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
455 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
456 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
457 provide all of these ports, depending on how the serial port
460 config SERIAL_SAMSUNG_DEBUG
461 bool "Samsung SoC serial debug"
462 depends on SERIAL_SAMSUNG
464 Add support for debugging the serial driver. Since this is
465 generally being used as a console, we use our own output
466 routines that go via the low-level debug printascii()
469 config SERIAL_SAMSUNG_CONSOLE
470 bool "Support for console on Samsung SoC serial port"
471 depends on SERIAL_SAMSUNG=y
472 select SERIAL_CORE_CONSOLE
474 Allow selection of the S3C24XX on-board serial ports for use as
477 Even if you say Y here, the currently visible virtual console
478 (/dev/tty0) will still be used as the system console by default, but
479 you can alter that using a kernel command line option such as
480 "console=ttySACx". (Try "man bootparam" or see the documentation of
481 your boot loader about how to pass options to the kernel at
484 config SERIAL_S3C2400
485 tristate "Samsung S3C2410 Serial port support"
486 depends on ARM && SERIAL_SAMSUNG && CPU_S3C2400
487 default y if CPU_S3C2400
489 Serial port support for the Samsung S3C2400 SoC
491 config SERIAL_S3C2410
492 tristate "Samsung S3C2410 Serial port support"
493 depends on SERIAL_SAMSUNG && CPU_S3C2410
494 default y if CPU_S3C2410
496 Serial port support for the Samsung S3C2410 SoC
498 config SERIAL_S3C2412
499 tristate "Samsung S3C2412/S3C2413 Serial port support"
500 depends on SERIAL_SAMSUNG && CPU_S3C2412
501 default y if CPU_S3C2412
503 Serial port support for the Samsung S3C2412 and S3C2413 SoC
505 config SERIAL_S3C2440
506 tristate "Samsung S3C2440/S3C2442 Serial port support"
507 depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442)
508 default y if CPU_S3C2440
509 default y if CPU_S3C2442
511 Serial port support for the Samsung S3C2440 and S3C2442 SoC
516 bool "DECstation DZ serial driver"
517 depends on MACH_DECSTATION && 32BIT
521 DZ11-family serial controllers for DECstations and VAXstations,
522 including the DC7085, M7814, and M7819.
524 config SERIAL_DZ_CONSOLE
525 bool "Support console on DECstation DZ serial driver"
526 depends on SERIAL_DZ=y
527 select SERIAL_CORE_CONSOLE
530 If you say Y here, it will be possible to use a serial port as the
531 system console (the system console is the device which receives all
532 kernel messages and warnings and which allows logins in single user
535 Note that the firmware uses ttyS3 as the serial console on
536 DECstations that use this driver.
541 tristate "DECstation Z85C30 serial support"
542 depends on MACH_DECSTATION
546 Support for the Zilog 85C350 serial communications controller used
547 for serial ports in newer DECstation systems. These include the
548 DECsystem 5900 and all models of the DECstation and DECsystem 5000
549 systems except from model 200.
551 If unsure, say Y. To compile this driver as a module, choose M here:
552 the module will be called zs.
554 config SERIAL_ZS_CONSOLE
555 bool "Support for console on a DECstation Z85C30 serial port"
556 depends on SERIAL_ZS=y
557 select SERIAL_CORE_CONSOLE
560 If you say Y here, it will be possible to use a serial port as the
561 system console (the system console is the device which receives all
562 kernel messages and warnings and which allows logins in single user
565 Note that the firmware uses ttyS1 as the serial console on the
566 Maxine and ttyS3 on the others using this driver.
571 tristate "DC21285 serial port support"
572 depends on ARM && FOOTBRIDGE
575 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
576 PCI bridge you can enable its onboard serial port by enabling this
579 config SERIAL_21285_CONSOLE
580 bool "Console on DC21285 serial port"
581 depends on SERIAL_21285=y
582 select SERIAL_CORE_CONSOLE
584 If you have enabled the serial port on the 21285 footbridge you can
585 make it the console by answering Y to this option.
