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Linux kernel mirror (for testing)
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1* Broadcom SATA3 PHY
2
3Required 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
18Sub-nodes:
19 Each port's PHY should be represented as a sub-node.
20
21Sub-nodes required properties:
22- reg: the PHY number
23- phy-cells: generic PHY binding; must be 0
24
25Sub-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- brcm,rxaeq-mode: string that indicates the desired RX equalizer
31 mode, possible values are:
32 "off" (equivalent to not specifying the property)
33 "auto"
34 "manual" (brcm,rxaeq-value is used in that case)
35
36- brcm,rxaeq-value: when 'rxaeq-mode' is set to "manual", provides the RX
37 equalizer value that should be used. Allowed range is 0..63.
38
39Example
40 sata-phy@f0458100 {
41 compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3";
42 reg = <0xf0458100 0x1e00>, <0xf045804c 0x10>;
43 reg-names = "phy";
44 #address-cells = <1>;
45 #size-cells = <0>;
46
47 sata-phy@0 {
48 reg = <0>;
49 #phy-cells = <0>;
50 };
51
52 sata-phy@1 {
53 reg = <1>;
54 #phy-cells = <0>;
55 };
56 };