--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
-@@ -60,6 +60,18 @@ config BCM47XX
+@@ -60,6 +60,19 @@ config BCM47XX
help
Support for BCM47XX based boards
+config ATHEROS
-+ bool "Atheros SoC support (EXPERIMENTAL)"
-+ depends on EXPERIMENTAL
-+ select DMA_NONCOHERENT
++ bool "Atheros 231x/531x SoC support"
+ select CEVT_R4K
+ select CSRC_R4K
++ select DMA_NONCOHERENT
+ select IRQ_CPU
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select GENERIC_GPIO
++ help
++ Support for AR231x and AR531x based boards
+
config MIPS_COBALT
bool "Cobalt Server"
select CEVT_R4K
-@@ -597,6 +609,7 @@ config WR_PPMC
+@@ -597,6 +610,7 @@ config WR_PPMC
endchoice
-+source "arch/mips/atheros/Kconfig"
++source "arch/mips/ar231x/Kconfig"
source "arch/mips/alchemy/Kconfig"
source "arch/mips/basler/excite/Kconfig"
source "arch/mips/emma/Kconfig"
#
+# Atheros AR5312/AR2312 WiSoC
+#
-+core-$(CONFIG_ATHEROS) += arch/mips/atheros/
-+cflags-$(CONFIG_ATHEROS) += -I$(srctree)/arch/mips/include/asm/mach-atheros
++core-$(CONFIG_ATHEROS) += arch/mips/ar231x/
++cflags-$(CONFIG_ATHEROS) += -I$(srctree)/arch/mips/include/asm/mach-ar231x
+load-$(CONFIG_ATHEROS) += 0xffffffff80041000
+
+#
# Cobalt Server
#
core-$(CONFIG_MIPS_COBALT) += arch/mips/cobalt/
---- a/arch/mips/include/asm/bootinfo.h
-+++ b/arch/mips/include/asm/bootinfo.h
-@@ -57,6 +57,18 @@
- #define MACH_MIKROTIK_RB532 0 /* Mikrotik RouterBoard 532 */
- #define MACH_MIKROTIK_RB532A 1 /* Mikrotik RouterBoard 532A */
-
+--- /dev/null
++++ b/arch/mips/ar231x/Kconfig
+@@ -0,0 +1,27 @@
++config ATHEROS_AR5312
++ bool "Atheros 5312/2312+ support"
++ depends on ATHEROS
++ default y
++
++config ATHEROS_AR2315
++ bool "Atheros 2315+ support"
++ depends on ATHEROS
++ select DMA_NONCOHERENT
++ select CEVT_R4K
++ select CSRC_R4K
++ select IRQ_CPU
++ select SYS_HAS_CPU_MIPS32_R1
++ select SYS_SUPPORTS_32BIT_KERNEL
++ select SYS_SUPPORTS_BIG_ENDIAN
++ select GENERIC_GPIO
++ default y
++
++config ATHEROS_AR2315_PCI
++ bool "PCI support"
++ depends on ATHEROS_AR2315
++ select HW_HAS_PCI
++ select PCI
++ select USB_ARCH_HAS_HCD
++ select USB_ARCH_HAS_OHCI
++ select USB_ARCH_HAS_EHCI
++ default y
+--- /dev/null
++++ b/arch/mips/ar231x/Makefile
+@@ -0,0 +1,14 @@
++#
++# 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-$(CONFIG_ATHEROS_AR5312) += ar5312.o
++obj-$(CONFIG_ATHEROS_AR2315) += ar2315.o
++obj-$(CONFIG_ATHEROS_AR2315_PCI) += pci.o
+--- /dev/null
++++ b/arch/mips/ar231x/board.c
+@@ -0,0 +1,247 @@
+/*
-+ * Valid machtype for group ATHEROS
++ * 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>
+ */
-+#define MACH_GROUP_ATHEROS 26
-+#define MACH_ATHEROS_AR5312 0
-+#define MACH_ATHEROS_AR2312 1
-+#define MACH_ATHEROS_AR2313 2
-+#define MACH_ATHEROS_AR2315 3
-+#define MACH_ATHEROS_AR2316 4
-+#define MACH_ATHEROS_AR2317 5
-+#define MACH_ATHEROS_AR2318 6
+
- #define CL_SIZE COMMAND_LINE_SIZE
-
- extern char *system_type;
++#include <linux/autoconf.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/string.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/random.h>
++#include <linux/etherdevice.h>
++#include <asm/irq_cpu.h>
++#include <asm/reboot.h>
++#include <asm/io.h>
++
++#include <ar231x_platform.h>
++#include "devices.h"
++#include "ar5312.h"
++#include "ar2315.h"
++
++void (*ar231x_irq_dispatch)(void);
++
++static inline bool
++check_radio_magic(u8 *addr)
++{
++ addr += 0x7a; /* offset for flash magic */
++ if ((addr[0] == 0x5a) && (addr[1] == 0xa5)) {
++ return 1;
++ }
++ return 0;
++}
++
++static inline bool
++check_board_data(u8 *flash_limit, u8 *addr, bool broken)
++{
++ /* config magic found */
++ if (*((u32 *)addr) == AR531X_BD_MAGIC)
++ return 1;
++
++ if (!broken)
++ return 0;
++
++ if (check_radio_magic(addr + 0xf8))
++ ar231x_board.radio = addr + 0xf8;
++ if ((addr < flash_limit + 0x10000) &&
++ check_radio_magic(addr + 0x10000))
++ ar231x_board.radio = addr + 0x10000;
++
++ if (ar231x_board.radio) {
++ /* broken board data detected, use radio data to find the offset,
++ * user will fix this */
++ return 1;
++ }
++ return 0;
++}
++
++static u8 *
++find_board_config(u8 *flash_limit, bool broken)
++{
++ u8 *addr;
++ int found = 0;
++
++ for (addr = flash_limit - 0x1000;
++ addr >= flash_limit - 0x30000;
++ addr -= 0x1000) {
++
++ if (check_board_data(flash_limit, addr, broken)) {
++ found = 1;
++ break;
++ }
++ }
++
++ if (!found)
++ addr = NULL;
++
++ return addr;
++}
++
++static u8 *
++find_radio_config(u8 *flash_limit, u8 *board_config)
++{
++ int found;
++ u8 *radio_config;
++
++ /*
++ * 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.
++ */
++ found = 0;
++ for (radio_config = board_config + 0x1000;
++ (radio_config < flash_limit);
++ radio_config += 0x1000) {
++ if ((*(u32 *)radio_config != 0xffffffff) &&
++ check_radio_magic(radio_config)) {
++ found = 1;
++ break;
++ }
++ }
++
++ /* AR2316 relocates radio config to new location */
++ if (!found) {
++ for (radio_config = board_config + 0xf8;
++ (radio_config < flash_limit - 0x1000 + 0xf8);
++ radio_config += 0x1000) {
++ if ((*(u32 *)radio_config != 0xffffffff) &&
++ check_radio_magic(radio_config)) {
++ found = 1;
++ break;
++ }
++ }
++ }
++
++ if (!found) {
++ printk("Could not find Radio Configuration data\n");
++ radio_config = 0;
++ }
++
++ return (u8 *) radio_config;
++}
++
++int __init
++ar231x_find_config(u8 *flash_limit)
++{
++ struct ar231x_boarddata *config;
++ unsigned int rcfg_size;
++ int broken_boarddata = 0;
++ u8 *bcfg, *rcfg;
++ u8 *board_data;
++ u8 *radio_data;
++ u32 offset;
++
++ ar231x_board.config = NULL;
++ ar231x_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) {
++ printk(KERN_WARNING "WARNING: No board configuration data found!\n");
++ return -ENODEV;
++ }
++
++ board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
++ ar231x_board.config = (struct ar231x_boarddata *) board_data;
++ memcpy(board_data, bcfg, 0x100);
++ if (broken_boarddata) {
++ printk(KERN_WARNING "WARNING: broken board data detected\n");
++ config = ar231x_board.config;
++ if (!memcmp(config->enet0_mac, "\x00\x00\x00\x00\x00\x00", 6)) {
++ printk(KERN_INFO "Fixing up empty mac addresses\n");
++ 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 */
++
++ if (ar231x_board.radio)
++ rcfg = (u8 *) ar231x_board.radio;
++ else
++ rcfg = find_radio_config(flash_limit, bcfg);
++
++ if (!rcfg)
++ return -ENODEV;
++
++ radio_data = board_data + 0x100 + ((rcfg - bcfg) & 0xfff);
++ ar231x_board.radio = radio_data;
++ offset = radio_data - board_data;
++ printk(KERN_INFO "Radio config found at offset 0x%x(0x%x)\n", rcfg - bcfg, offset);
++ rcfg_size = BOARD_CONFIG_BUFSZ - offset;
++ memcpy(radio_data, rcfg, rcfg_size);
++
++ return 0;
++}
++
++static void
++ar231x_halt(void)
++{
++ local_irq_disable();
++ while (1);
++}
++
++void __init
++plat_mem_setup(void)
++{
++ _machine_halt = ar231x_halt;
++ pm_power_off = ar231x_halt;
++
++ ar5312_plat_setup();
++ ar2315_plat_setup();
++
++ /* Disable data watchpoints */
++ write_c0_watchlo0(0);
++}
++
++
++asmlinkage void
++plat_irq_dispatch(void)
++{
++ ar231x_irq_dispatch();
++}
++
++void __init
++plat_time_init(void)
++{
++ ar5312_time_init();
++ ar2315_time_init();
++}
++
++unsigned int __cpuinit
++get_c0_compare_irq(void)
++{
++ return CP0_LEGACY_COMPARE_IRQ;
++}
++
++void __init
++arch_init_irq(void)
++{
++ clear_c0_status(ST0_IM);
++ mips_cpu_irq_init();
++
++ /* Initialize interrupt controllers */
++ ar5312_irq_init();
++ ar2315_irq_init();
++}
++
++
+--- /dev/null
++++ b/arch/mips/ar231x/prom.c
+@@ -0,0 +1,37 @@
++/*
++ * 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 ar531x
++ */
++
++#include <linux/init.h>
++#include <linux/autoconf.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/bootmem.h>
++
++#include <asm/bootinfo.h>
++#include <asm/addrspace.h>
++#include "ar5312.h"
++#include "ar2315.h"
++
++void __init prom_init(void)
++{
++ ar5312_prom_init();
++ ar2315_prom_init();
++}
++
++void __init prom_free_prom_memory(void)
++{
++}
+--- /dev/null
++++ b/arch/mips/ar231x/reset.c
+@@ -0,0 +1,162 @@
++#include <linux/module.h>
++#include <linux/timer.h>
++#include <linux/interrupt.h>
++#include <linux/kobject.h>
++#include <linux/workqueue.h>
++#include <linux/skbuff.h>
++#include <linux/netlink.h>
++#include <net/sock.h>
++#include <asm/uaccess.h>
++#include <ar231x.h>
++
++#define AR531X_RESET_GPIO_IRQ (AR531X_GPIO_IRQ(bcfg->resetConfigGpio))
++
++struct event_t {
++ struct work_struct wq;
++ int set;
++ unsigned long jiffies;
++};
++
++static struct ar231x_boarddata *bcfg;
++static struct timer_list rst_button_timer;
++
++extern struct sock *uevent_sock;
++extern u64 uevent_next_seqnum(void);
++static unsigned long seen;
++
++static inline void add_msg(struct sk_buff *skb, char *msg)
++{
++ char *scratch;
++ scratch = skb_put(skb, strlen(msg) + 1);
++ sprintf(scratch, msg);
++}
++
++static void hotplug_button(struct work_struct *wq)
++{
++ struct sk_buff *skb;
++ struct event_t *event;
++ size_t len;
++ char *scratch, *s;
++ char buf[128];
++
++ event = container_of(wq, struct event_t, wq);
++ if (!uevent_sock)
++ goto done;
++
++ /* allocate message with the maximum possible size */
++ s = event->set ? "pressed" : "released";
++ len = strlen(s) + 2;
++ skb = alloc_skb(len + 2048, GFP_KERNEL);
++ if (!skb)
++ goto done;
++
++ /* add header */
++ scratch = skb_put(skb, len);
++ sprintf(scratch, "%s@",s);
++
++ /* copy keys to our continuous event payload buffer */
++ add_msg(skb, "HOME=/");
++ add_msg(skb, "PATH=/sbin:/bin:/usr/sbin:/usr/bin");
++ add_msg(skb, "SUBSYSTEM=button");
++ add_msg(skb, "BUTTON=reset");
++ add_msg(skb, (event->set ? "ACTION=pressed" : "ACTION=released"));
++ sprintf(buf, "SEEN=%ld", (event->jiffies - seen)/HZ);
++ add_msg(skb, buf);
++ snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
++ add_msg(skb, buf);
++
++ NETLINK_CB(skb).dst_group = 1;
++ netlink_broadcast(uevent_sock, skb, 0, 1, GFP_KERNEL);
++
++done:
++ kfree(event);
++}
++
++static int no_release_workaround = 1;
++
++static void
++reset_button_poll(unsigned long unused)
++{
++ struct event_t *event;
++ int gpio = ~0;
++
++ if(!no_release_workaround)
++ return;
++
++ DO_AR2315(gpio = sysRegRead(AR2315_GPIO_DI);)
++ gpio &= 1 << (AR531X_RESET_GPIO_IRQ - AR531X_GPIO_IRQ_BASE);
++ if(gpio)
++ {
++ rst_button_timer.expires = jiffies + (HZ / 4);
++ add_timer(&rst_button_timer);
++ } else {
++ event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
++ if (!event)
++ {
++ printk("Could not alloc hotplug event\n");
++ return;
++ }
++ event->set = 0;
++ event->jiffies = jiffies;
++ INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
++ schedule_work(&event->wq);
++ }
++}
++
++static irqreturn_t button_handler(int irq, void *dev_id)
++{
++ static int pressed = 0;
++ struct event_t *event;
++ u32 gpio = ~0;
++
++ event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
++ if (!event)
++ return IRQ_NONE;
++
++ pressed = !pressed;
++
++ DO_AR2315(gpio = sysRegRead(AR2315_GPIO_DI);)
++ gpio &= 1 << (irq - AR531X_GPIO_IRQ_BASE);
++
++ event->set = gpio;
++ if(!event->set)
++ no_release_workaround = 0;
++
++ event->jiffies = jiffies;
++
++ INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
++ schedule_work(&event->wq);
++
++ seen = jiffies;
++ if(event->set && no_release_workaround)
++ mod_timer(&rst_button_timer, jiffies + (HZ / 4));
++
++ return IRQ_HANDLED;
++}
++
++void ar231x_disable_reset_button(void)
++{
++ disable_irq(AR531X_RESET_GPIO_IRQ);
++}
++
++EXPORT_SYMBOL(ar231x_disable_reset_button);
++
++int __init ar231x_init_reset(void)
++{
++ bcfg = (struct ar231x_boarddata *) board_config;
++
++ seen = jiffies;
++
++ init_timer(&rst_button_timer);
++ rst_button_timer.function = reset_button_poll;
++ rst_button_timer.expires = jiffies + HZ / 50;
++ add_timer(&rst_button_timer);
++
++ request_irq(AR531X_RESET_GPIO_IRQ, &button_handler, IRQF_SAMPLE_RANDOM, "ar231x_reset", NULL);
++
++ return 0;
++}
++
