tjh.dev
Linux kernel mirror (for testing)
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1# SPDX-License-Identifier: GPL-2.0
2#
3# Serial device configuration
4#
5
6if TTY
7
8menu "Serial drivers"
9 depends on HAS_IOMEM
10
11config SERIAL_EARLYCON
12 bool
13 help
14 Support for early consoles with the earlycon parameter. This enables
15 the console before standard serial driver is probed. The console is
16 enabled when early_param is processed.
17
18source "drivers/tty/serial/8250/Kconfig"
19
20comment "Non-8250 serial port support"
21
22config SERIAL_AMBA_PL010
23 tristate "ARM AMBA PL010 serial port support"
24 depends on ARM_AMBA
25 select SERIAL_CORE
26 help
27 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have
28 an Integrator/AP or Integrator/PP2 platform, or if you have a
29 Cirrus Logic EP93xx CPU, say Y or M here.
30
31 If unsure, say N.
32
33config SERIAL_AMBA_PL010_CONSOLE
34 bool "Support for console on AMBA serial port"
35 depends on SERIAL_AMBA_PL010=y
36 select SERIAL_CORE_CONSOLE
37 ---help---
38 Say Y here if you wish to use an AMBA PrimeCell UART as the system
39 console (the system console is the device which receives all kernel
40 messages and warnings and which allows logins in single user mode).
41
42 Even if you say Y here, the currently visible framebuffer console
43 (/dev/tty0) will still be used as the system console by default, but
44 you can alter that using a kernel command line option such as
45 "console=ttyAM0". (Try "man bootparam" or see the documentation of
46 your boot loader (lilo or loadlin) about how to pass options to the
47 kernel at boot time.)
48
49config SERIAL_AMBA_PL011
50 tristate "ARM AMBA PL011 serial port support"
51 depends on ARM_AMBA
52 select SERIAL_CORE
53 help
54 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have
55 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
56 here.
57
58 If unsure, say N.
59
60config SERIAL_AMBA_PL011_CONSOLE
61 bool "Support for console on AMBA serial port"
62 depends on SERIAL_AMBA_PL011=y
63 select SERIAL_CORE_CONSOLE
64 select SERIAL_EARLYCON
65 ---help---
66 Say Y here if you wish to use an AMBA PrimeCell UART as the system
67 console (the system console is the device which receives all kernel
68 messages and warnings and which allows logins in single user mode).
69
70 Even if you say Y here, the currently visible framebuffer console
71 (/dev/tty0) will still be used as the system console by default, but
72 you can alter that using a kernel command line option such as
73 "console=ttyAMA0". (Try "man bootparam" or see the documentation of
74 your boot loader (lilo or loadlin) about how to pass options to the
75 kernel at boot time.)
76
77config SERIAL_EARLYCON_ARM_SEMIHOST
78 bool "Early console using ARM semihosting"
79 depends on ARM64 || ARM
80 select SERIAL_CORE
81 select SERIAL_CORE_CONSOLE
82 select SERIAL_EARLYCON
83 help
84 Support for early debug console using ARM semihosting. This enables
85 the console before standard serial driver is probed. This is enabled
86 with "earlycon=smh" on the kernel command line. The console is
87 enabled when early_param is processed.
88
89config SERIAL_EARLYCON_RISCV_SBI
90 bool "Early console using RISC-V SBI"
91 depends on RISCV
92 select SERIAL_CORE
93 select SERIAL_CORE_CONSOLE
94 select SERIAL_EARLYCON
95 help
96 Support for early debug console using RISC-V SBI. This enables
97 the console before standard serial driver is probed. This is enabled
98 with "earlycon=sbi" on the kernel command line. The console is
99 enabled when early_param is processed.
100
101config SERIAL_SB1250_DUART
102 tristate "BCM1xxx on-chip DUART serial support"
103 depends on SIBYTE_SB1xxx_SOC=y
104 select SERIAL_CORE
105 default y
106 ---help---
107 Support for the asynchronous serial interface (DUART) included in
108 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
109 the letter D in DUART stands for "dual", which is how the device
110 is implemented. Depending on the SOC configuration there may be
111 one or more DUARTs available of which all are handled.
112
113 If unsure, say Y. To compile this driver as a module, choose M here:
114 the module will be called sb1250-duart.
115
116config SERIAL_SB1250_DUART_CONSOLE
117 bool "Support for console on a BCM1xxx DUART serial port"
118 depends on SERIAL_SB1250_DUART=y
119 select SERIAL_CORE_CONSOLE
120 default y
121 ---help---
122 If you say Y here, it will be possible to use a serial port as the
123 system console (the system console is the device which receives all
124 kernel messages and warnings and which allows logins in single user
125 mode).
126
127 If unsure, say Y.
128
129config SERIAL_ATMEL
130 bool "AT91 on-chip serial port support"
131 depends on ARCH_AT91 || COMPILE_TEST
132 select SERIAL_CORE
133 select SERIAL_MCTRL_GPIO if GPIOLIB
134 select MFD_AT91_USART
135 help
136 This enables the driver for the on-chip UARTs of the Atmel
137 AT91 processors.
138
139config SERIAL_ATMEL_CONSOLE
140 bool "Support for console on AT91 serial port"
141 depends on SERIAL_ATMEL=y
142 select SERIAL_CORE_CONSOLE
143 help
144 Say Y here if you wish to use an on-chip UART on a Atmel
145 AT91 processor as the system console (the system
146 console is the device which receives all kernel messages and
147 warnings and which allows logins in single user mode).
148
149config SERIAL_ATMEL_PDC
150 bool "Support DMA transfers on AT91 serial port"
151 depends on SERIAL_ATMEL
152 default y
153 help
154 Say Y here if you wish to use the PDC to do DMA transfers to
155 and from the Atmel AT91 serial port. In order to
156 actually use DMA transfers, make sure that the use_dma_tx
157 and use_dma_rx members in the atmel_uart_data struct is set
158 appropriately for each port.
159
160 Note that break and error handling currently doesn't work
161 properly when DMA is enabled. Make sure that ports where
162 this matters don't use DMA.
163
164config SERIAL_ATMEL_TTYAT
165 bool "Install as device ttyATn instead of ttySn"
166 depends on SERIAL_ATMEL=y
167 help
168 Say Y here if you wish to have the internal AT91 UARTs
169 appear as /dev/ttyATn (major 204, minor starting at 154)
170 instead of the normal /dev/ttySn (major 4, minor starting at
171 64). This is necessary if you also want other UARTs, such as
172 external 8250/16C550 compatible UARTs.
173 The ttySn nodes are legally reserved for the 8250 serial driver
174 but are often misused by other serial drivers.
175
176 To use this, you should create suitable ttyATn device nodes in
177 /dev/, and pass "console=ttyATn" to the kernel.
178
179 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
180
181config SERIAL_KGDB_NMI
182 bool "Serial console over KGDB NMI debugger port"
183 depends on KGDB_SERIAL_CONSOLE
184 help
185 This special driver allows you to temporary use NMI debugger port
186 as a normal console (assuming that the port is attached to KGDB).
