2 # Serial device configuration
4 # $Id: Kconfig,v 1.11 2004/03/11 18:08:04 lethal Exp $
11 # The new 8250/16550 serial drivers
13 tristate "8250/16550 and compatible serial support"
14 depends on (BROKEN || !SPARC)
17 This selects whether you want to include the driver for the standard
18 serial ports. The standard answer is Y. People who might say N
19 here are those that are setting up dedicated Ethernet WWW/FTP
20 servers, or users that have one of the various bus mice instead of a
21 serial mouse and don't intend to use their machine's standard serial
22 port for anything. (Note that the Cyclades and Stallion multi
23 serial port drivers do not need this driver built in for them to
26 To compile this driver as a module, choose M here: the
27 module will be called 8250.
28 [WARNING: Do not compile this driver as a module if you are using
29 non-standard serial ports, since the configuration information will
30 be lost when the driver is unloaded. This limitation may be lifted
33 BTW1: If you have a mouseman serial mouse which is not recognized by
34 the X window system, try running gpm first.
36 BTW2: If you intend to use a software modem (also called Winmodem)
37 under Linux, forget it. These modems are crippled and require
38 proprietary drivers which are only available under Windows.
40 Most people will say Y or M here, so that they can use serial mice,
41 modems and similar devices connecting to the standard serial ports.
43 config SERIAL_8250_CONSOLE
44 bool "Console on 8250/16550 and compatible serial port"
45 depends on SERIAL_8250=y
46 select SERIAL_CORE_CONSOLE
48 If you say Y here, it will be possible to use a serial port as the
49 system console (the system console is the device which receives all
50 kernel messages and warnings and which allows logins in single user
51 mode). This could be useful if some terminal or printer is connected
54 Even if you say Y here, the currently visible virtual console
55 (/dev/tty0) will still be used as the system console by default, but
56 you can alter that using a kernel command line option such as
57 "console=ttyS1". (Try "man bootparam" or see the documentation of
58 your boot loader (grub or lilo or loadlin) about how to pass options
59 to the kernel at boot time.)
61 If you don't have a VGA card installed and you say Y here, the
62 kernel will automatically use the first serial line, /dev/ttyS0, as
65 You can set that using a kernel command line option such as
66 "console=uart8250,io,0x3f8,9600n8"
67 "console=uart8250,mmio,0xff5e0000,115200n8".
68 and it will switch to normal serial console when the corresponding
70 "earlycon=uart8250,io,0x3f8,9600n8"
71 "earlycon=uart8250,mmio,0xff5e0000,115200n8".
72 it will not only setup early console.
76 config FIX_EARLYCON_MEM
81 config SERIAL_8250_GSC
83 depends on SERIAL_8250 && GSC
86 config SERIAL_8250_PCI
87 tristate "8250/16550 PCI device support" if EMBEDDED
88 depends on SERIAL_8250 && PCI
91 This builds standard PCI serial support. You may be able to
92 disable this feature if you only need legacy serial support.
95 config SERIAL_8250_PNP
96 tristate "8250/16550 PNP device support" if EMBEDDED
97 depends on SERIAL_8250 && PNP
100 This builds standard PNP serial support. You may be able to
101 disable this feature if you only need legacy serial support.
103 config SERIAL_8250_HP300
105 depends on SERIAL_8250 && HP300
108 config SERIAL_8250_CS
109 tristate "8250/16550 PCMCIA device support"
110 depends on PCMCIA && SERIAL_8250
112 Say Y here to enable support for 16-bit PCMCIA serial devices,
113 including serial port cards, modems, and the modem functions of
114 multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
115 credit-card size devices often used with laptops.)
117 To compile this driver as a module, choose M here: the
118 module will be called serial_cs.
122 config SERIAL_8250_NR_UARTS
123 int "Maximum number of 8250/16550 serial ports"
124 depends on SERIAL_8250
127 Set this to the number of serial ports you want the driver
128 to support. This includes any ports discovered via ACPI or
129 PCI enumeration and any ports that may be added at run-time
130 via hot-plug, or any ISA multi-port serial cards.
132 config SERIAL_8250_RUNTIME_UARTS
133 int "Number of 8250/16550 serial ports to register at runtime"
134 depends on SERIAL_8250
135 range 0 SERIAL_8250_NR_UARTS
138 Set this to the maximum number of serial ports you want
139 the kernel to register at boot time. This can be overridden
140 with the module parameter "nr_uarts", or boot-time parameter
143 config SERIAL_8250_EXTENDED
144 bool "Extended 8250/16550 serial driver options"
145 depends on SERIAL_8250
147 If you wish to use any non-standard features of the standard "dumb"
148 driver, say Y here. This includes HUB6 support, shared serial
149 interrupts, special multiport support, support for more than the
150 four COM 1/2/3/4 boards, etc.
