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                 select DEBUG_UART_PL01X
  96
  97         config DEBUG_CLPS711X_UART1
  98                 bool "Kernel low-level debugging messages via UART1"
  99                 depends on ARCH_CLPS711X
 100                 help
 101                   Say Y here if you want the debug print routines to direct
 102                   their output to the first serial port on these devices.
 103
 104         config DEBUG_CLPS711X_UART2
 105                 bool "Kernel low-level debugging messages via UART2"
 106                 depends on ARCH_CLPS711X
 107                 help
 108                   Say Y here if you want the debug print routines to direct
 109                   their output to the second serial port on these devices.
 110
 111         config DEBUG_CNS3XXX
 112                 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
 113                 depends on ARCH_CNS3XXX
 114                 select DEBUG_UART_PL01X
 115                 help
 116                   Say Y here if you want the debug print routines to direct
 117                   their output to the CNS3xxx UART0.
 118
 119         config DEBUG_DAVINCI_DA8XX_UART1
 120                 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
 121                 depends on ARCH_DAVINCI_DA8XX
 122                 select DEBUG_UART_8250
 123                 help
 124                   Say Y here if you want the debug print routines to direct
 125                   their output to UART1 serial port on DaVinci DA8XX devices.
 126
 127         config DEBUG_DAVINCI_DA8XX_UART2
 128                 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
 129                 depends on ARCH_DAVINCI_DA8XX
 130                 select DEBUG_UART_8250
 131                 help
 132                   Say Y here if you want the debug print routines to direct
 133                   their output to UART2 serial port on DaVinci DA8XX devices.
 134
 135         config DEBUG_DAVINCI_DMx_UART0
 136                 bool "Kernel low-level debugging on DaVinci DMx using UART0"
 137                 depends on ARCH_DAVINCI_DMx
 138                 select DEBUG_UART_8250
 139                 help
 140                   Say Y here if you want the debug print routines to direct
 141                   their output to UART0 serial port on DaVinci DMx devices.
 142
 143         config DEBUG_DAVINCI_TNETV107X_UART1
 144                 bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
 145                 depends on ARCH_DAVINCI_TNETV107X
 146                 select DEBUG_UART_8250
 147                 help
 148                   Say Y here if you want the debug print routines to direct
 149                   their output to UART1 serial port on DaVinci TNETV107X
 150                   devices.
 151
 152         config DEBUG_ZYNQ_UART0
 153                 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
 154                 depends on ARCH_ZYNQ
 155                 help
 156                   Say Y here if you want the debug print routines to direct
 157                   their output to UART0 on the Zynq platform.
 158
 159         config DEBUG_ZYNQ_UART1
 160                 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
 161                 depends on ARCH_ZYNQ
 162                 help
 163                   Say Y here if you want the debug print routines to direct
 164                   their output to UART1 on the Zynq platform.
 165
 166                   If you have a ZC702 board and want early boot messages to
 167                   appear on the USB serial adaptor, select this option.
 168
 169         config DEBUG_DC21285_PORT
 170                 bool "Kernel low-level debugging messages via footbridge serial port"
 171                 depends on FOOTBRIDGE
 172                 help
 173                   Say Y here if you want the debug print routines to direct
 174                   their output to the serial port in the DC21285 (Footbridge).
 175
 176         config DEBUG_FOOTBRIDGE_COM1
 177                 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
 178                 depends on FOOTBRIDGE
 179                 help
 180                   Say Y here if you want the debug print routines to direct
 181                   their output to the 8250 at PCI COM1.
 182
 183         config DEBUG_HI3620_UART
 184                 bool "Hisilicon HI3620 Debug UART"
 185                 depends on ARCH_HI3xxx
 186                 select DEBUG_UART_PL01X
 187                 help
 188                   Say Y here if you want kernel low-level debugging support
 189                   on HI3620 UART.
 190
 191         config DEBUG_HI3716_UART
 192                 bool "Hisilicon Hi3716 Debug UART"
 193                 depends on ARCH_HI3xxx
 194                 select DEBUG_UART_PL01X
 195                 help
 196                   Say Y here if you want kernel low-level debugging support
 197                   on HI3716 UART.
