dt-bindings: nand: meson: convert txt to yaml

Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs

This file documents the properties in addition to those available in

the MTD NAND bindings.

Required properties:

- compatible : contains one of:

  - "amlogic,meson-gxl-nfc"

  - "amlogic,meson-axg-nfc"

- reg        : Offset and length of the register set

- reg-names  : "nfc" is the register set for NFC controller and "emmc"

		is the register set for MCI controller.

- clocks     :

	A list of phandle + clock-specifier pairs for the clocks listed

	in clock-names.

- clock-names: Should contain the following:

	"core" - NFC module gate clock

	"device" - parent clock for internal NFC

Optional children nodes:

Children nodes represent the available nand chips.

Other properties:

see Documentation/devicetree/bindings/mtd/nand-controller.yaml for generic bindings.

Example demonstrate on AXG SoC:

	nand-controller@7800 {

		compatible = "amlogic,meson-axg-nfc";

		reg = <0x0 0x7800 0x0 0x100>,

		      <0x0 0x7000 0x0 0x800>;

		reg-names = "nfc", "emmc";

		#address-cells = <1>;

		#size-cells = <0>;

		interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;

		clocks = <&clkc CLKID_SD_EMMC_C>,

			 <&clkc CLKID_FCLK_DIV2>;

		clock-names = "core", "device";

		pinctrl-names = "default";

		pinctrl-0 = <&nand_pins>;

		nand@0 {

			reg = <0>;

			#address-cells = <1>;

			#size-cells = <1>;

			nand-on-flash-bbt;

		};

	};

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/mtd/amlogic,meson-nand.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs

allOf:

  - $ref: nand-controller.yaml

maintainers:

  - liang.yang@amlogic.com

properties:

  compatible:

    enum:

      - amlogic,meson-gxl-nfc

      - amlogic,meson-axg-nfc

  reg:

    maxItems: 2

  reg-names:

    items:

      - const: nfc

      - const: emmc

  interrupts:

    maxItems: 1

  clocks:

    minItems: 2

  clock-names:

    items:

      - const: core

      - const: device

patternProperties:

  "^nand@[0-7]$":

    type: object

    properties:

      reg:

        minimum: 0

        maximum: 1

      nand-ecc-mode:

        const: hw

      nand-ecc-step-size:

        const: 1024

      nand-ecc-strength:

        enum: [8, 16, 24, 30, 40, 50, 60]

        description: |

          The ECC configurations that can be supported are as follows.

            meson-gxl-nfc 8, 16, 24, 30, 40, 50, 60

            meson-axg-nfc 8

required:

  - compatible

  - reg

  - interrupts

  - clocks

  - clock-names

unevaluatedProperties: false

examples:

  - |

    #include <dt-bindings/clock/axg-clkc.h>

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    nand-controller@ffe07800 {

      compatible = "amlogic,meson-axg-nfc";

      reg = <0xffe07800 0x100>, <0xffe07000 0x800>;

      reg-names = "nfc", "emmc";

      interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;

      clocks = <&clkc CLKID_SD_EMMC_C>,  <&clkc CLKID_FCLK_DIV2>;

      clock-names = "core", "device";

      pinctrl-0 = <&nand_pins>;

      pinctrl-names = "default";

      #address-cells = <1>;

      #size-cells = <0>;

      nand@0 {

        reg = <0>;

      };

    };

...