2 # Serial device configuration
9 # The new 8250/16550 serial drivers
11 tristate "8250/16550 and compatible serial support"
12 depends on (BROKEN || !SPARC)
15 This selects whether you want to include the driver for the standard
16 serial ports. The standard answer is Y. People who might say N
17 here are those that are setting up dedicated Ethernet WWW/FTP
18 servers, or users that have one of the various bus mice instead of a
19 serial mouse and don't intend to use their machine's standard serial
20 port for anything. (Note that the Cyclades and Stallion multi
21 serial port drivers do not need this driver built in for them to
24 To compile this driver as a module, choose M here: the
25 module will be called 8250.
26 [WARNING: Do not compile this driver as a module if you are using
27 non-standard serial ports, since the configuration information will
28 be lost when the driver is unloaded. This limitation may be lifted
31 BTW1: If you have a mouseman serial mouse which is not recognized by
32 the X window system, try running gpm first.
34 BTW2: If you intend to use a software modem (also called Winmodem)
35 under Linux, forget it. These modems are crippled and require
36 proprietary drivers which are only available under Windows.
38 Most people will say Y or M here, so that they can use serial mice,
39 modems and similar devices connecting to the standard serial ports.
41 config SERIAL_8250_CONSOLE
42 bool "Console on 8250/16550 and compatible serial port"
43 depends on SERIAL_8250=y
44 select SERIAL_CORE_CONSOLE
46 If you say Y here, it will be possible to use a serial port as the
47 system console (the system console is the device which receives all
48 kernel messages and warnings and which allows logins in single user
49 mode). This could be useful if some terminal or printer is connected
52 Even if you say Y here, the currently visible virtual console
53 (/dev/tty0) will still be used as the system console by default, but
54 you can alter that using a kernel command line option such as
55 "console=ttyS1". (Try "man bootparam" or see the documentation of
56 your boot loader (grub or lilo or loadlin) about how to pass options
57 to the kernel at boot time.)
59 If you don't have a VGA card installed and you say Y here, the
60 kernel will automatically use the first serial line, /dev/ttyS0, as
63 You can set that using a kernel command line option such as
64 "console=uart8250,io,0x3f8,9600n8"
65 "console=uart8250,mmio,0xff5e0000,115200n8".
66 and it will switch to normal serial console when the corresponding
68 "earlycon=uart8250,io,0x3f8,9600n8"
69 "earlycon=uart8250,mmio,0xff5e0000,115200n8".
70 it will not only setup early console.
74 config FIX_EARLYCON_MEM
79 config SERIAL_8250_GSC
81 depends on SERIAL_8250 && GSC
84 config SERIAL_8250_PCI
85 tristate "8250/16550 PCI device support" if EMBEDDED
86 depends on SERIAL_8250 && PCI
89 This builds standard PCI serial support. You may be able to
90 disable this feature if you only need legacy serial support.
93 config SERIAL_8250_PNP
94 tristate "8250/16550 PNP device support" if EMBEDDED
95 depends on SERIAL_8250 && PNP
98 This builds standard PNP serial support. You may be able to
99 disable this feature if you only need legacy serial support.
101 config SERIAL_8250_HP300
103 depends on SERIAL_8250 && HP300
106 config SERIAL_8250_CS
107 tristate "8250/16550 PCMCIA device support"
108 depends on PCMCIA && SERIAL_8250
110 Say Y here to enable support for 16-bit PCMCIA serial devices,
111 including serial port cards, modems, and the modem functions of
112 multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
113 credit-card size devices often used with laptops.)
115 To compile this driver as a module, choose M here: the
116 module will be called serial_cs.
120 config SERIAL_8250_NR_UARTS
121 int "Maximum number of 8250/16550 serial ports"
122 depends on SERIAL_8250
125 Set this to the number of serial ports you want the driver
126 to support. This includes any ports discovered via ACPI or
127 PCI enumeration and any ports that may be added at run-time
128 via hot-plug, or any ISA multi-port serial cards.
130 config SERIAL_8250_RUNTIME_UARTS
131 int "Number of 8250/16550 serial ports to register at runtime"
132 depends on SERIAL_8250
133 range 0 SERIAL_8250_NR_UARTS
136 Set this to the maximum number of serial ports you want
137 the kernel to register at boot time. This can be overridden
138 with the module parameter "nr_uarts", or boot-time parameter
141 config SERIAL_8250_EXTENDED
142 bool "Extended 8250/16550 serial driver options"
143 depends on SERIAL_8250
145 If you wish to use any non-standard features of the standard "dumb"
146 driver, say Y here. This includes HUB6 support, shared serial
147 interrupts, special multiport support, support for more than the
148 four COM 1/2/3/4 boards, etc.
150 Note that the answer to this question won't directly affect the
151 kernel: saying N will just cause the configurator to skip all
152 the questions about serial driver options. If unsure, say N.
154 config SERIAL_8250_MANY_PORTS
155 bool "Support more than 4 legacy serial ports"
156 depends on SERIAL_8250_EXTENDED && !IA64
158 Say Y here if you have dumb serial boards other than the four
159 standard COM 1/2/3/4 ports. This may happen if you have an AST
160 FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
161 from <http://www.tldp.org/docs.html#howto>), or other custom
162 serial port hardware which acts similar to standard serial port
163 hardware. If you only use the standard COM 1/2/3/4 ports, you can
164 say N here to save some memory. You can also say Y if you have an
165 "intelligent" multiport card such as Cyclades, Digiboards, etc.
