1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Loongson-2 Power Manager controller
8
9 maintainers:
10 - Yinbo Zhu <zhuyinbo@loongson.cn>
11
12 properties:
13 compatible:
14 oneOf:
15 - items:
16 - const: loongson,ls2k0500-pmc
17 - const: syscon
18 - items:
19 - enum:
20 - loongson,ls2k1000-pmc
21 - loongson,ls2k2000-pmc
22 - const: loongson,ls2k0500-pmc
23 - const: syscon
24
25 reg:
26 maxItems: 1
27
28 interrupts:
29 maxItems: 1
30
31 loongson,suspend-address:
32 $ref: /schemas/types.yaml#/definitions/uint64
33 description:
34 The "loongson,suspend-address" is a deep sleep state (Suspend To
35 RAM) firmware entry address which was jumped from kernel and it's
36 value was dependent on specific platform firmware code. In
37 addition, the PM need according to it to indicate that current
38 SoC whether support Suspend To RAM.
39
40 syscon-poweroff:
41 $ref: /schemas/power/reset/syscon-poweroff.yaml#
42 type: object
43 description:
44 Node for power off method
45
46 syscon-reboot:
47 $ref: /schemas/power/reset/syscon-reboot.yaml#
48 type: object
49 description:
50 Node for reboot method
51
52 required:
53 - compatible
54 - reg
55 - interrupts
56
57 additionalProperties: false
58
59 examples:
60 - |
61 #include <dt-bindings/interrupt-controller/irq.h>
62
63 power-management@1fe27000 {
64 compatible = "loongson,ls2k1000-pmc", "loongson,ls2k0500-pmc", "syscon";
65 reg = <0x1fe27000 0x58>;
66 interrupt-parent = <&liointc1>;
67 interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
68 loongson,suspend-address = <0x0 0x1c000500>;
69
70 syscon-reboot {
71 compatible = "syscon-reboot";
72 offset = <0x30>;
73 mask = <0x1>;
74 };
75
76 syscon-poweroff {
77 compatible = "syscon-poweroff";
78 regmap = <&pmc>;
79 offset = <0x14>;
80 mask = <0x3c00>;
81 value = <0x3c00>;
82 };
83 };
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