Documentation explaining dts nodes. Signed-off-by: Iyappan Subramanian <isubraman...@apm.com> Signed-off-by: Ravi Patel <rapa...@apm.com> Signed-off-by: Keyur Chudgar <kchud...@apm.com> --- .../devicetree/bindings/net/apm-xgene-enet.txt | 67 ++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/apm-xgene-enet.txt
diff --git a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt new file mode 100644 index 0000000..8b88b74 --- /dev/null +++ b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt @@ -0,0 +1,67 @@ +APM X-Gene SoC Ethernet nodes + +Ethernet nodes are defined to describe on-chip ethernet interfaces in +APM X-Gene SoC. Ethernet subsystem communicates with a central Queue Manager +(QMTM) using messages for transmit, receive and allocating data buffers. +There are multiple ethernet interfaces in APM X-Gene SoC. Each ethernet +interface has its own node. Its corresponding clock nodes are shown below. + +Required properties: +- compatible : Shall be "apm,xgene-enet" +- reg : First memory resource shall be the Ethernet CSR + memory resource for indirect MAC access. + Second memory resource shall be the Ethernet CSR + memory resource. + Third memory resource shall be the Ethernet CSR + memory resource for indirect MII access. +- slave-name : Shall be QMTM slave name. +- interrupts : First interrupt resource shall be the Ethernet global + Error interrupt. + : Second interrupt resource shall be the Ethernet MAC + Error interrupt. + : Third interrupt resource shall be the Ethernet QM + interface interrupt. +- clocks : Reference to the clock entry. +- local-mac-address : Shall be ethernet mac address. +- max-frame-size : Shall be maximum ethernet frame size. +- devid : Shall be ethernet interface number. +- phyid : Shall be ethernet MII phy address. +- phy-mode : Shall be ethernet MII mode. + +Optional properties: +- status : Shall be "ok" if enabled or "disabled" if disabled. + Default is "ok". + +Example: + eth8clk: eth8clk { + compatible = "apm,xgene-device-clock"; + clock-names = "eth8clk"; + status = "ok"; + }; + + menet: ethernet@17020000 { + compatible = "apm,xgene-enet"; + status = "disabled"; + reg = <0x0 0x17020000 0x0 0x30>, + <0x0 0x17020000 0x0 0x10000>, + <0x0 0x17020000 0x0 0x20>; + slave-name = "RGMII"; + interrupts = <0x0 0x38 0x4>, + <0x0 0x39 0x4>, + <0x0 0x3a 0x4>; + clocks = <ð8clk 0>; + local-mac-address = <0x0 0x11 0x3a 0x8a 0x5a 0x78>; + max-frame-size = <0x233a>; + devid = <8>; + phyid = <3>; + phy-mode = "rgmii"; + }; + +/* Board-specific peripheral configurations */ +aliases { + ethernet0 = &menet; +}; + +&menet { + status = "ok"; +}; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/