152 Note that the answer to this question won't directly affect the
153 kernel: saying N will just cause the configurator to skip all
154 the questions about serial driver options. If unsure, say N.
156 config SERIAL_8250_MANY_PORTS
157 bool "Support more than 4 legacy serial ports"
158 depends on SERIAL_8250_EXTENDED && !IA64
160 Say Y here if you have dumb serial boards other than the four
161 standard COM 1/2/3/4 ports. This may happen if you have an AST
162 FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
163 from <http://www.tldp.org/docs.html#howto>), or other custom
164 serial port hardware which acts similar to standard serial port
165 hardware. If you only use the standard COM 1/2/3/4 ports, you can
166 say N here to save some memory. You can also say Y if you have an
167 "intelligent" multiport card such as Cyclades, Digiboards, etc.
170 # Multi-port serial cards
173 config SERIAL_8250_FOURPORT
174 tristate "Support Fourport cards"
175 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
177 Say Y here if you have an AST FourPort serial board.
179 To compile this driver as a module, choose M here: the module
180 will be called 8250_fourport.
182 config SERIAL_8250_ACCENT
183 tristate "Support Accent cards"
184 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
186 Say Y here if you have an Accent Async serial board.
188 To compile this driver as a module, choose M here: the module
189 will be called 8250_accent.
191 config SERIAL_8250_BOCA
192 tristate "Support Boca cards"
193 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
195 Say Y here if you have a Boca serial board. Please read the Boca
196 mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>
198 To compile this driver as a module, choose M here: the module
199 will be called 8250_boca.
201 config SERIAL_8250_EXAR_ST16C554
202 tristate "Support Exar ST16C554/554D Quad UART"
203 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
205 The Uplogix Envoy TU301 uses this Exar Quad UART. If you are
206 tinkering with your Envoy TU301, or have a machine with this UART,
209 To compile this driver as a module, choose M here: the module
210 will be called 8250_exar_st16c554.
212 config SERIAL_8250_HUB6
213 tristate "Support Hub6 cards"
214 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
216 Say Y here if you have a HUB6 serial board.
218 To compile this driver as a module, choose M here: the module
219 will be called 8250_hub6.
221 config SERIAL_8250_SHARE_IRQ
222 bool "Support for sharing serial interrupts"
223 depends on SERIAL_8250_EXTENDED
225 Some serial boards have hardware support which allows multiple dumb
226 serial ports on the same board to share a single IRQ. To enable
227 support for this in the serial driver, say Y here.
229 config SERIAL_8250_DETECT_IRQ
230 bool "Autodetect IRQ on standard ports (unsafe)"
231 depends on SERIAL_8250_EXTENDED
233 Say Y here if you want the kernel to try to guess which IRQ
234 to use for your serial port.
236 This is considered unsafe; it is far better to configure the IRQ in
237 a boot script using the setserial command.
241 config SERIAL_8250_RSA
242 bool "Support RSA serial ports"
243 depends on SERIAL_8250_EXTENDED
245 ::: To be written :::
247 config SERIAL_8250_MCA
248 tristate "Support 8250-type ports on MCA buses"
249 depends on SERIAL_8250 != n && MCA
251 Say Y here if you have a MCA serial ports.
253 To compile this driver as a module, choose M here: the module
254 will be called 8250_mca.
256 config SERIAL_8250_ACORN
257 tristate "Acorn expansion card serial port support"
258 depends on ARCH_ACORN && SERIAL_8250
260 If you have an Atomwide Serial card or Serial Port card for an Acorn
261 system, say Y to this option. The driver can handle 1, 2, or 3 port
262 cards. If unsure, say N.
264 config SERIAL_8250_AU1X00
265 bool "AU1X00 serial port support"
266 depends on SERIAL_8250 != n && SOC_AU1X00
268 If you have an Au1x00 board and want to use the serial port, say Y
269 to this option. The driver can handle 1 or 2 serial ports.
272 config SERIAL_8250_RM9K
273 bool "Support for MIPS RM9xxx integrated serial port"
274 depends on SERIAL_8250 != n && SERIAL_RM9000
275 select SERIAL_8250_SHARE_IRQ
277 Selecting this option will add support for the integrated serial
278 port hardware found on MIPS RM9122 and similar processors.