 198
 199         config DEBUG_HIGHBANK_UART
 200                 bool "Kernel low-level debugging messages via Highbank UART"
 201                 depends on ARCH_HIGHBANK
 202                 select DEBUG_UART_PL01X
 203                 help
 204                   Say Y here if you want the debug print routines to direct
 205                   their output to the UART on Highbank based devices.
 206
 207         config DEBUG_IMX1_UART
 208                 bool "i.MX1 Debug UART"
 209                 depends on SOC_IMX1
 210                 help
 211                   Say Y here if you want kernel low-level debugging support
 212                   on i.MX1.
 213
 214         config DEBUG_IMX23_UART
 215                 bool "i.MX23 Debug UART"
 216                 depends on SOC_IMX23
 217                 select DEBUG_UART_PL01X
 218                 help
 219                   Say Y here if you want kernel low-level debugging support
 220                   on i.MX23.
 221
 222         config DEBUG_IMX25_UART
 223                 bool "i.MX25 Debug UART"
 224                 depends on SOC_IMX25
 225                 help
 226                   Say Y here if you want kernel low-level debugging support
 227                   on i.MX25.
 228
 229         config DEBUG_IMX21_IMX27_UART
 230                 bool "i.MX21 and i.MX27 Debug UART"
 231                 depends on SOC_IMX21 || SOC_IMX27
 232                 help
 233                   Say Y here if you want kernel low-level debugging support
 234                   on i.MX21 or i.MX27.
 235
 236         config DEBUG_IMX28_UART
 237                 bool "i.MX28 Debug UART"
 238                 depends on SOC_IMX28
 239                 select DEBUG_UART_PL01X
 240                 help
 241                   Say Y here if you want kernel low-level debugging support
 242                   on i.MX28.
 243
 244         config DEBUG_IMX31_UART
 245                 bool "i.MX31 Debug UART"
 246                 depends on SOC_IMX31
 247                 help
 248                   Say Y here if you want kernel low-level debugging support
 249                   on i.MX31.
 250
 251         config DEBUG_IMX35_UART
 252                 bool "i.MX35 Debug UART"
 253                 depends on SOC_IMX35
 254                 help
 255                   Say Y here if you want kernel low-level debugging support
 256                   on i.MX35.
 257
 258         config DEBUG_IMX51_UART
 259                 bool "i.MX51 Debug UART"
 260                 depends on SOC_IMX51
 261                 help
 262                   Say Y here if you want kernel low-level debugging support
 263                   on i.MX51.
 264
 265         config DEBUG_IMX53_UART
 266                 bool "i.MX53 Debug UART"
 267                 depends on SOC_IMX53
 268                 help
 269                   Say Y here if you want kernel low-level debugging support
 270                   on i.MX53.
 271
 272         config DEBUG_IMX6Q_UART
 273                 bool "i.MX6Q/DL Debug UART"
 274                 depends on SOC_IMX6Q
 275                 help
 276                   Say Y here if you want kernel low-level debugging support
 277                   on i.MX6Q/DL.
 278
 279         config DEBUG_IMX6SL_UART
 280                 bool "i.MX6SL Debug UART"
 281                 depends on SOC_IMX6SL
 282                 help
 283                   Say Y here if you want kernel low-level debugging support
 284                   on i.MX6SL.
 285
 286         config DEBUG_KEYSTONE_UART0
 287                 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
 288                 depends on ARCH_KEYSTONE
 289                 select DEBUG_UART_8250
 290                 help
 291                   Say Y here if you want the debug print routines to direct
 292                   their output to UART0 serial port on KEYSTONE2 devices.
 293
 294         config DEBUG_KEYSTONE_UART1
 295                 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
 296                 depends on ARCH_KEYSTONE
 297                 select DEBUG_UART_8250
 298                 help
 299                   Say Y here if you want the debug print routines to direct
 300                   their output to UART1 serial port on KEYSTONE2 devices.