587 Even if you say Y here, the currently visible virtual console
588 (/dev/tty0) will still be used as the system console by default, but
589 you can alter that using a kernel command line option such as
590 "console=ttyFB". (Try "man bootparam" or see the documentation of
591 your boot loader (lilo or loadlin) about how to pass options to the
592 kernel at boot time.)
595 bool "Marvell MPSC serial port support"
596 depends on PPC32 && MV64X60
599 Say Y here if you want to use the Marvell MPSC serial controller.
601 config SERIAL_MPSC_CONSOLE
602 bool "Support for console on Marvell MPSC serial port"
603 depends on SERIAL_MPSC
604 select SERIAL_CORE_CONSOLE
606 Say Y here if you want to support a serial console on a Marvell MPSC.
609 bool "PXA serial port support"
610 depends on ARM && ARCH_PXA
613 If you have a machine based on an Intel XScale PXA2xx CPU you
614 can enable its onboard serial ports by enabling this option.
616 config SERIAL_PXA_CONSOLE
617 bool "Console on PXA serial port"
618 depends on SERIAL_PXA
619 select SERIAL_CORE_CONSOLE
621 If you have enabled the serial port on the Intel XScale PXA
622 CPU you can make it the console by answering Y to this option.
624 Even if you say Y here, the currently visible virtual console
625 (/dev/tty0) will still be used as the system console by default, but
626 you can alter that using a kernel command line option such as
627 "console=ttySA0". (Try "man bootparam" or see the documentation of
628 your boot loader (lilo or loadlin) about how to pass options to the
629 kernel at boot time.)
632 bool "SA1100 serial port support"
633 depends on ARM && ARCH_SA1100
636 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
637 can enable its onboard serial port by enabling this option.
638 Please read <file:Documentation/arm/SA1100/serial_UART> for further
641 config SERIAL_SA1100_CONSOLE
642 bool "Console on SA1100 serial port"
643 depends on SERIAL_SA1100
644 select SERIAL_CORE_CONSOLE
646 If you have enabled the serial port on the SA1100/SA1110 StrongARM
647 CPU you can make it the console by answering Y to this option.
649 Even if you say Y here, the currently visible virtual console
650 (/dev/tty0) will still be used as the system console by default, but
651 you can alter that using a kernel command line option such as
652 "console=ttySA0". (Try "man bootparam" or see the documentation of
653 your boot loader (lilo or loadlin) about how to pass options to the
654 kernel at boot time.)
657 tristate "Blackfin serial port support"
660 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
662 Add support for the built-in UARTs on the Blackfin.
664 To compile this driver as a module, choose M here: the
665 module will be called bfin_5xx.
667 config SERIAL_BFIN_CONSOLE
668 bool "Console on Blackfin serial port"
669 depends on SERIAL_BFIN=y
670 select SERIAL_CORE_CONSOLE
674 depends on SERIAL_BFIN
675 default SERIAL_BFIN_DMA
677 This driver supports the built-in serial ports of the Blackfin family
680 config SERIAL_BFIN_DMA
682 depends on !DMA_UNCACHED_NONE && !KGDB_UART
684 This driver works under DMA mode. If this option is selected, the
685 blackfin simple dma driver is also enabled.
687 config SERIAL_BFIN_PIO
690 This driver works under PIO mode.
694 config SERIAL_BFIN_UART0
696 depends on SERIAL_BFIN
700 config BFIN_UART0_CTSRTS
701 bool "Enable UART0 hardware flow control"
