linux/drivers/tty/serial/Kconfig
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   1#
   2# Serial device configuration
   3#
   4
   5if TTY
   6
   7menu "Serial drivers"
   8        depends on HAS_IOMEM
   9
  10config SERIAL_EARLYCON
  11        bool
  12        help
  13          Support for early consoles with the earlycon parameter. This enables
  14          the console before standard serial driver is probed. The console is
  15          enabled when early_param is processed.
  16
  17source "drivers/tty/serial/8250/Kconfig"
  18
  19comment "Non-8250 serial port support"
  20
  21config SERIAL_AMBA_PL010
  22        tristate "ARM AMBA PL010 serial port support"
  23        depends on ARM_AMBA
  24        select SERIAL_CORE
  25        help
  26          This selects the ARM(R) AMBA(R) PrimeCell PL010 UART.  If you have
  27          an Integrator/AP or Integrator/PP2 platform, or if you have a
  28          Cirrus Logic EP93xx CPU, say Y or M here.
  29
  30          If unsure, say N.
  31
  32config SERIAL_AMBA_PL010_CONSOLE
  33        bool "Support for console on AMBA serial port"
  34        depends on SERIAL_AMBA_PL010=y
  35        select SERIAL_CORE_CONSOLE
  36        ---help---
  37          Say Y here if you wish to use an AMBA PrimeCell UART as the system
  38          console (the system console is the device which receives all kernel
  39          messages and warnings and which allows logins in single user mode).
  40
  41          Even if you say Y here, the currently visible framebuffer console
  42          (/dev/tty0) will still be used as the system console by default, but
  43          you can alter that using a kernel command line option such as
  44          "console=ttyAM0". (Try "man bootparam" or see the documentation of
  45          your boot loader (lilo or loadlin) about how to pass options to the
  46          kernel at boot time.)
  47
  48config SERIAL_AMBA_PL011
  49        tristate "ARM AMBA PL011 serial port support"
  50        depends on ARM_AMBA
  51        select SERIAL_CORE
  52        help
  53          This selects the ARM(R) AMBA(R) PrimeCell PL011 UART.  If you have
  54          an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
  55          here.
  56
  57          If unsure, say N.
  58
  59config SERIAL_AMBA_PL011_CONSOLE
  60        bool "Support for console on AMBA serial port"
  61        depends on SERIAL_AMBA_PL011=y
  62        select SERIAL_CORE_CONSOLE
  63        select SERIAL_EARLYCON
  64        ---help---
  65          Say Y here if you wish to use an AMBA PrimeCell UART as the system
  66          console (the system console is the device which receives all kernel
  67          messages and warnings and which allows logins in single user mode).
  68
  69          Even if you say Y here, the currently visible framebuffer console
  70          (/dev/tty0) will still be used as the system console by default, but
  71          you can alter that using a kernel command line option such as
  72          "console=ttyAMA0". (Try "man bootparam" or see the documentation of
  73          your boot loader (lilo or loadlin) about how to pass options to the
  74          kernel at boot time.)
  75
  76config SERIAL_EARLYCON_ARM_SEMIHOST
  77        bool "Early console using ARM semihosting"
  78        depends on ARM64 || ARM
  79        select SERIAL_CORE
  80        select SERIAL_CORE_CONSOLE
  81        select SERIAL_EARLYCON
  82        help
  83          Support for early debug console using ARM semihosting. This enables
  84          the console before standard serial driver is probed. This is enabled
  85          with "earlycon=smh" on the kernel command line. The console is
  86          enabled when early_param is processed.
  87
  88config SERIAL_SB1250_DUART
  89        tristate "BCM1xxx on-chip DUART serial support"
  90        depends on SIBYTE_SB1xxx_SOC=y
  91        select SERIAL_CORE
  92        default y
  93        ---help---
  94          Support for the asynchronous serial interface (DUART) included in
  95          the BCM1250 and derived System-On-a-Chip (SOC) devices.  Note that
  96          the letter D in DUART stands for "dual", which is how the device
  97          is implemented.  Depending on the SOC configuration there may be
  98          one or more DUARTs available of which all are handled.
  99
 100          If unsure, say Y.  To compile this driver as a module, choose M here:
 101          the module will be called sb1250-duart.
 102
 103config SERIAL_SB1250_DUART_CONSOLE
 104        bool "Support for console on a BCM1xxx DUART serial port"
 105        depends on SERIAL_SB1250_DUART=y
 106        select SERIAL_CORE_CONSOLE
 107        default y
 108        ---help---
 109          If you say Y here, it will be possible to use a serial port as the
 110          system console (the system console is the device which receives all
 111          kernel messages and warnings and which allows logins in single user
 112          mode).
 113
 114          If unsure, say Y.
 115
 116config SERIAL_ATMEL
 117        bool "AT91 on-chip serial port support"
 118        depends on HAS_DMA
 119        depends on ARCH_AT91 || COMPILE_TEST
 120        select SERIAL_CORE
 121        select SERIAL_MCTRL_GPIO if GPIOLIB
 122        help
 123          This enables the driver for the on-chip UARTs of the Atmel
 124          AT91 processors.
 125
 126config SERIAL_ATMEL_CONSOLE
 127        bool "Support for console on AT91 serial port"
 128        depends on SERIAL_ATMEL=y
 129        select SERIAL_CORE_CONSOLE
 130        help
 131          Say Y here if you wish to use an on-chip UART on a Atmel
 132          AT91 processor as the system console (the system
 133          console is the device which receives all kernel messages and
 134          warnings and which allows logins in single user mode).
 135
 136config SERIAL_ATMEL_PDC
 137        bool "Support DMA transfers on AT91 serial port"
 138        depends on SERIAL_ATMEL
 139        default y
 140        help
 141          Say Y here if you wish to use the PDC to do DMA transfers to
 142          and from the Atmel AT91 serial port. In order to
 143          actually use DMA transfers, make sure that the use_dma_tx
 144          and use_dma_rx members in the atmel_uart_data struct is set
 145          appropriately for each port.
 146
 147          Note that break and error handling currently doesn't work
 148          properly when DMA is enabled. Make sure that ports where
 149          this matters don't use DMA.
 150
 151config SERIAL_ATMEL_TTYAT
 152        bool "Install as device ttyATn instead of ttySn"
 153        depends on SERIAL_ATMEL=y
 154        help
 155          Say Y here if you wish to have the internal AT91 UARTs
 156          appear as /dev/ttyATn (major 204, minor starting at 154)
 157          instead of the normal /dev/ttySn (major 4, minor starting at
 158          64). This is necessary if you also want other UARTs, such as
 159          external 8250/16C550 compatible UARTs.
 160          The ttySn nodes are legally reserved for the 8250 serial driver
 161          but are often misused by other serial drivers.
 162
 163          To use this, you should create suitable ttyATn device nodes in
 164          /dev/, and pass "console=ttyATn" to the kernel.
 165
 166          Say Y if you have an external 8250/16C550 UART.  If unsure, say N.
 167
 168config SERIAL_KGDB_NMI
 169        bool "Serial console over KGDB NMI debugger port"
 170        depends on KGDB_SERIAL_CONSOLE
 171        help
 172          This special driver allows you to temporary use NMI debugger port
 173          as a normal console (assuming that the port is attached to KGDB).
 174
 175          Unlike KDB's disable_nmi command, with this driver you are always
 176          able to go back to the debugger using KGDB escape sequence ($3#33).
 177          This is because this console driver processes the input in NMI
 178          context, and thus is able to intercept the magic sequence.
 179
 180          Note that since the console interprets input and uses polling
 181          communication methods, for things like PPP you still must fully
 182          detach debugger port from the KGDB NMI (i.e. disable_nmi), and
 183          use raw console.
 184
 185          If unsure, say N.
 186
 187config SERIAL_KS8695
 188        bool "Micrel KS8695 (Centaur) serial port support"
 189        depends on ARCH_KS8695
 190        select SERIAL_CORE
 191        help
 192          This selects the Micrel Centaur KS8695 UART.  Say Y here.
 193
 194config SERIAL_KS8695_CONSOLE
 195        bool "Support for console on KS8695 (Centaur) serial port"
 196        depends on SERIAL_KS8695=y
 197        select SERIAL_CORE_CONSOLE
 198        help
 199          Say Y here if you wish to use a KS8695 (Centaur) UART as the
 200          system console (the system console is the device which
 201          receives all kernel messages and warnings and which allows
 202          logins in single user mode).
