2 # Serial device configuration
4 # $Id: Kconfig,v 1.11 2004/03/11 18:08:04 lethal Exp $
11 # The new 8250/16550 serial drivers
13 tristate "8250/16550 and compatible serial support"
14 depends on (BROKEN || !SPARC)
17 This selects whether you want to include the driver for the standard
18 serial ports. The standard answer is Y. People who might say N
19 here are those that are setting up dedicated Ethernet WWW/FTP
20 servers, or users that have one of the various bus mice instead of a
21 serial mouse and don't intend to use their machine's standard serial
22 port for anything. (Note that the Cyclades and Stallion multi
23 serial port drivers do not need this driver built in for them to
26 To compile this driver as a module, choose M here: the
27 module will be called 8250.
28 [WARNING: Do not compile this driver as a module if you are using
29 non-standard serial ports, since the configuration information will
30 be lost when the driver is unloaded. This limitation may be lifted
33 BTW1: If you have a mouseman serial mouse which is not recognized by
34 the X window system, try running gpm first.
36 BTW2: If you intend to use a software modem (also called Winmodem)
37 under Linux, forget it. These modems are crippled and require
38 proprietary drivers which are only available under Windows.
40 Most people will say Y or M here, so that they can use serial mice,
41 modems and similar devices connecting to the standard serial ports.
43 config SERIAL_8250_CONSOLE
44 bool "Console on 8250/16550 and compatible serial port"
45 depends on SERIAL_8250=y
46 select SERIAL_CORE_CONSOLE
48 If you say Y here, it will be possible to use a serial port as the
49 system console (the system console is the device which receives all
50 kernel messages and warnings and which allows logins in single user
51 mode). This could be useful if some terminal or printer is connected
54 Even if you say Y here, the currently visible virtual console
55 (/dev/tty0) will still be used as the system console by default, but
56 you can alter that using a kernel command line option such as
57 "console=ttyS1". (Try "man bootparam" or see the documentation of
58 your boot loader (grub or lilo or loadlin) about how to pass options
59 to the kernel at boot time.)
61 If you don't have a VGA card installed and you say Y here, the
62 kernel will automatically use the first serial line, /dev/ttyS0, as
65 You can set that using a kernel command line option such as
66 "console=uart8250,io,0x3f8,9600n8"
67 "console=uart8250,mmio,0xff5e0000,115200n8".
68 and it will switch to normal serial console when the corresponding
70 "earlycon=uart8250,io,0x3f8,9600n8"
71 "earlycon=uart8250,mmio,0xff5e0000,115200n8".
72 it will not only setup early console.
76 config FIX_EARLYCON_MEM
81 config SERIAL_8250_GSC
83 depends on SERIAL_8250 && GSC
86 config SERIAL_8250_PCI
87 tristate "8250/16550 PCI device support" if EMBEDDED
88 depends on SERIAL_8250 && PCI
91 This builds standard PCI serial support. You may be able to
92 disable this feature if you only need legacy serial support.
95 config SERIAL_8250_PNP
96 tristate "8250/16550 PNP device support" if EMBEDDED
97 depends on SERIAL_8250 && PNP
100 This builds standard PNP serial support. You may be able to
101 disable this feature if you only need legacy serial support.
103 config SERIAL_8250_HP300
105 depends on SERIAL_8250 && HP300
108 config SERIAL_8250_CS
109 tristate "8250/16550 PCMCIA device support"
110 depends on PCMCIA && SERIAL_8250
112 Say Y here to enable support for 16-bit PCMCIA serial devices,
113 including serial port cards, modems, and the modem functions of
114 multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
115 credit-card size devices often used with laptops.)
117 To compile this driver as a module, choose M here: the
118 module will be called serial_cs.
122 config SERIAL_8250_NR_UARTS
123 int "Maximum number of 8250/16550 serial ports"
124 depends on SERIAL_8250
127 Set this to the number of serial ports you want the driver
128 to support. This includes any ports discovered via ACPI or
129 PCI enumeration and any ports that may be added at run-time
130 via hot-plug, or any ISA multi-port serial cards.
132 config SERIAL_8250_RUNTIME_UARTS
133 int "Number of 8250/16550 serial ports to register at runtime"
134 depends on SERIAL_8250
135 range 0 SERIAL_8250_NR_UARTS
138 Set this to the maximum number of serial ports you want
139 the kernel to register at boot time. This can be overridden
140 with the module parameter "nr_uarts", or boot-time parameter
143 config SERIAL_8250_EXTENDED
144 bool "Extended 8250/16550 serial driver options"
145 depends on SERIAL_8250
147 If you wish to use any non-standard features of the standard "dumb"
148 driver, say Y here. This includes HUB6 support, shared serial
149 interrupts, special multiport support, support for more than the
150 four COM 1/2/3/4 boards, etc.
152 Note that the answer to this question won't directly affect the
153 kernel: saying N will just cause the configurator to skip all
154 the questions about serial driver options. If unsure, say N.
156 config SERIAL_8250_MANY_PORTS
157 bool "Support more than 4 legacy serial ports"
158 depends on SERIAL_8250_EXTENDED && !IA64
160 Say Y here if you have dumb serial boards other than the four
161 standard COM 1/2/3/4 ports. This may happen if you have an AST
162 FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
163 from <http://www.tldp.org/docs.html#howto>), or other custom
164 serial port hardware which acts similar to standard serial port
165 hardware. If you only use the standard COM 1/2/3/4 ports, you can
166 say N here to save some memory. You can also say Y if you have an
167 "intelligent" multiport card such as Cyclades, Digiboards, etc.
