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_S3C
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_UARTS
460 depends on ARM && PLAT_S3C
461 default 2 if ARCH_S3C2400
462 default 4 if ARCH_S3C64XX || CPU_S3C2443
465 Select the number of available UART ports for the Samsung S3C
468 config SERIAL_SAMSUNG_DEBUG
469 bool "Samsung SoC serial debug"
470 depends on SERIAL_SAMSUNG && DEBUG_LL
472 Add support for debugging the serial driver. Since this is
473 generally being used as a console, we use our own output
474 routines that go via the low-level debug printascii()
477 config SERIAL_SAMSUNG_CONSOLE
478 bool "Support for console on Samsung SoC serial port"
479 depends on SERIAL_SAMSUNG=y
480 select SERIAL_CORE_CONSOLE
482 Allow selection of the S3C24XX on-board serial ports for use as
485 Even if you say Y here, the currently visible virtual console
486 (/dev/tty0) will still be used as the system console by default, but
487 you can alter that using a kernel command line option such as
488 "console=ttySACx". (Try "man bootparam" or see the documentation of
489 your boot loader about how to pass options to the kernel at
492 config SERIAL_S3C2400
493 tristate "Samsung S3C2410 Serial port support"
494 depends on ARM && SERIAL_SAMSUNG && CPU_S3C2400
495 default y if CPU_S3C2400
497 Serial port support for the Samsung S3C2400 SoC
499 config SERIAL_S3C2410
500 tristate "Samsung S3C2410 Serial port support"
501 depends on SERIAL_SAMSUNG && CPU_S3C2410
502 default y if CPU_S3C2410
504 Serial port support for the Samsung S3C2410 SoC
506 config SERIAL_S3C2412
507 tristate "Samsung S3C2412/S3C2413 Serial port support"
508 depends on SERIAL_SAMSUNG && CPU_S3C2412
509 default y if CPU_S3C2412
511 Serial port support for the Samsung S3C2412 and S3C2413 SoC
513 config SERIAL_S3C2440
514 tristate "Samsung S3C2440/S3C2442 Serial port support"
515 depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442)
516 default y if CPU_S3C2440
517 default y if CPU_S3C2442
519 Serial port support for the Samsung S3C2440 and S3C2442 SoC
521 config SERIAL_S3C24A0
522 tristate "Samsung S3C24A0 Serial port support"
523 depends on SERIAL_SAMSUNG && CPU_S3C24A0
524 default y if CPU_S3C24A0
526 Serial port support for the Samsung S3C24A0 SoC
528 config SERIAL_S3C6400
529 tristate "Samsung S3C6400/S3C6410 Serial port support"
530 depends on SERIAL_SAMSUNG && (CPU_S3C600 || CPU_S3C6410)
533 Serial port support for the Samsung S3C6400 and S3C6410
537 bool "DECstation DZ serial driver"
538 depends on MACH_DECSTATION && 32BIT
542 DZ11-family serial controllers for DECstations and VAXstations,
543 including the DC7085, M7814, and M7819.
545 config SERIAL_DZ_CONSOLE
546 bool "Support console on DECstation DZ serial driver"
547 depends on SERIAL_DZ=y
548 select SERIAL_CORE_CONSOLE
551 If you say Y here, it will be possible to use a serial port as the
552 system console (the system console is the device which receives all
553 kernel messages and warnings and which allows logins in single user
556 Note that the firmware uses ttyS3 as the serial console on
557 DECstations that use this driver.
562 tristate "DECstation Z85C30 serial support"
563 depends on MACH_DECSTATION
567 Support for the Zilog 85C350 serial communications controller used
568 for serial ports in newer DECstation systems. These include the
569 DECsystem 5900 and all models of the DECstation and DECsystem 5000
570 systems except from model 200.
572 If unsure, say Y. To compile this driver as a module, choose M here:
573 the module will be called zs.
