Kconfig (51607B)
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_ARM_SEMIHOST 77 bool "Early console using ARM semihosting" 78 depends on ARM64 || ARM 79 select SERIAL_CORE 80 select SERIAL_CORE_CONSOLE 81 select SERIAL_EARLYCON 82 help 83 Support for early debug console using ARM semihosting. This enables 84 the console before standard serial driver is probed. This is enabled 85 with "earlycon=smh" on the kernel command line. The console is 86 enabled when early_param is processed. 87 88config SERIAL_EARLYCON_RISCV_SBI 89 bool "Early console using RISC-V SBI" 90 depends on RISCV_SBI_V01 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 ARCH_AT91 || COMPILE_TEST 131 select SERIAL_CORE 132 select SERIAL_MCTRL_GPIO if GPIOLIB 133 select MFD_AT91_USART 134 help 135 This enables the driver for the on-chip UARTs of the Atmel 136 AT91 processors. 137 138config SERIAL_ATMEL_CONSOLE 139 bool "Support for console on AT91 serial port" 140 depends on SERIAL_ATMEL=y 141 select SERIAL_CORE_CONSOLE 142 select SERIAL_EARLYCON 143 help 144 Say Y here if you wish to use an on-chip UART on a Atmel 145 AT91 processor as the system console (the system 146 console is the device which receives all kernel messages and 147 warnings and which allows logins in single user mode). 148 149config SERIAL_ATMEL_PDC 150 bool "Support DMA transfers on AT91 serial port" 151 depends on SERIAL_ATMEL 152 default y 153 help 154 Say Y here if you wish to use the PDC to do DMA transfers to 155 and from the Atmel AT91 serial port. In order to 156 actually use DMA transfers, make sure that the use_dma_tx 157 and use_dma_rx members in the atmel_uart_data struct is set 158 appropriately for each port. 159 160 Note that break and error handling currently doesn't work 161 properly when DMA is enabled. Make sure that ports where 162 this matters don't use DMA. 163 164config SERIAL_ATMEL_TTYAT 165 bool "Install as device ttyATn instead of ttySn" 166 depends on SERIAL_ATMEL=y 167 help 168 Say Y here if you wish to have the internal AT91 UARTs 169 appear as /dev/ttyATn (major 204, minor starting at 154) 170 instead of the normal /dev/ttySn (major 4, minor starting at 171 64). This is necessary if you also want other UARTs, such as 172 external 8250/16C550 compatible UARTs. 173 The ttySn nodes are legally reserved for the 8250 serial driver 174 but are often misused by other serial drivers. 175 176 To use this, you should create suitable ttyATn device nodes in 177 /dev/, and pass "console=ttyATn" to the kernel. 178 179 Say Y if you have an external 8250/16C550 UART. If unsure, say N. 180 181config SERIAL_KGDB_NMI 182 bool "Serial console over KGDB NMI debugger port" 183 depends on KGDB_SERIAL_CONSOLE 184 help 185 This special driver allows you to temporary use NMI debugger port 186 as a normal console (assuming that the port is attached to KGDB). 187 188 Unlike KDB's disable_nmi command, with this driver you are always 189 able to go back to the debugger using KGDB escape sequence ($3#33). 190 This is because this console driver processes the input in NMI 191 context, and thus is able to intercept the magic sequence. 192 193 Note that since the console interprets input and uses polling 194 communication methods, for things like PPP you still must fully 195 detach debugger port from the KGDB NMI (i.e. disable_nmi), and 196 use raw console. 197 198 If unsure, say N. 199 200config SERIAL_MESON 201 tristate "Meson serial port support" 202 depends on ARCH_MESON || COMPILE_TEST 203 select SERIAL_CORE 204 help 205 This enables the driver for the on-chip UARTs of the Amlogic 206 MesonX processors. 207 208config SERIAL_MESON_CONSOLE 209 bool "Support for console on meson" 210 depends on SERIAL_MESON 211 select SERIAL_CORE_CONSOLE 212 select SERIAL_EARLYCON 213 help 214 Say Y here if you wish to use a Amlogic MesonX UART as the 215 system console (the system console is the device which 216 receives all kernel messages and warnings and which allows 217 logins in single user mode) as /dev/ttyAMLx. 218 219config SERIAL_CLPS711X 220 tristate "CLPS711X serial port support" 221 depends on ARCH_CLPS711X || COMPILE_TEST 222 select SERIAL_CORE 223 select SERIAL_MCTRL_GPIO if GPIOLIB 224 help 225 This enables the driver for the on-chip UARTs of the Cirrus 226 Logic EP711x/EP721x/EP731x processors. 227 228config SERIAL_CLPS711X_CONSOLE 229 bool "Support for console on CLPS711X serial port" 230 depends on SERIAL_CLPS711X=y 231 select SERIAL_CORE_CONSOLE 232 help 233 Even if you say Y here, the currently visible virtual console 234 (/dev/tty0) will still be used as the system console by default, but 235 you can alter that using a kernel command line option such as 236 "console=ttyCL1". 237 238config SERIAL_SAMSUNG 239 tristate "Samsung SoC serial support" 240 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || ARCH_APPLE || ARCH_ARTPEC || COMPILE_TEST 241 select SERIAL_CORE 242 help 243 Support for the on-chip UARTs on the Samsung 244 S3C24xx/S3C64xx/S5Pv210/Exynos and Apple M1 SoCs, providing 245 /dev/ttySAC0, 1 and 2 (note, some machines may not provide all of 246 these ports, depending on how the serial port pins are configured. 247 Choose Y/M here only if you build for such SoC. 248 249config SERIAL_SAMSUNG_UARTS_4 250 bool 251 depends on SERIAL_SAMSUNG 252 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442) 253 help 254 Internal node for the common case of 4 Samsung compatible UARTs 255 256config SERIAL_SAMSUNG_UARTS 257 int 258 depends on SERIAL_SAMSUNG 259 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416 260 default 3 261 help 262 Select the number of available UART ports for the Samsung S3C 263 serial driver 264 265config SERIAL_SAMSUNG_CONSOLE 266 bool "Support for console on Samsung SoC serial port" 267 depends on SERIAL_SAMSUNG 268 select SERIAL_CORE_CONSOLE 269 select SERIAL_EARLYCON 270 help 271 Allow selection of the S3C24XX on-board serial ports for use as 272 an virtual console. 273 274 Even if you say Y here, the currently visible virtual console 275 (/dev/tty0) will still be used as the system console by default, but 276 you can alter that using a kernel command line option such as 277 "console=ttySACx". (Try "man bootparam" or see the documentation of 278 your boot loader about how to pass options to the kernel at 279 boot time.) 280 281config SERIAL_TEGRA 282 tristate "NVIDIA Tegra20/30 SoC serial controller" 283 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 284 select SERIAL_CORE 285 help 286 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs 287 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not 288 provide all of these ports, depending on how the serial port 289 are enabled). This driver uses the APB DMA to achieve higher baudrate 290 and better performance. 