[deliverable/linux.git] / arch / arm / mach-pxa / standby.S

/*
 * 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)
	mov	r2, #2
	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
Commit	Line	Data
26705ca4 TP	1	/*
	2	* PXA27x standby mode
	3	*
	4	* Author: David Burrage
	5	*
	6	* 2005 (c) MontaVista Software, Inc. This file is licensed under
	7	* the terms of the GNU General Public License version 2. This program
	8	* is licensed "as is" without any warranty of any kind, whether express
	9	* or implied.
	10	*/
	11
	12	#include <linux/config.h>
	13	#include <linux/linkage.h>
	14	#include <asm/assembler.h>
	15	#include <asm/hardware.h>
	16
	17	#include <asm/arch/pxa-regs.h>
	18
	19	.text
	20
	21	ENTRY(pxa_cpu_standby)
	22	ldr r0, =PSSR
	23	mov r1, #(PSSR_PH \| PSSR_STS)
	24	mov r2, #2
	25	mov r3, #UNCACHED_PHYS_0 @ Read mem context in.
	26	ldr ip, [r3]
	27	b 1f
	28
	29	.align 5
	30	1: mcr p14, 0, r2, c7, c0, 0 @ put the system into Standby
	31	str r1, [r0] @ make sure PSSR_PH/STS are clear
	32	mov pc, lr