diff --git a/plat/arm/board/fvp/include/platform_def.h b/plat/arm/board/fvp/include/platform_def.h
index 82bd7c8..c75aca7 100644
--- a/plat/arm/board/fvp/include/platform_def.h
+++ b/plat/arm/board/fvp/include/platform_def.h
@@ -197,6 +197,9 @@
 # define PLAT_ARM_MAX_BL2_SIZE	(UL(0x1E000) - FVP_BL2_ROMLIB_OPTIMIZATION)
 #elif CRYPTO_SUPPORT
 # define PLAT_ARM_MAX_BL2_SIZE	(UL(0x1D000) - FVP_BL2_ROMLIB_OPTIMIZATION)
+#elif ARM_BL31_IN_DRAM
+/* When ARM_BL31_IN_DRAM is set, BL2 can use almost all of Trusted SRAM. */
+# define PLAT_ARM_MAX_BL2_SIZE	(UL(0x1F000) - FVP_BL2_ROMLIB_OPTIMIZATION)
 #else
 # define PLAT_ARM_MAX_BL2_SIZE	(UL(0x13000) - FVP_BL2_ROMLIB_OPTIMIZATION)
 #endif