1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/remoteproc/ 4 $id: http://devicetree.org/schemas/remoteproc/fsl,imx-rproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: NXP i.MX Co-Processor 7 title: NXP i.MX Co-Processor
8 8
9 description: 9 description:
10 This binding provides support for ARM Cortex 10 This binding provides support for ARM Cortex M4 Co-processor found on some NXP iMX SoCs.
11 11
12 maintainers: 12 maintainers:
13 - Peng Fan <peng.fan@nxp.com> 13 - Peng Fan <peng.fan@nxp.com>
14 14
15 properties: 15 properties:
16 compatible: 16 compatible:
17 enum: 17 enum:
18 - fsl,imx6sx-cm4 18 - fsl,imx6sx-cm4
19 - fsl,imx7d-cm4 19 - fsl,imx7d-cm4
20 - fsl,imx7ulp-cm4 20 - fsl,imx7ulp-cm4
21 - fsl,imx8mm-cm4 21 - fsl,imx8mm-cm4
22 - fsl,imx8mn-cm7 22 - fsl,imx8mn-cm7
23 - fsl,imx8mn-cm7-mmio 23 - fsl,imx8mn-cm7-mmio
24 - fsl,imx8mp-cm7 24 - fsl,imx8mp-cm7
25 - fsl,imx8mp-cm7-mmio 25 - fsl,imx8mp-cm7-mmio
26 - fsl,imx8mq-cm4 26 - fsl,imx8mq-cm4
27 - fsl,imx8qm-cm4 27 - fsl,imx8qm-cm4
28 - fsl,imx8qxp-cm4 28 - fsl,imx8qxp-cm4
29 - fsl,imx8ulp-cm33 29 - fsl,imx8ulp-cm33
30 - fsl,imx93-cm33 30 - fsl,imx93-cm33
31 31
32 clocks: 32 clocks:
33 maxItems: 1 33 maxItems: 1
34 34
35 syscon: 35 syscon:
36 $ref: /schemas/types.yaml#/definitions/pha 36 $ref: /schemas/types.yaml#/definitions/phandle
37 description: 37 description:
38 Phandle to syscon block which provide ac 38 Phandle to syscon block which provide access to System Reset Controller
39 39
40 mbox-names: 40 mbox-names:
41 items: 41 items:
42 - const: tx 42 - const: tx
43 - const: rx 43 - const: rx
44 - const: rxdb 44 - const: rxdb
45 45
46 mboxes: 46 mboxes:
47 description: 47 description:
48 This property is required only if the rp 48 This property is required only if the rpmsg/virtio functionality is used.
49 List of <&phandle type channel> - 1 chan 49 List of <&phandle type channel> - 1 channel for TX, 1 channel for RX, 1 channel for RXDB.
50 (see mailbox/fsl,mu.yaml) 50 (see mailbox/fsl,mu.yaml)
51 minItems: 1 51 minItems: 1
52 maxItems: 3 52 maxItems: 3
53 53
54 memory-region: 54 memory-region:
55 description: 55 description:
56 If present, a phandle for a reserved mem 56 If present, a phandle for a reserved memory area that used for vdev buffer,
57 resource table, vring region and others 57 resource table, vring region and others used by remote processor.
58 minItems: 1 58 minItems: 1
59 maxItems: 32 59 maxItems: 32
60 60
61 power-domains: 61 power-domains:
62 minItems: 2 <<
63 maxItems: 8 62 maxItems: 8
64 63
65 fsl,auto-boot: 64 fsl,auto-boot:
66 $ref: /schemas/types.yaml#/definitions/fla 65 $ref: /schemas/types.yaml#/definitions/flag
67 description: 66 description:
68 Indicate whether need to load the defaul 67 Indicate whether need to load the default firmware and start the remote
69 processor automatically. 68 processor automatically.
