1 # SPDX-License-Identifier: GPL-2.0
3 # Serial device configuration
11 config SERIAL_EARLYCON
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.
18 source "drivers/tty/serial/8250/Kconfig"
20 comment "Non-8250 serial port support"
22 config SERIAL_AMBA_PL010
23 tristate "ARM AMBA PL010 serial port support"
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.
33 config 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
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).
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
49 config SERIAL_AMBA_PL011
50 tristate "ARM AMBA PL011 serial port support"
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
60 config 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
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).
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
77 config SERIAL_EARLYCON_ARM_SEMIHOST
78 bool "Early console using ARM semihosting"
79 depends on ARM64 || ARM
81 select SERIAL_CORE_CONSOLE
82 select SERIAL_EARLYCON
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.
89 config SERIAL_EARLYCON_RISCV_SBI
90 bool "Early console using RISC-V SBI"
93 select SERIAL_CORE_CONSOLE
94 select SERIAL_EARLYCON
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.
101 config SERIAL_SB1250_DUART
102 tristate "BCM1xxx on-chip DUART serial support"
103 depends on SIBYTE_SB1xxx_SOC=y
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.
113 If unsure, say Y. To compile this driver as a module, choose M here:
114 the module will be called sb1250-duart.
116 config 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
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
130 bool "AT91 on-chip serial port support"
131 depends on ARCH_AT91 || COMPILE_TEST
133 select SERIAL_MCTRL_GPIO if GPIOLIB
134 select MFD_AT91_USART
136 This enables the driver for the on-chip UARTs of the Atmel
139 config SERIAL_ATMEL_CONSOLE
140 bool "Support for console on AT91 serial port"
141 depends on SERIAL_ATMEL=y
142 select SERIAL_CORE_CONSOLE
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).
149 config SERIAL_ATMEL_PDC
150 bool "Support DMA transfers on AT91 serial port"
151 depends on SERIAL_ATMEL
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.
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.
164 config SERIAL_ATMEL_TTYAT
165 bool "Install as device ttyATn instead of ttySn"
166 depends on SERIAL_ATMEL=y
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.
176 To use this, you should create suitable ttyATn device nodes in
177 /dev/, and pass "console=ttyATn" to the kernel.
179 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
181 config SERIAL_KGDB_NMI
182 bool "Serial console over KGDB NMI debugger port"
183 depends on KGDB_SERIAL_CONSOLE
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).
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.
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
201 bool "Micrel KS8695 (Centaur) serial port support"
202 depends on ARCH_KS8695
205 This selects the Micrel Centaur KS8695 UART. Say Y here.
207 config SERIAL_KS8695_CONSOLE
208 bool "Support for console on KS8695 (Centaur) serial port"
209 depends on SERIAL_KS8695=y
210 select SERIAL_CORE_CONSOLE
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).
218 tristate "Meson serial port support"
219 depends on ARCH_MESON
222 This enables the driver for the on-chip UARTs of the Amlogic
225 config 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
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.
236 config SERIAL_CLPS711X
237 tristate "CLPS711X serial port support"
238 depends on ARCH_CLPS711X || COMPILE_TEST
240 select SERIAL_MCTRL_GPIO if GPIOLIB
242 This enables the driver for the on-chip UARTs of the Cirrus
243 Logic EP711x/EP721x/EP731x processors.
245 config SERIAL_CLPS711X_CONSOLE
246 bool "Support for console on CLPS711X serial port"
247 depends on SERIAL_CLPS711X=y
248 select SERIAL_CORE_CONSOLE
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
255 config SERIAL_SAMSUNG
256 tristate "Samsung SoC serial support"
257 depends on PLAT_SAMSUNG || ARCH_EXYNOS
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
265 config SERIAL_SAMSUNG_UARTS_4
267 depends on SERIAL_SAMSUNG
268 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
270 Internal node for the common case of 4 Samsung compatible UARTs
272 config SERIAL_SAMSUNG_UARTS
274 depends on SERIAL_SAMSUNG
275 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
278 Select the number of available UART ports for the Samsung S3C
281 config SERIAL_SAMSUNG_DEBUG
282 bool "Samsung SoC serial debug"
283 depends on SERIAL_SAMSUNG && DEBUG_LL
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()
290 config 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
296 Allow selection of the S3C24XX on-board serial ports for use as
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
306 config SERIAL_SIRFSOC
307 tristate "SiRF SoC Platform Serial port support"
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).
316 config SERIAL_SIRFSOC_CONSOLE
317 bool "Support for console on SiRF SoC serial port"
318 depends on SERIAL_SIRFSOC=y
319 select SERIAL_CORE_CONSOLE
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
329 tristate "NVIDIA Tegra20/30 SoC serial controller"
330 depends on ARCH_TEGRA && TEGRA20_APB_DMA
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.
