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 "Marvell MPSC serial port support"
465 Say Y here if you want to use the Marvell MPSC serial controller.
467 config SERIAL_MPSC_CONSOLE
468 bool "Support for console on Marvell MPSC serial port"
469 depends on SERIAL_MPSC
470 select SERIAL_CORE_CONSOLE
472 Say Y here if you want to support a serial console on a Marvell MPSC.
475 bool "PXA serial port support (DEPRECATED)"
476 depends on ARCH_PXA || ARCH_MMP
478 select SERIAL_8250_PXA if SERIAL_8250=y
479 select SERIAL_PXA_NON8250 if !SERIAL_8250=y
481 If you have a machine based on an Intel XScale PXA2xx CPU you
482 can enable its onboard serial ports by enabling this option.
484 Unless you have a specific need, you should use SERIAL_8250_PXA
487 config SERIAL_PXA_NON8250
489 depends on !SERIAL_8250
491 config SERIAL_PXA_CONSOLE
492 bool "Console on PXA serial port (DEPRECATED)"
493 depends on SERIAL_PXA
494 select SERIAL_CORE_CONSOLE
495 select SERIAL_8250_CONSOLE if SERIAL_8250=y
497 If you have enabled the serial port on the Intel XScale PXA
498 CPU you can make it the console by answering Y to this option.
500 Even if you say Y here, the currently visible virtual console
501 (/dev/tty0) will still be used as the system console by default, but
502 you can alter that using a kernel command line option such as
503 "console=ttySA0". (Try "man bootparam" or see the documentation of
504 your boot loader (lilo or loadlin) about how to pass options to the
505 kernel at boot time.)
507 Unless you have a specific need, you should use SERIAL_8250_PXA
508 and SERIAL_8250_CONSOLE instead of this.
511 bool "SA1100 serial port support"
512 depends on ARCH_SA1100
515 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
516 can enable its onboard serial port by enabling this option.
517 Please read <file:Documentation/arm/SA1100/serial_UART> for further
520 config SERIAL_SA1100_CONSOLE
521 bool "Console on SA1100 serial port"
522 depends on SERIAL_SA1100
523 select SERIAL_CORE_CONSOLE
525 If you have enabled the serial port on the SA1100/SA1110 StrongARM
526 CPU you can make it the console by answering Y to this option.
528 Even if you say Y here, the currently visible virtual console
529 (/dev/tty0) will still be used as the system console by default, but
530 you can alter that using a kernel command line option such as
531 "console=ttySA0". (Try "man bootparam" or see the documentation of
532 your boot loader (lilo or loadlin) about how to pass options to the
533 kernel at boot time.)
536 tristate "IMX serial port support"
537 depends on ARCH_MXC || COMPILE_TEST
540 select SERIAL_MCTRL_GPIO if GPIOLIB
542 If you have a machine based on a Motorola IMX CPU you
543 can enable its onboard serial port by enabling this option.
545 config SERIAL_IMX_CONSOLE
546 bool "Console on IMX serial port"
547 depends on SERIAL_IMX=y
548 select SERIAL_CORE_CONSOLE
549 select SERIAL_EARLYCON if OF
551 If you have enabled the serial port on the Freescale IMX
552 CPU you can make it the console by answering Y to this option.
554 Even if you say Y here, the currently visible virtual console
555 (/dev/tty0) will still be used as the system console by default, but
556 you can alter that using a kernel command line option such as
557 "console=ttymxc0". (Try "man bootparam" or see the documentation of
558 your bootloader about how to pass options to the kernel at boot time.)
560 config SERIAL_UARTLITE
561 tristate "Xilinx uartlite serial port support"
565 Say Y here if you want to use the Xilinx uartlite serial controller.
567 To compile this driver as a module, choose M here: the
568 module will be called uartlite.
570 config SERIAL_UARTLITE_CONSOLE
571 bool "Support for console on Xilinx uartlite serial port"
572 depends on SERIAL_UARTLITE=y
573 select SERIAL_CORE_CONSOLE
574 select SERIAL_EARLYCON
576 Say Y here if you wish to use a Xilinx uartlite as the system
577 console (the system console is the device which receives all kernel
578 messages and warnings and which allows logins in single user mode).
580 config SERIAL_UARTLITE_NR_UARTS
581 int "Maximum number of uartlite serial ports"
582 depends on SERIAL_UARTLITE
586 Set this to the number of uartlites in your system, or the number
587 you think you might implement.
589 config SERIAL_SUNCORE
593 select SERIAL_CORE_CONSOLE
596 config SERIAL_SUNZILOG
597 tristate "Sun Zilog8530 serial support"
600 This driver supports the Zilog8530 serial ports found on many Sparc
601 systems. Say Y or M if you want to be able to these serial ports.
