xref: /openbmc/linux/drivers/tty/serial/Kconfig (revision 8730046c)
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_SB1250_DUART
89	tristate "BCM1xxx on-chip DUART serial support"
90	depends on SIBYTE_SB1xxx_SOC=y
91	select SERIAL_CORE
92	default y
93	---help---
94	  Support for the asynchronous serial interface (DUART) included in
95	  the BCM1250 and derived System-On-a-Chip (SOC) devices.  Note that
96	  the letter D in DUART stands for "dual", which is how the device
97	  is implemented.  Depending on the SOC configuration there may be
98	  one or more DUARTs available of which all are handled.
99
100	  If unsure, say Y.  To compile this driver as a module, choose M here:
101	  the module will be called sb1250-duart.
102
103config SERIAL_SB1250_DUART_CONSOLE
104	bool "Support for console on a BCM1xxx DUART serial port"
105	depends on SERIAL_SB1250_DUART=y
106	select SERIAL_CORE_CONSOLE
107	default y
108	---help---
109	  If you say Y here, it will be possible to use a serial port as the
110	  system console (the system console is the device which receives all
111	  kernel messages and warnings and which allows logins in single user
112	  mode).
113
114	  If unsure, say Y.
115
116config SERIAL_ATMEL
117	bool "AT91 / AT32 on-chip serial port support"
118	depends on HAS_DMA
119	depends on ARCH_AT91 || AVR32 || COMPILE_TEST
120	select SERIAL_CORE
121	select SERIAL_MCTRL_GPIO if GPIOLIB
122	help
123	  This enables the driver for the on-chip UARTs of the Atmel
124	  AT91 and AT32 processors.
125
126config SERIAL_ATMEL_CONSOLE
127	bool "Support for console on AT91 / AT32 serial port"
128	depends on SERIAL_ATMEL=y
129	select SERIAL_CORE_CONSOLE
130	help
131	  Say Y here if you wish to use an on-chip UART on a Atmel
132	  AT91 or AT32 processor as the system console (the system
133	  console is the device which receives all kernel messages and
134	  warnings and which allows logins in single user mode).
135
136config SERIAL_ATMEL_PDC
137	bool "Support DMA transfers on AT91 / AT32 serial port"
138	depends on SERIAL_ATMEL
139	default y
140	help
141	  Say Y here if you wish to use the PDC to do DMA transfers to
142	  and from the Atmel AT91 / AT32 serial port. In order to
143	  actually use DMA transfers, make sure that the use_dma_tx
144	  and use_dma_rx members in the atmel_uart_data struct is set
145	  appropriately for each port.
146
147	  Note that break and error handling currently doesn't work
148	  properly when DMA is enabled. Make sure that ports where
149	  this matters don't use DMA.
150
151config SERIAL_ATMEL_TTYAT
152	bool "Install as device ttyATn instead of ttySn"
153	depends on SERIAL_ATMEL=y
154	help
155	  Say Y here if you wish to have the internal AT91 / AT32 UARTs
156	  appear as /dev/ttyATn (major 204, minor starting at 154)
157	  instead of the normal /dev/ttySn (major 4, minor starting at
158	  64). This is necessary if you also want other UARTs, such as
159	  external 8250/16C550 compatible UARTs.
160	  The ttySn nodes are legally reserved for the 8250 serial driver
161	  but are often misused by other serial drivers.
162
163	  To use this, you should create suitable ttyATn device nodes in
164	  /dev/, and pass "console=ttyATn" to the kernel.
165
166	  Say Y if you have an external 8250/16C550 UART.  If unsure, say N.
167
168config SERIAL_KGDB_NMI
169	bool "Serial console over KGDB NMI debugger port"
170	depends on KGDB_SERIAL_CONSOLE
171	help
172	  This special driver allows you to temporary use NMI debugger port
173	  as a normal console (assuming that the port is attached to KGDB).
174
175	  Unlike KDB's disable_nmi command, with this driver you are always
176	  able to go back to the debugger using KGDB escape sequence ($3#33).
177	  This is because this console driver processes the input in NMI
178	  context, and thus is able to intercept the magic sequence.
179
180	  Note that since the console interprets input and uses polling
181	  communication methods, for things like PPP you still must fully
182	  detach debugger port from the KGDB NMI (i.e. disable_nmi), and
183	  use raw console.
184
185	  If unsure, say N.
186
187config SERIAL_KS8695
188	bool "Micrel KS8695 (Centaur) serial port support"
189	depends on ARCH_KS8695
190	select SERIAL_CORE
191	help
192	  This selects the Micrel Centaur KS8695 UART.  Say Y here.
193
194config SERIAL_KS8695_CONSOLE
195	bool "Support for console on KS8695 (Centaur) serial port"
196	depends on SERIAL_KS8695=y
197	select SERIAL_CORE_CONSOLE
198	help
199	  Say Y here if you wish to use a KS8695 (Centaur) UART as the
200	  system console (the system console is the device which
201	  receives all kernel messages and warnings and which allows
202	  logins in single user mode).
203
204config SERIAL_MESON
205	tristate "Meson serial port support"
206	depends on ARCH_MESON
207	select SERIAL_CORE
208	help
209	  This enables the driver for the on-chip UARTs of the Amlogic
210	  MesonX processors.
211
212config SERIAL_MESON_CONSOLE
213	bool "Support for console on meson"
214	depends on SERIAL_MESON=y
215	select SERIAL_CORE_CONSOLE
216	select SERIAL_EARLYCON
217	help
218	  Say Y here if you wish to use a Amlogic MesonX UART as the
219	  system console (the system console is the device which
220	  receives all kernel messages and warnings and which allows
221	  logins in single user mode) as /dev/ttyAMLx.
222
223config SERIAL_CLPS711X
224	tristate "CLPS711X serial port support"
225	depends on ARCH_CLPS711X || COMPILE_TEST
226	select SERIAL_CORE
227	select SERIAL_MCTRL_GPIO if GPIOLIB
228	help
229	  This enables the driver for the on-chip UARTs of the Cirrus
230	  Logic EP711x/EP721x/EP731x processors.
231
232config SERIAL_CLPS711X_CONSOLE
233	bool "Support for console on CLPS711X serial port"
234	depends on SERIAL_CLPS711X=y
235	select SERIAL_CORE_CONSOLE
236	help
237	  Even if you say Y here, the currently visible virtual console
238	  (/dev/tty0) will still be used as the system console by default, but
239	  you can alter that using a kernel command line option such as
240	  "console=ttyCL1".
241
242config SERIAL_SAMSUNG
243	tristate "Samsung SoC serial support"
244	depends on PLAT_SAMSUNG || ARCH_EXYNOS
245	select SERIAL_CORE
246	help
247	  Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
248	  providing /dev/ttySAC0, 1 and 2 (note, some machines may not
249	  provide all of these ports, depending on how the serial port
250	  pins are configured.
251
252config SERIAL_SAMSUNG_UARTS_4
253	bool
254	depends on SERIAL_SAMSUNG
255	default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
256	help
257	  Internal node for the common case of 4 Samsung compatible UARTs
258
259config SERIAL_SAMSUNG_UARTS
260	int
261	depends on SERIAL_SAMSUNG
262	default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
263	default 3
264	help
265	  Select the number of available UART ports for the Samsung S3C
266	  serial driver
267
268config SERIAL_SAMSUNG_DEBUG
269	bool "Samsung SoC serial debug"
270	depends on SERIAL_SAMSUNG && DEBUG_LL
271	help
272	  Add support for debugging the serial driver. Since this is
273	  generally being used as a console, we use our own output
274	  routines that go via the low-level debug printascii()
275	  function.