168 # Multi-port serial cards
171 config SERIAL_8250_FOURPORT
172 tristate "Support Fourport cards"
173 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
175 Say Y here if you have an AST FourPort serial board.
177 To compile this driver as a module, choose M here: the module
178 will be called 8250_fourport.
180 config SERIAL_8250_ACCENT
181 tristate "Support Accent cards"
182 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
184 Say Y here if you have an Accent Async serial board.
186 To compile this driver as a module, choose M here: the module
187 will be called 8250_accent.
189 config SERIAL_8250_BOCA
190 tristate "Support Boca cards"
191 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
193 Say Y here if you have a Boca serial board. Please read the Boca
194 mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>
196 To compile this driver as a module, choose M here: the module
197 will be called 8250_boca.
199 config SERIAL_8250_EXAR_ST16C554
200 tristate "Support Exar ST16C554/554D Quad UART"
201 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
203 The Uplogix Envoy TU301 uses this Exar Quad UART. If you are
204 tinkering with your Envoy TU301, or have a machine with this UART,
207 To compile this driver as a module, choose M here: the module
208 will be called 8250_exar_st16c554.
210 config SERIAL_8250_HUB6
211 tristate "Support Hub6 cards"
212 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
214 Say Y here if you have a HUB6 serial board.
216 To compile this driver as a module, choose M here: the module
217 will be called 8250_hub6.
219 config SERIAL_8250_SHARE_IRQ
220 bool "Support for sharing serial interrupts"
221 depends on SERIAL_8250_EXTENDED
223 Some serial boards have hardware support which allows multiple dumb
224 serial ports on the same board to share a single IRQ. To enable
225 support for this in the serial driver, say Y here.
227 config SERIAL_8250_DETECT_IRQ
228 bool "Autodetect IRQ on standard ports (unsafe)"
229 depends on SERIAL_8250_EXTENDED
231 Say Y here if you want the kernel to try to guess which IRQ
232 to use for your serial port.
234 This is considered unsafe; it is far better to configure the IRQ in
235 a boot script using the setserial command.
239 config SERIAL_8250_RSA
240 bool "Support RSA serial ports"
241 depends on SERIAL_8250_EXTENDED
243 ::: To be written :::
245 config SERIAL_8250_MCA
246 tristate "Support 8250-type ports on MCA buses"
247 depends on SERIAL_8250 != n && MCA
249 Say Y here if you have a MCA serial ports.
251 To compile this driver as a module, choose M here: the module
252 will be called 8250_mca.
254 config SERIAL_8250_ACORN
255 tristate "Acorn expansion card serial port support"
256 depends on ARCH_ACORN && SERIAL_8250
258 If you have an Atomwide Serial card or Serial Port card for an Acorn
259 system, say Y to this option. The driver can handle 1, 2, or 3 port
260 cards. If unsure, say N.
262 config SERIAL_8250_AU1X00
263 bool "Au1x00 serial port support"
264 depends on SERIAL_8250 != n && SOC_AU1X00
266 If you have an Au1x00 SOC based board and want to use the serial port,
267 say Y to this option. The driver can handle up to 4 serial ports,
268 depending on the SOC. If unsure, say N.
270 config SERIAL_8250_RM9K
271 bool "Support for MIPS RM9xxx integrated serial port"
272 depends on SERIAL_8250 != n && SERIAL_RM9000
273 select SERIAL_8250_SHARE_IRQ
275 Selecting this option will add support for the integrated serial
276 port hardware found on MIPS RM9122 and similar processors.
279 comment "Non-8250 serial port support"
281 config SERIAL_AMBA_PL010
282 tristate "ARM AMBA PL010 serial port support"
283 depends on ARM_AMBA && (BROKEN || !ARCH_VERSATILE)
286 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have
287 an Integrator/AP or Integrator/PP2 platform, or if you have a
288 Cirrus Logic EP93xx CPU, say Y or M here.
292 config SERIAL_AMBA_PL010_CONSOLE
293 bool "Support for console on AMBA serial port"
294 depends on SERIAL_AMBA_PL010=y
295 select SERIAL_CORE_CONSOLE
297 Say Y here if you wish to use an AMBA PrimeCell UART as the system
298 console (the system console is the device which receives all kernel
299 messages and warnings and which allows logins in single user mode).
301 Even if you say Y here, the currently visible framebuffer console
302 (/dev/tty0) will still be used as the system console by default, but
303 you can alter that using a kernel command line option such as
304 "console=ttyAM0". (Try "man bootparam" or see the documentation of
305 your boot loader (lilo or loadlin) about how to pass options to the
306 kernel at boot time.)
308 config SERIAL_AMBA_PL011
309 tristate "ARM AMBA PL011 serial port support"
313 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have
314 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
319 config SERIAL_AMBA_PL011_CONSOLE
320 bool "Support for console on AMBA serial port"
321 depends on SERIAL_AMBA_PL011=y
322 select SERIAL_CORE_CONSOLE
324 Say Y here if you wish to use an AMBA PrimeCell UART as the system
325 console (the system console is the device which receives all kernel
326 messages and warnings and which allows logins in single user mode).
328 Even if you say Y here, the currently visible framebuffer console
329 (/dev/tty0) will still be used as the system console by default, but
330 you can alter that using a kernel command line option such as
331 "console=ttyAMA0". (Try "man bootparam" or see the documentation of
332 your boot loader (lilo or loadlin) about how to pass options to the
333 kernel at boot time.)