170 # Multi-port serial cards
173 config SERIAL_8250_FOURPORT
174 tristate "Support Fourport cards"
175 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
177 Say Y here if you have an AST FourPort serial board.
179 To compile this driver as a module, choose M here: the module
180 will be called 8250_fourport.
182 config SERIAL_8250_ACCENT
183 tristate "Support Accent cards"
184 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
186 Say Y here if you have an Accent Async serial board.
188 To compile this driver as a module, choose M here: the module
189 will be called 8250_accent.
191 config SERIAL_8250_BOCA
192 tristate "Support Boca cards"
193 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
195 Say Y here if you have a Boca serial board. Please read the Boca
196 mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>
198 To compile this driver as a module, choose M here: the module
199 will be called 8250_boca.
201 config SERIAL_8250_EXAR_ST16C554
202 tristate "Support Exar ST16C554/554D Quad UART"
203 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
205 The Uplogix Envoy TU301 uses this Exar Quad UART. If you are
206 tinkering with your Envoy TU301, or have a machine with this UART,
209 To compile this driver as a module, choose M here: the module
210 will be called 8250_exar_st16c554.
212 config SERIAL_8250_HUB6
213 tristate "Support Hub6 cards"
214 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
216 Say Y here if you have a HUB6 serial board.
218 To compile this driver as a module, choose M here: the module
219 will be called 8250_hub6.
221 config SERIAL_8250_SHARE_IRQ
222 bool "Support for sharing serial interrupts"
223 depends on SERIAL_8250_EXTENDED
225 Some serial boards have hardware support which allows multiple dumb
226 serial ports on the same board to share a single IRQ. To enable
227 support for this in the serial driver, say Y here.
229 config SERIAL_8250_DETECT_IRQ
230 bool "Autodetect IRQ on standard ports (unsafe)"
231 depends on SERIAL_8250_EXTENDED
233 Say Y here if you want the kernel to try to guess which IRQ
234 to use for your serial port.
236 This is considered unsafe; it is far better to configure the IRQ in
237 a boot script using the setserial command.
241 config SERIAL_8250_RSA
242 bool "Support RSA serial ports"
243 depends on SERIAL_8250_EXTENDED
245 ::: To be written :::
247 config SERIAL_8250_MCA
248 tristate "Support 8250-type ports on MCA buses"
249 depends on SERIAL_8250 != n && MCA
251 Say Y here if you have a MCA serial ports.
253 To compile this driver as a module, choose M here: the module
254 will be called 8250_mca.
256 config SERIAL_8250_ACORN
257 tristate "Acorn expansion card serial port support"
258 depends on ARCH_ACORN && SERIAL_8250
260 If you have an Atomwide Serial card or Serial Port card for an Acorn
261 system, say Y to this option. The driver can handle 1, 2, or 3 port
262 cards. If unsure, say N.
264 config SERIAL_8250_AU1X00
265 bool "Au1x00 serial port support"
266 depends on SERIAL_8250 != n && SOC_AU1X00
268 If you have an Au1x00 SOC based board and want to use the serial port,
269 say Y to this option. The driver can handle up to 4 serial ports,
270 depending on the SOC. If unsure, say N.
272 config SERIAL_8250_RM9K
273 bool "Support for MIPS RM9xxx integrated serial port"
274 depends on SERIAL_8250 != n && SERIAL_RM9000
275 select SERIAL_8250_SHARE_IRQ
277 Selecting this option will add support for the integrated serial
278 port hardware found on MIPS RM9122 and similar processors.
281 comment "Non-8250 serial port support"
283 config SERIAL_AMBA_PL010
284 tristate "ARM AMBA PL010 serial port support"
285 depends on ARM_AMBA && (BROKEN || !ARCH_VERSATILE)
288 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have
289 an Integrator/AP or Integrator/PP2 platform, or if you have a
290 Cirrus Logic EP93xx CPU, say Y or M here.
294 config SERIAL_AMBA_PL010_CONSOLE
295 bool "Support for console on AMBA serial port"
296 depends on SERIAL_AMBA_PL010=y
297 select SERIAL_CORE_CONSOLE
299 Say Y here if you wish to use an AMBA PrimeCell UART as the system
300 console (the system console is the device which receives all kernel
301 messages and warnings and which allows logins in single user mode).
303 Even if you say Y here, the currently visible framebuffer console
304 (/dev/tty0) will still be used as the system console by default, but
305 you can alter that using a kernel command line option such as
306 "console=ttyAM0". (Try "man bootparam" or see the documentation of
307 your boot loader (lilo or loadlin) about how to pass options to the
308 kernel at boot time.)
310 config SERIAL_AMBA_PL011
311 tristate "ARM AMBA PL011 serial port support"
315 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have
316 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
321 config SERIAL_AMBA_PL011_CONSOLE
322 bool "Support for console on AMBA serial port"
323 depends on SERIAL_AMBA_PL011=y
324 select SERIAL_CORE_CONSOLE
326 Say Y here if you wish to use an AMBA PrimeCell UART as the system
327 console (the system console is the device which receives all kernel
328 messages and warnings and which allows logins in single user mode).
330 Even if you say Y here, the currently visible framebuffer console
331 (/dev/tty0) will still be used as the system console by default, but
332 you can alter that using a kernel command line option such as
333 "console=ttyAMA0". (Try "man bootparam" or see the documentation of
334 your boot loader (lilo or loadlin) about how to pass options to the
335 kernel at boot time.)
