arch/arm/Kconfig.debug

   1 menu "Kernel hacking"
   2
   3 source "lib/Kconfig.debug"
   4
   5 config STRICT_DEVMEM
   6         bool "Filter access to /dev/mem"
   7         depends on MMU
   8         ---help---
   9           If this option is disabled, you allow userspace (root) access to all
  10           of memory, including kernel and userspace memory. Accidental
  11           access to this is obviously disastrous, but specific access can
  12           be used by people debugging the kernel.
  13
  14           If this option is switched on, the /dev/mem file only allows
  15           userspace access to memory mapped peripherals.
  16
  17           If in doubt, say Y.
  18
  19 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
  20 # If you know what you are doing and are willing to live without stack
  21 # traces, you can get a slightly smaller kernel by setting this option to
  22 # n, but then RMK will have to kill you ;).
  23 config FRAME_POINTER
  24         bool
  25         depends on !THUMB2_KERNEL
  26         default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
  27         help
  28           If you say N here, the resulting kernel will be slightly smaller and
  29           faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
  30           when a problem occurs with the kernel, the information that is
  31           reported is severely limited.
  32
  33 config ARM_UNWIND
  34         bool "Enable stack unwinding support (EXPERIMENTAL)"
  35         depends on AEABI
  36         default y
  37         help
  38           This option enables stack unwinding support in the kernel
  39           using the information automatically generated by the
  40           compiler. The resulting kernel image is slightly bigger but
  41           the performance is not affected. Currently, this feature
  42           only works with EABI compilers. If unsure say Y.
  43
  44 config OLD_MCOUNT
  45         bool
  46         depends on FUNCTION_TRACER && FRAME_POINTER
  47         default y
  48
  49 config DEBUG_USER
  50         bool "Verbose user fault messages"
  51         help
  52           When a user program crashes due to an exception, the kernel can
  53           print a brief message explaining what the problem was. This is
  54           sometimes helpful for debugging but serves no purpose on a
  55           production system. Most people should say N here.
  56
  57           In addition, you need to pass user_debug=N on the kernel command
  58           line to enable this feature.  N consists of the sum of:
  59
  60               1 - undefined instruction events
  61               2 - system calls
  62               4 - invalid data aborts
  63               8 - SIGSEGV faults
  64              16 - SIGBUS faults
  65
  66 # These options are only for real kernel hackers who want to get their hands dirty.
  67 config DEBUG_LL
  68         bool "Kernel low-level debugging functions (read help!)"
  69         depends on DEBUG_KERNEL
  70         help
  71           Say Y here to include definitions of printascii, printch, printhex
  72           in the kernel.  This is helpful if you are debugging code that
  73           executes before the console is initialized.
  74
  75           Note that selecting this option will limit the kernel to a single
  76           UART definition, as specified below. Attempting to boot the kernel
  77           image on a different platform *will not work*, so this option should
  78           not be enabled for kernels that are intended to be portable.
  79
  80 choice
  81         prompt "Kernel low-level debugging port"
  82         depends on DEBUG_LL
  83
  84         config AT91_DEBUG_LL_DBGU0
  85                 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
  86                 depends on HAVE_AT91_DBGU0
  87
  88         config AT91_DEBUG_LL_DBGU1
  89                 bool "Kernel low-level debugging on 9263 and 9g45"
  90                 depends on HAVE_AT91_DBGU1
  91
  92         config DEBUG_BCM2835
  93                 bool "Kernel low-level debugging on BCM2835 PL011 UART"
  94                 depends on ARCH_BCM2835
  95
  96         config DEBUG_CLPS711X_UART1
  97                 bool "Kernel low-level debugging messages via UART1"
  98                 depends on ARCH_CLPS711X
  99                 help
 100                   Say Y here if you want the debug print routines to direct
 101                   their output to the first serial port on these devices.
 102
 103         config DEBUG_CLPS711X_UART2
 104                 bool "Kernel low-level debugging messages via UART2"
 105                 depends on ARCH_CLPS711X
 106                 help
 107                   Say Y here if you want the debug print routines to direct
 108                   their output to the second serial port on these devices.
