linux-kernel - [PATCH] arm64: dts: rockchip: Fix RX delay for ethernet phy

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Message-Id: <20230113130220.662194-1-lucas.tanure@collabora.com>
Date:   Fri, 13 Jan 2023 13:02:20 +0000
From:   Lucas Tanure <lucas.tanure@...labora.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Lucas Tanure <lucas.tanure@...labora.com>
Subject: [PATCH] arm64: dts: rockchip: Fix RX delay for ethernet phy

Add network PHY rx delay and change type to rgmii, so
that it is applied. This fixes packet loss when more
than a few packets are exchanged.

Fixes: 55fa4c2a7a912 ("arm64: dts: rockchip: Add rock-5a board")
Signed-off-by: Lucas Tanure <lucas.tanure@...labora.com>
---
 arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
index cc4c68936b3a..9e22ce01e1a3 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
@@ -53,7 +53,7 @@ vcc_1v1_nldo_s3: vcc-1v1-nldo-s3 {
 &gmac1 {
 	clock_in_out = "output";
 	phy-handle = <&rgmii_phy1>;
-	phy-mode = "rgmii-rxid";
+	phy-mode = "rgmii";
 	pinctrl-0 = <&gmac1_miim
 		     &gmac1_tx_bus2
 		     &gmac1_rx_bus2
@@ -61,6 +61,7 @@ &gmac1_rgmii_clk
 		     &gmac1_rgmii_bus>;
 	pinctrl-names = "default";
 	tx_delay = <0x3a>;
+	rx_delay = <0x3e>;
 	status = "okay";
 };
 
-- 
2.39.0