1 # SPDX-License-Identifier: GPL-2.0
3 # Serial device configuration
11 depends on SERIAL_CORE
13 Support for early consoles with the earlycon parameter. This enables
14 the console before standard serial driver is probed. The console is
15 enabled when early_param is processed.
17 source "drivers/tty/serial/8250/Kconfig"
19 comment "Non-8250 serial port support"
21 config SERIAL_AMBA_PL010
22 tristate "ARM AMBA PL010 serial port support"
26 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have
27 an Integrator/AP or Integrator/PP2 platform, or if you have a
28 Cirrus Logic EP93xx CPU, say Y or M here.
32 config SERIAL_AMBA_PL010_CONSOLE
33 bool "Support for console on AMBA serial port"
34 depends on SERIAL_AMBA_PL010=y
35 select SERIAL_CORE_CONSOLE
37 Say Y here if you wish to use an AMBA PrimeCell UART as the system
38 console (the system console is the device which receives all kernel
39 messages and warnings and which allows logins in single user mode).
41 Even if you say Y here, the currently visible framebuffer console
42 (/dev/tty0) will still be used as the system console by default, but
43 you can alter that using a kernel command line option such as
44 "console=ttyAM0". (Try "man bootparam" or see the documentation of
45 your boot loader (lilo or loadlin) about how to pass options to the
48 config SERIAL_AMBA_PL011
49 tristate "ARM AMBA PL011 serial port support"
53 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have
54 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
59 config SERIAL_AMBA_PL011_CONSOLE
60 bool "Support for console on AMBA serial port"
61 depends on SERIAL_AMBA_PL011=y
62 select SERIAL_CORE_CONSOLE
63 select SERIAL_EARLYCON
65 Say Y here if you wish to use an AMBA PrimeCell UART as the system
66 console (the system console is the device which receives all kernel
67 messages and warnings and which allows logins in single user mode).
69 Even if you say Y here, the currently visible framebuffer console
70 (/dev/tty0) will still be used as the system console by default, but
71 you can alter that using a kernel command line option such as
72 "console=ttyAMA0". (Try "man bootparam" or see the documentation of
73 your boot loader (lilo or loadlin) about how to pass options to the
76 config SERIAL_EARLYCON_ARM_SEMIHOST
77 bool "Early console using ARM semihosting"
78 depends on ARM64 || ARM
80 select SERIAL_CORE_CONSOLE
81 select SERIAL_EARLYCON
83 Support for early debug console using ARM semihosting. This enables
84 the console before standard serial driver is probed. This is enabled
85 with "earlycon=smh" on the kernel command line. The console is
86 enabled when early_param is processed.
88 config SERIAL_EARLYCON_RISCV_SBI
89 bool "Early console using RISC-V SBI"
90 depends on RISCV_SBI_V01
92 select SERIAL_CORE_CONSOLE
93 select SERIAL_EARLYCON
95 Support for early debug console using RISC-V SBI. This enables
96 the console before standard serial driver is probed. This is enabled
97 with "earlycon=sbi" on the kernel command line. The console is
98 enabled when early_param is processed.
100 config SERIAL_SB1250_DUART
101 tristate "BCM1xxx on-chip DUART serial support"
102 depends on SIBYTE_SB1xxx_SOC=y
106 Support for the asynchronous serial interface (DUART) included in
107 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
108 the letter D in DUART stands for "dual", which is how the device
109 is implemented. Depending on the SOC configuration there may be
110 one or more DUARTs available of which all are handled.
112 If unsure, say Y. To compile this driver as a module, choose M here:
113 the module will be called sb1250-duart.
115 config SERIAL_SB1250_DUART_CONSOLE
116 bool "Support for console on a BCM1xxx DUART serial port"
117 depends on SERIAL_SB1250_DUART=y
118 select SERIAL_CORE_CONSOLE
121 If you say Y here, it will be possible to use a serial port as the
122 system console (the system console is the device which receives all
123 kernel messages and warnings and which allows logins in single user
129 bool "AT91 on-chip serial port support"
130 depends on ARCH_AT91 || COMPILE_TEST
132 select SERIAL_MCTRL_GPIO if GPIOLIB
133 select MFD_AT91_USART
135 This enables the driver for the on-chip UARTs of the Atmel
138 config SERIAL_ATMEL_CONSOLE
139 bool "Support for console on AT91 serial port"
140 depends on SERIAL_ATMEL=y
141 select SERIAL_CORE_CONSOLE
143 Say Y here if you wish to use an on-chip UART on a Atmel
144 AT91 processor as the system console (the system
145 console is the device which receives all kernel messages and
146 warnings and which allows logins in single user mode).
148 config SERIAL_ATMEL_PDC
149 bool "Support DMA transfers on AT91 serial port"
150 depends on SERIAL_ATMEL
153 Say Y here if you wish to use the PDC to do DMA transfers to
154 and from the Atmel AT91 serial port. In order to
155 actually use DMA transfers, make sure that the use_dma_tx
156 and use_dma_rx members in the atmel_uart_data struct is set
157 appropriately for each port.
159 Note that break and error handling currently doesn't work
160 properly when DMA is enabled. Make sure that ports where
161 this matters don't use DMA.
163 config SERIAL_ATMEL_TTYAT
164 bool "Install as device ttyATn instead of ttySn"
165 depends on SERIAL_ATMEL=y
167 Say Y here if you wish to have the internal AT91 UARTs
168 appear as /dev/ttyATn (major 204, minor starting at 154)
169 instead of the normal /dev/ttySn (major 4, minor starting at
170 64). This is necessary if you also want other UARTs, such as
171 external 8250/16C550 compatible UARTs.
172 The ttySn nodes are legally reserved for the 8250 serial driver
173 but are often misused by other serial drivers.
175 To use this, you should create suitable ttyATn device nodes in
176 /dev/, and pass "console=ttyATn" to the kernel.
178 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
180 config SERIAL_KGDB_NMI
181 bool "Serial console over KGDB NMI debugger port"
182 depends on KGDB_SERIAL_CONSOLE
184 This special driver allows you to temporary use NMI debugger port
185 as a normal console (assuming that the port is attached to KGDB).
187 Unlike KDB's disable_nmi command, with this driver you are always
188 able to go back to the debugger using KGDB escape sequence ($3#33).
