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Openwrt/target/linux/atheros/patches-3.14/100-board.patch
John Crispin cb5902d603 atheros: convert AR2315 GPIO code to platform driver 
Convert gpiolib realization to platform driver and move to the
appropriate subdirectory. Misc GPIO interrupt acknowledgement placed
to the MISC IRQ handler since in fact we can detect only one GPIO state
change.

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

SVN-Revision: 42512
2014-09-12 06:54:10 +00:00

2769 lines
83 KiB
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Raw Blame History

--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -144,6 +144,19 @@ config BCM63XX
help
Support for BCM63XX based boards
+config ATHEROS_AR231X
+ 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 ARCH_REQUIRE_GPIOLIB
+ help
+ Support for AR231x and AR531x based boards
+
config MIPS_COBALT
bool "Cobalt Server"
select CEVT_R4K
@@ -795,6 +808,7 @@ config NLM_XLP_BOARD
endchoice
+source "arch/mips/ar231x/Kconfig"
source "arch/mips/alchemy/Kconfig"
source "arch/mips/ath79/Kconfig"
source "arch/mips/bcm47xx/Kconfig"
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -6,6 +6,7 @@ platforms += ath79
platforms += bcm47xx
platforms += bcm63xx
platforms += cavium-octeon
+platforms += ar231x
platforms += cobalt
platforms += dec
platforms += emma
--- /dev/null
+++ b/arch/mips/ar231x/Platform
@@ -0,0 +1,6 @@
+#
+# Atheros AR531X/AR231X WiSoC
+#
+platform-$(CONFIG_ATHEROS_AR231X) += ar231x/
+cflags-$(CONFIG_ATHEROS_AR231X) += -I$(srctree)/arch/mips/include/asm/mach-ar231x
+load-$(CONFIG_ATHEROS_AR231X) += 0xffffffff80041000
--- /dev/null
+++ b/arch/mips/ar231x/Kconfig
@@ -0,0 +1,9 @@
+config SOC_AR5312
+ bool "Atheros 5312/2312+ support"
+ depends on ATHEROS_AR231X
+ default y
+
+config SOC_AR2315
+ bool "Atheros 2315+ support"
+ depends on ATHEROS_AR231X
+ default y
--- /dev/null
+++ b/arch/mips/ar231x/Makefile
@@ -0,0 +1,13 @@
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 2006 FON Technology, SL.
+# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+# Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
+#
+
+obj-y += board.o prom.o devices.o
+obj-$(CONFIG_SOC_AR5312) += ar5312.o
+obj-$(CONFIG_SOC_AR2315) += ar2315.o
--- /dev/null
+++ b/arch/mips/ar231x/board.c
@@ -0,0 +1,229 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
+ */
+
+#include <generated/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 <linux/irq.h>
+#include <linux/io.h>
+#include <asm/irq_cpu.h>
+#include <asm/reboot.h>
+#include <asm/bootinfo.h>
+#include <asm/time.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 */
+ return (addr[0] == 0x5a) && (addr[1] == 0xa5);
+}
+
+static inline bool check_notempty(u8 *addr)
+{
+ return *(u32 *)addr != 0xffffffff;
+}
+
+static inline bool check_board_data(u8 *flash_limit, u8 *addr, bool broken)
+{
+ /* config magic found */
+ if (*((u32 *)addr) == AR231X_BD_MAGIC)
+ return true;
+
+ if (!broken)
+ return false;
+
+ 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 true;
+ }
+
+ return false;
+}
+
+static u8 * __init find_board_config(u8 *flash_limit, bool broken)
+{
+ u8 *addr;
+ u8 *begin = flash_limit - 0x1000;
+ u8 *end = flash_limit - 0x30000;
+
+ for (addr = begin; addr >= end; addr -= 0x1000)
+ if (check_board_data(flash_limit, addr, broken))
+ return addr;
+
+ return NULL;
+}
+
+static u8 * __init find_radio_config(u8 *flash_limit, u8 *bcfg)
+{
+ u8 *rcfg, *begin, *end;
+
+ /*
+ * Now find the start of Radio Configuration data, using heuristics:
+ * Search forward from Board Configuration data by 0x1000 bytes
+ * at a time until we find non-0xffffffff.
+ */
+ begin = bcfg + 0x1000;
+ end = flash_limit;
+ for (rcfg = begin; rcfg < end; rcfg += 0x1000)
+ if (check_notempty(rcfg) && check_radio_magic(rcfg))
+ return rcfg;
+
+ /* AR2316 relocates radio config to new location */
+ begin = bcfg + 0xf8;
+ end = flash_limit - 0x1000 + 0xf8;
+ for (rcfg = begin; rcfg < end; rcfg += 0x1000)
+ if (check_notempty(rcfg) && check_radio_magic(rcfg))
+ return rcfg;
+
+ pr_warn("WARNING: Could not find Radio Configuration data\n");
+
+ return NULL;
+}
+
+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;
+ u8 *mac_addr;
+ 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) {
+ pr_warn("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) {
+ pr_warn("WARNING: broken board data detected\n");
+ config = ar231x_board.config;
+ if (is_zero_ether_addr(config->enet0_mac)) {
+ pr_info("Fixing up empty mac addresses\n");
+ config->reset_config_gpio = 0xffff;
+ config->sys_led_gpio = 0xffff;
+ random_ether_addr(config->wlan0_mac);
+ config->wlan0_mac[0] &= ~0x06;
+ random_ether_addr(config->enet0_mac);
+ random_ether_addr(config->enet1_mac);
+ }
+ }
+
+ /* Radio config starts 0x100 bytes after board config, regardless
+ * of what the physical layout on the flash chip looks like */
+
+ 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;
+ pr_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);
+
+ mac_addr = &radio_data[0x1d * 2];
+ if (is_broadcast_ether_addr(mac_addr)) {
+ pr_info("Radio MAC is blank; using board-data\n");
+ ether_addr_copy(mac_addr, ar231x_board.config->wlan0_mac);
+ }
+
+ 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_int(void)
+{
+ return CP0_LEGACY_COMPARE_IRQ;
+}
+
+void __init arch_init_irq(void)
+{
+ clear_c0_status(ST0_IM);
+ mips_cpu_irq_init();
+
+ /* Initialize interrupt controllers */
+ 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 ar231x
+ */
+
+#include <linux/init.h>
+#include <generated/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/include/asm/mach-ar231x/ar231x_platform.h
@@ -0,0 +1,85 @@
+#ifndef __ASM_MACH_AR231X_PLATFORM_H
+#define __ASM_MACH_AR231X_PLATFORM_H
+
+#include <linux/etherdevice.h>
+
+/*
+ * This is board-specific data that is stored in a "fixed" location in flash.
+ * It is shared across operating systems, so it should not be changed lightly.
+ * The main reason we need it is in order to extract the ethernet MAC
+ * address(es).