575 config SERIAL_ZS_CONSOLE
576 bool "Support for console on a DECstation Z85C30 serial port"
577 depends on SERIAL_ZS=y
578 select SERIAL_CORE_CONSOLE
581 If you say Y here, it will be possible to use a serial port as the
582 system console (the system console is the device which receives all
583 kernel messages and warnings and which allows logins in single user
586 Note that the firmware uses ttyS1 as the serial console on the
587 Maxine and ttyS3 on the others using this driver.
592 tristate "DC21285 serial port support"
593 depends on ARM && FOOTBRIDGE
596 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
597 PCI bridge you can enable its onboard serial port by enabling this
600 config SERIAL_21285_CONSOLE
601 bool "Console on DC21285 serial port"
602 depends on SERIAL_21285=y
603 select SERIAL_CORE_CONSOLE
605 If you have enabled the serial port on the 21285 footbridge you can
606 make it the console by answering Y to this option.
608 Even if you say Y here, the currently visible virtual console
609 (/dev/tty0) will still be used as the system console by default, but
610 you can alter that using a kernel command line option such as
611 "console=ttyFB". (Try "man bootparam" or see the documentation of
612 your boot loader (lilo or loadlin) about how to pass options to the
613 kernel at boot time.)
616 bool "Marvell MPSC serial port support"
617 depends on PPC32 && MV64X60
620 Say Y here if you want to use the Marvell MPSC serial controller.
622 config SERIAL_MPSC_CONSOLE
623 bool "Support for console on Marvell MPSC serial port"
624 depends on SERIAL_MPSC
625 select SERIAL_CORE_CONSOLE
627 Say Y here if you want to support a serial console on a Marvell MPSC.
630 bool "PXA serial port support"
631 depends on ARCH_PXA || ARCH_MMP
634 If you have a machine based on an Intel XScale PXA2xx CPU you
635 can enable its onboard serial ports by enabling this option.
637 config SERIAL_PXA_CONSOLE
638 bool "Console on PXA serial port"
639 depends on SERIAL_PXA
640 select SERIAL_CORE_CONSOLE
642 If you have enabled the serial port on the Intel XScale PXA
643 CPU you can make it the console by answering Y to this option.
645 Even if you say Y here, the currently visible virtual console
646 (/dev/tty0) will still be used as the system console by default, but
647 you can alter that using a kernel command line option such as
648 "console=ttySA0". (Try "man bootparam" or see the documentation of
649 your boot loader (lilo or loadlin) about how to pass options to the
650 kernel at boot time.)
653 bool "SA1100 serial port support"
654 depends on ARM && ARCH_SA1100
657 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
658 can enable its onboard serial port by enabling this option.
659 Please read <file:Documentation/arm/SA1100/serial_UART> for further
662 config SERIAL_SA1100_CONSOLE
663 bool "Console on SA1100 serial port"
664 depends on SERIAL_SA1100
665 select SERIAL_CORE_CONSOLE
667 If you have enabled the serial port on the SA1100/SA1110 StrongARM
668 CPU you can make it the console by answering Y to this option.
670 Even if you say Y here, the currently visible virtual console
671 (/dev/tty0) will still be used as the system console by default, but
672 you can alter that using a kernel command line option such as
673 "console=ttySA0". (Try "man bootparam" or see the documentation of
674 your boot loader (lilo or loadlin) about how to pass options to the
675 kernel at boot time.)
678 tristate "Blackfin serial port support"
681 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
683 Add support for the built-in UARTs on the Blackfin.
685 To compile this driver as a module, choose M here: the
686 module will be called bfin_5xx.
688 config SERIAL_BFIN_CONSOLE
689 bool "Console on Blackfin serial port"
690 depends on SERIAL_BFIN=y
691 select SERIAL_CORE_CONSOLE
695 depends on SERIAL_BFIN
696 default SERIAL_BFIN_DMA
698 This driver supports the built-in serial ports of the Blackfin family
701 config SERIAL_BFIN_DMA
703 depends on !DMA_UNCACHED_NONE && !KGDB_UART
705 This driver works under DMA mode. If this option is selected, the
706 blackfin simple dma driver is also enabled.
