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 18config STRICT_DEVMEM 19 bool "Filter access to /dev/mem" 20 depends on MMU 21 ---help--- 22 If this option is disabled, you allow userspace (root) access to all 23 of memory, including kernel and userspace memory. Accidental 24 access to this is obviously disastrous, but specific access can 25 be used by people debugging the kernel. 26 27 If this option is switched on, the /dev/mem file only allows 28 userspace access to memory mapped peripherals. 29 30 If in doubt, say Y. 31 32# RMK wants arm kernels compiled with frame pointers or stack unwinding. 33# If you know what you are doing and are willing to live without stack 34# traces, you can get a slightly smaller kernel by setting this option to 35# n, but then RMK will have to kill you ;). 36config FRAME_POINTER 37 bool 38 depends on !THUMB2_KERNEL 39 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER 40 help 41 If you say N here, the resulting kernel will be slightly smaller and 42 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled, 43 when a problem occurs with the kernel, the information that is 44 reported is severely limited. 45 46config ARM_UNWIND 47 bool "Enable stack unwinding support (EXPERIMENTAL)" 48 depends on AEABI 49 default y 50 help 51 This option enables stack unwinding support in the kernel 52 using the information automatically generated by the 53 compiler. The resulting kernel image is slightly bigger but 54 the performance is not affected. Currently, this feature 55 only works with EABI compilers. If unsure say Y. 56 57config OLD_MCOUNT 58 bool 59 depends on FUNCTION_TRACER && FRAME_POINTER 60 default y 61 62config DEBUG_USER 63 bool "Verbose user fault messages" 64 help 65 When a user program crashes due to an exception, the kernel can 66 print a brief message explaining what the problem was. This is 67 sometimes helpful for debugging but serves no purpose on a 68 production system. Most people should say N here. 69 70 In addition, you need to pass user_debug=N on the kernel command 71 line to enable this feature. N consists of the sum of: 72 73 1 - undefined instruction events 74 2 - system calls 75 4 - invalid data aborts 76 8 - SIGSEGV faults 77 16 - SIGBUS faults 78 79# These options are only for real kernel hackers who want to get their hands dirty. 80config DEBUG_LL 81 bool "Kernel low-level debugging functions (read help!)" 82 depends on DEBUG_KERNEL 83 help 84 Say Y here to include definitions of printascii, printch, printhex 85 in the kernel. This is helpful if you are debugging code that 86 executes before the console is initialized. 87 88 Note that selecting this option will limit the kernel to a single 89 UART definition, as specified below. Attempting to boot the kernel 90 image on a different platform *will not work*, so this option should 91 not be enabled for kernels that are intended to be portable. 92 93choice 94 prompt "Kernel low-level debugging port" 95 depends on DEBUG_LL 96 97 config DEBUG_ALPINE_UART0 98 bool "Kernel low-level debugging messages via Alpine UART0" 99 depends on ARCH_ALPINE 100 select DEBUG_UART_8250 101 help 102 Say Y here if you want kernel low-level debugging support 103 on Alpine based platforms. 104 105 config DEBUG_ASM9260_UART 106 bool "Kernel low-level debugging via asm9260 UART" 107 depends on MACH_ASM9260 108 help 109 Say Y here if you want the debug print routines to direct 110 their output to an UART or USART port on asm9260 based 111 machines. 112 113 DEBUG_UART_PHYS | DEBUG_UART_VIRT 114 115 0x80000000 | 0xf0000000 | UART0 116 0x80004000 | 0xf0004000 | UART1 117 0x80008000 | 0xf0008000 | UART2 118 0x8000c000 | 0xf000c000 | UART3 119 0x80010000 | 0xf0010000 | UART4 120 0x80014000 | 0xf0014000 | UART5 121 0x80018000 | 0xf0018000 | UART6 122 0x8001c000 | 0xf001c000 | UART7 123 0x80020000 | 0xf0020000 | UART8 124 0x80024000 | 0xf0024000 | UART9 125 126 config AT91_DEBUG_LL_DBGU0 127 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10, 9rl, 9x5, 9n12" 128 select DEBUG_AT91_UART 129 depends on ARCH_AT91 130 depends on SOC_AT91RM9200 || SOC_AT91SAM9 131 132 config AT91_DEBUG_LL_DBGU1 133 bool "Kernel low-level debugging on 9263, 9g45 and sama5d3" 134 select DEBUG_AT91_UART 135 depends on ARCH_AT91 136 depends on SOC_AT91SAM9 || SOC_SAMA5 137 138 config AT91_DEBUG_LL_DBGU2 139 bool "Kernel low-level debugging on sama5d4" 140 select DEBUG_AT91_UART 141 depends on ARCH_AT91 142 depends on SOC_SAMA5 143 144 config AT91_DEBUG_LL_DBGU3 145 bool "Kernel low-level debugging on sama5d2" 146 select DEBUG_AT91_UART 147 depends on ARCH_AT91 148 depends on SOC_SAMA5 149 150 config DEBUG_BCM2835 151 bool "Kernel low-level debugging on BCM2835 PL011 UART" 152 depends on ARCH_BCM2835 153 select DEBUG_UART_PL01X 154 155 config DEBUG_BCM_5301X 156 bool "Kernel low-level debugging on BCM5301X UART1" 157 depends on ARCH_BCM_5301X 158 select DEBUG_UART_8250 159 160 config DEBUG_BCM_KONA_UART 161 bool "Kernel low-level debugging messages via BCM KONA UART" 162 depends on ARCH_BCM_MOBILE 163 select DEBUG_UART_8250 164 help 165 Say Y here if you want kernel low-level debugging support 166 on Broadcom SoC platforms. 167 This low level debug works for Broadcom 168 mobile SoCs in the Kona family of chips (e.g. bcm28155, 169 bcm11351, etc...) 170 171 config DEBUG_BCM63XX 172 bool "Kernel low-level debugging on BCM63XX UART" 173 depends on ARCH_BCM_63XX 174 select DEBUG_UART_BCM63XX 175 176 config DEBUG_BERLIN_UART 177 bool "Marvell Berlin SoC Debug UART" 178 depends on ARCH_BERLIN 179 select DEBUG_UART_8250 180 help 181 Say Y here if you want kernel low-level debugging support 182 on Marvell Berlin SoC based platforms. 183 184 config DEBUG_BRCMSTB_UART 185 bool "Use BRCMSTB UART for low-level debug" 186 depends on ARCH_BRCMSTB 187 select DEBUG_UART_8250 188 help 189 Say Y here if you want the debug print routines to direct 190 their output to the first serial port on these devices. 191 192 If you have a Broadcom STB chip and would like early print 193 messages to appear over the UART, select this option. 194 195 config DEBUG_CLPS711X_UART1 196 bool "Kernel low-level debugging messages via UART1" 197 depends on ARCH_CLPS711X 198 help 199 Say Y here if you want the debug print routines to direct 200 their output to the first serial port on these devices. 201 202 config DEBUG_CLPS711X_UART2 203 bool "Kernel low-level debugging messages via UART2" 204 depends on ARCH_CLPS711X 205 help 206 Say Y here if you want the debug print routines to direct 207 their output to the second serial port on these devices. 208 209 config DEBUG_CNS3XXX 210 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx" 211 depends on ARCH_CNS3XXX 212 select DEBUG_UART_8250 213 help 214 Say Y here if you want the debug print routines to direct 215 their output to the CNS3xxx UART0. 216 217 config DEBUG_DAVINCI_DA8XX_UART1 218 bool "Kernel low-level debugging on DaVinci DA8XX using UART1" 219 depends on ARCH_DAVINCI_DA8XX 220 select DEBUG_UART_8250 221 help 222 Say Y here if you want the debug print routines to direct 223 their output to UART1 serial port on DaVinci DA8XX devices. 