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 FRAME_POINTER 83 bool 84 85config DEBUG_USER 86 bool "Verbose user fault messages" 87 help 88 When a user program crashes due to an exception, the kernel can 89 print a brief message explaining what the problem was. This is 90 sometimes helpful for debugging but serves no purpose on a 91 production system. Most people should say N here. 92 93 In addition, you need to pass user_debug=N on the kernel command 94 line to enable this feature. N consists of the sum of: 95 96 1 - undefined instruction events 97 2 - system calls 98 4 - invalid data aborts 99 8 - SIGSEGV faults 100 16 - SIGBUS faults 101 102# These options are only for real kernel hackers who want to get their hands dirty. 103config DEBUG_LL 104 bool "Kernel low-level debugging functions (read help!)" 105 depends on DEBUG_KERNEL 106 help 107 Say Y here to include definitions of printascii, printch, printhex 108 in the kernel. This is helpful if you are debugging code that 109 executes before the console is initialized. 110 111 Note that selecting this option will limit the kernel to a single 112 UART definition, as specified below. Attempting to boot the kernel 113 image on a different platform *will not work*, so this option should 114 not be enabled for kernels that are intended to be portable. 115 116choice 117 prompt "Kernel low-level debugging port" 118 depends on DEBUG_LL 119 120 config DEBUG_ALPINE_UART0 121 bool "Kernel low-level debugging messages via Alpine UART0" 122 depends on ARCH_ALPINE 123 select DEBUG_UART_8250 124 help 125 Say Y here if you want kernel low-level debugging support 126 on Alpine based platforms. 127 128 config DEBUG_ASM9260_UART 129 bool "Kernel low-level debugging via asm9260 UART" 130 depends on MACH_ASM9260 131 help 132 Say Y here if you want the debug print routines to direct 133 their output to an UART or USART port on asm9260 based 134 machines. 135 136 DEBUG_UART_PHYS | DEBUG_UART_VIRT 137 138 0x80000000 | 0xf0000000 | UART0 139 0x80004000 | 0xf0004000 | UART1 140 0x80008000 | 0xf0008000 | UART2 141 0x8000c000 | 0xf000c000 | UART3 142 0x80010000 | 0xf0010000 | UART4 143 0x80014000 | 0xf0014000 | UART5 144 0x80018000 | 0xf0018000 | UART6 145 0x8001c000 | 0xf001c000 | UART7 146 0x80020000 | 0xf0020000 | UART8 147 0x80024000 | 0xf0024000 | UART9 148 149 config DEBUG_AT91_RM9200_DBGU 150 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU" 151 select DEBUG_AT91_UART 152 depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60 153 help 154 Say Y here if you want kernel low-level debugging support 155 on the DBGU port of: 156 at91rm9200, at91sam9260, at91sam9g20, at91sam9261, 157 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60 158 159 config DEBUG_AT91_SAM9263_DBGU 160 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU" 161 select DEBUG_AT91_UART 162 depends on SOC_AT91SAM9 || SOC_SAMA5D3 163 help 164 Say Y here if you want kernel low-level debugging support 165 on the DBGU port of: 166 at91sam9263, at91sam9g45, at91sam9m10, 167 sama5d3 168 169 config DEBUG_AT91_SAMA5D2_UART1 170 bool "Kernel low-level debugging on SAMA5D2 UART1" 171 select DEBUG_AT91_UART 172 depends on SOC_SAMA5D2 173 help 174 Say Y here if you want kernel low-level debugging support 175 on the UART1 port of sama5d2. 176 177 config DEBUG_AT91_SAMA5D4_USART3 178 bool "Kernel low-level debugging on SAMA5D4 USART3" 179 select DEBUG_AT91_UART 180 depends on SOC_SAMA5D4 181 help 182 Say Y here if you want kernel low-level debugging support 183 on the USART3 port of sama5d4. 184 185 config DEBUG_AT91_SAMV7_USART1 186 bool "Kernel low-level debugging via SAMV7 USART1" 187 select DEBUG_AT91_UART 188 depends on SOC_SAMV7 189 help 190 Say Y here if you want the debug print routines to direct 191 their output to the USART1 port on SAMV7 based 192 machines. 193 194 config DEBUG_BCM2835 195 bool "Kernel low-level debugging on BCM2835 PL011 UART" 196 depends on ARCH_BCM2835 && ARCH_MULTI_V6 197 select DEBUG_UART_PL01X 198 199 config DEBUG_BCM2836 200 bool "Kernel low-level debugging on BCM2836 PL011 UART" 201 depends on ARCH_BCM2835 && ARCH_MULTI_V7 202 select DEBUG_UART_PL01X 203 204 config DEBUG_BCM_5301X 205 bool "Kernel low-level debugging on BCM5301X/NSP UART1" 206 depends on ARCH_BCM_5301X || ARCH_BCM_NSP 207 select DEBUG_UART_8250 208 209 config DEBUG_BCM_HR2 210 bool "Kernel low-level debugging on Hurricane 2 UART2" 211 depends on ARCH_BCM_HR2 212 select DEBUG_UART_8250 213 214 config DEBUG_BCM_IPROC_UART3 215 bool "Kernel low-level debugging on BCM IPROC UART3" 216 depends on ARCH_BCM_CYGNUS 217 select DEBUG_UART_8250 218 help 219 Say Y here if you want the debug print routines to direct 220 their output to the third serial port on these devices. 221 222 config DEBUG_BCM_KONA_UART 223 bool "Kernel low-level debugging messages via BCM KONA UART" 224 depends on ARCH_BCM_MOBILE 225 select DEBUG_UART_8250 226 help 227 Say Y here if you want kernel low-level debugging support 228 on Broadcom SoC platforms. 229 This low level debug works for Broadcom 230 mobile SoCs in the Kona family of chips (e.g. bcm28155, 231 bcm11351, etc...) 232 233 config DEBUG_BCM63XX_UART 234 bool "Kernel low-level debugging on BCM63XX UART" 235 depends on ARCH_BCM_63XX 236 237 config DEBUG_BERLIN_UART 238 bool "Marvell Berlin SoC Debug UART" 239 depends on ARCH_BERLIN 240 select DEBUG_UART_8250 241 help 242 Say Y here if you want kernel low-level debugging support 243 on Marvell Berlin SoC based platforms. 244 245 config DEBUG_BRCMSTB_UART 246 bool "Use BRCMSTB UART for low-level debug" 247 depends on ARCH_BRCMSTB 248 help 249 Say Y here if you want the debug print routines to direct 250 their output to the first serial port on these devices. The 251 UART physical and virtual address is automatically provided 252 based on the chip identification register value. 253 254 If you have a Broadcom STB chip and would like early print 255 messages to appear over the UART, select this option. 256 257 config DEBUG_CLPS711X_UART1 258 bool "Kernel low-level debugging messages via UART1" 259 depends on ARCH_CLPS711X 260 help 261 Say Y here if you want the debug print routines to direct 262 their output to the first serial port on these devices. 263 264 config DEBUG_CLPS711X_UART2 265 bool "Kernel low-level debugging messages via UART2" 266 depends on ARCH_CLPS711X 267 help 268 Say Y here if you want the debug print routines to direct 269 their output to the second serial port on these devices. 270 271 config DEBUG_CNS3XXX 272 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx" 273 depends on ARCH_CNS3XXX 274 select DEBUG_UART_8250 275 help 276 Say Y here if you want the debug print routines to direct 277 their output to the CNS3xxx UART0. 278 279 config DEBUG_DAVINCI_DA8XX_UART1 280 bool "Kernel low-level debugging on DaVinci DA8XX using UART1" 281 depends on ARCH_DAVINCI_DA8XX 282 select DEBUG_UART_8250 283 help 284 Say Y here if you want the debug print routines to direct 285 their output to UART1 serial port on DaVinci DA8XX devices. 286 287 config DEBUG_DAVINCI_DA8XX_UART2 288 bool "Kernel low-level debugging on DaVinci DA8XX using UART2" 289 depends on ARCH_DAVINCI_DA8XX 290 select DEBUG_UART_8250 291 help 292 Say Y here if you want the debug print routines to direct 293 their output to UART2 serial port on DaVinci DA8XX devices. 294 295 config DEBUG_DAVINCI_DMx_UART0 296 bool "Kernel low-level debugging on DaVinci DMx using UART0" 297 depends on ARCH_DAVINCI_DMx 298 select DEBUG_UART_8250 299 help 300 Say Y here if you want the debug print routines to direct 301 their output to UART0 serial port on DaVinci DMx devices. 302 303 config DEBUG_DC21285_PORT 304 bool "Kernel low-level debugging messages via footbridge serial port" 305 depends on FOOTBRIDGE 306 help 307 Say Y here if you want the debug print routines to direct 308 their output to the serial port in the DC21285 (Footbridge). 309 310 config DEBUG_DIGICOLOR_UA0 311 bool "Kernel low-level debugging messages via Digicolor UA0" 312 depends on ARCH_DIGICOLOR 313 help 314 Say Y here if you want the debug print routines to direct 315 their output to the UA0 serial port in the CX92755. 