 301
 302         config DEBUG_MMP_UART2
 303                 bool "Kernel low-level debugging message via MMP UART2"
 304                 depends on ARCH_MMP
 305                 select DEBUG_UART_8250
 306                 help
 307                   Say Y here if you want kernel low-level debugging support
 308                   on MMP UART2.
 309
 310         config DEBUG_MMP_UART3
 311                 bool "Kernel low-level debugging message via MMP UART3"
 312                 depends on ARCH_MMP
 313                 select DEBUG_UART_8250
 314                 help
 315                   Say Y here if you want kernel low-level debugging support
 316                   on MMP UART3.
 317
 318         config DEBUG_MSM_UART1
 319                 bool "Kernel low-level debugging messages via MSM UART1"
 320                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 321                 help
 322                   Say Y here if you want the debug print routines to direct
 323                   their output to the first serial port on MSM devices.
 324
 325         config DEBUG_MSM_UART2
 326                 bool "Kernel low-level debugging messages via MSM UART2"
 327                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 328                 help
 329                   Say Y here if you want the debug print routines to direct
 330                   their output to the second serial port on MSM devices.
 331
 332         config DEBUG_MSM_UART3
 333                 bool "Kernel low-level debugging messages via MSM UART3"
 334                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 335                 help
 336                   Say Y here if you want the debug print routines to direct
 337                   their output to the third serial port on MSM devices.
 338
 339         config DEBUG_MSM8660_UART
 340                 bool "Kernel low-level debugging messages via MSM 8660 UART"
 341                 depends on ARCH_MSM8X60
 342                 select MSM_HAS_DEBUG_UART_HS
 343                 help
 344                   Say Y here if you want the debug print routines to direct
 345                   their output to the serial port on MSM 8660 devices.
 346
 347         config DEBUG_MSM8960_UART
 348                 bool "Kernel low-level debugging messages via MSM 8960 UART"
 349                 depends on ARCH_MSM8960
 350                 select MSM_HAS_DEBUG_UART_HS
 351                 help
 352                   Say Y here if you want the debug print routines to direct
 353                   their output to the serial port on MSM 8960 devices.
 354
 355         config DEBUG_MVEBU_UART
 356                 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
 357                 depends on ARCH_MVEBU
 358                 select DEBUG_UART_8250
 359                 help
 360                   Say Y here if you want kernel low-level debugging support
 361                   on MVEBU based platforms.
 362
 363                   This option should be used with the old bootloaders
 364                   that left the internal registers mapped at
 365                   0xd0000000. As of today, this is the case on
 366                   platforms such as the Globalscale Mirabox or the
 367                   Plathome OpenBlocks AX3, when using the original
 368                   bootloader.
 369
 370                   If the wrong DEBUG_MVEBU_UART* option is selected,
 371                   when u-boot hands over to the kernel, the system
 372                   silently crashes, with no serial output at all.
 373
 374         config DEBUG_MVEBU_UART_ALTERNATE
 375                 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
 376                 depends on ARCH_MVEBU
 377                 select DEBUG_UART_8250
 378                 help
 379                   Say Y here if you want kernel low-level debugging support
 380                   on MVEBU based platforms.
 381
 382                   This option should be used with the new bootloaders
 383                   that remap the internal registers at 0xf1000000.
 384
 385                   If the wrong DEBUG_MVEBU_UART* option is selected,
 386                   when u-boot hands over to the kernel, the system
 387                   silently crashes, with no serial output at all.
 388
 389         config DEBUG_VF_UART
 390                 bool "Vybrid UART"
 391                 depends on SOC_VF610
 392                 help
 393                   Say Y here if you want kernel low-level debugging support
 394                   on Vybrid based platforms.
 395
 396         config DEBUG_NOMADIK_UART
 397                 bool "Kernel low-level debugging messages via NOMADIK UART"
 398                 depends on ARCH_NOMADIK
 399                 select DEBUG_UART_PL01X
 400                 help
 401                   Say Y here if you want kernel low-level debugging support
 402                   on NOMADIK based platforms.
