diff options
| author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-02-21 17:45:54 +0000 |
|---|---|---|
| committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-02-21 17:45:54 +0000 |
| commit | 14d8e68c1c33b29b1ee996b183684b4e3b471d2b (patch) | |
| tree | e5c4694fa2611c8c0cb5ab6ed00c05b19d9833b9 /target/linux/atheros/patches-3.8/100-board.patch | |
| parent | 2799c19eaa3d1acd4771e4f98165162b794cc9e8 (diff) | |
atheros: add support for linux kernel v3.8
This builds and boots.
Because of the function pointer indirection (e.g. mtd_info's read
function pointer is assigned to spiflash_read), it is difficult for me
to understand where the calls are coming from (could be anywhere,
conditionally pointing at spiflash versions), so I punted and used the
renamed function pointers (_erase, _read, _write). If someone knows
better what to do, please fix.
Cleaned up other sundry kernel tracking issues like get_phy_id and
__devinit,etc.
[juhosg: don't switch to that yet]
Signed-off-by: Russell Senior <russell@personaltelco.net>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35727 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/atheros/patches-3.8/100-board.patch')
| -rw-r--r-- | target/linux/atheros/patches-3.8/100-board.patch | 3160 |
1 files changed, 3160 insertions, 0 deletions
diff --git a/target/linux/atheros/patches-3.8/100-board.patch b/target/linux/atheros/patches-3.8/100-board.patch new file mode 100644 index 0000000000..bd00d93064 --- /dev/null +++ b/target/linux/atheros/patches-3.8/100-board.patch @@ -0,0 +1,3160 @@ +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -120,6 +120,19 @@ 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 +@@ -813,6 +826,7 @@ 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 AR5312/AR2312 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 +1,16 @@ ++config ATHEROS_AR5312 ++ bool "Atheros 5312/2312+ support" ++ depends on ATHEROS_AR231X ++ default y ++ ++config ATHEROS_AR2315 ++ bool "Atheros 2315+ support" ++ depends on ATHEROS_AR231X ++ 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 ++ 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-$(CONFIG_ATHEROS_AR5312) += ar5312.o ++obj-$(CONFIG_ATHEROS_AR2315) += ar2315.o +--- /dev/null ++++ b/arch/mips/ar231x/board.c +@@ -0,0 +1,259 @@ ++/* ++ * 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 <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; ++ 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) { ++ 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"); ++ config->resetConfigGpio = 0xffff; ++ config->sysLedGpio = 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; ++ 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); ++ ++ mac_addr = &radio_data[0x1d * 2]; ++ if (is_broadcast_ether_addr(mac_addr)) { ++ printk(KERN_INFO "Radio MAC is blank; using board-data\n"); ++ memcpy(mac_addr, ar231x_board.config->wlan0_mac, ETH_ALEN); ++ } ++ ++ 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 ar531x ++ */ ++ ++#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 +1,83 @@ ++#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 +1,76 @@ ++/* ++ * 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_GENERIC_DMA_COHERENCE_H ++#define __ASM_MACH_GENERIC_DMA_COHERENCE_H ++ ++#define PCI_DMA_OFFSET 0x20000000 ++ ++#include <linux/device.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 PCI_DMA_OFFSET; ++ else ++#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) ++{ ++ return; ++} ++ ++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_GENERIC_DMA_COHERENCE_H */ +--- /dev/null ++++ b/arch/mips/include/asm/mach-ar231x/gpio.h +@@ -0,0 +1,28 @@ ++#ifndef _ATHEROS_GPIO_H_ ++#define _ATHEROS_GPIO_H_ ++ ++#include <ar231x.h> ++ ++#define gpio_get_value __gpio_get_value ++#define gpio_set_value __gpio_set_value ++#define gpio_cansleep __gpio_cansleep ++ ++/* ++ * Wrappers for the generic GPIO layer ++ */ ++ ++/* not sure if these are used? */ ++ ++/* 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 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 0x11100003 /* UART MMR */ ++#define