[PATCH v2 2/3] dt-binding: net: sfp binding documentation
From: Baruch Siach <hidden>
Date: 2017-08-30 09:51:11
Also in:
netdev
Subsystem:
networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2017-09-01 · Re: [PATCH v2 2/3] dt-binding: net: sfp binding documentation · Rob Herring <hidden>
- 2017-08-30 · Re: [PATCH v2 2/3] dt-binding: net: sfp binding documentation · Andrew Lunn <andrew@lunn.ch>
- 2017-08-30 · Re: [PATCH v2 2/3] dt-binding: net: sfp binding documentation · Sergei Shtylyov <hidden>
- 2017-08-30 · Re: [PATCH v2 2/3] dt-binding: net: sfp binding documentation · Baruch Siach <hidden>
- 2017-08-30 · Re: [PATCH v2 2/3] dt-binding: net: sfp binding documentation · Sergei Shtylyov <hidden>
Add device-tree binding documentation SFP transceivers. Support for SFP transceivers has been recently introduced (drivers/net/phy/sfp.c). Signed-off-by: Baruch Siach <redacted> --- v2: Rename -gpio properties to -gpios Rename the rate-select-gpio property to rate-select0-gpios Add the rate-select1-gpios property Add examples --- Documentation/devicetree/bindings/net/sff,sfp.txt | 74 +++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/sff,sfp.txt
diff --git a/Documentation/devicetree/bindings/net/sff,sfp.txt b/Documentation/devicetree/bindings/net/sff,sfp.txt
new file mode 100644
index 000000000000..1d9c786d6287
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/sff,sfp.txt@@ -0,0 +1,74 @@ +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 + +- moddef0-gpios : phandle of the MOD-DEF0 (AKA Mod_ABS) module presence input + gpio signal + +- los-gpios : phandle of the Receiver Loss of Signal Indication input gpio + signal + +- tx-fault-gpios : phandle of the Module Transmitter Fault input gpio signal + +- tx-disable-gpios : phandle of the Transmitter Disable output gpio signal + +- rate-select0-gpios : phandle of the Rx Signaling Rate Select (AKA RS0) output + gpio + +- rate-select1-gpios : phandle of the Tx Signaling Rate Select (AKA RS1) output + gpio (SFP+ only) + +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>; + moddef0-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-mode = "sgmii"; + phy-names = "comphy"; + phys = <&cps_comphy 5 COMPHY_SGMII2>; + sfp = <&sfp_eth3>; +}; + +Example #2: Serdes to PHY to SFP connection + +sfp_eth0: sfp-eth0 { + compatible = "sff,sfp+"; + i2c-bus = <&sfpp0_i2c>; + los-gpio = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>; + moddef0-gpio = <&cps_gpio1 27 GPIO_ACTIVE_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&cps_sfpp0_pins>; + tx-disable-gpio = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>; + tx-fault-gpio = <&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"; +};
--
2.14.1
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