ARM: tegra: enable USB device mode and UMS on some boards

For each of Jetson TK1, Venice2, and Beaver:

- Enable the first USB controller in DT, and describe its configuration.

- Enable USB device/gadget support. This allows the user to type e.g.
  "ums 0 mmc 0" at the command-line to cause U-Boot to act a USB device
  implementing the USB Mass Storage protocol, and expose MMC device 0
  that way.

This allows a host PC to mount the Tegra device's MMC, partition it, and
install a filesystem on it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

arch/arm/dts/tegra124-jetson-tk1.dts

@@ -17,7 +17,8 @@
 		sdhci1 = "/sdhci@700b0400";
 		spi0 = "/spi@7000d400";
 		spi1 = "/spi@7000da00";
-		usb0 = "/usb@7d008000";
+		usb0 = "/usb@7d000000";
+		usb1 = "/usb@7d008000";
 	};
 
 	memory {
@@ -77,6 +78,12 @@
 		bus-width = <8>;
 	};
 
+	usb@7d000000 {
+		status = "okay";
+		dr_mode = "otg";
+		nvidia,vbus-gpio = <&gpio 108 0>; /* gpio PN4, USB_VBUS_EN0 */
+	};
+
 	usb@7d008000 {
 		status = "okay";
 		nvidia,vbus-gpio = <&gpio 109 0>; /* gpio PN5, USB_VBUS_EN1 */

arch/arm/dts/tegra124-venice2.dts

@@ -17,7 +17,8 @@
 		sdhci1 = "/sdhci@700b0400";
 		spi0 = "/spi@7000d400";
 		spi1 = "/spi@7000da00";
-		usb0 = "/usb@7d008000";
+		usb0 = "/usb@7d000000";
+		usb1 = "/usb@7d008000";
 	};
 
 	memory {
@@ -77,6 +78,12 @@
 		bus-width = <8>;
 	};
 
+	usb@7d000000 {
+		status = "okay";
+		dr_mode = "otg";
+		nvidia,vbus-gpio = <&gpio 108 0>; /* gpio PN4, USB_VBUS_EN0 */
+	};
+
 	usb@7d008000 {
 		status = "okay";
 		nvidia,vbus-gpio = <&gpio 109 0>; /* gpio PN5, USB_VBUS_EN1 */

arch/arm/dts/tegra30-beaver.dts

@@ -14,7 +14,8 @@
 		i2c4 = "/i2c@7000c700";
 		sdhci0 = "/sdhci@78000600";
 		sdhci1 = "/sdhci@78000000";
-		usb0 = "/usb@7d008000";
+		usb0 = "/usb@7d000000";
+		usb1 = "/usb@7d008000";
 	};
 
 	memory {
@@ -70,6 +71,12 @@
 		bus-width = <8>;
 	};
 
+	usb@7d000000 {
+		status = "okay";
+		dr_mode = "otg";
+		nvidia,vbus-gpio = <&gpio 238 0>; /* gpio DD6, PEX_L1_CLKREQ */
+	};
+
 	usb@7d008000 {
 		nvidia,vbus-gpio = <&gpio 236 0>; /* PDD4 */
 		status = "okay";

include/configs/beaver.h

@@ -76,6 +76,7 @@
 /* USB Host support */
 #define CONFIG_USB_EHCI
 #define CONFIG_USB_EHCI_TEGRA
+#define CONFIG_USB_MAX_CONTROLLER_COUNT	2
 #define CONFIG_USB_STORAGE
 #define CONFIG_CMD_USB
 
@@ -87,6 +88,7 @@
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP
 
+#include "tegra-common-ums.h"
 #include "tegra-common-post.h"
 
 #endif /* __CONFIG_H */

include/configs/jetson-tk1.h

@@ -63,6 +63,7 @@
 /* USB Host support */
 #define CONFIG_USB_EHCI
 #define CONFIG_USB_EHCI_TEGRA
+#define CONFIG_USB_MAX_CONTROLLER_COUNT	2
 #define CONFIG_USB_STORAGE
 #define CONFIG_CMD_USB
 
@@ -74,6 +75,7 @@
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP
 
+#include "tegra-common-ums.h"
 #include "tegra-common-post.h"
 
 #endif /* __CONFIG_H */

include/configs/tegra-common-ums.h

@@ -0,0 +1,26 @@
+/*
+ * (C) Copyright 2014
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0
+ */
+
+#ifndef _TEGRA_COMMON_UMS_H_
+#define _TEGRA_COMMON_UMS_H
+
+#ifndef CONFIG_SPL_BUILD
+/* USB gadget, and mass storage protocol */
+#define CONFIG_USB_GADGET
+#define CONFIG_USB_GADGET_VBUS_DRAW    2
+#define CONFIG_CI_UDC
+#define CONFIG_CI_UDC_HAS_HOSTPC
+#define CONFIG_USB_GADGET_DUALSPEED
+#define CONFIG_G_DNL_VENDOR_NUM 0x0955
+#define CONFIG_G_DNL_PRODUCT_NUM 0x701A
+#define CONFIG_G_DNL_MANUFACTURER "NVIDIA"
+#define CONFIG_USBDOWNLOAD_GADGET
+#define CONFIG_USB_GADGET_MASS_STORAGE
+#define CONFIG_CMD_USB_MASS_STORAGE
+#endif
+
+#endif /* _TEGRA_COMMON_UMS_H */

include/configs/venice2.h

@@ -63,6 +63,7 @@
 /* USB Host support */
 #define CONFIG_USB_EHCI
 #define CONFIG_USB_EHCI_TEGRA
+#define CONFIG_USB_MAX_CONTROLLER_COUNT	2
 #define CONFIG_USB_STORAGE
 #define CONFIG_CMD_USB
 
@@ -74,6 +75,7 @@
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP
 
+#include "tegra-common-ums.h"
 #include "tegra-common-post.h"
 
 #endif /* __CONFIG_H */