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 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 help 143 Say Y here if you wish to use an on-chip UART on a Atmel 144 AT91 processor as the system console (the system 145 console is the device which receives all kernel messages and 146 warnings and which allows logins in single user mode). 147 148config SERIAL_ATMEL_PDC 149 bool "Support DMA transfers on AT91 serial port" 150 depends on SERIAL_ATMEL 151 default y 152 help 153 Say Y here if you wish to use the PDC to do DMA transfers to 154 and from the Atmel AT91 serial port. In order to 155 actually use DMA transfers, make sure that the use_dma_tx 156 and use_dma_rx members in the atmel_uart_data struct is set 157 appropriately for each port. 158 159 Note that break and error handling currently doesn't work 160 properly when DMA is enabled. Make sure that ports where 161 this matters don't use DMA. 162 163config SERIAL_ATMEL_TTYAT 164 bool "Install as device ttyATn instead of ttySn" 165 depends on SERIAL_ATMEL=y 166 help 167 Say Y here if you wish to have the internal AT91 UARTs 168 appear as /dev/ttyATn (major 204, minor starting at 154) 169 instead of the normal /dev/ttySn (major 4, minor starting at 170 64). This is necessary if you also want other UARTs, such as 171 external 8250/16C550 compatible UARTs. 172 The ttySn nodes are legally reserved for the 8250 serial driver 173 but are often misused by other serial drivers. 174 175 To use this, you should create suitable ttyATn device nodes in 176 /dev/, and pass "console=ttyATn" to the kernel. 177 178 Say Y if you have an external 8250/16C550 UART. If unsure, say N. 179 180config SERIAL_KGDB_NMI 181 bool "Serial console over KGDB NMI debugger port" 182 depends on KGDB_SERIAL_CONSOLE 183 help 184 This special driver allows you to temporary use NMI debugger port 185 as a normal console (assuming that the port is attached to KGDB). 186 187 Unlike KDB's disable_nmi command, with this driver you are always 188 able to go back to the debugger using KGDB escape sequence ($3#33). 189 This is because this console driver processes the input in NMI 190 context, and thus is able to intercept the magic sequence. 191 192 Note that since the console interprets input and uses polling 193 communication methods, for things like PPP you still must fully 194 detach debugger port from the KGDB NMI (i.e. disable_nmi), and 195 use raw console. 196 197 If unsure, say N. 198 199config SERIAL_MESON 200 tristate "Meson serial port support" 201 depends on ARCH_MESON 202 select SERIAL_CORE 203 help 204 This enables the driver for the on-chip UARTs of the Amlogic 205 MesonX processors. 206 207config SERIAL_MESON_CONSOLE 208 bool "Support for console on meson" 209 depends on SERIAL_MESON 210 select SERIAL_CORE_CONSOLE 211 select SERIAL_EARLYCON 212 help 213 Say Y here if you wish to use a Amlogic MesonX UART as the 214 system console (the system console is the device which 215 receives all kernel messages and warnings and which allows 216 logins in single user mode) as /dev/ttyAMLx. 217 218config SERIAL_CLPS711X 219 tristate "CLPS711X serial port support" 220 depends on ARCH_CLPS711X || COMPILE_TEST 221 select SERIAL_CORE 222 select SERIAL_MCTRL_GPIO if GPIOLIB 223 help 224 This enables the driver for the on-chip UARTs of the Cirrus 225 Logic EP711x/EP721x/EP731x processors. 226 227config SERIAL_CLPS711X_CONSOLE 228 bool "Support for console on CLPS711X serial port" 229 depends on SERIAL_CLPS711X=y 230 select SERIAL_CORE_CONSOLE 231 help 232 Even if you say Y here, the currently visible virtual console 233 (/dev/tty0) will still be used as the system console by default, but 234 you can alter that using a kernel command line option such as 235 "console=ttyCL1". 236 237config SERIAL_SAMSUNG 238 tristate "Samsung SoC serial support" 239 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 240 select SERIAL_CORE 241 help 242 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs, 243 providing /dev/ttySAC0, 1 and 2 (note, some machines may not 244 provide all of these ports, depending on how the serial port 245 pins are configured. 246 247config SERIAL_SAMSUNG_UARTS_4 248 bool 249 depends on SERIAL_SAMSUNG 250 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442) 251 help 252 Internal node for the common case of 4 Samsung compatible UARTs 253 254config SERIAL_SAMSUNG_UARTS 255 int 256 depends on SERIAL_SAMSUNG 257 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416 258 default 3 259 help 260 Select the number of available UART ports for the Samsung S3C 261 serial driver 262 263config SERIAL_SAMSUNG_CONSOLE 264 bool "Support for console on Samsung SoC serial port" 265 depends on SERIAL_SAMSUNG=y 266 select SERIAL_CORE_CONSOLE 267 select SERIAL_EARLYCON 268 help 269 Allow selection of the S3C24XX on-board serial ports for use as 270 an virtual console. 271 272 Even if you say Y here, the currently visible virtual console 273 (/dev/tty0) will still be used as the system console by default, but 274 you can alter that using a kernel command line option such as 275 "console=ttySACx". (Try "man bootparam" or see the documentation of 276 your boot loader about how to pass options to the kernel at 277 boot time.) 278 279config SERIAL_SIRFSOC 280 tristate "SiRF SoC Platform Serial port support" 281 depends on ARCH_SIRF 282 select SERIAL_CORE 283 help 284 Support for the on-chip UART on the CSR SiRFprimaII series, 285 providing /dev/ttySiRF0, 1 and 2 (note, some machines may not 286 provide all of these ports, depending on how the serial port 287 pins are configured). 288 289config SERIAL_SIRFSOC_CONSOLE 290 bool "Support for console on SiRF SoC serial port" 291 depends on SERIAL_SIRFSOC=y 292 select SERIAL_CORE_CONSOLE 293 help 294 Even if you say Y here, the currently visible virtual console 295 (/dev/tty0) will still be used as the system console by default, but 296 you can alter that using a kernel command line option such as 297 "console=ttySiRFx". (Try "man bootparam" or see the documentation of 298 your boot loader about how to pass options to the kernel at 299 boot time.) 300 301config SERIAL_TEGRA 302 tristate "NVIDIA Tegra20/30 SoC serial controller" 303 depends on ARCH_TEGRA && TEGRA20_APB_DMA 304 select SERIAL_CORE 305 help 306 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs 307 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not 308 provide all of these ports, depending on how the serial port 309 are enabled). This driver uses the APB DMA to achieve higher baudrate 310 and better performance. 