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 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_AT91_LAN966_FLEXCOM 214 bool "Kernel low-level debugging on LAN966 FLEXCOM USART" 215 select DEBUG_AT91_UART 216 depends on SOC_LAN966 217 help 218 Say Y here if you want kernel low-level debugging support 219 on the FLEXCOM port of LAN966. 220 221 DEBUG_UART_PHYS | DEBUG_UART_VIRT 222 223 0xe0040200 | 0xfd040200 | FLEXCOM0 224 0xe0044200 | 0xfd044200 | FLEXCOM1 225 0xe0060200 | 0xfd060200 | FLEXCOM2 226 0xe0064200 | 0xfd064200 | FLEXCOM3 227 0xe0070200 | 0xfd070200 | FLEXCOM4 228 229 By default, enabling FLEXCOM3 port. Based on requirement, use 230 DEBUG_UART_PHYS and DEBUG_UART_VIRT configurations from above 231 table. 232 233 config DEBUG_BCM2835 234 bool "Kernel low-level debugging on BCM2835 PL011 UART" 235 depends on ARCH_BCM2835 && ARCH_MULTI_V6 236 select DEBUG_UART_PL01X 237 238 config DEBUG_BCM2836 239 bool "Kernel low-level debugging on BCM2836 PL011 UART" 240 depends on ARCH_BCM2835 && ARCH_MULTI_V7 241 select DEBUG_UART_PL01X 242 243 config DEBUG_BCM_5301X 244 bool "Kernel low-level debugging on BCM5301X/NSP UART1" 245 depends on ARCH_BCM_5301X || ARCH_BCM_NSP 246 select DEBUG_UART_8250 247 248 config DEBUG_BCM_HR2 249 bool "Kernel low-level debugging on Hurricane 2 UART2" 250 depends on ARCH_BCM_HR2 251 select DEBUG_UART_8250 252 253 config DEBUG_BCM_IPROC_UART3 254 bool "Kernel low-level debugging on BCM IPROC UART3" 255 depends on ARCH_BCM_CYGNUS 256 select DEBUG_UART_8250 257 help 258 Say Y here if you want the debug print routines to direct 259 their output to the third serial port on these devices. 260 261 config DEBUG_BCM_KONA_UART 262 bool "Kernel low-level debugging messages via BCM KONA UART" 263 depends on ARCH_BCM_MOBILE 264 select DEBUG_UART_8250 265 help 266 Say Y here if you want kernel low-level debugging support 267 on Broadcom SoC platforms. 268 This low level debug works for Broadcom 269 mobile SoCs in the Kona family of chips (e.g. bcm28155, 270 bcm11351, etc...) 271 272 config DEBUG_BCM63XX_UART 273 bool "Kernel low-level debugging on BCM63XX UART" 274 depends on ARCH_BCMBCA 275 276 config DEBUG_BERLIN_UART 277 bool "Marvell Berlin SoC Debug UART" 278 depends on ARCH_BERLIN 279 select DEBUG_UART_8250 280 help 281 Say Y here if you want kernel low-level debugging support 282 on Marvell Berlin SoC based platforms. 283 284 config DEBUG_BRCMSTB_UART 285 bool "Use BRCMSTB UART for low-level debug" 286 depends on ARCH_BRCMSTB 287 help 288 Say Y here if you want the debug print routines to direct 289 their output to the first serial port on these devices. The 290 UART physical and virtual address is automatically provided 291 based on the chip identification register value. 292 293 If you have a Broadcom STB chip and would like early print 294 messages to appear over the UART, select this option. 295 296 config DEBUG_CLPS711X_UART1 297 bool "Kernel low-level debugging messages via UART1" 298 depends on ARCH_CLPS711X 299 help 300 Say Y here if you want the debug print routines to direct 301 their output to the first serial port on these devices. 302 303 config DEBUG_CLPS711X_UART2 304 bool "Kernel low-level debugging messages via UART2" 305 depends on ARCH_CLPS711X 306 help 307 Say Y here if you want the debug print routines to direct 308 their output to the second serial port on these devices. 309 310 config DEBUG_CNS3XXX 311 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx" 312 depends on ARCH_CNS3XXX 313 select DEBUG_UART_8250 314 help 315 Say Y here if you want the debug print routines to direct 316 their output to the CNS3xxx UART0. 317 318 config DEBUG_DAVINCI_DA8XX_UART1 319 bool "Kernel low-level debugging on DaVinci DA8XX using UART1" 320 depends on ARCH_DAVINCI_DA8XX 321 select DEBUG_UART_8250 322 help 323 Say Y here if you want the debug print routines to direct 324 their output to UART1 serial port on DaVinci DA8XX devices. 325 326 config DEBUG_DAVINCI_DA8XX_UART2 327 bool "Kernel low-level debugging on DaVinci DA8XX using UART2" 328 depends on ARCH_DAVINCI_DA8XX 329 select DEBUG_UART_8250 330 help 331 Say Y here if you want the debug print routines to direct 332 their output to UART2 serial port on DaVinci DA8XX devices. 333 334 config DEBUG_DAVINCI_DMx_UART0 335 bool "Kernel low-level debugging on DaVinci DMx using UART0" 336 depends on ARCH_DAVINCI_DMx 337 select DEBUG_UART_8250 338 help 339 Say Y here if you want the debug print routines to direct 340 their output to UART0 serial port on DaVinci DMx devices. 341 342 config DEBUG_DC21285_PORT 343 bool "Kernel low-level debugging messages via footbridge serial port" 344 depends on FOOTBRIDGE 345 help 346 Say Y here if you want the debug print routines to direct 347 their output to the serial port in the DC21285 (Footbridge). 348 349 config DEBUG_DIGICOLOR_UA0 350 bool "Kernel low-level debugging messages via Digicolor UA0" 351 depends on ARCH_DIGICOLOR 352 help 353 Say Y here if you want the debug print routines to direct 354 their output to the UA0 serial port in the CX92755. 355 356 config DEBUG_EP93XX 357 bool "Kernel low-level debugging messages via ep93xx UART" 358 depends on ARCH_EP93XX 359 select DEBUG_UART_PL01X 360 help 361 Say Y here if you want kernel low-level debugging support 362 on Cirrus Logic EP93xx based platforms. 363 364 config DEBUG_FOOTBRIDGE_COM1 365 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" 366 depends on FOOTBRIDGE 367 select DEBUG_UART_8250 368 help 369 Say Y here if you want the debug print routines to direct 370 their output to the 8250 at PCI COM1. 371 372 config DEBUG_GEMINI 373 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART" 374 depends on ARCH_GEMINI 375 select DEBUG_UART_8250 376 help 377 Say Y here if you want kernel low-level debugging support 378 on Cortina Gemini based platforms. 379 380 config DEBUG_HI3620_UART 381 bool "Hisilicon HI3620 Debug UART" 382 depends on ARCH_HI3xxx 383 select DEBUG_UART_PL01X 384 help 385 Say Y here if you want kernel low-level debugging support 386 on HI3620 UART. 387 388 config DEBUG_HIGHBANK_UART 389 bool "Kernel low-level debugging messages via Highbank UART" 390 depends on ARCH_HIGHBANK 391 select DEBUG_UART_PL01X 392 help 393 Say Y here if you want the debug print routines to direct 394 their output to the UART on Highbank based devices. 395 396 config DEBUG_HIP01_UART 397 bool "Hisilicon Hip01 Debug UART" 398 depends on ARCH_HIP01 399 select DEBUG_UART_8250 400 help 401 Say Y here if you want kernel low-level debugging support 402 on HIP01 UART. 403 404 config DEBUG_HIP04_UART 405 bool "Hisilicon HiP04 Debug UART" 406 depends on ARCH_HIP04 407 select DEBUG_UART_8250 408 help 409 Say Y here if you want kernel low-level debugging support 410 on HIP04 UART. 411 412 config DEBUG_HIX5HD2_UART 413 bool "Hisilicon Hix5hd2 Debug UART" 414 depends on ARCH_HIX5HD2 415 select DEBUG_UART_PL01X 416 help 417 Say Y here if you want kernel low-level debugging support 418 on Hix5hd2 UART. 419 420 config DEBUG_IMX1_UART 421 bool "i.MX1 Debug UART" 422 depends on SOC_IMX1 423 help 424 Say Y here if you want kernel low-level debugging support 425 on i.MX1. 426 427 config DEBUG_IMX23_UART 428 bool "i.MX23 Debug UART" 429 depends on SOC_IMX23 430 select DEBUG_UART_PL01X 431 help 432 Say Y here if you want kernel low-level debugging support 433 on i.MX23. 434 435 config DEBUG_IMX25_UART 436 bool "i.MX25 Debug UART" 437 depends on SOC_IMX25 438 help 439 Say Y here if you want kernel low-level debugging support 440 on i.MX25. 441 442 config DEBUG_IMX27_UART 443 bool "i.MX27 Debug UART" 444 depends on SOC_IMX27 445 help 446 Say Y here if you want kernel low-level debugging support 447 on i.MX27. 448 449 config DEBUG_IMX28_UART 450 bool "i.MX28 Debug UART" 451 depends on SOC_IMX28 452 select DEBUG_UART_PL01X 453 help 454 Say Y here if you want kernel low-level debugging support 455 on i.MX28. 