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 DEBUG_AT91_UART 127 bool "Kernel low-level debugging on Atmel SoCs" 128 depends on ARCH_AT91 129 help 130 Say Y here if you want the debug print routines to direct 131 their output to the serial port on atmel devices. 132 133 SOC DEBUG_UART_PHYS DEBUG_UART_VIRT PORT 134 rm9200, 9260/9g20, 0xfffff200 0xfefff200 DBGU 135 9261/9g10, 9rl 136 9263, 9g45, sama5d3 0xffffee00 0xfeffee00 DBGU 137 sama5d4 0xfc00c000 0xfb00c000 USART3 138 sama5d4 0xfc069000 0xfb069000 DBGU 139 sama5d2 0xf8020000 0xf7020000 UART1 140 141 Please adjust DEBUG_UART_PHYS configuration options based on 142 your needs. 143 144 config DEBUG_BCM2835 145 bool "Kernel low-level debugging on BCM2835 PL011 UART" 146 depends on ARCH_BCM2835 147 select DEBUG_UART_PL01X 148 149 config DEBUG_BCM_5301X 150 bool "Kernel low-level debugging on BCM5301X UART1" 151 depends on ARCH_BCM_5301X 152 select DEBUG_UART_8250 153 154 config DEBUG_BCM_KONA_UART 155 bool "Kernel low-level debugging messages via BCM KONA UART" 156 depends on ARCH_BCM_MOBILE 157 select DEBUG_UART_8250 158 help 159 Say Y here if you want kernel low-level debugging support 160 on Broadcom SoC platforms. 161 This low level debug works for Broadcom 162 mobile SoCs in the Kona family of chips (e.g. bcm28155, 163 bcm11351, etc...) 164 165 config DEBUG_BCM63XX 166 bool "Kernel low-level debugging on BCM63XX UART" 167 depends on ARCH_BCM_63XX 168 select DEBUG_UART_BCM63XX 169 170 config DEBUG_BERLIN_UART 171 bool "Marvell Berlin SoC Debug UART" 172 depends on ARCH_BERLIN 173 select DEBUG_UART_8250 174 help 175 Say Y here if you want kernel low-level debugging support 176 on Marvell Berlin SoC based platforms. 177 178 config DEBUG_BRCMSTB_UART 179 bool "Use BRCMSTB UART for low-level debug" 180 depends on ARCH_BRCMSTB 181 select DEBUG_UART_8250 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 If you have a Broadcom STB chip and would like early print 187 messages to appear over the UART, select this option. 188 189 config DEBUG_CLPS711X_UART1 190 bool "Kernel low-level debugging messages via UART1" 191 depends on ARCH_CLPS711X 192 help 193 Say Y here if you want the debug print routines to direct 194 their output to the first serial port on these devices. 195 196 config DEBUG_CLPS711X_UART2 197 bool "Kernel low-level debugging messages via UART2" 198 depends on ARCH_CLPS711X 199 help 200 Say Y here if you want the debug print routines to direct 201 their output to the second serial port on these devices. 202 203 config DEBUG_CNS3XXX 204 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx" 205 depends on ARCH_CNS3XXX 206 select DEBUG_UART_8250 207 help 208 Say Y here if you want the debug print routines to direct 209 their output to the CNS3xxx UART0. 210 211 config DEBUG_DAVINCI_DA8XX_UART1 212 bool "Kernel low-level debugging on DaVinci DA8XX using UART1" 213 depends on ARCH_DAVINCI_DA8XX 214 select DEBUG_UART_8250 215 help 216 Say Y here if you want the debug print routines to direct 217 their output to UART1 serial port on DaVinci DA8XX devices. 218 219 config DEBUG_DAVINCI_DA8XX_UART2 220 bool "Kernel low-level debugging on DaVinci DA8XX using UART2" 221 depends on ARCH_DAVINCI_DA8XX 222 select DEBUG_UART_8250 223 help 224 Say Y here if you want the debug print routines to direct 225 their output to UART2 serial port on DaVinci DA8XX devices. 226 227 config DEBUG_DAVINCI_DMx_UART0 228 bool "Kernel low-level debugging on DaVinci DMx using UART0" 229 depends on ARCH_DAVINCI_DMx 230 select DEBUG_UART_8250 231 help 232 Say Y here if you want the debug print routines to direct 233 their output to UART0 serial port on DaVinci DMx devices. 234 235 config DEBUG_ZYNQ_UART0 236 bool "Kernel low-level debugging on Xilinx Zynq using UART0" 237 depends on ARCH_ZYNQ 238 help 239 Say Y here if you want the debug print routines to direct 240 their output to UART0 on the Zynq platform. 241 242 config DEBUG_ZYNQ_UART1 243 bool "Kernel low-level debugging on Xilinx Zynq using UART1" 244 depends on ARCH_ZYNQ 245 help 246 Say Y here if you want the debug print routines to direct 247 their output to UART1 on the Zynq platform. 248 249 If you have a ZC702 board and want early boot messages to 250 appear on the USB serial adaptor, select this option. 251 252 config DEBUG_DC21285_PORT 253 bool "Kernel low-level debugging messages via footbridge serial port" 254 depends on FOOTBRIDGE 255 help 256 Say Y here if you want the debug print routines to direct 257 their output to the serial port in the DC21285 (Footbridge). 258 259 config DEBUG_DIGICOLOR_UA0 260 bool "Kernel low-level debugging messages via Digicolor UA0" 261 depends on ARCH_DIGICOLOR 262 help 263 Say Y here if you want the debug print routines to direct 264 their output to the UA0 serial port in the CX92755. 265 266 config DEBUG_FOOTBRIDGE_COM1 267 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" 268 depends on FOOTBRIDGE 269 help 270 Say Y here if you want the debug print routines to direct 271 their output to the 8250 at PCI COM1. 272 273 config DEBUG_HI3620_UART 274 bool "Hisilicon HI3620 Debug UART" 275 depends on ARCH_HI3xxx 276 select DEBUG_UART_PL01X 277 help 278 Say Y here if you want kernel low-level debugging support 279 on HI3620 UART. 280 281 config DEBUG_HI3716_UART 282 bool "Hisilicon Hi3716 Debug UART" 283 depends on ARCH_HI3xxx 284 select DEBUG_UART_PL01X 285 help 286 Say Y here if you want kernel low-level debugging support 287 on HI3716 UART. 288 289 config DEBUG_HIGHBANK_UART 290 bool "Kernel low-level debugging messages via Highbank UART" 291 depends on ARCH_HIGHBANK 292 select DEBUG_UART_PL01X 293 help 294 Say Y here if you want the debug print routines to direct 295 their output to the UART on Highbank based devices. 296 297 config DEBUG_HIP01_UART 298 bool "Hisilicon Hip01 Debug UART" 299 depends on ARCH_HIP01 300 select DEBUG_UART_8250 301 help 302 Say Y here if you want kernel low-level debugging support 303 on HIP01 UART. 304 305 config DEBUG_HIP04_UART 306 bool "Hisilicon HiP04 Debug UART" 307 depends on ARCH_HIP04 308 select DEBUG_UART_8250 309 help 310 Say Y here if you want kernel low-level debugging support 311 on HIP04 UART. 312 313 config DEBUG_HIX5HD2_UART 314 bool "Hisilicon Hix5hd2 Debug UART" 315 depends on ARCH_HIX5HD2 316 select DEBUG_UART_PL01X 317 help 318 Say Y here if you want kernel low-level debugging support 319 on Hix5hd2 UART. 320 321 config DEBUG_IMX1_UART 322 bool "i.MX1 Debug UART" 323 depends on SOC_IMX1 324 help 325 Say Y here if you want kernel low-level debugging support 326 on i.MX1. 327 328 config DEBUG_IMX23_UART 329 bool "i.MX23 Debug UART" 330 depends on SOC_IMX23 331 select DEBUG_UART_PL01X 332 help 333 Say Y here if you want kernel low-level debugging support 334 on i.MX23. 