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 select SERIAL_CORE 240 help 241 Support for the on-chip UARTs on the Samsung S3C24XX series CPUs, 242 providing /dev/ttySAC0, 1 and 2 (note, some machines may not 243 provide all of these ports, depending on how the serial port 244 pins are configured. 245 246config SERIAL_SAMSUNG_UARTS_4 247 bool 248 depends on SERIAL_SAMSUNG 249 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442) 250 help 251 Internal node for the common case of 4 Samsung compatible UARTs 252 253config SERIAL_SAMSUNG_UARTS 254 int 255 depends on SERIAL_SAMSUNG 256 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416 257 default 3 258 help 259 Select the number of available UART ports for the Samsung S3C 260 serial driver 261 262config SERIAL_SAMSUNG_CONSOLE 263 bool "Support for console on Samsung SoC serial port" 264 depends on SERIAL_SAMSUNG=y 265 select SERIAL_CORE_CONSOLE 266 select SERIAL_EARLYCON 267 help 268 Allow selection of the S3C24XX on-board serial ports for use as 269 an virtual console. 270 271 Even if you say Y here, the currently visible virtual console 272 (/dev/tty0) will still be used as the system console by default, but 273 you can alter that using a kernel command line option such as 274 "console=ttySACx". (Try "man bootparam" or see the documentation of 275 your boot loader about how to pass options to the kernel at 276 boot time.) 277 278config SERIAL_SIRFSOC 279 tristate "SiRF SoC Platform Serial port support" 280 depends on ARCH_SIRF 281 select SERIAL_CORE 282 help 283 Support for the on-chip UART on the CSR SiRFprimaII series, 284 providing /dev/ttySiRF0, 1 and 2 (note, some machines may not 285 provide all of these ports, depending on how the serial port 286 pins are configured). 287 288config SERIAL_SIRFSOC_CONSOLE 289 bool "Support for console on SiRF SoC serial port" 290 depends on SERIAL_SIRFSOC=y 291 select SERIAL_CORE_CONSOLE 292 help 293 Even if you say Y here, the currently visible virtual console 294 (/dev/tty0) will still be used as the system console by default, but 295 you can alter that using a kernel command line option such as 296 "console=ttySiRFx". (Try "man bootparam" or see the documentation of 297 your boot loader about how to pass options to the kernel at 298 boot time.) 299 300config SERIAL_TEGRA 301 tristate "NVIDIA Tegra20/30 SoC serial controller" 302 depends on ARCH_TEGRA && TEGRA20_APB_DMA 303 select SERIAL_CORE 304 help 305 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs 306 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not 307 provide all of these ports, depending on how the serial port 308 are enabled). This driver uses the APB DMA to achieve higher baudrate 309 and better performance. 310 311config SERIAL_TEGRA_TCU 312 tristate "NVIDIA Tegra Combined UART" 313 depends on ARCH_TEGRA && TEGRA_HSP_MBOX 314 select SERIAL_CORE 315 help 316 Support for the mailbox-based TCU (Tegra Combined UART) serial port. 317 TCU is a virtual serial port that allows multiplexing multiple data 318 streams into a single hardware serial port. 319 320config SERIAL_TEGRA_TCU_CONSOLE 321 bool "Support for console on a Tegra TCU serial port" 322 depends on SERIAL_TEGRA_TCU=y 323 select SERIAL_CORE_CONSOLE 324 default y 325 help 326 If you say Y here, it will be possible to use a the Tegra TCU as the 327 system console (the system console is the device which receives all 328 kernel messages and warnings and which allows logins in single user 329 mode). 330 331 If unsure, say Y. 332 333config SERIAL_MAX3100 334 tristate "MAX3100 support" 335 depends on SPI 336 select SERIAL_CORE 337 help 338 MAX3100 chip support 339 340config SERIAL_MAX310X 341 tristate "MAX310X support" 342 depends on SPI_MASTER 343 select SERIAL_CORE 344 select REGMAP_SPI if SPI_MASTER 345 help 346 This selects support for an advanced UART from Maxim (Dallas). 347 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830. 348 Each IC contains 128 words each of receive and transmit FIFO 349 that can be controlled through I2C or high-speed SPI. 350 351 Say Y here if you want to support this ICs. 352 353config SERIAL_DZ 354 bool "DECstation DZ serial driver" 355 depends on MACH_DECSTATION && 32BIT 356 select SERIAL_CORE 357 default y 358 help 359 DZ11-family serial controllers for DECstations and VAXstations, 360 including the DC7085, M7814, and M7819. 361 362config SERIAL_DZ_CONSOLE 363 bool "Support console on DECstation DZ serial driver" 364 depends on SERIAL_DZ=y 365 select SERIAL_CORE_CONSOLE 366 default y 367 help 368 If you say Y here, it will be possible to use a serial port as the 369 system console (the system console is the device which receives all 370 kernel messages and warnings and which allows logins in single user 371 mode). 372 373 Note that the firmware uses ttyS3 as the serial console on 374 DECstations that use this driver. 375 376 If unsure, say Y. 377 378config SERIAL_ZS 379 tristate "DECstation Z85C30 serial support" 380 depends on MACH_DECSTATION 381 select SERIAL_CORE 382 default y 383 help 384 Support for the Zilog 85C350 serial communications controller used 385 for serial ports in newer DECstation systems. These include the 386 DECsystem 5900 and all models of the DECstation and DECsystem 5000 387 systems except from model 200. 388 389 If unsure, say Y. To compile this driver as a module, choose M here: 390 the module will be called zs. 391 392config SERIAL_ZS_CONSOLE 393 bool "Support for console on a DECstation Z85C30 serial port" 394 depends on SERIAL_ZS=y 395 select SERIAL_CORE_CONSOLE 396 default y 397 help 398 If you say Y here, it will be possible to use a serial port as the 399 system console (the system console is the device which receives all 400 kernel messages and warnings and which allows logins in single user 401 mode). 