187
188 Unlike KDB's disable_nmi command, with this driver you are always
189 able to go back to the debugger using KGDB escape sequence ($3#33).
190 This is because this console driver processes the input in NMI
191 context, and thus is able to intercept the magic sequence.
192
193 Note that since the console interprets input and uses polling
194 communication methods, for things like PPP you still must fully
195 detach debugger port from the KGDB NMI (i.e. disable_nmi), and
196 use raw console.
197
198 If unsure, say N.
199
200config SERIAL_KS8695
201 bool "Micrel KS8695 (Centaur) serial port support"
202 depends on ARCH_KS8695
203 select SERIAL_CORE
204 help
205 This selects the Micrel Centaur KS8695 UART. Say Y here.
206
207config SERIAL_KS8695_CONSOLE
208 bool "Support for console on KS8695 (Centaur) serial port"
209 depends on SERIAL_KS8695=y
210 select SERIAL_CORE_CONSOLE
211 help
212 Say Y here if you wish to use a KS8695 (Centaur) UART as the
213 system console (the system console is the device which
214 receives all kernel messages and warnings and which allows
215 logins in single user mode).
216
217config SERIAL_MESON
218 tristate "Meson serial port support"
219 depends on ARCH_MESON
220 select SERIAL_CORE
221 help
222 This enables the driver for the on-chip UARTs of the Amlogic
223 MesonX processors.
224
225config SERIAL_MESON_CONSOLE
226 bool "Support for console on meson"
227 depends on SERIAL_MESON=y
228 select SERIAL_CORE_CONSOLE
229 select SERIAL_EARLYCON
230 help
231 Say Y here if you wish to use a Amlogic MesonX UART as the
232 system console (the system console is the device which
233 receives all kernel messages and warnings and which allows
234 logins in single user mode) as /dev/ttyAMLx.
235
236config SERIAL_CLPS711X
237 tristate "CLPS711X serial port support"
238 depends on ARCH_CLPS711X || COMPILE_TEST
239 select SERIAL_CORE
240 select SERIAL_MCTRL_GPIO if GPIOLIB
241 help
242 This enables the driver for the on-chip UARTs of the Cirrus
243 Logic EP711x/EP721x/EP731x processors.
244
245config SERIAL_CLPS711X_CONSOLE
246 bool "Support for console on CLPS711X serial port"
247 depends on SERIAL_CLPS711X=y
248 select SERIAL_CORE_CONSOLE
249 help
250 Even if you say Y here, the currently visible virtual console
251 (/dev/tty0) will still be used as the system console by default, but
252 you can alter that using a kernel command line option such as
253 "console=ttyCL1".
254
255config SERIAL_SAMSUNG
256 tristate "Samsung SoC serial support"
257 depends on PLAT_SAMSUNG || ARCH_EXYNOS
258 select SERIAL_CORE
259 help
260 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
261 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
262 provide all of these ports, depending on how the serial port
263 pins are configured.
264
265config SERIAL_SAMSUNG_UARTS_4
266 bool
267 depends on SERIAL_SAMSUNG
268 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
269 help
270 Internal node for the common case of 4 Samsung compatible UARTs
271
272config SERIAL_SAMSUNG_UARTS
273 int
274 depends on SERIAL_SAMSUNG
275 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
276 default 3
277 help
278 Select the number of available UART ports for the Samsung S3C
279 serial driver
280
281config SERIAL_SAMSUNG_DEBUG
282 bool "Samsung SoC serial debug"
283 depends on SERIAL_SAMSUNG && DEBUG_LL
284 help
285 Add support for debugging the serial driver. Since this is
286 generally being used as a console, we use our own output
287 routines that go via the low-level debug printascii()
288 function.
289
290config SERIAL_SAMSUNG_CONSOLE
291 bool "Support for console on Samsung SoC serial port"
292 depends on SERIAL_SAMSUNG=y
293 select SERIAL_CORE_CONSOLE
294 select SERIAL_EARLYCON
295 help
296 Allow selection of the S3C24XX on-board serial ports for use as
297 an virtual console.
298
299 Even if you say Y here, the currently visible virtual console
300 (/dev/tty0) will still be used as the system console by default, but
301 you can alter that using a kernel command line option such as
302 "console=ttySACx". (Try "man bootparam" or see the documentation of
303 your boot loader about how to pass options to the kernel at
304 boot time.)
305
306config SERIAL_SIRFSOC
307 tristate "SiRF SoC Platform Serial port support"
308 depends on ARCH_SIRF
309 select SERIAL_CORE
310 help
311 Support for the on-chip UART on the CSR SiRFprimaII series,
312 providing /dev/ttySiRF0, 1 and 2 (note, some machines may not
313 provide all of these ports, depending on how the serial port
314 pins are configured).
315
316config SERIAL_SIRFSOC_CONSOLE
317 bool "Support for console on SiRF SoC serial port"
318 depends on SERIAL_SIRFSOC=y
319 select SERIAL_CORE_CONSOLE
320 help
321 Even if you say Y here, the currently visible virtual console
322 (/dev/tty0) will still be used as the system console by default, but
323 you can alter that using a kernel command line option such as
324 "console=ttySiRFx". (Try "man bootparam" or see the documentation of
325 your boot loader about how to pass options to the kernel at
326 boot time.)
327
328config SERIAL_TEGRA
329 tristate "NVIDIA Tegra20/30 SoC serial controller"
330 depends on ARCH_TEGRA && TEGRA20_APB_DMA
331 select SERIAL_CORE
332 help
333 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
334 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not
335 provide all of these ports, depending on how the serial port
336 are enabled). This driver uses the APB DMA to achieve higher baudrate
337 and better performance.
338
339config SERIAL_TEGRA_TCU
340 tristate "NVIDIA Tegra Combined UART"
341 depends on ARCH_TEGRA && TEGRA_HSP_MBOX
342 select SERIAL_CORE
343 help
344 Support for the mailbox-based TCU (Tegra Combined UART) serial port.
345 TCU is a virtual serial port that allows multiplexing multiple data
346 streams into a single hardware serial port.
347
348config SERIAL_TEGRA_TCU_CONSOLE
349 bool "Support for console on a Tegra TCU serial port"
350 depends on SERIAL_TEGRA_TCU=y
351 select SERIAL_CORE_CONSOLE
352 default y
353 ---help---
354 If you say Y here, it will be possible to use a the Tegra TCU as the
355 system console (the system console is the device which receives all
356 kernel messages and warnings and which allows logins in single user
357 mode).
358
359 If unsure, say Y.
360
361config SERIAL_MAX3100
362 tristate "MAX3100 support"
363 depends on SPI
364 select SERIAL_CORE
365 help
366 MAX3100 chip support
367
368config SERIAL_MAX310X
369 tristate "MAX310X support"
370 depends on SPI_MASTER
371 select SERIAL_CORE
372 select REGMAP_SPI if SPI_MASTER
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_PXA
461 bool "PXA serial port support (DEPRECATED)"
462 depends on ARCH_PXA || ARCH_MMP
463 select SERIAL_CORE
464 select SERIAL_8250_PXA if SERIAL_8250=y
465 select SERIAL_PXA_NON8250 if !SERIAL_8250=y
466 help
467 If you have a machine based on an Intel XScale PXA2xx CPU you
468 can enable its onboard serial ports by enabling this option.
