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
7 title: TI K3 DSP devices
8
9 maintainers:
10 - Suman Anna <s-anna@ti.com>
11
12 description: |
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
28 properties:
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
89 allOf:
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
141 required:
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
153 unevaluatedProperties: false
154
155 examples:
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 };
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