 203
 204config SERIAL_MESON
 205        tristate "Meson serial port support"
 206        depends on ARCH_MESON
 207        select SERIAL_CORE
 208        help
 209          This enables the driver for the on-chip UARTs of the Amlogic
 210          MesonX processors.
 211
 212config SERIAL_MESON_CONSOLE
 213        bool "Support for console on meson"
 214        depends on SERIAL_MESON=y
 215        select SERIAL_CORE_CONSOLE
 216        select SERIAL_EARLYCON
 217        help
 218          Say Y here if you wish to use a Amlogic MesonX UART as the
 219          system console (the system console is the device which
 220          receives all kernel messages and warnings and which allows
 221          logins in single user mode) as /dev/ttyAMLx.
 222
 223config SERIAL_CLPS711X
 224        tristate "CLPS711X serial port support"
 225        depends on ARCH_CLPS711X || COMPILE_TEST
 226        select SERIAL_CORE
 227        select SERIAL_MCTRL_GPIO if GPIOLIB
 228        help
 229          This enables the driver for the on-chip UARTs of the Cirrus
 230          Logic EP711x/EP721x/EP731x processors.
 231
 232config SERIAL_CLPS711X_CONSOLE
 233        bool "Support for console on CLPS711X serial port"
 234        depends on SERIAL_CLPS711X=y
 235        select SERIAL_CORE_CONSOLE
 236        help
 237          Even if you say Y here, the currently visible virtual console
 238          (/dev/tty0) will still be used as the system console by default, but
 239          you can alter that using a kernel command line option such as
 240          "console=ttyCL1".
 241
 242config SERIAL_SAMSUNG
 243        tristate "Samsung SoC serial support"
 244        depends on PLAT_SAMSUNG || ARCH_EXYNOS
 245        select SERIAL_CORE
 246        help
 247          Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
 248          providing /dev/ttySAC0, 1 and 2 (note, some machines may not
 249          provide all of these ports, depending on how the serial port
 250          pins are configured.
 251
 252config SERIAL_SAMSUNG_UARTS_4
 253        bool
 254        depends on SERIAL_SAMSUNG
 255        default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
 256        help
 257          Internal node for the common case of 4 Samsung compatible UARTs
 258
 259config SERIAL_SAMSUNG_UARTS
 260        int
 261        depends on SERIAL_SAMSUNG
 262        default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
 263        default 3
 264        help
 265          Select the number of available UART ports for the Samsung S3C
 266          serial driver
 267        
 268config SERIAL_SAMSUNG_DEBUG
 269        bool "Samsung SoC serial debug"
 270        depends on SERIAL_SAMSUNG && DEBUG_LL
 271        help
 272          Add support for debugging the serial driver. Since this is
 273          generally being used as a console, we use our own output
 274          routines that go via the low-level debug printascii()
 275          function.
 276
 277config SERIAL_SAMSUNG_CONSOLE
 278        bool "Support for console on Samsung SoC serial port"
 279        depends on SERIAL_SAMSUNG=y
 280        select SERIAL_CORE_CONSOLE
 281        select SERIAL_EARLYCON
 282        help
 283          Allow selection of the S3C24XX on-board serial ports for use as
 284          an virtual console.
 285
 286          Even if you say Y here, the currently visible virtual console
 287          (/dev/tty0) will still be used as the system console by default, but
 288          you can alter that using a kernel command line option such as
 289          "console=ttySACx". (Try "man bootparam" or see the documentation of
 290          your boot loader about how to pass options to the kernel at
 291          boot time.)
 292
 293config SERIAL_SIRFSOC
 294        tristate "SiRF SoC Platform Serial port support"
 295        depends on ARCH_SIRF
 296        select SERIAL_CORE
 297        help
 298          Support for the on-chip UART on the CSR SiRFprimaII series,
 299          providing /dev/ttySiRF0, 1 and 2 (note, some machines may not
 300          provide all of these ports, depending on how the serial port
 301          pins are configured).
 302
 303config SERIAL_SIRFSOC_CONSOLE
 304        bool "Support for console on SiRF SoC serial port"
 305        depends on SERIAL_SIRFSOC=y
 306        select SERIAL_CORE_CONSOLE
 307        help
 308          Even if you say Y here, the currently visible virtual console
 309          (/dev/tty0) will still be used as the system console by default, but
 310          you can alter that using a kernel command line option such as
 311          "console=ttySiRFx". (Try "man bootparam" or see the documentation of
 312          your boot loader about how to pass options to the kernel at
 313          boot time.)
 314
 315config SERIAL_TEGRA
 316        tristate "NVIDIA Tegra20/30 SoC serial controller"
 317        depends on ARCH_TEGRA && TEGRA20_APB_DMA
 318        select SERIAL_CORE
 319        help
 320          Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
 321          providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not
 322          provide all of these ports, depending on how the serial port
 323          are enabled). This driver uses the APB DMA to achieve higher baudrate
 324          and better performance.
 325
 326config SERIAL_MAX3100
 327        tristate "MAX3100 support"
 328        depends on SPI
 329        select SERIAL_CORE
 330        help
 331          MAX3100 chip support
 332
 333config SERIAL_MAX310X
 334        tristate "MAX310X support"
 335        depends on SPI_MASTER
 336        select SERIAL_CORE
 337        select REGMAP_SPI if SPI_MASTER
 338        default n
 339        help
 340          This selects support for an advanced UART from Maxim (Dallas).
 341          Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830.
 342          Each IC contains 128 words each of receive and transmit FIFO
 343          that can be controlled through I2C or high-speed SPI.
 344
 345          Say Y here if you want to support this ICs.
 346
 347config SERIAL_DZ
 348        bool "DECstation DZ serial driver"
 349        depends on MACH_DECSTATION && 32BIT
 350        select SERIAL_CORE
 351        default y
 352        ---help---
 353          DZ11-family serial controllers for DECstations and VAXstations,
 354          including the DC7085, M7814, and M7819.
 355
 356config SERIAL_DZ_CONSOLE
 357        bool "Support console on DECstation DZ serial driver"
 358        depends on SERIAL_DZ=y
 359        select SERIAL_CORE_CONSOLE
 360        default y
 361        ---help---
 362          If you say Y here, it will be possible to use a serial port as the
 363          system console (the system console is the device which receives all
 364          kernel messages and warnings and which allows logins in single user
 365          mode).
 366
 367          Note that the firmware uses ttyS3 as the serial console on
 368          DECstations that use this driver.
 369
 370          If unsure, say Y.
 371
 372config SERIAL_ZS
 373        tristate "DECstation Z85C30 serial support"
 374        depends on MACH_DECSTATION
 375        select SERIAL_CORE
 376        default y
 377        ---help---
 378          Support for the Zilog 85C350 serial communications controller used
 379          for serial ports in newer DECstation systems.  These include the
 380          DECsystem 5900 and all models of the DECstation and DECsystem 5000
 381          systems except from model 200.
 382
 383          If unsure, say Y.  To compile this driver as a module, choose M here:
 384          the module will be called zs.
 385
 386config SERIAL_ZS_CONSOLE
 387        bool "Support for console on a DECstation Z85C30 serial port"
 388        depends on SERIAL_ZS=y
 389        select SERIAL_CORE_CONSOLE
 390        default y
 391        ---help---
 392          If you say Y here, it will be possible to use a serial port as the
 393          system console (the system console is the device which receives all
 394          kernel messages and warnings and which allows logins in single user
 395          mode).
 396
 397          Note that the firmware uses ttyS1 as the serial console on the
 398          Maxine and ttyS3 on the others using this driver.
 399
 400          If unsure, say Y.
 401
 402config SERIAL_21285
 403        tristate "DC21285 serial port support"
 404        depends on FOOTBRIDGE
 405        select SERIAL_CORE
 406        help
 407          If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
 408          PCI bridge you can enable its onboard serial port by enabling this
 409          option.
 410
 411config SERIAL_21285_CONSOLE
 412        bool "Console on DC21285 serial port"
 413        depends on SERIAL_21285=y
 414        select SERIAL_CORE_CONSOLE
 415        help
 416          If you have enabled the serial port on the 21285 footbridge you can
 417          make it the console by answering Y to this option.