603 config SERIAL_SUNZILOG_CONSOLE
604 bool "Console on Sun Zilog8530 serial port"
605 depends on SERIAL_SUNZILOG=y
607 If you would like to be able to use the Zilog8530 serial port
608 on your Sparc system as the console, you can do so by answering
612 tristate "Sun SU serial support"
613 depends on SPARC && PCI
615 This driver supports the 8250 serial ports that run the keyboard and
616 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
617 to these serial ports.
619 config SERIAL_SUNSU_CONSOLE
620 bool "Console on Sun SU serial port"
621 depends on SERIAL_SUNSU=y
623 If you would like to be able to use the SU serial port
624 on your Sparc system as the console, you can do so by answering
628 tristate "Serial MUX support"
633 Saying Y here will enable the hardware MUX serial driver for
634 the Nova, K class systems and D class with a 'remote control card'.
635 The hardware MUX is not 8250/16550 compatible therefore the
636 /dev/ttyB0 device is shared between the Serial MUX and the PDC
637 software console. The following steps need to be completed to use
640 1. create the device entry (mknod /dev/ttyB0 c 11 0)
641 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
642 3. Add device ttyB0 to /etc/securetty (if you want to log on as
643 root on this console.)
644 4. Change the kernel command console parameter to: console=ttyB0
646 config SERIAL_MUX_CONSOLE
647 bool "Support for console on serial MUX"
648 depends on SERIAL_MUX=y
649 select SERIAL_CORE_CONSOLE
653 bool "PDC software console support"
654 depends on PARISC && !SERIAL_MUX && VT
656 Saying Y here will enable the software based PDC console to be
657 used as the system console. This is useful for machines in
658 which the hardware based console has not been written yet. The
659 following steps must be completed to use the PDC console:
661 1. create the device entry (mknod /dev/ttyB0 c 11 0)
662 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
663 3. Add device ttyB0 to /etc/securetty (if you want to log on as
664 root on this console.)
665 4. Change the kernel command console parameter to: console=ttyB0
668 tristate "Sun Siemens SAB82532 serial support"
669 depends on SPARC && PCI
671 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
672 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
675 config SERIAL_SUNSAB_CONSOLE
676 bool "Console on Sun Siemens SAB82532 serial port"
677 depends on SERIAL_SUNSAB=y
679 If you would like to be able to use the SAB82532 serial port
680 on your Sparc system as the console, you can do so by answering
684 bool "Sun4v Hypervisor Console support"
687 This driver supports the console device found on SUN4V Sparc
688 systems. Say Y if you want to be able to use this device.
690 config SERIAL_IP22_ZILOG
691 tristate "SGI Zilog8530 serial support"
692 depends on SGI_HAS_ZILOG
695 This driver supports the Zilog8530 serial ports found on SGI
696 systems. Say Y or M if you want to be able to these serial ports.
698 config SERIAL_IP22_ZILOG_CONSOLE
699 bool "Console on SGI Zilog8530 serial port"
700 depends on SERIAL_IP22_ZILOG=y
701 select SERIAL_CORE_CONSOLE
704 tristate "SuperH SCI(F) serial port support"
705 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
707 select SERIAL_MCTRL_GPIO if GPIOLIB
709 config SERIAL_SH_SCI_NR_UARTS
710 int "Maximum number of SCI(F) serial ports" if EXPERT
713 depends on SERIAL_SH_SCI
715 default "10" if SUPERH
716 default "18" if ARCH_RENESAS
719 config SERIAL_SH_SCI_CONSOLE
720 bool "Support for console on SuperH SCI(F)" if EXPERT
721 depends on SERIAL_SH_SCI=y
722 select SERIAL_CORE_CONSOLE
725 config SERIAL_SH_SCI_EARLYCON
726 bool "Support for early console on SuperH SCI(F)" if EXPERT
727 depends on SERIAL_SH_SCI=y
728 select SERIAL_CORE_CONSOLE
729 select SERIAL_EARLYCON
730 default ARCH_RENESAS || H8300
732 config SERIAL_SH_SCI_DMA
733 bool "DMA support" if EXPERT
734 depends on SERIAL_SH_SCI && DMA_ENGINE
737 config SERIAL_PNX8XXX
738 bool "Enable PNX8XXX SoCs' UART Support"
739 depends on SOC_PNX833X
742 If you have a MIPS-based Philips SoC such as PNX8330 and you want
743 to use serial ports, say Y. Otherwise, say N.