702 depends on SERIAL_BFIN_UART0
704 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
709 depends on BFIN_UART0_CTSRTS
712 The default pin is GPIO_GP7.
713 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
717 depends on BFIN_UART0_CTSRTS
720 The default pin is GPIO_GP6.
721 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
723 config SERIAL_BFIN_UART1
725 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
729 config BFIN_UART1_CTSRTS
730 bool "Enable UART1 hardware flow control"
731 depends on SERIAL_BFIN_UART1
733 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
738 depends on BFIN_UART1_CTSRTS && !BF54x
741 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
745 depends on BFIN_UART1_CTSRTS && !BF54x
748 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
750 config SERIAL_BFIN_UART2
752 depends on SERIAL_BFIN && (BF54x)
756 config BFIN_UART2_CTSRTS
757 bool "Enable UART2 hardware flow control"
758 depends on SERIAL_BFIN_UART2
760 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
765 depends on BFIN_UART2_CTSRTS
768 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
772 depends on BFIN_UART2_CTSRTS
775 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
777 config SERIAL_BFIN_UART3
779 depends on SERIAL_BFIN && (BF54x)
783 config BFIN_UART3_CTSRTS
784 bool "Enable UART3 hardware flow control"
785 depends on SERIAL_BFIN_UART3
787 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
791 bool "IMX serial port support"
792 depends on ARM && ARCH_IMX
795 If you have a machine based on a Motorola IMX CPU you
796 can enable its onboard serial port by enabling this option.
798 config SERIAL_IMX_CONSOLE
799 bool "Console on IMX serial port"
800 depends on SERIAL_IMX
801 select SERIAL_CORE_CONSOLE
803 If you have enabled the serial port on the Motorola IMX
804 CPU you can make it the console by answering Y to this option.
806 Even if you say Y here, the currently visible virtual console
807 (/dev/tty0) will still be used as the system console by default, but
808 you can alter that using a kernel command line option such as
809 "console=ttySA0". (Try "man bootparam" or see the documentation of
810 your boot loader (lilo or loadlin) about how to pass options to the
811 kernel at boot time.)
813 config SERIAL_UARTLITE
814 tristate "Xilinx uartlite serial port support"
818 Say Y here if you want to use the Xilinx uartlite serial controller.
820 To compile this driver as a module, choose M here: the
821 module will be called uartlite.ko.
823 config SERIAL_UARTLITE_CONSOLE
824 bool "Support for console on Xilinx uartlite serial port"
825 depends on SERIAL_UARTLITE=y
826 select SERIAL_CORE_CONSOLE
828 Say Y here if you wish to use a Xilinx uartlite as the system
829 console (the system console is the device which receives all kernel
830 messages and warnings and which allows logins in single user mode).
832 config SERIAL_SUNCORE
836 select SERIAL_CORE_CONSOLE
839 config SERIAL_SUNZILOG
840 tristate "Sun Zilog8530 serial support"
843 This driver supports the Zilog8530 serial ports found on many Sparc
844 systems. Say Y or M if you want to be able to these serial ports.
846 config SERIAL_SUNZILOG_CONSOLE
847 bool "Console on Sun Zilog8530 serial port"
848 depends on SERIAL_SUNZILOG=y
850 If you would like to be able to use the Zilog8530 serial port
851 on your Sparc system as the console, you can do so by answering
855 tristate "Sun SU serial support"
856 depends on SPARC && PCI
858 This driver supports the 8250 serial ports that run the keyboard and
859 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
860 to these serial ports.
862 config SERIAL_SUNSU_CONSOLE
863 bool "Console on Sun SU serial port"
864 depends on SERIAL_SUNSU=y
866 If you would like to be able to use the SU serial port
867 on your Sparc system as the console, you can do so by answering
871 tristate "Serial MUX support"
876 Saying Y here will enable the hardware MUX serial driver for
877 the Nova, K class systems and D class with a 'remote control card'.
878 The hardware MUX is not 8250/16550 compatible therefore the
879 /dev/ttyB0 device is shared between the Serial MUX and the PDC
880 software console. The following steps need to be completed to use
883 1. create the device entry (mknod /dev/ttyB0 c 11 0)
884 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
885 3. Add device ttyB0 to /etc/securetty (if you want to log on as
886 root on this console.)
887 4. Change the kernel command console parameter to: console=ttyB0
889 config SERIAL_MUX_CONSOLE
890 bool "Support for console on serial MUX"
891 depends on SERIAL_MUX=y
892 select SERIAL_CORE_CONSOLE
896 bool "PDC software console support"
897 depends on PARISC && !SERIAL_MUX && VT
900 Saying Y here will enable the software based PDC console to be
901 used as the system console. This is useful for machines in
902 which the hardware based console has not been written yet. The
903 following steps must be competed to use the PDC console:
905 1. create the device entry (mknod /dev/ttyB0 c 11 0)
906 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
907 3. Add device ttyB0 to /etc/securetty (if you want to log on as
908 root on this console.)
