📄 standby.s
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/* * 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> .textENTRY(pxa_cpu_standby) ldr r0, =PSSR mov r1, #(PSSR_PH | PSSR_STS) mov r2, #PWRMODE_STANDBY mov r3, #UNCACHED_PHYS_0 @ Read mem context in. ldr ip, [r3] b 1f .align 51: 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
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