745 config SERIAL_PNX8XXX_CONSOLE
746 bool "Enable PNX8XX0 serial console"
747 depends on SERIAL_PNX8XXX
748 select SERIAL_CORE_CONSOLE
750 If you have a MIPS-based Philips SoC such as PNX8330 and you want
751 to use serial console, say Y. Otherwise, say N.
753 config SERIAL_HS_LPC32XX
754 tristate "LPC32XX high speed serial port support"
755 depends on ARCH_LPC32XX && OF
758 Support for the LPC32XX high speed serial ports (up to 900kbps).
759 Those are UARTs completely different from the Standard UARTs on the
761 Choose M or Y here to build this driver.
763 config SERIAL_HS_LPC32XX_CONSOLE
764 bool "Enable LPC32XX high speed UART serial console"
765 depends on SERIAL_HS_LPC32XX=y
766 select SERIAL_CORE_CONSOLE
768 If you would like to be able to use one of the high speed serial
769 ports on the LPC32XX as the console, you can do so by answering
775 config SERIAL_CORE_CONSOLE
782 bool "Coldfire serial support"
786 This serial driver supports the Freescale Coldfire serial ports.
788 config SERIAL_MCF_BAUDRATE
789 int "Default baudrate for Coldfire serial ports"
790 depends on SERIAL_MCF
793 This setting lets you define what the default baudrate is for the
794 ColdFire serial ports. The usual default varies from board to board,
795 and this setting is a way of catering for that.
797 config SERIAL_MCF_CONSOLE
798 bool "Coldfire serial console support"
799 depends on SERIAL_MCF
800 select SERIAL_CORE_CONSOLE
802 Enable a ColdFire internal serial port to be the system console.
804 config SERIAL_PMACZILOG
805 tristate "Mac or PowerMac z85c30 ESCC support"
806 depends on (M68K && MAC) || PPC_PMAC
809 This driver supports the Zilog z85C30 serial ports found on
811 Say Y or M if you want to be able to these serial ports.
813 config SERIAL_PMACZILOG_TTYS
814 bool "Use ttySn device nodes for Zilog z85c30"
815 depends on SERIAL_PMACZILOG
817 The pmac_zilog driver for the z85C30 chip on many powermacs
818 historically used the device numbers for /dev/ttySn. The
819 8250 serial port driver also uses these numbers, which means
820 the two drivers being unable to coexist; you could not use
821 both z85C30 and 8250 type ports at the same time.
823 If this option is not selected, the pmac_zilog driver will
824 use the device numbers allocated for /dev/ttyPZn. This allows
825 the pmac_zilog and 8250 drivers to co-exist, but may cause
826 existing userspace setups to break. Programs that need to
827 access the built-in serial ports on powermacs will need to
828 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
830 If you enable this option, any z85c30 ports in the system will
831 be registered as ttyS0 onwards as in the past, and you will be
832 unable to use the 8250 module for PCMCIA or other 16C550-style
835 Say N unless you need the z85c30 ports on your (Power)Mac
836 to appear as /dev/ttySn.
838 config SERIAL_PMACZILOG_CONSOLE
839 bool "Console on Mac or PowerMac z85c30 serial port"
840 depends on SERIAL_PMACZILOG=y
841 select SERIAL_CORE_CONSOLE
843 If you would like to be able to use the z85c30 serial port
844 on your (Power)Mac as the console, you can do so by answering
848 tristate "CPM SCC/SMC serial port support"
849 depends on CPM2 || CPM1
852 This driver supports the SCC and SMC serial ports on Motorola
853 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
855 config SERIAL_CPM_CONSOLE
856 bool "Support for console on CPM SCC/SMC serial port"
857 depends on SERIAL_CPM=y
858 select SERIAL_CORE_CONSOLE
860 Say Y here if you wish to use a SCC or SMC CPM UART as the system
861 console (the system console is the device which receives all kernel
862 messages and warnings and which allows logins in single user mode).
864 Even if you say Y here, the currently visible framebuffer console
865 (/dev/tty0) will still be used as the system console by default, but
866 you can alter that using a kernel command line option such as
867 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
868 your boot loader (lilo or loadlin) about how to pass options to the
869 kernel at boot time.)
871 config SERIAL_SGI_L1_CONSOLE
872 bool "SGI Altix L1 serial console support"
873 depends on IA64_GENERIC || IA64_SGI_SN2
875 select SERIAL_CORE_CONSOLE
877 If you have an SGI Altix and you would like to use the system
878 controller serial port as your console (you want this!),
879 say Y. Otherwise, say N.
