1 # SPDX-License-Identifier: GPL-2.0
3 # Serial device configuration
12 Support for early consoles with the earlycon parameter. This enables
13 the console before standard serial driver is probed. The console is
14 enabled when early_param is processed.
16 source "drivers/tty/serial/8250/Kconfig"
18 comment "Non-8250 serial port support"
20 config SERIAL_AMBA_PL010
21 tristate "ARM AMBA PL010 serial port support"
25 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have
26 an Integrator/AP or Integrator/PP2 platform, or if you have a
27 Cirrus Logic EP93xx CPU, say Y or M here.
31 config SERIAL_AMBA_PL010_CONSOLE
32 bool "Support for console on AMBA serial port"
33 depends on SERIAL_AMBA_PL010=y
34 select SERIAL_CORE_CONSOLE
36 Say Y here if you wish to use an AMBA PrimeCell UART as the system
37 console (the system console is the device which receives all kernel
38 messages and warnings and which allows logins in single user mode).
40 Even if you say Y here, the currently visible framebuffer console
41 (/dev/tty0) will still be used as the system console by default, but
42 you can alter that using a kernel command line option such as
43 "console=ttyAM0". (Try "man bootparam" or see the documentation of
44 your boot loader (lilo or loadlin) about how to pass options to the
47 config SERIAL_AMBA_PL011
48 tristate "ARM AMBA PL011 serial port support"
52 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have
53 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
58 config SERIAL_AMBA_PL011_CONSOLE
59 bool "Support for console on AMBA serial port"
60 depends on SERIAL_AMBA_PL011=y
61 select SERIAL_CORE_CONSOLE
62 select SERIAL_EARLYCON
64 Say Y here if you wish to use an AMBA PrimeCell UART as the system
65 console (the system console is the device which receives all kernel
66 messages and warnings and which allows logins in single user mode).
68 Even if you say Y here, the currently visible framebuffer console
69 (/dev/tty0) will still be used as the system console by default, but
70 you can alter that using a kernel command line option such as
71 "console=ttyAMA0". (Try "man bootparam" or see the documentation of
72 your boot loader (lilo or loadlin) about how to pass options to the
75 config SERIAL_EARLYCON_ARM_SEMIHOST
76 bool "Early console using ARM semihosting"
77 depends on ARM64 || ARM
79 select SERIAL_CORE_CONSOLE
80 select SERIAL_EARLYCON
82 Support for early debug console using ARM semihosting. This enables
83 the console before standard serial driver is probed. This is enabled
84 with "earlycon=smh" on the kernel command line. The console is
85 enabled when early_param is processed.
87 config SERIAL_EARLYCON_RISCV_SBI
88 bool "Early console using RISC-V SBI"
91 select SERIAL_CORE_CONSOLE
92 select SERIAL_EARLYCON
94 Support for early debug console using RISC-V SBI. This enables
95 the console before standard serial driver is probed. This is enabled
96 with "earlycon=sbi" on the kernel command line. The console is
97 enabled when early_param is processed.
99 config SERIAL_SB1250_DUART
100 tristate "BCM1xxx on-chip DUART serial support"
101 depends on SIBYTE_SB1xxx_SOC=y
105 Support for the asynchronous serial interface (DUART) included in
106 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
107 the letter D in DUART stands for "dual", which is how the device
108 is implemented. Depending on the SOC configuration there may be
109 one or more DUARTs available of which all are handled.
111 If unsure, say Y. To compile this driver as a module, choose M here:
112 the module will be called sb1250-duart.
114 config SERIAL_SB1250_DUART_CONSOLE
115 bool "Support for console on a BCM1xxx DUART serial port"
116 depends on SERIAL_SB1250_DUART=y
117 select SERIAL_CORE_CONSOLE
120 If you say Y here, it will be possible to use a serial port as the
121 system console (the system console is the device which receives all
122 kernel messages and warnings and which allows logins in single user
128 bool "AT91 on-chip serial port support"
129 depends on ARCH_AT91 || COMPILE_TEST
131 select SERIAL_MCTRL_GPIO if GPIOLIB
132 select MFD_AT91_USART
134 This enables the driver for the on-chip UARTs of the Atmel
137 config SERIAL_ATMEL_CONSOLE
138 bool "Support for console on AT91 serial port"
139 depends on SERIAL_ATMEL=y
140 select SERIAL_CORE_CONSOLE
142 Say Y here if you wish to use an on-chip UART on a Atmel
143 AT91 processor as the system console (the system
144 console is the device which receives all kernel messages and
145 warnings and which allows logins in single user mode).
147 config SERIAL_ATMEL_PDC
148 bool "Support DMA transfers on AT91 serial port"
149 depends on SERIAL_ATMEL
152 Say Y here if you wish to use the PDC to do DMA transfers to
153 and from the Atmel AT91 serial port. In order to
154 actually use DMA transfers, make sure that the use_dma_tx
155 and use_dma_rx members in the atmel_uart_data struct is set
156 appropriately for each port.
158 Note that break and error handling currently doesn't work
159 properly when DMA is enabled. Make sure that ports where
160 this matters don't use DMA.
162 config SERIAL_ATMEL_TTYAT
163 bool "Install as device ttyATn instead of ttySn"
164 depends on SERIAL_ATMEL=y
166 Say Y here if you wish to have the internal AT91 UARTs
167 appear as /dev/ttyATn (major 204, minor starting at 154)
168 instead of the normal /dev/ttySn (major 4, minor starting at
169 64). This is necessary if you also want other UARTs, such as
170 external 8250/16C550 compatible UARTs.
171 The ttySn nodes are legally reserved for the 8250 serial driver
172 but are often misused by other serial drivers.
174 To use this, you should create suitable ttyATn device nodes in
175 /dev/, and pass "console=ttyATn" to the kernel.
177 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
179 config SERIAL_KGDB_NMI
180 bool "Serial console over KGDB NMI debugger port"
181 depends on KGDB_SERIAL_CONSOLE
183 This special driver allows you to temporary use NMI debugger port
184 as a normal console (assuming that the port is attached to KGDB).
186 Unlike KDB's disable_nmi command, with this driver you are always
187 able to go back to the debugger using KGDB escape sequence ($3#33).
