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_AT91 || ARCH_LAN969X || 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 && TEGRA20_APB_DMA) || 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). This driver uses the APB DMA to achieve higher baudrate 265 and better performance. 266 267config SERIAL_TEGRA_TCU 268 tristate "NVIDIA Tegra Combined UART" 269 depends on MAILBOX 270 depends on (ARCH_TEGRA && TEGRA_HSP_MBOX) || COMPILE_TEST 271 select SERIAL_CORE 272 help 273 Support for the mailbox-based TCU (Tegra Combined UART) serial port. 274 TCU is a virtual serial port that allows multiplexing multiple data 275 streams into a single hardware serial port. 276 277config SERIAL_TEGRA_TCU_CONSOLE 278 bool "Support for console on a Tegra TCU serial port" 279 depends on SERIAL_TEGRA_TCU=y 280 select SERIAL_CORE_CONSOLE 281 default y 282 help 283 If you say Y here, it will be possible to use a the Tegra TCU as the 284 system console (the system console is the device which receives all 285 kernel messages and warnings and which allows logins in single user 286 mode). 287 288 If unsure, say Y. 289 290config SERIAL_TEGRA_UTC 291 tristate "NVIDIA Tegra UART Trace Controller" 292 depends on ARCH_TEGRA || COMPILE_TEST 293 select SERIAL_CORE 294 help 295 Support for Tegra UTC (UART Trace controller) client serial port. 296 297 UTC is a HW based serial port that allows multiplexing multiple data 298 streams of up to 16 UTC clients into a single hardware serial port. 299 300config SERIAL_TEGRA_UTC_CONSOLE 301 bool "Support for console on a Tegra UTC serial port" 302 depends on SERIAL_TEGRA_UTC 303 select SERIAL_CORE_CONSOLE 304 default SERIAL_TEGRA_UTC 305 help 306 If you say Y here, it will be possible to use a Tegra UTC client as 307 the system console (the system console is the device which receives 308 all kernel messages and warnings and which allows logins in single 309 user mode). 310 311 If unsure, say Y. 312 313config SERIAL_MAX3100 314 tristate "MAX3100/3110/3111/3222 support" 315 depends on SPI 316 select SERIAL_CORE 317 help 318 This selects support for an advanced UART from Maxim. 319 Supported ICs are MAX3100, MAX3110, MAX3111, MAX3222. 320 321 Say Y here if you want to support these ICs. 322 323config SERIAL_MAX310X 324 tristate "MAX310X support" 325 depends on SPI_MASTER 326 select SERIAL_CORE 327 select REGMAP_SPI if SPI_MASTER 328 select REGMAP_I2C if I2C 329 help 330 This selects support for an advanced UART from Maxim (Dallas). 331 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830. 332 Each IC contains 128 words each of receive and transmit FIFO 333 that can be controlled through I2C or high-speed SPI. 334 335 Say Y here if you want to support this ICs. 336 337config SERIAL_DZ 338 bool "DECstation DZ serial driver" 339 depends on MACH_DECSTATION && 32BIT 340 select SERIAL_CORE 341 default y 342 help 343 DZ11-family serial controllers for DECstations and VAXstations, 344 including the DC7085, M7814, and M7819. 345 346config SERIAL_DZ_CONSOLE 347 bool "Support console on DECstation DZ serial driver" 348 depends on SERIAL_DZ=y 349 select SERIAL_CORE_CONSOLE 350 default y 351 help 352 If you say Y here, it will be possible to use a serial port as the 353 system console (the system console is the device which receives all 354 kernel messages and warnings and which allows logins in single user 355 mode). 356 357 Note that the firmware uses ttyS3 as the serial console on 358 DECstations that use this driver. 359 360 If unsure, say Y. 361 362config SERIAL_ZS 363 tristate "DECstation Z85C30 serial support" 364 depends on MACH_DECSTATION 365 select SERIAL_CORE 366 default y 367 help 368 Support for the Zilog 85C350 serial communications controller used 369 for serial ports in newer DECstation systems. These include the 370 DECsystem 5900 and all models of the DECstation and DECsystem 5000 371 systems except from model 200. 372 373 If unsure, say Y. To compile this driver as a module, choose M here: 374 the module will be called zs. 375 376config SERIAL_ZS_CONSOLE 377 bool "Support for console on a DECstation Z85C30 serial port" 378 depends on SERIAL_ZS=y 379 select SERIAL_CORE_CONSOLE 380 default y 381 help 382 If you say Y here, it will be possible to use a serial port as the 383 system console (the system console is the device which receives all 384 kernel messages and warnings and which allows logins in single user 385 mode). 386 387 Note that the firmware uses ttyS1 as the serial console on the 388 Maxine and ttyS3 on the others using this driver. 389 390 If unsure, say Y. 391 392config SERIAL_21285 393 tristate "DC21285 serial port support" 394 depends on FOOTBRIDGE 395 select SERIAL_CORE 396 help 397 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/ 398 PCI bridge you can enable its onboard serial port by enabling this 399 option. 400 401config SERIAL_21285_CONSOLE 402 bool "Console on DC21285 serial port" 403 depends on SERIAL_21285=y 404 select SERIAL_CORE_CONSOLE 405 help 406 If you have enabled the serial port on the 21285 footbridge you can 407 make it the console by answering Y to this option. 408 409 Even if you say Y here, the currently visible virtual console 410 (/dev/tty0) will still be used as the system console by default, but 411 you can alter that using a kernel command line option such as 412 "console=ttyFB". (Try "man bootparam" or see the documentation of 413 your boot loader (lilo or loadlin) about how to pass options to the 414 kernel at boot time.) 415 416config SERIAL_PXA 417 bool "PXA serial port support (DEPRECATED)" 418 depends on ARCH_PXA || ARCH_MMP 419 select SERIAL_CORE 420 select SERIAL_8250_PXA if SERIAL_8250=y 421 select SERIAL_PXA_NON8250 if !SERIAL_8250=y 422 help 423 If you have a machine based on an Intel XScale PXA2xx CPU you 424 can enable its onboard serial ports by enabling this option. 