diff --git a/arch/arm/mach-stm32mp/stm32mp1/cpu.c b/arch/arm/mach-stm32mp/stm32mp1/cpu.c
index cb1b84c..d5eaf67 100644
--- a/arch/arm/mach-stm32mp/stm32mp1/cpu.c
+++ b/arch/arm/mach-stm32mp/stm32mp1/cpu.c
@@ -82,7 +82,7 @@
 		option = DCACHE_DEFAULT_OPTION;
 		if (use_lmb &&
 		    (lmb_is_reserved_flags(i << MMU_SECTION_SHIFT, LMB_NOMAP) ||
-		    addr >= gd->ram_top)
+		     (gd->ram_top && addr >= gd->ram_top))
 		   )
 			option = 0; /* INVALID ENTRY in TLB */
 		set_section_dcache(i, option);