1# SPDX-License-Identifier: GPL-2.0 2# 3# Serial device configuration 4# 5 6if TTY 7 8menu "Serial drivers" 9 depends on HAS_IOMEM 10 11config SERIAL_EARLYCON 12 bool 13 help 14 Support for early consoles with the earlycon parameter. This enables 15 the console before standard serial driver is probed. The console is 16 enabled when early_param is processed. 17 18source "drivers/tty/serial/8250/Kconfig" 19 20comment "Non-8250 serial port support" 21 22config SERIAL_AMBA_PL010 23 tristate "ARM AMBA PL010 serial port support" 24 depends on ARM_AMBA 25 select SERIAL_CORE 26 help 27 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have 28 an Integrator/AP or Integrator/PP2 platform, or if you have a 29 Cirrus Logic EP93xx CPU, say Y or M here. 30 31 If unsure, say N. 32 33config SERIAL_AMBA_PL010_CONSOLE 34 bool "Support for console on AMBA serial port" 35 depends on SERIAL_AMBA_PL010=y 36 select SERIAL_CORE_CONSOLE 37 ---help--- 38 Say Y here if you wish to use an AMBA PrimeCell UART as the system 39 console (the system console is the device which receives all kernel 40 messages and warnings and which allows logins in single user mode). 41 42 Even if you say Y here, the currently visible framebuffer console 43 (/dev/tty0) will still be used as the system console by default, but 44 you can alter that using a kernel command line option such as 45 "console=ttyAM0". (Try "man bootparam" or see the documentation of 46 your boot loader (lilo or loadlin) about how to pass options to the 47 kernel at boot time.) 48 49config SERIAL_AMBA_PL011 50 tristate "ARM AMBA PL011 serial port support" 51 depends on ARM_AMBA 52 select SERIAL_CORE 53 help 54 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have 55 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M 56 here. 57 58 If unsure, say N. 59 60config SERIAL_AMBA_PL011_CONSOLE 61 bool "Support for console on AMBA serial port" 62 depends on SERIAL_AMBA_PL011=y 63 select SERIAL_CORE_CONSOLE 64 select SERIAL_EARLYCON 65 ---help--- 66 Say Y here if you wish to use an AMBA PrimeCell UART as the system 67 console (the system console is the device which receives all kernel 68 messages and warnings and which allows logins in single user mode). 69 70 Even if you say Y here, the currently visible framebuffer console 71 (/dev/tty0) will still be used as the system console by default, but 72 you can alter that using a kernel command line option such as 73 "console=ttyAMA0". (Try "man bootparam" or see the documentation of 74 your boot loader (lilo or loadlin) about how to pass options to the 75 kernel at boot time.) 76 77config SERIAL_EARLYCON_ARM_SEMIHOST 78 bool "Early console using ARM semihosting" 79 depends on ARM64 || ARM 80 select SERIAL_CORE 81 select SERIAL_CORE_CONSOLE 82 select SERIAL_EARLYCON 83 help 84 Support for early debug console using ARM semihosting. This enables 85 the console before standard serial driver is probed. This is enabled 86 with "earlycon=smh" on the kernel command line. The console is 87 enabled when early_param is processed. 88 89config SERIAL_EARLYCON_RISCV_SBI 90 bool "Early console using RISC-V SBI" 91 depends on RISCV 92 select SERIAL_CORE 93 select SERIAL_CORE_CONSOLE 94 select SERIAL_EARLYCON 95 help 96 Support for early debug console using RISC-V SBI. This enables 97 the console before standard serial driver is probed. This is enabled 98 with "earlycon=sbi" on the kernel command line. The console is 99 enabled when early_param is processed. 100 101config SERIAL_SB1250_DUART 102 tristate "BCM1xxx on-chip DUART serial support" 103 depends on SIBYTE_SB1xxx_SOC=y 104 select SERIAL_CORE 105 default y 106 ---help--- 107 Support for the asynchronous serial interface (DUART) included in 108 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that 109 the letter D in DUART stands for "dual", which is how the device 110 is implemented. Depending on the SOC configuration there may be 111 one or more DUARTs available of which all are handled. 112 113 If unsure, say Y. To compile this driver as a module, choose M here: 114 the module will be called sb1250-duart. 115 116config SERIAL_SB1250_DUART_CONSOLE 117 bool "Support for console on a BCM1xxx DUART serial port" 118 depends on SERIAL_SB1250_DUART=y 119 select SERIAL_CORE_CONSOLE 120 default y 121 ---help--- 122 If you say Y here, it will be possible to use a serial port as the 123 system console (the system console is the device which receives all 124 kernel messages and warnings and which allows logins in single user 125 mode). 126 127 If unsure, say Y. 128 129config SERIAL_ATMEL 130 bool "AT91 on-chip serial port support" 131 depends on ARCH_AT91 || 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 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_KS8695 201 bool "Micrel KS8695 (Centaur) serial port support" 202 depends on ARCH_KS8695 203 select SERIAL_CORE 204 help 205 This selects the Micrel Centaur KS8695 UART. Say Y here. 206 207config SERIAL_KS8695_CONSOLE 208 bool "Support for console on KS8695 (Centaur) serial port" 209 depends on SERIAL_KS8695=y 210 select SERIAL_CORE_CONSOLE 211 help 212 Say Y here if you wish to use a KS8695 (Centaur) UART as the 213 system console (the system console is the device which 214 receives all kernel messages and warnings and which allows 215 logins in single user mode). 216 217config SERIAL_MESON 218 tristate "Meson serial port support" 219 depends on ARCH_MESON 220 select SERIAL_CORE 221 help 222 This enables the driver for the on-chip UARTs of the Amlogic 223 MesonX processors. 224 225config SERIAL_MESON_CONSOLE 226 bool "Support for console on meson" 227 depends on SERIAL_MESON=y 228 select SERIAL_CORE_CONSOLE 229 select SERIAL_EARLYCON 230 help 231 Say Y here if you wish to use a Amlogic MesonX UART as the 232 system console (the system console is the device which 233 receives all kernel messages and warnings and which allows 234 logins in single user mode) as /dev/ttyAMLx. 235 236config SERIAL_CLPS711X 237 tristate "CLPS711X serial port support" 238 depends on ARCH_CLPS711X || COMPILE_TEST 239 select SERIAL_CORE 240 select SERIAL_MCTRL_GPIO if GPIOLIB 241 help 242 This enables the driver for the on-chip UARTs of the Cirrus 243 Logic EP711x/EP721x/EP731x processors. 244 245config SERIAL_CLPS711X_CONSOLE 246 bool "Support for console on CLPS711X serial port" 247 depends on SERIAL_CLPS711X=y 248 select SERIAL_CORE_CONSOLE 249 help 250 Even if you say Y here, the currently visible virtual console 251 (/dev/tty0) will still be used as the system console by default, but 252 you can alter that using a kernel command line option such as 253 "console=ttyCL1". 