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i.MX SHMEM-NET implementations
A network device to communicate with another domain.
Communication is done through shared memory
and synchronized by Mailbox Units of imx.
Use Mailbox Units side A to communicate with side B.
Required properties:
- compatible : "fsl,imx-shmem-net".
- rxfirst: The flag that indicates the position of the RX buffer,
one of the two partitions must set it.
- mub-partition: The id number of the remote processors,
used on i.mx8qm for partition reset. The default
value is 3 in driver without this property.
- mbox-names: the mailbox channel names.
- mboxes: the mailboxes list containing:
MU name, channel type (0 for TX, 1 for RX) and channel id.
- memory-region: the coherent memory shared across domains.
=====================================================================
Example:
imx_shmem_net: imx_shmem_net {
compatible = "fsl,imx-shmem-net";
mub-partition = <1>;
mbox-names = "tx", "rx";
mboxes = <&lsio_mu8b 0 1
&lsio_mu8b 1 1>;
status = "disabled";
};
&imx_shmem_net{
memory-region = <&shmem_dma_reserved>;
status = "okay";
};
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