Documentation/devicetree/bindings/mmc/microchip,dw-sparx5-sdhci.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/microchip,dw-sparx5-sdhci.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Microchip Sparx5 Mobile Storage Host Controller Binding
   8
   9 allOf:
  10   - $ref: "mmc-controller.yaml"
  11
  12 maintainers:
  13   - Lars Povlsen <lars.povlsen@microchip.com>
  14
  15 # Everything else is described in the common file
  16 properties:
  17   compatible:
  18     const: microchip,dw-sparx5-sdhci
  19
  20   reg:
  21     maxItems: 1
  22
  23   interrupts:
  24     maxItems: 1
  25
  26   clocks:
  27     maxItems: 1
  28     description:
  29       Handle to "core" clock for the sdhci controller.
  30
  31   clock-names:
  32     items:
  33       - const: core
  34
  35   microchip,clock-delay:
  36     description: Delay clock to card to meet setup time requirements.
  37       Each step increase by 1.25ns.
  38     $ref: "/schemas/types.yaml#/definitions/uint32"
  39     minimum: 1
  40     maximum: 15
  41
  42 required:
  43   - compatible
  44   - reg
  45   - interrupts
  46   - clocks
  47   - clock-names
  48
  49 examples:
  50   - |
  51     #include <dt-bindings/interrupt-controller/arm-gic.h>
  52     #include <dt-bindings/clock/microchip,sparx5.h>
  53     sdhci0: mmc@600800000 {
  54         compatible = "microchip,dw-sparx5-sdhci";
  55         reg = <0x00800000 0x1000>;
  56         pinctrl-0 = <&emmc_pins>;
  57         pinctrl-names = "default";
  58         clocks = <&clks CLK_ID_AUX1>;
  59         clock-names = "core";
  60         assigned-clocks = <&clks CLK_ID_AUX1>;
  61         assigned-clock-rates = <800000000>;
  62         interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
  63         bus-width = <8>;
  64         microchip,clock-delay = <10>;
  65     };