tjh.dev / kernel
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kernel / arch / arm / Kconfig.debug
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1# SPDX-License-Identifier: GPL-2.0 2 3config ARM_PTDUMP_CORE 4 def_bool n 5 6config ARM_PTDUMP_DEBUGFS 7 bool "Export kernel pagetable layout to userspace via debugfs" 8 depends on DEBUG_KERNEL 9 depends on MMU 10 select ARM_PTDUMP_CORE 11 select DEBUG_FS 12 help 13 Say Y here if you want to show the kernel pagetable layout in a 14 debugfs file. This information is only useful for kernel developers 15 who are working in architecture specific areas of the kernel. 16 It is probably not a good idea to enable this feature in a production 17 kernel. 18 If in doubt, say "N" 19 20config DEBUG_WX 21 bool "Warn on W+X mappings at boot" 22 depends on MMU 23 select ARM_PTDUMP_CORE 24 help 25 Generate a warning if any W+X mappings are found at boot. 26 27 This is useful for discovering cases where the kernel is leaving 28 W+X mappings after applying NX, as such mappings are a security risk. 29 30 Look for a message in dmesg output like this: 31 32 arm/mm: Checked W+X mappings: passed, no W+X pages found. 33 34 or like this, if the check failed: 35 36 arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found. 37 38 Note that even if the check fails, your kernel is possibly 39 still fine, as W+X mappings are not a security hole in 40 themselves, what they do is that they make the exploitation 41 of other unfixed kernel bugs easier. 42 43 There is no runtime or memory usage effect of this option 44 once the kernel has booted up - it's a one time check. 45 46 If in doubt, say "Y". 47 48choice 49 prompt "Choose kernel unwinder" 50 default UNWINDER_ARM if AEABI 51 default UNWINDER_FRAME_POINTER if !AEABI 52 help 53 This determines which method will be used for unwinding kernel stack 54 traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack, 55 livepatch, lockdep, and more. 56 57config UNWINDER_FRAME_POINTER 58 bool "Frame pointer unwinder" 59 depends on !THUMB2_KERNEL 60 select ARCH_WANT_FRAME_POINTERS 61 select FRAME_POINTER 62 help 63 This option enables the frame pointer unwinder for unwinding 64 kernel stack traces. 65 66config UNWINDER_ARM 67 bool "ARM EABI stack unwinder" 68 depends on AEABI && !FUNCTION_GRAPH_TRACER 69 select ARM_UNWIND 70 help 71 This option enables stack unwinding support in the kernel 72 using the information automatically generated by the 73 compiler. The resulting kernel image is slightly bigger but 74 the performance is not affected. Currently, this feature 75 only works with EABI compilers. 76 77endchoice 78 79config ARM_UNWIND 80 bool 81 82config BACKTRACE_VERBOSE 83 bool "Verbose backtrace" 84 depends on EXPERT 85 help 86 When the kernel produces a warning or oops, the kernel prints a 87 trace of the call chain. This option controls whether we include 88 the numeric addresses or only include the symbolic information. 89 90 In most cases, say N here, unless you are intending to debug the 91 kernel and have access to the kernel binary image. 92 93config FRAME_POINTER 94 bool 95 96config DEBUG_USER 97 bool "Verbose user fault messages" 98 help 99 When a user program crashes due to an exception, the kernel can 100 print a brief message explaining what the problem was. This is 101 sometimes helpful for debugging but serves no purpose on a 102 production system. Most people should say N here. 103 104 In addition, you need to pass user_debug=N on the kernel command 105 line to enable this feature. N consists of the sum of: 106 107 1 - undefined instruction events 108 2 - system calls 109 4 - invalid data aborts 110 8 - SIGSEGV faults 111 16 - SIGBUS faults 112 113# These options are only for real kernel hackers who want to get their hands dirty. 114config DEBUG_LL 115 bool "Kernel low-level debugging functions (read help!)" 116 depends on DEBUG_KERNEL 117 help 118 Say Y here to include definitions of printascii, printch, printhex 119 in the kernel. This is helpful if you are debugging code that 120 executes before the console is initialized. 121 122 Note that selecting this option will limit the kernel to a single 123 UART definition, as specified below. Attempting to boot the kernel 124 image on a different platform *will not work*, so this option should 125 not be enabled for kernels that are intended to be portable. 126 127choice 128 prompt "Kernel low-level debugging port" 129 depends on DEBUG_LL 130 131 config DEBUG_ALPINE_UART0 132 bool "Kernel low-level debugging messages via Alpine UART0" 133 depends on ARCH_ALPINE 134 select DEBUG_UART_8250 135 help 136 Say Y here if you want kernel low-level debugging support 137 on Alpine based platforms. 138 139 config DEBUG_ASM9260_UART 140 bool "Kernel low-level debugging via asm9260 UART" 141 depends on MACH_ASM9260 142 help 143 Say Y here if you want the debug print routines to direct 144 their output to an UART or USART port on asm9260 based 145 machines. 146 147 DEBUG_UART_PHYS | DEBUG_UART_VIRT 148 149 0x80000000 | 0xf0000000 | UART0 150 0x80004000 | 0xf0004000 | UART1 151 0x80008000 | 0xf0008000 | UART2 152 0x8000c000 | 0xf000c000 | UART3 153 0x80010000 | 0xf0010000 | UART4 154 0x80014000 | 0xf0014000 | UART5 155 0x80018000 | 0xf0018000 | UART6 156 0x8001c000 | 0xf001c000 | UART7 157 0x80020000 | 0xf0020000 | UART8 158 0x80024000 | 0xf0024000 | UART9 159 160 config DEBUG_AT91_RM9200_DBGU 161 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU" 162 select DEBUG_AT91_UART 163 depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60 164 help 165 Say Y here if you want kernel low-level debugging support 166 on the DBGU port of: 167 at91rm9200, at91sam9260, at91sam9g20, at91sam9261, 168 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60 169 170 config DEBUG_AT91_SAM9263_DBGU 171 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU" 172 select DEBUG_AT91_UART 173 depends on SOC_AT91SAM9 || SOC_SAMA5D3 174 help 175 Say Y here if you want kernel low-level debugging support 176 on the DBGU port of: 177 at91sam9263, at91sam9g45, at91sam9m10, 178 sama5d3 179 180 config DEBUG_AT91_SAMA5D2_UART1 181 bool "Kernel low-level debugging on SAMA5D2 UART1" 182 select DEBUG_AT91_UART 183 depends on SOC_SAMA5D2 184 help 185 Say Y here if you want kernel low-level debugging support 186 on the UART1 port of sama5d2. 187 188 config DEBUG_AT91_SAMA5D4_USART3 189 bool "Kernel low-level debugging on SAMA5D4 USART3" 190 select DEBUG_AT91_UART 191 depends on SOC_SAMA5D4 192 help 193 Say Y here if you want kernel low-level debugging support 194 on the USART3 port of sama5d4. 195 196 config DEBUG_AT91_SAMV7_USART1 197 bool "Kernel low-level debugging via SAMV7 USART1" 198 select DEBUG_AT91_UART 199 depends on SOC_SAMV7 200 help 201 Say Y here if you want the debug print routines to direct 202 their output to the USART1 port on SAMV7 based 203 machines. 204 205 config DEBUG_AT91_SAMA7G5_FLEXCOM3 206 bool "Kernel low-level debugging on SAMA7G5 FLEXCOM3" 207 select DEBUG_AT91_UART 208 depends on SOC_SAMA7G5 209 help 210 Say Y here if you want kernel low-level debugging support 211 on the FLEXCOM3 port of SAMA7G5. 212 213 config DEBUG_BCM2835 214 bool "Kernel low-level debugging on BCM2835 PL011 UART" 215 depends on ARCH_BCM2835 && ARCH_MULTI_V6 216 select DEBUG_UART_PL01X 217 218 config DEBUG_BCM2836 219 bool "Kernel low-level debugging on BCM2836 PL011 UART" 220 depends on ARCH_BCM2835 && ARCH_MULTI_V7 221 select DEBUG_UART_PL01X 222 223 config DEBUG_BCM_5301X 224 bool "Kernel low-level debugging on BCM5301X/NSP UART1" 225 depends on ARCH_BCM_5301X || ARCH_BCM_NSP 226 select DEBUG_UART_8250 227 228 config DEBUG_BCM_HR2 229 bool "Kernel low-level debugging on Hurricane 2 UART2" 230 depends on ARCH_BCM_HR2 231 select DEBUG_UART_8250 232 233 config DEBUG_BCM_IPROC_UART3 234 bool "Kernel low-level debugging on BCM IPROC UART3" 235 depends on ARCH_BCM_CYGNUS 236 select DEBUG_UART_8250 237 help 238 Say Y here if you want the debug print routines to direct 239 their output to the third serial port on these devices. 240 241 config DEBUG_BCM_KONA_UART 242 bool "Kernel low-level debugging messages via BCM KONA UART" 243 depends on ARCH_BCM_MOBILE 244 select DEBUG_UART_8250 245 help 246 Say Y here if you want kernel low-level debugging support 247 on Broadcom SoC platforms. 248 This low level debug works for Broadcom 249 mobile SoCs in the Kona family of chips (e.g. bcm28155, 250 bcm11351, etc...) 251 252 config DEBUG_BCM63XX_UART 253 bool "Kernel low-level debugging on BCM63XX UART" 254 depends on ARCH_BCM_63XX 255 256 config DEBUG_BERLIN_UART 257 bool "Marvell Berlin SoC Debug UART" 258 depends on ARCH_BERLIN 259 select DEBUG_UART_8250 260 help 261 Say Y here if you want kernel low-level debugging support 262 on Marvell Berlin SoC based platforms. 