mx7dsabresd: Make 'ums' command functional

When running the 'ums' command we get:

=> ums 0 mmc 0
UMS: disk start sector: 0x0, count: 0xe18000
g_dnl_register: failed!, error: -22
ERROR: g_dnl_register failed
at common/cmd_usb_mass_storage.c:107/do_usb_mass_storage()

Fix this by initializing USB OTG1 port as USB device mode instead of host.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
diff --git a/board/freescale/mx7dsabresd/mx7dsabresd.c b/board/freescale/mx7dsabresd/mx7dsabresd.c
index 20e56f2..782acc6 100644
--- a/board/freescale/mx7dsabresd/mx7dsabresd.c
+++ b/board/freescale/mx7dsabresd/mx7dsabresd.c
@@ -23,6 +23,7 @@
 #include <i2c.h>
 #include <asm/imx-common/mxc_i2c.h>
 #include <asm/arch/crm_regs.h>
+#include <usb.h>
 #include <usb/ehci-fsl.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -111,6 +112,14 @@
 	MX7D_PAD_SD3_RESET_B__GPIO6_IO11 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 };
 
+static iomux_v3_cfg_t const usb_otg1_pads[] = {
+	MX7D_PAD_GPIO1_IO05__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usb_otg2_pads[] = {
+	MX7D_PAD_UART3_CTS_B__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
 #define IOX_SDI IMX_GPIO_NR(1, 9)
 #define IOX_STCP IMX_GPIO_NR(1, 12)
 #define IOX_SHCP IMX_GPIO_NR(1, 13)
@@ -511,6 +520,10 @@
 	setup_iomux_uart();
 
 	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+	imx_iomux_v3_setup_multiple_pads(usb_otg1_pads,
+					 ARRAY_SIZE(usb_otg1_pads));
+	imx_iomux_v3_setup_multiple_pads(usb_otg2_pads,
+					 ARRAY_SIZE(usb_otg2_pads));
 
 	return 0;
 }
@@ -602,29 +615,11 @@
 }
 
 #ifdef CONFIG_USB_EHCI_MX7
-static iomux_v3_cfg_t const usb_otg1_pads[] = {
-	MX7D_PAD_GPIO1_IO05__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
-};
-
-static iomux_v3_cfg_t const usb_otg2_pads[] = {
-	MX7D_PAD_UART3_CTS_B__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
-};
-
-int board_ehci_hcd_init(int port)
+int board_usb_phy_mode(int port)
 {
-	switch (port) {
-	case 0:
-		imx_iomux_v3_setup_multiple_pads(usb_otg1_pads,
-						 ARRAY_SIZE(usb_otg1_pads));
-		break;
-	case 1:
-		imx_iomux_v3_setup_multiple_pads(usb_otg2_pads,
-						 ARRAY_SIZE(usb_otg2_pads));
-		break;
-	default:
-		printf("MXC USB port %d not yet supported\n", port);
-		return -EINVAL;
-	}
-	return 0;
+	if (port == 0)
+		return USB_INIT_DEVICE;
+	else
+		return USB_INIT_HOST;
 }
 #endif