335 336 config DEBUG_IMX25_UART 337 bool "i.MX25 Debug UART" 338 depends on SOC_IMX25 339 help 340 Say Y here if you want kernel low-level debugging support 341 on i.MX25. 342 343 config DEBUG_IMX21_IMX27_UART 344 bool "i.MX21 and i.MX27 Debug UART" 345 depends on SOC_IMX21 || SOC_IMX27 346 help 347 Say Y here if you want kernel low-level debugging support 348 on i.MX21 or i.MX27. 349 350 config DEBUG_IMX28_UART 351 bool "i.MX28 Debug UART" 352 depends on SOC_IMX28 353 select DEBUG_UART_PL01X 354 help 355 Say Y here if you want kernel low-level debugging support 356 on i.MX28. 357 358 config DEBUG_IMX31_UART 359 bool "i.MX31 Debug UART" 360 depends on SOC_IMX31 361 help 362 Say Y here if you want kernel low-level debugging support 363 on i.MX31. 364 365 config DEBUG_IMX35_UART 366 bool "i.MX35 Debug UART" 367 depends on SOC_IMX35 368 help 369 Say Y here if you want kernel low-level debugging support 370 on i.MX35. 371 372 config DEBUG_IMX50_UART 373 bool "i.MX50 Debug UART" 374 depends on SOC_IMX50 375 help 376 Say Y here if you want kernel low-level debugging support 377 on i.MX50. 378 379 config DEBUG_IMX51_UART 380 bool "i.MX51 Debug UART" 381 depends on SOC_IMX51 382 help 383 Say Y here if you want kernel low-level debugging support 384 on i.MX51. 385 386 config DEBUG_IMX53_UART 387 bool "i.MX53 Debug UART" 388 depends on SOC_IMX53 389 help 390 Say Y here if you want kernel low-level debugging support 391 on i.MX53. 392 393 config DEBUG_IMX6Q_UART 394 bool "i.MX6Q/DL Debug UART" 395 depends on SOC_IMX6Q 396 help 397 Say Y here if you want kernel low-level debugging support 398 on i.MX6Q/DL. 399 400 config DEBUG_IMX6SL_UART 401 bool "i.MX6SL Debug UART" 402 depends on SOC_IMX6SL 403 help 404 Say Y here if you want kernel low-level debugging support 405 on i.MX6SL. 406 407 config DEBUG_IMX6SX_UART 408 bool "i.MX6SX Debug UART" 409 depends on SOC_IMX6SX 410 help 411 Say Y here if you want kernel low-level debugging support 412 on i.MX6SX. 413 414 config DEBUG_IMX6UL_UART 415 bool "i.MX6UL Debug UART" 416 depends on SOC_IMX6UL 417 help 418 Say Y here if you want kernel low-level debugging support 419 on i.MX6UL. 420 421 config DEBUG_IMX7D_UART 422 bool "i.MX7D Debug UART" 423 depends on SOC_IMX7D 424 help 425 Say Y here if you want kernel low-level debugging support 426 on i.MX7D. 427 428 config DEBUG_KEYSTONE_UART0 429 bool "Kernel low-level debugging on KEYSTONE2 using UART0" 430 depends on ARCH_KEYSTONE 431 select DEBUG_UART_8250 432 help 433 Say Y here if you want the debug print routines to direct 434 their output to UART0 serial port on KEYSTONE2 devices. 435 436 config DEBUG_KEYSTONE_UART1 437 bool "Kernel low-level debugging on KEYSTONE2 using UART1" 438 depends on ARCH_KEYSTONE 439 select DEBUG_UART_8250 440 help 441 Say Y here if you want the debug print routines to direct 442 their output to UART1 serial port on KEYSTONE2 devices. 443 444 config DEBUG_KS8695_UART 445 bool "KS8695 Debug UART" 446 depends on ARCH_KS8695 447 help 448 Say Y here if you want kernel low-level debugging support 449 on KS8695. 450 451 config DEBUG_LPC18XX_UART0 452 bool "Kernel low-level debugging via LPC18xx/43xx UART0" 453 depends on ARCH_LPC18XX 454 select DEBUG_UART_8250 455 help 456 Say Y here if you want kernel low-level debugging support 457 on NXP LPC18xx/43xx UART0. 458 459 config DEBUG_MESON_UARTAO 460 bool "Kernel low-level debugging via Meson6 UARTAO" 461 depends on ARCH_MESON 462 help 463 Say Y here if you want kernel low-lever debugging support 464 on Amlogic Meson6 based platforms on the UARTAO. 465 466 config DEBUG_MMP_UART2 467 bool "Kernel low-level debugging message via MMP UART2" 468 depends on ARCH_MMP 469 select DEBUG_UART_8250 470 help 471 Say Y here if you want kernel low-level debugging support 472 on MMP UART2. 473 474 config DEBUG_MMP_UART3 475 bool "Kernel low-level debugging message via MMP UART3" 476 depends on ARCH_MMP 477 select DEBUG_UART_8250 478 help 479 Say Y here if you want kernel low-level debugging support 480 on MMP UART3. 481 482 config DEBUG_QCOM_UARTDM 483 bool "Kernel low-level debugging messages via QCOM UARTDM" 484 depends on ARCH_QCOM 485 help 486 Say Y here if you want the debug print routines to direct 487 their output to the serial port on Qualcomm devices. 488 489 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT 490 APQ8064 0x16640000 0xf0040000 491 APQ8084 0xf995e000 0xfa75e000 492 MSM8X60 0x19c40000 0xf0040000 493 MSM8960 0x16440000 0xf0040000 494 MSM8974 0xf991e000 0xfa71e000 495 496 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration 497 options based on your needs. 498 499 config DEBUG_MVEBU_UART0 500 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)" 501 depends on ARCH_MVEBU 502 select DEBUG_UART_8250 503 help 504 Say Y here if you want kernel low-level debugging support 505 on MVEBU based platforms on UART0. 506 507 This option should be used with the old bootloaders 508 that left the internal registers mapped at 509 0xd0000000. As of today, this is the case on 510 platforms such as the Globalscale Mirabox or the 511 Plathome OpenBlocks AX3, when using the original 512 bootloader. 513 514 If the wrong DEBUG_MVEBU_UART* option is selected, 515 when u-boot hands over to the kernel, the system 516 silently crashes, with no serial output at all. 517 518 config DEBUG_MVEBU_UART0_ALTERNATE 519 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)" 520 depends on ARCH_MVEBU 521 select DEBUG_UART_8250 522 help 523 Say Y here if you want kernel low-level debugging support 524 on MVEBU based platforms on UART0. 525 526 This option should be used with the new bootloaders 527 that remap the internal registers at 0xf1000000. 528 529 If the wrong DEBUG_MVEBU_UART* option is selected, 530 when u-boot hands over to the kernel, the system 531 silently crashes, with no serial output at all. 532 533 config DEBUG_MVEBU_UART1_ALTERNATE 534 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)" 535 depends on ARCH_MVEBU 536 select DEBUG_UART_8250 537 help 538 Say Y here if you want kernel low-level debugging support 539 on MVEBU based platforms on UART1. 540 541 This option should be used with the new bootloaders 542 that remap the internal registers at 0xf1000000. 543 544 If the wrong DEBUG_MVEBU_UART* option is selected, 545 when u-boot hands over to the kernel, the system 546 silently crashes, with no serial output at all. 547 548 config DEBUG_VF_UART 549 bool "Vybrid UART" 550 depends on SOC_VF610 551 help 552 Say Y here if you want kernel low-level debugging support 553 on Vybrid based platforms. 554 555 config DEBUG_NETX_UART 556 bool "Kernel low-level debugging messages via NetX UART" 557 depends on ARCH_NETX 558 help 559 Say Y here if you want kernel low-level debugging support 560 on Hilscher NetX based platforms. 