AR2315_SPI 0x11300000 /* 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 +1,232 @@ ++/* ++ * 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) */ ++ ++/* ++ * 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 +1,579 @@ ++/* ++ * 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 <asm/io.h> ++ ++#include <ar231x_platform.h> ++#include <ar5312_regs.h> ++#include <ar231x.h> ++#include "devices.h" ++#include "ar5312.h" ++ ++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); ++} ++ ++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) ++ 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(struct irq_data *d) ++{ ++ unsigned int imr; ++ ++ imr = ar231x_read_reg(AR531X_IMR); ++ imr |= (1 << (d->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(struct irq_data *d) ++{ ++ unsigned int imr; ++ ++ imr = ar231x_read_reg(AR531X_IMR); ++ imr &= ~(1 << (d->irq - AR531X_MISC_IRQ_BASE - 1)); ++ ar231x_write_reg(AR531X_IMR, imr); ++ ar231x_read_reg(AR531X_IMR); /* flush write buffer */ ++} ++ ++static struct irq_chip ar5312_misc_intr_controller = { ++ .irq_mask = ar5312_misc_intr_disable, ++ .irq_unmask = ar5312_misc_intr_enable, ++}; ++ ++ ++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, ++ .name = "ar5312_ahb_proc_interrupt", ++}; ++ ++ ++static struct irqaction cascade = { ++ .handler = no_action, ++ .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_set_chip_and_handler(irq, &ar5312_misc_intr_controller, ++ handle_level_irq); ++ } ++ setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar5312_ahb_proc_interrupt); ++ setup_irq(AR5312_IRQ_MISC_INTRS, &cascade); ++} ++ ++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(u32 valid_mask) ++{ ++ u32 reg; ++ reg = ar231x_read_reg(AR531X_GPIO_DI); ++ reg &= 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; ++} ++ ++/* ++ * gpiolib implementations. Original mask based methods preserved ++ */ ++static int ++ar5312_gpio_get_value(struct gpio_chip *chip, unsigned gpio) ++{ ++ struct ar231x_gpio_chip *gpch = ++ container_of(chip, struct ar231x_gpio_chip, chip); ++ u32 mask = 1 << gpio; ++ u32 rett; ++ if (!(gpch->valid_mask & mask)) ++ return 0; ++ rett = ar5312_gpio_get(gpch->valid_mask); ++ return !!(rett & mask); ++} ++ ++static void ++ar5312_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value) ++{ ++ struct ar231x_gpio_chip *gpch = ++ container_of(chip, struct ar231x_gpio_chip, chip); ++ u32 mask = 1 << gpio; ++ if (!(gpch->valid_mask & mask)) ++ return; ++ ar5312_gpio_set(mask, (!!value) * mask); ++} ++ ++static int ++ar5312_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) ++{ ++ struct ar231x_gpio_chip *gpch = ++ container_of(chip, struct ar231x_gpio_chip, chip); ++ u32 mask = 1 << gpio; ++ if (!(gpch->valid_mask & mask)) ++ return -ENXIO; ++ ar5312_gpio_set_output(mask, 0); ++ return 0; ++} ++static int ++ar5312_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int value) ++{ ++ struct ar231x_gpio_chip *gpch = ++ container_of(chip, struct ar231x_gpio_chip, chip); ++ u32 mask = 1 << gpio; ++ if (!(gpch->valid_mask & mask)) ++ return -ENXIO; ++ ar5312_gpio_set_output(mask, mask); ++ ar5312_gpio_set(mask, (!!value) * mask); ++ return 0; ++} ++ ++static struct ar231x_gpio_chip ar5312_gpio_chip = { ++ .valid_mask = (1 << 22) - 1, ++ .chip = { ++ .label = "ar5312-gpio", ++ .direction_input = ar5312_gpio_direction_input, ++ .direction_output = ar5312_gpio_direction_output, ++ .set = ar5312_gpio_set_value, ++ .get = ar5312_gpio_get_value, ++ .base = 0, ++ .ngpio = AR531X_GPIO_IRQ_COUNT, // 22 ++ } ++}; ++ ++// end of gpiolib ++ ++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, ++}; ++#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; ++ 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(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 (!