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Diffstat (limited to 'Documentation/devicetree/bindings/remoteproc/imx-rproc.yaml')
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diff --git a/Documentation/devicetree/bindings/remoteproc/imx-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/imx-rproc.yaml new file mode 100644 index 000000000000..b0cfb48e60cf --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/imx-rproc.yaml @@ -0,0 +1,165 @@ +# 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; + }; +}; + +... |