337 config SERIAL_SB1250_DUART
338 tristate "BCM1xxx on-chip DUART serial support"
339 depends on SIBYTE_SB1xxx_SOC=y
343 Support for the asynchronous serial interface (DUART) included in
344 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
345 the letter D in DUART stands for "dual", which is how the device
346 is implemented. Depending on the SOC configuration there may be
347 one or more DUARTs available of which all are handled.
349 If unsure, say Y. To compile this driver as a module, choose M here:
350 the module will be called sb1250-duart.
352 config SERIAL_SB1250_DUART_CONSOLE
353 bool "Support for console on a BCM1xxx DUART serial port"
354 depends on SERIAL_SB1250_DUART=y
355 select SERIAL_CORE_CONSOLE
358 If you say Y here, it will be possible to use a serial port as the
359 system console (the system console is the device which receives all
360 kernel messages and warnings and which allows logins in single user
366 bool "AT91 / AT32 on-chip serial port support"
367 depends on (ARM && ARCH_AT91) || AVR32
370 This enables the driver for the on-chip UARTs of the Atmel
371 AT91 and AT32 processors.
373 config SERIAL_ATMEL_CONSOLE
374 bool "Support for console on AT91 / AT32 serial port"
375 depends on SERIAL_ATMEL=y
376 select SERIAL_CORE_CONSOLE
378 Say Y here if you wish to use an on-chip UART on a Atmel
379 AT91 or AT32 processor as the system console (the system
380 console is the device which receives all kernel messages and
381 warnings and which allows logins in single user mode).
383 config SERIAL_ATMEL_PDC
384 bool "Support DMA transfers on AT91 / AT32 serial port"
385 depends on SERIAL_ATMEL
388 Say Y here if you wish to use the PDC to do DMA transfers to
389 and from the Atmel AT91 / AT32 serial port. In order to
390 actually use DMA transfers, make sure that the use_dma_tx
391 and use_dma_rx members in the atmel_uart_data struct is set
392 appropriately for each port.
394 Note that break and error handling currently doesn't work
395 properly when DMA is enabled. Make sure that ports where
396 this matters don't use DMA.
398 config SERIAL_ATMEL_TTYAT
399 bool "Install as device ttyATn instead of ttySn"
400 depends on SERIAL_ATMEL=y
402 Say Y here if you wish to have the internal AT91 / AT32 UARTs
403 appear as /dev/ttyATn (major 204, minor starting at 154)
404 instead of the normal /dev/ttySn (major 4, minor starting at
405 64). This is necessary if you also want other UARTs, such as
406 external 8250/16C550 compatible UARTs.
407 The ttySn nodes are legally reserved for the 8250 serial driver
408 but are often misused by other serial drivers.
410 To use this, you should create suitable ttyATn device nodes in
411 /dev/, and pass "console=ttyATn" to the kernel.
413 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
416 bool "Micrel KS8695 (Centaur) serial port support"
417 depends on ARCH_KS8695
420 This selects the Micrel Centaur KS8695 UART. Say Y here.
422 config SERIAL_KS8695_CONSOLE
423 bool "Support for console on KS8695 (Centaur) serial port"
424 depends on SERIAL_KS8695=y
425 select SERIAL_CORE_CONSOLE
427 Say Y here if you wish to use a KS8695 (Centaur) UART as the
428 system console (the system console is the device which
429 receives all kernel messages and warnings and which allows
430 logins in single user mode).
432 config SERIAL_CLPS711X
433 tristate "CLPS711X serial port support"
434 depends on ARM && ARCH_CLPS711X
437 ::: To be written :::
439 config SERIAL_CLPS711X_CONSOLE
440 bool "Support for console on CLPS711X serial port"
441 depends on SERIAL_CLPS711X=y
442 select SERIAL_CORE_CONSOLE
444 Even if you say Y here, the currently visible virtual console
445 (/dev/tty0) will still be used as the system console by default, but
446 you can alter that using a kernel command line option such as
447 "console=ttyCL1". (Try "man bootparam" or see the documentation of
448 your boot loader (lilo or loadlin) about how to pass options to the
449 kernel at boot time.)
451 config SERIAL_SAMSUNG
452 tristate "Samsung SoC serial support"
453 depends on ARM && PLAT_S3C24XX
456 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
457 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
458 provide all of these ports, depending on how the serial port
461 config SERIAL_SAMSUNG_DEBUG
462 bool "Samsung SoC serial debug"
463 depends on SERIAL_SAMSUNG
465 Add support for debugging the serial driver. Since this is
466 generally being used as a console, we use our own output
467 routines that go via the low-level debug printascii()
470 config SERIAL_SAMSUNG_CONSOLE
471 bool "Support for console on Samsung SoC serial port"
472 depends on SERIAL_SAMSUNG=y
473 select SERIAL_CORE_CONSOLE
475 Allow selection of the S3C24XX on-board serial ports for use as
478 Even if you say Y here, the currently visible virtual console
479 (/dev/tty0) will still be used as the system console by default, but
480 you can alter that using a kernel command line option such as
481 "console=ttySACx". (Try "man bootparam" or see the documentation of
482 your boot loader about how to pass options to the kernel at
485 config SERIAL_S3C2400
486 tristate "Samsung S3C2410 Serial port support"
487 depends on ARM && SERIAL_SAMSUNG && CPU_S3C2400
488 default y if CPU_S3C2400
490 Serial port support for the Samsung S3C2400 SoC
492 config SERIAL_S3C2410
493 tristate "Samsung S3C2410 Serial port support"
494 depends on SERIAL_SAMSUNG && CPU_S3C2410
495 default y if CPU_S3C2410
497 Serial port support for the Samsung S3C2410 SoC
499 config SERIAL_S3C2412
500 tristate "Samsung S3C2412/S3C2413 Serial port support"
501 depends on SERIAL_SAMSUNG && CPU_S3C2412
502 default y if CPU_S3C2412
504 Serial port support for the Samsung S3C2412 and S3C2413 SoC
506 config SERIAL_S3C2440
507 tristate "Samsung S3C2440/S3C2442 Serial port support"
508 depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442)
509 default y if CPU_S3C2440
510 default y if CPU_S3C2442
512 Serial port support for the Samsung S3C2440 and S3C2442 SoC
517 bool "DECstation DZ serial driver"
518 depends on MACH_DECSTATION && 32BIT
522 DZ11-family serial controllers for DECstations and VAXstations,
523 including the DC7085, M7814, and M7819.