882 tristate "Microchip PIC32 serial support"
883 depends on MACH_PIC32
886 If you have a PIC32, this driver supports the serial ports.
888 Say Y or M to use PIC32 serial ports, otherwise say N. Note that
889 to use a serial port as a console, this must be included in kernel and
892 config SERIAL_PIC32_CONSOLE
893 bool "PIC32 serial console support"
894 depends on SERIAL_PIC32
895 select SERIAL_CORE_CONSOLE
897 If you have a PIC32, this driver supports the putting a console on one
900 Say Y to use the PIC32 console, otherwise say N.
902 config SERIAL_MPC52xx
903 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
904 depends on PPC_MPC52xx || PPC_MPC512x
907 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
908 like to use them, you must answer Y or M to this option. Note that
909 for use as console, it must be included in kernel and not as a
912 config SERIAL_MPC52xx_CONSOLE
913 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
914 depends on SERIAL_MPC52xx=y
915 select SERIAL_CORE_CONSOLE
917 Select this options if you'd like to use one of the PSC serial port
918 of the Freescale MPC52xx family as a console.
920 config SERIAL_MPC52xx_CONSOLE_BAUD
921 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
922 depends on SERIAL_MPC52xx_CONSOLE=y
925 Select the MPC52xx console baud rate.
926 This value is only used if the bootloader doesn't pass in the
930 tristate "IBM Multiport Serial Adapter"
931 depends on PCI && PPC_PSERIES
935 This driver is for a family of multiport serial adapters
936 including 2 port RVX, 2 port internal modem, 4 port internal
937 modem and a split 1 port RVX and 1 port internal modem.
939 This driver can also be built as a module. If so, the module
943 bool "TMPTX39XX/49XX SIO support"
944 depends on HAS_TXX9_SERIAL
948 config HAS_TXX9_SERIAL
951 config SERIAL_TXX9_NR_UARTS
952 int "Maximum number of TMPTX39XX/49XX SIO ports"
953 depends on SERIAL_TXX9
956 config SERIAL_TXX9_CONSOLE
957 bool "TMPTX39XX/49XX SIO Console support"
958 depends on SERIAL_TXX9=y
959 select SERIAL_CORE_CONSOLE
961 config SERIAL_TXX9_STDSERIAL
962 bool "TX39XX/49XX SIO act as standard serial"
963 depends on !SERIAL_8250 && SERIAL_TXX9
966 tristate "NEC VR4100 series Serial Interface Unit support"
967 depends on CPU_VR41XX
970 If you have a NEC VR4100 series processor and you want to use
971 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
972 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
974 config SERIAL_VR41XX_CONSOLE
975 bool "Enable NEC VR4100 series Serial Interface Unit console"
976 depends on SERIAL_VR41XX=y
977 select SERIAL_CORE_CONSOLE
979 If you have a NEC VR4100 series processor and you want to use
980 a console on a serial port, say Y. Otherwise, say N.
983 tristate "Digi International NEO and Classic PCI Support"
987 This is a driver for Digi International's Neo and Classic series
988 of cards which provide multiple serial ports. You would need
989 something like this to connect more than two modems to your Linux
990 box, for instance in order to become a dial-in server. This driver
991 supports PCI boards only.
993 If you have a card like this, say Y here, otherwise say N.
995 To compile this driver as a module, choose M here: the
996 module will be called jsm.
998 config SERIAL_SGI_IOC4
999 tristate "SGI IOC4 controller serial support"
1000 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1003 If you have an SGI Altix with an IOC4 based Base IO card
1004 and wish to use the serial ports on this card, say Y.
1007 config SERIAL_SGI_IOC3
1008 tristate "SGI Altix IOC3 serial support"
1009 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1012 If you have an SGI Altix with an IOC3 serial card,
1013 say Y or M. Otherwise, say N.
1016 tristate "MSM on-chip serial port support"
1017 depends on ARCH_QCOM
1020 config SERIAL_MSM_CONSOLE
1021 bool "MSM serial console support"
1022 depends on SERIAL_MSM=y
1023 select SERIAL_CORE_CONSOLE
1024 select SERIAL_EARLYCON
1026 config SERIAL_QCOM_GENI
1027 tristate "QCOM on-chip GENI based serial port support"
1028 depends on ARCH_QCOM || COMPILE_TEST
1029 depends on QCOM_GENI_SE
1032 config SERIAL_QCOM_GENI_CONSOLE
1033 bool "QCOM GENI Serial Console support"
1034 depends on SERIAL_QCOM_GENI=y
1035 select SERIAL_CORE_CONSOLE
1036 select SERIAL_EARLYCON
1038 Serial console driver for Qualcomm Technologies Inc's GENI based
1041 config SERIAL_VT8500
1042 bool "VIA VT8500 on-chip serial port support"
1043 depends on ARCH_VT8500
1046 config SERIAL_VT8500_CONSOLE
1047 bool "VIA VT8500 serial console support"
1048 depends on SERIAL_VT8500=y
1049 select SERIAL_CORE_CONSOLE
1052 tristate "NetX serial port support"
1053 depends on ARCH_NETX
1056 If you have a machine based on a Hilscher NetX SoC you
1057 can enable its onboard serial port by enabling this option.
