如何在imx8m 在uboot阶段初始化i2c设备

[lebeer]

imx8m：

在uboot阶段初始化i2c设备，设备树中添加后，，对应.c源代码使用那个呢？

目录：

/5.4.47/uboot-imx/drivers/i2c

スポイラ

[lebeer]

是的；

使用的是imx8mq-ddr4-val.dts，目录：/5.4.47/uboot-imx/arch/arm/dts

imx8mq-ddr4-val.dts包含imx8mq.dtsi

[lebeer]

&i2c1 {
      clock-frequency = <100000>;
      pinctrl-names = "default", "gpio";
      pinctrl-0 = <&pinctrl_i2c1>;
      pinctrl-1 = <&pinctrl_i2c1_gpio>;
      scl-gpios = <&gpio5 14 GPIO_ACTIVE_HIGH>;
      sda-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>;
      status = "okay";

    ADD

      pmic: pfuze100@8 {
      compatible = "fsl,pfuze100";
      reg = <0x8>;

      .......

      }

}

[joanxie · Accepted solution]

which dts file do you use? this one?

"https://source.codeaurora.org/external/imx/uboot-imx/tree/arch/arm/dts/imx8mq.dtsi?h=imx_v2020.04_5...."