1Allwinner NAND Flash Controller (NFC)
2
3Required properties:
4- compatible : "allwinner,sun4i-a10-nand".
5- reg : shall contain registers location and length for data and reg.
6- interrupts : shall define the nand controller interrupt.
7- #address-cells: shall be set to 1. Encode the nand CS.
8- #size-cells : shall be set to 0.
9- clocks : shall reference nand controller clocks.
10- clock-names : nand controller internal clock names. Shall contain :
11    * "ahb" : AHB gating clock
12    * "mod" : nand controller clock
13
14Optional children nodes:
15Children nodes represent the available nand chips.
16
17Optional properties:
18- allwinner,rb : shall contain the native Ready/Busy ids.
19 or
20- rb-gpios : shall contain the gpios used as R/B pins.
21- nand-ecc-mode : one of the supported ECC modes ("hw", "hw_syndrome", "soft",
22  "soft_bch" or "none")
23
24see Documentation/devicetree/bindings/mtd/nand.txt for generic bindings.
25
26
27Examples:
28nfc: nand@01c03000 {
29	compatible = "allwinner,sun4i-a10-nand";
30	reg = <0x01c03000 0x1000>;
31	interrupts = <0 37 1>;
32	clocks = <&ahb_gates 13>, <&nand_clk>;
33	clock-names = "ahb", "mod";
34	#address-cells = <1>;
35	#size-cells = <0>;
36	pinctrl-names = "default";
37	pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
38	status = "okay";
39
40	nand@0 {
41		reg = <0>;
42		allwinner,rb = <0>;
43		nand-ecc-mode = "soft_bch";
44	};
45};
46