[openwrt/openwrt] airoha: an7583: add additional comments on EVB board

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch openwrt-24.10:
https://git.openwrt.org/4d4fd4d1258ba9ba645175faa1c16765a1f3abd1

commit 4d4fd4d1258ba9ba645175faa1c16765a1f3abd1
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Thu Oct 23 15:37:00 2025 +0200

    airoha: an7583: add additional comments on EVB board
    
    On the Airoha AN7583 EVB there are 2 Aeonsemi AS21xxx PHY but only the
    one connected to Serdes Ethernet is usable as the other connected to
    Serdes PON is not actually HW connected (as the serdes is connected to
    the BOSA port)
    
    Add comments and disable the relevant PHY.
    
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
    (cherry picked from commit ea850b5a18a7b5041000bfd77ed1be6f29ba7b75)
---
 target/linux/airoha/dts/an7583-evb.dts | 83 ++++++++++++++++++----------------
 1 file changed, 45 insertions(+), 38 deletions(-)

diff --git a/target/linux/airoha/dts/an7583-evb.dts b/target/linux/airoha/dts/an7583-evb.dts
index fdd5b2aa92..30f1cf0800 100644
--- a/target/linux/airoha/dts/an7583-evb.dts
+++ b/target/linux/airoha/dts/an7583-evb.dts
@@ -135,37 +135,41 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&mdio0_pins>;
 
-	as21xx_0: ethernet-phy at 1d {
-		reg = <0x1d>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-
-		firmware-name = "as21x1x_fw.bin";
-
-		reset-deassert-us = <350000>;
-		reset-assert-us = <200000>;
-		reset-gpios = <&an7583_pinctrl 34 GPIO_ACTIVE_LOW>;
-
-		leds {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			led at 0 {
-				reg = <0>;
-				color = <LED_COLOR_ID_GREEN>;
-				function = LED_FUNCTION_LAN;
-				function-enumerator = <0>;
-				default-state = "keep";
-			};
-
-			led at 1 {
-				reg = <1>;
-				color = <LED_COLOR_ID_GREEN>;
-				function = LED_FUNCTION_LAN;
-				function-enumerator = <1>;
-				default-state = "keep";
-			};
-		};
-	};
+	/* Present but not HW connected to GDM port */
+	/*
+	 * as21xx_0: ethernet-phy at 1d {
+	 *		reg = <0x1d>;
+	 *		compatible = "ethernet-phy-ieee802.3-c45";
+	 *		status = "disabled";
+	 *
+	 *		firmware-name = "as21x1x_fw.bin";
+	 *
+	 *		reset-deassert-us = <350000>;
+	 *		reset-assert-us = <200000>;
+	 *		reset-gpios = <&an7583_pinctrl 34 GPIO_ACTIVE_LOW>;
+	 *
+	 *		leds {
+	 *			#address-cells = <1>;
+	 *			#size-cells = <0>;
+	 *
+	 *			led at 0 {
+	 *				reg = <0>;
+	 *				color = <LED_COLOR_ID_GREEN>;
+	 *				function = LED_FUNCTION_LAN;
+	 *				function-enumerator = <0>;
+	 *				default-state = "keep";
+	 *			};
+	 *
+	 *			led at 1 {
+	 *				reg = <1>;
+	 *				color = <LED_COLOR_ID_GREEN>;
+	 *				function = LED_FUNCTION_LAN;
+	 *				function-enumerator = <1>;
+	 *				default-state = "keep";
+	 *			};
+	 *		};
+	 * };
+	 */
 
 	as21xx_1: ethernet-phy at 1f {
 		reg = <0x1f>;
@@ -200,16 +204,19 @@
 	};
 };
 
+/* GDM2 seems to be connected to PON */
+/*
+ *&gdm2 {
+ *	status = "disabled";
+ *
+ *	phy-handle = <&as21xx_0>;
+ *	phy-mode = "usxgmii";
+ *};
+ */
+
 &gdm3 {
 	status = "okay";
 
 	phy-handle = <&as21xx_1>;
 	phy-mode = "usxgmii";
 };
-
-&gdm2 {
-	status = "okay";
-
-	phy-handle = <&as21xx_0>;
-	phy-mode = "usxgmii";
-};