Rename 'atheros' target to 'ath25'

Rename 'atheros' target to more precise 'ath25'.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>

SVN-Revision: 44736

1 files changed, 2189 insertions, 0 deletions

diff --git a/target/linux/ath25/patches-3.18/010-board.patch b/target/linux/ath25/patches-3.18/010-board.patch
new file mode 100644
index 0000000000..03332b6e30
--- /dev/null
+++ b/target/linux/ath25/patches-3.18/010-board.patch
@@ -0,0 +1,2189 @@
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -96,6 +96,19 @@ config AR7
+ 	  Support for the Texas Instruments AR7 System-on-a-Chip
+ 	  family: TNETD7100, 7200 and 7300.
+ 
++config ATH25
++	bool "Atheros AR231x/AR531x SoC support"
++	select CEVT_R4K
++	select CSRC_R4K
++	select DMA_NONCOHERENT
++	select IRQ_CPU
++	select IRQ_DOMAIN
++	select SYS_HAS_CPU_MIPS32_R1
++	select SYS_SUPPORTS_BIG_ENDIAN
++	select SYS_SUPPORTS_32BIT_KERNEL
++	help
++	  Support for Atheros AR231x and Atheros AR531x based boards
++
+ config ATH79
+ 	bool "Atheros AR71XX/AR724X/AR913X based boards"
+ 	select ARCH_REQUIRE_GPIOLIB
+@@ -835,6 +848,7 @@ config MIPS_PARAVIRT
+ endchoice
+ 
+ source "arch/mips/alchemy/Kconfig"
++source "arch/mips/ath25/Kconfig"
+ source "arch/mips/ath79/Kconfig"
+ source "arch/mips/bcm47xx/Kconfig"
+ source "arch/mips/bcm63xx/Kconfig"
+--- a/arch/mips/Kbuild.platforms
++++ b/arch/mips/Kbuild.platforms
+@@ -2,6 +2,7 @@
+ 
+ platforms += alchemy
+ platforms += ar7
++platforms += ath25
+ platforms += ath79
+ platforms += bcm47xx
+ platforms += bcm63xx
+--- /dev/null
++++ b/arch/mips/ath25/Platform
+@@ -0,0 +1,6 @@
++#
++# Atheros AR531X/AR231X WiSoC
++#
++platform-$(CONFIG_ATH25)	+= ath25/
++cflags-$(CONFIG_ATH25)		+= -I$(srctree)/arch/mips/include/asm/mach-ath25
++load-$(CONFIG_ATH25)		+= 0xffffffff80041000
+--- /dev/null
++++ b/arch/mips/ath25/Kconfig
+@@ -0,0 +1,9 @@
++config SOC_AR5312
++	bool "Atheros AR5312/AR2312+ SoC support"
++	depends on ATH25
++	default y
++
++config SOC_AR2315
++	bool "Atheros AR2315+ SoC support"
++	depends on ATH25
++	default y
+--- /dev/null
++++ b/arch/mips/ath25/Makefile
+@@ -0,0 +1,13 @@
++#
++# This file is subject to the terms and conditions of the GNU General Public
++# License.  See the file "COPYING" in the main directory of this archive
++# for more details.
++#
++# Copyright (C) 2006 FON Technology, SL.
++# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++# Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++#
++
++obj-y += board.o prom.o devices.o
++obj-$(CONFIG_SOC_AR5312) += ar5312.o
++obj-$(CONFIG_SOC_AR2315) += ar2315.o
+--- /dev/null
++++ b/arch/mips/ath25/board.c
+@@ -0,0 +1,234 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++ */
++
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <asm/irq_cpu.h>
++#include <asm/reboot.h>
++#include <asm/bootinfo.h>
++#include <asm/time.h>
++
++#include <ath25_platform.h>
++#include "devices.h"
++#include "ar5312.h"
++#include "ar2315.h"
++
++void (*ath25_irq_dispatch)(void);
++
++static inline bool check_radio_magic(const void __iomem *addr)
++{
++	addr += 0x7a; /* offset for flash magic */
++	return (__raw_readb(addr) == 0x5a) && (__raw_readb(addr + 1) == 0xa5);
++}
++
++static inline bool check_notempty(const void __iomem *addr)
++{
++	return __raw_readl(addr) != 0xffffffff;
++}
++
++static inline bool check_board_data(const void __iomem *addr, bool broken)
++{
++	/* config magic found */
++	if (__raw_readl(addr) == ATH25_BD_MAGIC)
++		return true;
++
++	if (!broken)
++		return false;
++
++	/* broken board data detected, use radio data to find the
++	 * offset, user will fix this */
++
++	if (check_radio_magic(addr + 0x1000))
++		return true;
++	if (check_radio_magic(addr + 0xf8))
++		return true;
++
++	return false;
++}
++
++static const void __iomem * __init find_board_config(const void __iomem *limit,
++						     const bool broken)
++{
++	const void __iomem *addr;
++	const void __iomem *begin = limit - 0x1000;
++	const void __iomem *end = limit - 0x30000;
++
++	for (addr = begin; addr >= end; addr -= 0x1000)
++		if (check_board_data(addr, broken))
++			return addr;
++
++	return NULL;
++}
++
++static const void __iomem * __init find_radio_config(const void __iomem *limit,
++						     const void __iomem *bcfg)
++{
++	const void __iomem *rcfg, *begin, *end;
++
++	/*
++	 * Now find the start of Radio Configuration data, using heuristics:
++	 * Search forward from Board Configuration data by 0x1000 bytes
++	 * at a time until we find non-0xffffffff.
++	 */
++	begin = bcfg + 0x1000;
++	end = limit;
++	for (rcfg = begin; rcfg < end; rcfg += 0x1000)
++		if (check_notempty(rcfg) && check_radio_magic(rcfg))
++			return rcfg;
++
++	/* AR2316 relocates radio config to new location */
++	begin = bcfg + 0xf8;
++	end = limit - 0x1000 + 0xf8;
++	for (rcfg = begin; rcfg < end; rcfg += 0x1000)
++		if (check_notempty(rcfg) && check_radio_magic(rcfg))
++			return rcfg;
++
++	return NULL;
++}
++
++/*
++ * NB: Search region size could be larger than the actual flash size,
++ * but this shouldn't be a problem here, because the flash
++ * will simply be mapped multiple times.
++ */
++int __init ath25_find_config(phys_addr_t base, unsigned long size)
++{
++	const void __iomem *flash_base, *flash_limit;
++	struct ath25_boarddata *config;
++	unsigned int rcfg_size;
++	int broken_boarddata = 0;
++	const void __iomem *bcfg, *rcfg;
++	u8 *board_data;
++	u8 *radio_data;
++	u8 *mac_addr;
++	u32 offset;
++
++	flash_base = ioremap_nocache(base, size);
++	flash_limit = flash_base + size;
++
++	ath25_board.config = NULL;
++	ath25_board.radio = NULL;
++
++	/* Copy the board and radio data to RAM, because accessing the mapped
++	 * memory of the flash directly after booting is not safe */
++
++	/* Try to find valid board and radio data */
++	bcfg = find_board_config(flash_limit, false);
++
++	/* If that fails, try to at least find valid radio data */
++	if (!bcfg) {
++		bcfg = find_board_config(flash_limit, true);
++		broken_boarddata = 1;
++	}
++
++	if (!bcfg) {
++		pr_warn("WARNING: No board configuration data found!\n");
++		goto error;
++	}
++
++	board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
++	ath25_board.config = (struct ath25_boarddata *)board_data;
++	memcpy_fromio(board_data, bcfg, 0x100);
++	if (broken_boarddata) {
++		pr_warn("WARNING: broken board data detected\n");
++		config = ath25_board.config;
++		if (is_zero_ether_addr(config->enet0_mac)) {
++			pr_info("Fixing up empty mac addresses\n");
++			config->reset_config_gpio = 0xffff;
++			config->sys_led_gpio = 0xffff;
++			random_ether_addr(config->wlan0_mac);
++			config->wlan0_mac[0] &= ~0x06;
++			random_ether_addr(config->enet0_mac);
++			random_ether_addr(config->enet1_mac);
++		}
++	}
++
++	/* Radio config starts 0x100 bytes after board config, regardless
++	 * of what the physical layout on the flash chip looks like */
++
++	rcfg = find_radio_config(flash_limit, bcfg);
++	if (!rcfg) {
++		pr_warn("WARNING: Could not find Radio Configuration data\n");
++		goto error;
++	}
++
++	radio_data = board_data + 0x100 + ((rcfg - bcfg) & 0xfff);
++	ath25_board.radio = radio_data;
++	offset = radio_data - board_data;
++	pr_info("Radio config found at offset 0x%x (0x%x)\n", rcfg - bcfg,
++		offset);
++	rcfg_size = BOARD_CONFIG_BUFSZ - offset;
++	memcpy_fromio(radio_data, rcfg, rcfg_size);
++
++	mac_addr = &radio_data[0x1d * 2];
++	if (is_broadcast_ether_addr(mac_addr)) {
++		pr_info("Radio MAC is blank; using board-data\n");
++		ether_addr_copy(mac_addr, ath25_board.config->wlan0_mac);
++	}
++
++	iounmap(flash_base);
++
++	return 0;
++
++error:
++	iounmap(flash_base);
++	return -ENODEV;
++}
++
++static void ath25_halt(void)
++{
++	local_irq_disable();
++	unreachable();
++}
++
++void __init plat_mem_setup(void)
++{
++	_machine_halt = ath25_halt;
++	pm_power_off = ath25_halt;
++
++	if (is_ar5312())
++		ar5312_plat_mem_setup();
++	else
++		ar2315_plat_mem_setup();
++
++	/* Disable data watchpoints */
++	write_c0_watchlo0(0);
++}
++
++asmlinkage void plat_irq_dispatch(void)
++{
++	ath25_irq_dispatch();
++}
++
++void __init plat_time_init(void)
++{
++	if (is_ar5312())
++		ar5312_plat_time_init();
++	else
++		ar2315_plat_time_init();
++}
++
++unsigned int __cpuinit get_c0_compare_int(void)
++{
++	return CP0_LEGACY_COMPARE_IRQ;
++}
++
++void __init arch_init_irq(void)
++{
++	clear_c0_status(ST0_IM);
++	mips_cpu_irq_init();
++
++	/* Initialize interrupt controllers */
++	if (is_ar5312())
++		ar5312_arch_init_irq();
++	else
++		ar2315_arch_init_irq();
++}
+--- /dev/null
++++ b/arch/mips/ath25/prom.c
+@@ -0,0 +1,26 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright MontaVista Software Inc
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * Prom setup file for AR5312/AR231x SoCs
++ */
++
++#include <linux/init.h>
++#include <asm/bootinfo.h>
++
++void __init prom_init(void)
++{
++}
++
++void __init prom_free_prom_memory(void)
++{
++}
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ath25/ath25_platform.h
+@@ -0,0 +1,73 @@
++#ifndef __ASM_MACH_ATH25_PLATFORM_H
++#define __ASM_MACH_ATH25_PLATFORM_H
++
++#include <linux/etherdevice.h>
++
++/*
++ * This is board-specific data that is stored in a "fixed" location in flash.
++ * It is shared across operating systems, so it should not be changed lightly.
++ * The main reason we need it is in order to extract the ethernet MAC
++ * address(es).
