2 # Serial device configuration
10 config SERIAL_EARLYCON
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_SB1250_DUART
89 tristate "BCM1xxx on-chip DUART serial support"
90 depends on SIBYTE_SB1xxx_SOC=y
94 Support for the asynchronous serial interface (DUART) included in
95 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that
96 the letter D in DUART stands for "dual", which is how the device
97 is implemented. Depending on the SOC configuration there may be
98 one or more DUARTs available of which all are handled.
100 If unsure, say Y. To compile this driver as a module, choose M here:
101 the module will be called sb1250-duart.
103 config SERIAL_SB1250_DUART_CONSOLE
104 bool "Support for console on a BCM1xxx DUART serial port"
105 depends on SERIAL_SB1250_DUART=y
106 select SERIAL_CORE_CONSOLE
109 If you say Y here, it will be possible to use a serial port as the
110 system console (the system console is the device which receives all
111 kernel messages and warnings and which allows logins in single user
117 bool "AT91 on-chip serial port support"
119 depends on ARCH_AT91 || COMPILE_TEST
121 select SERIAL_MCTRL_GPIO if GPIOLIB
123 This enables the driver for the on-chip UARTs of the Atmel
126 config SERIAL_ATMEL_CONSOLE
127 bool "Support for console on AT91 serial port"
128 depends on SERIAL_ATMEL=y
129 select SERIAL_CORE_CONSOLE
131 Say Y here if you wish to use an on-chip UART on a Atmel
132 AT91 processor as the system console (the system
133 console is the device which receives all kernel messages and
134 warnings and which allows logins in single user mode).
136 config SERIAL_ATMEL_PDC
137 bool "Support DMA transfers on AT91 serial port"
138 depends on SERIAL_ATMEL
141 Say Y here if you wish to use the PDC to do DMA transfers to
142 and from the Atmel AT91 serial port. In order to
143 actually use DMA transfers, make sure that the use_dma_tx
144 and use_dma_rx members in the atmel_uart_data struct is set
145 appropriately for each port.
147 Note that break and error handling currently doesn't work
148 properly when DMA is enabled. Make sure that ports where
149 this matters don't use DMA.
151 config SERIAL_ATMEL_TTYAT
152 bool "Install as device ttyATn instead of ttySn"
153 depends on SERIAL_ATMEL=y
155 Say Y here if you wish to have the internal AT91 UARTs
156 appear as /dev/ttyATn (major 204, minor starting at 154)
157 instead of the normal /dev/ttySn (major 4, minor starting at
158 64). This is necessary if you also want other UARTs, such as
159 external 8250/16C550 compatible UARTs.
160 The ttySn nodes are legally reserved for the 8250 serial driver
161 but are often misused by other serial drivers.
163 To use this, you should create suitable ttyATn device nodes in
164 /dev/, and pass "console=ttyATn" to the kernel.
166 Say Y if you have an external 8250/16C550 UART. If unsure, say N.
168 config SERIAL_KGDB_NMI
169 bool "Serial console over KGDB NMI debugger port"
170 depends on KGDB_SERIAL_CONSOLE
172 This special driver allows you to temporary use NMI debugger port
173 as a normal console (assuming that the port is attached to KGDB).
175 Unlike KDB's disable_nmi command, with this driver you are always
176 able to go back to the debugger using KGDB escape sequence ($3#33).
177 This is because this console driver processes the input in NMI
178 context, and thus is able to intercept the magic sequence.
180 Note that since the console interprets input and uses polling
181 communication methods, for things like PPP you still must fully
182 detach debugger port from the KGDB NMI (i.e. disable_nmi), and
188 bool "Micrel KS8695 (Centaur) serial port support"
189 depends on ARCH_KS8695
192 This selects the Micrel Centaur KS8695 UART. Say Y here.
194 config SERIAL_KS8695_CONSOLE
195 bool "Support for console on KS8695 (Centaur) serial port"
196 depends on SERIAL_KS8695=y
197 select SERIAL_CORE_CONSOLE
199 Say Y here if you wish to use a KS8695 (Centaur) UART as the
200 system console (the system console is the device which
201 receives all kernel messages and warnings and which allows
202 logins in single user mode).
205 tristate "Meson serial port support"
206 depends on ARCH_MESON
209 This enables the driver for the on-chip UARTs of the Amlogic
212 config SERIAL_MESON_CONSOLE
213 bool "Support for console on meson"
214 depends on SERIAL_MESON=y
215 select SERIAL_CORE_CONSOLE
216 select SERIAL_EARLYCON
218 Say Y here if you wish to use a Amlogic MesonX UART as the
219 system console (the system console is the device which
220 receives all kernel messages and warnings and which allows
221 logins in single user mode) as /dev/ttyAMLx.
223 config SERIAL_CLPS711X
224 tristate "CLPS711X serial port support"
225 depends on ARCH_CLPS711X || COMPILE_TEST
227 select SERIAL_MCTRL_GPIO if GPIOLIB
229 This enables the driver for the on-chip UARTs of the Cirrus
230 Logic EP711x/EP721x/EP731x processors.
232 config SERIAL_CLPS711X_CONSOLE
233 bool "Support for console on CLPS711X serial port"
234 depends on SERIAL_CLPS711X=y
235 select SERIAL_CORE_CONSOLE
237 Even if you say Y here, the currently visible virtual console
238 (/dev/tty0) will still be used as the system console by default, but
239 you can alter that using a kernel command line option such as
242 config SERIAL_SAMSUNG
243 tristate "Samsung SoC serial support"
244 depends on PLAT_SAMSUNG || ARCH_EXYNOS
247 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
248 providing /dev/ttySAC0, 1 and 2 (note, some machines may not
249 provide all of these ports, depending on how the serial port
252 config SERIAL_SAMSUNG_UARTS_4
254 depends on SERIAL_SAMSUNG
255 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
257 Internal node for the common case of 4 Samsung compatible UARTs
259 config SERIAL_SAMSUNG_UARTS
261 depends on SERIAL_SAMSUNG
262 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
265 Select the number of available UART ports for the Samsung S3C
268 config SERIAL_SAMSUNG_DEBUG
269 bool "Samsung SoC serial debug"
270 depends on SERIAL_SAMSUNG && DEBUG_LL
272 Add support for debugging the serial driver. Since this is
273 generally being used as a console, we use our own output
274 routines that go via the low-level debug printascii()
277 config SERIAL_SAMSUNG_CONSOLE
278 bool "Support for console on Samsung SoC serial port"
279 depends on SERIAL_SAMSUNG=y
280 select SERIAL_CORE_CONSOLE
281 select SERIAL_EARLYCON
283 Allow selection of the S3C24XX on-board serial ports for use as
286 Even if you say Y here, the currently visible virtual console
287 (/dev/tty0) will still be used as the system console by default, but
288 you can alter that using a kernel command line option such as
289 "console=ttySACx". (Try "man bootparam" or see the documentation of
290 your boot loader about how to pass options to the kernel at
293 config SERIAL_SIRFSOC
294 tristate "SiRF SoC Platform Serial port support"
298 Support for the on-chip UART on the CSR SiRFprimaII series,
299 providing /dev/ttySiRF0, 1 and 2 (note, some machines may not
300 provide all of these ports, depending on how the serial port
301 pins are configured).
