2 # Serial device configuration
9 # The new 8250/16550 serial drivers
11 tristate "8250/16550 and compatible serial support"
14 This selects whether you want to include the driver for the standard
15 serial ports. The standard answer is Y. People who might say N
16 here are those that are setting up dedicated Ethernet WWW/FTP
17 servers, or users that have one of the various bus mice instead of a
18 serial mouse and don't intend to use their machine's standard serial
19 port for anything. (Note that the Cyclades and Stallion multi
20 serial port drivers do not need this driver built in for them to
23 To compile this driver as a module, choose M here: the
24 module will be called 8250.
25 [WARNING: Do not compile this driver as a module if you are using
26 non-standard serial ports, since the configuration information will
27 be lost when the driver is unloaded. This limitation may be lifted
30 BTW1: If you have a mouseman serial mouse which is not recognized by
31 the X window system, try running gpm first.
33 BTW2: If you intend to use a software modem (also called Winmodem)
34 under Linux, forget it. These modems are crippled and require
35 proprietary drivers which are only available under Windows.
37 Most people will say Y or M here, so that they can use serial mice,
38 modems and similar devices connecting to the standard serial ports.
40 config SERIAL_8250_CONSOLE
41 bool "Console on 8250/16550 and compatible serial port"
42 depends on SERIAL_8250=y
43 select SERIAL_CORE_CONSOLE
45 If you say Y here, it will be possible to use a serial port as the
46 system console (the system console is the device which receives all
47 kernel messages and warnings and which allows logins in single user
48 mode). This could be useful if some terminal or printer is connected
51 Even if you say Y here, the currently visible virtual console
52 (/dev/tty0) will still be used as the system console by default, but
53 you can alter that using a kernel command line option such as
54 "console=ttyS1". (Try "man bootparam" or see the documentation of
55 your boot loader (grub or lilo or loadlin) about how to pass options
56 to the kernel at boot time.)
58 If you don't have a VGA card installed and you say Y here, the
59 kernel will automatically use the first serial line, /dev/ttyS0, as
62 You can set that using a kernel command line option such as
63 "console=uart8250,io,0x3f8,9600n8"
64 "console=uart8250,mmio,0xff5e0000,115200n8".
65 and it will switch to normal serial console when the corresponding
67 "earlycon=uart8250,io,0x3f8,9600n8"
68 "earlycon=uart8250,mmio,0xff5e0000,115200n8".
69 it will not only setup early console.
73 config FIX_EARLYCON_MEM
78 config SERIAL_8250_GSC
80 depends on SERIAL_8250 && GSC
83 config SERIAL_8250_PCI
84 tristate "8250/16550 PCI device support" if EMBEDDED
85 depends on SERIAL_8250 && PCI
88 This builds standard PCI serial support. You may be able to
89 disable this feature if you only need legacy serial support.
92 config SERIAL_8250_PNP
93 tristate "8250/16550 PNP device support" if EMBEDDED
94 depends on SERIAL_8250 && PNP
97 This builds standard PNP serial support. You may be able to
98 disable this feature if you only need legacy serial support.
100 config SERIAL_8250_HP300
102 depends on SERIAL_8250 && HP300
105 config SERIAL_8250_CS
106 tristate "8250/16550 PCMCIA device support"
107 depends on PCMCIA && SERIAL_8250
109 Say Y here to enable support for 16-bit PCMCIA serial devices,
110 including serial port cards, modems, and the modem functions of
111 multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
112 credit-card size devices often used with laptops.)
114 To compile this driver as a module, choose M here: the
115 module will be called serial_cs.
119 config SERIAL_8250_NR_UARTS
120 int "Maximum number of 8250/16550 serial ports"
121 depends on SERIAL_8250
124 Set this to the number of serial ports you want the driver
125 to support. This includes any ports discovered via ACPI or
126 PCI enumeration and any ports that may be added at run-time
127 via hot-plug, or any ISA multi-port serial cards.
129 config SERIAL_8250_RUNTIME_UARTS
130 int "Number of 8250/16550 serial ports to register at runtime"
131 depends on SERIAL_8250
132 range 0 SERIAL_8250_NR_UARTS
135 Set this to the maximum number of serial ports you want
136 the kernel to register at boot time. This can be overridden
137 with the module parameter "nr_uarts", or boot-time parameter
140 config SERIAL_8250_EXTENDED
141 bool "Extended 8250/16550 serial driver options"
142 depends on SERIAL_8250
144 If you wish to use any non-standard features of the standard "dumb"
145 driver, say Y here. This includes HUB6 support, shared serial
146 interrupts, special multiport support, support for more than the
147 four COM 1/2/3/4 boards, etc.
149 Note that the answer to this question won't directly affect the
150 kernel: saying N will just cause the configurator to skip all
151 the questions about serial driver options. If unsure, say N.
153 config SERIAL_8250_MANY_PORTS
154 bool "Support more than 4 legacy serial ports"
155 depends on SERIAL_8250_EXTENDED && !IA64
157 Say Y here if you have dumb serial boards other than the four
158 standard COM 1/2/3/4 ports. This may happen if you have an AST
159 FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
160 from <http://www.tldp.org/docs.html#howto>), or other custom
161 serial port hardware which acts similar to standard serial port
162 hardware. If you only use the standard COM 1/2/3/4 ports, you can
163 say N here to save some memory. You can also say Y if you have an
164 "intelligent" multiport card such as Cyclades, Digiboards, etc.
167 # Multi-port serial cards
170 config SERIAL_8250_FOURPORT
171 tristate "Support Fourport cards"
172 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
174 Say Y here if you have an AST FourPort serial board.
176 To compile this driver as a module, choose M here: the module
177 will be called 8250_fourport.
179 config SERIAL_8250_ACCENT
180 tristate "Support Accent cards"
181 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
183 Say Y here if you have an Accent Async serial board.
185 To compile this driver as a module, choose M here: the module
186 will be called 8250_accent.
