diff options
Diffstat (limited to 'target/linux/patches/3.0.25/fon2100.patch')
| -rw-r--r-- | target/linux/patches/3.0.25/fon2100.patch | 6279 |
1 files changed, 6279 insertions, 0 deletions
diff --git a/target/linux/patches/3.0.25/fon2100.patch b/target/linux/patches/3.0.25/fon2100.patch new file mode 100644 index 000000000..038ff7020 --- /dev/null +++ b/target/linux/patches/3.0.25/fon2100.patch @@ -0,0 +1,6279 @@ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/Kbuild.platforms linux-2.6.39-rc7/arch/mips/Kbuild.platforms +--- linux-2.6.39-rc7.orig/arch/mips/Kbuild.platforms 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/arch/mips/Kbuild.platforms 2011-05-15 21:34:57.000000000 +0200 +@@ -6,6 +6,7 @@ + platforms += bcm47xx + platforms += bcm63xx + platforms += cavium-octeon ++platforms += ar231x + platforms += cobalt + platforms += dec + platforms += emma +diff -Nur linux-2.6.39-rc7.orig/arch/mips/Kconfig linux-2.6.39-rc7/arch/mips/Kconfig +--- linux-2.6.39-rc7.orig/arch/mips/Kconfig 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/arch/mips/Kconfig 2011-05-16 12:11:11.000000000 +0200 +@@ -121,6 +121,21 @@ + 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 GENERIC_GPIO ++ select SYS_HAS_EARLY_PRINTK ++ select SYS_SUPPORTS_ZBOOT ++ help ++ Support for AR231x and AR531x based boards ++ + config MIPS_COBALT + bool "Cobalt Server" + select CEVT_R4K +@@ -738,6 +753,7 @@ + + endchoice + ++source "arch/mips/ar231x/Kconfig" + source "arch/mips/alchemy/Kconfig" + source "arch/mips/ath79/Kconfig" + source "arch/mips/bcm63xx/Kconfig" +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/Kconfig linux-2.6.39-rc7/arch/mips/ar231x/Kconfig +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/Kconfig 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/Kconfig 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,27 @@ ++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 ++ select GENERIC_GPIO ++ default y ++ ++config ATHEROS_AR2315_PCI ++ bool "PCI support" ++ depends on ATHEROS_AR2315 ++ select HW_HAS_PCI ++ select PCI ++ select USB_ARCH_HAS_HCD ++ select USB_ARCH_HAS_OHCI ++ select USB_ARCH_HAS_EHCI ++ default n +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/Makefile linux-2.6.39-rc7/arch/mips/ar231x/Makefile +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/Makefile 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/Makefile 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,17 @@ ++# ++# 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-$(CONFIG_EARLY_PRINTK) += early_printk.o ++ ++obj-$(CONFIG_ATHEROS_AR5312) += ar5312.o ++obj-$(CONFIG_ATHEROS_AR2315) += ar2315.o ++obj-$(CONFIG_ATHEROS_AR2315_PCI) += pci.o +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/Platform linux-2.6.39-rc7/arch/mips/ar231x/Platform +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/Platform 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/Platform 2011-05-15 21:34:57.000000000 +0200 +@@ -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 +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/ar2315.c linux-2.6.39-rc7/arch/mips/ar231x/ar2315.c +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/ar2315.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/ar2315.c 2011-05-15 21:47:07.000000000 +0200 +@@ -0,0 +1,654 @@ ++/* ++ * This file is subject to the terms and conditions of the GNU General Public ++ * License. See the file "COPYING" in the main directory of this archive ++ * for more details. ++ * ++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved. ++ * Copyright (C) 2006 FON Technology, SL. ++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org> ++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> ++ */ ++ ++/* ++ * Platform devices for Atheros SoCs ++ */ ++ ++#include <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 <asm/bootinfo.h> ++#include <asm/reboot.h> ++#include <asm/time.h> ++#include <asm/irq.h> ++#include <asm/io.h> ++#include <asm/gpio.h> ++ ++#include <ar231x_platform.h> ++#include <ar2315_regs.h> ++#include <ar231x.h> ++#include "devices.h" ++#include "ar2315.h" ++ ++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); ++} ++ ++#ifdef CONFIG_ATHEROS_AR2315_PCI ++static inline void pci_abort_irq(void) ++{ ++ ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_ABORT_INT); ++} ++ ++static inline void pci_ack_irq(void) ++{ ++ ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_EXT_INT); ++} ++ ++void ar2315_pci_irq(int irq) ++{ ++ if (ar231x_read_reg(AR2315_PCI_INT_STATUS) == AR2315_PCI_ABORT_INT) ++ pci_abort_irq(); ++ else { ++ do_IRQ(irq); ++ pci_ack_irq(); ++ } ++} ++#endif /* CONFIG_ATHEROS_AR2315_PCI */ ++ ++/* ++ * Called when an interrupt is received, this function ++ * determines exactly which interrupt it was, and it ++ * invokes the appropriate handler. ++ * ++ * Implicitly, we also define interrupt priority by ++ * choosing which to dispatch first. ++ */ ++static 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); ++#ifdef CONFIG_ATHEROS_AR2315_PCI ++ else if (pending & CAUSEF_IP5) ++ ar2315_pci_irq(AR2315_IRQ_LCBUS_PCI); ++#endif ++ else if (pending & CAUSEF_IP2) { ++ unsigned int misc_intr = ar231x_read_reg(AR2315_ISR) & ar231x_read_reg(AR2315_IMR); ++ ++ if (misc_intr & AR2315_ISR_SPI) ++ do_IRQ(AR531X_MISC_IRQ_SPI); ++ else if (misc_intr & AR2315_ISR_TIMER) ++ do_IRQ(AR531X_MISC_IRQ_TIMER); ++ else if (misc_intr & AR2315_ISR_AHB) ++ do_IRQ(AR531X_MISC_IRQ_AHB_PROC); ++ else if (misc_intr & AR2315_ISR_GPIO) ++ ar2315_gpio_irq(); ++ else if (misc_intr & AR2315_ISR_UART0) ++ do_IRQ(AR531X_MISC_IRQ_UART0); ++ else if (misc_intr & AR2315_ISR_WD) ++ do_IRQ(AR531X_MISC_IRQ_WATCHDOG); ++ else ++ do_IRQ(AR531X_MISC_IRQ_NONE); ++ } else if (pending & CAUSEF_IP7) ++ do_IRQ(AR531X_IRQ_CPU_CLOCK); ++} ++ ++static void ar2315_set_gpiointmask(int gpio, int level) ++{ ++ u32 reg; ++ ++ reg = ar231x_read_reg(AR2315_GPIO_INT); ++ reg &= ~(AR2315_GPIO_INT_M | AR2315_GPIO_INT_LVL_M); ++ reg |= gpio | AR2315_GPIO_INT_LVL(level); ++ ar231x_write_reg(AR2315_GPIO_INT, reg); ++} ++ ++static void ar2315_gpio_intr_enable(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 = { ++ .name = "AR2315-GPIO", ++ .irq_ack = ar2315_gpio_intr_disable, ++ .irq_mask_ack = ar2315_gpio_intr_disable, ++ .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 = { ++ .name = "AR2315-MISC", ++ .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, ++ .flags = IRQF_DISABLED, ++ .name = "ar2315_ahb_proc_interrupt", ++}; ++ ++static struct irqaction cascade = { ++ .handler = no_action, ++ .flags = IRQF_DISABLED, ++ .name = "cascade", ++}; ++ ++void ++ar2315_irq_init(void) ++{ ++ int i; ++ ++ 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); ++} ++ ++const struct ar231x_gpiodev ar2315_gpiodev; ++ ++static u32 ++ar2315_gpio_get_output(void) ++{ ++ u32 reg; ++ reg = ar231x_read_reg(AR2315_GPIO_CR); ++ reg &= ar2315_gpiodev.valid_mask; ++ return reg; ++} ++ ++static u32 ++ar2315_gpio_set_output(u32 mask, u32 val) ++{ ++ u32 reg; ++ ++ reg = ar231x_read_reg(AR2315_GPIO_CR); ++ reg &= ~mask; ++ reg |= val; ++ ar231x_write_reg(AR2315_GPIO_CR, reg); ++ return reg; ++} ++ ++static u32 ++ar2315_gpio_get(void) ++{ ++ u32 reg; ++ reg = ar231x_read_reg(AR2315_GPIO_DI); ++ reg &= ar2315_gpiodev.valid_mask; ++ return reg; ++} ++ ++static u32 ++ar2315_gpio_set(u32 mask, u32 value) ++{ ++ u32 reg; ++ reg = ar231x_read_reg(AR2315_GPIO_DO); ++ reg &= ~mask; ++ reg |= value; ++ ar231x_write_reg(AR2315_GPIO_DO, reg); ++ return reg; ++} ++ ++const struct ar231x_gpiodev ar2315_gpiodev = { ++ .valid_mask = (1 << 22) - 1, ++ .get_output = ar2315_gpio_get_output, ++ .set_output = ar2315_gpio_set_output, ++ .get = ar2315_gpio_get, ++ .set = ar2315_gpio_set, ++}; ++ ++static struct ar231x_eth ar2315_eth_data = { ++ .reset_base = AR2315_RESET, ++ .reset_mac = AR2315_RESET_ENET0, ++ .reset_phy = AR2315_RESET_EPHY0, ++ .phy_base = 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(void) ++{ ++ static char led_names[6][6]; ++ int i, led = 0; ++ ++ ar2315_led_data.num_leds = 0; ++ for(i = 1; i < 8; i++) ++ { ++ if((i == AR2315_RESET_GPIO) || ++ (i == ar231x_board.config->resetConfigGpio)) ++ continue; ++ ++ if(i == ar231x_board.config->sysLedGpio) ++ strcpy(led_names[led], "wlan"); ++ else ++ sprintf(led_names[led], "gpio%d", i); ++ ++ ar2315_leds[led].name = led_names[led]; ++ ar2315_leds[led].gpio = i; ++ ar2315_leds[led].active_low = 0; ++ led++; ++ } ++ ar2315_led_data.num_leds = led; ++ platform_device_register(&ar2315_gpio_leds); ++} ++#else ++static inline void ar2315_init_gpio(void) ++{ ++} ++#endif ++ ++int __init ++ar2315_init_devices(void) ++{ ++ if (!is_2315()) ++ return 0; ++ ++ /* Find board configuration */ ++ ar231x_find_config(ar2315_flash_limit()); ++ ar2315_eth_data.macaddr = ar231x_board.config->enet0_mac; ++ ++ ar2315_init_gpio(); ++ platform_device_register(&ar2315_wdt); ++ platform_device_register(&ar2315_spiflash); ++ ar231x_add_ethernet(0, 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; ++} ++ ++void __init ++ar2315_prom_init(void) ++{ ++ u32 memsize, memcfg, devid; ++ ++ if (!is_2315()) ++ return; ++ ++ memcfg = ar231x_read_reg(AR2315_MEM_CFG); ++ memsize = 1 + ((memcfg & SDRAM_DATA_WIDTH_M) >> SDRAM_DATA_WIDTH_S); ++ memsize <<= 1 + ((memcfg & SDRAM_COL_WIDTH_M) >> SDRAM_COL_WIDTH_S); ++ memsize <<= 1 + ((memcfg & SDRAM_ROW_WIDTH_M) >> SDRAM_ROW_WIDTH_S); ++ memsize <<= 3; ++ add_memory_region(0, memsize, BOOT_MEM_RAM); ++ ++ /* Detect the hardware based on the device ID */ ++ devid = ar231x_read_reg(AR2315_SREV) & AR2315_REV_CHIP; ++ switch(devid) { ++ case 0x90: ++ case 0x91: ++ ar231x_devtype = DEV_TYPE_AR2317; ++ break; ++ default: ++ ar231x_devtype = DEV_TYPE_AR2315; ++ break; ++ } ++ ar231x_gpiodev = &ar2315_gpiodev; ++ ar231x_board.devid = devid; ++} ++ ++void __init ++ar2315_plat_setup(void) ++{ ++ u32 config; ++ ++ if (!is_2315()) ++ return; ++ ++ /* Clear any lingering AHB errors */ ++ config = read_c0_config(); ++ write_c0_config(config & ~0x3); ++ ar231x_write_reg(AR2315_AHB_ERR0,AHB_ERROR_DET); ++ ar231x_read_reg(AR2315_AHB_ERR1); ++ ar231x_write_reg(AR2315_WDC, AR2315_WDC_IGNORE_EXPIRATION); ++ ++ _machine_restart = ar2315_restart; ++ ar231x_serial_setup(KSEG1ADDR(AR2315_UART0), ar2315_apb_frequency()); ++} +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/ar2315.h linux-2.6.39-rc7/arch/mips/ar231x/ar2315.h +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/ar2315.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/ar2315.h 2011-05-15 21:34:57.000000000 +0200 +@@ -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 +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/ar5312.c linux-2.6.39-rc7/arch/mips/ar231x/ar5312.c +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/ar5312.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/ar5312.c 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,538 @@ ++/* ++ * This file is subject to the terms and conditions of the GNU General Public ++ * License. See the file "COPYING" in the main directory of this archive ++ * for more details. ++ * ++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved. ++ * Copyright (C) 2006 FON Technology, SL. ++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org> ++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org> ++ */ ++ ++/* ++ * Platform devices for Atheros SoCs ++ */ ++ ++#include <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 <asm/bootinfo.h> ++#include <asm/reboot.h> ++#include <asm/time.h> ++#include <asm/irq.h> ++#include <asm/io.h> ++#include <gpio.h> ++ ++#include <ar231x_platform.h> ++#include <ar5312_regs.h> ++#include <ar231x.h> ++#include "devices.h" ++#include "ar5312.h" ++ ++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 = { ++ .name = "AR5312-MISC", ++ .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, ++ .flags = IRQF_DISABLED, ++ .name = "ar5312_ahb_proc_interrupt", ++}; ++ ++ ++static struct irqaction cascade = { ++ .handler = no_action, ++ .flags = IRQF_DISABLED, ++ .name = "cascade", ++}; ++ ++void __init ar5312_irq_init(void) ++{ ++ int i; ++ ++ if (!is_5312()) ++ return; ++ ++ ar231x_irq_dispatch = ar5312_irq_dispatch; ++ for (i = 0; i < AR531X_MISC_IRQ_COUNT; i++) { ++ int irq = AR531X_MISC_IRQ_BASE + i; ++ irq_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); ++} ++ ++const struct ar231x_gpiodev ar5312_gpiodev; ++ ++static u32 ++ar5312_gpio_get_output(void) ++{ ++ u32 reg; ++ reg = ~(ar231x_read_reg(AR531X_GPIO_CR)); ++ reg &= ar5312_gpiodev.valid_mask; ++ return reg; ++} ++ ++static u32 ++ar5312_gpio_set_output(u32 mask, u32 val) ++{ ++ u32 reg; ++ ++ reg = ar231x_read_reg(AR531X_GPIO_CR); ++ reg |= mask; ++ reg &= ~val; ++ ar231x_write_reg(AR531X_GPIO_CR, reg); ++ return reg; ++} ++ ++static u32 ++ar5312_gpio_get(void) ++{ ++ u32 reg; ++ reg = ar231x_read_reg(AR531X_GPIO_DI); ++ reg &= ar5312_gpiodev.valid_mask; ++ return reg; ++} ++ ++static u32 ++ar5312_gpio_set(u32 mask, u32 value) ++{ ++ u32 reg; ++ reg = ar231x_read_reg(AR531X_GPIO_DO); ++ reg &= ~mask; ++ reg |= value; ++ ar231x_write_reg(AR531X_GPIO_DO, reg); ++ return reg; ++} ++ ++const struct ar231x_gpiodev ar5312_gpiodev = { ++ .valid_mask = (1 << 8) - 1, ++ .get_output = ar5312_gpio_get_output, ++ .set_output = ar5312_gpio_set_output, ++ .get = ar5312_gpio_get, ++ .set = ar5312_gpio_set, ++}; ++ ++static struct physmap_flash_data ar5312_flash_data = { ++ .width = 2, ++}; ++ ++static struct resource ar5312_flash_resource = { ++ .start = AR531X_FLASH, ++ .end = AR531X_FLASH + 0x800000 - 1, ++ .flags = IORESOURCE_MEM, ++}; ++ ++static struct ar231x_eth ar5312_eth0_data = { ++ .reset_base = AR531X_RESET, ++ .reset_mac = AR531X_RESET_ENET0, ++ .reset_phy = AR531X_RESET_EPHY0, ++ .phy_base = KSEG1ADDR(AR531X_ENET0), ++ .config = &ar231x_board, ++}; ++ ++static struct ar231x_eth ar5312_eth1_data = { ++ .reset_base = AR531X_RESET, ++ .reset_mac = AR531X_RESET_ENET1, ++ .reset_phy = AR531X_RESET_EPHY1, ++ .phy_base = KSEG1ADDR(AR531X_ENET1), ++ .config = &ar231x_board, ++}; ++ ++static struct platform_device ar5312_physmap_flash = { ++ .name = "physmap-flash", ++ .id = 0, ++ .dev.platform_data = &ar5312_flash_data, ++ .resource = &ar5312_flash_resource, ++ .num_resources = 1, ++}; ++ ++#ifdef CONFIG_LEDS_GPIO ++static struct gpio_led ar5312_leds[] = { ++ { .name = "wlan", .gpio = 0, .active_low = 1, }, ++}; ++ ++static const struct gpio_led_platform_data ar5312_led_data = { ++ .num_leds = ARRAY_SIZE(ar5312_leds), ++ .leds = (void *) ar5312_leds, ++}; ++ ++static struct platform_device ar5312_gpio_leds = { ++ .name = "leds-gpio", ++ .id = -1, ++ .dev.platform_data = (void *) &ar5312_led_data, ++}; ++#endif ++ ++/* ++ * NB: This mapping size is larger than the actual flash size, ++ * but this shouldn't be a problem here, because the flash ++ * will simply be mapped multiple times. ++ */ ++static char __init *ar5312_flash_limit(void) ++{ ++ u32 ctl; ++ /* ++ * Configure flash bank 0. ++ * Assume 8M window size. Flash will be aliased if it's smaller ++ */ ++ ctl = FLASHCTL_E | ++ FLASHCTL_AC_8M | ++ FLASHCTL_RBLE | ++ (0x01 << FLASHCTL_IDCY_S) | ++ (0x07 << FLASHCTL_WST1_S) | ++ (0x07 << FLASHCTL_WST2_S) | ++ (ar231x_read_reg(AR531X_FLASHCTL0) & FLASHCTL_MW); ++ ++ ar231x_write_reg(AR531X_FLASHCTL0, ctl); ++ ++ /* Disable other flash banks */ ++ ar231x_write_reg(AR531X_FLASHCTL1, ++ ar231x_read_reg(AR531X_FLASHCTL1) & ~(FLASHCTL_E | FLASHCTL_AC)); ++ ++ ar231x_write_reg(AR531X_FLASHCTL2, ++ ar231x_read_reg(AR531X_FLASHCTL2) & ~(FLASHCTL_E | FLASHCTL_AC)); ++ ++ return (char *) KSEG1ADDR(AR531X_FLASH + 0x800000); ++} ++ ++int __init ar5312_init_devices(void) ++{ ++ struct ar231x_boarddata *config; ++ u32 fctl = 0; ++ const u8 *radio; ++ u8 *c; ++ ++ if (!is_5312()) ++ return 0; ++ ++ /* Locate board/radio config data */ ++ ar231x_find_config(ar5312_flash_limit()); ++ config = ar231x_board.config; ++ ++ ++ /* ++ * Chip IDs and hardware detection for some Atheros ++ * models are really broken! ++ * ++ * Atheros uses a disabled WMAC0 and Silicon ID of AR5312 ++ * as indication for AR2312, which is otherwise ++ * indistinguishable from the real AR5312. ++ */ ++ if (ar231x_board.radio) { ++ radio = ar231x_board.radio + AR531X_RADIO_MASK_OFF; ++ if ((*((const u32 *) radio) & AR531X_RADIO0_MASK) == 0) ++ config->flags |= BD_ISCASPER; ++ } else ++ radio = NULL; ++ ++ /* AR2313 has CPU minor rev. 10 */ ++ if ((current_cpu_data.processor_id & 0xff) == 0x0a) ++ ar231x_devtype = DEV_TYPE_AR2313; ++ ++ /* AR2312 shares the same Silicon ID as AR5312 */ ++ else if (config->flags & BD_ISCASPER) ++ ar231x_devtype = DEV_TYPE_AR2312; ++ ++ /* Everything else is probably AR5312 or compatible */ ++ else ++ ar231x_devtype = DEV_TYPE_AR5312; ++ ++ /* fixup flash width */ ++ fctl = ar231x_read_reg(AR531X_FLASHCTL) & FLASHCTL_MW; ++ switch (fctl) { ++ case FLASHCTL_MWx16: ++ ar5312_flash_data.width = 2; ++ break; ++ case FLASHCTL_MWx8: ++ default: ++ ar5312_flash_data.width = 1; ++ break; ++ } ++ ++ platform_device_register(&ar5312_physmap_flash); ++ ++#ifdef CONFIG_LEDS_GPIO ++ ar5312_leds[0].gpio = config->sysLedGpio; ++ platform_device_register(&ar5312_gpio_leds); ++#endif ++ ++ /* Fix up MAC addresses if necessary */ ++ if (!memcmp(config->enet0_mac, "\xff\xff\xff\xff\xff\xff", 6)) ++ memcpy(config->enet0_mac, config->enet1_mac, 6); ++ ++ /* If ENET0 and ENET1 have the same mac address, ++ * increment the one from ENET1 */ ++ if (memcmp(config->enet0_mac, config->enet1_mac, 6) == 0) { ++ c = config->enet1_mac + 5; ++ while ((c >= config->enet1_mac) && !