diff options
Diffstat (limited to '')
| -rw-r--r-- | Documentation/devicetree/bindings/net/sff,sfp.yaml | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/sff,sfp.yaml b/Documentation/devicetree/bindings/net/sff,sfp.yaml new file mode 100644 index 000000000..06c66ab81 --- /dev/null +++ b/Documentation/devicetree/bindings/net/sff,sfp.yaml @@ -0,0 +1,142 @@ +# 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: + maxItems: 1 + 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>; + interrupt = <&cpm_gpio2 18 IRQ_TYPE_EDGE_FALLING>; + sfp = <&sfp2>; + }; + }; + + ethernet { + phy = <&phy>; + phy-mode = "10gbase-kr"; + }; |