1# SPDX-License-Identifier: GPL-2.0 2# 3# Serial device configuration 4# 5 6menu "Serial drivers" 7 depends on HAS_IOMEM 8 9config SERIAL_EARLYCON 10 bool 11 depends on SERIAL_CORE 12 help 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. 16 17source "drivers/tty/serial/8250/Kconfig" 18 19comment "Non-8250 serial port support" 20 21config SERIAL_AMBA_PL010 22 tristate "ARM AMBA PL010 serial port support" 23 depends on ARM_AMBA || COMPILE_TEST 24 select SERIAL_CORE 25 help 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. 29 30 If unsure, say N. 31 32config 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 36 help 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). 40 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 46 kernel at boot time.) 47 48config SERIAL_AMBA_PL011 49 tristate "ARM AMBA PL011 serial port support" 50 depends on ARM_AMBA 51 select SERIAL_CORE 52 help 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 55 here. 56 57 If unsure, say N. 58 59config 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 64 help 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). 68 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 74 kernel at boot time.) 75 76config SERIAL_EARLYCON_SEMIHOST 77 bool "Early console using Arm compatible semihosting" 78 depends on ARM64 || ARM || RISCV 79 select SERIAL_CORE 80 select SERIAL_CORE_CONSOLE 81 select SERIAL_EARLYCON 82 help 83 Support for early debug console using Arm compatible semihosting. 84 This enables the console before standard serial driver is probed. 85 This is enabled with "earlycon=smh" on the kernel command line. 86 The console is enabled when early_param is processed. 87 88config SERIAL_EARLYCON_RISCV_SBI 89 bool "Early console using RISC-V SBI" 90 depends on RISCV_SBI 91 select SERIAL_CORE 92 select SERIAL_CORE_CONSOLE 93 select SERIAL_EARLYCON 94 help 95 Support for early debug console using RISC-V SBI. This enables 96 the console before standard serial driver is probed. This is enabled 97 with "earlycon=sbi" on the kernel command line. The console is 98 enabled when early_param is processed. 99 100config SERIAL_SB1250_DUART 101 tristate "BCM1xxx on-chip DUART serial support" 102 depends on SIBYTE_SB1xxx_SOC=y 103 select SERIAL_CORE 104 default y 105 help 106 Support for the asynchronous serial interface (DUART) included in 107 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that 108 the letter D in DUART stands for "dual", which is how the device 109 is implemented. Depending on the SOC configuration there may be 110 one or more DUARTs available of which all are handled. 111 112 If unsure, say Y. To compile this driver as a module, choose M here: 113 the module will be called sb1250-duart. 114 115config SERIAL_SB1250_DUART_CONSOLE 116 bool "Support for console on a BCM1xxx DUART serial port" 117 depends on SERIAL_SB1250_DUART=y 118 select SERIAL_CORE_CONSOLE 119 default y 120 help 121 If you say Y here, it will be possible to use a serial port as the 122 system console (the system console is the device which receives all 123 kernel messages and warnings and which allows logins in single user 124 mode). 125 126 If unsure, say Y. 127 128config SERIAL_ATMEL 129 bool "AT91 on-chip serial port support" 130 depends on COMMON_CLK 131 depends on ARCH_MICROCHIP || COMPILE_TEST 132 select SERIAL_CORE 133 select SERIAL_MCTRL_GPIO if GPIOLIB 134 select MFD_AT91_USART 135 help 136 This enables the driver for the on-chip UARTs of the Atmel 137 AT91 processors. 138 139config SERIAL_ATMEL_CONSOLE 140 bool "Support for console on AT91 serial port" 141 depends on SERIAL_ATMEL=y 142 select SERIAL_CORE_CONSOLE 143 select SERIAL_EARLYCON 144 help 145 Say Y here if you wish to use an on-chip UART on a Atmel 146 AT91 processor as the system console (the system 147 console is the device which receives all kernel messages and 148 warnings and which allows logins in single user mode). 149 150config SERIAL_ATMEL_PDC 151 bool "Support DMA transfers on AT91 serial port" 152 depends on SERIAL_ATMEL 153 default y 154 help 155 Say Y here if you wish to use the PDC to do DMA transfers to 156 and from the Atmel AT91 serial port. In order to 157 actually use DMA transfers, make sure that the use_dma_tx 158 and use_dma_rx members in the atmel_uart_data struct is set 159 appropriately for each port. 160 161 Note that break and error handling currently doesn't work 162 properly when DMA is enabled. Make sure that ports where 163 this matters don't use DMA. 164 165config SERIAL_ATMEL_TTYAT 166 bool "Install as device ttyATn instead of ttySn" 167 depends on SERIAL_ATMEL=y 168 help 169 Say Y here if you wish to have the internal AT91 UARTs 170 appear as /dev/ttyATn (major 204, minor starting at 154) 171 instead of the normal /dev/ttySn (major 4, minor starting at 172 64). This is necessary if you also want other UARTs, such as 173 external 8250/16C550 compatible UARTs. 174 The ttySn nodes are legally reserved for the 8250 serial driver 175 but are often misused by other serial drivers. 176 177 To use this, you should create suitable ttyATn device nodes in 178 /dev/, and pass "console=ttyATn" to the kernel. 179 180 Say Y if you have an external 8250/16C550 UART. If unsure, say N. 181 182config SERIAL_MESON 183 tristate "Meson serial port support" 184 depends on ARCH_MESON || COMPILE_TEST 185 select SERIAL_CORE 186 help 187 This enables the driver for the on-chip UARTs of the Amlogic 188 MesonX processors. 189 190config SERIAL_MESON_CONSOLE 191 bool "Support for console on meson" 192 depends on SERIAL_MESON 193 select SERIAL_CORE_CONSOLE 194 select SERIAL_EARLYCON 195 help 196 Say Y here if you wish to use a Amlogic MesonX UART as the 197 system console (the system console is the device which 198 receives all kernel messages and warnings and which allows 199 logins in single user mode) as /dev/ttyAMLx. 200 201config SERIAL_CLPS711X 202 tristate "CLPS711X serial port support" 203 depends on ARCH_CLPS711X || COMPILE_TEST 204 select SERIAL_CORE 205 select SERIAL_MCTRL_GPIO if GPIOLIB 206 help 207 This enables the driver for the on-chip UARTs of the Cirrus 208 Logic EP711x/EP721x/EP731x processors. 209 210config SERIAL_CLPS711X_CONSOLE 211 bool "Support for console on CLPS711X serial port" 212 depends on SERIAL_CLPS711X=y 213 select SERIAL_CORE_CONSOLE 214 help 215 Even if you say Y here, the currently visible virtual console 216 (/dev/tty0) will still be used as the system console by default, but 217 you can alter that using a kernel command line option such as 218 "console=ttyCL1". 