[PATCH v2 1/2] arm64: dts: mt8173: Set uart to mmio32 iotype

Hsin-Yi Wang hsinyi at chromium.org
Thu Sep 10 04:43:03 EDT 2020


Set uart iotype to mmio32 to make earlycon work with stdout-path.

Signed-off-by: Hsin-Yi Wang <hsinyi at chromium.org>
---
 arch/arm64/boot/dts/mediatek/mt8173.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 5e046f9d48ce9..ca6ea71f5f435 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -613,6 +613,8 @@ uart0: serial at 11002000 {
 			interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_LOW>;
 			clocks = <&pericfg CLK_PERI_UART0_SEL>, <&pericfg CLK_PERI_UART0>;
 			clock-names = "baud", "bus";
+			reg-io-width = <4>;
+			reg-shift = <2>;
 			status = "disabled";
 		};
 
@@ -623,6 +625,8 @@ uart1: serial at 11003000 {
 			interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_LOW>;
 			clocks = <&pericfg CLK_PERI_UART1_SEL>, <&pericfg CLK_PERI_UART1>;
 			clock-names = "baud", "bus";
+			reg-io-width = <4>;
+			reg-shift = <2>;
 			status = "disabled";
 		};
 
@@ -633,6 +637,8 @@ uart2: serial at 11004000 {
 			interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_LOW>;
 			clocks = <&pericfg CLK_PERI_UART2_SEL>, <&pericfg CLK_PERI_UART2>;
 			clock-names = "baud", "bus";
+			reg-io-width = <4>;
+			reg-shift = <2>;
 			status = "disabled";
 		};
 
@@ -643,6 +649,8 @@ uart3: serial at 11005000 {
 			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_LOW>;
 			clocks = <&pericfg CLK_PERI_UART3_SEL>, <&pericfg CLK_PERI_UART3>;
 			clock-names = "baud", "bus";
+			reg-io-width = <4>;
+			reg-shift = <2>;
 			status = "disabled";
 		};
 
-- 
2.28.0.526.ge36021eeef-goog




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