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#
# Serial device configuration
#
# $Id: Kconfig,v 1.11 2004/03/11 18:08:04 lethal Exp $
#

menu "Serial drivers"
        depends on HAS_IOMEM

#
# The new 8250/16550 serial drivers
config SERIAL_8250
        tristate "8250/16550 and compatible serial support"
        depends on (BROKEN || !SPARC)
        select SERIAL_CORE
        ---help---
          This selects whether you want to include the driver for the standard
          serial ports.  The standard answer is Y.  People who might say N
          here are those that are setting up dedicated Ethernet WWW/FTP
          servers, or users that have one of the various bus mice instead of a
          serial mouse and don't intend to use their machine's standard serial
          port for anything.  (Note that the Cyclades and Stallion multi
          serial port drivers do not need this driver built in for them to
          work.)

          To compile this driver as a module, choose M here: the
          module will be called 8250.
          [WARNING: Do not compile this driver as a module if you are using
          non-standard serial ports, since the configuration information will
          be lost when the driver is unloaded.  This limitation may be lifted
          in the future.]

          BTW1: If you have a mouseman serial mouse which is not recognized by
          the X window system, try running gpm first.

          BTW2: If you intend to use a software modem (also called Winmodem)
          under Linux, forget it.  These modems are crippled and require
          proprietary drivers which are only available under Windows.

          Most people will say Y or M here, so that they can use serial mice,
          modems and similar devices connecting to the standard serial ports.

config SERIAL_8250_CONSOLE
        bool "Console on 8250/16550 and compatible serial port"
        depends on SERIAL_8250=y
        select SERIAL_CORE_CONSOLE
        ---help---
          If you say Y here, it will be possible to use a serial port as the
          system console (the system console is the device which receives all
          kernel messages and warnings and which allows logins in single user
          mode). This could be useful if some terminal or printer is connected
          to that serial port.

          Even if you say Y here, the currently visible virtual console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttyS1". (Try "man bootparam" or see the documentation of
          your boot loader (grub or lilo or loadlin) about how to pass options
          to the kernel at boot time.)

          If you don't have a VGA card installed and you say Y here, the
          kernel will automatically use the first serial line, /dev/ttyS0, as
          system console.

          You can set that using a kernel command line option such as
          "console=uart8250,io,0x3f8,9600n8"
          "console=uart8250,mmio,0xff5e0000,115200n8".
          and it will switch to normal serial console when the corresponding 
          port is ready.
          "earlycon=uart8250,io,0x3f8,9600n8"
          "earlycon=uart8250,mmio,0xff5e0000,115200n8".
          it will not only setup early console.

          If unsure, say N.

config FIX_EARLYCON_MEM
        bool
        depends on X86
        default y

config SERIAL_8250_GSC
        tristate
        depends on SERIAL_8250 && GSC
        default SERIAL_8250

config SERIAL_8250_PCI
        tristate "8250/16550 PCI device support" if EMBEDDED
        depends on SERIAL_8250 && PCI
        default SERIAL_8250
        help
          This builds standard PCI serial support. You may be able to
          disable this feature if you only need legacy serial support.
          Saves about 9K.

config SERIAL_8250_PNP
        tristate "8250/16550 PNP device support" if EMBEDDED
        depends on SERIAL_8250 && PNP
        default SERIAL_8250
        help
          This builds standard PNP serial support. You may be able to
          disable this feature if you only need legacy serial support.

config SERIAL_8250_HP300
        tristate
        depends on SERIAL_8250 && HP300
        default SERIAL_8250

config SERIAL_8250_CS
        tristate "8250/16550 PCMCIA device support"
        depends on PCMCIA && SERIAL_8250
        ---help---
          Say Y here to enable support for 16-bit PCMCIA serial devices,
          including serial port cards, modems, and the modem functions of
          multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
          credit-card size devices often used with laptops.)

          To compile this driver as a module, choose M here: the
          module will be called serial_cs.

          If unsure, say N.

config SERIAL_8250_NR_UARTS
        int "Maximum number of 8250/16550 serial ports"
        depends on SERIAL_8250
        default "4"
        help
          Set this to the number of serial ports you want the driver
          to support.  This includes any ports discovered via ACPI or
          PCI enumeration and any ports that may be added at run-time
          via hot-plug, or any ISA multi-port serial cards.

config SERIAL_8250_RUNTIME_UARTS
        int "Number of 8250/16550 serial ports to register at runtime"
        depends on SERIAL_8250
        range 0 SERIAL_8250_NR_UARTS
        default "4"
        help
          Set this to the maximum number of serial ports you want
          the kernel to register at boot time.  This can be overridden
          with the module parameter "nr_uarts", or boot-time parameter
          8250.nr_uarts

config SERIAL_8250_EXTENDED
        bool "Extended 8250/16550 serial driver options"
        depends on SERIAL_8250
        help
          If you wish to use any non-standard features of the standard "dumb"
          driver, say Y here. This includes HUB6 support, shared serial
          interrupts, special multiport support, support for more than the
          four COM 1/2/3/4 boards, etc.