339 config SERIAL_TEGRA_TCU
340 tristate "NVIDIA Tegra Combined UART"
341 depends on ARCH_TEGRA && TEGRA_HSP_MBOX
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.
348 config 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
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
361 config SERIAL_MAX3100
362 tristate "MAX3100 support"
368 config SERIAL_MAX310X
369 tristate "MAX310X support"
370 depends on SPI_MASTER
372 select REGMAP_SPI if SPI_MASTER
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.
379 Say Y here if you want to support this ICs.
382 bool "DECstation DZ serial driver"
383 depends on MACH_DECSTATION && 32BIT
387 DZ11-family serial controllers for DECstations and VAXstations,
388 including the DC7085, M7814, and M7819.
390 config SERIAL_DZ_CONSOLE
391 bool "Support console on DECstation DZ serial driver"
392 depends on SERIAL_DZ=y
393 select SERIAL_CORE_CONSOLE
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
401 Note that the firmware uses ttyS3 as the serial console on
402 DECstations that use this driver.
407 tristate "DECstation Z85C30 serial support"
408 depends on MACH_DECSTATION
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.
417 If unsure, say Y. To compile this driver as a module, choose M here:
418 the module will be called zs.
420 config 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
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
431 Note that the firmware uses ttyS1 as the serial console on the
432 Maxine and ttyS3 on the others using this driver.
437 tristate "DC21285 serial port support"
438 depends on FOOTBRIDGE
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
445 config SERIAL_21285_CONSOLE
446 bool "Console on DC21285 serial port"
447 depends on SERIAL_21285=y
448 select SERIAL_CORE_CONSOLE
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.
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.)
461 bool "PXA serial port support (DEPRECATED)"
462 depends on ARCH_PXA || ARCH_MMP
464 select SERIAL_8250_PXA if SERIAL_8250=y
465 select SERIAL_PXA_NON8250 if !SERIAL_8250=y
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.
470 Unless you have a specific need, you should use SERIAL_8250_PXA
473 config SERIAL_PXA_NON8250
475 depends on !SERIAL_8250
477 config 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
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.
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.)
493 Unless you have a specific need, you should use SERIAL_8250_PXA
494 and SERIAL_8250_CONSOLE instead of this.
497 bool "SA1100 serial port support"
498 depends on ARCH_SA1100
500 select SERIAL_MCTRL_GPIO if GPIOLIB
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
507 config SERIAL_SA1100_CONSOLE
508 bool "Console on SA1100 serial port"
509 depends on SERIAL_SA1100
510 select SERIAL_CORE_CONSOLE
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.
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.)
523 tristate "IMX serial port support"
524 depends on ARCH_MXC || COMPILE_TEST
527 select SERIAL_MCTRL_GPIO if GPIOLIB
529 If you have a machine based on a Motorola IMX CPU you
530 can enable its onboard serial port by enabling this option.
532 config 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
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.
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.)
547 config SERIAL_UARTLITE
548 tristate "Xilinx uartlite serial port support"
552 Say Y here if you want to use the Xilinx uartlite serial controller.
554 To compile this driver as a module, choose M here: the
555 module will be called uartlite.
557 config 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
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).
567 config SERIAL_UARTLITE_NR_UARTS
568 int "Maximum number of uartlite serial ports"
569 depends on SERIAL_UARTLITE
573 Set this to the number of uartlites in your system, or the number
574 you think you might implement.
576 config SERIAL_SUNCORE
580 select SERIAL_CORE_CONSOLE
583 config SERIAL_SUNZILOG
584 tristate "Sun Zilog8530 serial support"
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.
590 config SERIAL_SUNZILOG_CONSOLE
591 bool "Console on Sun Zilog8530 serial port"
592 depends on SERIAL_SUNZILOG=y
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
599 tristate "Sun SU serial support"
600 depends on SPARC && PCI
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.
606 config SERIAL_SUNSU_CONSOLE
607 bool "Console on Sun SU serial port"
608 depends on SERIAL_SUNSU=y
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
615 tristate "Serial MUX support"
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
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
633 config SERIAL_MUX_CONSOLE
634 bool "Support for console on serial MUX"
635 depends on SERIAL_MUX=y
636 select SERIAL_CORE_CONSOLE
640 bool "PDC software console support"
641 depends on PARISC && !SERIAL_MUX && VT
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:
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
655 tristate "Sun Siemens SAB82532 serial support"
656 depends on SPARC && PCI
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
662 config SERIAL_SUNSAB_CONSOLE
663 bool "Console on Sun Siemens SAB82532 serial port"
664 depends on SERIAL_SUNSAB=y
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
671 bool "Sun4v Hypervisor Console support"
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.
