Documentation/devicetree/bindings/ufs/ti,j721e-ufs.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/ufs/ti,j721e-ufs.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: TI J721e UFS Host Controller Glue Driver
   8
   9 maintainers:
  10   - Vignesh Raghavendra <vigneshr@ti.com>
  11
  12 properties:
  13   compatible:
  14     items:
  15       - const: ti,j721e-ufs
  16
  17   reg:
  18     maxItems: 1
  19     description: address of TI UFS glue registers
  20
  21   clocks:
  22     maxItems: 1
  23     description: phandle to the M-PHY clock
  24
  25   power-domains:
  26     maxItems: 1
  27
  28   assigned-clocks:
  29     maxItems: 1
  30
  31   assigned-clock-parents:
  32     maxItems: 1
  33
  34   "#address-cells":
  35     const: 2
  36
  37   "#size-cells":
  38     const: 2
  39
  40   ranges: true
  41
  42 required:
  43   - compatible
  44   - reg
  45   - clocks
  46   - power-domains
  47
  48 patternProperties:
  49   "^ufs@[0-9a-f]+$":
  50     type: object
  51     description: |
  52       Cadence UFS controller node must be the child node. Refer
  53       Documentation/devicetree/bindings/ufs/cdns,ufshc.txt for binding
  54       documentation of child node
  55
  56 additionalProperties: false
  57
  58 examples:
  59   - |
  60     #include <dt-bindings/interrupt-controller/irq.h>
  61     #include <dt-bindings/interrupt-controller/arm-gic.h>
  62
  63     bus {
  64         #address-cells = <2>;
  65         #size-cells = <2>;
  66
  67         ufs-wrapper@4e80000 {
  68             compatible = "ti,j721e-ufs";
  69             reg = <0x0 0x4e80000 0x0 0x100>;
  70             power-domains = <&k3_pds 277>;
  71             clocks = <&k3_clks 277 1>;
  72             assigned-clocks = <&k3_clks 277 1>;
  73             assigned-clock-parents = <&k3_clks 277 4>;
  74
  75             ranges = <0x0 0x0 0x0 0x4e80000 0x0 0x14000>;
  76             #address-cells = <2>;
  77             #size-cells = <2>;
  78
  79             ufs@4000 {
  80                 compatible = "cdns,ufshc-m31-16nm", "jedec,ufs-2.0";
  81                 reg = <0x0 0x4000 0x0 0x10000>;
  82                 interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
  83                 freq-table-hz = <19200000 19200000>;
  84                 power-domains = <&k3_pds 277>;
  85                 clocks = <&k3_clks 277 1>;
  86                 assigned-clocks = <&k3_clks 277 1>;
  87                 assigned-clock-parents = <&k3_clks 277 4>;
  88                 clock-names = "core_clk";
  89             };
  90         };
  91     };