263 264 config DEBUG_BRCMSTB_UART 265 bool "Use BRCMSTB UART for low-level debug" 266 depends on ARCH_BRCMSTB 267 help 268 Say Y here if you want the debug print routines to direct 269 their output to the first serial port on these devices. The 270 UART physical and virtual address is automatically provided 271 based on the chip identification register value. 272 273 If you have a Broadcom STB chip and would like early print 274 messages to appear over the UART, select this option. 275 276 config DEBUG_CLPS711X_UART1 277 bool "Kernel low-level debugging messages via UART1" 278 depends on ARCH_CLPS711X 279 help 280 Say Y here if you want the debug print routines to direct 281 their output to the first serial port on these devices. 282 283 config DEBUG_CLPS711X_UART2 284 bool "Kernel low-level debugging messages via UART2" 285 depends on ARCH_CLPS711X 286 help 287 Say Y here if you want the debug print routines to direct 288 their output to the second serial port on these devices. 289 290 config DEBUG_CNS3XXX 291 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx" 292 depends on ARCH_CNS3XXX 293 select DEBUG_UART_8250 294 help 295 Say Y here if you want the debug print routines to direct 296 their output to the CNS3xxx UART0. 297 298 config DEBUG_DAVINCI_DA8XX_UART1 299 bool "Kernel low-level debugging on DaVinci DA8XX using UART1" 300 depends on ARCH_DAVINCI_DA8XX 301 select DEBUG_UART_8250 302 help 303 Say Y here if you want the debug print routines to direct 304 their output to UART1 serial port on DaVinci DA8XX devices. 305 306 config DEBUG_DAVINCI_DA8XX_UART2 307 bool "Kernel low-level debugging on DaVinci DA8XX using UART2" 308 depends on ARCH_DAVINCI_DA8XX 309 select DEBUG_UART_8250 310 help 311 Say Y here if you want the debug print routines to direct 312 their output to UART2 serial port on DaVinci DA8XX devices. 313 314 config DEBUG_DAVINCI_DMx_UART0 315 bool "Kernel low-level debugging on DaVinci DMx using UART0" 316 depends on ARCH_DAVINCI_DMx 317 select DEBUG_UART_8250 318 help 319 Say Y here if you want the debug print routines to direct 320 their output to UART0 serial port on DaVinci DMx devices. 321 322 config DEBUG_DC21285_PORT 323 bool "Kernel low-level debugging messages via footbridge serial port" 324 depends on FOOTBRIDGE 325 help 326 Say Y here if you want the debug print routines to direct 327 their output to the serial port in the DC21285 (Footbridge). 328 329 config DEBUG_DIGICOLOR_UA0 330 bool "Kernel low-level debugging messages via Digicolor UA0" 331 depends on ARCH_DIGICOLOR 332 help 333 Say Y here if you want the debug print routines to direct 334 their output to the UA0 serial port in the CX92755. 335 336 config DEBUG_EP93XX 337 bool "Kernel low-level debugging messages via ep93xx UART" 338 depends on ARCH_EP93XX 339 select DEBUG_UART_PL01X 340 help 341 Say Y here if you want kernel low-level debugging support 342 on Cirrus Logic EP93xx based platforms. 343 344 config DEBUG_FOOTBRIDGE_COM1 345 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" 346 depends on FOOTBRIDGE 347 select DEBUG_UART_8250 348 help 349 Say Y here if you want the debug print routines to direct 350 their output to the 8250 at PCI COM1. 351 352 config DEBUG_GEMINI 353 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART" 354 depends on ARCH_GEMINI 355 select DEBUG_UART_8250 356 help 357 Say Y here if you want kernel low-level debugging support 358 on Cortina Gemini based platforms. 359 360 config DEBUG_HI3620_UART 361 bool "Hisilicon HI3620 Debug UART" 362 depends on ARCH_HI3xxx 363 select DEBUG_UART_PL01X 364 help 365 Say Y here if you want kernel low-level debugging support 366 on HI3620 UART. 367 368 config DEBUG_HIGHBANK_UART 369 bool "Kernel low-level debugging messages via Highbank UART" 370 depends on ARCH_HIGHBANK 371 select DEBUG_UART_PL01X 372 help 373 Say Y here if you want the debug print routines to direct 374 their output to the UART on Highbank based devices. 375 376 config DEBUG_HIP01_UART 377 bool "Hisilicon Hip01 Debug UART" 378 depends on ARCH_HIP01 379 select DEBUG_UART_8250 380 help 381 Say Y here if you want kernel low-level debugging support 382 on HIP01 UART. 383 384 config DEBUG_HIP04_UART 385 bool "Hisilicon HiP04 Debug UART" 386 depends on ARCH_HIP04 387 select DEBUG_UART_8250 388 help 389 Say Y here if you want kernel low-level debugging support 390 on HIP04 UART. 391 392 config DEBUG_HIX5HD2_UART 393 bool "Hisilicon Hix5hd2 Debug UART" 394 depends on ARCH_HIX5HD2 395 select DEBUG_UART_PL01X 396 help 397 Say Y here if you want kernel low-level debugging support 398 on Hix5hd2 UART. 399 400 config DEBUG_IMX1_UART 401 bool "i.MX1 Debug UART" 402 depends on SOC_IMX1 403 help 404 Say Y here if you want kernel low-level debugging support 405 on i.MX1. 406 407 config DEBUG_IMX23_UART 408 bool "i.MX23 Debug UART" 409 depends on SOC_IMX23 410 select DEBUG_UART_PL01X 411 help 412 Say Y here if you want kernel low-level debugging support 413 on i.MX23. 414 415 config DEBUG_IMX25_UART 416 bool "i.MX25 Debug UART" 417 depends on SOC_IMX25 418 help 419 Say Y here if you want kernel low-level debugging support 420 on i.MX25. 421 422 config DEBUG_IMX27_UART 423 bool "i.MX27 Debug UART" 424 depends on SOC_IMX27 425 help 426 Say Y here if you want kernel low-level debugging support 427 on i.MX27. 428 429 config DEBUG_IMX28_UART 430 bool "i.MX28 Debug UART" 431 depends on SOC_IMX28 432 select DEBUG_UART_PL01X 433 help 434 Say Y here if you want kernel low-level debugging support 435 on i.MX28. 436 437 config DEBUG_IMX31_UART 438 bool "i.MX31 Debug UART" 439 depends on SOC_IMX31 440 help 441 Say Y here if you want kernel low-level debugging support 442 on i.MX31. 443 444 config DEBUG_IMX35_UART 445 bool "i.MX35 Debug UART" 446 depends on SOC_IMX35 447 help 448 Say Y here if you want kernel low-level debugging support 449 on i.MX35. 450 451 config DEBUG_IMX50_UART 452 bool "i.MX50 Debug UART" 453 depends on SOC_IMX50 454 help 455 Say Y here if you want kernel low-level debugging support 456 on i.MX50. 457 458 config DEBUG_IMX51_UART 459 bool "i.MX51 Debug UART" 460 depends on SOC_IMX51 461 help 462 Say Y here if you want kernel low-level debugging support 463 on i.MX51. 464 465 config DEBUG_IMX53_UART 466 bool "i.MX53 Debug UART" 467 depends on SOC_IMX53 468 help 469 Say Y here if you want kernel low-level debugging support 470 on i.MX53. 471 472 config DEBUG_IMX6Q_UART 473 bool "i.MX6Q/DL Debug UART" 474 depends on SOC_IMX6Q 475 help 476 Say Y here if you want kernel low-level debugging support 477 on i.MX6Q/DL. 478 479 config DEBUG_IMX6SL_UART 480 bool "i.MX6SL Debug UART" 481 depends on SOC_IMX6SL 482 help 483 Say Y here if you want kernel low-level debugging support 484 on i.MX6SL. 485 486 config DEBUG_IMX6SX_UART 487 bool "i.MX6SX Debug UART" 488 depends on SOC_IMX6SX 489 help 490 Say Y here if you want kernel low-level debugging support 491 on i.MX6SX. 492 493 config DEBUG_IMX6UL_UART 494 bool "i.MX6UL Debug UART" 495 depends on SOC_IMX6UL 496 help 497 Say Y here if you want kernel low-level debugging support 498 on i.MX6UL. 499 500 config DEBUG_IMX7D_UART 501 bool "i.MX7D Debug UART" 502 depends on SOC_IMX7D 503 help 504 Say Y here if you want kernel low-level debugging support 505 on i.MX7D. 506 507 config DEBUG_INTEGRATOR 508 bool "Kernel low-level debugging messages via ARM Integrator UART" 509 depends on ARCH_INTEGRATOR 510 select DEBUG_UART_PL01X 511 help 512 Say Y here if you want kernel low-level debugging support 513 on ARM Integrator platforms. 514 515 config DEBUG_KEYSTONE_UART0 516 bool "Kernel low-level debugging on KEYSTONE2 using UART0" 517 depends on ARCH_KEYSTONE 518 select DEBUG_UART_8250 519 help 520 Say Y here if you want the debug print routines to direct 521 their output to UART0 serial port on KEYSTONE2 devices. 522 523 config DEBUG_KEYSTONE_UART1 524 bool "Kernel low-level debugging on KEYSTONE2 using UART1" 525 depends on ARCH_KEYSTONE 526 select DEBUG_UART_8250 527 help 528 Say Y here if you want the debug print routines to direct 529 their output to UART1 serial port on KEYSTONE2 devices. 530 531 config DEBUG_LPC18XX_UART0 532 bool "Kernel low-level debugging via LPC18xx/43xx UART0" 533 depends on ARCH_LPC18XX 534 select DEBUG_UART_8250 535 help 536 Say Y here if you want kernel low-level debugging support 537 on NXP LPC18xx/43xx UART0. 538 539 config DEBUG_LPC32XX 540 bool "Kernel low-level debugging messages via NXP LPC32xx UART" 541 depends on ARCH_LPC32XX 542 select DEBUG_UART_8250 543 help 544 Say Y here if you want kernel low-level debugging support 545 on NXP LPC32xx based platforms. 546 547 config DEBUG_MESON_UARTAO 548 bool "Kernel low-level debugging via Meson6 UARTAO" 549 depends on ARCH_MESON 550 help 551 Say Y here if you want kernel low-lever debugging support 552 on Amlogic Meson6 based platforms on the UARTAO. 