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authorRichard Purdie <rpurdie@rpsys.net>2006-06-19 19:57:12 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-06-19 19:57:12 +0100
commit74617fb6b825ea370ae72565f7543306bc08ef6e (patch)
treeac6032e0b476f1bf61bf03aba44240e448739d57 /arch/arm/mach-pxa/tosa.c
parentb7408aff2d325581dcafffa5dbcc09c42ae64b5d (diff)
[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>
Diffstat (limited to 'arch/arm/mach-pxa/tosa.c')
-rw-r--r--arch/arm/mach-pxa/tosa.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 76c0e7f0a21..afa223b9e7a 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -19,12 +19,14 @@
#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>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/irq.h>
+#include <asm/system.h>
#include <asm/arch/irda.h>
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>
@@ -266,8 +268,31 @@ static struct platform_device *devices[] __initdata = {
&tosaled_device,
};
+static void tosa_poweroff(void)
+{
+ RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
+
+ pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_OUT);
+ GPSR(TOSA_GPIO_ON_RESET) = GPIO_bit(TOSA_GPIO_ON_RESET);
+
+ mdelay(1000);
+ arm_machine_restart('h');
+}
+
+static void tosa_restart(char mode)
+{
+ /* Bootloader magic for a reboot */
+ if((MSC0 & 0xffff0000) == 0x7ff00000)
+ MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
+
+ tosa_poweroff();
+}
+
static void __init tosa_init(void)
{
+ pm_power_off = tosa_poweroff;
+ arm_pm_restart = tosa_restart;
+
pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_IN);
pxa_gpio_mode(TOSA_GPIO_TC6393_INT | GPIO_IN);
pxa_gpio_mode(TOSA_GPIO_USB_IN | GPIO_IN);