diff --git a/plat/mediatek/mt8186/include/platform_def.h b/plat/mediatek/mt8186/include/platform_def.h
index 72fc0a6..c9d6f11 100644
--- a/plat/mediatek/mt8186/include/platform_def.h
+++ b/plat/mediatek/mt8186/include/platform_def.h
@@ -46,6 +46,11 @@
 #define BASE_GICD_BASE			MT_GIC_BASE
 #define MT_GIC_RDIST_BASE		(MT_GIC_BASE + 0x40000)
 
+#define SYS_CIRQ_BASE			(IO_PHYS + 0x204000)
+#define CIRQ_REG_NUM			11
+#define CIRQ_IRQ_NUM			326
+#define CIRQ_SPI_START			64
+#define MD_WDT_IRQ_BIT_ID		107
 /*******************************************************************************
  * System counter frequency related constants
  ******************************************************************************/
diff --git a/plat/mediatek/mt8186/platform.mk b/plat/mediatek/mt8186/platform.mk
index d7f48bd..7fd9990 100644
--- a/plat/mediatek/mt8186/platform.mk
+++ b/plat/mediatek/mt8186/platform.mk
@@ -38,6 +38,7 @@
                 ${MTK_PLAT}/common/mtk_sip_svc.c                      \
                 ${MTK_PLAT}/common/params_setup.c                     \
                 ${MTK_PLAT}/common/drivers/timer/mt_timer.c           \
+                ${MTK_PLAT}/common/mtk_cirq.c           	      \
                 ${MTK_PLAT_SOC}/aarch64/platform_common.c             \
                 ${MTK_PLAT_SOC}/aarch64/plat_helpers.S                \
                 ${MTK_PLAT_SOC}/bl31_plat_setup.c                     \