291 292config SERIAL_TEGRA_TCU 293 tristate "NVIDIA Tegra Combined UART" 294 depends on MAILBOX 295 depends on (ARCH_TEGRA && TEGRA_HSP_MBOX) || COMPILE_TEST 296 select SERIAL_CORE 297 help 298 Support for the mailbox-based TCU (Tegra Combined UART) serial port. 299 TCU is a virtual serial port that allows multiplexing multiple data 300 streams into a single hardware serial port. 301 302config SERIAL_TEGRA_TCU_CONSOLE 303 bool "Support for console on a Tegra TCU serial port" 304 depends on SERIAL_TEGRA_TCU=y 305 select SERIAL_CORE_CONSOLE 306 default y 307 help 308 If you say Y here, it will be possible to use a the Tegra TCU as the 309 system console (the system console is the device which receives all 310 kernel messages and warnings and which allows logins in single user 311 mode). 312 313 If unsure, say Y. 314 315config SERIAL_MAX3100 316 tristate "MAX3100 support" 317 depends on SPI 318 select SERIAL_CORE 319 help 320 MAX3100 chip support 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 help 328 This selects support for an advanced UART from Maxim (Dallas). 329 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830. 330 Each IC contains 128 words each of receive and transmit FIFO 331 that can be controlled through I2C or high-speed SPI. 332 333 Say Y here if you want to support this ICs. 334 335config SERIAL_DZ 336 bool "DECstation DZ serial driver" 337 depends on MACH_DECSTATION && 32BIT 338 select SERIAL_CORE 339 default y 340 help 341 DZ11-family serial controllers for DECstations and VAXstations, 342 including the DC7085, M7814, and M7819. 343 344config SERIAL_DZ_CONSOLE 345 bool "Support console on DECstation DZ serial driver" 346 depends on SERIAL_DZ=y 347 select SERIAL_CORE_CONSOLE 348 default y 349 help 350 If you say Y here, it will be possible to use a serial port as the 351 system console (the system console is the device which receives all 352 kernel messages and warnings and which allows logins in single user 353 mode). 354 355 Note that the firmware uses ttyS3 as the serial console on 356 DECstations that use this driver. 357 358 If unsure, say Y. 359 360config SERIAL_ZS 361 tristate "DECstation Z85C30 serial support" 362 depends on MACH_DECSTATION 363 select SERIAL_CORE 364 default y 365 help 366 Support for the Zilog 85C350 serial communications controller used 367 for serial ports in newer DECstation systems. These include the 368 DECsystem 5900 and all models of the DECstation and DECsystem 5000 369 systems except from model 200. 370 371 If unsure, say Y. To compile this driver as a module, choose M here: 372 the module will be called zs. 373 374config SERIAL_ZS_CONSOLE 375 bool "Support for console on a DECstation Z85C30 serial port" 376 depends on SERIAL_ZS=y 377 select SERIAL_CORE_CONSOLE 378 default y 379 help 380 If you say Y here, it will be possible to use a serial port as the 381 system console (the system console is the device which receives all 382 kernel messages and warnings and which allows logins in single user 383 mode). 384 385 Note that the firmware uses ttyS1 as the serial console on the 386 Maxine and ttyS3 on the others using this driver. 387 388 If unsure, say Y. 389 390config SERIAL_21285 391 tristate "DC21285 serial port support" 392 depends on FOOTBRIDGE 393 select SERIAL_CORE 394 help 395 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/ 396 PCI bridge you can enable its onboard serial port by enabling this 397 option. 398 399config SERIAL_21285_CONSOLE 400 bool "Console on DC21285 serial port" 401 depends on SERIAL_21285=y 402 select SERIAL_CORE_CONSOLE 403 help 404 If you have enabled the serial port on the 21285 footbridge you can 405 make it the console by answering Y to this option. 406 407 Even if you say Y here, the currently visible virtual console 408 (/dev/tty0) will still be used as the system console by default, but 409 you can alter that using a kernel command line option such as 410 "console=ttyFB". (Try "man bootparam" or see the documentation of 411 your boot loader (lilo or loadlin) about how to pass options to the 412 kernel at boot time.) 413 414config SERIAL_PXA 415 bool "PXA serial port support (DEPRECATED)" 416 depends on ARCH_PXA || ARCH_MMP 417 select SERIAL_CORE 418 select SERIAL_8250_PXA if SERIAL_8250=y 419 select SERIAL_PXA_NON8250 if !SERIAL_8250=y 420 help 421 If you have a machine based on an Intel XScale PXA2xx CPU you 422 can enable its onboard serial ports by enabling this option. 423 424 Unless you have a specific need, you should use SERIAL_8250_PXA 425 instead of this. 426 427config SERIAL_PXA_NON8250 428 bool 429 depends on !SERIAL_8250 430 431config SERIAL_PXA_CONSOLE 432 bool "Console on PXA serial port (DEPRECATED)" 433 depends on SERIAL_PXA 434 select SERIAL_CORE_CONSOLE 435 select SERIAL_8250_CONSOLE if SERIAL_8250=y 436 help 437 If you have enabled the serial port on the Intel XScale PXA 438 CPU you can make it the console by answering Y to this option. 439 440 Even if you say Y here, the currently visible virtual console 441 (/dev/tty0) will still be used as the system console by default, but 442 you can alter that using a kernel command line option such as 443 "console=ttySA0". (Try "man bootparam" or see the documentation of 444 your boot loader (lilo or loadlin) about how to pass options to the 445 kernel at boot time.) 446 447 Unless you have a specific need, you should use SERIAL_8250_PXA 448 and SERIAL_8250_CONSOLE instead of this. 449 450config SERIAL_SA1100 451 bool "SA1100 serial port support" 452 depends on ARCH_SA1100 453 select SERIAL_CORE 454 select SERIAL_MCTRL_GPIO if GPIOLIB 455 help 456 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you 457 can enable its onboard serial port by enabling this option. 458 Please read <file:Documentation/arm/sa1100/serial_uart.rst> for further 459 info. 460 461config SERIAL_SA1100_CONSOLE 462 bool "Console on SA1100 serial port" 463 depends on SERIAL_SA1100 464 select SERIAL_CORE_CONSOLE 465 help 466 If you have enabled the serial port on the SA1100/SA1110 StrongARM 467 CPU you can make it the console by answering Y to this option. 