(config->flags & BD_WLAN0)) ++ break; ++ ++ 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 (config->flags & BD_WLAN1) ++ 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_read_reg(AR531X_REV); ++ 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; ++} ++ ++int __init ++ar5312_gpio_init(void) ++{ ++ int ret; ++ struct ar231x_gpio_chip *gpch; ++ gpch = &ar5312_gpio_chip; ++ ret = gpiochip_add(&gpch->chip); ++ if (ret) { ++ printk(KERN_ERR "%s: failed to add gpiochip\n", ++ gpch->chip.label); ++ return ret; ++ } ++ printk(KERN_INFO "%s: registered %d GPIOs\n", ++ gpch->chip.label, gpch->chip.ngpio); ++ return ret; ++} ++ ++void __init ++ar5312_prom_init(void) ++{ ++ u32 memsize, memcfg, bank0AC, bank1AC; ++ u32 devid; ++ ++ if (!is_5312()) ++ return; ++ ++ /* 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); ++ ++ devid = ar231x_read_reg(AR531X_REV); ++ devid >>= AR531X_REV_WMAC_MIN_S; ++ devid &= AR531X_REV_CHIP; ++ ar231x_board.devid = (u16) devid; ++ ar5312_gpio_init(); ++} ++ ++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/ar2315.c +@@ -0,0 +1,694 @@ ++/* ++ * 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 <asm/io.h> ++ ++#include <ar231x_platform.h> ++#include <ar2315_regs.h> ++#include <ar231x.h> ++#include "devices.h" ++#include "ar2315.h" ++ ++static u32 gpiointmask = 0, gpiointval = 0; ++ ++static inline void ar2315_gpio_irq(void) ++{ ++ u32 pend; ++ int bit = -1; ++ ++ /* only do one gpio interrupt at a time */ ++ pend = (ar231x_read_reg(AR2315_GPIO_DI) ^ gpiointval) & gpiointmask; ++ ++ if (pend) { ++ bit = fls(pend) - 1; ++ pend &= ~(1 << bit); ++ gpiointval ^= (1 << bit); ++ } ++ ++ if (!pend) ++ ar231x_write_reg(AR2315_ISR, AR2315_ISR_GPIO); ++ ++ /* Enable interrupt with edge detection */ ++ if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(bit)) != AR2315_GPIO_CR_I(bit)) ++ return; ++ ++ if (bit >= 0) ++ do_IRQ(AR531X_GPIO_IRQ_BASE + bit); ++} ++ ++ ++/* ++ * 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) { ++ 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(struct irq_data *d) ++{ ++ unsigned int gpio = d->irq - AR531X_GPIO_IRQ_BASE; ++ ++ /* Enable interrupt with edge detection */ ++ if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(gpio)) != AR2315_GPIO_CR_I(gpio)) ++ return; ++ ++ gpiointmask |= (1 << gpio); ++ ar2315_set_gpiointmask(gpio, 3); ++} ++ ++static void ar2315_gpio_intr_disable(struct irq_data *d) ++{ ++ unsigned int gpio = d->irq - AR531X_GPIO_IRQ_BASE; ++ ++ /* Disable interrupt */ ++ gpiointmask &= ~(1 << gpio); ++ ar2315_set_gpiointmask(gpio, 0); ++} ++ ++static struct irq_chip ar2315_gpio_intr_controller = { ++ .irq_mask = ar2315_gpio_intr_disable, ++ .irq_unmask = ar2315_gpio_intr_enable, ++}; ++ ++static void ++ar2315_misc_intr_enable(struct irq_data *d) ++{ ++ unsigned int imr; ++ ++ imr = ar231x_read_reg(AR2315_IMR); ++ switch(d->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(struct irq_data *d) ++{ ++ unsigned int imr; ++ ++ imr = ar231x_read_reg(AR2315_IMR); ++ switch(d->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 struct irq_chip ar2315_misc_intr_controller = { ++ .irq_mask = ar2315_misc_intr_disable, ++ .irq_unmask = ar2315_misc_intr_enable, ++}; ++ ++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, ++ .name = "ar2315_ahb_proc_interrupt", ++}; ++ ++static struct irqaction cascade = { ++ .handler = no_action, ++ .name = "cascade", ++}; ++ ++void ++ar2315_irq_init(void) ++{ ++ int i; ++ ++ if (!is_2315()) ++ return; ++ ++ 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_set_chip_and_handler(irq, &ar2315_misc_intr_controller, ++ handle_level_irq); ++ } ++ for (i = 0; i < AR531X_GPIO_IRQ_COUNT; i++) { ++ int irq = AR531X_GPIO_IRQ_BASE + i; ++ irq_set_chip_and_handler(irq, &ar2315_gpio_intr_controller, ++ handle_level_irq); ++ } ++ 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); ++} ++ ++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(u32 valid_mask) ++{ ++ u32 reg; ++ reg = ar231x_read_reg(AR2315_GPIO_DI); ++ reg &= 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; ++} ++ ++/* ++ * gpiolib implementation. Original legacy mask based methods ++ * preserved for now. ++ */ ++static int ++ar2315_gpio_get_value(struct gpio_chip *chip, unsigned gpio) ++{ ++ struct ar231x_gpio_chip *gpch = ++ container_of(chip, struct ar231x_gpio_chip, chip); ++ u32 mask = 1 << gpio; ++ u32 rett; ++ if (!