254 255config SERIAL_SAMSUNG 256 tristate "Samsung SoC serial support" 257 depends on PLAT_SAMSUNG || ARCH_EXYNOS 258 select SERIAL_CORE 259 help 260 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs, 261 providing /dev/ttySAC0, 1 and 2 (note, some machines may not 262 provide all of these ports, depending on how the serial port 263 pins are configured. 264 265config SERIAL_SAMSUNG_UARTS_4 266 bool 267 depends on SERIAL_SAMSUNG 268 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442) 269 help 270 Internal node for the common case of 4 Samsung compatible UARTs 271 272config SERIAL_SAMSUNG_UARTS 273 int 274 depends on SERIAL_SAMSUNG 275 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416 276 default 3 277 help 278 Select the number of available UART ports for the Samsung S3C 279 serial driver 280 281config SERIAL_SAMSUNG_DEBUG 282 bool "Samsung SoC serial debug" 283 depends on SERIAL_SAMSUNG && DEBUG_LL 284 help 285 Add support for debugging the serial driver. Since this is 286 generally being used as a console, we use our own output 287 routines that go via the low-level debug printascii() 288 function. 289 290config SERIAL_SAMSUNG_CONSOLE 291 bool "Support for console on Samsung SoC serial port" 292 depends on SERIAL_SAMSUNG=y 293 select SERIAL_CORE_CONSOLE 294 select SERIAL_EARLYCON 295 help 296 Allow selection of the S3C24XX on-board serial ports for use as 297 an virtual console. 298 299 Even if you say Y here, the currently visible virtual console 300 (/dev/tty0) will still be used as the system console by default, but 301 you can alter that using a kernel command line option such as 302 "console=ttySACx". (Try "man bootparam" or see the documentation of 303 your boot loader about how to pass options to the kernel at 304 boot time.) 305 306config SERIAL_SIRFSOC 307 tristate "SiRF SoC Platform Serial port support" 308 depends on ARCH_SIRF 309 select SERIAL_CORE 310 help 311 Support for the on-chip UART on the CSR SiRFprimaII series, 312 providing /dev/ttySiRF0, 1 and 2 (note, some machines may not 313 provide all of these ports, depending on how the serial port 314 pins are configured). 315 316config SERIAL_SIRFSOC_CONSOLE 317 bool "Support for console on SiRF SoC serial port" 318 depends on SERIAL_SIRFSOC=y 319 select SERIAL_CORE_CONSOLE 320 help 321 Even if you say Y here, the currently visible virtual console 322 (/dev/tty0) will still be used as the system console by default, but 323 you can alter that using a kernel command line option such as 324 "console=ttySiRFx". (Try "man bootparam" or see the documentation of 325 your boot loader about how to pass options to the kernel at 326 boot time.) 327 328config SERIAL_TEGRA 329 tristate "NVIDIA Tegra20/30 SoC serial controller" 330 depends on ARCH_TEGRA && TEGRA20_APB_DMA 331 select SERIAL_CORE 332 help 333 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs 334 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not 335 provide all of these ports, depending on how the serial port 336 are enabled). This driver uses the APB DMA to achieve higher baudrate 337 and better performance. 338 339config SERIAL_TEGRA_TCU 340 tristate "NVIDIA Tegra Combined UART" 341 depends on ARCH_TEGRA && TEGRA_HSP_MBOX 342 select SERIAL_CORE 343 help 344 Support for the mailbox-based TCU (Tegra Combined UART) serial port. 345 TCU is a virtual serial port that allows multiplexing multiple data 346 streams into a single hardware serial port. 347 348config SERIAL_TEGRA_TCU_CONSOLE 349 bool "Support for console on a Tegra TCU serial port" 350 depends on SERIAL_TEGRA_TCU=y 351 select SERIAL_CORE_CONSOLE 352 default y 353 ---help--- 354 If you say Y here, it will be possible to use a the Tegra TCU as the 355 system console (the system console is the device which receives all 356 kernel messages and warnings and which allows logins in single user 357 mode). 358 359 If unsure, say Y. 360 361config SERIAL_MAX3100 362 tristate "MAX3100 support" 363 depends on SPI 364 select SERIAL_CORE 365 help 366 MAX3100 chip support 367 368config SERIAL_MAX310X 369 tristate "MAX310X support" 370 depends on SPI_MASTER 371 select SERIAL_CORE 372 select REGMAP_SPI if SPI_MASTER 373 help 374 This selects support for an advanced UART from Maxim (Dallas). 375 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830. 376 Each IC contains 128 words each of receive and transmit FIFO 377 that can be controlled through I2C or high-speed SPI. 378 379 Say Y here if you want to support this ICs. 380 381config SERIAL_DZ 382 bool "DECstation DZ serial driver" 383 depends on MACH_DECSTATION && 32BIT 384 select SERIAL_CORE 385 default y 386 ---help--- 387 DZ11-family serial controllers for DECstations and VAXstations, 388 including the DC7085, M7814, and M7819. 389 390config SERIAL_DZ_CONSOLE 391 bool "Support console on DECstation DZ serial driver" 392 depends on SERIAL_DZ=y 393 select SERIAL_CORE_CONSOLE 394 default y 395 ---help--- 396 If you say Y here, it will be possible to use a serial port as the 397 system console (the system console is the device which receives all 398 kernel messages and warnings and which allows logins in single user 399 mode). 400 401 Note that the firmware uses ttyS3 as the serial console on 402 DECstations that use this driver. 403 404 If unsure, say Y. 405 406config SERIAL_ZS 407 tristate "DECstation Z85C30 serial support" 408 depends on MACH_DECSTATION 409 select SERIAL_CORE 410 default y 411 ---help--- 412 Support for the Zilog 85C350 serial communications controller used 413 for serial ports in newer DECstation systems. These include the 414 DECsystem 5900 and all models of the DECstation and DECsystem 5000 415 systems except from model 200. 416 417 If unsure, say Y. To compile this driver as a module, choose M here: 418 the module will be called zs. 419 420config SERIAL_ZS_CONSOLE 421 bool "Support for console on a DECstation Z85C30 serial port" 422 depends on SERIAL_ZS=y 423 select SERIAL_CORE_CONSOLE 424 default y 425 ---help--- 426 If you say Y here, it will be possible to use a serial port as the 427 system console (the system console is the device which receives all 428 kernel messages and warnings and which allows logins in single user 429 mode). 430 431 Note that the firmware uses ttyS1 as the serial console on the 432 Maxine and ttyS3 on the others using this driver. 433 434 If unsure, say Y. 435 436config SERIAL_21285 437 tristate "DC21285 serial port support" 438 depends on FOOTBRIDGE 439 select SERIAL_CORE 440 help 441 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/ 442 PCI bridge you can enable its onboard serial port by enabling this 443 option. 