468 469 Even if you say Y here, the currently visible virtual console 470 (/dev/tty0) will still be used as the system console by default, but 471 you can alter that using a kernel command line option such as 472 "console=ttySA0". (Try "man bootparam" or see the documentation of 473 your boot loader (lilo or loadlin) about how to pass options to the 474 kernel at boot time.) 475 476config SERIAL_IMX 477 tristate "IMX serial port support" 478 depends on ARCH_MXC || COMPILE_TEST 479 select SERIAL_CORE 480 select RATIONAL 481 select SERIAL_MCTRL_GPIO if GPIOLIB 482 help 483 If you have a machine based on a Motorola IMX CPU you 484 can enable its onboard serial port by enabling this option. 485 486config SERIAL_IMX_CONSOLE 487 tristate "Console on IMX serial port" 488 depends on SERIAL_IMX 489 select SERIAL_CORE_CONSOLE 490 help 491 If you have enabled the serial port on the Freescale IMX 492 CPU you can make it the console by answering Y/M to this option. 493 494 Even if you say Y/M here, the currently visible virtual console 495 (/dev/tty0) will still be used as the system console by default, but 496 you can alter that using a kernel command line option such as 497 "console=ttymxc0". (Try "man bootparam" or see the documentation of 498 your bootloader about how to pass options to the kernel at boot time.) 499 500config SERIAL_IMX_EARLYCON 501 bool "Earlycon on IMX serial port" 502 depends on ARCH_MXC || COMPILE_TEST 503 depends on OF 504 select SERIAL_CORE 505 select SERIAL_EARLYCON 506 select SERIAL_CORE_CONSOLE 507 default y if SERIAL_IMX_CONSOLE 508 help 509 If you have enabled the earlycon on the Freescale IMX 510 CPU you can make it the earlycon by answering Y to this option. 511 512config SERIAL_UARTLITE 513 tristate "Xilinx uartlite serial port support" 514 depends on HAS_IOMEM 515 select SERIAL_CORE 516 help 517 Say Y here if you want to use the Xilinx uartlite serial controller. 518 519 To compile this driver as a module, choose M here: the 520 module will be called uartlite. 521 522config SERIAL_UARTLITE_CONSOLE 523 bool "Support for console on Xilinx uartlite serial port" 524 depends on SERIAL_UARTLITE=y 525 select SERIAL_CORE_CONSOLE 526 select SERIAL_EARLYCON 527 help 528 Say Y here if you wish to use a Xilinx uartlite as the system 529 console (the system console is the device which receives all kernel 530 messages and warnings and which allows logins in single user mode). 531 532config SERIAL_UARTLITE_NR_UARTS 533 int "Maximum number of uartlite serial ports" 534 depends on SERIAL_UARTLITE 535 range 1 256 536 default 1 537 help 538 Set this to the number of uartlites in your system, or the number 539 you think you might implement. 540 541config SERIAL_SUNCORE 542 bool 543 depends on SPARC 544 select SERIAL_CORE 545 select SERIAL_CORE_CONSOLE 546 default y 547 548config SERIAL_SUNZILOG 549 tristate "Sun Zilog8530 serial support" 550 depends on SPARC 551 help 552 This driver supports the Zilog8530 serial ports found on many Sparc 553 systems. Say Y or M if you want to be able to these serial ports. 554 555config SERIAL_SUNZILOG_CONSOLE 556 bool "Console on Sun Zilog8530 serial port" 557 depends on SERIAL_SUNZILOG=y 558 help 559 If you would like to be able to use the Zilog8530 serial port 560 on your Sparc system as the console, you can do so by answering 561 Y to this option. 562 563config SERIAL_SUNSU 564 tristate "Sun SU serial support" 565 depends on SPARC && PCI 566 help 567 This driver supports the 8250 serial ports that run the keyboard and 568 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able 569 to these serial ports. 570 571config SERIAL_SUNSU_CONSOLE 572 bool "Console on Sun SU serial port" 573 depends on SERIAL_SUNSU=y 574 help 575 If you would like to be able to use the SU serial port 576 on your Sparc system as the console, you can do so by answering 577 Y to this option. 578 579config SERIAL_MUX 580 tristate "Serial MUX support" 581 depends on GSC 582 select SERIAL_CORE 583 default y 584 help 585 Saying Y here will enable the hardware MUX serial driver for 586 the Nova, K class systems and D class with a 'remote control card'. 587 The hardware MUX is not 8250/16550 compatible therefore the 588 /dev/ttyB0 device is shared between the Serial MUX and the PDC 589 software console. The following steps need to be completed to use 590 the Serial MUX: 591 592 1. create the device entry (mknod /dev/ttyB0 c 11 0) 593 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 594 3. Add device ttyB0 to /etc/securetty (if you want to log on as 595 root on this console.) 596 4. Change the kernel command console parameter to: console=ttyB0 597 598config SERIAL_MUX_CONSOLE 599 bool "Support for console on serial MUX" 600 depends on SERIAL_MUX=y 601 select SERIAL_CORE_CONSOLE 602 default y 603 604config PDC_CONSOLE 605 bool "PDC software console support" 606 depends on PARISC && !SERIAL_MUX && VT 607 help 608 Saying Y here will enable the software based PDC console to be 609 used as the system console. This is useful for machines in 610 which the hardware based console has not been written yet. The 611 following steps must be completed to use the PDC console: 612 613 1. create the device entry (mknod /dev/ttyB0 c 11 0) 614 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 615 3. Add device ttyB0 to /etc/securetty (if you want to log on as 616 root on this console.) 617 4. Change the kernel command console parameter to: console=ttyB0 618 619config SERIAL_SUNSAB 620 tristate "Sun Siemens SAB82532 serial support" 621 depends on SPARC && PCI 622 help 623 This driver supports the Siemens SAB82532 DUSCC serial ports on newer 624 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these 625 serial ports. 626 627config SERIAL_SUNSAB_CONSOLE 628 bool "Console on Sun Siemens SAB82532 serial port" 629 depends on SERIAL_SUNSAB=y 630 help 631 If you would like to be able to use the SAB82532 serial port 632 on your Sparc system as the console, you can do so by answering 633 Y to this option. 634 635config SERIAL_SUNHV 636 bool "Sun4v Hypervisor Console support" 637 depends on SPARC64 638 help 639 This driver supports the console device found on SUN4V Sparc 640 systems. Say Y if you want to be able to use this device. 