ARM: EXYNOS4: Support system level power down configuration

EXYNOS4 supports 3 different system level power down mode by PMU (Power
Management Unit). Each power down mode need to configure many PMU registers
with different value. This patch supports function to configure PMU registers
with pre-defined values in PMU code. This function may be used by PM code and
AFTR/LPA support driver.

Signed-off-by: Jaecheol Lee <jc.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos4/include/mach/pmu.h b/arch/arm/mach-exynos4/include/mach/pmu.h
new file mode 100644
index 000000000000..a952904b010e
--- /dev/null
+++ b/arch/arm/mach-exynos4/include/mach/pmu.h
@@ -0,0 +1,25 @@
+/* linux/arch/arm/mach-exynos4/include/mach/pmu.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * EXYNOS4210 - PMU(Power Management Unit) support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_ARCH_PMU_H
+#define __ASM_ARCH_PMU_H __FILE__
+
+enum sys_powerdown {
+        SYS_AFTR,
+        SYS_LPA,
+        SYS_SLEEP,
+        NUM_SYS_POWERDOWN,
+};
+
+extern void exynos4_sys_powerdown_conf(enum sys_powerdown mode);
+
+#endif /* __ASM_ARCH_PMU_H */