(++(*c))) ++ c--; ++ } ++ ++ switch(ar231x_devtype) { ++ case DEV_TYPE_AR5312: ++ ar5312_eth0_data.macaddr = config->enet0_mac; ++ ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET0), ++ AR5312_IRQ_ENET0_INTRS, &ar5312_eth0_data); ++ ++ ar5312_eth1_data.macaddr = config->enet1_mac; ++ ar231x_add_ethernet(1, KSEG1ADDR(AR531X_ENET1), ++ AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data); ++ ++ if (!ar231x_board.radio) ++ return 0; ++ ++ if ((*((u32 *) radio) & AR531X_RADIO0_MASK) && ++ (config->flags & BD_WLAN0)) ++ ar231x_add_wmac(0, AR531X_WLAN0, ++ AR5312_IRQ_WLAN0_INTRS); ++ ++ break; ++ /* ++ * AR2312/3 ethernet uses the PHY of ENET0, but the MAC ++ * of ENET1. Atheros calls it 'twisted' for a reason :) ++ */ ++ case DEV_TYPE_AR2312: ++ case DEV_TYPE_AR2313: ++ ar5312_eth1_data.phy_base = ar5312_eth0_data.phy_base; ++ ar5312_eth1_data.reset_phy = ar5312_eth0_data.reset_phy; ++ ar5312_eth1_data.macaddr = config->enet0_mac; ++ ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET1), ++ AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data); ++ ++ if (!ar231x_board.radio) ++ return 0; ++ break; ++ default: ++ break; ++ } ++ ++ if ((*((u32 *) radio) & AR531X_RADIO1_MASK) && ++ (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; ++} ++ ++ ++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; ++ ar231x_gpiodev = &ar5312_gpiodev; ++} ++ ++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()); ++} ++ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/ar5312.h linux-2.6.39-rc7/arch/mips/ar231x/ar5312.h +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/ar5312.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/ar5312.h 2011-05-15 21:34:57.000000000 +0200 +@@ -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 +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/board.c linux-2.6.39-rc7/arch/mips/ar231x/board.c +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/board.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/board.c 2011-05-15 22:16:11.000000000 +0200 +@@ -0,0 +1,261 @@ ++/* ++ * 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 <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, i, tmp; ++ u8 *bcfg, *rcfg; ++ u8 *board_data; ++ u8 *radio_data; ++ u32 offset; ++ ++ ar231x_board.config = NULL; ++ ar231x_board.radio = NULL; ++ /* Copy the board and radio data to RAM, because accessing the mapped ++ * memory of the flash directly after booting is not safe */ ++ ++ /* Try to find valid board and radio data */ ++ bcfg = find_board_config(flash_limit, false); ++ ++ /* If that fails, try to at least find valid radio data */ ++ if (!bcfg) { ++ bcfg = find_board_config(flash_limit, true); ++ broken_boarddata = 1; ++ } ++ ++ if (!bcfg) { ++ printk(KERN_WARNING "WARNING: No board configuration data found!\n"); ++ return -ENODEV; ++ } ++ ++ board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL); ++ ar231x_board.config = (struct ar231x_boarddata *) board_data; ++ memcpy(board_data, bcfg, 0x100); ++ if (broken_boarddata) { ++ printk(KERN_WARNING "WARNING: broken board data detected\n"); ++ config = ar231x_board.config; ++ if (!memcmp(config->enet0_mac, "\x00\x00\x00\x00\x00\x00", 6)) { ++ printk(KERN_INFO "Fixing up empty mac addresses\n"); ++ 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); ++ ++ for (tmp = 0xff, i = 0; i < ETH_ALEN; i++) ++ tmp &= radio_data[i + 0x1d * 2]; ++ if (tmp == 0xff) { ++ u16 *eep = (u16 *)radio_data, *bcfgs = (u16 *)bcfg; ++ printk(KERN_INFO "Radio MAC is blank; using board-data\n"); ++ eep[0x1f] = bcfgs[0x30]; ++ eep[0x1e] = bcfgs[0x34]; ++ eep[0x1d] = bcfgs[0x32]; ++ } ++ ++ 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(); ++} ++ ++ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/devices.c linux-2.6.39-rc7/arch/mips/ar231x/devices.c +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/devices.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/devices.c 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,175 @@ ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/serial.h> ++#include <linux/serial_core.h> ++#include <linux/serial_8250.h> ++#include <linux/platform_device.h> ++#include <ar231x_platform.h> ++#include <ar231x.h> ++#include "devices.h" ++#include "ar5312.h" ++#include "ar2315.h" ++ ++struct ar231x_board_config ar231x_board; ++int ar231x_devtype = DEV_TYPE_UNKNOWN; ++const struct ar231x_gpiodev *ar231x_gpiodev; ++EXPORT_SYMBOL(ar231x_gpiodev); ++ ++static struct resource ar231x_eth0_res[] = { ++ { ++ .name = "eth0_membase", ++ .flags = IORESOURCE_MEM, ++ }, ++ { ++ .name = "eth0_irq", ++ .flags = IORESOURCE_IRQ, ++ } ++}; ++ ++static struct resource ar231x_eth1_res[] = { ++ { ++ .name = "eth1_membase", ++ .flags = IORESOURCE_MEM, ++ }, ++ { ++ .name = "eth1_irq", ++ .flags = IORESOURCE_IRQ, ++ } ++}; ++ ++static struct platform_device ar231x_eth[] = { ++ { ++ .id = 0, ++ .name = "ar231x-eth", ++ .resource = ar231x_eth0_res, ++ .num_resources = ARRAY_SIZE(ar231x_eth0_res) ++ }, ++ { ++ .id = 1, ++ .name = "ar231x-eth", ++ .resource = ar231x_eth1_res, ++ .num_resources = ARRAY_SIZE(ar231x_eth1_res) ++ } ++}; ++ ++static struct resource ar231x_wmac0_res[] = { ++ { ++ .name = "wmac0_membase", ++ .flags = IORESOURCE_MEM, ++ }, ++ { ++ .name = "wmac0_irq", ++ .flags = IORESOURCE_IRQ, ++ } ++}; ++ ++static struct resource ar231x_wmac1_res[] = { ++ { ++ .name = "wmac1_membase", ++ .flags = IORESOURCE_MEM, ++ }, ++ { ++ .name = "wmac1_irq", ++ .flags = IORESOURCE_IRQ, ++ } ++}; ++ ++ ++static struct platform_device ar231x_wmac[] = { ++ { ++ .id = 0, ++ .name = "ar231x-wmac", ++ .resource = ar231x_wmac0_res, ++ .num_resources = ARRAY_SIZE(ar231x_wmac0_res), ++ .dev.platform_data = &ar231x_board, ++ }, ++ { ++ .id = 1, ++ .name = "ar231x-wmac", ++ .resource = ar231x_wmac1_res, ++ .num_resources = ARRAY_SIZE(ar231x_wmac1_res), ++ .dev.platform_data = &ar231x_board, ++ }, ++}; ++ ++static const char *devtype_strings[] = { ++ [DEV_TYPE_AR5312] = "Atheros AR5312", ++ [DEV_TYPE_AR2312] = "Atheros AR2312", ++ [DEV_TYPE_AR2313] = "Atheros AR2313", ++ [DEV_TYPE_AR2315] = "Atheros AR2315", ++ [DEV_TYPE_AR2316] = "Atheros AR2316", ++ [DEV_TYPE_AR2317] = "Atheros AR2317", ++ [DEV_TYPE_UNKNOWN] = "Atheros (unknown)", ++}; ++ ++const char *get_system_type(void) ++{ ++ if ((ar231x_devtype >= ARRAY_SIZE(devtype_strings)) || ++ !devtype_strings[ar231x_devtype]) ++ return devtype_strings[DEV_TYPE_UNKNOWN]; ++ return devtype_strings[ar231x_devtype]; ++} ++ ++ ++int __init ++ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata) ++{ ++ struct resource *res; ++ ++ ar231x_eth[nr].dev.platform_data = pdata; ++ res = &ar231x_eth[nr].resource[0]; ++ res->start = base; ++ res->end = base + 0x2000 - 1; ++ res++; ++ res->start = irq; ++ res->end = irq; ++ return platform_device_register(&ar231x_eth[nr]); ++} ++ ++void __init ++ar231x_serial_setup(u32 mapbase, unsigned int uartclk) ++{ ++ struct uart_port s; ++ ++ memset(&s, 0, sizeof(s)); ++ ++ s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; ++ s.iotype = UPIO_MEM; ++ s.irq = AR531X_MISC_IRQ_UART0; ++ s.regshift = 2; ++ s.mapbase = mapbase; ++ s.uartclk = uartclk; ++ s.membase = (void __iomem *)s.mapbase; ++ ++ early_serial_setup(&s); ++} ++ ++int __init ++ar231x_add_wmac(int nr, u32 base, int irq) ++{ ++ struct resource *res; ++ ++ ar231x_wmac[nr].dev.platform_data = &ar231x_board; ++ res = &ar231x_wmac[nr].resource[0]; ++ res->start = base; ++ res->end = base + 0x10000 - 1; ++ res++; ++ res->start = irq; ++ res->end = irq; ++ return platform_device_register(&ar231x_wmac[nr]); ++} ++ ++static int __init ar231x_register_devices(void) ++{ ++ static struct resource res = { ++ .start = 0xFFFFFFFF, ++ }; ++ ++ platform_device_register_simple("GPIODEV", 0, &res, 1); ++ ar5312_init_devices(); ++ ar2315_init_devices(); ++ ++ return 0; ++} ++ ++device_initcall(ar231x_register_devices); +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/devices.h linux-2.6.39-rc7/arch/mips/ar231x/devices.h +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/devices.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/devices.h 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,37 @@ ++#ifndef __AR231X_DEVICES_H ++#define __AR231X_DEVICES_H ++ ++enum { ++ /* handled by ar5312.c */ ++ DEV_TYPE_AR2312, ++ DEV_TYPE_AR2313, ++ DEV_TYPE_AR5312, ++ ++ /* handled by ar2315.c */ ++ DEV_TYPE_AR2315, ++ DEV_TYPE_AR2316, ++ DEV_TYPE_AR2317, ++ ++ DEV_TYPE_UNKNOWN ++}; ++ ++extern int ar231x_devtype; ++extern struct ar231x_board_config ar231x_board; ++extern 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(); ++} ++ ++#endif +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/early_printk.c linux-2.6.39-rc7/arch/mips/ar231x/early_printk.c +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/early_printk.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/early_printk.c 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,44 @@ ++/* ++ * 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) 2010 Gabor Juhos <juhosg@openwrt.org> ++ */ ++ ++#include <linux/mm.h> ++#include <linux/io.h> ++#include <linux/serial_reg.h> ++#include <asm/addrspace.h> ++ ++#include <asm/mach-ar231x/ar2315_regs.h> ++#include <asm/mach-ar231x/ar5312_regs.h> ++#include "devices.h" ++ ++static inline void prom_uart_wr(void __iomem *base, unsigned reg, ++ unsigned char ch) ++{ ++ __raw_writeb(ch, base + 4 * reg); ++} ++ ++static inline unsigned char prom_uart_rr(void __iomem *base, unsigned reg) ++{ ++ return __raw_readb(base + 4 * reg); ++} ++ ++void prom_putchar(unsigned char ch) ++{ ++ static void __iomem *base; ++ ++ if (unlikely(base == NULL)) { ++ if (is_2315()) ++ base = (void __iomem *)(KSEG1ADDR(AR2315_UART0)); ++ else ++ base = (void __iomem *)(KSEG1ADDR(AR531X_UART0)); ++ } ++ ++ while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0); ++ prom_uart_wr(base, UART_TX, ch); ++ while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0); ++} ++ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/pci.c linux-2.6.39-rc7/arch/mips/ar231x/pci.c +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/pci.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/pci.c 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,230 @@ ++/* ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version 2 ++ * of the License, or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++#include <linux/types.h> ++#include <linux/pci.h> ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/mm.h> ++#include <linux/spinlock.h> ++#include <linux/delay.h> ++#include <linux/irq.h> ++#include <asm/bootinfo.h> ++#include <asm/paccess.h> ++#include <asm/irq_cpu.h> ++#include <asm/io.h> ++#include <ar231x_platform.h> ++#include <ar231x.h> ++#include <ar2315_regs.h> ++#include "devices.h" ++ ++#define AR531X_MEM_BASE 0x80800000UL ++#define AR531X_MEM_SIZE 0x00ffffffUL ++#define AR531X_IO_SIZE 0x00007fffUL ++ ++static unsigned long configspace; ++ ++static int config_access(int devfn, int where, int size, u32 *ptr, bool write) ++{ ++ unsigned long flags; ++ int func = PCI_FUNC(devfn); ++ int dev = PCI_SLOT(devfn); ++ u32 value = 0; ++ int err = 0; ++ u32 addr; ++ ++ if (((dev != 0) && (dev != 3)) || (func > 2)) ++ return PCIBIOS_DEVICE_NOT_FOUND; ++ ++ /* Select Configuration access */ ++ local_irq_save(flags); ++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, 0, AR2315_PCIMISC_CFG_SEL); ++ mb(); ++ ++ addr = (u32) configspace + (1 << (13 + dev)) + (func << 8) + where; ++ if (size == 1) ++ addr ^= 0x3; ++ else if (size == 2) ++ addr ^= 0x2; ++ ++ if (write) { ++ value = *ptr; ++ if (size == 1) ++ err = put_dbe(value, (u8 *) addr); ++ else if (size == 2) ++ err = put_dbe(value, (u16 *) addr); ++ else if (size == 4) ++ err = put_dbe(value, (u32 *) addr); ++ } else { ++ if (size == 1) ++ err = get_dbe(value, (u8 *) addr); ++ else if (size == 2) ++ err = get_dbe(value, (u16 *) addr); ++ else if (size == 4) ++ err = get_dbe(value, (u32 *) addr); ++ if (err) ++ *ptr = 0xffffffff; ++ else ++ *ptr = value; ++ } ++ ++ /* Select Memory access */ ++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_CFG_SEL, 0); ++ local_irq_restore(flags); ++ ++ return (err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL); ++} ++ ++static int ar231x_pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * value) ++{ ++ return config_access(devfn, where, size, value, 0); ++} ++ ++static int ar231x_pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value) ++{ ++ return config_access(devfn, where, size, &value, 1); ++} ++ ++struct pci_ops ar231x_pci_ops = { ++ .read = ar231x_pci_read, ++ .write = ar231x_pci_write, ++}; ++ ++static struct resource ar231x_mem_resource = { ++ .name = "AR531x PCI MEM", ++ .start = AR531X_MEM_BASE, ++ .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE - 1 + 0x4000000, ++ .flags = IORESOURCE_MEM, ++}; ++ ++static struct resource ar231x_io_resource = { ++ .name = "AR531x PCI I/O", ++ .start = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE, ++ .