188 config SERIAL_8250_BOCA
189 tristate "Support Boca cards"
190 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
192 Say Y here if you have a Boca serial board. Please read the Boca
193 mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>
195 To compile this driver as a module, choose M here: the module
196 will be called 8250_boca.
198 config SERIAL_8250_EXAR_ST16C554
199 tristate "Support Exar ST16C554/554D Quad UART"
200 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
202 The Uplogix Envoy TU301 uses this Exar Quad UART. If you are
203 tinkering with your Envoy TU301, or have a machine with this UART,
206 To compile this driver as a module, choose M here: the module
207 will be called 8250_exar_st16c554.
209 config SERIAL_8250_HUB6
210 tristate "Support Hub6 cards"
211 depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
213 Say Y here if you have a HUB6 serial board.
215 To compile this driver as a module, choose M here: the module
216 will be called 8250_hub6.
218 config SERIAL_8250_SHARE_IRQ
219 bool "Support for sharing serial interrupts"
220 depends on SERIAL_8250_EXTENDED
222 Some serial boards have hardware support which allows multiple dumb
223 serial ports on the same board to share a single IRQ. To enable
224 support for this in the serial driver, say Y here.
226 config SERIAL_8250_DETECT_IRQ
227 bool "Autodetect IRQ on standard ports (unsafe)"
228 depends on SERIAL_8250_EXTENDED
230 Say Y here if you want the kernel to try to guess which IRQ
231 to use for your serial port.
233 This is considered unsafe; it is far better to configure the IRQ in
234 a boot script using the setserial command.
238 config SERIAL_8250_RSA
239 bool "Support RSA serial ports"
240 depends on SERIAL_8250_EXTENDED
242 ::: To be written :::
244 config SERIAL_8250_MCA
245 tristate "Support 8250-type ports on MCA buses"
246 depends on SERIAL_8250 != n && MCA
248 Say Y here if you have a MCA serial ports.
250 To compile this driver as a module, choose M here: the module
251 will be called 8250_mca.
253 config SERIAL_8250_ACORN
254 tristate "Acorn expansion card serial port support"
255 depends on ARCH_ACORN && SERIAL_8250
257 If you have an Atomwide Serial card or Serial Port card for an Acorn
258 system, say Y to this option. The driver can handle 1, 2, or 3 port
259 cards. If unsure, say N.
261 config SERIAL_8250_AU1X00
262 bool "Au1x00 serial port support"
263 depends on SERIAL_8250 != n && SOC_AU1X00
265 If you have an Au1x00 SOC based board and want to use the serial port,
266 say Y to this option. The driver can handle up to 4 serial ports,
267 depending on the SOC. If unsure, say N.
269 config SERIAL_8250_RM9K
270 bool "Support for MIPS RM9xxx integrated serial port"
271 depends on SERIAL_8250 != n && SERIAL_RM9000
272 select SERIAL_8250_SHARE_IRQ
274 Selecting this option will add support for the integrated serial
275 port hardware found on MIPS RM9122 and similar processors.
278 comment "Non-8250 serial port support"
280 config SERIAL_AMBA_PL010
281 tristate "ARM AMBA PL010 serial port support"
282 depends on ARM_AMBA && (BROKEN || !ARCH_VERSATILE)
285 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have
286 an Integrator/AP or Integrator/PP2 platform, or if you have a
287 Cirrus Logic EP93xx CPU, say Y or M here.
291 config SERIAL_AMBA_PL010_CONSOLE
292 bool "Support for console on AMBA serial port"
293 depends on SERIAL_AMBA_PL010=y
294 select SERIAL_CORE_CONSOLE
296 Say Y here if you wish to use an AMBA PrimeCell UART as the system
297 console (the system console is the device which receives all kernel
298 messages and warnings and which allows logins in single user mode).
300 Even if you say Y here, the currently visible framebuffer console
301 (/dev/tty0) will still be used as the system console by default, but
302 you can alter that using a kernel command line option such as
303 "console=ttyAM0". (Try "man bootparam" or see the documentation of
304 your boot loader (lilo or loadlin) about how to pass options to the
305 kernel at boot time.)
307 config SERIAL_AMBA_PL011
308 tristate "ARM AMBA PL011 serial port support"
312 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have
313 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
318 config SERIAL_AMBA_PL011_CONSOLE
319 bool "Support for console on AMBA serial port"
320 depends on SERIAL_AMBA_PL011=y
321 select SERIAL_CORE_CONSOLE
323 Say Y here if you wish to use an AMBA PrimeCell UART as the system
324 console (the system console is the device which receives all kernel
325 messages and warnings and which allows logins in single user mode).
327 Even if you say Y here, the currently visible framebuffer console
328 (/dev/tty0) will still be used as the system console by default, but
329 you can alter that using a kernel command line option such as
330 "console=ttyAMA0". (Try "man bootparam" or see the documentation of
331 your boot loader (lilo or loadlin) about how to pass options to the
332 kernel at boot time.)
334 config SERIAL_SB1250_DUART
335 tristate "BCM1xxx on-chip DUART serial support"
336 depends on SIBYTE_SB1xxx_SOC=y
340 Support for the asynchronous serial interface (DUART) included in
341 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
342 the letter D in DUART stands for "dual", which is how the device
343 is implemented. Depending on the SOC configuration there may be
344 one or more DUARTs available of which all are handled.
346 If unsure, say Y. To compile this driver as a module, choose M here:
347 the module will be called sb1250-duart.
