From 54a60640bbadb40f4179e5ba7f0497c44a42ee41 Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Sat, 4 Oct 2014 19:40:19 +0200
Subject: ARM: tegra: beaver: enable PEX voltage rail

Supply for the PCIe PLL.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/boards/nvidia-beaver/board.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'arch/arm/boards/nvidia-beaver')

diff --git a/arch/arm/boards/nvidia-beaver/board.c b/arch/arm/boards/nvidia-beaver/board.c
index e67d2aa973..20707d883f 100644
--- a/arch/arm/boards/nvidia-beaver/board.c
+++ b/arch/arm/boards/nvidia-beaver/board.c
@@ -15,8 +15,10 @@
  */
 
 #include <common.h>
-#include <init.h>
+#include <dt-bindings/gpio/tegra-gpio.h>
+#include <gpio.h>
 #include <i2c/i2c.h>
+#include <init.h>
 
 static int nvidia_beaver_devices_init(void)
 {
@@ -33,6 +35,13 @@ static int nvidia_beaver_devices_init(void)
 	data = 0x65;
 	i2c_write_reg(&client, 0x32, &data, 1);
 
+	/* TPS659110: LDO1_REG = 1.05v, ACTIVE to PEX */
+	data = 0x15;
+	i2c_write_reg(&client, 0x30, &data, 1);
+
+	/* enable SYS_3V3_PEXS */
+	gpio_direction_output(TEGRA_GPIO(L, 7), 1);
+
 	return 0;
 }
 fs_initcall(nvidia_beaver_devices_init);
-- 
cgit v1.2.3