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_SEMIHOST 77 bool "Early console using Arm compatible semihosting" 78 depends on ARM64 || ARM || RISCV 79 select SERIAL_CORE 80 select SERIAL_CORE_CONSOLE 81 select SERIAL_EARLYCON 82 help 83 Support for early debug console using Arm compatible semihosting. 84 This enables the console before standard serial driver is probed. 85 This is enabled with "earlycon=smh" on the kernel command line. 86 The console is 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 COMMON_CLK 131 depends on ARCH_AT91 || COMPILE_TEST 132 select SERIAL_CORE 133 select SERIAL_MCTRL_GPIO if GPIOLIB 134 select MFD_AT91_USART 135 help 136 This enables the driver for the on-chip UARTs of the Atmel 137 AT91 processors. 138 139config SERIAL_ATMEL_CONSOLE 140 bool "Support for console on AT91 serial port" 141 depends on SERIAL_ATMEL=y 142 select SERIAL_CORE_CONSOLE 143 select SERIAL_EARLYCON 144 help 145 Say Y here if you wish to use an on-chip UART on a Atmel 146 AT91 processor as the system console (the system 147 console is the device which receives all kernel messages and 148 warnings and which allows logins in single user mode). 149 150config SERIAL_ATMEL_PDC 151 bool "Support DMA transfers on AT91 serial port" 152 depends on SERIAL_ATMEL 153 default y 154 help 155 Say Y here if you wish to use the PDC to do DMA transfers to 156 and from the Atmel AT91 serial port. In order to 157 actually use DMA transfers, make sure that the use_dma_tx 158 and use_dma_rx members in the atmel_uart_data struct is set 159 appropriately for each port. 160 161 Note that break and error handling currently doesn't work 162 properly when DMA is enabled. Make sure that ports where 163 this matters don't use DMA. 164 165config SERIAL_ATMEL_TTYAT 166 bool "Install as device ttyATn instead of ttySn" 167 depends on SERIAL_ATMEL=y 168 help 169 Say Y here if you wish to have the internal AT91 UARTs 170 appear as /dev/ttyATn (major 204, minor starting at 154) 171 instead of the normal /dev/ttySn (major 4, minor starting at 172 64). This is necessary if you also want other UARTs, such as 173 external 8250/16C550 compatible UARTs. 174 The ttySn nodes are legally reserved for the 8250 serial driver 175 but are often misused by other serial drivers. 176 177 To use this, you should create suitable ttyATn device nodes in 178 /dev/, and pass "console=ttyATn" to the kernel. 179 180 Say Y if you have an external 8250/16C550 UART. If unsure, say N. 181 182config SERIAL_KGDB_NMI 183 bool "Serial console over KGDB NMI debugger port" 184 depends on KGDB_SERIAL_CONSOLE 185 help 186 This special driver allows you to temporary use NMI debugger port 187 as a normal console (assuming that the port is attached to KGDB). 188 189 Unlike KDB's disable_nmi command, with this driver you are always 190 able to go back to the debugger using KGDB escape sequence ($3#33). 191 This is because this console driver processes the input in NMI 192 context, and thus is able to intercept the magic sequence. 193 194 Note that since the console interprets input and uses polling 195 communication methods, for things like PPP you still must fully 196 detach debugger port from the KGDB NMI (i.e. disable_nmi), and 197 use raw console. 198 199 If unsure, say N. 200 201config SERIAL_MESON 202 tristate "Meson serial port support" 203 depends on ARCH_MESON || COMPILE_TEST 204 select SERIAL_CORE 205 help 206 This enables the driver for the on-chip UARTs of the Amlogic 207 MesonX processors. 208 209config SERIAL_MESON_CONSOLE 210 bool "Support for console on meson" 211 depends on SERIAL_MESON 212 select SERIAL_CORE_CONSOLE 213 select SERIAL_EARLYCON 214 help 215 Say Y here if you wish to use a Amlogic MesonX UART as the 216 system console (the system console is the device which 217 receives all kernel messages and warnings and which allows 218 logins in single user mode) as /dev/ttyAMLx. 219 220config SERIAL_CLPS711X 221 tristate "CLPS711X serial port support" 222 depends on ARCH_CLPS711X || COMPILE_TEST 223 select SERIAL_CORE 224 select SERIAL_MCTRL_GPIO if GPIOLIB 225 help 226 This enables the driver for the on-chip UARTs of the Cirrus 227 Logic EP711x/EP721x/EP731x processors. 228 229config SERIAL_CLPS711X_CONSOLE 230 bool "Support for console on CLPS711X serial port" 231 depends on SERIAL_CLPS711X=y 232 select SERIAL_CORE_CONSOLE 233 help 234 Even if you say Y here, the currently visible virtual console 235 (/dev/tty0) will still be used as the system console by default, but 236 you can alter that using a kernel command line option such as 237 "console=ttyCL1". 238 239config SERIAL_SAMSUNG 240 tristate "Samsung SoC serial support" 241 select SERIAL_CORE 242 help 243 Support for the on-chip UARTs on the Samsung 244 S3C64xx/S5Pv210/Exynos and Apple M1 SoCs, providing 245 /dev/ttySAC0, 1 and 2 (note, some machines may not provide all of 246 these ports, depending on how the serial port pins are configured. 247 248 Choose Y/M here only if you build for such SoC. 249 250config SERIAL_SAMSUNG_UARTS 251 int 252 depends on SERIAL_SAMSUNG 253 default 4 254 help 255 Select the number of available UART ports for the Samsung S3C 256 serial driver 257 258config SERIAL_SAMSUNG_CONSOLE 259 bool "Support for console on Samsung SoC serial port" 260 depends on SERIAL_SAMSUNG 261 select SERIAL_CORE_CONSOLE 262 select SERIAL_EARLYCON 263 help 264 Allow selection of the S3C24XX on-board serial ports for use as 265 an virtual console. 266 267 Even if you say Y here, the currently visible virtual console 268 (/dev/tty0) will still be used as the system console by default, but 269 you can alter that using a kernel command line option such as 270 "console=ttySACx". (Try "man bootparam" or see the documentation of 271 your boot loader about how to pass options to the kernel at 272 boot time.) 273 274config SERIAL_TEGRA 275 tristate "NVIDIA Tegra20/30 SoC serial controller" 276 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 277 select SERIAL_CORE 278 help 279 Support for the on-chip UARTs on the NVIDIA Tegra series SOCs 280 providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not 281 provide all of these ports, depending on how the serial port 282 are enabled). This driver uses the APB DMA to achieve higher baudrate 283 and better performance. 