349 config SERIAL_SB1250_DUART_CONSOLE
350 bool "Support for console on a BCM1xxx DUART serial port"
351 depends on SERIAL_SB1250_DUART=y
352 select SERIAL_CORE_CONSOLE
355 If you say Y here, it will be possible to use a serial port as the
356 system console (the system console is the device which receives all
357 kernel messages and warnings and which allows logins in single user
363 bool "AT91 / AT32 on-chip serial port support"
364 depends on (ARM && ARCH_AT91) || AVR32
367 This enables the driver for the on-chip UARTs of the Atmel
368 AT91 and AT32 processors.
370 config SERIAL_ATMEL_CONSOLE
371 bool "Support for console on AT91 / AT32 serial port"
372 depends on SERIAL_ATMEL=y
373 select SERIAL_CORE_CONSOLE
375 Say Y here if you wish to use an on-chip UART on a Atmel
376 AT91 or AT32 processor as the system console (the system
377 console is the device which receives all kernel messages and
378 warnings and which allows logins in single user mode).
380 config SERIAL_ATMEL_PDC
381 bool "Support DMA transfers on AT91 / AT32 serial port"
382 depends on SERIAL_ATMEL
385 Say Y here if you wish to use the PDC to do DMA transfers to
386 and from the Atmel AT91 / AT32 serial port. In order to
387 actually use DMA transfers, make sure that the use_dma_tx
388 and use_dma_rx members in the atmel_uart_data struct is set
389 appropriately for each port.
391 Note that break and error handling currently doesn't work
392 properly when DMA is enabled. Make sure that ports where
393 this matters don't use DMA.
395 config SERIAL_ATMEL_TTYAT
396 bool "Install as device ttyATn instead of ttySn"
397 depends on SERIAL_ATMEL=y
399 Say Y here if you wish to have the internal AT91 / AT32 UARTs
400 appear as /dev/ttyATn (major 204, minor starting at 154)
401 instead of the normal /dev/ttySn (major 4, minor starting at
402 64). This is necessary if you also want other UARTs, such as
403 external 8250/16C550 compatible UARTs.
404 The ttySn nodes are legally reserved for the 8250 serial driver
405 but are often misused by other serial drivers.
407 To use this, you should create suitable ttyATn device nodes in
408 /dev/, and pass "console=ttyATn" to the kernel.
410 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
413 bool "Micrel KS8695 (Centaur) serial port support"
414 depends on ARCH_KS8695
417 This selects the Micrel Centaur KS8695 UART. Say Y here.
419 config SERIAL_KS8695_CONSOLE
420 bool "Support for console on KS8695 (Centaur) serial port"
421 depends on SERIAL_KS8695=y
422 select SERIAL_CORE_CONSOLE
424 Say Y here if you wish to use a KS8695 (Centaur) UART as the
425 system console (the system console is the device which
426 receives all kernel messages and warnings and which allows
427 logins in single user mode).
429 config SERIAL_CLPS711X
430 tristate "CLPS711X serial port support"
431 depends on ARM && ARCH_CLPS711X
434 ::: To be written :::
436 config SERIAL_CLPS711X_CONSOLE
437 bool "Support for console on CLPS711X serial port"
438 depends on SERIAL_CLPS711X=y
439 select SERIAL_CORE_CONSOLE
441 Even if you say Y here, the currently visible virtual console
442 (/dev/tty0) will still be used as the system console by default, but
443 you can alter that using a kernel command line option such as
444 "console=ttyCL1". (Try "man bootparam" or see the documentation of
445 your boot loader (lilo or loadlin) about how to pass options to the
446 kernel at boot time.)
448 config SERIAL_SAMSUNG
449 tristate "Samsung SoC serial support"
450 depends on ARM && PLAT_SAMSUNG
453 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
454 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
455 provide all of these ports, depending on how the serial port
458 config SERIAL_SAMSUNG_UARTS_4
460 depends on ARM && PLAT_SAMSUNG
461 default y if CPU_S3C2443
463 Internal node for the common case of 4 Samsung compatible UARTs
465 config SERIAL_SAMSUNG_UARTS
467 depends on ARM && PLAT_SAMSUNG
468 default 2 if ARCH_S3C2400
469 default 4 if SERIAL_SAMSUNG_UARTS_4
472 Select the number of available UART ports for the Samsung S3C
475 config SERIAL_SAMSUNG_DEBUG
476 bool "Samsung SoC serial debug"
477 depends on SERIAL_SAMSUNG && DEBUG_LL
479 Add support for debugging the serial driver. Since this is
480 generally being used as a console, we use our own output
481 routines that go via the low-level debug printascii()
484 config SERIAL_SAMSUNG_CONSOLE
485 bool "Support for console on Samsung SoC serial port"
486 depends on SERIAL_SAMSUNG=y
487 select SERIAL_CORE_CONSOLE
489 Allow selection of the S3C24XX on-board serial ports for use as
492 Even if you say Y here, the currently visible virtual console
493 (/dev/tty0) will still be used as the system console by default, but
494 you can alter that using a kernel command line option such as
495 "console=ttySACx". (Try "man bootparam" or see the documentation of
496 your boot loader about how to pass options to the kernel at
499 config SERIAL_S3C2400
500 tristate "Samsung S3C2410 Serial port support"
501 depends on ARM && SERIAL_SAMSUNG && CPU_S3C2400
502 default y if CPU_S3C2400
504 Serial port support for the Samsung S3C2400 SoC
506 config SERIAL_S3C2410
507 tristate "Samsung S3C2410 Serial port support"
508 depends on SERIAL_SAMSUNG && CPU_S3C2410
509 default y if CPU_S3C2410
511 Serial port support for the Samsung S3C2410 SoC
513 config SERIAL_S3C2412
514 tristate "Samsung S3C2412/S3C2413 Serial port support"
515 depends on SERIAL_SAMSUNG && CPU_S3C2412
516 default y if CPU_S3C2412
518 Serial port support for the Samsung S3C2412 and S3C2413 SoC
520 config SERIAL_S3C2440
521 tristate "Samsung S3C2440/S3C2442/S3C2416 Serial port support"
522 depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442 || CPU_S3C2416)