311 312config SERIAL_TEGRA_TCU 313 tristate "NVIDIA Tegra Combined UART" 314 depends on ARCH_TEGRA && TEGRA_HSP_MBOX 315 select SERIAL_CORE 316 help 317 Support for the mailbox-based TCU (Tegra Combined UART) serial port. 318 TCU is a virtual serial port that allows multiplexing multiple data 319 streams into a single hardware serial port. 320 321config SERIAL_TEGRA_TCU_CONSOLE 322 bool "Support for console on a Tegra TCU serial port" 323 depends on SERIAL_TEGRA_TCU=y 324 select SERIAL_CORE_CONSOLE 325 default y 326 help 327 If you say Y here, it will be possible to use a the Tegra TCU as the 328 system console (the system console is the device which receives all 329 kernel messages and warnings and which allows logins in single user 330 mode). 331 332 If unsure, say Y. 333 334config SERIAL_MAX3100 335 tristate "MAX3100 support" 336 depends on SPI 337 select SERIAL_CORE 338 help 339 MAX3100 chip support 340 341config SERIAL_MAX310X 342 tristate "MAX310X support" 343 depends on SPI_MASTER 344 select SERIAL_CORE 345 select REGMAP_SPI if SPI_MASTER 346 help 347 This selects support for an advanced UART from Maxim (Dallas). 348 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830. 349 Each IC contains 128 words each of receive and transmit FIFO 350 that can be controlled through I2C or high-speed SPI. 351 352 Say Y here if you want to support this ICs. 353 354config SERIAL_DZ 355 bool "DECstation DZ serial driver" 356 depends on MACH_DECSTATION && 32BIT 357 select SERIAL_CORE 358 default y 359 help 360 DZ11-family serial controllers for DECstations and VAXstations, 361 including the DC7085, M7814, and M7819. 362 363config SERIAL_DZ_CONSOLE 364 bool "Support console on DECstation DZ serial driver" 365 depends on SERIAL_DZ=y 366 select SERIAL_CORE_CONSOLE 367 default y 368 help 369 If you say Y here, it will be possible to use a serial port as the 370 system console (the system console is the device which receives all 371 kernel messages and warnings and which allows logins in single user 372 mode). 373 374 Note that the firmware uses ttyS3 as the serial console on 375 DECstations that use this driver. 376 377 If unsure, say Y. 378 379config SERIAL_ZS 380 tristate "DECstation Z85C30 serial support" 381 depends on MACH_DECSTATION 382 select SERIAL_CORE 383 default y 384 help 385 Support for the Zilog 85C350 serial communications controller used 386 for serial ports in newer DECstation systems. These include the 387 DECsystem 5900 and all models of the DECstation and DECsystem 5000 388 systems except from model 200. 389 390 If unsure, say Y. To compile this driver as a module, choose M here: 391 the module will be called zs. 392 393config SERIAL_ZS_CONSOLE 394 bool "Support for console on a DECstation Z85C30 serial port" 395 depends on SERIAL_ZS=y 396 select SERIAL_CORE_CONSOLE 397 default y 398 help 399 If you say Y here, it will be possible to use a serial port as the 400 system console (the system console is the device which receives all 401 kernel messages and warnings and which allows logins in single user 402 mode). 403 404 Note that the firmware uses ttyS1 as the serial console on the 405 Maxine and ttyS3 on the others using this driver. 406 407 If unsure, say Y. 408 409config SERIAL_21285 410 tristate "DC21285 serial port support" 411 depends on FOOTBRIDGE 412 select SERIAL_CORE 413 help 414 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/ 415 PCI bridge you can enable its onboard serial port by enabling this 416 option. 417 418config SERIAL_21285_CONSOLE 419 bool "Console on DC21285 serial port" 420 depends on SERIAL_21285=y 421 select SERIAL_CORE_CONSOLE 422 help 423 If you have enabled the serial port on the 21285 footbridge you can 424 make it the console by answering Y to this option. 425 426 Even if you say Y here, the currently visible virtual console 427 (/dev/tty0) will still be used as the system console by default, but 428 you can alter that using a kernel command line option such as 429 "console=ttyFB". (Try "man bootparam" or see the documentation of 430 your boot loader (lilo or loadlin) about how to pass options to the 431 kernel at boot time.) 432 433config SERIAL_PXA 434 bool "PXA serial port support (DEPRECATED)" 435 depends on ARCH_PXA || ARCH_MMP 436 select SERIAL_CORE 437 select SERIAL_8250_PXA if SERIAL_8250=y 438 select SERIAL_PXA_NON8250 if !SERIAL_8250=y 439 help 440 If you have a machine based on an Intel XScale PXA2xx CPU you 441 can enable its onboard serial ports by enabling this option. 442 443 Unless you have a specific need, you should use SERIAL_8250_PXA 444 instead of this. 445 446config SERIAL_PXA_NON8250 447 bool 448 depends on !SERIAL_8250 449 450config SERIAL_PXA_CONSOLE 451 bool "Console on PXA serial port (DEPRECATED)" 452 depends on SERIAL_PXA 453 select SERIAL_CORE_CONSOLE 454 select SERIAL_8250_CONSOLE if SERIAL_8250=y 455 help 456 If you have enabled the serial port on the Intel XScale PXA 457 CPU you can make it the console by answering Y to this option. 458 459 Even if you say Y here, the currently visible virtual console 460 (/dev/tty0) will still be used as the system console by default, but 461 you can alter that using a kernel command line option such as 462 "console=ttySA0". (Try "man bootparam" or see the documentation of 463 your boot loader (lilo or loadlin) about how to pass options to the 464 kernel at boot time.) 465 466 Unless you have a specific need, you should use SERIAL_8250_PXA 467 and SERIAL_8250_CONSOLE instead of this. 468 469config SERIAL_SA1100 470 bool "SA1100 serial port support" 471 depends on ARCH_SA1100 472 select SERIAL_CORE 473 select SERIAL_MCTRL_GPIO if GPIOLIB 474 help 475 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you 476 can enable its onboard serial port by enabling this option. 