xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml (revision 62306a36)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/brcm,sdhci-brcmstb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Broadcom BRCMSTB/BMIPS SDHCI Controller

maintainers:
  - Al Cooper <alcooperx@gmail.com>
  - Florian Fainelli <f.fainelli@gmail.com>

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - brcm,bcm7216-sdhci
          - const: brcm,bcm7445-sdhci
          - const: brcm,sdhci-brcmstb
      - items:
          - enum:
              - brcm,bcm7445-sdhci
          - const: brcm,sdhci-brcmstb
      - items:
          - enum:
              - brcm,bcm7425-sdhci
          - const: brcm,sdhci-brcmstb

  reg:
    maxItems: 2

  reg-names:
    items:
      - const: host
      - const: cfg

  interrupts:
    maxItems: 1

  clocks:
    minItems: 1
    items:
      - description: handle to core clock for the sdhci controller
      - description: handle to improved 150Mhz clock for sdhci controller (Optional clock)

  clock-names:
    minItems: 1
    items:
      - const: sw_sdio
      - const: sdio_freq # Optional clock

  clock-frequency:
    description:
      Maximum operating frequency of sdio_freq sdhci controller clock
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 100000000
    maximum: 150000000

  sdhci,auto-cmd12:
    type: boolean
    description: Specifies that controller should use auto CMD12

allOf:
  - $ref: mmc-controller.yaml#
  - if:
      properties:
        clock-names:
          contains:
            const: sdio_freq

    then:
      required:
        - clock-frequency

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

unevaluatedProperties: false

examples:
  - |
    mmc@84b0000 {
      compatible = "brcm,bcm7216-sdhci",
                   "brcm,bcm7445-sdhci",
                   "brcm,sdhci-brcmstb";
      reg = <0x84b0000 0x260>, <0x84b0300 0x200>;
      reg-names = "host", "cfg";
      sd-uhs-sdr50;
      sd-uhs-ddr50;
      sd-uhs-sdr104;
      sdhci,auto-cmd12;
      interrupts = <0x0 0x26 0x4>;
      clocks = <&scmi_clk 245>;
      clock-names = "sw_sdio";
    };

    mmc@84b1000 {
      compatible = "brcm,bcm7216-sdhci",
                   "brcm,bcm7445-sdhci",
                   "brcm,sdhci-brcmstb";
      reg = <0x84b1000 0x260>, <0x84b1300 0x200>;
      reg-names = "host", "cfg";
      mmc-ddr-1_8v;
      mmc-hs200-1_8v;
      mmc-hs400-1_8v;
      mmc-hs400-enhanced-strobe;
      supports-cqe;
      non-removable;
      bus-width = <0x8>;
      interrupts = <0x0 0x27 0x4>;
      clocks = <&scmi_clk 245>;
      clock-names = "sw_sdio";
    };