 418
 419          Even if you say Y here, the currently visible virtual console
 420          (/dev/tty0) will still be used as the system console by default, but
 421          you can alter that using a kernel command line option such as
 422          "console=ttyFB". (Try "man bootparam" or see the documentation of
 423          your boot loader (lilo or loadlin) about how to pass options to the
 424          kernel at boot time.)
 425
 426config SERIAL_MPSC
 427        bool "Marvell MPSC serial port support"
 428        depends on MV64X60
 429        select SERIAL_CORE
 430        help
 431          Say Y here if you want to use the Marvell MPSC serial controller.
 432
 433config SERIAL_MPSC_CONSOLE
 434        bool "Support for console on Marvell MPSC serial port"
 435        depends on SERIAL_MPSC
 436        select SERIAL_CORE_CONSOLE
 437        help
 438          Say Y here if you want to support a serial console on a Marvell MPSC.
 439
 440config SERIAL_PXA
 441        bool "PXA serial port support (DEPRECATED)"
 442        depends on ARCH_PXA || ARCH_MMP
 443        select SERIAL_CORE
 444        select SERIAL_8250_PXA if SERIAL_8250=y
 445        select SERIAL_PXA_NON8250 if !SERIAL_8250=y
 446        help
 447          If you have a machine based on an Intel XScale PXA2xx CPU you
 448          can enable its onboard serial ports by enabling this option.
 449
 450          Unless you have a specific need, you should use SERIAL_8250_PXA
 451          instead of this.
 452
 453config SERIAL_PXA_NON8250
 454        bool
 455        depends on !SERIAL_8250
 456
 457config SERIAL_PXA_CONSOLE
 458        bool "Console on PXA serial port (DEPRECATED)"
 459        depends on SERIAL_PXA
 460        select SERIAL_CORE_CONSOLE
 461        select SERIAL_8250_CONSOLE if SERIAL_8250=y
 462        help
 463          If you have enabled the serial port on the Intel XScale PXA
 464          CPU you can make it the console by answering Y to this option.
 465
 466          Even if you say Y here, the currently visible virtual console
 467          (/dev/tty0) will still be used as the system console by default, but
 468          you can alter that using a kernel command line option such as
 469          "console=ttySA0". (Try "man bootparam" or see the documentation of
 470          your boot loader (lilo or loadlin) about how to pass options to the
 471          kernel at boot time.)
 472
 473          Unless you have a specific need, you should use SERIAL_8250_PXA
 474          and SERIAL_8250_CONSOLE instead of this.
 475
 476config SERIAL_SA1100
 477        bool "SA1100 serial port support"
 478        depends on ARCH_SA1100
 479        select SERIAL_CORE
 480        help
 481          If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
 482          can enable its onboard serial port by enabling this option.
 483          Please read <file:Documentation/arm/SA1100/serial_UART> for further
 484          info.
 485
 486config SERIAL_SA1100_CONSOLE
 487        bool "Console on SA1100 serial port"
 488        depends on SERIAL_SA1100
 489        select SERIAL_CORE_CONSOLE
 490        help
 491          If you have enabled the serial port on the SA1100/SA1110 StrongARM
 492          CPU you can make it the console by answering Y to this option.
 493
 494          Even if you say Y here, the currently visible virtual console
 495          (/dev/tty0) will still be used as the system console by default, but
 496          you can alter that using a kernel command line option such as
 497          "console=ttySA0". (Try "man bootparam" or see the documentation of
 498          your boot loader (lilo or loadlin) about how to pass options to the
 499          kernel at boot time.)
 500
 501config SERIAL_BFIN
 502        tristate "Blackfin serial port support"
 503        depends on BLACKFIN
 504        select SERIAL_CORE
 505        select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
 506        help
 507          Add support for the built-in UARTs on the Blackfin.
 508
 509          To compile this driver as a module, choose M here: the
 510          module is named bfin_uart.ko.
 511
 512config SERIAL_BFIN_CONSOLE
 513        bool "Console on Blackfin serial port"
 514        depends on SERIAL_BFIN=y
 515        select SERIAL_CORE_CONSOLE
 516
 517choice
 518        prompt "UART Mode"
 519        depends on SERIAL_BFIN
 520        default SERIAL_BFIN_DMA
 521        help
 522          This driver supports the built-in serial ports of the Blackfin family
 523          of CPUs
 524
 525config SERIAL_BFIN_DMA
 526        bool "DMA mode"
 527        depends on !DMA_UNCACHED_NONE && KGDB_SERIAL_CONSOLE=n
 528        help
 529          This driver works under DMA mode. If this option is selected, the
 530          blackfin simple dma driver is also enabled.
 531
 532config SERIAL_BFIN_PIO
 533        bool "PIO mode"
 534        help
 535          This driver works under PIO mode.
 536
 537endchoice
 538
 539config SERIAL_BFIN_UART0
 540        bool "Enable UART0"
 541        depends on SERIAL_BFIN
 542        help
 543          Enable UART0
 544
 545config BFIN_UART0_CTSRTS
 546        bool "Enable UART0 hardware flow control"
 547        depends on SERIAL_BFIN_UART0
 548        help
 549          Enable hardware flow control in the driver.
 550
 551config SERIAL_BFIN_UART1
 552        bool "Enable UART1"
 553        depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
 554        help
 555          Enable UART1
 556
 557config BFIN_UART1_CTSRTS
 558        bool "Enable UART1 hardware flow control"
 559        depends on SERIAL_BFIN_UART1
 560        help
 561          Enable hardware flow control in the driver.
 562
 563config SERIAL_BFIN_UART2
 564        bool "Enable UART2"
 565        depends on SERIAL_BFIN && (BF54x || BF538 || BF539)
 566        help
 567          Enable UART2
 568
 569config BFIN_UART2_CTSRTS
 570        bool "Enable UART2 hardware flow control"
 571        depends on SERIAL_BFIN_UART2
 572        help
 573          Enable hardware flow control in the driver.
 574
 575config SERIAL_BFIN_UART3
 576        bool "Enable UART3"
 577        depends on SERIAL_BFIN && (BF54x)
 578        help
 579          Enable UART3
 580
 581config BFIN_UART3_CTSRTS
 582        bool "Enable UART3 hardware flow control"
 583        depends on SERIAL_BFIN_UART3
 584        help
 585          Enable hardware flow control in the driver.
 586
 587config SERIAL_IMX
 588        tristate "IMX serial port support"
 589        depends on HAS_DMA
 590        depends on ARCH_MXC || COMPILE_TEST
 591        select SERIAL_CORE
 592        select RATIONAL
 593        select SERIAL_MCTRL_GPIO if GPIOLIB
 594        help
 595          If you have a machine based on a Motorola IMX CPU you
 596          can enable its onboard serial port by enabling this option.
 597
 598config SERIAL_IMX_CONSOLE
 599        bool "Console on IMX serial port"
 600        depends on SERIAL_IMX=y
 601        select SERIAL_CORE_CONSOLE
 602        select SERIAL_EARLYCON if OF
 603        help
 604          If you have enabled the serial port on the Freescale IMX
 605          CPU you can make it the console by answering Y to this option.
 606
 607          Even if you say Y here, the currently visible virtual console
 608          (/dev/tty0) will still be used as the system console by default, but
 609          you can alter that using a kernel command line option such as
 610          "console=ttymxc0". (Try "man bootparam" or see the documentation of
 611          your bootloader about how to pass options to the kernel at boot time.)
 612
 613config SERIAL_UARTLITE
 614        tristate "Xilinx uartlite serial port support"
 615        depends on HAS_IOMEM
 616        select SERIAL_CORE
 617        help
 618          Say Y here if you want to use the Xilinx uartlite serial controller.
 619
 620          To compile this driver as a module, choose M here: the
 621          module will be called uartlite.
 622
 623config SERIAL_UARTLITE_CONSOLE
 624        bool "Support for console on Xilinx uartlite serial port"
 625        depends on SERIAL_UARTLITE=y
 626        select SERIAL_CORE_CONSOLE
 627        select SERIAL_EARLYCON
 628        help
 629          Say Y here if you wish to use a Xilinx uartlite as the system
 630          console (the system console is the device which receives all kernel
 631          messages and warnings and which allows logins in single user mode).
