[openwrt/openwrt] realtek: XGS1210-12: convert RTL8226 PHYs to 2500base-x

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/a3d681d7f5dcb6cf9142a50e6ea55f79f25d276e

commit a3d681d7f5dcb6cf9142a50e6ea55f79f25d276e
Author: Markus Stockhausen <markus.stockhausen at gmx.de>
AuthorDate: Sun Aug 24 14:10:30 2025 -0400

    realtek: XGS1210-12: convert RTL8226 PHYs to 2500base-x
    
    We reached the point of no return. Upstream has gained the final
    bits for the RTL8226 PHYs. That means.
    
    - RTL8226 MAC side behaves like RTL8221(B)
    - It's serdes no longer uses proprietary HSGMII (2.5G SGMII)
    - Instead it dynamically switches between SGMII and 2500base-x
    
    This (partly) solves one of the central henn/egg problems of the
    Realtek target. To change the MAC/PHY interface mode both sides
    need to have all bits in place to do so. But where to start if
    so much needs to be done?
    
    Now the PHY side has created facts and it mitigates a lot of
    problems. All downstream HSGMII patches and coding can be dropped
    in the future.
    
    For now only adapt the only DTS that still maps PHYs to HSGMII.
    
    Signed-off-by: Markus Stockhausen <markus.stockhausen at gmx.de>
    Link: https://github.com/openwrt/openwrt/pull/19843
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 target/linux/realtek/dts/rtl9302_zyxel_xgs1210-12.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/linux/realtek/dts/rtl9302_zyxel_xgs1210-12.dts b/target/linux/realtek/dts/rtl9302_zyxel_xgs1210-12.dts
index e1f4753f23..9ff919573a 100644
--- a/target/linux/realtek/dts/rtl9302_zyxel_xgs1210-12.dts
+++ b/target/linux/realtek/dts/rtl9302_zyxel_xgs1210-12.dts
@@ -290,14 +290,14 @@
 		port at 24 {
 			reg = <24>;
 			label = "lan9";
-			phy-mode = "hsgmii";
+			phy-mode = "2500base-x";
 			phy-handle = <&phy24>;
 			led-set = <1>;
 		};
 		port at 25 {
 			reg = <25>;
 			label = "lan10";
-			phy-mode = "hsgmii";
+			phy-mode = "2500base-x";
 			phy-handle = <&phy25>;
 			led-set = <1>;
 		};