          Note that the answer to this question won't directly affect the
          kernel: saying N will just cause the configurator to skip all
          the questions about serial driver options. If unsure, say N.

config SERIAL_8250_MANY_PORTS
        bool "Support more than 4 legacy serial ports"
        depends on SERIAL_8250_EXTENDED && !IA64
        help
          Say Y here if you have dumb serial boards other than the four
          standard COM 1/2/3/4 ports. This may happen if you have an AST
          FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
          from <http://www.tldp.org/docs.html#howto>), or other custom
          serial port hardware which acts similar to standard serial port
          hardware. If you only use the standard COM 1/2/3/4 ports, you can
          say N here to save some memory. You can also say Y if you have an
          "intelligent" multiport card such as Cyclades, Digiboards, etc.

#
# Multi-port serial cards
#

config SERIAL_8250_FOURPORT
        tristate "Support Fourport cards"
        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
        help
          Say Y here if you have an AST FourPort serial board.

          To compile this driver as a module, choose M here: the module
          will be called 8250_fourport.

config SERIAL_8250_ACCENT
        tristate "Support Accent cards"
        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
        help
          Say Y here if you have an Accent Async serial board.

          To compile this driver as a module, choose M here: the module
          will be called 8250_accent.

config SERIAL_8250_BOCA
        tristate "Support Boca cards"
        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
        help
          Say Y here if you have a Boca serial board.  Please read the Boca
          mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>

          To compile this driver as a module, choose M here: the module
          will be called 8250_boca.

config SERIAL_8250_EXAR_ST16C554
        tristate "Support Exar ST16C554/554D Quad UART"
        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
        help
          The Uplogix Envoy TU301 uses this Exar Quad UART.  If you are
          tinkering with your Envoy TU301, or have a machine with this UART,
          say Y here.

          To compile this driver as a module, choose M here: the module
          will be called 8250_exar_st16c554.

config SERIAL_8250_HUB6
        tristate "Support Hub6 cards"
        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
        help
          Say Y here if you have a HUB6 serial board.

          To compile this driver as a module, choose M here: the module
          will be called 8250_hub6.

config SERIAL_8250_SHARE_IRQ
        bool "Support for sharing serial interrupts"
        depends on SERIAL_8250_EXTENDED
        help
          Some serial boards have hardware support which allows multiple dumb
          serial ports on the same board to share a single IRQ. To enable
          support for this in the serial driver, say Y here.

config SERIAL_8250_DETECT_IRQ
        bool "Autodetect IRQ on standard ports (unsafe)"
        depends on SERIAL_8250_EXTENDED
        help
          Say Y here if you want the kernel to try to guess which IRQ
          to use for your serial port.

          This is considered unsafe; it is far better to configure the IRQ in
          a boot script using the setserial command.

          If unsure, say N.

config SERIAL_8250_RSA
        bool "Support RSA serial ports"
        depends on SERIAL_8250_EXTENDED
        help
          ::: To be written :::

config SERIAL_8250_MCA
        tristate "Support 8250-type ports on MCA buses"
        depends on SERIAL_8250 != n && MCA
        help
          Say Y here if you have a MCA serial ports.

          To compile this driver as a module, choose M here: the module
          will be called 8250_mca.

config SERIAL_8250_ACORN
        tristate "Acorn expansion card serial port support"
        depends on ARCH_ACORN && SERIAL_8250
        help
          If you have an Atomwide Serial card or Serial Port card for an Acorn
          system, say Y to this option.  The driver can handle 1, 2, or 3 port
          cards.  If unsure, say N.

config SERIAL_8250_AU1X00
        bool "AU1X00 serial port support"
        depends on SERIAL_8250 != n && SOC_AU1X00
        help
          If you have an Au1x00 board and want to use the serial port, say Y
          to this option.  The driver can handle 1 or 2 serial ports.
          If unsure, say N.

config SERIAL_8250_RM9K
        bool "Support for MIPS RM9xxx integrated serial port"
        depends on SERIAL_8250 != n && SERIAL_RM9000
        select SERIAL_8250_SHARE_IRQ
        help
          Selecting this option will add support for the integrated serial
          port hardware found on MIPS RM9122 and similar processors.
          If unsure, say N.

comment "Non-8250 serial port support"

config SERIAL_AMBA_PL010
        tristate "ARM AMBA PL010 serial port support"
        depends on ARM_AMBA && (BROKEN || !ARCH_VERSATILE)
        select SERIAL_CORE
        help
          This selects the ARM(R) AMBA(R) PrimeCell PL010 UART.  If you have
          an Integrator/AP or Integrator/PP2 platform, or if you have a
          Cirrus Logic EP93xx CPU, say Y or M here.

          If unsure, say N.

config SERIAL_AMBA_PL010_CONSOLE
        bool "Support for console on AMBA serial port"
        depends on SERIAL_AMBA_PL010=y
        select SERIAL_CORE_CONSOLE
        ---help---
          Say Y here if you wish to use an AMBA PrimeCell UART as the system
          console (the system console is the device which receives all kernel
          messages and warnings and which allows logins in single user mode).

          Even if you say Y here, the currently visible framebuffer console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttyAM0". (Try "man bootparam" or see the documentation of
          your boot loader (lilo or loadlin) about how to pass options to the
          kernel at boot time.)

config SERIAL_AMBA_PL011
        tristate "ARM AMBA PL011 serial port support"
        depends on ARM_AMBA
        select SERIAL_CORE
        help
          This selects the ARM(R) AMBA(R) PrimeCell PL011 UART.  If you have
          an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
          here.