 632
 633config SERIAL_UARTLITE_NR_UARTS
 634        int "Maximum number of uartlite serial ports"
 635        depends on SERIAL_UARTLITE
 636        range 1 256
 637        default 1
 638        help
 639          Set this to the number of uartlites in your system, or the number
 640          you think you might implement.
 641
 642config SERIAL_SUNCORE
 643        bool
 644        depends on SPARC
 645        select SERIAL_CORE
 646        select SERIAL_CORE_CONSOLE
 647        default y
 648
 649config SERIAL_SUNZILOG
 650        tristate "Sun Zilog8530 serial support"
 651        depends on SPARC
 652        help
 653          This driver supports the Zilog8530 serial ports found on many Sparc
 654          systems.  Say Y or M if you want to be able to these serial ports.
 655
 656config SERIAL_SUNZILOG_CONSOLE
 657        bool "Console on Sun Zilog8530 serial port"
 658        depends on SERIAL_SUNZILOG=y
 659        help
 660          If you would like to be able to use the Zilog8530 serial port
 661          on your Sparc system as the console, you can do so by answering
 662          Y to this option.
 663
 664config SERIAL_SUNSU
 665        tristate "Sun SU serial support"
 666        depends on SPARC && PCI
 667        help
 668          This driver supports the 8250 serial ports that run the keyboard and
 669          mouse on (PCI) UltraSPARC systems.  Say Y or M if you want to be able
 670          to these serial ports.
 671
 672config SERIAL_SUNSU_CONSOLE
 673        bool "Console on Sun SU serial port"
 674        depends on SERIAL_SUNSU=y
 675        help
 676          If you would like to be able to use the SU serial port
 677          on your Sparc system as the console, you can do so by answering
 678          Y to this option.
 679
 680config SERIAL_MUX
 681        tristate "Serial MUX support"
 682        depends on GSC
 683        select SERIAL_CORE
 684        default y
 685        ---help---
 686          Saying Y here will enable the hardware MUX serial driver for
 687          the Nova, K class systems and D class with a 'remote control card'.
 688          The hardware MUX is not 8250/16550 compatible therefore the
 689          /dev/ttyB0 device is shared between the Serial MUX and the PDC
 690          software console. The following steps need to be completed to use
 691          the Serial MUX:
 692
 693            1. create the device entry (mknod /dev/ttyB0 c 11 0)
 694            2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
 695            3. Add device ttyB0 to /etc/securetty (if you want to log on as
 696                 root on this console.)
 697            4. Change the kernel command console parameter to: console=ttyB0
 698
 699config SERIAL_MUX_CONSOLE
 700        bool "Support for console on serial MUX"
 701        depends on SERIAL_MUX=y
 702        select SERIAL_CORE_CONSOLE
 703        default y
 704
 705config PDC_CONSOLE
 706        bool "PDC software console support"
 707        depends on PARISC && !SERIAL_MUX && VT
 708        default n
 709        help
 710          Saying Y here will enable the software based PDC console to be 
 711          used as the system console.  This is useful for machines in 
 712          which the hardware based console has not been written yet.  The
 713          following steps must be completed to use the PDC console:
 714
 715            1. create the device entry (mknod /dev/ttyB0 c 11 0)
 716            2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
 717            3. Add device ttyB0 to /etc/securetty (if you want to log on as
 718                 root on this console.)
 719            4. Change the kernel command console parameter to: console=ttyB0
 720
 721config SERIAL_SUNSAB
 722        tristate "Sun Siemens SAB82532 serial support"
 723        depends on SPARC && PCI
 724        help
 725          This driver supports the Siemens SAB82532 DUSCC serial ports on newer
 726          (PCI) UltraSPARC systems.  Say Y or M if you want to be able to these
 727          serial ports.
 728
 729config SERIAL_SUNSAB_CONSOLE
 730        bool "Console on Sun Siemens SAB82532 serial port"
 731        depends on SERIAL_SUNSAB=y
 732        help
 733          If you would like to be able to use the SAB82532 serial port
 734          on your Sparc system as the console, you can do so by answering
 735          Y to this option.
 736
 737config SERIAL_SUNHV
 738        bool "Sun4v Hypervisor Console support"
 739        depends on SPARC64
 740        help
 741          This driver supports the console device found on SUN4V Sparc
 742          systems.  Say Y if you want to be able to use this device.
 743
 744config SERIAL_IP22_ZILOG
 745        tristate "SGI Zilog8530 serial support"
 746        depends on SGI_HAS_ZILOG
 747        select SERIAL_CORE
 748        help
 749          This driver supports the Zilog8530 serial ports found on SGI
 750          systems.  Say Y or M if you want to be able to these serial ports.
 751
 752config SERIAL_IP22_ZILOG_CONSOLE
 753        bool "Console on SGI Zilog8530 serial port"
 754        depends on SERIAL_IP22_ZILOG=y
 755        select SERIAL_CORE_CONSOLE
 756
 757config SERIAL_SH_SCI
 758        tristate "SuperH SCI(F) serial port support"
 759        depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
 760        select SERIAL_CORE
 761        select SERIAL_MCTRL_GPIO if GPIOLIB
 762
 763config SERIAL_SH_SCI_NR_UARTS
 764        int "Maximum number of SCI(F) serial ports"
 765        depends on SERIAL_SH_SCI
 766        default "2"
 767
 768config SERIAL_SH_SCI_CONSOLE
 769        bool "Support for console on SuperH SCI(F)"
 770        depends on SERIAL_SH_SCI=y
 771        select SERIAL_CORE_CONSOLE
 772
 773config SERIAL_SH_SCI_EARLYCON
 774        bool "Support for early console on SuperH SCI(F)"
 775        depends on SERIAL_SH_SCI=y
 776        select SERIAL_CORE_CONSOLE
 777        select SERIAL_EARLYCON
 778
 779config SERIAL_SH_SCI_DMA
 780        bool "DMA support"
 781        depends on SERIAL_SH_SCI && DMA_ENGINE
 782
 783config SERIAL_PNX8XXX
 784        bool "Enable PNX8XXX SoCs' UART Support"
 785        depends on SOC_PNX833X
 786        select SERIAL_CORE
 787        help
 788          If you have a MIPS-based Philips SoC such as PNX8330 and you want
 789          to use serial ports, say Y.  Otherwise, say N.
 790
 791config SERIAL_PNX8XXX_CONSOLE
 792        bool "Enable PNX8XX0 serial console"
 793        depends on SERIAL_PNX8XXX
 794        select SERIAL_CORE_CONSOLE
 795        help
 796          If you have a MIPS-based Philips SoC such as PNX8330 and you want
 797          to use serial console, say Y. Otherwise, say N.
 798
 799config SERIAL_HS_LPC32XX
 800        tristate "LPC32XX high speed serial port support"
 801        depends on ARCH_LPC32XX && OF
 802        select SERIAL_CORE
 803        help
 804          Support for the LPC32XX high speed serial ports (up to 900kbps).
 805          Those are UARTs completely different from the Standard UARTs on the
 806          LPC32XX SoC.
 807          Choose M or Y here to build this driver.
 808
 809config SERIAL_HS_LPC32XX_CONSOLE
 810        bool "Enable LPC32XX high speed UART serial console"
 811        depends on SERIAL_HS_LPC32XX=y
 812        select SERIAL_CORE_CONSOLE
 813        help
 814          If you would like to be able to use one of the high speed serial
 815          ports on the LPC32XX as the console, you can do so by answering
 816          Y to this option.
 817
 818config SERIAL_CORE
 819        tristate
 820
 821config SERIAL_CORE_CONSOLE
 822        bool
 823
 824config CONSOLE_POLL
 825        bool
 826
 827config SERIAL_MCF
 828        bool "Coldfire serial support"
 829        depends on COLDFIRE
 830        select SERIAL_CORE
 831        help
 832          This serial driver supports the Freescale Coldfire serial ports.
 833
 834config SERIAL_MCF_BAUDRATE
 835        int "Default baudrate for Coldfire serial ports"
 836        depends on SERIAL_MCF
 837        default 19200
 838        help
 839          This setting lets you define what the default baudrate is for the
 840          ColdFire serial ports. The usual default varies from board to board,
 841          and this setting is a way of catering for that.