++
++
++module_init(ar231x_init_reset);
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ar231x/ar231x_platform.h
+@@ -0,0 +1,83 @@
++#ifndef __AR531X_PLATFORM_H
++#define __AR531X_PLATFORM_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 ar231x_boarddata {
++ u32 magic; /* board data is valid */
++#define AR531X_BD_MAGIC 0x35333131 /* "5311", for all 531x platforms */
++ u16 cksum; /* checksum (starting with BD_REV 2) */
++ u16 rev; /* revision of this struct */
++#define BD_REV 4
++ char boardName[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 @ memCap 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 resetConfigGpio; /* Reset factory GPIO pin */
++ u16 sysLedGpio; /* System LED GPIO pin */
++
++ u32 cpuFreq; /* CPU core frequency in Hz */
++ u32 sysFreq; /* System frequency in Hz */
++ u32 cntFreq; /* Calculated C0_COUNT frequency */
++
++ u8 wlan0_mac[6];
++ u8 enet0_mac[6];
++ u8 enet1_mac[6];
++
++ u16 pciId; /* Pseudo PCIID for common code */
++ u16 memCap; /* cap bank1 in MB */
++
++ /* version 3 */
++ u8 wlan1_mac[6]; /* (ar5212) */
++};
++
++#define BOARD_CONFIG_BUFSZ 0x1000
++
++/*
++ * Platform device information for the Wireless MAC
++ */
++struct ar231x_board_config {
++ u16 devid;
++
++ /* board config data */
++ struct ar231x_boarddata *config;
++
++ /* radio calibration data */
++ const char *radio;
++};
++
++/*
++ * Platform device information for the Ethernet MAC
++ */
++struct ar231x_eth {
++ u32 reset_base;
++ u32 reset_mac;
++ u32 reset_phy;
++ u32 phy_base;
++ struct ar231x_board_config *config;
++ char *macaddr;
++};
++
++#endif /* __AR531X_PLATFORM_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h
+@@ -0,0 +1,84 @@
++/*
++ * Atheros 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_ATHEROS_CPU_FEATURE_OVERRIDES_H
++#define __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H
++
++/*
++ * The ATHEROS 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_watch ? */
++/* #define cpu_has_divec ? */
++/* #define cpu_has_vce ? */
++/* #define cpu_has_cache_cdex_p ? */
++/* #define cpu_has_cache_cdex_s ? */
++/* #define cpu_has_prefetch ? */
++/* #define cpu_has_mcheck ? */
++#define cpu_has_ejtag 1
++
++#if !defined(CONFIG_ATHEROS_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_vtag_icache ? */
++/* #define cpu_has_dc_aliases ? */
++/* #define cpu_has_ic_fills_f_dc ? */
++/* #define cpu_has_pindexed_dcache ? */
++
++/* #define cpu_icache_snoops_remote_store ? */
++
++#define cpu_has_mips32r1 1
++
++#if !defined(CONFIG_ATHEROS_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_nofpuex ? */
++#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
++
++/* #define cpu_has_inclusive_pcaches ? */
++
++/* #define cpu_dcache_line_size() ? */
++/* #define cpu_icache_line_size() ? */
++
++#endif /* __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ar231x/dma-coherence.h
+@@ -0,0 +1,41 @@
++/*
++ * 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_GENERIC_DMA_COHERENCE_H
++#define __ASM_MACH_GENERIC_DMA_COHERENCE_H
++
++#define PCI_DMA_OFFSET 0x20000000
++
++struct device;
++
++static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
++{
++ return virt_to_phys(addr) + (dev != NULL ? PCI_DMA_OFFSET : 0);
++}
++
++static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
++{
++ return page_to_phys(page) + (dev != NULL ? PCI_DMA_OFFSET : 0);
++}
++
++static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
++{
++ return (dma_addr > PCI_DMA_OFFSET ? dma_addr - PCI_DMA_OFFSET : dma_addr);
++}
++
++static void plat_unmap_dma_mem(dma_addr_t dma_addr)
++{
++}
++
++static inline int plat_device_is_coherent(struct device *dev)
++{
++ return 0;
++}
++
++#endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ar231x/gpio.h
+@@ -0,0 +1,79 @@
++#ifndef _ATHEROS_GPIO_H_
++#define _ATHEROS_GPIO_H_
++
++#include <ar231x.h>
++
++struct ar231x_gpiodev {
++ u32 valid_mask;
++ u32 (*get_output)(void);
++ u32 (*set_output)(u32 mask, u32 val);
++ u32 (*get)(void);
++ u32 (*set)(u32 mask, u32 val);
++};
++
++extern const struct ar231x_gpiodev *ar231x_gpiodev;
++
++/*
++ * Wrappers for the generic GPIO layer
++ */
++
++static inline int gpio_direction_input(unsigned gpio) {
++ u32 mask = 1 << gpio;
++
++ if (!(ar231x_gpiodev->valid_mask & mask))
++ return -ENXIO;
++
++ ar231x_gpiodev->set_output(mask, 0);
++ return 0;
++}
++
++static inline void gpio_set_value(unsigned gpio, int value) {
++ u32 mask = 1 << gpio;
++
++ if (!(ar231x_gpiodev->valid_mask & mask))
++ return;
++
++ ar231x_gpiodev->set(mask, (!!value) * mask);
++}
++
++static inline int gpio_direction_output(unsigned gpio, int value) {
++ u32 mask = 1 << gpio;
++
++ if (!(ar231x_gpiodev->valid_mask & mask))
++ return -ENXIO;
++
++ ar231x_gpiodev->set_output(mask, mask);
++ ar231x_gpiodev->set(mask, (!!value) * mask);
++ return 0;
++}
++
++/* Reads the gpio pin. Unchecked function */
++static inline int gpio_get_value(unsigned gpio) {
++ u32 mask = 1 << gpio;
++
++ if (!(ar231x_gpiodev->valid_mask & mask))
++ return 0;
++
++ return !!(ar231x_gpiodev->get() & mask);
++}
++
++static inline int gpio_request(unsigned gpio, const char *label) {
++ return 0;
++}
++
++static inline void gpio_free(unsigned gpio) {
++}
++
++/* Returns IRQ to attach for gpio. Unchecked function */
++static inline int gpio_to_irq(unsigned gpio) {
++ return AR531X_GPIO_IRQ(gpio);
++}
++
++/* Returns gpio for IRQ attached. Unchecked function */
++static inline int irq_to_gpio(unsigned irq) {
++ return (irq - (AR531X_GPIO_IRQ(0)));
++}
++
++#include <asm-generic/gpio.h> /* cansleep wrappers */
++
++#endif
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ar231x/reset.h
+@@ -0,0 +1,6 @@
++#ifndef __AR531X_RESET_H
++#define __AR531X_RESET_H
++
++void ar531x_disable_reset_button(void);
++
++#endif /* __AR531X_RESET_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ar231x/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_MIPS_MACH_ATHEROS_WAR_H
++#define __ASM_MIPS_MACH_ATHEROS_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_MIPS_MACH_ATHEROS_WAR_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ar231x/ar2315_regs.h
+@@ -0,0 +1,580 @@
++/*
++ * 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 __AR2315_REG_H
++#define __AR2315_REG_H
++
++/*
++ * IRQs
++ */
++#define AR2315_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
++#define AR2315_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
++#define AR2315_IRQ_ENET0_INTRS 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 */
++
++/*
++ * Address map
++ */
++#define AR2315_SPI_READ 0x08000000 /* SPI FLASH */
++#define AR2315_WLAN0 0xB0000000 /* Wireless MMR */
++#define AR2315_PCI 0xB0100000 /* PCI MMR */
++#define AR2315_SDRAMCTL 0xB0300000 /* SDRAM MMR */
++#define AR2315_LOCAL 0xB0400000 /* LOCAL BUS MMR */
++#define AR2315_ENET0 0xB0500000 /* ETHERNET MMR */
++#define AR2315_DSLBASE 0xB1000000 /* RESET CONTROL MMR */
++#define AR2315_UART0 0xB1100003 /* UART MMR */
++#define AR2315_SPI 0xB1300000 /* SPI FLASH MMR */
++#define AR2315_PCIEXT 0x80000000 /* pci external */
++
++/*
++ * Reset Register
++ */
++#define AR2315_COLD_RESET (AR2315_DSLBASE + 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
++
++
++#define AR2315_RESET (AR2315_DSLBASE + 0x0004)
++
++#define AR2315_RESET_WARM_WLAN0_MAC 0x00000001 /* warm reset WLAN0 MAC */
++#define AR2315_RESET_WARM_WLAN0_BB 0x00000002 /* warm reset WLAN0 BaseBand */
++#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 memory controller */
++#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 interface */
++#define AR2315_RESET_UART0 0x00000100 /* warm reset UART0 */
++#define AR2315_RESET_IR_RSVD 0x00000200 /* warm reset IR interface */
++#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 (AR2315_DSLBASE + 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 */
++#define AR2315_ARB_PCI 0x00000010 /* PCI */
++#define AR2315_ARB_ETHERNET 0x00000020 /* Ethernet */
++#define AR2315_ARB_RETRY 0x00000100 /* retry policy, debug only */
++
++/*
++ * Config Register
++ */
++#define AR2315_ENDIAN_CTL (AR2315_DSLBASE + 0x000c)
++
++#define AR2315_CONFIG_AHB 0x00000001 /* EC - AHB bridge endianess */
++#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 /* Memory controller endianess */
++#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_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
++#define AR2315_CONFIG_BIG 0x00000400
++
++
++/*
++ * NMI control
++ */
++#define AR2315_NMI_CTL (AR2315_DSLBASE + 0x0010)
++
++#define AR2315_NMI_EN 1
++
++/*
++ * Revision Register - Initial value is 0x3010 (WMAC 3.0, AR531X 1.0).
++ */
++#define AR2315_SREV (AR2315_DSLBASE + 0x0014)
++
++#define AR2315_REV_MAJ 0x00f0
++#define AR2315_REV_MAJ_S 4
++#define AR2315_REV_MIN 0x000f
++#define AR2315_REV_MIN_S 0
++#define AR2315_REV_CHIP (AR2315_REV_MAJ|AR2315_REV_MIN)
++
++/*
++ * Interface Enable
++ */
++#define AR2315_IF_CTL (AR2315_DSLBASE + 0x0018)
++
++#define AR2315_IF_MASK 0x00000007
++#define AR2315_IF_DISABLED 0
++#define AR2315_IF_PCI 1
++#define AR2315_IF_TS_LOCAL 2
++#define AR2315_IF_ALL 3 /* only for emulation with separate pins */
++#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 (AR2315_DSLBASE + 0x0020)
++#define AR2315_IMR (AR2315_DSLBASE + 0x0024)
++#define AR2315_GISR (AR2315_DSLBASE + 0x0028)
++
++#define AR2315_ISR_UART0 0x0001 /* high speed UART */
++#define AR2315_ISR_I2C_RSVD 0x0002 /* I2C bus */
++#define AR2315_ISR_SPI 0x0004 /* SPI bus */
++#define AR2315_ISR_AHB 0x0008 /* AHB error */
++#define AR2315_ISR_APB 0x0010 /* APB error */
++#define AR2315_ISR_TIMER 0x0020 /* timer */
++#define AR2315_ISR_GPIO 0x0040 /* GPIO */
++#define AR2315_ISR_WD 0x0080 /* watchdog */
++#define AR2315_ISR_IR_RSVD 0x0100 /* IR */
++
++#define AR2315_GISR_MISC 0x0001
++#define AR2315_GISR_WLAN0 0x0002
++#define AR2315_GISR_MPEGTS_RSVD 0x0004
++#define AR2315_GISR_LOCALPCI 0x0008
++#define AR2315_GISR_WMACPOLL 0x0010
++#define AR2315_GISR_TIMER 0x0020
++#define AR2315_GISR_ETHERNET 0x0040
++
++/*
++ * Interrupt routing from IO to the processor IP bits
++ * Define our inter mask and level
++ */
++#define AR2315_INTR_MISCIO SR_IBIT3
++#define AR2315_INTR_WLAN0 SR_IBIT4
++#define AR2315_INTR_ENET0 SR_IBIT5
++#define AR2315_INTR_LOCALPCI SR_IBIT6
++#define AR2315_INTR_WMACPOLL SR_IBIT7
++#define AR2315_INTR_COMPARE SR_IBIT8
++
++/*
++ * Timers
++ */
++#define AR2315_TIMER (AR2315_DSLBASE + 0x0030)
++#define AR2315_RELOAD (AR2315_DSLBASE + 0x0034)
++#define AR2315_WD (AR2315_DSLBASE + 0x0038)
++#define AR2315_WDC (AR2315_DSLBASE + 0x003c)
++
++#define AR2315_WDC_IGNORE_EXPIRATION 0x00000000
++#define AR2315_WDC_NMI 0x00000001 /* NMI on watchdog */
++#define AR2315_WDC_RESET 0x00000002 /* reset on watchdog */
++
++/*
++ * CPU Performance Counters
++ */
++#define AR2315_PERFCNT0 (AR2315_DSLBASE + 0x0048)
++#define AR2315_PERFCNT1 (AR2315_DSLBASE + 0x004c)
++
++#define AR2315_PERF0_DATAHIT 0x0001 /* Count Data Cache Hits */
++#define AR2315_PERF0_DATAMISS 0x0002 /* Count Data Cache Misses */
++#define AR2315_PERF0_INSTHIT 0x0004 /* Count Instruction Cache Hits */
++#define AR2315_PERF0_INSTMISS 0x0008 /* Count Instruction Cache Misses */
++#define AR2315_PERF0_ACTIVE 0x0010 /* Count Active Processor Cycles */
++#define AR2315_PERF0_WBHIT 0x0020 /* Count CPU Write Buffer Hits */
++#define AR2315_PERF0_WBMISS 0x0040 /* Count CPU Write Buffer Misses */
++
++#define AR2315_PERF1_EB_ARDY 0x0001 /* Count EB_ARdy signal */
++#define AR2315_PERF1_EB_AVALID 0x0002 /* Count EB_AValid signal */
++#define AR2315_PERF1_EB_WDRDY 0x0004 /* Count EB_WDRdy signal */
++#define AR2315_PERF1_EB_RDVAL 0x0008 /* Count EB_RdVal signal */
++#define AR2315_PERF1_VRADDR 0x0010 /* Count valid read address cycles */
++#define AR2315_PERF1_VWADDR 0x0020 /* Count valid write address cycles */
++#define AR2315_PERF1_VWDATA 0x0040 /* Count valid write data cycles */
++
++/*
++ * AHB Error Reporting.
