forked from Minki/linux
5935946c6a
Add the sunxi NAND Flash Controller dt bindings documentation. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
46 lines
1.3 KiB
Plaintext
46 lines
1.3 KiB
Plaintext
Allwinner NAND Flash Controller (NFC)
|
|
|
|
Required properties:
|
|
- compatible : "allwinner,sun4i-a10-nand".
|
|
- reg : shall contain registers location and length for data and reg.
|
|
- interrupts : shall define the nand controller interrupt.
|
|
- #address-cells: shall be set to 1. Encode the nand CS.
|
|
- #size-cells : shall be set to 0.
|
|
- clocks : shall reference nand controller clocks.
|
|
- clock-names : nand controller internal clock names. Shall contain :
|
|
* "ahb" : AHB gating clock
|
|
* "mod" : nand controller clock
|
|
|
|
Optional children nodes:
|
|
Children nodes represent the available nand chips.
|
|
|
|
Optional properties:
|
|
- allwinner,rb : shall contain the native Ready/Busy ids.
|
|
or
|
|
- rb-gpios : shall contain the gpios used as R/B pins.
|
|
- nand-ecc-mode : one of the supported ECC modes ("hw", "hw_syndrome", "soft",
|
|
"soft_bch" or "none")
|
|
|
|
see Documentation/devicetree/mtd/nand.txt for generic bindings.
|
|
|
|
|
|
Examples:
|
|
nfc: nand@01c03000 {
|
|
compatible = "allwinner,sun4i-a10-nand";
|
|
reg = <0x01c03000 0x1000>;
|
|
interrupts = <0 37 1>;
|
|
clocks = <&ahb_gates 13>, <&nand_clk>;
|
|
clock-names = "ahb", "mod";
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
|
|
status = "okay";
|
|
|
|
nand@0 {
|
|
reg = <0>;
|
|
allwinner,rb = <0>;
|
|
nand-ecc-mode = "soft_bch";
|
|
};
|
|
};
|