[MTK] 添加SD card 的DTS 节点

文摘 无标签 2021-11-10 阅读:414

【DESCRIPTION】

       DTS 文件中添加SD card (&msdc1) 配置节点,以支持SD card

【Code 位置】

       kerne-4.4/arch/arm64/boot/dts/meidatek/cust_mt6771_msdc.dtsi

【添加方法】

       在&msdc0 节点下面,添加&msdc1;

添加&msdc1 节点如下:

&msdc1 {
        index = /bits/ 8 <1>;
        clk_src = /bits/ 8 <MSDC30_CLKSRC_200MHZ>;
        bus-width = <4>;
        max-frequency = <200000000>;
        msdc-sys-suspend;
        cap-sd-highspeed;
        sd-vmch-fastoff;
        sd-uhs-sdr12;
        sd-uhs-sdr25;
        sd-uhs-sdr50;
        sd-uhs-sdr104;
        sd-uhs-ddr50;
        pinctl = <&msdc1_pins_default>;
        pinctl_sdr104 = <&msdc1_pins_sdr104>;
        pinctl_sdr50 = <&msdc1_pins_sdr50>;
        pinctl_ddr50 = <&msdc1_pins_ddr50>;
        register_setting = <&msdc1_register_setting_default>;
        host_function = /bits/ 8 <MSDC_SD>;
        cd_level = /bits/ 8 <MSDC_CD_LOW>;
        cd-gpios = <&pio 3 0>;
        status = "okay";
        vmmc-supply = <&mt_pmic_vmch_ldo_reg>;
        vqmmc-supply = <&mt_pmic_vmc_ldo_reg>;
        clocks = <&infracfg_ao INFRACFG_AO_MSDC1_SCK_CG>, <&infracfg_ao INFRACFG_AO_MSDC1_CG>;
        clock-names = "msdc1-clock", "msdc1-hclock";
        hw_dvfs = /bits/ 8 <0>;
};


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