 403
 404         config DEBUG_NSPIRE_CLASSIC_UART
 405                 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
 406                 depends on ARCH_NSPIRE
 407                 select DEBUG_UART_8250
 408                 help
 409                   Say Y here if you want kernel low-level debugging support
 410                   on TI-NSPIRE classic models.
 411
 412         config DEBUG_NSPIRE_CX_UART
 413                 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
 414                 depends on ARCH_NSPIRE
 415                 select DEBUG_UART_PL01X
 416                 help
 417                   Say Y here if you want kernel low-level debugging support
 418                   on TI-NSPIRE CX models.
 419
 420         config DEBUG_OMAP2UART1
 421                 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
 422                 depends on ARCH_OMAP2PLUS
 423                 select DEBUG_OMAP2PLUS_UART
 424                 help
 425                   This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
 426                   omap3 torpedo and 3530 lv som.
 427
 428         config DEBUG_OMAP2UART2
 429                 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
 430                 depends on ARCH_OMAP2PLUS
 431                 select DEBUG_OMAP2PLUS_UART
 432
 433         config DEBUG_OMAP2UART3
 434                 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
 435                 depends on ARCH_OMAP2PLUS
 436                 select DEBUG_OMAP2PLUS_UART
 437
 438         config DEBUG_OMAP3UART3
 439                 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
 440                 depends on ARCH_OMAP2PLUS
 441                 select DEBUG_OMAP2PLUS_UART
 442                 help
 443                   This covers at least cm_t3x, beagle, crane, devkit8000,
 444                   igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
 445                   and 3517evm.
 446
 447         config DEBUG_OMAP4UART3
 448                 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
 449                 depends on ARCH_OMAP2PLUS
 450                 select DEBUG_OMAP2PLUS_UART
 451
 452         config DEBUG_OMAP3UART4
 453                 bool "Kernel low-level debugging messages via OMAP36XX UART4"
 454                 depends on ARCH_OMAP2PLUS
 455                 select DEBUG_OMAP2PLUS_UART
 456
 457         config DEBUG_OMAP4UART4
 458                 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
 459                 depends on ARCH_OMAP2PLUS
 460                 select DEBUG_OMAP2PLUS_UART
 461
 462         config DEBUG_TI81XXUART1
 463                 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
 464                 depends on ARCH_OMAP2PLUS
 465                 select DEBUG_OMAP2PLUS_UART
 466
 467         config DEBUG_TI81XXUART2
 468                 bool "Kernel low-level debugging messages via TI81XX UART2"
 469                 depends on ARCH_OMAP2PLUS
 470                 select DEBUG_OMAP2PLUS_UART
 471
 472         config DEBUG_TI81XXUART3
 473                 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
 474                 depends on ARCH_OMAP2PLUS
 475                 select DEBUG_OMAP2PLUS_UART
 476
 477         config DEBUG_AM33XXUART1
 478                 bool "Kernel low-level debugging messages via AM33XX UART1"
 479                 depends on ARCH_OMAP2PLUS
 480                 select DEBUG_OMAP2PLUS_UART
 481
 482         config DEBUG_ZOOM_UART
 483                 bool "Kernel low-level debugging messages via Zoom2/3 UART"
 484                 depends on ARCH_OMAP2PLUS
 485                 select DEBUG_OMAP2PLUS_UART
 486
 487         config DEBUG_PICOXCELL_UART
 488                 depends on ARCH_PICOXCELL
 489                 bool "Use PicoXcell UART for low-level debug"
 490                 select DEBUG_UART_8250
 491                 help
 492                   Say Y here if you want kernel low-level debugging support
 493                   on PicoXcell based platforms.
 494
 495         config DEBUG_PXA_UART1
 496                 depends on ARCH_PXA
 497                 bool "Use PXA UART1 for low-level debug"
 498                 select DEBUG_UART_8250
 499                 help
 500                   Say Y here if you want kernel low-level debugging support
 501                   on PXA UART1.
