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_STM32 347 bool "STMicroelectronics STM32" 348 depends on STM32_SERIAL 349 help 350 Select this to enable a debug UART using the serial_stm32 driver 351 You will need to provide parameters to make this work. 352 The driver will be available until the real driver model 353 serial is running. 354 355config DEBUG_UART_UNIPHIER 356 bool "UniPhier on-chip UART" 357 depends on ARCH_UNIPHIER 358 help 359 Select this to enable a debug UART using the UniPhier on-chip UART. 360 You will need to provide DEBUG_UART_BASE to make this work. The 361 driver will be available until the real driver-model serial is 362 running. 363 364config DEBUG_UART_OMAP 365 bool "OMAP uart" 366 help 367 Select this to enable a debug UART using the omap ns16550 driver. 368 You will need to provide parameters to make this work. The driver 369 will be available until the real driver model serial is running. 370 371endchoice 372 373config DEBUG_UART_BASE 374 hex "Base address of UART" 375 depends on DEBUG_UART 376 default 0 if DEBUG_UART_SANDBOX 377 help 378 This is the base address of your UART for memory-mapped UARTs. 379 380 A default should be provided by your board, but if not you will need 381 to use the correct value here. 382 383config DEBUG_UART_CLOCK 384 int "UART input clock" 385 depends on DEBUG_UART 386 default 0 if DEBUG_UART_SANDBOX 387 help 388 The UART input clock determines the speed of the internal UART 389 circuitry. The baud rate is derived from this by dividing the input 390 clock down. 391 392 A default should be provided by your board, but if not you will need 393 to use the correct value here. 394 395config DEBUG_UART_SHIFT 396 int "UART register shift" 397 depends on DEBUG_UART 398 default 0 if DEBUG_UART 399 help 400 Some UARTs (notably ns16550) support different register layouts 401 where the registers are spaced either as bytes, words or some other 402 value. Use this value to specify the shift to use, where 0=byte 403 registers, 2=32-bit word registers, etc. 404 405config DEBUG_UART_BOARD_INIT 406 bool "Enable board-specific debug UART init" 407 depends on DEBUG_UART 408 help 409 Some boards need to set things up before the debug UART can be used. 410 On these boards a call to debug_uart_init() is insufficient. When 411 this option is enabled, the function board_debug_uart_init() will 412 be called when debug_uart_init() is called. You can put any code 413 here that is needed to set up the UART ready for use, such as set 414 pin multiplexing or enable clocks. 415 416config DEBUG_UART_ANNOUNCE 417 bool "Show a message when the debug UART starts up" 418 depends on DEBUG_UART 419 help 420 Enable this option to show a message when the debug UART is ready 421 for use. You will see a message like "<debug_uart> " as soon as 422 U-Boot has the UART ready for use (i.e. your code calls 423 debug_uart_init()). This can be useful just as a check that 424 everything is working. 425 426config DEBUG_UART_SKIP_INIT 427 bool "Skip UART initialization" 428 help 429 Select this if the UART you want to use for debug output is already 430 initialized by the time U-Boot starts its execution. 431 432config ALTERA_JTAG_UART 433 bool "Altera JTAG UART support" 434 depends on DM_SERIAL 435 help 436 Select this to enable an JTAG UART for Altera devices.The JTAG UART 437 core implements a method to communicate serial character streams 438 between a host PC and a Qsys system on an Altera FPGA. Please find 439 details on the "Embedded Peripherals IP User Guide" of Altera. 440 441config ALTERA_JTAG_UART_BYPASS 442 bool "Bypass output when no connection" 443 depends on ALTERA_JTAG_UART 444 help 445 Bypass console output and keep going even if there is no JTAG 446 terminal connection with the host. The console output will resume 447 once the JTAG terminal is connected. Without the bypass, the console 448 output will wait forever until a JTAG terminal is connected. If you 449 not are sure, say Y. 450 451config ALTERA_UART 452 bool "Altera UART support" 453 depends on DM_SERIAL 454 help 455 Select this to enable an UART for Altera devices. Please find 456 details on the "Embedded Peripherals IP User Guide" of Altera. 