641 642config SERIAL_IP22_ZILOG 643 tristate "SGI Zilog8530 serial support" 644 depends on SGI_HAS_ZILOG 645 select SERIAL_CORE 646 help 647 This driver supports the Zilog8530 serial ports found on SGI 648 systems. Say Y or M if you want to be able to these serial ports. 649 650config SERIAL_IP22_ZILOG_CONSOLE 651 bool "Console on SGI Zilog8530 serial port" 652 depends on SERIAL_IP22_ZILOG=y 653 select SERIAL_CORE_CONSOLE 654 655config SERIAL_SH_SCI 656 tristate "SuperH SCI(F) serial port support" 657 depends on SUPERH || ARCH_RENESAS || COMPILE_TEST 658 select SERIAL_CORE 659 select SERIAL_MCTRL_GPIO if GPIOLIB 660 661config SERIAL_SH_SCI_NR_UARTS 662 int "Maximum number of SCI(F) serial ports" if EXPERT 663 range 1 64 if 64BIT 664 range 1 32 if !64BIT 665 depends on SERIAL_SH_SCI 666 default "10" if SUPERH 667 default "18" if ARCH_RENESAS 668 default "2" 669 670config SERIAL_SH_SCI_CONSOLE 671 bool "Support for console on SuperH SCI(F)" if EXPERT 672 depends on SERIAL_SH_SCI=y 673 select SERIAL_CORE_CONSOLE 674 default y 675 676config SERIAL_SH_SCI_EARLYCON 677 bool "Support for early console on SuperH SCI(F)" if EXPERT 678 depends on SERIAL_SH_SCI=y 679 select SERIAL_CORE_CONSOLE 680 select SERIAL_EARLYCON 681 default ARCH_RENESAS 682 683config SERIAL_SH_SCI_DMA 684 bool "DMA support" if EXPERT 685 depends on SERIAL_SH_SCI && DMA_ENGINE 686 default ARCH_RENESAS 687 688config SERIAL_HS_LPC32XX 689 tristate "LPC32XX high speed serial port support" 690 depends on ARCH_LPC32XX || COMPILE_TEST 691 depends on OF 692 select SERIAL_CORE 693 help 694 Support for the LPC32XX high speed serial ports (up to 900kbps). 695 Those are UARTs completely different from the Standard UARTs on the 696 LPC32XX SoC. 697 Choose M or Y here to build this driver. 698 699config SERIAL_HS_LPC32XX_CONSOLE 700 bool "Enable LPC32XX high speed UART serial console" 701 depends on SERIAL_HS_LPC32XX=y 702 select SERIAL_CORE_CONSOLE 703 help 704 If you would like to be able to use one of the high speed serial 705 ports on the LPC32XX as the console, you can do so by answering 706 Y to this option. 707 708config SERIAL_CORE 709 tristate 710 711config SERIAL_CORE_CONSOLE 712 bool 713 714config CONSOLE_POLL 715 bool 716 717config SERIAL_MCF 718 bool "Coldfire serial support" 719 depends on COLDFIRE 720 select SERIAL_CORE 721 help 722 This serial driver supports the Freescale Coldfire serial ports. 723 724config SERIAL_MCF_BAUDRATE 725 int "Default baudrate for Coldfire serial ports" 726 depends on SERIAL_MCF 727 default 19200 728 help 729 This setting lets you define what the default baudrate is for the 730 ColdFire serial ports. The usual default varies from board to board, 731 and this setting is a way of catering for that. 732 733config SERIAL_MCF_CONSOLE 734 bool "Coldfire serial console support" 735 depends on SERIAL_MCF 736 select SERIAL_CORE_CONSOLE 737 help 738 Enable a ColdFire internal serial port to be the system console. 739 740config SERIAL_PMACZILOG 741 tristate "Mac or PowerMac z85c30 ESCC support" 742 depends on (M68K && MAC) || PPC_PMAC 743 select SERIAL_CORE 744 help 745 This driver supports the Zilog z85C30 serial ports found on 746 (Power)Mac machines. 747 Say Y or M if you want to be able to these serial ports. 748 749config SERIAL_PMACZILOG_TTYS 750 bool "Use ttySn device nodes for Zilog z85c30" 751 depends on SERIAL_PMACZILOG 752 help 753 The pmac_zilog driver for the z85C30 chip on many powermacs 754 historically used the device numbers for /dev/ttySn. The 755 8250 serial port driver also uses these numbers, which means 756 the two drivers being unable to coexist; you could not use 757 both z85C30 and 8250 type ports at the same time. 758 759 If this option is not selected, the pmac_zilog driver will 760 use the device numbers allocated for /dev/ttyPZn. This allows 761 the pmac_zilog and 8250 drivers to co-exist, but may cause 762 existing userspace setups to break. Programs that need to 763 access the built-in serial ports on powermacs will need to 764 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn. 765 766 If you enable this option, any z85c30 ports in the system will 767 be registered as ttyS0 onwards as in the past, and you will be 768 unable to use the 8250 module for PCMCIA or other 16C550-style 769 UARTs. 770 771 Say N unless you need the z85c30 ports on your (Power)Mac 772 to appear as /dev/ttySn. 773 774config SERIAL_PMACZILOG_CONSOLE 775 bool "Console on Mac or PowerMac z85c30 serial port" 776 depends on SERIAL_PMACZILOG=y 777 select SERIAL_CORE_CONSOLE 778 help 779 If you would like to be able to use the z85c30 serial port 780 on your (Power)Mac as the console, you can do so by answering 781 Y to this option. 782 783config SERIAL_CPM 784 tristate "CPM SCC/SMC serial port support" 785 depends on CPM2 || CPM1 || (PPC32 && COMPILE_TEST) 786 select SERIAL_CORE 787 help 788 This driver supports the SCC and SMC serial ports on Motorola 789 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx) 790 791config SERIAL_CPM_CONSOLE 792 bool "Support for console on CPM SCC/SMC serial port" 793 depends on SERIAL_CPM=y 794 select SERIAL_CORE_CONSOLE 795 help 796 Say Y here if you wish to use a SCC or SMC CPM UART as the system 797 console (the system console is the device which receives all kernel 798 messages and warnings and which allows logins in single user mode). 799 800 Even if you say Y here, the currently visible framebuffer console 801 (/dev/tty0) will still be used as the system console by default, but 802 you can alter that using a kernel command line option such as 803 "console=ttyCPM0". (Try "man bootparam" or see the documentation of 804 your boot loader (lilo or loadlin) about how to pass options to the 805 kernel at boot time.) 806 807config SERIAL_PIC32 808 tristate "Microchip PIC32 serial support" 809 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 810 select SERIAL_CORE 811 help 812 If you have a PIC32, this driver supports the serial ports. 813 814 Say Y or M to use PIC32 serial ports, otherwise say N. Note that 815 to use a serial port as a console, this must be included in kernel and 816 not as a module. 817 818config SERIAL_PIC32_CONSOLE 819 bool "PIC32 serial console support" 820 depends on SERIAL_PIC32=y 821 select SERIAL_CORE_CONSOLE 822 help 823 If you have a PIC32, this driver supports the putting a console on one 824 of the serial ports. 