303 config SERIAL_SIRFSOC_CONSOLE
304 bool "Support for console on SiRF SoC serial port"
305 depends on SERIAL_SIRFSOC=y
306 select SERIAL_CORE_CONSOLE
308 Even if you say Y here, the currently visible virtual console
309 (/dev/tty0) will still be used as the system console by default, but
310 you can alter that using a kernel command line option such as
311 "console=ttySiRFx". (Try "man bootparam" or see the documentation of
312 your boot loader about how to pass options to the kernel at
316 tristate "NVIDIA Tegra20/30 SoC serial controller"
317 depends on ARCH_TEGRA && TEGRA20_APB_DMA
320 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
321 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not
322 provide all of these ports, depending on how the serial port
323 are enabled). This driver uses the APB DMA to achieve higher baudrate
324 and better performance.
326 config SERIAL_MAX3100
327 tristate "MAX3100 support"
333 config SERIAL_MAX310X
334 tristate "MAX310X support"
335 depends on SPI_MASTER
337 select REGMAP_SPI if SPI_MASTER
340 This selects support for an advanced UART from Maxim (Dallas).
341 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830.
342 Each IC contains 128 words each of receive and transmit FIFO
343 that can be controlled through I2C or high-speed SPI.
345 Say Y here if you want to support this ICs.
348 bool "DECstation DZ serial driver"
349 depends on MACH_DECSTATION && 32BIT
353 DZ11-family serial controllers for DECstations and VAXstations,
354 including the DC7085, M7814, and M7819.
356 config SERIAL_DZ_CONSOLE
357 bool "Support console on DECstation DZ serial driver"
358 depends on SERIAL_DZ=y
359 select SERIAL_CORE_CONSOLE
362 If you say Y here, it will be possible to use a serial port as the
363 system console (the system console is the device which receives all
364 kernel messages and warnings and which allows logins in single user
367 Note that the firmware uses ttyS3 as the serial console on
368 DECstations that use this driver.
373 tristate "DECstation Z85C30 serial support"
374 depends on MACH_DECSTATION
378 Support for the Zilog 85C350 serial communications controller used
379 for serial ports in newer DECstation systems. These include the
380 DECsystem 5900 and all models of the DECstation and DECsystem 5000
381 systems except from model 200.
383 If unsure, say Y. To compile this driver as a module, choose M here:
384 the module will be called zs.
386 config SERIAL_ZS_CONSOLE
387 bool "Support for console on a DECstation Z85C30 serial port"
388 depends on SERIAL_ZS=y
389 select SERIAL_CORE_CONSOLE
392 If you say Y here, it will be possible to use a serial port as the
393 system console (the system console is the device which receives all
394 kernel messages and warnings and which allows logins in single user
397 Note that the firmware uses ttyS1 as the serial console on the
398 Maxine and ttyS3 on the others using this driver.
403 tristate "DC21285 serial port support"
404 depends on FOOTBRIDGE
407 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
408 PCI bridge you can enable its onboard serial port by enabling this
411 config SERIAL_21285_CONSOLE
412 bool "Console on DC21285 serial port"
413 depends on SERIAL_21285=y
414 select SERIAL_CORE_CONSOLE
416 If you have enabled the serial port on the 21285 footbridge you can
417 make it the console by answering Y to this option.
419 Even if you say Y here, the currently visible virtual console
420 (/dev/tty0) will still be used as the system console by default, but
421 you can alter that using a kernel command line option such as
422 "console=ttyFB". (Try "man bootparam" or see the documentation of
423 your boot loader (lilo or loadlin) about how to pass options to the
424 kernel at boot time.)
427 bool "Marvell MPSC serial port support"
431 Say Y here if you want to use the Marvell MPSC serial controller.
433 config SERIAL_MPSC_CONSOLE
434 bool "Support for console on Marvell MPSC serial port"
435 depends on SERIAL_MPSC
436 select SERIAL_CORE_CONSOLE
438 Say Y here if you want to support a serial console on a Marvell MPSC.
441 bool "PXA serial port support (DEPRECATED)"
442 depends on ARCH_PXA || ARCH_MMP
444 select SERIAL_8250_PXA if SERIAL_8250=y
445 select SERIAL_PXA_NON8250 if !SERIAL_8250=y
447 If you have a machine based on an Intel XScale PXA2xx CPU you
448 can enable its onboard serial ports by enabling this option.
450 Unless you have a specific need, you should use SERIAL_8250_PXA
453 config SERIAL_PXA_NON8250
455 depends on !SERIAL_8250
457 config SERIAL_PXA_CONSOLE
458 bool "Console on PXA serial port (DEPRECATED)"
459 depends on SERIAL_PXA
460 select SERIAL_CORE_CONSOLE
461 select SERIAL_8250_CONSOLE if SERIAL_8250=y
463 If you have enabled the serial port on the Intel XScale PXA
464 CPU you can make it the console by answering Y to this option.
466 Even if you say Y here, the currently visible virtual console
467 (/dev/tty0) will still be used as the system console by default, but
468 you can alter that using a kernel command line option such as
469 "console=ttySA0". (Try "man bootparam" or see the documentation of
470 your boot loader (lilo or loadlin) about how to pass options to the
471 kernel at boot time.)
473 Unless you have a specific need, you should use SERIAL_8250_PXA
474 and SERIAL_8250_CONSOLE instead of this.