++ */
++struct ath25_boarddata {
++	u32 magic;                   /* board data is valid */
++#define ATH25_BD_MAGIC 0x35333131    /* "5311", for all 531x/231x platforms */
++	u16 cksum;                   /* checksum (starting with BD_REV 2) */
++	u16 rev;                     /* revision of this struct */
++#define BD_REV 4
++	char board_name[64];         /* Name of board */
++	u16 major;                   /* Board major number */
++	u16 minor;                   /* Board minor number */
++	u32 flags;                   /* Board configuration */
++#define BD_ENET0        0x00000001   /* ENET0 is stuffed */
++#define BD_ENET1        0x00000002   /* ENET1 is stuffed */
++#define BD_UART1        0x00000004   /* UART1 is stuffed */
++#define BD_UART0        0x00000008   /* UART0 is stuffed (dma) */
++#define BD_RSTFACTORY   0x00000010   /* Reset factory defaults stuffed */
++#define BD_SYSLED       0x00000020   /* System LED stuffed */
++#define BD_EXTUARTCLK   0x00000040   /* External UART clock */
++#define BD_CPUFREQ      0x00000080   /* cpu freq is valid in nvram */
++#define BD_SYSFREQ      0x00000100   /* sys freq is set in nvram */
++#define BD_WLAN0        0x00000200   /* Enable WLAN0 */
++#define BD_MEMCAP       0x00000400   /* CAP SDRAM @ mem_cap for testing */
++#define BD_DISWATCHDOG  0x00000800   /* disable system watchdog */
++#define BD_WLAN1        0x00001000   /* Enable WLAN1 (ar5212) */
++#define BD_ISCASPER     0x00002000   /* FLAG for AR2312 */
++#define BD_WLAN0_2G_EN  0x00004000   /* FLAG for radio0_2G */
++#define BD_WLAN0_5G_EN  0x00008000   /* FLAG for radio0_2G */
++#define BD_WLAN1_2G_EN  0x00020000   /* FLAG for radio0_2G */
++#define BD_WLAN1_5G_EN  0x00040000   /* FLAG for radio0_2G */
++	u16 reset_config_gpio;       /* Reset factory GPIO pin */
++	u16 sys_led_gpio;            /* System LED GPIO pin */
++
++	u32 cpu_freq;                /* CPU core frequency in Hz */
++	u32 sys_freq;                /* System frequency in Hz */
++	u32 cnt_freq;                /* Calculated C0_COUNT frequency */
++
++	u8  wlan0_mac[ETH_ALEN];
++	u8  enet0_mac[ETH_ALEN];
++	u8  enet1_mac[ETH_ALEN];
++
++	u16 pci_id;                  /* Pseudo PCIID for common code */
++	u16 mem_cap;                 /* cap bank1 in MB */
++
++	/* version 3 */
++	u8  wlan1_mac[ETH_ALEN];     /* (ar5212) */
++};
++
++#define BOARD_CONFIG_BUFSZ		0x1000
++
++/*
++ * Platform device information for the Wireless MAC
++ */
++struct ar231x_board_config {
++	u16 devid;
++
++	/* board config data */
++	struct ath25_boarddata *config;
++
++	/* radio calibration data */
++	const char *radio;
++};
++
++#endif /* __ASM_MACH_ATH25_PLATFORM_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h
+@@ -0,0 +1,64 @@
++/*
++ *  Atheros AR231x/AR531x SoC specific CPU feature overrides
++ *
++ *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
++ *
++ *  This file was derived from: include/asm-mips/cpu-features.h
++ *	Copyright (C) 2003, 2004 Ralf Baechle
++ *	Copyright (C) 2004 Maciej W. Rozycki
++ *
++ *  This program 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.
++ *
++ */
++#ifndef __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H
++#define __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H
++
++/*
++ * The Atheros AR531x/AR231x SoCs have MIPS 4Kc/4KEc core.
++ */
++#define cpu_has_tlb			1
++#define cpu_has_4kex			1
++#define cpu_has_3k_cache		0
++#define cpu_has_4k_cache		1
++#define cpu_has_tx39_cache		0
++#define cpu_has_sb1_cache		0
++#define cpu_has_fpu			0
++#define cpu_has_32fpr			0
++#define cpu_has_counter			1
++#define cpu_has_ejtag			1
++
++#if !defined(CONFIG_SOC_AR5312)
++#  define cpu_has_llsc			1
++#else
++/*
++ * The MIPS 4Kc V0.9 core in the AR5312/AR2312 have problems with the
++ * ll/sc instructions.
++ */
++#  define cpu_has_llsc			0
++#endif
++
++#define cpu_has_mips16			0
++#define cpu_has_mdmx			0
++#define cpu_has_mips3d			0
++#define cpu_has_smartmips		0
++
++#define cpu_has_mips32r1		1
++
++#if !defined(CONFIG_SOC_AR5312)
++#  define cpu_has_mips32r2		1
++#endif
++
++#define cpu_has_mips64r1		0
++#define cpu_has_mips64r2		0
++
++#define cpu_has_dsp			0
++#define cpu_has_mipsmt			0
++
++#define cpu_has_64bits			0
++#define cpu_has_64bit_zero_reg		0
++#define cpu_has_64bit_gp_regs		0
++#define cpu_has_64bit_addresses		0
++
++#endif /* __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ath25/dma-coherence.h
+@@ -0,0 +1,82 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2006  Ralf Baechle <ralf@linux-mips.org>
++ * Copyright (C) 2007  Felix Fietkau <nbd@openwrt.org>
++ *
++ */
++#ifndef __ASM_MACH_ATH25_DMA_COHERENCE_H
++#define __ASM_MACH_ATH25_DMA_COHERENCE_H
++
++#include <linux/device.h>
++
++/*
++ * We need some arbitrary non-zero value to be programmed to the BAR1 register
++ * of PCI host controller to enable DMA. The same value should be used as the
++ * offset to calculate the physical address of DMA buffer for PCI devices.
++ */
++#define AR2315_PCI_HOST_SDRAM_BASEADDR	0x20000000
++
++static inline dma_addr_t ath25_dev_offset(struct device *dev)
++{
++#ifdef CONFIG_PCI
++	extern struct bus_type pci_bus_type;
++
++	if (dev && dev->bus == &pci_bus_type)
++		return AR2315_PCI_HOST_SDRAM_BASEADDR;
++#endif
++	return 0;
++}
++
++static inline dma_addr_t
++plat_map_dma_mem(struct device *dev, void *addr, size_t size)
++{
++	return virt_to_phys(addr) + ath25_dev_offset(dev);
++}
++
++static inline dma_addr_t
++plat_map_dma_mem_page(struct device *dev, struct page *page)
++{
++	return page_to_phys(page) + ath25_dev_offset(dev);
++}
++
++static inline unsigned long
++plat_dma_addr_to_phys(struct device *dev, dma_addr_t dma_addr)
++{
++	return dma_addr - ath25_dev_offset(dev);
++}
++
++static inline void
++plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr, size_t size,
++		   enum dma_data_direction direction)
++{
++}
++
++static inline int plat_dma_supported(struct device *dev, u64 mask)
++{
++	return 1;
++}
++
++static inline void plat_extra_sync_for_device(struct device *dev)
++{
++}
++
++static inline int plat_dma_mapping_error(struct device *dev,
++					 dma_addr_t dma_addr)
++{
++	return 0;
++}
++
++static inline int plat_device_is_coherent(struct device *dev)
++{
++#ifdef CONFIG_DMA_COHERENT
++	return 1;
++#endif
++#ifdef CONFIG_DMA_NONCOHERENT
++	return 0;
++#endif
++}
++
++#endif /* __ASM_MACH_ATH25_DMA_COHERENCE_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ath25/gpio.h
+@@ -0,0 +1,16 @@
++#ifndef __ASM_MACH_ATH25_GPIO_H
++#define __ASM_MACH_ATH25_GPIO_H
++
++#include <asm-generic/gpio.h>
++
++#define gpio_get_value __gpio_get_value
++#define gpio_set_value __gpio_set_value
++#define gpio_cansleep __gpio_cansleep
++#define gpio_to_irq __gpio_to_irq
++
++static inline int irq_to_gpio(unsigned irq)
++{
++	return -EINVAL;
++}
++
++#endif	/* __ASM_MACH_ATH25_GPIO_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ath25/war.h
+@@ -0,0 +1,25 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
++ */
++#ifndef __ASM_MACH_ATH25_WAR_H
++#define __ASM_MACH_ATH25_WAR_H
++
++#define R4600_V1_INDEX_ICACHEOP_WAR	0
++#define R4600_V1_HIT_CACHEOP_WAR	0
++#define R4600_V2_HIT_CACHEOP_WAR	0
++#define R5432_CP0_INTERRUPT_WAR		0
++#define BCM1250_M3_WAR			0
++#define SIBYTE_1956_WAR			0
++#define MIPS4K_ICACHE_REFILL_WAR	0
++#define MIPS_CACHE_SYNC_WAR		0
++#define TX49XX_ICACHE_INDEX_INV_WAR	0
++#define RM9000_CDEX_SMP_WAR		0
++#define ICACHE_REFILLS_WORKAROUND_WAR	0
++#define R10000_LLSC_WAR			0
++#define MIPS34K_MISSED_ITLB_WAR		0
++
++#endif /* __ASM_MACH_ATH25_WAR_H */
+--- /dev/null
++++ b/arch/mips/ath25/ar2315_regs.h
+@@ -0,0 +1,410 @@
++/*
++ * Register definitions for AR2315+
++ *
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2008 Felix Fietkau <nbd@openwrt.org>
++ */
++
++#ifndef __ASM_MACH_ATH25_AR2315_REGS_H
++#define __ASM_MACH_ATH25_AR2315_REGS_H
++
++/*
++ * IRQs
++ */
++#define AR2315_IRQ_MISC		(MIPS_CPU_IRQ_BASE + 2)	/* C0_CAUSE: 0x0400 */
++#define AR2315_IRQ_WLAN0	(MIPS_CPU_IRQ_BASE + 3)	/* C0_CAUSE: 0x0800 */
++#define AR2315_IRQ_ENET0	(MIPS_CPU_IRQ_BASE + 4)	/* C0_CAUSE: 0x1000 */
++#define AR2315_IRQ_LCBUS_PCI	(MIPS_CPU_IRQ_BASE + 5)	/* C0_CAUSE: 0x2000 */
++#define AR2315_IRQ_WLAN0_POLL	(MIPS_CPU_IRQ_BASE + 6)	/* C0_CAUSE: 0x4000 */
++
++/*
++ * Miscellaneous interrupts, which share IP2.
