1 Marvell Orion/Discovery ethernet controller
2 =============================================
3
4 The Marvell Discovery ethernet controller can
5 (Kirkwood, Dove, Orion5x, and Discovery Innova
6 Discovery system controller chips (mv64[345]60
7
8 The Discovery ethernet controller is described
9 first level describes the ethernet controller
10 describes up to 3 ethernet port nodes within t
11 the multiple levels is that the port registers
12 set of controller registers. Each port node de
13
14 Note: The above separation is only true for Di
15 For Orion SoCs we stick to the separation, alt
16 only one port associated. Multiple ports are i
17 controllers. As Kirkwood has some issues with
18 an extra compatible string is added for it.
19
20 * Ethernet controller node
21
22 Required controller properties:
23 - #address-cells: shall be 1.
24 - #size-cells: shall be 0.
25 - compatible: shall be one of "marvell,orion-
26 - reg: address and length of the controller r
27
28 Optional controller properties:
29 - clocks: phandle reference to the controller
30 - marvell,tx-checksum-limit: max tx packet si
31
32 * Ethernet port node
33
34 Required port properties:
35 - compatible: shall be one of "marvell,orion-
36 "marvell,kirkwood-eth-port".
37 - reg: port number relative to ethernet contr
38 - interrupts: port interrupt.
39 - local-mac-address: See ethernet.txt file in
40
41 Optional port properties:
42 - marvell,tx-queue-size: size of the transmit
43 - marvell,tx-sram-addr: address of transmit d
44 - marvell,tx-sram-size: size of transmit desc
45 - marvell,rx-queue-size: size of the receive
46 - marvell,rx-sram-addr: address of receive de
47 - marvell,rx-sram-size: size of receive descr
48
49 and
50
51 - phy-handle: See ethernet.txt file in the sa
52 - phy-mode: See ethernet.txt file in the same
53
54 or
55
56 - speed: port speed if no PHY connected.
57 - duplex: port mode if no PHY connected.
58
59 * Node example:
60
61 mdio-bus {
62 ...
63 ethphy: ethernet-phy@8 {
64 ...
65 };
66 };
67
68 eth: ethernet-controller@72000 {
69 compatible = "marvell,orion-eth";
70 #address-cells = <1>;
71 #size-cells = <0>;
72 reg = <0x72000 0x2000>;
73 clocks = <&gate_clk 2>;
74 marvell,tx-checksum-limit = <1600>;
75
76 ethernet@0 {
77 compatible = "marvell,orion-et
78 reg = <0>;
79 interrupts = <29>;
80 phy-handle = <ðphy>;
81 local-mac-address = [00 00 00
82 };
83 };
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