561 562 config DEBUG_NOMADIK_UART 563 bool "Kernel low-level debugging messages via NOMADIK UART" 564 depends on ARCH_NOMADIK 565 select DEBUG_UART_PL01X 566 help 567 Say Y here if you want kernel low-level debugging support 568 on NOMADIK based platforms. 569 570 config DEBUG_NSPIRE_CLASSIC_UART 571 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" 572 depends on ARCH_NSPIRE 573 select DEBUG_UART_8250 574 help 575 Say Y here if you want kernel low-level debugging support 576 on TI-NSPIRE classic models. 577 578 config DEBUG_NSPIRE_CX_UART 579 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" 580 depends on ARCH_NSPIRE 581 select DEBUG_UART_PL01X 582 help 583 Say Y here if you want kernel low-level debugging support 584 on TI-NSPIRE CX models. 585 586 config DEBUG_OMAP1UART1 587 bool "Kernel low-level debugging via OMAP1 UART1" 588 depends on ARCH_OMAP1 589 select DEBUG_UART_8250 590 help 591 Say Y here if you want kernel low-level debugging support 592 on OMAP1 based platforms (except OMAP730) on the UART1. 593 594 config DEBUG_OMAP1UART2 595 bool "Kernel low-level debugging via OMAP1 UART2" 596 depends on ARCH_OMAP1 597 select DEBUG_UART_8250 598 help 599 Say Y here if you want kernel low-level debugging support 600 on OMAP1 based platforms (except OMAP730) on the UART2. 601 602 config DEBUG_OMAP1UART3 603 bool "Kernel low-level debugging via OMAP1 UART3" 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 UART3. 609 610 config DEBUG_OMAP2UART1 611 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" 612 depends on ARCH_OMAP2PLUS 613 select DEBUG_OMAP2PLUS_UART 614 help 615 This covers at least h4, 2430sdp, 3430sdp, 3630sdp, 616 omap3 torpedo and 3530 lv som. 617 618 config DEBUG_OMAP2UART2 619 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2" 620 depends on ARCH_OMAP2PLUS 621 select DEBUG_OMAP2PLUS_UART 622 623 config DEBUG_OMAP2UART3 624 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)" 625 depends on ARCH_OMAP2PLUS 626 select DEBUG_OMAP2PLUS_UART 627 628 config DEBUG_OMAP3UART3 629 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)" 630 depends on ARCH_OMAP2PLUS 631 select DEBUG_OMAP2PLUS_UART 632 help 633 This covers at least cm_t3x, beagle, crane, devkit8000, 634 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, 635 and 3517evm. 636 637 config DEBUG_OMAP4UART3 638 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" 639 depends on ARCH_OMAP2PLUS 640 select DEBUG_OMAP2PLUS_UART 641 642 config DEBUG_OMAP3UART4 643 bool "Kernel low-level debugging messages via OMAP36XX UART4" 644 depends on ARCH_OMAP2PLUS 645 select DEBUG_OMAP2PLUS_UART 646 647 config DEBUG_OMAP4UART4 648 bool "Kernel low-level debugging messages via OMAP4/5 UART4" 649 depends on ARCH_OMAP2PLUS 650 select DEBUG_OMAP2PLUS_UART 651 652 config DEBUG_OMAP7XXUART1 653 bool "Kernel low-level debugging via OMAP730 UART1" 654 depends on ARCH_OMAP730 655 select DEBUG_UART_8250 656 help 657 Say Y here if you want kernel low-level debugging support 658 on OMAP730 based platforms on the UART1. 659 660 config DEBUG_OMAP7XXUART2 661 bool "Kernel low-level debugging via OMAP730 UART2" 662 depends on ARCH_OMAP730 663 select DEBUG_UART_8250 664 help 665 Say Y here if you want kernel low-level debugging support 666 on OMAP730 based platforms on the UART2. 667 668 config DEBUG_OMAP7XXUART3 669 bool "Kernel low-level debugging via OMAP730 UART3" 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 UART3. 675 676 config DEBUG_TI81XXUART1 677 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)" 678 depends on ARCH_OMAP2PLUS 679 select DEBUG_OMAP2PLUS_UART 680 681 config DEBUG_TI81XXUART2 682 bool "Kernel low-level debugging messages via TI81XX UART2" 683 depends on ARCH_OMAP2PLUS 684 select DEBUG_OMAP2PLUS_UART 685 686 config DEBUG_TI81XXUART3 687 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)" 688 depends on ARCH_OMAP2PLUS 689 select DEBUG_OMAP2PLUS_UART 690 691 config DEBUG_AM33XXUART1 692 bool "Kernel low-level debugging messages via AM33XX UART1" 693 depends on ARCH_OMAP2PLUS 694 select DEBUG_OMAP2PLUS_UART 695 696 config DEBUG_ZOOM_UART 697 bool "Kernel low-level debugging messages via Zoom2/3 UART" 698 depends on ARCH_OMAP2PLUS 699 select DEBUG_OMAP2PLUS_UART 700 701 config DEBUG_PICOXCELL_UART 702 depends on ARCH_PICOXCELL 703 bool "Use PicoXcell UART for low-level debug" 704 select DEBUG_UART_8250 705 help 706 Say Y here if you want kernel low-level debugging support 707 on PicoXcell based platforms. 708 709 config DEBUG_PXA_UART1 710 depends on ARCH_PXA 711 bool "Use PXA UART1 for low-level debug" 712 select DEBUG_UART_8250 713 help 714 Say Y here if you want kernel low-level debugging support 715 on PXA UART1. 716 717 config DEBUG_REALVIEW_STD_PORT 718 bool "RealView Default UART" 719 depends on ARCH_REALVIEW 720 select DEBUG_UART_PL01X 721 help 722 Say Y here if you want the debug print routines to direct 723 their output to the serial port on RealView EB, PB11MP, PBA8 724 and PBX platforms. 725 726 config DEBUG_REALVIEW_PB1176_PORT 727 bool "RealView PB1176 UART" 728 depends on MACH_REALVIEW_PB1176 729 select DEBUG_UART_PL01X 730 help 731 Say Y here if you want the debug print routines to direct 732 their output to the standard serial port on the RealView 733 PB1176 platform. 734 735 config DEBUG_RK29_UART0 736 bool "Kernel low-level debugging messages via Rockchip RK29 UART0" 737 depends on ARCH_ROCKCHIP 738 select DEBUG_UART_8250 739 help 740 Say Y here if you want kernel low-level debugging support 741 on Rockchip based platforms. 742 743 config DEBUG_RK29_UART1 744 bool "Kernel low-level debugging messages via Rockchip RK29 UART1" 745 depends on ARCH_ROCKCHIP 746 select DEBUG_UART_8250 747 help 748 Say Y here if you want kernel low-level debugging support 749 on Rockchip based platforms. 750 751 config DEBUG_RK29_UART2 752 bool "Kernel low-level debugging messages via Rockchip RK29 UART2" 753 depends on ARCH_ROCKCHIP 754 select DEBUG_UART_8250 755 help 756 Say Y here if you want kernel low-level debugging support 757 on Rockchip based platforms. 758 759 config DEBUG_RK3X_UART0 760 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0" 761 depends on ARCH_ROCKCHIP 762 select DEBUG_UART_8250 763 help 764 Say Y here if you want kernel low-level debugging support 765 on Rockchip based platforms. 766 767 config DEBUG_RK3X_UART1 768 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1" 769 depends on ARCH_ROCKCHIP 770 select DEBUG_UART_8250 771 help 772 Say Y here if you want kernel low-level debugging support 773 on Rockchip based platforms. 