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uboot-mediatek: fix BT-R320 Ethernet mode

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The CPU port between the MT7981 and MT7531 runs at 2.5 Gbps, but the U-Boot
device tree configures it as SGMII at 1 Gbps. This leaves Ethernet unable
to exchange packets despite an active physical link.

Use 2500base-x and a 2500 Mbps fixed link, matching the Linux device tree.

Fixes: a3105d3f95 ("mediatek: filogic: add support for Globitel BT-R320")
Signed-off-by: Bogdan K <zikwarface134@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/24372
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
This commit is contained in:
Bogdan K 2026-07-22 16:04:42 +03:00 committed by Jonas Jelonek
parent 5428b99227
commit 4aaabd3a4b
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1 changed files with 2 additions and 2 deletions
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package/boot/uboot-mediatek/patches/472-add-globitel-bt-r320.patch
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@ -63,12 +63,12 @@
+&eth {
+ status = "okay";
+ mediatek,gmac-id = <0>;
+ phy-mode = "sgmii";
+ phy-mode = "2500base-x";
+ mediatek,switch = "mt7531";
+ reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
+
+ fixed-link {
+ speed = <1000>;
+ speed = <2500>;
+ full-duplex;
+ };
+};