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Linux/drivers/tty/serial/Kconfig

  1 #
  2 # Serial device configuration
  3 #
  4 
  5 if TTY
  6 
  7 menu "Serial drivers"
  8         depends on HAS_IOMEM
  9 
 10 config SERIAL_EARLYCON
 11         bool
 12         help
 13           Support for early consoles with the earlycon parameter. This enables
 14           the console before standard serial driver is probed. The console is
 15           enabled when early_param is processed.
 16 
 17 source "drivers/tty/serial/8250/Kconfig"
 18 
 19 comment "Non-8250 serial port support"
 20 
 21 config SERIAL_AMBA_PL010
 22         tristate "ARM AMBA PL010 serial port support"
 23         depends on ARM_AMBA
 24         select SERIAL_CORE
 25         help
 26           This selects the ARM(R) AMBA(R) PrimeCell PL010 UART.  If you have
 27           an Integrator/AP or Integrator/PP2 platform, or if you have a
 28           Cirrus Logic EP93xx CPU, say Y or M here.
 29 
 30           If unsure, say N.
 31 
 32 config SERIAL_AMBA_PL010_CONSOLE
 33         bool "Support for console on AMBA serial port"
 34         depends on SERIAL_AMBA_PL010=y
 35         select SERIAL_CORE_CONSOLE
 36         ---help---
 37           Say Y here if you wish to use an AMBA PrimeCell UART as the system
 38           console (the system console is the device which receives all kernel
 39           messages and warnings and which allows logins in single user mode).
 40 
 41           Even if you say Y here, the currently visible framebuffer console
 42           (/dev/tty0) will still be used as the system console by default, but
 43           you can alter that using a kernel command line option such as
 44           "console=ttyAM0". (Try "man bootparam" or see the documentation of
 45           your boot loader (lilo or loadlin) about how to pass options to the
 46           kernel at boot time.)
 47 
 48 config SERIAL_AMBA_PL011
 49         tristate "ARM AMBA PL011 serial port support"
 50         depends on ARM_AMBA
 51         select SERIAL_CORE
 52         help
 53           This selects the ARM(R) AMBA(R) PrimeCell PL011 UART.  If you have
 54           an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
 55           here.
 56 
 57           If unsure, say N.
 58 
 59 config SERIAL_AMBA_PL011_CONSOLE
 60         bool "Support for console on AMBA serial port"
 61         depends on SERIAL_AMBA_PL011=y
 62         select SERIAL_CORE_CONSOLE
 63         select SERIAL_EARLYCON
 64         ---help---
 65           Say Y here if you wish to use an AMBA PrimeCell UART as the system
 66           console (the system console is the device which receives all kernel
 67           messages and warnings and which allows logins in single user mode).
 68 
 69           Even if you say Y here, the currently visible framebuffer console
 70           (/dev/tty0) will still be used as the system console by default, but
 71           you can alter that using a kernel command line option such as
 72           "console=ttyAMA0". (Try "man bootparam" or see the documentation of
 73           your boot loader (lilo or loadlin) about how to pass options to the
 74           kernel at boot time.)
 75 
 76 config SERIAL_EARLYCON_ARM_SEMIHOST
 77         bool "Early console using ARM semihosting"
 78         depends on ARM64 || ARM
 79         select SERIAL_CORE
 80         select SERIAL_CORE_CONSOLE
 81         select SERIAL_EARLYCON
 82         help
 83           Support for early debug console using ARM semihosting. This enables
 84           the console before standard serial driver is probed. This is enabled
 85           with "earlycon=smh" on the kernel command line. The console is
 86           enabled when early_param is processed.
 87 
 88 config SERIAL_SB1250_DUART
 89         tristate "BCM1xxx on-chip DUART serial support"
 90         depends on SIBYTE_SB1xxx_SOC=y
 91         select SERIAL_CORE
 92         default y
 93         ---help---
 94           Support for the asynchronous serial interface (DUART) included in
 95           the BCM1250 and derived System-On-a-Chip (SOC) devices.  Note that
 96           the letter D in DUART stands for "dual", which is how the device
 97           is implemented.  Depending on the SOC configuration there may be
 98           one or more DUARTs available of which all are handled.
 99 
100           If unsure, say Y.  To compile this driver as a module, choose M here:
101           the module will be called sb1250-duart.
102 
103 config SERIAL_SB1250_DUART_CONSOLE
104         bool "Support for console on a BCM1xxx DUART serial port"
105         depends on SERIAL_SB1250_DUART=y
106         select SERIAL_CORE_CONSOLE
107         default y
108         ---help---
109           If you say Y here, it will be possible to use a serial port as the
110           system console (the system console is the device which receives all
111           kernel messages and warnings and which allows logins in single user
112           mode).
113 
114           If unsure, say Y.
115 
116 config SERIAL_ATMEL
117         bool "AT91 / AT32 on-chip serial port support"
118         depends on HAS_DMA
119         depends on ARCH_AT91 || AVR32 || COMPILE_TEST
120         select SERIAL_CORE
121         select SERIAL_MCTRL_GPIO if GPIOLIB
122         help
123           This enables the driver for the on-chip UARTs of the Atmel
124           AT91 and AT32 processors.
125 
126 config SERIAL_ATMEL_CONSOLE
127         bool "Support for console on AT91 / AT32 serial port"
128         depends on SERIAL_ATMEL=y
129         select SERIAL_CORE_CONSOLE
130         help
131           Say Y here if you wish to use an on-chip UART on a Atmel
132           AT91 or AT32 processor as the system console (the system
133           console is the device which receives all kernel messages and
134           warnings and which allows logins in single user mode).
135 
136 config SERIAL_ATMEL_PDC
137         bool "Support DMA transfers on AT91 / AT32 serial port"
138         depends on SERIAL_ATMEL
139         default y
140         help
141           Say Y here if you wish to use the PDC to do DMA transfers to
142           and from the Atmel AT91 / AT32 serial port. In order to
143           actually use DMA transfers, make sure that the use_dma_tx
144           and use_dma_rx members in the atmel_uart_data struct is set
145           appropriately for each port.
146 
147           Note that break and error handling currently doesn't work
148           properly when DMA is enabled. Make sure that ports where
149           this matters don't use DMA.
150 
151 config SERIAL_ATMEL_TTYAT
152         bool "Install as device ttyATn instead of ttySn"
153         depends on SERIAL_ATMEL=y
154         help
155           Say Y here if you wish to have the internal AT91 / AT32 UARTs
156           appear as /dev/ttyATn (major 204, minor starting at 154)
157           instead of the normal /dev/ttySn (major 4, minor starting at
158           64). This is necessary if you also want other UARTs, such as
159           external 8250/16C550 compatible UARTs.
160           The ttySn nodes are legally reserved for the 8250 serial driver
161           but are often misused by other serial drivers.
162 
163           To use this, you should create suitable ttyATn device nodes in
164           /dev/, and pass "console=ttyATn" to the kernel.
165 
166           Say Y if you have an external 8250/16C550 UART.  If unsure, say N.
167 
168 config SERIAL_KGDB_NMI
169         bool "Serial console over KGDB NMI debugger port"
170         depends on KGDB_SERIAL_CONSOLE
171         help
172           This special driver allows you to temporary use NMI debugger port
173           as a normal console (assuming that the port is attached to KGDB).
174 
175           Unlike KDB's disable_nmi command, with this driver you are always
176           able to go back to the debugger using KGDB escape sequence ($3#33).
177           This is because this console driver processes the input in NMI
178           context, and thus is able to intercept the magic sequence.
179 
180           Note that since the console interprets input and uses polling
181           communication methods, for things like PPP you still must fully
182           detach debugger port from the KGDB NMI (i.e. disable_nmi), and
183           use raw console.
