tjh.dev
Linux kernel mirror (for testing)
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linux
1#
2# Serial device configuration
3#
4
5if TTY
6
7menu "Serial drivers"
8 depends on HAS_IOMEM
9
10config 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
17source "drivers/tty/serial/8250/Kconfig"
18
19comment "Non-8250 serial port support"
20
21config 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
32config 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
48config 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
59config 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
76config 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
88config SERIAL_EARLYCON_RISCV_SBI
89 bool "Early console using RISC-V SBI"
90 depends on RISCV
91 select SERIAL_CORE
92 select SERIAL_CORE_CONSOLE
93 select SERIAL_EARLYCON
94 help
95 Support for early debug console using RISC-V SBI. This enables
96 the console before standard serial driver is probed. This is enabled
97 with "earlycon=sbi" on the kernel command line. The console is
98 enabled when early_param is processed.
99
100config SERIAL_SB1250_DUART
101 tristate "BCM1xxx on-chip DUART serial support"
102 depends on SIBYTE_SB1xxx_SOC=y
103 select SERIAL_CORE
104 default y
105 ---help---
106 Support for the asynchronous serial interface (DUART) included in
107 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
108 the letter D in DUART stands for "dual", which is how the device
109 is implemented. Depending on the SOC configuration there may be
110 one or more DUARTs available of which all are handled.
111
112 If unsure, say Y. To compile this driver as a module, choose M here:
113 the module will be called sb1250-duart.
114
115config SERIAL_SB1250_DUART_CONSOLE
116 bool "Support for console on a BCM1xxx DUART serial port"
117 depends on SERIAL_SB1250_DUART=y
118 select SERIAL_CORE_CONSOLE
119 default y
120 ---help---
121 If you say Y here, it will be possible to use a serial port as the
122 system console (the system console is the device which receives all
123 kernel messages and warnings and which allows logins in single user
124 mode).
125
126 If unsure, say Y.
127
128config SERIAL_ATMEL
129 bool "AT91 on-chip serial port support"
130 depends on ARCH_AT91 || COMPILE_TEST
131 select SERIAL_CORE
132 select SERIAL_MCTRL_GPIO if GPIOLIB
133 select MFD_AT91_USART
134 help
135 This enables the driver for the on-chip UARTs of the Atmel
136 AT91 processors.
137
138config SERIAL_ATMEL_CONSOLE
139 bool "Support for console on AT91 serial port"
140 depends on SERIAL_ATMEL=y
141 select SERIAL_CORE_CONSOLE
142 help
143 Say Y here if you wish to use an on-chip UART on a Atmel
144 AT91 processor as the system console (the system
145 console is the device which receives all kernel messages and
146 warnings and which allows logins in single user mode).
147
148config SERIAL_ATMEL_PDC
149 bool "Support DMA transfers on AT91 serial port"
150 depends on SERIAL_ATMEL
151 default y
152 help
153 Say Y here if you wish to use the PDC to do DMA transfers to
154 and from the Atmel AT91 serial port. In order to
155 actually use DMA transfers, make sure that the use_dma_tx
156 and use_dma_rx members in the atmel_uart_data struct is set
157 appropriately for each port.
158
159 Note that break and error handling currently doesn't work
160 properly when DMA is enabled. Make sure that ports where
161 this matters don't use DMA.
162
163config SERIAL_ATMEL_TTYAT
164 bool "Install as device ttyATn instead of ttySn"
165 depends on SERIAL_ATMEL=y
166 help
167 Say Y here if you wish to have the internal AT91 UARTs
168 appear as /dev/ttyATn (major 204, minor starting at 154)
169 instead of the normal /dev/ttySn (major 4, minor starting at
170 64). This is necessary if you also want other UARTs, such as
171 external 8250/16C550 compatible UARTs.
172 The ttySn nodes are legally reserved for the 8250 serial driver
173 but are often misused by other serial drivers.
174
175 To use this, you should create suitable ttyATn device nodes in
176 /dev/, and pass "console=ttyATn" to the kernel.
177
178 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
179
180config SERIAL_KGDB_NMI
181 bool "Serial console over KGDB NMI debugger port"
182 depends on KGDB_SERIAL_CONSOLE
183 help
184 This special driver allows you to temporary use NMI debugger port
185 as a normal console (assuming that the port is attached to KGDB).
186
187 Unlike KDB's disable_nmi command, with this driver you are always
188 able to go back to the debugger using KGDB escape sequence ($3#33).
189 This is because this console driver processes the input in NMI
190 context, and thus is able to intercept the magic sequence.
191
192 Note that since the console interprets input and uses polling
193 communication methods, for things like PPP you still must fully
194 detach debugger port from the KGDB NMI (i.e. disable_nmi), and
195 use raw console.
196
197 If unsure, say N.
198
199config SERIAL_KS8695
200 bool "Micrel KS8695 (Centaur) serial port support"
201 depends on ARCH_KS8695
202 select SERIAL_CORE
203 help
204 This selects the Micrel Centaur KS8695 UART. Say Y here.
205
206config SERIAL_KS8695_CONSOLE
207 bool "Support for console on KS8695 (Centaur) serial port"
208 depends on SERIAL_KS8695=y
209 select SERIAL_CORE_CONSOLE
210 help
211 Say Y here if you wish to use a KS8695 (Centaur) UART as the
212 system console (the system console is the device which
213 receives all kernel messages and warnings and which allows
214 logins in single user mode).
215
216config SERIAL_MESON
217 tristate "Meson serial port support"
218 depends on ARCH_MESON
219 select SERIAL_CORE
220 help
221 This enables the driver for the on-chip UARTs of the Amlogic
222 MesonX processors.
223
224config SERIAL_MESON_CONSOLE
225 bool "Support for console on meson"
226 depends on SERIAL_MESON=y
227 select SERIAL_CORE_CONSOLE
228 select SERIAL_EARLYCON
229 help
230 Say Y here if you wish to use a Amlogic MesonX UART as the
231 system console (the system console is the device which
232 receives all kernel messages and warnings and which allows
233 logins in single user mode) as /dev/ttyAMLx.
234
235config SERIAL_CLPS711X
236 tristate "CLPS711X serial port support"
237 depends on ARCH_CLPS711X || COMPILE_TEST
238 select SERIAL_CORE
239 select SERIAL_MCTRL_GPIO if GPIOLIB
240 help
241 This enables the driver for the on-chip UARTs of the Cirrus
242 Logic EP711x/EP721x/EP731x processors.
243
244config SERIAL_CLPS711X_CONSOLE
245 bool "Support for console on CLPS711X serial port"
246 depends on SERIAL_CLPS711X=y
247 select SERIAL_CORE_CONSOLE
248 help
249 Even if you say Y here, the currently visible virtual console
250 (/dev/tty0) will still be used as the system console by default, but
251 you can alter that using a kernel command line option such as
252 "console=ttyCL1".
