1menu "Kernel hacking" 2 3source "lib/Kconfig.debug" 4 5config ARM_PTDUMP 6 bool "Export kernel pagetable layout to userspace via debugfs" 7 depends on DEBUG_KERNEL 8 depends on MMU 9 select DEBUG_FS 10 ---help--- 11 Say Y here if you want to show the kernel pagetable layout in a 12 debugfs file. This information is only useful for kernel developers 13 who are working in architecture specific areas of the kernel. 14 It is probably not a good idea to enable this feature in a production 15 kernel. 16 If in doubt, say "N" 17 18# RMK wants arm kernels compiled with frame pointers or stack unwinding. 19# If you know what you are doing and are willing to live without stack 20# traces, you can get a slightly smaller kernel by setting this option to 21# n, but then RMK will have to kill you ;). 22config FRAME_POINTER 23 bool 24 depends on !THUMB2_KERNEL 25 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER 26 help 27 If you say N here, the resulting kernel will be slightly smaller and 28 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled, 29 when a problem occurs with the kernel, the information that is 30 reported is severely limited. 31 32config ARM_UNWIND 33 bool "Enable stack unwinding support (EXPERIMENTAL)" 34 depends on AEABI 35 default y 36 help 37 This option enables stack unwinding support in the kernel 38 using the information automatically generated by the 39 compiler. The resulting kernel image is slightly bigger but 40 the performance is not affected. Currently, this feature 41 only works with EABI compilers. If unsure say Y. 42 43config OLD_MCOUNT 44 bool 45 depends on FUNCTION_TRACER && FRAME_POINTER 46 default y 47 48config DEBUG_USER 49 bool "Verbose user fault messages" 50 help 51 When a user program crashes due to an exception, the kernel can 52 print a brief message explaining what the problem was. This is 53 sometimes helpful for debugging but serves no purpose on a 54 production system. Most people should say N here. 55 56 In addition, you need to pass user_debug=N on the kernel command 57 line to enable this feature. N consists of the sum of: 58 59 1 - undefined instruction events 60 2 - system calls 61 4 - invalid data aborts 62 8 - SIGSEGV faults 63 16 - SIGBUS faults 64 65# These options are only for real kernel hackers who want to get their hands dirty. 66config DEBUG_LL 67 bool "Kernel low-level debugging functions (read help!)" 68 depends on DEBUG_KERNEL 69 help 70 Say Y here to include definitions of printascii, printch, printhex 71 in the kernel. This is helpful if you are debugging code that 72 executes before the console is initialized. 73 74 Note that selecting this option will limit the kernel to a single 75 UART definition, as specified below. Attempting to boot the kernel 76 image on a different platform *will not work*, so this option should 77 not be enabled for kernels that are intended to be portable. 78 79choice 80 prompt "Kernel low-level debugging port" 81 depends on DEBUG_LL 82 83 config DEBUG_ALPINE_UART0 84 bool "Kernel low-level debugging messages via Alpine UART0" 85 depends on ARCH_ALPINE 86 select DEBUG_UART_8250 87 help 88 Say Y here if you want kernel low-level debugging support 89 on Alpine based platforms. 90 91 config DEBUG_ASM9260_UART 92 bool "Kernel low-level debugging via asm9260 UART" 93 depends on MACH_ASM9260 94 help 95 Say Y here if you want the debug print routines to direct 96 their output to an UART or USART port on asm9260 based 97 machines. 98 99 DEBUG_UART_PHYS | DEBUG_UART_VIRT 100 101 0x80000000 | 0xf0000000 | UART0 102 0x80004000 | 0xf0004000 | UART1 103 0x80008000 | 0xf0008000 | UART2 104 0x8000c000 | 0xf000c000 | UART3 105 0x80010000 | 0xf0010000 | UART4 106 0x80014000 | 0xf0014000 | UART5 107 0x80018000 | 0xf0018000 | UART6 108 0x8001c000 | 0xf001c000 | UART7 109 0x80020000 | 0xf0020000 | UART8 110 0x80024000 | 0xf0024000 | UART9 111 112 config DEBUG_AT91_UART 113 bool "Kernel low-level debugging on Atmel SoCs" 114 depends on ARCH_AT91 115 help 116 Say Y here if you want the debug print routines to direct 117 their output to the serial port on atmel devices. 118 119 SOC DEBUG_UART_PHYS DEBUG_UART_VIRT PORT 120 rm9200, 9260/9g20, 0xfffff200 0xfefff200 DBGU 121 9261/9g10, 9rl 122 9263, 9g45, sama5d3 0xffffee00 0xfeffee00 DBGU 123 sama5d4 0xfc00c000 0xfb00c000 USART3 124 sama5d4 0xfc069000 0xfb069000 DBGU 125 sama5d2 0xf8020000 0xf7020000 UART1 126 127 Please adjust DEBUG_UART_PHYS configuration options based on 128 your needs. 129 130 config DEBUG_BCM2835 131 bool "Kernel low-level debugging on BCM2835 PL011 UART" 132 depends on ARCH_BCM2835 && ARCH_MULTI_V6 133 select DEBUG_UART_PL01X 134 135 config DEBUG_BCM2836 136 bool "Kernel low-level debugging on BCM2836 PL011 UART" 137 depends on ARCH_BCM2835 && ARCH_MULTI_V7 138 select DEBUG_UART_PL01X 139 140 config DEBUG_BCM_5301X 141 bool "Kernel low-level debugging on BCM5301X UART1" 142 depends on ARCH_BCM_5301X 143 select DEBUG_UART_8250 144 145 config DEBUG_BCM_KONA_UART 146 bool "Kernel low-level debugging messages via BCM KONA UART" 147 depends on ARCH_BCM_MOBILE 148 select DEBUG_UART_8250 149 help 150 Say Y here if you want kernel low-level debugging support 151 on Broadcom SoC platforms. 152 This low level debug works for Broadcom 153 mobile SoCs in the Kona family of chips (e.g. bcm28155, 154 bcm11351, etc...) 155 156 config DEBUG_BCM63XX_UART 157 bool "Kernel low-level debugging on BCM63XX UART" 158 depends on ARCH_BCM_63XX 159 160 config DEBUG_BERLIN_UART 161 bool "Marvell Berlin SoC Debug UART" 162 depends on ARCH_BERLIN 163 select DEBUG_UART_8250 164 help 165 Say Y here if you want kernel low-level debugging support 166 on Marvell Berlin SoC based platforms. 167 168 config DEBUG_BRCMSTB_UART 169 bool "Use BRCMSTB UART for low-level debug" 170 depends on ARCH_BRCMSTB 171 select DEBUG_UART_8250 172 help 173 Say Y here if you want the debug print routines to direct 174 their output to the first serial port on these devices. 175 176 If you have a Broadcom STB chip and would like early print 177 messages to appear over the UART, select this option. 178 179 config DEBUG_CLPS711X_UART1 180 bool "Kernel low-level debugging messages via UART1" 181 depends on ARCH_CLPS711X 182 help 183 Say Y here if you want the debug print routines to direct 184 their output to the first serial port on these devices. 185 186 config DEBUG_CLPS711X_UART2 187 bool "Kernel low-level debugging messages via UART2" 188 depends on ARCH_CLPS711X 189 help 190 Say Y here if you want the debug print routines to direct 191 their output to the second serial port on these devices. 192 193 config DEBUG_CNS3XXX 194 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx" 195 depends on ARCH_CNS3XXX 196 select DEBUG_UART_8250 197 help 198 Say Y here if you want the debug print routines to direct 199 their output to the CNS3xxx UART0. 200 201 config DEBUG_DAVINCI_DA8XX_UART1 202 bool "Kernel low-level debugging on DaVinci DA8XX using UART1" 203 depends on ARCH_DAVINCI_DA8XX 204 select DEBUG_UART_8250 205 help 206 Say Y here if you want the debug print routines to direct 207 their output to UART1 serial port on DaVinci DA8XX devices. 208 209 config DEBUG_DAVINCI_DA8XX_UART2 210 bool "Kernel low-level debugging on DaVinci DA8XX using UART2" 211 depends on ARCH_DAVINCI_DA8XX 212 select DEBUG_UART_8250 213 help 214 Say Y here if you want the debug print routines to direct 215 their output to UART2 serial port on DaVinci DA8XX devices. 216 217 config DEBUG_DAVINCI_DMx_UART0 218 bool "Kernel low-level debugging on DaVinci DMx using UART0" 219 depends on ARCH_DAVINCI_DMx 220 select DEBUG_UART_8250 221 help 222 Say Y here if you want the debug print routines to direct 223 their output to UART0 serial port on DaVinci DMx devices. 