425 426 Unless you have a specific need, you should use SERIAL_8250_PXA 427 instead of this. 428 429config SERIAL_PXA_NON8250 430 bool 431 depends on !SERIAL_8250 || COMPILE_TEST 432 433config SERIAL_PXA_CONSOLE 434 bool "Console on PXA serial port (DEPRECATED)" 435 depends on SERIAL_PXA 436 select SERIAL_CORE_CONSOLE 437 select SERIAL_8250_CONSOLE if SERIAL_8250=y 438 help 439 If you have enabled the serial port on the Intel XScale PXA 440 CPU you can make it the console by answering Y to this option. 441 442 Even if you say Y here, the currently visible virtual console 443 (/dev/tty0) will still be used as the system console by default, but 444 you can alter that using a kernel command line option such as 445 "console=ttySA0". (Try "man bootparam" or see the documentation of 446 your boot loader (lilo or loadlin) about how to pass options to the 447 kernel at boot time.) 448 449 Unless you have a specific need, you should use SERIAL_8250_PXA 450 and SERIAL_8250_CONSOLE instead of this. 451 452config SERIAL_SA1100 453 bool "SA1100 serial port support" 454 depends on ARCH_SA1100 455 select SERIAL_CORE 456 select SERIAL_MCTRL_GPIO if GPIOLIB 457 help 458 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you 459 can enable its onboard serial port by enabling this option. 460 Please read <file:Documentation/arch/arm/sa1100/serial_uart.rst> for 461 further info. 462 463config SERIAL_SA1100_CONSOLE 464 bool "Console on SA1100 serial port" 465 depends on SERIAL_SA1100 466 select SERIAL_CORE_CONSOLE 467 help 468 If you have enabled the serial port on the SA1100/SA1110 StrongARM 469 CPU you can make it the console by answering Y to this option. 470 471 Even if you say Y here, the currently visible virtual console 472 (/dev/tty0) will still be used as the system console by default, but 473 you can alter that using a kernel command line option such as 474 "console=ttySA0". (Try "man bootparam" or see the documentation of 475 your boot loader (lilo or loadlin) about how to pass options to the 476 kernel at boot time.) 477 478config SERIAL_IMX 479 tristate "IMX serial port support" 480 depends on ARCH_MXC || COMPILE_TEST 481 select SERIAL_CORE 482 select RATIONAL 483 select SERIAL_MCTRL_GPIO if GPIOLIB 484 help 485 If you have a machine based on a Motorola IMX CPU you 486 can enable its onboard serial port by enabling this option. 487 488config SERIAL_IMX_CONSOLE 489 tristate "Console on IMX serial port" 490 depends on SERIAL_IMX 491 select SERIAL_CORE_CONSOLE 492 help 493 If you have enabled the serial port on the Freescale IMX 494 CPU you can make it the console by answering Y/M to this option. 495 496 Even if you say Y/M here, the currently visible virtual console 497 (/dev/tty0) will still be used as the system console by default, but 498 you can alter that using a kernel command line option such as 499 "console=ttymxc0". (Try "man bootparam" or see the documentation of 500 your bootloader about how to pass options to the kernel at boot time.) 501 502config SERIAL_IMX_EARLYCON 503 bool "Earlycon on IMX serial port" 504 depends on ARCH_MXC || COMPILE_TEST 505 depends on OF 506 select SERIAL_CORE 507 select SERIAL_EARLYCON 508 select SERIAL_CORE_CONSOLE 509 default y if SERIAL_IMX_CONSOLE 510 help 511 If you have enabled the earlycon on the Freescale IMX 512 CPU you can make it the earlycon by answering Y to this option. 513 514config SERIAL_UARTLITE 515 tristate "Xilinx uartlite serial port support" 516 depends on HAS_IOMEM 517 select SERIAL_CORE 518 help 519 Say Y here if you want to use the Xilinx uartlite serial controller. 520 521 To compile this driver as a module, choose M here: the 522 module will be called uartlite. 523 524config SERIAL_UARTLITE_CONSOLE 525 bool "Support for console on Xilinx uartlite serial port" 526 depends on SERIAL_UARTLITE=y 527 select SERIAL_CORE_CONSOLE 528 select SERIAL_EARLYCON 529 help 530 Say Y here if you wish to use a Xilinx uartlite as the system 531 console (the system console is the device which receives all kernel 532 messages and warnings and which allows logins in single user mode). 533 534config SERIAL_UARTLITE_NR_UARTS 535 int "Maximum number of uartlite serial ports" 536 depends on SERIAL_UARTLITE 537 range 1 256 538 default 1 539 help 540 Set this to the number of uartlites in your system, or the number 541 you think you might implement. 542 If maximum number of uartlite serial ports is more than 4, then the 543 driver uses dynamic allocation instead of static allocation for major 544 number. 545 546config SERIAL_SUNCORE 547 bool 548 depends on SPARC 549 select SERIAL_CORE 550 select SERIAL_CORE_CONSOLE 551 default y 552 553config SERIAL_SUNZILOG 554 tristate "Sun Zilog8530 serial support" 555 depends on SPARC 556 help 557 This driver supports the Zilog8530 serial ports found on many Sparc 558 systems. Say Y or M if you want to be able to these serial ports. 559 560config SERIAL_SUNZILOG_CONSOLE 561 bool "Console on Sun Zilog8530 serial port" 562 depends on SERIAL_SUNZILOG=y 563 help 564 If you would like to be able to use the Zilog8530 serial port 565 on your Sparc system as the console, you can do so by answering 566 Y to this option. 567 568config SERIAL_SUNSU 569 tristate "Sun SU serial support" 570 depends on SPARC && PCI 571 help 572 This driver supports the 8250 serial ports that run the keyboard and 573 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able 574 to these serial ports. 575 576config SERIAL_SUNSU_CONSOLE 577 bool "Console on Sun SU serial port" 578 depends on SERIAL_SUNSU=y 579 help 580 If you would like to be able to use the SU serial port 581 on your Sparc system as the console, you can do so by answering 582 Y to this option. 