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
514 bool "DECstation DZ serial driver"
515 depends on MACH_DECSTATION && 32BIT
519 DZ11-family serial controllers for DECstations and VAXstations,
520 including the DC7085, M7814, and M7819.
522 config SERIAL_DZ_CONSOLE
523 bool "Support console on DECstation DZ serial driver"
524 depends on SERIAL_DZ=y
525 select SERIAL_CORE_CONSOLE
528 If you say Y here, it will be possible to use a serial port as the
529 system console (the system console is the device which receives all
530 kernel messages and warnings and which allows logins in single user
533 Note that the firmware uses ttyS3 as the serial console on
534 DECstations that use this driver.
539 tristate "DECstation Z85C30 serial support"
540 depends on MACH_DECSTATION
544 Support for the Zilog 85C350 serial communications controller used
545 for serial ports in newer DECstation systems. These include the
546 DECsystem 5900 and all models of the DECstation and DECsystem 5000
547 systems except from model 200.
549 If unsure, say Y. To compile this driver as a module, choose M here:
550 the module will be called zs.
552 config SERIAL_ZS_CONSOLE
553 bool "Support for console on a DECstation Z85C30 serial port"
554 depends on SERIAL_ZS=y
555 select SERIAL_CORE_CONSOLE
558 If you say Y here, it will be possible to use a serial port as the
559 system console (the system console is the device which receives all
560 kernel messages and warnings and which allows logins in single user
563 Note that the firmware uses ttyS1 as the serial console on the
564 Maxine and ttyS3 on the others using this driver.
569 tristate "DC21285 serial port support"
570 depends on ARM && FOOTBRIDGE
573 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
574 PCI bridge you can enable its onboard serial port by enabling this
577 config SERIAL_21285_CONSOLE
578 bool "Console on DC21285 serial port"
579 depends on SERIAL_21285=y
580 select SERIAL_CORE_CONSOLE
582 If you have enabled the serial port on the 21285 footbridge you can
583 make it the console by answering Y to this option.
585 Even if you say Y here, the currently visible virtual console
586 (/dev/tty0) will still be used as the system console by default, but
587 you can alter that using a kernel command line option such as
588 "console=ttyFB". (Try "man bootparam" or see the documentation of
589 your boot loader (lilo or loadlin) about how to pass options to the
590 kernel at boot time.)
593 bool "Marvell MPSC serial port support"
594 depends on PPC32 && MV64X60
597 Say Y here if you want to use the Marvell MPSC serial controller.
599 config SERIAL_MPSC_CONSOLE
600 bool "Support for console on Marvell MPSC serial port"
601 depends on SERIAL_MPSC
602 select SERIAL_CORE_CONSOLE
604 Say Y here if you want to support a serial console on a Marvell MPSC.
607 bool "PXA serial port support"
608 depends on ARM && ARCH_PXA
611 If you have a machine based on an Intel XScale PXA2xx CPU you
612 can enable its onboard serial ports by enabling this option.
614 config SERIAL_PXA_CONSOLE
615 bool "Console on PXA serial port"
616 depends on SERIAL_PXA
617 select SERIAL_CORE_CONSOLE
619 If you have enabled the serial port on the Intel XScale PXA
620 CPU you can make it the console by answering Y to this option.
622 Even if you say Y here, the currently visible virtual console
623 (/dev/tty0) will still be used as the system console by default, but
624 you can alter that using a kernel command line option such as
625 "console=ttySA0". (Try "man bootparam" or see the documentation of
626 your boot loader (lilo or loadlin) about how to pass options to the
627 kernel at boot time.)
630 bool "SA1100 serial port support"
631 depends on ARM && ARCH_SA1100
634 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
635 can enable its onboard serial port by enabling this option.
636 Please read <file:Documentation/arm/SA1100/serial_UART> for further
639 config SERIAL_SA1100_CONSOLE
640 bool "Console on SA1100 serial port"
641 depends on SERIAL_SA1100
642 select SERIAL_CORE_CONSOLE
644 If you have enabled the serial port on the SA1100/SA1110 StrongARM
645 CPU you can make it the console by answering Y to this option.
647 Even if you say Y here, the currently visible virtual console
648 (/dev/tty0) will still be used as the system console by default, but
649 you can alter that using a kernel command line option such as
650 "console=ttySA0". (Try "man bootparam" or see the documentation of
651 your boot loader (lilo or loadlin) about how to pass options to the
652 kernel at boot time.)
