| # SPDX-License-Identifier: GPL-2.0-only |
| config IMX_DSP |
| tristate "IMX DSP Protocol driver" |
| depends on IMX_MBOX |
| help |
| This enables DSP IPC protocol between host AP (Linux) |
| and the firmware running on DSP. |
| DSP exists on some i.MX8 processors (e.g i.MX8QM, i.MX8QXP). |
| |
| It acts like a doorbell. Client might use shared memory to |
| exchange information with DSP side. |
| |
| config IMX_SCU |
| bool "IMX SCU Protocol driver" |
| depends on IMX_MBOX |
| select SOC_BUS |
| help |
| The System Controller Firmware (SCFW) is a low-level system function |
| which runs on a dedicated Cortex-M core to provide power, clock, and |
| resource management. It exists on some i.MX8 processors. e.g. i.MX8QM |
| (QM, QP), and i.MX8QX (QXP, DX). |
| |
| This driver manages the IPC interface between host CPU and the |
| SCU firmware running on M4. |
