[PATCH 5.10 092/563] arm64: dts: renesas: cat875: Add rx/tx delays

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From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>

[ Upstream commit e1a9faddffe7e555304dc2e3284c84fbee0679ee ]

The CAT875 sub board from Silicon Linux uses a Realtek PHY.

The phy driver commit bbc4d71d63549bcd003 ("net: phy: realtek: fix
rtl8211e rx/tx delay config") introduced NFS mount failures.  Now it
needs both rx/tx delays for the NFS mount to work.

This patch fixes the NFS mount failure issue by adding "rgmii-id" mode
to the avb device node.

Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Fixes: bbc4d71d63549bcd ("net: phy: realtek: fix rtl8211e rx/tx delay config")
Link: https://lore.kernel.org/r/20211115142830.12651-1-biju.das.jz@xxxxxxxxxxxxxx
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/arm64/boot/dts/renesas/cat875.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/renesas/cat875.dtsi b/arch/arm64/boot/dts/renesas/cat875.dtsi
index 801ea54b027c4..20f8adc635e72 100644
--- a/arch/arm64/boot/dts/renesas/cat875.dtsi
+++ b/arch/arm64/boot/dts/renesas/cat875.dtsi
@@ -18,6 +18,7 @@
 	pinctrl-names = "default";
 	renesas,no-ether-link;
 	phy-handle = <&phy0>;
+	phy-mode = "rgmii-id";
 	status = "okay";
 
 	phy0: ethernet-phy@0 {
-- 
2.34.1






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