219 220config SERIAL_SAMSUNG 221 tristate "Samsung SoC serial support" 222 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || ARCH_APPLE || ARCH_ARTPEC || COMPILE_TEST 223 select SERIAL_CORE 224 help 225 Support for the on-chip UARTs on the Samsung 226 S3C64xx/S5Pv210/Exynos and Apple M1 SoCs, providing 227 /dev/ttySAC0, 1 and 2 (note, some machines may not provide all of 228 these ports, depending on how the serial port pins are configured. 229 230 Choose Y/M here only if you build for such SoC. 231 232config SERIAL_SAMSUNG_UARTS 233 int 234 depends on SERIAL_SAMSUNG 235 default 4 236 help 237 Select the number of available UART ports for the Samsung S3C 238 serial driver 239 240config SERIAL_SAMSUNG_CONSOLE 241 bool "Support for console on Samsung SoC serial port" 242 depends on SERIAL_SAMSUNG 243 select SERIAL_CORE_CONSOLE 244 select SERIAL_EARLYCON 245 help 246 Allow selection of the S3C24XX on-board serial ports for use as 247 an virtual console. 248 249 Even if you say Y here, the currently visible virtual console 250 (/dev/tty0) will still be used as the system console by default, but 251 you can alter that using a kernel command line option such as 252 "console=ttySACx". (Try "man bootparam" or see the documentation of 253 your boot loader about how to pass options to the kernel at 254 boot time.) 255 256config SERIAL_TEGRA 257 tristate "NVIDIA Tegra20/30 SoC serial controller" 258 depends on ARCH_TEGRA || COMPILE_TEST 259 select SERIAL_CORE 260 help 261 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs 262 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not 263 provide all of these ports, depending on how the serial port 264 are enabled). 265 266config SERIAL_TEGRA_TCU 267 tristate "NVIDIA Tegra Combined UART" 268 depends on MAILBOX 269 depends on (ARCH_TEGRA && TEGRA_HSP_MBOX) || COMPILE_TEST 270 select SERIAL_CORE 271 help 272 Support for the mailbox-based TCU (Tegra Combined UART) serial port. 273 TCU is a virtual serial port that allows multiplexing multiple data 274 streams into a single hardware serial port. 275 276config SERIAL_TEGRA_TCU_CONSOLE 277 bool "Support for console on a Tegra TCU serial port" 278 depends on SERIAL_TEGRA_TCU=y 279 select SERIAL_CORE_CONSOLE 280 default y 281 help 282 If you say Y here, it will be possible to use a the Tegra TCU as the 283 system console (the system console is the device which receives all 284 kernel messages and warnings and which allows logins in single user 285 mode). 286 287 If unsure, say Y. 288 289config SERIAL_TEGRA_UTC 290 tristate "NVIDIA Tegra UART Trace Controller" 291 depends on ARCH_TEGRA || COMPILE_TEST 292 select SERIAL_CORE 293 help 294 Support for Tegra UTC (UART Trace controller) client serial port. 295 296 UTC is a HW based serial port that allows multiplexing multiple data 297 streams of up to 16 UTC clients into a single hardware serial port. 298 299config SERIAL_TEGRA_UTC_CONSOLE 300 bool "Support for console on a Tegra UTC serial port" 301 depends on SERIAL_TEGRA_UTC 302 select SERIAL_CORE_CONSOLE 303 default SERIAL_TEGRA_UTC 304 help 305 If you say Y here, it will be possible to use a Tegra UTC client as 306 the system console (the system console is the device which receives 307 all kernel messages and warnings and which allows logins in single 308 user mode). 309 310 If unsure, say Y. 311 312config SERIAL_MAX3100 313 tristate "MAX3100/3110/3111/3222 support" 314 depends on SPI 315 select SERIAL_CORE 316 help 317 This selects support for an advanced UART from Maxim. 318 Supported ICs are MAX3100, MAX3110, MAX3111, MAX3222. 319 320 Say Y here if you want to support these ICs. 321 322config SERIAL_MAX310X 323 tristate "MAX310X support" 324 depends on SPI_MASTER 325 select SERIAL_CORE 326 select REGMAP_SPI if SPI_MASTER 327 select REGMAP_I2C if I2C 328 help 329 This selects support for an advanced UART from Maxim (Dallas). 330 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830. 331 Each IC contains 128 words each of receive and transmit FIFO 332 that can be controlled through I2C or high-speed SPI. 333 334 Say Y here if you want to support this ICs. 335 336config SERIAL_DZ 337 bool "DECstation DZ serial driver" 338 depends on MACH_DECSTATION && 32BIT 339 select SERIAL_CORE 340 default y 341 help 342 DZ11-family serial controllers for DECstations and VAXstations, 343 including the DC7085, M7814, and M7819. 344 345config SERIAL_DZ_CONSOLE 346 bool "Support console on DECstation DZ serial driver" 347 depends on SERIAL_DZ=y 348 select SERIAL_CORE_CONSOLE 349 default y 350 help 351 If you say Y here, it will be possible to use a serial port as the 352 system console (the system console is the device which receives all 353 kernel messages and warnings and which allows logins in single user 354 mode). 355 356 Note that the firmware uses ttyS3 as the serial console on 357 DECstations that use this driver. 358 359 If unsure, say Y. 360 361config SERIAL_ZS 362 tristate "DECstation Z85C30 serial support" 363 depends on MACH_DECSTATION 364 select SERIAL_CORE 365 default y 366 help 367 Support for the Zilog 85C350 serial communications controller used 368 for serial ports in newer DECstation systems. These include the 369 DECsystem 5900 and all models of the DECstation and DECsystem 5000 370 systems except from model 200. 371 372 If unsure, say Y. To compile this driver as a module, choose M here: 373 the module will be called zs. 374 375config SERIAL_ZS_CONSOLE 376 bool "Support for console on a DECstation Z85C30 serial port" 377 depends on SERIAL_ZS=y 378 select SERIAL_CORE_CONSOLE 379 default y 380 help 381 If you say Y here, it will be possible to use a serial port as the 382 system console (the system console is the device which receives all 383 kernel messages and warnings and which allows logins in single user 384 mode). 385 386 Note that the firmware uses ttyS1 as the serial console on the 387 Maxine and ttyS3 on the others using this driver. 388 389 If unsure, say Y. 390 391config SERIAL_21285 392 tristate "DC21285 serial port support" 393 depends on FOOTBRIDGE 394 select SERIAL_CORE 395 help 396 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/ 397 PCI bridge you can enable its onboard serial port by enabling this 398 option. 399 400config SERIAL_21285_CONSOLE 401 bool "Console on DC21285 serial port" 402 depends on SERIAL_21285=y 403 select SERIAL_CORE_CONSOLE 404 help 405 If you have enabled the serial port on the 21285 footbridge you can 406 make it the console by answering Y to this option. 