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 21ENTRY(pxa_cpu_standby) 22 ldr r0, =PSSR 23 mov r1, #(PSSR_PH | PSSR_STS) 24 mov r2, #PWRMODE_STANDBY 25 mov r3, #UNCACHED_PHYS_0 @ Read mem context in. 26 ldr ip, [r3] 27 b 1f 28 29 .align 5 301: 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 33