MA35D1的I2C无法正常使用问题

只看该作者 · 2023-3-17 14:40

要用到I2C0 (PM8/PM9)，在设备树中

\MA35D1_Buildroot\output\build\linux-custom\arch\arm64\boot\dts\nuvoton\ma35d1-iot-512m.dts增加以下内容:(调整内容移动到ma35d1.dtsi也是一样现象)

/ {

i2c0: i2c@40800000 {

compatible = "nuvoton,ma35d1-i2c";

reg = <0x0 0x40800000 0x0 0x10000>;

interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;

clocks = <&clk I2C0_GATE>;

clock-frequency = <100000>;

resets = <&reset MA35D1_RESET_I2C0>;

status = "disable";

#address-cells = <1>;

#size-cells = <0>;

};

};

&i2c0 {

status = "okay";

};

后启动错误。