525 config SERIAL_DZ_CONSOLE
526 bool "Support console on DECstation DZ serial driver"
527 depends on SERIAL_DZ=y
528 select SERIAL_CORE_CONSOLE
531 If you say Y here, it will be possible to use a serial port as the
532 system console (the system console is the device which receives all
533 kernel messages and warnings and which allows logins in single user
536 Note that the firmware uses ttyS3 as the serial console on
537 DECstations that use this driver.
542 tristate "DECstation Z85C30 serial support"
543 depends on MACH_DECSTATION
547 Support for the Zilog 85C350 serial communications controller used
548 for serial ports in newer DECstation systems. These include the
549 DECsystem 5900 and all models of the DECstation and DECsystem 5000
550 systems except from model 200.
552 If unsure, say Y. To compile this driver as a module, choose M here:
553 the module will be called zs.
555 config SERIAL_ZS_CONSOLE
556 bool "Support for console on a DECstation Z85C30 serial port"
557 depends on SERIAL_ZS=y
558 select SERIAL_CORE_CONSOLE
561 If you say Y here, it will be possible to use a serial port as the
562 system console (the system console is the device which receives all
563 kernel messages and warnings and which allows logins in single user
566 Note that the firmware uses ttyS1 as the serial console on the
567 Maxine and ttyS3 on the others using this driver.
572 tristate "DC21285 serial port support"
573 depends on ARM && FOOTBRIDGE
576 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
577 PCI bridge you can enable its onboard serial port by enabling this
580 config SERIAL_21285_CONSOLE
581 bool "Console on DC21285 serial port"
582 depends on SERIAL_21285=y
583 select SERIAL_CORE_CONSOLE
585 If you have enabled the serial port on the 21285 footbridge you can
586 make it the console by answering Y to this option.
588 Even if you say Y here, the currently visible virtual console
589 (/dev/tty0) will still be used as the system console by default, but
590 you can alter that using a kernel command line option such as
591 "console=ttyFB". (Try "man bootparam" or see the documentation of
592 your boot loader (lilo or loadlin) about how to pass options to the
593 kernel at boot time.)
596 bool "Marvell MPSC serial port support"
597 depends on PPC32 && MV64X60
600 Say Y here if you want to use the Marvell MPSC serial controller.
602 config SERIAL_MPSC_CONSOLE
603 bool "Support for console on Marvell MPSC serial port"
604 depends on SERIAL_MPSC
605 select SERIAL_CORE_CONSOLE
607 Say Y here if you want to support a serial console on a Marvell MPSC.
610 bool "PXA serial port support"
611 depends on ARM && ARCH_PXA
614 If you have a machine based on an Intel XScale PXA2xx CPU you
615 can enable its onboard serial ports by enabling this option.
617 config SERIAL_PXA_CONSOLE
618 bool "Console on PXA serial port"
619 depends on SERIAL_PXA
620 select SERIAL_CORE_CONSOLE
622 If you have enabled the serial port on the Intel XScale PXA
623 CPU you can make it the console by answering Y to this option.
625 Even if you say Y here, the currently visible virtual console
626 (/dev/tty0) will still be used as the system console by default, but
627 you can alter that using a kernel command line option such as
628 "console=ttySA0". (Try "man bootparam" or see the documentation of
629 your boot loader (lilo or loadlin) about how to pass options to the
630 kernel at boot time.)
633 bool "SA1100 serial port support"
634 depends on ARM && ARCH_SA1100
637 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
638 can enable its onboard serial port by enabling this option.
639 Please read <file:Documentation/arm/SA1100/serial_UART> for further
642 config SERIAL_SA1100_CONSOLE
643 bool "Console on SA1100 serial port"
644 depends on SERIAL_SA1100
645 select SERIAL_CORE_CONSOLE
647 If you have enabled the serial port on the SA1100/SA1110 StrongARM
648 CPU you can make it the console by answering Y to this option.
650 Even if you say Y here, the currently visible virtual console
651 (/dev/tty0) will still be used as the system console by default, but
652 you can alter that using a kernel command line option such as
653 "console=ttySA0". (Try "man bootparam" or see the documentation of
654 your boot loader (lilo or loadlin) about how to pass options to the
655 kernel at boot time.)
658 tristate "Blackfin serial port support"
661 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
663 Add support for the built-in UARTs on the Blackfin.
665 To compile this driver as a module, choose M here: the
666 module will be called bfin_5xx.