523 default y if CPU_S3C2440
524 default y if CPU_S3C2442
525 select SERIAL_SAMSUNG_UARTS_4 if CPU_S3C2416
527 Serial port support for the Samsung S3C2440, S3C2416 and S3C2442 SoC
529 config SERIAL_S3C24A0
530 tristate "Samsung S3C24A0 Serial port support"
531 depends on SERIAL_SAMSUNG && CPU_S3C24A0
532 default y if CPU_S3C24A0
534 Serial port support for the Samsung S3C24A0 SoC
536 config SERIAL_S3C6400
537 tristate "Samsung S3C6400/S3C6410/S5P6440 Seria port support"
538 depends on SERIAL_SAMSUNG && (CPU_S3C6400 || CPU_S3C6410 || CPU_S5P6440)
539 select SERIAL_SAMSUNG_UARTS_4
542 Serial port support for the Samsung S3C6400, S3C6410 and S5P6440
545 config SERIAL_S5PC100
546 tristate "Samsung S5PC100 Serial port support"
547 depends on SERIAL_SAMSUNG && CPU_S5PC100
548 select SERIAL_SAMSUNG_UARTS_4
551 Serial port support for the Samsung S5PC100 SoCs
553 config SERIAL_S5PV210
554 tristate "Samsung S5PV210 Serial port support"
555 depends on SERIAL_SAMSUNG && (CPU_S5PV210 || CPU_S5P6442)
556 select SERIAL_SAMSUNG_UARTS_4 if CPU_S5PV210
559 Serial port support for Samsung's S5P Family of SoC's
561 config SERIAL_MAX3100
562 tristate "MAX3100 support"
569 bool "DECstation DZ serial driver"
570 depends on MACH_DECSTATION && 32BIT
574 DZ11-family serial controllers for DECstations and VAXstations,
575 including the DC7085, M7814, and M7819.
577 config SERIAL_DZ_CONSOLE
578 bool "Support console on DECstation DZ serial driver"
579 depends on SERIAL_DZ=y
580 select SERIAL_CORE_CONSOLE
583 If you say Y here, it will be possible to use a serial port as the
584 system console (the system console is the device which receives all
585 kernel messages and warnings and which allows logins in single user
588 Note that the firmware uses ttyS3 as the serial console on
589 DECstations that use this driver.
594 tristate "DECstation Z85C30 serial support"
595 depends on MACH_DECSTATION
599 Support for the Zilog 85C350 serial communications controller used
600 for serial ports in newer DECstation systems. These include the
601 DECsystem 5900 and all models of the DECstation and DECsystem 5000
602 systems except from model 200.
604 If unsure, say Y. To compile this driver as a module, choose M here:
605 the module will be called zs.
607 config SERIAL_ZS_CONSOLE
608 bool "Support for console on a DECstation Z85C30 serial port"
609 depends on SERIAL_ZS=y
610 select SERIAL_CORE_CONSOLE
613 If you say Y here, it will be possible to use a serial port as the
614 system console (the system console is the device which receives all
615 kernel messages and warnings and which allows logins in single user
618 Note that the firmware uses ttyS1 as the serial console on the
619 Maxine and ttyS3 on the others using this driver.
624 tristate "DC21285 serial port support"
625 depends on ARM && FOOTBRIDGE
628 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
629 PCI bridge you can enable its onboard serial port by enabling this
632 config SERIAL_21285_CONSOLE
633 bool "Console on DC21285 serial port"
634 depends on SERIAL_21285=y
635 select SERIAL_CORE_CONSOLE
637 If you have enabled the serial port on the 21285 footbridge you can
638 make it the console by answering Y to this option.
640 Even if you say Y here, the currently visible virtual console
641 (/dev/tty0) will still be used as the system console by default, but
642 you can alter that using a kernel command line option such as
643 "console=ttyFB". (Try "man bootparam" or see the documentation of
644 your boot loader (lilo or loadlin) about how to pass options to the
645 kernel at boot time.)
648 bool "Marvell MPSC serial port support"
649 depends on PPC32 && MV64X60
652 Say Y here if you want to use the Marvell MPSC serial controller.
654 config SERIAL_MPSC_CONSOLE
655 bool "Support for console on Marvell MPSC serial port"
656 depends on SERIAL_MPSC
657 select SERIAL_CORE_CONSOLE
659 Say Y here if you want to support a serial console on a Marvell MPSC.
662 bool "PXA serial port support"
663 depends on ARCH_PXA || ARCH_MMP
666 If you have a machine based on an Intel XScale PXA2xx CPU you
667 can enable its onboard serial ports by enabling this option.
669 config SERIAL_PXA_CONSOLE
670 bool "Console on PXA serial port"
671 depends on SERIAL_PXA
672 select SERIAL_CORE_CONSOLE
674 If you have enabled the serial port on the Intel XScale PXA
675 CPU you can make it the console by answering Y to this option.
677 Even if you say Y here, the currently visible virtual console
678 (/dev/tty0) will still be used as the system console by default, but
679 you can alter that using a kernel command line option such as
680 "console=ttySA0". (Try "man bootparam" or see the documentation of
681 your boot loader (lilo or loadlin) about how to pass options to the
682 kernel at boot time.)
685 bool "SA1100 serial port support"
686 depends on ARM && ARCH_SA1100
689 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
690 can enable its onboard serial port by enabling this option.
691 Please read <file:Documentation/arm/SA1100/serial_UART> for further
694 config SERIAL_SA1100_CONSOLE
695 bool "Console on SA1100 serial port"
696 depends on SERIAL_SA1100
697 select SERIAL_CORE_CONSOLE
699 If you have enabled the serial port on the SA1100/SA1110 StrongARM
700 CPU you can make it the console by answering Y to this option.
702 Even if you say Y here, the currently visible virtual console
703 (/dev/tty0) will still be used as the system console by default, but
704 you can alter that using a kernel command line option such as
705 "console=ttySA0". (Try "man bootparam" or see the documentation of
706 your boot loader (lilo or loadlin) about how to pass options to the
707 kernel at boot time.)
