1 PPC4xx Clock Power Management (CPM) node
2
3 Required properties:
4 - compatible : compatible l
5 - dcr-access-method : "native"
6 - dcr-reg : < DCR regist
7
8 Optional properties:
9 - er-offset : All 4xx SoCs
10 one of two d
11 registers. S
12 in the follo
13 others have
14 (SR,ER,FR).
15 er-offset =
16 - unused-units : specifier co
17 bit in the c
18 in CPM will
19 devices.
20 - idle-doze : specifier co
21 bit in the c
22 in CPM will
23 devices. Thi
24 - standby : specifier co
25 bit in the c
26 in CPM will
27 restored on
28 - suspend : specifier co
29 bit in the c
30 in CPM will
31 restored on
32 and suspend
33 be different
34 standby only
35 However, the
36 If they are
37 power saving
38 is available
39 refresh mode
40 saving techn
41
42 Example:
43 CPM0: cpm {
44 compatible = "ibm,cpm";
45 dcr-access-method = "native";
46 dcr-reg = <0x160 0x003>;
47 er-offset = <0>;
48 unused-units = <0x00000100>;
49 idle-doze = <0x02000000>;
50 standby = <0xfeff0000>;
51 suspend = <0xfeff791d>;
52 };
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