ARM: tegra: fix colibri_t20 asix reset

Fix ASIX USB to Ethernet chip reset.

Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

diff --git a/board/toradex/colibri_t20/colibri_t20.c b/board/toradex/colibri_t20/colibri_t20.c
index 46560948a6443e47f4674bde52336b2af90d6fd0..5d8bdecb8e1b6f5abc629b73ada19816d6f69f80 100644 (file)
--- a/board/toradex/colibri_t20/colibri_t20.c
+++ b/board/toradex/colibri_t20/colibri_t20.c
@@ -46,7 +46,14 @@ void pin_mux_usb(void)
        /* VBus GPIO */
        pinmux_tristate_disable(PMUX_PINGRP_DTE);
 
-       /* USB 1 aka Tegra USB port 3 VBus */
+       /* Reset ASIX using LAN_RESET */
+       gpio_request(GPIO_PV4, "LAN_RESET");
+       gpio_direction_output(GPIO_PV4, 0);
+       pinmux_tristate_disable(PMUX_PINGRP_GPV);
+       udelay(5);
+       gpio_set_value(GPIO_PV4, 1);
+
+       /* USBH_PEN: USB 1 aka Tegra USB port 3 VBus */
        pinmux_tristate_disable(PMUX_PINGRP_SPIG);
 }
 #endif