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_SAMSUNG
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_4
460 depends on ARM && PLAT_SAMSUNG
461 default y if CPU_S3C2443
463 Internal node for the common case of 4 Samsung compatible UARTs
465 config SERIAL_SAMSUNG_UARTS
467 depends on ARM && PLAT_SAMSUNG
468 default 2 if ARCH_S3C2400
469 default 4 if SERIAL_SAMSUNG_UARTS_4
472 Select the number of available UART ports for the Samsung S3C
475 config SERIAL_SAMSUNG_DEBUG
476 bool "Samsung SoC serial debug"
477 depends on SERIAL_SAMSUNG && DEBUG_LL
479 Add support for debugging the serial driver. Since this is
480 generally being used as a console, we use our own output
481 routines that go via the low-level debug printascii()
484 config SERIAL_SAMSUNG_CONSOLE
485 bool "Support for console on Samsung SoC serial port"
486 depends on SERIAL_SAMSUNG=y
487 select SERIAL_CORE_CONSOLE
489 Allow selection of the S3C24XX on-board serial ports for use as
492 Even if you say Y here, the currently visible virtual console
493 (/dev/tty0) will still be used as the system console by default, but
494 you can alter that using a kernel command line option such as
495 "console=ttySACx". (Try "man bootparam" or see the documentation of
496 your boot loader about how to pass options to the kernel at
499 config SERIAL_S3C2400
500 tristate "Samsung S3C2410 Serial port support"
501 depends on ARM && SERIAL_SAMSUNG && CPU_S3C2400
502 default y if CPU_S3C2400
504 Serial port support for the Samsung S3C2400 SoC
506 config SERIAL_S3C2410
507 tristate "Samsung S3C2410 Serial port support"
508 depends on SERIAL_SAMSUNG && CPU_S3C2410
509 default y if CPU_S3C2410
511 Serial port support for the Samsung S3C2410 SoC
513 config SERIAL_S3C2412
514 tristate "Samsung S3C2412/S3C2413 Serial port support"
515 depends on SERIAL_SAMSUNG && CPU_S3C2412
516 default y if CPU_S3C2412
518 Serial port support for the Samsung S3C2412 and S3C2413 SoC
520 config SERIAL_S3C2440
521 tristate "Samsung S3C2440/S3C2442 Serial port support"
522 depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442)
523 default y if CPU_S3C2440
524 default y if CPU_S3C2442
526 Serial port support for the Samsung S3C2440 and S3C2442 SoC
528 config SERIAL_S3C24A0
529 tristate "Samsung S3C24A0 Serial port support"
530 depends on SERIAL_SAMSUNG && CPU_S3C24A0
531 default y if CPU_S3C24A0
533 Serial port support for the Samsung S3C24A0 SoC
535 config SERIAL_S3C6400
536 tristate "Samsung S3C6400/S3C6410/S5P6440 Seria port support"
537 depends on SERIAL_SAMSUNG && (CPU_S3C6400 || CPU_S3C6410 || CPU_S5P6440)
538 select SERIAL_SAMSUNG_UARTS_4
541 Serial port support for the Samsung S3C6400, S3C6410 and S5P6440
544 config SERIAL_S5PC100
545 tristate "Samsung S5PC100 Serial port support"
546 depends on SERIAL_SAMSUNG && CPU_S5PC100
547 select SERIAL_SAMSUNG_UARTS_4
550 Serial port support for the Samsung S5PC100 SoCs
552 config SERIAL_S5PV210
553 tristate "Samsung S5PV210 Serial port support"
554 depends on SERIAL_SAMSUNG && (CPU_S5PV210 || CPU_S5P6442)
555 select SERIAL_SAMSUNG_UARTS_4 if CPU_S5PV210
558 Serial port support for Samsung's S5P Family of SoC's
560 config SERIAL_MAX3100
561 tristate "MAX3100 support"
568 bool "DECstation DZ serial driver"
569 depends on MACH_DECSTATION && 32BIT
573 DZ11-family serial controllers for DECstations and VAXstations,
574 including the DC7085, M7814, and M7819.