655 tristate "Blackfin serial port support"
658 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
660 Add support for the built-in UARTs on the Blackfin.
662 To compile this driver as a module, choose M here: the
663 module will be called bfin_5xx.
665 config SERIAL_BFIN_CONSOLE
666 bool "Console on Blackfin serial port"
667 depends on SERIAL_BFIN=y
668 select SERIAL_CORE_CONSOLE
672 depends on SERIAL_BFIN
673 default SERIAL_BFIN_DMA
675 This driver supports the built-in serial ports of the Blackfin family
678 config SERIAL_BFIN_DMA
680 depends on !DMA_UNCACHED_NONE && !KGDB_UART
682 This driver works under DMA mode. If this option is selected, the
683 blackfin simple dma driver is also enabled.
685 config SERIAL_BFIN_PIO
688 This driver works under PIO mode.
692 config SERIAL_BFIN_UART0
694 depends on SERIAL_BFIN
698 config BFIN_UART0_CTSRTS
699 bool "Enable UART0 hardware flow control"
700 depends on SERIAL_BFIN_UART0
702 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
707 depends on BFIN_UART0_CTSRTS
710 The default pin is GPIO_GP7.
711 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
715 depends on BFIN_UART0_CTSRTS
718 The default pin is GPIO_GP6.
719 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
721 config SERIAL_BFIN_UART1
723 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
727 config BFIN_UART1_CTSRTS
728 bool "Enable UART1 hardware flow control"
729 depends on SERIAL_BFIN_UART1
731 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
736 depends on BFIN_UART1_CTSRTS && !BF54x
739 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
743 depends on BFIN_UART1_CTSRTS && !BF54x
746 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
748 config SERIAL_BFIN_UART2
750 depends on SERIAL_BFIN && (BF54x)
754 config BFIN_UART2_CTSRTS
755 bool "Enable UART2 hardware flow control"
756 depends on SERIAL_BFIN_UART2
758 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
763 depends on BFIN_UART2_CTSRTS
766 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
770 depends on BFIN_UART2_CTSRTS
773 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
775 config SERIAL_BFIN_UART3
777 depends on SERIAL_BFIN && (BF54x)
781 config BFIN_UART3_CTSRTS
782 bool "Enable UART3 hardware flow control"
783 depends on SERIAL_BFIN_UART3
785 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
789 bool "IMX serial port support"
790 depends on ARM && (ARCH_IMX || ARCH_MXC)
793 If you have a machine based on a Motorola IMX CPU you
794 can enable its onboard serial port by enabling this option.
796 config SERIAL_IMX_CONSOLE
797 bool "Console on IMX serial port"
798 depends on SERIAL_IMX
799 select SERIAL_CORE_CONSOLE
801 If you have enabled the serial port on the Motorola IMX
802 CPU you can make it the console by answering Y to this option.
804 Even if you say Y here, the currently visible virtual console
805 (/dev/tty0) will still be used as the system console by default, but
806 you can alter that using a kernel command line option such as
807 "console=ttySA0". (Try "man bootparam" or see the documentation of
808 your boot loader (lilo or loadlin) about how to pass options to the
809 kernel at boot time.)
811 config SERIAL_UARTLITE
812 tristate "Xilinx uartlite serial port support"
816 Say Y here if you want to use the Xilinx uartlite serial controller.
818 To compile this driver as a module, choose M here: the
819 module will be called uartlite.ko.
821 config SERIAL_UARTLITE_CONSOLE
822 bool "Support for console on Xilinx uartlite serial port"
823 depends on SERIAL_UARTLITE=y
824 select SERIAL_CORE_CONSOLE
826 Say Y here if you wish to use a Xilinx uartlite as the system
827 console (the system console is the device which receives all kernel
828 messages and warnings and which allows logins in single user mode).
