Kconfig - OpenGrok cross reference for /linux-5.10/drivers/tty/serial/Kconfig

1 # SPDX-License-Identifier: GPL-2.0
7 	depends on HAS_IOMEM
11 	depends on SERIAL_CORE
19 comment "Non-8250 serial port support"
23 	depends on ARM_AMBA
33 	bool "Support for console on AMBA serial port"
34 	depends on SERIAL_AMBA_PL010=y
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
42 	  (/dev/tty0) will still be used as the system console by default, but
50 	depends on ARM_AMBA
60 	bool "Support for console on AMBA serial port"
61 	depends on SERIAL_AMBA_PL011=y
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
70 	  (/dev/tty0) will still be used as the system console by default, but
78 	depends on ARM64 || ARM
85 	  with "earlycon=smh" on the kernel command line. The console is
89 	bool "Early console using RISC-V SBI"
90 	depends on RISCV_SBI_V01
95 	  Support for early debug console using RISC-V SBI. This enables
97 	  with "earlycon=sbi" on the kernel command line. The console is
101 	tristate "BCM1xxx on-chip DUART serial support"
102 	depends on SIBYTE_SB1xxx_SOC=y
107 	  the BCM1250 and derived System-On-a-Chip (SOC) devices.  Note that
109 	  is implemented.  Depending on the SOC configuration there may be
113 	  the module will be called sb1250-duart.
116 	bool "Support for console on a BCM1xxx DUART serial port"
117 	depends on SERIAL_SB1250_DUART=y
122 	  system console (the system console is the device which receives all
129 	bool "AT91 on-chip serial port support"
130 	depends on ARCH_AT91 || COMPILE_TEST
135 	  This enables the driver for the on-chip UARTs of the Atmel
139 	bool "Support for console on AT91 serial port"
140 	depends on SERIAL_ATMEL=y
143 	  Say Y here if you wish to use an on-chip UART on a Atmel
144 	  AT91 processor as the system console (the system
149 	bool "Support DMA transfers on AT91 serial port"
150 	depends on SERIAL_ATMEL
165 	depends on SERIAL_ATMEL=y
182 	depends on KGDB_SERIAL_CONSOLE
201 	depends on ARCH_MESON
204 	  This enables the driver for the on-chip UARTs of the Amlogic
208 	bool "Support for console on meson"
209 	depends on SERIAL_MESON=y
214 	  system console (the system console is the device which
220 	depends on ARCH_CLPS711X || COMPILE_TEST
224 	  This enables the driver for the on-chip UARTs of the Cirrus
228 	bool "Support for console on CLPS711X serial port"
229 	depends on SERIAL_CLPS711X=y
233 	  (/dev/tty0) will still be used as the system console by default, but
239 	depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
242 	  Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
244 	  provide all of these ports, depending on how the serial port
249 	depends on SERIAL_SAMSUNG
256 	depends on SERIAL_SAMSUNG
264 	bool "Support for console on Samsung SoC serial port"
265 	depends on SERIAL_SAMSUNG=y
269 	  Allow selection of the S3C24XX on-board serial ports for use as
273 	  (/dev/tty0) will still be used as the system console by default, but
281 	depends on ARCH_SIRF
284 	  Support for the on-chip UART on the CSR SiRFprimaII series,
286 	  provide all of these ports, depending on how the serial port
290 	bool "Support for console on SiRF SoC serial port"
291 	depends on SERIAL_SIRFSOC=y
295 	  (/dev/tty0) will still be used as the system console by default, but
303 	depends on ARCH_TEGRA && TEGRA20_APB_DMA
306 	  Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
308 	  provide all of these ports, depending on how the serial port
314 	depends on ARCH_TEGRA && TEGRA_HSP_MBOX
317 	  Support for the mailbox-based TCU (Tegra Combined UART) serial port.
322 	bool "Support for console on a Tegra TCU serial port"
323 	depends on SERIAL_TEGRA_TCU=y
328 	  system console (the system console is the device which receives all
336 	depends on SPI
339 	  MAX3100 chip support
343 	depends on SPI_MASTER
350 	  that can be controlled through I2C or high-speed SPI.