444 445config SERIAL_21285_CONSOLE 446 bool "Console on DC21285 serial port" 447 depends on SERIAL_21285=y 448 select SERIAL_CORE_CONSOLE 449 help 450 If you have enabled the serial port on the 21285 footbridge you can 451 make it the console by answering Y to this option. 452 453 Even if you say Y here, the currently visible virtual console 454 (/dev/tty0) will still be used as the system console by default, but 455 you can alter that using a kernel command line option such as 456 "console=ttyFB". (Try "man bootparam" or see the documentation of 457 your boot loader (lilo or loadlin) about how to pass options to the 458 kernel at boot time.) 459 460config SERIAL_PXA 461 bool "PXA serial port support (DEPRECATED)" 462 depends on ARCH_PXA || ARCH_MMP 463 select SERIAL_CORE 464 select SERIAL_8250_PXA if SERIAL_8250=y 465 select SERIAL_PXA_NON8250 if !SERIAL_8250=y 466 help 467 If you have a machine based on an Intel XScale PXA2xx CPU you 468 can enable its onboard serial ports by enabling this option. 469 470 Unless you have a specific need, you should use SERIAL_8250_PXA 471 instead of this. 472 473config SERIAL_PXA_NON8250 474 bool 475 depends on !SERIAL_8250 476 477config SERIAL_PXA_CONSOLE 478 bool "Console on PXA serial port (DEPRECATED)" 479 depends on SERIAL_PXA 480 select SERIAL_CORE_CONSOLE 481 select SERIAL_8250_CONSOLE if SERIAL_8250=y 482 help 483 If you have enabled the serial port on the Intel XScale PXA 484 CPU you can make it the console by answering Y to this option. 485 486 Even if you say Y here, the currently visible virtual console 487 (/dev/tty0) will still be used as the system console by default, but 488 you can alter that using a kernel command line option such as 489 "console=ttySA0". (Try "man bootparam" or see the documentation of 490 your boot loader (lilo or loadlin) about how to pass options to the 491 kernel at boot time.) 492 493 Unless you have a specific need, you should use SERIAL_8250_PXA 494 and SERIAL_8250_CONSOLE instead of this. 495 496config SERIAL_SA1100 497 bool "SA1100 serial port support" 498 depends on ARCH_SA1100 499 select SERIAL_CORE 500 select SERIAL_MCTRL_GPIO if GPIOLIB 501 help 502 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you 503 can enable its onboard serial port by enabling this option. 504 Please read <file:Documentation/arm/sa1100/serial_uart.rst> for further 505 info. 506 507config SERIAL_SA1100_CONSOLE 508 bool "Console on SA1100 serial port" 509 depends on SERIAL_SA1100 510 select SERIAL_CORE_CONSOLE 511 help 512 If you have enabled the serial port on the SA1100/SA1110 StrongARM 513 CPU you can make it the console by answering Y to this option. 514 515 Even if you say Y here, the currently visible virtual console 516 (/dev/tty0) will still be used as the system console by default, but 517 you can alter that using a kernel command line option such as 518 "console=ttySA0". (Try "man bootparam" or see the documentation of 519 your boot loader (lilo or loadlin) about how to pass options to the 520 kernel at boot time.) 521 522config SERIAL_IMX 523 tristate "IMX serial port support" 524 depends on ARCH_MXC || COMPILE_TEST 525 select SERIAL_CORE 526 select RATIONAL 527 select SERIAL_MCTRL_GPIO if GPIOLIB 528 help 529 If you have a machine based on a Motorola IMX CPU you 530 can enable its onboard serial port by enabling this option. 531 532config SERIAL_IMX_CONSOLE 533 bool "Console on IMX serial port" 534 depends on SERIAL_IMX=y 535 select SERIAL_CORE_CONSOLE 536 select SERIAL_EARLYCON if OF 537 help 538 If you have enabled the serial port on the Freescale IMX 539 CPU you can make it the console by answering Y to this option. 540 541 Even if you say Y here, the currently visible virtual console 542 (/dev/tty0) will still be used as the system console by default, but 543 you can alter that using a kernel command line option such as 544 "console=ttymxc0". (Try "man bootparam" or see the documentation of 545 your bootloader about how to pass options to the kernel at boot time.) 546 547config SERIAL_UARTLITE 548 tristate "Xilinx uartlite serial port support" 549 depends on HAS_IOMEM 550 select SERIAL_CORE 551 help 552 Say Y here if you want to use the Xilinx uartlite serial controller. 553 554 To compile this driver as a module, choose M here: the 555 module will be called uartlite. 556 557config SERIAL_UARTLITE_CONSOLE 558 bool "Support for console on Xilinx uartlite serial port" 559 depends on SERIAL_UARTLITE=y 560 select SERIAL_CORE_CONSOLE 561 select SERIAL_EARLYCON 562 help 563 Say Y here if you wish to use a Xilinx uartlite as the system 564 console (the system console is the device which receives all kernel 565 messages and warnings and which allows logins in single user mode). 566 567config SERIAL_UARTLITE_NR_UARTS 568 int "Maximum number of uartlite serial ports" 569 depends on SERIAL_UARTLITE 570 range 1 256 571 default 1 572 help 573 Set this to the number of uartlites in your system, or the number 574 you think you might implement. 575 576config SERIAL_SUNCORE 577 bool 578 depends on SPARC 579 select SERIAL_CORE 580 select SERIAL_CORE_CONSOLE 581 default y 582 583config SERIAL_SUNZILOG 584 tristate "Sun Zilog8530 serial support" 585 depends on SPARC 586 help 587 This driver supports the Zilog8530 serial ports found on many Sparc 588 systems. Say Y or M if you want to be able to these serial ports. 589 590config SERIAL_SUNZILOG_CONSOLE 591 bool "Console on Sun Zilog8530 serial port" 592 depends on SERIAL_SUNZILOG=y 593 help 594 If you would like to be able to use the Zilog8530 serial port 595 on your Sparc system as the console, you can do so by answering 596 Y to this option. 597 598config SERIAL_SUNSU 599 tristate "Sun SU serial support" 600 depends on SPARC && PCI 601 help 602 This driver supports the 8250 serial ports that run the keyboard and 603 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able 604 to these serial ports. 605 606config SERIAL_SUNSU_CONSOLE 607 bool "Console on Sun SU serial port" 608 depends on SERIAL_SUNSU=y 609 help 610 If you would like to be able to use the SU serial port 611 on your Sparc system as the console, you can do so by answering 612 Y to this option. 613 614config SERIAL_MUX 615 tristate "Serial MUX support" 616 depends on GSC 617 select SERIAL_CORE 618 default y 619 ---help--- 620 Saying Y here will enable the hardware MUX serial driver for 621 the Nova, K class systems and D class with a 'remote control card'. 622 The hardware MUX is not 8250/16550 compatible therefore the 623 /dev/ttyB0 device is shared between the Serial MUX and the PDC 624 software console. The following steps need to be completed to use 625 the Serial MUX: 626 627 1. create the device entry (mknod /dev/ttyB0 c 11 0) 628 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 629 3. Add device ttyB0 to /etc/securetty (if you want to log on as 630 root on this console.) 