469
470 Unless you have a specific need, you should use SERIAL_8250_PXA
471 instead of this.
472
473config SERIAL_PXA_NON8250
474 bool
475 depends on !SERIAL_8250
476
477config SERIAL_PXA_CONSOLE
478 bool "Console on PXA serial port (DEPRECATED)"
479 depends on SERIAL_PXA
480 select SERIAL_CORE_CONSOLE
481 select SERIAL_8250_CONSOLE if SERIAL_8250=y
482 help
483 If you have enabled the serial port on the Intel XScale PXA
484 CPU you can make it the console by answering Y to this option.
485
486 Even if you say Y here, the currently visible virtual console
487 (/dev/tty0) will still be used as the system console by default, but
488 you can alter that using a kernel command line option such as
489 "console=ttySA0". (Try "man bootparam" or see the documentation of
490 your boot loader (lilo or loadlin) about how to pass options to the
491 kernel at boot time.)
492
493 Unless you have a specific need, you should use SERIAL_8250_PXA
494 and SERIAL_8250_CONSOLE instead of this.
495
496config SERIAL_SA1100
497 bool "SA1100 serial port support"
498 depends on ARCH_SA1100
499 select SERIAL_CORE
500 select SERIAL_MCTRL_GPIO if GPIOLIB
501 help
502 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
503 can enable its onboard serial port by enabling this option.
504 Please read <file:Documentation/arm/sa1100/serial_uart.rst> for further
505 info.
506
507config SERIAL_SA1100_CONSOLE
508 bool "Console on SA1100 serial port"
509 depends on SERIAL_SA1100
510 select SERIAL_CORE_CONSOLE
511 help
512 If you have enabled the serial port on the SA1100/SA1110 StrongARM
513 CPU you can make it the console by answering Y to this option.
514
515 Even if you say Y here, the currently visible virtual console
516 (/dev/tty0) will still be used as the system console by default, but
517 you can alter that using a kernel command line option such as
518 "console=ttySA0". (Try "man bootparam" or see the documentation of
519 your boot loader (lilo or loadlin) about how to pass options to the
520 kernel at boot time.)
521
522config SERIAL_IMX
523 tristate "IMX serial port support"
524 depends on ARCH_MXC || COMPILE_TEST
525 select SERIAL_CORE
526 select RATIONAL
527 select SERIAL_MCTRL_GPIO if GPIOLIB
528 help
529 If you have a machine based on a Motorola IMX CPU you
530 can enable its onboard serial port by enabling this option.
531
532config SERIAL_IMX_CONSOLE
533 bool "Console on IMX serial port"
534 depends on SERIAL_IMX=y
535 select SERIAL_CORE_CONSOLE
536 select SERIAL_EARLYCON if OF
537 help
538 If you have enabled the serial port on the Freescale IMX
539 CPU you can make it the console by answering Y to this option.
540
541 Even if you say Y here, the currently visible virtual console
542 (/dev/tty0) will still be used as the system console by default, but
543 you can alter that using a kernel command line option such as
544 "console=ttymxc0". (Try "man bootparam" or see the documentation of
545 your bootloader about how to pass options to the kernel at boot time.)
546
547config SERIAL_UARTLITE
548 tristate "Xilinx uartlite serial port support"
549 depends on HAS_IOMEM
550 select SERIAL_CORE
551 help
552 Say Y here if you want to use the Xilinx uartlite serial controller.
553
554 To compile this driver as a module, choose M here: the
555 module will be called uartlite.
556
557config SERIAL_UARTLITE_CONSOLE
558 bool "Support for console on Xilinx uartlite serial port"
559 depends on SERIAL_UARTLITE=y
560 select SERIAL_CORE_CONSOLE
561 select SERIAL_EARLYCON
562 help
563 Say Y here if you wish to use a Xilinx uartlite as the system
564 console (the system console is the device which receives all kernel
565 messages and warnings and which allows logins in single user mode).
566
567config SERIAL_UARTLITE_NR_UARTS
568 int "Maximum number of uartlite serial ports"
569 depends on SERIAL_UARTLITE
570 range 1 256
571 default 1
572 help
573 Set this to the number of uartlites in your system, or the number
574 you think you might implement.
575
576config SERIAL_SUNCORE
577 bool
578 depends on SPARC
579 select SERIAL_CORE
580 select SERIAL_CORE_CONSOLE
581 default y
582
583config SERIAL_SUNZILOG
584 tristate "Sun Zilog8530 serial support"
585 depends on SPARC
586 help
587 This driver supports the Zilog8530 serial ports found on many Sparc
588 systems. Say Y or M if you want to be able to these serial ports.
589
590config SERIAL_SUNZILOG_CONSOLE
591 bool "Console on Sun Zilog8530 serial port"
592 depends on SERIAL_SUNZILOG=y
593 help
594 If you would like to be able to use the Zilog8530 serial port
595 on your Sparc system as the console, you can do so by answering
596 Y to this option.
597
598config SERIAL_SUNSU
599 tristate "Sun SU serial support"
600 depends on SPARC && PCI
601 help
602 This driver supports the 8250 serial ports that run the keyboard and
603 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
604 to these serial ports.
605
606config SERIAL_SUNSU_CONSOLE
607 bool "Console on Sun SU serial port"
608 depends on SERIAL_SUNSU=y
609 help
610 If you would like to be able to use the SU serial port
611 on your Sparc system as the console, you can do so by answering
612 Y to this option.
613
614config SERIAL_MUX
615 tristate "Serial MUX support"
616 depends on GSC
617 select SERIAL_CORE
618 default y
619 ---help---
620 Saying Y here will enable the hardware MUX serial driver for
621 the Nova, K class systems and D class with a 'remote control card'.
622 The hardware MUX is not 8250/16550 compatible therefore the
623 /dev/ttyB0 device is shared between the Serial MUX and the PDC
624 software console. The following steps need to be completed to use
625 the Serial MUX:
626
627 1. create the device entry (mknod /dev/ttyB0 c 11 0)
628 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
629 3. Add device ttyB0 to /etc/securetty (if you want to log on as
630 root on this console.)
631 4. Change the kernel command console parameter to: console=ttyB0
632
633config SERIAL_MUX_CONSOLE
634 bool "Support for console on serial MUX"
635 depends on SERIAL_MUX=y
636 select SERIAL_CORE_CONSOLE
637 default y
638
639config PDC_CONSOLE
640 bool "PDC software console support"
641 depends on PARISC && !SERIAL_MUX && VT
642 help
643 Saying Y here will enable the software based PDC console to be
644 used as the system console. This is useful for machines in
645 which the hardware based console has not been written yet. The
646 following steps must be completed to use the PDC console:
647
648 1. create the device entry (mknod /dev/ttyB0 c 11 0)
649 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
650 3. Add device ttyB0 to /etc/securetty (if you want to log on as
651 root on this console.)