677 config SERIAL_IP22_ZILOG
678 tristate "SGI Zilog8530 serial support"
679 depends on SGI_HAS_ZILOG
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.
685 config SERIAL_IP22_ZILOG_CONSOLE
686 bool "Console on SGI Zilog8530 serial port"
687 depends on SERIAL_IP22_ZILOG=y
688 select SERIAL_CORE_CONSOLE
691 tristate "SuperH SCI(F) serial port support"
692 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
694 select SERIAL_MCTRL_GPIO if GPIOLIB
696 config SERIAL_SH_SCI_NR_UARTS
697 int "Maximum number of SCI(F) serial ports" if EXPERT
700 depends on SERIAL_SH_SCI
702 default "10" if SUPERH
703 default "18" if ARCH_RENESAS
706 config 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
712 config 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
719 config SERIAL_SH_SCI_DMA
720 bool "DMA support" if EXPERT
721 depends on SERIAL_SH_SCI && DMA_ENGINE
724 config SERIAL_PNX8XXX
725 bool "Enable PNX8XXX SoCs' UART Support"
726 depends on SOC_PNX833X
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.
732 config SERIAL_PNX8XXX_CONSOLE
733 bool "Enable PNX8XX0 serial console"
734 depends on SERIAL_PNX8XXX
735 select SERIAL_CORE_CONSOLE
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.
740 config SERIAL_HS_LPC32XX
741 tristate "LPC32XX high speed serial port support"
742 depends on ARCH_LPC32XX || COMPILE_TEST
746 Support for the LPC32XX high speed serial ports (up to 900kbps).
747 Those are UARTs completely different from the Standard UARTs on the
749 Choose M or Y here to build this driver.
751 config SERIAL_HS_LPC32XX_CONSOLE
752 bool "Enable LPC32XX high speed UART serial console"
753 depends on SERIAL_HS_LPC32XX=y
754 select SERIAL_CORE_CONSOLE
756 If you would like to be able to use one of the high speed serial
757 ports on the LPC32XX as the console, you can do so by answering
763 config SERIAL_CORE_CONSOLE
770 bool "Coldfire serial support"
774 This serial driver supports the Freescale Coldfire serial ports.
776 config SERIAL_MCF_BAUDRATE
777 int "Default baudrate for Coldfire serial ports"
778 depends on SERIAL_MCF
781 This setting lets you define what the default baudrate is for the
782 ColdFire serial ports. The usual default varies from board to board,
783 and this setting is a way of catering for that.
785 config SERIAL_MCF_CONSOLE
786 bool "Coldfire serial console support"
787 depends on SERIAL_MCF
788 select SERIAL_CORE_CONSOLE
790 Enable a ColdFire internal serial port to be the system console.
792 config SERIAL_PMACZILOG
793 tristate "Mac or PowerMac z85c30 ESCC support"
794 depends on (M68K && MAC) || PPC_PMAC
797 This driver supports the Zilog z85C30 serial ports found on
799 Say Y or M if you want to be able to these serial ports.
801 config SERIAL_PMACZILOG_TTYS
802 bool "Use ttySn device nodes for Zilog z85c30"
803 depends on SERIAL_PMACZILOG
805 The pmac_zilog driver for the z85C30 chip on many powermacs
806 historically used the device numbers for /dev/ttySn. The
807 8250 serial port driver also uses these numbers, which means
808 the two drivers being unable to coexist; you could not use
809 both z85C30 and 8250 type ports at the same time.
811 If this option is not selected, the pmac_zilog driver will
812 use the device numbers allocated for /dev/ttyPZn. This allows
813 the pmac_zilog and 8250 drivers to co-exist, but may cause
814 existing userspace setups to break. Programs that need to
815 access the built-in serial ports on powermacs will need to
816 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
818 If you enable this option, any z85c30 ports in the system will
819 be registered as ttyS0 onwards as in the past, and you will be
820 unable to use the 8250 module for PCMCIA or other 16C550-style
823 Say N unless you need the z85c30 ports on your (Power)Mac
824 to appear as /dev/ttySn.
826 config SERIAL_PMACZILOG_CONSOLE
827 bool "Console on Mac or PowerMac z85c30 serial port"
828 depends on SERIAL_PMACZILOG=y
829 select SERIAL_CORE_CONSOLE
831 If you would like to be able to use the z85c30 serial port
832 on your (Power)Mac as the console, you can do so by answering
836 tristate "CPM SCC/SMC serial port support"
837 depends on CPM2 || CPM1
840 This driver supports the SCC and SMC serial ports on Motorola
841 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
843 config SERIAL_CPM_CONSOLE
844 bool "Support for console on CPM SCC/SMC serial port"
845 depends on SERIAL_CPM=y
846 select SERIAL_CORE_CONSOLE
848 Say Y here if you wish to use a SCC or SMC CPM UART as the system
849 console (the system console is the device which receives all kernel
850 messages and warnings and which allows logins in single user mode).