189 This is because this console driver processes the input in NMI
190 context, and thus is able to intercept the magic sequence.
192 Note that since the console interprets input and uses polling
193 communication methods, for things like PPP you still must fully
194 detach debugger port from the KGDB NMI (i.e. disable_nmi), and
200 tristate "Meson serial port support"
201 depends on ARCH_MESON
204 This enables the driver for the on-chip UARTs of the Amlogic
207 config SERIAL_MESON_CONSOLE
208 bool "Support for console on meson"
209 depends on SERIAL_MESON=y
210 select SERIAL_CORE_CONSOLE
211 select SERIAL_EARLYCON
213 Say Y here if you wish to use a Amlogic MesonX UART as the
214 system console (the system console is the device which
215 receives all kernel messages and warnings and which allows
216 logins in single user mode) as /dev/ttyAMLx.
218 config SERIAL_CLPS711X
219 tristate "CLPS711X serial port support"
220 depends on ARCH_CLPS711X || COMPILE_TEST
222 select SERIAL_MCTRL_GPIO if GPIOLIB
224 This enables the driver for the on-chip UARTs of the Cirrus
225 Logic EP711x/EP721x/EP731x processors.
227 config SERIAL_CLPS711X_CONSOLE
228 bool "Support for console on CLPS711X serial port"
229 depends on SERIAL_CLPS711X=y
230 select SERIAL_CORE_CONSOLE
232 Even if you say Y here, the currently visible virtual console
233 (/dev/tty0) will still be used as the system console by default, but
234 you can alter that using a kernel command line option such as
237 config SERIAL_SAMSUNG
238 tristate "Samsung SoC serial support"
239 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
242 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
243 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
244 provide all of these ports, depending on how the serial port
247 config SERIAL_SAMSUNG_UARTS_4
249 depends on SERIAL_SAMSUNG
250 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
252 Internal node for the common case of 4 Samsung compatible UARTs
254 config SERIAL_SAMSUNG_UARTS
256 depends on SERIAL_SAMSUNG
257 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
260 Select the number of available UART ports for the Samsung S3C
263 config SERIAL_SAMSUNG_CONSOLE
264 bool "Support for console on Samsung SoC serial port"
265 depends on SERIAL_SAMSUNG=y
266 select SERIAL_CORE_CONSOLE
267 select SERIAL_EARLYCON
269 Allow selection of the S3C24XX on-board serial ports for use as
272 Even if you say Y here, the currently visible virtual console
273 (/dev/tty0) will still be used as the system console by default, but
274 you can alter that using a kernel command line option such as
275 "console=ttySACx". (Try "man bootparam" or see the documentation of
276 your boot loader about how to pass options to the kernel at
279 config SERIAL_SIRFSOC
280 tristate "SiRF SoC Platform Serial port support"
284 Support for the on-chip UART on the CSR SiRFprimaII series,
285 providing /dev/ttySiRF0, 1 and 2 (note, some machines may not
286 provide all of these ports, depending on how the serial port
287 pins are configured).
289 config SERIAL_SIRFSOC_CONSOLE
290 bool "Support for console on SiRF SoC serial port"
291 depends on SERIAL_SIRFSOC=y
292 select SERIAL_CORE_CONSOLE
294 Even if you say Y here, the currently visible virtual console
295 (/dev/tty0) will still be used as the system console by default, but
296 you can alter that using a kernel command line option such as
297 "console=ttySiRFx". (Try "man bootparam" or see the documentation of
298 your boot loader about how to pass options to the kernel at
302 tristate "NVIDIA Tegra20/30 SoC serial controller"
303 depends on ARCH_TEGRA && TEGRA20_APB_DMA
306 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
307 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not
308 provide all of these ports, depending on how the serial port
309 are enabled). This driver uses the APB DMA to achieve higher baudrate
310 and better performance.
312 config SERIAL_TEGRA_TCU
313 tristate "NVIDIA Tegra Combined UART"
314 depends on ARCH_TEGRA && TEGRA_HSP_MBOX
317 Support for the mailbox-based TCU (Tegra Combined UART) serial port.
318 TCU is a virtual serial port that allows multiplexing multiple data
319 streams into a single hardware serial port.
321 config SERIAL_TEGRA_TCU_CONSOLE
322 bool "Support for console on a Tegra TCU serial port"
323 depends on SERIAL_TEGRA_TCU=y
324 select SERIAL_CORE_CONSOLE
327 If you say Y here, it will be possible to use a the Tegra TCU as the
328 system console (the system console is the device which receives all
329 kernel messages and warnings and which allows logins in single user
334 config SERIAL_MAX3100
335 tristate "MAX3100 support"
341 config SERIAL_MAX310X
342 tristate "MAX310X support"
343 depends on SPI_MASTER
345 select REGMAP_SPI if SPI_MASTER
347 This selects support for an advanced UART from Maxim (Dallas).
348 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830.
349 Each IC contains 128 words each of receive and transmit FIFO
350 that can be controlled through I2C or high-speed SPI.
352 Say Y here if you want to support this ICs.
355 bool "DECstation DZ serial driver"
356 depends on MACH_DECSTATION && 32BIT
360 DZ11-family serial controllers for DECstations and VAXstations,
361 including the DC7085, M7814, and M7819.
363 config SERIAL_DZ_CONSOLE
364 bool "Support console on DECstation DZ serial driver"
365 depends on SERIAL_DZ=y
366 select SERIAL_CORE_CONSOLE
369 If you say Y here, it will be possible to use a serial port as the
370 system console (the system console is the device which receives all
371 kernel messages and warnings and which allows logins in single user
374 Note that the firmware uses ttyS3 as the serial console on
375 DECstations that use this driver.
380 tristate "DECstation Z85C30 serial support"
381 depends on MACH_DECSTATION
385 Support for the Zilog 85C350 serial communications controller used
386 for serial ports in newer DECstation systems. These include the
387 DECsystem 5900 and all models of the DECstation and DECsystem 5000
388 systems except from model 200.
390 If unsure, say Y. To compile this driver as a module, choose M here:
391 the module will be called zs.
