From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 18 Jan 2016 15:39:33 +0000 (+0100)
Subject: ARM64: zcu102: Fix i2c gpio GT muxes description
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=24f938ba8dde1b13344087036fe71815a5ca0020;p=thirdparty%2Fu-boot.git

ARM64: zcu102: Fix i2c gpio GT muxes description

Add simple u-boot i2c command to know how to setup GPIO gt outputs.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

diff --git a/arch/arm/dts/zynqmp-zcu102.dts b/arch/arm/dts/zynqmp-zcu102.dts
index d5a17ba216a..3bb291c3b77 100644
--- a/arch/arm/dts/zynqmp-zcu102.dts
+++ b/arch/arm/dts/zynqmp-zcu102.dts
@@ -110,7 +110,13 @@
 	status = "okay";
 	clock-frequency = <400000>;
 
-	tca6416_u97: gpio@20 { /* FIXME enable it by i2c mw 20 6 1 */
+	tca6416_u97: gpio@20 {
+		/*
+		 * Enable all GTs to out from U-Boot
+		 * i2c mw 20 6 0  - setup IO to output
+		 * i2c mw 20 2 ef - setup output values on pins 0-7
+		 * i2c mw 20 3 ff - setup output values on pins 10-17
+		 */
 		compatible = "ti,tca6416";
 		reg = <0x20>;
 		gpio-controller;