Commit 68cd8ef4 authored by Akhila YS's avatar Akhila YS Committed by Miquel Raynal
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dt-bindings: mtd: st,spear600-smi: convert to DT schema 



Convert STMicroelectronics SPEAr600 Serial Memory Interface (SMI)
Controller binding to YAML format.

Signed-off-by: default avatarAkhila YS <akhilayalmati@gmail.com>
Acked-by: default avatarConor Dooley <conor.dooley@microchip.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
parent 980ce2b0

Documentation/devicetree/bindings/mtd/spear_smi.txt

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* SPEAr SMI



Required properties:

- compatible : "st,spear600-smi"

- reg : Address range of the mtd chip

- #address-cells, #size-cells : Must be present if the device has sub-nodes

  representing partitions.

- interrupts: Should contain the STMMAC interrupts

- clock-rate : Functional clock rate of SMI in Hz



Optional properties:

- st,smi-fast-mode : Flash supports read in fast mode



Example:



	smi: flash@fc000000 {

		compatible = "st,spear600-smi";

		#address-cells = <1>;

		#size-cells = <1>;

		reg = <0xfc000000 0x1000>;

		interrupt-parent = <&vic1>;

		interrupts = <12>;

		clock-rate = <50000000>;	/* 50MHz */



		flash@f8000000 {

			st,smi-fast-mode;

			...

		};

	};

Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/mtd/st,spear600-smi.yaml#

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



title: STMicroelectronics SPEAr600 Serial Memory Interface (SMI) Controller



maintainers:

  - Richard Weinberger <richard@nod.at>



description:

  The SPEAr600 Serial Memory Interface (SMI) is a dedicated serial flash

  controller supporting up to four chip selects for serial NOR flashes

  connected in parallel. The controller is memory-mapped and the attached

  flash devices appear in the CPU address space.The driver

  (drivers/mtd/devices/spear_smi.c) probes the attached flashes

  dynamically by sending commands (e.g., RDID) to each bank.

  Flash sub nodes describe the memory range and optional per-flash

  properties.



allOf:

  - $ref: mtd.yaml#



properties:

  compatible:

    const: st,spear600-smi



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  "#address-cells":

    const: 1



  "#size-cells":

    const: 1



  clock-rate:

    $ref: /schemas/types.yaml#/definitions/uint32

    description: Functional clock rate of the SMI controller in Hz.



  st,smi-fast-mode:

    type: boolean

    description: Indicates that the attached flash supports fast read mode.



required:

  - compatible

  - reg

  - clock-rate



unevaluatedProperties: false



examples:

  - |

    flash@fc000000 {

        compatible = "st,spear600-smi";

        #address-cells = <1>;

        #size-cells = <1>;

        reg = <0xfc000000 0x1000>;

        interrupt-parent = <&vic1>;

        interrupts = <12>;

        clock-rate = <50000000>;  /* 50 MHz */



        flash@f8000000 {

            reg = <0xfc000000 0x1000>;

            st,smi-fast-mode;

        };

    };

...