774 775 config DEBUG_RK3X_UART2 776 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2" 777 depends on ARCH_ROCKCHIP 778 select DEBUG_UART_8250 779 help 780 Say Y here if you want kernel low-level debugging support 781 on Rockchip based platforms. 782 783 config DEBUG_RK3X_UART3 784 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3" 785 depends on ARCH_ROCKCHIP 786 select DEBUG_UART_8250 787 help 788 Say Y here if you want kernel low-level debugging support 789 on Rockchip based platforms. 790 791 config DEBUG_RK32_UART2 792 bool "Kernel low-level debugging messages via Rockchip RK32 UART2" 793 depends on ARCH_ROCKCHIP 794 select DEBUG_UART_8250 795 help 796 Say Y here if you want kernel low-level debugging support 797 on Rockchip RK32xx based platforms. 798 799 config DEBUG_R7S72100_SCIF2 800 bool "Kernel low-level debugging messages via SCIF2 on R7S72100" 801 depends on ARCH_R7S72100 802 help 803 Say Y here if you want kernel low-level debugging support 804 via SCIF2 on Renesas RZ/A1H (R7S72100). 805 806 config DEBUG_RCAR_GEN1_SCIF0 807 bool "Kernel low-level debugging messages via SCIF0 on R8A7778" 808 depends on ARCH_R8A7778 809 help 810 Say Y here if you want kernel low-level debugging support 811 via SCIF0 on Renesas R-Car M1A (R8A7778). 812 813 config DEBUG_RCAR_GEN1_SCIF2 814 bool "Kernel low-level debugging messages via SCIF2 on R8A7779" 815 depends on ARCH_R8A7779 816 help 817 Say Y here if you want kernel low-level debugging support 818 via SCIF2 on Renesas R-Car H1 (R8A7779). 819 820 config DEBUG_RCAR_GEN2_SCIF0 821 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793" 822 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793 823 help 824 Say Y here if you want kernel low-level debugging support 825 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or 826 M2-N (R8A7793). 827 828 config DEBUG_RCAR_GEN2_SCIF2 829 bool "Kernel low-level debugging messages via SCIF2 on R8A7794" 830 depends on ARCH_R8A7794 831 help 832 Say Y here if you want kernel low-level debugging support 833 via SCIF2 on Renesas R-Car E2 (R8A7794). 834 835 config DEBUG_RMOBILE_SCIFA0 836 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4" 837 depends on ARCH_R8A73A4 838 help 839 Say Y here if you want kernel low-level debugging support 840 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4). 841 842 config DEBUG_RMOBILE_SCIFA1 843 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740" 844 depends on ARCH_R8A7740 845 help 846 Say Y here if you want kernel low-level debugging support 847 via SCIFA1 on Renesas R-Mobile A1 (R8A7740). 848 849 config DEBUG_RMOBILE_SCIFA4 850 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0" 851 depends on ARCH_SH73A0 852 help 853 Say Y here if you want kernel low-level debugging support 854 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0). 855 856 config DEBUG_S3C_UART0 857 depends on PLAT_SAMSUNG 858 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 859 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 860 select DEBUG_S5PV210_UART if ARCH_S5PV210 861 bool "Use Samsung S3C UART 0 for low-level debug" 862 help 863 Say Y here if you want the debug print routines to direct 864 their output to UART 0. The port must have been initialised 865 by the boot-loader before use. 866 867 config DEBUG_S3C_UART1 868 depends on PLAT_SAMSUNG 869 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 870 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 871 select DEBUG_S5PV210_UART if ARCH_S5PV210 872 bool "Use Samsung S3C UART 1 for low-level debug" 873 help 874 Say Y here if you want the debug print routines to direct 875 their output to UART 1. The port must have been initialised 876 by the boot-loader before use. 877 878 config DEBUG_S3C_UART2 879 depends on PLAT_SAMSUNG 880 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 881 select DEBUG_S3C24XX_UART if ARCH_S3C24XX 882 select DEBUG_S5PV210_UART if ARCH_S5PV210 883 bool "Use Samsung S3C UART 2 for low-level debug" 884 help 885 Say Y here if you want the debug print routines to direct 886 their output to UART 2. The port must have been initialised 887 by the boot-loader before use. 888 889 config DEBUG_S3C_UART3 890 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210) 891 select DEBUG_EXYNOS_UART if ARCH_EXYNOS 892 select DEBUG_S5PV210_UART if ARCH_S5PV210 893 bool "Use Samsung S3C UART 3 for low-level debug" 894 help 895 Say Y here if you want the debug print routines to direct 896 their output to UART 3. The port must have been initialised 897 by the boot-loader before use. 898 899 config DEBUG_S3C2410_UART0 900 depends on ARCH_S3C24XX 901 select DEBUG_S3C2410_UART 902 bool "Use S3C2410/S3C2412 UART 0 for low-level debug" 903 help 904 Say Y here if you want the debug print routines to direct 905 their output to UART 0. The port must have been initialised 906 by the boot-loader before use. 907 908 config DEBUG_S3C2410_UART1 909 depends on ARCH_S3C24XX 910 select DEBUG_S3C2410_UART 911 bool "Use S3C2410/S3C2412 UART 1 for low-level debug" 912 help 913 Say Y here if you want the debug print routines to direct 914 their output to UART 1. The port must have been initialised 915 by the boot-loader before use. 916 917 config DEBUG_S3C2410_UART2 918 depends on ARCH_S3C24XX 919 select DEBUG_S3C2410_UART 920 bool "Use S3C2410/S3C2412 UART 2 for low-level debug" 921 help 922 Say Y here if you want the debug print routines to direct 923 their output to UART 2. The port must have been initialised 924 by the boot-loader before use. 925 926 config DEBUG_SA1100 927 depends on ARCH_SA1100 928 bool "Use SA1100 UARTs for low-level debug" 929 help 930 Say Y here if you want kernel low-level debugging support 931 on SA-11x0 UART ports. The kernel will check for the first 932 enabled UART in a sequence 3-1-2. 933 934 config DEBUG_SOCFPGA_UART0 935 depends on ARCH_SOCFPGA 936 bool "Use SOCFPGA UART0 for low-level debug" 937 select DEBUG_UART_8250 938 help 939 Say Y here if you want kernel low-level debugging support 940 on SOCFPGA(Cyclone 5 and Arria 5) based platforms. 941 942 config DEBUG_SOCFPGA_UART1 943 depends on ARCH_SOCFPGA 944 bool "Use SOCFPGA UART1 for low-level debug" 945 select DEBUG_UART_8250 946 help 947 Say Y here if you want kernel low-level debugging support 948 on SOCFPGA(Arria 10) based platforms. 949 950 951 config DEBUG_SUN9I_UART0 952 bool "Kernel low-level debugging messages via sun9i UART0" 953 depends on MACH_SUN9I 954 select DEBUG_UART_8250 955 help 956 Say Y here if you want kernel low-level debugging support 957 on Allwinner A80 based platforms on the UART0. 958 959 config DEBUG_SUNXI_UART0 960 bool "Kernel low-level debugging messages via sunXi UART0" 961 depends on ARCH_SUNXI 962 select DEBUG_UART_8250 963 help 964 Say Y here if you want kernel low-level debugging support 965 on Allwinner A1X based platforms on the UART0. 