631 4. Change the kernel command console parameter to: console=ttyB0 632 633config SERIAL_MUX_CONSOLE 634 bool "Support for console on serial MUX" 635 depends on SERIAL_MUX=y 636 select SERIAL_CORE_CONSOLE 637 default y 638 639config PDC_CONSOLE 640 bool "PDC software console support" 641 depends on PARISC && !SERIAL_MUX && VT 642 help 643 Saying Y here will enable the software based PDC console to be 644 used as the system console. This is useful for machines in 645 which the hardware based console has not been written yet. The 646 following steps must be completed to use the PDC console: 647 648 1. create the device entry (mknod /dev/ttyB0 c 11 0) 649 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 650 3. Add device ttyB0 to /etc/securetty (if you want to log on as 651 root on this console.) 652 4. Change the kernel command console parameter to: console=ttyB0 653 654config SERIAL_SUNSAB 655 tristate "Sun Siemens SAB82532 serial support" 656 depends on SPARC && PCI 657 help 658 This driver supports the Siemens SAB82532 DUSCC serial ports on newer 659 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these 660 serial ports. 661 662config SERIAL_SUNSAB_CONSOLE 663 bool "Console on Sun Siemens SAB82532 serial port" 664 depends on SERIAL_SUNSAB=y 665 help 666 If you would like to be able to use the SAB82532 serial port 667 on your Sparc system as the console, you can do so by answering 668 Y to this option. 669 670config SERIAL_SUNHV 671 bool "Sun4v Hypervisor Console support" 672 depends on SPARC64 673 help 674 This driver supports the console device found on SUN4V Sparc 675 systems. Say Y if you want to be able to use this device. 676 677config SERIAL_IP22_ZILOG 678 tristate "SGI Zilog8530 serial support" 679 depends on SGI_HAS_ZILOG 680 select SERIAL_CORE 681 help 682 This driver supports the Zilog8530 serial ports found on SGI 683 systems. Say Y or M if you want to be able to these serial ports. 684 685config SERIAL_IP22_ZILOG_CONSOLE 686 bool "Console on SGI Zilog8530 serial port" 687 depends on SERIAL_IP22_ZILOG=y 688 select SERIAL_CORE_CONSOLE 689 690config SERIAL_SH_SCI 691 tristate "SuperH SCI(F) serial port support" 692 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST 693 select SERIAL_CORE 694 select SERIAL_MCTRL_GPIO if GPIOLIB 695 696config SERIAL_SH_SCI_NR_UARTS 697 int "Maximum number of SCI(F) serial ports" if EXPERT 698 range 1 64 if 64BIT 699 range 1 32 if !64BIT 700 depends on SERIAL_SH_SCI 701 default "3" if H8300 702 default "10" if SUPERH 703 default "18" if ARCH_RENESAS 704 default "2" 705 706config SERIAL_SH_SCI_CONSOLE 707 bool "Support for console on SuperH SCI(F)" if EXPERT 708 depends on SERIAL_SH_SCI=y 709 select SERIAL_CORE_CONSOLE 710 default y 711 712config SERIAL_SH_SCI_EARLYCON 713 bool "Support for early console on SuperH SCI(F)" if EXPERT 714 depends on SERIAL_SH_SCI=y 715 select SERIAL_CORE_CONSOLE 716 select SERIAL_EARLYCON 717 default ARCH_RENESAS || H8300 718 719config SERIAL_SH_SCI_DMA 720 bool "DMA support" if EXPERT 721 depends on SERIAL_SH_SCI && DMA_ENGINE 722 default ARCH_RENESAS 723 724config SERIAL_PNX8XXX 725 bool "Enable PNX8XXX SoCs' UART Support" 726 depends on SOC_PNX833X 727 select SERIAL_CORE 728 help 729 If you have a MIPS-based Philips SoC such as PNX8330 and you want 730 to use serial ports, say Y. Otherwise, say N. 731 732config SERIAL_PNX8XXX_CONSOLE 733 bool "Enable PNX8XX0 serial console" 734 depends on SERIAL_PNX8XXX 735 select SERIAL_CORE_CONSOLE 736 help 737 If you have a MIPS-based Philips SoC such as PNX8330 and you want 738 to use serial console, say Y. Otherwise, say N. 739 740config SERIAL_HS_LPC32XX 741 tristate "LPC32XX high speed serial port support" 742 depends on ARCH_LPC32XX && OF 743 select SERIAL_CORE 744 help 745 Support for the LPC32XX high speed serial ports (up to 900kbps). 746 Those are UARTs completely different from the Standard UARTs on the 747 LPC32XX SoC. 748 Choose M or Y here to build this driver. 749 750config SERIAL_HS_LPC32XX_CONSOLE 751 bool "Enable LPC32XX high speed UART serial console" 752 depends on SERIAL_HS_LPC32XX=y 753 select SERIAL_CORE_CONSOLE 754 help 755 If you would like to be able to use one of the high speed serial 756 ports on the LPC32XX as the console, you can do so by answering 757 Y to this option. 758 759config SERIAL_CORE 760 tristate 761 762config SERIAL_CORE_CONSOLE 763 bool 764 765config CONSOLE_POLL 766 bool 767 768config SERIAL_MCF 769 bool "Coldfire serial support" 770 depends on COLDFIRE 771 select SERIAL_CORE 772 help 773 This serial driver supports the Freescale Coldfire serial ports. 774 775config SERIAL_MCF_BAUDRATE 776 int "Default baudrate for Coldfire serial ports" 777 depends on SERIAL_MCF 778 default 19200 779 help 780 This setting lets you define what the default baudrate is for the 781 ColdFire serial ports. The usual default varies from board to board, 782 and this setting is a way of catering for that. 783 784config SERIAL_MCF_CONSOLE 785 bool "Coldfire serial console support" 786 depends on SERIAL_MCF 787 select SERIAL_CORE_CONSOLE 788 help 789 Enable a ColdFire internal serial port to be the system console. 790 791config SERIAL_PMACZILOG 792 tristate "Mac or PowerMac z85c30 ESCC support" 793 depends on (M68K && MAC) || PPC_PMAC 794 select SERIAL_CORE 795 help 796 This driver supports the Zilog z85C30 serial ports found on 797 (Power)Mac machines. 798 Say Y or M if you want to be able to these serial ports. 799 800config SERIAL_PMACZILOG_TTYS 801 bool "Use ttySn device nodes for Zilog z85c30" 802 depends on SERIAL_PMACZILOG 803 help 804 The pmac_zilog driver for the z85C30 chip on many powermacs 805 historically used the device numbers for /dev/ttySn. The 806 8250 serial port driver also uses these numbers, which means 807 the two drivers being unable to coexist; you could not use 808 both z85C30 and 8250 type ports at the same time. 809 810 If this option is not selected, the pmac_zilog driver will 811 use the device numbers allocated for /dev/ttyPZn. This allows 812 the pmac_zilog and 8250 drivers to co-exist, but may cause 813 existing userspace setups to break. Programs that need to 814 access the built-in serial ports on powermacs will need to 815 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn. 816 817 If you enable this option, any z85c30 ports in the system will 818 be registered as ttyS0 onwards as in the past, and you will be 819 unable to use the 8250 module for PCMCIA or other 16C550-style 820 UARTs. 821 822 Say N unless you need the z85c30 ports on your (Power)Mac 823 to appear as /dev/ttySn. 