281 comment "Non-8250 serial port support"
283 config SERIAL_AMBA_PL010
284 tristate "ARM AMBA PL010 serial port support"
285 depends on ARM_AMBA && (BROKEN || !ARCH_VERSATILE)
288 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have
289 an Integrator/AP or Integrator/PP2 platform, or if you have a
290 Cirrus Logic EP93xx CPU, say Y or M here.
294 config SERIAL_AMBA_PL010_CONSOLE
295 bool "Support for console on AMBA serial port"
296 depends on SERIAL_AMBA_PL010=y
297 select SERIAL_CORE_CONSOLE
299 Say Y here if you wish to use an AMBA PrimeCell UART as the system
300 console (the system console is the device which receives all kernel
301 messages and warnings and which allows logins in single user mode).
303 Even if you say Y here, the currently visible framebuffer console
304 (/dev/tty0) will still be used as the system console by default, but
305 you can alter that using a kernel command line option such as
306 "console=ttyAM0". (Try "man bootparam" or see the documentation of
307 your boot loader (lilo or loadlin) about how to pass options to the
308 kernel at boot time.)
310 config SERIAL_AMBA_PL011
311 tristate "ARM AMBA PL011 serial port support"
315 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have
316 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
321 config SERIAL_AMBA_PL011_CONSOLE
322 bool "Support for console on AMBA serial port"
323 depends on SERIAL_AMBA_PL011=y
324 select SERIAL_CORE_CONSOLE
326 Say Y here if you wish to use an AMBA PrimeCell UART as the system
327 console (the system console is the device which receives all kernel
328 messages and warnings and which allows logins in single user mode).
330 Even if you say Y here, the currently visible framebuffer console
331 (/dev/tty0) will still be used as the system console by default, but
332 you can alter that using a kernel command line option such as
333 "console=ttyAMA0". (Try "man bootparam" or see the documentation of
334 your boot loader (lilo or loadlin) about how to pass options to the
335 kernel at boot time.)
337 config SERIAL_SB1250_DUART
338 tristate "BCM1xxx on-chip DUART serial support"
339 depends on SIBYTE_SB1xxx_SOC=y
343 Support for the asynchronous serial interface (DUART) included in
344 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
345 the letter D in DUART stands for "dual", which is how the device
346 is implemented. Depending on the SOC configuration there may be
347 one or more DUARTs available of which all are handled.
349 If unsure, say Y. To compile this driver as a module, choose M here:
350 the module will be called sb1250-duart.
352 config SERIAL_SB1250_DUART_CONSOLE
353 bool "Support for console on a BCM1xxx DUART serial port"
354 depends on SERIAL_SB1250_DUART=y
355 select SERIAL_CORE_CONSOLE
358 If you say Y here, it will be possible to use a serial port as the
359 system console (the system console is the device which receives all
360 kernel messages and warnings and which allows logins in single user
366 bool "AT91 / AT32 on-chip serial port support"
367 depends on (ARM && ARCH_AT91) || AVR32
370 This enables the driver for the on-chip UARTs of the Atmel
371 AT91 and AT32 processors.
373 config SERIAL_ATMEL_CONSOLE
374 bool "Support for console on AT91 / AT32 serial port"
375 depends on SERIAL_ATMEL=y
376 select SERIAL_CORE_CONSOLE
378 Say Y here if you wish to use an on-chip UART on a Atmel
379 AT91 or AT32 processor as the system console (the system
380 console is the device which receives all kernel messages and
381 warnings and which allows logins in single user mode).
383 config SERIAL_ATMEL_PDC
384 bool "Support DMA transfers on AT91 / AT32 serial port"
385 depends on SERIAL_ATMEL
388 Say Y here if you wish to use the PDC to do DMA transfers to
389 and from the Atmel AT91 / AT32 serial port. In order to
390 actually use DMA transfers, make sure that the use_dma_tx
391 and use_dma_rx members in the atmel_uart_data struct is set
392 appropriately for each port.
394 Note that break and error handling currently doesn't work
395 properly when DMA is enabled. Make sure that ports where
396 this matters don't use DMA.