316 317 config DEBUG_EP93XX 318 bool "Kernel low-level debugging messages via ep93xx UART" 319 depends on ARCH_EP93XX 320 select DEBUG_UART_PL01X 321 help 322 Say Y here if you want kernel low-level debugging support 323 on Cirrus Logic EP93xx based platforms. 324 325 config DEBUG_FOOTBRIDGE_COM1 326 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" 327 depends on FOOTBRIDGE 328 select DEBUG_UART_8250 329 help 330 Say Y here if you want the debug print routines to direct 331 their output to the 8250 at PCI COM1. 332 333 config DEBUG_GEMINI 334 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART" 335 depends on ARCH_GEMINI 336 select DEBUG_UART_8250 337 help 338 Say Y here if you want kernel low-level debugging support 339 on Cortina Gemini based platforms. 340 341 config DEBUG_HI3620_UART 342 bool "Hisilicon HI3620 Debug UART" 343 depends on ARCH_HI3xxx 344 select DEBUG_UART_PL01X 345 help 346 Say Y here if you want kernel low-level debugging support 347 on HI3620 UART. 348 349 config DEBUG_HIGHBANK_UART 350 bool "Kernel low-level debugging messages via Highbank UART" 351 depends on ARCH_HIGHBANK 352 select DEBUG_UART_PL01X 353 help 354 Say Y here if you want the debug print routines to direct 355 their output to the UART on Highbank based devices. 356 357 config DEBUG_HIP01_UART 358 bool "Hisilicon Hip01 Debug UART" 359 depends on ARCH_HIP01 360 select DEBUG_UART_8250 361 help 362 Say Y here if you want kernel low-level debugging support 363 on HIP01 UART. 364 365 config DEBUG_HIP04_UART 366 bool "Hisilicon HiP04 Debug UART" 367 depends on ARCH_HIP04 368 select DEBUG_UART_8250 369 help 370 Say Y here if you want kernel low-level debugging support 371 on HIP04 UART. 372 373 config DEBUG_HIX5HD2_UART 374 bool "Hisilicon Hix5hd2 Debug UART" 375 depends on ARCH_HIX5HD2 376 select DEBUG_UART_PL01X 377 help 378 Say Y here if you want kernel low-level debugging support 379 on Hix5hd2 UART. 380 381 config DEBUG_IMX1_UART 382 bool "i.MX1 Debug UART" 383 depends on SOC_IMX1 384 help 385 Say Y here if you want kernel low-level debugging support 386 on i.MX1. 387 388 config DEBUG_IMX23_UART 389 bool "i.MX23 Debug UART" 390 depends on SOC_IMX23 391 select DEBUG_UART_PL01X 392 help 393 Say Y here if you want kernel low-level debugging support 394 on i.MX23. 395 396 config DEBUG_IMX25_UART 397 bool "i.MX25 Debug UART" 398 depends on SOC_IMX25 399 help 400 Say Y here if you want kernel low-level debugging support 401 on i.MX25. 402 403 config DEBUG_IMX21_IMX27_UART 404 bool "i.MX21 and i.MX27 Debug UART" 405 depends on SOC_IMX21 || SOC_IMX27 406 help 407 Say Y here if you want kernel low-level debugging support 408 on i.MX21 or i.MX27. 409 410 config DEBUG_IMX28_UART 411 bool "i.MX28 Debug UART" 412 depends on SOC_IMX28 413 select DEBUG_UART_PL01X 414 help 415 Say Y here if you want kernel low-level debugging support 416 on i.MX28. 417 418 config DEBUG_IMX31_UART 419 bool "i.MX31 Debug UART" 420 depends on SOC_IMX31 421 help 422 Say Y here if you want kernel low-level debugging support 423 on i.MX31. 424 425 config DEBUG_IMX35_UART 426 bool "i.MX35 Debug UART" 427 depends on SOC_IMX35 428 help 429 Say Y here if you want kernel low-level debugging support 430 on i.MX35. 431 432 config DEBUG_IMX50_UART 433 bool "i.MX50 Debug UART" 434 depends on SOC_IMX50 435 help 436 Say Y here if you want kernel low-level debugging support 437 on i.MX50. 438 439 config DEBUG_IMX51_UART 440 bool "i.MX51 Debug UART" 441 depends on SOC_IMX51 442 help 443 Say Y here if you want kernel low-level debugging support 444 on i.MX51. 445 446 config DEBUG_IMX53_UART 447 bool "i.MX53 Debug UART" 448 depends on SOC_IMX53 449 help 450 Say Y here if you want kernel low-level debugging support 451 on i.MX53. 452 453 config DEBUG_IMX6Q_UART 454 bool "i.MX6Q/DL Debug UART" 455 depends on SOC_IMX6Q 456 help 457 Say Y here if you want kernel low-level debugging support 458 on i.MX6Q/DL. 459 460 config DEBUG_IMX6SL_UART 461 bool "i.MX6SL Debug UART" 462 depends on SOC_IMX6SL 463 help 464 Say Y here if you want kernel low-level debugging support 465 on i.MX6SL. 466 467 config DEBUG_IMX6SX_UART 468 bool "i.MX6SX Debug UART" 469 depends on SOC_IMX6SX 470 help 471 Say Y here if you want kernel low-level debugging support 472 on i.MX6SX. 473 474 config DEBUG_IMX6UL_UART 475 bool "i.MX6UL Debug UART" 476 depends on SOC_IMX6UL 477 help 478 Say Y here if you want kernel low-level debugging support 479 on i.MX6UL. 480 481 config DEBUG_IMX7D_UART 482 bool "i.MX7D Debug UART" 483 depends on SOC_IMX7D 484 help 485 Say Y here if you want kernel low-level debugging support 486 on i.MX7D. 487 488 config DEBUG_INTEGRATOR 489 bool "Kernel low-level debugging messages via ARM Integrator UART" 490 depends on ARCH_INTEGRATOR 491 select DEBUG_UART_PL01X 492 help 493 Say Y here if you want kernel low-level debugging support 494 on ARM Integrator platforms. 495 496 config DEBUG_KEYSTONE_UART0 497 bool "Kernel low-level debugging on KEYSTONE2 using UART0" 498 depends on ARCH_KEYSTONE 499 select DEBUG_UART_8250 500 help 501 Say Y here if you want the debug print routines to direct 502 their output to UART0 serial port on KEYSTONE2 devices. 503 504 config DEBUG_KEYSTONE_UART1 505 bool "Kernel low-level debugging on KEYSTONE2 using UART1" 506 depends on ARCH_KEYSTONE 507 select DEBUG_UART_8250 508 help 509 Say Y here if you want the debug print routines to direct 510 their output to UART1 serial port on KEYSTONE2 devices. 511 512 config DEBUG_LPC18XX_UART0 513 bool "Kernel low-level debugging via LPC18xx/43xx UART0" 514 depends on ARCH_LPC18XX 515 select DEBUG_UART_8250 516 help 517 Say Y here if you want kernel low-level debugging support 518 on NXP LPC18xx/43xx UART0. 519 520 config DEBUG_LPC32XX 521 bool "Kernel low-level debugging messages via NXP LPC32xx UART" 522 depends on ARCH_LPC32XX 523 select DEBUG_UART_8250 524 help 525 Say Y here if you want kernel low-level debugging support 526 on NXP LPC32xx based platforms. 527 528 config DEBUG_MESON_UARTAO 529 bool "Kernel low-level debugging via Meson6 UARTAO" 530 depends on ARCH_MESON 531 help 532 Say Y here if you want kernel low-lever debugging support 533 on Amlogic Meson6 based platforms on the UARTAO. 534 535 config DEBUG_MMP_UART2 536 bool "Kernel low-level debugging message via MMP UART2" 537 depends on ARCH_MMP 538 select DEBUG_UART_8250 539 help 540 Say Y here if you want kernel low-level debugging support 541 on MMP UART2. 542 543 config DEBUG_MMP_UART3 544 bool "Kernel low-level debugging message via MMP UART3" 545 depends on ARCH_MMP 546 select DEBUG_UART_8250 547 help 548 Say Y here if you want kernel low-level debugging support 549 on MMP UART3. 550 551 config DEBUG_MVEBU_UART0 552 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)" 553 depends on ARCH_MVEBU 554 depends on ARCH_MVEBU && CPU_V7 555 select DEBUG_UART_8250 556 help 557 Say Y here if you want kernel low-level debugging support 558 on MVEBU based platforms on UART0. 559 560 This option should be used with the old bootloaders 561 that left the internal registers mapped at 562 0xd0000000. As of today, this is the case on 563 platforms such as the Globalscale Mirabox or the 564 Plathome OpenBlocks AX3, when using the original 565 bootloader. 566 567 This option will not work on older Marvell platforms 568 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick 569 the "new bootloader" variant. 570 571 If the wrong DEBUG_MVEBU_UART* option is selected, 572 when u-boot hands over to the kernel, the system 573 silently crashes, with no serial output at all. 574 575 config DEBUG_MVEBU_UART0_ALTERNATE 576 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)" 577 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X 578 select DEBUG_UART_8250 579 help 580 Say Y here if you want kernel low-level debugging support 581 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx, 582 Kirkwood, Dove, MV78xx0, Orion5x). 583 584 585 This option should be used with the new bootloaders 586 that remap the internal registers at 0xf1000000. 587 588 If the wrong DEBUG_MVEBU_UART* option is selected, 589 when u-boot hands over to the kernel, the system 590 silently crashes, with no serial output at all. 591 592 config DEBUG_MVEBU_UART1_ALTERNATE 593 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)" 594 depends on ARCH_MVEBU 595 select DEBUG_UART_8250 596 help 597 Say Y here if you want kernel low-level debugging support 598 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx, 599 Kirkwood, Dove, MV78xx0, Orion5x). 