Commit 5b32c61a authored by Pranavi Somisetty's avatar Pranavi Somisetty Committed by David S. Miller
Browse files

dt-bindings: net: cdns,macb: Add rx-watermark property 



watermark value is the minimum amount of packet data
required to activate the forwarding process. The watermark
implementation and maximum size is dependent on the device
where Cadence MACB/GEM is used.

Signed-off-by: default avatarPranavi Somisetty <pranavi.somisetty@amd.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 473f5e13

Documentation/devicetree/bindings/net/cdns,macb.yaml

+11 −0
Original line number Diff line number Diff line
@@ -109,6 +109,16 @@ properties: 
  power-domains:

    maxItems: 1



  cdns,rx-watermark:

    $ref: /schemas/types.yaml#/definitions/uint32

    description:

      When the receive partial store and forward mode is activated,

      the receiver will only begin to forward the packet to the external

      AHB or AXI slave when enough packet data is stored in the SRAM packet buffer.

      rx-watermark corresponds to the number of SRAM buffer locations,

      that need to be filled, before the forwarding process is activated.

      Width of the SRAM is platform dependent, and can be 4, 8 or 16 bytes.



  '#address-cells':

    const: 1
@@ -166,6 +176,7 @@ examples: 
            compatible = "cdns,macb";

            reg = <0xfffc4000 0x4000>;

            interrupts = <21>;

            cdns,rx-watermark = <0x44>;

            phy-mode = "rmii";

            local-mac-address = [3a 0e 03 04 05 06];

            clock-names = "pclk", "hclk", "tx_clk";