284 285config SERIAL_TEGRA_TCU 286 tristate "NVIDIA Tegra Combined UART" 287 depends on MAILBOX 288 depends on (ARCH_TEGRA && TEGRA_HSP_MBOX) || COMPILE_TEST 289 select SERIAL_CORE 290 help 291 Support for the mailbox-based TCU (Tegra Combined UART) serial port. 292 TCU is a virtual serial port that allows multiplexing multiple data 293 streams into a single hardware serial port. 294 295config SERIAL_TEGRA_TCU_CONSOLE 296 bool "Support for console on a Tegra TCU serial port" 297 depends on SERIAL_TEGRA_TCU=y 298 select SERIAL_CORE_CONSOLE 299 default y 300 help 301 If you say Y here, it will be possible to use a the Tegra TCU as the 302 system console (the system console is the device which receives all 303 kernel messages and warnings and which allows logins in single user 304 mode). 305 306 If unsure, say Y. 307 308config SERIAL_MAX3100 309 tristate "MAX3100 support" 310 depends on SPI 311 select SERIAL_CORE 312 help 313 MAX3100 chip support 314 315config SERIAL_MAX310X 316 tristate "MAX310X support" 317 depends on SPI_MASTER 318 select SERIAL_CORE 319 select REGMAP_SPI if SPI_MASTER 320 select REGMAP_I2C if I2C 321 help 322 This selects support for an advanced UART from Maxim (Dallas). 323 Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830. 324 Each IC contains 128 words each of receive and transmit FIFO 325 that can be controlled through I2C or high-speed SPI. 326 327 Say Y here if you want to support this ICs. 328 329config SERIAL_DZ 330 bool "DECstation DZ serial driver" 331 depends on MACH_DECSTATION && 32BIT 332 select SERIAL_CORE 333 default y 334 help 335 DZ11-family serial controllers for DECstations and VAXstations, 336 including the DC7085, M7814, and M7819. 337 338config SERIAL_DZ_CONSOLE 339 bool "Support console on DECstation DZ serial driver" 340 depends on SERIAL_DZ=y 341 select SERIAL_CORE_CONSOLE 342 default y 343 help 344 If you say Y here, it will be possible to use a serial port as the 345 system console (the system console is the device which receives all 346 kernel messages and warnings and which allows logins in single user 347 mode). 348 349 Note that the firmware uses ttyS3 as the serial console on 350 DECstations that use this driver. 351 352 If unsure, say Y. 353 354config SERIAL_ZS 355 tristate "DECstation Z85C30 serial support" 356 depends on MACH_DECSTATION 357 select SERIAL_CORE 358 default y 359 help 360 Support for the Zilog 85C350 serial communications controller used 361 for serial ports in newer DECstation systems. These include the 362 DECsystem 5900 and all models of the DECstation and DECsystem 5000 363 systems except from model 200. 364 365 If unsure, say Y. To compile this driver as a module, choose M here: 366 the module will be called zs. 367 368config SERIAL_ZS_CONSOLE 369 bool "Support for console on a DECstation Z85C30 serial port" 370 depends on SERIAL_ZS=y 371 select SERIAL_CORE_CONSOLE 372 default y 373 help 374 If you say Y here, it will be possible to use a serial port as the 375 system console (the system console is the device which receives all 376 kernel messages and warnings and which allows logins in single user 377 mode). 378 379 Note that the firmware uses ttyS1 as the serial console on the 380 Maxine and ttyS3 on the others using this driver. 381 382 If unsure, say Y. 383 384config SERIAL_21285 385 tristate "DC21285 serial port support" 386 depends on FOOTBRIDGE 387 select SERIAL_CORE 388 help 389 If you have a machine based on a 21285 (Footbridge) StrongARM(R)/ 390 PCI bridge you can enable its onboard serial port by enabling this 391 option. 392 393config SERIAL_21285_CONSOLE 394 bool "Console on DC21285 serial port" 395 depends on SERIAL_21285=y 396 select SERIAL_CORE_CONSOLE 397 help 398 If you have enabled the serial port on the 21285 footbridge you can 399 make it the console by answering Y to this option. 400 401 Even if you say Y here, the currently visible virtual console 402 (/dev/tty0) will still be used as the system console by default, but 403 you can alter that using a kernel command line option such as 404 "console=ttyFB". (Try "man bootparam" or see the documentation of 405 your boot loader (lilo or loadlin) about how to pass options to the 406 kernel at boot time.) 407 408config SERIAL_PXA 409 bool "PXA serial port support (DEPRECATED)" 410 depends on ARCH_PXA || ARCH_MMP 411 select SERIAL_CORE 412 select SERIAL_8250_PXA if SERIAL_8250=y 413 select SERIAL_PXA_NON8250 if !SERIAL_8250=y 414 help 415 If you have a machine based on an Intel XScale PXA2xx CPU you 416 can enable its onboard serial ports by enabling this option. 417 418 Unless you have a specific need, you should use SERIAL_8250_PXA 419 instead of this. 420 421config SERIAL_PXA_NON8250 422 bool 423 depends on !SERIAL_8250 || COMPILE_TEST 424 425config SERIAL_PXA_CONSOLE 426 bool "Console on PXA serial port (DEPRECATED)" 427 depends on SERIAL_PXA 428 select SERIAL_CORE_CONSOLE 429 select SERIAL_8250_CONSOLE if SERIAL_8250=y 430 help 431 If you have enabled the serial port on the Intel XScale PXA 432 CPU you can make it the console by answering Y to this option. 433 434 Even if you say Y here, the currently visible virtual console 435 (/dev/tty0) will still be used as the system console by default, but 436 you can alter that using a kernel command line option such as 437 "console=ttySA0". (Try "man bootparam" or see the documentation of 438 your boot loader (lilo or loadlin) about how to pass options to the 439 kernel at boot time.) 440 441 Unless you have a specific need, you should use SERIAL_8250_PXA 442 and SERIAL_8250_CONSOLE instead of this. 443 444config SERIAL_SA1100 445 bool "SA1100 serial port support" 446 depends on ARCH_SA1100 447 select SERIAL_CORE 448 select SERIAL_MCTRL_GPIO if GPIOLIB 449 help 450 If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you 451 can enable its onboard serial port by enabling this option. 452 Please read <file:Documentation/arch/arm/sa1100/serial_uart.rst> for 453 further info. 454 455config SERIAL_SA1100_CONSOLE 456 bool "Console on SA1100 serial port" 457 depends on SERIAL_SA1100 458 select SERIAL_CORE_CONSOLE 459 help 460 If you have enabled the serial port on the SA1100/SA1110 StrongARM 461 CPU you can make it the console by answering Y to this option. 