AM335x的自定义板子,基于
dts中配置:
&mmc1 {
status = "okay";
vmmc-supply = <&vmmc_reg>;
bus-width = <4>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&mmc1_pins_default>;
pinctrl-1 = <&mmc1_pins_sleep>;
cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
};
vmmc_reg: regulator@12 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
内核启动过程中,报错 unable to get vmmc regulator -517
以上设备树配置哪里有问题吗?