398 config SERIAL_ATMEL_TTYAT
399 bool "Install as device ttyATn instead of ttySn"
400 depends on SERIAL_ATMEL=y
402 Say Y here if you wish to have the internal AT91 / AT32 UARTs
403 appear as /dev/ttyATn (major 204, minor starting at 154)
404 instead of the normal /dev/ttySn (major 4, minor starting at
405 64). This is necessary if you also want other UARTs, such as
406 external 8250/16C550 compatible UARTs.
407 The ttySn nodes are legally reserved for the 8250 serial driver
408 but are often misused by other serial drivers.
410 To use this, you should create suitable ttyATn device nodes in
411 /dev/, and pass "console=ttyATn" to the kernel.
413 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
416 bool "Micrel KS8695 (Centaur) serial port support"
417 depends on ARCH_KS8695
420 This selects the Micrel Centaur KS8695 UART. Say Y here.
422 config SERIAL_KS8695_CONSOLE
423 bool "Support for console on KS8695 (Centaur) serial port"
424 depends on SERIAL_KS8695=y
425 select SERIAL_CORE_CONSOLE
427 Say Y here if you wish to use a KS8695 (Centaur) UART as the
428 system console (the system console is the device which
429 receives all kernel messages and warnings and which allows
430 logins in single user mode).
432 config SERIAL_CLPS711X
433 tristate "CLPS711X serial port support"
434 depends on ARM && ARCH_CLPS711X
437 ::: To be written :::
439 config SERIAL_CLPS711X_CONSOLE
440 bool "Support for console on CLPS711X serial port"
441 depends on SERIAL_CLPS711X=y
442 select SERIAL_CORE_CONSOLE
444 Even if you say Y here, the currently visible virtual console
445 (/dev/tty0) will still be used as the system console by default, but
446 you can alter that using a kernel command line option such as
447 "console=ttyCL1". (Try "man bootparam" or see the documentation of
448 your boot loader (lilo or loadlin) about how to pass options to the
449 kernel at boot time.)
451 config SERIAL_S3C2410
452 tristate "Samsung S3C2410/S3C2440/S3C2442/S3C2412 Serial port support"
453 depends on ARM && ARCH_S3C2410
456 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
457 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
458 provide all of these ports, depending on how the serial port
461 Currently this driver supports the UARTS on the S3C2410, S3C2440,
462 S3C2442, S3C2412 and S3C2413 CPUs.
464 config SERIAL_S3C2410_CONSOLE
465 bool "Support for console on S3C2410 serial port"
466 depends on SERIAL_S3C2410=y
467 select SERIAL_CORE_CONSOLE
469 Allow selection of the S3C24XX on-board serial ports for use as
472 Even if you say Y here, the currently visible virtual console
473 (/dev/tty0) will still be used as the system console by default, but
474 you can alter that using a kernel command line option such as
475 "console=ttySACx". (Try "man bootparam" or see the documentation of
476 your boot loader about how to pass options to the kernel at
480 bool "DECstation DZ serial driver"
481 depends on MACH_DECSTATION && 32BIT
485 DZ11-family serial controllers for DECstations and VAXstations,
486 including the DC7085, M7814, and M7819.
488 config SERIAL_DZ_CONSOLE
489 bool "Support console on DECstation DZ serial driver"
490 depends on SERIAL_DZ=y
491 select SERIAL_CORE_CONSOLE
494 If you say Y here, it will be possible to use a serial port as the
495 system console (the system console is the device which receives all
496 kernel messages and warnings and which allows logins in single user
499 Note that the firmware uses ttyS3 as the serial console on
500 DECstations that use this driver.
505 tristate "DECstation Z85C30 serial support"
506 depends on MACH_DECSTATION
510 Support for the Zilog 85C350 serial communications controller used
511 for serial ports in newer DECstation systems. These include the
512 DECsystem 5900 and all models of the DECstation and DECsystem 5000
513 systems except from model 200.
515 If unsure, say Y. To compile this driver as a module, choose M here:
516 the module will be called zs.
518 config SERIAL_ZS_CONSOLE
519 bool "Support for console on a DECstation Z85C30 serial port"
520 depends on SERIAL_ZS=y
521 select SERIAL_CORE_CONSOLE
524 If you say Y here, it will be possible to use a serial port as the
525 system console (the system console is the device which receives all
526 kernel messages and warnings and which allows logins in single user
529 Note that the firmware uses ttyS1 as the serial console on the
530 Maxine and ttyS3 on the others using this driver.
535 tristate "DC21285 serial port support"
536 depends on ARM && FOOTBRIDGE
539 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
540 PCI bridge you can enable its onboard serial port by enabling this
543 config SERIAL_21285_CONSOLE
544 bool "Console on DC21285 serial port"
545 depends on SERIAL_21285=y
546 select SERIAL_CORE_CONSOLE
548 If you have enabled the serial port on the 21285 footbridge you can
549 make it the console by answering Y to this option.