224 225 config DEBUG_DC21285_PORT 226 bool "Kernel low-level debugging messages via footbridge serial port" 227 depends on FOOTBRIDGE 228 help 229 Say Y here if you want the debug print routines to direct 230 their output to the serial port in the DC21285 (Footbridge). 231 232 config DEBUG_DIGICOLOR_UA0 233 bool "Kernel low-level debugging messages via Digicolor UA0" 234 depends on ARCH_DIGICOLOR 235 help 236 Say Y here if you want the debug print routines to direct 237 their output to the UA0 serial port in the CX92755. 238 239 config DEBUG_EP93XX 240 bool "Kernel low-level debugging messages via ep93xx UART" 241 depends on ARCH_EP93XX 242 select DEBUG_UART_PL01X 243 help 244 Say Y here if you want kernel low-level debugging support 245 on Cirrus Logic EP93xx based platforms. 246 247 config DEBUG_FOOTBRIDGE_COM1 248 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" 249 depends on FOOTBRIDGE 250 select DEBUG_UART_8250 251 help 252 Say Y here if you want the debug print routines to direct 253 their output to the 8250 at PCI COM1. 254 255 config DEBUG_GEMINI 256 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART" 257 depends on ARCH_GEMINI 258 select DEBUG_UART_8250 259 help 260 Say Y here if you want kernel low-level debugging support 261 on Cortina Gemini based platforms. 262 263 config DEBUG_HI3620_UART 264 bool "Hisilicon HI3620 Debug UART" 265 depends on ARCH_HI3xxx 266 select DEBUG_UART_PL01X 267 help 268 Say Y here if you want kernel low-level debugging support 269 on HI3620 UART. 270 271 config DEBUG_HI3716_UART 272 bool "Hisilicon Hi3716 Debug UART" 273 depends on ARCH_HI3xxx 274 select DEBUG_UART_PL01X 275 help 276 Say Y here if you want kernel low-level debugging support 277 on HI3716 UART. 278 279 config DEBUG_HIGHBANK_UART 280 bool "Kernel low-level debugging messages via Highbank UART" 281 depends on ARCH_HIGHBANK 282 select DEBUG_UART_PL01X 283 help 284 Say Y here if you want the debug print routines to direct 285 their output to the UART on Highbank based devices. 286 287 config DEBUG_HIP01_UART 288 bool "Hisilicon Hip01 Debug UART" 289 depends on ARCH_HIP01 290 select DEBUG_UART_8250 291 help 292 Say Y here if you want kernel low-level debugging support 293 on HIP01 UART. 294 295 config DEBUG_HIP04_UART 296 bool "Hisilicon HiP04 Debug UART" 297 depends on ARCH_HIP04 298 select DEBUG_UART_8250 299 help 300 Say Y here if you want kernel low-level debugging support 301 on HIP04 UART. 302 303 config DEBUG_HIX5HD2_UART 304 bool "Hisilicon Hix5hd2 Debug UART" 305 depends on ARCH_HIX5HD2 306 select DEBUG_UART_PL01X 307 help 308 Say Y here if you want kernel low-level debugging support 309 on Hix5hd2 UART. 310 311 config DEBUG_IMX1_UART 312 bool "i.MX1 Debug UART" 313 depends on SOC_IMX1 314 help 315 Say Y here if you want kernel low-level debugging support 316 on i.MX1. 317 318 config DEBUG_IMX23_UART 319 bool "i.MX23 Debug UART" 320 depends on SOC_IMX23 321 select DEBUG_UART_PL01X 322 help 323 Say Y here if you want kernel low-level debugging support 324 on i.MX23. 325 326 config DEBUG_IMX25_UART 327 bool "i.MX25 Debug UART" 328 depends on SOC_IMX25 329 help 330 Say Y here if you want kernel low-level debugging support 331 on i.MX25. 332 333 config DEBUG_IMX21_IMX27_UART 334 bool "i.MX21 and i.MX27 Debug UART" 335 depends on SOC_IMX21 || SOC_IMX27 336 help 337 Say Y here if you want kernel low-level debugging support 338 on i.MX21 or i.MX27. 339 340 config DEBUG_IMX28_UART 341 bool "i.MX28 Debug UART" 342 depends on SOC_IMX28 343 select DEBUG_UART_PL01X 344 help 345 Say Y here if you want kernel low-level debugging support 346 on i.MX28. 347 348 config DEBUG_IMX31_UART 349 bool "i.MX31 Debug UART" 350 depends on SOC_IMX31 351 help 352 Say Y here if you want kernel low-level debugging support 353 on i.MX31. 354 355 config DEBUG_IMX35_UART 356 bool "i.MX35 Debug UART" 357 depends on SOC_IMX35 358 help 359 Say Y here if you want kernel low-level debugging support 360 on i.MX35. 361 362 config DEBUG_IMX50_UART 363 bool "i.MX50 Debug UART" 364 depends on SOC_IMX50 365 help 366 Say Y here if you want kernel low-level debugging support 367 on i.MX50. 368 369 config DEBUG_IMX51_UART 370 bool "i.MX51 Debug UART" 371 depends on SOC_IMX51 372 help 373 Say Y here if you want kernel low-level debugging support 374 on i.MX51. 375 376 config DEBUG_IMX53_UART 377 bool "i.MX53 Debug UART" 378 depends on SOC_IMX53 379 help 380 Say Y here if you want kernel low-level debugging support 381 on i.MX53. 382 383 config DEBUG_IMX6Q_UART 384 bool "i.MX6Q/DL Debug UART" 385 depends on SOC_IMX6Q 386 help 387 Say Y here if you want kernel low-level debugging support 388 on i.MX6Q/DL. 389 390 config DEBUG_IMX6SL_UART 391 bool "i.MX6SL Debug UART" 392 depends on SOC_IMX6SL 393 help 394 Say Y here if you want kernel low-level debugging support 395 on i.MX6SL. 396 397 config DEBUG_IMX6SX_UART 398 bool "i.MX6SX Debug UART" 399 depends on SOC_IMX6SX 400 help 401 Say Y here if you want kernel low-level debugging support 402 on i.MX6SX. 403 404 config DEBUG_IMX6UL_UART 405 bool "i.MX6UL Debug UART" 406 depends on SOC_IMX6UL 407 help 408 Say Y here if you want kernel low-level debugging support 409 on i.MX6UL. 410 411 config DEBUG_IMX7D_UART 412 bool "i.MX7D Debug UART" 413 depends on SOC_IMX7D 414 help 415 Say Y here if you want kernel low-level debugging support 416 on i.MX7D. 417 418 config DEBUG_INTEGRATOR 419 bool "Kernel low-level debugging messages via ARM Integrator UART" 420 depends on ARCH_INTEGRATOR 421 select DEBUG_UART_PL01X 422 help 423 Say Y here if you want kernel low-level debugging support 424 on ARM Integrator platforms. 425 426 config DEBUG_KEYSTONE_UART0 427 bool "Kernel low-level debugging on KEYSTONE2 using UART0" 428 depends on ARCH_KEYSTONE 429 select DEBUG_UART_8250 430 help 431 Say Y here if you want the debug print routines to direct 432 their output to UART0 serial port on KEYSTONE2 devices. 433 434 config DEBUG_KEYSTONE_UART1 435 bool "Kernel low-level debugging on KEYSTONE2 using UART1" 436 depends on ARCH_KEYSTONE 437 select DEBUG_UART_8250 438 help 439 Say Y here if you want the debug print routines to direct 440 their output to UART1 serial port on KEYSTONE2 devices. 441 442 config DEBUG_KS8695_UART 443 bool "KS8695 Debug UART" 444 depends on ARCH_KS8695 445 help 446 Say Y here if you want kernel low-level debugging support 447 on KS8695. 448 449 config DEBUG_LPC18XX_UART0 450 bool "Kernel low-level debugging via LPC18xx/43xx UART0" 451 depends on ARCH_LPC18XX 452 select DEBUG_UART_8250 453 help 454 Say Y here if you want kernel low-level debugging support 455 on NXP LPC18xx/43xx UART0. 456 457 config DEBUG_LPC32XX 458 bool "Kernel low-level debugging messages via NXP LPC32xx UART" 459 depends on ARCH_LPC32XX 460 select DEBUG_UART_8250 461 help 462 Say Y here if you want kernel low-level debugging support 463 on NXP LPC32xx based platforms. 464 465 config DEBUG_MESON_UARTAO 466 bool "Kernel low-level debugging via Meson6 UARTAO" 467 depends on ARCH_MESON 468 help 469 Say Y here if you want kernel low-lever debugging support 470 on Amlogic Meson6 based platforms on the UARTAO. 471 472 config DEBUG_MMP_UART2 473 bool "Kernel low-level debugging message via MMP UART2" 474 depends on ARCH_MMP 475 select DEBUG_UART_8250 476 help 477 Say Y here if you want kernel low-level debugging support 478 on MMP UART2. 479 480 config DEBUG_MMP_UART3 481 bool "Kernel low-level debugging message via MMP UART3" 482 depends on ARCH_MMP 483 select DEBUG_UART_8250 484 help 485 Say Y here if you want kernel low-level debugging support 486 on MMP UART3. 