Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/usb/nvidia,tegra-xudc.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NVIDIA Tegra XUSB device mode controller (XUDC)
   8
   9 description:
  10   The Tegra XUDC controller supports both USB 2.0 HighSpeed/FullSpeed and
  11   USB 3.0 SuperSpeed protocols.
  12
  13 maintainers:
  14   - Nagarjuna Kristam <nkristam@nvidia.com>
  15   - JC Kuo <jckuo@nvidia.com>
  16   - Thierry Reding <treding@nvidia.com>
  17
  18 properties:
  19   compatible:
  20     items:
  21       - enum:
  22           - nvidia,tegra210-xudc # For Tegra210
  23           - nvidia,tegra186-xudc # For Tegra186
  24           - nvidia,tegra194-xudc # For Tegra194
  25           - nvidia,tegra234-xudc # For Tegra234
  26
  27   reg:
  28     minItems: 2
  29     items:
  30       - description: XUSB device controller registers
  31       - description: XUSB device PCI Config registers
  32       - description: XUSB device registers.
  33
  34   reg-names:
  35     minItems: 2
  36     items:
  37       - const: base
  38       - const: fpci
  39       - const: ipfs
  40
  41   interrupts:
  42     maxItems: 1
  43     description: Must contain the XUSB device interrupt.
  44
  45   clocks:
  46     minItems: 4
  47     items:
  48       - description: Clock to enable core XUSB dev clock.
  49       - description: Clock to enable XUSB super speed clock.
  50       - description: Clock to enable XUSB super speed dev clock.
  51       - description: Clock to enable XUSB high speed dev clock.
  52       - description: Clock to enable XUSB full speed dev clock.
  53
  54   clock-names:
  55     minItems: 4
  56     items:
  57       - const: dev
  58       - const: ss
  59       - const: ss_src
  60       - const: fs_src
  61       - const: hs_src
  62
  63   interconnects:
  64     items:
  65       - description: memory read client
  66       - description: memory write client
  67
  68   interconnect-names:
  69     items:
  70       - const: dma-mem # read
  71       - const: write
  72
  73   iommus:
  74     maxItems: 1
  75
  76   power-domains:
  77     items:
  78       - description: XUSBB(device) power-domain
  79       - description: XUSBA(superspeed) power-domain
  80
  81   power-domain-names:
  82     items:
  83       - const: dev
  84       - const: ss
  85
  86   nvidia,xusb-padctl:
  87     $ref: /schemas/types.yaml#/definitions/phandle
  88     description:
  89       phandle to the XUSB pad controller that is used to configure the USB pads
  90       used by the XUDC controller.
  91
  92   phys:
  93     minItems: 1
  94     maxItems: 2
  95     description:
  96       Must contain an entry for each entry in phy-names.
  97       See ../phy/phy-bindings.txt for details.
  98
  99   phy-names:
 100     minItems: 1
 101     items:
 102       - const: usb2-0
 103       - const: usb3-0
 104
 105   avddio-usb-supply:
 106     description: PCIe/USB3 analog logic power supply. Must supply 1.05 V.
 107
 108   hvdd-usb-supply:
 109     description: USB controller power supply. Must supply 3.3 V.
 110
 111   dma-coherent: true
 112
 113 required:
 114   - compatible
 115   - reg
 116   - reg-names
 117   - interrupts
 118   - clocks
 119   - clock-names
 120   - power-domains
 121   - power-domain-names
 122   - nvidia,xusb-padctl
 123   - phys
 124   - phy-names
 125
 126 allOf:
 127   - if:
 128       properties:
 129         compatible:
 130           contains:
 131             enum:
 132               - nvidia,tegra210-xudc
 133     then:
 134       properties:
 135         reg:
 136           minItems: 3
 137         reg-names:
 138           minItems: 3
 139         clocks:
 140           minItems: 5
 141         clock-names:
 142           minItems: 5
 143       required:
 144         - avddio-usb-supply
 145         - hvdd-usb-supply
 146
 147   - if:
 148       properties:
 149         compatible:
 150           contains:
 151             enum:
 152               - nvidia,tegra186-xudc
 153               - nvidia,tegra194-xudc
 154               - nvidia,tegra234-xudc
 155     then:
 156       properties:
 157         reg:
 158           maxItems: 2
 159         reg-names:
 160           maxItems: 2
 161         clocks:
 162           maxItems: 4
 163         clock-names:
 164           maxItems: 4
 165
 166   - if:
 167       properties:
 168         compatible:
 169           contains:
 170             enum:
 171               - nvidia,tegra194-xudc
 172               - nvidia,tegra234-xudc
 173     then:
 174       required:
 175         - dma-coherent
 176
 177 additionalProperties: false
 178
 179 examples:
 180   - |
 181     #include <dt-bindings/clock/tegra210-car.h>
 182     #include <dt-bindings/gpio/tegra-gpio.h>
 183     #include <dt-bindings/interrupt-controller/arm-gic.h>
 184
 185     usb@700d0000 {
 186         compatible = "nvidia,tegra210-xudc";
 187         reg = <0x700d0000 0x8000>,
 188               <0x700d8000 0x1000>,
 189               <0x700d9000 0x1000>;
 190         reg-names = "base", "fpci", "ipfs";
 191
 192         interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
 193
 194         clocks = <&tegra_car TEGRA210_CLK_XUSB_DEV>,
 195                  <&tegra_car TEGRA210_CLK_XUSB_SS>,
 196                  <&tegra_car TEGRA210_CLK_XUSB_SSP_SRC>,
 197                  <&tegra_car TEGRA210_CLK_XUSB_FS_SRC>,
 198                  <&tegra_car TEGRA210_CLK_XUSB_HS_SRC>;
 199         clock-names = "dev", "ss", "ss_src", "fs_src", "hs_src";
 200
 201         power-domains = <&pd_xusbdev>, <&pd_xusbss>;
 202         power-domain-names = "dev", "ss";
 203
 204         nvidia,xusb-padctl = <&padctl>;
 205
 206         phys = <&micro_b>;
 207         phy-names = "usb2-0";
 208
 209         avddio-usb-supply = <&vdd_pex_1v05>;
 210         hvdd-usb-supply = <&vdd_3v3_sys>;
 211     };