[ARM] 4807/2: ixp4xx: Merge nslu2-power.c into nslu2-setup.c
There is no reason to have power control in a separate file from the
board setup code. Merge it back into the board setup file, removing
superfluous header includes and removing superfluous constants from
the machine header file.
--
Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index fd9ec17..acaebcb 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 @@
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 @@
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 @@
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.