477 Please read <file:Documentation/arm/sa1100/serial_uart.rst> for further 478 info. 479 480config SERIAL_SA1100_CONSOLE 481 bool "Console on SA1100 serial port" 482 depends on SERIAL_SA1100 483 select SERIAL_CORE_CONSOLE 484 help 485 If you have enabled the serial port on the SA1100/SA1110 StrongARM 486 CPU you can make it the console by answering Y to this option. 487 488 Even if you say Y here, the currently visible virtual console 489 (/dev/tty0) will still be used as the system console by default, but 490 you can alter that using a kernel command line option such as 491 "console=ttySA0". (Try "man bootparam" or see the documentation of 492 your boot loader (lilo or loadlin) about how to pass options to the 493 kernel at boot time.) 494 495config SERIAL_IMX 496 tristate "IMX serial port support" 497 depends on ARCH_MXC || COMPILE_TEST 498 select SERIAL_CORE 499 select RATIONAL 500 select SERIAL_MCTRL_GPIO if GPIOLIB 501 help 502 If you have a machine based on a Motorola IMX CPU you 503 can enable its onboard serial port by enabling this option. 504 505config SERIAL_IMX_CONSOLE 506 tristate "Console on IMX serial port" 507 depends on SERIAL_IMX 508 select SERIAL_CORE_CONSOLE 509 help 510 If you have enabled the serial port on the Freescale IMX 511 CPU you can make it the console by answering Y/M to this option. 512 513 Even if you say Y/M here, the currently visible virtual console 514 (/dev/tty0) will still be used as the system console by default, but 515 you can alter that using a kernel command line option such as 516 "console=ttymxc0". (Try "man bootparam" or see the documentation of 517 your bootloader about how to pass options to the kernel at boot time.) 518 519config SERIAL_IMX_EARLYCON 520 bool "Earlycon on IMX serial port" 521 depends on ARCH_MXC || COMPILE_TEST 522 depends on OF 523 select SERIAL_EARLYCON 524 select SERIAL_CORE_CONSOLE 525 default y if SERIAL_IMX_CONSOLE 526 help 527 If you have enabled the earlycon on the Freescale IMX 528 CPU you can make it the earlycon by answering Y to this option. 529 530config SERIAL_UARTLITE 531 tristate "Xilinx uartlite serial port support" 532 depends on HAS_IOMEM 533 select SERIAL_CORE 534 help 535 Say Y here if you want to use the Xilinx uartlite serial controller. 536 537 To compile this driver as a module, choose M here: the 538 module will be called uartlite. 539 540config SERIAL_UARTLITE_CONSOLE 541 bool "Support for console on Xilinx uartlite serial port" 542 depends on SERIAL_UARTLITE=y 543 select SERIAL_CORE_CONSOLE 544 select SERIAL_EARLYCON 545 help 546 Say Y here if you wish to use a Xilinx uartlite as the system 547 console (the system console is the device which receives all kernel 548 messages and warnings and which allows logins in single user mode). 549 550config SERIAL_UARTLITE_NR_UARTS 551 int "Maximum number of uartlite serial ports" 552 depends on SERIAL_UARTLITE 553 range 1 256 554 default 1 555 help 556 Set this to the number of uartlites in your system, or the number 557 you think you might implement. 558 559config SERIAL_SUNCORE 560 bool 561 depends on SPARC 562 select SERIAL_CORE 563 select SERIAL_CORE_CONSOLE 564 default y 565 566config SERIAL_SUNZILOG 567 tristate "Sun Zilog8530 serial support" 568 depends on SPARC 569 help 570 This driver supports the Zilog8530 serial ports found on many Sparc 571 systems. Say Y or M if you want to be able to these serial ports. 572 573config SERIAL_SUNZILOG_CONSOLE 574 bool "Console on Sun Zilog8530 serial port" 575 depends on SERIAL_SUNZILOG=y 576 help 577 If you would like to be able to use the Zilog8530 serial port 578 on your Sparc system as the console, you can do so by answering 579 Y to this option. 580 581config SERIAL_SUNSU 582 tristate "Sun SU serial support" 583 depends on SPARC && PCI 584 help 585 This driver supports the 8250 serial ports that run the keyboard and 586 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able 587 to these serial ports. 588 589config SERIAL_SUNSU_CONSOLE 590 bool "Console on Sun SU serial port" 591 depends on SERIAL_SUNSU=y 592 help 593 If you would like to be able to use the SU serial port 594 on your Sparc system as the console, you can do so by answering 595 Y to this option. 596 597config SERIAL_MUX 598 tristate "Serial MUX support" 599 depends on GSC 600 select SERIAL_CORE 601 default y 602 help 603 Saying Y here will enable the hardware MUX serial driver for 604 the Nova, K class systems and D class with a 'remote control card'. 605 The hardware MUX is not 8250/16550 compatible therefore the 606 /dev/ttyB0 device is shared between the Serial MUX and the PDC 607 software console. The following steps need to be completed to use 608 the Serial MUX: 609 610 1. create the device entry (mknod /dev/ttyB0 c 11 0) 611 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 612 3. Add device ttyB0 to /etc/securetty (if you want to log on as 613 root on this console.) 614 4. Change the kernel command console parameter to: console=ttyB0 615 616config SERIAL_MUX_CONSOLE 617 bool "Support for console on serial MUX" 618 depends on SERIAL_MUX=y 619 select SERIAL_CORE_CONSOLE 620 default y 621 622config PDC_CONSOLE 623 bool "PDC software console support" 624 depends on PARISC && !SERIAL_MUX && VT 625 help 626 Saying Y here will enable the software based PDC console to be 627 used as the system console. This is useful for machines in 628 which the hardware based console has not been written yet. The 629 following steps must be completed to use the PDC console: 630 631 1. create the device entry (mknod /dev/ttyB0 c 11 0) 632 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 633 3. Add device ttyB0 to /etc/securetty (if you want to log on as 634 root on this console.) 635 4. Change the kernel command console parameter to: console=ttyB0 636 637config SERIAL_SUNSAB 638 tristate "Sun Siemens SAB82532 serial support" 639 depends on SPARC && PCI 640 help 641 This driver supports the Siemens SAB82532 DUSCC serial ports on newer 642 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these 643 serial ports. 