652 4. Change the kernel command console parameter to: console=ttyB0
653
654config SERIAL_SUNSAB
655 tristate "Sun Siemens SAB82532 serial support"
656 depends on SPARC && PCI
657 help
658 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
659 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
660 serial ports.
661
662config SERIAL_SUNSAB_CONSOLE
663 bool "Console on Sun Siemens SAB82532 serial port"
664 depends on SERIAL_SUNSAB=y
665 help
666 If you would like to be able to use the SAB82532 serial port
667 on your Sparc system as the console, you can do so by answering
668 Y to this option.
669
670config SERIAL_SUNHV
671 bool "Sun4v Hypervisor Console support"
672 depends on SPARC64
673 help
674 This driver supports the console device found on SUN4V Sparc
675 systems. Say Y if you want to be able to use this device.
676
677config SERIAL_IP22_ZILOG
678 tristate "SGI Zilog8530 serial support"
679 depends on SGI_HAS_ZILOG
680 select SERIAL_CORE
681 help
682 This driver supports the Zilog8530 serial ports found on SGI
683 systems. Say Y or M if you want to be able to these serial ports.
684
685config SERIAL_IP22_ZILOG_CONSOLE
686 bool "Console on SGI Zilog8530 serial port"
687 depends on SERIAL_IP22_ZILOG=y
688 select SERIAL_CORE_CONSOLE
689
690config SERIAL_SH_SCI
691 tristate "SuperH SCI(F) serial port support"
692 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
693 select SERIAL_CORE
694 select SERIAL_MCTRL_GPIO if GPIOLIB
695
696config SERIAL_SH_SCI_NR_UARTS
697 int "Maximum number of SCI(F) serial ports" if EXPERT
698 range 1 64 if 64BIT
699 range 1 32 if !64BIT
700 depends on SERIAL_SH_SCI
701 default "3" if H8300
702 default "10" if SUPERH
703 default "18" if ARCH_RENESAS
704 default "2"
705
706config SERIAL_SH_SCI_CONSOLE
707 bool "Support for console on SuperH SCI(F)" if EXPERT
708 depends on SERIAL_SH_SCI=y
709 select SERIAL_CORE_CONSOLE
710 default y
711
712config SERIAL_SH_SCI_EARLYCON
713 bool "Support for early console on SuperH SCI(F)" if EXPERT
714 depends on SERIAL_SH_SCI=y
715 select SERIAL_CORE_CONSOLE
716 select SERIAL_EARLYCON
717 default ARCH_RENESAS || H8300
718
719config SERIAL_SH_SCI_DMA
720 bool "DMA support" if EXPERT
721 depends on SERIAL_SH_SCI && DMA_ENGINE
722 default ARCH_RENESAS
723
724config SERIAL_PNX8XXX
725 bool "Enable PNX8XXX SoCs' UART Support"
726 depends on SOC_PNX833X
727 select SERIAL_CORE
728 help
729 If you have a MIPS-based Philips SoC such as PNX8330 and you want
730 to use serial ports, say Y. Otherwise, say N.
731
732config SERIAL_PNX8XXX_CONSOLE
733 bool "Enable PNX8XX0 serial console"
734 depends on SERIAL_PNX8XXX
735 select SERIAL_CORE_CONSOLE
736 help
737 If you have a MIPS-based Philips SoC such as PNX8330 and you want
738 to use serial console, say Y. Otherwise, say N.
739
740config SERIAL_HS_LPC32XX
741 tristate "LPC32XX high speed serial port support"
742 depends on ARCH_LPC32XX && OF
743 select SERIAL_CORE
744 help
745 Support for the LPC32XX high speed serial ports (up to 900kbps).
746 Those are UARTs completely different from the Standard UARTs on the
747 LPC32XX SoC.
748 Choose M or Y here to build this driver.
749
750config SERIAL_HS_LPC32XX_CONSOLE
751 bool "Enable LPC32XX high speed UART serial console"
752 depends on SERIAL_HS_LPC32XX=y
753 select SERIAL_CORE_CONSOLE
754 help
755 If you would like to be able to use one of the high speed serial
756 ports on the LPC32XX as the console, you can do so by answering
757 Y to this option.
758
759config SERIAL_CORE
760 tristate
761
762config SERIAL_CORE_CONSOLE
763 bool
764
765config CONSOLE_POLL
766 bool
767
768config SERIAL_MCF
769 bool "Coldfire serial support"
770 depends on COLDFIRE
771 select SERIAL_CORE
772 help
773 This serial driver supports the Freescale Coldfire serial ports.
774
775config SERIAL_MCF_BAUDRATE
776 int "Default baudrate for Coldfire serial ports"
777 depends on SERIAL_MCF
778 default 19200
779 help
780 This setting lets you define what the default baudrate is for the
781 ColdFire serial ports. The usual default varies from board to board,
782 and this setting is a way of catering for that.
783
784config SERIAL_MCF_CONSOLE
785 bool "Coldfire serial console support"
786 depends on SERIAL_MCF
787 select SERIAL_CORE_CONSOLE
788 help
789 Enable a ColdFire internal serial port to be the system console.
790
791config SERIAL_PMACZILOG
792 tristate "Mac or PowerMac z85c30 ESCC support"
793 depends on (M68K && MAC) || PPC_PMAC
794 select SERIAL_CORE
795 help
796 This driver supports the Zilog z85C30 serial ports found on
797 (Power)Mac machines.
798 Say Y or M if you want to be able to these serial ports.
799
800config SERIAL_PMACZILOG_TTYS
801 bool "Use ttySn device nodes for Zilog z85c30"
802 depends on SERIAL_PMACZILOG
803 help
804 The pmac_zilog driver for the z85C30 chip on many powermacs
805 historically used the device numbers for /dev/ttySn. The
806 8250 serial port driver also uses these numbers, which means
807 the two drivers being unable to coexist; you could not use
808 both z85C30 and 8250 type ports at the same time.
809
810 If this option is not selected, the pmac_zilog driver will
811 use the device numbers allocated for /dev/ttyPZn. This allows
812 the pmac_zilog and 8250 drivers to co-exist, but may cause
813 existing userspace setups to break. Programs that need to
814 access the built-in serial ports on powermacs will need to
815 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
816
817 If you enable this option, any z85c30 ports in the system will
818 be registered as ttyS0 onwards as in the past, and you will be
819 unable to use the 8250 module for PCMCIA or other 16C550-style
820 UARTs.
821
822 Say N unless you need the z85c30 ports on your (Power)Mac
823 to appear as /dev/ttySn.
824
825config SERIAL_PMACZILOG_CONSOLE
826 bool "Console on Mac or PowerMac z85c30 serial port"
827 depends on SERIAL_PMACZILOG=y
828 select SERIAL_CORE_CONSOLE
829 help
830 If you would like to be able to use the z85c30 serial port
831 on your (Power)Mac as the console, you can do so by answering
832 Y to this option.
833
834config SERIAL_CPM
835 tristate "CPM SCC/SMC serial port support"
836 depends on CPM2 || CPM1
837 select SERIAL_CORE
838 help
839 This driver supports the SCC and SMC serial ports on Motorola
840 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
841
842config SERIAL_CPM_CONSOLE
843 bool "Support for console on CPM SCC/SMC serial port"
844 depends on SERIAL_CPM=y
845 select SERIAL_CORE_CONSOLE
846 help
847 Say Y here if you wish to use a SCC or SMC CPM UART as the system
848 console (the system console is the device which receives all kernel
849 messages and warnings and which allows logins in single user mode).
