Kernel-4.18.0-80.el8_tango-nan

Sigma Designs Tango4 NAND Flash Controller (NFC)

Required properties:

• compatible: “sigma,smp8758-nand”
• reg: address/size of nfc_reg, nfc_mem, and pbus_reg
• dmas: reference to the DMA channel used by the controller
• dma-names: “rxtx”
• clocks: reference to the system clock
• #address-cells: <1>
• #size-cells: <0>

Children nodes represent the available NAND chips.
See Documentation/devicetree/bindings/mtd/nand.txt for generic bindings.

Example:

nandc: nand-controller@2c000 {
    compatible = "sigma,smp8758-nand";
    reg = <0x2c000 0x30>, <0x2d000 0x800>, <0x20000 0x1000>;
    dmas = <&dma0 3>;
    dma-names = "rxtx";
    clocks = <&clkgen SYS_CLK>;
    #address-cells = <1>;
    #size-cells = <0>;

    nand@0 {
        reg = <0>; /* CS0 */
        nand-ecc-strength = <14>;
        nand-ecc-step-size = <1024>;
    };

    nand@1 {
        reg = <1>; /* CS1 */
        nand-ecc-strength = <14>;
        nand-ecc-step-size = <1024>;
    };
};