276
277config SERIAL_SAMSUNG_CONSOLE
278	bool "Support for console on Samsung SoC serial port"
279	depends on SERIAL_SAMSUNG=y
280	select SERIAL_CORE_CONSOLE
281	select SERIAL_EARLYCON
282	help
283	  Allow selection of the S3C24XX on-board serial ports for use as
284	  an virtual console.
285
286	  Even if you say Y here, the currently visible virtual console
287	  (/dev/tty0) will still be used as the system console by default, but
288	  you can alter that using a kernel command line option such as
289	  "console=ttySACx". (Try "man bootparam" or see the documentation of
290	  your boot loader about how to pass options to the kernel at
291	  boot time.)
292
293config SERIAL_SIRFSOC
294        tristate "SiRF SoC Platform Serial port support"
295        depends on ARCH_SIRF
296        select SERIAL_CORE
297        help
298          Support for the on-chip UART on the CSR SiRFprimaII series,
299          providing /dev/ttySiRF0, 1 and 2 (note, some machines may not
300          provide all of these ports, depending on how the serial port
301          pins are configured).
302
303config SERIAL_SIRFSOC_CONSOLE
304        bool "Support for console on SiRF SoC serial port"
305        depends on SERIAL_SIRFSOC=y
306        select SERIAL_CORE_CONSOLE
307        help
308          Even if you say Y here, the currently visible virtual console
309          (/dev/tty0) will still be used as the system console by default, but
310          you can alter that using a kernel command line option such as
311          "console=ttySiRFx". (Try "man bootparam" or see the documentation of
312          your boot loader about how to pass options to the kernel at
313          boot time.)
314
315config SERIAL_TEGRA
316	tristate "NVIDIA Tegra20/30 SoC serial controller"
317	depends on ARCH_TEGRA && TEGRA20_APB_DMA
318	select SERIAL_CORE
319	help
320	  Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
321	  providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not
322	  provide all of these ports, depending on how the serial port
323	  are enabled). This driver uses the APB DMA to achieve higher baudrate
324	  and better performance.
325
326config SERIAL_MAX3100
327	tristate "MAX3100 support"
328	depends on SPI
329	select SERIAL_CORE
330	help
331	  MAX3100 chip support
332
333config SERIAL_MAX310X
334	tristate "MAX310X support"
335	depends on SPI_MASTER
336	select SERIAL_CORE
337	select REGMAP_SPI if SPI_MASTER
338	default n
339	help
340	  This selects support for an advanced UART from Maxim (Dallas).
341	  Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830.
342	  Each IC contains 128 words each of receive and transmit FIFO
343	  that can be controlled through I2C or high-speed SPI.
344
345	  Say Y here if you want to support this ICs.
346
347config SERIAL_DZ
348	bool "DECstation DZ serial driver"
349	depends on MACH_DECSTATION && 32BIT
350	select SERIAL_CORE
351	default y
352	---help---
353	  DZ11-family serial controllers for DECstations and VAXstations,
354	  including the DC7085, M7814, and M7819.
355
356config SERIAL_DZ_CONSOLE
357	bool "Support console on DECstation DZ serial driver"
358	depends on SERIAL_DZ=y
359	select SERIAL_CORE_CONSOLE
360	default y
361	---help---
362	  If you say Y here, it will be possible to use a serial port as the
363	  system console (the system console is the device which receives all
364	  kernel messages and warnings and which allows logins in single user
365	  mode).
366
367	  Note that the firmware uses ttyS3 as the serial console on
368	  DECstations that use this driver.
369
370	  If unsure, say Y.
371
372config SERIAL_ZS
373	tristate "DECstation Z85C30 serial support"
374	depends on MACH_DECSTATION
375	select SERIAL_CORE
376	default y
377	---help---
378	  Support for the Zilog 85C350 serial communications controller used
379	  for serial ports in newer DECstation systems.  These include the
380	  DECsystem 5900 and all models of the DECstation and DECsystem 5000
381	  systems except from model 200.
382
383	  If unsure, say Y.  To compile this driver as a module, choose M here:
384	  the module will be called zs.
385
386config SERIAL_ZS_CONSOLE
387	bool "Support for console on a DECstation Z85C30 serial port"
388	depends on SERIAL_ZS=y
389	select SERIAL_CORE_CONSOLE
390	default y
391	---help---
392	  If you say Y here, it will be possible to use a serial port as the
393	  system console (the system console is the device which receives all
394	  kernel messages and warnings and which allows logins in single user
395	  mode).
396
397	  Note that the firmware uses ttyS1 as the serial console on the
398	  Maxine and ttyS3 on the others using this driver.
399
400	  If unsure, say Y.
401
402config SERIAL_21285
403	tristate "DC21285 serial port support"
404	depends on FOOTBRIDGE
405	select SERIAL_CORE
406	help
407	  If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
408	  PCI bridge you can enable its onboard serial port by enabling this
409	  option.
410
411config SERIAL_21285_CONSOLE
412	bool "Console on DC21285 serial port"
413	depends on SERIAL_21285=y
414	select SERIAL_CORE_CONSOLE
415	help
416	  If you have enabled the serial port on the 21285 footbridge you can
417	  make it the console by answering Y to this option.
418
419	  Even if you say Y here, the currently visible virtual console
420	  (/dev/tty0) will still be used as the system console by default, but
421	  you can alter that using a kernel command line option such as
422	  "console=ttyFB". (Try "man bootparam" or see the documentation of
423	  your boot loader (lilo or loadlin) about how to pass options to the
424	  kernel at boot time.)
425
426config SERIAL_MPSC
427	bool "Marvell MPSC serial port support"
428	depends on MV64X60
429	select SERIAL_CORE
430	help
431	  Say Y here if you want to use the Marvell MPSC serial controller.
432
433config SERIAL_MPSC_CONSOLE
434	bool "Support for console on Marvell MPSC serial port"
435	depends on SERIAL_MPSC
436	select SERIAL_CORE_CONSOLE
437	help
438	  Say Y here if you want to support a serial console on a Marvell MPSC.
439
440config SERIAL_PXA
441	bool "PXA serial port support (DEPRECATED)"
442	depends on ARCH_PXA || ARCH_MMP
443	select SERIAL_CORE
444	select SERIAL_8250_PXA if SERIAL_8250=y
445	select SERIAL_PXA_NON8250 if !SERIAL_8250=y
446	help
447	  If you have a machine based on an Intel XScale PXA2xx CPU you
448	  can enable its onboard serial ports by enabling this option.
449
450	  Unless you have a specific need, you should use SERIAL_8250_PXA
451	  instead of this.
452
453config SERIAL_PXA_NON8250
454	bool
455	depends on !SERIAL_8250
456
457config SERIAL_PXA_CONSOLE
458	bool "Console on PXA serial port (DEPRECATED)"
459	depends on SERIAL_PXA
460	select SERIAL_CORE_CONSOLE
461	select SERIAL_8250_CONSOLE if SERIAL_8250=y
462	help
463	  If you have enabled the serial port on the Intel XScale PXA
464	  CPU you can make it the console by answering Y to this option.
465
466	  Even if you say Y here, the currently visible virtual console
467	  (/dev/tty0) will still be used as the system console by default, but
468	  you can alter that using a kernel command line option such as
469	  "console=ttySA0". (Try "man bootparam" or see the documentation of
470	  your boot loader (lilo or loadlin) about how to pass options to the
471	  kernel at boot time.)
472
473	  Unless you have a specific need, you should use SERIAL_8250_PXA
474	  and SERIAL_8250_CONSOLE instead of this.