++ */
++#define AR2315_AHB_ERR0 (AR2315_DSLBASE + 0x0050) /* error */
++#define AR2315_AHB_ERR1 (AR2315_DSLBASE + 0x0054) /* haddr */
++#define AR2315_AHB_ERR2 (AR2315_DSLBASE + 0x0058) /* hwdata */
++#define AR2315_AHB_ERR3 (AR2315_DSLBASE + 0x005c) /* hrdata */
++#define AR2315_AHB_ERR4 (AR2315_DSLBASE + 0x0060) /* status */
++
++#define AHB_ERROR_DET 1 /* AHB Error has been detected, */
++ /* write 1 to clear all bits in ERR0 */
++#define AHB_ERROR_OVR 2 /* AHB Error overflow has been detected */
++#define 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 (AR2315_DSLBASE + 0x0064)
++#define AR2315_PLLV_CTL (AR2315_DSLBASE + 0x0068)
++#define AR2315_CPUCLK (AR2315_DSLBASE + 0x006c)
++#define AR2315_AMBACLK (AR2315_DSLBASE + 0x0070)
++#define AR2315_SYNCCLK (AR2315_DSLBASE + 0x0074)
++#define AR2315_DSL_SLEEP_CTL (AR2315_DSLBASE + 0x0080)
++#define AR2315_DSL_SLEEP_DUR (AR2315_DSLBASE + 0x0084)
++
++/* PLLc Control fields */
++#define PLLC_REF_DIV_M 0x00000003
++#define PLLC_REF_DIV_S 0
++#define PLLC_FDBACK_DIV_M 0x0000007C
++#define PLLC_FDBACK_DIV_S 2
++#define PLLC_ADD_FDBACK_DIV_M 0x00000080
++#define PLLC_ADD_FDBACK_DIV_S 7
++#define PLLC_CLKC_DIV_M 0x0001c000
++#define PLLC_CLKC_DIV_S 14
++#define PLLC_CLKM_DIV_M 0x00700000
++#define PLLC_CLKM_DIV_S 20
++
++/* CPU CLK Control fields */
++#define CPUCLK_CLK_SEL_M 0x00000003
++#define CPUCLK_CLK_SEL_S 0
++#define CPUCLK_CLK_DIV_M 0x0000000c
++#define CPUCLK_CLK_DIV_S 2
++
++/* AMBA CLK Control fields */
++#define AMBACLK_CLK_SEL_M 0x00000003
++#define AMBACLK_CLK_SEL_S 0
++#define AMBACLK_CLK_DIV_M 0x0000000c
++#define AMBACLK_CLK_DIV_S 2
++
++/*
++ * GPIO
++ */
++#define AR2315_GPIO_DI (AR2315_DSLBASE + 0x0088)
++#define AR2315_GPIO_DO (AR2315_DSLBASE + 0x0090)
++#define AR2315_GPIO_CR (AR2315_DSLBASE + 0x0098)
++#define AR2315_GPIO_INT (AR2315_DSLBASE + 0x00a0)
++
++#define AR2315_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
++#define AR2315_GPIO_CR_O(x) (1 << (x)) /* output */
++#define AR2315_GPIO_CR_I(x) (0) /* input */
++
++#define AR2315_GPIO_INT_S(x) (x) /* interrupt enable */
++#define AR2315_GPIO_INT_M (0x3F) /* mask for int */
++#define AR2315_GPIO_INT_LVL(x) ((x) << 6) /* interrupt level */
++#define AR2315_GPIO_INT_LVL_M ((0x3) << 6) /* mask for int level */
++
++#define AR2315_GPIO_INT_MAX_Y 1 /* Maximum value of Y for AR5313_GPIO_INT_* macros */
++#define AR2315_GPIO_INT_LVL_OFF 0 /* Triggerring off */
++#define AR2315_GPIO_INT_LVL_LOW 1 /* Low Level Triggered */
++#define AR2315_GPIO_INT_LVL_HIGH 2 /* High Level Triggered */
++#define AR2315_GPIO_INT_LVL_EDGE 3 /* Edge Triggered */
++
++#define AR2315_RESET_GPIO 5
++#define AR2315_NUM_GPIO 22
++
++/*
++ * PCI Clock Control
++ */
++#define AR2315_PCICLK (AR2315_DSLBASE + 0x00a4)
++
++#define AR2315_PCICLK_INPUT_M 0x3
++#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 0xc
++#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 (AR2315_DSLBASE + 0x00b0)
++#define OCR_GPIO0_IRIN 0x0040
++#define OCR_GPIO1_IROUT 0x0080
++#define OCR_GPIO3_RXCLR 0x0200
++
++/*
++ * General Clock Control
++ */
++
++#define AR2315_MISCCLK (AR2315_DSLBASE + 0x00b4)
++#define MISCCLK_PLLBYPASS_EN 0x00000001
++#define MISCCLK_PROCREFCLK 0x00000002
++
++/*
++ * SDRAM Controller
++ * - No read or write buffers are included.
++ */
++#define AR2315_MEM_CFG (AR2315_SDRAMCTL + 0x00)
++#define AR2315_MEM_CTRL (AR2315_SDRAMCTL + 0x0c)
++#define AR2315_MEM_REF (AR2315_SDRAMCTL + 0x10)
++
++#define SDRAM_DATA_WIDTH_M 0x00006000
++#define SDRAM_DATA_WIDTH_S 13
++
++#define SDRAM_COL_WIDTH_M 0x00001E00
++#define SDRAM_COL_WIDTH_S 9
++
++#define SDRAM_ROW_WIDTH_M 0x000001E0
++#define SDRAM_ROW_WIDTH_S 5
++
++#define SDRAM_BANKADDR_BITS_M 0x00000018
++#define SDRAM_BANKADDR_BITS_S 3
++
++/*
++ * SPI Flash Interface Registers
++ */
++
++#define AR2315_SPI_CTL (AR2315_SPI + 0x00)
++#define AR2315_SPI_OPCODE (AR2315_SPI + 0x04)
++#define AR2315_SPI_DATA (AR2315_SPI + 0x08)
++
++#define SPI_CTL_START 0x00000100
++#define SPI_CTL_BUSY 0x00010000
++#define SPI_CTL_TXCNT_MASK 0x0000000f
++#define SPI_CTL_RXCNT_MASK 0x000000f0
++#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
++#define SPI_CTL_SIZE_MASK 0x00060000
++
++#define SPI_CTL_CLK_SEL_MASK 0x03000000
++#define SPI_OPCODE_MASK 0x000000ff
++
++/*
++ * PCI Bus Interface Registers
++ */
++#define AR2315_PCI_1MS_REG (AR2315_PCI + 0x0008)
++#define AR2315_PCI_1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
++
++#define AR2315_PCI_MISC_CONFIG (AR2315_PCI + 0x000c)
++#define AR2315_PCIMISC_TXD_EN 0x00000001 /* Enable TXD for fragments */
++#define AR2315_PCIMISC_CFG_SEL 0x00000002 /* mem or config cycles */
++#define AR2315_PCIMISC_GIG_MASK 0x0000000C /* bits 31-30 for pci req */
++#define AR2315_PCIMISC_RST_MODE 0x00000030
++#define AR2315_PCIRST_INPUT 0x00000000 /* 4:5=0 rst is input */
++#define AR2315_PCIRST_LOW 0x00000010 /* 4:5=1 rst to GND */
++#define AR2315_PCIRST_HIGH 0x00000020 /* 4:5=2 rst to VDD */
++#define AR2315_PCIGRANT_EN 0x00000000 /* 6:7=0 early grant en */
++#define AR2315_PCIGRANT_FRAME 0x00000040 /* 6:7=1 grant waits 4 frame */
++#define AR2315_PCIGRANT_IDLE 0x00000080 /* 6:7=2 grant waits 4 idle */
++#define AR2315_PCIGRANT_GAP 0x00000000 /* 6:7=2 grant waits 4 idle */
++#define AR2315_PCICACHE_DIS 0x00001000 /* PCI external access cache disable */
++
++#define AR2315_PCI_OUT_TSTAMP (AR2315_PCI + 0x0010)
++
++#define AR2315_PCI_UNCACHE_CFG (AR2315_PCI + 0x0014)
++
++#define AR2315_PCI_IN_EN (AR2315_PCI + 0x0100)
++#define AR2315_PCI_IN_EN0 0x01 /* Enable chain 0 */
++#define AR2315_PCI_IN_EN1 0x02 /* Enable chain 1 */
++#define AR2315_PCI_IN_EN2 0x04 /* Enable chain 2 */
++#define AR2315_PCI_IN_EN3 0x08 /* Enable chain 3 */
++
++#define AR2315_PCI_IN_DIS (AR2315_PCI + 0x0104)
++#define AR2315_PCI_IN_DIS0 0x01 /* Disable chain 0 */
++#define AR2315_PCI_IN_DIS1 0x02 /* Disable chain 1 */
++#define AR2315_PCI_IN_DIS2 0x04 /* Disable chain 2 */
++#define AR2315_PCI_IN_DIS3 0x08 /* Disable chain 3 */
++
++#define AR2315_PCI_IN_PTR (AR2315_PCI + 0x0200)
++
++#define AR2315_PCI_OUT_EN (AR2315_PCI + 0x0400)
++#define AR2315_PCI_OUT_EN0 0x01 /* Enable chain 0 */
++
++#define AR2315_PCI_OUT_DIS (AR2315_PCI + 0x0404)
++#define AR2315_PCI_OUT_DIS0 0x01 /* Disable chain 0 */
++
++#define AR2315_PCI_OUT_PTR (AR2315_PCI + 0x0408)
++
++#define AR2315_PCI_INT_STATUS (AR2315_PCI + 0x0500) /* write one to clr */
++#define AR2315_PCI_TXINT 0x00000001 /* Desc In Completed */
++#define AR2315_PCI_TXOK 0x00000002 /* Desc In OK */
++#define AR2315_PCI_TXERR 0x00000004 /* Desc In ERR */
++#define AR2315_PCI_TXEOL 0x00000008 /* Desc In End-of-List */
++#define AR2315_PCI_RXINT 0x00000010 /* Desc Out Completed */
++#define AR2315_PCI_RXOK 0x00000020 /* Desc Out OK */
++#define AR2315_PCI_RXERR 0x00000040 /* Desc Out ERR */
++#define AR2315_PCI_RXEOL 0x00000080 /* Desc Out EOL */
++#define AR2315_PCI_TXOOD 0x00000200 /* Desc In Out-of-Desc */
++#define AR2315_PCI_MASK 0x0000FFFF /* Desc Mask */
++#define AR2315_PCI_EXT_INT 0x02000000
++#define AR2315_PCI_ABORT_INT 0x04000000
++
++#define AR2315_PCI_INT_MASK (AR2315_PCI + 0x0504) /* same as INT_STATUS */
++
++#define AR2315_PCI_INTEN_REG (AR2315_PCI + 0x0508)
++#define AR2315_PCI_INT_DISABLE 0x00 /* disable pci interrupts */
++#define AR2315_PCI_INT_ENABLE 0x01 /* enable pci interrupts */
++
++#define AR2315_PCI_HOST_IN_EN (AR2315_PCI + 0x0800)
++#define AR2315_PCI_HOST_IN_DIS (AR2315_PCI + 0x0804)
++#define AR2315_PCI_HOST_IN_PTR (AR2315_PCI + 0x0810)
++#define AR2315_PCI_HOST_OUT_EN (AR2315_PCI + 0x0900)
++#define AR2315_PCI_HOST_OUT_DIS (AR2315_PCI + 0x0904)
++#define AR2315_PCI_HOST_OUT_PTR (AR2315_PCI + 0x0908)
++
++
++/*
++ * Local Bus Interface Registers
++ */
++#define AR2315_LB_CONFIG (AR2315_LOCAL + 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 (AR2315_LOCAL + 0x0004)
++#define AR2315_LBCLK_EXT 0x0001 /* use external clk for lb */
++
++#define AR2315_LB_1MS (AR2315_LOCAL + 0x0008)
++#define AR2315_LB1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
++
++#define AR2315_LB_MISCCFG (AR2315_LOCAL + 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_MASK 0x00FFFF80
++#define AR2315_LBM_TIMEOUT_SHFT 7
++#define AR2315_LBM_PORTMUX 0x07000000
++
++
++#define AR2315_LB_RXTSOFF (AR2315_LOCAL + 0x0010)
++
++#define AR2315_LB_TX_CHAIN_EN (AR2315_LOCAL + 0x0100)
++#define AR2315_LB_TXEN_0 0x01
++#define AR2315_LB_TXEN_1 0x02
++#define AR2315_LB_TXEN_2 0x04
++#define AR2315_LB_TXEN_3 0x08
++
++#define AR2315_LB_TX_CHAIN_DIS (AR2315_LOCAL + 0x0104)
++#define AR2315_LB_TX_DESC_PTR (AR2315_LOCAL + 0x0200)
++
++#define AR2315_LB_RX_CHAIN_EN (AR2315_LOCAL + 0x0400)
++#define AR2315_LB_RXEN 0x01
++
++#define AR2315_LB_RX_CHAIN_DIS (AR2315_LOCAL + 0x0404)
++#define AR2315_LB_RX_DESC_PTR (AR2315_LOCAL + 0x0408)
++
++#define AR2315_LB_INT_STATUS (AR2315_LOCAL + 0x0500)
++#define AR2315_INT_TX_DESC 0x0001
++#define AR2315_INT_TX_OK 0x0002
++#define AR2315_INT_TX_ERR 0x0004
++#define AR2315_INT_TX_EOF 0x0008
++#define AR2315_INT_RX_DESC 0x0010
++#define AR2315_INT_RX_OK 0x0020
++#define AR2315_INT_RX_ERR 0x0040
++#define AR2315_INT_RX_EOF 0x0080
++#define AR2315_INT_TX_TRUNC 0x0100
++#define AR2315_INT_TX_STARVE 0x0200
++#define AR2315_INT_LB_TIMEOUT 0x0400
++#define AR2315_INT_LB_ERR 0x0800
++#define AR2315_INT_MBOX_WR 0x1000
++#define AR2315_INT_MBOX_RD 0x2000
++
++/* Bit definitions for INT MASK are the same as INT_STATUS */
++#define AR2315_LB_INT_MASK (AR2315_LOCAL + 0x0504)
++
++#define AR2315_LB_INT_EN (AR2315_LOCAL + 0x0508)
++#define AR2315_LB_MBOX (AR2315_LOCAL + 0x0600)
++
++/*
++ * IR Interface Registers
++ */
++#define AR2315_IR_PKTDATA (AR2315_IR + 0x0000)
++
++#define AR2315_IR_PKTLEN (AR2315_IR + 0x07fc) /* 0 - 63 */
++
++#define AR2315_IR_CONTROL (AR2315_IR + 0x0800)
++#define AR2315_IRCTL_TX 0x00000000 /* use as tranmitter */
++#define AR2315_IRCTL_RX 0x00000001 /* use as receiver */
++#define AR2315_IRCTL_SAMPLECLK_MASK 0x00003ffe /* Sample clk divisor mask */
++#define AR2315_IRCTL_SAMPLECLK_SHFT 1
++#define AR2315_IRCTL_OUTPUTCLK_MASK 0x03ffc000 /* Output clk divisor mask */
++#define AR2315_IRCTL_OUTPUTCLK_SHFT 14
++
++#define AR2315_IR_STATUS (AR2315_IR + 0x0804)
++#define AR2315_IRSTS_RX 0x00000001 /* receive in progress */
++#define AR2315_IRSTS_TX 0x00000002 /* transmit in progress */
++
++#define AR2315_IR_CONFIG (AR2315_IR + 0x0808)
++#define AR2315_IRCFG_INVIN 0x00000001 /* invert input polarity */
++#define AR2315_IRCFG_INVOUT 0x00000002 /* invert output polarity */
++#define AR2315_IRCFG_SEQ_START_WIN_SEL 0x00000004 /* 1 => 28, 0 => 7 */
++#define AR2315_IRCFG_SEQ_START_THRESH 0x000000f0 /* */
++#define AR2315_IRCFG_SEQ_END_UNIT_SEL 0x00000100 /* */
++#define AR2315_IRCFG_SEQ_END_UNIT_THRESH 0x00007e00 /* */
++#define AR2315_IRCFG_SEQ_END_WIN_SEL 0x00008000 /* */
++#define AR2315_IRCFG_SEQ_END_WIN_THRESH 0x001f0000 /* */
++#define AR2315_IRCFG_NUM_BACKOFF_WORDS 0x01e00000 /* */
++
++#define HOST_PCI_DEV_ID 3
++#define HOST_PCI_MBAR0 0x10000000
++#define HOST_PCI_MBAR1 0x20000000
++#define HOST_PCI_MBAR2 0x30000000
++
++#define HOST_PCI_SDRAM_BASEADDR HOST_PCI_MBAR1
++#define PCI_DEVICE_MEM_SPACE 0x800000
++
++#endif /* __AR2315_REG_H */
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ar231x/ar5312_regs.h
+@@ -0,0 +1,236 @@
++/*
++ * 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 AR5312_H
++#define AR5312_H
++
++#include <asm/addrspace.h>
++
++/*
++ * IRQs
++ */
++
++#define AR5312_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
++#define AR5312_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
++#define AR5312_IRQ_ENET1_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
++#define AR5312_IRQ_WLAN1_INTRS MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */
++#define AR5312_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
++
++
++/* Address Map */
++#define AR531X_WLAN0 0x18000000
++#define AR531X_WLAN1 0x18500000
++#define AR531X_ENET0 0x18100000
++#define AR531X_ENET1 0x18200000
++#define AR531X_SDRAMCTL 0x18300000
++#define AR531X_FLASHCTL 0x18400000
++#define AR531X_APBBASE 0x1c000000
++#define AR531X_FLASH 0x1e000000
++#define AR531X_UART0 0xbc000003 /* UART MMR */
++
++/*
++ * AR531X_NUM_ENET_MAC defines the number of ethernet MACs that
++ * should be considered available. 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 AR531X_NUM_ENET_MAC 2
++
++/*
++ * Need these defines to determine true number of ethernet MACs
++ */
++#define AR5212_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
++#define AR5212_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
++#define AR5212_AR2313_REV8 0x0058 /* AR2313 WMAC (AP43-030) */
++#define AR531X_RADIO_MASK_OFF 0xc8
++#define AR531X_RADIO0_MASK 0x0003
++#define AR531X_RADIO1_MASK 0x000c
++#define AR531X_RADIO1_S 2
++
++/*
++ * AR531X_NUM_WMAC defines the number of Wireless MACs that\
++ * should be considered available.
