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 / AT32 on-chip serial port support"
119 depends on ARCH_AT91 || AVR32 || COMPILE_TEST
121 select SERIAL_MCTRL_GPIO if GPIOLIB
123 This enables the driver for the on-chip UARTs of the Atmel
124 AT91 and AT32 processors.
126 config SERIAL_ATMEL_CONSOLE
127 bool "Support for console on AT91 / AT32 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 or AT32 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 / AT32 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 / AT32 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 / AT32 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"
765 depends on SERIAL_SH_SCI
768 config SERIAL_SH_SCI_CONSOLE
769 bool "Support for console on SuperH SCI(F)"
770 depends on SERIAL_SH_SCI=y
771 select SERIAL_CORE_CONSOLE
773 config SERIAL_SH_SCI_EARLYCON
774 bool "Support for early console on SuperH SCI(F)"
775 depends on SERIAL_SH_SCI=y
776 select SERIAL_CORE_CONSOLE
777 select SERIAL_EARLYCON
779 config SERIAL_SH_SCI_DMA
781 depends on SERIAL_SH_SCI && DMA_ENGINE
783 config SERIAL_PNX8XXX
784 bool "Enable PNX8XXX SoCs' UART Support"
785 depends on SOC_PNX833X
788 If you have a MIPS-based Philips SoC such as PNX8330 and you want
789 to use serial ports, say Y. Otherwise, say N.
791 config SERIAL_PNX8XXX_CONSOLE
792 bool "Enable PNX8XX0 serial console"
793 depends on SERIAL_PNX8XXX
794 select SERIAL_CORE_CONSOLE
796 If you have a MIPS-based Philips SoC such as PNX8330 and you want
797 to use serial console, say Y. Otherwise, say N.
799 config SERIAL_HS_LPC32XX
800 tristate "LPC32XX high speed serial port support"
801 depends on ARCH_LPC32XX && OF
804 Support for the LPC32XX high speed serial ports (up to 900kbps).
805 Those are UARTs completely different from the Standard UARTs on the
807 Choose M or Y here to build this driver.
809 config SERIAL_HS_LPC32XX_CONSOLE
810 bool "Enable LPC32XX high speed UART serial console"
811 depends on SERIAL_HS_LPC32XX=y
812 select SERIAL_CORE_CONSOLE
814 If you would like to be able to use one of the high speed serial
815 ports on the LPC32XX as the console, you can do so by answering
821 config SERIAL_CORE_CONSOLE
828 bool "Coldfire serial support"
832 This serial driver supports the Freescale Coldfire serial ports.
834 config SERIAL_MCF_BAUDRATE
835 int "Default baudrate for Coldfire serial ports"
836 depends on SERIAL_MCF
839 This setting lets you define what the default baudrate is for the
840 ColdFire serial ports. The usual default varies from board to board,
841 and this setting is a way of catering for that.
843 config SERIAL_MCF_CONSOLE
844 bool "Coldfire serial console support"
845 depends on SERIAL_MCF
846 select SERIAL_CORE_CONSOLE
848 Enable a ColdFire internal serial port to be the system console.
850 config SERIAL_PMACZILOG
851 tristate "Mac or PowerMac z85c30 ESCC support"
852 depends on (M68K && MAC) || PPC_PMAC
855 This driver supports the Zilog z85C30 serial ports found on
857 Say Y or M if you want to be able to these serial ports.
859 config SERIAL_PMACZILOG_TTYS
860 bool "Use ttySn device nodes for Zilog z85c30"
861 depends on SERIAL_PMACZILOG
863 The pmac_zilog driver for the z85C30 chip on many powermacs
864 historically used the device numbers for /dev/ttySn. The
865 8250 serial port driver also uses these numbers, which means
866 the two drivers being unable to coexist; you could not use
867 both z85C30 and 8250 type ports at the same time.
869 If this option is not selected, the pmac_zilog driver will
870 use the device numbers allocated for /dev/ttyPZn. This allows
871 the pmac_zilog and 8250 drivers to co-exist, but may cause
872 existing userspace setups to break. Programs that need to
873 access the built-in serial ports on powermacs will need to
874 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
876 If you enable this option, any z85c30 ports in the system will
877 be registered as ttyS0 onwards as in the past, and you will be
878 unable to use the 8250 module for PCMCIA or other 16C550-style
881 Say N unless you need the z85c30 ports on your (Power)Mac
882 to appear as /dev/ttySn.