475
476config SERIAL_SA1100
477	bool "SA1100 serial port support"
478	depends on ARCH_SA1100
479	select SERIAL_CORE
480	help
481	  If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
482	  can enable its onboard serial port by enabling this option.
483	  Please read <file:Documentation/arm/SA1100/serial_UART> for further
484	  info.
485
486config SERIAL_SA1100_CONSOLE
487	bool "Console on SA1100 serial port"
488	depends on SERIAL_SA1100
489	select SERIAL_CORE_CONSOLE
490	help
491	  If you have enabled the serial port on the SA1100/SA1110 StrongARM
492	  CPU you can make it the console by answering Y to this option.
493
494	  Even if you say Y here, the currently visible virtual console
495	  (/dev/tty0) will still be used as the system console by default, but
496	  you can alter that using a kernel command line option such as
497	  "console=ttySA0". (Try "man bootparam" or see the documentation of
498	  your boot loader (lilo or loadlin) about how to pass options to the
499	  kernel at boot time.)
500
501config SERIAL_BFIN
502	tristate "Blackfin serial port support"
503	depends on BLACKFIN
504	select SERIAL_CORE
505	select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
506	help
507	  Add support for the built-in UARTs on the Blackfin.
508
509	  To compile this driver as a module, choose M here: the
510	  module is named bfin_uart.ko.
511
512config SERIAL_BFIN_CONSOLE
513	bool "Console on Blackfin serial port"
514	depends on SERIAL_BFIN=y
515	select SERIAL_CORE_CONSOLE
516
517choice
518	prompt "UART Mode"
519	depends on SERIAL_BFIN
520	default SERIAL_BFIN_DMA
521	help
522	  This driver supports the built-in serial ports of the Blackfin family
523	  of CPUs
524
525config SERIAL_BFIN_DMA
526	bool "DMA mode"
527	depends on !DMA_UNCACHED_NONE && KGDB_SERIAL_CONSOLE=n
528	help
529	  This driver works under DMA mode. If this option is selected, the
530	  blackfin simple dma driver is also enabled.
531
532config SERIAL_BFIN_PIO
533	bool "PIO mode"
534	help
535	  This driver works under PIO mode.
536
537endchoice
538
539config SERIAL_BFIN_UART0
540	bool "Enable UART0"
541	depends on SERIAL_BFIN
542	help
543	  Enable UART0
544
545config BFIN_UART0_CTSRTS
546	bool "Enable UART0 hardware flow control"
547	depends on SERIAL_BFIN_UART0
548	help
549	  Enable hardware flow control in the driver.
550
551config SERIAL_BFIN_UART1
552	bool "Enable UART1"
553	depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
554	help
555	  Enable UART1
556
557config BFIN_UART1_CTSRTS
558	bool "Enable UART1 hardware flow control"
559	depends on SERIAL_BFIN_UART1
560	help
561	  Enable hardware flow control in the driver.
562
563config SERIAL_BFIN_UART2
564	bool "Enable UART2"
565	depends on SERIAL_BFIN && (BF54x || BF538 || BF539)
566	help
567	  Enable UART2
568
569config BFIN_UART2_CTSRTS
570	bool "Enable UART2 hardware flow control"
571	depends on SERIAL_BFIN_UART2
572	help
573	  Enable hardware flow control in the driver.
574
575config SERIAL_BFIN_UART3
576	bool "Enable UART3"
577	depends on SERIAL_BFIN && (BF54x)
578	help
579	  Enable UART3
580
581config BFIN_UART3_CTSRTS
582	bool "Enable UART3 hardware flow control"
583	depends on SERIAL_BFIN_UART3
584	help
585	  Enable hardware flow control in the driver.
586
587config SERIAL_IMX
588	tristate "IMX serial port support"
589	depends on HAS_DMA
590	depends on ARCH_MXC || COMPILE_TEST
591	select SERIAL_CORE
592	select RATIONAL
593	select SERIAL_MCTRL_GPIO if GPIOLIB
594	help
595	  If you have a machine based on a Motorola IMX CPU you
596	  can enable its onboard serial port by enabling this option.
597
598config SERIAL_IMX_CONSOLE
599	bool "Console on IMX serial port"
600	depends on SERIAL_IMX=y
601	select SERIAL_CORE_CONSOLE
602	select SERIAL_EARLYCON if OF
603	help
604	  If you have enabled the serial port on the Freescale IMX
605	  CPU you can make it the console by answering Y to this option.
606
607	  Even if you say Y here, the currently visible virtual console
608	  (/dev/tty0) will still be used as the system console by default, but
609	  you can alter that using a kernel command line option such as
610	  "console=ttymxc0". (Try "man bootparam" or see the documentation of
611	  your bootloader about how to pass options to the kernel at boot time.)
612
613config SERIAL_UARTLITE
614	tristate "Xilinx uartlite serial port support"
615	depends on HAS_IOMEM
616	select SERIAL_CORE
617	help
618	  Say Y here if you want to use the Xilinx uartlite serial controller.
619
620	  To compile this driver as a module, choose M here: the
621	  module will be called uartlite.
622
623config SERIAL_UARTLITE_CONSOLE
624	bool "Support for console on Xilinx uartlite serial port"
625	depends on SERIAL_UARTLITE=y
626	select SERIAL_CORE_CONSOLE
627	select SERIAL_EARLYCON
628	help
629	  Say Y here if you wish to use a Xilinx uartlite as the system
630	  console (the system console is the device which receives all kernel
631	  messages and warnings and which allows logins in single user mode).
632
633config SERIAL_SUNCORE
634	bool
635	depends on SPARC
636	select SERIAL_CORE
637	select SERIAL_CORE_CONSOLE
638	default y
639
640config SERIAL_SUNZILOG
641	tristate "Sun Zilog8530 serial support"
642	depends on SPARC
643	help
644	  This driver supports the Zilog8530 serial ports found on many Sparc
645	  systems.  Say Y or M if you want to be able to these serial ports.
646
647config SERIAL_SUNZILOG_CONSOLE
648	bool "Console on Sun Zilog8530 serial port"
649	depends on SERIAL_SUNZILOG=y
650	help
651	  If you would like to be able to use the Zilog8530 serial port
652	  on your Sparc system as the console, you can do so by answering
653	  Y to this option.
654
655config SERIAL_SUNSU
656	tristate "Sun SU serial support"
657	depends on SPARC && PCI
658	help
659	  This driver supports the 8250 serial ports that run the keyboard and
660	  mouse on (PCI) UltraSPARC systems.  Say Y or M if you want to be able
661	  to these serial ports.
662
663config SERIAL_SUNSU_CONSOLE
664	bool "Console on Sun SU serial port"
665	depends on SERIAL_SUNSU=y
666	help
667	  If you would like to be able to use the SU serial port
668	  on your Sparc system as the console, you can do so by answering
669	  Y to this option.
670
671config SERIAL_MUX
672	tristate "Serial MUX support"
673	depends on GSC
674	select SERIAL_CORE
675	default y
676	---help---
677	  Saying Y here will enable the hardware MUX serial driver for
678	  the Nova, K class systems and D class with a 'remote control card'.
679	  The hardware MUX is not 8250/16550 compatible therefore the
680	  /dev/ttyB0 device is shared between the Serial MUX and the PDC
681	  software console. The following steps need to be completed to use
682	  the Serial MUX:
683
684	    1. create the device entry (mknod /dev/ttyB0 c 11 0)
685	    2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
686	    3. Add device ttyB0 to /etc/securetty (if you want to log on as
687		 root on this console.)
