diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index 29edb4b..a8211bd 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -618,7 +618,7 @@
  * Trusted DRAM (if available) or the DRAM region secured by the TrustZone
  * controller.
  */
-# if SPM_MM
+# if SPM_MM || SPMC_AT_EL3
 #  define TSP_SEC_MEM_BASE		(ARM_AP_TZC_DRAM1_BASE + ULL(0x200000))
 #  define TSP_SEC_MEM_SIZE		(ARM_AP_TZC_DRAM1_SIZE - ULL(0x200000))
 #  define BL32_BASE			(ARM_AP_TZC_DRAM1_BASE + ULL(0x200000))
@@ -664,12 +664,13 @@
 
 /*
  * BL32 is mandatory in AArch32. In AArch64, undefine BL32_BASE if there is no
- * SPD and no SPM-MM, as they are the only ones that can be used as BL32.
+ * SPD and no SPM-MM and no SPMC-AT-EL3, as they are the only ones that can be
+ * used as BL32.
  */
 #if defined(__aarch64__) && !JUNO_AARCH32_EL3_RUNTIME
-# if defined(SPD_none) && !SPM_MM
+# if defined(SPD_none) && !SPM_MM && !SPMC_AT_EL3
 #  undef BL32_BASE
-# endif /* defined(SPD_none) && !SPM_MM */
+# endif /* defined(SPD_none) && !SPM_MM || !SPMC_AT_EL3 */
 #endif /* defined(__aarch64__) && !JUNO_AARCH32_EL3_RUNTIME */
 
 /*******************************************************************************