1# 2# Serial device configuration 3# 4 5menu "Serial drivers" 6 7config BAUDRATE 8 int "Default baudrate" 9 default 115200 10 help 11 Select a default baudrate, where "default" has a driver-specific 12 meaning of either setting the baudrate for the early debug UART 13 in the SPL stage (most drivers) or for choosing a default baudrate 14 in the absence of an environment setting (serial_mxc.c). 15 16config REQUIRE_SERIAL_CONSOLE 17 bool "Require a serial port for console" 18 # Running without a serial console is not supported by the 19 # non-dm serial code 20 depends on DM_SERIAL 21 default y 22 help 23 Require a serial port for the console, and panic if none is found 24 during serial port initialization (default y). Set this to n on 25 boards which have no debug serial port whatsoever. 26 27config SPECIFY_CONSOLE_INDEX 28 bool "Specify the port number used for console" 29 default y if !DM_SERIAL || (SPL && !SPL_DM_SERIAL) || \ 30 (TPL && !TPL_DM_SERIAL) 31 help 32 In various cases, we need to specify which of the UART devices that 33 a board or SoC has available are to be used for the console device 34 in U-Boot. 35 36config SERIAL_PRESENT 37 bool "Provide a serial driver" 38 depends on DM_SERIAL 39 default y 40 help 41 In very space-constrained devices even the full UART driver is too 42 large. In this case the debug UART can still be used in some cases. 43 This option enables the full UART in U-Boot, so if is it disabled, 44 the full UART driver will be omitted, thus saving space. 45 46config SPL_SERIAL_PRESENT 47 bool "Provide a serial driver in SPL" 48 depends on DM_SERIAL && SPL 49 default y 50 help 51 In very space-constrained devices even the full UART driver is too 52 large. In this case the debug UART can still be used in some cases. 53 This option enables the full UART in SPL, so if is it disabled, 54 the full UART driver will be omitted, thus saving space. 55 56config TPL_SERIAL_PRESENT 57 bool "Provide a serial driver in TPL" 58 depends on DM_SERIAL && TPL 59 default y 60 help 61 In very space-constrained devices even the full UART driver is too 62 large. In this case the debug UART can still be used in some cases. 63 This option enables the full UART in TPL, so if is it disabled, 64 the full UART driver will be omitted, thus saving space. 65 66# Logic to allow us to use the imply keyword to set what the default port 67# should be. The default is otherwise 1. 68config CONS_INDEX_0 69 bool 70 71config CONS_INDEX_2 72 bool 73 74config CONS_INDEX_3 75 bool 76 77config CONS_INDEX_4 78 bool 79 80config CONS_INDEX_5 81 bool 82 83config CONS_INDEX_6 84 bool 85 86config CONS_INDEX 87 int "UART used for console" 88 depends on SPECIFY_CONSOLE_INDEX 89 range 0 6 90 default 0 if CONS_INDEX_0 91 default 2 if CONS_INDEX_2 92 default 3 if CONS_INDEX_3 93 default 4 if CONS_INDEX_4 94 default 5 if CONS_INDEX_5 95 default 6 if CONS_INDEX_6 96 default 1 97 help 98 Set this to match the UART number of the serial console. 99 100config DM_SERIAL 101 bool "Enable Driver Model for serial drivers" 102 depends on DM 103 help 104 Enable driver model for serial. This replaces 105 drivers/serial/serial.c with the serial uclass, which 106 implements serial_putc() etc. The uclass interface is 107 defined in include/serial.h. 108 109config SERIAL_RX_BUFFER 110 bool "Enable RX buffer for serial input" 111 depends on DM_SERIAL 112 help 113 Enable RX buffer support for the serial driver. This enables 114 pasting longer strings, even when the RX FIFO of the UART is 115 not big enough (e.g. 16 bytes on the normal NS16550). 