402 403 Note that the firmware uses ttyS1 as the serial console on the 404 Maxine and ttyS3 on the others using this driver. 405 406 If unsure, say Y. 407 408config SERIAL_21285 409 tristate "DC21285 serial port support" 410 depends on FOOTBRIDGE 411 select SERIAL_CORE 412 help 413 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/ 414 PCI bridge you can enable its onboard serial port by enabling this 415 option. 416 417config SERIAL_21285_CONSOLE 418 bool "Console on DC21285 serial port" 419 depends on SERIAL_21285=y 420 select SERIAL_CORE_CONSOLE 421 help 422 If you have enabled the serial port on the 21285 footbridge you can 423 make it the console by answering Y to this option. 424 425 Even if you say Y here, the currently visible virtual console 426 (/dev/tty0) will still be used as the system console by default, but 427 you can alter that using a kernel command line option such as 428 "console=ttyFB". (Try "man bootparam" or see the documentation of 429 your boot loader (lilo or loadlin) about how to pass options to the 430 kernel at boot time.) 431 432config SERIAL_PXA 433 bool "PXA serial port support (DEPRECATED)" 434 depends on ARCH_PXA || ARCH_MMP 435 select SERIAL_CORE 436 select SERIAL_8250_PXA if SERIAL_8250=y 437 select SERIAL_PXA_NON8250 if !SERIAL_8250=y 438 help 439 If you have a machine based on an Intel XScale PXA2xx CPU you 440 can enable its onboard serial ports by enabling this option. 441 442 Unless you have a specific need, you should use SERIAL_8250_PXA 443 instead of this. 444 445config SERIAL_PXA_NON8250 446 bool 447 depends on !SERIAL_8250 448 449config SERIAL_PXA_CONSOLE 450 bool "Console on PXA serial port (DEPRECATED)" 451 depends on SERIAL_PXA 452 select SERIAL_CORE_CONSOLE 453 select SERIAL_8250_CONSOLE if SERIAL_8250=y 454 help 455 If you have enabled the serial port on the Intel XScale PXA 456 CPU you can make it the console by answering Y to this option. 457 458 Even if you say Y here, the currently visible virtual console 459 (/dev/tty0) will still be used as the system console by default, but 460 you can alter that using a kernel command line option such as 461 "console=ttySA0". (Try "man bootparam" or see the documentation of 462 your boot loader (lilo or loadlin) about how to pass options to the 463 kernel at boot time.) 464 465 Unless you have a specific need, you should use SERIAL_8250_PXA 466 and SERIAL_8250_CONSOLE instead of this. 467 468config SERIAL_SA1100 469 bool "SA1100 serial port support" 470 depends on ARCH_SA1100 471 select SERIAL_CORE 472 select SERIAL_MCTRL_GPIO if GPIOLIB 473 help 474 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you 475 can enable its onboard serial port by enabling this option. 476 Please read <file:Documentation/arm/sa1100/serial_uart.rst> for further 477 info. 478 479config SERIAL_SA1100_CONSOLE 480 bool "Console on SA1100 serial port" 481 depends on SERIAL_SA1100 482 select SERIAL_CORE_CONSOLE 483 help 484 If you have enabled the serial port on the SA1100/SA1110 StrongARM 485 CPU you can make it the console by answering Y to this option. 486 487 Even if you say Y here, the currently visible virtual console 488 (/dev/tty0) will still be used as the system console by default, but 489 you can alter that using a kernel command line option such as 490 "console=ttySA0". (Try "man bootparam" or see the documentation of 491 your boot loader (lilo or loadlin) about how to pass options to the 492 kernel at boot time.) 493 494config SERIAL_IMX 495 tristate "IMX serial port support" 496 depends on ARCH_MXC || COMPILE_TEST 497 select SERIAL_CORE 498 select RATIONAL 499 select SERIAL_MCTRL_GPIO if GPIOLIB 500 help 501 If you have a machine based on a Motorola IMX CPU you 502 can enable its onboard serial port by enabling this option. 503 504config SERIAL_IMX_CONSOLE 505 tristate "Console on IMX serial port" 506 depends on SERIAL_IMX 507 select SERIAL_CORE_CONSOLE 508 help 509 If you have enabled the serial port on the Freescale IMX 510 CPU you can make it the console by answering Y/M to this option. 511 512 Even if you say Y/M here, the currently visible virtual console 513 (/dev/tty0) will still be used as the system console by default, but 514 you can alter that using a kernel command line option such as 515 "console=ttymxc0". (Try "man bootparam" or see the documentation of 516 your bootloader about how to pass options to the kernel at boot time.) 517 518config SERIAL_IMX_EARLYCON 519 bool "Earlycon on IMX serial port" 520 depends on ARCH_MXC || COMPILE_TEST 521 depends on OF 522 select SERIAL_EARLYCON 523 select SERIAL_CORE_CONSOLE 524 default y if SERIAL_IMX_CONSOLE 525 help 526 If you have enabled the earlycon on the Freescale IMX 527 CPU you can make it the earlycon by answering Y to this option. 528 529config SERIAL_UARTLITE 530 tristate "Xilinx uartlite serial port support" 531 depends on HAS_IOMEM 532 select SERIAL_CORE 533 help 534 Say Y here if you want to use the Xilinx uartlite serial controller. 535 536 To compile this driver as a module, choose M here: the 537 module will be called uartlite. 538 539config SERIAL_UARTLITE_CONSOLE 540 bool "Support for console on Xilinx uartlite serial port" 541 depends on SERIAL_UARTLITE=y 542 select SERIAL_CORE_CONSOLE 543 select SERIAL_EARLYCON 544 help 545 Say Y here if you wish to use a Xilinx uartlite as the system 546 console (the system console is the device which receives all kernel 547 messages and warnings and which allows logins in single user mode). 548 549config SERIAL_UARTLITE_NR_UARTS 550 int "Maximum number of uartlite serial ports" 551 depends on SERIAL_UARTLITE 552 range 1 256 553 default 1 554 help 555 Set this to the number of uartlites in your system, or the number 556 you think you might implement. 