 << 6)
++#define SERIAL_UBICOM_CTL0	0x8b300000
++#define SERIAL_UBICOM_CTL1	0x00000009
++
++#define SERIAL_UBICOM_DATA_BIT	8	/* Fixed parameter - do not change */
++#define SERIAL_UBICOM_PAR_BIT	0	/* Fixed parameter - do not change */
++#define SERIAL_UBICOM_STOP_BIT	1	/* Fixed parameter - do not change */
++
++/* UART name and device definitions */
++#define UBI32_SERDES_NAME	"ttyUS" // XXX
++#define UBI32_SERDES_MAJOR	206 // XXX
++#define UBI32_SERDES_MINOR	64 // XXX
++
++#define PORT_UBI32_SERDES	1234
++#define NR_PORTS 1
++
++struct uart_port ubi32_serdes_ports[NR_PORTS];
++
++struct ubi32_serdes_resource {
++	void *uart_base_addr;
++	int uart_irq;
++	int uart_clock;
++} ubi32_serdes_resource[NR_PORTS] = {
++	/*
++	 * Get params from kernel command line (required for early printk)
++	 * or from platform resources.
++	 */
++	{0, 0, 0}
++};
++
++/*
++ * Can get overridden by 'serdes=' kernel command line.
++ */
++static int ubi32_serdes_default_baud_rate = 115200;
++
++
++#define IO_PORT(port) ((struct ubicom32_io_port *)port->membase)
++#define IO_PORT_INT_STATUS(port) (IO_PORT(port)->int_status)
++#define IO_PORT_INT_MASK(port) (IO_PORT(port)->int_mask)
++#define IO_PORT_INT_CLR(port) (IO_PORT(port)->int_clr)
++
++
++/*
++ * ubi32_serdes_get_char()
++ */
++static u8_t ubi32_serdes_get_char(struct ubicom32_io_port *io_port)
++{
++	/*
++	 * Read from hardware (forced 32-bit atomic read).
++	 */
++	u32_t data = 0;
++
++	if ( io_port ) {
++		io_port->int_clr = IO_PORTX_INT_SERDES_RXBF;
++		asm volatile (
++			"move.4		%0, %1		\n\t"
++			: "=r" (data)
++			: "m" (*(u32_t *)&(io_port->rx_fifo))
++			);
++	}
++
++	return (u8_t)(data & 0x000000ff);
++}
++
++/*
++ * ubi32_serdes_put_char()
++ */
++static void ubi32_serdes_put_char(struct ubicom32_io_port *io_port, u8_t c)
++{
++	u32_t data = 0x0000fe00 | (c << 1);
++
++	if ( io_port ) {
++		/*
++		 * Fixed data format: 
++		 * [LSB]1 start bit - 8 data bits - no parity - 1 stop bit[MSB]
++		 */
++		io_port->int_clr = IO_PORTX_INT_SERDES_TXBE;
++		io_port->ctl2 = data;
++		io_port->int_set = IO_PORTX_INT_SERDES_TXBUF_VALID;
++	}
++}
++
++static void ubi32_serdes_hw_init(struct uart_port *port, int baud)
++{
++	struct ubicom32_io_port *io_port = IO_PORT(port);
++
++	if ( io_port ) {
++		/*
++		 * Put port functions 1-4 into reset state.
++		 * Function 0 (GPIO) does not need or have a reset bit.
++		 *
++		 * Select SERDES function for restart below.
++		 */
++		io_port->function =
++			IO_FUNC_FUNCTION_RESET(1) | IO_FUNC_FUNCTION_RESET(2) |
++			IO_FUNC_FUNCTION_RESET(3) | IO_FUNC_FUNCTION_RESET(4) |
++			IO_PORTX_FUNC_SERDES;
++
++		/*
++		 * Configure SERDES baudrate
++		 */
++		if ( baud == 0 ) {
++			baud = ubi32_serdes_default_baud_rate;
++		}
++
++		io_port->ctl0 =
++			SERIAL_UBICOM_CTL0 | 
++			((port->uartclk / (16 * baud)) - 1);
++
++		io_port->ctl1 =
++			SERIAL_UBICOM_CTL1;
++
++		/*
++		 * don't interrupt until startup and start_tx
++		 */
++		io_port->int_mask = 0;
++
++		/*
++		 * Set TXD pin output, RXD input and prevent GPIO
++		 * override on the TXD & RXD pins
++		 */
++		io_port->gpio_ctl &= ~SERIAL_UBICOM_PIN_RXD;
++		io_port->gpio_ctl |= SERIAL_UBICOM_PIN_TXD;
++		io_port->gpio_mask &= ~(SERIAL_UBICOM_PIN_RXD | SERIAL_UBICOM_PIN_TXD);
++
++		/*
++		 * Restart (un-reset) the port's SERDES function.
++		 */
++		io_port->function &= ~(IO_FUNC_FUNCTION_RESET(IO_PORTX_FUNC_SERDES));
++	}
++}
++
++#define ULITE_STATUS_RXVALID IO_PORTX_INT_SERDES_RXBF
++#define ULITE_STATUS_OVERRUN 0
++#define ULITE_STATUS_FRAME 0
++#define ULITE_STATUS_PARITY 0
++#define ULITE_STATUS_TXEMPTY IO_PORTX_INT_SERDES_TXBE
++#define ULITE_STATUS_TXFULL 0
++
++static int ubi32_serdes_receive(struct uart_port *port, int stat)
++{
++	struct tty_struct *tty = port->info->port.tty;
++	unsigned char ch = 0;
++	char flag = TTY_NORMAL;
++
++	if ((stat & (ULITE_STATUS_RXVALID | ULITE_STATUS_OVERRUN
++		     | ULITE_STATUS_FRAME)) == 0)
++		return 0;
++
++	/* stats */
++	if (stat & ULITE_STATUS_RXVALID) {
++		port->icount.rx++;
++		ch = ubi32_serdes_get_char((struct ubicom32_io_port *)port->membase);
++
++		if (stat & ULITE_STATUS_PARITY)
++			port->icount.parity++;
++	}
++
++	if (stat & ULITE_STATUS_OVERRUN)
++		port->icount.overrun++;
++
++	if (stat & ULITE_STATUS_FRAME)
++		port->icount.frame++;
++
++
++	/* drop byte with parity error if IGNPAR specificed */
++	if (stat & port->ignore_status_mask & ULITE_STATUS_PARITY)
++		stat &= ~ULITE_STATUS_RXVALID;
++
++	stat &= port->read_status_mask;
++
++	if (stat & ULITE_STATUS_PARITY)
++		flag = TTY_PARITY;
++
++	stat &= ~port->ignore_status_mask;
++
++	if (stat & ULITE_STATUS_RXVALID)
++		tty_insert_flip_char(tty, ch, flag);
++
++	if (stat & ULITE_STATUS_FRAME)
++		tty_insert_flip_char(tty, 0, TTY_FRAME);
++
++	if (stat & ULITE_STATUS_OVERRUN)
++		tty_insert_flip_char(tty, 0, TTY_OVERRUN);
++
++	return 1;
++}
++
++/*
++ * interrupts are disabled on entry
++ */
++static void ubi32_serdes_stop_tx(struct uart_port *port)
++{
++	IO_PORT_INT_MASK(port) = IO_PORT_INT_MASK(port) & ~IO_PORTX_INT_SERDES_TXBE;
++}
++
++static int ubi32_serdes_transmit(struct uart_port *port, int stat)
++{
++	struct circ_buf *xmit  = &port->info->xmit;
++
++	if (!(stat & IO_PORTX_INT_SERDES_TXBE))
++		return 0;
++
++	if (port->x_char) {
++		ubi32_serdes_put_char(IO_PORT(port), port->x_char);
++		port->x_char = 0;
++		port->icount.tx++;
++		return 1;
++	}
++
++	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
++		ubi32_serdes_stop_tx(port);
++		return 0;
++	}
++
++	ubi32_serdes_put_char(IO_PORT(port), xmit->buf[xmit->tail]);
++	xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE-1);
++	port->icount.tx++;
++
++	/* wake up */
++	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
++		uart_write_wakeup(port);
++
++	if (uart_circ_empty(xmit))
++		ubi32_serdes_stop_tx(port);
++
++	return 1;
++}
++
++/*
++ * port is locked and interrupts are disabled
++ */
++static void ubi32_serdes_start_tx(struct uart_port *port)
++{
++	IO_PORT_INT_MASK(port) = IO_PORT_INT_MASK(port) | IO_PORTX_INT_SERDES_TXBE;
++	ubi32_serdes_transmit(port, IO_PORT_INT_STATUS(port));
++}
++
++/*
++ * Interrupts are enabled
++ */
++static void ubi32_serdes_stop_rx(struct uart_port *port)
++{
++	/* don't forward any more data (like !CREAD) */
++	port->ignore_status_mask = IO_PORTX_INT_SERDES_RXBF;
++}
++
++/*
++ * Set the modem control timer to fire immediately.
++ */
++static void ubi32_serdes_enable_ms(struct uart_port *port)
++{
++	/* N/A */
++}
++
++static irqreturn_t ubi32_serdes_isr(int irq, void *dev_id)
++{
++	struct uart_port *port = dev_id;
++	int busy;
++
++	spin_lock(&port->lock);
++
++	do {
++		int stat = IO_PORT_INT_STATUS(port);
++		busy  = ubi32_serdes_receive(port, stat);
++		busy |= ubi32_serdes_transmit(port, stat);
++	} while (busy);
++
++	tty_flip_buffer_push(port->info->port.tty);
++
++	spin_unlock(&port->lock);
++
++	return IRQ_HANDLED;
++}
++
++/*
++ * Return TIOCSER_TEMT when transmitter is not busy.
++ */
++static unsigned int ubi32_serdes_tx_empty(struct uart_port *port)
++{
++	unsigned long flags;
++	unsigned int ret;
++
++	spin_lock_irqsave(&port->lock, flags);
++	ret = IO_PORT_INT_STATUS(port);
++	spin_unlock_irqrestore(&port->lock, flags);
++
++	return ret & ULITE_STATUS_TXEMPTY ? TIOCSER_TEMT : 0;
++}
++
++static unsigned int ubi32_serdes_get_mctrl(struct uart_port *port)
++{
++	return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
++}
++
++static void ubi32_serdes_set_mctrl(struct uart_port *port, unsigned int mctrl)
++{
++	/* N/A */
++}
++
++/*
++ * Interrupts are always disabled.
++ */
++static void ubi32_serdes_break_ctl(struct uart_port *port, int break_state)
++{
++	/* N/A */
++}
++
++static int ubi32_serdes_startup(struct uart_port *port)
++{
++	if (request_irq(port->irq, ubi32_serdes_isr, IRQF_DISABLED,
++	     "UBI32_SERDES", port)) {
++		printk(KERN_NOTICE "Unable to attach port interrupt\n");
++		return -EBUSY;
++	}
++
++	IO_PORT_INT_CLR(port) = IO_PORTX_INT_SERDES_RXBF;
++	IO_PORT_INT_MASK(port) = IO_PORTX_INT_SERDES_RXBF;
++	return 0;
++}
++
++static void ubi32_serdes_shutdown(struct uart_port *port)
++{
++	struct ubi32_serdes_port *uart = (struct ubi32_serdes_port *)port;
++
++	IO_PORT_INT_MASK(port) = 0;
++	free_irq(port->irq, uart);
++}
++
++static void
++ubi32_serdes_set_termios(struct uart_port *port, struct ktermios *termios,
++		   struct ktermios *old)
++{
++	unsigned long flags;
++	unsigned int baud;
++
++	spin_lock_irqsave(&port->lock, flags);
++
++	port->read_status_mask = ULITE_STATUS_RXVALID | ULITE_STATUS_OVERRUN
++		| ULITE_STATUS_TXFULL;
++
++	if (termios->c_iflag & INPCK)
++		port->read_status_mask |=
++			ULITE_STATUS_PARITY | ULITE_STATUS_FRAME;
++
++	port->ignore_status_mask = 0;
++	if (termios->c_iflag & IGNPAR)
++		port->ignore_status_mask |= ULITE_STATUS_PARITY
++			| ULITE_STATUS_FRAME | ULITE_STATUS_OVERRUN;
++
++	/* ignore all characters if CREAD is not set */
++	if ((termios->c_cflag & CREAD) == 0)
++		port->ignore_status_mask |=
++			ULITE_STATUS_RXVALID | ULITE_STATUS_PARITY
++			| ULITE_STATUS_FRAME | ULITE_STATUS_OVERRUN;
++
++	/* update timeout */
++	baud = uart_get_baud_rate(port, termios, old, 0, 460800);
++	uart_update_timeout(port, termios->c_cflag, baud);
++
++	IO_PORT(port)->ctl0 = SERIAL_UBICOM_CTL0 | 
++			((port->uartclk / (16 * baud)) - 1);
++
++	spin_unlock_irqrestore(&port->lock, flags);
++}
++
++static const char *ubi32_serdes_type(struct uart_port *port)
++{
++	return port->type == PORT_UBI32_SERDES ? "UBI32_SERDES" : NULL;
++}
++
++/*
++ * Release the memory region(s) being used by 'port'.
++ */
++static void ubi32_serdes_release_port(struct uart_port *port)
++{
++}
++
++/*
++ * Request the memory region(s) being used by 'port'.
++ */
++static int ubi32_serdes_request_port(struct uart_port *port)
++{
++	return 0;
++}
++
++/*
++ * Configure/autoconfigure the port.
++ */
++static void ubi32_serdes_config_port(struct uart_port *port, int flags)
++{
++	if (flags & UART_CONFIG_TYPE &&
++	    ubi32_serdes_request_port(port) == 0)
++		port->type = PORT_UBI32_SERDES;
++}
++
++/*
++ * Verify the new serial_struct (for TIOCSSERIAL).
++ * The only change we allow are to the flags and type, and
++ * even then only between PORT_UBI32_SERDES and PORT_UNKNOWN
++ */
++static int
++ubi32_serdes_verify_port(struct uart_port *port, struct serial_struct *ser)
++{
++	return 0;
++}
++
++static struct uart_ops ubi32_serdes_pops = {
++	.tx_empty	= ubi32_serdes_tx_empty,
++	.set_mctrl	= ubi32_serdes_set_mctrl,
++	.get_mctrl	= ubi32_serdes_get_mctrl,
++	.stop_tx	= ubi32_serdes_stop_tx,
++	.start_tx	= ubi32_serdes_start_tx,
++	.stop_rx	= ubi32_serdes_stop_rx,
++	.enable_ms	= ubi32_serdes_enable_ms,
++	.break_ctl	= ubi32_serdes_break_ctl,
++	.startup	= ubi32_serdes_startup,
++	.shutdown	= ubi32_serdes_shutdown,
++	.set_termios	= ubi32_serdes_set_termios,
++	.type		= ubi32_serdes_type,
++	.release_port	= ubi32_serdes_release_port,
++	.request_port	= ubi32_serdes_request_port,
++	.config_port	= ubi32_serdes_config_port,
++	.verify_port	= ubi32_serdes_verify_port,
++};
++
++static void __init ubi32_serdes_init_ports(void)
++{
++	int i;
++
++	for (i = 0; i < NR_PORTS; i++) {
++		ubi32_serdes_ports[i].uartclk   = ubi32_serdes_resource[i].uart_clock;
++		ubi32_serdes_ports[i].ops       = &ubi32_serdes_pops;
++		ubi32_serdes_ports[i].line      = i;
++		ubi32_serdes_ports[i].iotype    = UPIO_MEM;
++		ubi32_serdes_ports[i].membase   =
++			(void __iomem *)ubi32_serdes_resource[i].uart_base_addr;
++		ubi32_serdes_ports[i].mapbase   =
++			(resource_size_t)ubi32_serdes_resource[i].uart_base_addr;
++		ubi32_serdes_ports[i].irq       =
++			ubi32_serdes_resource[i].uart_irq;
++		ubi32_serdes_ports[i].flags     = UPF_BOOT_AUTOCONF;
++
++		ubi32_serdes_hw_init(&ubi32_serdes_ports[i], 0);
++	}
++
++}
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
++/*
++ * If the port was already initialised (eg, by a boot loader),
++ * try to determine the current setup.
++ */
++static void __init
++ubi32_serdes_console_get_options(struct uart_port *port, int *baud)
++{
++	u32 round_to = 1200;
++	u32 real_baud;
++
++	/*
++	 * We might get called before platform init and with no
++	 * kernel command line options, so port might be NULL.
++	 */
++	*baud = ubi32_serdes_default_baud_rate;;
++	if ( IO_PORT(port) == 0 )
++		return;
++
++	real_baud = port->uartclk 
++		/ (16 * ((IO_PORT(port)->ctl0 & ~SERIAL_UBICOM_CTL0) + 1));
++
++	*baud = ((real_baud + round_to - 1) / round_to) * round_to;
++
++	pr_debug("%s:baud = %d, real_baud = %d\n", __FUNCTION__, *baud, real_baud);
++}
++#endif
++
++#if defined(CONFIG_SERIAL_UBI32_SERDES_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
++static struct uart_driver ubi32_serdes_reg;
++
++static int __init
++ubi32_serdes_console_setup(struct console *co, char *options)
++{
++	struct uart_port *port;
++#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
++	int baud = ubi32_serdes_default_baud_rate;
++	int bits = 8;
++	int parity = 'n';
++	int flow = 'n';
++#endif
++
++	/*
++	 * Check whether an invalid uart number has been specified, and
++	 * if so, search for the first available port that does have
++	 * console support.
++	 */
++	if (co->index == -1 || co->index >= NR_PORTS)
++		co->index = 0;
++	port = &ubi32_serdes_ports[co->index];
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
++	if (options) {
++		uart_parse_options(options, &baud, &parity, &bits, &flow);
++		ubi32_serdes_hw_init(port, baud);
++	}
++	else
++		ubi32_serdes_console_get_options(port, &baud);
++
++	return uart_set_options(port, co, baud, parity, bits, flow);
++#else
++	return 0;
++#endif
++}
++#endif /* defined (CONFIG_SERIAL_UBI32_SERDES_CONSOLE) ||
++				 defined (CONFIG_EARLY_PRINTK) */
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
++static void 
++ubi32_serdes_console_putchar(struct uart_port *port, int ch)
++{
++	if ( IO_PORT(port) ) {
++		while (!(IO_PORT_INT_STATUS(port) & IO_PORTX_INT_SERDES_TXBE))
++			barrier();
++		ubi32_serdes_put_char(IO_PORT(port), ch);
++	}
++}
++
++/*
++ * Interrupts are disabled on entering
++ */
++static void
++ubi32_serdes_console_write(struct console *co, const char *s, unsigned int count)
++{
++	struct uart_port *port = &ubi32_serdes_ports[co->index];
++	unsigned long flags = 0;
++
++	spin_lock_irqsave(&port->lock, flags);
++	uart_console_write(port, s, count, ubi32_serdes_console_putchar);
++	spin_unlock_irqrestore(&port->lock, flags);
++
++}
++
++static struct console ubi32_serdes_console = {
++	.name		= UBI32_SERDES_NAME,
++	.write		= ubi32_serdes_console_write,
++	.device		= uart_console_device,
++	.setup		= ubi32_serdes_console_setup,
++	.flags		= CON_PRINTBUFFER,
++	.index		= -1,
++	.data		= &ubi32_serdes_reg,
++};
++
++static int __init ubi32_serdes_console_init(void)
++{
++	ubi32_serdes_init_ports();
++	register_console(&ubi32_serdes_console);
++	return 0;
++}
++console_initcall(ubi32_serdes_console_init);
++
++#define UBI32_SERDES_CONSOLE	&ubi32_serdes_console
++#else
++#define UBI32_SERDES_CONSOLE	NULL
++#endif /* CONFIG_SERIAL_UBI32_SERDES_CONSOLE */
++
++
++#ifdef CONFIG_EARLY_PRINTK
++static __init void ubi32_serdes_early_putc(struct uart_port *port, int ch)
++{
++	unsigned timeout = 0xffff;
++
++	while ((!(IO_PORT_INT_STATUS(port) & IO_PORTX_INT_SERDES_TXBE)) && --timeout)
++		cpu_relax();
++	ubi32_serdes_put_char(IO_PORT(port), ch);
++}
++
++static __init void ubi32_serdes_early_write(struct console *con, const char *s,
++					unsigned int n)
++{
++	struct uart_port *port = &ubi32_serdes_ports[con->index];
++	unsigned int i;
++
++	for (i = 0; i < n; i++, s++) {
++		if (*s == '\n')
++			ubi32_serdes_early_putc(port, '\r');
++		ubi32_serdes_early_putc(port, *s);
++	}
++}
++
++static struct __init console ubi32_serdes_early_console = {
++	.name = "early_US",
++	.write = ubi32_serdes_early_write,
++	.device = uart_console_device,
++	.flags = CON_PRINTBUFFER,
++	.setup = ubi32_serdes_console_setup,
++	.index = -1,
++	.data  = &ubi32_serdes_reg,
++};
++
++/*
++ * XXX Unused in our driver. Need to find out what the termios initialization is good/needed for.
++ */
++struct console __init *ubi32_serdes_early_init(unsigned int port_index,
++						unsigned int cflag)
++{
++	struct uart_port *uart;
++	struct ktermios t;
++
++	if (port_index == -1 || port_index >= NR_PORTS)
++		port_index = 0;
++	ubi32_serdes_init_ports();
++	ubi32_serdes_early_console.index = port_index;
++	uart = &ubi32_serdes_ports[port_index];
++	t.c_cflag = cflag;
++	t.c_iflag = 0;
++	t.c_oflag = 0;
++	t.c_lflag = ICANON;
++	t.c_line = port_index;
++	ubi32_serdes_set_termios(uart, &t, &t);
++	return &ubi32_serdes_early_console;
++}
++
++#endif /* CONFIG_SERIAL_UBI32_SERDES_CONSOLE */
++
++static struct uart_driver ubi32_serdes_reg = {
++	.owner			= THIS_MODULE,
++	.driver_name		= "ubi32_serdes",
++	.dev_name		= UBI32_SERDES_NAME,
++	.major			= UBI32_SERDES_MAJOR,
++	.minor			= UBI32_SERDES_MINOR,
++	.nr			= NR_PORTS,
++	.cons			= UBI32_SERDES_CONSOLE,
++};
++
++static int ubi32_serdes_suspend(struct platform_device *dev, pm_message_t state)
++{
++	struct uart_port *port = platform_get_drvdata(dev);
++
++	if (port)
++		uart_suspend_port(&ubi32_serdes_reg, port);
++
++	return 0;
++}
++
++static int ubi32_serdes_resume(struct platform_device *dev)
++{
++	struct uart_port *port = platform_get_drvdata(dev);
++
++	if (port)
++		uart_resume_port(&ubi32_serdes_reg, port);
++
++	return 0;
++}
++
++static int ubi32_serdes_probe(struct platform_device *dev)
++{
++	struct resource *res = dev->resource;
++	int i;
++
++	for (i = 0; i < dev->num_resources; i++, res++) {
++		if (res->flags & IORESOURCE_MEM) {
++			ubi32_serdes_resource[0].uart_base_addr = (void *) res->start;
++		}
++		else if (res->flags & IORESOURCE_IRQ) {
++			ubi32_serdes_resource[0].uart_irq = res->start;
++		}
++		else if (res->flags & UBICOM32_SUART_IORESOURCE_CLOCK) {
++			ubi32_serdes_resource[0].uart_clock = res->start;
++		}
++	}
++
++	ubi32_serdes_init_ports();
++
++	return 0;
++}
++
++static int ubi32_serdes_remove(struct platform_device *pdev)
++{
++	struct uart_port *port = platform_get_drvdata(pdev);
++
++	platform_set_drvdata(pdev, NULL);
++
++	if (port)
++		uart_remove_one_port(&ubi32_serdes_reg, port);
++
++	return 0;
++}
++
++static struct platform_driver ubi32_serdes_driver = {
++	.remove		= ubi32_serdes_remove,
++	.suspend	= ubi32_serdes_suspend,
++	.resume		= ubi32_serdes_resume,
++	.driver		= {
++		.name	= "ubicom32suart",
++		.owner	= THIS_MODULE,
++	},
++};
++
++
++#ifndef MODULE
++/*
++ * Called at boot time.
++ *
++ * You can specify IO base, IRQ, and clock for the serdes serial port
++ * using kernel command line "serdes=0xiobase,irq,clock".  Values
++ * specified will be overwritten by platform device data, if present.
++ */
++static int __init ubi32_serdes_setup(char *str)
++{
++#define N_PARMS   (4+1)
++	int ints[N_PARMS];
++	int i;
++
++	str = get_options(str, ARRAY_SIZE(ints), ints);
++
++	for (i = 0; i < N_PARMS; i++) {
++		if (i < ints[0]) {
++			if (i == 0) {
++				ubi32_serdes_resource[0].uart_base_addr = (void *) ints[i+1];
++			}
++			else if (i == 1) {
++				ubi32_serdes_resource[0].uart_irq = ints[i+1];
++			}
++			else if (i == 2) {
++				ubi32_serdes_resource[0].uart_clock = ints[i+1];
++			}
++			else if (i == 3) {
++				ubi32_serdes_default_baud_rate = ints[i+1];
++			}
++		}
++	}
++	return 1;
++}
++
++__setup("serdes=", ubi32_serdes_setup);
++#endif
++
++static int __init ubi32_serdes_init(void)
++{
++	int ret;
++
++	pr_info("Serial: Ubicom32 serdes uart serial driver\n");
++
++	ret = platform_driver_probe(&ubi32_serdes_driver, ubi32_serdes_probe);
++	if (ret != 0) {
++		printk(KERN_INFO "serdes platform_driver_probe() failed: %d\n", ret);
++		return ret;
++	}
++
++	ubi32_serdes_init_ports();
++
++	ret = uart_register_driver(&ubi32_serdes_reg);
++	if ( ret == 0 ) {
++		ret = uart_add_one_port(&ubi32_serdes_reg, &ubi32_serdes_ports[0]);
++		if ( ret != 0 ) {
++			uart_unregister_driver(&ubi32_serdes_reg);
++		}
++	}
++
++	return ret;
++}
++
++static void __exit ubi32_serdes_exit(void)
++{
++	platform_driver_unregister(&ubi32_serdes_driver);
++	uart_unregister_driver(&ubi32_serdes_reg);
++}
++
++module_init(ubi32_serdes_init);
++module_exit(ubi32_serdes_exit);
++
++MODULE_AUTHOR("Rainer Keller <rkeller@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom generic serial port driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_CHARDEV_MAJOR(UBI32_SERDES_MAJOR);
++MODULE_ALIAS("platform:ubi32_serdes");
+--- /dev/null
++++ b/drivers/serial/ubi32_uarttio.c
+@@ -0,0 +1,1171 @@
++/*
++ * drivers/serial/ubi32_uarttio.c
++ *   Ubicom32 Serial Virtual Peripherial Driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/module.h>
++#include <linux/ioport.h>
++#include <linux/init.h>
++#include <linux/console.h>
++#include <linux/sysrq.h>
++#include <linux/platform_device.h>
++#include <linux/tty.h>
++#include <linux/tty_flip.h>
++#include <linux/serial_core.h>
++
++#include <asm/ip5000.h>
++#include <asm/gpio.h>
++#include <asm/thread.h>
++#include <asm/uart_tio.h>
++
++#define DRIVER_NAME	"ubi32_uarttio"
++
++/*
++ * For storing the module parameters.
++ */
++#define UBI32_UARTTIO_MAX_PARAM_LEN	80
++static char utio_ports_param[UBI32_UARTTIO_MAX_PARAM_LEN];
++
++/* 
++ * UART name and device definitions 
++ */
++#define UBI32_UARTTIO_NAME	"ttyUV" // XXX
++#define UBI32_UARTTIO_MAJOR	206 // XXX
++#define UBI32_UARTTIO_MINOR	64 // XXX
++
++/*
++ * The following structures are allocated statically because the
++ * memory allocation subsystem is not initialized this early on
++ */
++
++/*
++ * Per port structure
++ */
++struct ubi32_uarttio_port {
++	struct uarttio_uart		*uart;
++	unsigned int			tx_pin;
++	unsigned int			rx_pin;
++
++	struct uart_port		port;
++
++	u8_t				added;
++
++	/*
++	 * If this value is set, the port has had its direction set already
++	 */
++	u8_t				port_init;
++};
++static struct ubi32_uarttio_port uarttio_ports[CONFIG_SERIAL_UBI32_UARTTIO_NR_UARTS];
++
++/*
++ * Number of ports currently initialized
++ */
++static int uarttio_nports;
++
++/*
++ * Per device structure
++ */
++struct ubi32_uarttio_instance {
++	struct uarttio_regs		*regs;
++	struct ubi32_uarttio_port	*ports;
++
++	u8_t				irq_requested;
++	u8_t				driver_registered;
++	u8_t				irq;
++};
++static struct ubi32_uarttio_instance uarttio_inst;
++
++#ifdef CONFIG_SERIAL_UBI32_UARTTIO_CONSOLE
++static struct console ubi32_uarttio_console;
++#define UBI32_UARTTIO_CONSOLE	&ubi32_uarttio_console
++#else
++#define UBI32_UARTTIO_CONSOLE	NULL
++#endif
++
++static struct uart_driver ubi32_uarttio_uart_driver = {
++	.owner			= THIS_MODULE,
++	.driver_name		= DRIVER_NAME,
++	.dev_name		= UBI32_UARTTIO_NAME,
++	.major			= UBI32_UARTTIO_MAJOR,
++	.minor			= UBI32_UARTTIO_MINOR,
++	.cons			= UBI32_UARTTIO_CONSOLE,
++};
++
++#ifdef UBI32_UARTTIO_UNUSED
++/*
++ * ubi32_uarttio_get_send_space
++ */
++static int ubi32_uarttio_get_send_space(struct uarttio_uart *uart)
++{
++	int count = uart->tx_fifo_head - uart->tx_fifo_tail;
++	if (count < 0) {
++		count += uart->tx_fifo_size;
++	}
++	return uart->tx_fifo_size - count;
++}
++#endif
++
++/*
++ * ubi32_uarttio_get_recv_ready
++ */
++static int ubi32_uarttio_get_recv_ready(struct uarttio_uart *uart)
++{
++	int count = uart->rx_fifo_head - uart->rx_fifo_tail;
++	if (count < 0) {
++		count += uart->rx_fifo_size;
++	}
++	return count;
++}
++
++/*
++ * ubi32_uarttio_get_char()
++ */
++static u8_t ubi32_uarttio_get_char(struct uarttio_uart *uart)
++{
++	/*
++	 * Retrieve byte
++	 */
++	u32_t tail = uart->rx_fifo_tail;
++	u8_t data = uart->rx_fifo[tail];
++
++	if (++tail == uart->rx_fifo_size) {
++		tail = 0;
++	}
++	uart->rx_fifo_tail = tail;
++
++	return data;
++}
++
++/*
++ * ubi32_uarttio_put_char()
++ */
++static int ubi32_uarttio_put_char(struct uarttio_uart *uart, u8_t c)
++{
++	u32_t head = uart->tx_fifo_head;
++	u32_t prev = head;
++
++	/*
++	 * Wrap
++	 */
++	if (++head == uart->tx_fifo_size) {
++		head = 0;
++	}
++
++	/*
++	 * If there isn't any space, return EBUSY
++	 */
++	if (head == uart->tx_fifo_tail) {
++		return -EBUSY;
++	}
++
++	/*
++	 * Put the character in the queue
++	 */
++	uart->tx_fifo[prev] = c;
++	uart->tx_fifo_head = head;
++
++	return 0;
++}
++
++/*
++ * ubi32_uarttio_set_baud
++ */
++static int ubi32_uarttio_set_baud(struct ubi32_uarttio_port *uup, unsigned int baud)
++{
++	if (uup->uart->current_baud_rate == baud) {
++		return 0;
++	}
++
++	uup->uart->baud_rate = baud;
++	uup->uart->flags |= UARTTIO_UART_FLAG_SET_RATE;
++	while (uup->uart->flags & UARTTIO_UART_FLAG_SET_RATE) {
++		cpu_relax();
++	}
++
++	if (uup->uart->current_baud_rate != baud) {
++		/*
++		 * Failed to set baud rate
++		 */
++		printk(KERN_WARNING "Invalid baud rate %u, running at %u\n", baud, uup->uart->current_baud_rate);
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++/*
++ * ubi32_uarttio_handle_receive
++ */
++static void ubi32_uarttio_handle_receive(struct ubi32_uarttio_port *uup, int stat)
++{
++	struct uarttio_uart *uart = uup->uart;
++	struct uart_port *port = &uup->port;
++	struct tty_struct *tty = port->info->port.tty;
++	unsigned char ch = 0;
++	char flag = TTY_NORMAL;
++	int count;
++
++	if ((stat & (UARTTIO_UART_INT_RX | UARTTIO_UART_INT_RXFRAME | UARTTIO_UART_INT_RXOVF)) == 0) {
++		return;
++	}
++
++	if (stat & UARTTIO_UART_INT_RX) {
++		count = ubi32_uarttio_get_recv_ready(uart);
++		port->icount.rx += count;
++	}
++
++	if (stat & UARTTIO_UART_INT_RXOVF) {
++		port->icount.overrun++;
++	}
++
++	if (stat & UARTTIO_UART_INT_RXFRAME) {
++		port->icount.frame++;
++	}
++
++	stat &= ~port->ignore_status_mask;
++
++	if (stat & UARTTIO_UART_INT_RX) {
++		int i;
++		for (i = 0; i < count; i++) {
++			ch = ubi32_uarttio_get_char(uart);
++			tty_insert_flip_char(tty, ch, flag);
++		}
++	}
++
++	if (stat & UARTTIO_UART_INT_RXFRAME) {
++		tty_insert_flip_char(tty, 0, TTY_FRAME);
++	}
++
++	if (stat & UARTTIO_UART_INT_RXOVF) {
++		tty_insert_flip_char(tty, 0, TTY_OVERRUN);
++	}
++}
++
++/*
++ * ubi32_uarttio_stop_tx
++ *	interrupts are disabled on entry
++ */
++static void ubi32_uarttio_stop_tx(struct uart_port *port)
++{
++	struct ubi32_uarttio_port *uup = port->private_data;
++
++	uup->uart->int_mask &= ~UARTTIO_UART_INT_TXBE;
++}
++
++/*
++ * ubi32_uarttio_handle_transmit
++ */
++static void ubi32_uarttio_handle_transmit(struct ubi32_uarttio_port *uup, int stat)
++{
++	struct uarttio_uart *uart = uup->uart;
++	struct uart_port *port = &uup->port;
++	struct circ_buf *xmit  = &port->info->xmit;
++
++	if (!(stat & UARTTIO_UART_INT_TXBE)) {
++		return;
++	}
++
++	if (port->x_char) {
++		if (ubi32_uarttio_put_char(uart, port->x_char)) {
++			return;
++		}
++		port->x_char = 0;
++		port->icount.tx++;
++		return;
++	}
++
++	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
++		ubi32_uarttio_stop_tx(port);
++		return;
++	}
++
++	/*
++	 * Send as many characters as we can
++	 */
++	while (ubi32_uarttio_put_char(uart, xmit->buf[xmit->tail]) == 0) {
++		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
++		port->icount.tx++;
++		if (uart_circ_empty(xmit)) {
++			break;
++		}
++	}
++
++	/* wake up */
++	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) {
++		uart_write_wakeup(port);
++	}
++
++	if (uart_circ_empty(xmit)) {
++		ubi32_uarttio_stop_tx(port);
++	}
++}
++
++/*
++ * ubi32_uarttio_start_tx
++ *	port is locked and interrupts are disabled
++ */
++static void ubi32_uarttio_start_tx(struct uart_port *port)
++{
++	struct ubi32_uarttio_port *uup = port->private_data;
++	struct uarttio_uart *uart = uup->uart;
++
++	uart->int_mask |= UARTTIO_UART_INT_TXBE;
++}
++
++/*
++ * ubi32_uarttio_stop_rx
++ *	Interrupts are enabled
++ */
++static void ubi32_uarttio_stop_rx(struct uart_port *port)
++{
++	struct ubi32_uarttio_port *uup = port->private_data;
++	struct uarttio_uart *uart = uup->uart;
++
++	/* 
++	 * don't forward any more data (like !CREAD) 
++	 */
++	uart->int_mask &= ~UARTTIO_UART_INT_RX;
++	port->ignore_status_mask = UARTTIO_UART_INT_RX;
++}
++
++/*
++ * ubi32_uarttio_enable_ms
++ *	Set the modem control timer to fire immediately.
