src/soc/amd/common/block/smn/Makefile.inc - coreboot - Gitiles

 ## SPDX-License-Identifier: GPL-2.0-only
 ifeq ($(CONFIG_SOC_AMD_COMMON_BLOCK_SMN),y)

 bootblock-y += smn.c
 romstage-y += smn.c
 ramstage-y += smn.c
 smm-y += smn.c

 endif # CONFIG_SOC_AMD_COMMON_BLOCK_SMN
	## SPDX-License-Identifier: GPL-2.0-only
	ifeq ($(CONFIG_SOC_AMD_COMMON_BLOCK_SMN),y)

	bootblock-y += smn.c
	romstage-y += smn.c
	ramstage-y += smn.c
	smm-y += smn.c

	endif # CONFIG_SOC_AMD_COMMON_BLOCK_SMN