600 601 This option should be used with the new bootloaders 602 that remap the internal registers at 0xf1000000. 603 All of the older (pre Armada XP/370) platforms also use 604 this address, regardless of the boot loader version. 605 606 If the wrong DEBUG_MVEBU_UART* option is selected, 607 when u-boot hands over to the kernel, the system 608 silently crashes, with no serial output at all. 609 610 config DEBUG_MT6589_UART0 611 bool "Mediatek mt6589 UART0" 612 depends on ARCH_MEDIATEK 613 select DEBUG_UART_8250 614 help 615 Say Y here if you want kernel low-level debugging support 616 for Mediatek mt6589 based platforms on UART0. 617 618 config DEBUG_MT8127_UART0 619 bool "Mediatek mt8127/mt6592 UART0" 620 depends on ARCH_MEDIATEK 621 select DEBUG_UART_8250 622 help 623 Say Y here if you want kernel low-level debugging support 624 for Mediatek mt8127 based platforms on UART0. 625 626 config DEBUG_MT8135_UART3 627 bool "Mediatek mt8135 UART3" 628 depends on ARCH_MEDIATEK 629 select DEBUG_UART_8250 630 help 631 Say Y here if you want kernel low-level debugging support 632 for Mediatek mt8135 based platforms on UART3. 633 634 config DEBUG_NOMADIK_UART 635 bool "Kernel low-level debugging messages via NOMADIK UART" 636 depends on ARCH_NOMADIK 637 select DEBUG_UART_PL01X 638 help 639 Say Y here if you want kernel low-level debugging support 640 on NOMADIK based platforms. 641 642 config DEBUG_NSPIRE_CLASSIC_UART 643 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" 644 depends on ARCH_NSPIRE 645 select DEBUG_UART_8250 646 help 647 Say Y here if you want kernel low-level debugging support 648 on TI-NSPIRE classic models. 649 650 config DEBUG_NSPIRE_CX_UART 651 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" 652 depends on ARCH_NSPIRE 653 select DEBUG_UART_PL01X 654 help 655 Say Y here if you want kernel low-level debugging support 656 on TI-NSPIRE CX models. 657 658 config DEBUG_OMAP1UART1 659 bool "Kernel low-level debugging via OMAP1 UART1" 660 depends on ARCH_OMAP1 661 select DEBUG_UART_8250 662 help 663 Say Y here if you want kernel low-level debugging support 664 on OMAP1 based platforms (except OMAP730) on the UART1. 665 666 config DEBUG_OMAP1UART2 667 bool "Kernel low-level debugging via OMAP1 UART2" 668 depends on ARCH_OMAP1 669 select DEBUG_UART_8250 670 help 671 Say Y here if you want kernel low-level debugging support 672 on OMAP1 based platforms (except OMAP730) on the UART2. 673 674 config DEBUG_OMAP1UART3 675 bool "Kernel low-level debugging via OMAP1 UART3" 676 depends on ARCH_OMAP1 677 select DEBUG_UART_8250 678 help 679 Say Y here if you want kernel low-level debugging support 680 on OMAP1 based platforms (except OMAP730) on the UART3. 681 682 config DEBUG_OMAP2UART1 683 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" 684 depends on ARCH_OMAP2PLUS 685 select DEBUG_UART_8250 686 help 687 This covers at least h4, 2430sdp, 3430sdp, 3630sdp, 688 omap3 torpedo and 3530 lv som. 689 690 config DEBUG_OMAP2UART2 691 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2" 692 depends on ARCH_OMAP2PLUS 693 select DEBUG_UART_8250 694 695 config DEBUG_OMAP2UART3 696 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)" 697 depends on ARCH_OMAP2PLUS 698 select DEBUG_UART_8250 699 700 config DEBUG_OMAP3UART3 701 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)" 702 depends on ARCH_OMAP2PLUS 703 select DEBUG_UART_8250 704 help 705 This covers at least cm_t3x, beagle, crane, devkit8000, 706 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, 707 and 3517evm. 708 709 config DEBUG_OMAP4UART3 710 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" 711 depends on ARCH_OMAP2PLUS 712 select DEBUG_UART_8250 713 714 config DEBUG_OMAP3UART4 715 bool "Kernel low-level debugging messages via OMAP36XX UART4" 716 depends on ARCH_OMAP2PLUS 717 select DEBUG_UART_8250 718 719 config DEBUG_OMAP4UART4 720 bool "Kernel low-level debugging messages via OMAP4/5 UART4" 721 depends on ARCH_OMAP2PLUS 722 select DEBUG_UART_8250 723 724 config DEBUG_OMAP7XXUART1 725 bool "Kernel low-level debugging via OMAP730 UART1" 726 depends on ARCH_OMAP730 727 select DEBUG_UART_8250 728 help 729 Say Y here if you want kernel low-level debugging support 730 on OMAP730 based platforms on the UART1. 731 732 config DEBUG_OMAP7XXUART2 733 bool "Kernel low-level debugging via OMAP730 UART2" 734 depends on ARCH_OMAP730 735 select DEBUG_UART_8250 736 help 737 Say Y here if you want kernel low-level debugging support 738 on OMAP730 based platforms on the UART2. 739 740 config DEBUG_OMAP7XXUART3 741 bool "Kernel low-level debugging via OMAP730 UART3" 742 depends on ARCH_OMAP730 743 select DEBUG_UART_8250 744 help 745 Say Y here if you want kernel low-level debugging support 746 on OMAP730 based platforms on the UART3. 747 748 config DEBUG_TI81XXUART1 749 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)" 750 depends on ARCH_OMAP2PLUS 751 select DEBUG_UART_8250 752 753 config DEBUG_TI81XXUART2 754 bool "Kernel low-level debugging messages via TI81XX UART2" 755 depends on ARCH_OMAP2PLUS 756 select DEBUG_UART_8250 757 758 config DEBUG_TI81XXUART3 759 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)" 760 depends on ARCH_OMAP2PLUS 761 select DEBUG_UART_8250 762 763 config DEBUG_AM33XXUART1 764 bool "Kernel low-level debugging messages via AM33XX UART1" 765 depends on ARCH_OMAP2PLUS 766 select DEBUG_UART_8250 767 768 config DEBUG_ZOOM_UART 769 bool "Kernel low-level debugging messages via Zoom2/3 UART" 770 depends on ARCH_OMAP2PLUS 771 select DEBUG_OMAP2PLUS_UART 772 773 config DEBUG_PXA_UART1 774 depends on ARCH_PXA 775 bool "Use PXA UART1 for low-level debug" 776 select DEBUG_UART_8250 777 help 778 Say Y here if you want kernel low-level debugging support 779 on PXA UART1. 780 781 config DEBUG_QCOM_UARTDM 782 bool "Kernel low-level debugging messages via QCOM UARTDM" 783 depends on ARCH_QCOM 784 help 785 Say Y here if you want the debug print routines to direct 786 their output to the serial port on Qualcomm devices. 787 788 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT 789 APQ8064 0x16640000 0xf0040000 790 APQ8084 0xf995e000 0xfa75e000 791 IPQ4019 0x078af000 0xf78af000 792 MSM8X60 0x19c40000 0xf0040000 793 MSM8960 0x16440000 0xf0040000 794 MSM8974 0xf991e000 0xfa71e000 795 796 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration 797 options based on your needs. 798 799 config DEBUG_REALVIEW_STD_PORT 800 bool "RealView Default UART" 801 depends on ARCH_REALVIEW 802 select DEBUG_UART_PL01X 803 help 804 Say Y here if you want the debug print routines to direct 805 their output to the serial port on RealView EB, PB11MP, PBA8 806 and PBX platforms. 807 808 config DEBUG_REALVIEW_PB1176_PORT 809 bool "RealView PB1176 UART" 810 depends on MACH_REALVIEW_PB1176 811 select DEBUG_UART_PL01X 812 help 813 Say Y here if you want the debug print routines to direct 814 their output to the standard serial port on the RealView 815 PB1176 platform. 816 817 config DEBUG_RV1108_UART0 818 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0" 819 depends on ARCH_ROCKCHIP 820 select DEBUG_UART_8250 821 help 822 Say Y here if you want kernel low-level debugging support 823 on Rockchip RV1108 based platforms. 824 825 config DEBUG_RV1108_UART1 826 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1" 827 depends on ARCH_ROCKCHIP 828 select DEBUG_UART_8250 829 help 830 Say Y here if you want kernel low-level debugging support 831 on Rockchip RV1108 based platforms. 832 833 config DEBUG_RV1108_UART2 834 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2" 835 depends on ARCH_ROCKCHIP 836 select DEBUG_UART_8250 837 help 838 Say Y here if you want kernel low-level debugging support 839 on Rockchip RV1108 based platforms. 840 841 config DEBUG_RK29_UART0 842 bool "Kernel low-level debugging messages via Rockchip RK29 UART0" 843 depends on ARCH_ROCKCHIP 844 select DEBUG_UART_8250 845 help 846 Say Y here if you want kernel low-level debugging support 847 on Rockchip based platforms. 848 849 config DEBUG_RK29_UART1 850 bool "Kernel low-level debugging messages via Rockchip RK29 UART1" 851 depends on ARCH_ROCKCHIP 852 select DEBUG_UART_8250 853 help 854 Say Y here if you want kernel low-level debugging support 855 on Rockchip based platforms. 