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| author | Vivek Gautam <gautam.vivek@samsung.com> | 2013-09-14 14:02:47 +0530 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2013-10-20 23:42:38 +0200 |
| commit | 80c4c5964fe35872d601d5d77e86f14b183f5bb9 (patch) | |
| tree | 91d19894eb26985eb48bf9c0706e78626a4dec97 /arch | |
| parent | 13194f3b5f51d104bdfdd7ff5a7556136b6dc35c (diff) | |
| download | u-boot-imx-80c4c5964fe35872d601d5d77e86f14b183f5bb9.zip u-boot-imx-80c4c5964fe35872d601d5d77e86f14b183f5bb9.tar.gz u-boot-imx-80c4c5964fe35872d601d5d77e86f14b183f5bb9.tar.bz2 | |
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 <gautam.vivek@samsung.com>
Cc: Julius Werner <jwerner@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Marek Vasut <marex@denx.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/exynos/power.c | 22 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-exynos/power.h | 5 |
2 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c index 517e804..563abd7 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 3241327..8db18c5 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) |