850
851 Even if you say Y here, the currently visible framebuffer console
852 (/dev/tty0) will still be used as the system console by default, but
853 you can alter that using a kernel command line option such as
854 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
855 your boot loader (lilo or loadlin) about how to pass options to the
856 kernel at boot time.)
857
858config SERIAL_SGI_L1_CONSOLE
859 bool "SGI Altix L1 serial console support"
860 depends on IA64_GENERIC || IA64_SGI_SN2
861 select SERIAL_CORE
862 select SERIAL_CORE_CONSOLE
863 help
864 If you have an SGI Altix and you would like to use the system
865 controller serial port as your console (you want this!),
866 say Y. Otherwise, say N.
867
868config SERIAL_PIC32
869 tristate "Microchip PIC32 serial support"
870 depends on MACH_PIC32
871 select SERIAL_CORE
872 help
873 If you have a PIC32, this driver supports the serial ports.
874
875 Say Y or M to use PIC32 serial ports, otherwise say N. Note that
876 to use a serial port as a console, this must be included in kernel and
877 not as a module.
878
879config SERIAL_PIC32_CONSOLE
880 bool "PIC32 serial console support"
881 depends on SERIAL_PIC32
882 select SERIAL_CORE_CONSOLE
883 help
884 If you have a PIC32, this driver supports the putting a console on one
885 of the serial ports.
886
887 Say Y to use the PIC32 console, otherwise say N.
888
889config SERIAL_MPC52xx
890 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
891 depends on PPC_MPC52xx || PPC_MPC512x
892 select SERIAL_CORE
893 help
894 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
895 like to use them, you must answer Y or M to this option. Note that
896 for use as console, it must be included in kernel and not as a
897 module.
898
899config SERIAL_MPC52xx_CONSOLE
900 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
901 depends on SERIAL_MPC52xx=y
902 select SERIAL_CORE_CONSOLE
903 help
904 Select this options if you'd like to use one of the PSC serial port
905 of the Freescale MPC52xx family as a console.
906
907config SERIAL_MPC52xx_CONSOLE_BAUD
908 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
909 depends on SERIAL_MPC52xx_CONSOLE=y
910 default "9600"
911 help
912 Select the MPC52xx console baud rate.
913 This value is only used if the bootloader doesn't pass in the
914 console baudrate
915
916config SERIAL_ICOM
917 tristate "IBM Multiport Serial Adapter"
918 depends on PCI && PPC_PSERIES
919 select SERIAL_CORE
920 select FW_LOADER
921 help
922 This driver is for a family of multiport serial adapters
923 including 2 port RVX, 2 port internal modem, 4 port internal
924 modem and a split 1 port RVX and 1 port internal modem.
925
926 This driver can also be built as a module. If so, the module
927 will be called icom.
928
929config SERIAL_TXX9
930 bool "TMPTX39XX/49XX SIO support"
931 depends on HAS_TXX9_SERIAL
932 select SERIAL_CORE
933 default y
934
935config HAS_TXX9_SERIAL
936 bool
937
938config SERIAL_TXX9_NR_UARTS
939 int "Maximum number of TMPTX39XX/49XX SIO ports"
940 depends on SERIAL_TXX9
941 default "6"
942
943config SERIAL_TXX9_CONSOLE
944 bool "TMPTX39XX/49XX SIO Console support"
945 depends on SERIAL_TXX9=y
946 select SERIAL_CORE_CONSOLE
947
948config SERIAL_TXX9_STDSERIAL
949 bool "TX39XX/49XX SIO act as standard serial"
950 depends on !SERIAL_8250 && SERIAL_TXX9
951
952config SERIAL_VR41XX
953 tristate "NEC VR4100 series Serial Interface Unit support"
954 depends on CPU_VR41XX
955 select SERIAL_CORE
956 help
957 If you have a NEC VR4100 series processor and you want to use
958 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
959 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
960
961config SERIAL_VR41XX_CONSOLE
962 bool "Enable NEC VR4100 series Serial Interface Unit console"
963 depends on SERIAL_VR41XX=y
964 select SERIAL_CORE_CONSOLE
965 help
966 If you have a NEC VR4100 series processor and you want to use
967 a console on a serial port, say Y. Otherwise, say N.
968
969config SERIAL_JSM
970 tristate "Digi International NEO and Classic PCI Support"
971 depends on PCI
972 select SERIAL_CORE
973 help
974 This is a driver for Digi International's Neo and Classic series
975 of cards which provide multiple serial ports. You would need
976 something like this to connect more than two modems to your Linux
977 box, for instance in order to become a dial-in server. This driver
978 supports PCI boards only.
979
980 If you have a card like this, say Y here, otherwise say N.
981
982 To compile this driver as a module, choose M here: the
983 module will be called jsm.
984
985config SERIAL_SGI_IOC4
986 tristate "SGI IOC4 controller serial support"
987 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
988 select SERIAL_CORE
989 help
990 If you have an SGI Altix with an IOC4 based Base IO card
991 and wish to use the serial ports on this card, say Y.
992 Otherwise, say N.
993
994config SERIAL_SGI_IOC3
995 tristate "SGI Altix IOC3 serial support"
996 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
997 select SERIAL_CORE
998 help
999 If you have an SGI Altix with an IOC3 serial card,
1000 say Y or M. Otherwise, say N.
1001
1002config SERIAL_MSM
1003 tristate "MSM on-chip serial port support"
1004 depends on ARCH_QCOM
1005 select SERIAL_CORE
1006
1007config SERIAL_MSM_CONSOLE
1008 bool "MSM serial console support"
1009 depends on SERIAL_MSM=y
1010 select SERIAL_CORE_CONSOLE
1011 select SERIAL_EARLYCON
1012
1013config SERIAL_QCOM_GENI
1014 tristate "QCOM on-chip GENI based serial port support"
1015 depends on ARCH_QCOM || COMPILE_TEST
1016 depends on QCOM_GENI_SE
1017 select SERIAL_CORE
1018
1019config SERIAL_QCOM_GENI_CONSOLE
1020 bool "QCOM GENI Serial Console support"
1021 depends on SERIAL_QCOM_GENI=y
1022 select SERIAL_CORE_CONSOLE
1023 select SERIAL_EARLYCON
1024 help
1025 Serial console driver for Qualcomm Technologies Inc's GENI based
1026 QUP hardware.
1027
1028config SERIAL_VT8500
1029 bool "VIA VT8500 on-chip serial port support"
1030 depends on ARCH_VT8500
1031 select SERIAL_CORE
1032
1033config SERIAL_VT8500_CONSOLE
1034 bool "VIA VT8500 serial console support"
1035 depends on SERIAL_VT8500=y
1036 select SERIAL_CORE_CONSOLE
1037
1038config SERIAL_OMAP
1039 tristate "OMAP serial port support"
1040 depends on ARCH_OMAP2PLUS
1041 select SERIAL_CORE
1042 help
1043 If you have a machine based on an Texas Instruments OMAP CPU you
1044 can enable its onboard serial ports by enabling this option.