487 488 config DEBUG_MVEBU_UART0 489 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)" 490 depends on ARCH_MVEBU 491 depends on ARCH_MVEBU && CPU_V7 492 select DEBUG_UART_8250 493 help 494 Say Y here if you want kernel low-level debugging support 495 on MVEBU based platforms on UART0. 496 497 This option should be used with the old bootloaders 498 that left the internal registers mapped at 499 0xd0000000. As of today, this is the case on 500 platforms such as the Globalscale Mirabox or the 501 Plathome OpenBlocks AX3, when using the original 502 bootloader. 503 504 This option will not work on older Marvell platforms 505 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick 506 the "new bootloader" variant. 507 508 If the wrong DEBUG_MVEBU_UART* option is selected, 509 when u-boot hands over to the kernel, the system 510 silently crashes, with no serial output at all. 511 512 config DEBUG_MVEBU_UART0_ALTERNATE 513 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)" 514 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X 515 select DEBUG_UART_8250 516 help 517 Say Y here if you want kernel low-level debugging support 518 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx, 519 Kirkwood, Dove, MV78xx0, Orion5x). 520 521 522 This option should be used with the new bootloaders 523 that remap the internal registers at 0xf1000000. 524 525 If the wrong DEBUG_MVEBU_UART* option is selected, 526 when u-boot hands over to the kernel, the system 527 silently crashes, with no serial output at all. 528 529 config DEBUG_MVEBU_UART1_ALTERNATE 530 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)" 531 depends on ARCH_MVEBU 532 select DEBUG_UART_8250 533 help 534 Say Y here if you want kernel low-level debugging support 535 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx, 536 Kirkwood, Dove, MV78xx0, Orion5x). 537 538 This option should be used with the new bootloaders 539 that remap the internal registers at 0xf1000000. 540 All of the older (pre Armada XP/370) platforms also use 541 this address, regardless of the boot loader version. 542 543 If the wrong DEBUG_MVEBU_UART* option is selected, 544 when u-boot hands over to the kernel, the system 545 silently crashes, with no serial output at all. 546 547 config DEBUG_MT6589_UART0 548 bool "Mediatek mt6589 UART0" 549 depends on ARCH_MEDIATEK 550 select DEBUG_UART_8250 551 help 552 Say Y here if you want kernel low-level debugging support 553 for Mediatek mt6589 based platforms on UART0. 554 555 config DEBUG_MT8127_UART0 556 bool "Mediatek mt8127/mt6592 UART0" 557 depends on ARCH_MEDIATEK 558 select DEBUG_UART_8250 559 help 560 Say Y here if you want kernel low-level debugging support 561 for Mediatek mt8127 based platforms on UART0. 562 563 config DEBUG_MT8135_UART3 564 bool "Mediatek mt8135 UART3" 565 depends on ARCH_MEDIATEK 566 select DEBUG_UART_8250 567 help 568 Say Y here if you want kernel low-level debugging support 569 for Mediatek mt8135 based platforms on UART3. 570 571 config DEBUG_NETX_UART 572 bool "Kernel low-level debugging messages via NetX UART" 573 depends on ARCH_NETX 574 help 575 Say Y here if you want kernel low-level debugging support 576 on Hilscher NetX based platforms. 577 578 config DEBUG_NOMADIK_UART 579 bool "Kernel low-level debugging messages via NOMADIK UART" 580 depends on ARCH_NOMADIK 581 select DEBUG_UART_PL01X 582 help 583 Say Y here if you want kernel low-level debugging support 584 on NOMADIK based platforms. 585 586 config DEBUG_NSPIRE_CLASSIC_UART 587 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" 588 depends on ARCH_NSPIRE 589 select DEBUG_UART_8250 590 help 591 Say Y here if you want kernel low-level debugging support 592 on TI-NSPIRE classic models. 593 594 config DEBUG_NSPIRE_CX_UART 595 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" 596 depends on ARCH_NSPIRE 597 select DEBUG_UART_PL01X 598 help 599 Say Y here if you want kernel low-level debugging support 600 on TI-NSPIRE CX models. 601 602 config DEBUG_OMAP1UART1 603 bool "Kernel low-level debugging via OMAP1 UART1" 604 depends on ARCH_OMAP1 605 select DEBUG_UART_8250 606 help 607 Say Y here if you want kernel low-level debugging support 608 on OMAP1 based platforms (except OMAP730) on the UART1. 609 610 config DEBUG_OMAP1UART2 611 bool "Kernel low-level debugging via OMAP1 UART2" 612 depends on ARCH_OMAP1 613 select DEBUG_UART_8250 614 help 615 Say Y here if you want kernel low-level debugging support 616 on OMAP1 based platforms (except OMAP730) on the UART2. 617 618 config DEBUG_OMAP1UART3 619 bool "Kernel low-level debugging via OMAP1 UART3" 620 depends on ARCH_OMAP1 621 select DEBUG_UART_8250 622 help 623 Say Y here if you want kernel low-level debugging support 624 on OMAP1 based platforms (except OMAP730) on the UART3. 625 626 config DEBUG_OMAP2UART1 627 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" 628 depends on ARCH_OMAP2PLUS 629 select DEBUG_OMAP2PLUS_UART 630 help 631 This covers at least h4, 2430sdp, 3430sdp, 3630sdp, 632 omap3 torpedo and 3530 lv som. 633 634 config DEBUG_OMAP2UART2 635 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2" 636 depends on ARCH_OMAP2PLUS 637 select DEBUG_OMAP2PLUS_UART 638 639 config DEBUG_OMAP2UART3 640 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)" 641 depends on ARCH_OMAP2PLUS 642 select DEBUG_OMAP2PLUS_UART 643 644 config DEBUG_OMAP3UART3 645 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)" 646 depends on ARCH_OMAP2PLUS 647 select DEBUG_OMAP2PLUS_UART 648 help 649 This covers at least cm_t3x, beagle, crane, devkit8000, 650 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, 651 and 3517evm. 652 653 config DEBUG_OMAP4UART3 654 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" 655 depends on ARCH_OMAP2PLUS 656 select DEBUG_OMAP2PLUS_UART 657 658 config DEBUG_OMAP3UART4 659 bool "Kernel low-level debugging messages via OMAP36XX UART4" 660 depends on ARCH_OMAP2PLUS 661 select DEBUG_OMAP2PLUS_UART 662 663 config DEBUG_OMAP4UART4 664 bool "Kernel low-level debugging messages via OMAP4/5 UART4" 665 depends on ARCH_OMAP2PLUS 666 select DEBUG_OMAP2PLUS_UART 667 668 config DEBUG_OMAP7XXUART1 669 bool "Kernel low-level debugging via OMAP730 UART1" 670 depends on ARCH_OMAP730 671 select DEBUG_UART_8250 672 help 673 Say Y here if you want kernel low-level debugging support 674 on OMAP730 based platforms on the UART1. 675 676 config DEBUG_OMAP7XXUART2 677 bool "Kernel low-level debugging via OMAP730 UART2" 678 depends on ARCH_OMAP730 679 select DEBUG_UART_8250 680 help 681 Say Y here if you want kernel low-level debugging support 682 on OMAP730 based platforms on the UART2. 683 684 config DEBUG_OMAP7XXUART3 685 bool "Kernel low-level debugging via OMAP730 UART3" 686 depends on ARCH_OMAP730 687 select DEBUG_UART_8250 688 help 689 Say Y here if you want kernel low-level debugging support 690 on OMAP730 based platforms on the UART3. 691 692 config DEBUG_TI81XXUART1 693 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)" 694 depends on ARCH_OMAP2PLUS 695 select DEBUG_OMAP2PLUS_UART 696 697 config DEBUG_TI81XXUART2 698 bool "Kernel low-level debugging messages via TI81XX UART2" 699 depends on ARCH_OMAP2PLUS 700 select DEBUG_OMAP2PLUS_UART 701 702 config DEBUG_TI81XXUART3 703 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)" 704 depends on ARCH_OMAP2PLUS 705 select DEBUG_OMAP2PLUS_UART 706 707 config DEBUG_AM33XXUART1 708 bool "Kernel low-level debugging messages via AM33XX UART1" 709 depends on ARCH_OMAP2PLUS 710 select DEBUG_OMAP2PLUS_UART 711 712 config DEBUG_ZOOM_UART 713 bool "Kernel low-level debugging messages via Zoom2/3 UART" 714 depends on ARCH_OMAP2PLUS 715 select DEBUG_OMAP2PLUS_UART 716 717 config DEBUG_PICOXCELL_UART 718 depends on ARCH_PICOXCELL 719 bool "Use PicoXcell UART for low-level debug" 720 select DEBUG_UART_8250 721 help 722 Say Y here if you want kernel low-level debugging support 723 on PicoXcell based platforms. 