          If unsure, say N.

config SERIAL_AMBA_PL011_CONSOLE
        bool "Support for console on AMBA serial port"
        depends on SERIAL_AMBA_PL011=y
        select SERIAL_CORE_CONSOLE
        ---help---
          Say Y here if you wish to use an AMBA PrimeCell UART as the system
          console (the system console is the device which receives all kernel
          messages and warnings and which allows logins in single user mode).

          Even if you say Y here, the currently visible framebuffer console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttyAMA0". (Try "man bootparam" or see the documentation of
          your boot loader (lilo or loadlin) about how to pass options to the
          kernel at boot time.)

config SERIAL_SB1250_DUART
        tristate "BCM1xxx on-chip DUART serial support"
        depends on SIBYTE_SB1xxx_SOC=y
        select SERIAL_CORE
        default y
        ---help---
          Support for the asynchronous serial interface (DUART) included in
          the BCM1250 and derived System-On-a-Chip (SOC) devices.  Note that
          the letter D in DUART stands for "dual", which is how the device
          is implemented.  Depending on the SOC configuration there may be
          one or more DUARTs available of which all are handled.

          If unsure, say Y.  To compile this driver as a module, choose M here:
          the module will be called sb1250-duart.

config SERIAL_SB1250_DUART_CONSOLE
        bool "Support for console on a BCM1xxx DUART serial port"
        depends on SERIAL_SB1250_DUART=y
        select SERIAL_CORE_CONSOLE
        default y
        ---help---
          If you say Y here, it will be possible to use a serial port as the
          system console (the system console is the device which receives all
          kernel messages and warnings and which allows logins in single user
          mode).

          If unsure, say Y.

config SERIAL_ATMEL
        bool "AT91 / AT32 on-chip serial port support"
        depends on (ARM && ARCH_AT91) || AVR32
        select SERIAL_CORE
        help
          This enables the driver for the on-chip UARTs of the Atmel
          AT91 and AT32 processors.

config SERIAL_ATMEL_CONSOLE
        bool "Support for console on AT91 / AT32 serial port"
        depends on SERIAL_ATMEL=y
        select SERIAL_CORE_CONSOLE
        help
          Say Y here if you wish to use an on-chip UART on a Atmel
          AT91 or AT32 processor as the system console (the system
          console is the device which receives all kernel messages and
          warnings and which allows logins in single user mode).

config SERIAL_ATMEL_TTYAT
        bool "Install as device ttyATn instead of ttySn"
        depends on SERIAL_ATMEL=y
        help
          Say Y here if you wish to have the internal AT91 / AT32 UARTs
          appear as /dev/ttyATn (major 204, minor starting at 154)
          instead of the normal /dev/ttySn (major 4, minor starting at
          64). This is necessary if you also want other UARTs, such as
          external 8250/16C550 compatible UARTs.
          The ttySn nodes are legally reserved for the 8250 serial driver
          but are often misused by other serial drivers.

          To use this, you should create suitable ttyATn device nodes in
          /dev/, and pass "console=ttyATn" to the kernel.

          Say Y if you have an external 8250/16C550 UART.  If unsure, say N.

config SERIAL_KS8695
        bool "Micrel KS8695 (Centaur) serial port support"
        depends on ARCH_KS8695
        select SERIAL_CORE
        help
          This selects the Micrel Centaur KS8695 UART.  Say Y here.

config SERIAL_KS8695_CONSOLE
        bool "Support for console on KS8695 (Centaur) serial port"
        depends on SERIAL_KS8695=y
        select SERIAL_CORE_CONSOLE
        help
          Say Y here if you wish to use a KS8695 (Centaur) UART as the
          system console (the system console is the device which
          receives all kernel messages and warnings and which allows
          logins in single user mode).

config SERIAL_CLPS711X
        tristate "CLPS711X serial port support"
        depends on ARM && ARCH_CLPS711X
        select SERIAL_CORE
        help
          ::: To be written :::

config SERIAL_CLPS711X_CONSOLE
        bool "Support for console on CLPS711X serial port"
        depends on SERIAL_CLPS711X=y
        select SERIAL_CORE_CONSOLE
        help
          Even if you say Y here, the currently visible virtual console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttyCL1". (Try "man bootparam" or see the documentation of
          your boot loader (lilo or loadlin) about how to pass options to the
          kernel at boot time.)

config SERIAL_S3C2410
        tristate "Samsung S3C2410/S3C2440/S3C2442/S3C2412 Serial port support"
        depends on ARM && ARCH_S3C2410
        select SERIAL_CORE
        help
          Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
          providing /dev/ttySAC0, 1 and 2 (note, some machines may not
          provide all of these ports, depending on how the serial port
          pins are configured.

          Currently this driver supports the UARTS on the S3C2410, S3C2440,
          S3C2442, S3C2412 and S3C2413 CPUs.

config SERIAL_S3C2410_CONSOLE
        bool "Support for console on S3C2410 serial port"
        depends on SERIAL_S3C2410=y
        select SERIAL_CORE_CONSOLE
        help
          Allow selection of the S3C24XX on-board serial ports for use as
          an virtual console.