 502
 503         config DEBUG_REALVIEW_STD_PORT
 504                 bool "RealView Default UART"
 505                 depends on ARCH_REALVIEW
 506                 select DEBUG_UART_PL01X
 507                 help
 508                   Say Y here if you want the debug print routines to direct
 509                   their output to the serial port on RealView EB, PB11MP, PBA8
 510                   and PBX platforms.
 511
 512         config DEBUG_REALVIEW_PB1176_PORT
 513                 bool "RealView PB1176 UART"
 514                 depends on MACH_REALVIEW_PB1176
 515                 select DEBUG_UART_PL01X
 516                 help
 517                   Say Y here if you want the debug print routines to direct
 518                   their output to the standard serial port on the RealView
 519                   PB1176 platform.
 520
 521         config DEBUG_RK29_UART0
 522                 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
 523                 depends on ARCH_ROCKCHIP
 524                 select DEBUG_UART_8250
 525                 help
 526                   Say Y here if you want kernel low-level debugging support
 527                   on Rockchip based platforms.
 528
 529         config DEBUG_RK29_UART1
 530                 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
 531                 depends on ARCH_ROCKCHIP
 532                 select DEBUG_UART_8250
 533                 help
 534                   Say Y here if you want kernel low-level debugging support
 535                   on Rockchip based platforms.
 536
 537         config DEBUG_RK29_UART2
 538                 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
 539                 depends on ARCH_ROCKCHIP
 540                 select DEBUG_UART_8250
 541                 help
 542                   Say Y here if you want kernel low-level debugging support
 543                   on Rockchip based platforms.
 544
 545         config DEBUG_RK3X_UART0
 546                 bool "Kernel low-level debugging messages via Rockchip RK3X UART0"
 547                 depends on ARCH_ROCKCHIP
 548                 select DEBUG_UART_8250
 549                 help
 550                   Say Y here if you want kernel low-level debugging support
 551                   on Rockchip based platforms.
 552
 553         config DEBUG_RK3X_UART1
 554                 bool "Kernel low-level debugging messages via Rockchip RK3X UART1"
 555                 depends on ARCH_ROCKCHIP
 556                 select DEBUG_UART_8250
 557                 help
 558                   Say Y here if you want kernel low-level debugging support
 559                   on Rockchip based platforms.
 560
 561         config DEBUG_RK3X_UART2
 562                 bool "Kernel low-level debugging messages via Rockchip RK3X UART2"
 563                 depends on ARCH_ROCKCHIP
 564                 select DEBUG_UART_8250
 565                 help
 566                   Say Y here if you want kernel low-level debugging support
 567                   on Rockchip based platforms.
 568
 569         config DEBUG_RK3X_UART3
 570                 bool "Kernel low-level debugging messages via Rockchip RK3X UART3"
 571                 depends on ARCH_ROCKCHIP
 572                 select DEBUG_UART_8250
 573                 help
 574                   Say Y here if you want kernel low-level debugging support
 575                   on Rockchip based platforms.
 576
 577         config DEBUG_S3C_UART0
 578                 depends on PLAT_SAMSUNG
 579                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 580                 bool "Use S3C UART 0 for low-level debug"
 581                 help
 582                   Say Y here if you want the debug print routines to direct
 583                   their output to UART 0. The port must have been initialised
 584                   by the boot-loader before use.
 585
 586                   The uncompressor code port configuration is now handled
 587                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 588
 589         config DEBUG_S3C_UART1
 590                 depends on PLAT_SAMSUNG
 591                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 592                 bool "Use S3C UART 1 for low-level debug"
 593                 help
 594                   Say Y here if you want the debug print routines to direct
 595                   their output to UART 1. The port must have been initialised
 596                   by the boot-loader before use.
 597
 598                   The uncompressor code port configuration is now handled
 599                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 600
 601         config DEBUG_S3C_UART2
 602                 depends on PLAT_SAMSUNG
 603                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 604                 bool "Use S3C UART 2 for low-level debug"
 605                 help
 606                   Say Y here if you want the debug print routines to direct
 607                   their output to UART 2. The port must have been initialised
 608                   by the boot-loader before use.
