1# SPDX-License-Identifier: GPL-2.0 2# 3# Serial device configuration 4# 5 6menu "Serial drivers" 7 depends on HAS_IOMEM 8 9config SERIAL_EARLYCON 10 bool 11 depends on SERIAL_CORE 12 help 13 Support for early consoles with the earlycon parameter. This enables 14 the console before standard serial driver is probed. The console is 15 enabled when early_param is processed. 16 17source "drivers/tty/serial/8250/Kconfig" 18 19comment "Non-8250 serial port support" 20 21config SERIAL_AMBA_PL010 22 tristate "ARM AMBA PL010 serial port support" 23 depends on ARM_AMBA || COMPILE_TEST 24 select SERIAL_CORE 25 help 26 This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have 27 an Integrator/AP or Integrator/PP2 platform, or if you have a 28 Cirrus Logic EP93xx CPU, say Y or M here. 29 30 If unsure, say N. 31 32config SERIAL_AMBA_PL010_CONSOLE 33 bool "Support for console on AMBA serial port" 34 depends on SERIAL_AMBA_PL010=y 35 select SERIAL_CORE_CONSOLE 36 help 37 Say Y here if you wish to use an AMBA PrimeCell UART as the system 38 console (the system console is the device which receives all kernel 39 messages and warnings and which allows logins in single user mode). 40 41 Even if you say Y here, the currently visible framebuffer console 42 (/dev/tty0) will still be used as the system console by default, but 43 you can alter that using a kernel command line option such as 44 "console=ttyAM0". (Try "man bootparam" or see the documentation of 45 your boot loader (lilo or loadlin) about how to pass options to the 46 kernel at boot time.) 47 48config SERIAL_AMBA_PL011 49 tristate "ARM AMBA PL011 serial port support" 50 depends on ARM_AMBA 51 select SERIAL_CORE 52 help 53 This selects the ARM(R) AMBA(R) PrimeCell PL011 UART. If you have 54 an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M 55 here. 56 57 If unsure, say N. 58 59config SERIAL_AMBA_PL011_CONSOLE 60 bool "Support for console on AMBA serial port" 61 depends on SERIAL_AMBA_PL011=y 62 select SERIAL_CORE_CONSOLE 63 select SERIAL_EARLYCON 64 help 65 Say Y here if you wish to use an AMBA PrimeCell UART as the system 66 console (the system console is the device which receives all kernel 67 messages and warnings and which allows logins in single user mode). 68 69 Even if you say Y here, the currently visible framebuffer console 70 (/dev/tty0) will still be used as the system console by default, but 71 you can alter that using a kernel command line option such as 72 "console=ttyAMA0". (Try "man bootparam" or see the documentation of 73 your boot loader (lilo or loadlin) about how to pass options to the 74 kernel at boot time.) 75 76config SERIAL_EARLYCON_ARM_SEMIHOST 77 bool "Early console using ARM semihosting" 78 depends on ARM64 || ARM 79 select SERIAL_CORE 80 select SERIAL_CORE_CONSOLE 81 select SERIAL_EARLYCON 82 help 83 Support for early debug console using ARM semihosting. This enables 84 the console before standard serial driver is probed. This is enabled 85 with "earlycon=smh" on the kernel command line. The console is 86 enabled when early_param is processed. 87 88config SERIAL_EARLYCON_RISCV_SBI 89 bool "Early console using RISC-V SBI" 90 depends on RISCV_SBI_V01 91 select SERIAL_CORE 92 select SERIAL_CORE_CONSOLE 93 select SERIAL_EARLYCON 94 help 95 Support for early debug console using RISC-V SBI. This enables 96 the console before standard serial driver is probed. This is enabled 97 with "earlycon=sbi" on the kernel command line. The console is 98 enabled when early_param is processed. 99 100config SERIAL_SB1250_DUART 101 tristate "BCM1xxx on-chip DUART serial support" 102 depends on SIBYTE_SB1xxx_SOC=y 103 select SERIAL_CORE 104 default y 105 help 106 Support for the asynchronous serial interface (DUART) included in 107 the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that 108 the letter D in DUART stands for "dual", which is how the device 109 is implemented. Depending on the SOC configuration there may be 110 one or more DUARTs available of which all are handled. 111 112 If unsure, say Y. To compile this driver as a module, choose M here: 113 the module will be called sb1250-duart. 114 115config SERIAL_SB1250_DUART_CONSOLE 116 bool "Support for console on a BCM1xxx DUART serial port" 117 depends on SERIAL_SB1250_DUART=y 118 select SERIAL_CORE_CONSOLE 119 default y 120 help 121 If you say Y here, it will be possible to use a serial port as the 122 system console (the system console is the device which receives all 123 kernel messages and warnings and which allows logins in single user 124 mode). 125 126 If unsure, say Y. 127 128config SERIAL_ATMEL 129 bool "AT91 on-chip serial port support" 130 depends on ARCH_AT91 || COMPILE_TEST 131 select SERIAL_CORE 132 select SERIAL_MCTRL_GPIO if GPIOLIB 133 select MFD_AT91_USART 134 help 135 This enables the driver for the on-chip UARTs of the Atmel 136 AT91 processors. 137 138config SERIAL_ATMEL_CONSOLE 139 bool "Support for console on AT91 serial port" 140 depends on SERIAL_ATMEL=y 141 select SERIAL_CORE_CONSOLE 142 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 || COMPILE_TEST 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 || ARCH_APPLE || COMPILE_TEST 240 select SERIAL_CORE 241 help 242 Support for the on-chip UARTs on the Samsung 243 S3C24xx/S3C64xx/S5Pv210/Exynos and Apple M1 SoCs, providing 244 /dev/ttySAC0, 1 and 2 (note, some machines may not provide all of 245 these ports, depending on how the serial port pins are configured. 246 Choose Y/M here only if you build for such SoC. 247 248config SERIAL_SAMSUNG_UARTS_4 249 bool 250 depends on SERIAL_SAMSUNG 251 default y if !(CPU_S3C2410 || CPU_S3C2412 || CPU_S3C2440 || CPU_S3C2442) 252 help 253 Internal node for the common case of 4 Samsung compatible UARTs 254 255config SERIAL_SAMSUNG_UARTS 256 int 257 depends on SERIAL_SAMSUNG 258 default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416 259 default 3 260 help 261 Select the number of available UART ports for the Samsung S3C 262 serial driver 263 264config SERIAL_SAMSUNG_CONSOLE 265 bool "Support for console on Samsung SoC serial port" 266 depends on SERIAL_SAMSUNG 267 select SERIAL_CORE_CONSOLE 268 select SERIAL_EARLYCON 269 help 270 Allow selection of the S3C24XX on-board serial ports for use as 271 an virtual console. 