477 bool "SA1100 serial port support"
478 depends on ARCH_SA1100
481 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
482 can enable its onboard serial port by enabling this option.
483 Please read <file:Documentation/arm/SA1100/serial_UART> for further
486 config SERIAL_SA1100_CONSOLE
487 bool "Console on SA1100 serial port"
488 depends on SERIAL_SA1100
489 select SERIAL_CORE_CONSOLE
491 If you have enabled the serial port on the SA1100/SA1110 StrongARM
492 CPU you can make it the console by answering Y to this option.
494 Even if you say Y here, the currently visible virtual console
495 (/dev/tty0) will still be used as the system console by default, but
496 you can alter that using a kernel command line option such as
497 "console=ttySA0". (Try "man bootparam" or see the documentation of
498 your boot loader (lilo or loadlin) about how to pass options to the
499 kernel at boot time.)
502 tristate "Blackfin serial port support"
505 select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
507 Add support for the built-in UARTs on the Blackfin.
509 To compile this driver as a module, choose M here: the
510 module is named bfin_uart.ko.
512 config SERIAL_BFIN_CONSOLE
513 bool "Console on Blackfin serial port"
514 depends on SERIAL_BFIN=y
515 select SERIAL_CORE_CONSOLE
519 depends on SERIAL_BFIN
520 default SERIAL_BFIN_DMA
522 This driver supports the built-in serial ports of the Blackfin family
525 config SERIAL_BFIN_DMA
527 depends on !DMA_UNCACHED_NONE && KGDB_SERIAL_CONSOLE=n
529 This driver works under DMA mode. If this option is selected, the
530 blackfin simple dma driver is also enabled.
532 config SERIAL_BFIN_PIO
535 This driver works under PIO mode.
539 config SERIAL_BFIN_UART0
541 depends on SERIAL_BFIN
545 config BFIN_UART0_CTSRTS
546 bool "Enable UART0 hardware flow control"
547 depends on SERIAL_BFIN_UART0
549 Enable hardware flow control in the driver.
551 config SERIAL_BFIN_UART1
553 depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561)
557 config BFIN_UART1_CTSRTS
558 bool "Enable UART1 hardware flow control"
559 depends on SERIAL_BFIN_UART1
561 Enable hardware flow control in the driver.
563 config SERIAL_BFIN_UART2
565 depends on SERIAL_BFIN && (BF54x || BF538 || BF539)
569 config BFIN_UART2_CTSRTS
570 bool "Enable UART2 hardware flow control"
571 depends on SERIAL_BFIN_UART2
573 Enable hardware flow control in the driver.
575 config SERIAL_BFIN_UART3
577 depends on SERIAL_BFIN && (BF54x)
581 config BFIN_UART3_CTSRTS
582 bool "Enable UART3 hardware flow control"
583 depends on SERIAL_BFIN_UART3
585 Enable hardware flow control in the driver.
588 tristate "IMX serial port support"
590 depends on ARCH_MXC || COMPILE_TEST
593 select SERIAL_MCTRL_GPIO if GPIOLIB
595 If you have a machine based on a Motorola IMX CPU you
596 can enable its onboard serial port by enabling this option.
598 config SERIAL_IMX_CONSOLE
599 bool "Console on IMX serial port"
600 depends on SERIAL_IMX=y
601 select SERIAL_CORE_CONSOLE
602 select SERIAL_EARLYCON if OF
604 If you have enabled the serial port on the Freescale IMX
605 CPU you can make it the console by answering Y to this option.
607 Even if you say Y here, the currently visible virtual console
608 (/dev/tty0) will still be used as the system console by default, but
609 you can alter that using a kernel command line option such as
610 "console=ttymxc0". (Try "man bootparam" or see the documentation of
611 your bootloader about how to pass options to the kernel at boot time.)
613 config SERIAL_UARTLITE
614 tristate "Xilinx uartlite serial port support"
618 Say Y here if you want to use the Xilinx uartlite serial controller.
620 To compile this driver as a module, choose M here: the
621 module will be called uartlite.
623 config SERIAL_UARTLITE_CONSOLE
624 bool "Support for console on Xilinx uartlite serial port"
625 depends on SERIAL_UARTLITE=y
626 select SERIAL_CORE_CONSOLE
627 select SERIAL_EARLYCON
629 Say Y here if you wish to use a Xilinx uartlite as the system
630 console (the system console is the device which receives all kernel
631 messages and warnings and which allows logins in single user mode).
633 config SERIAL_UARTLITE_NR_UARTS
634 int "Maximum number of uartlite serial ports"
635 depends on SERIAL_UARTLITE
639 Set this to the number of uartlites in your system, or the number
640 you think you might implement.
642 config SERIAL_SUNCORE
646 select SERIAL_CORE_CONSOLE
649 config SERIAL_SUNZILOG
650 tristate "Sun Zilog8530 serial support"
653 This driver supports the Zilog8530 serial ports found on many Sparc
654 systems. Say Y or M if you want to be able to these serial ports.
656 config SERIAL_SUNZILOG_CONSOLE
657 bool "Console on Sun Zilog8530 serial port"
658 depends on SERIAL_SUNZILOG=y
660 If you would like to be able to use the Zilog8530 serial port
661 on your Sparc system as the console, you can do so by answering
665 tristate "Sun SU serial support"
666 depends on SPARC && PCI
668 This driver supports the 8250 serial ports that run the keyboard and
669 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able
670 to these serial ports.
672 config SERIAL_SUNSU_CONSOLE
673 bool "Console on Sun SU serial port"
674 depends on SERIAL_SUNSU=y
676 If you would like to be able to use the SU serial port
677 on your Sparc system as the console, you can do so by answering
681 tristate "Serial MUX support"
686 Saying Y here will enable the hardware MUX serial driver for
687 the Nova, K class systems and D class with a 'remote control card'.
688 The hardware MUX is not 8250/16550 compatible therefore the
689 /dev/ttyB0 device is shared between the Serial MUX and the PDC
690 software console. The following steps need to be completed to use
693 1. create the device entry (mknod /dev/ttyB0 c 11 0)
694 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
695 3. Add device ttyB0 to /etc/securetty (if you want to log on as
696 root on this console.)