          Even if you say Y here, the currently visible virtual console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttySACx". (Try "man bootparam" or see the documentation of
          your boot loader about how to pass options to the kernel at
          boot time.)

config SERIAL_DZ
        bool "DECstation DZ serial driver"
        depends on MACH_DECSTATION && 32BIT
        select SERIAL_CORE
        help
          DZ11-family serial controllers for VAXstations, including the
          DC7085, M7814, and M7819.

config SERIAL_DZ_CONSOLE
        bool "Support console on DECstation DZ serial driver"
        depends on SERIAL_DZ=y
        select SERIAL_CORE_CONSOLE
        help
          If you say Y here, it will be possible to use a serial port as the
          system console (the system console is the device which receives all
          kernel messages and warnings and which allows logins in single user
          mode).  Note that the firmware uses ttyS0 as the serial console on
          the Maxine and ttyS2 on the others.

          If unsure, say Y.

config SERIAL_ZS
        tristate "DECstation Z85C30 serial support"
        depends on MACH_DECSTATION
        select SERIAL_CORE
        default y
        ---help---
          Support for the Zilog 85C350 serial communications controller used
          for serial ports in newer DECstation systems.  These include the
          DECsystem 5900 and all models of the DECstation and DECsystem 5000
          systems except from model 200.

          If unsure, say Y.  To compile this driver as a module, choose M here:
          the module will be called zs.

config SERIAL_ZS_CONSOLE
        bool "Support for console on a DECstation Z85C30 serial port"
        depends on SERIAL_ZS=y
        select SERIAL_CORE_CONSOLE
        default y
        ---help---
          If you say Y here, it will be possible to use a serial port as the
          system console (the system console is the device which receives all
          kernel messages and warnings and which allows logins in single user
          mode).

          Note that the firmware uses ttyS1 as the serial console on the
          Maxine and ttyS3 on the others using this driver.

          If unsure, say Y.

config SERIAL_21285
        tristate "DC21285 serial port support"
        depends on ARM && FOOTBRIDGE
        select SERIAL_CORE
        help
          If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
          PCI bridge you can enable its onboard serial port by enabling this
          option.

config SERIAL_21285_CONSOLE
        bool "Console on DC21285 serial port"
        depends on SERIAL_21285=y
        select SERIAL_CORE_CONSOLE
        help
          If you have enabled the serial port on the 21285 footbridge you can
          make it the console by answering Y to this option.

          Even if you say Y here, the currently visible virtual console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttyFB". (Try "man bootparam" or see the documentation of
          your boot loader (lilo or loadlin) about how to pass options to the
          kernel at boot time.)

config SERIAL_MPSC
        bool "Marvell MPSC serial port support"
        depends on PPC32 && MV64X60
        select SERIAL_CORE
        help
          Say Y here if you want to use the Marvell MPSC serial controller.

config SERIAL_MPSC_CONSOLE
        bool "Support for console on Marvell MPSC serial port"
        depends on SERIAL_MPSC
        select SERIAL_CORE_CONSOLE
        help
          Say Y here if you want to support a serial console on a Marvell MPSC.

config SERIAL_PXA
        bool "PXA serial port support"
        depends on ARM && ARCH_PXA
        select SERIAL_CORE
        help
          If you have a machine based on an Intel XScale PXA2xx CPU you
          can enable its onboard serial ports by enabling this option.

config SERIAL_PXA_CONSOLE
        bool "Console on PXA serial port"
        depends on SERIAL_PXA
        select SERIAL_CORE_CONSOLE
        help
          If you have enabled the serial port on the Intel XScale PXA
          CPU you can make it the console by answering Y to this option.

          Even if you say Y here, the currently visible virtual console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttySA0". (Try "man bootparam" or see the documentation of
          your boot loader (lilo or loadlin) about how to pass options to the
          kernel at boot time.)

config SERIAL_SA1100
        bool "SA1100 serial port support"
        depends on ARM && ARCH_SA1100
        select SERIAL_CORE
        help
          If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
          can enable its onboard serial port by enabling this option.
          Please read <file:Documentation/arm/SA1100/serial_UART> for further
          info.

config SERIAL_SA1100_CONSOLE
        bool "Console on SA1100 serial port"
        depends on SERIAL_SA1100
        select SERIAL_CORE_CONSOLE
        help
          If you have enabled the serial port on the SA1100/SA1110 StrongARM
          CPU you can make it the console by answering Y to this option.

          Even if you say Y here, the currently visible virtual console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttySA0". (Try "man bootparam" or see the documentation of
          your boot loader (lilo or loadlin) about how to pass options to the
          kernel at boot time.)

config SERIAL_BFIN
        tristate "Blackfin serial port support"
        depends on BLACKFIN
        select SERIAL_CORE
        select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
        help
          Add support for the built-in UARTs on the Blackfin.

