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1* Marvell Armada 380/XP Buffer Manager driver (BM)2 3Required properties:4 5- compatible: should be "marvell,armada-380-neta-bm".6- reg: address and length of the register set for the device.7- clocks: a pointer to the reference clock for this device.8- internal-mem: a phandle to BM internal SRAM definition.9 10Optional properties (port):11 12- pool<0 : 3>,capacity: size of external buffer pointers' ring maintained13 in DRAM. Can be set for each pool (id 0 : 3) separately. The value has14 to be chosen between 128 and 16352 and it also has to be aligned to 32.15 Otherwise the driver would adjust a given number or choose default if16 not set.17- pool<0 : 3>,pkt-size: maximum size of a packet accepted by a given buffer18 pointers' pool (id 0 : 3). It will be taken into consideration only when pool19 type is 'short'. For 'long' ones it would be overridden by port's MTU.20 If not set a driver will choose a default value.21 22In order to see how to hook the BM to a given ethernet port, please23refer to Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt.24 25Example:26 27- main node:28 29bm: bm@c8000 {30 compatible = "marvell,armada-380-neta-bm";31 reg = <0xc8000 0xac>;32 clocks = <&gateclk 13>;33 internal-mem = <&bm_bppi>;34 pool2,capacity = <4096>;35 pool1,pkt-size = <512>;36};37 38- internal SRAM node:39 40bm_bppi: bm-bppi {41 compatible = "mmio-sram";42 reg = <MBUS_ID(0x0c, 0x04) 0 0x100000>;43 ranges = <0 MBUS_ID(0x0c, 0x04) 0 0x100000>;44 #address-cells = <1>;45 #size-cells = <1>;46 clocks = <&gateclk 13>;47};48