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Diffstat (limited to 'Documentation/devicetree/bindings/net/amd-xgbe.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/net/amd-xgbe.txt | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/amd-xgbe.txt b/Documentation/devicetree/bindings/net/amd-xgbe.txt new file mode 100644 index 000000000..26efd526d --- /dev/null +++ b/Documentation/devicetree/bindings/net/amd-xgbe.txt @@ -0,0 +1,47 @@ +* AMD 10GbE driver (amd-xgbe) + +Required properties: +- compatible: Should be "amd,xgbe-seattle-v1a" +- reg: Address and length of the register sets for the device + - MAC registers + - PCS registers +- interrupt-parent: Should be the phandle for the interrupt controller + that services interrupts for this device +- interrupts: Should contain the amd-xgbe interrupt(s). The first interrupt + listed is required and is the general device interrupt. If the optional + amd,per-channel-interrupt property is specified, then one additional + interrupt for each DMA channel supported by the device should be specified +- clocks: + - DMA clock for the amd-xgbe device (used for calculating the + correct Rx interrupt watchdog timer value on a DMA channel + for coalescing) + - PTP clock for the amd-xgbe device +- clock-names: Should be the names of the clocks + - "dma_clk" for the DMA clock + - "ptp_clk" for the PTP clock +- phy-handle: See ethernet.txt file in the same directory +- phy-mode: See ethernet.txt file in the same directory + +Optional properties: +- mac-address: mac address to be assigned to the device. Can be overridden + by UEFI. +- dma-coherent: Present if dma operations are coherent +- amd,per-channel-interrupt: Indicates that Rx and Tx complete will generate + a unique interrupt for each DMA channel - this requires an additional + interrupt be configured for each DMA channel + +Example: + xgbe@e0700000 { + compatible = "amd,xgbe-seattle-v1a"; + reg = <0 0xe0700000 0 0x80000>, + <0 0xe0780000 0 0x80000>; + interrupt-parent = <&gic>; + interrupts = <0 325 4>, + <0 326 1>, <0 327 1>, <0 328 1>, <0 329 1>; + amd,per-channel-interrupt; + clocks = <&xgbe_dma_clk>, <&xgbe_ptp_clk>; + clock-names = "dma_clk", "ptp_clk"; + phy-handle = <&phy>; + phy-mode = "xgmii"; + mac-address = [ 02 a1 a2 a3 a4 a5 ]; + }; |