 609
 610                   The uncompressor code port configuration is now handled
 611                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 612
 613         config DEBUG_S3C_UART3
 614                 depends on PLAT_SAMSUNG && ARCH_EXYNOS
 615                 select DEBUG_EXYNOS_UART
 616                 bool "Use S3C UART 3 for low-level debug"
 617                 help
 618                   Say Y here if you want the debug print routines to direct
 619                   their output to UART 3. The port must have been initialised
 620                   by the boot-loader before use.
 621
 622                   The uncompressor code port configuration is now handled
 623                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 624
 625         config DEBUG_SOCFPGA_UART
 626                 depends on ARCH_SOCFPGA
 627                 bool "Use SOCFPGA UART for low-level debug"
 628                 select DEBUG_UART_8250
 629                 help
 630                   Say Y here if you want kernel low-level debugging support
 631                   on SOCFPGA based platforms.
 632
 633         config DEBUG_SUNXI_UART0
 634                 bool "Kernel low-level debugging messages via sunXi UART0"
 635                 depends on ARCH_SUNXI
 636                 select DEBUG_UART_8250
 637                 help
 638                   Say Y here if you want kernel low-level debugging support
 639                   on Allwinner A1X based platforms on the UART0.
 640
 641         config DEBUG_SUNXI_UART1
 642                 bool "Kernel low-level debugging messages via sunXi UART1"
 643                 depends on ARCH_SUNXI
 644                 select DEBUG_UART_8250
 645                 help
 646                   Say Y here if you want kernel low-level debugging support
 647                   on Allwinner A1X based platforms on the UART1.
 648
 649         config TEGRA_DEBUG_UART_AUTO_ODMDATA
 650                 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
 651                 depends on ARCH_TEGRA
 652                 select DEBUG_TEGRA_UART
 653                 help
 654                   Automatically determines which UART to use for low-level
 655                   debug based on the ODMDATA value. This value is part of
 656                   the BCT, and is written to the boot memory device using
 657                   nvflash, or other flashing tool.  When bits 19:18 are 3,
 658                   then bits 17:15 indicate which UART to use; 0/1/2/3/4
 659                   are UART A/B/C/D/E.
 660
 661         config TEGRA_DEBUG_UARTA
 662                 bool "Kernel low-level debugging messages via Tegra UART A"
 663                 depends on ARCH_TEGRA
 664                 select DEBUG_TEGRA_UART
 665                 help
 666                   Say Y here if you want kernel low-level debugging support
 667                   on Tegra based platforms.
 668
 669         config TEGRA_DEBUG_UARTB
 670                 bool "Kernel low-level debugging messages via Tegra UART B"
 671                 depends on ARCH_TEGRA
 672                 select DEBUG_TEGRA_UART
 673                 help
 674                   Say Y here if you want kernel low-level debugging support
 675                   on Tegra based platforms.
 676
 677         config TEGRA_DEBUG_UARTC
 678                 bool "Kernel low-level debugging messages via Tegra UART C"
 679                 depends on ARCH_TEGRA
 680                 select DEBUG_TEGRA_UART
 681                 help
 682                   Say Y here if you want kernel low-level debugging support
 683                   on Tegra based platforms.
 684
 685         config TEGRA_DEBUG_UARTD
 686                 bool "Kernel low-level debugging messages via Tegra UART D"
 687                 depends on ARCH_TEGRA
 688                 select DEBUG_TEGRA_UART
 689                 help
 690                   Say Y here if you want kernel low-level debugging support
 691                   on Tegra based platforms.
 692
 693         config TEGRA_DEBUG_UARTE
 694                 bool "Kernel low-level debugging messages via Tegra UART E"
 695                 depends on ARCH_TEGRA
 696                 select DEBUG_TEGRA_UART
 697                 help
 698                   Say Y here if you want kernel low-level debugging support
 699                   on Tegra based platforms.
 700
 701         config DEBUG_SIRFPRIMA2_UART1
 702                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
 703                 depends on ARCH_PRIMA2
 704                 help
 705                   Say Y here if you want the debug print routines to direct
 706                   their output to the uart1 port on SiRFprimaII devices.