356 	depends on MACH_DECSTATION && 32BIT
360 	  DZ11-family serial controllers for DECstations and VAXstations,
364 	bool "Support console on DECstation DZ serial driver"
365 	depends on SERIAL_DZ=y
370 	  system console (the system console is the device which receives all
374 	  Note that the firmware uses ttyS3 as the serial console on
381 	depends on MACH_DECSTATION
394 	bool "Support for console on a DECstation Z85C30 serial port"
395 	depends on SERIAL_ZS=y
400 	  system console (the system console is the device which receives all
404 	  Note that the firmware uses ttyS1 as the serial console on the
405 	  Maxine and ttyS3 on the others using this driver.
411 	depends on FOOTBRIDGE
414 	  If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
419 	bool "Console on DC21285 serial port"
420 	depends on SERIAL_21285=y
423 	  If you have enabled the serial port on the 21285 footbridge you can
427 	  (/dev/tty0) will still be used as the system console by default, but
435 	depends on ARCH_PXA || ARCH_MMP
440 	  If you have a machine based on an Intel XScale PXA2xx CPU you
448 	depends on !SERIAL_8250
451 	bool "Console on PXA serial port (DEPRECATED)"
452 	depends on SERIAL_PXA
456 	  If you have enabled the serial port on the Intel XScale PXA
460 	  (/dev/tty0) will still be used as the system console by default, but
471 	depends on ARCH_SA1100
475 	  If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
481 	bool "Console on SA1100 serial port"
482 	depends on SERIAL_SA1100
485 	  If you have enabled the serial port on the SA1100/SA1110 StrongARM
489 	  (/dev/tty0) will still be used as the system console by default, but
497 	depends on ARCH_MXC || COMPILE_TEST
502 	  If you have a machine based on a Motorola IMX CPU you
506 	tristate "Console on IMX serial port"
507 	depends on SERIAL_IMX
510 	  If you have enabled the serial port on the Freescale IMX
514 	  (/dev/tty0) will still be used as the system console by default, but
520 	bool "Earlycon on IMX serial port"
521 	depends on ARCH_MXC || COMPILE_TEST
522 	depends on OF
527 	  If you have enabled the earlycon on the Freescale IMX
532 	depends on HAS_IOMEM
541 	bool "Support for console on Xilinx uartlite serial port"
542 	depends on SERIAL_UARTLITE=y
546 	  Say Y here if you wish to use a Xilinx uartlite as the system
547 	  console (the system console is the device which receives all kernel
552 	depends on SERIAL_UARTLITE
556 	  Set this to the number of uartlites in your system, or the number
561 	depends on SPARC
568 	depends on SPARC
570 	  This driver supports the Zilog8530 serial ports found on many Sparc
574 	bool "Console on Sun Zilog8530 serial port"
575 	depends on SERIAL_SUNZILOG=y
578 	  on your Sparc system as the console, you can do so by answering
583 	depends on SPARC && PCI
586 	  mouse on (PCI) UltraSPARC systems.  Say Y or M if you want to be able
590 	bool "Console on Sun SU serial port"
591 	depends on SERIAL_SUNSU=y
594 	  on your Sparc system as the console, you can do so by answering
599 	depends on GSC
611 	    2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
612 	    3. Add device ttyB0 to /etc/securetty (if you want to log on as
613 		 root on this console.)
617 	bool "Support for console on serial MUX"
618 	depends on SERIAL_MUX=y
624 	depends on PARISC && !SERIAL_MUX && VT
627 	  used as the system console.  This is useful for machines in
632 	    2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
633 	    3. Add device ttyB0 to /etc/securetty (if you want to log on as
634 		 root on this console.)