583 584config SERIAL_MUX 585 tristate "Serial MUX support" 586 depends on GSC 587 select SERIAL_CORE 588 default y 589 help 590 Saying Y here will enable the hardware MUX serial driver for 591 the Nova, K class systems and D class with a 'remote control card'. 592 The hardware MUX is not 8250/16550 compatible therefore the 593 /dev/ttyB0 device is shared between the Serial MUX and the PDC 594 software console. The following steps need to be completed to use 595 the Serial MUX: 596 597 1. create the device entry (mknod /dev/ttyB0 c 11 0) 598 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 599 3. Add device ttyB0 to /etc/securetty (if you want to log on as 600 root on this console.) 601 4. Change the kernel command console parameter to: console=ttyB0 602 603config SERIAL_MUX_CONSOLE 604 bool "Support for console on serial MUX" 605 depends on SERIAL_MUX=y 606 select SERIAL_CORE_CONSOLE 607 default y 608 609config SERIAL_SUNSAB 610 tristate "Sun Siemens SAB82532 serial support" 611 depends on SPARC && PCI 612 help 613 This driver supports the Siemens SAB82532 DUSCC serial ports on newer 614 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these 615 serial ports. 616 617config SERIAL_SUNSAB_CONSOLE 618 bool "Console on Sun Siemens SAB82532 serial port" 619 depends on SERIAL_SUNSAB=y 620 help 621 If you would like to be able to use the SAB82532 serial port 622 on your Sparc system as the console, you can do so by answering 623 Y to this option. 624 625config SERIAL_SUNHV 626 bool "Sun4v Hypervisor Console support" 627 depends on SPARC64 628 help 629 This driver supports the console device found on SUN4V Sparc 630 systems. Say Y if you want to be able to use this device. 631 632config SERIAL_IP22_ZILOG 633 tristate "SGI Zilog8530 serial support" 634 depends on SGI_HAS_ZILOG 635 select SERIAL_CORE 636 help 637 This driver supports the Zilog8530 serial ports found on SGI 638 systems. Say Y or M if you want to be able to these serial ports. 639 640config SERIAL_IP22_ZILOG_CONSOLE 641 bool "Console on SGI Zilog8530 serial port" 642 depends on SERIAL_IP22_ZILOG=y 643 select SERIAL_CORE_CONSOLE 644 645config SERIAL_SH_SCI 646 tristate "SuperH SCI(F) serial port support" 647 depends on SUPERH || ARCH_RENESAS || COMPILE_TEST 648 select SERIAL_CORE 649 select SERIAL_MCTRL_GPIO if GPIOLIB 650 651config SERIAL_SH_SCI_NR_UARTS 652 int "Maximum number of SCI(F) serial ports" if EXPERT 653 range 1 64 if 64BIT 654 range 1 32 if !64BIT 655 depends on SERIAL_SH_SCI 656 default "10" if SUPERH 657 default "18" if ARCH_RENESAS 658 default "2" 659 660config SERIAL_SH_SCI_CONSOLE 661 bool "Support for console on SuperH SCI(F)" if EXPERT 662 depends on SERIAL_SH_SCI=y 663 select SERIAL_CORE_CONSOLE 664 default y 665 666config SERIAL_SH_SCI_EARLYCON 667 bool "Support for early console on SuperH SCI(F)" if EXPERT 668 depends on SERIAL_SH_SCI=y 669 select SERIAL_CORE_CONSOLE 670 select SERIAL_EARLYCON 671 default ARCH_RENESAS 672 673config SERIAL_SH_SCI_DMA 674 bool "DMA support" if EXPERT 675 depends on SERIAL_SH_SCI && DMA_ENGINE 676 default ARCH_RENESAS 677 678config SERIAL_HS_LPC32XX 679 tristate "LPC32XX high speed serial port support" 680 depends on ARCH_LPC32XX || COMPILE_TEST 681 depends on OF 682 select SERIAL_CORE 683 help 684 Support for the LPC32XX high speed serial ports (up to 900kbps). 685 Those are UARTs completely different from the Standard UARTs on the 686 LPC32XX SoC. 687 Choose M or Y here to build this driver. 688 689config SERIAL_HS_LPC32XX_CONSOLE 690 bool "Enable LPC32XX high speed UART serial console" 691 depends on SERIAL_HS_LPC32XX=y 692 select SERIAL_CORE_CONSOLE 693 help 694 If you would like to be able to use one of the high speed serial 695 ports on the LPC32XX as the console, you can do so by answering 696 Y to this option. 697 698config SERIAL_CORE 699 tristate 700 701config SERIAL_CORE_CONSOLE 702 bool 703 704config CONSOLE_POLL 705 bool 706 707config SERIAL_MCF 708 bool "Coldfire serial support" 709 depends on COLDFIRE 710 select SERIAL_CORE 711 help 712 This serial driver supports the Freescale Coldfire serial ports. 713 714config SERIAL_MCF_BAUDRATE 715 int "Default baudrate for Coldfire serial ports" 716 depends on SERIAL_MCF 717 default 19200 718 help 719 This setting lets you define what the default baudrate is for the 720 ColdFire serial ports. The usual default varies from board to board, 721 and this setting is a way of catering for that. 722 723config SERIAL_MCF_CONSOLE 724 bool "Coldfire serial console support" 725 depends on SERIAL_MCF 726 select SERIAL_CORE_CONSOLE 727 help 728 Enable a ColdFire internal serial port to be the system console. 729 730config SERIAL_PMACZILOG 731 tristate "Mac or PowerMac z85c30 ESCC support" 732 depends on (M68K && MAC) || PPC_PMAC 733 select SERIAL_CORE 734 help 735 This driver supports the Zilog z85C30 serial ports found on 736 (Power)Mac machines. 737 Say Y or M if you want to be able to these serial ports. 738 739config SERIAL_PMACZILOG_TTYS 740 bool "Use ttySn device nodes for Zilog z85c30" 741 depends on SERIAL_PMACZILOG 742 help 743 The pmac_zilog driver for the z85C30 chip on many powermacs 744 historically used the device numbers for /dev/ttySn. The 745 8250 serial port driver also uses these numbers, which means 746 the two drivers being unable to coexist; you could not use 747 both z85C30 and 8250 type ports at the same time. 748 749 If this option is not selected, the pmac_zilog driver will 750 use the device numbers allocated for /dev/ttyPZn. This allows 751 the pmac_zilog and 8250 drivers to co-exist, but may cause 752 existing userspace setups to break. Programs that need to 753 access the built-in serial ports on powermacs will need to 754 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn. 755 756 If you enable this option, any z85c30 ports in the system will 757 be registered as ttyS0 onwards as in the past, and you will be 758 unable to use the 8250 module for PCMCIA or other 16C550-style 759 UARTs. 