+ */
+struct ar231x_boarddata {
+ u32 magic; /* board data is valid */
+#define AR231X_BD_MAGIC 0x35333131 /* "5311", for all 531x/231x platforms */
+ u16 cksum; /* checksum (starting with BD_REV 2) */
+ u16 rev; /* revision of this struct */
+#define BD_REV 4
+ char board_name[64]; /* Name of board */
+ u16 major; /* Board major number */
+ u16 minor; /* Board minor number */
+ u32 flags; /* Board configuration */
+#define BD_ENET0 0x00000001 /* ENET0 is stuffed */
+#define BD_ENET1 0x00000002 /* ENET1 is stuffed */
+#define BD_UART1 0x00000004 /* UART1 is stuffed */
+#define BD_UART0 0x00000008 /* UART0 is stuffed (dma) */
+#define BD_RSTFACTORY 0x00000010 /* Reset factory defaults stuffed */
+#define BD_SYSLED 0x00000020 /* System LED stuffed */
+#define BD_EXTUARTCLK 0x00000040 /* External UART clock */
+#define BD_CPUFREQ 0x00000080 /* cpu freq is valid in nvram */
+#define BD_SYSFREQ 0x00000100 /* sys freq is set in nvram */
+#define BD_WLAN0 0x00000200 /* Enable WLAN0 */
+#define BD_MEMCAP 0x00000400 /* CAP SDRAM @ mem_cap for testing */
+#define BD_DISWATCHDOG 0x00000800 /* disable system watchdog */
+#define BD_WLAN1 0x00001000 /* Enable WLAN1 (ar5212) */
+#define BD_ISCASPER 0x00002000 /* FLAG for AR2312 */
+#define BD_WLAN0_2G_EN 0x00004000 /* FLAG for radio0_2G */
+#define BD_WLAN0_5G_EN 0x00008000 /* FLAG for radio0_2G */
+#define BD_WLAN1_2G_EN 0x00020000 /* FLAG for radio0_2G */
+#define BD_WLAN1_5G_EN 0x00040000 /* FLAG for radio0_2G */
+ u16 reset_config_gpio; /* Reset factory GPIO pin */
+ u16 sys_led_gpio; /* System LED GPIO pin */
+
+ u32 cpu_freq; /* CPU core frequency in Hz */
+ u32 sys_freq; /* System frequency in Hz */
+ u32 cnt_freq; /* Calculated C0_COUNT frequency */
+
+ u8 wlan0_mac[ETH_ALEN];
+ u8 enet0_mac[ETH_ALEN];
+ u8 enet1_mac[ETH_ALEN];
+
+ u16 pci_id; /* Pseudo PCIID for common code */
+ u16 mem_cap; /* cap bank1 in MB */
+
+ /* version 3 */
+ u8 wlan1_mac[ETH_ALEN]; /* (ar5212) */
+};
+
+#define BOARD_CONFIG_BUFSZ 0x1000
+
+/*
+ * Platform device information for the Wireless MAC
+ */
+struct ar231x_board_config {
+ u16 devid;
+
+ /* board config data */
+ struct ar231x_boarddata *config;
+
+ /* radio calibration data */
+ const char *radio;
+};
+
+/*
+ * Platform device information for the Ethernet MAC
+ */
+struct ar231x_eth {
+ void (*reset_set)(u32);
+ void (*reset_clear)(u32);
+ u32 reset_mac;
+ u32 reset_phy;
+ struct ar231x_board_config *config;
+ char *macaddr;
+};
+
+#endif /* __ASM_MACH_AR231X_PLATFORM_H */
--- /dev/null
+++ b/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h
@@ -0,0 +1,84 @@
+/*
+ * Atheros AR231x/AR531x SoC specific CPU feature overrides
+ *
+ * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This file was derived from: include/asm-mips/cpu-features.h
+ * Copyright (C) 2003, 2004 Ralf Baechle
+ * Copyright (C) 2004 Maciej W. Rozycki
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+#ifndef __ASM_MACH_AR231X_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_AR231X_CPU_FEATURE_OVERRIDES_H
+
+/*
+ * The Atheros AR531x/AR231x SoCs have MIPS 4Kc/4KEc core.
+ */
+#define cpu_has_tlb 1
+#define cpu_has_4kex 1
+#define cpu_has_3k_cache 0
+#define cpu_has_4k_cache 1
+#define cpu_has_tx39_cache 0
+#define cpu_has_sb1_cache 0
+#define cpu_has_fpu 0
+#define cpu_has_32fpr 0
+#define cpu_has_counter 1
+/* #define cpu_has_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_SOC_AR5312)
+# define cpu_has_llsc 1
+#else
+/*
+ * The MIPS 4Kc V0.9 core in the AR5312/AR2312 have problems with the
+ * ll/sc instructions.
+ */
+# define cpu_has_llsc 0
+#endif
+
+#define cpu_has_mips16 0
+#define cpu_has_mdmx 0
+#define cpu_has_mips3d 0
+#define cpu_has_smartmips 0
+
+/* #define cpu_has_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_SOC_AR5312)
+# define cpu_has_mips32r2 1
+#endif
+
+#define cpu_has_mips64r1 0
+#define cpu_has_mips64r2 0
+
+#define cpu_has_dsp 0
+#define cpu_has_mipsmt 0
+
+/* #define cpu_has_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_AR231X_CPU_FEATURE_OVERRIDES_H */
--- /dev/null
+++ b/arch/mips/include/asm/mach-ar231x/dma-coherence.h
@@ -0,0 +1,76 @@
+/*
+ * 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_AR231X_DMA_COHERENCE_H
+#define __ASM_MACH_AR231X_DMA_COHERENCE_H
+
+#include <linux/device.h>
+#include <ar2315_regs.h>
+
+static inline dma_addr_t ar231x_dev_offset(struct device *dev)
+{
+#ifdef CONFIG_PCI
+ extern struct bus_type pci_bus_type;
+
+ if (dev && dev->bus == &pci_bus_type)
+ return AR2315_PCI_HOST_SDRAM_BASEADDR;
+#endif
+ return 0;
+}
+
+static inline dma_addr_t
+plat_map_dma_mem(struct device *dev, void *addr, size_t size)
+{
+ return virt_to_phys(addr) + ar231x_dev_offset(dev);
+}
+
+static inline dma_addr_t
+plat_map_dma_mem_page(struct device *dev, struct page *page)
+{
+ return page_to_phys(page) + ar231x_dev_offset(dev);
+}
+
+static inline unsigned long
+plat_dma_addr_to_phys(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr - ar231x_dev_offset(dev);
+}
+
+static inline void
+plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr, size_t size,
+ enum dma_data_direction direction)
+{
+}
+
+static inline int plat_dma_supported(struct device *dev, u64 mask)
+{
+ return 1;
+}
+
+static inline void plat_extra_sync_for_device(struct device *dev)
+{
+}
+
+static inline int plat_dma_mapping_error(struct device *dev,
+ dma_addr_t dma_addr)
+{
+ return 0;
+}
+
+static inline int plat_device_is_coherent(struct device *dev)
+{
+#ifdef CONFIG_DMA_COHERENT
+ return 1;
+#endif
+#ifdef CONFIG_DMA_NONCOHERENT
+ return 0;
+#endif
+}
+
+#endif /* __ASM_MACH_AR231X_DMA_COHERENCE_H */
--- /dev/null
+++ b/arch/mips/include/asm/mach-ar231x/gpio.h
@@ -0,0 +1,16 @@
+#ifndef __ASM_MACH_AR231X_GPIO_H
+#define __ASM_MACH_AR231X_GPIO_H
+
+#include <asm-generic/gpio.h>
+
+#define gpio_get_value __gpio_get_value
+#define gpio_set_value __gpio_set_value
+#define gpio_cansleep __gpio_cansleep
+#define gpio_to_irq __gpio_to_irq
+
+static inline int irq_to_gpio(unsigned irq)
+{
+ return -EINVAL;
+}
+
+#endif /* __ASM_MACH_AR231X_GPIO_H */
--- /dev/null
+++ b/arch/mips/include/asm/mach-ar231x/reset.h
@@ -0,0 +1,6 @@
+#ifndef __ASM_MACH_AR231X_RESET_H
+#define __ASM_MACH_AR231X_RESET_H
+
+void ar231x_disable_reset_button(void);
+
+#endif /* __ASM_MACH_AR231X_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_MACH_AR231X_WAR_H
+#define __ASM_MACH_AR231X_WAR_H
+
+#define R4600_V1_INDEX_ICACHEOP_WAR 0
+#define R4600_V1_HIT_CACHEOP_WAR 0
+#define R4600_V2_HIT_CACHEOP_WAR 0
+#define R5432_CP0_INTERRUPT_WAR 0
+#define BCM1250_M3_WAR 0
+#define SIBYTE_1956_WAR 0
+#define MIPS4K_ICACHE_REFILL_WAR 0
+#define MIPS_CACHE_SYNC_WAR 0
+#define TX49XX_ICACHE_INDEX_INV_WAR 0
+#define RM9000_CDEX_SMP_WAR 0
+#define ICACHE_REFILLS_WORKAROUND_WAR 0
+#define R10000_LLSC_WAR 0
+#define MIPS34K_MISSED_ITLB_WAR 0
+
+#endif /* __ASM_MACH_AR231X_WAR_H */
--- /dev/null
+++ b/arch/mips/include/asm/mach-ar231x/ar2315_regs.h
@@ -0,0 +1,608 @@
+/*
+ * Register definitions for AR2315+
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006-2008 Felix Fietkau <nbd@openwrt.org>
+ */
+
+#ifndef __ASM_MACH_AR231X_AR2315_REGS_H
+#define __ASM_MACH_AR231X_AR2315_REGS_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 */
+
+/*
+ * Miscellaneous interrupts, which share IP2.