909 4. Change the kernel command console parameter to: console=ttyB0
912 tristate "Sun Siemens SAB82532 serial support"
913 depends on SPARC && PCI
915 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
916 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
919 config SERIAL_SUNSAB_CONSOLE
920 bool "Console on Sun Siemens SAB82532 serial port"
921 depends on SERIAL_SUNSAB=y
923 If you would like to be able to use the SAB82532 serial port
924 on your Sparc system as the console, you can do so by answering
928 bool "Sun4v Hypervisor Console support"
931 This driver supports the console device found on SUN4V Sparc
932 systems. Say Y if you want to be able to use this device.
934 config SERIAL_IP22_ZILOG
935 tristate "SGI Zilog8530 serial support"
936 depends on SGI_HAS_ZILOG
939 This driver supports the Zilog8530 serial ports found on SGI
940 systems. Say Y or M if you want to be able to these serial ports.
942 config SERIAL_IP22_ZILOG_CONSOLE
943 bool "Console on SGI Zilog8530 serial port"
944 depends on SERIAL_IP22_ZILOG=y
945 select SERIAL_CORE_CONSOLE
948 bool "NEC V850E on-chip UART support"
949 depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1
955 depends on V850E_UART && V850E_ME2
958 config V850E_UART_CONSOLE
959 bool "Use NEC V850E on-chip UART for console"
960 depends on V850E_UART
961 select SERIAL_CORE_CONSOLE
964 tristate "SuperH SCI(F) serial port support"
965 depends on SUPERH || H8300
968 config SERIAL_SH_SCI_NR_UARTS
969 int "Maximum number of SCI(F) serial ports"
970 depends on SERIAL_SH_SCI
973 config SERIAL_SH_SCI_CONSOLE
974 bool "Support for console on SuperH SCI(F)"
975 depends on SERIAL_SH_SCI=y
976 select SERIAL_CORE_CONSOLE
978 config SERIAL_PNX8XXX
979 bool "Enable PNX8XXX SoCs' UART Support"
980 depends on MIPS && SOC_PNX8550
983 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
984 and you want to use serial ports, say Y. Otherwise, say N.
986 config SERIAL_PNX8XXX_CONSOLE
987 bool "Enable PNX8XX0 serial console"
988 depends on SERIAL_PNX8XXX
989 select SERIAL_CORE_CONSOLE
991 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
992 and you want to use serial console, say Y. Otherwise, say N.
997 config SERIAL_CORE_CONSOLE
1004 bool "68328 serial support"
1005 depends on M68328 || M68EZ328 || M68VZ328
1007 This driver supports the built-in serial port of the Motorola 68328
1008 (standard, EZ and VZ varieties).
1010 config SERIAL_68328_RTS_CTS
1011 bool "Support RTS/CTS on 68328 serial port"
1012 depends on SERIAL_68328
1014 config SERIAL_COLDFIRE
1015 bool "ColdFire serial support (DEPRECATED)"
1018 This driver supports the built-in serial ports of the Motorola ColdFire
1020 This driver is deprecated because it supports only the old interface
1021 for serial drivers and features like magic keys are not working.
1022 Please switch to the new style driver because this driver will be
1026 bool "Coldfire serial support (new style driver)"
1030 This new serial driver supports the Freescale Coldfire serial ports
1031 using the new serial driver subsystem.
1033 config SERIAL_MCF_BAUDRATE
1034 int "Default baudrate for Coldfire serial ports"
1035 depends on SERIAL_MCF
1038 This setting lets you define what the default baudrate is for the
1039 ColdFire serial ports. The usual default varies from board to board,
1040 and this setting is a way of catering for that.
