From f5c30c1b1c69b235f28d34f8ee1670b2028152ff Mon Sep 17 00:00:00 2001
From: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
Date: Tue, 16 Sep 2014 17:51:09 +0200
Subject: [PATCH] omap3: overo: Add usb host support

Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
---
 board/overo/overo.c           | 34 ++++++++++++++++++++++++++++++++++
 include/configs/omap3_overo.h |  8 ++++++++
 2 files changed, 42 insertions(+)

diff --git a/board/overo/overo.c b/board/overo/overo.c
index 488246bcc5..66146eead5 100644
--- a/board/overo/overo.c
+++ b/board/overo/overo.c
@@ -25,6 +25,11 @@
 #include <asm/mach-types.h>
 #include "overo.h"
 
+#ifdef CONFIG_USB_EHCI
+#include <usb.h>
+#include <asm/ehci-omap.h>
+#endif
+
 DECLARE_GLOBAL_DATA_PTR;
 
 #define TWL4030_I2C_BUS			0
@@ -474,3 +479,32 @@ int board_mmc_init(bd_t *bis)
 	return omap_mmc_init(0, 0, 0, -1, -1);
 }
 #endif
+
+#if defined(CONFIG_USB_EHCI) &&  !defined(CONFIG_SPL_BUILD)
+static struct omap_usbhs_board_data usbhs_bdata = {
+	.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
+	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
+	.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
+};
+
+#define GUMSTIX_GPIO_USBH_CPEN		168
+int ehci_hcd_init(int index, enum usb_init_type init,
+		  struct ehci_hccr **hccr, struct ehci_hcor **hcor)
+{
+	/* Enable USB power */
+	if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen"))
+		gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1);
+
+	return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
+}
+
+int ehci_hcd_stop(void)
+{
+	/* Disable USB power */
+	gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0);
+	gpio_free(GUMSTIX_GPIO_USBH_CPEN);
+
+	return omap_ehci_hcd_stop();
+}
+
+#endif /* CONFIG_USB_EHCI */
diff --git a/include/configs/omap3_overo.h b/include/configs/omap3_overo.h
index d042eea1b0..c58636a541 100644
--- a/include/configs/omap3_overo.h
+++ b/include/configs/omap3_overo.h
@@ -35,6 +35,13 @@
 /* TWL4030 LED */
 #define CONFIG_TWL4030_LED
 
+/* USB EHCI */
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_OMAP
+#define CONFIG_USB_STORAGE
+#define CONFIG_OMAP_EHCI_PHY1_RESET_GPIO	183
+#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS	3
+
 /* Initialize GPIOs by default */
 #define CONFIG_OMAP3_GPIO_2	/* GPIO32..63 is in GPIO Bank 2 */
 #define CONFIG_OMAP3_GPIO_3	/* GPIO64..95 is in GPIO Bank 3 */
@@ -44,6 +51,7 @@
 
 /* commands to include */
 #define CONFIG_CMD_CACHE
+#define CONFIG_CMD_USB
 #undef CONFIG_CMD_FPGA		/* FPGA configuration Support	*/
 #undef CONFIG_CMD_IMI		/* iminfo			*/
 #undef CONFIG_CMD_NFS		/* NFS support			*/
-- 
2.39.5