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1.內核 拷貝rc522驅動到iTOP-iMX6_android6.0.1/kernel_imx/drivers/spi目錄下。 打開iTOP-iMX6_android6.0.1/kernel_imx/drivers/spi/Makefile 添加： obj-$(CONFIG_SPI_RC522) += rc522.o iTOP-iMX6_android6.0.1/kernel_imx/drivers/spi/Kconfig 在文件末尾添加： config SPI_RC522 tristate "RC522 Module driver support" help This supports RC522 Module drivers. 2.修改設備樹文件 iTOP-iMX6_android6.0.1/kernel_imx/arch/arm/boot/dts/imx6qdl-sabresd.dtsi (1)添加： &ecspi2 { fsl,spi-num-chipselects = <1>; cs-gpios = <&gpio2 27 0>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_ecspi2>; status = "okay"; rfid: rc522@0 { #address-cells = <1>; #size-cells = <1>; compatible = "rc522"; spi-max-frequency = <10000000>; reg = <0>; }; }; pinctrl_ecspi2: ecspi2grp { fsl,pins = < MX6QDL_PAD_EIM_OE__ECSPI2_MISO 0x100b1 MX6QDL_PAD_EIM_CS1__ECSPI2_MOSI 0x100b1 MX6QDL_PAD_EIM_CS0__ECSPI2_SCLK 0x100b1 MX6QDL_PAD_EIM_LBA__GPIO2_IO27 0x1b0b0 >; }; 
(2)注釋語句 MX6QDL_PAD_EIM_CS1__GPIO2_IO24 0x80000000
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