884 config SERIAL_PMACZILOG_CONSOLE
885 bool "Console on Mac or PowerMac z85c30 serial port"
886 depends on SERIAL_PMACZILOG=y
887 select SERIAL_CORE_CONSOLE
889 If you would like to be able to use the z85c30 serial port
890 on your (Power)Mac as the console, you can do so by answering
894 tristate "CPM SCC/SMC serial port support"
895 depends on CPM2 || CPM1
898 This driver supports the SCC and SMC serial ports on Motorola
899 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
901 config SERIAL_CPM_CONSOLE
902 bool "Support for console on CPM SCC/SMC serial port"
903 depends on SERIAL_CPM=y
904 select SERIAL_CORE_CONSOLE
906 Say Y here if you wish to use a SCC or SMC CPM UART as the system
907 console (the system console is the device which receives all kernel
908 messages and warnings and which allows logins in single user mode).
910 Even if you say Y here, the currently visible framebuffer console
911 (/dev/tty0) will still be used as the system console by default, but
912 you can alter that using a kernel command line option such as
913 "console=ttyCPM0". (Try "man bootparam" or see the documentation of
914 your boot loader (lilo or loadlin) about how to pass options to the
915 kernel at boot time.)
917 config SERIAL_SGI_L1_CONSOLE
918 bool "SGI Altix L1 serial console support"
919 depends on IA64_GENERIC || IA64_SGI_SN2
921 select SERIAL_CORE_CONSOLE
923 If you have an SGI Altix and you would like to use the system
924 controller serial port as your console (you want this!),
925 say Y. Otherwise, say N.
928 tristate "Microchip PIC32 serial support"
929 depends on MACH_PIC32
932 If you have a PIC32, this driver supports the serial ports.
934 Say Y or M to use PIC32 serial ports, otherwise say N. Note that
935 to use a serial port as a console, this must be included in kernel and
938 config SERIAL_PIC32_CONSOLE
939 bool "PIC32 serial console support"
940 depends on SERIAL_PIC32
941 select SERIAL_CORE_CONSOLE
943 If you have a PIC32, this driver supports the putting a console on one
946 Say Y to use the PIC32 console, otherwise say N.
948 config SERIAL_MPC52xx
949 tristate "Freescale MPC52xx/MPC512x family PSC serial support"
950 depends on PPC_MPC52xx || PPC_MPC512x
953 This driver supports MPC52xx and MPC512x PSC serial ports. If you would
954 like to use them, you must answer Y or M to this option. Note that
955 for use as console, it must be included in kernel and not as a
958 config SERIAL_MPC52xx_CONSOLE
959 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
960 depends on SERIAL_MPC52xx=y
961 select SERIAL_CORE_CONSOLE
963 Select this options if you'd like to use one of the PSC serial port
964 of the Freescale MPC52xx family as a console.
966 config SERIAL_MPC52xx_CONSOLE_BAUD
967 int "Freescale MPC52xx/MPC512x family PSC serial port baud"
968 depends on SERIAL_MPC52xx_CONSOLE=y
971 Select the MPC52xx console baud rate.
972 This value is only used if the bootloader doesn't pass in the
976 tristate "IBM Multiport Serial Adapter"
977 depends on PCI && PPC_PSERIES
981 This driver is for a family of multiport serial adapters
982 including 2 port RVX, 2 port internal modem, 4 port internal
983 modem and a split 1 port RVX and 1 port internal modem.
985 This driver can also be built as a module. If so, the module
988 config SERIAL_M32R_SIO
994 Say Y here if you want to use the M32R serial controller.
996 config SERIAL_M32R_SIO_CONSOLE
997 bool "use SIO console"
998 depends on SERIAL_M32R_SIO=y
999 select SERIAL_CORE_CONSOLE
1001 Say Y here if you want to support a serial console.
1003 If you use an M3T-M32700UT or an OPSPUT platform,
1004 please say also y for SERIAL_M32R_PLDSIO.
1006 config SERIAL_M32R_PLDSIO
1007 bool "M32R SIO I/F on a PLD"
1008 depends on SERIAL_M32R_SIO=y && (PLAT_OPSPUT || PLAT_USRV || PLAT_M32700UT)
1011 Say Y here if you want to use the M32R serial controller
1012 on a PLD (Programmable Logic Device).
