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Subject[PATCH v2 4/4] arm64: allwinner: a64: disable the RTL8211E internal RX delay on Pine64+
Date
Some Pine64+ boards have a broken RTL8211E PHY, which cannot work
reliably in 1000Base-T mode with default configuration.

A solution is passed to Pine64, which is said to be disabling the
internal RX delay of the PHY.

Enable the hack by set the PHY mode to RGMII-TXID.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
---
Changes in v2:
- It can be merged now as dwmac-sun8i entered mainline.
- Use phy-mode rgmii-txid instead of custom property.

arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
index 24f1aac366d6..ed715426fffc 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
@@ -52,7 +52,7 @@
&emac {
pinctrl-names = "default";
pinctrl-0 = <&rgmii_pins>;
- phy-mode = "rgmii";
+ phy-mode = "rgmii-txid";
phy-handle = <&ext_rgmii_phy>;
status = "okay";
};
--
2.13.5
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