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ARM: tegra: fix colibri_t20 asix reset

PATCH New Marcel Ziswiler 2 participants 2 messages Mar 26, 2015

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Marcel Ziswiler

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PATCH v2 1/1 ARM: tegra: fix colibri_t20 asix reset

Fix ASIX USB to Ethernet chip reset.

Signed-off-by Marcel Ziswiler <[email protected]>

---
Changes in v2:
- added my previously missing signed-off-by

 board/toradex/colibri_t20/colibri_t20.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
board/toradex/colibri_t20/colibri_t20.c +8 -1
index 4656094..5d8bdec 100644
@@ -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
Signature · 1 line
1.9.3