710 tristate "Blackfin serial port support"
713 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
715 Add support for the built-in UARTs on the Blackfin.
717 To compile this driver as a module, choose M here: the
718 module will be called bfin_5xx.
720 config SERIAL_BFIN_CONSOLE
721 bool "Console on Blackfin serial port"
722 depends on SERIAL_BFIN=y
723 select SERIAL_CORE_CONSOLE
727 depends on SERIAL_BFIN
728 default SERIAL_BFIN_DMA
730 This driver supports the built-in serial ports of the Blackfin family
733 config SERIAL_BFIN_DMA
735 depends on !DMA_UNCACHED_NONE && KGDB_SERIAL_CONSOLE=n
737 This driver works under DMA mode. If this option is selected, the
738 blackfin simple dma driver is also enabled.
740 config SERIAL_BFIN_PIO
743 This driver works under PIO mode.
747 config SERIAL_BFIN_UART0
749 depends on SERIAL_BFIN
753 config BFIN_UART0_CTSRTS
754 bool "Enable UART0 hardware flow control"
755 depends on SERIAL_BFIN_UART0
757 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
762 depends on BFIN_UART0_CTSRTS && !BF548
765 The default pin is GPIO_GP7.
766 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
770 depends on BFIN_UART0_CTSRTS && !BF548
773 The default pin is GPIO_GP6.
774 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
776 config SERIAL_BFIN_UART1
778 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
782 config BFIN_UART1_CTSRTS
783 bool "Enable UART1 hardware flow control"
784 depends on SERIAL_BFIN_UART1
786 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
791 depends on BFIN_UART1_CTSRTS && !BF548
794 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
798 depends on BFIN_UART1_CTSRTS && !BF548
801 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
803 config SERIAL_BFIN_UART2
805 depends on SERIAL_BFIN && (BF54x || BF538 || BF539)
809 config BFIN_UART2_CTSRTS
810 bool "Enable UART2 hardware flow control"
811 depends on SERIAL_BFIN_UART2
813 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
818 depends on BFIN_UART2_CTSRTS && !BF548
821 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
825 depends on BFIN_UART2_CTSRTS && !BF548
828 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
830 config SERIAL_BFIN_UART3
832 depends on SERIAL_BFIN && (BF54x)
836 config BFIN_UART3_CTSRTS
837 bool "Enable UART3 hardware flow control"
838 depends on SERIAL_BFIN_UART3
840 Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
845 depends on BFIN_UART3_CTSRTS && !BF548
848 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
852 depends on BFIN_UART3_CTSRTS && !BF548
855 Refer to arch/blackfin/mach-*/include/mach/gpio.h to see the GPIO map.
858 bool "IMX serial port support"
859 depends on ARM && (ARCH_IMX || ARCH_MXC)
863 If you have a machine based on a Motorola IMX CPU you
864 can enable its onboard serial port by enabling this option.
866 config SERIAL_IMX_CONSOLE
867 bool "Console on IMX serial port"
868 depends on SERIAL_IMX
869 select SERIAL_CORE_CONSOLE
871 If you have enabled the serial port on the Motorola IMX
872 CPU you can make it the console by answering Y to this option.
874 Even if you say Y here, the currently visible virtual console
875 (/dev/tty0) will still be used as the system console by default, but
876 you can alter that using a kernel command line option such as
877 "console=ttySA0". (Try "man bootparam" or see the documentation of
878 your boot loader (lilo or loadlin) about how to pass options to the
879 kernel at boot time.)
881 config SERIAL_UARTLITE
882 tristate "Xilinx uartlite serial port support"
883 depends on PPC32 || MICROBLAZE || MFD_TIMBERDALE
886 Say Y here if you want to use the Xilinx uartlite serial controller.
888 To compile this driver as a module, choose M here: the
889 module will be called uartlite.
891 config SERIAL_UARTLITE_CONSOLE
892 bool "Support for console on Xilinx uartlite serial port"
893 depends on SERIAL_UARTLITE=y
894 select SERIAL_CORE_CONSOLE
896 Say Y here if you wish to use a Xilinx uartlite as the system
897 console (the system console is the device which receives all kernel
898 messages and warnings and which allows logins in single user mode).
900 config SERIAL_SUNCORE
904 select SERIAL_CORE_CONSOLE
907 config SERIAL_SUNZILOG
908 tristate "Sun Zilog8530 serial support"
911 This driver supports the Zilog8530 serial ports found on many Sparc
912 systems. Say Y or M if you want to be able to these serial ports.
914 config SERIAL_SUNZILOG_CONSOLE
915 bool "Console on Sun Zilog8530 serial port"
916 depends on SERIAL_SUNZILOG=y
918 If you would like to be able to use the Zilog8530 serial port
919 on your Sparc system as the console, you can do so by answering
923 tristate "Sun SU serial support"
924 depends on SPARC && PCI
926 This driver supports the 8250 serial ports that run the keyboard and
927 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
928 to these serial ports.
930 config SERIAL_SUNSU_CONSOLE
931 bool "Console on Sun SU serial port"
932 depends on SERIAL_SUNSU=y
934 If you would like to be able to use the SU serial port
935 on your Sparc system as the console, you can do so by answering
939 tristate "Serial MUX support"
944 Saying Y here will enable the hardware MUX serial driver for
945 the Nova, K class systems and D class with a 'remote control card'.
946 The hardware MUX is not 8250/16550 compatible therefore the
947 /dev/ttyB0 device is shared between the Serial MUX and the PDC
948 software console. The following steps need to be completed to use
951 1. create the device entry (mknod /dev/ttyB0 c 11 0)
952 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
953 3. Add device ttyB0 to /etc/securetty (if you want to log on as
954 root on this console.)
