Documentation/devicetree/bindings/net/ti,cpsw-switch.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/ti,cpsw-switch.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: TI SoC Ethernet Switch Controller (CPSW) Device Tree Bindings
   8
   9 maintainers:
  10   - Grygorii Strashko <grygorii.strashko@ti.com>
  11   - Sekhar Nori <nsekhar@ti.com>
  12
  13 description:
  14   The 3-port switch gigabit ethernet subsystem provides ethernet packet
  15   communication and can be configured as an ethernet switch. It provides the
  16   gigabit media independent interface (GMII),reduced gigabit media
  17   independent interface (RGMII), reduced media independent interface (RMII),
  18   the management data input output (MDIO) for physical layer device (PHY)
  19   management.
  20
  21 properties:
  22   compatible:
  23     oneOf:
  24       - const: ti,cpsw-switch
  25       - items:
  26           - const: ti,am335x-cpsw-switch
  27           - const: ti,cpsw-switch
  28       - items:
  29           - const: ti,am4372-cpsw-switch
  30           - const: ti,cpsw-switch
  31       - items:
  32           - const: ti,dra7-cpsw-switch
  33           - const: ti,cpsw-switch
  34
  35   reg:
  36     maxItems: 1
  37     description:
  38       The physical base address and size of full the CPSW module IO range
  39
  40   '#address-cells':
  41     const: 1
  42
  43   '#size-cells':
  44     const: 1
  45
  46   ranges: true
  47
  48   clocks:
  49     maxItems: 1
  50     description: CPSW functional clock
  51
  52   clock-names:
  53     items:
  54       - const: fck
  55
  56   interrupts:
  57     items:
  58       - description: RX_THRESH interrupt
  59       - description: RX interrupt
  60       - description: TX interrupt
  61       - description: MISC interrupt
  62
  63   interrupt-names:
  64     items:
  65       - const: "rx_thresh"
  66       - const: "rx"
  67       - const: "tx"
  68       - const: "misc"
  69
  70   pinctrl-names: true
  71
  72   syscon:
  73     $ref: /schemas/types.yaml#/definitions/phandle
  74     description:
  75       Phandle to the system control device node which provides access to
  76       efuse IO range with MAC addresses
  77
  78   ethernet-ports:
  79     type: object
  80     properties:
  81       '#address-cells':
  82         const: 1
  83       '#size-cells':
  84         const: 0
  85
  86     patternProperties:
  87       "^port@[0-9]+$":
  88         type: object
  89         description: CPSW external ports
  90
  91         allOf:
  92           - $ref: ethernet-controller.yaml#
  93
  94         properties:
  95           reg:
  96             items:
  97               - enum: [1, 2]
  98             description: CPSW port number
  99
 100           phys:
 101             maxItems: 1
 102             description: phandle on phy-gmii-sel PHY
 103
 104           label:
 105             description: label associated with this port
 106
 107           ti,dual-emac-pvid:
 108             $ref: /schemas/types.yaml#/definitions/uint32
 109             minimum: 1
 110             maximum: 1024
 111             description:
 112               Specifies default PORT VID to be used to segregate
 113               ports. Default value - CPSW port number.
 114
 115         required:
 116           - reg
 117           - phys
 118
 119   cpts:
 120     type: object
 121     description:
 122       The Common Platform Time Sync (CPTS) module
 123
 124     properties:
 125       clocks:
 126         maxItems: 1
 127         description: CPTS reference clock
 128
 129       clock-names:
 130         items:
 131           - const: cpts
 132
 133       cpts_clock_mult:
 134         $ref: /schemas/types.yaml#/definitions/uint32
 135         description:
 136           Numerator to convert input clock ticks into ns
 137
 138       cpts_clock_shift:
 139         $ref: /schemas/types.yaml#/definitions/uint32
 140         description:
 141           Denominator to convert input clock ticks into ns.
 142           Mult and shift will be calculated basing on CPTS rftclk frequency if
 143           both cpts_clock_shift and cpts_clock_mult properties are not provided.
 144
 145     required:
 146       - clocks
 147       - clock-names
 148
 149 patternProperties:
 150   "^mdio@":
 151     type: object
 152     description:
 153       CPSW MDIO bus.
 154     $ref: "ti,davinci-mdio.yaml#"
 155
 156
 157 required:
 158   - compatible
 159   - reg
 160   - ranges
 161   - clocks
 162   - clock-names
 163   - interrupts
 164   - interrupt-names
 165   - '#address-cells'
 166   - '#size-cells'
 167
 168 additionalProperties: false
 169
 170 examples:
 171   - |
 172     #include <dt-bindings/interrupt-controller/irq.h>
 173     #include <dt-bindings/interrupt-controller/arm-gic.h>
 174     #include <dt-bindings/clock/dra7.h>
 175
 176     mac_sw: switch@0 {
 177         compatible = "ti,dra7-cpsw-switch","ti,cpsw-switch";
 178         reg = <0x0 0x4000>;
 179         ranges = <0 0 0x4000>;
 180         clocks = <&gmac_main_clk>;
 181         clock-names = "fck";
 182         #address-cells = <1>;
 183         #size-cells = <1>;
 184         syscon = <&scm_conf>;
 185
 186         interrupts = <GIC_SPI 334 IRQ_TYPE_LEVEL_HIGH>,
 187                      <GIC_SPI 335 IRQ_TYPE_LEVEL_HIGH>,
 188                      <GIC_SPI 336 IRQ_TYPE_LEVEL_HIGH>,
 189                      <GIC_SPI 337 IRQ_TYPE_LEVEL_HIGH>;
 190         interrupt-names = "rx_thresh", "rx", "tx", "misc";
 191
 192         ethernet-ports {
 193                 #address-cells = <1>;
 194                 #size-cells = <0>;
 195
 196                 cpsw_port1: port@1 {
 197                         reg = <1>;
 198                         label = "port1";
 199                         mac-address = [ 00 00 00 00 00 00 ];
 200                         phys = <&phy_gmii_sel 1>;
 201                         phy-handle = <&ethphy0_sw>;
 202                         phy-mode = "rgmii";
 203                         ti,dual-emac-pvid = <1>;
 204                 };
 205
 206                 cpsw_port2: port@2 {
 207                         reg = <2>;
 208                         label = "wan";
 209                         mac-address = [ 00 00 00 00 00 00 ];
 210                         phys = <&phy_gmii_sel 2>;
 211                         phy-handle = <&ethphy1_sw>;
 212                         phy-mode = "rgmii";
 213                         ti,dual-emac-pvid = <2>;
 214                 };
 215         };
 216
 217         davinci_mdio_sw: mdio@1000 {
 218                 compatible = "ti,cpsw-mdio","ti,davinci_mdio";
 219                 reg = <0x1000 0x100>;
 220                 clocks = <&gmac_clkctrl DRA7_GMAC_GMAC_CLKCTRL 0>;
 221                 clock-names = "fck";
 222                 #address-cells = <1>;
 223                 #size-cells = <0>;
 224                 bus_freq = <1000000>;
 225
 226                 ethphy0_sw: ethernet-phy@0 {
 227                         reg = <0>;
 228                 };
 229
 230                 ethphy1_sw: ethernet-phy@1 {
 231                         reg = <1>;
 232                 };
 233         };
 234
 235         cpts {
 236                 clocks = <&gmac_clkctrl DRA7_GMAC_GMAC_CLKCTRL 25>;
 237                 clock-names = "cpts";
 238         };
 239     };