697 4. Change the kernel command console parameter to: console=ttyB0
699 config SERIAL_MUX_CONSOLE
700 bool "Support for console on serial MUX"
701 depends on SERIAL_MUX=y
702 select SERIAL_CORE_CONSOLE
706 bool "PDC software console support"
707 depends on PARISC && !SERIAL_MUX && VT
710 Saying Y here will enable the software based PDC console to be
711 used as the system console. This is useful for machines in
712 which the hardware based console has not been written yet. The
713 following steps must be completed to use the PDC console:
715 1. create the device entry (mknod /dev/ttyB0 c 11 0)
716 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
717 3. Add device ttyB0 to /etc/securetty (if you want to log on as
718 root on this console.)
719 4. Change the kernel command console parameter to: console=ttyB0
722 tristate "Sun Siemens SAB82532 serial support"
723 depends on SPARC && PCI
725 This driver supports the Siemens SAB82532 DUSCC serial ports on newer
726 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these
729 config SERIAL_SUNSAB_CONSOLE
730 bool "Console on Sun Siemens SAB82532 serial port"
731 depends on SERIAL_SUNSAB=y
733 If you would like to be able to use the SAB82532 serial port
734 on your Sparc system as the console, you can do so by answering
738 bool "Sun4v Hypervisor Console support"
741 This driver supports the console device found on SUN4V Sparc
742 systems. Say Y if you want to be able to use this device.
744 config SERIAL_IP22_ZILOG
745 tristate "SGI Zilog8530 serial support"
746 depends on SGI_HAS_ZILOG
749 This driver supports the Zilog8530 serial ports found on SGI
750 systems. Say Y or M if you want to be able to these serial ports.
752 config SERIAL_IP22_ZILOG_CONSOLE
753 bool "Console on SGI Zilog8530 serial port"
754 depends on SERIAL_IP22_ZILOG=y
755 select SERIAL_CORE_CONSOLE
758 tristate "SuperH SCI(F) serial port support"
759 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
761 select SERIAL_MCTRL_GPIO if GPIOLIB
763 config SERIAL_SH_SCI_NR_UARTS
764 int "Maximum number of SCI(F) serial ports" if EXPERT
765 depends on SERIAL_SH_SCI
767 default "10" if SUPERH
768 default "18" if ARCH_RENESAS
771 config SERIAL_SH_SCI_CONSOLE
772 bool "Support for console on SuperH SCI(F)" if EXPERT
773 depends on SERIAL_SH_SCI=y
774 select SERIAL_CORE_CONSOLE
777 config SERIAL_SH_SCI_EARLYCON
778 bool "Support for early console on SuperH SCI(F)" if EXPERT
779 depends on SERIAL_SH_SCI=y
780 select SERIAL_CORE_CONSOLE
781 select SERIAL_EARLYCON
782 default ARCH_RENESAS || H8300
784 config SERIAL_SH_SCI_DMA
785 bool "DMA support" if EXPERT
786 depends on SERIAL_SH_SCI && DMA_ENGINE
789 config SERIAL_PNX8XXX
790 bool "Enable PNX8XXX SoCs' UART Support"
791 depends on SOC_PNX833X
794 If you have a MIPS-based Philips SoC such as PNX8330 and you want
795 to use serial ports, say Y. Otherwise, say N.
797 config SERIAL_PNX8XXX_CONSOLE
798 bool "Enable PNX8XX0 serial console"
799 depends on SERIAL_PNX8XXX
800 select SERIAL_CORE_CONSOLE
802 If you have a MIPS-based Philips SoC such as PNX8330 and you want
803 to use serial console, say Y. Otherwise, say N.
805 config SERIAL_HS_LPC32XX
806 tristate "LPC32XX high speed serial port support"
807 depends on ARCH_LPC32XX && OF
810 Support for the LPC32XX high speed serial ports (up to 900kbps).
811 Those are UARTs completely different from the Standard UARTs on the
813 Choose M or Y here to build this driver.
815 config SERIAL_HS_LPC32XX_CONSOLE
816 bool "Enable LPC32XX high speed UART serial console"
817 depends on SERIAL_HS_LPC32XX=y
818 select SERIAL_CORE_CONSOLE
820 If you would like to be able to use one of the high speed serial
821 ports on the LPC32XX as the console, you can do so by answering
827 config SERIAL_CORE_CONSOLE
834 bool "Coldfire serial support"
838 This serial driver supports the Freescale Coldfire serial ports.
840 config SERIAL_MCF_BAUDRATE
841 int "Default baudrate for Coldfire serial ports"
842 depends on SERIAL_MCF
845 This setting lets you define what the default baudrate is for the
846 ColdFire serial ports. The usual default varies from board to board,
847 and this setting is a way of catering for that.
849 config SERIAL_MCF_CONSOLE
850 bool "Coldfire serial console support"
851 depends on SERIAL_MCF
852 select SERIAL_CORE_CONSOLE
854 Enable a ColdFire internal serial port to be the system console.
856 config SERIAL_PMACZILOG
857 tristate "Mac or PowerMac z85c30 ESCC support"
858 depends on (M68K && MAC) || PPC_PMAC
861 This driver supports the Zilog z85C30 serial ports found on
863 Say Y or M if you want to be able to these serial ports.
865 config SERIAL_PMACZILOG_TTYS
866 bool "Use ttySn device nodes for Zilog z85c30"
867 depends on SERIAL_PMACZILOG
869 The pmac_zilog driver for the z85C30 chip on many powermacs
870 historically used the device numbers for /dev/ttySn. The
871 8250 serial port driver also uses these numbers, which means
872 the two drivers being unable to coexist; you could not use
873 both z85C30 and 8250 type ports at the same time.
875 If this option is not selected, the pmac_zilog driver will
876 use the device numbers allocated for /dev/ttyPZn. This allows
877 the pmac_zilog and 8250 drivers to co-exist, but may cause
878 existing userspace setups to break. Programs that need to
879 access the built-in serial ports on powermacs will need to
880 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
882 If you enable this option, any z85c30 ports in the system will
883 be registered as ttyS0 onwards as in the past, and you will be
884 unable to use the 8250 module for PCMCIA or other 16C550-style
887 Say N unless you need the z85c30 ports on your (Power)Mac
888 to appear as /dev/ttySn.