576 config SERIAL_DZ_CONSOLE
577 bool "Support console on DECstation DZ serial driver"
578 depends on SERIAL_DZ=y
579 select SERIAL_CORE_CONSOLE
582 If you say Y here, it will be possible to use a serial port as the
583 system console (the system console is the device which receives all
584 kernel messages and warnings and which allows logins in single user
587 Note that the firmware uses ttyS3 as the serial console on
588 DECstations that use this driver.
593 tristate "DECstation Z85C30 serial support"
594 depends on MACH_DECSTATION
598 Support for the Zilog 85C350 serial communications controller used
599 for serial ports in newer DECstation systems. These include the
600 DECsystem 5900 and all models of the DECstation and DECsystem 5000
601 systems except from model 200.
603 If unsure, say Y. To compile this driver as a module, choose M here:
604 the module will be called zs.
606 config SERIAL_ZS_CONSOLE
607 bool "Support for console on a DECstation Z85C30 serial port"
608 depends on SERIAL_ZS=y
609 select SERIAL_CORE_CONSOLE
612 If you say Y here, it will be possible to use a serial port as the
613 system console (the system console is the device which receives all
614 kernel messages and warnings and which allows logins in single user
617 Note that the firmware uses ttyS1 as the serial console on the
618 Maxine and ttyS3 on the others using this driver.
623 tristate "DC21285 serial port support"
624 depends on ARM && FOOTBRIDGE
627 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
628 PCI bridge you can enable its onboard serial port by enabling this
631 config SERIAL_21285_CONSOLE
632 bool "Console on DC21285 serial port"
633 depends on SERIAL_21285=y
634 select SERIAL_CORE_CONSOLE
636 If you have enabled the serial port on the 21285 footbridge you can
637 make it the console by answering Y to this option.
639 Even if you say Y here, the currently visible virtual console
640 (/dev/tty0) will still be used as the system console by default, but
641 you can alter that using a kernel command line option such as
642 "console=ttyFB". (Try "man bootparam" or see the documentation of
643 your boot loader (lilo or loadlin) about how to pass options to the
644 kernel at boot time.)
647 bool "Marvell MPSC serial port support"
648 depends on PPC32 && MV64X60
651 Say Y here if you want to use the Marvell MPSC serial controller.
653 config SERIAL_MPSC_CONSOLE
654 bool "Support for console on Marvell MPSC serial port"
655 depends on SERIAL_MPSC
656 select SERIAL_CORE_CONSOLE
658 Say Y here if you want to support a serial console on a Marvell MPSC.
661 bool "PXA serial port support"
662 depends on ARCH_PXA || ARCH_MMP
665 If you have a machine based on an Intel XScale PXA2xx CPU you
666 can enable its onboard serial ports by enabling this option.
668 config SERIAL_PXA_CONSOLE
669 bool "Console on PXA serial port"
670 depends on SERIAL_PXA
671 select SERIAL_CORE_CONSOLE
673 If you have enabled the serial port on the Intel XScale PXA
674 CPU you can make it the console by answering Y to this option.
676 Even if you say Y here, the currently visible virtual console
677 (/dev/tty0) will still be used as the system console by default, but
678 you can alter that using a kernel command line option such as
679 "console=ttySA0". (Try "man bootparam" or see the documentation of
680 your boot loader (lilo or loadlin) about how to pass options to the
681 kernel at boot time.)
684 bool "SA1100 serial port support"
685 depends on ARM && ARCH_SA1100
688 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
689 can enable its onboard serial port by enabling this option.
