GNU Linux-libre 4.14.266-gnu1
[releases.git] / Documentation / devicetree / bindings / phy / brcm-sata-phy.txt
1 * Broadcom SATA3 PHY
2
3 Required properties:
4 - compatible: should be one or more of
5      "brcm,bcm7425-sata-phy"
6      "brcm,bcm7445-sata-phy"
7      "brcm,iproc-ns2-sata-phy"
8      "brcm,iproc-nsp-sata-phy"
9      "brcm,phy-sata3"
10      "brcm,iproc-sr-sata-phy"
11 - address-cells: should be 1
12 - size-cells: should be 0
13 - reg: register ranges for the PHY PCB interface
14 - reg-names: should be "phy" and "phy-ctrl"
15      The "phy-ctrl" registers are only required for
16      "brcm,iproc-ns2-sata-phy" and "brcm,iproc-sr-sata-phy".
17
18 Sub-nodes:
19   Each port's PHY should be represented as a sub-node.
20
21 Sub-nodes required properties:
22 - reg: the PHY number
23 - phy-cells: generic PHY binding; must be 0
24
25 Sub-nodes optional properties:
26 - brcm,enable-ssc: use spread spectrum clocking (SSC) on this port
27      This property is not applicable for "brcm,iproc-ns2-sata-phy",
28      "brcm,iproc-nsp-sata-phy" and "brcm,iproc-sr-sata-phy".
29
30 Example:
31         sata-phy@f0458100 {
32                 compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3";
33                 reg = <0xf0458100 0x1e00>, <0xf045804c 0x10>;
34                 reg-names = "phy";
35                 #address-cells = <1>;
36                 #size-cells = <0>;
37
38                 sata-phy@0 {
39                         reg = <0>;
40                         #phy-cells = <0>;
41                 };
42
43                 sata-phy@1 {
44                         reg = <1>;
45                         #phy-cells = <0>;
46                 };
47         };