          To compile this driver as a module, choose M here: the
          module will be called bfin_5xx.

config SERIAL_BFIN_CONSOLE
        bool "Console on Blackfin serial port"
        depends on SERIAL_BFIN=y
        select SERIAL_CORE_CONSOLE

choice
        prompt "UART Mode"
        depends on SERIAL_BFIN
        default SERIAL_BFIN_DMA
        help
          This driver supports the built-in serial ports of the Blackfin family
          of CPUs

config SERIAL_BFIN_DMA
        bool "DMA mode"
        depends on !DMA_UNCACHED_NONE && !KGDB_UART
        help
          This driver works under DMA mode. If this option is selected, the
          blackfin simple dma driver is also enabled.

config SERIAL_BFIN_PIO
        bool "PIO mode"
        help
          This driver works under PIO mode.

endchoice

config SERIAL_BFIN_UART0
        bool "Enable UART0"
        depends on SERIAL_BFIN
        help
          Enable UART0

config BFIN_UART0_CTSRTS
        bool "Enable UART0 hardware flow control"
        depends on SERIAL_BFIN_UART0
        help
          Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
          signal.

config UART0_CTS_PIN
        int "UART0 CTS pin"
        depends on BFIN_UART0_CTSRTS
        default 23
        help
          The default pin is GPIO_GP7.
          Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.

config UART0_RTS_PIN
        int "UART0 RTS pin"
        depends on BFIN_UART0_CTSRTS
        default 22
        help
          The default pin is GPIO_GP6.
          Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.

config SERIAL_BFIN_UART1
        bool "Enable UART1"
        depends on SERIAL_BFIN && (BF534 || BF536 || BF537 || BF54x)
        help
          Enable UART1

config BFIN_UART1_CTSRTS
        bool "Enable UART1 hardware flow control"
        depends on SERIAL_BFIN_UART1
        help
          Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
          signal.

config UART1_CTS_PIN
        int "UART1 CTS pin"
        depends on BFIN_UART1_CTSRTS && (BF53x || BF561)
        default -1
        help
          Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.

config UART1_RTS_PIN
        int "UART1 RTS pin"
        depends on BFIN_UART1_CTSRTS && (BF53x || BF561)
        default -1
        help
          Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.

config SERIAL_BFIN_UART2
        bool "Enable UART2"
        depends on SERIAL_BFIN && (BF54x)
        help
          Enable UART2

config BFIN_UART2_CTSRTS
        bool "Enable UART2 hardware flow control"
        depends on SERIAL_BFIN_UART2
        help
          Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
          signal.

config UART2_CTS_PIN
        int "UART2 CTS pin"
        depends on BFIN_UART2_CTSRTS
        default -1
        help
          Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.

config UART2_RTS_PIN
        int "UART2 RTS pin"
        depends on BFIN_UART2_CTSRTS
        default -1
        help
          Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.

config SERIAL_BFIN_UART3
        bool "Enable UART3"
        depends on SERIAL_BFIN && (BF54x)
        help
          Enable UART3

config BFIN_UART3_CTSRTS
        bool "Enable UART3 hardware flow control"
        depends on SERIAL_BFIN_UART3
        help
          Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
          signal.

config SERIAL_IMX
        bool "IMX serial port support"
        depends on ARM && ARCH_IMX
        select SERIAL_CORE
        help
          If you have a machine based on a Motorola IMX CPU you
          can enable its onboard serial port by enabling this option.

config SERIAL_IMX_CONSOLE
        bool "Console on IMX serial port"
        depends on SERIAL_IMX
        select SERIAL_CORE_CONSOLE
        help
          If you have enabled the serial port on the Motorola IMX
          CPU you can make it the console by answering Y to this option.

          Even if you say Y here, the currently visible virtual console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttySA0". (Try "man bootparam" or see the documentation of
          your boot loader (lilo or loadlin) about how to pass options to the
          kernel at boot time.)

config SERIAL_UARTLITE
        tristate "Xilinx uartlite serial port support"
        depends on PPC32
        select SERIAL_CORE
        help
          Say Y here if you want to use the Xilinx uartlite serial controller.

          To compile this driver as a module, choose M here: the
          module will be called uartlite.ko.

config SERIAL_UARTLITE_CONSOLE
        bool "Support for console on Xilinx uartlite serial port"
        depends on SERIAL_UARTLITE=y
        select SERIAL_CORE_CONSOLE
        help
          Say Y here if you wish to use a Xilinx uartlite as the system
          console (the system console is the device which receives all kernel
          messages and warnings and which allows logins in single user mode).

config SERIAL_SUNCORE
        bool
        depends on SPARC
        select SERIAL_CORE
        select SERIAL_CORE_CONSOLE
        default y

config SERIAL_SUNZILOG
        tristate "Sun Zilog8530 serial support"
        depends on SPARC
        help
          This driver supports the Zilog8530 serial ports found on many Sparc
          systems.  Say Y or M if you want to be able to these serial ports.

config SERIAL_SUNZILOG_CONSOLE
        bool "Console on Sun Zilog8530 serial port"
        depends on SERIAL_SUNZILOG=y
        help
          If you would like to be able to use the Zilog8530 serial port
          on your Sparc system as the console, you can do so by answering
          Y to this option.

config SERIAL_SUNSU
        tristate "Sun SU serial support"
        depends on SPARC && PCI
        help
          This driver supports the 8250 serial ports that run the keyboard and
          mouse on (PCI) UltraSPARC systems.  Say Y or M if you want to be able
          to these serial ports.

config SERIAL_SUNSU_CONSOLE
        bool "Console on Sun SU serial port"
        depends on SERIAL_SUNSU=y
        help
          If you would like to be able to use the SU serial port
          on your Sparc system as the console, you can do so by answering
          Y to this option.