335 config SERIAL_SB1250_DUART
336 tristate "BCM1xxx on-chip DUART serial support"
337 depends on SIBYTE_SB1xxx_SOC=y
341 Support for the asynchronous serial interface (DUART) included in
342 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
343 the letter D in DUART stands for "dual", which is how the device
344 is implemented. Depending on the SOC configuration there may be
345 one or more DUARTs available of which all are handled.
347 If unsure, say Y. To compile this driver as a module, choose M here:
348 the module will be called sb1250-duart.
350 config SERIAL_SB1250_DUART_CONSOLE
351 bool "Support for console on a BCM1xxx DUART serial port"
352 depends on SERIAL_SB1250_DUART=y
353 select SERIAL_CORE_CONSOLE
356 If you say Y here, it will be possible to use a serial port as the
357 system console (the system console is the device which receives all
358 kernel messages and warnings and which allows logins in single user
364 bool "AT91 / AT32 on-chip serial port support"
365 depends on (ARM && ARCH_AT91) || AVR32
368 This enables the driver for the on-chip UARTs of the Atmel
369 AT91 and AT32 processors.
371 config SERIAL_ATMEL_CONSOLE
372 bool "Support for console on AT91 / AT32 serial port"
373 depends on SERIAL_ATMEL=y
374 select SERIAL_CORE_CONSOLE
376 Say Y here if you wish to use an on-chip UART on a Atmel
377 AT91 or AT32 processor as the system console (the system
378 console is the device which receives all kernel messages and
379 warnings and which allows logins in single user mode).
381 config SERIAL_ATMEL_PDC
382 bool "Support DMA transfers on AT91 / AT32 serial port"
383 depends on SERIAL_ATMEL
386 Say Y here if you wish to use the PDC to do DMA transfers to
387 and from the Atmel AT91 / AT32 serial port. In order to
388 actually use DMA transfers, make sure that the use_dma_tx
389 and use_dma_rx members in the atmel_uart_data struct is set
390 appropriately for each port.
392 Note that break and error handling currently doesn't work
393 properly when DMA is enabled. Make sure that ports where
394 this matters don't use DMA.
396 config SERIAL_ATMEL_TTYAT
397 bool "Install as device ttyATn instead of ttySn"
398 depends on SERIAL_ATMEL=y
400 Say Y here if you wish to have the internal AT91 / AT32 UARTs
401 appear as /dev/ttyATn (major 204, minor starting at 154)
402 instead of the normal /dev/ttySn (major 4, minor starting at
403 64). This is necessary if you also want other UARTs, such as
404 external 8250/16C550 compatible UARTs.
405 The ttySn nodes are legally reserved for the 8250 serial driver
406 but are often misused by other serial drivers.
408 To use this, you should create suitable ttyATn device nodes in
409 /dev/, and pass "console=ttyATn" to the kernel.
411 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
414 bool "Micrel KS8695 (Centaur) serial port support"
415 depends on ARCH_KS8695
418 This selects the Micrel Centaur KS8695 UART. Say Y here.
420 config SERIAL_KS8695_CONSOLE
421 bool "Support for console on KS8695 (Centaur) serial port"
422 depends on SERIAL_KS8695=y
423 select SERIAL_CORE_CONSOLE
425 Say Y here if you wish to use a KS8695 (Centaur) UART as the
426 system console (the system console is the device which
427 receives all kernel messages and warnings and which allows
428 logins in single user mode).
430 config SERIAL_CLPS711X
431 tristate "CLPS711X serial port support"
432 depends on ARM && ARCH_CLPS711X
435 ::: To be written :::
437 config SERIAL_CLPS711X_CONSOLE
438 bool "Support for console on CLPS711X serial port"
439 depends on SERIAL_CLPS711X=y
440 select SERIAL_CORE_CONSOLE
442 Even if you say Y here, the currently visible virtual console
443 (/dev/tty0) will still be used as the system console by default, but
444 you can alter that using a kernel command line option such as
445 "console=ttyCL1". (Try "man bootparam" or see the documentation of
446 your boot loader (lilo or loadlin) about how to pass options to the
447 kernel at boot time.)
449 config SERIAL_SAMSUNG
450 tristate "Samsung SoC serial support"
451 depends on ARM && PLAT_S3C24XX
454 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
455 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
456 provide all of these ports, depending on how the serial port
459 config SERIAL_SAMSUNG_DEBUG
460 bool "Samsung SoC serial debug"
461 depends on SERIAL_SAMSUNG
463 Add support for debugging the serial driver. Since this is
464 generally being used as a console, we use our own output
465 routines that go via the low-level debug printascii()
468 config SERIAL_SAMSUNG_CONSOLE
469 bool "Support for console on Samsung SoC serial port"
470 depends on SERIAL_SAMSUNG=y
471 select SERIAL_CORE_CONSOLE
473 Allow selection of the S3C24XX on-board serial ports for use as
476 Even if you say Y here, the currently visible virtual console
477 (/dev/tty0) will still be used as the system console by default, but
478 you can alter that using a kernel command line option such as
479 "console=ttySACx". (Try "man bootparam" or see the documentation of
480 your boot loader about how to pass options to the kernel at
483 config SERIAL_S3C2400
484 tristate "Samsung S3C2410 Serial port support"
485 depends on ARM && SERIAL_SAMSUNG && CPU_S3C2400
486 default y if CPU_S3C2400
488 Serial port support for the Samsung S3C2400 SoC
490 config SERIAL_S3C2410
491 tristate "Samsung S3C2410 Serial port support"
492 depends on SERIAL_SAMSUNG && CPU_S3C2410
493 default y if CPU_S3C2410
495 Serial port support for the Samsung S3C2410 SoC
497 config SERIAL_S3C2412
498 tristate "Samsung S3C2412/S3C2413 Serial port support"
499 depends on SERIAL_SAMSUNG && CPU_S3C2412
500 default y if CPU_S3C2412
502 Serial port support for the Samsung S3C2412 and S3C2413 SoC
504 config SERIAL_S3C2440
505 tristate "Samsung S3C2440/S3C2442 Serial port support"
506 depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442)
507 default y if CPU_S3C2440
508 default y if CPU_S3C2442
510 Serial port support for the Samsung S3C2440 and S3C2442 SoC
515 bool "DECstation DZ serial driver"
516 depends on MACH_DECSTATION && 32BIT
520 DZ11-family serial controllers for DECstations and VAXstations,
521 including the DC7085, M7814, and M7819.
