--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -218,6 +218,8 @@ void __init plat_time_init(void)
 	mips_hpt_frequency = clk_get_rate(clk) / 2;
 }
 
+__setup("board=", mips_machtype_setup);
+
 static int __init ath79_setup(void)
 {
 	ath79_gpio_init();