config SERIAL_MUX
        tristate "Serial MUX support"
        depends on GSC
        select SERIAL_CORE
        default y
        ---help---
          Saying Y here will enable the hardware MUX serial driver for
          the Nova, K class systems and D class with a 'remote control card'.
          The hardware MUX is not 8250/16550 compatible therefore the
          /dev/ttyB0 device is shared between the Serial MUX and the PDC
          software console. The following steps need to be completed to use
          the Serial MUX:

            1. create the device entry (mknod /dev/ttyB0 c 11 0)
            2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
            3. Add device ttyB0 to /etc/securetty (if you want to log on as
                 root on this console.)
            4. Change the kernel command console parameter to: console=ttyB0

config SERIAL_MUX_CONSOLE
        bool "Support for console on serial MUX"
        depends on SERIAL_MUX=y
        select SERIAL_CORE_CONSOLE
        default y

config PDC_CONSOLE
        bool "PDC software console support"
        depends on PARISC && !SERIAL_MUX && VT
        default n
        help
          Saying Y here will enable the software based PDC console to be 
          used as the system console.  This is useful for machines in 
          which the hardware based console has not been written yet.  The
          following steps must be competed to use the PDC console:

            1. create the device entry (mknod /dev/ttyB0 c 11 0)
            2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
            3. Add device ttyB0 to /etc/securetty (if you want to log on as
                 root on this console.)
            4. Change the kernel command console parameter to: console=ttyB0

config SERIAL_SUNSAB
        tristate "Sun Siemens SAB82532 serial support"
        depends on SPARC && PCI
        help
          This driver supports the Siemens SAB82532 DUSCC serial ports on newer
          (PCI) UltraSPARC systems.  Say Y or M if you want to be able to these
          serial ports.

config SERIAL_SUNSAB_CONSOLE
        bool "Console on Sun Siemens SAB82532 serial port"
        depends on SERIAL_SUNSAB=y
        help
          If you would like to be able to use the SAB82532 serial port
          on your Sparc system as the console, you can do so by answering
          Y to this option.

config SERIAL_SUNHV
        bool "Sun4v Hypervisor Console support"
        depends on SPARC64
        help
          This driver supports the console device found on SUN4V Sparc
          systems.  Say Y if you want to be able to use this device.

config SERIAL_IP22_ZILOG
        tristate "IP22 Zilog8530 serial support"
        depends on SGI_IP22
        select SERIAL_CORE
        help
          This driver supports the Zilog8530 serial ports found on SGI IP22
          systems.  Say Y or M if you want to be able to these serial ports.

config SERIAL_IP22_ZILOG_CONSOLE
        bool "Console on IP22 Zilog8530 serial port"
        depends on SERIAL_IP22_ZILOG=y
        select SERIAL_CORE_CONSOLE

config V850E_UART
        bool "NEC V850E on-chip UART support"
        depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1
        select SERIAL_CORE
        default y

config V850E_UARTB
        bool
        depends on V850E_UART && V850E_ME2
        default y

config V850E_UART_CONSOLE
        bool "Use NEC V850E on-chip UART for console"
        depends on V850E_UART
        select SERIAL_CORE_CONSOLE

config SERIAL_SH_SCI
        tristate "SuperH SCI(F) serial port support"
        depends on SUPERH || H8300
        select SERIAL_CORE

config SERIAL_SH_SCI_NR_UARTS
        int "Maximum number of SCI(F) serial ports"
        depends on SERIAL_SH_SCI
        default "2"

config SERIAL_SH_SCI_CONSOLE
        bool "Support for console on SuperH SCI(F)"
        depends on SERIAL_SH_SCI=y
        select SERIAL_CORE_CONSOLE

config SERIAL_PNX8XXX
        bool "Enable PNX8XXX SoCs' UART Support"
        depends on MIPS && SOC_PNX8550
        select SERIAL_CORE
        help
          If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
          and you want to use serial ports, say Y.  Otherwise, say N.

config SERIAL_PNX8XXX_CONSOLE
        bool "Enable PNX8XX0 serial console"
        depends on SERIAL_PNX8XXX
        select SERIAL_CORE_CONSOLE
        help
          If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
          and you want to use serial console, say Y. Otherwise, say N.

config SERIAL_CORE
        tristate

config SERIAL_CORE_CONSOLE
        bool

config SERIAL_68328
        bool "68328 serial support"
        depends on M68328 || M68EZ328 || M68VZ328
        help
          This driver supports the built-in serial port of the Motorola 68328
          (standard, EZ and VZ varieties).

config SERIAL_68328_RTS_CTS
        bool "Support RTS/CTS on 68328 serial port"
        depends on SERIAL_68328

config SERIAL_COLDFIRE
        bool "ColdFire serial support"
        depends on COLDFIRE
        help
          This driver supports the built-in serial ports of the Motorola ColdFire
          family of CPUs.

config SERIAL_68360_SMC
        bool "68360 SMC uart support"
        depends on M68360
        help
          This driver supports the SMC serial ports of the Motorola 68360 CPU.

config SERIAL_68360_SCC
        bool "68360 SCC uart support"
        depends on M68360
        help
          This driver supports the SCC serial ports of the Motorola 68360 CPU.

config SERIAL_68360
        bool
        depends on SERIAL_68360_SMC || SERIAL_68360_SCC
        default y

config SERIAL_PMACZILOG
        tristate "PowerMac z85c30 ESCC support"
        depends on PPC_OF && PPC_PMAC
        select SERIAL_CORE
        help
          This driver supports the Zilog z85C30 serial ports found on
          PowerMac machines.
          Say Y or M if you want to be able to these serial ports.

config SERIAL_PMACZILOG_TTYS
        bool "Use ttySn device nodes for Zilog z85c30"
        depends on SERIAL_PMACZILOG
        help
          The pmac_zilog driver for the z85C30 chip on many powermacs
          historically used the device numbers for /dev/ttySn.  The
          8250 serial port driver also uses these numbers, which means
          the two drivers being unable to coexist; you could not use
          both z85C30 and 8250 type ports at the same time.

