commit 59cfa139ccfee59c52d1e1d25d0497802fbe3ae1
author Samarth Parikh <samarth.parikh@arm.com> Thu Nov 23 14:23:21 2017 +0530
committer Samarth Parikh <samarth.parikh@arm.com> Mon Apr 16 20:52:14 2018 +0530
tree f6620967980446aa61e6fb1b87effe5796de77db
parent 078dc387b95d2682a3a5073641862a0350e6d875

plat/arm: Add MHUv2 support to SCMI driver

Currently the SCMI driver supports MHUv1, but Arm platforms may have
varied versions of MHU driver, with MHUv2 controllers being in the
latest Arm platforms.

This patch updates the SCMI driver to support MHUv2, specifically that
the sender must send the wake-up to the receiver before initiating any
data transfer.

Also, the existing mhu driver files, css_mhu.c and css_mhu.h, have been
moved from the scpi directory to a new directory, css/drivers/mhu.

Change-Id: I9b46b492a3e1d9e26db12d83a9773958a8c8402f
Signed-off-by: Samarth Parikh <samarth.parikh@arm.com>