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 Bindings
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 <<
24 - fsl,imx8mp-cm7 23 - fsl,imx8mp-cm7
25 - fsl,imx8mp-cm7-mmio <<
26 - fsl,imx8mq-cm4 24 - fsl,imx8mq-cm4
27 - fsl,imx8qm-cm4 <<
28 - fsl,imx8qxp-cm4 <<
29 - fsl,imx8ulp-cm33 25 - fsl,imx8ulp-cm33
30 - fsl,imx93-cm33 26 - fsl,imx93-cm33
31 27
32 clocks: 28 clocks:
33 maxItems: 1 29 maxItems: 1
34 30
35 syscon: 31 syscon:
36 $ref: /schemas/types.yaml#/definitions/pha 32 $ref: /schemas/types.yaml#/definitions/phandle
37 description: 33 description:
38 Phandle to syscon block which provide ac 34 Phandle to syscon block which provide access to System Reset Controller
39 35
40 mbox-names: 36 mbox-names:
41 items: 37 items:
42 - const: tx 38 - const: tx
43 - const: rx 39 - const: rx
44 - const: rxdb 40 - const: rxdb
45 41
46 mboxes: 42 mboxes:
47 description: 43 description:
48 This property is required only if the rp 44 This property is required only if the rpmsg/virtio functionality is used.
49 List of <&phandle type channel> - 1 chan 45 List of <&phandle type channel> - 1 channel for TX, 1 channel for RX, 1 channel for RXDB.
50 (see mailbox/fsl,mu.yaml) 46 (see mailbox/fsl,mu.yaml)
51 minItems: 1 47 minItems: 1
52 maxItems: 3 48 maxItems: 3
53 49
54 memory-region: 50 memory-region:
55 description: 51 description:
56 If present, a phandle for a reserved mem 52 If present, a phandle for a reserved memory area that used for vdev buffer,
57 resource table, vring region and others 53 resource table, vring region and others used by remote processor.
58 minItems: 1 54 minItems: 1
59 maxItems: 32 55 maxItems: 32
60 56
61 power-domains: <<
62 minItems: 2 <<
63 maxItems: 8 <<
64 <<
65 fsl,auto-boot: 57 fsl,auto-boot:
66 $ref: /schemas/types.yaml#/definitions/fla 58 $ref: /schemas/types.yaml#/definitions/flag
67 description: 59 description:
68 Indicate whether need to load the defaul 60 Indicate whether need to load the default firmware and start the remote
69 processor automatically. 61 processor automatically.
70 62
71 fsl,entry-address: <<
72 $ref: /schemas/types.yaml#/definitions/uin <<
73 description: <<
74 Specify CPU entry address for SCU enable <<
75 <<
76 fsl,iomuxc-gpr: <<
77 $ref: /schemas/types.yaml#/definitions/pha <<
78 description: <<
79 Phandle to IOMUXC GPR block which provid <<
80 <<
81 fsl,resource-id: <<
82 $ref: /schemas/types.yaml#/definitions/uin <<
83 description: <<
84 This property is to specify the resource <<
85 which supports SCFW <<
86 <<
87 required: 63 required:
88 - compatible 64 - compatible
89 65
90 allOf: <<
91 - if: <<
92 properties: <<
93 compatible: <<
94 not: <<
95 contains: <<
96 enum: <<
97 - fsl,imx8mn-cm7-mmio <<
98 - fsl,imx8mp-cm7-mmio <<
99 then: <<
100 properties: <<
101 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 <<
117 additionalProperties: false 66 additionalProperties: false
118 67
119 examples: 68 examples:
120 - | 69 - |
121 #include <dt-bindings/clock/imx7d-clock.h> 70 #include <dt-bindings/clock/imx7d-clock.h>
122 m4_reserved_sysmem1: cm4@80000000 { 71 m4_reserved_sysmem1: cm4@80000000 {
123 reg = <0x80000000 0x80000>; 72 reg = <0x80000000 0x80000>;
124 }; 73 };
125 74
126 m4_reserved_sysmem2: cm4@81000000 { 75 m4_reserved_sysmem2: cm4@81000000 {
127 reg = <0x81000000 0x80000>; 76 reg = <0x81000000 0x80000>;
128 }; 77 };
129 78
130 imx7d-cm4 { 79 imx7d-cm4 {
131 compatible = "fsl,imx7d-cm4"; !! 80 compatible = "fsl,imx7d-cm4";
132 memory-region = <&m4_reserved_sysmem1>, !! 81 memory-region = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>;
133 syscon = <&src>; !! 82 syscon = <&src>;
134 clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>; !! 83 clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>;
135 }; 84 };
136 85
137 - | 86 - |
138 #include <dt-bindings/clock/imx8mm-clock.h 87 #include <dt-bindings/clock/imx8mm-clock.h>
139 88
140 imx8mm-cm4 { 89 imx8mm-cm4 {
141 compatible = "fsl,imx8mm-cm4"; 90 compatible = "fsl,imx8mm-cm4";
142 clocks = <&clk IMX8MM_CLK_M4_DIV>; 91 clocks = <&clk IMX8MM_CLK_M4_DIV>;
143 mbox-names = "tx", "rx", "rxdb"; 92 mbox-names = "tx", "rx", "rxdb";
144 mboxes = <&mu 0 1 93 mboxes = <&mu 0 1
145 &mu 1 1 94 &mu 1 1
146 &mu 3 1>; 95 &mu 3 1>;
147 memory-region = <&vdev0buffer>, <&vdev0v 96 memory-region = <&vdev0buffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>;
148 syscon = <&src>; 97 syscon = <&src>;
149 }; 98 };
150 ... 99 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.