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openwrt/target/linux/ixp4xx/patches-2.6.24/032-subsume_power_files.patch
Rod Whitby 5c58e93209 ixp4xx: Updated patches to include all upstream-merged ixp4xx patches 
SVN-Revision: 10636
2008-03-21 13:57:03 +00:00

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25 KiB
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From: Rod Whitby <rod@whitby.id.au>
Subject: ixp4xx: Merge nslu2-power.c into nslu2-setup.c (Patch #4807)
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>
--
PATCH FOLLOWS
KernelVersion: v2.6.24-1917-gaf66bd3
Index: linux-2.6.24-armeb/arch/arm/mach-ixp4xx/Makefile
===================================================================
--- linux-2.6.24-armeb.orig/arch/arm/mach-ixp4xx/Makefile 2008-02-03 22:45:22.000000000 +1030
+++ linux-2.6.24-armeb/arch/arm/mach-ixp4xx/Makefile 2008-02-03 22:45:44.000000000 +1030
@@ -23,7 +23,7 @@
obj-$(CONFIG_MACH_IXDPG425) += coyote-setup.o
obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-setup.o
obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-setup.o
-obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o nslu2-power.o
+obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o
obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o nas100d-power.o
obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o dsmg600-power.o
obj-$(CONFIG_MACH_GATEWAY7001) += gateway7001-setup.o
Index: linux-2.6.24-armeb/arch/arm/mach-ixp4xx/nslu2-power.c
===================================================================
--- linux-2.6.24-armeb.orig/arch/arm/mach-ixp4xx/nslu2-power.c 2008-02-03 22:45:10.000000000 +1030
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,92 +0,0 @@
-/*
- * arch/arm/mach-ixp4xx/nslu2-power.c
- *
- * NSLU2 Power/Reset driver
- *
- * Copyright (C) 2005 Tower Technologies
- *
- * based on nslu2-io.c
- * Copyright (C) 2004 Karen Spearel
- *
- * Author: Alessandro Zummo <a.zummo@towertech.it>
- * 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/irq.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-
-#include <asm/mach-types.h>
-
-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 int __init nslu2_power_init(void)
-{
- if (!(machine_is_nslu2()))
- return 0;
-
- *IXP4XX_GPIO_GPISR = 0x20400000; /* read the 2 irqs to clr */
-
- set_irq_type(NSLU2_RB_IRQ, IRQT_LOW);
- set_irq_type(NSLU2_PB_IRQ, IRQT_HIGH);
-
- if (request_irq(NSLU2_RB_IRQ, &nslu2_reset_handler,
- IRQF_DISABLED, "NSLU2 reset button", NULL) < 0) {
-
- printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
- NSLU2_RB_IRQ);
-
- return -EIO;
- }
-
- if (request_irq(NSLU2_PB_IRQ, &nslu2_power_handler,
- IRQF_DISABLED, "NSLU2 power button", NULL) < 0) {
-
- printk(KERN_DEBUG "Power Button IRQ %d not available\n",
- NSLU2_PB_IRQ);
-
- return -EIO;
- }
-
- return 0;
-}
-
-static void __exit nslu2_power_exit(void)
-{
- if (!(machine_is_nslu2()))
- return;
-
- free_irq(NSLU2_RB_IRQ, NULL);
- free_irq(NSLU2_PB_IRQ, NULL);
-}
-
-module_init(nslu2_power_init);
-module_exit(nslu2_power_exit);
-
-MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
-MODULE_DESCRIPTION("NSLU2 Power/Reset driver");
-MODULE_LICENSE("GPL");
Index: linux-2.6.24-armeb/arch/arm/mach-ixp4xx/nslu2-setup.c
===================================================================
--- linux-2.6.24-armeb.orig/arch/arm/mach-ixp4xx/nslu2-setup.c 2008-02-03 22:45:22.000000000 +1030
+++ linux-2.6.24-armeb/arch/arm/mach-ixp4xx/nslu2-setup.c 2008-02-03 22:45:44.000000000 +1030
@@ -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.