825 826 Say Y to use the PIC32 console, otherwise say N. 827 828config SERIAL_MPC52xx 829 tristate "Freescale MPC52xx/MPC512x family PSC serial support" 830 depends on PPC_MPC52xx || PPC_MPC512x 831 select SERIAL_CORE 832 help 833 This driver supports MPC52xx and MPC512x PSC serial ports. If you would 834 like to use them, you must answer Y or M to this option. Note that 835 for use as console, it must be included in kernel and not as a 836 module. 837 838config SERIAL_MPC52xx_CONSOLE 839 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port" 840 depends on SERIAL_MPC52xx=y 841 select SERIAL_CORE_CONSOLE 842 help 843 Select this options if you'd like to use one of the PSC serial port 844 of the Freescale MPC52xx family as a console. 845 846config SERIAL_MPC52xx_CONSOLE_BAUD 847 int "Freescale MPC52xx/MPC512x family PSC serial port baud" 848 depends on SERIAL_MPC52xx_CONSOLE=y 849 default "9600" 850 help 851 Select the MPC52xx console baud rate. 852 This value is only used if the bootloader doesn't pass in the 853 console baudrate 854 855config SERIAL_ICOM 856 tristate "IBM Multiport Serial Adapter" 857 depends on PCI 858 depends on PPC_PSERIES || COMPILE_TEST 859 select SERIAL_CORE 860 select FW_LOADER 861 help 862 This driver is for a family of multiport serial adapters 863 including 2 port RVX, 2 port internal modem, 4 port internal 864 modem and a split 1 port RVX and 1 port internal modem. 865 866 This driver can also be built as a module. If so, the module 867 will be called icom. 868 869config SERIAL_TXX9 870 bool "TMPTX39XX/49XX SIO support" 871 depends on HAS_TXX9_SERIAL 872 select SERIAL_CORE 873 default y 874 875config HAS_TXX9_SERIAL 876 bool 877 878config SERIAL_TXX9_NR_UARTS 879 int "Maximum number of TMPTX39XX/49XX SIO ports" 880 depends on SERIAL_TXX9 881 default "6" 882 883config SERIAL_TXX9_CONSOLE 884 bool "TMPTX39XX/49XX SIO Console support" 885 depends on SERIAL_TXX9=y 886 select SERIAL_CORE_CONSOLE 887 888config SERIAL_TXX9_STDSERIAL 889 bool "TX39XX/49XX SIO act as standard serial" 890 depends on !SERIAL_8250 && SERIAL_TXX9 891 892config SERIAL_VR41XX 893 tristate "NEC VR4100 series Serial Interface Unit support" 894 depends on CPU_VR41XX 895 select SERIAL_CORE 896 help 897 If you have a NEC VR4100 series processor and you want to use 898 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU) 899 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N. 900 901config SERIAL_VR41XX_CONSOLE 902 bool "Enable NEC VR4100 series Serial Interface Unit console" 903 depends on SERIAL_VR41XX=y 904 select SERIAL_CORE_CONSOLE 905 help 906 If you have a NEC VR4100 series processor and you want to use 907 a console on a serial port, say Y. Otherwise, say N. 908 909config SERIAL_JSM 910 tristate "Digi International NEO and Classic PCI Support" 911 depends on PCI 912 select SERIAL_CORE 913 help 914 This is a driver for Digi International's Neo and Classic series 915 of cards which provide multiple serial ports. You would need 916 something like this to connect more than two modems to your Linux 917 box, for instance in order to become a dial-in server. This driver 918 supports PCI boards only. 919 920 If you have a card like this, say Y here, otherwise say N. 921 922 To compile this driver as a module, choose M here: the 923 module will be called jsm. 924 925config SERIAL_MSM 926 tristate "MSM on-chip serial port support" 927 depends on ARCH_QCOM || COMPILE_TEST 928 select SERIAL_CORE 929 930config SERIAL_MSM_CONSOLE 931 bool "MSM serial console support" 932 depends on SERIAL_MSM=y 933 select SERIAL_CORE_CONSOLE 934 select SERIAL_EARLYCON 935 936config SERIAL_QCOM_GENI 937 tristate "QCOM on-chip GENI based serial port support" 938 depends on ARCH_QCOM || COMPILE_TEST 939 depends on QCOM_GENI_SE 940 select SERIAL_CORE 941 942config SERIAL_QCOM_GENI_CONSOLE 943 bool "QCOM GENI Serial Console support" 944 depends on SERIAL_QCOM_GENI 945 select SERIAL_CORE_CONSOLE 946 select SERIAL_EARLYCON 947 help 948 Serial console driver for Qualcomm Technologies Inc's GENI based 949 QUP hardware. 950 951config SERIAL_VT8500 952 bool "VIA VT8500 on-chip serial port support" 953 depends on ARCH_VT8500 || COMPILE_TEST 954 select SERIAL_CORE 955 956config SERIAL_VT8500_CONSOLE 957 bool "VIA VT8500 serial console support" 958 depends on SERIAL_VT8500=y 959 select SERIAL_CORE_CONSOLE 960 961config SERIAL_OMAP 962 tristate "OMAP serial port support" 963 depends on (ARCH_OMAP2PLUS && !SERIAL_8250_OMAP) || COMPILE_TEST 964 select SERIAL_CORE 965 help 966 If you have a machine based on an Texas Instruments OMAP CPU you 967 can enable its onboard serial ports by enabling this option. 968 969 By enabling this option you take advantage of dma feature available 970 with the omap-serial driver. DMA support can be enabled from platform 971 data. 972 973config SERIAL_OMAP_CONSOLE 974 bool "Console on OMAP serial port" 975 depends on SERIAL_OMAP=y 976 select SERIAL_CORE_CONSOLE 977 help 978 Select this option if you would like to use omap serial port as 979 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=ttyOx". (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_SIFIVE 989 tristate "SiFive UART support" 990 depends on OF 991 select SERIAL_CORE 992 help 993 Select this option if you are building a kernel for a device that 994 contains a SiFive UART IP block. This type of UART is present on 995 SiFive FU540 SoCs, among others. 996 997config SERIAL_SIFIVE_CONSOLE 998 bool "Console on SiFive UART" 999 depends on SERIAL_SIFIVE=y 1000 select SERIAL_CORE_CONSOLE 1001 select SERIAL_EARLYCON 1002 help 1003 Select this option if you would like to use a SiFive UART as the 1004 system console. 1005 1006 Even if you say Y here, the currently visible virtual console 1007 (/dev/tty0) will still be used as the system console by default, but 1008 you can alter that using a kernel command line option such as 1009 "console=ttySIFx". (Try "man bootparam" or see the documentation of 1010 your boot loader about how to pass options to the kernel at 1011 boot time.) 1012 1013config SERIAL_LANTIQ 1014 tristate "Lantiq serial driver" 1015 depends on (LANTIQ || X86) || COMPILE_TEST 1016 select SERIAL_CORE 1017 help 1018 Support for UART on Lantiq and Intel SoCs. 1019 To compile this driver as a module, select M here. The 1020 module will be called lantiq. 1021 1022config SERIAL_LANTIQ_CONSOLE 1023 bool "Console on Lantiq UART" 1024 depends on SERIAL_LANTIQ=y 1025 select SERIAL_CORE_CONSOLE 1026 select SERIAL_EARLYCON 1027 help 1028 Select this option if you would like to use a Lantiq UART as the 1029 system console. 