1 # SPDX-License-Identifier: (GPL-2.0-only OR BS
2 # Copyright (C) 2020 Texas Instruments Incorpo
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/soc/ti/k3-r
6 $schema: http://devicetree.org/meta-schemas/co
7
8 title: Texas Instruments K3 NavigatorSS Ring A
9
10 maintainers:
11 - Santosh Shilimkar <ssantosh@kernel.org>
12 - Grygorii Strashko <grygorii.strashko@ti.com
13
14 description: |
15 The Ring Accelerator (RA) is a machine which
16 from/to a constant address into correspondin
17 circular data structure in memory. The RA el
18 controller which needs to access ring elemen
19 state of the ring (base address, current off
20 performs a read or write access to a specifi
21 source interface on the RA) and the RA repla
22 with a new address which corresponds to the
23 (head for reads, tail for writes).
24
25 The Ring Accelerator is a hardware module th
26 management of the packet queues. The K3 SoCs
27
28 allOf:
29 - $ref: /schemas/arm/keystone/ti,k3-sci-comm
30
31 properties:
32 compatible:
33 items:
34 - const: ti,am654-navss-ringacc
35
36 reg:
37 minItems: 4
38 items:
39 - description: real time registers regio
40 - description: fifos registers regions
41 - description: proxy gcfg registers regi
42 - description: proxy target registers re
43 - description: configuration registers r
44
45 reg-names:
46 minItems: 4
47 items:
48 - const: rt
49 - const: fifos
50 - const: proxy_gcfg
51 - const: proxy_target
52 - const: cfg
53
54 msi-parent: true
55
56 ti,num-rings:
57 $ref: /schemas/types.yaml#/definitions/uin
58 description: Number of rings supported by
59
60 ti,sci-rm-range-gp-rings:
61 $ref: /schemas/types.yaml#/definitions/uin
62 description: TI-SCI RM subtype for GP ring
63
64 required:
65 - compatible
66 - reg
67 - reg-names
68 - msi-parent
69 - ti,num-rings
70 - ti,sci-rm-range-gp-rings
71 - ti,sci
72 - ti,sci-dev-id
73
74 unevaluatedProperties: false
75
76 examples:
77 - |
78 bus {
79 #address-cells = <2>;
80 #size-cells = <2>;
81
82 ringacc: ringacc@3c000000 {
83 compatible = "ti,am654-navss-ringa
84 reg = <0x0 0x3c000000 0x0 0x400000
85 <0x0 0x38000000 0x0 0x400000
86 <0x0 0x31120000 0x0 0x100>,
87 <0x0 0x33000000 0x0 0x40000>
88 <0x0 0x31080000 0x0 0x40000>
89 reg-names = "rt", "fifos", "
90 ti,num-rings = <818>;
91 ti,sci-rm-range-gp-rings = <0x2>;
92 ti,sci = <&dmsc>;
93 ti,sci-dev-id = <187>;
94 msi-parent = <&inta_main_udmass>;
95 };
96 };
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