2 # Serial device configuration
9 # The new 8250/16550 serial drivers
11 tristate "8250/16550 and compatible serial support"
14 This selects whether you want to include the driver for the standard
15 serial ports. The standard answer is Y. People who might say N
16 here are those that are setting up dedicated Ethernet WWW/FTP
17 servers, or users that have one of the various bus mice instead of a
18 serial mouse and don't intend to use their machine's standard serial
19 port for anything. (Note that the Cyclades and Stallion multi
20 serial port drivers do not need this driver built in for them to
23 To compile this driver as a module, choose M here: the
24 module will be called 8250.
25 [WARNING: Do not compile this driver as a module if you are using
26 non-standard serial ports, since the configuration information will
27 be lost when the driver is unloaded. This limitation may be lifted
30 BTW1: If you have a mouseman serial mouse which is not recognized by
31 the X window system, try running gpm first.
33 BTW2: If you intend to use a software modem (also called Winmodem)
34 under Linux, forget it. These modems are crippled and require
35 proprietary drivers which are only available under Windows.
37 Most people will say Y or M here, so that they can use serial mice,
38 modems and similar devices connecting to the standard serial ports.
40 config SERIAL_8250_CONSOLE
41 bool "Console on 8250/16550 and compatible serial port"
42 depends on SERIAL_8250=y
43 select SERIAL_CORE_CONSOLE
45 If you say Y here, it will be possible to use a serial port as the
46 system console (the system console is the device which receives all
47 kernel messages and warnings and which allows logins in single user
48 mode). This could be useful if some terminal or printer is connected
51 Even if you say Y here, the currently visible virtual console
52 (/dev/tty0) will still be used as the system console by default, but
53 you can alter that using a kernel command line option such as
54 "console=ttyS1". (Try "man bootparam" or see the documentation of
55 your boot loader (grub or lilo or loadlin) about how to pass options
56 to the kernel at boot time.)
58 If you don't have a VGA card installed and you say Y here, the
59 kernel will automatically use the first serial line, /dev/ttyS0, as
62 You can set that using a kernel command line option such as
63 "console=uart8250,io,0x3f8,9600n8"
64 "console=uart8250,mmio,0xff5e0000,115200n8".
65 and it will switch to normal serial console when the corresponding
67 "earlycon=uart8250,io,0x3f8,9600n8"
68 "earlycon=uart8250,mmio,0xff5e0000,115200n8".
69 it will not only setup early console.
73 config FIX_EARLYCON_MEM
78 config SERIAL_8250_GSC
80 depends on SERIAL_8250 && GSC
83 config SERIAL_8250_PCI
84 tristate "8250/16550 PCI device support" if EMBEDDED
85 depends on SERIAL_8250 && PCI
88 This builds standard PCI serial support. You may be able to
89 disable this feature if you only need legacy serial support.
92 config SERIAL_8250_PNP
93 tristate "8250/16550 PNP device support" if EMBEDDED
94 depends on SERIAL_8250 && PNP
97 This builds standard PNP serial support. You may be able to
98 disable this feature if you only need legacy serial support.
100 config SERIAL_8250_HP300
102 depends on SERIAL_8250 && HP300
105 config SERIAL_8250_CS
106 tristate "8250/16550 PCMCIA device support"
107 depends on PCMCIA && SERIAL_8250
109 Say Y here to enable support for 16-bit PCMCIA serial devices,
110 including serial port cards, modems, and the modem functions of
111 multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
112 credit-card size devices often used with laptops.)
114 To compile this driver as a module, choose M here: the
115 module will be called serial_cs.
119 config SERIAL_8250_NR_UARTS
120 int "Maximum number of 8250/16550 serial ports"
121 depends on SERIAL_8250
124 Set this to the number of serial ports you want the driver
125 to support. This includes any ports discovered via ACPI or
126 PCI enumeration and any ports that may be added at run-time
127 via hot-plug, or any ISA multi-port serial cards.
129 config SERIAL_8250_RUNTIME_UARTS
130 int "Number of 8250/16550 serial ports to register at runtime"
131 depends on SERIAL_8250
132 range 0 SERIAL_8250_NR_UARTS
135 Set this to the maximum number of serial ports you want
136 the kernel to register at boot time. This can be overridden
137 with the module parameter "nr_uarts", or boot-time parameter
140 config SERIAL_8250_EXTENDED
141 bool "Extended 8250/16550 serial driver options"
142 depends on SERIAL_8250
144 If you wish to use any non-standard features of the standard "dumb"
145 driver, say Y here. This includes HUB6 support, shared serial
146 interrupts, special multiport support, support for more than the
147 four COM 1/2/3/4 boards, etc.
149 Note that the answer to this question won't directly affect the
150 kernel: saying N will just cause the configurator to skip all
151 the questions about serial driver options. If unsure, say N.
153 config SERIAL_8250_MANY_PORTS
154 bool "Support more than 4 legacy serial ports"
155 depends on SERIAL_8250_EXTENDED && !IA64
157 Say Y here if you have dumb serial boards other than the four
158 standard COM 1/2/3/4 ports. This may happen if you have an AST
159 FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
160 from <http://www.tldp.org/docs.html#howto>), or other custom
161 serial port hardware which acts similar to standard serial port
162 hardware. If you only use the standard COM 1/2/3/4 ports, you can
163 say N here to save some memory. You can also say Y if you have an
164 "intelligent" multiport card such as Cyclades, Digiboards, etc.