+ */
+#define AR2315_MISC_IRQ_UART0 (AR231X_MISC_IRQ_BASE+0)
+#define AR2315_MISC_IRQ_I2C_RSVD (AR231X_MISC_IRQ_BASE+1)
+#define AR2315_MISC_IRQ_SPI (AR231X_MISC_IRQ_BASE+2)
+#define AR2315_MISC_IRQ_AHB (AR231X_MISC_IRQ_BASE+3)
+#define AR2315_MISC_IRQ_APB (AR231X_MISC_IRQ_BASE+4)
+#define AR2315_MISC_IRQ_TIMER (AR231X_MISC_IRQ_BASE+5)
+#define AR2315_MISC_IRQ_GPIO (AR231X_MISC_IRQ_BASE+6)
+#define AR2315_MISC_IRQ_WATCHDOG (AR231X_MISC_IRQ_BASE+7)
+#define AR2315_MISC_IRQ_IR_RSVD (AR231X_MISC_IRQ_BASE+8)
+#define AR2315_MISC_IRQ_COUNT 9
+
+/*
+ * PCI interrupts, which share IP5
+ * Keep ordered according to AR2315_PCI_INT_XXX bits
+ */
+#define AR2315_PCI_IRQ_BASE 0x50
+#define AR2315_PCI_IRQ_EXT (AR2315_PCI_IRQ_BASE+0)
+#define AR2315_PCI_IRQ_ABORT (AR2315_PCI_IRQ_BASE+1)
+#define AR2315_PCI_IRQ_COUNT 2
+#define AR2315_PCI_IRQ_SHIFT 25 /* in AR2315_PCI_INT_STATUS */
+
+/*
+ * Address map
+ */
+#define AR2315_SPI_READ 0x08000000 /* SPI FLASH */
+#define AR2315_WLAN0 0x10000000 /* Wireless MMR */
+#define AR2315_PCI 0x10100000 /* PCI MMR */
+#define AR2315_SDRAMCTL 0x10300000 /* SDRAM MMR */
+#define AR2315_LOCAL 0x10400000 /* LOCAL BUS MMR */
+#define AR2315_ENET0 0x10500000 /* ETHERNET MMR */
+#define AR2315_DSLBASE 0x11000000 /* RESET CONTROL MMR */
+#define AR2315_UART0 0x11100000 /* UART MMR */
+#define AR2315_SPI_MMR 0x11300000 /* SPI FLASH MMR */
+#define AR2315_PCIEXT 0x80000000 /* pci external */
+#define AR2315_PCIEXT_SZ 0x40000000
+
+/* MII registers offset inside Ethernet MMR region */
+#define AR2315_ENET0_MII (AR2315_ENET0 + 0x14)
+
+/*
+ * Cold 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
+
+/*
+ * Reset register
+ */
+#define AR2315_RESET (AR2315_DSLBASE + 0x0004)
+
+/* warm reset WLAN0 MAC */
+#define AR2315_RESET_WARM_WLAN0_MAC 0x00000001
+/* warm reset WLAN0 BaseBand */
+#define AR2315_RESET_WARM_WLAN0_BB 0x00000002
+/* warm reset MPEG-TS */
+#define AR2315_RESET_MPEGTS_RSVD 0x00000004
+/* warm reset PCI ahb/dma */
+#define AR2315_RESET_PCIDMA 0x00000008
+/* warm reset memory controller */
+#define AR2315_RESET_MEMCTL 0x00000010
+/* warm reset local bus */
+#define AR2315_RESET_LOCAL 0x00000020
+/* warm reset I2C bus */
+#define AR2315_RESET_I2C_RSVD 0x00000040
+/* warm reset SPI interface */
+#define AR2315_RESET_SPI 0x00000080
+/* warm reset UART0 */
+#define AR2315_RESET_UART0 0x00000100
+/* warm reset IR interface */
+#define AR2315_RESET_IR_RSVD 0x00000200
+/* cold reset ENET0 phy */
+#define AR2315_RESET_EPHY0 0x00000400
+/* cold reset ENET0 mac */
+#define AR2315_RESET_ENET0 0x00000800
+
+/*
+ * AHB master arbitration control
+ */
+#define AR2315_AHB_ARB_CTL (AR2315_DSLBASE + 0x0008)
+
+/* CPU, default */
+#define AR2315_ARB_CPU 0x00000001
+/* WLAN */
+#define AR2315_ARB_WLAN 0x00000002
+/* MPEG-TS */
+#define AR2315_ARB_MPEGTS_RSVD 0x00000004
+/* LOCAL */
+#define AR2315_ARB_LOCAL 0x00000008
+/* PCI */
+#define AR2315_ARB_PCI 0x00000010
+/* Ethernet */
+#define AR2315_ARB_ETHERNET 0x00000020
+/* retry policy, debug only */
+#define AR2315_ARB_RETRY 0x00000100
+
+/*
+ * Config Register
+ */
+#define AR2315_ENDIAN_CTL (AR2315_DSLBASE + 0x000c)
+
+/* EC - AHB bridge endianess */
+#define AR2315_CONFIG_AHB 0x00000001
+/* WLAN byteswap */
+#define AR2315_CONFIG_WLAN 0x00000002
+/* MPEG-TS byteswap */
+#define AR2315_CONFIG_MPEGTS_RSVD 0x00000004
+/* PCI byteswap */
+#define AR2315_CONFIG_PCI 0x00000008
+/* Memory controller endianess */
+#define AR2315_CONFIG_MEMCTL 0x00000010
+/* Local bus byteswap */
+#define AR2315_CONFIG_LOCAL 0x00000020
+/* Ethernet byteswap */
+#define AR2315_CONFIG_ETHERNET 0x00000040
+
+/* CPU write buffer merge */
+#define AR2315_CONFIG_MERGE 0x00000200
+/* CPU big endian */
+#define AR2315_CONFIG_CPU 0x00000400
+#define AR2315_CONFIG_PCIAHB 0x00000800
+#define AR2315_CONFIG_PCIAHB_BRIDGE 0x00001000
+/* SPI byteswap */
+#define AR2315_CONFIG_SPI 0x00008000
+#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, AR231X 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
+/* only for emulation with separate pins */
+#define AR2315_IF_ALL 3
+#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 MMR base address */
+#define AR2315_GPIO (AR2315_DSLBASE + 0x0088)
+
+#define AR2315_RESET_GPIO 5
+
+/*
+ * 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
+
+/*
+ * 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_ISR (AR2315_PCI + 0x0500) /* write one to clr */
+#define AR2315_PCI_INT_TX 0x00000001 /* Desc In Completed */
+#define AR2315_PCI_INT_TXOK 0x00000002 /* Desc In OK */
+#define AR2315_PCI_INT_TXERR 0x00000004 /* Desc In ERR */
+#define AR2315_PCI_INT_TXEOL 0x00000008 /* Desc In End-of-List */
+#define AR2315_PCI_INT_RX 0x00000010 /* Desc Out Completed */
+#define AR2315_PCI_INT_RXOK 0x00000020 /* Desc Out OK */
+#define AR2315_PCI_INT_RXERR 0x00000040 /* Desc Out ERR */
+#define AR2315_PCI_INT_RXEOL 0x00000080 /* Desc Out EOL */
+#define AR2315_PCI_INT_TXOOD 0x00000200 /* Desc In Out-of-Desc */
+#define AR2315_PCI_INT_DESCMASK 0x0000FFFF /* Desc Mask */
+#define AR2315_PCI_INT_EXT 0x02000000 /* Extern PCI INTA */
+#define AR2315_PCI_INT_ABORT 0x04000000 /* PCI bus abort event */
+
+#define AR2315_PCI_IMR (AR2315_PCI + 0x0504) /* mask _PCI_ISR bits */
+
+#define AR2315_PCI_IER (AR2315_PCI + 0x0508) /* global PCI int en */
+#define AR2315_PCI_IER_DISABLE 0x00 /* disable pci interrupts */
+#define AR2315_PCI_IER_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 */
+#define AR2315_IRCTL_SAMPLECLK_SHFT 1
+#define AR2315_IRCTL_OUTPUTCLK_MASK 0x03ffc000 /* Output clk div */
+#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 in polarity */
+#define AR2315_IRCFG_INVOUT 0x00000002 /* invert out 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
+
+/*
+ * We need some arbitrary non-zero value to be programmed to the BAR1 register
+ * of PCI host controller to enable DMA. The same value should be used as the
+ * offset to calculate the physical address of DMA buffer for PCI devices.