++ */
++#define AR2315_MISC_IRQ_UART0		0
++#define AR2315_MISC_IRQ_I2C_RSVD	1
++#define AR2315_MISC_IRQ_SPI		2
++#define AR2315_MISC_IRQ_AHB		3
++#define AR2315_MISC_IRQ_APB		4
++#define AR2315_MISC_IRQ_TIMER		5
++#define AR2315_MISC_IRQ_GPIO		6
++#define AR2315_MISC_IRQ_WATCHDOG	7
++#define AR2315_MISC_IRQ_IR_RSVD		8
++#define AR2315_MISC_IRQ_COUNT		9
++
++/*
++ * Address map
++ */
++#define AR2315_SPI_READ_BASE	0x08000000	/* SPI flash */
++#define AR2315_SPI_READ_SIZE	0x01000000
++#define AR2315_WLAN0_BASE	0x10000000	/* Wireless MMR */
++#define AR2315_PCI_BASE		0x10100000	/* PCI MMR */
++#define AR2315_PCI_SIZE		0x00001000
++#define AR2315_SDRAMCTL_BASE	0x10300000	/* SDRAM MMR */
++#define AR2315_SDRAMCTL_SIZE	0x00000020
++#define AR2315_LOCAL_BASE	0x10400000	/* Local bus MMR */
++#define AR2315_ENET0_BASE	0x10500000	/* Ethernet MMR */
++#define AR2315_RST_BASE		0x11000000	/* Reset control MMR */
++#define AR2315_RST_SIZE		0x00000100
++#define AR2315_UART0_BASE	0x11100000	/* UART MMR */
++#define AR2315_SPI_MMR_BASE	0x11300000	/* SPI flash MMR */
++#define AR2315_SPI_MMR_SIZE	0x00000010
++#define AR2315_PCI_EXT_BASE	0x80000000	/* PCI external */
++#define AR2315_PCI_EXT_SIZE	0x40000000
++
++/*
++ * Configuration registers
++ */
++
++/* Cold reset register */
++#define AR2315_COLD_RESET		0x0000
++
++#define AR2315_RESET_COLD_AHB		0x00000001
++#define AR2315_RESET_COLD_APB		0x00000002
++#define AR2315_RESET_COLD_CPU		0x00000004
++#define AR2315_RESET_COLD_CPUWARM	0x00000008
++#define AR2315_RESET_SYSTEM		(RESET_COLD_CPU |\
++					 RESET_COLD_APB |\
++					 RESET_COLD_AHB)  /* full system */
++#define AR2317_RESET_SYSTEM		0x00000010
++
++/* Reset register */
++#define AR2315_RESET			0x0004
++
++#define AR2315_RESET_WARM_WLAN0_MAC	0x00000001  /* warm reset WLAN0 MAC */
++#define AR2315_RESET_WARM_WLAN0_BB	0x00000002  /* warm reset WLAN0 BB */
++#define AR2315_RESET_MPEGTS_RSVD	0x00000004  /* warm reset MPEG-TS */
++#define AR2315_RESET_PCIDMA		0x00000008  /* warm reset PCI ahb/dma */
++#define AR2315_RESET_MEMCTL		0x00000010  /* warm reset mem control */
++#define AR2315_RESET_LOCAL		0x00000020  /* warm reset local bus */
++#define AR2315_RESET_I2C_RSVD		0x00000040  /* warm reset I2C bus */
++#define AR2315_RESET_SPI		0x00000080  /* warm reset SPI iface */
++#define AR2315_RESET_UART0		0x00000100  /* warm reset UART0 */
++#define AR2315_RESET_IR_RSVD		0x00000200  /* warm reset IR iface */
++#define AR2315_RESET_EPHY0		0x00000400  /* cold reset ENET0 phy */
++#define AR2315_RESET_ENET0		0x00000800  /* cold reset ENET0 MAC */
++
++/* AHB master arbitration control */
++#define AR2315_AHB_ARB_CTL		0x0008
++
++#define AR2315_ARB_CPU			0x00000001  /* CPU, default */
++#define AR2315_ARB_WLAN			0x00000002  /* WLAN */
++#define AR2315_ARB_MPEGTS_RSVD		0x00000004  /* MPEG-TS */
++#define AR2315_ARB_LOCAL		0x00000008  /* Local bus */
++#define AR2315_ARB_PCI			0x00000010  /* PCI bus */
++#define AR2315_ARB_ETHERNET		0x00000020  /* Ethernet */
++#define AR2315_ARB_RETRY		0x00000100  /* Retry policy (debug) */
++
++/* Config Register */
++#define AR2315_ENDIAN_CTL		0x000c
++
++#define AR2315_CONFIG_AHB		0x00000001  /* EC-AHB bridge endian */
++#define AR2315_CONFIG_WLAN		0x00000002  /* WLAN byteswap */
++#define AR2315_CONFIG_MPEGTS_RSVD	0x00000004  /* MPEG-TS byteswap */
++#define AR2315_CONFIG_PCI		0x00000008  /* PCI byteswap */
++#define AR2315_CONFIG_MEMCTL		0x00000010  /* Mem controller endian */
++#define AR2315_CONFIG_LOCAL		0x00000020  /* Local bus byteswap */
++#define AR2315_CONFIG_ETHERNET		0x00000040  /* Ethernet byteswap */
++#define AR2315_CONFIG_MERGE		0x00000200  /* CPU write buffer merge */
++#define AR2315_CONFIG_CPU		0x00000400  /* CPU big endian */
++#define AR2315_CONFIG_BIG		0x00000400
++#define AR2315_CONFIG_PCIAHB		0x00000800
++#define AR2315_CONFIG_PCIAHB_BRIDGE	0x00001000
++#define AR2315_CONFIG_SPI		0x00008000  /* SPI byteswap */
++#define AR2315_CONFIG_CPU_DRAM		0x00010000
++#define AR2315_CONFIG_CPU_PCI		0x00020000
++#define AR2315_CONFIG_CPU_MMR		0x00040000
++
++/* NMI control */
++#define AR2315_NMI_CTL			0x0010
++
++#define AR2315_NMI_EN			1
++
++/* Revision Register - Initial value is 0x3010 (WMAC 3.0, AR231X 1.0). */
++#define AR2315_SREV			0x0014
++
++#define AR2315_REV_MAJ			0x000000f0
++#define AR2315_REV_MAJ_S		4
++#define AR2315_REV_MIN			0x0000000f
++#define AR2315_REV_MIN_S		0
++#define AR2315_REV_CHIP			(AR2315_REV_MAJ | AR2315_REV_MIN)
++
++/* Interface Enable */
++#define AR2315_IF_CTL			0x0018
++
++#define AR2315_IF_MASK			0x00000007
++#define AR2315_IF_DISABLED		0		/* Disable all */
++#define AR2315_IF_PCI			1		/* PCI */
++#define AR2315_IF_TS_LOCAL		2		/* Local bus */
++#define AR2315_IF_ALL			3		/* Emulation only */
++#define AR2315_IF_LOCAL_HOST		0x00000008
++#define AR2315_IF_PCI_HOST		0x00000010
++#define AR2315_IF_PCI_INTR		0x00000020
++#define AR2315_IF_PCI_CLK_MASK		0x00030000
++#define AR2315_IF_PCI_CLK_INPUT		0
++#define AR2315_IF_PCI_CLK_OUTPUT_LOW	1
++#define AR2315_IF_PCI_CLK_OUTPUT_CLK	2
++#define AR2315_IF_PCI_CLK_OUTPUT_HIGH	3
++#define AR2315_IF_PCI_CLK_SHIFT		16
++
++/* APB Interrupt control */
++#define AR2315_ISR			0x0020
++#define AR2315_IMR			0x0024
++#define AR2315_GISR			0x0028
++
++#define AR2315_ISR_UART0	0x00000001	/* high speed UART */
++#define AR2315_ISR_I2C_RSVD	0x00000002	/* I2C bus */
++#define AR2315_ISR_SPI		0x00000004	/* SPI bus */
++#define AR2315_ISR_AHB		0x00000008	/* AHB error */
++#define AR2315_ISR_APB		0x00000010	/* APB error */
++#define AR2315_ISR_TIMER	0x00000020	/* Timer */
++#define AR2315_ISR_GPIO		0x00000040	/* GPIO */
++#define AR2315_ISR_WD		0x00000080	/* Watchdog */
++#define AR2315_ISR_IR_RSVD	0x00000100	/* IR */
++
++#define AR2315_GISR_MISC	0x00000001	/* Misc */
++#define AR2315_GISR_WLAN0	0x00000002	/* WLAN0 */
++#define AR2315_GISR_MPEGTS_RSVD	0x00000004	/* MPEG-TS */
++#define AR2315_GISR_LOCALPCI	0x00000008	/* Local/PCI bus */
++#define AR2315_GISR_WMACPOLL	0x00000010
++#define AR2315_GISR_TIMER	0x00000020
++#define AR2315_GISR_ETHERNET	0x00000040	/* Ethernet */
++
++/* Generic timer */
++#define AR2315_TIMER			0x0030
++#define AR2315_RELOAD			0x0034
++
++/* Watchdog timer */
++#define AR2315_WDT_TIMER		0x0038
++#define AR2315_WDT_CTRL			0x003c
++
++#define AR2315_WDT_CTRL_IGNORE	0x00000000	/* ignore expiration */
++#define AR2315_WDT_CTRL_NMI	0x00000001	/* NMI on watchdog */
++#define AR2315_WDT_CTRL_RESET	0x00000002	/* reset on watchdog */
++
++/* CPU Performance Counters */
++#define AR2315_PERFCNT0			0x0048
++#define AR2315_PERFCNT1			0x004c
++
++#define AR2315_PERF0_DATAHIT	0x00000001  /* Count Data Cache Hits */
++#define AR2315_PERF0_DATAMISS	0x00000002  /* Count Data Cache Misses */
++#define AR2315_PERF0_INSTHIT	0x00000004  /* Count Instruction Cache Hits */
++#define AR2315_PERF0_INSTMISS	0x00000008  /* Count Instruction Cache Misses */
++#define AR2315_PERF0_ACTIVE	0x00000010  /* Count Active Processor Cycles */
++#define AR2315_PERF0_WBHIT	0x00000020  /* Count CPU Write Buffer Hits */
++#define AR2315_PERF0_WBMISS	0x00000040  /* Count CPU Write Buffer Misses */
++
++#define AR2315_PERF1_EB_ARDY	0x00000001  /* Count EB_ARdy signal */
++#define AR2315_PERF1_EB_AVALID	0x00000002  /* Count EB_AValid signal */
++#define AR2315_PERF1_EB_WDRDY	0x00000004  /* Count EB_WDRdy signal */
++#define AR2315_PERF1_EB_RDVAL	0x00000008  /* Count EB_RdVal signal */
++#define AR2315_PERF1_VRADDR	0x00000010  /* Count valid read address cycles*/
++#define AR2315_PERF1_VWADDR	0x00000020  /* Count valid write address cycl.*/
++#define AR2315_PERF1_VWDATA	0x00000040  /* Count valid write data cycles */
++
++/* AHB Error Reporting */
++#define AR2315_AHB_ERR0			0x0050  /* error  */
++#define AR2315_AHB_ERR1			0x0054  /* haddr  */
++#define AR2315_AHB_ERR2			0x0058  /* hwdata */
++#define AR2315_AHB_ERR3			0x005c  /* hrdata */
++#define AR2315_AHB_ERR4			0x0060  /* status */
++
++#define AR2315_AHB_ERROR_DET	1 /* AHB Error has been detected,          */
++				  /* write 1 to clear all bits in ERR0     */
++#define AR2315_AHB_ERROR_OVR	2 /* AHB Error overflow has been detected  */
++#define AR2315_AHB_ERROR_WDT	4 /* AHB Error due to wdt instead of hresp */
++
++#define AR2315_PROCERR_HMAST		0x0000000f
++#define AR2315_PROCERR_HMAST_DFLT	0
++#define AR2315_PROCERR_HMAST_WMAC	1
++#define AR2315_PROCERR_HMAST_ENET	2
++#define AR2315_PROCERR_HMAST_PCIENDPT	3
++#define AR2315_PROCERR_HMAST_LOCAL	4
++#define AR2315_PROCERR_HMAST_CPU	5
++#define AR2315_PROCERR_HMAST_PCITGT	6
++#define AR2315_PROCERR_HMAST_S		0
++#define AR2315_PROCERR_HWRITE		0x00000010
++#define AR2315_PROCERR_HSIZE		0x00000060
++#define AR2315_PROCERR_HSIZE_S		5
++#define AR2315_PROCERR_HTRANS		0x00000180
++#define AR2315_PROCERR_HTRANS_S		7
++#define AR2315_PROCERR_HBURST		0x00000e00
++#define AR2315_PROCERR_HBURST_S		9
++
++/* Clock Control */
++#define AR2315_PLLC_CTL			0x0064
++#define AR2315_PLLV_CTL			0x0068
++#define AR2315_CPUCLK			0x006c
++#define AR2315_AMBACLK			0x0070
++#define AR2315_SYNCCLK			0x0074
++#define AR2315_DSL_SLEEP_CTL		0x0080
++#define AR2315_DSL_SLEEP_DUR		0x0084
++
++/* PLLc Control fields */
++#define AR2315_PLLC_REF_DIV_M		0x00000003
++#define AR2315_PLLC_REF_DIV_S		0
++#define AR2315_PLLC_FDBACK_DIV_M	0x0000007c
++#define AR2315_PLLC_FDBACK_DIV_S	2
++#define AR2315_PLLC_ADD_FDBACK_DIV_M	0x00000080
++#define AR2315_PLLC_ADD_FDBACK_DIV_S	7
++#define AR2315_PLLC_CLKC_DIV_M		0x0001c000
++#define AR2315_PLLC_CLKC_DIV_S		14
++#define AR2315_PLLC_CLKM_DIV_M		0x00700000
++#define AR2315_PLLC_CLKM_DIV_S		20
++
++/* CPU CLK Control fields */
++#define AR2315_CPUCLK_CLK_SEL_M		0x00000003
++#define AR2315_CPUCLK_CLK_SEL_S		0
++#define AR2315_CPUCLK_CLK_DIV_M		0x0000000c
++#define AR2315_CPUCLK_CLK_DIV_S		2
++
++/* AMBA CLK Control fields */
++#define AR2315_AMBACLK_CLK_SEL_M	0x00000003
++#define AR2315_AMBACLK_CLK_SEL_S	0
++#define AR2315_AMBACLK_CLK_DIV_M	0x0000000c
++#define AR2315_AMBACLK_CLK_DIV_S	2
++
++/* PCI Clock Control */
++#define AR2315_PCICLK			0x00a4
++
++#define AR2315_PCICLK_INPUT_M		0x00000003
++#define AR2315_PCICLK_INPUT_S		0
++#define AR2315_PCICLK_PLLC_CLKM		0
++#define AR2315_PCICLK_PLLC_CLKM1	1
++#define AR2315_PCICLK_PLLC_CLKC		2
++#define AR2315_PCICLK_REF_CLK		3
++#define AR2315_PCICLK_DIV_M		0x0000000c
++#define AR2315_PCICLK_DIV_S		2
++#define AR2315_PCICLK_IN_FREQ		0
++#define AR2315_PCICLK_IN_FREQ_DIV_6	1
++#define AR2315_PCICLK_IN_FREQ_DIV_8	2
++#define AR2315_PCICLK_IN_FREQ_DIV_10	3
++
++/* Observation Control Register */
++#define AR2315_OCR			0x00b0
++
++#define AR2315_OCR_GPIO0_IRIN		0x00000040
++#define AR2315_OCR_GPIO1_IROUT		0x00000080
++#define AR2315_OCR_GPIO3_RXCLR		0x00000200
++
++/* General Clock Control */
++#define AR2315_MISCCLK			0x00b4
++
++#define AR2315_MISCCLK_PLLBYPASS_EN	0x00000001
++#define AR2315_MISCCLK_PROCREFCLK	0x00000002
++
++/*
++ * SDRAM Controller
++ *   - No read or write buffers are included.
