1Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP)
2Transceiver
3
4Required properties:
5
6- compatible : must be one of
7  "sff,sfp" for SFP modules
8  "sff,sff" for soldered down SFF modules
9
10- i2c-bus : phandle of an I2C bus controller for the SFP two wire serial
11  interface
12
13Optional Properties:
14
15- mod-def0-gpios : GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS)
16  module presence input gpio signal, active (module absent) high. Must
17  not be present for SFF modules
18
19- los-gpios : GPIO phandle and a specifier of the Receiver Loss of Signal
20  Indication input gpio signal, active (signal lost) high
21
22- tx-fault-gpios : GPIO phandle and a specifier of the Module Transmitter
23  Fault input gpio signal, active (fault condition) high
24
25- tx-disable-gpios : GPIO phandle and a specifier of the Transmitter Disable
26  output gpio signal, active (Tx disable) high
27
28- rate-select0-gpios : GPIO phandle and a specifier of the Rx Signaling Rate
29  Select (AKA RS0) output gpio signal, low: low Rx rate, high: high Rx rate
30  Must not be present for SFF modules
31
32- rate-select1-gpios : GPIO phandle and a specifier of the Tx Signaling Rate
33  Select (AKA RS1) output gpio signal (SFP+ only), low: low Tx rate, high:
34  high Tx rate. Must not be present for SFF modules
35
36- maximum-power-milliwatt : Maximum module power consumption
37  Specifies the maximum power consumption allowable by a module in the
38  slot, in milli-Watts.  Presently, modules can be up to 1W, 1.5W or 2W.
39
40Example #1: Direct serdes to SFP connection
41
42sfp_eth3: sfp-eth3 {
43	compatible = "sff,sfp";
44	i2c-bus = <&sfp_1g_i2c>;
45	los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>;
46	mod-def0-gpios = <&cpm_gpio2 21 GPIO_ACTIVE_LOW>;
47	maximum-power-milliwatt = <1000>;
48	pinctrl-names = "default";
49	pinctrl-0 = <&cpm_sfp_1g_pins &cps_sfp_1g_pins>;
50	tx-disable-gpios = <&cps_gpio1 24 GPIO_ACTIVE_HIGH>;
51	tx-fault-gpios = <&cpm_gpio2 19 GPIO_ACTIVE_HIGH>;
52};
53
54&cps_emac3 {
55	phy-names = "comphy";
56	phys = <&cps_comphy5 0>;
57	sfp = <&sfp_eth3>;
58};
59
60Example #2: Serdes to PHY to SFP connection
61
62sfp_eth0: sfp-eth0 {
63	compatible = "sff,sfp";
64	i2c-bus = <&sfpp0_i2c>;
65	los-gpios = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>;
66	mod-def0-gpios = <&cps_gpio1 27 GPIO_ACTIVE_LOW>;
67	pinctrl-names = "default";
68	pinctrl-0 = <&cps_sfpp0_pins>;
69	tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>;
70	tx-fault-gpios  = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>;
71};
72
73p0_phy: ethernet-phy@0 {
74	compatible = "ethernet-phy-ieee802.3-c45";
75	pinctrl-names = "default";
76	pinctrl-0 = <&cpm_phy0_pins &cps_phy0_pins>;
77	reg = <0>;
78	interrupt = <&cpm_gpio2 18 IRQ_TYPE_EDGE_FALLING>;
79	sfp = <&sfp_eth0>;
80};
81
82&cpm_eth0 {
83	phy = <&p0_phy>;
84	phy-mode = "10gbase-kr";
85};
86