++ */
++#define AR531X_NUM_WMAC 2
++
++/* Reset/Timer Block Address Map */
++#define AR531X_RESETTMR (AR531X_APBBASE + 0x3000)
++#define AR531X_TIMER (AR531X_RESETTMR + 0x0000) /* countdown timer */
++#define AR531X_WD_CTRL (AR531X_RESETTMR + 0x0008) /* watchdog cntrl */
++#define AR531X_WD_TIMER (AR531X_RESETTMR + 0x000c) /* watchdog timer */
++#define AR531X_ISR (AR531X_RESETTMR + 0x0010) /* Intr Status Reg */
++#define AR531X_IMR (AR531X_RESETTMR + 0x0014) /* Intr Mask Reg */
++#define AR531X_RESET (AR531X_RESETTMR + 0x0020)
++#define AR5312_CLOCKCTL1 (AR531X_RESETTMR + 0x0064)
++#define AR5312_SCRATCH (AR531X_RESETTMR + 0x006c)
++#define AR531X_PROCADDR (AR531X_RESETTMR + 0x0070)
++#define AR531X_PROC1 (AR531X_RESETTMR + 0x0074)
++#define AR531X_DMAADDR (AR531X_RESETTMR + 0x0078)
++#define AR531X_DMA1 (AR531X_RESETTMR + 0x007c)
++#define AR531X_ENABLE (AR531X_RESETTMR + 0x0080) /* interface enb */
++#define AR531X_REV (AR531X_RESETTMR + 0x0090) /* revision */
++
++/* AR531X_WD_CTRL register bit field definitions */
++#define AR531X_WD_CTRL_IGNORE_EXPIRATION 0x0000
++#define AR531X_WD_CTRL_NMI 0x0001
++#define AR531X_WD_CTRL_RESET 0x0002
++
++/* AR531X_ISR register bit field definitions */
++#define AR531X_ISR_NONE 0x0000
++#define AR531X_ISR_TIMER 0x0001
++#define AR531X_ISR_AHBPROC 0x0002
++#define AR531X_ISR_AHBDMA 0x0004
++#define AR531X_ISR_GPIO 0x0008
++#define AR531X_ISR_UART0 0x0010
++#define AR531X_ISR_UART0DMA 0x0020
++#define AR531X_ISR_WD 0x0040
++#define AR531X_ISR_LOCAL 0x0080
++
++/* AR531X_RESET register bit field definitions */
++#define AR531X_RESET_SYSTEM 0x00000001 /* cold reset full system */
++#define AR531X_RESET_PROC 0x00000002 /* cold reset MIPS core */
++#define AR531X_RESET_WLAN0 0x00000004 /* cold reset WLAN MAC and BB */
++#define AR531X_RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */
++#define AR531X_RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */
++#define AR531X_RESET_ENET0 0x00000020 /* cold reset ENET0 mac */
++#define AR531X_RESET_ENET1 0x00000040 /* cold reset ENET1 mac */
++#define AR531X_RESET_UART0 0x00000100 /* cold reset UART0 (high speed) */
++#define AR531X_RESET_WLAN1 0x00000200 /* cold reset WLAN MAC/BB */
++#define AR531X_RESET_APB 0x00000400 /* cold reset APB (ar5312) */
++#define AR531X_RESET_WARM_PROC 0x00001000 /* warm reset MIPS core */
++#define AR531X_RESET_WARM_WLAN0_MAC 0x00002000 /* warm reset WLAN0 MAC */
++#define AR531X_RESET_WARM_WLAN0_BB 0x00004000 /* warm reset WLAN0 BaseBand */
++#define AR531X_RESET_NMI 0x00010000 /* send an NMI to the processor */
++#define AR531X_RESET_WARM_WLAN1_MAC 0x00020000 /* warm reset WLAN1 mac */
++#define AR531X_RESET_WARM_WLAN1_BB 0x00040000 /* warm reset WLAN1 baseband */
++#define AR531X_RESET_LOCAL_BUS 0x00080000 /* reset local bus */
++#define AR531X_RESET_WDOG 0x00100000 /* last reset was a watchdog */
++
++#define AR531X_RESET_WMAC0_BITS \
++ AR531X_RESET_WLAN0 |\
++ AR531X_RESET_WARM_WLAN0_MAC |\
++ AR531X_RESET_WARM_WLAN0_BB
++
++#define AR531X_RESERT_WMAC1_BITS \
++ AR531X_RESET_WLAN1 |\
++ AR531X_RESET_WARM_WLAN1_MAC |\
++ AR531X_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
++
++
++/* AR531X_ENABLE register bit field definitions */
++#define AR531X_ENABLE_WLAN0 0x0001
++#define AR531X_ENABLE_ENET0 0x0002
++#define AR531X_ENABLE_ENET1 0x0004
++#define AR531X_ENABLE_UART_AND_WLAN1_PIO 0x0008 /* UART, and WLAN1 PIOs */
++#define AR531X_ENABLE_WLAN1_DMA 0x0010 /* WLAN1 DMAs */
++#define AR531X_ENABLE_WLAN1 \
++ (AR531X_ENABLE_UART_AND_WLAN1_PIO | AR531X_ENABLE_WLAN1_DMA)
++
++/* AR531X_REV register bit field definitions */
++#define AR531X_REV_WMAC_MAJ 0xf000
++#define AR531X_REV_WMAC_MAJ_S 12
++#define AR531X_REV_WMAC_MIN 0x0f00
++#define AR531X_REV_WMAC_MIN_S 8
++#define AR531X_REV_MAJ 0x00f0
++#define AR531X_REV_MAJ_S 4
++#define AR531X_REV_MIN 0x000f
++#define AR531X_REV_MIN_S 0
++#define AR531X_REV_CHIP (AR531X_REV_MAJ|AR531X_REV_MIN)
++
++/* Major revision numbers, bits 7..4 of Revision ID register */
++#define AR531X_REV_MAJ_AR5312 0x4
++#define AR531X_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 */
++
++/* AR531X_FLASHCTL register bit field definitions */
++#define FLASHCTL_IDCY 0x0000000f /* Idle cycle turn around time */
++#define FLASHCTL_IDCY_S 0
++#define FLASHCTL_WST1 0x000003e0 /* Wait state 1 */
++#define FLASHCTL_WST1_S 5
++#define FLASHCTL_RBLE 0x00000400 /* Read byte lane enable */
++#define FLASHCTL_WST2 0x0000f800 /* Wait state 2 */
++#define FLASHCTL_WST2_S 11
++#define FLASHCTL_AC 0x00070000 /* Flash address check (added) */
++#define FLASHCTL_AC_S 16
++#define FLASHCTL_AC_128K 0x00000000
++#define FLASHCTL_AC_256K 0x00010000
++#define FLASHCTL_AC_512K 0x00020000
++#define FLASHCTL_AC_1M 0x00030000
++#define FLASHCTL_AC_2M 0x00040000
++#define FLASHCTL_AC_4M 0x00050000
++#define FLASHCTL_AC_8M 0x00060000
++#define FLASHCTL_AC_RES 0x00070000 /* 16MB is not supported */
++#define FLASHCTL_E 0x00080000 /* Flash bank enable (added) */
++#define FLASHCTL_BUSERR 0x01000000 /* Bus transfer error status flag */
++#define FLASHCTL_WPERR 0x02000000 /* Write protect error status flag */
++#define FLASHCTL_WP 0x04000000 /* Write protect */
++#define FLASHCTL_BM 0x08000000 /* Burst mode */
++#define FLASHCTL_MW 0x30000000 /* Memory width */
++#define FLASHCTL_MWx8 0x00000000 /* Memory width x8 */
++#define FLASHCTL_MWx16 0x10000000 /* Memory width x16 */
++#define FLASHCTL_MWx32 0x20000000 /* Memory width x32 (not supported) */
++#define FLASHCTL_ATNR 0x00000000 /* Access type == no retry */
++#define FLASHCTL_ATR 0x80000000 /* Access type == retry every */
++#define FLASHCTL_ATR4 0xc0000000 /* Access type == retry every 4 */
++
++/* ARM Flash Controller -- 3 flash banks with either x8 or x16 devices. */
++#define AR531X_FLASHCTL0 (AR531X_FLASHCTL + 0x00)
++#define AR531X_FLASHCTL1 (AR531X_FLASHCTL + 0x04)
++#define AR531X_FLASHCTL2 (AR531X_FLASHCTL + 0x08)
++
++/* ARM SDRAM Controller -- just enough to determine memory size */
++#define AR531X_MEM_CFG1 (AR531X_SDRAMCTL + 0x04)
++#define MEM_CFG1_AC0 0x00000700 /* bank 0: SDRAM addr check (added) */
++#define MEM_CFG1_AC0_S 8
++#define MEM_CFG1_AC1 0x00007000 /* bank 1: SDRAM addr check (added) */
++#define MEM_CFG1_AC1_S 12
++
++/* GPIO Address Map */
++#define AR531X_GPIO (AR531X_APBBASE + 0x2000)
++#define AR531X_GPIO_DO (AR531X_GPIO + 0x00) /* output register */
++#define AR531X_GPIO_DI (AR531X_GPIO + 0x04) /* intput register */
++#define AR531X_GPIO_CR (AR531X_GPIO + 0x08) /* control register */
++
++/* GPIO Control Register bit field definitions */
++#define AR531X_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
++#define AR531X_GPIO_CR_O(x) (0 << (x)) /* mask for output */
++#define AR531X_GPIO_CR_I(x) (1 << (x)) /* mask for input */
++#define AR531X_GPIO_CR_INT(x) (1 << ((x)+8)) /* mask for interrupt */
++#define AR531X_GPIO_CR_UART(x) (1 << ((x)+16)) /* uart multiplex */
++#define AR531X_NUM_GPIO 8
++
++
++#endif
++
+--- /dev/null
++++ b/arch/mips/ar231x/ar5312.c
+@@ -0,0 +1,563 @@
++/*
++ * 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>
++ */
++
++/*
++ * Platform devices for Atheros SoCs
++ */
++
++#include <linux/autoconf.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/string.h>
++#include <linux/mtd/physmap.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/reboot.h>
++#include <linux/leds.h>
++#include <asm/bootinfo.h>
++#include <asm/reboot.h>
++#include <asm/time.h>
++#include <asm/irq.h>
++#include <asm/io.h>
++#include <gpio.h>
++
++#include <ar231x_platform.h>
++#include <ar5312_regs.h>
++#include <ar231x.h>
++#include "devices.h"
++#include "ar5312.h"
++
++#define IS_5312() (current_cpu_data.cputype != CPU_4KEC)
++
++static void
++ar5312_misc_irq_dispatch(void)
++{
++ unsigned int ar231x_misc_intrs = ar231x_read_reg(AR531X_ISR) & ar231x_read_reg(AR531X_IMR);
++
++ if (ar231x_misc_intrs & AR531X_ISR_TIMER) {
++ do_IRQ(AR531X_MISC_IRQ_TIMER);
++ (void)ar231x_read_reg(AR531X_TIMER);
++ } else if (ar231x_misc_intrs & AR531X_ISR_AHBPROC)
++ do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
++ else if ((ar231x_misc_intrs & AR531X_ISR_UART0))
++ do_IRQ(AR531X_MISC_IRQ_UART0);
++ else if (ar231x_misc_intrs & AR531X_ISR_WD)
++ do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
++ else
++ do_IRQ(AR531X_MISC_IRQ_NONE);
++}
++
++void
++ar5312_irq_dispatch(void)
++{
++ int pending = read_c0_status() & read_c0_cause();
++
++ if (pending & CAUSEF_IP2)
++ do_IRQ(AR5312_IRQ_WLAN0_INTRS);
++ else if (pending & CAUSEF_IP3)
++ do_IRQ(AR5312_IRQ_ENET0_INTRS);
++ else if (pending & CAUSEF_IP4)
++ do_IRQ(AR5312_IRQ_ENET1_INTRS);
++ else if (pending & CAUSEF_IP5)
++ do_IRQ(AR5312_IRQ_WLAN1_INTRS);
++ else if (pending & CAUSEF_IP6)
++ ar5312_misc_irq_dispatch();
++ else if (pending & CAUSEF_IP7)
++ do_IRQ(AR531X_IRQ_CPU_CLOCK);
++}
++
++
++/* Enable the specified AR531X_MISC_IRQ interrupt */
++static void
++ar5312_misc_intr_enable(unsigned int irq)
++{
++ unsigned int imr;
++
++ imr = ar231x_read_reg(AR531X_IMR);
++ imr |= (1 << (irq - AR531X_MISC_IRQ_BASE - 1));