++ */
++#define AR2315_MEM_CFG			0x0000
++#define AR2315_MEM_CTRL			0x000c
++#define AR2315_MEM_REF			0x0010
++
++#define AR2315_MEM_CFG_DATA_WIDTH_M	0x00006000
++#define AR2315_MEM_CFG_DATA_WIDTH_S	13
++#define AR2315_MEM_CFG_COL_WIDTH_M	0x00001e00
++#define AR2315_MEM_CFG_COL_WIDTH_S	9
++#define AR2315_MEM_CFG_ROW_WIDTH_M	0x000001e0
++#define AR2315_MEM_CFG_ROW_WIDTH_S	5
++#define AR2315_MEM_CFG_BANKADDR_BITS_M	0x00000018
++#define AR2315_MEM_CFG_BANKADDR_BITS_S	3
++
++/*
++ * Local Bus Interface Registers
++ */
++#define AR2315_LB_CONFIG		0x0000
++
++#define AR2315_LBCONF_OE	0x00000001	/* =1 OE is low-true */
++#define AR2315_LBCONF_CS0	0x00000002	/* =1 first CS is low-true */
++#define AR2315_LBCONF_CS1	0x00000004	/* =1 2nd CS is low-true */
++#define AR2315_LBCONF_RDY	0x00000008	/* =1 RDY is low-true */
++#define AR2315_LBCONF_WE	0x00000010	/* =1 Write En is low-true */
++#define AR2315_LBCONF_WAIT	0x00000020	/* =1 WAIT is low-true */
++#define AR2315_LBCONF_ADS	0x00000040	/* =1 Adr Strobe is low-true */
++#define AR2315_LBCONF_MOT	0x00000080	/* =0 Intel, =1 Motorola */
++#define AR2315_LBCONF_8CS	0x00000100	/* =1 8 bits CS, 0= 16bits */
++#define AR2315_LBCONF_8DS	0x00000200	/* =1 8 bits Data S, 0=16bits */
++#define AR2315_LBCONF_ADS_EN	0x00000400	/* =1 Enable ADS */
++#define AR2315_LBCONF_ADR_OE	0x00000800	/* =1 Adr cap on OE, WE or DS */
++#define AR2315_LBCONF_ADDT_MUX	0x00001000	/* =1 Adr and Data share bus */
++#define AR2315_LBCONF_DATA_OE	0x00002000	/* =1 Data cap on OE, WE, DS */
++#define AR2315_LBCONF_16DATA	0x00004000	/* =1 Data is 16 bits wide */
++#define AR2315_LBCONF_SWAPDT	0x00008000	/* =1 Byte swap data */
++#define AR2315_LBCONF_SYNC	0x00010000	/* =1 Bus synchronous to clk */
++#define AR2315_LBCONF_INT	0x00020000	/* =1 Intr is low true */
++#define AR2315_LBCONF_INT_CTR0	0x00000000	/* GND high-Z, Vdd is high-Z */
++#define AR2315_LBCONF_INT_CTR1	0x00040000	/* GND drive, Vdd is high-Z */
++#define AR2315_LBCONF_INT_CTR2	0x00080000	/* GND high-Z, Vdd drive */
++#define AR2315_LBCONF_INT_CTR3	0x000c0000	/* GND drive, Vdd drive */
++#define AR2315_LBCONF_RDY_WAIT	0x00100000	/* =1 RDY is negative of WAIT */
++#define AR2315_LBCONF_INT_PULSE	0x00200000	/* =1 Interrupt is a pulse */
++#define AR2315_LBCONF_ENABLE	0x00400000	/* =1 Falcon respond to LB */
++
++#define AR2315_LB_CLKSEL		0x0004
++
++#define AR2315_LBCLK_EXT	0x00000001	/* use external clk for lb */
++
++#define AR2315_LB_1MS			0x0008
++
++#define AR2315_LB1MS_MASK	0x0003ffff	/* # of AHB clk cycles in 1ms */
++
++#define AR2315_LB_MISCCFG		0x000c
++
++#define AR2315_LBM_TXD_EN	0x00000001	/* Enable TXD for fragments */
++#define AR2315_LBM_RX_INTEN	0x00000002	/* Enable LB ints on RX ready */
++#define AR2315_LBM_MBOXWR_INTEN	0x00000004	/* Enable LB ints on mbox wr */
++#define AR2315_LBM_MBOXRD_INTEN	0x00000008	/* Enable LB ints on mbox rd */
++#define AR2315_LMB_DESCSWAP_EN	0x00000010	/* Byte swap desc enable */
++#define AR2315_LBM_TIMEOUT_M	0x00ffff80
++#define AR2315_LBM_TIMEOUT_S	7
++#define AR2315_LBM_PORTMUX	0x07000000
++
++#define AR2315_LB_RXTSOFF		0x0010
++
++#define AR2315_LB_TX_CHAIN_EN		0x0100
++
++#define AR2315_LB_TXEN_0	0x00000001
++#define AR2315_LB_TXEN_1	0x00000002
++#define AR2315_LB_TXEN_2	0x00000004
++#define AR2315_LB_TXEN_3	0x00000008
++
++#define AR2315_LB_TX_CHAIN_DIS		0x0104
++#define AR2315_LB_TX_DESC_PTR		0x0200
++
++#define AR2315_LB_RX_CHAIN_EN		0x0400
++
++#define AR2315_LB_RXEN		0x00000001
++
++#define AR2315_LB_RX_CHAIN_DIS		0x0404
++#define AR2315_LB_RX_DESC_PTR		0x0408
++
++#define AR2315_LB_INT_STATUS		0x0500
++
++#define AR2315_LB_INT_TX_DESC		0x00000001
++#define AR2315_LB_INT_TX_OK		0x00000002
++#define AR2315_LB_INT_TX_ERR		0x00000004
++#define AR2315_LB_INT_TX_EOF		0x00000008
++#define AR2315_LB_INT_RX_DESC		0x00000010
++#define AR2315_LB_INT_RX_OK		0x00000020
++#define AR2315_LB_INT_RX_ERR		0x00000040
++#define AR2315_LB_INT_RX_EOF		0x00000080
++#define AR2315_LB_INT_TX_TRUNC		0x00000100
++#define AR2315_LB_INT_TX_STARVE		0x00000200
++#define AR2315_LB_INT_LB_TIMEOUT	0x00000400
++#define AR2315_LB_INT_LB_ERR		0x00000800
++#define AR2315_LB_INT_MBOX_WR		0x00001000
++#define AR2315_LB_INT_MBOX_RD		0x00002000
++
++/* Bit definitions for INT MASK are the same as INT_STATUS */
++#define AR2315_LB_INT_MASK		0x0504
++
++#define AR2315_LB_INT_EN		0x0508
++#define AR2315_LB_MBOX			0x0600
++
++#endif /* __ASM_MACH_ATH25_AR2315_REGS_H */
+--- /dev/null
++++ b/arch/mips/ath25/ar5312_regs.h
+@@ -0,0 +1,224 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++#ifndef __ASM_MACH_ATH25_AR5312_REGS_H
++#define __ASM_MACH_ATH25_AR5312_REGS_H
++
++/*
++ * IRQs
++ */
++#define AR5312_IRQ_WLAN0	(MIPS_CPU_IRQ_BASE + 2)	/* C0_CAUSE: 0x0400 */
++#define AR5312_IRQ_ENET0	(MIPS_CPU_IRQ_BASE + 3)	/* C0_CAUSE: 0x0800 */
++#define AR5312_IRQ_ENET1	(MIPS_CPU_IRQ_BASE + 4)	/* C0_CAUSE: 0x1000 */
++#define AR5312_IRQ_WLAN1	(MIPS_CPU_IRQ_BASE + 5)	/* C0_CAUSE: 0x2000 */
++#define AR5312_IRQ_MISC		(MIPS_CPU_IRQ_BASE + 6)	/* C0_CAUSE: 0x4000 */
++
++/*
++ * Miscellaneous interrupts, which share IP6.
