imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Without delay, the generic phy driver is used for adin1300: [ 2.668675] Generic PHY 30be0000.ethernet-1:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=30be0000.ethernet-1:00, irq=POLL) With the delay, the ADIN1300 phy driver is used: [ 2.815321] ADIN1300 30be0000.ethernet-1:04: attached PHY driver [ADIN1300] (mii_bus:phy_addr=30be0000.ethernet-1:04, irq=POLL) Signed-off-by: Alifer Moraes <alifer.m@variscite.com> Signed-off-by: Nate Drude <nate.d@variscite.com>
varigit · May 2, 2022 · 5c7717b · 5c7717b
1 parent 1f96cb1
commit 5c7717b
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diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-dart.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-dart.dtsi
@@ -173,6 +173,7 @@
 	phy-supply = <&reg_eth_phy>;
 	phy-reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
 	phy-reset-duration = <10>;
+	phy-reset-post-delay = <20>;
 	phy-reset-on-resume;
 	status = "okay";
 

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -174,6 +174,7 @@
 	phy-supply = <&reg_eth_phy>;
 	phy-reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
 	phy-reset-duration = <10>;
+	phy-reset-post-delay = <20>;
 	phy-reset-on-resume;
 	status = "okay";