856 857 config DEBUG_RK29_UART2 858 bool "Kernel low-level debugging messages via Rockchip RK29 UART2" 859 depends on ARCH_ROCKCHIP 860 select DEBUG_UART_8250 861 help 862 Say Y here if you want kernel low-level debugging support 863 on Rockchip based platforms. 864 865 config DEBUG_RK3X_UART0 866 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0" 867 depends on ARCH_ROCKCHIP 868 select DEBUG_UART_8250 869 help 870 Say Y here if you want kernel low-level debugging support 871 on Rockchip based platforms. 872 873 config DEBUG_RK3X_UART1 874 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1" 875 depends on ARCH_ROCKCHIP 876 select DEBUG_UART_8250 877 help 878 Say Y here if you want kernel low-level debugging support 879 on Rockchip based platforms. 880 881 config DEBUG_RK3X_UART2 882 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2" 883 depends on ARCH_ROCKCHIP 884 select DEBUG_UART_8250 885 help 886 Say Y here if you want kernel low-level debugging support 887 on Rockchip based platforms. 888 889 config DEBUG_RK3X_UART3 890 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3" 891 depends on ARCH_ROCKCHIP 892 select DEBUG_UART_8250 893 help 894 Say Y here if you want kernel low-level debugging support 895 on Rockchip based platforms. 896 897 config DEBUG_RK32_UART2 898 bool "Kernel low-level debugging messages via Rockchip RK32 UART2" 899 depends on ARCH_ROCKCHIP 900 select DEBUG_UART_8250 901 help 902 Say Y here if you want kernel low-level debugging support 903 on Rockchip RK32xx based platforms. 904 905 config DEBUG_R7S72100_SCIF2 906 bool "Kernel low-level debugging messages via SCIF2 on R7S72100" 907 depends on ARCH_R7S72100 908 help 909 Say Y here if you want kernel low-level debugging support 910 via SCIF2 on Renesas RZ/A1H (R7S72100). 911 912 config DEBUG_R7S9210_SCIF2 913 bool "Kernel low-level debugging messages via SCIF2 on R7S9210" 914 depends on ARCH_R7S9210 915 help 916 Say Y here if you want kernel low-level debugging support 917 via SCIF2 on Renesas RZ/A2M (R7S9210). 918 919 config DEBUG_R7S9210_SCIF4 920 bool "Kernel low-level debugging messages via SCIF4 on R7S9210" 921 depends on ARCH_R7S9210 922 help 923 Say Y here if you want kernel low-level debugging support 924 via SCIF4 on Renesas RZ/A2M (R7S9210). 925 926 config DEBUG_RCAR_GEN1_SCIF0 927 bool "Kernel low-level debugging messages via SCIF0 on R8A7778" 928 depends on ARCH_R8A7778 929 help 930 Say Y here if you want kernel low-level debugging support 931 via SCIF0 on Renesas R-Car M1A (R8A7778). 932 933 config DEBUG_RCAR_GEN1_SCIF2 934 bool "Kernel low-level debugging messages via SCIF2 on R8A7779" 935 depends on ARCH_R8A7779 936 help 937 Say Y here if you want kernel low-level debugging support 938 via SCIF2 on Renesas R-Car H1 (R8A7779). 939 940 config DEBUG_RCAR_GEN2_SCIF0 941 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1" 942 depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \ 943 ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793 944 help 945 Say Y here if you want kernel low-level debugging support 946 via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744), 947 R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or 948 M2-N (R8A7793). 949 950 config DEBUG_RCAR_GEN2_SCIF1 951 bool "Kernel low-level debugging messages via SCIF1 on R8A77470" 952 depends on ARCH_R8A77470 953 help 954 Say Y here if you want kernel low-level debugging support 955 via SCIF1 on Renesas RZ/G1C (R8A77470). 956 957 config DEBUG_RCAR_GEN2_SCIF2 958 bool "Kernel low-level debugging messages via SCIF2 on R8A7794" 959 depends on ARCH_R8A7794 960 help 961 Say Y here if you want kernel low-level debugging support 962 via SCIF2 on Renesas R-Car E2 (R8A7794). 963 964 config DEBUG_RCAR_GEN2_SCIF4 965 bool "Kernel low-level debugging messages via SCIF4 on R8A7745" 966 depends on ARCH_R8A7745 967 help 968 Say Y here if you want kernel low-level debugging support 969 via SCIF4 on Renesas RZ/G1E (R8A7745). 970 971 config DEBUG_RCAR_GEN2_SCIFA2 972 bool "Kernel low-level debugging messages via SCIFA2 on R8A7742" 973 depends on ARCH_R8A7742 974 help 975 Say Y here if you want kernel low-level debugging support 976 via SCIFA2 on Renesas RZ/G1H (R8A7742). 977 978 config DEBUG_RMOBILE_SCIFA0 979 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4" 980 depends on ARCH_R8A73A4 981 help 982 Say Y here if you want kernel low-level debugging support 983 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4). 984 985 config DEBUG_RMOBILE_SCIFA1 986 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740" 987 depends on ARCH_R8A7740 988 help 989 Say Y here if you want kernel low-level debugging support 990 via SCIFA1 on Renesas R-Mobile A1 (R8A7740). 991 992 config DEBUG_RMOBILE_SCIFA4 993 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0" 994 depends on ARCH_SH73A0 995 help 996 Say Y here if you want kernel low-level debugging support 997 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0). 998 999 config DEBUG_S3C_UART0 1000 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS 1001 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1002 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 1003 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1004 select DEBUG_S5PV210_UART if ARCH_S5PV210 1005 bool "Use Samsung S3C UART 0 for low-level debug" 1006 help 1007 Say Y here if you want the debug print routines to direct 1008 their output to UART 0. The port must have been initialised 1009 by the boot-loader before use. 1010 1011 config DEBUG_S3C_UART1 1012 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS 1013 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1014 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 1015 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1016 select DEBUG_S5PV210_UART if ARCH_S5PV210 1017 bool "Use Samsung S3C UART 1 for low-level debug" 1018 help 1019 Say Y here if you want the debug print routines to direct 1020 their output to UART 1. The port must have been initialised 1021 by the boot-loader before use. 1022 1023 config DEBUG_S3C_UART2 1024 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS 1025 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1026 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 1027 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1028 select DEBUG_S5PV210_UART if ARCH_S5PV210 1029 bool "Use Samsung S3C UART 2 for low-level debug" 1030 help 1031 Say Y here if you want the debug print routines to direct 1032 their output to UART 2. The port must have been initialised 1033 by the boot-loader before use. 1034 1035 config DEBUG_S3C_UART3 1036 depends on ARCH_EXYNOS || ARCH_S5PV210 1037 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 1038 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 1039 select DEBUG_S5PV210_UART if ARCH_S5PV210 1040 bool "Use Samsung S3C UART 3 for low-level debug" 1041 help 1042 Say Y here if you want the debug print routines to direct 1043 their output to UART 3. The port must have been initialised 1044 by the boot-loader before use. 1045 1046 config DEBUG_S3C2410_UART0 1047 depends on ARCH_S3C24XX 1048 select DEBUG_S3C2410_UART 1049 bool "Use S3C2410/S3C2412 UART 0 for low-level debug" 1050 help 1051 Say Y here if you want the debug print routines to direct 1052 their output to UART 0. The port must have been initialised 1053 by the boot-loader before use. 1054 1055 config DEBUG_S3C2410_UART1 1056 depends on ARCH_S3C24XX 1057 select DEBUG_S3C2410_UART 1058 bool "Use S3C2410/S3C2412 UART 1 for low-level debug" 1059 help 1060 Say Y here if you want the debug print routines to direct 1061 their output to UART 1. The port must have been initialised 1062 by the boot-loader before use. 1063 1064 config DEBUG_S3C2410_UART2 1065 depends on ARCH_S3C24XX 1066 select DEBUG_S3C2410_UART 1067 bool "Use S3C2410/S3C2412 UART 2 for low-level debug" 1068 help 1069 Say Y here if you want the debug print routines to direct 1070 their output to UART 2. The port must have been initialised 1071 by the boot-loader before use. 1072 1073 config DEBUG_SA1100 1074 depends on ARCH_SA1100 1075 bool "Use SA1100 UARTs for low-level debug" 1076 help 1077 Say Y here if you want kernel low-level debugging support 1078 on SA-11x0 UART ports. The kernel will check for the first 1079 enabled UART in a sequence 3-1-2. 