393 config SERIAL_ZS_CONSOLE
394 bool "Support for console on a DECstation Z85C30 serial port"
395 depends on SERIAL_ZS=y
396 select SERIAL_CORE_CONSOLE
399 If you say Y here, it will be possible to use a serial port as the
400 system console (the system console is the device which receives all
401 kernel messages and warnings and which allows logins in single user
404 Note that the firmware uses ttyS1 as the serial console on the
405 Maxine and ttyS3 on the others using this driver.
410 tristate "DC21285 serial port support"
411 depends on FOOTBRIDGE
414 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
415 PCI bridge you can enable its onboard serial port by enabling this
418 config SERIAL_21285_CONSOLE
419 bool "Console on DC21285 serial port"
420 depends on SERIAL_21285=y
421 select SERIAL_CORE_CONSOLE
423 If you have enabled the serial port on the 21285 footbridge you can
424 make it the console by answering Y to this option.
426 Even if you say Y here, the currently visible virtual console
427 (/dev/tty0) will still be used as the system console by default, but
428 you can alter that using a kernel command line option such as
429 "console=ttyFB". (Try "man bootparam" or see the documentation of
430 your boot loader (lilo or loadlin) about how to pass options to the
431 kernel at boot time.)
434 bool "PXA serial port support (DEPRECATED)"
435 depends on ARCH_PXA || ARCH_MMP
437 select SERIAL_8250_PXA if SERIAL_8250=y
438 select SERIAL_PXA_NON8250 if !SERIAL_8250=y
440 If you have a machine based on an Intel XScale PXA2xx CPU you
441 can enable its onboard serial ports by enabling this option.
443 Unless you have a specific need, you should use SERIAL_8250_PXA
446 config SERIAL_PXA_NON8250
448 depends on !SERIAL_8250
450 config SERIAL_PXA_CONSOLE
451 bool "Console on PXA serial port (DEPRECATED)"
452 depends on SERIAL_PXA
453 select SERIAL_CORE_CONSOLE
454 select SERIAL_8250_CONSOLE if SERIAL_8250=y
456 If you have enabled the serial port on the Intel XScale PXA
457 CPU you can make it the console by answering Y to this option.
459 Even if you say Y here, the currently visible virtual console
460 (/dev/tty0) will still be used as the system console by default, but
461 you can alter that using a kernel command line option such as
462 "console=ttySA0". (Try "man bootparam" or see the documentation of
463 your boot loader (lilo or loadlin) about how to pass options to the
464 kernel at boot time.)
466 Unless you have a specific need, you should use SERIAL_8250_PXA
467 and SERIAL_8250_CONSOLE instead of this.
470 bool "SA1100 serial port support"
471 depends on ARCH_SA1100
473 select SERIAL_MCTRL_GPIO if GPIOLIB
475 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
476 can enable its onboard serial port by enabling this option.
477 Please read <file:Documentation/arm/sa1100/serial_uart.rst> for further
480 config SERIAL_SA1100_CONSOLE
481 bool "Console on SA1100 serial port"
482 depends on SERIAL_SA1100
483 select SERIAL_CORE_CONSOLE
485 If you have enabled the serial port on the SA1100/SA1110 StrongARM
486 CPU you can make it the console by answering Y to this option.
488 Even if you say Y here, the currently visible virtual console
489 (/dev/tty0) will still be used as the system console by default, but
490 you can alter that using a kernel command line option such as
491 "console=ttySA0". (Try "man bootparam" or see the documentation of
492 your boot loader (lilo or loadlin) about how to pass options to the
493 kernel at boot time.)
496 tristate "IMX serial port support"
497 depends on ARCH_MXC || COMPILE_TEST
500 select SERIAL_MCTRL_GPIO if GPIOLIB
502 If you have a machine based on a Motorola IMX CPU you
503 can enable its onboard serial port by enabling this option.
505 config SERIAL_IMX_CONSOLE
506 tristate "Console on IMX serial port"
507 depends on SERIAL_IMX
508 select SERIAL_CORE_CONSOLE
510 If you have enabled the serial port on the Freescale IMX
511 CPU you can make it the console by answering Y/M to this option.
513 Even if you say Y/M here, the currently visible virtual console
514 (/dev/tty0) will still be used as the system console by default, but
515 you can alter that using a kernel command line option such as
516 "console=ttymxc0". (Try "man bootparam" or see the documentation of
517 your bootloader about how to pass options to the kernel at boot time.)
519 config SERIAL_IMX_EARLYCON
520 bool "Earlycon on IMX serial port"
521 depends on ARCH_MXC || COMPILE_TEST
523 select SERIAL_EARLYCON
524 select SERIAL_CORE_CONSOLE
526 If you have enabled the earlycon on the Freescale IMX
527 CPU you can make it the earlycon by answering Y to this option.
529 config SERIAL_UARTLITE
530 tristate "Xilinx uartlite serial port support"
534 Say Y here if you want to use the Xilinx uartlite serial controller.
536 To compile this driver as a module, choose M here: the
537 module will be called uartlite.
539 config SERIAL_UARTLITE_CONSOLE
540 bool "Support for console on Xilinx uartlite serial port"
541 depends on SERIAL_UARTLITE=y
542 select SERIAL_CORE_CONSOLE
543 select SERIAL_EARLYCON
545 Say Y here if you wish to use a Xilinx uartlite as the system
546 console (the system console is the device which receives all kernel
547 messages and warnings and which allows logins in single user mode).
549 config SERIAL_UARTLITE_NR_UARTS
550 int "Maximum number of uartlite serial ports"
551 depends on SERIAL_UARTLITE
555 Set this to the number of uartlites in your system, or the number
556 you think you might implement.
558 config SERIAL_SUNCORE
562 select SERIAL_CORE_CONSOLE
565 config SERIAL_SUNZILOG
566 tristate "Sun Zilog8530 serial support"
569 This driver supports the Zilog8530 serial ports found on many Sparc
570 systems. Say Y or M if you want to be able to these serial ports.
572 config SERIAL_SUNZILOG_CONSOLE
573 bool "Console on Sun Zilog8530 serial port"
574 depends on SERIAL_SUNZILOG=y
576 If you would like to be able to use the Zilog8530 serial port
577 on your Sparc system as the console, you can do so by answering
581 tristate "Sun SU serial support"
582 depends on SPARC && PCI
584 This driver supports the 8250 serial ports that run the keyboard and
585 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
586 to these serial ports.