456 457 config DEBUG_IMX31_UART 458 bool "i.MX31 Debug UART" 459 depends on SOC_IMX31 460 help 461 Say Y here if you want kernel low-level debugging support 462 on i.MX31. 463 464 config DEBUG_IMX35_UART 465 bool "i.MX35 Debug UART" 466 depends on SOC_IMX35 467 help 468 Say Y here if you want kernel low-level debugging support 469 on i.MX35. 470 471 config DEBUG_IMX50_UART 472 bool "i.MX50 Debug UART" 473 depends on SOC_IMX50 474 help 475 Say Y here if you want kernel low-level debugging support 476 on i.MX50. 477 478 config DEBUG_IMX51_UART 479 bool "i.MX51 Debug UART" 480 depends on SOC_IMX51 481 help 482 Say Y here if you want kernel low-level debugging support 483 on i.MX51. 484 485 config DEBUG_IMX53_UART 486 bool "i.MX53 Debug UART" 487 depends on SOC_IMX53 488 help 489 Say Y here if you want kernel low-level debugging support 490 on i.MX53. 491 492 config DEBUG_IMX6Q_UART 493 bool "i.MX6Q/DL Debug UART" 494 depends on SOC_IMX6Q 495 help 496 Say Y here if you want kernel low-level debugging support 497 on i.MX6Q/DL. 498 499 config DEBUG_IMX6SL_UART 500 bool "i.MX6SL Debug UART" 501 depends on SOC_IMX6SL 502 help 503 Say Y here if you want kernel low-level debugging support 504 on i.MX6SL. 505 506 config DEBUG_IMX6SX_UART 507 bool "i.MX6SX Debug UART" 508 depends on SOC_IMX6SX 509 help 510 Say Y here if you want kernel low-level debugging support 511 on i.MX6SX. 512 513 config DEBUG_IMX6UL_UART 514 bool "i.MX6UL Debug UART" 515 depends on SOC_IMX6UL 516 help 517 Say Y here if you want kernel low-level debugging support 518 on i.MX6UL. 519 520 config DEBUG_IMX7D_UART 521 bool "i.MX7D Debug UART" 522 depends on SOC_IMX7D 523 help 524 Say Y here if you want kernel low-level debugging support 525 on i.MX7D. 526 527 config DEBUG_INTEGRATOR 528 bool "Kernel low-level debugging messages via ARM Integrator UART" 529 depends on ARCH_INTEGRATOR 530 select DEBUG_UART_PL01X 531 help 532 Say Y here if you want kernel low-level debugging support 533 on ARM Integrator platforms. 534 535 config DEBUG_KEYSTONE_UART0 536 bool "Kernel low-level debugging on KEYSTONE2 using UART0" 537 depends on ARCH_KEYSTONE 538 select DEBUG_UART_8250 539 help 540 Say Y here if you want the debug print routines to direct 541 their output to UART0 serial port on KEYSTONE2 devices. 542 543 config DEBUG_KEYSTONE_UART1 544 bool "Kernel low-level debugging on KEYSTONE2 using UART1" 545 depends on ARCH_KEYSTONE 546 select DEBUG_UART_8250 547 help 548 Say Y here if you want the debug print routines to direct 549 their output to UART1 serial port on KEYSTONE2 devices. 550 551 config DEBUG_LPC18XX_UART0 552 bool "Kernel low-level debugging via LPC18xx/43xx UART0" 553 depends on ARCH_LPC18XX 554 select DEBUG_UART_8250 555 help 556 Say Y here if you want kernel low-level debugging support 557 on NXP LPC18xx/43xx UART0. 558 559 config DEBUG_LPC32XX 560 bool "Kernel low-level debugging messages via NXP LPC32xx UART" 561 depends on ARCH_LPC32XX 562 select DEBUG_UART_8250 563 help 564 Say Y here if you want kernel low-level debugging support 565 on NXP LPC32xx based platforms. 566 567 config DEBUG_MESON_UARTAO 568 bool "Kernel low-level debugging via Meson6 UARTAO" 569 depends on ARCH_MESON 570 help 571 Say Y here if you want kernel low-lever debugging support 572 on Amlogic Meson6 based platforms on the UARTAO. 573 574 config DEBUG_MMP_UART2 575 bool "Kernel low-level debugging message via MMP UART2" 576 depends on ARCH_MMP 577 select DEBUG_UART_8250 578 help 579 Say Y here if you want kernel low-level debugging support 580 on MMP UART2. 581 582 config DEBUG_MMP_UART3 583 bool "Kernel low-level debugging message via MMP UART3" 584 depends on ARCH_MMP 585 select DEBUG_UART_8250 586 help 587 Say Y here if you want kernel low-level debugging support 588 on MMP UART3. 589 590 config DEBUG_MVEBU_UART0 591 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)" 592 depends on ARCH_MVEBU 593 depends on ARCH_MVEBU && CPU_V7 594 select DEBUG_UART_8250 595 help 596 Say Y here if you want kernel low-level debugging support 597 on MVEBU based platforms on UART0. 598 599 This option should be used with the old bootloaders 600 that left the internal registers mapped at 601 0xd0000000. As of today, this is the case on 602 platforms such as the Globalscale Mirabox or the 603 Plathome OpenBlocks AX3, when using the original 604 bootloader. 605 606 This option will not work on older Marvell platforms 607 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick 608 the "new bootloader" variant. 609 610 If the wrong DEBUG_MVEBU_UART* option is selected, 611 when u-boot hands over to the kernel, the system 612 silently crashes, with no serial output at all. 613 614 config DEBUG_MVEBU_UART0_ALTERNATE 615 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)" 616 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X 617 select DEBUG_UART_8250 618 help 619 Say Y here if you want kernel low-level debugging support 620 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx, 621 Kirkwood, Dove, MV78xx0, Orion5x). 622 623 624 This option should be used with the new bootloaders 625 that remap the internal registers at 0xf1000000. 626 627 If the wrong DEBUG_MVEBU_UART* option is selected, 628 when u-boot hands over to the kernel, the system 629 silently crashes, with no serial output at all. 630 631 config DEBUG_MVEBU_UART1_ALTERNATE 632 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)" 633 depends on ARCH_MVEBU 634 select DEBUG_UART_8250 635 help 636 Say Y here if you want kernel low-level debugging support 637 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx, 638 Kirkwood, Dove, MV78xx0, Orion5x). 639 640 This option should be used with the new bootloaders 641 that remap the internal registers at 0xf1000000. 642 All of the older (pre Armada XP/370) platforms also use 643 this address, regardless of the boot loader version. 644 645 If the wrong DEBUG_MVEBU_UART* option is selected, 646 when u-boot hands over to the kernel, the system 647 silently crashes, with no serial output at all. 648 649 config DEBUG_MSTARV7_PMUART 650 bool "Kernel low-level debugging messages via MSTARV7 PM UART" 651 depends on ARCH_MSTARV7 652 select DEBUG_UART_8250 653 help 654 Say Y here if you want kernel low-level debugging support 655 for MSTAR ARMv7-based platforms on PM UART. 656 657 config DEBUG_MT6589_UART0 658 bool "Mediatek mt6589 UART0" 659 depends on ARCH_MEDIATEK 660 select DEBUG_UART_8250 661 help 662 Say Y here if you want kernel low-level debugging support 663 for Mediatek mt6589 based platforms on UART0. 664 665 config DEBUG_MT8127_UART0 666 bool "Mediatek mt8127/mt6592 UART0" 667 depends on ARCH_MEDIATEK 668 select DEBUG_UART_8250 669 help 670 Say Y here if you want kernel low-level debugging support 671 for Mediatek mt8127 based platforms on UART0. 672 673 config DEBUG_MT8135_UART3 674 bool "Mediatek mt8135 UART3" 675 depends on ARCH_MEDIATEK 676 select DEBUG_UART_8250 677 help 678 Say Y here if you want kernel low-level debugging support 679 for Mediatek mt8135 based platforms on UART3. 680 681 config DEBUG_NOMADIK_UART 682 bool "Kernel low-level debugging messages via NOMADIK UART" 683 depends on ARCH_NOMADIK 684 select DEBUG_UART_PL01X 685 help 686 Say Y here if you want kernel low-level debugging support 687 on NOMADIK based platforms. 688 689 config DEBUG_NSPIRE_CLASSIC_UART 690 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" 691 depends on ARCH_NSPIRE 692 select DEBUG_UART_8250 693 help 694 Say Y here if you want kernel low-level debugging support 695 on TI-NSPIRE classic models. 696 697 config DEBUG_NSPIRE_CX_UART 698 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" 699 depends on ARCH_NSPIRE 700 select DEBUG_UART_PL01X 701 help 702 Say Y here if you want kernel low-level debugging support 703 on TI-NSPIRE CX models. 704 705 config DEBUG_OMAP1UART1 706 bool "Kernel low-level debugging via OMAP1 UART1" 707 depends on ARCH_OMAP1 708 select DEBUG_UART_8250 709 help 710 Say Y here if you want kernel low-level debugging support 711 on OMAP1 based platforms (except OMAP730) on the UART1. 