407 408 Even if you say Y here, the currently visible virtual console 409 (/dev/tty0) will still be used as the system console by default, but 410 you can alter that using a kernel command line option such as 411 "console=ttyFB". (Try "man bootparam" or see the documentation of 412 your boot loader (lilo or loadlin) about how to pass options to the 413 kernel at boot time.) 414 415config SERIAL_PXA_NON8250 416 bool 417 depends on !SERIAL_8250 || COMPILE_TEST 418 419config SERIAL_PXA 420 bool "PXA serial port support (DEPRECATED)" 421 depends on ARCH_PXA || ARCH_MMP 422 select SERIAL_CORE 423 select SERIAL_8250_PXA if SERIAL_8250=y 424 select SERIAL_PXA_NON8250 if !SERIAL_8250=y 425 help 426 If you have a machine based on an Intel XScale PXA2xx CPU you 427 can enable its onboard serial ports by enabling this option. 428 429 Unless you have a specific need, you should use SERIAL_8250_PXA 430 instead of this. 431 432config SERIAL_PXA_CONSOLE 433 bool "Console on PXA serial port (DEPRECATED)" 434 depends on SERIAL_PXA 435 select SERIAL_CORE_CONSOLE 436 select SERIAL_8250_CONSOLE if SERIAL_8250=y 437 help 438 If you have enabled the serial port on the Intel XScale PXA 439 CPU you can make it the console by answering Y to this option. 440 441 Even if you say Y here, the currently visible virtual console 442 (/dev/tty0) will still be used as the system console by default, but 443 you can alter that using a kernel command line option such as 444 "console=ttySA0". (Try "man bootparam" or see the documentation of 445 your boot loader (lilo or loadlin) about how to pass options to the 446 kernel at boot time.) 447 448 Unless you have a specific need, you should use SERIAL_8250_PXA 449 and SERIAL_8250_CONSOLE instead of this. 450 451config SERIAL_SA1100 452 bool "SA1100 serial port support" 453 depends on ARCH_SA1100 454 select SERIAL_CORE 455 select SERIAL_MCTRL_GPIO if GPIOLIB 456 help 457 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you 458 can enable its onboard serial port by enabling this option. 459 Please read <file:Documentation/arch/arm/sa1100/serial_uart.rst> for 460 further info. 461 462config SERIAL_SA1100_CONSOLE 463 bool "Console on SA1100 serial port" 464 depends on SERIAL_SA1100 465 select SERIAL_CORE_CONSOLE 466 help 467 If you have enabled the serial port on the SA1100/SA1110 StrongARM 468 CPU you can make it the console by answering Y to this option. 469 470 Even if you say Y here, the currently visible virtual console 471 (/dev/tty0) will still be used as the system console by default, but 472 you can alter that using a kernel command line option such as 473 "console=ttySA0". (Try "man bootparam" or see the documentation of 474 your boot loader (lilo or loadlin) about how to pass options to the 475 kernel at boot time.) 476 477config SERIAL_IMX 478 tristate "IMX serial port support" 479 depends on ARCH_MXC || COMPILE_TEST 480 select SERIAL_CORE 481 select RATIONAL 482 select SERIAL_MCTRL_GPIO if GPIOLIB 483 help 484 If you have a machine based on a Motorola IMX CPU you 485 can enable its onboard serial port by enabling this option. 486 487config SERIAL_IMX_CONSOLE 488 bool "Console on IMX serial port" 489 depends on SERIAL_IMX 490 select SERIAL_CORE_CONSOLE 491 help 492 If you have enabled the serial port on the Freescale IMX 493 CPU you can make it the console by answering Y to this option. 494 495 Even if you say Y here, the currently visible virtual console 496 (/dev/tty0) will still be used as the system console by default, but 497 you can alter that using a kernel command line option such as 498 "console=ttymxc0". (Try "man bootparam" or see the documentation of 499 your bootloader about how to pass options to the kernel at boot time.) 500 501config SERIAL_IMX_EARLYCON 502 bool "Earlycon on IMX serial port" 503 depends on ARCH_MXC || COMPILE_TEST 504 depends on OF 505 select SERIAL_CORE 506 select SERIAL_EARLYCON 507 select SERIAL_CORE_CONSOLE 508 default y if SERIAL_IMX_CONSOLE 509 help 510 If you have enabled the earlycon on the Freescale IMX 511 CPU you can make it the earlycon by answering Y to this option. 512 513config SERIAL_UARTLITE 514 tristate "Xilinx uartlite serial port support" 515 depends on HAS_IOMEM 516 select SERIAL_CORE 517 help 518 Say Y here if you want to use the Xilinx uartlite serial controller. 519 520 To compile this driver as a module, choose M here: the 521 module will be called uartlite. 522 523config SERIAL_UARTLITE_CONSOLE 524 bool "Support for console on Xilinx uartlite serial port" 525 depends on SERIAL_UARTLITE=y 526 select SERIAL_CORE_CONSOLE 527 select SERIAL_EARLYCON 528 help 529 Say Y here if you wish to use a Xilinx uartlite as the system 530 console (the system console is the device which receives all kernel 531 messages and warnings and which allows logins in single user mode). 532 533config SERIAL_UARTLITE_NR_UARTS 534 int "Maximum number of uartlite serial ports" 535 depends on SERIAL_UARTLITE 536 range 1 256 537 default 1 538 help 539 Set this to the number of uartlites in your system, or the number 540 you think you might implement. 541 If maximum number of uartlite serial ports is more than 4, then the 542 driver uses dynamic allocation instead of static allocation for major 543 number. 544 545config SERIAL_SUNCORE 546 bool 547 depends on SPARC 548 select SERIAL_CORE 549 select SERIAL_CORE_CONSOLE 550 default y 551 552config SERIAL_SUNZILOG 553 tristate "Sun Zilog8530 serial support" 554 depends on SPARC 555 help 556 This driver supports the Zilog8530 serial ports found on many Sparc 557 systems. Say Y or M if you want to be able to these serial ports. 558 559config SERIAL_SUNZILOG_CONSOLE 560 bool "Console on Sun Zilog8530 serial port" 561 depends on SERIAL_SUNZILOG=y 562 help 563 If you would like to be able to use the Zilog8530 serial port 564 on your Sparc system as the console, you can do so by answering 565 Y to this option. 566 567config SERIAL_SUNSU 568 tristate "Sun SU serial support" 569 depends on SPARC && PCI 570 help 571 This driver supports the 8250 serial ports that run the keyboard and 572 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able 573 to these serial ports. 574 575config SERIAL_SUNSU_CONSOLE 576 bool "Console on Sun SU serial port" 577 depends on SERIAL_SUNSU=y 578 help 579 If you would like to be able to use the SU serial port 580 on your Sparc system as the console, you can do so by answering 581 Y to this option. 582 583config SERIAL_MUX 584 tristate "Serial MUX support" 585 depends on GSC 586 select SERIAL_CORE 587 default y 588 help 589 Saying Y here will enable the hardware MUX serial driver for 590 the Nova, K class systems and D class with a 'remote control card'. 591 The hardware MUX is not 8250/16550 compatible therefore the 592 /dev/ttyB0 device is shared between the Serial MUX and the PDC 593 software console. The following steps need to be completed to use 594 the Serial MUX: 595 596 1. create the device entry (mknod /dev/ttyB0 c 11 0) 597 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 598 3. Add device ttyB0 to /etc/securetty (if you want to log on as 599 root on this console.) 