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - 1, ++ .flags = IORESOURCE_IO, ++}; ++ ++struct pci_controller ar231x_pci_controller = { ++ .pci_ops = &ar231x_pci_ops, ++ .mem_resource = &ar231x_mem_resource, ++ .io_resource = &ar231x_io_resource, ++ .mem_offset = 0x00000000UL, ++ .io_offset = 0x00000000UL, ++}; ++ ++int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) ++{ ++ return AR2315_IRQ_LCBUS_PCI; ++} ++ ++int pcibios_plat_dev_init(struct pci_dev *dev) ++{ ++ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 5); ++ pci_write_config_word(dev, 0x40, 0); ++ ++ /* Clear any pending Abort or external Interrupts ++ * and enable interrupt processing */ ++ ar231x_mask_reg(AR2315_PCI_INTEN_REG, AR2315_PCI_INT_ENABLE, 0); ++ ar231x_write_reg(AR2315_PCI_INT_STATUS, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT)); ++ ar231x_write_reg(AR2315_PCI_INT_MASK, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT)); ++ ar231x_mask_reg(AR2315_PCI_INTEN_REG, 0, AR2315_PCI_INT_ENABLE); ++ ++ return 0; ++} ++ ++static void ++ar2315_pci_fixup(struct pci_dev *dev) ++{ ++ unsigned int devfn = dev->devfn; ++ ++ if (dev->bus->number != 0) ++ return; ++ ++ /* Only fix up the PCI host settings */ ++ if ((PCI_SLOT(devfn) != 3) || (PCI_FUNC(devfn) != 0)) ++ return; ++ ++ /* Fix up MBARs */ ++ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, HOST_PCI_MBAR0); ++ pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, HOST_PCI_MBAR1); ++ pci_write_config_dword(dev, PCI_BASE_ADDRESS_2, HOST_PCI_MBAR2); ++ pci_write_config_dword(dev, PCI_COMMAND, ++ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL | ++ PCI_COMMAND_INVALIDATE | PCI_COMMAND_PARITY | PCI_COMMAND_SERR | ++ PCI_COMMAND_FAST_BACK); ++} ++DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, ar2315_pci_fixup); ++ ++static int __init ++ar2315_pci_init(void) ++{ ++ u32 reg; ++ ++ if (ar231x_devtype != DEV_TYPE_AR2315) ++ return -ENODEV; ++ ++ configspace = (unsigned long) ioremap_nocache(0x80000000, 1*1024*1024); /* Remap PCI config space */ ++ ar231x_pci_controller.io_map_base = ++ (unsigned long) ioremap_nocache(AR531X_MEM_BASE + AR531X_MEM_SIZE, AR531X_IO_SIZE); ++ set_io_port_base(ar231x_pci_controller.io_map_base); /* PCI I/O space */ ++ ++ reg = ar231x_mask_reg(AR2315_RESET, 0, AR2315_RESET_PCIDMA); ++ msleep(10); ++ ++ reg &= ~AR2315_RESET_PCIDMA; ++ ar231x_write_reg(AR2315_RESET, reg); ++ msleep(10); ++ ++ ar231x_mask_reg(AR2315_ENDIAN_CTL, 0, ++ AR2315_CONFIG_PCIAHB | AR2315_CONFIG_PCIAHB_BRIDGE); ++ ++ ar231x_write_reg(AR2315_PCICLK, AR2315_PCICLK_PLLC_CLKM | ++ (AR2315_PCICLK_IN_FREQ_DIV_6 << AR2315_PCICLK_DIV_S)); ++ ar231x_mask_reg(AR2315_AHB_ARB_CTL, 0, AR2315_ARB_PCI); ++ ar231x_mask_reg(AR2315_IF_CTL, AR2315_IF_PCI_CLK_MASK | AR2315_IF_MASK, ++ AR2315_IF_PCI | AR2315_IF_PCI_HOST | AR2315_IF_PCI_INTR | ++ (AR2315_IF_PCI_CLK_OUTPUT_CLK << AR2315_IF_PCI_CLK_SHIFT)); ++ ++ /* Reset the PCI bus by setting bits 5-4 in PCI_MCFG */ ++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE, ++ AR2315_PCIRST_LOW); ++ msleep(100); ++ ++ /* Bring the PCI out of reset */ ++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE, ++ AR2315_PCIRST_HIGH | AR2315_PCICACHE_DIS | 0x8); ++ ++ ar231x_write_reg(AR2315_PCI_UNCACHE_CFG, ++ 0x1E | /* 1GB uncached */ ++ (1 << 5) | /* Enable uncached */ ++ (0x2 << 30) /* Base: 0x80000000 */ ++ ); ++ ar231x_read_reg(AR2315_PCI_UNCACHE_CFG); ++ ++ msleep(500); ++ ++ /* dirty hack - anyone with a datasheet that knows the memory map ? */ ++ ioport_resource.start = 0x10000000; ++ ioport_resource.end = 0xffffffff; ++ iomem_resource.start = 0x10000000; ++ iomem_resource.end = 0xffffffff; ++ ++ register_pci_controller(&ar231x_pci_controller); ++ ++ return 0; ++} ++ ++arch_initcall(ar2315_pci_init); +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/prom.c linux-2.6.39-rc7/arch/mips/ar231x/prom.c +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/prom.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/prom.c 2011-05-15 21:34:57.000000000 +0200 +@@ -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) ++{ ++} +diff -Nur linux-2.6.39-rc7.orig/arch/mips/ar231x/reset.c linux-2.6.39-rc7/arch/mips/ar231x/reset.c +--- linux-2.6.39-rc7.orig/arch/mips/ar231x/reset.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/ar231x/reset.c 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,161 @@ ++#include <linux/init.h> ++#include <linux/module.h> ++#include <linux/timer.h> ++#include <linux/interrupt.h> ++#include <linux/kobject.h> ++#include <linux/workqueue.h> ++#include <linux/skbuff.h> ++#include <linux/netlink.h> ++#include <net/sock.h> ++#include <asm/uaccess.h> ++#include <ar231x_platform.h> ++#include <ar231x.h> ++#include <gpio.h> ++#include "devices.h" ++ ++#define AR531X_RESET_GPIO_IRQ (AR531X_GPIO_IRQ(ar231x_board.config->resetConfigGpio)) ++ ++struct event_t { ++ struct work_struct wq; ++ int set; ++ unsigned long jiffies; ++}; ++ ++static struct timer_list rst_button_timer; ++static unsigned long seen; ++ ++struct sock *uevent_sock = NULL; ++EXPORT_SYMBOL_GPL(uevent_sock); ++extern u64 uevent_next_seqnum(void); ++ ++static int no_release_workaround = 1; ++module_param(no_release_workaround, int, 0); ++ ++static inline void ++add_msg(struct sk_buff *skb, char *msg) ++{ ++ char *scratch; ++ scratch = skb_put(skb, strlen(msg) + 1); ++ sprintf(scratch, msg); ++} ++ ++static void ++hotplug_button(struct work_struct *wq) ++{ ++ struct sk_buff *skb; ++ struct event_t *event; ++ size_t len; ++ char *scratch, *s; ++ char buf[128]; ++ ++ event = container_of(wq, struct event_t, wq); ++ if (!uevent_sock) ++ goto done; ++ ++ /* allocate message with the maximum possible size */ ++ s = event->set ? "pressed" : "released"; ++ len = strlen(s) + 2; ++ skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); ++ if (!skb) ++ goto done; ++ ++ /* add header */ ++ scratch = skb_put(skb, len); ++ sprintf(scratch, "%s@",s); ++ ++ /* copy keys to our continuous event payload buffer */ ++ add_msg(skb, "HOME=/"); ++ add_msg(skb, "PATH=/sbin:/bin:/usr/sbin:/usr/bin"); ++ add_msg(skb, "SUBSYSTEM=button"); ++ add_msg(skb, "BUTTON=reset"); ++ add_msg(skb, (event->set ? "ACTION=pressed" : "ACTION=released")); ++ sprintf(buf, "SEEN=%ld", (event->jiffies - seen)/HZ); ++ add_msg(skb, buf); ++ snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum()); ++ add_msg(skb, buf); ++ ++ NETLINK_CB(skb).dst_group = 1; ++ netlink_broadcast(uevent_sock, skb, 0, 1, GFP_KERNEL); ++ ++done: ++ kfree(event); ++} ++ ++static void ++reset_button_poll(unsigned long unused) ++{ ++ struct event_t *event; ++ int gpio = ~0; ++ ++ if(!no_release_workaround) ++ return; ++ ++ gpio = ar231x_gpiodev->get(); ++ gpio &= (1 << (AR531X_RESET_GPIO_IRQ - AR531X_GPIO_IRQ_BASE)); ++ if(gpio) { ++ rst_button_timer.expires = jiffies + (HZ / 4); ++ add_timer(&rst_button_timer); ++ return; ++ } ++ ++ event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC); ++ if (!event) ++ return; ++ ++ event->set = 0; ++ event->jiffies = jiffies; ++ INIT_WORK(&event->wq, hotplug_button); ++ schedule_work(&event->wq); ++} ++ ++static irqreturn_t ++button_handler(int irq, void *dev_id) ++{ ++ static int pressed = 0; ++ struct event_t *event; ++ u32 gpio = ~0; ++ ++ event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC); ++ if (!event) ++ return IRQ_NONE; ++ ++ pressed = !pressed; ++ ++ gpio = ar231x_gpiodev->get() & (1 << (irq - AR531X_GPIO_IRQ_BASE)); ++ ++ event->set = gpio; ++ if(!event->set) ++ no_release_workaround = 0; ++ ++ event->jiffies = jiffies; ++ ++ INIT_WORK(&event->wq, hotplug_button); ++ schedule_work(&event->wq); ++ ++ seen = jiffies; ++ if(event->set && no_release_workaround) ++ mod_timer(&rst_button_timer, jiffies + (HZ / 4)); ++ ++ return IRQ_HANDLED; ++} ++ ++ ++static int __init ++ar231x_init_reset(void) ++{ ++ seen = jiffies; ++ ++ if (ar231x_board.config->resetConfigGpio == 0xffff) ++ return -ENODEV; ++ ++ init_timer(&rst_button_timer); ++ rst_button_timer.function = reset_button_poll; ++ rst_button_timer.expires = jiffies + HZ / 50; ++ add_timer(&rst_button_timer); ++ ++ request_irq(AR531X_RESET_GPIO_IRQ, &button_handler, IRQF_SAMPLE_RANDOM, "ar231x_reset", NULL); ++ ++ return 0; ++} ++ ++module_init(ar231x_init_reset); +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar2315_regs.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar2315_regs.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar2315_regs.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar2315_regs.h 2011-05-15 21:44:12.000000000 +0200 +@@ -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 */ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar2315_spiflash.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar2315_spiflash.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar2315_spiflash.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar2315_spiflash.h 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,116 @@ ++/* ++ * SPI Flash Memory support header file. ++ * ++ * Copyright (c) 2005, Atheros Communications Inc. ++ * Copyright (C) 2006 FON Technology, SL. ++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org> ++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org> ++ * ++ * This code 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 __AR2315_SPIFLASH_H ++#define __AR2315_SPIFLASH_H ++ ++#define STM_PAGE_SIZE 256 ++ ++#define SFI_WRITE_BUFFER_SIZE 4 ++#define SFI_FLASH_ADDR_MASK 0x00ffffff ++ ++#define STM_8MBIT_SIGNATURE 0x13 ++#define STM_M25P80_BYTE_COUNT 1048576 ++#define STM_M25P80_SECTOR_COUNT 16 ++#define STM_M25P80_SECTOR_SIZE 0x10000 ++ ++#define STM_16MBIT_SIGNATURE 0x14 ++#define STM_M25P16_BYTE_COUNT 2097152 ++#define STM_M25P16_SECTOR_COUNT 32 ++#define STM_M25P16_SECTOR_SIZE 0x10000 ++ ++#define STM_32MBIT_SIGNATURE 0x15 ++#define STM_M25P32_BYTE_COUNT 4194304 ++#define STM_M25P32_SECTOR_COUNT 64 ++#define STM_M25P32_SECTOR_SIZE 0x10000 ++ ++#define STM_64MBIT_SIGNATURE 0x16 ++#define STM_M25P64_BYTE_COUNT 8388608 ++#define STM_M25P64_SECTOR_COUNT 128 ++#define STM_M25P64_SECTOR_SIZE 0x10000 ++ ++#define STM_128MBIT_SIGNATURE 0x17 ++#define STM_M25P128_BYTE_COUNT 16777216 ++#define STM_M25P128_SECTOR_COUNT 256 ++#define STM_M25P128_SECTOR_SIZE 0x10000 ++ ++#define STM_1MB_BYTE_COUNT STM_M25P80_BYTE_COUNT ++#define STM_1MB_SECTOR_COUNT STM_M25P80_SECTOR_COUNT ++#define STM_1MB_SECTOR_SIZE STM_M25P80_SECTOR_SIZE ++#define STM_2MB_BYTE_COUNT STM_M25P16_BYTE_COUNT ++#define STM_2MB_SECTOR_COUNT STM_M25P16_SECTOR_COUNT ++#define STM_2MB_SECTOR_SIZE STM_M25P16_SECTOR_SIZE ++#define STM_4MB_BYTE_COUNT STM_M25P32_BYTE_COUNT ++#define STM_4MB_SECTOR_COUNT STM_M25P32_SECTOR_COUNT ++#define STM_4MB_SECTOR_SIZE STM_M25P32_SECTOR_SIZE ++#define STM_8MB_BYTE_COUNT STM_M25P64_BYTE_COUNT ++#define STM_8MB_SECTOR_COUNT STM_M25P64_SECTOR_COUNT ++#define STM_8MB_SECTOR_SIZE STM_M25P64_SECTOR_SIZE ++#define STM_16MB_BYTE_COUNT STM_M25P128_BYTE_COUNT ++#define STM_16MB_SECTOR_COUNT STM_M25P128_SECTOR_COUNT ++#define STM_16MB_SECTOR_SIZE STM_M25P128_SECTOR_SIZE ++ ++/* ++ * ST Microelectronics Opcodes for Serial Flash ++ */ ++ ++#define STM_OP_WR_ENABLE 0x06 /* Write Enable */ ++#define STM_OP_WR_DISABLE 0x04 /* Write Disable */ ++#define STM_OP_RD_STATUS 0x05 /* Read Status */ ++#define STM_OP_WR_STATUS 0x01 /* Write Status */ ++#define STM_OP_RD_DATA 0x03 /* Read Data */ ++#define STM_OP_FAST_RD_DATA 0x0b /* Fast Read Data */ ++#define STM_OP_PAGE_PGRM 0x02 /* Page Program */ ++#define STM_OP_SECTOR_ERASE 0xd8 /* Sector Erase */ ++#define STM_OP_BULK_ERASE 0xc7 /* Bulk Erase */ ++#define STM_OP_DEEP_PWRDOWN 0xb9 /* Deep Power-Down Mode */ ++#define STM_OP_RD_SIG 0xab /* Read Electronic Signature */ ++ ++#define STM_STATUS_WIP 0x01 /* Write-In-Progress */ ++#define STM_STATUS_WEL 0x02 /* Write Enable Latch */ ++#define STM_STATUS_BP0 0x04 /* Block Protect 0 */ ++#define STM_STATUS_BP1 0x08 /* Block Protect 1 */ ++#define STM_STATUS_BP2 0x10 /* Block Protect 2 */ ++#define STM_STATUS_SRWD 0x80 /* Status Register Write Disable */ ++ ++/* ++ * SPI Flash Interface Registers ++ */ ++#define AR531XPLUS_SPI_READ 0x08000000 ++#define AR531XPLUS_SPI_MMR 0x11300000 ++#define AR531XPLUS_SPI_MMR_SIZE 12 ++ ++#define AR531XPLUS_SPI_CTL 0x00 ++#define AR531XPLUS_SPI_OPCODE 0x04 ++#define AR531XPLUS_SPI_DATA 0x08 ++ ++#define SPI_FLASH_READ AR531XPLUS_SPI_READ ++#define SPI_FLASH_MMR AR531XPLUS_SPI_MMR ++#define SPI_FLASH_MMR_SIZE AR531XPLUS_SPI_MMR_SIZE ++#define SPI_FLASH_CTL AR531XPLUS_SPI_CTL ++#define SPI_FLASH_OPCODE AR531XPLUS_SPI_OPCODE ++#define SPI_FLASH_DATA AR531XPLUS_SPI_DATA ++ ++#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 ++ ++#define SPI_STATUS_WIP STM_STATUS_WIP ++ ++#endif +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar231x.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar231x.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar231x.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar231x.h 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,54 @@ ++#ifndef __AR531X_H ++#define __AR531X_H ++ ++#define AR531X_MISC_IRQ_BASE 0x20 ++#define AR531X_GPIO_IRQ_BASE 0x30 ++ ++/* Software's idea of interrupts handled by "CPU Interrupt Controller" */ ++#define AR531X_IRQ_NONE MIPS_CPU_IRQ_BASE+0 ++#define AR531X_IRQ_CPU_CLOCK MIPS_CPU_IRQ_BASE+7 /* C0_CAUSE: 0x8000 */ ++ ++/* Miscellaneous interrupts, which share IP6 */ ++#define AR531X_MISC_IRQ_NONE AR531X_MISC_IRQ_BASE+0 ++#define AR531X_MISC_IRQ_TIMER AR531X_MISC_IRQ_BASE+1 ++#define AR531X_MISC_IRQ_AHB_PROC AR531X_MISC_IRQ_BASE+2 ++#define AR531X_MISC_IRQ_AHB_DMA AR531X_MISC_IRQ_BASE+3 ++#define AR531X_MISC_IRQ_GPIO AR531X_MISC_IRQ_BASE+4 ++#define AR531X_MISC_IRQ_UART0 AR531X_MISC_IRQ_BASE+5 ++#define AR531X_MISC_IRQ_UART0_DMA AR531X_MISC_IRQ_BASE+6 ++#define AR531X_MISC_IRQ_WATCHDOG AR531X_MISC_IRQ_BASE+7 ++#define AR531X_MISC_IRQ_LOCAL AR531X_MISC_IRQ_BASE+8 ++#define AR531X_MISC_IRQ_SPI AR531X_MISC_IRQ_BASE+9 ++#define AR531X_MISC_IRQ_COUNT 10 ++ ++/* GPIO Interrupts [0..7], share AR531X_MISC_IRQ_GPIO */ ++#define AR531X_GPIO_IRQ_NONE AR531X_GPIO_IRQ_BASE+0 ++#define AR531X_GPIO_IRQ(n) AR531X_GPIO_IRQ_BASE+n ++#define AR531X_GPIO_IRQ_COUNT 22 ++ ++static inline u32 ++ar231x_read_reg(u32 reg) ++{ ++ return __raw_readl((u32 *) 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 +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar231x_platform.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar231x_platform.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar231x_platform.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar231x_platform.h 2011-05-15 21:34:57.000000000 +0200 +@@ -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 */ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar5312_regs.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar5312_regs.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/ar5312_regs.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/ar5312_regs.h 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,236 @@ ++/* ++ * This file is subject to the terms and conditions of the GNU General Public ++ * License. See the file "COPYING" in the main directory of this archive ++ * for more details. ++ * ++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved. ++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org> ++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> ++ */ ++ ++#ifndef AR5312_H ++#define AR5312_H ++ ++#include <asm/addrspace.h> ++ ++/* ++ * IRQs ++ */ ++ ++#define AR5312_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */ ++#define AR5312_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */ ++#define AR5312_IRQ_ENET1_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */ ++#define AR5312_IRQ_WLAN1_INTRS MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */ ++#define AR5312_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */ ++ ++ ++/* Address Map */ ++#define AR531X_WLAN0 0x18000000 ++#define AR531X_WLAN1 0x18500000 ++#define AR531X_ENET0 0x18100000 ++#define AR531X_ENET1 0x18200000 ++#define AR531X_SDRAMCTL 0x18300000 ++#define AR531X_FLASHCTL 0x18400000 ++#define AR531X_APBBASE 0x1c000000 ++#define AR531X_FLASH 0x1e000000 ++#define AR531X_UART0 0xbc000003 /* UART MMR */ ++ ++/* ++ * AR531X_NUM_ENET_MAC defines the number of ethernet MACs that ++ * should be considered available. The AR5312 supports 2 enet MACS, ++ * even though many reference boards only actually use 1 of them ++ * (i.e. Only MAC 0 is actually connected to an enet PHY or PHY switch. ++ * The AR2312 supports 1 enet MAC. ++ */ ++#define AR531X_NUM_ENET_MAC 2 ++ ++/* ++ * Need these defines to determine true number of ethernet MACs ++ */ ++#define AR5212_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */ ++#define AR5212_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */ ++#define AR5212_AR2313_REV8 0x0058 /* AR2313 WMAC (AP43-030) */ ++#define AR531X_RADIO_MASK_OFF 0xc8 ++#define AR531X_RADIO0_MASK 0x0003 ++#define AR531X_RADIO1_MASK 0x000c ++#define AR531X_RADIO1_S 2 ++ ++/* ++ * AR531X_NUM_WMAC defines the number of Wireless MACs that\ ++ * should be considered available. ++ */ ++#define AR531X_NUM_WMAC 2 ++ ++/* Reset/Timer Block Address Map */ ++#define AR531X_RESETTMR (AR531X_APBBASE + 0x3000) ++#define AR531X_TIMER (AR531X_RESETTMR + 0x0000) /* countdown timer */ ++#define AR531X_WD_CTRL (AR531X_RESETTMR + 0x0008) /* watchdog cntrl */ ++#define AR531X_WD_TIMER (AR531X_RESETTMR + 0x000c) /* watchdog timer */ ++#define AR531X_ISR (AR531X_RESETTMR + 0x0010) /* Intr Status Reg */ ++#define AR531X_IMR (AR531X_RESETTMR + 0x0014) /* Intr Mask Reg */ ++#define AR531X_RESET (AR531X_RESETTMR + 0x0020) ++#define AR5312_CLOCKCTL1 (AR531X_RESETTMR + 0x0064) ++#define AR5312_SCRATCH (AR531X_RESETTMR + 0x006c) ++#define AR531X_PROCADDR (AR531X_RESETTMR + 0x0070) ++#define AR531X_PROC1 (AR531X_RESETTMR + 0x0074) ++#define AR531X_DMAADDR (AR531X_RESETTMR + 0x0078) ++#define AR531X_DMA1 (AR531X_RESETTMR + 0x007c) ++#define AR531X_ENABLE (AR531X_RESETTMR + 0x0080) /* interface enb */ ++#define AR531X_REV (AR531X_RESETTMR + 0x0090) /* revision */ ++ ++/* AR531X_WD_CTRL register bit field definitions */ ++#define AR531X_WD_CTRL_IGNORE_EXPIRATION 0x0000 ++#define AR531X_WD_CTRL_NMI 0x0001 ++#define AR531X_WD_CTRL_RESET 0x0002 ++ ++/* AR531X_ISR register bit field definitions */ ++#define AR531X_ISR_NONE 0x0000 ++#define AR531X_ISR_TIMER 0x0001 ++#define AR531X_ISR_AHBPROC 0x0002 ++#define AR531X_ISR_AHBDMA 0x0004 ++#define AR531X_ISR_GPIO 0x0008 ++#define AR531X_ISR_UART0 0x0010 ++#define AR531X_ISR_UART0DMA 0x0020 ++#define AR531X_ISR_WD 0x0040 ++#define AR531X_ISR_LOCAL 0x0080 ++ ++/* AR531X_RESET register bit field definitions */ ++#define AR531X_RESET_SYSTEM 0x00000001 /* cold reset full system */ ++#define AR531X_RESET_PROC 0x00000002 /* cold reset MIPS core */ ++#define AR531X_RESET_WLAN0 0x00000004 /* cold reset WLAN MAC and BB */ ++#define AR531X_RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */ ++#define AR531X_RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */ ++#define AR531X_RESET_ENET0 0x00000020 /* cold reset ENET0 mac */ ++#define AR531X_RESET_ENET1 0x00000040 /* cold reset ENET1 mac */ ++#define AR531X_RESET_UART0 0x00000100 /* cold reset UART0 (high speed) */ ++#define AR531X_RESET_WLAN1 0x00000200 /* cold reset WLAN MAC/BB */ ++#define AR531X_RESET_APB 0x00000400 /* cold reset APB (ar5312) */ ++#define AR531X_RESET_WARM_PROC 0x00001000 /* warm reset MIPS core */ ++#define AR531X_RESET_WARM_WLAN0_MAC 0x00002000 /* warm reset WLAN0 MAC */ ++#define AR531X_RESET_WARM_WLAN0_BB 0x00004000 /* warm reset WLAN0 BaseBand */ ++#define AR531X_RESET_NMI 0x00010000 /* send an NMI to the processor */ ++#define AR531X_RESET_WARM_WLAN1_MAC 0x00020000 /* warm reset WLAN1 mac */ ++#define AR531X_RESET_WARM_WLAN1_BB 0x00040000 /* warm reset WLAN1 baseband */ ++#define AR531X_RESET_LOCAL_BUS 0x00080000 /* reset local bus */ ++#define AR531X_RESET_WDOG 0x00100000 /* last reset was a watchdog */ ++ ++#define AR531X_RESET_WMAC0_BITS \ ++ AR531X_RESET_WLAN0 |\ ++ AR531X_RESET_WARM_WLAN0_MAC |\ ++ AR531X_RESET_WARM_WLAN0_BB ++ ++#define AR531X_RESERT_WMAC1_BITS \ ++ AR531X_RESET_WLAN1 |\ ++ AR531X_RESET_WARM_WLAN1_MAC |\ ++ AR531X_RESET_WARM_WLAN1_BB ++ ++/* AR5312_CLOCKCTL1 register bit field definitions */ ++#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030 ++#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4 ++#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00 ++#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8 ++#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000 ++ ++/* Valid for AR5312 and AR2312 */ ++#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030 ++#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4 ++#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00 ++#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8 ++#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000 ++ ++/* Valid for AR2313 */ ++#define AR2313_CLOCKCTL1_PREDIVIDE_MASK 0x00003000 ++#define AR2313_CLOCKCTL1_PREDIVIDE_SHIFT 12 ++#define AR2313_CLOCKCTL1_MULTIPLIER_MASK 0x001f0000 ++#define AR2313_CLOCKCTL1_MULTIPLIER_SHIFT 16 ++#define AR2313_CLOCKCTL1_DOUBLER_MASK 0x00000000 ++ ++ ++/* AR531X_ENABLE register bit field definitions */ ++#define AR531X_ENABLE_WLAN0 0x0001 ++#define AR531X_ENABLE_ENET0 0x0002 ++#define AR531X_ENABLE_ENET1 0x0004 ++#define AR531X_ENABLE_UART_AND_WLAN1_PIO 0x0008 /* UART, and WLAN1 PIOs */ ++#define AR531X_ENABLE_WLAN1_DMA 0x0010 /* WLAN1 DMAs */ ++#define AR531X_ENABLE_WLAN1 \ ++ (AR531X_ENABLE_UART_AND_WLAN1_PIO | AR531X_ENABLE_WLAN1_DMA) ++ ++/* AR531X_REV register bit field definitions */ ++#define AR531X_REV_WMAC_MAJ 0xf000 ++#define AR531X_REV_WMAC_MAJ_S 12 ++#define AR531X_REV_WMAC_MIN 0x0f00 ++#define AR531X_REV_WMAC_MIN_S 8 ++#define AR531X_REV_MAJ 0x00f0 ++#define AR531X_REV_MAJ_S 4 ++#define AR531X_REV_MIN 0x000f ++#define AR531X_REV_MIN_S 0 ++#define AR531X_REV_CHIP (AR531X_REV_MAJ|AR531X_REV_MIN) ++ ++/* Major revision numbers, bits 7..4 of Revision ID register */ ++#define AR531X_REV_MAJ_AR5312 0x4 ++#define AR531X_REV_MAJ_AR2313 0x5 ++ ++/* Minor revision numbers, bits 3..0 of Revision ID register */ ++#define AR5312_REV_MIN_DUAL 0x0 /* Dual WLAN version */ ++#define AR5312_REV_MIN_SINGLE 0x1 /* Single WLAN version */ ++ ++/* AR531X_FLASHCTL register bit field definitions */ ++#define FLASHCTL_IDCY 0x0000000f /* Idle cycle turn around time */ ++#define FLASHCTL_IDCY_S 0 ++#define FLASHCTL_WST1 0x000003e0 /* Wait state 1 */ ++#define FLASHCTL_WST1_S 5 ++#define FLASHCTL_RBLE 0x00000400 /* Read byte lane enable */ ++#define FLASHCTL_WST2 0x0000f800 /* Wait state 2 */ ++#define FLASHCTL_WST2_S 11 ++#define FLASHCTL_AC 0x00070000 /* Flash address check (added) */ ++#define FLASHCTL_AC_S 16 ++#define FLASHCTL_AC_128K 0x00000000 ++#define FLASHCTL_AC_256K 0x00010000 ++#define FLASHCTL_AC_512K 0x00020000 ++#define FLASHCTL_AC_1M 0x00030000 ++#define FLASHCTL_AC_2M 0x00040000 ++#define FLASHCTL_AC_4M 0x00050000 ++#define FLASHCTL_AC_8M 0x00060000 ++#define FLASHCTL_AC_RES 0x00070000 /* 16MB is not supported */ ++#define FLASHCTL_E 0x00080000 /* Flash bank enable (added) */ ++#define FLASHCTL_BUSERR 0x01000000 /* Bus transfer error status flag */ ++#define FLASHCTL_WPERR 0x02000000 /* Write protect error status flag */ ++#define FLASHCTL_WP 0x04000000 /* Write protect */ ++#define FLASHCTL_BM 0x08000000 /* Burst mode */ ++#define FLASHCTL_MW 0x30000000 /* Memory width */ ++#define FLASHCTL_MWx8 0x00000000 /* Memory width x8 */ ++#define FLASHCTL_MWx16 0x10000000 /* Memory width x16 */ ++#define FLASHCTL_MWx32 0x20000000 /* Memory width x32 (not supported) */ ++#define FLASHCTL_ATNR 0x00000000 /* Access type == no retry */ ++#define FLASHCTL_ATR 0x80000000 /* Access type == retry every */ ++#define FLASHCTL_ATR4 0xc0000000 /* Access type == retry every 4 */ ++ ++/* ARM Flash Controller -- 3 flash banks with either x8 or x16 devices. */ ++#define AR531X_FLASHCTL0 (AR531X_FLASHCTL + 0x00) ++#define AR531X_FLASHCTL1 (AR531X_FLASHCTL + 0x04) ++#define AR531X_FLASHCTL2 (AR531X_FLASHCTL + 0x08) ++ ++/* ARM SDRAM Controller -- just enough to determine memory size */ ++#define AR531X_MEM_CFG1 (AR531X_SDRAMCTL + 0x04) ++#define MEM_CFG1_AC0 0x00000700 /* bank 0: SDRAM addr check (added) */ ++#define MEM_CFG1_AC0_S 8 ++#define MEM_CFG1_AC1 0x00007000 /* bank 1: SDRAM addr check (added) */ ++#define MEM_CFG1_AC1_S 12 ++ ++/* GPIO Address Map */ ++#define AR531X_GPIO (AR531X_APBBASE + 0x2000) ++#define AR531X_GPIO_DO (AR531X_GPIO + 0x00) /* output register */ ++#define AR531X_GPIO_DI (AR531X_GPIO + 0x04) /* intput register */ ++#define AR531X_GPIO_CR (AR531X_GPIO + 0x08) /* control register */ ++ ++/* GPIO Control Register bit field definitions */ ++#define AR531X_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */ ++#define AR531X_GPIO_CR_O(x) (0 << (x)) /* mask for output */ ++#define AR531X_GPIO_CR_I(x) (1 << (x)) /* mask for input */ ++#define AR531X_GPIO_CR_INT(x) (1 << ((x)+8)) /* mask for interrupt */ ++#define AR531X_GPIO_CR_UART(x) (1 << ((x)+16)) /* uart multiplex */ ++#define AR531X_NUM_GPIO 8 ++ ++ ++#endif ++ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h 2011-05-15 21:34:57.000000000 +0200 +@@ -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 */ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/dma-coherence.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/dma-coherence.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/dma-coherence.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/dma-coherence.h 2011-05-15 21:41:19.000000000 +0200 +@@ -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 */ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/gpio.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/gpio.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/gpio.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/gpio.h 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,84 @@ ++#ifndef _ATHEROS_GPIO_H_ ++#define _ATHEROS_GPIO_H_ ++ ++#include <ar231x.h> ++ ++struct ar231x_gpiodev { ++ u32 valid_mask; ++ u32 (*get_output)(void); ++ u32 (*set_output)(u32 mask, u32 val); ++ u32 (*get)(void); ++ u32 (*set)(u32 mask, u32 val); ++}; ++ ++extern const struct ar231x_gpiodev *ar231x_gpiodev; ++ ++/* ++ * Wrappers for the generic GPIO layer ++ */ ++ ++static inline int gpio_direction_input(unsigned gpio) { ++ u32 mask = 1 << gpio; ++ ++ if (!(ar231x_gpiodev->valid_mask & mask)) ++ return -ENXIO; ++ ++ ar231x_gpiodev->set_output(mask, 0); ++ return 0; ++} ++ ++static inline void gpio_set_value(unsigned gpio, int value) { ++ u32 mask = 1 << gpio; ++ ++ if (!(ar231x_gpiodev->valid_mask & mask)) ++ return; ++ ++ ar231x_gpiodev->set(mask, (!!value) * mask); ++} ++ ++static inline int gpio_direction_output(unsigned gpio, int value) { ++ u32 mask = 1 << gpio; ++ ++ if (!(ar231x_gpiodev->valid_mask & mask)) ++ return -ENXIO; ++ ++ ar231x_gpiodev->set_output(mask, mask); ++ ar231x_gpiodev->set(mask, (!!value) * mask); ++ return 0; ++} ++ ++/* Reads the gpio pin. Unchecked function */ ++static inline int gpio_get_value(unsigned gpio) { ++ u32 mask = 1 << gpio; ++ ++ if (!(ar231x_gpiodev->valid_mask & mask)) ++ return 0; ++ ++ return !!(ar231x_gpiodev->get() & mask); ++} ++ ++static inline int gpio_request(unsigned gpio, const char *label) { ++ return 0; ++} ++ ++static inline void gpio_free(unsigned gpio) { ++} ++ ++/* Returns IRQ to attach for gpio. Unchecked function */ ++static inline int gpio_to_irq(unsigned gpio) { ++ return AR531X_GPIO_IRQ(gpio); ++} ++ ++/* Returns gpio for IRQ attached. Unchecked function */ ++static inline int irq_to_gpio(unsigned irq) { ++ return (irq - (AR531X_GPIO_IRQ(0))); ++} ++ ++static inline int gpio_set_debounce(unsigned gpio, unsigned debounce) ++{ ++ return -ENOSYS; ++} ++ ++#include <asm-generic/gpio.h> /* cansleep wrappers */ ++ ++#endif +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/reset.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/reset.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/reset.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/reset.h 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,6 @@ ++#ifndef __AR531X_RESET_H ++#define __AR531X_RESET_H ++ ++void ar531x_disable_reset_button(void); ++ ++#endif /* __AR531X_RESET_H */ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/war.h linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/war.h +--- linux-2.6.39-rc7.orig/arch/mips/include/asm/mach-ar231x/war.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/arch/mips/include/asm/mach-ar231x/war.h 2011-05-15 21:34:57.000000000 +0200 +@@ -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 */ +diff -Nur linux-2.6.39-rc7.orig/arch/mips/kernel/cevt-r4k.c linux-2.6.39-rc7/arch/mips/kernel/cevt-r4k.c +--- linux-2.6.39-rc7.orig/arch/mips/kernel/cevt-r4k.c 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/arch/mips/kernel/cevt-r4k.c 2011-05-15 21:34:57.000000000 +0200 +@@ -168,20 +168,23 @@ + struct clock_event_device *cd; + unsigned int irq; + +- if (!cpu_has_counter || !mips_hpt_frequency) +- return -ENXIO; +- +- if (!c0_compare_int_usable()) +- return -ENXIO; +- + /* + * With vectored interrupts things are getting platform specific. + * get_c0_compare_int is a hook to allow a platform to return the + * interrupt number of it's liking. + */ + irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; +- if (get_c0_compare_int) ++ if (get_c0_compare_int) { + irq = get_c0_compare_int(); ++ if ((irq >= MIPS_CPU_IRQ_BASE) && (irq < MIPS_CPU_IRQ_BASE + 8)) ++ cp0_compare_irq = irq - MIPS_CPU_IRQ_BASE; ++ } ++ ++ if (!cpu_has_counter || !mips_hpt_frequency) ++ return -ENXIO; ++ ++ if (!c0_compare_int_usable()) ++ return -ENXIO; + + cd = &per_cpu(mips_clockevent_device, cpu); + +diff -Nur linux-2.6.39-rc7.orig/drivers/mtd/devices/Kconfig linux-2.6.39-rc7/drivers/mtd/devices/Kconfig +--- linux-2.6.39-rc7.orig/drivers/mtd/devices/Kconfig 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/drivers/mtd/devices/Kconfig 2011-05-15 21:34:57.000000000 +0200 +@@ -112,6 +112,10 @@ + Set up your spi devices with the right board-specific platform data, + if you want to specify device partitioning. + ++config MTD_AR2315 ++ tristate "Atheros AR2315+ SPI Flash support" ++ depends on ATHEROS_AR2315 ++ + config MTD_SLRAM + tristate "Uncached system RAM" + help +diff -Nur linux-2.6.39-rc7.orig/drivers/mtd/devices/Makefile linux-2.6.39-rc7/drivers/mtd/devices/Makefile +--- linux-2.6.39-rc7.orig/drivers/mtd/devices/Makefile 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/drivers/mtd/devices/Makefile 2011-05-15 21:34:57.000000000 +0200 +@@ -17,3 +17,4 @@ + obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o + obj-$(CONFIG_MTD_M25P80) += m25p80.o + obj-$(CONFIG_MTD_SST25L) += sst25l.o ++obj-$(CONFIG_MTD_AR2315) += ar2315.o +diff -Nur linux-2.6.39-rc7.orig/drivers/mtd/devices/ar2315.c linux-2.6.39-rc7/drivers/mtd/devices/ar2315.c +--- linux-2.6.39-rc7.orig/drivers/mtd/devices/ar2315.