snps,dw-apb-ssi.yaml

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    1 # SPDX-License-Identifier: GPL-2.0-only
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/spi/snps,dw-apb-ssi.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Synopsys DesignWare AMBA 2.0 Synchronous Serial Interface
    8 
    9 maintainers:
   10   - Mark Brown <broonie@kernel.org>
   11 
   12 allOf:
   13   - $ref: "spi-controller.yaml#"
   14   - if:
   15       properties:
   16         compatible:
   17           contains:
   18             enum:
   19               - mscc,ocelot-spi
   20               - mscc,jaguar2-spi
   21     then:
   22       properties:
   23         reg:
   24           minItems: 2
   25   - if:
   26       properties:
   27         compatible:
   28           contains:
   29             enum:
   30               - baikal,bt1-sys-ssi
   31     then:
   32       properties:
   33         mux-controls:
   34           maxItems: 1
   35       required:
   36         - mux-controls
   37     else:
   38       required:
   39         - interrupts
   40 
   41 properties:
   42   compatible:
   43     oneOf:
   44       - description: Generic DW SPI Controller
   45         enum:
   46           - snps,dw-apb-ssi
   47           - snps,dwc-ssi-1.01a
   48       - description: Microsemi Ocelot/Jaguar2 SoC SPI Controller
   49         items:
   50           - enum:
   51               - mscc,ocelot-spi
   52               - mscc,jaguar2-spi
   53           - const: snps,dw-apb-ssi
   54       - description: Microchip Sparx5 SoC SPI Controller
   55         const: microchip,sparx5-spi
   56       - description: Amazon Alpine SPI Controller
   57         const: amazon,alpine-dw-apb-ssi
   58       - description: Renesas RZ/N1 SPI Controller
   59         items:
   60           - const: renesas,rzn1-spi
   61           - const: snps,dw-apb-ssi
   62       - description: Intel Keem Bay SPI Controller
   63         const: intel,keembay-ssi
   64       - description: Intel Thunder Bay SPI Controller
   65         const: intel,thunderbay-ssi
   66       - description: Baikal-T1 SPI Controller
   67         const: baikal,bt1-ssi
   68       - description: Baikal-T1 System Boot SPI Controller
   69         const: baikal,bt1-sys-ssi
   70       - description: Canaan Kendryte K210 SoS SPI Controller
   71         const: canaan,k210-spi
   72       - description: Renesas RZ/N1 SPI Controller
   73         items:
   74           - enum:
   75               - renesas,r9a06g032-spi # RZ/N1D
   76               - renesas,r9a06g033-spi # RZ/N1S
   77           - const: renesas,rzn1-spi   # RZ/N1
   78 
   79   reg:
   80     minItems: 1
   81     items:
   82       - description: DW APB SSI controller memory mapped registers
   83       - description: SPI MST region map or directly mapped SPI ROM
   84 
   85   interrupts:
   86     maxItems: 1
   87 
   88   clocks:
   89     minItems: 1
   90     items:
   91       - description: SPI Controller reference clock source
   92       - description: APB interface clock source
   93 
   94   clock-names:
   95     minItems: 1
   96     items:
   97       - const: ssi_clk
   98       - const: pclk
   99 
  100   resets:
  101     maxItems: 1
  102 
  103   reset-names:
  104     const: spi
  105 
  106   reg-io-width:
  107     $ref: /schemas/types.yaml#/definitions/uint32
  108     description: I/O register width (in bytes) implemented by this device
  109     default: 4
  110     enum: [ 2, 4 ]
  111 
  112   num-cs:
  113     default: 4
  114     minimum: 1
  115     maximum: 4
  116 
  117   dmas:
  118     items:
  119       - description: TX DMA Channel
  120       - description: RX DMA Channel
  121 
  122   dma-names:
  123     items:
  124       - const: tx
  125       - const: rx
  126 
  127   rx-sample-delay-ns:
  128     default: 0
  129     description: |
  130       Default value of the rx-sample-delay-ns property.
  131       This value will be used if the property is not explicitly defined
  132       for a SPI slave device.
  133 
  134       SPI Rx sample delay offset, unit is nanoseconds.
  135       The delay from the default sample time before the actual sample of the
  136       rxd input signal occurs. The "rx_sample_delay" is an optional feature
  137       of the designware controller, and the upper limit is also subject to
  138       controller configuration.
  139 
  140 patternProperties:
  141   "^.*@[0-9a-f]+$":
  142     type: object
  143     properties:
  144       reg:
  145         minimum: 0
  146         maximum: 3
  147 
  148 unevaluatedProperties: false
  149 
  150 required:
  151   - compatible
  152   - reg
  153   - "#address-cells"
  154   - "#size-cells"
  155   - clocks
  156 
  157 examples:
  158   - |
  159     spi@fff00000 {
  160       compatible = "snps,dw-apb-ssi";
  161       reg = <0xfff00000 0x1000>;
  162       #address-cells = <1>;
  163       #size-cells = <0>;
  164       interrupts = <0 154 4>;
  165       clocks = <&spi_m_clk>;
  166       num-cs = <2>;
  167       cs-gpios = <&gpio0 13 0>,
  168                  <&gpio0 14 0>;
  169       rx-sample-delay-ns = <3>;
  170       flash@1 {
  171         compatible = "spi-nand";
  172         reg = <1>;
  173         rx-sample-delay-ns = <7>;
  174       };
  175     };
  176   - |
  177     spi@1f040100 {
  178       compatible = "baikal,bt1-sys-ssi";
  179       reg = <0x1f040100 0x900>,
  180             <0x1c000000 0x1000000>;
  181       #address-cells = <1>;
  182       #size-cells = <0>;
  183       mux-controls = <&boot_mux>;
  184       clocks = <&ccu_sys>;
  185       clock-names = "ssi_clk";
  186     };
  187 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/spi/snps,dw-apb-ssi.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/spi/snps,dw-apb-ssi.yaml