644 645config SERIAL_SUNSAB_CONSOLE 646 bool "Console on Sun Siemens SAB82532 serial port" 647 depends on SERIAL_SUNSAB=y 648 help 649 If you would like to be able to use the SAB82532 serial port 650 on your Sparc system as the console, you can do so by answering 651 Y to this option. 652 653config SERIAL_SUNHV 654 bool "Sun4v Hypervisor Console support" 655 depends on SPARC64 656 help 657 This driver supports the console device found on SUN4V Sparc 658 systems. Say Y if you want to be able to use this device. 659 660config SERIAL_IP22_ZILOG 661 tristate "SGI Zilog8530 serial support" 662 depends on SGI_HAS_ZILOG 663 select SERIAL_CORE 664 help 665 This driver supports the Zilog8530 serial ports found on SGI 666 systems. Say Y or M if you want to be able to these serial ports. 667 668config SERIAL_IP22_ZILOG_CONSOLE 669 bool "Console on SGI Zilog8530 serial port" 670 depends on SERIAL_IP22_ZILOG=y 671 select SERIAL_CORE_CONSOLE 672 673config SERIAL_SH_SCI 674 tristate "SuperH SCI(F) serial port support" 675 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST 676 select SERIAL_CORE 677 select SERIAL_MCTRL_GPIO if GPIOLIB 678 679config SERIAL_SH_SCI_NR_UARTS 680 int "Maximum number of SCI(F) serial ports" if EXPERT 681 range 1 64 if 64BIT 682 range 1 32 if !64BIT 683 depends on SERIAL_SH_SCI 684 default "3" if H8300 685 default "10" if SUPERH 686 default "18" if ARCH_RENESAS 687 default "2" 688 689config SERIAL_SH_SCI_CONSOLE 690 bool "Support for console on SuperH SCI(F)" if EXPERT 691 depends on SERIAL_SH_SCI=y 692 select SERIAL_CORE_CONSOLE 693 default y 694 695config SERIAL_SH_SCI_EARLYCON 696 bool "Support for early console on SuperH SCI(F)" if EXPERT 697 depends on SERIAL_SH_SCI=y 698 select SERIAL_CORE_CONSOLE 699 select SERIAL_EARLYCON 700 default ARCH_RENESAS || H8300 701 702config SERIAL_SH_SCI_DMA 703 bool "DMA support" if EXPERT 704 depends on SERIAL_SH_SCI && DMA_ENGINE 705 default ARCH_RENESAS 706 707config SERIAL_HS_LPC32XX 708 tristate "LPC32XX high speed serial port support" 709 depends on ARCH_LPC32XX || COMPILE_TEST 710 depends on OF 711 select SERIAL_CORE 712 help 713 Support for the LPC32XX high speed serial ports (up to 900kbps). 714 Those are UARTs completely different from the Standard UARTs on the 715 LPC32XX SoC. 716 Choose M or Y here to build this driver. 717 718config SERIAL_HS_LPC32XX_CONSOLE 719 bool "Enable LPC32XX high speed UART serial console" 720 depends on SERIAL_HS_LPC32XX=y 721 select SERIAL_CORE_CONSOLE 722 help 723 If you would like to be able to use one of the high speed serial 724 ports on the LPC32XX as the console, you can do so by answering 725 Y to this option. 726 727config SERIAL_CORE 728 tristate 729 730config SERIAL_CORE_CONSOLE 731 bool 732 733config CONSOLE_POLL 734 bool 735 736config SERIAL_MCF 737 bool "Coldfire serial support" 738 depends on COLDFIRE 739 select SERIAL_CORE 740 help 741 This serial driver supports the Freescale Coldfire serial ports. 742 743config SERIAL_MCF_BAUDRATE 744 int "Default baudrate for Coldfire serial ports" 745 depends on SERIAL_MCF 746 default 19200 747 help 748 This setting lets you define what the default baudrate is for the 749 ColdFire serial ports. The usual default varies from board to board, 750 and this setting is a way of catering for that. 751 752config SERIAL_MCF_CONSOLE 753 bool "Coldfire serial console support" 754 depends on SERIAL_MCF 755 select SERIAL_CORE_CONSOLE 756 help 757 Enable a ColdFire internal serial port to be the system console. 758 759config SERIAL_PMACZILOG 760 tristate "Mac or PowerMac z85c30 ESCC support" 761 depends on (M68K && MAC) || PPC_PMAC 762 select SERIAL_CORE 763 help 764 This driver supports the Zilog z85C30 serial ports found on 765 (Power)Mac machines. 766 Say Y or M if you want to be able to these serial ports. 767 768config SERIAL_PMACZILOG_TTYS 769 bool "Use ttySn device nodes for Zilog z85c30" 770 depends on SERIAL_PMACZILOG 771 help 772 The pmac_zilog driver for the z85C30 chip on many powermacs 773 historically used the device numbers for /dev/ttySn. The 774 8250 serial port driver also uses these numbers, which means 775 the two drivers being unable to coexist; you could not use 776 both z85C30 and 8250 type ports at the same time. 777 778 If this option is not selected, the pmac_zilog driver will 779 use the device numbers allocated for /dev/ttyPZn. This allows 780 the pmac_zilog and 8250 drivers to co-exist, but may cause 781 existing userspace setups to break. Programs that need to 782 access the built-in serial ports on powermacs will need to 783 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn. 784 785 If you enable this option, any z85c30 ports in the system will 786 be registered as ttyS0 onwards as in the past, and you will be 787 unable to use the 8250 module for PCMCIA or other 16C550-style 788 UARTs. 789 790 Say N unless you need the z85c30 ports on your (Power)Mac 791 to appear as /dev/ttySn. 792 793config SERIAL_PMACZILOG_CONSOLE 794 bool "Console on Mac or PowerMac z85c30 serial port" 795 depends on SERIAL_PMACZILOG=y 796 select SERIAL_CORE_CONSOLE 797 help 798 If you would like to be able to use the z85c30 serial port 799 on your (Power)Mac as the console, you can do so by answering 800 Y to this option. 801 802config SERIAL_CPM 803 tristate "CPM SCC/SMC serial port support" 804 depends on CPM2 || CPM1 805 select SERIAL_CORE 806 help 807 This driver supports the SCC and SMC serial ports on Motorola 808 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx) 809 810config SERIAL_CPM_CONSOLE 811 bool "Support for console on CPM SCC/SMC serial port" 812 depends on SERIAL_CPM=y 813 select SERIAL_CORE_CONSOLE 814 help 815 Say Y here if you wish to use a SCC or SMC CPM UART as the system 816 console (the system console is the device which receives all kernel 817 messages and warnings and which allows logins in single user mode). 818 819 Even if you say Y here, the currently visible framebuffer console 820 (/dev/tty0) will still be used as the system console by default, but 821 you can alter that using a kernel command line option such as 822 "console=ttyCPM0". (Try "man bootparam" or see the documentation of 823 your boot loader (lilo or loadlin) about how to pass options to the 824 kernel at boot time.) 825 826config SERIAL_PIC32 827 tristate "Microchip PIC32 serial support" 828 depends on MACH_PIC32 829 select SERIAL_CORE 830 help 831 If you have a PIC32, this driver supports the serial ports. 