553 554 config DEBUG_MMP_UART2 555 bool "Kernel low-level debugging message via MMP UART2" 556 depends on ARCH_MMP 557 select DEBUG_UART_8250 558 help 559 Say Y here if you want kernel low-level debugging support 560 on MMP UART2. 561 562 config DEBUG_MMP_UART3 563 bool "Kernel low-level debugging message via MMP UART3" 564 depends on ARCH_MMP 565 select DEBUG_UART_8250 566 help 567 Say Y here if you want kernel low-level debugging support 568 on MMP UART3. 569 570 config DEBUG_MVEBU_UART0 571 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)" 572 depends on ARCH_MVEBU 573 depends on ARCH_MVEBU && CPU_V7 574 select DEBUG_UART_8250 575 help 576 Say Y here if you want kernel low-level debugging support 577 on MVEBU based platforms on UART0. 578 579 This option should be used with the old bootloaders 580 that left the internal registers mapped at 581 0xd0000000. As of today, this is the case on 582 platforms such as the Globalscale Mirabox or the 583 Plathome OpenBlocks AX3, when using the original 584 bootloader. 585 586 This option will not work on older Marvell platforms 587 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick 588 the "new bootloader" variant. 589 590 If the wrong DEBUG_MVEBU_UART* option is selected, 591 when u-boot hands over to the kernel, the system 592 silently crashes, with no serial output at all. 593 594 config DEBUG_MVEBU_UART0_ALTERNATE 595 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)" 596 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X 597 select DEBUG_UART_8250 598 help 599 Say Y here if you want kernel low-level debugging support 600 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx, 601 Kirkwood, Dove, MV78xx0, Orion5x). 602 603 604 This option should be used with the new bootloaders 605 that remap the internal registers at 0xf1000000. 606 607 If the wrong DEBUG_MVEBU_UART* option is selected, 608 when u-boot hands over to the kernel, the system 609 silently crashes, with no serial output at all. 610 611 config DEBUG_MVEBU_UART1_ALTERNATE 612 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)" 613 depends on ARCH_MVEBU 614 select DEBUG_UART_8250 615 help 616 Say Y here if you want kernel low-level debugging support 617 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx, 618 Kirkwood, Dove, MV78xx0, Orion5x). 619 620 This option should be used with the new bootloaders 621 that remap the internal registers at 0xf1000000. 622 All of the older (pre Armada XP/370) platforms also use 623 this address, regardless of the boot loader version. 624 625 If the wrong DEBUG_MVEBU_UART* option is selected, 626 when u-boot hands over to the kernel, the system 627 silently crashes, with no serial output at all. 628 629 config DEBUG_MSTARV7_PMUART 630 bool "Kernel low-level debugging messages via MSTARV7 PM UART" 631 depends on ARCH_MSTARV7 632 select DEBUG_UART_8250 633 help 634 Say Y here if you want kernel low-level debugging support 635 for MSTAR ARMv7-based platforms on PM UART. 636 637 config DEBUG_MT6589_UART0 638 bool "Mediatek mt6589 UART0" 639 depends on ARCH_MEDIATEK 640 select DEBUG_UART_8250 641 help 642 Say Y here if you want kernel low-level debugging support 643 for Mediatek mt6589 based platforms on UART0. 644 645 config DEBUG_MT8127_UART0 646 bool "Mediatek mt8127/mt6592 UART0" 647 depends on ARCH_MEDIATEK 648 select DEBUG_UART_8250 649 help 650 Say Y here if you want kernel low-level debugging support 651 for Mediatek mt8127 based platforms on UART0. 652 653 config DEBUG_MT8135_UART3 654 bool "Mediatek mt8135 UART3" 655 depends on ARCH_MEDIATEK 656 select DEBUG_UART_8250 657 help 658 Say Y here if you want kernel low-level debugging support 659 for Mediatek mt8135 based platforms on UART3. 660 661 config DEBUG_NOMADIK_UART 662 bool "Kernel low-level debugging messages via NOMADIK UART" 663 depends on ARCH_NOMADIK 664 select DEBUG_UART_PL01X 665 help 666 Say Y here if you want kernel low-level debugging support 667 on NOMADIK based platforms. 668 669 config DEBUG_NSPIRE_CLASSIC_UART 670 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" 671 depends on ARCH_NSPIRE 672 select DEBUG_UART_8250 673 help 674 Say Y here if you want kernel low-level debugging support 675 on TI-NSPIRE classic models. 676 677 config DEBUG_NSPIRE_CX_UART 678 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" 679 depends on ARCH_NSPIRE 680 select DEBUG_UART_PL01X 681 help 682 Say Y here if you want kernel low-level debugging support 683 on TI-NSPIRE CX models. 684 685 config DEBUG_OMAP1UART1 686 bool "Kernel low-level debugging via OMAP1 UART1" 687 depends on ARCH_OMAP1 688 select DEBUG_UART_8250 689 help 690 Say Y here if you want kernel low-level debugging support 691 on OMAP1 based platforms (except OMAP730) on the UART1. 692 693 config DEBUG_OMAP1UART2 694 bool "Kernel low-level debugging via OMAP1 UART2" 695 depends on ARCH_OMAP1 696 select DEBUG_UART_8250 697 help 698 Say Y here if you want kernel low-level debugging support 699 on OMAP1 based platforms (except OMAP730) on the UART2. 700 701 config DEBUG_OMAP1UART3 702 bool "Kernel low-level debugging via OMAP1 UART3" 703 depends on ARCH_OMAP1 704 select DEBUG_UART_8250 705 help 706 Say Y here if you want kernel low-level debugging support 707 on OMAP1 based platforms (except OMAP730) on the UART3. 708 709 config DEBUG_OMAP2UART1 710 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" 711 depends on ARCH_OMAP2PLUS 712 select DEBUG_UART_8250 713 help 714 This covers at least h4, 2430sdp, 3430sdp, 3630sdp, 715 omap3 torpedo and 3530 lv som. 716 717 config DEBUG_OMAP2UART2 718 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2" 719 depends on ARCH_OMAP2PLUS 720 select DEBUG_UART_8250 721 722 config DEBUG_OMAP2UART3 723 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)" 724 depends on ARCH_OMAP2PLUS 725 select DEBUG_UART_8250 726 727 config DEBUG_OMAP3UART3 728 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)" 729 depends on ARCH_OMAP2PLUS 730 select DEBUG_UART_8250 731 help 732 This covers at least cm_t3x, beagle, crane, devkit8000, 733 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, 734 and 3517evm. 735 736 config DEBUG_OMAP4UART3 737 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" 738 depends on ARCH_OMAP2PLUS 739 select DEBUG_UART_8250 740 741 config DEBUG_OMAP3UART4 742 bool "Kernel low-level debugging messages via OMAP36XX UART4" 743 depends on ARCH_OMAP2PLUS 744 select DEBUG_UART_8250 745 746 config DEBUG_OMAP4UART4 747 bool "Kernel low-level debugging messages via OMAP4/5 UART4" 748 depends on ARCH_OMAP2PLUS 749 select DEBUG_UART_8250 750 751 config DEBUG_OMAP7XXUART1 752 bool "Kernel low-level debugging via OMAP730 UART1" 753 depends on ARCH_OMAP730 754 select DEBUG_UART_8250 755 help 756 Say Y here if you want kernel low-level debugging support 757 on OMAP730 based platforms on the UART1. 758 759 config DEBUG_OMAP7XXUART2 760 bool "Kernel low-level debugging via OMAP730 UART2" 761 depends on ARCH_OMAP730 762 select DEBUG_UART_8250 763 help 764 Say Y here if you want kernel low-level debugging support 765 on OMAP730 based platforms on the UART2. 766 767 config DEBUG_OMAP7XXUART3 768 bool "Kernel low-level debugging via OMAP730 UART3" 769 depends on ARCH_OMAP730 770 select DEBUG_UART_8250 771 help 772 Say Y here if you want kernel low-level debugging support 773 on OMAP730 based platforms on the UART3. 774 775 config DEBUG_TI81XXUART1 776 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)" 777 depends on ARCH_OMAP2PLUS 778 select DEBUG_UART_8250 779 780 config DEBUG_TI81XXUART2 781 bool "Kernel low-level debugging messages via TI81XX UART2" 782 depends on ARCH_OMAP2PLUS 783 select DEBUG_UART_8250 784 785 config DEBUG_TI81XXUART3 786 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)" 787 depends on ARCH_OMAP2PLUS 788 select DEBUG_UART_8250 789 790 config DEBUG_AM33XXUART1 791 bool "Kernel low-level debugging messages via AM33XX UART1" 792 depends on ARCH_OMAP2PLUS 793 select DEBUG_UART_8250 794 795 config DEBUG_ZOOM_UART 796 bool "Kernel low-level debugging messages via Zoom2/3 UART" 797 depends on ARCH_OMAP2PLUS 798 select DEBUG_OMAP2PLUS_UART 799 800 config DEBUG_PXA_UART1 801 depends on ARCH_PXA 802 bool "Use PXA UART1 for low-level debug" 803 select DEBUG_UART_8250 804 help 805 Say Y here if you want kernel low-level debugging support 806 on PXA UART1. 807 808 config DEBUG_QCOM_UARTDM 809 bool "Kernel low-level debugging messages via QCOM UARTDM" 810 depends on ARCH_QCOM 811 help 812 Say Y here if you want the debug print routines to direct 813 their output to the serial port on Qualcomm devices. 