724 725 config DEBUG_PXA_UART1 726 depends on ARCH_PXA 727 bool "Use PXA UART1 for low-level debug" 728 select DEBUG_UART_8250 729 help 730 Say Y here if you want kernel low-level debugging support 731 on PXA UART1. 732 733 config DEBUG_QCOM_UARTDM 734 bool "Kernel low-level debugging messages via QCOM UARTDM" 735 depends on ARCH_QCOM 736 help 737 Say Y here if you want the debug print routines to direct 738 their output to the serial port on Qualcomm devices. 739 740 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT 741 APQ8064 0x16640000 0xf0040000 742 APQ8084 0xf995e000 0xfa75e000 743 MSM8X60 0x19c40000 0xf0040000 744 MSM8960 0x16440000 0xf0040000 745 MSM8974 0xf991e000 0xfa71e000 746 747 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration 748 options based on your needs. 749 750 config DEBUG_REALVIEW_STD_PORT 751 bool "RealView Default UART" 752 depends on ARCH_REALVIEW 753 select DEBUG_UART_PL01X 754 help 755 Say Y here if you want the debug print routines to direct 756 their output to the serial port on RealView EB, PB11MP, PBA8 757 and PBX platforms. 758 759 config DEBUG_REALVIEW_PB1176_PORT 760 bool "RealView PB1176 UART" 761 depends on MACH_REALVIEW_PB1176 762 select DEBUG_UART_PL01X 763 help 764 Say Y here if you want the debug print routines to direct 765 their output to the standard serial port on the RealView 766 PB1176 platform. 767 768 config DEBUG_RK29_UART0 769 bool "Kernel low-level debugging messages via Rockchip RK29 UART0" 770 depends on ARCH_ROCKCHIP 771 select DEBUG_UART_8250 772 help 773 Say Y here if you want kernel low-level debugging support 774 on Rockchip based platforms. 775 776 config DEBUG_RK29_UART1 777 bool "Kernel low-level debugging messages via Rockchip RK29 UART1" 778 depends on ARCH_ROCKCHIP 779 select DEBUG_UART_8250 780 help 781 Say Y here if you want kernel low-level debugging support 782 on Rockchip based platforms. 783 784 config DEBUG_RK29_UART2 785 bool "Kernel low-level debugging messages via Rockchip RK29 UART2" 786 depends on ARCH_ROCKCHIP 787 select DEBUG_UART_8250 788 help 789 Say Y here if you want kernel low-level debugging support 790 on Rockchip based platforms. 791 792 config DEBUG_RK3X_UART0 793 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0" 794 depends on ARCH_ROCKCHIP 795 select DEBUG_UART_8250 796 help 797 Say Y here if you want kernel low-level debugging support 798 on Rockchip based platforms. 799 800 config DEBUG_RK3X_UART1 801 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1" 802 depends on ARCH_ROCKCHIP 803 select DEBUG_UART_8250 804 help 805 Say Y here if you want kernel low-level debugging support 806 on Rockchip based platforms. 807 808 config DEBUG_RK3X_UART2 809 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2" 810 depends on ARCH_ROCKCHIP 811 select DEBUG_UART_8250 812 help 813 Say Y here if you want kernel low-level debugging support 814 on Rockchip based platforms. 815 816 config DEBUG_RK3X_UART3 817 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3" 818 depends on ARCH_ROCKCHIP 819 select DEBUG_UART_8250 820 help 821 Say Y here if you want kernel low-level debugging support 822 on Rockchip based platforms. 823 824 config DEBUG_RK32_UART2 825 bool "Kernel low-level debugging messages via Rockchip RK32 UART2" 826 depends on ARCH_ROCKCHIP 827 select DEBUG_UART_8250 828 help 829 Say Y here if you want kernel low-level debugging support 830 on Rockchip RK32xx based platforms. 831 832 config DEBUG_R7S72100_SCIF2 833 bool "Kernel low-level debugging messages via SCIF2 on R7S72100" 834 depends on ARCH_R7S72100 835 help 836 Say Y here if you want kernel low-level debugging support 837 via SCIF2 on Renesas RZ/A1H (R7S72100). 838 839 config DEBUG_RCAR_GEN1_SCIF0 840 bool "Kernel low-level debugging messages via SCIF0 on R8A7778" 841 depends on ARCH_R8A7778 842 help 843 Say Y here if you want kernel low-level debugging support 844 via SCIF0 on Renesas R-Car M1A (R8A7778). 845 846 config DEBUG_RCAR_GEN1_SCIF2 847 bool "Kernel low-level debugging messages via SCIF2 on R8A7779" 848 depends on ARCH_R8A7779 849 help 850 Say Y here if you want kernel low-level debugging support 851 via SCIF2 on Renesas R-Car H1 (R8A7779). 852 853 config DEBUG_RCAR_GEN2_SCIF0 854 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793" 855 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793 856 help 857 Say Y here if you want kernel low-level debugging support 858 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or 859 M2-N (R8A7793). 860 861 config DEBUG_RCAR_GEN2_SCIF2 862 bool "Kernel low-level debugging messages via SCIF2 on R8A7794" 863 depends on ARCH_R8A7794 864 help 865 Say Y here if you want kernel low-level debugging support 866 via SCIF2 on Renesas R-Car E2 (R8A7794). 867 868 config DEBUG_RMOBILE_SCIFA0 869 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4" 870 depends on ARCH_R8A73A4 871 help 872 Say Y here if you want kernel low-level debugging support 873 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4). 874 875 config DEBUG_RMOBILE_SCIFA1 876 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740" 877 depends on ARCH_R8A7740 878 help 879 Say Y here if you want kernel low-level debugging support 880 via SCIFA1 on Renesas R-Mobile A1 (R8A7740). 881 882 config DEBUG_RMOBILE_SCIFA4 883 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0" 884 depends on ARCH_SH73A0 885 help 886 Say Y here if you want kernel low-level debugging support 887 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0). 888 889 config DEBUG_S3C_UART0 890 depends on PLAT_SAMSUNG 891 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 892 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 893 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 894 select DEBUG_S5PV210_UART if ARCH_S5PV210 895 bool "Use Samsung S3C UART 0 for low-level debug" 896 help 897 Say Y here if you want the debug print routines to direct 898 their output to UART 0. The port must have been initialised 899 by the boot-loader before use. 900 901 config DEBUG_S3C_UART1 902 depends on PLAT_SAMSUNG 903 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 904 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 905 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 906 select DEBUG_S5PV210_UART if ARCH_S5PV210 907 bool "Use Samsung S3C UART 1 for low-level debug" 908 help 909 Say Y here if you want the debug print routines to direct 910 their output to UART 1. The port must have been initialised 911 by the boot-loader before use. 912 913 config DEBUG_S3C_UART2 914 depends on PLAT_SAMSUNG 915 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 916 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 917 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 918 select DEBUG_S5PV210_UART if ARCH_S5PV210 919 bool "Use Samsung S3C UART 2 for low-level debug" 920 help 921 Say Y here if you want the debug print routines to direct 922 their output to UART 2. The port must have been initialised 923 by the boot-loader before use. 924 925 config DEBUG_S3C_UART3 926 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210) 927 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 928 select DEBUG_S3C64XX_UART if ARCH_S3C64XX 929 select DEBUG_S5PV210_UART if ARCH_S5PV210 930 bool "Use Samsung S3C UART 3 for low-level debug" 931 help 932 Say Y here if you want the debug print routines to direct 933 their output to UART 3. The port must have been initialised 934 by the boot-loader before use. 935 936 config