diff options
Diffstat (limited to 'recipes/linux/linux-2.6.33/ts72xx/0011-ep93xx_pm.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.33/ts72xx/0011-ep93xx_pm.patch | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.33/ts72xx/0011-ep93xx_pm.patch b/recipes/linux/linux-2.6.33/ts72xx/0011-ep93xx_pm.patch new file mode 100644 index 0000000000..d1f675ab2e --- /dev/null +++ b/recipes/linux/linux-2.6.33/ts72xx/0011-ep93xx_pm.patch @@ -0,0 +1,114 @@ +From 21901427289fae9c16e9bfd40fbf81ddb78424a6 Mon Sep 17 00:00:00 2001 +From: Matthieu Crapet <mcrapet@gmail.com> +Date: Sun, 17 Jan 2010 18:28:27 +0100 +Subject: [PATCH 11/16] ep93xx_pm +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + + +Signed-off-by: Petr Štetiar <ynezz@true.cz> +--- + arch/arm/mach-ep93xx/Makefile | 3 ++ + arch/arm/mach-ep93xx/pm.c | 78 +++++++++++++++++++++++++++++++++++++++++ + 2 files changed, 81 insertions(+), 0 deletions(-) + create mode 100644 arch/arm/mach-ep93xx/pm.c + +diff --git a/arch/arm/mach-ep93xx/Makefile b/arch/arm/mach-ep93xx/Makefile +index c2451e6..8624d62 100644 +--- a/arch/arm/mach-ep93xx/Makefile ++++ b/arch/arm/mach-ep93xx/Makefile +@@ -12,3 +12,6 @@ obj-$(CONFIG_MACH_GESBC9312) += gesbc9312.o + obj-$(CONFIG_MACH_MICRO9) += micro9.o + obj-$(CONFIG_MACH_TS72XX) += ts72xx.o + obj-$(CONFIG_MACH_TS72XX_SBCINFO) += ts72xx_sbcinfo.o ++ ++# Power Management ++obj-$(CONFIG_PM) += pm.o +diff --git a/arch/arm/mach-ep93xx/pm.c b/arch/arm/mach-ep93xx/pm.c +new file mode 100644 +index 0000000..d3714c8 +--- /dev/null ++++ b/arch/arm/mach-ep93xx/pm.c +@@ -0,0 +1,78 @@ ++/* ++ * arch/arm/mach-ep93xx/pm.c ++ * ++ * EP93xx Power Management Routines ++ * ++ * Based on pm.c from Andre Renaud, Bluewater Systems Ltd. ++ * ++ * (c) Copyright 2008 Matthieu Crapet <mcrapet@gmail.com> ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version ++ * 2 of the License, or (at your option) any later version. ++ */ ++ ++#include <linux/suspend.h> ++#include <linux/sched.h> ++#include <linux/proc_fs.h> ++#include <linux/interrupt.h> ++#include <linux/sysfs.h> ++#include <linux/module.h> ++#include <linux/io.h> ++#include <mach/hardware.h> ++ ++ ++static inline void ep93xx_standby(void) ++{ ++ u32 v; ++ v = __raw_readl(EP93XX_SYSCON_DEVCFG); ++ v |= EP93XX_SYSCON_DEVCFG_SHENA; ++ __raw_writel(0xaa, EP93XX_SYSCON_SWLOCK); ++ __raw_writel(v, EP93XX_SYSCON_DEVCFG); ++ ++ v = __raw_readl(EP93XX_SYSCON_STANDBY); ++ ++ asm("nop; nop; nop; nop; nop"); ++} ++ ++static inline void ep93xx_resume(void) ++{ ++ u32 v; ++ ++ v = __raw_readl(EP93XX_SYSCON_DEVCFG); ++ v &= ~EP93XX_SYSCON_DEVCFG_SHENA; ++ __raw_writel(0xaa, EP93XX_SYSCON_SWLOCK); ++ __raw_writel(v, EP93XX_SYSCON_DEVCFG); ++} ++ ++static int suspend_ep93xx_enter(suspend_state_t state) ++{ ++ switch (state) { ++ case PM_SUSPEND_STANDBY: ++ case PM_SUSPEND_MEM: ++ ep93xx_standby(); /* go zzz */ ++ ep93xx_resume(); ++ } ++ return 0; ++} ++ ++static int suspend_ep93xx_valid(suspend_state_t state) ++{ ++ return (state == PM_SUSPEND_STANDBY) || ++ (state == PM_SUSPEND_MEM); ++} ++ ++ ++static struct platform_suspend_ops ep93xx_suspend_ops = { ++ .enter = suspend_ep93xx_enter, ++ .valid = suspend_ep93xx_valid, ++}; ++ ++static int __init ep93xx_pm_init(void) ++{ ++ pr_info("ep93xx: Power Management\n"); ++ suspend_set_ops(&ep93xx_suspend_ops); ++ return 0; ++} ++__initcall(ep93xx_pm_init); +-- +1.6.3.3 + |