omap4: 4430sdp: enable the ehci port on 4430SDP

The OMAP4 SDP has an SMSC3320 PHY hooked up to EHCI on Port1.
The PHY power is controlled by GPIO 157.

Turn on the PHY power, and register the controller at init.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index df5a425a49d1..d7cb9680b4fa 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -42,6 +42,7 @@
 #define ETH_KS8851_IRQ                  34
 #define ETH_KS8851_POWER_ON             48
 #define ETH_KS8851_QUART                138
+#define OMAP4SDP_MDM_PWR_EN_GPIO        157
 #define OMAP4_SFH7741_SENSOR_OUTPUT_GPIO        184
 #define OMAP4_SFH7741_ENABLE_GPIO               188
 
@@ -225,6 +226,16 @@ static void __init omap_4430sdp_init_irq(void)
         omap_gpio_init();
 }
 
+static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
+        .port_mode[0]   = EHCI_HCD_OMAP_MODE_PHY,
+        .port_mode[1]   = EHCI_HCD_OMAP_MODE_UNKNOWN,
+        .port_mode[2]   = EHCI_HCD_OMAP_MODE_UNKNOWN,
+        .phy_reset      = false,
+        .reset_gpio_port[0]  = -EINVAL,
+        .reset_gpio_port[1]  = -EINVAL,
+        .reset_gpio_port[2]  = -EINVAL,
+};
+
 static struct omap_musb_board_data musb_board_data = {
         .interface_type         = MUSB_INTERFACE_UTMI,
         .mode                   = MUSB_PERIPHERAL,
@@ -514,6 +525,15 @@ static void __init omap_4430sdp_init(void)
         platform_add_devices(sdp4430_devices, ARRAY_SIZE(sdp4430_devices));
         omap_serial_init();
         omap4_twl6030_hsmmc_init(mmc);
+
+        /* Power on the ULPI PHY */
+        if (gpio_is_valid(OMAP4SDP_MDM_PWR_EN_GPIO)) {
+                /* FIXME: Assumes pad is already muxed for GPIO mode */
+                gpio_request(OMAP4SDP_MDM_PWR_EN_GPIO, "USBB1 PHY VMDM_3V3");
+                gpio_direction_output(OMAP4SDP_MDM_PWR_EN_GPIO, 1);
+        }
+        usb_ehci_init(&ehci_pdata);
+
         /* OMAP4 SDP uses internal transceiver so register nop transceiver */
         usb_nop_xceiv_register();
         /* FIXME: allow multi-omap to boot until musb is updated for omap4 */