@@ -41,6 +41,9 @@
#include "hsmmc.h"
#include "control.h"
+#define GPIO_HUB_POWER 1
+#define GPIO_HUB_NRESET 62
+
static struct gpio_led gpio_leds[] = {
{
.name = "pandaboard::status1",
@@ -78,6 +81,56 @@ static void __init omap4_panda_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 void __init omap4_ehci_init(void)
+{
+ int ret;
+
+
+ /* disable the power to the usb hub prior to init */
+ ret = gpio_request(GPIO_HUB_POWER, "hub_power");
+ if (ret) {
+ pr_err("Cannot request GPIO %d\n", GPIO_HUB_POWER);
+ goto error1;
+ }
+ gpio_export(GPIO_HUB_POWER, 0);
+ gpio_direction_output(GPIO_HUB_POWER, 0);
+ gpio_set_value(GPIO_HUB_POWER, 0);
+
+ /* reset phy+hub */
+ ret = gpio_request(GPIO_HUB_NRESET, "hub_nreset");
+ if (ret) {
+ pr_err("Cannot request GPIO %d\n", GPIO_HUB_NRESET);
+ goto error2;
+ }
+ gpio_export(GPIO_HUB_NRESET, 0);
+ gpio_direction_output(GPIO_HUB_NRESET, 0);
+ gpio_set_value(GPIO_HUB_NRESET, 0);
+ gpio_set_value(GPIO_HUB_NRESET, 1);
+
+ usb_ehci_init(&ehci_pdata);
+
+ /* enable power to hub */
+ gpio_set_value(GPIO_HUB_POWER, 1);
+ return;
+
+error2:
+ gpio_free(GPIO_HUB_POWER);
+error1:
+ pr_err("Unable to initialize EHCI power/reset\n");
+ return;
+
+}
+
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_UTMI,
.mode = MUSB_PERIPHERAL,
@@ -314,6 +367,7 @@ static void __init omap4_panda_init(void)
omap4_twl6030_hsmmc_init(mmc);
/* OMAP4 Panda uses internal transceiver so register nop transceiver */
usb_nop_xceiv_register();
+ omap4_ehci_init();
/* FIXME: allow multi-omap to boot until musb is updated for omap4 */
if (!cpu_is_omap44xx())
usb_musb_init(&musb_board_data);