588 config SERIAL_SUNSU_CONSOLE
589 bool "Console on Sun SU serial port"
590 depends on SERIAL_SUNSU=y
592 If you would like to be able to use the SU serial port
593 on your Sparc system as the console, you can do so by answering
597 tristate "Serial MUX support"
602 Saying Y here will enable the hardware MUX serial driver for
603 the Nova, K class systems and D class with a 'remote control card'.
604 The hardware MUX is not 8250/16550 compatible therefore the
605 /dev/ttyB0 device is shared between the Serial MUX and the PDC
606 software console. The following steps need to be completed to use
609 1. create the device entry (mknod /dev/ttyB0 c 11 0)
610 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
611 3. Add device ttyB0 to /etc/securetty (if you want to log on as
612 root on this console.)
613 4. Change the kernel command console parameter to: console=ttyB0
615 config SERIAL_MUX_CONSOLE
616 bool "Support for console on serial MUX"
617 depends on SERIAL_MUX=y
618 select SERIAL_CORE_CONSOLE
622 bool "PDC software console support"
623 depends on PARISC && !SERIAL_MUX && VT
625 Saying Y here will enable the software based PDC console to be
626 used as the system console. This is useful for machines in
627 which the hardware based console has not been written yet. The
628 following steps must be completed to use the PDC console:
630 1. create the device entry (mknod /dev/ttyB0 c 11 0)
631 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
632 3. Add device ttyB0 to /etc/securetty (if you want to log on as
633 root on this console.)
634 4. Change the kernel command console parameter to: console=ttyB0
637 tristate "Sun Siemens SAB82532 serial support"
638 depends on SPARC && PCI
640 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
641 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
644 config SERIAL_SUNSAB_CONSOLE
645 bool "Console on Sun Siemens SAB82532 serial port"
646 depends on SERIAL_SUNSAB=y
648 If you would like to be able to use the SAB82532 serial port
649 on your Sparc system as the console, you can do so by answering
653 bool "Sun4v Hypervisor Console support"
656 This driver supports the console device found on SUN4V Sparc
657 systems. Say Y if you want to be able to use this device.
659 config SERIAL_IP22_ZILOG
660 tristate "SGI Zilog8530 serial support"
661 depends on SGI_HAS_ZILOG
664 This driver supports the Zilog8530 serial ports found on SGI
665 systems. Say Y or M if you want to be able to these serial ports.
667 config SERIAL_IP22_ZILOG_CONSOLE
668 bool "Console on SGI Zilog8530 serial port"
669 depends on SERIAL_IP22_ZILOG=y
670 select SERIAL_CORE_CONSOLE
673 tristate "SuperH SCI(F) serial port support"
674 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
676 select SERIAL_MCTRL_GPIO if GPIOLIB
678 config SERIAL_SH_SCI_NR_UARTS
679 int "Maximum number of SCI(F) serial ports" if EXPERT
682 depends on SERIAL_SH_SCI
684 default "10" if SUPERH
685 default "18" if ARCH_RENESAS
688 config SERIAL_SH_SCI_CONSOLE
689 bool "Support for console on SuperH SCI(F)" if EXPERT
690 depends on SERIAL_SH_SCI=y
691 select SERIAL_CORE_CONSOLE
694 config SERIAL_SH_SCI_EARLYCON
695 bool "Support for early console on SuperH SCI(F)" if EXPERT
696 depends on SERIAL_SH_SCI=y
697 select SERIAL_CORE_CONSOLE
698 select SERIAL_EARLYCON
699 default ARCH_RENESAS || H8300
701 config SERIAL_SH_SCI_DMA
702 bool "DMA support" if EXPERT
703 depends on SERIAL_SH_SCI && DMA_ENGINE
706 config SERIAL_PNX8XXX
707 bool "Enable PNX8XXX SoCs' UART Support"
708 depends on SOC_PNX833X
711 If you have a MIPS-based Philips SoC such as PNX8330 and you want
712 to use serial ports, say Y. Otherwise, say N.
714 config SERIAL_PNX8XXX_CONSOLE
715 bool "Enable PNX8XX0 serial console"
716 depends on SERIAL_PNX8XXX
717 select SERIAL_CORE_CONSOLE
719 If you have a MIPS-based Philips SoC such as PNX8330 and you want
720 to use serial console, say Y. Otherwise, say N.
722 config SERIAL_HS_LPC32XX
723 tristate "LPC32XX high speed serial port support"
724 depends on ARCH_LPC32XX || COMPILE_TEST
728 Support for the LPC32XX high speed serial ports (up to 900kbps).
729 Those are UARTs completely different from the Standard UARTs on the
731 Choose M or Y here to build this driver.
733 config SERIAL_HS_LPC32XX_CONSOLE
734 bool "Enable LPC32XX high speed UART serial console"
735 depends on SERIAL_HS_LPC32XX=y
736 select SERIAL_CORE_CONSOLE
738 If you would like to be able to use one of the high speed serial
739 ports on the LPC32XX as the console, you can do so by answering
745 config SERIAL_CORE_CONSOLE
752 bool "Coldfire serial support"
756 This serial driver supports the Freescale Coldfire serial ports.
758 config SERIAL_MCF_BAUDRATE
759 int "Default baudrate for Coldfire serial ports"
760 depends on SERIAL_MCF
763 This setting lets you define what the default baudrate is for the
764 ColdFire serial ports. The usual default varies from board to board,
765 and this setting is a way of catering for that.
767 config SERIAL_MCF_CONSOLE
768 bool "Coldfire serial console support"
769 depends on SERIAL_MCF
770 select SERIAL_CORE_CONSOLE
772 Enable a ColdFire internal serial port to be the system console.
774 config SERIAL_PMACZILOG
775 tristate "Mac or PowerMac z85c30 ESCC support"
776 depends on (M68K && MAC) || PPC_PMAC
779 This driver supports the Zilog z85C30 serial ports found on
781 Say Y or M if you want to be able to these serial ports.
783 config SERIAL_PMACZILOG_TTYS
784 bool "Use ttySn device nodes for Zilog z85c30"
785 depends on SERIAL_PMACZILOG
787 The pmac_zilog driver for the z85C30 chip on many powermacs
788 historically used the device numbers for /dev/ttySn. The
789 8250 serial port driver also uses these numbers, which means
790 the two drivers being unable to coexist; you could not use
791 both z85C30 and 8250 type ports at the same time.