760 761 Say N unless you need the z85c30 ports on your (Power)Mac 762 to appear as /dev/ttySn. 763 764config SERIAL_PMACZILOG_CONSOLE 765 bool "Console on Mac or PowerMac z85c30 serial port" 766 depends on SERIAL_PMACZILOG=y 767 select SERIAL_CORE_CONSOLE 768 help 769 If you would like to be able to use the z85c30 serial port 770 on your (Power)Mac as the console, you can do so by answering 771 Y to this option. 772 773config SERIAL_CPM 774 tristate "CPM SCC/SMC serial port support" 775 depends on CPM2 || CPM1 776 select SERIAL_CORE 777 help 778 This driver supports the SCC and SMC serial ports on Motorola 779 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx) 780 781config SERIAL_CPM_CONSOLE 782 bool "Support for console on CPM SCC/SMC serial port" 783 depends on SERIAL_CPM=y 784 select SERIAL_CORE_CONSOLE 785 help 786 Say Y here if you wish to use a SCC or SMC CPM UART as the system 787 console (the system console is the device which receives all kernel 788 messages and warnings and which allows logins in single user mode). 789 790 Even if you say Y here, the currently visible framebuffer console 791 (/dev/tty0) will still be used as the system console by default, but 792 you can alter that using a kernel command line option such as 793 "console=ttyCPM0". (Try "man bootparam" or see the documentation of 794 your boot loader (lilo or loadlin) about how to pass options to the 795 kernel at boot time.) 796 797config SERIAL_PIC32 798 tristate "Microchip PIC32 serial support" 799 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 800 select SERIAL_CORE 801 help 802 If you have a PIC32, this driver supports the serial ports. 803 804 Say Y or M to use PIC32 serial ports, otherwise say N. Note that 805 to use a serial port as a console, this must be included in kernel and 806 not as a module. 807 808config SERIAL_PIC32_CONSOLE 809 bool "PIC32 serial console support" 810 depends on SERIAL_PIC32=y 811 select SERIAL_CORE_CONSOLE 812 help 813 If you have a PIC32, this driver supports the putting a console on one 814 of the serial ports. 815 816 Say Y to use the PIC32 console, otherwise say N. 817 818config SERIAL_MPC52xx 819 tristate "Freescale MPC52xx/MPC512x family PSC serial support" 820 depends on PPC_MPC52xx || PPC_MPC512x 821 select SERIAL_CORE 822 help 823 This driver supports MPC52xx and MPC512x PSC serial ports. If you would 824 like to use them, you must answer Y or M to this option. Note that 825 for use as console, it must be included in kernel and not as a 826 module. 827 828config SERIAL_MPC52xx_CONSOLE 829 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port" 830 depends on SERIAL_MPC52xx=y 831 select SERIAL_CORE_CONSOLE 832 help 833 Select this options if you'd like to use one of the PSC serial port 834 of the Freescale MPC52xx family as a console. 835 836config SERIAL_MPC52xx_CONSOLE_BAUD 837 int "Freescale MPC52xx/MPC512x family PSC serial port baud" 838 depends on SERIAL_MPC52xx_CONSOLE=y 839 default "9600" 840 help 841 Select the MPC52xx console baud rate. 842 This value is only used if the bootloader doesn't pass in the 843 console baudrate 844 845config SERIAL_ICOM 846 tristate "IBM Multiport Serial Adapter" 847 depends on PCI 848 depends on PPC_PSERIES || COMPILE_TEST 849 select SERIAL_CORE 850 select FW_LOADER 851 help 852 This driver is for a family of multiport serial adapters 853 including 2 port RVX, 2 port internal modem, 4 port internal 854 modem and a split 1 port RVX and 1 port internal modem. 855 856 This driver can also be built as a module. If so, the module 857 will be called icom. 858 859config SERIAL_TXX9 860 bool "TMPTX39XX/49XX SIO support" 861 depends on HAS_TXX9_SERIAL 862 select SERIAL_CORE 863 default y 864 865config HAS_TXX9_SERIAL 866 bool 867 868config SERIAL_TXX9_NR_UARTS 869 int "Maximum number of TMPTX39XX/49XX SIO ports" 870 depends on SERIAL_TXX9 871 default "6" 872 873config SERIAL_TXX9_CONSOLE 874 bool "TMPTX39XX/49XX SIO Console support" 875 depends on SERIAL_TXX9=y 876 select SERIAL_CORE_CONSOLE 877 878config SERIAL_TXX9_STDSERIAL 879 bool "TX39XX/49XX SIO act as standard serial" 880 depends on !SERIAL_8250 && SERIAL_TXX9 881 882config SERIAL_JSM 883 tristate "Digi International NEO and Classic PCI Support" 884 depends on PCI && HAS_IOPORT 885 select SERIAL_CORE 886 help 887 This is a driver for Digi International's Neo and Classic series 888 of cards which provide multiple serial ports. You would need 889 something like this to connect more than two modems to your Linux 890 box, for instance in order to become a dial-in server. This driver 891 supports PCI boards only. 892 893 If you have a card like this, say Y here, otherwise say N. 894 895 To compile this driver as a module, choose M here: the 896 module will be called jsm. 897 898config SERIAL_MSM 899 tristate "MSM on-chip serial port support" 900 depends on ARCH_QCOM || COMPILE_TEST 901 select SERIAL_CORE 902 903config SERIAL_MSM_CONSOLE 904 bool "MSM serial console support" 905 depends on SERIAL_MSM=y 906 select SERIAL_CORE_CONSOLE 907 select SERIAL_EARLYCON 908 909config SERIAL_QCOM_GENI 910 tristate "QCOM on-chip GENI based serial port support" 911 depends on ARCH_QCOM || COMPILE_TEST 912 depends on QCOM_GENI_SE 913 select SERIAL_CORE 914 915config SERIAL_QCOM_GENI_CONSOLE 916 bool "QCOM GENI Serial Console support" 917 depends on SERIAL_QCOM_GENI 918 select SERIAL_CORE_CONSOLE 919 select SERIAL_EARLYCON 920 help 921 Serial console driver for Qualcomm Technologies Inc's GENI based 922 QUP hardware. 