462 463 Even if you say Y here, the currently visible virtual console 464 (/dev/tty0) will still be used as the system console by default, but 465 you can alter that using a kernel command line option such as 466 "console=ttySA0". (Try "man bootparam" or see the documentation of 467 your boot loader (lilo or loadlin) about how to pass options to the 468 kernel at boot time.) 469 470config SERIAL_IMX 471 tristate "IMX serial port support" 472 depends on ARCH_MXC || COMPILE_TEST 473 select SERIAL_CORE 474 select RATIONAL 475 select SERIAL_MCTRL_GPIO if GPIOLIB 476 help 477 If you have a machine based on a Motorola IMX CPU you 478 can enable its onboard serial port by enabling this option. 479 480config SERIAL_IMX_CONSOLE 481 tristate "Console on IMX serial port" 482 depends on SERIAL_IMX 483 select SERIAL_CORE_CONSOLE 484 help 485 If you have enabled the serial port on the Freescale IMX 486 CPU you can make it the console by answering Y/M to this option. 487 488 Even if you say Y/M here, the currently visible virtual console 489 (/dev/tty0) will still be used as the system console by default, but 490 you can alter that using a kernel command line option such as 491 "console=ttymxc0". (Try "man bootparam" or see the documentation of 492 your bootloader about how to pass options to the kernel at boot time.) 493 494config SERIAL_IMX_EARLYCON 495 bool "Earlycon on IMX serial port" 496 depends on ARCH_MXC || COMPILE_TEST 497 depends on OF 498 select SERIAL_CORE 499 select SERIAL_EARLYCON 500 select SERIAL_CORE_CONSOLE 501 default y if SERIAL_IMX_CONSOLE 502 help 503 If you have enabled the earlycon on the Freescale IMX 504 CPU you can make it the earlycon by answering Y to this option. 505 506config SERIAL_UARTLITE 507 tristate "Xilinx uartlite serial port support" 508 depends on HAS_IOMEM 509 select SERIAL_CORE 510 help 511 Say Y here if you want to use the Xilinx uartlite serial controller. 512 513 To compile this driver as a module, choose M here: the 514 module will be called uartlite. 515 516config SERIAL_UARTLITE_CONSOLE 517 bool "Support for console on Xilinx uartlite serial port" 518 depends on SERIAL_UARTLITE=y 519 select SERIAL_CORE_CONSOLE 520 select SERIAL_EARLYCON 521 help 522 Say Y here if you wish to use a Xilinx uartlite as the system 523 console (the system console is the device which receives all kernel 524 messages and warnings and which allows logins in single user mode). 525 526config SERIAL_UARTLITE_NR_UARTS 527 int "Maximum number of uartlite serial ports" 528 depends on SERIAL_UARTLITE 529 range 1 256 530 default 1 531 help 532 Set this to the number of uartlites in your system, or the number 533 you think you might implement. 534 535config SERIAL_SUNCORE 536 bool 537 depends on SPARC 538 select SERIAL_CORE 539 select SERIAL_CORE_CONSOLE 540 default y 541 542config SERIAL_SUNZILOG 543 tristate "Sun Zilog8530 serial support" 544 depends on SPARC 545 help 546 This driver supports the Zilog8530 serial ports found on many Sparc 547 systems. Say Y or M if you want to be able to these serial ports. 548 549config SERIAL_SUNZILOG_CONSOLE 550 bool "Console on Sun Zilog8530 serial port" 551 depends on SERIAL_SUNZILOG=y 552 help 553 If you would like to be able to use the Zilog8530 serial port 554 on your Sparc system as the console, you can do so by answering 555 Y to this option. 556 557config SERIAL_SUNSU 558 tristate "Sun SU serial support" 559 depends on SPARC && PCI 560 help 561 This driver supports the 8250 serial ports that run the keyboard and 562 mouse on (PCI) UltraSPARC systems. Say Y or M if you want to be able 563 to these serial ports. 564 565config SERIAL_SUNSU_CONSOLE 566 bool "Console on Sun SU serial port" 567 depends on SERIAL_SUNSU=y 568 help 569 If you would like to be able to use the SU serial port 570 on your Sparc system as the console, you can do so by answering 571 Y to this option. 572 573config SERIAL_MUX 574 tristate "Serial MUX support" 575 depends on GSC 576 select SERIAL_CORE 577 default y 578 help 579 Saying Y here will enable the hardware MUX serial driver for 580 the Nova, K class systems and D class with a 'remote control card'. 581 The hardware MUX is not 8250/16550 compatible therefore the 582 /dev/ttyB0 device is shared between the Serial MUX and the PDC 583 software console. The following steps need to be completed to use 584 the Serial MUX: 585 586 1. create the device entry (mknod /dev/ttyB0 c 11 0) 587 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 588 3. Add device ttyB0 to /etc/securetty (if you want to log on as 589 root on this console.) 590 4. Change the kernel command console parameter to: console=ttyB0 591 592config SERIAL_MUX_CONSOLE 593 bool "Support for console on serial MUX" 594 depends on SERIAL_MUX=y 595 select SERIAL_CORE_CONSOLE 596 default y 597 598config SERIAL_SUNSAB 599 tristate "Sun Siemens SAB82532 serial support" 600 depends on SPARC && PCI 601 help 602 This driver supports the Siemens SAB82532 DUSCC serial ports on newer 603 (PCI) UltraSPARC systems. Say Y or M if you want to be able to these 604 serial ports. 605 606config SERIAL_SUNSAB_CONSOLE 607 bool "Console on Sun Siemens SAB82532 serial port" 608 depends on SERIAL_SUNSAB=y 609 help 610 If you would like to be able to use the SAB82532 serial port 611 on your Sparc system as the console, you can do so by answering 612 Y to this option. 613 614config SERIAL_SUNHV 615 bool "Sun4v Hypervisor Console support" 616 depends on SPARC64 617 help 618 This driver supports the console device found on SUN4V Sparc 619 systems. Say Y if you want to be able to use this device. 620 621config SERIAL_IP22_ZILOG 622 tristate "SGI Zilog8530 serial support" 623 depends on SGI_HAS_ZILOG 624 select SERIAL_CORE 625 help 626 This driver supports the Zilog8530 serial ports found on SGI 627 systems. Say Y or M if you want to be able to these serial ports. 