+obj-$(CONFIG_BCM283X_MU_SERIAL) += serial_bcm283x_mu.o
+obj-$(CONFIG_BCM283X_PL011_SERIAL) += serial_bcm283x_pl011.o
+obj-$(CONFIG_MSM_SERIAL) += serial_msm.o
+obj-$(CONFIG_MVEBU_A3700_UART) += serial_mvebu_a3700.o
+obj-$(CONFIG_MPC8XX_CONS) += serial_mpc8xx.o
+obj-$(CONFIG_NULLDEV_SERIAL) += serial_nulldev.o
+obj-$(CONFIG_OWL_SERIAL) += serial_owl.o