923 924config SERIAL_VT8500 925 bool "VIA VT8500 on-chip serial port support" 926 depends on ARCH_VT8500 || COMPILE_TEST 927 select SERIAL_CORE 928 929config SERIAL_VT8500_CONSOLE 930 bool "VIA VT8500 serial console support" 931 depends on SERIAL_VT8500=y 932 select SERIAL_CORE_CONSOLE 933 934config SERIAL_OMAP 935 tristate "OMAP serial port support" 936 depends on (ARCH_OMAP2PLUS && !SERIAL_8250_OMAP) || COMPILE_TEST 937 select SERIAL_CORE 938 help 939 If you have a machine based on an Texas Instruments OMAP CPU you 940 can enable its onboard serial ports by enabling this option. 941 942 By enabling this option you take advantage of dma feature available 943 with the omap-serial driver. DMA support can be enabled from platform 944 data. 945 946config SERIAL_OMAP_CONSOLE 947 bool "Console on OMAP serial port" 948 depends on SERIAL_OMAP=y 949 select SERIAL_CORE_CONSOLE 950 help 951 Select this option if you would like to use omap serial port as 952 console. 953 954 Even if you say Y here, the currently visible virtual console 955 (/dev/tty0) will still be used as the system console by default, but 956 you can alter that using a kernel command line option such as 957 "console=ttyOx". (Try "man bootparam" or see the documentation of 958 your boot loader about how to pass options to the kernel at 959 boot time.) 960 961config SERIAL_SIFIVE 962 tristate "SiFive UART support" 963 depends on OF 964 default ARCH_SIFIVE || ARCH_CANAAN 965 select SERIAL_CORE 966 help 967 Select this option if you are building a kernel for a device that 968 contains a SiFive UART IP block. This type of UART is present on 969 SiFive FU540 SoCs, among others. 970 971config SERIAL_SIFIVE_CONSOLE 972 bool "Console on SiFive UART" 973 depends on SERIAL_SIFIVE=y 974 default ARCH_SIFIVE || ARCH_CANAAN 975 select SERIAL_CORE_CONSOLE 976 select SERIAL_EARLYCON 977 help 978 Select this option if you would like to use a SiFive UART as the 979 system console. 980 981 Even if you say Y here, the currently visible virtual console 982 (/dev/tty0) will still be used as the system console by default, but 983 you can alter that using a kernel command line option such as 984 "console=ttySIFx". (Try "man bootparam" or see the documentation of 985 your boot loader about how to pass options to the kernel at 986 boot time.) 987 988config SERIAL_LANTIQ 989 tristate "Lantiq serial driver" 990 depends on (LANTIQ || X86) || COMPILE_TEST 991 select SERIAL_CORE 992 help 993 Support for UART on Lantiq and Intel SoCs. 994 To compile this driver as a module, select M here. The 995 module will be called lantiq. 996 997config SERIAL_LANTIQ_CONSOLE 998 bool "Console on Lantiq UART" 999 depends on SERIAL_LANTIQ=y 1000 select SERIAL_CORE_CONSOLE 1001 select SERIAL_EARLYCON 1002 help 1003 Select this option if you would like to use a Lantiq UART as the 1004 system console. 1005 1006config SERIAL_QE 1007 tristate "Freescale QUICC Engine serial port support" 1008 depends on QUICC_ENGINE 1009 select SERIAL_CORE 1010 select FW_LOADER 1011 help 1012 This driver supports the QE serial ports on Freescale embedded 1013 PowerPC that contain a QUICC Engine. 1014 1015config SERIAL_SCCNXP 1016 tristate "SCCNXP serial port support" 1017 select SERIAL_CORE 1018 help 1019 This selects support for an advanced UART from NXP (Philips). 1020 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92, 1021 SC28L202, SCC68681 and SCC68692. 1022 1023config SERIAL_SCCNXP_CONSOLE 1024 bool "Console on SCCNXP serial port" 1025 depends on SERIAL_SCCNXP=y 1026 select SERIAL_CORE_CONSOLE 1027 help 1028 Support for console on SCCNXP serial ports. 1029 1030config SERIAL_SC16IS7XX 1031 tristate "NXP SC16IS7xx UART support" 1032 depends on SPI_MASTER || I2C 1033 select SERIAL_CORE 1034 select SERIAL_SC16IS7XX_SPI if SPI_MASTER 1035 select SERIAL_SC16IS7XX_I2C if I2C 1036 help 1037 Core driver for NXP SC16IS7xx UARTs. 1038 Supported ICs are: 1039 1040 SC16IS740 1041 SC16IS741 1042 SC16IS750 1043 SC16IS752 1044 SC16IS760 1045 SC16IS762 1046 1047 The driver supports both I2C and SPI interfaces. 1048 1049config SERIAL_SC16IS7XX_I2C 1050 tristate 1051 select REGMAP_I2C 1052 1053config SERIAL_SC16IS7XX_SPI 1054 tristate 1055 select REGMAP_SPI 1056 1057config SERIAL_TIMBERDALE 1058 tristate "Support for timberdale UART" 1059 select SERIAL_CORE 1060 depends on X86_32 || COMPILE_TEST 1061 help 1062 Add support for UART controller on timberdale. 1063 1064config SERIAL_BCM63XX 1065 tristate "Broadcom BCM63xx/BCM33xx UART support" 1066 select SERIAL_CORE 1067 depends on ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST 1068 default ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC 1069 help 1070 This enables the driver for the onchip UART core found on 1071 the following chipsets: 1072 1073 BCM33xx (cable modem) 1074 BCM63xx/BCM63xxx (DSL) 1075 BCM68xx (PON) 1076 BCM7xxx (STB) - DOCSIS console 1077 1078config SERIAL_BCM63XX_CONSOLE 1079 bool "Console on BCM63xx serial port" 1080 depends on SERIAL_BCM63XX=y 1081 select SERIAL_CORE_CONSOLE 1082 select SERIAL_EARLYCON 1083 help 1084 If you have enabled the serial port on the BCM63xx CPU 1085 you can make it the console by answering Y to this option. 1086 1087config SERIAL_GRLIB_GAISLER_APBUART 1088 tristate "GRLIB APBUART serial support" 1089 depends on OF && SPARC 1090 select SERIAL_CORE 1091 help 1092 Add support for the GRLIB APBUART serial port. 1093 1094config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE 1095 bool "Console on GRLIB APBUART serial port" 1096 depends on SERIAL_GRLIB_GAISLER_APBUART=y 1097 select SERIAL_CORE_CONSOLE 1098 help 1099 Support for running a console on the GRLIB APBUART 1100 1101config SERIAL_ALTERA_JTAGUART 1102 tristate "Altera JTAG UART support" 1103 select SERIAL_CORE 1104 help 1105 This driver supports the Altera JTAG UART port. 1106 1107config SERIAL_ALTERA_JTAGUART_CONSOLE 1108 bool "Altera JTAG UART console support" 1109 depends on SERIAL_ALTERA_JTAGUART=y 1110 select SERIAL_CORE_CONSOLE 1111 select SERIAL_EARLYCON 1112 help 1113 Enable a Altera JTAG UART port to be the system console. 