668 config SERIAL_BFIN_CONSOLE
669 bool "Console on Blackfin serial port"
670 depends on SERIAL_BFIN=y
671 select SERIAL_CORE_CONSOLE
675 depends on SERIAL_BFIN
676 default SERIAL_BFIN_DMA
678 This driver supports the built-in serial ports of the Blackfin family
681 config SERIAL_BFIN_DMA
683 depends on !DMA_UNCACHED_NONE && !KGDB_UART
685 This driver works under DMA mode. If this option is selected, the
686 blackfin simple dma driver is also enabled.
688 config SERIAL_BFIN_PIO
691 This driver works under PIO mode.
695 config SERIAL_BFIN_UART0
697 depends on SERIAL_BFIN
701 config BFIN_UART0_CTSRTS
702 bool "Enable UART0 hardware flow control"
703 depends on SERIAL_BFIN_UART0
705 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
710 depends on BFIN_UART0_CTSRTS
713 The default pin is GPIO_GP7.
714 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
718 depends on BFIN_UART0_CTSRTS
721 The default pin is GPIO_GP6.
722 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
724 config SERIAL_BFIN_UART1
726 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
730 config BFIN_UART1_CTSRTS
731 bool "Enable UART1 hardware flow control"
732 depends on SERIAL_BFIN_UART1
734 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
739 depends on BFIN_UART1_CTSRTS && !BF54x
742 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
746 depends on BFIN_UART1_CTSRTS && !BF54x
749 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
751 config SERIAL_BFIN_UART2
753 depends on SERIAL_BFIN && (BF54x)
757 config BFIN_UART2_CTSRTS
758 bool "Enable UART2 hardware flow control"
759 depends on SERIAL_BFIN_UART2
761 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
766 depends on BFIN_UART2_CTSRTS
769 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
773 depends on BFIN_UART2_CTSRTS
776 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
778 config SERIAL_BFIN_UART3
780 depends on SERIAL_BFIN && (BF54x)
784 config BFIN_UART3_CTSRTS
785 bool "Enable UART3 hardware flow control"
786 depends on SERIAL_BFIN_UART3
788 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
792 bool "IMX serial port support"
793 depends on ARM && (ARCH_IMX || ARCH_MXC)
796 If you have a machine based on a Motorola IMX CPU you
797 can enable its onboard serial port by enabling this option.
799 config SERIAL_IMX_CONSOLE
800 bool "Console on IMX serial port"
801 depends on SERIAL_IMX
802 select SERIAL_CORE_CONSOLE
804 If you have enabled the serial port on the Motorola IMX
805 CPU you can make it the console by answering Y to this option.
807 Even if you say Y here, the currently visible virtual console
808 (/dev/tty0) will still be used as the system console by default, but
809 you can alter that using a kernel command line option such as
810 "console=ttySA0". (Try "man bootparam" or see the documentation of
811 your boot loader (lilo or loadlin) about how to pass options to the
812 kernel at boot time.)
814 config SERIAL_UARTLITE
815 tristate "Xilinx uartlite serial port support"
819 Say Y here if you want to use the Xilinx uartlite serial controller.
821 To compile this driver as a module, choose M here: the
822 module will be called uartlite.ko.
824 config SERIAL_UARTLITE_CONSOLE
825 bool "Support for console on Xilinx uartlite serial port"
826 depends on SERIAL_UARTLITE=y
827 select SERIAL_CORE_CONSOLE
829 Say Y here if you wish to use a Xilinx uartlite as the system
830 console (the system console is the device which receives all kernel
831 messages and warnings and which allows logins in single user mode).
833 config SERIAL_SUNCORE
837 select SERIAL_CORE_CONSOLE
840 config SERIAL_SUNZILOG
841 tristate "Sun Zilog8530 serial support"
844 This driver supports the Zilog8530 serial ports found on many Sparc
845 systems. Say Y or M if you want to be able to these serial ports.
847 config SERIAL_SUNZILOG_CONSOLE
848 bool "Console on Sun Zilog8530 serial port"
849 depends on SERIAL_SUNZILOG=y
851 If you would like to be able to use the Zilog8530 serial port
852 on your Sparc system as the console, you can do so by answering
856 tristate "Sun SU serial support"
857 depends on SPARC && PCI
859 This driver supports the 8250 serial ports that run the keyboard and
860 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
861 to these serial ports.
863 config SERIAL_SUNSU_CONSOLE
864 bool "Console on Sun SU serial port"
865 depends on SERIAL_SUNSU=y
867 If you would like to be able to use the SU serial port
868 on your Sparc system as the console, you can do so by answering
872 tristate "Serial MUX support"
877 Saying Y here will enable the hardware MUX serial driver for
878 the Nova, K class systems and D class with a 'remote control card'.
879 The hardware MUX is not 8250/16550 compatible therefore the
880 /dev/ttyB0 device is shared between the Serial MUX and the PDC
881 software console. The following steps need to be completed to use
884 1. create the device entry (mknod /dev/ttyB0 c 11 0)
885 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
886 3. Add device ttyB0 to /etc/securetty (if you want to log on as
887 root on this console.)
888 4. Change the kernel command console parameter to: console=ttyB0
890 config SERIAL_MUX_CONSOLE
891 bool "Support for console on serial MUX"
892 depends on SERIAL_MUX=y
893 select SERIAL_CORE_CONSOLE
897 bool "PDC software console support"
898 depends on PARISC && !SERIAL_MUX && VT
901 Saying Y here will enable the software based PDC console to be
902 used as the system console. This is useful for machines in
903 which the hardware based console has not been written yet. The
904 following steps must be competed to use the PDC console:
906 1. create the device entry (mknod /dev/ttyB0 c 11 0)
907 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
908 3. Add device ttyB0 to /etc/securetty (if you want to log on as
909 root on this console.)