253
254config SERIAL_SAMSUNG
255 tristate "Samsung SoC serial support"
256 depends on PLAT_SAMSUNG || ARCH_EXYNOS
257 select SERIAL_CORE
258 help
259 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
260 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
261 provide all of these ports, depending on how the serial port
262 pins are configured.
263
264config SERIAL_SAMSUNG_UARTS_4
265 bool
266 depends on SERIAL_SAMSUNG
267 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
268 help
269 Internal node for the common case of 4 Samsung compatible UARTs
270
271config SERIAL_SAMSUNG_UARTS
272 int
273 depends on SERIAL_SAMSUNG
274 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
275 default 3
276 help
277 Select the number of available UART ports for the Samsung S3C
278 serial driver
279
280config SERIAL_SAMSUNG_DEBUG
281 bool "Samsung SoC serial debug"
282 depends on SERIAL_SAMSUNG && DEBUG_LL
283 help
284 Add support for debugging the serial driver. Since this is
285 generally being used as a console, we use our own output
286 routines that go via the low-level debug printascii()
287 function.
288
289config SERIAL_SAMSUNG_CONSOLE
290 bool "Support for console on Samsung SoC serial port"
291 depends on SERIAL_SAMSUNG=y
292 select SERIAL_CORE_CONSOLE
293 select SERIAL_EARLYCON
294 help
295 Allow selection of the S3C24XX on-board serial ports for use as
296 an virtual console.
297
298 Even if you say Y here, the currently visible virtual console
299 (/dev/tty0) will still be used as the system console by default, but
300 you can alter that using a kernel command line option such as
301 "console=ttySACx". (Try "man bootparam" or see the documentation of
302 your boot loader about how to pass options to the kernel at
303 boot time.)
304
305config SERIAL_SIRFSOC
306 tristate "SiRF SoC Platform Serial port support"
307 depends on ARCH_SIRF
308 select SERIAL_CORE
309 help
310 Support for the on-chip UART on the CSR SiRFprimaII series,
311 providing /dev/ttySiRF0, 1 and 2 (note, some machines may not
312 provide all of these ports, depending on how the serial port
313 pins are configured).
314
315config SERIAL_SIRFSOC_CONSOLE
316 bool "Support for console on SiRF SoC serial port"
317 depends on SERIAL_SIRFSOC=y
318 select SERIAL_CORE_CONSOLE
319 help
320 Even if you say Y here, the currently visible virtual console
321 (/dev/tty0) will still be used as the system console by default, but
322 you can alter that using a kernel command line option such as
323 "console=ttySiRFx". (Try "man bootparam" or see the documentation of
324 your boot loader about how to pass options to the kernel at
325 boot time.)
326
327config SERIAL_TEGRA
328 tristate "NVIDIA Tegra20/30 SoC serial controller"
329 depends on ARCH_TEGRA && TEGRA20_APB_DMA
330 select SERIAL_CORE
331 help
332 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
333 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not
334 provide all of these ports, depending on how the serial port
335 are enabled). This driver uses the APB DMA to achieve higher baudrate
336 and better performance.
337
338config SERIAL_TEGRA_TCU
339 tristate "NVIDIA Tegra Combined UART"
340 depends on ARCH_TEGRA && TEGRA_HSP_MBOX
341 select SERIAL_CORE
342 help
343 Support for the mailbox-based TCU (Tegra Combined UART) serial port.
344 TCU is a virtual serial port that allows multiplexing multiple data
345 streams into a single hardware serial port.
346
347config SERIAL_TEGRA_TCU_CONSOLE
348 bool "Support for console on a Tegra TCU serial port"
349 depends on SERIAL_TEGRA_TCU=y
350 select SERIAL_CORE_CONSOLE
351 default y
352 ---help---
353 If you say Y here, it will be possible to use a the Tegra TCU as the
354 system console (the system console is the device which receives all
355 kernel messages and warnings and which allows logins in single user
356 mode).
357
358 If unsure, say Y.
359
360config SERIAL_MAX3100
361 tristate "MAX3100 support"
362 depends on SPI
363 select SERIAL_CORE
364 help
365 MAX3100 chip support
366
367config SERIAL_MAX310X
368 tristate "MAX310X support"
369 depends on SPI_MASTER
370 select SERIAL_CORE
371 select REGMAP_SPI if SPI_MASTER
372 default n
373 help
374 This selects support for an advanced UART from Maxim (Dallas).
375 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830.
376 Each IC contains 128 words each of receive and transmit FIFO
377 that can be controlled through I2C or high-speed SPI.
378
379 Say Y here if you want to support this ICs.
380
381config SERIAL_DZ
382 bool "DECstation DZ serial driver"
383 depends on MACH_DECSTATION && 32BIT
384 select SERIAL_CORE
385 default y
386 ---help---
387 DZ11-family serial controllers for DECstations and VAXstations,
388 including the DC7085, M7814, and M7819.
389
390config SERIAL_DZ_CONSOLE
391 bool "Support console on DECstation DZ serial driver"
392 depends on SERIAL_DZ=y
393 select SERIAL_CORE_CONSOLE
394 default y
395 ---help---
396 If you say Y here, it will be possible to use a serial port as the
397 system console (the system console is the device which receives all
398 kernel messages and warnings and which allows logins in single user
399 mode).
400
401 Note that the firmware uses ttyS3 as the serial console on
402 DECstations that use this driver.
403
404 If unsure, say Y.
405
406config SERIAL_ZS
407 tristate "DECstation Z85C30 serial support"
408 depends on MACH_DECSTATION
409 select SERIAL_CORE
410 default y
411 ---help---
412 Support for the Zilog 85C350 serial communications controller used
413 for serial ports in newer DECstation systems. These include the
414 DECsystem 5900 and all models of the DECstation and DECsystem 5000
415 systems except from model 200.
416
417 If unsure, say Y. To compile this driver as a module, choose M here:
418 the module will be called zs.
419
420config SERIAL_ZS_CONSOLE
421 bool "Support for console on a DECstation Z85C30 serial port"
422 depends on SERIAL_ZS=y
423 select SERIAL_CORE_CONSOLE
424 default y
425 ---help---
426 If you say Y here, it will be possible to use a serial port as the
427 system console (the system console is the device which receives all
428 kernel messages and warnings and which allows logins in single user
429 mode).
430
431 Note that the firmware uses ttyS1 as the serial console on the
432 Maxine and ttyS3 on the others using this driver.
433
434 If unsure, say Y.
435
436config SERIAL_21285
437 tristate "DC21285 serial port support"
438 depends on FOOTBRIDGE
439 select SERIAL_CORE
440 help
441 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
442 PCI bridge you can enable its onboard serial port by enabling this
443 option.
444
445config SERIAL_21285_CONSOLE
446 bool "Console on DC21285 serial port"
447 depends on SERIAL_21285=y
448 select SERIAL_CORE_CONSOLE
449 help
450 If you have enabled the serial port on the 21285 footbridge you can
451 make it the console by answering Y to this option.