272 273 Even if you say Y here, the currently visible virtual console 274 (/dev/tty0) will still be used as the system console by default, but 275 you can alter that using a kernel command line option such as 276 "console=ttySACx". (Try "man bootparam" or see the documentation of 277 your boot loader about how to pass options to the kernel at 278 boot time.) 279 280config SERIAL_TEGRA 281 tristate "NVIDIA Tegra20/30 SoC serial controller" 282 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 283 select SERIAL_CORE 284 help 285 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs 286 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not 287 provide all of these ports, depending on how the serial port 288 are enabled). This driver uses the APB DMA to achieve higher baudrate 289 and better performance. 290 291config SERIAL_TEGRA_TCU 292 tristate "NVIDIA Tegra Combined UART" 293 depends on MAILBOX 294 depends on (ARCH_TEGRA && TEGRA_HSP_MBOX) || COMPILE_TEST 295 select SERIAL_CORE 296 help 297 Support for the mailbox-based TCU (Tegra Combined UART) serial port. 298 TCU is a virtual serial port that allows multiplexing multiple data 299 streams into a single hardware serial port. 300 301config SERIAL_TEGRA_TCU_CONSOLE 302 bool "Support for console on a Tegra TCU serial port" 303 depends on SERIAL_TEGRA_TCU=y 304 select SERIAL_CORE_CONSOLE 305 default y 306 help 307 If you say Y here, it will be possible to use a the Tegra TCU as the 308 system console (the system console is the device which receives all 309 kernel messages and warnings and which allows logins in single user 310 mode). 311 312 If unsure, say Y. 313 314config SERIAL_MAX3100 315 tristate "MAX3100 support" 316 depends on SPI 317 select SERIAL_CORE 318 help 319 MAX3100 chip support 320 321config SERIAL_MAX310X 322 tristate "MAX310X support" 323 depends on SPI_MASTER 324 select SERIAL_CORE 325 select REGMAP_SPI if SPI_MASTER 326 help 327 This selects support for an advanced UART from Maxim (Dallas). 328 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830. 329 Each IC contains 128 words each of receive and transmit FIFO 330 that can be controlled through I2C or high-speed SPI. 331 332 Say Y here if you want to support this ICs. 333 334config SERIAL_DZ 335 bool "DECstation DZ serial driver" 336 depends on MACH_DECSTATION && 32BIT 337 select SERIAL_CORE 338 default y 339 help 340 DZ11-family serial controllers for DECstations and VAXstations, 341 including the DC7085, M7814, and M7819. 342 343config SERIAL_DZ_CONSOLE 344 bool "Support console on DECstation DZ serial driver" 345 depends on SERIAL_DZ=y 346 select SERIAL_CORE_CONSOLE 347 default y 348 help 349 If you say Y here, it will be possible to use a serial port as the 350 system console (the system console is the device which receives all 351 kernel messages and warnings and which allows logins in single user 352 mode). 353 354 Note that the firmware uses ttyS3 as the serial console on 355 DECstations that use this driver. 356 357 If unsure, say Y. 358 359config SERIAL_ZS 360 tristate "DECstation Z85C30 serial support" 361 depends on MACH_DECSTATION 362 select SERIAL_CORE 363 default y 364 help 365 Support for the Zilog 85C350 serial communications controller used 366 for serial ports in newer DECstation systems. These include the 367 DECsystem 5900 and all models of the DECstation and DECsystem 5000 368 systems except from model 200. 369 370 If unsure, say Y. To compile this driver as a module, choose M here: 371 the module will be called zs. 372 373config SERIAL_ZS_CONSOLE 374 bool "Support for console on a DECstation Z85C30 serial port" 375 depends on SERIAL_ZS=y 376 select SERIAL_CORE_CONSOLE 377 default y 378 help 379 If you say Y here, it will be possible to use a serial port as the 380 system console (the system console is the device which receives all 381 kernel messages and warnings and which allows logins in single user 382 mode). 383 384 Note that the firmware uses ttyS1 as the serial console on the 385 Maxine and ttyS3 on the others using this driver. 386 387 If unsure, say Y. 388 389config SERIAL_21285 390 tristate "DC21285 serial port support" 391 depends on FOOTBRIDGE 392 select SERIAL_CORE 393 help 394 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/ 395 PCI bridge you can enable its onboard serial port by enabling this 396 option. 397 398config SERIAL_21285_CONSOLE 399 bool "Console on DC21285 serial port" 400 depends on SERIAL_21285=y 401 select SERIAL_CORE_CONSOLE 402 help 403 If you have enabled the serial port on the 21285 footbridge you can 404 make it the console by answering Y to this option. 405 406 Even if you say Y here, the currently visible virtual console 407 (/dev/tty0) will still be used as the system console by default, but 408 you can alter that using a kernel command line option such as 409 "console=ttyFB". (Try "man bootparam" or see the documentation of 410 your boot loader (lilo or loadlin) about how to pass options to the 411 kernel at boot time.) 412 413config SERIAL_PXA 414 bool "PXA serial port support (DEPRECATED)" 415 depends on ARCH_PXA || ARCH_MMP 416 select SERIAL_CORE 417 select SERIAL_8250_PXA if SERIAL_8250=y 418 select SERIAL_PXA_NON8250 if !SERIAL_8250=y 419 help 420 If you have a machine based on an Intel XScale PXA2xx CPU you 421 can enable its onboard serial ports by enabling this option. 422 423 Unless you have a specific need, you should use SERIAL_8250_PXA 424 instead of this. 425 426config SERIAL_PXA_NON8250 427 bool 428 depends on !SERIAL_8250 429 430config SERIAL_PXA_CONSOLE 431 bool "Console on PXA serial port (DEPRECATED)" 432 depends on SERIAL_PXA 433 select SERIAL_CORE_CONSOLE 434 select SERIAL_8250_CONSOLE if SERIAL_8250=y 435 help 436 If you have enabled the serial port on the Intel XScale PXA 437 CPU you can make it the console by answering Y to this option. 438 439 Even if you say Y here, the currently visible virtual console 440 (/dev/tty0) will still be used as the system console by default, but 441 you can alter that using a kernel command line option such as 442 "console=ttySA0". (Try "man bootparam" or see the documentation of 443 your boot loader (lilo or loadlin) about how to pass options to the 444 kernel at boot time.) 445 446 Unless you have a specific need, you should use SERIAL_8250_PXA 447 and SERIAL_8250_CONSOLE instead of this. 448 449config SERIAL_SA1100 450 bool "SA1100 serial port support" 451 depends on ARCH_SA1100 452 select SERIAL_CORE 453 select SERIAL_MCTRL_GPIO if GPIOLIB 454 help 455 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you 456 can enable its onboard serial port by enabling this option. 