793 If this option is not selected, the pmac_zilog driver will
794 use the device numbers allocated for /dev/ttyPZn. This allows
795 the pmac_zilog and 8250 drivers to co-exist, but may cause
796 existing userspace setups to break. Programs that need to
797 access the built-in serial ports on powermacs will need to
798 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
800 If you enable this option, any z85c30 ports in the system will
801 be registered as ttyS0 onwards as in the past, and you will be
802 unable to use the 8250 module for PCMCIA or other 16C550-style
805 Say N unless you need the z85c30 ports on your (Power)Mac
806 to appear as /dev/ttySn.
808 config SERIAL_PMACZILOG_CONSOLE
809 bool "Console on Mac or PowerMac z85c30 serial port"
810 depends on SERIAL_PMACZILOG=y
811 select SERIAL_CORE_CONSOLE
813 If you would like to be able to use the z85c30 serial port
814 on your (Power)Mac as the console, you can do so by answering
818 tristate "CPM SCC/SMC serial port support"
819 depends on CPM2 || CPM1
822 This driver supports the SCC and SMC serial ports on Motorola
823 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
825 config SERIAL_CPM_CONSOLE
826 bool "Support for console on CPM SCC/SMC serial port"
827 depends on SERIAL_CPM=y
828 select SERIAL_CORE_CONSOLE
830 Say Y here if you wish to use a SCC or SMC CPM UART as the system
831 console (the system console is the device which receives all kernel
832 messages and warnings and which allows logins in single user mode).
834 Even if you say Y here, the currently visible framebuffer console
835 (/dev/tty0) will still be used as the system console by default, but
836 you can alter that using a kernel command line option such as
837 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
838 your boot loader (lilo or loadlin) about how to pass options to the
839 kernel at boot time.)
842 tristate "Microchip PIC32 serial support"
843 depends on MACH_PIC32
846 If you have a PIC32, this driver supports the serial ports.
848 Say Y or M to use PIC32 serial ports, otherwise say N. Note that
849 to use a serial port as a console, this must be included in kernel and
852 config SERIAL_PIC32_CONSOLE
853 bool "PIC32 serial console support"
854 depends on SERIAL_PIC32
855 select SERIAL_CORE_CONSOLE
857 If you have a PIC32, this driver supports the putting a console on one
860 Say Y to use the PIC32 console, otherwise say N.
862 config SERIAL_MPC52xx
863 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
864 depends on PPC_MPC52xx || PPC_MPC512x
867 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
868 like to use them, you must answer Y or M to this option. Note that
869 for use as console, it must be included in kernel and not as a
872 config SERIAL_MPC52xx_CONSOLE
873 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
874 depends on SERIAL_MPC52xx=y
875 select SERIAL_CORE_CONSOLE
877 Select this options if you'd like to use one of the PSC serial port
878 of the Freescale MPC52xx family as a console.
880 config SERIAL_MPC52xx_CONSOLE_BAUD
881 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
882 depends on SERIAL_MPC52xx_CONSOLE=y
885 Select the MPC52xx console baud rate.
886 This value is only used if the bootloader doesn't pass in the
890 tristate "IBM Multiport Serial Adapter"
891 depends on PCI && PPC_PSERIES
895 This driver is for a family of multiport serial adapters
896 including 2 port RVX, 2 port internal modem, 4 port internal
897 modem and a split 1 port RVX and 1 port internal modem.
899 This driver can also be built as a module. If so, the module
903 bool "TMPTX39XX/49XX SIO support"
904 depends on HAS_TXX9_SERIAL
908 config HAS_TXX9_SERIAL
911 config SERIAL_TXX9_NR_UARTS
912 int "Maximum number of TMPTX39XX/49XX SIO ports"
913 depends on SERIAL_TXX9
916 config SERIAL_TXX9_CONSOLE
917 bool "TMPTX39XX/49XX SIO Console support"
918 depends on SERIAL_TXX9=y
919 select SERIAL_CORE_CONSOLE
921 config SERIAL_TXX9_STDSERIAL
922 bool "TX39XX/49XX SIO act as standard serial"
923 depends on !SERIAL_8250 && SERIAL_TXX9
926 tristate "NEC VR4100 series Serial Interface Unit support"
927 depends on CPU_VR41XX
930 If you have a NEC VR4100 series processor and you want to use
931 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
932 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
934 config SERIAL_VR41XX_CONSOLE
935 bool "Enable NEC VR4100 series Serial Interface Unit console"
936 depends on SERIAL_VR41XX=y
937 select SERIAL_CORE_CONSOLE
939 If you have a NEC VR4100 series processor and you want to use
940 a console on a serial port, say Y. Otherwise, say N.
943 tristate "Digi International NEO and Classic PCI Support"
947 This is a driver for Digi International's Neo and Classic series
948 of cards which provide multiple serial ports. You would need
949 something like this to connect more than two modems to your Linux
950 box, for instance in order to become a dial-in server. This driver
951 supports PCI boards only.
953 If you have a card like this, say Y here, otherwise say N.
955 To compile this driver as a module, choose M here: the
956 module will be called jsm.
959 tristate "MSM on-chip serial port support"
963 config SERIAL_MSM_CONSOLE
964 bool "MSM serial console support"
965 depends on SERIAL_MSM=y
966 select SERIAL_CORE_CONSOLE
967 select SERIAL_EARLYCON
969 config SERIAL_QCOM_GENI
970 tristate "QCOM on-chip GENI based serial port support"
971 depends on ARCH_QCOM || COMPILE_TEST
972 depends on QCOM_GENI_SE
975 config SERIAL_QCOM_GENI_CONSOLE
976 bool "QCOM GENI Serial Console support"
977 depends on SERIAL_QCOM_GENI
978 select SERIAL_CORE_CONSOLE
979 select SERIAL_EARLYCON
981 Serial console driver for Qualcomm Technologies Inc's GENI based
985 bool "VIA VT8500 on-chip serial port support"
986 depends on ARCH_VT8500
989 config SERIAL_VT8500_CONSOLE
990 bool "VIA VT8500 serial console support"
991 depends on SERIAL_VT8500=y
992 select SERIAL_CORE_CONSOLE
995 tristate "OMAP serial port support"
996 depends on ARCH_OMAP2PLUS
999 If you have a machine based on an Texas Instruments OMAP CPU you
1000 can enable its onboard serial ports by enabling this option.
