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98 lines
2.4 KiB
98 lines
2.4 KiB
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: "http://devicetree.org/schemas/remoteproc/fsl,imx-rproc.yaml#" |
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$schema: "http://devicetree.org/meta-schemas/core.yaml#" |
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title: NXP i.MX Co-Processor Bindings |
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description: |
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This binding provides support for ARM Cortex M4 Co-processor found on some NXP iMX SoCs. |
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maintainers: |
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- Peng Fan <[email protected]> |
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properties: |
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compatible: |
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enum: |
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- fsl,imx8mq-cm4 |
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- fsl,imx8mm-cm4 |
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- fsl,imx8mn-cm7 |
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- fsl,imx8mp-cm7 |
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- fsl,imx8ulp-cm33 |
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- fsl,imx7d-cm4 |
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- fsl,imx7ulp-cm4 |
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- fsl,imx6sx-cm4 |
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clocks: |
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maxItems: 1 |
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syscon: |
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$ref: /schemas/types.yaml#/definitions/phandle |
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description: |
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Phandle to syscon block which provide access to System Reset Controller |
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mbox-names: |
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items: |
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- const: tx |
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- const: rx |
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- const: rxdb |
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mboxes: |
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description: |
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This property is required only if the rpmsg/virtio functionality is used. |
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List of <&phandle type channel> - 1 channel for TX, 1 channel for RX, 1 channel for RXDB. |
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(see mailbox/fsl,mu.yaml) |
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minItems: 1 |
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maxItems: 3 |
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memory-region: |
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description: |
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If present, a phandle for a reserved memory area that used for vdev buffer, |
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resource table, vring region and others used by remote processor. |
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minItems: 1 |
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maxItems: 32 |
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fsl,auto-boot: |
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$ref: /schemas/types.yaml#/definitions/flag |
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description: |
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Indicate whether need to load the default firmware and start the remote |
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processor automatically. |
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required: |
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- compatible |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/clock/imx7d-clock.h> |
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m4_reserved_sysmem1: cm4@80000000 { |
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reg = <0x80000000 0x80000>; |
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}; |
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m4_reserved_sysmem2: cm4@81000000 { |
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reg = <0x81000000 0x80000>; |
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}; |
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imx7d-cm4 { |
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compatible = "fsl,imx7d-cm4"; |
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memory-region = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>; |
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syscon = <&src>; |
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clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>; |
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}; |
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- | |
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#include <dt-bindings/clock/imx8mm-clock.h> |
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imx8mm-cm4 { |
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compatible = "fsl,imx8mm-cm4"; |
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clocks = <&clk IMX8MM_CLK_M4_DIV>; |
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mbox-names = "tx", "rx", "rxdb"; |
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mboxes = <&mu 0 1 |
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&mu 1 1 |
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&mu 3 1>; |
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memory-region = <&vdev0buffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>; |
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syscon = <&src>; |
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}; |
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...
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