116 117config SERIAL_RX_BUFFER_SIZE 118 int "RX buffer size" 119 depends on SERIAL_RX_BUFFER 120 default 256 121 help 122 The size of the RX buffer (needs to be power of 2) 123 124config SERIAL_SEARCH_ALL 125 bool "Search for serial devices after default one failed" 126 depends on DM_SERIAL 127 help 128 The serial subsystem only searches for a single serial device 129 that was instantiated, but does not check whether it was probed 130 correctly. With this option set, we make successful probing 131 mandatory and search for fallback serial devices if the default 132 device does not work. 133 134 If unsure, say N. 135 136config SPL_DM_SERIAL 137 bool "Enable Driver Model for serial drivers in SPL" 138 depends on DM_SERIAL && SPL_DM 139 default y 140 help 141 Enable driver model for serial in SPL. This replaces 142 drivers/serial/serial.c with the serial uclass, which 143 implements serial_putc() etc. The uclass interface is 144 defined in include/serial.h. 145 146config TPL_DM_SERIAL 147 bool "Enable Driver Model for serial drivers in TPL" 148 depends on DM_SERIAL && TPL_DM 149 default y if TPL && DM_SERIAL 150 help 151 Enable driver model for serial in TPL. This replaces 152 drivers/serial/serial.c with the serial uclass, which 153 implements serial_putc() etc. The uclass interface is 154 defined in include/serial.h. 155 156config DEBUG_UART 157 bool "Enable an early debug UART for debugging" 158 help 159 The debug UART is intended for use very early in U-Boot to debug 160 problems when an ICE or other debug mechanism is not available. 161 162 To use it you should: 163 - Make sure your UART supports this interface 164 - Enable CONFIG_DEBUG_UART 165 - Enable the CONFIG for your UART to tell it to provide this interface 166 (e.g. CONFIG_DEBUG_UART_NS16550) 167 - Define the required settings as needed (see below) 168 - Call debug_uart_init() before use 169 - Call debug_uart_putc() to output a character 170 171 Depending on your platform it may be possible to use this UART before 172 a stack is available. 173 174 If your UART does not support this interface you can probably add 175 support quite easily. Remember that you cannot use driver model and 176 it is preferred to use no stack. 177 178 You must not use this UART once driver model is working and the 179 serial drivers are up and running (done in serial_init()). Otherwise 180 the drivers may conflict and you will get strange output. 181 182choice 183 prompt "Select which UART will provide the debug UART" 184 depends on DEBUG_UART 185 default DEBUG_UART_NS16550 186 187config DEBUG_UART_ALTERA_JTAGUART 188 bool "Altera JTAG UART" 189 help 190 Select this to enable a debug UART using the altera_jtag_uart driver. 191 You will need to provide parameters to make this work. The driver will 192 be available until the real driver model serial is running. 193 194config DEBUG_UART_ALTERA_UART 195 bool "Altera UART" 196 help 197 Select this to enable a debug UART using the altera_uart driver. 198 You will need to provide parameters to make this work. The driver will 199 be available until the real driver model serial is running. 200 201config DEBUG_UART_AR933X 202 bool "QCA/Atheros ar933x" 203 depends on AR933X_UART 204 help 205 Select this to enable a debug UART using the ar933x uart driver. 206 You will need to provide parameters to make this work. The 207 driver will be available until the real driver model serial is 208 running. 209 210config DEBUG_ARC_SERIAL 211 bool "ARC UART" 212 depends on ARC_SERIAL 213 help 214 Select this to enable a debug UART using the ARC UART driver. 215 You will need to provide parameters to make this work. The 216 driver will be available until the real driver model serial is 217 running. 218 219config DEBUG_UART_ATMEL 220 bool "Atmel USART" 221 help 222 Select this to enable a debug UART using the atmel usart driver. You 223 will need to provide parameters to make this work. The driver will 224 be available until the real driver-model serial is running. 225 226config DEBUG_UART_BCM6345 227 bool "BCM6345 UART" 228 depends on BCM6345_SERIAL 229 help 230 Select this to enable a debug UART on BCM6345 SoCs. You 231 will need to provide parameters to make this work. The driver will 232 be available until the real driver model serial is running. 233 234config DEBUG_UART_NS16550 235 bool "ns16550" 236 help 237 Select this to enable a debug UART using the ns16550 driver. You 238 will need to provide parameters to make this work. The driver will 239 be available until the real driver model serial is running. 