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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>
This commit is contained in:
Christian Marangi 2025-10-23 15:37:00 +02:00
parent 9089b716be
commit ea850b5a18
WARNING! Although there is a key with this ID in the database it does not verify this commit! This commit is SUSPICIOUS.
GPG Key ID: AC001D09ADBFEAD7
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";
};