diff options
Diffstat (limited to 'arch/arm/mach-ixp4xx/nslu2-setup.c')
| -rw-r--r-- | arch/arm/mach-ixp4xx/nslu2-setup.c | 51 |
1 files changed, 45 insertions, 6 deletions
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c index fd9ec17c8b8..acaebcbce53 100644 --- a/arch/arm/mach-ixp4xx/nslu2-setup.c +++ b/arch/arm/mach-ixp4xx/nslu2-setup.c @@ -3,22 +3,26 @@ * * 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/if_ether.h> -#include <linux/kernel.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> @@ -27,6 +31,7 @@ #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", @@ -181,6 +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. */ @@ -206,8 +230,6 @@ static void __init nslu2_init(void) 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)); @@ -220,6 +242,23 @@ static void __init nslu2_init(void) 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. |