600 4. Change the kernel command console parameter to: console=ttyB0 601 602config SERIAL_MUX_CONSOLE 603 bool "Support for console on serial MUX" 604 depends on SERIAL_MUX=y 605 select SERIAL_CORE_CONSOLE 606 default y 607 608config SERIAL_SUNSAB 609 tristate "Sun Siemens SAB82532 serial support" 610 depends on SPARC && PCI 611 help 612 This driver supports the Siemens SAB82532 DUSCC serial ports on newer 613 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these 614 serial ports. 615 616config SERIAL_SUNSAB_CONSOLE 617 bool "Console on Sun Siemens SAB82532 serial port" 618 depends on SERIAL_SUNSAB=y 619 help 620 If you would like to be able to use the SAB82532 serial port 621 on your Sparc system as the console, you can do so by answering 622 Y to this option. 623 624config SERIAL_SUNHV 625 bool "Sun4v Hypervisor Console support" 626 depends on SPARC64 627 help 628 This driver supports the console device found on SUN4V Sparc 629 systems. Say Y if you want to be able to use this device. 630 631config SERIAL_IP22_ZILOG 632 tristate "SGI Zilog8530 serial support" 633 depends on SGI_HAS_ZILOG 634 select SERIAL_CORE 635 help 636 This driver supports the Zilog8530 serial ports found on SGI 637 systems. Say Y or M if you want to be able to these serial ports. 638 639config SERIAL_IP22_ZILOG_CONSOLE 640 bool "Console on SGI Zilog8530 serial port" 641 depends on SERIAL_IP22_ZILOG=y 642 select SERIAL_CORE_CONSOLE 643 644config SERIAL_SH_SCI 645 tristate "SuperH SCI(F) serial port support" 646 depends on SUPERH || ARCH_RENESAS || COMPILE_TEST 647 select SERIAL_CORE 648 select SERIAL_MCTRL_GPIO if GPIOLIB 649 650config SERIAL_SH_SCI_NR_UARTS 651 int "Maximum number of SCI(F) serial ports" if EXPERT 652 range 1 64 if 64BIT 653 range 1 32 if !64BIT 654 depends on SERIAL_SH_SCI 655 default "10" if SUPERH 656 default "18" if ARCH_RENESAS 657 default "2" 658 659config SERIAL_SH_SCI_CONSOLE 660 bool "Support for console on SuperH SCI(F)" if EXPERT 661 depends on SERIAL_SH_SCI=y 662 select SERIAL_CORE_CONSOLE 663 default y 664 665config SERIAL_SH_SCI_EARLYCON 666 bool "Support for early console on SuperH SCI(F)" if EXPERT 667 depends on SERIAL_SH_SCI=y 668 select SERIAL_CORE_CONSOLE 669 select SERIAL_EARLYCON 670 default ARCH_RENESAS 671 672config SERIAL_SH_SCI_DMA 673 bool "Support for DMA on SuperH SCI(F)" if EXPERT 674 depends on SERIAL_SH_SCI && DMA_ENGINE 675 default ARCH_RENESAS 676 677config SERIAL_RSCI 678 tristate "Support for Renesas RZ/T2H SCI variant" 679 depends on SERIAL_SH_SCI 680 help 681 Support for the RZ/T2H SCI variant with fifo. 682 Say Y if you want to be able to use the RZ/T2H SCI serial port. 683 684config SERIAL_HS_LPC32XX 685 tristate "LPC32XX high speed serial port support" 686 depends on ARCH_LPC32XX || COMPILE_TEST 687 depends on OF 688 select SERIAL_CORE 689 help 690 Support for the LPC32XX high speed serial ports (up to 900kbps). 691 Those are UARTs completely different from the Standard UARTs on the 692 LPC32XX SoC. 693 Choose M or Y here to build this driver. 694 695config SERIAL_HS_LPC32XX_CONSOLE 696 bool "Enable LPC32XX high speed UART serial console" 697 depends on SERIAL_HS_LPC32XX=y 698 select SERIAL_CORE_CONSOLE 699 help 700 If you would like to be able to use one of the high speed serial 701 ports on the LPC32XX as the console, you can do so by answering 702 Y to this option. 703 704config SERIAL_CORE 705 tristate 706 707config SERIAL_CORE_CONSOLE 708 bool 709 710config CONSOLE_POLL 711 bool 712 713config SERIAL_MCF 714 bool "Coldfire serial support" 715 depends on COLDFIRE 716 select SERIAL_CORE 717 help 718 This serial driver supports the Freescale Coldfire serial ports. 719 720config SERIAL_MCF_BAUDRATE 721 int "Default baudrate for Coldfire serial ports" 722 depends on SERIAL_MCF 723 default 19200 724 help 725 This setting lets you define what the default baudrate is for the 726 ColdFire serial ports. The usual default varies from board to board, 727 and this setting is a way of catering for that. 728 729config SERIAL_MCF_CONSOLE 730 bool "Coldfire serial console support" 731 depends on SERIAL_MCF 732 select SERIAL_CORE_CONSOLE 733 help 734 Enable a ColdFire internal serial port to be the system console. 735 736config SERIAL_PMACZILOG 737 tristate "Mac or PowerMac z85c30 ESCC support" 738 depends on (M68K && MAC) || PPC_PMAC 739 select SERIAL_CORE 740 help 741 This driver supports the Zilog z85C30 serial ports found on 742 (Power)Mac machines. 743 Say Y or M if you want to be able to these serial ports. 744 745config SERIAL_PMACZILOG_TTYS 746 bool "Use ttySn device nodes for Zilog z85c30" 747 depends on SERIAL_PMACZILOG 748 help 749 The pmac_zilog driver for the z85C30 chip on many powermacs 750 historically used the device numbers for /dev/ttySn. The 751 8250 serial port driver also uses these numbers, which means 752 the two drivers being unable to coexist; you could not use 753 both z85C30 and 8250 type ports at the same time. 754 755 If this option is not selected, the pmac_zilog driver will 756 use the device numbers allocated for /dev/ttyPZn. This allows 757 the pmac_zilog and 8250 drivers to co-exist, but may cause 758 existing userspace setups to break. Programs that need to 759 access the built-in serial ports on powermacs will need to 760 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn. 761 762 If you enable this option, any z85c30 ports in the system will 763 be registered as ttyS0 onwards as in the past, and you will be 764 unable to use the 8250 module for PCMCIA or other 16C550-style 765 UARTs. 766 767 Say N unless you need the z85c30 ports on your (Power)Mac 768 to appear as /dev/ttySn. 769 770config SERIAL_PMACZILOG_CONSOLE 771 bool "Console on Mac or PowerMac z85c30 serial port" 772 depends on SERIAL_PMACZILOG=y 773 select SERIAL_CORE_CONSOLE 774 help 775 If you would like to be able to use the z85c30 serial port 776 on your (Power)Mac as the console, you can do so by answering 777 Y to this option. 778 779config SERIAL_CPM 780 tristate "CPM SCC/SMC serial port support" 781 depends on CPM2 || CPM1 782 select SERIAL_CORE 783 help 784 This driver supports the SCC and SMC serial ports on Motorola 785 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx) 786 787config SERIAL_CPM_CONSOLE 788 bool "Support for console on CPM SCC/SMC serial port" 789 depends on SERIAL_CPM=y 790 select SERIAL_CORE_CONSOLE 791 help 792 Say Y here if you wish to use a SCC or SMC CPM UART as the system 793 console (the system console is the device which receives all kernel 794 messages and warnings and which allows logins in single user mode). 