linux-phytec-ti

ARM: dts: dra72-evm-common: Add mailboxes to IPU and DSP nodes

Add the required mailboxes to all the remote processor device
nodes (IPU1, IPU2 and DSP1) for all the DRA72 EVM boards. The
data is added to the dra72-evm-common dtsi file since it is
common to all DRA72 EVM board variations.

This is required for running the Remote Processor Messaging
(RPMsg) stack between the host processor and each of the
remoteprocs. This data is identical to that of the equivalent
processors on the DRA7 EVM board to maintain firmware
compatibility between both the SoC and board variants.

Each of the remote processors uses a single sub-mailbox node, the
IPUs are assumed to be running in SMP-mode. The chosen sub-mailboxes
match the values used in the current firmware images. This can be
changed, if needed, as per the system integration needs after making
appropriate changes on the firmware side as well.

Signed-off-by: Suman Anna <s-anna@ti.com>