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airoha: an7583: add additional comments on EVB board

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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@gmail.com>
(cherry picked from commit ea850b5a18a7b5041000bfd77ed1be6f29ba7b75)
(cherry picked from commit 4d4fd4d1258ba9ba645175faa1c16765a1f3abd1)
This commit is contained in:
Christian Marangi 2025-10-23 15:37:00 +02:00 committed by Hela Saadani
parent 1517fcfb50
commit d9efe43b24
1 changed files with 45 additions and 38 deletions
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83
target/linux/airoha/dts/an7583-evb.dts
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@ -135,37 +135,41 @@
pinctrl-names = "default";
pinctrl-0 = <&mdio0_pins>;
as21xx_0: ethernet-phy@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@0 {
reg = <0>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_LAN;
function-enumerator = <0>;
default-state = "keep";
};
led@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@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@0 {
* reg = <0>;
* color = <LED_COLOR_ID_GREEN>;
* function = LED_FUNCTION_LAN;
* function-enumerator = <0>;
* default-state = "keep";
* };
*
* led@1 {
* reg = <1>;
* color = <LED_COLOR_ID_GREEN>;
* function = LED_FUNCTION_LAN;
* function-enumerator = <1>;
* default-state = "keep";
* };
* };
* };
*/
as21xx_1: ethernet-phy@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";
};