 842
 843config SERIAL_MCF_CONSOLE
 844        bool "Coldfire serial console support"
 845        depends on SERIAL_MCF
 846        select SERIAL_CORE_CONSOLE
 847        help
 848          Enable a ColdFire internal serial port to be the system console.
 849
 850config SERIAL_PMACZILOG
 851        tristate "Mac or PowerMac z85c30 ESCC support"
 852        depends on (M68K && MAC) || PPC_PMAC
 853        select SERIAL_CORE
 854        help
 855          This driver supports the Zilog z85C30 serial ports found on
 856          (Power)Mac machines.
 857          Say Y or M if you want to be able to these serial ports.
 858
 859config SERIAL_PMACZILOG_TTYS
 860        bool "Use ttySn device nodes for Zilog z85c30"
 861        depends on SERIAL_PMACZILOG
 862        help
 863          The pmac_zilog driver for the z85C30 chip on many powermacs
 864          historically used the device numbers for /dev/ttySn.  The
 865          8250 serial port driver also uses these numbers, which means
 866          the two drivers being unable to coexist; you could not use
 867          both z85C30 and 8250 type ports at the same time.
 868
 869          If this option is not selected, the pmac_zilog driver will
 870          use the device numbers allocated for /dev/ttyPZn.  This allows
 871          the pmac_zilog and 8250 drivers to co-exist, but may cause
 872          existing userspace setups to break.  Programs that need to
 873          access the built-in serial ports on powermacs will need to
 874          be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
 875
 876          If you enable this option, any z85c30 ports in the system will
 877          be registered as ttyS0 onwards as in the past, and you will be
 878          unable to use the 8250 module for PCMCIA or other 16C550-style
 879          UARTs.
 880
 881          Say N unless you need the z85c30 ports on your (Power)Mac
 882          to appear as /dev/ttySn.
 883
 884config SERIAL_PMACZILOG_CONSOLE
 885        bool "Console on Mac or PowerMac z85c30 serial port"
 886        depends on SERIAL_PMACZILOG=y
 887        select SERIAL_CORE_CONSOLE
 888        help
 889          If you would like to be able to use the z85c30 serial port
 890          on your (Power)Mac as the console, you can do so by answering
 891          Y to this option.
 892
 893config SERIAL_CPM
 894        tristate "CPM SCC/SMC serial port support"
 895        depends on CPM2 || CPM1
 896        select SERIAL_CORE
 897        help
 898          This driver supports the SCC and SMC serial ports on Motorola 
 899          embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
 900
 901config SERIAL_CPM_CONSOLE
 902        bool "Support for console on CPM SCC/SMC serial port"
 903        depends on SERIAL_CPM=y
 904        select SERIAL_CORE_CONSOLE
 905        help
 906          Say Y here if you wish to use a SCC or SMC CPM UART as the system
 907          console (the system console is the device which receives all kernel
 908          messages and warnings and which allows logins in single user mode).
 909
 910          Even if you say Y here, the currently visible framebuffer console
 911          (/dev/tty0) will still be used as the system console by default, but
 912          you can alter that using a kernel command line option such as
 913          "console=ttyCPM0". (Try "man bootparam" or see the documentation of
 914          your boot loader (lilo or loadlin) about how to pass options to the
 915          kernel at boot time.)
 916
 917config SERIAL_SGI_L1_CONSOLE
 918        bool "SGI Altix L1 serial console support"
 919        depends on IA64_GENERIC || IA64_SGI_SN2
 920        select SERIAL_CORE
 921        select SERIAL_CORE_CONSOLE
 922        help
 923                If you have an SGI Altix and you would like to use the system
 924                controller serial port as your console (you want this!),
 925                say Y.  Otherwise, say N.
 926
 927config SERIAL_PIC32
 928        tristate "Microchip PIC32 serial support"
 929        depends on MACH_PIC32
 930        select SERIAL_CORE
 931        help
 932          If you have a PIC32, this driver supports the serial ports.
 933
 934          Say Y or M to use PIC32 serial ports, otherwise say N. Note that
 935          to use a serial port as a console, this must be included in kernel and
 936          not as a module.
 937
 938config SERIAL_PIC32_CONSOLE
 939        bool "PIC32 serial console support"
 940        depends on SERIAL_PIC32
 941        select SERIAL_CORE_CONSOLE
 942        help
 943          If you have a PIC32, this driver supports the putting a console on one
 944          of the serial ports.
 945
 946          Say Y to use the PIC32 console, otherwise say N.
 947
 948config SERIAL_MPC52xx
 949        tristate "Freescale MPC52xx/MPC512x family PSC serial support"
 950        depends on PPC_MPC52xx || PPC_MPC512x
 951        select SERIAL_CORE
 952        help
 953          This driver supports MPC52xx and MPC512x PSC serial ports. If you would
 954          like to use them, you must answer Y or M to this option. Note that
 955          for use as console, it must be included in kernel and not as a
 956          module.
 957
 958config SERIAL_MPC52xx_CONSOLE
 959        bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
 960        depends on SERIAL_MPC52xx=y
 961        select SERIAL_CORE_CONSOLE
 962        help
 963          Select this options if you'd like to use one of the PSC serial port
 964          of the Freescale MPC52xx family as a console.
 965
 966config SERIAL_MPC52xx_CONSOLE_BAUD
 967        int "Freescale MPC52xx/MPC512x family PSC serial port baud"
 968        depends on SERIAL_MPC52xx_CONSOLE=y
 969        default "9600"
 970        help
 971          Select the MPC52xx console baud rate.
 972          This value is only used if the bootloader doesn't pass in the
 973          console baudrate
 974
 975config SERIAL_ICOM
 976        tristate "IBM Multiport Serial Adapter"
 977        depends on PCI && PPC_PSERIES
 978        select SERIAL_CORE
 979        select FW_LOADER
 980        help
 981          This driver is for a family of multiport serial adapters
 982          including 2 port RVX, 2 port internal modem, 4 port internal
 983          modem and a split 1 port RVX and 1 port internal modem.
 984
 985          This driver can also be built as a module.  If so, the module
 986          will be called icom.
 987
 988config SERIAL_M32R_SIO
 989        bool "M32R SIO I/F"
 990        depends on M32R
 991        default y
 992        select SERIAL_CORE
 993        help
 994          Say Y here if you want to use the M32R serial controller.
 995
 996config SERIAL_M32R_SIO_CONSOLE
 997        bool "use SIO console"
 998        depends on SERIAL_M32R_SIO=y
 999        select SERIAL_CORE_CONSOLE
1000        help
1001          Say Y here if you want to support a serial console.
1002
1003          If you use an M3T-M32700UT or an OPSPUT platform,
1004          please say also y for SERIAL_M32R_PLDSIO.
1005
1006config SERIAL_M32R_PLDSIO
1007        bool "M32R SIO I/F on a PLD"
1008        depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1009        default n
1010        help
1011          Say Y here if you want to use the M32R serial controller
1012          on a PLD (Programmable Logic Device).
1013
1014          If you use an M3T-M32700UT or an OPSPUT platform,
1015          please say Y.
1016
1017config SERIAL_TXX9
1018        bool "TMPTX39XX/49XX SIO support"
1019        depends on HAS_TXX9_SERIAL
1020        select SERIAL_CORE
1021        default y
1022
1023config HAS_TXX9_SERIAL
1024        bool
1025
1026config SERIAL_TXX9_NR_UARTS
1027        int "Maximum number of TMPTX39XX/49XX SIO ports"
1028        depends on SERIAL_TXX9
1029        default "6"
1030
1031config SERIAL_TXX9_CONSOLE
1032        bool "TMPTX39XX/49XX SIO Console support"
1033        depends on SERIAL_TXX9=y
1034        select SERIAL_CORE_CONSOLE
1035
1036config SERIAL_TXX9_STDSERIAL
1037        bool "TX39XX/49XX SIO act as standard serial"
1038        depends on !SERIAL_8250 && SERIAL_TXX9
1039
1040config SERIAL_VR41XX
1041        tristate "NEC VR4100 series Serial Interface Unit support"
1042        depends on CPU_VR41XX
1043        select SERIAL_CORE
1044        help
1045          If you have a NEC VR4100 series processor and you want to use
1046          Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1047          (not include VR4111/VR4121 DSIU), say Y.  Otherwise, say N.