224 225 config DEBUG_DAVINCI_DA8XX_UART2 226 bool "Kernel low-level debugging on DaVinci DA8XX using UART2" 227 depends on ARCH_DAVINCI_DA8XX 228 select DEBUG_UART_8250 229 help 230 Say Y here if you want the debug print routines to direct 231 their output to UART2 serial port on DaVinci DA8XX devices. 232 233 config DEBUG_DAVINCI_DMx_UART0 234 bool "Kernel low-level debugging on DaVinci DMx using UART0" 235 depends on ARCH_DAVINCI_DMx 236 select DEBUG_UART_8250 237 help 238 Say Y here if you want the debug print routines to direct 239 their output to UART0 serial port on DaVinci DMx devices. 240 241 config DEBUG_ZYNQ_UART0 242 bool "Kernel low-level debugging on Xilinx Zynq using UART0" 243 depends on ARCH_ZYNQ 244 help 245 Say Y here if you want the debug print routines to direct 246 their output to UART0 on the Zynq platform. 247 248 config DEBUG_ZYNQ_UART1 249 bool "Kernel low-level debugging on Xilinx Zynq using UART1" 250 depends on ARCH_ZYNQ 251 help 252 Say Y here if you want the debug print routines to direct 253 their output to UART1 on the Zynq platform. 254 255 If you have a ZC702 board and want early boot messages to 256 appear on the USB serial adaptor, select this option. 257 258 config DEBUG_DC21285_PORT 259 bool "Kernel low-level debugging messages via footbridge serial port" 260 depends on FOOTBRIDGE 261 help 262 Say Y here if you want the debug print routines to direct 263 their output to the serial port in the DC21285 (Footbridge). 264 265 config DEBUG_DIGICOLOR_UA0 266 bool "Kernel low-level debugging messages via Digicolor UA0" 267 depends on ARCH_DIGICOLOR 268 help 269 Say Y here if you want the debug print routines to direct 270 their output to the UA0 serial port in the CX92755. 271 272 config DEBUG_FOOTBRIDGE_COM1 273 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" 274 depends on FOOTBRIDGE 275 help 276 Say Y here if you want the debug print routines to direct 277 their output to the 8250 at PCI COM1. 278 279 config DEBUG_HI3620_UART 280 bool "Hisilicon HI3620 Debug UART" 281 depends on ARCH_HI3xxx 282 select DEBUG_UART_PL01X 283 help 284 Say Y here if you want kernel low-level debugging support 285 on HI3620 UART. 286 287 config DEBUG_HI3716_UART 288 bool "Hisilicon Hi3716 Debug UART" 289 depends on ARCH_HI3xxx 290 select DEBUG_UART_PL01X 291 help 292 Say Y here if you want kernel low-level debugging support 293 on HI3716 UART. 294 295 config DEBUG_HIGHBANK_UART 296 bool "Kernel low-level debugging messages via Highbank UART" 297 depends on ARCH_HIGHBANK 298 select DEBUG_UART_PL01X 299 help 300 Say Y here if you want the debug print routines to direct 301 their output to the UART on Highbank based devices. 302 303 config DEBUG_HIP01_UART 304 bool "Hisilicon Hip01 Debug UART" 305 depends on ARCH_HIP01 306 select DEBUG_UART_8250 307 help 308 Say Y here if you want kernel low-level debugging support 309 on HIP01 UART. 310 311 config DEBUG_HIP04_UART 312 bool "Hisilicon HiP04 Debug UART" 313 depends on ARCH_HIP04 314 select DEBUG_UART_8250 315 help 316 Say Y here if you want kernel low-level debugging support 317 on HIP04 UART. 318 319 config DEBUG_HIX5HD2_UART 320 bool "Hisilicon Hix5hd2 Debug UART" 321 depends on ARCH_HIX5HD2 322 select DEBUG_UART_PL01X 323 help 324 Say Y here if you want kernel low-level debugging support 325 on Hix5hd2 UART. 326 327 config DEBUG_IMX1_UART 328 bool "i.MX1 Debug UART" 329 depends on SOC_IMX1 330 help 331 Say Y here if you want kernel low-level debugging support 332 on i.MX1. 333 334 config DEBUG_IMX23_UART 335 bool "i.MX23 Debug UART" 336 depends on SOC_IMX23 337 select DEBUG_UART_PL01X 338 help 339 Say Y here if you want kernel low-level debugging support 340 on i.MX23. 341 342 config DEBUG_IMX25_UART 343 bool "i.MX25 Debug UART" 344 depends on SOC_IMX25 345 help 346 Say Y here if you want kernel low-level debugging support 347 on i.MX25. 348 349 config DEBUG_IMX21_IMX27_UART 350 bool "i.MX21 and i.MX27 Debug UART" 351 depends on SOC_IMX21 || SOC_IMX27 352 help 353 Say Y here if you want kernel low-level debugging support 354 on i.MX21 or i.MX27. 355 356 config DEBUG_IMX28_UART 357 bool "i.MX28 Debug UART" 358 depends on SOC_IMX28 359 select DEBUG_UART_PL01X 360 help 361 Say Y here if you want kernel low-level debugging support 362 on i.MX28. 363 364 config DEBUG_IMX31_UART 365 bool "i.MX31 Debug UART" 366 depends on SOC_IMX31 367 help 368 Say Y here if you want kernel low-level debugging support 369 on i.MX31. 370 371 config DEBUG_IMX35_UART 372 bool "i.MX35 Debug UART" 373 depends on SOC_IMX35 374 help 375 Say Y here if you want kernel low-level debugging support 376 on i.MX35. 377 378 config DEBUG_IMX50_UART 379 bool "i.MX50 Debug UART" 380 depends on SOC_IMX50 381 help 382 Say Y here if you want kernel low-level debugging support 383 on i.MX50. 384 385 config DEBUG_IMX51_UART 386 bool "i.MX51 Debug UART" 387 depends on SOC_IMX51 388 help 389 Say Y here if you want kernel low-level debugging support 390 on i.MX51. 391 392 config DEBUG_IMX53_UART 393 bool "i.MX53 Debug UART" 394 depends on SOC_IMX53 395 help 396 Say Y here if you want kernel low-level debugging support 397 on i.MX53. 398 399 config DEBUG_IMX6Q_UART 400 bool "i.MX6Q/DL Debug UART" 401 depends on SOC_IMX6Q 402 help 403 Say Y here if you want kernel low-level debugging support 404 on i.MX6Q/DL. 405 406 config DEBUG_IMX6SL_UART 407 bool "i.MX6SL Debug UART" 408 depends on SOC_IMX6SL 409 help 410 Say Y here if you want kernel low-level debugging support 411 on i.MX6SL. 412 413 config DEBUG_IMX6SX_UART 414 bool "i.MX6SX Debug UART" 415 depends on SOC_IMX6SX 416 help 417 Say Y here if you want kernel low-level debugging support 418 on i.MX6SX. 419 420 config DEBUG_IMX6UL_UART 421 bool "i.MX6UL Debug UART" 422 depends on SOC_IMX6UL 423 help 424 Say Y here if you want kernel low-level debugging support 425 on i.MX6UL. 426 427 config DEBUG_IMX7D_UART 428 bool "i.MX7D Debug UART" 429 depends on SOC_IMX7D 430 help 431 Say Y here if you want kernel low-level debugging support 432 on i.MX7D. 433 434 config DEBUG_KEYSTONE_UART0 435 bool "Kernel low-level debugging on KEYSTONE2 using UART0" 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 UART0 serial port on KEYSTONE2 devices. 441 442 config DEBUG_KEYSTONE_UART1 443 bool "Kernel low-level debugging on KEYSTONE2 using UART1" 444 depends on ARCH_KEYSTONE 445 select DEBUG_UART_8250 446 help 447 Say Y here if you want the debug print routines to direct 448 their output to UART1 serial port on KEYSTONE2 devices. 449 450 config DEBUG_KS8695_UART 451 bool "KS8695 Debug UART" 452 depends on ARCH_KS8695 453 help 454 Say Y here if you want kernel low-level debugging support 455 on KS8695. 456 457 config DEBUG_LPC18XX_UART0 458 bool "Kernel low-level debugging via LPC18xx/43xx UART0" 459 depends on ARCH_LPC18XX 460 select DEBUG_UART_8250 461 help 462 Say Y here if you want kernel low-level debugging support 463 on NXP LPC18xx/43xx UART0. 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_QCOM_UARTDM 489 bool "Kernel low-level debugging messages via QCOM UARTDM" 490 depends on ARCH_QCOM 491 help 492 Say Y here if you want the debug print routines to direct 493 their output to the serial port on Qualcomm devices. 