1config HAS_NS16550 2 bool 3 default y 4 help 5 This selects the 16550-series UART support. For most systems, say Y. 6 7config HAS_CADENCE_UART 8 bool 9 default y 10 depends on ARM_64 11 help 12 This selects the Xilinx Zynq Cadence UART. If you have a Xilinx Zynq 13 based board, say Y. 14 15config HAS_PL011 16 bool 17 default y 18 depends on ARM 19 help 20 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have 21 an Integrator/PP2, Integrator/CP or Versatile platform, say Y. 22 23config HAS_EXYNOS4210 24 bool 25 default y 26 depends on ARM_32 27 help 28 This selects the Samsung Exynos 4210 UART. If you have a Samsung 29 Exynos based board, say Y. 30 31config HAS_OMAP 32 bool 33 default y 34 depends on ARM_32 35 help 36 This selects the Texas Instruments OMAP UART. If you have a Texas 37 Instruments based CPU, say Y. 38 39config HAS_SCIF 40 bool 41 default y 42 depends on ARM 43 help 44 This selects the SuperH SCI(F) UART. If you have a SuperH based board, 45 or Renesas R-Car Gen 2/3 based board say Y. 46 47config HAS_EHCI 48 bool 49 help 50 This selects the USB based EHCI debug port to be used as a UART. If 51 you have an x86 based system with USB, say Y. 52