 109
 110         config DEBUG_CNS3XXX
 111                 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
 112                 depends on ARCH_CNS3XXX
 113                 help
 114                   Say Y here if you want the debug print routines to direct
 115                   their output to the CNS3xxx UART0.
 116
 117         config DEBUG_DAVINCI_DA8XX_UART1
 118                 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
 119                 depends on ARCH_DAVINCI_DA8XX
 120                 help
 121                   Say Y here if you want the debug print routines to direct
 122                   their output to UART1 serial port on DaVinci DA8XX devices.
 123
 124         config DEBUG_DAVINCI_DA8XX_UART2
 125                 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
 126                 depends on ARCH_DAVINCI_DA8XX
 127                 help
 128                   Say Y here if you want the debug print routines to direct
 129                   their output to UART2 serial port on DaVinci DA8XX devices.
 130
 131         config DEBUG_DAVINCI_DMx_UART0
 132                 bool "Kernel low-level debugging on DaVinci DMx using UART0"
 133                 depends on ARCH_DAVINCI_DMx
 134                 help
 135                   Say Y here if you want the debug print routines to direct
 136                   their output to UART0 serial port on DaVinci DMx devices.
 137
 138         config DEBUG_DAVINCI_TNETV107X_UART1
 139                 bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
 140                 depends on ARCH_DAVINCI_TNETV107X
 141                 help
 142                   Say Y here if you want the debug print routines to direct
 143                   their output to UART1 serial port on DaVinci TNETV107X
 144                   devices.
 145
 146         config DEBUG_ZYNQ_UART0
 147                 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
 148                 depends on ARCH_ZYNQ
 149                 help
 150                   Say Y here if you want the debug print routines to direct
 151                   their output to UART0 on the Zynq platform.
 152
 153         config DEBUG_ZYNQ_UART1
 154                 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
 155                 depends on ARCH_ZYNQ
 156                 help
 157                   Say Y here if you want the debug print routines to direct
 158                   their output to UART1 on the Zynq platform.
 159
 160                   If you have a ZC702 board and want early boot messages to
 161                   appear on the USB serial adaptor, select this option.
 162
 163         config DEBUG_DC21285_PORT
 164                 bool "Kernel low-level debugging messages via footbridge serial port"
 165                 depends on FOOTBRIDGE
 166                 help
 167                   Say Y here if you want the debug print routines to direct
 168                   their output to the serial port in the DC21285 (Footbridge).
 169
 170         config DEBUG_FOOTBRIDGE_COM1
 171                 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
 172                 depends on FOOTBRIDGE
 173                 help
 174                   Say Y here if you want the debug print routines to direct
 175                   their output to the 8250 at PCI COM1.
 176
 177         config DEBUG_HIGHBANK_UART
 178                 bool "Kernel low-level debugging messages via Highbank UART"
 179                 depends on ARCH_HIGHBANK
 180                 help
 181                   Say Y here if you want the debug print routines to direct
 182                   their output to the UART on Highbank based devices.
 183
 184         config DEBUG_IMX1_UART
 185                 bool "i.MX1 Debug UART"
 186                 depends on SOC_IMX1
 187                 help
 188                   Say Y here if you want kernel low-level debugging support
 189                   on i.MX1.
 190
 191         config DEBUG_IMX23_UART
 192                 bool "i.MX23 Debug UART"
 193                 depends on SOC_IMX23
 194                 help
 195                   Say Y here if you want kernel low-level debugging support
 196                   on i.MX23.
 197
 198         config DEBUG_IMX25_UART
 199                 bool "i.MX25 Debug UART"
 200                 depends on SOC_IMX25
 201                 help
 202                   Say Y here if you want kernel low-level debugging support
 203                   on i.MX25.
 204
 205         config DEBUG_IMX21_IMX27_UART
 206                 bool "i.MX21 and i.MX27 Debug UART"
 207                 depends on SOC_IMX21 || SOC_IMX27
 208                 help
 209                   Say Y here if you want kernel low-level debugging support
 210                   on i.MX21 or i.MX27.
 211
 212         config DEBUG_IMX28_UART
 213                 bool "i.MX28 Debug UART"
 214                 depends on SOC_IMX28
 215                 help
 216                   Say Y here if you want kernel low-level debugging support
 217                   on i.MX28.