690 Please read <file:Documentation/arm/SA1100/serial_UART> for further
693 config SERIAL_SA1100_CONSOLE
694 bool "Console on SA1100 serial port"
695 depends on SERIAL_SA1100
696 select SERIAL_CORE_CONSOLE
698 If you have enabled the serial port on the SA1100/SA1110 StrongARM
699 CPU you can make it the console by answering Y to this option.
701 Even if you say Y here, the currently visible virtual console
702 (/dev/tty0) will still be used as the system console by default, but
703 you can alter that using a kernel command line option such as
704 "console=ttySA0". (Try "man bootparam" or see the documentation of
705 your boot loader (lilo or loadlin) about how to pass options to the
706 kernel at boot time.)
709 tristate "Blackfin serial port support"
712 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
714 Add support for the built-in UARTs on the Blackfin.
716 To compile this driver as a module, choose M here: the
717 module will be called bfin_5xx.
719 config SERIAL_BFIN_CONSOLE
720 bool "Console on Blackfin serial port"
721 depends on SERIAL_BFIN=y
722 select SERIAL_CORE_CONSOLE
726 depends on SERIAL_BFIN
727 default SERIAL_BFIN_DMA
729 This driver supports the built-in serial ports of the Blackfin family
732 config SERIAL_BFIN_DMA
734 depends on !DMA_UNCACHED_NONE && KGDB_SERIAL_CONSOLE=n
736 This driver works under DMA mode. If this option is selected, the
737 blackfin simple dma driver is also enabled.
739 config SERIAL_BFIN_PIO
742 This driver works under PIO mode.
746 config SERIAL_BFIN_UART0
748 depends on SERIAL_BFIN
752 config BFIN_UART0_CTSRTS
753 bool "Enable UART0 hardware flow control"
754 depends on SERIAL_BFIN_UART0
756 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
761 depends on BFIN_UART0_CTSRTS && !BF548
764 The default pin is GPIO_GP7.
765 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
769 depends on BFIN_UART0_CTSRTS && !BF548
772 The default pin is GPIO_GP6.
773 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
775 config SERIAL_BFIN_UART1
777 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
781 config BFIN_UART1_CTSRTS
782 bool "Enable UART1 hardware flow control"
783 depends on SERIAL_BFIN_UART1
785 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
790 depends on BFIN_UART1_CTSRTS && !BF548
793 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
797 depends on BFIN_UART1_CTSRTS && !BF548
800 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
802 config SERIAL_BFIN_UART2
804 depends on SERIAL_BFIN && (BF54x || BF538 || BF539)
808 config BFIN_UART2_CTSRTS
809 bool "Enable UART2 hardware flow control"
810 depends on SERIAL_BFIN_UART2
812 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
817 depends on BFIN_UART2_CTSRTS && !BF548
820 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
824 depends on BFIN_UART2_CTSRTS && !BF548
827 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
829 config SERIAL_BFIN_UART3
831 depends on SERIAL_BFIN && (BF54x)
835 config BFIN_UART3_CTSRTS
836 bool "Enable UART3 hardware flow control"
837 depends on SERIAL_BFIN_UART3
839 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
844 depends on BFIN_UART3_CTSRTS && !BF548
847 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
851 depends on BFIN_UART3_CTSRTS && !BF548
854 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
857 bool "IMX serial port support"
858 depends on ARM && (ARCH_IMX || ARCH_MXC)
862 If you have a machine based on a Motorola IMX CPU you
863 can enable its onboard serial port by enabling this option.
865 config SERIAL_IMX_CONSOLE
866 bool "Console on IMX serial port"
867 depends on SERIAL_IMX
868 select SERIAL_CORE_CONSOLE
870 If you have enabled the serial port on the Motorola IMX
871 CPU you can make it the console by answering Y to this option.
873 Even if you say Y here, the currently visible virtual console
874 (/dev/tty0) will still be used as the system console by default, but
875 you can alter that using a kernel command line option such as
876 "console=ttySA0". (Try "man bootparam" or see the documentation of
877 your boot loader (lilo or loadlin) about how to pass options to the
878 kernel at boot time.)
