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 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 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 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 BCM283X_MU_SERIAL 512 bool "Support for BCM283x Mini-UART" 513 depends on DM_SERIAL && ARCH_BCM283X 514 default y 515 help 516 Select this to enable Mini-UART support on BCM283X family of SoCs. 517 518config BCM283X_PL011_SERIAL 519 bool "Support for BCM283x PL011 UART" 520 depends on PL01X_SERIAL && ARCH_BCM283X 521 default y 522 help 523 Select this to enable an overriding PL011 driver for BCM283X SoCs 524 that supports automatic disable, so that it only gets used when 525 the UART is actually muxed. 526 527config BCM6345_SERIAL 528 bool "Support for BCM6345 UART" 529 depends on DM_SERIAL 530 help 531 Select this to enable UART on BCM6345 SoCs. 532 533config FSL_LINFLEXUART 534 bool "Freescale Linflex UART support" 535 depends on DM_SERIAL 536 help 537 Select this to enable the Linflex serial module found on some 538 NXP SoCs like S32V234. 539 540config FSL_LPUART 541 bool "Freescale LPUART support" 542 help 543 Select this to enable a Low Power UART for Freescale VF610 and 544 QorIQ Layerscape devices. 545 546config MVEBU_A3700_UART 547 bool "UART support for Armada 3700" 548 default n 549 help 550 Choose this option to add support for UART driver on the Marvell 551 Armada 3700 SoC. The base address is configured via DT. 552 553config MXC_UART 554 bool "IMX serial port support" 555 depends on MX5 || MX6 556 help 557 If you have a machine based on a Motorola IMX CPU you 558 can enable its onboard serial port by enabling this option. 559 560config NULLDEV_SERIAL 561 bool "Null serial device" 562 help 563 Select this to enable null serial device support. A null serial 564 device merely acts as a placeholder for a serial device and does 565 nothing for all it's operation. 566 567config PIC32_SERIAL 568 bool "Support for Microchip PIC32 on-chip UART" 569 depends on DM_SERIAL && MACH_PIC32 570 default y 571 help 572 Support for the UART found on Microchip PIC32 SoC's. 573 574config SYS_NS16550 575 bool "NS16550 UART or compatible" 576 help 577 Support NS16550 UART or compatible. This can be enabled in the 578 device tree with the correct input clock frequency. If the input 579 clock frequency is not defined in the device tree, the macro 580 CONFIG_SYS_NS16550_CLK defined in a legacy board header file will 581 be used. It can be a constant or a function to get clock, eg, 582 get_serial_clock(). 583 584config INTEL_MID_SERIAL 585 bool "Intel MID platform UART support" 586 depends on DM_SERIAL && OF_CONTROL 587 depends on INTEL_MID 588 select SYS_NS16550 589 help 590 Select this to enable a UART for Intel MID platforms. 591 This uses the ns16550 driver as a library. 592 593config PL010_SERIAL 594 bool "ARM PL010 driver" 595 depends on !DM_SERIAL 596 help 597 Select this to enable a UART for platforms using PL010. 598 599config PL011_SERIAL 600 bool "ARM PL011 driver" 601 depends on !DM_SERIAL 602 help 603 Select this to enable a UART for platforms using PL011. 604 605config PL01X_SERIAL 606 bool "ARM PL010 and PL011 driver" 607 depends on DM_SERIAL 608 help 609 Select this to enable a UART for platforms using PL010 or PL011. 610 611config ROCKCHIP_SERIAL 612 bool "Rockchip on-chip UART support" 613 depends on DM_SERIAL && SPL_OF_PLATDATA 614 help 615 Select this to enable a debug UART for Rockchip devices when using 616 CONFIG_SPL_OF_PLATDATA (i.e. a compiled-in device tree replacemenmt). 617 This uses the ns16550 driver, converting the platdata from of-platdata 618 to the ns16550 format. 619 620config SANDBOX_SERIAL 621 bool "Sandbox UART support" 622 depends on SANDBOX 623 help 624 Select this to enable a seral UART for sandbox. This is required to 625 operate correctly, otherwise you will see no serial output from 626 sandbox. The emulated UART will display to the console and console 627 input will be fed into the UART. This allows you to interact with 628 U-Boot. 629 630 The operation of the console is controlled by the -t command-line 631 flag. In raw mode, U-Boot sees all characters from the terminal 632 before they are processed, including Ctrl-C. In cooked mode, Ctrl-C 633 is processed by the terminal, and terminates U-Boot. Valid options 634 are: 635 636 -t raw-with-sigs Raw mode, Ctrl-C will terminate U-Boot 637 -t raw Raw mode, Ctrl-C is processed by U-Boot 638 -t cooked Cooked mode, Ctrl-C terminates 639 640config SCIF_CONSOLE 641 bool "Renesas SCIF UART support" 642 depends on SH || ARCH_RMOBILE 643 help 644 Select