++ */
++#define AR5312_MISC_IRQ_TIMER		0
++#define AR5312_MISC_IRQ_AHB_PROC	1
++#define AR5312_MISC_IRQ_AHB_DMA		2
++#define AR5312_MISC_IRQ_GPIO		3
++#define AR5312_MISC_IRQ_UART0		4
++#define AR5312_MISC_IRQ_UART0_DMA	5
++#define AR5312_MISC_IRQ_WATCHDOG	6
++#define AR5312_MISC_IRQ_LOCAL		7
++#define AR5312_MISC_IRQ_SPI		8
++#define AR5312_MISC_IRQ_COUNT		9
++
++/*
++ * Address Map
++ *
++ * The AR5312 supports 2 enet MACS, even though many reference boards only
++ * actually use 1 of them (i.e. Only MAC 0 is actually connected to an enet
++ * PHY or PHY switch. The AR2312 supports 1 enet MAC.
++ */
++#define AR5312_WLAN0_BASE		0x18000000
++#define AR5312_ENET0_BASE		0x18100000
++#define AR5312_ENET1_BASE		0x18200000
++#define AR5312_SDRAMCTL_BASE		0x18300000
++#define AR5312_SDRAMCTL_SIZE		0x00000010
++#define AR5312_FLASHCTL_BASE		0x18400000
++#define AR5312_FLASHCTL_SIZE		0x00000010
++#define AR5312_WLAN1_BASE		0x18500000
++#define AR5312_UART0_BASE		0x1c000000	/* UART MMR */
++#define AR5312_GPIO_BASE		0x1c002000
++#define AR5312_GPIO_SIZE		0x00000010
++#define AR5312_RST_BASE			0x1c003000
++#define AR5312_RST_SIZE			0x00000100
++#define AR5312_FLASH_BASE		0x1e000000
++#define AR5312_FLASH_SIZE		0x00800000
++
++/*
++ * Need these defines to determine true number of ethernet MACs
++ */
++#define AR5312_AR5312_REV2	0x0052		/* AR5312 WMAC (AP31) */
++#define AR5312_AR5312_REV7	0x0057		/* AR5312 WMAC (AP30-040) */
++#define AR5312_AR2313_REV8	0x0058		/* AR2313 WMAC (AP43-030) */
++
++/* Reset/Timer Block Address Map */
++#define AR5312_TIMER		0x0000 /* countdown timer */
++#define AR5312_RELOAD		0x0004 /* timer reload value */
++#define AR5312_WDT_CTRL		0x0008 /* watchdog cntrl */
++#define AR5312_WDT_TIMER	0x000c /* watchdog timer */
++#define AR5312_ISR		0x0010 /* Intr Status Reg */
++#define AR5312_IMR		0x0014 /* Intr Mask Reg */
++#define AR5312_RESET		0x0020
++#define AR5312_CLOCKCTL1	0x0064
++#define AR5312_SCRATCH		0x006c
++#define AR5312_PROCADDR		0x0070
++#define AR5312_PROC1		0x0074
++#define AR5312_DMAADDR		0x0078
++#define AR5312_DMA1		0x007c
++#define AR5312_ENABLE		0x0080 /* interface enb */
++#define AR5312_REV		0x0090 /* revision */
++
++/* AR5312_WDT_CTRL register bit field definitions */
++#define AR5312_WDT_CTRL_IGNORE	0x00000000	/* ignore expiration */
++#define AR5312_WDT_CTRL_NMI	0x00000001
++#define AR5312_WDT_CTRL_RESET	0x00000002
++
++/* AR5312_ISR register bit field definitions */
++#define AR5312_ISR_TIMER	0x00000001
++#define AR5312_ISR_AHBPROC	0x00000002
++#define AR5312_ISR_AHBDMA	0x00000004
++#define AR5312_ISR_GPIO		0x00000008
++#define AR5312_ISR_UART0	0x00000010
++#define AR5312_ISR_UART0DMA	0x00000020
++#define AR5312_ISR_WD		0x00000040
++#define AR5312_ISR_LOCAL	0x00000080
++
++/* AR5312_RESET register bit field definitions */
++#define AR5312_RESET_SYSTEM		0x00000001  /* cold reset full system */
++#define AR5312_RESET_PROC		0x00000002  /* cold reset MIPS core */
++#define AR5312_RESET_WLAN0		0x00000004  /* cold reset WLAN MAC/BB */
++#define AR5312_RESET_EPHY0		0x00000008  /* cold reset ENET0 phy */
++#define AR5312_RESET_EPHY1		0x00000010  /* cold reset ENET1 phy */
++#define AR5312_RESET_ENET0		0x00000020  /* cold reset ENET0 MAC */
++#define AR5312_RESET_ENET1		0x00000040  /* cold reset ENET1 MAC */
++#define AR5312_RESET_UART0		0x00000100  /* cold reset UART0 */
++#define AR5312_RESET_WLAN1		0x00000200  /* cold reset WLAN MAC/BB */
++#define AR5312_RESET_APB		0x00000400  /* cold reset APB ar5312 */
++#define AR5312_RESET_WARM_PROC		0x00001000  /* warm reset MIPS core */
++#define AR5312_RESET_WARM_WLAN0_MAC	0x00002000  /* warm reset WLAN0 MAC */
++#define AR5312_RESET_WARM_WLAN0_BB	0x00004000  /* warm reset WLAN0 BB */
++#define AR5312_RESET_NMI		0x00010000  /* send an NMI to the CPU */
++#define AR5312_RESET_WARM_WLAN1_MAC	0x00020000  /* warm reset WLAN1 MAC */
++#define AR5312_RESET_WARM_WLAN1_BB	0x00040000  /* warm reset WLAN1 BB */
++#define AR5312_RESET_LOCAL_BUS		0x00080000  /* reset local bus */
++#define AR5312_RESET_WDOG		0x00100000  /* last reset was a wdt */
++
++#define AR5312_RESET_WMAC0_BITS		(AR5312_RESET_WLAN0 |\
++					 AR5312_RESET_WARM_WLAN0_MAC |\
++					 AR5312_RESET_WARM_WLAN0_BB)
++
++#define AR5312_RESET_WMAC1_BITS		(AR5312_RESET_WLAN1 |\
++					 AR5312_RESET_WARM_WLAN1_MAC |\
++					 AR5312_RESET_WARM_WLAN1_BB)
++
++/* AR5312_CLOCKCTL1 register bit field definitions */
++#define AR5312_CLOCKCTL1_PREDIVIDE_MASK		0x00000030
++#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT	4
++#define AR5312_CLOCKCTL1_MULTIPLIER_MASK	0x00001f00
++#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT	8
++#define AR5312_CLOCKCTL1_DOUBLER_MASK		0x00010000
++
++/* Valid for AR5312 and AR2312 */
++#define AR5312_CLOCKCTL1_PREDIVIDE_MASK		0x00000030
++#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT	4
++#define AR5312_CLOCKCTL1_MULTIPLIER_MASK	0x00001f00
++#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT	8
++#define AR5312_CLOCKCTL1_DOUBLER_MASK		0x00010000
++
++/* Valid for AR2313 */
++#define AR2313_CLOCKCTL1_PREDIVIDE_MASK		0x00003000
++#define AR2313_CLOCKCTL1_PREDIVIDE_SHIFT	12
++#define AR2313_CLOCKCTL1_MULTIPLIER_MASK	0x001f0000
++#define AR2313_CLOCKCTL1_MULTIPLIER_SHIFT	16
++#define AR2313_CLOCKCTL1_DOUBLER_MASK		0x00000000
++
++/* AR5312_ENABLE register bit field definitions */
++#define AR5312_ENABLE_WLAN0			0x00000001
++#define AR5312_ENABLE_ENET0			0x00000002
++#define AR5312_ENABLE_ENET1			0x00000004
++#define AR5312_ENABLE_UART_AND_WLAN1_PIO	0x00000008/* UART & WLAN1 PIO */
++#define AR5312_ENABLE_WLAN1_DMA			0x00000010/* WLAN1 DMAs */
++#define AR5312_ENABLE_WLAN1		(AR5312_ENABLE_UART_AND_WLAN1_PIO |\
++					 AR5312_ENABLE_WLAN1_DMA)
++
++/* AR5312_REV register bit field definitions */
++#define AR5312_REV_WMAC_MAJ	0x0000f000
++#define AR5312_REV_WMAC_MAJ_S	12
++#define AR5312_REV_WMAC_MIN	0x00000f00
++#define AR5312_REV_WMAC_MIN_S	8
++#define AR5312_REV_MAJ		0x000000f0
++#define AR5312_REV_MAJ_S	4
++#define AR5312_REV_MIN		0x0000000f
++#define AR5312_REV_MIN_S	0
++#define AR5312_REV_CHIP		(AR5312_REV_MAJ|AR5312_REV_MIN)
++
++/* Major revision numbers, bits 7..4 of Revision ID register */
++#define AR5312_REV_MAJ_AR5312		0x4
++#define AR5312_REV_MAJ_AR2313		0x5
++
++/* Minor revision numbers, bits 3..0 of Revision ID register */
++#define AR5312_REV_MIN_DUAL		0x0	/* Dual WLAN version */
++#define AR5312_REV_MIN_SINGLE		0x1	/* Single WLAN version */
++
++/*
++ * ARM Flash Controller -- 3 flash banks with either x8 or x16 devices
++ */
++#define AR5312_FLASHCTL0	0x0000
++#define AR5312_FLASHCTL1	0x0004
++#define AR5312_FLASHCTL2	0x0008
++
++/* AR5312_FLASHCTL register bit field definitions */
++#define AR5312_FLASHCTL_IDCY	0x0000000f	/* Idle cycle turnaround time */
++#define AR5312_FLASHCTL_IDCY_S	0
++#define AR5312_FLASHCTL_WST1	0x000003e0	/* Wait state 1 */
++#define AR5312_FLASHCTL_WST1_S	5
++#define AR5312_FLASHCTL_RBLE	0x00000400	/* Read byte lane enable */
++#define AR5312_FLASHCTL_WST2	0x0000f800	/* Wait state 2 */
++#define AR5312_FLASHCTL_WST2_S	11
++#define AR5312_FLASHCTL_AC	0x00070000	/* Flash addr check (added) */
++#define AR5312_FLASHCTL_AC_S	16
++#define AR5312_FLASHCTL_AC_128K	0x00000000
++#define AR5312_FLASHCTL_AC_256K	0x00010000
++#define AR5312_FLASHCTL_AC_512K	0x00020000
++#define AR5312_FLASHCTL_AC_1M	0x00030000
++#define AR5312_FLASHCTL_AC_2M	0x00040000
++#define AR5312_FLASHCTL_AC_4M	0x00050000
++#define AR5312_FLASHCTL_AC_8M	0x00060000
++#define AR5312_FLASHCTL_AC_RES	0x00070000	/* 16MB is not supported */
++#define AR5312_FLASHCTL_E	0x00080000	/* Flash bank enable (added) */
++#define AR5312_FLASHCTL_BUSERR	0x01000000	/* Bus transfer error flag */
++#define AR5312_FLASHCTL_WPERR	0x02000000	/* Write protect error flag */
++#define AR5312_FLASHCTL_WP	0x04000000	/* Write protect */
++#define AR5312_FLASHCTL_BM	0x08000000	/* Burst mode */
++#define AR5312_FLASHCTL_MW	0x30000000	/* Mem width */
++#define AR5312_FLASHCTL_MW8	0x00000000	/* Mem width x8 */
