[ARM] 3593/1: Add reboot and shutdown handlers for Zaurus handhelds

Patch from Richard Purdie

Add functionality to allow machine specific reboot handlers on ARM.
Add machine specific reboot and poweroff handlers for all PXA Zaurus
models.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 25 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index d6d726036361..bf6648a83901 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -19,6 +19,7 @@
 #include <linux/fs.h>
 #include <linux/interrupt.h>
 #include <linux/mmc/host.h>
+#include <linux/pm.h>
 
 #include <asm/setup.h>
 #include <asm/memory.h>
@@ -26,6 +27,7 @@
 #include <asm/hardware.h>
 #include <asm/irq.h>
 #include <asm/io.h>
+#include <asm/system.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -310,8 +312,31 @@ static struct platform_device *devices[] __initdata = {
         &corgiled_device,
 };
 
+static void corgi_poweroff(void)
+{
+        RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
+
+        if (!machine_is_corgi())
+                /* Green LED off tells the bootloader to halt */
+                reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
+        arm_machine_restart('h');
+}
+
+static void corgi_restart(char mode)
+{
+        RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
+
+        if (!machine_is_corgi())
+                /* Green LED on tells the bootloader to reboot */
+                set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
+        arm_machine_restart('h');
+}
+
 static void __init corgi_init(void)
 {
+        pm_power_off = corgi_poweroff;
+        arm_pm_restart = corgi_restart;
+
         /* setup sleep mode values */
         PWER  = 0x00000002;
         PFER  = 0x00000000;