966 967 config DEBUG_SUNXI_UART1 968 bool "Kernel low-level debugging messages via sunXi UART1" 969 depends on ARCH_SUNXI 970 select DEBUG_UART_8250 971 help 972 Say Y here if you want kernel low-level debugging support 973 on Allwinner A1X based platforms on the UART1. 974 975 config DEBUG_SUNXI_R_UART 976 bool "Kernel low-level debugging messages via sunXi R_UART" 977 depends on MACH_SUN6I || MACH_SUN8I 978 select DEBUG_UART_8250 979 help 980 Say Y here if you want kernel low-level debugging support 981 on Allwinner A31/A23 based platforms on the R_UART. 982 983 config TEGRA_DEBUG_UART_AUTO_ODMDATA 984 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" 985 depends on ARCH_TEGRA 986 select DEBUG_TEGRA_UART 987 help 988 Automatically determines which UART to use for low-level 989 debug based on the ODMDATA value. This value is part of 990 the BCT, and is written to the boot memory device using 991 nvflash, or other flashing tool. When bits 19:18 are 3, 992 then bits 17:15 indicate which UART to use; 0/1/2/3/4 993 are UART A/B/C/D/E. 994 995 config TEGRA_DEBUG_UARTA 996 bool "Kernel low-level debugging messages via Tegra UART A" 997 depends on ARCH_TEGRA 998 select DEBUG_TEGRA_UART 999 help 1000 Say Y here if you want kernel low-level debugging support 1001 on Tegra based platforms. 1002 1003 config TEGRA_DEBUG_UARTB 1004 bool "Kernel low-level debugging messages via Tegra UART B" 1005 depends on ARCH_TEGRA 1006 select DEBUG_TEGRA_UART 1007 help 1008 Say Y here if you want kernel low-level debugging support 1009 on Tegra based platforms. 1010 1011 config TEGRA_DEBUG_UARTC 1012 bool "Kernel low-level debugging messages via Tegra UART C" 1013 depends on ARCH_TEGRA 1014 select DEBUG_TEGRA_UART 1015 help 1016 Say Y here if you want kernel low-level debugging support 1017 on Tegra based platforms. 1018 1019 config TEGRA_DEBUG_UARTD 1020 bool "Kernel low-level debugging messages via Tegra UART D" 1021 depends on ARCH_TEGRA 1022 select DEBUG_TEGRA_UART 1023 help 1024 Say Y here if you want kernel low-level debugging support 1025 on Tegra based platforms. 1026 1027 config TEGRA_DEBUG_UARTE 1028 bool "Kernel low-level debugging messages via Tegra UART E" 1029 depends on ARCH_TEGRA 1030 select DEBUG_TEGRA_UART 1031 help 1032 Say Y here if you want kernel low-level debugging support 1033 on Tegra based platforms. 1034 1035 config DEBUG_SIRFPRIMA2_UART1 1036 bool "Kernel low-level debugging messages via SiRFprimaII UART1" 1037 depends on ARCH_PRIMA2 1038 select DEBUG_SIRFSOC_UART 1039 help 1040 Say Y here if you want the debug print routines to direct 1041 their output to the uart1 port on SiRFprimaII devices. 1042 1043 config DEBUG_SIRFATLAS7_UART0 1044 bool "Kernel low-level debugging messages via SiRFatlas7 UART0" 1045 depends on ARCH_ATLAS7 1046 select DEBUG_SIRFSOC_UART 1047 help 1048 Say Y here if you want the debug print routines to direct 1049 their output to the uart0 port on SiRFATLAS7 devices.The uart0 1050 is used on SiRFATLAS7 as a extra debug port.sometimes an extra 1051 debug port can be very useful. 1052 1053 config DEBUG_SIRFATLAS7_UART1 1054 bool "Kernel low-level debugging messages via SiRFatlas7 UART1" 1055 depends on ARCH_ATLAS7 1056 select DEBUG_SIRFSOC_UART 1057 help 1058 Say Y here if you want the debug print routines to direct 1059 their output to the uart1 port on SiRFATLAS7 devices. 1060 1061 config STIH41X_DEBUG_ASC2 1062 bool "Use StiH415/416 ASC2 UART for low-level debug" 1063 depends on ARCH_STI 1064 select DEBUG_STI_UART 1065 help 1066 Say Y here if you want kernel low-level debugging support 1067 on STiH415/416 based platforms like b2000, which has 1068 default UART wired up to ASC2. 1069 1070 If unsure, say N. 1071 1072 config STIH41X_DEBUG_SBC_ASC1 1073 bool "Use StiH415/416 SBC ASC1 UART for low-level debug" 1074 depends on ARCH_STI 1075 select DEBUG_STI_UART 1076 help 1077 Say Y here if you want kernel low-level debugging support 1078 on STiH415/416 based platforms like b2020. which has 1079 default UART wired up to SBC ASC1. 1080 1081 If unsure, say N. 1082 1083 config DEBUG_U300_UART 1084 bool "Kernel low-level debugging messages via U300 UART0" 1085 depends on ARCH_U300 1086 select DEBUG_UART_PL01X 1087 help 1088 Say Y here if you want the debug print routines to direct 1089 their output to the uart port on U300 devices. 1090 1091 config DEBUG_UX500_UART 1092 depends on ARCH_U8500 1093 bool "Use Ux500 UART for low-level debug" 1094 help 1095 Say Y here if you want kernel low-level debugging support 1096 on Ux500 based platforms. 1097 1098 config DEBUG_MT6589_UART0 1099 bool "Mediatek mt6589 UART0" 1100 depends on ARCH_MEDIATEK 1101 select DEBUG_UART_8250 1102 help 1103 Say Y here if you want kernel low-level debugging support 1104 for Mediatek mt6589 based platforms on UART0. 1105 1106 config DEBUG_MT8127_UART0 1107 bool "Mediatek mt8127/mt6592 UART0" 1108 depends on ARCH_MEDIATEK 1109 select DEBUG_UART_8250 1110 help 1111 Say Y here if you want kernel low-level debugging support 1112 for Mediatek mt8127 based platforms on UART0. 1113 1114 config DEBUG_MT8135_UART3 1115 bool "Mediatek mt8135 UART3" 1116 depends on ARCH_MEDIATEK 1117 select DEBUG_UART_8250 1118 help 1119 Say Y here if you want kernel low-level debugging support 1120 for Mediatek mt8135 based platforms on UART3. 1121 1122 config DEBUG_VEXPRESS_UART0_DETECT 1123 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" 1124 depends on ARCH_VEXPRESS && CPU_CP15_MMU 1125 help 1126 This option enables a simple heuristic which tries to determine 1127 the motherboard's memory map variant (original or RS1) and then 1128 choose the relevant UART0 base address. 1129 1130 Note that this will only work with standard A-class core tiles, 1131 and may fail with non-standard SMM or custom software models. 1132 1133 config DEBUG_VEXPRESS_UART0_CA9 1134 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" 1135 depends on ARCH_VEXPRESS 1136 select DEBUG_UART_PL01X 1137 help 1138 This option selects UART0 at 0x10009000. Except for custom models, 1139 this applies only to the V2P-CA9 tile. 1140 1141 config DEBUG_VEXPRESS_UART0_RS1 1142 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" 1143 depends on ARCH_VEXPRESS 1144 select DEBUG_UART_PL01X 1145 help 1146 This option selects UART0 at 0x1c090000. This applies to most 1147 of the tiles using the RS1 memory map, including all new A-class 1148 core tiles, FPGA-based SMMs and software models. 1149 1150 config DEBUG_VEXPRESS_UART0_CRX 1151 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" 1152 depends on ARCH_VEXPRESS && !MMU 1153 select DEBUG_UART_PL01X 1154 help 1155 This option selects UART0 at 0xb0090000. This is appropriate for 1156 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7 1157 1158 config DEBUG_VT8500_UART0 1159 bool "Use UART0 on VIA/Wondermedia SoCs" 1160 depends on ARCH_VT8500 1161 help 1162 This option selects UART0 on VIA/Wondermedia System-on-a-chip 1163 devices, including VT8500, WM8505, WM8650 and WM8850. 