795 796 Even if you say Y here, the currently visible framebuffer console 797 (/dev/tty0) will still be used as the system console by default, but 798 you can alter that using a kernel command line option such as 799 "console=ttyCPM0". (Try "man bootparam" or see the documentation of 800 your boot loader (lilo or loadlin) about how to pass options to the 801 kernel at boot time.) 802 803config SERIAL_PIC32 804 tristate "Microchip PIC32 serial support" 805 depends on MACH_PIC32 || COMPILE_TEST 806 select SERIAL_CORE 807 help 808 If you have a PIC32, this driver supports the serial ports. 809 810 Say Y or M to use PIC32 serial ports, otherwise say N. Note that 811 to use a serial port as a console, this must be included in kernel and 812 not as a module. 813 814config SERIAL_PIC32_CONSOLE 815 bool "PIC32 serial console support" 816 depends on SERIAL_PIC32=y 817 select SERIAL_CORE_CONSOLE 818 help 819 If you have a PIC32, this driver supports the putting a console on one 820 of the serial ports. 821 822 Say Y to use the PIC32 console, otherwise say N. 823 824config SERIAL_MPC52xx 825 tristate "Freescale MPC52xx/MPC512x family PSC serial support" 826 depends on PPC_MPC52xx || PPC_MPC512x 827 select SERIAL_CORE 828 help 829 This driver supports MPC52xx and MPC512x PSC serial ports. If you would 830 like to use them, you must answer Y or M to this option. Note that 831 for use as console, it must be included in kernel and not as a 832 module. 833 834config SERIAL_MPC52xx_CONSOLE 835 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port" 836 depends on SERIAL_MPC52xx=y 837 select SERIAL_CORE_CONSOLE 838 help 839 Select this options if you'd like to use one of the PSC serial port 840 of the Freescale MPC52xx family as a console. 841 842config SERIAL_MPC52xx_CONSOLE_BAUD 843 int "Freescale MPC52xx/MPC512x family PSC serial port baud" 844 depends on SERIAL_MPC52xx_CONSOLE=y 845 default "9600" 846 help 847 Select the MPC52xx console baud rate. 848 This value is only used if the bootloader doesn't pass in the 849 console baudrate 850 851config SERIAL_ICOM 852 tristate "IBM Multiport Serial Adapter" 853 depends on PCI 854 depends on PPC_PSERIES || COMPILE_TEST 855 select SERIAL_CORE 856 select FW_LOADER 857 help 858 This driver is for a family of multiport serial adapters 859 including 2 port RVX, 2 port internal modem, 4 port internal 860 modem and a split 1 port RVX and 1 port internal modem. 861 862 This driver can also be built as a module. If so, the module 863 will be called icom. 864 865config HAS_TXX9_SERIAL 866 bool 867 868config SERIAL_TXX9 869 bool "TMPTX39XX/49XX SIO support" 870 depends on HAS_TXX9_SERIAL 871 select SERIAL_CORE 872 default y 873 874config SERIAL_TXX9_NR_UARTS 875 int "Maximum number of TMPTX39XX/49XX SIO ports" 876 depends on SERIAL_TXX9 877 default "6" 878 879config SERIAL_TXX9_CONSOLE 880 bool "TMPTX39XX/49XX SIO Console support" 881 depends on SERIAL_TXX9=y 882 select SERIAL_CORE_CONSOLE 883 884config SERIAL_TXX9_STDSERIAL 885 bool "TX39XX/49XX SIO act as standard serial" 886 depends on !SERIAL_8250 && SERIAL_TXX9 887 888config SERIAL_JSM 889 tristate "Digi International NEO and Classic PCI Support" 890 depends on PCI && HAS_IOPORT 891 select SERIAL_CORE 892 help 893 This is a driver for Digi International's Neo and Classic series 894 of cards which provide multiple serial ports. You would need 895 something like this to connect more than two modems to your Linux 896 box, for instance in order to become a dial-in server. This driver 897 supports PCI boards only. 898 899 If you have a card like this, say Y here, otherwise say N. 900 901 To compile this driver as a module, choose M here: the 902 module will be called jsm. 903 904config SERIAL_MSM 905 tristate "MSM on-chip serial port support" 906 depends on ARCH_QCOM || COMPILE_TEST 907 select SERIAL_CORE 908 909config SERIAL_MSM_CONSOLE 910 bool "MSM serial console support" 911 depends on SERIAL_MSM=y 912 select SERIAL_CORE_CONSOLE 913 select SERIAL_EARLYCON 914 915config SERIAL_QCOM_GENI 916 tristate "QCOM on-chip GENI based serial port support" 917 depends on ARCH_QCOM || COMPILE_TEST 918 depends on QCOM_GENI_SE 919 select SERIAL_CORE 920 921config SERIAL_QCOM_GENI_CONSOLE 922 bool "QCOM GENI Serial Console support" 923 depends on SERIAL_QCOM_GENI 924 select SERIAL_CORE_CONSOLE 925 select SERIAL_EARLYCON 926 help 927 Serial console driver for Qualcomm Technologies Inc's GENI based 928 QUP hardware. 929 930config SERIAL_QCOM_GENI_UART_PORTS 931 int "Maximum number of GENI UART ports" 932 depends on SERIAL_QCOM_GENI 933 default "8" 934 help 935 Set this to the maximum number of serial ports you want the driver 936 to support. 937 938config SERIAL_VT8500 939 bool "VIA VT8500 on-chip serial port support" 940 depends on ARCH_VT8500 || COMPILE_TEST 941 select SERIAL_CORE 942 943config SERIAL_VT8500_CONSOLE 944 bool "VIA VT8500 serial console support" 945 depends on SERIAL_VT8500=y 946 select SERIAL_CORE_CONSOLE 947 948config SERIAL_OMAP 949 tristate "OMAP serial port support" 950 depends on (ARCH_OMAP2PLUS && !SERIAL_8250_OMAP) || COMPILE_TEST 951 select SERIAL_CORE 952 help 953 If you have a machine based on an Texas Instruments OMAP CPU you 954 can enable its onboard serial ports by enabling this option. 955 956 By enabling this option you take advantage of dma feature available 957 with the omap-serial driver. DMA support can be enabled from platform 958 data. 959 960config SERIAL_OMAP_CONSOLE 961 bool "Console on OMAP serial port" 962 depends on SERIAL_OMAP=y 963 select SERIAL_CORE_CONSOLE 964 help 965 Select this option if you would like to use omap serial port as 966 console. 967 968 Even if you say Y here, the currently visible virtual console 969 (/dev/tty0) will still be used as the system console by default, but 970 you can alter that using a kernel command line option such as 971 "console=ttyOx". (Try "man bootparam" or see the documentation of 972 your boot loader about how to pass options to the kernel at 973 boot time.) 974 975config SERIAL_SIFIVE 976 tristate "SiFive UART support" 977 depends on OF 978 default ARCH_SIFIVE || ARCH_CANAAN 979 select SERIAL_CORE 980 help 981 Select this option if you are building a kernel for a device that 982 contains a SiFive UART IP block. This type of UART is present on 983 SiFive FU540 SoCs, among others. 984 985config SERIAL_SIFIVE_CONSOLE 986 bool "Console on SiFive UART" 987 depends on SERIAL_SIFIVE=y 988 default ARCH_SIFIVE || ARCH_CANAAN 989 select SERIAL_CORE_CONSOLE 990 select SERIAL_EARLYCON 991 help 992 Select this option if you would like to use a SiFive UART as the 993 system console. 