240 241config DEBUG_EFI_CONSOLE 242 bool "EFI" 243 depends on EFI_APP 244 help 245 Select this to enable a debug console which calls back to EFI to 246 output to the console. This can be useful for early debugging of 247 U-Boot when running on top of EFI (Extensive Firmware Interface). 248 This is a type of BIOS used by PCs. 249 250config DEBUG_UART_S5P 251 bool "Samsung S5P" 252 help 253 Select this to enable a debug UART using the serial_s5p driver. You 254 will need to provide parameters to make this work. The driver will 255 be available until the real driver-model serial is running. 256 257config DEBUG_UART_MESON 258 bool "Amlogic Meson" 259 depends on MESON_SERIAL 260 help 261 Select this to enable a debug UART using the serial_meson driver. You 262 will need to provide parameters to make this work. The driver will 263 be available until the real driver-model serial is running. 264 265config DEBUG_UART_UARTLITE 266 bool "Xilinx Uartlite" 267 help 268 Select this to enable a debug UART using the serial_uartlite driver. 269 You will need to provide parameters to make this work. The driver will 270 be available until the real driver-model serial is running. 271 272config DEBUG_UART_ARM_DCC 273 bool "ARM DCC" 274 help 275 Select this to enable a debug UART using the ARM JTAG DCC port. 276 The DCC port can be used for very early debugging and doesn't require 277 any additional setting like address/baudrate/clock. On systems without 278 any serial interface this is the easiest way how to get console. 279 Every ARM core has own DCC port which is the part of debug interface. 280 This port is available at least on ARMv6, ARMv7, ARMv8 and XScale 281 architectures. 282 283config DEBUG_MVEBU_A3700_UART 284 bool "Marvell Armada 3700" 285 help 286 Select this to enable a debug UART using the serial_mvebu driver. You 287 will need to provide parameters to make this work. The driver will 288 be available until the real driver-model serial is running. 289 290config DEBUG_UART_ZYNQ 291 bool "Xilinx Zynq" 292 help 293 Select this to enable a debug UART using the serial_zynq driver. You 294 will need to provide parameters to make this work. The driver will 295 be available until the real driver-model serial is running. 296 297config DEBUG_UART_APBUART 298 depends on LEON3 299 bool "Gaisler APBUART" 300 help 301 Select this to enable a debug UART using the serial_leon3 driver. You 302 will need to provide parameters to make this work. The driver will 303 be available until the real driver model serial is running. 304 305config DEBUG_UART_PL010 306 bool "pl010" 307 help 308 Select this to enable a debug UART using the pl01x driver with the 309 PL010 UART type. You will need to provide parameters to make this 310 work. The driver will be available until the real driver model 311 serial is running. 312 313config DEBUG_UART_PL011 314 bool "pl011" 315 help 316 Select this to enable a debug UART using the pl01x driver with the 317 PL011 UART type. You will need to provide parameters to make this 318 work. The driver will be available until the real driver model 319 serial is running. 320 321config DEBUG_UART_PIC32 322 bool "Microchip PIC32" 323 depends on PIC32_SERIAL 324 help 325 Select this to enable a debug UART using the serial_pic32 driver. You 326 will need to provide parameters to make this work. The driver will 327 be available until the real driver model serial is running. 328 329config DEBUG_UART_MXC 330 bool "IMX Serial port" 331 depends on MXC_UART 332 help 333 Select this to enable a debug UART using the serial_mxc driver. You 334 will need to provide parameters to make this work. The driver will 335 be available until the real driver model serial is running. 336 337config DEBUG_UART_SANDBOX 338 bool "sandbox" 339 depends on SANDBOX_SERIAL 340 help 341 Select this to enable the debug UART using the sandbox driver. This 342 provides basic serial output from the console without needing to 343 start up driver model. The driver will be available until the real 344 driver model serial is running. 