Index: linux-2.6.24-armeb/include/asm-arm/arch-ixp4xx/nslu2.h
===================================================================
--- linux-2.6.24-armeb.orig/include/asm-arm/arch-ixp4xx/nslu2.h 2008-02-03 22:45:11.000000000 +1030
+++ linux-2.6.24-armeb/include/asm-arm/arch-ixp4xx/nslu2.h 2008-02-03 22:45:44.000000000 +1030
@@ -39,34 +39,17 @@
/* Buttons */
-#define NSLU2_PB_GPIO 5
+#define NSLU2_PB_GPIO 5 /* power button */
#define NSLU2_PO_GPIO 8 /* power off */
-#define NSLU2_RB_GPIO 12
-
-#define NSLU2_PB_IRQ IRQ_IXP4XX_GPIO5
-#define NSLU2_RB_IRQ IRQ_IXP4XX_GPIO12
-
-#define NSLU2_PB_BM (1L << NSLU2_PB_GPIO)
-#define NSLU2_PO_BM (1L << NSLU2_PO_GPIO)
-#define NSLU2_RB_BM (1L << NSLU2_RB_GPIO)
+#define NSLU2_RB_GPIO 12 /* reset button */
/* Buzzer */
#define NSLU2_GPIO_BUZZ 4
-#define NSLU2_BZ_BM (1L << NSLU2_GPIO_BUZZ)
/* LEDs */
#define NSLU2_LED_RED_GPIO 0
#define NSLU2_LED_GRN_GPIO 1
-
-#define NSLU2_LED_RED_BM (1L << NSLU2_LED_RED_GPIO)
-#define NSLU2_LED_GRN_BM (1L << NSLU2_LED_GRN_GPIO)
-
#define NSLU2_LED_DISK1_GPIO 3
#define NSLU2_LED_DISK2_GPIO 2
-
-#define NSLU2_LED_DISK1_BM (1L << NSLU2_LED_DISK1_GPIO)
-#define NSLU2_LED_DISK2_BM (1L << NSLU2_LED_DISK2_GPIO)
-
-
From: Rod Whitby <rod@whitby.id.au>
Subject: ixp4xx: Merge nas100d-power.c into nas100d-setup.c (Patch #4808)
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 and remove
superfluous header includes.
Signed-off-by: Rod Whitby <rod@whitby.id.au>
--
PATCH FOLLOWS
KernelVersion: 2.6.24-git9
diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile
index 4fc7316..a7880ab 100644
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -24,7 +24,7 @@ obj-$(CONFIG_MACH_IXDPG425) += coyote-setup.o
obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-setup.o
obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-setup.o
obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o
-obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o nas100d-power.o
+obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o
obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o dsmg600-power.o
obj-$(CONFIG_MACH_GATEWAY7001) += gateway7001-setup.o
obj-$(CONFIG_MACH_WG302V2) += wg302v2-setup.o
diff --git a/arch/arm/mach-ixp4xx/nas100d-power.c b/arch/arm/mach-ixp4xx/nas100d-power.c
deleted file mode 100644
index 4c1c01b..0000000
--- a/arch/arm/mach-ixp4xx/nas100d-power.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * arch/arm/mach-ixp4xx/nas100d-power.c
- *
- * NAS 100d Power/Reset driver
- *
- * Copyright (C) 2005 Tower Technologies
- *
- * based on nas100d-io.c
- * Copyright (C) 2004 Karen Spearel
- *
- * Author: Alessandro Zummo <a.zummo@towertech.it>
- * 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/interrupt.h>
-#include <linux/irq.h>
-#include <linux/module.h>
-#include <linux/reboot.h>
-#include <linux/jiffies.h>
-#include <linux/timer.h>
-
-#include <asm/gpio.h>
-#include <asm/mach-types.h>
-
-/* 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 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 nas100d_power_handler(unsigned long data);
-static DEFINE_TIMER(nas100d_power_timer, nas100d_power_handler, 0, 0);
-
-static void nas100d_power_handler(unsigned long data)
-{
- /* This routine is called twice per second to check the
- * state of the power button.
