The Arm Message Handling Unit (MHU) is a mailbox controller used to
communicate with other processing element(s). Adding a driver to
enable the communication:
- Adding generic MHU driver interface,
- Adding MHU_v2_x driver.
Driver supports:
- Discovering available MHU channels,
- Sending / receiving words over MHU channels,
- Signaling happens over a dedicated channel.
Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Signed-off-by: David Vincze <david.vincze@arm.com>
Change-Id: I41a5b968f6b8319cdbdf7907d70bd8837839862e
af26d7d6f0