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-rw-r--r--arch/arm/mach-ixp4xx/dsmg600-power.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/arch/arm/mach-ixp4xx/dsmg600-power.c b/arch/arm/mach-ixp4xx/dsmg600-power.c
deleted file mode 100644
index 3471787..0000000
--- a/arch/arm/mach-ixp4xx/dsmg600-power.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * arch/arm/mach-ixp4xx/dsmg600-power.c
- *
- * DSM-G600 Power/Reset driver
- * Author: Michael Westerhof <mwester@dls.net>
- *
- * Based on nslu2-power.c
- * Copyright (C) 2005 Tower Technologies
- * Author: Alessandro Zummo <a.zummo@towertech.it>
- *
- * which was based on nslu2-io.c
- * Copyright (C) 2004 Karen Spearel
- *
- * Maintainers: http://www.nslu2-linux.org/
- *
- * 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.
- *
- */
-
-#include <linux/module.h>
-#include <linux/reboot.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/jiffies.h>
-#include <linux/timer.h>
-
-#include <asm/mach-types.h>
-
-extern void ctrl_alt_del(void);
-
-/* This is used to make sure the power-button pusher is serious. The button
- * must be held until the value of this counter reaches zero.
- */
-static volatile int power_button_countdown;
-
-/* Must hold the button down for at least this many counts to be processed */
-#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */
-
-static void dsmg600_power_handler(unsigned long data);
-static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler, 0, 0);
-
-static void dsmg600_power_handler(unsigned long data)
-{
- /* This routine is called twice per second to check the
- * state of the power button.
- */
-
- if (*IXP4XX_GPIO_GPINR & DSMG600_PB_BM) {
-
- /* IO Pin is 1 (button pushed) */
- if (power_button_countdown == 0) {
- /* Signal init to do the ctrlaltdel action, this will bypass
- * init if it hasn't started and do a kernel_restart.
- */
- ctrl_alt_del();
-
- /* Change the state of the power LED to "blink" */
- gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
- }
- power_button_countdown--;
-
- } else {
- power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
- }
-
- mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
-}
-
-static irqreturn_t dsmg600_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 int __init dsmg600_power_init(void)
-{
- if (!(machine_is_dsmg600()))
- return 0;
-
- if (request_irq(DSMG600_RB_IRQ, &dsmg600_reset_handler,
- IRQF_DISABLED | IRQF_TRIGGER_LOW, "DSM-G600 reset button",
- NULL) < 0) {
-
- printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
- DSMG600_RB_IRQ);
-
- return -EIO;
- }
-
- /* The power button on the D-Link DSM-G600 is on GPIO 15, but
- * it cannot handle interrupts on that GPIO line. So we'll
- * have to poll it with a kernel timer.
- */
-
- /* Make sure that the power button GPIO is set up as an input */
- gpio_line_config(DSMG600_PB_GPIO, IXP4XX_GPIO_IN);
-
- /* Set the initial value for the power button IRQ handler */
- power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
-
- mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
-
- return 0;
-}
-
-static void __exit dsmg600_power_exit(void)
-{
- if (!(machine_is_dsmg600()))
- return;
-
- del_timer_sync(&dsmg600_power_timer);
-
- free_irq(DSMG600_RB_IRQ, NULL);
-}
-
-module_init(dsmg600_power_init);
-module_exit(dsmg600_power_exit);
-
-MODULE_AUTHOR("Michael Westerhof <mwester@dls.net>");
-MODULE_DESCRIPTION("DSM-G600 Power/Reset driver");
-MODULE_LICENSE("GPL");
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