1# SPDX-License-Identifier: GPL-2.0-only
 2config IMX_DSP
 3	tristate "IMX DSP Protocol driver"
 4	depends on IMX_MBOX
 5	help
 6	  This enables DSP IPC protocol between host AP (Linux)
 7	  and the firmware running on DSP.
 8	  DSP exists on some i.MX8 processors (e.g i.MX8QM, i.MX8QXP).
 9
10	  It acts like a doorbell. Client might use shared memory to
11	  exchange information with DSP side.
12
13config IMX_SCU
14	bool "IMX SCU Protocol driver"
15	depends on IMX_MBOX
16	select SOC_BUS
17	help
18	  The System Controller Firmware (SCFW) is a low-level system function
19	  which runs on a dedicated Cortex-M core to provide power, clock, and
20	  resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
21	  (QM, QP), and i.MX8QX (QXP, DX).
22
23	  This driver manages the IPC interface between host CPU and the
24	  SCU firmware running on M4.