1002 By enabling this option you take advantage of dma feature available
1003 with the omap-serial driver. DMA support can be enabled from platform
1006 config SERIAL_OMAP_CONSOLE
1007 bool "Console on OMAP serial port"
1008 depends on SERIAL_OMAP=y
1009 select SERIAL_CORE_CONSOLE
1011 Select this option if you would like to use omap serial port as
1014 Even if you say Y here, the currently visible virtual console
1015 (/dev/tty0) will still be used as the system console by default, but
1016 you can alter that using a kernel command line option such as
1017 "console=ttyOx". (Try "man bootparam" or see the documentation of
1018 your boot loader about how to pass options to the kernel at
1021 config SERIAL_SIFIVE
1022 tristate "SiFive UART support"
1026 Select this option if you are building a kernel for a device that
1027 contains a SiFive UART IP block. This type of UART is present on
1028 SiFive FU540 SoCs, among others.
1030 config SERIAL_SIFIVE_CONSOLE
1031 bool "Console on SiFive UART"
1032 depends on SERIAL_SIFIVE=y
1033 select SERIAL_CORE_CONSOLE
1034 select SERIAL_EARLYCON
1036 Select this option if you would like to use a SiFive UART as the
1039 Even if you say Y here, the currently visible virtual console
1040 (/dev/tty0) will still be used as the system console by default, but
1041 you can alter that using a kernel command line option such as
1042 "console=ttySIFx". (Try "man bootparam" or see the documentation of
1043 your boot loader about how to pass options to the kernel at
1046 config SERIAL_LANTIQ
1047 tristate "Lantiq serial driver"
1048 depends on (LANTIQ || X86) || COMPILE_TEST
1051 Support for UART on Lantiq and Intel SoCs.
1052 To compile this driver as a module, select M here. The
1053 module will be called lantiq.
1055 config SERIAL_LANTIQ_CONSOLE
1056 bool "Console on Lantiq UART"
1057 depends on SERIAL_LANTIQ=y
1058 select SERIAL_CORE_CONSOLE
1059 select SERIAL_EARLYCON
1061 Select this option if you would like to use a Lantiq UART as the
1065 tristate "Freescale QUICC Engine serial port support"
1066 depends on QUICC_ENGINE
1070 This driver supports the QE serial ports on Freescale embedded
1071 PowerPC that contain a QUICC Engine.
1073 config SERIAL_SCCNXP
1074 tristate "SCCNXP serial port support"
1077 This selects support for an advanced UART from NXP (Philips).
1078 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1079 SC28L202, SCC68681 and SCC68692.
1081 config SERIAL_SCCNXP_CONSOLE
1082 bool "Console on SCCNXP serial port"
1083 depends on SERIAL_SCCNXP=y
1084 select SERIAL_CORE_CONSOLE
1086 Support for console on SCCNXP serial ports.
1088 config SERIAL_SC16IS7XX_CORE
1091 config SERIAL_SC16IS7XX
1092 tristate "SC16IS7xx serial support"
1094 depends on (SPI_MASTER && !I2C) || I2C
1096 This selects support for SC16IS7xx serial ports.
1097 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1098 SC16IS760 and SC16IS762. Select supported buses using options below.
1100 config SERIAL_SC16IS7XX_I2C
1101 bool "SC16IS7xx for I2C interface"
1102 depends on SERIAL_SC16IS7XX
1104 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1105 select REGMAP_I2C if I2C
1108 Enable SC16IS7xx driver on I2C bus,
1109 If required say y, and say n to i2c if not required,
1110 Enabled by default to support oldconfig.
1111 You must select at least one bus for the driver to be built.
1113 config SERIAL_SC16IS7XX_SPI
1114 bool "SC16IS7xx for spi interface"
1115 depends on SERIAL_SC16IS7XX
1116 depends on SPI_MASTER
1117 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1118 select REGMAP_SPI if SPI_MASTER
1120 Enable SC16IS7xx driver on SPI bus,
1121 If required say y, and say n to spi if not required,
1122 This is additional support to existing driver.
1123 You must select at least one bus for the driver to be built.
1125 config SERIAL_TIMBERDALE
1126 tristate "Support for timberdale UART"
1128 depends on X86_32 || COMPILE_TEST
1130 Add support for UART controller on timberdale.
1132 config SERIAL_BCM63XX
1133 tristate "Broadcom BCM63xx/BCM33xx UART support"
1135 depends on MIPS || ARM || COMPILE_TEST
1137 This enables the driver for the onchip UART core found on
1138 the following chipsets:
1140 BCM33xx (cable modem)
1141 BCM63xx/BCM63xxx (DSL)
1143 BCM7xxx (STB) - DOCSIS console
1145 config SERIAL_BCM63XX_CONSOLE
1146 bool "Console on BCM63xx serial port"
1147 depends on SERIAL_BCM63XX=y
1148 select SERIAL_CORE_CONSOLE
1149 select SERIAL_EARLYCON
1151 If you have enabled the serial port on the BCM63xx CPU
1152 you can make it the console by answering Y to this option.
1154 config SERIAL_GRLIB_GAISLER_APBUART
1155 tristate "GRLIB APBUART serial support"
1156 depends on OF && SPARC
1159 Add support for the GRLIB APBUART serial port.
1161 config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1162 bool "Console on GRLIB APBUART serial port"
1163 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1164 select SERIAL_CORE_CONSOLE
1166 Support for running a console on the GRLIB APBUART
1168 config SERIAL_ALTERA_JTAGUART
1169 tristate "Altera JTAG UART support"
1172 This driver supports the Altera JTAG UART port.
1174 config SERIAL_ALTERA_JTAGUART_CONSOLE
1175 bool "Altera JTAG UART console support"
1176 depends on SERIAL_ALTERA_JTAGUART=y
1177 select SERIAL_CORE_CONSOLE
1178 select SERIAL_EARLYCON
1180 Enable a Altera JTAG UART port to be the system console.
1182 config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1183 bool "Bypass output when no connection"
1184 depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1185 select SERIAL_CORE_CONSOLE
1187 Bypass console output and keep going even if there is no
1188 JTAG terminal connection with the host.
1190 config SERIAL_ALTERA_UART
1191 tristate "Altera UART support"
1194 This driver supports the Altera softcore UART port.
1196 config SERIAL_ALTERA_UART_MAXPORTS
1197 int "Maximum number of Altera UART ports"
1198 depends on SERIAL_ALTERA_UART
1201 This setting lets you define the maximum number of the Altera
1202 UART ports. The usual default varies from board to board, and
1203 this setting is a way of catering for that.