+ */
+#define AR2315_PCI_HOST_SDRAM_BASEADDR 0x20000000
+
+/* ??? access BAR */
+#define AR2315_PCI_HOST_MBAR0 0x10000000
+/* RAM access BAR */
+#define AR2315_PCI_HOST_MBAR1 AR2315_PCI_HOST_SDRAM_BASEADDR
+/* ??? access BAR */
+#define AR2315_PCI_HOST_MBAR2 0x30000000
+
+#endif /* __ASM_MACH_AR231X_AR2315_REGS_H */
--- /dev/null
+++ b/arch/mips/include/asm/mach-ar231x/ar5312_regs.h
@@ -0,0 +1,235 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+#ifndef __ASM_MACH_AR231X_AR5312_REGS_H
+#define __ASM_MACH_AR231X_AR5312_REGS_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 */
+
+/*
+ * Miscellaneous interrupts, which share IP6.
+ */
+#define AR5312_MISC_IRQ_TIMER (AR231X_MISC_IRQ_BASE+0)
+#define AR5312_MISC_IRQ_AHB_PROC (AR231X_MISC_IRQ_BASE+1)
+#define AR5312_MISC_IRQ_AHB_DMA (AR231X_MISC_IRQ_BASE+2)
+#define AR5312_MISC_IRQ_GPIO (AR231X_MISC_IRQ_BASE+3)
+#define AR5312_MISC_IRQ_UART0 (AR231X_MISC_IRQ_BASE+4)
+#define AR5312_MISC_IRQ_UART0_DMA (AR231X_MISC_IRQ_BASE+5)
+#define AR5312_MISC_IRQ_WATCHDOG (AR231X_MISC_IRQ_BASE+6)
+#define AR5312_MISC_IRQ_LOCAL (AR231X_MISC_IRQ_BASE+7)
+#define AR5312_MISC_IRQ_SPI (AR231X_MISC_IRQ_BASE+8)
+#define AR5312_MISC_IRQ_COUNT 9
+
+/*
+ * Address Map
+ */
+#define AR5312_WLAN0 0x18000000
+#define AR5312_WLAN1 0x18500000
+#define AR5312_ENET0 0x18100000
+#define AR5312_ENET1 0x18200000
+#define AR5312_SDRAMCTL 0x18300000
+#define AR5312_FLASHCTL 0x18400000
+#define AR5312_APBBASE 0x1c000000
+#define AR5312_UART0 0x1c000000 /* UART MMR */
+#define AR5312_FLASH 0x1e000000
+
+/*
+ * AR5312_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 AR5312_NUM_ENET_MAC 2
+
+/*
+ * Need these defines to determine true number of ethernet MACs
+ */
+#define AR5312_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
+#define AR5312_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
+#define AR5312_AR2313_REV8 0x0058 /* AR2313 WMAC (AP43-030) */
+
+/* MII registers offset inside Ethernet MMR region */
+#define AR5312_ENET0_MII (AR5312_ENET0 + 0x14)
+#define AR5312_ENET1_MII (AR5312_ENET1 + 0x14)
+
+/*
+ * AR5312_NUM_WMAC defines the number of Wireless MACs that\
+ * should be considered available.
+ */
+#define AR5312_NUM_WMAC 2
+
+/* Reset/Timer Block Address Map */
+#define AR5312_RESETTMR (AR5312_APBBASE + 0x3000)
+#define AR5312_TIMER (AR5312_RESETTMR + 0x0000) /* countdown timer */
+#define AR5312_WD_CTRL (AR5312_RESETTMR + 0x0008) /* watchdog cntrl */
+#define AR5312_WD_TIMER (AR5312_RESETTMR + 0x000c) /* watchdog timer */
+#define AR5312_ISR (AR5312_RESETTMR + 0x0010) /* Intr Status Reg */
+#define AR5312_IMR (AR5312_RESETTMR + 0x0014) /* Intr Mask Reg */
+#define AR5312_RESET (AR5312_RESETTMR + 0x0020)
+#define AR5312_CLOCKCTL1 (AR5312_RESETTMR + 0x0064)
+#define AR5312_SCRATCH (AR5312_RESETTMR + 0x006c)
+#define AR5312_PROCADDR (AR5312_RESETTMR + 0x0070)
+#define AR5312_PROC1 (AR5312_RESETTMR + 0x0074)
+#define AR5312_DMAADDR (AR5312_RESETTMR + 0x0078)
+#define AR5312_DMA1 (AR5312_RESETTMR + 0x007c)
+#define AR5312_ENABLE (AR5312_RESETTMR + 0x0080) /* interface enb */
+#define AR5312_REV (AR5312_RESETTMR + 0x0090) /* revision */
+
+/* AR5312_WD_CTRL register bit field definitions */
+#define AR5312_WD_CTRL_IGNORE_EXPIRATION 0x0000
+#define AR5312_WD_CTRL_NMI 0x0001
+#define AR5312_WD_CTRL_RESET 0x0002
+
+/* AR5312_ISR register bit field definitions */
+#define AR5312_ISR_TIMER 0x0001
+#define AR5312_ISR_AHBPROC 0x0002
+#define AR5312_ISR_AHBDMA 0x0004
+#define AR5312_ISR_GPIO 0x0008
+#define AR5312_ISR_UART0 0x0010
+#define AR5312_ISR_UART0DMA 0x0020
+#define AR5312_ISR_WD 0x0040
+#define AR5312_ISR_LOCAL 0x0080
+
+/* AR5312_RESET register bit field definitions */
+#define AR5312_RESET_SYSTEM 0x00000001 /* cold reset full system */
+#define AR5312_RESET_PROC 0x00000002 /* cold reset MIPS core */
+#define AR5312_RESET_WLAN0 0x00000004 /* cold reset WLAN MAC and BB */
+#define AR5312_RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */
+#define AR5312_RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */
+#define AR5312_RESET_ENET0 0x00000020 /* cold reset ENET0 mac */
+#define AR5312_RESET_ENET1 0x00000040 /* cold reset ENET1 mac */
+#define AR5312_RESET_UART0 0x00000100 /* cold reset UART0 (high speed) */
+#define AR5312_RESET_WLAN1 0x00000200 /* cold reset WLAN MAC/BB */
+#define AR5312_RESET_APB 0x00000400 /* cold reset APB (ar5312) */
+#define AR5312_RESET_WARM_PROC 0x00001000 /* warm reset MIPS core */
+#define AR5312_RESET_WARM_WLAN0_MAC 0x00002000 /* warm reset WLAN0 MAC */
+#define AR5312_RESET_WARM_WLAN0_BB 0x00004000 /* warm reset WLAN0 BaseBand */
+#define AR5312_RESET_NMI 0x00010000 /* send an NMI to the processor */
+#define AR5312_RESET_WARM_WLAN1_MAC 0x00020000 /* warm reset WLAN1 mac */
+#define AR5312_RESET_WARM_WLAN1_BB 0x00040000 /* warm reset WLAN1 baseband */
+#define AR5312_RESET_LOCAL_BUS 0x00080000 /* reset local bus */
+#define AR5312_RESET_WDOG 0x00100000 /* last reset was a watchdog */
+
+#define AR5312_RESET_WMAC0_BITS \
+ (AR5312_RESET_WLAN0 |\
+ AR5312_RESET_WARM_WLAN0_MAC |\
+ AR5312_RESET_WARM_WLAN0_BB)
+
+#define AR5312_RESET_WMAC1_BITS \
+ (AR5312_RESET_WLAN1 |\
+ AR5312_RESET_WARM_WLAN1_MAC |\
+ AR5312_RESET_WARM_WLAN1_BB)
+
+/* AR5312_CLOCKCTL1 register bit field definitions */