628 629config SERIAL_IP22_ZILOG_CONSOLE 630 bool "Console on SGI Zilog8530 serial port" 631 depends on SERIAL_IP22_ZILOG=y 632 select SERIAL_CORE_CONSOLE 633 634config SERIAL_SH_SCI 635 tristate "SuperH SCI(F) serial port support" 636 depends on SUPERH || ARCH_RENESAS || COMPILE_TEST 637 select SERIAL_CORE 638 select SERIAL_MCTRL_GPIO if GPIOLIB 639 640config SERIAL_SH_SCI_NR_UARTS 641 int "Maximum number of SCI(F) serial ports" if EXPERT 642 range 1 64 if 64BIT 643 range 1 32 if !64BIT 644 depends on SERIAL_SH_SCI 645 default "10" if SUPERH 646 default "18" if ARCH_RENESAS 647 default "2" 648 649config SERIAL_SH_SCI_CONSOLE 650 bool "Support for console on SuperH SCI(F)" if EXPERT 651 depends on SERIAL_SH_SCI=y 652 select SERIAL_CORE_CONSOLE 653 default y 654 655config SERIAL_SH_SCI_EARLYCON 656 bool "Support for early console on SuperH SCI(F)" if EXPERT 657 depends on SERIAL_SH_SCI=y 658 select SERIAL_CORE_CONSOLE 659 select SERIAL_EARLYCON 660 default ARCH_RENESAS 661 662config SERIAL_SH_SCI_DMA 663 bool "DMA support" if EXPERT 664 depends on SERIAL_SH_SCI && DMA_ENGINE 665 default ARCH_RENESAS 666 667config SERIAL_HS_LPC32XX 668 tristate "LPC32XX high speed serial port support" 669 depends on ARCH_LPC32XX || COMPILE_TEST 670 depends on OF 671 select SERIAL_CORE 672 help 673 Support for the LPC32XX high speed serial ports (up to 900kbps). 674 Those are UARTs completely different from the Standard UARTs on the 675 LPC32XX SoC. 676 Choose M or Y here to build this driver. 677 678config SERIAL_HS_LPC32XX_CONSOLE 679 bool "Enable LPC32XX high speed UART serial console" 680 depends on SERIAL_HS_LPC32XX=y 681 select SERIAL_CORE_CONSOLE 682 help 683 If you would like to be able to use one of the high speed serial 684 ports on the LPC32XX as the console, you can do so by answering 685 Y to this option. 686 687config SERIAL_CORE 688 tristate 689 690config SERIAL_CORE_CONSOLE 691 bool 692 693config CONSOLE_POLL 694 bool 695 696config SERIAL_MCF 697 bool "Coldfire serial support" 698 depends on COLDFIRE 699 select SERIAL_CORE 700 help 701 This serial driver supports the Freescale Coldfire serial ports. 702 703config SERIAL_MCF_BAUDRATE 704 int "Default baudrate for Coldfire serial ports" 705 depends on SERIAL_MCF 706 default 19200 707 help 708 This setting lets you define what the default baudrate is for the 709 ColdFire serial ports. The usual default varies from board to board, 710 and this setting is a way of catering for that. 711 712config SERIAL_MCF_CONSOLE 713 bool "Coldfire serial console support" 714 depends on SERIAL_MCF 715 select SERIAL_CORE_CONSOLE 716 help 717 Enable a ColdFire internal serial port to be the system console. 718 719config SERIAL_PMACZILOG 720 tristate "Mac or PowerMac z85c30 ESCC support" 721 depends on (M68K && MAC) || PPC_PMAC 722 select SERIAL_CORE 723 help 724 This driver supports the Zilog z85C30 serial ports found on 725 (Power)Mac machines. 726 Say Y or M if you want to be able to these serial ports. 727 728config SERIAL_PMACZILOG_TTYS 729 bool "Use ttySn device nodes for Zilog z85c30" 730 depends on SERIAL_PMACZILOG 731 help 732 The pmac_zilog driver for the z85C30 chip on many powermacs 733 historically used the device numbers for /dev/ttySn. The 734 8250 serial port driver also uses these numbers, which means 735 the two drivers being unable to coexist; you could not use 736 both z85C30 and 8250 type ports at the same time. 737 738 If this option is not selected, the pmac_zilog driver will 739 use the device numbers allocated for /dev/ttyPZn. This allows 740 the pmac_zilog and 8250 drivers to co-exist, but may cause 741 existing userspace setups to break. Programs that need to 742 access the built-in serial ports on powermacs will need to 743 be reconfigured to use /dev/ttyPZn instead of /dev/ttySn. 744 745 If you enable this option, any z85c30 ports in the system will 746 be registered as ttyS0 onwards as in the past, and you will be 747 unable to use the 8250 module for PCMCIA or other 16C550-style 748 UARTs. 749 750 Say N unless you need the z85c30 ports on your (Power)Mac 751 to appear as /dev/ttySn. 752 753config SERIAL_PMACZILOG_CONSOLE 754 bool "Console on Mac or PowerMac z85c30 serial port" 755 depends on SERIAL_PMACZILOG=y 756 select SERIAL_CORE_CONSOLE 757 help 758 If you would like to be able to use the z85c30 serial port 759 on your (Power)Mac as the console, you can do so by answering 760 Y to this option. 761 762config SERIAL_CPM 763 tristate "CPM SCC/SMC serial port support" 764 depends on CPM2 || CPM1 765 select SERIAL_CORE 766 help 767 This driver supports the SCC and SMC serial ports on Motorola 768 embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx) 769 770config SERIAL_CPM_CONSOLE 771 bool "Support for console on CPM SCC/SMC serial port" 772 depends on SERIAL_CPM=y 773 select SERIAL_CORE_CONSOLE 774 help 775 Say Y here if you wish to use a SCC or SMC CPM UART as the system 776 console (the system console is the device which receives all kernel 777 messages and warnings and which allows logins in single user mode). 778 779 Even if you say Y here, the currently visible framebuffer console 780 (/dev/tty0) will still be used as the system console by default, but 781 you can alter that using a kernel command line option such as 782 "console=ttyCPM0". (Try "man bootparam" or see the documentation of 783 your boot loader (lilo or loadlin) about how to pass options to the 784 kernel at boot time.) 785 786config SERIAL_PIC32 787 tristate "Microchip PIC32 serial support" 788 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 789 select SERIAL_CORE 790 help 791 If you have a PIC32, this driver supports the serial ports. 792 793 Say Y or M to use PIC32 serial ports, otherwise say N. Note that 794 to use a serial port as a console, this must be included in kernel and 795 not as a module. 796 797config SERIAL_PIC32_CONSOLE 798 bool "PIC32 serial console support" 799 depends on SERIAL_PIC32=y 800 select SERIAL_CORE_CONSOLE 801 help 802 If you have a PIC32, this driver supports the putting a console on one 803 of the serial ports. 804 805 Say Y to use the PIC32 console, otherwise say N. 806 807config SERIAL_MPC52xx 808 tristate "Freescale MPC52xx/MPC512x family PSC serial support" 809 depends on PPC_MPC52xx || PPC_MPC512x 810 select SERIAL_CORE 811 help 812 This driver supports MPC52xx and MPC512x PSC serial ports. If you would 813 like to use them, you must answer Y or M to this option. Note that 814 for use as console, it must be included in kernel and not as a 815 module. 816 817config SERIAL_MPC52xx_CONSOLE 818 bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port" 819 depends on SERIAL_MPC52xx=y 820 select SERIAL_CORE_CONSOLE 821 help 822 Select this options if you'd like to use one of the PSC serial port 823 of the Freescale MPC52xx family as a console. 