880 config SERIAL_UARTLITE
881 tristate "Xilinx uartlite serial port support"
882 depends on PPC32 || MICROBLAZE || MFD_TIMBERDALE
885 Say Y here if you want to use the Xilinx uartlite serial controller.
887 To compile this driver as a module, choose M here: the
888 module will be called uartlite.
890 config SERIAL_UARTLITE_CONSOLE
891 bool "Support for console on Xilinx uartlite serial port"
892 depends on SERIAL_UARTLITE=y
893 select SERIAL_CORE_CONSOLE
895 Say Y here if you wish to use a Xilinx uartlite as the system
896 console (the system console is the device which receives all kernel
897 messages and warnings and which allows logins in single user mode).
899 config SERIAL_SUNCORE
903 select SERIAL_CORE_CONSOLE
906 config SERIAL_SUNZILOG
907 tristate "Sun Zilog8530 serial support"
910 This driver supports the Zilog8530 serial ports found on many Sparc
911 systems. Say Y or M if you want to be able to these serial ports.
913 config SERIAL_SUNZILOG_CONSOLE
914 bool "Console on Sun Zilog8530 serial port"
915 depends on SERIAL_SUNZILOG=y
917 If you would like to be able to use the Zilog8530 serial port
918 on your Sparc system as the console, you can do so by answering
922 tristate "Sun SU serial support"
923 depends on SPARC && PCI
925 This driver supports the 8250 serial ports that run the keyboard and
926 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
927 to these serial ports.
929 config SERIAL_SUNSU_CONSOLE
930 bool "Console on Sun SU serial port"
931 depends on SERIAL_SUNSU=y
933 If you would like to be able to use the SU serial port
934 on your Sparc system as the console, you can do so by answering
938 tristate "Serial MUX support"
943 Saying Y here will enable the hardware MUX serial driver for
944 the Nova, K class systems and D class with a 'remote control card'.
945 The hardware MUX is not 8250/16550 compatible therefore the
946 /dev/ttyB0 device is shared between the Serial MUX and the PDC
947 software console. The following steps need to be completed to use
950 1. create the device entry (mknod /dev/ttyB0 c 11 0)
951 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
952 3. Add device ttyB0 to /etc/securetty (if you want to log on as
953 root on this console.)
954 4. Change the kernel command console parameter to: console=ttyB0
956 config SERIAL_MUX_CONSOLE
957 bool "Support for console on serial MUX"
958 depends on SERIAL_MUX=y
959 select SERIAL_CORE_CONSOLE
963 bool "PDC software console support"
964 depends on PARISC && !SERIAL_MUX && VT
967 Saying Y here will enable the software based PDC console to be
968 used as the system console. This is useful for machines in
969 which the hardware based console has not been written yet. The
970 following steps must be competed to use the PDC console:
972 1. create the device entry (mknod /dev/ttyB0 c 11 0)
973 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
974 3. Add device ttyB0 to /etc/securetty (if you want to log on as
975 root on this console.)
976 4. Change the kernel command console parameter to: console=ttyB0
979 tristate "Sun Siemens SAB82532 serial support"
980 depends on SPARC && PCI
982 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
983 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
986 config SERIAL_SUNSAB_CONSOLE
987 bool "Console on Sun Siemens SAB82532 serial port"
988 depends on SERIAL_SUNSAB=y
990 If you would like to be able to use the SAB82532 serial port
991 on your Sparc system as the console, you can do so by answering
995 bool "Sun4v Hypervisor Console support"
998 This driver supports the console device found on SUN4V Sparc
999 systems. Say Y if you want to be able to use this device.
1001 config SERIAL_IP22_ZILOG
1002 tristate "SGI Zilog8530 serial support"
1003 depends on SGI_HAS_ZILOG
1006 This driver supports the Zilog8530 serial ports found on SGI
1007 systems. Say Y or M if you want to be able to these serial ports.
