fsl,imx-rproc.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: "http://devicetree.org/schemas/remoteproc/fsl,imx-rproc.yaml#"
    5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    6 
    7 title: NXP i.MX Co-Processor Bindings
    8 
    9 description:
   10   This binding provides support for ARM Cortex M4 Co-processor found on some NXP iMX SoCs.
   11 
   12 maintainers:
   13   - Peng Fan <peng.fan@nxp.com>
   14 
   15 properties:
   16   compatible:
   17     enum:
   18       - fsl,imx6sx-cm4
   19       - fsl,imx7d-cm4
   20       - fsl,imx7ulp-cm4
   21       - fsl,imx8mm-cm4
   22       - fsl,imx8mn-cm7
   23       - fsl,imx8mp-cm7
   24       - fsl,imx8mq-cm4
   25       - fsl,imx8ulp-cm33
   26       - fsl,imx93-cm33
   27 
   28   clocks:
   29     maxItems: 1
   30 
   31   syscon:
   32     $ref: /schemas/types.yaml#/definitions/phandle
   33     description:
   34       Phandle to syscon block which provide access to System Reset Controller
   35 
   36   mbox-names:
   37     items:
   38       - const: tx
   39       - const: rx
   40       - const: rxdb
   41 
   42   mboxes:
   43     description:
   44       This property is required only if the rpmsg/virtio functionality is used.
   45       List of <&phandle type channel> - 1 channel for TX, 1 channel for RX, 1 channel for RXDB.
   46       (see mailbox/fsl,mu.yaml)
   47     minItems: 1
   48     maxItems: 3
   49 
   50   memory-region:
   51     description:
   52       If present, a phandle for a reserved memory area that used for vdev buffer,
   53       resource table, vring region and others used by remote processor.
   54     minItems: 1
   55     maxItems: 32
   56 
   57   fsl,auto-boot:
   58     $ref: /schemas/types.yaml#/definitions/flag
   59     description:
   60       Indicate whether need to load the default firmware and start the remote
   61       processor automatically.
   62 
   63 required:
   64   - compatible
   65 
   66 additionalProperties: false
   67 
   68 examples:
   69   - |
   70     #include <dt-bindings/clock/imx7d-clock.h>
   71     m4_reserved_sysmem1: cm4@80000000 {
   72       reg = <0x80000000 0x80000>;
   73     };
   74 
   75     m4_reserved_sysmem2: cm4@81000000 {
   76       reg = <0x81000000 0x80000>;
   77     };
   78 
   79     imx7d-cm4 {
   80       compatible        = "fsl,imx7d-cm4";
   81       memory-region     = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>;
   82       syscon            = <&src>;
   83       clocks            = <&clks IMX7D_ARM_M4_ROOT_CLK>;
   84     };
   85 
   86   - |
   87     #include <dt-bindings/clock/imx8mm-clock.h>
   88 
   89     imx8mm-cm4 {
   90       compatible = "fsl,imx8mm-cm4";
   91       clocks = <&clk IMX8MM_CLK_M4_DIV>;
   92       mbox-names = "tx", "rx", "rxdb";
   93       mboxes = <&mu 0 1
   94                 &mu 1 1
   95                 &mu 3 1>;
   96       memory-region = <&vdev0buffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>;
   97       syscon = <&src>;
   98     };
   99 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/remoteproc/fsl,imx-rproc.yaml

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sys/contrib/device-tree/Bindings/remoteproc/fsl,imx-rproc.yaml