824 825config SERIAL_MPC52xx_CONSOLE_BAUD 826 int "Freescale MPC52xx/MPC512x family PSC serial port baud" 827 depends on SERIAL_MPC52xx_CONSOLE=y 828 default "9600" 829 help 830 Select the MPC52xx console baud rate. 831 This value is only used if the bootloader doesn't pass in the 832 console baudrate 833 834config SERIAL_ICOM 835 tristate "IBM Multiport Serial Adapter" 836 depends on PCI 837 depends on PPC_PSERIES || COMPILE_TEST 838 select SERIAL_CORE 839 select FW_LOADER 840 help 841 This driver is for a family of multiport serial adapters 842 including 2 port RVX, 2 port internal modem, 4 port internal 843 modem and a split 1 port RVX and 1 port internal modem. 844 845 This driver can also be built as a module. If so, the module 846 will be called icom. 847 848config SERIAL_TXX9 849 bool "TMPTX39XX/49XX SIO support" 850 depends on HAS_TXX9_SERIAL 851 select SERIAL_CORE 852 default y 853 854config HAS_TXX9_SERIAL 855 bool 856 857config SERIAL_TXX9_NR_UARTS 858 int "Maximum number of TMPTX39XX/49XX SIO ports" 859 depends on SERIAL_TXX9 860 default "6" 861 862config SERIAL_TXX9_CONSOLE 863 bool "TMPTX39XX/49XX SIO Console support" 864 depends on SERIAL_TXX9=y 865 select SERIAL_CORE_CONSOLE 866 867config SERIAL_TXX9_STDSERIAL 868 bool "TX39XX/49XX SIO act as standard serial" 869 depends on !SERIAL_8250 && SERIAL_TXX9 870 871config SERIAL_JSM 872 tristate "Digi International NEO and Classic PCI Support" 873 depends on PCI 874 select SERIAL_CORE 875 help 876 This is a driver for Digi International's Neo and Classic series 877 of cards which provide multiple serial ports. You would need 878 something like this to connect more than two modems to your Linux 879 box, for instance in order to become a dial-in server. This driver 880 supports PCI boards only. 881 882 If you have a card like this, say Y here, otherwise say N. 883 884 To compile this driver as a module, choose M here: the 885 module will be called jsm. 886 887config SERIAL_MSM 888 tristate "MSM on-chip serial port support" 889 depends on ARCH_QCOM || COMPILE_TEST 890 select SERIAL_CORE 891 892config SERIAL_MSM_CONSOLE 893 bool "MSM serial console support" 894 depends on SERIAL_MSM=y 895 select SERIAL_CORE_CONSOLE 896 select SERIAL_EARLYCON 897 898config SERIAL_QCOM_GENI 899 tristate "QCOM on-chip GENI based serial port support" 900 depends on ARCH_QCOM || COMPILE_TEST 901 depends on QCOM_GENI_SE 902 select SERIAL_CORE 903 904config SERIAL_QCOM_GENI_CONSOLE 905 bool "QCOM GENI Serial Console support" 906 depends on SERIAL_QCOM_GENI 907 select SERIAL_CORE_CONSOLE 908 select SERIAL_EARLYCON 909 help 910 Serial console driver for Qualcomm Technologies Inc's GENI based 911 QUP hardware. 912 913config SERIAL_VT8500 914 bool "VIA VT8500 on-chip serial port support" 915 depends on ARCH_VT8500 || COMPILE_TEST 916 select SERIAL_CORE 917 918config SERIAL_VT8500_CONSOLE 919 bool "VIA VT8500 serial console support" 920 depends on SERIAL_VT8500=y 921 select SERIAL_CORE_CONSOLE 922 923config SERIAL_OMAP 924 tristate "OMAP serial port support" 925 depends on (ARCH_OMAP2PLUS && !SERIAL_8250_OMAP) || COMPILE_TEST 926 select SERIAL_CORE 927 help 928 If you have a machine based on an Texas Instruments OMAP CPU you 929 can enable its onboard serial ports by enabling this option. 930 931 By enabling this option you take advantage of dma feature available 932 with the omap-serial driver. DMA support can be enabled from platform 933 data. 934 935config SERIAL_OMAP_CONSOLE 936 bool "Console on OMAP serial port" 937 depends on SERIAL_OMAP=y 938 select SERIAL_CORE_CONSOLE 939 help 940 Select this option if you would like to use omap serial port as 941 console. 942 943 Even if you say Y here, the currently visible virtual console 944 (/dev/tty0) will still be used as the system console by default, but 945 you can alter that using a kernel command line option such as 946 "console=ttyOx". (Try "man bootparam" or see the documentation of 947 your boot loader about how to pass options to the kernel at 948 boot time.) 949 950config SERIAL_SIFIVE 951 tristate "SiFive UART support" 952 depends on OF 953 default ARCH_SIFIVE || ARCH_CANAAN 954 select SERIAL_CORE 955 help 956 Select this option if you are building a kernel for a device that 957 contains a SiFive UART IP block. This type of UART is present on 958 SiFive FU540 SoCs, among others. 959 960config SERIAL_SIFIVE_CONSOLE 961 bool "Console on SiFive UART" 962 depends on SERIAL_SIFIVE=y 963 default ARCH_SIFIVE || ARCH_CANAAN 964 select SERIAL_CORE_CONSOLE 965 select SERIAL_EARLYCON 966 help 967 Select this option if you would like to use a SiFive UART as the 968 system console. 969 970 Even if you say Y here, the currently visible virtual console 971 (/dev/tty0) will still be used as the system console by default, but 972 you can alter that using a kernel command line option such as 973 "console=ttySIFx". (Try "man bootparam" or see the documentation of 974 your boot loader about how to pass options to the kernel at 975 boot time.) 976 977config SERIAL_LANTIQ 978 tristate "Lantiq serial driver" 979 depends on (LANTIQ || X86) || COMPILE_TEST 980 select SERIAL_CORE 981 help 982 Support for UART on Lantiq and Intel SoCs. 983 To compile this driver as a module, select M here. The 984 module will be called lantiq. 985 986config SERIAL_LANTIQ_CONSOLE 987 bool "Console on Lantiq UART" 988 depends on SERIAL_LANTIQ=y 989 select SERIAL_CORE_CONSOLE 990 select SERIAL_EARLYCON 991 help 992 Select this option if you would like to use a Lantiq UART as the 993 system console. 994 995config SERIAL_QE 996 tristate "Freescale QUICC Engine serial port support" 997 depends on QUICC_ENGINE 998 select SERIAL_CORE 999 select FW_LOADER 1000 help 1001 This driver supports the QE serial ports on Freescale embedded 1002 PowerPC that contain a QUICC Engine. 1003 1004config SERIAL_SCCNXP 1005 tristate "SCCNXP serial port support" 1006 select SERIAL_CORE 1007 help 1008 This selects support for an advanced UART from NXP (Philips). 1009 Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92, 1010 SC28L202, SCC68681 and SCC68692. 1011 1012config SERIAL_SCCNXP_CONSOLE 1013 bool "Console on SCCNXP serial port" 1014 depends on SERIAL_SCCNXP=y 1015 select SERIAL_CORE_CONSOLE 1016 help 1017 Support for console on SCCNXP serial ports. 1018 1019config SERIAL_SC16IS7XX_CORE 1020 tristate 1021 1022config SERIAL_SC16IS7XX 1023 tristate "SC16IS7xx serial support" 1024 select SERIAL_CORE 1025 depends on (SPI_MASTER && !I2C) || I2C 1026 help 1027 This selects support for SC16IS7xx serial ports. 