551 Even if you say Y here, the currently visible virtual console
552 (/dev/tty0) will still be used as the system console by default, but
553 you can alter that using a kernel command line option such as
554 "console=ttyFB". (Try "man bootparam" or see the documentation of
555 your boot loader (lilo or loadlin) about how to pass options to the
556 kernel at boot time.)
559 bool "Marvell MPSC serial port support"
560 depends on PPC32 && MV64X60
563 Say Y here if you want to use the Marvell MPSC serial controller.
565 config SERIAL_MPSC_CONSOLE
566 bool "Support for console on Marvell MPSC serial port"
567 depends on SERIAL_MPSC
568 select SERIAL_CORE_CONSOLE
570 Say Y here if you want to support a serial console on a Marvell MPSC.
573 bool "PXA serial port support"
574 depends on ARM && ARCH_PXA
577 If you have a machine based on an Intel XScale PXA2xx CPU you
578 can enable its onboard serial ports by enabling this option.
580 config SERIAL_PXA_CONSOLE
581 bool "Console on PXA serial port"
582 depends on SERIAL_PXA
583 select SERIAL_CORE_CONSOLE
585 If you have enabled the serial port on the Intel XScale PXA
586 CPU you can make it the console by answering Y to this option.
588 Even if you say Y here, the currently visible virtual console
589 (/dev/tty0) will still be used as the system console by default, but
590 you can alter that using a kernel command line option such as
591 "console=ttySA0". (Try "man bootparam" or see the documentation of
592 your boot loader (lilo or loadlin) about how to pass options to the
593 kernel at boot time.)
596 bool "SA1100 serial port support"
597 depends on ARM && ARCH_SA1100
600 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
601 can enable its onboard serial port by enabling this option.
602 Please read <file:Documentation/arm/SA1100/serial_UART> for further
605 config SERIAL_SA1100_CONSOLE
606 bool "Console on SA1100 serial port"
607 depends on SERIAL_SA1100
608 select SERIAL_CORE_CONSOLE
610 If you have enabled the serial port on the SA1100/SA1110 StrongARM
611 CPU you can make it the console by answering Y to this option.
613 Even if you say Y here, the currently visible virtual console
614 (/dev/tty0) will still be used as the system console by default, but
615 you can alter that using a kernel command line option such as
616 "console=ttySA0". (Try "man bootparam" or see the documentation of
617 your boot loader (lilo or loadlin) about how to pass options to the
618 kernel at boot time.)
621 tristate "Blackfin serial port support"
624 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
626 Add support for the built-in UARTs on the Blackfin.
628 To compile this driver as a module, choose M here: the
629 module will be called bfin_5xx.
631 config SERIAL_BFIN_CONSOLE
632 bool "Console on Blackfin serial port"
633 depends on SERIAL_BFIN=y
634 select SERIAL_CORE_CONSOLE
638 depends on SERIAL_BFIN
639 default SERIAL_BFIN_DMA
641 This driver supports the built-in serial ports of the Blackfin family
644 config SERIAL_BFIN_DMA
646 depends on !DMA_UNCACHED_NONE && !KGDB_UART
648 This driver works under DMA mode. If this option is selected, the
649 blackfin simple dma driver is also enabled.
651 config SERIAL_BFIN_PIO
654 This driver works under PIO mode.
658 config SERIAL_BFIN_UART0
660 depends on SERIAL_BFIN
664 config BFIN_UART0_CTSRTS
665 bool "Enable UART0 hardware flow control"