955 4. Change the kernel command console parameter to: console=ttyB0
957 config SERIAL_MUX_CONSOLE
958 bool "Support for console on serial MUX"
959 depends on SERIAL_MUX=y
960 select SERIAL_CORE_CONSOLE
964 bool "PDC software console support"
965 depends on PARISC && !SERIAL_MUX && VT
968 Saying Y here will enable the software based PDC console to be
969 used as the system console. This is useful for machines in
970 which the hardware based console has not been written yet. The
971 following steps must be competed to use the PDC console:
973 1. create the device entry (mknod /dev/ttyB0 c 11 0)
974 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
975 3. Add device ttyB0 to /etc/securetty (if you want to log on as
976 root on this console.)
977 4. Change the kernel command console parameter to: console=ttyB0
980 tristate "Sun Siemens SAB82532 serial support"
981 depends on SPARC && PCI
983 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
984 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
987 config SERIAL_SUNSAB_CONSOLE
988 bool "Console on Sun Siemens SAB82532 serial port"
989 depends on SERIAL_SUNSAB=y
991 If you would like to be able to use the SAB82532 serial port
992 on your Sparc system as the console, you can do so by answering
996 bool "Sun4v Hypervisor Console support"
999 This driver supports the console device found on SUN4V Sparc
1000 systems. Say Y if you want to be able to use this device.
1002 config SERIAL_IP22_ZILOG
1003 tristate "SGI Zilog8530 serial support"
1004 depends on SGI_HAS_ZILOG
1007 This driver supports the Zilog8530 serial ports found on SGI
1008 systems. Say Y or M if you want to be able to these serial ports.
1010 config SERIAL_IP22_ZILOG_CONSOLE
1011 bool "Console on SGI Zilog8530 serial port"
1012 depends on SERIAL_IP22_ZILOG=y
1013 select SERIAL_CORE_CONSOLE
1015 config SERIAL_SH_SCI
1016 tristate "SuperH SCI(F) serial port support"
1017 depends on HAVE_CLK && (SUPERH || H8300 || ARCH_SHMOBILE)
1020 config SERIAL_SH_SCI_NR_UARTS
1021 int "Maximum number of SCI(F) serial ports"
1022 depends on SERIAL_SH_SCI
1025 config SERIAL_SH_SCI_CONSOLE
1026 bool "Support for console on SuperH SCI(F)"
1027 depends on SERIAL_SH_SCI=y
1028 select SERIAL_CORE_CONSOLE
1030 config SERIAL_SH_SCI_DMA
1032 depends on SERIAL_SH_SCI && SH_DMAE && EXPERIMENTAL
1034 config SERIAL_PNX8XXX
1035 bool "Enable PNX8XXX SoCs' UART Support"
1036 depends on MIPS && (SOC_PNX8550 || SOC_PNX833X)
1039 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
1040 and you want to use serial ports, say Y. Otherwise, say N.
1042 config SERIAL_PNX8XXX_CONSOLE
1043 bool "Enable PNX8XX0 serial console"
1044 depends on SERIAL_PNX8XXX
1045 select SERIAL_CORE_CONSOLE
1047 If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
1048 and you want to use serial console, say Y. Otherwise, say N.
1053 config SERIAL_CORE_CONSOLE
1060 bool "68328 serial support"
1061 depends on M68328 || M68EZ328 || M68VZ328
1063 This driver supports the built-in serial port of the Motorola 68328
1064 (standard, EZ and VZ varieties).
1066 config SERIAL_68328_RTS_CTS
1067 bool "Support RTS/CTS on 68328 serial port"
1068 depends on SERIAL_68328
1071 bool "Coldfire serial support"
1075 This serial driver supports the Freescale Coldfire serial ports.
1077 config SERIAL_MCF_BAUDRATE
1078 int "Default baudrate for Coldfire serial ports"
1079 depends on SERIAL_MCF
1082 This setting lets you define what the default baudrate is for the
1083 ColdFire serial ports. The usual default varies from board to board,
1084 and this setting is a way of catering for that.
1086 config SERIAL_MCF_CONSOLE
1087 bool "Coldfire serial console support"
1088 depends on SERIAL_MCF
1089 select SERIAL_CORE_CONSOLE
1091 Enable a ColdFire internal serial port to be the system console.
1093 config SERIAL_68360_SMC
1094 bool "68360 SMC uart support"
1097 This driver supports the SMC serial ports of the Motorola 68360 CPU.
1099 config SERIAL_68360_SCC
1100 bool "68360 SCC uart support"
1103 This driver supports the SCC serial ports of the Motorola 68360 CPU.
1107 depends on SERIAL_68360_SMC || SERIAL_68360_SCC
1110 config SERIAL_PMACZILOG
1111 tristate "Mac or PowerMac z85c30 ESCC support"
1112 depends on (M68K && MAC) || (PPC_OF && PPC_PMAC)
1115 This driver supports the Zilog z85C30 serial ports found on
1116 (Power)Mac machines.
1117 Say Y or M if you want to be able to these serial ports.
1119 config SERIAL_PMACZILOG_TTYS
1120 bool "Use ttySn device nodes for Zilog z85c30"
1121 depends on SERIAL_PMACZILOG
1123 The pmac_zilog driver for the z85C30 chip on many powermacs
1124 historically used the device numbers for /dev/ttySn. The
1125 8250 serial port driver also uses these numbers, which means
1126 the two drivers being unable to coexist; you could not use
1127 both z85C30 and 8250 type ports at the same time.
1129 If this option is not selected, the pmac_zilog driver will
1130 use the device numbers allocated for /dev/ttyPZn. This allows
1131 the pmac_zilog and 8250 drivers to co-exist, but may cause
1132 existing userspace setups to break. Programs that need to
1133 access the built-in serial ports on powermacs will need to
1134 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
1136 If you enable this option, any z85c30 ports in the system will
1137 be registered as ttyS0 onwards as in the past, and you will be
1138 unable to use the 8250 module for PCMCIA or other 16C550-style
1141 Say N unless you need the z85c30 ports on your (Power)Mac
1142 to appear as /dev/ttySn.