167 # Multi-port serial cards
170 config SERIAL_8250_FOURPORT
171 tristate "Support Fourport cards"
172 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
174 Say Y here if you have an AST FourPort serial board.
176 To compile this driver as a module, choose M here: the module
177 will be called 8250_fourport.
179 config SERIAL_8250_ACCENT
180 tristate "Support Accent cards"
181 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
183 Say Y here if you have an Accent Async serial board.
185 To compile this driver as a module, choose M here: the module
186 will be called 8250_accent.
188 config SERIAL_8250_BOCA
189 tristate "Support Boca cards"
190 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
192 Say Y here if you have a Boca serial board. Please read the Boca
193 mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>
195 To compile this driver as a module, choose M here: the module
196 will be called 8250_boca.
198 config SERIAL_8250_EXAR_ST16C554
199 tristate "Support Exar ST16C554/554D Quad UART"
200 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
202 The Uplogix Envoy TU301 uses this Exar Quad UART. If you are
203 tinkering with your Envoy TU301, or have a machine with this UART,
206 To compile this driver as a module, choose M here: the module
207 will be called 8250_exar_st16c554.
209 config SERIAL_8250_HUB6
210 tristate "Support Hub6 cards"
211 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
213 Say Y here if you have a HUB6 serial board.
215 To compile this driver as a module, choose M here: the module
216 will be called 8250_hub6.
218 config SERIAL_8250_SHARE_IRQ
219 bool "Support for sharing serial interrupts"
220 depends on SERIAL_8250_EXTENDED
222 Some serial boards have hardware support which allows multiple dumb
223 serial ports on the same board to share a single IRQ. To enable
224 support for this in the serial driver, say Y here.
226 config SERIAL_8250_DETECT_IRQ
227 bool "Autodetect IRQ on standard ports (unsafe)"
228 depends on SERIAL_8250_EXTENDED
230 Say Y here if you want the kernel to try to guess which IRQ
231 to use for your serial port.
233 This is considered unsafe; it is far better to configure the IRQ in
234 a boot script using the setserial command.
238 config SERIAL_8250_RSA
239 bool "Support RSA serial ports"
240 depends on SERIAL_8250_EXTENDED
242 ::: To be written :::
244 config SERIAL_8250_MCA
245 tristate "Support 8250-type ports on MCA buses"
246 depends on SERIAL_8250 != n && MCA
248 Say Y here if you have a MCA serial ports.
250 To compile this driver as a module, choose M here: the module
251 will be called 8250_mca.
253 config SERIAL_8250_ACORN
254 tristate "Acorn expansion card serial port support"
255 depends on ARCH_ACORN && SERIAL_8250
257 If you have an Atomwide Serial card or Serial Port card for an Acorn
258 system, say Y to this option. The driver can handle 1, 2, or 3 port
259 cards. If unsure, say N.
261 config SERIAL_8250_AU1X00
262 bool "Au1x00 serial port support"
263 depends on SERIAL_8250 != n && SOC_AU1X00
265 If you have an Au1x00 SOC based board and want to use the serial port,
266 say Y to this option. The driver can handle up to 4 serial ports,
267 depending on the SOC. If unsure, say N.
269 config SERIAL_8250_RM9K
270 bool "Support for MIPS RM9xxx integrated serial port"
271 depends on SERIAL_8250 != n && SERIAL_RM9000
272 select SERIAL_8250_SHARE_IRQ
274 Selecting this option will add support for the integrated serial
275 port hardware found on MIPS RM9122 and similar processors.
278 comment "Non-8250 serial port support"
280 config SERIAL_AMBA_PL010
281 tristate "ARM AMBA PL010 serial port support"
282 depends on ARM_AMBA && (BROKEN || !ARCH_VERSATILE)
285 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have
286 an Integrator/AP or Integrator/PP2 platform, or if you have a
287 Cirrus Logic EP93xx CPU, say Y or M here.
291 config SERIAL_AMBA_PL010_CONSOLE
292 bool "Support for console on AMBA serial port"
293 depends on SERIAL_AMBA_PL010=y
294 select SERIAL_CORE_CONSOLE
296 Say Y here if you wish to use an AMBA PrimeCell UART as the system
297 console (the system console is the device which receives all kernel
298 messages and warnings and which allows logins in single user mode).
300 Even if you say Y here, the currently visible framebuffer console
301 (/dev/tty0) will still be used as the system console by default, but
302 you can alter that using a kernel command line option such as
303 "console=ttyAM0". (Try "man bootparam" or see the documentation of
304 your boot loader (lilo or loadlin) about how to pass options to the
305 kernel at boot time.)
307 config SERIAL_AMBA_PL011
308 tristate "ARM AMBA PL011 serial port support"
312 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have
313 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
318 config SERIAL_AMBA_PL011_CONSOLE
319 bool "Support for console on AMBA serial port"
320 depends on SERIAL_AMBA_PL011=y
321 select SERIAL_CORE_CONSOLE
323 Say Y here if you wish to use an AMBA PrimeCell UART as the system
324 console (the system console is the device which receives all kernel
325 messages and warnings and which allows logins in single user mode).
