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[PATCH 4.10 038/129] ARM: dts: sun7i: lamobo-r1: Fix CPU port RGMII settings

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  [PATCH 4.10 038/129] ARM: dts: sun7i: lamobo-r1: Fix CPU port RGMII settings Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:50 +0200

#1639778 — [PATCH 4.10 038/129] ARM: dts: sun7i: lamobo-r1: Fix CPU port RGMII settings

4.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Florian Fainelli <f.fainelli@gmail.com>

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>

---
 arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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;

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