Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/mmc/brcm,sdhci-brcmstb.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Broadcom BRCMSTB/BMIPS SDHCI Controller
   8
   9 maintainers:
  10   - Al Cooper <alcooperx@gmail.com>
  11   - Florian Fainelli <f.fainelli@gmail.com>
  12
  13 properties:
  14   compatible:
  15     oneOf:
  16       - items:
  17           - enum:
  18               - brcm,bcm7216-sdhci
  19           - const: brcm,bcm7445-sdhci
  20           - const: brcm,sdhci-brcmstb
  21       - items:
  22           - enum:
  23               - brcm,bcm7445-sdhci
  24           - const: brcm,sdhci-brcmstb
  25       - items:
  26           - enum:
  27               - brcm,bcm7425-sdhci
  28           - const: brcm,sdhci-brcmstb
  29
  30   reg:
  31     maxItems: 2
  32
  33   reg-names:
  34     items:
  35       - const: host
  36       - const: cfg
  37
  38   interrupts:
  39     maxItems: 1
  40
  41   clocks:
  42     minItems: 1
  43     items:
  44       - description: handle to core clock for the sdhci controller
  45       - description: handle to improved 150Mhz clock for sdhci controller (Optional clock)
  46
  47   clock-names:
  48     minItems: 1
  49     items:
  50       - const: sw_sdio
  51       - const: sdio_freq # Optional clock
  52
  53   clock-frequency:
  54     description:
  55       Maximum operating frequency of sdio_freq sdhci controller clock
  56     $ref: /schemas/types.yaml#/definitions/uint32
  57     minimum: 100000000
  58     maximum: 150000000
  59
  60   sdhci,auto-cmd12:
  61     type: boolean
  62     description: Specifies that controller should use auto CMD12
  63
  64 allOf:
  65   - $ref: mmc-controller.yaml#
  66   - if:
  67       properties:
  68         clock-names:
  69           contains:
  70             const: sdio_freq
  71
  72     then:
  73       required:
  74         - clock-frequency
  75
  76 required:
  77   - compatible
  78   - reg
  79   - interrupts
  80   - clocks
  81   - clock-names
  82
  83 unevaluatedProperties: false
  84
  85 examples:
  86   - |
  87     mmc@84b0000 {
  88       compatible = "brcm,bcm7216-sdhci",
  89                    "brcm,bcm7445-sdhci",
  90                    "brcm,sdhci-brcmstb";
  91       reg = <0x84b0000 0x260>, <0x84b0300 0x200>;
  92       reg-names = "host", "cfg";
  93       sd-uhs-sdr50;
  94       sd-uhs-ddr50;
  95       sd-uhs-sdr104;
  96       sdhci,auto-cmd12;
  97       interrupts = <0x0 0x26 0x4>;
  98       clocks = <&scmi_clk 245>;
  99       clock-names = "sw_sdio";
 100     };
 101
 102     mmc@84b1000 {
 103       compatible = "brcm,bcm7216-sdhci",
 104                    "brcm,bcm7445-sdhci",
 105                    "brcm,sdhci-brcmstb";
 106       reg = <0x84b1000 0x260>, <0x84b1300 0x200>;
 107       reg-names = "host", "cfg";
 108       mmc-ddr-1_8v;
 109       mmc-hs200-1_8v;
 110       mmc-hs400-1_8v;
 111       mmc-hs400-enhanced-strobe;
 112       supports-cqe;
 113       non-removable;
 114       bus-width = <0x8>;
 115       interrupts = <0x0 0x27 0x4>;
 116       clocks = <&scmi_clk 245>;
 117       clock-names = "sw_sdio";
 118     };