327 Even if you say Y here, the currently visible framebuffer console
328 (/dev/tty0) will still be used as the system console by default, but
329 you can alter that using a kernel command line option such as
330 "console=ttyAMA0". (Try "man bootparam" or see the documentation of
331 your boot loader (lilo or loadlin) about how to pass options to the
332 kernel at boot time.)
334 config SERIAL_SB1250_DUART
335 tristate "BCM1xxx on-chip DUART serial support"
336 depends on SIBYTE_SB1xxx_SOC=y
340 Support for the asynchronous serial interface (DUART) included in
341 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
342 the letter D in DUART stands for "dual", which is how the device
343 is implemented. Depending on the SOC configuration there may be
344 one or more DUARTs available of which all are handled.
346 If unsure, say Y. To compile this driver as a module, choose M here:
347 the module will be called sb1250-duart.
349 config SERIAL_SB1250_DUART_CONSOLE
350 bool "Support for console on a BCM1xxx DUART serial port"
351 depends on SERIAL_SB1250_DUART=y
352 select SERIAL_CORE_CONSOLE
355 If you say Y here, it will be possible to use a serial port as the
356 system console (the system console is the device which receives all
357 kernel messages and warnings and which allows logins in single user
363 bool "AT91 / AT32 on-chip serial port support"
364 depends on (ARM && ARCH_AT91) || AVR32
367 This enables the driver for the on-chip UARTs of the Atmel
368 AT91 and AT32 processors.
370 config SERIAL_ATMEL_CONSOLE
371 bool "Support for console on AT91 / AT32 serial port"
372 depends on SERIAL_ATMEL=y
373 select SERIAL_CORE_CONSOLE
375 Say Y here if you wish to use an on-chip UART on a Atmel
376 AT91 or AT32 processor as the system console (the system
377 console is the device which receives all kernel messages and
378 warnings and which allows logins in single user mode).
380 config SERIAL_ATMEL_PDC
381 bool "Support DMA transfers on AT91 / AT32 serial port"
382 depends on SERIAL_ATMEL
385 Say Y here if you wish to use the PDC to do DMA transfers to
386 and from the Atmel AT91 / AT32 serial port. In order to
387 actually use DMA transfers, make sure that the use_dma_tx
388 and use_dma_rx members in the atmel_uart_data struct is set
389 appropriately for each port.
391 Note that break and error handling currently doesn't work
392 properly when DMA is enabled. Make sure that ports where
393 this matters don't use DMA.
395 config SERIAL_ATMEL_TTYAT
396 bool "Install as device ttyATn instead of ttySn"
397 depends on SERIAL_ATMEL=y
399 Say Y here if you wish to have the internal AT91 / AT32 UARTs
400 appear as /dev/ttyATn (major 204, minor starting at 154)
401 instead of the normal /dev/ttySn (major 4, minor starting at
402 64). This is necessary if you also want other UARTs, such as
403 external 8250/16C550 compatible UARTs.
404 The ttySn nodes are legally reserved for the 8250 serial driver
405 but are often misused by other serial drivers.
407 To use this, you should create suitable ttyATn device nodes in
408 /dev/, and pass "console=ttyATn" to the kernel.
410 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
413 bool "Micrel KS8695 (Centaur) serial port support"
414 depends on ARCH_KS8695
417 This selects the Micrel Centaur KS8695 UART. Say Y here.
419 config SERIAL_KS8695_CONSOLE
420 bool "Support for console on KS8695 (Centaur) serial port"
421 depends on SERIAL_KS8695=y
422 select SERIAL_CORE_CONSOLE
424 Say Y here if you wish to use a KS8695 (Centaur) UART as the
425 system console (the system console is the device which
426 receives all kernel messages and warnings and which allows
427 logins in single user mode).
429 config SERIAL_CLPS711X
430 tristate "CLPS711X serial port support"
431 depends on ARM && ARCH_CLPS711X
434 ::: To be written :::
436 config SERIAL_CLPS711X_CONSOLE
437 bool "Support for console on CLPS711X serial port"
438 depends on SERIAL_CLPS711X=y
439 select SERIAL_CORE_CONSOLE
441 Even if you say Y here, the currently visible virtual console
442 (/dev/tty0) will still be used as the system console by default, but
443 you can alter that using a kernel command line option such as
444 "console=ttyCL1". (Try "man bootparam" or see the documentation of
445 your boot loader (lilo or loadlin) about how to pass options to the
446 kernel at boot time.)
