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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/sff,sfp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP)
Transceiver
maintainers:
- Russell King <linux@armlinux.org.uk>
properties:
compatible:
enum:
- sff,sfp # for SFP modules
- sff,sff # for soldered down SFF modules
i2c-bus:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle of an I2C bus controller for the SFP two wire serial
maximum-power-milliwatt:
minimum: 1000
default: 1000
description:
Maximum module power consumption Specifies the maximum power consumption
allowable by a module in the slot, in milli-Watts. Presently, modules can
be up to 1W, 1.5W or 2W.
mod-def0-gpios:
maxItems: 1
description:
GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS) module
presence input gpio signal, active (module absent) high. Must not be
present for SFF modules
los-gpios:
maxItems: 1
description:
GPIO phandle and a specifier of the Receiver Loss of Signal Indication
input gpio signal, active (signal lost) high
tx-fault-gpios:
maxItems: 1
description:
GPIO phandle and a specifier of the Module Transmitter Fault input gpio
signal, active (fault condition) high
tx-disable-gpios:
maxItems: 1
description:
GPIO phandle and a specifier of the Transmitter Disable output gpio
signal, active (Tx disable) high
rate-select0-gpios:
maxItems: 1
description:
GPIO phandle and a specifier of the Rx Signaling Rate Select (AKA RS0)
output gpio signal, low - low Rx rate, high - high Rx rate Must not be
present for SFF modules
rate-select1-gpios:
maxItems: 1
description:
GPIO phandle and a specifier of the Tx Signaling Rate Select (AKA RS1)
output gpio signal (SFP+ only), low - low Tx rate, high - high Tx rate. Must
not be present for SFF modules
allOf:
- if:
properties:
compatible:
contains:
const: sff,sff
then:
properties:
mod-def0-gpios: false
rate-select0-gpios: false
rate-select1-gpios: false
required:
- compatible
- i2c-bus
additionalProperties: false
examples:
- | # Direct serdes to SFP connection
#include <dt-bindings/gpio/gpio.h>
sfp1: sfp {
compatible = "sff,sfp";
i2c-bus = <&sfp_1g_i2c>;
los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>;
mod-def0-gpios = <&cpm_gpio2 21 GPIO_ACTIVE_LOW>;
maximum-power-milliwatt = <1000>;
pinctrl-names = "default";
pinctrl-0 = <&cpm_sfp_1g_pins &cps_sfp_1g_pins>;
tx-disable-gpios = <&cps_gpio1 24 GPIO_ACTIVE_HIGH>;
tx-fault-gpios = <&cpm_gpio2 19 GPIO_ACTIVE_HIGH>;
};
ethernet {
phy-names = "comphy";
phys = <&cps_comphy5 0>;
sfp = <&sfp1>;
};
- | # Serdes to PHY to SFP connection
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
sfp2: sfp {
compatible = "sff,sfp";
i2c-bus = <&sfp_i2c>;
los-gpios = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>;
mod-def0-gpios = <&cps_gpio1 27 GPIO_ACTIVE_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&cps_sfpp0_pins>;
tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>;
tx-fault-gpios = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>;
};
mdio {
#address-cells = <1>;
#size-cells = <0>;
phy: ethernet-phy@0 {
compatible = "ethernet-phy-ieee802.3-c45";
pinctrl-names = "default";
pinctrl-0 = <&cpm_phy0_pins &cps_phy0_pins>;
reg = <0>;
interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
sfp = <&sfp2>;
};
};
ethernet {
phy = <&phy>;
phy-mode = "10gbase-kr";
};
|