814 815 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT 816 APQ8064 0x16640000 0xf0040000 817 APQ8084 0xf995e000 0xfa75e000 818 IPQ4019 0x078af000 0xf78af000 819 MSM8X60 0x19c40000 0xf0040000 820 MSM8960 0x16440000 0xf0040000 821 MSM8974 0xf991e000 0xfa71e000 822 823 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration 824 options based on your needs. 825 826 config DEBUG_REALVIEW_STD_PORT 827 bool "RealView Default UART" 828 depends on ARCH_REALVIEW 829 select DEBUG_UART_PL01X 830 help 831 Say Y here if you want the debug print routines to direct 832 their output to the serial port on RealView EB, PB11MP, PBA8 833 and PBX platforms. 834 835 config DEBUG_REALVIEW_PB1176_PORT 836 bool "RealView PB1176 UART" 837 depends on MACH_REALVIEW_PB1176 838 select DEBUG_UART_PL01X 839 help 840 Say Y here if you want the debug print routines to direct 841 their output to the standard serial port on the RealView 842 PB1176 platform. 843 844 config DEBUG_RV1108_UART0 845 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0" 846 depends on ARCH_ROCKCHIP 847 select DEBUG_UART_8250 848 help 849 Say Y here if you want kernel low-level debugging support 850 on Rockchip RV1108 based platforms. 851 852 config DEBUG_RV1108_UART1 853 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1" 854 depends on ARCH_ROCKCHIP 855 select DEBUG_UART_8250 856 help 857 Say Y here if you want kernel low-level debugging support 858 on Rockchip RV1108 based platforms. 859 860 config DEBUG_RV1108_UART2 861 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2" 862 depends on ARCH_ROCKCHIP 863 select DEBUG_UART_8250 864 help 865 Say Y here if you want kernel low-level debugging support 866 on Rockchip RV1108 based platforms. 867 868 config DEBUG_RK29_UART0 869 bool "Kernel low-level debugging messages via Rockchip RK29 UART0" 870 depends on ARCH_ROCKCHIP 871 select DEBUG_UART_8250 872 help 873 Say Y here if you want kernel low-level debugging support 874 on Rockchip based platforms. 875 876 config DEBUG_RK29_UART1 877 bool "Kernel low-level debugging messages via Rockchip RK29 UART1" 878 depends on ARCH_ROCKCHIP 879 select DEBUG_UART_8250 880 help 881 Say Y here if you want kernel low-level debugging support 882 on Rockchip based platforms. 883 884 config DEBUG_RK29_UART2 885 bool "Kernel low-level debugging messages via Rockchip RK29 UART2" 886 depends on ARCH_ROCKCHIP 887 select DEBUG_UART_8250 888 help 889 Say Y here if you want kernel low-level debugging support 890 on Rockchip based platforms. 891 892 config DEBUG_RK3X_UART0 893 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0" 894 depends on ARCH_ROCKCHIP 895 select DEBUG_UART_8250 896 help 897 Say Y here if you want kernel low-level debugging support 898 on Rockchip based platforms. 899 900 config DEBUG_RK3X_UART1 901 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1" 902 depends on ARCH_ROCKCHIP 903 select DEBUG_UART_8250 904 help 905 Say Y here if you want kernel low-level debugging support 906 on Rockchip based platforms. 907 908 config DEBUG_RK3X_UART2 909 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2" 910 depends on ARCH_ROCKCHIP 911 select DEBUG_UART_8250 912 help 913 Say Y here if you want kernel low-level debugging support 914 on Rockchip based platforms. 915 916 config DEBUG_RK3X_UART3 917 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3" 918 depends on ARCH_ROCKCHIP 919 select DEBUG_UART_8250 920 help 921 Say Y here if you want kernel low-level debugging support 922 on Rockchip based platforms. 923 924 config DEBUG_RK32_UART2 925 bool "Kernel low-level debugging messages via Rockchip RK32 UART2" 926 depends on ARCH_ROCKCHIP 927 select DEBUG_UART_8250 928 help 929 Say Y here if you want kernel low-level debugging support 930 on Rockchip RK32xx based platforms. 931 932 config DEBUG_R7S72100_SCIF2 933 bool "Kernel low-level debugging messages via SCIF2 on R7S72100" 934 depends on ARCH_R7S72100 935 help 936 Say Y here if you want kernel low-level debugging support 937 via SCIF2 on Renesas RZ/A1H (R7S72100). 938 939 config DEBUG_R7S9210_SCIF2 940 bool "Kernel low-level debugging messages via SCIF2 on R7S9210" 941 depends on ARCH_R7S9210 942 help 943 Say Y here if you want kernel low-level debugging support 944 via SCIF2 on Renesas RZ/A2M (R7S9210). 945 946 config DEBUG_R7S9210_SCIF4 947 bool "Kernel low-level debugging messages via SCIF4 on R7S9210" 948 depends on ARCH_R7S9210 949 help 950 Say Y here if you want kernel low-level debugging support 951 via SCIF4 on Renesas RZ/A2M (R7S9210). 952 953 config DEBUG_RCAR_GEN1_SCIF0 954 bool "Kernel low-level debugging messages via SCIF0 on R8A7778" 955 depends on ARCH_R8A7778 956 help 957 Say Y here if you want kernel low-level debugging support 958 via SCIF0 on Renesas R-Car M1A (R8A7778). 959 960 config DEBUG_RCAR_GEN1_SCIF2 961 bool "Kernel low-level debugging messages via SCIF2 on R8A7779" 962 depends on ARCH_R8A7779 963 help 964 Say Y here if you want kernel low-level debugging support 965 via SCIF2 on Renesas R-Car H1 (R8A7779). 966 967 config DEBUG_RCAR_GEN2_SCIF0 968 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1" 969 depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \ 970 ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793 971 help 972 Say Y here if you want kernel low-level debugging support 973 via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744), 974 R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or 975 M2-N (R8A7793). 976 977 config DEBUG_RCAR_GEN2_SCIF1 978 bool "Kernel low-level debugging messages via SCIF1 on R8A77470" 979 depends on ARCH_R8A77470 980 help 981 Say Y here if you want kernel low-level debugging support 982 via SCIF1 on Renesas RZ/G1C (R8A77470). 983 984 config DEBUG_RCAR_GEN2_SCIF2 985 bool "Kernel low-level debugging messages via SCIF2 on R8A7794" 986 depends on ARCH_R8A7794 987 help 988 Say Y here if you want kernel low-level debugging support 989 via SCIF2 on Renesas R-Car E2 (R8A7794). 990 991 config DEBUG_RCAR_GEN2_SCIF4 992 bool "Kernel low-level debugging messages via SCIF4 on R8A7745" 993 depends on ARCH_R8A7745 994 help 995 Say Y here if you want kernel low-level debugging support 996 via SCIF4 on Renesas RZ/G1E (R8A7745). 997 998 config DEBUG_RCAR_GEN2_SCIFA2 999 bool "Kernel low-level debugging messages via SCIFA2 on R8A7742" 1000 depends on ARCH_R8A7742 1001 help 1002 Say Y here if you want kernel low-level debugging support 1003 via SCIFA2 on Renesas RZ/G1H (R8A7742). 1004 1005 config DEBUG_RMOBILE_SCIFA0 1006 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4" 1007 depends on ARCH_R8A73A4 1008 help 1009 Say Y here if you want kernel low-level debugging support 1010 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4). 1011 1012 config DEBUG_RMOBILE_SCIFA1 1013 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740" 1014 depends on ARCH_R8A7740 1015 help 1016 Say Y here if you want kernel low-level debugging support 1017 via SCIFA1 on Renesas R-Mobile A1 (R8A7740). 1018 1019 config DEBUG_RMOBILE_SCIFA4 1020 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0" 1021 depends on ARCH_SH73A0 1022 help 1023 Say Y here if you want kernel low-level debugging support 1024 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0). 1025 1026 config DEBUG_S3C_UART0 1027 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS 1028 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1029 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 1030 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1031 select DEBUG_S5PV210_UART if ARCH_S5PV210 1032 bool "Use Samsung S3C UART 0 for low-level debug" 1033 help 1034 Say Y here if you want the debug print routines to direct 1035 their output to UART 0. The port must have been initialised 1036 by the boot-loader before use. 1037 1038 config DEBUG_S3C_UART1 1039 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS 1040 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1041 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 1042 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1043 select DEBUG_S5PV210_UART if ARCH_S5PV210 1044 bool "Use Samsung S3C UART 1 for low-level debug" 1045 help 1046 Say Y here if you want the debug print routines to direct 1047 their output to UART 1. The port must have been initialised 1048 by the boot-loader before use. 1049 1050 config DEBUG_S3C_UART2 1051 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS 1052 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1053 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 1054 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1055 select DEBUG_S5PV210_UART if ARCH_S5PV210 1056 bool "Use Samsung S3C UART 2 for low-level debug" 1057 help 1058 Say Y here if you want the debug print routines to direct 1059 their output to UART 2. The port must have been initialised 1060 by the