448 config SERIAL_SAMSUNG
449 tristate "Samsung SoC serial support"
450 depends on ARM && PLAT_S3C24XX
453 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
454 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
455 provide all of these ports, depending on how the serial port
458 config SERIAL_SAMSUNG_DEBUG
459 bool "Samsung SoC serial debug"
460 depends on SERIAL_SAMSUNG && DEBUG_LL
462 Add support for debugging the serial driver. Since this is
463 generally being used as a console, we use our own output
464 routines that go via the low-level debug printascii()
467 config SERIAL_SAMSUNG_CONSOLE
468 bool "Support for console on Samsung SoC serial port"
469 depends on SERIAL_SAMSUNG=y
470 select SERIAL_CORE_CONSOLE
472 Allow selection of the S3C24XX on-board serial ports for use as
475 Even if you say Y here, the currently visible virtual console
476 (/dev/tty0) will still be used as the system console by default, but
477 you can alter that using a kernel command line option such as
478 "console=ttySACx". (Try "man bootparam" or see the documentation of
479 your boot loader about how to pass options to the kernel at
482 config SERIAL_S3C2400
483 tristate "Samsung S3C2410 Serial port support"
484 depends on ARM && SERIAL_SAMSUNG && CPU_S3C2400
485 default y if CPU_S3C2400
487 Serial port support for the Samsung S3C2400 SoC
489 config SERIAL_S3C2410
490 tristate "Samsung S3C2410 Serial port support"
491 depends on SERIAL_SAMSUNG && CPU_S3C2410
492 default y if CPU_S3C2410
494 Serial port support for the Samsung S3C2410 SoC
496 config SERIAL_S3C2412
497 tristate "Samsung S3C2412/S3C2413 Serial port support"
498 depends on SERIAL_SAMSUNG && CPU_S3C2412
499 default y if CPU_S3C2412
501 Serial port support for the Samsung S3C2412 and S3C2413 SoC
503 config SERIAL_S3C2440
504 tristate "Samsung S3C2440/S3C2442 Serial port support"
505 depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442)
506 default y if CPU_S3C2440
507 default y if CPU_S3C2442
509 Serial port support for the Samsung S3C2440 and S3C2442 SoC
511 config SERIAL_S3C24A0
512 tristate "Samsung S3C24A0 Serial port support"
513 depends on SERIAL_SAMSUNG && CPU_S3C24A0
514 default y if CPU_S3C24A0
516 Serial port support for the Samsung S3C24A0 SoC
519 bool "DECstation DZ serial driver"
520 depends on MACH_DECSTATION && 32BIT
524 DZ11-family serial controllers for DECstations and VAXstations,
525 including the DC7085, M7814, and M7819.
527 config SERIAL_DZ_CONSOLE
528 bool "Support console on DECstation DZ serial driver"
529 depends on SERIAL_DZ=y
530 select SERIAL_CORE_CONSOLE
533 If you say Y here, it will be possible to use a serial port as the
534 system console (the system console is the device which receives all
535 kernel messages and warnings and which allows logins in single user
538 Note that the firmware uses ttyS3 as the serial console on
539 DECstations that use this driver.
544 tristate "DECstation Z85C30 serial support"
545 depends on MACH_DECSTATION
549 Support for the Zilog 85C350 serial communications controller used
550 for serial ports in newer DECstation systems. These include the
551 DECsystem 5900 and all models of the DECstation and DECsystem 5000
552 systems except from model 200.
554 If unsure, say Y. To compile this driver as a module, choose M here:
555 the module will be called zs.
557 config SERIAL_ZS_CONSOLE
558 bool "Support for console on a DECstation Z85C30 serial port"
559 depends on SERIAL_ZS=y
560 select SERIAL_CORE_CONSOLE
563 If you say Y here, it will be possible to use a serial port as the
564 system console (the system console is the device which receives all
565 kernel messages and warnings and which allows logins in single user
568 Note that the firmware uses ttyS1 as the serial console on the
569 Maxine and ttyS3 on the others using this driver.
574 tristate "DC21285 serial port support"
575 depends on ARM && FOOTBRIDGE
578 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
579 PCI bridge you can enable its onboard serial port by enabling this
582 config SERIAL_21285_CONSOLE
583 bool "Console on DC21285 serial port"
584 depends on SERIAL_21285=y
585 select SERIAL_CORE_CONSOLE
587 If you have enabled the serial port on the 21285 footbridge you can
588 make it the console by answering Y to this option.
590 Even if you say Y here, the currently visible virtual console
591 (/dev/tty0) will still be used as the system console by default, but
592 you can alter that using a kernel command line option such as
593 "console=ttyFB". (Try "man bootparam" or see the documentation of
594 your boot loader (lilo or loadlin) about how to pass options to the
595 kernel at boot time.)
598 bool "Marvell MPSC serial port support"
599 depends on PPC32 && MV64X60
602 Say Y here if you want to use the Marvell MPSC serial controller.
604 config SERIAL_MPSC_CONSOLE
605 bool "Support for console on Marvell MPSC serial port"
606 depends on SERIAL_MPSC
607 select SERIAL_CORE_CONSOLE
609 Say Y here if you want to support a serial console on a Marvell MPSC.
612 bool "PXA serial port support"
613 depends on ARM && ARCH_PXA
616 If you have a machine based on an Intel XScale PXA2xx CPU you
617 can enable its onboard serial ports by enabling this option.
619 config SERIAL_PXA_CONSOLE
620 bool "Console on PXA serial port"
621 depends on SERIAL_PXA
622 select SERIAL_CORE_CONSOLE
624 If you have enabled the serial port on the Intel XScale PXA
625 CPU you can make it the console by answering Y to this option.
627 Even if you say Y here, the currently visible virtual console
628 (/dev/tty0) will still be used as the system console by default, but
629 you can alter that using a kernel command line option such as
630 "console=ttySA0". (Try "man bootparam" or see the documentation of
631 your boot loader (lilo or loadlin) about how to pass options to the
632 kernel at boot time.)
635 bool "SA1100 serial port support"
636 depends on ARM && ARCH_SA1100
639 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
640 can enable its onboard serial port by enabling this option.