666 depends on SERIAL_BFIN_UART0
668 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
673 depends on BFIN_UART0_CTSRTS
676 The default pin is GPIO_GP7.
677 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
681 depends on BFIN_UART0_CTSRTS
684 The default pin is GPIO_GP6.
685 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
687 config SERIAL_BFIN_UART1
689 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
693 config BFIN_UART1_CTSRTS
694 bool "Enable UART1 hardware flow control"
695 depends on SERIAL_BFIN_UART1
697 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
702 depends on BFIN_UART1_CTSRTS && !BF54x
705 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
709 depends on BFIN_UART1_CTSRTS && !BF54x
712 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
714 config SERIAL_BFIN_UART2
716 depends on SERIAL_BFIN && (BF54x)
720 config BFIN_UART2_CTSRTS
721 bool "Enable UART2 hardware flow control"
722 depends on SERIAL_BFIN_UART2
724 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
729 depends on BFIN_UART2_CTSRTS
732 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
736 depends on BFIN_UART2_CTSRTS
739 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
741 config SERIAL_BFIN_UART3
743 depends on SERIAL_BFIN && (BF54x)
747 config BFIN_UART3_CTSRTS
748 bool "Enable UART3 hardware flow control"
749 depends on SERIAL_BFIN_UART3
751 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
755 bool "IMX serial port support"
756 depends on ARM && ARCH_IMX
759 If you have a machine based on a Motorola IMX CPU you
760 can enable its onboard serial port by enabling this option.
762 config SERIAL_IMX_CONSOLE
763 bool "Console on IMX serial port"
764 depends on SERIAL_IMX
765 select SERIAL_CORE_CONSOLE
767 If you have enabled the serial port on the Motorola IMX
768 CPU you can make it the console by answering Y to this option.
770 Even if you say Y here, the currently visible virtual console
771 (/dev/tty0) will still be used as the system console by default, but
772 you can alter that using a kernel command line option such as
773 "console=ttySA0". (Try "man bootparam" or see the documentation of
774 your boot loader (lilo or loadlin) about how to pass options to the
775 kernel at boot time.)
777 config SERIAL_UARTLITE
778 tristate "Xilinx uartlite serial port support"
782 Say Y here if you want to use the Xilinx uartlite serial controller.
784 To compile this driver as a module, choose M here: the
785 module will be called uartlite.ko.
787 config SERIAL_UARTLITE_CONSOLE
788 bool "Support for console on Xilinx uartlite serial port"
789 depends on SERIAL_UARTLITE=y
790 select SERIAL_CORE_CONSOLE
792 Say Y here if you wish to use a Xilinx uartlite as the system
793 console (the system console is the device which receives all kernel
794 messages and warnings and which allows logins in single user mode).
796 config SERIAL_SUNCORE
800 select SERIAL_CORE_CONSOLE
803 config SERIAL_SUNZILOG
804 tristate "Sun Zilog8530 serial support"
807 This driver supports the Zilog8530 serial ports found on many Sparc
808 systems. Say Y or M if you want to be able to these serial ports.
810 config SERIAL_SUNZILOG_CONSOLE
811 bool "Console on Sun Zilog8530 serial port"
812 depends on SERIAL_SUNZILOG=y
814 If you would like to be able to use the Zilog8530 serial port
815 on your Sparc system as the console, you can do so by answering
819 tristate "Sun SU serial support"
820 depends on SPARC && PCI
822 This driver supports the 8250 serial ports that run the keyboard and
823 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
824 to these serial ports.
826 config SERIAL_SUNSU_CONSOLE
827 bool "Console on Sun SU serial port"
828 depends on SERIAL_SUNSU=y
830 If you would like to be able to use the SU serial port
831 on your Sparc system as the console, you can do so by answering
835 tristate "Serial MUX support"
840 Saying Y here will enable the hardware MUX serial driver for
841 the Nova, K class systems and D class with a 'remote control card'.
842 The hardware MUX is not 8250/16550 compatible therefore the
843 /dev/ttyB0 device is shared between the Serial MUX and the PDC
844 software console. The following steps need to be completed to use
847 1. create the device entry (mknod /dev/ttyB0 c 11 0)
848 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
849 3. Add device ttyB0 to /etc/securetty (if you want to log on as
850 root on this console.)
851 4. Change the kernel command console parameter to: console=ttyB0
853 config SERIAL_MUX_CONSOLE
854 bool "Support for console on serial MUX"
855 depends on SERIAL_MUX=y
856 select SERIAL_CORE_CONSOLE
860 bool "PDC software console support"
861 depends on PARISC && !SERIAL_MUX && VT
864 Saying Y here will enable the software based PDC console to be
865 used as the system console. This is useful for machines in
866 which the hardware based console has not been written yet. The
867 following steps must be competed to use the PDC console:
869 1. create the device entry (mknod /dev/ttyB0 c 11 0)
870 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
871 3. Add device ttyB0 to /etc/securetty (if you want to log on as
872 root on this console.)