830 config SERIAL_SUNCORE
834 select SERIAL_CORE_CONSOLE
837 config SERIAL_SUNZILOG
838 tristate "Sun Zilog8530 serial support"
841 This driver supports the Zilog8530 serial ports found on many Sparc
842 systems. Say Y or M if you want to be able to these serial ports.
844 config SERIAL_SUNZILOG_CONSOLE
845 bool "Console on Sun Zilog8530 serial port"
846 depends on SERIAL_SUNZILOG=y
848 If you would like to be able to use the Zilog8530 serial port
849 on your Sparc system as the console, you can do so by answering
853 tristate "Sun SU serial support"
854 depends on SPARC && PCI
856 This driver supports the 8250 serial ports that run the keyboard and
857 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
858 to these serial ports.
860 config SERIAL_SUNSU_CONSOLE
861 bool "Console on Sun SU serial port"
862 depends on SERIAL_SUNSU=y
864 If you would like to be able to use the SU serial port
865 on your Sparc system as the console, you can do so by answering
869 tristate "Serial MUX support"
874 Saying Y here will enable the hardware MUX serial driver for
875 the Nova, K class systems and D class with a 'remote control card'.
876 The hardware MUX is not 8250/16550 compatible therefore the
877 /dev/ttyB0 device is shared between the Serial MUX and the PDC
878 software console. The following steps need to be completed to use
881 1. create the device entry (mknod /dev/ttyB0 c 11 0)
882 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
883 3. Add device ttyB0 to /etc/securetty (if you want to log on as
884 root on this console.)
885 4. Change the kernel command console parameter to: console=ttyB0
887 config SERIAL_MUX_CONSOLE
888 bool "Support for console on serial MUX"
889 depends on SERIAL_MUX=y
890 select SERIAL_CORE_CONSOLE
894 bool "PDC software console support"
895 depends on PARISC && !SERIAL_MUX && VT
898 Saying Y here will enable the software based PDC console to be
899 used as the system console. This is useful for machines in
900 which the hardware based console has not been written yet. The
901 following steps must be competed to use the PDC console:
903 1. create the device entry (mknod /dev/ttyB0 c 11 0)
904 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
905 3. Add device ttyB0 to /etc/securetty (if you want to log on as
906 root on this console.)
907 4. Change the kernel command console parameter to: console=ttyB0
910 tristate "Sun Siemens SAB82532 serial support"
911 depends on SPARC && PCI
913 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
914 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
917 config SERIAL_SUNSAB_CONSOLE
918 bool "Console on Sun Siemens SAB82532 serial port"
919 depends on SERIAL_SUNSAB=y
921 If you would like to be able to use the SAB82532 serial port
922 on your Sparc system as the console, you can do so by answering
926 bool "Sun4v Hypervisor Console support"
929 This driver supports the console device found on SUN4V Sparc
930 systems. Say Y if you want to be able to use this device.
932 config SERIAL_IP22_ZILOG
933 tristate "SGI Zilog8530 serial support"
934 depends on SGI_HAS_ZILOG
937 This driver supports the Zilog8530 serial ports found on SGI
938 systems. Say Y or M if you want to be able to these serial ports.
940 config SERIAL_IP22_ZILOG_CONSOLE
941 bool "Console on SGI Zilog8530 serial port"
942 depends on SERIAL_IP22_ZILOG=y
943 select SERIAL_CORE_CONSOLE
946 tristate "SuperH SCI(F) serial port support"
947 depends on SUPERH || H8300
950 config SERIAL_SH_SCI_NR_UARTS
951 int "Maximum number of SCI(F) serial ports"
952 depends on SERIAL_SH_SCI
955 config SERIAL_SH_SCI_CONSOLE
956 bool "Support for console on SuperH SCI(F)"
957 depends on SERIAL_SH_SCI=y
958 select SERIAL_CORE_CONSOLE
960 config SERIAL_PNX8XXX
961 bool "Enable PNX8XXX SoCs' UART Support"
962 depends on MIPS && SOC_PNX8550
965 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
966 and you want to use serial ports, say Y. Otherwise, say N.
968 config SERIAL_PNX8XXX_CONSOLE
969 bool "Enable PNX8XX0 serial console"
970 depends on SERIAL_PNX8XXX
971 select SERIAL_CORE_CONSOLE
973 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
974 and you want to use serial console, say Y. Otherwise, say N.
