linux-kernel - [PATCH] arm64: dts: rockchip: Fix ethernet on production Quartz64-B

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Date:   Mon,  6 Jun 2022 12:30:23 -0400
From:   Peter Geis <pgwipeout@...il.com>
To:     Heiko Stuebner <heiko@...ech.de>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Peter Geis <pgwipeout@...il.com>
Cc:     Frank Mankel <frank.mankel@...il.com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: rockchip: Fix ethernet on production Quartz64-B

The production Quartz64 Model B has compatibility issues when using
rgmii-id mode. Switch to rgmii mode and use the SoC's delays to ensure
full compatibility.

Reported-by: Frank Mankel <frank.mankel@...il.com>
Fixes: dcc8c66bef79 ("arm64: dts: rockchip: add Pine64 Quartz64-B device
tree")
Signed-off-by: Peter Geis <pgwipeout@...il.com>
Tested-by: Frank Mankel <frank.mankel@...il.com>
---
 arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts
index 7bdcecc0dfe4..02d5f5a8ca03 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts
@@ -133,7 +133,7 @@ &gmac1 {
 	assigned-clocks = <&cru SCLK_GMAC1_RX_TX>, <&cru SCLK_GMAC1_RGMII_SPEED>, <&cru SCLK_GMAC1>;
 	assigned-clock-parents = <&cru SCLK_GMAC1_RGMII_SPEED>, <&cru SCLK_GMAC1>, <&gmac1_clkin>;
 	clock_in_out = "input";
-	phy-mode = "rgmii-id";
+	phy-mode = "rgmii";
 	phy-supply = <&vcc_3v3>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&gmac1m1_miim
-- 
2.25.1