Commit a3c5a11d authored by Maxime Ripard's avatar Maxime Ripard Committed by Miquel Raynal

dt-bindings: mtd: sunxi-nand: Add YAML schemas

Switch the DT binding to a YAML schema to enable the DT validation.
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
parent 212e4969
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/mtd/allwinner,sun4i-a10-nand.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Allwinner A10 NAND Controller Device Tree Bindings
allOf:
- $ref: "nand-controller.yaml"
maintainers:
- Chen-Yu Tsai <wens@csie.org>
- Maxime Ripard <maxime.ripard@bootlin.com>
properties:
"#address-cells": true
"#size-cells": true
compatible:
const: allwinner,sun4i-a10-nand
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: Bus Clock
- description: Module Clock
clock-names:
items:
- const: ahb
- const: mod
resets:
maxItems: 1
reset-names:
const: ahb
dmas:
maxItems: 1
dma-names:
const: rxtx
pinctrl-names: true
patternProperties:
"^pinctrl-[0-9]+$": true
"^nand@[a-f0-9]+$":
properties:
reg:
maxItems: 1
minimum: 0
maximum: 7
nand-ecc-mode: true
nand-ecc-algo:
const: bch
nand-ecc-step-size:
enum: [ 512, 1024 ]
nand-ecc-strength:
maximum: 80
allwinner,rb:
description:
Contains the native Ready/Busy IDs.
allOf:
- $ref: /schemas/types.yaml#/definitions/uint32-array
- minItems: 1
maxItems: 2
items:
minimum: 0
maximum: 1
additionalProperties: false
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
additionalProperties: false
...
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 properties:
- dmas : shall reference DMA channel associated to the NAND controller.
- dma-names : shall be "rxtx".
Optional children nodes:
Children nodes represent the available nand chips.
Optional properties:
- reset : phandle + reset specifier pair
- reset-names : must contain "ahb"
- allwinner,rb : shall contain the native Ready/Busy ids.
- nand-ecc-mode : one of the supported ECC modes ("hw", "soft", "soft_bch" or
"none")
see Documentation/devicetree/bindings/mtd/nand.txt for generic bindings.
Examples:
nfc: nand@1c03000 {
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>;
nand@0 {
reg = <0>;
allwinner,rb = <0>;
nand-ecc-mode = "soft_bch";
};
};
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