Set uart iotype to mmio32 to make earlycon work with stdout-path. Signed-off-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> --- arch/arm64/boot/dts/mediatek/mt8183.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi index 102105871db25..0bda97f912789 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi @@ -374,6 +374,8 @@ uart0: serial@11002000 { interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>; clocks = <&clk26m>, <&infracfg CLK_INFRA_UART0>; clock-names = "baud", "bus"; + reg-io-width = <4>; + reg-shift = <2>; status = "disabled"; }; @@ -384,6 +386,8 @@ uart1: serial@11003000 { interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_LOW>; clocks = <&clk26m>, <&infracfg CLK_INFRA_UART1>; clock-names = "baud", "bus"; + reg-io-width = <4>; + reg-shift = <2>; status = "disabled"; }; @@ -394,6 +398,8 @@ uart2: serial@11004000 { interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_LOW>; clocks = <&clk26m>, <&infracfg CLK_INFRA_UART2>; clock-names = "baud", "bus"; + reg-io-width = <4>; + reg-shift = <2>; status = "disabled"; }; -- 2.28.0.526.ge36021eeef-goog