184 
185           If unsure, say N.
186 
187 config SERIAL_KS8695
188         bool "Micrel KS8695 (Centaur) serial port support"
189         depends on ARCH_KS8695
190         select SERIAL_CORE
191         help
192           This selects the Micrel Centaur KS8695 UART.  Say Y here.
193 
194 config SERIAL_KS8695_CONSOLE
195         bool "Support for console on KS8695 (Centaur) serial port"
196         depends on SERIAL_KS8695=y
197         select SERIAL_CORE_CONSOLE
198         help
199           Say Y here if you wish to use a KS8695 (Centaur) UART as the
200           system console (the system console is the device which
201           receives all kernel messages and warnings and which allows
202           logins in single user mode).
203 
204 config SERIAL_MESON
205         tristate "Meson serial port support"
206         depends on ARCH_MESON
207         select SERIAL_CORE
208         help
209           This enables the driver for the on-chip UARTs of the Amlogic
210           MesonX processors.
211 
212 config SERIAL_MESON_CONSOLE
213         bool "Support for console on meson"
214         depends on SERIAL_MESON=y
215         select SERIAL_CORE_CONSOLE
216         select SERIAL_EARLYCON
217         help
218           Say Y here if you wish to use a Amlogic MesonX UART as the
219           system console (the system console is the device which
220           receives all kernel messages and warnings and which allows
221           logins in single user mode) as /dev/ttyAMLx.
222 
223 config SERIAL_CLPS711X
224         tristate "CLPS711X serial port support"
225         depends on ARCH_CLPS711X || COMPILE_TEST
226         select SERIAL_CORE
227         select SERIAL_MCTRL_GPIO if GPIOLIB
228         help
229           This enables the driver for the on-chip UARTs of the Cirrus
230           Logic EP711x/EP721x/EP731x processors.
231 
232 config SERIAL_CLPS711X_CONSOLE
233         bool "Support for console on CLPS711X serial port"
234         depends on SERIAL_CLPS711X=y
235         select SERIAL_CORE_CONSOLE
236         help
237           Even if you say Y here, the currently visible virtual console
238           (/dev/tty0) will still be used as the system console by default, but
239           you can alter that using a kernel command line option such as
240           "console=ttyCL1".
241 
242 config SERIAL_SAMSUNG
243         tristate "Samsung SoC serial support"
244         depends on PLAT_SAMSUNG || ARCH_EXYNOS
245         select SERIAL_CORE
246         help
247           Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
248           providing /dev/ttySAC0, 1 and 2 (note, some machines may not
249           provide all of these ports, depending on how the serial port
250           pins are configured.
251 
252 config SERIAL_SAMSUNG_UARTS_4
253         bool
254         depends on SERIAL_SAMSUNG
255         default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
256         help
257           Internal node for the common case of 4 Samsung compatible UARTs
258 
259 config SERIAL_SAMSUNG_UARTS
260         int
261         depends on SERIAL_SAMSUNG
262         default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
263         default 3
264         help
265           Select the number of available UART ports for the Samsung S3C
266           serial driver
267         
268 config SERIAL_SAMSUNG_DEBUG
269         bool "Samsung SoC serial debug"
270         depends on SERIAL_SAMSUNG && DEBUG_LL
271         help
272           Add support for debugging the serial driver. Since this is
273           generally being used as a console, we use our own output
274           routines that go via the low-level debug printascii()
275           function.
276 
277 config SERIAL_SAMSUNG_CONSOLE
278         bool "Support for console on Samsung SoC serial port"
279         depends on SERIAL_SAMSUNG=y
280         select SERIAL_CORE_CONSOLE
281         select SERIAL_EARLYCON
282         help
283           Allow selection of the S3C24XX on-board serial ports for use as
284           an virtual console.
285 
286           Even if you say Y here, the currently visible virtual console
287           (/dev/tty0) will still be used as the system console by default, but
288           you can alter that using a kernel command line option such as
289           "console=ttySACx". (Try "man bootparam" or see the documentation of
290           your boot loader about how to pass options to the kernel at
291           boot time.)
292 
293 config SERIAL_SIRFSOC
294         tristate "SiRF SoC Platform Serial port support"
295         depends on ARCH_SIRF
296         select SERIAL_CORE
297         help
298           Support for the on-chip UART on the CSR SiRFprimaII series,
299           providing /dev/ttySiRF0, 1 and 2 (note, some machines may not
300           provide all of these ports, depending on how the serial port
301           pins are configured).
302 
303 config SERIAL_SIRFSOC_CONSOLE
304         bool "Support for console on SiRF SoC serial port"
305         depends on SERIAL_SIRFSOC=y
306         select SERIAL_CORE_CONSOLE
307         help
308           Even if you say Y here, the currently visible virtual console
309           (/dev/tty0) will still be used as the system console by default, but
310           you can alter that using a kernel command line option such as
311           "console=ttySiRFx". (Try "man bootparam" or see the documentation of
312           your boot loader about how to pass options to the kernel at
313           boot time.)
314 
315 config SERIAL_TEGRA
316         tristate "NVIDIA Tegra20/30 SoC serial controller"
317         depends on ARCH_TEGRA && TEGRA20_APB_DMA
318         select SERIAL_CORE
319         help
320           Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
321           providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not
322           provide all of these ports, depending on how the serial port
323           are enabled). This driver uses the APB DMA to achieve higher baudrate
324           and better performance.
325 
326 config SERIAL_MAX3100
327         tristate "MAX3100 support"
328         depends on SPI
329         select SERIAL_CORE
330         help
331           MAX3100 chip support
332 
333 config SERIAL_MAX310X
334         tristate "MAX310X support"
335         depends on SPI_MASTER
336         select SERIAL_CORE
337         select REGMAP_SPI if SPI_MASTER
338         default n
339         help
340           This selects support for an advanced UART from Maxim (Dallas).
341           Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830.
342           Each IC contains 128 words each of receive and transmit FIFO
343           that can be controlled through I2C or high-speed SPI.
344 
345           Say Y here if you want to support this ICs.
346 
347 config SERIAL_DZ
348         bool "DECstation DZ serial driver"
349         depends on MACH_DECSTATION && 32BIT
350         select SERIAL_CORE
351         default y
352         ---help---
353           DZ11-family serial controllers for DECstations and VAXstations,
354           including the DC7085, M7814, and M7819.
355 
356 config SERIAL_DZ_CONSOLE
357         bool "Support console on DECstation DZ serial driver"
358         depends on SERIAL_DZ=y
359         select SERIAL_CORE_CONSOLE
360         default y
361         ---help---
362           If you say Y here, it will be possible to use a serial port as the
363           system console (the system console is the device which receives all
364           kernel messages and warnings and which allows logins in single user
365           mode).
366 
367           Note that the firmware uses ttyS3 as the serial console on
368           DECstations that use this driver.
369 
370           If unsure, say Y.
371 
372 config SERIAL_ZS
373         tristate "DECstation Z85C30 serial support"
374         depends on MACH_DECSTATION
375         select SERIAL_CORE
376         default y
377         ---help---
378           Support for the Zilog 85C350 serial communications controller used
379           for serial ports in newer DECstation systems.  These include the
380           DECsystem 5900 and all models of the DECstation and DECsystem 5000
381           systems except from model 200.
382 
383           If unsure, say Y.  To compile this driver as a module, choose M here:
384           the module will be called zs.
385 
386 config SERIAL_ZS_CONSOLE
387         bool "Support for console on a DECstation Z85C30 serial port"
388         depends on SERIAL_ZS=y
389         select SERIAL_CORE_CONSOLE
390         default y
391         ---help---
392           If you say Y here, it will be possible to use a serial port as the
393           system console (the system console is the device which receives all
394           kernel messages and warnings and which allows logins in single user
395           mode).
396 
397           Note that the firmware uses ttyS1 as the serial console on the
398           Maxine and ttyS3 on the others using this driver.
399 
400           If unsure, say Y.
401 
402 config SERIAL_21285
403         tristate "DC21285 serial port support"
404         depends on FOOTBRIDGE
405         select SERIAL_CORE
406         help
407           If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
408           PCI bridge you can enable its onboard serial port by enabling this
409           option.