boot-loader before use. 1061 1062 config DEBUG_S3C_UART3 1063 depends on ARCH_EXYNOS || ARCH_S5PV210 1064 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1065 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1066 select DEBUG_S5PV210_UART if ARCH_S5PV210 1067 bool "Use Samsung S3C UART 3 for low-level debug" 1068 help 1069 Say Y here if you want the debug print routines to direct 1070 their output to UART 3. The port must have been initialised 1071 by the boot-loader before use. 1072 1073 config DEBUG_S3C2410_UART0 1074 depends on ARCH_S3C24XX 1075 select DEBUG_S3C2410_UART 1076 bool "Use S3C2410/S3C2412 UART 0 for low-level debug" 1077 help 1078 Say Y here if you want the debug print routines to direct 1079 their output to UART 0. The port must have been initialised 1080 by the boot-loader before use. 1081 1082 config DEBUG_S3C2410_UART1 1083 depends on ARCH_S3C24XX 1084 select DEBUG_S3C2410_UART 1085 bool "Use S3C2410/S3C2412 UART 1 for low-level debug" 1086 help 1087 Say Y here if you want the debug print routines to direct 1088 their output to UART 1. The port must have been initialised 1089 by the boot-loader before use. 1090 1091 config DEBUG_S3C2410_UART2 1092 depends on ARCH_S3C24XX 1093 select DEBUG_S3C2410_UART 1094 bool "Use S3C2410/S3C2412 UART 2 for low-level debug" 1095 help 1096 Say Y here if you want the debug print routines to direct 1097 their output to UART 2. The port must have been initialised 1098 by the boot-loader before use. 1099 1100 config DEBUG_SA1100 1101 depends on ARCH_SA1100 1102 bool "Use SA1100 UARTs for low-level debug" 1103 help 1104 Say Y here if you want kernel low-level debugging support 1105 on SA-11x0 UART ports. The kernel will check for the first 1106 enabled UART in a sequence 3-1-2. 1107 1108 config DEBUG_SD5203_UART 1109 bool "Hisilicon SD5203 Debug UART" 1110 depends on ARCH_SD5203 1111 select DEBUG_UART_8250 1112 help 1113 Say Y here if you want kernel low-level debugging support 1114 on SD5203 UART. 1115 1116 config DEBUG_SOCFPGA_UART0 1117 depends on ARCH_INTEL_SOCFPGA 1118 bool "Use SOCFPGA UART0 for low-level debug" 1119 select DEBUG_UART_8250 1120 help 1121 Say Y here if you want kernel low-level debugging support 1122 on SOCFPGA(Cyclone 5 and Arria 5) based platforms. 1123 1124 config DEBUG_SOCFPGA_ARRIA10_UART1 1125 depends on ARCH_INTEL_SOCFPGA 1126 bool "Use SOCFPGA Arria10 UART1 for low-level debug" 1127 select DEBUG_UART_8250 1128 help 1129 Say Y here if you want kernel low-level debugging support 1130 on SOCFPGA(Arria 10) based platforms. 1131 1132 config DEBUG_SOCFPGA_CYCLONE5_UART1 1133 depends on ARCH_INTEL_SOCFPGA 1134 bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug" 1135 select DEBUG_UART_8250 1136 help 1137 Say Y here if you want kernel low-level debugging support 1138 on SOCFPGA(Cyclone 5 and Arria 5) based platforms. 1139 1140 config DEBUG_SUN9I_UART0 1141 bool "Kernel low-level debugging messages via sun9i UART0" 1142 depends on MACH_SUN9I 1143 select DEBUG_UART_8250 1144 help 1145 Say Y here if you want kernel low-level debugging support 1146 on Allwinner A80 based platforms on the UART0. 1147 1148 config DEBUG_SUNXI_UART0 1149 bool "Kernel low-level debugging messages via sunXi UART0" 1150 depends on ARCH_SUNXI 1151 select DEBUG_UART_8250 1152 help 1153 Say Y here if you want kernel low-level debugging support 1154 on Allwinner A1X based platforms on the UART0. 1155 1156 config DEBUG_SUNXI_UART1 1157 bool "Kernel low-level debugging messages via sunXi UART1" 1158 depends on ARCH_SUNXI 1159 select DEBUG_UART_8250 1160 help 1161 Say Y here if you want kernel low-level debugging support 1162 on Allwinner A1X based platforms on the UART1. 1163 1164 config DEBUG_SUNXI_R_UART 1165 bool "Kernel low-level debugging messages via sunXi R_UART" 1166 depends on MACH_SUN6I || MACH_SUN8I 1167 select DEBUG_UART_8250 1168 help 1169 Say Y here if you want kernel low-level debugging support 1170 on Allwinner A31/A23 based platforms on the R_UART. 1171 1172 config DEBUG_SPEAR3XX 1173 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART" 1174 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX 1175 select DEBUG_UART_PL01X 1176 help 1177 Say Y here if you want kernel low-level debugging support 1178 on ST SPEAr based platforms. 1179 1180 config DEBUG_SPEAR13XX 1181 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART" 1182 depends on ARCH_SPEAR13XX 1183 select DEBUG_UART_PL01X 1184 help 1185 Say Y here if you want kernel low-level debugging support 1186 on ST SPEAr13xx based platforms. 1187 1188 config DEBUG_STIH41X_ASC2 1189 bool "Use StiH415/416 ASC2 UART for low-level debug" 1190 depends on ARCH_STI 1191 help 1192 Say Y here if you want kernel low-level debugging support 1193 on STiH415/416 based platforms like b2000, which has 1194 default UART wired up to ASC2. 1195 1196 If unsure, say N. 1197 1198 config DEBUG_STIH41X_SBC_ASC1 1199 bool "Use StiH415/416 SBC ASC1 UART for low-level debug" 1200 depends on ARCH_STI 1201 help 1202 Say Y here if you want kernel low-level debugging support 1203 on STiH415/416 based platforms like b2020. which has 1204 default UART wired up to SBC ASC1. 1205 1206 If unsure, say N. 1207 1208 config DEBUG_STIH418_SBC_ASC0 1209 bool "Use StiH418 SBC ASC0 UART for low-level debug" 1210 depends on ARCH_STI 1211 help 1212 Say Y here if you want kernel low-level debugging support 1213 on STiH418 based platforms which has default UART wired 1214 up to SBC ASC0. 1215 1216 If unsure, say N. 1217 1218 config STM32F4_DEBUG_UART 1219 bool "Use STM32F4 UART for low-level debug" 1220 depends on MACH_STM32F429 || MACH_STM32F469 1221 select DEBUG_STM32_UART 1222 help 1223 Say Y here if you want kernel low-level debugging support 1224 on STM32F4 based platforms, which default UART is wired on 1225 USART1, but another UART instance can be selected by modifying 1226 CONFIG_DEBUG_UART_PHYS. 1227 1228 If unsure, say N. 1229 1230 config STM32F7_DEBUG_UART 1231 bool "Use STM32F7 UART for low-level debug" 1232 depends on MACH_STM32F746 || MACH_STM32F769 1233 select DEBUG_STM32_UART 1234 help 1235 Say Y here if you want kernel low-level debugging support 1236 on STM32F7 based platforms, which default UART is wired on 1237 USART1, but another UART instance can be selected by modifying 1238 CONFIG_DEBUG_UART_PHYS. 1239 1240 If unsure, say N. 1241 1242 config STM32H7_DEBUG_UART 1243 bool "Use STM32H7 UART for low-level debug" 1244 depends on MACH_STM32H743 1245 select DEBUG_STM32_UART 1246 help 1247 Say Y here if you want kernel low-level debugging support 1248 on STM32H7 based platforms, which default UART is wired on 1249 USART1, but another UART instance can be selected by modifying 1250 CONFIG_DEBUG_UART_PHYS. 1251 1252 If unsure, say N. 1253 1254 config STM32MP1_DEBUG_UART 1255 bool "Use STM32MP1 UART for low-level debug" 1256 depends on MACH_STM32MP157 1257 select DEBUG_STM32_UART 1258 help 1259 Say Y here if you want kernel low-level debugging support 1260 on STM32MP1 based platforms, wich default UART is wired on 1261 UART4, but another UART instance can be selected by modifying 1262 CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT. 1263 1264 If unsure, say N. 1265 1266 config TEGRA_DEBUG_UART_AUTO_ODMDATA 1267 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" 1268 depends on ARCH_TEGRA 1269 select DEBUG_TEGRA_UART 1270 help 1271 Automatically determines which UART to use for low-level 1272 debug based on the ODMDATA value. This value is part of 1273 the BCT, and is written to the boot memory device using 1274 nvflash, or other flashing tool. When bits 19:18 are 3, 1275 then bits 17:15 indicate which UART to use; 0/1/2/3/4 1276 are UART A/B/C/D/E. 1277 1278 config TEGRA_DEBUG_UARTA 1279 bool "Kernel low-level debugging messages via Tegra UART A" 1280 depends on ARCH_TEGRA 1281 select DEBUG_TEGRA_UART 1282 help 1283 Say Y here if you want kernel low-level debugging support 1284 on Tegra based platforms. 1285 1286 config TEGRA_DEBUG_UARTB 1287 bool "Kernel low-level debugging messages via Tegra UART B" 1288 depends on ARCH_TEGRA 1289 select DEBUG_TEGRA_UART 1290 help 1291 Say Y here if you want kernel low-level debugging support 1292 on Tegra based platforms. 1293 1294 config TEGRA_DEBUG_UARTC 1295 bool "Kernel low-level debugging messages via Tegra UART C" 1296 depends on ARCH_TEGRA 1297 select DEBUG_TEGRA_UART 1298 help 1299 Say Y here if you want kernel low-level debugging support 1300 on Tegra based platforms. 1301 1302 config TEGRA_DEBUG_UARTD 1303 bool "Kernel low-level debugging messages via Tegra UART D" 1304 depends on ARCH_TEGRA 1305 select DEBUG_TEGRA_UART 1306 help 1307 Say Y here if you want kernel low-level debugging support 1308 on Tegra based platforms. 