Hi, > + aliases { > + mmc0 = &sdmmc; s/mmc0/mmc1 > +&sdmmc { > + bus-width = <4>; > + cap-mmc-highspeed; > + cap-sd-highspeed; I think for sdcard, only cap-sd-highspeed is needed, not cap-mmc-highspeed? > + disable-wp; Missing pinctrl. > + rockchip,default-sample-phase = <90>; It seems that all rk3528 devices need to set this default phase, so maybe this can be placed in dtsi? > + sd-uhs-sdr104; The rk3528 devices uses gpio to switch IO voltage, maybe more modes should be added here like vendor kernel? And these devices use 3.3V IO voltage by default. sd-uhs-sdr12; sd-uhs-sdr25; sd-uhs-sdr50; sd-uhs-sdr104; Thanks, Chukun -- 2.25.1