188 This is because this console driver processes the input in NMI
189 context, and thus is able to intercept the magic sequence.
191 Note that since the console interprets input and uses polling
192 communication methods, for things like PPP you still must fully
193 detach debugger port from the KGDB NMI (i.e. disable_nmi), and
199 tristate "Meson serial port support"
200 depends on ARCH_MESON
203 This enables the driver for the on-chip UARTs of the Amlogic
206 config SERIAL_MESON_CONSOLE
207 bool "Support for console on meson"
208 depends on SERIAL_MESON=y
209 select SERIAL_CORE_CONSOLE
210 select SERIAL_EARLYCON
212 Say Y here if you wish to use a Amlogic MesonX 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) as /dev/ttyAMLx.
217 config SERIAL_CLPS711X
218 tristate "CLPS711X serial port support"
219 depends on ARCH_CLPS711X || COMPILE_TEST
221 select SERIAL_MCTRL_GPIO if GPIOLIB
223 This enables the driver for the on-chip UARTs of the Cirrus
224 Logic EP711x/EP721x/EP731x processors.
226 config SERIAL_CLPS711X_CONSOLE
227 bool "Support for console on CLPS711X serial port"
228 depends on SERIAL_CLPS711X=y
229 select SERIAL_CORE_CONSOLE
231 Even if you say Y here, the currently visible virtual console
232 (/dev/tty0) will still be used as the system console by default, but
233 you can alter that using a kernel command line option such as
236 config SERIAL_SAMSUNG
237 tristate "Samsung SoC serial support"
238 depends on PLAT_SAMSUNG || ARCH_EXYNOS || COMPILE_TEST
241 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
242 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
243 provide all of these ports, depending on how the serial port
246 config SERIAL_SAMSUNG_UARTS_4
248 depends on SERIAL_SAMSUNG
249 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
251 Internal node for the common case of 4 Samsung compatible UARTs
253 config SERIAL_SAMSUNG_UARTS
255 depends on SERIAL_SAMSUNG
256 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
259 Select the number of available UART ports for the Samsung S3C
262 config SERIAL_SAMSUNG_DEBUG
263 bool "Samsung SoC serial debug"
264 depends on SERIAL_SAMSUNG && DEBUG_LL
266 Add support for debugging the serial driver. Since this is
267 generally being used as a console, we use our own output
268 routines that go via the low-level debug printascii()
271 config SERIAL_SAMSUNG_CONSOLE
272 bool "Support for console on Samsung SoC serial port"
273 depends on SERIAL_SAMSUNG=y
274 select SERIAL_CORE_CONSOLE
275 select SERIAL_EARLYCON
277 Allow selection of the S3C24XX on-board serial ports for use as
280 Even if you say Y here, the currently visible virtual console
281 (/dev/tty0) will still be used as the system console by default, but
282 you can alter that using a kernel command line option such as
283 "console=ttySACx". (Try "man bootparam" or see the documentation of
284 your boot loader about how to pass options to the kernel at
287 config SERIAL_SIRFSOC
288 tristate "SiRF SoC Platform Serial port support"
292 Support for the on-chip UART on the CSR SiRFprimaII series,
293 providing /dev/ttySiRF0, 1 and 2 (note, some machines may not
294 provide all of these ports, depending on how the serial port
295 pins are configured).
297 config SERIAL_SIRFSOC_CONSOLE
298 bool "Support for console on SiRF SoC serial port"
299 depends on SERIAL_SIRFSOC=y
300 select SERIAL_CORE_CONSOLE
302 Even if you say Y here, the currently visible virtual console
303 (/dev/tty0) will still be used as the system console by default, but
304 you can alter that using a kernel command line option such as
305 "console=ttySiRFx". (Try "man bootparam" or see the documentation of
306 your boot loader about how to pass options to the kernel at
310 tristate "NVIDIA Tegra20/30 SoC serial controller"
311 depends on ARCH_TEGRA && TEGRA20_APB_DMA
314 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
315 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not
316 provide all of these ports, depending on how the serial port
317 are enabled). This driver uses the APB DMA to achieve higher baudrate
318 and better performance.
320 config SERIAL_TEGRA_TCU
321 tristate "NVIDIA Tegra Combined UART"
322 depends on ARCH_TEGRA && TEGRA_HSP_MBOX
325 Support for the mailbox-based TCU (Tegra Combined UART) serial port.
326 TCU is a virtual serial port that allows multiplexing multiple data
327 streams into a single hardware serial port.
329 config SERIAL_TEGRA_TCU_CONSOLE
330 bool "Support for console on a Tegra TCU serial port"
331 depends on SERIAL_TEGRA_TCU=y
332 select SERIAL_CORE_CONSOLE
335 If you say Y here, it will be possible to use a the Tegra TCU as the
336 system console (the system console is the device which receives all
337 kernel messages and warnings and which allows logins in single user
342 config SERIAL_MAX3100
343 tristate "MAX3100 support"
349 config SERIAL_MAX310X
350 tristate "MAX310X support"
351 depends on SPI_MASTER
353 select REGMAP_SPI if SPI_MASTER
355 This selects support for an advanced UART from Maxim (Dallas).
356 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830.
357 Each IC contains 128 words each of receive and transmit FIFO
358 that can be controlled through I2C or high-speed SPI.
360 Say Y here if you want to support this ICs.
363 bool "DECstation DZ serial driver"
364 depends on MACH_DECSTATION && 32BIT
368 DZ11-family serial controllers for DECstations and VAXstations,
369 including the DC7085, M7814, and M7819.
371 config SERIAL_DZ_CONSOLE
372 bool "Support console on DECstation DZ serial driver"
373 depends on SERIAL_DZ=y
374 select SERIAL_CORE_CONSOLE
377 If you say Y here, it will be possible to use a serial port as the
378 system console (the system console is the device which receives all
379 kernel messages and warnings and which allows logins in single user
382 Note that the firmware uses ttyS3 as the serial console on
383 DECstations that use this driver.
388 tristate "DECstation Z85C30 serial support"
389 depends on MACH_DECSTATION
393 Support for the Zilog 85C350 serial communications controller used
394 for serial ports in newer DECstation systems. These include the
395 DECsystem 5900 and all models of the DECstation and DECsystem 5000
396 systems except from model 200.
