162306a36Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci# 362306a36Sopenharmony_ci# CDX bus configuration 462306a36Sopenharmony_ci# 562306a36Sopenharmony_ci# Copyright (C) 2022-2023, Advanced Micro Devices, Inc. 662306a36Sopenharmony_ci# 762306a36Sopenharmony_ci 862306a36Sopenharmony_ciconfig CDX_BUS 962306a36Sopenharmony_ci bool "CDX Bus driver" 1062306a36Sopenharmony_ci depends on OF && ARM64 1162306a36Sopenharmony_ci help 1262306a36Sopenharmony_ci Driver to enable Composable DMA Transfer(CDX) Bus. CDX bus 1362306a36Sopenharmony_ci exposes Fabric devices which uses composable DMA IP to the 1462306a36Sopenharmony_ci APU. CDX bus provides a mechanism for scanning and probing 1562306a36Sopenharmony_ci of CDX devices. CDX devices are memory mapped on system bus 1662306a36Sopenharmony_ci for embedded CPUs. CDX bus uses CDX controller and firmware 1762306a36Sopenharmony_ci to scan these CDX devices. 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_cisource "drivers/cdx/controller/Kconfig" 20