452
453 Even if you say Y here, the currently visible virtual console
454 (/dev/tty0) will still be used as the system console by default, but
455 you can alter that using a kernel command line option such as
456 "console=ttyFB". (Try "man bootparam" or see the documentation of
457 your boot loader (lilo or loadlin) about how to pass options to the
458 kernel at boot time.)
459
460config SERIAL_MPSC
461 bool "Marvell MPSC serial port support"
462 depends on MV64X60
463 select SERIAL_CORE
464 help
465 Say Y here if you want to use the Marvell MPSC serial controller.
466
467config SERIAL_MPSC_CONSOLE
468 bool "Support for console on Marvell MPSC serial port"
469 depends on SERIAL_MPSC
470 select SERIAL_CORE_CONSOLE
471 help
472 Say Y here if you want to support a serial console on a Marvell MPSC.
473
474config SERIAL_PXA
475 bool "PXA serial port support (DEPRECATED)"
476 depends on ARCH_PXA || ARCH_MMP
477 select SERIAL_CORE
478 select SERIAL_8250_PXA if SERIAL_8250=y
479 select SERIAL_PXA_NON8250 if !SERIAL_8250=y
480 help
481 If you have a machine based on an Intel XScale PXA2xx CPU you
482 can enable its onboard serial ports by enabling this option.
483
484 Unless you have a specific need, you should use SERIAL_8250_PXA
485 instead of this.
486
487config SERIAL_PXA_NON8250
488 bool
489 depends on !SERIAL_8250
490
491config SERIAL_PXA_CONSOLE
492 bool "Console on PXA serial port (DEPRECATED)"
493 depends on SERIAL_PXA
494 select SERIAL_CORE_CONSOLE
495 select SERIAL_8250_CONSOLE if SERIAL_8250=y
496 help
497 If you have enabled the serial port on the Intel XScale PXA
498 CPU you can make it the console by answering Y to this option.
499
500 Even if you say Y here, the currently visible virtual console
501 (/dev/tty0) will still be used as the system console by default, but
502 you can alter that using a kernel command line option such as
503 "console=ttySA0". (Try "man bootparam" or see the documentation of
504 your boot loader (lilo or loadlin) about how to pass options to the
505 kernel at boot time.)
506
507 Unless you have a specific need, you should use SERIAL_8250_PXA
508 and SERIAL_8250_CONSOLE instead of this.
509
510config SERIAL_SA1100
511 bool "SA1100 serial port support"
512 depends on ARCH_SA1100
513 select SERIAL_CORE
514 help
515 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
516 can enable its onboard serial port by enabling this option.
517 Please read <file:Documentation/arm/SA1100/serial_UART> for further
518 info.
519
520config SERIAL_SA1100_CONSOLE
521 bool "Console on SA1100 serial port"
522 depends on SERIAL_SA1100
523 select SERIAL_CORE_CONSOLE
524 help
525 If you have enabled the serial port on the SA1100/SA1110 StrongARM
526 CPU you can make it the console by answering Y to this option.
527
528 Even if you say Y here, the currently visible virtual console
529 (/dev/tty0) will still be used as the system console by default, but
530 you can alter that using a kernel command line option such as
531 "console=ttySA0". (Try "man bootparam" or see the documentation of
532 your boot loader (lilo or loadlin) about how to pass options to the
533 kernel at boot time.)
534
535config SERIAL_IMX
536 tristate "IMX serial port support"
537 depends on ARCH_MXC || COMPILE_TEST
538 select SERIAL_CORE
539 select RATIONAL
540 select SERIAL_MCTRL_GPIO if GPIOLIB
541 help
542 If you have a machine based on a Motorola IMX CPU you
543 can enable its onboard serial port by enabling this option.
544
545config SERIAL_IMX_CONSOLE
546 bool "Console on IMX serial port"
547 depends on SERIAL_IMX=y
548 select SERIAL_CORE_CONSOLE
549 select SERIAL_EARLYCON if OF
550 help
551 If you have enabled the serial port on the Freescale IMX
552 CPU you can make it the console by answering Y to this option.
553
554 Even if you say Y here, the currently visible virtual console
555 (/dev/tty0) will still be used as the system console by default, but
556 you can alter that using a kernel command line option such as
557 "console=ttymxc0". (Try "man bootparam" or see the documentation of
558 your bootloader about how to pass options to the kernel at boot time.)
559
560config SERIAL_UARTLITE
561 tristate "Xilinx uartlite serial port support"
562 depends on HAS_IOMEM
563 select SERIAL_CORE
564 help
565 Say Y here if you want to use the Xilinx uartlite serial controller.
566
567 To compile this driver as a module, choose M here: the
568 module will be called uartlite.
569
570config SERIAL_UARTLITE_CONSOLE
571 bool "Support for console on Xilinx uartlite serial port"
572 depends on SERIAL_UARTLITE=y
573 select SERIAL_CORE_CONSOLE
574 select SERIAL_EARLYCON
575 help
576 Say Y here if you wish to use a Xilinx uartlite as the system
577 console (the system console is the device which receives all kernel
578 messages and warnings and which allows logins in single user mode).
579
580config SERIAL_UARTLITE_NR_UARTS
581 int "Maximum number of uartlite serial ports"
582 depends on SERIAL_UARTLITE
583 range 1 256
584 default 1
585 help
586 Set this to the number of uartlites in your system, or the number
587 you think you might implement.
588
589config SERIAL_SUNCORE
590 bool
591 depends on SPARC
592 select SERIAL_CORE
593 select SERIAL_CORE_CONSOLE
594 default y
595
596config SERIAL_SUNZILOG
597 tristate "Sun Zilog8530 serial support"
598 depends on SPARC
599 help
600 This driver supports the Zilog8530 serial ports found on many Sparc
601 systems. Say Y or M if you want to be able to these serial ports.
602
603config SERIAL_SUNZILOG_CONSOLE
604 bool "Console on Sun Zilog8530 serial port"
605 depends on SERIAL_SUNZILOG=y
606 help
607 If you would like to be able to use the Zilog8530 serial port
608 on your Sparc system as the console, you can do so by answering
609 Y to this option.
610
611config SERIAL_SUNSU
612 tristate "Sun SU serial support"
613 depends on SPARC && PCI
614 help
615 This driver supports the 8250 serial ports that run the keyboard and
616 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
617 to these serial ports.
618
619config SERIAL_SUNSU_CONSOLE
620 bool "Console on Sun SU serial port"
621 depends on SERIAL_SUNSU=y
622 help
623 If you would like to be able to use the SU serial port
624 on your Sparc system as the console, you can do so by answering
625 Y to this option.
626
627config SERIAL_MUX
628 tristate "Serial MUX support"
629 depends on GSC
630 select SERIAL_CORE
631 default y
632 ---help---
633 Saying Y here will enable the hardware MUX serial driver for
634 the Nova, K class systems and D class with a 'remote control card'.
635 The hardware MUX is not 8250/16550 compatible therefore the
636 /dev/ttyB0 device is shared between the Serial MUX and the PDC
637 software console. The following steps need to be completed to use
638 the Serial MUX:
639
640 1. create the device entry (mknod /dev/ttyB0 c 11 0)
641 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
642 3. Add device ttyB0 to /etc/securetty (if you want to log on as
643 root on this console.)