398 If unsure, say Y. To compile this driver as a module, choose M here:
399 the module will be called zs.
401 config SERIAL_ZS_CONSOLE
402 bool "Support for console on a DECstation Z85C30 serial port"
403 depends on SERIAL_ZS=y
404 select SERIAL_CORE_CONSOLE
407 If you say Y here, it will be possible to use a serial port as the
408 system console (the system console is the device which receives all
409 kernel messages and warnings and which allows logins in single user
412 Note that the firmware uses ttyS1 as the serial console on the
413 Maxine and ttyS3 on the others using this driver.
418 tristate "DC21285 serial port support"
419 depends on FOOTBRIDGE
422 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
423 PCI bridge you can enable its onboard serial port by enabling this
426 config SERIAL_21285_CONSOLE
427 bool "Console on DC21285 serial port"
428 depends on SERIAL_21285=y
429 select SERIAL_CORE_CONSOLE
431 If you have enabled the serial port on the 21285 footbridge you can
432 make it the console by answering Y to this option.
434 Even if you say Y here, the currently visible virtual console
435 (/dev/tty0) will still be used as the system console by default, but
436 you can alter that using a kernel command line option such as
437 "console=ttyFB". (Try "man bootparam" or see the documentation of
438 your boot loader (lilo or loadlin) about how to pass options to the
439 kernel at boot time.)
442 bool "PXA serial port support (DEPRECATED)"
443 depends on ARCH_PXA || ARCH_MMP
445 select SERIAL_8250_PXA if SERIAL_8250=y
446 select SERIAL_PXA_NON8250 if !SERIAL_8250=y
448 If you have a machine based on an Intel XScale PXA2xx CPU you
449 can enable its onboard serial ports by enabling this option.
451 Unless you have a specific need, you should use SERIAL_8250_PXA
454 config SERIAL_PXA_NON8250
456 depends on !SERIAL_8250
458 config SERIAL_PXA_CONSOLE
459 bool "Console on PXA serial port (DEPRECATED)"
460 depends on SERIAL_PXA
461 select SERIAL_CORE_CONSOLE
462 select SERIAL_8250_CONSOLE if SERIAL_8250=y
464 If you have enabled the serial port on the Intel XScale PXA
465 CPU you can make it the console by answering Y to this option.
467 Even if you say Y here, the currently visible virtual console
468 (/dev/tty0) will still be used as the system console by default, but
469 you can alter that using a kernel command line option such as
470 "console=ttySA0". (Try "man bootparam" or see the documentation of
471 your boot loader (lilo or loadlin) about how to pass options to the
472 kernel at boot time.)
474 Unless you have a specific need, you should use SERIAL_8250_PXA
475 and SERIAL_8250_CONSOLE instead of this.
478 bool "SA1100 serial port support"
479 depends on ARCH_SA1100
481 select SERIAL_MCTRL_GPIO if GPIOLIB
483 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
484 can enable its onboard serial port by enabling this option.
485 Please read <file:Documentation/arm/sa1100/serial_uart.rst> for further
488 config SERIAL_SA1100_CONSOLE
489 bool "Console on SA1100 serial port"
490 depends on SERIAL_SA1100
491 select SERIAL_CORE_CONSOLE
493 If you have enabled the serial port on the SA1100/SA1110 StrongARM
494 CPU you can make it the console by answering Y to this option.
496 Even if you say Y here, the currently visible virtual console
497 (/dev/tty0) will still be used as the system console by default, but
498 you can alter that using a kernel command line option such as
499 "console=ttySA0". (Try "man bootparam" or see the documentation of
500 your boot loader (lilo or loadlin) about how to pass options to the
501 kernel at boot time.)
504 tristate "IMX serial port support"
505 depends on ARCH_MXC || COMPILE_TEST
508 select SERIAL_MCTRL_GPIO if GPIOLIB
510 If you have a machine based on a Motorola IMX CPU you
511 can enable its onboard serial port by enabling this option.
513 config SERIAL_IMX_CONSOLE
514 bool "Console on IMX serial port"
515 depends on SERIAL_IMX=y
516 select SERIAL_CORE_CONSOLE
517 select SERIAL_EARLYCON if OF
519 If you have enabled the serial port on the Freescale IMX
520 CPU you can make it the console by answering Y to this option.
522 Even if you say Y here, the currently visible virtual console
523 (/dev/tty0) will still be used as the system console by default, but
524 you can alter that using a kernel command line option such as
525 "console=ttymxc0". (Try "man bootparam" or see the documentation of
526 your bootloader about how to pass options to the kernel at boot time.)
528 config SERIAL_UARTLITE
529 tristate "Xilinx uartlite serial port support"
533 Say Y here if you want to use the Xilinx uartlite serial controller.
535 To compile this driver as a module, choose M here: the
536 module will be called uartlite.
538 config SERIAL_UARTLITE_CONSOLE
539 bool "Support for console on Xilinx uartlite serial port"
540 depends on SERIAL_UARTLITE=y
541 select SERIAL_CORE_CONSOLE
542 select SERIAL_EARLYCON
544 Say Y here if you wish to use a Xilinx uartlite as the system
545 console (the system console is the device which receives all kernel
546 messages and warnings and which allows logins in single user mode).
548 config SERIAL_UARTLITE_NR_UARTS
549 int "Maximum number of uartlite serial ports"
550 depends on SERIAL_UARTLITE
554 Set this to the number of uartlites in your system, or the number
555 you think you might implement.
557 config SERIAL_SUNCORE
561 select SERIAL_CORE_CONSOLE
564 config SERIAL_SUNZILOG
565 tristate "Sun Zilog8530 serial support"
568 This driver supports the Zilog8530 serial ports found on many Sparc
569 systems. Say Y or M if you want to be able to these serial ports.
571 config SERIAL_SUNZILOG_CONSOLE
572 bool "Console on Sun Zilog8530 serial port"
573 depends on SERIAL_SUNZILOG=y
575 If you would like to be able to use the Zilog8530 serial port
576 on your Sparc system as the console, you can do so by answering
580 tristate "Sun SU serial support"
581 depends on SPARC && PCI
583 This driver supports the 8250 serial ports that run the keyboard and
584 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
585 to these serial ports.
