Hi, if you want to enable SPI0.2 please add following config in arch/arm/boot/dts/s5p4418-nanopi2-common.dtsi. Example: &spi_2 { status = "okay"; cs-gpios = <&gpio_c 10 0>; spidev0: spidev@0 { status = "okay"; compatible = "linux,spidev"; pl022,hierarchy = <0>; ...