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--- git.orig/arch/arm/mach-omap2/usb-ehci.c
+++ git/arch/arm/mach-omap2/usb-ehci.c
@@ -147,9 +147,11 @@ static void setup_ehci_io_mux(void)
void __init usb_ehci_init(void)
{
+#if 0 /* TODO: Setup Pin IO MUX for EHCI - moved this temporarily to U-boot */
/* Setup Pin IO MUX for EHCI */
if (cpu_is_omap34xx())
setup_ehci_io_mux();
+#endif
if (platform_device_register(&ehci_device) < 0) {
printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n");
Index: git/drivers/usb/host/ehci-omap.c
===================================================================
--- git.orig/drivers/usb/host/ehci-omap.c
+++ git/drivers/usb/host/ehci-omap.c
@@ -48,16 +48,25 @@
* to get the PHY state machine in working state
*/
#define EXTERNAL_PHY_RESET
+#ifdef CONFIG_MACH_OMAP3_TOUCHBOOK
+#define EXT_PHY_RESET_GPIO_PORT2 (147)
+#else
#define EXT_PHY_RESET_GPIO_PORT1 (57)
#define EXT_PHY_RESET_GPIO_PORT2 (61)
+#endif
#define EXT_PHY_RESET_DELAY (10)
+#define PHY_STP_PULLUP_ENABLE (0x10)
+#define PHY_STP_PULLUP_DISABLE (0x90)
+
/* ISSUE2:
* USBHOST supports External charge pump PHYs only
* Use the VBUS from Port1 to power VBUS of Port2 externally
* So use Port2 as the working ULPI port
*/
+#ifndef CONFIG_MACH_OMAP3_TOUCHBOOK
#define VBUS_INTERNAL_CHARGEPUMP_HACK
+#endif
#endif /* CONFIG_OMAP_EHCI_PHY_MODE */
@@ -225,14 +234,43 @@ static int omap_start_ehc(struct platfor
#ifdef EXTERNAL_PHY_RESET
/* Refer: ISSUE1 */
+#ifndef CONFIG_MACH_OMAP3_TOUCHBOOK
gpio_request(EXT_PHY_RESET_GPIO_PORT1, "USB1 PHY reset");
gpio_direction_output(EXT_PHY_RESET_GPIO_PORT1, 0);
+#endif
gpio_request(EXT_PHY_RESET_GPIO_PORT2, "USB2 PHY reset");
gpio_direction_output(EXT_PHY_RESET_GPIO_PORT2, 0);
+ gpio_set_value(EXT_PHY_RESET_GPIO_PORT2, 0);
/* Hold the PHY in RESET for enough time till DIR is high */
udelay(EXT_PHY_RESET_DELAY);
#endif
+ /*
+ * The PHY register 0x7 - Interface Control register is
+ * configured to disable the integrated STP pull-up resistor
+ * used for interface protection.
+ *
+ * May not need to be here.
+ */
+ omap_writel((0x7 << EHCI_INSNREG05_ULPI_REGADD_SHIFT) |/* interface reg */
+ (2 << EHCI_INSNREG05_ULPI_OPSEL_SHIFT) |/* Write */
+ (1 << EHCI_INSNREG05_ULPI_PORTSEL_SHIFT) |/* Port1 */
+ (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT) |/* Start */
+ (PHY_STP_PULLUP_DISABLE),
+ EHCI_INSNREG05_ULPI);
+
+ while (!(omap_readl(EHCI_INSNREG05_ULPI) & (1<<EHCI_INSNREG05_ULPI_CONTROL_SHIFT)));
+
+ /* Force PHY to HS */
+ omap_writel((0x4 << EHCI_INSNREG05_ULPI_REGADD_SHIFT) |/* function ctrl */
+ (2 << EHCI_INSNREG05_ULPI_OPSEL_SHIFT) |/* Write */
+ (1 << EHCI_INSNREG05_ULPI_PORTSEL_SHIFT) |/* Port1 */
+ (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT) |/* Start */
+ (0x40),
+ EHCI_INSNREG05_ULPI);
+
+ while (!(omap_readl(EHCI_INSNREG05_ULPI) & (1<<EHCI_INSNREG05_ULPI_CONTROL_SHIFT)));
+
/* Configure TLL for 60Mhz clk for ULPI */
ehci_clocks->usbtll_fck_clk = clk_get(&dev->dev, USBHOST_TLL_FCLK);
if (IS_ERR(ehci_clocks->usbtll_fck_clk))
@@ -307,7 +345,9 @@ static int omap_start_ehc(struct platfor
* Hold the PHY in RESET for enough time till PHY is settled and ready
*/
udelay(EXT_PHY_RESET_DELAY);
+#ifndef CONFIG_MACH_OMAP3_TOUCHBOOK
gpio_set_value(EXT_PHY_RESET_GPIO_PORT1, 1);
+#endif
gpio_set_value(EXT_PHY_RESET_GPIO_PORT2, 1);
#endif
@@ -393,7 +433,9 @@ static void omap_stop_ehc(struct platfor
#ifdef EXTERNAL_PHY_RESET
+#ifndef CONFIG_MACH_OMAP3_TOUCHBOOK
gpio_free(EXT_PHY_RESET_GPIO_PORT1);
+#endif
gpio_free(EXT_PHY_RESET_GPIO_PORT2);
#endif
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