587 config SERIAL_SUNSU_CONSOLE
588 bool "Console on Sun SU serial port"
589 depends on SERIAL_SUNSU=y
591 If you would like to be able to use the SU serial port
592 on your Sparc system as the console, you can do so by answering
596 tristate "Serial MUX support"
601 Saying Y here will enable the hardware MUX serial driver for
602 the Nova, K class systems and D class with a 'remote control card'.
603 The hardware MUX is not 8250/16550 compatible therefore the
604 /dev/ttyB0 device is shared between the Serial MUX and the PDC
605 software console. The following steps need to be completed to use
608 1. create the device entry (mknod /dev/ttyB0 c 11 0)
609 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
610 3. Add device ttyB0 to /etc/securetty (if you want to log on as
611 root on this console.)
612 4. Change the kernel command console parameter to: console=ttyB0
614 config SERIAL_MUX_CONSOLE
615 bool "Support for console on serial MUX"
616 depends on SERIAL_MUX=y
617 select SERIAL_CORE_CONSOLE
621 bool "PDC software console support"
622 depends on PARISC && !SERIAL_MUX && VT
624 Saying Y here will enable the software based PDC console to be
625 used as the system console. This is useful for machines in
626 which the hardware based console has not been written yet. The
627 following steps must be completed to use the PDC console:
629 1. create the device entry (mknod /dev/ttyB0 c 11 0)
630 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
631 3. Add device ttyB0 to /etc/securetty (if you want to log on as
632 root on this console.)
633 4. Change the kernel command console parameter to: console=ttyB0
636 tristate "Sun Siemens SAB82532 serial support"
637 depends on SPARC && PCI
639 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
640 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
643 config SERIAL_SUNSAB_CONSOLE
644 bool "Console on Sun Siemens SAB82532 serial port"
645 depends on SERIAL_SUNSAB=y
647 If you would like to be able to use the SAB82532 serial port
648 on your Sparc system as the console, you can do so by answering
652 bool "Sun4v Hypervisor Console support"
655 This driver supports the console device found on SUN4V Sparc
656 systems. Say Y if you want to be able to use this device.
658 config SERIAL_IP22_ZILOG
659 tristate "SGI Zilog8530 serial support"
660 depends on SGI_HAS_ZILOG
663 This driver supports the Zilog8530 serial ports found on SGI
664 systems. Say Y or M if you want to be able to these serial ports.
666 config SERIAL_IP22_ZILOG_CONSOLE
667 bool "Console on SGI Zilog8530 serial port"
668 depends on SERIAL_IP22_ZILOG=y
669 select SERIAL_CORE_CONSOLE
672 tristate "SuperH SCI(F) serial port support"
673 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
675 select SERIAL_MCTRL_GPIO if GPIOLIB
677 config SERIAL_SH_SCI_NR_UARTS
678 int "Maximum number of SCI(F) serial ports" if EXPERT
681 depends on SERIAL_SH_SCI
683 default "10" if SUPERH
684 default "18" if ARCH_RENESAS
687 config SERIAL_SH_SCI_CONSOLE
688 bool "Support for console on SuperH SCI(F)" if EXPERT
689 depends on SERIAL_SH_SCI=y
690 select SERIAL_CORE_CONSOLE
693 config SERIAL_SH_SCI_EARLYCON
694 bool "Support for early console on SuperH SCI(F)" if EXPERT
695 depends on SERIAL_SH_SCI=y
696 select SERIAL_CORE_CONSOLE
697 select SERIAL_EARLYCON
698 default ARCH_RENESAS || H8300
700 config SERIAL_SH_SCI_DMA
701 bool "DMA support" if EXPERT
702 depends on SERIAL_SH_SCI && DMA_ENGINE
705 config SERIAL_PNX8XXX
706 bool "Enable PNX8XXX SoCs' UART Support"
707 depends on SOC_PNX833X
710 If you have a MIPS-based Philips SoC such as PNX8330 and you want
711 to use serial ports, say Y. Otherwise, say N.
713 config SERIAL_PNX8XXX_CONSOLE
714 bool "Enable PNX8XX0 serial console"
715 depends on SERIAL_PNX8XXX
716 select SERIAL_CORE_CONSOLE
718 If you have a MIPS-based Philips SoC such as PNX8330 and you want
719 to use serial console, say Y. Otherwise, say N.
721 config SERIAL_HS_LPC32XX
722 tristate "LPC32XX high speed serial port support"
723 depends on ARCH_LPC32XX || COMPILE_TEST
727 Support for the LPC32XX high speed serial ports (up to 900kbps).
728 Those are UARTs completely different from the Standard UARTs on the
730 Choose M or Y here to build this driver.
732 config SERIAL_HS_LPC32XX_CONSOLE
733 bool "Enable LPC32XX high speed UART serial console"
734 depends on SERIAL_HS_LPC32XX=y
735 select SERIAL_CORE_CONSOLE
737 If you would like to be able to use one of the high speed serial
738 ports on the LPC32XX as the console, you can do so by answering
744 config SERIAL_CORE_CONSOLE
751 bool "Coldfire serial support"
755 This serial driver supports the Freescale Coldfire serial ports.
757 config SERIAL_MCF_BAUDRATE
758 int "Default baudrate for Coldfire serial ports"
759 depends on SERIAL_MCF
762 This setting lets you define what the default baudrate is for the
763 ColdFire serial ports. The usual default varies from board to board,
764 and this setting is a way of catering for that.
766 config SERIAL_MCF_CONSOLE
767 bool "Coldfire serial console support"
768 depends on SERIAL_MCF
769 select SERIAL_CORE_CONSOLE
771 Enable a ColdFire internal serial port to be the system console.
773 config SERIAL_PMACZILOG
774 tristate "Mac or PowerMac z85c30 ESCC support"
775 depends on (M68K && MAC) || PPC_PMAC
778 This driver supports the Zilog z85C30 serial ports found on
780 Say Y or M if you want to be able to these serial ports.
782 config SERIAL_PMACZILOG_TTYS
783 bool "Use ttySn device nodes for Zilog z85c30"
784 depends on SERIAL_PMACZILOG
786 The pmac_zilog driver for the z85C30 chip on many powermacs
787 historically used the device numbers for /dev/ttySn. The
788 8250 serial port driver also uses these numbers, which means
789 the two drivers being unable to coexist; you could not use
790 both z85C30 and 8250 type ports at the same time.
