Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/net/dsa/nxp,sja1105.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NXP SJA1105 Automotive Ethernet Switch Family Device Tree Bindings
   8
   9 description:
  10   The SJA1105 SPI interface requires a CS-to-CLK time (t2 in UM10944.pdf) of at
  11   least one half of t_CLK. At an SPI frequency of 1MHz, this means a minimum
  12   cs_sck_delay of 500ns. Ensuring that this SPI timing requirement is observed
  13   depends on the SPI bus master driver.
  14
  15 allOf:
  16   - $ref: "dsa.yaml#"
  17
  18 maintainers:
  19   - Vladimir Oltean <vladimir.oltean@nxp.com>
  20
  21 properties:
  22   compatible:
  23     enum:
  24       - nxp,sja1105e
  25       - nxp,sja1105t
  26       - nxp,sja1105p
  27       - nxp,sja1105q
  28       - nxp,sja1105r
  29       - nxp,sja1105s
  30       - nxp,sja1110a
  31       - nxp,sja1110b
  32       - nxp,sja1110c
  33       - nxp,sja1110d
  34
  35   reg:
  36     maxItems: 1
  37
  38   # Optional container node for the 2 internal MDIO buses of the SJA1110
  39   # (one for the internal 100base-T1 PHYs and the other for the single
  40   # 100base-TX PHY). The "reg" property does not have physical significance.
  41   # The PHY addresses to port correspondence is as follows: for 100base-T1,
  42   # port 5 has PHY 1, port 6 has PHY 2 etc, while for 100base-TX, port 1 has
  43   # PHY 1.
  44   mdios:
  45     type: object
  46
  47     properties:
  48       '#address-cells':
  49         const: 1
  50       '#size-cells':
  51         const: 0
  52
  53     patternProperties:
  54       "^mdio@[0-1]$":
  55         type: object
  56
  57         allOf:
  58           - $ref: "http://devicetree.org/schemas/net/mdio.yaml#"
  59
  60         properties:
  61           compatible:
  62             oneOf:
  63               - enum:
  64                   - nxp,sja1110-base-t1-mdio
  65                   - nxp,sja1110-base-tx-mdio
  66
  67           reg:
  68             oneOf:
  69               - enum:
  70                   - 0
  71                   - 1
  72
  73         required:
  74           - compatible
  75           - reg
  76
  77 required:
  78   - compatible
  79   - reg
  80
  81 unevaluatedProperties: false
  82
  83 examples:
  84   - |
  85     spi {
  86             #address-cells = <1>;
  87             #size-cells = <0>;
  88
  89             ethernet-switch@1 {
  90                     reg = <0x1>;
  91                     compatible = "nxp,sja1105t";
  92
  93                     ethernet-ports {
  94                             #address-cells = <1>;
  95                             #size-cells = <0>;
  96
  97                             port@0 {
  98                                     phy-handle = <&rgmii_phy6>;
  99                                     phy-mode = "rgmii-id";
 100                                     reg = <0>;
 101                             };
 102
 103                             port@1 {
 104                                     phy-handle = <&rgmii_phy3>;
 105                                     phy-mode = "rgmii-id";
 106                                     reg = <1>;
 107                             };
 108
 109                             port@2 {
 110                                     phy-handle = <&rgmii_phy4>;
 111                                     phy-mode = "rgmii-id";
 112                                     reg = <2>;
 113                             };
 114
 115                             port@3 {
 116                                     phy-mode = "rgmii-id";
 117                                     reg = <3>;
 118                             };
 119
 120                             port@4 {
 121                                     ethernet = <&enet2>;
 122                                     phy-mode = "rgmii";
 123                                     reg = <4>;
 124
 125                                     fixed-link {
 126                                             speed = <1000>;
 127                                             full-duplex;
 128                                     };
 129                             };
 130                     };
 131             };
 132     };