557 558config SERIAL_SUNCORE 559 bool 560 depends on SPARC 561 select SERIAL_CORE 562 select SERIAL_CORE_CONSOLE 563 default y 564 565config SERIAL_SUNZILOG 566 tristate "Sun Zilog8530 serial support" 567 depends on SPARC 568 help 569 This driver supports the Zilog8530 serial ports found on many Sparc 570 systems. Say Y or M if you want to be able to these serial ports. 571 572config SERIAL_SUNZILOG_CONSOLE 573 bool "Console on Sun Zilog8530 serial port" 574 depends on SERIAL_SUNZILOG=y 575 help 576 If you would like to be able to use the Zilog8530 serial port 577 on your Sparc system as the console, you can do so by answering 578 Y to this option. 579 580config SERIAL_SUNSU 581 tristate "Sun SU serial support" 582 depends on SPARC && PCI 583 help 584 This driver supports the 8250 serial ports that run the keyboard and 585 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able 586 to these serial ports. 587 588config SERIAL_SUNSU_CONSOLE 589 bool "Console on Sun SU serial port" 590 depends on SERIAL_SUNSU=y 591 help 592 If you would like to be able to use the SU serial port 593 on your Sparc system as the console, you can do so by answering 594 Y to this option. 595 596config SERIAL_MUX 597 tristate "Serial MUX support" 598 depends on GSC 599 select SERIAL_CORE 600 default y 601 help 602 Saying Y here will enable the hardware MUX serial driver for 603 the Nova, K class systems and D class with a 'remote control card'. 604 The hardware MUX is not 8250/16550 compatible therefore the 605 /dev/ttyB0 device is shared between the Serial MUX and the PDC 606 software console. The following steps need to be completed to use 607 the Serial MUX: 608 609 1. create the device entry (mknod /dev/ttyB0 c 11 0) 610 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 611 3. Add device ttyB0 to /etc/securetty (if you want to log on as 612 root on this console.) 613 4. Change the kernel command console parameter to: console=ttyB0 614 615config SERIAL_MUX_CONSOLE 616 bool "Support for console on serial MUX" 617 depends on SERIAL_MUX=y 618 select SERIAL_CORE_CONSOLE 619 default y 620 621config PDC_CONSOLE 622 bool "PDC software console support" 623 depends on PARISC && !SERIAL_MUX && VT 624 help 625 Saying Y here will enable the software based PDC console to be 626 used as the system console. This is useful for machines in 627 which the hardware based console has not been written yet. The 628 following steps must be completed to use the PDC console: 629 630 1. create the device entry (mknod /dev/ttyB0 c 11 0) 631 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 632 3. Add device ttyB0 to /etc/securetty (if you want to log on as 633 root on this console.) 634 4. Change the kernel command console parameter to: console=ttyB0 635 636config SERIAL_SUNSAB 637 tristate "Sun Siemens SAB82532 serial support" 638 depends on SPARC && PCI 639 help 640 This driver supports the Siemens SAB82532 DUSCC serial ports on newer 641 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these 642 serial ports. 643 644config SERIAL_SUNSAB_CONSOLE 645 bool "Console on Sun Siemens SAB82532 serial port" 646 depends on SERIAL_SUNSAB=y 647 help 648 If you would like to be able to use the SAB82532 serial port 649 on your Sparc system as the console, you can do so by answering 650 Y to this option. 651 652config SERIAL_SUNHV 653 bool "Sun4v Hypervisor Console support" 654 depends on SPARC64 655 help 656 This driver supports the console device found on SUN4V Sparc 657 systems. Say Y if you want to be able to use this device. 658 659config SERIAL_IP22_ZILOG 660 tristate "SGI Zilog8530 serial support" 661 depends on SGI_HAS_ZILOG 662 select SERIAL_CORE 663 help 664 This driver supports the Zilog8530 serial ports found on SGI 665 systems. Say Y or M if you want to be able to these serial ports. 666 667config SERIAL_IP22_ZILOG_CONSOLE 668 bool "Console on SGI Zilog8530 serial port" 669 depends on SERIAL_IP22_ZILOG=y 670 select SERIAL_CORE_CONSOLE 671 672config SERIAL_SH_SCI 673 tristate "SuperH SCI(F) serial port support" 674 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST 675 select SERIAL_CORE 676 select SERIAL_MCTRL_GPIO if GPIOLIB 677 678config SERIAL_SH_SCI_NR_UARTS 679 int "Maximum number of SCI(F) serial ports" if EXPERT 680 range 1 64 if 64BIT 681 range 1 32 if !64BIT 682 depends on SERIAL_SH_SCI 683 default "3" if H8300 684 default "10" if SUPERH 685 default "18" if ARCH_RENESAS 686 default "2" 687 688config SERIAL_SH_SCI_CONSOLE 689 bool "Support for console on SuperH SCI(F)" if EXPERT 690 depends on SERIAL_SH_SCI=y 691 select SERIAL_CORE_CONSOLE 692 default y 693 694config SERIAL_SH_SCI_EARLYCON 695 bool "Support for early console on SuperH SCI(F)" if EXPERT 696 depends on SERIAL_SH_SCI=y 697 select SERIAL_CORE_CONSOLE 698 select SERIAL_EARLYCON 699 default ARCH_RENESAS || H8300 700 701config SERIAL_SH_SCI_DMA 702 bool "DMA support" if EXPERT 703 depends on SERIAL_SH_SCI && DMA_ENGINE 704 default ARCH_RENESAS 705 706config SERIAL_PNX8XXX 707 bool "Enable PNX8XXX SoCs' UART Support" 708 depends on SOC_PNX833X 709 select SERIAL_CORE 710 help 711 If you have a MIPS-based Philips SoC such as PNX8330 and you want 712 to use serial ports, say Y. Otherwise, say N. 713 714config SERIAL_PNX8XXX_CONSOLE 715 bool "Enable PNX8XX0 serial console" 716 depends on SERIAL_PNX8XXX 717 select SERIAL_CORE_CONSOLE 718 help 719 If you have a MIPS-based Philips SoC such as PNX8330 and you want 720 to use serial console, say Y. Otherwise, say N. 721 722config SERIAL_HS_LPC32XX 723 tristate "LPC32XX high speed serial port support" 724 depends on ARCH_LPC32XX || COMPILE_TEST 725 depends on OF 726 select SERIAL_CORE 727 help 728 Support for the LPC32XX high speed serial ports (up to 900kbps). 729 Those are UARTs completely different from the Standard UARTs on the 730 LPC32XX SoC. 731 Choose M or Y here to build this driver. 