1144 config SERIAL_PMACZILOG_CONSOLE
1145 bool "Console on Mac or PowerMac z85c30 serial port"
1146 depends on SERIAL_PMACZILOG=y
1147 select SERIAL_CORE_CONSOLE
1149 If you would like to be able to use the z85c30 serial port
1150 on your (Power)Mac as the console, you can do so by answering
1153 config SERIAL_LH7A40X
1154 tristate "Sharp LH7A40X embedded UART support"
1155 depends on ARM && ARCH_LH7A40X
1158 This enables support for the three on-board UARTs of the
1159 Sharp LH7A40X series CPUs. Choose Y or M.
1161 config SERIAL_LH7A40X_CONSOLE
1162 bool "Support for console on Sharp LH7A40X serial port"
1163 depends on SERIAL_LH7A40X=y
1164 select SERIAL_CORE_CONSOLE
1166 Say Y here if you wish to use one of the serial ports as the
1167 system console--the system console is the device which
1168 receives all kernel messages and warnings and which allows
1169 logins in single user mode.
1171 Even if you say Y here, the currently visible framebuffer console
1172 (/dev/tty0) will still be used as the default system console, but
1173 you can alter that using a kernel command line, for example
1177 tristate "CPM SCC/SMC serial port support"
1178 depends on CPM2 || 8xx
1181 This driver supports the SCC and SMC serial ports on Motorola
1182 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
1184 config SERIAL_CPM_CONSOLE
1185 bool "Support for console on CPM SCC/SMC serial port"
1186 depends on SERIAL_CPM=y
1187 select SERIAL_CORE_CONSOLE
1189 Say Y here if you wish to use a SCC or SMC CPM UART as the system
1190 console (the system console is the device which receives all kernel
1191 messages and warnings and which allows logins in single user mode).
1193 Even if you say Y here, the currently visible framebuffer console
1194 (/dev/tty0) will still be used as the system console by default, but
1195 you can alter that using a kernel command line option such as
1196 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
1197 your boot loader (lilo or loadlin) about how to pass options to the
1198 kernel at boot time.)
1200 config SERIAL_SGI_L1_CONSOLE
1201 bool "SGI Altix L1 serial console support"
1202 depends on IA64_GENERIC || IA64_SGI_SN2
1204 select SERIAL_CORE_CONSOLE
1206 If you have an SGI Altix and you would like to use the system
1207 controller serial port as your console (you want this!),
1208 say Y. Otherwise, say N.
1210 config SERIAL_MPC52xx
1211 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
1212 depends on PPC_MPC52xx || PPC_MPC512x
1215 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
1216 like to use them, you must answer Y or M to this option. Note that
1217 for use as console, it must be included in kernel and not as a
1220 config SERIAL_MPC52xx_CONSOLE
1221 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
1222 depends on SERIAL_MPC52xx=y
1223 select SERIAL_CORE_CONSOLE
1225 Select this options if you'd like to use one of the PSC serial port
1226 of the Freescale MPC52xx family as a console.
1228 config SERIAL_MPC52xx_CONSOLE_BAUD
1229 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
1230 depends on SERIAL_MPC52xx_CONSOLE=y
1233 Select the MPC52xx console baud rate.
1234 This value is only used if the bootloader doesn't pass in the
1238 tristate "IBM Multiport Serial Adapter"
1239 depends on PCI && (PPC_ISERIES || PPC_PSERIES)
1243 This driver is for a family of multiport serial adapters
1244 including 2 port RVX, 2 port internal modem, 4 port internal
1245 modem and a split 1 port RVX and 1 port internal modem.
1247 This driver can also be built as a module. If so, the module
1248 will be called icom.
1250 config SERIAL_M32R_SIO
1256 Say Y here if you want to use the M32R serial controller.
1258 config SERIAL_M32R_SIO_CONSOLE
1259 bool "use SIO console"
1260 depends on SERIAL_M32R_SIO=y
1261 select SERIAL_CORE_CONSOLE
1263 Say Y here if you want to support a serial console.
1265 If you use an M3T-M32700UT or an OPSPUT platform,
1266 please say also y for SERIAL_M32R_PLDSIO.
1268 config SERIAL_M32R_PLDSIO
1269 bool "M32R SIO I/F on a PLD"
1270 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1273 Say Y here if you want to use the M32R serial controller
1274 on a PLD (Programmable Logic Device).
1276 If you use an M3T-M32700UT or an OPSPUT platform,
1280 bool "TMPTX39XX/49XX SIO support"
1281 depends on HAS_TXX9_SERIAL
1285 config HAS_TXX9_SERIAL
1288 config SERIAL_TXX9_NR_UARTS
1289 int "Maximum number of TMPTX39XX/49XX SIO ports"
1290 depends on SERIAL_TXX9
1293 config SERIAL_TXX9_CONSOLE
1294 bool "TMPTX39XX/49XX SIO Console support"
1295 depends on SERIAL_TXX9=y
1296 select SERIAL_CORE_CONSOLE
1298 config SERIAL_TXX9_STDSERIAL
1299 bool "TX39XX/49XX SIO act as standard serial"
1300 depends on !SERIAL_8250 && SERIAL_TXX9
1302 config SERIAL_VR41XX
1303 tristate "NEC VR4100 series Serial Interface Unit support"
1304 depends on CPU_VR41XX
1307 If you have a NEC VR4100 series processor and you want to use
1308 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1309 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1311 config SERIAL_VR41XX_CONSOLE
1312 bool "Enable NEC VR4100 series Serial Interface Unit console"
1313 depends on SERIAL_VR41XX=y
1314 select SERIAL_CORE_CONSOLE
1316 If you have a NEC VR4100 series processor and you want to use
1317 a console on a serial port, say Y. Otherwise, say N.