1080 1081 config DEBUG_SD5203_UART 1082 bool "Hisilicon SD5203 Debug UART" 1083 depends on ARCH_SD5203 1084 select DEBUG_UART_8250 1085 help 1086 Say Y here if you want kernel low-level debugging support 1087 on SD5203 UART. 1088 1089 config DEBUG_SOCFPGA_UART0 1090 depends on ARCH_INTEL_SOCFPGA 1091 bool "Use SOCFPGA UART0 for low-level debug" 1092 select DEBUG_UART_8250 1093 help 1094 Say Y here if you want kernel low-level debugging support 1095 on SOCFPGA(Cyclone 5 and Arria 5) based platforms. 1096 1097 config DEBUG_SOCFPGA_ARRIA10_UART1 1098 depends on ARCH_INTEL_SOCFPGA 1099 bool "Use SOCFPGA Arria10 UART1 for low-level debug" 1100 select DEBUG_UART_8250 1101 help 1102 Say Y here if you want kernel low-level debugging support 1103 on SOCFPGA(Arria 10) based platforms. 1104 1105 config DEBUG_SOCFPGA_CYCLONE5_UART1 1106 depends on ARCH_INTEL_SOCFPGA 1107 bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug" 1108 select DEBUG_UART_8250 1109 help 1110 Say Y here if you want kernel low-level debugging support 1111 on SOCFPGA(Cyclone 5 and Arria 5) based platforms. 1112 1113 config DEBUG_SUN9I_UART0 1114 bool "Kernel low-level debugging messages via sun9i UART0" 1115 depends on MACH_SUN9I 1116 select DEBUG_UART_8250 1117 help 1118 Say Y here if you want kernel low-level debugging support 1119 on Allwinner A80 based platforms on the UART0. 1120 1121 config DEBUG_SUNXI_UART0 1122 bool "Kernel low-level debugging messages via sunXi UART0" 1123 depends on ARCH_SUNXI 1124 select DEBUG_UART_8250 1125 help 1126 Say Y here if you want kernel low-level debugging support 1127 on Allwinner A1X based platforms on the UART0. 1128 1129 config DEBUG_SUNXI_UART1 1130 bool "Kernel low-level debugging messages via sunXi UART1" 1131 depends on ARCH_SUNXI 1132 select DEBUG_UART_8250 1133 help 1134 Say Y here if you want kernel low-level debugging support 1135 on Allwinner A1X based platforms on the UART1. 1136 1137 config DEBUG_SUNXI_R_UART 1138 bool "Kernel low-level debugging messages via sunXi R_UART" 1139 depends on MACH_SUN6I || MACH_SUN8I 1140 select DEBUG_UART_8250 1141 help 1142 Say Y here if you want kernel low-level debugging support 1143 on Allwinner A31/A23 based platforms on the R_UART. 1144 1145 config DEBUG_SPEAR3XX 1146 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART" 1147 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX 1148 select DEBUG_UART_PL01X 1149 help 1150 Say Y here if you want kernel low-level debugging support 1151 on ST SPEAr based platforms. 1152 1153 config DEBUG_SPEAR13XX 1154 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART" 1155 depends on ARCH_SPEAR13XX 1156 select DEBUG_UART_PL01X 1157 help 1158 Say Y here if you want kernel low-level debugging support 1159 on ST SPEAr13xx based platforms. 1160 1161 config DEBUG_STIH41X_ASC2 1162 bool "Use StiH415/416 ASC2 UART for low-level debug" 1163 depends on ARCH_STI 1164 help 1165 Say Y here if you want kernel low-level debugging support 1166 on STiH415/416 based platforms like b2000, which has 1167 default UART wired up to ASC2. 1168 1169 If unsure, say N. 1170 1171 config DEBUG_STIH41X_SBC_ASC1 1172 bool "Use StiH415/416 SBC ASC1 UART for low-level debug" 1173 depends on ARCH_STI 1174 help 1175 Say Y here if you want kernel low-level debugging support 1176 on STiH415/416 based platforms like b2020. which has 1177 default UART wired up to SBC ASC1. 1178 1179 If unsure, say N. 1180 1181 config DEBUG_STIH418_SBC_ASC0 1182 bool "Use StiH418 SBC ASC0 UART for low-level debug" 1183 depends on ARCH_STI 1184 help 1185 Say Y here if you want kernel low-level debugging support 1186 on STiH418 based platforms which has default UART wired 1187 up to SBC ASC0. 1188 1189 If unsure, say N. 1190 1191 config STM32F4_DEBUG_UART 1192 bool "Use STM32F4 UART for low-level debug" 1193 depends on MACH_STM32F429 || MACH_STM32F469 1194 select DEBUG_STM32_UART 1195 help 1196 Say Y here if you want kernel low-level debugging support 1197 on STM32F4 based platforms, which default UART is wired on 1198 USART1, but another UART instance can be selected by modifying 1199 CONFIG_DEBUG_UART_PHYS. 1200 1201 If unsure, say N. 1202 1203 config STM32F7_DEBUG_UART 1204 bool "Use STM32F7 UART for low-level debug" 1205 depends on MACH_STM32F746 || MACH_STM32F769 1206 select DEBUG_STM32_UART 1207 help 1208 Say Y here if you want kernel low-level debugging support 1209 on STM32F7 based platforms, which default UART is wired on 1210 USART1, but another UART instance can be selected by modifying 1211 CONFIG_DEBUG_UART_PHYS. 1212 1213 If unsure, say N. 1214 1215 config STM32H7_DEBUG_UART 1216 bool "Use STM32H7 UART for low-level debug" 1217 depends on MACH_STM32H743 1218 select DEBUG_STM32_UART 1219 help 1220 Say Y here if you want kernel low-level debugging support 1221 on STM32H7 based platforms, which default UART is wired on 1222 USART1, but another UART instance can be selected by modifying 1223 CONFIG_DEBUG_UART_PHYS. 1224 1225 If unsure, say N. 1226 1227 config STM32MP1_DEBUG_UART 1228 bool "Use STM32MP1 UART for low-level debug" 1229 depends on MACH_STM32MP157 1230 select DEBUG_STM32_UART 1231 help 1232 Say Y here if you want kernel low-level debugging support 1233 on STM32MP1 based platforms, wich default UART is wired on 1234 UART4, but another UART instance can be selected by modifying 1235 CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT. 1236 1237 If unsure, say N. 1238 1239 config TEGRA_DEBUG_UART_AUTO_ODMDATA 1240 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" 1241 depends on ARCH_TEGRA 1242 select DEBUG_TEGRA_UART 1243 help 1244 Automatically determines which UART to use for low-level 1245 debug based on the ODMDATA value. This value is part of 1246 the BCT, and is written to the boot memory device using 1247 nvflash, or other flashing tool. When bits 19:18 are 3, 1248 then bits 17:15 indicate which UART to use; 0/1/2/3/4 1249 are UART A/B/C/D/E. 1250 1251 config TEGRA_DEBUG_UARTA 1252 bool "Kernel low-level debugging messages via Tegra UART A" 1253 depends on ARCH_TEGRA 1254 select DEBUG_TEGRA_UART 1255 help 1256 Say Y here if you want kernel low-level debugging support 1257 on Tegra based platforms. 1258 1259 config TEGRA_DEBUG_UARTB 1260 bool "Kernel low-level debugging messages via Tegra UART B" 1261 depends on ARCH_TEGRA 1262 select DEBUG_TEGRA_UART 1263 help 1264 Say Y here if you want kernel low-level debugging support 1265 on Tegra based platforms. 1266 1267 config TEGRA_DEBUG_UARTC 1268 bool "Kernel low-level debugging messages via Tegra UART C" 1269 depends on ARCH_TEGRA 1270 select DEBUG_TEGRA_UART 1271 help 1272 Say Y here if you want kernel low-level debugging support 1273 on Tegra based platforms. 1274 1275 config TEGRA_DEBUG_UARTD 1276 bool "Kernel low-level debugging messages via Tegra UART D" 1277 depends on ARCH_TEGRA 1278 select DEBUG_TEGRA_UART 1279 help 1280 Say Y here if you want kernel low-level debugging support 1281 on Tegra based platforms. 1282 1283 config TEGRA_DEBUG_UARTE 1284 bool "Kernel low-level debugging messages via Tegra UART E" 1285 depends on ARCH_TEGRA 1286 select DEBUG_TEGRA_UART 1287 help 1288 Say Y here if you want kernel low-level debugging support 1289 on Tegra based platforms. 1290 1291 config DEBUG_UX500_UART 1292 depends on ARCH_U8500 1293 bool "Use Ux500 UART for low-level debug" 1294 help 1295 Say Y here if you want kernel low-level debugging support 1296 on Ux500 based platforms. 1297 1298 config DEBUG_VERSATILE 1299 bool "Kernel low-level debugging messages via ARM Versatile UART" 1300 depends on ARCH_VERSATILE 1301 select DEBUG_UART_PL01X 1302 help 1303 Say Y here if you want kernel low-level debugging support 1304 on ARM Versatile platforms. 1305 1306 config DEBUG_VEXPRESS_UART0_DETECT 1307 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" 1308 depends on ARCH_VEXPRESS && CPU_CP15_MMU 1309 help 1310 This option enables a simple heuristic which tries to determine 1311 the motherboard's memory map variant (original or RS1) and then 1312 choose the relevant UART0 base address. 1313 1314 Note that this will only work with standard A-class core tiles, 1315 and may fail with non-standard SMM or custom software models. 