xref: /freebsd/sys/contrib/device-tree/Bindings/net/marvell-armada-370-neta.txt (revision a90b9d0159070121c221b966469c3e36d912bf82)
1* Marvell Armada 370 / Armada XP / Armada 3700 Ethernet Controller (NETA)
2
3Required properties:
4- compatible: could be one of the following:
5	"marvell,armada-370-neta"
6	"marvell,armada-xp-neta"
7	"marvell,armada-3700-neta"
8	"marvell,armada-ac5-neta"
9- reg: address and length of the register set for the device.
10- interrupts: interrupt for the device
11- phy: See ethernet.txt file in the same directory.
12- phy-mode: See ethernet.txt file in the same directory
13- clocks: List of clocks for this device. At least one clock is
14  mandatory for the core clock. If several clocks are given, then the
15  clock-names property must be used to identify them.
16
17Optional properties:
18- tx-csum-limit: maximum mtu supported by port that allow TX checksum.
19  Value is presented in bytes. If not used, by default 1600B is set for
20  "marvell,armada-370-neta" and 9800B for others.
21- clock-names: List of names corresponding to clocks property; shall be
22  "core" for core clock and "bus" for the optional bus clock.
23- phys: comphy for the ethernet port, see ../phy/phy-bindings.txt
24
25Optional properties (valid only for Armada XP/38x):
26
27- buffer-manager: a phandle to a buffer manager node. Please refer to
28  Documentation/devicetree/bindings/net/marvell-neta-bm.txt
29- bm,pool-long: ID of a pool, that will accept all packets of a size
30  higher than 'short' pool's threshold (if set) and up to MTU value.
31  Obligatory, when the port is supposed to use hardware
32  buffer management.
33- bm,pool-short: ID of a pool, that will be used for accepting
34  packets of a size lower than given threshold. If not set, the port
35  will use a single 'long' pool for all packets, as defined above.
36
37Example:
38
39ethernet@70000 {
40	compatible = "marvell,armada-370-neta";
41	reg = <0x70000 0x2500>;
42	interrupts = <8>;
43	clocks = <&gate_clk 4>;
44	tx-csum-limit = <9800>
45	phy = <&phy0>;
46	phy-mode = "rgmii-id";
47	buffer-manager = <&bm>;
48	bm,pool-long = <0>;
49	bm,pool-short = <1>;
50};
51