457 Please read <file:Documentation/arm/sa1100/serial_uart.rst> for further 458 info. 459 460config SERIAL_SA1100_CONSOLE 461 bool "Console on SA1100 serial port" 462 depends on SERIAL_SA1100 463 select SERIAL_CORE_CONSOLE 464 help 465 If you have enabled the serial port on the SA1100/SA1110 StrongARM 466 CPU you can make it the console by answering Y to this option. 467 468 Even if you say Y here, the currently visible virtual console 469 (/dev/tty0) will still be used as the system console by default, but 470 you can alter that using a kernel command line option such as 471 "console=ttySA0". (Try "man bootparam" or see the documentation of 472 your boot loader (lilo or loadlin) about how to pass options to the 473 kernel at boot time.) 474 475config SERIAL_IMX 476 tristate "IMX serial port support" 477 depends on ARCH_MXC || COMPILE_TEST 478 select SERIAL_CORE 479 select RATIONAL 480 select SERIAL_MCTRL_GPIO if GPIOLIB 481 help 482 If you have a machine based on a Motorola IMX CPU you 483 can enable its onboard serial port by enabling this option. 484 485config SERIAL_IMX_CONSOLE 486 tristate "Console on IMX serial port" 487 depends on SERIAL_IMX 488 select SERIAL_CORE_CONSOLE 489 help 490 If you have enabled the serial port on the Freescale IMX 491 CPU you can make it the console by answering Y/M to this option. 492 493 Even if you say Y/M here, the currently visible virtual console 494 (/dev/tty0) will still be used as the system console by default, but 495 you can alter that using a kernel command line option such as 496 "console=ttymxc0". (Try "man bootparam" or see the documentation of 497 your bootloader about how to pass options to the kernel at boot time.) 498 499config SERIAL_IMX_EARLYCON 500 bool "Earlycon on IMX serial port" 501 depends on ARCH_MXC || COMPILE_TEST 502 depends on OF 503 select SERIAL_CORE 504 select SERIAL_EARLYCON 505 select SERIAL_CORE_CONSOLE 506 default y if SERIAL_IMX_CONSOLE 507 help 508 If you have enabled the earlycon on the Freescale IMX 509 CPU you can make it the earlycon by answering Y to this option. 510 511config SERIAL_UARTLITE 512 tristate "Xilinx uartlite serial port support" 513 depends on HAS_IOMEM 514 select SERIAL_CORE 515 help 516 Say Y here if you want to use the Xilinx uartlite serial controller. 517 518 To compile this driver as a module, choose M here: the 519 module will be called uartlite. 520 521config SERIAL_UARTLITE_CONSOLE 522 bool "Support for console on Xilinx uartlite serial port" 523 depends on SERIAL_UARTLITE=y 524 select SERIAL_CORE_CONSOLE 525 select SERIAL_EARLYCON 526 help 527 Say Y here if you wish to use a Xilinx uartlite as the system 528 console (the system console is the device which receives all kernel 529 messages and warnings and which allows logins in single user mode). 530 531config SERIAL_UARTLITE_NR_UARTS 532 int "Maximum number of uartlite serial ports" 533 depends on SERIAL_UARTLITE 534 range 1 256 535 default 1 536 help 537 Set this to the number of uartlites in your system, or the number 538 you think you might implement. 539 540config SERIAL_SUNCORE 541 bool 542 depends on SPARC 543 select SERIAL_CORE 544 select SERIAL_CORE_CONSOLE 545 default y 546 547config SERIAL_SUNZILOG 548 tristate "Sun Zilog8530 serial support" 549 depends on SPARC 550 help 551 This driver supports the Zilog8530 serial ports found on many Sparc 552 systems. Say Y or M if you want to be able to these serial ports. 553 554config SERIAL_SUNZILOG_CONSOLE 555 bool "Console on Sun Zilog8530 serial port" 556 depends on SERIAL_SUNZILOG=y 557 help 558 If you would like to be able to use the Zilog8530 serial port 559 on your Sparc system as the console, you can do so by answering 560 Y to this option. 561 562config SERIAL_SUNSU 563 tristate "Sun SU serial support" 564 depends on SPARC && PCI 565 help 566 This driver supports the 8250 serial ports that run the keyboard and 567 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able 568 to these serial ports. 569 570config SERIAL_SUNSU_CONSOLE 571 bool "Console on Sun SU serial port" 572 depends on SERIAL_SUNSU=y 573 help 574 If you would like to be able to use the SU serial port 575 on your Sparc system as the console, you can do so by answering 576 Y to this option. 577 578config SERIAL_MUX 579 tristate "Serial MUX support" 580 depends on GSC 581 select SERIAL_CORE 582 default y 583 help 584 Saying Y here will enable the hardware MUX serial driver for 585 the Nova, K class systems and D class with a 'remote control card'. 586 The hardware MUX is not 8250/16550 compatible therefore the 587 /dev/ttyB0 device is shared between the Serial MUX and the PDC 588 software console. The following steps need to be completed to use 589 the Serial MUX: 590 591 1. create the device entry (mknod /dev/ttyB0 c 11 0) 592 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 593 3. Add device ttyB0 to /etc/securetty (if you want to log on as 594 root on this console.) 595 4. Change the kernel command console parameter to: console=ttyB0 596 597config SERIAL_MUX_CONSOLE 598 bool "Support for console on serial MUX" 599 depends on SERIAL_MUX=y 600 select SERIAL_CORE_CONSOLE 601 default y 602 603config PDC_CONSOLE 604 bool "PDC software console support" 605 depends on PARISC && !SERIAL_MUX && VT 606 help 607 Saying Y here will enable the software based PDC console to be 608 used as the system console. This is useful for machines in 609 which the hardware based console has not been written yet. The 610 following steps must be completed to use the PDC console: 611 612 1. create the device entry (mknod /dev/ttyB0 c 11 0) 613 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 614 3. Add device ttyB0 to /etc/securetty (if you want to log on as 615 root on this console.) 616 4. Change the kernel command console parameter to: console=ttyB0 617 618config SERIAL_SUNSAB 619 tristate "Sun Siemens SAB82532 serial support" 620 depends on SPARC && PCI 621 help 622 This driver supports the Siemens SAB82532 DUSCC serial ports on newer 623 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these 624 serial ports. 