1014 If you use an M3T-M32700UT or an OPSPUT platform,
1018 bool "TMPTX39XX/49XX SIO support"
1019 depends on HAS_TXX9_SERIAL
1023 config HAS_TXX9_SERIAL
1026 config SERIAL_TXX9_NR_UARTS
1027 int "Maximum number of TMPTX39XX/49XX SIO ports"
1028 depends on SERIAL_TXX9
1031 config SERIAL_TXX9_CONSOLE
1032 bool "TMPTX39XX/49XX SIO Console support"
1033 depends on SERIAL_TXX9=y
1034 select SERIAL_CORE_CONSOLE
1036 config SERIAL_TXX9_STDSERIAL
1037 bool "TX39XX/49XX SIO act as standard serial"
1038 depends on !SERIAL_8250 && SERIAL_TXX9
1040 config SERIAL_VR41XX
1041 tristate "NEC VR4100 series Serial Interface Unit support"
1042 depends on CPU_VR41XX
1045 If you have a NEC VR4100 series processor and you want to use
1046 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU)
1047 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N.
1049 config SERIAL_VR41XX_CONSOLE
1050 bool "Enable NEC VR4100 series Serial Interface Unit console"
1051 depends on SERIAL_VR41XX=y
1052 select SERIAL_CORE_CONSOLE
1054 If you have a NEC VR4100 series processor and you want to use
1055 a console on a serial port, say Y. Otherwise, say N.
1058 tristate "Digi International NEO and Classic PCI Support"
1062 This is a driver for Digi International's Neo and Classic series
1063 of cards which provide multiple serial ports. You would need
1064 something like this to connect more than two modems to your Linux
1065 box, for instance in order to become a dial-in server. This driver
1066 supports PCI boards only.
1068 If you have a card like this, say Y here, otherwise say N.
1070 To compile this driver as a module, choose M here: the
1071 module will be called jsm.
1073 config SERIAL_SGI_IOC4
1074 tristate "SGI IOC4 controller serial support"
1075 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
1078 If you have an SGI Altix with an IOC4 based Base IO card
1079 and wish to use the serial ports on this card, say Y.
1082 config SERIAL_SGI_IOC3
1083 tristate "SGI Altix IOC3 serial support"
1084 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3
1087 If you have an SGI Altix with an IOC3 serial card,
1088 say Y or M. Otherwise, say N.
1091 tristate "MSM on-chip serial port support"
1092 depends on ARCH_QCOM
1095 config SERIAL_MSM_CONSOLE
1096 bool "MSM serial console support"
1097 depends on SERIAL_MSM=y
1098 select SERIAL_CORE_CONSOLE
1099 select SERIAL_EARLYCON
1101 config SERIAL_VT8500
1102 bool "VIA VT8500 on-chip serial port support"
1103 depends on ARCH_VT8500
1106 config SERIAL_VT8500_CONSOLE
1107 bool "VIA VT8500 serial console support"
1108 depends on SERIAL_VT8500=y
1109 select SERIAL_CORE_CONSOLE
1111 config SERIAL_ETRAXFS
1112 bool "ETRAX FS serial port support"
1113 depends on ETRAX_ARCH_V32 && OF
1115 select SERIAL_MCTRL_GPIO if GPIOLIB
1117 config SERIAL_ETRAXFS_CONSOLE
1118 bool "ETRAX FS serial console support"
1119 depends on SERIAL_ETRAXFS
1120 select SERIAL_CORE_CONSOLE
1123 tristate "NetX serial port support"
1124 depends on ARCH_NETX
1127 If you have a machine based on a Hilscher NetX SoC you
1128 can enable its onboard serial port by enabling this option.
1130 To compile this driver as a module, choose M here: the
1131 module will be called netx-serial.
1133 config SERIAL_NETX_CONSOLE
1134 bool "Console on NetX serial port"
1135 depends on SERIAL_NETX=y
1136 select SERIAL_CORE_CONSOLE
1138 If you have enabled the serial port on the Hilscher NetX SoC
1139 you can make it the console by answering Y to this option.
1142 tristate "OMAP serial port support"
1143 depends on ARCH_OMAP2PLUS
1146 If you have a machine based on an Texas Instruments OMAP CPU you
1147 can enable its onboard serial ports by enabling this option.
