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
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
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 bool "NEC V850E on-chip UART support"
947 depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1
953 depends on V850E_UART && V850E_ME2
956 config V850E_UART_CONSOLE
957 bool "Use NEC V850E on-chip UART for console"
958 depends on V850E_UART
959 select SERIAL_CORE_CONSOLE
962 tristate "SuperH SCI(F) serial port support"
963 depends on SUPERH || H8300
966 config SERIAL_SH_SCI_NR_UARTS
967 int "Maximum number of SCI(F) serial ports"
968 depends on SERIAL_SH_SCI
971 config SERIAL_SH_SCI_CONSOLE
972 bool "Support for console on SuperH SCI(F)"
973 depends on SERIAL_SH_SCI=y
974 select SERIAL_CORE_CONSOLE
976 config SERIAL_PNX8XXX
977 bool "Enable PNX8XXX SoCs' UART Support"
978 depends on MIPS && SOC_PNX8550
981 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
982 and you want to use serial ports, say Y. Otherwise, say N.
984 config SERIAL_PNX8XXX_CONSOLE
985 bool "Enable PNX8XX0 serial console"
986 depends on SERIAL_PNX8XXX
987 select SERIAL_CORE_CONSOLE
989 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
990 and you want to use serial console, say Y. Otherwise, say N.
995 config SERIAL_CORE_CONSOLE
1002 bool "68328 serial support"
1003 depends on M68328 || M68EZ328 || M68VZ328
1005 This driver supports the built-in serial port of the Motorola 68328
1006 (standard, EZ and VZ varieties).
1008 config SERIAL_68328_RTS_CTS
1009 bool "Support RTS/CTS on 68328 serial port"
1010 depends on SERIAL_68328
1012 config SERIAL_COLDFIRE
1013 bool "ColdFire serial support (DEPRECATED)"
1016 This driver supports the built-in serial ports of the Motorola ColdFire
1018 This driver is deprecated because it supports only the old interface
1019 for serial drivers and features like magic keys are not working.
1020 Please switch to the new style driver because this driver will be
1024 bool "Coldfire serial support (new style driver)"
1028 This new serial driver supports the Freescale Coldfire serial ports
1029 using the new serial driver subsystem.
1031 config SERIAL_MCF_BAUDRATE
1032 int "Default baudrate for Coldfire serial ports"
1033 depends on SERIAL_MCF
1036 This setting lets you define what the default baudrate is for the
1037 ColdFire serial ports. The usual default varies from board to board,
1038 and this setting is a way of catering for that.
1040 config SERIAL_MCF_CONSOLE
1041 bool "Coldfire serial console support"
1042 depends on SERIAL_MCF
1043 select SERIAL_CORE_CONSOLE
1045 Enable a ColdFire internal serial port to be the system console.
1047 config SERIAL_68360_SMC
1048 bool "68360 SMC uart support"
1051 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1053 config SERIAL_68360_SCC
1054 bool "68360 SCC uart support"
1057 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1061 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1064 config SERIAL_PMACZILOG
1065 tristate "PowerMac z85c30 ESCC support"
1066 depends on PPC_OF && PPC_PMAC
1069 This driver supports the Zilog z85C30 serial ports found on
1071 Say Y or M if you want to be able to these serial ports.
1073 config SERIAL_PMACZILOG_TTYS
1074 bool "Use ttySn device nodes for Zilog z85c30"
1075 depends on SERIAL_PMACZILOG
1077 The pmac_zilog driver for the z85C30 chip on many powermacs
1078 historically used the device numbers for /dev/ttySn. The
1079 8250 serial port driver also uses these numbers, which means
1080 the two drivers being unable to coexist; you could not use
1081 both z85C30 and 8250 type ports at the same time.
1083 If this option is not selected, the pmac_zilog driver will
1084 use the device numbers allocated for /dev/ttyPZn. This allows
1085 the pmac_zilog and 8250 drivers to co-exist, but may cause
1086 existing userspace setups to break. Programs that need to
1087 access the built-in serial ports on powermacs will need to
1088 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1090 If you enable this option, any z85c30 ports in the system will
1091 be registered as ttyS0 onwards as in the past, and you will be
1092 unable to use the 8250 module for PCMCIA or other 16C550-style
1095 Say N unless you need the z85c30 ports on your powermac
1096 to appear as /dev/ttySn.
1098 config SERIAL_PMACZILOG_CONSOLE
1099 bool "Console on PowerMac z85c30 serial port"
1100 depends on SERIAL_PMACZILOG=y
1101 select SERIAL_CORE_CONSOLE
1103 If you would like to be able to use the z85c30 serial port
1104 on your PowerMac as the console, you can do so by answering
1107 config SERIAL_LH7A40X
1108 tristate "Sharp LH7A40X embedded UART support"
1109 depends on ARM && ARCH_LH7A40X
1112 This enables support for the three on-board UARTs of the
1113 Sharp LH7A40X series CPUs. Choose Y or M.
1115 config SERIAL_LH7A40X_CONSOLE
1116 bool "Support for console on Sharp LH7A40X serial port"
1117 depends on SERIAL_LH7A40X=y
1118 select SERIAL_CORE_CONSOLE
1120 Say Y here if you wish to use one of the serial ports as the
1121 system console--the system console is the device which
1122 receives all kernel messages and warnings and which allows
1123 logins in single user mode.