852 Even if you say Y here, the currently visible framebuffer console
853 (/dev/tty0) will still be used as the system console by default, but
854 you can alter that using a kernel command line option such as
855 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
856 your boot loader (lilo or loadlin) about how to pass options to the
857 kernel at boot time.)
859 config SERIAL_SGI_L1_CONSOLE
860 bool "SGI Altix L1 serial console support"
861 depends on IA64_GENERIC || IA64_SGI_SN2
863 select SERIAL_CORE_CONSOLE
865 If you have an SGI Altix and you would like to use the system
866 controller serial port as your console (you want this!),
867 say Y. Otherwise, say N.
870 tristate "Microchip PIC32 serial support"
871 depends on MACH_PIC32
874 If you have a PIC32, this driver supports the serial ports.
876 Say Y or M to use PIC32 serial ports, otherwise say N. Note that
877 to use a serial port as a console, this must be included in kernel and
880 config SERIAL_PIC32_CONSOLE
881 bool "PIC32 serial console support"
882 depends on SERIAL_PIC32
883 select SERIAL_CORE_CONSOLE
885 If you have a PIC32, this driver supports the putting a console on one
888 Say Y to use the PIC32 console, otherwise say N.
890 config SERIAL_MPC52xx
891 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
892 depends on PPC_MPC52xx || PPC_MPC512x
895 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
896 like to use them, you must answer Y or M to this option. Note that
897 for use as console, it must be included in kernel and not as a
900 config SERIAL_MPC52xx_CONSOLE
901 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
902 depends on SERIAL_MPC52xx=y
903 select SERIAL_CORE_CONSOLE
905 Select this options if you'd like to use one of the PSC serial port
906 of the Freescale MPC52xx family as a console.
908 config SERIAL_MPC52xx_CONSOLE_BAUD
909 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
910 depends on SERIAL_MPC52xx_CONSOLE=y
913 Select the MPC52xx console baud rate.
914 This value is only used if the bootloader doesn't pass in the
918 tristate "IBM Multiport Serial Adapter"
919 depends on PCI && PPC_PSERIES
923 This driver is for a family of multiport serial adapters
924 including 2 port RVX, 2 port internal modem, 4 port internal
925 modem and a split 1 port RVX and 1 port internal modem.
927 This driver can also be built as a module. If so, the module
931 bool "TMPTX39XX/49XX SIO support"
932 depends on HAS_TXX9_SERIAL
936 config HAS_TXX9_SERIAL
939 config SERIAL_TXX9_NR_UARTS
940 int "Maximum number of TMPTX39XX/49XX SIO ports"
941 depends on SERIAL_TXX9
944 config SERIAL_TXX9_CONSOLE
945 bool "TMPTX39XX/49XX SIO Console support"
946 depends on SERIAL_TXX9=y
947 select SERIAL_CORE_CONSOLE
949 config SERIAL_TXX9_STDSERIAL
950 bool "TX39XX/49XX SIO act as standard serial"
951 depends on !SERIAL_8250 && SERIAL_TXX9
954 tristate "NEC VR4100 series Serial Interface Unit support"
955 depends on CPU_VR41XX
958 If you have a NEC VR4100 series processor and you want to use
959 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
960 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
962 config SERIAL_VR41XX_CONSOLE
963 bool "Enable NEC VR4100 series Serial Interface Unit console"
964 depends on SERIAL_VR41XX=y
965 select SERIAL_CORE_CONSOLE
967 If you have a NEC VR4100 series processor and you want to use
968 a console on a serial port, say Y. Otherwise, say N.
971 tristate "Digi International NEO and Classic PCI Support"
975 This is a driver for Digi International's Neo and Classic series
976 of cards which provide multiple serial ports. You would need
977 something like this to connect more than two modems to your Linux
978 box, for instance in order to become a dial-in server. This driver
979 supports PCI boards only.
981 If you have a card like this, say Y here, otherwise say N.
983 To compile this driver as a module, choose M here: the
984 module will be called jsm.
986 config SERIAL_SGI_IOC4
987 tristate "SGI IOC4 controller serial support"
988 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
991 If you have an SGI Altix with an IOC4 based Base IO card
992 and wish to use the serial ports on this card, say Y.
995 config SERIAL_SGI_IOC3
996 tristate "SGI Altix IOC3 serial support"
997 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1000 If you have an SGI Altix with an IOC3 serial card,
1001 say Y or M. Otherwise, say N.