+#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
+#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
+#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
+#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
+#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
+
+/* Valid for AR5312 and AR2312 */
+#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
+#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
+#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
+#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
+#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
+
+/* Valid for AR2313 */
+#define AR2313_CLOCKCTL1_PREDIVIDE_MASK 0x00003000
+#define AR2313_CLOCKCTL1_PREDIVIDE_SHIFT 12
+#define AR2313_CLOCKCTL1_MULTIPLIER_MASK 0x001f0000
+#define AR2313_CLOCKCTL1_MULTIPLIER_SHIFT 16
+#define AR2313_CLOCKCTL1_DOUBLER_MASK 0x00000000
+
+/* AR5312_ENABLE register bit field definitions */
+#define AR5312_ENABLE_WLAN0 0x0001
+#define AR5312_ENABLE_ENET0 0x0002
+#define AR5312_ENABLE_ENET1 0x0004
+#define AR5312_ENABLE_UART_AND_WLAN1_PIO 0x0008 /* UART, and WLAN1 PIOs */
+#define AR5312_ENABLE_WLAN1_DMA 0x0010 /* WLAN1 DMAs */
+#define AR5312_ENABLE_WLAN1 \
+ (AR5312_ENABLE_UART_AND_WLAN1_PIO |\
+ AR5312_ENABLE_WLAN1_DMA)
+
+/* AR5312_REV register bit field definitions */
+#define AR5312_REV_WMAC_MAJ 0xf000
+#define AR5312_REV_WMAC_MAJ_S 12
+#define AR5312_REV_WMAC_MIN 0x0f00
+#define AR5312_REV_WMAC_MIN_S 8
+#define AR5312_REV_MAJ 0x00f0
+#define AR5312_REV_MAJ_S 4
+#define AR5312_REV_MIN 0x000f
+#define AR5312_REV_MIN_S 0
+#define AR5312_REV_CHIP (AR5312_REV_MAJ|AR5312_REV_MIN)
+
+/* Major revision numbers, bits 7..4 of Revision ID register */
+#define AR5312_REV_MAJ_AR5312 0x4
+#define AR5312_REV_MAJ_AR2313 0x5
+
+/* Minor revision numbers, bits 3..0 of Revision ID register */
+#define AR5312_REV_MIN_DUAL 0x0 /* Dual WLAN version */
+#define AR5312_REV_MIN_SINGLE 0x1 /* Single WLAN version */
+
+/* AR5312_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_MW8 0x00000000 /* Memory width x8 */
+#define FLASHCTL_MW16 0x10000000 /* Memory width x16 */
+#define FLASHCTL_MW32 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 AR5312_FLASHCTL0 (AR5312_FLASHCTL + 0x00)
+#define AR5312_FLASHCTL1 (AR5312_FLASHCTL + 0x04)
+#define AR5312_FLASHCTL2 (AR5312_FLASHCTL + 0x08)
+
+/* ARM SDRAM Controller -- just enough to determine memory size */
+#define AR5312_MEM_CFG1 (AR5312_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
+
+#define AR5312_GPIO (AR5312_APBBASE + 0x2000)
+
+#endif /* __ASM_MACH_AR231X_AR5312_REGS_H */
--- /dev/null
+++ b/arch/mips/ar231x/ar5312.c
@@ -0,0 +1,476 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
+ */
+
+/*
+ * Platform devices for Atheros SoCs
+ */
+
+#include <generated/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 <linux/gpio.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+
+#include <ar231x_platform.h>
+#include <ar5312_regs.h>
+#include <ar231x.h>
+#include "devices.h"
+#include "ar5312.h"
+
+static void ar5312_misc_irq_handler(unsigned irq, struct irq_desc *desc)
+{
+ unsigned int ar231x_misc_intrs = ar231x_read_reg(AR5312_ISR) &
+ ar231x_read_reg(AR5312_IMR);
+
+ if (ar231x_misc_intrs & AR5312_ISR_TIMER) {
+ generic_handle_irq(AR5312_MISC_IRQ_TIMER);
+ (void)ar231x_read_reg(AR5312_TIMER);
+ } else if (ar231x_misc_intrs & AR5312_ISR_AHBPROC)
+ generic_handle_irq(AR5312_MISC_IRQ_AHB_PROC);
+ else if ((ar231x_misc_intrs & AR5312_ISR_UART0))
+ generic_handle_irq(AR5312_MISC_IRQ_UART0);
+ else if (ar231x_misc_intrs & AR5312_ISR_WD)
+ generic_handle_irq(AR5312_MISC_IRQ_WATCHDOG);
+ else
+ spurious_interrupt();
+}
+
+static asmlinkage 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)
+ do_IRQ(AR5312_IRQ_MISC_INTRS);
+ else if (pending & CAUSEF_IP7)
+ do_IRQ(AR231X_IRQ_CPU_CLOCK);
+ else
+ spurious_interrupt();
+}
+
+/* Enable the specified AR5312_MISC_IRQ interrupt */
+static void
+ar5312_misc_irq_unmask(struct irq_data *d)
+{
+ unsigned int imr;
+
+ imr = ar231x_read_reg(AR5312_IMR);
+ imr |= 1 << (d->irq - AR231X_MISC_IRQ_BASE);
+ ar231x_write_reg(AR5312_IMR, imr);
+}
+
+/* Disable the specified AR5312_MISC_IRQ interrupt */
+static void
+ar5312_misc_irq_mask(struct irq_data *d)
+{
+ unsigned int imr;
+
+ imr = ar231x_read_reg(AR5312_IMR);
+ imr &= ~(1 << (d->irq - AR231X_MISC_IRQ_BASE));
+ ar231x_write_reg(AR5312_IMR, imr);
+ ar231x_read_reg(AR5312_IMR); /* flush write buffer */
+}
+
+static struct irq_chip ar5312_misc_irq_chip = {
+ .name = "AR5312-MISC",
+ .irq_unmask = ar5312_misc_irq_unmask,
+ .irq_mask = ar5312_misc_irq_mask,
+};
+
+static irqreturn_t ar5312_ahb_proc_handler(int cpl, void *dev_id)
+{
+ u32 proc1 = ar231x_read_reg(AR5312_PROC1);
+ u32 proc_addr = ar231x_read_reg(AR5312_PROCADDR); /* clears error */
+ u32 dma1 = ar231x_read_reg(AR5312_DMA1);
+ u32 dma_addr = ar231x_read_reg(AR5312_DMAADDR); /* clears error */
+
+ pr_emerg("AHB interrupt: PROCADDR=0x%8.8x PROC1=0x%8.8x DMAADDR=0x%8.8x DMA1=0x%8.8x\n",
+ proc_addr, proc1, dma_addr, dma1);
+
+ machine_restart("AHB error"); /* Catastrophic failure */
+ return IRQ_HANDLED;
+}
+
+static struct irqaction ar5312_ahb_proc_interrupt = {
+ .handler = ar5312_ahb_proc_handler,
+ .name = "ar5312_ahb_proc_interrupt",
+};
+
+void __init ar5312_irq_init(void)
+{