708 config SERIAL_BFIN_PIO
711 This driver works under PIO mode.
715 config SERIAL_BFIN_UART0
717 depends on SERIAL_BFIN
721 config BFIN_UART0_CTSRTS
722 bool "Enable UART0 hardware flow control"
723 depends on SERIAL_BFIN_UART0
725 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
730 depends on BFIN_UART0_CTSRTS
733 The default pin is GPIO_GP7.
734 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
738 depends on BFIN_UART0_CTSRTS
741 The default pin is GPIO_GP6.
742 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
744 config SERIAL_BFIN_UART1
746 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
750 config BFIN_UART1_CTSRTS
751 bool "Enable UART1 hardware flow control"
752 depends on SERIAL_BFIN_UART1
754 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
759 depends on BFIN_UART1_CTSRTS && !BF54x
762 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
766 depends on BFIN_UART1_CTSRTS && !BF54x
769 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
771 config SERIAL_BFIN_UART2
773 depends on SERIAL_BFIN && (BF54x)
777 config BFIN_UART2_CTSRTS
778 bool "Enable UART2 hardware flow control"
779 depends on SERIAL_BFIN_UART2
781 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
786 depends on BFIN_UART2_CTSRTS
789 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
793 depends on BFIN_UART2_CTSRTS
796 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
798 config SERIAL_BFIN_UART3
800 depends on SERIAL_BFIN && (BF54x)
804 config BFIN_UART3_CTSRTS
805 bool "Enable UART3 hardware flow control"
806 depends on SERIAL_BFIN_UART3
808 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
812 bool "IMX serial port support"
813 depends on ARM && (ARCH_IMX || ARCH_MXC)
816 If you have a machine based on a Motorola IMX CPU you
817 can enable its onboard serial port by enabling this option.
819 config SERIAL_IMX_CONSOLE
820 bool "Console on IMX serial port"
821 depends on SERIAL_IMX
822 select SERIAL_CORE_CONSOLE
824 If you have enabled the serial port on the Motorola IMX
825 CPU you can make it the console by answering Y to this option.
827 Even if you say Y here, the currently visible virtual console
828 (/dev/tty0) will still be used as the system console by default, but
829 you can alter that using a kernel command line option such as
830 "console=ttySA0". (Try "man bootparam" or see the documentation of
831 your boot loader (lilo or loadlin) about how to pass options to the
832 kernel at boot time.)
834 config SERIAL_UARTLITE
835 tristate "Xilinx uartlite serial port support"
839 Say Y here if you want to use the Xilinx uartlite serial controller.
841 To compile this driver as a module, choose M here: the
842 module will be called uartlite.ko.
844 config SERIAL_UARTLITE_CONSOLE
845 bool "Support for console on Xilinx uartlite serial port"
846 depends on SERIAL_UARTLITE=y
847 select SERIAL_CORE_CONSOLE
849 Say Y here if you wish to use a Xilinx uartlite as the system
850 console (the system console is the device which receives all kernel
851 messages and warnings and which allows logins in single user mode).
853 config SERIAL_SUNCORE
857 select SERIAL_CORE_CONSOLE
860 config SERIAL_SUNZILOG
861 tristate "Sun Zilog8530 serial support"
864 This driver supports the Zilog8530 serial ports found on many Sparc
865 systems. Say Y or M if you want to be able to these serial ports.
867 config SERIAL_SUNZILOG_CONSOLE
868 bool "Console on Sun Zilog8530 serial port"
869 depends on SERIAL_SUNZILOG=y
871 If you would like to be able to use the Zilog8530 serial port
872 on your Sparc system as the console, you can do so by answering
876 tristate "Sun SU serial support"
877 depends on SPARC && PCI
879 This driver supports the 8250 serial ports that run the keyboard and
880 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
881 to these serial ports.
883 config SERIAL_SUNSU_CONSOLE
884 bool "Console on Sun SU serial port"
885 depends on SERIAL_SUNSU=y
887 If you would like to be able to use the SU serial port
888 on your Sparc system as the console, you can do so by answering
892 tristate "Serial MUX support"
897 Saying Y here will enable the hardware MUX serial driver for
898 the Nova, K class systems and D class with a 'remote control card'.