625 626config SERIAL_SUNSAB_CONSOLE 627 bool "Console on Sun Siemens SAB82532 serial port" 628 depends on SERIAL_SUNSAB=y 629 help 630 If you would like to be able to use the SAB82532 serial port 631 on your Sparc system as the console, you can do so by answering 632 Y to this option. 633 634config SERIAL_SUNHV 635 bool "Sun4v Hypervisor Console support" 636 depends on SPARC64 637 help 638 This driver supports the console device found on SUN4V Sparc 639 systems. Say Y if you want to be able to use this device. 640 641config SERIAL_IP22_ZILOG 642 tristate "SGI Zilog8530 serial support" 643 depends on SGI_HAS_ZILOG 644 select SERIAL_CORE 645 help 646 This driver supports the Zilog8530 serial ports found on SGI 647 systems. Say Y or M if you want to be able to these serial ports. 648 649config SERIAL_IP22_ZILOG_CONSOLE 650 bool "Console on SGI Zilog8530 serial port" 651 depends on SERIAL_IP22_ZILOG=y 652 select SERIAL_CORE_CONSOLE 653 654config SERIAL_SH_SCI 655 tristate "SuperH SCI(F) serial port support" 656 depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST 657 select SERIAL_CORE 658 select SERIAL_MCTRL_GPIO if GPIOLIB 659 660config SERIAL_SH_SCI_NR_UARTS 661 int "Maximum number of SCI(F) serial ports" if EXPERT 662 range 1 64 if 64BIT 663 range 1 32 if !64BIT 664 depends on SERIAL_SH_SCI 665 default "3" if H8300 666 default "10" if SUPERH 667 default "18" if ARCH_RENESAS 668 default "2" 669 670config SERIAL_SH_SCI_CONSOLE 671 bool "Support for console on SuperH SCI(F)" if EXPERT 672 depends on SERIAL_SH_SCI=y 673 select SERIAL_CORE_CONSOLE 674 default y 675 676config SERIAL_SH_SCI_EARLYCON 677 bool "Support for early console on SuperH SCI(F)" if EXPERT 678 depends on SERIAL_SH_SCI=y 679 select SERIAL_CORE_CONSOLE 680 select SERIAL_EARLYCON 681 default ARCH_RENESAS || H8300 682 683config SERIAL_SH_SCI_DMA 684 bool "DMA support" if EXPERT 685 depends on SERIAL_SH_SCI && DMA_ENGINE 686 default ARCH_RENESAS 687 688config SERIAL_HS_LPC32XX 689 tristate "LPC32XX high speed serial port support" 690 depends on ARCH_LPC32XX || COMPILE_TEST 691 depends on OF 692 select SERIAL_CORE 693 help 694 Support for the LPC32XX high speed serial ports (up to 900kbps). 695 Those are UARTs completely different from the Standard UARTs on the 696 LPC32XX SoC. 697 Choose M or Y here to build this driver. 698 699config SERIAL_HS_LPC32XX_CONSOLE 700 bool "Enable LPC32XX high speed UART serial console" 701 depends on SERIAL_HS_LPC32XX=y 702 select SERIAL_CORE_CONSOLE 703 help 704 If you would like to be able to use one of the high speed serial 705 ports on the LPC32XX as the console, you can do so by answering 706 Y to this option. 707 708config SERIAL_CORE 709 tristate 710 711config SERIAL_CORE_CONSOLE 712 bool 713 714config CONSOLE_POLL 715 bool 716 717config SERIAL_MCF 718 bool "Coldfire serial support" 719 depends on COLDFIRE 720 select SERIAL_CORE 721 help 722 This serial driver supports the Freescale Coldfire serial ports. 723 724config SERIAL_MCF_BAUDRATE 725 int "Default baudrate for Coldfire serial ports" 726 depends on SERIAL_MCF 727 default 19200 728 help 729 This setting lets you define what the default baudrate is for the 730 ColdFire serial ports. The usual default varies from board to board, 731 and this setting is a way of catering for that. 732 733config SERIAL_MCF_CONSOLE 734 bool "Coldfire serial console support" 735 depends on SERIAL_MCF 736 select SERIAL_CORE_CONSOLE 737 help 738 Enable a ColdFire internal serial port to be the system console. 739 740config SERIAL_PMACZILOG 741 tristate "Mac or PowerMac z85c30 ESCC support" 742 depends on (M68K && MAC) || PPC_PMAC 743 select SERIAL_CORE 744 help 745 This driver supports the Zilog z85C30 serial ports found on 746 (Power)Mac machines. 747 Say Y or M if you want to be able to these serial ports. 748 749config SERIAL_PMACZILOG_TTYS 750 bool "Use ttySn device nodes for Zilog z85c30" 751 depends on SERIAL_PMACZILOG 752 help 753 The pmac_zilog driver for the z85C30 chip on many powermacs 754 historically used the device numbers for /dev/ttySn. The 755 8250 serial port driver also uses these numbers, which means 756 the two drivers being unable to coexist; you could not use 757 both z85C30 and 8250 type ports at the same time. 758 759 If this option is not selected, the pmac_zilog driver will 760 use the device numbers allocated for /dev/ttyPZn. This allows 761 the pmac_zilog and 8250 drivers to co-exist, but may cause 762 existing userspace setups to break. Programs that need to 763 access the built-in serial ports on powermacs will need to 764 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn. 765 766 If you enable this option, any z85c30 ports in the system will 767 be registered as ttyS0 onwards as in the past, and you will be 768 unable to use the 8250 module for PCMCIA or other 16C550-style 769 UARTs. 770 771 Say N unless you need the z85c30 ports on your (Power)Mac 772 to appear as /dev/ttySn. 773 774config SERIAL_PMACZILOG_CONSOLE 775 bool "Console on Mac or PowerMac z85c30 serial port" 776 depends on SERIAL_PMACZILOG=y 777 select SERIAL_CORE_CONSOLE 778 help 779 If you would like to be able to use the z85c30 serial port 780 on your (Power)Mac as the console, you can do so by answering 781 Y to this option. 782 783config SERIAL_CPM 784 tristate "CPM SCC/SMC serial port support" 785 depends on CPM2 || CPM1 786 select SERIAL_CORE 787 help 788 This driver supports the SCC and SMC serial ports on Motorola 789 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx) 790 791config SERIAL_CPM_CONSOLE 792 bool "Support for console on CPM SCC/SMC serial port" 793 depends on SERIAL_CPM=y 794 select SERIAL_CORE_CONSOLE 795 help 796 Say Y here if you wish to use a SCC or SMC CPM UART as the system 797 console (the system console is the device which receives all kernel 798 messages and warnings and which allows logins in single user mode). 799 800 Even if you say Y here, the currently visible framebuffer console 801 (/dev/tty0) will still be used as the system console by default, but 802 you can alter that using a kernel command line option such as 803 "console=ttyCPM0". (Try "man bootparam" or see the documentation of 804 your boot loader (lilo or loadlin) about how to pass options to the 805 kernel at boot time.) 806 807config SERIAL_PIC32 808 tristate "Microchip PIC32 serial support" 809 depends on MACH_PIC32 810 select SERIAL_CORE 811 help 812 If you have a PIC32, this driver supports the serial ports. 