494 495 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT 496 APQ8064 0x16640000 0xf0040000 497 APQ8084 0xf995e000 0xfa75e000 498 MSM8X60 0x19c40000 0xf0040000 499 MSM8960 0x16440000 0xf0040000 500 MSM8974 0xf991e000 0xfa71e000 501 502 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration 503 options based on your needs. 504 505 config DEBUG_MVEBU_UART0 506 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)" 507 depends on ARCH_MVEBU 508 select DEBUG_UART_8250 509 help 510 Say Y here if you want kernel low-level debugging support 511 on MVEBU based platforms on UART0. 512 513 This option should be used with the old bootloaders 514 that left the internal registers mapped at 515 0xd0000000. As of today, this is the case on 516 platforms such as the Globalscale Mirabox or the 517 Plathome OpenBlocks AX3, when using the original 518 bootloader. 519 520 If the wrong DEBUG_MVEBU_UART* option is selected, 521 when u-boot hands over to the kernel, the system 522 silently crashes, with no serial output at all. 523 524 config DEBUG_MVEBU_UART0_ALTERNATE 525 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)" 526 depends on ARCH_MVEBU 527 select DEBUG_UART_8250 528 help 529 Say Y here if you want kernel low-level debugging support 530 on MVEBU based platforms on UART0. 531 532 This option should be used with the new bootloaders 533 that remap the internal registers at 0xf1000000. 534 535 If the wrong DEBUG_MVEBU_UART* option is selected, 536 when u-boot hands over to the kernel, the system 537 silently crashes, with no serial output at all. 538 539 config DEBUG_MVEBU_UART1_ALTERNATE 540 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)" 541 depends on ARCH_MVEBU 542 select DEBUG_UART_8250 543 help 544 Say Y here if you want kernel low-level debugging support 545 on MVEBU based platforms on UART1. 546 547 This option should be used with the new bootloaders 548 that remap the internal registers at 0xf1000000. 549 550 If the wrong DEBUG_MVEBU_UART* option is selected, 551 when u-boot hands over to the kernel, the system 552 silently crashes, with no serial output at all. 553 554 config DEBUG_VF_UART 555 bool "Vybrid UART" 556 depends on SOC_VF610 557 help 558 Say Y here if you want kernel low-level debugging support 559 on Vybrid based platforms. 560 561 config DEBUG_NETX_UART 562 bool "Kernel low-level debugging messages via NetX UART" 563 depends on ARCH_NETX 564 help 565 Say Y here if you want kernel low-level debugging support 566 on Hilscher NetX based platforms. 567 568 config DEBUG_NOMADIK_UART 569 bool "Kernel low-level debugging messages via NOMADIK UART" 570 depends on ARCH_NOMADIK 571 select DEBUG_UART_PL01X 572 help 573 Say Y here if you want kernel low-level debugging support 574 on NOMADIK based platforms. 575 576 config DEBUG_NSPIRE_CLASSIC_UART 577 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" 578 depends on ARCH_NSPIRE 579 select DEBUG_UART_8250 580 help 581 Say Y here if you want kernel low-level debugging support 582 on TI-NSPIRE classic models. 583 584 config DEBUG_NSPIRE_CX_UART 585 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" 586 depends on ARCH_NSPIRE 587 select DEBUG_UART_PL01X 588 help 589 Say Y here if you want kernel low-level debugging support 590 on TI-NSPIRE CX models. 591 592 config DEBUG_OMAP1UART1 593 bool "Kernel low-level debugging via OMAP1 UART1" 594 depends on ARCH_OMAP1 595 select DEBUG_UART_8250 596 help 597 Say Y here if you want kernel low-level debugging support 598 on OMAP1 based platforms (except OMAP730) on the UART1. 599 600 config DEBUG_OMAP1UART2 601 bool "Kernel low-level debugging via OMAP1 UART2" 602 depends on ARCH_OMAP1 603 select DEBUG_UART_8250 604 help 605 Say Y here if you want kernel low-level debugging support 606 on OMAP1 based platforms (except OMAP730) on the UART2. 607 608 config DEBUG_OMAP1UART3 609 bool "Kernel low-level debugging via OMAP1 UART3" 610 depends on ARCH_OMAP1 611 select DEBUG_UART_8250 612 help 613 Say Y here if you want kernel low-level debugging support 614 on OMAP1 based platforms (except OMAP730) on the UART3. 615 616 config DEBUG_OMAP2UART1 617 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" 618 depends on ARCH_OMAP2PLUS 619 select DEBUG_OMAP2PLUS_UART 620 help 621 This covers at least h4, 2430sdp, 3430sdp, 3630sdp, 622 omap3 torpedo and 3530 lv som. 623 624 config DEBUG_OMAP2UART2 625 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2" 626 depends on ARCH_OMAP2PLUS 627 select DEBUG_OMAP2PLUS_UART 628 629 config DEBUG_OMAP2UART3 630 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)" 631 depends on ARCH_OMAP2PLUS 632 select DEBUG_OMAP2PLUS_UART 633 634 config DEBUG_OMAP3UART3 635 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)" 636 depends on ARCH_OMAP2PLUS 637 select DEBUG_OMAP2PLUS_UART 638 help 639 This covers at least cm_t3x, beagle, crane, devkit8000, 640 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, 641 and 3517evm. 642 643 config DEBUG_OMAP4UART3 644 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" 645 depends on ARCH_OMAP2PLUS 646 select DEBUG_OMAP2PLUS_UART 647 648 config DEBUG_OMAP3UART4 649 bool "Kernel low-level debugging messages via OMAP36XX UART4" 650 depends on ARCH_OMAP2PLUS 651 select DEBUG_OMAP2PLUS_UART 652 653 config DEBUG_OMAP4UART4 654 bool "Kernel low-level debugging messages via OMAP4/5 UART4" 655 depends on ARCH_OMAP2PLUS 656 select DEBUG_OMAP2PLUS_UART 657 658 config DEBUG_OMAP7XXUART1 659 bool "Kernel low-level debugging via OMAP730 UART1" 660 depends on ARCH_OMAP730 661 select DEBUG_UART_8250 662 help 663 Say Y here if you want kernel low-level debugging support 664 on OMAP730 based platforms on the UART1. 665 666 config DEBUG_OMAP7XXUART2 667 bool "Kernel low-level debugging via OMAP730 UART2" 668 depends on ARCH_OMAP730 669 select DEBUG_UART_8250 670 help 671 Say Y here if you want kernel low-level debugging support 672 on OMAP730 based platforms on the UART2. 673 674 config DEBUG_OMAP7XXUART3 675 bool "Kernel low-level debugging via OMAP730 UART3" 676 depends on ARCH_OMAP730 677 select DEBUG_UART_8250 678 help 679 Say Y here if you want kernel low-level debugging support 680 on OMAP730 based platforms on the UART3. 681 682 config DEBUG_TI81XXUART1 683 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)" 684 depends on ARCH_OMAP2PLUS 685 select DEBUG_OMAP2PLUS_UART 686 687 config DEBUG_TI81XXUART2 688 bool "Kernel low-level debugging messages via TI81XX UART2" 689 depends on ARCH_OMAP2PLUS 690 select DEBUG_OMAP2PLUS_UART 691 692 config DEBUG_TI81XXUART3 693 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)" 694 depends on ARCH_OMAP2PLUS 695 select DEBUG_OMAP2PLUS_UART 696 697 config DEBUG_AM33XXUART1 698 bool "Kernel low-level debugging messages via AM33XX UART1" 699 depends on ARCH_OMAP2PLUS 700 select DEBUG_OMAP2PLUS_UART 701 702 config DEBUG_ZOOM_UART 703 bool "Kernel low-level debugging messages via Zoom2/3 UART" 704 depends on ARCH_OMAP2PLUS 705 select DEBUG_OMAP2PLUS_UART 706 707 config DEBUG_PICOXCELL_UART 708 depends on ARCH_PICOXCELL 709 bool "Use PicoXcell UART for low-level debug" 710 select DEBUG_UART_8250 711 help 712 Say Y here if you want kernel low-level debugging support 713 on PicoXcell based platforms. 