899 The hardware MUX is not 8250/16550 compatible therefore the
900 /dev/ttyB0 device is shared between the Serial MUX and the PDC
901 software console. The following steps need to be completed to use
904 1. create the device entry (mknod /dev/ttyB0 c 11 0)
905 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
906 3. Add device ttyB0 to /etc/securetty (if you want to log on as
907 root on this console.)
908 4. Change the kernel command console parameter to: console=ttyB0
910 config SERIAL_MUX_CONSOLE
911 bool "Support for console on serial MUX"
912 depends on SERIAL_MUX=y
913 select SERIAL_CORE_CONSOLE
917 bool "PDC software console support"
918 depends on PARISC && !SERIAL_MUX && VT
921 Saying Y here will enable the software based PDC console to be
922 used as the system console. This is useful for machines in
923 which the hardware based console has not been written yet. The
924 following steps must be competed to use the PDC console:
926 1. create the device entry (mknod /dev/ttyB0 c 11 0)
927 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
928 3. Add device ttyB0 to /etc/securetty (if you want to log on as
929 root on this console.)
930 4. Change the kernel command console parameter to: console=ttyB0
933 tristate "Sun Siemens SAB82532 serial support"
934 depends on SPARC && PCI
936 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
937 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
940 config SERIAL_SUNSAB_CONSOLE
941 bool "Console on Sun Siemens SAB82532 serial port"
942 depends on SERIAL_SUNSAB=y
944 If you would like to be able to use the SAB82532 serial port
945 on your Sparc system as the console, you can do so by answering
949 bool "Sun4v Hypervisor Console support"
952 This driver supports the console device found on SUN4V Sparc
953 systems. Say Y if you want to be able to use this device.
955 config SERIAL_IP22_ZILOG
956 tristate "SGI Zilog8530 serial support"
957 depends on SGI_HAS_ZILOG
960 This driver supports the Zilog8530 serial ports found on SGI
961 systems. Say Y or M if you want to be able to these serial ports.
963 config SERIAL_IP22_ZILOG_CONSOLE
964 bool "Console on SGI Zilog8530 serial port"
965 depends on SERIAL_IP22_ZILOG=y
966 select SERIAL_CORE_CONSOLE
969 tristate "SuperH SCI(F) serial port support"
970 depends on SUPERH || H8300
973 config SERIAL_SH_SCI_NR_UARTS
974 int "Maximum number of SCI(F) serial ports"
975 depends on SERIAL_SH_SCI
978 config SERIAL_SH_SCI_CONSOLE
979 bool "Support for console on SuperH SCI(F)"
980 depends on SERIAL_SH_SCI=y
981 select SERIAL_CORE_CONSOLE
983 config SERIAL_PNX8XXX
984 bool "Enable PNX8XXX SoCs' UART Support"
985 depends on MIPS && (SOC_PNX8550 || SOC_PNX833X)
988 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
989 and you want to use serial ports, say Y. Otherwise, say N.
991 config SERIAL_PNX8XXX_CONSOLE
992 bool "Enable PNX8XX0 serial console"
993 depends on SERIAL_PNX8XXX
994 select SERIAL_CORE_CONSOLE
996 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
997 and you want to use serial console, say Y. Otherwise, say N.
1002 config SERIAL_CORE_CONSOLE
1009 bool "68328 serial support"
1010 depends on M68328 || M68EZ328 || M68VZ328
1012 This driver supports the built-in serial port of the Motorola 68328
1013 (standard, EZ and VZ varieties).
1015 config SERIAL_68328_RTS_CTS
1016 bool "Support RTS/CTS on 68328 serial port"
1017 depends on SERIAL_68328
1020 bool "Coldfire serial support"
1024 This serial driver supports the Freescale Coldfire serial ports.
1026 config SERIAL_MCF_BAUDRATE
1027 int "Default baudrate for Coldfire serial ports"
1028 depends on SERIAL_MCF
1031 This setting lets you define what the default baudrate is for the
1032 ColdFire serial ports. The usual default varies from board to board,
1033 and this setting is a way of catering for that.