410 
411 config SERIAL_21285_CONSOLE
412         bool "Console on DC21285 serial port"
413         depends on SERIAL_21285=y
414         select SERIAL_CORE_CONSOLE
415         help
416           If you have enabled the serial port on the 21285 footbridge you can
417           make it the console by answering Y to this option.
418 
419           Even if you say Y here, the currently visible virtual console
420           (/dev/tty0) will still be used as the system console by default, but
421           you can alter that using a kernel command line option such as
422           "console=ttyFB". (Try "man bootparam" or see the documentation of
423           your boot loader (lilo or loadlin) about how to pass options to the
424           kernel at boot time.)
425 
426 config SERIAL_MPSC
427         bool "Marvell MPSC serial port support"
428         depends on MV64X60
429         select SERIAL_CORE
430         help
431           Say Y here if you want to use the Marvell MPSC serial controller.
432 
433 config SERIAL_MPSC_CONSOLE
434         bool "Support for console on Marvell MPSC serial port"
435         depends on SERIAL_MPSC
436         select SERIAL_CORE_CONSOLE
437         help
438           Say Y here if you want to support a serial console on a Marvell MPSC.
439 
440 config SERIAL_PXA
441         bool "PXA serial port support (DEPRECATED)"
442         depends on ARCH_PXA || ARCH_MMP
443         select SERIAL_CORE
444         select SERIAL_8250_PXA if SERIAL_8250=y
445         select SERIAL_PXA_NON8250 if !SERIAL_8250=y
446         help
447           If you have a machine based on an Intel XScale PXA2xx CPU you
448           can enable its onboard serial ports by enabling this option.
449 
450           Unless you have a specific need, you should use SERIAL_8250_PXA
451           instead of this.
452 
453 config SERIAL_PXA_NON8250
454         bool
455         depends on !SERIAL_8250
456 
457 config SERIAL_PXA_CONSOLE
458         bool "Console on PXA serial port (DEPRECATED)"
459         depends on SERIAL_PXA
460         select SERIAL_CORE_CONSOLE
461         select SERIAL_8250_CONSOLE if SERIAL_8250=y
462         help
463           If you have enabled the serial port on the Intel XScale PXA
464           CPU you can make it the console by answering Y to this option.
465 
466           Even if you say Y here, the currently visible virtual console
467           (/dev/tty0) will still be used as the system console by default, but
468           you can alter that using a kernel command line option such as
469           "console=ttySA0". (Try "man bootparam" or see the documentation of
470           your boot loader (lilo or loadlin) about how to pass options to the
471           kernel at boot time.)
472 
473           Unless you have a specific need, you should use SERIAL_8250_PXA
474           and SERIAL_8250_CONSOLE instead of this.
475 
476 config SERIAL_SA1100
477         bool "SA1100 serial port support"
478         depends on ARCH_SA1100
479         select SERIAL_CORE
480         help
481           If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
482           can enable its onboard serial port by enabling this option.
483           Please read <file:Documentation/arm/SA1100/serial_UART> for further
484           info.
485 
486 config SERIAL_SA1100_CONSOLE
487         bool "Console on SA1100 serial port"
488         depends on SERIAL_SA1100
489         select SERIAL_CORE_CONSOLE
490         help
491           If you have enabled the serial port on the SA1100/SA1110 StrongARM
492           CPU you can make it the console by answering Y to this option.
493 
494           Even if you say Y here, the currently visible virtual console
495           (/dev/tty0) will still be used as the system console by default, but
496           you can alter that using a kernel command line option such as
497           "console=ttySA0". (Try "man bootparam" or see the documentation of
498           your boot loader (lilo or loadlin) about how to pass options to the
499           kernel at boot time.)
500 
501 config SERIAL_BFIN
502         tristate "Blackfin serial port support"
503         depends on BLACKFIN
504         select SERIAL_CORE
505         select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
506         help
507           Add support for the built-in UARTs on the Blackfin.
508 
509           To compile this driver as a module, choose M here: the
510           module is named bfin_uart.ko.
511 
512 config SERIAL_BFIN_CONSOLE
513         bool "Console on Blackfin serial port"
514         depends on SERIAL_BFIN=y
515         select SERIAL_CORE_CONSOLE
516 
517 choice
518         prompt "UART Mode"
519         depends on SERIAL_BFIN
520         default SERIAL_BFIN_DMA
521         help
522           This driver supports the built-in serial ports of the Blackfin family
523           of CPUs
524 
525 config SERIAL_BFIN_DMA
526         bool "DMA mode"
527         depends on !DMA_UNCACHED_NONE && KGDB_SERIAL_CONSOLE=n
528         help
529           This driver works under DMA mode. If this option is selected, the
530           blackfin simple dma driver is also enabled.
531 
532 config SERIAL_BFIN_PIO
533         bool "PIO mode"
534         help
535           This driver works under PIO mode.
536 
537 endchoice
538 
539 config SERIAL_BFIN_UART0
540         bool "Enable UART0"
541         depends on SERIAL_BFIN
542         help
543           Enable UART0
544 
545 config BFIN_UART0_CTSRTS
546         bool "Enable UART0 hardware flow control"
547         depends on SERIAL_BFIN_UART0
548         help
549           Enable hardware flow control in the driver.
550 
551 config SERIAL_BFIN_UART1
552         bool "Enable UART1"
553         depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
554         help
555           Enable UART1
556 
557 config BFIN_UART1_CTSRTS
558         bool "Enable UART1 hardware flow control"
559         depends on SERIAL_BFIN_UART1
560         help
561           Enable hardware flow control in the driver.
562 
563 config SERIAL_BFIN_UART2
564         bool "Enable UART2"
565         depends on SERIAL_BFIN && (BF54x || BF538 || BF539)
566         help
567           Enable UART2
568 
569 config BFIN_UART2_CTSRTS
570         bool "Enable UART2 hardware flow control"
571         depends on SERIAL_BFIN_UART2
572         help
573           Enable hardware flow control in the driver.
574 
575 config SERIAL_BFIN_UART3
576         bool "Enable UART3"
577         depends on SERIAL_BFIN && (BF54x)
578         help
579           Enable UART3
580 
581 config BFIN_UART3_CTSRTS
582         bool "Enable UART3 hardware flow control"
583         depends on SERIAL_BFIN_UART3
584         help
585           Enable hardware flow control in the driver.
586 
587 config SERIAL_IMX
588         tristate "IMX serial port support"
589         depends on HAS_DMA
590         depends on ARCH_MXC || COMPILE_TEST
591         select SERIAL_CORE
592         select RATIONAL
593         select SERIAL_MCTRL_GPIO if GPIOLIB
594         help
595           If you have a machine based on a Motorola IMX CPU you
596           can enable its onboard serial port by enabling this option.
597 
598 config SERIAL_IMX_CONSOLE
599         bool "Console on IMX serial port"
600         depends on SERIAL_IMX=y
601         select SERIAL_CORE_CONSOLE
602         select SERIAL_EARLYCON if OF
603         help
604           If you have enabled the serial port on the Freescale IMX
605           CPU you can make it the console by answering Y to this option.
606 
607           Even if you say Y here, the currently visible virtual console
608           (/dev/tty0) will still be used as the system console by default, but
609           you can alter that using a kernel command line option such as
610           "console=ttymxc0". (Try "man bootparam" or see the documentation of
611           your bootloader about how to pass options to the kernel at boot time.)
612 
613 config SERIAL_UARTLITE
614         tristate "Xilinx uartlite serial port support"
615         depends on HAS_IOMEM
616         select SERIAL_CORE
617         help
618           Say Y here if you want to use the Xilinx uartlite serial controller.
619 
620           To compile this driver as a module, choose M here: the
621           module will be called uartlite.
622 
623 config SERIAL_UARTLITE_CONSOLE
624         bool "Support for console on Xilinx uartlite serial port"
625         depends on SERIAL_UARTLITE=y
626         select SERIAL_CORE_CONSOLE
627         select SERIAL_EARLYCON
628         help
629           Say Y here if you wish to use a Xilinx uartlite as the system
630           console (the system console is the device which receives all kernel
631           messages and warnings and which allows logins in single user mode).
