[PATCH v5 10/12] arm64: dts: rockchip: rk3588s-nanopi-r6: add comment about gmac phy-mode

Joachim Eastwood <[email protected]> Tue, 28 Jul 2026 14:00:37 +0200
Newsgroups org.kernel.feeds.b4-sent,org.infradead.lists.linux-arm-kernel,org.infradead.lists.linux-rockchip,org.kernel.vger.linux-devicetree
Message-ID <[email protected]>
Add comment to explain rgmii-rxid phy-mode usage. Note that the actual
delay in ns is not known. The tx_delay value of 0x42 comes from vendor
DT.

Signed-off-by: Joachim Eastwood <[email protected]>
---
 arch/arm64/boot/dts/rockchip/rk3588s-nanopi-r6.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-nanopi-r6.dtsi b/arch/arm64/boot/dts/rockchip/rk3588s-nanopi-r6.dtsi
index 5a42e7dadc92..94f218a48078 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-nanopi-r6.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-nanopi-r6.dtsi
@@ -199,7 +199,7 @@ &cpu_l3 {
 &gmac1 {
 	clock_in_out = "output";
 	phy-handle = <&rgmii_phy1>;
-	phy-mode = "rgmii-rxid";
+	phy-mode = "rgmii-rxid"; /* Vendor provided tx delay value below */
 	phy-supply = <&vcc_3v3_s3>;
 	pinctrl-0 = <&gmac1_miim
 		     &gmac1_tx_bus2

-- 
2.55.0