menu "Serial drivers" config XENO_DRIVERS_16550A tristate "16550A UART driver" help Real-time UART driver for 16550A compatible controllers. See doc/txt/16550A-driver.txt for more details. choice prompt "Hardware access mode" depends on XENO_DRIVERS_16550A default XENO_DRIVERS_16550A_PIO config XENO_DRIVERS_16550A_PIO bool "Port-based I/O" help Hardware access only via I/O ports. Use module parameter "io=[,[,...]]" to specify the base port of a device. config XENO_DRIVERS_16550A_MMIO bool "Memory-mapped I/O" help Hardware access only via memory mapping. Use module paramter "mem=[,[,...]]" to specify the physical base address of a device. config XENO_DRIVERS_16550A_ANY bool "Any access mode" help Decide at module load-time (or via kernel parameter) which access mode to use for which device. This mode is useful when devices of both types can be present in a system, also at the same time. Both "io" and "mem" module parameters are available, but always only one of them can be applied on a particular device. Use, e.g., "io=0x3f8,0 mem=0,0xe0000000" to address device 1 via IO base port 0x3f8 and device 2 via physical base address 0xe0000000. endchoice config XENO_DRIVERS_16550A_PCI depends on PCI && (XENO_DRIVERS_16550A_PIO || XENO_DRIVERS_16550A_ANY) bool "PCI board support" default n help This option activates support for PCI serial boards. config XENO_DRIVERS_16550A_PCI_MOXA depends on XENO_DRIVERS_16550A_PCI bool "Moxa PCI boards" default n help This option activates support for the following Moxa boards: PCI Serial Boards: C104H/PCI, C168H/PCI CP-114, CP-132 Universal PCI Serial Boards: CP-102U, CP-102UL, CP-104U CP-112UL, CP-114UL, CP-118U CP-132U, CP-134U, CP-138U CP-168U config XENO_DRIVERS_MPC52XX_UART depends on PPC_MPC52xx tristate "MPC52xx PSC UART driver" help Real-time UART driver for the PSC on the MPC5200 processor. config XENO_DRIVERS_IMX_UART depends on ARCH_IMX || ARCH_MXC tristate "RT IMX UART driver" select RATIONAL help Real-time UART driver for the Freescale Semiconductor MXC Internal UART compatible controllers. endmenu