732 733config SERIAL_HS_LPC32XX_CONSOLE 734 bool "Enable LPC32XX high speed UART serial console" 735 depends on SERIAL_HS_LPC32XX=y 736 select SERIAL_CORE_CONSOLE 737 help 738 If you would like to be able to use one of the high speed serial 739 ports on the LPC32XX as the console, you can do so by answering 740 Y to this option. 741 742config SERIAL_CORE 743 tristate 744 745config SERIAL_CORE_CONSOLE 746 bool 747 748config CONSOLE_POLL 749 bool 750 751config SERIAL_MCF 752 bool "Coldfire serial support" 753 depends on COLDFIRE 754 select SERIAL_CORE 755 help 756 This serial driver supports the Freescale Coldfire serial ports. 757 758config SERIAL_MCF_BAUDRATE 759 int "Default baudrate for Coldfire serial ports" 760 depends on SERIAL_MCF 761 default 19200 762 help 763 This setting lets you define what the default baudrate is for the 764 ColdFire serial ports. The usual default varies from board to board, 765 and this setting is a way of catering for that. 766 767config SERIAL_MCF_CONSOLE 768 bool "Coldfire serial console support" 769 depends on SERIAL_MCF 770 select SERIAL_CORE_CONSOLE 771 help 772 Enable a ColdFire internal serial port to be the system console. 773 774config SERIAL_PMACZILOG 775 tristate "Mac or PowerMac z85c30 ESCC support" 776 depends on (M68K && MAC) || PPC_PMAC 777 select SERIAL_CORE 778 help 779 This driver supports the Zilog z85C30 serial ports found on 780 (Power)Mac machines. 781 Say Y or M if you want to be able to these serial ports. 782 783config SERIAL_PMACZILOG_TTYS 784 bool "Use ttySn device nodes for Zilog z85c30" 785 depends on SERIAL_PMACZILOG 786 help 787 The pmac_zilog driver for the z85C30 chip on many powermacs 788 historically used the device numbers for /dev/ttySn. The 789 8250 serial port driver also uses these numbers, which means 790 the two drivers being unable to coexist; you could not use 791 both z85C30 and 8250 type ports at the same time. 792 793 If this option is not selected, the pmac_zilog driver will 794 use the device numbers allocated for /dev/ttyPZn. This allows 795 the pmac_zilog and 8250 drivers to co-exist, but may cause 796 existing userspace setups to break. Programs that need to 797 access the built-in serial ports on powermacs will need to 798 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn. 799 800 If you enable this option, any z85c30 ports in the system will 801 be registered as ttyS0 onwards as in the past, and you will be 802 unable to use the 8250 module for PCMCIA or other 16C550-style 803 UARTs. 804 805 Say N unless you need the z85c30 ports on your (Power)Mac 806 to appear as /dev/ttySn. 807 808config SERIAL_PMACZILOG_CONSOLE 809 bool "Console on Mac or PowerMac z85c30 serial port" 810 depends on SERIAL_PMACZILOG=y 811 select SERIAL_CORE_CONSOLE 812 help 813 If you would like to be able to use the z85c30 serial port 814 on your (Power)Mac as the console, you can do so by answering 815 Y to this option. 816 817config SERIAL_CPM 818 tristate "CPM SCC/SMC serial port support" 819 depends on CPM2 || CPM1 820 select SERIAL_CORE 821 help 822 This driver supports the SCC and SMC serial ports on Motorola 823 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx) 824 825config SERIAL_CPM_CONSOLE 826 bool "Support for console on CPM SCC/SMC serial port" 827 depends on SERIAL_CPM=y 828 select SERIAL_CORE_CONSOLE 829 help 830 Say Y here if you wish to use a SCC or SMC CPM UART as the system 831 console (the system console is the device which receives all kernel 832 messages and warnings and which allows logins in single user mode). 833 834 Even if you say Y here, the currently visible framebuffer console 835 (/dev/tty0) will still be used as the system console by default, but 836 you can alter that using a kernel command line option such as 837 "console=ttyCPM0". (Try "man bootparam" or see the documentation of 838 your boot loader (lilo or loadlin) about how to pass options to the 839 kernel at boot time.) 840 841config SERIAL_PIC32 842 tristate "Microchip PIC32 serial support" 843 depends on MACH_PIC32 844 select SERIAL_CORE 845 help 846 If you have a PIC32, this driver supports the serial ports. 847 848 Say Y or M to use PIC32 serial ports, otherwise say N. Note that 849 to use a serial port as a console, this must be included in kernel and 850 not as a module. 851 852config SERIAL_PIC32_CONSOLE 853 bool "PIC32 serial console support" 854 depends on SERIAL_PIC32 855 select SERIAL_CORE_CONSOLE 856 help 857 If you have a PIC32, this driver supports the putting a console on one 858 of the serial ports. 859 860 Say Y to use the PIC32 console, otherwise say N. 861 862config SERIAL_MPC52xx 863 tristate "Freescale MPC52xx/MPC512x family PSC serial support" 864 depends on PPC_MPC52xx || PPC_MPC512x 865 select SERIAL_CORE 866 help 867 This driver supports MPC52xx and MPC512x PSC serial ports. If you would 868 like to use them, you must answer Y or M to this option. Note that 869 for use as console, it must be included in kernel and not as a 870 module. 871 872config SERIAL_MPC52xx_CONSOLE 873 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port" 874 depends on SERIAL_MPC52xx=y 875 select SERIAL_CORE_CONSOLE 876 help 877 Select this options if you'd like to use one of the PSC serial port 878 of the Freescale MPC52xx family as a console. 879 880config SERIAL_MPC52xx_CONSOLE_BAUD 881 int "Freescale MPC52xx/MPC512x family PSC serial port baud" 882 depends on SERIAL_MPC52xx_CONSOLE=y 883 default "9600" 884 help 885 Select the MPC52xx console baud rate. 886 This value is only used if the bootloader doesn't pass in the 887 console baudrate 888 889config SERIAL_ICOM 890 tristate "IBM Multiport Serial Adapter" 891 depends on PCI && PPC_PSERIES 892 select SERIAL_CORE 893 select FW_LOADER 894 help 895 This driver is for a family of multiport serial adapters 896 including 2 port RVX, 2 port internal modem, 4 port internal 897 modem and a split 1 port RVX and 1 port internal modem. 