 218
 219         config DEBUG_IMX31_UART
 220                 bool "i.MX31 Debug UART"
 221                 depends on SOC_IMX31
 222                 help
 223                   Say Y here if you want kernel low-level debugging support
 224                   on i.MX31.
 225
 226         config DEBUG_IMX35_UART
 227                 bool "i.MX35 Debug UART"
 228                 depends on SOC_IMX35
 229                 help
 230                   Say Y here if you want kernel low-level debugging support
 231                   on i.MX35.
 232
 233         config DEBUG_IMX51_UART
 234                 bool "i.MX51 Debug UART"
 235                 depends on SOC_IMX51
 236                 help
 237                   Say Y here if you want kernel low-level debugging support
 238                   on i.MX51.
 239
 240         config DEBUG_IMX53_UART
 241                 bool "i.MX53 Debug UART"
 242                 depends on SOC_IMX53
 243                 help
 244                   Say Y here if you want kernel low-level debugging support
 245                   on i.MX53.
 246
 247         config DEBUG_IMX6Q_UART
 248                 bool "i.MX6Q/DL Debug UART"
 249                 depends on SOC_IMX6Q
 250                 help
 251                   Say Y here if you want kernel low-level debugging support
 252                   on i.MX6Q/DL.
 253
 254         config DEBUG_KEYSTONE_UART0
 255                 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
 256                 depends on ARCH_KEYSTONE
 257                 help
 258                   Say Y here if you want the debug print routines to direct
 259                   their output to UART0 serial port on KEYSTONE2 devices.
 260
 261         config DEBUG_KEYSTONE_UART1
 262                 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
 263                 depends on ARCH_KEYSTONE
 264                 help
 265                   Say Y here if you want the debug print routines to direct
 266                   their output to UART1 serial port on KEYSTONE2 devices.
 267
 268         config DEBUG_MMP_UART2
 269                 bool "Kernel low-level debugging message via MMP UART2"
 270                 depends on ARCH_MMP
 271                 help
 272                   Say Y here if you want kernel low-level debugging support
 273                   on MMP UART2.
 274
 275         config DEBUG_MMP_UART3
 276                 bool "Kernel low-level debugging message via MMP UART3"
 277                 depends on ARCH_MMP
 278                 help
 279                   Say Y here if you want kernel low-level debugging support
 280                   on MMP UART3.
 281
 282         config DEBUG_MSM_UART1
 283                 bool "Kernel low-level debugging messages via MSM UART1"
 284                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 285                 help
 286                   Say Y here if you want the debug print routines to direct
 287                   their output to the first serial port on MSM devices.
 288
 289         config DEBUG_MSM_UART2
 290                 bool "Kernel low-level debugging messages via MSM UART2"
 291                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 292                 help
 293                   Say Y here if you want the debug print routines to direct
 294                   their output to the second serial port on MSM devices.
 295
 296         config DEBUG_MSM_UART3
 297                 bool "Kernel low-level debugging messages via MSM UART3"
 298                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 299                 help
 300                   Say Y here if you want the debug print routines to direct
 301                   their output to the third serial port on MSM devices.
 302
 303         config DEBUG_MSM8660_UART
 304                 bool "Kernel low-level debugging messages via MSM 8660 UART"
 305                 depends on ARCH_MSM8X60
 306                 select MSM_HAS_DEBUG_UART_HS
 307                 help
 308                   Say Y here if you want the debug print routines to direct
 309                   their output to the serial port on MSM 8660 devices.
 310
 311         config DEBUG_MSM8960_UART
 312                 bool "Kernel low-level debugging messages via MSM 8960 UART"
 313                 depends on ARCH_MSM8960
 314                 select MSM_HAS_DEBUG_UART_HS
 315                 help
 316                   Say Y here if you want the debug print routines to direct
 317                   their output to the serial port on MSM 8960 devices.
 318
 319         config DEBUG_MVEBU_UART
 320                 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
 321                 depends on ARCH_MVEBU
 322                 help
 323                   Say Y here if you want kernel low-level debugging support
 324                   on MVEBU based platforms.
