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ARM: tegra: TrimSlice: add support for USB1 port

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TrimSlice's USB1 port has two purposes; it either acts as a device port
hosting Tegra's USB recovery protocol, or acts as a host port connected
to the internal USB->SATA bridge chip, which may in turn be connected to
an SSD or HDD. Add the appropriate device tree and board configuration
options to enable this port as a host port, and route the port to the
SATA bridge using the VBUS GPIO.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Stephen Warren 2012-11-01 12:14:37 +00:00 committed by Tom Warren
parent 4576c6e6f8
commit 7155dc97f6
3 changed files with 11 additions and 1 deletions
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3
board/compulab/dts/tegra20-trimslice.dts
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@ -8,6 +8,7 @@
aliases {
usb0 = "/usb@c5008000";
usb1 = "/usb@c5000000";
};
memory {
@ -48,7 +49,7 @@
};
usb@c5000000 {
status = "disabled";
nvidia,vbus-gpio = <&gpio 170 0>; /* PV2 */
};
usb@c5004000 {

8
board/compulab/trimslice/trimslice.c
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@ -34,6 +34,14 @@
#include <mmc.h>
#endif
void pin_mux_usb(void)
{
/*
* USB1 internal/external mux GPIO, which masquerades as a VBUS GPIO
* in the current device tree.
*/
pinmux_tristate_disable(PINGRP_UAC);
}
void pin_mux_spi(void)
{

1
include/configs/trimslice.h
View File

@ -80,6 +80,7 @@
#define CONFIG_ENV_OFFSET (512 * 1024)
/* USB Host support */
#define CONFIG_USB_MAX_CONTROLLER_COUNT 3
#define CONFIG_USB_EHCI
#define CONFIG_USB_EHCI_TEGRA
#define CONFIG_USB_STORAGE