1028 Supported ICs are SC16IS740, SC16IS741, SC16IS750, SC16IS752, 1029 SC16IS760 and SC16IS762. Select supported buses using options below. 1030 1031config SERIAL_SC16IS7XX_I2C 1032 bool "SC16IS7xx for I2C interface" 1033 depends on SERIAL_SC16IS7XX 1034 depends on I2C 1035 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1036 select REGMAP_I2C if I2C 1037 default y 1038 help 1039 Enable SC16IS7xx driver on I2C bus, 1040 If required say y, and say n to i2c if not required, 1041 Enabled by default to support oldconfig. 1042 You must select at least one bus for the driver to be built. 1043 1044config SERIAL_SC16IS7XX_SPI 1045 bool "SC16IS7xx for spi interface" 1046 depends on SERIAL_SC16IS7XX 1047 depends on SPI_MASTER 1048 select SERIAL_SC16IS7XX_CORE if SERIAL_SC16IS7XX 1049 select REGMAP_SPI if SPI_MASTER 1050 help 1051 Enable SC16IS7xx driver on SPI bus, 1052 If required say y, and say n to spi if not required, 1053 This is additional support to existing driver. 1054 You must select at least one bus for the driver to be built. 1055 1056config SERIAL_TIMBERDALE 1057 tristate "Support for timberdale UART" 1058 select SERIAL_CORE 1059 depends on X86_32 || COMPILE_TEST 1060 help 1061 Add support for UART controller on timberdale. 1062 1063config SERIAL_BCM63XX 1064 tristate "Broadcom BCM63xx/BCM33xx UART support" 1065 select SERIAL_CORE 1066 depends on ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST 1067 default ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC 1068 help 1069 This enables the driver for the onchip UART core found on 1070 the following chipsets: 1071 1072 BCM33xx (cable modem) 1073 BCM63xx/BCM63xxx (DSL) 1074 BCM68xx (PON) 1075 BCM7xxx (STB) - DOCSIS console 1076 1077config SERIAL_BCM63XX_CONSOLE 1078 bool "Console on BCM63xx serial port" 1079 depends on SERIAL_BCM63XX=y 1080 select SERIAL_CORE_CONSOLE 1081 select SERIAL_EARLYCON 1082 help 1083 If you have enabled the serial port on the BCM63xx CPU 1084 you can make it the console by answering Y to this option. 1085 1086config SERIAL_GRLIB_GAISLER_APBUART 1087 tristate "GRLIB APBUART serial support" 1088 depends on OF && SPARC 1089 select SERIAL_CORE 1090 help 1091 Add support for the GRLIB APBUART serial port. 1092 1093config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE 1094 bool "Console on GRLIB APBUART serial port" 1095 depends on SERIAL_GRLIB_GAISLER_APBUART=y 1096 select SERIAL_CORE_CONSOLE 1097 help 1098 Support for running a console on the GRLIB APBUART 1099 1100config SERIAL_ALTERA_JTAGUART 1101 tristate "Altera JTAG UART support" 1102 select SERIAL_CORE 1103 help 1104 This driver supports the Altera JTAG UART port. 1105 1106config SERIAL_ALTERA_JTAGUART_CONSOLE 1107 bool "Altera JTAG UART console support" 1108 depends on SERIAL_ALTERA_JTAGUART=y 1109 select SERIAL_CORE_CONSOLE 1110 select SERIAL_EARLYCON 1111 help 1112 Enable a Altera JTAG UART port to be the system console. 1113 1114config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS 1115 bool "Bypass output when no connection" 1116 depends on SERIAL_ALTERA_JTAGUART_CONSOLE 1117 select SERIAL_CORE_CONSOLE 1118 help 1119 Bypass console output and keep going even if there is no 1120 JTAG terminal connection with the host. 1121 1122config SERIAL_ALTERA_UART 1123 tristate "Altera UART support" 1124 select SERIAL_CORE 1125 help 1126 This driver supports the Altera softcore UART port. 1127 1128config SERIAL_ALTERA_UART_MAXPORTS 1129 int "Maximum number of Altera UART ports" 1130 depends on SERIAL_ALTERA_UART 1131 default 4 1132 help 1133 This setting lets you define the maximum number of the Altera 1134 UART ports. The usual default varies from board to board, and 1135 this setting is a way of catering for that. 1136 1137config SERIAL_ALTERA_UART_BAUDRATE 1138 int "Default baudrate for Altera UART ports" 1139 depends on SERIAL_ALTERA_UART 1140 default 115200 1141 help 1142 This setting lets you define what the default baudrate is for the 1143 Altera UART ports. The usual default varies from board to board, 1144 and this setting is a way of catering for that. 1145 1146config SERIAL_ALTERA_UART_CONSOLE 1147 bool "Altera UART console support" 1148 depends on SERIAL_ALTERA_UART=y 1149 select SERIAL_CORE_CONSOLE 1150 select SERIAL_EARLYCON 1151 help 1152 Enable a Altera UART port to be the system console. 1153 1154config SERIAL_PCH_UART 1155 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART" 1156 depends on PCI && (X86_32 || MIPS || COMPILE_TEST) 1157 select SERIAL_CORE 1158 help 1159 This driver is for PCH(Platform controller Hub) UART of Intel EG20T 1160 which is an IOH(Input/Output Hub) for x86 embedded processor. 1161 Enabling PCH_DMA, this PCH UART works as DMA mode. 1162 1163 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1164 Output Hub), ML7213, ML7223 and ML7831. 1165 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 1166 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 1167 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1168 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1169 1170config SERIAL_PCH_UART_CONSOLE 1171 bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH" 1172 depends on SERIAL_PCH_UART=y 1173 select SERIAL_CORE_CONSOLE 1174 help 1175 Say Y here if you wish to use the PCH UART as the system console 1176 (the system console is the device which receives all kernel messages and 1177 warnings and which allows logins in single user mode). 1178 1179config SERIAL_MXS_AUART 1180 tristate "MXS AUART support" 1181 depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST 1182 select SERIAL_CORE 1183 select SERIAL_MCTRL_GPIO if GPIOLIB 1184 help 1185 This driver supports the MXS and Alphascale ASM9260 Application 1186 UART (AUART) port. 1187 1188config SERIAL_MXS_AUART_CONSOLE 1189 bool "MXS AUART console support" 1190 depends on SERIAL_MXS_AUART=y 1191 select SERIAL_CORE_CONSOLE 1192 help 1193 Enable a MXS AUART port to be the system console. 1194 1195config SERIAL_XILINX_PS_UART 1196 tristate "Cadence (Xilinx Zynq) UART support" 1197 depends on OF 1198 select SERIAL_CORE 1199 help 1200 This driver supports the Cadence UART. It is found e.g. in Xilinx 1201 Zynq. 1202 1203config SERIAL_XILINX_PS_UART_CONSOLE 1204 bool "Cadence UART console support" 1205 depends on SERIAL_XILINX_PS_UART=y 1206 select SERIAL_CORE_CONSOLE 1207 select SERIAL_EARLYCON 1208 help 1209 Enable a Cadence UART port to be the system console. 