345 346config DEBUG_UART_SIFIVE 347 bool "SiFive UART" 348 help 349 Select this to enable a debug UART using the serial_sifive driver. You 350 will need to provide parameters to make this work. The driver will 351 be available until the real driver-model serial is running. 352 353config DEBUG_UART_STM32 354 bool "STMicroelectronics STM32" 355 depends on STM32_SERIAL 356 help 357 Select this to enable a debug UART using the serial_stm32 driver 358 You will need to provide parameters to make this work. 359 The driver will be available until the real driver model 360 serial is running. 361 362config DEBUG_UART_UNIPHIER 363 bool "UniPhier on-chip UART" 364 depends on ARCH_UNIPHIER 365 help 366 Select this to enable a debug UART using the UniPhier on-chip UART. 367 You will need to provide DEBUG_UART_BASE to make this work. The 368 driver will be available until the real driver-model serial is 369 running. 370 371config DEBUG_UART_OMAP 372 bool "OMAP uart" 373 help 374 Select this to enable a debug UART using the omap ns16550 driver. 375 You will need to provide parameters to make this work. The driver 376 will be available until the real driver model serial is running. 377 378config DEBUG_UART_MTK 379 bool "MediaTek High-speed UART" 380 depends on MTK_SERIAL 381 help 382 Select this to enable a debug UART using the MediaTek High-speed 383 UART driver. 384 You will need to provide parameters to make this work. The 385 driver will be available until the real driver model serial is 386 running. 387 388endchoice 389 390config DEBUG_UART_BASE 391 hex "Base address of UART" 392 depends on DEBUG_UART 393 default 0 if DEBUG_UART_SANDBOX 394 help 395 This is the base address of your UART for memory-mapped UARTs. 396 397 A default should be provided by your board, but if not you will need 398 to use the correct value here. 399 400config DEBUG_UART_CLOCK 401 int "UART input clock" 402 depends on DEBUG_UART 403 default 0 if DEBUG_UART_SANDBOX 404 help 405 The UART input clock determines the speed of the internal UART 406 circuitry. The baud rate is derived from this by dividing the input 407 clock down. 408 409 A default should be provided by your board, but if not you will need 410 to use the correct value here. 411 412config DEBUG_UART_SHIFT 413 int "UART register shift" 414 depends on DEBUG_UART 415 default 0 if DEBUG_UART 416 help 417 Some UARTs (notably ns16550) support different register layouts 418 where the registers are spaced either as bytes, words or some other 419 value. Use this value to specify the shift to use, where 0=byte 420 registers, 2=32-bit word registers, etc. 421 422config DEBUG_UART_BOARD_INIT 423 bool "Enable board-specific debug UART init" 424 depends on DEBUG_UART 425 help 426 Some boards need to set things up before the debug UART can be used. 427 On these boards a call to debug_uart_init() is insufficient. When 428 this option is enabled, the function board_debug_uart_init() will 429 be called when debug_uart_init() is called. You can put any code 430 here that is needed to set up the UART ready for use, such as set 431 pin multiplexing or enable clocks. 432 433config DEBUG_UART_ANNOUNCE 434 bool "Show a message when the debug UART starts up" 435 depends on DEBUG_UART 436 help 437 Enable this option to show a message when the debug UART is ready 438 for use. You will see a message like "<debug_uart> " as soon as 439 U-Boot has the UART ready for use (i.e. your code calls 440 debug_uart_init()). This can be useful just as a check that 441 everything is working. 442 443config DEBUG_UART_SKIP_INIT 444 bool "Skip UART initialization" 445 depends on DEBUG_UART 446 help 447 Select this if the UART you want to use for debug output is already 448 initialized by the time U-Boot starts its execution. 