[adm5120] prepare trxsplit to support sysupgrade

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9085 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 0 insertions, 210 deletions

diff --git a/target/linux/adm5120/files/arch/mips/adm5120/Makefile b/target/linux/adm5120/files/arch/mips/adm5120/Makefile
index 583d1d12c1..2a5f391f25 100644
--- a/target/linux/adm5120/files/arch/mips/adm5120/Makefile
+++ b/target/linux/adm5120/files/arch/mips/adm5120/Makefile
@@ -9,5 +9,3 @@ obj-y	+= gpio.o
 obj-y	+= platform.o
 obj-y	+= reset.o
 obj-y	+= time.o
-
-obj-y	+= trxsplit.o
diff --git a/target/linux/adm5120/files/arch/mips/adm5120/trxsplit.c b/target/linux/adm5120/files/arch/mips/adm5120/trxsplit.c
deleted file mode 100644
index 941f306950..0000000000
--- a/target/linux/adm5120/files/arch/mips/adm5120/trxsplit.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- *  $Id$
- *
- *  Copyright (C) 2007 OpenWrt.org
- *  Copyright (C) Gabor Juhos <juhosg at openwrt.org>
- *
- *  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.
- *
- *  This program 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 this program; if not, write to the
- *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- *  Boston, MA  02110-1301, USA.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/kmod.h>
-#include <linux/root_dev.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-
-#include <linux/byteorder/generic.h>
-
-#define PFX	"trxsplit: "
-
-#define TRX_MAGIC	0x30524448	/* "HDR0" */
-#define TRX_VERSION	1
-#define TRX_MAX_LEN	0x3A0000
-#define TRX_NO_HEADER	1		/* Do not write TRX header */
-#define TRX_GZ_FILES	0x2     /* Contains up to TRX_MAX_OFFSET individual gzip files */
-#define TRX_MAX_OFFSET	3
-#define TRX_MIN_KERNEL_SIZE	256*1024
-
-struct trx_header {
-	u32 magic;		/* "HDR0" */
-	u32 len;		/* Length of file including header */
-	u32 crc32;		/* 32-bit CRC from flag_version to end of file */
-	u32 flag_version;	/* 0:15 flags, 16:31 version */
-	u32 offsets[TRX_MAX_OFFSET];	/* Offsets of partitions from start of header */
-};
-
-#define BLOCK_LEN_MIN		0x10000
-
-static struct mtd_info *trx_mtd = NULL;
-static unsigned long trx_offset = 0;
-static int trx_nr_parts = 0;
-static struct mtd_partition trx_parts[TRX_MAX_OFFSET];
-static struct trx_header trx_hdr;
-
-static int __init trxsplit_checktrx(struct mtd_info *mtd, unsigned long offset)
-{
-	size_t retlen;
-	int err;
-
-	err = mtd->read(mtd, offset, sizeof(trx_hdr), &retlen, (void *)&trx_hdr);
-	if (err) {
-		printk(KERN_ALERT PFX "unable to read from '%s'\n", mtd->name);
-		goto err_out;
-	}
-
-	if (retlen != sizeof(trx_hdr)) {
-		printk(KERN_ALERT PFX "reading failed on '%s'\n", mtd->name);
-		goto err_out;
-	}
-
-	trx_hdr.magic = le32_to_cpu(trx_hdr.magic);
-	trx_hdr.len = le32_to_cpu(trx_hdr.len);
-	trx_hdr.crc32 = le32_to_cpu(trx_hdr.crc32);
-	trx_hdr.flag_version = le32_to_cpu(trx_hdr.flag_version);
-	trx_hdr.offsets[0] = le32_to_cpu(trx_hdr.offsets[0]);
-	trx_hdr.offsets[1] = le32_to_cpu(trx_hdr.offsets[1]);
-	trx_hdr.offsets[2] = le32_to_cpu(trx_hdr.offsets[2]);
-
-	/* sanity checks */
-	if (trx_hdr.magic != TRX_MAGIC)
-		goto err_out;
-
-	if (trx_hdr.len > mtd->size - offset)
-		goto err_out;
-
-	/* TODO: add crc32 checking too? */
-
-	return 0;
-
-err_out:
-	return -1;
-}
-
-static int __init trxsplit_create_partitions(void)
-{
-	struct mtd_partition *part = trx_parts;
-	int ret = 0;
-	int i;
-
-	if (trx_mtd == NULL)
-		goto out;
-
-	printk(KERN_INFO PFX "creating TRX partitions in '%s' (%d,%d)\n",
-		trx_mtd->name, MTD_BLOCK_MAJOR, trx_mtd->index);
-
-	for (i=0; i<TRX_MAX_OFFSET;i++) {
-		part = &trx_parts[i];
-		if (trx_hdr.offsets[i] == 0)
-			continue;
-		part->offset = trx_offset + trx_hdr.offsets[i];
-		trx_nr_parts++;
-	}
-
-	for (i=0; i<trx_nr_parts-1; i++) {
-		trx_parts[i].size = trx_parts[i+1].offset - trx_parts[i].offset;
-	}
-	trx_parts[i].size = trx_mtd->size - trx_parts[i].offset;
-
-	i=0;
-	part = &trx_parts[i];
-	if (part->size < TRX_MIN_KERNEL_SIZE) {
-		part->name = "loader";
-		i++;
-	}
-
-	part = &trx_parts[i];
-	part->name = "kernel";
-	i++;
-
-	part = &trx_parts[i];
-	part->name = "rootfs";
-
-	ret = add_mtd_partitions(trx_mtd, trx_parts, trx_nr_parts);
-	if (ret) {
-		printk(KERN_ALERT PFX "creating TRX partitions failed\n");
-	}
-
-out:
-	return ret;
-}
-
-static void __init trxsplit_add_mtd(struct mtd_info *mtd)
-{
-	unsigned long offset;
-	unsigned long blocklen;
-	int err;
-
-	if (trx_mtd)
-		return;
-
-	blocklen = mtd->erasesize;
-	if (blocklen < BLOCK_LEN_MIN)
-		blocklen = BLOCK_LEN_MIN;
-
-	printk(KERN_INFO PFX "searching TRX header in '%s'\n", mtd->name);
-
-	err = 0;
-	for (offset=0; offset < mtd->size; offset+=blocklen) {
-		err = trxsplit_checktrx(mtd, offset);
-		if (err == 0)
-			break;
-	}
-
-	if (err) {
-		printk(KERN_ALERT PFX "no TRX header found\n");
-		return;
-	}
-
-	printk(KERN_INFO PFX "TRX header found at 0x%lX\n", offset);
-
-	trx_mtd = mtd;
-	trx_offset = offset;
-}
-
-static void __init trxsplit_remove_mtd(struct mtd_info *mtd)
-{
-	/* nothing to do */
-}
-
-static struct mtd_notifier trxsplit_notifier __initdata = {
-	.add	= trxsplit_add_mtd,
-	.remove	= trxsplit_remove_mtd,
-};
-
-static void __init trxsplit_find_trx(void)
-{
-	register_mtd_user(&trxsplit_notifier);
-	unregister_mtd_user(&trxsplit_notifier);
-}
-
-static int __init trxsplit_init(void)
-{
-	int ret;
-
-	trxsplit_find_trx();
-
-	ret = trxsplit_create_partitions();
-	return ret;
-}
-
-late_initcall(trxsplit_init);