1004 tristate "MSM on-chip serial port support"
1005 depends on ARCH_QCOM
1008 config SERIAL_MSM_CONSOLE
1009 bool "MSM serial console support"
1010 depends on SERIAL_MSM=y
1011 select SERIAL_CORE_CONSOLE
1012 select SERIAL_EARLYCON
1014 config SERIAL_QCOM_GENI
1015 tristate "QCOM on-chip GENI based serial port support"
1016 depends on ARCH_QCOM || COMPILE_TEST
1017 depends on QCOM_GENI_SE
1020 config SERIAL_QCOM_GENI_CONSOLE
1021 bool "QCOM GENI Serial Console support"
1022 depends on SERIAL_QCOM_GENI=y
1023 select SERIAL_CORE_CONSOLE
1024 select SERIAL_EARLYCON
1026 Serial console driver for Qualcomm Technologies Inc's GENI based
1029 config SERIAL_VT8500
1030 bool "VIA VT8500 on-chip serial port support"
1031 depends on ARCH_VT8500
1034 config SERIAL_VT8500_CONSOLE
1035 bool "VIA VT8500 serial console support"
1036 depends on SERIAL_VT8500=y
1037 select SERIAL_CORE_CONSOLE
1040 tristate "OMAP serial port support"
1041 depends on ARCH_OMAP2PLUS
1044 If you have a machine based on an Texas Instruments OMAP CPU you
1045 can enable its onboard serial ports by enabling this option.
1047 By enabling this option you take advantage of dma feature available
1048 with the omap-serial driver. DMA support can be enabled from platform
1051 config SERIAL_OMAP_CONSOLE
1052 bool "Console on OMAP serial port"
1053 depends on SERIAL_OMAP=y
1054 select SERIAL_CORE_CONSOLE
1056 Select this option if you would like to use omap serial port as
1059 Even if you say Y here, the currently visible virtual console
1060 (/dev/tty0) will still be used as the system console by default, but
1061 you can alter that using a kernel command line option such as
1062 "console=ttyOx". (Try "man bootparam" or see the documentation of
1063 your boot loader about how to pass options to the kernel at
1066 config SERIAL_SIFIVE
1067 tristate "SiFive UART support"
1071 Select this option if you are building a kernel for a device that
1072 contains a SiFive UART IP block. This type of UART is present on
1073 SiFive FU540 SoCs, among others.
1075 config SERIAL_SIFIVE_CONSOLE
1076 bool "Console on SiFive UART"
1077 depends on SERIAL_SIFIVE=y
1078 select SERIAL_CORE_CONSOLE
1080 Select this option if you would like to use a SiFive UART as the
1083 Even if you say Y here, the currently visible virtual console
1084 (/dev/tty0) will still be used as the system console by default, but
1085 you can alter that using a kernel command line option such as
1086 "console=ttySIFx". (Try "man bootparam" or see the documentation of
1087 your boot loader about how to pass options to the kernel at
1090 config SERIAL_LANTIQ
1091 bool "Lantiq serial driver"
1094 select SERIAL_CORE_CONSOLE
1095 select SERIAL_EARLYCON
1097 Support for console and UART on Lantiq SoCs.
1100 tristate "Freescale QUICC Engine serial port support"
1101 depends on QUICC_ENGINE
1105 This driver supports the QE serial ports on Freescale embedded
1106 PowerPC that contain a QUICC Engine.
1108 config SERIAL_SCCNXP
1109 tristate "SCCNXP serial port support"
1112 This selects support for an advanced UART from NXP (Philips).
1113 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1114 SC28L202, SCC68681 and SCC68692.
1116 config SERIAL_SCCNXP_CONSOLE
1117 bool "Console on SCCNXP serial port"
1118 depends on SERIAL_SCCNXP=y
1119 select SERIAL_CORE_CONSOLE
1121 Support for console on SCCNXP serial ports.
1123 config SERIAL_SC16IS7XX_CORE
1126 config SERIAL_SC16IS7XX
1127 tristate "SC16IS7xx serial support"
1129 depends on (SPI_MASTER && !I2C) || I2C
1131 This selects support for SC16IS7xx serial ports.
1132 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1133 SC16IS760 and SC16IS762. Select supported buses using options below.