898 899 This driver can also be built as a module. If so, the module 900 will be called icom. 901 902config SERIAL_TXX9 903 bool "TMPTX39XX/49XX SIO support" 904 depends on HAS_TXX9_SERIAL 905 select SERIAL_CORE 906 default y 907 908config HAS_TXX9_SERIAL 909 bool 910 911config SERIAL_TXX9_NR_UARTS 912 int "Maximum number of TMPTX39XX/49XX SIO ports" 913 depends on SERIAL_TXX9 914 default "6" 915 916config SERIAL_TXX9_CONSOLE 917 bool "TMPTX39XX/49XX SIO Console support" 918 depends on SERIAL_TXX9=y 919 select SERIAL_CORE_CONSOLE 920 921config SERIAL_TXX9_STDSERIAL 922 bool "TX39XX/49XX SIO act as standard serial" 923 depends on !SERIAL_8250 && SERIAL_TXX9 924 925config SERIAL_VR41XX 926 tristate "NEC VR4100 series Serial Interface Unit support" 927 depends on CPU_VR41XX 928 select SERIAL_CORE 929 help 930 If you have a NEC VR4100 series processor and you want to use 931 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU) 932 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N. 933 934config SERIAL_VR41XX_CONSOLE 935 bool "Enable NEC VR4100 series Serial Interface Unit console" 936 depends on SERIAL_VR41XX=y 937 select SERIAL_CORE_CONSOLE 938 help 939 If you have a NEC VR4100 series processor and you want to use 940 a console on a serial port, say Y. Otherwise, say N. 941 942config SERIAL_JSM 943 tristate "Digi International NEO and Classic PCI Support" 944 depends on PCI 945 select SERIAL_CORE 946 help 947 This is a driver for Digi International's Neo and Classic series 948 of cards which provide multiple serial ports. You would need 949 something like this to connect more than two modems to your Linux 950 box, for instance in order to become a dial-in server. This driver 951 supports PCI boards only. 952 953 If you have a card like this, say Y here, otherwise say N. 954 955 To compile this driver as a module, choose M here: the 956 module will be called jsm. 957 958config SERIAL_MSM 959 tristate "MSM on-chip serial port support" 960 depends on ARCH_QCOM 961 select SERIAL_CORE 962 963config SERIAL_MSM_CONSOLE 964 bool "MSM serial console support" 965 depends on SERIAL_MSM=y 966 select SERIAL_CORE_CONSOLE 967 select SERIAL_EARLYCON 968 969config SERIAL_MSM_GENI_EARLY_CONSOLE 970 bool "MSM on-chip GENI HW based early console support" 971 select SERIAL_CORE_CONSOLE 972 select SERIAL_EARLYCON 973 help 974 Serial early console driver for Qualcomm Technologies Inc's GENI 975 based QUP hardware. 976 977config SERIAL_QCOM_GENI 978 tristate "QCOM on-chip GENI based serial port support" 979 depends on ARCH_QCOM || COMPILE_TEST 980 depends on QCOM_GENI_SE 981 select SERIAL_CORE 982 983config SERIAL_QCOM_GENI_CONSOLE 984 bool "QCOM GENI Serial Console support" 985 depends on SERIAL_QCOM_GENI 986 select SERIAL_CORE_CONSOLE 987 select SERIAL_EARLYCON 988 help 989 Serial console driver for Qualcomm Technologies Inc's GENI based 990 QUP hardware. 991 992config SERIAL_VT8500 993 bool "VIA VT8500 on-chip serial port support" 994 depends on ARCH_VT8500 995 select SERIAL_CORE 996 997config SERIAL_VT8500_CONSOLE 998 bool "VIA VT8500 serial console support" 999 depends on SERIAL_VT8500=y 1000 select SERIAL_CORE_CONSOLE 1001 1002config SERIAL_OMAP 1003 tristate "OMAP serial port support" 1004 depends on ARCH_OMAP2PLUS 1005 select SERIAL_CORE 1006 help 1007 If you have a machine based on an Texas Instruments OMAP CPU you 1008 can enable its onboard serial ports by enabling this option. 1009 1010 By enabling this option you take advantage of dma feature available 1011 with the omap-serial driver. DMA support can be enabled from platform 1012 data. 1013 1014config SERIAL_OMAP_CONSOLE 1015 bool "Console on OMAP serial port" 1016 depends on SERIAL_OMAP=y 1017 select SERIAL_CORE_CONSOLE 1018 help 1019 Select this option if you would like to use omap serial port as 1020 console. 1021 1022 Even if you say Y here, the currently visible virtual console 1023 (/dev/tty0) will still be used as the system console by default, but 1024 you can alter that using a kernel command line option such as 1025 "console=ttyOx". (Try "man bootparam" or see the documentation of 1026 your boot loader about how to pass options to the kernel at 1027 boot time.) 1028 1029config SERIAL_SIFIVE 1030 tristate "SiFive UART support" 1031 depends on OF 1032 select SERIAL_CORE 1033 help 1034 Select this option if you are building a kernel for a device that 1035 contains a SiFive UART IP block. This type of UART is present on 1036 SiFive FU540 SoCs, among others. 1037 1038config SERIAL_SIFIVE_CONSOLE 1039 bool "Console on SiFive UART" 1040 depends on SERIAL_SIFIVE=y 1041 select SERIAL_CORE_CONSOLE 1042 select SERIAL_EARLYCON 1043 help 1044 Select this option if you would like to use a SiFive UART as the 1045 system console. 1046 1047 Even if you say Y here, the currently visible virtual console 1048 (/dev/tty0) will still be used as the system console by default, but 1049 you can alter that using a kernel command line option such as 1050 "console=ttySIFx". (Try "man bootparam" or see the documentation of 1051 your boot loader about how to pass options to the kernel at 1052 boot time.) 1053 1054config SERIAL_LANTIQ 1055 tristate "Lantiq serial driver" 1056 depends on (LANTIQ || X86) || COMPILE_TEST 1057 select SERIAL_CORE 1058 help 1059 Support for UART on Lantiq and Intel SoCs. 1060 To compile this driver as a module, select M here. The 1061 module will be called lantiq. 1062 1063config SERIAL_LANTIQ_CONSOLE 1064 bool "Console on Lantiq UART" 1065 depends on SERIAL_LANTIQ=y 1066 select SERIAL_CORE_CONSOLE 1067 select SERIAL_EARLYCON 1068 help 1069 Select this option if you would like to use a Lantiq UART as the 1070 system console. 