910 4. Change the kernel command console parameter to: console=ttyB0
913 tristate "Sun Siemens SAB82532 serial support"
914 depends on SPARC && PCI
916 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
917 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
920 config SERIAL_SUNSAB_CONSOLE
921 bool "Console on Sun Siemens SAB82532 serial port"
922 depends on SERIAL_SUNSAB=y
924 If you would like to be able to use the SAB82532 serial port
925 on your Sparc system as the console, you can do so by answering
929 bool "Sun4v Hypervisor Console support"
932 This driver supports the console device found on SUN4V Sparc
933 systems. Say Y if you want to be able to use this device.
935 config SERIAL_IP22_ZILOG
936 tristate "SGI Zilog8530 serial support"
937 depends on SGI_HAS_ZILOG
940 This driver supports the Zilog8530 serial ports found on SGI
941 systems. Say Y or M if you want to be able to these serial ports.
943 config SERIAL_IP22_ZILOG_CONSOLE
944 bool "Console on SGI Zilog8530 serial port"
945 depends on SERIAL_IP22_ZILOG=y
946 select SERIAL_CORE_CONSOLE
949 bool "NEC V850E on-chip UART support"
950 depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1
956 depends on V850E_UART && V850E_ME2
959 config V850E_UART_CONSOLE
960 bool "Use NEC V850E on-chip UART for console"
961 depends on V850E_UART
962 select SERIAL_CORE_CONSOLE
965 tristate "SuperH SCI(F) serial port support"
966 depends on SUPERH || H8300
969 config SERIAL_SH_SCI_NR_UARTS
970 int "Maximum number of SCI(F) serial ports"
971 depends on SERIAL_SH_SCI
974 config SERIAL_SH_SCI_CONSOLE
975 bool "Support for console on SuperH SCI(F)"
976 depends on SERIAL_SH_SCI=y
977 select SERIAL_CORE_CONSOLE
979 config SERIAL_PNX8XXX
980 bool "Enable PNX8XXX SoCs' UART Support"
981 depends on MIPS && SOC_PNX8550
984 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
985 and you want to use serial ports, say Y. Otherwise, say N.
987 config SERIAL_PNX8XXX_CONSOLE
988 bool "Enable PNX8XX0 serial console"
989 depends on SERIAL_PNX8XXX
990 select SERIAL_CORE_CONSOLE
992 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
993 and you want to use serial console, say Y. Otherwise, say N.
998 config SERIAL_CORE_CONSOLE
1005 bool "68328 serial support"
1006 depends on M68328 || M68EZ328 || M68VZ328
1008 This driver supports the built-in serial port of the Motorola 68328
1009 (standard, EZ and VZ varieties).
1011 config SERIAL_68328_RTS_CTS
1012 bool "Support RTS/CTS on 68328 serial port"
1013 depends on SERIAL_68328
1015 config SERIAL_COLDFIRE
1016 bool "ColdFire serial support (DEPRECATED)"
1019 This driver supports the built-in serial ports of the Motorola ColdFire
1021 This driver is deprecated because it supports only the old interface
1022 for serial drivers and features like magic keys are not working.
1023 Please switch to the new style driver because this driver will be
1027 bool "Coldfire serial support (new style driver)"
1031 This new serial driver supports the Freescale Coldfire serial ports
1032 using the new serial driver subsystem.
1034 config SERIAL_MCF_BAUDRATE
1035 int "Default baudrate for Coldfire serial ports"
1036 depends on SERIAL_MCF
1039 This setting lets you define what the default baudrate is for the
1040 ColdFire serial ports. The usual default varies from board to board,
1041 and this setting is a way of catering for that.
1043 config SERIAL_MCF_CONSOLE
1044 bool "Coldfire serial console support"
1045 depends on SERIAL_MCF
1046 select SERIAL_CORE_CONSOLE
1048 Enable a ColdFire internal serial port to be the system console.
1050 config SERIAL_68360_SMC
1051 bool "68360 SMC uart support"
1054 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1056 config SERIAL_68360_SCC
1057 bool "68360 SCC uart support"
1060 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1064 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1067 config SERIAL_PMACZILOG
1068 tristate "PowerMac z85c30 ESCC support"
1069 depends on PPC_OF && PPC_PMAC
1072 This driver supports the Zilog z85C30 serial ports found on
1074 Say Y or M if you want to be able to these serial ports.
1076 config SERIAL_PMACZILOG_TTYS
1077 bool "Use ttySn device nodes for Zilog z85c30"
1078 depends on SERIAL_PMACZILOG
1080 The pmac_zilog driver for the z85C30 chip on many powermacs
1081 historically used the device numbers for /dev/ttySn. The
1082 8250 serial port driver also uses these numbers, which means
1083 the two drivers being unable to coexist; you could not use
1084 both z85C30 and 8250 type ports at the same time.
1086 If this option is not selected, the pmac_zilog driver will
1087 use the device numbers allocated for /dev/ttyPZn. This allows
1088 the pmac_zilog and 8250 drivers to co-exist, but may cause
1089 existing userspace setups to break. Programs that need to
1090 access the built-in serial ports on powermacs will need to
1091 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1093 If you enable this option, any z85c30 ports in the system will
1094 be registered as ttyS0 onwards as in the past, and you will be
1095 unable to use the 8250 module for PCMCIA or other 16C550-style
1098 Say N unless you need the z85c30 ports on your powermac
1099 to appear as /dev/ttySn.
