Bindings/mmc/synopsys-dw-mshc-common.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/mmc/synopsys-dw-mshc-common.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Synopsys Designware Mobile Storage Host Controller Common Properties
   8
   9 allOf:
  10   - $ref: mmc-controller.yaml#
  11
  12 maintainers:
  13   - Ulf Hansson <ulf.hansson@linaro.org>
  14
  15 # Everything else is described in the common file
  16 properties:
  17   resets:
  18     maxItems: 1
  19
  20   reset-names:
  21     const: reset
  22
  23   clock-frequency:
  24     description:
  25       Should be the frequency (in Hz) of the ciu clock.  If this
  26       is specified and the ciu clock is specified then we'll try to set the ciu
  27       clock to this at probe time.
  28
  29   fifo-depth:
  30     description:
  31       The maximum size of the tx/rx fifo's. If this property is not
  32       specified, the default value of the fifo size is determined from the
  33       controller registers.
  34     $ref: /schemas/types.yaml#/definitions/uint32
  35
  36   card-detect-delay:
  37     description:
  38       Delay in milli-seconds before detecting card after card
  39       insert event. The default value is 0.
  40     $ref: /schemas/types.yaml#/definitions/uint32
  41     default: 0
  42
  43   data-addr:
  44     description:
  45       Override fifo address with value provided by DT. The default FIFO reg
  46       offset is assumed as 0x100 (version < 0x240A) and 0x200(version >= 0x240A)
  47       by driver. If the controller does not follow this rule, please use
  48       this property to set fifo address in device tree.
  49     $ref: /schemas/types.yaml#/definitions/uint32
  50
  51   fifo-watermark-aligned:
  52     description:
  53       Data done irq is expected if data length is less than
  54       watermark in PIO mode. But fifo watermark is requested to be aligned
  55       with data length in some SoC so that TX/RX irq can be generated with
  56       data done irq. Add this watermark quirk to mark this requirement and
  57       force fifo watermark setting accordingly.
  58     $ref: /schemas/types.yaml#/definitions/flag
  59
  60   dmas:
  61     maxItems: 1
  62
  63   dma-names:
  64     const: rx-tx
  65
  66 additionalProperties: true