712 713 config DEBUG_OMAP1UART2 714 bool "Kernel low-level debugging via OMAP1 UART2" 715 depends on ARCH_OMAP1 716 select DEBUG_UART_8250 717 help 718 Say Y here if you want kernel low-level debugging support 719 on OMAP1 based platforms (except OMAP730) on the UART2. 720 721 config DEBUG_OMAP1UART3 722 bool "Kernel low-level debugging via OMAP1 UART3" 723 depends on ARCH_OMAP1 724 select DEBUG_UART_8250 725 help 726 Say Y here if you want kernel low-level debugging support 727 on OMAP1 based platforms (except OMAP730) on the UART3. 728 729 config DEBUG_OMAP2UART1 730 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" 731 depends on ARCH_OMAP2PLUS 732 select DEBUG_UART_8250 733 help 734 This covers at least h4, 2430sdp, 3430sdp, 3630sdp, 735 omap3 torpedo and 3530 lv som. 736 737 config DEBUG_OMAP2UART2 738 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2" 739 depends on ARCH_OMAP2PLUS 740 select DEBUG_UART_8250 741 742 config DEBUG_OMAP2UART3 743 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)" 744 depends on ARCH_OMAP2PLUS 745 select DEBUG_UART_8250 746 747 config DEBUG_OMAP3UART3 748 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)" 749 depends on ARCH_OMAP2PLUS 750 select DEBUG_UART_8250 751 help 752 This covers at least cm_t3x, beagle, crane, devkit8000, 753 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, 754 and 3517evm. 755 756 config DEBUG_OMAP4UART3 757 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" 758 depends on ARCH_OMAP2PLUS 759 select DEBUG_UART_8250 760 761 config DEBUG_OMAP3UART4 762 bool "Kernel low-level debugging messages via OMAP36XX UART4" 763 depends on ARCH_OMAP2PLUS 764 select DEBUG_UART_8250 765 766 config DEBUG_OMAP4UART4 767 bool "Kernel low-level debugging messages via OMAP4/5 UART4" 768 depends on ARCH_OMAP2PLUS 769 select DEBUG_UART_8250 770 771 config DEBUG_OMAP7XXUART1 772 bool "Kernel low-level debugging via OMAP730 UART1" 773 depends on ARCH_OMAP730 774 select DEBUG_UART_8250 775 help 776 Say Y here if you want kernel low-level debugging support 777 on OMAP730 based platforms on the UART1. 778 779 config DEBUG_OMAP7XXUART2 780 bool "Kernel low-level debugging via OMAP730 UART2" 781 depends on ARCH_OMAP730 782 select DEBUG_UART_8250 783 help 784 Say Y here if you want kernel low-level debugging support 785 on OMAP730 based platforms on the UART2. 786 787 config DEBUG_OMAP7XXUART3 788 bool "Kernel low-level debugging via OMAP730 UART3" 789 depends on ARCH_OMAP730 790 select DEBUG_UART_8250 791 help 792 Say Y here if you want kernel low-level debugging support 793 on OMAP730 based platforms on the UART3. 794 795 config DEBUG_TI81XXUART1 796 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)" 797 depends on ARCH_OMAP2PLUS 798 select DEBUG_UART_8250 799 800 config DEBUG_TI81XXUART2 801 bool "Kernel low-level debugging messages via TI81XX UART2" 802 depends on ARCH_OMAP2PLUS 803 select DEBUG_UART_8250 804 805 config DEBUG_TI81XXUART3 806 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)" 807 depends on ARCH_OMAP2PLUS 808 select DEBUG_UART_8250 809 810 config DEBUG_AM33XXUART1 811 bool "Kernel low-level debugging messages via AM33XX UART1" 812 depends on ARCH_OMAP2PLUS 813 select DEBUG_UART_8250 814 815 config DEBUG_ZOOM_UART 816 bool "Kernel low-level debugging messages via Zoom2/3 UART" 817 depends on ARCH_OMAP2PLUS 818 select DEBUG_OMAP2PLUS_UART 819 820 config DEBUG_PXA_UART1 821 depends on ARCH_PXA 822 bool "Use PXA UART1 for low-level debug" 823 select DEBUG_UART_8250 824 help 825 Say Y here if you want kernel low-level debugging support 826 on PXA UART1. 827 828 config DEBUG_QCOM_UARTDM 829 bool "Kernel low-level debugging messages via QCOM UARTDM" 830 depends on ARCH_QCOM 831 help 832 Say Y here if you want the debug print routines to direct 833 their output to the serial port on Qualcomm devices. 834 835 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT 836 APQ8064 0x16640000 0xf0040000 837 APQ8084 0xf995e000 0xfa75e000 838 IPQ4019 0x078af000 0xf78af000 839 MSM8X60 0x19c40000 0xf0040000 840 MSM8960 0x16440000 0xf0040000 841 MSM8974 0xf991e000 0xfa71e000 842 843 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration 844 options based on your needs. 845 846 config DEBUG_REALVIEW_STD_PORT 847 bool "RealView Default UART" 848 depends on ARCH_REALVIEW 849 select DEBUG_UART_PL01X 850 help 851 Say Y here if you want the debug print routines to direct 852 their output to the serial port on RealView EB, PB11MP, PBA8 853 and PBX platforms. 854 855 config DEBUG_REALVIEW_PB1176_PORT 856 bool "RealView PB1176 UART" 857 depends on MACH_REALVIEW_PB1176 858 select DEBUG_UART_PL01X 859 help 860 Say Y here if you want the debug print routines to direct 861 their output to the standard serial port on the RealView 862 PB1176 platform. 863 864 config DEBUG_RV1108_UART0 865 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0" 866 depends on ARCH_ROCKCHIP 867 select DEBUG_UART_8250 868 help 869 Say Y here if you want kernel low-level debugging support 870 on Rockchip RV1108 based platforms. 871 872 config DEBUG_RV1108_UART1 873 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1" 874 depends on ARCH_ROCKCHIP 875 select DEBUG_UART_8250 876 help 877 Say Y here if you want kernel low-level debugging support 878 on Rockchip RV1108 based platforms. 879 880 config DEBUG_RV1108_UART2 881 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2" 882 depends on ARCH_ROCKCHIP 883 select DEBUG_UART_8250 884 help 885 Say Y here if you want kernel low-level debugging support 886 on Rockchip RV1108 based platforms. 887 888 config DEBUG_RK29_UART0 889 bool "Kernel low-level debugging messages via Rockchip RK29 UART0" 890 depends on ARCH_ROCKCHIP 891 select DEBUG_UART_8250 892 help 893 Say Y here if you want kernel low-level debugging support 894 on Rockchip based platforms. 895 896 config DEBUG_RK29_UART1 897 bool "Kernel low-level debugging messages via Rockchip RK29 UART1" 898 depends on ARCH_ROCKCHIP 899 select DEBUG_UART_8250 900 help 901 Say Y here if you want kernel low-level debugging support 902 on Rockchip based platforms. 903 904 config DEBUG_RK29_UART2 905 bool "Kernel low-level debugging messages via Rockchip RK29 UART2" 906 depends on ARCH_ROCKCHIP 907 select DEBUG_UART_8250 908 help 909 Say Y here if you want kernel low-level debugging support 910 on Rockchip based platforms. 911 912 config DEBUG_RK3X_UART0 913 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0" 914 depends on ARCH_ROCKCHIP 915 select DEBUG_UART_8250 916 help 917 Say Y here if you want kernel low-level debugging support 918 on Rockchip based platforms. 919 920 config DEBUG_RK3X_UART1 921 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1" 922 depends on ARCH_ROCKCHIP 923 select DEBUG_UART_8250 924 help 925 Say Y here if you want kernel low-level debugging support 926 on Rockchip based platforms. 927 928 config DEBUG_RK3X_UART2 929 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2" 930 depends on ARCH_ROCKCHIP 931 select DEBUG_UART_8250 932 help 933 Say Y here if you want kernel low-level debugging support 934 on Rockchip based platforms. 935 936 config DEBUG_RK3X_UART3 937 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3" 938 depends on ARCH_ROCKCHIP 939 select DEBUG_UART_8250 940 help 941 Say Y here if you want kernel low-level debugging support 942 on Rockchip based platforms. 943 944 config DEBUG_RK32_UART2 945 bool "Kernel low-level debugging messages via Rockchip RK32 UART2" 946 depends on ARCH_ROCKCHIP 947 select DEBUG_UART_8250 948 help 949 Say Y here if you want kernel low-level debugging support 950 on Rockchip RK32xx based platforms. 951 952 config DEBUG_R7S72100_SCIF2 953 bool "Kernel low-level debugging messages via SCIF2 on R7S72100" 954 depends on ARCH_R7S72100 955 help 956 Say Y here if you want kernel low-level debugging support 957 via SCIF2 on Renesas RZ/A1H (R7S72100). 