ext4: verify extent header depth
[cascardo/linux.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,phy-sata3"
9 - address-cells: should be 1
10 - size-cells: should be 0
11 - reg: register ranges for the PHY PCB interface
12 - reg-names: should be "phy" and "phy-ctrl"
13      The "phy-ctrl" registers are only required for
14      "brcm,iproc-ns2-sata-phy".
15
16 Sub-nodes:
17   Each port's PHY should be represented as a sub-node.
18
19 Sub-nodes required properties:
20 - reg: the PHY number
21 - phy-cells: generic PHY binding; must be 0
22
23 Sub-nodes optional properties:
24 - brcm,enable-ssc: use spread spectrum clocking (SSC) on this port
25      This property is not applicable for "brcm,iproc-ns2-sata-phy".
26
27 Example:
28         sata-phy@f0458100 {
29                 compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3";
30                 reg = <0xf0458100 0x1e00>, <0xf045804c 0x10>;
31                 reg-names = "phy";
32                 #address-cells = <1>;
33                 #size-cells = <0>;
34
35                 sata-phy@0 {
36                         reg = <0>;
37                         #phy-cells = <0>;
38                 };
39
40                 sata-phy@1 {
41                         reg = <1>;
42                         #phy-cells = <0>;
43                 };
44         };