1125 Even if you say Y here, the currently visible framebuffer console
1126 (/dev/tty0) will still be used as the default system console, but
1127 you can alter that using a kernel command line, for example
1131 tristate "CPM SCC/SMC serial port support"
1132 depends on CPM2 || 8xx
1135 This driver supports the SCC and SMC serial ports on Motorola
1136 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1138 config SERIAL_CPM_CONSOLE
1139 bool "Support for console on CPM SCC/SMC serial port"
1140 depends on SERIAL_CPM=y
1141 select SERIAL_CORE_CONSOLE
1143 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1144 console (the system console is the device which receives all kernel
1145 messages and warnings and which allows logins in single user mode).
1147 Even if you say Y here, the currently visible framebuffer console
1148 (/dev/tty0) will still be used as the system console by default, but
1149 you can alter that using a kernel command line option such as
1150 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1151 your boot loader (lilo or loadlin) about how to pass options to the
1152 kernel at boot time.)
1154 config SERIAL_CPM_SCC1
1155 bool "Support for SCC1 serial port"
1156 depends on SERIAL_CPM=y
1158 Select this option to use SCC1 as a serial port
1160 config SERIAL_CPM_SCC2
1161 bool "Support for SCC2 serial port"
1162 depends on SERIAL_CPM=y
1164 Select this option to use SCC2 as a serial port
1166 config SERIAL_CPM_SCC3
1167 bool "Support for SCC3 serial port"
1168 depends on SERIAL_CPM=y
1170 Select this option to use SCC3 as a serial port
1172 config SERIAL_CPM_SCC4
1173 bool "Support for SCC4 serial port"
1174 depends on SERIAL_CPM=y
1176 Select this option to use SCC4 as a serial port
1178 config SERIAL_CPM_SMC1
1179 bool "Support for SMC1 serial port"
1180 depends on SERIAL_CPM=y
1182 Select this option to use SMC1 as a serial port
1184 config SERIAL_CPM_SMC2
1185 bool "Support for SMC2 serial port"
1186 depends on SERIAL_CPM=y
1188 Select this option to use SMC2 as a serial port
1190 config SERIAL_SGI_L1_CONSOLE
1191 bool "SGI Altix L1 serial console support"
1192 depends on IA64_GENERIC || IA64_SGI_SN2
1194 select SERIAL_CORE_CONSOLE
1196 If you have an SGI Altix and you would like to use the system
1197 controller serial port as your console (you want this!),
1198 say Y. Otherwise, say N.
1200 config SERIAL_MPC52xx
1201 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
1202 depends on PPC_MPC52xx || PPC_MPC512x
1205 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
1206 like to use them, you must answer Y or M to this option. Note that
1207 for use as console, it must be included in kernel and not as a
1210 config SERIAL_MPC52xx_CONSOLE
1211 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
1212 depends on SERIAL_MPC52xx=y
1213 select SERIAL_CORE_CONSOLE
1215 Select this options if you'd like to use one of the PSC serial port
1216 of the Freescale MPC52xx family as a console.
1218 config SERIAL_MPC52xx_CONSOLE_BAUD
1219 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
1220 depends on SERIAL_MPC52xx_CONSOLE=y
1223 Select the MPC52xx console baud rate.
1224 This value is only used if the bootloader doesn't pass in the
1228 tristate "IBM Multiport Serial Adapter"
1229 depends on PCI && (PPC_ISERIES || PPC_PSERIES)
1233 This driver is for a family of multiport serial adapters
1234 including 2 port RVX, 2 port internal modem, 4 port internal
1235 modem and a split 1 port RVX and 1 port internal modem.
1237 This driver can also be built as a module. If so, the module
1238 will be called icom.
1240 config SERIAL_M32R_SIO
1246 Say Y here if you want to use the M32R serial controller.
1248 config SERIAL_M32R_SIO_CONSOLE
1249 bool "use SIO console"
1250 depends on SERIAL_M32R_SIO=y
1251 select SERIAL_CORE_CONSOLE
1253 Say Y here if you want to support a serial console.
1255 If you use an M3T-M32700UT or an OPSPUT platform,
1256 please say also y for SERIAL_M32R_PLDSIO.
1258 config SERIAL_M32R_PLDSIO
1259 bool "M32R SIO I/F on a PLD"
1260 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1263 Say Y here if you want to use the M32R serial controller
1264 on a PLD (Programmable Logic Device).