+ int i;
+
+ if (!is_5312())
+ return;
+
+ ar231x_irq_dispatch = ar5312_irq_dispatch;
+ for (i = 0; i < AR5312_MISC_IRQ_COUNT; i++) {
+ int irq = AR231X_MISC_IRQ_BASE + i;
+
+ irq_set_chip_and_handler(irq, &ar5312_misc_irq_chip,
+ handle_level_irq);
+ }
+ setup_irq(AR5312_MISC_IRQ_AHB_PROC, &ar5312_ahb_proc_interrupt);
+ irq_set_chained_handler(AR5312_IRQ_MISC_INTRS, ar5312_misc_irq_handler);
+}
+
+static void ar5312_device_reset_set(u32 mask)
+{
+ u32 val;
+
+ val = ar231x_read_reg(AR5312_RESET);
+ ar231x_write_reg(AR5312_RESET, val | mask);
+}
+
+static void ar5312_device_reset_clear(u32 mask)
+{
+ u32 val;
+
+ val = ar231x_read_reg(AR5312_RESET);
+ ar231x_write_reg(AR5312_RESET, val & ~mask);
+}
+
+static struct physmap_flash_data ar5312_flash_data = {
+ .width = 2,
+};
+
+static struct resource ar5312_flash_resource = {
+ .start = AR5312_FLASH,
+ .end = AR5312_FLASH + 0x800000 - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct ar231x_eth ar5312_eth0_data = {
+ .reset_set = ar5312_device_reset_set,
+ .reset_clear = ar5312_device_reset_clear,
+ .reset_mac = AR5312_RESET_ENET0,
+ .reset_phy = AR5312_RESET_EPHY0,
+ .config = &ar231x_board,
+};
+
+static struct ar231x_eth ar5312_eth1_data = {
+ .reset_set = ar5312_device_reset_set,
+ .reset_clear = ar5312_device_reset_clear,
+ .reset_mac = AR5312_RESET_ENET1,
+ .reset_phy = AR5312_RESET_EPHY1,
+ .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,
+};
+#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(AR5312_FLASHCTL0) & FLASHCTL_MW);
+
+ ar231x_write_reg(AR5312_FLASHCTL0, ctl);
+
+ /* Disable other flash banks */
+ ar231x_write_reg(AR5312_FLASHCTL1,
+ ar231x_read_reg(AR5312_FLASHCTL1) &
+ ~(FLASHCTL_E | FLASHCTL_AC));
+
+ ar231x_write_reg(AR5312_FLASHCTL2,
+ ar231x_read_reg(AR5312_FLASHCTL2) &
+ ~(FLASHCTL_E | FLASHCTL_AC));
+
+ return (char *)KSEG1ADDR(AR5312_FLASH + 0x800000);
+}
+
+int __init ar5312_init_devices(void)
+{
+ struct ar231x_boarddata *config;
+ u32 fctl = 0;
+ u8 *c;
+
+ if (!is_5312())
+ return 0;
+
+ /* Locate board/radio config data */
+ ar231x_find_config(ar5312_flash_limit());
+ config = ar231x_board.config;
+
+ /* 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(AR5312_FLASHCTL) & FLASHCTL_MW;
+ switch (fctl) {
+ case FLASHCTL_MW16:
+ ar5312_flash_data.width = 2;
+ break;
+ case FLASHCTL_MW8:
+ default:
+ ar5312_flash_data.width = 1;
+ break;
+ }
+
+ platform_device_register(&ar5312_physmap_flash);
+
+#ifdef CONFIG_LEDS_GPIO
+ ar5312_leds[0].gpio = config->sys_led_gpio;
+ platform_device_register(&ar5312_gpio_leds);
+#endif
+
+ /* Fix up MAC addresses if necessary */
+ if (is_broadcast_ether_addr(config->enet0_mac))
+ ether_addr_copy(config->enet0_mac, config->enet1_mac);
+
+ /* If ENET0 and ENET1 have the same mac address,
+ * increment the one from ENET1 */
+ if (ether_addr_equal(config->enet0_mac, config->enet1_mac)) {
+ 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, AR5312_ENET0, "eth0_mii",
+ AR5312_ENET0_MII, AR5312_IRQ_ENET0_INTRS,
+ &ar5312_eth0_data);
+
+ ar5312_eth1_data.macaddr = config->enet1_mac;
+ ar231x_add_ethernet(1, AR5312_ENET1, "eth1_mii",
+ AR5312_ENET1_MII, AR5312_IRQ_ENET1_INTRS,
+ &ar5312_eth1_data);
+
+ if (!ar231x_board.radio)
+ return 0;
+
+ if (!(config->flags & BD_WLAN0))
+ break;
+
+ ar231x_add_wmac(0, AR5312_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.reset_phy = ar5312_eth0_data.reset_phy;
+ ar5312_eth1_data.macaddr = config->enet0_mac;
+ ar231x_add_ethernet(1, AR5312_ENET1, "eth0_mii",
+ AR5312_ENET0_MII, AR5312_IRQ_ENET1_INTRS,
+ &ar5312_eth1_data);
+
+ if (!ar231x_board.radio)
+ return 0;
+ break;
+ default:
+ break;
+ }
+
+ if (config->flags & BD_WLAN1)
+ ar231x_add_wmac(1, AR5312_WLAN1, AR5312_IRQ_WLAN1_INTRS);
+
+ return 0;
+}
+
+static void ar5312_restart(char *command)
+{
+ /* reset the system */
+ local_irq_disable();
+ while (1)
+ ar231x_write_reg(AR5312_RESET, AR5312_RESET_SYSTEM);
+}
+
+/*
+ * This table is indexed by bits 5..4 of the CLOCKCTL1 register
+ * to determine the predevisor value.
+ */
+static int clockctl1_predivide_table[4] __initdata = { 1, 2, 4, 5 };
+
+static int __init
+ar5312_cpu_frequency(void)
+{
+ unsigned int scratch;
+ unsigned int predivide_mask, predivide_shift;
+ unsigned int multiplier_mask, multiplier_shift;
+ unsigned int clock_ctl1, predivide_select, predivisor, multiplier;
+ unsigned int doubler_mask;
+ u16 devid;
+
+ /* Trust the bootrom's idea of cpu frequency. */
+ scratch = ar231x_read_reg(AR5312_SCRATCH);
+ if (scratch)
+ return scratch;
+
+ devid = ar231x_read_reg(AR5312_REV);
+ devid &= AR5312_REV_MAJ;
+ devid >>= AR5312_REV_MAJ_S;
+ if (devid == AR5312_REV_MAJ_AR2313) {
+ predivide_mask = AR2313_CLOCKCTL1_PREDIVIDE_MASK;
+ predivide_shift = AR2313_CLOCKCTL1_PREDIVIDE_SHIFT;
+ multiplier_mask = AR2313_CLOCKCTL1_MULTIPLIER_MASK;
+ multiplier_shift = AR2313_CLOCKCTL1_MULTIPLIER_SHIFT;
+ doubler_mask = AR2313_CLOCKCTL1_DOUBLER_MASK;
+ } else { /* AR5312 and AR2312 */
+ predivide_mask = AR5312_CLOCKCTL1_PREDIVIDE_MASK;
+ predivide_shift = AR5312_CLOCKCTL1_PREDIVIDE_SHIFT;
+ multiplier_mask = AR5312_CLOCKCTL1_MULTIPLIER_MASK;
+ multiplier_shift = AR5312_CLOCKCTL1_MULTIPLIER_SHIFT;
+ doubler_mask = AR5312_CLOCKCTL1_DOUBLER_MASK;
+ }
+
+ /*
+ * Clocking is derived from a fixed 40MHz input clock.