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/drivers/mtd/devices/ar2315.c 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,517 @@ ++ ++/* ++ * MTD driver for the SPI Flash Memory support on Atheros AR2315 ++ * ++ * Copyright (c) 2005-2006 Atheros Communications Inc. ++ * Copyright (C) 2006-2007 FON Technology, SL. ++ * Copyright (C) 2006-2007 Imre Kaloz <kaloz@openwrt.org> ++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org> ++ * ++ * This code 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. ++ * ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/version.h> ++#include <linux/errno.h> ++#include <linux/slab.h> ++#include <linux/mtd/mtd.h> ++#include <linux/mtd/partitions.h> ++#include <linux/platform_device.h> ++#include <linux/sched.h> ++#include <linux/root_dev.h> ++#include <linux/delay.h> ++#include <asm/delay.h> ++#include <asm/io.h> ++ ++#include <ar2315_spiflash.h> ++#include <ar231x_platform.h> ++#include <ar231x.h> ++ ++ ++#define SPIFLASH "spiflash: " ++#define busy_wait(_priv, _condition, _wait) do { \ ++ while (_condition) { \ ++ spin_unlock_bh(&_priv->lock); \ ++ if (_wait > 1) \ ++ msleep(_wait); \ ++ else if ((_wait == 1) && need_resched()) \ ++ schedule(); \ ++ else \ ++ udelay(1); \ ++ spin_lock_bh(&_priv->lock); \ ++ } \ ++} while (0) ++ ++enum { ++ FLASH_NONE, ++ FLASH_1MB, ++ FLASH_2MB, ++ FLASH_4MB, ++ FLASH_8MB, ++ FLASH_16MB, ++}; ++ ++/* Flash configuration table */ ++struct flashconfig { ++ u32 byte_cnt; ++ u32 sector_cnt; ++ u32 sector_size; ++}; ++ ++const struct flashconfig flashconfig_tbl[] = { ++ [FLASH_NONE] = { 0, 0, 0}, ++ [FLASH_1MB] = { STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT, STM_1MB_SECTOR_SIZE}, ++ [FLASH_2MB] = { STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT, STM_2MB_SECTOR_SIZE}, ++ [FLASH_4MB] = { STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT, STM_4MB_SECTOR_SIZE}, ++ [FLASH_8MB] = { STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT, STM_8MB_SECTOR_SIZE}, ++ [FLASH_16MB] = { STM_16MB_BYTE_COUNT, STM_16MB_SECTOR_COUNT, STM_16MB_SECTOR_SIZE} ++}; ++ ++/* Mapping of generic opcodes to STM serial flash opcodes */ ++enum { ++ SPI_WRITE_ENABLE, ++ SPI_WRITE_DISABLE, ++ SPI_RD_STATUS, ++ SPI_WR_STATUS, ++ SPI_RD_DATA, ++ SPI_FAST_RD_DATA, ++ SPI_PAGE_PROGRAM, ++ SPI_SECTOR_ERASE, ++ SPI_BULK_ERASE, ++ SPI_DEEP_PWRDOWN, ++ SPI_RD_SIG, ++}; ++ ++struct opcodes { ++ __u16 code; ++ __s8 tx_cnt; ++ __s8 rx_cnt; ++}; ++const struct opcodes stm_opcodes[] = { ++ [SPI_WRITE_ENABLE] = {STM_OP_WR_ENABLE, 1, 0}, ++ [SPI_WRITE_DISABLE] = {STM_OP_WR_DISABLE, 1, 0}, ++ [SPI_RD_STATUS] = {STM_OP_RD_STATUS, 1, 1}, ++ [SPI_WR_STATUS] = {STM_OP_WR_STATUS, 1, 0}, ++ [SPI_RD_DATA] = {STM_OP_RD_DATA, 4, 4}, ++ [SPI_FAST_RD_DATA] = {STM_OP_FAST_RD_DATA, 5, 0}, ++ [SPI_PAGE_PROGRAM] = {STM_OP_PAGE_PGRM, 8, 0}, ++ [SPI_SECTOR_ERASE] = {STM_OP_SECTOR_ERASE, 4, 0}, ++ [SPI_BULK_ERASE] = {STM_OP_BULK_ERASE, 1, 0}, ++ [SPI_DEEP_PWRDOWN] = {STM_OP_DEEP_PWRDOWN, 1, 0}, ++ [SPI_RD_SIG] = {STM_OP_RD_SIG, 4, 1}, ++}; ++ ++/* Driver private data structure */ ++struct spiflash_priv { ++ struct mtd_info mtd; ++ void *readaddr; /* memory mapped data for read */ ++ void *mmraddr; /* memory mapped register space */ ++ wait_queue_head_t wq; ++ spinlock_t lock; ++ int state; ++}; ++ ++#define to_spiflash(_mtd) container_of(_mtd, struct spiflash_priv, mtd) ++ ++enum { ++ FL_READY, ++ FL_READING, ++ FL_ERASING, ++ FL_WRITING ++}; ++ ++/***************************************************************************************************/ ++ ++static u32 ++spiflash_read_reg(struct spiflash_priv *priv, int reg) ++{ ++ return ar231x_read_reg((u32) priv->mmraddr + reg); ++} ++ ++static void ++spiflash_write_reg(struct spiflash_priv *priv, int reg, u32 data) ++{ ++ ar231x_write_reg((u32) priv->mmraddr + reg, data); ++} ++ ++static u32 ++spiflash_wait_busy(struct spiflash_priv *priv) ++{ ++ u32 reg; ++ ++ busy_wait(priv, (reg = spiflash_read_reg(priv, SPI_FLASH_CTL)) & ++ SPI_CTL_BUSY, 0); ++ return reg; ++} ++ ++static u32 ++spiflash_sendcmd (struct spiflash_priv *priv, int opcode, u32 addr) ++{ ++ const struct opcodes *op; ++ u32 reg, mask; ++ ++ op = &stm_opcodes[opcode]; ++ reg = spiflash_wait_busy(priv); ++ spiflash_write_reg(priv, SPI_FLASH_OPCODE, ++ ((u32) op->code) | (addr << 8)); ++ ++ reg &= ~SPI_CTL_TX_RX_CNT_MASK; ++ reg |= SPI_CTL_START | op->tx_cnt | (op->rx_cnt << 4); ++ ++ spiflash_write_reg(priv, SPI_FLASH_CTL, reg); ++ spiflash_wait_busy(priv); ++ ++ if (!op->rx_cnt) ++ return 0; ++ ++ reg = spiflash_read_reg(priv, SPI_FLASH_DATA); ++ ++ switch (op->rx_cnt) { ++ case 1: ++ mask = 0x000000ff; ++ break; ++ case 2: ++ mask = 0x0000ffff; ++ break; ++ case 3: ++ mask = 0x00ffffff; ++ break; ++ default: ++ mask = 0xffffffff; ++ break; ++ } ++ reg &= mask; ++ ++ return reg; ++} ++ ++ ++/* ++ * Probe SPI flash device ++ * Function returns 0 for failure. ++ * and flashconfig_tbl array index for success. ++ */ ++static int ++spiflash_probe_chip (struct spiflash_priv *priv) ++{ ++ u32 sig; ++ int flash_size; ++ ++ /* Read the signature on the flash device */ ++ spin_lock_bh(&priv->lock); ++ sig = spiflash_sendcmd(priv, SPI_RD_SIG, 0); ++ spin_unlock_bh(&priv->lock); ++ ++ switch (sig) { ++ case STM_8MBIT_SIGNATURE: ++ flash_size = FLASH_1MB; ++ break; ++ case STM_16MBIT_SIGNATURE: ++ flash_size = FLASH_2MB; ++ break; ++ case STM_32MBIT_SIGNATURE: ++ flash_size = FLASH_4MB; ++ break; ++ case STM_64MBIT_SIGNATURE: ++ flash_size = FLASH_8MB; ++ break; ++ case STM_128MBIT_SIGNATURE: ++ flash_size = FLASH_16MB; ++ break; ++ default: ++ printk (KERN_WARNING SPIFLASH "Read of flash device signature failed!\n"); ++ return 0; ++ } ++ ++ return flash_size; ++} ++ ++ ++/* wait until the flash chip is ready and grab a lock */ ++static int spiflash_wait_ready(struct spiflash_priv *priv, int state) ++{ ++ DECLARE_WAITQUEUE(wait, current); ++ ++retry: ++ spin_lock_bh(&priv->lock); ++ if (priv->state != FL_READY) { ++ set_current_state(TASK_UNINTERRUPTIBLE); ++ add_wait_queue(&priv->wq, &wait); ++ spin_unlock_bh(&priv->lock); ++ schedule(); ++ remove_wait_queue(&priv->wq, &wait); ++ ++ if(signal_pending(current)) ++ return 0; ++ ++ goto retry; ++ } ++ priv->state = state; ++ ++ return 1; ++} ++ ++static inline void spiflash_done(struct spiflash_priv *priv) ++{ ++ priv->state = FL_READY; ++ spin_unlock_bh(&priv->lock); ++ wake_up(&priv->wq); ++} ++ ++static void ++spiflash_wait_complete(struct spiflash_priv *priv, unsigned int timeout) ++{ ++ busy_wait(priv, spiflash_sendcmd(priv, SPI_RD_STATUS, 0) & ++ SPI_STATUS_WIP, timeout); ++ spiflash_done(priv); ++} ++ ++ ++ ++static int ++spiflash_erase (struct mtd_info *mtd, struct erase_info *instr) ++{ ++ struct spiflash_priv *priv = to_spiflash(mtd); ++ const struct opcodes *op; ++ u32 temp, reg; ++ ++ if (instr->addr + instr->len > mtd->size) ++ return -EINVAL; ++ ++ if (!spiflash_wait_ready(priv, FL_ERASING)) ++ return -EINTR; ++ ++ spiflash_sendcmd(priv, SPI_WRITE_ENABLE, 0); ++ reg = spiflash_wait_busy(priv); ++ ++ op = &stm_opcodes[SPI_SECTOR_ERASE]; ++ temp = ((u32)instr->addr << 8) | (u32)(op->code); ++ spiflash_write_reg(priv, SPI_FLASH_OPCODE, temp); ++ ++ reg &= ~SPI_CTL_TX_RX_CNT_MASK; ++ reg |= op->tx_cnt | SPI_CTL_START; ++ spiflash_write_reg(priv, SPI_FLASH_CTL, reg); ++ ++ spiflash_wait_complete(priv, 20); ++ ++ instr->state = MTD_ERASE_DONE; ++ mtd_erase_callback(instr); ++ ++ return 0; ++} ++ ++static int ++spiflash_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) ++{ ++ struct spiflash_priv *priv = to_spiflash(mtd); ++ u8 *read_addr; ++ ++ if (!len) ++ return 0; ++ ++ if (from + len > mtd->size) ++ return -EINVAL; ++ ++ *retlen = len; ++ ++ if (!spiflash_wait_ready(priv, FL_READING)) ++ return -EINTR; ++ ++ read_addr = (u8 *)(priv->readaddr + from); ++ memcpy_fromio(buf, read_addr, len); ++ spiflash_done(priv); ++ ++ return 0; ++} ++ ++static int ++spiflash_write (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u8 *buf) ++{ ++ struct spiflash_priv *priv = to_spiflash(mtd); ++ u32 opcode, bytes_left; ++ ++ *retlen = 0; ++ ++ if (!len) ++ return 0; ++ ++ if (to + len > mtd->size) ++ return -EINVAL; ++ ++ bytes_left = len; ++ ++ do { ++ u32 read_len, reg, page_offset, spi_data = 0; ++ ++ read_len = min(bytes_left, sizeof(u32)); ++ ++ /* 32-bit writes cannot span across a page boundary ++ * (256 bytes). This types of writes require two page ++ * program operations to handle it correctly. The STM part ++ * will write the overflow data to the beginning of the ++ * current page as opposed to the subsequent page. ++ */ ++ page_offset = (to & (STM_PAGE_SIZE - 1)) + read_len; ++ ++ if (page_offset > STM_PAGE_SIZE) ++ read_len -= (page_offset - STM_PAGE_SIZE); ++ ++ if (!spiflash_wait_ready(priv, FL_WRITING)) ++ return -EINTR; ++ ++ spiflash_sendcmd(priv, SPI_WRITE_ENABLE, 0); ++ spi_data = 0; ++ switch (read_len) { ++ case 4: ++ spi_data |= buf[3] << 24; ++ /* fall through */ ++ case 3: ++ spi_data |= buf[2] << 16; ++ /* fall through */ ++ case 2: ++ spi_data |= buf[1] << 8; ++ /* fall through */ ++ case 1: ++ spi_data |= buf[0] & 0xff; ++ break; ++ default: ++ break; ++ } ++ ++ spiflash_write_reg(priv, SPI_FLASH_DATA, spi_data); ++ opcode = stm_opcodes[SPI_PAGE_PROGRAM].code | ++ (to & 0x00ffffff) << 8; ++ spiflash_write_reg(priv, SPI_FLASH_OPCODE, opcode); ++ ++ reg = spiflash_read_reg(priv, SPI_FLASH_CTL); ++ reg &= ~SPI_CTL_TX_RX_CNT_MASK; ++ reg |= (read_len + 4) | SPI_CTL_START; ++ spiflash_write_reg(priv, SPI_FLASH_CTL, reg); ++ ++ spiflash_wait_complete(priv, 1); ++ ++ bytes_left -= read_len; ++ to += read_len; ++ buf += read_len; ++ ++ *retlen += read_len; ++ } while (bytes_left != 0); ++ ++ return 0; ++} ++ ++ ++#ifdef CONFIG_MTD_PARTITIONS ++static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", "MyLoader", NULL }; ++#endif ++ ++ ++static int ++spiflash_probe(struct platform_device *pdev) ++{ ++ struct spiflash_priv *priv; ++ struct mtd_partition *parts; ++ struct mtd_info *mtd; ++ int index, num_parts; ++ int result = 0; ++ ++ priv = kzalloc(sizeof(struct spiflash_priv), GFP_KERNEL); ++ spin_lock_init(&priv->lock); ++ init_waitqueue_head(&priv->wq); ++ priv->state = FL_READY; ++ mtd = &priv->mtd; ++ ++ priv->mmraddr = ioremap_nocache(SPI_FLASH_MMR, SPI_FLASH_MMR_SIZE); ++ if (!priv->mmraddr) { ++ printk(KERN_WARNING SPIFLASH "Failed to map flash device\n"); ++ goto error; ++ } ++ ++ index = spiflash_probe_chip(priv); ++ if (!index) { ++ printk (KERN_WARNING SPIFLASH "Found no serial flash device\n"); ++ goto error; ++ } ++ ++ priv->readaddr = ioremap_nocache(SPI_FLASH_READ, flashconfig_tbl[index].byte_cnt); ++ if (!priv->readaddr) { ++ printk (KERN_WARNING SPIFLASH "Failed to map flash device\n"); ++ goto error; ++ } ++ ++ platform_set_drvdata(pdev, priv); ++ mtd->name = "spiflash"; ++ mtd->type = MTD_NORFLASH; ++ mtd->flags = (MTD_CAP_NORFLASH|MTD_WRITEABLE); ++ mtd->size = flashconfig_tbl[index].byte_cnt; ++ mtd->erasesize = flashconfig_tbl[index].sector_size; ++ mtd->writesize = 1; ++ mtd->numeraseregions = 0; ++ mtd->eraseregions = NULL; ++ mtd->erase = spiflash_erase; ++ mtd->read = spiflash_read; ++ mtd->write = spiflash_write; ++ mtd->owner = THIS_MODULE; ++ ++#ifdef CONFIG_MTD_PARTITIONS ++ /* parse redboot partitions */ ++ num_parts = parse_mtd_partitions(mtd, part_probe_types, &parts, 0); ++ if (!num_parts) ++ goto error; ++ ++ result = add_mtd_partitions(mtd, parts, num_parts); ++#endif ++ ++ return result; ++ ++error: ++ if (priv->mmraddr) ++ iounmap(priv->mmraddr); ++ kfree(priv); ++ return -ENXIO; ++} ++ ++static int ++spiflash_remove (struct platform_device *pdev) ++{ ++ struct spiflash_priv *priv = platform_get_drvdata(pdev); ++ struct mtd_info *mtd = &priv->mtd; ++ ++ del_mtd_partitions(mtd); ++ iounmap(priv->mmraddr); ++ iounmap(priv->readaddr); ++ kfree(priv); ++ ++ return 0; ++} ++ ++struct platform_driver spiflash_driver = { ++ .driver.name = "spiflash", ++ .probe = spiflash_probe, ++ .remove = spiflash_remove, ++}; ++ ++int __init ++spiflash_init (void) ++{ ++ return platform_driver_register(&spiflash_driver); ++} ++ ++void __exit ++spiflash_exit (void) ++{ ++ return platform_driver_unregister(&spiflash_driver); ++} ++ ++module_init (spiflash_init); ++module_exit (spiflash_exit); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("OpenWrt.org, Atheros Communications Inc"); ++MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros SOC"); ++ +diff -Nur linux-2.6.39-rc7.orig/drivers/mtd/redboot.c linux-2.6.39-rc7/drivers/mtd/redboot.c +--- linux-2.6.39-rc7.orig/drivers/mtd/redboot.c 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/drivers/mtd/redboot.c 2011-05-15 21:34:57.000000000 +0200 +@@ -55,6 +55,22 @@ + return 1; + } + ++static uint32_t mtd_get_offset_erasesize(struct mtd_info *mtd, uint64_t offset) ++{ ++ struct mtd_erase_region_info *regions = mtd->eraseregions; ++ int i; ++ ++ for (i = 0; i < mtd->numeraseregions; i++) { ++ if (regions[i].offset + ++ regions[i].numblocks * regions[i].erasesize <= offset) ++ continue; ++ ++ return regions[i].erasesize; ++ } ++ ++ return mtd->erasesize; ++} ++ + static int parse_redboot_partitions(struct mtd_info *master, + struct mtd_partition **pparts, + unsigned long fis_origin) +@@ -70,36 +86,38 @@ + int namelen = 0; + int nulllen = 0; + int numslots; ++ int first_slot; + unsigned long offset; + #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED + static char nullstring[] = "unallocated"; + #endif + ++ buf = vmalloc(master->erasesize); ++ if (!buf) ++ return -ENOMEM; ++ ++ restart: + if ( directory < 0 ) { + offset = master->size + directory * master->erasesize; +- while (master->block_isbad && ++ while (master->block_isbad && + master->block_isbad(master, offset)) { + if (!offset) { + nogood: + printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n"); ++ vfree(buf); + return -EIO; + } + offset -= master->erasesize; + } + } else { + offset = directory * master->erasesize; +- while (master->block_isbad && ++ while (master->block_isbad && + master->block_isbad(master, offset)) { + offset += master->erasesize; + if (offset == master->size) + goto nogood; + } + } +- buf = vmalloc(master->erasesize); +- +- if (!buf) +- return -ENOMEM; +- + printk(KERN_NOTICE "Searching for RedBoot partition table in %s at offset 0x%lx\n", + master->name, offset); + +@@ -171,13 +189,21 @@ + } + if (i == numslots) { + /* Didn't find it */ ++ if (offset + master->erasesize < master->size) { ++ /* not at the end of the flash yet, maybe next block :) */ ++ directory++; ++ goto restart; ++ } + printk(KERN_NOTICE "No RedBoot partition table detected in %s\n", + master->name); + ret = 0; + goto out; + } + +- for (i = 0; i < numslots; i++) { ++ first_slot = (buf[i].flash_base & (master->erasesize - 1)) / ++ sizeof(struct fis_image_desc); ++ ++ for (i = first_slot; i < first_slot + numslots; i++) { + struct fis_list *new_fl, **prev; + + if (buf[i].name[0] == 0xff) { +diff -Nur linux-2.6.39-rc7.orig/drivers/net/Kconfig linux-2.6.39-rc7/drivers/net/Kconfig +--- linux-2.6.39-rc7.orig/drivers/net/Kconfig 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/drivers/net/Kconfig 2011-05-15 21:34:57.000000000 +0200 +@@ -251,6 +251,12 @@ + help + Select this if your platform comes with an external 93CX6 eeprom. + ++config AR231X_ETHERNET ++ tristate "AR231x Ethernet support" ++ depends on ATHEROS_AR231X ++ help ++ Support for the AR231x/531x ethernet controller ++ + config MACE + tristate "MACE (Power Mac ethernet) support" + depends on PPC_PMAC && PPC32 +diff -Nur linux-2.6.39-rc7.orig/drivers/net/Makefile linux-2.6.39-rc7/drivers/net/Makefile +--- linux-2.6.39-rc7.orig/drivers/net/Makefile 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/drivers/net/Makefile 2011-05-15 21:34:57.000000000 +0200 +@@ -226,6 +226,7 @@ + obj-$(CONFIG_KORINA) += korina.o + obj-$(CONFIG_MIPS_JAZZ_SONIC) += jazzsonic.o + obj-$(CONFIG_MIPS_AU1X00_ENET) += au1000_eth.o ++obj-$(CONFIG_AR231X_ETHERNET) += ar231x.o + obj-$(CONFIG_MIPS_SIM_NET) += mipsnet.o + obj-$(CONFIG_SGI_IOC3_ETH) += ioc3-eth.o + obj-$(CONFIG_DECLANCE) += declance.o +diff -Nur linux-2.6.39-rc7.orig/drivers/net/ar231x.c linux-2.6.39-rc7/drivers/net/ar231x.c +--- linux-2.6.39-rc7.orig/drivers/net/ar231x.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/drivers/net/ar231x.c 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,1293 @@ ++/* ++ * ar231x.c: Linux driver for the Atheros AR231x Ethernet device. ++ * ++ * Copyright (C) 2004 by Sameer Dekate <sdekate@arubanetworks.com> ++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org> ++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org> ++ * ++ * Thanks to Atheros for providing hardware and documentation ++ * enabling me to write this driver. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ * ++ * Additional credits: ++ * This code is taken from John Taylor's Sibyte driver and then ++ * modified for the AR2313. ++ */ ++ ++#include <linux/module.h> ++#include <linux/version.h> ++#include <linux/types.h> ++#include <linux/errno.h> ++#include <linux/ioport.h> ++#include <linux/pci.h> ++#include <linux/netdevice.h> ++#include <linux/etherdevice.h> ++#include <linux/skbuff.h> ++#include <linux/init.h> ++#include <linux/delay.h> ++#include <linux/mm.h> ++#include <linux/highmem.h> ++#include <linux/sockios.h> ++#include <linux/pkt_sched.h> ++#include <linux/mii.h> ++#include <linux/phy.h> ++#include <linux/ethtool.h> ++#include <linux/ctype.h> ++#include <linux/platform_device.h> ++ ++#include <net/sock.h> ++#include <net/ip.h> ++ ++#include <asm/system.h> ++#include <asm/io.h> ++#include <asm/irq.h> ++#include <asm/byteorder.h> ++#include <asm/uaccess.h> ++#include <asm/bootinfo.h> ++ ++#define AR2313_MTU 1692 ++#define AR2313_PRIOS 1 ++#define AR2313_QUEUES (2*AR2313_PRIOS) ++#define AR2313_DESCR_ENTRIES 64 ++ ++ ++#ifndef min ++#define min(a,b) (((a)<(b))?