994 995 Even if you say Y here, the currently visible virtual console 996 (/dev/tty0) will still be used as the system console by default, but 997 you can alter that using a kernel command line option such as 998 "console=ttySIFx". (Try "man bootparam" or see the documentation of 999 your boot loader about how to pass options to the kernel at 1000 boot time.) 1001 1002config SERIAL_LANTIQ 1003 tristate "Lantiq serial driver" 1004 depends on (LANTIQ || X86) || COMPILE_TEST 1005 select SERIAL_CORE 1006 help 1007 Support for UART on Lantiq and Intel SoCs. 1008 To compile this driver as a module, select M here. The 1009 module will be called lantiq. 1010 1011config SERIAL_LANTIQ_CONSOLE 1012 bool "Console on Lantiq UART" 1013 depends on SERIAL_LANTIQ=y 1014 select SERIAL_CORE_CONSOLE 1015 select SERIAL_EARLYCON 1016 help 1017 Select this option if you would like to use a Lantiq UART as the 1018 system console. 1019 1020config SERIAL_QE 1021 tristate "Freescale QUICC Engine serial port support" 1022 depends on QUICC_ENGINE 1023 select SERIAL_CORE 1024 select FW_LOADER 1025 help 1026 This driver supports the QE serial ports on Freescale embedded 1027 PowerPC that contain a QUICC Engine. 1028 1029config SERIAL_SCCNXP 1030 tristate "SCCNXP serial port support" 1031 select SERIAL_CORE 1032 help 1033 This selects support for an advanced UART from NXP (Philips). 1034 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92, 1035 SC28L202, SCC68681 and SCC68692. 1036 1037config SERIAL_SCCNXP_CONSOLE 1038 bool "Console on SCCNXP serial port" 1039 depends on SERIAL_SCCNXP=y 1040 select SERIAL_CORE_CONSOLE 1041 help 1042 Support for console on SCCNXP serial ports. 1043 1044config SERIAL_SC16IS7XX 1045 tristate "NXP SC16IS7xx UART support" 1046 depends on SPI_MASTER || I2C || COMPILE_TEST 1047 select SERIAL_CORE 1048 select SERIAL_SC16IS7XX_SPI if SPI_MASTER 1049 select SERIAL_SC16IS7XX_I2C if I2C 1050 help 1051 Core driver for NXP SC16IS7xx UARTs. 1052 Supported ICs are: 1053 1054 SC16IS740 1055 SC16IS741 1056 SC16IS750 1057 SC16IS752 1058 SC16IS760 1059 SC16IS762 1060 1061 The driver supports both I2C and SPI interfaces. 1062 1063config SERIAL_SC16IS7XX_I2C 1064 tristate 1065 select REGMAP_I2C 1066 1067config SERIAL_SC16IS7XX_SPI 1068 tristate 1069 select REGMAP_SPI 1070 1071config SERIAL_TIMBERDALE 1072 tristate "Support for timberdale UART" 1073 select SERIAL_CORE 1074 depends on X86_32 || COMPILE_TEST 1075 help 1076 Add support for UART controller on timberdale. 1077 1078config SERIAL_BCM63XX 1079 tristate "Broadcom BCM63xx/BCM33xx UART support" 1080 select SERIAL_CORE 1081 depends on ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST 1082 default ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC 1083 help 1084 This enables the driver for the onchip UART core found on 1085 the following chipsets: 1086 1087 BCM33xx (cable modem) 1088 BCM63xx/BCM63xxx (DSL) 1089 BCM68xx (PON) 1090 BCM7xxx (STB) - DOCSIS console 1091 1092config SERIAL_BCM63XX_CONSOLE 1093 bool "Console on BCM63xx serial port" 1094 depends on SERIAL_BCM63XX=y 1095 select SERIAL_CORE_CONSOLE 1096 select SERIAL_EARLYCON 1097 help 1098 If you have enabled the serial port on the BCM63xx CPU 1099 you can make it the console by answering Y to this option. 1100 1101config SERIAL_GRLIB_GAISLER_APBUART 1102 tristate "GRLIB APBUART serial support" 1103 depends on OF && SPARC 1104 select SERIAL_CORE 1105 help 1106 Add support for the GRLIB APBUART serial port. 1107 1108config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE 1109 bool "Console on GRLIB APBUART serial port" 1110 depends on SERIAL_GRLIB_GAISLER_APBUART=y 1111 select SERIAL_CORE_CONSOLE 1112 help 1113 Support for running a console on the GRLIB APBUART 1114 1115config SERIAL_ALTERA_JTAGUART 1116 tristate "Altera JTAG UART support" 1117 select SERIAL_CORE 1118 help 1119 This driver supports the Altera JTAG UART port. 1120 1121config SERIAL_ALTERA_JTAGUART_CONSOLE 1122 bool "Altera JTAG UART console support" 1123 depends on SERIAL_ALTERA_JTAGUART=y 1124 select SERIAL_CORE_CONSOLE 1125 select SERIAL_EARLYCON 1126 help 1127 Enable a Altera JTAG UART port to be the system console. 1128 1129config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS 1130 bool "Bypass output when no connection" 1131 depends on SERIAL_ALTERA_JTAGUART_CONSOLE 1132 select SERIAL_CORE_CONSOLE 1133 help 1134 Bypass console output and keep going even if there is no 1135 JTAG terminal connection with the host. 1136 1137config SERIAL_ALTERA_UART 1138 tristate "Altera UART support" 1139 select SERIAL_CORE 1140 help 1141 This driver supports the Altera softcore UART port. 1142 1143config SERIAL_ALTERA_UART_MAXPORTS 1144 int "Maximum number of Altera UART ports" 1145 depends on SERIAL_ALTERA_UART 1146 default 4 1147 help 1148 This setting lets you define the maximum number of the Altera 1149 UART ports. The usual default varies from board to board, and 1150 this setting is a way of catering for that. 1151 1152config SERIAL_ALTERA_UART_BAUDRATE 1153 int "Default baudrate for Altera UART ports" 1154 depends on SERIAL_ALTERA_UART 1155 default 115200 1156 help 1157 This setting lets you define what the default baudrate is for the 1158 Altera UART ports. The usual default varies from board to board, 1159 and this setting is a way of catering for that. 1160 1161config SERIAL_ALTERA_UART_CONSOLE 1162 bool "Altera UART console support" 1163 depends on SERIAL_ALTERA_UART=y 1164 select SERIAL_CORE_CONSOLE 1165 select SERIAL_EARLYCON 1166 help 1167 Enable a Altera UART port to be the system console. 1168 1169config SERIAL_PCH_UART 1170 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART" 1171 depends on PCI && (X86_32 || MIPS || COMPILE_TEST) 1172 select SERIAL_CORE 1173 help 1174 This driver is for PCH(Platform controller Hub) UART of Intel EG20T 1175 which is an IOH(Input/Output Hub) for x86 embedded processor. 1176 Enabling PCH_DMA, this PCH UART works as DMA mode. 1177 1178 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1179 Output Hub), ML7213, ML7223 and ML7831. 1180 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 1181 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 1182 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1183 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1184 1185config SERIAL_PCH_UART_CONSOLE 1186 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH" 1187 depends on SERIAL_PCH_UART=y 1188 select SERIAL_CORE_CONSOLE 1189 help 1190 Say Y here if you wish to use the PCH UART as the system console 1191 (the system console is the device which receives all kernel messages and 1192 warnings and which allows logins in single user mode). 