979 config SERIAL_CORE_CONSOLE
986 bool "68328 serial support"
987 depends on M68328 || M68EZ328 || M68VZ328
989 This driver supports the built-in serial port of the Motorola 68328
990 (standard, EZ and VZ varieties).
992 config SERIAL_68328_RTS_CTS
993 bool "Support RTS/CTS on 68328 serial port"
994 depends on SERIAL_68328
997 bool "Coldfire serial support"
1001 This serial driver supports the Freescale Coldfire serial ports.
1003 config SERIAL_MCF_BAUDRATE
1004 int "Default baudrate for Coldfire serial ports"
1005 depends on SERIAL_MCF
1008 This setting lets you define what the default baudrate is for the
1009 ColdFire serial ports. The usual default varies from board to board,
1010 and this setting is a way of catering for that.
1012 config SERIAL_MCF_CONSOLE
1013 bool "Coldfire serial console support"
1014 depends on SERIAL_MCF
1015 select SERIAL_CORE_CONSOLE
1017 Enable a ColdFire internal serial port to be the system console.
1019 config SERIAL_68360_SMC
1020 bool "68360 SMC uart support"
1023 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1025 config SERIAL_68360_SCC
1026 bool "68360 SCC uart support"
1029 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1033 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1036 config SERIAL_PMACZILOG
1037 tristate "PowerMac z85c30 ESCC support"
1038 depends on PPC_OF && PPC_PMAC
1041 This driver supports the Zilog z85C30 serial ports found on
1043 Say Y or M if you want to be able to these serial ports.
1045 config SERIAL_PMACZILOG_TTYS
1046 bool "Use ttySn device nodes for Zilog z85c30"
1047 depends on SERIAL_PMACZILOG
1049 The pmac_zilog driver for the z85C30 chip on many powermacs
1050 historically used the device numbers for /dev/ttySn. The
1051 8250 serial port driver also uses these numbers, which means
1052 the two drivers being unable to coexist; you could not use
1053 both z85C30 and 8250 type ports at the same time.
1055 If this option is not selected, the pmac_zilog driver will
1056 use the device numbers allocated for /dev/ttyPZn. This allows
1057 the pmac_zilog and 8250 drivers to co-exist, but may cause
1058 existing userspace setups to break. Programs that need to
1059 access the built-in serial ports on powermacs will need to
1060 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1062 If you enable this option, any z85c30 ports in the system will
1063 be registered as ttyS0 onwards as in the past, and you will be
1064 unable to use the 8250 module for PCMCIA or other 16C550-style
1067 Say N unless you need the z85c30 ports on your powermac
1068 to appear as /dev/ttySn.
1070 config SERIAL_PMACZILOG_CONSOLE
1071 bool "Console on PowerMac z85c30 serial port"
1072 depends on SERIAL_PMACZILOG=y
1073 select SERIAL_CORE_CONSOLE
1075 If you would like to be able to use the z85c30 serial port
1076 on your PowerMac as the console, you can do so by answering
1079 config SERIAL_LH7A40X
1080 tristate "Sharp LH7A40X embedded UART support"
1081 depends on ARM && ARCH_LH7A40X
1084 This enables support for the three on-board UARTs of the
1085 Sharp LH7A40X series CPUs. Choose Y or M.
1087 config SERIAL_LH7A40X_CONSOLE
1088 bool "Support for console on Sharp LH7A40X serial port"
1089 depends on SERIAL_LH7A40X=y
1090 select SERIAL_CORE_CONSOLE
1092 Say Y here if you wish to use one of the serial ports as the
1093 system console--the system console is the device which
1094 receives all kernel messages and warnings and which allows
1095 logins in single user mode.
1097 Even if you say Y here, the currently visible framebuffer console
1098 (/dev/tty0) will still be used as the default system console, but
1099 you can alter that using a kernel command line, for example
1103 tristate "CPM SCC/SMC serial port support"
1104 depends on CPM2 || 8xx
1107 This driver supports the SCC and SMC serial ports on Motorola
1108 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1110 config SERIAL_CPM_CONSOLE
1111 bool "Support for console on CPM SCC/SMC serial port"
1112 depends on SERIAL_CPM=y
1113 select SERIAL_CORE_CONSOLE
1115 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1116 console (the system console is the device which receives all kernel
1117 messages and warnings and which allows logins in single user mode).