(a):(b)) ++#endif ++ ++#ifndef SMP_CACHE_BYTES ++#define SMP_CACHE_BYTES L1_CACHE_BYTES ++#endif ++ ++#define AR2313_MBOX_SET_BIT 0x8 ++ ++#include "ar231x.h" ++ ++/* ++ * New interrupt handler strategy: ++ * ++ * An old interrupt handler worked using the traditional method of ++ * replacing an skbuff with a new one when a packet arrives. However ++ * the rx rings do not need to contain a static number of buffer ++ * descriptors, thus it makes sense to move the memory allocation out ++ * of the main interrupt handler and do it in a bottom half handler ++ * and only allocate new buffers when the number of buffers in the ++ * ring is below a certain threshold. In order to avoid starving the ++ * NIC under heavy load it is however necessary to force allocation ++ * when hitting a minimum threshold. The strategy for alloction is as ++ * follows: ++ * ++ * RX_LOW_BUF_THRES - allocate buffers in the bottom half ++ * RX_PANIC_LOW_THRES - we are very low on buffers, allocate ++ * the buffers in the interrupt handler ++ * RX_RING_THRES - maximum number of buffers in the rx ring ++ * ++ * One advantagous side effect of this allocation approach is that the ++ * entire rx processing can be done without holding any spin lock ++ * since the rx rings and registers are totally independent of the tx ++ * ring and its registers. This of course includes the kmalloc's of ++ * new skb's. Thus start_xmit can run in parallel with rx processing ++ * and the memory allocation on SMP systems. ++ * ++ * Note that running the skb reallocation in a bottom half opens up ++ * another can of races which needs to be handled properly. In ++ * particular it can happen that the interrupt handler tries to run ++ * the reallocation while the bottom half is either running on another ++ * CPU or was interrupted on the same CPU. To get around this the ++ * driver uses bitops to prevent the reallocation routines from being ++ * reentered. ++ * ++ * TX handling can also be done without holding any spin lock, wheee ++ * this is fun! since tx_csm is only written to by the interrupt ++ * handler. ++ */ ++ ++/* ++ * Threshold values for RX buffer allocation - the low water marks for ++ * when to start refilling the rings are set to 75% of the ring ++ * sizes. It seems to make sense to refill the rings entirely from the ++ * intrrupt handler once it gets below the panic threshold, that way ++ * we don't risk that the refilling is moved to another CPU when the ++ * one running the interrupt handler just got the slab code hot in its ++ * cache. ++ */ ++#define RX_RING_SIZE AR2313_DESCR_ENTRIES ++#define RX_PANIC_THRES (RX_RING_SIZE/4) ++#define RX_LOW_THRES ((3*RX_RING_SIZE)/4) ++#define CRC_LEN 4 ++#define RX_OFFSET 2 ++ ++#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) ++#define VLAN_HDR 4 ++#else ++#define VLAN_HDR 0 ++#endif ++ ++#define AR2313_BUFSIZE (AR2313_MTU + VLAN_HDR + ETH_HLEN + CRC_LEN + RX_OFFSET) ++ ++#ifdef MODULE ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Sameer Dekate <sdekate@arubanetworks.com>, Imre Kaloz <kaloz@openwrt.org>, Felix Fietkau <nbd@openwrt.org>"); ++MODULE_DESCRIPTION("AR231x Ethernet driver"); ++#endif ++ ++#define virt_to_phys(x) ((u32)(x) & 0x1fffffff) ++ ++// prototypes ++static void ar231x_halt(struct net_device *dev); ++static void rx_tasklet_func(unsigned long data); ++static void rx_tasklet_cleanup(struct net_device *dev); ++static void ar231x_multicast_list(struct net_device *dev); ++static void ar231x_tx_timeout(struct net_device *dev); ++ ++static int ar231x_mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum); ++static int ar231x_mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum, u16 value); ++static int ar231x_mdiobus_reset(struct mii_bus *bus); ++static int ar231x_mdiobus_probe (struct net_device *dev); ++static void ar231x_adjust_link(struct net_device *dev); ++ ++#ifndef ERR ++#define ERR(fmt, args...) printk("%s: " fmt, __func__, ##args) ++#endif ++ ++#ifdef CONFIG_NET_POLL_CONTROLLER ++static void ++ar231x_netpoll(struct net_device *dev) ++{ ++ unsigned long flags; ++ ++ local_irq_save(flags); ++ ar231x_interrupt(dev->irq, dev); ++ local_irq_restore(flags); ++} ++#endif ++ ++static const struct net_device_ops ar231x_ops = { ++ .ndo_open = ar231x_open, ++ .ndo_stop = ar231x_close, ++ .ndo_start_xmit = ar231x_start_xmit, ++ .ndo_set_multicast_list = ar231x_multicast_list, ++ .ndo_do_ioctl = ar231x_ioctl, ++ .ndo_change_mtu = eth_change_mtu, ++ .ndo_validate_addr = eth_validate_addr, ++ .ndo_set_mac_address = eth_mac_addr, ++ .ndo_tx_timeout = ar231x_tx_timeout, ++#ifdef CONFIG_NET_POLL_CONTROLLER ++ .ndo_poll_controller = ar231x_netpoll, ++#endif ++}; ++ ++int __init ar231x_probe(struct platform_device *pdev) ++{ ++ struct net_device *dev; ++ struct ar231x_private *sp; ++ struct resource *res; ++ unsigned long ar_eth_base; ++ char buf[64]; ++ ++ dev = alloc_etherdev(sizeof(struct ar231x_private)); ++ ++ if (dev == NULL) { ++ printk(KERN_ERR ++ "ar231x: Unable to allocate net_device structure!\n"); ++ return -ENOMEM; ++ } ++ ++ platform_set_drvdata(pdev, dev); ++ ++ sp = netdev_priv(dev); ++ sp->dev = dev; ++ sp->cfg = pdev->dev.platform_data; ++ ++ sprintf(buf, "eth%d_membase", pdev->id); ++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, buf); ++ if (!res) ++ return -ENODEV; ++ ++ sp->link = 0; ++ ar_eth_base = res->start; ++ ++ sprintf(buf, "eth%d_irq", pdev->id); ++ dev->irq = platform_get_irq_byname(pdev, buf); ++ ++ spin_lock_init(&sp->lock); ++ ++ dev->features |= NETIF_F_HIGHDMA; ++ dev->netdev_ops = &ar231x_ops; ++ ++ tasklet_init(&sp->rx_tasklet, rx_tasklet_func, (unsigned long) dev); ++ tasklet_disable(&sp->rx_tasklet); ++ ++ sp->eth_regs = ++ ioremap_nocache(virt_to_phys(ar_eth_base), sizeof(*sp->eth_regs)); ++ if (!sp->eth_regs) { ++ printk("Can't remap eth registers\n"); ++ return (-ENXIO); ++ } ++ ++ /* ++ * When there's only one MAC, PHY regs are typically on ENET0, ++ * even though the MAC might be on ENET1. ++ * Needto remap PHY regs separately in this case ++ */ ++ if (virt_to_phys(ar_eth_base) == virt_to_phys(sp->phy_regs)) ++ sp->phy_regs = sp->eth_regs; ++ else { ++ sp->phy_regs = ++ ioremap_nocache(virt_to_phys(sp->cfg->phy_base), ++ sizeof(*sp->phy_regs)); ++ if (!sp->phy_regs) { ++ printk("Can't remap phy registers\n"); ++ return (-ENXIO); ++ } ++ } ++ ++ sp->dma_regs = ++ ioremap_nocache(virt_to_phys(ar_eth_base + 0x1000), ++ sizeof(*sp->dma_regs)); ++ dev->base_addr = (unsigned int) sp->dma_regs; ++ if (!sp->dma_regs) { ++ printk("Can't remap DMA registers\n"); ++ return (-ENXIO); ++ } ++ ++ sp->int_regs = ioremap_nocache(virt_to_phys(sp->cfg->reset_base), 4); ++ if (!sp->int_regs) { ++ printk("Can't remap INTERRUPT registers\n"); ++ return (-ENXIO); ++ } ++ ++ strncpy(sp->name, "Atheros AR231x", sizeof(sp->name) - 1); ++ sp->name[sizeof(sp->name) - 1] = '\0'; ++ memcpy(dev->dev_addr, sp->cfg->macaddr, 6); ++ ++ if (ar231x_init(dev)) { ++ /* ++ * ar231x_init() calls ar231x_init_cleanup() on error. ++ */ ++ kfree(dev); ++ return -ENODEV; ++ } ++ ++ if (register_netdev(dev)) { ++ printk("%s: register_netdev failed\n", __func__); ++ return -1; ++ } ++ ++ printk("%s: %s: %02x:%02x:%02x:%02x:%02x:%02x, irq %d\n", ++ dev->name, sp->name, ++ dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], ++ dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5], dev->irq); ++ ++ sp->mii_bus = mdiobus_alloc(); ++ if (sp->mii_bus == NULL) ++ return -1; ++ ++ sp->mii_bus->priv = dev; ++ sp->mii_bus->read = ar231x_mdiobus_read; ++ sp->mii_bus->write = ar231x_mdiobus_write; ++ sp->mii_bus->reset = ar231x_mdiobus_reset; ++ sp->mii_bus->name = "ar231x_eth_mii"; ++ snprintf(sp->mii_bus->id, MII_BUS_ID_SIZE, "%d", pdev->id); ++ sp->mii_bus->irq = kmalloc(sizeof(int), GFP_KERNEL); ++ *sp->mii_bus->irq = PHY_POLL; ++ ++ mdiobus_register(sp->mii_bus); ++ ++ if (ar231x_mdiobus_probe(dev) != 0) { ++ printk(KERN_ERR "%s: mdiobus_probe failed\n", dev->name); ++ rx_tasklet_cleanup(dev); ++ ar231x_init_cleanup(dev); ++ unregister_netdev(dev); ++ kfree(dev); ++ return -ENODEV; ++ } ++ ++ /* start link poll timer */ ++ ar231x_setup_timer(dev); ++ ++ return 0; ++} ++ ++ ++static void ar231x_multicast_list(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ unsigned int filter; ++ ++ filter = sp->eth_regs->mac_control; ++ ++ if (dev->flags & IFF_PROMISC) ++ filter |= MAC_CONTROL_PR; ++ else ++ filter &= ~MAC_CONTROL_PR; ++ if ((dev->flags & IFF_ALLMULTI) || (netdev_mc_count(dev) > 0)) ++ filter |= MAC_CONTROL_PM; ++ else ++ filter &= ~MAC_CONTROL_PM; ++ ++ sp->eth_regs->mac_control = filter; ++} ++ ++static void rx_tasklet_cleanup(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ ++ /* ++ * Tasklet may be scheduled. Need to get it removed from the list ++ * since we're about to free the struct. ++ */ ++ ++ sp->unloading = 1; ++ tasklet_enable(&sp->rx_tasklet); ++ tasklet_kill(&sp->rx_tasklet); ++} ++ ++static int __devexit ar231x_remove(struct platform_device *pdev) ++{ ++ struct net_device *dev = platform_get_drvdata(pdev); ++ struct ar231x_private *sp = netdev_priv(dev); ++ rx_tasklet_cleanup(dev); ++ ar231x_init_cleanup(dev); ++ unregister_netdev(dev); ++ mdiobus_unregister(sp->mii_bus); ++ mdiobus_free(sp->mii_bus); ++ kfree(dev); ++ return 0; ++} ++ ++ ++/* ++ * Restart the AR2313 ethernet controller. ++ */ ++static int ar231x_restart(struct net_device *dev) ++{ ++ /* disable interrupts */ ++ disable_irq(dev->irq); ++ ++ /* stop mac */ ++ ar231x_halt(dev); ++ ++ /* initialize */ ++ ar231x_init(dev); ++ ++ /* enable interrupts */ ++ enable_irq(dev->irq); ++ ++ return 0; ++} ++ ++static struct platform_driver ar231x_driver = { ++ .driver.name = "ar231x-eth", ++ .probe = ar231x_probe, ++ .remove = __devexit_p(ar231x_remove), ++}; ++ ++int __init ar231x_module_init(void) ++{ ++ return platform_driver_register(&ar231x_driver); ++} ++ ++void __exit ar231x_module_cleanup(void) ++{ ++ platform_driver_unregister(&ar231x_driver); ++} ++ ++module_init(ar231x_module_init); ++module_exit(ar231x_module_cleanup); ++ ++ ++static void ar231x_free_descriptors(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ if (sp->rx_ring != NULL) { ++ kfree((void *) KSEG0ADDR(sp->rx_ring)); ++ sp->rx_ring = NULL; ++ sp->tx_ring = NULL; ++ } ++} ++ ++ ++static int ar231x_allocate_descriptors(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ int size; ++ int j; ++ ar231x_descr_t *space; ++ ++ if (sp->rx_ring != NULL) { ++ printk("%s: already done.\n", __FUNCTION__); ++ return 0; ++ } ++ ++ size = ++ (sizeof(ar231x_descr_t) * (AR2313_DESCR_ENTRIES * AR2313_QUEUES)); ++ space = kmalloc(size, GFP_KERNEL); ++ if (space == NULL) ++ return 1; ++ ++ /* invalidate caches */ ++ dma_cache_inv((unsigned int) space, size); ++ ++ /* now convert pointer to KSEG1 */ ++ space = (ar231x_descr_t *) KSEG1ADDR(space); ++ ++ memset((void *) space, 0, size); ++ ++ sp->rx_ring = space; ++ space += AR2313_DESCR_ENTRIES; ++ ++ sp->tx_ring = space; ++ space += AR2313_DESCR_ENTRIES; ++ ++ /* Initialize the transmit Descriptors */ ++ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) { ++ ar231x_descr_t *td = &sp->tx_ring[j]; ++ td->status = 0; ++ td->devcs = DMA_TX1_CHAINED; ++ td->addr = 0; ++ td->descr = ++ virt_to_phys(&sp-> ++ tx_ring[(j + 1) & (AR2313_DESCR_ENTRIES - 1)]); ++ } ++ ++ return 0; ++} ++ ++ ++/* ++ * Generic cleanup handling data allocated during init. Used when the ++ * module is unloaded or if an error occurs during initialization ++ */ ++static void ar231x_init_cleanup(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ struct sk_buff *skb; ++ int j; ++ ++ ar231x_free_descriptors(dev); ++ ++ if (sp->eth_regs) ++ iounmap((void *) sp->eth_regs); ++ if (sp->dma_regs) ++ iounmap((void *) sp->dma_regs); ++ ++ if (sp->rx_skb) { ++ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) { ++ skb = sp->rx_skb[j]; ++ if (skb) { ++ sp->rx_skb[j] = NULL; ++ dev_kfree_skb(skb); ++ } ++ } ++ kfree(sp->rx_skb); ++ sp->rx_skb = NULL; ++ } ++ ++ if (sp->tx_skb) { ++ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) { ++ skb = sp->tx_skb[j]; ++ if (skb) { ++ sp->tx_skb[j] = NULL; ++ dev_kfree_skb(skb); ++ } ++ } ++ kfree(sp->tx_skb); ++ sp->tx_skb = NULL; ++ } ++} ++ ++static int ar231x_setup_timer(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ ++ init_timer(&sp->link_timer); ++ ++ sp->link_timer.function = ar231x_link_timer_fn; ++ sp->link_timer.data = (int) dev; ++ sp->link_timer.expires = jiffies + HZ; ++ ++ add_timer(&sp->link_timer); ++ return 0; ++ ++} ++ ++static void ar231x_link_timer_fn(unsigned long data) ++{ ++ struct net_device *dev = (struct net_device *) data; ++ struct ar231x_private *sp = netdev_priv(dev); ++ ++ // see if the link status changed ++ // This was needed to make sure we set the PHY to the ++ // autonegotiated value of half or full duplex. ++ ar231x_check_link(dev); ++ ++ // Loop faster when we don't have link. ++ // This was needed to speed up the AP bootstrap time. ++ if (sp->link == 0) { ++ mod_timer(&sp->link_timer, jiffies + HZ / 2); ++ } else { ++ mod_timer(&sp->link_timer, jiffies + LINK_TIMER); ++ } ++} ++ ++static void ar231x_check_link(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ u16 phyData; ++ ++ phyData = ar231x_mdiobus_read(sp->mii_bus, sp->phy, MII_BMSR); ++ if (sp->phyData != phyData) { ++ if (phyData & BMSR_LSTATUS) { ++ /* link is present, ready link partner ability to deterine ++ duplexity */ ++ int duplex = 0; ++ u16 reg; ++ ++ sp->link = 1; ++ reg = ar231x_mdiobus_read(sp->mii_bus, sp->phy, MII_BMCR); ++ if (reg & BMCR_ANENABLE) { ++ /* auto neg enabled */ ++ reg = ar231x_mdiobus_read(sp->mii_bus, sp->phy, MII_LPA); ++ duplex = (reg & (LPA_100FULL | LPA_10FULL)) ? 1 : 0; ++ } else { ++ /* no auto neg, just read duplex config */ ++ duplex = (reg & BMCR_FULLDPLX) ? 1 : 0; ++ } ++ ++ printk(KERN_INFO "%s: Configuring MAC for %s duplex\n", ++ dev->name, (duplex) ? "full" : "half"); ++ ++ if (duplex) { ++ /* full duplex */ ++ sp->eth_regs->mac_control = ++ ((sp->eth_regs-> ++ mac_control | MAC_CONTROL_F) & ~MAC_CONTROL_DRO); ++ } else { ++ /* half duplex */ ++ sp->eth_regs->mac_control = ++ ((sp->eth_regs-> ++ mac_control | MAC_CONTROL_DRO) & ~MAC_CONTROL_F); ++ } ++ } else { ++ /* no link */ ++ sp->link = 0; ++ } ++ sp->phyData = phyData; ++ } ++} ++ ++static int ar231x_reset_reg(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ unsigned int ethsal, ethsah; ++ unsigned int flags; ++ ++ *sp->int_regs |= sp->cfg->reset_mac; ++ mdelay(10); ++ *sp->int_regs &= ~sp->cfg->reset_mac; ++ mdelay(10); ++ *sp->int_regs |= sp->cfg->reset_phy; ++ mdelay(10); ++ *sp->int_regs &= ~sp->cfg->reset_phy; ++ mdelay(10); ++ ++ sp->dma_regs->bus_mode = (DMA_BUS_MODE_SWR); ++ mdelay(10); ++ sp->dma_regs->bus_mode = ++ ((32 << DMA_BUS_MODE_PBL_SHIFT) | DMA_BUS_MODE_BLE); ++ ++ /* enable interrupts */ ++ sp->dma_regs->intr_ena = (DMA_STATUS_AIS | ++ DMA_STATUS_NIS | ++ DMA_STATUS_RI | ++ DMA_STATUS_TI | DMA_STATUS_FBE); ++ sp->dma_regs->xmt_base = virt_to_phys(sp->tx_ring); ++ sp->dma_regs->rcv_base = virt_to_phys(sp->rx_ring); ++ sp->dma_regs->control = ++ (DMA_CONTROL_SR | DMA_CONTROL_ST | DMA_CONTROL_SF); ++ ++ sp->eth_regs->flow_control = (FLOW_CONTROL_FCE); ++ sp->eth_regs->vlan_tag = (0x8100); ++ ++ /* Enable Ethernet Interface */ ++ flags = (MAC_CONTROL_TE | /* transmit enable */ ++ MAC_CONTROL_PM | /* pass mcast */ ++ MAC_CONTROL_F | /* full duplex */ ++ MAC_CONTROL_HBD); /* heart beat disabled */ ++ ++ if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */ ++ flags |= MAC_CONTROL_PR; ++ } ++ sp->eth_regs->mac_control = flags; ++ ++ /* Set all Ethernet station address registers to their initial values */ ++ ethsah = ((((u_int) (dev->dev_addr[5]) << 8) & (u_int) 0x0000FF00) | ++ (((u_int) (dev->dev_addr[4]) << 0) & (u_int) 0x000000FF)); ++ ++ ethsal = ((((u_int) (dev->dev_addr[3]) << 24) & (u_int) 0xFF000000) | ++ (((u_int) (dev->dev_addr[2]) << 16) & (u_int) 0x00FF0000) | ++ (((u_int) (dev->dev_addr[1]) << 8) & (u_int) 0x0000FF00) | ++ (((u_int) (dev->dev_addr[0]) << 0) & (u_int) 0x000000FF)); ++ ++ sp->eth_regs->mac_addr[0] = ethsah; ++ sp->eth_regs->mac_addr[1] = ethsal; ++ ++ mdelay(10); ++ ++ return (0); ++} ++ ++ ++static int ar231x_init(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ int ecode = 0; ++ ++ /* ++ * Allocate descriptors ++ */ ++ if (ar231x_allocate_descriptors(dev)) { ++ printk("%s: %s: ar231x_allocate_descriptors failed\n", ++ dev->name, __FUNCTION__); ++ ecode = -EAGAIN; ++ goto init_error; ++ } ++ ++ /* ++ * Get the memory for the skb rings. ++ */ ++ if (sp->rx_skb == NULL) { ++ sp->rx_skb = ++ kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES, ++ GFP_KERNEL); ++ if (!