2005-07-01 17:27:05 +07:00
|
|
|
/*
|
|
|
|
|
* PXA27x standby mode
|
|
|
|
|
*
|
|
|
|
|
* Author: David Burrage
|
|
|
|
|
*
|
|
|
|
|
* 2005 (c) MontaVista Software, Inc. This file is licensed under
|
|
|
|
|
* the terms of the GNU General Public License version 2. This program
|
|
|
|
|
* is licensed "as is" without any warranty of any kind, whether express
|
|
|
|
|
* or implied.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <linux/config.h>
|
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
|
#include <asm/assembler.h>
|
|
|
|
|
#include <asm/hardware.h>
|
|
|
|
|
|
|
|
|
|
#include <asm/arch/pxa-regs.h>
|
|
|
|
|
|
|
|
|
|
.text
|
|
|
|
|
|
|
|
|
|
ENTRY(pxa_cpu_standby)
|
|
|
|
|
ldr r0, =PSSR
|
|
|
|
|
mov r1, #(PSSR_PH | PSSR_STS)
|
2005-10-28 22:25:01 +07:00
|
|
|
mov r2, #PWRMODE_STANDBY
|
2005-07-01 17:27:05 +07:00
|
|
|
mov r3, #UNCACHED_PHYS_0 @ Read mem context in.
|
|
|
|
|
ldr ip, [r3]
|
|
|
|
|
b 1f
|
|
|
|
|
|
|
|
|
|
.align 5
|
|
|
|
|
1: mcr p14, 0, r2, c7, c0, 0 @ put the system into Standby
|
|
|
|
|
str r1, [r0] @ make sure PSSR_PH/STS are clear
|
|
|
|
|
mov pc, lr
|