++ */
++static void ubi32_uarttio_enable_ms(struct uart_port *port)
++{
++	/* N/A */
++}
++
++/*
++ * ubi32_uarttio_isr
++ */
++static irqreturn_t ubi32_uarttio_isr(int irq, void *appdata)
++{
++	struct ubi32_uarttio_port *uup = uarttio_ports;
++	int i;
++
++	/*
++	 * Service all of the ports
++	 */
++	for (i = 0; i < uarttio_nports; i++) {
++		unsigned int flags;
++
++		if (!(uup->uart->flags & UARTTIO_UART_FLAG_ENABLED)) {
++			uup++;
++			continue;
++		}
++
++		spin_lock(&uup->port.lock);
++
++		flags = uup->uart->int_flags;
++
++		uup->uart->int_flags = 0;
++
++		ubi32_uarttio_handle_receive(uup, flags);
++		ubi32_uarttio_handle_transmit(uup, flags);
++
++		tty_flip_buffer_push(uup->port.info->port.tty);
++
++		spin_unlock(&uup->port.lock);
++
++		uup++;
++	}
++
++	return IRQ_HANDLED;
++}
++
++/*
++ * ubi32_uarttio_tx_empty
++ *	Return TIOCSER_TEMT when transmitter is not busy.
++ */
++static unsigned int ubi32_uarttio_tx_empty(struct uart_port *port)
++{
++	struct ubi32_uarttio_port *uup = port->private_data;
++
++	if (uup->uart->tx_fifo_head == uup->uart->tx_fifo_tail) {
++		return TIOCSER_TEMT;
++	}
++
++	return 0;
++}
++
++/*
++ * ubi32_uarttio_get_mctrl
++ */
++static unsigned int ubi32_uarttio_get_mctrl(struct uart_port *port)
++{
++	return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
++}
++
++/*
++ * ubi32_uarttio_set_mctrl
++ */
++static void ubi32_uarttio_set_mctrl(struct uart_port *port, unsigned int mctrl)
++{
++	/* N/A */
++}
++
++/*
++ * ubi32_uarttio_break_ctl
++ */
++static void ubi32_uarttio_break_ctl(struct uart_port *port, int break_state)
++{
++	/* N/A */
++}
++
++/*
++ * ubi32_uarttio_startup
++ */
++static int ubi32_uarttio_startup(struct uart_port *port)
++{
++	struct ubi32_uarttio_port *uup = port->private_data;
++	struct uarttio_uart *uart = uup->uart;
++
++	uart->flags |= UARTTIO_UART_FLAG_ENABLED;
++
++	uart->int_mask |= UARTTIO_UART_INT_TXBE | UARTTIO_UART_INT_RX;
++
++	return 0;
++}
++
++/*
++ * ubi32_uarttio_shutdown
++ */
++static void ubi32_uarttio_shutdown(struct uart_port *port)
++{
++	struct ubi32_uarttio_port *uup = port->private_data;
++	struct uarttio_uart *uart = uup->uart;
++
++	uart->int_mask = 0;
++	uart->flags &= ~UARTTIO_UART_FLAG_ENABLED;
++}
++
++/*
++ * ubi32_uarttio_set_termios
++ */
++static void ubi32_uarttio_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old)
++{
++	struct ubi32_uarttio_port *uup = port->private_data;
++	unsigned long flags;
++	unsigned int baud;
++
++	spin_lock_irqsave(&port->lock, flags);
++
++#if 0
++	port->read_status_mask = UBI32_UARTTIO_RX | UBI32_UARTTIO_RXOVF | UBI32_UARTTIO_TXOVF;
++
++	if (termios->c_iflag & INPCK) {
++		port->read_status_mask |= UBI32_UARTTIO_RXFRAME;
++	}
++#endif
++
++	port->ignore_status_mask = 0;
++	if (termios->c_iflag & IGNPAR) {
++		port->ignore_status_mask |= UARTTIO_UART_INT_RXFRAME | 
++					    UARTTIO_UART_INT_RXOVF;
++	}
++
++	/* 
++	 * ignore all characters if CREAD is not set 
++	 */
++	if ((termios->c_cflag & CREAD) == 0) {
++		port->ignore_status_mask |= UARTTIO_UART_INT_RX | 
++					    UARTTIO_UART_INT_RXFRAME | 
++					    UARTTIO_UART_INT_RXOVF;
++	}
++
++	/* update timeout */
++	baud = uart_get_baud_rate(port, termios, old, 0, 460800);
++	uart_update_timeout(port, termios->c_cflag, baud);
++
++	ubi32_uarttio_set_baud(uup, baud);
++	spin_unlock_irqrestore(&port->lock, flags);
++}
++
++/*
++ * ubi32_uarttio_type
++ */
++static const char *ubi32_uarttio_type(struct uart_port *port)
++{
++	return (port->type == PORT_UBI32_UARTTIO) ? "UBI32_UARTTIO" : NULL;
++}
++
++/*
++ * ubi32_uarttio_release_port
++ *	Release the memory region(s) being used by 'port'.
++ */
++static void ubi32_uarttio_release_port(struct uart_port *port)
++{
++}
++
++/*
++ * ubi32_uarttio_request_port
++ *	Request the memory region(s) being used by 'port'.
++ */
++static int ubi32_uarttio_request_port(struct uart_port *port)
++{
++	return 0;
++}
++
++/*
++ * ubi32_uarttio_config_port
++ *	Configure/autoconfigure the port.
++ */
++static void ubi32_uarttio_config_port(struct uart_port *port, int flags)
++{
++	if ((flags & UART_CONFIG_TYPE) && (ubi32_uarttio_request_port(port) == 0)) {
++		port->type = PORT_UBI32_UARTTIO;
++	}
++}
++
++/*
++ * ubi32_uarttio_verify_port
++ *	Verify the new serial_struct (for TIOCSSERIAL).
++ *
++ * The only change we allow are to the flags and type, and
++ * even then only between PORT_UBI32_UARTTIO and PORT_UNKNOWN
++ */
++static int ubi32_uarttio_verify_port(struct uart_port *port, struct serial_struct *ser)
++{
++	return 0;
++}
++
++static struct uart_ops ubi32_uarttio_pops = {
++	.tx_empty	= ubi32_uarttio_tx_empty,
++	.set_mctrl	= ubi32_uarttio_set_mctrl,
++	.get_mctrl	= ubi32_uarttio_get_mctrl,
++	.stop_tx	= ubi32_uarttio_stop_tx,
++	.start_tx	= ubi32_uarttio_start_tx,
++	.stop_rx	= ubi32_uarttio_stop_rx,
++	.enable_ms	= ubi32_uarttio_enable_ms,
++	.break_ctl	= ubi32_uarttio_break_ctl,
++	.startup	= ubi32_uarttio_startup,
++	.shutdown	= ubi32_uarttio_shutdown,
++	.set_termios	= ubi32_uarttio_set_termios,
++	.type		= ubi32_uarttio_type,
++	.release_port	= ubi32_uarttio_release_port,
++	.request_port	= ubi32_uarttio_request_port,
++	.config_port	= ubi32_uarttio_config_port,
++	.verify_port	= ubi32_uarttio_verify_port,
++};
++
++/*
++ * ubi32_uarttio_add_ports
++ */
++static int __init ubi32_uarttio_add_ports(void)
++{
++	int res = 0;
++	struct ubi32_uarttio_port *uup = uarttio_ports;
++	int i = 0;
++
++	for (i = 0; i < uarttio_nports; i++) {
++		/*
++		 * Setup the GPIOs
++		 */
++		res = gpio_request(uup->tx_pin, "ubi32_uarttio_tx");
++		if (res) {
++			printk(KERN_WARNING "Failed to request GPIO %d\n", uup->tx_pin);
++			res = -EBUSY;
++			goto next;
++		}
++
++		res = gpio_request(uup->rx_pin, "ubi32_uarttio_rx");
++		if (res) {
++			gpio_free(uup->tx_pin);
++			printk(KERN_WARNING "Failed to request GPIO %d\n", uup->rx_pin);
++			res = -EBUSY;
++			goto next;
++		}
++
++		res = uart_add_one_port(&ubi32_uarttio_uart_driver, &uup->port);
++		if (res) {
++			gpio_free(uup->rx_pin);
++			gpio_free(uup->tx_pin);
++			res = -ENODEV;
++			printk(KERN_WARNING "Failed to add port %d,%d\n", uup->tx_pin, uup->rx_pin);
++			goto next;
++		}
++		uup->added = 1;
++
++		/*
++		 * Set the direction of the ports now, after we're sure that everything is ok
++		 */
++		if (!uup->port_init) {
++			gpio_direction_output(uup->tx_pin, 1);
++			gpio_direction_input(uup->rx_pin);
++		}
++
++next:
++		uup++;
++	}
++	return res;
++}
++
++/*
++ * ubi32_uarttio_cleanup
++ */
++static void ubi32_uarttio_cleanup(void)
++{
++	struct ubi32_uarttio_port *uup;
++	int i;
++
++	/*
++	 * Stop the hardware thread
++	 */
++	if (uarttio_inst.regs) {
++		thread_disable(uarttio_inst.regs->thread);
++	}
++	if (uarttio_inst.irq_requested) {
++		free_irq(uarttio_inst.irq, NULL);
++	}
++
++	/*
++	 * Get rid of the ports
++	 */
++	uup = uarttio_inst.ports;
++	for (i = 0; i < uarttio_nports; i++) {
++		gpio_free(uup->tx_pin);
++		gpio_free(uup->rx_pin);
++		if (uup->added) {
++			uart_remove_one_port(&ubi32_uarttio_uart_driver, &uup->port);
++		}
++		uup++;
++	}
++
++	if (uarttio_inst.driver_registered) {
++		uart_unregister_driver(&ubi32_uarttio_uart_driver);
++	}
++}
++
++/*
++ * ubi32_uarttio_setup_port
++ *	Setup a port in the TIO registers
++ */
++static int ubi32_uarttio_setup_port(int index,
++				    struct uarttio_uart *uart,
++				    unsigned int baud, unsigned int tx_pin, 
++				    unsigned int rx_pin)
++{
++	struct ubi32_uarttio_port *uup = &uarttio_ports[index];
++	void *tx_port = ubi_gpio_get_port(tx_pin);
++	void *rx_port = ubi_gpio_get_port(rx_pin);
++
++	/*
++	 * Verify the ports are on chip
++	 */
++	if (!tx_port || !rx_port) {
++		printk(KERN_WARNING "Invalid port(s) specified: %u or %u\n", tx_pin, rx_pin);
++		return -EINVAL;
++	}
++
++	uup->tx_pin = tx_pin;
++	uup->rx_pin = rx_pin;
++	uup->uart = uart;
++
++	/*
++	 * Setup the port structure
++	 */
++	uup->port.ops		= &ubi32_uarttio_pops;
++	uup->port.line		= index;
++	uup->port.iotype	= UPIO_MEM;
++	uup->port.flags		= UPF_BOOT_AUTOCONF;
++	uup->port.fifosize	= uup->uart->tx_fifo_size;
++	uup->port.private_data	= uup;
++
++	/*
++	 * We share this IRQ across all ports
++	 */
++	uup->port.irq		= uarttio_inst.irq;
++
++	/*
++	 * We really don't have a mem/map base but without these variables
++	 * set, the serial_core won't startup.
++	 */
++	uup->port.membase	= (void __iomem *)uup;
++	uup->port.mapbase	= (resource_size_t)uup;
++	spin_lock_init(&uup->port.lock);
++
++	/*
++	 * Set up the hardware
++	 */
++	uart->flags = UARTTIO_UART_FLAG_SET_RATE | UARTTIO_UART_FLAG_RESET;
++
++	uart->tx_port = (unsigned int)tx_port;
++	uart->tx_pin = gpio_pin_index(tx_pin);
++	uart->tx_bits = 8;
++	uart->tx_stop_bits = 1;
++
++	uart->rx_port = (unsigned int)rx_port;
++	uart->rx_pin = gpio_pin_index(rx_pin);
++	uart->rx_bits = 8;
++	uart->rx_stop_bits = 1;
++
++	uart->baud_rate = baud;
++
++	return 0;
++}
++
++enum ubi32_uarttio_parse_states {
++	UBI32_UARTTIO_PARSE_STATE_BAUD,
++	UBI32_UARTTIO_PARSE_STATE_TX_PIN,
++	UBI32_UARTTIO_PARSE_STATE_RX_PIN,
++	UBI32_UARTTIO_PARSE_STATE_HS,
++	UBI32_UARTTIO_PARSE_STATE_CTS_PIN,
++	UBI32_UARTTIO_PARSE_STATE_RTS_PIN,
++};
++
++/*
++ * ubi32_uarttio_parse_param
++ */
++static int ubi32_uarttio_parse_param(char *str)
++{
++	int res;
++	int i;
++	int baud = 0;
++	int tx_pin = 0;
++	int rx_pin = 0;
++	int hs = 0;
++	int cts_pin = 0;
++	int rts_pin = 0;
++	int nfound = 0;
++	enum ubi32_uarttio_parse_states state = UBI32_UARTTIO_PARSE_STATE_BAUD;
++	struct uarttio_uart *uart = uarttio_inst.regs->uarts;
++
++	/*
++	 * Run though the options and generate the proper structures
++	 */
++	res = get_option(&str, &i);
++	while ((res == 2) || (res == 1)) {
++		switch (state) {
++		case UBI32_UARTTIO_PARSE_STATE_BAUD:
++			/*
++			 * If we are here and nfound > 0 then create the port 
++			 * based on the previous input
++			 */
++			if (nfound) {
++				/*
++				 * Create the port
++				 */
++				if (ubi32_uarttio_setup_port(nfound - 1, uart, baud, tx_pin, rx_pin)) {
++					/*
++					 * Port was invalid
++					 */
++					goto fail;
++				} else {
++					printk(KERN_INFO "Serial port %d: tx=%d:rx=%d @ %d\n", nfound, tx_pin, rx_pin, baud);
++					uart++;
++				}
++			}
++
++			/*
++			 * Reset the variables and go to the next state
++			 */
++			hs = 0;
++			baud = i;
++			state = UBI32_UARTTIO_PARSE_STATE_TX_PIN;
++			break;
++
++		case UBI32_UARTTIO_PARSE_STATE_TX_PIN:
++			tx_pin = i;
++			state = UBI32_UARTTIO_PARSE_STATE_RX_PIN;
++			break;
++
++		case UBI32_UARTTIO_PARSE_STATE_RX_PIN:
++			rx_pin = i;
++			state = UBI32_UARTTIO_PARSE_STATE_HS;
++			break;
++
++		case UBI32_UARTTIO_PARSE_STATE_HS:
++			hs = i;
++			if (hs) {
++				state = UBI32_UARTTIO_PARSE_STATE_CTS_PIN;
++				break;
++			}
++
++			if (nfound == uarttio_inst.regs->max_uarts) {
++				printk(KERN_WARNING "Maximum number of serial ports reached\n");
++				goto done;
++			}
++			nfound++;
++			state = UBI32_UARTTIO_PARSE_STATE_BAUD;
++			break;
++
++		case UBI32_UARTTIO_PARSE_STATE_CTS_PIN:
++			cts_pin = i;
++			state = UBI32_UARTTIO_PARSE_STATE_RTS_PIN;
++			break;
++
++		case UBI32_UARTTIO_PARSE_STATE_RTS_PIN:
++			rts_pin = i;
++
++			if (nfound == uarttio_inst.regs->max_uarts) {
++				printk(KERN_WARNING "Maximum number of serial ports reached\n");
++				goto done;
++			}
++			nfound++;
++			state = UBI32_UARTTIO_PARSE_STATE_BAUD;
++			break;
++		}
++		res = get_option(&str, &i);
++	}
++
++	if ((res > 2) || state != UBI32_UARTTIO_PARSE_STATE_BAUD) {
++		printk(KERN_WARNING "Parameter syntax error.\n");
++		res = -EINVAL;
++		goto fail;
++	}
++
++	/*
++	 * Create the final port
++	 */
++	if (ubi32_uarttio_setup_port(nfound - 1, uart, baud, tx_pin, rx_pin)) {
++		goto fail;
++	}
++	printk(KERN_INFO "Serial port %d: tx=%d:rx=%d @ %d\n", nfound, tx_pin, rx_pin, baud);
++
++done:
++	uarttio_nports = nfound;
++
++	return nfound ? 0 : -ENODEV;
++
++fail:
++	/*
++	 * Reset the ports
++	 */
++	uart = uarttio_inst.regs->uarts;
++	for (i = 0; i < uarttio_inst.regs->max_uarts; i++) {
++		uart->flags = 0;
++		uart++;
++	}
++
++	return res;
++}
++
++/*
++ * ubi32_uarttio_probe
++ */
++static int ubi32_uarttio_probe(void)
++{
++	int ret;
++	struct uarttio_node *uart_node;
++	char *str = utio_ports_param;
++	static int probed;
++
++	/*
++	 * We only want to be probed once, we could be probed twice
++	 * for example if we are used as a console
++	 */
++	if (probed) {
++		return 0;
++	}
++	probed = 1;
++
++	/*
++	 * Extract the TIO name from the setup string
++	 */
++	while (*str) {
++		if (*str == ',') {
++			*str++ = 0;
++			break;
++		}
++		str++;
++	}
++
++	if (!*str) {
++		return -EINVAL;
++	}
++
++	uart_node = (struct uarttio_node *)devtree_find_node(utio_ports_param);
++	if (!uart_node) {
++		return -ENODEV;
++	}
++
++	uarttio_inst.irq = uart_node->dn.recvirq;
++	uarttio_inst.regs = uart_node->regs;
++
++	/*
++	 * Parse module parameters.
++	 */
++	ret = ubi32_uarttio_parse_param(str);
++	if (ret != 0) {
++		goto fail;
++	}
++
++	ubi32_uarttio_uart_driver.nr = uarttio_nports;
++
++	return 0;
++
++fail:
++	ubi32_uarttio_cleanup();
++	return ret;
++}
++
++#if defined(CONFIG_SERIAL_UBI32_UARTTIO_CONSOLE)
++/*
++ * ubi32_uarttio_console_setup
++ */
++static int __init ubi32_uarttio_console_setup(struct console *co, char *options)
++{
++	int baud;
++	int bits = 8;
++	int parity = 'n';
++	int flow = 'n';
++	struct ubi32_uarttio_port *uup;
++
++	/*
++	 * Check whether an invalid uart number has been specified, and
++	 * if so, search for the first available port that does have
++	 * console support.
++	 */
++	if (co->index == -1 || co->index >= uarttio_nports) {
++		co->index = 0;
++	}
++	uup = &uarttio_ports[co->index];
++	baud = uup->uart->baud_rate;
++	uup->uart->flags |= UARTTIO_UART_FLAG_ENABLED;
++
++	/*
++	 * Setup the GPIOs
++	 *	We have to use the direct interface because the gpio
++	 *	subsystem is not available at this point.
++	 */
++	uup->port_init = 1;
++	UBICOM32_GPIO_SET_PIN_HIGH(uup->tx_pin);
++	UBICOM32_GPIO_SET_PIN_OUTPUT(uup->tx_pin);
++	UBICOM32_GPIO_SET_PIN_INPUT(uup->rx_pin);
++
++	/*
++	 * Start the thread
++	 */
++	thread_enable(uarttio_inst.regs->thread);
++
++	/*
++	 * Process options
++	 */
++	if (options) {
++		uart_parse_options(options, &baud, &parity, &bits, &flow);
++		if (ubi32_uarttio_set_baud(uup, baud)) {
++			baud = uup->uart->current_baud_rate;
++		}
++	}
++
++	return uart_set_options(&uup->port, co, baud, 'n', 8, 'n');
++}
++
++/*
++ * ubi32_uarttio_console_putchar
++ */
++static void ubi32_uarttio_console_putchar(struct uart_port *port, int ch)
++{
++	struct ubi32_uarttio_port *uup = port->private_data;
++
++	while (ubi32_uarttio_put_char(uup->uart, ch)) {
++		cpu_relax();
++	}
++}
++
++/*
++ * ubi32_uarttio_console_write
++ *	Interrupts are disabled on entering
++ */
++static void ubi32_uarttio_console_write(struct console *co, const char *s, unsigned int count)
++{
++	struct uart_port *port = &(uarttio_ports[co->index].port);
++	unsigned long flags = 0;
++
++	spin_lock_irqsave(&port->lock, flags);
++	uart_console_write(port, s, count, ubi32_uarttio_console_putchar);
++	spin_unlock_irqrestore(&port->lock, flags);
++}
++
++static struct console ubi32_uarttio_console = {
++	.name		= UBI32_UARTTIO_NAME,
++	.write		= ubi32_uarttio_console_write,
++	.device		= uart_console_device,
++	.setup		= ubi32_uarttio_console_setup,
++	.flags		= CON_PRINTBUFFER,
++	.index		= -1,
++	.data		= &ubi32_uarttio_uart_driver,
++};
++
++static int __init ubi32_uarttio_console_init(void)
++{
++	int res;
++	
++	res = ubi32_uarttio_probe();
++	if (res) {
++		return res;
++	}
++
++	register_console(&ubi32_uarttio_console);
++	return 0;
++}
++console_initcall(ubi32_uarttio_console_init);
++#endif /* CONFIG_SERIAL_UBI32_UARTTIO_CONSOLE */
++
++/*
++ * ubi32_serial_suspend
++ */
++static int ubi32_uarttio_suspend(struct platform_device *pdev, pm_message_t state)
++{
++	int i;
++	for (i = 0; i < uarttio_nports; i++) {
++		uart_suspend_port(&ubi32_uarttio_uart_driver, &uarttio_ports[i].port);
++	}
++
++	return 0;
++}
++
++/*
++ * ubi32_serial_resume
++ */
++static int ubi32_uarttio_resume(struct platform_device *pdev)
++{
++	int i;
++	for (i = 0; i < uarttio_nports; i++) {
++		uart_resume_port(&ubi32_uarttio_uart_driver, &uarttio_ports[i].port);
++	}
++
++	return 0;
++}
++
++/*
++ * ubi32_uarttio_remove
++ */
++static int __devexit ubi32_uarttio_remove(struct platform_device *pdev)
++{
++	ubi32_uarttio_cleanup();
++
++	uart_unregister_driver(&ubi32_uarttio_uart_driver);
++
++	return 0;
++}
++
++static struct platform_driver ubi32_uarttio_platform_driver = {
++	.remove		= __devexit_p(ubi32_uarttio_remove),
++	.suspend	= ubi32_uarttio_suspend,
++	.resume		= ubi32_uarttio_resume,
++	.driver		= {
++		.name	= DRIVER_NAME,
++		.owner	= THIS_MODULE,
++	},
++};
++
++#ifndef MODULE
++/*
++ * Called at boot time.
++ *
++ * uarttio=TIONAME,(baud,tx_pin,rx_pin,handshake[,cts_pin,rts_pin],...)
++ *	TIONAME is the name of the devtree node which describes the UARTTIO
++ *	pin is the index of the pin, i.e. PA4 is 5 [(port * 32) + pin]
++ *	handshake = 1 to enable handshaking, provide cts_pin, rts_pin (UNSUPPORTED)
++ *	handshake = 0 to disable handshaking, do not provide cts_pin, rts_pin
++ *	Ex: uarttio=UARTTIO,57600,7,6,0,9600,8,9,0
++ */
++static int __init ubi32_uarttio_setup(char *str)
++{
++	strncpy(utio_ports_param, str, UBI32_UARTTIO_MAX_PARAM_LEN);
++	utio_ports_param[UBI32_UARTTIO_MAX_PARAM_LEN - 1] = 0;
++	return 1;
++}
++__setup("uarttio=", ubi32_uarttio_setup);
++#endif
++
++/*
++ * ubi32_uarttio_init
++ */
++static int __init ubi32_uarttio_init(void)
++{
++	int ret;
++	int i;
++
++	ret = ubi32_uarttio_probe();
++	if (ret) {
++		return ret;
++	}
++
++	/*
++	 * Request the IRQ (do it here since many ports share the same IRQ)
++	 */
++	ret = request_irq(uarttio_inst.irq, ubi32_uarttio_isr, IRQF_DISABLED, DRIVER_NAME, NULL);
++	if (ret != 0) {
++		printk(KERN_WARNING "Could not request IRQ %d\n", uarttio_inst.irq);
++		goto fail;
++	}
++	uarttio_inst.irq_requested = 1;
++
++	/*
++	 * Register the UART driver and add the ports
++	 */
++	ret = uart_register_driver(&ubi32_uarttio_uart_driver);
++	if (ret != 0) {
++		goto fail;
++	}
++	uarttio_inst.driver_registered = 1;
++
++	ret = ubi32_uarttio_add_ports();
++	if (ret != 0) {
++		ubi32_uarttio_cleanup();
++		return ret;
++	}
++
++	/*
++	 * Start the thread
++	 */
++	thread_enable(uarttio_inst.regs->thread);
++
++	for (i = 0; i < uarttio_nports; i++) {
++		pr_info("Serial: Ubicom32 uarttio #%d: tx:%d rx:%d baud:%d\n", 
++			i, uarttio_ports[i].tx_pin, uarttio_ports[i].rx_pin,
++			uarttio_ports[i].uart->current_baud_rate);
++	}
++	pr_info("Serial: Ubicom32 uarttio started on thread:%d irq:%d\n", uarttio_inst.regs->thread, uarttio_inst.irq);
++
++	return ret;
++
++fail:
++	ubi32_uarttio_cleanup();
++	return ret;
++}
++module_init(ubi32_uarttio_init);
++
++/*
++ * ubi32_uarttio_exit
++ */
++static void __exit ubi32_uarttio_exit(void)
++{
++	platform_driver_unregister(&ubi32_uarttio_platform_driver);
++}
++module_exit(ubi32_uarttio_exit);
++
++module_param_string(ports, utio_ports_param, sizeof(utio_ports_param), 0444);
++MODULE_PARM_DESC(ports, "Sets the ports to allocate: ports=TIONAME,(baud,txpin,rxpin,handshake[,ctspin,rtspin],...)\n"
++			"     TIONAME is the name of the devtree node which describes the UARTTIO\n"
++			"     pin is the index of the pin, i.e. PA4 is 5 [(port * 32) + pin]\n"
++			"     handshake = 1 to enable handshaking, provide ctspin, rtspin (UNSUPPORTED)\n"
++			"     handshake = 0 to disable handshaking, do not provide ctspin, rtspin\n"
++			"     Ex: ports=UARTTIO,57600,7,6,0,9600,8,9,0\n");
++MODULE_AUTHOR("Patrick Tjin <pat.tjin@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom serial virtual peripherial driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_CHARDEV_MAJOR(UBI32_UARTTIO_MAJOR);
++MODULE_ALIAS("platform:" DRIVER_NAME);
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -196,6 +196,15 @@ config SPI_S3C24XX
+ 	help
+ 	  SPI driver for Samsung S3C24XX series ARM SoCs
+ 
++config SPI_UBICOM32_GPIO
++	tristate "Ubicom32 SPI over GPIO"
++	depends on SPI_MASTER && UBICOM32 && EXPERIMENTAL
++	select SPI_BITBANG
++	select HAS_DMA
++	help
++	  SPI driver for the Ubicom32 architecture using
++	  GPIO lines to provide the SPI bus.
++	  
+ config SPI_S3C24XX_GPIO
+ 	tristate "Samsung S3C24XX series SPI by GPIO"
+ 	depends on ARCH_S3C2410 && EXPERIMENTAL
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -27,6 +27,7 @@ obj-$(CONFIG_SPI_ORION)			+= orion_spi.o
+ obj-$(CONFIG_SPI_MPC52xx_PSC)		+= mpc52xx_psc_spi.o
+ obj-$(CONFIG_SPI_MPC83xx)		+= spi_mpc83xx.o
+ obj-$(CONFIG_SPI_S3C24XX_GPIO)		+= spi_s3c24xx_gpio.o
++obj-$(CONFIG_SPI_UBICOM32_GPIO)		+= spi_ubicom32_gpio.o
+ obj-$(CONFIG_SPI_S3C24XX)		+= spi_s3c24xx.o
+ obj-$(CONFIG_SPI_TXX9)			+= spi_txx9.o
+ obj-$(CONFIG_SPI_XILINX)		+= xilinx_spi.o
+--- /dev/null
++++ b/drivers/spi/spi_ubicom32_gpio.c
+@@ -0,0 +1,268 @@
++/*
++ * drivers/spi_spi_ubicom32_gpio.c
++ *	Ubicom32 GPIO based SPI driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/spinlock.h>
++#include <linux/workqueue.h>
++#include <linux/platform_device.h>
++
++#include <linux/spi/spi.h>
++#include <linux/spi/spi_bitbang.h>
++
++#include <linux/gpio.h>
++
++#include <asm/ip5000.h>
++#include <asm/ubicom32-spi-gpio.h>
++
++#define DRIVER_NAME "ubicom32-spi-gpio"
++
++struct ubicom32_spi_gpio {
++	struct spi_bitbang			 bitbang;
++
++	struct ubicom32_spi_gpio_platform_data	*pdata;
++
++	struct platform_device			*dev;
++};
++
++/*
++ * The following 4 functions are used by EXPAND_BITBANG_TXRX to bitbang the data out.
++ */
++static inline void setsck(struct spi_device *dev, int on)
++{
++	struct ubicom32_spi_gpio *usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(dev->master);
++	gpio_set_value(usg->pdata->pin_clk, on ? 1 : 0);
++}
++
++static inline void setmosi(struct spi_device *dev, int on)
++{
++	struct ubicom32_spi_gpio *usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(dev->master);
++	gpio_set_value(usg->pdata->pin_mosi, on ? 1 : 0);
++}
++
++static inline u32 getmiso(struct spi_device *dev)
++{
++	struct ubicom32_spi_gpio *usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(dev->master);
++	return gpio_get_value(usg->pdata->pin_miso) ? 1 : 0;
++}
++
++#define spidelay(x) ndelay(x)
++
++#define	EXPAND_BITBANG_TXRX
++#include <linux/spi/spi_bitbang.h>
++
++/*
++ * ubicom32_spi_gpio_txrx_mode0
++ */
++static u32 ubicom32_spi_gpio_txrx_mode0(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits)
++{
++	return bitbang_txrx_be_cpha0(spi, nsecs, 0, word, bits);
++}
++
++/*
++ * ubicom32_spi_gpio_txrx_mode1
++ */
++static u32 ubicom32_spi_gpio_txrx_mode1(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits)
++{
++	return bitbang_txrx_be_cpha1(spi, nsecs, 0, word, bits);
++}
++
++/*
++ * ubicom32_spi_gpio_txrx_mode2
++ */
++static u32 ubicom32_spi_gpio_txrx_mode2(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits)
++{
++	return bitbang_txrx_be_cpha0(spi, nsecs, 1, word, bits);
++}
++
++/*
++ * ubicom32_spi_gpio_txrx_mode3
++ */
++static u32 ubicom32_spi_gpio_txrx_mode3(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits)
++{
++	return bitbang_txrx_be_cpha1(spi, nsecs, 1, word, bits);
++}
++
++/*
++ * ubicom32_spi_gpio_chipselect
++ */
++static void ubicom32_spi_gpio_chipselect(struct spi_device *dev, int value)
++{
++	struct ubicom32_spi_gpio_controller_data *cd = (struct ubicom32_spi_gpio_controller_data *)dev->controller_data;
++	unsigned int cs_polarity = dev->mode & SPI_CS_HIGH ? 1 : 0;
++
++	if (value == BITBANG_CS_ACTIVE) {
++		gpio_set_value(cd->pin_cs, cs_polarity);
++		return;
++	}
++	gpio_set_value(cd->pin_cs, !cs_polarity);
++}
++
++/*
++ * ubicom32_spi_gpio_probe
++ */
++static int ubicom32_spi_gpio_probe(struct platform_device *dev)
++{
++	struct ubicom32_spi_gpio_platform_data *pdata;
++	struct spi_master *master;
++	struct ubicom32_spi_gpio *usg;
++	int ret;
++
++	master = spi_alloc_master(&dev->dev, sizeof(struct ubicom32_spi_gpio));
++	if (master == NULL) {
++		dev_err(&dev->dev, "failed to allocate spi master\n");
++		ret = -ENOMEM;
++		goto err;
++	}
++
++	usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(master);
++
++	platform_set_drvdata(dev, usg);
++
++	/* 
++	 * Copy in the platform data
++	 */
++	pdata = dev->dev.platform_data;
++	usg->pdata = dev->dev.platform_data;
++
++	/*
++	 * Request the GPIO lines
++	 */
++	ret = gpio_request(pdata->pin_mosi, "spi-mosi");
++	if (ret) {
++		dev_err(&dev->dev, "Failed to allocate spi-mosi GPIO\n");
++		goto err;
++	}
++
++	ret = gpio_request(pdata->pin_miso, "spi-miso");
++	if (ret) {
++		dev_err(&dev->dev, "Failed to allocate spi-miso GPIO\n");
++		goto err_nomiso;
++	}
++
++	ret = gpio_request(pdata->pin_clk, "spi-clk");
++	if (ret) {
++		dev_err(&dev->dev, "Failed to allocate spi-clk GPIO\n");
++		goto err_noclk;
++	}
++
++	/*
++	 * Setup spi-bitbang adaptor
++	 */
++	usg->bitbang.flags |= SPI_CS_HIGH;
++	usg->bitbang.master = spi_master_get(master);
++	usg->bitbang.master->bus_num = pdata->bus_num;
++	usg->bitbang.master->num_chipselect = pdata->num_chipselect;
++	usg->bitbang.chipselect = ubicom32_spi_gpio_chipselect;
++
++	usg->bitbang.txrx_word[SPI_MODE_0] = ubicom32_spi_gpio_txrx_mode0;
++	usg->bitbang.txrx_word[SPI_MODE_1] = ubicom32_spi_gpio_txrx_mode1;
++	usg->bitbang.txrx_word[SPI_MODE_2] = ubicom32_spi_gpio_txrx_mode2;
++	usg->bitbang.txrx_word[SPI_MODE_3] = ubicom32_spi_gpio_txrx_mode3;
++
++	/*
++	 * Setup the GPIO pins
++	 */
++	gpio_direction_output(pdata->pin_clk, pdata->clk_default);
++	gpio_direction_output(pdata->pin_mosi, 0);
++	gpio_direction_input(pdata->pin_miso);
++
++	/*
++	 * Ready to go
++	 */
++	ret = spi_bitbang_start(&usg->bitbang);
++	if (ret) {
++		goto err_no_bitbang;
++	}
++
++	return 0;
++
++err_no_bitbang:
++	spi_master_put(usg->bitbang.master);
++
++	gpio_free(pdata->pin_clk);
++
++err_noclk:
++	gpio_free(pdata->pin_miso);
++
++err_nomiso:
++	gpio_free(pdata->pin_mosi);
++
++err:
++	return ret;
++}
++
++/*
++ * ubicom32_spi_gpio_remove
++ */
++static int ubicom32_spi_gpio_remove(struct platform_device *dev)
++{
++	struct ubicom32_spi_gpio *sp = platform_get_drvdata(dev);
++
++	spi_bitbang_stop(&sp->bitbang);
++	spi_master_put(sp->bitbang.master);
++
++	return 0;
++}
++
++/*
++ * Work with hotplug and coldplug
++ */
++MODULE_ALIAS("platform:ubicom32_spi_gpio");
++
++static struct platform_driver ubicom32_spi_gpio_drv = {
++	.probe		= ubicom32_spi_gpio_probe,
++        .remove		= ubicom32_spi_gpio_remove,
++        .driver		= {
++		.name	= DRIVER_NAME,
++		.owner	= THIS_MODULE,
++        },
++};
++
++/*
++ * ubicom32_spi_gpio_init
++ */
++static int __init ubicom32_spi_gpio_init(void)
++{
++        return platform_driver_register(&ubicom32_spi_gpio_drv);
++}
++
++/*
++ * ubicom32_spi_gpio_exit
++ */
++static void __exit ubicom32_spi_gpio_exit(void)
++{
++        platform_driver_unregister(&ubicom32_spi_gpio_drv);
++}
++
++module_init(ubicom32_spi_gpio_init);
++module_exit(ubicom32_spi_gpio_exit);
++
++MODULE_DESCRIPTION("Ubicom32 SPI-GPIO Driver");
++MODULE_AUTHOR("Pat Tjin, <@ubicom.com>");
++MODULE_LICENSE("GPL");
+--- a/drivers/uio/Kconfig
++++ b/drivers/uio/Kconfig
+@@ -71,4 +71,12 @@ config UIO_SERCOS3
+ 
+ 	  If you compile this as a module, it will be called uio_sercos3.