824 825config SERIAL_PMACZILOG_CONSOLE 826 bool "Console on Mac or PowerMac z85c30 serial port" 827 depends on SERIAL_PMACZILOG=y 828 select SERIAL_CORE_CONSOLE 829 help 830 If you would like to be able to use the z85c30 serial port 831 on your (Power)Mac as the console, you can do so by answering 832 Y to this option. 833 834config SERIAL_CPM 835 tristate "CPM SCC/SMC serial port support" 836 depends on CPM2 || CPM1 837 select SERIAL_CORE 838 help 839 This driver supports the SCC and SMC serial ports on Motorola 840 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx) 841 842config SERIAL_CPM_CONSOLE 843 bool "Support for console on CPM SCC/SMC serial port" 844 depends on SERIAL_CPM=y 845 select SERIAL_CORE_CONSOLE 846 help 847 Say Y here if you wish to use a SCC or SMC CPM UART as the system 848 console (the system console is the device which receives all kernel 849 messages and warnings and which allows logins in single user mode). 850 851 Even if you say Y here, the currently visible framebuffer console 852 (/dev/tty0) will still be used as the system console by default, but 853 you can alter that using a kernel command line option such as 854 "console=ttyCPM0". (Try "man bootparam" or see the documentation of 855 your boot loader (lilo or loadlin) about how to pass options to the 856 kernel at boot time.) 857 858config SERIAL_SGI_L1_CONSOLE 859 bool "SGI Altix L1 serial console support" 860 depends on IA64_GENERIC || IA64_SGI_SN2 861 select SERIAL_CORE 862 select SERIAL_CORE_CONSOLE 863 help 864 If you have an SGI Altix and you would like to use the system 865 controller serial port as your console (you want this!), 866 say Y. Otherwise, say N. 867 868config SERIAL_PIC32 869 tristate "Microchip PIC32 serial support" 870 depends on MACH_PIC32 871 select SERIAL_CORE 872 help 873 If you have a PIC32, this driver supports the serial ports. 874 875 Say Y or M to use PIC32 serial ports, otherwise say N. Note that 876 to use a serial port as a console, this must be included in kernel and 877 not as a module. 878 879config SERIAL_PIC32_CONSOLE 880 bool "PIC32 serial console support" 881 depends on SERIAL_PIC32 882 select SERIAL_CORE_CONSOLE 883 help 884 If you have a PIC32, this driver supports the putting a console on one 885 of the serial ports. 886 887 Say Y to use the PIC32 console, otherwise say N. 888 889config SERIAL_MPC52xx 890 tristate "Freescale MPC52xx/MPC512x family PSC serial support" 891 depends on PPC_MPC52xx || PPC_MPC512x 892 select SERIAL_CORE 893 help 894 This driver supports MPC52xx and MPC512x PSC serial ports. If you would 895 like to use them, you must answer Y or M to this option. Note that 896 for use as console, it must be included in kernel and not as a 897 module. 898 899config SERIAL_MPC52xx_CONSOLE 900 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port" 901 depends on SERIAL_MPC52xx=y 902 select SERIAL_CORE_CONSOLE 903 help 904 Select this options if you'd like to use one of the PSC serial port 905 of the Freescale MPC52xx family as a console. 906 907config SERIAL_MPC52xx_CONSOLE_BAUD 908 int "Freescale MPC52xx/MPC512x family PSC serial port baud" 909 depends on SERIAL_MPC52xx_CONSOLE=y 910 default "9600" 911 help 912 Select the MPC52xx console baud rate. 913 This value is only used if the bootloader doesn't pass in the 914 console baudrate 915 916config SERIAL_ICOM 917 tristate "IBM Multiport Serial Adapter" 918 depends on PCI && PPC_PSERIES 919 select SERIAL_CORE 920 select FW_LOADER 921 help 922 This driver is for a family of multiport serial adapters 923 including 2 port RVX, 2 port internal modem, 4 port internal 924 modem and a split 1 port RVX and 1 port internal modem. 925 926 This driver can also be built as a module. If so, the module 927 will be called icom. 928 929config SERIAL_TXX9 930 bool "TMPTX39XX/49XX SIO support" 931 depends on HAS_TXX9_SERIAL 932 select SERIAL_CORE 933 default y 934 935config HAS_TXX9_SERIAL 936 bool 937 938config SERIAL_TXX9_NR_UARTS 939 int "Maximum number of TMPTX39XX/49XX SIO ports" 940 depends on SERIAL_TXX9 941 default "6" 942 943config SERIAL_TXX9_CONSOLE 944 bool "TMPTX39XX/49XX SIO Console support" 945 depends on SERIAL_TXX9=y 946 select SERIAL_CORE_CONSOLE 947 948config SERIAL_TXX9_STDSERIAL 949 bool "TX39XX/49XX SIO act as standard serial" 950 depends on !SERIAL_8250 && SERIAL_TXX9 951 952config SERIAL_VR41XX 953 tristate "NEC VR4100 series Serial Interface Unit support" 954 depends on CPU_VR41XX 955 select SERIAL_CORE 956 help 957 If you have a NEC VR4100 series processor and you want to use 958 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU) 959 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N. 960 961config SERIAL_VR41XX_CONSOLE 962 bool "Enable NEC VR4100 series Serial Interface Unit console" 963 depends on SERIAL_VR41XX=y 964 select SERIAL_CORE_CONSOLE 965 help 966 If you have a NEC VR4100 series processor and you want to use 967 a console on a serial port, say Y. Otherwise, say N. 968 969config SERIAL_JSM 970 tristate "Digi International NEO and Classic PCI Support" 971 depends on PCI 972 select SERIAL_CORE 973 help 974 This is a driver for Digi International's Neo and Classic series 975 of cards which provide multiple serial ports. You would need 976 something like this to connect more than two modems to your Linux 977 box, for instance in order to become a dial-in server. This driver 978 supports PCI boards only. 979 980 If you have a card like this, say Y here, otherwise say N. 981 982 To compile this driver as a module, choose M here: the 983 module will be called jsm. 984 985config SERIAL_SGI_IOC4 986 tristate "SGI IOC4 controller serial support" 987 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4 988 select SERIAL_CORE 989 help 990 If you have an SGI Altix with an IOC4 based Base IO card 991 and wish to use the serial ports on this card, say Y. 992 Otherwise, say N. 993 994config SERIAL_SGI_IOC3 995 tristate "SGI Altix IOC3 serial support" 996 depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC3 997 select SERIAL_CORE 998 help 999 If you have an SGI Altix with an IOC3 serial card, 1000 say Y or M. Otherwise, say N. 1001 1002config SERIAL_MSM 1003 tristate "MSM on-chip serial port support" 1004 depends on ARCH_QCOM 1005 select SERIAL_CORE 1006 1007config SERIAL_MSM_CONSOLE 1008 bool "MSM serial console support" 1009 depends on SERIAL_MSM=y 1010 select SERIAL_CORE_CONSOLE 1011 select SERIAL_EARLYCON 1012 1013config SERIAL_QCOM_GENI 1014 tristate "QCOM on-chip GENI based serial port support" 1015 depends on ARCH_QCOM || COMPILE_TEST 1016 depends on QCOM_GENI_SE 1017 select SERIAL_CORE 1018 1019config SERIAL_QCOM_GENI_CONSOLE 1020 bool "QCOM GENI Serial Console support" 1021 depends on SERIAL_QCOM_GENI=y 1022 select SERIAL_CORE_CONSOLE 1023 select SERIAL_EARLYCON 1024 help 1025 Serial console driver for Qualcomm Technologies Inc's GENI based 1026 QUP hardware. 