792 If this option is not selected, the pmac_zilog driver will
793 use the device numbers allocated for /dev/ttyPZn. This allows
794 the pmac_zilog and 8250 drivers to co-exist, but may cause
795 existing userspace setups to break. Programs that need to
796 access the built-in serial ports on powermacs will need to
797 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
799 If you enable this option, any z85c30 ports in the system will
800 be registered as ttyS0 onwards as in the past, and you will be
801 unable to use the 8250 module for PCMCIA or other 16C550-style
804 Say N unless you need the z85c30 ports on your (Power)Mac
805 to appear as /dev/ttySn.
807 config SERIAL_PMACZILOG_CONSOLE
808 bool "Console on Mac or PowerMac z85c30 serial port"
809 depends on SERIAL_PMACZILOG=y
810 select SERIAL_CORE_CONSOLE
812 If you would like to be able to use the z85c30 serial port
813 on your (Power)Mac as the console, you can do so by answering
817 tristate "CPM SCC/SMC serial port support"
818 depends on CPM2 || CPM1
821 This driver supports the SCC and SMC serial ports on Motorola
822 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
824 config SERIAL_CPM_CONSOLE
825 bool "Support for console on CPM SCC/SMC serial port"
826 depends on SERIAL_CPM=y
827 select SERIAL_CORE_CONSOLE
829 Say Y here if you wish to use a SCC or SMC CPM UART as the system
830 console (the system console is the device which receives all kernel
831 messages and warnings and which allows logins in single user mode).
833 Even if you say Y here, the currently visible framebuffer console
834 (/dev/tty0) will still be used as the system console by default, but
835 you can alter that using a kernel command line option such as
836 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
837 your boot loader (lilo or loadlin) about how to pass options to the
838 kernel at boot time.)
841 tristate "Microchip PIC32 serial support"
842 depends on MACH_PIC32
845 If you have a PIC32, this driver supports the serial ports.
847 Say Y or M to use PIC32 serial ports, otherwise say N. Note that
848 to use a serial port as a console, this must be included in kernel and
851 config SERIAL_PIC32_CONSOLE
852 bool "PIC32 serial console support"
853 depends on SERIAL_PIC32
854 select SERIAL_CORE_CONSOLE
856 If you have a PIC32, this driver supports the putting a console on one
859 Say Y to use the PIC32 console, otherwise say N.
861 config SERIAL_MPC52xx
862 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
863 depends on PPC_MPC52xx || PPC_MPC512x
866 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
867 like to use them, you must answer Y or M to this option. Note that
868 for use as console, it must be included in kernel and not as a
871 config SERIAL_MPC52xx_CONSOLE
872 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
873 depends on SERIAL_MPC52xx=y
874 select SERIAL_CORE_CONSOLE
876 Select this options if you'd like to use one of the PSC serial port
877 of the Freescale MPC52xx family as a console.
879 config SERIAL_MPC52xx_CONSOLE_BAUD
880 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
881 depends on SERIAL_MPC52xx_CONSOLE=y
884 Select the MPC52xx console baud rate.
885 This value is only used if the bootloader doesn't pass in the
889 tristate "IBM Multiport Serial Adapter"
890 depends on PCI && PPC_PSERIES
894 This driver is for a family of multiport serial adapters
895 including 2 port RVX, 2 port internal modem, 4 port internal
896 modem and a split 1 port RVX and 1 port internal modem.
898 This driver can also be built as a module. If so, the module
902 bool "TMPTX39XX/49XX SIO support"
903 depends on HAS_TXX9_SERIAL
907 config HAS_TXX9_SERIAL
910 config SERIAL_TXX9_NR_UARTS
911 int "Maximum number of TMPTX39XX/49XX SIO ports"
912 depends on SERIAL_TXX9
915 config SERIAL_TXX9_CONSOLE
916 bool "TMPTX39XX/49XX SIO Console support"
917 depends on SERIAL_TXX9=y
918 select SERIAL_CORE_CONSOLE
920 config SERIAL_TXX9_STDSERIAL
921 bool "TX39XX/49XX SIO act as standard serial"
922 depends on !SERIAL_8250 && SERIAL_TXX9
925 tristate "NEC VR4100 series Serial Interface Unit support"
926 depends on CPU_VR41XX
929 If you have a NEC VR4100 series processor and you want to use
930 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
931 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
933 config SERIAL_VR41XX_CONSOLE
934 bool "Enable NEC VR4100 series Serial Interface Unit console"
935 depends on SERIAL_VR41XX=y
936 select SERIAL_CORE_CONSOLE
938 If you have a NEC VR4100 series processor and you want to use
939 a console on a serial port, say Y. Otherwise, say N.
942 tristate "Digi International NEO and Classic PCI Support"
946 This is a driver for Digi International's Neo and Classic series
947 of cards which provide multiple serial ports. You would need
948 something like this to connect more than two modems to your Linux
949 box, for instance in order to become a dial-in server. This driver
950 supports PCI boards only.
952 If you have a card like this, say Y here, otherwise say N.
954 To compile this driver as a module, choose M here: the
955 module will be called jsm.
958 tristate "MSM on-chip serial port support"
962 config SERIAL_MSM_CONSOLE
963 bool "MSM serial console support"
964 depends on SERIAL_MSM=y
965 select SERIAL_CORE_CONSOLE
966 select SERIAL_EARLYCON
968 config SERIAL_QCOM_GENI
969 tristate "QCOM on-chip GENI based serial port support"
970 depends on ARCH_QCOM || COMPILE_TEST
971 depends on QCOM_GENI_SE
974 config SERIAL_QCOM_GENI_CONSOLE
975 bool "QCOM GENI Serial Console support"
976 depends on SERIAL_QCOM_GENI
977 select SERIAL_CORE_CONSOLE
978 select SERIAL_EARLYCON
980 Serial console driver for Qualcomm Technologies Inc's GENI based
984 bool "VIA VT8500 on-chip serial port support"
985 depends on ARCH_VT8500
988 config SERIAL_VT8500_CONSOLE
989 bool "VIA VT8500 serial console support"
990 depends on SERIAL_VT8500=y
991 select SERIAL_CORE_CONSOLE
994 tristate "OMAP serial port support"
995 depends on ARCH_OMAP2PLUS
998 If you have a machine based on an Texas Instruments OMAP CPU you
999 can enable its onboard serial ports by enabling this option.