(sp->rx_skb)) { ++ printk("%s: %s: rx_skb kmalloc failed\n", ++ dev->name, __FUNCTION__); ++ ecode = -EAGAIN; ++ goto init_error; ++ } ++ } ++ memset(sp->rx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES); ++ ++ if (sp->tx_skb == NULL) { ++ sp->tx_skb = ++ kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES, ++ GFP_KERNEL); ++ if (!(sp->tx_skb)) { ++ printk("%s: %s: tx_skb kmalloc failed\n", ++ dev->name, __FUNCTION__); ++ ecode = -EAGAIN; ++ goto init_error; ++ } ++ } ++ memset(sp->tx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES); ++ ++ /* ++ * Set tx_csm before we start receiving interrupts, otherwise ++ * the interrupt handler might think it is supposed to process ++ * tx ints before we are up and running, which may cause a null ++ * pointer access in the int handler. ++ */ ++ sp->rx_skbprd = 0; ++ sp->cur_rx = 0; ++ sp->tx_prd = 0; ++ sp->tx_csm = 0; ++ ++ /* ++ * Zero the stats before starting the interface ++ */ ++ memset(&dev->stats, 0, sizeof(dev->stats)); ++ ++ /* ++ * We load the ring here as there seem to be no way to tell the ++ * firmware to wipe the ring without re-initializing it. ++ */ ++ ar231x_load_rx_ring(dev, RX_RING_SIZE); ++ ++ /* ++ * Init hardware ++ */ ++ ar231x_reset_reg(dev); ++ ++ /* ++ * Get the IRQ ++ */ ++ ecode = ++ request_irq(dev->irq, &ar231x_interrupt, ++ IRQF_DISABLED | IRQF_SAMPLE_RANDOM, ++ dev->name, dev); ++ if (ecode) { ++ printk(KERN_WARNING "%s: %s: Requested IRQ %d is busy\n", ++ dev->name, __FUNCTION__, dev->irq); ++ goto init_error; ++ } ++ ++ ++ tasklet_enable(&sp->rx_tasklet); ++ ++ return 0; ++ ++ init_error: ++ ar231x_init_cleanup(dev); ++ return ecode; ++} ++ ++/* ++ * Load the rx ring. ++ * ++ * Loading rings is safe without holding the spin lock since this is ++ * done only before the device is enabled, thus no interrupts are ++ * generated and by the interrupt handler/tasklet handler. ++ */ ++static void ar231x_load_rx_ring(struct net_device *dev, int nr_bufs) ++{ ++ ++ struct ar231x_private *sp = netdev_priv(dev); ++ short i, idx; ++ ++ idx = sp->rx_skbprd; ++ ++ for (i = 0; i < nr_bufs; i++) { ++ struct sk_buff *skb; ++ ar231x_descr_t *rd; ++ ++ if (sp->rx_skb[idx]) ++ break; ++ ++ skb = netdev_alloc_skb(dev, AR2313_BUFSIZE); ++ if (!skb) { ++ printk("\n\n\n\n %s: No memory in system\n\n\n\n", ++ __FUNCTION__); ++ break; ++ } ++ ++ /* ++ * Make sure IP header starts on a fresh cache line. ++ */ ++ skb->dev = dev; ++ skb_reserve(skb, RX_OFFSET); ++ sp->rx_skb[idx] = skb; ++ ++ rd = (ar231x_descr_t *) & sp->rx_ring[idx]; ++ ++ /* initialize dma descriptor */ ++ rd->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) | ++ DMA_RX1_CHAINED); ++ rd->addr = virt_to_phys(skb->data); ++ rd->descr = ++ virt_to_phys(&sp-> ++ rx_ring[(idx + 1) & (AR2313_DESCR_ENTRIES - 1)]); ++ rd->status = DMA_RX_OWN; ++ ++ idx = DSC_NEXT(idx); ++ } ++ ++ if (i) ++ sp->rx_skbprd = idx; ++ ++ return; ++} ++ ++#define AR2313_MAX_PKTS_PER_CALL 64 ++ ++static int ar231x_rx_int(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ struct sk_buff *skb, *skb_new; ++ ar231x_descr_t *rxdesc; ++ unsigned int status; ++ u32 idx; ++ int pkts = 0; ++ int rval; ++ ++ idx = sp->cur_rx; ++ ++ /* process at most the entire ring and then wait for another interrupt ++ */ ++ while (1) { ++ ++ rxdesc = &sp->rx_ring[idx]; ++ status = rxdesc->status; ++ if (status & DMA_RX_OWN) { ++ /* SiByte owns descriptor or descr not yet filled in */ ++ rval = 0; ++ break; ++ } ++ ++ if (++pkts > AR2313_MAX_PKTS_PER_CALL) { ++ rval = 1; ++ break; ++ } ++ ++ if ((status & DMA_RX_ERROR) && !(status & DMA_RX_LONG)) { ++ dev->stats.rx_errors++; ++ dev->stats.rx_dropped++; ++ ++ /* add statistics counters */ ++ if (status & DMA_RX_ERR_CRC) ++ dev->stats.rx_crc_errors++; ++ if (status & DMA_RX_ERR_COL) ++ dev->stats.rx_over_errors++; ++ if (status & DMA_RX_ERR_LENGTH) ++ dev->stats.rx_length_errors++; ++ if (status & DMA_RX_ERR_RUNT) ++ dev->stats.rx_over_errors++; ++ if (status & DMA_RX_ERR_DESC) ++ dev->stats.rx_over_errors++; ++ ++ } else { ++ /* alloc new buffer. */ ++ skb_new = netdev_alloc_skb(dev, AR2313_BUFSIZE + RX_OFFSET); ++ if (skb_new != NULL) { ++ ++ skb = sp->rx_skb[idx]; ++ /* set skb */ ++ skb_put(skb, ++ ((status >> DMA_RX_LEN_SHIFT) & 0x3fff) - CRC_LEN); ++ ++ dev->stats.rx_bytes += skb->len; ++ skb->protocol = eth_type_trans(skb, dev); ++ /* pass the packet to upper layers */ ++ netif_rx(skb); ++ ++ skb_new->dev = dev; ++ /* 16 bit align */ ++ skb_reserve(skb_new, RX_OFFSET); ++ /* reset descriptor's curr_addr */ ++ rxdesc->addr = virt_to_phys(skb_new->data); ++ ++ dev->stats.rx_packets++; ++ sp->rx_skb[idx] = skb_new; ++ } else { ++ dev->stats.rx_dropped++; ++ } ++ } ++ ++ rxdesc->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) | ++ DMA_RX1_CHAINED); ++ rxdesc->status = DMA_RX_OWN; ++ ++ idx = DSC_NEXT(idx); ++ } ++ ++ sp->cur_rx = idx; ++ ++ return rval; ++} ++ ++ ++static void ar231x_tx_int(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ u32 idx; ++ struct sk_buff *skb; ++ ar231x_descr_t *txdesc; ++ unsigned int status = 0; ++ ++ idx = sp->tx_csm; ++ ++ while (idx != sp->tx_prd) { ++ txdesc = &sp->tx_ring[idx]; ++ ++ if ((status = txdesc->status) & DMA_TX_OWN) { ++ /* ar231x dma still owns descr */ ++ break; ++ } ++ /* done with this descriptor */ ++ dma_unmap_single(NULL, txdesc->addr, ++ txdesc->devcs & DMA_TX1_BSIZE_MASK, ++ DMA_TO_DEVICE); ++ txdesc->status = 0; ++ ++ if (status & DMA_TX_ERROR) { ++ dev->stats.tx_errors++; ++ dev->stats.tx_dropped++; ++ if (status & DMA_TX_ERR_UNDER) ++ dev->stats.tx_fifo_errors++; ++ if (status & DMA_TX_ERR_HB) ++ dev->stats.tx_heartbeat_errors++; ++ if (status & (DMA_TX_ERR_LOSS | DMA_TX_ERR_LINK)) ++ dev->stats.tx_carrier_errors++; ++ if (status & (DMA_TX_ERR_LATE | ++ DMA_TX_ERR_COL | ++ DMA_TX_ERR_JABBER | DMA_TX_ERR_DEFER)) ++ dev->stats.tx_aborted_errors++; ++ } else { ++ /* transmit OK */ ++ dev->stats.tx_packets++; ++ } ++ ++ skb = sp->tx_skb[idx]; ++ sp->tx_skb[idx] = NULL; ++ idx = DSC_NEXT(idx); ++ dev->stats.tx_bytes += skb->len; ++ dev_kfree_skb_irq(skb); ++ } ++ ++ sp->tx_csm = idx; ++ ++ return; ++} ++ ++ ++static void rx_tasklet_func(unsigned long data) ++{ ++ struct net_device *dev = (struct net_device *) data; ++ struct ar231x_private *sp = netdev_priv(dev); ++ ++ if (sp->unloading) { ++ return; ++ } ++ ++ if (ar231x_rx_int(dev)) { ++ tasklet_hi_schedule(&sp->rx_tasklet); ++ } else { ++ unsigned long flags; ++ spin_lock_irqsave(&sp->lock, flags); ++ sp->dma_regs->intr_ena |= DMA_STATUS_RI; ++ spin_unlock_irqrestore(&sp->lock, flags); ++ } ++} ++ ++static void rx_schedule(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ ++ sp->dma_regs->intr_ena &= ~DMA_STATUS_RI; ++ ++ tasklet_hi_schedule(&sp->rx_tasklet); ++} ++ ++static irqreturn_t ar231x_interrupt(int irq, void *dev_id) ++{ ++ struct net_device *dev = (struct net_device *) dev_id; ++ struct ar231x_private *sp = netdev_priv(dev); ++ unsigned int status, enabled; ++ ++ /* clear interrupt */ ++ /* ++ * Don't clear RI bit if currently disabled. ++ */ ++ status = sp->dma_regs->status; ++ enabled = sp->dma_regs->intr_ena; ++ sp->dma_regs->status = status & enabled; ++ ++ if (status & DMA_STATUS_NIS) { ++ /* normal status */ ++ /* ++ * Don't schedule rx processing if interrupt ++ * is already disabled. ++ */ ++ if (status & enabled & DMA_STATUS_RI) { ++ /* receive interrupt */ ++ rx_schedule(dev); ++ } ++ if (status & DMA_STATUS_TI) { ++ /* transmit interrupt */ ++ ar231x_tx_int(dev); ++ } ++ } ++ ++ /* abnormal status */ ++ if (status & (DMA_STATUS_FBE | DMA_STATUS_TPS)) { ++ ar231x_restart(dev); ++ } ++ return IRQ_HANDLED; ++} ++ ++ ++static int ar231x_open(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ unsigned int ethsal, ethsah; ++ ++ /* reset the hardware, in case the MAC address changed */ ++ ethsah = ((((u_int) (dev->dev_addr[5]) << 8) & (u_int) 0x0000FF00) | ++ (((u_int) (dev->dev_addr[4]) << 0) & (u_int) 0x000000FF)); ++ ++ ethsal = ((((u_int) (dev->dev_addr[3]) << 24) & (u_int) 0xFF000000) | ++ (((u_int) (dev->dev_addr[2]) << 16) & (u_int) 0x00FF0000) | ++ (((u_int) (dev->dev_addr[1]) << 8) & (u_int) 0x0000FF00) | ++ (((u_int) (dev->dev_addr[0]) << 0) & (u_int) 0x000000FF)); ++ ++ sp->eth_regs->mac_addr[0] = ethsah; ++ sp->eth_regs->mac_addr[1] = ethsal; ++ ++ mdelay(10); ++ ++ dev->mtu = 1500; ++ netif_start_queue(dev); ++ ++ sp->eth_regs->mac_control |= MAC_CONTROL_RE; ++ ++ return 0; ++} ++ ++static void ar231x_tx_timeout(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ unsigned long flags; ++ ++ spin_lock_irqsave(&sp->lock, flags); ++ ar231x_restart(dev); ++ spin_unlock_irqrestore(&sp->lock, flags); ++} ++ ++static void ar231x_halt(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ int j; ++ ++ tasklet_disable(&sp->rx_tasklet); ++ ++ /* kill the MAC */ ++ sp->eth_regs->mac_control &= ~(MAC_CONTROL_RE | /* disable Receives */ ++ MAC_CONTROL_TE); /* disable Transmits */ ++ /* stop dma */ ++ sp->dma_regs->control = 0; ++ sp->dma_regs->bus_mode = DMA_BUS_MODE_SWR; ++ ++ /* place phy and MAC in reset */ ++ *sp->int_regs |= (sp->cfg->reset_mac | sp->cfg->reset_phy); ++ ++ /* free buffers on tx ring */ ++ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) { ++ struct sk_buff *skb; ++ ar231x_descr_t *txdesc; ++ ++ txdesc = &sp->tx_ring[j]; ++ txdesc->descr = 0; ++ ++ skb = sp->tx_skb[j]; ++ if (skb) { ++ dev_kfree_skb(skb); ++ sp->tx_skb[j] = NULL; ++ } ++ } ++} ++ ++/* ++ * close should do nothing. Here's why. It's called when ++ * 'ifconfig bond0 down' is run. If it calls free_irq then ++ * the irq is gone forever ! When bond0 is made 'up' again, ++ * the ar231x_open () does not call request_irq (). Worse, ++ * the call to ar231x_halt() generates a WDOG reset due to ++ * the write to 'sp->int_regs' and the box reboots. ++ * Commenting this out is good since it allows the ++ * system to resume when bond0 is made up again. ++ */ ++static int ar231x_close(struct net_device *dev) ++{ ++#if 0 ++ /* ++ * Disable interrupts ++ */ ++ disable_irq(dev->irq); ++ ++ /* ++ * Without (or before) releasing irq and stopping hardware, this ++ * is an absolute non-sense, by the way. It will be reset instantly ++ * by the first irq. ++ */ ++ netif_stop_queue(dev); ++ ++ /* stop the MAC and DMA engines */ ++ ar231x_halt(dev); ++ ++ /* release the interrupt */ ++ free_irq(dev->irq, dev); ++ ++#endif ++ return 0; ++} ++ ++static int ar231x_start_xmit(struct sk_buff *skb, struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ ar231x_descr_t *td; ++ u32 idx; ++ ++ idx = sp->tx_prd; ++ td = &sp->tx_ring[idx]; ++ ++ if (td->status & DMA_TX_OWN) { ++ /* free skbuf and lie to the caller that we sent it out */ ++ dev->stats.tx_dropped++; ++ dev_kfree_skb(skb); ++ ++ /* restart transmitter in case locked */ ++ sp->dma_regs->xmt_poll = 0; ++ return 0; ++ } ++ ++ /* Setup the transmit descriptor. */ ++ td->devcs = ((skb->len << DMA_TX1_BSIZE_SHIFT) | ++ (DMA_TX1_LS | DMA_TX1_IC | DMA_TX1_CHAINED)); ++ td->addr = dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE); ++ td->status = DMA_TX_OWN; ++ ++ /* kick transmitter last */ ++ sp->dma_regs->xmt_poll = 0; ++ ++ sp->tx_skb[idx] = skb; ++ idx = DSC_NEXT(idx); ++ sp->tx_prd = idx; ++ ++ return 0; ++} ++ ++static int ar231x_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) ++{ ++ struct mii_ioctl_data *data = (struct mii_ioctl_data *) &ifr->ifr_data; ++ struct ar231x_private *sp = netdev_priv(dev); ++ int ret; ++ ++ switch (cmd) { ++ ++ case SIOCETHTOOL: ++ spin_lock_irq(&sp->lock); ++ ret = phy_ethtool_ioctl(sp->phy_dev, (void *) ifr->ifr_data); ++ spin_unlock_irq(&sp->lock); ++ return ret; ++ ++ case SIOCSIFHWADDR: ++ if (copy_from_user ++ (dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr))) ++ return -EFAULT; ++ return 0; ++ ++ case SIOCGIFHWADDR: ++ if (copy_to_user ++ (ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr))) ++ return -EFAULT; ++ return 0; ++ ++ case SIOCGMIIPHY: ++ case SIOCGMIIREG: ++ case SIOCSMIIREG: ++ return phy_mii_ioctl(sp->phy_dev, data, cmd); ++ ++ default: ++ break; ++ } ++ ++ return -EOPNOTSUPP; ++} ++ ++static void ar231x_adjust_link(struct net_device *dev) ++{ ++ struct ar231x_private *sp = netdev_priv(dev); ++ unsigned int mc; ++ ++ if (!sp->phy_dev->link) ++ return; ++ ++ if (sp->phy_dev->duplex != sp->oldduplex) { ++ mc = readl(&sp->eth_regs->mac_control); ++ mc &= ~(MAC_CONTROL_F | MAC_CONTROL_DRO); ++ if (sp->phy_dev->duplex) ++ mc |= MAC_CONTROL_F; ++ else ++ mc |= MAC_CONTROL_DRO; ++ writel(mc, &sp->eth_regs->mac_control); ++ sp->oldduplex = sp->phy_dev->duplex; ++ } ++} ++ ++#define MII_ADDR(phy, reg) \ ++ ((reg << MII_ADDR_REG_SHIFT) | (phy << MII_ADDR_PHY_SHIFT)) ++ ++static int ++ar231x_mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum) ++{ ++ struct net_device *const dev = bus->priv; ++ struct ar231x_private *sp = netdev_priv(dev); ++ volatile ETHERNET_STRUCT *ethernet = sp->phy_regs; ++ ++ ethernet->mii_addr = MII_ADDR(phy_addr, regnum); ++ while (ethernet->mii_addr & MII_ADDR_BUSY); ++ return (ethernet->mii_data >> MII_DATA_SHIFT); ++} ++ ++static int ++ar231x_mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum, ++ u16 value) ++{ ++ struct net_device *const dev = bus->priv; ++ struct ar231x_private *sp = netdev_priv(dev); ++ volatile ETHERNET_STRUCT *ethernet = sp->phy_regs; ++ ++ while (ethernet->mii_addr & MII_ADDR_BUSY); ++ ethernet->mii_data = value << MII_DATA_SHIFT; ++ ethernet->mii_addr = MII_ADDR(phy_addr, regnum) | MII_ADDR_WRITE; ++ ++ return 0; ++} ++ ++static int ar231x_mdiobus_reset(struct mii_bus *bus) ++{ ++ struct net_device *const dev = bus->priv; ++ ++ ar231x_reset_reg(dev); ++ ++ return 0; ++} ++ ++static int ar231x_mdiobus_probe (struct net_device *dev) ++{ ++ struct ar231x_private *const sp = netdev_priv(dev); ++ struct phy_device *phydev = NULL; ++ int phy_addr; ++ ++ /* find the first (lowest address) PHY on the current MAC's MII bus */ ++ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) ++ if (sp->mii_bus->phy_map[phy_addr]) { ++ phydev = sp->mii_bus->phy_map[phy_addr]; ++ sp->phy = phy_addr; ++ break; /* break out with first one found */ ++ } ++ ++ if (!phydev) { ++ printk (KERN_ERR "ar231x: %s: no PHY found\n", dev->name); ++ return -1; ++ } ++ ++ /* now we are supposed to have a proper phydev, to attach to... */ ++ BUG_ON(!phydev); ++ BUG_ON(phydev->attached_dev); ++ ++ phydev = phy_connect(dev, dev_name(&phydev->dev), &ar231x_adjust_link, 0, ++ PHY_INTERFACE_MODE_MII); ++ ++ if (IS_ERR(phydev)) { ++ printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); ++ return PTR_ERR(phydev); ++ } ++ ++ /* mask with MAC supported features */ ++ phydev->supported &= (SUPPORTED_10baseT_Half ++ | SUPPORTED_10baseT_Full ++ | SUPPORTED_100baseT_Half ++ | SUPPORTED_100baseT_Full ++ | SUPPORTED_Autoneg ++ /* | SUPPORTED_Pause | SUPPORTED_Asym_Pause */ ++ | SUPPORTED_MII ++ | SUPPORTED_TP); ++ ++ phydev->advertising = phydev->supported; ++ ++ sp->oldduplex = -1; ++ sp->phy_dev = phydev; ++ ++ printk(KERN_INFO "%s: attached PHY driver [%s] " ++ "(mii_bus:phy_addr=%s)\n", ++ dev->name, phydev->drv->name, dev_name(&phydev->dev)); ++ ++ return 0; ++} ++ +diff -Nur linux-2.6.39-rc7.orig/drivers/net/ar231x.h linux-2.6.39-rc7/drivers/net/ar231x.h +--- linux-2.6.39-rc7.orig/drivers/net/ar231x.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/drivers/net/ar231x.h 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,302 @@ ++/* ++ * ar231x.h: Linux driver for the Atheros AR231x Ethernet device. ++ * ++ * Copyright (C) 2004 by Sameer Dekate <sdekate@arubanetworks.com> ++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org> ++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org> ++ * ++ * Thanks to Atheros for providing hardware and documentation ++ * enabling me to write this driver. