ARM: S5PV210: Add Power Management Support

This patch adds suspend-to-ram support for S5PV210.
Note. This patch is confirmed on SMDKV210 and SMDKC110 board.

Signed-off-by: Jongpill Lee <boyko.lee@samsung.com>
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

2 files changed, 48 insertions, 2 deletions

diff --git a/arch/arm/mach-s5pv210/include/mach/pm-core.h b/arch/arm/mach-s5pv210/include/mach/pm-core.h
new file mode 100644
index 000000000000..e8d394f8b057
--- /dev/null
+++ b/arch/arm/mach-s5pv210/include/mach/pm-core.h
@@ -0,0 +1,43 @@
+/* linux/arch/arm/mach-s5pv210/include/mach/pm-core.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com
+ *
+ * Based on arch/arm/mach-s3c2410/include/mach/pm-core.h,
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S5PV210 - PM core support for arch/arm/plat-s5p/pm.c
+ *
+ * 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.
+*/
+
+static inline void s3c_pm_debug_init_uart(void)
+{
+        /* nothing here yet */
+}
+
+static inline void s3c_pm_arch_prepare_irqs(void)
+{
+        __raw_writel(s3c_irqwake_intmask, S5P_WAKEUP_MASK);
+        __raw_writel(s3c_irqwake_eintmask, S5P_EINT_WAKEUP_MASK);
+}
+
+static inline void s3c_pm_arch_stop_clocks(void)
+{
+        /* nothing here yet */
+}
+
+static inline void s3c_pm_arch_show_resume_irqs(void)
+{
+        /* nothing here yet */
+}
+
+static inline void s3c_pm_arch_update_uart(void __iomem *regs,
+                                           struct pm_uart_save *save)
+{
+        /* nothing here yet */
+}
diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
index 499aef737476..929fd3a33f8a 100644
--- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
+++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
@@ -95,7 +95,7 @@
 /* Registers related to power management */
 #define S5P_PWR_CFG             S5P_CLKREG(0xC000)
 #define S5P_EINT_WAKEUP_MASK    S5P_CLKREG(0xC004)
-#define S5P_WAKEUP_MASK         S5P_CLKREG(0xC008)
+#define S5P_WAKEUP_MASK         S5P_CLKREG(0xC008)
 #define S5P_PWR_MODE            S5P_CLKREG(0xC00C)
 #define S5P_NORMAL_CFG          S5P_CLKREG(0xC010)
 #define S5P_IDLE_CFG            S5P_CLKREG(0xC020)
@@ -159,8 +159,11 @@
 #define S5P_SLEEP_CFG_USBOSC_EN         (1 << 1)
 
 /* OTHERS Resgister */
+#define S5P_OTHERS_RET_IO               (1 << 31)
+#define S5P_OTHERS_RET_CF               (1 << 30)
+#define S5P_OTHERS_RET_MMC              (1 << 29)
+#define S5P_OTHERS_RET_UART             (1 << 28)
 #define S5P_OTHERS_USB_SIG_MASK         (1 << 16)
-#define S5P_OTHERS_MIPI_DPHY_EN         (1 << 28)
 
 /* MIPI */
 #define S5P_MIPI_DPHY_EN                (3)