714 715 config DEBUG_PXA_UART1 716 depends on ARCH_PXA 717 bool "Use PXA UART1 for low-level debug" 718 select DEBUG_UART_8250 719 help 720 Say Y here if you want kernel low-level debugging support 721 on PXA UART1. 722 723 config DEBUG_REALVIEW_STD_PORT 724 bool "RealView Default UART" 725 depends on ARCH_REALVIEW 726 select DEBUG_UART_PL01X 727 help 728 Say Y here if you want the debug print routines to direct 729 their output to the serial port on RealView EB, PB11MP, PBA8 730 and PBX platforms. 731 732 config DEBUG_REALVIEW_PB1176_PORT 733 bool "RealView PB1176 UART" 734 depends on MACH_REALVIEW_PB1176 735 select DEBUG_UART_PL01X 736 help 737 Say Y here if you want the debug print routines to direct 738 their output to the standard serial port on the RealView 739 PB1176 platform. 740 741 config DEBUG_RK29_UART0 742 bool "Kernel low-level debugging messages via Rockchip RK29 UART0" 743 depends on ARCH_ROCKCHIP 744 select DEBUG_UART_8250 745 help 746 Say Y here if you want kernel low-level debugging support 747 on Rockchip based platforms. 748 749 config DEBUG_RK29_UART1 750 bool "Kernel low-level debugging messages via Rockchip RK29 UART1" 751 depends on ARCH_ROCKCHIP 752 select DEBUG_UART_8250 753 help 754 Say Y here if you want kernel low-level debugging support 755 on Rockchip based platforms. 756 757 config DEBUG_RK29_UART2 758 bool "Kernel low-level debugging messages via Rockchip RK29 UART2" 759 depends on ARCH_ROCKCHIP 760 select DEBUG_UART_8250 761 help 762 Say Y here if you want kernel low-level debugging support 763 on Rockchip based platforms. 764 765 config DEBUG_RK3X_UART0 766 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0" 767 depends on ARCH_ROCKCHIP 768 select DEBUG_UART_8250 769 help 770 Say Y here if you want kernel low-level debugging support 771 on Rockchip based platforms. 772 773 config DEBUG_RK3X_UART1 774 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1" 775 depends on ARCH_ROCKCHIP 776 select DEBUG_UART_8250 777 help 778 Say Y here if you want kernel low-level debugging support 779 on Rockchip based platforms. 780 781 config DEBUG_RK3X_UART2 782 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2" 783 depends on ARCH_ROCKCHIP 784 select DEBUG_UART_8250 785 help 786 Say Y here if you want kernel low-level debugging support 787 on Rockchip based platforms. 788 789 config DEBUG_RK3X_UART3 790 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3" 791 depends on ARCH_ROCKCHIP 792 select DEBUG_UART_8250 793 help 794 Say Y here if you want kernel low-level debugging support 795 on Rockchip based platforms. 796 797 config DEBUG_RK32_UART2 798 bool "Kernel low-level debugging messages via Rockchip RK32 UART2" 799 depends on ARCH_ROCKCHIP 800 select DEBUG_UART_8250 801 help 802 Say Y here if you want kernel low-level debugging support 803 on Rockchip RK32xx based platforms. 804 805 config DEBUG_R7S72100_SCIF2 806 bool "Kernel low-level debugging messages via SCIF2 on R7S72100" 807 depends on ARCH_R7S72100 808 help 809 Say Y here if you want kernel low-level debugging support 810 via SCIF2 on Renesas RZ/A1H (R7S72100). 811 812 config DEBUG_RCAR_GEN1_SCIF0 813 bool "Kernel low-level debugging messages via SCIF0 on R8A7778" 814 depends on ARCH_R8A7778 815 help 816 Say Y here if you want kernel low-level debugging support 817 via SCIF0 on Renesas R-Car M1A (R8A7778). 818 819 config DEBUG_RCAR_GEN1_SCIF2 820 bool "Kernel low-level debugging messages via SCIF2 on R8A7779" 821 depends on ARCH_R8A7779 822 help 823 Say Y here if you want kernel low-level debugging support 824 via SCIF2 on Renesas R-Car H1 (R8A7779). 825 826 config DEBUG_RCAR_GEN2_SCIF0 827 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793" 828 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793 829 help 830 Say Y here if you want kernel low-level debugging support 831 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or 832 M2-N (R8A7793). 833 834 config DEBUG_RCAR_GEN2_SCIF2 835 bool "Kernel low-level debugging messages via SCIF2 on R8A7794" 836 depends on ARCH_R8A7794 837 help 838 Say Y here if you want kernel low-level debugging support 839 via SCIF2 on Renesas R-Car E2 (R8A7794). 840 841 config DEBUG_RMOBILE_SCIFA0 842 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4" 843 depends on ARCH_R8A73A4 844 help 845 Say Y here if you want kernel low-level debugging support 846 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4). 847 848 config DEBUG_RMOBILE_SCIFA1 849 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740" 850 depends on ARCH_R8A7740 851 help 852 Say Y here if you want kernel low-level debugging support 853 via SCIFA1 on Renesas R-Mobile A1 (R8A7740). 854 855 config DEBUG_RMOBILE_SCIFA4 856 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0" 857 depends on ARCH_SH73A0 858 help 859 Say Y here if you want kernel low-level debugging support 860 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0). 861 862 config DEBUG_S3C_UART0 863 depends on PLAT_SAMSUNG 864 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 865 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 866 select DEBUG_S5PV210_UART if ARCH_S5PV210 867 bool "Use Samsung S3C UART 0 for low-level debug" 868 help 869 Say Y here if you want the debug print routines to direct 870 their output to UART 0. The port must have been initialised 871 by the boot-loader before use. 872 873 config DEBUG_S3C_UART1 874 depends on PLAT_SAMSUNG 875 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 876 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 877 select DEBUG_S5PV210_UART if ARCH_S5PV210 878 bool "Use Samsung S3C UART 1 for low-level debug" 879 help 880 Say Y here if you want the debug print routines to direct 881 their output to UART 1. The port must have been initialised 882 by the boot-loader before use. 883 884 config DEBUG_S3C_UART2 885 depends on PLAT_SAMSUNG 886 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 887 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 888 select DEBUG_S5PV210_UART if ARCH_S5PV210 889 bool "Use Samsung S3C UART 2 for low-level debug" 890 help 891 Say Y here if you want the debug print routines to direct 892 their output to UART 2. The port must have been initialised 893 by the boot-loader before use. 894 895 config DEBUG_S3C_UART3 896 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210) 897 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 898 select DEBUG_S5PV210_UART if ARCH_S5PV210 899 bool "Use Samsung S3C UART 3 for low-level debug" 900 help 901 Say Y here if you want the debug print routines to direct 902 their output to UART 3. The port must have been initialised 903 by the boot-loader before use. 904 905 config DEBUG_S3C2410_UART0 906 depends on ARCH_S3C24XX 907 select DEBUG_S3C2410_UART 908 bool "Use S3C2410/S3C2412 UART 0 for low-level debug" 909 help 910 Say Y here if you want the debug print routines to direct 911 their output to UART 0. The port must have been initialised 912 by the boot-loader before use. 913 914 config DEBUG_S3C2410_UART1 915 depends on ARCH_S3C24XX 916 select DEBUG_S3C2410_UART 917 bool "Use S3C2410/S3C2412 UART 1 for low-level debug" 918 help 919 Say Y here if you want the debug print routines to direct 920 their output to UART 1. The port must have been initialised 921 by the boot-loader before use. 922 923 config DEBUG_S3C2410_UART2 924 depends on ARCH_S3C24XX 925 select DEBUG_S3C2410_UART 926 bool "Use S3C2410/S3C2412 UART 2 for low-level debug" 927 help 928 Say Y here if you want the debug print routines to direct 929 their output to UART 2. The port must have been initialised 930 by the boot-loader before use. 931 932 config DEBUG_SA1100 933 depends on ARCH_SA1100 934 bool "Use SA1100 UARTs for low-level debug" 935 help 936 Say Y here if you want kernel low-level debugging support 937 on SA-11x0 UART ports. The kernel will check for the first 938 enabled UART in a sequence 3-1-2. 