1042 config SERIAL_MCF_CONSOLE
1043 bool "Coldfire serial console support"
1044 depends on SERIAL_MCF
1045 select SERIAL_CORE_CONSOLE
1047 Enable a ColdFire internal serial port to be the system console.
1049 config SERIAL_68360_SMC
1050 bool "68360 SMC uart support"
1053 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1055 config SERIAL_68360_SCC
1056 bool "68360 SCC uart support"
1059 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1063 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1066 config SERIAL_PMACZILOG
1067 tristate "PowerMac z85c30 ESCC support"
1068 depends on PPC_OF && PPC_PMAC
1071 This driver supports the Zilog z85C30 serial ports found on
1073 Say Y or M if you want to be able to these serial ports.
1075 config SERIAL_PMACZILOG_TTYS
1076 bool "Use ttySn device nodes for Zilog z85c30"
1077 depends on SERIAL_PMACZILOG
1079 The pmac_zilog driver for the z85C30 chip on many powermacs
1080 historically used the device numbers for /dev/ttySn. The
1081 8250 serial port driver also uses these numbers, which means
1082 the two drivers being unable to coexist; you could not use
1083 both z85C30 and 8250 type ports at the same time.
1085 If this option is not selected, the pmac_zilog driver will
1086 use the device numbers allocated for /dev/ttyPZn. This allows
1087 the pmac_zilog and 8250 drivers to co-exist, but may cause
1088 existing userspace setups to break. Programs that need to
1089 access the built-in serial ports on powermacs will need to
1090 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1092 If you enable this option, any z85c30 ports in the system will
1093 be registered as ttyS0 onwards as in the past, and you will be
1094 unable to use the 8250 module for PCMCIA or other 16C550-style
1097 Say N unless you need the z85c30 ports on your powermac
1098 to appear as /dev/ttySn.
1100 config SERIAL_PMACZILOG_CONSOLE
1101 bool "Console on PowerMac z85c30 serial port"
1102 depends on SERIAL_PMACZILOG=y
1103 select SERIAL_CORE_CONSOLE
1105 If you would like to be able to use the z85c30 serial port
1106 on your PowerMac as the console, you can do so by answering
1109 config SERIAL_LH7A40X
1110 tristate "Sharp LH7A40X embedded UART support"
1111 depends on ARM && ARCH_LH7A40X
1114 This enables support for the three on-board UARTs of the
1115 Sharp LH7A40X series CPUs. Choose Y or M.
1117 config SERIAL_LH7A40X_CONSOLE
1118 bool "Support for console on Sharp LH7A40X serial port"
1119 depends on SERIAL_LH7A40X=y
1120 select SERIAL_CORE_CONSOLE
1122 Say Y here if you wish to use one of the serial ports as the
1123 system console--the system console is the device which
1124 receives all kernel messages and warnings and which allows
1125 logins in single user mode.
1127 Even if you say Y here, the currently visible framebuffer console
1128 (/dev/tty0) will still be used as the default system console, but
1129 you can alter that using a kernel command line, for example
1133 tristate "CPM SCC/SMC serial port support"
1134 depends on CPM2 || 8xx
1137 This driver supports the SCC and SMC serial ports on Motorola
1138 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1140 config SERIAL_CPM_CONSOLE
1141 bool "Support for console on CPM SCC/SMC serial port"
1142 depends on SERIAL_CPM=y
1143 select SERIAL_CORE_CONSOLE
1145 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1146 console (the system console is the device which receives all kernel
1147 messages and warnings and which allows logins in single user mode).
1149 Even if you say Y here, the currently visible framebuffer console
1150 (/dev/tty0) will still be used as the system console by default, but
1151 you can alter that using a kernel command line option such as
1152 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1153 your boot loader (lilo or loadlin) about how to pass options to the
1154 kernel at boot time.)