+ *
+ * cpu_freq = input_clock * MULT (where MULT is PLL multiplier)
+ * sys_freq = cpu_freq / 4 (used for APB clock, serial,
+ * flash, Timer, Watchdog Timer)
+ *
+ * cnt_freq = cpu_freq / 2 (use for CPU count/compare)
+ *
+ * So, for example, with a PLL multiplier of 5, we have
+ *
+ * cpu_freq = 200MHz
+ * sys_freq = 50MHz
+ * cnt_freq = 100MHz
+ *
+ * We compute the CPU frequency, based on PLL settings.
+ */
+
+ clock_ctl1 = ar231x_read_reg(AR5312_CLOCKCTL1);
+ predivide_select = (clock_ctl1 & predivide_mask) >> predivide_shift;
+ predivisor = clockctl1_predivide_table[predivide_select];
+ multiplier = (clock_ctl1 & multiplier_mask) >> multiplier_shift;
+
+ if (clock_ctl1 & doubler_mask)
+ multiplier = 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;
+
+ /* Detect memory size */
+ memcfg = ar231x_read_reg(AR5312_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);
+
+ devid = ar231x_read_reg(AR5312_REV);
+ devid >>= AR5312_REV_WMAC_MIN_S;
+ devid &= AR5312_REV_CHIP;
+ ar231x_board.devid = (u16)devid;
+}
+
+void __init
+ar5312_plat_setup(void)
+{
+ if (!is_5312())
+ return;
+
+ /* Clear any lingering AHB errors */
+ ar231x_read_reg(AR5312_PROCADDR);
+ ar231x_read_reg(AR5312_DMAADDR);
+ ar231x_write_reg(AR5312_WD_CTRL, AR5312_WD_CTRL_IGNORE_EXPIRATION);
+
+ _machine_restart = ar5312_restart;
+ ar231x_serial_setup(AR5312_UART0, AR5312_MISC_IRQ_UART0,
+ ar5312_sys_frequency());
+}
+
--- /dev/null
+++ b/arch/mips/ar231x/ar2315.c
@@ -0,0 +1,431 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
+ */
+
+/*
+ * Platform devices for Atheros SoCs
+ */
+
+#include <generated/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 <linux/gpio.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+
+#include <ar231x_platform.h>
+#include <ar2315_regs.h>
+#include <ar231x.h>
+#include "devices.h"
+#include "ar2315.h"
+
+static void ar2315_misc_irq_handler(unsigned irq, struct irq_desc *desc)
+{
+ unsigned int misc_intr = ar231x_read_reg(AR2315_ISR) &
+ ar231x_read_reg(AR2315_IMR);
+
+ if (misc_intr & AR2315_ISR_SPI)
+ generic_handle_irq(AR2315_MISC_IRQ_SPI);
+ else if (misc_intr & AR2315_ISR_TIMER)
+ generic_handle_irq(AR2315_MISC_IRQ_TIMER);
+ else if (misc_intr & AR2315_ISR_AHB)
+ generic_handle_irq(AR2315_MISC_IRQ_AHB);
+ else if (misc_intr & AR2315_ISR_GPIO) {
+ ar231x_write_reg(AR2315_ISR, AR2315_ISR_GPIO);
+ generic_handle_irq(AR2315_MISC_IRQ_GPIO);
+ } else if (misc_intr & AR2315_ISR_UART0)
+ generic_handle_irq(AR2315_MISC_IRQ_UART0);
+ else if (misc_intr & AR2315_ISR_WD) {
+ ar231x_write_reg(AR2315_ISR, AR2315_ISR_WD);
+ generic_handle_irq(AR2315_MISC_IRQ_WATCHDOG);
+ } else
+ spurious_interrupt();
+}
+
+/*
+ * 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 asmlinkage 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);
+ else if (pending & CAUSEF_IP2)
+ do_IRQ(AR2315_IRQ_MISC_INTRS);
+ else if (pending & CAUSEF_IP7)
+ do_IRQ(AR231X_IRQ_CPU_CLOCK);
+ else
+ spurious_interrupt();
+}
+
+static void
+ar2315_misc_irq_unmask(struct irq_data *d)
+{
+ unsigned int imr;
+
+ imr = ar231x_read_reg(AR2315_IMR);
+ imr |= 1 << (d->irq - AR231X_MISC_IRQ_BASE);
+ ar231x_write_reg(AR2315_IMR, imr);
+}
+
+static void
+ar2315_misc_irq_mask(struct irq_data *d)
+{
+ unsigned int imr;
+
+ imr = ar231x_read_reg(AR2315_IMR);
+ imr &= ~(1 << (d->irq - AR231X_MISC_IRQ_BASE));
+ ar231x_write_reg(AR2315_IMR, imr);
+}
+
+static struct irq_chip ar2315_misc_irq_chip = {
+ .name = "AR2315-MISC",
+ .irq_unmask = ar2315_misc_irq_unmask,
+ .irq_mask = ar2315_misc_irq_mask,
+};
+
+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);
+
+ pr_emerg("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,
+ .name = "ar2315_ahb_proc_interrupt",
+};
+
+void
+ar2315_irq_init(void)
+{
+ int i;
+
+ if (!is_2315())
+ return;
+
+ ar231x_irq_dispatch = ar2315_irq_dispatch;
+ for (i = 0; i < AR2315_MISC_IRQ_COUNT; i++) {
+ int irq = AR231X_MISC_IRQ_BASE + i;
+
+ irq_set_chip_and_handler(irq, &ar2315_misc_irq_chip,
+ handle_level_irq);
+ }
+ setup_irq(AR2315_MISC_IRQ_AHB, &ar2315_ahb_proc_interrupt);
+ irq_set_chained_handler(AR2315_IRQ_MISC_INTRS, ar2315_misc_irq_handler);
+}
+
+static void ar2315_device_reset_set(u32 mask)
+{
+ u32 val;
+
+ val = ar231x_read_reg(AR2315_RESET);
+ ar231x_write_reg(AR2315_RESET, val | mask);
+}
+
+static void ar2315_device_reset_clear(u32 mask)
+{
+ u32 val;
+
+ val = ar231x_read_reg(AR2315_RESET);
+ ar231x_write_reg(AR2315_RESET, val & ~mask);
+}
+
+static struct ar231x_eth ar2315_eth_data = {
+ .reset_set = ar2315_device_reset_set,
+ .reset_clear = ar2315_device_reset_clear,
+ .reset_mac = AR2315_RESET_ENET0,
+ .reset_phy = AR2315_RESET_EPHY0,
+ .config = &ar231x_board,
+};
+
+static struct resource ar2315_spiflash_res[] = {
+ {
+ .name = "spiflash_read",
+ .flags = IORESOURCE_MEM,
+ .start = AR2315_SPI_READ,
+ .end = AR2315_SPI_READ + 0x1000000 - 1,
+ },
+ {
+ .name = "spiflash_mmr",
+ .flags = IORESOURCE_MEM,
+ .start = AR2315_SPI_MMR,
+ .end = AR2315_SPI_MMR + 12 - 1,
+ },
+};
+
+static struct platform_device ar2315_spiflash = {
+ .id = 0,
+ .name = "ar2315-spiflash",
+ .resource = ar2315_spiflash_res,
+ .num_resources = ARRAY_SIZE(ar2315_spiflash_res)
+};
+
+static struct resource ar2315_wdt_res[] = {
+ {
+ .flags = IORESOURCE_MEM,
+ .start = AR2315_WD,
+ .end = AR2315_WD + 8 - 1,
+ },
+ {
+ .flags = IORESOURCE_IRQ,
+ .start = AR2315_MISC_IRQ_WATCHDOG,
+ .end = AR2315_MISC_IRQ_WATCHDOG,
+ }
+};
+
+static struct platform_device ar2315_wdt = {
+ .id = 0,
+ .name = "ar2315-wdt",
+ .resource = ar2315_wdt_res,
+ .num_resources = ARRAY_SIZE(ar2315_wdt_res)
+};
+
+/*
+ * NB: We use mapping size that 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 u8 __init *ar2315_flash_limit(void)
+{
+ return (u8 *)KSEG1ADDR(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_leds(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->reset_config_gpio))
