soc: ti: Add wkup_m3_ipc driver
authorDave Gerlach <d-gerlach@ti.com>
Wed, 23 Sep 2015 00:14:54 +0000 (19:14 -0500)
committerTony Lindgren <tony@atomide.com>
Thu, 3 Dec 2015 15:24:29 +0000 (07:24 -0800)
commitcdd5de500b2c90d5181ebc963826019a0a4234ba
tree95c71a38799ca15b905236335c446c207a0f9ebd
parentfe9b867d24c93c99b17994de54dacbcc015349d2
soc: ti: Add wkup_m3_ipc driver

Introduce a wkup_m3_ipc driver to handle communication between the MPU
and Cortex M3 wkup_m3 present on am335x.

This driver is responsible for actually booting the wkup_m3_rproc and
also handling all IPC which is done using the IPC registers in the control
module, a mailbox, and a separate interrupt back from the wkup_m3. A small
API is exposed for executing specific power commands, which include
configuring for low power mode, request a transition to a low power mode,
and status info on a previous transition.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
drivers/soc/ti/Kconfig
drivers/soc/ti/Makefile
drivers/soc/ti/wkup_m3_ipc.c [new file with mode: 0644]
include/linux/wkup_m3_ipc.h [new file with mode: 0644]