+ 
++config UIO_UBICOM32RING
++	tristate "Ubicom32 Ring Buffer driver"
++	default n
++	help
++	  Userspace I/O interface for a Ubicom32 Ring Buffer.
++
++	  If you compile this as a module, it will be called uio_ubicom32ring
++
+ endif
+--- a/drivers/uio/Makefile
++++ b/drivers/uio/Makefile
+@@ -4,3 +4,4 @@ obj-$(CONFIG_UIO_PDRV)	+= uio_pdrv.o
+ obj-$(CONFIG_UIO_PDRV_GENIRQ)	+= uio_pdrv_genirq.o
+ obj-$(CONFIG_UIO_SMX)	+= uio_smx.o
+ obj-$(CONFIG_UIO_SERCOS3)	+= uio_sercos3.o
++obj-$(CONFIG_UIO_UBICOM32RING)	+= uio_ubicom32ring.o
+--- /dev/null
++++ b/drivers/uio/uio_ubicom32ring.c
+@@ -0,0 +1,289 @@
++/*
++ * drivers/uio/uio_ubicom32ring.c
++ *
++ * Userspace I/O platform driver for Ubicom32 ring buffers
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * Based on uio_ubicom32ring.c by Magnus Damm
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/platform_device.h>
++#include <linux/uio_driver.h>
++#include <linux/spinlock.h>
++#include <linux/bitops.h>
++#include <linux/interrupt.h>
++#include <linux/stringify.h>
++
++#include <asm/ip5000.h>
++#include <asm/ubicom32ring.h>
++
++#define DRIVER_NAME "uio_ubicom32ring"
++
++struct uio_ubicom32ring_data {
++	struct uio_info			*uioinfo;
++
++	struct uio_ubicom32ring_regs	*regs;
++
++	/*
++	 * IRQ used to kick the ring buffer
++	 */
++	int				irq_tx;
++	int				irq_rx;
++
++	spinlock_t			lock;
++
++	unsigned long			flags;
++
++	char				name[0];
++};
++
++static irqreturn_t uio_ubicom32ring_handler(int irq, struct uio_info *dev_info)
++{
++	struct uio_ubicom32ring_data *priv = dev_info->priv;
++
++	/* Just disable the interrupt in the interrupt controller, and
++	 * remember the state so we can allow user space to enable it later.
++	 */
++
++	if (!test_and_set_bit(0, &priv->flags))
++		disable_irq_nosync(irq);
++
++	return IRQ_HANDLED;
++}
++
++static int uio_ubicom32ring_irqcontrol(struct uio_info *dev_info, s32 irq_on)
++{
++	struct uio_ubicom32ring_data *priv = dev_info->priv;
++	unsigned long flags;
++
++	/* Allow user space to enable and disable the interrupt
++	 * in the interrupt controller, but keep track of the
++	 * state to prevent per-irq depth damage.
++	 *
++	 * Serialize this operation to support multiple tasks.
++	 */
++
++	spin_lock_irqsave(&priv->lock, flags);
++
++	if (irq_on & 2) {
++		/*
++		 * Kick the ring buffer (if we can)
++		 */
++		if (priv->irq_tx != 0xFF) {
++			ubicom32_set_interrupt(priv->irq_tx);
++		}
++	}
++	
++	if (priv->irq_rx != 0xFF) {
++		if (irq_on & 1) {
++			if (test_and_clear_bit(0, &priv->flags))
++				enable_irq(dev_info->irq);
++		} else {
++			if (!test_and_set_bit(0, &priv->flags))
++				disable_irq(dev_info->irq);
++		}
++	}
++
++	spin_unlock_irqrestore(&priv->lock, flags);
++
++	return 0;
++}
++
++static int uio_ubicom32ring_probe(struct platform_device *pdev)
++{
++	struct uio_info *uioinfo;
++	struct uio_mem *uiomem;
++	struct uio_ubicom32ring_data *priv;
++	struct uio_ubicom32ring_regs *regs;
++	struct resource *mem_resource;
++	struct resource *irqtx_resource;
++	struct resource *irqrx_resource;
++	int ret = -EINVAL;
++	int i;
++
++	uioinfo = kzalloc(sizeof(struct uio_info), GFP_KERNEL);
++	if (!uioinfo) {
++		dev_err(&pdev->dev, "unable to kmalloc\n");
++		return -ENOMEM;
++	}
++
++	/*
++	 * Allocate private data with some string space after
++	 */
++	i = sizeof(DRIVER_NAME) + 1;
++	i += pdev->dev.platform_data ? strlen(pdev->dev.platform_data) : 0;
++	priv = kzalloc(sizeof(struct uio_ubicom32ring_data) + i, GFP_KERNEL);
++	if (!priv) {
++		dev_err(&pdev->dev, "unable to kmalloc\n");
++		kfree(uioinfo);
++		return -ENOMEM;
++	}
++
++	strcpy(priv->name, DRIVER_NAME ":");
++	if (pdev->dev.platform_data) {
++		strcat(priv->name, pdev->dev.platform_data);
++	}
++	uioinfo->priv = priv;
++	uioinfo->name = priv->name;
++	uioinfo->version = "0.1";
++
++	priv->uioinfo = uioinfo;
++	spin_lock_init(&priv->lock);
++	priv->flags = 0; /* interrupt is enabled to begin with */
++
++	/*
++	 * Get our resources, the IRQ_TX and IRQ_RX are optional.
++	 */
++	priv->irq_tx = 0xFF;
++	irqtx_resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
++	if (irqtx_resource) {
++		priv->irq_tx = irqtx_resource->start;
++	}
++
++	uioinfo->irq = -1;
++	priv->irq_rx = 0xFF;
++	irqrx_resource = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
++	if (irqrx_resource) {
++		priv->irq_rx = irqrx_resource->start;
++		uioinfo->irq = priv->irq_rx;
++		uioinfo->handler = uio_ubicom32ring_handler;
++	}
++
++	mem_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (!mem_resource || !mem_resource->start) {
++		dev_err(&pdev->dev, "No valid memory resource found\n");
++		ret = -ENODEV;
++		goto fail;
++	}
++	regs = (struct uio_ubicom32ring_regs *)mem_resource->start;
++	priv->regs = regs;
++
++	if (regs->version != UIO_UBICOM32RING_REG_VERSION) {
++		dev_err(&pdev->dev, "version %d not supported\n", regs->version);
++		ret = -ENODEV;
++		goto fail;
++	}
++
++	/*
++	 * First range is the shared register space, if we have any
++	 */
++	uiomem = &uioinfo->mem[0];
++	if (regs->regs_size) {
++		uiomem->memtype = UIO_MEM_PHYS;
++		uiomem->addr = (u32_t)regs->regs;
++		uiomem->size = regs->regs_size;
++		++uiomem;
++		dev_info(&pdev->dev, "regs:%p (%u) / rings: %d found\n", regs->regs, regs->regs_size, regs->num_rings);
++	} else {
++		dev_info(&pdev->dev, "rings: %d found\n", regs->num_rings);
++	}
++
++	/*
++	 * The rest of the range correspond to the rings
++	 */
++	for (i = 0; i < regs->num_rings; i++) {
++		dev_info(&pdev->dev, "\t%d: entries:%d ring:%p\n", 
++			 i, regs->rings[i]->entries, &(regs->rings[i]->ring));
++		if (uiomem >= &uioinfo->mem[MAX_UIO_MAPS]) {
++			dev_warn(&pdev->dev, "device has more than "
++					__stringify(MAX_UIO_MAPS)
++					" I/O memory resources.\n");
++			break;
++		}
++
++		uiomem->memtype = UIO_MEM_PHYS;
++		uiomem->addr = (u32_t)&(regs->rings[i]->head);
++		uiomem->size = (regs->rings[i]->entries * sizeof(u32_t)) + 
++				sizeof(struct uio_ubicom32ring_desc);
++		++uiomem;
++	}
++
++	while (uiomem < &uioinfo->mem[MAX_UIO_MAPS]) {
++		uiomem->size = 0;
++		++uiomem;
++	}
++
++	/* This driver requires no hardware specific kernel code to handle
++	 * interrupts. Instead, the interrupt handler simply disables the
++	 * interrupt in the interrupt controller. User space is responsible
++	 * for performing hardware specific acknowledge and re-enabling of
++	 * the interrupt in the interrupt controller.
++	 *
++	 * Interrupt sharing is not supported.
++	 */
++	uioinfo->irq_flags = IRQF_DISABLED;
++	uioinfo->irqcontrol = uio_ubicom32ring_irqcontrol;
++
++	ret = uio_register_device(&pdev->dev, priv->uioinfo);
++	if (ret) {
++		dev_err(&pdev->dev, "unable to register uio device\n");
++		goto fail;
++	}
++
++	platform_set_drvdata(pdev, priv);
++
++	dev_info(&pdev->dev, "'%s' using irq: rx %d tx %d, regs %p\n", 
++		 priv->name, priv->irq_rx, priv->irq_tx, priv->regs);
++
++	return 0;
++
++fail:
++	kfree(uioinfo);
++	kfree(priv);
++	return ret;
++}
++
++static int uio_ubicom32ring_remove(struct platform_device *pdev)
++{
++	struct uio_ubicom32ring_data *priv = platform_get_drvdata(pdev);
++
++	uio_unregister_device(priv->uioinfo);
++	kfree(priv->uioinfo);
++	kfree(priv);
++	return 0;
++}
++
++static struct platform_driver uio_ubicom32ring = {
++	.probe = uio_ubicom32ring_probe,
++	.remove = uio_ubicom32ring_remove,
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++	},
++};
++
++static int __init uio_ubicom32ring_init(void)
++{
++	return platform_driver_register(&uio_ubicom32ring);
++}
++
++static void __exit uio_ubicom32ring_exit(void)
++{
++	platform_driver_unregister(&uio_ubicom32ring);
++}
++
++module_init(uio_ubicom32ring_init);
++module_exit(uio_ubicom32ring_exit);
++
++MODULE_AUTHOR("Patrick Tjin");
++MODULE_DESCRIPTION("Userspace I/O driver for Ubicom32 ring buffers");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:" DRIVER_NAME);
++
+--- a/drivers/usb/gadget/epautoconf.c
++++ b/drivers/usb/gadget/epautoconf.c
+@@ -154,6 +154,10 @@ ep_matches (
+ 			/* configure your hardware with enough buffering!! */
+ 		}
+ 		break;
++	
++	case USB_ENDPOINT_XFER_BULK:
++		if ((gadget->is_dualspeed) && (ep->maxpacket < 512))
++			return 0;
+ 	}
+ 
+ 	/* MATCH!! */
+@@ -174,7 +178,7 @@ ep_matches (
+ 			return 0;
+ 		desc->bEndpointAddress |= epnum;
+ 	}
+-
++	
+ 	/* report (variable) full speed bulk maxpacket */
+ 	if (USB_ENDPOINT_XFER_BULK == type) {
+ 		int size = ep->maxpacket;
+--- a/drivers/usb/Kconfig
++++ b/drivers/usb/Kconfig
+@@ -22,6 +22,7 @@ config USB_ARCH_HAS_HCD
+ 	default y if PCMCIA && !M32R			# sl811_cs
+ 	default y if ARM				# SL-811
+ 	default y if SUPERH				# r8a66597-hcd
++	default y if UBICOM32				# Ubicom's onchip USB Duial role controller
+ 	default PCI
+ 
+ # many non-PCI SOC chips embed OHCI
+--- a/drivers/usb/musb/Kconfig
++++ b/drivers/usb/musb/Kconfig
+@@ -11,7 +11,7 @@ config USB_MUSB_HDRC
+ 	depends on (USB || USB_GADGET) && HAVE_CLK
+ 	depends on !SUPERH
+ 	select TWL4030_USB if MACH_OMAP_3430SDP
+-	tristate 'Inventra Highspeed Dual Role Controller (TI, ...)'
++	tristate 'Inventra Highspeed Dual Role Controller (TI, Ubicom, ...)'
+ 	help
+ 	  Say Y here if your system has a dual role high speed USB
+ 	  controller based on the Mentor Graphics silicon IP.  Then
+--- a/drivers/usb/musb/Makefile
++++ b/drivers/usb/musb/Makefile
+@@ -22,6 +22,10 @@ ifeq ($(CONFIG_ARCH_OMAP3430),y)
+ 	musb_hdrc-objs	+= omap2430.o
+ endif
+ 
++ifeq ($(CONFIG_UBICOM32), y)
++        musb_hdrc-objs  += ubi32_usb.o
++endif
++
+ ifeq ($(CONFIG_USB_GADGET_MUSB_HDRC),y)
+ 	musb_hdrc-objs		+= musb_gadget_ep0.o musb_gadget.o
+ endif
+--- a/drivers/usb/musb/musb_core.c
++++ b/drivers/usb/musb/musb_core.c
+@@ -105,6 +105,13 @@
+ #include <asm/mach-types.h>
+ #endif
+ 
++#ifdef CONFIG_UBICOM32
++#include <asm/ip5000.h>
++#include <asm/ubicom32-tio.h>
++extern void ubi32_usb_init(void);
++extern void ubi32_usb_int_clr(void);
++#endif
++
+ #include "musb_core.h"
+ 
+ 
+@@ -147,7 +154,7 @@ static inline struct musb *dev_to_musb(s
+ }
+ 
+ /*-------------------------------------------------------------------------*/
+-
++#ifndef CONFIG_UBICOM32
+ #ifndef CONFIG_USB_TUSB6010
+ /*
+  * Load an endpoint's FIFO
+@@ -226,8 +233,38 @@ void musb_read_fifo(struct musb_hw_ep *h
+ 		readsb(fifo, dst, len);
+ 	}
+ }
++#endif /* T6010 */
++#else /* UBICOM */
++
++/*
++ * Load an endpoint's FIFO
++ */
++void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 wCount, const u8 *pSource)
++{
++	void __iomem *fifo = hw_ep->fifo;
++
++	prefetch((u8 *)pSource);
++
++	DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
++			'T', hw_ep->epnum, fifo, wCount, pSource);
++
++	usb_tio_write_fifo((u32)fifo, (u32)pSource, wCount);
++
++}
+ 
+-#endif	/* normal PIO */
++
++/*
++ * Unload an endpoint's FIFO
++ */
++void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 wCount, u8 *pDest)
++{
++
++	void __iomem *fifo = hw_ep->fifo;
++	DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
++			'R', hw_ep->epnum, fifo, wCount, pDest);
++	usb_tio_read_fifo((u32)fifo, (u32)pDest, wCount);
++}
++#endif /* CONFIG_UBICOM32 */
+ 
+ 
+ /*-------------------------------------------------------------------------*/
+@@ -872,12 +909,19 @@ void musb_start(struct musb *musb)
+ 	musb_writeb(regs, MUSB_TESTMODE, 0);
+ 
+ 	/* put into basic highspeed mode and start session */
++#ifndef CONFIG_UBICOM32
+ 	musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE
+ 						| MUSB_POWER_SOFTCONN
+ 						| MUSB_POWER_HSENAB
+ 						/* ENSUSPEND wedges tusb */
+ 						/* | MUSB_POWER_ENSUSPEND */
+ 						);
++#else
++	musb_writeb(regs, MUSB_POWER,  MUSB_POWER_HSENAB
++						/* ENSUSPEND wedges tusb */
++						/* | MUSB_POWER_ENSUSPEND */
++						);
++#endif
+ 
+ 	musb->is_active = 0;
+ 	devctl = musb_readb(regs, MUSB_DEVCTL);
+@@ -1079,6 +1123,7 @@ static struct fifo_cfg __initdata mode_4
+ };
+ 
+ 
++#ifndef CONFIG_UBICOM32
+ /*
+  * configure a fifo; for non-shared endpoints, this may be called
+  * once for a tx fifo and once for an rx fifo.
+@@ -1238,7 +1283,7 @@ static int __init ep_config_from_table(s
+ 
+ 	return 0;
+ }
+-
++#endif /* CONFIG_UBICOM32 */
+ 
+ /*
+  * ep_config_from_hw - when MUSB_C_DYNFIFO_DEF is false
+@@ -1253,13 +1298,23 @@ static int __init ep_config_from_hw(stru
+ 	DBG(2, "<== static silicon ep config\n");
+ 
+ 	/* FIXME pick up ep0 maxpacket size */
++#ifdef CONFIG_UBICOM32
++	/* set ep0 to shared_fifo, otherwise urb will be put to out_qh but ep0_irq try to get the urb from in_qh*/
++	hw_ep = musb->endpoints;
++	hw_ep->is_shared_fifo = true;
++#endif
+ 
+ 	for (epnum = 1; epnum < musb->config->num_eps; epnum++) {
+ 		musb_ep_select(mbase, epnum);
+ 		hw_ep = musb->endpoints + epnum;
+ 
+ 		/* read from core using indexed model */
++#ifndef CONFIG_UBICOM32
+ 		reg = musb_readb(hw_ep->regs, 0x10 + MUSB_FIFOSIZE);
++#else
++		reg = musb_readb(musb->mregs, 0x10 + MUSB_FIFOSIZE);
++#endif
++
+ 		if (!reg) {
+ 			/* 0's returned when no more endpoints */
+ 			break;
+@@ -1272,8 +1327,10 @@ static int __init ep_config_from_hw(stru
+ 		/* shared TX/RX FIFO? */
+ 		if ((reg & 0xf0) == 0xf0) {
+ 			hw_ep->max_packet_sz_rx = hw_ep->max_packet_sz_tx;
+-			hw_ep->is_shared_fifo = true;
+-			continue;
++			hw_ep->is_shared_fifo = true;			
++#ifndef CONFIG_UBICOM32
++			continue; /* For ubicom processors, shared ep is all we get */
++#endif
+ 		} else {
+ 			hw_ep->max_packet_sz_rx = 1 << ((reg & 0xf0) >> 4);
+ 			hw_ep->is_shared_fifo = false;
+@@ -1290,17 +1347,30 @@ static int __init ep_config_from_hw(stru
+ 		/* REVISIT:  this algorithm is lazy, we should at least
+ 		 * try to pick a double buffered endpoint.
+ 		 */
++#ifndef CONFIG_UBICOM32
+ 		if (musb->bulk_ep)
+ 			continue;
+ 		musb->bulk_ep = hw_ep;
++#else
++		if ((musb->bulk_ep_in) && (musb->bulk_ep_out))
++			continue;
++		/* Save theEP with 1024 Bytes FIFO for ISO */
++		if(hw_ep->max_packet_sz_tx == 512) {
++			if (!musb->bulk_ep_in) {
++				musb->bulk_ep_in = hw_ep;
++			} else if (!musb->bulk_ep_out) {
++				musb->bulk_ep_out = hw_ep;
++			}
++		}
++#endif /* CONFIG_UBICOM32 */
+ #endif
+ 	}
+ 
+ #ifdef CONFIG_USB_MUSB_HDRC_HCD
+-	if (!musb->bulk_ep) {
++	if ((!musb->bulk_ep_in) || (!musb->bulk_ep_out)) {
+ 		pr_debug("%s: missing bulk\n", musb_driver_name);
+ 		return -EINVAL;
+-	}
++	}	
+ #endif
+ 
+ 	return 0;
+@@ -1408,12 +1478,16 @@ static int __init musb_core_init(u16 mus
+ 	musb->epmask = 1;
+ 
+ 	if (reg & MUSB_CONFIGDATA_DYNFIFO) {
++#ifndef CONFIG_UBICOM32
+ 		if (musb->config->dyn_fifo)
+ 			status = ep_config_from_table(musb);
+-		else {
++		else
++#endif
++		{
+ 			ERR("reconfigure software for Dynamic FIFOs\n");
+ 			status = -ENODEV;
+ 		}
++
+ 	} else {
+ 		if (!musb->config->dyn_fifo)
+ 			status = ep_config_from_hw(musb);
+@@ -1477,8 +1551,8 @@ static int __init musb_core_init(u16 mus
+ 
+ /*-------------------------------------------------------------------------*/
+ 
+-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430)
+-
++#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430) || defined(CONFIG_UBICOM32)
++static u32_t musb_int_count = 0;
+ static irqreturn_t generic_interrupt(int irq, void *__hci)
+ {
+ 	unsigned long	flags;
+@@ -1487,10 +1561,17 @@ static irqreturn_t generic_interrupt(int
+ 
+ 	spin_lock_irqsave(&musb->lock, flags);
+ 
++#ifndef CONFIG_UBICOM32
+ 	musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
+ 	musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
+ 	musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
++#else
++	musb_read_int_status(&musb->int_usb, &musb->int_tx, &musb->int_rx);
++	//ubi32_usb_int_clr();
++	musb_int_count++;
++#endif
+ 
++	DBG(4, "usb %x, tx %x, rx %x", musb->int_usb, musb->int_tx, musb->int_rx);
+ 	if (musb->int_usb || musb->int_tx || musb->int_rx)
+ 		retval = musb_interrupt(musb);
+ 
+@@ -2222,6 +2303,10 @@ static struct platform_driver musb_drive
+ 
+ static int __init musb_init(void)
+ {
++#ifdef CONFIG_UBICOM32
++	ubi32_usb_init();
++#endif
++
+ #ifdef CONFIG_USB_MUSB_HDRC_HCD
+ 	if (usb_disabled())
+ 		return 0;
+--- a/drivers/usb/musb/musb_core.h
++++ b/drivers/usb/musb/musb_core.h
+@@ -326,7 +326,9 @@ struct musb {
+ 	 * queue until it completes or NAKs too much; then we try the next
+ 	 * endpoint.
+ 	 */
+-	struct musb_hw_ep	*bulk_ep;
++	//struct musb_hw_ep	*bulk_ep;
++	struct musb_hw_ep	*bulk_ep_in;	//ubicom
++	struct musb_hw_ep	*bulk_ep_out;
+ 
+ 	struct list_head	control;	/* of musb_qh */
+ 	struct list_head	in_bulk;	/* of musb_qh */
+@@ -467,7 +469,7 @@ extern void musb_platform_disable(struct
+ 
+ extern void musb_hnp_stop(struct musb *musb);
+ 
+-extern void musb_platform_set_mode(struct musb *musb, u8 musb_mode);
++extern int musb_platform_set_mode(struct musb *musb, u8 musb_mode);
+ 
+ #if defined(CONFIG_USB_TUSB6010) || \
+ 	defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX)
+--- a/drivers/usb/musb/musb_gadget.c
++++ b/drivers/usb/musb/musb_gadget.c
+@@ -421,7 +421,7 @@ void musb_g_tx(struct musb *musb, u8 epn
+ 		 * probably rates reporting as a host error
+ 		 */
+ 		if (csr & MUSB_TXCSR_P_SENTSTALL) {
+-			csr |= MUSB_TXCSR_P_WZC_BITS;
++			csr &= ~(MUSB_TXCSR_P_WZC_BITS);
+ 			csr &= ~MUSB_TXCSR_P_SENTSTALL;
+ 			musb_writew(epio, MUSB_TXCSR, csr);
+ 			if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
+@@ -437,7 +437,7 @@ void musb_g_tx(struct musb *musb, u8 epn
+ 
+ 		if (csr & MUSB_TXCSR_P_UNDERRUN) {
+ 			/* we NAKed, no big deal ... little reason to care */
+-			csr |= MUSB_TXCSR_P_WZC_BITS;
++			csr &= ~(MUSB_TXCSR_P_WZC_BITS);
+ 			csr &= ~(MUSB_TXCSR_P_UNDERRUN
+ 					| MUSB_TXCSR_TXPKTRDY);
+ 			musb_writew(epio, MUSB_TXCSR, csr);
+@@ -573,10 +573,16 @@ static void rxstate(struct musb *musb, s
+ 	u16			csr = 0;
+ 	const u8		epnum = req->epnum;
+ 	struct usb_request	*request = &req->request;
+-	struct musb_ep		*musb_ep = &musb->endpoints[epnum].ep_out;
++	struct musb_ep		*musb_ep = NULL;
+ 	void __iomem		*epio = musb->endpoints[epnum].regs;
+ 	u16			fifo_count = 0;
+-	u16			len = musb_ep->packet_sz;
++	u16			len = 0;
++	
++	if (musb->endpoints[epnum].is_shared_fifo)
++		musb_ep = &musb->endpoints[epnum].ep_in;
++	else
++		musb_ep = &musb->endpoints[epnum].ep_out;
++	len =  musb_ep->packet_sz;
+ 
+ 	csr = musb_readw(epio, MUSB_RXCSR);
+ 
+@@ -715,7 +721,7 @@ static void rxstate(struct musb *musb, s
+ 			 */
+ 
+ 			/* ack the read! */
+-			csr |= MUSB_RXCSR_P_WZC_BITS;
++			csr &= ~MUSB_RXCSR_P_WZC_BITS;
+ 			csr &= ~MUSB_RXCSR_RXPKTRDY;
+ 			musb_writew(epio, MUSB_RXCSR, csr);
+ 		}
+@@ -734,10 +740,15 @@ void musb_g_rx(struct musb *musb, u8 epn
+ 	u16			csr;
+ 	struct usb_request	*request;
+ 	void __iomem		*mbase = musb->mregs;
+-	struct musb_ep		*musb_ep = &musb->endpoints[epnum].ep_out;
++	struct musb_ep		*musb_ep = NULL;
+ 	void __iomem		*epio = musb->endpoints[epnum].regs;
+ 	struct dma_channel	*dma;
+ 
++	if (musb->endpoints[epnum].is_shared_fifo)
++		musb_ep = &musb->endpoints[epnum].ep_in;
++	else
++		musb_ep = &musb->endpoints[epnum].ep_out;
++	
+ 	musb_ep_select(mbase, epnum);
+ 
+ 	request = next_request(musb_ep);
+@@ -1559,7 +1570,7 @@ init_peripheral_ep(struct musb *musb, st
+ 	ep->is_in = is_in;
+ 
+ 	INIT_LIST_HEAD(&ep->req_list);
+-
++	
+ 	sprintf(ep->name, "ep%d%s", epnum,
+ 			(!epnum || hw_ep->is_shared_fifo) ? "" : (
+ 				is_in ? "in" : "out"));
+@@ -1758,7 +1769,9 @@ int usb_gadget_register_driver(struct us
+ 			}
+ 		}
+ 	}
+-
++#ifndef CONFIG_USB_MUSB_OTG
++	musb_pullup(musb, 1);
++#endif
+ 	return retval;
+ }
+ EXPORT_SYMBOL(usb_gadget_register_driver);
+--- a/drivers/usb/musb/musb_gadget_ep0.c
++++ b/drivers/usb/musb/musb_gadget_ep0.c
+@@ -240,14 +240,14 @@ __acquires(musb->lock)
+ 		case USB_REQ_SET_ADDRESS:
+ 			/* change it after the status stage */
+ 			musb->set_address = true;
+-			musb->address = (u8) (ctrlrequest->wValue & 0x7f);
++			musb->address = (u8) (le16_to_cpu(ctrlrequest->wValue) & 0x7f);
+ 			handled = 1;
+ 			break;
+ 
+ 		case USB_REQ_CLEAR_FEATURE:
+ 			switch (recip) {
+ 			case USB_RECIP_DEVICE:
+-				if (ctrlrequest->wValue
++				if (le16_to_cpu(ctrlrequest->wValue)
+ 						!= USB_DEVICE_REMOTE_WAKEUP)
+ 					break;
+ 				musb->may_wakeup = 0;
+@@ -261,8 +261,8 @@ __acquires(musb->lock)
+ 
+ 				if (num == 0
+ 						|| num >= MUSB_C_NUM_EPS
+-						|| ctrlrequest->wValue
+-							!= USB_ENDPOINT_HALT)
++						|| le16_to_cpu(ctrlrequest->wValue
++							!= USB_ENDPOINT_HALT))
+ 					break;
+ 
+ 				if (ctrlrequest->wIndex & USB_DIR_IN)
+@@ -292,7 +292,7 @@ __acquires(musb->lock)
+ 			switch (recip) {
+ 			case USB_RECIP_DEVICE:
+ 				handled = 1;
+-				switch (ctrlrequest->wValue) {
++				switch (le16_to_cpu(ctrlrequest->wValue)) {
+ 				case USB_DEVICE_REMOTE_WAKEUP:
+ 					musb->may_wakeup = 1;
+ 					break;
+@@ -374,8 +374,8 @@ stall:
+ 
+ 				if (epnum == 0
+ 						|| epnum >= MUSB_C_NUM_EPS
+-						|| ctrlrequest->wValue
+-							!= USB_ENDPOINT_HALT)
++						|| le16_to_cpu(ctrlrequest->wValue
++							!= USB_ENDPOINT_HALT))
+ 					break;
+ 
+ 				ep = musb->endpoints + epnum;
+--- a/drivers/usb/musb/musb_host.c
++++ b/drivers/usb/musb/musb_host.c
+@@ -139,7 +139,11 @@ static inline void musb_h_tx_start(struc
+ 	/* NOTE: no locks here; caller should lock and select EP */
+ 	if (ep->epnum) {
+ 		txcsr = musb_readw(ep->regs, MUSB_TXCSR);
+-		txcsr |= MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_H_WZC_BITS;
++#ifndef CONFIG_UBICOM32
++		txcsr |= MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_H_WZC_BITS; 
++#else
++		txcsr |= (MUSB_TXCSR_TXPKTRDY & (~MUSB_TXCSR_H_WZC_BITS)); 
++#endif
+ 		musb_writew(ep->regs, MUSB_TXCSR, txcsr);
+ 	} else {
+ 		txcsr = MUSB_CSR0_H_SETUPPKT | MUSB_CSR0_TXPKTRDY;
+@@ -198,8 +202,11 @@ musb_start_urb(struct musb *musb, int is
+ 		len = urb->iso_frame_desc[0].length;
+ 		break;
+ 	default:		/* bulk, interrupt */
+-		buf = urb->transfer_buffer;
+-		len = urb->transfer_buffer_length;
++		/* actual_length may be nonzero on retry paths */
++		if (urb->actual_length) 
++			DBG(3 ,"musb_start_urb: URB %p retried, len: %d\n", urb, urb->actual_length);
++		buf = urb->transfer_buffer + urb->actual_length;
++		len = urb->transfer_buffer_length - urb->actual_length;
+ 	}
+ 
+ 	DBG(4, "qh %p urb %p dev%d ep%d%s%s, hw_ep %d, %p/%d\n",
+@@ -318,13 +325,13 @@ musb_save_toggle(struct musb_hw_ep *ep, 
+ 	if (!is_in) {
+ 		csr = musb_readw(epio, MUSB_TXCSR);
+ 		usb_settoggle(udev, qh->epnum, 1,
+-			(csr & MUSB_TXCSR_H_DATATOGGLE)
+-				? 1 : 0);
++			((csr & MUSB_TXCSR_H_DATATOGGLE)
++				? 1 : 0));
+ 	} else {
+ 		csr = musb_readw(epio, MUSB_RXCSR);
+ 		usb_settoggle(udev, qh->epnum, 0,
+-			(csr & MUSB_RXCSR_H_DATATOGGLE)
+-				? 1 : 0);
++			((csr & MUSB_RXCSR_H_DATATOGGLE)
++				? 1 : 0));
+ 	}
+ }
+ 
+@@ -337,9 +344,11 @@ musb_giveback(struct musb_qh *qh, struct
+ 	struct musb		*musb = ep->musb;
+ 	int			ready = qh->is_ready;
+ 
++#ifndef CONFIG_UBICOM32 /* BUG! */
+ 	if (ep->is_shared_fifo)
+ 		is_in = 1;
+ 	else
++#endif
+ 		is_in = usb_pipein(urb->pipe);
+ 
+ 	/* save toggle eagerly, for paranoia */
+@@ -538,7 +547,11 @@ musb_host_packet_rx(struct musb *musb, s
+ 	musb_read_fifo(hw_ep, length, buf);
+ 
+ 	csr = musb_readw(epio, MUSB_RXCSR);
++#ifndef CONFIG_UBICOM32
+ 	csr |= MUSB_RXCSR_H_WZC_BITS;
++#else
++	csr &= ~MUSB_RXCSR_H_WZC_BITS;
++#endif
+ 	if (unlikely(do_flush))
+ 		musb_h_flush_rxfifo(hw_ep, csr);
+ 	else {
+@@ -572,14 +585,24 @@ musb_rx_reinit(struct musb *musb, struct
+ 
+ 	/* if programmed for Tx, put it in RX mode */
+ 	if (ep->is_shared_fifo) {
++#ifndef  CONFIG_UBICOM32
+ 		csr = musb_readw(ep->regs, MUSB_TXCSR);
+ 		if (csr & MUSB_TXCSR_MODE) {
+ 			musb_h_tx_flush_fifo(ep);
+ 			musb_writew(ep->regs, MUSB_TXCSR,
+ 					MUSB_TXCSR_FRCDATATOG);
+ 		}
++#else 
+ 		/* clear mode (and everything else) to enable Rx */
+ 		musb_writew(ep->regs, MUSB_TXCSR, 0);
++		/* scrub all previous state, clearing toggle */
++		csr = musb_readw(ep->regs, MUSB_RXCSR);
++		if (csr & MUSB_RXCSR_RXPKTRDY)
++			WARNING("rx%d, packet/%d ready?\n", ep->epnum,
++				musb_readw(ep->regs, MUSB_RXCOUNT));
++
++		musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG);
++#endif
+ 
+ 	/* scrub all previous state, clearing toggle */
+ 	} else {
+@@ -680,7 +703,7 @@ static void musb_ep_program(struct musb 
+ 			/* ASSERT:  TXCSR_DMAENAB was already cleared */
+ 
+ 			/* flush all old state, set default */
+-			musb_h_tx_flush_fifo(hw_ep);
++				musb_h_tx_flush_fifo(hw_ep);
+ 			csr &= ~(MUSB_TXCSR_H_NAKTIMEOUT
+ 					| MUSB_TXCSR_DMAMODE
+ 					| MUSB_TXCSR_FRCDATATOG
+@@ -1169,8 +1192,18 @@ void musb_host_tx(struct musb *musb, u8 
+ 	void __iomem		*mbase = musb->mregs;
+ 	struct dma_channel	*dma;
+ 
++#ifdef CONFIG_UBICOM32
++	if (hw_ep->is_shared_fifo) {
++		qh = hw_ep->in_qh;
++	}
++#ifdef CONFIG_USB_SERIAL_SIERRAWIRELESS
++	printk(KERN_DEBUG "OUT/TX%d end, csr %04x%s\n", epnum, tx_csr,
++			dma ? ", dma" : "");
++#endif
++#endif
+ 	urb = next_urb(qh);
+ 
++
+ 	musb_ep_select(mbase, epnum);
+ 	tx_csr = musb_readw(epio, MUSB_TXCSR);
+ 
+@@ -1210,9 +1243,14 @@ void musb_host_tx(struct musb *musb, u8 
+ 		 * we have a candidate... NAKing is *NOT* an error
+ 		 */
+ 		musb_ep_select(mbase, epnum);
++#ifndef CONFIG_UBICOM32
+ 		musb_writew(epio, MUSB_TXCSR,
+ 				MUSB_TXCSR_H_WZC_BITS
+ 				| MUSB_TXCSR_TXPKTRDY);
++#else
++		musb_writew(epio, MUSB_TXCSR,
++				 MUSB_TXCSR_TXPKTRDY);
++#endif
+ 		goto finish;
+ 	}
+ 
+@@ -1316,8 +1354,14 @@ void musb_host_tx(struct musb *musb, u8 
+ 		qh->segsize = wLength;
+ 
+ 		musb_ep_select(mbase, epnum);
++#ifndef CONFIG_UBICOM32
+ 		musb_writew(epio, MUSB_TXCSR,
+-				MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
++				 MUSB_TXCSR_MODE | MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
++#else
++	 musb_writew(epio, MUSB_TXCSR,
++                                 MUSB_TXCSR_MODE | MUSB_TXCSR_TXPKTRDY);
++#endif
++
+ 	} else
+ 		DBG(1, "not complete, but dma enabled?\n");
+ 
+@@ -1365,6 +1409,49 @@ finish:
+ 
+ #endif
+ 
++/* Schedule next QH from musb->in_bulk and move the current qh to
++ * the end; avoids starvation for other endpoints.
