diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 34c4871..003d373 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -563,7 +563,9 @@
 		strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
 
 #ifdef CONFIG_CMDLINE
+#ifndef CONFIG_CMDLINE_FORCE
 	if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
+#endif
 		strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
 #endif /* CONFIG_CMDLINE */