From 92a5de80e5c53c56d098ea3cb6266138efd892f6 Mon Sep 17 00:00:00 2001 From: Alexey Kopytko Date: Fri, 26 Sep 2008 11:13:39 +0900 Subject: [ARM] Orion: Add Buffalo Linkstation Mini power-off method This patch adds specific power-off method for Buffalo Linkstation Mini board. The board has a hardware switch which should be monitored from userspace. When the switch is in OFF position the board should be rebooted and U-Boot will start in an idle mode and wait for the user to move the power switch back to ON position. Signed-off-by: Alexey Kopytko Signed-off-by: Nicolas Pitre --- arch/arm/mach-orion5x/lsmini-setup.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/lsmini-setup.c b/arch/arm/mach-orion5x/lsmini-setup.c index 4311dafd7e2..e0c43b8beb7 100644 --- a/arch/arm/mach-orion5x/lsmini-setup.c +++ b/arch/arm/mach-orion5x/lsmini-setup.c @@ -173,6 +173,23 @@ static struct mv_sata_platform_data lsmini_sata_data = { }; +/***************************************************************************** + * Linkstation Mini specific power off method: reboot + ****************************************************************************/ +/* + * On the Linkstation Mini, the shutdown process is following: + * - Userland monitors key events until the power switch goes to off position + * - The board reboots + * - U-boot starts and goes into an idle mode waiting for the user + * to move the switch to ON position + */ + +static void lsmini_power_off(void) +{ + arch_reset(0); +} + + /***************************************************************************** * General Setup ****************************************************************************/ @@ -241,6 +258,9 @@ static void __init lsmini_init(void) /* enable USB power */ gpio_set_value(LSMINI_GPIO_USB_POWER, 1); + /* register power-off method */ + pm_power_off = lsmini_power_off; + pr_info("%s: finished\n", __func__); } -- cgit v1.2.3