++ */
++static void musb_bulk_rx_nak_timeout(struct musb *musb, struct musb_hw_ep *ep)
++{
++	struct dma_channel	*dma;
++	struct urb		*urb;
++	void __iomem		*mbase = musb->mregs;
++	void __iomem		*epio = ep->regs;
++	struct musb_qh		*cur_qh, *next_qh;
++	u16			rx_csr;
++
++	musb_ep_select(mbase, ep->epnum);
++	dma = is_dma_capable() ? ep->rx_channel : NULL;
++	/* clear nak timeout bit */
++	rx_csr = musb_readw(epio, MUSB_RXCSR);
++	rx_csr &= ~MUSB_RXCSR_H_WZC_BITS;
++	rx_csr &= ~MUSB_RXCSR_DATAERROR;
++	musb_writew(epio, MUSB_RXCSR, rx_csr);
++
++	cur_qh = first_qh(&musb->in_bulk);
++	if (cur_qh) {
++		urb = next_urb(cur_qh);
++		if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
++			dma->status = MUSB_DMA_STATUS_CORE_ABORT;
++			musb->dma_controller->channel_abort(dma);
++			urb->actual_length += dma->actual_len;
++			dma->actual_len = 0L;
++		}
++		musb_save_toggle(ep, 1, urb);
++
++		/* move cur_qh to end of queue */
++		list_move_tail(&cur_qh->ring, &musb->in_bulk);
++
++		/* get the next qh from musb->in_bulk */
++		next_qh = first_qh(&musb->in_bulk);
++
++		/* set rx_reinit and schedule the next qh */
++		ep->rx_reinit = 1;
++		musb_start_urb(musb, 1, next_qh);
++	}
++}
++
+ /*
+  * Service an RX interrupt for the given IN endpoint; docs cover bulk, iso,
+  * and high-bandwidth IN transfer cases.
+@@ -1383,7 +1470,7 @@ void musb_host_rx(struct musb *musb, u8 
+ 	bool			done = false;
+ 	u32			status;
+ 	struct dma_channel	*dma;
+-
++	
+ 	musb_ep_select(mbase, epnum);
+ 
+ 	urb = next_urb(qh);
+@@ -1407,6 +1494,13 @@ void musb_host_rx(struct musb *musb, u8 
+ 
+ 	pipe = urb->pipe;
+ 
++#ifdef CONFIG_UBICOM32
++#ifdef CONFIG_USB_SERIAL_SIERRAWIRELESS
++		printk(KERN_DEBUG  "RXCSR%d %04x, reqpkt, len %zu%s\n", epnum, rx_csr,
++				xfer_len, dma ? ", dma" : "");
++#endif
++#endif
++
+ 	DBG(5, "<== hw %d rxcsr %04x, urb actual %d (+dma %zu)\n",
+ 		epnum, rx_csr, urb->actual_length,
+ 		dma ? dma->actual_len : 0);
+@@ -1428,18 +1522,30 @@ void musb_host_rx(struct musb *musb, u8 
+ 	} else if (rx_csr & MUSB_RXCSR_DATAERROR) {
+ 
+ 		if (USB_ENDPOINT_XFER_ISOC != qh->type) {
+-			/* NOTE this code path would be a good place to PAUSE a
+-			 * transfer, if there's some other (nonperiodic) rx urb
+-			 * that could use this fifo.  (dma complicates it...)
++			DBG(6, "RX end %d NAK timeout\n", epnum);
++
++			/* NOTE: NAKing is *NOT* an error, so we want to
++			 * continue.  Except ... if there's a request for
++			 * another QH, use that instead of starving it.
+ 			 *
+-			 * if (bulk && qh->ring.next != &musb->in_bulk), then
+-			 * we have a candidate... NAKing is *NOT* an error
++			 * Devices like Ethernet and serial adapters keep
++			 * reads posted at all times, which will starve
++			 * other devices without this logic.
+ 			 */
+-			DBG(6, "RX end %d NAK timeout\n", epnum);
++			if (usb_pipebulk(urb->pipe)
++					&& qh->mux == 1
++					&& !list_is_singular(&musb->in_bulk)) {
++				musb_bulk_rx_nak_timeout(musb, hw_ep);
++				return;
++			}
+ 			musb_ep_select(mbase, epnum);
++#ifndef CONFIG_UBICOM32
+ 			musb_writew(epio, MUSB_RXCSR,
+ 					MUSB_RXCSR_H_WZC_BITS
+ 					| MUSB_RXCSR_H_REQPKT);
++#else
++			musb_writew(epio, MUSB_RXCSR, (~(MUSB_RXCSR_H_WZC_BITS))| MUSB_RXCSR_H_REQPKT);
++#endif
+ 
+ 			goto finish;
+ 		} else {
+@@ -1495,8 +1601,13 @@ void musb_host_rx(struct musb *musb, u8 
+ 		rx_csr &= ~MUSB_RXCSR_H_REQPKT;
+ 
+ 		musb_ep_select(mbase, epnum);
++#ifndef CONFIG_UBICOM32
+ 		musb_writew(epio, MUSB_RXCSR,
+ 				MUSB_RXCSR_H_WZC_BITS | rx_csr);
++#else
++		musb_writew(epio, MUSB_RXCSR,
++				(~MUSB_RXCSR_H_WZC_BITS) & rx_csr);
++#endif
+ 	}
+ #endif
+ 	if (dma && (rx_csr & MUSB_RXCSR_DMAENAB)) {
+@@ -1526,7 +1637,7 @@ void musb_host_rx(struct musb *musb, u8 
+ 			else
+ 				done = false;
+ 
+-		} else  {
++		} else {
+ 		/* done if urb buffer is full or short packet is recd */
+ 		done = (urb->actual_length + xfer_len >=
+ 				urb->transfer_buffer_length
+@@ -1743,8 +1854,12 @@ static int musb_schedule(
+ 		if (musb->periodic[epnum])
+ 			continue;
+ 		hw_ep = &musb->endpoints[epnum];
++#ifndef CONFIG_UBICOM32
+ 		if (hw_ep == musb->bulk_ep)
+-			continue;
++#else
++		if ((hw_ep == musb->bulk_ep_in) || (hw_ep == musb->bulk_ep_out)) /* Ubicom */	
++#endif
++			continue; 
+ 
+ 		if (is_in)
+ 			diff = hw_ep->max_packet_sz_rx - qh->maxpacket;
+@@ -1756,7 +1871,14 @@ static int musb_schedule(
+ 			best_end = epnum;
+ 		}
+ 	}
++
++#ifdef CONFIG_UBICOM32
++	if (((best_diff >= qh->maxpacket)) && ((qh->type == USB_ENDPOINT_XFER_BULK) && (!is_in)))
++		best_end = -1;
++#endif
++
+ 	/* use bulk reserved ep1 if no other ep is free */
++#ifndef CONFIG_UBICOM32
+ 	if (best_end < 0 && qh->type == USB_ENDPOINT_XFER_BULK) {
+ 		hw_ep = musb->bulk_ep;
+ 		if (is_in)
+@@ -1767,6 +1889,22 @@ static int musb_schedule(
+ 	} else if (best_end < 0) {
+ 		return -ENOSPC;
+ 	}
++#else
++	if (best_end < 0 && qh->type == USB_ENDPOINT_XFER_BULK) {
++		/* hw_ep = musb->bulk_ep; */
++		if (is_in) {
++			head = &musb->in_bulk;
++			hw_ep = musb->bulk_ep_in; /* UBICOM */
++		}
++		else {
++			head = &musb->out_bulk;
++			hw_ep = musb->bulk_ep_out; /* UBICOM */
++		}
++		goto success;
++	} else if (best_end < 0) {
++		return -ENOSPC;
++	}
++#endif
+ 
+ 	idle = 1;
+ 	qh->mux = 0;
+@@ -1779,6 +1917,13 @@ success:
+ 		list_add_tail(&qh->ring, head);
+ 		qh->mux = 1;
+ 	}
++	/*
++	 * It's not make sense to set NAK timeout when qh->mux = 0,
++	 * There is nothing else to schedule
++ 	 */
++	if ((qh->type == USB_ENDPOINT_XFER_BULK) && (qh->mux == 0))
++		qh->intv_reg = 0;
++
+ 	qh->hw_ep = hw_ep;
+ 	qh->hep->hcpriv = qh;
+ 	if (idle)
+@@ -1884,6 +2029,15 @@ static int musb_urb_enqueue(
+ 	case USB_ENDPOINT_XFER_ISOC:
+ 		/* iso always uses log encoding */
+ 		break;
++#ifdef COMFIG_UBICOM32
++	case USB_ENDPOINT_XFER_BULK:
++		 if (epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
++			interval = (USB_SPEED_HIGH == urb->dev->speed) ? 16: 2;
++ 		 else
++			interval = 0;
++		 break;
++#endif
++	
+ 	default:
+ 		/* REVISIT we actually want to use NAK limits, hinting to the
+ 		 * transfer scheduling logic to try some other qh, e.g. try
+--- a/drivers/usb/musb/musb_io.h
++++ b/drivers/usb/musb/musb_io.h
+@@ -56,6 +56,7 @@ static inline void writesb(const void __
+ 
+ #endif
+ 
++#ifndef CONFIG_UBICOM32
+ /* NOTE:  these offsets are all in bytes */
+ 
+ static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
+@@ -70,7 +71,37 @@ static inline void musb_writew(void __io
+ 
+ static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
+ 	{ __raw_writel(data, addr + offset); }
++#else
++#include <asm/ubicom32-tio.h>
++static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
++{
++        u16 data;
++        usb_tio_read_u16((u32)(addr + offset), &data);
++        return data;
++}
+ 
++static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
++{
++        u8 data;
++        usb_tio_read_u8((u32)(addr + offset), &data);
++        return data;
++}
++
++static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
++{
++        usb_tio_write_u16((u32)(addr + offset), data);
++}
++
++static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
++{
++        usb_tio_write_u8((u32)(addr + offset), data);
++}
++
++static inline void  musb_read_int_status(u8_t *int_usb, u16_t *int_tx, u16_t *int_rx)
++{
++	return usb_tio_read_int_status(int_usb, int_tx, int_rx);
++}
++#endif /* CONFIG_UBICOM32 */
+ 
+ #ifdef CONFIG_USB_TUSB6010
+ 
+@@ -104,7 +135,7 @@ static inline void musb_writeb(void __io
+ 	__raw_writew(tmp, addr + (offset & ~1));
+ }
+ 
+-#else
++#elif !defined(CONFIG_UBICOM32)
+ 
+ static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
+ 	{ return __raw_readb(addr + offset); }
+--- /dev/null
++++ b/drivers/usb/musb/ubi32_usb.c
+@@ -0,0 +1,156 @@
++/*
++ * drivers/usb/musb/ubi32_usb.c
++ *   Ubicom32 usb controller driver.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2005-2006 by Texas Instruments
++ *
++ * Derived from the Texas Instruments Inventra Controller Driver for Linux.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not, 
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/list.h>
++#include <linux/clk.h>
++#include <linux/io.h>
++
++#include <asm/io.h>
++#include <asm/ip5000.h>
++#include "musb_core.h"
++
++void musb_platform_enable(struct musb *musb)
++{
++}
++void musb_platform_disable(struct musb *musb)
++{
++}
++
++int musb_platform_set_mode(struct musb *musb, u8 musb_mode) {
++	return 0;
++}
++
++static void ip5k_usb_hcd_vbus_power(struct musb *musb, int is_on, int sleeping)
++{
++}
++
++static void ip5k_usb_hcd_set_vbus(struct musb *musb, int is_on)
++{
++	u8		devctl;
++	/* HDRC controls CPEN, but beware current surges during device
++	 * connect.  They can trigger transient overcurrent conditions
++	 * that must be ignored.
++	 */
++
++	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
++
++	if (is_on) {
++		musb->is_active = 1;
++		musb->xceiv.default_a = 1;
++		musb->xceiv.state = OTG_STATE_A_WAIT_VRISE;
++		devctl |= MUSB_DEVCTL_SESSION;
++
++		MUSB_HST_MODE(musb);
++	} else {
++		musb->is_active = 0;
++
++		/* NOTE:  we're skipping A_WAIT_VFALL -> A_IDLE and
++		 * jumping right to B_IDLE...
++		 */
++
++		musb->xceiv.default_a = 0;
++		musb->xceiv.state = OTG_STATE_B_IDLE;
++		devctl &= ~MUSB_DEVCTL_SESSION;
++
++		MUSB_DEV_MODE(musb);
++	}
++	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
++
++	DBG(1, "VBUS %s, devctl %02x "
++		/* otg %3x conf %08x prcm %08x */ "\n",
++		otg_state_string(musb),
++		musb_readb(musb->mregs, MUSB_DEVCTL));
++}
++static int ip5k_usb_hcd_set_power(struct otg_transceiver *x, unsigned mA)
++{
++	return 0;
++}
++
++static int musb_platform_resume(struct musb *musb);
++
++int __init musb_platform_init(struct musb *musb)
++{
++
++#ifdef CONFIG_UBICOM32_V4
++	u32_t chip_id;
++	asm volatile (
++		      "move.4	%0, CHIP_ID	\n\t"
++		      : "=r" (chip_id)
++	);
++	if (chip_id == 0x30001) {
++		*((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 30);
++		udelay(1);
++		*((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 31);
++	} else {
++		*((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 17);
++		udelay(1);
++		*((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 14);
++	}
++#endif
++
++	 *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_CFG)) |= ((1 << 14) | (1 <<15));
++
++	/* The i-clk is AUTO gated. Hence there is no need
++	 * to disable it until the driver is shutdown */
++
++	clk_enable(musb->clock);
++	musb_platform_resume(musb);
++
++	ip5k_usb_hcd_vbus_power(musb, musb->board_mode == MUSB_HOST, 1);
++
++	if (is_host_enabled(musb))
++		musb->board_set_vbus = ip5k_usb_hcd_set_vbus;
++	if (is_peripheral_enabled(musb))
++		musb->xceiv.set_power = ip5k_usb_hcd_set_power;
++
++	return 0;
++}
++
++
++int musb_platform_suspend(struct musb *musb)
++{
++	return 0;
++}
++int musb_platform_resume(struct musb *musb)
++{
++	return 0;
++}
++
++int musb_platform_exit(struct musb *musb)
++{
++	ip5k_usb_hcd_vbus_power(musb, 0 /*off*/, 1);
++	musb_platform_suspend(musb);
++	return 0;
++}
+--- a/drivers/video/backlight/Kconfig
++++ b/drivers/video/backlight/Kconfig
+@@ -84,6 +84,14 @@ config LCD_TOSA
+ 	  If you have an Sharp SL-6000 Zaurus say Y to enable a driver
+ 	  for its LCD.
+ 
++config LCD_UBICOM32
++	tristate "Ubicom Backlight Driver"
++	depends on LCD_CLASS_DEVICE && UBICOM32
++	default n
++	help
++	  If you have a Ubicom32 based system with an LCD panel, say Y to enable
++	  the power control driver for it.
++
+ #
+ # Backlight
+ #
+@@ -214,3 +222,11 @@ config BACKLIGHT_SAHARA
+ 	help
+ 	  If you have a Tabletkiosk Sahara Touch-iT, say y to enable the
+ 	  backlight driver.
++
++config BACKLIGHT_UBICOM32
++	tristate "Ubicom Backlight Driver"
++	depends on BACKLIGHT_CLASS_DEVICE && UBICOM32
++	default n
++	help
++	  If you have a Ubicom32 based system with a backlight say Y to enable the
++	  backlight driver.
+--- a/drivers/video/backlight/Makefile
++++ b/drivers/video/backlight/Makefile
+@@ -8,6 +8,8 @@ obj-$(CONFIG_LCD_PLATFORM)	   += platfor
+ obj-$(CONFIG_LCD_VGG2432A4)	   += vgg2432a4.o
+ obj-$(CONFIG_LCD_TDO24M)	   += tdo24m.o
+ obj-$(CONFIG_LCD_TOSA)		   += tosa_lcd.o
++obj-$(CONFIG_LCD_LTV350QV)	   += ltv350qv.o
++obj-$(CONFIG_LCD_UBICOM32)	   += ubicom32lcd.o
+ 
+ obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
+ obj-$(CONFIG_BACKLIGHT_ATMEL_PWM)    += atmel-pwm-bl.o
+@@ -22,4 +24,4 @@ obj-$(CONFIG_BACKLIGHT_DA903X)	+= da903x
+ obj-$(CONFIG_BACKLIGHT_MBP_NVIDIA) += mbp_nvidia_bl.o
+ obj-$(CONFIG_BACKLIGHT_TOSA)	+= tosa_bl.o
+ obj-$(CONFIG_BACKLIGHT_SAHARA)	+= kb3886_bl.o
+-
++obj-$(CONFIG_BACKLIGHT_UBICOM32) += ubicom32bl.o
+--- /dev/null
++++ b/drivers/video/backlight/ubicom32bl.c
+@@ -0,0 +1,378 @@
++/*
++ * drivers/video/backlight/ubicom32bl.c
++ *	Backlight driver for the Ubicom32 platform
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/backlight.h>
++#include <linux/fb.h>
++
++#include <asm/ubicom32bl.h>
++#include <asm/ip5000.h>
++
++#define DRIVER_NAME			"ubicom32bl"
++#define UBICOM32BL_MAX_BRIGHTNESS	255
++
++struct ubicom32bl_data {
++	/*
++	 * Pointer to the platform data structure.  Keep this around since we need values
++	 * from it to set the backlight intensity.
++	 */
++	const struct ubicom32bl_platform_data	*pdata;
++
++	/*
++	 * Backlight device, we have to save this for use when we remove ourselves.
++	 */
++	struct backlight_device			*bldev;
++
++	/*
++	 * Current intensity, used for get_intensity.
++	 */
++	int					cur_intensity;
++
++	/*
++	 * Init function for PWM
++	 */
++	int (*init_fn)(struct ubicom32bl_data *);
++
++	/*
++	 * Set intensity function depending on the backlight type
++	 */
++	int (*set_intensity_fn)(struct ubicom32bl_data *, int);
++};
++
++/*
++ * ubicom32bl_set_intensity_gpio
++ */
++static int ubicom32bl_set_intensity_gpio(struct ubicom32bl_data *ud, int intensity)
++{
++	ud->cur_intensity = intensity ? 255 : 0;
++
++	if (intensity) {
++		// set gpio
++		return 0;
++	}
++
++	// clear gpio
++	return 0;
++}
++
++/*
++ * ubicom32bl_set_intensity_hw
++ */
++static int ubicom32bl_set_intensity_hw(struct ubicom32bl_data *ud, int intensity)
++{
++	u16_t period = ud->pdata->pwm_period;
++	u16_t duty;
++
++	/*
++	 * Calculate the new duty cycle
++	 */
++	duty = (period * intensity) / (UBICOM32BL_MAX_BRIGHTNESS + 1);
++
++	/*
++	 * Set the new duty cycle
++	 */
++	switch (ud->pdata->pwm_channel) {
++	case 0:
++		/*
++		 * Channel 0 is in the lower half of PORT C ctl0 and ctl1
++		 */
++		UBICOM32_IO_PORT(RC)->ctl1 = (ud->pdata->pwm_period << 16) | duty;
++		break;
++
++	case 1:
++		/*
++		 * Channel 1 is in the upper half of PORT C ctl0 and ctl2
++		 */
++		UBICOM32_IO_PORT(RC)->ctl2 = (ud->pdata->pwm_period << 16) | duty;
++		break;
++
++	case 2:
++		/*
++		 * Channel 2 is in PORT H ctl0 and ctl1
++		 */
++		UBICOM32_IO_PORT(RH)->ctl1 = (ud->pdata->pwm_period << 16) | duty;
++		break;
++	}
++
++	ud->cur_intensity = intensity;
++
++	return 0;
++}
++
++/*
++ * ubicom32bl_set_intensity
++ */
++static int ubicom32bl_set_intensity(struct backlight_device *bd)
++{
++	struct ubicom32bl_data *ud = (struct ubicom32bl_data *)bl_get_data(bd);
++	int intensity = bd->props.brightness;
++
++	/*
++	 * If we're blanked the the intensity doesn't matter.
++	 */
++	if ((bd->props.power != FB_BLANK_UNBLANK) || (bd->props.fb_blank != FB_BLANK_UNBLANK)) {
++		intensity = 0;
++	}
++
++	/*
++	 * Check for inverted backlight.
++	 */
++	if (ud->pdata->invert) {
++		intensity = UBICOM32BL_MAX_BRIGHTNESS - intensity;
++	}
++
++	if (ud->set_intensity_fn) {
++		return ud->set_intensity_fn(ud, intensity);
++	}
++
++	return -ENXIO;
++}
++
++/*
++ * ubicom32bl_get_intensity
++ *	Return the current intensity of the backlight.
++ */
++static int ubicom32bl_get_intensity(struct backlight_device *bd)
++{
++	struct ubicom32bl_data *ud = (struct ubicom32bl_data *)bl_get_data(bd);
++
++	return ud->cur_intensity;
++}
++
++/*
++ * ubicom32bl_init_hw_pwm
++ *	Set the appropriate PWM registers
++ */
++static int ubicom32bl_init_hw_pwm(struct ubicom32bl_data *ud)
++{
++	/*
++	 * bit 13: enable
++	 */
++	u16_t pwm_cfg = (1 << 13) | (ud->pdata->pwm_prescale << 8) ;
++
++	switch (ud->pdata->pwm_channel) {
++	case 0:
++		/*
++		 * Channel 0 is in the lower half of PORT C ctl0 and ctl1
++		 */
++		UBICOM32_IO_PORT(RC)->ctl0 &= ~0xFFFF;
++		UBICOM32_IO_PORT(RC)->ctl0 |= pwm_cfg;
++		UBICOM32_IO_PORT(RC)->ctl1 = ud->pdata->pwm_period << 16;
++		break;
++
++	case 1:
++		/*
++		 * Channel 1 is in the upper half of PORT C ctl0 and ctl2
++		 */
++		UBICOM32_IO_PORT(RC)->ctl0 &= ~0xFFFF0000;
++		UBICOM32_IO_PORT(RC)->ctl0 |= (pwm_cfg << 16);
++		UBICOM32_IO_PORT(RC)->ctl2 = ud->pdata->pwm_period << 16;
++		break;
++
++	case 2:
++		/*
++		 * Channel 2 is in PORT H ctl0 and ctl1
++		 */
++		UBICOM32_IO_PORT(RH)->ctl0 &= ~0xFFFF0000;
++		UBICOM32_IO_PORT(RH)->ctl0 = pwm_cfg;
++		UBICOM32_IO_PORT(RH)->ctl1 = ud->pdata->pwm_period << 16;
++		break;
++	}
++
++	return 0;
++}
++
++/*
++ * ubicom32bl_init_gpio
++ *	Allocate the appropriate GPIO
++ */
++static int ubicom32bl_init_gpio(struct ubicom32bl_data *ud)
++{
++	return 0;
++}
++
++static struct backlight_ops ubicom32bl_ops = {
++	.get_brightness = ubicom32bl_get_intensity,
++	.update_status  = ubicom32bl_set_intensity,
++};
++
++/*
++ * ubicom32bl_probe
++ */
++static int ubicom32bl_probe(struct platform_device *pdev)
++{
++	const struct ubicom32bl_platform_data *pdata = pdev->dev.platform_data;
++	struct ubicom32bl_data *ud;
++	struct backlight_device *bldev;
++	int retval;
++
++	/*
++	 * Check to see if we have any platform data, if we don't then the backlight is not
++	 * configured on this device.
++	 */
++	if (!pdata) {
++		return -ENODEV;
++	}
++
++	/*
++	 * Allocate our private data
++	 */
++	ud = kzalloc(sizeof(struct ubicom32bl_data), GFP_KERNEL);
++	if (!ud) {
++		return -ENOMEM;
++	}
++
++	ud->pdata = pdata;
++
++	/*
++	 * Check to see that the platform data is valid for this driver
++	 */
++	switch (pdata->type) {
++	case UBICOM32BL_TYPE_PWM: 
++		{
++			/*
++			 * Make sure we have a PWM peripheral
++			 */
++			u32_t chipid;
++			asm volatile (
++				"move.4         %0, CHIP_ID     \n\t"
++				: "=r" (chipid)
++			);
++			if (chipid != 0x00030001) {
++				retval = -ENODEV;
++				goto fail;
++			}
++
++			if (pdata->pwm_channel > 3) {
++				retval = -ENODEV;
++				goto fail;
++			}
++			if (pdata->pwm_prescale > 16) {
++				retval = -EINVAL;
++				goto fail;
++			}
++
++			ud->init_fn = ubicom32bl_init_hw_pwm;
++			ud->set_intensity_fn = ubicom32bl_set_intensity_hw;
++			break;
++		}
++
++	case UBICOM32BL_TYPE_PWM_HRT:
++		// For now, PWM HRT devices are treated as binary lights.
++
++	case UBICOM32BL_TYPE_BINARY:
++		ud->init_fn = ubicom32bl_init_gpio;
++		ud->set_intensity_fn = ubicom32bl_set_intensity_gpio;
++		break;
++	}
++
++	/*
++	 * Register our backlight device
++	 */
++	bldev = backlight_device_register(DRIVER_NAME, &pdev->dev, ud, &ubicom32bl_ops);
++	if (IS_ERR(bldev)) {
++		retval = PTR_ERR(bldev);
++		goto fail;
++	}
++
++	ud->bldev = bldev;
++	ud->cur_intensity = pdata->default_intensity;
++	platform_set_drvdata(pdev, ud);
++
++	/* 
++	 * Start up the backlight at the prescribed default intensity
++	 */
++	bldev->props.power = FB_BLANK_UNBLANK;
++	bldev->props.max_brightness = UBICOM32BL_MAX_BRIGHTNESS;
++	bldev->props.brightness = pdata->default_intensity;
++
++	if (ud->init_fn) {
++		if (ud->init_fn(ud) != 0) {
++			retval = -ENODEV;
++			backlight_device_unregister(ud->bldev);
++			goto fail;
++		}
++	}
++	ubicom32bl_set_intensity(bldev);
++
++	printk(KERN_INFO DRIVER_NAME ": Backlight driver started\n");
++
++	return 0;
++
++fail:
++	platform_set_drvdata(pdev, NULL);
++	kfree(ud);
++	return retval;
++}
++
++/*
++ * ubicom32bl_remove
++ */
++static int __exit ubicom32bl_remove(struct platform_device *pdev)
++{
++	struct ubicom32bl_data *ud = platform_get_drvdata(pdev);
++
++	backlight_device_unregister(ud->bldev);
++	platform_set_drvdata(pdev, NULL);
++	kfree(ud);
++
++	return 0;
++}
++
++static struct platform_driver ubicom32bl_driver = {
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++	},
++
++	.remove = __exit_p(ubicom32bl_remove),
++};
++
++/*
++ * ubicom32bl_init
++ */
++static int __init ubicom32bl_init(void)
++{
++	return platform_driver_probe(&ubicom32bl_driver, ubicom32bl_probe);
++}
++module_init(ubicom32bl_init);
++
++/*
++ * ubicom32bl_exit
++ */
++static void __exit ubicom32bl_exit(void)
++{
++	platform_driver_unregister(&ubicom32bl_driver);
++}
++module_exit(ubicom32bl_exit);
++
++MODULE_AUTHOR("Patrick Tjin <@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 backlight driver");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/drivers/video/backlight/ubicom32lcd.c
+@@ -0,0 +1,194 @@
++/*
++ * drivers/vdeio/backlight/ubicom32lcd.c
++ *	LCD driver for the Ubicom32 platform
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/lcd.h>
++#include <linux/fb.h>
++#include <linux/gpio.h>
++
++#include <asm/ubicom32lcd.h>
++#include <asm/ip5000.h>
++
++#define DRIVER_NAME			"ubicom32lcd"
++
++struct ubicom32lcd_data {
++	/*
++	 * Pointer to the platform data structure.  Keep this around since we need values
++	 * from it to set the backlight intensity.
++	 */
++	const struct ubicom32lcd_platform_data	*pdata;
++
++	/*
++	 * LCD device, we have to save this for use when we remove ourselves.
++	 */
++	struct lcd_device			*lcddev;
++};
++
++/*
++ * ubicom32lcd_set_power
++ */
++static int ubicom32lcd_set_power(struct lcd_device *ld, int power)
++{
++	struct ubicom32lcd_data *ud = (struct ubicom32lcd_data *)lcd_get_data(ld);
++	if (power == FB_BLANK_UNBLANK) {
++		gpio_direction_output(ud->pdata->vgh_gpio, ud->pdata->vgh_polarity);
++		return 0;
++	}
++
++	gpio_direction_output(ud->pdata->vgh_gpio, !ud->pdata->vgh_polarity);
++	return 0;
++}
++
++/*
++ * ubicom32lcd_get_power
++ */
++static int ubicom32lcd_get_power(struct lcd_device *ld)
++{
++	struct ubicom32lcd_data *ud = (struct ubicom32lcd_data *)lcd_get_data(ld);
++	int vgh = gpio_get_value(ud->pdata->vgh_gpio);
++	if ((vgh && ud->pdata->vgh_polarity) || (!vgh && !ud->pdata->vgh_polarity)) {
++		return 1;
++	}
++
++	return 0;
++}
++
++static struct lcd_ops ubicom32lcd_ops = {
++	.get_power = ubicom32lcd_get_power,
++	.set_power = ubicom32lcd_set_power,
++};
++
++/*
++ * ubicom32lcd_probe
++ */
++static int ubicom32lcd_probe(struct platform_device *pdev)
++{
++	const struct ubicom32lcd_platform_data *pdata = pdev->dev.platform_data;
++	struct ubicom32lcd_data *ud;
++	struct lcd_device *lcddev;
++	int retval;
++
++	/*
++	 * Check to see if we have any platform data, if we don't have a LCD to control
++	 */
++	if (!pdata) {
++		return -ENODEV;
++	}
++
++	/*
++	 * Allocate our private data
++	 */
++	ud = kzalloc(sizeof(struct ubicom32lcd_data), GFP_KERNEL);
++	if (!ud) {
++		return -ENOMEM;
++	}
++
++	ud->pdata = pdata;
++
++	/*
++	 * Request our GPIOs
++	 */
++	retval = gpio_request(pdata->vgh_gpio, "vgh");
++	if (retval) {
++		dev_err(&pdev->dev, "Failed to allocate vgh GPIO\n");
++		goto fail_gpio;
++	}
++
++	/*
++	 * Register our lcd device
++	 */
++	lcddev = lcd_device_register(DRIVER_NAME, &pdev->dev, ud, &ubicom32lcd_ops);
++	if (IS_ERR(lcddev)) {
++		retval = PTR_ERR(lcddev);
++		goto fail;
++	}
++
++	ud->lcddev = lcddev;
++	platform_set_drvdata(pdev, ud);
++
++	ubicom32lcd_set_power(lcddev, FB_BLANK_UNBLANK);
++
++	printk(KERN_INFO DRIVER_NAME ": LCD driver started\n");
++
++	return 0;
++
++fail:
++	gpio_free(pdata->vgh_gpio);
++
++fail_gpio:
++	platform_set_drvdata(pdev, NULL);
++	kfree(ud);
++	return retval;
++}
++
++/*
++ * ubicom32lcd_remove
++ */
++static int __exit ubicom32lcd_remove(struct platform_device *pdev)
++{
++	struct ubicom32lcd_data *ud = platform_get_drvdata(pdev);
++
++	lcd_device_unregister(ud->lcddev);
++	platform_set_drvdata(pdev, NULL);
++	kfree(ud);
++
++	return 0;
++}
++
++static struct platform_driver ubicom32lcd_driver = {
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++	},
++
++	.remove = __exit_p(ubicom32lcd_remove),
++};
++
++/*
++ * ubicom32lcd_init
++ */
++static int __init ubicom32lcd_init(void)
++{
++	return platform_driver_probe(&ubicom32lcd_driver, ubicom32lcd_probe);
++}
++module_init(ubicom32lcd_init);
++
++/*
++ * ubicom32lcd_exit
++ */
++static void __exit ubicom32lcd_exit(void)
++{
++	platform_driver_unregister(&ubicom32lcd_driver);
++}
++module_exit(ubicom32lcd_exit);
++
++MODULE_AUTHOR("Patrick Tjin <@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 backlight driver");
++MODULE_LICENSE("GPL");
+--- a/drivers/video/Kconfig
++++ b/drivers/video/Kconfig
+@@ -609,6 +609,25 @@ config FB_BFIN_T350MCQB
+ 	 This display is a QVGA 320x240 24-bit RGB display interfaced by an 8-bit wide PPI
+ 	 It uses PPI[0..7] PPI_FS1, PPI_FS2 and PPI_CLK.
+ 
++config FB_UBICOM32
++	tristate "Ubicom32 Frame Buffer driver"
++	depends on FB && UBICOM32
++	select FB_CFB_FILLRECT
++	select FB_CFB_COPYAREA
++	select FB_CFB_IMAGEBLIT
++	select FONT_6x11 if FRAMEBUFFER_CONSOLE
++	help
++	 This is the framebuffer device driver for the Ubicom32 architecture.
++
++config FB_UBICOM32_VIRTUAL
++	tristate "Ubicom32 Virtual Frame Buffer driver"
++	depends on FB && UBICOM32
++	select FB_CFB_FILLRECT
++	select FB_CFB_COPYAREA
++	select FB_CFB_IMAGEBLIT
++	select FONT_6x11 if FRAMEBUFFER_CONSOLE
++	help
++	 This is a virtual framebuffer device driver for the Ubicom32 architecture.
+ 
+ config FB_STI
+ 	tristate "HP STI frame buffer device support"
+--- a/drivers/video/Makefile
++++ b/drivers/video/Makefile
+@@ -132,6 +132,7 @@ obj-$(CONFIG_FB_VGA16)            += vga
+ obj-$(CONFIG_FB_OF)               += offb.o
+ obj-$(CONFIG_FB_BF54X_LQ043)	  += bf54x-lq043fb.o
+ obj-$(CONFIG_FB_BFIN_T350MCQB)	  += bfin-t350mcqb-fb.o
++obj-$(CONFIG_FB_UBICOM32)         += ubicom32fb.o
+ 
+ # the test framebuffer is last
+ obj-$(CONFIG_FB_VIRTUAL)          += vfb.o
+--- /dev/null
++++ b/drivers/video/ubicom32fb.c
+@@ -0,0 +1,777 @@
++/*
++ * drivers/video/ubicom32fb.c
++ *	Ubicom32 frame buffer driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++/*
++ * This driver was based on skeletonfb.c, Skeleton for a frame buffer device by
++ * Geert Uytterhoeven.
++ */
++
++#include <linux/device.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/version.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/fb.h>
++#include <linux/init.h>
++#include <linux/dma-mapping.h>
++#include <linux/platform_device.h>
++#include <linux/device.h>
++#include <linux/uaccess.h>
++#include <linux/interrupt.h>
++
++#include <asm/io.h>
++#include <asm/ip5000.h>
++#include <asm/vdc_tio.h>
++#include <asm/ubicom32fb.h>
++
++#define DRIVER_NAME		"ubicom32fb"
++#define DRIVER_DESCRIPTION	"Ubicom32 frame buffer driver"
++
++#define PALETTE_ENTRIES_NO	16
++
++/*
++ * Option variables
++ *
++ * vram_size:	VRAM size in kilobytes, subject to alignment 
++ */
++static int vram_size = 0;
++module_param(vram_size, int, 0);
++MODULE_PARM_DESC(vram, "VRAM size, in kilobytes to allocate, should be at least the size of one screen, subject to alignment");
++static int init_value = 0;
++module_param(init_value, int, 0);
++MODULE_PARM_DESC(init, "Initial value of the framebuffer (16-bit number).");
++
++/*
++ * fb_fix_screeninfo defines the non-changeable properties of the VDC, depending on what mode it is in.
++ */
++static struct fb_fix_screeninfo ubicom32fb_fix = {
++	.id =		"Ubicom32",
++	.type =		FB_TYPE_PACKED_PIXELS,
++	.visual =	FB_VISUAL_TRUECOLOR,
++	.accel =	FB_ACCEL_NONE
++};
++
++/*
++ * Filled in at probe time when we find out what the hardware supports
++ */
++static struct fb_var_screeninfo ubicom32fb_var;
++
++/*
++ * Private data structure
++ */
++struct ubicom32fb_drvdata {
++	struct fb_info			*fbinfo;
++	bool				cmap_alloc;
++
++	/*
++	 * The address of the framebuffer in memory
++	 */
++	void				*fb;
++	void				*fb_aligned;
++
++	/*
++	 * Total size of vram including alignment allowance
++	 */
++	u32				total_vram_size;
++	
++	/*
++	 * Interrupt to set when changing registers
++	 */
++	u32				vp_int;
++
++	/*
++	 * Optional: Interrupt used by TIO to signal us
++	 */
++	u32				rx_int;
++	
++	/*
++	 * Base address of the regs for VDC_TIO
++	 */
++	volatile struct vdc_tio_vp_regs	*regs;
++
++	/*
++	 * non-zero if we are in yuv mode
++	 */
++	u8_t				is_yuv;
++
++	/* 
++	 * Fake palette of 16 colors
++	 */
++	u32				pseudo_palette[PALETTE_ENTRIES_NO];
++
++	/*
++	 * Wait queue and lock used to block when we need to wait 
++	 * for something to happen.
