From 80c4c5964fe35872d601d5d77e86f14b183f5bb9 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Sat, 14 Sep 2013 14:02:47 +0530 Subject: [PATCH] arm: exynos: Add methods to control power to USB 3.0 PHY Adding methods to turn on/off power to USB3.0 type PHY as and when required by the controller. Signed-off-by: Vivek Gautam Cc: Julius Werner Cc: Simon Glass Cc: Minkyu Kang Cc: Dan Murphy Cc: Marek Vasut --- arch/arm/cpu/armv7/exynos/power.c | 22 ++++++++++++++++++++++ arch/arm/include/asm/arch-exynos/power.h | 5 +++++ 2 files changed, 27 insertions(+) diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c index 517e804f34..563abd750f 100644 --- a/arch/arm/cpu/armv7/exynos/power.c +++ b/arch/arm/cpu/armv7/exynos/power.c @@ -59,6 +59,28 @@ void set_usbhost_phy_ctrl(unsigned int enable) exynos5_set_usbhost_phy_ctrl(enable); } +static void exynos5_set_usbdrd_phy_ctrl(unsigned int enable) +{ + struct exynos5_power *power = + (struct exynos5_power *)samsung_get_base_power(); + + if (enable) { + /* Enabling USBDRD_PHY */ + setbits_le32(&power->usbdrd_phy_control, + POWER_USB_DRD_PHY_CTRL_EN); + } else { + /* Disabling USBDRD_PHY */ + clrbits_le32(&power->usbdrd_phy_control, + POWER_USB_DRD_PHY_CTRL_EN); + } +} + +void set_usbdrd_phy_ctrl(unsigned int enable) +{ + if (cpu_is_exynos5()) + exynos5_set_usbdrd_phy_ctrl(enable); +} + static void exynos5_dp_phy_control(unsigned int enable) { unsigned int cfg; diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h index 3241327016..8db18c545c 100644 --- a/arch/arm/include/asm/arch-exynos/power.h +++ b/arch/arm/include/asm/arch-exynos/power.h @@ -847,6 +847,11 @@ void set_hw_thermal_trip(void); #define POWER_USB_HOST_PHY_CTRL_EN (1 << 0) #define POWER_USB_HOST_PHY_CTRL_DISABLE (0 << 0) +void set_usbdrd_phy_ctrl(unsigned int enable); + +#define POWER_USB_DRD_PHY_CTRL_EN (1 << 0) +#define POWER_USB_DRD_PHY_CTRL_DISABLE (0 << 0) + void set_dp_phy_ctrl(unsigned int enable); #define EXYNOS_DP_PHY_ENABLE (1 << 0) -- 2.30.2