523 config SERIAL_DZ_CONSOLE
524 bool "Support console on DECstation DZ serial driver"
525 depends on SERIAL_DZ=y
526 select SERIAL_CORE_CONSOLE
529 If you say Y here, it will be possible to use a serial port as the
530 system console (the system console is the device which receives all
531 kernel messages and warnings and which allows logins in single user
534 Note that the firmware uses ttyS3 as the serial console on
535 DECstations that use this driver.
540 tristate "DECstation Z85C30 serial support"
541 depends on MACH_DECSTATION
545 Support for the Zilog 85C350 serial communications controller used
546 for serial ports in newer DECstation systems. These include the
547 DECsystem 5900 and all models of the DECstation and DECsystem 5000
548 systems except from model 200.
550 If unsure, say Y. To compile this driver as a module, choose M here:
551 the module will be called zs.
553 config SERIAL_ZS_CONSOLE
554 bool "Support for console on a DECstation Z85C30 serial port"
555 depends on SERIAL_ZS=y
556 select SERIAL_CORE_CONSOLE
559 If you say Y here, it will be possible to use a serial port as the
560 system console (the system console is the device which receives all
561 kernel messages and warnings and which allows logins in single user
564 Note that the firmware uses ttyS1 as the serial console on the
565 Maxine and ttyS3 on the others using this driver.
570 tristate "DC21285 serial port support"
571 depends on ARM && FOOTBRIDGE
574 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
575 PCI bridge you can enable its onboard serial port by enabling this
578 config SERIAL_21285_CONSOLE
579 bool "Console on DC21285 serial port"
580 depends on SERIAL_21285=y
581 select SERIAL_CORE_CONSOLE
583 If you have enabled the serial port on the 21285 footbridge you can
584 make it the console by answering Y to this option.
586 Even if you say Y here, the currently visible virtual console
587 (/dev/tty0) will still be used as the system console by default, but
588 you can alter that using a kernel command line option such as
589 "console=ttyFB". (Try "man bootparam" or see the documentation of
590 your boot loader (lilo or loadlin) about how to pass options to the
591 kernel at boot time.)
594 bool "Marvell MPSC serial port support"
595 depends on PPC32 && MV64X60
598 Say Y here if you want to use the Marvell MPSC serial controller.
600 config SERIAL_MPSC_CONSOLE
601 bool "Support for console on Marvell MPSC serial port"
602 depends on SERIAL_MPSC
603 select SERIAL_CORE_CONSOLE
605 Say Y here if you want to support a serial console on a Marvell MPSC.
608 bool "PXA serial port support"
609 depends on ARM && ARCH_PXA
612 If you have a machine based on an Intel XScale PXA2xx CPU you
613 can enable its onboard serial ports by enabling this option.
615 config SERIAL_PXA_CONSOLE
616 bool "Console on PXA serial port"
617 depends on SERIAL_PXA
618 select SERIAL_CORE_CONSOLE
620 If you have enabled the serial port on the Intel XScale PXA
621 CPU you can make it the console by answering Y to this option.
623 Even if you say Y here, the currently visible virtual console
624 (/dev/tty0) will still be used as the system console by default, but
625 you can alter that using a kernel command line option such as
626 "console=ttySA0". (Try "man bootparam" or see the documentation of
627 your boot loader (lilo or loadlin) about how to pass options to the
628 kernel at boot time.)
631 bool "SA1100 serial port support"
632 depends on ARM && ARCH_SA1100
635 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
636 can enable its onboard serial port by enabling this option.
637 Please read <file:Documentation/arm/SA1100/serial_UART> for further
640 config SERIAL_SA1100_CONSOLE
641 bool "Console on SA1100 serial port"
642 depends on SERIAL_SA1100
643 select SERIAL_CORE_CONSOLE
645 If you have enabled the serial port on the SA1100/SA1110 StrongARM
646 CPU you can make it the console by answering Y to this option.
648 Even if you say Y here, the currently visible virtual console
649 (/dev/tty0) will still be used as the system console by default, but
650 you can alter that using a kernel command line option such as
651 "console=ttySA0". (Try "man bootparam" or see the documentation of
652 your boot loader (lilo or loadlin) about how to pass options to the
653 kernel at boot time.)
656 tristate "Blackfin serial port support"
659 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
661 Add support for the built-in UARTs on the Blackfin.
663 To compile this driver as a module, choose M here: the
664 module will be called bfin_5xx.
