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Conflicts: include/asm-arm/arch-ixp4xx/io.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| /* | ||
| * DSM-G600 board-level PCI initialization | ||
| * | ||
| * Copyright (C) 2006 Tower Technologies | ||
| * Author: Alessandro Zummo <a.zummo@towertech.it> | ||
| * | ||
| * based on ixdp425-pci.c: | ||
| * Copyright (C) 2002 Intel Corporation. | ||
| * Copyright (C) 2003-2004 MontaVista Software, Inc. | ||
| * | ||
| * Maintainer: 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/pci.h> | ||
| #include <linux/init.h> | ||
| #include <linux/irq.h> | ||
|
|
||
| #include <asm/mach/pci.h> | ||
| #include <asm/mach-types.h> | ||
|
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| void __init dsmg600_pci_preinit(void) | ||
| { | ||
| set_irq_type(IRQ_DSMG600_PCI_INTA, IRQT_LOW); | ||
| set_irq_type(IRQ_DSMG600_PCI_INTB, IRQT_LOW); | ||
| set_irq_type(IRQ_DSMG600_PCI_INTC, IRQT_LOW); | ||
| set_irq_type(IRQ_DSMG600_PCI_INTD, IRQT_LOW); | ||
| set_irq_type(IRQ_DSMG600_PCI_INTE, IRQT_LOW); | ||
| set_irq_type(IRQ_DSMG600_PCI_INTF, IRQT_LOW); | ||
|
|
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| ixp4xx_pci_preinit(); | ||
| } | ||
|
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| static int __init dsmg600_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | ||
| { | ||
| static int pci_irq_table[DSMG600_PCI_MAX_DEV][DSMG600_PCI_IRQ_LINES] = | ||
| { | ||
| { IRQ_DSMG600_PCI_INTE, -1, -1 }, | ||
| { IRQ_DSMG600_PCI_INTA, -1, -1 }, | ||
| { IRQ_DSMG600_PCI_INTB, IRQ_DSMG600_PCI_INTC, IRQ_DSMG600_PCI_INTD }, | ||
| { IRQ_DSMG600_PCI_INTF, -1, -1 }, | ||
| }; | ||
|
|
||
| int irq = -1; | ||
|
|
||
| if (slot >= 1 && slot <= DSMG600_PCI_MAX_DEV && | ||
| pin >= 1 && pin <= DSMG600_PCI_IRQ_LINES) | ||
| irq = pci_irq_table[slot-1][pin-1]; | ||
|
|
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| return irq; | ||
| } | ||
|
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| struct hw_pci __initdata dsmg600_pci = { | ||
| .nr_controllers = 1, | ||
| .preinit = dsmg600_pci_preinit, | ||
| .swizzle = pci_std_swizzle, | ||
| .setup = ixp4xx_setup, | ||
| .scan = ixp4xx_scan_bus, | ||
| .map_irq = dsmg600_map_irq, | ||
| }; | ||
|
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| int __init dsmg600_pci_init(void) | ||
| { | ||
| if (machine_is_dsmg600()) | ||
| pci_common_init(&dsmg600_pci); | ||
|
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| return 0; | ||
| } | ||
|
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| subsys_initcall(dsmg600_pci_init); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| /* | ||
| * 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. | ||
| * | ||
| */ | ||
|
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| #include <linux/module.h> | ||
| #include <linux/reboot.h> | ||
| #include <linux/interrupt.h> | ||
| #include <linux/irq.h> | ||
| #include <linux/jiffies.h> | ||
| #include <linux/timer.h> | ||
|
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| #include <asm/mach-types.h> | ||
|
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| extern void ctrl_alt_del(void); | ||
|
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| /* 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; | ||
|
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| /* Must hold the button down for at least this many counts to be processed */ | ||
| #define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */ | ||
|
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| static void dsmg600_power_handler(unsigned long data); | ||
| static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler, 0, 0); | ||
|
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| static void dsmg600_power_handler(unsigned long data) | ||
| { | ||
| /* This routine is called twice per second to check the | ||
| * state of the power button. | ||
| */ | ||
|
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| if (*IXP4XX_GPIO_GPINR & DSMG600_PB_BM) { | ||
|
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| /* 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(); | ||
|
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| /* Change the state of the power LED to "blink" */ | ||
| gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW); | ||
| } | ||
| power_button_countdown--; | ||
|
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| } else { | ||
| power_button_countdown = PBUTTON_HOLDDOWN_COUNT; | ||
| } | ||
|
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| mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500)); | ||
| } | ||
|
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| 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(); | ||
|
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| return IRQ_HANDLED; | ||
| } | ||
|
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| static int __init dsmg600_power_init(void) | ||
| { | ||
| if (!(machine_is_dsmg600())) | ||
| return 0; | ||
|
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| if (request_irq(DSMG600_RB_IRQ, &dsmg600_reset_handler, | ||
| IRQF_DISABLED | IRQF_TRIGGER_LOW, "DSM-G600 reset button", | ||
| NULL) < 0) { | ||
|
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| printk(KERN_DEBUG "Reset Button IRQ %d not available\n", | ||
| DSMG600_RB_IRQ); | ||
|
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| return -EIO; | ||
| } | ||
|
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| /* 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. | ||
| */ | ||
|
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| /* Make sure that the power button GPIO is set up as an input */ | ||
| gpio_line_config(DSMG600_PB_GPIO, IXP4XX_GPIO_IN); | ||
|
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| /* Set the initial value for the power button IRQ handler */ | ||
| power_button_countdown = PBUTTON_HOLDDOWN_COUNT; | ||
|
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| mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500)); | ||
|
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| return 0; | ||
| } | ||
|
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| static void __exit dsmg600_power_exit(void) | ||
| { | ||
| if (!(machine_is_dsmg600())) | ||
| return; | ||
|
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| del_timer_sync(&dsmg600_power_timer); | ||
|
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| free_irq(DSMG600_RB_IRQ, NULL); | ||
| } | ||
|
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| module_init(dsmg600_power_init); | ||
| module_exit(dsmg600_power_exit); | ||
|
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| MODULE_AUTHOR("Michael Westerhof <mwester@dls.net>"); | ||
| MODULE_DESCRIPTION("DSM-G600 Power/Reset driver"); | ||
| MODULE_LICENSE("GPL"); |
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