449 450config DEBUG_UART_NS16550_CHECK_ENABLED 451 bool "Check if UART is enabled on output" 452 depends on DEBUG_UART 453 depends on DEBUG_UART_NS16550 454 help 455 Select this if puts()/putc() might be called before the debug UART 456 has been initialized. If this is disabled, putc() might sit in a 457 tight loop if it is called before debug_uart_init() has been called. 458 459 Note that this does not work for every ns16550-compatible UART and 460 so has to be enabled carefully or you might notice lost characters. 461 462config ALTERA_JTAG_UART 463 bool "Altera JTAG UART support" 464 depends on DM_SERIAL 465 help 466 Select this to enable an JTAG UART for Altera devices.The JTAG UART 467 core implements a method to communicate serial character streams 468 between a host PC and a Qsys system on an Altera FPGA. Please find 469 details on the "Embedded Peripherals IP User Guide" of Altera. 470 471config ALTERA_JTAG_UART_BYPASS 472 bool "Bypass output when no connection" 473 depends on ALTERA_JTAG_UART 474 help 475 Bypass console output and keep going even if there is no JTAG 476 terminal connection with the host. The console output will resume 477 once the JTAG terminal is connected. Without the bypass, the console 478 output will wait forever until a JTAG terminal is connected. If you 479 not are sure, say Y. 480 481config ALTERA_UART 482 bool "Altera UART support" 483 depends on DM_SERIAL 484 help 485 Select this to enable an UART for Altera devices. Please find 486 details on the "Embedded Peripherals IP User Guide" of Altera. 487 488config AR933X_UART 489 bool "QCA/Atheros ar933x UART support" 490 depends on DM_SERIAL && SOC_AR933X 491 help 492 Select this to enable UART support for QCA/Atheros ar933x 493 devices. This driver uses driver model and requires a device 494 tree binding to operate, please refer to the document at 495 doc/device-tree-bindings/serial/qca,ar9330-uart.txt. 496 497config ARC_SERIAL 498 bool "ARC UART support" 499 depends on DM_SERIAL 500 help 501 Select this to enable support for ARC UART now typically 502 only used in Synopsys DesignWare ARC simulators like nSIM. 503 504config ATMEL_USART 505 bool "Atmel USART support" 506 help 507 Select this to enable USART support for Atmel SoCs. It can be 508 configured in the device tree, and input clock frequency can 509 be got from the clk node. 510 511config SPL_UART_CLOCK 512 int "SPL fixed UART input clock" 513 depends on ATMEL_USART && SPL && !SPL_CLK 514 default 132096000 if ARCH_AT91 515 help 516 Provide a fixed clock value as input to the UART controller. This 517 might be needed on platforms which can't enable CONFIG_SPL_CLK 518 because of SPL image size restrictions. 519 520config BCM283X_MU_SERIAL 521 bool "Support for BCM283x Mini-UART" 522 depends on DM_SERIAL && ARCH_BCM283X 523 default y 524 help 525 Select this to enable Mini-UART support on BCM283X family of SoCs. 526 527config BCM283X_PL011_SERIAL 528 bool "Support for BCM283x PL011 UART" 529 depends on PL01X_SERIAL && ARCH_BCM283X 530 default y 531 help 532 Select this to enable an overriding PL011 driver for BCM283X SoCs 533 that supports automatic disable, so that it only gets used when 534 the UART is actually muxed. 535 536config BCM6345_SERIAL 537 bool "Support for BCM6345 UART" 538 depends on DM_SERIAL 539 help 540 Select this to enable UART on BCM6345 SoCs. 541 542config FSL_LINFLEXUART 543 bool "Freescale Linflex UART support" 544 depends on DM_SERIAL 545 help 546 Select this to enable the Linflex serial module found on some 547 NXP SoCs like S32V234. 548 549config FSL_LPUART 550 bool "Freescale LPUART support" 551 help 552 Select this to enable a Low Power UART for Freescale VF610 and 553 QorIQ Layerscape devices. 554 555config MVEBU_A3700_UART 556 bool "UART support for Armada 3700" 557 default n 558 help 559 Choose this option to add support for UART driver on the Marvell 560 Armada 3700 SoC. The base address is configured via DT. 561 562config MCFUART 563 bool "Freescale ColdFire UART support" 564 help 565 Choose this option to add support for UART driver on the ColdFire 566 SoC's family. The serial communication channel provides a full-duplex 567 asynchronous/synchronous receiver and transmitter deriving an 568 operating frequency from the internal bus clock or an external clock. 