939 940 config DEBUG_SOCFPGA_UART0 941 depends on ARCH_SOCFPGA 942 bool "Use SOCFPGA UART0 for low-level debug" 943 select DEBUG_UART_8250 944 help 945 Say Y here if you want kernel low-level debugging support 946 on SOCFPGA(Cyclone 5 and Arria 5) based platforms. 947 948 config DEBUG_SOCFPGA_UART1 949 depends on ARCH_SOCFPGA 950 bool "Use SOCFPGA UART1 for low-level debug" 951 select DEBUG_UART_8250 952 help 953 Say Y here if you want kernel low-level debugging support 954 on SOCFPGA(Arria 10) based platforms. 955 956 957 config DEBUG_SUN9I_UART0 958 bool "Kernel low-level debugging messages via sun9i UART0" 959 depends on MACH_SUN9I 960 select DEBUG_UART_8250 961 help 962 Say Y here if you want kernel low-level debugging support 963 on Allwinner A80 based platforms on the UART0. 964 965 config DEBUG_SUNXI_UART0 966 bool "Kernel low-level debugging messages via sunXi UART0" 967 depends on ARCH_SUNXI 968 select DEBUG_UART_8250 969 help 970 Say Y here if you want kernel low-level debugging support 971 on Allwinner A1X based platforms on the UART0. 972 973 config DEBUG_SUNXI_UART1 974 bool "Kernel low-level debugging messages via sunXi UART1" 975 depends on ARCH_SUNXI 976 select DEBUG_UART_8250 977 help 978 Say Y here if you want kernel low-level debugging support 979 on Allwinner A1X based platforms on the UART1. 980 981 config DEBUG_SUNXI_R_UART 982 bool "Kernel low-level debugging messages via sunXi R_UART" 983 depends on MACH_SUN6I || MACH_SUN8I 984 select DEBUG_UART_8250 985 help 986 Say Y here if you want kernel low-level debugging support 987 on Allwinner A31/A23 based platforms on the R_UART. 988 989 config TEGRA_DEBUG_UART_AUTO_ODMDATA 990 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" 991 depends on ARCH_TEGRA 992 select DEBUG_TEGRA_UART 993 help 994 Automatically determines which UART to use for low-level 995 debug based on the ODMDATA value. This value is part of 996 the BCT, and is written to the boot memory device using 997 nvflash, or other flashing tool. When bits 19:18 are 3, 998 then bits 17:15 indicate which UART to use; 0/1/2/3/4 999 are UART A/B/C/D/E. 1000 1001 config TEGRA_DEBUG_UARTA 1002 bool "Kernel low-level debugging messages via Tegra UART A" 1003 depends on ARCH_TEGRA 1004 select DEBUG_TEGRA_UART 1005 help 1006 Say Y here if you want kernel low-level debugging support 1007 on Tegra based platforms. 1008 1009 config TEGRA_DEBUG_UARTB 1010 bool "Kernel low-level debugging messages via Tegra UART B" 1011 depends on ARCH_TEGRA 1012 select DEBUG_TEGRA_UART 1013 help 1014 Say Y here if you want kernel low-level debugging support 1015 on Tegra based platforms. 1016 1017 config TEGRA_DEBUG_UARTC 1018 bool "Kernel low-level debugging messages via Tegra UART C" 1019 depends on ARCH_TEGRA 1020 select DEBUG_TEGRA_UART 1021 help 1022 Say Y here if you want kernel low-level debugging support 1023 on Tegra based platforms. 1024 1025 config TEGRA_DEBUG_UARTD 1026 bool "Kernel low-level debugging messages via Tegra UART D" 1027 depends on ARCH_TEGRA 1028 select DEBUG_TEGRA_UART 1029 help 1030 Say Y here if you want kernel low-level debugging support 1031 on Tegra based platforms. 1032 1033 config TEGRA_DEBUG_UARTE 1034 bool "Kernel low-level debugging messages via Tegra UART E" 1035 depends on ARCH_TEGRA 1036 select DEBUG_TEGRA_UART 1037 help 1038 Say Y here if you want kernel low-level debugging support 1039 on Tegra based platforms. 1040 1041 config DEBUG_SIRFPRIMA2_UART1 1042 bool "Kernel low-level debugging messages via SiRFprimaII UART1" 1043 depends on ARCH_PRIMA2 1044 select DEBUG_SIRFSOC_UART 1045 help 1046 Say Y here if you want the debug print routines to direct 1047 their output to the uart1 port on SiRFprimaII devices. 1048 1049 config DEBUG_SIRFATLAS7_UART0 1050 bool "Kernel low-level debugging messages via SiRFatlas7 UART0" 1051 depends on ARCH_ATLAS7 1052 select DEBUG_SIRFSOC_UART 1053 help 1054 Say Y here if you want the debug print routines to direct 1055 their output to the uart0 port on SiRFATLAS7 devices.The uart0 1056 is used on SiRFATLAS7 as a extra debug port.sometimes an extra 1057 debug port can be very useful. 1058 1059 config DEBUG_SIRFATLAS7_UART1 1060 bool "Kernel low-level debugging messages via SiRFatlas7 UART1" 1061 depends on ARCH_ATLAS7 1062 select DEBUG_SIRFSOC_UART 1063 help 1064 Say Y here if you want the debug print routines to direct 1065 their output to the uart1 port on SiRFATLAS7 devices. 1066 1067 config STIH41X_DEBUG_ASC2 1068 bool "Use StiH415/416 ASC2 UART for low-level debug" 1069 depends on ARCH_STI 1070 select DEBUG_STI_UART 1071 help 1072 Say Y here if you want kernel low-level debugging support 1073 on STiH415/416 based platforms like b2000, which has 1074 default UART wired up to ASC2. 1075 1076 If unsure, say N. 1077 1078 config STIH41X_DEBUG_SBC_ASC1 1079 bool "Use StiH415/416 SBC ASC1 UART for low-level debug" 1080 depends on ARCH_STI 1081 select DEBUG_STI_UART 1082 help 1083 Say Y here if you want kernel low-level debugging support 1084 on STiH415/416 based platforms like b2020. which has 1085 default UART wired up to SBC ASC1. 1086 1087 If unsure, say N. 1088 1089 config DEBUG_U300_UART 1090 bool "Kernel low-level debugging messages via U300 UART0" 1091 depends on ARCH_U300 1092 select DEBUG_UART_PL01X 1093 help 1094 Say Y here if you want the debug print routines to direct 1095 their output to the uart port on U300 devices. 1096 1097 config DEBUG_UX500_UART 1098 depends on ARCH_U8500 1099 bool "Use Ux500 UART for low-level debug" 1100 help 1101 Say Y here if you want kernel low-level debugging support 1102 on Ux500 based platforms. 1103 1104 config DEBUG_MT6589_UART0 1105 bool "Mediatek mt6589 UART0" 1106 depends on ARCH_MEDIATEK 1107 select DEBUG_UART_8250 1108 help 1109 Say Y here if you want kernel low-level debugging support 1110 for Mediatek mt6589 based platforms on UART0. 1111 1112 config DEBUG_MT8127_UART0 1113 bool "Mediatek mt8127/mt6592 UART0" 1114 depends on ARCH_MEDIATEK 1115 select DEBUG_UART_8250 1116 help 1117 Say Y here if you want kernel low-level debugging support 1118 for Mediatek mt8127 based platforms on UART0. 1119 1120 config DEBUG_MT8135_UART3 1121 bool "Mediatek mt8135 UART3" 1122 depends on ARCH_MEDIATEK 1123 select DEBUG_UART_8250 1124 help 1125 Say Y here if you want kernel low-level debugging support 1126 for Mediatek mt8135 based platforms on UART3. 