1009 config SERIAL_IP22_ZILOG_CONSOLE
1010 bool "Console on SGI Zilog8530 serial port"
1011 depends on SERIAL_IP22_ZILOG=y
1012 select SERIAL_CORE_CONSOLE
1014 config SERIAL_SH_SCI
1015 tristate "SuperH SCI(F) serial port support"
1016 depends on HAVE_CLK && (SUPERH || H8300)
1019 config SERIAL_SH_SCI_NR_UARTS
1020 int "Maximum number of SCI(F) serial ports"
1021 depends on SERIAL_SH_SCI
1024 config SERIAL_SH_SCI_CONSOLE
1025 bool "Support for console on SuperH SCI(F)"
1026 depends on SERIAL_SH_SCI=y
1027 select SERIAL_CORE_CONSOLE
1029 config SERIAL_PNX8XXX
1030 bool "Enable PNX8XXX SoCs' UART Support"
1031 depends on MIPS && (SOC_PNX8550 || SOC_PNX833X)
1034 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
1035 and you want to use serial ports, say Y. Otherwise, say N.
1037 config SERIAL_PNX8XXX_CONSOLE
1038 bool "Enable PNX8XX0 serial console"
1039 depends on SERIAL_PNX8XXX
1040 select SERIAL_CORE_CONSOLE
1042 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
1043 and you want to use serial console, say Y. Otherwise, say N.
1048 config SERIAL_CORE_CONSOLE
1055 bool "68328 serial support"
1056 depends on M68328 || M68EZ328 || M68VZ328
1058 This driver supports the built-in serial port of the Motorola 68328
1059 (standard, EZ and VZ varieties).
1061 config SERIAL_68328_RTS_CTS
1062 bool "Support RTS/CTS on 68328 serial port"
1063 depends on SERIAL_68328
1066 bool "Coldfire serial support"
1070 This serial driver supports the Freescale Coldfire serial ports.
1072 config SERIAL_MCF_BAUDRATE
1073 int "Default baudrate for Coldfire serial ports"
1074 depends on SERIAL_MCF
1077 This setting lets you define what the default baudrate is for the
1078 ColdFire serial ports. The usual default varies from board to board,
1079 and this setting is a way of catering for that.
1081 config SERIAL_MCF_CONSOLE
1082 bool "Coldfire serial console support"
1083 depends on SERIAL_MCF
1084 select SERIAL_CORE_CONSOLE
1086 Enable a ColdFire internal serial port to be the system console.
1088 config SERIAL_68360_SMC
1089 bool "68360 SMC uart support"
1092 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1094 config SERIAL_68360_SCC
1095 bool "68360 SCC uart support"
1098 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1102 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1105 config SERIAL_PMACZILOG
1106 tristate "PowerMac z85c30 ESCC support"
1107 depends on PPC_OF && PPC_PMAC
1110 This driver supports the Zilog z85C30 serial ports found on
1112 Say Y or M if you want to be able to these serial ports.
1114 config SERIAL_PMACZILOG_TTYS
1115 bool "Use ttySn device nodes for Zilog z85c30"
1116 depends on SERIAL_PMACZILOG
1118 The pmac_zilog driver for the z85C30 chip on many powermacs
1119 historically used the device numbers for /dev/ttySn. The
1120 8250 serial port driver also uses these numbers, which means
1121 the two drivers being unable to coexist; you could not use
1122 both z85C30 and 8250 type ports at the same time.
1124 If this option is not selected, the pmac_zilog driver will
1125 use the device numbers allocated for /dev/ttyPZn. This allows
1126 the pmac_zilog and 8250 drivers to co-exist, but may cause
1127 existing userspace setups to break. Programs that need to
1128 access the built-in serial ports on powermacs will need to
1129 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1131 If you enable this option, any z85c30 ports in the system will
1132 be registered as ttyS0 onwards as in the past, and you will be
1133 unable to use the 8250 module for PCMCIA or other 16C550-style
1136 Say N unless you need the z85c30 ports on your powermac
1137 to appear as /dev/ttySn.