++ ar231x_write_reg(AR531X_IMR, imr);
++}
++
++/* Disable the specified AR531X_MISC_IRQ interrupt */
++static void
++ar5312_misc_intr_disable(unsigned int irq)
++{
++ unsigned int imr;
++
++ imr = ar231x_read_reg(AR531X_IMR);
++ imr &= ~(1 << (irq - AR531X_MISC_IRQ_BASE - 1));
++ ar231x_write_reg(AR531X_IMR, imr);
++ ar231x_read_reg(AR531X_IMR); /* flush write buffer */
++}
++
++static unsigned int
++ar5312_misc_intr_startup(unsigned int irq)
++{
++ ar5312_misc_intr_enable(irq);
++ return 0;
++}
++
++static void
++ar5312_misc_intr_end(unsigned int irq)
++{
++ if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
++ ar5312_misc_intr_enable(irq);
++}
++
++static struct irq_chip ar5312_misc_intr_controller = {
++ .name = "AR5312-MISC",
++ .startup = ar5312_misc_intr_startup,
++ .shutdown = ar5312_misc_intr_disable,
++ .enable = ar5312_misc_intr_enable,
++ .disable = ar5312_misc_intr_disable,
++ .ack = ar5312_misc_intr_disable,
++ .end = ar5312_misc_intr_end,
++};
++
++
++static irqreturn_t ar5312_ahb_proc_handler(int cpl, void *dev_id)
++{
++ u32 proc1 = ar231x_read_reg(AR531X_PROC1);
++ u32 procAddr = ar231x_read_reg(AR531X_PROCADDR); /* clears error state */
++ u32 dma1 = ar231x_read_reg(AR531X_DMA1);
++ u32 dmaAddr = ar231x_read_reg(AR531X_DMAADDR); /* clears error state */
++
++ printk("AHB interrupt: PROCADDR=0x%8.8x PROC1=0x%8.8x DMAADDR=0x%8.8x DMA1=0x%8.8x\n",
++ procAddr, proc1, dmaAddr, dma1);
++
++ machine_restart("AHB error"); /* Catastrophic failure */
++ return IRQ_HANDLED;
++}
++
++
++static struct irqaction ar5312_ahb_proc_interrupt = {
++ .handler = ar5312_ahb_proc_handler,
++ .flags = IRQF_DISABLED,
++ .name = "ar5312_ahb_proc_interrupt",
++};
++
++
++static struct irqaction cascade = {
++ .handler = no_action,
++ .flags = IRQF_DISABLED,
++ .name = "cascade",
++};
++
++void __init ar5312_irq_init(void)
++{
++ int i;
++
++ if (!IS_5312())
++ return;
++
++ ar231x_irq_dispatch = ar5312_irq_dispatch;
++ for (i = 0; i < AR531X_MISC_IRQ_COUNT; i++) {
++ int irq = AR531X_MISC_IRQ_BASE + i;
++ irq_desc[irq].status = IRQ_DISABLED;
++ irq_desc[irq].action = NULL;
++ irq_desc[irq].depth = 1;
++ irq_desc[irq].chip = &ar5312_misc_intr_controller;
++ }
++ setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar5312_ahb_proc_interrupt);
++ setup_irq(AR5312_IRQ_MISC_INTRS, &cascade);
++}
++
++const struct ar231x_gpiodev ar5312_gpiodev;
++
++static u32
++ar5312_gpio_get_output(void)
++{
++ u32 reg;
++ reg = ~(ar231x_read_reg(AR531X_GPIO_CR));
++ reg &= ar5312_gpiodev.valid_mask;
++ return reg;
++}
++
++static u32
++ar5312_gpio_set_output(u32 mask, u32 val)
++{
++ u32 reg;
++
++ reg = ar231x_read_reg(AR531X_GPIO_CR);
++ reg |= mask;
++ reg &= ~val;
++ ar231x_write_reg(AR531X_GPIO_CR, reg);
++ return reg;
++}
++
++static u32
++ar5312_gpio_get(void)
++{
++ u32 reg;
++ reg = ar231x_read_reg(AR531X_GPIO_DI);
++ reg &= ar5312_gpiodev.valid_mask;
++ return reg;
++}
++
++static u32
++ar5312_gpio_set(u32 mask, u32 value)
++{
++ u32 reg;
++ reg = ar231x_read_reg(AR531X_GPIO_DO);
++ reg &= ~mask;
++ reg |= value;
++ ar231x_write_reg(AR531X_GPIO_DO, reg);
++ return reg;
++}
++
++const struct ar231x_gpiodev ar5312_gpiodev = {
++ .valid_mask = (1 << 8) - 1,
++ .get_output = ar5312_gpio_get_output,
++ .set_output = ar5312_gpio_set_output,
++ .get = ar5312_gpio_get,
++ .set = ar5312_gpio_set,
++};
++
++static struct physmap_flash_data ar5312_flash_data = {
++ .width = 2,
++};
++
++static struct resource ar5312_flash_resource = {
++ .start = AR531X_FLASH,
++ .end = AR531X_FLASH + 0x800000 - 1,
++ .flags = IORESOURCE_MEM,
++};
++
++static struct ar231x_eth ar5312_eth0_data = {
++ .reset_base = AR531X_RESET,
++ .reset_mac = AR531X_RESET_ENET0,
++ .reset_phy = AR531X_RESET_EPHY0,
++ .phy_base = KSEG1ADDR(AR531X_ENET0),
++ .config = &ar231x_board,
++};
++
++static struct ar231x_eth ar5312_eth1_data = {
++ .reset_base = AR531X_RESET,
++ .reset_mac = AR531X_RESET_ENET1,
++ .reset_phy = AR531X_RESET_EPHY1,
++ .phy_base = KSEG1ADDR(AR531X_ENET1),
++ .config = &ar231x_board,
++};
++
++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,
++};
++
++#ifdef CONFIG_LEDS_GPIO
++static struct gpio_led ar5312_leds[] = {
++ { .name = "wlan", .gpio = 0, .active_low = 1, },
++};
++
++static const struct gpio_led_platform_data ar5312_led_data = {
++ .num_leds = ARRAY_SIZE(ar5312_leds),
++ .leds = (void *) ar5312_leds,
++};
++
++static struct platform_device ar5312_gpio_leds = {
++ .name = "leds-gpio",
++ .id = -1,
++ .dev.platform_data = (void *) &ar5312_led_data,
++ .num_resources = 1,
++};
++#endif
++
++/*
++ * NB: This mapping size is larger than the actual flash size,
++ * but this shouldn't be a problem here, because the flash
++ * will simply be mapped multiple times.
++ */
++static char __init *ar5312_flash_limit(void)
++{
++ u32 ctl;
++ /*
++ * Configure flash bank 0.
++ * Assume 8M window size. Flash will be aliased if it's smaller
++ */
++ ctl = FLASHCTL_E |
++ FLASHCTL_AC_8M |
++ FLASHCTL_RBLE |
++ (0x01 << FLASHCTL_IDCY_S) |
++ (0x07 << FLASHCTL_WST1_S) |
++ (0x07 << FLASHCTL_WST2_S) |
++ (ar231x_read_reg(AR531X_FLASHCTL0) & FLASHCTL_MW);
++
++ ar231x_write_reg(AR531X_FLASHCTL0, ctl);
++
++ /* Disable other flash banks */
++ ar231x_write_reg(AR531X_FLASHCTL1,
++ ar231x_read_reg(AR531X_FLASHCTL1) & ~(FLASHCTL_E | FLASHCTL_AC));
++
++ ar231x_write_reg(AR531X_FLASHCTL2,
++ ar231x_read_reg(AR531X_FLASHCTL2) & ~(FLASHCTL_E | FLASHCTL_AC));
++
++ return (char *) KSEG1ADDR(AR531X_FLASH + 0x800000);
++}
++
++int __init ar5312_init_devices(void)
++{
++ struct ar231x_boarddata *config;
++ u32 fctl = 0;
++ const u8 *radio;
++ u8 *c;
++
++ if (!IS_5312())
++ return 0;
++
++ /* Locate board/radio config data */
++ ar231x_find_config(ar5312_flash_limit());
++ config = ar231x_board.config;
++
++
++ /*
++ * Chip IDs and hardware detection for some Atheros
++ * models are really broken!
++ *
++ * Atheros uses a disabled WMAC0 and Silicon ID of AR5312
++ * as indication for AR2312, which is otherwise
++ * indistinguishable from the real AR5312.
++ */
++ if (ar231x_board.radio) {
++ radio = ar231x_board.radio + AR531X_RADIO_MASK_OFF;
++ if ((*((const u32 *) radio) & AR531X_RADIO0_MASK) == 0)
++ config->flags |= BD_ISCASPER;
++ } else
++ radio = NULL;
++
++ /* AR2313 has CPU minor rev. 10 */
++ if ((current_cpu_data.processor_id & 0xff) == 0x0a)
++ ar231x_devtype = DEV_TYPE_AR2313;
++
++ /* AR2312 shares the same Silicon ID as AR5312 */
++ else if (config->flags & BD_ISCASPER)
++ ar231x_devtype = DEV_TYPE_AR2312;
++
++ /* Everything else is probably AR5312 or compatible */
++ else
++ ar231x_devtype = DEV_TYPE_AR5312;
++
++ /* fixup flash width */
++ fctl = ar231x_read_reg(AR531X_FLASHCTL) & FLASHCTL_MW;
++ switch (fctl) {
++ case FLASHCTL_MWx16:
++ ar5312_flash_data.width = 2;
++ break;
++ case FLASHCTL_MWx8:
++ default:
++ ar5312_flash_data.width = 1;
++ break;
++ }
++
++ platform_device_register(&ar5312_physmap_flash);
++
++#ifdef CONFIG_LEDS_GPIO
++ ar5312_leds[0].gpio = config->sysLedGpio;
++ platform_device_register(&ar5312_gpio_leds);
++#endif
++
++ /* Fix up MAC addresses if necessary */
++ if (!memcmp(config->enet0_mac, "\xff\xff\xff\xff\xff\xff", 6))
++ memcpy(config->enet0_mac, config->enet1_mac, 6);
++
++ /* If ENET0 and ENET1 have the same mac address,
++ * increment the one from ENET1 */
++ if (memcmp(config->enet0_mac, config->enet1_mac, 6) == 0) {
++ c = config->enet1_mac + 5;
++ while ((c >= config->enet1_mac) && !(++(*c)))
++ c--;
++ }
++
++ switch(ar231x_devtype) {
++ case DEV_TYPE_AR5312:
++ ar5312_eth0_data.macaddr = config->enet0_mac;
++ ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET0),
++ AR5312_IRQ_ENET0_INTRS, &ar5312_eth0_data);
++
++ ar5312_eth1_data.macaddr = config->enet1_mac;
++ ar231x_add_ethernet(1, KSEG1ADDR(AR531X_ENET1),
++ AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data);
++
++ if (!ar231x_board.radio)
++ return 0;
++
++ if (*((u32 *) ar231x_board.radio) & AR531X_RADIO0_MASK)
++ ar231x_add_wmac(0, AR531X_WLAN0,
++ AR5312_IRQ_WLAN0_INTRS);
++
++ break;
++ /*
++ * AR2312/3 ethernet uses the PHY of ENET0, but the MAC
++ * of ENET1. Atheros calls it 'twisted' for a reason :)
++ */
++ case DEV_TYPE_AR2312:
++ case DEV_TYPE_AR2313:
++ ar5312_eth1_data.phy_base = ar5312_eth0_data.phy_base;
++ ar5312_eth1_data.reset_phy = ar5312_eth0_data.reset_phy;
++ ar5312_eth1_data.macaddr = config->enet0_mac;
++ ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET1),
++ AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data);
++
++ if (!ar231x_board.radio)
++ return 0;
++ break;
++ default:
++ break;
++ }
++
++ if (*((u32 *) ar231x_board.radio) & AR531X_RADIO1_MASK)
++ ar231x_add_wmac(1, AR531X_WLAN1,
++ AR5312_IRQ_WLAN1_INTRS);
++
++ return 0;
++}
++
++
++static void ar5312_restart(char *command)
++{
++ /* reset the system */
++ local_irq_disable();
++ while(1) {
++ ar231x_write_reg(AR531X_RESET, AR531X_RESET_SYSTEM);
++ }
++}
++
++
++/*
++ * This table is indexed by bits 5..4 of the CLOCKCTL1 register
++ * to determine the predevisor value.