1071 1072config SERIAL_QE 1073 tristate "Freescale QUICC Engine serial port support" 1074 depends on QUICC_ENGINE 1075 select SERIAL_CORE 1076 select FW_LOADER 1077 help 1078 This driver supports the QE serial ports on Freescale embedded 1079 PowerPC that contain a QUICC Engine. 1080 1081config SERIAL_SCCNXP 1082 tristate "SCCNXP serial port support" 1083 select SERIAL_CORE 1084 help 1085 This selects support for an advanced UART from NXP (Philips). 1086 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92, 1087 SC28L202, SCC68681 and SCC68692. 1088 1089config SERIAL_SCCNXP_CONSOLE 1090 bool "Console on SCCNXP serial port" 1091 depends on SERIAL_SCCNXP=y 1092 select SERIAL_CORE_CONSOLE 1093 help 1094 Support for console on SCCNXP serial ports. 1095 1096config SERIAL_SC16IS7XX_CORE 1097 tristate 1098 1099config SERIAL_SC16IS7XX 1100 tristate "SC16IS7xx serial support" 1101 select SERIAL_CORE 1102 depends on (SPI_MASTER && !I2C) || I2C 1103 help 1104 This selects support for SC16IS7xx serial ports. 1105 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752, 1106 SC16IS760 and SC16IS762. Select supported buses using options below. 1107 1108config SERIAL_SC16IS7XX_I2C 1109 bool "SC16IS7xx for I2C interface" 1110 depends on SERIAL_SC16IS7XX 1111 depends on I2C 1112 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1113 select REGMAP_I2C if I2C 1114 default y 1115 help 1116 Enable SC16IS7xx driver on I2C bus, 1117 If required say y, and say n to i2c if not required, 1118 Enabled by default to support oldconfig. 1119 You must select at least one bus for the driver to be built. 1120 1121config SERIAL_SC16IS7XX_SPI 1122 bool "SC16IS7xx for spi interface" 1123 depends on SERIAL_SC16IS7XX 1124 depends on SPI_MASTER 1125 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1126 select REGMAP_SPI if SPI_MASTER 1127 help 1128 Enable SC16IS7xx driver on SPI bus, 1129 If required say y, and say n to spi if not required, 1130 This is additional support to existing driver. 1131 You must select at least one bus for the driver to be built. 1132 1133config SERIAL_TIMBERDALE 1134 tristate "Support for timberdale UART" 1135 select SERIAL_CORE 1136 depends on X86_32 || COMPILE_TEST 1137 help 1138 Add support for UART controller on timberdale. 1139 1140config SERIAL_BCM63XX 1141 tristate "Broadcom BCM63xx/BCM33xx UART support" 1142 select SERIAL_CORE 1143 depends on MIPS || ARM || COMPILE_TEST 1144 help 1145 This enables the driver for the onchip UART core found on 1146 the following chipsets: 1147 1148 BCM33xx (cable modem) 1149 BCM63xx/BCM63xxx (DSL) 1150 BCM68xx (PON) 1151 BCM7xxx (STB) - DOCSIS console 1152 1153config SERIAL_BCM63XX_CONSOLE 1154 bool "Console on BCM63xx serial port" 1155 depends on SERIAL_BCM63XX=y 1156 select SERIAL_CORE_CONSOLE 1157 select SERIAL_EARLYCON 1158 help 1159 If you have enabled the serial port on the BCM63xx CPU 1160 you can make it the console by answering Y to this option. 1161 1162config SERIAL_GRLIB_GAISLER_APBUART 1163 tristate "GRLIB APBUART serial support" 1164 depends on OF && SPARC 1165 select SERIAL_CORE 1166 help 1167 Add support for the GRLIB APBUART serial port. 1168 1169config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE 1170 bool "Console on GRLIB APBUART serial port" 1171 depends on SERIAL_GRLIB_GAISLER_APBUART=y 1172 select SERIAL_CORE_CONSOLE 1173 help 1174 Support for running a console on the GRLIB APBUART 1175 1176config SERIAL_ALTERA_JTAGUART 1177 tristate "Altera JTAG UART support" 1178 select SERIAL_CORE 1179 help 1180 This driver supports the Altera JTAG UART port. 1181 1182config SERIAL_ALTERA_JTAGUART_CONSOLE 1183 bool "Altera JTAG UART console support" 1184 depends on SERIAL_ALTERA_JTAGUART=y 1185 select SERIAL_CORE_CONSOLE 1186 select SERIAL_EARLYCON 1187 help 1188 Enable a Altera JTAG UART port to be the system console. 1189 1190config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS 1191 bool "Bypass output when no connection" 1192 depends on SERIAL_ALTERA_JTAGUART_CONSOLE 1193 select SERIAL_CORE_CONSOLE 1194 help 1195 Bypass console output and keep going even if there is no 1196 JTAG terminal connection with the host. 1197 1198config SERIAL_ALTERA_UART 1199 tristate "Altera UART support" 1200 select SERIAL_CORE 1201 help 1202 This driver supports the Altera softcore UART port. 1203 1204config SERIAL_ALTERA_UART_MAXPORTS 1205 int "Maximum number of Altera UART ports" 1206 depends on SERIAL_ALTERA_UART 1207 default 4 1208 help 1209 This setting lets you define the maximum number of the Altera 1210 UART ports. The usual default varies from board to board, and 1211 this setting is a way of catering for that. 1212 1213config SERIAL_ALTERA_UART_BAUDRATE 1214 int "Default baudrate for Altera UART ports" 1215 depends on SERIAL_ALTERA_UART 1216 default 115200 1217 help 1218 This setting lets you define what the default baudrate is for the 1219 Altera UART ports. The usual default varies from board to board, 1220 and this setting is a way of catering for that. 1221 1222config SERIAL_ALTERA_UART_CONSOLE 1223 bool "Altera UART console support" 1224 depends on SERIAL_ALTERA_UART=y 1225 select SERIAL_CORE_CONSOLE 1226 select SERIAL_EARLYCON 1227 help 1228 Enable a Altera UART port to be the system console. 1229 1230config SERIAL_IFX6X60 1231 tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)" 1232 depends on GPIOLIB || COMPILE_TEST 1233 depends on SPI && HAS_DMA 1234 help 1235 Support for the IFX6x60 modem devices on Intel MID platforms. 1236 1237config SERIAL_PCH_UART 1238 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART" 1239 depends on PCI && (X86_32 || MIPS || COMPILE_TEST) 1240 select SERIAL_CORE 1241 help 1242 This driver is for PCH(Platform controller Hub) UART of Intel EG20T 1243 which is an IOH(Input/Output Hub) for x86 embedded processor. 