1045
1046 By enabling this option you take advantage of dma feature available
1047 with the omap-serial driver. DMA support can be enabled from platform
1048 data.
1049
1050config SERIAL_OMAP_CONSOLE
1051 bool "Console on OMAP serial port"
1052 depends on SERIAL_OMAP=y
1053 select SERIAL_CORE_CONSOLE
1054 help
1055 Select this option if you would like to use omap serial port as
1056 console.
1057
1058 Even if you say Y here, the currently visible virtual console
1059 (/dev/tty0) will still be used as the system console by default, but
1060 you can alter that using a kernel command line option such as
1061 "console=ttyOx". (Try "man bootparam" or see the documentation of
1062 your boot loader about how to pass options to the kernel at
1063 boot time.)
1064
1065config SERIAL_SIFIVE
1066 tristate "SiFive UART support"
1067 depends on OF
1068 select SERIAL_CORE
1069 help
1070 Select this option if you are building a kernel for a device that
1071 contains a SiFive UART IP block. This type of UART is present on
1072 SiFive FU540 SoCs, among others.
1073
1074config SERIAL_SIFIVE_CONSOLE
1075 bool "Console on SiFive UART"
1076 depends on SERIAL_SIFIVE=y
1077 select SERIAL_CORE_CONSOLE
1078 help
1079 Select this option if you would like to use a SiFive UART as the
1080 system console.
1081
1082 Even if you say Y here, the currently visible virtual console
1083 (/dev/tty0) will still be used as the system console by default, but
1084 you can alter that using a kernel command line option such as
1085 "console=ttySIFx". (Try "man bootparam" or see the documentation of
1086 your boot loader about how to pass options to the kernel at
1087 boot time.)
1088
1089config SERIAL_LANTIQ
1090 bool "Lantiq serial driver"
1091 depends on LANTIQ
1092 select SERIAL_CORE
1093 select SERIAL_CORE_CONSOLE
1094 select SERIAL_EARLYCON
1095 help
1096 Support for console and UART on Lantiq SoCs.
1097
1098config SERIAL_QE
1099 tristate "Freescale QUICC Engine serial port support"
1100 depends on QUICC_ENGINE
1101 select SERIAL_CORE
1102 select FW_LOADER
1103 help
1104 This driver supports the QE serial ports on Freescale embedded
1105 PowerPC that contain a QUICC Engine.
1106
1107config SERIAL_SCCNXP
1108 tristate "SCCNXP serial port support"
1109 select SERIAL_CORE
1110 help
1111 This selects support for an advanced UART from NXP (Philips).
1112 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1113 SC28L202, SCC68681 and SCC68692.
1114
1115config SERIAL_SCCNXP_CONSOLE
1116 bool "Console on SCCNXP serial port"
1117 depends on SERIAL_SCCNXP=y
1118 select SERIAL_CORE_CONSOLE
1119 help
1120 Support for console on SCCNXP serial ports.
1121
1122config SERIAL_SC16IS7XX_CORE
1123 tristate
1124
1125config SERIAL_SC16IS7XX
1126 tristate "SC16IS7xx serial support"
1127 select SERIAL_CORE
1128 depends on (SPI_MASTER && !I2C) || I2C
1129 help
1130 This selects support for SC16IS7xx serial ports.
1131 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1132 SC16IS760 and SC16IS762. Select supported buses using options below.
1133
1134config SERIAL_SC16IS7XX_I2C
1135 bool "SC16IS7xx for I2C interface"
1136 depends on SERIAL_SC16IS7XX
1137 depends on I2C
1138 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1139 select REGMAP_I2C if I2C
1140 default y
1141 help
1142 Enable SC16IS7xx driver on I2C bus,
1143 If required say y, and say n to i2c if not required,
1144 Enabled by default to support oldconfig.
1145 You must select at least one bus for the driver to be built.
1146
1147config SERIAL_SC16IS7XX_SPI
1148 bool "SC16IS7xx for spi interface"
1149 depends on SERIAL_SC16IS7XX
1150 depends on SPI_MASTER
1151 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1152 select REGMAP_SPI if SPI_MASTER
1153 help
1154 Enable SC16IS7xx driver on SPI bus,
1155 If required say y, and say n to spi if not required,
1156 This is additional support to exsisting driver.
1157 You must select at least one bus for the driver to be built.
1158
1159config SERIAL_TIMBERDALE
1160 tristate "Support for timberdale UART"
1161 select SERIAL_CORE
1162 depends on X86_32 || COMPILE_TEST
1163 ---help---
1164 Add support for UART controller on timberdale.
1165
1166config SERIAL_BCM63XX
1167 tristate "Broadcom BCM63xx/BCM33xx UART support"
1168 select SERIAL_CORE
1169 depends on MIPS || ARM || COMPILE_TEST
1170 help
1171 This enables the driver for the onchip UART core found on
1172 the following chipsets:
1173
1174 BCM33xx (cable modem)
1175 BCM63xx/BCM63xxx (DSL)
1176 BCM68xx (PON)
1177 BCM7xxx (STB) - DOCSIS console
1178
1179config SERIAL_BCM63XX_CONSOLE
1180 bool "Console on BCM63xx serial port"
1181 depends on SERIAL_BCM63XX=y
1182 select SERIAL_CORE_CONSOLE
1183 select SERIAL_EARLYCON
1184 help
1185 If you have enabled the serial port on the BCM63xx CPU
1186 you can make it the console by answering Y to this option.
1187
1188config SERIAL_GRLIB_GAISLER_APBUART
1189 tristate "GRLIB APBUART serial support"
1190 depends on OF && SPARC
1191 select SERIAL_CORE
1192 ---help---
1193 Add support for the GRLIB APBUART serial port.
1194
1195config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1196 bool "Console on GRLIB APBUART serial port"
1197 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1198 select SERIAL_CORE_CONSOLE
1199 help
1200 Support for running a console on the GRLIB APBUART
1201
1202config SERIAL_ALTERA_JTAGUART
1203 tristate "Altera JTAG UART support"
1204 select SERIAL_CORE
1205 help
1206 This driver supports the Altera JTAG UART port.
1207
1208config SERIAL_ALTERA_JTAGUART_CONSOLE
1209 bool "Altera JTAG UART console support"
1210 depends on SERIAL_ALTERA_JTAGUART=y
1211 select SERIAL_CORE_CONSOLE
1212 select SERIAL_EARLYCON
1213 help
1214 Enable a Altera JTAG UART port to be the system console.
1215
1216config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1217 bool "Bypass output when no connection"
1218 depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1219 select SERIAL_CORE_CONSOLE
1220 help
1221 Bypass console output and keep going even if there is no
1222 JTAG terminal connection with the host.
1223
1224config SERIAL_ALTERA_UART
1225 tristate "Altera UART support"
1226 select SERIAL_CORE
1227 help
1228 This driver supports the Altera softcore UART port.
1229
1230config SERIAL_ALTERA_UART_MAXPORTS
1231 int "Maximum number of Altera UART ports"
1232 depends on SERIAL_ALTERA_UART
1233 default 4
1234 help
1235 This setting lets you define the maximum number of the Altera
1236 UART ports. The usual default varies from board to board, and
1237 this setting is a way of catering for that.