1210 1211config SERIAL_AR933X 1212 tristate "AR933X serial port support" 1213 depends on (HAVE_CLK && ATH79) || (MIPS && COMPILE_TEST) 1214 select SERIAL_CORE 1215 select SERIAL_MCTRL_GPIO if GPIOLIB 1216 help 1217 If you have an Atheros AR933X SOC based board and want to use the 1218 built-in UART of the SoC, say Y to this option. 1219 1220 To compile this driver as a module, choose M here: the 1221 module will be called ar933x_uart. 1222 1223config SERIAL_AR933X_CONSOLE 1224 bool "Console on AR933X serial port" 1225 depends on SERIAL_AR933X=y 1226 select SERIAL_CORE_CONSOLE 1227 help 1228 Enable a built-in UART port of the AR933X to be the system console. 1229 1230config SERIAL_AR933X_NR_UARTS 1231 int "Maximum number of AR933X serial ports" 1232 depends on SERIAL_AR933X 1233 default "2" 1234 help 1235 Set this to the number of serial ports you want the driver 1236 to support. 1237 1238config SERIAL_MPS2_UART_CONSOLE 1239 bool "MPS2 UART console support" 1240 depends on SERIAL_MPS2_UART 1241 select SERIAL_CORE_CONSOLE 1242 select SERIAL_EARLYCON 1243 1244config SERIAL_MPS2_UART 1245 bool "MPS2 UART port" 1246 depends on ARCH_MPS2 || COMPILE_TEST 1247 select SERIAL_CORE 1248 help 1249 This driver support the UART ports on ARM MPS2. 1250 1251config SERIAL_ARC 1252 tristate "ARC UART driver support" 1253 select SERIAL_CORE 1254 help 1255 Driver for on-chip UART for ARC(Synopsys) for the legacy 1256 FPGA Boards (ML50x/ARCAngel4) 1257 1258config SERIAL_ARC_CONSOLE 1259 bool "Console on ARC UART" 1260 depends on SERIAL_ARC=y 1261 select SERIAL_CORE_CONSOLE 1262 select SERIAL_EARLYCON 1263 help 1264 Enable system Console on ARC UART 1265 1266config SERIAL_ARC_NR_PORTS 1267 int "Number of ARC UART ports" 1268 depends on SERIAL_ARC 1269 range 1 3 1270 default "1" 1271 help 1272 Set this to the number of serial ports you want the driver 1273 to support. 1274 1275config SERIAL_RP2 1276 tristate "Comtrol RocketPort EXPRESS/INFINITY support" 1277 depends on PCI 1278 select SERIAL_CORE 1279 help 1280 This driver supports the Comtrol RocketPort EXPRESS and 1281 RocketPort INFINITY families of PCI/PCIe multiport serial adapters. 1282 These adapters use a "RocketPort 2" ASIC that is not compatible 1283 with the original RocketPort driver (CONFIG_ROCKETPORT). 1284 1285 To compile this driver as a module, choose M here: the 1286 module will be called rp2. 1287 1288 If you want to compile this driver into the kernel, say Y here. If 1289 you don't have a suitable RocketPort card installed, say N. 1290 1291config SERIAL_RP2_NR_UARTS 1292 int "Maximum number of RocketPort EXPRESS/INFINITY ports" 1293 depends on SERIAL_RP2 1294 default "32" 1295 help 1296 If multiple cards are present, the default limit of 32 ports may 1297 need to be increased. 1298 1299config SERIAL_FSL_LPUART 1300 tristate "Freescale lpuart serial port support" 1301 depends on HAS_DMA 1302 select SERIAL_CORE 1303 help 1304 Support for the on-chip lpuart on some Freescale SOCs. 1305 1306config SERIAL_FSL_LPUART_CONSOLE 1307 bool "Console on Freescale lpuart serial port" 1308 depends on SERIAL_FSL_LPUART=y 1309 select SERIAL_CORE_CONSOLE 1310 select SERIAL_EARLYCON 1311 help 1312 If you have enabled the lpuart serial port on the Freescale SoCs, 1313 you can make it the console by answering Y to this option. 1314 1315config SERIAL_FSL_LINFLEXUART 1316 tristate "Freescale LINFlexD UART serial port support" 1317 depends on PRINTK 1318 select SERIAL_CORE 1319 help 1320 Support for the on-chip LINFlexD UART on some Freescale SOCs. 1321 1322config SERIAL_FSL_LINFLEXUART_CONSOLE 1323 bool "Console on Freescale LINFlexD UART serial port" 1324 depends on SERIAL_FSL_LINFLEXUART=y 1325 select SERIAL_CORE_CONSOLE 1326 select SERIAL_EARLYCON 1327 help 1328 If you have enabled the LINFlexD UART serial port on the Freescale 1329 SoCs, you can make it the console by answering Y to this option. 1330 1331config SERIAL_CONEXANT_DIGICOLOR 1332 tristate "Conexant Digicolor CX92xxx USART serial port support" 1333 depends on OF 1334 select SERIAL_CORE 1335 help 1336 Support for the on-chip USART on Conexant Digicolor SoCs. 1337 1338config SERIAL_CONEXANT_DIGICOLOR_CONSOLE 1339 bool "Console on Conexant Digicolor serial port" 1340 depends on SERIAL_CONEXANT_DIGICOLOR=y 1341 select SERIAL_CORE_CONSOLE 1342 help 1343 If you have enabled the USART serial port on Conexant Digicolor 1344 SoCs, you can make it the console by answering Y to this option. 1345 1346config SERIAL_ST_ASC 1347 tristate "ST ASC serial port support" 1348 select SERIAL_CORE 1349 depends on ARM || COMPILE_TEST 1350 help 1351 This driver is for the on-chip Asynchronous Serial Controller on 1352 STMicroelectronics STi SoCs. 1353 ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality. 1354 It support all industry standard baud rates. 1355 1356 If unsure, say N. 1357 1358config SERIAL_ST_ASC_CONSOLE 1359 bool "Support for console on ST ASC" 1360 depends on SERIAL_ST_ASC=y 1361 select SERIAL_CORE_CONSOLE 1362 1363config SERIAL_MEN_Z135 1364 tristate "MEN 16z135 Support" 1365 select SERIAL_CORE 1366 depends on MCB 1367 help 1368 Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core 1369 on a MCB carrier. 1370 1371 This driver can also be build as a module. If so, the module will be called 1372 men_z135_uart.ko 1373 1374config SERIAL_SPRD 1375 tristate "Support for Spreadtrum serial" 1376 select SERIAL_CORE 1377 depends on COMMON_CLK 1378 help 1379 This enables the driver for the Spreadtrum's serial. 1380 1381config SERIAL_SPRD_CONSOLE 1382 bool "Spreadtrum UART console support" 1383 depends on SERIAL_SPRD=y 1384 select SERIAL_CORE_CONSOLE 1385 select SERIAL_EARLYCON 1386 help 1387 Support for early debug console using Spreadtrum's serial. This enables 1388 the console before standard serial driver is probed. This is enabled 1389 with "earlycon" on the kernel command line. The console is 1390 enabled when early_param is processed. 1391 1392config SERIAL_STM32 1393 tristate "STMicroelectronics STM32 serial port support" 1394 select SERIAL_CORE 1395 depends on ARCH_STM32 || COMPILE_TEST 1396 select SERIAL_MCTRL_GPIO if GPIOLIB 1397 help 1398 This driver is for the on-chip Serial Controller on 1399 STMicroelectronics STM32 MCUs. 1400 USART supports Rx & Tx functionality. 