1205 config SERIAL_ALTERA_UART_BAUDRATE
1206 int "Default baudrate for Altera UART ports"
1207 depends on SERIAL_ALTERA_UART
1210 This setting lets you define what the default baudrate is for the
1211 Altera UART ports. The usual default varies from board to board,
1212 and this setting is a way of catering for that.
1214 config SERIAL_ALTERA_UART_CONSOLE
1215 bool "Altera UART console support"
1216 depends on SERIAL_ALTERA_UART=y
1217 select SERIAL_CORE_CONSOLE
1218 select SERIAL_EARLYCON
1220 Enable a Altera UART port to be the system console.
1222 config SERIAL_IFX6X60
1223 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1224 depends on GPIOLIB || COMPILE_TEST
1225 depends on SPI && HAS_DMA
1227 Support for the IFX6x60 modem devices on Intel MID platforms.
1229 config SERIAL_PCH_UART
1230 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1231 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
1234 This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1235 which is an IOH(Input/Output Hub) for x86 embedded processor.
1236 Enabling PCH_DMA, this PCH UART works as DMA mode.
1238 This driver also can be used for LAPIS Semiconductor IOH(Input/
1239 Output Hub), ML7213, ML7223 and ML7831.
1240 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1241 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1242 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1243 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1245 config SERIAL_PCH_UART_CONSOLE
1246 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1247 depends on SERIAL_PCH_UART=y
1248 select SERIAL_CORE_CONSOLE
1250 Say Y here if you wish to use the PCH UART as the system console
1251 (the system console is the device which receives all kernel messages and
1252 warnings and which allows logins in single user mode).
1254 config SERIAL_MXS_AUART
1255 tristate "MXS AUART support"
1256 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1258 select SERIAL_MCTRL_GPIO if GPIOLIB
1260 This driver supports the MXS and Alphascale ASM9260 Application
1263 config SERIAL_MXS_AUART_CONSOLE
1264 bool "MXS AUART console support"
1265 depends on SERIAL_MXS_AUART=y
1266 select SERIAL_CORE_CONSOLE
1268 Enable a MXS AUART port to be the system console.
1270 config SERIAL_XILINX_PS_UART
1271 tristate "Cadence (Xilinx Zynq) UART support"
1275 This driver supports the Cadence UART. It is found e.g. in Xilinx
1278 config SERIAL_XILINX_PS_UART_CONSOLE
1279 bool "Cadence UART console support"
1280 depends on SERIAL_XILINX_PS_UART=y
1281 select SERIAL_CORE_CONSOLE
1282 select SERIAL_EARLYCON
1284 Enable a Cadence UART port to be the system console.
1286 config SERIAL_AR933X
1287 tristate "AR933X serial port support"
1288 depends on HAVE_CLK && ATH79
1290 select SERIAL_MCTRL_GPIO if GPIOLIB
1292 If you have an Atheros AR933X SOC based board and want to use the
1293 built-in UART of the SoC, say Y to this option.
1295 To compile this driver as a module, choose M here: the
1296 module will be called ar933x_uart.
1298 config SERIAL_AR933X_CONSOLE
1299 bool "Console on AR933X serial port"
1300 depends on SERIAL_AR933X=y
1301 select SERIAL_CORE_CONSOLE
1303 Enable a built-in UART port of the AR933X to be the system console.
1305 config SERIAL_AR933X_NR_UARTS
1306 int "Maximum number of AR933X serial ports"
1307 depends on SERIAL_AR933X
1310 Set this to the number of serial ports you want the driver
1313 config SERIAL_EFM32_UART
1314 tristate "EFM32 UART/USART port"
1315 depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1318 This driver support the USART and UART ports on
1319 Energy Micro's efm32 SoCs.
1321 config SERIAL_MPS2_UART_CONSOLE
1322 bool "MPS2 UART console support"
1323 depends on SERIAL_MPS2_UART
1324 select SERIAL_CORE_CONSOLE
1325 select SERIAL_EARLYCON
1327 config SERIAL_MPS2_UART
1328 bool "MPS2 UART port"
1329 depends on ARCH_MPS2 || COMPILE_TEST
1332 This driver support the UART ports on ARM MPS2.
1334 config SERIAL_EFM32_UART_CONSOLE
1335 bool "EFM32 UART/USART console support"
1336 depends on SERIAL_EFM32_UART=y
1337 select SERIAL_CORE_CONSOLE
1340 tristate "ARC UART driver support"
1343 Driver for on-chip UART for ARC(Synopsys) for the legacy
1344 FPGA Boards (ML50x/ARCAngel4)
1346 config SERIAL_ARC_CONSOLE
1347 bool "Console on ARC UART"
1348 depends on SERIAL_ARC=y
1349 select SERIAL_CORE_CONSOLE
1350 select SERIAL_EARLYCON
1352 Enable system Console on ARC UART
1354 config SERIAL_ARC_NR_PORTS
1355 int "Number of ARC UART ports"
1356 depends on SERIAL_ARC
1360 Set this to the number of serial ports you want the driver
1364 tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1368 This driver supports the Comtrol RocketPort EXPRESS and
1369 RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1370 These adapters use a "RocketPort 2" ASIC that is not compatible
1371 with the original RocketPort driver (CONFIG_ROCKETPORT).
1373 To compile this driver as a module, choose M here: the
1374 module will be called rp2.
1376 If you want to compile this driver into the kernel, say Y here. If
1377 you don't have a suitable RocketPort card installed, say N.
1379 config SERIAL_RP2_NR_UARTS
1380 int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1381 depends on SERIAL_RP2
1384 If multiple cards are present, the default limit of 32 ports may
1385 need to be increased.
