1ec8f24b7SThomas Gleixner# SPDX-License-Identifier: GPL-2.0-only 2ffbf23d5SDaniel Balutaconfig IMX_DSP 3f52cdcceSDaniel Baluta tristate "IMX DSP Protocol driver" 4ffbf23d5SDaniel Baluta depends on IMX_MBOX 5ffbf23d5SDaniel Baluta help 6ffbf23d5SDaniel Baluta This enables DSP IPC protocol between host AP (Linux) 7ffbf23d5SDaniel Baluta and the firmware running on DSP. 8ffbf23d5SDaniel Baluta DSP exists on some i.MX8 processors (e.g i.MX8QM, i.MX8QXP). 9ffbf23d5SDaniel Baluta 10ffbf23d5SDaniel Baluta It acts like a doorbell. Client might use shared memory to 11ffbf23d5SDaniel Baluta exchange information with DSP side. 12ffbf23d5SDaniel Baluta 13edbee095SDong Aishengconfig IMX_SCU 14edbee095SDong Aisheng bool "IMX SCU Protocol driver" 1532ec783aSArnd Bergmann depends on IMX_MBOX 16*82c08278SRandy Dunlap select SOC_BUS 17edbee095SDong Aisheng help 18edbee095SDong Aisheng The System Controller Firmware (SCFW) is a low-level system function 19edbee095SDong Aisheng which runs on a dedicated Cortex-M core to provide power, clock, and 20edbee095SDong Aisheng resource management. It exists on some i.MX8 processors. e.g. i.MX8QM 21edbee095SDong Aisheng (QM, QP), and i.MX8QX (QXP, DX). 22edbee095SDong Aisheng 23edbee095SDong Aisheng This driver manages the IPC interface between host CPU and the 24edbee095SDong Aisheng SCU firmware running on M4. 25c800cd78SA.s. Dong 26c800cd78SA.s. Dongconfig IMX_SCU_PD 27c800cd78SA.s. Dong bool "IMX SCU Power Domain driver" 2832ec783aSArnd Bergmann depends on IMX_SCU 29c800cd78SA.s. Dong help 30c800cd78SA.s. Dong The System Controller Firmware (SCFW) based power domain driver. 31