ufs-common.yaml

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    1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/ufs/ufs-common.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Common properties for Universal Flash Storage (UFS) Host Controllers
    8 
    9 maintainers:
   10   - Alim Akhtar <alim.akhtar@samsung.com>
   11   - Avri Altman <avri.altman@wdc.com>
   12 
   13 properties:
   14   clocks: true
   15 
   16   clock-names: true
   17 
   18   freq-table-hz:
   19     items:
   20       items:
   21         - description: Minimum frequency for given clock in Hz
   22         - description: Maximum frequency for given clock in Hz
   23     description: |
   24       Array of <min max> operating frequencies in Hz stored in the same order
   25       as the clocks property. If this property is not defined or a value in the
   26       array is "0" then it is assumed that the frequency is set by the parent
   27       clock or a fixed rate clock source.
   28 
   29   interrupts:
   30     maxItems: 1
   31 
   32   lanes-per-direction:
   33     $ref: /schemas/types.yaml#/definitions/uint32
   34     enum: [1, 2]
   35     default: 2
   36     description:
   37       Number of lanes available per direction.  Note that it is assume same
   38       number of lanes is used both directions at once.
   39 
   40   vdd-hba-supply:
   41     description:
   42       Phandle to UFS host controller supply regulator node.
   43 
   44   vcc-supply:
   45     description:
   46       Phandle to VCC supply regulator node.
   47 
   48   vccq-supply:
   49     description:
   50       Phandle to VCCQ supply regulator node.
   51 
   52   vccq2-supply:
   53     description:
   54       Phandle to VCCQ2 supply regulator node.
   55 
   56   vcc-supply-1p8:
   57     type: boolean
   58     description:
   59       For embedded UFS devices, valid VCC range is 1.7-1.95V or 2.7-3.6V. This
   60       boolean property when set, specifies to use low voltage range of
   61       1.7-1.95V. Note for external UFS cards this property is invalid and valid
   62       VCC range is always 2.7-3.6V.
   63 
   64   vcc-max-microamp:
   65     description:
   66       Specifies max. load that can be drawn from VCC supply.
   67 
   68   vccq-max-microamp:
   69     description:
   70       Specifies max. load that can be drawn from VCCQ supply.
   71 
   72   vccq2-max-microamp:
   73     description:
   74       Specifies max. load that can be drawn from VCCQ2 supply.
   75 
   76 dependencies:
   77   freq-table-hz: [ 'clocks' ]
   78 
   79 required:
   80   - interrupts
   81 
   82 additionalProperties: true

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/ufs/ufs-common.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/ufs/ufs-common.yaml