457 458config AR933X_UART 459 bool "QCA/Atheros ar933x UART support" 460 depends on DM_SERIAL && SOC_AR933X 461 help 462 Select this to enable UART support for QCA/Atheros ar933x 463 devices. This driver uses driver model and requires a device 464 tree binding to operate, please refer to the document at 465 doc/device-tree-bindings/serial/qca,ar9330-uart.txt. 466 467config ARC_SERIAL 468 bool "ARC UART support" 469 depends on DM_SERIAL 470 help 471 Select this to enable support for ARC UART now typically 472 only used in Synopsys DesignWare ARC simulators like nSIM. 473 474config ATMEL_USART 475 bool "Atmel USART support" 476 help 477 Select this to enable USART support for Atmel SoCs. It can be 478 configured in the device tree, and input clock frequency can 479 be got from the clk node. 480 481config BCM283X_MU_SERIAL 482 bool "Support for BCM283x Mini-UART" 483 depends on DM_SERIAL && ARCH_BCM283X 484 default y 485 help 486 Select this to enable Mini-UART support on BCM283X family of SoCs. 487 488config BCM283X_PL011_SERIAL 489 bool "Support for BCM283x PL011 UART" 490 depends on PL01X_SERIAL && ARCH_BCM283X 491 default y 492 help 493 Select this to enable an overriding PL011 driver for BCM283X SoCs 494 that supports automatic disable, so that it only gets used when 495 the UART is actually muxed. 496 497config BCM6345_SERIAL 498 bool "Support for BCM6345 UART" 499 depends on DM_SERIAL && ARCH_BMIPS 500 help 501 Select this to enable UART on BCM6345 SoCs. 502 503config FSL_LINFLEXUART 504 bool "Freescale Linflex UART support" 505 depends on DM_SERIAL 506 help 507 Select this to enable the Linflex serial module found on some 508 NXP SoCs like S32V234. 509 510config FSL_LPUART 511 bool "Freescale LPUART support" 512 help 513 Select this to enable a Low Power UART for Freescale VF610 and 514 QorIQ Layerscape devices. 515 516config MVEBU_A3700_UART 517 bool "UART support for Armada 3700" 518 default n 519 help 520 Choose this option to add support for UART driver on the Marvell 521 Armada 3700 SoC. The base address is configured via DT. 522 523config MXC_UART 524 bool "IMX serial port support" 525 depends on MX5 || MX6 526 help 527 If you have a machine based on a Motorola IMX CPU you 528 can enable its onboard serial port by enabling this option. 529 530config NULLDEV_SERIAL 531 bool "Null serial device" 532 help 533 Select this to enable null serial device support. A null serial 534 device merely acts as a placeholder for a serial device and does 535 nothing for all it's operation. 536 537config PIC32_SERIAL 538 bool "Support for Microchip PIC32 on-chip UART" 539 depends on DM_SERIAL && MACH_PIC32 540 default y 541 help 542 Support for the UART found on Microchip PIC32 SoC's. 543 544config SYS_NS16550 545 bool "NS16550 UART or compatible" 546 help 547 Support NS16550 UART or compatible. This can be enabled in the 548 device tree with the correct input clock frequency. If the input 549 clock frequency is not defined in the device tree, the macro 550 CONFIG_SYS_NS16550_CLK defined in a legacy board header file will 551 be used. It can be a constant or a function to get clock, eg, 552 get_serial_clock(). 553 554config INTEL_MID_SERIAL 555 bool "Intel MID platform UART support" 556 depends on DM_SERIAL && OF_CONTROL 557 depends on INTEL_MID 558 select SYS_NS16550 559 help 560 Select this to enable a UART for Intel MID platforms. 561 This uses the ns16550 driver as a library. 562 563config PL010_SERIAL 564 bool "ARM PL010 driver" 565 depends on !DM_SERIAL 566 help 567 Select this to enable a UART for platforms using PL010. 568 569config PL011_SERIAL 570 bool "ARM PL011 driver" 571 depends on !DM_SERIAL 572 help 573 Select this to enable a UART for platforms using PL011. 574 575config PL01X_SERIAL 576 bool "ARM PL010 and PL011 driver" 577 depends on DM_SERIAL 578 help 579 Select this to enable a UART for platforms using PL010 or PL011. 580 581config ROCKCHIP_SERIAL 582 bool "Rockchip on-chip UART support" 583 depends on DM_SERIAL && SPL_OF_PLATDATA 584 help 585 Select this to enable a debug UART for Rockchip devices when using 586 CONFIG_SPL_OF_PLATDATA (i.e. a compiled-in device tree replacemenmt). 587 This uses the ns16550 driver, converting the platdata from of-platdata 588 to the ns16550 format. 