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arm64: dts: mediatek: mt7981b: OpenWrt One: set console UART to 115200

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Use the new uart0 label for the console and make the speed explicit by
setting stdout-path = "serial0:115200n8" under /chosen. This keeps the
DTS OS-agnostic: no bootargs or distribution-specific properties are
added.

Drop the 'current-speed' property from uart0 as it is not allowed by the
mediatek UART binding. The baud is already provided via stdout-path.

Verification: Boot-tested with mainline Image+DTB via U-Boot on OpenWrt
One (MT7981B). Serial console active at 115200, DTB decompile
confirms serial0 alias and stdout-path set correctly.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202509211032.0rJjPoYE-lkp@intel.com/
Signed-off-by: Bryan Hinton <bryan@bryanhinton.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
Bryan Hinton 2025-09-21 22:58:10 -05:00 committed by AngeloGioacchino Del Regno
parent c0a824edb6
commit 36712c5cf9
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1 changed files with 12 additions and 0 deletions
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arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
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@ -8,8 +8,20 @@ / {
compatible = "openwrt,one", "mediatek,mt7981b";
model = "OpenWrt One";
aliases {
serial0 = &uart0;
};
chosen {
stdout-path = "serial0:115200n8";
};
memory@40000000 {
reg = <0 0x40000000 0 0x40000000>;
device_type = "memory";
};
};
&uart0 {
status = "okay";
};