644 4. Change the kernel command console parameter to: console=ttyB0
645
646config SERIAL_MUX_CONSOLE
647 bool "Support for console on serial MUX"
648 depends on SERIAL_MUX=y
649 select SERIAL_CORE_CONSOLE
650 default y
651
652config PDC_CONSOLE
653 bool "PDC software console support"
654 depends on PARISC && !SERIAL_MUX && VT
655 default n
656 help
657 Saying Y here will enable the software based PDC console to be
658 used as the system console. This is useful for machines in
659 which the hardware based console has not been written yet. The
660 following steps must be completed to use the PDC console:
661
662 1. create the device entry (mknod /dev/ttyB0 c 11 0)
663 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
664 3. Add device ttyB0 to /etc/securetty (if you want to log on as
665 root on this console.)
666 4. Change the kernel command console parameter to: console=ttyB0
667
668config SERIAL_SUNSAB
669 tristate "Sun Siemens SAB82532 serial support"
670 depends on SPARC && PCI
671 help
672 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
673 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
674 serial ports.
675
676config SERIAL_SUNSAB_CONSOLE
677 bool "Console on Sun Siemens SAB82532 serial port"
678 depends on SERIAL_SUNSAB=y
679 help
680 If you would like to be able to use the SAB82532 serial port
681 on your Sparc system as the console, you can do so by answering
682 Y to this option.
683
684config SERIAL_SUNHV
685 bool "Sun4v Hypervisor Console support"
686 depends on SPARC64
687 help
688 This driver supports the console device found on SUN4V Sparc
689 systems. Say Y if you want to be able to use this device.
690
691config SERIAL_IP22_ZILOG
692 tristate "SGI Zilog8530 serial support"
693 depends on SGI_HAS_ZILOG
694 select SERIAL_CORE
695 help
696 This driver supports the Zilog8530 serial ports found on SGI
697 systems. Say Y or M if you want to be able to these serial ports.
698
699config SERIAL_IP22_ZILOG_CONSOLE
700 bool "Console on SGI Zilog8530 serial port"
701 depends on SERIAL_IP22_ZILOG=y
702 select SERIAL_CORE_CONSOLE
703
704config SERIAL_SH_SCI
705 tristate "SuperH SCI(F) serial port support"
706 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
707 select SERIAL_CORE
708 select SERIAL_MCTRL_GPIO if GPIOLIB
709
710config SERIAL_SH_SCI_NR_UARTS
711 int "Maximum number of SCI(F) serial ports" if EXPERT
712 range 1 64 if 64BIT
713 range 1 32 if !64BIT
714 depends on SERIAL_SH_SCI
715 default "3" if H8300
716 default "10" if SUPERH
717 default "18" if ARCH_RENESAS
718 default "2"
719
720config SERIAL_SH_SCI_CONSOLE
721 bool "Support for console on SuperH SCI(F)" if EXPERT
722 depends on SERIAL_SH_SCI=y
723 select SERIAL_CORE_CONSOLE
724 default y
725
726config SERIAL_SH_SCI_EARLYCON
727 bool "Support for early console on SuperH SCI(F)" if EXPERT
728 depends on SERIAL_SH_SCI=y
729 select SERIAL_CORE_CONSOLE
730 select SERIAL_EARLYCON
731 default ARCH_RENESAS || H8300
732
733config SERIAL_SH_SCI_DMA
734 bool "DMA support" if EXPERT
735 depends on SERIAL_SH_SCI && DMA_ENGINE
736 default ARCH_RENESAS
737
738config SERIAL_PNX8XXX
739 bool "Enable PNX8XXX SoCs' UART Support"
740 depends on SOC_PNX833X
741 select SERIAL_CORE
742 help
743 If you have a MIPS-based Philips SoC such as PNX8330 and you want
744 to use serial ports, say Y. Otherwise, say N.
745
746config SERIAL_PNX8XXX_CONSOLE
747 bool "Enable PNX8XX0 serial console"
748 depends on SERIAL_PNX8XXX
749 select SERIAL_CORE_CONSOLE
750 help
751 If you have a MIPS-based Philips SoC such as PNX8330 and you want
752 to use serial console, say Y. Otherwise, say N.
753
754config SERIAL_HS_LPC32XX
755 tristate "LPC32XX high speed serial port support"
756 depends on ARCH_LPC32XX && OF
757 select SERIAL_CORE
758 help
759 Support for the LPC32XX high speed serial ports (up to 900kbps).
760 Those are UARTs completely different from the Standard UARTs on the
761 LPC32XX SoC.
762 Choose M or Y here to build this driver.
763
764config SERIAL_HS_LPC32XX_CONSOLE
765 bool "Enable LPC32XX high speed UART serial console"
766 depends on SERIAL_HS_LPC32XX=y
767 select SERIAL_CORE_CONSOLE
768 help
769 If you would like to be able to use one of the high speed serial
770 ports on the LPC32XX as the console, you can do so by answering
771 Y to this option.
772
773config SERIAL_CORE
774 tristate
775
776config SERIAL_CORE_CONSOLE
777 bool
778
779config CONSOLE_POLL
780 bool
781
782config SERIAL_MCF
783 bool "Coldfire serial support"
784 depends on COLDFIRE
785 select SERIAL_CORE
786 help
787 This serial driver supports the Freescale Coldfire serial ports.
788
789config SERIAL_MCF_BAUDRATE
790 int "Default baudrate for Coldfire serial ports"
791 depends on SERIAL_MCF
792 default 19200
793 help
794 This setting lets you define what the default baudrate is for the
795 ColdFire serial ports. The usual default varies from board to board,
796 and this setting is a way of catering for that.
797
798config SERIAL_MCF_CONSOLE
799 bool "Coldfire serial console support"
800 depends on SERIAL_MCF
801 select SERIAL_CORE_CONSOLE
802 help
803 Enable a ColdFire internal serial port to be the system console.
804
805config SERIAL_PMACZILOG
806 tristate "Mac or PowerMac z85c30 ESCC support"
807 depends on (M68K && MAC) || PPC_PMAC
808 select SERIAL_CORE
809 help
810 This driver supports the Zilog z85C30 serial ports found on
811 (Power)Mac machines.
812 Say Y or M if you want to be able to these serial ports.
813
814config SERIAL_PMACZILOG_TTYS
815 bool "Use ttySn device nodes for Zilog z85c30"
816 depends on SERIAL_PMACZILOG
817 help
818 The pmac_zilog driver for the z85C30 chip on many powermacs
819 historically used the device numbers for /dev/ttySn. The
820 8250 serial port driver also uses these numbers, which means
821 the two drivers being unable to coexist; you could not use
822 both z85C30 and 8250 type ports at the same time.