958 959 config DEBUG_R7S9210_SCIF2 960 bool "Kernel low-level debugging messages via SCIF2 on R7S9210" 961 depends on ARCH_R7S9210 962 help 963 Say Y here if you want kernel low-level debugging support 964 via SCIF2 on Renesas RZ/A2M (R7S9210). 965 966 config DEBUG_R7S9210_SCIF4 967 bool "Kernel low-level debugging messages via SCIF4 on R7S9210" 968 depends on ARCH_R7S9210 969 help 970 Say Y here if you want kernel low-level debugging support 971 via SCIF4 on Renesas RZ/A2M (R7S9210). 972 973 config DEBUG_RCAR_GEN1_SCIF0 974 bool "Kernel low-level debugging messages via SCIF0 on R8A7778" 975 depends on ARCH_R8A7778 976 help 977 Say Y here if you want kernel low-level debugging support 978 via SCIF0 on Renesas R-Car M1A (R8A7778). 979 980 config DEBUG_RCAR_GEN1_SCIF2 981 bool "Kernel low-level debugging messages via SCIF2 on R8A7779" 982 depends on ARCH_R8A7779 983 help 984 Say Y here if you want kernel low-level debugging support 985 via SCIF2 on Renesas R-Car H1 (R8A7779). 986 987 config DEBUG_RCAR_GEN2_SCIF0 988 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1" 989 depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \ 990 ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793 991 help 992 Say Y here if you want kernel low-level debugging support 993 via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744), 994 R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or 995 M2-N (R8A7793). 996 997 config DEBUG_RCAR_GEN2_SCIF1 998 bool "Kernel low-level debugging messages via SCIF1 on R8A77470" 999 depends on ARCH_R8A77470 1000 help 1001 Say Y here if you want kernel low-level debugging support 1002 via SCIF1 on Renesas RZ/G1C (R8A77470). 1003 1004 config DEBUG_RCAR_GEN2_SCIF2 1005 bool "Kernel low-level debugging messages via SCIF2 on R8A7794" 1006 depends on ARCH_R8A7794 1007 help 1008 Say Y here if you want kernel low-level debugging support 1009 via SCIF2 on Renesas R-Car E2 (R8A7794). 1010 1011 config DEBUG_RCAR_GEN2_SCIF4 1012 bool "Kernel low-level debugging messages via SCIF4 on R8A7745" 1013 depends on ARCH_R8A7745 1014 help 1015 Say Y here if you want kernel low-level debugging support 1016 via SCIF4 on Renesas RZ/G1E (R8A7745). 1017 1018 config DEBUG_RCAR_GEN2_SCIFA2 1019 bool "Kernel low-level debugging messages via SCIFA2 on R8A7742" 1020 depends on ARCH_R8A7742 1021 help 1022 Say Y here if you want kernel low-level debugging support 1023 via SCIFA2 on Renesas RZ/G1H (R8A7742). 1024 1025 config DEBUG_RMOBILE_SCIFA0 1026 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4" 1027 depends on ARCH_R8A73A4 1028 help 1029 Say Y here if you want kernel low-level debugging support 1030 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4). 1031 1032 config DEBUG_RMOBILE_SCIFA1 1033 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740" 1034 depends on ARCH_R8A7740 1035 help 1036 Say Y here if you want kernel low-level debugging support 1037 via SCIFA1 on Renesas R-Mobile A1 (R8A7740). 1038 1039 config DEBUG_RMOBILE_SCIFA4 1040 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0" 1041 depends on ARCH_SH73A0 1042 help 1043 Say Y here if you want kernel low-level debugging support 1044 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0). 1045 1046 config DEBUG_S3C_UART0 1047 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS 1048 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1049 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 1050 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1051 select DEBUG_S5PV210_UART if ARCH_S5PV210 1052 bool "Use Samsung S3C UART 0 for low-level debug" 1053 help 1054 Say Y here if you want the debug print routines to direct 1055 their output to UART 0. The port must have been initialised 1056 by the boot-loader before use. 1057 1058 config DEBUG_S3C_UART1 1059 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS 1060 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1061 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 1062 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1063 select DEBUG_S5PV210_UART if ARCH_S5PV210 1064 bool "Use Samsung S3C UART 1 for low-level debug" 1065 help 1066 Say Y here if you want the debug print routines to direct 1067 their output to UART 1. The port must have been initialised 1068 by the boot-loader before use. 1069 1070 config DEBUG_S3C_UART2 1071 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS 1072 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1073 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 1074 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1075 select DEBUG_S5PV210_UART if ARCH_S5PV210 1076 bool "Use Samsung S3C UART 2 for low-level debug" 1077 help 1078 Say Y here if you want the debug print routines to direct 1079 their output to UART 2. The port must have been initialised 1080 by the boot-loader before use. 1081 1082 config DEBUG_S3C_UART3 1083 depends on ARCH_EXYNOS || ARCH_S5PV210 1084 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1085 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1086 select DEBUG_S5PV210_UART if ARCH_S5PV210 1087 bool "Use Samsung S3C UART 3 for low-level debug" 1088 help 1089 Say Y here if you want the debug print routines to direct 1090 their output to UART 3. The port must have been initialised 1091 by the boot-loader before use. 1092 1093 config DEBUG_S3C2410_UART0 1094 depends on ARCH_S3C24XX 1095 select DEBUG_S3C2410_UART 1096 bool "Use S3C2410/S3C2412 UART 0 for low-level debug" 1097 help 1098 Say Y here if you want the debug print routines to direct 1099 their output to UART 0. The port must have been initialised 1100 by the boot-loader before use. 1101 1102 config DEBUG_S3C2410_UART1 1103 depends on ARCH_S3C24XX 1104 select DEBUG_S3C2410_UART 1105 bool "Use S3C2410/S3C2412 UART 1 for low-level debug" 1106 help 1107 Say Y here if you want the debug print routines to direct 1108 their output to UART 1. The port must have been initialised 1109 by the boot-loader before use. 1110 1111 config DEBUG_S3C2410_UART2 1112 depends on ARCH_S3C24XX 1113 select DEBUG_S3C2410_UART 1114 bool "Use S3C2410/S3C2412 UART 2 for low-level debug" 1115 help 1116 Say Y here if you want the debug print routines to direct 1117 their output to UART 2. The port must have been initialised 1118 by the boot-loader before use. 1119 1120 config DEBUG_SA1100 1121 depends on ARCH_SA1100 1122 bool "Use SA1100 UARTs for low-level debug" 1123 help 1124 Say Y here if you want kernel low-level debugging support 1125 on SA-11x0 UART ports. The kernel will check for the first 1126 enabled UART in a sequence 3-1-2. 1127 1128 config DEBUG_SD5203_UART 1129 bool "Hisilicon SD5203 Debug UART" 1130 depends on ARCH_SD5203 1131 select DEBUG_UART_8250 1132 help 1133 Say Y here if you want kernel low-level debugging support 1134 on SD5203 UART. 1135 1136 config DEBUG_SOCFPGA_UART0 1137 depends on ARCH_INTEL_SOCFPGA 1138 bool "Use SOCFPGA UART0 for low-level debug" 1139 select DEBUG_UART_8250 1140 help 1141 Say Y here if you want kernel low-level debugging support 1142 on SOCFPGA(Cyclone 5 and Arria 5) based platforms. 1143 1144 config DEBUG_SOCFPGA_ARRIA10_UART1 1145 depends on ARCH_INTEL_SOCFPGA 1146 bool "Use SOCFPGA Arria10 UART1 for low-level debug" 1147 select DEBUG_UART_8250 1148 help 1149 Say Y here if you want kernel low-level debugging support 1150 on SOCFPGA(Arria 10) based platforms. 1151 1152 config DEBUG_SOCFPGA_CYCLONE5_UART1 1153 depends on ARCH_INTEL_SOCFPGA 1154 bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug" 1155 select DEBUG_UART_8250 1156 help 1157 Say Y here if you want kernel low-level debugging support 1158 on SOCFPGA(Cyclone 5 and Arria 5) based platforms. 1159 1160 config DEBUG_SUN9I_UART0 1161 bool "Kernel low-level debugging messages via sun9i UART0" 1162 depends on MACH_SUN9I 1163 select DEBUG_UART_8250 1164 help 1165 Say Y here if you want kernel low-level debugging support 1166 on Allwinner A80 based platforms on the UART0. 