diff options
Diffstat (limited to 'target/linux/ixp4xx/patches-2.6.24/032-subsume_power_files.patch')
| -rw-r--r-- | target/linux/ixp4xx/patches-2.6.24/032-subsume_power_files.patch | 873 |
1 files changed, 873 insertions, 0 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.24/032-subsume_power_files.patch b/target/linux/ixp4xx/patches-2.6.24/032-subsume_power_files.patch new file mode 100644 index 000000000..fa4070ba2 --- /dev/null +++ b/target/linux/ixp4xx/patches-2.6.24/032-subsume_power_files.patch @@ -0,0 +1,873 @@ +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 + |