From b6b3733a0b5983726be3f7b626ee225f9ed4e93f Mon Sep 17 00:00:00 2001
From: kfx <kfx@rock-chips.com>
Date: Mon, 22 Jul 2013 14:36:14 +0800
Subject: [PATCH] add config 'emmc io domain voltage select 3.3v'

---
 arch/arm/mach-rk30/common.c | 3 +++
 arch/arm/plat-rk/Kconfig    | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/arch/arm/mach-rk30/common.c b/arch/arm/mach-rk30/common.c
index 68a0c5f8f666..5909a8d962ab 100755
--- a/arch/arm/mach-rk30/common.c
+++ b/arch/arm/mach-rk30/common.c
@@ -220,6 +220,9 @@ void __init rk30_map_io(void)
 	clk_disable_unused();
 	rk30_iomux_init();
 	rk30_boot_mode_init();
+#if defined(CONFIG_EMMC_IO_3_3V)
+	grf_set_io_power_domain_voltage(IO_PD_FLASH, IO_PD_VOLTAGE_3_3V);
+#endif
 }
 
 static __init u32 rk30_get_ddr_size(void)
diff --git a/arch/arm/plat-rk/Kconfig b/arch/arm/plat-rk/Kconfig
index d1c534537120..07d0400de902 100755
--- a/arch/arm/plat-rk/Kconfig
+++ b/arch/arm/plat-rk/Kconfig
@@ -82,6 +82,10 @@ config DDR_TYPE_DDR3_DEFAULT
 
 endchoice
 
+config EMMC_IO_3_3V
+	bool "Emmc io domain voltage select 3.3v"
+	depends on ARCH_RK3066B || ARCH_RK3188
+
 config DDR_INIT_CHANGE_FREQ
 	bool "Enable change DDR frequence when ddr_init"
 	default y if ARCH_RK2928 || ARCH_RK30XX
-- 
2.34.1