1101 config SERIAL_PMACZILOG_CONSOLE
1102 bool "Console on PowerMac z85c30 serial port"
1103 depends on SERIAL_PMACZILOG=y
1104 select SERIAL_CORE_CONSOLE
1106 If you would like to be able to use the z85c30 serial port
1107 on your PowerMac as the console, you can do so by answering
1110 config SERIAL_LH7A40X
1111 tristate "Sharp LH7A40X embedded UART support"
1112 depends on ARM && ARCH_LH7A40X
1115 This enables support for the three on-board UARTs of the
1116 Sharp LH7A40X series CPUs. Choose Y or M.
1118 config SERIAL_LH7A40X_CONSOLE
1119 bool "Support for console on Sharp LH7A40X serial port"
1120 depends on SERIAL_LH7A40X=y
1121 select SERIAL_CORE_CONSOLE
1123 Say Y here if you wish to use one of the serial ports as the
1124 system console--the system console is the device which
1125 receives all kernel messages and warnings and which allows
1126 logins in single user mode.
1128 Even if you say Y here, the currently visible framebuffer console
1129 (/dev/tty0) will still be used as the default system console, but
1130 you can alter that using a kernel command line, for example
1134 tristate "CPM SCC/SMC serial port support"
1135 depends on CPM2 || 8xx
1138 This driver supports the SCC and SMC serial ports on Motorola
1139 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1141 config SERIAL_CPM_CONSOLE
1142 bool "Support for console on CPM SCC/SMC serial port"
1143 depends on SERIAL_CPM=y
1144 select SERIAL_CORE_CONSOLE
1146 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1147 console (the system console is the device which receives all kernel
1148 messages and warnings and which allows logins in single user mode).
1150 Even if you say Y here, the currently visible framebuffer console
1151 (/dev/tty0) will still be used as the system console by default, but
1152 you can alter that using a kernel command line option such as
1153 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1154 your boot loader (lilo or loadlin) about how to pass options to the
1155 kernel at boot time.)
1157 config SERIAL_CPM_SCC1
1158 bool "Support for SCC1 serial port"
1159 depends on SERIAL_CPM=y
1161 Select this option to use SCC1 as a serial port
1163 config SERIAL_CPM_SCC2
1164 bool "Support for SCC2 serial port"
1165 depends on SERIAL_CPM=y
1167 Select this option to use SCC2 as a serial port
1169 config SERIAL_CPM_SCC3
1170 bool "Support for SCC3 serial port"
1171 depends on SERIAL_CPM=y
1173 Select this option to use SCC3 as a serial port
1175 config SERIAL_CPM_SCC4
1176 bool "Support for SCC4 serial port"
1177 depends on SERIAL_CPM=y
1179 Select this option to use SCC4 as a serial port
1181 config SERIAL_CPM_SMC1
1182 bool "Support for SMC1 serial port"
1183 depends on SERIAL_CPM=y
1185 Select this option to use SMC1 as a serial port
1187 config SERIAL_CPM_SMC2
1188 bool "Support for SMC2 serial port"
1189 depends on SERIAL_CPM=y
1191 Select this option to use SMC2 as a serial port
1193 config SERIAL_SGI_L1_CONSOLE
1194 bool "SGI Altix L1 serial console support"
1195 depends on IA64_GENERIC || IA64_SGI_SN2
1197 select SERIAL_CORE_CONSOLE
1199 If you have an SGI Altix and you would like to use the system
1200 controller serial port as your console (you want this!),
1201 say Y. Otherwise, say N.
1203 config SERIAL_MPC52xx
1204 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
1205 depends on PPC_MPC52xx || PPC_MPC512x
1208 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
1209 like to use them, you must answer Y or M to this option. Note that
1210 for use as console, it must be included in kernel and not as a
1213 config SERIAL_MPC52xx_CONSOLE
1214 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
1215 depends on SERIAL_MPC52xx=y
1216 select SERIAL_CORE_CONSOLE
1218 Select this options if you'd like to use one of the PSC serial port
1219 of the Freescale MPC52xx family as a console.
1221 config SERIAL_MPC52xx_CONSOLE_BAUD
1222 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
1223 depends on SERIAL_MPC52xx_CONSOLE=y
1226 Select the MPC52xx console baud rate.
1227 This value is only used if the bootloader doesn't pass in the
1231 tristate "IBM Multiport Serial Adapter"
1232 depends on PCI && (PPC_ISERIES || PPC_PSERIES)
1236 This driver is for a family of multiport serial adapters
1237 including 2 port RVX, 2 port internal modem, 4 port internal
1238 modem and a split 1 port RVX and 1 port internal modem.
1240 This driver can also be built as a module. If so, the module
1241 will be called icom.
1243 config SERIAL_M32R_SIO
1249 Say Y here if you want to use the M32R serial controller.
1251 config SERIAL_M32R_SIO_CONSOLE
1252 bool "use SIO console"
1253 depends on SERIAL_M32R_SIO=y
1254 select SERIAL_CORE_CONSOLE
1256 Say Y here if you want to support a serial console.
1258 If you use an M3T-M32700UT or an OPSPUT platform,
1259 please say also y for SERIAL_M32R_PLDSIO.