1149 By enabling this option you take advantage of dma feature available
1150 with the omap-serial driver. DMA support can be enabled from platform
1153 config SERIAL_OMAP_CONSOLE
1154 bool "Console on OMAP serial port"
1155 depends on SERIAL_OMAP=y
1156 select SERIAL_CORE_CONSOLE
1158 Select this option if you would like to use omap serial port as
1161 Even if you say Y here, the currently visible virtual console
1162 (/dev/tty0) will still be used as the system console by default, but
1163 you can alter that using a kernel command line option such as
1164 "console=ttyOx". (Try "man bootparam" or see the documentation of
1165 your boot loader about how to pass options to the kernel at
1168 config SERIAL_LANTIQ
1169 bool "Lantiq serial driver"
1172 select SERIAL_CORE_CONSOLE
1173 select SERIAL_EARLYCON
1175 Support for console and UART on Lantiq SoCs.
1178 tristate "Freescale QUICC Engine serial port support"
1179 depends on QUICC_ENGINE
1184 This driver supports the QE serial ports on Freescale embedded
1185 PowerPC that contain a QUICC Engine.
1187 config SERIAL_SCCNXP
1188 tristate "SCCNXP serial port support"
1191 This selects support for an advanced UART from NXP (Philips).
1192 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1193 SC28L202, SCC68681 and SCC68692.
1195 config SERIAL_SCCNXP_CONSOLE
1196 bool "Console on SCCNXP serial port"
1197 depends on SERIAL_SCCNXP=y
1198 select SERIAL_CORE_CONSOLE
1200 Support for console on SCCNXP serial ports.
1202 config SERIAL_SC16IS7XX_CORE
1205 config SERIAL_SC16IS7XX
1206 tristate "SC16IS7xx serial support"
1208 depends on (SPI_MASTER && !I2C) || I2C
1210 This selects support for SC16IS7xx serial ports.
1211 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752,
1212 SC16IS760 and SC16IS762. Select supported buses using options below.
1214 config SERIAL_SC16IS7XX_I2C
1215 bool "SC16IS7xx for I2C interface"
1216 depends on SERIAL_SC16IS7XX
1218 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1219 select REGMAP_I2C if I2C
1222 Enable SC16IS7xx driver on I2C bus,
1223 If required say y, and say n to i2c if not required,
1224 Enabled by default to support oldconfig.
1225 You must select at least one bus for the driver to be built.
1227 config SERIAL_SC16IS7XX_SPI
1228 bool "SC16IS7xx for spi interface"
1229 depends on SERIAL_SC16IS7XX
1230 depends on SPI_MASTER
1231 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX
1232 select REGMAP_SPI if SPI_MASTER
1234 Enable SC16IS7xx driver on SPI bus,
1235 If required say y, and say n to spi if not required,
1236 This is additional support to exsisting driver.
1237 You must select at least one bus for the driver to be built.
1239 config SERIAL_BFIN_SPORT
1240 tristate "Blackfin SPORT emulate UART"
1244 Enable SPORT emulate UART on Blackfin series.
1246 To compile this driver as a module, choose M here: the
1247 module will be called bfin_sport_uart.
1249 config SERIAL_BFIN_SPORT_CONSOLE
1250 bool "Console on Blackfin sport emulated uart"
1251 depends on SERIAL_BFIN_SPORT=y
1252 select SERIAL_CORE_CONSOLE
1254 config SERIAL_BFIN_SPORT0_UART
1255 bool "Enable UART over SPORT0"
1256 depends on SERIAL_BFIN_SPORT && !(BF542 || BF544)
1258 Enable UART over SPORT0
1260 config SERIAL_BFIN_SPORT0_UART_CTSRTS
1261 bool "Enable UART over SPORT0 hardware flow control"
1262 depends on SERIAL_BFIN_SPORT0_UART
1264 Enable hardware flow control in the driver.
1266 config SERIAL_BFIN_SPORT1_UART
1267 bool "Enable UART over SPORT1"
1268 depends on SERIAL_BFIN_SPORT
1270 Enable UART over SPORT1
1272 config SERIAL_BFIN_SPORT1_UART_CTSRTS
1273 bool "Enable UART over SPORT1 hardware flow control"