DEBUG_S3C2410_UART0 937 depends on ARCH_S3C24XX 938 select DEBUG_S3C2410_UART 939 bool "Use S3C2410/S3C2412 UART 0 for low-level debug" 940 help 941 Say Y here if you want the debug print routines to direct 942 their output to UART 0. The port must have been initialised 943 by the boot-loader before use. 944 945 config DEBUG_S3C2410_UART1 946 depends on ARCH_S3C24XX 947 select DEBUG_S3C2410_UART 948 bool "Use S3C2410/S3C2412 UART 1 for low-level debug" 949 help 950 Say Y here if you want the debug print routines to direct 951 their output to UART 1. The port must have been initialised 952 by the boot-loader before use. 953 954 config DEBUG_S3C2410_UART2 955 depends on ARCH_S3C24XX 956 select DEBUG_S3C2410_UART 957 bool "Use S3C2410/S3C2412 UART 2 for low-level debug" 958 help 959 Say Y here if you want the debug print routines to direct 960 their output to UART 2. The port must have been initialised 961 by the boot-loader before use. 962 963 config DEBUG_SA1100 964 depends on ARCH_SA1100 965 bool "Use SA1100 UARTs for low-level debug" 966 help 967 Say Y here if you want kernel low-level debugging support 968 on SA-11x0 UART ports. The kernel will check for the first 969 enabled UART in a sequence 3-1-2. 970 971 config DEBUG_SOCFPGA_UART0 972 depends on ARCH_SOCFPGA 973 bool "Use SOCFPGA UART0 for low-level debug" 974 select DEBUG_UART_8250 975 help 976 Say Y here if you want kernel low-level debugging support 977 on SOCFPGA(Cyclone 5 and Arria 5) based platforms. 978 979 config DEBUG_SOCFPGA_UART1 980 depends on ARCH_SOCFPGA 981 bool "Use SOCFPGA UART1 for low-level debug" 982 select DEBUG_UART_8250 983 help 984 Say Y here if you want kernel low-level debugging support 985 on SOCFPGA(Arria 10) based platforms. 986 987 988 config DEBUG_SUN9I_UART0 989 bool "Kernel low-level debugging messages via sun9i UART0" 990 depends on MACH_SUN9I 991 select DEBUG_UART_8250 992 help 993 Say Y here if you want kernel low-level debugging support 994 on Allwinner A80 based platforms on the UART0. 995 996 config DEBUG_SUNXI_UART0 997 bool "Kernel low-level debugging messages via sunXi UART0" 998 depends on ARCH_SUNXI 999 select DEBUG_UART_8250 1000 help 1001 Say Y here if you want kernel low-level debugging support 1002 on Allwinner A1X based platforms on the UART0. 1003 1004 config DEBUG_SUNXI_UART1 1005 bool "Kernel low-level debugging messages via sunXi UART1" 1006 depends on ARCH_SUNXI 1007 select DEBUG_UART_8250 1008 help 1009 Say Y here if you want kernel low-level debugging support 1010 on Allwinner A1X based platforms on the UART1. 1011 1012 config DEBUG_SUNXI_R_UART 1013 bool "Kernel low-level debugging messages via sunXi R_UART" 1014 depends on MACH_SUN6I || MACH_SUN8I 1015 select DEBUG_UART_8250 1016 help 1017 Say Y here if you want kernel low-level debugging support 1018 on Allwinner A31/A23 based platforms on the R_UART. 1019 1020 config DEBUG_SIRFPRIMA2_UART1 1021 bool "Kernel low-level debugging messages via SiRFprimaII UART1" 1022 depends on ARCH_PRIMA2 1023 select DEBUG_SIRFSOC_UART 1024 help 1025 Say Y here if you want the debug print routines to direct 1026 their output to the uart1 port on SiRFprimaII devices. 1027 1028 config DEBUG_SIRFATLAS7_UART0 1029 bool "Kernel low-level debugging messages via SiRFatlas7 UART0" 1030 depends on ARCH_ATLAS7 1031 select DEBUG_SIRFSOC_UART 1032 help 1033 Say Y here if you want the debug print routines to direct 1034 their output to the uart0 port on SiRFATLAS7 devices.The uart0 1035 is used on SiRFATLAS7 as a extra debug port.sometimes an extra 1036 debug port can be very useful. 1037 1038 config DEBUG_SIRFATLAS7_UART1 1039 bool "Kernel low-level debugging messages via SiRFatlas7 UART1" 1040 depends on ARCH_ATLAS7 1041 select DEBUG_SIRFSOC_UART 1042 help 1043 Say Y here if you want the debug print routines to direct 1044 their output to the uart1 port on SiRFATLAS7 devices. 1045 1046 config DEBUG_SPEAR3XX 1047 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART" 1048 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX 1049 select DEBUG_UART_PL01X 1050 help 1051 Say Y here if you want kernel low-level debugging support 1052 on ST SPEAr based platforms. 1053 1054 config DEBUG_SPEAR13XX 1055 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART" 1056 depends on ARCH_SPEAR13XX 1057 select DEBUG_UART_PL01X 1058 help 1059 Say Y here if you want kernel low-level debugging support 1060 on ST SPEAr13xx based platforms. 1061 1062 config STIH41X_DEBUG_ASC2 1063 bool "Use StiH415/416 ASC2 UART for low-level debug" 1064 depends on ARCH_STI 1065 select DEBUG_STI_UART 1066 help 1067 Say Y here if you want kernel low-level debugging support 1068 on STiH415/416 based platforms like b2000, which has 1069 default UART wired up to ASC2. 1070 1071 If unsure, say N. 1072 1073 config STIH41X_DEBUG_SBC_ASC1 1074 bool "Use StiH415/416 SBC ASC1 UART for low-level debug" 1075 depends on ARCH_STI 1076 select DEBUG_STI_UART 1077 help 1078 Say Y here if you want kernel low-level debugging support 1079 on STiH415/416 based platforms like b2020. which has 1080 default UART wired up to SBC ASC1. 1081 1082 If unsure, say N. 1083 1084 config TEGRA_DEBUG_UART_AUTO_ODMDATA 1085 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" 1086 depends on ARCH_TEGRA 1087 select DEBUG_TEGRA_UART 1088 help 1089 Automatically determines which UART to use for low-level 1090 debug based on the ODMDATA value. This value is part of 1091 the BCT, and is written to the boot memory device using 1092 nvflash, or other flashing tool. When bits 19:18 are 3, 1093 then bits 17:15 indicate which UART to use; 0/1/2/3/4 1094 are UART A/B/C/D/E. 1095 1096 config TEGRA_DEBUG_UARTA 1097 bool "Kernel low-level debugging messages via Tegra UART A" 1098 depends on ARCH_TEGRA 1099 select DEBUG_TEGRA_UART 1100 help 1101 Say Y here if you want kernel low-level debugging support 1102 on Tegra based platforms. 1103 1104 config TEGRA_DEBUG_UARTB 1105 bool "Kernel low-level debugging messages via Tegra UART B" 1106 depends on ARCH_TEGRA 1107 select DEBUG_TEGRA_UART 1108 help 1109 Say Y here if you want kernel low-level debugging support 1110 on Tegra based platforms. 1111 1112 config TEGRA_DEBUG_UARTC 1113 bool "Kernel low-level debugging messages via Tegra UART C" 1114 depends on ARCH_TEGRA 1115 select DEBUG_TEGRA_UART 1116 help 1117 Say Y here if you want kernel low-level debugging support 1118 on Tegra based platforms. 1119 1120 config TEGRA_DEBUG_UARTD 1121 bool "Kernel low-level debugging messages via Tegra UART D" 1122 depends on ARCH_TEGRA 1123 select DEBUG_TEGRA_UART 1124 help 1125 Say Y here if you want kernel low-level debugging support 1126 on Tegra based platforms. 1127 1128 config TEGRA_DEBUG_UARTE 1129 bool "Kernel low-level debugging messages via Tegra UART E" 1130 depends on ARCH_TEGRA 1131 select DEBUG_TEGRA_UART 1132 help 1133 Say Y here if you want kernel low-level debugging support 1134 on Tegra based platforms. 1135 1136 config DEBUG_U300_UART 1137 bool "Kernel low-level debugging messages via U300 UART0" 1138 depends on ARCH_U300 1139 select DEBUG_UART_PL01X 1140 help 1141 Say Y here if you want the debug print routines to direct 1142 their output to the uart port on U300 devices. 1143 1144 config DEBUG_UX500_UART 1145 depends on ARCH_U8500 1146 bool "Use Ux500 UART for low-level debug" 1147 help 1148 Say Y here if you want kernel low-level debugging support 1149 on Ux500 based platforms. 1150 1151 config DEBUG_VERSATILE 1152 bool "Kernel low-level debugging messages via ARM Versatile UART" 1153 depends on ARCH_VERSATILE 1154 select DEBUG_UART_PL01X 1155 help 1156 Say Y here if you want kernel low-level debugging support 1157 on ARM Versatile platforms. 