Add support for USB ULPI (external) PHY for P101x platforms
- for both USB Host and Peripheral modes
Signed-off-by: Ramneek Mehresh <ramneek.mehr...@freescale.com>
---
Changes for v1:
- removing the usage of variable temp
Applies on git://git.am.freescale.net/mirrors/linux-2.6.git
(branch master)
drivers/usb/gadget/fsl_udc_core.c | 6 ++++++
drivers/usb/gadget/fsl_usb2_udc.h | 1 +
drivers/usb/host/ehci-fsl.c | 5 +++++
drivers/usb/host/ehci-fsl.h | 1 +
4 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/gadget/fsl_udc_core.c
b/drivers/usb/gadget/fsl_udc_core.c
index c669600..4f7578a 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -189,6 +189,12 @@ static int dr_controller_setup(struct fsl_udc *udc)
portctrl &= ~(PORTSCX_PHY_TYPE_SEL | PORTSCX_PORT_WIDTH);
switch (udc->phy_mode) {
case FSL_USB2_PHY_ULPI:
+#ifdef CONFIG_PPC_85xx
+ ctrl = __raw_readl(&usb_sys_regs->control);
+ ctrl &= ~USB_CTRL_UTMI_PHY_EN;
+ ctrl |= USB_CTRL_ULPI_PHY_CLK_SEL;
+ __raw_writel(ctrl, &usb_sys_regs->control);
+#endif
portctrl |= PORTSCX_PTS_ULPI;
break;
case FSL_USB2_PHY_UTMI_WIDE:
diff --git a/drivers/usb/gadget/fsl_usb2_udc.h
b/drivers/usb/gadget/fsl_usb2_udc.h
index d489c62..78e55ba 100644
--- a/drivers/usb/gadget/fsl_usb2_udc.h
+++ b/drivers/usb/gadget/fsl_usb2_udc.h
@@ -365,6 +365,7 @@ struct usb_sys_interface {
#define USB_CTRL_ULPI_INT0EN 0x00000001
#define USB_CTRL_UTMI_PHY_EN 0x00000200
#define USB_CTRL_USB_EN 0x00000004
+#define USB_CTRL_ULPI_PHY_CLK_SEL 0x00000400
/* Endpoint Queue Head data struct
* Rem: all the variables of qh are LittleEndian Mode
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 55f4ab5..d698ac8 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -190,6 +190,11 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci,
portsc &= ~(PORT_PTS_MSK | PORT_PTS_PTW);
switch (phy_mode) {
case FSL_USB2_PHY_ULPI:
+#ifdef CONFIG_PPC_85xx
+ out_be32(non_ehci + FSL_SOC_USB_CTRL,
+ in_be32(non_ehci + FSL_SOC_USB_CTRL) |
+ USB_CTRL_USB_EN | ULPI_PHY_CLK_SEL);
+#endif
portsc |= PORT_PTS_ULPI;
break;
case FSL_USB2_PHY_SERIAL:
diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h
index 06a94e9..6ed589c 100644
--- a/drivers/usb/host/ehci-fsl.h
+++ b/drivers/usb/host/ehci-fsl.h
@@ -52,4 +52,5 @@
#define OTG_PORT (1<<5)
#define PLL_RESET (1<<8)
#define UTMI_PHY_EN (1<<9)
+#define ULPI_PHY_CLK_SEL (1<<10)
#endif /* _EHCI_FSL_H */
--
1.6.1
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