1027 1028config SERIAL_VT8500 1029 bool "VIA VT8500 on-chip serial port support" 1030 depends on ARCH_VT8500 1031 select SERIAL_CORE 1032 1033config SERIAL_VT8500_CONSOLE 1034 bool "VIA VT8500 serial console support" 1035 depends on SERIAL_VT8500=y 1036 select SERIAL_CORE_CONSOLE 1037 1038config SERIAL_NETX 1039 tristate "NetX serial port support" 1040 depends on ARCH_NETX 1041 select SERIAL_CORE 1042 help 1043 If you have a machine based on a Hilscher NetX SoC you 1044 can enable its onboard serial port by enabling this option. 1045 1046 To compile this driver as a module, choose M here: the 1047 module will be called netx-serial. 1048 1049config SERIAL_NETX_CONSOLE 1050 bool "Console on NetX serial port" 1051 depends on SERIAL_NETX=y 1052 select SERIAL_CORE_CONSOLE 1053 help 1054 If you have enabled the serial port on the Hilscher NetX SoC 1055 you can make it the console by answering Y to this option. 1056 1057config SERIAL_OMAP 1058 tristate "OMAP serial port support" 1059 depends on ARCH_OMAP2PLUS 1060 select SERIAL_CORE 1061 help 1062 If you have a machine based on an Texas Instruments OMAP CPU you 1063 can enable its onboard serial ports by enabling this option. 1064 1065 By enabling this option you take advantage of dma feature available 1066 with the omap-serial driver. DMA support can be enabled from platform 1067 data. 1068 1069config SERIAL_OMAP_CONSOLE 1070 bool "Console on OMAP serial port" 1071 depends on SERIAL_OMAP=y 1072 select SERIAL_CORE_CONSOLE 1073 help 1074 Select this option if you would like to use omap serial port as 1075 console. 1076 1077 Even if you say Y here, the currently visible virtual console 1078 (/dev/tty0) will still be used as the system console by default, but 1079 you can alter that using a kernel command line option such as 1080 "console=ttyOx". (Try "man bootparam" or see the documentation of 1081 your boot loader about how to pass options to the kernel at 1082 boot time.) 1083 1084config SERIAL_SIFIVE 1085 tristate "SiFive UART support" 1086 depends on OF 1087 select SERIAL_CORE 1088 help 1089 Select this option if you are building a kernel for a device that 1090 contains a SiFive UART IP block. This type of UART is present on 1091 SiFive FU540 SoCs, among others. 1092 1093config SERIAL_SIFIVE_CONSOLE 1094 bool "Console on SiFive UART" 1095 depends on SERIAL_SIFIVE=y 1096 select SERIAL_CORE_CONSOLE 1097 help 1098 Select this option if you would like to use a SiFive UART as the 1099 system console. 1100 1101 Even if you say Y here, the currently visible virtual console 1102 (/dev/tty0) will still be used as the system console by default, but 1103 you can alter that using a kernel command line option such as 1104 "console=ttySIFx". (Try "man bootparam" or see the documentation of 1105 your boot loader about how to pass options to the kernel at 1106 boot time.) 1107 1108config SERIAL_LANTIQ 1109 bool "Lantiq serial driver" 1110 depends on LANTIQ 1111 select SERIAL_CORE 1112 select SERIAL_CORE_CONSOLE 1113 select SERIAL_EARLYCON 1114 help 1115 Support for console and UART on Lantiq SoCs. 1116 1117config SERIAL_QE 1118 tristate "Freescale QUICC Engine serial port support" 1119 depends on QUICC_ENGINE 1120 select SERIAL_CORE 1121 select FW_LOADER 1122 help 1123 This driver supports the QE serial ports on Freescale embedded 1124 PowerPC that contain a QUICC Engine. 1125 1126config SERIAL_SCCNXP 1127 tristate "SCCNXP serial port support" 1128 select SERIAL_CORE 1129 help 1130 This selects support for an advanced UART from NXP (Philips). 1131 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92, 1132 SC28L202, SCC68681 and SCC68692. 1133 1134config SERIAL_SCCNXP_CONSOLE 1135 bool "Console on SCCNXP serial port" 1136 depends on SERIAL_SCCNXP=y 1137 select SERIAL_CORE_CONSOLE 1138 help 1139 Support for console on SCCNXP serial ports. 1140 1141config SERIAL_SC16IS7XX_CORE 1142 tristate 1143 1144config SERIAL_SC16IS7XX 1145 tristate "SC16IS7xx serial support" 1146 select SERIAL_CORE 1147 depends on (SPI_MASTER && !I2C) || I2C 1148 help 1149 This selects support for SC16IS7xx serial ports. 1150 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752, 1151 SC16IS760 and SC16IS762. Select supported buses using options below. 1152 1153config SERIAL_SC16IS7XX_I2C 1154 bool "SC16IS7xx for I2C interface" 1155 depends on SERIAL_SC16IS7XX 1156 depends on I2C 1157 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1158 select REGMAP_I2C if I2C 1159 default y 1160 help 1161 Enable SC16IS7xx driver on I2C bus, 1162 If required say y, and say n to i2c if not required, 1163 Enabled by default to support oldconfig. 1164 You must select at least one bus for the driver to be built. 1165 1166config SERIAL_SC16IS7XX_SPI 1167 bool "SC16IS7xx for spi interface" 1168 depends on SERIAL_SC16IS7XX 1169 depends on SPI_MASTER 1170 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1171 select REGMAP_SPI if SPI_MASTER 1172 help 1173 Enable SC16IS7xx driver on SPI bus, 1174 If required say y, and say n to spi if not required, 1175 This is additional support to exsisting driver. 1176 You must select at least one bus for the driver to be built. 1177 1178config SERIAL_TIMBERDALE 1179 tristate "Support for timberdale UART" 1180 select SERIAL_CORE 1181 depends on X86_32 || COMPILE_TEST 1182 ---help--- 1183 Add support for UART controller on timberdale. 1184 1185config SERIAL_BCM63XX 1186 tristate "Broadcom BCM63xx/BCM33xx UART support" 1187 select SERIAL_CORE 1188 depends on MIPS || ARM || COMPILE_TEST 1189 help 1190 This enables the driver for the onchip UART core found on 1191 the following chipsets: 1192 1193 BCM33xx (cable modem) 1194 BCM63xx/BCM63xxx (DSL) 1195 BCM68xx (PON) 1196 BCM7xxx (STB) - DOCSIS console 1197 1198config SERIAL_BCM63XX_CONSOLE 1199 bool "Console on BCM63xx serial port" 1200 depends on SERIAL_BCM63XX=y 1201 select SERIAL_CORE_CONSOLE 1202 select SERIAL_EARLYCON 1203 help 1204 If you have enabled the serial port on the BCM63xx CPU 1205 you can make it the console by answering Y to this option. 1206 1207config SERIAL_GRLIB_GAISLER_APBUART 1208 tristate "GRLIB APBUART serial support" 1209 depends on OF && SPARC 1210 select SERIAL_CORE 1211 ---help--- 1212 Add support for the GRLIB APBUART serial port. 1213 1214config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE 1215 bool "Console on GRLIB APBUART serial port" 1216 depends on SERIAL_GRLIB_GAISLER_APBUART=y 1217 select SERIAL_CORE_CONSOLE 1218 help 1219 Support for running a console on the GRLIB APBUART 1220 1221config SERIAL_ALTERA_JTAGUART 1222 tristate "Altera JTAG UART support" 1223 select SERIAL_CORE 1224 help 1225 This driver supports the Altera JTAG UART port. 1226 1227config SERIAL_ALTERA_JTAGUART_CONSOLE 1228 bool "Altera JTAG UART console support" 1229 depends on SERIAL_ALTERA_JTAGUART=y 1230 select SERIAL_CORE_CONSOLE 1231 select SERIAL_EARLYCON 1232 help 1233 Enable a Altera JTAG UART port to be the system console. 