1139 config SERIAL_PMACZILOG_CONSOLE
1140 bool "Console on PowerMac z85c30 serial port"
1141 depends on SERIAL_PMACZILOG=y
1142 select SERIAL_CORE_CONSOLE
1144 If you would like to be able to use the z85c30 serial port
1145 on your PowerMac as the console, you can do so by answering
1148 config SERIAL_LH7A40X
1149 tristate "Sharp LH7A40X embedded UART support"
1150 depends on ARM && ARCH_LH7A40X
1153 This enables support for the three on-board UARTs of the
1154 Sharp LH7A40X series CPUs. Choose Y or M.
1156 config SERIAL_LH7A40X_CONSOLE
1157 bool "Support for console on Sharp LH7A40X serial port"
1158 depends on SERIAL_LH7A40X=y
1159 select SERIAL_CORE_CONSOLE
1161 Say Y here if you wish to use one of the serial ports as the
1162 system console--the system console is the device which
1163 receives all kernel messages and warnings and which allows
1164 logins in single user mode.
1166 Even if you say Y here, the currently visible framebuffer console
1167 (/dev/tty0) will still be used as the default system console, but
1168 you can alter that using a kernel command line, for example
1172 tristate "CPM SCC/SMC serial port support"
1173 depends on CPM2 || 8xx
1176 This driver supports the SCC and SMC serial ports on Motorola
1177 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1179 config SERIAL_CPM_CONSOLE
1180 bool "Support for console on CPM SCC/SMC serial port"
1181 depends on SERIAL_CPM=y
1182 select SERIAL_CORE_CONSOLE
1184 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1185 console (the system console is the device which receives all kernel
1186 messages and warnings and which allows logins in single user mode).
1188 Even if you say Y here, the currently visible framebuffer console
1189 (/dev/tty0) will still be used as the system console by default, but
1190 you can alter that using a kernel command line option such as
1191 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1192 your boot loader (lilo or loadlin) about how to pass options to the
1193 kernel at boot time.)
1195 config SERIAL_SGI_L1_CONSOLE
1196 bool "SGI Altix L1 serial console support"
1197 depends on IA64_GENERIC || IA64_SGI_SN2
1199 select SERIAL_CORE_CONSOLE
1201 If you have an SGI Altix and you would like to use the system
1202 controller serial port as your console (you want this!),
1203 say Y. Otherwise, say N.
1205 config SERIAL_MPC52xx
1206 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
1207 depends on PPC_MPC52xx || PPC_MPC512x
1210 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
1211 like to use them, you must answer Y or M to this option. Note that
1212 for use as console, it must be included in kernel and not as a
1215 config SERIAL_MPC52xx_CONSOLE
1216 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
1217 depends on SERIAL_MPC52xx=y
1218 select SERIAL_CORE_CONSOLE
1220 Select this options if you'd like to use one of the PSC serial port
1221 of the Freescale MPC52xx family as a console.
1223 config SERIAL_MPC52xx_CONSOLE_BAUD
1224 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
1225 depends on SERIAL_MPC52xx_CONSOLE=y
1228 Select the MPC52xx console baud rate.
1229 This value is only used if the bootloader doesn't pass in the
1233 tristate "IBM Multiport Serial Adapter"
1234 depends on PCI && (PPC_ISERIES || PPC_PSERIES)
1238 This driver is for a family of multiport serial adapters
1239 including 2 port RVX, 2 port internal modem, 4 port internal
1240 modem and a split 1 port RVX and 1 port internal modem.
1242 This driver can also be built as a module. If so, the module
1243 will be called icom.
1245 config SERIAL_M32R_SIO
1251 Say Y here if you want to use the M32R serial controller.
1253 config SERIAL_M32R_SIO_CONSOLE
1254 bool "use SIO console"
1255 depends on SERIAL_M32R_SIO=y
1256 select SERIAL_CORE_CONSOLE
1258 Say Y here if you want to support a serial console.
1260 If you use an M3T-M32700UT or an OPSPUT platform,
1261 please say also y for SERIAL_M32R_PLDSIO.