1001 By enabling this option you take advantage of dma feature available
1002 with the omap-serial driver. DMA support can be enabled from platform
1005 config SERIAL_OMAP_CONSOLE
1006 bool "Console on OMAP serial port"
1007 depends on SERIAL_OMAP=y
1008 select SERIAL_CORE_CONSOLE
1010 Select this option if you would like to use omap serial port as
1013 Even if you say Y here, the currently visible virtual console
1014 (/dev/tty0) will still be used as the system console by default, but
1015 you can alter that using a kernel command line option such as
1016 "console=ttyOx". (Try "man bootparam" or see the documentation of
1017 your boot loader about how to pass options to the kernel at
1020 config SERIAL_SIFIVE
1021 tristate "SiFive UART support"
1025 Select this option if you are building a kernel for a device that
1026 contains a SiFive UART IP block. This type of UART is present on
1027 SiFive FU540 SoCs, among others.
1029 config SERIAL_SIFIVE_CONSOLE
1030 bool "Console on SiFive UART"
1031 depends on SERIAL_SIFIVE=y
1032 select SERIAL_CORE_CONSOLE
1033 select SERIAL_EARLYCON
1035 Select this option if you would like to use a SiFive UART as the
1038 Even if you say Y here, the currently visible virtual console
1039 (/dev/tty0) will still be used as the system console by default, but
1040 you can alter that using a kernel command line option such as
1041 "console=ttySIFx". (Try "man bootparam" or see the documentation of
1042 your boot loader about how to pass options to the kernel at
1045 config SERIAL_LANTIQ
1046 bool "Lantiq serial driver"
1049 select SERIAL_CORE_CONSOLE
1050 select SERIAL_EARLYCON
1052 Support for console and UART on Lantiq SoCs.
1055 tristate "Freescale QUICC Engine serial port support"
1056 depends on QUICC_ENGINE
1060 This driver supports the QE serial ports on Freescale embedded
1061 PowerPC that contain a QUICC Engine.
1063 config SERIAL_SCCNXP
1064 tristate "SCCNXP serial port support"
1067 This selects support for an advanced UART from NXP (Philips).
1068 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1069 SC28L202, SCC68681 and SCC68692.
1071 config SERIAL_SCCNXP_CONSOLE
1072 bool "Console on SCCNXP serial port"
1073 depends on SERIAL_SCCNXP=y
1074 select SERIAL_CORE_CONSOLE
1076 Support for console on SCCNXP serial ports.
1078 config SERIAL_SC16IS7XX_CORE
1081 config SERIAL_SC16IS7XX
1082 tristate "SC16IS7xx serial support"
1084 depends on (SPI_MASTER && !I2C) || I2C
1086 This selects support for SC16IS7xx serial ports.
1087 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1088 SC16IS760 and SC16IS762. Select supported buses using options below.
1090 config SERIAL_SC16IS7XX_I2C
1091 bool "SC16IS7xx for I2C interface"
1092 depends on SERIAL_SC16IS7XX
1094 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1095 select REGMAP_I2C if I2C
1098 Enable SC16IS7xx driver on I2C bus,
1099 If required say y, and say n to i2c if not required,
1100 Enabled by default to support oldconfig.
1101 You must select at least one bus for the driver to be built.
1103 config SERIAL_SC16IS7XX_SPI
1104 bool "SC16IS7xx for spi interface"
1105 depends on SERIAL_SC16IS7XX
1106 depends on SPI_MASTER
1107 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1108 select REGMAP_SPI if SPI_MASTER
1110 Enable SC16IS7xx driver on SPI bus,
1111 If required say y, and say n to spi if not required,
1112 This is additional support to exsisting driver.
1113 You must select at least one bus for the driver to be built.
1115 config SERIAL_TIMBERDALE
1116 tristate "Support for timberdale UART"
1118 depends on X86_32 || COMPILE_TEST
1120 Add support for UART controller on timberdale.
1122 config SERIAL_BCM63XX
1123 tristate "Broadcom BCM63xx/BCM33xx UART support"
1125 depends on MIPS || ARM || COMPILE_TEST
1127 This enables the driver for the onchip UART core found on
1128 the following chipsets:
1130 BCM33xx (cable modem)
1131 BCM63xx/BCM63xxx (DSL)
1133 BCM7xxx (STB) - DOCSIS console
1135 config SERIAL_BCM63XX_CONSOLE
1136 bool "Console on BCM63xx serial port"
1137 depends on SERIAL_BCM63XX=y
1138 select SERIAL_CORE_CONSOLE
1139 select SERIAL_EARLYCON
1141 If you have enabled the serial port on the BCM63xx CPU
1142 you can make it the console by answering Y to this option.
1144 config SERIAL_GRLIB_GAISLER_APBUART
1145 tristate "GRLIB APBUART serial support"
1146 depends on OF && SPARC
1149 Add support for the GRLIB APBUART serial port.
1151 config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1152 bool "Console on GRLIB APBUART serial port"
1153 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1154 select SERIAL_CORE_CONSOLE
1156 Support for running a console on the GRLIB APBUART
1158 config SERIAL_ALTERA_JTAGUART
1159 tristate "Altera JTAG UART support"
1162 This driver supports the Altera JTAG UART port.
1164 config SERIAL_ALTERA_JTAGUART_CONSOLE
1165 bool "Altera JTAG UART console support"
1166 depends on SERIAL_ALTERA_JTAGUART=y
1167 select SERIAL_CORE_CONSOLE
1168 select SERIAL_EARLYCON
1170 Enable a Altera JTAG UART port to be the system console.
1172 config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1173 bool "Bypass output when no connection"
1174 depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1175 select SERIAL_CORE_CONSOLE
1177 Bypass console output and keep going even if there is no
1178 JTAG terminal connection with the host.
1180 config SERIAL_ALTERA_UART
1181 tristate "Altera UART support"
1184 This driver supports the Altera softcore UART port.
1186 config SERIAL_ALTERA_UART_MAXPORTS
1187 int "Maximum number of Altera UART ports"
1188 depends on SERIAL_ALTERA_UART
1191 This setting lets you define the maximum number of the Altera
1192 UART ports. The usual default varies from board to board, and
1193 this setting is a way of catering for that.