832 833 Say Y or M to use PIC32 serial ports, otherwise say N. Note that 834 to use a serial port as a console, this must be included in kernel and 835 not as a module. 836 837config SERIAL_PIC32_CONSOLE 838 bool "PIC32 serial console support" 839 depends on SERIAL_PIC32 840 select SERIAL_CORE_CONSOLE 841 help 842 If you have a PIC32, this driver supports the putting a console on one 843 of the serial ports. 844 845 Say Y to use the PIC32 console, otherwise say N. 846 847config SERIAL_MPC52xx 848 tristate "Freescale MPC52xx/MPC512x family PSC serial support" 849 depends on PPC_MPC52xx || PPC_MPC512x 850 select SERIAL_CORE 851 help 852 This driver supports MPC52xx and MPC512x PSC serial ports. If you would 853 like to use them, you must answer Y or M to this option. Note that 854 for use as console, it must be included in kernel and not as a 855 module. 856 857config SERIAL_MPC52xx_CONSOLE 858 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port" 859 depends on SERIAL_MPC52xx=y 860 select SERIAL_CORE_CONSOLE 861 help 862 Select this options if you'd like to use one of the PSC serial port 863 of the Freescale MPC52xx family as a console. 864 865config SERIAL_MPC52xx_CONSOLE_BAUD 866 int "Freescale MPC52xx/MPC512x family PSC serial port baud" 867 depends on SERIAL_MPC52xx_CONSOLE=y 868 default "9600" 869 help 870 Select the MPC52xx console baud rate. 871 This value is only used if the bootloader doesn't pass in the 872 console baudrate 873 874config SERIAL_ICOM 875 tristate "IBM Multiport Serial Adapter" 876 depends on PCI && PPC_PSERIES 877 select SERIAL_CORE 878 select FW_LOADER 879 help 880 This driver is for a family of multiport serial adapters 881 including 2 port RVX, 2 port internal modem, 4 port internal 882 modem and a split 1 port RVX and 1 port internal modem. 883 884 This driver can also be built as a module. If so, the module 885 will be called icom. 886 887config SERIAL_TXX9 888 bool "TMPTX39XX/49XX SIO support" 889 depends on HAS_TXX9_SERIAL 890 select SERIAL_CORE 891 default y 892 893config HAS_TXX9_SERIAL 894 bool 895 896config SERIAL_TXX9_NR_UARTS 897 int "Maximum number of TMPTX39XX/49XX SIO ports" 898 depends on SERIAL_TXX9 899 default "6" 900 901config SERIAL_TXX9_CONSOLE 902 bool "TMPTX39XX/49XX SIO Console support" 903 depends on SERIAL_TXX9=y 904 select SERIAL_CORE_CONSOLE 905 906config SERIAL_TXX9_STDSERIAL 907 bool "TX39XX/49XX SIO act as standard serial" 908 depends on !SERIAL_8250 && SERIAL_TXX9 909 910config SERIAL_VR41XX 911 tristate "NEC VR4100 series Serial Interface Unit support" 912 depends on CPU_VR41XX 913 select SERIAL_CORE 914 help 915 If you have a NEC VR4100 series processor and you want to use 916 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU) 917 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N. 918 919config SERIAL_VR41XX_CONSOLE 920 bool "Enable NEC VR4100 series Serial Interface Unit console" 921 depends on SERIAL_VR41XX=y 922 select SERIAL_CORE_CONSOLE 923 help 924 If you have a NEC VR4100 series processor and you want to use 925 a console on a serial port, say Y. Otherwise, say N. 926 927config SERIAL_JSM 928 tristate "Digi International NEO and Classic PCI Support" 929 depends on PCI 930 select SERIAL_CORE 931 help 932 This is a driver for Digi International's Neo and Classic series 933 of cards which provide multiple serial ports. You would need 934 something like this to connect more than two modems to your Linux 935 box, for instance in order to become a dial-in server. This driver 936 supports PCI boards only. 937 938 If you have a card like this, say Y here, otherwise say N. 939 940 To compile this driver as a module, choose M here: the 941 module will be called jsm. 942 943config SERIAL_MSM 944 tristate "MSM on-chip serial port support" 945 depends on ARCH_QCOM 946 select SERIAL_CORE 947 948config SERIAL_MSM_CONSOLE 949 bool "MSM serial console support" 950 depends on SERIAL_MSM=y 951 select SERIAL_CORE_CONSOLE 952 select SERIAL_EARLYCON 953 954config SERIAL_QCOM_GENI 955 tristate "QCOM on-chip GENI based serial port support" 956 depends on ARCH_QCOM || COMPILE_TEST 957 depends on QCOM_GENI_SE 958 select SERIAL_CORE 959 960config SERIAL_QCOM_GENI_CONSOLE 961 bool "QCOM GENI Serial Console support" 962 depends on SERIAL_QCOM_GENI 963 select SERIAL_CORE_CONSOLE 964 select SERIAL_EARLYCON 965 help 966 Serial console driver for Qualcomm Technologies Inc's GENI based 967 QUP hardware. 968 969config SERIAL_VT8500 970 bool "VIA VT8500 on-chip serial port support" 971 depends on ARCH_VT8500 972 select SERIAL_CORE 973 974config SERIAL_VT8500_CONSOLE 975 bool "VIA VT8500 serial console support" 976 depends on SERIAL_VT8500=y 977 select SERIAL_CORE_CONSOLE 978 979config SERIAL_OMAP 980 tristate "OMAP serial port support" 981 depends on ARCH_OMAP2PLUS 982 select SERIAL_CORE 983 help 984 If you have a machine based on an Texas Instruments OMAP CPU you 985 can enable its onboard serial ports by enabling this option. 986 987 By enabling this option you take advantage of dma feature available 988 with the omap-serial driver. DMA support can be enabled from platform 989 data. 990 991config SERIAL_OMAP_CONSOLE 992 bool "Console on OMAP serial port" 993 depends on SERIAL_OMAP=y 994 select SERIAL_CORE_CONSOLE 995 help 996 Select this option if you would like to use omap serial port as 997 console. 998 999 Even if you say Y here, the currently visible virtual console 1000 (/dev/tty0) will still be used as the system console by default, but 1001 you can alter that using a kernel command line option such as 1002 "console=ttyOx". (Try "man bootparam" or see the documentation of 1003 your boot loader about how to pass options to the kernel at 1004 boot time.) 1005 1006config SERIAL_SIFIVE 1007 tristate "SiFive UART support" 1008 depends on OF 1009 select SERIAL_CORE 1010 help 1011 Select this option if you are building a kernel for a device that 1012 contains a SiFive UART IP block. This type of UART is present on 1013 SiFive FU540 SoCs, among others. 