 325
 326                   This option should be used with the old bootloaders
 327                   that left the internal registers mapped at
 328                   0xd0000000. As of today, this is the case on
 329                   platforms such as the Globalscale Mirabox or the
 330                   Plathome OpenBlocks AX3, when using the original
 331                   bootloader.
 332
 333                   If the wrong DEBUG_MVEBU_UART* option is selected,
 334                   when u-boot hands over to the kernel, the system
 335                   silently crashes, with no serial output at all.
 336
 337         config DEBUG_MVEBU_UART_ALTERNATE
 338                 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
 339                 depends on ARCH_MVEBU
 340                 help
 341                   Say Y here if you want kernel low-level debugging support
 342                   on MVEBU based platforms.
 343
 344                   This option should be used with the new bootloaders
 345                   that remap the internal registers at 0xf1000000.
 346
 347                   If the wrong DEBUG_MVEBU_UART* option is selected,
 348                   when u-boot hands over to the kernel, the system
 349                   silently crashes, with no serial output at all.
 350
 351         config DEBUG_NOMADIK_UART
 352                 bool "Kernel low-level debugging messages via NOMADIK UART"
 353                 depends on ARCH_NOMADIK
 354                 help
 355                   Say Y here if you want kernel low-level debugging support
 356                   on NOMADIK based platforms.
 357
 358         config DEBUG_OMAP2PLUS_UART
 359                 bool "Kernel low-level debugging messages via OMAP2PLUS UART"
 360                 depends on ARCH_OMAP2PLUS
 361                 help
 362                   Say Y here if you want kernel low-level debugging support
 363                   on OMAP2PLUS based platforms.
 364
 365         config DEBUG_PICOXCELL_UART
 366                 depends on ARCH_PICOXCELL
 367                 bool "Use PicoXcell UART for low-level debug"
 368                 help
 369                   Say Y here if you want kernel low-level debugging support
 370                   on PicoXcell based platforms.
 371
 372         config DEBUG_PXA_UART1
 373                 depends on ARCH_PXA
 374                 bool "Use PXA UART1 for low-level debug"
 375                 help
 376                   Say Y here if you want kernel low-level debugging support
 377                   on PXA UART1.
 378
 379         config DEBUG_REALVIEW_STD_PORT
 380                 bool "RealView Default UART"
 381                 depends on ARCH_REALVIEW
 382                 help
 383                   Say Y here if you want the debug print routines to direct
 384                   their output to the serial port on RealView EB, PB11MP, PBA8
 385                   and PBX platforms.
 386
 387         config DEBUG_REALVIEW_PB1176_PORT
 388                 bool "RealView PB1176 UART"
 389                 depends on MACH_REALVIEW_PB1176
 390                 help
 391                   Say Y here if you want the debug print routines to direct
 392                   their output to the standard serial port on the RealView
 393                   PB1176 platform.
 394
 395         config DEBUG_S3C_UART0
 396                 depends on PLAT_SAMSUNG
 397                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 398                 bool "Use S3C UART 0 for low-level debug"
 399                 help
 400                   Say Y here if you want the debug print routines to direct
 401                   their output to UART 0. The port must have been initialised
 402                   by the boot-loader before use.
 403
 404                   The uncompressor code port configuration is now handled
 405                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 406
 407         config DEBUG_S3C_UART1
 408                 depends on PLAT_SAMSUNG
 409                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 410                 bool "Use S3C UART 1 for low-level debug"
 411                 help
 412                   Say Y here if you want the debug print routines to direct
 413                   their output to UART 1. The port must have been initialised
 414                   by the boot-loader before use.
 415
 416                   The uncompressor code port configuration is now handled
 417                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 418
 419         config DEBUG_S3C_UART2
 420                 depends on PLAT_SAMSUNG
 421                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 422                 bool "Use S3C UART 2 for low-level debug"
 423                 help
 424                   Say Y here if you want the debug print routines to direct
 425                   their output to UART 2. The port must have been initialised
 426                   by the boot-loader before use.