(gpch->valid_mask & mask)) ++ return 0; ++ rett = ar2315_gpio_get(gpch->valid_mask); // legacy code ++ return !!(rett & mask); ++} ++ ++static void ++ar2315_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value) ++{ ++ struct ar231x_gpio_chip *gpch = ++ container_of(chip, struct ar231x_gpio_chip, chip); ++ u32 mask = 1 << gpio; ++ if (!(gpch->valid_mask & mask)) ++ return; ++ ar2315_gpio_set(mask, (!!value) * mask); // legacy ++} ++ ++static int ++ar2315_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) ++{ ++ struct ar231x_gpio_chip *gpch = ++ container_of(chip, struct ar231x_gpio_chip, chip); ++ u32 mask = 1 << gpio; ++ if (!(gpch->valid_mask & mask)) ++ return -ENXIO; ++ ar2315_gpio_set_output(mask, 0); // legacy ++ return 0; ++} ++ ++static int ++ar2315_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int value) ++{ ++ struct ar231x_gpio_chip *gpch = ++ container_of(chip, struct ar231x_gpio_chip, chip); ++ u32 mask = 1 << gpio; ++ if (!(gpch->valid_mask & mask)) ++ return -ENXIO; ++ ar2315_gpio_set_output(mask, mask); // both legacy ++ ar2315_gpio_set(mask, (!!value) * mask); ++ return 0; ++} ++ ++static struct ar231x_gpio_chip ar2315_gpio_chip = { ++ .valid_mask = (1 << 22) - 1, ++ .chip = { ++ .label = "ar2315-gpio", ++ .direction_input = ar2315_gpio_direction_input, ++ .direction_output = ar2315_gpio_direction_output, ++ .set = ar2315_gpio_set_value, ++ .get = ar2315_gpio_get_value, ++ .base = 0, ++ .ngpio = AR531X_GPIO_IRQ_COUNT, // 22 ++ } ++}; ++ ++// end of gpiolib ++ ++ ++static struct ar231x_eth ar2315_eth_data = { ++ .reset_base = AR2315_RESET, ++ .reset_mac = AR2315_RESET_ENET0, ++ .reset_phy = AR2315_RESET_EPHY0, ++ .phy_base = KSEG1ADDR(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(AR2315_SPI + reg); ++} ++ ++static inline void ++spiflash_write_reg(int reg, u32 data) ++{ ++ ar231x_write_reg(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_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->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_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, KSEG1ADDR(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) ++{ ++ if (!is_2315()) ++ return; ++ ++ mips_hpt_frequency = ar2315_cpu_frequency() / 2; ++} ++ ++int __init ++ar2315_gpio_init(void) ++{ ++ int ret; ++ struct ar231x_gpio_chip *gpch; ++ gpch = &ar2315_gpio_chip; ++ ret = gpiochip_add(&gpch->chip); ++ if (ret) { ++ printk(KERN_ERR "%s: failed to add gpiochip\n", ++ gpch->chip.label); ++ return ret; ++ } ++ printk(KERN_INFO "%s: registered %d GPIOs\n", ++ gpch->chip.label, gpch->chip.ngpio); ++ return ret; ++} ++ ++ ++ ++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; ++ } ++ ar2315_gpio_init(); ++ ar231x_board.devid = devid; ++} ++ ++void __init ++ar2315_plat_setup(void) ++{ ++ u32 config; ++ ++ if (!is_2315()) ++ return; ++ ++ gpio_request(AR2315_RESET_GPIO, "reset"); ++ ++ /* 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 +1,57 @@ ++#ifndef __AR531X_H ++#define __AR531X_H ++ ++#include <linux/types.h> ++#include <linux/io.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 *) KSEG1ADDR(reg)); ++} ++ ++static inline void ++ar231x_write_reg(u32 reg, u32 val) ++{ ++ __raw_writel(val, (u32 *) 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 +--- /dev/null ++++ b/arch/mips/ar231x/devices.h +@@ -0,0 +1,42 @@ ++#ifndef __AR231X_DEVICES_H ++#define __AR231X_DEVICES_H ++#include <linux/gpio.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 asmlinkage 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); ++ ++static inline bool is_2315(void) ++{ ++ return (current_cpu_data.cputype == CPU_4KEC); ++} ++ ++static inline bool is_5312(void) ++{ ++ return !is_2315(); ++} ++ ++struct ar231x_gpio_chip { ++ u32 valid_mask; ++ struct gpio_chip chip; ++}; ++#endif +--- /dev/null ++++ b/arch/mips/ar231x/devices.c +@@ -0,0 +1,168 @@ ++#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; ++ ++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) ++{ ++ ar5312_init_devices(); ++ ar2315_init_devices(); ++ ++ return 0; ++} ++ ++device_initcall(ar231x_register_devices); |