From: Florian Fainelli <f.fainelli@gmail.com>
Date: Sun, 19 Mar 2017 04:53:20 +0000 (-0700)
Subject: ARM: dts: sun7i: lamobo-r1: Fix CPU port RGMII settings
X-Git-Tag: v4.10.16~90
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed65aff890b94ff646f0f99041b17e7b90dc5b5a;p=thirdparty%2Fkernel%2Fstable.git

ARM: dts: sun7i: lamobo-r1: Fix CPU port RGMII settings

commit 0cdefd5b5485ee6eb3512a75739d09a4090176ed upstream.

The CPU port of the BCM53125 is configured with RGMII (no delays) but
this should actually be RGMII with transmit delay (rgmii-txid) because
STMMAC takes care of inserting the transmitter delay. This fixes
occasional packet loss encountered.

Fixes: d7b9eaff5f0c ("ARM: dts: sun7i: Add BCM53125 switch nodes to the lamobo-r1 board")
Reported-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts b/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
index 73c05dab0a693..e00539ae1b8a4 100644
--- a/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
+++ b/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
@@ -167,7 +167,7 @@
 					reg = <8>;
 					label = "cpu";
 					ethernet = <&gmac>;
-					phy-mode = "rgmii";
+					phy-mode = "rgmii-txid";
 					fixed-link {
 						speed = <1000>;
 						full-duplex;