641 Please read <file:Documentation/arm/SA1100/serial_UART> for further
644 config SERIAL_SA1100_CONSOLE
645 bool "Console on SA1100 serial port"
646 depends on SERIAL_SA1100
647 select SERIAL_CORE_CONSOLE
649 If you have enabled the serial port on the SA1100/SA1110 StrongARM
650 CPU you can make it the console by answering Y to this option.
652 Even if you say Y here, the currently visible virtual console
653 (/dev/tty0) will still be used as the system console by default, but
654 you can alter that using a kernel command line option such as
655 "console=ttySA0". (Try "man bootparam" or see the documentation of
656 your boot loader (lilo or loadlin) about how to pass options to the
657 kernel at boot time.)
660 tristate "Blackfin serial port support"
663 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
665 Add support for the built-in UARTs on the Blackfin.
667 To compile this driver as a module, choose M here: the
668 module will be called bfin_5xx.
670 config SERIAL_BFIN_CONSOLE
671 bool "Console on Blackfin serial port"
672 depends on SERIAL_BFIN=y
673 select SERIAL_CORE_CONSOLE
677 depends on SERIAL_BFIN
678 default SERIAL_BFIN_DMA
680 This driver supports the built-in serial ports of the Blackfin family
683 config SERIAL_BFIN_DMA
685 depends on !DMA_UNCACHED_NONE && !KGDB_UART
687 This driver works under DMA mode. If this option is selected, the
688 blackfin simple dma driver is also enabled.
690 config SERIAL_BFIN_PIO
693 This driver works under PIO mode.
697 config SERIAL_BFIN_UART0
699 depends on SERIAL_BFIN
703 config BFIN_UART0_CTSRTS
704 bool "Enable UART0 hardware flow control"
705 depends on SERIAL_BFIN_UART0
707 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
712 depends on BFIN_UART0_CTSRTS
715 The default pin is GPIO_GP7.
716 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
720 depends on BFIN_UART0_CTSRTS
723 The default pin is GPIO_GP6.
724 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
726 config SERIAL_BFIN_UART1
728 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
732 config BFIN_UART1_CTSRTS
733 bool "Enable UART1 hardware flow control"
734 depends on SERIAL_BFIN_UART1
736 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
741 depends on BFIN_UART1_CTSRTS && !BF54x
744 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
748 depends on BFIN_UART1_CTSRTS && !BF54x
751 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
753 config SERIAL_BFIN_UART2
755 depends on SERIAL_BFIN && (BF54x)
759 config BFIN_UART2_CTSRTS
760 bool "Enable UART2 hardware flow control"
761 depends on SERIAL_BFIN_UART2
763 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
768 depends on BFIN_UART2_CTSRTS
771 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
775 depends on BFIN_UART2_CTSRTS
778 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
780 config SERIAL_BFIN_UART3
782 depends on SERIAL_BFIN && (BF54x)
786 config BFIN_UART3_CTSRTS
787 bool "Enable UART3 hardware flow control"
788 depends on SERIAL_BFIN_UART3
790 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
794 bool "IMX serial port support"
795 depends on ARM && (ARCH_IMX || ARCH_MXC)
798 If you have a machine based on a Motorola IMX CPU you
799 can enable its onboard serial port by enabling this option.
801 config SERIAL_IMX_CONSOLE
802 bool "Console on IMX serial port"
803 depends on SERIAL_IMX
804 select SERIAL_CORE_CONSOLE
806 If you have enabled the serial port on the Motorola IMX
807 CPU you can make it the console by answering Y to this option.
809 Even if you say Y here, the currently visible virtual console
810 (/dev/tty0) will still be used as the system console by default, but
811 you can alter that using a kernel command line option such as
812 "console=ttySA0". (Try "man bootparam" or see the documentation of
813 your boot loader (lilo or loadlin) about how to pass options to the
814 kernel at boot time.)
816 config SERIAL_UARTLITE
817 tristate "Xilinx uartlite serial port support"
821 Say Y here if you want to use the Xilinx uartlite serial controller.
823 To compile this driver as a module, choose M here: the
824 module will be called uartlite.ko.
826 config SERIAL_UARTLITE_CONSOLE
827 bool "Support for console on Xilinx uartlite serial port"
828 depends on SERIAL_UARTLITE=y
829 select SERIAL_CORE_CONSOLE
831 Say Y here if you wish to use a Xilinx uartlite as the system
832 console (the system console is the device which receives all kernel
833 messages and warnings and which allows logins in single user mode).
835 config SERIAL_SUNCORE
839 select SERIAL_CORE_CONSOLE
842 config SERIAL_SUNZILOG
843 tristate "Sun Zilog8530 serial support"
846 This driver supports the Zilog8530 serial ports found on many Sparc
847 systems. Say Y or M if you want to be able to these serial ports.
849 config SERIAL_SUNZILOG_CONSOLE
850 bool "Console on Sun Zilog8530 serial port"
851 depends on SERIAL_SUNZILOG=y
853 If you would like to be able to use the Zilog8530 serial port
854 on your Sparc system as the console, you can do so by answering
858 tristate "Sun SU serial support"
859 depends on SPARC && PCI
861 This driver supports the 8250 serial ports that run the keyboard and
862 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
863 to these serial ports.