569 570config MXC_UART 571 bool "IMX serial port support" 572 depends on MX5 || MX6 || MX7 || IMX8M 573 help 574 If you have a machine based on a Motorola IMX CPU you 575 can enable its onboard serial port by enabling this option. 576 577config NULLDEV_SERIAL 578 bool "Null serial device" 579 help 580 Select this to enable null serial device support. A null serial 581 device merely acts as a placeholder for a serial device and does 582 nothing for all it's operation. 583 584config PIC32_SERIAL 585 bool "Support for Microchip PIC32 on-chip UART" 586 depends on DM_SERIAL && MACH_PIC32 587 default y 588 help 589 Support for the UART found on Microchip PIC32 SoC's. 590 591config SYS_NS16550 592 bool "NS16550 UART or compatible" 593 help 594 Support NS16550 UART or compatible. This can be enabled in the 595 device tree with the correct input clock frequency. If the input 596 clock frequency is not defined in the device tree, the macro 597 CONFIG_SYS_NS16550_CLK defined in a legacy board header file will 598 be used. It can be a constant or a function to get clock, eg, 599 get_serial_clock(). 600 601config INTEL_MID_SERIAL 602 bool "Intel MID platform UART support" 603 depends on DM_SERIAL && OF_CONTROL 604 depends on INTEL_MID 605 select SYS_NS16550 606 help 607 Select this to enable a UART for Intel MID platforms. 608 This uses the ns16550 driver as a library. 609 610config PL010_SERIAL 611 bool "ARM PL010 driver" 612 depends on !DM_SERIAL 613 help 614 Select this to enable a UART for platforms using PL010. 615 616config PL011_SERIAL 617 bool "ARM PL011 driver" 618 depends on !DM_SERIAL 619 help 620 Select this to enable a UART for platforms using PL011. 621 622config PL01X_SERIAL 623 bool "ARM PL010 and PL011 driver" 624 depends on DM_SERIAL 625 help 626 Select this to enable a UART for platforms using PL010 or PL011. 627 628config ROCKCHIP_SERIAL 629 bool "Rockchip on-chip UART support" 630 depends on DM_SERIAL && SPL_OF_PLATDATA 631 help 632 Select this to enable a debug UART for Rockchip devices when using 633 CONFIG_SPL_OF_PLATDATA (i.e. a compiled-in device tree replacemenmt). 634 This uses the ns16550 driver, converting the platdata from of-platdata 635 to the ns16550 format. 636 637config SANDBOX_SERIAL 638 bool "Sandbox UART support" 639 depends on SANDBOX 640 help 641 Select this to enable a seral UART for sandbox. This is required to 642 operate correctly, otherwise you will see no serial output from 643 sandbox. The emulated UART will display to the console and console 644 input will be fed into the UART. This allows you to interact with 645 U-Boot. 646 647 The operation of the console is controlled by the -t command-line 648 flag. In raw mode, U-Boot sees all characters from the terminal 649 before they are processed, including Ctrl-C. In cooked mode, Ctrl-C 650 is processed by the terminal, and terminates U-Boot. Valid options 651 are: 652 653 -t raw-with-sigs Raw mode, Ctrl-C will terminate U-Boot 654 -t raw Raw mode, Ctrl-C is processed by U-Boot 655 -t cooked Cooked mode, Ctrl-C terminates 656 657config SCIF_CONSOLE 658 bool "Renesas SCIF UART support" 659 depends on SH || ARCH_RMOBILE 660 help 661 Select this to enable Renesas SCIF UART. To operate serial ports 662 on systems with RCar or SH SoCs, say Y to this option. If unsure, 663 say N. 664 665config UNIPHIER_SERIAL 666 bool "Support for UniPhier on-chip UART" 667 depends on ARCH_UNIPHIER 668 default y 669 help 670 If you have a UniPhier based board and want to use the on-chip 671 serial ports, say Y to this option. If unsure, say N. 672 673config XILINX_UARTLITE 674 bool "Xilinx Uarlite support" 675 depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || 4xx) 676 help 677 If you have a Xilinx based board and want to use the uartlite 678 serial ports, say Y to this option. If unsure, say N. 679 680config MESON_SERIAL 681 bool "Support for Amlogic Meson UART" 682 depends on DM_SERIAL && ARCH_MESON 683 help 684 If you have an Amlogic Meson based board and want to use the on-chip 685 serial ports, say Y to this option. If unsure, say N. 686 687config MSM_SERIAL 688 bool "Qualcomm on-chip UART" 689 depends on DM_SERIAL 690 help 691 Support Data Mover UART used on Qualcomm Snapdragon SoCs. 692 It should support all Qualcomm devices with UARTDM version 1.4, 693 for example APQ8016 and MSM8916. 