1014 1015config SERIAL_SIFIVE_CONSOLE 1016 bool "Console on SiFive UART" 1017 depends on SERIAL_SIFIVE=y 1018 select SERIAL_CORE_CONSOLE 1019 select SERIAL_EARLYCON 1020 help 1021 Select this option if you would like to use a SiFive UART as the 1022 system console. 1023 1024 Even if you say Y here, the currently visible virtual console 1025 (/dev/tty0) will still be used as the system console by default, but 1026 you can alter that using a kernel command line option such as 1027 "console=ttySIFx". (Try "man bootparam" or see the documentation of 1028 your boot loader about how to pass options to the kernel at 1029 boot time.) 1030 1031config SERIAL_LANTIQ 1032 tristate "Lantiq serial driver" 1033 depends on (LANTIQ || X86) || COMPILE_TEST 1034 select SERIAL_CORE 1035 help 1036 Support for UART on Lantiq and Intel SoCs. 1037 To compile this driver as a module, select M here. The 1038 module will be called lantiq. 1039 1040config SERIAL_LANTIQ_CONSOLE 1041 bool "Console on Lantiq UART" 1042 depends on SERIAL_LANTIQ=y 1043 select SERIAL_CORE_CONSOLE 1044 select SERIAL_EARLYCON 1045 help 1046 Select this option if you would like to use a Lantiq UART as the 1047 system console. 1048 1049config SERIAL_QE 1050 tristate "Freescale QUICC Engine serial port support" 1051 depends on QUICC_ENGINE 1052 select SERIAL_CORE 1053 select FW_LOADER 1054 help 1055 This driver supports the QE serial ports on Freescale embedded 1056 PowerPC that contain a QUICC Engine. 1057 1058config SERIAL_SCCNXP 1059 tristate "SCCNXP serial port support" 1060 select SERIAL_CORE 1061 help 1062 This selects support for an advanced UART from NXP (Philips). 1063 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92, 1064 SC28L202, SCC68681 and SCC68692. 1065 1066config SERIAL_SCCNXP_CONSOLE 1067 bool "Console on SCCNXP serial port" 1068 depends on SERIAL_SCCNXP=y 1069 select SERIAL_CORE_CONSOLE 1070 help 1071 Support for console on SCCNXP serial ports. 1072 1073config SERIAL_SC16IS7XX_CORE 1074 tristate 1075 1076config SERIAL_SC16IS7XX 1077 tristate "SC16IS7xx serial support" 1078 select SERIAL_CORE 1079 depends on (SPI_MASTER && !I2C) || I2C 1080 help 1081 This selects support for SC16IS7xx serial ports. 1082 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752, 1083 SC16IS760 and SC16IS762. Select supported buses using options below. 1084 1085config SERIAL_SC16IS7XX_I2C 1086 bool "SC16IS7xx for I2C interface" 1087 depends on SERIAL_SC16IS7XX 1088 depends on I2C 1089 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1090 select REGMAP_I2C if I2C 1091 default y 1092 help 1093 Enable SC16IS7xx driver on I2C bus, 1094 If required say y, and say n to i2c if not required, 1095 Enabled by default to support oldconfig. 1096 You must select at least one bus for the driver to be built. 1097 1098config SERIAL_SC16IS7XX_SPI 1099 bool "SC16IS7xx for spi interface" 1100 depends on SERIAL_SC16IS7XX 1101 depends on SPI_MASTER 1102 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1103 select REGMAP_SPI if SPI_MASTER 1104 help 1105 Enable SC16IS7xx driver on SPI bus, 1106 If required say y, and say n to spi if not required, 1107 This is additional support to existing driver. 1108 You must select at least one bus for the driver to be built. 1109 1110config SERIAL_TIMBERDALE 1111 tristate "Support for timberdale UART" 1112 select SERIAL_CORE 1113 depends on X86_32 || COMPILE_TEST 1114 help 1115 Add support for UART controller on timberdale. 1116 1117config SERIAL_BCM63XX 1118 tristate "Broadcom BCM63xx/BCM33xx UART support" 1119 select SERIAL_CORE 1120 depends on COMMON_CLK 1121 help 1122 This enables the driver for the onchip UART core found on 1123 the following chipsets: 1124 1125 BCM33xx (cable modem) 1126 BCM63xx/BCM63xxx (DSL) 1127 BCM68xx (PON) 1128 BCM7xxx (STB) - DOCSIS console 1129 1130config SERIAL_BCM63XX_CONSOLE 1131 bool "Console on BCM63xx serial port" 1132 depends on SERIAL_BCM63XX=y 1133 select SERIAL_CORE_CONSOLE 1134 select SERIAL_EARLYCON 1135 help 1136 If you have enabled the serial port on the BCM63xx CPU 1137 you can make it the console by answering Y to this option. 1138 1139config SERIAL_GRLIB_GAISLER_APBUART 1140 tristate "GRLIB APBUART serial support" 1141 depends on OF && SPARC 1142 select SERIAL_CORE 1143 help 1144 Add support for the GRLIB APBUART serial port. 1145 1146config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE 1147 bool "Console on GRLIB APBUART serial port" 1148 depends on SERIAL_GRLIB_GAISLER_APBUART=y 1149 select SERIAL_CORE_CONSOLE 1150 help 1151 Support for running a console on the GRLIB APBUART 1152 1153config SERIAL_ALTERA_JTAGUART 1154 tristate "Altera JTAG UART support" 1155 select SERIAL_CORE 1156 help 1157 This driver supports the Altera JTAG UART port. 1158 1159config SERIAL_ALTERA_JTAGUART_CONSOLE 1160 bool "Altera JTAG UART console support" 1161 depends on SERIAL_ALTERA_JTAGUART=y 1162 select SERIAL_CORE_CONSOLE 1163 select SERIAL_EARLYCON 1164 help 1165 Enable a Altera JTAG UART port to be the system console. 1166 1167config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS 1168 bool "Bypass output when no connection" 1169 depends on SERIAL_ALTERA_JTAGUART_CONSOLE 1170 select SERIAL_CORE_CONSOLE 1171 help 1172 Bypass console output and keep going even if there is no 1173 JTAG terminal connection with the host. 1174 1175config SERIAL_ALTERA_UART 1176 tristate "Altera UART support" 1177 select SERIAL_CORE 1178 help 1179 This driver supports the Altera softcore UART port. 1180 1181config SERIAL_ALTERA_UART_MAXPORTS 1182 int "Maximum number of Altera UART ports" 1183 depends on SERIAL_ALTERA_UART 1184 default 4 1185 help 1186 This setting lets you define the maximum number of the Altera 1187 UART ports. The usual default varies from board to board, and 1188 this setting is a way of catering for that. 1189 1190config SERIAL_ALTERA_UART_BAUDRATE 1191 int "Default baudrate for Altera UART ports" 1192 depends on SERIAL_ALTERA_UART 1193 default 115200 1194 help 1195 This setting lets you define what the default baudrate is for the 1196 Altera UART ports. The usual default varies from board to board, 1197 and this setting is a way of catering for that. 1198 1199config SERIAL_ALTERA_UART_CONSOLE 1200 bool "Altera UART console support" 1201 depends on SERIAL_ALTERA_UART=y 1202 select SERIAL_CORE_CONSOLE 1203 select SERIAL_EARLYCON 1204 help 1205 Enable a Altera UART port to be the system console. 