+ continue;
+
+ if (i == ar231x_board.config->sys_led_gpio)
+ 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_leds(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_leds();
+ platform_device_register(&ar2315_wdt);
+ platform_device_register(&ar2315_spiflash);
+ ar231x_add_ethernet(0, AR2315_ENET0, "eth0_mii", AR2315_ENET0_MII,
+ 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_request_one(AR2315_RESET_GPIO, GPIOF_OUT_INIT_LOW, "Reset");
+ 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 clockctl1_predivide_table[4] __initdata = { 1, 2, 4, 5 };
+static int pllc_divide_table[5] __initdata = { 2, 3, 4, 6, 3 };
+
+static unsigned int __init
+ar2315_sys_clk(unsigned int clock_ctl)
+{
+ unsigned int pllc_ctrl, cpu_div;
+ unsigned int pllc_out, refdiv, fdiv, divby2;
+ unsigned int clk_div;
+
+ pllc_ctrl = ar231x_read_reg(AR2315_PLLC_CTL);
+ refdiv = (pllc_ctrl & PLLC_REF_DIV_M) >> PLLC_REF_DIV_S;
+ refdiv = clockctl1_predivide_table[refdiv];
+ fdiv = (pllc_ctrl & PLLC_FDBACK_DIV_M) >> PLLC_FDBACK_DIV_S;
+ divby2 = (pllc_ctrl & PLLC_ADD_FDBACK_DIV_M) >> PLLC_ADD_FDBACK_DIV_S;
+ divby2 += 1;
+ pllc_out = (40000000/refdiv)*(2*divby2)*fdiv;
+
+ /* clkm input selected */
+ switch (clock_ctl & CPUCLK_CLK_SEL_M) {
+ case 0:
+ case 1:
+ clk_div = pllc_divide_table[(pllc_ctrl & PLLC_CLKM_DIV_M) >>
+ PLLC_CLKM_DIV_S];
+ break;
+ case 2:
+ clk_div = pllc_divide_table[(pllc_ctrl & PLLC_CLKC_DIV_M) >>
+ PLLC_CLKC_DIV_S];
+ break;
+ default:
+ pllc_out = 40000000;
+ clk_div = 1;
+ break;
+ }
+
+ cpu_div = (clock_ctl & CPUCLK_CLK_DIV_M) >> CPUCLK_CLK_DIV_S;
+ cpu_div = cpu_div * 2 ?: 1;
+
+ return pllc_out / (clk_div * cpu_div);
+}
+
+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)
+{
+ if (!is_2315())
+ return;
+
+ 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 0x91: /* Need to check */
+ ar231x_devtype = DEV_TYPE_AR2318;
+ break;
+ case 0x90:
+ ar231x_devtype = DEV_TYPE_AR2317;
+ break;
+ case 0x87:
+ ar231x_devtype = DEV_TYPE_AR2316;
+ break;
+ case 0x86:
+ default:
+ ar231x_devtype = DEV_TYPE_AR2315;
+ break;
+ }
+ 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(AR2315_UART0, AR2315_MISC_IRQ_UART0,
+ ar2315_apb_frequency());
+}
--- /dev/null
+++ b/arch/mips/ar231x/ar2315.h
@@ -0,0 +1,37 @@
+#ifndef __AR2315_H
+#define __AR2315_H
+
+#ifdef CONFIG_SOC_AR2315
+
+void ar2315_irq_init(void);
+int ar2315_init_devices(void);
+void ar2315_prom_init(void);
+void ar2315_plat_setup(void);
+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 +1,37 @@
+#ifndef __AR5312_H
+#define __AR5312_H
+
+#ifdef CONFIG_SOC_AR5312
+
+void ar5312_irq_init(void);
+int ar5312_init_devices(void);
+void ar5312_prom_init(void);
+void ar5312_plat_setup(void);
+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 +1,38 @@
+#ifndef __ASM_MACH_AR231X_H
+#define __ASM_MACH_AR231X_H
+
+#include <linux/types.h>
+#include <linux/io.h>
+
+#define AR231X_MISC_IRQ_BASE 0x20
+#define AR231X_GPIO_IRQ_BASE 0x30
+
+/* Software's idea of interrupts handled by "CPU Interrupt Controller" */
+#define AR231X_IRQ_CPU_CLOCK (MIPS_CPU_IRQ_BASE+7) /* C0_CAUSE: 0x8000 */
+
+static inline u32
+ar231x_read_reg(u32 reg)
+{
+ return __raw_readl((void __iomem *)KSEG1ADDR(reg));
+}
+
+static inline void
+ar231x_write_reg(u32 reg, u32 val)
+{
+ __raw_writel(val, (void __iomem *)KSEG1ADDR(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 /* __ASM_MACH_AR231X_H */
--- /dev/null
+++ b/arch/mips/ar231x/devices.h
@@ -0,0 +1,39 @@
+#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_AR2318,
+
+ DEV_TYPE_UNKNOWN
+};
+
+extern int ar231x_devtype;
+extern struct ar231x_board_config ar231x_board;
+extern asmlinkage void (*ar231x_irq_dispatch)(void);
+
+int ar231x_find_config(u8 *flash_limit);
+void ar231x_serial_setup(u32 mapbase, int irq, unsigned int uartclk);
+int ar231x_add_wmac(int nr, u32 base, int irq);
+int ar231x_add_ethernet(int nr, u32 base, const char *mii_name, u32 mii_base,
+ int irq, void *pdata);
+
+static inline bool is_2315(void)
+{
+ return (current_cpu_data.cputype == CPU_4KEC);
+}
+
+static inline bool is_5312(void)
+{
+ return !is_2315();
+}
+
+#endif
--- /dev/null
+++ b/arch/mips/ar231x/devices.c
@@ -0,0 +1,181 @@
+#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 <asm/bootinfo.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;
+
+static struct resource ar231x_eth0_res[] = {
+ {
+ .name = "eth0_membase",
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "eth0_mii",
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "eth0_irq",
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct resource ar231x_eth1_res[] = {
+ {
+ .name = "eth1_membase",
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "eth1_mii",
+ .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 * const 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_AR2318] = "Atheros AR2318",
+ [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, const char *mii_name, u32 mii_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->name = mii_name;
+ res->start = mii_base;
+ res->end = mii_base + 8 - 1;
+ res++;
+ res->start = irq;
+ res->end = irq;
+ return platform_device_register(&ar231x_eth[nr]);
+}
+
+void __init
+ar231x_serial_setup(u32 mapbase, int irq, unsigned int uartclk)
+{
+ struct uart_port s;
+
+ memset(&s, 0, sizeof(s));
+
+ s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP;
+ s.iotype = UPIO_MEM32;
+ s.irq = irq;
+ s.regshift = 2;
+ s.mapbase = mapbase;
+ s.uartclk = uartclk;
+
+ early_serial_setup(&s);
+}
+
+int __init
+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)
+{
+ ar5312_init_devices();
+ ar2315_init_devices();
+
+ return 0;
+}
+
+device_initcall(ar231x_register_devices);
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