xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/aspeed,ast2600-fmc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Aspeed SMC controllers

maintainers:
  - Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
  - Cédric Le Goater <clg@kaod.org>

description: |
  This binding describes the Aspeed Static Memory Controllers (FMC and
  SPI) of the AST2400, AST2500 and AST2600 SOCs.

allOf:
  - $ref: spi-controller.yaml#

properties:
  compatible:
    enum:
      - aspeed,ast2600-fmc
      - aspeed,ast2600-spi
      - aspeed,ast2500-fmc
      - aspeed,ast2500-spi
      - aspeed,ast2400-fmc
      - aspeed,ast2400-spi

  reg:
    items:
      - description: registers
      - description: memory mapping

  clocks:
    maxItems: 1

  interrupts:
    maxItems: 1

required:
  - compatible
  - reg
  - clocks

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/aspeed-scu-ic.h>
    #include <dt-bindings/clock/ast2600-clock.h>

    spi@1e620000 {
        reg = <0x1e620000 0xc4>, <0x20000000 0x10000000>;
        #address-cells = <1>;
        #size-cells = <0>;
        compatible = "aspeed,ast2600-fmc";
        clocks = <&syscon ASPEED_CLK_AHB>;
        interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;

        flash@0 {
            reg = < 0 >;
            compatible = "jedec,spi-nor";
            spi-max-frequency = <50000000>;
            spi-rx-bus-width = <2>;
        };

        flash@1 {
            reg = < 1 >;
            compatible = "jedec,spi-nor";
            spi-max-frequency = <50000000>;
            spi-rx-bus-width = <2>;
        };

        flash@2 {
            reg = < 2 >;
            compatible = "jedec,spi-nor";
            spi-max-frequency = <50000000>;
            spi-rx-bus-width = <2>;
        };
    };