890 config SERIAL_PMACZILOG_CONSOLE
891 bool "Console on Mac or PowerMac z85c30 serial port"
892 depends on SERIAL_PMACZILOG=y
893 select SERIAL_CORE_CONSOLE
895 If you would like to be able to use the z85c30 serial port
896 on your (Power)Mac as the console, you can do so by answering
900 tristate "CPM SCC/SMC serial port support"
901 depends on CPM2 || CPM1
904 This driver supports the SCC and SMC serial ports on Motorola
905 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
907 config SERIAL_CPM_CONSOLE
908 bool "Support for console on CPM SCC/SMC serial port"
909 depends on SERIAL_CPM=y
910 select SERIAL_CORE_CONSOLE
912 Say Y here if you wish to use a SCC or SMC CPM UART as the system
913 console (the system console is the device which receives all kernel
914 messages and warnings and which allows logins in single user mode).
916 Even if you say Y here, the currently visible framebuffer console
917 (/dev/tty0) will still be used as the system console by default, but
918 you can alter that using a kernel command line option such as
919 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
920 your boot loader (lilo or loadlin) about how to pass options to the
921 kernel at boot time.)
923 config SERIAL_SGI_L1_CONSOLE
924 bool "SGI Altix L1 serial console support"
925 depends on IA64_GENERIC || IA64_SGI_SN2
927 select SERIAL_CORE_CONSOLE
929 If you have an SGI Altix and you would like to use the system
930 controller serial port as your console (you want this!),
931 say Y. Otherwise, say N.
934 tristate "Microchip PIC32 serial support"
935 depends on MACH_PIC32
938 If you have a PIC32, this driver supports the serial ports.
940 Say Y or M to use PIC32 serial ports, otherwise say N. Note that
941 to use a serial port as a console, this must be included in kernel and
944 config SERIAL_PIC32_CONSOLE
945 bool "PIC32 serial console support"
946 depends on SERIAL_PIC32
947 select SERIAL_CORE_CONSOLE
949 If you have a PIC32, this driver supports the putting a console on one
952 Say Y to use the PIC32 console, otherwise say N.
954 config SERIAL_MPC52xx
955 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
956 depends on PPC_MPC52xx || PPC_MPC512x
959 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
960 like to use them, you must answer Y or M to this option. Note that
961 for use as console, it must be included in kernel and not as a
964 config SERIAL_MPC52xx_CONSOLE
965 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
966 depends on SERIAL_MPC52xx=y
967 select SERIAL_CORE_CONSOLE
969 Select this options if you'd like to use one of the PSC serial port
970 of the Freescale MPC52xx family as a console.
972 config SERIAL_MPC52xx_CONSOLE_BAUD
973 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
974 depends on SERIAL_MPC52xx_CONSOLE=y
977 Select the MPC52xx console baud rate.
978 This value is only used if the bootloader doesn't pass in the
982 tristate "IBM Multiport Serial Adapter"
983 depends on PCI && PPC_PSERIES
987 This driver is for a family of multiport serial adapters
988 including 2 port RVX, 2 port internal modem, 4 port internal
989 modem and a split 1 port RVX and 1 port internal modem.
991 This driver can also be built as a module. If so, the module
994 config SERIAL_M32R_SIO
1000 Say Y here if you want to use the M32R serial controller.
1002 config SERIAL_M32R_SIO_CONSOLE
1003 bool "use SIO console"
1004 depends on SERIAL_M32R_SIO=y
1005 select SERIAL_CORE_CONSOLE
1007 Say Y here if you want to support a serial console.
1009 If you use an M3T-M32700UT or an OPSPUT platform,
1010 please say also y for SERIAL_M32R_PLDSIO.
1012 config SERIAL_M32R_PLDSIO
1013 bool "M32R SIO I/F on a PLD"
1014 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1017 Say Y here if you want to use the M32R serial controller
1018 on a PLD (Programmable Logic Device).
1020 If you use an M3T-M32700UT or an OPSPUT platform,
1024 bool "TMPTX39XX/49XX SIO support"
1025 depends on HAS_TXX9_SERIAL
1029 config HAS_TXX9_SERIAL
1032 config SERIAL_TXX9_NR_UARTS
1033 int "Maximum number of TMPTX39XX/49XX SIO ports"
1034 depends on SERIAL_TXX9
1037 config SERIAL_TXX9_CONSOLE
1038 bool "TMPTX39XX/49XX SIO Console support"
1039 depends on SERIAL_TXX9=y
1040 select SERIAL_CORE_CONSOLE
1042 config SERIAL_TXX9_STDSERIAL
1043 bool "TX39XX/49XX SIO act as standard serial"
1044 depends on !SERIAL_8250 && SERIAL_TXX9
1046 config SERIAL_VR41XX
1047 tristate "NEC VR4100 series Serial Interface Unit support"
1048 depends on CPU_VR41XX
1051 If you have a NEC VR4100 series processor and you want to use
1052 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1053 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1055 config SERIAL_VR41XX_CONSOLE
1056 bool "Enable NEC VR4100 series Serial Interface Unit console"
1057 depends on SERIAL_VR41XX=y
1058 select SERIAL_CORE_CONSOLE
1060 If you have a NEC VR4100 series processor and you want to use
1061 a console on a serial port, say Y. Otherwise, say N.
1064 tristate "Digi International NEO and Classic PCI Support"
1068 This is a driver for Digi International's Neo and Classic series
1069 of cards which provide multiple serial ports. You would need
1070 something like this to connect more than two modems to your Linux
1071 box, for instance in order to become a dial-in server. This driver
1072 supports PCI boards only.
1074 If you have a card like this, say Y here, otherwise say N.
1076 To compile this driver as a module, choose M here: the
1077 module will be called jsm.
1079 config SERIAL_SGI_IOC4
1080 tristate "SGI IOC4 controller serial support"
1081 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1084 If you have an SGI Altix with an IOC4 based Base IO card
1085 and wish to use the serial ports on this card, say Y.
1088 config SERIAL_SGI_IOC3
1089 tristate "SGI Altix IOC3 serial support"
1090 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1093 If you have an SGI Altix with an IOC3 serial card,
1094 say Y or M. Otherwise, say N.