1030 1031config SERIAL_QE 1032 tristate "Freescale QUICC Engine serial port support" 1033 depends on QUICC_ENGINE 1034 select SERIAL_CORE 1035 select FW_LOADER 1036 help 1037 This driver supports the QE serial ports on Freescale embedded 1038 PowerPC that contain a QUICC Engine. 1039 1040config SERIAL_SCCNXP 1041 tristate "SCCNXP serial port support" 1042 select SERIAL_CORE 1043 help 1044 This selects support for an advanced UART from NXP (Philips). 1045 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92, 1046 SC28L202, SCC68681 and SCC68692. 1047 1048config SERIAL_SCCNXP_CONSOLE 1049 bool "Console on SCCNXP serial port" 1050 depends on SERIAL_SCCNXP=y 1051 select SERIAL_CORE_CONSOLE 1052 help 1053 Support for console on SCCNXP serial ports. 1054 1055config SERIAL_SC16IS7XX_CORE 1056 tristate 1057 1058config SERIAL_SC16IS7XX 1059 tristate "SC16IS7xx serial support" 1060 select SERIAL_CORE 1061 depends on (SPI_MASTER && !I2C) || I2C 1062 help 1063 This selects support for SC16IS7xx serial ports. 1064 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752, 1065 SC16IS760 and SC16IS762. Select supported buses using options below. 1066 1067config SERIAL_SC16IS7XX_I2C 1068 bool "SC16IS7xx for I2C interface" 1069 depends on SERIAL_SC16IS7XX 1070 depends on I2C 1071 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1072 select REGMAP_I2C if I2C 1073 default y 1074 help 1075 Enable SC16IS7xx driver on I2C bus, 1076 If required say y, and say n to i2c if not required, 1077 Enabled by default to support oldconfig. 1078 You must select at least one bus for the driver to be built. 1079 1080config SERIAL_SC16IS7XX_SPI 1081 bool "SC16IS7xx for spi interface" 1082 depends on SERIAL_SC16IS7XX 1083 depends on SPI_MASTER 1084 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1085 select REGMAP_SPI if SPI_MASTER 1086 help 1087 Enable SC16IS7xx driver on SPI bus, 1088 If required say y, and say n to spi if not required, 1089 This is additional support to existing driver. 1090 You must select at least one bus for the driver to be built. 1091 1092config SERIAL_TIMBERDALE 1093 tristate "Support for timberdale UART" 1094 select SERIAL_CORE 1095 depends on X86_32 || COMPILE_TEST 1096 help 1097 Add support for UART controller on timberdale. 1098 1099config SERIAL_BCM63XX 1100 tristate "Broadcom BCM63xx/BCM33xx UART support" 1101 select SERIAL_CORE 1102 depends on ARCH_BCM4908 || ARCH_BCM_63XX || BCM63XX || BMIPS_GENERIC || COMPILE_TEST 1103 default ARCH_BCM4908 || ARCH_BCM_63XX || BCM63XX || BMIPS_GENERIC 1104 help 1105 This enables the driver for the onchip UART core found on 1106 the following chipsets: 1107 1108 BCM33xx (cable modem) 1109 BCM63xx/BCM63xxx (DSL) 1110 BCM68xx (PON) 1111 BCM7xxx (STB) - DOCSIS console 1112 1113config SERIAL_BCM63XX_CONSOLE 1114 bool "Console on BCM63xx serial port" 1115 depends on SERIAL_BCM63XX=y 1116 select SERIAL_CORE_CONSOLE 1117 select SERIAL_EARLYCON 1118 help 1119 If you have enabled the serial port on the BCM63xx CPU 1120 you can make it the console by answering Y to this option. 1121 1122config SERIAL_GRLIB_GAISLER_APBUART 1123 tristate "GRLIB APBUART serial support" 1124 depends on OF && SPARC 1125 select SERIAL_CORE 1126 help 1127 Add support for the GRLIB APBUART serial port. 1128 1129config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE 1130 bool "Console on GRLIB APBUART serial port" 1131 depends on SERIAL_GRLIB_GAISLER_APBUART=y 1132 select SERIAL_CORE_CONSOLE 1133 help 1134 Support for running a console on the GRLIB APBUART 1135 1136config SERIAL_ALTERA_JTAGUART 1137 tristate "Altera JTAG UART support" 1138 select SERIAL_CORE 1139 help 1140 This driver supports the Altera JTAG UART port. 1141 1142config SERIAL_ALTERA_JTAGUART_CONSOLE 1143 bool "Altera JTAG UART console support" 1144 depends on SERIAL_ALTERA_JTAGUART=y 1145 select SERIAL_CORE_CONSOLE 1146 select SERIAL_EARLYCON 1147 help 1148 Enable a Altera JTAG UART port to be the system console. 1149 1150config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS 1151 bool "Bypass output when no connection" 1152 depends on SERIAL_ALTERA_JTAGUART_CONSOLE 1153 select SERIAL_CORE_CONSOLE 1154 help 1155 Bypass console output and keep going even if there is no 1156 JTAG terminal connection with the host. 1157 1158config SERIAL_ALTERA_UART 1159 tristate "Altera UART support" 1160 select SERIAL_CORE 1161 help 1162 This driver supports the Altera softcore UART port. 1163 1164config SERIAL_ALTERA_UART_MAXPORTS 1165 int "Maximum number of Altera UART ports" 1166 depends on SERIAL_ALTERA_UART 1167 default 4 1168 help 1169 This setting lets you define the maximum number of the Altera 1170 UART ports. The usual default varies from board to board, and 1171 this setting is a way of catering for that. 1172 1173config SERIAL_ALTERA_UART_BAUDRATE 1174 int "Default baudrate for Altera UART ports" 1175 depends on SERIAL_ALTERA_UART 1176 default 115200 1177 help 1178 This setting lets you define what the default baudrate is for the 1179 Altera UART ports. The usual default varies from board to board, 1180 and this setting is a way of catering for that. 1181 1182config SERIAL_ALTERA_UART_CONSOLE 1183 bool "Altera UART console support" 1184 depends on SERIAL_ALTERA_UART=y 1185 select SERIAL_CORE_CONSOLE 1186 select SERIAL_EARLYCON 1187 help 1188 Enable a Altera UART port to be the system console. 1189 1190config SERIAL_PCH_UART 1191 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART" 1192 depends on PCI && (X86_32 || MIPS || COMPILE_TEST) 1193 select SERIAL_CORE 1194 help 1195 This driver is for PCH(Platform controller Hub) UART of Intel EG20T 1196 which is an IOH(Input/Output Hub) for x86 embedded processor. 1197 Enabling PCH_DMA, this PCH UART works as DMA mode. 1198 1199 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1200 Output Hub), ML7213, ML7223 and ML7831. 1201 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 1202 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 1203 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1204 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1205 1206config SERIAL_PCH_UART_CONSOLE 1207 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH" 1208 depends on SERIAL_PCH_UART=y 1209 select SERIAL_CORE_CONSOLE 1210 help 1211 Say Y here if you wish to use the PCH UART as the system console 1212 (the system console is the device which receives all kernel messages and 1213 warnings and which allows logins in single user mode). 