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ */ ++ ++#ifndef _AR2313_H_ ++#define _AR2313_H_ ++ ++#include <generated/autoconf.h> ++#include <linux/bitops.h> ++#include <asm/bootinfo.h> ++#include <ar231x_platform.h> ++ ++/* ++ * probe link timer - 5 secs ++ */ ++#define LINK_TIMER (5*HZ) ++ ++#define IS_DMA_TX_INT(X) (((X) & (DMA_STATUS_TI)) != 0) ++#define IS_DMA_RX_INT(X) (((X) & (DMA_STATUS_RI)) != 0) ++#define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN)) == 0) ++ ++#define AR2313_TX_TIMEOUT (HZ/4) ++ ++/* ++ * Rings ++ */ ++#define DSC_RING_ENTRIES_SIZE (AR2313_DESCR_ENTRIES * sizeof(struct desc)) ++#define DSC_NEXT(idx) ((idx + 1) & (AR2313_DESCR_ENTRIES - 1)) ++ ++#define AR2313_MBGET 2 ++#define AR2313_MBSET 3 ++#define AR2313_PCI_RECONFIG 4 ++#define AR2313_PCI_DUMP 5 ++#define AR2313_TEST_PANIC 6 ++#define AR2313_TEST_NULLPTR 7 ++#define AR2313_READ_DATA 8 ++#define AR2313_WRITE_DATA 9 ++#define AR2313_GET_VERSION 10 ++#define AR2313_TEST_HANG 11 ++#define AR2313_SYNC 12 ++ ++#define DMA_RX_ERR_CRC BIT(1) ++#define DMA_RX_ERR_DRIB BIT(2) ++#define DMA_RX_ERR_MII BIT(3) ++#define DMA_RX_EV2 BIT(5) ++#define DMA_RX_ERR_COL BIT(6) ++#define DMA_RX_LONG BIT(7) ++#define DMA_RX_LS BIT(8) /* last descriptor */ ++#define DMA_RX_FS BIT(9) /* first descriptor */ ++#define DMA_RX_MF BIT(10) /* multicast frame */ ++#define DMA_RX_ERR_RUNT BIT(11) /* runt frame */ ++#define DMA_RX_ERR_LENGTH BIT(12) /* length error */ ++#define DMA_RX_ERR_DESC BIT(14) /* descriptor error */ ++#define DMA_RX_ERROR BIT(15) /* error summary */ ++#define DMA_RX_LEN_MASK 0x3fff0000 ++#define DMA_RX_LEN_SHIFT 16 ++#define DMA_RX_FILT BIT(30) ++#define DMA_RX_OWN BIT(31) /* desc owned by DMA controller */ ++ ++#define DMA_RX1_BSIZE_MASK 0x000007ff ++#define DMA_RX1_BSIZE_SHIFT 0 ++#define DMA_RX1_CHAINED BIT(24) ++#define DMA_RX1_RER BIT(25) ++ ++#define DMA_TX_ERR_UNDER BIT(1) /* underflow error */ ++#define DMA_TX_ERR_DEFER BIT(2) /* excessive deferral */ ++#define DMA_TX_COL_MASK 0x78 ++#define DMA_TX_COL_SHIFT 3 ++#define DMA_TX_ERR_HB BIT(7) /* hearbeat failure */ ++#define DMA_TX_ERR_COL BIT(8) /* excessive collisions */ ++#define DMA_TX_ERR_LATE BIT(9) /* late collision */ ++#define DMA_TX_ERR_LINK BIT(10) /* no carrier */ ++#define DMA_TX_ERR_LOSS BIT(11) /* loss of carrier */ ++#define DMA_TX_ERR_JABBER BIT(14) /* transmit jabber timeout */ ++#define DMA_TX_ERROR BIT(15) /* frame aborted */ ++#define DMA_TX_OWN BIT(31) /* descr owned by DMA controller */ ++ ++#define DMA_TX1_BSIZE_MASK 0x000007ff ++#define DMA_TX1_BSIZE_SHIFT 0 ++#define DMA_TX1_CHAINED BIT(24) /* chained descriptors */ ++#define DMA_TX1_TER BIT(25) /* transmit end of ring */ ++#define DMA_TX1_FS BIT(29) /* first segment */ ++#define DMA_TX1_LS BIT(30) /* last segment */ ++#define DMA_TX1_IC BIT(31) /* interrupt on completion */ ++ ++#define RCVPKT_LENGTH(X) (X >> 16) /* Received pkt Length */ ++ ++#define MAC_CONTROL_RE BIT(2) /* receive enable */ ++#define MAC_CONTROL_TE BIT(3) /* transmit enable */ ++#define MAC_CONTROL_DC BIT(5) /* Deferral check */ ++#define MAC_CONTROL_ASTP BIT(8) /* Auto pad strip */ ++#define MAC_CONTROL_DRTY BIT(10) /* Disable retry */ ++#define MAC_CONTROL_DBF BIT(11) /* Disable bcast frames */ ++#define MAC_CONTROL_LCC BIT(12) /* late collision ctrl */ ++#define MAC_CONTROL_HP BIT(13) /* Hash Perfect filtering */ ++#define MAC_CONTROL_HASH BIT(14) /* Unicast hash filtering */ ++#define MAC_CONTROL_HO BIT(15) /* Hash only filtering */ ++#define MAC_CONTROL_PB BIT(16) /* Pass Bad frames */ ++#define MAC_CONTROL_IF BIT(17) /* Inverse filtering */ ++#define MAC_CONTROL_PR BIT(18) /* promiscuous mode (valid frames only) */ ++#define MAC_CONTROL_PM BIT(19) /* pass multicast */ ++#define MAC_CONTROL_F BIT(20) /* full-duplex */ ++#define MAC_CONTROL_DRO BIT(23) /* Disable Receive Own */ ++#define MAC_CONTROL_HBD BIT(28) /* heart-beat disabled (MUST BE SET) */ ++#define MAC_CONTROL_BLE BIT(30) /* big endian mode */ ++#define MAC_CONTROL_RA BIT(31) /* receive all (valid and invalid frames) */ ++ ++#define MII_ADDR_BUSY BIT(0) ++#define MII_ADDR_WRITE BIT(1) ++#define MII_ADDR_REG_SHIFT 6 ++#define MII_ADDR_PHY_SHIFT 11 ++#define MII_DATA_SHIFT 0 ++ ++#define FLOW_CONTROL_FCE BIT(1) ++ ++#define DMA_BUS_MODE_SWR BIT(0) /* software reset */ ++#define DMA_BUS_MODE_BLE BIT(7) /* big endian mode */ ++#define DMA_BUS_MODE_PBL_SHIFT 8 /* programmable burst length 32 */ ++#define DMA_BUS_MODE_DBO BIT(20) /* big-endian descriptors */ ++ ++#define DMA_STATUS_TI BIT(0) /* transmit interrupt */ ++#define DMA_STATUS_TPS BIT(1) /* transmit process stopped */ ++#define DMA_STATUS_TU BIT(2) /* transmit buffer unavailable */ ++#define DMA_STATUS_TJT BIT(3) /* transmit buffer timeout */ ++#define DMA_STATUS_UNF BIT(5) /* transmit underflow */ ++#define DMA_STATUS_RI BIT(6) /* receive interrupt */ ++#define DMA_STATUS_RU BIT(7) /* receive buffer unavailable */ ++#define DMA_STATUS_RPS BIT(8) /* receive process stopped */ ++#define DMA_STATUS_ETI BIT(10) /* early transmit interrupt */ ++#define DMA_STATUS_FBE BIT(13) /* fatal bus interrupt */ ++#define DMA_STATUS_ERI BIT(14) /* early receive interrupt */ ++#define DMA_STATUS_AIS BIT(15) /* abnormal interrupt summary */ ++#define DMA_STATUS_NIS BIT(16) /* normal interrupt summary */ ++#define DMA_STATUS_RS_SHIFT 17 /* receive process state */ ++#define DMA_STATUS_TS_SHIFT 20 /* transmit process state */ ++#define DMA_STATUS_EB_SHIFT 23 /* error bits */ ++ ++#define DMA_CONTROL_SR BIT(1) /* start receive */ ++#define DMA_CONTROL_ST BIT(13) /* start transmit */ ++#define DMA_CONTROL_SF BIT(21) /* store and forward */ ++ ++ ++typedef struct { ++ volatile unsigned int status; // OWN, Device control and status. ++ volatile unsigned int devcs; // pkt Control bits + Length ++ volatile unsigned int addr; // Current Address. ++ volatile unsigned int descr; // Next descriptor in chain. ++} ar231x_descr_t; ++ ++ ++ ++// ++// New Combo structure for Both Eth0 AND eth1 ++// ++typedef struct { ++ volatile unsigned int mac_control; /* 0x00 */ ++ volatile unsigned int mac_addr[2]; /* 0x04 - 0x08 */ ++ volatile unsigned int mcast_table[2]; /* 0x0c - 0x10 */ ++ volatile unsigned int mii_addr; /* 0x14 */ ++ volatile unsigned int mii_data; /* 0x18 */ ++ volatile unsigned int flow_control; /* 0x1c */ ++ volatile unsigned int vlan_tag; /* 0x20 */ ++ volatile unsigned int pad[7]; /* 0x24 - 0x3c */ ++ volatile unsigned int ucast_table[8]; /* 0x40-0x5c */ ++ ++} ETHERNET_STRUCT; ++ ++/******************************************************************** ++ * Interrupt controller ++ ********************************************************************/ ++ ++typedef struct { ++ volatile unsigned int wdog_control; /* 0x08 */ ++ volatile unsigned int wdog_timer; /* 0x0c */ ++ volatile unsigned int misc_status; /* 0x10 */ ++ volatile unsigned int misc_mask; /* 0x14 */ ++ volatile unsigned int global_status; /* 0x18 */ ++ volatile unsigned int reserved; /* 0x1c */ ++ volatile unsigned int reset_control; /* 0x20 */ ++} INTERRUPT; ++ ++/******************************************************************** ++ * DMA controller ++ ********************************************************************/ ++typedef struct { ++ volatile unsigned int bus_mode; /* 0x00 (CSR0) */ ++ volatile unsigned int xmt_poll; /* 0x04 (CSR1) */ ++ volatile unsigned int rcv_poll; /* 0x08 (CSR2) */ ++ volatile unsigned int rcv_base; /* 0x0c (CSR3) */ ++ volatile unsigned int xmt_base; /* 0x10 (CSR4) */ ++ volatile unsigned int status; /* 0x14 (CSR5) */ ++ volatile unsigned int control; /* 0x18 (CSR6) */ ++ volatile unsigned int intr_ena; /* 0x1c (CSR7) */ ++ volatile unsigned int rcv_missed; /* 0x20 (CSR8) */ ++ volatile unsigned int reserved[11]; /* 0x24-0x4c (CSR9-19) */ ++ volatile unsigned int cur_tx_buf_addr; /* 0x50 (CSR20) */ ++ volatile unsigned int cur_rx_buf_addr; /* 0x50 (CSR21) */ ++} DMA; ++ ++/* ++ * Struct private for the Sibyte. ++ * ++ * Elements are grouped so variables used by the tx handling goes ++ * together, and will go into the same cache lines etc. in order to ++ * avoid cache line contention between the rx and tx handling on SMP. ++ * ++ * Frequently accessed variables are put at the beginning of the ++ * struct to help the compiler generate better/shorter code. ++ */ ++struct ar231x_private { ++ struct net_device *dev; ++ int version; ++ u32 mb[2]; ++ ++ volatile ETHERNET_STRUCT *phy_regs; ++ volatile ETHERNET_STRUCT *eth_regs; ++ volatile DMA *dma_regs; ++ volatile u32 *int_regs; ++ struct ar231x_eth *cfg; ++ ++ spinlock_t lock; /* Serialise access to device */ ++ ++ /* ++ * RX and TX descriptors, must be adjacent ++ */ ++ ar231x_descr_t *rx_ring; ++ ar231x_descr_t *tx_ring; ++ ++ ++ struct sk_buff **rx_skb; ++ struct sk_buff **tx_skb; ++ ++ /* ++ * RX elements ++ */ ++ u32 rx_skbprd; ++ u32 cur_rx; ++ ++ /* ++ * TX elements ++ */ ++ u32 tx_prd; ++ u32 tx_csm; ++ ++ /* ++ * Misc elements ++ */ ++ char name[48]; ++ struct { ++ u32 address; ++ u32 length; ++ char *mapping; ++ } desc; ++ ++ ++ struct timer_list link_timer; ++ unsigned short phy; /* merlot phy = 1, samsung phy = 0x1f */ ++ unsigned short mac; ++ unsigned short link; /* 0 - link down, 1 - link up */ ++ u16 phyData; ++ ++ struct tasklet_struct rx_tasklet; ++ int unloading; ++ ++ struct phy_device *phy_dev; ++ struct mii_bus *mii_bus; ++ int oldduplex; ++}; ++ ++ ++/* ++ * Prototypes ++ */ ++static int ar231x_init(struct net_device *dev); ++#ifdef TX_TIMEOUT ++static void ar231x_tx_timeout(struct net_device *dev); ++#endif ++static int ar231x_restart(struct net_device *dev); ++static void ar231x_load_rx_ring(struct net_device *dev, int bufs); ++static irqreturn_t ar231x_interrupt(int irq, void *dev_id); ++static int ar231x_open(struct net_device *dev); ++static int ar231x_start_xmit(struct sk_buff *skb, struct net_device *dev); ++static int ar231x_close(struct net_device *dev); ++static int ar231x_ioctl(struct net_device *dev, struct ifreq *ifr, ++ int cmd); ++static void ar231x_init_cleanup(struct net_device *dev); ++static int ar231x_setup_timer(struct net_device *dev); ++static void ar231x_link_timer_fn(unsigned long data); ++static void ar231x_check_link(struct net_device *dev); ++#endif /* _AR2313_H_ */ +diff -Nur linux-2.6.39-rc7.orig/drivers/watchdog/Kconfig linux-2.6.39-rc7/drivers/watchdog/Kconfig +--- linux-2.6.39-rc7.orig/drivers/watchdog/Kconfig 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/drivers/watchdog/Kconfig 2011-05-15 21:34:57.000000000 +0200 +@@ -990,6 +990,12 @@ + To compile this driver as a loadable module, choose M here. + The module will be called bcm63xx_wdt. + ++config ATHEROS_WDT ++ tristate "Atheros wisoc Watchdog Timer" ++ depends on ATHEROS_AR231X ++ help ++ Hardware driver for the Atheros wisoc Watchdog Timer. ++ + # PARISC Architecture + + # POWERPC Architecture +diff -Nur linux-2.6.39-rc7.orig/drivers/watchdog/Makefile linux-2.6.39-rc7/drivers/watchdog/Makefile +--- linux-2.6.39-rc7.orig/drivers/watchdog/Makefile 2011-05-10 04:33:54.000000000 +0200 ++++ linux-2.6.39-rc7/drivers/watchdog/Makefile 2011-05-15 21:34:57.000000000 +0200 +@@ -120,6 +120,7 @@ + obj-$(CONFIG_PNX833X_WDT) += pnx833x_wdt.o + obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o + obj-$(CONFIG_AR7_WDT) += ar7_wdt.o ++obj-$(CONFIG_ATHEROS_WDT) += ar2315-wtd.o + obj-$(CONFIG_TXX9_WDT) += txx9wdt.o + obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o + octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o +diff -Nur linux-2.6.39-rc7.orig/drivers/watchdog/ar2315-wtd.c linux-2.6.39-rc7/drivers/watchdog/ar2315-wtd.c +--- linux-2.6.39-rc7.orig/drivers/watchdog/ar2315-wtd.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.39-rc7/drivers/watchdog/ar2315-wtd.c 2011-05-15 21:34:57.000000000 +0200 +@@ -0,0 +1,200 @@ ++/* ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ++ * ++ * Copyright (C) 2008 John Crispin <blogic@openwrt.org> ++ * Based on EP93xx and ifxmips wdt driver ++ */ ++ ++#include <linux/interrupt.h> ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/types.h> ++#include <linux/miscdevice.h> ++#include <linux/watchdog.h> ++#include <linux/fs.h> ++#include <linux/ioport.h> ++#include <linux/notifier.h> ++#include <linux/reboot.h> ++#include <linux/init.h> ++#include <linux/platform_device.h> ++ ++#include <asm/io.h> ++#include <asm/uaccess.h> ++#include <asm/system.h> ++#include <asm/addrspace.h> ++#include <ar231x_platform.h> ++#include <ar2315_regs.h> ++#include <ar231x.h> ++ ++#define CLOCK_RATE 40000000 ++#define HEARTBEAT(x) (x < 1 || x > 90)?(20):(x) ++ ++static int wdt_timeout = 20; ++static int started = 0; ++static int in_use = 0; ++ ++static void ++ar2315_wdt_enable(void) ++{ ++ ar231x_write_reg(AR2315_WD, wdt_timeout * CLOCK_RATE); ++ ar231x_write_reg(AR2315_ISR, 0x80); ++} ++ ++static ssize_t ++ar2315_wdt_write(struct file *file, const char __user *data, size_t len, loff_t *ppos) ++{ ++ if(len) ++ ar2315_wdt_enable(); ++ return len; ++} ++ ++static int ++ar2315_wdt_open(struct inode *inode, struct file *file) ++{ ++ if(in_use) ++ return -EBUSY; ++ ar2315_wdt_enable(); ++ in_use = started = 1; ++ return nonseekable_open(inode, file); ++} ++ ++static int ++ar2315_wdt_release(struct inode *inode, struct file *file) ++{ ++ in_use = 0; ++ return 0; ++} ++ ++static irqreturn_t ++ar2315_wdt_interrupt(int irq, void *dev_id) ++{ ++ if(started) ++ { ++ printk(KERN_CRIT "watchdog expired, rebooting system\n"); ++ emergency_restart(); ++ } else { ++ ar231x_write_reg(AR2315_WDC, 0); ++ ar231x_write_reg(AR2315_WD, 0); ++ ar231x_write_reg(AR2315_ISR, 0x80); ++ } ++ return IRQ_HANDLED; ++} ++ ++static struct watchdog_info ident = { ++ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, ++ .identity = "ar2315 Watchdog", ++}; ++ ++static int ++ar2315_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) ++{ ++ int new_wdt_timeout; ++ int ret = -ENOIOCTLCMD; ++ ++ switch(cmd) ++ { ++ case WDIOC_GETSUPPORT: ++ ret = copy_to_user((struct watchdog_info __user *)arg, &ident, sizeof(ident)) ? -EFAULT : 0; ++ break; ++ ++ case WDIOC_KEEPALIVE: ++ ar2315_wdt_enable(); ++ ret = 0; ++ break; ++ ++ case WDIOC_SETTIMEOUT: ++ if((ret = get_user(new_wdt_timeout, (int __user *)arg))) ++ break; ++ wdt_timeout = HEARTBEAT(new_wdt_timeout); ++ ar2315_wdt_enable(); ++ break; ++ ++ case WDIOC_GETTIMEOUT: ++ ret = put_user(wdt_timeout, (int __user *)arg); ++ break; ++ } ++ return ret; ++} ++ ++static struct file_operations ar2315_wdt_fops = { ++ .owner = THIS_MODULE, ++ .llseek = no_llseek, ++ .write = ar2315_wdt_write, ++ .unlocked_ioctl = ar2315_wdt_ioctl, ++ .open = ar2315_wdt_open, ++ .release = ar2315_wdt_release, ++}; ++ ++static struct miscdevice ar2315_wdt_miscdev = { ++ .minor = WATCHDOG_MINOR, ++ .name = "watchdog", ++ .fops = &ar2315_wdt_fops, ++}; ++ ++static int ++ar2315_wdt_probe(struct platform_device *dev) ++{ ++ int ret = 0; ++ ++ ar2315_wdt_enable(); ++ ret = request_irq(AR531X_MISC_IRQ_WATCHDOG, ar2315_wdt_interrupt, IRQF_DISABLED, "ar2315_wdt", NULL); ++ if(ret) ++ { ++ printk(KERN_ERR "ar2315wdt: failed to register inetrrupt\n"); ++ goto out; ++ } ++ ++ ret = misc_register(&ar2315_wdt_miscdev); ++ if(ret) ++ printk(KERN_ERR "ar2315wdt: failed to register miscdev\n"); ++ ++out: ++ return ret; ++} ++ ++static int ++ar2315_wdt_remove(struct platform_device *dev) ++{ ++ misc_deregister(&ar2315_wdt_miscdev); ++ free_irq(AR531X_MISC_IRQ_WATCHDOG, NULL); ++ return 0; ++} ++ ++static struct platform_driver ar2315_wdt_driver = { ++ .probe = ar2315_wdt_probe, ++ .remove = ar2315_wdt_remove, ++ .driver = { ++ .name = "ar2315_wdt", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init ++init_ar2315_wdt(void) ++{ ++ int ret = platform_driver_register(&ar2315_wdt_driver); ++ if(ret) ++ printk(KERN_INFO "ar2315_wdt: error registering platfom driver!"); ++ return ret; ++} ++ ++static void __exit ++exit_ar2315_wdt(void) ++{ ++ platform_driver_unregister(&ar2315_wdt_driver); ++} ++ ++module_init(init_ar2315_wdt); ++module_exit(exit_ar2315_wdt); |