Add controller version based ULPI and UTMI phy initialization for
otg driver
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@xxxxxxxxxxxxx>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@xxxxxxxxxxxxx>
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@xxxxxxxxxxxxx>
Tested-by: Fleming Andrew-AFLEMING <AFLEMING@xxxxxxxxxxxxx>
---
drivers/usb/phy/phy-fsl-usb.c | 20 ++++++++++++++++++++
drivers/usb/phy/phy-fsl-usb.h | 7 +++++++
2 files changed, 27 insertions(+)
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 94eb292..f90093a 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -923,12 +923,32 @@ int usb_otg_start(struct platform_device *pdev)
temp &= ~(PORTSC_PHY_TYPE_SEL | PORTSC_PTW);
switch (pdata->phy_mode) {
case FSL_USB2_PHY_ULPI:
+ if (pdata->controller_ver) {
+ /* controller version 1.6 or above */
+ setbits32(&p_otg->dr_mem_map->control,
+ USB_CTRL_ULPI_PHY_CLK_SEL);
+ /*
+ * Due to controller issue of PHY_CLK_VALID in ULPI
+ * mode, we set USB_CTRL_USB_EN before checking
+ * PHY_CLK_VALID, otherwise PHY_CLK_VALID doesn't work.
+ */
+ clrsetbits_be32(&p_otg->dr_mem_map->control,
+ USB_CTRL_UTMI_PHY_EN, USB_CTRL_IOENB);
+ }
temp |= PORTSC_PTS_ULPI;
break;
case FSL_USB2_PHY_UTMI_WIDE:
temp |= PORTSC_PTW_16BIT;
/* fall through */
case FSL_USB2_PHY_UTMI:
+ if (pdata->controller_ver) {
+ /* controller version 1.6 or above */
+ setbits32(&p_otg->dr_mem_map->control,
+ USB_CTRL_UTMI_PHY_EN);
+ /* Delay for UTMI PHY CLK to become stable - 10ms */
+ mdelay(FSL_UTMI_PHY_DLY);
+ }
+ setbits32(&p_otg->dr_mem_map->control, USB_CTRL_UTMI_PHY_EN);
temp |= PORTSC_PTS_UTMI;
/* fall through */
default:
diff --git a/drivers/usb/phy/phy-fsl-usb.h b/drivers/usb/phy/phy-fsl-usb.h
index 2314995..4a78fb3 100644
--- a/drivers/usb/phy/phy-fsl-usb.h
+++ b/drivers/usb/phy/phy-fsl-usb.h
@@ -199,6 +199,13 @@
/* control Register Bit Masks */
#define USB_CTRL_IOENB (0x1<<2)
#define USB_CTRL_ULPI_INT0EN (0x1<<0)
+#define USB_CTRL_WU_INT_EN (0x1<<1)
+#define USB_CTRL_LINE_STATE_FILTER__EN (0x1<<3)
+#define USB_CTRL_KEEP_OTG_ON (0x1<<4)
+#define USB_CTRL_OTG_PORT (0x1<<5)
+#define USB_CTRL_PLL_RESET (0x1<<8)
+#define USB_CTRL_UTMI_PHY_EN (0x1<<9)
+#define USB_CTRL_ULPI_PHY_CLK_SEL (0x1<<10)
/* BCSR5 */
#define BCSR5_INT_USB (0x02)
--
1.8.3.1
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