865 config SERIAL_SUNSU_CONSOLE
866 bool "Console on Sun SU serial port"
867 depends on SERIAL_SUNSU=y
869 If you would like to be able to use the SU serial port
870 on your Sparc system as the console, you can do so by answering
874 tristate "Serial MUX support"
879 Saying Y here will enable the hardware MUX serial driver for
880 the Nova, K class systems and D class with a 'remote control card'.
881 The hardware MUX is not 8250/16550 compatible therefore the
882 /dev/ttyB0 device is shared between the Serial MUX and the PDC
883 software console. The following steps need to be completed to use
886 1. create the device entry (mknod /dev/ttyB0 c 11 0)
887 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
888 3. Add device ttyB0 to /etc/securetty (if you want to log on as
889 root on this console.)
890 4. Change the kernel command console parameter to: console=ttyB0
892 config SERIAL_MUX_CONSOLE
893 bool "Support for console on serial MUX"
894 depends on SERIAL_MUX=y
895 select SERIAL_CORE_CONSOLE
899 bool "PDC software console support"
900 depends on PARISC && !SERIAL_MUX && VT
903 Saying Y here will enable the software based PDC console to be
904 used as the system console. This is useful for machines in
905 which the hardware based console has not been written yet. The
906 following steps must be competed to use the PDC console:
908 1. create the device entry (mknod /dev/ttyB0 c 11 0)
909 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
910 3. Add device ttyB0 to /etc/securetty (if you want to log on as
911 root on this console.)
912 4. Change the kernel command console parameter to: console=ttyB0
915 tristate "Sun Siemens SAB82532 serial support"
916 depends on SPARC && PCI
918 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
919 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
922 config SERIAL_SUNSAB_CONSOLE
923 bool "Console on Sun Siemens SAB82532 serial port"
924 depends on SERIAL_SUNSAB=y
926 If you would like to be able to use the SAB82532 serial port
927 on your Sparc system as the console, you can do so by answering
931 bool "Sun4v Hypervisor Console support"
934 This driver supports the console device found on SUN4V Sparc
935 systems. Say Y if you want to be able to use this device.
937 config SERIAL_IP22_ZILOG
938 tristate "SGI Zilog8530 serial support"
939 depends on SGI_HAS_ZILOG
942 This driver supports the Zilog8530 serial ports found on SGI
943 systems. Say Y or M if you want to be able to these serial ports.
945 config SERIAL_IP22_ZILOG_CONSOLE
946 bool "Console on SGI Zilog8530 serial port"
947 depends on SERIAL_IP22_ZILOG=y
948 select SERIAL_CORE_CONSOLE
951 tristate "SuperH SCI(F) serial port support"
952 depends on SUPERH || H8300
955 config SERIAL_SH_SCI_NR_UARTS
956 int "Maximum number of SCI(F) serial ports"
957 depends on SERIAL_SH_SCI
960 config SERIAL_SH_SCI_CONSOLE
961 bool "Support for console on SuperH SCI(F)"
962 depends on SERIAL_SH_SCI=y
963 select SERIAL_CORE_CONSOLE
965 config SERIAL_PNX8XXX
966 bool "Enable PNX8XXX SoCs' UART Support"
967 depends on MIPS && SOC_PNX8550
970 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
971 and you want to use serial ports, say Y. Otherwise, say N.
973 config SERIAL_PNX8XXX_CONSOLE
974 bool "Enable PNX8XX0 serial console"
975 depends on SERIAL_PNX8XXX
976 select SERIAL_CORE_CONSOLE
978 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
979 and you want to use serial console, say Y. Otherwise, say N.
984 config SERIAL_CORE_CONSOLE
991 bool "68328 serial support"
992 depends on M68328 || M68EZ328 || M68VZ328
994 This driver supports the built-in serial port of the Motorola 68328
995 (standard, EZ and VZ varieties).
997 config SERIAL_68328_RTS_CTS
998 bool "Support RTS/CTS on 68328 serial port"
999 depends on SERIAL_68328
1002 bool "Coldfire serial support"
1006 This serial driver supports the Freescale Coldfire serial ports.
1008 config SERIAL_MCF_BAUDRATE
1009 int "Default baudrate for Coldfire serial ports"
1010 depends on SERIAL_MCF
1013 This setting lets you define what the default baudrate is for the
1014 ColdFire serial ports. The usual default varies from board to board,
1015 and this setting is a way of catering for that.
1017 config SERIAL_MCF_CONSOLE
1018 bool "Coldfire serial console support"
1019 depends on SERIAL_MCF
1020 select SERIAL_CORE_CONSOLE
1022 Enable a ColdFire internal serial port to be the system console.
1024 config SERIAL_68360_SMC
1025 bool "68360 SMC uart support"
1028 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1030 config SERIAL_68360_SCC
1031 bool "68360 SCC uart support"
1034 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1038 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1041 config SERIAL_PMACZILOG
1042 tristate "PowerMac z85c30 ESCC support"
1043 depends on PPC_OF && PPC_PMAC
1046 This driver supports the Zilog z85C30 serial ports found on
1048 Say Y or M if you want to be able to these serial ports.
1050 config SERIAL_PMACZILOG_TTYS
1051 bool "Use ttySn device nodes for Zilog z85c30"
1052 depends on SERIAL_PMACZILOG
1054 The pmac_zilog driver for the z85C30 chip on many powermacs
1055 historically used the device numbers for /dev/ttySn. The
1056 8250 serial port driver also uses these numbers, which means
1057 the two drivers being unable to coexist; you could not use
1058 both z85C30 and 8250 type ports at the same time.
