[PATCH net-next v3 3/4] ARM: dts: aspeed: ast2600-evb: Configure RGMII delay for MAC
From: Jacky Chou <jacky_chou@aspeedtech.com>
Date: 2025-11-03 07:39:47
Also in:
linux-arm-kernel, linux-aspeed, linux-devicetree, lkml
Subsystem:
arm/aspeed machine support, the rest · Maintainers:
Joel Stanley, Andrew Jeffery, Linus Torvalds
This change sets the rx-internal-delay-ps and tx-internal-delay-ps properties to control the RGMII signal delay. The phy-mode for MAC0–MAC3 is updated to "rgmii-id" to enable TX/RX internal delay on the PHY and disable the corresponding delay on the MAC. Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com> --- arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts | 28 +++++++++++++++++++++---- 1 file changed, 24 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts b/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts
index de83c0eb1d6e..a65568e637bd 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts@@ -121,44 +121,64 @@ ethphy3: ethernet-phy@0 { }; &mac0 { + compatible = "aspeed,ast2600-mac01", "aspeed,ast2600-mac", "faraday,ftgmac100"; status = "okay"; - phy-mode = "rgmii-rxid"; + phy-mode = "rgmii-id"; phy-handle = <ðphy0>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_rgmii1_default>; + + rx-internal-delay-ps = <0>; + tx-internal-delay-ps = <0>; + scu = <&syscon>; }; &mac1 { + compatible = "aspeed,ast2600-mac01", "aspeed,ast2600-mac", "faraday,ftgmac100"; status = "okay"; - phy-mode = "rgmii-rxid"; + phy-mode = "rgmii-id"; phy-handle = <ðphy1>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_rgmii2_default>; + + rx-internal-delay-ps = <0>; + tx-internal-delay-ps = <0>; + scu = <&syscon>; }; &mac2 { + compatible = "aspeed,ast2600-mac23", "aspeed,ast2600-mac", "faraday,ftgmac100"; status = "okay"; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; phy-handle = <ðphy2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_rgmii3_default>; + + rx-internal-delay-ps = <0>; + tx-internal-delay-ps = <0>; + scu = <&syscon>; }; &mac3 { + compatible = "aspeed,ast2600-mac23", "aspeed,ast2600-mac", "faraday,ftgmac100"; status = "okay"; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; phy-handle = <ðphy3>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_rgmii4_default>; + + rx-internal-delay-ps = <0>; + tx-internal-delay-ps = <0>; + scu = <&syscon>; }; &emmc_controller {
--
2.34.1