ARM: imx6: Enable UMS and DFU on DHCOM i.MX6 PDK

Enable UMS and DFU, so that the eMMC can be accessed via the
USB gadget port on the board.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>

board/dhelectronics/dh_imx6/dh_imx6.c

@@ -252,17 +252,11 @@ static void setup_usb(void)
 }
 
 int board_usb_phy_mode(int port)
-{
-	return USB_INIT_HOST;
-}
-
-/* Use only Port 1 == DHCOM USB Host 1 */
-int board_ehci_hcd_init(int port)
 {
 	if (port == 1)
-		return 0;
+		return USB_INIT_HOST;
 	else
-		return -ENODEV;
+		return USB_INIT_DEVICE;
 }
 
 int board_ehci_power(int port, int on)

configs/dh_imx6_defconfig

@@ -19,6 +19,7 @@ CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_MEMTEST=y
 CONFIG_CMD_UNZIP=y
+CONFIG_CMD_DFU=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
@@ -27,6 +28,7 @@ CONFIG_CMD_PART=y
 CONFIG_CMD_SATA=y
 CONFIG_CMD_SF=y
 CONFIG_CMD_USB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
@@ -47,4 +49,10 @@ CONFIG_NETDEVICES=y
 CONFIG_FEC_MXC=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="dh"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0525
+CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
+CONFIG_CI_UDC=y
+CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_OF_LIBFDT=y

include/configs/dh_imx6.h

@@ -115,6 +115,18 @@
 #define CONFIG_MXC_USB_PORTSC		(PORT_PTS_UTMI | PORT_PTS_PTW)
 #define CONFIG_MXC_USB_FLAGS		0
 #define CONFIG_USB_MAX_CONTROLLER_COUNT	2 /* Enabled USB controller number */
+
+/* USB Gadget (DFU, UMS) */
+#if defined(CONFIG_CMD_DFU) || defined(CONFIG_CMD_USB_MASS_STORAGE)
+#define CONFIG_USB_FUNCTION_MASS_STORAGE
+
+#define CONFIG_SYS_DFU_DATA_BUF_SIZE	(16 * 1024 * 1024)
+#define DFU_DEFAULT_POLL_TIMEOUT	300
+
+/* USB IDs */
+#define CONFIG_G_DNL_UMS_VENDOR_NUM	0x0525
+#define CONFIG_G_DNL_UMS_PRODUCT_NUM	0xA4A5
+#endif
 #endif
 
 /* Watchdog */