++	 */
++	wait_queue_head_t		waitq;
++	struct mutex			lock;
++
++};
++
++/*
++ * ubicom32fb_set_next_frame
++ *	Sets the next frame buffer to display
++ *
++ * if sync is TRUE then this function will block until the hardware 
++ * acknowledges the change
++ */
++static inline void ubicom32fb_set_next_frame(struct ubicom32fb_drvdata *ud, void *fb, u8_t sync)
++{
++	ud->regs->next_frame_flags = ud->is_yuv ? VDCTIO_NEXT_FRAME_FLAG_YUV : 0;
++	ud->regs->next_frame = (void *)((u32_t)fb | 1);
++
++	/*
++	 * If we have interrupts, then we can wait on it
++	 */
++	if (ud->rx_int != -1) {
++		DEFINE_WAIT(wait);
++		unsigned long flags;
++
++		spin_lock_irqsave(&ud->lock, flags);
++		prepare_to_wait(&ud->waitq, &wait, TASK_INTERRUPTIBLE);
++		spin_unlock_irqrestore(&ud->lock, flags);
++		schedule();
++		finish_wait(&ud->waitq, &wait);
++		return;
++	}
++
++	/*
++	 * No interrupt, we will just spin here
++	 */
++	while (sync && ((u32_t)ud->regs->next_frame & 1));
++}
++
++/*
++ * ubicom32fb_send_command
++ *	Sends a command/data pair to the VDC
++ */
++static inline void ubicom32fb_send_command(struct ubicom32fb_drvdata *ud, u16 command, u8_t block)
++{
++	ud->regs->command = command;
++	ubicom32_set_interrupt(ud->vp_int);
++	while (block && ud->regs->command);
++}
++
++/*
++ * ubicom32fb_ioctl
++ *	Handles any ioctls sent to us
++ */
++static int ubicom32fb_ioctl(struct fb_info *fbi, unsigned int cmd,
++		       unsigned long arg)
++{
++	struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)fbi->par;
++	void __user *argp = (void __user *)arg;
++	int retval = -EFAULT;
++
++	switch (cmd) {
++	case UBICOM32FB_IOCTL_SET_NEXT_FRAME_SYNC:
++		// check alignment, return -EINVAL if necessary
++		ubicom32fb_set_next_frame(ud, argp, 1);
++		retval = 0;
++		break;
++
++	case UBICOM32FB_IOCTL_SET_NEXT_FRAME:
++		// check alignment, return -EINVAL if necessary
++		ubicom32fb_set_next_frame(ud, argp, 0);
++		retval = 0;
++		break;
++
++	case UBICOM32FB_IOCTL_SET_MODE:
++		if (!(ud->regs->caps & VDCTIO_CAPS_SUPPORTS_SCALING)) {
++			break;
++		} else {
++			struct ubicom32fb_mode mode;
++			volatile struct vdc_tio_vp_regs *regs = ud->regs;
++			u32_t flags = 0;
++
++			if (copy_from_user(&mode, argp, sizeof(mode))) {
++				break;
++			}
++			
++			regs->x_in = mode.width;
++			regs->y_in = mode.height;
++			regs->x_out = regs->xres;
++			regs->y_out = regs->yres;
++			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_SCAN_ORDER) {
++				flags |= VDCTIO_SCALE_FLAG_YUV_SCAN_ORDER;
++			}
++			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_BLOCK_ORDER) {
++				flags |= VDCTIO_SCALE_FLAG_YUV_BLOCK_ORDER;
++			}
++			ud->is_yuv = mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV;
++			if (ud->is_yuv) {
++				flags |= VDCTIO_SCALE_FLAG_YUV;
++			}
++			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_16_255) {
++				flags |= VDCTIO_SCALE_FLAG_VRANGE_16_255;
++			}
++			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_0_255) {
++				flags |= VDCTIO_SCALE_FLAG_VRANGE_0_255;
++			}
++			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VSUB) {
++				flags |= VDCTIO_SCALE_FLAG_VSUB;
++			}
++			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_2_1) {
++				flags |= VDCTIO_SCALE_FLAG_HSUB_2_1;
++			}
++			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_1_1) {
++				flags |= VDCTIO_SCALE_FLAG_HSUB_1_1;
++			}
++			if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_SCALE_ENABLE) {
++				flags |= VDCTIO_SCALE_FLAG_ENABLE;
++			}
++			if (mode.next_frame) {
++				flags |= VDCTIO_SCALE_FLAG_SET_FRAME_BUFFER;
++				regs->next_frame = mode.next_frame;
++			}
++			
++			regs->scale_flags = flags;
++			ubicom32fb_send_command(ud, VDCTIO_COMMAND_SET_SCALE_MODE, 1);
++			retval = 0;
++			break;
++		}
++
++	default:
++		retval = -ENOIOCTLCMD;
++		break;
++	}
++
++	return retval;
++}
++
++/*
++ * ubicom32fb_interrupt
++ *	Called by the OS when the TIO has set the rx_int
++ */
++static irqreturn_t ubicom32fb_interrupt(int vec, void *appdata)
++{
++	struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)appdata;
++
++	spin_lock(&ud->lock);
++	if (waitqueue_active(&ud->waitq)) {
++		wake_up(&ud->waitq);
++	}
++	spin_unlock(&ud->lock);
++
++	return IRQ_HANDLED;
++}
++
++/*
++ * ubicom32fb_pan_display
++ *	Pans the display to a given location.  Supports only y direction panning.
++ */
++static int ubicom32fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
++{
++	struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)fbi->par;
++	void *new_addr;
++
++	/*
++	 * Get the last y line that would be displayed.  Since we don't support YWRAP,
++	 * it must be less than our virtual y size.
++	 */
++	u32 lasty = var->yoffset + var->yres;
++	if (lasty > fbi->var.yres_virtual) {
++		/*
++		 * We would fall off the end of our frame buffer if we panned here.
++		 */
++		return -EINVAL;
++	}
++
++	if (var->xoffset) {
++		/*
++		 * We don't support panning in the x direction
++		 */
++		return -EINVAL;
++	}
++
++	/*
++	 * Everything looks sane, go ahead and pan
++	 *
++	 * We have to calculate a new address for the VDC to look at
++	 */
++	new_addr = ud->fb_aligned + (var->yoffset * fbi->fix.line_length);
++
++	/*
++	 * Send down the command.  The buffer will switch at the next vertical blank
++	 */
++	ubicom32fb_set_next_frame(ud, (void *)new_addr, 0);
++
++	return 0;
++}
++
++/*
++ * ubicom32fb_setcolreg
++ *	Sets a color in our virtual palette
++ */
++static int ubicom32fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *fbi)
++{
++	u32 *palette = fbi->pseudo_palette;
++
++	if (regno >= PALETTE_ENTRIES_NO) {
++		return -EINVAL;
++	}
++
++	/*
++	 * We only use 8 bits from each color
++	 */
++	red >>= 8;
++	green >>= 8;
++	blue >>= 8;
++
++	/*
++	 * Convert any grayscale values
++	 */
++	if (fbi->var.grayscale) {
++		u16 gray = red + green + blue;
++		gray += (gray >> 2) + (gray >> 3) - (gray >> 7);
++		gray >>= 2;
++		if (gray > 255) {
++			gray = 255;
++		}
++		red = gray;
++		blue = gray;
++		green = gray;
++	}
++
++	palette[regno] = (red << fbi->var.red.offset) | (green << fbi->var.green.offset) |
++			 (blue << fbi->var.blue.offset);
++
++	return 0;
++}
++
++/*
++ * ubicom32fb_mmap
++ */
++static int ubicom32fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
++{
++	struct ubicom32fb_drvdata *drvdata = (struct ubicom32fb_drvdata *)info->par;
++
++	vma->vm_start = (unsigned long)(drvdata->fb_aligned);
++
++	vma->vm_end = vma->vm_start + info->fix.smem_len;
++
++	/* For those who don't understand how mmap works, go read
++	 *   Documentation/nommu-mmap.txt.
++	 * For those that do, you will know that the VM_MAYSHARE flag
++	 * must be set in the vma->vm_flags structure on noMMU
++	 *   Other flags can be set, and are documented in
++	 *   include/linux/mm.h
++	 */
++
++	vma->vm_flags |=  VM_MAYSHARE | VM_SHARED;
++
++	return 0;
++}
++
++/*
++ * ubicom32fb_blank
++ */
++static int ubicom32fb_blank(int blank_mode, struct fb_info *fbi)
++{
++	return 0;
++#if 0
++	struct ubicom32fb_drvdata *drvdata = to_ubicom32fb_drvdata(fbi);
++
++	switch (blank_mode) {
++	case FB_BLANK_UNBLANK:
++		/* turn on panel */
++		ubicom32fb_out_be32(drvdata, REG_CTRL, drvdata->reg_ctrl_default);
++		break;
++
++	case FB_BLANK_NORMAL:
++	case FB_BLANK_VSYNC_SUSPEND:
++	case FB_BLANK_HSYNC_SUSPEND:
++	case FB_BLANK_POWERDOWN:
++		/* turn off panel */
++		ubicom32fb_out_be32(drvdata, REG_CTRL, 0);
++	default:
++		break;
++
++	}
++	return 0; /* success */
++#endif
++}
++
++static struct fb_ops ubicom32fb_ops =
++{
++	.owner			= THIS_MODULE,
++	.fb_pan_display		= ubicom32fb_pan_display,
++	.fb_setcolreg		= ubicom32fb_setcolreg,
++	.fb_blank		= ubicom32fb_blank,
++	.fb_mmap		= ubicom32fb_mmap,
++	.fb_ioctl		= ubicom32fb_ioctl,
++	.fb_fillrect		= cfb_fillrect,
++	.fb_copyarea		= cfb_copyarea,
++	.fb_imageblit		= cfb_imageblit,
++};
++
++/*
++ * ubicom32fb_release
++ */
++static int ubicom32fb_release(struct device *dev)
++{
++	struct ubicom32fb_drvdata *ud = dev_get_drvdata(dev);
++
++#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
++	//ubicom32fb_blank(VESA_POWERDOWN, &drvdata->info);
++#endif
++
++	unregister_framebuffer(ud->fbinfo);
++
++	if (ud->cmap_alloc) {
++		fb_dealloc_cmap(&ud->fbinfo->cmap);
++	}
++
++	if (ud->fb) {
++		kfree(ud->fb);
++	}
++
++	if (ud->rx_int != -1) {
++		free_irq(ud->rx_int, ud);
++	}
++
++	/* 
++	 * Turn off the display 
++	 */
++	//ubicom32fb_out_be32(drvdata, REG_CTRL, 0);
++	//iounmap(drvdata->regs);
++
++	framebuffer_release(ud->fbinfo);
++	dev_set_drvdata(dev, NULL);
++
++	return 0;
++}
++
++/*
++ * ubicom32fb_platform_probe
++ */
++static int __init ubicom32fb_platform_probe(struct platform_device *pdev)
++{
++	struct ubicom32fb_drvdata *ud;
++	struct resource *irq_resource_rx;
++	struct resource *irq_resource_tx;
++	struct resource *mem_resource;
++	struct fb_info *fbinfo;
++	int rc;
++	size_t fbsize;
++	struct device *dev = &pdev->dev;
++	int offset;
++	struct vdc_tio_vp_regs *regs;
++
++	/*
++	 * Get our resources
++	 */
++	irq_resource_tx = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
++	if (!irq_resource_tx) {
++		dev_err(dev, "No tx IRQ resource assigned\n");
++		return -ENODEV;
++	}
++
++	irq_resource_rx = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
++	if (!irq_resource_rx) {
++		dev_err(dev, "No rx IRQ resource assigned\n");
++		return -ENODEV;
++	}
++
++	mem_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (!mem_resource || !mem_resource->start) {
++		dev_err(dev, "No mem resource assigned\n");
++		return -ENODEV;
++	}
++	regs = (struct vdc_tio_vp_regs *)mem_resource->start;
++	if (regs->version != VDCTIO_VP_VERSION) {
++		dev_err(dev, "VDCTIO is not compatible with this driver tio:%x drv:%x\n", 
++			regs->version, VDCTIO_VP_VERSION);
++		return -ENODEV;
++	}
++
++	/*
++	 * This is the minimum VRAM size
++	 */
++	fbsize = regs->xres * regs->yres * (regs->bpp / 8);
++	if (!vram_size) {
++		vram_size = (fbsize + 1023) / 1024;
++	} else {
++		if (fbsize > (vram_size * 1024)) {
++			dev_err(dev, "Not enough VRAM for display, need >= %u bytes\n", fbsize);
++			return -ENOMEM; // should be ebadparam?
++		}
++	}
++
++	/*
++	 * Allocate the framebuffer instance + our private data
++	 */
++	fbinfo = framebuffer_alloc(sizeof(struct ubicom32fb_drvdata), &pdev->dev);
++	if (!fbinfo) {
++		dev_err(dev, "Not enough memory to allocate instance.\n");
++		return -ENOMEM;
++	}
++
++	/*
++	 * Fill in our private data.
++	 */
++	ud = (struct ubicom32fb_drvdata *)fbinfo->par;
++	ud->fbinfo = fbinfo;
++	ud->regs = (struct vdc_tio_vp_regs *)(mem_resource->start);
++	dev_set_drvdata(dev, ud);
++
++	ud->vp_int = irq_resource_tx->start;
++
++	/*
++	 * If we were provided an rx_irq then we need to init the appropriate
++	 * queues, locks, and functions.
++	 */
++	ud->rx_int = -1;
++	if (irq_resource_rx->start != DEVTREE_IRQ_NONE) {
++		init_waitqueue_head(&ud->waitq);
++		mutex_init(&ud->lock);
++		if (request_irq(ud->rx_int, ubicom32fb_interrupt, IRQF_SHARED, "ubicom32fb_rx", ud)) {
++			dev_err(dev, "Couldn't request rx IRQ\n");
++			rc = -ENOMEM;
++			goto fail;
++		}
++		ud->rx_int = irq_resource_rx->start;
++	}
++
++	/*
++	 * Allocate and align the requested amount of VRAM
++	 */
++	ud->total_vram_size = (vram_size * 1024) + regs->fb_align;
++	ud->fb = kmalloc(ud->total_vram_size, GFP_KERNEL);
++	if (ud->fb == NULL) {
++		dev_err(dev, "Couldn't allocate VRAM\n");
++		rc = -ENOMEM;
++		goto fail;
++	}
++
++	offset = (u32_t)ud->fb & (regs->fb_align - 1);
++	if (!offset) {
++		ud->fb_aligned = ud->fb;
++	} else {
++		offset = regs->fb_align - offset;
++		ud->fb_aligned = ud->fb + offset;
++	}
++
++	/*
++	 * Clear the entire frame buffer
++	 */
++	if (!init_value) {
++		memset(ud->fb_aligned, 0, vram_size * 1024);
++	} else {
++		unsigned short *p = ud->fb_aligned;
++		int i;
++		for (i = 0; i < ((vram_size * 1024) / sizeof(u16_t)); i++) {
++			*p++ = init_value;
++		}
++	}
++
++	/*
++	 * Fill in the fb_var_screeninfo structure
++	 */
++	memset(&ubicom32fb_var, 0, sizeof(ubicom32fb_var));
++	ubicom32fb_var.bits_per_pixel = regs->bpp;
++	ubicom32fb_var.red.offset = regs->rshift;
++	ubicom32fb_var.green.offset = regs->gshift;
++	ubicom32fb_var.blue.offset = regs->bshift;
++	ubicom32fb_var.red.length = regs->rbits;
++	ubicom32fb_var.green.length = regs->gbits;
++	ubicom32fb_var.blue.length = regs->bbits;
++	ubicom32fb_var.activate = FB_ACTIVATE_NOW;
++
++#if 0
++	/* 
++	 * Turn on the display 
++	 */
++	ud->reg_ctrl_default = REG_CTRL_ENABLE;
++	if (regs->rotate_screen)
++		ud->reg_ctrl_default |= REG_CTRL_ROTATE;
++	ubicom32fb_out_be32(ud, REG_CTRL, ud->reg_ctrl_default);
++#endif
++
++	/*
++	 * Fill in the fb_info structure
++	 */
++	ud->fbinfo->device = dev;
++	ud->fbinfo->screen_base = (void *)ud->fb_aligned;
++	ud->fbinfo->fbops = &ubicom32fb_ops;
++	ud->fbinfo->fix = ubicom32fb_fix;
++	ud->fbinfo->fix.smem_start = (u32)ud->fb_aligned;
++	ud->fbinfo->fix.smem_len = fbsize;
++	ud->fbinfo->fix.line_length = regs->xres * (regs->bpp / 8);
++
++	/*
++	 * We support panning in the y direction only
++	 */
++	ud->fbinfo->fix.xpanstep = 0;
++	ud->fbinfo->fix.ypanstep = 1;
++
++	ud->fbinfo->pseudo_palette = ud->pseudo_palette;
++	ud->fbinfo->flags = FBINFO_DEFAULT;
++	ud->fbinfo->var = ubicom32fb_var;
++	ud->fbinfo->var.xres = regs->xres;
++	ud->fbinfo->var.yres = regs->yres;
++
++	/*
++	 * We cannot pan in the X direction, so xres_virtual is regs->xres
++	 * We can pan in the Y direction, so yres_virtual is vram_size / ud->fbinfo->fix.line_length
++	 */
++	ud->fbinfo->var.xres_virtual = regs->xres;
++	ud->fbinfo->var.yres_virtual = (vram_size * 1024) / ud->fbinfo->fix.line_length;
++
++	//ud->fbinfo->var.height = regs->height_mm;
++	//ud->fbinfo->var.width = regs->width_mm;
++
++	/* 
++	 * Allocate a color map
++	 */
++	rc = fb_alloc_cmap(&ud->fbinfo->cmap, PALETTE_ENTRIES_NO, 0);
++	if (rc) {
++		dev_err(dev, "Fail to allocate colormap (%d entries)\n",
++			PALETTE_ENTRIES_NO);
++		goto fail;
++	}
++	ud->cmap_alloc = true;
++
++	/*
++	 * Register new frame buffer
++	 */
++	rc = register_framebuffer(ud->fbinfo);
++	if (rc) {
++		dev_err(dev, "Could not register frame buffer\n");
++		goto fail;
++	}
++
++	/*
++	 * Start up the VDC
++	 */
++	ud->regs->next_frame = ud->fb;
++	ubicom32fb_send_command(ud, VDCTIO_COMMAND_START, 0);
++
++	/*
++	 * Tell the log we are here
++	 */
++	dev_info(dev, "fbaddr=%p align=%p, size=%uKB screen(%ux%u) virt(%ux%u), regs=%p irqtx=%u irqrx=%u\n", 
++		ud->fb, ud->fb_aligned, vram_size, ud->fbinfo->var.xres, ud->fbinfo->var.yres, 
++		ud->fbinfo->var.xres_virtual, ud->fbinfo->var.yres_virtual, ud->regs,
++		irq_resource_tx->start, irq_resource_rx->start);
++
++	/* 
++	 * Success 
++	 */
++	return 0;
++
++fail:
++	ubicom32fb_release(dev);
++	return rc;
++}
++
++/*
++ * ubicom32fb_platform_remove
++ */
++static int ubicom32fb_platform_remove(struct platform_device *pdev)
++{
++	dev_info(&(pdev->dev), "Ubicom32 FB Driver Remove\n");
++	return ubicom32fb_release(&pdev->dev);
++}
++
++static struct platform_driver ubicom32fb_platform_driver = {
++	.probe		= ubicom32fb_platform_probe,
++	.remove		= ubicom32fb_platform_remove,
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++	},
++};
++
++#ifndef MODULE
++/*
++ * ubicom32fb_setup
++ *	Process kernel boot options
++ */
++static int __init ubicom32fb_setup(char *options)
++{
++	char *this_opt;
++
++	if (!options || !*options) {
++		return 0;
++	}
++
++	while ((this_opt = strsep(&options, ",")) != NULL) {
++		if (!*this_opt) {
++			continue;
++		}
++
++		if (!strncmp(this_opt, "init_value=", 10)) {
++			init_value = simple_strtoul(this_opt + 11, NULL, 0);
++			continue;
++		}
++
++		if (!strncmp(this_opt, "vram_size=", 10)) {
++			vram_size = simple_strtoul(this_opt + 10, NULL, 0);
++			continue;
++		}
++	}
++	return 0;
++}
++#endif /* MODULE */
++
++/*
++ * ubicom32fb_init
++ */
++static int __devinit ubicom32fb_init(void)
++{
++#ifndef MODULE
++	/*
++	 * Get kernel boot options (in 'video=ubicom32fb:<options>')
++	 */
++	char *option = NULL;
++
++	if (fb_get_options(DRIVER_NAME, &option)) {
++		return -ENODEV;
++	}
++	ubicom32fb_setup(option);
++#endif /* MODULE */
++
++	return platform_driver_register(&ubicom32fb_platform_driver);
++}
++module_init(ubicom32fb_init);
++
++/*
++ * ubicom32fb_exit
++ */
++static void __exit ubicom32fb_exit(void)
++{
++	platform_driver_unregister(&ubicom32fb_platform_driver);
++}
++module_exit(ubicom32fb_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Patrick Tjin <@ubicom.com>");
++MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
+--- /dev/null
++++ b/drivers/video/ubicom32vfb.c
+@@ -0,0 +1,492 @@
++/*
++ * drivers/video/ubicom32vfb.c
++ *	Ubicom32 virtual frame buffer driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++/*
++ * This driver was based on skeletonfb.c, Skeleton for a frame buffer device by
++ * Geert Uytterhoeven.
++ */
++
++#include <linux/device.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/version.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/fb.h>
++#include <linux/init.h>
++#include <linux/dma-mapping.h>
++#include <linux/platform_device.h>
++#include <linux/device.h>
++#include <linux/uaccess.h>
++
++#define DRIVER_NAME		"ubicom32vfb"
++#define DRIVER_DESCRIPTION	"Ubicom32 virtual frame buffer driver"
++
++#define PALETTE_ENTRIES_NO	16
++
++/*
++ * Option variables
++ *
++ * vram_size:	VRAM size in kilobytes, subject to alignment 
++ */
++static int vram_size = 0;
++module_param(vram_size, int, 0);
++MODULE_PARM_DESC(vram_size, "VRAM size, in kilobytes to allocate, should be at least the size of one screen, subject to alignment");
++
++static int xres = 320;
++module_param(xres, int, 0);
++MODULE_PARM_DESC(xres, "x (horizontal) resolution");
++
++static int yres = 240;
++module_param(yres, int, 0);
++MODULE_PARM_DESC(yres, "y (vertical) resolution");
++
++static int bgr = 0;
++module_param(bgr, int, 0);
++MODULE_PARM_DESC(bgr, "display is BGR (Blue is MSB)");
++
++/*
++ * Buffer alignment, must not be 0
++ */
++#define UBICOM32VFB_ALIGNMENT 4
++
++/*
++ * fb_fix_screeninfo defines the non-changeable properties of the VDC, depending on what mode it is in.
++ */
++static struct fb_fix_screeninfo ubicom32vfb_fix = {
++	.id =		"Ubicom32",
++	.type =		FB_TYPE_PACKED_PIXELS,
++	.visual =	FB_VISUAL_TRUECOLOR,
++	.accel =	FB_ACCEL_NONE
++};
++
++/*
++ * Filled in at probe time when we find out what the hardware supports
++ */
++static struct fb_var_screeninfo ubicom32vfb_var;
++
++/*
++ * Private data structure
++ */
++struct ubicom32vfb_drvdata {
++	struct fb_info			*fbinfo;
++	bool				cmap_alloc;
++
++	/*
++	 * The address of the framebuffer in memory
++	 */
++	void				*fb;
++	void				*fb_aligned;
++
++	/*
++	 * Total size of vram including alignment allowance
++	 */
++	u32				total_vram_size;
++	
++	/* 
++	 * Fake palette of 16 colors
++	 */
++	u32				pseudo_palette[PALETTE_ENTRIES_NO];
++};
++
++/*
++ * ubicom32vfb_pan_display
++ *	Pans the display to a given location.  Supports only y direction panning.
++ */
++static int ubicom32vfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
++{
++	struct ubicom32vfb_drvdata *ud = (struct ubicom32vfb_drvdata *)fbi->par;
++	void *new_addr;
++
++	/*
++	 * Get the last y line that would be displayed.  Since we don't support YWRAP,
++	 * it must be less than our virtual y size.
++	 */
++	u32 lasty = var->yoffset + var->yres;
++	if (lasty > fbi->var.yres_virtual) {
++		/*
++		 * We would fall off the end of our frame buffer if we panned here.
++		 */
++		return -EINVAL;
++	}
++
++	if (var->xoffset) {
++		/*
++		 * We don't support panning in the x direction
++		 */
++		return -EINVAL;
++	}
++
++	/*
++	 * Everything looks sane, go ahead and pan
++	 *
++	 * We have to calculate a new address for the VDC to look at
++	 */
++	new_addr = ud->fb_aligned + (var->yoffset * fbi->fix.line_length);
++
++	return 0;
++}
++
++/*
++ * ubicom32vfb_setcolreg
++ *	Sets a color in our virtual palette
++ */
++static int ubicom32vfb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *fbi)
++{
++	u32 *palette = fbi->pseudo_palette;
++
++	if (regno >= PALETTE_ENTRIES_NO) {
++		return -EINVAL;
++	}
++
++	/*
++	 * We only use 8 bits from each color
++	 */
++	red >>= 8;
++	green >>= 8;
++	blue >>= 8;
++
++	/*
++	 * Convert any grayscale values
++	 */
++	if (fbi->var.grayscale) {
++		u16 gray = red + green + blue;
++		gray += (gray >> 2) + (gray >> 3) - (gray >> 7);
++		gray >>= 2;
++		if (gray > 255) {
++			gray = 255;
++		}
++		red = gray;
++		blue = gray;
++		green = gray;
++	}
++
++	palette[regno] = (red << fbi->var.red.offset) | (green << fbi->var.green.offset) |
++			 (blue << fbi->var.blue.offset);
++
++	return 0;
++}
++
++/*
++ * ubicom32vfb_mmap
++ */
++static int ubicom32vfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
++{
++	struct ubicom32vfb_drvdata *drvdata = (struct ubicom32vfb_drvdata *)info->par;
++
++	vma->vm_start = (unsigned long)(drvdata->fb_aligned);
++
++	vma->vm_end = vma->vm_start + info->fix.smem_len;
++
++	/* For those who don't understand how mmap works, go read
++	 *   Documentation/nommu-mmap.txt.
++	 * For those that do, you will know that the VM_MAYSHARE flag
++	 * must be set in the vma->vm_flags structure on noMMU
++	 *   Other flags can be set, and are documented in
++	 *   include/linux/mm.h
++	 */
++
++	vma->vm_flags |=  VM_MAYSHARE | VM_SHARED;
++
++	return 0;
++}
++
++static struct fb_ops ubicom32vfb_ops =
++{
++	.owner			= THIS_MODULE,
++	.fb_pan_display		= ubicom32vfb_pan_display,
++	.fb_setcolreg		= ubicom32vfb_setcolreg,
++	.fb_mmap		= ubicom32vfb_mmap,
++	.fb_fillrect		= cfb_fillrect,
++	.fb_copyarea		= cfb_copyarea,
++	.fb_imageblit		= cfb_imageblit,
++};
++
++/*
++ * ubicom32vfb_release
++ */
++static int ubicom32vfb_release(struct device *dev)
++{
++	struct ubicom32vfb_drvdata *ud = dev_get_drvdata(dev);
++
++	unregister_framebuffer(ud->fbinfo);
++
++	if (ud->cmap_alloc) {
++		fb_dealloc_cmap(&ud->fbinfo->cmap);
++	}
++
++	if (ud->fb) {
++		kfree(ud->fb);
++	}
++
++	framebuffer_release(ud->fbinfo);
++	dev_set_drvdata(dev, NULL);
++
++	return 0;
++}
++
++/*
++ * ubicom32vfb_platform_probe
++ */
++static int __init ubicom32vfb_platform_probe(struct platform_device *pdev)
++{
++	struct ubicom32vfb_drvdata *ud;
++	struct fb_info *fbinfo;
++	int rc;
++	size_t fbsize;
++	struct device *dev = &pdev->dev;
++	int offset;
++
++	/*
++	 * This is the minimum VRAM size
++	 */
++	fbsize = xres * yres * 2;
++	if (!vram_size) {
++		vram_size = (fbsize + 1023) / 1024;
++	} else {
++		if (fbsize > (vram_size * 1024)) {
++			dev_err(dev, "Not enough VRAM for display, need >= %u bytes\n", fbsize);
++			return -ENOMEM; // should be ebadparam?
++		}
++	}
++
++	/*
++	 * Allocate the framebuffer instance + our private data
++	 */
++	fbinfo = framebuffer_alloc(sizeof(struct ubicom32vfb_drvdata), &pdev->dev);
++	if (!fbinfo) {
++		dev_err(dev, "Not enough memory to allocate instance.\n");
++		return -ENOMEM;
++	}
++
++	/*
++	 * Fill in our private data.
++	 */
++	ud = (struct ubicom32vfb_drvdata *)fbinfo->par;
++	ud->fbinfo = fbinfo;
++	dev_set_drvdata(dev, ud);
++
++	/*
++	 * Allocate and align the requested amount of VRAM
++	 */
++	ud->total_vram_size = (vram_size * 1024) + UBICOM32VFB_ALIGNMENT;
++	ud->fb = kmalloc(ud->total_vram_size, GFP_KERNEL);
++	if (ud->fb == NULL) {
++		dev_err(dev, "Couldn't allocate VRAM\n");
++		rc = -ENOMEM;
++		goto fail;
++	}
++
++	offset = (u32_t)ud->fb & (UBICOM32VFB_ALIGNMENT - 1);
++	if (!offset) {
++		ud->fb_aligned = ud->fb;
++	} else {
++		offset =  UBICOM32VFB_ALIGNMENT - offset;
++		ud->fb_aligned = ud->fb + offset;
++	}
++
++	/*
++	 * Clear the entire frame buffer
++	 */
++	memset(ud->fb_aligned, 0, vram_size * 1024);
++
++	/*
++	 * Fill in the fb_var_screeninfo structure
++	 */
++	memset(&ubicom32vfb_var, 0, sizeof(ubicom32vfb_var));
++	ubicom32vfb_var.bits_per_pixel = 16;
++	ubicom32vfb_var.red.length = 5;
++	ubicom32vfb_var.green.length = 6;
++	ubicom32vfb_var.green.offset = 5;
++	ubicom32vfb_var.blue.length = 5;
++	ubicom32vfb_var.activate = FB_ACTIVATE_NOW;
++
++	if (bgr) {
++		ubicom32vfb_var.red.offset = 0;
++		ubicom32vfb_var.blue.offset = 11;
++	} else {
++		ubicom32vfb_var.red.offset = 11;
++		ubicom32vfb_var.blue.offset = 0;
++	}
++
++	/*
++	 * Fill in the fb_info structure
++	 */
++	ud->fbinfo->device = dev;
++	ud->fbinfo->screen_base = (void *)ud->fb_aligned;
++	ud->fbinfo->fbops = &ubicom32vfb_ops;
++	ud->fbinfo->fix = ubicom32vfb_fix;
++	ud->fbinfo->fix.smem_start = (u32)ud->fb_aligned;
++	ud->fbinfo->fix.smem_len = fbsize;
++	ud->fbinfo->fix.line_length = xres * 2;
++
++	/*
++	 * We support panning in the y direction only
++	 */
++	ud->fbinfo->fix.xpanstep = 0;
++	ud->fbinfo->fix.ypanstep = 1;
++
++	ud->fbinfo->pseudo_palette = ud->pseudo_palette;
++	ud->fbinfo->flags = FBINFO_DEFAULT;
++	ud->fbinfo->var = ubicom32vfb_var;
++	ud->fbinfo->var.xres = xres;
++	ud->fbinfo->var.yres = yres;
++
++	/*
++	 * We cannot pan in the X direction, so xres_virtual is xres
++	 * We can pan in the Y direction, so yres_virtual is vram_size / ud->fbinfo->fix.line_length
++	 */
++	ud->fbinfo->var.xres_virtual = xres;
++	ud->fbinfo->var.yres_virtual = (vram_size * 1024) / ud->fbinfo->fix.line_length;
++
++	/* 
++	 * Allocate a color map
++	 */
++	rc = fb_alloc_cmap(&ud->fbinfo->cmap, PALETTE_ENTRIES_NO, 0);
++	if (rc) {
++		dev_err(dev, "Fail to allocate colormap (%d entries)\n",
++			PALETTE_ENTRIES_NO);
++		goto fail;
++	}
++	ud->cmap_alloc = true;
++
++	/*
++	 * Register new frame buffer
++	 */
++	rc = register_framebuffer(ud->fbinfo);
++	if (rc) {
++		dev_err(dev, "Could not register frame buffer\n");
++		goto fail;
++	}
++
++	/*
++	 * Tell the log we are here
++	 */
++	dev_info(dev, "fbaddr=%p align=%p, size=%uKB screen(%ux%u) virt(%ux%u)\n",
++		ud->fb, ud->fb_aligned, vram_size, ud->fbinfo->var.xres, ud->fbinfo->var.yres, 
++		ud->fbinfo->var.xres_virtual, ud->fbinfo->var.yres_virtual);
++
++	/* 
++	 * Success 
++	 */
++	return 0;
++
++fail:
++	ubicom32vfb_release(dev);
++	return rc;
++}
++
++/*
++ * ubicom32vfb_platform_remove
++ */
++static int ubicom32vfb_platform_remove(struct platform_device *pdev)
++{
++	dev_info(&(pdev->dev), "Ubicom32 FB Driver Remove\n");
++	return ubicom32vfb_release(&pdev->dev);
++}
++
++static struct platform_driver ubicom32vfb_platform_driver = {
++	.probe		= ubicom32vfb_platform_probe,
++	.remove		= ubicom32vfb_platform_remove,
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++	},
++};
++
++#ifndef MODULE
++/*
++ * ubicom32vfb_setup
++ *	Process kernel boot options
++ */
++static int __init ubicom32vfb_setup(char *options)
++{
++	char *this_opt;
++
++	if (!options || !*options) {
++		return 0;
++	}
++
++	while ((this_opt = strsep(&options, ",")) != NULL) {
++		if (!*this_opt) {
++			continue;
++		}
++
++		if (!strncmp(this_opt, "vram_size=", 10)) {
++			vram_size = simple_strtoul(this_opt + 10, NULL, 0);
++			continue;
++		}
++
++		if (!strncmp(this_opt, "bgr=", 4)) {
++			bgr = simple_strtoul(this_opt + 4, NULL, 0);
++			continue;
++		}
++
++		if (!strncmp(this_opt, "xres=", 5)) {
++			xres = simple_strtoul(this_opt + 5, NULL, 0);
++			continue;
++		}
++
++		if (!strncmp(this_opt, "yres=", 5)) {
++			yres = simple_strtoul(this_opt + 5, NULL, 0);
++			continue;
++		}
++	}
++	return 0;
++}
++#endif /* MODULE */
++
++/*
++ * ubicom32vfb_init
++ */
++static int __devinit ubicom32vfb_init(void)
++{
++#ifndef MODULE
++	/*
++	 * Get kernel boot options (in 'video=ubicom32vfb:<options>')
++	 */
++	char *option = NULL;
++
++	if (fb_get_options(DRIVER_NAME, &option)) {
++		return -ENODEV;
++	}
++	ubicom32vfb_setup(option);
++#endif /* MODULE */
++
++	return platform_driver_register(&ubicom32vfb_platform_driver);
++}
++module_init(ubicom32vfb_init);
++
++/*
++ * ubicom32vfb_exit
++ */
++static void __exit ubicom32vfb_exit(void)
++{
++	platform_driver_unregister(&ubicom32vfb_platform_driver);
++}
++module_exit(ubicom32vfb_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Patrick Tjin <@ubicom.com>");
++MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
+--- a/drivers/watchdog/Kconfig
++++ b/drivers/watchdog/Kconfig
+@@ -856,6 +856,19 @@ config WATCHDOG_RIO
+ 	  machines.  The watchdog timeout period is normally one minute but
+ 	  can be changed with a boot-time parameter.
