From 9ce1e8b047a6f771a6931f4338d29b7bb7a9f6c3 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=E5=BC=A0=E6=99=B4?= <zhangqing@rock-chips.com>
Date: Mon, 24 Oct 2011 19:54:00 -0700
Subject: [PATCH] add i2c_sram.c in sram  for i2c communication when system is
 sleep

---
 arch/arm/mach-rk29/Kconfig                   | 5 ++++-
 arch/arm/mach-rk29/Makefile                  | 1 +
 arch/arm/mach-rk29/include/mach/rk29_iomap.h | 3 +++
 arch/arm/mach-rk29/io.c                      | 3 +++
 4 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-rk29/Kconfig b/arch/arm/mach-rk29/Kconfig
index 4179baaf48e0..07631697203c 100644
--- a/arch/arm/mach-rk29/Kconfig
+++ b/arch/arm/mach-rk29/Kconfig
@@ -236,7 +236,10 @@ config RK29_SPI_INSRAM
 	tristate "Support spi control interface"
 	depends on REGULATOR_WM831X
 	default ns
-
+config RK29_I2C_INSRAM
+	tristate "Support i2c control interface"
+	depends on REGULATOR_ACT8891
+	default ns
 config RK29_PWM_INSRAM
 	tristate "Support pwm control interface"
 	depends on RK29_PWM_REGULATOR
diff --git a/arch/arm/mach-rk29/Makefile b/arch/arm/mach-rk29/Makefile
index ea3f7a12425d..e36d1e4d2bd3 100644
--- a/arch/arm/mach-rk29/Makefile
+++ b/arch/arm/mach-rk29/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_PM) += pm.o
 obj-$(CONFIG_CPU_FREQ) += cpufreq.o
 obj-$(CONFIG_DDR_FREQ) += ddrfreq.o
 obj-$(CONFIG_RK29_VPU) += vpu_mem.o
+obj-$(CONFIG_RK29_I2C_INSRAM) += i2c_sram.o
 obj-y += spi_sram.o
 obj-$(CONFIG_RK29_VPU_SERVICE) += vpu_service.o
 obj-$(CONFIG_RK29_VPU_OLD) += vpu.o
diff --git a/arch/arm/mach-rk29/include/mach/rk29_iomap.h b/arch/arm/mach-rk29/include/mach/rk29_iomap.h
index b81c2cba6aa7..eb7cbb9a6361 100755
--- a/arch/arm/mach-rk29/include/mach/rk29_iomap.h
+++ b/arch/arm/mach-rk29/include/mach/rk29_iomap.h
@@ -170,10 +170,13 @@
 #define RK29_PWM_PHYS               0x20050000
 #define RK29_PWM_SIZE               SZ_16K
 #define RK29_I2C1_PHYS              0x20054000
+#define RK29_I2C1_BASE              (RK29_ADDR_BASE1+0x54000)
 #define RK29_I2C1_SIZE              SZ_16K
 #define RK29_I2C2_PHYS              0x20058000
+#define RK29_I2C2_BASE              (RK29_ADDR_BASE1+0x58000)
 #define RK29_I2C2_SIZE              SZ_16K
 #define RK29_I2C3_PHYS              0x2005C000
+#define RK29_I2C3_BASE              (RK29_ADDR_BASE1+0x5c000)
 #define RK29_I2C3_SIZE              SZ_16K
 #define RK29_UART1_PHYS             0x20060000
 #define RK29_UART1_BASE             (RK29_ADDR_BASE1+0x60000)
diff --git a/arch/arm/mach-rk29/io.c b/arch/arm/mach-rk29/io.c
index 23b80c7b8d83..122d8c674c57 100644
--- a/arch/arm/mach-rk29/io.c
+++ b/arch/arm/mach-rk29/io.c
@@ -52,6 +52,9 @@ static struct map_desc rk29_io_desc[] __initdata = {
 	RK29_DEVICE(NANDC),
 	RK29_DEVICE(SPI0),
 	RK29_DEVICE(SPI1),
+	RK29_DEVICE(I2C1),
+	RK29_DEVICE(I2C2),
+	RK29_DEVICE(I2C3),
 #ifdef CONFIG_DDR_RECONFIG
 	RK29_DEVICE(LCDC),
 	RK29_DEVICE(GPU),
-- 
2.34.1