144 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/net/sff,sfp.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP)8 Transceiver9 10maintainers:11 - Russell King <linux@armlinux.org.uk>12 13properties:14 compatible:15 enum:16 - sff,sfp # for SFP modules17 - sff,sff # for soldered down SFF modules18 19 i2c-bus:20 $ref: /schemas/types.yaml#/definitions/phandle21 description:22 phandle of an I2C bus controller for the SFP two wire serial23 24 maximum-power-milliwatt:25 minimum: 100026 default: 100027 description:28 Maximum module power consumption Specifies the maximum power consumption29 allowable by a module in the slot, in milli-Watts. Presently, modules can30 be up to 1W, 1.5W or 2W.31 32 mod-def0-gpios:33 maxItems: 134 description:35 GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS) module36 presence input gpio signal, active (module absent) high. Must not be37 present for SFF modules38 39 los-gpios:40 maxItems: 141 description:42 GPIO phandle and a specifier of the Receiver Loss of Signal Indication43 input gpio signal, active (signal lost) high44 45 tx-fault-gpios:46 maxItems: 147 description:48 GPIO phandle and a specifier of the Module Transmitter Fault input gpio49 signal, active (fault condition) high50 51 tx-disable-gpios:52 maxItems: 153 description:54 GPIO phandle and a specifier of the Transmitter Disable output gpio55 signal, active (Tx disable) high56 57 rate-select0-gpios:58 maxItems: 159 description:60 GPIO phandle and a specifier of the Rx Signaling Rate Select (AKA RS0)61 output gpio signal, low - low Rx rate, high - high Rx rate Must not be62 present for SFF modules63 64 rate-select1-gpios:65 maxItems: 166 description:67 GPIO phandle and a specifier of the Tx Signaling Rate Select (AKA RS1)68 output gpio signal (SFP+ only), low - low Tx rate, high - high Tx rate. Must69 not be present for SFF modules70 71allOf:72 - if:73 properties:74 compatible:75 contains:76 const: sff,sff77 then:78 properties:79 mod-def0-gpios: false80 rate-select0-gpios: false81 rate-select1-gpios: false82 83required:84 - compatible85 - i2c-bus86 87additionalProperties: false88 89examples:90 - | # Direct serdes to SFP connection91 #include <dt-bindings/gpio/gpio.h>92 93 sfp1: sfp {94 compatible = "sff,sfp";95 i2c-bus = <&sfp_1g_i2c>;96 los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>;97 mod-def0-gpios = <&cpm_gpio2 21 GPIO_ACTIVE_LOW>;98 maximum-power-milliwatt = <1000>;99 pinctrl-names = "default";100 pinctrl-0 = <&cpm_sfp_1g_pins &cps_sfp_1g_pins>;101 tx-disable-gpios = <&cps_gpio1 24 GPIO_ACTIVE_HIGH>;102 tx-fault-gpios = <&cpm_gpio2 19 GPIO_ACTIVE_HIGH>;103 };104 105 ethernet {106 phy-names = "comphy";107 phys = <&cps_comphy5 0>;108 sfp = <&sfp1>;109 };110 111 - | # Serdes to PHY to SFP connection112 #include <dt-bindings/gpio/gpio.h>113 #include <dt-bindings/interrupt-controller/arm-gic.h>114 115 sfp2: sfp {116 compatible = "sff,sfp";117 i2c-bus = <&sfp_i2c>;118 los-gpios = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>;119 mod-def0-gpios = <&cps_gpio1 27 GPIO_ACTIVE_LOW>;120 pinctrl-names = "default";121 pinctrl-0 = <&cps_sfpp0_pins>;122 tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>;123 tx-fault-gpios = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>;124 };125 126 mdio {127 #address-cells = <1>;128 #size-cells = <0>;129 130 phy: ethernet-phy@0 {131 compatible = "ethernet-phy-ieee802.3-c45";132 pinctrl-names = "default";133 pinctrl-0 = <&cpm_phy0_pins &cps_phy0_pins>;134 reg = <0>;135 interrupt = <&cpm_gpio2 18 IRQ_TYPE_EDGE_FALLING>;136 sfp = <&sfp2>;137 };138 };139 140 ethernet {141 phy = <&phy>;142 phy-mode = "10gbase-kr";143 };144