1195 config SERIAL_ALTERA_UART_BAUDRATE
1196 int "Default baudrate for Altera UART ports"
1197 depends on SERIAL_ALTERA_UART
1200 This setting lets you define what the default baudrate is for the
1201 Altera UART ports. The usual default varies from board to board,
1202 and this setting is a way of catering for that.
1204 config SERIAL_ALTERA_UART_CONSOLE
1205 bool "Altera UART console support"
1206 depends on SERIAL_ALTERA_UART=y
1207 select SERIAL_CORE_CONSOLE
1208 select SERIAL_EARLYCON
1210 Enable a Altera UART port to be the system console.
1212 config SERIAL_IFX6X60
1213 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1214 depends on GPIOLIB || COMPILE_TEST
1215 depends on SPI && HAS_DMA
1217 Support for the IFX6x60 modem devices on Intel MID platforms.
1219 config SERIAL_PCH_UART
1220 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1221 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
1224 This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1225 which is an IOH(Input/Output Hub) for x86 embedded processor.
1226 Enabling PCH_DMA, this PCH UART works as DMA mode.
1228 This driver also can be used for LAPIS Semiconductor IOH(Input/
1229 Output Hub), ML7213, ML7223 and ML7831.
1230 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1231 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1232 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1233 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1235 config SERIAL_PCH_UART_CONSOLE
1236 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1237 depends on SERIAL_PCH_UART=y
1238 select SERIAL_CORE_CONSOLE
1240 Say Y here if you wish to use the PCH UART as the system console
1241 (the system console is the device which receives all kernel messages and
1242 warnings and which allows logins in single user mode).
1244 config SERIAL_MXS_AUART
1245 tristate "MXS AUART support"
1246 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1248 select SERIAL_MCTRL_GPIO if GPIOLIB
1250 This driver supports the MXS and Alphascale ASM9260 Application
1253 config SERIAL_MXS_AUART_CONSOLE
1254 bool "MXS AUART console support"
1255 depends on SERIAL_MXS_AUART=y
1256 select SERIAL_CORE_CONSOLE
1258 Enable a MXS AUART port to be the system console.
1260 config SERIAL_XILINX_PS_UART
1261 tristate "Cadence (Xilinx Zynq) UART support"
1265 This driver supports the Cadence UART. It is found e.g. in Xilinx
1268 config SERIAL_XILINX_PS_UART_CONSOLE
1269 bool "Cadence UART console support"
1270 depends on SERIAL_XILINX_PS_UART=y
1271 select SERIAL_CORE_CONSOLE
1272 select SERIAL_EARLYCON
1274 Enable a Cadence UART port to be the system console.
1276 config SERIAL_AR933X
1277 tristate "AR933X serial port support"
1278 depends on HAVE_CLK && ATH79
1281 If you have an Atheros AR933X SOC based board and want to use the
1282 built-in UART of the SoC, say Y to this option.
1284 To compile this driver as a module, choose M here: the
1285 module will be called ar933x_uart.
1287 config SERIAL_AR933X_CONSOLE
1288 bool "Console on AR933X serial port"
1289 depends on SERIAL_AR933X=y
1290 select SERIAL_CORE_CONSOLE
1292 Enable a built-in UART port of the AR933X to be the system console.
1294 config SERIAL_AR933X_NR_UARTS
1295 int "Maximum number of AR933X serial ports"
1296 depends on SERIAL_AR933X
1299 Set this to the number of serial ports you want the driver
1302 config SERIAL_EFM32_UART
1303 tristate "EFM32 UART/USART port"
1304 depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1307 This driver support the USART and UART ports on
1308 Energy Micro's efm32 SoCs.
1310 config SERIAL_MPS2_UART_CONSOLE
1311 bool "MPS2 UART console support"
1312 depends on SERIAL_MPS2_UART
1313 select SERIAL_CORE_CONSOLE
1314 select SERIAL_EARLYCON
1316 config SERIAL_MPS2_UART
1317 bool "MPS2 UART port"
1318 depends on ARCH_MPS2 || COMPILE_TEST
1321 This driver support the UART ports on ARM MPS2.
1323 config SERIAL_EFM32_UART_CONSOLE
1324 bool "EFM32 UART/USART console support"
1325 depends on SERIAL_EFM32_UART=y
1326 select SERIAL_CORE_CONSOLE
1329 tristate "ARC UART driver support"
1332 Driver for on-chip UART for ARC(Synopsys) for the legacy
1333 FPGA Boards (ML50x/ARCAngel4)
1335 config SERIAL_ARC_CONSOLE
1336 bool "Console on ARC UART"
1337 depends on SERIAL_ARC=y
1338 select SERIAL_CORE_CONSOLE
1339 select SERIAL_EARLYCON
1341 Enable system Console on ARC UART
1343 config SERIAL_ARC_NR_PORTS
1344 int "Number of ARC UART ports"
1345 depends on SERIAL_ARC
1349 Set this to the number of serial ports you want the driver
1353 tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1357 This driver supports the Comtrol RocketPort EXPRESS and
1358 RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1359 These adapters use a "RocketPort 2" ASIC that is not compatible
1360 with the original RocketPort driver (CONFIG_ROCKETPORT).
1362 To compile this driver as a module, choose M here: the
1363 module will be called rp2.
1365 If you want to compile this driver into the kernel, say Y here. If
1366 you don't have a suitable RocketPort card installed, say N.
1368 config SERIAL_RP2_NR_UARTS
1369 int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1370 depends on SERIAL_RP2
1373 If multiple cards are present, the default limit of 32 ports may
1374 need to be increased.