1234 1235config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS 1236 bool "Bypass output when no connection" 1237 depends on SERIAL_ALTERA_JTAGUART_CONSOLE 1238 select SERIAL_CORE_CONSOLE 1239 help 1240 Bypass console output and keep going even if there is no 1241 JTAG terminal connection with the host. 1242 1243config SERIAL_ALTERA_UART 1244 tristate "Altera UART support" 1245 select SERIAL_CORE 1246 help 1247 This driver supports the Altera softcore UART port. 1248 1249config SERIAL_ALTERA_UART_MAXPORTS 1250 int "Maximum number of Altera UART ports" 1251 depends on SERIAL_ALTERA_UART 1252 default 4 1253 help 1254 This setting lets you define the maximum number of the Altera 1255 UART ports. The usual default varies from board to board, and 1256 this setting is a way of catering for that. 1257 1258config SERIAL_ALTERA_UART_BAUDRATE 1259 int "Default baudrate for Altera UART ports" 1260 depends on SERIAL_ALTERA_UART 1261 default 115200 1262 help 1263 This setting lets you define what the default baudrate is for the 1264 Altera UART ports. The usual default varies from board to board, 1265 and this setting is a way of catering for that. 1266 1267config SERIAL_ALTERA_UART_CONSOLE 1268 bool "Altera UART console support" 1269 depends on SERIAL_ALTERA_UART=y 1270 select SERIAL_CORE_CONSOLE 1271 select SERIAL_EARLYCON 1272 help 1273 Enable a Altera UART port to be the system console. 1274 1275config SERIAL_IFX6X60 1276 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)" 1277 depends on GPIOLIB || COMPILE_TEST 1278 depends on SPI && HAS_DMA 1279 help 1280 Support for the IFX6x60 modem devices on Intel MID platforms. 1281 1282config SERIAL_PCH_UART 1283 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART" 1284 depends on PCI && (X86_32 || MIPS || COMPILE_TEST) 1285 select SERIAL_CORE 1286 help 1287 This driver is for PCH(Platform controller Hub) UART of Intel EG20T 1288 which is an IOH(Input/Output Hub) for x86 embedded processor. 1289 Enabling PCH_DMA, this PCH UART works as DMA mode. 1290 1291 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1292 Output Hub), ML7213, ML7223 and ML7831. 1293 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 1294 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 1295 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1296 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1297 1298config SERIAL_PCH_UART_CONSOLE 1299 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH" 1300 depends on SERIAL_PCH_UART=y 1301 select SERIAL_CORE_CONSOLE 1302 help 1303 Say Y here if you wish to use the PCH UART as the system console 1304 (the system console is the device which receives all kernel messages and 1305 warnings and which allows logins in single user mode). 1306 1307config SERIAL_MXS_AUART 1308 tristate "MXS AUART support" 1309 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST 1310 select SERIAL_CORE 1311 select SERIAL_MCTRL_GPIO if GPIOLIB 1312 help 1313 This driver supports the MXS and Alphascale ASM9260 Application 1314 UART (AUART) port. 1315 1316config SERIAL_MXS_AUART_CONSOLE 1317 bool "MXS AUART console support" 1318 depends on SERIAL_MXS_AUART=y 1319 select SERIAL_CORE_CONSOLE 1320 help 1321 Enable a MXS AUART port to be the system console. 1322 1323config SERIAL_XILINX_PS_UART 1324 tristate "Cadence (Xilinx Zynq) UART support" 1325 depends on OF 1326 select SERIAL_CORE 1327 help 1328 This driver supports the Cadence UART. It is found e.g. in Xilinx 1329 Zynq. 1330 1331config SERIAL_XILINX_PS_UART_CONSOLE 1332 bool "Cadence UART console support" 1333 depends on SERIAL_XILINX_PS_UART=y 1334 select SERIAL_CORE_CONSOLE 1335 select SERIAL_EARLYCON 1336 help 1337 Enable a Cadence UART port to be the system console. 1338 1339config SERIAL_AR933X 1340 tristate "AR933X serial port support" 1341 depends on HAVE_CLK && ATH79 1342 select SERIAL_CORE 1343 help 1344 If you have an Atheros AR933X SOC based board and want to use the 1345 built-in UART of the SoC, say Y to this option. 1346 1347 To compile this driver as a module, choose M here: the 1348 module will be called ar933x_uart. 1349 1350config SERIAL_AR933X_CONSOLE 1351 bool "Console on AR933X serial port" 1352 depends on SERIAL_AR933X=y 1353 select SERIAL_CORE_CONSOLE 1354 help 1355 Enable a built-in UART port of the AR933X to be the system console. 1356 1357config SERIAL_AR933X_NR_UARTS 1358 int "Maximum number of AR933X serial ports" 1359 depends on SERIAL_AR933X 1360 default "2" 1361 help 1362 Set this to the number of serial ports you want the driver 1363 to support. 1364 1365config SERIAL_EFM32_UART 1366 tristate "EFM32 UART/USART port" 1367 depends on ARM && (ARCH_EFM32 || COMPILE_TEST) 1368 select SERIAL_CORE 1369 help 1370 This driver support the USART and UART ports on 1371 Energy Micro's efm32 SoCs. 1372 1373config SERIAL_MPS2_UART_CONSOLE 1374 bool "MPS2 UART console support" 1375 depends on SERIAL_MPS2_UART 1376 select SERIAL_CORE_CONSOLE 1377 select SERIAL_EARLYCON 1378 1379config SERIAL_MPS2_UART 1380 bool "MPS2 UART port" 1381 depends on ARCH_MPS2 || COMPILE_TEST 1382 select SERIAL_CORE 1383 help 1384 This driver support the UART ports on ARM MPS2. 1385 1386config SERIAL_EFM32_UART_CONSOLE 1387 bool "EFM32 UART/USART console support" 1388 depends on SERIAL_EFM32_UART=y 1389 select SERIAL_CORE_CONSOLE 1390 1391config SERIAL_ARC 1392 tristate "ARC UART driver support" 1393 select SERIAL_CORE 1394 help 1395 Driver for on-chip UART for ARC(Synopsys) for the legacy 1396 FPGA Boards (ML50x/ARCAngel4) 1397 1398config SERIAL_ARC_CONSOLE 1399 bool "Console on ARC UART" 1400 depends on SERIAL_ARC=y 1401 select SERIAL_CORE_CONSOLE 1402 select SERIAL_EARLYCON 1403 help 1404 Enable system Console on ARC UART 1405 1406config SERIAL_ARC_NR_PORTS 1407 int "Number of ARC UART ports" 1408 depends on SERIAL_ARC 1409 range 1 3 1410 default "1" 1411 help 1412 Set this to the number of serial ports you want the driver 1413 to support. 1414 1415config SERIAL_RP2 1416 tristate "Comtrol RocketPort EXPRESS/INFINITY support" 1417 depends on PCI 1418 select SERIAL_CORE 1419 help 1420 This driver supports the Comtrol RocketPort EXPRESS and 1421 RocketPort INFINITY families of PCI/PCIe multiport serial adapters. 