589 590config SANDBOX_SERIAL 591 bool "Sandbox UART support" 592 depends on SANDBOX 593 help 594 Select this to enable a seral UART for sandbox. This is required to 595 operate correctly, otherwise you will see no serial output from 596 sandbox. The emulated UART will display to the console and console 597 input will be fed into the UART. This allows you to interact with 598 U-Boot. 599 600 The operation of the console is controlled by the -t command-line 601 flag. In raw mode, U-Boot sees all characters from the terminal 602 before they are processed, including Ctrl-C. In cooked mode, Ctrl-C 603 is processed by the terminal, and terminates U-Boot. Valid options 604 are: 605 606 -t raw-with-sigs Raw mode, Ctrl-C will terminate U-Boot 607 -t raw Raw mode, Ctrl-C is processed by U-Boot 608 -t cooked Cooked mode, Ctrl-C terminates 609 610config SCIF_CONSOLE 611 bool "Renesas SCIF UART support" 612 depends on SH || ARCH_RMOBILE 613 help 614 Select this to enable Renesas SCIF UART. To operate serial ports 615 on systems with RCar or SH SoCs, say Y to this option. If unsure, 616 say N. 617 618config UNIPHIER_SERIAL 619 bool "Support for UniPhier on-chip UART" 620 depends on ARCH_UNIPHIER 621 default y 622 help 623 If you have a UniPhier based board and want to use the on-chip 624 serial ports, say Y to this option. If unsure, say N. 625 626config XILINX_UARTLITE 627 bool "Xilinx Uarlite support" 628 depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || 4xx) 629 help 630 If you have a Xilinx based board and want to use the uartlite 631 serial ports, say Y to this option. If unsure, say N. 632 633config MESON_SERIAL 634 bool "Support for Amlogic Meson UART" 635 depends on DM_SERIAL && ARCH_MESON 636 help 637 If you have an Amlogic Meson based board and want to use the on-chip 638 serial ports, say Y to this option. If unsure, say N. 639 640config MSM_SERIAL 641 bool "Qualcomm on-chip UART" 642 depends on DM_SERIAL 643 help 644 Support Data Mover UART used on Qualcomm Snapdragon SoCs. 645 It should support all Qualcomm devices with UARTDM version 1.4, 646 for example APQ8016 and MSM8916. 647 Single baudrate is supported in current implementation (115200). 648 649config OMAP_SERIAL 650 bool "Support for OMAP specific UART" 651 depends on DM_SERIAL 652 default y if (ARCH_OMAP2PLUS || ARCH_K3) 653 select SYS_NS16550 654 help 655 If you have an TI based SoC and want to use the on-chip serial 656 port, say Y to this option. If unsure say N. 657 658config OWL_SERIAL 659 bool "Actions Semi OWL UART" 660 depends on DM_SERIAL && ARCH_OWL 661 help 662 If you have a Actions Semi OWL based board and want to use the on-chip 663 serial port, say Y to this option. If unsure, say N. 664 Single baudrate is supported in current implementation (115200). 665 666config PXA_SERIAL 667 bool "PXA serial port support" 668 help 669 If you have a machine based on a Marvell XScale PXA2xx CPU you 670 can enable its onboard serial ports by enabling this option. 671 672config STI_ASC_SERIAL 673 bool "STMicroelectronics on-chip UART" 674 depends on DM_SERIAL && ARCH_STI 675 help 676 Select this to enable Asynchronous Serial Controller available 677 on STiH410 SoC. This is a basic implementation, it supports 678 following baudrate 9600, 19200, 38400, 57600 and 115200. 679 680config STM32_SERIAL 681 bool "STMicroelectronics STM32 SoCs on-chip UART" 682 depends on DM_SERIAL && (STM32F4 || STM32F7 || STM32H7 || ARCH_STM32MP) 683 help 684 If you have a machine based on a STM32 F4, F7, H7 or MP1 SOC 685 you can enable its onboard serial ports, say Y to this option. 686 If unsure, say N. 687 688config ZYNQ_SERIAL 689 bool "Cadence (Xilinx Zynq) UART support" 690 depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_ZYNQMP_R5) 691 help 692 This driver supports the Cadence UART. It is found e.g. in Xilinx 693 Zynq/ZynqMP. 694 695config MPC8XX_CONS 696 bool "Console driver for MPC8XX" 697 depends on MPC8xx 698 default y 699 700choice 701 prompt "Console port" 702 default 8xx_CONS_SMC1 703 depends on MPC8XX_CONS 704 help 705 Depending on board, select one serial port 706 (CONFIG_8xx_CONS_SMC1 or CONFIG_8xx_CONS_SMC2) 707 708config 8xx_CONS_SMC1 709 bool "SMC1" 710 711config 8xx_CONS_SMC2 712 bool "SMC2" 713 714endchoice 715 716config SYS_SMC_RXBUFLEN 717 int "Console Rx buffer length" 718 depends on MPC8XX_CONS 719 default 1 720 help 721 With CONFIG_SYS_SMC_RXBUFLEN it is possible to define 722 the maximum receive buffer length for the SMC. 723 This option is actual only for 8xx possible. 724 If using CONFIG_SYS_SMC_RXBUFLEN also CONFIG_SYS_MAXIDLE 725 must be defined, to setup the maximum idle timeout for 726 the SMC. 727 728config SYS_MAXIDLE 729 int "maximum idle timeout" 730 depends on MPC8XX_CONS 731 default 0 732 733config SYS_BRGCLK_PRESCALE 734 int "BRG Clock Prescale" 735 depends on MPC8XX_CONS 736 default 1 737 738config SYS_SDSR 739 hex "SDSR Value" 740 depends on MPC8XX_CONS 741 default 0x83 742 743config SYS_SDMR 744 hex "SDMR Value" 745 depends on MPC8XX_CONS 746 default 0 747 748endmenu 749