1309 1310 config TEGRA_DEBUG_UARTE 1311 bool "Kernel low-level debugging messages via Tegra UART E" 1312 depends on ARCH_TEGRA 1313 select DEBUG_TEGRA_UART 1314 help 1315 Say Y here if you want kernel low-level debugging support 1316 on Tegra based platforms. 1317 1318 config DEBUG_UX500_UART 1319 depends on ARCH_U8500 1320 bool "Use Ux500 UART for low-level debug" 1321 help 1322 Say Y here if you want kernel low-level debugging support 1323 on Ux500 based platforms. 1324 1325 config DEBUG_VERSATILE 1326 bool "Kernel low-level debugging messages via ARM Versatile UART" 1327 depends on ARCH_VERSATILE 1328 select DEBUG_UART_PL01X 1329 help 1330 Say Y here if you want kernel low-level debugging support 1331 on ARM Versatile platforms. 1332 1333 config DEBUG_VEXPRESS_UART0_DETECT 1334 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" 1335 depends on ARCH_VEXPRESS && CPU_CP15_MMU 1336 help 1337 This option enables a simple heuristic which tries to determine 1338 the motherboard's memory map variant (original or RS1) and then 1339 choose the relevant UART0 base address. 1340 1341 Note that this will only work with standard A-class core tiles, 1342 and may fail with non-standard SMM or custom software models. 1343 1344 config DEBUG_VEXPRESS_UART0_CA9 1345 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" 1346 depends on ARCH_VEXPRESS 1347 select DEBUG_UART_PL01X 1348 help 1349 This option selects UART0 at 0x10009000. Except for custom models, 1350 this applies only to the V2P-CA9 tile. 1351 1352 config DEBUG_VEXPRESS_UART0_RS1 1353 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" 1354 depends on ARCH_VEXPRESS 1355 select DEBUG_UART_PL01X 1356 help 1357 This option selects UART0 at 0x1c090000. This applies to most 1358 of the tiles using the RS1 memory map, including all new A-class 1359 core tiles, FPGA-based SMMs and software models. 1360 1361 config DEBUG_VEXPRESS_UART0_CRX 1362 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" 1363 depends on ARCH_VEXPRESS && !MMU 1364 select DEBUG_UART_PL01X 1365 help 1366 This option selects UART0 at 0xb0090000. This is appropriate for 1367 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7 1368 1369 config DEBUG_VF_UART 1370 bool "Vybrid UART" 1371 depends on SOC_VF610 1372 help 1373 Say Y here if you want kernel low-level debugging support 1374 on Vybrid based platforms. 1375 1376 config DEBUG_VT8500_UART0 1377 bool "Use UART0 on VIA/Wondermedia SoCs" 1378 depends on ARCH_VT8500 1379 help 1380 This option selects UART0 on VIA/Wondermedia System-on-a-chip 1381 devices, including VT8500, WM8505, WM8650 and WM8850. 1382 1383 config DEBUG_ZYNQ_UART0 1384 bool "Kernel low-level debugging on Xilinx Zynq using UART0" 1385 depends on ARCH_ZYNQ 1386 help 1387 Say Y here if you want the debug print routines to direct 1388 their output to UART0 on the Zynq platform. 1389 1390 config DEBUG_ZYNQ_UART1 1391 bool "Kernel low-level debugging on Xilinx Zynq using UART1" 1392 depends on ARCH_ZYNQ 1393 help 1394 Say Y here if you want the debug print routines to direct 1395 their output to UART1 on the Zynq platform. 1396 1397 If you have a ZC702 board and want early boot messages to 1398 appear on the USB serial adaptor, select this option. 1399 1400 config DEBUG_ICEDCC 1401 bool "Kernel low-level debugging via EmbeddedICE DCC channel" 1402 help 1403 Say Y here if you want the debug print routines to direct 1404 their output to the EmbeddedICE macrocell's DCC channel using 1405 co-processor 14. This is known to work on the ARM9 style ICE 1406 channel and on the XScale with the PEEDI. 1407 1408 Note that the system will appear to hang during boot if there 1409 is nothing connected to read from the DCC. 1410 1411 config DEBUG_SEMIHOSTING 1412 bool "Kernel low-level debug output via semihosting I/O" 1413 help 1414 Semihosting enables code running on an ARM target to use 1415 the I/O facilities on a host debugger/emulator through a 1416 simple SVC call. The host debugger or emulator must have 1417 semihosting enabled for the special svc call to be trapped 1418 otherwise the kernel will crash. 1419 1420 This is known to work with OpenOCD, as well as 1421 ARM's Fast Models, or any other controlling environment 1422 that implements semihosting. 1423 1424 For more details about semihosting, please see 1425 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. 1426 1427 config DEBUG_LL_UART_8250 1428 bool "Kernel low-level debugging via 8250 UART" 1429 help 1430 Say Y here if you wish the debug print routes to direct 1431 their output to an 8250 UART. You can use this option 1432 to provide the parameters for the 8250 UART rather than 1433 selecting one of the platform specific options above if 1434 you know the parameters for the port. 1435 1436 This option is preferred over the platform specific 1437 options; the platform specific options are deprecated 1438 and will be soon removed. 1439 1440 config DEBUG_LL_UART_PL01X 1441 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART" 1442 help 1443 Say Y here if you wish the debug print routes to direct 1444 their output to a PL01x Primecell UART. You can use 1445 this option to provide the parameters for the UART 1446 rather than selecting one of the platform specific 1447 options above if you know the parameters for the port. 1448 1449 This option is preferred over the platform specific 1450 options; the platform specific options are deprecated 1451 and will be soon removed. 1452 1453endchoice 1454 1455config DEBUG_AT91_UART 1456 bool 1457 depends on ARCH_AT91 1458 1459config DEBUG_EXYNOS_UART 1460 bool 1461 1462config DEBUG_S3C2410_UART 1463 bool 1464 select DEBUG_S3C24XX_UART 1465 1466config DEBUG_S3C24XX_UART 1467 bool 1468 1469config DEBUG_S3C64XX_UART 1470 bool 1471 1472config DEBUG_S5PV210_UART 1473 bool 1474 1475config DEBUG_S3C_UART 1476 depends on DEBUG_S3C2410_UART || DEBUG_S3C24XX_UART || \ 1477 DEBUG_S3C64XX_UART || DEBUG_S5PV210_UART || \ 1478 DEBUG_EXYNOS_UART 1479 int 1480 default "0" if DEBUG_S3C_UART0 1481 default "1" if DEBUG_S3C_UART1 1482 default "2" if DEBUG_S3C_UART2 1483 default "3" if DEBUG_S3C_UART3 1484 1485config DEBUG_OMAP2PLUS_UART 1486 bool 1487 depends on ARCH_OMAP2PLUS 1488 1489config DEBUG_IMX_UART_PORT 1490 int "i.MX Debug UART Port Selection" 1491 depends on DEBUG_IMX1_UART || \ 1492 DEBUG_IMX25_UART || \ 1493 DEBUG_IMX27_UART || \ 1494 DEBUG_IMX31_UART || \ 1495 DEBUG_IMX35_UART || \ 1496 DEBUG_IMX50_UART || \ 1497 DEBUG_IMX51_UART || \ 1498 DEBUG_IMX53_UART || \ 1499 DEBUG_IMX6Q_UART || \ 1500 DEBUG_IMX6SL_UART || \ 1501 DEBUG_IMX6SX_UART || \ 1502 DEBUG_IMX6UL_UART || \ 1503 DEBUG_IMX7D_UART 1504 default 1 1505 help 1506 Choose UART port on which kernel low-level debug messages 1507 should be output. 1508 1509config DEBUG_VF_UART_PORT 1510 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART 1511 default 1 1512 range 0 3 1513 depends on SOC_VF610 1514 help 1515 Choose UART port on which kernel low-level debug messages 1516 should be output. 1517 1518config DEBUG_TEGRA_UART 1519 bool 1520 depends on ARCH_TEGRA 1521 1522config DEBUG_STM32_UART 1523 bool 1524 depends on ARCH_STM32 1525 1526config DEBUG_UART_FLOW_CONTROL 1527 bool "Enable flow control (CTS) for the debug UART" 1528 depends on DEBUG_LL 1529 default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC 1530 help 1531 Some UART ports are connected to terminals that will use modem 1532 control signals to indicate whether they are ready to receive text. 1533 In practice this means that the terminal is asserting the special 1534 control signal CTS (Clear To Send). If your debug UART supports 1535 this and your debug terminal will require it, enable this option. 