[U-Boot] [PATCH v4 17/20] tegra: usb: Add USB support to nvidia boards

[Simon Glass]

This adds basic USB support for port 0. The other port is not supported
yet.

Tegra2 (SeaBoard) # usb start
(Re)start USB...
USB:   Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 5 USB Device(s) found
       scanning bus for storage devices... 1 Storage Device(s) found
Tegra2 (SeaBoard) # ext2load usb 0:3 10000000 /boot/vmlinuz
Loading file "/boot/vmlinuz" from usb device 0:3 (ROOT-A)
2932976 bytes read

Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v2:
- Add setting of pinmux for USB VBUS GPIO

 board/nvidia/common/board.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c
index e8253a0..a7c566d 100644
--- a/board/nvidia/common/board.c
+++ b/board/nvidia/common/board.c
@@ -33,6 +33,7 @@
 #include <asm/arch/pinmux.h>
 #include <asm/arch/uart.h>
 #include <spi.h>
+#include <asm/arch/usb.h>
 #include "board.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -69,6 +70,13 @@ int board_init(void)
 	/* boot param addr */
 	gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
 
+#ifdef CONFIG_USB_EHCI_TEGRA
+	/* For USB GPIO PD0. for now, since we have no pinmux in fdt */
+	pinmux_tristate_disable(PINGRP_SLXK);
+
+	board_usb_init(gd->fdt_blob);
+#endif
+
 	return 0;
 }
 
-- 
1.7.7.3