1263 config SERIAL_M32R_PLDSIO
1264 bool "M32R SIO I/F on a PLD"
1265 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1268 Say Y here if you want to use the M32R serial controller
1269 on a PLD (Programmable Logic Device).
1271 If you use an M3T-M32700UT or an OPSPUT platform,
1275 bool "TMPTX39XX/49XX SIO support"
1276 depends on HAS_TXX9_SERIAL
1280 config HAS_TXX9_SERIAL
1283 config SERIAL_TXX9_NR_UARTS
1284 int "Maximum number of TMPTX39XX/49XX SIO ports"
1285 depends on SERIAL_TXX9
1288 config SERIAL_TXX9_CONSOLE
1289 bool "TMPTX39XX/49XX SIO Console support"
1290 depends on SERIAL_TXX9=y
1291 select SERIAL_CORE_CONSOLE
1293 config SERIAL_TXX9_STDSERIAL
1294 bool "TX39XX/49XX SIO act as standard serial"
1295 depends on !SERIAL_8250 && SERIAL_TXX9
1297 config SERIAL_VR41XX
1298 tristate "NEC VR4100 series Serial Interface Unit support"
1299 depends on CPU_VR41XX
1302 If you have a NEC VR4100 series processor and you want to use
1303 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1304 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1306 config SERIAL_VR41XX_CONSOLE
1307 bool "Enable NEC VR4100 series Serial Interface Unit console"
1308 depends on SERIAL_VR41XX=y
1309 select SERIAL_CORE_CONSOLE
1311 If you have a NEC VR4100 series processor and you want to use
1312 a console on a serial port, say Y. Otherwise, say N.
1315 tristate "Digi International NEO PCI Support"
1319 This is a driver for Digi International's Neo series
1320 of cards which provide multiple serial ports. You would need
1321 something like this to connect more than two modems to your Linux
1322 box, for instance in order to become a dial-in server. This driver
1323 supports PCI boards only.
1325 If you have a card like this, say Y here, otherwise say N.
1327 To compile this driver as a module, choose M here: the
1328 module will be called jsm.
1330 config SERIAL_SGI_IOC4
1331 tristate "SGI IOC4 controller serial support"
1332 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1335 If you have an SGI Altix with an IOC4 based Base IO card
1336 and wish to use the serial ports on this card, say Y.
1339 config SERIAL_SGI_IOC3
1340 tristate "SGI Altix IOC3 serial support"
1341 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1344 If you have an SGI Altix with an IOC3 serial card,
1345 say Y or M. Otherwise, say N.
1348 bool "MSM on-chip serial port support"
1349 depends on ARM && ARCH_MSM
1352 config SERIAL_MSM_CONSOLE
1353 bool "MSM serial console support"
1354 depends on SERIAL_MSM=y
1355 select SERIAL_CORE_CONSOLE
1358 tristate "NetX serial port support"
1359 depends on ARM && ARCH_NETX
1362 If you have a machine based on a Hilscher NetX SoC you
1363 can enable its onboard serial port by enabling this option.
1365 To compile this driver as a module, choose M here: the
1366 module will be called netx-serial.
1368 config SERIAL_NETX_CONSOLE
1369 bool "Console on NetX serial port"
1370 depends on SERIAL_NETX=y
1371 select SERIAL_CORE_CONSOLE
1373 If you have enabled the serial port on the Hilscher NetX SoC
1374 you can make it the console by answering Y to this option.
1376 config SERIAL_OF_PLATFORM
1377 tristate "Serial port on Open Firmware platform bus"
1378 depends on PPC_OF || MICROBLAZE
1379 depends on SERIAL_8250 || SERIAL_OF_PLATFORM_NWPSERIAL
1381 If you have a PowerPC based system that has serial ports
1382 on a platform specific bus, you should enable this option.