1167 1168 config DEBUG_SUNXI_UART0 1169 bool "Kernel low-level debugging messages via sunXi UART0" 1170 depends on ARCH_SUNXI 1171 select DEBUG_UART_8250 1172 help 1173 Say Y here if you want kernel low-level debugging support 1174 on Allwinner A1X based platforms on the UART0. 1175 1176 config DEBUG_SUNXI_UART1 1177 bool "Kernel low-level debugging messages via sunXi UART1" 1178 depends on ARCH_SUNXI 1179 select DEBUG_UART_8250 1180 help 1181 Say Y here if you want kernel low-level debugging support 1182 on Allwinner A1X based platforms on the UART1. 1183 1184 config DEBUG_SUNXI_R_UART 1185 bool "Kernel low-level debugging messages via sunXi R_UART" 1186 depends on MACH_SUN6I || MACH_SUN8I 1187 select DEBUG_UART_8250 1188 help 1189 Say Y here if you want kernel low-level debugging support 1190 on Allwinner A31/A23 based platforms on the R_UART. 1191 1192 config DEBUG_SPEAR3XX 1193 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART" 1194 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX 1195 select DEBUG_UART_PL01X 1196 help 1197 Say Y here if you want kernel low-level debugging support 1198 on ST SPEAr based platforms. 1199 1200 config DEBUG_SPEAR13XX 1201 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART" 1202 depends on ARCH_SPEAR13XX 1203 select DEBUG_UART_PL01X 1204 help 1205 Say Y here if you want kernel low-level debugging support 1206 on ST SPEAr13xx based platforms. 1207 1208 config DEBUG_STIH41X_ASC2 1209 bool "Use StiH415/416 ASC2 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 STiH415/416 based platforms like b2000, which has 1214 default UART wired up to ASC2. 1215 1216 If unsure, say N. 1217 1218 config DEBUG_STIH41X_SBC_ASC1 1219 bool "Use StiH415/416 SBC ASC1 UART for low-level debug" 1220 depends on ARCH_STI 1221 help 1222 Say Y here if you want kernel low-level debugging support 1223 on STiH415/416 based platforms like b2020. which has 1224 default UART wired up to SBC ASC1. 1225 1226 If unsure, say N. 1227 1228 config DEBUG_STIH418_SBC_ASC0 1229 bool "Use StiH418 SBC ASC0 UART for low-level debug" 1230 depends on ARCH_STI 1231 help 1232 Say Y here if you want kernel low-level debugging support 1233 on STiH418 based platforms which has default UART wired 1234 up to SBC ASC0. 1235 1236 If unsure, say N. 1237 1238 config STM32F4_DEBUG_UART 1239 bool "Use STM32F4 UART for low-level debug" 1240 depends on MACH_STM32F429 || MACH_STM32F469 1241 select DEBUG_STM32_UART 1242 help 1243 Say Y here if you want kernel low-level debugging support 1244 on STM32F4 based platforms, which default UART is wired on 1245 USART1, but another UART instance can be selected by modifying 1246 CONFIG_DEBUG_UART_PHYS. 1247 1248 If unsure, say N. 1249 1250 config STM32F7_DEBUG_UART 1251 bool "Use STM32F7 UART for low-level debug" 1252 depends on MACH_STM32F746 || MACH_STM32F769 1253 select DEBUG_STM32_UART 1254 help 1255 Say Y here if you want kernel low-level debugging support 1256 on STM32F7 based platforms, which default UART is wired on 1257 USART1, but another UART instance can be selected by modifying 1258 CONFIG_DEBUG_UART_PHYS. 1259 1260 If unsure, say N. 1261 1262 config STM32H7_DEBUG_UART 1263 bool "Use STM32H7 UART for low-level debug" 1264 depends on MACH_STM32H743 1265 select DEBUG_STM32_UART 1266 help 1267 Say Y here if you want kernel low-level debugging support 1268 on STM32H7 based platforms, which default UART is wired on 1269 USART1, but another UART instance can be selected by modifying 1270 CONFIG_DEBUG_UART_PHYS. 1271 1272 If unsure, say N. 1273 1274 config STM32MP1_DEBUG_UART 1275 bool "Use STM32MP1 UART for low-level debug" 1276 depends on MACH_STM32MP157 1277 select DEBUG_STM32_UART 1278 help 1279 Say Y here if you want kernel low-level debugging support 1280 on STM32MP1 based platforms, wich default UART is wired on 1281 UART4, but another UART instance can be selected by modifying 1282 CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT. 1283 1284 If unsure, say N. 1285 1286 config TEGRA_DEBUG_UART_AUTO_ODMDATA 1287 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" 1288 depends on ARCH_TEGRA 1289 select DEBUG_TEGRA_UART 1290 help 1291 Automatically determines which UART to use for low-level 1292 debug based on the ODMDATA value. This value is part of 1293 the BCT, and is written to the boot memory device using 1294 nvflash, or other flashing tool. When bits 19:18 are 3, 1295 then bits 17:15 indicate which UART to use; 0/1/2/3/4 1296 are UART A/B/C/D/E. 1297 1298 config TEGRA_DEBUG_UARTA 1299 bool "Kernel low-level debugging messages via Tegra UART A" 1300 depends on ARCH_TEGRA 1301 select DEBUG_TEGRA_UART 1302 help 1303 Say Y here if you want kernel low-level debugging support 1304 on Tegra based platforms. 1305 1306 config TEGRA_DEBUG_UARTB 1307 bool "Kernel low-level debugging messages via Tegra UART B" 1308 depends on ARCH_TEGRA 1309 select DEBUG_TEGRA_UART 1310 help 1311 Say Y here if you want kernel low-level debugging support 1312 on Tegra based platforms. 1313 1314 config TEGRA_DEBUG_UARTC 1315 bool "Kernel low-level debugging messages via Tegra UART C" 1316 depends on ARCH_TEGRA 1317 select DEBUG_TEGRA_UART 1318 help 1319 Say Y here if you want kernel low-level debugging support 1320 on Tegra based platforms. 1321 1322 config TEGRA_DEBUG_UARTD 1323 bool "Kernel low-level debugging messages via Tegra UART D" 1324 depends on ARCH_TEGRA 1325 select DEBUG_TEGRA_UART 1326 help 1327 Say Y here if you want kernel low-level debugging support 1328 on Tegra based platforms. 1329 1330 config TEGRA_DEBUG_UARTE 1331 bool "Kernel low-level debugging messages via Tegra UART E" 1332 depends on ARCH_TEGRA 1333 select DEBUG_TEGRA_UART 1334 help 1335 Say Y here if you want kernel low-level debugging support 1336 on Tegra based platforms. 1337 1338 config DEBUG_UX500_UART 1339 depends on ARCH_U8500 1340 bool "Use Ux500 UART for low-level debug" 1341 help 1342 Say Y here if you want kernel low-level debugging support 1343 on Ux500 based platforms. 1344 1345 config DEBUG_VERSATILE 1346 bool "Kernel low-level debugging messages via ARM Versatile UART" 1347 depends on ARCH_VERSATILE 1348 select DEBUG_UART_PL01X 1349 help 1350 Say Y here if you want kernel low-level debugging support 1351 on ARM Versatile platforms. 1352 1353 config DEBUG_VEXPRESS_UART0_DETECT 1354 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" 1355 depends on ARCH_VEXPRESS && CPU_CP15_MMU 1356 help 1357 This option enables a simple heuristic which tries to determine 1358 the motherboard's memory map variant (original or RS1) and then 1359 choose the relevant UART0 base address. 1360 1361 Note that this will only work with standard A-class core tiles, 1362 and may fail with non-standard SMM or custom software models. 1363 1364 config DEBUG_VEXPRESS_UART0_CA9 1365 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" 1366 depends on ARCH_VEXPRESS 1367 select DEBUG_UART_PL01X 1368 help 1369 This option selects UART0 at 0x10009000. Except for custom models, 1370 this applies only to the V2P-CA9 tile. 1371 1372 config DEBUG_VEXPRESS_UART0_RS1 1373 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" 1374 depends on ARCH_VEXPRESS 1375 select DEBUG_UART_PL01X 1376 help 1377 This option selects UART0 at 0x1c090000. This applies to most 1378 of the tiles using the RS1 memory map, including all new A-class 1379 core tiles, FPGA-based SMMs and software models. 1380 1381 config DEBUG_VEXPRESS_UART0_CRX 1382 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" 1383 depends on ARCH_VEXPRESS && !MMU 1384 select DEBUG_UART_PL01X 1385 help 1386 This option selects UART0 at 0xb0090000. This is appropriate for 1387 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7 1388 1389 config DEBUG_VF_UART 1390 bool "Vybrid UART" 1391 depends on SOC_VF610 1392 help 1393 Say Y here if you want kernel low-level debugging support 1394 on Vybrid based platforms. 1395 1396 config DEBUG_VT8500_UART0 1397 bool "Use UART0 on VIA/Wondermedia SoCs" 1398 depends on ARCH_VT8500 1399 help 1400 This option selects UART0 on VIA/Wondermedia System-on-a-chip 1401 devices, including VT8500, WM8505, WM8650 and WM8850. 