1238
1239config SERIAL_ALTERA_UART_BAUDRATE
1240 int "Default baudrate for Altera UART ports"
1241 depends on SERIAL_ALTERA_UART
1242 default 115200
1243 help
1244 This setting lets you define what the default baudrate is for the
1245 Altera UART ports. The usual default varies from board to board,
1246 and this setting is a way of catering for that.
1247
1248config SERIAL_ALTERA_UART_CONSOLE
1249 bool "Altera UART console support"
1250 depends on SERIAL_ALTERA_UART=y
1251 select SERIAL_CORE_CONSOLE
1252 select SERIAL_EARLYCON
1253 help
1254 Enable a Altera UART port to be the system console.
1255
1256config SERIAL_IFX6X60
1257 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1258 depends on GPIOLIB || COMPILE_TEST
1259 depends on SPI && HAS_DMA
1260 help
1261 Support for the IFX6x60 modem devices on Intel MID platforms.
1262
1263config SERIAL_PCH_UART
1264 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1265 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
1266 select SERIAL_CORE
1267 help
1268 This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1269 which is an IOH(Input/Output Hub) for x86 embedded processor.
1270 Enabling PCH_DMA, this PCH UART works as DMA mode.
1271
1272 This driver also can be used for LAPIS Semiconductor IOH(Input/
1273 Output Hub), ML7213, ML7223 and ML7831.
1274 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1275 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1276 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1277 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1278
1279config SERIAL_PCH_UART_CONSOLE
1280 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1281 depends on SERIAL_PCH_UART=y
1282 select SERIAL_CORE_CONSOLE
1283 help
1284 Say Y here if you wish to use the PCH UART as the system console
1285 (the system console is the device which receives all kernel messages and
1286 warnings and which allows logins in single user mode).
1287
1288config SERIAL_MXS_AUART
1289 tristate "MXS AUART support"
1290 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1291 select SERIAL_CORE
1292 select SERIAL_MCTRL_GPIO if GPIOLIB
1293 help
1294 This driver supports the MXS and Alphascale ASM9260 Application
1295 UART (AUART) port.
1296
1297config SERIAL_MXS_AUART_CONSOLE
1298 bool "MXS AUART console support"
1299 depends on SERIAL_MXS_AUART=y
1300 select SERIAL_CORE_CONSOLE
1301 help
1302 Enable a MXS AUART port to be the system console.
1303
1304config SERIAL_XILINX_PS_UART
1305 tristate "Cadence (Xilinx Zynq) UART support"
1306 depends on OF
1307 select SERIAL_CORE
1308 help
1309 This driver supports the Cadence UART. It is found e.g. in Xilinx
1310 Zynq.
1311
1312config SERIAL_XILINX_PS_UART_CONSOLE
1313 bool "Cadence UART console support"
1314 depends on SERIAL_XILINX_PS_UART=y
1315 select SERIAL_CORE_CONSOLE
1316 select SERIAL_EARLYCON
1317 help
1318 Enable a Cadence UART port to be the system console.
1319
1320config SERIAL_AR933X
1321 tristate "AR933X serial port support"
1322 depends on HAVE_CLK && ATH79
1323 select SERIAL_CORE
1324 help
1325 If you have an Atheros AR933X SOC based board and want to use the
1326 built-in UART of the SoC, say Y to this option.
1327
1328 To compile this driver as a module, choose M here: the
1329 module will be called ar933x_uart.
1330
1331config SERIAL_AR933X_CONSOLE
1332 bool "Console on AR933X serial port"
1333 depends on SERIAL_AR933X=y
1334 select SERIAL_CORE_CONSOLE
1335 help
1336 Enable a built-in UART port of the AR933X to be the system console.
1337
1338config SERIAL_AR933X_NR_UARTS
1339 int "Maximum number of AR933X serial ports"
1340 depends on SERIAL_AR933X
1341 default "2"
1342 help
1343 Set this to the number of serial ports you want the driver
1344 to support.
1345
1346config SERIAL_EFM32_UART
1347 tristate "EFM32 UART/USART port"
1348 depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1349 select SERIAL_CORE
1350 help
1351 This driver support the USART and UART ports on
1352 Energy Micro's efm32 SoCs.
1353
1354config SERIAL_MPS2_UART_CONSOLE
1355 bool "MPS2 UART console support"
1356 depends on SERIAL_MPS2_UART
1357 select SERIAL_CORE_CONSOLE
1358 select SERIAL_EARLYCON
1359
1360config SERIAL_MPS2_UART
1361 bool "MPS2 UART port"
1362 depends on ARCH_MPS2 || COMPILE_TEST
1363 select SERIAL_CORE
1364 help
1365 This driver support the UART ports on ARM MPS2.
1366
1367config SERIAL_EFM32_UART_CONSOLE
1368 bool "EFM32 UART/USART console support"
1369 depends on SERIAL_EFM32_UART=y
1370 select SERIAL_CORE_CONSOLE
1371
1372config SERIAL_ARC
1373 tristate "ARC UART driver support"
1374 select SERIAL_CORE
1375 help
1376 Driver for on-chip UART for ARC(Synopsys) for the legacy
1377 FPGA Boards (ML50x/ARCAngel4)
1378
1379config SERIAL_ARC_CONSOLE
1380 bool "Console on ARC UART"
1381 depends on SERIAL_ARC=y
1382 select SERIAL_CORE_CONSOLE
1383 select SERIAL_EARLYCON
1384 help
1385 Enable system Console on ARC UART
1386
1387config SERIAL_ARC_NR_PORTS
1388 int "Number of ARC UART ports"
1389 depends on SERIAL_ARC
1390 range 1 3
1391 default "1"
1392 help
1393 Set this to the number of serial ports you want the driver
1394 to support.
1395
1396config SERIAL_RP2
1397 tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1398 depends on PCI
1399 select SERIAL_CORE
1400 help
1401 This driver supports the Comtrol RocketPort EXPRESS and
1402 RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1403 These adapters use a "RocketPort 2" ASIC that is not compatible
1404 with the original RocketPort driver (CONFIG_ROCKETPORT).
1405
1406 To compile this driver as a module, choose M here: the
1407 module will be called rp2.
1408
1409 If you want to compile this driver into the kernel, say Y here. If
1410 you don't have a suitable RocketPort card installed, say N.
1411
1412config SERIAL_RP2_NR_UARTS
1413 int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1414 depends on SERIAL_RP2
1415 default "32"
1416 help
1417 If multiple cards are present, the default limit of 32 ports may
1418 need to be increased.