688	    4. Change the kernel command console parameter to: console=ttyB0
689
690config SERIAL_MUX_CONSOLE
691	bool "Support for console on serial MUX"
692	depends on SERIAL_MUX=y
693	select SERIAL_CORE_CONSOLE
694	default y
695
696config PDC_CONSOLE
697	bool "PDC software console support"
698	depends on PARISC && !SERIAL_MUX && VT
699	default n
700	help
701	  Saying Y here will enable the software based PDC console to be
702	  used as the system console.  This is useful for machines in
703	  which the hardware based console has not been written yet.  The
704	  following steps must be completed to use the PDC console:
705
706	    1. create the device entry (mknod /dev/ttyB0 c 11 0)
707	    2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
708	    3. Add device ttyB0 to /etc/securetty (if you want to log on as
709		 root on this console.)
710	    4. Change the kernel command console parameter to: console=ttyB0
711
712config SERIAL_SUNSAB
713	tristate "Sun Siemens SAB82532 serial support"
714	depends on SPARC && PCI
715	help
716	  This driver supports the Siemens SAB82532 DUSCC serial ports on newer
717	  (PCI) UltraSPARC systems.  Say Y or M if you want to be able to these
718	  serial ports.
719
720config SERIAL_SUNSAB_CONSOLE
721	bool "Console on Sun Siemens SAB82532 serial port"
722	depends on SERIAL_SUNSAB=y
723	help
724	  If you would like to be able to use the SAB82532 serial port
725	  on your Sparc system as the console, you can do so by answering
726	  Y to this option.
727
728config SERIAL_SUNHV
729	bool "Sun4v Hypervisor Console support"
730	depends on SPARC64
731	help
732	  This driver supports the console device found on SUN4V Sparc
733	  systems.  Say Y if you want to be able to use this device.
734
735config SERIAL_IP22_ZILOG
736	tristate "SGI Zilog8530 serial support"
737	depends on SGI_HAS_ZILOG
738	select SERIAL_CORE
739	help
740	  This driver supports the Zilog8530 serial ports found on SGI
741	  systems.  Say Y or M if you want to be able to these serial ports.
742
743config SERIAL_IP22_ZILOG_CONSOLE
744	bool "Console on SGI Zilog8530 serial port"
745	depends on SERIAL_IP22_ZILOG=y
746	select SERIAL_CORE_CONSOLE
747
748config SERIAL_SH_SCI
749	tristate "SuperH SCI(F) serial port support"
750	depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
751	select SERIAL_CORE
752	select SERIAL_MCTRL_GPIO if GPIOLIB
753
754config SERIAL_SH_SCI_NR_UARTS
755	int "Maximum number of SCI(F) serial ports"
756	depends on SERIAL_SH_SCI
757	default "2"
758
759config SERIAL_SH_SCI_CONSOLE
760	bool "Support for console on SuperH SCI(F)"
761	depends on SERIAL_SH_SCI=y
762	select SERIAL_CORE_CONSOLE
763
764config SERIAL_SH_SCI_EARLYCON
765	bool "Support for early console on SuperH SCI(F)"
766	depends on SERIAL_SH_SCI=y
767	select SERIAL_CORE_CONSOLE
768	select SERIAL_EARLYCON
769
770config SERIAL_SH_SCI_DMA
771	bool "DMA support"
772	depends on SERIAL_SH_SCI && DMA_ENGINE
773
774config SERIAL_PNX8XXX
775	bool "Enable PNX8XXX SoCs' UART Support"
776	depends on SOC_PNX833X
777	select SERIAL_CORE
778	help
779	  If you have a MIPS-based Philips SoC such as PNX8330 and you want
780	  to use serial ports, say Y.  Otherwise, say N.
781
782config SERIAL_PNX8XXX_CONSOLE
783	bool "Enable PNX8XX0 serial console"
784	depends on SERIAL_PNX8XXX
785	select SERIAL_CORE_CONSOLE
786	help
787	  If you have a MIPS-based Philips SoC such as PNX8330 and you want
788	  to use serial console, say Y. Otherwise, say N.
789
790config SERIAL_HS_LPC32XX
791	tristate "LPC32XX high speed serial port support"
792	depends on ARCH_LPC32XX && OF
793	select SERIAL_CORE
794	help
795	  Support for the LPC32XX high speed serial ports (up to 900kbps).
796	  Those are UARTs completely different from the Standard UARTs on the
797	  LPC32XX SoC.
798	  Choose M or Y here to build this driver.
799
800config SERIAL_HS_LPC32XX_CONSOLE
801	bool "Enable LPC32XX high speed UART serial console"
802	depends on SERIAL_HS_LPC32XX=y
803	select SERIAL_CORE_CONSOLE
804	help
805	  If you would like to be able to use one of the high speed serial
806	  ports on the LPC32XX as the console, you can do so by answering
807	  Y to this option.
808
809config SERIAL_CORE
810	tristate
811
812config SERIAL_CORE_CONSOLE
813	bool
814
815config CONSOLE_POLL
816	bool
817
818config SERIAL_MCF
819	bool "Coldfire serial support"
820	depends on COLDFIRE
821	select SERIAL_CORE
822	help
823	  This serial driver supports the Freescale Coldfire serial ports.
824
825config SERIAL_MCF_BAUDRATE
826	int "Default baudrate for Coldfire serial ports"
827	depends on SERIAL_MCF
828	default 19200
829	help
830	  This setting lets you define what the default baudrate is for the
831	  ColdFire serial ports. The usual default varies from board to board,
832	  and this setting is a way of catering for that.
833
834config SERIAL_MCF_CONSOLE
835	bool "Coldfire serial console support"
836	depends on SERIAL_MCF
837	select SERIAL_CORE_CONSOLE
838	help
839	  Enable a ColdFire internal serial port to be the system console.
840
841config SERIAL_PMACZILOG
842	tristate "Mac or PowerMac z85c30 ESCC support"
843	depends on (M68K && MAC) || PPC_PMAC
844	select SERIAL_CORE
845	help
846	  This driver supports the Zilog z85C30 serial ports found on
847	  (Power)Mac machines.
848	  Say Y or M if you want to be able to these serial ports.
849
850config SERIAL_PMACZILOG_TTYS
851	bool "Use ttySn device nodes for Zilog z85c30"
852	depends on SERIAL_PMACZILOG
853	help
854	  The pmac_zilog driver for the z85C30 chip on many powermacs
855	  historically used the device numbers for /dev/ttySn.  The
856	  8250 serial port driver also uses these numbers, which means
857	  the two drivers being unable to coexist; you could not use
858	  both z85C30 and 8250 type ports at the same time.
859
860	  If this option is not selected, the pmac_zilog driver will
861	  use the device numbers allocated for /dev/ttyPZn.  This allows
862	  the pmac_zilog and 8250 drivers to co-exist, but may cause
863	  existing userspace setups to break.  Programs that need to
864	  access the built-in serial ports on powermacs will need to
865	  be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
866
867	  If you enable this option, any z85c30 ports in the system will
868	  be registered as ttyS0 onwards as in the past, and you will be
869	  unable to use the 8250 module for PCMCIA or other 16C550-style
870	  UARTs.
871
872	  Say N unless you need the z85c30 ports on your (Power)Mac
873	  to appear as /dev/ttySn.