823
824 If this option is not selected, the pmac_zilog driver will
825 use the device numbers allocated for /dev/ttyPZn. This allows
826 the pmac_zilog and 8250 drivers to co-exist, but may cause
827 existing userspace setups to break. Programs that need to
828 access the built-in serial ports on powermacs will need to
829 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
830
831 If you enable this option, any z85c30 ports in the system will
832 be registered as ttyS0 onwards as in the past, and you will be
833 unable to use the 8250 module for PCMCIA or other 16C550-style
834 UARTs.
835
836 Say N unless you need the z85c30 ports on your (Power)Mac
837 to appear as /dev/ttySn.
838
839config SERIAL_PMACZILOG_CONSOLE
840 bool "Console on Mac or PowerMac z85c30 serial port"
841 depends on SERIAL_PMACZILOG=y
842 select SERIAL_CORE_CONSOLE
843 help
844 If you would like to be able to use the z85c30 serial port
845 on your (Power)Mac as the console, you can do so by answering
846 Y to this option.
847
848config SERIAL_CPM
849 tristate "CPM SCC/SMC serial port support"
850 depends on CPM2 || CPM1
851 select SERIAL_CORE
852 help
853 This driver supports the SCC and SMC serial ports on Motorola
854 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
855
856config SERIAL_CPM_CONSOLE
857 bool "Support for console on CPM SCC/SMC serial port"
858 depends on SERIAL_CPM=y
859 select SERIAL_CORE_CONSOLE
860 help
861 Say Y here if you wish to use a SCC or SMC CPM UART as the system
862 console (the system console is the device which receives all kernel
863 messages and warnings and which allows logins in single user mode).
864
865 Even if you say Y here, the currently visible framebuffer console
866 (/dev/tty0) will still be used as the system console by default, but
867 you can alter that using a kernel command line option such as
868 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
869 your boot loader (lilo or loadlin) about how to pass options to the
870 kernel at boot time.)
871
872config SERIAL_SGI_L1_CONSOLE
873 bool "SGI Altix L1 serial console support"
874 depends on IA64_GENERIC || IA64_SGI_SN2
875 select SERIAL_CORE
876 select SERIAL_CORE_CONSOLE
877 help
878 If you have an SGI Altix and you would like to use the system
879 controller serial port as your console (you want this!),
880 say Y. Otherwise, say N.
881
882config SERIAL_PIC32
883 tristate "Microchip PIC32 serial support"
884 depends on MACH_PIC32
885 select SERIAL_CORE
886 help
887 If you have a PIC32, this driver supports the serial ports.
888
889 Say Y or M to use PIC32 serial ports, otherwise say N. Note that
890 to use a serial port as a console, this must be included in kernel and
891 not as a module.
892
893config SERIAL_PIC32_CONSOLE
894 bool "PIC32 serial console support"
895 depends on SERIAL_PIC32
896 select SERIAL_CORE_CONSOLE
897 help
898 If you have a PIC32, this driver supports the putting a console on one
899 of the serial ports.
900
901 Say Y to use the PIC32 console, otherwise say N.
902
903config SERIAL_MPC52xx
904 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
905 depends on PPC_MPC52xx || PPC_MPC512x
906 select SERIAL_CORE
907 help
908 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
909 like to use them, you must answer Y or M to this option. Note that
910 for use as console, it must be included in kernel and not as a
911 module.
912
913config SERIAL_MPC52xx_CONSOLE
914 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
915 depends on SERIAL_MPC52xx=y
916 select SERIAL_CORE_CONSOLE
917 help
918 Select this options if you'd like to use one of the PSC serial port
919 of the Freescale MPC52xx family as a console.
920
921config SERIAL_MPC52xx_CONSOLE_BAUD
922 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
923 depends on SERIAL_MPC52xx_CONSOLE=y
924 default "9600"
925 help
926 Select the MPC52xx console baud rate.
927 This value is only used if the bootloader doesn't pass in the
928 console baudrate
929
930config SERIAL_ICOM
931 tristate "IBM Multiport Serial Adapter"
932 depends on PCI && PPC_PSERIES
933 select SERIAL_CORE
934 select FW_LOADER
935 help
936 This driver is for a family of multiport serial adapters
937 including 2 port RVX, 2 port internal modem, 4 port internal
938 modem and a split 1 port RVX and 1 port internal modem.
939
940 This driver can also be built as a module. If so, the module
941 will be called icom.
942
943config SERIAL_TXX9
944 bool "TMPTX39XX/49XX SIO support"
945 depends on HAS_TXX9_SERIAL
946 select SERIAL_CORE
947 default y
948
949config HAS_TXX9_SERIAL
950 bool
951
952config SERIAL_TXX9_NR_UARTS
953 int "Maximum number of TMPTX39XX/49XX SIO ports"
954 depends on SERIAL_TXX9
955 default "6"
956
957config SERIAL_TXX9_CONSOLE
958 bool "TMPTX39XX/49XX SIO Console support"
959 depends on SERIAL_TXX9=y
960 select SERIAL_CORE_CONSOLE
961
962config SERIAL_TXX9_STDSERIAL
963 bool "TX39XX/49XX SIO act as standard serial"
964 depends on !SERIAL_8250 && SERIAL_TXX9
965
966config SERIAL_VR41XX
967 tristate "NEC VR4100 series Serial Interface Unit support"
968 depends on CPU_VR41XX
969 select SERIAL_CORE
970 help
971 If you have a NEC VR4100 series processor and you want to use
972 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
973 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
974
975config SERIAL_VR41XX_CONSOLE
976 bool "Enable NEC VR4100 series Serial Interface Unit console"
977 depends on SERIAL_VR41XX=y
978 select SERIAL_CORE_CONSOLE
979 help
980 If you have a NEC VR4100 series processor and you want to use
981 a console on a serial port, say Y. Otherwise, say N.
982
983config SERIAL_JSM
984 tristate "Digi International NEO and Classic PCI Support"
985 depends on PCI
986 select SERIAL_CORE
987 help
988 This is a driver for Digi International's Neo and Classic series
989 of cards which provide multiple serial ports. You would need
990 something like this to connect more than two modems to your Linux
991 box, for instance in order to become a dial-in server. This driver
992 supports PCI boards only.
993
994 If you have a card like this, say Y here, otherwise say N.
995
996 To compile this driver as a module, choose M here: the
997 module will be called jsm.
998
999config SERIAL_SGI_IOC4
1000 tristate "SGI IOC4 controller serial support"
1001 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1002 select SERIAL_CORE
1003 help
1004 If you have an SGI Altix with an IOC4 based Base IO card
1005 and wish to use the serial ports on this card, say Y.
1006 Otherwise, say N.
1007
1008config SERIAL_SGI_IOC3
1009 tristate "SGI Altix IOC3 serial support"
1010 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1011 select SERIAL_CORE
1012 help
1013 If you have an SGI Altix with an IOC3 serial card,
1014 say Y or M. Otherwise, say N.