1419
1420config SERIAL_FSL_LPUART
1421 tristate "Freescale lpuart serial port support"
1422 depends on HAS_DMA
1423 select SERIAL_CORE
1424 help
1425 Support for the on-chip lpuart on some Freescale SOCs.
1426
1427config SERIAL_FSL_LPUART_CONSOLE
1428 bool "Console on Freescale lpuart serial port"
1429 depends on SERIAL_FSL_LPUART=y
1430 select SERIAL_CORE_CONSOLE
1431 select SERIAL_EARLYCON
1432 help
1433 If you have enabled the lpuart serial port on the Freescale SoCs,
1434 you can make it the console by answering Y to this option.
1435
1436config SERIAL_CONEXANT_DIGICOLOR
1437 tristate "Conexant Digicolor CX92xxx USART serial port support"
1438 depends on OF
1439 select SERIAL_CORE
1440 help
1441 Support for the on-chip USART on Conexant Digicolor SoCs.
1442
1443config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1444 bool "Console on Conexant Digicolor serial port"
1445 depends on SERIAL_CONEXANT_DIGICOLOR=y
1446 select SERIAL_CORE_CONSOLE
1447 help
1448 If you have enabled the USART serial port on Conexant Digicolor
1449 SoCs, you can make it the console by answering Y to this option.
1450
1451config SERIAL_ST_ASC
1452 tristate "ST ASC serial port support"
1453 select SERIAL_CORE
1454 depends on ARM || COMPILE_TEST
1455 help
1456 This driver is for the on-chip Asychronous Serial Controller on
1457 STMicroelectronics STi SoCs.
1458 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1459 It support all industry standard baud rates.
1460
1461 If unsure, say N.
1462
1463config SERIAL_ST_ASC_CONSOLE
1464 bool "Support for console on ST ASC"
1465 depends on SERIAL_ST_ASC=y
1466 select SERIAL_CORE_CONSOLE
1467
1468config SERIAL_MEN_Z135
1469 tristate "MEN 16z135 Support"
1470 select SERIAL_CORE
1471 depends on MCB
1472 help
1473 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1474 on a MCB carrier.
1475
1476 This driver can also be build as a module. If so, the module will be called
1477 men_z135_uart.ko
1478
1479config SERIAL_SPRD
1480 tristate "Support for Spreadtrum serial"
1481 depends on ARCH_SPRD
1482 select SERIAL_CORE
1483 help
1484 This enables the driver for the Spreadtrum's serial.
1485
1486config SERIAL_SPRD_CONSOLE
1487 bool "Spreadtrum UART console support"
1488 depends on SERIAL_SPRD=y
1489 select SERIAL_CORE_CONSOLE
1490 select SERIAL_EARLYCON
1491 help
1492 Support for early debug console using Spreadtrum's serial. This enables
1493 the console before standard serial driver is probed. This is enabled
1494 with "earlycon" on the kernel command line. The console is
1495 enabled when early_param is processed.
1496
1497config SERIAL_STM32
1498 tristate "STMicroelectronics STM32 serial port support"
1499 select SERIAL_CORE
1500 depends on ARCH_STM32 || COMPILE_TEST
1501 help
1502 This driver is for the on-chip Serial Controller on
1503 STMicroelectronics STM32 MCUs.
1504 USART supports Rx & Tx functionality.
1505 It support all industry standard baud rates.
1506
1507 If unsure, say N.
1508
1509config SERIAL_STM32_CONSOLE
1510 bool "Support for console on STM32"
1511 depends on SERIAL_STM32=y
1512 select SERIAL_CORE_CONSOLE
1513
1514config SERIAL_MVEBU_UART
1515 bool "Marvell EBU serial port support"
1516 depends on ARCH_MVEBU || COMPILE_TEST
1517 select SERIAL_CORE
1518 help
1519 This driver is for Marvell EBU SoC's UART. If you have a machine
1520 based on the Armada-3700 SoC and wish to use the on-board serial
1521 port,
1522 say 'Y' here.
1523 Otherwise, say 'N'.
1524
1525config SERIAL_MVEBU_CONSOLE
1526 bool "Console on Marvell EBU serial port"
1527 depends on SERIAL_MVEBU_UART
1528 select SERIAL_CORE_CONSOLE
1529 select SERIAL_EARLYCON
1530 default y
1531 help
1532 Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1533 (the system console is the device which receives all kernel messages
1534 and warnings and which allows logins in single user mode)
1535 Otherwise, say 'N'.
1536
1537config SERIAL_OWL
1538 tristate "Actions Semi Owl serial port support"
1539 depends on ARCH_ACTIONS || COMPILE_TEST
1540 select SERIAL_CORE
1541 help
1542 This driver is for Actions Semiconductor S500/S900 SoC's UART.
1543 Say 'Y' here if you wish to use the on-board serial port.
1544 Otherwise, say 'N'.
1545
1546config SERIAL_OWL_CONSOLE
1547 bool "Console on Actions Semi Owl serial port"
1548 depends on SERIAL_OWL=y
1549 select SERIAL_CORE_CONSOLE
1550 select SERIAL_EARLYCON
1551 default y
1552 help
1553 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART
1554 as the system console.
1555
1556config SERIAL_RDA
1557 bool "RDA Micro serial port support"
1558 depends on ARCH_RDA || COMPILE_TEST
1559 select SERIAL_CORE
1560 help
1561 This driver is for RDA8810PL SoC's UART.
1562 Say 'Y' here if you wish to use the on-board serial port.
1563 Otherwise, say 'N'.
1564
1565config SERIAL_RDA_CONSOLE
1566 bool "Console on RDA Micro serial port"
1567 depends on SERIAL_RDA=y
1568 select SERIAL_CORE_CONSOLE
1569 select SERIAL_EARLYCON
1570 default y
1571 help
1572 Say 'Y' here if you wish to use the RDA8810PL UART as the system
1573 console. Only earlycon is implemented currently.
1574
1575config SERIAL_MILBEAUT_USIO
1576 tristate "Milbeaut USIO/UART serial port support"
1577 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF)
1578 default ARCH_MILBEAUT
1579 select SERIAL_CORE
1580 help
1581 This selects the USIO/UART IP found in Socionext Milbeaut SoCs.
1582
1583config SERIAL_MILBEAUT_USIO_PORTS
1584 int "Maximum number of CSIO/UART ports (1-8)"
1585 range 1 8
1586 depends on SERIAL_MILBEAUT_USIO
1587 default "4"
1588
1589config SERIAL_MILBEAUT_USIO_CONSOLE
1590 bool "Support for console on MILBEAUT USIO/UART serial port"
1591 depends on SERIAL_MILBEAUT_USIO=y
1592 default y
1593 select SERIAL_CORE_CONSOLE
1594 select SERIAL_EARLYCON
1595 help
1596 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut
1597 SoCs as the system console (the system console is the device which
1598 receives all kernel messages and warnings and which allows logins in
1599 single user mode).
1600
1601endmenu
1602
1603config SERIAL_MCTRL_GPIO
1604 tristate
1605
1606endif # TTY