+ 
++# Ubicom32
++
++config UBI32_WDT
++	tristate "Ubicom32 Hardware Watchdog support"
++	depends on UBICOM32
++	---help---
++	  If you say yes here you will get support for the Ubicom32 On-Chip
++	  Watchdog Timer. If you have one of these processors and wish to
++	  have watchdog support enabled, say Y, otherwise say N.
++
++	  To compile this driver as a module, choose M here: the
++	  module will be called ubi32_wdt.
++
+ # XTENSA Architecture
+ 
+ #
+--- a/drivers/watchdog/Makefile
++++ b/drivers/watchdog/Makefile
+@@ -130,6 +130,9 @@ obj-$(CONFIG_SH_WDT) += shwdt.o
+ obj-$(CONFIG_WATCHDOG_RIO)		+= riowd.o
+ obj-$(CONFIG_WATCHDOG_CP1XXX)		+= cpwd.o
+ 
++# Ubicom32 Architecture
++obj-$(CONFIG_UBI32_WDT)			+= ubi32_wdt.o
++
+ # XTENSA Architecture
+ 
+ # Architecture Independant
+--- /dev/null
++++ b/drivers/watchdog/ubi32_wdt.c
+@@ -0,0 +1,630 @@
++/*
++ * drivers/watchdog/ubi32_wdt.c
++ *   Ubicom32 Watchdog Driver
++ *
++ * Originally based on softdog.c
++ * Copyright 2006-2007 Analog Devices Inc.
++ * Copyright 2006-2007 Michele d'Amico
++ * Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++#include <linux/platform_device.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/types.h>
++#include <linux/timer.h>
++#include <linux/miscdevice.h>
++#include <linux/watchdog.h>
++#include <linux/fs.h>
++#include <linux/notifier.h>
++#include <linux/reboot.h>
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/uaccess.h>
++#include <asm/ip5000.h>
++
++#define WATCHDOG_NAME "ubi32-wdt"
++#define PFX WATCHDOG_NAME ": "
++
++#define OSC1_FREQ 12000000
++#define WATCHDOG_SEC_TO_CYC(x) (OSC1_FREQ * (x))
++#define WATCHDOG_MAX_SEC (0xffffffff / OSC1_FREQ)
++
++#define MIN_PROCESSOR_ADDRESS 0x03000000
++
++static DEFINE_SPINLOCK(ubi32_wdt_spinlock);
++
++#define WATCHDOG_TIMEOUT 20
++
++#if defined(CONFIG_WATCHDOG_NOWAYOUT)
++#define WATCHDOG_NOWAYOUT 1
++#else
++#define WATCHDOG_NOWAYOUT 0
++#endif
++
++static unsigned int timeout = WATCHDOG_TIMEOUT;
++static int nowayout = WATCHDOG_NOWAYOUT;
++static struct watchdog_info ubi32_wdt_info;
++static unsigned long open_check;
++static char expect_close;
++
++#if !defined(CONFIG_SMP)
++#define UBI32_WDT_LOCK(lock, flags) local_irq_save(flags)
++#define UBI32_WDT_UNLOCK(lock, flags) local_irq_restore(flags)
++#define UBI32_WDT_LOCK_CHECK()
++#else
++#define UBI32_WDT_LOCK(lock, flags) spin_lock_irqsave((lock), (flags));
++#define UBI32_WDT_UNLOCK(lock, flags) spin_unlock_irqrestore((lock), (flags));
++#define UBI32_WDT_LOCK_CHECK() BUG_ON(!spin_is_locked(&ubi32_wdt_spinlock));
++#endif
++
++/*
++ * ubi32_wdt_remaining()
++ * 	Return the approximate number of seconds remaining
++ */
++static int ubi32_wdt_remaining(void)
++{
++	int compare;
++	int curr;
++
++	UBI32_WDT_LOCK_CHECK();
++
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++	compare = ubicom32_read_reg(&UBICOM32_IO_TIMER->wdcom);
++	curr = ubicom32_read_reg(&UBICOM32_IO_TIMER->mptval);
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++	return (compare - curr) / OSC1_FREQ;
++
++}
++
++/*
++ * ubi32_wdt_keepalive()
++ *	Keep the Userspace Watchdog Alive
++ *
++ * The Userspace watchdog got a KeepAlive: schedule the next timeout.
++ */
++static int ubi32_wdt_keepalive(void)
++{
++	UBI32_WDT_LOCK_CHECK();
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcom,
++			ubicom32_read_reg(&UBICOM32_IO_TIMER->mptval)
++			+ WATCHDOG_SEC_TO_CYC(timeout));
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++	return 0;
++}
++
++/*
++ * ubi32_wdt_stop()
++ *	Stop the on-chip Watchdog
++ */
++static int ubi32_wdt_stop(void)
++{
++	UBI32_WDT_LOCK_CHECK();
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcfg, TIMER_WATCHDOG_DISABLE);
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++	return 0;
++}
++
++/*
++ * ubi32_wdt_start()
++ *	Start the on-chip Watchdog
++ */
++static int ubi32_wdt_start(void)
++{
++	UBI32_WDT_LOCK_CHECK();
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcom,
++			ubicom32_read_reg(&UBICOM32_IO_TIMER->mptval)
++			+ WATCHDOG_SEC_TO_CYC(timeout));
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcfg, ~TIMER_WATCHDOG_DISABLE);
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++	return 0;
++}
++
++/*
++ * ubi32_wdt_running()
++ * 	Return true if the watchdog is configured
++ */
++static int ubi32_wdt_running(void)
++{
++	int enabled;
++
++	UBI32_WDT_LOCK_CHECK();
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++	enabled = ubicom32_read_reg(&UBICOM32_IO_TIMER->wdcfg) == ~TIMER_WATCHDOG_DISABLE;
++	ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++	return enabled;
++}
++
++/*
++ * ubi32_wdt_set_timeout()
++ *	Set the Userspace Watchdog timeout
++ *
++ * - @t: new timeout value (in seconds)
++ */
++static int ubi32_wdt_set_timeout(unsigned long t)
++{
++	UBI32_WDT_LOCK_CHECK();
++
++	if (t > WATCHDOG_MAX_SEC) {
++		printk(KERN_WARNING PFX "request to large: %ld [1-%d] sec)\n", t, WATCHDOG_MAX_SEC);
++		return -EINVAL;
++	}
++
++	/*
++	 * If we are running, then reset the time value so
++	 * that the new value has an immediate effect.
++	 */
++	timeout = t;
++	if (ubi32_wdt_running()) {
++		ubi32_wdt_keepalive();
++	}
++	return 0;
++}
++
++/*
++ * ubi32_wdt_open()
++ *	Open the Device
++ */
++static int ubi32_wdt_open(struct inode *inode, struct file *file)
++{
++	unsigned long flags;
++
++	if (test_and_set_bit(0, &open_check))
++		return -EBUSY;
++
++	if (nowayout)
++		__module_get(THIS_MODULE);
++
++	spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++	ubi32_wdt_start();
++	spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++
++	return nonseekable_open(inode, file);
++}
++
++/*
++ * ubi32_wdt_close()
++ *	Close the Device
++ */
++static int ubi32_wdt_release(struct inode *inode, struct file *file)
++{
++	unsigned long flags;
++
++	/*
++	 * If we don't expect a close, then the watchdog continues
++	 * even though the device is closed.  The caller will have
++	 * a full timeout value to reopen the device and continue
++	 * stroking it.
++	 */
++	if (expect_close != 42) {
++		printk(KERN_CRIT PFX
++			"Unexpected close, not stopping watchdog!\n");
++		spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++		ubi32_wdt_keepalive();
++		spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++	} else {
++		spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++		ubi32_wdt_stop();
++		spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++	}
++
++	expect_close = 0;
++	clear_bit(0, &open_check);
++	return 0;
++}
++
++/*
++ * ubi32_wdt_write()
++ *	Write to Device
++ *
++ * If the user writes nothing, nothing happens.
++ * If the user writes a V, then we expect a close and allow a release.
++ * If the user writes anything else, it is ignored.
++ */
++static ssize_t ubi32_wdt_write(struct file *file, const char __user *data,
++						size_t len, loff_t *ppos)
++{
++	size_t i;
++	unsigned long flags;
++
++	/*
++	 * Every write resets the expect_close.  The last write
++	 * must be a V to allow shutdown on close.
++	 */
++	expect_close = 0;
++
++	/*
++	 * Empty writes still ping.
++	 */
++	if (!len) {
++		goto ping;
++	}
++
++	/*
++	 * If nowayout is set, it does not matter if the caller
++	 * is trying to send the magic 'V' we will not allow a
++	 * close to stop us.
++	 */
++	if (nowayout) {
++		goto ping;
++	}
++
++	/*
++	 * See if the program wrote a 'V' and if so disable
++	 * the watchdog on release.
++	 */
++	for (i = 0; i < len; i++) {
++		char c;
++		if (get_user(c, data + i)) {
++			return -EFAULT;
++		}
++
++		if (c == 'V') {
++			expect_close = 42;
++		}
++	}
++
++ping:
++	spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++	ubi32_wdt_keepalive();
++	spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++	return len;
++}
++
++/*
++ * ubi32_wdt_ioctl()
++ *	Query the watchdog device.
++ *
++ * Query basic information from the device or ping it, as outlined by the
++ * watchdog API.
++ */
++static long ubi32_wdt_ioctl(struct file *file,
++				unsigned int cmd, unsigned long arg)
++{
++	void __user *argp = (void __user *)arg;
++	int __user *p = argp;
++
++	switch (cmd) {
++	case WDIOC_GETSUPPORT:
++		if (copy_to_user(argp, &ubi32_wdt_info, sizeof(ubi32_wdt_info))) {
++			return -EFAULT;
++		}
++		return 0;
++
++	case WDIOC_GETSTATUS: {
++		unsigned long flags;
++		int running;
++
++		spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++		running = ubi32_wdt_running();
++		spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++		return running;
++	}
++
++	case WDIOC_GETBOOTSTATUS:
++		return ubicom32_get_reset_reason();
++
++	case WDIOC_SETOPTIONS: {
++		unsigned long flags;
++		int options, ret = -EINVAL;
++
++		/*
++		 * The sample application does not pass a pointer
++		 * but directly passes a value of 1 or 2; however
++		 * all of the implementations (and thus probably
++		 * the real applications) pass a pointer to a value.
++		 *
++		 * It should be noted that  WDIOC_SETOPTIONS is defined as
++		 * _IOR(WATCHDOG_IOCTL_BASE, 4, int), which means
++		 * that it should be an int and NOT a pointer.
++		 *
++		 * TODO: Examine this code for future chips.
++		 * TODO: Report the sample code defect.
++		 */
++		if ((int)p < MIN_PROCESSOR_ADDRESS) {
++			options = (int)p;
++		} else {
++			if (get_user(options, p))
++			return -EFAULT;
++		}
++
++		spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++		if (options & WDIOS_DISABLECARD) {
++			ubi32_wdt_stop();
++			ret = 0;
++		}
++		if (options & WDIOS_ENABLECARD) {
++			ubi32_wdt_start();
++			ret = 0;
++		}
++		spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++		return ret;
++	}
++
++	case WDIOC_KEEPALIVE: {
++		unsigned long flags;
++
++		spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++		ubi32_wdt_keepalive();
++		spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++		return 0;
++	}
++
++	case WDIOC_SETTIMEOUT: {
++		int new_timeout;
++		unsigned long flags;
++		int ret  = 0;
++
++		if (get_user(new_timeout, p))
++			return -EFAULT;
++
++		spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++		ret = ubi32_wdt_set_timeout(new_timeout);
++		spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++		return ret;
++
++	}
++
++	case WDIOC_GETTIMEOUT:
++		return put_user(timeout, p);
++
++	case WDIOC_GETTIMELEFT: {
++		unsigned long flags;
++		int remaining = 0;
++
++		spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++		remaining = ubi32_wdt_remaining();
++		spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++		return put_user(remaining, p);
++	}
++
++	default:
++		return -ENOTTY;
++	}
++}
++
++/*
++ * ubi32_wdt_notify_sys()
++ *	Notification callback function for system events.
++ *
++ * Turn off the watchdog during a SYS_DOWN or SYS_HALT.
++ */
++static int ubi32_wdt_notify_sys(struct notifier_block *this,
++					unsigned long code, void *unused)
++{
++	if (code == SYS_DOWN || code == SYS_HALT) {
++		unsigned long flags;
++
++		spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++		ubi32_wdt_stop();
++		spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++	}
++
++	return NOTIFY_DONE;
++}
++
++#ifdef CONFIG_PM
++static int state_before_suspend;
++
++/*
++ * ubi32_wdt_suspend()
++ * 	suspend the watchdog
++ *
++ * Remember if the watchdog was running and stop it.
++ */
++static int ubi32_wdt_suspend(struct platform_device *pdev, pm_message_t state)
++{
++	unsigned long flags;
++	spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++	state_before_suspend = ubi32_wdt_running();
++	ubi32_wdt_stop();
++	spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++
++	return 0;
++}
++
++/*
++ * ubi32_wdt_resume()
++ * 	Resume the watchdog
++ *
++ * If the watchdog was running, turn it back on.
++ */
++static int ubi32_wdt_resume(struct platform_device *pdev)
++{
++	if (state_before_suspend) {
++		unsigned long flags;
++		spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++		ubi32_wdt_set_timeout(timeout);
++		ubi32_wdt_start();
++		spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++	}
++
++	return 0;
++}
++#else
++# define ubi32_wdt_suspend NULL
++# define ubi32_wdt_resume NULL
++#endif
++
++static const struct file_operations ubi32_wdt_fops = {
++	.owner		= THIS_MODULE,
++	.llseek		= no_llseek,
++	.write    	= ubi32_wdt_write,
++	.unlocked_ioctl	= ubi32_wdt_ioctl,
++	.open		= ubi32_wdt_open,
++	.release	= ubi32_wdt_release,
++};
++
++static struct miscdevice ubi32_wdt_miscdev = {
++	.minor    = WATCHDOG_MINOR,
++	.name     = "watchdog",
++	.fops     = &ubi32_wdt_fops,
++};
++
++static struct watchdog_info ubi32_wdt_info = {
++	.identity = "Ubicom32 Watchdog",
++	.options  = WDIOF_SETTIMEOUT |
++		    WDIOF_KEEPALIVEPING |
++		    WDIOF_MAGICCLOSE,
++};
++
++static struct notifier_block ubi32_wdt_notifier = {
++	.notifier_call = ubi32_wdt_notify_sys,
++};
++
++/*
++ * ubi32_wdt_probe()
++ * 	Probe/register the watchdog module
++ *
++ * Registers the misc device and notifier handler.  Actual device
++ * initialization is handled by ubi32_wdt_open().
++ */
++static int __devinit ubi32_wdt_probe(struct platform_device *pdev)
++{
++	int ret;
++
++	ret = register_reboot_notifier(&ubi32_wdt_notifier);
++	if (ret) {
++		printk(KERN_ERR PFX
++			"cannot register reboot notifier (err=%d)\n", ret);
++		return ret;
++	}
++
++	ret = misc_register(&ubi32_wdt_miscdev);
++	if (ret) {
++		printk(KERN_ERR PFX
++			"cannot register miscdev on minor=%d (err=%d)\n",
++				WATCHDOG_MINOR, ret);
++		unregister_reboot_notifier(&ubi32_wdt_notifier);
++		return ret;
++	}
++
++	printk(KERN_INFO PFX "initialized: timeout=%d sec (nowayout=%d)\n",
++	       timeout, nowayout);
++
++	return 0;
++}
++
++/*
++ * ubi32_wdt_remove()
++ * 	Uninstall the module
++ *
++ * Unregisters the misc device and notifier handler.  Actual device
++ * deinitialization is handled by ubi32_wdt_close().
++ */
++static int __devexit ubi32_wdt_remove(struct platform_device *pdev)
++{
++	misc_deregister(&ubi32_wdt_miscdev);
++	unregister_reboot_notifier(&ubi32_wdt_notifier);
++	return 0;
++}
++
++static struct platform_device *ubi32_wdt_device;
++
++static struct platform_driver ubi32_wdt_driver = {
++	.probe     = ubi32_wdt_probe,
++	.remove    = __devexit_p(ubi32_wdt_remove),
++	.suspend   = ubi32_wdt_suspend,
++	.resume    = ubi32_wdt_resume,
++	.driver    = {
++		.name  = WATCHDOG_NAME,
++		.owner = THIS_MODULE,
++	},
++};
++
++/*
++ * ubi32_wdt_init()
++ * 	Initialize the watchdog.
++ *
++ * Checks the module params and registers the platform device & driver.
++ * Real work is in the platform probe function.
++ */
++static int __init ubi32_wdt_init(void)
++{
++	unsigned long flags;
++	int ret;
++
++	/*
++	 * Check that the timeout value is within range
++	 */
++	spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++	ret = ubi32_wdt_set_timeout(timeout);
++	spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++	if (ret) {
++		return ret;
++	}
++
++	/*
++	 * Since this is an on-chip device and needs no board-specific
++	 * resources, we'll handle all the platform device stuff here.
++	 */
++	ret = platform_driver_register(&ubi32_wdt_driver);
++	if (ret) {
++		printk(KERN_ERR PFX "unable to register driver\n");
++		return ret;
++	}
++
++	ubi32_wdt_device = platform_device_register_simple(WATCHDOG_NAME, -1, NULL, 0);
++	if (IS_ERR(ubi32_wdt_device)) {
++		printk(KERN_ERR PFX "unable to register device\n");
++		platform_driver_unregister(&ubi32_wdt_driver);
++		return PTR_ERR(ubi32_wdt_device);
++	}
++
++	return 0;
++}
++
++/*
++ * ubi32_wdt_exit()
++ * 	Deinitialize module
++ *
++ * Back out the platform device & driver steps.  Real work is in the
++ * platform remove function.
++ */
++static void __exit ubi32_wdt_exit(void)
++{
++	platform_device_unregister(ubi32_wdt_device);
++	platform_driver_unregister(&ubi32_wdt_driver);
++}
++
++module_init(ubi32_wdt_init);
++module_exit(ubi32_wdt_exit);
++
++MODULE_AUTHOR("Sol Kavy<sol@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 Watchdog Device Driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
++
++module_param(timeout, uint, 0);
++MODULE_PARM_DESC(timeout,
++	"Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default="
++		__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
++
++module_param(nowayout, int, 0);
++MODULE_PARM_DESC(nowayout,
++	"Watchdog cannot be stopped once started (default="
++		__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+--- a/fs/binfmt_flat.c
++++ b/fs/binfmt_flat.c
+@@ -54,6 +54,10 @@
+ #define	DBG_FLT(a...)
+ #endif
+ 
++#ifndef ARCH_FLAT_ALIGN
++#define ARCH_FLAT_ALIGN 0
++#endif
++
+ #define RELOC_FAILED 0xff00ff01		/* Relocation incorrect somewhere */
+ #define UNLOADED_LIB 0x7ff000ff		/* Placeholder for unused library */
+ 
+@@ -127,10 +131,10 @@ static unsigned long create_flat_tables(
+ 		--sp; put_user((unsigned long) argv, sp);
+ 	}
+ 
+-	put_user(argc,--sp);
++	--sp; put_user(argc,sp);
+ 	current->mm->arg_start = (unsigned long) p;
+ 	while (argc-->0) {
+-		put_user((unsigned long) p, argv++);
++		put_user((unsigned long) p, argv); argv++;
+ 		do {
+ 			get_user(dummy, p); p++;
+ 		} while (dummy);
+@@ -425,6 +429,7 @@ static int load_flat_file(struct linux_b
+ 	loff_t fpos;
+ 	unsigned long start_code, end_code;
+ 	int ret;
++	int flush_happened = 0;
+ 
+ 	hdr = ((struct flat_hdr *) bprm->buf);		/* exec-header */
+ 	inode = bprm->file->f_path.dentry->d_inode;
+@@ -510,6 +515,7 @@ static int load_flat_file(struct linux_b
+ 
+ 		/* OK, This is the point of no return */
+ 		set_personality(PER_LINUX_32BIT);
++		flush_happened = 1;
+ 	}
+ 
+ 	/*
+@@ -524,6 +530,12 @@ static int load_flat_file(struct linux_b
+ 	 * it all together.
+ 	 */
+ 	if ((flags & (FLAT_FLAG_RAM|FLAT_FLAG_GZIP)) == 0) {
++
++#ifdef ARCH_FLAT_ALIGN_TEXT
++		printk("Unable to mmap rom with ARCH alignment requirements\n");
++		ret = -ENOEXEC;
++		goto err;
++#endif
+ 		/*
+ 		 * this should give us a ROM ptr,  but if it doesn't we don't
+ 		 * really care
+@@ -542,7 +554,7 @@ static int load_flat_file(struct linux_b
+ 			goto err;
+ 		}
+ 
+-		len = data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long);
++		len = data_len + extra + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN);
+ 		down_write(&current->mm->mmap_sem);
+ 		realdatastart = do_mmap(0, 0, len,
+ 			PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0);
+@@ -565,7 +577,7 @@ static int load_flat_file(struct linux_b
+ 			ret = realdatastart;
+ 			goto err;
+ 		}
+-		datapos = realdatastart + MAX_SHARED_LIBS * sizeof(unsigned long);
++		datapos = realdatastart + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN);
+ 
+ 		DBG_FLT("BINFMT_FLAT: Allocated data+bss+stack (%d bytes): %x\n",
+ 				(int)(data_len + bss_len + stack_len), (int)datapos);
+@@ -594,7 +606,11 @@ static int load_flat_file(struct linux_b
+ 
+ 	} else {
+ 
+-		len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long);
++		len = text_len + data_len + extra + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN);
++#ifdef ARCH_FLAT_ALIGN_TEXT
++		/* Reserve space for the text alignment. */
++		len += ARCH_FLAT_ALIGN;
++#endif
+ 		down_write(&current->mm->mmap_sem);
+ 		textpos = do_mmap(0, 0, len,
+ 			PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
+@@ -617,11 +633,14 @@ static int load_flat_file(struct linux_b
+ 			goto err;
+ 		}
+ 
++		memp = textpos;
++#ifdef ARCH_FLAT_ALIGN_TEXT
++		textpos = ALIGN(textpos + sizeof(struct flat_hdr), ARCH_FLAT_ALIGN) - sizeof(struct flat_hdr);
++#endif
+ 		realdatastart = textpos + ntohl(hdr->data_start);
+-		datapos = realdatastart + MAX_SHARED_LIBS * sizeof(unsigned long);
++		datapos = realdatastart + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN);
+ 		reloc = (unsigned long *) (textpos + ntohl(hdr->reloc_start) +
+-				MAX_SHARED_LIBS * sizeof(unsigned long));
+-		memp = textpos;
++					   ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN));
+ 
+ #ifdef CONFIG_BINFMT_ZFLAT
+ 		/*
+@@ -657,7 +676,7 @@ static int load_flat_file(struct linux_b
+ 		}
+ 		if (result >= (unsigned long)-4096) {
+ 			printk("Unable to read code+data+bss, errno %d\n",(int)-result);
+-			do_munmap(current->mm, textpos, text_len + data_len + extra +
++			do_munmap(current->mm, memp, text_len + data_len + extra +
+ 				MAX_SHARED_LIBS * sizeof(unsigned long));
+ 			ret = result;
+ 			goto err;
+@@ -670,6 +689,9 @@ static int load_flat_file(struct linux_b
+ 
+ 	/* The main program needs a little extra setup in the task structure */
+ 	start_code = textpos + sizeof (struct flat_hdr);
++#ifdef ARCH_FLAT_ALIGN_TEXT
++	BUG_ON(ALIGN(start_code, ARCH_FLAT_ALIGN) != start_code);
++#endif
+ 	end_code = textpos + text_len;
+ 	if (id == 0) {
+ 		current->mm->start_code = start_code;
+@@ -796,6 +818,13 @@ static int load_flat_file(struct linux_b
+ 
+ 	return 0;
+ err:
++	if (flush_happened) {
++		/*
++		 * The parent process has already started running. We cannot allow the child to return back to user space
++		 * as this child is still uning the parent stack and 2 will clobber each other. We are going to kill this child.
++		 */
++		do_exit(SIGTERM);
++	}
+ 	return ret;
+ }
+ 
+--- a/fs/Kconfig.binfmt
++++ b/fs/Kconfig.binfmt
+@@ -30,7 +30,7 @@ config COMPAT_BINFMT_ELF
+ config BINFMT_ELF_FDPIC
+ 	bool "Kernel support for FDPIC ELF binaries"
+ 	default y
+-	depends on (FRV || BLACKFIN || (SUPERH32 && !MMU))
++	depends on (FRV || BLACKFIN || (SUPERH32 && !MMU) || UBICOM32)
+ 	help
+ 	  ELF FDPIC binaries are based on ELF, but allow the individual load
+ 	  segments of a binary to be located in memory independently of each
+--- a/include/asm-generic/dma-mapping.h
++++ b/include/asm-generic/dma-mapping.h
+@@ -255,7 +255,7 @@ dma_sync_sg_for_device(struct device *de
+ }
+ 
+ static inline int
+-dma_error(dma_addr_t dma_addr)
++dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+ {
+ 	return 0;
+ }
+--- a/include/linux/elf-em.h
++++ b/include/linux/elf-em.h
+@@ -41,6 +41,7 @@
+  * up with a final number.
+  */
+ #define EM_ALPHA	0x9026
++#define EM_UBICOM32 	        0xde3d	/* Ubicom32; no ABI */
+ 
+ /* Bogus old v850 magic number, used by old tools. */
+ #define EM_CYGNUS_V850	0x9080
+--- a/include/linux/oprofile.h
++++ b/include/linux/oprofile.h
+@@ -100,6 +100,8 @@ void oprofile_add_sample(struct pt_regs 
+  */
+ void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
+ 				unsigned long event, int is_kernel);
++void oprofile_add_ext_sample_cpu(unsigned long pc, struct pt_regs * const regs,
++				unsigned long event, int is_kernel, int cpu);
+ 
+ /* Use this instead when the PC value is not from the regs. Doesn't
+  * backtrace. */
+--- a/include/linux/serial_core.h
++++ b/include/linux/serial_core.h
+@@ -158,6 +158,9 @@
+ /* SH-SCI */
+ #define PORT_SCIFA	83
+ 
++/* Ubicom32 */
++#define PORT_UBI32_UARTTIO	84
++
+ #ifdef __KERNEL__
+ 
+ #include <linux/compiler.h>
+--- a/kernel/module.c
++++ b/kernel/module.c
+@@ -2624,6 +2624,9 @@ static int m_show(struct seq_file *m, vo
+ 	/* Used by oprofile and other similar tools. */
+ 	seq_printf(m, " 0x%p", mod->module_core);
+ 
++#ifdef ARCH_PROC_MODULES_EXTRA
++	ARCH_PROC_MODULES_EXTRA(m, mod);
++#endif
+ 	/* Taints info */
+ 	if (mod->taints)
+ 		seq_printf(m, " %s", module_flags(mod, buf));
+--- a/kernel/sched_clock.c
++++ b/kernel/sched_clock.c
+@@ -37,7 +37,7 @@
+  */
+ unsigned long long __attribute__((weak)) sched_clock(void)
+ {
+-	return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
++	return (get_jiffies_64() - INITIAL_JIFFIES) * (NSEC_PER_SEC / HZ);
+ }
+ 
+ static __read_mostly int sched_clock_running;
+--- a/lib/Kconfig.debug
++++ b/lib/Kconfig.debug
+@@ -549,7 +549,7 @@ config FRAME_POINTER
+ 	bool "Compile the kernel with frame pointers"
+ 	depends on DEBUG_KERNEL && \
+ 		(X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || \
+-		 AVR32 || SUPERH || BLACKFIN || MN10300)
++		 AVR32 || SUPERH || BLACKFIN || MN10300 || UBICOM32)
+ 	default y if DEBUG_INFO && UML
+ 	help
+ 	  If you say Y here the resulting kernel image will be slightly larger
+--- a/mm/Makefile
++++ b/mm/Makefile
+@@ -34,3 +34,5 @@ obj-$(CONFIG_MIGRATION) += migrate.o
+ obj-$(CONFIG_SMP) += allocpercpu.o
+ obj-$(CONFIG_QUICKLIST) += quicklist.o
+ obj-$(CONFIG_CGROUP_MEM_RES_CTLR) += memcontrol.o page_cgroup.o
++
++CFLAGS_slab.o := $(PROFILING) -O2
+--- a/scripts/mod/file2alias.c
++++ b/scripts/mod/file2alias.c
+@@ -753,6 +753,15 @@ void handle_moddevtable(struct module *m
+ 			+ sym->st_value;
+ 	}
+ 
++	/*
++ 	 * somehow our gcc is not generating st_size correctly and set 0 for some symbols.
++ 	 * and 0 size will break do_table since it adjust size to (size - id_size)
++ 	 * this is to make sure st_size fall in range.
++ 	 */
++	if (sym->st_size == 0 || sym->st_size > info->sechdrs[sym->st_shndx].sh_size) {
++		sym->st_size = info->sechdrs[sym->st_shndx].sh_size;
++	}
++
+ 	if (sym_is(symname, "__mod_pci_device_table"))
+ 		do_table(symval, sym->st_size,
+ 			 sizeof(struct pci_device_id), "pci",
+--- a/sound/Kconfig
++++ b/sound/Kconfig
+@@ -80,6 +80,8 @@ source "sound/parisc/Kconfig"
+ 
+ source "sound/soc/Kconfig"
+ 
++source "sound/ubicom32/Kconfig"
++
+ endif # SND
+ 
+ menuconfig SOUND_PRIME
+--- a/sound/Makefile
++++ b/sound/Makefile
+@@ -6,7 +6,7 @@ obj-$(CONFIG_SOUND_PRIME) += sound_firmw
+ obj-$(CONFIG_SOUND_PRIME) += oss/
+ obj-$(CONFIG_DMASOUND) += oss/
+ obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \
+-	sparc/ spi/ parisc/ pcmcia/ mips/ soc/
++	sparc/ spi/ parisc/ pcmcia/ mips/ soc/ ubicom32/
+ obj-$(CONFIG_SND_AOA) += aoa/
+ 
+ # This one must be compilable even if sound is configured out
+--- /dev/null
++++ b/sound/ubicom32/Kconfig
+@@ -0,0 +1,36 @@
++# ALSA Ubicom32 drivers
++
++menuconfig SND_UBI32
++	tristate "Ubicom32 sound devices"
++	select SND_PCM
++	default n
++	help
++	  Say Y here to include support for audio on the Ubicom32 platform.
++	  To compile this driver as a module, say M here: the module will be
++	  called snd_ubi32.
++	  
++if SND_UBI32
++
++config SND_UBI32_AUDIO_GENERIC
++	bool "Generic Codec Support"
++	default n
++	help
++	  Generic codecs
++
++comment "I2C Based Codecs"
++
++config SND_UBI32_AUDIO_CS4350
++	bool "Cirrus Logic CS4350 DAC"
++	depends on I2C
++	default n
++	help
++	  Support for the Cirrus Logic CS4350 DAC.
++
++config SND_UBI32_AUDIO_CS4384
++	bool "Cirrus Logic CS4384 DAC"
++	depends on I2C
++	default n
++	help
++	  Support for the Cirrus Logic CS4384 DAC.
++
++endif #SND_UBI32
+--- /dev/null
++++ b/sound/ubicom32/Makefile
+@@ -0,0 +1,39 @@
++#
++# sound/ubicom32/Makefile
++#	Makefile for ALSA
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port.  If not, 
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++#   arch/m68knommu
++#   arch/blackfin
++#   arch/parisc
++#
++
++CFLAGS_ubi32.o += -O2
++snd-ubi32-pcm-objs := ubi32-pcm.o
++snd-ubi32-generic-objs := ubi32-generic.o
++snd-ubi32-cs4350-objs := ubi32-cs4350.o
++snd-ubi32-cs4384-objs := ubi32-cs4384.o
++
++# Toplevel Module Dependency
++obj-$(CONFIG_SND_UBI32) += snd-ubi32-pcm.o
++obj-$(CONFIG_SND_UBI32_AUDIO_GENERIC) += snd-ubi32-generic.o
++obj-$(CONFIG_SND_UBI32_AUDIO_CS4350) += snd-ubi32-cs4350.o
++obj-$(CONFIG_SND_UBI32_AUDIO_CS4384) += snd-ubi32-cs4384.o
+--- /dev/null
++++ b/sound/ubicom32/ubi32-cs4350.c
+@@ -0,0 +1,286 @@
++/*
++ * sound/ubicom32/ubi32-cs4350.c
++ *	Interface to ubicom32 virtual audio peripheral - using CS4350 DAC
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/i2c.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/initval.h>
++#include "ubi32.h"
++
++#define DRIVER_NAME "snd-ubi32-cs4350"
++
++/*
++ * Module properties
++ */
++static const struct i2c_device_id snd_ubi32_cs4350_id[] = {
++	{"cs4350", 0 },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, ubicom32audio_id);
++
++static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
++
++/*
++ * snd_ubi32_cs4350_free
++ *	Card private data free function
++ */
++void snd_ubi32_cs4350_free(struct snd_card *card)
++{
++	//struct ubi32_snd_priv *ubi32_priv = card->private_data;
++
++	/*
++	 * Free all the fields in the snd_ubi32_priv struct
++	 */
++	// Nothing to free at this time because ubi32_priv just maintains pointers
++}
++
++/*
++ * snd_ubi32_cs4350_dac_init
++ */
++static int snd_ubi32_cs4350_dac_init(struct i2c_client *client, const struct i2c_device_id *id)
++{
++	int ret;
++	char send[2];
++	char recv[8];
++
++	/*
++	 * Initialize the CS4350 DAC over the I2C interface
++	 */
++	snd_printk(KERN_INFO "Initializing CS4350 DAC\n");
++
++	/*
++	 * Register 0x01: device/revid
++	 */
++	send[0] = 0x01;
++	ret = i2c_master_send(client, send, 1);
++	if (ret != 1) {
++		snd_printk(KERN_ERR "Failed 1st attempt to write to CS4350 register 0x01\n");
++		goto fail;
++	}
++	ret = i2c_master_recv(client, recv, 1);
++	if (ret != 1) {
++		snd_printk(KERN_ERR "Failed initial read of CS4350 registers\n");
++		goto fail;
++	}
++	snd_printk(KERN_INFO "CS4350 DAC Device/Rev: %08x\n", recv[0]);
++
++	/*
++	 * Register 0x02: Mode control
++	 *	I2S DIF[2:0] = 001, no De-Emphasis, Auto speed mode
++	 */
++	send[0] = 0x02;
++	send[1] = 0x10;
++	ret = i2c_master_send(client, send, 2);
++	if (ret != 2) {
++		snd_printk(KERN_ERR "Failed to set CS4350 to I2S mode\n");
++		goto fail;
++	}
++
++	/*
++	 * Register 0x05/0x06: Volume control
++	 *	Channel A volume set to -16 dB
++	 *	Channel B volume set to -16 dB
++	 */
++	send[0] = 0x05;
++	send[1] = 0x00;
++	ret = i2c_master_send(client, send, 2);
++	if (ret != 2) {
++		snd_printk(KERN_ERR "Failed to set channel A volume on CS4350\n");
++		goto fail;
++	}
++
++	send[0] = 0x06;
++	send[1] = 0x00;
++	ret = i2c_master_send(client, send, 2);
++	if (ret != 2) {
++		snd_printk(KERN_ERR "Failed to set channel A volume on CS4350\n");
++		goto fail;
++	}
++
++	/*
++	 * Make sure the changes took place, this helps verify we are talking to
++	 * the correct chip.
++	 */
++	send[0] = 0x81;
++	ret = i2c_master_send(client, send, 1);
++	if (ret != 1) {
++		snd_printk(KERN_ERR "Failed to initiate readback\n");
++		goto fail;
++	}
++
++	ret = i2c_master_recv(client, recv, 8);
++	if (ret != 8) {
++		snd_printk(KERN_ERR "Failed second read of CS4350 registers\n");
++		goto fail;
++	}
++
++	if ((recv[1] != 0x10) || (recv[4] != 0x00) || (recv[5] != 0x00)) {
++		snd_printk(KERN_ERR "Failed to initialize CS4350 DAC\n");
++		goto fail;
++	}
++		       
++	snd_printk(KERN_INFO "CS4350 DAC Initialized\n");
++	return 0;
++
++fail:
++	return -ENODEV;
++}
++
++/*
++ * snd_ubi32_cs4350_i2c_probe
++ */
++static int snd_ubi32_cs4350_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
++{
++	struct snd_card *card;
++	struct ubi32_snd_priv *ubi32_priv;
++	int err, ret;
++	struct platform_device *pdev;
++
++	pdev = client->dev.platform_data;
++	if (!pdev) {
++		return -ENODEV;
++	}
++
++	/*
++	 * Initialize the CS4350 DAC
++	 */
++	ret = snd_ubi32_cs4350_dac_init(client, id);
++	if (ret < 0) {
++		/*
++		 * Initialization failed.  Propagate the error.
