diff --git a/src/soc/mediatek/mt8186/emi.c b/src/soc/mediatek/common/emi.c
similarity index 86%
rename from src/soc/mediatek/mt8186/emi.c
rename to src/soc/mediatek/common/emi.c
index 4f300da793..d5470d2fd3 100644
--- a/src/soc/mediatek/mt8186/emi.c
+++ b/src/soc/mediatek/common/emi.c
@@ -1,10 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
-/*
- * This file is created based on MT8186 Functional Specification
- * Chapter number: 4.8
- */
-
 #include <assert.h>
 #include <cbmem.h>
 #include <commonlib/bsd/mem_chip_info.h>
diff --git a/src/soc/mediatek/mt8186/Makefile.inc b/src/soc/mediatek/mt8186/Makefile.inc
index f214bbdaef..5f070a0b06 100644
--- a/src/soc/mediatek/mt8186/Makefile.inc
+++ b/src/soc/mediatek/mt8186/Makefile.inc
@@ -19,7 +19,7 @@ bootblock-y += ../common/wdt.c ../common/wdt_req.c wdt.c
 romstage-y += ../common/cbmem.c
 romstage-y += ../common/dram_init.c
 romstage-y += ../common/dramc_param.c
-romstage-y += emi.c
+romstage-y += ../common/emi.c
 romstage-y += ../common/memory.c
 romstage-y += ../common/memory_test.c
 romstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c
@@ -31,7 +31,7 @@ ramstage-y += ../common/ddp.c ddp.c
 ramstage-y += devapc.c
 ramstage-y += ../common/dfd.c
 ramstage-y += ../common/dsi.c ../common/mtk_mipi_dphy.c
-ramstage-y += emi.c
+ramstage-y += ../common/emi.c
 ramstage-y += ../common/mcu.c
 ramstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c
 ramstage-$(CONFIG_COMMONLIB_STORAGE_MMC) += ../common/msdc.c msdc.c