1402 1403 config DEBUG_ZYNQ_UART0 1404 bool "Kernel low-level debugging on Xilinx Zynq using UART0" 1405 depends on ARCH_ZYNQ 1406 help 1407 Say Y here if you want the debug print routines to direct 1408 their output to UART0 on the Zynq platform. 1409 1410 config DEBUG_ZYNQ_UART1 1411 bool "Kernel low-level debugging on Xilinx Zynq using UART1" 1412 depends on ARCH_ZYNQ 1413 help 1414 Say Y here if you want the debug print routines to direct 1415 their output to UART1 on the Zynq platform. 1416 1417 If you have a ZC702 board and want early boot messages to 1418 appear on the USB serial adaptor, select this option. 1419 1420 config DEBUG_ICEDCC 1421 bool "Kernel low-level debugging via EmbeddedICE DCC channel" 1422 help 1423 Say Y here if you want the debug print routines to direct 1424 their output to the EmbeddedICE macrocell's DCC channel using 1425 co-processor 14. This is known to work on the ARM9 style ICE 1426 channel and on the XScale with the PEEDI. 1427 1428 Note that the system will appear to hang during boot if there 1429 is nothing connected to read from the DCC. 1430 1431 config DEBUG_SEMIHOSTING 1432 bool "Kernel low-level debug output via semihosting I/O" 1433 help 1434 Semihosting enables code running on an ARM target to use 1435 the I/O facilities on a host debugger/emulator through a 1436 simple SVC call. The host debugger or emulator must have 1437 semihosting enabled for the special svc call to be trapped 1438 otherwise the kernel will crash. 1439 1440 This is known to work with OpenOCD, as well as 1441 ARM's Fast Models, or any other controlling environment 1442 that implements semihosting. 1443 1444 For more details about semihosting, please see 1445 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. 1446 1447 config DEBUG_LL_UART_8250 1448 bool "Kernel low-level debugging via 8250 UART" 1449 help 1450 Say Y here if you wish the debug print routes to direct 1451 their output to an 8250 UART. You can use this option 1452 to provide the parameters for the 8250 UART rather than 1453 selecting one of the platform specific options above if 1454 you know the parameters for the port. 1455 1456 This option is preferred over the platform specific 1457 options; the platform specific options are deprecated 1458 and will be soon removed. 1459 1460 config DEBUG_LL_UART_PL01X 1461 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART" 1462 help 1463 Say Y here if you wish the debug print routes to direct 1464 their output to a PL01x Primecell UART. You can use 1465 this option to provide the parameters for the UART 1466 rather than selecting one of the platform specific 1467 options above if you know the parameters for the port. 1468 1469 This option is preferred over the platform specific 1470 options; the platform specific options are deprecated 1471 and will be soon removed. 1472 1473endchoice 1474 1475config DEBUG_AT91_UART 1476 bool 1477 depends on ARCH_AT91 1478 1479config DEBUG_EXYNOS_UART 1480 bool 1481 1482config DEBUG_S3C2410_UART 1483 bool 1484 select DEBUG_S3C24XX_UART 1485 1486config DEBUG_S3C24XX_UART 1487 bool 1488 1489config DEBUG_S3C64XX_UART 1490 bool 1491 1492config DEBUG_S5PV210_UART 1493 bool 1494 1495config DEBUG_S3C_UART 1496 depends on DEBUG_S3C2410_UART || DEBUG_S3C24XX_UART || \ 1497 DEBUG_S3C64XX_UART || DEBUG_S5PV210_UART || \ 1498 DEBUG_EXYNOS_UART 1499 int 1500 default "0" if DEBUG_S3C_UART0 1501 default "1" if DEBUG_S3C_UART1 1502 default "2" if DEBUG_S3C_UART2 1503 default "3" if DEBUG_S3C_UART3 1504 1505config DEBUG_OMAP2PLUS_UART 1506 bool 1507 depends on ARCH_OMAP2PLUS 1508 1509config DEBUG_IMX_UART_PORT 1510 int "i.MX Debug UART Port Selection" 1511 depends on DEBUG_IMX1_UART || \ 1512 DEBUG_IMX25_UART || \ 1513 DEBUG_IMX27_UART || \ 1514 DEBUG_IMX31_UART || \ 1515 DEBUG_IMX35_UART || \ 1516 DEBUG_IMX50_UART || \ 1517 DEBUG_IMX51_UART || \ 1518 DEBUG_IMX53_UART || \ 1519 DEBUG_IMX6Q_UART || \ 1520 DEBUG_IMX6SL_UART || \ 1521 DEBUG_IMX6SX_UART || \ 1522 DEBUG_IMX6UL_UART || \ 1523 DEBUG_IMX7D_UART 1524 default 1 1525 help 1526 Choose UART port on which kernel low-level debug messages 1527 should be output. 1528 1529config DEBUG_VF_UART_PORT 1530 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART 1531 default 1 1532 range 0 3 1533 depends on SOC_VF610 1534 help 1535 Choose UART port on which kernel low-level debug messages 1536 should be output. 1537 1538config DEBUG_TEGRA_UART 1539 bool 1540 depends on ARCH_TEGRA 1541 1542config DEBUG_STM32_UART 1543 bool 1544 depends on ARCH_STM32 1545 1546config DEBUG_UART_FLOW_CONTROL 1547 bool "Enable flow control (CTS) for the debug UART" 1548 depends on DEBUG_LL 1549 default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC 1550 help 1551 Some UART ports are connected to terminals that will use modem 1552 control signals to indicate whether they are ready to receive text. 1553 In practice this means that the terminal is asserting the special 1554 control signal CTS (Clear To Send). If your debug UART supports 1555 this and your debug terminal will require it, enable this option. 1556 1557config DEBUG_LL_INCLUDE 1558 string 1559 default "debug/sa1100.S" if DEBUG_SA1100 1560 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP 1561 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250 1562 default "debug/at91.S" if DEBUG_AT91_UART 1563 default "debug/asm9260.S" if DEBUG_ASM9260_UART 1564 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2 1565 default "debug/dc21285.S" if DEBUG_DC21285_PORT 1566 default "debug/meson.S" if DEBUG_MESON_UARTAO 1567 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X 1568 default "debug/exynos.S" if DEBUG_EXYNOS_UART 1569 default "debug/icedcc.S" if DEBUG_ICEDCC 1570 default "debug/imx.S" if DEBUG_IMX1_UART || \ 1571 DEBUG_IMX25_UART || \ 1572 DEBUG_IMX27_UART || \ 1573 DEBUG_IMX31_UART || \ 1574 DEBUG_IMX35_UART || \ 1575 DEBUG_IMX50_UART || \ 1576 DEBUG_IMX51_UART || \ 1577 DEBUG_IMX53_UART || \ 1578 DEBUG_IMX6Q_UART || \ 1579 DEBUG_IMX6SL_UART || \ 1580 DEBUG_IMX6SX_UART || \ 1581 DEBUG_IMX6UL_UART || \ 1582 DEBUG_IMX7D_UART 1583 default "debug/msm.S" if DEBUG_QCOM_UARTDM 1584 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART 1585 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2 1586 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2 1587 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4 1588 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0 1589 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2 1590 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0 1591 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1 1592 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2 1593 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4 1594 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2 1595 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0 1596 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1 1597 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4 1598 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART 1599 default "debug/s5pv210.S" if DEBUG_S5PV210_UART 1600 default "debug/sti.S" if DEBUG_STIH41X_ASC2 1601 default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1 1602 default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0 1603 default "debug/stm32.S" if DEBUG_STM32_UART 1604 default "debug/tegra.S" if DEBUG_TEGRA_UART 1605 default "debug/ux500.S" if DEBUG_UX500_UART 1606 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT 1607 default "debug/vf.S" if DEBUG_VF_UART 1608 default "debug/vt8500.S" if DEBUG_VT8500_UART0 1609 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 1610 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART 1611 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0 1612 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART 1613 default "mach/debug-macro.S" 1614 1615# Compatibility options for PL01x 1616config DEBUG_UART_PL01X 1617 bool 1618 1619# Compatibility