1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/cache/starfive,jh8100-starlink-cache.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: StarFive StarLink Cache Controller
8
9 maintainers:
10 - Joshua Yeong <joshua.yeong@starfivetech.com>
11
12 description:
13 StarFive's StarLink Cache Controller manages the L3 cache shared between
14 clusters of CPU cores. The cache driver enables RISC-V non-standard cache
15 management as an alternative to instructions in the RISC-V Zicbom extension.
16
17 allOf:
18 - $ref: /schemas/cache-controller.yaml#
19
20 # We need a select here so we don't match all nodes with 'cache'
21 select:
22 properties:
23 compatible:
24 contains:
25 enum:
26 - starfive,jh8100-starlink-cache
27
28 required:
29 - compatible
30
31 properties:
32 compatible:
33 items:
34 - const: starfive,jh8100-starlink-cache
35 - const: cache
36
37 reg:
38 maxItems: 1
39
40 unevaluatedProperties: false
41
42 required:
43 - compatible
44 - reg
45 - cache-block-size
46 - cache-level
47 - cache-sets
48 - cache-size
49 - cache-unified
50
51 examples:
52 - |
53 soc {
54 #address-cells = <2>;
55 #size-cells = <2>;
56
57 cache-controller@15000000 {
58 compatible = "starfive,jh8100-starlink-cache", "cache";
59 reg = <0x0 0x15000000 0x0 0x278>;
60 cache-block-size = <64>;
61 cache-level = <3>;
62 cache-sets = <8192>;
63 cache-size = <0x400000>;
64 cache-unified;
65 };
66 };
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