873 4. Change the kernel command console parameter to: console=ttyB0
876 tristate "Sun Siemens SAB82532 serial support"
877 depends on SPARC && PCI
879 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
880 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
883 config SERIAL_SUNSAB_CONSOLE
884 bool "Console on Sun Siemens SAB82532 serial port"
885 depends on SERIAL_SUNSAB=y
887 If you would like to be able to use the SAB82532 serial port
888 on your Sparc system as the console, you can do so by answering
892 bool "Sun4v Hypervisor Console support"
895 This driver supports the console device found on SUN4V Sparc
896 systems. Say Y if you want to be able to use this device.
898 config SERIAL_IP22_ZILOG
899 tristate "SGI Zilog8530 serial support"
900 depends on SGI_HAS_ZILOG
903 This driver supports the Zilog8530 serial ports found on SGI
904 systems. Say Y or M if you want to be able to these serial ports.
906 config SERIAL_IP22_ZILOG_CONSOLE
907 bool "Console on SGI Zilog8530 serial port"
908 depends on SERIAL_IP22_ZILOG=y
909 select SERIAL_CORE_CONSOLE
912 bool "NEC V850E on-chip UART support"
913 depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1
919 depends on V850E_UART && V850E_ME2
922 config V850E_UART_CONSOLE
923 bool "Use NEC V850E on-chip UART for console"
924 depends on V850E_UART
925 select SERIAL_CORE_CONSOLE
928 tristate "SuperH SCI(F) serial port support"
929 depends on SUPERH || H8300
932 config SERIAL_SH_SCI_NR_UARTS
933 int "Maximum number of SCI(F) serial ports"
934 depends on SERIAL_SH_SCI
937 config SERIAL_SH_SCI_CONSOLE
938 bool "Support for console on SuperH SCI(F)"
939 depends on SERIAL_SH_SCI=y
940 select SERIAL_CORE_CONSOLE
942 config SERIAL_PNX8XXX
943 bool "Enable PNX8XXX SoCs' UART Support"
944 depends on MIPS && SOC_PNX8550
947 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
948 and you want to use serial ports, say Y. Otherwise, say N.
950 config SERIAL_PNX8XXX_CONSOLE
951 bool "Enable PNX8XX0 serial console"
952 depends on SERIAL_PNX8XXX
953 select SERIAL_CORE_CONSOLE
955 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
956 and you want to use serial console, say Y. Otherwise, say N.
961 config SERIAL_CORE_CONSOLE
965 bool "68328 serial support"
966 depends on M68328 || M68EZ328 || M68VZ328
968 This driver supports the built-in serial port of the Motorola 68328
969 (standard, EZ and VZ varieties).
971 config SERIAL_68328_RTS_CTS
972 bool "Support RTS/CTS on 68328 serial port"
973 depends on SERIAL_68328
975 config SERIAL_COLDFIRE
976 bool "ColdFire serial support"
979 This driver supports the built-in serial ports of the Motorola ColdFire
983 bool "Coldfire serial support (new style driver)"
987 This new serial driver supports the Freescale Coldfire serial ports
988 using the new serial driver subsystem.
990 config SERIAL_MCF_BAUDRATE
991 int "Default baudrate for Coldfire serial ports"
992 depends on SERIAL_MCF
995 This setting lets you define what the default baudrate is for the
996 ColdFire serial ports. The usual default varies from board to board,
997 and this setting is a way of catering for that.
999 config SERIAL_MCF_CONSOLE
1000 bool "Coldfire serial console support"
1001 depends on SERIAL_MCF
1002 select SERIAL_CORE_CONSOLE
1004 Enable a ColdFire internal serial port to be the system console.
1006 config SERIAL_68360_SMC
1007 bool "68360 SMC uart support"
1010 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1012 config SERIAL_68360_SCC
1013 bool "68360 SCC uart support"
1016 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1020 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1023 config SERIAL_PMACZILOG
1024 tristate "PowerMac z85c30 ESCC support"
1025 depends on PPC_OF && PPC_PMAC
1028 This driver supports the Zilog z85C30 serial ports found on
1030 Say Y or M if you want to be able to these serial ports.
1032 config SERIAL_PMACZILOG_TTYS
1033 bool "Use ttySn device nodes for Zilog z85c30"
1034 depends on SERIAL_PMACZILOG
1036 The pmac_zilog driver for the z85C30 chip on many powermacs
1037 historically used the device numbers for /dev/ttySn. The
1038 8250 serial port driver also uses these numbers, which means
1039 the two drivers being unable to coexist; you could not use
1040 both z85C30 and 8250 type ports at the same time.