 707
 708         config DEBUG_SIRFMARCO_UART1
 709                 bool "Kernel low-level debugging messages via SiRFmarco UART1"
 710                 depends on ARCH_MARCO
 711                 help
 712                   Say Y here if you want the debug print routines to direct
 713                   their output to the uart1 port on SiRFmarco devices.
 714
 715         config STIH41X_DEBUG_ASC2
 716                 bool "Use StiH415/416 ASC2 UART for low-level debug"
 717                 depends on ARCH_STI
 718                 select DEBUG_STI_UART
 719                 help
 720                   Say Y here if you want kernel low-level debugging support
 721                   on STiH415/416 based platforms like b2000, which has
 722                   default UART wired up to ASC2.
 723
 724                   If unsure, say N.
 725
 726         config STIH41X_DEBUG_SBC_ASC1
 727                 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
 728                 depends on ARCH_STI
 729                 select DEBUG_STI_UART
 730                 help
 731                   Say Y here if you want kernel low-level debugging support
 732                   on STiH415/416 based platforms like b2020. which has
 733                   default UART wired up to SBC ASC1.
 734
 735                   If unsure, say N.
 736
 737         config DEBUG_U300_UART
 738                 bool "Kernel low-level debugging messages via U300 UART0"
 739                 depends on ARCH_U300
 740                 select DEBUG_UART_PL01X
 741                 help
 742                   Say Y here if you want the debug print routines to direct
 743                   their output to the uart port on U300 devices.
 744
 745         config DEBUG_UX500_UART
 746                 depends on ARCH_U8500
 747                 bool "Use Ux500 UART for low-level debug"
 748                 help
 749                   Say Y here if you want kernel low-level debugging support
 750                   on Ux500 based platforms.
 751
 752         config DEBUG_VEXPRESS_UART0_DETECT
 753                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
 754                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
 755                 help
 756                   This option enables a simple heuristic which tries to determine
 757                   the motherboard's memory map variant (original or RS1) and then
 758                   choose the relevant UART0 base address.
 759
 760                   Note that this will only work with standard A-class core tiles,
 761                   and may fail with non-standard SMM or custom software models.
 762
 763         config DEBUG_VEXPRESS_UART0_CA9
 764                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
 765                 depends on ARCH_VEXPRESS
 766                 select DEBUG_UART_PL01X
 767                 help
 768                   This option selects UART0 at 0x10009000. Except for custom models,
 769                   this applies only to the V2P-CA9 tile.
 770
 771         config DEBUG_VEXPRESS_UART0_RS1
 772                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
 773                 depends on ARCH_VEXPRESS
 774                 select DEBUG_UART_PL01X
 775                 help
 776                   This option selects UART0 at 0x1c090000. This applies to most
 777                   of the tiles using the RS1 memory map, including all new A-class
 778                   core tiles, FPGA-based SMMs and software models.
 779
 780         config DEBUG_VEXPRESS_UART0_CRX
 781                 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
 782                 depends on ARCH_VEXPRESS && !MMU
 783                 select DEBUG_UART_PL01X
 784                 help
 785                   This option selects UART0 at 0xb0090000. This is appropriate for
 786                   Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
 787
 788         config DEBUG_VT8500_UART0
 789                 bool "Use UART0 on VIA/Wondermedia SoCs"
 790                 depends on ARCH_VT8500
 791                 help
 792                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
 793                   devices, including VT8500, WM8505, WM8650 and WM8850.
 794
 795         config DEBUG_LL_UART_NONE
 796                 bool "No low-level debugging UART"
 797                 depends on !ARCH_MULTIPLATFORM
 798                 help
 799                   Say Y here if your platform doesn't provide a UART option
 800                   above. This relies on your platform choosing the right UART
 801                   definition internally in order for low-level debugging to
 802                   work.
 803
 804         config DEBUG_ICEDCC
 805                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
 806                 help
 807                   Say Y here if you want the debug print routines to direct
 808                   their output to the EmbeddedICE macrocell's DCC channel using
 809                   co-processor 14. This is known to work on the ARM9 style ICE
 810                   channel and on the XScale with the PEEDI.