1383 Currently, only 8250 compatible ports are supported, but
1384 others can easily be added.
1386 config SERIAL_OF_PLATFORM_NWPSERIAL
1387 tristate "NWP serial port driver"
1388 depends on PPC_OF && PPC_DCR
1389 select SERIAL_OF_PLATFORM
1390 select SERIAL_CORE_CONSOLE
1393 This driver supports the cell network processor nwp serial
1396 config SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE
1397 bool "Console on NWP serial port"
1398 depends on SERIAL_OF_PLATFORM_NWPSERIAL=y
1399 select SERIAL_CORE_CONSOLE
1401 Support for Console on the NWP serial ports.
1404 tristate "Freescale QUICC Engine serial port support"
1405 depends on QUICC_ENGINE
1410 This driver supports the QE serial ports on Freescale embedded
1411 PowerPC that contain a QUICC Engine.
1413 config SERIAL_SC26XX
1414 tristate "SC2681/SC2692 serial port support"
1418 This is a driver for the onboard serial ports of
1419 older RM400 machines.
1421 config SERIAL_SC26XX_CONSOLE
1422 bool "Console on SC2681/SC2692 serial port"
1423 depends on SERIAL_SC26XX
1424 select SERIAL_CORE_CONSOLE
1426 Support for Console on SC2681/SC2692 serial ports.
1428 config SERIAL_BFIN_SPORT
1429 tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
1430 depends on BLACKFIN && EXPERIMENTAL
1433 Enable SPORT emulate UART on Blackfin series.
1435 To compile this driver as a module, choose M here: the
1436 module will be called bfin_sport_uart.
1439 prompt "Baud rate for Blackfin SPORT UART"
1440 depends on SERIAL_BFIN_SPORT
1441 default SERIAL_SPORT_BAUD_RATE_57600
1443 Choose a baud rate for the SPORT UART, other uart settings are
1444 8 bit, 1 stop bit, no parity, no flow control.
1446 config SERIAL_SPORT_BAUD_RATE_115200
1449 config SERIAL_SPORT_BAUD_RATE_57600
1452 config SERIAL_SPORT_BAUD_RATE_38400
1455 config SERIAL_SPORT_BAUD_RATE_19200
1458 config SERIAL_SPORT_BAUD_RATE_9600
1462 config SPORT_BAUD_RATE
1464 depends on SERIAL_BFIN_SPORT
1465 default 115200 if (SERIAL_SPORT_BAUD_RATE_115200)
1466 default 57600 if (SERIAL_SPORT_BAUD_RATE_57600)
1467 default 38400 if (SERIAL_SPORT_BAUD_RATE_38400)
1468 default 19200 if (SERIAL_SPORT_BAUD_RATE_19200)
1469 default 9600 if (SERIAL_SPORT_BAUD_RATE_9600)
1471 config SERIAL_TIMBERDALE
1472 tristate "Support for timberdale UART"
1473 depends on MFD_TIMBERDALE
1476 Add support for UART controller on timberdale.
1478 config SERIAL_BCM63XX
1479 tristate "bcm63xx serial port support"
1483 If you have a bcm63xx CPU, you can enable its onboard
1484 serial port by enabling this options.
1486 To compile this driver as a module, choose M here: the
1487 module will be called bcm963xx_uart.
1489 config SERIAL_BCM63XX_CONSOLE
1490 bool "Console on bcm63xx serial port"
1491 depends on SERIAL_BCM63XX=y
1492 select SERIAL_CORE_CONSOLE
1494 If you have enabled the serial port on the bcm63xx CPU
1495 you can make it the console by answering Y to this option.
1497 config SERIAL_GRLIB_GAISLER_APBUART
1498 tristate "GRLIB APBUART serial support"
1501 Add support for the GRLIB APBUART serial port.
1503 config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1504 bool "Console on GRLIB APBUART serial port"
1505 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1506 select SERIAL_CORE_CONSOLE
1508 Support for running a console on the GRLIB APBUART