1059 To compile this driver as a module, choose M here: the
1060 module will be called netx-serial.
1062 config SERIAL_NETX_CONSOLE
1063 bool "Console on NetX serial port"
1064 depends on SERIAL_NETX=y
1065 select SERIAL_CORE_CONSOLE
1067 If you have enabled the serial port on the Hilscher NetX SoC
1068 you can make it the console by answering Y to this option.
1071 tristate "OMAP serial port support"
1072 depends on ARCH_OMAP2PLUS
1075 If you have a machine based on an Texas Instruments OMAP CPU you
1076 can enable its onboard serial ports by enabling this option.
1078 By enabling this option you take advantage of dma feature available
1079 with the omap-serial driver. DMA support can be enabled from platform
1082 config SERIAL_OMAP_CONSOLE
1083 bool "Console on OMAP serial port"
1084 depends on SERIAL_OMAP=y
1085 select SERIAL_CORE_CONSOLE
1087 Select this option if you would like to use omap serial port as
1090 Even if you say Y here, the currently visible virtual console
1091 (/dev/tty0) will still be used as the system console by default, but
1092 you can alter that using a kernel command line option such as
1093 "console=ttyOx". (Try "man bootparam" or see the documentation of
1094 your boot loader about how to pass options to the kernel at
1097 config SERIAL_SIFIVE
1098 tristate "SiFive UART support"
1102 Select this option if you are building a kernel for a device that
1103 contains a SiFive UART IP block. This type of UART is present on
1104 SiFive FU540 SoCs, among others.
1106 config SERIAL_SIFIVE_CONSOLE
1107 bool "Console on SiFive UART"
1108 depends on SERIAL_SIFIVE=y
1109 select SERIAL_CORE_CONSOLE
1111 Select this option if you would like to use a SiFive UART as the
1114 Even if you say Y here, the currently visible virtual console
1115 (/dev/tty0) will still be used as the system console by default, but
1116 you can alter that using a kernel command line option such as
1117 "console=ttySIFx". (Try "man bootparam" or see the documentation of
1118 your boot loader about how to pass options to the kernel at
1121 config SERIAL_LANTIQ
1122 bool "Lantiq serial driver"
1125 select SERIAL_CORE_CONSOLE
1126 select SERIAL_EARLYCON
1128 Support for console and UART on Lantiq SoCs.
1131 tristate "Freescale QUICC Engine serial port support"
1132 depends on QUICC_ENGINE
1136 This driver supports the QE serial ports on Freescale embedded
1137 PowerPC that contain a QUICC Engine.
1139 config SERIAL_SCCNXP
1140 tristate "SCCNXP serial port support"
1143 This selects support for an advanced UART from NXP (Philips).
1144 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1145 SC28L202, SCC68681 and SCC68692.
1147 config SERIAL_SCCNXP_CONSOLE
1148 bool "Console on SCCNXP serial port"
1149 depends on SERIAL_SCCNXP=y
1150 select SERIAL_CORE_CONSOLE
1152 Support for console on SCCNXP serial ports.
1154 config SERIAL_SC16IS7XX_CORE
1157 config SERIAL_SC16IS7XX
1158 tristate "SC16IS7xx serial support"
1160 depends on (SPI_MASTER && !I2C) || I2C
1162 This selects support for SC16IS7xx serial ports.
1163 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1164 SC16IS760 and SC16IS762. Select supported buses using options below.
1166 config SERIAL_SC16IS7XX_I2C
1167 bool "SC16IS7xx for I2C interface"
1168 depends on SERIAL_SC16IS7XX
1170 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1171 select REGMAP_I2C if I2C
1174 Enable SC16IS7xx driver on I2C bus,
1175 If required say y, and say n to i2c if not required,
1176 Enabled by default to support oldconfig.
1177 You must select at least one bus for the driver to be built.
1179 config SERIAL_SC16IS7XX_SPI
1180 bool "SC16IS7xx for spi interface"
1181 depends on SERIAL_SC16IS7XX
1182 depends on SPI_MASTER
1183 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1184 select REGMAP_SPI if SPI_MASTER