1206 1207config SERIAL_IFX6X60 1208 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)" 1209 depends on GPIOLIB || COMPILE_TEST 1210 depends on SPI && HAS_DMA 1211 help 1212 Support for the IFX6x60 modem devices on Intel MID platforms. 1213 1214config SERIAL_PCH_UART 1215 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART" 1216 depends on PCI && (X86_32 || MIPS || COMPILE_TEST) 1217 select SERIAL_CORE 1218 help 1219 This driver is for PCH(Platform controller Hub) UART of Intel EG20T 1220 which is an IOH(Input/Output Hub) for x86 embedded processor. 1221 Enabling PCH_DMA, this PCH UART works as DMA mode. 1222 1223 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1224 Output Hub), ML7213, ML7223 and ML7831. 1225 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 1226 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 1227 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1228 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1229 1230config SERIAL_PCH_UART_CONSOLE 1231 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH" 1232 depends on SERIAL_PCH_UART=y 1233 select SERIAL_CORE_CONSOLE 1234 help 1235 Say Y here if you wish to use the PCH UART as the system console 1236 (the system console is the device which receives all kernel messages and 1237 warnings and which allows logins in single user mode). 1238 1239config SERIAL_MXS_AUART 1240 tristate "MXS AUART support" 1241 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST 1242 select SERIAL_CORE 1243 select SERIAL_MCTRL_GPIO if GPIOLIB 1244 help 1245 This driver supports the MXS and Alphascale ASM9260 Application 1246 UART (AUART) port. 1247 1248config SERIAL_MXS_AUART_CONSOLE 1249 bool "MXS AUART console support" 1250 depends on SERIAL_MXS_AUART=y 1251 select SERIAL_CORE_CONSOLE 1252 help 1253 Enable a MXS AUART port to be the system console. 1254 1255config SERIAL_XILINX_PS_UART 1256 tristate "Cadence (Xilinx Zynq) UART support" 1257 depends on OF 1258 select SERIAL_CORE 1259 help 1260 This driver supports the Cadence UART. It is found e.g. in Xilinx 1261 Zynq. 1262 1263config SERIAL_XILINX_PS_UART_CONSOLE 1264 bool "Cadence UART console support" 1265 depends on SERIAL_XILINX_PS_UART=y 1266 select SERIAL_CORE_CONSOLE 1267 select SERIAL_EARLYCON 1268 help 1269 Enable a Cadence UART port to be the system console. 1270 1271config SERIAL_AR933X 1272 tristate "AR933X serial port support" 1273 depends on HAVE_CLK && ATH79 1274 select SERIAL_CORE 1275 select SERIAL_MCTRL_GPIO if GPIOLIB 1276 help 1277 If you have an Atheros AR933X SOC based board and want to use the 1278 built-in UART of the SoC, say Y to this option. 1279 1280 To compile this driver as a module, choose M here: the 1281 module will be called ar933x_uart. 1282 1283config SERIAL_AR933X_CONSOLE 1284 bool "Console on AR933X serial port" 1285 depends on SERIAL_AR933X=y 1286 select SERIAL_CORE_CONSOLE 1287 help 1288 Enable a built-in UART port of the AR933X to be the system console. 1289 1290config SERIAL_AR933X_NR_UARTS 1291 int "Maximum number of AR933X serial ports" 1292 depends on SERIAL_AR933X 1293 default "2" 1294 help 1295 Set this to the number of serial ports you want the driver 1296 to support. 1297 1298config SERIAL_EFM32_UART 1299 tristate "EFM32 UART/USART port" 1300 depends on ARM && (ARCH_EFM32 || COMPILE_TEST) 1301 select SERIAL_CORE 1302 help 1303 This driver support the USART and UART ports on 1304 Energy Micro's efm32 SoCs. 1305 1306config SERIAL_MPS2_UART_CONSOLE 1307 bool "MPS2 UART console support" 1308 depends on SERIAL_MPS2_UART 1309 select SERIAL_CORE_CONSOLE 1310 select SERIAL_EARLYCON 1311 1312config SERIAL_MPS2_UART 1313 bool "MPS2 UART port" 1314 depends on ARCH_MPS2 || COMPILE_TEST 1315 select SERIAL_CORE 1316 help 1317 This driver support the UART ports on ARM MPS2. 1318 1319config SERIAL_EFM32_UART_CONSOLE 1320 bool "EFM32 UART/USART console support" 1321 depends on SERIAL_EFM32_UART=y 1322 select SERIAL_CORE_CONSOLE 1323 1324config SERIAL_ARC 1325 tristate "ARC UART driver support" 1326 select SERIAL_CORE 1327 help 1328 Driver for on-chip UART for ARC(Synopsys) for the legacy 1329 FPGA Boards (ML50x/ARCAngel4) 1330 1331config SERIAL_ARC_CONSOLE 1332 bool "Console on ARC UART" 1333 depends on SERIAL_ARC=y 1334 select SERIAL_CORE_CONSOLE 1335 select SERIAL_EARLYCON 1336 help 1337 Enable system Console on ARC UART 1338 1339config SERIAL_ARC_NR_PORTS 1340 int "Number of ARC UART ports" 1341 depends on SERIAL_ARC 1342 range 1 3 1343 default "1" 1344 help 1345 Set this to the number of serial ports you want the driver 1346 to support. 1347 1348config SERIAL_RP2 1349 tristate "Comtrol RocketPort EXPRESS/INFINITY support" 1350 depends on PCI 1351 select SERIAL_CORE 1352 help 1353 This driver supports the Comtrol RocketPort EXPRESS and 1354 RocketPort INFINITY families of PCI/PCIe multiport serial adapters. 1355 These adapters use a "RocketPort 2" ASIC that is not compatible 1356 with the original RocketPort driver (CONFIG_ROCKETPORT). 1357 1358 To compile this driver as a module, choose M here: the 1359 module will be called rp2. 1360 1361 If you want to compile this driver into the kernel, say Y here. If 1362 you don't have a suitable RocketPort card installed, say N. 1363 1364config SERIAL_RP2_NR_UARTS 1365 int "Maximum number of RocketPort EXPRESS/INFINITY ports" 1366 depends on SERIAL_RP2 1367 default "32" 1368 help 1369 If multiple cards are present, the default limit of 32 ports may 1370 need to be increased. 1371 1372config SERIAL_FSL_LPUART 1373 tristate "Freescale lpuart serial port support" 1374 depends on HAS_DMA 1375 select SERIAL_CORE 1376 help 1377 Support for the on-chip lpuart on some Freescale SOCs. 1378 1379config SERIAL_FSL_LPUART_CONSOLE 1380 bool "Console on Freescale lpuart serial port" 1381 depends on SERIAL_FSL_LPUART=y 1382 select SERIAL_CORE_CONSOLE 1383 select SERIAL_EARLYCON 1384 help 1385 If you have enabled the lpuart serial port on the Freescale SoCs, 1386 you can make it the console by answering Y to this option. 