1320 tristate "Digi International NEO PCI Support"
1324 This is a driver for Digi International's Neo series
1325 of cards which provide multiple serial ports. You would need
1326 something like this to connect more than two modems to your Linux
1327 box, for instance in order to become a dial-in server. This driver
1328 supports PCI boards only.
1330 If you have a card like this, say Y here, otherwise say N.
1332 To compile this driver as a module, choose M here: the
1333 module will be called jsm.
1335 config SERIAL_SGI_IOC4
1336 tristate "SGI IOC4 controller serial support"
1337 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1340 If you have an SGI Altix with an IOC4 based Base IO card
1341 and wish to use the serial ports on this card, say Y.
1344 config SERIAL_SGI_IOC3
1345 tristate "SGI Altix IOC3 serial support"
1346 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1349 If you have an SGI Altix with an IOC3 serial card,
1350 say Y or M. Otherwise, say N.
1353 bool "MSM on-chip serial port support"
1354 depends on ARM && ARCH_MSM
1357 config SERIAL_MSM_CONSOLE
1358 bool "MSM serial console support"
1359 depends on SERIAL_MSM=y
1360 select SERIAL_CORE_CONSOLE
1363 tristate "NetX serial port support"
1364 depends on ARM && ARCH_NETX
1367 If you have a machine based on a Hilscher NetX SoC you
1368 can enable its onboard serial port by enabling this option.
1370 To compile this driver as a module, choose M here: the
1371 module will be called netx-serial.
1373 config SERIAL_NETX_CONSOLE
1374 bool "Console on NetX serial port"
1375 depends on SERIAL_NETX=y
1376 select SERIAL_CORE_CONSOLE
1378 If you have enabled the serial port on the Hilscher NetX SoC
1379 you can make it the console by answering Y to this option.
1381 config SERIAL_OF_PLATFORM
1382 tristate "Serial port on Open Firmware platform bus"
1383 depends on PPC_OF || MICROBLAZE
1384 depends on SERIAL_8250 || SERIAL_OF_PLATFORM_NWPSERIAL
1386 If you have a PowerPC based system that has serial ports
1387 on a platform specific bus, you should enable this option.
1388 Currently, only 8250 compatible ports are supported, but
1389 others can easily be added.
1391 config SERIAL_OF_PLATFORM_NWPSERIAL
1392 tristate "NWP serial port driver"
1393 depends on PPC_OF && PPC_DCR
1394 select SERIAL_OF_PLATFORM
1395 select SERIAL_CORE_CONSOLE
1398 This driver supports the cell network processor nwp serial
1401 config SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE
1402 bool "Console on NWP serial port"
1403 depends on SERIAL_OF_PLATFORM_NWPSERIAL=y
1404 select SERIAL_CORE_CONSOLE
1406 Support for Console on the NWP serial ports.
1409 tristate "Freescale QUICC Engine serial port support"
1410 depends on QUICC_ENGINE
1415 This driver supports the QE serial ports on Freescale embedded
1416 PowerPC that contain a QUICC Engine.
1418 config SERIAL_SC26XX
1419 tristate "SC2681/SC2692 serial port support"
1423 This is a driver for the onboard serial ports of
1424 older RM400 machines.
1426 config SERIAL_SC26XX_CONSOLE
1427 bool "Console on SC2681/SC2692 serial port"
1428 depends on SERIAL_SC26XX
1429 select SERIAL_CORE_CONSOLE
1431 Support for Console on SC2681/SC2692 serial ports.
1433 config SERIAL_BFIN_SPORT
1434 tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
1435 depends on BLACKFIN && EXPERIMENTAL
1438 Enable SPORT emulate UART on Blackfin series.
1440 To compile this driver as a module, choose M here: the
1441 module will be called bfin_sport_uart.
1443 config SERIAL_BFIN_SPORT_CONSOLE
1444 bool "Console on Blackfin sport emulated uart"
1445 depends on SERIAL_BFIN_SPORT=y
1446 select SERIAL_CORE_CONSOLE
1448 config SERIAL_BFIN_SPORT0_UART
1449 bool "Enable UART over SPORT0"
1450 depends on SERIAL_BFIN_SPORT && !(BF542 || BF542M || BF544 || BF544M)
1452 Enable UART over SPORT0
1454 config SERIAL_BFIN_SPORT1_UART
1455 bool "Enable UART over SPORT1"
1456 depends on SERIAL_BFIN_SPORT
1458 Enable UART over SPORT1
1460 config SERIAL_BFIN_SPORT2_UART
1461 bool "Enable UART over SPORT2"
1462 depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1464 Enable UART over SPORT2
1466 config SERIAL_BFIN_SPORT3_UART
1467 bool "Enable UART over SPORT3"
1468 depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1470 Enable UART over SPORT3
1472 config SERIAL_TIMBERDALE
1473 tristate "Support for timberdale UART"
1476 Add support for UART controller on timberdale.
1478 config SERIAL_BCM63XX
1479 tristate "bcm63xx serial port support"
1483 If you have a bcm63xx CPU, you can enable its onboard
1484 serial port by enabling this options.
1486 To compile this driver as a module, choose M here: the
1487 module will be called bcm963xx_uart.
1489 config SERIAL_BCM63XX_CONSOLE
1490 bool "Console on bcm63xx serial port"
1491 depends on SERIAL_BCM63XX=y
1492 select SERIAL_CORE_CONSOLE
1494 If you have enabled the serial port on the bcm63xx CPU
1495 you can make it the console by answering Y to this option.
1497 config SERIAL_GRLIB_GAISLER_APBUART
1498 tristate "GRLIB APBUART serial support"
1501 Add support for the GRLIB APBUART serial port.
1503 config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1504 bool "Console on GRLIB APBUART serial port"
1505 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1506 select SERIAL_CORE_CONSOLE
1508 Support for running a console on the GRLIB APBUART