xref: /linux/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml (revision a1ff5a7d78a036d6c2178ee5acd6ba4946243800) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/remoteproc/ti,k3-dsp-rproc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: TI K3 DSP devices
8
9maintainers:
10  - Suman Anna <s-anna@ti.com>
11
12description: |
13  The TI K3 family of SoCs usually have one or more TI DSP Core sub-systems
14  that are used to offload some of the processor-intensive tasks or algorithms,
15  for achieving various system level goals.
16
17  These processor sub-systems usually contain additional sub-modules like
18  L1 and/or L2 caches/SRAMs, an Interrupt Controller, an external memory
19  controller, a dedicated local power/sleep controller etc. The DSP processor
20  cores in the K3 SoCs are usually either a TMS320C66x CorePac processor or a
21  TMS320C71x CorePac processor.
22
23  Each DSP Core sub-system is represented as a single DT node. Each node has a
24  number of required or optional properties that enable the OS running on the
25  host processor (Arm CorePac) to perform the device management of the remote
26  processor and to communicate with the remote processor.
27
28properties:
29  compatible:
30    enum:
31      - ti,am62a-c7xv-dsp
32      - ti,j721e-c66-dsp
33      - ti,j721e-c71-dsp
34      - ti,j721s2-c71-dsp
35    description:
36      Use "ti,am62a-c7xv-dsp" for AM62A Deep learning DSPs on K3 AM62A SoCs
37      Use "ti,j721e-c66-dsp" for C66x DSPs on K3 J721E SoCs
38      Use "ti,j721e-c71-dsp" for C71x DSPs on K3 J721E SoCs
39      Use "ti,j721s2-c71-dsp" for C71x DSPs on K3 J721S2 SoCs
40
41  resets:
42    description: |
43      Should contain the phandle to the reset controller node managing the
44      local resets for this device, and a reset specifier.
45    maxItems: 1
46
47  firmware-name:
48    description: |
49      Should contain the name of the default firmware image
50      file located on the firmware search path
51
52  mboxes:
53    description: |
54      OMAP Mailbox specifier denoting the sub-mailbox, to be used for
55      communication with the remote processor. This property should match
56      with the sub-mailbox node used in the firmware image.
57    maxItems: 1
58
59  memory-region:
60    minItems: 2
61    maxItems: 8
62    description: |
63      phandle to the reserved memory nodes to be associated with the remoteproc
64      device. There should be at least two reserved memory nodes defined. The
65      reserved memory nodes should be carveout nodes, and should be defined as
66      per the bindings in
67      Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
68    items:
69      - description: region used for dynamic DMA allocations like vrings and
70                     vring buffers
71      - description: region reserved for firmware image sections
72    additionalItems: true
73
74# Optional properties:
75# --------------------
76
77  sram:
78    $ref: /schemas/types.yaml#/definitions/phandle-array
79    minItems: 1
80    maxItems: 4
81    items:
82      maxItems: 1
83    description: |
84      phandles to one or more reserved on-chip SRAM regions. The regions
85      should be defined as child nodes of the respective SRAM node, and
86      should be defined as per the generic bindings in,
87      Documentation/devicetree/bindings/sram/sram.yaml
88
89allOf:
90  - if:
91      properties:
92        compatible:
93          enum:
94            - ti,j721e-c66-dsp
95    then:
96      properties:
97        reg:
98          items:
99            - description: Address and Size of the L2 SRAM internal memory region
100            - description: Address and Size of the L1 PRAM internal memory region
101            - description: Address and Size of the L1 DRAM internal memory region
102        reg-names:
103          items:
104            - const: l2sram
105            - const: l1pram
106            - const: l1dram
107
108  - if:
109      properties:
110        compatible:
111          enum:
112            - ti,j721e-c71-dsp
113            - ti,j721s2-c71-dsp
114    then:
115      properties:
116        reg:
117          items:
118            - description: Address and Size of the L2 SRAM internal memory region
119            - description: Address and Size of the L1 DRAM internal memory region
120        reg-names:
121          items:
122            - const: l2sram
123            - const: l1dram
124
125  - if:
126      properties:
127        compatible:
128          enum:
129            - ti,am62a-c7xv-dsp
130    then:
131      properties:
132        reg:
133          items:
134            - description: Address and Size of the L2 SRAM internal memory region
135        reg-names:
136          items:
137            - const: l2sram
138
139  - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
140
141required:
142  - compatible
143  - reg
144  - reg-names
145  - ti,sci
146  - ti,sci-dev-id
147  - ti,sci-proc-ids
148  - resets
149  - firmware-name
150  - mboxes
151  - memory-region
152
153unevaluatedProperties: false
154
155examples:
156  - |
157    soc {
158        #address-cells = <2>;
159        #size-cells = <2>;
160
161        mailbox0_cluster3: mailbox-0 {
162            #mbox-cells = <1>;
163        };
164
165        mailbox0_cluster4: mailbox-1 {
166            #mbox-cells = <1>;
167        };
168
169        bus@100000 {
170            compatible = "simple-bus";
171            #address-cells = <2>;
172            #size-cells = <2>;
173            ranges = <0x00 0x00100000 0x00 0x00100000 0x00 0x00020000>, /* ctrl mmr */
174                     <0x00 0x64800000 0x00 0x64800000 0x00 0x00800000>, /* C71_0 */
175                     <0x4d 0x80800000 0x4d 0x80800000 0x00 0x00800000>, /* C66_0 */
176                     <0x4d 0x81800000 0x4d 0x81800000 0x00 0x00800000>; /* C66_1 */
177
178            /* J721E C66_0 DSP node */
179            dsp@4d80800000 {
180                compatible = "ti,j721e-c66-dsp";
181                reg = <0x4d 0x80800000 0x00 0x00048000>,
182                      <0x4d 0x80e00000 0x00 0x00008000>,
183                      <0x4d 0x80f00000 0x00 0x00008000>;
184                reg-names = "l2sram", "l1pram", "l1dram";
185                ti,sci = <&dmsc>;
186                ti,sci-dev-id = <142>;
187                ti,sci-proc-ids = <0x03 0xFF>;
188                resets = <&k3_reset 142 1>;
189                firmware-name = "j7-c66_0-fw";
190                memory-region = <&c66_0_dma_memory_region>,
191                                <&c66_0_memory_region>;
192                mboxes = <&mailbox0_cluster3 &mbox_c66_0>;
193            };
194
195            /* J721E C71_0 DSP node */
196            c71_0: dsp@64800000 {
197                compatible = "ti,j721e-c71-dsp";
198                reg = <0x00 0x64800000 0x00 0x00080000>,
199                      <0x00 0x64e00000 0x00 0x0000c000>;
200                reg-names = "l2sram", "l1dram";
201                ti,sci = <&dmsc>;
202                ti,sci-dev-id = <15>;
203                ti,sci-proc-ids = <0x30 0xFF>;
204                resets = <&k3_reset 15 1>;
205                firmware-name = "j7-c71_0-fw";
206                memory-region = <&c71_0_dma_memory_region>,
207                                <&c71_0_memory_region>;
208                mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
209            };
210        };
211    };
212