639 	depends on SPARC && PCI
641 	  This driver supports the Siemens SAB82532 DUSCC serial ports on newer
646 	bool "Console on Sun Siemens SAB82532 serial port"
647 	depends on SERIAL_SUNSAB=y
650 	  on your Sparc system as the console, you can do so by answering
655 	depends on SPARC64
657 	  This driver supports the console device found on SUN4V Sparc
662 	depends on SGI_HAS_ZILOG
665 	  This driver supports the Zilog8530 serial ports found on SGI
669 	bool "Console on SGI Zilog8530 serial port"
670 	depends on SERIAL_IP22_ZILOG=y
675 	depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
683 	depends on SERIAL_SH_SCI
690 	bool "Support for console on SuperH SCI(F)" if EXPERT
691 	depends on SERIAL_SH_SCI=y
696 	bool "Support for early console on SuperH SCI(F)" if EXPERT
697 	depends on SERIAL_SH_SCI=y
704 	depends on SERIAL_SH_SCI && DMA_ENGINE
709 	depends on SOC_PNX833X
712 	  If you have a MIPS-based Philips SoC such as PNX8330 and you want
717 	depends on SERIAL_PNX8XXX
720 	  If you have a MIPS-based Philips SoC such as PNX8330 and you want
725 	depends on ARCH_LPC32XX || COMPILE_TEST
726 	depends on OF
730 	  Those are UARTs completely different from the Standard UARTs on the
736 	depends on SERIAL_HS_LPC32XX=y
740 	  ports on the LPC32XX as the console, you can do so by answering
754 	depends on COLDFIRE
761 	depends on SERIAL_MCF
770 	depends on SERIAL_MCF
773 	  Enable a ColdFire internal serial port to be the system console.
777 	depends on (M68K && MAC) || PPC_PMAC
780 	  This driver supports the Zilog z85C30 serial ports found on
786 	depends on SERIAL_PMACZILOG
788 	  The pmac_zilog driver for the z85C30 chip on many powermacs
796 	  the pmac_zilog and 8250 drivers to co-exist, but may cause
798 	  access the built-in serial ports on powermacs will need to
801 	  If you enable this option, any z85c30 ports in the system will
803 	  unable to use the 8250 module for PCMCIA or other 16C550-style
806 	  Say N unless you need the z85c30 ports on your (Power)Mac
810 	bool "Console on Mac or PowerMac z85c30 serial port"
811 	depends on SERIAL_PMACZILOG=y
815 	  on your (Power)Mac as the console, you can do so by answering
820 	depends on CPM2 || CPM1
823 	  This driver supports the SCC and SMC serial ports on Motorola
827 	bool "Support for console on CPM SCC/SMC serial port"
828 	depends on SERIAL_CPM=y
831 	  Say Y here if you wish to use a SCC or SMC CPM UART as the system
832 	  console (the system console is the device which receives all kernel
836 	  (/dev/tty0) will still be used as the system console by default, but
844 	depends on MACH_PIC32
855 	depends on SERIAL_PIC32
858 	  If you have a PIC32, this driver supports the putting a console on one
865 	depends on PPC_MPC52xx || PPC_MPC512x
874 	bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
875 	depends on SERIAL_MPC52xx=y
883 	depends on SERIAL_MPC52xx_CONSOLE=y
892 	depends on PCI && PPC_PSERIES
905 	depends on HAS_TXX9_SERIAL
914 	depends on SERIAL_TXX9
919 	depends on SERIAL_TXX9=y
924 	depends on !SERIAL_8250 && SERIAL_TXX9
928 	depends on CPU_VR41XX
937 	depends on SERIAL_VR41XX=y
941 	  a console on a serial port, say Y.  Otherwise, say N.
