Support for NXP's i.MX8 SoCs timer IPC

NXP's i.MX8 SoCs have system controller (M4 core) which takes
control of timer management like SRTC, watchdog etc., other
Cortex-A clusters can send out command via MU (Message Unit)
to system controller for timer operation etc..

This patch adds timer IPC(inter-processor communication) support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
5 files changed