this to enable Renesas SCIF UART. To operate serial ports 645 on systems with RCar or SH SoCs, say Y to this option. If unsure, 646 say N. 647 648config UNIPHIER_SERIAL 649 bool "Support for UniPhier on-chip UART" 650 depends on ARCH_UNIPHIER 651 default y 652 help 653 If you have a UniPhier based board and want to use the on-chip 654 serial ports, say Y to this option. If unsure, say N. 655 656config XILINX_UARTLITE 657 bool "Xilinx Uarlite support" 658 depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || 4xx) 659 help 660 If you have a Xilinx based board and want to use the uartlite 661 serial ports, say Y to this option. If unsure, say N. 662 663config MESON_SERIAL 664 bool "Support for Amlogic Meson UART" 665 depends on DM_SERIAL && ARCH_MESON 666 help 667 If you have an Amlogic Meson based board and want to use the on-chip 668 serial ports, say Y to this option. If unsure, say N. 669 670config MSM_SERIAL 671 bool "Qualcomm on-chip UART" 672 depends on DM_SERIAL 673 help 674 Support Data Mover UART used on Qualcomm Snapdragon SoCs. 675 It should support all Qualcomm devices with UARTDM version 1.4, 676 for example APQ8016 and MSM8916. 677 Single baudrate is supported in current implementation (115200). 678 679config OMAP_SERIAL 680 bool "Support for OMAP specific UART" 681 depends on DM_SERIAL 682 default y if (ARCH_OMAP2PLUS || ARCH_K3) 683 select SYS_NS16550 684 help 685 If you have an TI based SoC and want to use the on-chip serial 686 port, say Y to this option. If unsure say N. 687 688config OWL_SERIAL 689 bool "Actions Semi OWL UART" 690 depends on DM_SERIAL && ARCH_OWL 691 help 692 If you have a Actions Semi OWL based board and want to use the on-chip 693 serial port, say Y to this option. If unsure, say N. 694 Single baudrate is supported in current implementation (115200). 695 696config PXA_SERIAL 697 bool "PXA serial port support" 698 help 699 If you have a machine based on a Marvell XScale PXA2xx CPU you 700 can enable its onboard serial ports by enabling this option. 701 702config SIFIVE_SERIAL 703 bool "SiFive UART support" 704 depends on DM_SERIAL 705 help 706 This driver supports the SiFive UART. If unsure say N. 707 708config STI_ASC_SERIAL 709 bool "STMicroelectronics on-chip UART" 710 depends on DM_SERIAL && ARCH_STI 711 help 712 Select this to enable Asynchronous Serial Controller available 713 on STiH410 SoC. This is a basic implementation, it supports 714 following baudrate 9600, 19200, 38400, 57600 and 115200. 715 716config STM32_SERIAL 717 bool "STMicroelectronics STM32 SoCs on-chip UART" 718 depends on DM_SERIAL && (STM32F4 || STM32F7 || STM32H7 || ARCH_STM32MP) 719 help 720 If you have a machine based on a STM32 F4, F7, H7 or MP1 SOC 721 you can enable its onboard serial ports, say Y to this option. 722 If unsure, say N. 723 724config ZYNQ_SERIAL 725 bool "Cadence (Xilinx Zynq) UART support" 726 depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_ZYNQMP_R5) 727 help 728 This driver supports the Cadence UART. It is found e.g. in Xilinx 729 Zynq/ZynqMP. 730 731config MTK_SERIAL 732 bool "MediaTek High-speed UART support" 733 depends on DM_SERIAL 734 help 735 Select this to enable UART support for MediaTek High-speed UART 736 devices. This driver uses driver model and requires a device 737 tree binding to operate. 738 The High-speed UART is compatible with the ns16550a UART and have 739 its own high-speed registers. 740 741config MPC8XX_CONS 742 bool "Console driver for MPC8XX" 743 depends on MPC8xx 744 default y 745 746choice 747 prompt "Console port" 748 default 8xx_CONS_SMC1 749 depends on MPC8XX_CONS 750 help 751 Depending on board, select one serial port 752 (CONFIG_8xx_CONS_SMC1 or CONFIG_8xx_CONS_SMC2) 753 754config 8xx_CONS_SMC1 755 bool "SMC1" 756 757config 8xx_CONS_SMC2 758 bool "SMC2" 759 760endchoice 761 762config SYS_SMC_RXBUFLEN 763 int "Console Rx buffer length" 764 depends on MPC8XX_CONS 765 default 1 766 help 767 With CONFIG_SYS_SMC_RXBUFLEN it is possible to define 768 the maximum receive buffer length for the SMC. 769 This option is actual only for 8xx possible. 770 If using CONFIG_SYS_SMC_RXBUFLEN also CONFIG_SYS_MAXIDLE 771 must be defined, to setup the maximum idle timeout for 772 the SMC. 773 774config SYS_MAXIDLE 775 int "maximum idle timeout" 776 depends on MPC8XX_CONS 777 default 0 778 779config SYS_BRGCLK_PRESCALE 780 int "BRG Clock Prescale" 781 depends on MPC8XX_CONS 782 default 1 783 784config SYS_SDSR 785 hex "SDSR Value" 786 depends on MPC8XX_CONS 787 default 0x83 788 789config SYS_SDMR 790 hex "SDMR Value" 791 depends on MPC8XX_CONS 792 default 0 793 794endmenu 795