From 371a8dd6fa75ef3682bd8398c3e32b354d0e2677 Mon Sep 17 00:00:00 2001
From: Jaret Cantu <jaret.cantu@timesys.com>
Date: Wed, 14 Sep 2016 17:14:49 -0400
Subject: [PATCH] ARM: dts: imx: b650v3: Calibrate USB PHY to pass eye diagram
 test

Calibrate the USB PHY TX settings to pass the eye diagram signal
integrity test.  The settings are taken from the i.MX6 reference
manual's recommended configuration for USB certification (66.2.6).

Signed-off-by: Jaret Cantu <jaret.cantu@timesys.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---
 arch/arm/boot/dts/imx6q-b650v3.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/imx6q-b650v3.dts b/arch/arm/boot/dts/imx6q-b650v3.dts
index d85388725426..1dcaee23ed9c 100644
--- a/arch/arm/boot/dts/imx6q-b650v3.dts
+++ b/arch/arm/boot/dts/imx6q-b650v3.dts
@@ -98,3 +98,9 @@
 		line-name = "PCA9539-P05";
 	};
 };
+
+&usbphy1 {
+	fsl,tx-cal-45-dn-ohms = <55>;
+	fsl,tx-cal-45-dp-ohms = <55>;
+	fsl,tx-d-cal = <100>;
+};