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85 lines
2.6 KiB
85 lines
2.6 KiB
Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP) |
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Transceiver |
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Required properties: |
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- compatible : must be one of |
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"sff,sfp" for SFP modules |
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"sff,sff" for soldered down SFF modules |
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- i2c-bus : phandle of an I2C bus controller for the SFP two wire serial |
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interface |
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Optional Properties: |
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- mod-def0-gpios : GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS) |
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module presence input gpio signal, active (module absent) high. Must |
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not be present for SFF modules |
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- los-gpios : GPIO phandle and a specifier of the Receiver Loss of Signal |
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Indication input gpio signal, active (signal lost) high |
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- tx-fault-gpios : GPIO phandle and a specifier of the Module Transmitter |
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Fault input gpio signal, active (fault condition) high |
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- tx-disable-gpios : GPIO phandle and a specifier of the Transmitter Disable |
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output gpio signal, active (Tx disable) high |
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- rate-select0-gpios : GPIO phandle and a specifier of the Rx Signaling Rate |
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Select (AKA RS0) output gpio signal, low: low Rx rate, high: high Rx rate |
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Must not be present for SFF modules |
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- rate-select1-gpios : GPIO phandle and a specifier of the Tx Signaling Rate |
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Select (AKA RS1) output gpio signal (SFP+ only), low: low Tx rate, high: |
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high Tx rate. Must not be present for SFF modules |
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- maximum-power-milliwatt : Maximum module power consumption |
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Specifies the maximum power consumption allowable by a module in the |
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slot, in milli-Watts. Presently, modules can be up to 1W, 1.5W or 2W. |
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Example #1: Direct serdes to SFP connection |
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sfp_eth3: sfp-eth3 { |
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compatible = "sff,sfp"; |
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i2c-bus = <&sfp_1g_i2c>; |
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los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>; |
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mod-def0-gpios = <&cpm_gpio2 21 GPIO_ACTIVE_LOW>; |
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maximum-power-milliwatt = <1000>; |
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pinctrl-names = "default"; |
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pinctrl-0 = <&cpm_sfp_1g_pins &cps_sfp_1g_pins>; |
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tx-disable-gpios = <&cps_gpio1 24 GPIO_ACTIVE_HIGH>; |
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tx-fault-gpios = <&cpm_gpio2 19 GPIO_ACTIVE_HIGH>; |
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}; |
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&cps_emac3 { |
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phy-names = "comphy"; |
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phys = <&cps_comphy5 0>; |
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sfp = <&sfp_eth3>; |
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}; |
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Example #2: Serdes to PHY to SFP connection |
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sfp_eth0: sfp-eth0 { |
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compatible = "sff,sfp"; |
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i2c-bus = <&sfpp0_i2c>; |
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los-gpios = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>; |
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mod-def0-gpios = <&cps_gpio1 27 GPIO_ACTIVE_LOW>; |
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pinctrl-names = "default"; |
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pinctrl-0 = <&cps_sfpp0_pins>; |
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tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>; |
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tx-fault-gpios = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>; |
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}; |
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p0_phy: ethernet-phy@0 { |
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compatible = "ethernet-phy-ieee802.3-c45"; |
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pinctrl-names = "default"; |
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pinctrl-0 = <&cpm_phy0_pins &cps_phy0_pins>; |
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reg = <0>; |
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interrupt = <&cpm_gpio2 18 IRQ_TYPE_EDGE_FALLING>; |
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sfp = <&sfp_eth0>; |
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}; |
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&cpm_eth0 { |
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phy = <&p0_phy>; |
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phy-mode = "10gbase-kr"; |
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};
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