1186 Enable SC16IS7xx driver on SPI bus,
1187 If required say y, and say n to spi if not required,
1188 This is additional support to exsisting driver.
1189 You must select at least one bus for the driver to be built.
1191 config SERIAL_TIMBERDALE
1192 tristate "Support for timberdale UART"
1194 depends on X86_32 || COMPILE_TEST
1196 Add support for UART controller on timberdale.
1198 config SERIAL_BCM63XX
1199 tristate "Broadcom BCM63xx/BCM33xx UART support"
1201 depends on MIPS || ARM || COMPILE_TEST
1203 This enables the driver for the onchip UART core found on
1204 the following chipsets:
1206 BCM33xx (cable modem)
1207 BCM63xx/BCM63xxx (DSL)
1209 BCM7xxx (STB) - DOCSIS console
1211 config SERIAL_BCM63XX_CONSOLE
1212 bool "Console on BCM63xx serial port"
1213 depends on SERIAL_BCM63XX=y
1214 select SERIAL_CORE_CONSOLE
1215 select SERIAL_EARLYCON
1217 If you have enabled the serial port on the BCM63xx CPU
1218 you can make it the console by answering Y to this option.
1220 config SERIAL_GRLIB_GAISLER_APBUART
1221 tristate "GRLIB APBUART serial support"
1222 depends on OF && SPARC
1225 Add support for the GRLIB APBUART serial port.
1227 config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1228 bool "Console on GRLIB APBUART serial port"
1229 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1230 select SERIAL_CORE_CONSOLE
1232 Support for running a console on the GRLIB APBUART
1234 config SERIAL_ALTERA_JTAGUART
1235 tristate "Altera JTAG UART support"
1238 This driver supports the Altera JTAG UART port.
1240 config SERIAL_ALTERA_JTAGUART_CONSOLE
1241 bool "Altera JTAG UART console support"
1242 depends on SERIAL_ALTERA_JTAGUART=y
1243 select SERIAL_CORE_CONSOLE
1244 select SERIAL_EARLYCON
1246 Enable a Altera JTAG UART port to be the system console.
1248 config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1249 bool "Bypass output when no connection"
1250 depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1251 select SERIAL_CORE_CONSOLE
1253 Bypass console output and keep going even if there is no
1254 JTAG terminal connection with the host.
1256 config SERIAL_ALTERA_UART
1257 tristate "Altera UART support"
1260 This driver supports the Altera softcore UART port.
1262 config SERIAL_ALTERA_UART_MAXPORTS
1263 int "Maximum number of Altera UART ports"
1264 depends on SERIAL_ALTERA_UART
1267 This setting lets you define the maximum number of the Altera
1268 UART ports. The usual default varies from board to board, and
1269 this setting is a way of catering for that.
1271 config SERIAL_ALTERA_UART_BAUDRATE
1272 int "Default baudrate for Altera UART ports"
1273 depends on SERIAL_ALTERA_UART
1276 This setting lets you define what the default baudrate is for the
1277 Altera UART ports. The usual default varies from board to board,
1278 and this setting is a way of catering for that.
1280 config SERIAL_ALTERA_UART_CONSOLE
1281 bool "Altera UART console support"
1282 depends on SERIAL_ALTERA_UART=y
1283 select SERIAL_CORE_CONSOLE
1284 select SERIAL_EARLYCON
1286 Enable a Altera UART port to be the system console.
1288 config SERIAL_IFX6X60
1289 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1290 depends on GPIOLIB || COMPILE_TEST
1291 depends on SPI && HAS_DMA
1293 Support for the IFX6x60 modem devices on Intel MID platforms.
1295 config SERIAL_PCH_UART
1296 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1297 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
1300 This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1301 which is an IOH(Input/Output Hub) for x86 embedded processor.
1302 Enabling PCH_DMA, this PCH UART works as DMA mode.
1304 This driver also can be used for LAPIS Semiconductor IOH(Input/
1305 Output Hub), ML7213, ML7223 and ML7831.
1306 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1307 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1308 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1309 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1311 config SERIAL_PCH_UART_CONSOLE
1312 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1313 depends on SERIAL_PCH_UART=y
1314 select SERIAL_CORE_CONSOLE
1316 Say Y here if you wish to use the PCH UART as the system console
1317 (the system console is the device which receives all kernel messages and
1318 warnings and which allows logins in single user mode).