1035 config SERIAL_MCF_CONSOLE
1036 bool "Coldfire serial console support"
1037 depends on SERIAL_MCF
1038 select SERIAL_CORE_CONSOLE
1040 Enable a ColdFire internal serial port to be the system console.
1042 config SERIAL_68360_SMC
1043 bool "68360 SMC uart support"
1046 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1048 config SERIAL_68360_SCC
1049 bool "68360 SCC uart support"
1052 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1056 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1059 config SERIAL_PMACZILOG
1060 tristate "PowerMac z85c30 ESCC support"
1061 depends on PPC_OF && PPC_PMAC
1064 This driver supports the Zilog z85C30 serial ports found on
1066 Say Y or M if you want to be able to these serial ports.
1068 config SERIAL_PMACZILOG_TTYS
1069 bool "Use ttySn device nodes for Zilog z85c30"
1070 depends on SERIAL_PMACZILOG
1072 The pmac_zilog driver for the z85C30 chip on many powermacs
1073 historically used the device numbers for /dev/ttySn. The
1074 8250 serial port driver also uses these numbers, which means
1075 the two drivers being unable to coexist; you could not use
1076 both z85C30 and 8250 type ports at the same time.
1078 If this option is not selected, the pmac_zilog driver will
1079 use the device numbers allocated for /dev/ttyPZn. This allows
1080 the pmac_zilog and 8250 drivers to co-exist, but may cause
1081 existing userspace setups to break. Programs that need to
1082 access the built-in serial ports on powermacs will need to
1083 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1085 If you enable this option, any z85c30 ports in the system will
1086 be registered as ttyS0 onwards as in the past, and you will be
1087 unable to use the 8250 module for PCMCIA or other 16C550-style
1090 Say N unless you need the z85c30 ports on your powermac
1091 to appear as /dev/ttySn.
1093 config SERIAL_PMACZILOG_CONSOLE
1094 bool "Console on PowerMac z85c30 serial port"
1095 depends on SERIAL_PMACZILOG=y
1096 select SERIAL_CORE_CONSOLE
1098 If you would like to be able to use the z85c30 serial port
1099 on your PowerMac as the console, you can do so by answering
1102 config SERIAL_LH7A40X
1103 tristate "Sharp LH7A40X embedded UART support"
1104 depends on ARM && ARCH_LH7A40X
1107 This enables support for the three on-board UARTs of the
1108 Sharp LH7A40X series CPUs. Choose Y or M.
1110 config SERIAL_LH7A40X_CONSOLE
1111 bool "Support for console on Sharp LH7A40X serial port"
1112 depends on SERIAL_LH7A40X=y
1113 select SERIAL_CORE_CONSOLE
1115 Say Y here if you wish to use one of the serial ports as the
1116 system console--the system console is the device which
1117 receives all kernel messages and warnings and which allows
1118 logins in single user mode.
1120 Even if you say Y here, the currently visible framebuffer console
1121 (/dev/tty0) will still be used as the default system console, but
1122 you can alter that using a kernel command line, for example
1126 tristate "CPM SCC/SMC serial port support"
1127 depends on CPM2 || 8xx
1130 This driver supports the SCC and SMC serial ports on Motorola
1131 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1133 config SERIAL_CPM_CONSOLE
1134 bool "Support for console on CPM SCC/SMC serial port"
1135 depends on SERIAL_CPM=y
1136 select SERIAL_CORE_CONSOLE
1138 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1139 console (the system console is the device which receives all kernel
1140 messages and warnings and which allows logins in single user mode).
1142 Even if you say Y here, the currently visible framebuffer console
1143 (/dev/tty0) will still be used as the system console by default, but
1144 you can alter that using a kernel command line option such as
1145 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1146 your boot loader (lilo or loadlin) about how to pass options to the
1147 kernel at boot time.)
1149 config SERIAL_SGI_L1_CONSOLE
1150 bool "SGI Altix L1 serial console support"
1151 depends on IA64_GENERIC || IA64_SGI_SN2
1153 select SERIAL_CORE_CONSOLE
1155 If you have an SGI Altix and you would like to use the system
1156 controller serial port as your console (you want this!),
1157 say Y. Otherwise, say N.