          If this option is not selected, the pmac_zilog driver will
          use the device numbers allocated for /dev/ttyPZn.  This allows
          the pmac_zilog and 8250 drivers to co-exist, but may cause
          existing userspace setups to break.  Programs that need to
          access the built-in serial ports on powermacs will need to
          be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.

          If you enable this option, any z85c30 ports in the system will
          be registered as ttyS0 onwards as in the past, and you will be
          unable to use the 8250 module for PCMCIA or other 16C550-style
          UARTs.

          Say N unless you need the z85c30 ports on your powermac
          to appear as /dev/ttySn.

config SERIAL_PMACZILOG_CONSOLE
        bool "Console on PowerMac z85c30 serial port"
        depends on SERIAL_PMACZILOG=y
        select SERIAL_CORE_CONSOLE
        help
          If you would like to be able to use the z85c30 serial port
          on your PowerMac as the console, you can do so by answering
          Y to this option.

config SERIAL_LH7A40X
        tristate "Sharp LH7A40X embedded UART support"
        depends on ARM && ARCH_LH7A40X
        select SERIAL_CORE
        help
          This enables support for the three on-board UARTs of the
          Sharp LH7A40X series CPUs.  Choose Y or M.

config SERIAL_LH7A40X_CONSOLE
        bool "Support for console on Sharp LH7A40X serial port"
        depends on SERIAL_LH7A40X=y
        select SERIAL_CORE_CONSOLE
        help
          Say Y here if you wish to use one of the serial ports as the
          system console--the system console is the device which
          receives all kernel messages and warnings and which allows
          logins in single user mode.

          Even if you say Y here, the currently visible framebuffer console
          (/dev/tty0) will still be used as the default system console, but
          you can alter that using a kernel command line, for example
          "console=ttyAM1".

config SERIAL_CPM
        tristate "CPM SCC/SMC serial port support"
        depends on CPM2 || 8xx
        select SERIAL_CORE
        help
          This driver supports the SCC and SMC serial ports on Motorola 
          embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)

config SERIAL_CPM_CONSOLE
        bool "Support for console on CPM SCC/SMC serial port"
        depends on SERIAL_CPM=y
        select SERIAL_CORE_CONSOLE
        help
          Say Y here if you wish to use a SCC or SMC CPM UART as the system
          console (the system console is the device which receives all kernel
          messages and warnings and which allows logins in single user mode).

          Even if you say Y here, the currently visible framebuffer console
          (/dev/tty0) will still be used as the system console by default, but
          you can alter that using a kernel command line option such as
          "console=ttyCPM0". (Try "man bootparam" or see the documentation of
          your boot loader (lilo or loadlin) about how to pass options to the
          kernel at boot time.)

config SERIAL_CPM_SCC1
        bool "Support for SCC1 serial port"
        depends on SERIAL_CPM=y
        help
          Select this option to use SCC1 as a serial port

config SERIAL_CPM_SCC2
        bool "Support for SCC2 serial port"
        depends on SERIAL_CPM=y
        help
          Select this option to use SCC2 as a serial port

config SERIAL_CPM_SCC3
        bool "Support for SCC3 serial port"
        depends on SERIAL_CPM=y
        help
          Select this option to use SCC3 as a serial port

config SERIAL_CPM_SCC4
        bool "Support for SCC4 serial port"
        depends on SERIAL_CPM=y
        help
          Select this option to use SCC4 as a serial port

config SERIAL_CPM_SMC1
        bool "Support for SMC1 serial port"
        depends on SERIAL_CPM=y
        help
          Select this option to use SMC1 as a serial port

config SERIAL_CPM_SMC2
        bool "Support for SMC2 serial port"
        depends on SERIAL_CPM=y
        help
          Select this option to use SMC2 as a serial port

config SERIAL_SGI_L1_CONSOLE
        bool "SGI Altix L1 serial console support"
        depends on IA64_GENERIC || IA64_SGI_SN2
        select SERIAL_CORE
        select SERIAL_CORE_CONSOLE
        help
                If you have an SGI Altix and you would like to use the system
                controller serial port as your console (you want this!),
                say Y.  Otherwise, say N.

config SERIAL_MPC52xx
        tristate "Freescale MPC52xx family PSC serial support"
        depends on PPC_MPC52xx
        select SERIAL_CORE
        help
          This drivers support the MPC52xx PSC serial ports. If you would
          like to use them, you must answer Y or M to this option. Not that
          for use as console, it must be included in kernel and not as a
          module.

