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path: root/drivers/usb
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-rw-r--r--drivers/usb/host/ehci-exynos.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
index 66b4de0..88e6466 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -88,6 +88,8 @@ static int exynos_usb_parse_dt(const void *blob, struct exynos_ehci *exynos)
/* Setup the EHCI host controller. */
static void setup_usb_phy(struct exynos_usb_phy *usb)
{
+ u32 hsic_ctrl;
+
set_usbhost_mode(USB20_PHY_CFG_HOST_LINK_EN);
set_usbhost_phy_ctrl(POWER_USB_HOST_PHY_CTRL_EN);
@@ -112,6 +114,32 @@ static void setup_usb_phy(struct exynos_usb_phy *usb)
clrbits_le32(&usb->usbphyctrl0,
HOST_CTRL0_LINKSWRST |
HOST_CTRL0_UTMISWRST);
+
+ /* HSIC Phy Setting */
+ hsic_ctrl = (HSIC_CTRL_FORCESUSPEND |
+ HSIC_CTRL_FORCESLEEP |
+ HSIC_CTRL_SIDDQ);
+
+ clrbits_le32(&usb->hsicphyctrl1, hsic_ctrl);
+ clrbits_le32(&usb->hsicphyctrl2, hsic_ctrl);
+
+ hsic_ctrl = (((HSIC_CTRL_REFCLKDIV_12 & HSIC_CTRL_REFCLKDIV_MASK)
+ << HSIC_CTRL_REFCLKDIV_SHIFT)
+ | ((HSIC_CTRL_REFCLKSEL & HSIC_CTRL_REFCLKSEL_MASK)
+ << HSIC_CTRL_REFCLKSEL_SHIFT)
+ | HSIC_CTRL_UTMISWRST);
+
+ setbits_le32(&usb->hsicphyctrl1, hsic_ctrl);
+ setbits_le32(&usb->hsicphyctrl2, hsic_ctrl);
+
+ udelay(10);
+
+ clrbits_le32(&usb->hsicphyctrl1, HSIC_CTRL_PHYSWRST |
+ HSIC_CTRL_UTMISWRST);
+
+ clrbits_le32(&usb->hsicphyctrl2, HSIC_CTRL_PHYSWRST |
+ HSIC_CTRL_UTMISWRST);
+
udelay(20);
/* EHCI Ctrl setting */
@@ -125,6 +153,8 @@ static void setup_usb_phy(struct exynos_usb_phy *usb)
/* Reset the EHCI host controller. */
static void reset_usb_phy(struct exynos_usb_phy *usb)
{
+ u32 hsic_ctrl;
+
/* HOST_PHY reset */
setbits_le32(&usb->usbphyctrl0,
HOST_CTRL0_PHYSWRST |
@@ -133,6 +163,15 @@ static void reset_usb_phy(struct exynos_usb_phy *usb)
HOST_CTRL0_FORCESUSPEND |
HOST_CTRL0_FORCESLEEP);
+ /* HSIC Phy reset */
+ hsic_ctrl = (HSIC_CTRL_FORCESUSPEND |
+ HSIC_CTRL_FORCESLEEP |
+ HSIC_CTRL_SIDDQ |
+ HSIC_CTRL_PHYSWRST);
+
+ setbits_le32(&usb->hsicphyctrl1, hsic_ctrl);
+ setbits_le32(&usb->hsicphyctrl2, hsic_ctrl);
+
set_usbhost_phy_ctrl(POWER_USB_HOST_PHY_CTRL_DISABLE);
}