++		 */
++		return ret;
++	}
++
++	/*
++	 * Create a snd_card structure
++	 */
++	card = snd_card_new(index, "Ubi32-CS4350", THIS_MODULE, sizeof(struct ubi32_snd_priv));
++	if (card == NULL) {
++		return -ENOMEM;
++	}
++
++	card->private_free = snd_ubi32_cs4350_free; /* Not sure if correct */
++	ubi32_priv = card->private_data;
++
++	/*
++	 * CS4350 DAC has a minimum sample rate of 30khz and an
++	 * upper limit of 216khz for it's auto-detect.
++	 */
++	ubi32_priv->min_sample_rate = 30000;
++	ubi32_priv->max_sample_rate = 216000;
++
++	/*
++	 * Initialize the snd_card's private data structure
++	 */
++	ubi32_priv->card = card;
++
++	/*
++	 * Create the new PCM instance
++	 */
++	err = snd_ubi32_pcm_probe(ubi32_priv, pdev);
++	if (err < 0) {
++		snd_card_free(card);
++		return err; /* What is err?  Need to include correct file */
++	}
++
++	strcpy(card->driver, "Ubi32-CS4350");
++	strcpy(card->shortname, "Ubi32-CS4350");
++	sprintf(card->longname, "%s at sendirq=%d recvirq=%d", card->shortname, ubi32_priv->tx_irq, ubi32_priv->rx_irq);
++
++	snd_card_set_dev(card, &client->dev);
++
++	/*
++	 * Register the sound card 
++	 */
++	if ((err = snd_card_register(card)) != 0) {
++		snd_printk(KERN_INFO "snd_card_register error\n");
++	}
++
++	/* 
++	 * Store card for access from other methods 
++	 */
++	i2c_set_clientdata(client, card);
++
++	return 0;
++}
++
++/*
++ * snd_ubi32_cs4350_i2c_remove
++ */
++static int __devexit snd_ubi32_cs4350_i2c_remove(struct i2c_client *client)
++{
++	struct snd_card *card;
++	struct ubi32_snd_priv *ubi32_priv;
++
++	card = i2c_get_clientdata(client);
++
++	ubi32_priv = card->private_data;
++	snd_ubi32_pcm_remove(ubi32_priv);
++
++	snd_card_free(i2c_get_clientdata(client));
++	i2c_set_clientdata(client, NULL);
++
++	return 0;
++}
++
++/*
++ * I2C driver description
++ */
++static struct i2c_driver snd_ubi32_cs4350_driver = {
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++	},
++	.id_table	= snd_ubi32_cs4350_id,
++	.probe		= snd_ubi32_cs4350_i2c_probe,
++	.remove		= __devexit_p(snd_ubi32_cs4350_i2c_remove),
++};
++
++/*
++ * Driver init
++ */
++static int __init snd_ubi32_cs4350_init(void)
++{
++	return i2c_add_driver(&snd_ubi32_cs4350_driver);
++}
++module_init(snd_ubi32_cs4350_init);
++
++/*
++ * snd_ubi32_cs4350_exit
++ */
++static void __exit snd_ubi32_cs4350_exit(void)
++{
++	i2c_del_driver(&snd_ubi32_cs4350_driver);
++}
++module_exit(snd_ubi32_cs4350_exit);
++
++/*
++ * Module properties
++ */
++MODULE_ALIAS("i2c:" DRIVER_NAME);
++MODULE_AUTHOR("Patrick Tjin");
++MODULE_DESCRIPTION("Driver for Ubicom32 audio devices CS4350");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/ubicom32/ubi32-cs4384.c
+@@ -0,0 +1,982 @@
++/*
++ * sound/ubicom32/ubi32-cs4384.c
++ *	Interface to ubicom32 virtual audio peripheral - using CS4384 DAC
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/i2c.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/delay.h>
++#include <sound/core.h>
++#include <sound/tlv.h>
++#include <sound/control.h>
++#include <sound/pcm.h>
++#include <sound/initval.h>
++#include <asm/ip5000.h>
++#include <asm/gpio.h>
++#include <asm/audio_tio.h>
++#include <asm/ubi32-cs4384.h>
++#include "ubi32.h"
++
++#define DRIVER_NAME "snd-ubi32-cs4384"
++
++/*
++ * Module properties
++ */
++static const struct i2c_device_id snd_ubi32_cs4384_id[] = {
++	{"cs4384", 0 },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, ubicom32audio_id);
++
++static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
++
++/*
++ * Mixer properties
++ */
++enum {
++	/*
++	 * Be careful of changing the order of these IDs, they
++	 * are used to index the volume array.
++	 */
++	SND_UBI32_CS4384_FRONT_ID,
++	SND_UBI32_CS4384_SURROUND_ID,
++	SND_UBI32_CS4384_CENTER_ID,
++	SND_UBI32_CS4384_LFE_ID,
++	SND_UBI32_CS4384_REAR_ID,
++
++	/*
++	 * This should be the last ID
++	 */
++	SND_UBI32_CS4384_LAST_ID,
++};
++static const u8_t snd_ubi32_cs4384_ch_ofs[] = {0, 2, 4, 5, 6};
++
++static const DECLARE_TLV_DB_SCALE(snd_ubi32_cs4384_db, -12750, 50, 0);
++
++#define snd_ubi32_cs4384_info_mute 	snd_ctl_boolean_stereo_info
++#define snd_ubi32_cs4384_info_mute_mono	snd_ctl_boolean_mono_info
++
++/*
++ * Mixer controls
++ */
++static int snd_ubi32_cs4384_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo);
++static int snd_ubi32_cs4384_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
++static int snd_ubi32_cs4384_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
++static int snd_ubi32_cs4384_get_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
++static int snd_ubi32_cs4384_put_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
++
++/*
++ * Make sure to update these if the structure below is changed
++ */
++#define SND_UBI32_MUTE_CTL_START	5
++#define SND_UBI32_MUTE_CTL_END		9
++static struct snd_kcontrol_new snd_ubi32_cs4384_controls[] __devinitdata = {
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "Front Playback Volume",
++		.info = snd_ubi32_cs4384_info_volume,
++		.get = snd_ubi32_cs4384_get_volume,
++		.put = snd_ubi32_cs4384_put_volume,
++		.private_value = SND_UBI32_CS4384_FRONT_ID,
++		.tlv = {
++			.p = snd_ubi32_cs4384_db,
++		},
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "Surround Playback Volume",
++		.info = snd_ubi32_cs4384_info_volume,
++		.get = snd_ubi32_cs4384_get_volume,
++		.put = snd_ubi32_cs4384_put_volume,
++		.private_value = SND_UBI32_CS4384_SURROUND_ID,
++		.tlv = {
++			.p = snd_ubi32_cs4384_db,
++		},
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "Center Playback Volume",
++		.info = snd_ubi32_cs4384_info_volume,
++		.get = snd_ubi32_cs4384_get_volume,
++		.put = snd_ubi32_cs4384_put_volume,
++		.private_value = SND_UBI32_CS4384_CENTER_ID,
++		.tlv = {
++			.p = snd_ubi32_cs4384_db,
++		},
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "LFE Playback Volume",
++		.info = snd_ubi32_cs4384_info_volume,
++		.get = snd_ubi32_cs4384_get_volume,
++		.put = snd_ubi32_cs4384_put_volume,
++		.private_value = SND_UBI32_CS4384_LFE_ID,
++		.tlv = {
++			.p = snd_ubi32_cs4384_db,
++		},
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "Rear Playback Volume",
++		.info = snd_ubi32_cs4384_info_volume,
++		.get = snd_ubi32_cs4384_get_volume,
++		.put = snd_ubi32_cs4384_put_volume,
++		.private_value = SND_UBI32_CS4384_REAR_ID,
++		.tlv = {
++			.p = snd_ubi32_cs4384_db,
++		},
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "Front Playback Switch",
++		.info = snd_ubi32_cs4384_info_mute,
++		.get = snd_ubi32_cs4384_get_mute,
++		.put = snd_ubi32_cs4384_put_mute,
++		.private_value = SND_UBI32_CS4384_FRONT_ID,
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "Surround Playback Switch",
++		.info = snd_ubi32_cs4384_info_mute,
++		.get = snd_ubi32_cs4384_get_mute,
++		.put = snd_ubi32_cs4384_put_mute,
++		.private_value = SND_UBI32_CS4384_SURROUND_ID,
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "Center Playback Switch",
++		.info = snd_ubi32_cs4384_info_mute_mono,
++		.get = snd_ubi32_cs4384_get_mute,
++		.put = snd_ubi32_cs4384_put_mute,
++		.private_value = SND_UBI32_CS4384_CENTER_ID,
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "LFE Playback Switch",
++		.info = snd_ubi32_cs4384_info_mute_mono,
++		.get = snd_ubi32_cs4384_get_mute,
++		.put = snd_ubi32_cs4384_put_mute,
++		.private_value = SND_UBI32_CS4384_LFE_ID,
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++		.name = "Rear Playback Switch",
++		.info = snd_ubi32_cs4384_info_mute,
++		.get = snd_ubi32_cs4384_get_mute,
++		.put = snd_ubi32_cs4384_put_mute,
++		.private_value = SND_UBI32_CS4384_REAR_ID,
++	},
++};
++
++/*
++ * Our private data
++ */
++struct snd_ubi32_cs4384_priv {
++	/*
++	 * Array of current volumes
++	 *	(L, R, SL, SR, C, LFE, RL, RR)
++	 */
++	uint8_t	volume[8];
++
++	/*
++	 * Bitmask of mutes
++	 *	MSB (RR, RL, LFE, C, SR, SL, R, L) LSB
++	 */
++	uint8_t mute;
++
++	/*
++	 * Array of controls
++	 */
++	struct snd_kcontrol *kctls[ARRAY_SIZE(snd_ubi32_cs4384_controls)];
++
++	/*
++	 * Lock to protect our card
++	 */
++	spinlock_t lock;
++};
++
++/*
++ * snd_ubi32_cs4384_info_volume
++ */
++static int snd_ubi32_cs4384_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
++{
++	unsigned int id = (unsigned int)kcontrol->private_value;
++
++	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
++	uinfo->count = 1;
++	if ((id != SND_UBI32_CS4384_LFE_ID) && 
++	    (id != SND_UBI32_CS4384_CENTER_ID)) {
++		uinfo->count = 2;
++	}
++	uinfo->value.integer.min = 0;
++	uinfo->value.integer.max = 255;
++	return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_get_volume
++ */
++static int snd_ubi32_cs4384_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
++{
++	struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol);
++	struct snd_ubi32_cs4384_priv *cs4384_priv;
++	unsigned int id = (unsigned int)kcontrol->private_value;
++	int ch = snd_ubi32_cs4384_ch_ofs[id];
++	unsigned long flags;
++
++	if (id >= SND_UBI32_CS4384_LAST_ID) {
++		return -EINVAL;
++	}
++
++	cs4384_priv = snd_ubi32_priv_get_drv(priv);
++
++	spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++	ucontrol->value.integer.value[0] = cs4384_priv->volume[ch];
++	if ((id != SND_UBI32_CS4384_LFE_ID) && 
++	    (id != SND_UBI32_CS4384_CENTER_ID)) {
++		ch++;
++		ucontrol->value.integer.value[1] = cs4384_priv->volume[ch];
++	}
++
++	spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++	return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_put_volume
++ */
++static int snd_ubi32_cs4384_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
++{
++	struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol);
++	struct i2c_client *client = (struct i2c_client *)priv->client;
++	struct snd_ubi32_cs4384_priv *cs4384_priv;
++	unsigned int id = (unsigned int)kcontrol->private_value;
++	int ch = snd_ubi32_cs4384_ch_ofs[id];
++	unsigned long flags;
++	unsigned char send[3];
++	int nch;
++	int ret = -EINVAL;
++
++	if (id >= SND_UBI32_CS4384_LAST_ID) {
++		return -EINVAL;
++	}
++
++	cs4384_priv = snd_ubi32_priv_get_drv(priv);
++
++	spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++	send[0] = 0;
++	switch (id) {
++	case SND_UBI32_CS4384_REAR_ID:
++		send[0] = 0x06;
++
++		/*
++		 * Fall through
++		 */
++
++	case SND_UBI32_CS4384_SURROUND_ID:
++		send[0] += 0x03;
++
++		/*
++		 * Fall through
++		 */
++
++	case SND_UBI32_CS4384_FRONT_ID:
++		send[0] += 0x8B;
++		nch = 2;
++		send[1] = 255 - (ucontrol->value.integer.value[0] & 0xFF);
++		send[2] = 255 - (ucontrol->value.integer.value[1] & 0xFF);
++		cs4384_priv->volume[ch++] = send[1];
++		cs4384_priv->volume[ch] = send[2];
++		break;
++
++	case SND_UBI32_CS4384_LFE_ID:
++		send[0] = 0x81;
++
++		/*
++		 * Fall through
++		 */
++
++	case SND_UBI32_CS4384_CENTER_ID:
++		send[0] += 0x11;
++		nch = 1;
++		send[1] = 255 - (ucontrol->value.integer.value[0] & 0xFF);
++		cs4384_priv->volume[ch] = send[1];
++		break;
++
++	default:
++		spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++		goto done;
++
++	}
++
++	/*
++	 * Send the volume to the chip
++	 */
++	nch++;
++	ret = i2c_master_send(client, send, nch);
++	if (ret != nch) {
++		snd_printk(KERN_ERR "Failed to set volume on CS4384\n");
++	}
++
++done:
++	spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++	return ret;
++}
++
++/*
++ * snd_ubi32_cs4384_get_mute
++ */
++static int snd_ubi32_cs4384_get_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
++{
++	struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol);
++	struct snd_ubi32_cs4384_priv *cs4384_priv;
++	unsigned int id = (unsigned int)kcontrol->private_value;
++	int ch = snd_ubi32_cs4384_ch_ofs[id];
++	unsigned long flags;
++
++	if (id >= SND_UBI32_CS4384_LAST_ID) {
++		return -EINVAL;
++	}
++
++	cs4384_priv = snd_ubi32_priv_get_drv(priv);
++
++	spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++	ucontrol->value.integer.value[0] = !(cs4384_priv->mute & (1 << ch));
++
++	if ((id != SND_UBI32_CS4384_LFE_ID) && 
++	    (id != SND_UBI32_CS4384_CENTER_ID)) {
++		ch++;
++		ucontrol->value.integer.value[1] = !(cs4384_priv->mute & (1 << ch));
++	}
++
++	spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++	return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_put_mute
++ */
++static int snd_ubi32_cs4384_put_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
++{
++	struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol);
++	struct i2c_client *client = (struct i2c_client *)priv->client;
++	struct snd_ubi32_cs4384_priv *cs4384_priv;
++	unsigned int id = (unsigned int)kcontrol->private_value;
++	int ch = snd_ubi32_cs4384_ch_ofs[id];
++	unsigned long flags;
++	unsigned char send[2];
++	int ret = -EINVAL;
++
++	if (id >= SND_UBI32_CS4384_LAST_ID) {
++		return -EINVAL;
++	}
++
++	cs4384_priv = snd_ubi32_priv_get_drv(priv);
++
++	spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++	if (ucontrol->value.integer.value[0]) {
++		cs4384_priv->mute &= ~(1 << ch);
++	} else {
++		cs4384_priv->mute |= (1 << ch);
++	}
++
++	if ((id != SND_UBI32_CS4384_LFE_ID) && (id != SND_UBI32_CS4384_CENTER_ID)) {
++		ch++;
++		if (ucontrol->value.integer.value[1]) {
++			cs4384_priv->mute &= ~(1 << ch);
++		} else {
++			cs4384_priv->mute |= (1 << ch);
++		}
++	}
++
++	/*
++	 * Update the chip's mute reigster
++	 */
++	send[0] = 0x09;
++	send[1] = cs4384_priv->mute;
++	ret = i2c_master_send(client, send, 2);
++	if (ret != 2) {
++		snd_printk(KERN_ERR "Failed to set mute on CS4384\n");
++	}
++
++	spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++	return ret;
++}
++
++/*
++ * snd_ubi32_cs4384_mixer
++ *	Setup the mixer controls
++ */
++static int __devinit snd_ubi32_cs4384_mixer(struct ubi32_snd_priv *priv)
++{
++	struct snd_card *card = priv->card;
++	struct snd_ubi32_cs4384_priv *cs4384_priv;
++	int i;
++	
++	cs4384_priv = snd_ubi32_priv_get_drv(priv);
++	for (i = 0; i < ARRAY_SIZE(snd_ubi32_cs4384_controls); i++) {
++		int err;
++
++		cs4384_priv->kctls[i] = snd_ctl_new1(&snd_ubi32_cs4384_controls[i], priv);
++		err = snd_ctl_add(card, cs4384_priv->kctls[i]);
++		if (err) {
++			snd_printk(KERN_WARNING "Failed to add control %d\n", i);
++			return err;
++		}
++	}
++	return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_free
++ *	Card private data free function
++ */
++void snd_ubi32_cs4384_free(struct snd_card *card)
++{
++	struct snd_ubi32_cs4384_priv *cs4384_priv;
++	struct ubi32_snd_priv *ubi32_priv;
++	
++	ubi32_priv = card->private_data;
++	cs4384_priv = snd_ubi32_priv_get_drv(ubi32_priv);
++	if (cs4384_priv) {
++		kfree(cs4384_priv);
++	}
++}
++
++/*
++ * snd_ubi32_cs4384_setup_mclk
++ */
++static int snd_ubi32_cs4384_setup_mclk(struct ubi32_cs4384_platform_data *pdata)
++{
++	struct ubicom32_io_port *ioa = (struct ubicom32_io_port *)RA;
++	struct ubicom32_io_port *ioc = (struct ubicom32_io_port *)RC;
++	struct ubicom32_io_port *ioh = (struct ubicom32_io_port *)RH;
++	unsigned int ctl0;
++	unsigned int ctlx;
++	unsigned int div;
++
++	div = pdata->mclk_entries[0].div;
++
++	ctl0 = (1 << 13);
++	ctlx = ((div - 1) << 16) | (div / 2);
++
++	switch (pdata->mclk_src) {
++	case UBI32_CS4384_MCLK_PWM_0:
++		ioc->function |= 2;
++		ioc->ctl0 |= ctl0;
++		ioc->ctl1 = ctlx;
++		return 0;
++
++	case UBI32_CS4384_MCLK_PWM_1:
++		ioc->function |= 2;
++		ioc->ctl0 |= ctl0 << 16;
++		ioc->ctl2 = ctlx;
++		return 0;
++
++	case UBI32_CS4384_MCLK_PWM_2:
++		ioh->ctl0 |= ctl0;
++		ioh->ctl1 = ctlx;
++		return 0;
++
++	case UBI32_CS4384_MCLK_CLKDIV_1:
++		ioa->gpio_mask &= (1 << 7);
++		ioa->ctl1 &= ~(0x7F << 14);
++		ioa->ctl1 |= ((div - 1) << 14);
++		return 0;
++
++	case UBI32_CS4384_MCLK_OTHER:
++		return 0;
++	}
++
++	return 1;
++}
++
++/*
++ * snd_ubi32_cs4384_set_rate
++ */
++static int snd_ubi32_cs4384_set_rate(struct ubi32_snd_priv *priv, int rate)
++{
++	struct ubi32_cs4384_platform_data *cpd = priv->pdata->priv_data;
++	struct ubicom32_io_port *ioa = (struct ubicom32_io_port *)RA;
++	struct ubicom32_io_port *ioc = (struct ubicom32_io_port *)RC;
++	struct ubicom32_io_port *ioh = (struct ubicom32_io_port *)RH;
++	unsigned int ctl;
++	unsigned int div = 0;
++	const u16_t mult[] = {64, 96, 128, 192, 256, 384, 512, 768, 1024};
++	int i;
++	int j;
++	
++
++	for (i = 0; i < sizeof(mult) / sizeof(u16_t); i++) {
++		for (j = 0; j < cpd->n_mclk; j++) {
++			if (((unsigned int)rate * (unsigned int)mult[i]) == 
++			     cpd->mclk_entries[j].rate) {
++				div = cpd->mclk_entries[j].div;
++				break;
++			}
++		}
++	}
++
++	ctl = ((div - 1) << 16) | (div / 2);
++
++	switch (cpd->mclk_src) {
++	case UBI32_CS4384_MCLK_PWM_0:
++		ioc->ctl1 = ctl;
++		return 0;
++
++	case UBI32_CS4384_MCLK_PWM_1:
++		ioc->ctl2 = ctl;
++		return 0;
++
++	case UBI32_CS4384_MCLK_PWM_2:
++		ioh->ctl1 = ctl;
++		return 0;
++
++	case UBI32_CS4384_MCLK_CLKDIV_1:
++		ioa->ctl1 &= ~(0x7F << 14);
++		ioa->ctl1 |= ((div - 1) << 14);
++		return 0;
++
++	case UBI32_CS4384_MCLK_OTHER:
++		return 0;
++	}
++
++	return 1;
++}
++
++/*
++ * snd_ubi32_cs4384_set_channels
++ *	Mute unused channels
++ */
++static int snd_ubi32_cs4384_set_channels(struct ubi32_snd_priv *priv, int channels)
++{
++	struct i2c_client *client = (struct i2c_client *)priv->client;
++	struct snd_ubi32_cs4384_priv *cs4384_priv;
++	unsigned char send[2];
++	int ret;
++	int i;
++	unsigned long flags;
++
++	/*
++	 * Only support 0, 2, 4, 6, 8 channels
++	 */
++	if ((channels > 8) || (channels & 1)) {
++		return -EINVAL;
++	}
++
++	cs4384_priv = snd_ubi32_priv_get_drv(priv);
++	spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++	/*
++	 * Address 09h, Mute control
++	 */
++	send[0] = 0x09;
++	send[1] = (unsigned char)(0xFF << channels);
++
++	ret = i2c_master_send(client, send, 2);
++
++	spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++	/*
++	 * Notify the system that we changed the mutes
++	 */
++	cs4384_priv->mute = (unsigned char)(0xFF << channels);
++
++	for (i = SND_UBI32_MUTE_CTL_START; i < SND_UBI32_MUTE_CTL_END; i++) {
++		snd_ctl_notify(priv->card, SNDRV_CTL_EVENT_MASK_VALUE,
++			       &cs4384_priv->kctls[i]->id);
++	}
++
++	if (ret != 2) {
++		return -ENXIO;
++	}
++
++	return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_dac_init
++ */
++static int snd_ubi32_cs4384_dac_init(struct i2c_client *client, const struct i2c_device_id *id)
++{
++	int ret;
++	unsigned char send[2];
++	unsigned char recv[2];
++
++	/*
++	 * Initialize the CS4384 DAC over the I2C interface
++	 */
++	snd_printk(KERN_INFO "Initializing CS4384 DAC\n");
++
++	/*
++	 * Register 0x01: device/revid
++	 */
++	send[0] = 0x01;
++	ret = i2c_master_send(client, send, 1);
++	if (ret != 1) {
++		snd_printk(KERN_ERR "Failed 1st attempt to write to CS4384 register 0x01\n");
++		goto fail;
++	}
++	ret = i2c_master_recv(client, recv, 1);
++	if (ret != 1) {
++		snd_printk(KERN_ERR "Failed initial read of CS4384 registers\n");
++		goto fail;
++	}
++	snd_printk(KERN_INFO "CS4384 DAC Device/Rev: %08x\n", recv[0]);
++
++	/*
++	 * Register 0x02: Mode Control 1
++	 *	Control Port Enable, PCM, All DACs enabled, Power Down
++	 */
++	send[0] = 0x02;
++	send[1] = 0x81;
++	ret = i2c_master_send(client, send, 2);
++	if (ret != 2) {
++		snd_printk(KERN_ERR "Failed to set CPEN CS4384\n");
++		goto fail;
++	}
++
++	/*
++	 * Register 0x08: Ramp and Mute
++	 *	RMP_UP, RMP_DN, PAMUTE, DAMUTE
++	 */
++	send[0] = 0x08;
++	send[1] = 0xBC;
++	ret = i2c_master_send(client, send, 2);
++	if (ret != 2) {
++		snd_printk(KERN_ERR "Failed to set CPEN CS4384\n");
++		goto fail;
++	}
++
++	/*
++	 * Register 0x03: PCM Control
++	 *	I2S DIF[3:0] = 0001, no De-Emphasis, Auto speed mode
++	 */
++	send[0] = 0x03;
++	send[1] = 0x13;
++	ret = i2c_master_send(client, send, 2);
++	if (ret != 2) {
++		snd_printk(KERN_ERR "Failed to set CS4384 to I2S mode\n");
++		goto fail;
++	}
++
++	/*
++	 * Register 0x0B/0x0C: Volume control A1/B1
++	 * Register 0x0E/0x0F: Volume control A2/B2
++	 * Register 0x11/0x12: Volume control A3/B3
++	 * Register 0x14/0x15: Volume control A4/B4
++	 */
++	send[0] = 0x80 | 0x0B;
++	send[1] = 0x00;
++	send[2] = 0x00;
++	ret = i2c_master_send(client, send, 3);
++	if (ret != 3) {
++		snd_printk(KERN_ERR "Failed to set ch1 volume on CS4384\n");
++		goto fail;
++	}
++
++	send[0] = 0x80 | 0x0E;
++	send[1] = 0x00;
++	send[2] = 0x00;
++	ret = i2c_master_send(client, send, 3);
++	if (ret != 3) {
++		snd_printk(KERN_ERR "Failed to set ch2 volume on CS4384\n");
++		goto fail;
++	}
++
++	send[0] = 0x80 | 0x11;
++	send[1] = 0x00;
++	send[2] = 0x00;
++	ret = i2c_master_send(client, send, 3);
++	if (ret != 3) {
++		snd_printk(KERN_ERR "Failed to set ch3 volume on CS4384\n");
++		goto fail;
++	}
++
++	send[0] = 0x80 | 0x14;
++	send[1] = 0x00;
++	send[2] = 0x00;
++	ret = i2c_master_send(client, send, 3);
++	if (ret != 3) {
++		snd_printk(KERN_ERR "Failed to set ch4 volume on CS4384\n");
++		goto fail;
++	}
++
++	/*
++	 * Register 09h: Mute control
++	 *	Mute all (we will unmute channels as needed)
++	 */
++	send[0] = 0x09;
++	send[1] = 0xFF;
++	ret = i2c_master_send(client, send, 2);
++	if (ret != 2) {
++		snd_printk(KERN_ERR "Failed to power up CS4384\n");
++		goto fail;
++	}
++
++	/*
++	 * Register 0x02: Mode Control 1
++	 *	Control Port Enable, PCM, All DACs enabled, Power Up
++	 */
++	send[0] = 0x02;
++	send[1] = 0x80;
++	ret = i2c_master_send(client, send, 2);
++	if (ret != 2) {
++		snd_printk(KERN_ERR "Failed to power up CS4384\n");
++		goto fail;
++	}
++
++	/*
++	 * Make sure the changes took place, this helps verify we are talking to
++	 * the correct chip.
++	 */
++	send[0] = 0x80 | 0x03;
++	ret = i2c_master_send(client, send, 1);
++	if (ret != 1) {
++		snd_printk(KERN_ERR "Failed to initiate readback\n");
++		goto fail;
++	}
++
++	ret = i2c_master_recv(client, recv, 1);
++	if (ret != 1) {
++		snd_printk(KERN_ERR "Failed second read of CS4384 registers\n");
++		goto fail;
++	}
++
++	if (recv[0] != 0x13) {
++		snd_printk(KERN_ERR "Failed to initialize CS4384 DAC\n");
++		goto fail;
++	}
++		       
++	snd_printk(KERN_INFO "CS4384 DAC Initialized\n");
++	return 0;
++
++fail:
++	return -ENODEV;
++}
++
++/*
++ * snd_ubi32_cs4384_i2c_probe
++ */
++static int snd_ubi32_cs4384_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
++{
++	struct snd_card *card;
++	struct ubi32_snd_priv *ubi32_priv;
++	int err, ret;
++	struct platform_device *pdev;
++	struct ubi32_cs4384_platform_data *pdata;
++	struct snd_ubi32_cs4384_priv *cs4384_priv;
++
++	/*
++	 * pdev is audio_tio
++	 */
++	pdev = client->dev.platform_data;
++	if (!pdev) {
++		return -ENODEV;
++	}
++
++	/*
++	 * pdev->dev.platform_data is ubi32-pcm platform_data
++	 */
++	pdata = audio_tio_priv(pdev);
++	if (!pdata) {
++		return -ENODEV;
++	}
++
++	/*
++	 * Initialize the CS4384 DAC
++	 */
++	ret = snd_ubi32_cs4384_dac_init(client, id);
++	if (ret < 0) {
++		/*
++		 * Initialization failed.  Propagate the error.
++		 */
++		return ret;
++	}
++
++	if (snd_ubi32_cs4384_setup_mclk(pdata)) {
++		return -EINVAL;
++	}
++
++	/*
++	 * Create a snd_card structure
++	 */
++	card = snd_card_new(index, "Ubi32-CS4384", THIS_MODULE, sizeof(struct ubi32_snd_priv));
++	if (card == NULL) {
++		return -ENOMEM;
++	}
++
++	card->private_free = snd_ubi32_cs4384_free;
++	ubi32_priv = card->private_data;
++
++	/*
++	 * Initialize the snd_card's private data structure
++	 */
++	ubi32_priv->card = card;
++	ubi32_priv->client = client;
++	ubi32_priv->set_channels = snd_ubi32_cs4384_set_channels;
++	ubi32_priv->set_rate = snd_ubi32_cs4384_set_rate;
++
++	/*
++	 * CS4384 DAC has a minimum sample rate of 4khz and an
++	 * upper limit of 216khz for it's auto-detect.
++	 */
++	ubi32_priv->min_sample_rate = 4000;
++	ubi32_priv->max_sample_rate = 216000;
++
++	/*
++	 * Create our private data (to manage volume, etc)
++	 */
++	cs4384_priv = kzalloc(sizeof(struct snd_ubi32_cs4384_priv), GFP_KERNEL);
++	if (!cs4384_priv) {
++		snd_card_free(card);
++		return -ENOMEM;
++	}
++	snd_ubi32_priv_set_drv(ubi32_priv, cs4384_priv);
++	spin_lock_init(&cs4384_priv->lock);
++
++	/*
++	 * We start off all muted and max volume
++	 */
++	cs4384_priv->mute = 0xFF;
++	memset(cs4384_priv->volume, 0xFF, 8);
++
++	/*
++	 * Create the new PCM instance
++	 */
++	err = snd_ubi32_pcm_probe(ubi32_priv, pdev);
++	if (err < 0) {
++		snd_card_free(card);
++		return err; /* What is err?  Need to include correct file */
++	}
++
++	strcpy(card->driver, "Ubi32-CS4384");
++	strcpy(card->shortname, "Ubi32-CS4384");
++	sprintf(card->longname, "%s at sendirq=%d recvirq=%d", card->shortname, ubi32_priv->tx_irq, ubi32_priv->rx_irq);
++
++	snd_card_set_dev(card, &client->dev);
++
++	/*
++	 * Set up the mixer
++	 */
++	snd_ubi32_cs4384_mixer(ubi32_priv);
++
++	/*
++	 * Register the sound card 
++	 */
++	if ((err = snd_card_register(card)) != 0) {
++		snd_printk(KERN_INFO "snd_card_register error\n");
++	}
++
++	/* 
++	 * Store card for access from other methods 
++	 */
++	i2c_set_clientdata(client, card);
++
++	return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_i2c_remove
++ */
++static int __devexit snd_ubi32_cs4384_i2c_remove(struct i2c_client *client)
++{
++	struct snd_card *card;
++	struct ubi32_snd_priv *ubi32_priv;
++
++	card = i2c_get_clientdata(client);
++
++	ubi32_priv = card->private_data;
++	snd_ubi32_pcm_remove(ubi32_priv);
++
++	snd_card_free(i2c_get_clientdata(client));
++	i2c_set_clientdata(client, NULL);
++
++	return 0;
++}
++
++/*
++ * I2C driver description
++ */
++static struct i2c_driver snd_ubi32_cs4384_driver = {
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++	},
++	.id_table	= snd_ubi32_cs4384_id,
++	.probe		= snd_ubi32_cs4384_i2c_probe,
++	.remove		= __devexit_p(snd_ubi32_cs4384_i2c_remove),
++};
++
++/*
++ * Driver init
++ */
++static int __init snd_ubi32_cs4384_init(void)
++{
++	return i2c_add_driver(&snd_ubi32_cs4384_driver);
++}
++module_init(snd_ubi32_cs4384_init);
++
++/*
++ * snd_ubi32_cs4384_exit
++ */
++static void __exit snd_ubi32_cs4384_exit(void)
++{
++	i2c_del_driver(&snd_ubi32_cs4384_driver);
++}
++module_exit(snd_ubi32_cs4384_exit);
++
++/*
++ * Module properties
++ */
++MODULE_ALIAS("i2c:" DRIVER_NAME);
++MODULE_AUTHOR("Patrick Tjin");
++MODULE_DESCRIPTION("Driver for Ubicom32 audio devices CS4384");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/ubicom32/ubi32-generic.c
+@@ -0,0 +1,165 @@
++/*
++ * sound/ubicom32/ubi32-generic.c
++ *	Interface to ubicom32 virtual audio peripheral
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/platform_device.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/initval.h>
++#include "ubi32.h"
++
++#define DRIVER_NAME "snd-ubi32-generic"
++
++/*
++ * Module properties
++ */
++static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
++
++/*
++ * Card private data free function
++ */
++void snd_ubi32_generic_free(struct snd_card *card)
++{
++	//struct ubi32_snd_priv *ubi32_priv = card->private_data;
++
++	/*
++	 * Free all the fields in the snd_ubi32_priv struct
++	 */
++	// Nothing to free at this time because ubi32_priv just maintains pointers
++}
++
++/*
++ * Ubicom audio driver probe() method.  Args change depending on whether we use
++ * platform_device or i2c_device.
++ */
++static int snd_ubi32_generic_probe(struct platform_device *dev)
++{
++	struct snd_card *card;
++	struct ubi32_snd_priv *ubi32_priv;
++	int err;
++
++	/*
++	 * Create a snd_card structure
++	 */
++	card = snd_card_new(index, "Ubi32-Generic", THIS_MODULE, sizeof(struct ubi32_snd_priv));
++
++	if (card == NULL) {
++		return -ENOMEM;
++	}
++
++	card->private_free = snd_ubi32_generic_free; /* Not sure if correct */
++	ubi32_priv = card->private_data;
++
++	/*
++	 * Initialize the snd_card's private data structure
++	 */
++	ubi32_priv->card = card;
++
++	/*
++	 * Create the new PCM instance
++	 */
++	err = snd_ubi32_pcm_probe(ubi32_priv, dev);
++	if (err < 0) {
++		snd_card_free(card);
++		return err;
++	}
++
++	strcpy(card->driver, "Ubi32-Generic");
++	strcpy(card->shortname, "Ubi32-Generic");
++	sprintf(card->longname, "%s at sendirq=%d recvirq=%d", card->shortname, ubi32_priv->tx_irq, ubi32_priv->rx_irq);
++
++	snd_card_set_dev(card, &dev->dev);
++
++	/* Register the sound card */
++	if ((err = snd_card_register(card)) != 0) {
++		snd_printk(KERN_INFO "snd_card_register error\n");
++	}
++
++	/* Store card for access from other methods */
++	platform_set_drvdata(dev, card);
++
++	return 0;
++}
++
++/*
++ * Ubicom audio driver remove() method
++ */
++static int __devexit snd_ubi32_generic_remove(struct platform_device *dev)
++{
++	struct snd_card *card;
++	struct ubi32_snd_priv *ubi32_priv;
++
++	card = platform_get_drvdata(dev);
++	ubi32_priv = card->private_data;
++	snd_ubi32_pcm_remove(ubi32_priv);
++
++	snd_card_free(platform_get_drvdata(dev));
++	platform_set_drvdata(dev, NULL);
++	return 0;
++}
++
++/*
++ * Platform driver definition
++ */
++static struct platform_driver snd_ubi32_generic_driver = {
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++	},
++	.probe = snd_ubi32_generic_probe,
++	.remove = __devexit_p(snd_ubi32_generic_remove),
++};
++
++/*
++ * snd_ubi32_generic_init
++ */
++static int __init snd_ubi32_generic_init(void)
++{
++	return platform_driver_register(&snd_ubi32_generic_driver);
++}
++module_init(snd_ubi32_generic_init);
++
++/*
++ * snd_ubi32_generic_exit
++ */
++static void __exit snd_ubi32_generic_exit(void)
++{
++	platform_driver_unregister(&snd_ubi32_generic_driver);
++}
++module_exit(snd_ubi32_generic_exit);
++
++/*
++ * Module properties
++ */
++//#if defined(CONFIG_SND_UBI32_AUDIO_I2C)
++//MODULE_ALIAS("i2c:snd-ubi32");
++//#endif
++MODULE_AUTHOR("Aaron Jow, Patrick Tjin");
++MODULE_DESCRIPTION("Driver for Ubicom32 audio devices");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/ubicom32/ubi32.h
+@@ -0,0 +1,96 @@
++/*
++ * sound/ubicom32/ubi32.h
++ *	Common header file for all ubi32- sound drivers
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef _UBI32_H
++#define _UBI32_H
++
++#define SND_UBI32_DEBUG 0 // Debug flag
++
++#include <linux/platform_device.h>
++#include <asm/devtree.h>
++#include <asm/audio_tio.h>
++#include <asm/ubi32-pcm.h>
++
++struct ubi32_snd_priv;
++
++typedef int (*set_channels_t)(struct ubi32_snd_priv *priv, int channels);
++typedef int (*set_rate_t)(struct ubi32_snd_priv *priv, int rate);
++
++struct ubi32_snd_priv {
++	/*
++	 * Any variables that are needed locally here but NOT in
++	 * the VP itself should go in here.
