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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/remoteproc/imx-rproc.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: NXP iMX6SX/iMX7D Co-Processor Bindings
description:
This binding provides support for ARM Cortex M4 Co-processor found on
some NXP iMX SoCs.
maintainers:
- Oleksij Rempel <o.rempel@pengutronix.de>
- Peng Fan <peng.fan@nxp.com>
properties:
compatible:
enum:
- "fsl,imx7d-cm4"
- "fsl,imx6sx-cm4"
- "fsl,imx7ulp-cm4"
- "fsl,imx8mm-cm4"
- "fsl,imx8qm-cm4"
- "fsl,imx8qxp-cm4"
early-booted: true
clocks:
items:
Clock for co-processor (See: ../clock/clock-bindings.txt)
syscon:
description:
Phandle to syscon block which provide access to System Reset Controller
allOf:
- $ref: "/schemas/types.yaml#/definitions/phandle"
mboxes:
description:
This property is required only if the rpmsg/virtio functionality is used.
List of <&phandle type channel> - 1 channel for TX, 1 channel for RX,
1 channel for RXDB.
(see mailbox/fsl,mu.txt)
maxItems: 3
mbox-names:
items:
- const: tx
- const: rx
- const: rxdb
maxItems: 3
memory-region:
description:
List of phandles to the reserved memory regions.
(see ../reserved-memory/reserved-memory.txt)
mub-partition:
description:
The remote Co-processor hardware partition which is only valid for
i.MX SoCs with hardware partition feature.
$ref: /schemas/types.yaml#/definitions/uint32
rsrc-table:
description:
Resource table array is required only if the rpmsg/virtio
functionality is used.
allOf:
- $ref: /schemas/types.yaml#/definitions/uint32-array
rsrc-da:
description:
Resource table address is required only if the rpmsg/virtio
functionality is used, rsrc-table has high priority.
allOf:
- $ref: /schemas/types.yaml#/definitions/uint32
required:
- compatible
- clocks
- syscon
examples:
- |
#include <dt-bindings/clock/imx7d-clock.h>
m4_reserved_sysmem1: cm4@80000000 {
reg = <0x80000000 0x80000>;
};
m4_reserved_sysmem2: cm4@81000000 {
reg = <0x81000000 0x80000>;
};
imx7d-cm4 {
compatible = "fsl,imx7d-cm4";
memory-region = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>;
syscon = <&src>;
clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>;
};
imx8x-cm4 {
compatible = "fsl,imx8qxp-cm4";
rsrc-table = <
0x1 0x2 0x0 0x0 0x18 0x5c
3
/*fw_rsc_vdev*/
7 0 1 0 0 0x200
/*fw_rsc_vdev_vring*/
0x90000000 4096 256 1 0
0x90008000 4096 256 2 0
3
/*fw_rsc_vdev*/
7 1 1 0 0 0x200
/*fw_rsc_vdev_vring*/
0x90010000 4096 256 1 0
0x90018000 4096 256 2 0
>;
early-booted;
mbox-names = "tx", "rx", "rxdb";
mboxes = <&lsio_mu5 0 1
&lsio_mu5 1 1
&lsio_mu5 3 1>;
mub-partition = <3>;
memory-region = <&vdev0vring0>, <&vdev0vring1>, <&vdev0buffer>,
<&vdev1vring0>, <&vdev1vring1>, <&vdev0buffer>;
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
vdev0vring0: vdev0vring0@90000000 {
compatible = "shared-dma-pool";
reg = <0 0x90000000 0 0x8000>;
no-map;
};
vdev0vring1: vdev0vring1@90008000 {
compatible = "shared-dma-pool";
reg = <0 0x90008000 0 0x8000>;
no-map;
};
vdev1vring0: vdev1vring0@90010000 {
compatible = "shared-dma-pool";
reg = <0 0x90010000 0 0x8000>;
no-map;
};
vdev1vring1: vdev1vring1@90018000 {
compatible = "shared-dma-pool";
reg = <0 0x90018000 0 0x8000>;
no-map;
};
vdev0buffer: vdev0buffer {
compatible = "shared-dma-pool";
reg = <0 0x90400000 0 0x100000>;
no-map;
};
};
...
|