1015
1016config SERIAL_MSM
1017 tristate "MSM on-chip serial port support"
1018 depends on ARCH_QCOM
1019 select SERIAL_CORE
1020
1021config SERIAL_MSM_CONSOLE
1022 bool "MSM serial console support"
1023 depends on SERIAL_MSM=y
1024 select SERIAL_CORE_CONSOLE
1025 select SERIAL_EARLYCON
1026
1027config SERIAL_QCOM_GENI
1028 tristate "QCOM on-chip GENI based serial port support"
1029 depends on ARCH_QCOM || COMPILE_TEST
1030 depends on QCOM_GENI_SE
1031 select SERIAL_CORE
1032
1033config SERIAL_QCOM_GENI_CONSOLE
1034 bool "QCOM GENI Serial Console support"
1035 depends on SERIAL_QCOM_GENI=y
1036 select SERIAL_CORE_CONSOLE
1037 select SERIAL_EARLYCON
1038 help
1039 Serial console driver for Qualcomm Technologies Inc's GENI based
1040 QUP hardware.
1041
1042config SERIAL_VT8500
1043 bool "VIA VT8500 on-chip serial port support"
1044 depends on ARCH_VT8500
1045 select SERIAL_CORE
1046
1047config SERIAL_VT8500_CONSOLE
1048 bool "VIA VT8500 serial console support"
1049 depends on SERIAL_VT8500=y
1050 select SERIAL_CORE_CONSOLE
1051
1052config SERIAL_NETX
1053 tristate "NetX serial port support"
1054 depends on ARCH_NETX
1055 select SERIAL_CORE
1056 help
1057 If you have a machine based on a Hilscher NetX SoC you
1058 can enable its onboard serial port by enabling this option.
1059
1060 To compile this driver as a module, choose M here: the
1061 module will be called netx-serial.
1062
1063config SERIAL_NETX_CONSOLE
1064 bool "Console on NetX serial port"
1065 depends on SERIAL_NETX=y
1066 select SERIAL_CORE_CONSOLE
1067 help
1068 If you have enabled the serial port on the Hilscher NetX SoC
1069 you can make it the console by answering Y to this option.
1070
1071config SERIAL_OMAP
1072 tristate "OMAP serial port support"
1073 depends on ARCH_OMAP2PLUS
1074 select SERIAL_CORE
1075 help
1076 If you have a machine based on an Texas Instruments OMAP CPU you
1077 can enable its onboard serial ports by enabling this option.
1078
1079 By enabling this option you take advantage of dma feature available
1080 with the omap-serial driver. DMA support can be enabled from platform
1081 data.
1082
1083config SERIAL_OMAP_CONSOLE
1084 bool "Console on OMAP serial port"
1085 depends on SERIAL_OMAP=y
1086 select SERIAL_CORE_CONSOLE
1087 help
1088 Select this option if you would like to use omap serial port as
1089 console.
1090
1091 Even if you say Y here, the currently visible virtual console
1092 (/dev/tty0) will still be used as the system console by default, but
1093 you can alter that using a kernel command line option such as
1094 "console=ttyOx". (Try "man bootparam" or see the documentation of
1095 your boot loader about how to pass options to the kernel at
1096 boot time.)
1097
1098config SERIAL_LANTIQ
1099 bool "Lantiq serial driver"
1100 depends on LANTIQ
1101 select SERIAL_CORE
1102 select SERIAL_CORE_CONSOLE
1103 select SERIAL_EARLYCON
1104 help
1105 Support for console and UART on Lantiq SoCs.
1106
1107config SERIAL_QE
1108 tristate "Freescale QUICC Engine serial port support"
1109 depends on QUICC_ENGINE
1110 select SERIAL_CORE
1111 select FW_LOADER
1112 default n
1113 help
1114 This driver supports the QE serial ports on Freescale embedded
1115 PowerPC that contain a QUICC Engine.
1116
1117config SERIAL_SCCNXP
1118 tristate "SCCNXP serial port support"
1119 select SERIAL_CORE
1120 help
1121 This selects support for an advanced UART from NXP (Philips).
1122 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1123 SC28L202, SCC68681 and SCC68692.
1124
1125config SERIAL_SCCNXP_CONSOLE
1126 bool "Console on SCCNXP serial port"
1127 depends on SERIAL_SCCNXP=y
1128 select SERIAL_CORE_CONSOLE
1129 help
1130 Support for console on SCCNXP serial ports.
1131
1132config SERIAL_SC16IS7XX_CORE
1133 tristate
1134
1135config SERIAL_SC16IS7XX
1136 tristate "SC16IS7xx serial support"
1137 select SERIAL_CORE
1138 depends on (SPI_MASTER && !I2C) || I2C
1139 help
1140 This selects support for SC16IS7xx serial ports.
1141 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1142 SC16IS760 and SC16IS762. Select supported buses using options below.
1143
1144config SERIAL_SC16IS7XX_I2C
1145 bool "SC16IS7xx for I2C interface"
1146 depends on SERIAL_SC16IS7XX
1147 depends on I2C
1148 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1149 select REGMAP_I2C if I2C
1150 default y
1151 help
1152 Enable SC16IS7xx driver on I2C bus,
1153 If required say y, and say n to i2c if not required,
1154 Enabled by default to support oldconfig.
1155 You must select at least one bus for the driver to be built.
1156
1157config SERIAL_SC16IS7XX_SPI
1158 bool "SC16IS7xx for spi interface"
1159 depends on SERIAL_SC16IS7XX
1160 depends on SPI_MASTER
1161 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1162 select REGMAP_SPI if SPI_MASTER
1163 help
1164 Enable SC16IS7xx driver on SPI bus,
1165 If required say y, and say n to spi if not required,
1166 This is additional support to exsisting driver.
1167 You must select at least one bus for the driver to be built.
1168
1169config SERIAL_TIMBERDALE
1170 tristate "Support for timberdale UART"
1171 select SERIAL_CORE
1172 depends on X86_32 || COMPILE_TEST
1173 ---help---
1174 Add support for UART controller on timberdale.
1175
1176config SERIAL_BCM63XX
1177 tristate "Broadcom BCM63xx/BCM33xx UART support"
1178 select SERIAL_CORE
1179 depends on MIPS || ARM || COMPILE_TEST
1180 help
1181 This enables the driver for the onchip UART core found on
1182 the following chipsets:
1183
1184 BCM33xx (cable modem)
1185 BCM63xx/BCM63xxx (DSL)
1186 BCM68xx (PON)
1187 BCM7xxx (STB) - DOCSIS console
1188
1189config SERIAL_BCM63XX_CONSOLE
1190 bool "Console on BCM63xx serial port"
1191 depends on SERIAL_BCM63XX=y
1192 select SERIAL_CORE_CONSOLE
1193 select SERIAL_EARLYCON
1194 help
1195 If you have enabled the serial port on the BCM63xx CPU
1196 you can make it the console by answering Y to this option.
