diff options
Diffstat (limited to 'arch/arm/mach-ixp4xx/nslu2-setup.c')
| -rw-r--r-- | arch/arm/mach-ixp4xx/nslu2-setup.c | 137 |
1 files changed, 112 insertions, 25 deletions
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c index 77277d27fcc..acaebcbce53 100644 --- a/arch/arm/mach-ixp4xx/nslu2-setup.c +++ b/arch/arm/mach-ixp4xx/nslu2-setup.c @@ -3,27 +3,35 @@ * * NSLU2 board-setup * - * based ixdp425-setup.c: + * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au> + * + * based on ixdp425-setup.c: * Copyright (C) 2003-2004 MontaVista Software, Inc. + * based on nslu2-power.c: + * Copyright (C) 2005 Tower Technologies * * Author: Mark Rakes <mrakes at mac.com> * Author: Rod Whitby <rod@whitby.id.au> + * Author: Alessandro Zummo <a.zummo@towertech.it> * Maintainers: http://www.nslu2-linux.org/ * - * Fixed missing init_time in MACHINE_START kas11 10/22/04 - * Changed to conform to new style __init ixdp425 kas11 10/22/04 */ -#include <linux/kernel.h> +#include <linux/if_ether.h> +#include <linux/irq.h> #include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/leds.h> +#include <linux/reboot.h> +#include <linux/i2c.h> #include <linux/i2c-gpio.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/flash.h> #include <asm/mach/time.h> +#include <asm/io.h> +#include <asm/gpio.h> static struct flash_platform_data nslu2_flash_data = { .map_name = "cfi_probe", @@ -47,41 +55,43 @@ static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = { .scl_pin = NSLU2_SCL_PIN, }; -#ifdef CONFIG_LEDS_IXP4XX -static struct resource nslu2_led_resources[] = { +static struct i2c_board_info __initdata nslu2_i2c_board_info [] = { + { + I2C_BOARD_INFO("rtc-x1205", 0x6f), + }, +}; + +static struct gpio_led nslu2_led_pins[] = { { .name = "ready", /* green led */ - .start = NSLU2_LED_GRN_GPIO, - .end = NSLU2_LED_GRN_GPIO, - .flags = IXP4XX_GPIO_HIGH, + .gpio = NSLU2_LED_GRN_GPIO, }, { .name = "status", /* red led */ - .start = NSLU2_LED_RED_GPIO, - .end = NSLU2_LED_RED_GPIO, - .flags = IXP4XX_GPIO_HIGH, + .gpio = NSLU2_LED_RED_GPIO, }, { .name = "disk-1", - .start = NSLU2_LED_DISK1_GPIO, - .end = NSLU2_LED_DISK1_GPIO, - .flags = IXP4XX_GPIO_LOW, + .gpio = NSLU2_LED_DISK1_GPIO, + .active_low = true, }, { .name = "disk-2", - .start = NSLU2_LED_DISK2_GPIO, - .end = NSLU2_LED_DISK2_GPIO, - .flags = IXP4XX_GPIO_LOW, + .gpio = NSLU2_LED_DISK2_GPIO, + .active_low = true, }, }; +static struct gpio_led_platform_data nslu2_led_data = { + .num_leds = ARRAY_SIZE(nslu2_led_pins), + .leds = nslu2_led_pins, +}; + static struct platform_device nslu2_leds = { - .name = "IXP4XX-GPIO-LED", + .name = "leds-gpio", .id = -1, - .num_resources = ARRAY_SIZE(nslu2_led_resources), - .resource = nslu2_led_resources, + .dev.platform_data = &nslu2_led_data, }; -#endif static struct platform_device nslu2_i2c_gpio = { .name = "i2c-gpio", @@ -140,13 +150,29 @@ static struct platform_device nslu2_uart = { .resource = nslu2_uart_resources, }; +/* Built-in 10/100 Ethernet MAC interfaces */ +static struct eth_plat_info nslu2_plat_eth[] = { + { + .phy = 1, + .rxq = 3, + .txreadyq = 20, + } +}; + +static struct platform_device nslu2_eth[] = { + { + .name = "ixp4xx_eth", + .id = IXP4XX_ETH_NPEB, + .dev.platform_data = nslu2_plat_eth, + } +}; + static struct platform_device *nslu2_devices[] __initdata = { &nslu2_i2c_gpio, &nslu2_flash, &nslu2_beeper, -#ifdef CONFIG_LEDS_IXP4XX &nslu2_leds, -#endif + &nslu2_eth[0], }; static void nslu2_power_off(void) @@ -160,6 +186,25 @@ static void nslu2_power_off(void) gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH); } +static irqreturn_t nslu2_power_handler(int irq, void *dev_id) +{ + /* Signal init to do the ctrlaltdel action, this will bypass init if + * it hasn't started and do a kernel_restart. + */ + ctrl_alt_del(); + + return IRQ_HANDLED; +} + +static irqreturn_t nslu2_reset_handler(int irq, void *dev_id) +{ + /* This is the paper-clip reset, it shuts the machine down directly. + */ + machine_power_off(); + + return IRQ_HANDLED; +} + static void __init nslu2_timer_init(void) { /* The xtal on this machine is non-standard. */ @@ -175,13 +220,18 @@ static struct sys_timer nslu2_timer = { static void __init nslu2_init(void) { + DECLARE_MAC_BUF(mac_buf); + uint8_t __iomem *f; + int i; + ixp4xx_sys_init(); nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); nslu2_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; - pm_power_off = nslu2_power_off; + i2c_register_board_info(0, nslu2_i2c_board_info, + ARRAY_SIZE(nslu2_i2c_board_info)); /* * This is only useful on a modified machine, but it is valuable @@ -191,6 +241,43 @@ static void __init nslu2_init(void) (void)platform_device_register(&nslu2_uart); platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices)); + + pm_power_off = nslu2_power_off; + + if (request_irq(gpio_to_irq(NSLU2_RB_GPIO), &nslu2_reset_handler, + IRQF_DISABLED | IRQF_TRIGGER_LOW, + "NSLU2 reset button", NULL) < 0) { + + printk(KERN_DEBUG "Reset Button IRQ %d not available\n", + gpio_to_irq(NSLU2_RB_GPIO)); + } + + if (request_irq(gpio_to_irq(NSLU2_PB_GPIO), &nslu2_power_handler, + IRQF_DISABLED | IRQF_TRIGGER_HIGH, + "NSLU2 power button", NULL) < 0) { + + printk(KERN_DEBUG "Power Button IRQ %d not available\n", + gpio_to_irq(NSLU2_PB_GPIO)); + } + + /* + * Map in a portion of the flash and read the MAC address. + * Since it is stored in BE in the flash itself, we need to + * byteswap it if we're in LE mode. + */ + f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x40000); + if (f) { + for (i = 0; i < 6; i++) +#ifdef __ARMEB__ + nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + i); +#else + nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + (i^3)); +#endif + iounmap(f); + } + printk(KERN_INFO "NSLU2: Using MAC address %s for port 0\n", + print_mac(mac_buf, nslu2_plat_eth[0].hwaddr)); + } MACHINE_START(NSLU2, "Linksys NSLU2") |