666 config SERIAL_BFIN_CONSOLE
667 bool "Console on Blackfin serial port"
668 depends on SERIAL_BFIN=y
669 select SERIAL_CORE_CONSOLE
673 depends on SERIAL_BFIN
674 default SERIAL_BFIN_DMA
676 This driver supports the built-in serial ports of the Blackfin family
679 config SERIAL_BFIN_DMA
681 depends on !DMA_UNCACHED_NONE && !KGDB_UART
683 This driver works under DMA mode. If this option is selected, the
684 blackfin simple dma driver is also enabled.
686 config SERIAL_BFIN_PIO
689 This driver works under PIO mode.
693 config SERIAL_BFIN_UART0
695 depends on SERIAL_BFIN
699 config BFIN_UART0_CTSRTS
700 bool "Enable UART0 hardware flow control"
701 depends on SERIAL_BFIN_UART0
703 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
708 depends on BFIN_UART0_CTSRTS
711 The default pin is GPIO_GP7.
712 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
716 depends on BFIN_UART0_CTSRTS
719 The default pin is GPIO_GP6.
720 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
722 config SERIAL_BFIN_UART1
724 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
728 config BFIN_UART1_CTSRTS
729 bool "Enable UART1 hardware flow control"
730 depends on SERIAL_BFIN_UART1
732 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
737 depends on BFIN_UART1_CTSRTS && !BF54x
740 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
744 depends on BFIN_UART1_CTSRTS && !BF54x
747 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
749 config SERIAL_BFIN_UART2
751 depends on SERIAL_BFIN && (BF54x)
755 config BFIN_UART2_CTSRTS
756 bool "Enable UART2 hardware flow control"
757 depends on SERIAL_BFIN_UART2
759 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
764 depends on BFIN_UART2_CTSRTS
767 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
771 depends on BFIN_UART2_CTSRTS
774 Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
776 config SERIAL_BFIN_UART3
778 depends on SERIAL_BFIN && (BF54x)
782 config BFIN_UART3_CTSRTS
783 bool "Enable UART3 hardware flow control"
784 depends on SERIAL_BFIN_UART3
786 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
790 bool "IMX serial port support"
791 depends on ARM && (ARCH_IMX || ARCH_MXC)
794 If you have a machine based on a Motorola IMX CPU you
795 can enable its onboard serial port by enabling this option.
797 config SERIAL_IMX_CONSOLE
798 bool "Console on IMX serial port"
799 depends on SERIAL_IMX
800 select SERIAL_CORE_CONSOLE
802 If you have enabled the serial port on the Motorola IMX
803 CPU you can make it the console by answering Y to this option.
805 Even if you say Y here, the currently visible virtual console
806 (/dev/tty0) will still be used as the system console by default, but
807 you can alter that using a kernel command line option such as
808 "console=ttySA0". (Try "man bootparam" or see the documentation of
809 your boot loader (lilo or loadlin) about how to pass options to the
810 kernel at boot time.)
812 config SERIAL_UARTLITE
813 tristate "Xilinx uartlite serial port support"
817 Say Y here if you want to use the Xilinx uartlite serial controller.
819 To compile this driver as a module, choose M here: the
820 module will be called uartlite.ko.
822 config SERIAL_UARTLITE_CONSOLE
823 bool "Support for console on Xilinx uartlite serial port"
824 depends on SERIAL_UARTLITE=y
825 select SERIAL_CORE_CONSOLE
827 Say Y here if you wish to use a Xilinx uartlite as the system
828 console (the system console is the device which receives all kernel
829 messages and warnings and which allows logins in single user mode).
831 config SERIAL_SUNCORE
835 select SERIAL_CORE_CONSOLE
838 config SERIAL_SUNZILOG
839 tristate "Sun Zilog8530 serial support"
842 This driver supports the Zilog8530 serial ports found on many Sparc
843 systems. Say Y or M if you want to be able to these serial ports.
845 config SERIAL_SUNZILOG_CONSOLE
846 bool "Console on Sun Zilog8530 serial port"
847 depends on SERIAL_SUNZILOG=y
849 If you would like to be able to use the Zilog8530 serial port
850 on your Sparc system as the console, you can do so by answering
854 tristate "Sun SU serial support"
855 depends on SPARC && PCI
857 This driver supports the 8250 serial ports that run the keyboard and
858 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
859 to these serial ports.
861 config SERIAL_SUNSU_CONSOLE
862 bool "Console on Sun SU serial port"
863 depends on SERIAL_SUNSU=y
865 If you would like to be able to use the SU serial port
866 on your Sparc system as the console, you can do so by answering
870 tristate "Serial MUX support"
875 Saying Y here will enable the hardware MUX serial driver for
876 the Nova, K class systems and D class with a 'remote control card'.
877 The hardware MUX is not 8250/16550 compatible therefore the
878 /dev/ttyB0 device is shared between the Serial MUX and the PDC
879 software console. The following steps need to be completed to use
882 1. create the device entry (mknod /dev/ttyB0 c 11 0)
883 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
884 3. Add device ttyB0 to /etc/securetty (if you want to log on as
885 root on this console.)
