diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index 968da50b5111..39ab3e786e59 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -77,6 +77,8 @@ void __init plat_mem_setup(void)
 	 * parsed resulting in our memory appearing
 	 */
 	__dt_setup_arch(__dtb_start);
+
+	strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
 }
 
 void __init device_tree_init(void)