Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / mips / mscc.txt
1 * Microsemi MIPS CPUs
2
3 Boards with a SoC of the Microsemi MIPS family shall have the following
4 properties:
5
6 Required properties:
7 - compatible: "mscc,ocelot", "mscc,luton", "mscc,serval" or "mscc,jr2"
8
9
10 * Other peripherals:
11
12 o CPU chip regs:
13
14 The SoC has a few registers (DEVCPU_GCB:CHIP_REGS) handling miscellaneous
15 functionalities: chip ID, general purpose register for software use, reset
16 controller, hardware status and configuration, efuses.
17
18 Required properties:
19 - compatible: Should be "mscc,ocelot-chip-regs", "simple-mfd", "syscon"
20 - reg : Should contain registers location and length
21
22 Example:
23         syscon@71070000 {
24                 compatible = "mscc,ocelot-chip-regs", "simple-mfd", "syscon";
25                 reg = <0x71070000 0x1c>;
26         };
27
28
29 o CPU system control:
30
31 The SoC has a few registers (ICPU_CFG:CPU_SYSTEM_CTRL) handling configuration of
32 the CPU: 8 general purpose registers, reset control, CPU en/disabling, CPU
33 endianness, CPU bus control, CPU status.
34
35 Required properties:
36 - compatible: Should be "mscc,ocelot-cpu-syscon", "syscon"
37 - reg : Should contain registers location and length
38
39 Example:
40         syscon@70000000 {
41                 compatible = "mscc,ocelot-cpu-syscon", "syscon";
42                 reg = <0x70000000 0x2c>;
43         };
44
45 o HSIO regs:
46
47 The SoC has a few registers (HSIO) handling miscellaneous functionalities:
48 configuration and status of PLL5, RCOMP, SyncE, SerDes configurations and
49 status, SerDes muxing and a thermal sensor.
50
51 Required properties:
52 - compatible: Should be "mscc,ocelot-hsio", "syscon", "simple-mfd"
53 - reg : Should contain registers location and length
54
55 Example:
56         syscon@10d0000 {
57                 compatible = "mscc,ocelot-hsio", "syscon", "simple-mfd";
58                 reg = <0x10d0000 0x10000>;
59         };