632 
633 config SERIAL_SUNCORE
634         bool
635         depends on SPARC
636         select SERIAL_CORE
637         select SERIAL_CORE_CONSOLE
638         default y
639 
640 config SERIAL_SUNZILOG
641         tristate "Sun Zilog8530 serial support"
642         depends on SPARC
643         help
644           This driver supports the Zilog8530 serial ports found on many Sparc
645           systems.  Say Y or M if you want to be able to these serial ports.
646 
647 config SERIAL_SUNZILOG_CONSOLE
648         bool "Console on Sun Zilog8530 serial port"
649         depends on SERIAL_SUNZILOG=y
650         help
651           If you would like to be able to use the Zilog8530 serial port
652           on your Sparc system as the console, you can do so by answering
653           Y to this option.
654 
655 config SERIAL_SUNSU
656         tristate "Sun SU serial support"
657         depends on SPARC && PCI
658         help
659           This driver supports the 8250 serial ports that run the keyboard and
660           mouse on (PCI) UltraSPARC systems.  Say Y or M if you want to be able
661           to these serial ports.
662 
663 config SERIAL_SUNSU_CONSOLE
664         bool "Console on Sun SU serial port"
665         depends on SERIAL_SUNSU=y
666         help
667           If you would like to be able to use the SU serial port
668           on your Sparc system as the console, you can do so by answering
669           Y to this option.
670 
671 config SERIAL_MUX
672         tristate "Serial MUX support"
673         depends on GSC
674         select SERIAL_CORE
675         default y
676         ---help---
677           Saying Y here will enable the hardware MUX serial driver for
678           the Nova, K class systems and D class with a 'remote control card'.
679           The hardware MUX is not 8250/16550 compatible therefore the
680           /dev/ttyB0 device is shared between the Serial MUX and the PDC
681           software console. The following steps need to be completed to use
682           the Serial MUX:
683 
684             1. create the device entry (mknod /dev/ttyB0 c 11 0)
685             2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
686             3. Add device ttyB0 to /etc/securetty (if you want to log on as
687                  root on this console.)
688             4. Change the kernel command console parameter to: console=ttyB0
689 
690 config SERIAL_MUX_CONSOLE
691         bool "Support for console on serial MUX"
692         depends on SERIAL_MUX=y
693         select SERIAL_CORE_CONSOLE
694         default y
695 
696 config PDC_CONSOLE
697         bool "PDC software console support"
698         depends on PARISC && !SERIAL_MUX && VT
699         default n
700         help
701           Saying Y here will enable the software based PDC console to be 
702           used as the system console.  This is useful for machines in 
703           which the hardware based console has not been written yet.  The
704           following steps must be completed to use the PDC console:
705 
706             1. create the device entry (mknod /dev/ttyB0 c 11 0)
707             2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
708             3. Add device ttyB0 to /etc/securetty (if you want to log on as
709                  root on this console.)
710             4. Change the kernel command console parameter to: console=ttyB0
711 
712 config SERIAL_SUNSAB
713         tristate "Sun Siemens SAB82532 serial support"
714         depends on SPARC && PCI
715         help
716           This driver supports the Siemens SAB82532 DUSCC serial ports on newer
717           (PCI) UltraSPARC systems.  Say Y or M if you want to be able to these
718           serial ports.
719 
720 config SERIAL_SUNSAB_CONSOLE
721         bool "Console on Sun Siemens SAB82532 serial port"
722         depends on SERIAL_SUNSAB=y
723         help
724           If you would like to be able to use the SAB82532 serial port
725           on your Sparc system as the console, you can do so by answering
726           Y to this option.
727 
728 config SERIAL_SUNHV
729         bool "Sun4v Hypervisor Console support"
730         depends on SPARC64
731         help
732           This driver supports the console device found on SUN4V Sparc
733           systems.  Say Y if you want to be able to use this device.
734 
735 config SERIAL_IP22_ZILOG
736         tristate "SGI Zilog8530 serial support"
737         depends on SGI_HAS_ZILOG
738         select SERIAL_CORE
739         help
740           This driver supports the Zilog8530 serial ports found on SGI
741           systems.  Say Y or M if you want to be able to these serial ports.
742 
743 config SERIAL_IP22_ZILOG_CONSOLE
744         bool "Console on SGI Zilog8530 serial port"
745         depends on SERIAL_IP22_ZILOG=y
746         select SERIAL_CORE_CONSOLE
747 
748 config SERIAL_SH_SCI
749         tristate "SuperH SCI(F) serial port support"
750         depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
751         select SERIAL_CORE
752         select SERIAL_MCTRL_GPIO if GPIOLIB
753 
754 config SERIAL_SH_SCI_NR_UARTS
755         int "Maximum number of SCI(F) serial ports"
756         depends on SERIAL_SH_SCI
757         default "2"
758 
759 config SERIAL_SH_SCI_CONSOLE
760         bool "Support for console on SuperH SCI(F)"
761         depends on SERIAL_SH_SCI=y
762         select SERIAL_CORE_CONSOLE
763 
764 config SERIAL_SH_SCI_EARLYCON
765         bool "Support for early console on SuperH SCI(F)"
766         depends on SERIAL_SH_SCI=y
767         select SERIAL_CORE_CONSOLE
768         select SERIAL_EARLYCON
769 
770 config SERIAL_SH_SCI_DMA
771         bool "DMA support"
772         depends on SERIAL_SH_SCI && DMA_ENGINE
773 
774 config SERIAL_PNX8XXX
775         bool "Enable PNX8XXX SoCs' UART Support"
776         depends on SOC_PNX833X
777         select SERIAL_CORE
778         help
779           If you have a MIPS-based Philips SoC such as PNX8330 and you want
780           to use serial ports, say Y.  Otherwise, say N.
781 
782 config SERIAL_PNX8XXX_CONSOLE
783         bool "Enable PNX8XX0 serial console"
784         depends on SERIAL_PNX8XXX
785         select SERIAL_CORE_CONSOLE
786         help
787           If you have a MIPS-based Philips SoC such as PNX8330 and you want
788           to use serial console, say Y. Otherwise, say N.
789 
790 config SERIAL_HS_LPC32XX
791         tristate "LPC32XX high speed serial port support"
792         depends on ARCH_LPC32XX && OF
793         select SERIAL_CORE
794         help
795           Support for the LPC32XX high speed serial ports (up to 900kbps).
796           Those are UARTs completely different from the Standard UARTs on the
797           LPC32XX SoC.
798           Choose M or Y here to build this driver.
799 
800 config SERIAL_HS_LPC32XX_CONSOLE
801         bool "Enable LPC32XX high speed UART serial console"
802         depends on SERIAL_HS_LPC32XX=y
803         select SERIAL_CORE_CONSOLE
804         help
805           If you would like to be able to use one of the high speed serial
806           ports on the LPC32XX as the console, you can do so by answering
807           Y to this option.
808 
809 config SERIAL_CORE
810         tristate
811 
812 config SERIAL_CORE_CONSOLE
813         bool
814 
815 config CONSOLE_POLL
816         bool
817 
818 config SERIAL_MCF
819         bool "Coldfire serial support"
820         depends on COLDFIRE
821         select SERIAL_CORE
822         help
823           This serial driver supports the Freescale Coldfire serial ports.
824 
825 config SERIAL_MCF_BAUDRATE
826         int "Default baudrate for Coldfire serial ports"
827         depends on SERIAL_MCF
828         default 19200
829         help
830           This setting lets you define what the default baudrate is for the
831           ColdFire serial ports. The usual default varies from board to board,
832           and this setting is a way of catering for that.
833 
834 config SERIAL_MCF_CONSOLE
835         bool "Coldfire serial console support"
836         depends on SERIAL_MCF
837         select SERIAL_CORE_CONSOLE
838         help
839           Enable a ColdFire internal serial port to be the system console.
840 
841 config SERIAL_PMACZILOG
842         tristate "Mac or PowerMac z85c30 ESCC support"
843         depends on (M68K && MAC) || PPC_PMAC
844         select SERIAL_CORE
845         help
846           This driver supports the Zilog z85C30 serial ports found on
847           (Power)Mac machines.
