linux-kernel - [PATCH 5.10 220/243] arm64: dts: allwinner: a64-sopine-baseboard: change RGMII mode to TXID

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Message-Id: <20210719144948.032060312@linuxfoundation.org>
Date:   Mon, 19 Jul 2021 16:54:09 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Icenowy Zheng <icenowy@...c.io>,
        Maxime Ripard <maxime@...no.tech>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 220/243] arm64: dts: allwinner: a64-sopine-baseboard: change RGMII mode to TXID

From: Icenowy Zheng <icenowy@...c.io>

[ Upstream commit bd5431b2f9b30a70f6ed964dd5ee9a6d1c397c06 ]

Although the schematics of Pine A64-LTS and SoPine Baseboard shows both
the RX and TX internal delay are enabled, they're using the same broken
RTL8211E chip batch with Pine A64+, so they should use TXID instead, not
ID.

In addition, by checking the real components soldered on both a SoPine
Baseboard and a Pine A64-LTS, RX delay is not enabled (GR69 soldered and
GR70 NC) despite the schematics says it's enabled. It's a common
situation for Pine64 boards that the NC information on schematics is not
the same with the board.

So the RGMII delay mode should be TXID on these boards.

Fixes: c2b111e59a7b ("arm64: dts: allwinner: A64 Sopine: phy-mode rgmii-id")
Signed-off-by: Icenowy Zheng <icenowy@...c.io>
Signed-off-by: Maxime Ripard <maxime@...no.tech>
Link: https://lore.kernel.org/r/20210609083843.463750-1-icenowy@aosc.io
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
index d4069749d721..068cbd955bfc 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
@@ -79,7 +79,7 @@
 &emac {
 	pinctrl-names = "default";
 	pinctrl-0 = <&rgmii_pins>;
-	phy-mode = "rgmii-id";
+	phy-mode = "rgmii-txid";
 	phy-handle = <&ext_rgmii_phy>;
 	phy-supply = <&reg_dc1sw>;
 	status = "okay";
-- 
2.30.2