1214 1215config SERIAL_MXS_AUART 1216 tristate "MXS AUART support" 1217 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST 1218 select SERIAL_CORE 1219 select SERIAL_MCTRL_GPIO if GPIOLIB 1220 help 1221 This driver supports the MXS and Alphascale ASM9260 Application 1222 UART (AUART) port. 1223 1224config SERIAL_MXS_AUART_CONSOLE 1225 bool "MXS AUART console support" 1226 depends on SERIAL_MXS_AUART=y 1227 select SERIAL_CORE_CONSOLE 1228 help 1229 Enable a MXS AUART port to be the system console. 1230 1231config SERIAL_XILINX_PS_UART 1232 tristate "Cadence (Xilinx Zynq) UART support" 1233 depends on OF 1234 select SERIAL_CORE 1235 help 1236 This driver supports the Cadence UART. It is found e.g. in Xilinx 1237 Zynq. 1238 1239config SERIAL_XILINX_PS_UART_CONSOLE 1240 bool "Cadence UART console support" 1241 depends on SERIAL_XILINX_PS_UART=y 1242 select SERIAL_CORE_CONSOLE 1243 select SERIAL_EARLYCON 1244 help 1245 Enable a Cadence UART port to be the system console. 1246 1247config SERIAL_AR933X 1248 tristate "AR933X serial port support" 1249 depends on (HAVE_CLK && ATH79) || (MIPS && COMPILE_TEST) 1250 select SERIAL_CORE 1251 select SERIAL_MCTRL_GPIO if GPIOLIB 1252 help 1253 If you have an Atheros AR933X SOC based board and want to use the 1254 built-in UART of the SoC, say Y to this option. 1255 1256 To compile this driver as a module, choose M here: the 1257 module will be called ar933x_uart. 1258 1259config SERIAL_AR933X_CONSOLE 1260 bool "Console on AR933X serial port" 1261 depends on SERIAL_AR933X=y 1262 select SERIAL_CORE_CONSOLE 1263 help 1264 Enable a built-in UART port of the AR933X to be the system console. 1265 1266config SERIAL_AR933X_NR_UARTS 1267 int "Maximum number of AR933X serial ports" 1268 depends on SERIAL_AR933X 1269 default "2" 1270 help 1271 Set this to the number of serial ports you want the driver 1272 to support. 1273 1274config SERIAL_MPS2_UART_CONSOLE 1275 bool "MPS2 UART console support" 1276 depends on SERIAL_MPS2_UART 1277 select SERIAL_CORE_CONSOLE 1278 select SERIAL_EARLYCON 1279 1280config SERIAL_MPS2_UART 1281 bool "MPS2 UART port" 1282 depends on ARCH_MPS2 || COMPILE_TEST 1283 select SERIAL_CORE 1284 help 1285 This driver support the UART ports on ARM MPS2. 1286 1287config SERIAL_ARC 1288 tristate "ARC UART driver support" 1289 select SERIAL_CORE 1290 help 1291 Driver for on-chip UART for ARC(Synopsys) for the legacy 1292 FPGA Boards (ML50x/ARCAngel4) 1293 1294config SERIAL_ARC_CONSOLE 1295 bool "Console on ARC UART" 1296 depends on SERIAL_ARC=y 1297 select SERIAL_CORE_CONSOLE 1298 select SERIAL_EARLYCON 1299 help 1300 Enable system Console on ARC UART 1301 1302config SERIAL_ARC_NR_PORTS 1303 int "Number of ARC UART ports" 1304 depends on SERIAL_ARC 1305 range 1 3 1306 default "1" 1307 help 1308 Set this to the number of serial ports you want the driver 1309 to support. 1310 1311config SERIAL_RP2 1312 tristate "Comtrol RocketPort EXPRESS/INFINITY support" 1313 depends on PCI 1314 select SERIAL_CORE 1315 help 1316 This driver supports the Comtrol RocketPort EXPRESS and 1317 RocketPort INFINITY families of PCI/PCIe multiport serial adapters. 1318 These adapters use a "RocketPort 2" ASIC that is not compatible 1319 with the original RocketPort driver (CONFIG_ROCKETPORT). 1320 1321 To compile this driver as a module, choose M here: the 1322 module will be called rp2. 1323 1324 If you want to compile this driver into the kernel, say Y here. If 1325 you don't have a suitable RocketPort card installed, say N. 1326 1327config SERIAL_RP2_NR_UARTS 1328 int "Maximum number of RocketPort EXPRESS/INFINITY ports" 1329 depends on SERIAL_RP2 1330 default "32" 1331 help 1332 If multiple cards are present, the default limit of 32 ports may 1333 need to be increased. 1334 1335config SERIAL_FSL_LPUART 1336 tristate "Freescale lpuart serial port support" 1337 depends on HAS_DMA 1338 select SERIAL_CORE 1339 help 1340 Support for the on-chip lpuart on some Freescale SOCs. 1341 1342config SERIAL_FSL_LPUART_CONSOLE 1343 bool "Console on Freescale lpuart serial port" 1344 depends on SERIAL_FSL_LPUART=y 1345 select SERIAL_CORE_CONSOLE 1346 select SERIAL_EARLYCON 1347 help 1348 If you have enabled the lpuart serial port on the Freescale SoCs, 1349 you can make it the console by answering Y to this option. 1350 1351config SERIAL_FSL_LINFLEXUART 1352 tristate "Freescale LINFlexD UART serial port support" 1353 depends on PRINTK 1354 select SERIAL_CORE 1355 help 1356 Support for the on-chip LINFlexD UART on some Freescale SOCs. 1357 1358config SERIAL_FSL_LINFLEXUART_CONSOLE 1359 bool "Console on Freescale LINFlexD UART serial port" 1360 depends on SERIAL_FSL_LINFLEXUART=y 1361 select SERIAL_CORE_CONSOLE 1362 select SERIAL_EARLYCON 1363 help 1364 If you have enabled the LINFlexD UART serial port on the Freescale 1365 SoCs, you can make it the console by answering Y to this option. 1366 1367config SERIAL_CONEXANT_DIGICOLOR 1368 tristate "Conexant Digicolor CX92xxx USART serial port support" 1369 depends on OF 1370 select SERIAL_CORE 1371 help 1372 Support for the on-chip USART on Conexant Digicolor SoCs. 1373 1374config SERIAL_CONEXANT_DIGICOLOR_CONSOLE 1375 bool "Console on Conexant Digicolor serial port" 1376 depends on SERIAL_CONEXANT_DIGICOLOR=y 1377 select SERIAL_CORE_CONSOLE 1378 help 1379 If you have enabled the USART serial port on Conexant Digicolor 1380 SoCs, you can make it the console by answering Y to this option. 1381 1382config SERIAL_ST_ASC 1383 tristate "ST ASC serial port support" 1384 select SERIAL_CORE 1385 depends on ARM || COMPILE_TEST 1386 help 1387 This driver is for the on-chip Asynchronous Serial Controller on 1388 STMicroelectronics STi SoCs. 1389 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality. 1390 It support all industry standard baud rates. 1391 1392 If unsure, say N. 1393 1394config SERIAL_ST_ASC_CONSOLE 1395 bool "Support for console on ST ASC" 1396 depends on SERIAL_ST_ASC=y 1397 select SERIAL_CORE_CONSOLE 1398 1399config SERIAL_MEN_Z135 1400 tristate "MEN 16z135 Support" 1401 select SERIAL_CORE 1402 depends on MCB 1403 help 1404 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core 1405 on a MCB carrier. 