++#define AR5312_FLASHCTL_MW16	0x10000000	/* Mem width x16 */
++#define AR5312_FLASHCTL_MW32	0x20000000	/* Mem width x32 (not supp) */
++#define AR5312_FLASHCTL_ATNR	0x00000000	/* Access == no retry */
++#define AR5312_FLASHCTL_ATR	0x80000000	/* Access == retry every */
++#define AR5312_FLASHCTL_ATR4	0xc0000000	/* Access == retry every 4 */
++
++/*
++ * ARM SDRAM Controller -- just enough to determine memory size
++ */
++#define AR5312_MEM_CFG1		0x0004
++
++#define AR5312_MEM_CFG1_AC0_M	0x00000700	/* bank 0: SDRAM addr check */
++#define AR5312_MEM_CFG1_AC0_S	8
++#define AR5312_MEM_CFG1_AC1_M	0x00007000	/* bank 1: SDRAM addr check */
++#define AR5312_MEM_CFG1_AC1_S	12
++
++#endif	/* __ASM_MACH_ATH25_AR5312_REGS_H */
+--- /dev/null
++++ b/arch/mips/ath25/ar5312.c
+@@ -0,0 +1,393 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
++ */
++
++/*
++ * Platform devices for Atheros AR5312 SoCs
++ */
++
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/bitops.h>
++#include <linux/irqdomain.h>
++#include <linux/interrupt.h>
++#include <linux/platform_device.h>
++#include <linux/mtd/physmap.h>
++#include <linux/reboot.h>
++#include <asm/bootinfo.h>
++#include <asm/reboot.h>
++#include <asm/time.h>
++
++#include <ath25_platform.h>
++
++#include "devices.h"
++#include "ar5312.h"
++#include "ar5312_regs.h"
++
++static void __iomem *ar5312_rst_base;
++static struct irq_domain *ar5312_misc_irq_domain;
++
++static inline u32 ar5312_rst_reg_read(u32 reg)
++{
++	return __raw_readl(ar5312_rst_base + reg);
++}
++
++static inline void ar5312_rst_reg_write(u32 reg, u32 val)
++{
++	__raw_writel(val, ar5312_rst_base + reg);
++}
++
++static inline void ar5312_rst_reg_mask(u32 reg, u32 mask, u32 val)
++{
++	u32 ret = ar5312_rst_reg_read(reg);
++
++	ret &= ~mask;
++	ret |= val;
++	ar5312_rst_reg_write(reg, ret);
++}
++
++static irqreturn_t ar5312_ahb_err_handler(int cpl, void *dev_id)
++{
++	u32 proc1 = ar5312_rst_reg_read(AR5312_PROC1);
++	u32 proc_addr = ar5312_rst_reg_read(AR5312_PROCADDR); /* clears error */
++	u32 dma1 = ar5312_rst_reg_read(AR5312_DMA1);
++	u32 dma_addr = ar5312_rst_reg_read(AR5312_DMAADDR);   /* clears error */
++
++	pr_emerg("AHB interrupt: PROCADDR=0x%8.8x PROC1=0x%8.8x DMAADDR=0x%8.8x DMA1=0x%8.8x\n",
++		 proc_addr, proc1, dma_addr, dma1);
++
++	machine_restart("AHB error"); /* Catastrophic failure */
++	return IRQ_HANDLED;
++}
++
++static struct irqaction ar5312_ahb_err_interrupt  = {
++	.handler = ar5312_ahb_err_handler,
++	.name    = "ar5312-ahb-error",
++};
++
++static void ar5312_misc_irq_handler(unsigned irq, struct irq_desc *desc)
++{
++	u32 pending = ar5312_rst_reg_read(AR5312_ISR) &
++		      ar5312_rst_reg_read(AR5312_IMR);
++	unsigned nr, misc_irq = 0;
++
++	if (pending) {
++		struct irq_domain *domain = irq_get_handler_data(irq);
++
++		nr = __ffs(pending);
++		misc_irq = irq_find_mapping(domain, nr);
++	}
++
++	if (misc_irq) {
++		generic_handle_irq(misc_irq);
++		if (nr == AR5312_MISC_IRQ_TIMER)
++			ar5312_rst_reg_read(AR5312_TIMER);
++	} else {
++		spurious_interrupt();
++	}
++}
++
++/* Enable the specified AR5312_MISC_IRQ interrupt */
++static void ar5312_misc_irq_unmask(struct irq_data *d)
++{
++	ar5312_rst_reg_mask(AR5312_IMR, 0, BIT(d->hwirq));
++}
++
++/* Disable the specified AR5312_MISC_IRQ interrupt */
++static void ar5312_misc_irq_mask(struct irq_data *d)
++{
++	ar5312_rst_reg_mask(AR5312_IMR, BIT(d->hwirq), 0);
++	ar5312_rst_reg_read(AR5312_IMR); /* flush write buffer */
++}
++
++static struct irq_chip ar5312_misc_irq_chip = {
++	.name		= "ar5312-misc",
++	.irq_unmask	= ar5312_misc_irq_unmask,
++	.irq_mask	= ar5312_misc_irq_mask,
++};
++
++static int ar5312_misc_irq_map(struct irq_domain *d, unsigned irq,
++			       irq_hw_number_t hw)
++{
++	irq_set_chip_and_handler(irq, &ar5312_misc_irq_chip, handle_level_irq);
++	return 0;
++}
++
++static struct irq_domain_ops ar5312_misc_irq_domain_ops = {
++	.map = ar5312_misc_irq_map,
++};
++
++static void ar5312_irq_dispatch(void)
++{
++	u32 pending = read_c0_status() & read_c0_cause();
++
++	if (pending & CAUSEF_IP2)
++		do_IRQ(AR5312_IRQ_WLAN0);
++	else if (pending & CAUSEF_IP5)
++		do_IRQ(AR5312_IRQ_WLAN1);
++	else if (pending & CAUSEF_IP6)
++		do_IRQ(AR5312_IRQ_MISC);
++	else if (pending & CAUSEF_IP7)
++		do_IRQ(ATH25_IRQ_CPU_CLOCK);
++	else
++		spurious_interrupt();
++}
++
++void __init ar5312_arch_init_irq(void)
++{
++	struct irq_domain *domain;
++	unsigned irq;
++
++	ath25_irq_dispatch = ar5312_irq_dispatch;
++
++	domain = irq_domain_add_linear(NULL, AR5312_MISC_IRQ_COUNT,
++				       &ar5312_misc_irq_domain_ops, NULL);
++	if (!domain)
++		panic("Failed to add IRQ domain");
++
++	irq = irq_create_mapping(domain, AR5312_MISC_IRQ_AHB_PROC);
++	setup_irq(irq, &ar5312_ahb_err_interrupt);
++
++	irq_set_chained_handler(AR5312_IRQ_MISC, ar5312_misc_irq_handler);
++	irq_set_handler_data(AR5312_IRQ_MISC, domain);
++
++	ar5312_misc_irq_domain = domain;
++}
++
++static struct physmap_flash_data ar5312_flash_data = {
++	.width = 2,
++};
++
++static struct resource ar5312_flash_resource = {
++	.start = AR5312_FLASH_BASE,
++	.end = AR5312_FLASH_BASE + AR5312_FLASH_SIZE - 1,
++	.flags = IORESOURCE_MEM,
++};
++
++static struct platform_device ar5312_physmap_flash = {
++	.name = "physmap-flash",
++	.id = 0,
++	.dev.platform_data = &ar5312_flash_data,
++	.resource = &ar5312_flash_resource,
++	.num_resources = 1,
++};
++
++static void __init ar5312_flash_init(void)
++{
++	void __iomem *flashctl_base;
++	u32 ctl;
++
++	flashctl_base = ioremap_nocache(AR5312_FLASHCTL_BASE,
++					AR5312_FLASHCTL_SIZE);
++
++	ctl = __raw_readl(flashctl_base + AR5312_FLASHCTL0);
++	ctl &= AR5312_FLASHCTL_MW;
++
++	/* fixup flash width */
++	switch (ctl) {
++	case AR5312_FLASHCTL_MW16:
++		ar5312_flash_data.width = 2;
++		break;
++	case AR5312_FLASHCTL_MW8:
++	default:
++		ar5312_flash_data.width = 1;
++		break;
++	}
++
++	/*
++	 * Configure flash bank 0.
++	 * Assume 8M window size. Flash will be aliased if it's smaller
++	 */
++	ctl |= AR5312_FLASHCTL_E | AR5312_FLASHCTL_AC_8M | AR5312_FLASHCTL_RBLE;
++	ctl |= 0x01 << AR5312_FLASHCTL_IDCY_S;
++	ctl |= 0x07 << AR5312_FLASHCTL_WST1_S;
++	ctl |= 0x07 << AR5312_FLASHCTL_WST2_S;
++	__raw_writel(ctl, flashctl_base + AR5312_FLASHCTL0);
++
++	/* Disable other flash banks */
++	ctl = __raw_readl(flashctl_base + AR5312_FLASHCTL1);
++	ctl &= ~(AR5312_FLASHCTL_E | AR5312_FLASHCTL_AC);
++	__raw_writel(ctl, flashctl_base + AR5312_FLASHCTL1);
++	ctl = __raw_readl(flashctl_base + AR5312_FLASHCTL2);
++	ctl &= ~(AR5312_FLASHCTL_E | AR5312_FLASHCTL_AC);
++	__raw_writel(ctl, flashctl_base + AR5312_FLASHCTL2);
++
++	iounmap(flashctl_base);
++}
++
++void __init ar5312_init_devices(void)
++{
++	struct ath25_boarddata *config;
++
++	ar5312_flash_init();
++
++	/* Locate board/radio config data */
++	ath25_find_config(AR5312_FLASH_BASE, AR5312_FLASH_SIZE);
++	config = ath25_board.config;
++
++	/* AR2313 has CPU minor rev. 10 */
++	if ((current_cpu_data.processor_id & 0xff) == 0x0a)
++		ath25_soc = ATH25_SOC_AR2313;
++
++	/* AR2312 shares the same Silicon ID as AR5312 */
++	else if (config->flags & BD_ISCASPER)
++		ath25_soc = ATH25_SOC_AR2312;
++
++	/* Everything else is probably AR5312 or compatible */
++	else
++		ath25_soc = ATH25_SOC_AR5312;
++
++	platform_device_register(&ar5312_physmap_flash);
++
++	switch (ath25_soc) {
++	case ATH25_SOC_AR5312:
++		if (!ath25_board.radio)
++			return;
++
++		if (!(config->flags & BD_WLAN0))
++			break;
++
++		ath25_add_wmac(0, AR5312_WLAN0_BASE, AR5312_IRQ_WLAN0);
++		break;
++	case ATH25_SOC_AR2312:
++	case ATH25_SOC_AR2313:
++		if (!ath25_board.radio)
++			return;
++		break;
++	default:
++		break;
++	}
++
++	if (config->flags & BD_WLAN1)
++		ath25_add_wmac(1, AR5312_WLAN1_BASE, AR5312_IRQ_WLAN1);
++}
++
++static void ar5312_restart(char *command)
++{
++	/* reset the system */
++	local_irq_disable();
++	while (1)
++		ar5312_rst_reg_write(AR5312_RESET, AR5312_RESET_SYSTEM);
++}
++
++/*
++ * This table is indexed by bits 5..4 of the CLOCKCTL1 register
++ * to determine the predevisor value.