1387 config SERIAL_FSL_LPUART
1388 tristate "Freescale lpuart serial port support"
1392 Support for the on-chip lpuart on some Freescale SOCs.
1394 config SERIAL_FSL_LPUART_CONSOLE
1395 bool "Console on Freescale lpuart serial port"
1396 depends on SERIAL_FSL_LPUART=y
1397 select SERIAL_CORE_CONSOLE
1398 select SERIAL_EARLYCON
1400 If you have enabled the lpuart serial port on the Freescale SoCs,
1401 you can make it the console by answering Y to this option.
1403 config SERIAL_FSL_LINFLEXUART
1404 tristate "Freescale LINFlexD UART serial port support"
1408 Support for the on-chip LINFlexD UART on some Freescale SOCs.
1410 config SERIAL_FSL_LINFLEXUART_CONSOLE
1411 bool "Console on Freescale LINFlexD UART serial port"
1412 depends on SERIAL_FSL_LINFLEXUART=y
1413 select SERIAL_CORE_CONSOLE
1414 select SERIAL_EARLYCON
1416 If you have enabled the LINFlexD UART serial port on the Freescale
1417 SoCs, you can make it the console by answering Y to this option.
1419 config SERIAL_CONEXANT_DIGICOLOR
1420 tristate "Conexant Digicolor CX92xxx USART serial port support"
1424 Support for the on-chip USART on Conexant Digicolor SoCs.
1426 config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1427 bool "Console on Conexant Digicolor serial port"
1428 depends on SERIAL_CONEXANT_DIGICOLOR=y
1429 select SERIAL_CORE_CONSOLE
1431 If you have enabled the USART serial port on Conexant Digicolor
1432 SoCs, you can make it the console by answering Y to this option.
1434 config SERIAL_ST_ASC
1435 tristate "ST ASC serial port support"
1437 depends on ARM || COMPILE_TEST
1439 This driver is for the on-chip Asychronous Serial Controller on
1440 STMicroelectronics STi SoCs.
1441 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1442 It support all industry standard baud rates.
1446 config SERIAL_ST_ASC_CONSOLE
1447 bool "Support for console on ST ASC"
1448 depends on SERIAL_ST_ASC=y
1449 select SERIAL_CORE_CONSOLE
1451 config SERIAL_MEN_Z135
1452 tristate "MEN 16z135 Support"
1456 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1459 This driver can also be build as a module. If so, the module will be called
1463 tristate "Support for Spreadtrum serial"
1465 depends on COMMON_CLK
1467 This enables the driver for the Spreadtrum's serial.
1469 config SERIAL_SPRD_CONSOLE
1470 bool "Spreadtrum UART console support"
1471 depends on SERIAL_SPRD=y
1472 select SERIAL_CORE_CONSOLE
1473 select SERIAL_EARLYCON
1475 Support for early debug console using Spreadtrum's serial. This enables
1476 the console before standard serial driver is probed. This is enabled
1477 with "earlycon" on the kernel command line. The console is
1478 enabled when early_param is processed.
1481 tristate "STMicroelectronics STM32 serial port support"
1483 depends on ARCH_STM32 || COMPILE_TEST
1484 select SERIAL_MCTRL_GPIO if GPIOLIB
1486 This driver is for the on-chip Serial Controller on
1487 STMicroelectronics STM32 MCUs.
1488 USART supports Rx & Tx functionality.
1489 It support all industry standard baud rates.
1493 config SERIAL_STM32_CONSOLE
1494 bool "Support for console on STM32"
1495 depends on SERIAL_STM32=y
1496 select SERIAL_CORE_CONSOLE
1498 config SERIAL_MVEBU_UART
1499 bool "Marvell EBU serial port support"
1500 depends on ARCH_MVEBU || COMPILE_TEST
1503 This driver is for Marvell EBU SoC's UART. If you have a machine
1504 based on the Armada-3700 SoC and wish to use the on-board serial
1509 config SERIAL_MVEBU_CONSOLE
1510 bool "Console on Marvell EBU serial port"
1511 depends on SERIAL_MVEBU_UART
1512 select SERIAL_CORE_CONSOLE
1513 select SERIAL_EARLYCON
1516 Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1517 (the system console is the device which receives all kernel messages
1518 and warnings and which allows logins in single user mode)
1522 tristate "Actions Semi Owl serial port support"
1523 depends on ARCH_ACTIONS || COMPILE_TEST
1526 This driver is for Actions Semiconductor S500/S900 SoC's UART.
1527 Say 'Y' here if you wish to use the on-board serial port.
1530 config SERIAL_OWL_CONSOLE
1531 bool "Console on Actions Semi Owl serial port"
1532 depends on SERIAL_OWL=y
1533 select SERIAL_CORE_CONSOLE
1534 select SERIAL_EARLYCON
1537 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART
1538 as the system console.
1541 bool "RDA Micro serial port support"
1542 depends on ARCH_RDA || COMPILE_TEST
1545 This driver is for RDA8810PL SoC's UART.
1546 Say 'Y' here if you wish to use the on-board serial port.
1549 config SERIAL_RDA_CONSOLE
1550 bool "Console on RDA Micro serial port"
1551 depends on SERIAL_RDA=y
1552 select SERIAL_CORE_CONSOLE
1553 select SERIAL_EARLYCON
1556 Say 'Y' here if you wish to use the RDA8810PL UART as the system
1557 console. Only earlycon is implemented currently.
1559 config SERIAL_MILBEAUT_USIO
1560 tristate "Milbeaut USIO/UART serial port support"
1561 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF)
1562 default ARCH_MILBEAUT
1565 This selects the USIO/UART IP found in Socionext Milbeaut SoCs.
1567 config SERIAL_MILBEAUT_USIO_PORTS
1568 int "Maximum number of CSIO/UART ports (1-8)"
1570 depends on SERIAL_MILBEAUT_USIO
1573 config SERIAL_MILBEAUT_USIO_CONSOLE
1574 bool "Support for console on MILBEAUT USIO/UART serial port"
1575 depends on SERIAL_MILBEAUT_USIO=y
1577 select SERIAL_CORE_CONSOLE
1578 select SERIAL_EARLYCON
1580 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut
1581 SoCs as the system console (the system console is the device which
1582 receives all kernel messages and warnings and which allows logins in
1587 config SERIAL_MCTRL_GPIO