874
875config SERIAL_PMACZILOG_CONSOLE
876	bool "Console on Mac or PowerMac z85c30 serial port"
877	depends on SERIAL_PMACZILOG=y
878	select SERIAL_CORE_CONSOLE
879	help
880	  If you would like to be able to use the z85c30 serial port
881	  on your (Power)Mac as the console, you can do so by answering
882	  Y to this option.
883
884config SERIAL_CPM
885	tristate "CPM SCC/SMC serial port support"
886	depends on CPM2 || CPM1
887	select SERIAL_CORE
888	help
889	  This driver supports the SCC and SMC serial ports on Motorola
890	  embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
891
892config SERIAL_CPM_CONSOLE
893	bool "Support for console on CPM SCC/SMC serial port"
894	depends on SERIAL_CPM=y
895	select SERIAL_CORE_CONSOLE
896	help
897	  Say Y here if you wish to use a SCC or SMC CPM UART as the system
898	  console (the system console is the device which receives all kernel
899	  messages and warnings and which allows logins in single user mode).
900
901	  Even if you say Y here, the currently visible framebuffer console
902	  (/dev/tty0) will still be used as the system console by default, but
903	  you can alter that using a kernel command line option such as
904	  "console=ttyCPM0". (Try "man bootparam" or see the documentation of
905	  your boot loader (lilo or loadlin) about how to pass options to the
906	  kernel at boot time.)
907
908config SERIAL_SGI_L1_CONSOLE
909	bool "SGI Altix L1 serial console support"
910	depends on IA64_GENERIC || IA64_SGI_SN2
911	select SERIAL_CORE
912	select SERIAL_CORE_CONSOLE
913	help
914		If you have an SGI Altix and you would like to use the system
915		controller serial port as your console (you want this!),
916		say Y.  Otherwise, say N.
917
918config SERIAL_PIC32
919	tristate "Microchip PIC32 serial support"
920	depends on MACH_PIC32
921	select SERIAL_CORE
922	help
923	  If you have a PIC32, this driver supports the serial ports.
924
925	  Say Y or M to use PIC32 serial ports, otherwise say N. Note that
926	  to use a serial port as a console, this must be included in kernel and
927	  not as a module.
928
929config SERIAL_PIC32_CONSOLE
930	bool "PIC32 serial console support"
931	depends on SERIAL_PIC32
932	select SERIAL_CORE_CONSOLE
933	help
934	  If you have a PIC32, this driver supports the putting a console on one
935	  of the serial ports.
936
937	  Say Y to use the PIC32 console, otherwise say N.
938
939config SERIAL_MPC52xx
940	tristate "Freescale MPC52xx/MPC512x family PSC serial support"
941	depends on PPC_MPC52xx || PPC_MPC512x
942	select SERIAL_CORE
943	help
944	  This driver supports MPC52xx and MPC512x PSC serial ports. If you would
945	  like to use them, you must answer Y or M to this option. Note that
946	  for use as console, it must be included in kernel and not as a
947	  module.
948
949config SERIAL_MPC52xx_CONSOLE
950	bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
951	depends on SERIAL_MPC52xx=y
952	select SERIAL_CORE_CONSOLE
953	help
954	  Select this options if you'd like to use one of the PSC serial port
955	  of the Freescale MPC52xx family as a console.
956
957config SERIAL_MPC52xx_CONSOLE_BAUD
958	int "Freescale MPC52xx/MPC512x family PSC serial port baud"
959	depends on SERIAL_MPC52xx_CONSOLE=y
960	default "9600"
961	help
962	  Select the MPC52xx console baud rate.
963	  This value is only used if the bootloader doesn't pass in the
964	  console baudrate
965
966config SERIAL_ICOM
967	tristate "IBM Multiport Serial Adapter"
968	depends on PCI && PPC_PSERIES
969	select SERIAL_CORE
970	select FW_LOADER
971	help
972	  This driver is for a family of multiport serial adapters
973	  including 2 port RVX, 2 port internal modem, 4 port internal
974	  modem and a split 1 port RVX and 1 port internal modem.
975
976	  This driver can also be built as a module.  If so, the module
977	  will be called icom.
978
979config SERIAL_M32R_SIO
980	bool "M32R SIO I/F"
981	depends on M32R
982	default y
983	select SERIAL_CORE
984	help
985	  Say Y here if you want to use the M32R serial controller.
986
987config SERIAL_M32R_SIO_CONSOLE
988	bool "use SIO console"
989	depends on SERIAL_M32R_SIO=y
990	select SERIAL_CORE_CONSOLE
991	help
992	  Say Y here if you want to support a serial console.
993
994	  If you use an M3T-M32700UT or an OPSPUT platform,
995	  please say also y for SERIAL_M32R_PLDSIO.
996
997config SERIAL_M32R_PLDSIO
998	bool "M32R SIO I/F on a PLD"
999	depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1000	default n
1001	help
1002	  Say Y here if you want to use the M32R serial controller
1003	  on a PLD (Programmable Logic Device).
1004
1005	  If you use an M3T-M32700UT or an OPSPUT platform,
1006	  please say Y.
1007
1008config SERIAL_TXX9
1009	bool "TMPTX39XX/49XX SIO support"
1010	depends on HAS_TXX9_SERIAL
1011	select SERIAL_CORE
1012	default y
1013
1014config HAS_TXX9_SERIAL
1015	bool
1016
1017config SERIAL_TXX9_NR_UARTS
1018	int "Maximum number of TMPTX39XX/49XX SIO ports"
1019	depends on SERIAL_TXX9
1020	default "6"
1021
1022config SERIAL_TXX9_CONSOLE
1023	bool "TMPTX39XX/49XX SIO Console support"
1024	depends on SERIAL_TXX9=y
1025	select SERIAL_CORE_CONSOLE
1026
1027config SERIAL_TXX9_STDSERIAL
1028	bool "TX39XX/49XX SIO act as standard serial"
1029	depends on !SERIAL_8250 && SERIAL_TXX9
1030
1031config SERIAL_VR41XX
1032	tristate "NEC VR4100 series Serial Interface Unit support"
1033	depends on CPU_VR41XX
1034	select SERIAL_CORE
1035	help
1036	  If you have a NEC VR4100 series processor and you want to use
1037	  Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1038	  (not include VR4111/VR4121 DSIU), say Y.  Otherwise, say N.
1039
1040config SERIAL_VR41XX_CONSOLE
1041	bool "Enable NEC VR4100 series Serial Interface Unit console"
1042	depends on SERIAL_VR41XX=y
1043	select SERIAL_CORE_CONSOLE
1044	help
1045	  If you have a NEC VR4100 series processor and you want to use
1046	  a console on a serial port, say Y.  Otherwise, say N.
1047
1048config SERIAL_JSM
1049	tristate "Digi International NEO and Classic PCI Support"
1050	depends on PCI
1051	select SERIAL_CORE
1052	help
1053	  This is a driver for Digi International's Neo and Classic series
1054	  of cards which provide multiple serial ports. You would need
1055	  something like this to connect more than two modems to your Linux
1056	  box, for instance in order to become a dial-in server. This driver
1057	  supports PCI boards only.
1058
1059	  If you have a card like this, say Y here, otherwise say N.
1060
1061	  To compile this driver as a module, choose M here: the
1062	  module will be called jsm.
1063
1064config SERIAL_SGI_IOC4
1065	tristate "SGI IOC4 controller serial support"
1066	depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1067	select SERIAL_CORE
1068	help
1069		If you have an SGI Altix with an IOC4 based Base IO card
1070		and wish to use the serial ports on this card, say Y.
1071		Otherwise, say N.
1072
1073config SERIAL_SGI_IOC3
1074	tristate "SGI Altix IOC3 serial support"
1075	depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1076	select SERIAL_CORE
1077	help
1078	  If you have an SGI Altix with an IOC3 serial card,
1079	  say Y or M.  Otherwise, say N.
