38 lines
1.1 KiB
YAML
38 lines
1.1 KiB
YAML
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description: |
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NXP Mailbox Unit as Zephyr MBOX.
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This NXP Mailbox driver implements Multi-Channel Inter-Processor Mailbox (MBOX) API
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around NXP Inter-CPU Mailbox peripheral IP block.
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The NXP Inter-CPU Mailbox provides up to thirty-two user defined interrupts.
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This driver uses 4 interrupts for mbox signalling mode per each channel,
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4 interrupts for mxbox data transfer mode per each channel and 24 as 3 bytes
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for data.
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compatible: "nxp,mbox-mailbox"
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include: [base.yaml, mailbox-controller.yaml]
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properties:
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interrupts:
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required: true
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rx-channels:
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type: int
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enum: [1, 2, 3, 4]
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description: |
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Number of receive channels enabled on this instance.
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Setting this value to N, will enable channels 0 to N-1, consecutively.
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It should be set by the receiver core coupled with this Mailbox instance.
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For example, if receiver A wants to Rx on channels 0 to 3, then A must
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set rx-channels of mailbox as follows:
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mbox {
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rx-channels = <4>;
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status = "okay";
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};
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mbox-cells:
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- channel
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