1114 1115config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS 1116 bool "Bypass output when no connection" 1117 depends on SERIAL_ALTERA_JTAGUART_CONSOLE 1118 select SERIAL_CORE_CONSOLE 1119 help 1120 Bypass console output and keep going even if there is no 1121 JTAG terminal connection with the host. 1122 1123config SERIAL_ALTERA_UART 1124 tristate "Altera UART support" 1125 select SERIAL_CORE 1126 help 1127 This driver supports the Altera softcore UART port. 1128 1129config SERIAL_ALTERA_UART_MAXPORTS 1130 int "Maximum number of Altera UART ports" 1131 depends on SERIAL_ALTERA_UART 1132 default 4 1133 help 1134 This setting lets you define the maximum number of the Altera 1135 UART ports. The usual default varies from board to board, and 1136 this setting is a way of catering for that. 1137 1138config SERIAL_ALTERA_UART_BAUDRATE 1139 int "Default baudrate for Altera UART ports" 1140 depends on SERIAL_ALTERA_UART 1141 default 115200 1142 help 1143 This setting lets you define what the default baudrate is for the 1144 Altera UART ports. The usual default varies from board to board, 1145 and this setting is a way of catering for that. 1146 1147config SERIAL_ALTERA_UART_CONSOLE 1148 bool "Altera UART console support" 1149 depends on SERIAL_ALTERA_UART=y 1150 select SERIAL_CORE_CONSOLE 1151 select SERIAL_EARLYCON 1152 help 1153 Enable a Altera UART port to be the system console. 1154 1155config SERIAL_PCH_UART 1156 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART" 1157 depends on PCI && (X86_32 || MIPS || COMPILE_TEST) 1158 select SERIAL_CORE 1159 help 1160 This driver is for PCH(Platform controller Hub) UART of Intel EG20T 1161 which is an IOH(Input/Output Hub) for x86 embedded processor. 1162 Enabling PCH_DMA, this PCH UART works as DMA mode. 1163 1164 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1165 Output Hub), ML7213, ML7223 and ML7831. 1166 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 1167 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 1168 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1169 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1170 1171config SERIAL_PCH_UART_CONSOLE 1172 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH" 1173 depends on SERIAL_PCH_UART=y 1174 select SERIAL_CORE_CONSOLE 1175 help 1176 Say Y here if you wish to use the PCH UART as the system console 1177 (the system console is the device which receives all kernel messages and 1178 warnings and which allows logins in single user mode). 1179 1180config SERIAL_MXS_AUART 1181 tristate "MXS AUART support" 1182 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST 1183 select SERIAL_CORE 1184 select SERIAL_MCTRL_GPIO if GPIOLIB 1185 help 1186 This driver supports the MXS and Alphascale ASM9260 Application 1187 UART (AUART) port. 1188 1189config SERIAL_MXS_AUART_CONSOLE 1190 bool "MXS AUART console support" 1191 depends on SERIAL_MXS_AUART=y 1192 select SERIAL_CORE_CONSOLE 1193 help 1194 Enable a MXS AUART port to be the system console. 1195 1196config SERIAL_XILINX_PS_UART 1197 tristate "Cadence (Xilinx Zynq) UART support" 1198 depends on OF 1199 select SERIAL_CORE 1200 help 1201 This driver supports the Cadence UART. It is found e.g. in Xilinx 1202 Zynq. 1203 1204config SERIAL_XILINX_PS_UART_CONSOLE 1205 bool "Cadence UART console support" 1206 depends on SERIAL_XILINX_PS_UART=y 1207 select SERIAL_CORE_CONSOLE 1208 select SERIAL_EARLYCON 1209 help 1210 Enable a Cadence UART port to be the system console. 1211 1212config SERIAL_AR933X 1213 tristate "AR933X serial port support" 1214 depends on (HAVE_CLK && ATH79) || (MIPS && COMPILE_TEST) 1215 select SERIAL_CORE 1216 select SERIAL_MCTRL_GPIO if GPIOLIB 1217 help 1218 If you have an Atheros AR933X SOC based board and want to use the 1219 built-in UART of the SoC, say Y to this option. 1220 1221 To compile this driver as a module, choose M here: the 1222 module will be called ar933x_uart. 1223 1224config SERIAL_AR933X_CONSOLE 1225 bool "Console on AR933X serial port" 1226 depends on SERIAL_AR933X=y 1227 select SERIAL_CORE_CONSOLE 1228 help 1229 Enable a built-in UART port of the AR933X to be the system console. 1230 1231config SERIAL_AR933X_NR_UARTS 1232 int "Maximum number of AR933X serial ports" 1233 depends on SERIAL_AR933X 1234 default "2" 1235 help 1236 Set this to the number of serial ports you want the driver 1237 to support. 1238 1239config SERIAL_MPS2_UART_CONSOLE 1240 bool "MPS2 UART console support" 1241 depends on SERIAL_MPS2_UART 1242 select SERIAL_CORE_CONSOLE 1243 select SERIAL_EARLYCON 1244 1245config SERIAL_MPS2_UART 1246 bool "MPS2 UART port" 1247 depends on ARCH_MPS2 || COMPILE_TEST 1248 select SERIAL_CORE 1249 help 1250 This driver support the UART ports on ARM MPS2. 1251 1252config SERIAL_ARC 1253 tristate "ARC UART driver support" 1254 select SERIAL_CORE 1255 help 1256 Driver for on-chip UART for ARC(Synopsys) for the legacy 1257 FPGA Boards (ML50x/ARCAngel4) 1258 1259config SERIAL_ARC_CONSOLE 1260 bool "Console on ARC UART" 1261 depends on SERIAL_ARC=y 1262 select SERIAL_CORE_CONSOLE 1263 select SERIAL_EARLYCON 1264 help 1265 Enable system Console on ARC UART 1266 1267config SERIAL_ARC_NR_PORTS 1268 int "Number of ARC UART ports" 1269 depends on SERIAL_ARC 1270 range 1 3 1271 default "1" 1272 help 1273 Set this to the number of serial ports you want the driver 1274 to support. 1275 1276config SERIAL_RP2 1277 tristate "Comtrol RocketPort EXPRESS/INFINITY support" 1278 depends on PCI 1279 select SERIAL_CORE 1280 help 1281 This driver supports the Comtrol RocketPort EXPRESS and 1282 RocketPort INFINITY families of PCI/PCIe multiport serial adapters. 