1193 1194config SERIAL_MXS_AUART 1195 tristate "MXS AUART support" 1196 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST 1197 select SERIAL_CORE 1198 select SERIAL_MCTRL_GPIO if GPIOLIB 1199 help 1200 This driver supports the MXS and Alphascale ASM9260 Application 1201 UART (AUART) port. 1202 1203config SERIAL_MXS_AUART_CONSOLE 1204 bool "MXS AUART console support" 1205 depends on SERIAL_MXS_AUART=y 1206 select SERIAL_CORE_CONSOLE 1207 help 1208 Enable a MXS AUART port to be the system console. 1209 1210config SERIAL_XILINX_PS_UART 1211 tristate "Cadence (Xilinx Zynq) UART support" 1212 depends on OF 1213 select SERIAL_CORE 1214 help 1215 This driver supports the Cadence UART. It is found e.g. in Xilinx 1216 Zynq. 1217 1218config SERIAL_XILINX_PS_UART_CONSOLE 1219 bool "Cadence UART console support" 1220 depends on SERIAL_XILINX_PS_UART=y 1221 select SERIAL_CORE_CONSOLE 1222 select SERIAL_EARLYCON 1223 help 1224 Enable a Cadence UART port to be the system console. 1225 1226config SERIAL_AR933X 1227 tristate "AR933X serial port support" 1228 depends on (HAVE_CLK && ATH79) || (MIPS && COMPILE_TEST) 1229 select SERIAL_CORE 1230 select SERIAL_MCTRL_GPIO if GPIOLIB 1231 help 1232 If you have an Atheros AR933X SOC based board and want to use the 1233 built-in UART of the SoC, say Y to this option. 1234 1235 To compile this driver as a module, choose M here: the 1236 module will be called ar933x_uart. 1237 1238config SERIAL_AR933X_CONSOLE 1239 bool "Console on AR933X serial port" 1240 depends on SERIAL_AR933X=y 1241 select SERIAL_CORE_CONSOLE 1242 help 1243 Enable a built-in UART port of the AR933X to be the system console. 1244 1245config SERIAL_AR933X_NR_UARTS 1246 int "Maximum number of AR933X serial ports" 1247 depends on SERIAL_AR933X 1248 default "2" 1249 help 1250 Set this to the number of serial ports you want the driver 1251 to support. 1252 1253config SERIAL_MPS2_UART 1254 bool "MPS2 UART port" 1255 depends on ARCH_MPS2 || COMPILE_TEST 1256 select SERIAL_CORE 1257 help 1258 This driver support the UART ports on ARM MPS2. 1259 1260config SERIAL_MPS2_UART_CONSOLE 1261 bool "MPS2 UART console support" 1262 depends on SERIAL_MPS2_UART 1263 select SERIAL_CORE_CONSOLE 1264 select SERIAL_EARLYCON 1265 1266config SERIAL_ARC 1267 tristate "ARC UART driver support" 1268 select SERIAL_CORE 1269 help 1270 Driver for on-chip UART for ARC(Synopsys) for the legacy 1271 FPGA Boards (ML50x/ARCAngel4) 1272 1273config SERIAL_ARC_CONSOLE 1274 bool "Console on ARC UART" 1275 depends on SERIAL_ARC=y 1276 select SERIAL_CORE_CONSOLE 1277 select SERIAL_EARLYCON 1278 help 1279 Enable system Console on ARC UART 1280 1281config SERIAL_ARC_NR_PORTS 1282 int "Number of ARC UART ports" 1283 depends on SERIAL_ARC 1284 range 1 3 1285 default "1" 1286 help 1287 Set this to the number of serial ports you want the driver 1288 to support. 1289 1290config SERIAL_RP2 1291 tristate "Comtrol RocketPort EXPRESS/INFINITY support" 1292 depends on PCI 1293 select SERIAL_CORE 1294 help 1295 This driver supports the Comtrol RocketPort EXPRESS and 1296 RocketPort INFINITY families of PCI/PCIe multiport serial adapters. 1297 These adapters use a "RocketPort 2" ASIC that is not compatible 1298 with the original RocketPort driver (CONFIG_ROCKETPORT). 1299 1300 To compile this driver as a module, choose M here: the 1301 module will be called rp2. 1302 1303 If you want to compile this driver into the kernel, say Y here. If 1304 you don't have a suitable RocketPort card installed, say N. 1305 1306config SERIAL_RP2_NR_UARTS 1307 int "Maximum number of RocketPort EXPRESS/INFINITY ports" 1308 depends on SERIAL_RP2 1309 default "32" 1310 help 1311 If multiple cards are present, the default limit of 32 ports may 1312 need to be increased. 1313 1314config SERIAL_FSL_LPUART 1315 tristate "Freescale lpuart serial port support" 1316 depends on HAS_DMA 1317 select SERIAL_CORE 1318 help 1319 Support for the on-chip lpuart on some Freescale SOCs. 1320 1321config SERIAL_FSL_LPUART_CONSOLE 1322 bool "Console on Freescale lpuart serial port" 1323 depends on SERIAL_FSL_LPUART=y 1324 select SERIAL_CORE_CONSOLE 1325 select SERIAL_EARLYCON 1326 help 1327 If you have enabled the lpuart serial port on the Freescale SoCs, 1328 you can make it the console by answering Y to this option. 1329 1330config SERIAL_FSL_LINFLEXUART 1331 tristate "Freescale LINFlexD UART serial port support" 1332 depends on PRINTK 1333 select SERIAL_CORE 1334 help 1335 Support for the on-chip LINFlexD UART on some Freescale SOCs. 1336 1337config SERIAL_FSL_LINFLEXUART_CONSOLE 1338 bool "Console on Freescale LINFlexD UART serial port" 1339 depends on SERIAL_FSL_LINFLEXUART=y 1340 select SERIAL_CORE_CONSOLE 1341 select SERIAL_EARLYCON 1342 help 1343 If you have enabled the LINFlexD UART serial port on the Freescale 1344 SoCs, you can make it the console by answering Y to this option. 1345 1346config SERIAL_CONEXANT_DIGICOLOR 1347 tristate "Conexant Digicolor CX92xxx USART serial port support" 1348 depends on OF 1349 select SERIAL_CORE 1350 help 1351 Support for the on-chip USART on Conexant Digicolor SoCs. 1352 1353config SERIAL_CONEXANT_DIGICOLOR_CONSOLE 1354 bool "Console on Conexant Digicolor serial port" 1355 depends on SERIAL_CONEXANT_DIGICOLOR=y 1356 select SERIAL_CORE_CONSOLE 1357 help 1358 If you have enabled the USART serial port on Conexant Digicolor 1359 SoCs, you can make it the console by answering Y to this option. 1360 1361config SERIAL_ST_ASC 1362 tristate "ST ASC serial port support" 1363 select SERIAL_CORE 1364 depends on ARM || COMPILE_TEST 1365 help 1366 This driver is for the on-chip Asynchronous Serial Controller on 1367 STMicroelectronics STi SoCs. 1368 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality. 1369 It support all industry standard baud rates. 1370 1371 If unsure, say N. 1372 1373config SERIAL_ST_ASC_CONSOLE 1374 bool "Support for console on ST ASC" 1375 depends on SERIAL_ST_ASC=y 1376 select SERIAL_CORE_CONSOLE 1377 1378config SERIAL_MEN_Z135 1379 tristate "MEN 16z135 Support" 1380 select SERIAL_CORE 1381 depends on MCB 1382 help 1383 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core 1384 on a MCB carrier. 1385 1386 This driver can also be build as a module. If so, the module will be called 1387 men_z135_uart.ko 1388 1389config SERIAL_SPRD 1390 tristate "Support for Spreadtrum serial" 1391 select SERIAL_CORE 1392 depends on COMMON_CLK 1393 help 1394 This enables the driver for the Spreadtrum's serial. 1395 1396config SERIAL_SPRD_CONSOLE 1397 bool "Spreadtrum UART console support" 1398 depends on SERIAL_SPRD=y 1399 select SERIAL_CORE_CONSOLE 1400 select SERIAL_EARLYCON 1401 help 1402 Support for early debug console using Spreadtrum's serial. This enables 1403 the console before standard serial driver is probed. This is enabled 1404 with "earlycon" on the kernel command line. The console is 1405 enabled when early_param is processed. 