848           Say Y or M if you want to be able to these serial ports.
849 
850 config SERIAL_PMACZILOG_TTYS
851         bool "Use ttySn device nodes for Zilog z85c30"
852         depends on SERIAL_PMACZILOG
853         help
854           The pmac_zilog driver for the z85C30 chip on many powermacs
855           historically used the device numbers for /dev/ttySn.  The
856           8250 serial port driver also uses these numbers, which means
857           the two drivers being unable to coexist; you could not use
858           both z85C30 and 8250 type ports at the same time.
859 
860           If this option is not selected, the pmac_zilog driver will
861           use the device numbers allocated for /dev/ttyPZn.  This allows
862           the pmac_zilog and 8250 drivers to co-exist, but may cause
863           existing userspace setups to break.  Programs that need to
864           access the built-in serial ports on powermacs will need to
865           be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
866 
867           If you enable this option, any z85c30 ports in the system will
868           be registered as ttyS0 onwards as in the past, and you will be
869           unable to use the 8250 module for PCMCIA or other 16C550-style
870           UARTs.
871 
872           Say N unless you need the z85c30 ports on your (Power)Mac
873           to appear as /dev/ttySn.
874 
875 config SERIAL_PMACZILOG_CONSOLE
876         bool "Console on Mac or PowerMac z85c30 serial port"
877         depends on SERIAL_PMACZILOG=y
878         select SERIAL_CORE_CONSOLE
879         help
880           If you would like to be able to use the z85c30 serial port
881           on your (Power)Mac as the console, you can do so by answering
882           Y to this option.
883 
884 config SERIAL_CPM
885         tristate "CPM SCC/SMC serial port support"
886         depends on CPM2 || CPM1
887         select SERIAL_CORE
888         help
889           This driver supports the SCC and SMC serial ports on Motorola 
890           embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
891 
892 config SERIAL_CPM_CONSOLE
893         bool "Support for console on CPM SCC/SMC serial port"
894         depends on SERIAL_CPM=y
895         select SERIAL_CORE_CONSOLE
896         help
897           Say Y here if you wish to use a SCC or SMC CPM UART as the system
898           console (the system console is the device which receives all kernel
899           messages and warnings and which allows logins in single user mode).
900 
901           Even if you say Y here, the currently visible framebuffer console
902           (/dev/tty0) will still be used as the system console by default, but
903           you can alter that using a kernel command line option such as
904           "console=ttyCPM0". (Try "man bootparam" or see the documentation of
905           your boot loader (lilo or loadlin) about how to pass options to the
906           kernel at boot time.)
907 
908 config SERIAL_SGI_L1_CONSOLE
909         bool "SGI Altix L1 serial console support"
910         depends on IA64_GENERIC || IA64_SGI_SN2
911         select SERIAL_CORE
912         select SERIAL_CORE_CONSOLE
913         help
914                 If you have an SGI Altix and you would like to use the system
915                 controller serial port as your console (you want this!),
916                 say Y.  Otherwise, say N.
917 
918 config SERIAL_PIC32
919         tristate "Microchip PIC32 serial support"
920         depends on MACH_PIC32
921         select SERIAL_CORE
922         help
923           If you have a PIC32, this driver supports the serial ports.
924 
925           Say Y or M to use PIC32 serial ports, otherwise say N. Note that
926           to use a serial port as a console, this must be included in kernel and
927           not as a module.
928 
929 config SERIAL_PIC32_CONSOLE
930         bool "PIC32 serial console support"
931         depends on SERIAL_PIC32
932         select SERIAL_CORE_CONSOLE
933         help
934           If you have a PIC32, this driver supports the putting a console on one
935           of the serial ports.
936 
937           Say Y to use the PIC32 console, otherwise say N.
938 
939 config SERIAL_MPC52xx
940         tristate "Freescale MPC52xx/MPC512x family PSC serial support"
941         depends on PPC_MPC52xx || PPC_MPC512x
942         select SERIAL_CORE
943         help
944           This driver supports MPC52xx and MPC512x PSC serial ports. If you would
945           like to use them, you must answer Y or M to this option. Note that
946           for use as console, it must be included in kernel and not as a
947           module.
948 
949 config SERIAL_MPC52xx_CONSOLE
950         bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
951         depends on SERIAL_MPC52xx=y
952         select SERIAL_CORE_CONSOLE
953         help
954           Select this options if you'd like to use one of the PSC serial port
955           of the Freescale MPC52xx family as a console.
956 
957 config SERIAL_MPC52xx_CONSOLE_BAUD
958         int "Freescale MPC52xx/MPC512x family PSC serial port baud"
959         depends on SERIAL_MPC52xx_CONSOLE=y
960         default "9600"
961         help
962           Select the MPC52xx console baud rate.
963           This value is only used if the bootloader doesn't pass in the
964           console baudrate
965 
966 config SERIAL_ICOM
967         tristate "IBM Multiport Serial Adapter"
968         depends on PCI && PPC_PSERIES
969         select SERIAL_CORE
970         select FW_LOADER
971         help
972           This driver is for a family of multiport serial adapters
973           including 2 port RVX, 2 port internal modem, 4 port internal
974           modem and a split 1 port RVX and 1 port internal modem.
975 
976           This driver can also be built as a module.  If so, the module
977           will be called icom.
978 
979 config SERIAL_M32R_SIO
980         bool "M32R SIO I/F"
981         depends on M32R
982         default y
983         select SERIAL_CORE
984         help
985           Say Y here if you want to use the M32R serial controller.
986 
987 config SERIAL_M32R_SIO_CONSOLE
988         bool "use SIO console"
989         depends on SERIAL_M32R_SIO=y
990         select SERIAL_CORE_CONSOLE
991         help
992           Say Y here if you want to support a serial console.
993 
994           If you use an M3T-M32700UT or an OPSPUT platform,
995           please say also y for SERIAL_M32R_PLDSIO.
996 
997 config SERIAL_M32R_PLDSIO
998         bool "M32R SIO I/F on a PLD"
999         depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1000         default n
1001         help
1002           Say Y here if you want to use the M32R serial controller
1003           on a PLD (Programmable Logic Device).
1004 
1005           If you use an M3T-M32700UT or an OPSPUT platform,
1006           please say Y.
1007 
1008 config SERIAL_TXX9
1009         bool "TMPTX39XX/49XX SIO support"
1010         depends on HAS_TXX9_SERIAL
1011         select SERIAL_CORE
1012         default y
1013 
1014 config HAS_TXX9_SERIAL
1015         bool
1016 
1017 config SERIAL_TXX9_NR_UARTS
1018         int "Maximum number of TMPTX39XX/49XX SIO ports"
1019         depends on SERIAL_TXX9
1020         default "6"
1021 
1022 config SERIAL_TXX9_CONSOLE
1023         bool "TMPTX39XX/49XX SIO Console support"
1024         depends on SERIAL_TXX9=y
1025         select SERIAL_CORE_CONSOLE
1026 
1027 config SERIAL_TXX9_STDSERIAL
1028         bool "TX39XX/49XX SIO act as standard serial"
1029         depends on !SERIAL_8250 && SERIAL_TXX9
1030 
1031 config SERIAL_VR41XX
1032         tristate "NEC VR4100 series Serial Interface Unit support"
1033         depends on CPU_VR41XX
1034         select SERIAL_CORE
1035         help
1036           If you have a NEC VR4100 series processor and you want to use
1037           Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1038           (not include VR4111/VR4121 DSIU), say Y.  Otherwise, say N.
1039 
1040 config SERIAL_VR41XX_CONSOLE
1041         bool "Enable NEC VR4100 series Serial Interface Unit console"
1042         depends on SERIAL_VR41XX=y
1043         select SERIAL_CORE_CONSOLE
1044         help
1045           If you have a NEC VR4100 series processor and you want to use
1046           a console on a serial port, say Y.  Otherwise, say N.