1274 depends on SERIAL_BFIN_SPORT1_UART
1276 Enable hardware flow control in the driver.
1278 config SERIAL_BFIN_SPORT2_UART
1279 bool "Enable UART over SPORT2"
1280 depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1282 Enable UART over SPORT2
1284 config SERIAL_BFIN_SPORT2_UART_CTSRTS
1285 bool "Enable UART over SPORT2 hardware flow control"
1286 depends on SERIAL_BFIN_SPORT2_UART
1288 Enable hardware flow control in the driver.
1290 config SERIAL_BFIN_SPORT3_UART
1291 bool "Enable UART over SPORT3"
1292 depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
1294 Enable UART over SPORT3
1296 config SERIAL_BFIN_SPORT3_UART_CTSRTS
1297 bool "Enable UART over SPORT3 hardware flow control"
1298 depends on SERIAL_BFIN_SPORT3_UART
1300 Enable hardware flow control in the driver.
1302 config SERIAL_TIMBERDALE
1303 tristate "Support for timberdale UART"
1305 depends on X86_32 || COMPILE_TEST
1307 Add support for UART controller on timberdale.
1309 config SERIAL_BCM63XX
1310 tristate "Broadcom BCM63xx/BCM33xx UART support"
1312 depends on MIPS || ARM || COMPILE_TEST
1314 This enables the driver for the onchip UART core found on
1315 the following chipsets:
1317 BCM33xx (cable modem)
1318 BCM63xx/BCM63xxx (DSL)
1320 BCM7xxx (STB) - DOCSIS console
1322 config SERIAL_BCM63XX_CONSOLE
1323 bool "Console on BCM63xx serial port"
1324 depends on SERIAL_BCM63XX=y
1325 select SERIAL_CORE_CONSOLE
1326 select SERIAL_EARLYCON
1328 If you have enabled the serial port on the BCM63xx CPU
1329 you can make it the console by answering Y to this option.
1331 config SERIAL_GRLIB_GAISLER_APBUART
1332 tristate "GRLIB APBUART serial support"
1333 depends on OF && SPARC
1336 Add support for the GRLIB APBUART serial port.
1338 config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1339 bool "Console on GRLIB APBUART serial port"
1340 depends on SERIAL_GRLIB_GAISLER_APBUART=y
1341 select SERIAL_CORE_CONSOLE
1343 Support for running a console on the GRLIB APBUART
1345 config SERIAL_ALTERA_JTAGUART
1346 tristate "Altera JTAG UART support"
1349 This driver supports the Altera JTAG UART port.
1351 config SERIAL_ALTERA_JTAGUART_CONSOLE
1352 bool "Altera JTAG UART console support"
1353 depends on SERIAL_ALTERA_JTAGUART=y
1354 select SERIAL_CORE_CONSOLE
1355 select SERIAL_EARLYCON
1357 Enable a Altera JTAG UART port to be the system console.
1359 config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1360 bool "Bypass output when no connection"
1361 depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1362 select SERIAL_CORE_CONSOLE
1364 Bypass console output and keep going even if there is no
1365 JTAG terminal connection with the host.
1367 config SERIAL_ALTERA_UART
1368 tristate "Altera UART support"
1371 This driver supports the Altera softcore UART port.
1373 config SERIAL_ALTERA_UART_MAXPORTS
1374 int "Maximum number of Altera UART ports"
1375 depends on SERIAL_ALTERA_UART
1378 This setting lets you define the maximum number of the Altera
1379 UART ports. The usual default varies from board to board, and
1380 this setting is a way of catering for that.
1382 config SERIAL_ALTERA_UART_BAUDRATE
1383 int "Default baudrate for Altera UART ports"
1384 depends on SERIAL_ALTERA_UART
1387 This setting lets you define what the default baudrate is for the
1388 Altera UART ports. The usual default varies from board to board,
1389 and this setting is a way of catering for that.
1391 config SERIAL_ALTERA_UART_CONSOLE
1392 bool "Altera UART console support"
1393 depends on SERIAL_ALTERA_UART=y
1394 select SERIAL_CORE_CONSOLE
1395 select SERIAL_EARLYCON
1397 Enable a Altera UART port to be the system console.
1399 config SERIAL_IFX6X60
1400 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
1401 depends on GPIOLIB || COMPILE_TEST
1402 depends on SPI && HAS_DMA
1404 Support for the IFX6x60 modem devices on Intel MID platforms.
1406 config SERIAL_PCH_UART
1407 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1408 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
1411 This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1412 which is an IOH(Input/Output Hub) for x86 embedded processor.