1316 1317 config DEBUG_VEXPRESS_UART0_CA9 1318 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" 1319 depends on ARCH_VEXPRESS 1320 select DEBUG_UART_PL01X 1321 help 1322 This option selects UART0 at 0x10009000. Except for custom models, 1323 this applies only to the V2P-CA9 tile. 1324 1325 config DEBUG_VEXPRESS_UART0_RS1 1326 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" 1327 depends on ARCH_VEXPRESS 1328 select DEBUG_UART_PL01X 1329 help 1330 This option selects UART0 at 0x1c090000. This applies to most 1331 of the tiles using the RS1 memory map, including all new A-class 1332 core tiles, FPGA-based SMMs and software models. 1333 1334 config DEBUG_VEXPRESS_UART0_CRX 1335 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" 1336 depends on ARCH_VEXPRESS && !MMU 1337 select DEBUG_UART_PL01X 1338 help 1339 This option selects UART0 at 0xb0090000. This is appropriate for 1340 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7 1341 1342 config DEBUG_VF_UART 1343 bool "Vybrid UART" 1344 depends on SOC_VF610 1345 help 1346 Say Y here if you want kernel low-level debugging support 1347 on Vybrid based platforms. 1348 1349 config DEBUG_VT8500_UART0 1350 bool "Use UART0 on VIA/Wondermedia SoCs" 1351 depends on ARCH_VT8500 1352 help 1353 This option selects UART0 on VIA/Wondermedia System-on-a-chip 1354 devices, including VT8500, WM8505, WM8650 and WM8850. 1355 1356 config DEBUG_ZYNQ_UART0 1357 bool "Kernel low-level debugging on Xilinx Zynq using UART0" 1358 depends on ARCH_ZYNQ 1359 help 1360 Say Y here if you want the debug print routines to direct 1361 their output to UART0 on the Zynq platform. 1362 1363 config DEBUG_ZYNQ_UART1 1364 bool "Kernel low-level debugging on Xilinx Zynq using UART1" 1365 depends on ARCH_ZYNQ 1366 help 1367 Say Y here if you want the debug print routines to direct 1368 their output to UART1 on the Zynq platform. 1369 1370 If you have a ZC702 board and want early boot messages to 1371 appear on the USB serial adaptor, select this option. 1372 1373 config DEBUG_ICEDCC 1374 bool "Kernel low-level debugging via EmbeddedICE DCC channel" 1375 help 1376 Say Y here if you want the debug print routines to direct 1377 their output to the EmbeddedICE macrocell's DCC channel using 1378 co-processor 14. This is known to work on the ARM9 style ICE 1379 channel and on the XScale with the PEEDI. 1380 1381 Note that the system will appear to hang during boot if there 1382 is nothing connected to read from the DCC. 1383 1384 config DEBUG_SEMIHOSTING 1385 bool "Kernel low-level debug output via semihosting I/O" 1386 help 1387 Semihosting enables code running on an ARM target to use 1388 the I/O facilities on a host debugger/emulator through a 1389 simple SVC call. The host debugger or emulator must have 1390 semihosting enabled for the special svc call to be trapped 1391 otherwise the kernel will crash. 1392 1393 This is known to work with OpenOCD, as well as 1394 ARM's Fast Models, or any other controlling environment 1395 that implements semihosting. 1396 1397 For more details about semihosting, please see 1398 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. 1399 1400 config DEBUG_LL_UART_8250 1401 bool "Kernel low-level debugging via 8250 UART" 1402 help 1403 Say Y here if you wish the debug print routes to direct 1404 their output to an 8250 UART. You can use this option 1405 to provide the parameters for the 8250 UART rather than 1406 selecting one of the platform specific options above if 1407 you know the parameters for the port. 1408 1409 This option is preferred over the platform specific 1410 options; the platform specific options are deprecated 1411 and will be soon removed. 1412 1413 config DEBUG_LL_UART_PL01X 1414 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART" 1415 help 1416 Say Y here if you wish the debug print routes to direct 1417 their output to a PL01x Primecell UART. You can use 1418 this option to provide the parameters for the UART 1419 rather than selecting one of the platform specific 1420 options above if you know the parameters for the port. 1421 1422 This option is preferred over the platform specific 1423 options; the platform specific options are deprecated 1424 and will be soon removed. 1425 1426endchoice 1427 1428config DEBUG_AT91_UART 1429 bool 1430 depends on ARCH_AT91 1431 1432config DEBUG_EXYNOS_UART 1433 bool 1434 1435config DEBUG_S3C2410_UART 1436 bool 1437 select DEBUG_S3C24XX_UART 1438 1439config DEBUG_S3C24XX_UART 1440 bool 1441 1442config DEBUG_S3C64XX_UART 1443 bool 1444 1445config DEBUG_S5PV210_UART 1446 bool 1447 1448config DEBUG_S3C_UART 1449 depends on DEBUG_S3C2410_UART || DEBUG_S3C24XX_UART || \ 1450 DEBUG_S3C64XX_UART || DEBUG_S5PV210_UART || \ 1451 DEBUG_EXYNOS_UART 1452 int 1453 default "0" if DEBUG_S3C_UART0 1454 default "1" if DEBUG_S3C_UART1 1455 default "2" if DEBUG_S3C_UART2 1456 default "3" if DEBUG_S3C_UART3 1457 1458config DEBUG_OMAP2PLUS_UART 1459 bool 1460 depends on ARCH_OMAP2PLUS 1461 1462config DEBUG_IMX_UART_PORT 1463 int "i.MX Debug UART Port Selection" 1464 depends on DEBUG_IMX1_UART || \ 1465 DEBUG_IMX25_UART || \ 1466 DEBUG_IMX21_IMX27_UART || \ 1467 DEBUG_IMX31_UART || \ 1468 DEBUG_IMX35_UART || \ 1469 DEBUG_IMX50_UART || \ 1470 DEBUG_IMX51_UART || \ 1471 DEBUG_IMX53_UART || \ 1472 DEBUG_IMX6Q_UART || \ 1473 DEBUG_IMX6SL_UART || \ 1474 DEBUG_IMX6SX_UART || \ 1475 DEBUG_IMX6UL_UART || \ 1476 DEBUG_IMX7D_UART 1477 default 1 1478 help 1479 Choose UART port on which kernel low-level debug messages 1480 should be output. 1481 1482config DEBUG_VF_UART_PORT 1483 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART 1484 default 1 1485 range 0 3 1486 depends on SOC_VF610 1487 help 1488 Choose UART port on which kernel low-level debug messages 1489 should be output. 1490 1491config DEBUG_TEGRA_UART 1492 bool 1493 depends on ARCH_TEGRA 1494 1495config DEBUG_STM32_UART 1496 bool 1497 depends on ARCH_STM32 1498 1499config DEBUG_UART_FLOW_CONTROL 1500 bool "Enable flow control (CTS) for the debug UART" 1501 depends on DEBUG_LL 1502 default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC 1503 help 1504 Some UART ports are connected to terminals that will use modem 1505 control signals to indicate whether they are ready to receive text. 1506 In practice this means that the terminal is asserting the special 1507 control signal CTS (Clear To Send). If your debug UART supports 1508 this and your debug terminal will require it, enable this option. 1509 1510config DEBUG_LL_INCLUDE 1511 string 1512 default "debug/sa1100.S" if DEBUG_SA1100 1513 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP 1514 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250 1515 default "debug/at91.S" if DEBUG_AT91_UART 1516 default "debug/asm9260.S" if DEBUG_ASM9260_UART 1517 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2 1518 default "debug/dc21285.S" if DEBUG_DC21285_PORT 1519 default "debug/meson.S" if DEBUG_MESON_UARTAO 1520 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X 1521 default "debug/exynos.S" if DEBUG_EXYNOS_UART 1522 default "debug/icedcc.S" if DEBUG_ICEDCC 1523 default "debug/imx.S" if DEBUG_IMX1_UART || \ 1524 DEBUG_IMX25_UART || \ 1525 DEBUG_IMX21_IMX27_UART || \ 1526 DEBUG_IMX31_UART || \ 1527 DEBUG_IMX35_UART || \ 1528 DEBUG_IMX50_UART || \ 1529 DEBUG_IMX51_UART || \ 1530 DEBUG_IMX53_UART ||\ 1531 DEBUG_IMX6Q_UART || \ 1532 DEBUG_IMX6SL_UART || \ 1533 DEBUG_IMX6SX_UART || \ 1534 DEBUG_IMX6UL_UART || \ 1535 DEBUG_IMX7D_UART 1536 default "debug/msm.S" if DEBUG_QCOM_UARTDM 1537 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART 1538 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2 1539 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2 1540 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4 1541 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0 1542 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2 1543 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0 1544 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1 1545 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2 1546 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4 1547 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2 1548 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0 1549 