1047 
1048 config SERIAL_JSM
1049         tristate "Digi International NEO and Classic PCI Support"
1050         depends on PCI
1051         select SERIAL_CORE
1052         help
1053           This is a driver for Digi International's Neo and Classic series
1054           of cards which provide multiple serial ports. You would need
1055           something like this to connect more than two modems to your Linux
1056           box, for instance in order to become a dial-in server. This driver
1057           supports PCI boards only.
1058 
1059           If you have a card like this, say Y here, otherwise say N.
1060 
1061           To compile this driver as a module, choose M here: the
1062           module will be called jsm.
1063 
1064 config SERIAL_SGI_IOC4
1065         tristate "SGI IOC4 controller serial support"
1066         depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1067         select SERIAL_CORE
1068         help
1069                 If you have an SGI Altix with an IOC4 based Base IO card
1070                 and wish to use the serial ports on this card, say Y.
1071                 Otherwise, say N.
1072 
1073 config SERIAL_SGI_IOC3
1074         tristate "SGI Altix IOC3 serial support"
1075         depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1076         select SERIAL_CORE
1077         help
1078           If you have an SGI Altix with an IOC3 serial card,
1079           say Y or M.  Otherwise, say N.
1080 
1081 config SERIAL_MSM
1082         tristate "MSM on-chip serial port support"
1083         depends on ARCH_QCOM
1084         select SERIAL_CORE
1085 
1086 config SERIAL_MSM_CONSOLE
1087         bool "MSM serial console support"
1088         depends on SERIAL_MSM=y
1089         select SERIAL_CORE_CONSOLE
1090         select SERIAL_EARLYCON
1091 
1092 config SERIAL_VT8500
1093         bool "VIA VT8500 on-chip serial port support"
1094         depends on ARCH_VT8500
1095         select SERIAL_CORE
1096 
1097 config SERIAL_VT8500_CONSOLE
1098         bool "VIA VT8500 serial console support"
1099         depends on SERIAL_VT8500=y
1100         select SERIAL_CORE_CONSOLE
1101 
1102 config SERIAL_ETRAXFS
1103         bool "ETRAX FS serial port support"
1104         depends on ETRAX_ARCH_V32 && OF
1105         select SERIAL_CORE
1106         select SERIAL_MCTRL_GPIO if GPIOLIB
1107 
1108 config SERIAL_ETRAXFS_CONSOLE
1109         bool "ETRAX FS serial console support"
1110         depends on SERIAL_ETRAXFS
1111         select SERIAL_CORE_CONSOLE
1112 
1113 config SERIAL_NETX
1114         tristate "NetX serial port support"
1115         depends on ARCH_NETX
1116         select SERIAL_CORE
1117         help
1118           If you have a machine based on a Hilscher NetX SoC you
1119           can enable its onboard serial port by enabling this option.
1120 
1121           To compile this driver as a module, choose M here: the
1122           module will be called netx-serial.
1123 
1124 config SERIAL_NETX_CONSOLE
1125         bool "Console on NetX serial port"
1126         depends on SERIAL_NETX=y
1127         select SERIAL_CORE_CONSOLE
1128         help
1129           If you have enabled the serial port on the Hilscher NetX SoC
1130           you can make it the console by answering Y to this option.
1131 
1132 config SERIAL_OMAP
1133         tristate "OMAP serial port support"
1134         depends on ARCH_OMAP2PLUS
1135         select SERIAL_CORE
1136         help
1137           If you have a machine based on an Texas Instruments OMAP CPU you
1138           can enable its onboard serial ports by enabling this option.
1139 
1140           By enabling this option you take advantage of dma feature available
1141           with the omap-serial driver. DMA support can be enabled from platform
1142           data.
1143 
1144 config SERIAL_OMAP_CONSOLE
1145         bool "Console on OMAP serial port"
1146         depends on SERIAL_OMAP=y
1147         select SERIAL_CORE_CONSOLE
1148         help
1149           Select this option if you would like to use omap serial port as
1150           console.
1151 
1152           Even if you say Y here, the currently visible virtual console
1153           (/dev/tty0) will still be used as the system console by default, but
1154           you can alter that using a kernel command line option such as
1155           "console=ttyOx". (Try "man bootparam" or see the documentation of
1156           your boot loader about how to pass options to the kernel at
1157           boot time.)
1158 
1159 config SERIAL_LANTIQ
1160         bool "Lantiq serial driver"
1161         depends on LANTIQ
1162         select SERIAL_CORE
1163         select SERIAL_CORE_CONSOLE
1164         help
1165           Support for console and UART on Lantiq SoCs.
1166 
1167 config SERIAL_QE
1168         tristate "Freescale QUICC Engine serial port support"
1169         depends on QUICC_ENGINE
1170         select SERIAL_CORE
1171         select FW_LOADER
1172         default n
1173         help
1174           This driver supports the QE serial ports on Freescale embedded
1175           PowerPC that contain a QUICC Engine.
1176 
1177 config SERIAL_SCCNXP
1178         tristate "SCCNXP serial port support"
1179         select SERIAL_CORE
1180         help
1181           This selects support for an advanced UART from NXP (Philips).
1182           Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1183           SC28L202, SCC68681 and SCC68692.
1184 
1185 config SERIAL_SCCNXP_CONSOLE
1186         bool "Console on SCCNXP serial port"
1187         depends on SERIAL_SCCNXP=y
1188         select SERIAL_CORE_CONSOLE
1189         help
1190           Support for console on SCCNXP serial ports.
1191 
1192 config SERIAL_SC16IS7XX_CORE
1193         tristate
1194 
1195 config SERIAL_SC16IS7XX
1196         tristate "SC16IS7xx serial support"
1197         select SERIAL_CORE
1198         depends on (SPI_MASTER && !I2C) || I2C
1199         help
1200           This selects support for SC16IS7xx serial ports.
1201           Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1202           SC16IS760 and SC16IS762. Select supported buses using options below.
1203 
1204 config SERIAL_SC16IS7XX_I2C
1205         bool "SC16IS7xx for I2C interface"
1206         depends on SERIAL_SC16IS7XX
1207         depends on I2C
1208         select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1209         select REGMAP_I2C if I2C
1210         default y
1211         help
1212           Enable SC16IS7xx driver on I2C bus,
1213           If required say y, and say n to i2c if not required,
1214           Enabled by default to support oldconfig.
1215           You must select at least one bus for the driver to be built.
1216 
1217 config SERIAL_SC16IS7XX_SPI
1218         bool "SC16IS7xx for spi interface"
1219         depends on SERIAL_SC16IS7XX
1220         depends on SPI_MASTER
1221         select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1222         select REGMAP_SPI if SPI_MASTER
1223         help
1224           Enable SC16IS7xx driver on SPI bus,
1225           If required say y, and say n to spi if not required,
1226           This is additional support to exsisting driver.
1227           You must select at least one bus for the driver to be built.
1228 
1229 config SERIAL_BFIN_SPORT
1230         tristate "Blackfin SPORT emulate UART"
1231         depends on BLACKFIN
1232         select SERIAL_CORE
1233         help
1234           Enable SPORT emulate UART on Blackfin series.
1235 
1236           To compile this driver as a module, choose M here: the
1237           module will be called bfin_sport_uart.
