From 9999e48639b3cecb08ffb37358bcba3b48161b29 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 08:50:17 +0000
Subject: [PATCH] add ax88772_rst
---
kernel/arch/arm/boot/dts/imx6qdl-sr-som.dtsi | 29 +++++++++++++++++++++++++++--
1 files changed, 27 insertions(+), 2 deletions(-)
diff --git a/kernel/arch/arm/boot/dts/imx6qdl-sr-som.dtsi b/kernel/arch/arm/boot/dts/imx6qdl-sr-som.dtsi
index 4ccb7af..c56337b 100644
--- a/kernel/arch/arm/boot/dts/imx6qdl-sr-som.dtsi
+++ b/kernel/arch/arm/boot/dts/imx6qdl-sr-som.dtsi
@@ -53,10 +53,35 @@
&fec {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_microsom_enet_ar8035>;
- phy-mode = "rgmii";
- phy-reset-duration = <2>;
+ phy-mode = "rgmii-id";
+
+ /*
+ * The PHY seems to require a long-enough reset duration to avoid
+ * some rare issues where the PHY gets stuck in an inconsistent and
+ * non-functional state at boot-up. 10ms proved to be fine .
+ */
+ phy-reset-duration = <10>;
phy-reset-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /*
+ * The PHY can appear at either address 0 or 4 due to the
+ * configuration (LED) pin not being pulled sufficiently.
+ */
+ ethernet-phy@0 {
+ reg = <0>;
+ qca,clk-out-frequency = <125000000>;
+ };
+
+ ethernet-phy@4 {
+ reg = <4>;
+ qca,clk-out-frequency = <125000000>;
+ };
+ };
};
&iomuxc {
--
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