 427
 428                   The uncompressor code port configuration is now handled
 429                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 430
 431         config DEBUG_S3C_UART3
 432                 depends on PLAT_SAMSUNG && ARCH_EXYNOS
 433                 select DEBUG_EXYNOS_UART
 434                 bool "Use S3C UART 3 for low-level debug"
 435                 help
 436                   Say Y here if you want the debug print routines to direct
 437                   their output to UART 3. The port must have been initialised
 438                   by the boot-loader before use.
 439
 440                   The uncompressor code port configuration is now handled
 441                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 442
 443         config DEBUG_SOCFPGA_UART
 444                 depends on ARCH_SOCFPGA
 445                 bool "Use SOCFPGA UART for low-level debug"
 446                 help
 447                   Say Y here if you want kernel low-level debugging support
 448                   on SOCFPGA based platforms.
 449
 450         config DEBUG_SUNXI_UART0
 451                 bool "Kernel low-level debugging messages via sunXi UART0"
 452                 depends on ARCH_SUNXI
 453                 help
 454                   Say Y here if you want kernel low-level debugging support
 455                   on Allwinner A1X based platforms on the UART0.
 456
 457         config DEBUG_SUNXI_UART1
 458                 bool "Kernel low-level debugging messages via sunXi UART1"
 459                 depends on ARCH_SUNXI
 460                 help
 461                   Say Y here if you want kernel low-level debugging support
 462                   on Allwinner A1X based platforms on the UART1.
 463
 464         config DEBUG_TEGRA_UART
 465                 depends on ARCH_TEGRA
 466                 bool "Use Tegra UART for low-level debug"
 467                 help
 468                   Say Y here if you want kernel low-level debugging support
 469                   on Tegra based platforms.
 470
 471         config DEBUG_SIRFPRIMA2_UART1
 472                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
 473                 depends on ARCH_PRIMA2
 474                 help
 475                   Say Y here if you want the debug print routines to direct
 476                   their output to the uart1 port on SiRFprimaII devices.
 477
 478         config DEBUG_SIRFMARCO_UART1
 479                 bool "Kernel low-level debugging messages via SiRFmarco UART1"
 480                 depends on ARCH_MARCO
 481                 help
 482                   Say Y here if you want the debug print routines to direct
 483                   their output to the uart1 port on SiRFmarco devices.
 484
 485         config DEBUG_U300_UART
 486                 bool "Kernel low-level debugging messages via U300 UART0"
 487                 depends on ARCH_U300
 488                 help
 489                   Say Y here if you want the debug print routines to direct
 490                   their output to the uart port on U300 devices.
 491
 492         config DEBUG_UX500_UART
 493                 depends on ARCH_U8500
 494                 bool "Use Ux500 UART for low-level debug"
 495                 help
 496                   Say Y here if you want kernel low-level debugging support
 497                   on Ux500 based platforms.
 498
 499         config DEBUG_VEXPRESS_UART0_DETECT
 500                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
 501                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
 502                 help
 503                   This option enables a simple heuristic which tries to determine
 504                   the motherboard's memory map variant (original or RS1) and then
 505                   choose the relevant UART0 base address.
 506
 507                   Note that this will only work with standard A-class core tiles,
 508                   and may fail with non-standard SMM or custom software models.
 509
 510         config DEBUG_VEXPRESS_UART0_CA9
 511                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
 512                 depends on ARCH_VEXPRESS
 513                 help
 514                   This option selects UART0 at 0x10009000. Except for custom models,
 515                   this applies only to the V2P-CA9 tile.
 516
 517         config DEBUG_VEXPRESS_UART0_RS1
 518                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
 519                 depends on ARCH_VEXPRESS
 520                 help
 521                   This option selects UART0 at 0x1c090000. This applies to most
 522                   of the tiles using the RS1 memory map, including all new A-class
 523                   core tiles, FPGA-based SMMs and software models.
 524
 525         config DEBUG_VT8500_UART0
 526                 bool "Use UART0 on VIA/Wondermedia SoCs"
 527                 depends on ARCH_VT8500
 528                 help
 529                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
 530                   devices, including VT8500, WM8505, WM8650 and WM8850.