1320 config SERIAL_MXS_AUART
1321 tristate "MXS AUART support"
1322 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1324 select SERIAL_MCTRL_GPIO if GPIOLIB
1326 This driver supports the MXS and Alphascale ASM9260 Application
1329 config SERIAL_MXS_AUART_CONSOLE
1330 bool "MXS AUART console support"
1331 depends on SERIAL_MXS_AUART=y
1332 select SERIAL_CORE_CONSOLE
1334 Enable a MXS AUART port to be the system console.
1336 config SERIAL_XILINX_PS_UART
1337 tristate "Cadence (Xilinx Zynq) UART support"
1341 This driver supports the Cadence UART. It is found e.g. in Xilinx
1344 config SERIAL_XILINX_PS_UART_CONSOLE
1345 bool "Cadence UART console support"
1346 depends on SERIAL_XILINX_PS_UART=y
1347 select SERIAL_CORE_CONSOLE
1348 select SERIAL_EARLYCON
1350 Enable a Cadence UART port to be the system console.
1352 config SERIAL_AR933X
1353 tristate "AR933X serial port support"
1354 depends on HAVE_CLK && ATH79
1357 If you have an Atheros AR933X SOC based board and want to use the
1358 built-in UART of the SoC, say Y to this option.
1360 To compile this driver as a module, choose M here: the
1361 module will be called ar933x_uart.
1363 config SERIAL_AR933X_CONSOLE
1364 bool "Console on AR933X serial port"
1365 depends on SERIAL_AR933X=y
1366 select SERIAL_CORE_CONSOLE
1368 Enable a built-in UART port of the AR933X to be the system console.
1370 config SERIAL_AR933X_NR_UARTS
1371 int "Maximum number of AR933X serial ports"
1372 depends on SERIAL_AR933X
1375 Set this to the number of serial ports you want the driver
1378 config SERIAL_EFM32_UART
1379 tristate "EFM32 UART/USART port"
1380 depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1383 This driver support the USART and UART ports on
1384 Energy Micro's efm32 SoCs.
1386 config SERIAL_MPS2_UART_CONSOLE
1387 bool "MPS2 UART console support"
1388 depends on SERIAL_MPS2_UART
1389 select SERIAL_CORE_CONSOLE
1390 select SERIAL_EARLYCON
1392 config SERIAL_MPS2_UART
1393 bool "MPS2 UART port"
1394 depends on ARCH_MPS2 || COMPILE_TEST
1397 This driver support the UART ports on ARM MPS2.
1399 config SERIAL_EFM32_UART_CONSOLE
1400 bool "EFM32 UART/USART console support"
1401 depends on SERIAL_EFM32_UART=y
1402 select SERIAL_CORE_CONSOLE
1405 tristate "ARC UART driver support"
1408 Driver for on-chip UART for ARC(Synopsys) for the legacy
1409 FPGA Boards (ML50x/ARCAngel4)
1411 config SERIAL_ARC_CONSOLE
1412 bool "Console on ARC UART"
1413 depends on SERIAL_ARC=y
1414 select SERIAL_CORE_CONSOLE
1415 select SERIAL_EARLYCON
1417 Enable system Console on ARC UART
1419 config SERIAL_ARC_NR_PORTS
1420 int "Number of ARC UART ports"
1421 depends on SERIAL_ARC
1425 Set this to the number of serial ports you want the driver
1429 tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1433 This driver supports the Comtrol RocketPort EXPRESS and
1434 RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1435 These adapters use a "RocketPort 2" ASIC that is not compatible
1436 with the original RocketPort driver (CONFIG_ROCKETPORT).
1438 To compile this driver as a module, choose M here: the
1439 module will be called rp2.
1441 If you want to compile this driver into the kernel, say Y here. If
1442 you don't have a suitable RocketPort card installed, say N.
1444 config SERIAL_RP2_NR_UARTS
1445 int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1446 depends on SERIAL_RP2
1449 If multiple cards are present, the default limit of 32 ports may
1450 need to be increased.
1452 config SERIAL_FSL_LPUART
1453 tristate "Freescale lpuart serial port support"
1457 Support for the on-chip lpuart on some Freescale SOCs.
1459 config SERIAL_FSL_LPUART_CONSOLE
1460 bool "Console on Freescale lpuart serial port"
1461 depends on SERIAL_FSL_LPUART=y
1462 select SERIAL_CORE_CONSOLE
1463 select SERIAL_EARLYCON
1465 If you have enabled the lpuart serial port on the Freescale SoCs,
1466 you can make it the console by answering Y to this option.
1468 config SERIAL_CONEXANT_DIGICOLOR
1469 tristate "Conexant Digicolor CX92xxx USART serial port support"
1473 Support for the on-chip USART on Conexant Digicolor SoCs.
1475 config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1476 bool "Console on Conexant Digicolor serial port"
1477 depends on SERIAL_CONEXANT_DIGICOLOR=y
1478 select SERIAL_CORE_CONSOLE
1480 If you have enabled the USART serial port on Conexant Digicolor
1481 SoCs, you can make it the console by answering Y to this option.
1483 config SERIAL_ST_ASC
1484 tristate "ST ASC serial port support"
1486 depends on ARM || COMPILE_TEST
1488 This driver is for the on-chip Asychronous Serial Controller on
1489 STMicroelectronics STi SoCs.
1490 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1491 It support all industry standard baud rates.