813 814 Say Y or M to use PIC32 serial ports, otherwise say N. Note that 815 to use a serial port as a console, this must be included in kernel and 816 not as a module. 817 818config SERIAL_PIC32_CONSOLE 819 bool "PIC32 serial console support" 820 depends on SERIAL_PIC32 821 select SERIAL_CORE_CONSOLE 822 help 823 If you have a PIC32, this driver supports the putting a console on one 824 of the serial ports. 825 826 Say Y to use the PIC32 console, otherwise say N. 827 828config SERIAL_MPC52xx 829 tristate "Freescale MPC52xx/MPC512x family PSC serial support" 830 depends on PPC_MPC52xx || PPC_MPC512x 831 select SERIAL_CORE 832 help 833 This driver supports MPC52xx and MPC512x PSC serial ports. If you would 834 like to use them, you must answer Y or M to this option. Note that 835 for use as console, it must be included in kernel and not as a 836 module. 837 838config SERIAL_MPC52xx_CONSOLE 839 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port" 840 depends on SERIAL_MPC52xx=y 841 select SERIAL_CORE_CONSOLE 842 help 843 Select this options if you'd like to use one of the PSC serial port 844 of the Freescale MPC52xx family as a console. 845 846config SERIAL_MPC52xx_CONSOLE_BAUD 847 int "Freescale MPC52xx/MPC512x family PSC serial port baud" 848 depends on SERIAL_MPC52xx_CONSOLE=y 849 default "9600" 850 help 851 Select the MPC52xx console baud rate. 852 This value is only used if the bootloader doesn't pass in the 853 console baudrate 854 855config SERIAL_ICOM 856 tristate "IBM Multiport Serial Adapter" 857 depends on PCI 858 depends on PPC_PSERIES || COMPILE_TEST 859 select SERIAL_CORE 860 select FW_LOADER 861 help 862 This driver is for a family of multiport serial adapters 863 including 2 port RVX, 2 port internal modem, 4 port internal 864 modem and a split 1 port RVX and 1 port internal modem. 865 866 This driver can also be built as a module. If so, the module 867 will be called icom. 868 869config SERIAL_TXX9 870 bool "TMPTX39XX/49XX SIO support" 871 depends on HAS_TXX9_SERIAL 872 select SERIAL_CORE 873 default y 874 875config HAS_TXX9_SERIAL 876 bool 877 878config SERIAL_TXX9_NR_UARTS 879 int "Maximum number of TMPTX39XX/49XX SIO ports" 880 depends on SERIAL_TXX9 881 default "6" 882 883config SERIAL_TXX9_CONSOLE 884 bool "TMPTX39XX/49XX SIO Console support" 885 depends on SERIAL_TXX9=y 886 select SERIAL_CORE_CONSOLE 887 888config SERIAL_TXX9_STDSERIAL 889 bool "TX39XX/49XX SIO act as standard serial" 890 depends on !SERIAL_8250 && SERIAL_TXX9 891 892config SERIAL_VR41XX 893 tristate "NEC VR4100 series Serial Interface Unit support" 894 depends on CPU_VR41XX 895 select SERIAL_CORE 896 help 897 If you have a NEC VR4100 series processor and you want to use 898 Serial Interface Unit(SIU) or Debug Serial Interface Unit(DSIU) 899 (not include VR4111/VR4121 DSIU), say Y. Otherwise, say N. 900 901config SERIAL_VR41XX_CONSOLE 902 bool "Enable NEC VR4100 series Serial Interface Unit console" 903 depends on SERIAL_VR41XX=y 904 select SERIAL_CORE_CONSOLE 905 help 906 If you have a NEC VR4100 series processor and you want to use 907 a console on a serial port, say Y. Otherwise, say N. 908 909config SERIAL_JSM 910 tristate "Digi International NEO and Classic PCI Support" 911 depends on PCI 912 select SERIAL_CORE 913 help 914 This is a driver for Digi International's Neo and Classic series 915 of cards which provide multiple serial ports. You would need 916 something like this to connect more than two modems to your Linux 917 box, for instance in order to become a dial-in server. This driver 918 supports PCI boards only. 919 920 If you have a card like this, say Y here, otherwise say N. 921 922 To compile this driver as a module, choose M here: the 923 module will be called jsm. 924 925config SERIAL_MSM 926 tristate "MSM on-chip serial port support" 927 depends on ARCH_QCOM || COMPILE_TEST 928 select SERIAL_CORE 929 930config SERIAL_MSM_CONSOLE 931 bool "MSM serial console support" 932 depends on SERIAL_MSM=y 933 select SERIAL_CORE_CONSOLE 934 select SERIAL_EARLYCON 935 936config SERIAL_QCOM_GENI 937 tristate "QCOM on-chip GENI based serial port support" 938 depends on ARCH_QCOM || COMPILE_TEST 939 depends on QCOM_GENI_SE 940 select SERIAL_CORE 941 942config SERIAL_QCOM_GENI_CONSOLE 943 bool "QCOM GENI Serial Console support" 944 depends on SERIAL_QCOM_GENI 945 select SERIAL_CORE_CONSOLE 946 select SERIAL_EARLYCON 947 help 948 Serial console driver for Qualcomm Technologies Inc's GENI based 949 QUP hardware. 950 951config SERIAL_VT8500 952 bool "VIA VT8500 on-chip serial port support" 953 depends on ARCH_VT8500 || COMPILE_TEST 954 select SERIAL_CORE 955 956config SERIAL_VT8500_CONSOLE 957 bool "VIA VT8500 serial console support" 958 depends on SERIAL_VT8500=y 959 select SERIAL_CORE_CONSOLE 960 961config SERIAL_OMAP 962 tristate "OMAP serial port support" 963 depends on (ARCH_OMAP2PLUS && !SERIAL_8250_OMAP) || COMPILE_TEST 964 select SERIAL_CORE 965 help 966 If you have a machine based on an Texas Instruments OMAP CPU you 967 can enable its onboard serial ports by enabling this option. 968 969 By enabling this option you take advantage of dma feature available 970 with the omap-serial driver. DMA support can be enabled from platform 971 data. 972 973config SERIAL_OMAP_CONSOLE 974 bool "Console on OMAP serial port" 975 depends on SERIAL_OMAP=y 976 select SERIAL_CORE_CONSOLE 977 help 978 Select this option if you would like to use omap serial port as 979 console. 980 981 Even if you say Y here, the currently visible virtual console 982 (/dev/tty0) will still be used as the system console by default, but 983 you can alter that using a kernel command line option such as 984 "console=ttyOx". (Try "man bootparam" or see the documentation of 985 your boot loader about how to pass options to the kernel at 986 boot time.) 987 988config SERIAL_SIFIVE 989 tristate "SiFive UART support" 990 depends on OF 991 select SERIAL_CORE 992 help 993 Select this option if you are building a kernel for a device that 994 contains a SiFive UART IP block. This type of UART is present on 995 SiFive FU540 SoCs, among others. 