945 	depends on PCI
951 	  box, for instance in order to become a dial-in server. This driver
960 	tristate "MSM on-chip serial port support"
961 	depends on ARCH_QCOM
966 	depends on SERIAL_MSM=y
971 	tristate "QCOM on-chip GENI based serial port support"
972 	depends on ARCH_QCOM || COMPILE_TEST
973 	depends on QCOM_GENI_SE
978 	depends on SERIAL_QCOM_GENI
986 	bool "VIA VT8500 on-chip serial port support"
987 	depends on ARCH_VT8500
992 	depends on SERIAL_VT8500=y
997 	depends on ARCH_OMAP2PLUS
1000 	  If you have a machine based on an Texas Instruments OMAP CPU you
1004 	  with the omap-serial driver. DMA support can be enabled from platform
1008 	bool "Console on OMAP serial port"
1009 	depends on SERIAL_OMAP=y
1016 	  (/dev/tty0) will still be used as the system console by default, but
1024 	depends on OF
1028 	  contains a SiFive UART IP block.  This type of UART is present on
1032 	bool "Console on SiFive UART"
1033 	depends on SERIAL_SIFIVE=y
1038 	  system console.
1041 	  (/dev/tty0) will still be used as the system console by default, but
1049 	depends on (LANTIQ || X86) || COMPILE_TEST
1052 	  Support for UART on Lantiq and Intel SoCs.
1057 	bool "Console on Lantiq UART"
1058 	depends on SERIAL_LANTIQ=y
1063 	  system console.
1067 	depends on QUICC_ENGINE
1071 	  This driver supports the QE serial ports on Freescale embedded
1083 	bool "Console on SCCNXP serial port"
1084 	depends on SERIAL_SCCNXP=y
1087 	  Support for console on SCCNXP serial ports.
1095 	depends on (SPI_MASTER && !I2C) || I2C
1103 	depends on SERIAL_SC16IS7XX
1104 	depends on I2C
1109 	  Enable SC16IS7xx driver on I2C bus,
1116 	depends on SERIAL_SC16IS7XX
1117 	depends on SPI_MASTER
1121 	  Enable SC16IS7xx driver on SPI bus,
1129 	depends on X86_32 || COMPILE_TEST
1131 	Add support for UART controller on timberdale.
1136 	depends on MIPS || ARM || COMPILE_TEST
1138 	  This enables the driver for the onchip UART core found on
1144 	    BCM7xxx (STB) - DOCSIS console
1147 	bool "Console on BCM63xx serial port"
1148 	depends on SERIAL_BCM63XX=y
1152 	  If you have enabled the serial port on the BCM63xx CPU
1157 	depends on OF && SPARC
1163 	bool "Console on GRLIB APBUART serial port"
1164 	depends on SERIAL_GRLIB_GAISLER_APBUART=y
1167 	Support for running a console on the GRLIB APBUART
1177 	depends on SERIAL_ALTERA_JTAGUART=y
1181 	  Enable a Altera JTAG UART port to be the system console.
1185 	depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1199 	depends on SERIAL_ALTERA_UART
1208 	depends on SERIAL_ALTERA_UART
1217 	depends on SERIAL_ALTERA_UART=y
1221 	  Enable a Altera UART port to be the system console.
1225 	depends on GPIOLIB || COMPILE_TEST
1226 	depends on SPI && HAS_DMA
1228 	  Support for the IFX6x60 modem devices on Intel MID platforms.
1232 	depends on PCI && (X86_32 || MIPS ||  COMPILE_TEST)
1241 	  ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1243 	  ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1247 	bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1248 	depends on SERIAL_PCH_UART=y
1251 	  Say Y here if you wish to use the PCH UART as the system console
1252 	  (the system  console is the device which receives all kernel messages and
1257 	depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1266 	depends on SERIAL_MXS_AUART=y
1269 	  Enable a MXS AUART port to be the system console.
1273 	depends on OF
1281 	depends on SERIAL_XILINX_PS_UART=y
1285 	  Enable a Cadence UART port to be the system console.
1289 	depends on HAVE_CLK && ATH79
1294 	  built-in UART of the SoC, say Y to this option.