 531
 532         config DEBUG_LL_UART_NONE
 533                 bool "No low-level debugging UART"
 534                 depends on !ARCH_MULTIPLATFORM
 535                 help
 536                   Say Y here if your platform doesn't provide a UART option
 537                   below. This relies on your platform choosing the right UART
 538                   definition internally in order for low-level debugging to
 539                   work.
 540
 541         config DEBUG_ICEDCC
 542                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
 543                 help
 544                   Say Y here if you want the debug print routines to direct
 545                   their output to the EmbeddedICE macrocell's DCC channel using
 546                   co-processor 14. This is known to work on the ARM9 style ICE
 547                   channel and on the XScale with the PEEDI.
 548
 549                   Note that the system will appear to hang during boot if there
 550                   is nothing connected to read from the DCC.
 551
 552         config DEBUG_SEMIHOSTING
 553                 bool "Kernel low-level debug output via semihosting I/O"
 554                 help
 555                   Semihosting enables code running on an ARM target to use
 556                   the I/O facilities on a host debugger/emulator through a
 557                   simple SVC call. The host debugger or emulator must have
 558                   semihosting enabled for the special svc call to be trapped
 559                   otherwise the kernel will crash.
 560
 561                   This is known to work with OpenOCD, as well as
 562                   ARM's Fast Models, or any other controlling environment
 563                   that implements semihosting.
 564
 565                   For more details about semihosting, please see
 566                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
 567
 568 endchoice
 569
 570 config DEBUG_EXYNOS_UART
 571         bool
 572
 573 config DEBUG_IMX_UART_PORT
 574         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
 575                                                 DEBUG_IMX25_UART || \
 576                                                 DEBUG_IMX21_IMX27_UART || \
 577                                                 DEBUG_IMX31_UART || \
 578                                                 DEBUG_IMX35_UART || \
 579                                                 DEBUG_IMX51_UART || \
 580                                                 DEBUG_IMX53_UART || \
 581                                                 DEBUG_IMX6Q_UART
 582         default 1
 583         depends on ARCH_MXC
 584         help
 585           Choose UART port on which kernel low-level debug messages
 586           should be output.
 587
 588 choice
 589         prompt "Low-level debug console UART"
 590         depends on DEBUG_OMAP2PLUS_UART
 591
 592         config DEBUG_OMAP2UART1
 593                 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
 594                 help
 595                   This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
 596                   omap3 torpedo and 3530 lv som.
 597
 598         config DEBUG_OMAP2UART2
 599                 bool "OMAP2/3/4 UART2"
 600
 601         config DEBUG_OMAP2UART3
 602                 bool "OMAP2 UART3 (n8x0)"
 603
 604         config DEBUG_OMAP3UART3
 605                 bool "OMAP3 UART3 (most omap3 boards)"
 606                 help
 607                   This covers at least cm_t3x, beagle, crane, devkit8000,
 608                   igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
 609                   and 3517evm.
 610
 611         config DEBUG_OMAP4UART3
 612                 bool "OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
 613
 614         config DEBUG_OMAP3UART4
 615                 bool "OMAP36XX UART4"
 616
 617         config DEBUG_OMAP4UART4
 618                 bool "OMAP4/5 UART4"
 619
 620         config DEBUG_TI81XXUART1
 621                 bool "TI81XX UART1 (ti8148evm)"
 622
 623         config DEBUG_TI81XXUART2
 624                 bool "TI81XX UART2"
 625
 626         config DEBUG_TI81XXUART3
 627                 bool "TI81XX UART3 (ti8168evm)"
 628
 629         config DEBUG_AM33XXUART1
 630                 bool "AM33XX UART1"
 631
 632         config DEBUG_ZOOM_UART
 633                 bool "Zoom2/3 UART"
 634 endchoice
 635
 636 choice
 637         prompt "Low-level debug console UART"
 638         depends on DEBUG_LL && DEBUG_TEGRA_UART
 639
 640         config TEGRA_DEBUG_UART_AUTO_ODMDATA
 641         bool "Via ODMDATA"
 642         help
 643           Automatically determines which UART to use for low-level debug based
 644           on the ODMDATA value. This value is part of the BCT, and is written
 645           to the boot memory device using nvflash, or other flashing tool.
 646           When bits 19:18 are 3, then bits 17:15 indicate which UART to use;
 647           0/1/2/3/4 are UART A/B/C/D/E.