996 997config SERIAL_SIFIVE_CONSOLE 998 bool "Console on SiFive UART" 999 depends on SERIAL_SIFIVE=y 1000 select SERIAL_CORE_CONSOLE 1001 select SERIAL_EARLYCON 1002 help 1003 Select this option if you would like to use a SiFive UART as the 1004 system console. 1005 1006 Even if you say Y here, the currently visible virtual console 1007 (/dev/tty0) will still be used as the system console by default, but 1008 you can alter that using a kernel command line option such as 1009 "console=ttySIFx". (Try "man bootparam" or see the documentation of 1010 your boot loader about how to pass options to the kernel at 1011 boot time.) 1012 1013config SERIAL_LANTIQ 1014 tristate "Lantiq serial driver" 1015 depends on (LANTIQ || X86) || COMPILE_TEST 1016 select SERIAL_CORE 1017 help 1018 Support for UART on Lantiq and Intel SoCs. 1019 To compile this driver as a module, select M here. The 1020 module will be called lantiq. 1021 1022config SERIAL_LANTIQ_CONSOLE 1023 bool "Console on Lantiq UART" 1024 depends on SERIAL_LANTIQ=y 1025 select SERIAL_CORE_CONSOLE 1026 select SERIAL_EARLYCON 1027 help 1028 Select this option if you would like to use a Lantiq UART as the 1029 system console. 1030 1031config SERIAL_QE 1032 tristate "Freescale QUICC Engine serial port support" 1033 depends on QUICC_ENGINE 1034 select SERIAL_CORE 1035 select FW_LOADER 1036 help 1037 This driver supports the QE serial ports on Freescale embedded 1038 PowerPC that contain a QUICC Engine. 1039 1040config SERIAL_SCCNXP 1041 tristate "SCCNXP serial port support" 1042 select SERIAL_CORE 1043 help 1044 This selects support for an advanced UART from NXP (Philips). 1045 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92, 1046 SC28L202, SCC68681 and SCC68692. 1047 1048config SERIAL_SCCNXP_CONSOLE 1049 bool "Console on SCCNXP serial port" 1050 depends on SERIAL_SCCNXP=y 1051 select SERIAL_CORE_CONSOLE 1052 help 1053 Support for console on SCCNXP serial ports. 1054 1055config SERIAL_SC16IS7XX_CORE 1056 tristate 1057 1058config SERIAL_SC16IS7XX 1059 tristate "SC16IS7xx serial support" 1060 select SERIAL_CORE 1061 depends on (SPI_MASTER && !I2C) || I2C 1062 help 1063 This selects support for SC16IS7xx serial ports. 1064 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752, 1065 SC16IS760 and SC16IS762. Select supported buses using options below. 1066 1067config SERIAL_SC16IS7XX_I2C 1068 bool "SC16IS7xx for I2C interface" 1069 depends on SERIAL_SC16IS7XX 1070 depends on I2C 1071 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1072 select REGMAP_I2C if I2C 1073 default y 1074 help 1075 Enable SC16IS7xx driver on I2C bus, 1076 If required say y, and say n to i2c if not required, 1077 Enabled by default to support oldconfig. 1078 You must select at least one bus for the driver to be built. 1079 1080config SERIAL_SC16IS7XX_SPI 1081 bool "SC16IS7xx for spi interface" 1082 depends on SERIAL_SC16IS7XX 1083 depends on SPI_MASTER 1084 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1085 select REGMAP_SPI if SPI_MASTER 1086 help 1087 Enable SC16IS7xx driver on SPI bus, 1088 If required say y, and say n to spi if not required, 1089 This is additional support to existing driver. 1090 You must select at least one bus for the driver to be built. 1091 1092config SERIAL_TIMBERDALE 1093 tristate "Support for timberdale UART" 1094 select SERIAL_CORE 1095 depends on X86_32 || COMPILE_TEST 1096 help 1097 Add support for UART controller on timberdale. 1098 1099config SERIAL_BCM63XX 1100 tristate "Broadcom BCM63xx/BCM33xx UART support" 1101 select SERIAL_CORE 1102 depends on COMMON_CLK 1103 help 1104 This enables the driver for the onchip UART core found on 1105 the following chipsets: 1106 1107 BCM33xx (cable modem) 1108 BCM63xx/BCM63xxx (DSL) 1109 BCM68xx (PON) 1110 BCM7xxx (STB) - DOCSIS console 1111 1112config SERIAL_BCM63XX_CONSOLE 1113 bool "Console on BCM63xx serial port" 1114 depends on SERIAL_BCM63XX=y 1115 select SERIAL_CORE_CONSOLE 1116 select SERIAL_EARLYCON 1117 help 1118 If you have enabled the serial port on the BCM63xx CPU 1119 you can make it the console by answering Y to this option. 1120 1121config SERIAL_GRLIB_GAISLER_APBUART 1122 tristate "GRLIB APBUART serial support" 1123 depends on OF && SPARC 1124 select SERIAL_CORE 1125 help 1126 Add support for the GRLIB APBUART serial port. 1127 1128config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE 1129 bool "Console on GRLIB APBUART serial port" 1130 depends on SERIAL_GRLIB_GAISLER_APBUART=y 1131 select SERIAL_CORE_CONSOLE 1132 help 1133 Support for running a console on the GRLIB APBUART 1134 1135config SERIAL_ALTERA_JTAGUART 1136 tristate "Altera JTAG UART support" 1137 select SERIAL_CORE 1138 help 1139 This driver supports the Altera JTAG UART port. 1140 1141config SERIAL_ALTERA_JTAGUART_CONSOLE 1142 bool "Altera JTAG UART console support" 1143 depends on SERIAL_ALTERA_JTAGUART=y 1144 select SERIAL_CORE_CONSOLE 1145 select SERIAL_EARLYCON 1146 help 1147 Enable a Altera JTAG UART port to be the system console. 1148 1149config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS 1150 bool "Bypass output when no connection" 1151 depends on SERIAL_ALTERA_JTAGUART_CONSOLE 1152 select SERIAL_CORE_CONSOLE 1153 help 1154 Bypass console output and keep going even if there is no 1155 JTAG terminal connection with the host. 1156 1157config SERIAL_ALTERA_UART 1158 tristate "Altera UART support" 1159 select SERIAL_CORE 1160 help 1161 This driver supports the Altera softcore UART port. 1162 1163config SERIAL_ALTERA_UART_MAXPORTS 1164 int "Maximum number of Altera UART ports" 1165 depends on SERIAL_ALTERA_UART 1166 default 4 1167 help 1168 This setting lets you define the maximum number of the Altera 1169 UART ports. The usual default varies from board to board, and 1170 this setting is a way of catering for that. 1171 1172config SERIAL_ALTERA_UART_BAUDRATE 1173 int "Default baudrate for Altera UART ports" 1174 depends on SERIAL_ALTERA_UART 1175 default 115200 1176 help 1177 This setting lets you define what the default baudrate is for the 1178 Altera UART ports. The usual default varies from board to board, 1179 and this setting is a way of catering for that. 1180 1181config SERIAL_ALTERA_UART_CONSOLE 1182 bool "Altera UART console support" 1183 depends on SERIAL_ALTERA_UART=y 1184 select SERIAL_CORE_CONSOLE 1185 select SERIAL_EARLYCON 1186 help 1187 Enable a Altera UART port to be the system console. 