- */
-
- if (gpio_get_value(NAS100D_PB_GPIO)) {
-
- /* IO Pin is 1 (button pushed) */
- if (power_button_countdown > 0)
- power_button_countdown--;
-
- } else {
-
- /* Done on button release, to allow for auto-power-on mods. */
- 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(NAS100D_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
- } else {
- power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
- }
- }
-
- mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500));
-}
-
-static irqreturn_t nas100d_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 nas100d_power_init(void)
-{
- if (!(machine_is_nas100d()))
- return 0;
-
- set_irq_type(gpio_to_irq(NAS100D_RB_GPIO), IRQT_LOW);
-
- if (request_irq(gpio_to_irq(NAS100D_RB_GPIO), &nas100d_reset_handler,
- IRQF_DISABLED, "NAS100D reset button", NULL) < 0) {
-
- printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
- gpio_to_irq(NAS100D_RB_GPIO));
-
- return -EIO;
- }
-
- /* The power button on the Iomega NAS100d is on GPIO 14, 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(NAS100D_PB_GPIO, IXP4XX_GPIO_IN);
-
- /* Set the initial value for the power button IRQ handler */
- power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
-
- mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500));
-
- return 0;
-}
-
-static void __exit nas100d_power_exit(void)
-{
- if (!(machine_is_nas100d()))
- return;
-
- del_timer_sync(&nas100d_power_timer);
-
- free_irq(gpio_to_irq(NAS100D_RB_GPIO), NULL);
-}
-
-module_init(nas100d_power_init);
-module_exit(nas100d_power_exit);
-
-MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
-MODULE_DESCRIPTION("NAS100D Power/Reset driver");
-MODULE_LICENSE("GPL");
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index a432226..4cecae8 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -3,8 +3,14 @@
*
* NAS 100d 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 nas100d-power.c:
+ * Copyright (C) 2005 Tower Technologies
+ * based on nas100d-io.c
+ * Copyright (C) 2004 Karen Spearel
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Author: Rod Whitby <rod@whitby.id.au>
@@ -13,10 +19,13 @@
*/
#include <linux/if_ether.h>
-#include <linux/kernel.h>
+#include <linux/irq.h>
+#include <linux/jiffies.h>
+#include <linux/timer.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>
@@ -24,6 +33,7 @@
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/io.h>
+#include <asm/gpio.h>
static struct flash_platform_data nas100d_flash_data = {
.map_name = "cfi_probe",
@@ -168,6 +178,57 @@ static void nas100d_power_off(void)
gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
}
+/* 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 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 nas100d_power_handler(unsigned long data);
+static DEFINE_TIMER(nas100d_power_timer, nas100d_power_handler, 0, 0);
+
+static void nas100d_power_handler(unsigned long data)
+{
+ /* This routine is called twice per second to check the
+ * state of the power button.
+ */
+
+ if (gpio_get_value(NAS100D_PB_GPIO)) {
+
+ /* IO Pin is 1 (button pushed) */
+ if (power_button_countdown > 0)
+ power_button_countdown--;
+
+ } else {
+
+ /* Done on button release, to allow for auto-power-on mods. */
+ 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(NAS100D_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
+ } else {
+ power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
+ }
+ }
+
+ mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500));
+}
+
+static irqreturn_t nas100d_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 nas100d_init(void)
{
DECLARE_MAC_BUF(mac_buf);
@@ -183,8 +244,6 @@ static void __init nas100d_init(void)
nas100d_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
- pm_power_off = nas100d_power_off;
-
i2c_register_board_info(0, nas100d_i2c_board_info,
ARRAY_SIZE(nas100d_i2c_board_info));
@@ -197,6 +256,29 @@ static void __init nas100d_init(void)
platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
+ pm_power_off = nas100d_power_off;
+
+ if (request_irq(gpio_to_irq(NAS100D_RB_GPIO), &nas100d_reset_handler,
+ IRQF_DISABLED | IRQF_TRIGGER_LOW,
+ "NAS100D reset button", NULL) < 0) {
+
+ printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
+ gpio_to_irq(NAS100D_RB_GPIO));
+ }
+
+ /* The power button on the Iomega NAS100d is on GPIO 14, 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(NAS100D_PB_GPIO, IXP4XX_GPIO_IN);
+
+ /* Set the initial value for the power button IRQ handler */
+ power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
+
+ mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500));
+
/*
* 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
--
1.5.2.5
From: Rod Whitby <rod@whitby.id.au>
Subject: ixp4xx: Merge dsmg600-power.c into dsmg600-setup.c (Patch #4809)
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 and remove
superfluous header includes.