options for 8250 1620config DEBUG_UART_8250 1621 def_bool ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC 1622 1623config DEBUG_UART_PHYS 1624 hex "Physical base address of debug UART" 1625 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0 1626 default 0x01c28000 if DEBUG_SUNXI_UART0 1627 default 0x01c28400 if DEBUG_SUNXI_UART1 1628 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1 1629 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2 1630 default 0x01f02800 if DEBUG_SUNXI_R_UART 1631 default 0x02530c00 if DEBUG_KEYSTONE_UART0 1632 default 0x02531000 if DEBUG_KEYSTONE_UART1 1633 default 0x03010fe0 if ARCH_RPC 1634 default 0x07000000 if DEBUG_SUN9I_UART0 1635 default 0x09530000 if DEBUG_STIH418_SBC_ASC0 1636 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ 1637 DEBUG_VEXPRESS_UART0_CA9 1638 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT 1639 default 0x10124000 if DEBUG_RK3X_UART0 1640 default 0x10126000 if DEBUG_RK3X_UART1 1641 default 0x101f1000 if DEBUG_VERSATILE 1642 default 0x101fb000 if DEBUG_NOMADIK_UART 1643 default 0x10210000 if DEBUG_RV1108_UART2 1644 default 0x10220000 if DEBUG_RV1108_UART1 1645 default 0x10230000 if DEBUG_RV1108_UART0 1646 default 0x11002000 if DEBUG_MT8127_UART0 1647 default 0x11006000 if DEBUG_MT6589_UART0 1648 default 0x11009000 if DEBUG_MT8135_UART3 1649 default 0x16000000 if DEBUG_INTEGRATOR 1650 default 0x1600d000 if DEBUG_SD5203_UART 1651 default 0x18000300 if DEBUG_BCM_5301X 1652 default 0x18000400 if DEBUG_BCM_HR2 1653 default 0x18023000 if DEBUG_BCM_IPROC_UART3 1654 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1 1655 default 0x1f221000 if DEBUG_MSTARV7_PMUART 1656 default 0x20001000 if DEBUG_HIP01_UART 1657 default 0x20060000 if DEBUG_RK29_UART0 1658 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1659 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1660 default 0x20201000 if DEBUG_BCM2835 1661 default 0x3e000000 if DEBUG_BCM_KONA_UART 1662 default 0x3f201000 if DEBUG_BCM2836 1663 default 0x40010000 if STM32MP1_DEBUG_UART 1664 default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \ 1665 STM32H7_DEBUG_UART 1666 default 0x40028000 if DEBUG_AT91_SAMV7_USART1 1667 default 0x40081000 if DEBUG_LPC18XX_UART0 1668 default 0x40090000 if DEBUG_LPC32XX 1669 default 0x40100000 if DEBUG_PXA_UART1 1670 default 0x42000000 if DEBUG_GEMINI 1671 default 0x44e09000 if DEBUG_AM33XXUART1 1672 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 1673 default 0x48022000 if DEBUG_TI81XXUART2 1674 default 0x48024000 if DEBUG_TI81XXUART3 1675 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \ 1676 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1 1677 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \ 1678 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2 1679 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4 1680 default 0x49020000 if DEBUG_OMAP3UART3 1681 default 0x49042000 if DEBUG_OMAP3UART4 1682 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1683 DEBUG_S3C2410_UART0) 1684 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1685 DEBUG_S3C2410_UART1) 1686 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1687 DEBUG_S3C2410_UART2) 1688 default 0x78000000 if DEBUG_CNS3XXX 1689 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1 1690 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 1691 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 1692 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 1693 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 1694 default 0x80010000 if DEBUG_ASM9260_UART 1695 default 0x80070000 if DEBUG_IMX23_UART 1696 default 0x80074000 if DEBUG_IMX28_UART 1697 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX 1698 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1699 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX 1700 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1701 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1702 default 0xd0000000 if DEBUG_SPEAR3XX 1703 default 0xd0012000 if DEBUG_MVEBU_UART0 1704 default 0xc81004c0 if DEBUG_MESON_UARTAO 1705 default 0xd4017000 if DEBUG_MMP_UART2 1706 default 0xd4018000 if DEBUG_MMP_UART3 1707 default 0xe0000000 if DEBUG_SPEAR13XX 1708 default 0xe0064200 if DEBUG_AT91_LAN966_FLEXCOM 1709 default 0xe1824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3 1710 default 0xe4007000 if DEBUG_HIP04_UART 1711 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0 1712 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1 1713 default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2 1714 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4 1715 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2 1716 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0 1717 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1 1718 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4 1719 default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2 1720 default 0xe8009000 if DEBUG_R7S9210_SCIF4 1721 default 0xf0000000 if DEBUG_DIGICOLOR_UA0 1722 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE 1723 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE 1724 default 0xf7fc9000 if DEBUG_BERLIN_UART 1725 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1 1726 default 0xf8b00000 if DEBUG_HIX5HD2_UART 1727 default 0xf991e000 if DEBUG_QCOM_UARTDM 1728 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3 1729 default 0xfcb00000 if DEBUG_HI3620_UART 1730 default 0xfd883000 if DEBUG_ALPINE_UART0 1731 default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1 1732 default 0xfe800000 if ARCH_IOP32X 1733 default 0xfed32000 if DEBUG_STIH41X_ASC2 1734 default 0xff690000 if DEBUG_RK32_UART2 1735 default 0xffc02000 if DEBUG_SOCFPGA_UART0 1736 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1 1737 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1 1738 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0 1739 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2 1740 default 0xfff36000 if DEBUG_HIGHBANK_UART 1741 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1742 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1743 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1744 default 0xfffe8600 if DEBUG_BCM63XX_UART 1745 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU 1746 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU 1747 depends on ARCH_EP93XX || \ 1748 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1749 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1750 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \ 1751 DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \ 1752 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \ 1753 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \ 1754 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \ 1755 DEBUG_RCAR_GEN2_SCIFA2 || \ 1756 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \ 1757 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \ 1758 DEBUG_S3C64XX_UART || \ 1759 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ 1760 DEBUG_DIGICOLOR_UA0 || \ 1761 DEBUG_AT91_UART || DEBUG_STM32_UART || \ 1762 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \ 1763 DEBUG_STIH418_SBC_ASC0 1764 1765config DEBUG_UART_VIRT 1766 hex "Virtual base address of debug UART" 1767 default 0xc881f000 if DEBUG_RV1108_UART2 1768 default 0xc8821000 if DEBUG_RV1108_UART1 1769 default 0xc8912000 if DEBUG_RV1108_UART0 1770 default 0xe0010fe0 if ARCH_RPC 1771 default 0xe0824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3 1772 default 0xf0010000 if DEBUG_ASM9260_UART 1773 default 0xf0100000 if DEBUG_DIGICOLOR_UA0 1774 default 0xf01fb000 if DEBUG_NOMADIK_UART 1775 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836 1776 default 0xf0221000 if DEBUG_MSTARV7_PMUART 1777 default 0xf1000300 if DEBUG_BCM_5301X 1778 default 0xf1000400 if DEBUG_BCM_HR2 1779 default 0xf1002000 if DEBUG_MT8127_UART0 1780 default 0xf1006000 if DEBUG_MT6589_UART0 