1119 Even if you say Y here, the currently visible framebuffer console
1120 (/dev/tty0) will still be used as the system console by default, but
1121 you can alter that using a kernel command line option such as
1122 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1123 your boot loader (lilo or loadlin) about how to pass options to the
1124 kernel at boot time.)
1126 config SERIAL_SGI_L1_CONSOLE
1127 bool "SGI Altix L1 serial console support"
1128 depends on IA64_GENERIC || IA64_SGI_SN2
1130 select SERIAL_CORE_CONSOLE
1132 If you have an SGI Altix and you would like to use the system
1133 controller serial port as your console (you want this!),
1134 say Y. Otherwise, say N.
1136 config SERIAL_MPC52xx
1137 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
1138 depends on PPC_MPC52xx || PPC_MPC512x
1141 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
1142 like to use them, you must answer Y or M to this option. Note that
1143 for use as console, it must be included in kernel and not as a
1146 config SERIAL_MPC52xx_CONSOLE
1147 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
1148 depends on SERIAL_MPC52xx=y
1149 select SERIAL_CORE_CONSOLE
1151 Select this options if you'd like to use one of the PSC serial port
1152 of the Freescale MPC52xx family as a console.
1154 config SERIAL_MPC52xx_CONSOLE_BAUD
1155 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
1156 depends on SERIAL_MPC52xx_CONSOLE=y
1159 Select the MPC52xx console baud rate.
1160 This value is only used if the bootloader doesn't pass in the
1164 tristate "IBM Multiport Serial Adapter"
1165 depends on PCI && (PPC_ISERIES || PPC_PSERIES)
1169 This driver is for a family of multiport serial adapters
1170 including 2 port RVX, 2 port internal modem, 4 port internal
1171 modem and a split 1 port RVX and 1 port internal modem.
1173 This driver can also be built as a module. If so, the module
1174 will be called icom.
1176 config SERIAL_M32R_SIO
1182 Say Y here if you want to use the M32R serial controller.
1184 config SERIAL_M32R_SIO_CONSOLE
1185 bool "use SIO console"
1186 depends on SERIAL_M32R_SIO=y
1187 select SERIAL_CORE_CONSOLE
1189 Say Y here if you want to support a serial console.
1191 If you use an M3T-M32700UT or an OPSPUT platform,
1192 please say also y for SERIAL_M32R_PLDSIO.
1194 config SERIAL_M32R_PLDSIO
1195 bool "M32R SIO I/F on a PLD"
1196 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1199 Say Y here if you want to use the M32R serial controller
1200 on a PLD (Programmable Logic Device).
1202 If you use an M3T-M32700UT or an OPSPUT platform,
1206 bool "TMPTX39XX/49XX SIO support"
1207 depends on HAS_TXX9_SERIAL
1211 config HAS_TXX9_SERIAL
1214 config SERIAL_TXX9_NR_UARTS
1215 int "Maximum number of TMPTX39XX/49XX SIO ports"
1216 depends on SERIAL_TXX9
1219 config SERIAL_TXX9_CONSOLE
1220 bool "TMPTX39XX/49XX SIO Console support"
1221 depends on SERIAL_TXX9=y
1222 select SERIAL_CORE_CONSOLE
1224 config SERIAL_TXX9_STDSERIAL
1225 bool "TX39XX/49XX SIO act as standard serial"
1226 depends on !SERIAL_8250 && SERIAL_TXX9
1228 config SERIAL_VR41XX
1229 tristate "NEC VR4100 series Serial Interface Unit support"
1230 depends on CPU_VR41XX
1233 If you have a NEC VR4100 series processor and you want to use
1234 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1235 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1237 config SERIAL_VR41XX_CONSOLE
1238 bool "Enable NEC VR4100 series Serial Interface Unit console"
1239 depends on SERIAL_VR41XX=y
1240 select SERIAL_CORE_CONSOLE
1242 If you have a NEC VR4100 series processor and you want to use
1243 a console on a serial port, say Y. Otherwise, say N.