1197
1198config SERIAL_GRLIB_GAISLER_APBUART
1199 tristate "GRLIB APBUART serial support"
1200 depends on OF && SPARC
1201 select SERIAL_CORE
1202 ---help---
1203 Add support for the GRLIB APBUART serial port.
1204
1205config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1206 bool "Console on GRLIB APBUART serial port"
1207 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1208 select SERIAL_CORE_CONSOLE
1209 help
1210 Support for running a console on the GRLIB APBUART
1211
1212config SERIAL_ALTERA_JTAGUART
1213 tristate "Altera JTAG UART support"
1214 select SERIAL_CORE
1215 help
1216 This driver supports the Altera JTAG UART port.
1217
1218config SERIAL_ALTERA_JTAGUART_CONSOLE
1219 bool "Altera JTAG UART console support"
1220 depends on SERIAL_ALTERA_JTAGUART=y
1221 select SERIAL_CORE_CONSOLE
1222 select SERIAL_EARLYCON
1223 help
1224 Enable a Altera JTAG UART port to be the system console.
1225
1226config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1227 bool "Bypass output when no connection"
1228 depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1229 select SERIAL_CORE_CONSOLE
1230 help
1231 Bypass console output and keep going even if there is no
1232 JTAG terminal connection with the host.
1233
1234config SERIAL_ALTERA_UART
1235 tristate "Altera UART support"
1236 select SERIAL_CORE
1237 help
1238 This driver supports the Altera softcore UART port.
1239
1240config SERIAL_ALTERA_UART_MAXPORTS
1241 int "Maximum number of Altera UART ports"
1242 depends on SERIAL_ALTERA_UART
1243 default 4
1244 help
1245 This setting lets you define the maximum number of the Altera
1246 UART ports. The usual default varies from board to board, and
1247 this setting is a way of catering for that.
1248
1249config SERIAL_ALTERA_UART_BAUDRATE
1250 int "Default baudrate for Altera UART ports"
1251 depends on SERIAL_ALTERA_UART
1252 default 115200
1253 help
1254 This setting lets you define what the default baudrate is for the
1255 Altera UART ports. The usual default varies from board to board,
1256 and this setting is a way of catering for that.
1257
1258config SERIAL_ALTERA_UART_CONSOLE
1259 bool "Altera UART console support"
1260 depends on SERIAL_ALTERA_UART=y
1261 select SERIAL_CORE_CONSOLE
1262 select SERIAL_EARLYCON
1263 help
1264 Enable a Altera UART port to be the system console.
1265
1266config SERIAL_IFX6X60
1267 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1268 depends on GPIOLIB || COMPILE_TEST
1269 depends on SPI && HAS_DMA
1270 help
1271 Support for the IFX6x60 modem devices on Intel MID platforms.
1272
1273config SERIAL_PCH_UART
1274 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1275 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
1276 select SERIAL_CORE
1277 help
1278 This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1279 which is an IOH(Input/Output Hub) for x86 embedded processor.
1280 Enabling PCH_DMA, this PCH UART works as DMA mode.
1281
1282 This driver also can be used for LAPIS Semiconductor IOH(Input/
1283 Output Hub), ML7213, ML7223 and ML7831.
1284 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1285 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1286 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1287 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1288
1289config SERIAL_PCH_UART_CONSOLE
1290 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1291 depends on SERIAL_PCH_UART=y
1292 select SERIAL_CORE_CONSOLE
1293 help
1294 Say Y here if you wish to use the PCH UART as the system console
1295 (the system console is the device which receives all kernel messages and
1296 warnings and which allows logins in single user mode).
1297
1298config SERIAL_MXS_AUART
1299 tristate "MXS AUART support"
1300 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1301 select SERIAL_CORE
1302 select SERIAL_MCTRL_GPIO if GPIOLIB
1303 help
1304 This driver supports the MXS and Alphascale ASM9260 Application
1305 UART (AUART) port.
1306
1307config SERIAL_MXS_AUART_CONSOLE
1308 bool "MXS AUART console support"
1309 depends on SERIAL_MXS_AUART=y
1310 select SERIAL_CORE_CONSOLE
1311 help
1312 Enable a MXS AUART port to be the system console.
1313
1314config SERIAL_XILINX_PS_UART
1315 tristate "Cadence (Xilinx Zynq) UART support"
1316 depends on OF
1317 select SERIAL_CORE
1318 help
1319 This driver supports the Cadence UART. It is found e.g. in Xilinx
1320 Zynq.
1321
1322config SERIAL_XILINX_PS_UART_CONSOLE
1323 bool "Cadence UART console support"
1324 depends on SERIAL_XILINX_PS_UART=y
1325 select SERIAL_CORE_CONSOLE
1326 select SERIAL_EARLYCON
1327 help
1328 Enable a Cadence UART port to be the system console.
1329
1330config SERIAL_AR933X
1331 tristate "AR933X serial port support"
1332 depends on HAVE_CLK && ATH79
1333 select SERIAL_CORE
1334 help
1335 If you have an Atheros AR933X SOC based board and want to use the
1336 built-in UART of the SoC, say Y to this option.
1337
1338 To compile this driver as a module, choose M here: the
1339 module will be called ar933x_uart.
1340
1341config SERIAL_AR933X_CONSOLE
1342 bool "Console on AR933X serial port"
1343 depends on SERIAL_AR933X=y
1344 select SERIAL_CORE_CONSOLE
1345 help
1346 Enable a built-in UART port of the AR933X to be the system console.
1347
1348config SERIAL_AR933X_NR_UARTS
1349 int "Maximum number of AR933X serial ports"
1350 depends on SERIAL_AR933X
1351 default "2"
1352 help
1353 Set this to the number of serial ports you want the driver
1354 to support.
1355
1356config SERIAL_EFM32_UART
1357 tristate "EFM32 UART/USART port"
1358 depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1359 select SERIAL_CORE
1360 help
1361 This driver support the USART and UART ports on
1362 Energy Micro's efm32 SoCs.
1363
1364config SERIAL_MPS2_UART_CONSOLE
1365 bool "MPS2 UART console support"
1366 depends on SERIAL_MPS2_UART
1367 select SERIAL_CORE_CONSOLE
1368 select SERIAL_EARLYCON
1369
1370config SERIAL_MPS2_UART
1371 bool "MPS2 UART port"
1372 depends on ARCH_MPS2 || COMPILE_TEST
1373 select SERIAL_CORE
1374 help
1375 This driver support the UART ports on ARM MPS2.
1376
1377config SERIAL_EFM32_UART_CONSOLE
1378 bool "EFM32 UART/USART console support"
1379 depends on SERIAL_EFM32_UART=y
1380 select SERIAL_CORE_CONSOLE
1381
1382config SERIAL_ARC
1383 tristate "ARC UART driver support"
1384 select SERIAL_CORE
1385 help
1386 Driver for on-chip UART for ARC(Synopsys) for the legacy
1387 FPGA Boards (ML50x/ARCAngel4)
1388
1389config SERIAL_ARC_CONSOLE
1390 bool "Console on ARC UART"
1391 depends on SERIAL_ARC=y
1392 select SERIAL_CORE_CONSOLE
1393 select SERIAL_EARLYCON
1394 help
1395 Enable system Console on ARC UART
1396
1397config SERIAL_ARC_NR_PORTS
1398 int "Number of ARC UART ports"
1399 depends on SERIAL_ARC
1400 range 1 3
1401 default "1"
1402 help
1403 Set this to the number of serial ports you want the driver
1404 to support.