1158 1159 config DEBUG_VEXPRESS_UART0_DETECT 1160 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" 1161 depends on ARCH_VEXPRESS && CPU_CP15_MMU 1162 help 1163 This option enables a simple heuristic which tries to determine 1164 the motherboard's memory map variant (original or RS1) and then 1165 choose the relevant UART0 base address. 1166 1167 Note that this will only work with standard A-class core tiles, 1168 and may fail with non-standard SMM or custom software models. 1169 1170 config DEBUG_VEXPRESS_UART0_CA9 1171 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" 1172 depends on ARCH_VEXPRESS 1173 select DEBUG_UART_PL01X 1174 help 1175 This option selects UART0 at 0x10009000. Except for custom models, 1176 this applies only to the V2P-CA9 tile. 1177 1178 config DEBUG_VEXPRESS_UART0_RS1 1179 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" 1180 depends on ARCH_VEXPRESS 1181 select DEBUG_UART_PL01X 1182 help 1183 This option selects UART0 at 0x1c090000. This applies to most 1184 of the tiles using the RS1 memory map, including all new A-class 1185 core tiles, FPGA-based SMMs and software models. 1186 1187 config DEBUG_VEXPRESS_UART0_CRX 1188 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" 1189 depends on ARCH_VEXPRESS && !MMU 1190 select DEBUG_UART_PL01X 1191 help 1192 This option selects UART0 at 0xb0090000. This is appropriate for 1193 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7 1194 1195 config DEBUG_VF_UART 1196 bool "Vybrid UART" 1197 depends on SOC_VF610 1198 help 1199 Say Y here if you want kernel low-level debugging support 1200 on Vybrid based platforms. 1201 1202 config DEBUG_VT8500_UART0 1203 bool "Use UART0 on VIA/Wondermedia SoCs" 1204 depends on ARCH_VT8500 1205 help 1206 This option selects UART0 on VIA/Wondermedia System-on-a-chip 1207 devices, including VT8500, WM8505, WM8650 and WM8850. 1208 1209 config DEBUG_ZTE_ZX 1210 bool "Use ZTE ZX UART" 1211 select DEBUG_UART_PL01X 1212 depends on ARCH_ZX 1213 help 1214 Say Y here if you are enabling ZTE ZX296702 SOC and need 1215 debug uart support. 1216 1217 This option is preferred over the platform specific 1218 options; the platform specific options are deprecated 1219 and will be soon removed. 1220 1221 config DEBUG_ZYNQ_UART0 1222 bool "Kernel low-level debugging on Xilinx Zynq using UART0" 1223 depends on ARCH_ZYNQ 1224 help 1225 Say Y here if you want the debug print routines to direct 1226 their output to UART0 on the Zynq platform. 1227 1228 config DEBUG_ZYNQ_UART1 1229 bool "Kernel low-level debugging on Xilinx Zynq using UART1" 1230 depends on ARCH_ZYNQ 1231 help 1232 Say Y here if you want the debug print routines to direct 1233 their output to UART1 on the Zynq platform. 1234 1235 If you have a ZC702 board and want early boot messages to 1236 appear on the USB serial adaptor, select this option. 1237 1238 config DEBUG_ICEDCC 1239 bool "Kernel low-level debugging via EmbeddedICE DCC channel" 1240 help 1241 Say Y here if you want the debug print routines to direct 1242 their output to the EmbeddedICE macrocell's DCC channel using 1243 co-processor 14. This is known to work on the ARM9 style ICE 1244 channel and on the XScale with the PEEDI. 1245 1246 Note that the system will appear to hang during boot if there 1247 is nothing connected to read from the DCC. 1248 1249 config DEBUG_SEMIHOSTING 1250 bool "Kernel low-level debug output via semihosting I/O" 1251 help 1252 Semihosting enables code running on an ARM target to use 1253 the I/O facilities on a host debugger/emulator through a 1254 simple SVC call. The host debugger or emulator must have 1255 semihosting enabled for the special svc call to be trapped 1256 otherwise the kernel will crash. 1257 1258 This is known to work with OpenOCD, as well as 1259 ARM's Fast Models, or any other controlling environment 1260 that implements semihosting. 1261 1262 For more details about semihosting, please see 1263 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. 1264 1265 config DEBUG_LL_UART_8250 1266 bool "Kernel low-level debugging via 8250 UART" 1267 help 1268 Say Y here if you wish the debug print routes to direct 1269 their output to an 8250 UART. You can use this option 1270 to provide the parameters for the 8250 UART rather than 1271 selecting one of the platform specific options above if 1272 you know the parameters for the port. 1273 1274 This option is preferred over the platform specific 1275 options; the platform specific options are deprecated 1276 and will be soon removed. 1277 1278 config DEBUG_LL_UART_EFM32 1279 bool "Kernel low-level debugging via efm32 UART" 1280 depends on ARCH_EFM32 1281 help 1282 Say Y here if you want the debug print routines to direct 1283 their output to an UART or USART port on efm32 based 1284 machines. Use the following addresses for DEBUG_UART_PHYS: 1285 1286 0x4000c000 | USART0 1287 0x4000c400 | USART1 1288 0x4000c800 | USART2 1289 0x4000e000 | UART0 1290 0x4000e400 | UART1 1291 1292 config DEBUG_LL_UART_PL01X 1293 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART" 1294 help 1295 Say Y here if you wish the debug print routes to direct 1296 their output to a PL01x Primecell UART. You can use 1297 this option to provide the parameters for the UART 1298 rather than selecting one of the platform specific 1299 options above if you know the parameters for the port. 1300 1301 This option is preferred over the platform specific 1302 options; the platform specific options are deprecated 1303 and will be soon removed. 1304 1305endchoice 1306 1307config DEBUG_EXYNOS_UART 1308 bool 1309 1310config DEBUG_S3C2410_UART 1311 bool 1312 select DEBUG_S3C24XX_UART 1313 1314config DEBUG_S3C24XX_UART 1315 bool 1316 1317config DEBUG_S3C64XX_UART 1318 bool 1319 1320config DEBUG_S5PV210_UART 1321 bool 1322 1323config DEBUG_OMAP2PLUS_UART 1324 bool 1325 depends on ARCH_OMAP2PLUS 1326 1327config DEBUG_IMX_UART_PORT 1328 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \ 1329 DEBUG_IMX25_UART || \ 1330 DEBUG_IMX21_IMX27_UART || \ 1331 DEBUG_IMX31_UART || \ 1332 DEBUG_IMX35_UART || \ 1333 DEBUG_IMX50_UART || \ 1334 DEBUG_IMX51_UART || \ 1335 DEBUG_IMX53_UART || \ 1336 DEBUG_IMX6Q_UART || \ 1337 DEBUG_IMX6SL_UART || \ 1338 DEBUG_IMX6SX_UART || \ 1339 DEBUG_IMX6UL_UART || \ 1340 DEBUG_IMX7D_UART 1341 default 1 1342 depends on ARCH_MXC 1343 help 1344 Choose UART port on which kernel low-level debug messages 1345 should be output. 1346 1347config DEBUG_VF_UART_PORT 1348 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART 1349 default 1 1350 range 0 3 1351 depends on SOC_VF610 1352 help 1353 Choose UART port on which kernel low-level debug messages 1354 should be output. 