1048
1049config SERIAL_VR41XX_CONSOLE
1050        bool "Enable NEC VR4100 series Serial Interface Unit console"
1051        depends on SERIAL_VR41XX=y
1052        select SERIAL_CORE_CONSOLE
1053        help
1054          If you have a NEC VR4100 series processor and you want to use
1055          a console on a serial port, say Y.  Otherwise, say N.
1056
1057config SERIAL_JSM
1058        tristate "Digi International NEO and Classic PCI Support"
1059        depends on PCI
1060        select SERIAL_CORE
1061        help
1062          This is a driver for Digi International's Neo and Classic series
1063          of cards which provide multiple serial ports. You would need
1064          something like this to connect more than two modems to your Linux
1065          box, for instance in order to become a dial-in server. This driver
1066          supports PCI boards only.
1067
1068          If you have a card like this, say Y here, otherwise say N.
1069
1070          To compile this driver as a module, choose M here: the
1071          module will be called jsm.
1072
1073config SERIAL_SGI_IOC4
1074        tristate "SGI IOC4 controller serial support"
1075        depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1076        select SERIAL_CORE
1077        help
1078                If you have an SGI Altix with an IOC4 based Base IO card
1079                and wish to use the serial ports on this card, say Y.
1080                Otherwise, say N.
1081
1082config SERIAL_SGI_IOC3
1083        tristate "SGI Altix IOC3 serial support"
1084        depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1085        select SERIAL_CORE
1086        help
1087          If you have an SGI Altix with an IOC3 serial card,
1088          say Y or M.  Otherwise, say N.
1089
1090config SERIAL_MSM
1091        tristate "MSM on-chip serial port support"
1092        depends on ARCH_QCOM
1093        select SERIAL_CORE
1094
1095config SERIAL_MSM_CONSOLE
1096        bool "MSM serial console support"
1097        depends on SERIAL_MSM=y
1098        select SERIAL_CORE_CONSOLE
1099        select SERIAL_EARLYCON
1100
1101config SERIAL_VT8500
1102        bool "VIA VT8500 on-chip serial port support"
1103        depends on ARCH_VT8500
1104        select SERIAL_CORE
1105
1106config SERIAL_VT8500_CONSOLE
1107        bool "VIA VT8500 serial console support"
1108        depends on SERIAL_VT8500=y
1109        select SERIAL_CORE_CONSOLE
1110
1111config SERIAL_ETRAXFS
1112        bool "ETRAX FS serial port support"
1113        depends on ETRAX_ARCH_V32 && OF
1114        select SERIAL_CORE
1115        select SERIAL_MCTRL_GPIO if GPIOLIB
1116
1117config SERIAL_ETRAXFS_CONSOLE
1118        bool "ETRAX FS serial console support"
1119        depends on SERIAL_ETRAXFS
1120        select SERIAL_CORE_CONSOLE
1121
1122config SERIAL_NETX
1123        tristate "NetX serial port support"
1124        depends on ARCH_NETX
1125        select SERIAL_CORE
1126        help
1127          If you have a machine based on a Hilscher NetX SoC you
1128          can enable its onboard serial port by enabling this option.
1129
1130          To compile this driver as a module, choose M here: the
1131          module will be called netx-serial.
1132
1133config SERIAL_NETX_CONSOLE
1134        bool "Console on NetX serial port"
1135        depends on SERIAL_NETX=y
1136        select SERIAL_CORE_CONSOLE
1137        help
1138          If you have enabled the serial port on the Hilscher NetX SoC
1139          you can make it the console by answering Y to this option.
1140
1141config SERIAL_OMAP
1142        tristate "OMAP serial port support"
1143        depends on ARCH_OMAP2PLUS
1144        select SERIAL_CORE
1145        help
1146          If you have a machine based on an Texas Instruments OMAP CPU you
1147          can enable its onboard serial ports by enabling this option.
1148
1149          By enabling this option you take advantage of dma feature available
1150          with the omap-serial driver. DMA support can be enabled from platform
1151          data.
1152
1153config SERIAL_OMAP_CONSOLE
1154        bool "Console on OMAP serial port"
1155        depends on SERIAL_OMAP=y
1156        select SERIAL_CORE_CONSOLE
1157        help
1158          Select this option if you would like to use omap serial port as
1159          console.
1160
1161          Even if you say Y here, the currently visible virtual console
1162          (/dev/tty0) will still be used as the system console by default, but
1163          you can alter that using a kernel command line option such as
1164          "console=ttyOx". (Try "man bootparam" or see the documentation of
1165          your boot loader about how to pass options to the kernel at
1166          boot time.)
1167
1168config SERIAL_LANTIQ
1169        bool "Lantiq serial driver"
1170        depends on LANTIQ
1171        select SERIAL_CORE
1172        select SERIAL_CORE_CONSOLE
1173        select SERIAL_EARLYCON
1174        help
1175          Support for console and UART on Lantiq SoCs.
1176
1177config SERIAL_QE
1178        tristate "Freescale QUICC Engine serial port support"
1179        depends on QUICC_ENGINE
1180        select SERIAL_CORE
1181        select FW_LOADER
1182        default n
1183        help
1184          This driver supports the QE serial ports on Freescale embedded
1185          PowerPC that contain a QUICC Engine.
1186
1187config SERIAL_SCCNXP
1188        tristate "SCCNXP serial port support"
1189        select SERIAL_CORE
1190        help
1191          This selects support for an advanced UART from NXP (Philips).
1192          Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1193          SC28L202, SCC68681 and SCC68692.
1194
1195config SERIAL_SCCNXP_CONSOLE
1196        bool "Console on SCCNXP serial port"
1197        depends on SERIAL_SCCNXP=y
1198        select SERIAL_CORE_CONSOLE
1199        help
1200          Support for console on SCCNXP serial ports.
1201
1202config SERIAL_SC16IS7XX_CORE
1203        tristate
1204
1205config SERIAL_SC16IS7XX
1206        tristate "SC16IS7xx serial support"
1207        select SERIAL_CORE
1208        depends on (SPI_MASTER && !I2C) || I2C
1209        help
1210          This selects support for SC16IS7xx serial ports.
1211          Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1212          SC16IS760 and SC16IS762. Select supported buses using options below.
1213
1214config SERIAL_SC16IS7XX_I2C
1215        bool "SC16IS7xx for I2C interface"
1216        depends on SERIAL_SC16IS7XX
1217        depends on I2C
1218        select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1219        select REGMAP_I2C if I2C
1220        default y
1221        help
1222          Enable SC16IS7xx driver on I2C bus,
1223          If required say y, and say n to i2c if not required,
1224          Enabled by default to support oldconfig.
1225          You must select at least one bus for the driver to be built.
1226
1227config SERIAL_SC16IS7XX_SPI
1228        bool "SC16IS7xx for spi interface"
1229        depends on SERIAL_SC16IS7XX
1230        depends on SPI_MASTER
1231        select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1232        select REGMAP_SPI if SPI_MASTER
1233        help
1234          Enable SC16IS7xx driver on SPI bus,
1235          If required say y, and say n to spi if not required,
1236          This is additional support to exsisting driver.
1237          You must select at least one bus for the driver to be built.
1238
1239config SERIAL_BFIN_SPORT
1240        tristate "Blackfin SPORT emulate UART"
1241        depends on BLACKFIN
1242        select SERIAL_CORE
1243        help
1244          Enable SPORT emulate UART on Blackfin series.
1245
1246          To compile this driver as a module, choose M here: the
1247          module will be called bfin_sport_uart.