886 4. Change the kernel command console parameter to: console=ttyB0
888 config SERIAL_MUX_CONSOLE
889 bool "Support for console on serial MUX"
890 depends on SERIAL_MUX=y
891 select SERIAL_CORE_CONSOLE
895 bool "PDC software console support"
896 depends on PARISC && !SERIAL_MUX && VT
899 Saying Y here will enable the software based PDC console to be
900 used as the system console. This is useful for machines in
901 which the hardware based console has not been written yet. The
902 following steps must be competed to use the PDC console:
904 1. create the device entry (mknod /dev/ttyB0 c 11 0)
905 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
906 3. Add device ttyB0 to /etc/securetty (if you want to log on as
907 root on this console.)
908 4. Change the kernel command console parameter to: console=ttyB0
911 tristate "Sun Siemens SAB82532 serial support"
912 depends on SPARC && PCI
914 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
915 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
918 config SERIAL_SUNSAB_CONSOLE
919 bool "Console on Sun Siemens SAB82532 serial port"
920 depends on SERIAL_SUNSAB=y
922 If you would like to be able to use the SAB82532 serial port
923 on your Sparc system as the console, you can do so by answering
927 bool "Sun4v Hypervisor Console support"
930 This driver supports the console device found on SUN4V Sparc
931 systems. Say Y if you want to be able to use this device.
933 config SERIAL_IP22_ZILOG
934 tristate "SGI Zilog8530 serial support"
935 depends on SGI_HAS_ZILOG
938 This driver supports the Zilog8530 serial ports found on SGI
939 systems. Say Y or M if you want to be able to these serial ports.
941 config SERIAL_IP22_ZILOG_CONSOLE
942 bool "Console on SGI Zilog8530 serial port"
943 depends on SERIAL_IP22_ZILOG=y
944 select SERIAL_CORE_CONSOLE
947 tristate "SuperH SCI(F) serial port support"
948 depends on SUPERH || H8300
951 config SERIAL_SH_SCI_NR_UARTS
952 int "Maximum number of SCI(F) serial ports"
953 depends on SERIAL_SH_SCI
956 config SERIAL_SH_SCI_CONSOLE
957 bool "Support for console on SuperH SCI(F)"
958 depends on SERIAL_SH_SCI=y
959 select SERIAL_CORE_CONSOLE
961 config SERIAL_PNX8XXX
962 bool "Enable PNX8XXX SoCs' UART Support"
963 depends on MIPS && SOC_PNX8550
966 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
967 and you want to use serial ports, say Y. Otherwise, say N.
969 config SERIAL_PNX8XXX_CONSOLE
970 bool "Enable PNX8XX0 serial console"
971 depends on SERIAL_PNX8XXX
972 select SERIAL_CORE_CONSOLE
974 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
975 and you want to use serial console, say Y. Otherwise, say N.
980 config SERIAL_CORE_CONSOLE
987 bool "68328 serial support"
988 depends on M68328 || M68EZ328 || M68VZ328
990 This driver supports the built-in serial port of the Motorola 68328
991 (standard, EZ and VZ varieties).
993 config SERIAL_68328_RTS_CTS
994 bool "Support RTS/CTS on 68328 serial port"
995 depends on SERIAL_68328
997 config SERIAL_COLDFIRE
998 bool "ColdFire serial support (DEPRECATED)"
1001 This driver supports the built-in serial ports of the Motorola ColdFire
1003 This driver is deprecated because it supports only the old interface
1004 for serial drivers and features like magic keys are not working.
1005 Please switch to the new style driver because this driver will be
1009 bool "Coldfire serial support (new style driver)"
1013 This new serial driver supports the Freescale Coldfire serial ports
1014 using the new serial driver subsystem.
1016 config SERIAL_MCF_BAUDRATE
1017 int "Default baudrate for Coldfire serial ports"
1018 depends on SERIAL_MCF
1021 This setting lets you define what the default baudrate is for the
1022 ColdFire serial ports. The usual default varies from board to board,
1023 and this setting is a way of catering for that.
1025 config SERIAL_MCF_CONSOLE
1026 bool "Coldfire serial console support"
1027 depends on SERIAL_MCF
1028 select SERIAL_CORE_CONSOLE
1030 Enable a ColdFire internal serial port to be the system console.
1032 config SERIAL_68360_SMC
1033 bool "68360 SMC uart support"
1036 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1038 config SERIAL_68360_SCC
1039 bool "68360 SCC uart support"
1042 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1046 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1049 config SERIAL_PMACZILOG
1050 tristate "PowerMac z85c30 ESCC support"
1051 depends on PPC_OF && PPC_PMAC
1054 This driver supports the Zilog z85C30 serial ports found on
1056 Say Y or M if you want to be able to these serial ports.
1058 config SERIAL_PMACZILOG_TTYS
1059 bool "Use ttySn device nodes for Zilog z85c30"
1060 depends on SERIAL_PMACZILOG
1062 The pmac_zilog driver for the z85C30 chip on many powermacs
1063 historically used the device numbers for /dev/ttySn. The
1064 8250 serial port driver also uses these numbers, which means
1065 the two drivers being unable to coexist; you could not use
1066 both z85C30 and 8250 type ports at the same time.
1068 If this option is not selected, the pmac_zilog driver will
1069 use the device numbers allocated for /dev/ttyPZn. This allows
1070 the pmac_zilog and 8250 drivers to co-exist, but may cause
1071 existing userspace setups to break. Programs that need to
1072 access the built-in serial ports on powermacs will need to
1073 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1075 If you enable this option, any z85c30 ports in the system will
1076 be registered as ttyS0 onwards as in the past, and you will be
1077 unable to use the 8250 module for PCMCIA or other 16C550-style
1080 Say N unless you need the z85c30 ports on your powermac
1081 to appear as /dev/ttySn.