1060 If this option is not selected, the pmac_zilog driver will
1061 use the device numbers allocated for /dev/ttyPZn. This allows
1062 the pmac_zilog and 8250 drivers to co-exist, but may cause
1063 existing userspace setups to break. Programs that need to
1064 access the built-in serial ports on powermacs will need to
1065 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1067 If you enable this option, any z85c30 ports in the system will
1068 be registered as ttyS0 onwards as in the past, and you will be
1069 unable to use the 8250 module for PCMCIA or other 16C550-style
1072 Say N unless you need the z85c30 ports on your powermac
1073 to appear as /dev/ttySn.
1075 config SERIAL_PMACZILOG_CONSOLE
1076 bool "Console on PowerMac z85c30 serial port"
1077 depends on SERIAL_PMACZILOG=y
1078 select SERIAL_CORE_CONSOLE
1080 If you would like to be able to use the z85c30 serial port
1081 on your PowerMac as the console, you can do so by answering
1084 config SERIAL_LH7A40X
1085 tristate "Sharp LH7A40X embedded UART support"
1086 depends on ARM && ARCH_LH7A40X
1089 This enables support for the three on-board UARTs of the
1090 Sharp LH7A40X series CPUs. Choose Y or M.
1092 config SERIAL_LH7A40X_CONSOLE
1093 bool "Support for console on Sharp LH7A40X serial port"
1094 depends on SERIAL_LH7A40X=y
1095 select SERIAL_CORE_CONSOLE
1097 Say Y here if you wish to use one of the serial ports as the
1098 system console--the system console is the device which
1099 receives all kernel messages and warnings and which allows
1100 logins in single user mode.
1102 Even if you say Y here, the currently visible framebuffer console
1103 (/dev/tty0) will still be used as the default system console, but
1104 you can alter that using a kernel command line, for example
1108 tristate "CPM SCC/SMC serial port support"
1109 depends on CPM2 || 8xx
1112 This driver supports the SCC and SMC serial ports on Motorola
1113 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1115 config SERIAL_CPM_CONSOLE
1116 bool "Support for console on CPM SCC/SMC serial port"
1117 depends on SERIAL_CPM=y
1118 select SERIAL_CORE_CONSOLE
1120 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1121 console (the system console is the device which receives all kernel
1122 messages and warnings and which allows logins in single user mode).
1124 Even if you say Y here, the currently visible framebuffer console
1125 (/dev/tty0) will still be used as the system console by default, but
1126 you can alter that using a kernel command line option such as
1127 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1128 your boot loader (lilo or loadlin) about how to pass options to the
1129 kernel at boot time.)
1131 config SERIAL_SGI_L1_CONSOLE
1132 bool "SGI Altix L1 serial console support"
1133 depends on IA64_GENERIC || IA64_SGI_SN2
1135 select SERIAL_CORE_CONSOLE
1137 If you have an SGI Altix and you would like to use the system
1138 controller serial port as your console (you want this!),
1139 say Y. Otherwise, say N.
1141 config SERIAL_MPC52xx
1142 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
1143 depends on PPC_MPC52xx || PPC_MPC512x
1146 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
1147 like to use them, you must answer Y or M to this option. Note that
1148 for use as console, it must be included in kernel and not as a
1151 config SERIAL_MPC52xx_CONSOLE
1152 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
1153 depends on SERIAL_MPC52xx=y
1154 select SERIAL_CORE_CONSOLE
1156 Select this options if you'd like to use one of the PSC serial port
1157 of the Freescale MPC52xx family as a console.
1159 config SERIAL_MPC52xx_CONSOLE_BAUD
1160 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
1161 depends on SERIAL_MPC52xx_CONSOLE=y
1164 Select the MPC52xx console baud rate.
1165 This value is only used if the bootloader doesn't pass in the
1169 tristate "IBM Multiport Serial Adapter"
1170 depends on PCI && (PPC_ISERIES || PPC_PSERIES)
1174 This driver is for a family of multiport serial adapters
1175 including 2 port RVX, 2 port internal modem, 4 port internal
1176 modem and a split 1 port RVX and 1 port internal modem.
1178 This driver can also be built as a module. If so, the module
1179 will be called icom.
1181 config SERIAL_M32R_SIO
1187 Say Y here if you want to use the M32R serial controller.
1189 config SERIAL_M32R_SIO_CONSOLE
1190 bool "use SIO console"
1191 depends on SERIAL_M32R_SIO=y
1192 select SERIAL_CORE_CONSOLE
1194 Say Y here if you want to support a serial console.
1196 If you use an M3T-M32700UT or an OPSPUT platform,
1197 please say also y for SERIAL_M32R_PLDSIO.
1199 config SERIAL_M32R_PLDSIO
1200 bool "M32R SIO I/F on a PLD"
1201 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1204 Say Y here if you want to use the M32R serial controller
1205 on a PLD (Programmable Logic Device).