1188 1189config SERIAL_PCH_UART 1190 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART" 1191 depends on PCI && (X86_32 || MIPS || COMPILE_TEST) 1192 select SERIAL_CORE 1193 help 1194 This driver is for PCH(Platform controller Hub) UART of Intel EG20T 1195 which is an IOH(Input/Output Hub) for x86 embedded processor. 1196 Enabling PCH_DMA, this PCH UART works as DMA mode. 1197 1198 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1199 Output Hub), ML7213, ML7223 and ML7831. 1200 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 1201 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 1202 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1203 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1204 1205config SERIAL_PCH_UART_CONSOLE 1206 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH" 1207 depends on SERIAL_PCH_UART=y 1208 select SERIAL_CORE_CONSOLE 1209 help 1210 Say Y here if you wish to use the PCH UART as the system console 1211 (the system console is the device which receives all kernel messages and 1212 warnings and which allows logins in single user mode). 1213 1214config SERIAL_MXS_AUART 1215 tristate "MXS AUART support" 1216 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST 1217 select SERIAL_CORE 1218 select SERIAL_MCTRL_GPIO if GPIOLIB 1219 help 1220 This driver supports the MXS and Alphascale ASM9260 Application 1221 UART (AUART) port. 1222 1223config SERIAL_MXS_AUART_CONSOLE 1224 bool "MXS AUART console support" 1225 depends on SERIAL_MXS_AUART=y 1226 select SERIAL_CORE_CONSOLE 1227 help 1228 Enable a MXS AUART port to be the system console. 1229 1230config SERIAL_XILINX_PS_UART 1231 tristate "Cadence (Xilinx Zynq) UART support" 1232 depends on OF 1233 select SERIAL_CORE 1234 help 1235 This driver supports the Cadence UART. It is found e.g. in Xilinx 1236 Zynq. 1237 1238config SERIAL_XILINX_PS_UART_CONSOLE 1239 bool "Cadence UART console support" 1240 depends on SERIAL_XILINX_PS_UART=y 1241 select SERIAL_CORE_CONSOLE 1242 select SERIAL_EARLYCON 1243 help 1244 Enable a Cadence UART port to be the system console. 1245 1246config SERIAL_AR933X 1247 tristate "AR933X serial port support" 1248 depends on HAVE_CLK && ATH79 1249 select SERIAL_CORE 1250 select SERIAL_MCTRL_GPIO if GPIOLIB 1251 help 1252 If you have an Atheros AR933X SOC based board and want to use the 1253 built-in UART of the SoC, say Y to this option. 1254 1255 To compile this driver as a module, choose M here: the 1256 module will be called ar933x_uart. 1257 1258config SERIAL_AR933X_CONSOLE 1259 bool "Console on AR933X serial port" 1260 depends on SERIAL_AR933X=y 1261 select SERIAL_CORE_CONSOLE 1262 help 1263 Enable a built-in UART port of the AR933X to be the system console. 1264 1265config SERIAL_AR933X_NR_UARTS 1266 int "Maximum number of AR933X serial ports" 1267 depends on SERIAL_AR933X 1268 default "2" 1269 help 1270 Set this to the number of serial ports you want the driver 1271 to support. 1272 1273config SERIAL_MPS2_UART_CONSOLE 1274 bool "MPS2 UART console support" 1275 depends on SERIAL_MPS2_UART 1276 select SERIAL_CORE_CONSOLE 1277 select SERIAL_EARLYCON 1278 1279config SERIAL_MPS2_UART 1280 bool "MPS2 UART port" 1281 depends on ARCH_MPS2 || COMPILE_TEST 1282 select SERIAL_CORE 1283 help 1284 This driver support the UART ports on ARM MPS2. 1285 1286config SERIAL_ARC 1287 tristate "ARC UART driver support" 1288 select SERIAL_CORE 1289 help 1290 Driver for on-chip UART for ARC(Synopsys) for the legacy 1291 FPGA Boards (ML50x/ARCAngel4) 1292 1293config SERIAL_ARC_CONSOLE 1294 bool "Console on ARC UART" 1295 depends on SERIAL_ARC=y 1296 select SERIAL_CORE_CONSOLE 1297 select SERIAL_EARLYCON 1298 help 1299 Enable system Console on ARC UART 1300 1301config SERIAL_ARC_NR_PORTS 1302 int "Number of ARC UART ports" 1303 depends on SERIAL_ARC 1304 range 1 3 1305 default "1" 1306 help 1307 Set this to the number of serial ports you want the driver 1308 to support. 1309 1310config SERIAL_RP2 1311 tristate "Comtrol RocketPort EXPRESS/INFINITY support" 1312 depends on PCI 1313 select SERIAL_CORE 1314 help 1315 This driver supports the Comtrol RocketPort EXPRESS and 1316 RocketPort INFINITY families of PCI/PCIe multiport serial adapters. 1317 These adapters use a "RocketPort 2" ASIC that is not compatible 1318 with the original RocketPort driver (CONFIG_ROCKETPORT). 1319 1320 To compile this driver as a module, choose M here: the 1321 module will be called rp2. 1322 1323 If you want to compile this driver into the kernel, say Y here. If 1324 you don't have a suitable RocketPort card installed, say N. 1325 1326config SERIAL_RP2_NR_UARTS 1327 int "Maximum number of RocketPort EXPRESS/INFINITY ports" 1328 depends on SERIAL_RP2 1329 default "32" 1330 help 1331 If multiple cards are present, the default limit of 32 ports may 1332 need to be increased. 1333 1334config SERIAL_FSL_LPUART 1335 tristate "Freescale lpuart serial port support" 1336 depends on HAS_DMA 1337 select SERIAL_CORE 1338 help 1339 Support for the on-chip lpuart on some Freescale SOCs. 1340 1341config SERIAL_FSL_LPUART_CONSOLE 1342 bool "Console on Freescale lpuart serial port" 1343 depends on SERIAL_FSL_LPUART=y 1344 select SERIAL_CORE_CONSOLE 1345 select SERIAL_EARLYCON 1346 help 1347 If you have enabled the lpuart serial port on the Freescale SoCs, 1348 you can make it the console by answering Y to this option. 1349 1350config SERIAL_FSL_LINFLEXUART 1351 tristate "Freescale LINFlexD UART serial port support" 1352 depends on PRINTK 1353 select SERIAL_CORE 1354 help 1355 Support for the on-chip LINFlexD UART on some Freescale SOCs. 1356 1357config SERIAL_FSL_LINFLEXUART_CONSOLE 1358 bool "Console on Freescale LINFlexD UART serial port" 1359 depends on SERIAL_FSL_LINFLEXUART=y 1360 select SERIAL_CORE_CONSOLE 1361 select SERIAL_EARLYCON 1362 help 1363 If you have enabled the LINFlexD UART serial port on the Freescale 1364 SoCs, you can make it the console by answering Y to this option. 1365 1366config SERIAL_CONEXANT_DIGICOLOR 1367 tristate "Conexant Digicolor CX92xxx USART serial port support" 1368 depends on OF 1369 select SERIAL_CORE 1370 help 1371 Support for the on-chip USART on Conexant Digicolor SoCs. 1372 1373config SERIAL_CONEXANT_DIGICOLOR_CONSOLE 1374 bool "Console on Conexant Digicolor serial port" 1375 depends on SERIAL_CONEXANT_DIGICOLOR=y 1376 select SERIAL_CORE_CONSOLE 1377 help 1378 If you have enabled the USART serial port on Conexant Digicolor 1379 SoCs, you can make it the console by answering Y to this option. 