1387 1388config SERIAL_FSL_LINFLEXUART 1389 tristate "Freescale LINFlexD UART serial port support" 1390 depends on PRINTK 1391 select SERIAL_CORE 1392 help 1393 Support for the on-chip LINFlexD UART on some Freescale SOCs. 1394 1395config SERIAL_FSL_LINFLEXUART_CONSOLE 1396 bool "Console on Freescale LINFlexD UART serial port" 1397 depends on SERIAL_FSL_LINFLEXUART=y 1398 select SERIAL_CORE_CONSOLE 1399 select SERIAL_EARLYCON 1400 help 1401 If you have enabled the LINFlexD UART serial port on the Freescale 1402 SoCs, you can make it the console by answering Y to this option. 1403 1404config SERIAL_CONEXANT_DIGICOLOR 1405 tristate "Conexant Digicolor CX92xxx USART serial port support" 1406 depends on OF 1407 select SERIAL_CORE 1408 help 1409 Support for the on-chip USART on Conexant Digicolor SoCs. 1410 1411config SERIAL_CONEXANT_DIGICOLOR_CONSOLE 1412 bool "Console on Conexant Digicolor serial port" 1413 depends on SERIAL_CONEXANT_DIGICOLOR=y 1414 select SERIAL_CORE_CONSOLE 1415 help 1416 If you have enabled the USART serial port on Conexant Digicolor 1417 SoCs, you can make it the console by answering Y to this option. 1418 1419config SERIAL_ST_ASC 1420 tristate "ST ASC serial port support" 1421 select SERIAL_CORE 1422 depends on ARM || COMPILE_TEST 1423 help 1424 This driver is for the on-chip Asychronous Serial Controller on 1425 STMicroelectronics STi SoCs. 1426 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality. 1427 It support all industry standard baud rates. 1428 1429 If unsure, say N. 1430 1431config SERIAL_ST_ASC_CONSOLE 1432 bool "Support for console on ST ASC" 1433 depends on SERIAL_ST_ASC=y 1434 select SERIAL_CORE_CONSOLE 1435 1436config SERIAL_MEN_Z135 1437 tristate "MEN 16z135 Support" 1438 select SERIAL_CORE 1439 depends on MCB 1440 help 1441 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core 1442 on a MCB carrier. 1443 1444 This driver can also be build as a module. If so, the module will be called 1445 men_z135_uart.ko 1446 1447config SERIAL_SPRD 1448 tristate "Support for Spreadtrum serial" 1449 select SERIAL_CORE 1450 depends on COMMON_CLK 1451 help 1452 This enables the driver for the Spreadtrum's serial. 1453 1454config SERIAL_SPRD_CONSOLE 1455 bool "Spreadtrum UART console support" 1456 depends on SERIAL_SPRD=y 1457 select SERIAL_CORE_CONSOLE 1458 select SERIAL_EARLYCON 1459 help 1460 Support for early debug console using Spreadtrum's serial. This enables 1461 the console before standard serial driver is probed. This is enabled 1462 with "earlycon" on the kernel command line. The console is 1463 enabled when early_param is processed. 1464 1465config SERIAL_STM32 1466 tristate "STMicroelectronics STM32 serial port support" 1467 select SERIAL_CORE 1468 depends on ARCH_STM32 || COMPILE_TEST 1469 select SERIAL_MCTRL_GPIO if GPIOLIB 1470 help 1471 This driver is for the on-chip Serial Controller on 1472 STMicroelectronics STM32 MCUs. 1473 USART supports Rx & Tx functionality. 1474 It support all industry standard baud rates. 1475 1476 If unsure, say N. 1477 1478config SERIAL_STM32_CONSOLE 1479 bool "Support for console on STM32" 1480 depends on SERIAL_STM32=y 1481 select SERIAL_CORE_CONSOLE 1482 1483config SERIAL_MVEBU_UART 1484 bool "Marvell EBU serial port support" 1485 depends on ARCH_MVEBU || COMPILE_TEST 1486 select SERIAL_CORE 1487 help 1488 This driver is for Marvell EBU SoC's UART. If you have a machine 1489 based on the Armada-3700 SoC and wish to use the on-board serial 1490 port, 1491 say 'Y' here. 1492 Otherwise, say 'N'. 1493 1494config SERIAL_MVEBU_CONSOLE 1495 bool "Console on Marvell EBU serial port" 1496 depends on SERIAL_MVEBU_UART 1497 select SERIAL_CORE_CONSOLE 1498 select SERIAL_EARLYCON 1499 default y 1500 help 1501 Say 'Y' here if you wish to use Armada-3700 UART as the system console. 1502 (the system console is the device which receives all kernel messages 1503 and warnings and which allows logins in single user mode) 1504 Otherwise, say 'N'. 1505 1506config SERIAL_OWL 1507 tristate "Actions Semi Owl serial port support" 1508 depends on ARCH_ACTIONS || COMPILE_TEST 1509 select SERIAL_CORE 1510 help 1511 This driver is for Actions Semiconductor S500/S900 SoC's UART. 1512 Say 'Y' here if you wish to use the on-board serial port. 1513 Otherwise, say 'N'. 1514 1515config SERIAL_OWL_CONSOLE 1516 bool "Console on Actions Semi Owl serial port" 1517 depends on SERIAL_OWL=y 1518 select SERIAL_CORE_CONSOLE 1519 select SERIAL_EARLYCON 1520 default y 1521 help 1522 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART 1523 as the system console. 1524 1525config SERIAL_RDA 1526 bool "RDA Micro serial port support" 1527 depends on ARCH_RDA || COMPILE_TEST 1528 select SERIAL_CORE 1529 help 1530 This driver is for RDA8810PL SoC's UART. 1531 Say 'Y' here if you wish to use the on-board serial port. 1532 Otherwise, say 'N'. 1533 1534config SERIAL_RDA_CONSOLE 1535 bool "Console on RDA Micro serial port" 1536 depends on SERIAL_RDA=y 1537 select SERIAL_CORE_CONSOLE 1538 select SERIAL_EARLYCON 1539 default y 1540 help 1541 Say 'Y' here if you wish to use the RDA8810PL UART as the system 1542 console. Only earlycon is implemented currently. 1543 1544config SERIAL_MILBEAUT_USIO 1545 tristate "Milbeaut USIO/UART serial port support" 1546 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF) 1547 default ARCH_MILBEAUT 1548 select SERIAL_CORE 1549 help 1550 This selects the USIO/UART IP found in Socionext Milbeaut SoCs. 1551 1552config SERIAL_MILBEAUT_USIO_PORTS 1553 int "Maximum number of CSIO/UART ports (1-8)" 1554 range 1 8 1555 depends on SERIAL_MILBEAUT_USIO 1556 default "4" 1557 1558config SERIAL_MILBEAUT_USIO_CONSOLE 1559 bool "Support for console on MILBEAUT USIO/UART serial port" 1560 depends on SERIAL_MILBEAUT_USIO=y 1561 default y 1562 select SERIAL_CORE_CONSOLE 1563 select SERIAL_EARLYCON 1564 help 1565 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut 1566 SoCs as the system console (the system console is the device which 1567 receives all kernel messages and warnings and which allows logins in 1568 single user mode). 1569 1570endmenu 1571 1572config SERIAL_MCTRL_GPIO 1573 tristate 1574