1156 config SERIAL_CPM_SCC1
1157 bool "Support for SCC1 serial port"
1158 depends on SERIAL_CPM=y
1160 Select this option to use SCC1 as a serial port
1162 config SERIAL_CPM_SCC2
1163 bool "Support for SCC2 serial port"
1164 depends on SERIAL_CPM=y
1166 Select this option to use SCC2 as a serial port
1168 config SERIAL_CPM_SCC3
1169 bool "Support for SCC3 serial port"
1170 depends on SERIAL_CPM=y
1172 Select this option to use SCC3 as a serial port
1174 config SERIAL_CPM_SCC4
1175 bool "Support for SCC4 serial port"
1176 depends on SERIAL_CPM=y
1178 Select this option to use SCC4 as a serial port
1180 config SERIAL_CPM_SMC1
1181 bool "Support for SMC1 serial port"
1182 depends on SERIAL_CPM=y
1184 Select this option to use SMC1 as a serial port
1186 config SERIAL_CPM_SMC2
1187 bool "Support for SMC2 serial port"
1188 depends on SERIAL_CPM=y
1190 Select this option to use SMC2 as a serial port
1192 config SERIAL_SGI_L1_CONSOLE
1193 bool "SGI Altix L1 serial console support"
1194 depends on IA64_GENERIC || IA64_SGI_SN2
1196 select SERIAL_CORE_CONSOLE
1198 If you have an SGI Altix and you would like to use the system
1199 controller serial port as your console (you want this!),
1200 say Y. Otherwise, say N.
1202 config SERIAL_MPC52xx
1203 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
1204 depends on PPC_MPC52xx || PPC_MPC512x
1207 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
1208 like to use them, you must answer Y or M to this option. Note that
1209 for use as console, it must be included in kernel and not as a
1212 config SERIAL_MPC52xx_CONSOLE
1213 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
1214 depends on SERIAL_MPC52xx=y
1215 select SERIAL_CORE_CONSOLE
1217 Select this options if you'd like to use one of the PSC serial port
1218 of the Freescale MPC52xx family as a console.
1220 config SERIAL_MPC52xx_CONSOLE_BAUD
1221 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
1222 depends on SERIAL_MPC52xx_CONSOLE=y
1225 Select the MPC52xx console baud rate.
1226 This value is only used if the bootloader doesn't pass in the
1230 tristate "IBM Multiport Serial Adapter"
1231 depends on PCI && (PPC_ISERIES || PPC_PSERIES)
1235 This driver is for a family of multiport serial adapters
1236 including 2 port RVX, 2 port internal modem, 4 port internal
1237 modem and a split 1 port RVX and 1 port internal modem.
1239 This driver can also be built as a module. If so, the module
1240 will be called icom.
1242 config SERIAL_M32R_SIO
1248 Say Y here if you want to use the M32R serial controller.
1250 config SERIAL_M32R_SIO_CONSOLE
1251 bool "use SIO console"
1252 depends on SERIAL_M32R_SIO=y
1253 select SERIAL_CORE_CONSOLE
1255 Say Y here if you want to support a serial console.
1257 If you use an M3T-M32700UT or an OPSPUT platform,
1258 please say also y for SERIAL_M32R_PLDSIO.
1260 config SERIAL_M32R_PLDSIO
1261 bool "M32R SIO I/F on a PLD"
1262 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1265 Say Y here if you want to use the M32R serial controller
1266 on a PLD (Programmable Logic Device).
1268 If you use an M3T-M32700UT or an OPSPUT platform,
1272 bool "TMPTX39XX/49XX SIO support"
1273 depends on HAS_TXX9_SERIAL
1277 config HAS_TXX9_SERIAL
1280 config SERIAL_TXX9_NR_UARTS
1281 int "Maximum number of TMPTX39XX/49XX SIO ports"
1282 depends on SERIAL_TXX9
1285 config SERIAL_TXX9_CONSOLE
1286 bool "TMPTX39XX/49XX SIO Console support"
1287 depends on SERIAL_TXX9=y
1288 select SERIAL_CORE_CONSOLE
1290 config SERIAL_TXX9_STDSERIAL
1291 bool "TX39XX/49XX SIO act as standard serial"
1292 depends on !SERIAL_8250 && SERIAL_TXX9
1294 config SERIAL_VR41XX
1295 tristate "NEC VR4100 series Serial Interface Unit support"
1296 depends on CPU_VR41XX
1299 If you have a NEC VR4100 series processor and you want to use
1300 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1301 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1303 config SERIAL_VR41XX_CONSOLE
1304 bool "Enable NEC VR4100 series Serial Interface Unit console"
1305 depends on SERIAL_VR41XX=y
1306 select SERIAL_CORE_CONSOLE
1308 If you have a NEC VR4100 series processor and you want to use
1309 a console on a serial port, say Y. Otherwise, say N.
