tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1MVEBU comphy drivers
2--------------------
3
4COMPHY controllers can be found on the following Marvell MVEBU SoCs:
5* Armada 7k/8k (on the CP110)
6* Armada 3700
7It provides a number of shared PHYs used by various interfaces (network, SATA,
8USB, PCIe...).
9
10Required properties:
11
12- compatible: should be one of:
13 * "marvell,comphy-cp110" for Armada 7k/8k
14 * "marvell,comphy-a3700" for Armada 3700
15- reg: should contain the COMPHY register(s) location(s) and length(s).
16 * 1 entry for Armada 7k/8k
17 * 4 entries for Armada 3700 along with the corresponding reg-names
18 properties, memory areas are:
19 * Generic COMPHY registers
20 * Lane 1 (PCIe/GbE)
21 * Lane 0 (USB3/GbE)
22 * Lane 2 (SATA/USB3)
23- marvell,system-controller: should contain a phandle to the system
24 controller node (only for Armada 7k/8k)
25- #address-cells: should be 1.
26- #size-cells: should be 0.
27
28A sub-node is required for each comphy lane provided by the comphy.
29
30Required properties (child nodes):
31
32- reg: COMPHY lane number.
33- #phy-cells : from the generic PHY bindings, must be 1. Defines the
34 input port to use for a given comphy lane.
35
36Examples:
37
38 cpm_comphy: phy@120000 {
39 compatible = "marvell,comphy-cp110";
40 reg = <0x120000 0x6000>;
41 marvell,system-controller = <&cpm_syscon0>;
42 #address-cells = <1>;
43 #size-cells = <0>;
44
45 cpm_comphy0: phy@0 {
46 reg = <0>;
47 #phy-cells = <1>;
48 };
49
50 cpm_comphy1: phy@1 {
51 reg = <1>;
52 #phy-cells = <1>;
53 };
54 };
55
56 comphy: phy@18300 {
57 compatible = "marvell,comphy-a3700";
58 reg = <0x18300 0x300>,
59 <0x1F000 0x400>,
60 <0x5C000 0x400>,
61 <0xe0178 0x8>;
62 reg-names = "comphy",
63 "lane1_pcie_gbe",
64 "lane0_usb3_gbe",
65 "lane2_sata_usb3";
66 #address-cells = <1>;
67 #size-cells = <0>;
68
69
70 comphy0: phy@0 {
71 reg = <0>;
72 #phy-cells = <1>;
73 };
74
75 comphy1: phy@1 {
76 reg = <1>;
77 #phy-cells = <1>;
78 };
79
80 comphy2: phy@2 {
81 reg = <2>;
82 #phy-cells = <1>;
83 };
84 };