1083 config SERIAL_PMACZILOG_CONSOLE
1084 bool "Console on PowerMac z85c30 serial port"
1085 depends on SERIAL_PMACZILOG=y
1086 select SERIAL_CORE_CONSOLE
1088 If you would like to be able to use the z85c30 serial port
1089 on your PowerMac as the console, you can do so by answering
1092 config SERIAL_LH7A40X
1093 tristate "Sharp LH7A40X embedded UART support"
1094 depends on ARM && ARCH_LH7A40X
1097 This enables support for the three on-board UARTs of the
1098 Sharp LH7A40X series CPUs. Choose Y or M.
1100 config SERIAL_LH7A40X_CONSOLE
1101 bool "Support for console on Sharp LH7A40X serial port"
1102 depends on SERIAL_LH7A40X=y
1103 select SERIAL_CORE_CONSOLE
1105 Say Y here if you wish to use one of the serial ports as the
1106 system console--the system console is the device which
1107 receives all kernel messages and warnings and which allows
1108 logins in single user mode.
1110 Even if you say Y here, the currently visible framebuffer console
1111 (/dev/tty0) will still be used as the default system console, but
1112 you can alter that using a kernel command line, for example
1116 tristate "CPM SCC/SMC serial port support"
1117 depends on CPM2 || 8xx
1120 This driver supports the SCC and SMC serial ports on Motorola
1121 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1123 config SERIAL_CPM_CONSOLE
1124 bool "Support for console on CPM SCC/SMC serial port"
1125 depends on SERIAL_CPM=y
1126 select SERIAL_CORE_CONSOLE
1128 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1129 console (the system console is the device which receives all kernel
1130 messages and warnings and which allows logins in single user mode).
1132 Even if you say Y here, the currently visible framebuffer console
1133 (/dev/tty0) will still be used as the system console by default, but
1134 you can alter that using a kernel command line option such as
1135 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1136 your boot loader (lilo or loadlin) about how to pass options to the
1137 kernel at boot time.)
1139 config SERIAL_CPM_SCC1
1140 bool "Support for SCC1 serial port"
1141 depends on SERIAL_CPM=y
1143 Select this option to use SCC1 as a serial port
1145 config SERIAL_CPM_SCC2
1146 bool "Support for SCC2 serial port"
1147 depends on SERIAL_CPM=y
1149 Select this option to use SCC2 as a serial port
1151 config SERIAL_CPM_SCC3
1152 bool "Support for SCC3 serial port"
1153 depends on SERIAL_CPM=y
1155 Select this option to use SCC3 as a serial port
1157 config SERIAL_CPM_SCC4
1158 bool "Support for SCC4 serial port"
1159 depends on SERIAL_CPM=y
1161 Select this option to use SCC4 as a serial port
1163 config SERIAL_CPM_SMC1
1164 bool "Support for SMC1 serial port"
1165 depends on SERIAL_CPM=y
1167 Select this option to use SMC1 as a serial port
1169 config SERIAL_CPM_SMC2
1170 bool "Support for SMC2 serial port"
1171 depends on SERIAL_CPM=y
1173 Select this option to use SMC2 as a serial port
1175 config SERIAL_SGI_L1_CONSOLE
1176 bool "SGI Altix L1 serial console support"
1177 depends on IA64_GENERIC || IA64_SGI_SN2
1179 select SERIAL_CORE_CONSOLE
1181 If you have an SGI Altix and you would like to use the system
1182 controller serial port as your console (you want this!),
1183 say Y. Otherwise, say N.
1185 config SERIAL_MPC52xx
1186 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
1187 depends on PPC_MPC52xx || PPC_MPC512x
1190 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
1191 like to use them, you must answer Y or M to this option. Note that
1192 for use as console, it must be included in kernel and not as a
1195 config SERIAL_MPC52xx_CONSOLE
1196 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
1197 depends on SERIAL_MPC52xx=y
1198 select SERIAL_CORE_CONSOLE
1200 Select this options if you'd like to use one of the PSC serial port
1201 of the Freescale MPC52xx family as a console.
1203 config SERIAL_MPC52xx_CONSOLE_BAUD
1204 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
1205 depends on SERIAL_MPC52xx_CONSOLE=y
1208 Select the MPC52xx console baud rate.
1209 This value is only used if the bootloader doesn't pass in the
1213 tristate "IBM Multiport Serial Adapter"
1214 depends on PCI && (PPC_ISERIES || PPC_PSERIES)
1218 This driver is for a family of multiport serial adapters
1219 including 2 port RVX, 2 port internal modem, 4 port internal
1220 modem and a split 1 port RVX and 1 port internal modem.
1222 This driver can also be built as a module. If so, the module
1223 will be called icom.
1225 config SERIAL_M32R_SIO
1231 Say Y here if you want to use the M32R serial controller.
1233 config SERIAL_M32R_SIO_CONSOLE
1234 bool "use SIO console"
1235 depends on SERIAL_M32R_SIO=y
1236 select SERIAL_CORE_CONSOLE
1238 Say Y here if you want to support a serial console.
1240 If you use an M3T-M32700UT or an OPSPUT platform,
1241 please say also y for SERIAL_M32R_PLDSIO.
1243 config SERIAL_M32R_PLDSIO
1244 bool "M32R SIO I/F on a PLD"
1245 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1248 Say Y here if you want to use the M32R serial controller
1249 on a PLD (Programmable Logic Device).