1097 tristate "MSM on-chip serial port support"
1098 depends on ARCH_QCOM
1101 config SERIAL_MSM_CONSOLE
1102 bool "MSM serial console support"
1103 depends on SERIAL_MSM=y
1104 select SERIAL_CORE_CONSOLE
1105 select SERIAL_EARLYCON
1107 config SERIAL_VT8500
1108 bool "VIA VT8500 on-chip serial port support"
1109 depends on ARCH_VT8500
1112 config SERIAL_VT8500_CONSOLE
1113 bool "VIA VT8500 serial console support"
1114 depends on SERIAL_VT8500=y
1115 select SERIAL_CORE_CONSOLE
1117 config SERIAL_ETRAXFS
1118 bool "ETRAX FS serial port support"
1119 depends on ETRAX_ARCH_V32 && OF
1121 select SERIAL_MCTRL_GPIO if GPIOLIB
1123 config SERIAL_ETRAXFS_CONSOLE
1124 bool "ETRAX FS serial console support"
1125 depends on SERIAL_ETRAXFS
1126 select SERIAL_CORE_CONSOLE
1129 tristate "NetX serial port support"
1130 depends on ARCH_NETX
1133 If you have a machine based on a Hilscher NetX SoC you
1134 can enable its onboard serial port by enabling this option.
1136 To compile this driver as a module, choose M here: the
1137 module will be called netx-serial.
1139 config SERIAL_NETX_CONSOLE
1140 bool "Console on NetX serial port"
1141 depends on SERIAL_NETX=y
1142 select SERIAL_CORE_CONSOLE
1144 If you have enabled the serial port on the Hilscher NetX SoC
1145 you can make it the console by answering Y to this option.
1148 tristate "OMAP serial port support"
1149 depends on ARCH_OMAP2PLUS
1152 If you have a machine based on an Texas Instruments OMAP CPU you
1153 can enable its onboard serial ports by enabling this option.
1155 By enabling this option you take advantage of dma feature available
1156 with the omap-serial driver. DMA support can be enabled from platform
1159 config SERIAL_OMAP_CONSOLE
1160 bool "Console on OMAP serial port"
1161 depends on SERIAL_OMAP=y
1162 select SERIAL_CORE_CONSOLE
1164 Select this option if you would like to use omap serial port as
1167 Even if you say Y here, the currently visible virtual console
1168 (/dev/tty0) will still be used as the system console by default, but
1169 you can alter that using a kernel command line option such as
1170 "console=ttyOx". (Try "man bootparam" or see the documentation of
1171 your boot loader about how to pass options to the kernel at
1174 config SERIAL_LANTIQ
1175 bool "Lantiq serial driver"
1178 select SERIAL_CORE_CONSOLE
1179 select SERIAL_EARLYCON
1181 Support for console and UART on Lantiq SoCs.
1184 tristate "Freescale QUICC Engine serial port support"
1185 depends on QUICC_ENGINE
1190 This driver supports the QE serial ports on Freescale embedded
1191 PowerPC that contain a QUICC Engine.
1193 config SERIAL_SCCNXP
1194 tristate "SCCNXP serial port support"
1197 This selects support for an advanced UART from NXP (Philips).
1198 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1199 SC28L202, SCC68681 and SCC68692.
1201 config SERIAL_SCCNXP_CONSOLE
1202 bool "Console on SCCNXP serial port"
1203 depends on SERIAL_SCCNXP=y
1204 select SERIAL_CORE_CONSOLE
1206 Support for console on SCCNXP serial ports.
1208 config SERIAL_SC16IS7XX_CORE
1211 config SERIAL_SC16IS7XX
1212 tristate "SC16IS7xx serial support"
1214 depends on (SPI_MASTER && !I2C) || I2C
1216 This selects support for SC16IS7xx serial ports.
1217 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1218 SC16IS760 and SC16IS762. Select supported buses using options below.
1220 config SERIAL_SC16IS7XX_I2C
1221 bool "SC16IS7xx for I2C interface"
1222 depends on SERIAL_SC16IS7XX
1224 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1225 select REGMAP_I2C if I2C
1228 Enable SC16IS7xx driver on I2C bus,
1229 If required say y, and say n to i2c if not required,
1230 Enabled by default to support oldconfig.
1231 You must select at least one bus for the driver to be built.
1233 config SERIAL_SC16IS7XX_SPI
1234 bool "SC16IS7xx for spi interface"
1235 depends on SERIAL_SC16IS7XX
1236 depends on SPI_MASTER
1237 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1238 select REGMAP_SPI if SPI_MASTER
1240 Enable SC16IS7xx driver on SPI bus,
1241 If required say y, and say n to spi if not required,
1242 This is additional support to exsisting driver.
1243 You must select at least one bus for the driver to be built.
1245 config SERIAL_BFIN_SPORT
1246 tristate "Blackfin SPORT emulate UART"
1250 Enable SPORT emulate UART on Blackfin series.
1252 To compile this driver as a module, choose M here: the
1253 module will be called bfin_sport_uart.
1255 config SERIAL_BFIN_SPORT_CONSOLE
1256 bool "Console on Blackfin sport emulated uart"
1257 depends on SERIAL_BFIN_SPORT=y
1258 select SERIAL_CORE_CONSOLE
1260 config SERIAL_BFIN_SPORT0_UART
1261 bool "Enable UART over SPORT0"
1262 depends on SERIAL_BFIN_SPORT && !(BF542 || BF544)
1264 Enable UART over SPORT0
1266 config SERIAL_BFIN_SPORT0_UART_CTSRTS
1267 bool "Enable UART over SPORT0 hardware flow control"
1268 depends on SERIAL_BFIN_SPORT0_UART
1270 Enable hardware flow control in the driver.
1272 config SERIAL_BFIN_SPORT1_UART
1273 bool "Enable UART over SPORT1"
1274 depends on SERIAL_BFIN_SPORT
1276 Enable UART over SPORT1
1278 config SERIAL_BFIN_SPORT1_UART_CTSRTS
1279 bool "Enable UART over SPORT1 hardware flow control"
1280 depends on SERIAL_BFIN_SPORT1_UART
1282 Enable hardware flow control in the driver.
1284 config SERIAL_BFIN_SPORT2_UART
1285 bool "Enable UART over SPORT2"
1286 depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1288 Enable UART over SPORT2
1290 config SERIAL_BFIN_SPORT2_UART_CTSRTS
1291 bool "Enable UART over SPORT2 hardware flow control"
