xref: /linux/Documentation/devicetree/bindings/crypto/img,hash-accelerator.yaml (revision e7e86d7697c6ed1dbbde18d7185c35b6967945ed) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/img,hash-accelerator.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Imagination Technologies hardware hash accelerator
8
9maintainers:
10  - James Hartley <james.hartley@imgtec.com>
11
12description:
13  The hash accelerator provides hardware hashing acceleration for
14  SHA1, SHA224, SHA256 and MD5 hashes.
15
16properties:
17  compatible:
18    const: img,hash-accelerator
19
20  reg:
21    items:
22      - description: Register base address and size
23      - description: DMA port specifier
24
25  interrupts:
26    maxItems: 1
27
28  dmas:
29    maxItems: 1
30
31  dma-names:
32    items:
33      - const: tx
34
35  clocks:
36    items:
37      - description: System clock for hash block registers
38      - description: Hash clock for data path
39
40  clock-names:
41    items:
42      - const: sys
43      - const: hash
44
45additionalProperties: false
46
47required:
48  - compatible
49  - reg
50  - interrupts
51  - dmas
52  - dma-names
53  - clocks
54  - clock-names
55
56examples:
57  - |
58    #include <dt-bindings/interrupt-controller/mips-gic.h>
59    #include <dt-bindings/clock/pistachio-clk.h>
60
61    hash@18149600 {
62        compatible = "img,hash-accelerator";
63        reg = <0x18149600 0x100>, <0x18101100 0x4>;
64        interrupts = <GIC_SHARED 59 IRQ_TYPE_LEVEL_HIGH>;
65        dmas = <&dma 8 0xffffffff 0>;
66        dma-names = "tx";
67        clocks = <&cr_periph SYS_CLK_HASH>, <&clk_periph PERIPH_CLK_ROM>;
68        clock-names = "sys", "hash";
69    };
70