diff --git a/arch/powerpc/platforms/powernv/opal-fadump.c b/arch/powerpc/platforms/powernv/opal-fadump.c
index 9d74d3950a52..5e147f32e932 100644
--- a/arch/powerpc/platforms/powernv/opal-fadump.c
+++ b/arch/powerpc/platforms/powernv/opal-fadump.c
@@ -587,10 +587,10 @@ static void opal_fadump_region_show(struct fw_dump *fadump_conf,
 			   be64_to_cpu(fdm_ptr->rgn[i].size), dumped_bytes);
 	}
 
-	/* Dump is active. Show reserved area start address. */
+	/* Dump is active. Show preserved area start address. */
 	if (fadump_conf->dump_active) {
-		seq_printf(m, "\nMemory above %#016lx is reserved for saving crash dump\n",
-			   fadump_conf->reserve_dump_area_start);
+		seq_printf(m, "\nMemory above %#016llx is reserved for saving crash dump\n",
+			   fadump_conf->boot_mem_top);
 	}
 }
 
diff --git a/arch/powerpc/platforms/pseries/rtas-fadump.c b/arch/powerpc/platforms/pseries/rtas-fadump.c
index bc8d1ce20f8f..5fb26a18c398 100644
--- a/arch/powerpc/platforms/pseries/rtas-fadump.c
+++ b/arch/powerpc/platforms/pseries/rtas-fadump.c
@@ -468,10 +468,10 @@ static void rtas_fadump_region_show(struct fw_dump *fadump_conf,
 		   be64_to_cpu(fdm_ptr->rmr_region.source_len),
 		   be64_to_cpu(fdm_ptr->rmr_region.bytes_dumped));
 
-	/* Dump is active. Show reserved area start address. */
+	/* Dump is active. Show preserved area start address. */
 	if (fdm_active) {
-		seq_printf(m, "\nMemory above %#016lx is reserved for saving crash dump\n",
-			   fadump_conf->reserve_dump_area_start);
+		seq_printf(m, "\nMemory above %#016llx is reserved for saving crash dump\n",
+			   fadump_conf->boot_mem_top);
 	}
 }