1261 config SERIAL_M32R_PLDSIO
1262 bool "M32R SIO I/F on a PLD"
1263 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1266 Say Y here if you want to use the M32R serial controller
1267 on a PLD (Programmable Logic Device).
1269 If you use an M3T-M32700UT or an OPSPUT platform,
1273 bool "TMPTX39XX/49XX SIO support"
1274 depends on HAS_TXX9_SERIAL
1278 config HAS_TXX9_SERIAL
1281 config SERIAL_TXX9_NR_UARTS
1282 int "Maximum number of TMPTX39XX/49XX SIO ports"
1283 depends on SERIAL_TXX9
1286 config SERIAL_TXX9_CONSOLE
1287 bool "TMPTX39XX/49XX SIO Console support"
1288 depends on SERIAL_TXX9=y
1289 select SERIAL_CORE_CONSOLE
1291 config SERIAL_TXX9_STDSERIAL
1292 bool "TX39XX/49XX SIO act as standard serial"
1293 depends on !SERIAL_8250 && SERIAL_TXX9
1295 config SERIAL_VR41XX
1296 tristate "NEC VR4100 series Serial Interface Unit support"
1297 depends on CPU_VR41XX
1300 If you have a NEC VR4100 series processor and you want to use
1301 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1302 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1304 config SERIAL_VR41XX_CONSOLE
1305 bool "Enable NEC VR4100 series Serial Interface Unit console"
1306 depends on SERIAL_VR41XX=y
1307 select SERIAL_CORE_CONSOLE
1309 If you have a NEC VR4100 series processor and you want to use
1310 a console on a serial port, say Y. Otherwise, say N.
1313 tristate "Digi International NEO PCI Support"
1317 This is a driver for Digi International's Neo series
1318 of cards which provide multiple serial ports. You would need
1319 something like this to connect more than two modems to your Linux
1320 box, for instance in order to become a dial-in server. This driver
1321 supports PCI boards only.
1323 If you have a card like this, say Y here, otherwise say N.
1325 To compile this driver as a module, choose M here: the
1326 module will be called jsm.
1328 config SERIAL_SGI_IOC4
1329 tristate "SGI IOC4 controller serial support"
1330 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1333 If you have an SGI Altix with an IOC4 based Base IO card
1334 and wish to use the serial ports on this card, say Y.
1337 config SERIAL_SGI_IOC3
1338 tristate "SGI Altix IOC3 serial support"
1339 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1342 If you have an SGI Altix with an IOC3 serial card,
1343 say Y or M. Otherwise, say N.
1346 bool "NetX serial port support"
1347 depends on ARM && ARCH_NETX
1350 If you have a machine based on a Hilscher NetX SoC you
1351 can enable its onboard serial port by enabling this option.
1353 To compile this driver as a module, choose M here: the
1354 module will be called netx-serial.
1356 config SERIAL_NETX_CONSOLE
1357 bool "Console on NetX serial port"
1358 depends on SERIAL_NETX
1359 select SERIAL_CORE_CONSOLE
1361 If you have enabled the serial port on the Hilscher NetX SoC
1362 you can make it the console by answering Y to this option.
1364 config SERIAL_OF_PLATFORM
1365 tristate "Serial port on Open Firmware platform bus"
1367 depends on SERIAL_8250
1369 If you have a PowerPC based system that has serial ports
1370 on a platform specific bus, you should enable this option.
1371 Currently, only 8250 compatible ports are supported, but
1372 others can easily be added.
1375 tristate "Freescale QUICC Engine serial port support"
1376 depends on QUICC_ENGINE
1381 This driver supports the QE serial ports on Freescale embedded
1382 PowerPC that contain a QUICC Engine.
1384 config SERIAL_SC26XX
1385 tristate "SC2681/SC2692 serial port support"
1389 This is a driver for the onboard serial ports of
1390 older RM400 machines.
1392 config SERIAL_SC26XX_CONSOLE
1393 bool "Console on SC2681/SC2692 serial port"
1394 depends on SERIAL_SC26XX
1395 select SERIAL_CORE_CONSOLE
1397 Support for Console on SC2681/SC2692 serial ports.
1399 config SERIAL_BFIN_SPORT
1400 tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
1401 depends on BLACKFIN && EXPERIMENTAL
1404 Enble support SPORT emulate UART on Blackfin series.
1406 To compile this driver as a module, choose M here: the
1407 module will be called bfin_sport_uart.
1410 prompt "Baud rate for Blackfin SPORT UART"
1411 depends on SERIAL_BFIN_SPORT
1412 default SERIAL_SPORT_BAUD_RATE_57600
1414 Choose a baud rate for the SPORT UART, other uart settings are
1415 8 bit, 1 stop bit, no parity, no flow control.
1417 config SERIAL_SPORT_BAUD_RATE_115200
1420 config SERIAL_SPORT_BAUD_RATE_57600
1423 config SERIAL_SPORT_BAUD_RATE_38400
1426 config SERIAL_SPORT_BAUD_RATE_19200
1429 config SERIAL_SPORT_BAUD_RATE_9600
1433 config SPORT_BAUD_RATE
1435 depends on SERIAL_BFIN_SPORT
1436 default 115200 if (SERIAL_SPORT_BAUD_RATE_115200)
1437 default 57600 if (SERIAL_SPORT_BAUD_RATE_57600)
1438 default 38400 if (SERIAL_SPORT_BAUD_RATE_38400)
1439 default 19200 if (SERIAL_SPORT_BAUD_RATE_19200)
1440 default 9600 if (SERIAL_SPORT_BAUD_RATE_9600)