1355 1356config DEBUG_TEGRA_UART 1357 bool 1358 depends on ARCH_TEGRA 1359 1360config DEBUG_STI_UART 1361 bool 1362 depends on ARCH_STI 1363 1364config DEBUG_SIRFSOC_UART 1365 bool 1366 depends on ARCH_SIRF 1367 1368config DEBUG_LL_INCLUDE 1369 string 1370 default "debug/sa1100.S" if DEBUG_SA1100 1371 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250 1372 default "debug/at91.S" if DEBUG_AT91_UART 1373 default "debug/asm9260.S" if DEBUG_ASM9260_UART 1374 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2 1375 default "debug/dc21285.S" if DEBUG_DC21285_PORT 1376 default "debug/meson.S" if DEBUG_MESON_UARTAO 1377 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X 1378 default "debug/exynos.S" if DEBUG_EXYNOS_UART 1379 default "debug/efm32.S" if DEBUG_LL_UART_EFM32 1380 default "debug/icedcc.S" if DEBUG_ICEDCC 1381 default "debug/imx.S" if DEBUG_IMX1_UART || \ 1382 DEBUG_IMX25_UART || \ 1383 DEBUG_IMX21_IMX27_UART || \ 1384 DEBUG_IMX31_UART || \ 1385 DEBUG_IMX35_UART || \ 1386 DEBUG_IMX50_UART || \ 1387 DEBUG_IMX51_UART || \ 1388 DEBUG_IMX53_UART ||\ 1389 DEBUG_IMX6Q_UART || \ 1390 DEBUG_IMX6SL_UART || \ 1391 DEBUG_IMX6SX_UART || \ 1392 DEBUG_IMX6UL_UART || \ 1393 DEBUG_IMX7D_UART 1394 default "debug/ks8695.S" if DEBUG_KS8695_UART 1395 default "debug/msm.S" if DEBUG_QCOM_UARTDM 1396 default "debug/netx.S" if DEBUG_NETX_UART 1397 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART 1398 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2 1399 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0 1400 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2 1401 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0 1402 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2 1403 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0 1404 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1 1405 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4 1406 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART 1407 default "debug/s5pv210.S" if DEBUG_S5PV210_UART 1408 default "debug/sirf.S" if DEBUG_SIRFSOC_UART 1409 default "debug/sti.S" if DEBUG_STI_UART 1410 default "debug/tegra.S" if DEBUG_TEGRA_UART 1411 default "debug/ux500.S" if DEBUG_UX500_UART 1412 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT 1413 default "debug/vf.S" if DEBUG_VF_UART 1414 default "debug/vt8500.S" if DEBUG_VT8500_UART0 1415 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 1416 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART 1417 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0 1418 default "mach/debug-macro.S" 1419 1420# Compatibility options for PL01x 1421config DEBUG_UART_PL01X 1422 bool 1423 1424# Compatibility options for 8250 1425config DEBUG_UART_8250 1426 def_bool ARCH_EBSA110 || \ 1427 ARCH_IOP13XX || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || \ 1428 ARCH_RPC 1429 1430config DEBUG_UART_PHYS 1431 hex "Physical base address of debug UART" 1432 default 0x00100a00 if DEBUG_NETX_UART 1433 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0 1434 default 0x01c28000 if DEBUG_SUNXI_UART0 1435 default 0x01c28400 if DEBUG_SUNXI_UART1 1436 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1 1437 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2 1438 default 0x01f02800 if DEBUG_SUNXI_R_UART 1439 default 0x02530c00 if DEBUG_KEYSTONE_UART0 1440 default 0x02531000 if DEBUG_KEYSTONE_UART1 1441 default 0x03010fe0 if ARCH_RPC 1442 default 0x07000000 if DEBUG_SUN9I_UART0 1443 default 0x09405000 if DEBUG_ZTE_ZX 1444 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ 1445 DEBUG_VEXPRESS_UART0_CA9 1446 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT 1447 default 0x10124000 if DEBUG_RK3X_UART0 1448 default 0x10126000 if DEBUG_RK3X_UART1 1449 default 0x101f1000 if DEBUG_VERSATILE 1450 default 0x101fb000 if DEBUG_NOMADIK_UART 1451 default 0x11002000 if DEBUG_MT8127_UART0 1452 default 0x11006000 if DEBUG_MT6589_UART0 1453 default 0x11009000 if DEBUG_MT8135_UART3 1454 default 0x16000000 if DEBUG_INTEGRATOR 1455 default 0x18000300 if DEBUG_BCM_5301X 1456 default 0x18010000 if DEBUG_SIRFATLAS7_UART0 1457 default 0x18020000 if DEBUG_SIRFATLAS7_UART1 1458 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1 1459 default 0x20001000 if DEBUG_HIP01_UART 1460 default 0x20060000 if DEBUG_RK29_UART0 1461 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1462 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1463 default 0x20201000 if DEBUG_BCM2835 1464 default 0x3f201000 if DEBUG_BCM2836 1465 default 0x3e000000 if DEBUG_BCM_KONA_UART 1466 default 0x4000e400 if DEBUG_LL_UART_EFM32 1467 default 0x40081000 if DEBUG_LPC18XX_UART0 1468 default 0x40090000 if DEBUG_LPC32XX 1469 default 0x40100000 if DEBUG_PXA_UART1 1470 default 0x42000000 if DEBUG_GEMINI 1471 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1472 DEBUG_S3C2410_UART0) 1473 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1474 DEBUG_S3C2410_UART1) 1475 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1476 DEBUG_S3C2410_UART2) 1477 default 0x78000000 if DEBUG_CNS3XXX 1478 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1 1479 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 1480 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 1481 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 1482 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 1483 default 0x80010000 if DEBUG_ASM9260_UART 1484 default 0x80070000 if DEBUG_IMX23_UART 1485 default 0x80074000 if DEBUG_IMX28_UART 1486 default 0x80230000 if DEBUG_PICOXCELL_UART 1487 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX 1488 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1489 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1 1490 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX 1491 default 0xc0013000 if DEBUG_U300_UART 1492 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1493 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1494 default 0xd0000000 if DEBUG_SPEAR3XX 1495 default 0xd0012000 if DEBUG_MVEBU_UART0 1496 default 0xc81004c0 if DEBUG_MESON_UARTAO 1497 default 0xd4017000 if DEBUG_MMP_UART2 1498 default 0xd4018000 if DEBUG_MMP_UART3 1499 default 0xe0000000 if DEBUG_SPEAR13XX 1500 default 0xe4007000 if DEBUG_HIP04_UART 1501 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0 1502 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1 1503 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4 1504 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2 1505 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0 1506 default 0xe8008000 if DEBUG_R7S72100_SCIF2 1507 default 0xf0000be0 if ARCH_EBSA110 1508 default 0xf040ab00 if DEBUG_BRCMSTB_UART 1509 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE 1510 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE 1511 default 0xf7fc9000 if DEBUG_BERLIN_UART 1512 default 0xf8b00000 if DEBUG_HIX5HD2_UART 1513 default 0xf991e000 if DEBUG_QCOM_UARTDM 1514 default 0xfcb00000 if DEBUG_HI3620_UART 1515 default 0xfd883000 if DEBUG_ALPINE_UART0 1516 default 0xfe800000 if ARCH_IOP32X 1517 default 0xff690000 if DEBUG_RK32_UART2 1518 default 0xffc02000 if DEBUG_SOCFPGA_UART0 1519 default 0xffc02100 if DEBUG_SOCFPGA_UART1 1520 default 0xffd82340 if ARCH_IOP13XX 1521 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0 1522 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2 1523 default 0xfff36000 if DEBUG_HIGHBANK_UART 1524 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1525 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1526 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1527 default 0xfffe8600 if DEBUG_BCM63XX_UART 1528 default 0xfffff700 if ARCH_IOP33X 1529 depends on ARCH_EP93XX || \ 1530 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1531 DEBUG_LL_UART_EFM32 || \ 1532 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1533 DEBUG_NETX_UART || \ 1534 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \ 1535 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \ 1536 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \ 1537 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \ 1538 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \ 1539 DEBUG_S3C64XX_UART || \ 1540 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ 1541 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \ 1542 DEBUG_AT91_UART 1543 1544config DEBUG_UART_VIRT 1545 hex "Virtual base address of debug UART" 1546 default 0xe0000a00 if DEBUG_NETX_UART 1547 default 0xe0010fe0 if ARCH_RPC 1548 default 0xf0000be0 if ARCH_EBSA110 1549 default 0xf0010000 if DEBUG_ASM9260_UART 1550 default 0xf01fb000 if DEBUG_NOMADIK_UART 1551 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836 1552 default 0xf1000300 if