1248
1249config SERIAL_BFIN_SPORT_CONSOLE
1250        bool "Console on Blackfin sport emulated uart"
1251        depends on SERIAL_BFIN_SPORT=y
1252        select SERIAL_CORE_CONSOLE
1253
1254config SERIAL_BFIN_SPORT0_UART
1255        bool "Enable UART over SPORT0"
1256        depends on SERIAL_BFIN_SPORT && !(BF542 || BF544)
1257        help
1258          Enable UART over SPORT0
1259
1260config SERIAL_BFIN_SPORT0_UART_CTSRTS
1261        bool "Enable UART over SPORT0 hardware flow control"
1262        depends on SERIAL_BFIN_SPORT0_UART
1263        help
1264          Enable hardware flow control in the driver.
1265
1266config SERIAL_BFIN_SPORT1_UART
1267        bool "Enable UART over SPORT1"
1268        depends on SERIAL_BFIN_SPORT
1269        help
1270          Enable UART over SPORT1
1271
1272config SERIAL_BFIN_SPORT1_UART_CTSRTS
1273        bool "Enable UART over SPORT1 hardware flow control"
1274        depends on SERIAL_BFIN_SPORT1_UART
1275        help
1276          Enable hardware flow control in the driver.
1277
1278config SERIAL_BFIN_SPORT2_UART
1279        bool "Enable UART over SPORT2"
1280        depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1281        help
1282          Enable UART over SPORT2
1283
1284config SERIAL_BFIN_SPORT2_UART_CTSRTS
1285        bool "Enable UART over SPORT2 hardware flow control"
1286        depends on SERIAL_BFIN_SPORT2_UART
1287        help
1288          Enable hardware flow control in the driver.
1289
1290config SERIAL_BFIN_SPORT3_UART
1291        bool "Enable UART over SPORT3"
1292        depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1293        help
1294          Enable UART over SPORT3
1295
1296config SERIAL_BFIN_SPORT3_UART_CTSRTS
1297        bool "Enable UART over SPORT3 hardware flow control"
1298        depends on SERIAL_BFIN_SPORT3_UART
1299        help
1300          Enable hardware flow control in the driver.
1301
1302config SERIAL_TIMBERDALE
1303        tristate "Support for timberdale UART"
1304        select SERIAL_CORE
1305        depends on X86_32 || COMPILE_TEST
1306        ---help---
1307        Add support for UART controller on timberdale.
1308
1309config SERIAL_BCM63XX
1310        tristate "Broadcom BCM63xx/BCM33xx UART support"
1311        select SERIAL_CORE
1312        depends on MIPS || ARM || COMPILE_TEST
1313        help
1314          This enables the driver for the onchip UART core found on
1315          the following chipsets:
1316
1317            BCM33xx (cable modem)
1318            BCM63xx/BCM63xxx (DSL)
1319            BCM68xx (PON)
1320            BCM7xxx (STB) - DOCSIS console
1321
1322config SERIAL_BCM63XX_CONSOLE
1323        bool "Console on BCM63xx serial port"
1324        depends on SERIAL_BCM63XX=y
1325        select SERIAL_CORE_CONSOLE
1326        select SERIAL_EARLYCON
1327        help
1328          If you have enabled the serial port on the BCM63xx CPU
1329          you can make it the console by answering Y to this option.
1330
1331config SERIAL_GRLIB_GAISLER_APBUART
1332        tristate "GRLIB APBUART serial support"
1333        depends on OF && SPARC
1334        select SERIAL_CORE
1335        ---help---
1336        Add support for the GRLIB APBUART serial port.
1337
1338config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1339        bool "Console on GRLIB APBUART serial port"
1340        depends on SERIAL_GRLIB_GAISLER_APBUART=y
1341        select SERIAL_CORE_CONSOLE
1342        help
1343        Support for running a console on the GRLIB APBUART
1344
1345config SERIAL_ALTERA_JTAGUART
1346        tristate "Altera JTAG UART support"
1347        select SERIAL_CORE
1348        help
1349          This driver supports the Altera JTAG UART port.
1350
1351config SERIAL_ALTERA_JTAGUART_CONSOLE
1352        bool "Altera JTAG UART console support"
1353        depends on SERIAL_ALTERA_JTAGUART=y
1354        select SERIAL_CORE_CONSOLE
1355        select SERIAL_EARLYCON
1356        help
1357          Enable a Altera JTAG UART port to be the system console.
1358
1359config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1360        bool "Bypass output when no connection"
1361        depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1362        select SERIAL_CORE_CONSOLE
1363        help
1364          Bypass console output and keep going even if there is no
1365          JTAG terminal connection with the host.
1366
1367config SERIAL_ALTERA_UART
1368        tristate "Altera UART support"
1369        select SERIAL_CORE
1370        help
1371          This driver supports the Altera softcore UART port.
1372
1373config SERIAL_ALTERA_UART_MAXPORTS
1374        int "Maximum number of Altera UART ports"
1375        depends on SERIAL_ALTERA_UART
1376        default 4
1377        help
1378          This setting lets you define the maximum number of the Altera
1379          UART ports. The usual default varies from board to board, and
1380          this setting is a way of catering for that.
1381
1382config SERIAL_ALTERA_UART_BAUDRATE
1383        int "Default baudrate for Altera UART ports"
1384        depends on SERIAL_ALTERA_UART
1385        default 115200
1386        help
1387          This setting lets you define what the default baudrate is for the
1388          Altera UART ports. The usual default varies from board to board,
1389          and this setting is a way of catering for that.
1390
1391config SERIAL_ALTERA_UART_CONSOLE
1392        bool "Altera UART console support"
1393        depends on SERIAL_ALTERA_UART=y
1394        select SERIAL_CORE_CONSOLE
1395        select SERIAL_EARLYCON
1396        help
1397          Enable a Altera UART port to be the system console.
1398
1399config SERIAL_IFX6X60
1400        tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1401        depends on GPIOLIB || COMPILE_TEST
1402        depends on SPI && HAS_DMA
1403        help
1404          Support for the IFX6x60 modem devices on Intel MID platforms.
1405
1406config SERIAL_PCH_UART
1407        tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1408        depends on PCI && (X86_32 || MIPS ||  COMPILE_TEST)
1409        select SERIAL_CORE
1410        help
1411          This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1412          which is an IOH(Input/Output Hub) for x86 embedded processor.
1413          Enabling PCH_DMA, this PCH UART works as DMA mode.
1414
1415          This driver also can be used for LAPIS Semiconductor IOH(Input/
1416          Output Hub), ML7213, ML7223 and ML7831.
1417          ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1418          for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1419          ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1420          ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1421
1422config SERIAL_PCH_UART_CONSOLE
1423        bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1424        depends on SERIAL_PCH_UART=y
1425        select SERIAL_CORE_CONSOLE
1426        help
1427          Say Y here if you wish to use the PCH UART as the system console
1428          (the system  console is the device which receives all kernel messages and
1429          warnings and which allows logins in single user mode).
1430
1431config SERIAL_MXS_AUART
1432        tristate "MXS AUART support"
1433        depends on HAS_DMA
1434        depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1435        select SERIAL_CORE
1436        select SERIAL_MCTRL_GPIO if GPIOLIB
1437        help
1438          This driver supports the MXS and Alphascale ASM9260 Application
1439          UART (AUART) port.
1440
1441config SERIAL_MXS_AUART_CONSOLE
1442        bool "MXS AUART console support"
1443        depends on SERIAL_MXS_AUART=y
1444        select SERIAL_CORE_CONSOLE
1445        help
1446          Enable a MXS AUART port to be the system console.
1447
1448config SERIAL_XILINX_PS_UART
1449        tristate "Cadence (Xilinx Zynq) UART support"
1450        depends on OF
1451        select SERIAL_CORE
1452        help
1453          This driver supports the Cadence UART. It is found e.g. in Xilinx
1454          Zynq.
1455
1456config SERIAL_XILINX_PS_UART_CONSOLE
1457        bool "Cadence UART console support"
1458        depends on SERIAL_XILINX_PS_UART=y
1459        select SERIAL_CORE_CONSOLE
1460        select SERIAL_EARLYCON
1461        help
1462          Enable a Cadence UART port to be the system console.
1463
1464config SERIAL_AR933X
1465        tristate "AR933X serial port support"
1466        depends on HAVE_CLK && SOC_AR933X
1467        select SERIAL_CORE
1468        help
1469          If you have an Atheros AR933X SOC based board and want to use the
1470          built-in UART of the SoC, say Y to this option.
1471
1472          To compile this driver as a module, choose M here: the
1473          module will be called ar933x_uart.
1474
1475config SERIAL_AR933X_CONSOLE
1476        bool "Console on AR933X serial port"
1477        depends on SERIAL_AR933X=y
1478        select SERIAL_CORE_CONSOLE
1479        help
1480          Enable a built-in UART port of the AR933X to be the system console.
1481
1482config SERIAL_AR933X_NR_UARTS
1483        int "Maximum number of AR933X serial ports"
1484        depends on SERIAL_AR933X
1485        default "2"
1486        help
1487          Set this to the number of serial ports you want the driver
1488          to support.
