| Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP) |
| Transceiver |
| |
| Required properties: |
| |
| - compatible : must be "sff,sfp" |
| |
| Optional Properties: |
| |
| - i2c-bus : phandle of an I2C bus controller for the SFP two wire serial |
| interface |
| |
| - mod-def0-gpios : GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS) |
| module presence input gpio signal, active (module absent) high |
| |
| - los-gpios : GPIO phandle and a specifier of the Receiver Loss of Signal |
| Indication input gpio signal, active (signal lost) high |
| |
| - tx-fault-gpios : GPIO phandle and a specifier of the Module Transmitter |
| Fault input gpio signal, active (fault condition) high |
| |
| - tx-disable-gpios : GPIO phandle and a specifier of the Transmitter Disable |
| output gpio signal, active (Tx disable) high |
| |
| - rate-select0-gpios : GPIO phandle and a specifier of the Rx Signaling Rate |
| Select (AKA RS0) output gpio signal, low: low Rx rate, high: high Rx rate |
| |
| - rate-select1-gpios : 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 |
| |
| Example #1: Direct serdes to SFP connection |
| |
| sfp_eth3: sfp-eth3 { |
| 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>; |
| 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>; |
| }; |
| |
| &cps_emac3 { |
| phy-names = "comphy"; |
| phys = <&cps_comphy5 0>; |
| sfp = <&sfp_eth3>; |
| }; |
| |
| Example #2: Serdes to PHY to SFP connection |
| |
| sfp_eth0: sfp-eth0 { |
| compatible = "sff,sfp"; |
| i2c-bus = <&sfpp0_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>; |
| }; |
| |
| p0_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 = <&sfp_eth0>; |
| }; |
| |
| &cpm_eth0 { |
| phy = <&p0_phy>; |
| phy-mode = "10gbase-kr"; |
| }; |