DEBUG_BCM_5301X 1553 default 0xf1002000 if DEBUG_MT8127_UART0 1554 default 0xf1006000 if DEBUG_MT6589_UART0 1555 default 0xf1009000 if DEBUG_MT8135_UART3 1556 default 0xf11f1000 if DEBUG_VERSATILE 1557 default 0xf1600000 if DEBUG_INTEGRATOR 1558 default 0xf1c28000 if DEBUG_SUNXI_UART0 1559 default 0xf1c28400 if DEBUG_SUNXI_UART1 1560 default 0xf1f02800 if DEBUG_SUNXI_R_UART 1561 default 0xf31004c0 if DEBUG_MESON_UARTAO 1562 default 0xf4090000 if DEBUG_LPC32XX 1563 default 0xf4200000 if DEBUG_GEMINI 1564 default 0xf6200000 if DEBUG_PXA_UART1 1565 default 0xf7000000 if DEBUG_SUN9I_UART0 1566 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 1567 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1568 DEBUG_S3C2410_UART0) 1569 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 1570 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 1571 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 1572 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1573 DEBUG_S3C2410_UART1) 1574 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1575 DEBUG_S3C2410_UART2) 1576 default 0xf7fc9000 if DEBUG_BERLIN_UART 1577 default 0xf8007000 if DEBUG_HIP04_UART 1578 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 1579 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 1580 default 0xfa71e000 if DEBUG_QCOM_UARTDM 1581 default 0xfb002000 if DEBUG_CNS3XXX 1582 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT 1583 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT 1584 default 0xfc40ab00 if DEBUG_BRCMSTB_UART 1585 default 0xfc705000 if DEBUG_ZTE_ZX 1586 default 0xfcfe8600 if DEBUG_BCM63XX_UART 1587 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX 1588 default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0 1589 default 0xfd883000 if DEBUG_ALPINE_UART0 1590 default 0xfde12000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_DOVE 1591 default 0xfe012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_ORION5X 1592 default 0xfe017000 if DEBUG_MMP_UART2 1593 default 0xfe018000 if DEBUG_MMP_UART3 1594 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART 1595 default 0xfe230000 if DEBUG_PICOXCELL_UART 1596 default 0xfe300000 if DEBUG_BCM_KONA_UART 1597 default 0xfe800000 if ARCH_IOP32X 1598 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART 1599 default 0xfeb24000 if DEBUG_RK3X_UART0 1600 default 0xfeb26000 if DEBUG_RK3X_UART1 1601 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0 1602 default 0xfeb31000 if DEBUG_KEYSTONE_UART1 1603 default 0xfec02000 if DEBUG_SOCFPGA_UART0 1604 default 0xfec02100 if DEBUG_SOCFPGA_UART1 1605 default 0xfec12000 if (DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE) && ARCH_MVEBU 1606 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE 1607 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0 1608 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0 1609 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1 1610 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1 1611 default 0xfec90000 if DEBUG_RK32_UART2 1612 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1 1613 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 1614 default 0xfed60000 if DEBUG_RK29_UART0 1615 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1616 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1617 default 0xfedc0000 if DEBUG_EP93XX 1618 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1 1619 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1620 default 0xfee82340 if ARCH_IOP13XX 1621 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1622 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1623 default 0xfef36000 if DEBUG_HIGHBANK_UART 1624 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1625 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1626 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1627 default 0xfefff700 if ARCH_IOP33X 1628 default 0xff003000 if DEBUG_U300_UART 1629 default 0xffd01000 if DEBUG_HIP01_UART 1630 default DEBUG_UART_PHYS if !MMU 1631 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1632 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1633 DEBUG_NETX_UART || \ 1634 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ 1635 DEBUG_S3C64XX_UART || \ 1636 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \ 1637 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 1638 1639config DEBUG_UART_8250_SHIFT 1640 int "Register offset shift for the 8250 debug UART" 1641 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1642 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \ 1643 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3 1644 default 2 1645 1646config DEBUG_UART_8250_WORD 1647 bool "Use 32-bit accesses for 8250 UART" 1648 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1649 depends on DEBUG_UART_8250_SHIFT >= 2 1650 default y if DEBUG_PICOXCELL_UART || \ 1651 DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_UART1 || \ 1652 DEBUG_KEYSTONE_UART0 || DEBUG_KEYSTONE_UART1 || \ 1653 DEBUG_ALPINE_UART0 || \ 1654 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \ 1655 DEBUG_DAVINCI_DA8XX_UART2 || \ 1656 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \ 1657 DEBUG_BRCMSTB_UART 1658 1659config DEBUG_UART_8250_FLOW_CONTROL 1660 bool "Enable flow control for 8250 UART" 1661 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1662 default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC 1663 1664config DEBUG_UNCOMPRESS 1665 bool 1666 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1667 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ 1668 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) 1669 help 1670 This option influences the normal decompressor output for 1671 multiplatform kernels. Normally, multiplatform kernels disable 1672 decompressor output because it is not possible to know where to 1673 send the decompressor output. 1674 1675 When this option is set, the selected DEBUG_LL output method 1676 will be re-used for normal decompressor output on multiplatform 1677 kernels. 1678 1679 1680config UNCOMPRESS_INCLUDE 1681 string 1682 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ 1683 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1684 default "mach/uncompress.h" 1685 1686config EARLY_PRINTK 1687 bool "Early printk" 1688 depends on DEBUG_LL 1689 help 1690 Say Y here if you want to have an early console using the 1691 kernel low-level debugging functions. Add earlyprintk to your 1692 kernel parameters to enable this console. 1693 1694config ARM_KPROBES_TEST 1695 tristate "Kprobes test module" 1696 depends on KPROBES && MODULES 1697 help 1698 Perform tests of kprobes API and instruction set simulation. 1699 1700config PID_IN_CONTEXTIDR 1701 bool "Write the current PID to the CONTEXTIDR register" 1702 depends on CPU_COPY_V6 1703 help 1704 Enabling this option causes the kernel to write the current PID to 1705 the PROCID field of the CONTEXTIDR register, at the expense of some 1706 additional instructions during context switch. Say Y here only if you 1707 are planning to use hardware trace tools with this kernel. 1708 1709config DEBUG_SET_MODULE_RONX 1710 bool "Set loadable kernel module data as NX and text as RO" 1711 depends on MODULES && MMU 1712 ---help--- 1713 This option helps catch unintended modifications to loadable 1714 kernel module's text and read-only data. It also prevents execution 1715 of module data. Such protection may interfere with run-time code 1716 patching and dynamic kernel tracing - and they might also protect 1717 against certain classes of kernel exploits. 1718 If in doubt, say "N". 1719 1720source "drivers/hwtracing/coresight/Kconfig" 1721 1722endmenu 1723