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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/net/dsa/vitesse,vsc73xx.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Vitesse VSC73xx DSA Switches8 9maintainers:10 - Linus Walleij <linus.walleij@linaro.org>11 12description:13 The Vitesse DSA Switches were produced in the early-to-mid 2000s.14 15 The Vitesse company has been acquired by Microsemi and Microsemi has16 been acquired Microchip but the new owner retains this vendor branding.17 18 The currently supported switch chips are19 Vitesse VSC7385 SparX-G5 5+1-port Integrated Gigabit Ethernet Switch20 Vitesse VSC7388 SparX-G8 8-port Integrated Gigabit Ethernet Switch21 Vitesse VSC7395 SparX-G5e 5+1-port Integrated Gigabit Ethernet Switch22 Vitesse VSC7398 SparX-G8e 8-port Integrated Gigabit Ethernet Switch23 24 This switch can use one of two different management interfaces.25 26 If SPI interface is used, the device tree node is an SPI device so it must27 reside inside a SPI bus device tree node, see spi/spi-bus.txt28 29 When the chip is connected to a parallel memory bus and work in memory-mapped30 I/O mode, a platform device is used to represent the vsc73xx. In this case it31 must reside inside a platform bus device tree node.32 33properties:34 compatible:35 enum:36 - vitesse,vsc738537 - vitesse,vsc738838 - vitesse,vsc739539 - vitesse,vsc739840 41 reg:42 maxItems: 143 44 gpio-controller: true45 "#gpio-cells":46 const: 247 48 reset-gpios:49 description: GPIO to be used to reset the whole device50 maxItems: 151 52allOf:53 - $ref: dsa.yaml#/$defs/ethernet-ports54 55patternProperties:56 "^(ethernet-)?ports$":57 additionalProperties: true58 patternProperties:59 "^(ethernet-)?port@6$":60 allOf:61 - if:62 properties:63 phy-mode:64 contains:65 enum:66 - rgmii67 then:68 properties:69 rx-internal-delay-ps:70 $ref: "#/$defs/internal-delay-ps"71 tx-internal-delay-ps:72 $ref: "#/$defs/internal-delay-ps"73 74# This checks if reg is a chipselect so the device is on an SPI75# bus, the if-clause will fail if reg is a tuple such as for a76# platform device.77if:78 properties:79 reg:80 minimum: 081 maximum: 25682then:83 $ref: /schemas/spi/spi-peripheral-props.yaml#84 85required:86 - compatible87 - reg88 89$defs:90 internal-delay-ps:91 description:92 Disable tunable delay lines using 0 ps, or enable them and select93 the phase between 1400 ps and 2000 ps in increments of 300 ps.94 default: 200095 enum:96 [0, 1400, 1700, 2000]97 98unevaluatedProperties: false99 100examples:101 - |102 #include <dt-bindings/gpio/gpio.h>103 104 spi {105 #address-cells = <1>;106 #size-cells = <0>;107 108 ethernet-switch@0 {109 compatible = "vitesse,vsc7395";110 reg = <0>;111 spi-max-frequency = <2500000>;112 gpio-controller;113 #gpio-cells = <2>;114 115 ethernet-ports {116 #address-cells = <1>;117 #size-cells = <0>;118 119 ethernet-port@0 {120 reg = <0>;121 label = "lan1";122 };123 ethernet-port@1 {124 reg = <1>;125 label = "lan2";126 };127 ethernet-port@2 {128 reg = <2>;129 label = "lan3";130 };131 ethernet-port@3 {132 reg = <3>;133 label = "lan4";134 };135 ethernet-port@6 {136 reg = <6>;137 ethernet = <&gmac1>;138 phy-mode = "rgmii";139 rx-internal-delay-ps = <0>;140 tx-internal-delay-ps = <0>;141 fixed-link {142 speed = <1000>;143 full-duplex;144 pause;145 };146 };147 };148 };149 };150 151 bus {152 #address-cells = <1>;153 #size-cells = <1>;154 155 ethernet-switch@10000000 {156 compatible = "vitesse,vsc7385";157 reg = <0x10000000 0x20000>;158 reset-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;159 160 ethernet-ports {161 #address-cells = <1>;162 #size-cells = <0>;163 164 ethernet-port@0 {165 reg = <0>;166 label = "lan1";167 };168 ethernet-port@1 {169 reg = <1>;170 label = "lan2";171 };172 ethernet-port@2 {173 reg = <2>;174 label = "lan3";175 };176 ethernet-port@3 {177 reg = <3>;178 label = "lan4";179 };180 ethernet-port@6 {181 reg = <6>;182 ethernet = <&enet0>;183 rx-internal-delay-ps = <0>;184 tx-internal-delay-ps = <0>;185 phy-mode = "rgmii";186 fixed-link {187 speed = <1000>;188 full-duplex;189 pause;190 };191 };192 };193 };194 };195