++ */
++static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = {
++ 1,
++ 2,
++ 4,
++ 5
++};
++
++
++static int __init
++ar5312_cpu_frequency(void)
++{
++ unsigned int result;
++ unsigned int predivide_mask, predivide_shift;
++ unsigned int multiplier_mask, multiplier_shift;
++ unsigned int clockCtl1, preDivideSelect, preDivisor, multiplier;
++ unsigned int doubler_mask;
++ u16 devid;
++
++ /* Trust the bootrom's idea of cpu frequency. */
++ if ((result = ar231x_read_reg(AR5312_SCRATCH)))
++ return result;
++
++ devid = ar231x_board.devid;
++ devid &= AR531X_REV_MAJ;
++ devid >>= AR531X_REV_MAJ_S;
++ if (devid == AR531X_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.
++ *
++ * cpuFreq = InputClock * MULT (where MULT is PLL multiplier)
++ * sysFreq = cpuFreq / 4 (used for APB clock, serial,
++ * flash, Timer, Watchdog Timer)
++ *
++ * cntFreq = cpuFreq / 2 (use for CPU count/compare)
++ *
++ * So, for example, with a PLL multiplier of 5, we have
++ *
++ * cpuFreq = 200MHz
++ * sysFreq = 50MHz
++ * cntFreq = 100MHz
++ *
++ * We compute the CPU frequency, based on PLL settings.
++ */
++
++ clockCtl1 = ar231x_read_reg(AR5312_CLOCKCTL1);
++ preDivideSelect = (clockCtl1 & predivide_mask) >> predivide_shift;
++ preDivisor = CLOCKCTL1_PREDIVIDE_TABLE[preDivideSelect];
++ multiplier = (clockCtl1 & multiplier_mask) >> multiplier_shift;
++
++ if (clockCtl1 & doubler_mask) {
++ multiplier = multiplier << 1;
++ }
++ return (40000000 / preDivisor) * multiplier;
++}
++
++static inline int
++ar5312_sys_frequency(void)
++{
++ return ar5312_cpu_frequency() / 4;
++}
++
++void __init
++ar5312_time_init(void)
++{
++ if (!IS_5312())
++ return;
++
++ mips_hpt_frequency = ar5312_cpu_frequency() / 2;
++}
++
++
++void __init
++ar5312_prom_init(void)
++{
++ u32 memsize, memcfg, bank0AC, bank1AC;
++ u32 devid;
++
++ if (!IS_5312())
++ return;
++
++ devid = ar231x_read_reg(AR531X_REV);
++ devid &= AR531X_REV_MAJ | AR531X_REV_MIN;
++
++ /* Detect memory size */
++ memcfg = ar231x_read_reg(AR531X_MEM_CFG1);
++ bank0AC = (memcfg & MEM_CFG1_AC0) >> MEM_CFG1_AC0_S;
++ bank1AC = (memcfg & MEM_CFG1_AC1) >> MEM_CFG1_AC1_S;
++ memsize = (bank0AC ? (1 << (bank0AC+1)) : 0)
++ + (bank1AC ? (1 << (bank1AC+1)) : 0);
++ memsize <<= 20;
++ add_memory_region(0, memsize, BOOT_MEM_RAM);
++ ar231x_gpiodev = &ar5312_gpiodev;
++ ar231x_board.devid = (u16) devid;
++}
++
++void __init
++ar5312_plat_setup(void)
++{
++ if (!IS_5312())
++ return;
++
++ /* Clear any lingering AHB errors */
++ ar231x_read_reg(AR531X_PROCADDR);
++ ar231x_read_reg(AR531X_DMAADDR);
++ ar231x_write_reg(AR531X_WD_CTRL, AR531X_WD_CTRL_IGNORE_EXPIRATION);
++
++ _machine_restart = ar5312_restart;
++ ar231x_serial_setup(KSEG1ADDR(AR531X_UART0), ar5312_sys_frequency());
++}
++
+--- /dev/null
++++ b/arch/mips/ar231x/pci.c
+@@ -0,0 +1,231 @@
++/*
++ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ */
++
++#include <linux/types.h>
++#include <linux/pci.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/mm.h>
++#include <linux/spinlock.h>
++#include <linux/delay.h>
++#include <linux/irq.h>
++#include <asm/bootinfo.h>
++#include <asm/paccess.h>
++#include <asm/irq_cpu.h>
++#include <asm/io.h>
++#include <ar231x_platform.h>
++#include <ar231x.h>
++#include <ar2315_regs.h>
++
++#define AR531X_MEM_BASE 0x80800000UL
++#define AR531X_MEM_SIZE 0x00ffffffUL
++#define AR531X_IO_SIZE 0x00007fffUL
++
++#define IS_2315() (current_cpu_data.cputype == CPU_4KEC)
++
++static unsigned long configspace;
++
++static int config_access(int devfn, int where, int size, u32 *ptr, bool write)
++{
++ unsigned long flags;
++ int func = PCI_FUNC(devfn);
++ int dev = PCI_SLOT(devfn);
++ u32 value = 0;
++ int err = 0;
++ u32 addr;
++
++ if (((dev != 0) && (dev != 3)) || (func > 2))
++ return PCIBIOS_DEVICE_NOT_FOUND;
++
++ /* Select Configuration access */
++ local_irq_save(flags);
++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, 0, AR2315_PCIMISC_CFG_SEL);
++ mb();
++
++ addr = (u32) configspace + (1 << (13 + dev)) + (func << 8) + where;
++ if (size == 1)
++ addr ^= 0x3;
++ else if (size == 2)
++ addr ^= 0x2;
++
++ if (write) {
++ value = *ptr;
++ if (size == 1)
++ err = put_dbe(value, (u8 *) addr);
++ else if (size == 2)
++ err = put_dbe(value, (u16 *) addr);
++ else if (size == 4)
++ err = put_dbe(value, (u32 *) addr);
++ } else {
++ if (size == 1)
++ err = get_dbe(value, (u8 *) addr);
++ else if (size == 2)
++ err = get_dbe(value, (u16 *) addr);
++ else if (size == 4)
++ err = get_dbe(value, (u32 *) addr);
++ if (err)
++ *ptr = 0xffffffff;
++ else
++ *ptr = value;
++ }
++
++ /* Select Memory access */
++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_CFG_SEL, 0);
++ local_irq_restore(flags);
++
++ return (err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL);
++}
++
++static int ar231x_pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * value)
++{
++ return config_access(devfn, where, size, value, 0);
++}
++
++static int ar231x_pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
++{
++ return config_access(devfn, where, size, &value, 1);
++}
++
++struct pci_ops ar231x_pci_ops = {
++ .read = ar231x_pci_read,
++ .write = ar231x_pci_write,
++};
++
++static struct resource ar231x_mem_resource = {
++ .name = "AR531x PCI MEM",
++ .start = AR531X_MEM_BASE,
++ .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE - 1 + 0x4000000,
++ .flags = IORESOURCE_MEM,
++};
++
++static struct resource ar231x_io_resource = {
++ .name = "AR531x PCI I/O",
++ .start = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE,
++ .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - 1,
++ .flags = IORESOURCE_IO,
++};
++
++struct pci_controller ar231x_pci_controller = {
++ .pci_ops = &ar231x_pci_ops,
++ .mem_resource = &ar231x_mem_resource,
++ .io_resource = &ar231x_io_resource,
++ .mem_offset = 0x00000000UL,
++ .io_offset = 0x00000000UL,
++};
++
++int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
++{
++ return AR2315_IRQ_LCBUS_PCI;
++}
++
++int pcibios_plat_dev_init(struct pci_dev *dev)
++{
++ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 5);
++ pci_write_config_word(dev, 0x40, 0);
++
++ /* Clear any pending Abort or external Interrupts
++ * and enable interrupt processing */
++ ar231x_mask_reg(AR2315_PCI_INTEN_REG, AR2315_PCI_INT_ENABLE, 0);
++ ar231x_write_reg(AR2315_PCI_INT_STATUS, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
++ ar231x_write_reg(AR2315_PCI_INT_MASK, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
++ ar231x_mask_reg(AR2315_PCI_INTEN_REG, 0, AR2315_PCI_INT_ENABLE);
++
++ return 0;
++}
++
++static void
++ar2315_pci_fixup(struct pci_dev *dev)
++{
++ unsigned int devfn = dev->devfn;
++
++ if (dev->bus->number != 0)
++ return;
++
++ /* Only fix up the PCI host settings */
++ if ((PCI_SLOT(devfn) != 3) || (PCI_FUNC(devfn) != 0))
++ return;
++
++ /* Fix up MBARs */
++ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, HOST_PCI_MBAR0);
++ pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, HOST_PCI_MBAR1);
++ pci_write_config_dword(dev, PCI_BASE_ADDRESS_2, HOST_PCI_MBAR2);
++ pci_write_config_dword(dev, PCI_COMMAND,
++ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL |
++ PCI_COMMAND_INVALIDATE | PCI_COMMAND_PARITY | PCI_COMMAND_SERR |
++ PCI_COMMAND_FAST_BACK);
++}
++DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, ar2315_pci_fixup);
++
++static int __init
++ar2315_pci_init(void)
++{
++ u32 reg;
++
++ if (!IS_2315())
++ return -ENODEV;
++
++ configspace = (unsigned long) ioremap_nocache(0x80000000, 1*1024*1024); /* Remap PCI config space */
++ ar231x_pci_controller.io_map_base =
++ (unsigned long) ioremap_nocache(AR531X_MEM_BASE + AR531X_MEM_SIZE, AR531X_IO_SIZE);
++ set_io_port_base(ar231x_pci_controller.io_map_base); /* PCI I/O space */
++
++ reg = ar231x_mask_reg(AR2315_RESET, 0, AR2315_RESET_PCIDMA);
++ msleep(10);
++
++ reg &= ~AR2315_RESET_PCIDMA;
++ ar231x_write_reg(AR2315_RESET, reg);
++ msleep(10);
++
++ ar231x_mask_reg(AR2315_ENDIAN_CTL, 0,
++ AR2315_CONFIG_PCIAHB | AR2315_CONFIG_PCIAHB_BRIDGE);
++
++ ar231x_write_reg(AR2315_PCICLK, AR2315_PCICLK_PLLC_CLKM |
++ (AR2315_PCICLK_IN_FREQ_DIV_6 << AR2315_PCICLK_DIV_S));
++ ar231x_mask_reg(AR2315_AHB_ARB_CTL, 0, AR2315_ARB_PCI);
++ ar231x_mask_reg(AR2315_IF_CTL, AR2315_IF_PCI_CLK_MASK | AR2315_IF_MASK,
++ AR2315_IF_PCI | AR2315_IF_PCI_HOST | AR2315_IF_PCI_INTR |
++ (AR2315_IF_PCI_CLK_OUTPUT_CLK << AR2315_IF_PCI_CLK_SHIFT));
++
++ /* Reset the PCI bus by setting bits 5-4 in PCI_MCFG */
++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
++ AR2315_PCIRST_LOW);
++ msleep(100);
++
++ /* Bring the PCI out of reset */
++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
++ AR2315_PCIRST_HIGH | AR2315_PCICACHE_DIS | 0x8);
++
++ ar231x_write_reg(AR2315_PCI_UNCACHE_CFG,
++ 0x1E | /* 1GB uncached */
++ (1 << 5) | /* Enable uncached */
++ (0x2 << 30) /* Base: 0x80000000 */
++ );
++ ar231x_read_reg(AR2315_PCI_UNCACHE_CFG);
++
++ msleep(500);
++
++ /* dirty hack - anyone with a datasheet that knows the memory map ? */
++ ioport_resource.start = 0x10000000;
++ ioport_resource.end = 0xffffffff;
++ iomem_resource.start = 0x10000000;
++ iomem_resource.end = 0xffffffff;
++
++ register_pci_controller(&ar231x_pci_controller);
++
++ return 0;
++}
++
++arch_initcall(ar2315_pci_init);
+--- /dev/null
++++ b/arch/mips/ar231x/ar2315.c
+@@ -0,0 +1,688 @@
++/*
++ * 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>
++ */
++
++/*
++ * Platform devices for Atheros SoCs
++ */
++
++#include <linux/autoconf.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/string.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/reboot.h>
++#include <linux/delay.h>
++#include <linux/leds.h>
++#include <asm/bootinfo.h>
++#include <asm/reboot.h>
++#include <asm/time.h>
++#include <asm/irq.h>
++#include <asm/io.h>
++#include <asm/gpio.h>
++
++#include <ar231x_platform.h>
++#include <ar2315_regs.h>
++#include <ar231x.h>
++#include "devices.h"
++#include "ar2315.h"
++
++#define IS_2315() (current_cpu_data.cputype == CPU_4KEC)
++
++static u32 gpiointmask = 0, gpiointval = 0;
++
++static inline void ar2315_gpio_irq(void)
++{
++ u32 pend;
++ int bit;
++
++ /* only do one gpio interrupt at a time */
++ pend = (ar231x_read_reg(AR2315_GPIO_DI) ^ gpiointval) & gpiointmask;
++ if (!pend)
++ return;
++
++ bit = fls(pend);
++ pend ^= (1 << bit);
++ gpiointval ^= (1 << bit);
++
++ /* ACK the interrupt only if we handled all bits */
++ if (!pend)
++ ar231x_write_reg(AR2315_ISR, ar231x_read_reg(AR2315_IMR) | ~AR2315_ISR_GPIO);
++
++ do_IRQ(AR531X_GPIO_IRQ_BASE + fls(pend) - 1);
++}
++
++#ifdef CONFIG_ATHEROS_AR2315_PCI
++static inline void pci_abort_irq(void)
++{
++ ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_ABORT_INT);
++}
++
++static inline void pci_ack_irq(void)
++{
++ ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_EXT_INT);
++}
++
++void ar2315_pci_irq(int irq)
++{