1413 Enabling PCH_DMA, this PCH UART works as DMA mode.
1415 This driver also can be used for LAPIS Semiconductor IOH(Input/
1416 Output Hub), ML7213, ML7223 and ML7831.
1417 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1418 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1419 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1420 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1422 config SERIAL_PCH_UART_CONSOLE
1423 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1424 depends on SERIAL_PCH_UART=y
1425 select SERIAL_CORE_CONSOLE
1427 Say Y here if you wish to use the PCH UART as the system console
1428 (the system console is the device which receives all kernel messages and
1429 warnings and which allows logins in single user mode).
1431 config SERIAL_MXS_AUART
1432 tristate "MXS AUART support"
1434 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1436 select SERIAL_MCTRL_GPIO if GPIOLIB
1438 This driver supports the MXS and Alphascale ASM9260 Application
1441 config SERIAL_MXS_AUART_CONSOLE
1442 bool "MXS AUART console support"
1443 depends on SERIAL_MXS_AUART=y
1444 select SERIAL_CORE_CONSOLE
1446 Enable a MXS AUART port to be the system console.
1448 config SERIAL_XILINX_PS_UART
1449 tristate "Cadence (Xilinx Zynq) UART support"
1453 This driver supports the Cadence UART. It is found e.g. in Xilinx
1456 config SERIAL_XILINX_PS_UART_CONSOLE
1457 bool "Cadence UART console support"
1458 depends on SERIAL_XILINX_PS_UART=y
1459 select SERIAL_CORE_CONSOLE
1460 select SERIAL_EARLYCON
1462 Enable a Cadence UART port to be the system console.
1464 config SERIAL_AR933X
1465 tristate "AR933X serial port support"
1466 depends on HAVE_CLK && SOC_AR933X
1469 If you have an Atheros AR933X SOC based board and want to use the
1470 built-in UART of the SoC, say Y to this option.
1472 To compile this driver as a module, choose M here: the
1473 module will be called ar933x_uart.
1475 config SERIAL_AR933X_CONSOLE
1476 bool "Console on AR933X serial port"
1477 depends on SERIAL_AR933X=y
1478 select SERIAL_CORE_CONSOLE
1480 Enable a built-in UART port of the AR933X to be the system console.
1482 config SERIAL_AR933X_NR_UARTS
1483 int "Maximum number of AR933X serial ports"
1484 depends on SERIAL_AR933X
1487 Set this to the number of serial ports you want the driver
1490 config SERIAL_EFM32_UART
1491 tristate "EFM32 UART/USART port"
1492 depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1495 This driver support the USART and UART ports on
1496 Energy Micro's efm32 SoCs.
1498 config SERIAL_MPS2_UART_CONSOLE
1499 bool "MPS2 UART console support"
1500 depends on SERIAL_MPS2_UART
1501 select SERIAL_CORE_CONSOLE
1502 select SERIAL_EARLYCON
1504 config SERIAL_MPS2_UART
1505 bool "MPS2 UART port"
1506 depends on ARCH_MPS2 || COMPILE_TEST
1509 This driver support the UART ports on ARM MPS2.
1511 config SERIAL_EFM32_UART_CONSOLE
1512 bool "EFM32 UART/USART console support"
1513 depends on SERIAL_EFM32_UART=y
1514 select SERIAL_CORE_CONSOLE
1516 config SERIAL_TILEGX
1517 tristate "TILE-Gx on-chip serial port support"
1519 select TILE_GXIO_UART
1522 This device provides access to the on-chip UARTs on the TILE-Gx
1526 tristate "ARC UART driver support"
1529 Driver for on-chip UART for ARC(Synopsys) for the legacy
1530 FPGA Boards (ML50x/ARCAngel4)
1532 config SERIAL_ARC_CONSOLE
1533 bool "Console on ARC UART"
1534 depends on SERIAL_ARC=y
1535 select SERIAL_CORE_CONSOLE
1536 select SERIAL_EARLYCON
1538 Enable system Console on ARC UART
1540 config SERIAL_ARC_NR_PORTS
1541 int "Number of ARC UART ports"
1542 depends on SERIAL_ARC
1546 Set this to the number of serial ports you want the driver
1550 tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1554 This driver supports the Comtrol RocketPort EXPRESS and
1555 RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1556 These adapters use a "RocketPort 2" ASIC that is not compatible
1557 with the original RocketPort driver (CONFIG_ROCKETPORT).