1312 tristate "Digi International NEO PCI Support"
1316 This is a driver for Digi International's Neo series
1317 of cards which provide multiple serial ports. You would need
1318 something like this to connect more than two modems to your Linux
1319 box, for instance in order to become a dial-in server. This driver
1320 supports PCI boards only.
1322 If you have a card like this, say Y here, otherwise say N.
1324 To compile this driver as a module, choose M here: the
1325 module will be called jsm.
1327 config SERIAL_SGI_IOC4
1328 tristate "SGI IOC4 controller serial support"
1329 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1332 If you have an SGI Altix with an IOC4 based Base IO card
1333 and wish to use the serial ports on this card, say Y.
1336 config SERIAL_SGI_IOC3
1337 tristate "SGI Altix IOC3 serial support"
1338 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1341 If you have an SGI Altix with an IOC3 serial card,
1342 say Y or M. Otherwise, say N.
1345 bool "NetX serial port support"
1346 depends on ARM && ARCH_NETX
1349 If you have a machine based on a Hilscher NetX SoC you
1350 can enable its onboard serial port by enabling this option.
1352 To compile this driver as a module, choose M here: the
1353 module will be called netx-serial.
1355 config SERIAL_NETX_CONSOLE
1356 bool "Console on NetX serial port"
1357 depends on SERIAL_NETX
1358 select SERIAL_CORE_CONSOLE
1360 If you have enabled the serial port on the Hilscher NetX SoC
1361 you can make it the console by answering Y to this option.
1363 config SERIAL_OF_PLATFORM
1364 tristate "Serial port on Open Firmware platform bus"
1366 depends on SERIAL_8250
1368 If you have a PowerPC based system that has serial ports
1369 on a platform specific bus, you should enable this option.
1370 Currently, only 8250 compatible ports are supported, but
1371 others can easily be added.
1374 tristate "Freescale QUICC Engine serial port support"
1375 depends on QUICC_ENGINE
1380 This driver supports the QE serial ports on Freescale embedded
1381 PowerPC that contain a QUICC Engine.
1383 config SERIAL_SC26XX
1384 tristate "SC2681/SC2692 serial port support"
1388 This is a driver for the onboard serial ports of
1389 older RM400 machines.
1391 config SERIAL_SC26XX_CONSOLE
1392 bool "Console on SC2681/SC2692 serial port"
1393 depends on SERIAL_SC26XX
1394 select SERIAL_CORE_CONSOLE
1396 Support for Console on SC2681/SC2692 serial ports.
1398 config SERIAL_BFIN_SPORT
1399 tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
1400 depends on BLACKFIN && EXPERIMENTAL
1403 Enble support SPORT emulate UART on Blackfin series.
1405 To compile this driver as a module, choose M here: the
1406 module will be called bfin_sport_uart.
1409 prompt "Baud rate for Blackfin SPORT UART"
1410 depends on SERIAL_BFIN_SPORT
1411 default SERIAL_SPORT_BAUD_RATE_57600
1413 Choose a baud rate for the SPORT UART, other uart settings are
1414 8 bit, 1 stop bit, no parity, no flow control.
1416 config SERIAL_SPORT_BAUD_RATE_115200
1419 config SERIAL_SPORT_BAUD_RATE_57600
1422 config SERIAL_SPORT_BAUD_RATE_38400
1425 config SERIAL_SPORT_BAUD_RATE_19200
1428 config SERIAL_SPORT_BAUD_RATE_9600
1432 config SPORT_BAUD_RATE
1434 depends on SERIAL_BFIN_SPORT
1435 default 115200 if (SERIAL_SPORT_BAUD_RATE_115200)
1436 default 57600 if (SERIAL_SPORT_BAUD_RATE_57600)
1437 default 38400 if (SERIAL_SPORT_BAUD_RATE_38400)
1438 default 19200 if (SERIAL_SPORT_BAUD_RATE_19200)
1439 default 9600 if (SERIAL_SPORT_BAUD_RATE_9600)