1495 config SERIAL_ST_ASC_CONSOLE
1496 bool "Support for console on ST ASC"
1497 depends on SERIAL_ST_ASC=y
1498 select SERIAL_CORE_CONSOLE
1500 config SERIAL_MEN_Z135
1501 tristate "MEN 16z135 Support"
1505 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1508 This driver can also be build as a module. If so, the module will be called
1512 tristate "Support for Spreadtrum serial"
1513 depends on ARCH_SPRD
1516 This enables the driver for the Spreadtrum's serial.
1518 config SERIAL_SPRD_CONSOLE
1519 bool "Spreadtrum UART console support"
1520 depends on SERIAL_SPRD=y
1521 select SERIAL_CORE_CONSOLE
1522 select SERIAL_EARLYCON
1524 Support for early debug console using Spreadtrum's serial. This enables
1525 the console before standard serial driver is probed. This is enabled
1526 with "earlycon" on the kernel command line. The console is
1527 enabled when early_param is processed.
1530 tristate "STMicroelectronics STM32 serial port support"
1532 depends on ARCH_STM32 || COMPILE_TEST
1534 This driver is for the on-chip Serial Controller on
1535 STMicroelectronics STM32 MCUs.
1536 USART supports Rx & Tx functionality.
1537 It support all industry standard baud rates.
1541 config SERIAL_STM32_CONSOLE
1542 bool "Support for console on STM32"
1543 depends on SERIAL_STM32=y
1544 select SERIAL_CORE_CONSOLE
1546 config SERIAL_MVEBU_UART
1547 bool "Marvell EBU serial port support"
1548 depends on ARCH_MVEBU || COMPILE_TEST
1551 This driver is for Marvell EBU SoC's UART. If you have a machine
1552 based on the Armada-3700 SoC and wish to use the on-board serial
1557 config SERIAL_MVEBU_CONSOLE
1558 bool "Console on Marvell EBU serial port"
1559 depends on SERIAL_MVEBU_UART
1560 select SERIAL_CORE_CONSOLE
1561 select SERIAL_EARLYCON
1564 Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1565 (the system console is the device which receives all kernel messages
1566 and warnings and which allows logins in single user mode)
1570 tristate "Actions Semi Owl serial port support"
1571 depends on ARCH_ACTIONS || COMPILE_TEST
1574 This driver is for Actions Semiconductor S500/S900 SoC's UART.
1575 Say 'Y' here if you wish to use the on-board serial port.
1578 config SERIAL_OWL_CONSOLE
1579 bool "Console on Actions Semi Owl serial port"
1580 depends on SERIAL_OWL=y
1581 select SERIAL_CORE_CONSOLE
1582 select SERIAL_EARLYCON
1585 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART
1586 as the system console.
1589 bool "RDA Micro serial port support"
1590 depends on ARCH_RDA || COMPILE_TEST
1593 This driver is for RDA8810PL SoC's UART.
1594 Say 'Y' here if you wish to use the on-board serial port.
1597 config SERIAL_RDA_CONSOLE
1598 bool "Console on RDA Micro serial port"
1599 depends on SERIAL_RDA=y
1600 select SERIAL_CORE_CONSOLE
1601 select SERIAL_EARLYCON
1604 Say 'Y' here if you wish to use the RDA8810PL UART as the system
1605 console. Only earlycon is implemented currently.
1607 config SERIAL_MILBEAUT_USIO
1608 tristate "Milbeaut USIO/UART serial port support"
1609 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF)
1610 default ARCH_MILBEAUT
1613 This selects the USIO/UART IP found in Socionext Milbeaut SoCs.
1615 config SERIAL_MILBEAUT_USIO_PORTS
1616 int "Maximum number of CSIO/UART ports (1-8)"
1618 depends on SERIAL_MILBEAUT_USIO
1621 config SERIAL_MILBEAUT_USIO_CONSOLE
1622 bool "Support for console on MILBEAUT USIO/UART serial port"
1623 depends on SERIAL_MILBEAUT_USIO=y
1625 select SERIAL_CORE_CONSOLE
1626 select SERIAL_EARLYCON
1628 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut
1629 SoCs as the system console (the system console is the device which
1630 receives all kernel messages and warnings and which allows logins in
1635 config SERIAL_MCTRL_GPIO