1127 1128 config DEBUG_VEXPRESS_UART0_DETECT 1129 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" 1130 depends on ARCH_VEXPRESS && CPU_CP15_MMU 1131 help 1132 This option enables a simple heuristic which tries to determine 1133 the motherboard's memory map variant (original or RS1) and then 1134 choose the relevant UART0 base address. 1135 1136 Note that this will only work with standard A-class core tiles, 1137 and may fail with non-standard SMM or custom software models. 1138 1139 config DEBUG_VEXPRESS_UART0_CA9 1140 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" 1141 depends on ARCH_VEXPRESS 1142 select DEBUG_UART_PL01X 1143 help 1144 This option selects UART0 at 0x10009000. Except for custom models, 1145 this applies only to the V2P-CA9 tile. 1146 1147 config DEBUG_VEXPRESS_UART0_RS1 1148 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" 1149 depends on ARCH_VEXPRESS 1150 select DEBUG_UART_PL01X 1151 help 1152 This option selects UART0 at 0x1c090000. This applies to most 1153 of the tiles using the RS1 memory map, including all new A-class 1154 core tiles, FPGA-based SMMs and software models. 1155 1156 config DEBUG_VEXPRESS_UART0_CRX 1157 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" 1158 depends on ARCH_VEXPRESS && !MMU 1159 select DEBUG_UART_PL01X 1160 help 1161 This option selects UART0 at 0xb0090000. This is appropriate for 1162 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7 1163 1164 config DEBUG_VT8500_UART0 1165 bool "Use UART0 on VIA/Wondermedia SoCs" 1166 depends on ARCH_VT8500 1167 help 1168 This option selects UART0 on VIA/Wondermedia System-on-a-chip 1169 devices, including VT8500, WM8505, WM8650 and WM8850. 1170 1171 config DEBUG_ICEDCC 1172 bool "Kernel low-level debugging via EmbeddedICE DCC channel" 1173 help 1174 Say Y here if you want the debug print routines to direct 1175 their output to the EmbeddedICE macrocell's DCC channel using 1176 co-processor 14. This is known to work on the ARM9 style ICE 1177 channel and on the XScale with the PEEDI. 1178 1179 Note that the system will appear to hang during boot if there 1180 is nothing connected to read from the DCC. 1181 1182 config DEBUG_SEMIHOSTING 1183 bool "Kernel low-level debug output via semihosting I/O" 1184 help 1185 Semihosting enables code running on an ARM target to use 1186 the I/O facilities on a host debugger/emulator through a 1187 simple SVC call. The host debugger or emulator must have 1188 semihosting enabled for the special svc call to be trapped 1189 otherwise the kernel will crash. 1190 1191 This is known to work with OpenOCD, as well as 1192 ARM's Fast Models, or any other controlling environment 1193 that implements semihosting. 1194 1195 For more details about semihosting, please see 1196 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. 1197 1198 config DEBUG_ZTE_ZX 1199 bool "Use ZTE ZX UART" 1200 select DEBUG_UART_PL01X 1201 depends on ARCH_ZX 1202 help 1203 Say Y here if you are enabling ZTE ZX296702 SOC and need 1204 debug uart support. 1205 1206 This option is preferred over the platform specific 1207 options; the platform specific options are deprecated 1208 and will be soon removed. 1209 1210 config DEBUG_LL_UART_8250 1211 bool "Kernel low-level debugging via 8250 UART" 1212 help 1213 Say Y here if you wish the debug print routes to direct 1214 their output to an 8250 UART. You can use this option 1215 to provide the parameters for the 8250 UART rather than 1216 selecting one of the platform specific options above if 1217 you know the parameters for the port. 1218 1219 This option is preferred over the platform specific 1220 options; the platform specific options are deprecated 1221 and will be soon removed. 1222 1223 config DEBUG_LL_UART_EFM32 1224 bool "Kernel low-level debugging via efm32 UART" 1225 depends on ARCH_EFM32 1226 help 1227 Say Y here if you want the debug print routines to direct 1228 their output to an UART or USART port on efm32 based 1229 machines. Use the following addresses for DEBUG_UART_PHYS: 1230 1231 0x4000c000 | USART0 1232 0x4000c400 | USART1 1233 0x4000c800 | USART2 1234 0x4000e000 | UART0 1235 0x4000e400 | UART1 1236 1237 config DEBUG_LL_UART_PL01X 1238 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART" 1239 help 1240 Say Y here if you wish the debug print routes to direct 1241 their output to a PL01x Primecell UART. You can use 1242 this option to provide the parameters for the UART 1243 rather than selecting one of the platform specific 1244 options above if you know the parameters for the port. 1245 1246 This option is preferred over the platform specific 1247 options; the platform specific options are deprecated 1248 and will be soon removed. 1249 1250endchoice 1251 1252config DEBUG_AT91_UART 1253 bool 1254 depends on ARCH_AT91 1255 1256config DEBUG_EXYNOS_UART 1257 bool 1258 1259config DEBUG_S3C2410_UART 1260 bool 1261 select DEBUG_S3C24XX_UART 1262 1263config DEBUG_S3C24XX_UART 1264 bool 1265 1266config DEBUG_S5PV210_UART 1267 bool 1268 1269config DEBUG_OMAP2PLUS_UART 1270 bool 1271 depends on ARCH_OMAP2PLUS 1272 1273config DEBUG_IMX_UART_PORT 1274 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \ 1275 DEBUG_IMX25_UART || \ 1276 DEBUG_IMX21_IMX27_UART || \ 1277 DEBUG_IMX31_UART || \ 1278 DEBUG_IMX35_UART || \ 1279 DEBUG_IMX50_UART || \ 1280 DEBUG_IMX51_UART || \ 1281 DEBUG_IMX53_UART || \ 1282 DEBUG_IMX6Q_UART || \ 1283 DEBUG_IMX6SL_UART || \ 1284 DEBUG_IMX6SX_UART || \ 1285 DEBUG_IMX6UL_UART || \ 1286 DEBUG_IMX7D_UART 1287 default 1 1288 depends on ARCH_MXC 1289 help 1290 Choose UART port on which kernel low-level debug messages 1291 should be output. 1292 1293config DEBUG_VF_UART_PORT 1294 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART 1295 default 1 1296 range 0 3 1297 depends on SOC_VF610 1298 help 1299 Choose UART port on which kernel low-level debug messages 1300 should be output. 1301 1302config DEBUG_TEGRA_UART 1303 bool 1304 depends on ARCH_TEGRA 1305 1306config DEBUG_STI_UART 1307 bool 1308 depends on ARCH_STI 1309 1310config DEBUG_SIRFSOC_UART 1311 bool 1312 depends on ARCH_SIRF 1313 1314config DEBUG_LL_INCLUDE 1315 string 1316 default "debug/sa1100.S" if DEBUG_SA1100 1317 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250 1318 default "debug/at91.S" if DEBUG_AT91_UART 1319 default "debug/asm9260.S" if DEBUG_ASM9260_UART 1320 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2 1321 default "debug/meson.S" if DEBUG_MESON_UARTAO 1322 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X 1323 default "debug/exynos.S" if DEBUG_EXYNOS_UART 1324 default "debug/efm32.S" if DEBUG_LL_UART_EFM32 1325 default "debug/icedcc.S" if DEBUG_ICEDCC 1326 default "debug/imx.S" if DEBUG_IMX1_UART || \ 1327 DEBUG_IMX25_UART || \ 1328 DEBUG_IMX21_IMX27_UART || \ 1329 DEBUG_IMX31_UART || \ 1330 DEBUG_IMX35_UART || \ 1331 DEBUG_IMX50_UART || \ 1332 DEBUG_IMX51_UART || \ 1333 DEBUG_IMX53_UART ||\ 1334 DEBUG_IMX6Q_UART || \ 1335 DEBUG_IMX6SL_UART || \ 1336 DEBUG_IMX6SX_UART || \ 1337 DEBUG_IMX6UL_UART || \ 1338 DEBUG_IMX7D_UART 1339 default "debug/ks8695.S" if DEBUG_KS8695_UART 1340 default "debug/msm.S" if DEBUG_QCOM_UARTDM 1341 default "debug/netx.S" if DEBUG_NETX_UART 1342 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART 1343 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2 1344 