++ if (ar231x_read_reg(AR2315_PCI_INT_STATUS) == AR2315_PCI_ABORT_INT)
++ pci_abort_irq();
++ else {
++ do_IRQ(irq);
++ pci_ack_irq();
++ }
++}
++#endif /* CONFIG_ATHEROS_AR2315_PCI */
++
++/*
++ * 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)
++{
++ int pending = read_c0_status() & read_c0_cause();
++
++ if (pending & CAUSEF_IP3)
++ do_IRQ(AR2315_IRQ_WLAN0_INTRS);
++ else if (pending & CAUSEF_IP4)
++ do_IRQ(AR2315_IRQ_ENET0_INTRS);
++#ifdef CONFIG_ATHEROS_AR2315_PCI
++ else if (pending & CAUSEF_IP5)
++ ar2315_pci_irq(AR2315_IRQ_LCBUS_PCI);
++#endif
++ else if (pending & CAUSEF_IP2) {
++ unsigned int misc_intr = ar231x_read_reg(AR2315_ISR) & ar231x_read_reg(AR2315_IMR);
++
++ if (misc_intr & AR2315_ISR_SPI)
++ do_IRQ(AR531X_MISC_IRQ_SPI);
++ else if (misc_intr & AR2315_ISR_TIMER)
++ do_IRQ(AR531X_MISC_IRQ_TIMER);
++ else if (misc_intr & AR2315_ISR_AHB)
++ do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
++ else if (misc_intr & AR2315_ISR_GPIO)
++ ar2315_gpio_irq();
++ else if (misc_intr & AR2315_ISR_UART0)
++ do_IRQ(AR531X_MISC_IRQ_UART0);
++ else if (misc_intr & AR2315_ISR_WD)
++ do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
++ else
++ do_IRQ(AR531X_MISC_IRQ_NONE);
++ } else if (pending & CAUSEF_IP7)
++ do_IRQ(AR531X_IRQ_CPU_CLOCK);
++}
++
++static void ar2315_set_gpiointmask(int gpio, int level)
++{
++ u32 reg;
++
++
++ reg = ar231x_read_reg(AR2315_GPIO_INT);
++ reg &= ~(AR2315_GPIO_INT_M | AR2315_GPIO_INT_LVL_M);
++ reg |= gpio | AR2315_GPIO_INT_LVL(level);
++ ar231x_write_reg(AR2315_GPIO_INT, reg);
++}
++
++static void ar2315_gpio_intr_enable(unsigned int irq)
++{
++ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
++ u32 reg;
++
++ gpiointmask &= ~(1 << gpio);
++
++ /* reconfigure GPIO line as input */
++ reg = ar231x_read_reg(AR2315_GPIO_CR);
++ reg &= ~(AR2315_GPIO_CR_M(gpio));
++ reg |= AR2315_GPIO_CR_I(gpio);
++ ar231x_write_reg(AR2315_GPIO_CR, reg);
++
++ /* Enable interrupt with edge detection */
++ ar2315_set_gpiointmask(gpio, 3);
++}
++
++static void ar2315_gpio_intr_disable(unsigned int irq)
++{
++ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
++
++ gpiointmask |= (1 << gpio);
++
++ /* Disable interrupt */
++ ar2315_set_gpiointmask(gpio, 0);
++}
++
++static struct irq_chip ar2315_gpio_intr_controller = {
++ .typename = "AR2315-GPIO",
++ .disable = ar2315_gpio_intr_disable,
++ .ack = ar2315_gpio_intr_disable,
++ .mask_ack = ar2315_gpio_intr_disable,
++ .unmask = ar2315_gpio_intr_enable,
++ .eoi = ar2315_gpio_intr_enable,
++};
++
++static void
++ar2315_misc_intr_enable(unsigned int irq)
++{
++ unsigned int imr;
++
++ imr = ar231x_read_reg(AR2315_IMR);
++ switch(irq) {
++ case AR531X_MISC_IRQ_SPI:
++ imr |= AR2315_ISR_SPI;
++ break;
++ case AR531X_MISC_IRQ_TIMER:
++ imr |= AR2315_ISR_TIMER;
++ break;
++ case AR531X_MISC_IRQ_AHB_PROC:
++ imr |= AR2315_ISR_AHB;
++ break;
++ case AR531X_MISC_IRQ_GPIO:
++ imr |= AR2315_ISR_GPIO;
++ break;
++ case AR531X_MISC_IRQ_UART0:
++ imr |= AR2315_ISR_UART0;
++ break;
++ case AR531X_MISC_IRQ_WATCHDOG:
++ imr |= AR2315_ISR_WD;
++ break;
++ default:
++ break;
++ }
++ ar231x_write_reg(AR2315_IMR, imr);
++}
++
++static void
++ar2315_misc_intr_disable(unsigned int irq)
++{
++ unsigned int imr;
++
++ imr = ar231x_read_reg(AR2315_IMR);
++ switch(irq) {
++ case AR531X_MISC_IRQ_SPI:
++ imr &= ~AR2315_ISR_SPI;
++ break;
++ case AR531X_MISC_IRQ_TIMER:
++ imr &= ~AR2315_ISR_TIMER;
++ break;
++ case AR531X_MISC_IRQ_AHB_PROC:
++ imr &= ~AR2315_ISR_AHB;
++ break;
++ case AR531X_MISC_IRQ_GPIO:
++ imr &= ~AR2315_ISR_GPIO;
++ break;
++ case AR531X_MISC_IRQ_UART0:
++ imr &= ~AR2315_ISR_UART0;
++ break;
++ case AR531X_MISC_IRQ_WATCHDOG:
++ imr &= ~AR2315_ISR_WD;
++ break;
++ default:
++ break;
++ }
++ ar231x_write_reg(AR2315_IMR, imr);
++}
++
++static unsigned int
++ar2315_misc_intr_startup(unsigned int irq)
++{
++ ar2315_misc_intr_enable(irq);
++ return 0;
++}
++
++static void
++ar2315_misc_intr_end(unsigned int irq)
++{
++ if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
++ ar2315_misc_intr_enable(irq);
++}
++
++
++static struct irq_chip ar2315_misc_intr_controller = {
++ .typename = "AR2315-MISC",
++ .startup = ar2315_misc_intr_startup,
++ .shutdown = ar2315_misc_intr_disable,
++ .enable = ar2315_misc_intr_enable,
++ .disable = ar2315_misc_intr_disable,
++ .ack = ar2315_misc_intr_disable,
++ .end = ar2315_misc_intr_end,
++};
++
++static irqreturn_t ar2315_ahb_proc_handler(int cpl, void *dev_id)
++{
++ ar231x_write_reg(AR2315_AHB_ERR0, AHB_ERROR_DET);
++ ar231x_read_reg(AR2315_AHB_ERR1);
++
++ printk(KERN_ERR "AHB fatal error\n");
++ machine_restart("AHB error"); /* Catastrophic failure */
++
++ return IRQ_HANDLED;
++}
++
++static struct irqaction ar2315_ahb_proc_interrupt = {
++ .handler = ar2315_ahb_proc_handler,
++ .flags = IRQF_DISABLED,
++ .name = "ar2315_ahb_proc_interrupt",
++};
++
++static struct irqaction cascade = {
++ .handler = no_action,
++ .flags = IRQF_DISABLED,
++ .name = "cascade",
++};
++
++void
++ar2315_irq_init(void)
++{
++ int i;
++
++ ar231x_irq_dispatch = ar2315_irq_dispatch;
++ gpiointval = ar231x_read_reg(AR2315_GPIO_DI);
++ for (i = 0; i < AR531X_MISC_IRQ_COUNT; i++) {
++ int irq = AR531X_MISC_IRQ_BASE + i;
++ irq_desc[irq].status = IRQ_DISABLED;
++ irq_desc[irq].action = NULL;
++ irq_desc[irq].depth = 1;
++ irq_desc[irq].chip = &ar2315_misc_intr_controller;
++ }
++ for (i = 0; i < AR531X_GPIO_IRQ_COUNT; i++) {
++ int irq = AR531X_GPIO_IRQ_BASE + i;
++ irq_desc[irq].status = IRQ_DISABLED;
++ irq_desc[irq].action = NULL;
++ irq_desc[irq].depth = 1;
++ irq_desc[irq].chip = &ar2315_gpio_intr_controller;
++ }
++ setup_irq(AR531X_MISC_IRQ_GPIO, &cascade);
++ setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar2315_ahb_proc_interrupt);
++ setup_irq(AR2315_IRQ_MISC_INTRS, &cascade);
++}
++
++const struct ar231x_gpiodev ar2315_gpiodev;
++
++static u32
++ar2315_gpio_get_output(void)
++{
++ u32 reg;
++ reg = ar231x_read_reg(AR2315_GPIO_CR);
++ reg &= ar2315_gpiodev.valid_mask;
++ return reg;
++}
++
++static u32
++ar2315_gpio_set_output(u32 mask, u32 val)
++{
++ u32 reg;
++
++ reg = ar231x_read_reg(AR2315_GPIO_CR);
++ reg &= ~mask;
++ reg |= val;
++ ar231x_write_reg(AR2315_GPIO_CR, reg);
++ return reg;
++}
++
++static u32
++ar2315_gpio_get(void)
++{
++ u32 reg;
++ reg = ar231x_read_reg(AR2315_GPIO_DI);
++ reg &= ar2315_gpiodev.valid_mask;
++ return reg;
++}
++
++static u32
++ar2315_gpio_set(u32 mask, u32 value)
++{
++ u32 reg;
++ reg = ar231x_read_reg(AR2315_GPIO_DO);
++ reg &= ~mask;
++ reg |= value;
++ ar231x_write_reg(AR2315_GPIO_DO, reg);
++ return reg;
++}
++
++const struct ar231x_gpiodev ar2315_gpiodev = {
++ .valid_mask = (1 << 22) - 1,
++ .get_output = ar2315_gpio_get_output,
++ .set_output = ar2315_gpio_set_output,
++ .get = ar2315_gpio_get,
++ .set = ar2315_gpio_set,
++};
++
++static struct ar231x_eth ar2315_eth_data = {
++ .reset_base = AR2315_RESET,
++ .reset_mac = AR2315_RESET_ENET0,
++ .reset_phy = AR2315_RESET_EPHY0,
++ .phy_base = AR2315_ENET0,
++ .config = &ar231x_board,
++};
++
++static struct resource ar2315_spiflash_res[] = {
++ {
++ .name = "flash_base",
++ .flags = IORESOURCE_MEM,
++ .start = KSEG1ADDR(AR2315_SPI_READ),
++ .end = KSEG1ADDR(AR2315_SPI_READ) + 0x1000000 - 1,
++ },
++ {
++ .name = "flash_regs",
++ .flags = IORESOURCE_MEM,
++ .start = 0x11300000,
++ .end = 0x11300012,
++ },
++};
++
++static struct platform_device ar2315_spiflash = {
++ .id = 0,
++ .name = "spiflash",
++ .resource = ar2315_spiflash_res,
++ .num_resources = ARRAY_SIZE(ar2315_spiflash_res)
++};
++
++static struct platform_device ar2315_wdt = {
++ .id = 0,
++ .name = "ar2315_wdt",
++};
++
++#define SPI_FLASH_CTL 0x00
++#define SPI_FLASH_OPCODE 0x04
++#define SPI_FLASH_DATA 0x08
++
++static inline u32
++spiflash_read_reg(int reg)
++{
++ return ar231x_read_reg(KSEG1ADDR(AR2315_SPI) + reg);
++}
++
++static inline void
++spiflash_write_reg(int reg, u32 data)
++{
++ ar231x_write_reg(KSEG1ADDR(AR2315_SPI) + reg, data);
++}
++
++static u32
++spiflash_wait_status(void)
++{
++ u32 reg;
++
++ do {
++ reg = spiflash_read_reg(SPI_FLASH_CTL);
++ } while (reg & SPI_CTL_BUSY);
++
++ return reg;
++}
++
++static u8
++spiflash_probe(void)
++{
++ u32 reg;
++
++ reg = spiflash_wait_status();
++ reg &= ~SPI_CTL_TX_RX_CNT_MASK;
++ reg |= (1 << 4) | 4 | SPI_CTL_START;
++
++ spiflash_write_reg(SPI_FLASH_OPCODE, 0xab);
++ spiflash_write_reg(SPI_FLASH_CTL, reg);
++
++ reg = spiflash_wait_status();
++ reg = spiflash_read_reg(SPI_FLASH_DATA);
++ reg &= 0xff;
++
++ return (u8) reg;
++}
++
++
++#define STM_8MBIT_SIGNATURE 0x13
++#define STM_16MBIT_SIGNATURE 0x14
++#define STM_32MBIT_SIGNATURE 0x15
++#define STM_64MBIT_SIGNATURE 0x16
++#define STM_128MBIT_SIGNATURE 0x17
++
++static u8 __init *
++ar2315_flash_limit(void)
++{
++ u32 flash_size = 0;
++
++ /* probe the flash chip size */
++ switch(spiflash_probe()) {
++ case STM_8MBIT_SIGNATURE:
++ flash_size = 0x00100000;
++ break;
++ case STM_16MBIT_SIGNATURE:
++ flash_size = 0x00200000;
++ break;
++ case STM_32MBIT_SIGNATURE:
++ flash_size = 0x00400000;
++ break;
++ case STM_64MBIT_SIGNATURE:
++ flash_size = 0x00800000;
++ break;
++ case STM_128MBIT_SIGNATURE:
++ flash_size = 0x01000000;
++ break;
++ }
++
++ ar2315_spiflash_res[0].end = ar2315_spiflash_res[0].start +
++ flash_size - 1;
++ return (u8 *) ar2315_spiflash_res[0].end + 1;
++}
++
++#ifdef CONFIG_LEDS_GPIO
++static struct gpio_led ar2315_leds[6];
++static struct gpio_led_platform_data ar2315_led_data = {
++ .leds = (void *) ar2315_leds,
++};
++
++static struct platform_device ar2315_gpio_leds = {
++ .name = "leds-gpio",
++ .id = -1,
++ .dev = {
++ .platform_data = (void *) &ar2315_led_data,
++ }
++};
++
++static void __init
++ar2315_init_gpio(void)
++{
++ static char led_names[6][6];
++ int i, led = 0;
++
++ ar2315_led_data.num_leds = 0;
++ for(i = 1; i < 8; i++)
++ {
++ if((i == AR2315_RESET_GPIO) ||
++ (i == ar231x_board.config->resetConfigGpio))
++ continue;
++
++ if(i == ar231x_board.config->sysLedGpio)
++ strcpy(led_names[led], "wlan");
++ else
++ sprintf(led_names[led], "gpio%d", i);
++
++ ar2315_leds[led].name = led_names[led];
++ ar2315_leds[led].gpio = i;
++ ar2315_leds[led].active_low = 0;
++ led++;
++ }
++ ar2315_led_data.num_leds = led;
++ platform_device_register(&ar2315_gpio_leds);
++}
++#else
++static inline void ar2315_init_gpio(void)
++{
++}
++#endif
++
++int __init
++ar2315_init_devices(void)
++{
++ if (!IS_2315())
++ return 0;
++
++ /* Find board configuration */
++ ar231x_find_config(ar2315_flash_limit());
++ ar2315_eth_data.macaddr = ar231x_board.config->enet0_mac;
++
++ ar2315_init_gpio();
++ platform_device_register(&ar2315_wdt);
++ platform_device_register(&ar2315_spiflash);
++ ar231x_add_ethernet(0, AR2315_ENET0, AR2315_IRQ_ENET0_INTRS,
++ &ar2315_eth_data);
++ ar231x_add_wmac(0, AR2315_WLAN0, AR2315_IRQ_WLAN0_INTRS);
++
++ return 0;
++}
++
++static void
++ar2315_restart(char *command)
++{