1266 If you use an M3T-M32700UT or an OPSPUT platform,
1270 bool "TMPTX39XX/49XX SIO support"
1271 depends on HAS_TXX9_SERIAL
1275 config HAS_TXX9_SERIAL
1278 config SERIAL_TXX9_NR_UARTS
1279 int "Maximum number of TMPTX39XX/49XX SIO ports"
1280 depends on SERIAL_TXX9
1283 config SERIAL_TXX9_CONSOLE
1284 bool "TMPTX39XX/49XX SIO Console support"
1285 depends on SERIAL_TXX9=y
1286 select SERIAL_CORE_CONSOLE
1288 config SERIAL_TXX9_STDSERIAL
1289 bool "TX39XX/49XX SIO act as standard serial"
1290 depends on !SERIAL_8250 && SERIAL_TXX9
1292 config SERIAL_VR41XX
1293 tristate "NEC VR4100 series Serial Interface Unit support"
1294 depends on CPU_VR41XX
1297 If you have a NEC VR4100 series processor and you want to use
1298 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1299 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1301 config SERIAL_VR41XX_CONSOLE
1302 bool "Enable NEC VR4100 series Serial Interface Unit console"
1303 depends on SERIAL_VR41XX=y
1304 select SERIAL_CORE_CONSOLE
1306 If you have a NEC VR4100 series processor and you want to use
1307 a console on a serial port, say Y. Otherwise, say N.
1310 tristate "Digi International NEO PCI Support"
1314 This is a driver for Digi International's Neo series
1315 of cards which provide multiple serial ports. You would need
1316 something like this to connect more than two modems to your Linux
1317 box, for instance in order to become a dial-in server. This driver
1318 supports PCI boards only.
1320 If you have a card like this, say Y here, otherwise say N.
1322 To compile this driver as a module, choose M here: the
1323 module will be called jsm.
1325 config SERIAL_SGI_IOC4
1326 tristate "SGI IOC4 controller serial support"
1327 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1330 If you have an SGI Altix with an IOC4 based Base IO card
1331 and wish to use the serial ports on this card, say Y.
1334 config SERIAL_SGI_IOC3
1335 tristate "SGI Altix IOC3 serial support"
1336 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1339 If you have an SGI Altix with an IOC3 serial card,
1340 say Y or M. Otherwise, say N.
1343 bool "NetX serial port support"
1344 depends on ARM && ARCH_NETX
1347 If you have a machine based on a Hilscher NetX SoC you
1348 can enable its onboard serial port by enabling this option.
1350 To compile this driver as a module, choose M here: the
1351 module will be called netx-serial.
1353 config SERIAL_NETX_CONSOLE
1354 bool "Console on NetX serial port"
1355 depends on SERIAL_NETX
1356 select SERIAL_CORE_CONSOLE
1358 If you have enabled the serial port on the Hilscher NetX SoC
1359 you can make it the console by answering Y to this option.
1361 config SERIAL_OF_PLATFORM
1362 tristate "Serial port on Open Firmware platform bus"
1364 depends on SERIAL_8250
1366 If you have a PowerPC based system that has serial ports
1367 on a platform specific bus, you should enable this option.
1368 Currently, only 8250 compatible ports are supported, but
1369 others can easily be added.
1372 tristate "Freescale QUICC Engine serial port support"
1373 depends on QUICC_ENGINE
1378 This driver supports the QE serial ports on Freescale embedded
1379 PowerPC that contain a QUICC Engine.
1381 config SERIAL_SC26XX
1382 tristate "SC2681/SC2692 serial port support"
1386 This is a driver for the onboard serial ports of
1387 older RM400 machines.
1389 config SERIAL_SC26XX_CONSOLE
1390 bool "Console on SC2681/SC2692 serial port"
1391 depends on SERIAL_SC26XX
1392 select SERIAL_CORE_CONSOLE
1394 Support for Console on SC2681/SC2692 serial ports.
1396 config SERIAL_BFIN_SPORT
1397 tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
1398 depends on BLACKFIN && EXPERIMENTAL
1401 Enble support SPORT emulate UART on Blackfin series.
1403 To compile this driver as a module, choose M here: the
1404 module will be called bfin_sport_uart.
1407 prompt "Baud rate for Blackfin SPORT UART"
1408 depends on SERIAL_BFIN_SPORT
1409 default SERIAL_SPORT_BAUD_RATE_57600
1411 Choose a baud rate for the SPORT UART, other uart settings are
1412 8 bit, 1 stop bit, no parity, no flow control.
1414 config SERIAL_SPORT_BAUD_RATE_115200
1417 config SERIAL_SPORT_BAUD_RATE_57600
1420 config SERIAL_SPORT_BAUD_RATE_38400
1423 config SERIAL_SPORT_BAUD_RATE_19200
1426 config SERIAL_SPORT_BAUD_RATE_9600
1430 config SPORT_BAUD_RATE
1432 depends on SERIAL_BFIN_SPORT
1433 default 115200 if (SERIAL_SPORT_BAUD_RATE_115200)
1434 default 57600 if (SERIAL_SPORT_BAUD_RATE_57600)
1435 default 38400 if (SERIAL_SPORT_BAUD_RATE_38400)
1436 default 19200 if (SERIAL_SPORT_BAUD_RATE_19200)
1437 default 9600 if (SERIAL_SPORT_BAUD_RATE_9600)