1283 These adapters use a "RocketPort 2" ASIC that is not compatible 1284 with the original RocketPort driver (CONFIG_ROCKETPORT). 1285 1286 To compile this driver as a module, choose M here: the 1287 module will be called rp2. 1288 1289 If you want to compile this driver into the kernel, say Y here. If 1290 you don't have a suitable RocketPort card installed, say N. 1291 1292config SERIAL_RP2_NR_UARTS 1293 int "Maximum number of RocketPort EXPRESS/INFINITY ports" 1294 depends on SERIAL_RP2 1295 default "32" 1296 help 1297 If multiple cards are present, the default limit of 32 ports may 1298 need to be increased. 1299 1300config SERIAL_FSL_LPUART 1301 tristate "Freescale lpuart serial port support" 1302 depends on HAS_DMA 1303 select SERIAL_CORE 1304 help 1305 Support for the on-chip lpuart on some Freescale SOCs. 1306 1307config SERIAL_FSL_LPUART_CONSOLE 1308 bool "Console on Freescale lpuart serial port" 1309 depends on SERIAL_FSL_LPUART=y 1310 select SERIAL_CORE_CONSOLE 1311 select SERIAL_EARLYCON 1312 help 1313 If you have enabled the lpuart serial port on the Freescale SoCs, 1314 you can make it the console by answering Y to this option. 1315 1316config SERIAL_FSL_LINFLEXUART 1317 tristate "Freescale LINFlexD UART serial port support" 1318 depends on PRINTK 1319 select SERIAL_CORE 1320 help 1321 Support for the on-chip LINFlexD UART on some Freescale SOCs. 1322 1323config SERIAL_FSL_LINFLEXUART_CONSOLE 1324 bool "Console on Freescale LINFlexD UART serial port" 1325 depends on SERIAL_FSL_LINFLEXUART=y 1326 select SERIAL_CORE_CONSOLE 1327 select SERIAL_EARLYCON 1328 help 1329 If you have enabled the LINFlexD UART serial port on the Freescale 1330 SoCs, you can make it the console by answering Y to this option. 1331 1332config SERIAL_CONEXANT_DIGICOLOR 1333 tristate "Conexant Digicolor CX92xxx USART serial port support" 1334 depends on OF 1335 select SERIAL_CORE 1336 help 1337 Support for the on-chip USART on Conexant Digicolor SoCs. 1338 1339config SERIAL_CONEXANT_DIGICOLOR_CONSOLE 1340 bool "Console on Conexant Digicolor serial port" 1341 depends on SERIAL_CONEXANT_DIGICOLOR=y 1342 select SERIAL_CORE_CONSOLE 1343 help 1344 If you have enabled the USART serial port on Conexant Digicolor 1345 SoCs, you can make it the console by answering Y to this option. 1346 1347config SERIAL_ST_ASC 1348 tristate "ST ASC serial port support" 1349 select SERIAL_CORE 1350 depends on ARM || COMPILE_TEST 1351 help 1352 This driver is for the on-chip Asynchronous Serial Controller on 1353 STMicroelectronics STi SoCs. 1354 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality. 1355 It support all industry standard baud rates. 1356 1357 If unsure, say N. 1358 1359config SERIAL_ST_ASC_CONSOLE 1360 bool "Support for console on ST ASC" 1361 depends on SERIAL_ST_ASC=y 1362 select SERIAL_CORE_CONSOLE 1363 1364config SERIAL_MEN_Z135 1365 tristate "MEN 16z135 Support" 1366 select SERIAL_CORE 1367 depends on MCB 1368 help 1369 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core 1370 on a MCB carrier. 1371 1372 This driver can also be build as a module. If so, the module will be called 1373 men_z135_uart.ko 1374 1375config SERIAL_SPRD 1376 tristate "Support for Spreadtrum serial" 1377 select SERIAL_CORE 1378 depends on COMMON_CLK 1379 help 1380 This enables the driver for the Spreadtrum's serial. 1381 1382config SERIAL_SPRD_CONSOLE 1383 bool "Spreadtrum UART console support" 1384 depends on SERIAL_SPRD=y 1385 select SERIAL_CORE_CONSOLE 1386 select SERIAL_EARLYCON 1387 help 1388 Support for early debug console using Spreadtrum's serial. This enables 1389 the console before standard serial driver is probed. This is enabled 1390 with "earlycon" on the kernel command line. The console is 1391 enabled when early_param is processed. 1392 1393config SERIAL_STM32 1394 tristate "STMicroelectronics STM32 serial port support" 1395 select SERIAL_CORE 1396 depends on ARCH_STM32 || COMPILE_TEST 1397 select SERIAL_MCTRL_GPIO if GPIOLIB 1398 help 1399 This driver is for the on-chip Serial Controller on 1400 STMicroelectronics STM32 MCUs. 1401 USART supports Rx & Tx functionality. 1402 It support all industry standard baud rates. 1403 1404 If unsure, say N. 1405 1406config SERIAL_STM32_CONSOLE 1407 bool "Support for console on STM32" 1408 depends on SERIAL_STM32=y 1409 select SERIAL_CORE_CONSOLE 1410 select SERIAL_EARLYCON 1411 1412config SERIAL_MVEBU_UART 1413 bool "Marvell EBU serial port support" 1414 depends on ARCH_MVEBU || COMPILE_TEST 1415 depends on COMMON_CLK 1416 select SERIAL_CORE 1417 help 1418 This driver is for Marvell EBU SoC's UART. If you have a machine 1419 based on the Armada-3700 SoC and wish to use the on-board serial 1420 port, 1421 say 'Y' here. 1422 Otherwise, say 'N'. 1423 1424config SERIAL_MVEBU_CONSOLE 1425 bool "Console on Marvell EBU serial port" 1426 depends on SERIAL_MVEBU_UART 1427 select SERIAL_CORE_CONSOLE 1428 select SERIAL_EARLYCON 1429 default y 1430 help 1431 Say 'Y' here if you wish to use Armada-3700 UART as the system console. 1432 (the system console is the device which receives all kernel messages 1433 and warnings and which allows logins in single user mode) 1434 Otherwise, say 'N'. 1435 1436config SERIAL_OWL 1437 tristate "Actions Semi Owl serial port support" 1438 depends on ARCH_ACTIONS || COMPILE_TEST 1439 select SERIAL_CORE 1440 help 1441 This driver is for Actions Semiconductor S500/S900 SoC's UART. 1442 Say 'Y' here if you wish to use the on-board serial port. 1443 Otherwise, say 'N'. 1444 1445config SERIAL_OWL_CONSOLE 1446 bool "Console on Actions Semi Owl serial port" 1447 depends on SERIAL_OWL=y 1448 select SERIAL_CORE_CONSOLE 1449 select SERIAL_EARLYCON 1450 default y 1451 help 1452 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART 1453 as the system console. 