1559 To compile this driver as a module, choose M here: the
1560 module will be called rp2.
1562 If you want to compile this driver into the kernel, say Y here. If
1563 you don't have a suitable RocketPort card installed, say N.
1565 config SERIAL_RP2_NR_UARTS
1566 int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1567 depends on SERIAL_RP2
1570 If multiple cards are present, the default limit of 32 ports may
1571 need to be increased.
1573 config SERIAL_FSL_LPUART
1574 tristate "Freescale lpuart serial port support"
1578 Support for the on-chip lpuart on some Freescale SOCs.
1580 config SERIAL_FSL_LPUART_CONSOLE
1581 bool "Console on Freescale lpuart serial port"
1582 depends on SERIAL_FSL_LPUART=y
1583 select SERIAL_CORE_CONSOLE
1584 select SERIAL_EARLYCON
1586 If you have enabled the lpuart serial port on the Freescale SoCs,
1587 you can make it the console by answering Y to this option.
1589 config SERIAL_CONEXANT_DIGICOLOR
1590 tristate "Conexant Digicolor CX92xxx USART serial port support"
1594 Support for the on-chip USART on Conexant Digicolor SoCs.
1596 config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1597 bool "Console on Conexant Digicolor serial port"
1598 depends on SERIAL_CONEXANT_DIGICOLOR=y
1599 select SERIAL_CORE_CONSOLE
1601 If you have enabled the USART serial port on Conexant Digicolor
1602 SoCs, you can make it the console by answering Y to this option.
1604 config SERIAL_ST_ASC
1605 tristate "ST ASC serial port support"
1607 depends on ARM || COMPILE_TEST
1609 This driver is for the on-chip Asychronous Serial Controller on
1610 STMicroelectronics STi SoCs.
1611 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1612 It support all industry standard baud rates.
1616 config SERIAL_ST_ASC_CONSOLE
1617 bool "Support for console on ST ASC"
1618 depends on SERIAL_ST_ASC=y
1619 select SERIAL_CORE_CONSOLE
1621 config SERIAL_MEN_Z135
1622 tristate "MEN 16z135 Support"
1626 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1629 This driver can also be build as a module. If so, the module will be called
1633 tristate "Support for Spreadtrum serial"
1634 depends on ARCH_SPRD
1637 This enables the driver for the Spreadtrum's serial.
1639 config SERIAL_SPRD_CONSOLE
1640 bool "Spreadtrum UART console support"
1641 depends on SERIAL_SPRD=y
1642 select SERIAL_CORE_CONSOLE
1643 select SERIAL_EARLYCON
1645 Support for early debug console using Spreadtrum's serial. This enables
1646 the console before standard serial driver is probed. This is enabled
1647 with "earlycon" on the kernel command line. The console is
1648 enabled when early_param is processed.
1651 tristate "STMicroelectronics STM32 serial port support"
1654 depends on ARCH_STM32 || COMPILE_TEST
1656 This driver is for the on-chip Serial Controller on
1657 STMicroelectronics STM32 MCUs.
1658 USART supports Rx & Tx functionality.
1659 It support all industry standard baud rates.
1663 config SERIAL_STM32_CONSOLE
1664 bool "Support for console on STM32"
1665 depends on SERIAL_STM32=y
1666 select SERIAL_CORE_CONSOLE
1668 config SERIAL_MVEBU_UART
1669 bool "Marvell EBU serial port support"
1670 depends on ARCH_MVEBU || COMPILE_TEST
1673 This driver is for Marvell EBU SoC's UART. If you have a machine
1674 based on the Armada-3700 SoC and wish to use the on-board serial
1679 config SERIAL_MVEBU_CONSOLE
1680 bool "Console on Marvell EBU serial port"
1681 depends on SERIAL_MVEBU_UART
1682 select SERIAL_CORE_CONSOLE
1683 select SERIAL_EARLYCON
1686 Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1687 (the system console is the device which receives all kernel messages
1688 and warnings and which allows logins in single user mode)
1693 config SERIAL_MCTRL_GPIO