1244 Enabling PCH_DMA, this PCH UART works as DMA mode. 1245 1246 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1247 Output Hub), ML7213, ML7223 and ML7831. 1248 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 1249 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 1250 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1251 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1252 1253config SERIAL_PCH_UART_CONSOLE 1254 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH" 1255 depends on SERIAL_PCH_UART=y 1256 select SERIAL_CORE_CONSOLE 1257 help 1258 Say Y here if you wish to use the PCH UART as the system console 1259 (the system console is the device which receives all kernel messages and 1260 warnings and which allows logins in single user mode). 1261 1262config SERIAL_MXS_AUART 1263 tristate "MXS AUART support" 1264 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST 1265 select SERIAL_CORE 1266 select SERIAL_MCTRL_GPIO if GPIOLIB 1267 help 1268 This driver supports the MXS and Alphascale ASM9260 Application 1269 UART (AUART) port. 1270 1271config SERIAL_MXS_AUART_CONSOLE 1272 bool "MXS AUART console support" 1273 depends on SERIAL_MXS_AUART=y 1274 select SERIAL_CORE_CONSOLE 1275 help 1276 Enable a MXS AUART port to be the system console. 1277 1278config SERIAL_XILINX_PS_UART 1279 tristate "Cadence (Xilinx Zynq) UART support" 1280 depends on OF 1281 select SERIAL_CORE 1282 help 1283 This driver supports the Cadence UART. It is found e.g. in Xilinx 1284 Zynq. 1285 1286config SERIAL_XILINX_PS_UART_CONSOLE 1287 bool "Cadence UART console support" 1288 depends on SERIAL_XILINX_PS_UART=y 1289 select SERIAL_CORE_CONSOLE 1290 select SERIAL_EARLYCON 1291 help 1292 Enable a Cadence UART port to be the system console. 1293 1294config SERIAL_AR933X 1295 tristate "AR933X serial port support" 1296 depends on HAVE_CLK && ATH79 1297 select SERIAL_CORE 1298 select SERIAL_MCTRL_GPIO if GPIOLIB 1299 help 1300 If you have an Atheros AR933X SOC based board and want to use the 1301 built-in UART of the SoC, say Y to this option. 1302 1303 To compile this driver as a module, choose M here: the 1304 module will be called ar933x_uart. 1305 1306config SERIAL_AR933X_CONSOLE 1307 bool "Console on AR933X serial port" 1308 depends on SERIAL_AR933X=y 1309 select SERIAL_CORE_CONSOLE 1310 help 1311 Enable a built-in UART port of the AR933X to be the system console. 1312 1313config SERIAL_AR933X_NR_UARTS 1314 int "Maximum number of AR933X serial ports" 1315 depends on SERIAL_AR933X 1316 default "2" 1317 help 1318 Set this to the number of serial ports you want the driver 1319 to support. 1320 1321config SERIAL_EFM32_UART 1322 tristate "EFM32 UART/USART port" 1323 depends on ARM && (ARCH_EFM32 || COMPILE_TEST) 1324 select SERIAL_CORE 1325 help 1326 This driver support the USART and UART ports on 1327 Energy Micro's efm32 SoCs. 1328 1329config SERIAL_MPS2_UART_CONSOLE 1330 bool "MPS2 UART console support" 1331 depends on SERIAL_MPS2_UART 1332 select SERIAL_CORE_CONSOLE 1333 select SERIAL_EARLYCON 1334 1335config SERIAL_MPS2_UART 1336 bool "MPS2 UART port" 1337 depends on ARCH_MPS2 || COMPILE_TEST 1338 select SERIAL_CORE 1339 help 1340 This driver support the UART ports on ARM MPS2. 1341 1342config SERIAL_EFM32_UART_CONSOLE 1343 bool "EFM32 UART/USART console support" 1344 depends on SERIAL_EFM32_UART=y 1345 select SERIAL_CORE_CONSOLE 1346 1347config SERIAL_ARC 1348 tristate "ARC UART driver support" 1349 select SERIAL_CORE 1350 help 1351 Driver for on-chip UART for ARC(Synopsys) for the legacy 1352 FPGA Boards (ML50x/ARCAngel4) 1353 1354config SERIAL_ARC_CONSOLE 1355 bool "Console on ARC UART" 1356 depends on SERIAL_ARC=y 1357 select SERIAL_CORE_CONSOLE 1358 select SERIAL_EARLYCON 1359 help 1360 Enable system Console on ARC UART 1361 1362config SERIAL_ARC_NR_PORTS 1363 int "Number of ARC UART ports" 1364 depends on SERIAL_ARC 1365 range 1 3 1366 default "1" 1367 help 1368 Set this to the number of serial ports you want the driver 1369 to support. 1370 1371config SERIAL_RP2 1372 tristate "Comtrol RocketPort EXPRESS/INFINITY support" 1373 depends on PCI 1374 select SERIAL_CORE 1375 help 1376 This driver supports the Comtrol RocketPort EXPRESS and 1377 RocketPort INFINITY families of PCI/PCIe multiport serial adapters. 1378 These adapters use a "RocketPort 2" ASIC that is not compatible 1379 with the original RocketPort driver (CONFIG_ROCKETPORT). 1380 1381 To compile this driver as a module, choose M here: the 1382 module will be called rp2. 1383 1384 If you want to compile this driver into the kernel, say Y here. If 1385 you don't have a suitable RocketPort card installed, say N. 1386 1387config SERIAL_RP2_NR_UARTS 1388 int "Maximum number of RocketPort EXPRESS/INFINITY ports" 1389 depends on SERIAL_RP2 1390 default "32" 1391 help 1392 If multiple cards are present, the default limit of 32 ports may 1393 need to be increased. 1394 1395config SERIAL_FSL_LPUART 1396 tristate "Freescale lpuart serial port support" 1397 depends on HAS_DMA 1398 select SERIAL_CORE 1399 help 1400 Support for the on-chip lpuart on some Freescale SOCs. 1401 1402config SERIAL_FSL_LPUART_CONSOLE 1403 bool "Console on Freescale lpuart serial port" 1404 depends on SERIAL_FSL_LPUART=y 1405 select SERIAL_CORE_CONSOLE 1406 select SERIAL_EARLYCON 1407 help 1408 If you have enabled the lpuart serial port on the Freescale SoCs, 1409 you can make it the console by answering Y to this option. 1410 1411config SERIAL_FSL_LINFLEXUART 1412 tristate "Freescale LINFlexD UART serial port support" 1413 depends on PRINTK 1414 select SERIAL_CORE 1415 help 1416 Support for the on-chip LINFlexD UART on some Freescale SOCs. 1417 1418config SERIAL_FSL_LINFLEXUART_CONSOLE 1419 bool "Console on Freescale LINFlexD UART serial port" 1420 depends on SERIAL_FSL_LINFLEXUART=y 1421 select SERIAL_CORE_CONSOLE 1422 select SERIAL_EARLYCON 1423 help 1424 If you have enabled the LINFlexD UART serial port on the Freescale 1425 SoCs, you can make it the console by answering Y to this option. 