1300 	bool "Console on AR933X serial port"
1301 	depends on SERIAL_AR933X=y
1304 	  Enable a built-in UART port of the AR933X to be the system console.
1308 	depends on SERIAL_AR933X
1316 	depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
1319 	  This driver support the USART and UART ports on
1324 	depends on SERIAL_MPS2_UART
1330 	depends on ARCH_MPS2 || COMPILE_TEST
1333 	  This driver support the UART ports on ARM MPS2.
1337 	depends on SERIAL_EFM32_UART=y
1344 	  Driver for on-chip UART for ARC(Synopsys) for the legacy
1348 	bool "Console on ARC UART"
1349 	depends on SERIAL_ARC=y
1353 	  Enable system Console on ARC UART
1357 	depends on SERIAL_ARC
1366 	depends on PCI
1382 	depends on SERIAL_RP2
1390 	depends on HAS_DMA
1393 	  Support for the on-chip lpuart on some Freescale SOCs.
1396 	bool "Console on Freescale lpuart serial port"
1397 	depends on SERIAL_FSL_LPUART=y
1401 	  If you have enabled the lpuart serial port on the Freescale SoCs,
1406 	depends on PRINTK
1409 	  Support for the on-chip LINFlexD UART on some Freescale SOCs.
1412 	bool "Console on Freescale LINFlexD UART serial port"
1413 	depends on SERIAL_FSL_LINFLEXUART=y
1417 	  If you have enabled the LINFlexD UART serial port on the Freescale
1422 	depends on OF
1425 	  Support for the on-chip USART on Conexant Digicolor SoCs.
1428 	bool "Console on Conexant Digicolor serial port"
1429 	depends on SERIAL_CONEXANT_DIGICOLOR=y
1432 	  If you have enabled the USART serial port on Conexant Digicolor
1438 	depends on ARM || COMPILE_TEST
1440 	  This driver is for the on-chip Asychronous Serial Controller on
1448 	bool "Support for console on ST ASC"
1449 	depends on SERIAL_ST_ASC=y
1455 	depends on MCB
1457 	  Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1458 	  on a MCB carrier.
1466 	depends on COMMON_CLK
1472 	depends on SERIAL_SPRD=y
1478 	  with "earlycon" on the kernel command line. The console is
1484 	depends on ARCH_STM32 || COMPILE_TEST
1487 	  This driver is for the on-chip Serial Controller on
1495 	bool "Support for console on STM32"
1496 	depends on SERIAL_STM32=y
1501 	depends on ARCH_MVEBU || COMPILE_TEST
1505 	  based on the Armada-3700 SoC and wish to use the on-board serial
1511 	bool "Console on Marvell EBU serial port"
1512 	depends on SERIAL_MVEBU_UART
1517 	  Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1518 	  (the system console is the device which receives all kernel messages
1524 	depends on ARCH_ACTIONS || COMPILE_TEST
1528 	  Say 'Y' here if you wish to use the on-board serial port.
1532 	bool "Console on Actions Semi Owl serial port"
1533 	depends on SERIAL_OWL=y
1539 	  as the system console.
1543 	depends on ARCH_RDA || COMPILE_TEST
1547 	  Say 'Y' here if you wish to use the on-board serial port.
1551 	bool "Console on RDA Micro serial port"
1552 	depends on SERIAL_RDA=y
1557 	  Say 'Y' here if you wish to use the RDA8810PL UART as the system
1562 	depends on ARCH_MILBEAUT || (COMPILE_TEST && OF)
1569 	int "Maximum number of CSIO/UART ports (1-8)"
1571 	depends on SERIAL_MILBEAUT_USIO
1575 	bool "Support for console on MILBEAUT USIO/UART serial port"
1576 	depends on SERIAL_MILBEAUT_USIO=y
1582 	  SoCs as the system console (the system console is the device which