| Todd Poynor | 26705ca | 2005-07-01 11:27:05 +0100 | [diff] [blame] | 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 | |
| Todd Poynor | 26705ca | 2005-07-01 11:27:05 +0100 | [diff] [blame] | 12 | #include <linux/linkage.h> |
| 13 | #include <asm/assembler.h> |
| 14 | #include <asm/hardware.h> |
| 15 | |
| 16 | #include <asm/arch/pxa-regs.h> |
| 17 | |
| 18 | .text |
| 19 | |
| 20 | ENTRY(pxa_cpu_standby) |
| 21 | ldr r0, =PSSR |
| 22 | mov r1, #(PSSR_PH | PSSR_STS) |
| Todd Poynor | 80a1857 | 2005-10-28 16:25:01 +0100 | [diff] [blame] | 23 | mov r2, #PWRMODE_STANDBY |
| Todd Poynor | 26705ca | 2005-07-01 11:27:05 +0100 | [diff] [blame] | 24 | mov r3, #UNCACHED_PHYS_0 @ Read mem context in. |
| 25 | ldr ip, [r3] |
| 26 | b 1f |
| 27 | |
| 28 | .align 5 |
| 29 | 1: mcr p14, 0, r2, c7, c0, 0 @ put the system into Standby |
| 30 | str r1, [r0] @ make sure PSSR_PH/STS are clear |
| 31 | mov pc, lr |