1406 1407config SERIAL_STM32 1408 tristate "STMicroelectronics STM32 serial port support" 1409 select SERIAL_CORE 1410 depends on ARCH_STM32 || COMPILE_TEST 1411 select SERIAL_MCTRL_GPIO if GPIOLIB 1412 help 1413 This driver is for the on-chip Serial Controller on 1414 STMicroelectronics STM32 MCUs. 1415 USART supports Rx & Tx functionality. 1416 It support all industry standard baud rates. 1417 1418 If unsure, say N. 1419 1420config SERIAL_STM32_CONSOLE 1421 bool "Support for console on STM32" 1422 depends on SERIAL_STM32 1423 select SERIAL_CORE_CONSOLE 1424 select SERIAL_EARLYCON 1425 1426config SERIAL_MVEBU_UART 1427 bool "Marvell EBU serial port support" 1428 depends on ARCH_MVEBU || COMPILE_TEST 1429 depends on COMMON_CLK 1430 select SERIAL_CORE 1431 help 1432 This driver is for Marvell EBU SoC's UART. If you have a machine 1433 based on the Armada-3700 SoC and wish to use the on-board serial 1434 port, 1435 say 'Y' here. 1436 Otherwise, say 'N'. 1437 1438config SERIAL_MVEBU_CONSOLE 1439 bool "Console on Marvell EBU serial port" 1440 depends on SERIAL_MVEBU_UART 1441 select SERIAL_CORE_CONSOLE 1442 select SERIAL_EARLYCON 1443 default y 1444 help 1445 Say 'Y' here if you wish to use Armada-3700 UART as the system console. 1446 (the system console is the device which receives all kernel messages 1447 and warnings and which allows logins in single user mode) 1448 Otherwise, say 'N'. 1449 1450config SERIAL_OWL 1451 tristate "Actions Semi Owl serial port support" 1452 depends on ARCH_ACTIONS || COMPILE_TEST 1453 select SERIAL_CORE 1454 help 1455 This driver is for Actions Semiconductor S500/S900 SoC's UART. 1456 Say 'Y' here if you wish to use the on-board serial port. 1457 Otherwise, say 'N'. 1458 1459config SERIAL_OWL_CONSOLE 1460 bool "Console on Actions Semi Owl serial port" 1461 depends on SERIAL_OWL=y 1462 select SERIAL_CORE_CONSOLE 1463 select SERIAL_EARLYCON 1464 default y 1465 help 1466 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART 1467 as the system console. 1468 1469config SERIAL_RDA 1470 bool "RDA Micro serial port support" 1471 depends on ARCH_RDA || COMPILE_TEST 1472 select SERIAL_CORE 1473 help 1474 This driver is for RDA8810PL SoC's UART. 1475 Say 'Y' here if you wish to use the on-board serial port. 1476 Otherwise, say 'N'. 1477 1478config SERIAL_RDA_CONSOLE 1479 bool "Console on RDA Micro serial port" 1480 depends on SERIAL_RDA=y 1481 select SERIAL_CORE_CONSOLE 1482 select SERIAL_EARLYCON 1483 default y 1484 help 1485 Say 'Y' here if you wish to use the RDA8810PL UART as the system 1486 console. Only earlycon is implemented currently. 1487 1488config SERIAL_MILBEAUT_USIO 1489 tristate "Milbeaut USIO/UART serial port support" 1490 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF) 1491 default ARCH_MILBEAUT 1492 select SERIAL_CORE 1493 help 1494 This selects the USIO/UART IP found in Socionext Milbeaut SoCs. 1495 1496config SERIAL_MILBEAUT_USIO_PORTS 1497 int "Maximum number of CSIO/UART ports (1-8)" 1498 range 1 8 1499 depends on SERIAL_MILBEAUT_USIO 1500 default "4" 1501 1502config SERIAL_MILBEAUT_USIO_CONSOLE 1503 bool "Support for console on MILBEAUT USIO/UART serial port" 1504 depends on SERIAL_MILBEAUT_USIO=y 1505 default y 1506 select SERIAL_CORE_CONSOLE 1507 select SERIAL_EARLYCON 1508 help 1509 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut 1510 SoCs as the system console (the system console is the device which 1511 receives all kernel messages and warnings and which allows logins in 1512 single user mode). 1513 1514config SERIAL_LITEUART 1515 tristate "LiteUART serial port support" 1516 depends on HAS_IOMEM 1517 depends on OF 1518 depends on LITEX || COMPILE_TEST 1519 select SERIAL_CORE 1520 help 1521 This driver is for the FPGA-based LiteUART serial controller from LiteX 1522 SoC builder. 1523 1524 Say 'Y' or 'M' here if you wish to use the LiteUART serial controller. 1525 Otherwise, say 'N'. 1526 1527config SERIAL_LITEUART_MAX_PORTS 1528 int "Maximum number of LiteUART ports" 1529 depends on SERIAL_LITEUART 1530 default "1" 1531 help 1532 Set this to the maximum number of serial ports you want the driver 1533 to support. 1534 1535config SERIAL_LITEUART_CONSOLE 1536 bool "LiteUART serial port console support" 1537 depends on SERIAL_LITEUART=y 1538 select SERIAL_CORE_CONSOLE 1539 select SERIAL_EARLYCON 1540 help 1541 Say 'Y' or 'M' here if you wish to use the FPGA-based LiteUART serial 1542 controller from LiteX SoC builder as the system console 1543 (the system console is the device which receives all kernel messages 1544 and warnings and which allows logins in single user mode). 1545 Otherwise, say 'N'. 1546 1547config SERIAL_SUNPLUS 1548 tristate "Sunplus UART support" 1549 depends on ARCH_SUNPLUS || COMPILE_TEST 1550 select SERIAL_CORE 1551 help 1552 Select this option if you would like to use Sunplus serial port on 1553 Sunplus SoC SP7021. 1554 If you enable this option, Sunplus serial ports in the system will 1555 be registered as ttySUPx. 1556 This driver can also be built as a module. If so, the module will be 1557 called sunplus-uart. 1558 1559config SERIAL_SUNPLUS_CONSOLE 1560 bool "Console on Sunplus UART" 1561 depends on SERIAL_SUNPLUS 1562 select SERIAL_CORE_CONSOLE 1563 select SERIAL_EARLYCON 1564 help 1565 Select this option if you would like to use a Sunplus UART as the 1566 system console. 1567 Even if you say Y here, the currently visible virtual console 1568 (/dev/tty0) will still be used as the system console by default, but 1569 you can alter that using a kernel command line option such as 1570 "console=ttySUPx". 1571 1572config SERIAL_NUVOTON_MA35D1 1573 tristate "Nuvoton MA35D1 family UART support" 1574 depends on ARCH_MA35 || COMPILE_TEST 1575 select SERIAL_CORE 1576 help 1577 This driver supports Nuvoton MA35D1 family UART ports. If you would 1578 like to use them, you must answer Y or M to this option. Note that 1579 for use as console, it must be included in kernel and not as a 1580 module. If you enable this option, Ma35D1 serial ports in the system 1581 will be registered as ttyNVTx. 1582 1583config SERIAL_NUVOTON_MA35D1_CONSOLE 1584 bool "Console on a Nuvotn MA35D1 family UART port" 1585 depends on SERIAL_NUVOTON_MA35D1=y 1586 select SERIAL_CORE_CONSOLE 1587 help 1588 Select this options if you'd like to use the UART port0 of the 1589 Nuvoton MA35D1 family as a console. 1590 Even if you say Y here, the currently visible virtual console 1591 (/dev/tty0) will still be used as the system console by default, 1592 but you can alter that using a kernel command line option such as 1593 "console=ttyNVTx". 1594 1595endmenu 1596 1597config SERIAL_MCTRL_GPIO 1598 tristate 1599