1135 config SERIAL_SC16IS7XX_I2C
1136 bool "SC16IS7xx for I2C interface"
1137 depends on SERIAL_SC16IS7XX
1139 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1140 select REGMAP_I2C if I2C
1143 Enable SC16IS7xx driver on I2C bus,
1144 If required say y, and say n to i2c if not required,
1145 Enabled by default to support oldconfig.
1146 You must select at least one bus for the driver to be built.
1148 config SERIAL_SC16IS7XX_SPI
1149 bool "SC16IS7xx for spi interface"
1150 depends on SERIAL_SC16IS7XX
1151 depends on SPI_MASTER
1152 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1153 select REGMAP_SPI if SPI_MASTER
1155 Enable SC16IS7xx driver on SPI bus,
1156 If required say y, and say n to spi if not required,
1157 This is additional support to exsisting driver.
1158 You must select at least one bus for the driver to be built.
1160 config SERIAL_TIMBERDALE
1161 tristate "Support for timberdale UART"
1163 depends on X86_32 || COMPILE_TEST
1165 Add support for UART controller on timberdale.
1167 config SERIAL_BCM63XX
1168 tristate "Broadcom BCM63xx/BCM33xx UART support"
1170 depends on MIPS || ARM || COMPILE_TEST
1172 This enables the driver for the onchip UART core found on
1173 the following chipsets:
1175 BCM33xx (cable modem)
1176 BCM63xx/BCM63xxx (DSL)
1178 BCM7xxx (STB) - DOCSIS console
1180 config SERIAL_BCM63XX_CONSOLE
1181 bool "Console on BCM63xx serial port"
1182 depends on SERIAL_BCM63XX=y
1183 select SERIAL_CORE_CONSOLE
1184 select SERIAL_EARLYCON
1186 If you have enabled the serial port on the BCM63xx CPU
1187 you can make it the console by answering Y to this option.
1189 config SERIAL_GRLIB_GAISLER_APBUART
1190 tristate "GRLIB APBUART serial support"
1191 depends on OF && SPARC
1194 Add support for the GRLIB APBUART serial port.
1196 config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1197 bool "Console on GRLIB APBUART serial port"
1198 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1199 select SERIAL_CORE_CONSOLE
1201 Support for running a console on the GRLIB APBUART
1203 config SERIAL_ALTERA_JTAGUART
1204 tristate "Altera JTAG UART support"
1207 This driver supports the Altera JTAG UART port.
1209 config SERIAL_ALTERA_JTAGUART_CONSOLE
1210 bool "Altera JTAG UART console support"
1211 depends on SERIAL_ALTERA_JTAGUART=y
1212 select SERIAL_CORE_CONSOLE
1213 select SERIAL_EARLYCON
1215 Enable a Altera JTAG UART port to be the system console.
1217 config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1218 bool "Bypass output when no connection"
1219 depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1220 select SERIAL_CORE_CONSOLE
1222 Bypass console output and keep going even if there is no
1223 JTAG terminal connection with the host.
1225 config SERIAL_ALTERA_UART
1226 tristate "Altera UART support"
1229 This driver supports the Altera softcore UART port.
1231 config SERIAL_ALTERA_UART_MAXPORTS
1232 int "Maximum number of Altera UART ports"
1233 depends on SERIAL_ALTERA_UART
1236 This setting lets you define the maximum number of the Altera
1237 UART ports. The usual default varies from board to board, and
1238 this setting is a way of catering for that.
1240 config SERIAL_ALTERA_UART_BAUDRATE
1241 int "Default baudrate for Altera UART ports"
1242 depends on SERIAL_ALTERA_UART
1245 This setting lets you define what the default baudrate is for the
1246 Altera UART ports. The usual default varies from board to board,
1247 and this setting is a way of catering for that.
1249 config SERIAL_ALTERA_UART_CONSOLE
1250 bool "Altera UART console support"
1251 depends on SERIAL_ALTERA_UART=y
1252 select SERIAL_CORE_CONSOLE
1253 select SERIAL_EARLYCON
1255 Enable a Altera UART port to be the system console.
1257 config SERIAL_IFX6X60
1258 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1259 depends on GPIOLIB || COMPILE_TEST
1260 depends on SPI && HAS_DMA
1262 Support for the IFX6x60 modem devices on Intel MID platforms.
1264 config SERIAL_PCH_UART
1265 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1266 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
1269 This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1270 which is an IOH(Input/Output Hub) for x86 embedded processor.
1271 Enabling PCH_DMA, this PCH UART works as DMA mode.
1273 This driver also can be used for LAPIS Semiconductor IOH(Input/
1274 Output Hub), ML7213, ML7223 and ML7831.
1275 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1276 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1277 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1278 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1280 config SERIAL_PCH_UART_CONSOLE
1281 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1282 depends on SERIAL_PCH_UART=y
1283 select SERIAL_CORE_CONSOLE
1285 Say Y here if you wish to use the PCH UART as the system console
1286 (the system console is the device which receives all kernel messages and
1287 warnings and which allows logins in single user mode).