++	 */
++	struct snd_card *card;
++	struct snd_pcm *pcm;
++
++	/*
++	 * DAC parameters.  These are the parameters for the specific
++	 * DAC we are driving.  The I2S component can run at a range
++	 * of frequencies, but the DAC may be limited.  We may want
++	 * to make this an array of some sort in the future?
++	 *
++	 * min/max_sample_rate if set to 0 are ignored.
++	 */
++	int max_sample_rate;
++	int min_sample_rate;
++
++	/*
++	 * The size a period (group) of audio samples.  The VP does
++	 * not need to know this; each DMA transfer is made to be
++	 * one period.
++	 */
++	u32_t period_size;
++
++	spinlock_t ubi32_lock;
++
++	struct audiotioregs *regs;
++	u8 tx_irq;
++	u8 rx_irq;
++
++	void *client;
++
++	/*
++	 * Operations which the base DAC driver can implement
++	 */
++	set_channels_t set_channels;
++	set_rate_t set_rate;
++
++	/*
++	 * platform data
++	 */
++	struct ubi32pcm_platform_data *pdata;
++
++	/*
++	 * Private driver data (used for DAC driver control, etc)
++	 */
++	void *drvdata;
++};
++
++#define snd_ubi32_priv_get_drv(priv) ((priv)->drvdata)
++#define snd_ubi32_priv_set_drv(priv, data) (((priv)->drvdata) = (void *)(data))
++
++extern int snd_ubi32_pcm_probe(struct ubi32_snd_priv *ubi32_priv, struct platform_device *pdev);
++extern void snd_ubi32_pcm_remove(struct ubi32_snd_priv *ubi32_priv);
++
++#endif
+--- /dev/null
++++ b/sound/ubicom32/ubi32-pcm.c
+@@ -0,0 +1,680 @@
++/*
++ * sound/ubicom32/ubi32-pcm.c
++ *	Interface to ubicom32 virtual audio peripheral
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port.  If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ *   arch/m68knommu
++ *   arch/blackfin
++ *   arch/parisc
++ */
++
++#include <linux/interrupt.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <asm/ip5000.h>
++#include <asm/ubi32-pcm.h>
++#include <linux/dma-mapping.h>
++#include <linux/delay.h>
++#include "ubi32.h"
++
++struct ubi32_snd_runtime_data {
++	dma_addr_t dma_buffer;		/* Physical address of DMA buffer */
++	dma_addr_t dma_buffer_end;	/* First address beyond end of DMA buffer */
++	size_t period_size;
++	dma_addr_t period_ptr;		/* Physical address of next period */
++	unsigned int flags;
++};
++
++static void snd_ubi32_vp_int_set(struct snd_pcm *pcm)
++{
++	struct ubi32_snd_priv *ubi32_priv = pcm->private_data;
++	ubicom32_set_interrupt(ubi32_priv->tx_irq);
++}
++
++static snd_pcm_uframes_t snd_ubi32_playback_pointer(struct snd_pcm_substream *substream)
++{
++	struct ubi32_snd_priv *ubi32_priv = snd_pcm_substream_chip(substream);
++	struct audiotioregs *regs = ubi32_priv->regs;
++	struct snd_pcm_runtime *runtime = substream->runtime;
++	struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++
++	dma_addr_t read_pos;
++
++	snd_pcm_uframes_t frames;
++	if (!regs->current_read_pos) {
++		/*
++		 * If current_read_pos is NULL (e.g. right after the HW is started or
++		 * when the HW is stopped), then handle this case separately.
++		 */
++		return 0;
++	}
++
++	read_pos = (dma_addr_t)regs->current_read_pos;
++	frames = bytes_to_frames(runtime, read_pos - ubi32_rd->dma_buffer);
++	if (frames == runtime->buffer_size) {
++		frames = 0;
++	}
++	return frames;
++}
++
++/*
++ * Audio trigger
++ */
++static int snd_ubi32_playback_trigger(struct snd_pcm_substream *substream, int cmd)
++{
++	struct ubi32_snd_priv *ubi32_priv = substream->pcm->private_data;
++	struct audiotioregs *regs = ubi32_priv->regs;
++	struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++	int ret = 0;
++
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "snd_ubi32_playback_trigger cmd=%d=", cmd);
++#endif
++
++	if (regs->command != UBI32_AUDIO_CMD_NONE) {
++		snd_printk(KERN_WARNING "Can't send command to audio device at this time\n");
++		// Set a timer to call this function back later.  How to do this?
++		return 0;
++	}
++
++	/*
++	 * Set interrupt flag to indicate that we interrupted audio device
++	 * to send a command
++	 */
++	//regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++
++	switch (cmd) {
++	case SNDRV_PCM_TRIGGER_START:
++
++#if SND_UBI32_DEBUG
++		snd_printk(KERN_INFO "START\n");
++#endif
++		/*
++		 * Ready the DMA transfer
++		 */
++		ubi32_rd->period_ptr = ubi32_rd->dma_buffer;
++
++#if SND_UBI32_DEBUG
++		snd_printk(KERN_INFO "trigger period_ptr=%lx\n", (unsigned long)ubi32_rd->period_ptr);
++#endif
++		regs->playback_xfer_requests[0].ptr = (void *)ubi32_rd->period_ptr;
++		regs->playback_xfer_requests[0].ctr = ubi32_rd->period_size;
++		regs->playback_xfer_requests[0].active = 1;
++
++#if SND_UBI32_DEBUG
++		snd_printk(KERN_INFO "xfer_request 0 ptr=0x%x ctr=%u\n", ubi32_rd->period_ptr, ubi32_rd->period_size);
++#endif
++
++		ubi32_rd->period_ptr += ubi32_rd->period_size;
++		regs->playback_xfer_requests[1].ptr = (void *)ubi32_rd->period_ptr;
++		regs->playback_xfer_requests[1].ctr = ubi32_rd->period_size;
++		regs->playback_xfer_requests[1].active = 1;
++
++#if SND_UBI32_DEBUG
++		snd_printk(KERN_INFO "xfer_request 1 ptr=0x%x ctr=%u\n", ubi32_rd->period_ptr, ubi32_rd->period_size);
++#endif
++
++		/*
++		 * Tell the VP that we want to begin playback by filling in the
++		 * command field and then interrupting the audio VP
++		 */
++		regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++		regs->command = UBI32_AUDIO_CMD_START;
++		snd_ubi32_vp_int_set(substream->pcm);
++		break;
++
++	case SNDRV_PCM_TRIGGER_STOP:
++
++#if SND_UBI32_DEBUG
++		snd_printk(KERN_INFO "STOP\n");
++#endif
++
++		/*
++		 * Tell the VP that we want to stop playback by filling in the
++		 * command field and then interrupting the audio VP
++		 */
++		regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++		regs->command = UBI32_AUDIO_CMD_STOP;
++		snd_ubi32_vp_int_set(substream->pcm);
++		break;
++
++	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
++
++#if SND_UBI32_DEBUG
++		snd_printk(KERN_INFO "PAUSE_PUSH\n");
++#endif
++
++		/*
++		 * Tell the VP that we want to pause playback by filling in the
++		 * command field and then interrupting the audio VP
++		 */
++		regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++		regs->command = UBI32_AUDIO_CMD_PAUSE;
++		snd_ubi32_vp_int_set(substream->pcm);
++		break;
++
++	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
++
++#if SND_UBI32_DEBUG
++		snd_printk(KERN_INFO "PAUSE_RELEASE\n");
++#endif
++		/*
++		 * Tell the VP that we want to resume paused playback by filling
++		 * in the command field and then interrupting the audio VP
++		 */
++		regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++		regs->command = UBI32_AUDIO_CMD_RESUME;
++		snd_ubi32_vp_int_set(substream->pcm);
++		break;
++
++	default:
++		snd_printk(KERN_WARNING "Unhandled trigger\n");
++		ret = -EINVAL;
++		break;
++	}
++
++	return ret;
++}
++
++/*
++ * Prepare to transfer an audio stream to the codec
++ */
++static int snd_ubi32_playback_prepare(struct snd_pcm_substream *substream)
++{
++	/*
++	 * Configure registers and setup the runtime instance for DMA transfers
++	 */
++	//struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++	struct ubi32_snd_priv *ubi32_priv = substream->pcm->private_data;
++	struct audiotioregs *regs = ubi32_priv->regs;
++
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "snd_ubi32_playback_prepare: sending STOP command to audio device\n");
++#endif
++
++	/*
++	 * Make sure the audio device is stopped
++	 */
++
++	/*
++	 * Set interrupt flag to indicate that we interrupted audio device
++	 * to send a command
++	 */
++	regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++	regs->command = UBI32_AUDIO_CMD_STOP;
++	snd_ubi32_vp_int_set(substream->pcm);
++
++	return 0;
++}
++
++/*
++ * Allocate DMA buffers from preallocated memory.
++ * Preallocation was done in snd_ubi32_pcm_new()
++ */
++static int snd_ubi32_playback_hw_params(struct snd_pcm_substream *substream,
++					struct snd_pcm_hw_params *hw_params)
++{
++	struct snd_pcm_runtime *runtime = substream->runtime;
++	struct ubi32_snd_priv *ubi32_priv = substream->pcm->private_data;
++	struct audiotioregs *regs = ubi32_priv->regs;
++	struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++
++	/*
++	 * Use pre-allocated memory from ubi32_snd_pcm_new() to satisfy
++	 * this memory request.
++	 */
++	int ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
++
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "snd_ubi32_playback_hw_params\n");
++#endif
++
++	if (!(regs->channel_mask & (1 << params_channels(hw_params)))) {
++		snd_printk(KERN_INFO "snd_ubi32_playback_hw_params unsupported number of channels %d mask %08x\n", params_channels(hw_params), regs->channel_mask);
++		return -EINVAL;
++	}
++
++	if (ubi32_priv->set_channels) {
++		int ret = ubi32_priv->set_channels(ubi32_priv, params_channels(hw_params));
++		if (ret) {
++			snd_printk(KERN_WARNING "Unable to set channels to %d, ret=%d\n", params_channels(hw_params), ret);
++			return ret;
++		}
++	}
++
++	if (ubi32_priv->set_rate) {
++		int ret = ubi32_priv->set_rate(ubi32_priv, params_rate(hw_params));
++		if (ret) {
++			snd_printk(KERN_WARNING "Unable to set rate to %d, ret=%d\n", params_rate(hw_params), ret);
++			return ret;
++		}
++	}
++
++	if (ubi32_priv->pdata->set_rate) {
++		int ret = ubi32_priv->pdata->set_rate(ubi32_priv->pdata->appdata, params_rate(hw_params));
++		if (ret) {
++			snd_printk(KERN_WARNING "Unable to set rate to %d, ret=%d\n", params_rate(hw_params), ret);
++			return ret;
++		}
++	}
++
++	if (regs->command != UBI32_AUDIO_CMD_NONE) {
++		snd_printk(KERN_WARNING "snd_ubi32_playback_hw_params: tio busy\n");
++		return -EAGAIN;
++	}
++
++	if (params_format(hw_params) == SNDRV_PCM_FORMAT_S16_LE) {
++		regs->flags |= UBI32_CMD_SETUP_FLAG_LE;
++	} else {
++		regs->flags &= ~UBI32_CMD_SETUP_FLAG_LE;
++	}
++	regs->channels = params_channels(hw_params);
++	regs->sample_rate = params_rate(hw_params);
++	regs->command = UBI32_AUDIO_CMD_SETUP;
++	regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++	snd_ubi32_vp_int_set(substream->pcm);
++
++	/*
++	 * Wait for the command to complete
++	 */
++	while (regs->command != UBI32_AUDIO_CMD_NONE) {
++		udelay(1);
++	}
++
++	//snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
++	//runtime->dma_bytes = params_buffer_bytes(hw_params);
++
++	/*
++	 * Put the DMA info into the DMA descriptor that we will
++	 * use to do transfers to our audio VP "hardware"
++	 */
++
++	/*
++	 * Mark both DMA transfers as not ready/inactive
++	 */
++	regs->playback_xfer_requests[0].active = 0;
++	regs->playback_xfer_requests[1].active = 0;
++
++	/*
++	 * Put the location of the buffer into the runtime data instance
++	 */
++	ubi32_rd->dma_buffer = (dma_addr_t)runtime->dma_area;
++	ubi32_rd->dma_buffer_end = (dma_addr_t)(runtime->dma_area + runtime->dma_bytes);
++
++	/*
++	 * Get the period size
++	 */
++	ubi32_rd->period_size = params_period_bytes(hw_params);
++
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "DMA for ubi32 audio initialized dma_area=0x%x dma_bytes=%d, period_size=%d\n", (unsigned int)runtime->dma_area, (unsigned int)runtime->dma_bytes, ubi32_rd->period_size);
++	snd_printk(KERN_INFO "Private buffer ubi32_rd: dma_buffer=0x%x dma_buffer_end=0x%x\n", ubi32_rd->dma_buffer, ubi32_rd->dma_buffer_end);
++#endif
++
++	return ret;
++}
++
++/*
++ * This is the reverse of snd_ubi32_playback_hw_params
++ */
++static int snd_ubi32_playback_hw_free(struct snd_pcm_substream *substream)
++{
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "snd_ubi32_playback_hw_free\n");
++#endif
++	return snd_pcm_lib_free_pages(substream);
++}
++
++/*
++ * Audio virtual peripheral capabilities
++ */
++static struct snd_pcm_hardware snd_ubi32_playback_hw =
++{
++	/* FILL IN THIS STRUCT WITH HW PARAMS SPECIFIC TO IPI2SOUT */
++	// This is defined in include/sound/asound.h or
++	// include/sound/pcm.h
++	.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
++		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME), // NOT SURE ABOUT THIS
++	//.info			= (SNDRV_PCM_INFO_INTERLEAVED |
++	//			   SNDRV_PCM_INFO_BLOCK_TRANSFER |
++	//			   SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
++	//			   SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
++	.buffer_bytes_max = (64*1024), // NOT SURE ABOUT THIS
++	.period_bytes_min	= 64,
++	.period_bytes_max	= 8184,//8184,//8176,
++	.periods_min = 2,
++	.periods_max = 255, // THIS WILL ALMOST CERTAINLY NEED TO BE CHANGED
++	.fifo_size = 0, // THIS IS IGNORED BY ALSA
++};
++
++/*
++ * We fill this in later
++ */
++static struct snd_pcm_hw_constraint_list ubi32_playback_rates;
++
++static int snd_ubi32_playback_close(struct snd_pcm_substream *substream)
++{
++	/* Disable codec, stop DMA, free private data structures */
++	//struct ubi32_snd_priv *ubi32_priv = snd_pcm_substream_chip(substream);
++	struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "snd_ubi32_playback_close\n");
++#endif
++
++	substream->runtime->private_data = NULL;
++
++	kfree(ubi32_rd);
++	
++	return 0;
++}
++
++static int snd_ubi32_playback_open(struct snd_pcm_substream *substream)
++{
++	//struct ubi32_snd_priv *ubi32_priv = snd_pcm_substream_chip(substream);
++	struct snd_pcm_runtime *runtime = substream->runtime;
++	struct ubi32_snd_runtime_data *ubi32_rd;
++	int ret = 0;
++
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "ubi32 playback open\n");
++#endif
++
++	/* Associate capabilities with component */
++	runtime->hw = snd_ubi32_playback_hw;
++
++	/*
++	 * Inform ALSA about constraints of the audio device
++	 */
++	ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &ubi32_playback_rates);
++	if (ret < 0) {
++		snd_printk(KERN_INFO "invalid rate\n");
++		goto out;
++	}
++
++	/* Force the buffer size to be an integer multiple of period size */
++	ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
++	if (ret < 0) {
++		snd_printk(KERN_INFO "invalid period\n");
++		goto out;
++	}
++	/* Initialize structures/registers */
++	ubi32_rd = kzalloc(sizeof(struct ubi32_snd_runtime_data), GFP_KERNEL);
++	if (ubi32_rd == NULL) {
++		ret = -ENOMEM;
++		goto out;
++	}
++
++	runtime->private_data = ubi32_rd;
++
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "snd_ubi32_playback_open returned 0\n");
++#endif
++
++	return 0;
++out:
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "snd_ubi32_playback_open returned %d\n", ret);
++#endif
++
++	return ret;
++}
++
++static struct snd_pcm_ops snd_ubi32_playback_ops = {
++	.open = 	snd_ubi32_playback_open, /* Open */
++	.close = 	snd_ubi32_playback_close, /* Close */
++	.ioctl = 	snd_pcm_lib_ioctl, /* Generic IOCTL handler */
++	.hw_params = 	snd_ubi32_playback_hw_params, /* Hardware parameters/capabilities */
++	.hw_free = 	snd_ubi32_playback_hw_free, /* Free function for hw_params */
++	.prepare = 	snd_ubi32_playback_prepare,
++	.trigger = 	snd_ubi32_playback_trigger,
++	.pointer = 	snd_ubi32_playback_pointer,
++};
++
++/*
++ * Interrupt handler that gets called when the audio device
++ * interrupts Linux
++ */
++static irqreturn_t snd_ubi32_pcm_interrupt(int irq, void *appdata)
++{
++	struct snd_pcm *pcm = (struct snd_pcm *)appdata;
++	struct ubi32_snd_priv *ubi32_priv = pcm->private_data;
++	struct audiotioregs *regs = ubi32_priv->regs;
++
++	// Only one substream exists because our VP does not mix
++	// streams.  Therefore we don't have to search through
++	// substreams like the at91 driver does.
++	struct snd_pcm_substream *substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
++	struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++	int dma_to_fill = 0;
++
++#if SND_UBI32_DEBUG
++	snd_printk(KERN_INFO "Ubi32 ALSA interrupt\n");
++#endif
++
++	if (!pcm) {
++		snd_printk(KERN_WARNING "pcm does not exist\n");
++		return IRQ_HANDLED;
++	}
++
++	if (ubi32_rd == NULL) {
++		snd_printk(KERN_WARNING "No runtime data\n");
++		return IRQ_HANDLED;
++	}
++	// Check interrupt cause
++	if (0) {
++		// Handle the underflow case
++	} else if ((regs->status & UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST) ||
++		   (regs->status & UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST)) {
++		if (regs->status & UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST) {
++			dma_to_fill = 0;
++			regs->status &= ~UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST;
++		} else if (regs->status & UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST) {
++			dma_to_fill = 1;
++			regs->status &= ~UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST;
++		}   
++		ubi32_rd->period_ptr += ubi32_rd->period_size;
++		if (ubi32_rd->period_ptr >= ubi32_rd->dma_buffer_end) {
++			ubi32_rd->period_ptr = ubi32_rd->dma_buffer;
++		}
++		regs->playback_xfer_requests[dma_to_fill].ptr = (void *)ubi32_rd->period_ptr;
++		regs->playback_xfer_requests[dma_to_fill].ctr = ubi32_rd->period_size;
++		regs->playback_xfer_requests[dma_to_fill].active = 1;
++#if SND_UBI32_DEBUG
++		snd_printk(KERN_INFO "xfer_request %d ptr=0x%x ctr=%u\n", dma_to_fill, ubi32_rd->period_ptr, ubi32_rd->period_size);
++#endif
++		regs->int_flags |= UBI32_AUDIO_INT_FLAG_MORE_SAMPLES;
++		snd_ubi32_vp_int_set(substream->pcm);
++	}
++	// If we are interrupted by the VP, that means we completed
++	// processing one period of audio.  We need to inform the upper
++	// layers of ALSA of this.
++	snd_pcm_period_elapsed(substream);
++
++	return IRQ_HANDLED;
++}
++
++void __devexit snd_ubi32_pcm_remove(struct ubi32_snd_priv *ubi32_priv)
++{
++	struct snd_pcm *pcm = ubi32_priv->pcm;
++	free_irq(ubi32_priv->rx_irq, pcm);
++}
++
++#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12
++#error "Change this table to match pcm.h"
++#endif
++static unsigned int rates[] __initdata = {5512, 8000, 11025, 16000, 22050, 
++					  32000, 44100, 48000, 64000, 88200, 
++					  96000, 176400, 192000};
++
++/*
++ * snd_ubi32_pcm_probe
++ */
++int __devinit snd_ubi32_pcm_probe(struct ubi32_snd_priv *ubi32_priv, struct platform_device *pdev)
++{
++	struct snd_pcm *pcm;
++	int ret, err;
++	int i;
++	int j;
++	int nrates;
++	unsigned int rate_max = 0;
++	unsigned int rate_min = 0xFFFFFFFF;
++	unsigned int rate_mask = 0;
++	struct audiotioregs *regs;
++	struct resource *res_regs;
++	struct resource *res_irq_tx;
++	struct resource *res_irq_rx;
++	struct ubi32pcm_platform_data *pdata;
++
++	pdata = pdev->dev.platform_data;
++	if (!pdata) {
++		return -ENODEV;
++	}
++
++	/*
++	 * Get our resources, regs is the hardware driver base address
++	 * and the tx and rx irqs are used to communicate with the
++	 * hardware driver.
++	 */
++	res_regs = platform_get_resource(pdev, IORESOURCE_MEM, AUDIOTIO_MEM_RESOURCE);
++	res_irq_tx = platform_get_resource(pdev, IORESOURCE_IRQ, AUDIOTIO_TX_IRQ_RESOURCE);
++	res_irq_rx = platform_get_resource(pdev, IORESOURCE_IRQ, AUDIOTIO_RX_IRQ_RESOURCE);
++	if (!res_regs || !res_irq_tx || !res_irq_rx) {
++		snd_printk(KERN_WARNING "Could not get resources");
++		return -ENODEV;
++	}
++
++	ubi32_priv->regs = (struct audiotioregs *)res_regs->start;
++	ubi32_priv->tx_irq = res_irq_tx->start;
++	ubi32_priv->rx_irq = res_irq_rx->start;
++
++	/*
++	 * Check the version
++	 */
++	regs = ubi32_priv->regs;
++	if (regs->version != AUDIOTIOREGS_VERSION) {
++		snd_printk(KERN_WARNING "This audiotioreg is not compatible with this driver\n");
++		return -ENODEV;
++	}
++
++	/*
++	 * Find out the standard rates, also find max and min rates
++	 */
++	for (i = 0; i < ARRAY_SIZE(rates); i++) {
++		int found = 0;
++		for (j = 0; j < regs->n_sample_rates; j++) {
++			if (rates[i] == regs->sample_rates[j]) {
++				/*
++				 * Check to see if it is supported by the dac
++				 */
++				if ((rates[i] >= ubi32_priv->min_sample_rate) &&
++				    (!ubi32_priv->max_sample_rate || 
++				     (ubi32_priv->max_sample_rate && (rates[i] <= ubi32_priv->max_sample_rate)))) {
++					found = 1;
++					rate_mask |= (1 << i);
++					nrates++;
++					if (rates[i] < rate_min) {
++						rate_min = rates[i];
++					}
++					if (rates[i] > rate_max) {
++						rate_max = rates[i];
++					}
++					break;
++				}
++			}
++		}
++		if (!found) {
++			rate_mask |= SNDRV_PCM_RATE_KNOT;
++		}
++	}
++
++	snd_ubi32_playback_hw.rates = rate_mask;
++	snd_ubi32_playback_hw.rate_min = rate_min;
++	snd_ubi32_playback_hw.rate_max = rate_max;
++	ubi32_playback_rates.count = regs->n_sample_rates;
++	ubi32_playback_rates.list = regs->sample_rates;
++	ubi32_playback_rates.mask = 0;
++
++	for (i = 0; i < 32; i++) {
++		if (regs->channel_mask & (1 << i)) {
++			if (!snd_ubi32_playback_hw.channels_min) {
++				snd_ubi32_playback_hw.channels_min = i;
++			}
++			snd_ubi32_playback_hw.channels_max = i;
++		}
++	}
++	snd_printk(KERN_INFO "Ubi32PCM: channels_min:%u channels_max:%u\n",
++		   snd_ubi32_playback_hw.channels_min,
++		   snd_ubi32_playback_hw.channels_max);
++
++	if (regs->caps & AUDIOTIONODE_CAP_BE) {
++		snd_ubi32_playback_hw.formats |= SNDRV_PCM_FMTBIT_S16_BE;
++	}
++	if (regs->caps & AUDIOTIONODE_CAP_LE) {
++		snd_ubi32_playback_hw.formats |= SNDRV_PCM_FMTBIT_S16_LE;
++	}
++	snd_printk(KERN_INFO "Ubi32PCM: rates:%08x min:%u max:%u count:%d fmts:%016llx\n",
++		   snd_ubi32_playback_hw.rates,
++		   snd_ubi32_playback_hw.rate_min,
++		   snd_ubi32_playback_hw.rate_max,
++		   ubi32_playback_rates.count,
++		   snd_ubi32_playback_hw.formats);
++
++	ret = snd_pcm_new(ubi32_priv->card, "Ubi32 PCM", 0, 1, 0, &pcm);
++	if (ret < 0) {
++		return ret;
++	}
++
++	pcm->private_data = ubi32_priv;
++	ubi32_priv->pcm = pcm;
++	ubi32_priv->pdata = pdata;
++
++	pcm->info_flags = 0; // What is this for?  Just copied from other drivers
++
++	strcpy(pcm->name, "Ubi32-PCM");
++
++	// How do we allocate the buffer for non PCI devices?
++	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
++					      snd_dma_continuous_data(GFP_KERNEL),
++					      45*1024, 64*1024); //NOT SURE ABOUT SIZE, CHECK LATER
++
++	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ubi32_playback_ops);
++
++	/*
++	 * Start up the TIO
++	 */
++	regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++	regs->command = UBI32_AUDIO_CMD_ENABLE;
++	snd_ubi32_vp_int_set(pcm);
++
++	/* 
++	 * Request IRQ
++	 */
++	err = request_irq(ubi32_priv->rx_irq, snd_ubi32_pcm_interrupt, IRQF_DISABLED, pcm->name, pcm);
++	if (err) {
++		snd_printk(KERN_WARNING "request_irq failed: irq=%d err=%d\n", ubi32_priv->rx_irq, err);
++		return -ENODEV;
++	}
++
++	return ret;
++
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/ashldi3.c
+@@ -0,0 +1,62 @@
++/* ashrdi3.c extracted from gcc-2.95.2/libgcc2.c which is: */
++/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
++
++This file is part of GNU CC.
++
++GNU CC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2, or (at your option)
++any later version.
++
++GNU CC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GNU CC; see the file COPYING.  If not, write to
++the Free Software Foundation, 59 Temple Place - Suite 330,
++Boston, MA 02111-1307, USA.  */
++
++#define BITS_PER_UNIT 8
++
++typedef		 int SItype	__attribute__ ((mode (SI)));
++typedef unsigned int USItype	__attribute__ ((mode (SI)));
++typedef		 int DItype	__attribute__ ((mode (DI)));
++typedef int word_type __attribute__ ((mode (__word__)));
++
++struct DIstruct {SItype high, low;};
++
++typedef union
++{
++  struct DIstruct s;
++  DItype ll;
++} DIunion;
++
++DItype
++__ashldi3 (DItype u, word_type b)
++{
++  DIunion w;
++  word_type bm;
++  DIunion uu;
++
++  if (b == 0)
++    return u;
++
++  uu.ll = u;
++
++  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
++  if (bm <= 0)
++    {
++      w.s.low = 0;
++      w.s.high = (USItype)uu.s.low << -bm;
++    }
++  else
++    {
++      USItype carries = (USItype)uu.s.low >> bm;
++      w.s.low = (USItype)uu.s.low << b;
++      w.s.high = ((USItype)uu.s.high << b) | carries;
++    }
++
++  return w.ll;
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/ashrdi3.c
+@@ -0,0 +1,63 @@
++/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
++/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
++
++This file is part of GNU CC.
++
++GNU CC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2, or (at your option)
++any later version.
++
++GNU CC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GNU CC; see the file COPYING.  If not, write to
++the Free Software Foundation, 59 Temple Place - Suite 330,
++Boston, MA 02111-1307, USA.  */
++
++#define BITS_PER_UNIT 8
++
++typedef		 int SItype	__attribute__ ((mode (SI)));
++typedef unsigned int USItype	__attribute__ ((mode (SI)));
++typedef		 int DItype	__attribute__ ((mode (DI)));
++typedef int word_type __attribute__ ((mode (__word__)));
++
++struct DIstruct {SItype high, low;};
++
++typedef union
++{
++  struct DIstruct s;
++  DItype ll;
++} DIunion;
++
++DItype
++__ashrdi3 (DItype u, word_type b)
++{
++  DIunion w;
++  word_type bm;
++  DIunion uu;
++
++  if (b == 0)
++    return u;
++
++  uu.ll = u;
++
++  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
++  if (bm <= 0)
++    {
++      /* w.s.high = 1..1 or 0..0 */
++      w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
++      w.s.low = uu.s.high >> -bm;
++    }
++  else
++    {
++      USItype carries = (USItype)uu.s.high << bm;
++      w.s.high = uu.s.high >> b;
++      w.s.low = ((USItype)uu.s.low >> b) | carries;
++    }
++
++  return w.ll;
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/divmod.c
+@@ -0,0 +1,85 @@
++unsigned long
++udivmodsi4(unsigned long num, unsigned long den, int modwanted)
++{
++  unsigned long bit = 1;
++  unsigned long res = 0;
++
++  while (den < num && bit && !(den & (1L<<31)))
++    {
++      den <<=1;
++      bit <<=1;
++    }
++  while (bit)
++    {
++      if (num >= den)
++	{
++	  num -= den;
++	  res |= bit;
++	}
++      bit >>=1;
++      den >>=1;
++    }
++  if (modwanted) return num;
++  return res;
++}
++
++long
++__udivsi3 (long a, long b)
++{
++  return udivmodsi4 (a, b, 0);
++}
++
++long
++__umodsi3 (long a, long b)
++{
++  return udivmodsi4 (a, b, 1);
++}
++
++long
++__divsi3 (long a, long b)
++{
++  int neg = 0;
++  long res;
++
++  if (a < 0)
++    {
++      a = -a;
++      neg = !neg;
++    }
++
++  if (b < 0)
++    {
++      b = -b;
++      neg = !neg;
++    }
++
++  res = udivmodsi4 (a, b, 0);
++
++  if (neg)
++    res = -res;
++
++  return res;
++}
++
++long
++__modsi3 (long a, long b)
++{
++  int neg = 0;
++  long res;
++
++  if (a < 0)
++    {
++      a = -a;
++      neg = 1;
++    }
++
++  if (b < 0)
++    b = -b;
++
++  res = udivmodsi4 (a, b, 1);
++
++  if (neg)
++    res = -res;
++
++  return res;
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/lshrdi3.c
+@@ -0,0 +1,62 @@
++/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
++/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
++
++This file is part of GNU CC.
++
++GNU CC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2, or (at your option)
++any later version.
++
++GNU CC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GNU CC; see the file COPYING.  If not, write to
++the Free Software Foundation, 59 Temple Place - Suite 330,
++Boston, MA 02111-1307, USA.  */
++
++#define BITS_PER_UNIT 8
++
++typedef		 int SItype	__attribute__ ((mode (SI)));
++typedef unsigned int USItype	__attribute__ ((mode (SI)));
++typedef		 int DItype	__attribute__ ((mode (DI)));
++typedef int word_type __attribute__ ((mode (__word__)));
++
++struct DIstruct {SItype high, low;};
++
++typedef union
++{
++  struct DIstruct s;
++  DItype ll;
++} DIunion;
++
++DItype
++__lshrdi3 (DItype u, word_type b)
++{
++  DIunion w;
++  word_type bm;
++  DIunion uu;
++
++  if (b == 0)
++    return u;
++
++  uu.ll = u;
++
++  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
++  if (bm <= 0)
++    {
++      w.s.high = 0;
++      w.s.low = (USItype)uu.s.high >> -bm;
++    }
++  else
++    {
++      USItype carries = (USItype)uu.s.high << bm;
++      w.s.high = (USItype)uu.s.high >> b;
++      w.s.low = ((USItype)uu.s.low >> b) | carries;
++    }
++
++  return w.ll;
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/muldi3.c
+@@ -0,0 +1,87 @@
++/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
++			   gcc-2.7.2.3/longlong.h which is: */
++/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
++
++This file is part of GNU CC.
++
++GNU CC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2, or (at your option)
++any later version.
++
++GNU CC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GNU CC; see the file COPYING.  If not, write to
++the Free Software Foundation, 59 Temple Place - Suite 330,
++Boston, MA 02111-1307, USA.  */
++
++#define UWtype          USItype
++#define UHWtype         USItype
++#define W_TYPE_SIZE     32
++#define __BITS4 (W_TYPE_SIZE / 4)
++#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
++#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
++#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
++
++#define umul_ppmm(w1, w0, u, v)                                         \
++  do {                                                                  \
++    UWtype __x0, __x1, __x2, __x3;                                      \
++    UHWtype __ul, __vl, __uh, __vh;                                     \
++                                                                        \
++    __ul = __ll_lowpart (u);                                            \
++    __uh = __ll_highpart (u);                                           \
++    __vl = __ll_lowpart (v);                                            \
++    __vh = __ll_highpart (v);                                           \
++                                                                        \
++    __x0 = (UWtype) __ul * __vl;                                        \
++    __x1 = (UWtype) __ul * __vh;                                        \
++    __x2 = (UWtype) __uh * __vl;                                        \
++    __x3 = (UWtype) __uh * __vh;                                        \
++                                                                        \
++    __x1 += __ll_highpart (__x0);/* this can't give carry */            \
++    __x1 += __x2;               /* but this indeed can */               \
++    if (__x1 < __x2)            /* did we get it? */                    \
++      __x3 += __ll_B;           /* yes, add it in the proper pos.  */   \
++                                                                        \
++    (w1) = __x3 + __ll_highpart (__x1);                                 \
++    (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);          \
++  } while (0)
++
++
++#define __umulsidi3(u, v) \
++  ({DIunion __w;							\
++    umul_ppmm (__w.s.high, __w.s.low, u, v);				\
++    __w.ll; })
++
++typedef		 int SItype	__attribute__ ((mode (SI)));
++typedef unsigned int USItype	__attribute__ ((mode (SI)));
++typedef		 int DItype	__attribute__ ((mode (DI)));
++typedef int word_type __attribute__ ((mode (__word__)));
++
++struct DIstruct {SItype high, low;};
++
++typedef union
++{
++  struct DIstruct s;
++  DItype ll;
++} DIunion;
++
++DItype
++__muldi3 (DItype u, DItype v)
++{
++  DIunion w;
++  DIunion uu, vv;
++
++  uu.ll = u,
++  vv.ll = v;
++
++  w.ll = __umulsidi3 (uu.s.low, vv.s.low);
++  w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
++	       + (USItype) uu.s.high * (USItype) vv.s.low);
++
++  return w.ll;
++}