1080
1081config SERIAL_MSM
1082	tristate "MSM on-chip serial port support"
1083	depends on ARCH_QCOM
1084	select SERIAL_CORE
1085
1086config SERIAL_MSM_CONSOLE
1087	bool "MSM serial console support"
1088	depends on SERIAL_MSM=y
1089	select SERIAL_CORE_CONSOLE
1090	select SERIAL_EARLYCON
1091
1092config SERIAL_VT8500
1093	bool "VIA VT8500 on-chip serial port support"
1094	depends on ARCH_VT8500
1095	select SERIAL_CORE
1096
1097config SERIAL_VT8500_CONSOLE
1098	bool "VIA VT8500 serial console support"
1099	depends on SERIAL_VT8500=y
1100	select SERIAL_CORE_CONSOLE
1101
1102config SERIAL_ETRAXFS
1103	bool "ETRAX FS serial port support"
1104	depends on ETRAX_ARCH_V32 && OF
1105	select SERIAL_CORE
1106	select SERIAL_MCTRL_GPIO if GPIOLIB
1107
1108config SERIAL_ETRAXFS_CONSOLE
1109	bool "ETRAX FS serial console support"
1110	depends on SERIAL_ETRAXFS
1111	select SERIAL_CORE_CONSOLE
1112
1113config SERIAL_NETX
1114	tristate "NetX serial port support"
1115	depends on ARCH_NETX
1116	select SERIAL_CORE
1117	help
1118	  If you have a machine based on a Hilscher NetX SoC you
1119	  can enable its onboard serial port by enabling this option.
1120
1121          To compile this driver as a module, choose M here: the
1122          module will be called netx-serial.
1123
1124config SERIAL_NETX_CONSOLE
1125	bool "Console on NetX serial port"
1126	depends on SERIAL_NETX=y
1127	select SERIAL_CORE_CONSOLE
1128	help
1129	  If you have enabled the serial port on the Hilscher NetX SoC
1130	  you can make it the console by answering Y to this option.
1131
1132config SERIAL_OMAP
1133	tristate "OMAP serial port support"
1134	depends on ARCH_OMAP2PLUS
1135	select SERIAL_CORE
1136	help
1137	  If you have a machine based on an Texas Instruments OMAP CPU you
1138	  can enable its onboard serial ports by enabling this option.
1139
1140	  By enabling this option you take advantage of dma feature available
1141	  with the omap-serial driver. DMA support can be enabled from platform
1142	  data.
1143
1144config SERIAL_OMAP_CONSOLE
1145	bool "Console on OMAP serial port"
1146	depends on SERIAL_OMAP=y
1147	select SERIAL_CORE_CONSOLE
1148	help
1149	  Select this option if you would like to use omap serial port as
1150	  console.
1151
1152	  Even if you say Y here, the currently visible virtual console
1153	  (/dev/tty0) will still be used as the system console by default, but
1154	  you can alter that using a kernel command line option such as
1155	  "console=ttyOx". (Try "man bootparam" or see the documentation of
1156	  your boot loader about how to pass options to the kernel at
1157	  boot time.)
1158
1159config SERIAL_LANTIQ
1160	bool "Lantiq serial driver"
1161	depends on LANTIQ
1162	select SERIAL_CORE
1163	select SERIAL_CORE_CONSOLE
1164	help
1165	  Support for console and UART on Lantiq SoCs.
1166
1167config SERIAL_QE
1168	tristate "Freescale QUICC Engine serial port support"
1169	depends on QUICC_ENGINE
1170	select SERIAL_CORE
1171	select FW_LOADER
1172	default n
1173	help
1174	  This driver supports the QE serial ports on Freescale embedded
1175	  PowerPC that contain a QUICC Engine.
1176
1177config SERIAL_SCCNXP
1178	tristate "SCCNXP serial port support"
1179	select SERIAL_CORE
1180	help
1181	  This selects support for an advanced UART from NXP (Philips).
1182	  Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1183	  SC28L202, SCC68681 and SCC68692.
1184
1185config SERIAL_SCCNXP_CONSOLE
1186	bool "Console on SCCNXP serial port"
1187	depends on SERIAL_SCCNXP=y
1188	select SERIAL_CORE_CONSOLE
1189	help
1190	  Support for console on SCCNXP serial ports.
1191
1192config SERIAL_SC16IS7XX_CORE
1193        tristate
1194
1195config SERIAL_SC16IS7XX
1196        tristate "SC16IS7xx serial support"
1197        select SERIAL_CORE
1198        depends on (SPI_MASTER && !I2C) || I2C
1199        help
1200          This selects support for SC16IS7xx serial ports.
1201          Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1202          SC16IS760 and SC16IS762. Select supported buses using options below.
1203
1204config SERIAL_SC16IS7XX_I2C
1205        bool "SC16IS7xx for I2C interface"
1206        depends on SERIAL_SC16IS7XX
1207        depends on I2C
1208        select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1209        select REGMAP_I2C if I2C
1210        default y
1211        help
1212          Enable SC16IS7xx driver on I2C bus,
1213          If required say y, and say n to i2c if not required,
1214          Enabled by default to support oldconfig.
1215          You must select at least one bus for the driver to be built.
1216
1217config SERIAL_SC16IS7XX_SPI
1218        bool "SC16IS7xx for spi interface"
1219        depends on SERIAL_SC16IS7XX
1220        depends on SPI_MASTER
1221        select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1222        select REGMAP_SPI if SPI_MASTER
1223        help
1224          Enable SC16IS7xx driver on SPI bus,
1225          If required say y, and say n to spi if not required,
1226          This is additional support to exsisting driver.
1227          You must select at least one bus for the driver to be built.
1228
1229config SERIAL_BFIN_SPORT
1230	tristate "Blackfin SPORT emulate UART"
1231	depends on BLACKFIN
1232	select SERIAL_CORE
1233	help
1234	  Enable SPORT emulate UART on Blackfin series.
1235
1236	  To compile this driver as a module, choose M here: the
1237	  module will be called bfin_sport_uart.
1238
1239config SERIAL_BFIN_SPORT_CONSOLE
1240	bool "Console on Blackfin sport emulated uart"
1241	depends on SERIAL_BFIN_SPORT=y
1242	select SERIAL_CORE_CONSOLE
1243
1244config SERIAL_BFIN_SPORT0_UART
1245	bool "Enable UART over SPORT0"
1246	depends on SERIAL_BFIN_SPORT && !(BF542 || BF544)
1247	help
1248	  Enable UART over SPORT0
1249
1250config SERIAL_BFIN_SPORT0_UART_CTSRTS
1251	bool "Enable UART over SPORT0 hardware flow control"
1252	depends on SERIAL_BFIN_SPORT0_UART
1253	help
1254	  Enable hardware flow control in the driver.
1255
1256config SERIAL_BFIN_SPORT1_UART
1257	bool "Enable UART over SPORT1"
1258	depends on SERIAL_BFIN_SPORT
1259	help
1260	  Enable UART over SPORT1
1261
1262config SERIAL_BFIN_SPORT1_UART_CTSRTS
1263	bool "Enable UART over SPORT1 hardware flow control"
1264	depends on SERIAL_BFIN_SPORT1_UART
1265	help
1266	  Enable hardware flow control in the driver.
1267
1268config SERIAL_BFIN_SPORT2_UART
1269	bool "Enable UART over SPORT2"
1270	depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1271	help
1272	  Enable UART over SPORT2
1273
1274config SERIAL_BFIN_SPORT2_UART_CTSRTS
1275	bool "Enable UART over SPORT2 hardware flow control"
