diff --git a/plat/mediatek/mt8196/include/platform_def.h b/plat/mediatek/mt8196/include/platform_def.h
index 83370d6c5..4fa3079f7 100644
--- a/plat/mediatek/mt8196/include/platform_def.h
+++ b/plat/mediatek/mt8196/include/platform_def.h
@@ -280,8 +280,6 @@
  ******************************************************************************/
 #define PLAT_CPU_PM_B_BUCK_ISO_ID	(6)
 #define PLAT_CPU_PM_ILDO_ID		(6)
-#define CPU_IDLE_SRAM_BASE		(0x11B000)
-#define CPU_IDLE_SRAM_SIZE		(0x1000)
 
 /*******************************************************************************
  * SYSTIMER related definitions
diff --git a/plat/mediatek/mt8196/plat_mmap.c b/plat/mediatek/mt8196/plat_mmap.c
index d32f4eef2..11cb70007 100644
--- a/plat/mediatek/mt8196/plat_mmap.c
+++ b/plat/mediatek/mt8196/plat_mmap.c
@@ -15,8 +15,6 @@ static const mmap_region_t plat_mmap[] = {
 			MT_DEVICE | MT_RW | MT_SECURE),
 	MAP_REGION_FLAT(MTK_DEV_RNG1_BASE, MTK_DEV_RNG1_SIZE,
 			MT_DEVICE | MT_RW | MT_SECURE),
-	MAP_REGION_FLAT(CPU_IDLE_SRAM_BASE, CPU_IDLE_SRAM_SIZE,
-			MT_DEVICE | MT_RW | MT_SECURE),
 	MAP_REGION_FLAT(DP_SEC_BASE, DP_SEC_SIZE,
 			MT_DEVICE | MT_RW | MT_SECURE),
 	MAP_REGION_FLAT(EDP_SEC_BASE, EDP_SEC_SIZE,