1042 If this option is not selected, the pmac_zilog driver will
1043 use the device numbers allocated for /dev/ttyPZn. This allows
1044 the pmac_zilog and 8250 drivers to co-exist, but may cause
1045 existing userspace setups to break. Programs that need to
1046 access the built-in serial ports on powermacs will need to
1047 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1049 If you enable this option, any z85c30 ports in the system will
1050 be registered as ttyS0 onwards as in the past, and you will be
1051 unable to use the 8250 module for PCMCIA or other 16C550-style
1054 Say N unless you need the z85c30 ports on your powermac
1055 to appear as /dev/ttySn.
1057 config SERIAL_PMACZILOG_CONSOLE
1058 bool "Console on PowerMac z85c30 serial port"
1059 depends on SERIAL_PMACZILOG=y
1060 select SERIAL_CORE_CONSOLE
1062 If you would like to be able to use the z85c30 serial port
1063 on your PowerMac as the console, you can do so by answering
1066 config SERIAL_LH7A40X
1067 tristate "Sharp LH7A40X embedded UART support"
1068 depends on ARM && ARCH_LH7A40X
1071 This enables support for the three on-board UARTs of the
1072 Sharp LH7A40X series CPUs. Choose Y or M.
1074 config SERIAL_LH7A40X_CONSOLE
1075 bool "Support for console on Sharp LH7A40X serial port"
1076 depends on SERIAL_LH7A40X=y
1077 select SERIAL_CORE_CONSOLE
1079 Say Y here if you wish to use one of the serial ports as the
1080 system console--the system console is the device which
1081 receives all kernel messages and warnings and which allows
1082 logins in single user mode.
1084 Even if you say Y here, the currently visible framebuffer console
1085 (/dev/tty0) will still be used as the default system console, but
1086 you can alter that using a kernel command line, for example
1090 tristate "CPM SCC/SMC serial port support"
1091 depends on CPM2 || 8xx
1094 This driver supports the SCC and SMC serial ports on Motorola
1095 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1097 config SERIAL_CPM_CONSOLE
1098 bool "Support for console on CPM SCC/SMC serial port"
1099 depends on SERIAL_CPM=y
1100 select SERIAL_CORE_CONSOLE
1102 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1103 console (the system console is the device which receives all kernel
1104 messages and warnings and which allows logins in single user mode).
1106 Even if you say Y here, the currently visible framebuffer console
1107 (/dev/tty0) will still be used as the system console by default, but
1108 you can alter that using a kernel command line option such as
1109 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1110 your boot loader (lilo or loadlin) about how to pass options to the
1111 kernel at boot time.)
1113 config SERIAL_CPM_SCC1
1114 bool "Support for SCC1 serial port"
1115 depends on SERIAL_CPM=y
1117 Select this option to use SCC1 as a serial port
1119 config SERIAL_CPM_SCC2
1120 bool "Support for SCC2 serial port"
1121 depends on SERIAL_CPM=y
1123 Select this option to use SCC2 as a serial port
1125 config SERIAL_CPM_SCC3
1126 bool "Support for SCC3 serial port"
1127 depends on SERIAL_CPM=y
1129 Select this option to use SCC3 as a serial port
1131 config SERIAL_CPM_SCC4
1132 bool "Support for SCC4 serial port"
1133 depends on SERIAL_CPM=y
1135 Select this option to use SCC4 as a serial port
1137 config SERIAL_CPM_SMC1
1138 bool "Support for SMC1 serial port"
1139 depends on SERIAL_CPM=y
1141 Select this option to use SMC1 as a serial port
1143 config SERIAL_CPM_SMC2
1144 bool "Support for SMC2 serial port"
1145 depends on SERIAL_CPM=y
1147 Select this option to use SMC2 as a serial port
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 bool "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
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
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.
1331 tristate "Freescale QUICC Engine serial port support"
1332 depends on QUICC_ENGINE
1337 This driver supports the QE serial ports on Freescale embedded
1338 PowerPC that contain a QUICC Engine.
1340 config SERIAL_SC26XX
1341 tristate "SC2681/SC2692 serial port support"
1345 This is a driver for the onboard serial ports of
1346 older RM400 machines.
1348 config SERIAL_SC26XX_CONSOLE
1349 bool "Console on SC2681/SC2692 serial port"
1350 depends on SERIAL_SC26XX
1351 select SERIAL_CORE_CONSOLE
1353 Support for Console on SC2681/SC2692 serial ports.