1489
1490config SERIAL_EFM32_UART
1491        tristate "EFM32 UART/USART port"
1492        depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1493        select SERIAL_CORE
1494        help
1495          This driver support the USART and UART ports on
1496          Energy Micro's efm32 SoCs.
1497
1498config SERIAL_MPS2_UART_CONSOLE
1499        bool "MPS2 UART console support"
1500        depends on SERIAL_MPS2_UART
1501        select SERIAL_CORE_CONSOLE
1502        select SERIAL_EARLYCON
1503
1504config SERIAL_MPS2_UART
1505        bool "MPS2 UART port"
1506        depends on ARCH_MPS2 || COMPILE_TEST
1507        select SERIAL_CORE
1508        help
1509          This driver support the UART ports on ARM MPS2.
1510
1511config SERIAL_EFM32_UART_CONSOLE
1512        bool "EFM32 UART/USART console support"
1513        depends on SERIAL_EFM32_UART=y
1514        select SERIAL_CORE_CONSOLE
1515
1516config SERIAL_TILEGX
1517        tristate "TILE-Gx on-chip serial port support"
1518        depends on TILEGX
1519        select TILE_GXIO_UART
1520        select SERIAL_CORE
1521        ---help---
1522          This device provides access to the on-chip UARTs on the TILE-Gx
1523          processor.
1524
1525config SERIAL_ARC
1526        tristate "ARC UART driver support"
1527        select SERIAL_CORE
1528        help
1529          Driver for on-chip UART for ARC(Synopsys) for the legacy
1530          FPGA Boards (ML50x/ARCAngel4)
1531
1532config SERIAL_ARC_CONSOLE
1533        bool "Console on ARC UART"
1534        depends on SERIAL_ARC=y
1535        select SERIAL_CORE_CONSOLE
1536        select SERIAL_EARLYCON
1537        help
1538          Enable system Console on ARC UART
1539
1540config SERIAL_ARC_NR_PORTS
1541        int "Number of ARC UART ports"
1542        depends on SERIAL_ARC
1543        range 1 3
1544        default "1"
1545        help
1546          Set this to the number of serial ports you want the driver
1547          to support.
1548
1549config SERIAL_RP2
1550        tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1551        depends on PCI
1552        select SERIAL_CORE
1553        help
1554          This driver supports the Comtrol RocketPort EXPRESS and
1555          RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1556          These adapters use a "RocketPort 2" ASIC that is not compatible
1557          with the original RocketPort driver (CONFIG_ROCKETPORT).
1558
1559          To compile this driver as a module, choose M here: the
1560          module will be called rp2.
1561
1562          If you want to compile this driver into the kernel, say Y here.  If
1563          you don't have a suitable RocketPort card installed, say N.
1564
1565config SERIAL_RP2_NR_UARTS
1566        int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1567        depends on SERIAL_RP2
1568        default "32"
1569        help
1570          If multiple cards are present, the default limit of 32 ports may
1571          need to be increased.
1572
1573config SERIAL_FSL_LPUART
1574        tristate "Freescale lpuart serial port support"
1575        depends on HAS_DMA
1576        select SERIAL_CORE
1577        help
1578          Support for the on-chip lpuart on some Freescale SOCs.
1579
1580config SERIAL_FSL_LPUART_CONSOLE
1581        bool "Console on Freescale lpuart serial port"
1582        depends on SERIAL_FSL_LPUART=y
1583        select SERIAL_CORE_CONSOLE
1584        select SERIAL_EARLYCON
1585        help
1586          If you have enabled the lpuart serial port on the Freescale SoCs,
1587          you can make it the console by answering Y to this option.
1588
1589config SERIAL_CONEXANT_DIGICOLOR
1590        tristate "Conexant Digicolor CX92xxx USART serial port support"
1591        depends on OF
1592        select SERIAL_CORE
1593        help
1594          Support for the on-chip USART on Conexant Digicolor SoCs.
1595
1596config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1597        bool "Console on Conexant Digicolor serial port"
1598        depends on SERIAL_CONEXANT_DIGICOLOR=y
1599        select SERIAL_CORE_CONSOLE
1600        help
1601          If you have enabled the USART serial port on Conexant Digicolor
1602          SoCs, you can make it the console by answering Y to this option.
1603
1604config SERIAL_ST_ASC
1605        tristate "ST ASC serial port support"
1606        select SERIAL_CORE
1607        depends on ARM || COMPILE_TEST
1608        help
1609          This driver is for the on-chip Asychronous Serial Controller on
1610          STMicroelectronics STi SoCs.
1611          ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1612          It support all industry standard baud rates.
1613
1614          If unsure, say N.
1615
1616config SERIAL_ST_ASC_CONSOLE
1617        bool "Support for console on ST ASC"
1618        depends on SERIAL_ST_ASC=y
1619        select SERIAL_CORE_CONSOLE
1620
1621config SERIAL_MEN_Z135
1622        tristate "MEN 16z135 Support"
1623        select SERIAL_CORE
1624        depends on MCB
1625        help
1626          Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1627          on a MCB carrier.
1628
1629          This driver can also be build as a module. If so, the module will be called
1630          men_z135_uart.ko
1631
1632config SERIAL_SPRD
1633        tristate "Support for Spreadtrum serial"
1634        depends on ARCH_SPRD
1635        select SERIAL_CORE
1636        help
1637          This enables the driver for the Spreadtrum's serial.
1638
1639config SERIAL_SPRD_CONSOLE
1640        bool "Spreadtrum UART console support"
1641        depends on SERIAL_SPRD=y
1642        select SERIAL_CORE_CONSOLE
1643        select SERIAL_EARLYCON
1644        help
1645          Support for early debug console using Spreadtrum's serial. This enables
1646          the console before standard serial driver is probed. This is enabled
1647          with "earlycon" on the kernel command line. The console is
1648          enabled when early_param is processed.
1649
1650config SERIAL_STM32
1651        tristate "STMicroelectronics STM32 serial port support"
1652        select SERIAL_CORE
1653        depends on HAS_DMA
1654        depends on ARCH_STM32 || COMPILE_TEST
1655        help
1656          This driver is for the on-chip Serial Controller on
1657          STMicroelectronics STM32 MCUs.
1658          USART supports Rx & Tx functionality.
1659          It support all industry standard baud rates.
1660
1661          If unsure, say N.
1662
1663config SERIAL_STM32_CONSOLE
1664        bool "Support for console on STM32"
1665        depends on SERIAL_STM32=y
1666        select SERIAL_CORE_CONSOLE
1667
1668config SERIAL_MVEBU_UART
1669        bool "Marvell EBU serial port support"
1670        depends on ARCH_MVEBU || COMPILE_TEST
1671        select SERIAL_CORE
1672        help
1673          This driver is for Marvell EBU SoC's UART. If you have a machine
1674          based on the Armada-3700 SoC and wish to use the on-board serial
1675          port,
1676          say 'Y' here.
1677          Otherwise, say 'N'.
1678
1679config SERIAL_MVEBU_CONSOLE
1680        bool "Console on Marvell EBU serial port"
1681        depends on SERIAL_MVEBU_UART
1682        select SERIAL_CORE_CONSOLE
1683        select SERIAL_EARLYCON
1684        default y
1685        help
1686          Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1687          (the system console is the device which receives all kernel messages
1688          and warnings and which allows logins in single user mode)
1689          Otherwise, say 'N'.
1690
1691config SERIAL_OWL
1692        bool "Actions Semi Owl serial port support"
1693        depends on ARCH_ACTIONS || COMPILE_TEST
1694        select SERIAL_CORE
1695        help
1696          This driver is for Actions Semiconductor S500/S900 SoC's UART.
1697          Say 'Y' here if you wish to use the on-board serial port.
1698          Otherwise, say 'N'.
1699
1700config SERIAL_OWL_CONSOLE
1701        bool "Console on Actions Semi Owl serial port"
1702        depends on SERIAL_OWL=y
1703        select SERIAL_CORE_CONSOLE
1704        select SERIAL_EARLYCON
1705        default y
1706        help
1707          Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART
1708          as the system console. Only earlycon is implemented currently.
1709
1710endmenu
1711
1712config SERIAL_MCTRL_GPIO
1713        tristate
1714
1715endif # TTY
1716