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1 1550 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4 1551 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART 1552 default "debug/s5pv210.S" if DEBUG_S5PV210_UART 1553 default "debug/sti.S" if DEBUG_STIH41X_ASC2 1554 default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1 1555 default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0 1556 default "debug/stm32.S" if DEBUG_STM32_UART 1557 default "debug/tegra.S" if DEBUG_TEGRA_UART 1558 default "debug/ux500.S" if DEBUG_UX500_UART 1559 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT 1560 default "debug/vf.S" if DEBUG_VF_UART 1561 default "debug/vt8500.S" if DEBUG_VT8500_UART0 1562 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 1563 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART 1564 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0 1565 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART 1566 default "mach/debug-macro.S" 1567 1568# Compatibility options for PL01x 1569config DEBUG_UART_PL01X 1570 bool 1571 1572# Compatibility options for 8250 1573config DEBUG_UART_8250 1574 def_bool ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC 1575 1576config DEBUG_UART_PHYS 1577 hex "Physical base address of debug UART" 1578 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0 1579 default 0x01c28000 if DEBUG_SUNXI_UART0 1580 default 0x01c28400 if DEBUG_SUNXI_UART1 1581 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1 1582 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2 1583 default 0x01f02800 if DEBUG_SUNXI_R_UART 1584 default 0x02530c00 if DEBUG_KEYSTONE_UART0 1585 default 0x02531000 if DEBUG_KEYSTONE_UART1 1586 default 0x03010fe0 if ARCH_RPC 1587 default 0x07000000 if DEBUG_SUN9I_UART0 1588 default 0x09530000 if DEBUG_STIH418_SBC_ASC0 1589 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ 1590 DEBUG_VEXPRESS_UART0_CA9 1591 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT 1592 default 0x10124000 if DEBUG_RK3X_UART0 1593 default 0x10126000 if DEBUG_RK3X_UART1 1594 default 0x101f1000 if DEBUG_VERSATILE 1595 default 0x101fb000 if DEBUG_NOMADIK_UART 1596 default 0x10210000 if DEBUG_RV1108_UART2 1597 default 0x10220000 if DEBUG_RV1108_UART1 1598 default 0x10230000 if DEBUG_RV1108_UART0 1599 default 0x11002000 if DEBUG_MT8127_UART0 1600 default 0x11006000 if DEBUG_MT6589_UART0 1601 default 0x11009000 if DEBUG_MT8135_UART3 1602 default 0x16000000 if DEBUG_INTEGRATOR 1603 default 0x1600d000 if DEBUG_SD5203_UART 1604 default 0x18000300 if DEBUG_BCM_5301X 1605 default 0x18000400 if DEBUG_BCM_HR2 1606 default 0x18023000 if DEBUG_BCM_IPROC_UART3 1607 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1 1608 default 0x20001000 if DEBUG_HIP01_UART 1609 default 0x20060000 if DEBUG_RK29_UART0 1610 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1611 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1612 default 0x20201000 if DEBUG_BCM2835 1613 default 0x3e000000 if DEBUG_BCM_KONA_UART 1614 default 0x3f201000 if DEBUG_BCM2836 1615 default 0x40010000 if STM32MP1_DEBUG_UART 1616 default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \ 1617 STM32H7_DEBUG_UART 1618 default 0x40028000 if DEBUG_AT91_SAMV7_USART1 1619 default 0x40081000 if DEBUG_LPC18XX_UART0 1620 default 0x40090000 if DEBUG_LPC32XX 1621 default 0x40100000 if DEBUG_PXA_UART1 1622 default 0x42000000 if DEBUG_GEMINI 1623 default 0x44e09000 if DEBUG_AM33XXUART1 1624 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 1625 default 0x48022000 if DEBUG_TI81XXUART2 1626 default 0x48024000 if DEBUG_TI81XXUART3 1627 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \ 1628 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1 1629 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \ 1630 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2 1631 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4 1632 default 0x49020000 if DEBUG_OMAP3UART3 1633 default 0x49042000 if DEBUG_OMAP3UART4 1634 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1635 DEBUG_S3C2410_UART0) 1636 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1637 DEBUG_S3C2410_UART1) 1638 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1639 DEBUG_S3C2410_UART2) 1640 default 0x78000000 if DEBUG_CNS3XXX 1641 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1 1642 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 1643 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 1644 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 1645 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 1646 default 0x80010000 if DEBUG_ASM9260_UART 1647 default 0x80070000 if DEBUG_IMX23_UART 1648 default 0x80074000 if DEBUG_IMX28_UART 1649 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX 1650 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1651 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX 1652 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1653 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1654 default 0xd0000000 if DEBUG_SPEAR3XX 1655 default 0xd0012000 if DEBUG_MVEBU_UART0 1656 default 0xc81004c0 if DEBUG_MESON_UARTAO 1657 default 0xd4017000 if DEBUG_MMP_UART2 1658 default 0xd4018000 if DEBUG_MMP_UART3 1659 default 0xe0000000 if DEBUG_SPEAR13XX 1660 default 0xe4007000 if DEBUG_HIP04_UART 1661 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0 1662 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1 1663 default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2 1664 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4 1665 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2 1666 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0 1667 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1 1668 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4 1669 default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2 1670 default 0xe8009000 if DEBUG_R7S9210_SCIF4 1671 default 0xf0000000 if DEBUG_DIGICOLOR_UA0 1672 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE 1673 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE 1674 default 0xf7fc9000 if DEBUG_BERLIN_UART 1675 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1 1676 default 0xf8b00000 if DEBUG_HIX5HD2_UART 1677 default 0xf991e000 if DEBUG_QCOM_UARTDM 1678 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3 1679 default 0xfcb00000 if DEBUG_HI3620_UART 1680 default 0xfd883000 if DEBUG_ALPINE_UART0 1681 default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1 1682 default 0xfe800000 if ARCH_IOP32X 1683 default 0xfed32000 if DEBUG_STIH41X_ASC2 1684 default 0xff690000 if DEBUG_RK32_UART2 1685 default 0xffc02000 if DEBUG_SOCFPGA_UART0 1686 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1 1687 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1 1688 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0 1689 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2 1690 default 0xfff36000 if DEBUG_HIGHBANK_UART 1691 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1692 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1693 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1694 default 0xfffe8600 if DEBUG_BCM63XX_UART 1695 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU 1696 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU 1697 depends on ARCH_EP93XX || \ 1698 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1699 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1700 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \ 1701 DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \ 1702 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \ 1703 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \ 1704 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \ 1705 DEBUG_RCAR_GEN2_SCIFA2 || \ 1706 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \ 1707 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \ 1708 DEBUG_S3C64XX_UART || \ 1709 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ 1710 DEBUG_DIGICOLOR_UA0 || \ 1711 DEBUG_AT91_UART || DEBUG_STM32_UART || \ 1712 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \ 1713 DEBUG_STIH418_SBC_ASC0 1714 1715config DEBUG_UART_VIRT 1716 hex "Virtual base address of debug UART" 1717 default 0xc881f000 if DEBUG_RV1108_UART2 1718 default 0xc8821000 if