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Linux/Documentation/devicetree/bindings/bus/xlnx,versal-net-cdx.yaml

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Diff markup

Differences between /Documentation/devicetree/bindings/bus/xlnx,versal-net-cdx.yaml (Architecture i386) and /Documentation/devicetree/bindings/bus/xlnx,versal-net-cdx.yaml (Architecture m68k)


  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/bus/xlnx,ve      4 $id: http://devicetree.org/schemas/bus/xlnx,versal-net-cdx.yaml#
  5 $schema: http://devicetree.org/meta-schemas/co      5 $schema: http://devicetree.org/meta-schemas/core.yaml#
  6                                                     6 
  7 title: AMD CDX bus controller                       7 title: AMD CDX bus controller
  8                                                     8 
  9 description: |                                      9 description: |
 10   CDX bus controller for AMD devices is implem     10   CDX bus controller for AMD devices is implemented to dynamically
 11   detect CDX bus and devices using the firmwar     11   detect CDX bus and devices using the firmware.
 12   The CDX bus manages multiple FPGA based hard     12   The CDX bus manages multiple FPGA based hardware devices, which
 13   can support network, crypto or any other spe     13   can support network, crypto or any other specialized type of
 14   devices. These FPGA based devices can be add     14   devices. These FPGA based devices can be added/modified dynamically
 15   on run-time.                                     15   on run-time.
 16                                                    16 
 17   All devices on the CDX bus will have a uniqu     17   All devices on the CDX bus will have a unique streamid (for IOMMU)
 18   and a unique device ID (for MSI) correspondi     18   and a unique device ID (for MSI) corresponding to a requestor ID
 19   (one to one associated with the device). The     19   (one to one associated with the device). The streamid and deviceid
 20   are used to configure SMMU and GIC-ITS respe     20   are used to configure SMMU and GIC-ITS respectively.
 21                                                    21 
 22   iommu-map property is used to define the set     22   iommu-map property is used to define the set of stream ids
 23   corresponding to each device and the associa     23   corresponding to each device and the associated IOMMU.
 24                                                    24 
 25   The MSI writes are accompanied by sideband d     25   The MSI writes are accompanied by sideband data (Device ID).
 26   The msi-map property is used to associate th     26   The msi-map property is used to associate the devices with the
 27   device ID as well as the associated ITS cont     27   device ID as well as the associated ITS controller.
 28                                                    28 
 29   rproc property (xlnx,rproc) is used to ident     29   rproc property (xlnx,rproc) is used to identify the remote processor
 30   with which APU (Application Processor Unit)      30   with which APU (Application Processor Unit) interacts to find out
 31   the bus and device configuration.                31   the bus and device configuration.
 32                                                    32 
 33 maintainers:                                       33 maintainers:
 34   - Nipun Gupta <nipun.gupta@amd.com>               34   - Nipun Gupta <nipun.gupta@amd.com>
 35   - Nikhil Agarwal <nikhil.agarwal@amd.com>         35   - Nikhil Agarwal <nikhil.agarwal@amd.com>
 36                                                    36 
 37 properties:                                        37 properties:
 38   compatible:                                      38   compatible:
 39     const: xlnx,versal-net-cdx                     39     const: xlnx,versal-net-cdx
 40                                                    40 
 41   iommu-map: true                                  41   iommu-map: true
 42                                                    42 
 43   msi-map: true                                    43   msi-map: true
 44                                                    44 
 45   xlnx,rproc:                                      45   xlnx,rproc:
 46     $ref: /schemas/types.yaml#/definitions/pha     46     $ref: /schemas/types.yaml#/definitions/phandle
 47     description:                                   47     description:
 48       phandle to the remoteproc_r5 rproc node      48       phandle to the remoteproc_r5 rproc node using which APU interacts
 49       with remote processor.                       49       with remote processor.
 50                                                    50 
 51   ranges: true                                     51   ranges: true
 52                                                    52 
 53   "#address-cells":                                53   "#address-cells":
 54     enum: [1, 2]                                   54     enum: [1, 2]
 55                                                    55 
 56   "#size-cells":                                   56   "#size-cells":
 57     enum: [1, 2]                                   57     enum: [1, 2]
 58                                                    58 
 59 required:                                          59 required:
 60   - compatible                                     60   - compatible
 61   - iommu-map                                      61   - iommu-map
 62   - msi-map                                        62   - msi-map
 63   - xlnx,rproc                                     63   - xlnx,rproc
 64   - ranges                                         64   - ranges
 65   - "#address-cells"                               65   - "#address-cells"
 66   - "#size-cells"                                  66   - "#size-cells"
 67                                                    67 
 68 additionalProperties: false                        68 additionalProperties: false
 69                                                    69 
 70 examples:                                          70 examples:
 71   - |                                              71   - |
 72     cdx {                                          72     cdx {
 73         compatible = "xlnx,versal-net-cdx";        73         compatible = "xlnx,versal-net-cdx";
 74         #address-cells = <1>;                      74         #address-cells = <1>;
 75         #size-cells = <1>;                         75         #size-cells = <1>;
 76         /* define map for RIDs 250-259 */          76         /* define map for RIDs 250-259 */
 77         iommu-map = <250 &smmu 250 10>;            77         iommu-map = <250 &smmu 250 10>;
 78         /* define msi map for RIDs 250-259 */      78         /* define msi map for RIDs 250-259 */
 79         msi-map = <250 &its 250 10>;               79         msi-map = <250 &its 250 10>;
 80         xlnx,rproc = <&remoteproc_r5>;             80         xlnx,rproc = <&remoteproc_r5>;
 81         ranges;                                    81         ranges;
 82     };                                             82     };
                                                      

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