config SERIAL_MPC52xx_CONSOLE
        bool "Console on a Freescale MPC52xx family PSC serial port"
        depends on SERIAL_MPC52xx=y
        select SERIAL_CORE_CONSOLE
        help
          Select this options if you'd like to use one of the PSC serial port
          of the Freescale MPC52xx family as a console.

config SERIAL_MPC52xx_CONSOLE_BAUD
        int "Freescale MPC52xx family PSC serial port baud"
        depends on SERIAL_MPC52xx_CONSOLE=y
        default "9600"
        help
          Select the MPC52xx console baud rate.
          This value is only used if the bootloader doesn't pass in the
          console baudrate

config SERIAL_ICOM
        tristate "IBM Multiport Serial Adapter"
        depends on PCI && (PPC_ISERIES || PPC_PSERIES)
        select SERIAL_CORE
        select FW_LOADER
        help
          This driver is for a family of multiport serial adapters
          including 2 port RVX, 2 port internal modem, 4 port internal
          modem and a split 1 port RVX and 1 port internal modem.

          This driver can also be built as a module.  If so, the module
          will be called icom.

config SERIAL_M32R_SIO
        bool "M32R SIO I/F"
        depends on M32R
        default y
        select SERIAL_CORE
        help
          Say Y here if you want to use the M32R serial controller.

config SERIAL_M32R_SIO_CONSOLE
        bool "use SIO console"
        depends on SERIAL_M32R_SIO=y
        select SERIAL_CORE_CONSOLE
        help
          Say Y here if you want to support a serial console.

          If you use an M3T-M32700UT or an OPSPUT platform,
          please say also y for SERIAL_M32R_PLDSIO.

config SERIAL_M32R_PLDSIO
        bool "M32R SIO I/F on a PLD"
        depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
        default n
        help
          Say Y here if you want to use the M32R serial controller
          on a PLD (Programmable Logic Device).

          If you use an M3T-M32700UT or an OPSPUT platform,
          please say Y.

config SERIAL_TXX9
        bool "TMPTX39XX/49XX SIO support"
        depends on HAS_TXX9_SERIAL
        select SERIAL_CORE
        default y

config HAS_TXX9_SERIAL
        bool

config SERIAL_TXX9_NR_UARTS
        int "Maximum number of TMPTX39XX/49XX SIO ports"
        depends on SERIAL_TXX9
        default "6"

config SERIAL_TXX9_CONSOLE
        bool "TMPTX39XX/49XX SIO Console support"
        depends on SERIAL_TXX9=y
        select SERIAL_CORE_CONSOLE

config SERIAL_TXX9_STDSERIAL
        bool "TX39XX/49XX SIO act as standard serial"
        depends on !SERIAL_8250 && SERIAL_TXX9

config SERIAL_VR41XX
        tristate "NEC VR4100 series Serial Interface Unit support"
        depends on CPU_VR41XX
        select SERIAL_CORE
        help
          If you have a NEC VR4100 series processor and you want to use
          Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
          (not include VR4111/VR4121 DSIU), say Y.  Otherwise, say N.

config SERIAL_VR41XX_CONSOLE
        bool "Enable NEC VR4100 series Serial Interface Unit console"
        depends on SERIAL_VR41XX=y
        select SERIAL_CORE_CONSOLE
        help
          If you have a NEC VR4100 series processor and you want to use
          a console on a serial port, say Y.  Otherwise, say N.

config SERIAL_JSM
        tristate "Digi International NEO PCI Support"
        depends on PCI
        select SERIAL_CORE
        help
          This is a driver for Digi International's Neo series
          of cards which provide multiple serial ports. You would need
          something like this to connect more than two modems to your Linux
          box, for instance in order to become a dial-in server. This driver
          supports PCI boards only.

          If you have a card like this, say Y here, otherwise say N.

          To compile this driver as a module, choose M here: the
          module will be called jsm.

config SERIAL_SGI_IOC4
        tristate "SGI IOC4 controller serial support"
        depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
        select SERIAL_CORE
        help
                If you have an SGI Altix with an IOC4 based Base IO card
                and wish to use the serial ports on this card, say Y.
                Otherwise, say N.

config SERIAL_SGI_IOC3
        tristate "SGI Altix IOC3 serial support"
        depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
        select SERIAL_CORE
        help
          If you have an SGI Altix with an IOC3 serial card,
          say Y or M.  Otherwise, say N.

config SERIAL_NETX
        bool "NetX serial port support"
        depends on ARM && ARCH_NETX
        select SERIAL_CORE
        help
          If you have a machine based on a Hilscher NetX SoC you
          can enable its onboard serial port by enabling this option.

          To compile this driver as a module, choose M here: the
          module will be called netx-serial.

config SERIAL_NETX_CONSOLE
        bool "Console on NetX serial port"
        depends on SERIAL_NETX
        select SERIAL_CORE_CONSOLE
        help
          If you have enabled the serial port on the Motorola IMX
          CPU you can make it the console by answering Y to this option.

config SERIAL_OF_PLATFORM
        tristate "Serial port on Open Firmware platform bus"
        depends on PPC_OF
        depends on SERIAL_8250
        help
          If you have a PowerPC based system that has serial ports
          on a platform specific bus, you should enable this option.
          Currently, only 8250 compatible ports are supported, but
          others can easily be added.

endmenu