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authorYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>2007-10-01 19:45:05 +0900
committerRalf Baechle <ralf@linux-mips.org>2007-10-11 23:46:12 +0100
commite86169fffedc2f461be6f70817ae5ab201c12fd5 (patch)
tree62a42062dbdddb79c759736122a0af161d2e3668 /arch/mips/cobalt
parentf4fae8267c152d6c319a7bfaf92ed1c2c9a2c4e8 (diff)
downloadlinux-e86169fffedc2f461be6f70817ae5ab201c12fd5.tar.gz
[MIPS] Cobalt: Add Cobalt Raq LED platform register and power off trigger
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/cobalt')
-rw-r--r--arch/mips/cobalt/Makefile2
-rw-r--r--arch/mips/cobalt/led.c56
-rw-r--r--arch/mips/cobalt/reset.c22
3 files changed, 71 insertions, 9 deletions
diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile
index a043f93f7d0..6b83f4ddc8f 100644
--- a/arch/mips/cobalt/Makefile
+++ b/arch/mips/cobalt/Makefile
@@ -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
diff --git a/arch/mips/cobalt/led.c b/arch/mips/cobalt/led.c
new file mode 100644
index 00000000000..8150af3abb8
--- /dev/null
+++ b/arch/mips/cobalt/led.c
@@ -0,0 +1,56 @@
+/*
+ * 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);
diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c
index 43cca21fdbc..f503a0d04b3 100644
--- a/arch/mips/cobalt/reset.c
+++ b/arch/mips/cobalt/reset.c
@@ -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;