[U-Boot] [PATCH v3 2/3] arm: odroid: enable/disable usb host phy for exynos4412

Suriyan Ramasami
2014-10-29T16:22:42Z

Enable/disable the usb host phy on the odroid U/X2 boards which are based
on the Exynos4412 SOC.

Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>

---

Changes in v3:
* Minkyu - do not mix cpu_is... and proid_is...

Changes in v2:
* Jaehoon - separate this patch out

Changes in v1:
* First try

arch/arm/cpu/armv7/exynos/power.c | 27 +++++++++++++++++++++++++++
arch/arm/include/asm/arch-exynos/power.h | 7 +++++++
2 files changed, 34 insertions(+)

diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c
index e1ab3d6..1520d64 100644
--- a/arch/arm/cpu/armv7/exynos/power.c
+++ b/arch/arm/cpu/armv7/exynos/power.c
@@ -53,10 +53,37 @@ void exynos5_set_usbhost_phy_ctrl(unsigned int enable)
}
}

+void exynos4412_set_usbhost_phy_ctrl(unsigned int enable)
+{
+ struct exynos4412_power *power =
+ (struct exynos4412_power *)samsung_get_base_power();
+
+ if (enable) {
+ /* Enabling USBHOST_PHY */
+ setbits_le32(&power->usbhost_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ setbits_le32(&power->hsic1_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ setbits_le32(&power->hsic2_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ } else {
+ /* Disabling USBHOST_PHY */
+ clrbits_le32(&power->usbhost_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ clrbits_le32(&power->hsic1_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ clrbits_le32(&power->hsic2_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ }
+}
+
void set_usbhost_phy_ctrl(unsigned int enable)
{
if (cpu_is_exynos5())
exynos5_set_usbhost_phy_ctrl(enable);
+ else if (cpu_is_exynos4())
+ if (proid_is_exynos4412())
+ exynos4412_set_usbhost_phy_ctrl(enable);
}

static void exynos5_set_usbdrd_phy_ctrl(unsigned int enable)
diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h
index e8a98a5..3f97b31 100644
--- a/arch/arm/include/asm/arch-exynos/power.h
+++ b/arch/arm/include/asm/arch-exynos/power.h
@@ -210,6 +210,13 @@ struct exynos4_power {
unsigned int gps_alive_option;
};

+struct exynos4412_power {
+ unsigned char res1[0x0704];
+ unsigned int usbhost_phy_control;
+ unsigned int hsic1_phy_control;
+ unsigned int hsic2_phy_control;
+};
+
struct exynos5_power {
unsigned int om_stat;
unsigned char res1[0x18];
--
1.9.1