1376 config SERIAL_FSL_LPUART
1377 tristate "Freescale lpuart serial port support"
1381 Support for the on-chip lpuart on some Freescale SOCs.
1383 config SERIAL_FSL_LPUART_CONSOLE
1384 bool "Console on Freescale lpuart serial port"
1385 depends on SERIAL_FSL_LPUART=y
1386 select SERIAL_CORE_CONSOLE
1387 select SERIAL_EARLYCON
1389 If you have enabled the lpuart serial port on the Freescale SoCs,
1390 you can make it the console by answering Y to this option.
1392 config SERIAL_FSL_LINFLEXUART
1393 tristate "Freescale LINFlexD UART serial port support"
1397 Support for the on-chip LINFlexD UART on some Freescale SOCs.
1399 config SERIAL_FSL_LINFLEXUART_CONSOLE
1400 bool "Console on Freescale LINFlexD UART serial port"
1401 depends on SERIAL_FSL_LINFLEXUART=y
1402 select SERIAL_CORE_CONSOLE
1403 select SERIAL_EARLYCON
1405 If you have enabled the LINFlexD UART serial port on the Freescale
1406 SoCs, you can make it the console by answering Y to this option.
1408 config SERIAL_CONEXANT_DIGICOLOR
1409 tristate "Conexant Digicolor CX92xxx USART serial port support"
1413 Support for the on-chip USART on Conexant Digicolor SoCs.
1415 config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1416 bool "Console on Conexant Digicolor serial port"
1417 depends on SERIAL_CONEXANT_DIGICOLOR=y
1418 select SERIAL_CORE_CONSOLE
1420 If you have enabled the USART serial port on Conexant Digicolor
1421 SoCs, you can make it the console by answering Y to this option.
1423 config SERIAL_ST_ASC
1424 tristate "ST ASC serial port support"
1426 depends on ARM || COMPILE_TEST
1428 This driver is for the on-chip Asychronous Serial Controller on
1429 STMicroelectronics STi SoCs.
1430 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1431 It support all industry standard baud rates.
1435 config SERIAL_ST_ASC_CONSOLE
1436 bool "Support for console on ST ASC"
1437 depends on SERIAL_ST_ASC=y
1438 select SERIAL_CORE_CONSOLE
1440 config SERIAL_MEN_Z135
1441 tristate "MEN 16z135 Support"
1445 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1448 This driver can also be build as a module. If so, the module will be called
1452 tristate "Support for Spreadtrum serial"
1453 depends on ARCH_SPRD
1456 This enables the driver for the Spreadtrum's serial.
1458 config SERIAL_SPRD_CONSOLE
1459 bool "Spreadtrum UART console support"
1460 depends on SERIAL_SPRD=y
1461 select SERIAL_CORE_CONSOLE
1462 select SERIAL_EARLYCON
1464 Support for early debug console using Spreadtrum's serial. This enables
1465 the console before standard serial driver is probed. This is enabled
1466 with "earlycon" on the kernel command line. The console is
1467 enabled when early_param is processed.
1470 tristate "STMicroelectronics STM32 serial port support"
1472 depends on ARCH_STM32 || COMPILE_TEST
1474 This driver is for the on-chip Serial Controller on
1475 STMicroelectronics STM32 MCUs.
1476 USART supports Rx & Tx functionality.
1477 It support all industry standard baud rates.
1481 config SERIAL_STM32_CONSOLE
1482 bool "Support for console on STM32"
1483 depends on SERIAL_STM32=y
1484 select SERIAL_CORE_CONSOLE
1486 config SERIAL_MVEBU_UART
1487 bool "Marvell EBU serial port support"
1488 depends on ARCH_MVEBU || COMPILE_TEST
1491 This driver is for Marvell EBU SoC's UART. If you have a machine
1492 based on the Armada-3700 SoC and wish to use the on-board serial
1497 config SERIAL_MVEBU_CONSOLE
1498 bool "Console on Marvell EBU serial port"
1499 depends on SERIAL_MVEBU_UART
1500 select SERIAL_CORE_CONSOLE
1501 select SERIAL_EARLYCON
1504 Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1505 (the system console is the device which receives all kernel messages
1506 and warnings and which allows logins in single user mode)
1510 tristate "Actions Semi Owl serial port support"
1511 depends on ARCH_ACTIONS || COMPILE_TEST
1514 This driver is for Actions Semiconductor S500/S900 SoC's UART.
1515 Say 'Y' here if you wish to use the on-board serial port.
1518 config SERIAL_OWL_CONSOLE
1519 bool "Console on Actions Semi Owl serial port"
1520 depends on SERIAL_OWL=y
1521 select SERIAL_CORE_CONSOLE
1522 select SERIAL_EARLYCON
1525 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART
1526 as the system console.
1529 bool "RDA Micro serial port support"
1530 depends on ARCH_RDA || COMPILE_TEST
1533 This driver is for RDA8810PL SoC's UART.
1534 Say 'Y' here if you wish to use the on-board serial port.
1537 config SERIAL_RDA_CONSOLE
1538 bool "Console on RDA Micro serial port"
1539 depends on SERIAL_RDA=y
1540 select SERIAL_CORE_CONSOLE
1541 select SERIAL_EARLYCON
1544 Say 'Y' here if you wish to use the RDA8810PL UART as the system
1545 console. Only earlycon is implemented currently.
1547 config SERIAL_MILBEAUT_USIO
1548 tristate "Milbeaut USIO/UART serial port support"
1549 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF)
1550 default ARCH_MILBEAUT
1553 This selects the USIO/UART IP found in Socionext Milbeaut SoCs.
1555 config SERIAL_MILBEAUT_USIO_PORTS
1556 int "Maximum number of CSIO/UART ports (1-8)"
1558 depends on SERIAL_MILBEAUT_USIO
1561 config SERIAL_MILBEAUT_USIO_CONSOLE
1562 bool "Support for console on MILBEAUT USIO/UART serial port"
1563 depends on SERIAL_MILBEAUT_USIO=y
1565 select SERIAL_CORE_CONSOLE
1566 select SERIAL_EARLYCON
1568 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut
1569 SoCs as the system console (the system console is the device which
1570 receives all kernel messages and warnings and which allows logins in
1575 config SERIAL_MCTRL_GPIO