1159 config SERIAL_MPC52xx
1160 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
1161 depends on PPC_MPC52xx || PPC_MPC512x
1164 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
1165 like to use them, you must answer Y or M to this option. Note that
1166 for use as console, it must be included in kernel and not as a
1169 config SERIAL_MPC52xx_CONSOLE
1170 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
1171 depends on SERIAL_MPC52xx=y
1172 select SERIAL_CORE_CONSOLE
1174 Select this options if you'd like to use one of the PSC serial port
1175 of the Freescale MPC52xx family as a console.
1177 config SERIAL_MPC52xx_CONSOLE_BAUD
1178 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
1179 depends on SERIAL_MPC52xx_CONSOLE=y
1182 Select the MPC52xx console baud rate.
1183 This value is only used if the bootloader doesn't pass in the
1187 tristate "IBM Multiport Serial Adapter"
1188 depends on PCI && (PPC_ISERIES || PPC_PSERIES)
1192 This driver is for a family of multiport serial adapters
1193 including 2 port RVX, 2 port internal modem, 4 port internal
1194 modem and a split 1 port RVX and 1 port internal modem.
1196 This driver can also be built as a module. If so, the module
1197 will be called icom.
1199 config SERIAL_M32R_SIO
1205 Say Y here if you want to use the M32R serial controller.
1207 config SERIAL_M32R_SIO_CONSOLE
1208 bool "use SIO console"
1209 depends on SERIAL_M32R_SIO=y
1210 select SERIAL_CORE_CONSOLE
1212 Say Y here if you want to support a serial console.
1214 If you use an M3T-M32700UT or an OPSPUT platform,
1215 please say also y for SERIAL_M32R_PLDSIO.
1217 config SERIAL_M32R_PLDSIO
1218 bool "M32R SIO I/F on a PLD"
1219 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1222 Say Y here if you want to use the M32R serial controller
1223 on a PLD (Programmable Logic Device).
1225 If you use an M3T-M32700UT or an OPSPUT platform,
1229 bool "TMPTX39XX/49XX SIO support"
1230 depends on HAS_TXX9_SERIAL
1234 config HAS_TXX9_SERIAL
1237 config SERIAL_TXX9_NR_UARTS
1238 int "Maximum number of TMPTX39XX/49XX SIO ports"
1239 depends on SERIAL_TXX9
1242 config SERIAL_TXX9_CONSOLE
1243 bool "TMPTX39XX/49XX SIO Console support"
1244 depends on SERIAL_TXX9=y
1245 select SERIAL_CORE_CONSOLE
1247 config SERIAL_TXX9_STDSERIAL
1248 bool "TX39XX/49XX SIO act as standard serial"
1249 depends on !SERIAL_8250 && SERIAL_TXX9
1251 config SERIAL_VR41XX
1252 tristate "NEC VR4100 series Serial Interface Unit support"
1253 depends on CPU_VR41XX
1256 If you have a NEC VR4100 series processor and you want to use
1257 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1258 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1260 config SERIAL_VR41XX_CONSOLE
1261 bool "Enable NEC VR4100 series Serial Interface Unit console"
1262 depends on SERIAL_VR41XX=y
1263 select SERIAL_CORE_CONSOLE
1265 If you have a NEC VR4100 series processor and you want to use
1266 a console on a serial port, say Y. Otherwise, say N.
1269 tristate "Digi International NEO PCI Support"
1273 This is a driver for Digi International's Neo series
1274 of cards which provide multiple serial ports. You would need
1275 something like this to connect more than two modems to your Linux
1276 box, for instance in order to become a dial-in server. This driver
1277 supports PCI boards only.
1279 If you have a card like this, say Y here, otherwise say N.
1281 To compile this driver as a module, choose M here: the
1282 module will be called jsm.
1284 config SERIAL_SGI_IOC4
1285 tristate "SGI IOC4 controller serial support"
1286 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1289 If you have an SGI Altix with an IOC4 based Base IO card
1290 and wish to use the serial ports on this card, say Y.