694 Single baudrate is supported in current implementation (115200). 695 696config OMAP_SERIAL 697 bool "Support for OMAP specific UART" 698 depends on DM_SERIAL 699 default y if (ARCH_OMAP2PLUS || ARCH_K3) 700 select SYS_NS16550 701 help 702 If you have an TI based SoC and want to use the on-chip serial 703 port, say Y to this option. If unsure say N. 704 705config OWL_SERIAL 706 bool "Actions Semi OWL UART" 707 depends on DM_SERIAL && ARCH_OWL 708 help 709 If you have a Actions Semi OWL based board and want to use the on-chip 710 serial port, say Y to this option. If unsure, say N. 711 Single baudrate is supported in current implementation (115200). 712 713config PXA_SERIAL 714 bool "PXA serial port support" 715 help 716 If you have a machine based on a Marvell XScale PXA2xx CPU you 717 can enable its onboard serial ports by enabling this option. 718 719config SIFIVE_SERIAL 720 bool "SiFive UART support" 721 depends on DM_SERIAL 722 help 723 This driver supports the SiFive UART. If unsure say N. 724 725config STI_ASC_SERIAL 726 bool "STMicroelectronics on-chip UART" 727 depends on DM_SERIAL && ARCH_STI 728 help 729 Select this to enable Asynchronous Serial Controller available 730 on STiH410 SoC. This is a basic implementation, it supports 731 following baudrate 9600, 19200, 38400, 57600 and 115200. 732 733config STM32_SERIAL 734 bool "STMicroelectronics STM32 SoCs on-chip UART" 735 depends on DM_SERIAL && (STM32F4 || STM32F7 || STM32H7 || ARCH_STM32MP) 736 help 737 If you have a machine based on a STM32 F4, F7, H7 or MP1 SOC 738 you can enable its onboard serial ports, say Y to this option. 739 If unsure, say N. 740 741config ZYNQ_SERIAL 742 bool "Cadence (Xilinx Zynq) UART support" 743 depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_ZYNQMP_R5) 744 help 745 This driver supports the Cadence UART. It is found e.g. in Xilinx 746 Zynq/ZynqMP. 747 748config MTK_SERIAL 749 bool "MediaTek High-speed UART support" 750 depends on DM_SERIAL 751 help 752 Select this to enable UART support for MediaTek High-speed UART 753 devices. This driver uses driver model and requires a device 754 tree binding to operate. 755 The High-speed UART is compatible with the ns16550a UART and have 756 its own high-speed registers. 757 758config MPC8XX_CONS 759 bool "Console driver for MPC8XX" 760 depends on MPC8xx 761 default y 762 763choice 764 prompt "Console port" 765 default 8xx_CONS_SMC1 766 depends on MPC8XX_CONS 767 help 768 Depending on board, select one serial port 769 (CONFIG_8xx_CONS_SMC1 or CONFIG_8xx_CONS_SMC2) 770 771config 8xx_CONS_SMC1 772 bool "SMC1" 773 774config 8xx_CONS_SMC2 775 bool "SMC2" 776 777endchoice 778 779config SYS_SMC_RXBUFLEN 780 int "Console Rx buffer length" 781 depends on MPC8XX_CONS 782 default 1 783 help 784 With CONFIG_SYS_SMC_RXBUFLEN it is possible to define 785 the maximum receive buffer length for the SMC. 786 This option is actual only for 8xx possible. 787 If using CONFIG_SYS_SMC_RXBUFLEN also CONFIG_SYS_MAXIDLE 788 must be defined, to setup the maximum idle timeout for 789 the SMC. 790 791config SYS_MAXIDLE 792 int "maximum idle timeout" 793 depends on MPC8XX_CONS 794 default 0 795 796config SYS_BRGCLK_PRESCALE 797 int "BRG Clock Prescale" 798 depends on MPC8XX_CONS 799 default 1 800 801config SYS_SDSR 802 hex "SDSR Value" 803 depends on MPC8XX_CONS 804 default 0x83 805 806config SYS_SDMR 807 hex "SDMR Value" 808 depends on MPC8XX_CONS 809 default 0 810 811endmenu 812