1289 config SERIAL_MXS_AUART
1290 tristate "MXS AUART support"
1291 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1293 select SERIAL_MCTRL_GPIO if GPIOLIB
1295 This driver supports the MXS and Alphascale ASM9260 Application
1298 config SERIAL_MXS_AUART_CONSOLE
1299 bool "MXS AUART console support"
1300 depends on SERIAL_MXS_AUART=y
1301 select SERIAL_CORE_CONSOLE
1303 Enable a MXS AUART port to be the system console.
1305 config SERIAL_XILINX_PS_UART
1306 tristate "Cadence (Xilinx Zynq) UART support"
1310 This driver supports the Cadence UART. It is found e.g. in Xilinx
1313 config SERIAL_XILINX_PS_UART_CONSOLE
1314 bool "Cadence UART console support"
1315 depends on SERIAL_XILINX_PS_UART=y
1316 select SERIAL_CORE_CONSOLE
1317 select SERIAL_EARLYCON
1319 Enable a Cadence UART port to be the system console.
1321 config SERIAL_AR933X
1322 tristate "AR933X serial port support"
1323 depends on HAVE_CLK && ATH79
1326 If you have an Atheros AR933X SOC based board and want to use the
1327 built-in UART of the SoC, say Y to this option.
1329 To compile this driver as a module, choose M here: the
1330 module will be called ar933x_uart.
1332 config SERIAL_AR933X_CONSOLE
1333 bool "Console on AR933X serial port"
1334 depends on SERIAL_AR933X=y
1335 select SERIAL_CORE_CONSOLE
1337 Enable a built-in UART port of the AR933X to be the system console.
1339 config SERIAL_AR933X_NR_UARTS
1340 int "Maximum number of AR933X serial ports"
1341 depends on SERIAL_AR933X
1344 Set this to the number of serial ports you want the driver
1347 config SERIAL_EFM32_UART
1348 tristate "EFM32 UART/USART port"
1349 depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1352 This driver support the USART and UART ports on
1353 Energy Micro's efm32 SoCs.
1355 config SERIAL_MPS2_UART_CONSOLE
1356 bool "MPS2 UART console support"
1357 depends on SERIAL_MPS2_UART
1358 select SERIAL_CORE_CONSOLE
1359 select SERIAL_EARLYCON
1361 config SERIAL_MPS2_UART
1362 bool "MPS2 UART port"
1363 depends on ARCH_MPS2 || COMPILE_TEST
1366 This driver support the UART ports on ARM MPS2.
1368 config SERIAL_EFM32_UART_CONSOLE
1369 bool "EFM32 UART/USART console support"
1370 depends on SERIAL_EFM32_UART=y
1371 select SERIAL_CORE_CONSOLE
1374 tristate "ARC UART driver support"
1377 Driver for on-chip UART for ARC(Synopsys) for the legacy
1378 FPGA Boards (ML50x/ARCAngel4)
1380 config SERIAL_ARC_CONSOLE
1381 bool "Console on ARC UART"
1382 depends on SERIAL_ARC=y
1383 select SERIAL_CORE_CONSOLE
1384 select SERIAL_EARLYCON
1386 Enable system Console on ARC UART
1388 config SERIAL_ARC_NR_PORTS
1389 int "Number of ARC UART ports"
1390 depends on SERIAL_ARC
1394 Set this to the number of serial ports you want the driver
1398 tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1402 This driver supports the Comtrol RocketPort EXPRESS and
1403 RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1404 These adapters use a "RocketPort 2" ASIC that is not compatible
1405 with the original RocketPort driver (CONFIG_ROCKETPORT).
1407 To compile this driver as a module, choose M here: the
1408 module will be called rp2.
1410 If you want to compile this driver into the kernel, say Y here. If
1411 you don't have a suitable RocketPort card installed, say N.
1413 config SERIAL_RP2_NR_UARTS
1414 int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1415 depends on SERIAL_RP2
1418 If multiple cards are present, the default limit of 32 ports may
1419 need to be increased.
1421 config SERIAL_FSL_LPUART
1422 tristate "Freescale lpuart serial port support"
1426 Support for the on-chip lpuart on some Freescale SOCs.
1428 config SERIAL_FSL_LPUART_CONSOLE
1429 bool "Console on Freescale lpuart serial port"
1430 depends on SERIAL_FSL_LPUART=y
1431 select SERIAL_CORE_CONSOLE
1432 select SERIAL_EARLYCON
1434 If you have enabled the lpuart serial port on the Freescale SoCs,
1435 you can make it the console by answering Y to this option.