1238 
1239 config SERIAL_BFIN_SPORT_CONSOLE
1240         bool "Console on Blackfin sport emulated uart"
1241         depends on SERIAL_BFIN_SPORT=y
1242         select SERIAL_CORE_CONSOLE
1243 
1244 config SERIAL_BFIN_SPORT0_UART
1245         bool "Enable UART over SPORT0"
1246         depends on SERIAL_BFIN_SPORT && !(BF542 || BF544)
1247         help
1248           Enable UART over SPORT0
1249 
1250 config SERIAL_BFIN_SPORT0_UART_CTSRTS
1251         bool "Enable UART over SPORT0 hardware flow control"
1252         depends on SERIAL_BFIN_SPORT0_UART
1253         help
1254           Enable hardware flow control in the driver.
1255 
1256 config SERIAL_BFIN_SPORT1_UART
1257         bool "Enable UART over SPORT1"
1258         depends on SERIAL_BFIN_SPORT
1259         help
1260           Enable UART over SPORT1
1261 
1262 config SERIAL_BFIN_SPORT1_UART_CTSRTS
1263         bool "Enable UART over SPORT1 hardware flow control"
1264         depends on SERIAL_BFIN_SPORT1_UART
1265         help
1266           Enable hardware flow control in the driver.
1267 
1268 config SERIAL_BFIN_SPORT2_UART
1269         bool "Enable UART over SPORT2"
1270         depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1271         help
1272           Enable UART over SPORT2
1273 
1274 config SERIAL_BFIN_SPORT2_UART_CTSRTS
1275         bool "Enable UART over SPORT2 hardware flow control"
1276         depends on SERIAL_BFIN_SPORT2_UART
1277         help
1278           Enable hardware flow control in the driver.
1279 
1280 config SERIAL_BFIN_SPORT3_UART
1281         bool "Enable UART over SPORT3"
1282         depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1283         help
1284           Enable UART over SPORT3
1285 
1286 config SERIAL_BFIN_SPORT3_UART_CTSRTS
1287         bool "Enable UART over SPORT3 hardware flow control"
1288         depends on SERIAL_BFIN_SPORT3_UART
1289         help
1290           Enable hardware flow control in the driver.
1291 
1292 config SERIAL_TIMBERDALE
1293         tristate "Support for timberdale UART"
1294         select SERIAL_CORE
1295         depends on X86_32 || COMPILE_TEST
1296         ---help---
1297         Add support for UART controller on timberdale.
1298 
1299 config SERIAL_BCM63XX
1300         tristate "Broadcom BCM63xx/BCM33xx UART support"
1301         select SERIAL_CORE
1302         depends on MIPS || ARM || COMPILE_TEST
1303         help
1304           This enables the driver for the onchip UART core found on
1305           the following chipsets:
1306 
1307             BCM33xx (cable modem)
1308             BCM63xx/BCM63xxx (DSL)
1309             BCM68xx (PON)
1310             BCM7xxx (STB) - DOCSIS console
1311 
1312 config SERIAL_BCM63XX_CONSOLE
1313         bool "Console on BCM63xx serial port"
1314         depends on SERIAL_BCM63XX=y
1315         select SERIAL_CORE_CONSOLE
1316         select SERIAL_EARLYCON
1317         help
1318           If you have enabled the serial port on the BCM63xx CPU
1319           you can make it the console by answering Y to this option.
1320 
1321 config SERIAL_GRLIB_GAISLER_APBUART
1322         tristate "GRLIB APBUART serial support"
1323         depends on OF && SPARC
1324         select SERIAL_CORE
1325         ---help---
1326         Add support for the GRLIB APBUART serial port.
1327 
1328 config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1329         bool "Console on GRLIB APBUART serial port"
1330         depends on SERIAL_GRLIB_GAISLER_APBUART=y
1331         select SERIAL_CORE_CONSOLE
1332         help
1333         Support for running a console on the GRLIB APBUART
1334 
1335 config SERIAL_ALTERA_JTAGUART
1336         tristate "Altera JTAG UART support"
1337         select SERIAL_CORE
1338         help
1339           This driver supports the Altera JTAG UART port.
1340 
1341 config SERIAL_ALTERA_JTAGUART_CONSOLE
1342         bool "Altera JTAG UART console support"
1343         depends on SERIAL_ALTERA_JTAGUART=y
1344         select SERIAL_CORE_CONSOLE
1345         help
1346           Enable a Altera JTAG UART port to be the system console.
1347 
1348 config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1349         bool "Bypass output when no connection"
1350         depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1351         select SERIAL_CORE_CONSOLE
1352         help
1353           Bypass console output and keep going even if there is no
1354           JTAG terminal connection with the host.
1355 
1356 config SERIAL_ALTERA_UART
1357         tristate "Altera UART support"
1358         select SERIAL_CORE
1359         help
1360           This driver supports the Altera softcore UART port.
1361 
1362 config SERIAL_ALTERA_UART_MAXPORTS
1363         int "Maximum number of Altera UART ports"
1364         depends on SERIAL_ALTERA_UART
1365         default 4
1366         help
1367           This setting lets you define the maximum number of the Altera
1368           UART ports. The usual default varies from board to board, and
1369           this setting is a way of catering for that.
1370 
1371 config SERIAL_ALTERA_UART_BAUDRATE
1372         int "Default baudrate for Altera UART ports"
1373         depends on SERIAL_ALTERA_UART
1374         default 115200
1375         help
1376           This setting lets you define what the default baudrate is for the
1377           Altera UART ports. The usual default varies from board to board,
1378           and this setting is a way of catering for that.
1379 
1380 config SERIAL_ALTERA_UART_CONSOLE
1381         bool "Altera UART console support"
1382         depends on SERIAL_ALTERA_UART=y
1383         select SERIAL_CORE_CONSOLE
1384         help
1385           Enable a Altera UART port to be the system console.
1386 
1387 config SERIAL_IFX6X60
1388         tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1389         depends on GPIOLIB || COMPILE_TEST
1390         depends on SPI && HAS_DMA
1391         help
1392           Support for the IFX6x60 modem devices on Intel MID platforms.
1393 
1394 config SERIAL_PCH_UART
1395         tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1396         depends on PCI && (X86_32 || MIPS ||  COMPILE_TEST)
1397         select SERIAL_CORE
1398         help
1399           This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1400           which is an IOH(Input/Output Hub) for x86 embedded processor.
1401           Enabling PCH_DMA, this PCH UART works as DMA mode.
1402 
1403           This driver also can be used for LAPIS Semiconductor IOH(Input/
1404           Output Hub), ML7213, ML7223 and ML7831.
1405           ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1406           for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1407           ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1408           ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1409 
1410 config SERIAL_PCH_UART_CONSOLE
1411         bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1412         depends on SERIAL_PCH_UART=y
1413         select SERIAL_CORE_CONSOLE
1414         help
1415           Say Y here if you wish to use the PCH UART as the system console
1416           (the system  console is the device which receives all kernel messages and
1417           warnings and which allows logins in single user mode).
1418 
1419 config SERIAL_MXS_AUART
1420         tristate "MXS AUART support"
1421         depends on HAS_DMA
1422         depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1423         select SERIAL_CORE
1424         select SERIAL_MCTRL_GPIO if GPIOLIB
1425         help
1426           This driver supports the MXS and Alphascale ASM9260 Application
1427           UART (AUART) port.
1428 
1429 config SERIAL_MXS_AUART_CONSOLE
1430         bool "MXS AUART console support"
1431         depends on SERIAL_MXS_AUART=y
1432         select SERIAL_CORE_CONSOLE
1433         help
1434           Enable a MXS AUART port to be the system console.
1435 
1436 config SERIAL_XILINX_PS_UART
1437         tristate "Cadence (Xilinx Zynq) UART support"
1438         depends on OF
1439         select SERIAL_CORE
1440         help
1441           This driver supports the Cadence UART. It is found e.g. in Xilinx
1442           Zynq.
1443 
1444 config SERIAL_XILINX_PS_UART_CONSOLE
1445         bool "Cadence UART console support"
1446         depends on SERIAL_XILINX_PS_UART=y
1447         select SERIAL_CORE_CONSOLE
1448         select SERIAL_EARLYCON
1449         help
1450           Enable a Cadence UART port to be the system console.
1451 
1452 config SERIAL_AR933X
1453         tristate "AR933X serial port support"
1454         depends on HAVE_CLK && SOC_AR933X
1455         select SERIAL_CORE
1456         help
1457           If you have an Atheros AR933X SOC based board and want to use the
1458           built-in UART of the SoC, say Y to this option.
1459 
1460           To compile this driver as a module, choose M here: the
1461           module will be called ar933x_uart.
