The controller has 3 ports. The port0 is for USB 2.0 Phy, port1 and port2
are for HSIC phys. The usb 2.0 phy is already being setup. This patch
sets up the hsic phys.
Signed-off-by: Inderpal Singh <inderpal.si...@linaro.org>
---
arch/arm/include/asm/arch-exynos/ehci.h | 14 +++++++++++
drivers/usb/host/ehci-exynos.c | 39 +++++++++++++++++++++++++++++++
2 files changed, 53 insertions(+)
diff --git a/arch/arm/include/asm/arch-exynos/ehci.h
b/arch/arm/include/asm/arch-exynos/ehci.h
index d79f25c..d2d70bd 100644
--- a/arch/arm/include/asm/arch-exynos/ehci.h
+++ b/arch/arm/include/asm/arch-exynos/ehci.h
@@ -29,6 +29,20 @@
#define EHCICTRL_ENAINCR8 (1 << 27)
#define EHCICTRL_ENAINCR16 (1 << 26)
+#define HSIC_CTRL_REFCLKSEL (0x2)
+#define HSIC_CTRL_REFCLKSEL_MASK (0x3)
+#define HSIC_CTRL_REFCLKSEL_SHIFT (23)
+
+#define HSIC_CTRL_REFCLKDIV_12 (0x24)
+#define HSIC_CTRL_REFCLKDIV_MASK (0x7f)
+#define HSIC_CTRL_REFCLKDIV_SHIFT (16)
+
+#define HSIC_CTRL_SIDDQ (0x1 << 6)
+#define HSIC_CTRL_FORCESLEEP (0x1 << 5)
+#define HSIC_CTRL_FORCESUSPEND (0x1 << 4)
+#define HSIC_CTRL_UTMISWRST (0x1 << 2)
+#define HSIC_CTRL_PHYSWRST (0x1 << 0)
+
/* Register map for PHY control */
struct exynos_usb_phy {
unsigned int usbphyctrl0;
diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
index 155677e..50fbf36 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -83,6 +83,8 @@ 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);
@@ -107,6 +109,32 @@ 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 */
@@ -120,6 +148,8 @@ 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 |
@@ -128,6 +158,15 @@ 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);
}
--
1.7.9.5
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