1401 It support all industry standard baud rates. 1402 1403 If unsure, say N. 1404 1405config SERIAL_STM32_CONSOLE 1406 bool "Support for console on STM32" 1407 depends on SERIAL_STM32=y 1408 select SERIAL_CORE_CONSOLE 1409 select SERIAL_EARLYCON 1410 1411config SERIAL_MVEBU_UART 1412 bool "Marvell EBU serial port support" 1413 depends on ARCH_MVEBU || COMPILE_TEST 1414 depends on COMMON_CLK 1415 select SERIAL_CORE 1416 help 1417 This driver is for Marvell EBU SoC's UART. If you have a machine 1418 based on the Armada-3700 SoC and wish to use the on-board serial 1419 port, 1420 say 'Y' here. 1421 Otherwise, say 'N'. 1422 1423config SERIAL_MVEBU_CONSOLE 1424 bool "Console on Marvell EBU serial port" 1425 depends on SERIAL_MVEBU_UART 1426 select SERIAL_CORE_CONSOLE 1427 select SERIAL_EARLYCON 1428 default y 1429 help 1430 Say 'Y' here if you wish to use Armada-3700 UART as the system console. 1431 (the system console is the device which receives all kernel messages 1432 and warnings and which allows logins in single user mode) 1433 Otherwise, say 'N'. 1434 1435config SERIAL_OWL 1436 tristate "Actions Semi Owl serial port support" 1437 depends on ARCH_ACTIONS || COMPILE_TEST 1438 select SERIAL_CORE 1439 help 1440 This driver is for Actions Semiconductor S500/S900 SoC's UART. 1441 Say 'Y' here if you wish to use the on-board serial port. 1442 Otherwise, say 'N'. 1443 1444config SERIAL_OWL_CONSOLE 1445 bool "Console on Actions Semi Owl serial port" 1446 depends on SERIAL_OWL=y 1447 select SERIAL_CORE_CONSOLE 1448 select SERIAL_EARLYCON 1449 default y 1450 help 1451 Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART 1452 as the system console. 1453 1454config SERIAL_RDA 1455 bool "RDA Micro serial port support" 1456 depends on ARCH_RDA || COMPILE_TEST 1457 select SERIAL_CORE 1458 help 1459 This driver is for RDA8810PL SoC's UART. 1460 Say 'Y' here if you wish to use the on-board serial port. 1461 Otherwise, say 'N'. 1462 1463config SERIAL_RDA_CONSOLE 1464 bool "Console on RDA Micro serial port" 1465 depends on SERIAL_RDA=y 1466 select SERIAL_CORE_CONSOLE 1467 select SERIAL_EARLYCON 1468 default y 1469 help 1470 Say 'Y' here if you wish to use the RDA8810PL UART as the system 1471 console. Only earlycon is implemented currently. 1472 1473config SERIAL_MILBEAUT_USIO 1474 tristate "Milbeaut USIO/UART serial port support" 1475 depends on ARCH_MILBEAUT || (COMPILE_TEST && OF) 1476 default ARCH_MILBEAUT 1477 select SERIAL_CORE 1478 help 1479 This selects the USIO/UART IP found in Socionext Milbeaut SoCs. 1480 1481config SERIAL_MILBEAUT_USIO_PORTS 1482 int "Maximum number of CSIO/UART ports (1-8)" 1483 range 1 8 1484 depends on SERIAL_MILBEAUT_USIO 1485 default "4" 1486 1487config SERIAL_MILBEAUT_USIO_CONSOLE 1488 bool "Support for console on MILBEAUT USIO/UART serial port" 1489 depends on SERIAL_MILBEAUT_USIO=y 1490 default y 1491 select SERIAL_CORE_CONSOLE 1492 select SERIAL_EARLYCON 1493 help 1494 Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut 1495 SoCs as the system console (the system console is the device which 1496 receives all kernel messages and warnings and which allows logins in 1497 single user mode). 1498 1499config SERIAL_LITEUART 1500 tristate "LiteUART serial port support" 1501 depends on HAS_IOMEM 1502 depends on OF 1503 depends on LITEX || COMPILE_TEST 1504 select SERIAL_CORE 1505 help 1506 This driver is for the FPGA-based LiteUART serial controller from LiteX 1507 SoC builder. 1508 1509 Say 'Y' or 'M' here if you wish to use the LiteUART serial controller. 1510 Otherwise, say 'N'. 1511 1512config SERIAL_LITEUART_MAX_PORTS 1513 int "Maximum number of LiteUART ports" 1514 depends on SERIAL_LITEUART 1515 default "1" 1516 help 1517 Set this to the maximum number of serial ports you want the driver 1518 to support. 1519 1520config SERIAL_LITEUART_CONSOLE 1521 bool "LiteUART serial port console support" 1522 depends on SERIAL_LITEUART=y 1523 select SERIAL_CORE_CONSOLE 1524 select SERIAL_EARLYCON 1525 help 1526 Say 'Y' or 'M' here if you wish to use the FPGA-based LiteUART serial 1527 controller from LiteX SoC builder as the system console 1528 (the system console is the device which receives all kernel messages 1529 and warnings and which allows logins in single user mode). 1530 Otherwise, say 'N'. 1531 1532config SERIAL_SUNPLUS 1533 tristate "Sunplus UART support" 1534 depends on ARCH_SUNPLUS || COMPILE_TEST 1535 select SERIAL_CORE 1536 help 1537 Select this option if you would like to use Sunplus serial port on 1538 Sunplus SoC SP7021. 1539 If you enable this option, Sunplus serial ports in the system will 1540 be registered as ttySUPx. 1541 This driver can also be built as a module. If so, the module will be 1542 called sunplus-uart. 1543 1544config SERIAL_SUNPLUS_CONSOLE 1545 bool "Console on Sunplus UART" 1546 depends on SERIAL_SUNPLUS 1547 select SERIAL_CORE_CONSOLE 1548 select SERIAL_EARLYCON 1549 help 1550 Select this option if you would like to use a Sunplus UART as the 1551 system console. 1552 Even if you say Y here, the currently visible virtual console 1553 (/dev/tty0) will still be used as the system console by default, but 1554 you can alter that using a kernel command line option such as 1555 "console=ttySUPx". 1556 1557config SERIAL_NUVOTON_MA35D1 1558 tristate "Nuvoton MA35D1 family UART support" 1559 depends on ARCH_MA35 || COMPILE_TEST 1560 select SERIAL_CORE 1561 help 1562 This driver supports Nuvoton MA35D1 family UART ports. If you would 1563 like to use them, you must answer Y or M to this option. Note that 1564 for use as console, it must be included in kernel and not as a 1565 module. If you enable this option, Ma35D1 serial ports in the system 1566 will be registered as ttyNVTx. 1567 1568config SERIAL_NUVOTON_MA35D1_CONSOLE 1569 bool "Console on a Nuvotn MA35D1 family UART port" 1570 depends on SERIAL_NUVOTON_MA35D1=y 1571 select SERIAL_CORE_CONSOLE 1572 help 1573 Select this options if you'd like to use the UART port0 of the 1574 Nuvoton MA35D1 family as a console. 1575 Even if you say Y here, the currently visible virtual console 1576 (/dev/tty0) will still be used as the system console by default, 1577 but you can alter that using a kernel command line option such as 1578 "console=ttyNVTx". 1579 1580endmenu 1581 1582config SERIAL_MCTRL_GPIO 1583 tristate 1584 1585source "drivers/tty/serial/pkvm-pl011/Kconfig" 1586