1536 1537config DEBUG_LL_INCLUDE 1538 string 1539 default "debug/sa1100.S" if DEBUG_SA1100 1540 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP 1541 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250 1542 default "debug/at91.S" if DEBUG_AT91_UART 1543 default "debug/asm9260.S" if DEBUG_ASM9260_UART 1544 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2 1545 default "debug/dc21285.S" if DEBUG_DC21285_PORT 1546 default "debug/meson.S" if DEBUG_MESON_UARTAO 1547 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X 1548 default "debug/exynos.S" if DEBUG_EXYNOS_UART 1549 default "debug/icedcc.S" if DEBUG_ICEDCC 1550 default "debug/imx.S" if DEBUG_IMX1_UART || \ 1551 DEBUG_IMX25_UART || \ 1552 DEBUG_IMX27_UART || \ 1553 DEBUG_IMX31_UART || \ 1554 DEBUG_IMX35_UART || \ 1555 DEBUG_IMX50_UART || \ 1556 DEBUG_IMX51_UART || \ 1557 DEBUG_IMX53_UART || \ 1558 DEBUG_IMX6Q_UART || \ 1559 DEBUG_IMX6SL_UART || \ 1560 DEBUG_IMX6SX_UART || \ 1561 DEBUG_IMX6UL_UART || \ 1562 DEBUG_IMX7D_UART 1563 default "debug/msm.S" if DEBUG_QCOM_UARTDM 1564 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART 1565 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2 1566 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2 1567 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4 1568 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0 1569 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2 1570 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0 1571 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1 1572 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2 1573 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4 1574 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2 1575 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0 1576 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1 1577 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4 1578 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART 1579 default "debug/s5pv210.S" if DEBUG_S5PV210_UART 1580 default "debug/sti.S" if DEBUG_STIH41X_ASC2 1581 default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1 1582 default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0 1583 default "debug/stm32.S" if DEBUG_STM32_UART 1584 default "debug/tegra.S" if DEBUG_TEGRA_UART 1585 default "debug/ux500.S" if DEBUG_UX500_UART 1586 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT 1587 default "debug/vf.S" if DEBUG_VF_UART 1588 default "debug/vt8500.S" if DEBUG_VT8500_UART0 1589 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 1590 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART 1591 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0 1592 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART 1593 default "mach/debug-macro.S" 1594 1595# Compatibility options for PL01x 1596config DEBUG_UART_PL01X 1597 bool 1598 1599# Compatibility options for 8250 1600config DEBUG_UART_8250 1601 def_bool ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC 1602 1603config DEBUG_UART_PHYS 1604 hex "Physical base address of debug UART" 1605 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0 1606 default 0x01c28000 if DEBUG_SUNXI_UART0 1607 default 0x01c28400 if DEBUG_SUNXI_UART1 1608 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1 1609 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2 1610 default 0x01f02800 if DEBUG_SUNXI_R_UART 1611 default 0x02530c00 if DEBUG_KEYSTONE_UART0 1612 default 0x02531000 if DEBUG_KEYSTONE_UART1 1613 default 0x03010fe0 if ARCH_RPC 1614 default 0x07000000 if DEBUG_SUN9I_UART0 1615 default 0x09530000 if DEBUG_STIH418_SBC_ASC0 1616 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ 1617 DEBUG_VEXPRESS_UART0_CA9 1618 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT 1619 default 0x10124000 if DEBUG_RK3X_UART0 1620 default 0x10126000 if DEBUG_RK3X_UART1 1621 default 0x101f1000 if DEBUG_VERSATILE 1622 default 0x101fb000 if DEBUG_NOMADIK_UART 1623 default 0x10210000 if DEBUG_RV1108_UART2 1624 default 0x10220000 if DEBUG_RV1108_UART1 1625 default 0x10230000 if DEBUG_RV1108_UART0 1626 default 0x11002000 if DEBUG_MT8127_UART0 1627 default 0x11006000 if DEBUG_MT6589_UART0 1628 default 0x11009000 if DEBUG_MT8135_UART3 1629 default 0x16000000 if DEBUG_INTEGRATOR 1630 default 0x1600d000 if DEBUG_SD5203_UART 1631 default 0x18000300 if DEBUG_BCM_5301X 1632 default 0x18000400 if DEBUG_BCM_HR2 1633 default 0x18023000 if DEBUG_BCM_IPROC_UART3 1634 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1 1635 default 0x1f221000 if DEBUG_MSTARV7_PMUART 1636 default 0x20001000 if DEBUG_HIP01_UART 1637 default 0x20060000 if DEBUG_RK29_UART0 1638 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1639 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1640 default 0x20201000 if DEBUG_BCM2835 1641 default 0x3e000000 if DEBUG_BCM_KONA_UART 1642 default 0x3f201000 if DEBUG_BCM2836 1643 default 0x40010000 if STM32MP1_DEBUG_UART 1644 default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \ 1645 STM32H7_DEBUG_UART 1646 default 0x40028000 if DEBUG_AT91_SAMV7_USART1 1647 default 0x40081000 if DEBUG_LPC18XX_UART0 1648 default 0x40090000 if DEBUG_LPC32XX 1649 default 0x40100000 if DEBUG_PXA_UART1 1650 default 0x42000000 if DEBUG_GEMINI 1651 default 0x44e09000 if DEBUG_AM33XXUART1 1652 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 1653 default 0x48022000 if DEBUG_TI81XXUART2 1654 default 0x48024000 if DEBUG_TI81XXUART3 1655 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \ 1656 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1 1657 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \ 1658 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2 1659 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4 1660 default 0x49020000 if DEBUG_OMAP3UART3 1661 default 0x49042000 if DEBUG_OMAP3UART4 1662 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1663 DEBUG_S3C2410_UART0) 1664 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1665 DEBUG_S3C2410_UART1) 1666 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1667 DEBUG_S3C2410_UART2) 1668 default 0x78000000 if DEBUG_CNS3XXX 1669 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1 1670 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 1671 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 1672 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 1673 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 1674 default 0x80010000 if DEBUG_ASM9260_UART 1675 default 0x80070000 if DEBUG_IMX23_UART 1676 default 0x80074000 if DEBUG_IMX28_UART 1677 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX 1678 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1679 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX 1680 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1681 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1682 default 0xd0000000 if DEBUG_SPEAR3XX 1683 default 0xd0012000 if DEBUG_MVEBU_UART0 1684 default 0xc81004c0 if DEBUG_MESON_UARTAO 1685 default 0xd4017000 if DEBUG_MMP_UART2 1686 default 0xd4018000 if DEBUG_MMP_UART3 1687 default 0xe0000000 if DEBUG_SPEAR13XX 1688 default 0xe1824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3 1689 default 0xe4007000 if DEBUG_HIP04_UART 1690 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0 1691 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1 1692 default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2 1693 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4 1694 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2 1695 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0 1696 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1 1697 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4 1698 default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2 1699 default 0xe8009000 if DEBUG_R7S9210_SCIF4 1700 default 0xf0000000 if DEBUG_DIGICOLOR_UA0 1701 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE 1702 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE 1703 default 0xf7fc9000 if DEBUG_BERLIN_UART 1704 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1 1705 default 0xf8b00000 if DEBUG_HIX5HD2_UART 1706 default 0xf991e000 if DEBUG_QCOM_UARTDM 1707 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3 1708 default 0xfcb00000 if DEBUG_HI3620_UART 1709 default 0xfd883000 if DEBUG_ALPINE_UART0 1710 default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1 1711 default 0xfe800000 if ARCH_IOP32X 1712 default 0xfed32000 if DEBUG_STIH41X_ASC2 1713 default 0xff690000 if DEBUG_RK32_UART2 1714 default 0xffc02000 if DEBUG_SOCFPGA_UART0 1715 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1 1716 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1 1717 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0 1718 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2 1719 default 0xfff36000 if DEBUG_HIGHBANK_UART 1720 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1721 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1722 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1723 default 0xfffe8600 if DEBUG_BCM63XX_UART 1724 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU 1725 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU 1726 depends on ARCH_EP93XX || \ 1727 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1728 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1729 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \ 1730 DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \ 1731 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \ 1732 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \ 1733 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \ 1734 DEBUG_RCAR_GEN2_SCIFA2 || \ 1735 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \ 1736 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \ 1737 DEBUG_S3C64XX_UART || \ 1738 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ 1739 DEBUG_DIGICOLOR_UA0 || \ 1740 DEBUG_AT91_UART || DEBUG_STM32_UART || \ 1741 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \ 1742 DEBUG_STIH418_SBC_ASC0 1743 1744config DEBUG_UART_VIRT 1745 hex "Virtual base address of debug UART" 1746 default 0xc881f000 if DEBUG_RV1108_UART2 1747 default 0xc8821000 if DEBUG_RV1108_UART1 1748 default 0xc8912000 if DEBUG_RV1108_UART0 1749 default 0xe0010fe0 if ARCH_RPC 1750 default 0xe0824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3 1751 default 0xf0010000 if DEBUG_ASM9260_UART 1752 default 0xf0100000 if DEBUG_DIGICOLOR_UA0 1753 default 0xf01fb000 if DEBUG_NOMADIK_UART 1754 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836 1755 default 0xf0221000 if DEBUG_MSTARV7_PMUART 1756 default 0xf1000300 if DEBUG_BCM_5301X 1757 default 0xf1000400 if DEBUG_BCM_HR2 1758 default 0xf1002000 if DEBUG_MT8127_UART0 1759 default 0xf1006000 if DEBUG_MT6589_UART0 1760 default 0xf1009000 if DEBUG_MT8135_UART3 1761 default 0xf1023000 if DEBUG_BCM_IPROC_UART3 1762 default 0xf11f1000 if DEBUG_VERSATILE 1763 default 0xf1600000 if DEBUG_INTEGRATOR 1764 default 0xf1c28000 if DEBUG_SUNXI_UART0 1765 default 0xf1c28400 if DEBUG_SUNXI_UART1 1766 default 0xf1f02800 if DEBUG_SUNXI_R_UART 1767 default 0xf31004c0 if DEBUG_MESON_UARTAO 1768 default 0xf4090000 if DEBUG_LPC32XX 1769 default 0xf4200000 if DEBUG_GEMINI 1770 default 0xf6200000 if DEBUG_PXA_UART1 1771 default 0xf7000000 if DEBUG_SUN9I_UART0 1772 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 1773 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1774 DEBUG_S3C2410_UART0) 1775 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 1776 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 1777 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 1778 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1779 DEBUG_S3C2410_UART1) 1780 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1781 DEBUG_S3C2410_UART2) 1782 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1 1783 default 0xf7fc9000 if DEBUG_BERLIN_UART 1784 default 0xf8007000 if DEBUG_HIP04_UART 1785 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 1786 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 1787 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU 1788 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU 1789 default 0xf9530000 if DEBUG_STIH418_SBC_ASC0 1790 default 0xf9e09000 if DEBUG_AM33XXUART1 1791 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 1792 default 0xfa022000 if DEBUG_TI81XXUART2 1793 default 0xfa024000 if DEBUG_TI81XXUART3 1794 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \ 1795 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1 1796 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \ 1797 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2 1798 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4 1799 default 0xfa71e000 if DEBUG_QCOM_UARTDM 1800 default 0xfb002000 if DEBUG_CNS3XXX 1801 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT 1802 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3 1803 default 0xfb020000 if DEBUG_OMAP3UART3 1804 default 0xfb042000 if DEBUG_OMAP3UART4 1805 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT 1806 default 0xfcfe8600 if DEBUG_BCM63XX_UART 1807 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX 1808 default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1 1809 default 0xfd883000 if DEBUG_ALPINE_UART0 1810 default 0xfdd32000 if DEBUG_STIH41X_ASC2 1811 default 0xfe010000 if STM32MP1_DEBUG_UART 1812 default 0xfe017000 if DEBUG_MMP_UART2 1813 default 0xfe018000 if DEBUG_MMP_UART3 1814 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART 1815 default 0xfe300000 if DEBUG_BCM_KONA_UART 1816 default 0xfe800000 if ARCH_IOP32X 1817 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART 1818 default 0xfeb24000 if DEBUG_RK3X_UART0 1819 default 0xfeb26000 if DEBUG_RK3X_UART1 1820 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0 1821 default 0xfeb31000 if DEBUG_KEYSTONE_UART1 1822 default 0xfec02000 if DEBUG_SOCFPGA_UART0 1823 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1 1824 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1 1825 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE 1826 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE 1827 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0 1828 default 0xfec90000 if DEBUG_RK32_UART2 1829 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1 1830 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART 1831 default 0xfed60000 if DEBUG_RK29_UART0 1832 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1833 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1834 default 0xfedc0000 if DEBUG_EP93XX 1835 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1 1836 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1837 default 0xfec00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1838 default 0xfec00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1839 default 0xfef36000 if DEBUG_HIGHBANK_UART 1840 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1841 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1842 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1843 default 0xffd01000 if DEBUG_HIP01_UART 1844 default DEBUG_UART_PHYS if !MMU 1845 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1846 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1847 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ 1848 DEBUG_S3C64XX_UART || \ 1849 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ 1850 DEBUG_DIGICOLOR_UA0 || \ 1851 DEBUG_AT91_UART || DEBUG_STM32_UART || \ 1852 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \ 1853 DEBUG_STIH418_SBC_ASC0 1854 1855config DEBUG_UART_8250_SHIFT 1856 int "Register offset shift for the 8250 debug UART" 1857 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1858 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \ 1859 DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \ 1860 DEBUG_OMAP7XXUART3 1861 default 3 if DEBUG_MSTARV7_PMUART 1862 default 2 1863 1864config DEBUG_UART_8250_WORD 1865 bool "Use 32-bit accesses for 8250 UART" 1866 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1867 depends on DEBUG_UART_8250_SHIFT >= 2 1868 default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \ 1869 DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \ 1870 DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \ 1871 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \ 1872 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \ 1873 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 1874 1875config DEBUG_UART_8250_PALMCHIP 1876 bool "8250 UART is Palmchip BK-310x" 1877 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1878 help 1879 Palmchip provides a UART implementation compatible with 16550 1880 except for having a different register layout. Say Y here if 1881 the debug UART is of this type. 1882 1883config DEBUG_UNCOMPRESS 1884 bool "Enable decompressor debugging via DEBUG_LL output" 1885 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1886 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ 1887 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \ 1888 !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING 1889 help 1890 This option influences the normal decompressor output for 1891 multiplatform kernels. Normally, multiplatform kernels disable 1892 decompressor output because it is not possible to know where to 1893 send the decompressor output. 1894 1895 When this option is set, the selected DEBUG_LL output method 1896 will be re-used for normal decompressor output on multiplatform 1897 kernels. 1898 1899 1900config UNCOMPRESS_INCLUDE 1901 string 1902 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ 1903 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1904 default "mach/uncompress.h" 1905 1906config EARLY_PRINTK 1907 bool "Early printk" 1908 depends on DEBUG_LL 1909 help 1910 Say Y here if you want to have an early console using the 1911 kernel low-level debugging functions. Add earlyprintk to your 1912 kernel parameters to enable this console. 1913 1914config ARM_KPROBES_TEST 1915 tristate "Kprobes test module" 1916 depends on KPROBES && MODULES 1917 help 1918 Perform tests of kprobes API and instruction set simulation. 1919 1920config PID_IN_CONTEXTIDR 1921 bool "Write the current PID to the CONTEXTIDR register" 1922 depends on CPU_COPY_V6 1923 help 1924 Enabling this option causes the kernel to write the current PID to 1925 the PROCID field of the CONTEXTIDR register, at the expense of some 1926 additional instructions during context switch. Say Y here only if you 1927 are planning to use hardware trace tools with this kernel. 1928 1929source "drivers/hwtracing/coresight/Kconfig"