Kernel-3.10.0-957.el7_spi_atmel

Atmel SPI device

Required properties:

• compatible : should be “atmel,at91rm9200-spi”.
• reg: Address and length of the register set for the device
• interrupts: Should contain spi interrupt
• cs-gpios: chipselects

Example:

spi1: spi@fffcc000 {
compatible = “atmel,at91rm9200-spi”;
reg = <0xfffcc000 0x4000>;
interrupts = <13 4 5>;
#address-cells = <1>;
#size-cells = <0>;
cs-gpios = <&pioB 3 0>;
status = “okay”;

mmc-slot@0 {
    compatible = "mmc-spi-slot";
    reg = <0>;
    gpios = <&pioC 4 0>;    /* CD */
    spi-max-frequency = <25000000>;
};

};