1426 1427config SERIAL_CONEXANT_DIGICOLOR 1428 tristate "Conexant Digicolor CX92xxx USART serial port support" 1429 depends on OF 1430 select SERIAL_CORE 1431 help 1432 Support for the on-chip USART on Conexant Digicolor SoCs. 1433 1434config SERIAL_CONEXANT_DIGICOLOR_CONSOLE 1435 bool "Console on Conexant Digicolor serial port" 1436 depends on SERIAL_CONEXANT_DIGICOLOR=y 1437 select SERIAL_CORE_CONSOLE 1438 help 1439 If you have enabled the USART serial port on Conexant Digicolor 1440 SoCs, you can make it the console by answering Y to this option. 1441 1442config SERIAL_ST_ASC 1443 tristate "ST ASC serial port support" 1444 select SERIAL_CORE 1445 depends on ARM || COMPILE_TEST 1446 help 1447 This driver is for the on-chip Asychronous Serial Controller on 1448 STMicroelectronics STi SoCs. 1449 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality. 1450 It support all industry standard baud rates. 1451 1452 If unsure, say N. 1453 1454config SERIAL_ST_ASC_CONSOLE 1455 bool "Support for console on ST ASC" 1456 depends on SERIAL_ST_ASC=y 1457 select SERIAL_CORE_CONSOLE 1458 1459config SERIAL_MEN_Z135 1460 tristate "MEN 16z135 Support" 1461 select SERIAL_CORE 1462 depends on MCB 1463 help 1464 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core 1465 on a MCB carrier. 1466 1467 This driver can also be build as a module. If so, the module will be called 1468 men_z135_uart.ko 1469 1470config SERIAL_SPRD 1471 tristate "Support for Spreadtrum serial" 1472 select SERIAL_CORE 1473 depends on COMMON_CLK 1474 help 1475 This enables the driver for the Spreadtrum's serial. 1476 1477config SERIAL_SPRD_CONSOLE 1478 bool "Spreadtrum UART console support" 1479 depends on SERIAL_SPRD=y 1480 select SERIAL_CORE_CONSOLE 1481 select SERIAL_EARLYCON 1482 help 1483 Support for early debug console using Spreadtrum's serial. This enables 1484 the console before standard serial driver is probed. This is enabled 1485 with "earlycon" on the kernel command line. The console is 1486 enabled when early_param is processed. 1487 1488config SERIAL_STM32 1489 tristate "STMicroelectronics STM32 serial port support" 1490 select SERIAL_CORE 1491 depends on ARCH_STM32 || COMPILE_TEST 1492 select SERIAL_MCTRL_GPIO if GPIOLIB 1493 help 1494 This driver is for the on-chip Serial Controller on 1495 STMicroelectronics STM32 MCUs. 1496 USART supports Rx & Tx functionality. 1497 It support all industry standard baud rates. 1498 1499 If unsure, say N. 1500 1501config SERIAL_STM32_CONSOLE 1502 bool "Support for console on STM32" 1503 depends on SERIAL_STM32=y 1504 select SERIAL_CORE_CONSOLE 1505 1506config SERIAL_MVEBU_UART 1507 bool "Marvell EBU serial port support" 1508 depends on ARCH_MVEBU || COMPILE_TEST 1509 select SERIAL_CORE 1510 help 1511 This driver is for Marvell EBU SoC's UART. If you have a machine 1512 based on the Armada-3700 SoC and wish to use the on-board serial 1513 port, 1514 say 'Y' here. 1515 Otherwise, say 'N'. 1516 1517config SERIAL_MVEBU_CONSOLE 1518 bool "Console on Marvell EBU serial port" 1519 depends on SERIAL_MVEBU_UART 1520 select SERIAL_CORE_CONSOLE 1521 select SERIAL_EARLYCON 1522 default y 1523 help 1524 Say 'Y' here if you wish to use Armada-3700 UART as the system console. 1525 (the system console is the device which receives all kernel messages 1526 and warnings and which allows logins in single user mode) 1527 Otherwise, say 'N'. 1528 1529config SERIAL_OWL 1530 tristate "Actions Semi Owl serial port support" 1531 depends on ARCH_ACTIONS || COMPILE_TEST 1532 select SERIAL_CORE 1533 help 1534 This driver is for Actions Semiconductor S500/S900 SoC's UART. 1535 Say 'Y' here if you wish to use the on-board serial port. 1536 Otherwise, say 'N'. 1537 1538config SERIAL_OWL_CONSOLE 1539 bool "Console on Actions Semi Owl serial port" 1540 depends on SERIAL_OWL=y 1541 select SERIAL_CORE_CONSOLE 1542 select SERIAL_EARLYCON 1543 default y 1544 help 1545 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART 1546 as the system console. 1547 1548config SERIAL_RDA 1549 bool "RDA Micro serial port support" 1550 depends on ARCH_RDA || COMPILE_TEST 1551 select SERIAL_CORE 1552 help 1553 This driver is for RDA8810PL SoC's UART. 1554 Say 'Y' here if you wish to use the on-board serial port. 1555 Otherwise, say 'N'. 1556 1557config SERIAL_RDA_CONSOLE 1558 bool "Console on RDA Micro serial port" 1559 depends on SERIAL_RDA=y 1560 select SERIAL_CORE_CONSOLE 1561 select SERIAL_EARLYCON 1562 default y 1563 help 1564 Say 'Y' here if you wish to use the RDA8810PL UART as the system 1565 console. Only earlycon is implemented currently. 1566 1567config SERIAL_MILBEAUT_USIO 1568 tristate "Milbeaut USIO/UART serial port support" 1569 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF) 1570 default ARCH_MILBEAUT 1571 select SERIAL_CORE 1572 help 1573 This selects the USIO/UART IP found in Socionext Milbeaut SoCs. 1574 1575config SERIAL_MILBEAUT_USIO_PORTS 1576 int "Maximum number of CSIO/UART ports (1-8)" 1577 range 1 8 1578 depends on SERIAL_MILBEAUT_USIO 1579 default "4" 1580 1581config SERIAL_MILBEAUT_USIO_CONSOLE 1582 bool "Support for console on MILBEAUT USIO/UART serial port" 1583 depends on SERIAL_MILBEAUT_USIO=y 1584 default y 1585 select SERIAL_CORE_CONSOLE 1586 select SERIAL_EARLYCON 1587 help 1588 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut 1589 SoCs as the system console (the system console is the device which 1590 receives all kernel messages and warnings and which allows logins in 1591 single user mode). 1592 1593endmenu 1594 1595config SERIAL_MCTRL_GPIO 1596 tristate 1597