1292 depends on SERIAL_BFIN_SPORT2_UART
1294 Enable hardware flow control in the driver.
1296 config SERIAL_BFIN_SPORT3_UART
1297 bool "Enable UART over SPORT3"
1298 depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1300 Enable UART over SPORT3
1302 config SERIAL_BFIN_SPORT3_UART_CTSRTS
1303 bool "Enable UART over SPORT3 hardware flow control"
1304 depends on SERIAL_BFIN_SPORT3_UART
1306 Enable hardware flow control in the driver.
1308 config SERIAL_TIMBERDALE
1309 tristate "Support for timberdale UART"
1311 depends on X86_32 || COMPILE_TEST
1313 Add support for UART controller on timberdale.
1315 config SERIAL_BCM63XX
1316 tristate "Broadcom BCM63xx/BCM33xx UART support"
1318 depends on MIPS || ARM || COMPILE_TEST
1320 This enables the driver for the onchip UART core found on
1321 the following chipsets:
1323 BCM33xx (cable modem)
1324 BCM63xx/BCM63xxx (DSL)
1326 BCM7xxx (STB) - DOCSIS console
1328 config SERIAL_BCM63XX_CONSOLE
1329 bool "Console on BCM63xx serial port"
1330 depends on SERIAL_BCM63XX=y
1331 select SERIAL_CORE_CONSOLE
1332 select SERIAL_EARLYCON
1334 If you have enabled the serial port on the BCM63xx CPU
1335 you can make it the console by answering Y to this option.
1337 config SERIAL_GRLIB_GAISLER_APBUART
1338 tristate "GRLIB APBUART serial support"
1339 depends on OF && SPARC
1342 Add support for the GRLIB APBUART serial port.
1344 config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1345 bool "Console on GRLIB APBUART serial port"
1346 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1347 select SERIAL_CORE_CONSOLE
1349 Support for running a console on the GRLIB APBUART
1351 config SERIAL_ALTERA_JTAGUART
1352 tristate "Altera JTAG UART support"
1355 This driver supports the Altera JTAG UART port.
1357 config SERIAL_ALTERA_JTAGUART_CONSOLE
1358 bool "Altera JTAG UART console support"
1359 depends on SERIAL_ALTERA_JTAGUART=y
1360 select SERIAL_CORE_CONSOLE
1361 select SERIAL_EARLYCON
1363 Enable a Altera JTAG UART port to be the system console.
1365 config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1366 bool "Bypass output when no connection"
1367 depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1368 select SERIAL_CORE_CONSOLE
1370 Bypass console output and keep going even if there is no
1371 JTAG terminal connection with the host.
1373 config SERIAL_ALTERA_UART
1374 tristate "Altera UART support"
1377 This driver supports the Altera softcore UART port.
1379 config SERIAL_ALTERA_UART_MAXPORTS
1380 int "Maximum number of Altera UART ports"
1381 depends on SERIAL_ALTERA_UART
1384 This setting lets you define the maximum number of the Altera
1385 UART ports. The usual default varies from board to board, and
1386 this setting is a way of catering for that.
1388 config SERIAL_ALTERA_UART_BAUDRATE
1389 int "Default baudrate for Altera UART ports"
1390 depends on SERIAL_ALTERA_UART
1393 This setting lets you define what the default baudrate is for the
1394 Altera UART ports. The usual default varies from board to board,
1395 and this setting is a way of catering for that.
1397 config SERIAL_ALTERA_UART_CONSOLE
1398 bool "Altera UART console support"
1399 depends on SERIAL_ALTERA_UART=y
1400 select SERIAL_CORE_CONSOLE
1401 select SERIAL_EARLYCON
1403 Enable a Altera UART port to be the system console.
1405 config SERIAL_IFX6X60
1406 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1407 depends on GPIOLIB || COMPILE_TEST
1408 depends on SPI && HAS_DMA
1410 Support for the IFX6x60 modem devices on Intel MID platforms.
1412 config SERIAL_PCH_UART
1413 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1414 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
1417 This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1418 which is an IOH(Input/Output Hub) for x86 embedded processor.
1419 Enabling PCH_DMA, this PCH UART works as DMA mode.
1421 This driver also can be used for LAPIS Semiconductor IOH(Input/
1422 Output Hub), ML7213, ML7223 and ML7831.
1423 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1424 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1425 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1426 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1428 config SERIAL_PCH_UART_CONSOLE
1429 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1430 depends on SERIAL_PCH_UART=y
1431 select SERIAL_CORE_CONSOLE
1433 Say Y here if you wish to use the PCH UART as the system console
1434 (the system console is the device which receives all kernel messages and
1435 warnings and which allows logins in single user mode).
1437 config SERIAL_MXS_AUART
1438 tristate "MXS AUART support"
1440 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1442 select SERIAL_MCTRL_GPIO if GPIOLIB
1444 This driver supports the MXS and Alphascale ASM9260 Application
1447 config SERIAL_MXS_AUART_CONSOLE
1448 bool "MXS AUART console support"
1449 depends on SERIAL_MXS_AUART=y
1450 select SERIAL_CORE_CONSOLE
1452 Enable a MXS AUART port to be the system console.
1454 config SERIAL_XILINX_PS_UART
1455 tristate "Cadence (Xilinx Zynq) UART support"
1459 This driver supports the Cadence UART. It is found e.g. in Xilinx
1462 config SERIAL_XILINX_PS_UART_CONSOLE
1463 bool "Cadence UART console support"
1464 depends on SERIAL_XILINX_PS_UART=y
1465 select SERIAL_CORE_CONSOLE
1466 select SERIAL_EARLYCON
1468 Enable a Cadence UART port to be the system console.
1470 config SERIAL_AR933X
1471 tristate "AR933X serial port support"
1472 depends on HAVE_CLK && SOC_AR933X
1475 If you have an Atheros AR933X SOC based board and want to use the
1476 built-in UART of the SoC, say Y to this option.
1478 To compile this driver as a module, choose M here: the
1479 module will be called ar933x_uart.
