xref: /freebsd/sys/contrib/device-tree/Bindings/net/ftgmac100.txt (revision 77013d11e6483b970af25e13c9b892075742f7e5)
1* Faraday Technology FTGMAC100 gigabit ethernet controller
2
3Required properties:
4- compatible: "faraday,ftgmac100"
5
6  Must also contain one of these if used as part of an Aspeed AST2400
7  or 2500 family SoC as they have some subtle tweaks to the
8  implementation:
9
10     - "aspeed,ast2400-mac"
11     - "aspeed,ast2500-mac"
12     - "aspeed,ast2600-mac"
13
14- reg: Address and length of the register set for the device
15- interrupts: Should contain ethernet controller interrupt
16
17Optional properties:
18- phy-handle: See ethernet.txt file in the same directory.
19- phy-mode: See ethernet.txt file in the same directory. If the property is
20  absent, "rgmii" is assumed. Supported values are "rgmii*" and "rmii" for
21  aspeed parts. Other (unknown) parts will accept any value.
22- use-ncsi: Use the NC-SI stack instead of an MDIO PHY. Currently assumes
23  rmii (100bT) but kept as a separate property in case NC-SI grows support
24  for a gigabit link.
25- no-hw-checksum: Used to disable HW checksum support. Here for backward
26  compatibility as the driver now should have correct defaults based on
27  the SoC.
28- clocks: In accordance with the generic clock bindings. Must describe the MAC
29  IP clock, and optionally an RMII RCLK gate for the AST2500/AST2600. The
30  required MAC clock must be the first cell.
31- clock-names:
32
33      - "MACCLK": The MAC IP clock
34      - "RCLK": Clock gate for the RMII RCLK
35
36Optional subnodes:
37- mdio: See mdio.txt file in the same directory.
38
39Example:
40
41	mac0: ethernet@1e660000 {
42		compatible = "aspeed,ast2500-mac", "faraday,ftgmac100";
43		reg = <0x1e660000 0x180>;
44		interrupts = <2>;
45		use-ncsi;
46	};
47
48Example with phy-handle:
49
50	mac1: ethernet@1e680000 {
51		compatible = "aspeed,ast2500-mac", "faraday,ftgmac100";
52		reg = <0x1e680000 0x180>;
53		interrupts = <2>;
54
55		phy-handle = <&phy>;
56		phy-mode = "rgmii";
57
58		mdio {
59			#address-cells = <1>;
60			#size-cells = <0>;
61
62			phy: ethernet-phy@1 {
63				compatible = "ethernet-phy-ieee802.3-c22";
64				reg = <1>;
65			};
66		};
67	};
68