70 69
71 fsl,entry-address: 70 fsl,entry-address:
72 $ref: /schemas/types.yaml#/definitions/uin 71 $ref: /schemas/types.yaml#/definitions/uint32
73 description: 72 description:
74 Specify CPU entry address for SCU enable 73 Specify CPU entry address for SCU enabled processor.
75 74
76 fsl,iomuxc-gpr: 75 fsl,iomuxc-gpr:
77 $ref: /schemas/types.yaml#/definitions/pha 76 $ref: /schemas/types.yaml#/definitions/phandle
78 description: 77 description:
79 Phandle to IOMUXC GPR block which provid 78 Phandle to IOMUXC GPR block which provide access to CM7 CPUWAIT bit.
80 79
81 fsl,resource-id: 80 fsl,resource-id:
82 $ref: /schemas/types.yaml#/definitions/uin 81 $ref: /schemas/types.yaml#/definitions/uint32
83 description: 82 description:
84 This property is to specify the resource 83 This property is to specify the resource id of the remote processor in SoC
85 which supports SCFW 84 which supports SCFW
86 85
87 required: 86 required:
88 - compatible 87 - compatible
89 88
90 allOf: 89 allOf:
91 - if: 90 - if:
92 properties: 91 properties:
93 compatible: 92 compatible:
94 not: 93 not:
95 contains: 94 contains:
96 enum: 95 enum:
97 - fsl,imx8mn-cm7-mmio 96 - fsl,imx8mn-cm7-mmio
98 - fsl,imx8mp-cm7-mmio 97 - fsl,imx8mp-cm7-mmio
99 then: 98 then:
100 properties: 99 properties:
101 fsl,iomuxc-gpr: false 100 fsl,iomuxc-gpr: false
102 <<
103 - if: <<
104 properties: <<
105 compatible: <<
106 contains: <<
107 enum: <<
108 - fsl,imx8qxp-cm4 <<
109 - fsl,imx8qm-cm4 <<
110 then: <<
111 required: <<
112 - power-domains <<
113 else: <<
114 properties: <<
115 power-domains: false <<
116 101
117 additionalProperties: false 102 additionalProperties: false
118 103
119 examples: 104 examples:
120 - | 105 - |
121 #include <dt-bindings/clock/imx7d-clock.h> 106 #include <dt-bindings/clock/imx7d-clock.h>
122 m4_reserved_sysmem1: cm4@80000000 { 107 m4_reserved_sysmem1: cm4@80000000 {
123 reg = <0x80000000 0x80000>; 108 reg = <0x80000000 0x80000>;
124 }; 109 };
125 110
126 m4_reserved_sysmem2: cm4@81000000 { 111 m4_reserved_sysmem2: cm4@81000000 {
127 reg = <0x81000000 0x80000>; 112 reg = <0x81000000 0x80000>;
128 }; 113 };
129 114
130 imx7d-cm4 { 115 imx7d-cm4 {
131 compatible = "fsl,imx7d-cm4"; 116 compatible = "fsl,imx7d-cm4";
132 memory-region = <&m4_reserved_sysmem1>, 117 memory-region = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>;
133 syscon = <&src>; 118 syscon = <&src>;
134 clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>; 119 clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>;
135 }; 120 };
136 121
137 - | 122 - |
138 #include <dt-bindings/clock/imx8mm-clock.h 123 #include <dt-bindings/clock/imx8mm-clock.h>
139 124
140 imx8mm-cm4 { 125 imx8mm-cm4 {
141 compatible = "fsl,imx8mm-cm4"; 126 compatible = "fsl,imx8mm-cm4";
142 clocks = <&clk IMX8MM_CLK_M4_DIV>; 127 clocks = <&clk IMX8MM_CLK_M4_DIV>;
143 mbox-names = "tx", "rx", "rxdb"; 128 mbox-names = "tx", "rx", "rxdb";
144 mboxes = <&mu 0 1 129 mboxes = <&mu 0 1
145 &mu 1 1 130 &mu 1 1
146 &mu 3 1>; 131 &mu 3 1>;
147 memory-region = <&vdev0buffer>, <&vdev0v 132 memory-region = <&vdev0buffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>;
148 syscon = <&src>; 133 syscon = <&src>;
149 }; 134 };
150 ... 135 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.