1437 config SERIAL_CONEXANT_DIGICOLOR
1438 tristate "Conexant Digicolor CX92xxx USART serial port support"
1442 Support for the on-chip USART on Conexant Digicolor SoCs.
1444 config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1445 bool "Console on Conexant Digicolor serial port"
1446 depends on SERIAL_CONEXANT_DIGICOLOR=y
1447 select SERIAL_CORE_CONSOLE
1449 If you have enabled the USART serial port on Conexant Digicolor
1450 SoCs, you can make it the console by answering Y to this option.
1452 config SERIAL_ST_ASC
1453 tristate "ST ASC serial port support"
1455 depends on ARM || COMPILE_TEST
1457 This driver is for the on-chip Asychronous Serial Controller on
1458 STMicroelectronics STi SoCs.
1459 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1460 It support all industry standard baud rates.
1464 config SERIAL_ST_ASC_CONSOLE
1465 bool "Support for console on ST ASC"
1466 depends on SERIAL_ST_ASC=y
1467 select SERIAL_CORE_CONSOLE
1469 config SERIAL_MEN_Z135
1470 tristate "MEN 16z135 Support"
1474 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1477 This driver can also be build as a module. If so, the module will be called
1481 tristate "Support for Spreadtrum serial"
1482 depends on ARCH_SPRD
1485 This enables the driver for the Spreadtrum's serial.
1487 config SERIAL_SPRD_CONSOLE
1488 bool "Spreadtrum UART console support"
1489 depends on SERIAL_SPRD=y
1490 select SERIAL_CORE_CONSOLE
1491 select SERIAL_EARLYCON
1493 Support for early debug console using Spreadtrum's serial. This enables
1494 the console before standard serial driver is probed. This is enabled
1495 with "earlycon" on the kernel command line. The console is
1496 enabled when early_param is processed.
1499 tristate "STMicroelectronics STM32 serial port support"
1501 depends on ARCH_STM32 || COMPILE_TEST
1503 This driver is for the on-chip Serial Controller on
1504 STMicroelectronics STM32 MCUs.
1505 USART supports Rx & Tx functionality.
1506 It support all industry standard baud rates.
1510 config SERIAL_STM32_CONSOLE
1511 bool "Support for console on STM32"
1512 depends on SERIAL_STM32=y
1513 select SERIAL_CORE_CONSOLE
1515 config SERIAL_MVEBU_UART
1516 bool "Marvell EBU serial port support"
1517 depends on ARCH_MVEBU || COMPILE_TEST
1520 This driver is for Marvell EBU SoC's UART. If you have a machine
1521 based on the Armada-3700 SoC and wish to use the on-board serial
1526 config SERIAL_MVEBU_CONSOLE
1527 bool "Console on Marvell EBU serial port"
1528 depends on SERIAL_MVEBU_UART
1529 select SERIAL_CORE_CONSOLE
1530 select SERIAL_EARLYCON
1533 Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1534 (the system console is the device which receives all kernel messages
1535 and warnings and which allows logins in single user mode)
1539 tristate "Actions Semi Owl serial port support"
1540 depends on ARCH_ACTIONS || COMPILE_TEST
1543 This driver is for Actions Semiconductor S500/S900 SoC's UART.
1544 Say 'Y' here if you wish to use the on-board serial port.
1547 config SERIAL_OWL_CONSOLE
1548 bool "Console on Actions Semi Owl serial port"
1549 depends on SERIAL_OWL=y
1550 select SERIAL_CORE_CONSOLE
1551 select SERIAL_EARLYCON
1554 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART
1555 as the system console.
1558 bool "RDA Micro serial port support"
1559 depends on ARCH_RDA || COMPILE_TEST
1562 This driver is for RDA8810PL SoC's UART.
1563 Say 'Y' here if you wish to use the on-board serial port.
1566 config SERIAL_RDA_CONSOLE
1567 bool "Console on RDA Micro serial port"
1568 depends on SERIAL_RDA=y
1569 select SERIAL_CORE_CONSOLE
1570 select SERIAL_EARLYCON
1573 Say 'Y' here if you wish to use the RDA8810PL UART as the system
1574 console. Only earlycon is implemented currently.
1576 config SERIAL_MILBEAUT_USIO
1577 tristate "Milbeaut USIO/UART serial port support"
1578 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF)
1579 default ARCH_MILBEAUT
1582 This selects the USIO/UART IP found in Socionext Milbeaut SoCs.
1584 config SERIAL_MILBEAUT_USIO_PORTS
1585 int "Maximum number of CSIO/UART ports (1-8)"
1587 depends on SERIAL_MILBEAUT_USIO
1590 config SERIAL_MILBEAUT_USIO_CONSOLE
1591 bool "Support for console on MILBEAUT USIO/UART serial port"
1592 depends on SERIAL_MILBEAUT_USIO=y
1594 select SERIAL_CORE_CONSOLE
1595 select SERIAL_EARLYCON
1597 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut
1598 SoCs as the system console (the system console is the device which
1599 receives all kernel messages and warnings and which allows logins in
1604 config SERIAL_MCTRL_GPIO