1164 1165 config DEBUG_ICEDCC 1166 bool "Kernel low-level debugging via EmbeddedICE DCC channel" 1167 help 1168 Say Y here if you want the debug print routines to direct 1169 their output to the EmbeddedICE macrocell's DCC channel using 1170 co-processor 14. This is known to work on the ARM9 style ICE 1171 channel and on the XScale with the PEEDI. 1172 1173 Note that the system will appear to hang during boot if there 1174 is nothing connected to read from the DCC. 1175 1176 config DEBUG_SEMIHOSTING 1177 bool "Kernel low-level debug output via semihosting I/O" 1178 help 1179 Semihosting enables code running on an ARM target to use 1180 the I/O facilities on a host debugger/emulator through a 1181 simple SVC call. The host debugger or emulator must have 1182 semihosting enabled for the special svc call to be trapped 1183 otherwise the kernel will crash. 1184 1185 This is known to work with OpenOCD, as well as 1186 ARM's Fast Models, or any other controlling environment 1187 that implements semihosting. 1188 1189 For more details about semihosting, please see 1190 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. 1191 1192 config DEBUG_ZTE_ZX 1193 bool "Use ZTE ZX UART" 1194 select DEBUG_UART_PL01X 1195 depends on ARCH_ZX 1196 help 1197 Say Y here if you are enabling ZTE ZX296702 SOC and need 1198 debug uart support. 1199 1200 This option is preferred over the platform specific 1201 options; the platform specific options are deprecated 1202 and will be soon removed. 1203 1204 config DEBUG_LL_UART_8250 1205 bool "Kernel low-level debugging via 8250 UART" 1206 help 1207 Say Y here if you wish the debug print routes to direct 1208 their output to an 8250 UART. You can use this option 1209 to provide the parameters for the 8250 UART rather than 1210 selecting one of the platform specific options above if 1211 you know the parameters for the port. 1212 1213 This option is preferred over the platform specific 1214 options; the platform specific options are deprecated 1215 and will be soon removed. 1216 1217 config DEBUG_LL_UART_EFM32 1218 bool "Kernel low-level debugging via efm32 UART" 1219 depends on ARCH_EFM32 1220 help 1221 Say Y here if you want the debug print routines to direct 1222 their output to an UART or USART port on efm32 based 1223 machines. Use the following addresses for DEBUG_UART_PHYS: 1224 1225 0x4000c000 | USART0 1226 0x4000c400 | USART1 1227 0x4000c800 | USART2 1228 0x4000e000 | UART0 1229 0x4000e400 | UART1 1230 1231 config DEBUG_LL_UART_PL01X 1232 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART" 1233 help 1234 Say Y here if you wish the debug print routes to direct 1235 their output to a PL01x Primecell UART. You can use 1236 this option to provide the parameters for the UART 1237 rather than selecting one of the platform specific 1238 options above if you know the parameters for the port. 1239 1240 This option is preferred over the platform specific 1241 options; the platform specific options are deprecated 1242 and will be soon removed. 1243 1244endchoice 1245 1246config DEBUG_EXYNOS_UART 1247 bool 1248 1249config DEBUG_S3C2410_UART 1250 bool 1251 select DEBUG_S3C24XX_UART 1252 1253config DEBUG_S3C24XX_UART 1254 bool 1255 1256config DEBUG_S5PV210_UART 1257 bool 1258 1259config DEBUG_OMAP2PLUS_UART 1260 bool 1261 depends on ARCH_OMAP2PLUS 1262 1263config DEBUG_IMX_UART_PORT 1264 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \ 1265 DEBUG_IMX25_UART || \ 1266 DEBUG_IMX21_IMX27_UART || \ 1267 DEBUG_IMX31_UART || \ 1268 DEBUG_IMX35_UART || \ 1269 DEBUG_IMX50_UART || \ 1270 DEBUG_IMX51_UART || \ 1271 DEBUG_IMX53_UART || \ 1272 DEBUG_IMX6Q_UART || \ 1273 DEBUG_IMX6SL_UART || \ 1274 DEBUG_IMX6SX_UART || \ 1275 DEBUG_IMX6UL_UART || \ 1276 DEBUG_IMX7D_UART 1277 default 1 1278 depends on ARCH_MXC 1279 help 1280 Choose UART port on which kernel low-level debug messages 1281 should be output. 1282 1283config DEBUG_VF_UART_PORT 1284 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART 1285 default 1 1286 range 0 3 1287 depends on SOC_VF610 1288 help 1289 Choose UART port on which kernel low-level debug messages 1290 should be output. 1291 1292config DEBUG_TEGRA_UART 1293 bool 1294 depends on ARCH_TEGRA 1295 1296config DEBUG_STI_UART 1297 bool 1298 depends on ARCH_STI 1299 1300config DEBUG_SIRFSOC_UART 1301 bool 1302 depends on ARCH_SIRF 1303 1304config DEBUG_LL_INCLUDE 1305 string 1306 default "debug/sa1100.S" if DEBUG_SA1100 1307 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250 1308 default "debug/at91.S" if DEBUG_AT91_UART 1309 default "debug/asm9260.S" if DEBUG_ASM9260_UART 1310 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2 1311 default "debug/meson.S" if DEBUG_MESON_UARTAO 1312 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X 1313 default "debug/exynos.S" if DEBUG_EXYNOS_UART 1314 default "debug/efm32.S" if DEBUG_LL_UART_EFM32 1315 default "debug/icedcc.S" if DEBUG_ICEDCC 1316 default "debug/imx.S" if DEBUG_IMX1_UART || \ 1317 DEBUG_IMX25_UART || \ 1318 DEBUG_IMX21_IMX27_UART || \ 1319 DEBUG_IMX31_UART || \ 1320 DEBUG_IMX35_UART || \ 1321 DEBUG_IMX50_UART || \ 1322 DEBUG_IMX51_UART || \ 1323 DEBUG_IMX53_UART ||\ 1324 DEBUG_IMX6Q_UART || \ 1325 DEBUG_IMX6SL_UART || \ 1326 DEBUG_IMX6SX_UART || \ 1327 DEBUG_IMX6UL_UART || \ 1328 DEBUG_IMX7D_UART 1329 default "debug/ks8695.S" if DEBUG_KS8695_UART 1330 default "debug/msm.S" if DEBUG_QCOM_UARTDM 1331 default "debug/netx.S" if DEBUG_NETX_UART 1332 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART 1333 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2 1334 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0 1335 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2 1336 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0 1337 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2 1338 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0 1339 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1 1340 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4 1341 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART 1342 default "debug/s5pv210.S" if DEBUG_S5PV210_UART 1343 default "debug/sirf.S" if DEBUG_SIRFSOC_UART 1344 default "debug/sti.S" if DEBUG_STI_UART 1345 default "debug/tegra.S" if DEBUG_TEGRA_UART 1346 default "debug/ux500.S" if DEBUG_UX500_UART 1347 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT 1348 default "debug/vf.S" if DEBUG_VF_UART 1349 default "debug/vt8500.S" if DEBUG_VT8500_UART0 1350 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 