DEBUG_RV1108_UART1 1719 default 0xc8912000 if DEBUG_RV1108_UART0 1720 default 0xe0010fe0 if ARCH_RPC 1721 default 0xf0010000 if DEBUG_ASM9260_UART 1722 default 0xf0100000 if DEBUG_DIGICOLOR_UA0 1723 default 0xf01fb000 if DEBUG_NOMADIK_UART 1724 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836 1725 default 0xf1000300 if DEBUG_BCM_5301X 1726 default 0xf1000400 if DEBUG_BCM_HR2 1727 default 0xf1002000 if DEBUG_MT8127_UART0 1728 default 0xf1006000 if DEBUG_MT6589_UART0 1729 default 0xf1009000 if DEBUG_MT8135_UART3 1730 default 0xf1023000 if DEBUG_BCM_IPROC_UART3 1731 default 0xf11f1000 if DEBUG_VERSATILE 1732 default 0xf1600000 if DEBUG_INTEGRATOR 1733 default 0xf1c28000 if DEBUG_SUNXI_UART0 1734 default 0xf1c28400 if DEBUG_SUNXI_UART1 1735 default 0xf1f02800 if DEBUG_SUNXI_R_UART 1736 default 0xf31004c0 if DEBUG_MESON_UARTAO 1737 default 0xf4090000 if DEBUG_LPC32XX 1738 default 0xf4200000 if DEBUG_GEMINI 1739 default 0xf6200000 if DEBUG_PXA_UART1 1740 default 0xf7000000 if DEBUG_SUN9I_UART0 1741 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 1742 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1743 DEBUG_S3C2410_UART0) 1744 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 1745 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 1746 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 1747 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1748 DEBUG_S3C2410_UART1) 1749 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1750 DEBUG_S3C2410_UART2) 1751 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1 1752 default 0xf7fc9000 if DEBUG_BERLIN_UART 1753 default 0xf8007000 if DEBUG_HIP04_UART 1754 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 1755 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 1756 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU 1757 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU 1758 default 0xf9530000 if DEBUG_STIH418_SBC_ASC0 1759 default 0xf9e09000 if DEBUG_AM33XXUART1 1760 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 1761 default 0xfa022000 if DEBUG_TI81XXUART2 1762 default 0xfa024000 if DEBUG_TI81XXUART3 1763 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \ 1764 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1 1765 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \ 1766 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2 1767 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4 1768 default 0xfa71e000 if DEBUG_QCOM_UARTDM 1769 default 0xfb002000 if DEBUG_CNS3XXX 1770 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT 1771 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3 1772 default 0xfb020000 if DEBUG_OMAP3UART3 1773 default 0xfb042000 if DEBUG_OMAP3UART4 1774 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT 1775 default 0xfcfe8600 if DEBUG_BCM63XX_UART 1776 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX 1777 default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1 1778 default 0xfd883000 if DEBUG_ALPINE_UART0 1779 default 0xfdd32000 if DEBUG_STIH41X_ASC2 1780 default 0xfe010000 if STM32MP1_DEBUG_UART 1781 default 0xfe017000 if DEBUG_MMP_UART2 1782 default 0xfe018000 if DEBUG_MMP_UART3 1783 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART 1784 default 0xfe300000 if DEBUG_BCM_KONA_UART 1785 default 0xfe800000 if ARCH_IOP32X 1786 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART 1787 default 0xfeb24000 if DEBUG_RK3X_UART0 1788 default 0xfeb26000 if DEBUG_RK3X_UART1 1789 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0 1790 default 0xfeb31000 if DEBUG_KEYSTONE_UART1 1791 default 0xfec02000 if DEBUG_SOCFPGA_UART0 1792 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1 1793 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1 1794 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE 1795 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE 1796 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0 1797 default 0xfec90000 if DEBUG_RK32_UART2 1798 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1 1799 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART 1800 default 0xfed60000 if DEBUG_RK29_UART0 1801 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1802 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1803 default 0xfedc0000 if DEBUG_EP93XX 1804 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1 1805 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1806 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1807 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1808 default 0xfef36000 if DEBUG_HIGHBANK_UART 1809 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1810 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1811 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1812 default 0xffd01000 if DEBUG_HIP01_UART 1813 default DEBUG_UART_PHYS if !MMU 1814 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1815 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1816 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ 1817 DEBUG_S3C64XX_UART || \ 1818 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ 1819 DEBUG_DIGICOLOR_UA0 || \ 1820 DEBUG_AT91_UART || DEBUG_STM32_UART || \ 1821 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \ 1822 DEBUG_STIH418_SBC_ASC0 1823 1824config DEBUG_UART_8250_SHIFT 1825 int "Register offset shift for the 8250 debug UART" 1826 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1827 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \ 1828 DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \ 1829 DEBUG_OMAP7XXUART3 1830 default 2 1831 1832config DEBUG_UART_8250_WORD 1833 bool "Use 32-bit accesses for 8250 UART" 1834 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1835 depends on DEBUG_UART_8250_SHIFT >= 2 1836 default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \ 1837 DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \ 1838 DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \ 1839 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \ 1840 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \ 1841 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 1842 1843config DEBUG_UART_8250_PALMCHIP 1844 bool "8250 UART is Palmchip BK-310x" 1845 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1846 help 1847 Palmchip provides a UART implementation compatible with 16550 1848 except for having a different register layout. Say Y here if 1849 the debug UART is of this type. 1850 1851config DEBUG_UNCOMPRESS 1852 bool "Enable decompressor debugging via DEBUG_LL output" 1853 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1854 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ 1855 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \ 1856 !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING 1857 help 1858 This option influences the normal decompressor output for 1859 multiplatform kernels. Normally, multiplatform kernels disable 1860 decompressor output because it is not possible to know where to 1861 send the decompressor output. 1862 1863 When this option is set, the selected DEBUG_LL output method 1864 will be re-used for normal decompressor output on multiplatform 1865 kernels. 1866 1867 1868config UNCOMPRESS_INCLUDE 1869 string 1870 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ 1871 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1872 default "mach/uncompress.h" 1873 1874config EARLY_PRINTK 1875 bool "Early printk" 1876 depends on DEBUG_LL 1877 help 1878 Say Y here if you want to have an early console using the 1879 kernel low-level debugging functions. Add earlyprintk to your 1880 kernel parameters to enable this console. 1881 1882config ARM_KPROBES_TEST 1883 tristate "Kprobes test module" 1884 depends on KPROBES && MODULES 1885 help 1886 Perform tests of kprobes API and instruction set simulation. 1887 1888config PID_IN_CONTEXTIDR 1889 bool "Write the current PID to the CONTEXTIDR register" 1890 depends on CPU_COPY_V6 1891 help 1892 Enabling this option causes the kernel to write the current PID to 1893 the PROCID field of the CONTEXTIDR register, at the expense of some 1894 additional instructions during context switch. Say Y here only if you 1895 are planning to use hardware trace tools with this kernel. 1896 1897source "drivers/hwtracing/coresight/Kconfig" 1898