++ void (*mips_reset_vec)(void) = (void *) 0xbfc00000;
++
++ local_irq_disable();
++
++ /* try reset the system via reset control */
++ ar231x_write_reg(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) */
++ gpio_direction_output(AR2315_RESET_GPIO, 0);
++ mdelay(100);
++
++ /* 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 __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = {
++ 1,
++ 2,
++ 4,
++ 5
++};
++
++static int __initdata PLLC_DIVIDE_TABLE[5] = {
++ 2,
++ 3,
++ 4,
++ 6,
++ 3
++};
++
++static unsigned int __init
++ar2315_sys_clk(unsigned int clockCtl)
++{
++ unsigned int pllcCtrl,cpuDiv;
++ unsigned int pllcOut,refdiv,fdiv,divby2;
++ unsigned int clkDiv;
++
++ pllcCtrl = ar231x_read_reg(AR2315_PLLC_CTL);
++ refdiv = (pllcCtrl & PLLC_REF_DIV_M) >> PLLC_REF_DIV_S;
++ refdiv = CLOCKCTL1_PREDIVIDE_TABLE[refdiv];
++ fdiv = (pllcCtrl & PLLC_FDBACK_DIV_M) >> PLLC_FDBACK_DIV_S;
++ divby2 = (pllcCtrl & PLLC_ADD_FDBACK_DIV_M) >> PLLC_ADD_FDBACK_DIV_S;
++ divby2 += 1;
++ pllcOut = (40000000/refdiv)*(2*divby2)*fdiv;
++
++
++ /* clkm input selected */
++ switch(clockCtl & CPUCLK_CLK_SEL_M) {
++ case 0:
++ case 1:
++ clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKM_DIV_M) >> PLLC_CLKM_DIV_S];
++ break;
++ case 2:
++ clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKC_DIV_M) >> PLLC_CLKC_DIV_S];
++ break;
++ default:
++ pllcOut = 40000000;
++ clkDiv = 1;
++ break;
++ }
++ cpuDiv = (clockCtl & CPUCLK_CLK_DIV_M) >> CPUCLK_CLK_DIV_S;
++ cpuDiv = cpuDiv * 2 ?: 1;
++ return (pllcOut/(clkDiv * cpuDiv));
++}
++
++static inline unsigned int
++ar2315_cpu_frequency(void)
++{
++ return ar2315_sys_clk(ar231x_read_reg(AR2315_CPUCLK));
++}
++
++static inline unsigned int
++ar2315_apb_frequency(void)
++{
++ return ar2315_sys_clk(ar231x_read_reg(AR2315_AMBACLK));
++}
++
++void __init
++ar2315_time_init(void)
++{
++ mips_hpt_frequency = ar2315_cpu_frequency() / 2;
++}
++
++void __init
++ar2315_prom_init(void)
++{
++ u32 memsize, memcfg, devid;
++
++ if (!IS_2315())
++ return;
++
++ memcfg = ar231x_read_reg(AR2315_MEM_CFG);
++ memsize = 1 + ((memcfg & SDRAM_DATA_WIDTH_M) >> SDRAM_DATA_WIDTH_S);
++ memsize <<= 1 + ((memcfg & SDRAM_COL_WIDTH_M) >> SDRAM_COL_WIDTH_S);
++ memsize <<= 1 + ((memcfg & SDRAM_ROW_WIDTH_M) >> SDRAM_ROW_WIDTH_S);
++ memsize <<= 3;
++ add_memory_region(0, memsize, BOOT_MEM_RAM);
++
++ /* Detect the hardware based on the device ID */
++ devid = ar231x_read_reg(AR2315_SREV) & AR2315_REV_CHIP;
++ switch(devid) {
++ case 0x90:
++ case 0x91:
++ ar231x_devtype = DEV_TYPE_AR2317;
++ break;
++ default:
++ ar231x_devtype = DEV_TYPE_AR2315;
++ break;
++ }
++ ar231x_gpiodev = &ar2315_gpiodev;
++ ar231x_board.devid = devid;
++}
++
++void __init
++ar2315_plat_setup(void)
++{
++ u32 config;
++
++ if (!IS_2315())
++ return;
++
++ /* Clear any lingering AHB errors */
++ config = read_c0_config();
++ write_c0_config(config & ~0x3);
++ ar231x_write_reg(AR2315_AHB_ERR0,AHB_ERROR_DET);
++ ar231x_read_reg(AR2315_AHB_ERR1);
++ ar231x_write_reg(AR2315_WDC, AR2315_WDC_IGNORE_EXPIRATION);
++
++ _machine_restart = ar2315_restart;
++ ar231x_serial_setup(KSEG1ADDR(AR2315_UART0), ar2315_apb_frequency());
++}
+--- /dev/null
++++ b/arch/mips/ar231x/ar2315.h
+@@ -0,0 +1,37 @@
++#ifndef __AR2315_H
++#define __AR2315_H
++
++#ifdef CONFIG_ATHEROS_AR2315
++
++extern void ar2315_irq_init(void);
++extern int ar2315_init_devices(void);
++extern void ar2315_prom_init(void);
++extern void ar2315_plat_setup(void);
++extern void ar2315_time_init(void);
++
++#else
++
++static inline void ar2315_irq_init(void)
++{
++}
++
++static inline int ar2315_init_devices(void)
++{
++ return 0;
++}
++
++static inline void ar2315_prom_init(void)
++{
++}
++
++static inline void ar2315_plat_setup(void)
++{
++}
++
++static inline void ar2315_time_init(void)
++{
++}
++
++#endif
++
++#endif
+--- /dev/null
++++ b/arch/mips/ar231x/ar5312.h
+@@ -0,0 +1,38 @@
++#ifndef __AR5312_H
++#define __AR5312_H
++
++#ifdef CONFIG_ATHEROS_AR5312
++
++extern void ar5312_irq_init(void);
++extern int ar5312_init_devices(void);
++extern void ar5312_prom_init(void);
++extern void ar5312_plat_setup(void);
++extern void ar5312_time_init(void);
++extern void ar5312_time_init(void);
++
++#else
++
++static inline void ar5312_irq_init(void)
++{
++}
++
++static inline int ar5312_init_devices(void)
++{
++ return 0;
++}
++
++static inline void ar5312_prom_init(void)
++{
++}
++
++static inline void ar5312_plat_setup(void)
++{
++}
++
++static inline void ar5312_time_init(void)
++{
++}
++
++#endif
++
++#endif
+--- /dev/null
++++ b/arch/mips/include/asm/mach-ar231x/ar231x.h
+@@ -0,0 +1,54 @@
++#ifndef __AR531X_H
++#define __AR531X_H
++
++#define AR531X_MISC_IRQ_BASE 0x20
++#define AR531X_GPIO_IRQ_BASE 0x30
++
++/* Software's idea of interrupts handled by "CPU Interrupt Controller" */
++#define AR531X_IRQ_NONE MIPS_CPU_IRQ_BASE+0
++#define AR531X_IRQ_CPU_CLOCK MIPS_CPU_IRQ_BASE+7 /* C0_CAUSE: 0x8000 */
++
++/* Miscellaneous interrupts, which share IP6 */
++#define AR531X_MISC_IRQ_NONE AR531X_MISC_IRQ_BASE+0
++#define AR531X_MISC_IRQ_TIMER AR531X_MISC_IRQ_BASE+1
++#define AR531X_MISC_IRQ_AHB_PROC AR531X_MISC_IRQ_BASE+2
++#define AR531X_MISC_IRQ_AHB_DMA AR531X_MISC_IRQ_BASE+3
++#define AR531X_MISC_IRQ_GPIO AR531X_MISC_IRQ_BASE+4
++#define AR531X_MISC_IRQ_UART0 AR531X_MISC_IRQ_BASE+5
++#define AR531X_MISC_IRQ_UART0_DMA AR531X_MISC_IRQ_BASE+6
++#define AR531X_MISC_IRQ_WATCHDOG AR531X_MISC_IRQ_BASE+7
++#define AR531X_MISC_IRQ_LOCAL AR531X_MISC_IRQ_BASE+8
++#define AR531X_MISC_IRQ_SPI AR531X_MISC_IRQ_BASE+9
++#define AR531X_MISC_IRQ_COUNT 10
++
++/* GPIO Interrupts [0..7], share AR531X_MISC_IRQ_GPIO */
++#define AR531X_GPIO_IRQ_NONE AR531X_GPIO_IRQ_BASE+0
++#define AR531X_GPIO_IRQ(n) AR531X_GPIO_IRQ_BASE+n
++#define AR531X_GPIO_IRQ_COUNT 22
++
++static inline u32
++ar231x_read_reg(u32 reg)
++{
++ return __raw_readl((u32 *) reg);
++}
++
++static inline void
++ar231x_write_reg(u32 reg, u32 val)
++{
++ __raw_writel(val, (u32 *)reg);
++}
++
++static inline u32
++ar231x_mask_reg(u32 reg, u32 mask, u32 val)
++{
++ u32 ret;
++
++ ret = ar231x_read_reg(reg);
++ ret &= ~mask;
++ ret |= val;
++ ar231x_write_reg(reg, ret);
++
++ return ret;
++}
++
++#endif
+--- /dev/null
++++ b/arch/mips/ar231x/devices.h
+@@ -0,0 +1,27 @@
++#ifndef __AR231X_DEVICES_H
++#define __AR231X_DEVICES_H
++
++enum {
++ /* handled by ar5312.c */
++ DEV_TYPE_AR2312,
++ DEV_TYPE_AR2313,
++ DEV_TYPE_AR5312,
++
++ /* handled by ar2315.c */
++ DEV_TYPE_AR2315,
++ DEV_TYPE_AR2316,
++ DEV_TYPE_AR2317,
++
++ DEV_TYPE_UNKNOWN
++};
++
++extern int ar231x_devtype;
++extern struct ar231x_board_config ar231x_board;
++extern void (*ar231x_irq_dispatch)(void);
++
++extern int ar231x_find_config(u8 *flash_limit);
++extern void ar231x_serial_setup(u32 mapbase, unsigned int uartclk);
++extern int ar231x_add_wmac(int nr, u32 base, int irq);
++extern int ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata);
++
++#endif
+--- /dev/null
++++ b/arch/mips/ar231x/devices.c
+@@ -0,0 +1,174 @@
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/serial.h>
++#include <linux/serial_core.h>
++#include <linux/serial_8250.h>
++#include <linux/platform_device.h>
++#include <ar231x_platform.h>
++#include <ar231x.h>
++#include "devices.h"
++#include "ar5312.h"
++#include "ar2315.h"
++
++struct ar231x_board_config ar231x_board;
++int ar231x_devtype = DEV_TYPE_UNKNOWN;
++const struct ar231x_gpiodev *ar231x_gpiodev;
++
++static struct resource ar231x_eth0_res[] = {
++ {
++ .name = "eth0_membase",
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .name = "eth0_irq",
++ .flags = IORESOURCE_IRQ,
++ }
++};
++
++static struct resource ar231x_eth1_res[] = {
++ {
++ .name = "eth1_membase",
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .name = "eth1_irq",
++ .flags = IORESOURCE_IRQ,
++ }
++};
++
++static struct platform_device ar231x_eth[] = {
++ {
++ .id = 0,
++ .name = "ar231x-eth",
++ .resource = ar231x_eth0_res,
++ .num_resources = ARRAY_SIZE(ar231x_eth0_res)
++ },
++ {
++ .id = 1,
++ .name = "ar231x-eth",
++ .resource = ar231x_eth1_res,
++ .num_resources = ARRAY_SIZE(ar231x_eth1_res)
++ }
++};
++
++static struct resource ar231x_wmac0_res[] = {
++ {
++ .name = "wmac0_membase",
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .name = "wmac0_irq",
++ .flags = IORESOURCE_IRQ,
++ }
++};
++
++static struct resource ar231x_wmac1_res[] = {
++ {
++ .name = "wmac1_membase",
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .name = "wmac1_irq",
++ .flags = IORESOURCE_IRQ,
++ }
++};
++
++
++static struct platform_device ar231x_wmac[] = {
++ {
++ .id = 0,
++ .name = "ar231x-wmac",
++ .resource = ar231x_wmac0_res,
++ .num_resources = ARRAY_SIZE(ar231x_wmac0_res),
++ .dev.platform_data = &ar231x_board,
++ },
++ {
++ .id = 1,
++ .name = "ar231x-wmac",
++ .resource = ar231x_wmac1_res,
++ .num_resources = ARRAY_SIZE(ar231x_wmac1_res),
++ .dev.platform_data = &ar231x_board,
++ },
++};
++
++static const char *devtype_strings[] = {
++ [DEV_TYPE_AR5312] = "Atheros AR5312",
++ [DEV_TYPE_AR2312] = "Atheros AR2312",
++ [DEV_TYPE_AR2313] = "Atheros AR2313",
++ [DEV_TYPE_AR2315] = "Atheros AR2315",
++ [DEV_TYPE_AR2316] = "Atheros AR2316",
++ [DEV_TYPE_AR2317] = "Atheros AR2317",
++ [DEV_TYPE_UNKNOWN] = "Atheros (unknown)",
++};
++
++const char *get_system_type(void)
++{
++ if ((ar231x_devtype >= ARRAY_SIZE(devtype_strings)) ||
++ !devtype_strings[ar231x_devtype])
++ return devtype_strings[DEV_TYPE_UNKNOWN];
++ return devtype_strings[ar231x_devtype];
++}
++
++
++int __init
++ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata)
++{
++ struct resource *res;
++
++ ar231x_eth[nr].dev.platform_data = pdata;
++ res = &ar231x_eth[nr].resource[0];
++ res->start = base;
++ res->end = base + 0x2000 - 1;
++ res++;
++ res->start = irq;
++ res->end = irq;
++ return platform_device_register(&ar231x_eth[nr]);
++}
++
++void __init
++ar231x_serial_setup(u32 mapbase, unsigned int uartclk)
++{
++ struct uart_port s;
++
++ memset(&s, 0, sizeof(s));
++
++ s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
++ s.iotype = UPIO_MEM;
++ s.irq = AR531X_MISC_IRQ_UART0;
++ s.regshift = 2;
++ s.mapbase = mapbase;
++ s.uartclk = uartclk;
++ s.membase = (void __iomem *)s.mapbase;
++
++ early_serial_setup(&s);
++}
++
++int __init
++ar231x_add_wmac(int nr, u32 base, int irq)
++{
++ struct resource *res;
++
++ ar231x_wmac[nr].dev.platform_data = &ar231x_board;
++ res = &ar231x_wmac[nr].resource[0];
++ res->start = base;
++ res->end = base + 0x10000 - 1;
++ res++;
++ res->start = irq;
++ res->end = irq;
++ return platform_device_register(&ar231x_wmac[nr]);
++}
++
++static int __init ar231x_register_devices(void)
++{
++ static struct resource res = {
++ .start = 0xFFFFFFFF,
++ };
++
++ platform_device_register_simple("GPIODEV", 0, &res, 1);
++ ar5312_init_devices();
++ ar2315_init_devices();
++
++ return 0;
++}
++
++device_initcall(ar231x_register_devices);
projects / openwrt.git / blobdiff