1207 If you use an M3T-M32700UT or an OPSPUT platform,
1211 bool "TMPTX39XX/49XX SIO support"
1212 depends on HAS_TXX9_SERIAL
1216 config HAS_TXX9_SERIAL
1219 config SERIAL_TXX9_NR_UARTS
1220 int "Maximum number of TMPTX39XX/49XX SIO ports"
1221 depends on SERIAL_TXX9
1224 config SERIAL_TXX9_CONSOLE
1225 bool "TMPTX39XX/49XX SIO Console support"
1226 depends on SERIAL_TXX9=y
1227 select SERIAL_CORE_CONSOLE
1229 config SERIAL_TXX9_STDSERIAL
1230 bool "TX39XX/49XX SIO act as standard serial"
1231 depends on !SERIAL_8250 && SERIAL_TXX9
1233 config SERIAL_VR41XX
1234 tristate "NEC VR4100 series Serial Interface Unit support"
1235 depends on CPU_VR41XX
1238 If you have a NEC VR4100 series processor and you want to use
1239 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1240 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1242 config SERIAL_VR41XX_CONSOLE
1243 bool "Enable NEC VR4100 series Serial Interface Unit console"
1244 depends on SERIAL_VR41XX=y
1245 select SERIAL_CORE_CONSOLE
1247 If you have a NEC VR4100 series processor and you want to use
1248 a console on a serial port, say Y. Otherwise, say N.
1251 tristate "Digi International NEO PCI Support"
1255 This is a driver for Digi International's Neo series
1256 of cards which provide multiple serial ports. You would need
1257 something like this to connect more than two modems to your Linux
1258 box, for instance in order to become a dial-in server. This driver
1259 supports PCI boards only.
1261 If you have a card like this, say Y here, otherwise say N.
1263 To compile this driver as a module, choose M here: the
1264 module will be called jsm.
1266 config SERIAL_SGI_IOC4
1267 tristate "SGI IOC4 controller serial support"
1268 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1271 If you have an SGI Altix with an IOC4 based Base IO card
1272 and wish to use the serial ports on this card, say Y.
1275 config SERIAL_SGI_IOC3
1276 tristate "SGI Altix IOC3 serial support"
1277 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1280 If you have an SGI Altix with an IOC3 serial card,
1281 say Y or M. Otherwise, say N.
1284 tristate "NetX serial port support"
1285 depends on ARM && ARCH_NETX
1288 If you have a machine based on a Hilscher NetX SoC you
1289 can enable its onboard serial port by enabling this option.
1291 To compile this driver as a module, choose M here: the
1292 module will be called netx-serial.
1294 config SERIAL_NETX_CONSOLE
1295 bool "Console on NetX serial port"
1296 depends on SERIAL_NETX=y
1297 select SERIAL_CORE_CONSOLE
1299 If you have enabled the serial port on the Hilscher NetX SoC
1300 you can make it the console by answering Y to this option.
1302 config SERIAL_OF_PLATFORM
1303 tristate "Serial port on Open Firmware platform bus"
1305 depends on SERIAL_8250
1307 If you have a PowerPC based system that has serial ports
1308 on a platform specific bus, you should enable this option.
1309 Currently, only 8250 compatible ports are supported, but
1310 others can easily be added.
1313 tristate "Freescale QUICC Engine serial port support"
1314 depends on QUICC_ENGINE
1319 This driver supports the QE serial ports on Freescale embedded
1320 PowerPC that contain a QUICC Engine.
1322 config SERIAL_SC26XX
1323 tristate "SC2681/SC2692 serial port support"
1327 This is a driver for the onboard serial ports of
1328 older RM400 machines.
1330 config SERIAL_SC26XX_CONSOLE
1331 bool "Console on SC2681/SC2692 serial port"
1332 depends on SERIAL_SC26XX
1333 select SERIAL_CORE_CONSOLE
1335 Support for Console on SC2681/SC2692 serial ports.
1337 config SERIAL_BFIN_SPORT
1338 tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
1339 depends on BLACKFIN && EXPERIMENTAL
1342 Enble support SPORT emulate UART on Blackfin series.
1344 To compile this driver as a module, choose M here: the
1345 module will be called bfin_sport_uart.
1348 prompt "Baud rate for Blackfin SPORT UART"
1349 depends on SERIAL_BFIN_SPORT
1350 default SERIAL_SPORT_BAUD_RATE_57600
1352 Choose a baud rate for the SPORT UART, other uart settings are
1353 8 bit, 1 stop bit, no parity, no flow control.
1355 config SERIAL_SPORT_BAUD_RATE_115200
1358 config SERIAL_SPORT_BAUD_RATE_57600
1361 config SERIAL_SPORT_BAUD_RATE_38400
1364 config SERIAL_SPORT_BAUD_RATE_19200
1367 config SERIAL_SPORT_BAUD_RATE_9600
1371 config SPORT_BAUD_RATE
1373 depends on SERIAL_BFIN_SPORT
1374 default 115200 if (SERIAL_SPORT_BAUD_RATE_115200)
1375 default 57600 if (SERIAL_SPORT_BAUD_RATE_57600)
1376 default 38400 if (SERIAL_SPORT_BAUD_RATE_38400)
1377 default 19200 if (SERIAL_SPORT_BAUD_RATE_19200)
1378 default 9600 if (SERIAL_SPORT_BAUD_RATE_9600)