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[U-Boot] ARM: tegra: fix colibri_t20 asix reset

Message ID 1427132610-21803-1-git-send-email-marcel@ziswiler.com
State Superseded
Delegated to: Tom Warren
Headers show

Commit Message

Marcel Ziswiler March 23, 2015, 5:43 p.m. UTC 
Fix ASIX USB to Ethernet chip reset.
---
 board/toradex/colibri_t20/colibri_t20.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
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Patch

diff --git a/board/toradex/colibri_t20/colibri_t20.c b/board/toradex/colibri_t20/colibri_t20.c
index 4656094..5d8bdec 100644
--- 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