Commit e86169ff authored by Yoichi Yuasa's avatar Yoichi Yuasa Committed by Ralf Baechle
Browse files

[MIPS] Cobalt: Add Cobalt Raq LED platform register and power off trigger 



Signed-off-by: default avatarYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent f4fae826

arch/mips/cobalt/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -2,7 +2,7 @@ 
# Makefile for the Cobalt micro systems family specific parts of the kernel

#



obj-y := buttons.o irq.o reset.o rtc.o serial.o setup.o

obj-y := buttons.o irq.o led.o reset.o rtc.o serial.o setup.o



obj-$(CONFIG_PCI)		+= pci.o

obj-$(CONFIG_EARLY_PRINTK)	+= console.o

arch/mips/cobalt/led.c

0 → 100644
+56 −0
Original line number Diff line number Diff line 
/*

 *  Registration of Cobalt LED platform device.

 *

 *  Copyright (C) 2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include <linux/errno.h>

#include <linux/init.h>

#include <linux/ioport.h>

#include <linux/platform_device.h>



static struct resource cobalt_led_resource __initdata = {

	.start	= 0x1c000000,

	.end	= 0x1c000000,

	.flags	= IORESOURCE_MEM,

};



static __init int cobalt_led_add(void)

{

	struct platform_device *pdev;

	int retval;



	pdev = platform_device_alloc("cobalt-raq-leds", -1);



	if (!pdev)

		return -ENOMEM;



	retval = platform_device_add_resources(pdev, &cobalt_led_resource, 1);

	if (retval)

		goto err_free_device;



	retval = platform_device_add(pdev);

	if (retval)

		goto err_free_device;



	return 0;



err_free_device:

	platform_device_put(pdev);



	return retval;

}

device_initcall(cobalt_led_add);

arch/mips/cobalt/reset.c

+14 −8
Original line number Diff line number Diff line
@@ -8,31 +8,37 @@ 
 * Copyright (C) 1995, 1996, 1997 by Ralf Baechle

 * Copyright (C) 2001 by Liam Davies (ldavies@agile.tv)

 */

#include <linux/init.h>

#include <linux/jiffies.h>



#include <asm/io.h>

#include <asm/reboot.h>

#include <linux/leds.h>



#include <cobalt.h>



DEFINE_LED_TRIGGER(power_off_led_trigger);



static int __init ledtrig_power_off_init(void)

{

	led_trigger_register_simple("power-off", &power_off_led_trigger);

	return 0;

}

device_initcall(ledtrig_power_off_init);



void cobalt_machine_halt(void)

{

	int state, last, diff;

	unsigned long mark;



	/*

	 * turn off bar on Qube, flash power off LED on RaQ (0.5Hz)

	 * turn on power off LED on RaQ

	 *

	 * restart if ENTER and SELECT are pressed

	 */



	last = COBALT_KEY_PORT;



	for (state = 0;;) {



		state ^= COBALT_LED_POWER_OFF;

		COBALT_LED_PORT = state;

	led_trigger_event(power_off_led_trigger, LED_FULL);



	for (state = 0;;) {

		diff = COBALT_KEY_PORT ^ last;

		last ^= diff;