1# SPDX-License-Identifier: GPL-2.0 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/net/fsl,fec.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Freescale Fast Ethernet Controller (FEC) 8 9maintainers: 10 - Shawn Guo <shawnguo@kernel.org> 11 - Wei Fang <wei.fang@nxp.com> 12 - NXP Linux Team <linux-imx@nxp.com> 13 14allOf: 15 - $ref: ethernet-controller.yaml# 16 17properties: 18 compatible: 19 oneOf: 20 - enum: 21 - fsl,imx25-fec 22 - fsl,imx27-fec 23 - fsl,imx28-fec 24 - fsl,imx6q-fec 25 - fsl,mvf600-fec 26 - fsl,s32v234-fec 27 - items: 28 - enum: 29 - fsl,imx53-fec 30 - fsl,imx6sl-fec 31 - const: fsl,imx25-fec 32 - items: 33 - enum: 34 - fsl,imx35-fec 35 - fsl,imx51-fec 36 - const: fsl,imx27-fec 37 - items: 38 - enum: 39 - fsl,imx6ul-fec 40 - fsl,imx6sx-fec 41 - const: fsl,imx6q-fec 42 - items: 43 - enum: 44 - fsl,imx7d-fec 45 - const: fsl,imx6sx-fec 46 - items: 47 - const: fsl,imx8mq-fec 48 - const: fsl,imx6sx-fec 49 - items: 50 - enum: 51 - fsl,imx8mm-fec 52 - fsl,imx8mn-fec 53 - fsl,imx8mp-fec 54 - fsl,imx93-fec 55 - const: fsl,imx8mq-fec 56 - const: fsl,imx6sx-fec 57 - items: 58 - const: fsl,imx8qm-fec 59 - const: fsl,imx6sx-fec 60 - items: 61 - enum: 62 - fsl,imx8dxl-fec 63 - fsl,imx8qxp-fec 64 - const: fsl,imx8qm-fec 65 - const: fsl,imx6sx-fec 66 - items: 67 - enum: 68 - fsl,imx8ulp-fec 69 - const: fsl,imx6ul-fec 70 - const: fsl,imx6q-fec 71 72 reg: 73 maxItems: 1 74 75 interrupts: 76 minItems: 1 77 maxItems: 4 78 79 interrupt-names: 80 oneOf: 81 - items: 82 - const: int0 83 - items: 84 - const: int0 85 - const: pps 86 - items: 87 - const: int0 88 - const: int1 89 - const: int2 90 - items: 91 - const: int0 92 - const: int1 93 - const: int2 94 - const: pps 95 96 clocks: 97 minItems: 2 98 maxItems: 5 99 description: 100 The "ipg", for MAC ipg_clk_s, ipg_clk_mac_s that are for register accessing. 101 The "ahb", for MAC ipg_clk, ipg_clk_mac that are bus clock. 102 The "ptp"(option), for IEEE1588 timer clock that requires the clock. 103 The "enet_clk_ref"(option), for MAC transmit/receiver reference clock like 104 RGMII TXC clock or RMII reference clock. It depends on board design, 105 the clock is required if RGMII TXC and RMII reference clock source from 106 SOC internal PLL. 107 The "enet_out"(option), output clock for external device, like supply clock 108 for PHY. The clock is required if PHY clock source from SOC. 109 The "enet_2x_txclk"(option), for RGMII sampling clock which fixed at 250Mhz. 110 The clock is required if SoC RGMII enable clock delay. 111 112 clock-names: 113 minItems: 2 114 maxItems: 5 115 items: 116 enum: 117 - ipg 118 - ahb 119 - ptp 120 - enet_clk_ref 121 - enet_out 122 - enet_2x_txclk 123 124 phy-mode: true 125 126 phy-handle: true 127 128 fixed-link: true 129 130 local-mac-address: true 131 132 mac-address: true 133 134 nvmem-cells: true 135 136 nvmem-cell-names: true 137 138 tx-internal-delay-ps: 139 enum: [0, 2000] 140 141 rx-internal-delay-ps: 142 enum: [0, 2000] 143 144 phy-supply: 145 description: 146 Regulator that powers the Ethernet PHY. 147 148 power-domains: 149 maxItems: 1 150 151 fsl,num-tx-queues: 152 $ref: /schemas/types.yaml#/definitions/uint32 153 description: 154 The property is valid for enet-avb IP, which supports hw multi queues. 155 Should specify the tx queue number, otherwise set tx queue number to 1. 156 enum: [1, 2, 3] 157 158 fsl,num-rx-queues: 159 $ref: /schemas/types.yaml#/definitions/uint32 160 description: 161 The property is valid for enet-avb IP, which supports hw multi queues. 