1481 config SERIAL_AR933X_CONSOLE
1482 bool "Console on AR933X serial port"
1483 depends on SERIAL_AR933X=y
1484 select SERIAL_CORE_CONSOLE
1486 Enable a built-in UART port of the AR933X to be the system console.
1488 config SERIAL_AR933X_NR_UARTS
1489 int "Maximum number of AR933X serial ports"
1490 depends on SERIAL_AR933X
1493 Set this to the number of serial ports you want the driver
1496 config SERIAL_EFM32_UART
1497 tristate "EFM32 UART/USART port"
1498 depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1501 This driver support the USART and UART ports on
1502 Energy Micro's efm32 SoCs.
1504 config SERIAL_MPS2_UART_CONSOLE
1505 bool "MPS2 UART console support"
1506 depends on SERIAL_MPS2_UART
1507 select SERIAL_CORE_CONSOLE
1508 select SERIAL_EARLYCON
1510 config SERIAL_MPS2_UART
1511 bool "MPS2 UART port"
1512 depends on ARCH_MPS2 || COMPILE_TEST
1515 This driver support the UART ports on ARM MPS2.
1517 config SERIAL_EFM32_UART_CONSOLE
1518 bool "EFM32 UART/USART console support"
1519 depends on SERIAL_EFM32_UART=y
1520 select SERIAL_CORE_CONSOLE
1522 config SERIAL_TILEGX
1523 tristate "TILE-Gx on-chip serial port support"
1525 select TILE_GXIO_UART
1528 This device provides access to the on-chip UARTs on the TILE-Gx
1532 tristate "ARC UART driver support"
1535 Driver for on-chip UART for ARC(Synopsys) for the legacy
1536 FPGA Boards (ML50x/ARCAngel4)
1538 config SERIAL_ARC_CONSOLE
1539 bool "Console on ARC UART"
1540 depends on SERIAL_ARC=y
1541 select SERIAL_CORE_CONSOLE
1542 select SERIAL_EARLYCON
1544 Enable system Console on ARC UART
1546 config SERIAL_ARC_NR_PORTS
1547 int "Number of ARC UART ports"
1548 depends on SERIAL_ARC
1552 Set this to the number of serial ports you want the driver
1556 tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1560 This driver supports the Comtrol RocketPort EXPRESS and
1561 RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1562 These adapters use a "RocketPort 2" ASIC that is not compatible
1563 with the original RocketPort driver (CONFIG_ROCKETPORT).
1565 To compile this driver as a module, choose M here: the
1566 module will be called rp2.
1568 If you want to compile this driver into the kernel, say Y here. If
1569 you don't have a suitable RocketPort card installed, say N.
1571 config SERIAL_RP2_NR_UARTS
1572 int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1573 depends on SERIAL_RP2
1576 If multiple cards are present, the default limit of 32 ports may
1577 need to be increased.
1579 config SERIAL_FSL_LPUART
1580 tristate "Freescale lpuart serial port support"
1584 Support for the on-chip lpuart on some Freescale SOCs.
1586 config SERIAL_FSL_LPUART_CONSOLE
1587 bool "Console on Freescale lpuart serial port"
1588 depends on SERIAL_FSL_LPUART=y
1589 select SERIAL_CORE_CONSOLE
1590 select SERIAL_EARLYCON
1592 If you have enabled the lpuart serial port on the Freescale SoCs,
1593 you can make it the console by answering Y to this option.
1595 config SERIAL_CONEXANT_DIGICOLOR
1596 tristate "Conexant Digicolor CX92xxx USART serial port support"
1600 Support for the on-chip USART on Conexant Digicolor SoCs.
1602 config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1603 bool "Console on Conexant Digicolor serial port"
1604 depends on SERIAL_CONEXANT_DIGICOLOR=y
1605 select SERIAL_CORE_CONSOLE
1607 If you have enabled the USART serial port on Conexant Digicolor
1608 SoCs, you can make it the console by answering Y to this option.
1610 config SERIAL_ST_ASC
1611 tristate "ST ASC serial port support"
1613 depends on ARM || COMPILE_TEST
1615 This driver is for the on-chip Asychronous Serial Controller on
1616 STMicroelectronics STi SoCs.
1617 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1618 It support all industry standard baud rates.
1622 config SERIAL_ST_ASC_CONSOLE
1623 bool "Support for console on ST ASC"
1624 depends on SERIAL_ST_ASC=y
1625 select SERIAL_CORE_CONSOLE
1627 config SERIAL_MEN_Z135
1628 tristate "MEN 16z135 Support"
1632 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1635 This driver can also be build as a module. If so, the module will be called
1639 tristate "Support for Spreadtrum serial"
1640 depends on ARCH_SPRD
1643 This enables the driver for the Spreadtrum's serial.
1645 config SERIAL_SPRD_CONSOLE
1646 bool "Spreadtrum UART console support"
1647 depends on SERIAL_SPRD=y
1648 select SERIAL_CORE_CONSOLE
1649 select SERIAL_EARLYCON
1651 Support for early debug console using Spreadtrum's serial. This enables
1652 the console before standard serial driver is probed. This is enabled
1653 with "earlycon" on the kernel command line. The console is
1654 enabled when early_param is processed.
1657 tristate "STMicroelectronics STM32 serial port support"
1660 depends on ARCH_STM32 || COMPILE_TEST
1662 This driver is for the on-chip Serial Controller on
1663 STMicroelectronics STM32 MCUs.
1664 USART supports Rx & Tx functionality.
1665 It support all industry standard baud rates.
1669 config SERIAL_STM32_CONSOLE
1670 bool "Support for console on STM32"
1671 depends on SERIAL_STM32=y
1672 select SERIAL_CORE_CONSOLE
1674 config SERIAL_MVEBU_UART
1675 bool "Marvell EBU serial port support"
1676 depends on ARCH_MVEBU || COMPILE_TEST
1679 This driver is for Marvell EBU SoC's UART. If you have a machine
1680 based on the Armada-3700 SoC and wish to use the on-board serial
1685 config SERIAL_MVEBU_CONSOLE
1686 bool "Console on Marvell EBU serial port"
1687 depends on SERIAL_MVEBU_UART
1688 select SERIAL_CORE_CONSOLE
1689 select SERIAL_EARLYCON
1692 Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1693 (the system console is the device which receives all kernel messages
1694 and warnings and which allows logins in single user mode)
1698 tristate "Actions Semi Owl serial port support"
1699 depends on ARCH_ACTIONS || COMPILE_TEST
1702 This driver is for Actions Semiconductor S500/S900 SoC's UART.
1703 Say 'Y' here if you wish to use the on-board serial port.
1706 config SERIAL_OWL_CONSOLE
1707 bool "Console on Actions Semi Owl serial port"
1708 depends on SERIAL_OWL=y
1709 select SERIAL_CORE_CONSOLE
1710 select SERIAL_EARLYCON
1713 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART
1714 as the system console.
1718 config SERIAL_MCTRL_GPIO