ARM: tegra: TrimSlice: add support for USB1 port
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>
diff --git a/board/compulab/dts/tegra20-trimslice.dts b/board/compulab/dts/tegra20-trimslice.dts
index db79e77..4450674 100644
--- a/board/compulab/dts/tegra20-trimslice.dts
+++ b/board/compulab/dts/tegra20-trimslice.dts
@@ -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 {
diff --git a/board/compulab/trimslice/trimslice.c b/board/compulab/trimslice/trimslice.c
index 9ef66fd..8f4dd09 100644
--- a/board/compulab/trimslice/trimslice.c
+++ b/board/compulab/trimslice/trimslice.c
@@ -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)
{
diff --git a/include/configs/trimslice.h b/include/configs/trimslice.h
index eeb0dbe..165bc73 100644
--- a/include/configs/trimslice.h
+++ b/include/configs/trimslice.h
@@ -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