1422 These adapters use a "RocketPort 2" ASIC that is not compatible 1423 with the original RocketPort driver (CONFIG_ROCKETPORT). 1424 1425 To compile this driver as a module, choose M here: the 1426 module will be called rp2. 1427 1428 If you want to compile this driver into the kernel, say Y here. If 1429 you don't have a suitable RocketPort card installed, say N. 1430 1431config SERIAL_RP2_NR_UARTS 1432 int "Maximum number of RocketPort EXPRESS/INFINITY ports" 1433 depends on SERIAL_RP2 1434 default "32" 1435 help 1436 If multiple cards are present, the default limit of 32 ports may 1437 need to be increased. 1438 1439config SERIAL_FSL_LPUART 1440 tristate "Freescale lpuart serial port support" 1441 depends on HAS_DMA 1442 select SERIAL_CORE 1443 help 1444 Support for the on-chip lpuart on some Freescale SOCs. 1445 1446config SERIAL_FSL_LPUART_CONSOLE 1447 bool "Console on Freescale lpuart serial port" 1448 depends on SERIAL_FSL_LPUART=y 1449 select SERIAL_CORE_CONSOLE 1450 select SERIAL_EARLYCON 1451 help 1452 If you have enabled the lpuart serial port on the Freescale SoCs, 1453 you can make it the console by answering Y to this option. 1454 1455config SERIAL_CONEXANT_DIGICOLOR 1456 tristate "Conexant Digicolor CX92xxx USART serial port support" 1457 depends on OF 1458 select SERIAL_CORE 1459 help 1460 Support for the on-chip USART on Conexant Digicolor SoCs. 1461 1462config SERIAL_CONEXANT_DIGICOLOR_CONSOLE 1463 bool "Console on Conexant Digicolor serial port" 1464 depends on SERIAL_CONEXANT_DIGICOLOR=y 1465 select SERIAL_CORE_CONSOLE 1466 help 1467 If you have enabled the USART serial port on Conexant Digicolor 1468 SoCs, you can make it the console by answering Y to this option. 1469 1470config SERIAL_ST_ASC 1471 tristate "ST ASC serial port support" 1472 select SERIAL_CORE 1473 depends on ARM || COMPILE_TEST 1474 help 1475 This driver is for the on-chip Asychronous Serial Controller on 1476 STMicroelectronics STi SoCs. 1477 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality. 1478 It support all industry standard baud rates. 1479 1480 If unsure, say N. 1481 1482config SERIAL_ST_ASC_CONSOLE 1483 bool "Support for console on ST ASC" 1484 depends on SERIAL_ST_ASC=y 1485 select SERIAL_CORE_CONSOLE 1486 1487config SERIAL_MEN_Z135 1488 tristate "MEN 16z135 Support" 1489 select SERIAL_CORE 1490 depends on MCB 1491 help 1492 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core 1493 on a MCB carrier. 1494 1495 This driver can also be build as a module. If so, the module will be called 1496 men_z135_uart.ko 1497 1498config SERIAL_SPRD 1499 tristate "Support for Spreadtrum serial" 1500 depends on ARCH_SPRD 1501 select SERIAL_CORE 1502 help 1503 This enables the driver for the Spreadtrum's serial. 1504 1505config SERIAL_SPRD_CONSOLE 1506 bool "Spreadtrum UART console support" 1507 depends on SERIAL_SPRD=y 1508 select SERIAL_CORE_CONSOLE 1509 select SERIAL_EARLYCON 1510 help 1511 Support for early debug console using Spreadtrum's serial. This enables 1512 the console before standard serial driver is probed. This is enabled 1513 with "earlycon" on the kernel command line. The console is 1514 enabled when early_param is processed. 1515 1516config SERIAL_STM32 1517 tristate "STMicroelectronics STM32 serial port support" 1518 select SERIAL_CORE 1519 depends on ARCH_STM32 || COMPILE_TEST 1520 help 1521 This driver is for the on-chip Serial Controller on 1522 STMicroelectronics STM32 MCUs. 1523 USART supports Rx & Tx functionality. 1524 It support all industry standard baud rates. 1525 1526 If unsure, say N. 1527 1528config SERIAL_STM32_CONSOLE 1529 bool "Support for console on STM32" 1530 depends on SERIAL_STM32=y 1531 select SERIAL_CORE_CONSOLE 1532 1533config SERIAL_MVEBU_UART 1534 bool "Marvell EBU serial port support" 1535 depends on ARCH_MVEBU || COMPILE_TEST 1536 select SERIAL_CORE 1537 help 1538 This driver is for Marvell EBU SoC's UART. If you have a machine 1539 based on the Armada-3700 SoC and wish to use the on-board serial 1540 port, 1541 say 'Y' here. 1542 Otherwise, say 'N'. 1543 1544config SERIAL_MVEBU_CONSOLE 1545 bool "Console on Marvell EBU serial port" 1546 depends on SERIAL_MVEBU_UART 1547 select SERIAL_CORE_CONSOLE 1548 select SERIAL_EARLYCON 1549 default y 1550 help 1551 Say 'Y' here if you wish to use Armada-3700 UART as the system console. 1552 (the system console is the device which receives all kernel messages 1553 and warnings and which allows logins in single user mode) 1554 Otherwise, say 'N'. 1555 1556config SERIAL_OWL 1557 tristate "Actions Semi Owl serial port support" 1558 depends on ARCH_ACTIONS || COMPILE_TEST 1559 select SERIAL_CORE 1560 help 1561 This driver is for Actions Semiconductor S500/S900 SoC's UART. 1562 Say 'Y' here if you wish to use the on-board serial port. 1563 Otherwise, say 'N'. 1564 1565config SERIAL_OWL_CONSOLE 1566 bool "Console on Actions Semi Owl serial port" 1567 depends on SERIAL_OWL=y 1568 select SERIAL_CORE_CONSOLE 1569 select SERIAL_EARLYCON 1570 default y 1571 help 1572 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART 1573 as the system console. 1574 1575config SERIAL_RDA 1576 bool "RDA Micro serial port support" 1577 depends on ARCH_RDA || COMPILE_TEST 1578 select SERIAL_CORE 1579 help 1580 This driver is for RDA8810PL SoC's UART. 1581 Say 'Y' here if you wish to use the on-board serial port. 1582 Otherwise, say 'N'. 1583 1584config SERIAL_RDA_CONSOLE 1585 bool "Console on RDA Micro serial port" 1586 depends on SERIAL_RDA=y 1587 select SERIAL_CORE_CONSOLE 1588 select SERIAL_EARLYCON 1589 default y 1590 help 1591 Say 'Y' here if you wish to use the RDA8810PL UART as the system 1592 console. Only earlycon is implemented currently. 1593 1594config SERIAL_MILBEAUT_USIO 1595 tristate "Milbeaut USIO/UART serial port support" 1596 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF) 1597 default ARCH_MILBEAUT 1598 select SERIAL_CORE 1599 help 1600 This selects the USIO/UART IP found in Socionext Milbeaut SoCs. 1601 1602config SERIAL_MILBEAUT_USIO_PORTS 1603 int "Maximum number of CSIO/UART ports (1-8)" 1604 range 1 8 1605 depends on SERIAL_MILBEAUT_USIO 1606 default "4" 1607 1608config SERIAL_MILBEAUT_USIO_CONSOLE 1609 bool "Support for console on MILBEAUT USIO/UART serial port" 1610 depends on SERIAL_MILBEAUT_USIO=y 1611 default y 1612 select SERIAL_CORE_CONSOLE 1613 select SERIAL_EARLYCON 1614 help 1615 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut 1616 SoCs as the system console (the system console is the device which 1617 receives all kernel messages and warnings and which allows logins in 1618 single user mode). 1619 1620endmenu 1621 1622config SERIAL_MCTRL_GPIO 1623 tristate 1624 1625endif # TTY 1626