1781 default 0xf1009000 if DEBUG_MT8135_UART3 1782 default 0xf1023000 if DEBUG_BCM_IPROC_UART3 1783 default 0xf11f1000 if DEBUG_VERSATILE 1784 default 0xf1600000 if DEBUG_INTEGRATOR 1785 default 0xf1c28000 if DEBUG_SUNXI_UART0 1786 default 0xf1c28400 if DEBUG_SUNXI_UART1 1787 default 0xf1f02800 if DEBUG_SUNXI_R_UART 1788 default 0xf31004c0 if DEBUG_MESON_UARTAO 1789 default 0xf4090000 if DEBUG_LPC32XX 1790 default 0xf4200000 if DEBUG_GEMINI 1791 default 0xf6200000 if DEBUG_PXA_UART1 1792 default 0xf7000000 if DEBUG_SUN9I_UART0 1793 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 1794 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1795 DEBUG_S3C2410_UART0) 1796 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 1797 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 1798 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 1799 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1800 DEBUG_S3C2410_UART1) 1801 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1802 DEBUG_S3C2410_UART2) 1803 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1 1804 default 0xf7fc9000 if DEBUG_BERLIN_UART 1805 default 0xf8007000 if DEBUG_HIP04_UART 1806 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 1807 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 1808 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU 1809 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU 1810 default 0xf9530000 if DEBUG_STIH418_SBC_ASC0 1811 default 0xf9e09000 if DEBUG_AM33XXUART1 1812 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 1813 default 0xfa022000 if DEBUG_TI81XXUART2 1814 default 0xfa024000 if DEBUG_TI81XXUART3 1815 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \ 1816 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1 1817 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \ 1818 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2 1819 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4 1820 default 0xfa71e000 if DEBUG_QCOM_UARTDM 1821 default 0xfb002000 if DEBUG_CNS3XXX 1822 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT 1823 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3 1824 default 0xfb020000 if DEBUG_OMAP3UART3 1825 default 0xfb042000 if DEBUG_OMAP3UART4 1826 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT 1827 default 0xfcfe8600 if DEBUG_BCM63XX_UART 1828 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX 1829 default 0xfd064200 if DEBUG_AT91_LAN966_FLEXCOM 1830 default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1 1831 default 0xfd883000 if DEBUG_ALPINE_UART0 1832 default 0xfdd32000 if DEBUG_STIH41X_ASC2 1833 default 0xfe010000 if STM32MP1_DEBUG_UART 1834 default 0xfe017000 if DEBUG_MMP_UART2 1835 default 0xfe018000 if DEBUG_MMP_UART3 1836 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART 1837 default 0xfe300000 if DEBUG_BCM_KONA_UART 1838 default 0xfe800000 if ARCH_IOP32X 1839 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART 1840 default 0xfeb24000 if DEBUG_RK3X_UART0 1841 default 0xfeb26000 if DEBUG_RK3X_UART1 1842 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0 1843 default 0xfeb31000 if DEBUG_KEYSTONE_UART1 1844 default 0xfec02000 if DEBUG_SOCFPGA_UART0 1845 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1 1846 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1 1847 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE 1848 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE 1849 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0 1850 default 0xfec90000 if DEBUG_RK32_UART2 1851 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1 1852 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART 1853 default 0xfed60000 if DEBUG_RK29_UART0 1854 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1855 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1856 default 0xfedc0000 if DEBUG_EP93XX 1857 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1 1858 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1859 default 0xfec00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1860 default 0xfec00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1861 default 0xfef36000 if DEBUG_HIGHBANK_UART 1862 default 0xff0b0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1863 default 0xff0b0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1864 default 0xff0b9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1865 default 0xffd01000 if DEBUG_HIP01_UART 1866 default DEBUG_UART_PHYS if !MMU 1867 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1868 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1869 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ 1870 DEBUG_S3C64XX_UART || \ 1871 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ 1872 DEBUG_DIGICOLOR_UA0 || \ 1873 DEBUG_AT91_UART || DEBUG_STM32_UART || \ 1874 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \ 1875 DEBUG_STIH418_SBC_ASC0 1876 1877config DEBUG_UART_8250_SHIFT 1878 int "Register offset shift for the 8250 debug UART" 1879 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1880 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \ 1881 DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \ 1882 DEBUG_OMAP7XXUART3 1883 default 3 if DEBUG_MSTARV7_PMUART 1884 default 2 1885 1886config DEBUG_UART_8250_WORD 1887 bool "Use 32-bit accesses for 8250 UART" 1888 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1889 depends on DEBUG_UART_8250_SHIFT >= 2 1890 default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \ 1891 DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \ 1892 DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \ 1893 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \ 1894 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \ 1895 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 1896 1897config DEBUG_UART_8250_PALMCHIP 1898 bool "8250 UART is Palmchip BK-310x" 1899 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1900 help 1901 Palmchip provides a UART implementation compatible with 16550 1902 except for having a different register layout. Say Y here if 1903 the debug UART is of this type. 1904 1905config DEBUG_UNCOMPRESS 1906 bool "Enable decompressor debugging via DEBUG_LL output" 1907 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1908 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ 1909 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \ 1910 !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING 1911 help 1912 This option influences the normal decompressor output for 1913 multiplatform kernels. Normally, multiplatform kernels disable 1914 decompressor output because it is not possible to know where to 1915 send the decompressor output. 1916 1917 When this option is set, the selected DEBUG_LL output method 1918 will be re-used for normal decompressor output on multiplatform 1919 kernels. 1920 1921 1922config UNCOMPRESS_INCLUDE 1923 string 1924 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ 1925 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1926 default "mach/uncompress.h" 1927 1928config EARLY_PRINTK 1929 bool "Early printk" 1930 depends on DEBUG_LL 1931 help 1932 Say Y here if you want to have an early console using the 1933 kernel low-level debugging functions. Add earlyprintk to your 1934 kernel parameters to enable this console. 1935 1936config ARM_KPROBES_TEST 1937 tristate "Kprobes test module" 1938 depends on KPROBES && MODULES 1939 help 1940 Perform tests of kprobes API and instruction set simulation. 1941 1942config PID_IN_CONTEXTIDR 1943 bool "Write the current PID to the CONTEXTIDR register" 1944 depends on CPU_COPY_V6 1945 help 1946 Enabling this option causes the kernel to write the current PID to 1947 the PROCID field of the CONTEXTIDR register, at the expense of some 1948 additional instructions during context switch. Say Y here only if you 1949 are planning to use hardware trace tools with this kernel. 1950 1951source "drivers/hwtracing/coresight/Kconfig"