1276	depends on SERIAL_BFIN_SPORT2_UART
1277	help
1278	  Enable hardware flow control in the driver.
1279
1280config SERIAL_BFIN_SPORT3_UART
1281	bool "Enable UART over SPORT3"
1282	depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1283	help
1284	  Enable UART over SPORT3
1285
1286config SERIAL_BFIN_SPORT3_UART_CTSRTS
1287	bool "Enable UART over SPORT3 hardware flow control"
1288	depends on SERIAL_BFIN_SPORT3_UART
1289	help
1290	  Enable hardware flow control in the driver.
1291
1292config SERIAL_TIMBERDALE
1293	tristate "Support for timberdale UART"
1294	select SERIAL_CORE
1295	depends on X86_32 || COMPILE_TEST
1296	---help---
1297	Add support for UART controller on timberdale.
1298
1299config SERIAL_BCM63XX
1300	tristate "Broadcom BCM63xx/BCM33xx UART support"
1301	select SERIAL_CORE
1302	depends on MIPS || ARM || COMPILE_TEST
1303	help
1304	  This enables the driver for the onchip UART core found on
1305	  the following chipsets:
1306
1307	    BCM33xx (cable modem)
1308	    BCM63xx/BCM63xxx (DSL)
1309	    BCM68xx (PON)
1310	    BCM7xxx (STB) - DOCSIS console
1311
1312config SERIAL_BCM63XX_CONSOLE
1313	bool "Console on BCM63xx serial port"
1314	depends on SERIAL_BCM63XX=y
1315	select SERIAL_CORE_CONSOLE
1316	select SERIAL_EARLYCON
1317	help
1318	  If you have enabled the serial port on the BCM63xx CPU
1319	  you can make it the console by answering Y to this option.
1320
1321config SERIAL_GRLIB_GAISLER_APBUART
1322	tristate "GRLIB APBUART serial support"
1323	depends on OF && SPARC
1324	select SERIAL_CORE
1325	---help---
1326	Add support for the GRLIB APBUART serial port.
1327
1328config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1329	bool "Console on GRLIB APBUART serial port"
1330	depends on SERIAL_GRLIB_GAISLER_APBUART=y
1331	select SERIAL_CORE_CONSOLE
1332	help
1333	Support for running a console on the GRLIB APBUART
1334
1335config SERIAL_ALTERA_JTAGUART
1336	tristate "Altera JTAG UART support"
1337	select SERIAL_CORE
1338	help
1339	  This driver supports the Altera JTAG UART port.
1340
1341config SERIAL_ALTERA_JTAGUART_CONSOLE
1342	bool "Altera JTAG UART console support"
1343	depends on SERIAL_ALTERA_JTAGUART=y
1344	select SERIAL_CORE_CONSOLE
1345	help
1346	  Enable a Altera JTAG UART port to be the system console.
1347
1348config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1349	bool "Bypass output when no connection"
1350	depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1351	select SERIAL_CORE_CONSOLE
1352	help
1353	  Bypass console output and keep going even if there is no
1354	  JTAG terminal connection with the host.
1355
1356config SERIAL_ALTERA_UART
1357	tristate "Altera UART support"
1358	select SERIAL_CORE
1359	help
1360	  This driver supports the Altera softcore UART port.
1361
1362config SERIAL_ALTERA_UART_MAXPORTS
1363	int "Maximum number of Altera UART ports"
1364	depends on SERIAL_ALTERA_UART
1365	default 4
1366	help
1367	  This setting lets you define the maximum number of the Altera
1368	  UART ports. The usual default varies from board to board, and
1369	  this setting is a way of catering for that.
1370
1371config SERIAL_ALTERA_UART_BAUDRATE
1372	int "Default baudrate for Altera UART ports"
1373	depends on SERIAL_ALTERA_UART
1374	default 115200
1375	help
1376	  This setting lets you define what the default baudrate is for the
1377	  Altera UART ports. The usual default varies from board to board,
1378	  and this setting is a way of catering for that.
1379
1380config SERIAL_ALTERA_UART_CONSOLE
1381	bool "Altera UART console support"
1382	depends on SERIAL_ALTERA_UART=y
1383	select SERIAL_CORE_CONSOLE
1384	help
1385	  Enable a Altera UART port to be the system console.
1386
1387config SERIAL_IFX6X60
1388        tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1389	depends on GPIOLIB || COMPILE_TEST
1390	depends on SPI && HAS_DMA
1391	help
1392	  Support for the IFX6x60 modem devices on Intel MID platforms.
1393
1394config SERIAL_PCH_UART
1395	tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1396	depends on PCI && (X86_32 || MIPS ||  COMPILE_TEST)
1397	select SERIAL_CORE
1398	help
1399	  This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1400	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1401	  Enabling PCH_DMA, this PCH UART works as DMA mode.
1402
1403	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1404	  Output Hub), ML7213, ML7223 and ML7831.
1405	  ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1406	  for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1407	  ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1408	  ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1409
1410config SERIAL_PCH_UART_CONSOLE
1411	bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1412	depends on SERIAL_PCH_UART=y
1413	select SERIAL_CORE_CONSOLE
1414	help
1415	  Say Y here if you wish to use the PCH UART as the system console
1416	  (the system  console is the device which receives all kernel messages and
1417	  warnings and which allows logins in single user mode).
1418
1419config SERIAL_MXS_AUART
1420	tristate "MXS AUART support"
1421	depends on HAS_DMA
1422	depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1423	select SERIAL_CORE
1424	select SERIAL_MCTRL_GPIO if GPIOLIB
1425	help
1426	  This driver supports the MXS and Alphascale ASM9260 Application
1427	  UART (AUART) port.
1428
1429config SERIAL_MXS_AUART_CONSOLE
1430	bool "MXS AUART console support"
1431	depends on SERIAL_MXS_AUART=y
1432	select SERIAL_CORE_CONSOLE
1433	help
1434	  Enable a MXS AUART port to be the system console.
1435
1436config SERIAL_XILINX_PS_UART
1437	tristate "Cadence (Xilinx Zynq) UART support"
1438	depends on OF
1439	select SERIAL_CORE
1440	help
1441	  This driver supports the Cadence UART. It is found e.g. in Xilinx
1442	  Zynq.
1443
1444config SERIAL_XILINX_PS_UART_CONSOLE
1445	bool "Cadence UART console support"
1446	depends on SERIAL_XILINX_PS_UART=y
1447	select SERIAL_CORE_CONSOLE
1448	select SERIAL_EARLYCON
1449	help
1450	  Enable a Cadence UART port to be the system console.
1451
1452config SERIAL_AR933X
1453	tristate "AR933X serial port support"
1454	depends on HAVE_CLK && SOC_AR933X
1455	select SERIAL_CORE
1456	help
1457	  If you have an Atheros AR933X SOC based board and want to use the
1458	  built-in UART of the SoC, say Y to this option.
1459
1460	  To compile this driver as a module, choose M here: the
1461	  module will be called ar933x_uart.
1462
1463config SERIAL_AR933X_CONSOLE
1464	bool "Console on AR933X serial port"
1465	depends on SERIAL_AR933X=y
1466	select SERIAL_CORE_CONSOLE
1467	help
1468	  Enable a built-in UART port of the AR933X to be the system console.
1469
1470config SERIAL_AR933X_NR_UARTS
1471	int "Maximum number of AR933X serial ports"
1472	depends on SERIAL_AR933X
1473	default "2"
1474	help
1475	  Set this to the number of serial ports you want the driver
1476	  to support.