++ */
++static unsigned clockctl1_predivide_table[4] __initdata = { 1, 2, 4, 5 };
++
++static unsigned __init ar5312_cpu_frequency(void)
++{
++	u32 scratch, devid, clock_ctl1;
++	u32 predivide_mask, multiplier_mask, doubler_mask;
++	unsigned predivide_shift, multiplier_shift;
++	unsigned predivide_select, predivisor, multiplier;
++
++	/* Trust the bootrom's idea of cpu frequency. */
++	scratch = ar5312_rst_reg_read(AR5312_SCRATCH);
++	if (scratch)
++		return scratch;
++
++	devid = ar5312_rst_reg_read(AR5312_REV);
++	devid = (devid & AR5312_REV_MAJ) >> AR5312_REV_MAJ_S;
++	if (devid == AR5312_REV_MAJ_AR2313) {
++		predivide_mask = AR2313_CLOCKCTL1_PREDIVIDE_MASK;
++		predivide_shift = AR2313_CLOCKCTL1_PREDIVIDE_SHIFT;
++		multiplier_mask = AR2313_CLOCKCTL1_MULTIPLIER_MASK;
++		multiplier_shift = AR2313_CLOCKCTL1_MULTIPLIER_SHIFT;
++		doubler_mask = AR2313_CLOCKCTL1_DOUBLER_MASK;
++	} else { /* AR5312 and AR2312 */
++		predivide_mask = AR5312_CLOCKCTL1_PREDIVIDE_MASK;
++		predivide_shift = AR5312_CLOCKCTL1_PREDIVIDE_SHIFT;
++		multiplier_mask = AR5312_CLOCKCTL1_MULTIPLIER_MASK;
++		multiplier_shift = AR5312_CLOCKCTL1_MULTIPLIER_SHIFT;
++		doubler_mask = AR5312_CLOCKCTL1_DOUBLER_MASK;
++	}
++
++	/*
++	 * Clocking is derived from a fixed 40MHz input clock.
++	 *
++	 *  cpu_freq = input_clock * MULT (where MULT is PLL multiplier)
++	 *  sys_freq = cpu_freq / 4	  (used for APB clock, serial,
++	 *				   flash, Timer, Watchdog Timer)
++	 *
++	 *  cnt_freq = cpu_freq / 2	  (use for CPU count/compare)
++	 *
++	 * So, for example, with a PLL multiplier of 5, we have
++	 *
++	 *  cpu_freq = 200MHz
++	 *  sys_freq = 50MHz
++	 *  cnt_freq = 100MHz
++	 *
++	 * We compute the CPU frequency, based on PLL settings.
++	 */
++
++	clock_ctl1 = ar5312_rst_reg_read(AR5312_CLOCKCTL1);
++	predivide_select = (clock_ctl1 & predivide_mask) >> predivide_shift;
++	predivisor = clockctl1_predivide_table[predivide_select];
++	multiplier = (clock_ctl1 & multiplier_mask) >> multiplier_shift;
++
++	if (clock_ctl1 & doubler_mask)
++		multiplier <<= 1;
++
++	return (40000000 / predivisor) * multiplier;
++}
++
++static inline unsigned ar5312_sys_frequency(void)
++{
++	return ar5312_cpu_frequency() / 4;
++}
++
++void __init ar5312_plat_time_init(void)
++{
++	mips_hpt_frequency = ar5312_cpu_frequency() / 2;
++}
++
++void __init ar5312_plat_mem_setup(void)
++{
++	void __iomem *sdram_base;
++	u32 memsize, memcfg, bank0_ac, bank1_ac;
++	u32 devid;
++
++	/* Detect memory size */
++	sdram_base = ioremap_nocache(AR5312_SDRAMCTL_BASE,
++				     AR5312_SDRAMCTL_SIZE);
++	memcfg = __raw_readl(sdram_base + AR5312_MEM_CFG1);
++	bank0_ac = ATH25_REG_MS(memcfg, AR5312_MEM_CFG1_AC0);
++	bank1_ac = ATH25_REG_MS(memcfg, AR5312_MEM_CFG1_AC1);
++	memsize = (bank0_ac ? (1 << (bank0_ac + 1)) : 0) +
++		  (bank1_ac ? (1 << (bank1_ac + 1)) : 0);
++	memsize <<= 20;
++	add_memory_region(0, memsize, BOOT_MEM_RAM);
++	iounmap(sdram_base);
++
++	ar5312_rst_base = ioremap_nocache(AR5312_RST_BASE, AR5312_RST_SIZE);
++
++	devid = ar5312_rst_reg_read(AR5312_REV);
++	devid >>= AR5312_REV_WMAC_MIN_S;
++	devid &= AR5312_REV_CHIP;
++	ath25_board.devid = (u16)devid;
++
++	/* Clear any lingering AHB errors */
++	ar5312_rst_reg_read(AR5312_PROCADDR);
++	ar5312_rst_reg_read(AR5312_DMAADDR);
++	ar5312_rst_reg_write(AR5312_WDT_CTRL, AR5312_WDT_CTRL_IGNORE);
++
++	_machine_restart = ar5312_restart;
++}
++
++void __init ar5312_arch_init(void)
++{
++	unsigned irq = irq_create_mapping(ar5312_misc_irq_domain,
++					  AR5312_MISC_IRQ_UART0);
++
++	ath25_serial_setup(AR5312_UART0_BASE, irq, ar5312_sys_frequency());
++}
+--- /dev/null
++++ b/arch/mips/ath25/ar2315.c
+@@ -0,0 +1,308 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
++ */
++
++/*
++ * Platform devices for Atheros AR2315 SoCs
++ */
++
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/bitops.h>
++#include <linux/irqdomain.h>
++#include <linux/interrupt.h>
++#include <linux/platform_device.h>
++#include <linux/reboot.h>
++#include <asm/bootinfo.h>
++#include <asm/reboot.h>
++#include <asm/time.h>
++
++#include <ath25_platform.h>
++
++#include "devices.h"
++#include "ar2315.h"
++#include "ar2315_regs.h"
++
++static void __iomem *ar2315_rst_base;
++static struct irq_domain *ar2315_misc_irq_domain;
++
++static inline u32 ar2315_rst_reg_read(u32 reg)
++{
++	return __raw_readl(ar2315_rst_base + reg);
++}
++
++static inline void ar2315_rst_reg_write(u32 reg, u32 val)
++{
++	__raw_writel(val, ar2315_rst_base + reg);
++}
++
++static inline void ar2315_rst_reg_mask(u32 reg, u32 mask, u32 val)
++{
++	u32 ret = ar2315_rst_reg_read(reg);
++
++	ret &= ~mask;
++	ret |= val;
++	ar2315_rst_reg_write(reg, ret);
++}
++
++static irqreturn_t ar2315_ahb_err_handler(int cpl, void *dev_id)
++{
++	ar2315_rst_reg_write(AR2315_AHB_ERR0, AR2315_AHB_ERROR_DET);
++	ar2315_rst_reg_read(AR2315_AHB_ERR1);
++
++	pr_emerg("AHB fatal error\n");
++	machine_restart("AHB error"); /* Catastrophic failure */
++
++	return IRQ_HANDLED;
++}
++
++static struct irqaction ar2315_ahb_err_interrupt  = {
++	.handler	= ar2315_ahb_err_handler,
++	.name		= "ar2315-ahb-error",
++};
++
++static void ar2315_misc_irq_handler(unsigned irq, struct irq_desc *desc)
++{
++	u32 pending = ar2315_rst_reg_read(AR2315_ISR) &
++		      ar2315_rst_reg_read(AR2315_IMR);
++	unsigned nr, misc_irq = 0;
++
++	if (pending) {
++		struct irq_domain *domain = irq_get_handler_data(irq);
++
++		nr = __ffs(pending);
++		misc_irq = irq_find_mapping(domain, nr);
++	}
++
++	if (misc_irq) {
++		if (nr == AR2315_MISC_IRQ_GPIO)
++			ar2315_rst_reg_write(AR2315_ISR, AR2315_ISR_GPIO);
++		else if (nr == AR2315_MISC_IRQ_WATCHDOG)
++			ar2315_rst_reg_write(AR2315_ISR, AR2315_ISR_WD);
++		generic_handle_irq(misc_irq);
++	} else {
++		spurious_interrupt();
++	}
++}
++
++static void ar2315_misc_irq_unmask(struct irq_data *d)
++{
++	ar2315_rst_reg_mask(AR2315_IMR, 0, BIT(d->hwirq));
++}
++
++static void ar2315_misc_irq_mask(struct irq_data *d)
++{
++	ar2315_rst_reg_mask(AR2315_IMR, BIT(d->hwirq), 0);
++}
++
++static struct irq_chip ar2315_misc_irq_chip = {
++	.name		= "ar2315-misc",
++	.irq_unmask	= ar2315_misc_irq_unmask,
++	.irq_mask	= ar2315_misc_irq_mask,
++};
++
++static int ar2315_misc_irq_map(struct irq_domain *d, unsigned irq,
++			       irq_hw_number_t hw)
++{
++	irq_set_chip_and_handler(irq, &ar2315_misc_irq_chip, handle_level_irq);
++	return 0;
++}
++
++static struct irq_domain_ops ar2315_misc_irq_domain_ops = {
++	.map = ar2315_misc_irq_map,
++};
++
++/*
++ * Called when an interrupt is received, this function
++ * determines exactly which interrupt it was, and it
++ * invokes the appropriate handler.
++ *
++ * Implicitly, we also define interrupt priority by
++ * choosing which to dispatch first.
++ */
++static void ar2315_irq_dispatch(void)
++{
++	u32 pending = read_c0_status() & read_c0_cause();
++
++	if (pending & CAUSEF_IP3)
++		do_IRQ(AR2315_IRQ_WLAN0);
++	else if (pending & CAUSEF_IP2)
++		do_IRQ(AR2315_IRQ_MISC);
++	else if (pending & CAUSEF_IP7)
++		do_IRQ(ATH25_IRQ_CPU_CLOCK);
++	else
++		spurious_interrupt();
++}
++
++void __init ar2315_arch_init_irq(void)
++{
++	struct irq_domain *domain;
++	unsigned irq;
++
++	ath25_irq_dispatch = ar2315_irq_dispatch;
++
++	domain = irq_domain_add_linear(NULL, AR2315_MISC_IRQ_COUNT,
++				       &ar2315_misc_irq_domain_ops, NULL);
++	if (!domain)
++		panic("Failed to add IRQ domain");
++
++	irq = irq_create_mapping(domain, AR2315_MISC_IRQ_AHB);
++	setup_irq(irq, &ar2315_ahb_err_interrupt);
++
++	irq_set_chained_handler(AR2315_IRQ_MISC, ar2315_misc_irq_handler);
++	irq_set_handler_data(AR2315_IRQ_MISC, domain);
++
++	ar2315_misc_irq_domain = domain;
++}
++
++void __init ar2315_init_devices(void)
++{
++	/* Find board configuration */
++	ath25_find_config(AR2315_SPI_READ_BASE, AR2315_SPI_READ_SIZE);
++
++	ath25_add_wmac(0, AR2315_WLAN0_BASE, AR2315_IRQ_WLAN0);
++}
++
++static void ar2315_restart(char *command)
++{
++	void (*mips_reset_vec)(void) = (void *)0xbfc00000;
++
++	local_irq_disable();
++
++	/* try reset the system via reset control */
++	ar2315_rst_reg_write(AR2315_COLD_RESET, AR2317_RESET_SYSTEM);
++
++	/* Cold reset does not work on the AR2315/6, use the GPIO reset bits
++	 * a workaround. Give it some time to attempt a gpio based hardware
++	 * reset (atheros reference design workaround) */
++
++	/* TODO: implement the GPIO reset workaround */
++
++	/* Some boards (e.g. Senao EOC-2610) don't implement the reset logic
++	 * workaround. Attempt to jump to the mips reset location -
++	 * the boot loader itself might be able to recover the system */
++	mips_reset_vec();
++}
++
++/*
++ * This table is indexed by bits 5..4 of the CLOCKCTL1 register
++ * to determine the predevisor value.