1293 config SERIAL_SGI_IOC3
1294 tristate "SGI Altix IOC3 serial support"
1295 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1298 If you have an SGI Altix with an IOC3 serial card,
1299 say Y or M. Otherwise, say N.
1302 tristate "NetX serial port support"
1303 depends on ARM && ARCH_NETX
1306 If you have a machine based on a Hilscher NetX SoC you
1307 can enable its onboard serial port by enabling this option.
1309 To compile this driver as a module, choose M here: the
1310 module will be called netx-serial.
1312 config SERIAL_NETX_CONSOLE
1313 bool "Console on NetX serial port"
1314 depends on SERIAL_NETX=y
1315 select SERIAL_CORE_CONSOLE
1317 If you have enabled the serial port on the Hilscher NetX SoC
1318 you can make it the console by answering Y to this option.
1320 config SERIAL_OF_PLATFORM
1321 tristate "Serial port on Open Firmware platform bus"
1323 depends on SERIAL_8250 || SERIAL_OF_PLATFORM_NWPSERIAL
1325 If you have a PowerPC based system that has serial ports
1326 on a platform specific bus, you should enable this option.
1327 Currently, only 8250 compatible ports are supported, but
1328 others can easily be added.
1330 config SERIAL_OF_PLATFORM_NWPSERIAL
1331 tristate "NWP serial port driver"
1332 depends on PPC_OF && PPC_DCR
1333 select SERIAL_OF_PLATFORM
1334 select SERIAL_CORE_CONSOLE
1337 This driver supports the cell network processor nwp serial
1340 config SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE
1341 bool "Console on NWP serial port"
1342 depends on SERIAL_OF_PLATFORM_NWPSERIAL=y
1343 select SERIAL_CORE_CONSOLE
1345 Support for Console on the NWP serial ports.
1348 tristate "Freescale QUICC Engine serial port support"
1349 depends on QUICC_ENGINE
1354 This driver supports the QE serial ports on Freescale embedded
1355 PowerPC that contain a QUICC Engine.
1357 config SERIAL_SC26XX
1358 tristate "SC2681/SC2692 serial port support"
1362 This is a driver for the onboard serial ports of
1363 older RM400 machines.
1365 config SERIAL_SC26XX_CONSOLE
1366 bool "Console on SC2681/SC2692 serial port"
1367 depends on SERIAL_SC26XX
1368 select SERIAL_CORE_CONSOLE
1370 Support for Console on SC2681/SC2692 serial ports.
1372 config SERIAL_BFIN_SPORT
1373 tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
1374 depends on BLACKFIN && EXPERIMENTAL
1377 Enable SPORT emulate UART on Blackfin series.
1379 To compile this driver as a module, choose M here: the
1380 module will be called bfin_sport_uart.
1383 prompt "Baud rate for Blackfin SPORT UART"
1384 depends on SERIAL_BFIN_SPORT
1385 default SERIAL_SPORT_BAUD_RATE_57600
1387 Choose a baud rate for the SPORT UART, other uart settings are
1388 8 bit, 1 stop bit, no parity, no flow control.
1390 config SERIAL_SPORT_BAUD_RATE_115200
1393 config SERIAL_SPORT_BAUD_RATE_57600
1396 config SERIAL_SPORT_BAUD_RATE_38400
1399 config SERIAL_SPORT_BAUD_RATE_19200
1402 config SERIAL_SPORT_BAUD_RATE_9600
1406 config SPORT_BAUD_RATE
1408 depends on SERIAL_BFIN_SPORT
1409 default 115200 if (SERIAL_SPORT_BAUD_RATE_115200)
1410 default 57600 if (SERIAL_SPORT_BAUD_RATE_57600)
1411 default 38400 if (SERIAL_SPORT_BAUD_RATE_38400)
1412 default 19200 if (SERIAL_SPORT_BAUD_RATE_19200)
1413 default 9600 if (SERIAL_SPORT_BAUD_RATE_9600)