1251 If you use an M3T-M32700UT or an OPSPUT platform,
1255 bool "TMPTX39XX/49XX SIO support"
1256 depends on HAS_TXX9_SERIAL
1260 config HAS_TXX9_SERIAL
1263 config SERIAL_TXX9_NR_UARTS
1264 int "Maximum number of TMPTX39XX/49XX SIO ports"
1265 depends on SERIAL_TXX9
1268 config SERIAL_TXX9_CONSOLE
1269 bool "TMPTX39XX/49XX SIO Console support"
1270 depends on SERIAL_TXX9=y
1271 select SERIAL_CORE_CONSOLE
1273 config SERIAL_TXX9_STDSERIAL
1274 bool "TX39XX/49XX SIO act as standard serial"
1275 depends on !SERIAL_8250 && SERIAL_TXX9
1277 config SERIAL_VR41XX
1278 tristate "NEC VR4100 series Serial Interface Unit support"
1279 depends on CPU_VR41XX
1282 If you have a NEC VR4100 series processor and you want to use
1283 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1284 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1286 config SERIAL_VR41XX_CONSOLE
1287 bool "Enable NEC VR4100 series Serial Interface Unit console"
1288 depends on SERIAL_VR41XX=y
1289 select SERIAL_CORE_CONSOLE
1291 If you have a NEC VR4100 series processor and you want to use
1292 a console on a serial port, say Y. Otherwise, say N.
1295 tristate "Digi International NEO PCI Support"
1299 This is a driver for Digi International's Neo series
1300 of cards which provide multiple serial ports. You would need
1301 something like this to connect more than two modems to your Linux
1302 box, for instance in order to become a dial-in server. This driver
1303 supports PCI boards only.
1305 If you have a card like this, say Y here, otherwise say N.
1307 To compile this driver as a module, choose M here: the
1308 module will be called jsm.
1310 config SERIAL_SGI_IOC4
1311 tristate "SGI IOC4 controller serial support"
1312 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1315 If you have an SGI Altix with an IOC4 based Base IO card
1316 and wish to use the serial ports on this card, say Y.
1319 config SERIAL_SGI_IOC3
1320 tristate "SGI Altix IOC3 serial support"
1321 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1324 If you have an SGI Altix with an IOC3 serial card,
1325 say Y or M. Otherwise, say N.
1328 bool "NetX serial port support"
1329 depends on ARM && ARCH_NETX
1332 If you have a machine based on a Hilscher NetX SoC you
1333 can enable its onboard serial port by enabling this option.
1335 To compile this driver as a module, choose M here: the
1336 module will be called netx-serial.
1338 config SERIAL_NETX_CONSOLE
1339 bool "Console on NetX serial port"
1340 depends on SERIAL_NETX
1341 select SERIAL_CORE_CONSOLE
1343 If you have enabled the serial port on the Hilscher NetX SoC
1344 you can make it the console by answering Y to this option.
1346 config SERIAL_OF_PLATFORM
1347 tristate "Serial port on Open Firmware platform bus"
1349 depends on SERIAL_8250
1351 If you have a PowerPC based system that has serial ports
1352 on a platform specific bus, you should enable this option.
1353 Currently, only 8250 compatible ports are supported, but
1354 others can easily be added.
1357 tristate "Freescale QUICC Engine serial port support"
1358 depends on QUICC_ENGINE
1363 This driver supports the QE serial ports on Freescale embedded
1364 PowerPC that contain a QUICC Engine.
1366 config SERIAL_SC26XX
1367 tristate "SC2681/SC2692 serial port support"
1371 This is a driver for the onboard serial ports of
1372 older RM400 machines.
1374 config SERIAL_SC26XX_CONSOLE
1375 bool "Console on SC2681/SC2692 serial port"
1376 depends on SERIAL_SC26XX
1377 select SERIAL_CORE_CONSOLE
1379 Support for Console on SC2681/SC2692 serial ports.
1381 config SERIAL_BFIN_SPORT
1382 tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
1383 depends on BLACKFIN && EXPERIMENTAL
1386 Enble support SPORT emulate UART on Blackfin series.
1388 To compile this driver as a module, choose M here: the
1389 module will be called bfin_sport_uart.
1392 prompt "Baud rate for Blackfin SPORT UART"
1393 depends on SERIAL_BFIN_SPORT
1394 default SERIAL_SPORT_BAUD_RATE_57600
1396 Choose a baud rate for the SPORT UART, other uart settings are
1397 8 bit, 1 stop bit, no parity, no flow control.
1399 config SERIAL_SPORT_BAUD_RATE_115200
1402 config SERIAL_SPORT_BAUD_RATE_57600
1405 config SERIAL_SPORT_BAUD_RATE_38400
1408 config SERIAL_SPORT_BAUD_RATE_19200
1411 config SERIAL_SPORT_BAUD_RATE_9600
1415 config SPORT_BAUD_RATE
1417 depends on SERIAL_BFIN_SPORT
1418 default 115200 if (SERIAL_SPORT_BAUD_RATE_115200)
1419 default 57600 if (SERIAL_SPORT_BAUD_RATE_57600)
1420 default 38400 if (SERIAL_SPORT_BAUD_RATE_38400)
1421 default 19200 if (SERIAL_SPORT_BAUD_RATE_19200)
1422 default 9600 if (SERIAL_SPORT_BAUD_RATE_9600)