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[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 <alexey@kopytko.ru>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
This commit is contained in:
Alexey Kopytko 2008-09-26 11:13:39 +09:00 committed by Nicolas Pitre
parent 7b0a26f2ca
commit 92a5de80e5
1 changed files with 20 additions and 0 deletions
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20
arch/arm/mach-orion5x/lsmini-setup.c
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@ -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__);
}