1462 
1463 config SERIAL_AR933X_CONSOLE
1464         bool "Console on AR933X serial port"
1465         depends on SERIAL_AR933X=y
1466         select SERIAL_CORE_CONSOLE
1467         help
1468           Enable a built-in UART port of the AR933X to be the system console.
1469 
1470 config SERIAL_AR933X_NR_UARTS
1471         int "Maximum number of AR933X serial ports"
1472         depends on SERIAL_AR933X
1473         default "2"
1474         help
1475           Set this to the number of serial ports you want the driver
1476           to support.
1477 
1478 config SERIAL_EFM32_UART
1479         tristate "EFM32 UART/USART port"
1480         depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1481         select SERIAL_CORE
1482         help
1483           This driver support the USART and UART ports on
1484           Energy Micro's efm32 SoCs.
1485 
1486 config SERIAL_MPS2_UART_CONSOLE
1487         bool "MPS2 UART console support"
1488         depends on SERIAL_MPS2_UART
1489         select SERIAL_CORE_CONSOLE
1490         select SERIAL_EARLYCON
1491 
1492 config SERIAL_MPS2_UART
1493         bool "MPS2 UART port"
1494         depends on ARCH_MPS2 || COMPILE_TEST
1495         select SERIAL_CORE
1496         help
1497           This driver support the UART ports on ARM MPS2.
1498 
1499 config SERIAL_EFM32_UART_CONSOLE
1500         bool "EFM32 UART/USART console support"
1501         depends on SERIAL_EFM32_UART=y
1502         select SERIAL_CORE_CONSOLE
1503 
1504 config SERIAL_TILEGX
1505         tristate "TILE-Gx on-chip serial port support"
1506         depends on TILEGX
1507         select TILE_GXIO_UART
1508         select SERIAL_CORE
1509         ---help---
1510           This device provides access to the on-chip UARTs on the TILE-Gx
1511           processor.
1512 
1513 config SERIAL_ARC
1514         tristate "ARC UART driver support"
1515         select SERIAL_CORE
1516         help
1517           Driver for on-chip UART for ARC(Synopsys) for the legacy
1518           FPGA Boards (ML50x/ARCAngel4)
1519 
1520 config SERIAL_ARC_CONSOLE
1521         bool "Console on ARC UART"
1522         depends on SERIAL_ARC=y
1523         select SERIAL_CORE_CONSOLE
1524         select SERIAL_EARLYCON
1525         help
1526           Enable system Console on ARC UART
1527 
1528 config SERIAL_ARC_NR_PORTS
1529         int "Number of ARC UART ports"
1530         depends on SERIAL_ARC
1531         range 1 3
1532         default "1"
1533         help
1534           Set this to the number of serial ports you want the driver
1535           to support.
1536 
1537 config SERIAL_RP2
1538         tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1539         depends on PCI
1540         select SERIAL_CORE
1541         help
1542           This driver supports the Comtrol RocketPort EXPRESS and
1543           RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1544           These adapters use a "RocketPort 2" ASIC that is not compatible
1545           with the original RocketPort driver (CONFIG_ROCKETPORT).
1546 
1547           To compile this driver as a module, choose M here: the
1548           module will be called rp2.
1549 
1550           If you want to compile this driver into the kernel, say Y here.  If
1551           you don't have a suitable RocketPort card installed, say N.
1552 
1553 config SERIAL_RP2_NR_UARTS
1554         int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1555         depends on SERIAL_RP2
1556         default "32"
1557         help
1558           If multiple cards are present, the default limit of 32 ports may
1559           need to be increased.
1560 
1561 config SERIAL_FSL_LPUART
1562         tristate "Freescale lpuart serial port support"
1563         depends on HAS_DMA
1564         select SERIAL_CORE
1565         help
1566           Support for the on-chip lpuart on some Freescale SOCs.
1567 
1568 config SERIAL_FSL_LPUART_CONSOLE
1569         bool "Console on Freescale lpuart serial port"
1570         depends on SERIAL_FSL_LPUART=y
1571         select SERIAL_CORE_CONSOLE
1572         select SERIAL_EARLYCON
1573         help
1574           If you have enabled the lpuart serial port on the Freescale SoCs,
1575           you can make it the console by answering Y to this option.
1576 
1577 config SERIAL_CONEXANT_DIGICOLOR
1578         tristate "Conexant Digicolor CX92xxx USART serial port support"
1579         depends on OF
1580         select SERIAL_CORE
1581         help
1582           Support for the on-chip USART on Conexant Digicolor SoCs.
1583 
1584 config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1585         bool "Console on Conexant Digicolor serial port"
1586         depends on SERIAL_CONEXANT_DIGICOLOR=y
1587         select SERIAL_CORE_CONSOLE
1588         help
1589           If you have enabled the USART serial port on Conexant Digicolor
1590           SoCs, you can make it the console by answering Y to this option.
1591 
1592 config SERIAL_ST_ASC
1593         tristate "ST ASC serial port support"
1594         select SERIAL_CORE
1595         depends on ARM || COMPILE_TEST
1596         help
1597           This driver is for the on-chip Asychronous Serial Controller on
1598           STMicroelectronics STi SoCs.
1599           ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1600           It support all industry standard baud rates.
1601 
1602           If unsure, say N.
1603 
1604 config SERIAL_ST_ASC_CONSOLE
1605         bool "Support for console on ST ASC"
1606         depends on SERIAL_ST_ASC=y
1607         select SERIAL_CORE_CONSOLE
1608 
1609 config SERIAL_MEN_Z135
1610         tristate "MEN 16z135 Support"
1611         select SERIAL_CORE
1612         depends on MCB
1613         help
1614           Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1615           on a MCB carrier.
1616 
1617           This driver can also be build as a module. If so, the module will be called
1618           men_z135_uart.ko
1619 
1620 config SERIAL_SPRD
1621         tristate "Support for Spreadtrum serial"
1622         depends on ARCH_SPRD
1623         select SERIAL_CORE
1624         help
1625           This enables the driver for the Spreadtrum's serial.
1626 
1627 config SERIAL_SPRD_CONSOLE
1628         bool "Spreadtrum UART console support"
1629         depends on SERIAL_SPRD=y
1630         select SERIAL_CORE_CONSOLE
1631         select SERIAL_EARLYCON
1632         help
1633           Support for early debug console using Spreadtrum's serial. This enables
1634           the console before standard serial driver is probed. This is enabled
1635           with "earlycon" on the kernel command line. The console is
1636           enabled when early_param is processed.
1637 
1638 config SERIAL_STM32
1639         tristate "STMicroelectronics STM32 serial port support"
1640         select SERIAL_CORE
1641         depends on HAS_DMA
1642         depends on ARCH_STM32 || COMPILE_TEST
1643         help
1644           This driver is for the on-chip Serial Controller on
1645           STMicroelectronics STM32 MCUs.
1646           USART supports Rx & Tx functionality.
1647           It support all industry standard baud rates.
1648 
1649           If unsure, say N.
1650 
1651 config SERIAL_STM32_CONSOLE
1652         bool "Support for console on STM32"
1653         depends on SERIAL_STM32=y
1654         select SERIAL_CORE_CONSOLE
1655 
1656 config SERIAL_MVEBU_UART
1657         bool "Marvell EBU serial port support"
1658         depends on ARCH_MVEBU || COMPILE_TEST
1659         select SERIAL_CORE
1660         help
1661           This driver is for Marvell EBU SoC's UART. If you have a machine
1662           based on the Armada-3700 SoC and wish to use the on-board serial
1663           port,
1664           say 'Y' here.
1665           Otherwise, say 'N'.
1666 
1667 config SERIAL_MVEBU_CONSOLE
1668         bool "Console on Marvell EBU serial port"
1669         depends on SERIAL_MVEBU_UART
1670         select SERIAL_CORE_CONSOLE
1671         select SERIAL_EARLYCON
1672         default y
1673         help
1674           Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1675           (the system console is the device which receives all kernel messages
1676           and warnings and which allows logins in single user mode)
1677           Otherwise, say 'N'.
1678 
1679 endmenu
1680 
1681 config SERIAL_MCTRL_GPIO
1682         tristate
1683 
1684 endif # TTY

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