 648
 649         config TEGRA_DEBUG_UARTA
 650                 bool "UART A"
 651
 652         config TEGRA_DEBUG_UARTB
 653                 bool "UART B"
 654
 655         config TEGRA_DEBUG_UARTC
 656                 bool "UART C"
 657
 658         config TEGRA_DEBUG_UARTD
 659                 bool "UART D"
 660
 661         config TEGRA_DEBUG_UARTE
 662                 bool "UART E"
 663
 664 endchoice
 665
 666 config DEBUG_LL_INCLUDE
 667         string
 668         default "debug/bcm2835.S" if DEBUG_BCM2835
 669         default "debug/cns3xxx.S" if DEBUG_CNS3XXX
 670         default "debug/exynos.S" if DEBUG_EXYNOS_UART
 671         default "debug/highbank.S" if DEBUG_HIGHBANK_UART
 672         default "debug/icedcc.S" if DEBUG_ICEDCC
 673         default "debug/imx.S" if DEBUG_IMX1_UART || \
 674                                  DEBUG_IMX25_UART || \
 675                                  DEBUG_IMX21_IMX27_UART || \
 676                                  DEBUG_IMX31_UART || \
 677                                  DEBUG_IMX35_UART || \
 678                                  DEBUG_IMX51_UART || \
 679                                  DEBUG_IMX53_UART ||\
 680                                  DEBUG_IMX6Q_UART
 681         default "debug/keystone.S" if DEBUG_KEYSTONE_UART0 || \
 682                                       DEBUG_KEYSTONE_UART1
 683         default "debug/mvebu.S" if DEBUG_MVEBU_UART || \
 684                                    DEBUG_MVEBU_UART_ALTERNATE
 685         default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
 686         default "debug/nomadik.S" if DEBUG_NOMADIK_UART
 687         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
 688         default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
 689         default "debug/pxa.S" if DEBUG_PXA_UART1 || DEBUG_MMP_UART2 || \
 690                                  DEBUG_MMP_UART3
 691         default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
 692         default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
 693         default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
 694         default "debug/tegra.S" if DEBUG_TEGRA_UART
 695         default "debug/u300.S" if DEBUG_U300_UART
 696         default "debug/ux500.S" if DEBUG_UX500_UART
 697         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \
 698                 DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1
 699         default "debug/vt8500.S" if DEBUG_VT8500_UART0
 700         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
 701         default "mach/debug-macro.S"
 702
 703 config DEBUG_UNCOMPRESS
 704         bool
 705         default y if ARCH_MULTIPLATFORM && DEBUG_LL && \
 706                      !DEBUG_OMAP2PLUS_UART && \
 707                      !DEBUG_TEGRA_UART
 708
 709 config UNCOMPRESS_INCLUDE
 710         string
 711         default "debug/uncompress.h" if ARCH_MULTIPLATFORM
 712         default "mach/uncompress.h"
 713
 714 config EARLY_PRINTK
 715         bool "Early printk"
 716         depends on DEBUG_LL
 717         help
 718           Say Y here if you want to have an early console using the
 719           kernel low-level debugging functions. Add earlyprintk to your
 720           kernel parameters to enable this console.
 721
 722 config OC_ETM
 723         bool "On-chip ETM and ETB"
 724         depends on ARM_AMBA
 725         help
 726           Enables the on-chip embedded trace macrocell and embedded trace
 727           buffer driver that will allow you to collect traces of the
 728           kernel code.
 729
 730 config ARM_KPROBES_TEST
 731         tristate "Kprobes test module"
 732         depends on KPROBES && MODULES
 733         help
 734           Perform tests of kprobes API and instruction set simulation.
 735
 736 config PID_IN_CONTEXTIDR
 737         bool "Write the current PID to the CONTEXTIDR register"
 738         depends on CPU_COPY_V6
 739         help
 740           Enabling this option causes the kernel to write the current PID to
 741           the PROCID field of the CONTEXTIDR register, at the expense of some
 742           additional instructions during context switch. Say Y here only if you
 743           are planning to use hardware trace tools with this kernel.
 744
 745 endmenu