1246 tristate "Digi International NEO PCI Support"
1250 This is a driver for Digi International's Neo series
1251 of cards which provide multiple serial ports. You would need
1252 something like this to connect more than two modems to your Linux
1253 box, for instance in order to become a dial-in server. This driver
1254 supports PCI boards only.
1256 If you have a card like this, say Y here, otherwise say N.
1258 To compile this driver as a module, choose M here: the
1259 module will be called jsm.
1261 config SERIAL_SGI_IOC4
1262 tristate "SGI IOC4 controller serial support"
1263 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1266 If you have an SGI Altix with an IOC4 based Base IO card
1267 and wish to use the serial ports on this card, say Y.
1270 config SERIAL_SGI_IOC3
1271 tristate "SGI Altix IOC3 serial support"
1272 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1275 If you have an SGI Altix with an IOC3 serial card,
1276 say Y or M. Otherwise, say N.
1279 tristate "NetX serial port support"
1280 depends on ARM && ARCH_NETX
1283 If you have a machine based on a Hilscher NetX SoC you
1284 can enable its onboard serial port by enabling this option.
1286 To compile this driver as a module, choose M here: the
1287 module will be called netx-serial.
1289 config SERIAL_NETX_CONSOLE
1290 bool "Console on NetX serial port"
1291 depends on SERIAL_NETX=y
1292 select SERIAL_CORE_CONSOLE
1294 If you have enabled the serial port on the Hilscher NetX SoC
1295 you can make it the console by answering Y to this option.
1297 config SERIAL_OF_PLATFORM
1298 tristate "Serial port on Open Firmware platform bus"
1300 depends on SERIAL_8250
1302 If you have a PowerPC based system that has serial ports
1303 on a platform specific bus, you should enable this option.
1304 Currently, only 8250 compatible ports are supported, but
1305 others can easily be added.
1308 tristate "Freescale QUICC Engine serial port support"
1309 depends on QUICC_ENGINE
1314 This driver supports the QE serial ports on Freescale embedded
1315 PowerPC that contain a QUICC Engine.
1317 config SERIAL_SC26XX
1318 tristate "SC2681/SC2692 serial port support"
1322 This is a driver for the onboard serial ports of
1323 older RM400 machines.
1325 config SERIAL_SC26XX_CONSOLE
1326 bool "Console on SC2681/SC2692 serial port"
1327 depends on SERIAL_SC26XX
1328 select SERIAL_CORE_CONSOLE
1330 Support for Console on SC2681/SC2692 serial ports.
1332 config SERIAL_BFIN_SPORT
1333 tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
1334 depends on BLACKFIN && EXPERIMENTAL
1337 Enble support SPORT emulate UART on Blackfin series.
1339 To compile this driver as a module, choose M here: the
1340 module will be called bfin_sport_uart.
1343 prompt "Baud rate for Blackfin SPORT UART"
1344 depends on SERIAL_BFIN_SPORT
1345 default SERIAL_SPORT_BAUD_RATE_57600
1347 Choose a baud rate for the SPORT UART, other uart settings are
1348 8 bit, 1 stop bit, no parity, no flow control.
1350 config SERIAL_SPORT_BAUD_RATE_115200
1353 config SERIAL_SPORT_BAUD_RATE_57600
1356 config SERIAL_SPORT_BAUD_RATE_38400
1359 config SERIAL_SPORT_BAUD_RATE_19200
1362 config SERIAL_SPORT_BAUD_RATE_9600
1366 config SPORT_BAUD_RATE
1368 depends on SERIAL_BFIN_SPORT
1369 default 115200 if (SERIAL_SPORT_BAUD_RATE_115200)
1370 default 57600 if (SERIAL_SPORT_BAUD_RATE_57600)
1371 default 38400 if (SERIAL_SPORT_BAUD_RATE_38400)
1372 default 19200 if (SERIAL_SPORT_BAUD_RATE_19200)
1373 default 9600 if (SERIAL_SPORT_BAUD_RATE_9600)