1454 1455config SERIAL_RDA 1456 bool "RDA Micro serial port support" 1457 depends on ARCH_RDA || COMPILE_TEST 1458 select SERIAL_CORE 1459 help 1460 This driver is for RDA8810PL SoC's UART. 1461 Say 'Y' here if you wish to use the on-board serial port. 1462 Otherwise, say 'N'. 1463 1464config SERIAL_RDA_CONSOLE 1465 bool "Console on RDA Micro serial port" 1466 depends on SERIAL_RDA=y 1467 select SERIAL_CORE_CONSOLE 1468 select SERIAL_EARLYCON 1469 default y 1470 help 1471 Say 'Y' here if you wish to use the RDA8810PL UART as the system 1472 console. Only earlycon is implemented currently. 1473 1474config SERIAL_MILBEAUT_USIO 1475 tristate "Milbeaut USIO/UART serial port support" 1476 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF) 1477 default ARCH_MILBEAUT 1478 select SERIAL_CORE 1479 help 1480 This selects the USIO/UART IP found in Socionext Milbeaut SoCs. 1481 1482config SERIAL_MILBEAUT_USIO_PORTS 1483 int "Maximum number of CSIO/UART ports (1-8)" 1484 range 1 8 1485 depends on SERIAL_MILBEAUT_USIO 1486 default "4" 1487 1488config SERIAL_MILBEAUT_USIO_CONSOLE 1489 bool "Support for console on MILBEAUT USIO/UART serial port" 1490 depends on SERIAL_MILBEAUT_USIO=y 1491 default y 1492 select SERIAL_CORE_CONSOLE 1493 select SERIAL_EARLYCON 1494 help 1495 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut 1496 SoCs as the system console (the system console is the device which 1497 receives all kernel messages and warnings and which allows logins in 1498 single user mode). 1499 1500config SERIAL_LITEUART 1501 tristate "LiteUART serial port support" 1502 depends on HAS_IOMEM 1503 depends on OF 1504 depends on LITEX || COMPILE_TEST 1505 select SERIAL_CORE 1506 help 1507 This driver is for the FPGA-based LiteUART serial controller from LiteX 1508 SoC builder. 1509 1510 Say 'Y' or 'M' here if you wish to use the LiteUART serial controller. 1511 Otherwise, say 'N'. 1512 1513config SERIAL_LITEUART_MAX_PORTS 1514 int "Maximum number of LiteUART ports" 1515 depends on SERIAL_LITEUART 1516 default "1" 1517 help 1518 Set this to the maximum number of serial ports you want the driver 1519 to support. 1520 1521config SERIAL_LITEUART_CONSOLE 1522 bool "LiteUART serial port console support" 1523 depends on SERIAL_LITEUART=y 1524 select SERIAL_CORE_CONSOLE 1525 select SERIAL_EARLYCON 1526 help 1527 Say 'Y' or 'M' here if you wish to use the FPGA-based LiteUART serial 1528 controller from LiteX SoC builder as the system console 1529 (the system console is the device which receives all kernel messages 1530 and warnings and which allows logins in single user mode). 1531 Otherwise, say 'N'. 1532 1533config SERIAL_SUNPLUS 1534 tristate "Sunplus UART support" 1535 depends on ARCH_SUNPLUS || COMPILE_TEST 1536 select SERIAL_CORE 1537 help 1538 Select this option if you would like to use Sunplus serial port on 1539 Sunplus SoC SP7021. 1540 If you enable this option, Sunplus serial ports in the system will 1541 be registered as ttySUPx. 1542 This driver can also be built as a module. If so, the module will be 1543 called sunplus-uart. 1544 1545config SERIAL_SUNPLUS_CONSOLE 1546 bool "Console on Sunplus UART" 1547 depends on SERIAL_SUNPLUS 1548 select SERIAL_CORE_CONSOLE 1549 select SERIAL_EARLYCON 1550 help 1551 Select this option if you would like to use a Sunplus UART as the 1552 system console. 1553 Even if you say Y here, the currently visible virtual console 1554 (/dev/tty0) will still be used as the system console by default, but 1555 you can alter that using a kernel command line option such as 1556 "console=ttySUPx". 1557 1558config SERIAL_NUVOTON_MA35D1 1559 tristate "Nuvoton MA35D1 family UART support" 1560 depends on ARCH_MA35 || COMPILE_TEST 1561 select SERIAL_CORE 1562 help 1563 This driver supports Nuvoton MA35D1 family UART ports. If you would 1564 like to use them, you must answer Y or M to this option. Note that 1565 for use as console, it must be included in kernel and not as a 1566 module. If you enable this option, Ma35D1 serial ports in the system 1567 will be registered as ttyNVTx. 1568 1569config SERIAL_NUVOTON_MA35D1_CONSOLE 1570 bool "Console on a Nuvotn MA35D1 family UART port" 1571 depends on SERIAL_NUVOTON_MA35D1=y 1572 select SERIAL_CORE_CONSOLE 1573 help 1574 Select this options if you'd like to use the UART port0 of the 1575 Nuvoton MA35D1 family as a console. 1576 Even if you say Y here, the currently visible virtual console 1577 (/dev/tty0) will still be used as the system console by default, 1578 but you can alter that using a kernel command line option such as 1579 "console=ttyNVTx". 1580 1581config SERIAL_ESP32 1582 tristate "Espressif ESP32 UART support" 1583 depends on XTENSA_PLATFORM_ESP32 || (COMPILE_TEST && OF) 1584 select SERIAL_CORE 1585 select SERIAL_CORE_CONSOLE 1586 select SERIAL_EARLYCON 1587 help 1588 Driver for the UART controllers of the Espressif ESP32xx SoCs. 1589 When earlycon option is enabled the following kernel command line 1590 snippets may be used: 1591 earlycon=esp32s3uart,mmio32,0x60000000,115200n8,40000000 1592 earlycon=esp32uart,mmio32,0x3ff40000,115200n8 1593 1594config SERIAL_ESP32_ACM 1595 tristate "Espressif ESP32 USB ACM gadget support" 1596 depends on XTENSA_PLATFORM_ESP32 || (COMPILE_TEST && OF) 1597 select SERIAL_CORE 1598 select SERIAL_CORE_CONSOLE 1599 select SERIAL_EARLYCON 1600 help 1601 Driver for the CDC ACM gadget controller of the Espressif ESP32S3 1602 SoCs that share separate USB controller with the JTAG adapter. 1603 When earlycon option is enabled the following kernel command line 1604 snippet may be used: 1605 earlycon=esp32s3acm,mmio32,0x60038000 1606 1607endmenu 1608 1609config SERIAL_MCTRL_GPIO 1610 tristate 1611