1351 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX 1352 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0 1353 default "mach/debug-macro.S" 1354 1355# Compatibility options for PL01x 1356config DEBUG_UART_PL01X 1357 bool 1358 1359# Compatibility options for 8250 1360config DEBUG_UART_8250 1361 def_bool ARCH_DOVE || ARCH_EBSA110 || \ 1362 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \ 1363 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \ 1364 ARCH_IOP33X || ARCH_IXP4XX || \ 1365 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC 1366 1367# Compatibility options for BCM63xx 1368config DEBUG_UART_BCM63XX 1369 def_bool ARCH_BCM_63XX 1370 1371config DEBUG_UART_PHYS 1372 hex "Physical base address of debug UART" 1373 default 0x00100a00 if DEBUG_NETX_UART 1374 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0 1375 default 0x01c28000 if DEBUG_SUNXI_UART0 1376 default 0x01c28400 if DEBUG_SUNXI_UART1 1377 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1 1378 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2 1379 default 0x01f02800 if DEBUG_SUNXI_R_UART 1380 default 0x02530c00 if DEBUG_KEYSTONE_UART0 1381 default 0x02531000 if DEBUG_KEYSTONE_UART1 1382 default 0x03010fe0 if ARCH_RPC 1383 default 0x07000000 if DEBUG_SUN9I_UART0 1384 default 0x09405000 if DEBUG_ZTE_ZX 1385 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ 1386 DEBUG_VEXPRESS_UART0_CA9 1387 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT 1388 default 0x10124000 if DEBUG_RK3X_UART0 1389 default 0x10126000 if DEBUG_RK3X_UART1 1390 default 0x101f1000 if ARCH_VERSATILE 1391 default 0x101fb000 if DEBUG_NOMADIK_UART 1392 default 0x11002000 if DEBUG_MT8127_UART0 1393 default 0x11006000 if DEBUG_MT6589_UART0 1394 default 0x11009000 if DEBUG_MT8135_UART3 1395 default 0x16000000 if ARCH_INTEGRATOR 1396 default 0x18000300 if DEBUG_BCM_5301X 1397 default 0x18010000 if DEBUG_SIRFATLAS7_UART0 1398 default 0x18020000 if DEBUG_SIRFATLAS7_UART1 1399 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1 1400 default 0x20001000 if DEBUG_HIP01_UART 1401 default 0x20060000 if DEBUG_RK29_UART0 1402 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1403 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1404 default 0x20201000 if DEBUG_BCM2835 1405 default 0x3e000000 if DEBUG_BCM_KONA_UART 1406 default 0x4000e400 if DEBUG_LL_UART_EFM32 1407 default 0x40081000 if DEBUG_LPC18XX_UART0 1408 default 0x40090000 if ARCH_LPC32XX 1409 default 0x40100000 if DEBUG_PXA_UART1 1410 default 0x42000000 if ARCH_GEMINI 1411 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1412 DEBUG_S3C2410_UART0) 1413 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1414 DEBUG_S3C2410_UART1) 1415 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1416 DEBUG_S3C2410_UART2) 1417 default 0x78000000 if DEBUG_CNS3XXX 1418 default 0x7c0003f8 if FOOTBRIDGE 1419 default 0x80010000 if DEBUG_ASM9260_UART 1420 default 0x80070000 if DEBUG_IMX23_UART 1421 default 0x80074000 if DEBUG_IMX28_UART 1422 default 0x80230000 if DEBUG_PICOXCELL_UART 1423 default 0x808c0000 if ARCH_EP93XX 1424 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1425 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1 1426 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX 1427 default 0xc0013000 if DEBUG_U300_UART 1428 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1429 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1430 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX 1431 default 0xd0012000 if DEBUG_MVEBU_UART0 1432 default 0xc81004c0 if DEBUG_MESON_UARTAO 1433 default 0xd4017000 if DEBUG_MMP_UART2 1434 default 0xd4018000 if DEBUG_MMP_UART3 1435 default 0xe0000000 if ARCH_SPEAR13XX 1436 default 0xe4007000 if DEBUG_HIP04_UART 1437 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0 1438 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1 1439 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4 1440 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2 1441 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0 1442 default 0xe8008000 if DEBUG_R7S72100_SCIF2 1443 default 0xf0000be0 if ARCH_EBSA110 1444 default 0xf040ab00 if DEBUG_BRCMSTB_UART 1445 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE 1446 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE 1447 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \ 1448 ARCH_ORION5X 1449 default 0xf7fc9000 if DEBUG_BERLIN_UART 1450 default 0xf8b00000 if DEBUG_HIX5HD2_UART 1451 default 0xf991e000 if DEBUG_QCOM_UARTDM 1452 default 0xfcb00000 if DEBUG_HI3620_UART 1453 default 0xfd883000 if DEBUG_ALPINE_UART0 1454 default 0xfe800000 if ARCH_IOP32X 1455 default 0xff690000 if DEBUG_RK32_UART2 1456 default 0xffc02000 if DEBUG_SOCFPGA_UART0 1457 default 0xffc02100 if DEBUG_SOCFPGA_UART1 1458 default 0xffd82340 if ARCH_IOP13XX 1459 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0 1460 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2 1461 default 0xfff36000 if DEBUG_HIGHBANK_UART 1462 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1463 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1464 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1465 default 0xfffe8600 if DEBUG_UART_BCM63XX 1466 default 0xfffff700 if ARCH_IOP33X 1467 depends on ARCH_EP93XX || \ 1468 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1469 DEBUG_LL_UART_EFM32 || \ 1470 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1471 DEBUG_NETX_UART || \ 1472 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \ 1473 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \ 1474 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \ 1475 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \ 1476 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \ 1477 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \ 1478 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \ 1479 DEBUG_AT91_UART 1480 1481config DEBUG_UART_VIRT 1482 hex "Virtual base address of debug UART" 1483 default 0xe0000a00 if DEBUG_NETX_UART 1484 default 0xe0010fe0 if ARCH_RPC 1485 default 0xf0000be0 if ARCH_EBSA110 1486 default 0xf0010000 if DEBUG_ASM9260_UART 1487 default 0xf01fb000 if DEBUG_NOMADIK_UART 1488 default 0xf0201000 if DEBUG_BCM2835 1489 default 0xf1000300 if DEBUG_BCM_5301X 1490 default 0xf1002000 if DEBUG_MT8127_UART0 1491 default 0xf1006000 if DEBUG_MT6589_UART0 1492 default 0xf1009000 if DEBUG_MT8135_UART3 1493 default 0xf11f1000 if ARCH_VERSATILE 1494 default 0xf1600000 if ARCH_INTEGRATOR 1495 default 0xf1c28000 if DEBUG_SUNXI_UART0 1496 default 0xf1c28400 if DEBUG_SUNXI_UART1 1497 default 0xf1f02800 if DEBUG_SUNXI_R_UART 1498 default 0xf6200000 if DEBUG_PXA_UART1 1499 default 0xf4090000 if ARCH_LPC32XX 1500 default 0xf4200000 if