1477
1478config SERIAL_EFM32_UART
1479	tristate "EFM32 UART/USART port"
1480	depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1481	select SERIAL_CORE
1482	help
1483	  This driver support the USART and UART ports on
1484	  Energy Micro's efm32 SoCs.
1485
1486config SERIAL_MPS2_UART_CONSOLE
1487	bool "MPS2 UART console support"
1488	depends on SERIAL_MPS2_UART
1489	select SERIAL_CORE_CONSOLE
1490	select SERIAL_EARLYCON
1491
1492config SERIAL_MPS2_UART
1493	bool "MPS2 UART port"
1494	depends on ARCH_MPS2 || COMPILE_TEST
1495	select SERIAL_CORE
1496	help
1497	  This driver support the UART ports on ARM MPS2.
1498
1499config SERIAL_EFM32_UART_CONSOLE
1500	bool "EFM32 UART/USART console support"
1501	depends on SERIAL_EFM32_UART=y
1502	select SERIAL_CORE_CONSOLE
1503
1504config SERIAL_TILEGX
1505	tristate "TILE-Gx on-chip serial port support"
1506	depends on TILEGX
1507	select TILE_GXIO_UART
1508	select SERIAL_CORE
1509	---help---
1510	  This device provides access to the on-chip UARTs on the TILE-Gx
1511	  processor.
1512
1513config SERIAL_ARC
1514	tristate "ARC UART driver support"
1515	select SERIAL_CORE
1516	help
1517	  Driver for on-chip UART for ARC(Synopsys) for the legacy
1518	  FPGA Boards (ML50x/ARCAngel4)
1519
1520config SERIAL_ARC_CONSOLE
1521	bool "Console on ARC UART"
1522	depends on SERIAL_ARC=y
1523	select SERIAL_CORE_CONSOLE
1524	select SERIAL_EARLYCON
1525	help
1526	  Enable system Console on ARC UART
1527
1528config SERIAL_ARC_NR_PORTS
1529	int "Number of ARC UART ports"
1530	depends on SERIAL_ARC
1531	range 1 3
1532	default "1"
1533	help
1534	  Set this to the number of serial ports you want the driver
1535	  to support.
1536
1537config SERIAL_RP2
1538	tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1539	depends on PCI
1540	select SERIAL_CORE
1541	help
1542	  This driver supports the Comtrol RocketPort EXPRESS and
1543	  RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1544	  These adapters use a "RocketPort 2" ASIC that is not compatible
1545	  with the original RocketPort driver (CONFIG_ROCKETPORT).
1546
1547	  To compile this driver as a module, choose M here: the
1548	  module will be called rp2.
1549
1550	  If you want to compile this driver into the kernel, say Y here.  If
1551	  you don't have a suitable RocketPort card installed, say N.
1552
1553config SERIAL_RP2_NR_UARTS
1554	int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1555	depends on SERIAL_RP2
1556	default "32"
1557	help
1558	  If multiple cards are present, the default limit of 32 ports may
1559	  need to be increased.
1560
1561config SERIAL_FSL_LPUART
1562	tristate "Freescale lpuart serial port support"
1563	depends on HAS_DMA
1564	select SERIAL_CORE
1565	help
1566	  Support for the on-chip lpuart on some Freescale SOCs.
1567
1568config SERIAL_FSL_LPUART_CONSOLE
1569	bool "Console on Freescale lpuart serial port"
1570	depends on SERIAL_FSL_LPUART=y
1571	select SERIAL_CORE_CONSOLE
1572	select SERIAL_EARLYCON
1573	help
1574	  If you have enabled the lpuart serial port on the Freescale SoCs,
1575	  you can make it the console by answering Y to this option.
1576
1577config SERIAL_CONEXANT_DIGICOLOR
1578	tristate "Conexant Digicolor CX92xxx USART serial port support"
1579	depends on OF
1580	select SERIAL_CORE
1581	help
1582	  Support for the on-chip USART on Conexant Digicolor SoCs.
1583
1584config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1585	bool "Console on Conexant Digicolor serial port"
1586	depends on SERIAL_CONEXANT_DIGICOLOR=y
1587	select SERIAL_CORE_CONSOLE
1588	help
1589	  If you have enabled the USART serial port on Conexant Digicolor
1590	  SoCs, you can make it the console by answering Y to this option.
1591
1592config SERIAL_ST_ASC
1593	tristate "ST ASC serial port support"
1594	select SERIAL_CORE
1595	depends on ARM || COMPILE_TEST
1596	help
1597	  This driver is for the on-chip Asychronous Serial Controller on
1598	  STMicroelectronics STi SoCs.
1599	  ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1600	  It support all industry standard baud rates.
1601
1602	  If unsure, say N.
1603
1604config SERIAL_ST_ASC_CONSOLE
1605	bool "Support for console on ST ASC"
1606	depends on SERIAL_ST_ASC=y
1607	select SERIAL_CORE_CONSOLE
1608
1609config SERIAL_MEN_Z135
1610	tristate "MEN 16z135 Support"
1611	select SERIAL_CORE
1612	depends on MCB
1613	help
1614	  Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1615	  on a MCB carrier.
1616
1617	  This driver can also be build as a module. If so, the module will be called
1618	  men_z135_uart.ko
1619
1620config SERIAL_SPRD
1621	tristate "Support for Spreadtrum serial"
1622	depends on ARCH_SPRD
1623	select SERIAL_CORE
1624	help
1625	  This enables the driver for the Spreadtrum's serial.
1626
1627config SERIAL_SPRD_CONSOLE
1628	bool "Spreadtrum UART console support"
1629	depends on SERIAL_SPRD=y
1630	select SERIAL_CORE_CONSOLE
1631	select SERIAL_EARLYCON
1632	help
1633	  Support for early debug console using Spreadtrum's serial. This enables
1634	  the console before standard serial driver is probed. This is enabled
1635	  with "earlycon" on the kernel command line. The console is
1636	  enabled when early_param is processed.
1637
1638config SERIAL_STM32
1639	tristate "STMicroelectronics STM32 serial port support"
1640	select SERIAL_CORE
1641	depends on HAS_DMA
1642	depends on ARCH_STM32 || COMPILE_TEST
1643	help
1644	  This driver is for the on-chip Serial Controller on
1645	  STMicroelectronics STM32 MCUs.
1646	  USART supports Rx & Tx functionality.
1647	  It support all industry standard baud rates.
1648
1649	  If unsure, say N.
1650
1651config SERIAL_STM32_CONSOLE
1652	bool "Support for console on STM32"
1653	depends on SERIAL_STM32=y
1654	select SERIAL_CORE_CONSOLE
1655
1656config SERIAL_MVEBU_UART
1657	bool "Marvell EBU serial port support"
1658	depends on ARCH_MVEBU || COMPILE_TEST
1659	select SERIAL_CORE
1660	help
1661	  This driver is for Marvell EBU SoC's UART. If you have a machine
1662	  based on the Armada-3700 SoC and wish to use the on-board serial
1663	  port,
1664	  say 'Y' here.
1665	  Otherwise, say 'N'.
1666
1667config SERIAL_MVEBU_CONSOLE
1668	bool "Console on Marvell EBU serial port"
1669	depends on SERIAL_MVEBU_UART
1670	select SERIAL_CORE_CONSOLE
1671	select SERIAL_EARLYCON
1672	default y
1673	help
1674	  Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1675	  (the system console is the device which receives all kernel messages
1676	  and warnings and which allows logins in single user mode)
1677	  Otherwise, say 'N'.
1678
1679endmenu
1680
1681config SERIAL_MCTRL_GPIO
1682	tristate
1683
1684endif # TTY
1685