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0 1345 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2 1346 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0 1347 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2 1348 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0 1349 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1 1350 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4 1351 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART 1352 default "debug/s5pv210.S" if DEBUG_S5PV210_UART 1353 default "debug/sirf.S" if DEBUG_SIRFSOC_UART 1354 default "debug/sti.S" if DEBUG_STI_UART 1355 default "debug/tegra.S" if DEBUG_TEGRA_UART 1356 default "debug/ux500.S" if DEBUG_UX500_UART 1357 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT 1358 default "debug/vf.S" if DEBUG_VF_UART 1359 default "debug/vt8500.S" if DEBUG_VT8500_UART0 1360 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 1361 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX 1362 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0 1363 default "mach/debug-macro.S" 1364 1365# Compatibility options for PL01x 1366config DEBUG_UART_PL01X 1367 bool 1368 1369# Compatibility options for 8250 1370config DEBUG_UART_8250 1371 def_bool ARCH_DOVE || ARCH_EBSA110 || \ 1372 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \ 1373 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \ 1374 ARCH_IOP33X || ARCH_IXP4XX || \ 1375 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC 1376 1377# Compatibility options for BCM63xx 1378config DEBUG_UART_BCM63XX 1379 def_bool ARCH_BCM_63XX 1380 1381config DEBUG_UART_PHYS 1382 hex "Physical base address of debug UART" 1383 default 0x00100a00 if DEBUG_NETX_UART 1384 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0 1385 default 0x01c28000 if DEBUG_SUNXI_UART0 1386 default 0x01c28400 if DEBUG_SUNXI_UART1 1387 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1 1388 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2 1389 default 0x01f02800 if DEBUG_SUNXI_R_UART 1390 default 0x02530c00 if DEBUG_KEYSTONE_UART0 1391 default 0x02531000 if DEBUG_KEYSTONE_UART1 1392 default 0x03010fe0 if ARCH_RPC 1393 default 0x07000000 if DEBUG_SUN9I_UART0 1394 default 0x09405000 if DEBUG_ZTE_ZX 1395 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ 1396 DEBUG_VEXPRESS_UART0_CA9 1397 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT 1398 default 0x10124000 if DEBUG_RK3X_UART0 1399 default 0x10126000 if DEBUG_RK3X_UART1 1400 default 0x101f1000 if ARCH_VERSATILE 1401 default 0x101fb000 if DEBUG_NOMADIK_UART 1402 default 0x11002000 if DEBUG_MT8127_UART0 1403 default 0x11006000 if DEBUG_MT6589_UART0 1404 default 0x11009000 if DEBUG_MT8135_UART3 1405 default 0x16000000 if ARCH_INTEGRATOR 1406 default 0x18000300 if DEBUG_BCM_5301X 1407 default 0x18010000 if DEBUG_SIRFATLAS7_UART0 1408 default 0x18020000 if DEBUG_SIRFATLAS7_UART1 1409 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1 1410 default 0x20001000 if DEBUG_HIP01_UART 1411 default 0x20060000 if DEBUG_RK29_UART0 1412 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1413 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1414 default 0x20201000 if DEBUG_BCM2835 1415 default 0x3e000000 if DEBUG_BCM_KONA_UART 1416 default 0x4000e400 if DEBUG_LL_UART_EFM32 1417 default 0x40081000 if DEBUG_LPC18XX_UART0 1418 default 0x40090000 if ARCH_LPC32XX 1419 default 0x40100000 if DEBUG_PXA_UART1 1420 default 0x42000000 if ARCH_GEMINI 1421 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1422 DEBUG_S3C2410_UART0) 1423 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1424 DEBUG_S3C2410_UART1) 1425 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1426 DEBUG_S3C2410_UART2) 1427 default 0x78000000 if DEBUG_CNS3XXX 1428 default 0x7c0003f8 if FOOTBRIDGE 1429 default 0x80010000 if DEBUG_ASM9260_UART 1430 default 0x80070000 if DEBUG_IMX23_UART 1431 default 0x80074000 if DEBUG_IMX28_UART 1432 default 0x80230000 if DEBUG_PICOXCELL_UART 1433 default 0x808c0000 if ARCH_EP93XX 1434 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1435 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1 1436 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX 1437 default 0xc0013000 if DEBUG_U300_UART 1438 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1439 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1440 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX 1441 default 0xd0012000 if DEBUG_MVEBU_UART0 1442 default 0xc81004c0 if DEBUG_MESON_UARTAO 1443 default 0xd4017000 if DEBUG_MMP_UART2 1444 default 0xd4018000 if DEBUG_MMP_UART3 1445 default 0xe0000000 if ARCH_SPEAR13XX 1446 default 0xe4007000 if DEBUG_HIP04_UART 1447 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0 1448 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1 1449 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4 1450 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2 1451 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0 1452 default 0xe8008000 if DEBUG_R7S72100_SCIF2 1453 default 0xf0000be0 if ARCH_EBSA110 1454 default 0xf040ab00 if DEBUG_BRCMSTB_UART 1455 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE 1456 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE 1457 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \ 1458 ARCH_ORION5X 1459 default 0xf7fc9000 if DEBUG_BERLIN_UART 1460 default 0xf8b00000 if DEBUG_HIX5HD2_UART 1461 default 0xf991e000 if DEBUG_QCOM_UARTDM 1462 default 0xfcb00000 if DEBUG_HI3620_UART 1463 default 0xfd883000 if DEBUG_ALPINE_UART0 1464 default 0xfe800000 if ARCH_IOP32X 1465 default 0xff690000 if DEBUG_RK32_UART2 1466 default 0xffc02000 if DEBUG_SOCFPGA_UART0 1467 default 0xffc02100 if DEBUG_SOCFPGA_UART1 1468 default 0xffd82340 if ARCH_IOP13XX 1469 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0 1470 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2 1471 default 0xfff36000 if DEBUG_HIGHBANK_UART 1472 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1473 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1474 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1475 default 0xfffe8600 if DEBUG_UART_BCM63XX 1476 default 0xfffff700 if ARCH_IOP33X 1477 depends on ARCH_EP93XX || \ 1478 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1479 DEBUG_LL_UART_EFM32 || \ 1480 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1481 DEBUG_NETX_UART || \ 1482 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \ 1483 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \ 1484 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \ 1485 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \ 1486 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \ 1487 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \ 1488 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 1489 1490config DEBUG_UART_VIRT 1491 hex "Virtual base address of debug UART" 1492 default 0xe0000a00 if DEBUG_NETX_UART 1493 default 0xe0010fe0 if ARCH_RPC 1494 default 0xf0000be0 if ARCH_EBSA110 1495 default 0xf0010000 if DEBUG_ASM9260_UART 1496 default 0xf01fb000 if DEBUG_NOMADIK_UART 1497 default 0xf0201000 if DEBUG_BCM2835 1498 default 0xf1000300 if DEBUG_BCM_5301X 1499 default 0xf1002000 if DEBUG_MT8127_UART0 