ARCH_GEMINI 1501 default 0xf7000000 if DEBUG_SUN9I_UART0 1502 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 1503 DEBUG_S3C2410_UART0) 1504 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 1505 DEBUG_S3C2410_UART1) 1506 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 1507 DEBUG_S3C2410_UART2) 1508 default 0xf7fc9000 if DEBUG_BERLIN_UART 1509 default 0xf8007000 if DEBUG_HIP04_UART 1510 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 1511 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 1512 default 0xfa71e000 if DEBUG_QCOM_UARTDM 1513 default 0xfb002000 if DEBUG_CNS3XXX 1514 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT 1515 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT 1516 default 0xfc40ab00 if DEBUG_BRCMSTB_UART 1517 default 0xfc705000 if DEBUG_ZTE_ZX 1518 default 0xfcfe8600 if DEBUG_UART_BCM63XX 1519 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX 1520 default 0xfd000000 if ARCH_SPEAR13XX 1521 default 0xfd012000 if ARCH_MV78XX0 1522 default 0xfd883000 if DEBUG_ALPINE_UART0 1523 default 0xfde12000 if ARCH_DOVE 1524 default 0xfe012000 if ARCH_ORION5X 1525 default 0xf31004c0 if DEBUG_MESON_UARTAO 1526 default 0xfe017000 if DEBUG_MMP_UART2 1527 default 0xfe018000 if DEBUG_MMP_UART3 1528 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART 1529 default 0xfe230000 if DEBUG_PICOXCELL_UART 1530 default 0xfe300000 if DEBUG_BCM_KONA_UART 1531 default 0xfe800000 if ARCH_IOP32X 1532 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART 1533 default 0xfeb24000 if DEBUG_RK3X_UART0 1534 default 0xfeb26000 if DEBUG_RK3X_UART1 1535 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0 1536 default 0xfeb31000 if DEBUG_KEYSTONE_UART1 1537 default 0xfec02000 if DEBUG_SOCFPGA_UART0 1538 default 0xfec02100 if DEBUG_SOCFPGA_UART1 1539 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE 1540 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE 1541 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0 1542 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0 1543 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1 1544 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1 1545 default 0xfec90000 if DEBUG_RK32_UART2 1546 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1 1547 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 1548 default 0xfed60000 if DEBUG_RK29_UART0 1549 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1550 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 1551 default 0xfedc0000 if ARCH_EP93XX 1552 default 0xfee003f8 if FOOTBRIDGE 1553 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1554 default 0xfee82340 if ARCH_IOP13XX 1555 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1556 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1557 default 0xfef36000 if DEBUG_HIGHBANK_UART 1558 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1559 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1560 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1561 default 0xfefff700 if ARCH_IOP33X 1562 default 0xff003000 if DEBUG_U300_UART 1563 default 0xffd01000 if DEBUG_HIP01_UART 1564 default DEBUG_UART_PHYS if !MMU 1565 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1566 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 1567 DEBUG_NETX_UART || \ 1568 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ 1569 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \ 1570 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 1571 1572config DEBUG_UART_8250_SHIFT 1573 int "Register offset shift for the 8250 debug UART" 1574 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1575 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X || \ 1576 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3 1577 default 2 1578 1579config DEBUG_UART_8250_WORD 1580 bool "Use 32-bit accesses for 8250 UART" 1581 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1582 depends on DEBUG_UART_8250_SHIFT >= 2 1583 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART0 || \ 1584 DEBUG_SOCFPGA_UART1 || ARCH_KEYSTONE || \ 1585 DEBUG_ALPINE_UART0 || \ 1586 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \ 1587 DEBUG_DAVINCI_DA8XX_UART2 || \ 1588 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \ 1589 DEBUG_BRCMSTB_UART 1590 1591config DEBUG_UART_8250_FLOW_CONTROL 1592 bool "Enable flow control for 8250 UART" 1593 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1594 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC 1595 1596config DEBUG_UNCOMPRESS 1597 bool 1598 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1599 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ 1600 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) 1601 help 1602 This option influences the normal decompressor output for 1603 multiplatform kernels. Normally, multiplatform kernels disable 1604 decompressor output because it is not possible to know where to 1605 send the decompressor output. 1606 1607 When this option is set, the selected DEBUG_LL output method 1608 will be re-used for normal decompressor output on multiplatform 1609 kernels. 1610 1611 1612config UNCOMPRESS_INCLUDE 1613 string 1614 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ 1615 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M 1616 default "mach/uncompress.h" 1617 1618config EARLY_PRINTK 1619 bool "Early printk" 1620 depends on DEBUG_LL 1621 help 1622 Say Y here if you want to have an early console using the 1623 kernel low-level debugging functions. Add earlyprintk to your 1624 kernel parameters to enable this console. 1625 1626config ARM_KPROBES_TEST 1627 tristate "Kprobes test module" 1628 depends on KPROBES && MODULES 1629 help 1630 Perform tests of kprobes API and instruction set simulation. 1631 1632config PID_IN_CONTEXTIDR 1633 bool "Write the current PID to the CONTEXTIDR register" 1634 depends on CPU_COPY_V6 1635 help 1636 Enabling this option causes the kernel to write the current PID to 1637 the PROCID field of the CONTEXTIDR register, at the expense of some 1638 additional instructions during context switch. Say Y here only if you 1639 are planning to use hardware trace tools with this kernel. 1640 1641config DEBUG_SET_MODULE_RONX 1642 bool "Set loadable kernel module data as NX and text as RO" 1643 depends on MODULES && MMU 1644 ---help--- 1645 This option helps catch unintended modifications to loadable 1646 kernel module's text and read-only data. It also prevents execution 1647 of module data. Such protection may interfere with run-time code 1648 patching and dynamic kernel tracing - and they might also protect 1649 against certain classes of kernel exploits. 1650 If in doubt, say "N". 1651 1652source "drivers/hwtracing/coresight/Kconfig" 1653 1654endmenu 1655