1406 1407 This driver can also be build as a module. If so, the module will be called 1408 men_z135_uart.ko 1409 1410config SERIAL_SPRD 1411 tristate "Support for Spreadtrum serial" 1412 select SERIAL_CORE 1413 depends on COMMON_CLK 1414 help 1415 This enables the driver for the Spreadtrum's serial. 1416 1417config SERIAL_SPRD_CONSOLE 1418 bool "Spreadtrum UART console support" 1419 depends on SERIAL_SPRD=y 1420 select SERIAL_CORE_CONSOLE 1421 select SERIAL_EARLYCON 1422 help 1423 Support for early debug console using Spreadtrum's serial. This enables 1424 the console before standard serial driver is probed. This is enabled 1425 with "earlycon" on the kernel command line. The console is 1426 enabled when early_param is processed. 1427 1428config SERIAL_STM32 1429 tristate "STMicroelectronics STM32 serial port support" 1430 select SERIAL_CORE 1431 depends on ARCH_STM32 || COMPILE_TEST 1432 select SERIAL_MCTRL_GPIO if GPIOLIB 1433 help 1434 This driver is for the on-chip Serial Controller on 1435 STMicroelectronics STM32 MCUs. 1436 USART supports Rx & Tx functionality. 1437 It support all industry standard baud rates. 1438 1439 If unsure, say N. 1440 1441config SERIAL_STM32_CONSOLE 1442 bool "Support for console on STM32" 1443 depends on SERIAL_STM32=y 1444 select SERIAL_CORE_CONSOLE 1445 select SERIAL_EARLYCON 1446 1447config SERIAL_MVEBU_UART 1448 bool "Marvell EBU serial port support" 1449 depends on ARCH_MVEBU || COMPILE_TEST 1450 depends on COMMON_CLK 1451 select SERIAL_CORE 1452 help 1453 This driver is for Marvell EBU SoC's UART. If you have a machine 1454 based on the Armada-3700 SoC and wish to use the on-board serial 1455 port, 1456 say 'Y' here. 1457 Otherwise, say 'N'. 1458 1459config SERIAL_MVEBU_CONSOLE 1460 bool "Console on Marvell EBU serial port" 1461 depends on SERIAL_MVEBU_UART 1462 select SERIAL_CORE_CONSOLE 1463 select SERIAL_EARLYCON 1464 default y 1465 help 1466 Say 'Y' here if you wish to use Armada-3700 UART as the system console. 1467 (the system console is the device which receives all kernel messages 1468 and warnings and which allows logins in single user mode) 1469 Otherwise, say 'N'. 1470 1471config SERIAL_OWL 1472 tristate "Actions Semi Owl serial port support" 1473 depends on ARCH_ACTIONS || COMPILE_TEST 1474 select SERIAL_CORE 1475 help 1476 This driver is for Actions Semiconductor S500/S900 SoC's UART. 1477 Say 'Y' here if you wish to use the on-board serial port. 1478 Otherwise, say 'N'. 1479 1480config SERIAL_OWL_CONSOLE 1481 bool "Console on Actions Semi Owl serial port" 1482 depends on SERIAL_OWL=y 1483 select SERIAL_CORE_CONSOLE 1484 select SERIAL_EARLYCON 1485 default y 1486 help 1487 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART 1488 as the system console. 1489 1490config SERIAL_RDA 1491 bool "RDA Micro serial port support" 1492 depends on ARCH_RDA || COMPILE_TEST 1493 select SERIAL_CORE 1494 help 1495 This driver is for RDA8810PL SoC's UART. 1496 Say 'Y' here if you wish to use the on-board serial port. 1497 Otherwise, say 'N'. 1498 1499config SERIAL_RDA_CONSOLE 1500 bool "Console on RDA Micro serial port" 1501 depends on SERIAL_RDA=y 1502 select SERIAL_CORE_CONSOLE 1503 select SERIAL_EARLYCON 1504 default y 1505 help 1506 Say 'Y' here if you wish to use the RDA8810PL UART as the system 1507 console. Only earlycon is implemented currently. 1508 1509config SERIAL_MILBEAUT_USIO 1510 tristate "Milbeaut USIO/UART serial port support" 1511 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF) 1512 default ARCH_MILBEAUT 1513 select SERIAL_CORE 1514 help 1515 This selects the USIO/UART IP found in Socionext Milbeaut SoCs. 1516 1517config SERIAL_MILBEAUT_USIO_PORTS 1518 int "Maximum number of CSIO/UART ports (1-8)" 1519 range 1 8 1520 depends on SERIAL_MILBEAUT_USIO 1521 default "4" 1522 1523config SERIAL_MILBEAUT_USIO_CONSOLE 1524 bool "Support for console on MILBEAUT USIO/UART serial port" 1525 depends on SERIAL_MILBEAUT_USIO=y 1526 default y 1527 select SERIAL_CORE_CONSOLE 1528 select SERIAL_EARLYCON 1529 help 1530 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut 1531 SoCs as the system console (the system console is the device which 1532 receives all kernel messages and warnings and which allows logins in 1533 single user mode). 1534 1535config SERIAL_LITEUART 1536 tristate "LiteUART serial port support" 1537 depends on HAS_IOMEM 1538 depends on OF || COMPILE_TEST 1539 depends on LITEX || COMPILE_TEST 1540 select SERIAL_CORE 1541 help 1542 This driver is for the FPGA-based LiteUART serial controller from LiteX 1543 SoC builder. 1544 1545 Say 'Y' or 'M' here if you wish to use the LiteUART serial controller. 1546 Otherwise, say 'N'. 1547 1548config SERIAL_LITEUART_MAX_PORTS 1549 int "Maximum number of LiteUART ports" 1550 depends on SERIAL_LITEUART 1551 default "1" 1552 help 1553 Set this to the maximum number of serial ports you want the driver 1554 to support. 1555 1556config SERIAL_LITEUART_CONSOLE 1557 bool "LiteUART serial port console support" 1558 depends on SERIAL_LITEUART=y 1559 select SERIAL_CORE_CONSOLE 1560 select SERIAL_EARLYCON 1561 help 1562 Say 'Y' or 'M' here if you wish to use the FPGA-based LiteUART serial 1563 controller from LiteX SoC builder as the system console 1564 (the system console is the device which receives all kernel messages 1565 and warnings and which allows logins in single user mode). 1566 Otherwise, say 'N'. 1567 1568config SERIAL_SUNPLUS 1569 tristate "Sunplus UART support" 1570 depends on ARCH_SUNPLUS || COMPILE_TEST 1571 select SERIAL_CORE 1572 help 1573 Select this option if you would like to use Sunplus serial port on 1574 Sunplus SoC SP7021. 1575 If you enable this option, Sunplus serial ports in the system will 1576 be registered as ttySUPx. 1577 This driver can also be built as a module. If so, the module will be 1578 called sunplus-uart. 1579 1580config SERIAL_SUNPLUS_CONSOLE 1581 bool "Console on Sunplus UART" 1582 depends on SERIAL_SUNPLUS 1583 select SERIAL_CORE_CONSOLE 1584 select SERIAL_EARLYCON 1585 help 1586 Select this option if you would like to use a Sunplus UART as the 1587 system console. 1588 Even if you say Y here, the currently visible virtual console 1589 (/dev/tty0) will still be used as the system console by default, but 1590 you can alter that using a kernel command line option such as 1591 "console=ttySUPx". 1592 1593endmenu 1594 1595config SERIAL_MCTRL_GPIO 1596 tristate