1380 1381config SERIAL_ST_ASC 1382 tristate "ST ASC serial port support" 1383 select SERIAL_CORE 1384 depends on ARM || COMPILE_TEST 1385 help 1386 This driver is for the on-chip Asynchronous Serial Controller on 1387 STMicroelectronics STi SoCs. 1388 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality. 1389 It support all industry standard baud rates. 1390 1391 If unsure, say N. 1392 1393config SERIAL_ST_ASC_CONSOLE 1394 bool "Support for console on ST ASC" 1395 depends on SERIAL_ST_ASC=y 1396 select SERIAL_CORE_CONSOLE 1397 1398config SERIAL_MEN_Z135 1399 tristate "MEN 16z135 Support" 1400 select SERIAL_CORE 1401 depends on MCB 1402 help 1403 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core 1404 on a MCB carrier. 1405 1406 This driver can also be build as a module. If so, the module will be called 1407 men_z135_uart.ko 1408 1409config SERIAL_SPRD 1410 tristate "Support for Spreadtrum serial" 1411 select SERIAL_CORE 1412 depends on COMMON_CLK 1413 help 1414 This enables the driver for the Spreadtrum's serial. 1415 1416config SERIAL_SPRD_CONSOLE 1417 bool "Spreadtrum UART console support" 1418 depends on SERIAL_SPRD=y 1419 select SERIAL_CORE_CONSOLE 1420 select SERIAL_EARLYCON 1421 help 1422 Support for early debug console using Spreadtrum's serial. This enables 1423 the console before standard serial driver is probed. This is enabled 1424 with "earlycon" on the kernel command line. The console is 1425 enabled when early_param is processed. 1426 1427config SERIAL_STM32 1428 tristate "STMicroelectronics STM32 serial port support" 1429 select SERIAL_CORE 1430 depends on ARCH_STM32 || COMPILE_TEST 1431 select SERIAL_MCTRL_GPIO if GPIOLIB 1432 help 1433 This driver is for the on-chip Serial Controller on 1434 STMicroelectronics STM32 MCUs. 1435 USART supports Rx & Tx functionality. 1436 It support all industry standard baud rates. 1437 1438 If unsure, say N. 1439 1440config SERIAL_STM32_CONSOLE 1441 bool "Support for console on STM32" 1442 depends on SERIAL_STM32=y 1443 select SERIAL_CORE_CONSOLE 1444 1445config SERIAL_MVEBU_UART 1446 bool "Marvell EBU serial port support" 1447 depends on ARCH_MVEBU || COMPILE_TEST 1448 select SERIAL_CORE 1449 help 1450 This driver is for Marvell EBU SoC's UART. If you have a machine 1451 based on the Armada-3700 SoC and wish to use the on-board serial 1452 port, 1453 say 'Y' here. 1454 Otherwise, say 'N'. 1455 1456config SERIAL_MVEBU_CONSOLE 1457 bool "Console on Marvell EBU serial port" 1458 depends on SERIAL_MVEBU_UART 1459 select SERIAL_CORE_CONSOLE 1460 select SERIAL_EARLYCON 1461 default y 1462 help 1463 Say 'Y' here if you wish to use Armada-3700 UART as the system console. 1464 (the system console is the device which receives all kernel messages 1465 and warnings and which allows logins in single user mode) 1466 Otherwise, say 'N'. 1467 1468config SERIAL_OWL 1469 tristate "Actions Semi Owl serial port support" 1470 depends on ARCH_ACTIONS || COMPILE_TEST 1471 select SERIAL_CORE 1472 help 1473 This driver is for Actions Semiconductor S500/S900 SoC's UART. 1474 Say 'Y' here if you wish to use the on-board serial port. 1475 Otherwise, say 'N'. 1476 1477config SERIAL_OWL_CONSOLE 1478 bool "Console on Actions Semi Owl serial port" 1479 depends on SERIAL_OWL=y 1480 select SERIAL_CORE_CONSOLE 1481 select SERIAL_EARLYCON 1482 default y 1483 help 1484 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART 1485 as the system console. 1486 1487config SERIAL_RDA 1488 bool "RDA Micro serial port support" 1489 depends on ARCH_RDA || COMPILE_TEST 1490 select SERIAL_CORE 1491 help 1492 This driver is for RDA8810PL SoC's UART. 1493 Say 'Y' here if you wish to use the on-board serial port. 1494 Otherwise, say 'N'. 1495 1496config SERIAL_RDA_CONSOLE 1497 bool "Console on RDA Micro serial port" 1498 depends on SERIAL_RDA=y 1499 select SERIAL_CORE_CONSOLE 1500 select SERIAL_EARLYCON 1501 default y 1502 help 1503 Say 'Y' here if you wish to use the RDA8810PL UART as the system 1504 console. Only earlycon is implemented currently. 1505 1506config SERIAL_MILBEAUT_USIO 1507 tristate "Milbeaut USIO/UART serial port support" 1508 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF) 1509 default ARCH_MILBEAUT 1510 select SERIAL_CORE 1511 help 1512 This selects the USIO/UART IP found in Socionext Milbeaut SoCs. 1513 1514config SERIAL_MILBEAUT_USIO_PORTS 1515 int "Maximum number of CSIO/UART ports (1-8)" 1516 range 1 8 1517 depends on SERIAL_MILBEAUT_USIO 1518 default "4" 1519 1520config SERIAL_MILBEAUT_USIO_CONSOLE 1521 bool "Support for console on MILBEAUT USIO/UART serial port" 1522 depends on SERIAL_MILBEAUT_USIO=y 1523 default y 1524 select SERIAL_CORE_CONSOLE 1525 select SERIAL_EARLYCON 1526 help 1527 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut 1528 SoCs as the system console (the system console is the device which 1529 receives all kernel messages and warnings and which allows logins in 1530 single user mode). 1531 1532config SERIAL_LITEUART 1533 tristate "LiteUART serial port support" 1534 depends on HAS_IOMEM 1535 depends on OF || COMPILE_TEST 1536 depends on LITEX || COMPILE_TEST 1537 select SERIAL_CORE 1538 help 1539 This driver is for the FPGA-based LiteUART serial controller from LiteX 1540 SoC builder. 1541 1542 Say 'Y' or 'M' here if you wish to use the LiteUART serial controller. 1543 Otherwise, say 'N'. 1544 1545config SERIAL_LITEUART_MAX_PORTS 1546 int "Maximum number of LiteUART ports" 1547 depends on SERIAL_LITEUART 1548 default "1" 1549 help 1550 Set this to the maximum number of serial ports you want the driver 1551 to support. 1552 1553config SERIAL_LITEUART_CONSOLE 1554 bool "LiteUART serial port console support" 1555 depends on SERIAL_LITEUART=y 1556 select SERIAL_CORE_CONSOLE 1557 select SERIAL_EARLYCON 1558 help 1559 Say 'Y' or 'M' here if you wish to use the FPGA-based LiteUART serial 1560 controller from LiteX SoC builder as the system console 1561 (the system console is the device which receives all kernel messages 1562 and warnings and which allows logins in single user mode). 1563 Otherwise, say 'N'. 1564 1565endmenu 1566 1567config SERIAL_MCTRL_GPIO 1568 tristate 1569