FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/net/marvell-neta-bm.txt

     * Marvell Armada 380/XP Buffer Manager driver (BM)
     
     Required properties:
     
     - compatible: should be "marvell,armada-380-neta-bm".
     - reg: address and length of the register set for the device.
     - clocks: a pointer to the reference clock for this device.
     - internal-mem: a phandle to BM internal SRAM definition.
     
    Optional properties (port):
    
    - pool<0 : 3>,capacity: size of external buffer pointers' ring maintained
      in DRAM. Can be set for each pool (id 0 : 3) separately. The value has
      to be chosen between 128 and 16352 and it also has to be aligned to 32.
      Otherwise the driver would adjust a given number or choose default if
      not set.
    - pool<0 : 3>,pkt-size: maximum size of a packet accepted by a given buffer
      pointers' pool (id 0 : 3). It will be taken into consideration only when pool
      type is 'short'. For 'long' ones it would be overridden by port's MTU.
      If not set a driver will choose a default value.
    
    In order to see how to hook the BM to a given ethernet port, please
    refer to Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt.
    
    Example:
    
    - main node:
    
    bm: bm@c8000 {
            compatible = "marvell,armada-380-neta-bm";
            reg = <0xc8000 0xac>;
            clocks = <&gateclk 13>;
            internal-mem = <&bm_bppi>;
            pool2,capacity = <4096>;
            pool1,pkt-size = <512>;
    };
    
    - internal SRAM node:
    
    bm_bppi: bm-bppi {
            compatible = "mmio-sram";
            reg = <MBUS_ID(0x0c, 0x04) 0 0x100000>;
            ranges = <0 MBUS_ID(0x0c, 0x04) 0 0x100000>;
            #address-cells = <1>;
            #size-cells = <1>;
            clocks = <&gateclk 13>;
    };

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