1500 default 0xf1006000 if DEBUG_MT6589_UART0 1501 default 0xf1009000 if DEBUG_MT8135_UART3 1502 default 0xf11f1000 if ARCH_VERSATILE 1503 default 0xf1600000 if ARCH_INTEGRATOR 1504 default 0xf1c28000 if DEBUG_SUNXI_UART0 1505 default 0xf1c28400 if DEBUG_SUNXI_UART1 1506 default 0xf1f02800 if DEBUG_SUNXI_R_UART 1507 default 0xf6200000 if DEBUG_PXA_UART1 1508 default 0xf4090000 if ARCH_LPC32XX 1509 default 0xf4200000 if ARCH_GEMINI 1510 default 0xf7000000 if DEBUG_SUN9I_UART0 1511 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1512 DEBUG_S3C2410_UART0) 1513 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1514 DEBUG_S3C2410_UART1) 1515 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1516 DEBUG_S3C2410_UART2) 1517 default 0xf7fc9000 if DEBUG_BERLIN_UART 1518 default 0xf8007000 if DEBUG_HIP04_UART 1519 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 1520 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 1521 default 0xfa71e000 if DEBUG_QCOM_UARTDM 1522 default 0xfb002000 if DEBUG_CNS3XXX 1523 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT 1524 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT 1525 default 0xfc40ab00 if DEBUG_BRCMSTB_UART 1526 default 0xfc705000 if DEBUG_ZTE_ZX 1527 default 0xfcfe8600 if DEBUG_UART_BCM63XX 1528 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX 1529 default 0xfd000000 if ARCH_SPEAR13XX 1530 default 0xfd012000 if ARCH_MV78XX0 1531 default 0xfd883000 if DEBUG_ALPINE_UART0 1532 default 0xfde12000 if ARCH_DOVE 1533 default 0xfe012000 if ARCH_ORION5X 1534 default 0xf31004c0 if DEBUG_MESON_UARTAO 1535 default 0xfe017000 if DEBUG_MMP_UART2 1536 default 0xfe018000 if DEBUG_MMP_UART3 1537 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART 1538 default 0xfe230000 if DEBUG_PICOXCELL_UART 1539 default 0xfe300000 if DEBUG_BCM_KONA_UART 1540 default 0xfe800000 if ARCH_IOP32X 1541 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART 1542 default 0xfeb24000 if DEBUG_RK3X_UART0 1543 default 0xfeb26000 if DEBUG_RK3X_UART1 1544 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0 1545 default 0xfeb31000 if DEBUG_KEYSTONE_UART1 1546 default 0xfec02000 if DEBUG_SOCFPGA_UART0 1547 default 0xfec02100 if DEBUG_SOCFPGA_UART1 1548 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE 1549 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE 1550 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0 1551 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0 1552 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1 1553 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1 1554 default 0xfec90000 if DEBUG_RK32_UART2 1555 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1 1556 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 1557 default 0xfed60000 if DEBUG_RK29_UART0 1558 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1559 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1560 default 0xfedc0000 if ARCH_EP93XX 1561 default 0xfee003f8 if FOOTBRIDGE 1562 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1563 default 0xfee82340 if ARCH_IOP13XX 1564 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1565 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1566 default 0xfef36000 if DEBUG_HIGHBANK_UART 1567 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1568 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1569 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1570 default 0xfefff700 if ARCH_IOP33X 1571 default 0xff003000 if DEBUG_U300_UART 1572 default 0xffd01000 if DEBUG_HIP01_UART 1573 default DEBUG_UART_PHYS if !MMU 1574 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1575 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1576 DEBUG_NETX_UART || \ 1577 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ 1578 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \ 1579 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 1580 1581config DEBUG_UART_8250_SHIFT 1582 int "Register offset shift for the 8250 debug UART" 1583 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1584 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X || \ 1585 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3 1586 default 2 1587 1588config DEBUG_UART_8250_WORD 1589 bool "Use 32-bit accesses for 8250 UART" 1590 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1591 depends on DEBUG_UART_8250_SHIFT >= 2 1592 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART0 || \ 1593 DEBUG_SOCFPGA_UART1 || ARCH_KEYSTONE || \ 1594 DEBUG_ALPINE_UART0 || \ 1595 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \ 1596 DEBUG_DAVINCI_DA8XX_UART2 || \ 1597 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \ 1598 DEBUG_BRCMSTB_UART 1599 1600config DEBUG_UART_8250_FLOW_CONTROL 1601 bool "Enable flow control for 8250 UART" 1602 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1603 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC 1604 1605config DEBUG_UNCOMPRESS 1606 bool 1607 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1608 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ 1609 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) 1610 help 1611 This option influences the normal decompressor output for 1612 multiplatform kernels. Normally, multiplatform kernels disable 1613 decompressor output because it is not possible to know where to 1614 send the decompressor output. 1615 1616 When this option is set, the selected DEBUG_LL output method 1617 will be re-used for normal decompressor output on multiplatform 1618 kernels. 1619 1620 1621config UNCOMPRESS_INCLUDE 1622 string 1623 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ 1624 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M || \ 1625 ARCH_SHMOBILE_LEGACY 1626 default "mach/uncompress.h" 1627 1628config EARLY_PRINTK 1629 bool "Early printk" 1630 depends on DEBUG_LL 1631 help 1632 Say Y here if you want to have an early console using the 1633 kernel low-level debugging functions. Add earlyprintk to your 1634 kernel parameters to enable this console. 1635 1636config ARM_KPROBES_TEST 1637 tristate "Kprobes test module" 1638 depends on KPROBES && MODULES 1639 help 1640 Perform tests of kprobes API and instruction set simulation. 1641 1642config PID_IN_CONTEXTIDR 1643 bool "Write the current PID to the CONTEXTIDR register" 1644 depends on CPU_COPY_V6 1645 help 1646 Enabling this option causes the kernel to write the current PID to 1647 the PROCID field of the CONTEXTIDR register, at the expense of some 1648 additional instructions during context switch. Say Y here only if you 1649 are planning to use hardware trace tools with this kernel. 1650 1651config DEBUG_SET_MODULE_RONX 1652 bool "Set loadable kernel module data as NX and text as RO" 1653 depends on MODULES && MMU 1654 ---help--- 1655 This option helps catch unintended modifications to loadable 1656 kernel module's text and read-only data. It also prevents execution 1657 of module data. Such protection may interfere with run-time code 1658 patching and dynamic kernel tracing - and they might also protect 1659 against certain classes of kernel exploits. 1660 If in doubt, say "N". 1661 1662source "drivers/hwtracing/coresight/Kconfig" 1663 1664endmenu 1665