162 Should specify the rx queue number, otherwise set rx queue number to 1. 163 enum: [1, 2, 3] 164 165 fsl,magic-packet: 166 $ref: /schemas/types.yaml#/definitions/flag 167 description: 168 If present, indicates that the hardware supports waking up via magic packet. 169 170 fsl,err006687-workaround-present: 171 $ref: /schemas/types.yaml#/definitions/flag 172 description: 173 If present indicates that the system has the hardware workaround for 174 ERR006687 applied and does not need a software workaround. 175 176 fsl,stop-mode: 177 $ref: /schemas/types.yaml#/definitions/phandle-array 178 items: 179 - items: 180 - description: phandle to general purpose register node 181 - description: the gpr register offset for ENET stop request 182 - description: the gpr bit offset for ENET stop request 183 description: 184 Register bits of stop mode control, the format is <&gpr req_gpr req_bit>. 185 186 mdio: 187 $ref: mdio.yaml# 188 unevaluatedProperties: false 189 description: 190 Specifies the mdio bus in the FEC, used as a container for phy nodes. 191 192 # Deprecated optional properties: 193 # To avoid these, create a phy node according to ethernet-phy.yaml in the same 194 # directory, and point the FEC's "phy-handle" property to it. Then use 195 # the phy's reset binding, again described by ethernet-phy.yaml. 196 197 phy-reset-gpios: 198 deprecated: true 199 description: 200 Should specify the gpio for phy reset. 201 202 phy-reset-duration: 203 $ref: /schemas/types.yaml#/definitions/uint32 204 deprecated: true 205 description: 206 Reset duration in milliseconds. Should present only if property 207 "phy-reset-gpios" is available. Missing the property will have the 208 duration be 1 millisecond. Numbers greater than 1000 are invalid 209 and 1 millisecond will be used instead. 210 211 phy-reset-active-high: 212 type: boolean 213 deprecated: true 214 description: 215 If present then the reset sequence using the GPIO specified in the 216 "phy-reset-gpios" property is reversed (H=reset state, L=operation state). 217 218 phy-reset-post-delay: 219 $ref: /schemas/types.yaml#/definitions/uint32 220 deprecated: true 221 description: 222 Post reset delay in milliseconds. If present then a delay of phy-reset-post-delay 223 milliseconds will be observed after the phy-reset-gpios has been toggled. 224 Can be omitted thus no delay is observed. Delay is in range of 1ms to 1000ms. 225 Other delays are invalid. 226 227 iommus: 228 maxItems: 1 229 230required: 231 - compatible 232 - reg 233 - interrupts 234 235# FIXME: We had better set additionalProperties to false to avoid invalid or at 236# least undocumented properties. However, PHY may have a deprecated option to 237# place PHY OF properties in the MAC node, such as Micrel PHY, and we can find 238# these boards which is based on i.MX6QDL. 239unevaluatedProperties: false 240 241examples: 242 - | 243 ethernet@83fec000 { 244 compatible = "fsl,imx51-fec", "fsl,imx27-fec"; 245 reg = <0x83fec000 0x4000>; 246 interrupts = <87>; 247 phy-mode = "mii"; 248 phy-reset-gpios = <&gpio2 14 0>; 249 phy-supply = <®_fec_supply>; 250 }; 251 252 ethernet@83fed000 { 253 compatible = "fsl,imx51-fec", "fsl,imx27-fec"; 254 reg = <0x83fed000 0x4000>; 255 interrupts = <87>; 256 phy-mode = "mii"; 257 phy-reset-gpios = <&gpio2 14 0>; 258 phy-supply = <®_fec_supply>; 259 phy-handle = <ðphy0>; 260 261 mdio { 262 #address-cells = <1>; 263 #size-cells = <0>; 264 265 ethphy0: ethernet-phy@0 { 266 compatible = "ethernet-phy-ieee802.3-c22"; 267 reg = <0>; 268 }; 269 }; 270 }; 271