From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Date: Thu, 12 Sep 2019 09:12:56 +0000 (+0200)
Subject: colibri_t30: disable rs232 serial transceiver forceoff pins
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=1b56cd868e3c691625aa9bce2f475fcd4cf0405a;p=u-boot.git

colibri_t30: disable rs232 serial transceiver forceoff pins

Use gpio_early_init_uart() function to disable RS232 serial transceiver
ForceOFF# pins on Iris.

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

diff --git a/board/toradex/colibri_t30/colibri_t30.c b/board/toradex/colibri_t30/colibri_t30.c
index c5562f6d57..20cbb75a36 100644
--- a/board/toradex/colibri_t30/colibri_t30.c
+++ b/board/toradex/colibri_t30/colibri_t30.c
@@ -57,6 +57,17 @@ void pinmux_init(void)
 				   ARRAY_SIZE(colibri_t30_padctrl));
 }
 
+/*
+ * Disable RS232 serial transceiver ForceOFF# pins on Iris
+ */
+void gpio_early_init_uart(void)
+{
+	gpio_request(TEGRA_GPIO(X, 6), "Force OFF# X13");
+	gpio_direction_output(TEGRA_GPIO(X, 6), 1);
+	gpio_request(TEGRA_GPIO(X, 7), "Force OFF# X14");
+	gpio_direction_output(TEGRA_GPIO(X, 7), 1);
+}
+
 /*
  * Enable AX88772B USB to LAN controller
  */