1405
1406config SERIAL_RP2
1407 tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1408 depends on PCI
1409 select SERIAL_CORE
1410 help
1411 This driver supports the Comtrol RocketPort EXPRESS and
1412 RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1413 These adapters use a "RocketPort 2" ASIC that is not compatible
1414 with the original RocketPort driver (CONFIG_ROCKETPORT).
1415
1416 To compile this driver as a module, choose M here: the
1417 module will be called rp2.
1418
1419 If you want to compile this driver into the kernel, say Y here. If
1420 you don't have a suitable RocketPort card installed, say N.
1421
1422config SERIAL_RP2_NR_UARTS
1423 int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1424 depends on SERIAL_RP2
1425 default "32"
1426 help
1427 If multiple cards are present, the default limit of 32 ports may
1428 need to be increased.
1429
1430config SERIAL_FSL_LPUART
1431 tristate "Freescale lpuart serial port support"
1432 depends on HAS_DMA
1433 select SERIAL_CORE
1434 help
1435 Support for the on-chip lpuart on some Freescale SOCs.
1436
1437config SERIAL_FSL_LPUART_CONSOLE
1438 bool "Console on Freescale lpuart serial port"
1439 depends on SERIAL_FSL_LPUART=y
1440 select SERIAL_CORE_CONSOLE
1441 select SERIAL_EARLYCON
1442 help
1443 If you have enabled the lpuart serial port on the Freescale SoCs,
1444 you can make it the console by answering Y to this option.
1445
1446config SERIAL_CONEXANT_DIGICOLOR
1447 tristate "Conexant Digicolor CX92xxx USART serial port support"
1448 depends on OF
1449 select SERIAL_CORE
1450 help
1451 Support for the on-chip USART on Conexant Digicolor SoCs.
1452
1453config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1454 bool "Console on Conexant Digicolor serial port"
1455 depends on SERIAL_CONEXANT_DIGICOLOR=y
1456 select SERIAL_CORE_CONSOLE
1457 help
1458 If you have enabled the USART serial port on Conexant Digicolor
1459 SoCs, you can make it the console by answering Y to this option.
1460
1461config SERIAL_ST_ASC
1462 tristate "ST ASC serial port support"
1463 select SERIAL_CORE
1464 depends on ARM || COMPILE_TEST
1465 help
1466 This driver is for the on-chip Asychronous Serial Controller on
1467 STMicroelectronics STi SoCs.
1468 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1469 It support all industry standard baud rates.
1470
1471 If unsure, say N.
1472
1473config SERIAL_ST_ASC_CONSOLE
1474 bool "Support for console on ST ASC"
1475 depends on SERIAL_ST_ASC=y
1476 select SERIAL_CORE_CONSOLE
1477
1478config SERIAL_MEN_Z135
1479 tristate "MEN 16z135 Support"
1480 select SERIAL_CORE
1481 depends on MCB
1482 help
1483 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1484 on a MCB carrier.
1485
1486 This driver can also be build as a module. If so, the module will be called
1487 men_z135_uart.ko
1488
1489config SERIAL_SPRD
1490 tristate "Support for Spreadtrum serial"
1491 depends on ARCH_SPRD
1492 select SERIAL_CORE
1493 help
1494 This enables the driver for the Spreadtrum's serial.
1495
1496config SERIAL_SPRD_CONSOLE
1497 bool "Spreadtrum UART console support"
1498 depends on SERIAL_SPRD=y
1499 select SERIAL_CORE_CONSOLE
1500 select SERIAL_EARLYCON
1501 help
1502 Support for early debug console using Spreadtrum's serial. This enables
1503 the console before standard serial driver is probed. This is enabled
1504 with "earlycon" on the kernel command line. The console is
1505 enabled when early_param is processed.
1506
1507config SERIAL_STM32
1508 tristate "STMicroelectronics STM32 serial port support"
1509 select SERIAL_CORE
1510 depends on ARCH_STM32 || COMPILE_TEST
1511 help
1512 This driver is for the on-chip Serial Controller on
1513 STMicroelectronics STM32 MCUs.
1514 USART supports Rx & Tx functionality.
1515 It support all industry standard baud rates.
1516
1517 If unsure, say N.
1518
1519config SERIAL_STM32_CONSOLE
1520 bool "Support for console on STM32"
1521 depends on SERIAL_STM32=y
1522 select SERIAL_CORE_CONSOLE
1523
1524config SERIAL_MVEBU_UART
1525 bool "Marvell EBU serial port support"
1526 depends on ARCH_MVEBU || COMPILE_TEST
1527 select SERIAL_CORE
1528 help
1529 This driver is for Marvell EBU SoC's UART. If you have a machine
1530 based on the Armada-3700 SoC and wish to use the on-board serial
1531 port,
1532 say 'Y' here.
1533 Otherwise, say 'N'.
1534
1535config SERIAL_MVEBU_CONSOLE
1536 bool "Console on Marvell EBU serial port"
1537 depends on SERIAL_MVEBU_UART
1538 select SERIAL_CORE_CONSOLE
1539 select SERIAL_EARLYCON
1540 default y
1541 help
1542 Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1543 (the system console is the device which receives all kernel messages
1544 and warnings and which allows logins in single user mode)
1545 Otherwise, say 'N'.
1546
1547config SERIAL_OWL
1548 tristate "Actions Semi Owl serial port support"
1549 depends on ARCH_ACTIONS || COMPILE_TEST
1550 select SERIAL_CORE
1551 help
1552 This driver is for Actions Semiconductor S500/S900 SoC's UART.
1553 Say 'Y' here if you wish to use the on-board serial port.
1554 Otherwise, say 'N'.
1555
1556config SERIAL_OWL_CONSOLE
1557 bool "Console on Actions Semi Owl serial port"
1558 depends on SERIAL_OWL=y
1559 select SERIAL_CORE_CONSOLE
1560 select SERIAL_EARLYCON
1561 default y
1562 help
1563 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART
1564 as the system console.
1565
1566config SERIAL_RDA
1567 bool "RDA Micro serial port support"
1568 depends on ARCH_RDA || COMPILE_TEST
1569 select SERIAL_CORE
1570 help
1571 This driver is for RDA8810PL SoC's UART.
1572 Say 'Y' here if you wish to use the on-board serial port.
1573 Otherwise, say 'N'.
1574
1575config SERIAL_RDA_CONSOLE
1576 bool "Console on RDA Micro serial port"
1577 depends on SERIAL_RDA=y
1578 select SERIAL_CORE_CONSOLE
1579 select SERIAL_EARLYCON
1580 default y
1581 help
1582 Say 'Y' here if you wish to use the RDA8810PL UART as the system
1583 console. Only earlycon is implemented currently.
1584
1585endmenu
1586
1587config SERIAL_MCTRL_GPIO
1588 tristate
1589
1590endif # TTY