diff --git a/plat/imx/imx8m/imx8mn/imx8mn_bl31_setup.c b/plat/imx/imx8m/imx8mn/imx8mn_bl31_setup.c
index 464c87d..de30967 100644
--- a/plat/imx/imx8m/imx8mn/imx8mn_bl31_setup.c
+++ b/plat/imx/imx8m/imx8mn/imx8mn_bl31_setup.c
@@ -32,7 +32,9 @@
 #define TRUSTY_PARAMS_LEN_BYTES      (4096*2)
 
 static const mmap_region_t imx_mmap[] = {
-	GIC_MAP, AIPS_MAP, OCRAM_S_MAP, DDRC_MAP, {0},
+	GIC_MAP, AIPS_MAP, OCRAM_S_MAP, DDRC_MAP,
+	CAAM_RAM_MAP, NS_OCRAM_MAP, ROM_MAP, DRAM_MAP,
+	{0},
 };
 
 static const struct aipstz_cfg aipstz[] = {
diff --git a/plat/imx/imx8m/imx8mn/include/platform_def.h b/plat/imx/imx8m/imx8mn/include/platform_def.h
index dbb4416..d4b1717 100644
--- a/plat/imx/imx8m/imx8mn/include/platform_def.h
+++ b/plat/imx/imx8m/imx8mn/include/platform_def.h
@@ -94,6 +94,13 @@
 #define IMX_DDR_IPS_BASE		U(0x3d000000)
 #define IMX_DDR_IPS_SIZE		U(0x1800000)
 #define IMX_ROM_BASE			U(0x0)
+#define IMX_ROM_SIZE			U(0x40000)
+#define IMX_NS_OCRAM_BASE		U(0x900000)
+#define IMX_NS_OCRAM_SIZE		U(0x60000)
+#define IMX_CAAM_RAM_BASE		U(0x100000)
+#define IMX_CAAM_RAM_SIZE		U(0x10000)
+#define IMX_DRAM_BASE			U(0x40000000)
+#define IMX_DRAM_SIZE			U(0xc0000000)
 
 #define IMX_GIC_BASE			PLAT_GICD_BASE
 #define IMX_GIC_SIZE			U(0x200000)
@@ -140,5 +147,16 @@
 #define AIPS_MAP	MAP_REGION_FLAT(IMX_AIPS_BASE, IMX_AIPS_SIZE, MT_DEVICE | MT_RW) /* AIPS map */
 #define OCRAM_S_MAP	MAP_REGION_FLAT(OCRAM_S_BASE, OCRAM_S_SIZE, MT_DEVICE | MT_RW) /* OCRAM_S */
 #define DDRC_MAP	MAP_REGION_FLAT(IMX_DDRPHY_BASE, IMX_DDR_IPS_SIZE, MT_DEVICE | MT_RW) /* DDRMIX */
+#define CAAM_RAM_MAP	MAP_REGION_FLAT(IMX_CAAM_RAM_BASE, IMX_CAAM_RAM_SIZE, MT_MEMORY | MT_RW) /* CAMM RAM */
+#define NS_OCRAM_MAP	MAP_REGION_FLAT(IMX_NS_OCRAM_BASE, IMX_NS_OCRAM_SIZE, MT_MEMORY | MT_RW) /* NS OCRAM */
+#define ROM_MAP		MAP_REGION_FLAT(IMX_ROM_BASE, IMX_ROM_SIZE, MT_MEMORY | MT_RO) /* ROM code */
+
+/*
+ * Note: DRAM region is mapped with entire size available and uses MT_RW
+ * attributes.
+ * See details in docs/plat/imx8m.rst "High Assurance Boot (HABv4)" section
+ * for explanation of this mapping scheme.
+ */
+#define DRAM_MAP	MAP_REGION_FLAT(IMX_DRAM_BASE, IMX_DRAM_SIZE, MT_MEMORY | MT_RW | MT_NS) /* DRAM */
 
 #endif /* platform_def.h */