++ */
++static int clockctl1_predivide_table[4] __initdata = { 1, 2, 4, 5 };
++static int pllc_divide_table[5] __initdata = { 2, 3, 4, 6, 3 };
++
++static unsigned __init ar2315_sys_clk(u32 clock_ctl)
++{
++	unsigned int pllc_ctrl, cpu_div;
++	unsigned int pllc_out, refdiv, fdiv, divby2;
++	unsigned int clk_div;
++
++	pllc_ctrl = ar2315_rst_reg_read(AR2315_PLLC_CTL);
++	refdiv = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_REF_DIV);
++	refdiv = clockctl1_predivide_table[refdiv];
++	fdiv = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_FDBACK_DIV);
++	divby2 = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_ADD_FDBACK_DIV) + 1;
++	pllc_out = (40000000 / refdiv) * (2 * divby2) * fdiv;
++
++	/* clkm input selected */
++	switch (clock_ctl & AR2315_CPUCLK_CLK_SEL_M) {
++	case 0:
++	case 1:
++		clk_div = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_CLKM_DIV);
++		clk_div = pllc_divide_table[clk_div];
++		break;
++	case 2:
++		clk_div = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_CLKC_DIV);
++		clk_div = pllc_divide_table[clk_div];
++		break;
++	default:
++		pllc_out = 40000000;
++		clk_div = 1;
++		break;
++	}
++
++	cpu_div = ATH25_REG_MS(clock_ctl, AR2315_CPUCLK_CLK_DIV);
++	cpu_div = cpu_div * 2 ?: 1;
++
++	return pllc_out / (clk_div * cpu_div);
++}
++
++static inline unsigned ar2315_cpu_frequency(void)
++{
++	return ar2315_sys_clk(ar2315_rst_reg_read(AR2315_CPUCLK));
++}
++
++static inline unsigned ar2315_apb_frequency(void)
++{
++	return ar2315_sys_clk(ar2315_rst_reg_read(AR2315_AMBACLK));
++}
++
++void __init ar2315_plat_time_init(void)
++{
++	mips_hpt_frequency = ar2315_cpu_frequency() / 2;
++}
++
++void __init ar2315_plat_mem_setup(void)
++{
++	void __iomem *sdram_base;
++	u32 memsize, memcfg;
++	u32 devid;
++	u32 config;
++
++	/* Detect memory size */
++	sdram_base = ioremap_nocache(AR2315_SDRAMCTL_BASE,
++				     AR2315_SDRAMCTL_SIZE);
++	memcfg = __raw_readl(sdram_base + AR2315_MEM_CFG);
++	memsize   = 1 + ATH25_REG_MS(memcfg, AR2315_MEM_CFG_DATA_WIDTH);
++	memsize <<= 1 + ATH25_REG_MS(memcfg, AR2315_MEM_CFG_COL_WIDTH);
++	memsize <<= 1 + ATH25_REG_MS(memcfg, AR2315_MEM_CFG_ROW_WIDTH);
++	memsize <<= 3;
++	add_memory_region(0, memsize, BOOT_MEM_RAM);
++	iounmap(sdram_base);
++
++	ar2315_rst_base = ioremap_nocache(AR2315_RST_BASE, AR2315_RST_SIZE);
++
++	/* Detect the hardware based on the device ID */
++	devid = ar2315_rst_reg_read(AR2315_SREV) & AR2315_REV_CHIP;
++	switch (devid) {
++	case 0x91:	/* Need to check */
++		ath25_soc = ATH25_SOC_AR2318;
++		break;
++	case 0x90:
++		ath25_soc = ATH25_SOC_AR2317;
++		break;
++	case 0x87:
++		ath25_soc = ATH25_SOC_AR2316;
++		break;
++	case 0x86:
++	default:
++		ath25_soc = ATH25_SOC_AR2315;
++		break;
++	}
++	ath25_board.devid = devid;
++
++	/* Clear any lingering AHB errors */
++	config = read_c0_config();
++	write_c0_config(config & ~0x3);
++	ar2315_rst_reg_write(AR2315_AHB_ERR0, AR2315_AHB_ERROR_DET);
++	ar2315_rst_reg_read(AR2315_AHB_ERR1);
++	ar2315_rst_reg_write(AR2315_WDT_CTRL, AR2315_WDT_CTRL_IGNORE);
++
++	_machine_restart = ar2315_restart;
++}
++
++void __init ar2315_arch_init(void)
++{
++	unsigned irq = irq_create_mapping(ar2315_misc_irq_domain,
++					  AR2315_MISC_IRQ_UART0);
++
++	ath25_serial_setup(AR2315_UART0_BASE, irq, ar2315_apb_frequency());
++}
+--- /dev/null
++++ b/arch/mips/ath25/ar2315.h
+@@ -0,0 +1,22 @@
++#ifndef __AR2315_H
++#define __AR2315_H
++
++#ifdef CONFIG_SOC_AR2315
++
++void ar2315_arch_init_irq(void);
++void ar2315_init_devices(void);
++void ar2315_plat_time_init(void);
++void ar2315_plat_mem_setup(void);
++void ar2315_arch_init(void);
++
++#else
++
++static inline void ar2315_arch_init_irq(void) {}
++static inline void ar2315_init_devices(void) {}
++static inline void ar2315_plat_time_init(void) {}
++static inline void ar2315_plat_mem_setup(void) {}
++static inline void ar2315_arch_init(void) {}
++
++#endif
++
++#endif	/* __AR2315_H */
+--- /dev/null
++++ b/arch/mips/ath25/ar5312.h
+@@ -0,0 +1,22 @@
++#ifndef __AR5312_H
++#define __AR5312_H
++
++#ifdef CONFIG_SOC_AR5312
++
++void ar5312_arch_init_irq(void);
++void ar5312_init_devices(void);
++void ar5312_plat_time_init(void);
++void ar5312_plat_mem_setup(void);
++void ar5312_arch_init(void);
++
++#else
++
++static inline void ar5312_arch_init_irq(void) {}
++static inline void ar5312_init_devices(void) {}
++static inline void ar5312_plat_time_init(void) {}
++static inline void ar5312_plat_mem_setup(void) {}
++static inline void ar5312_arch_init(void) {}
++
++#endif
++
++#endif	/* __AR5312_H */
+--- /dev/null
++++ b/arch/mips/ath25/devices.h
+@@ -0,0 +1,43 @@
++#ifndef __ATH25_DEVICES_H
++#define __ATH25_DEVICES_H
++
++#include <linux/cpu.h>
++
++#define ATH25_REG_MS(_val, _field)	(((_val) & _field##_M) >> _field##_S)
++
++#define ATH25_IRQ_CPU_CLOCK	(MIPS_CPU_IRQ_BASE + 7)	/* C0_CAUSE: 0x8000 */
++
++enum ath25_soc_type {
++	/* handled by ar5312.c */
++	ATH25_SOC_AR2312,
++	ATH25_SOC_AR2313,
++	ATH25_SOC_AR5312,
++
++	/* handled by ar2315.c */
++	ATH25_SOC_AR2315,
++	ATH25_SOC_AR2316,
++	ATH25_SOC_AR2317,
++	ATH25_SOC_AR2318,
++
++	ATH25_SOC_UNKNOWN
++};
++
++extern enum ath25_soc_type ath25_soc;
++extern struct ar231x_board_config ath25_board;
++extern void (*ath25_irq_dispatch)(void);
++
++int ath25_find_config(phys_addr_t offset, unsigned long size);
++void ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk);
++int ath25_add_wmac(int nr, u32 base, int irq);
++
++static inline bool is_ar2315(void)
++{
++	return (current_cpu_data.cputype == CPU_4KEC);
++}
++
++static inline bool is_ar5312(void)
++{
++	return !is_ar2315();
++}
++
++#endif
+--- /dev/null
++++ b/arch/mips/ath25/devices.c
+@@ -0,0 +1,125 @@
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/serial_8250.h>
++#include <linux/platform_device.h>
++#include <asm/bootinfo.h>
++
++#include <ath25_platform.h>
++#include "devices.h"
++#include "ar5312.h"
++#include "ar2315.h"
++
++struct ar231x_board_config ath25_board;
++enum ath25_soc_type ath25_soc = ATH25_SOC_UNKNOWN;
++
++static struct resource ath25_wmac0_res[] = {
++	{
++		.name = "wmac0_membase",
++		.flags = IORESOURCE_MEM,
++	},
++	{
++		.name = "wmac0_irq",
++		.flags = IORESOURCE_IRQ,
++	}
++};
++
++static struct resource ath25_wmac1_res[] = {
++	{
++		.name = "wmac1_membase",
++		.flags = IORESOURCE_MEM,
++	},
++	{
++		.name = "wmac1_irq",
++		.flags = IORESOURCE_IRQ,
++	}
++};
++
++static struct platform_device ath25_wmac[] = {
++	{
++		.id = 0,
++		.name = "ar231x-wmac",
++		.resource = ath25_wmac0_res,
++		.num_resources = ARRAY_SIZE(ath25_wmac0_res),
++		.dev.platform_data = &ath25_board,
++	},
++	{
++		.id = 1,
++		.name = "ar231x-wmac",
++		.resource = ath25_wmac1_res,
++		.num_resources = ARRAY_SIZE(ath25_wmac1_res),
++		.dev.platform_data = &ath25_board,
++	},
++};
++
++static const char * const soc_type_strings[] = {
++	[ATH25_SOC_AR5312] = "Atheros AR5312",
++	[ATH25_SOC_AR2312] = "Atheros AR2312",
++	[ATH25_SOC_AR2313] = "Atheros AR2313",
++	[ATH25_SOC_AR2315] = "Atheros AR2315",
++	[ATH25_SOC_AR2316] = "Atheros AR2316",
++	[ATH25_SOC_AR2317] = "Atheros AR2317",
++	[ATH25_SOC_AR2318] = "Atheros AR2318",
++	[ATH25_SOC_UNKNOWN] = "Atheros (unknown)",
++};
++
++const char *get_system_type(void)
++{
++	if ((ath25_soc >= ARRAY_SIZE(soc_type_strings)) ||
++	    !soc_type_strings[ath25_soc])
++		return soc_type_strings[ATH25_SOC_UNKNOWN];
++	return soc_type_strings[ath25_soc];
++}
++
++void __init ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk)
++{
++	struct uart_port s;
++
++	memset(&s, 0, sizeof(s));
++
++	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP;
++	s.iotype = UPIO_MEM32;
++	s.irq = irq;
++	s.regshift = 2;
++	s.mapbase = mapbase;
++	s.uartclk = uartclk;
++
++	early_serial_setup(&s);
++}
++
++int __init ath25_add_wmac(int nr, u32 base, int irq)
++{
++	struct resource *res;
++
++	ath25_wmac[nr].dev.platform_data = &ath25_board;
++	res = &ath25_wmac[nr].resource[0];
++	res->start = base;
++	res->end = base + 0x10000 - 1;
++	res++;
++	res->start = irq;
++	res->end = irq;
++	return platform_device_register(&ath25_wmac[nr]);
++}
++
++static int __init ath25_register_devices(void)
++{
++	if (is_ar5312())
++		ar5312_init_devices();
++	else
++		ar2315_init_devices();
++
++	return 0;
++}
++
++device_initcall(ath25_register_devices);
++
++static int __init ath25_arch_init(void)
++{
++	if (is_ar5312())
++		ar5312_arch_init();
++	else
++		ar2315_arch_init();
++
++	return 0;
++}
++
++arch_initcall(ath25_arch_init);