Signed-off-by: Rod Whitby <rod@whitby.id.au>
--
PATCH FOLLOWS
KernelVersion: 2.6.24-git9
diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile
index a7880ab..c195688 100644
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -25,7 +25,7 @@ obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-setup.o
obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-setup.o
obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o
obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o
-obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o dsmg600-power.o
+obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o
obj-$(CONFIG_MACH_GATEWAY7001) += gateway7001-setup.o
obj-$(CONFIG_MACH_WG302V2) += wg302v2-setup.o
diff --git a/arch/arm/mach-ixp4xx/dsmg600-power.c b/arch/arm/mach-ixp4xx/dsmg600-power.c
deleted file mode 100644
index db63987..0000000
--- a/arch/arm/mach-ixp4xx/dsmg600-power.c
+++ /dev/null
@@ -1,129 +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/gpio.h>
-#include <asm/mach-types.h>
-
-/* 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 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 (gpio_get_value(DSMG600_PB_GPIO)) {
-
- /* IO Pin is 1 (button pushed) */
- if (power_button_countdown > 0)
- power_button_countdown--;
-
- } else {
-
- /* Done on button release, to allow for auto-power-on mods. */
- 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);
- } 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(gpio_to_irq(DSMG600_RB_GPIO), &dsmg600_reset_handler,
- IRQF_DISABLED | IRQF_TRIGGER_LOW, "DSM-G600 reset button",
- NULL) < 0) {
-
- printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
- gpio_to_irq(DSMG600_RB_GPIO));
-
- 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(gpio_to_irq(DSMG600_RB_GPIO), 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");
diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index d0e1295..6886596 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -1,20 +1,29 @@
/*
* DSM-G600 board-setup
*
+ * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
* Copyright (C) 2006 Tower Technologies
- * Author: Alessandro Zummo <a.zummo@towertech.it>
*
- * based ixdp425-setup.c:
+ * based on ixdp425-setup.c:
* Copyright (C) 2003-2004 MontaVista Software, Inc.
+ * based on nslu2-power.c:
+ * Copyright (C) 2005 Tower Technologies
+ * based on nslu2-io.c:
+ * Copyright (C) 2004 Karen Spearel
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
+ * Author: Michael Westerhof <mwester@dls.net>
+ * Author: Rod Whitby <rod@whitby.id.au>
* Maintainers: http://www.nslu2-linux.org/
*/
-#include <linux/kernel.h>
+#include <linux/irq.h>
+#include <linux/jiffies.h>
+#include <linux/timer.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>
@@ -22,6 +31,7 @@
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/time.h>
+#include <asm/gpio.h>
static struct flash_platform_data dsmg600_flash_data = {
.map_name = "cfi_probe",
@@ -140,6 +150,57 @@ static void dsmg600_power_off(void)
gpio_line_set(DSMG600_PO_GPIO, IXP4XX_GPIO_HIGH);
}
+/* 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 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 (gpio_get_value(DSMG600_PB_GPIO)) {
+
+ /* IO Pin is 1 (button pushed) */
+ if (power_button_countdown > 0)
+ power_button_countdown--;
+
+ } else {
+
+ /* Done on button release, to allow for auto-power-on mods. */
+ 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);
+ } 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 void __init dsmg600_timer_init(void)
{
/* The xtal on this machine is non-standard. */
@@ -164,8 +225,6 @@ static void __init dsmg600_init(void)
dsmg600_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
- pm_power_off = dsmg600_power_off;
-
i2c_register_board_info(0, dsmg600_i2c_board_info,
ARRAY_SIZE(dsmg600_i2c_board_info));
@@ -176,6 +235,29 @@ static void __init dsmg600_init(void)
(void)platform_device_register(&dsmg600_uart);
platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices));
+
+ pm_power_off = dsmg600_power_off;
+
+ if (request_irq(gpio_to_irq(DSMG600_RB_GPIO), &dsmg600_reset_handler,
+ IRQF_DISABLED | IRQF_TRIGGER_LOW,
+ "DSM-G600 reset button", NULL) < 0) {
+
+ printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
+ gpio_to_irq(DSMG600_RB_GPIO));
+ }
+
+ /* 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));
}
MACHINE_START(DSMG600, "D-Link DSM-G600 RevA")
--
1.5.2.5
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