 811
 812                   Note that the system will appear to hang during boot if there
 813                   is nothing connected to read from the DCC.
 814
 815         config DEBUG_SEMIHOSTING
 816                 bool "Kernel low-level debug output via semihosting I/O"
 817                 help
 818                   Semihosting enables code running on an ARM target to use
 819                   the I/O facilities on a host debugger/emulator through a
 820                   simple SVC call. The host debugger or emulator must have
 821                   semihosting enabled for the special svc call to be trapped
 822                   otherwise the kernel will crash.
 823
 824                   This is known to work with OpenOCD, as well as
 825                   ARM's Fast Models, or any other controlling environment
 826                   that implements semihosting.
 827
 828                   For more details about semihosting, please see
 829                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
 830
 831         config DEBUG_LL_UART_8250
 832                 bool "Kernel low-level debugging via 8250 UART"
 833                 help
 834                   Say Y here if you wish the debug print routes to direct
 835                   their output to an 8250 UART.  You can use this option
 836                   to provide the parameters for the 8250 UART rather than
 837                   selecting one of the platform specific options above if
 838                   you know the parameters for the port.
 839
 840                   This option is preferred over the platform specific
 841                   options; the platform specific options are deprecated
 842                   and will be soon removed.
 843
 844         config DEBUG_LL_UART_PL01X
 845                 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
 846                 help
 847                   Say Y here if you wish the debug print routes to direct
 848                   their output to a PL01x Primecell UART.  You can use
 849                   this option to provide the parameters for the UART
 850                   rather than selecting one of the platform specific
 851                   options above if you know the parameters for the port.
 852
 853                   This option is preferred over the platform specific
 854                   options; the platform specific options are deprecated
 855                   and will be soon removed.
 856
 857 endchoice
 858
 859 config DEBUG_EXYNOS_UART
 860         bool
 861
 862 config DEBUG_OMAP2PLUS_UART
 863         bool
 864         depends on ARCH_OMAP2PLUS
 865
 866 config DEBUG_IMX_UART_PORT
 867         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
 868                                                 DEBUG_IMX25_UART || \
 869                                                 DEBUG_IMX21_IMX27_UART || \
 870                                                 DEBUG_IMX31_UART || \
 871                                                 DEBUG_IMX35_UART || \
 872                                                 DEBUG_IMX51_UART || \
 873                                                 DEBUG_IMX53_UART || \
 874                                                 DEBUG_IMX6Q_UART || \
 875                                                 DEBUG_IMX6SL_UART
 876         default 1
 877         depends on ARCH_MXC
 878         help
 879           Choose UART port on which kernel low-level debug messages
 880           should be output.
 881
 882 config DEBUG_TEGRA_UART
 883         bool
 884         depends on ARCH_TEGRA
 885
 886 config DEBUG_STI_UART
 887         bool
 888         depends on ARCH_STI
 889
 890 config DEBUG_LL_INCLUDE
 891         string
 892         default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
 893         default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
 894         default "debug/exynos.S" if DEBUG_EXYNOS_UART
 895         default "debug/icedcc.S" if DEBUG_ICEDCC
 896         default "debug/imx.S" if DEBUG_IMX1_UART || \
 897                                  DEBUG_IMX25_UART || \
 898                                  DEBUG_IMX21_IMX27_UART || \
 899                                  DEBUG_IMX31_UART || \
 900                                  DEBUG_IMX35_UART || \
 901                                  DEBUG_IMX51_UART || \
 902                                  DEBUG_IMX53_UART ||\
 903                                  DEBUG_IMX6Q_UART || \
 904                                  DEBUG_IMX6SL_UART
 905         default "debug/msm.S" if DEBUG_MSM_UART1 || \
 906                                  DEBUG_MSM_UART2 || \
 907                                  DEBUG_MSM_UART3 || \
 908                                  DEBUG_MSM8660_UART || \
 909                                  DEBUG_MSM8960_UART
 910         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
 911         default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
 912         default "debug/sti.S" if DEBUG_STI_UART
 913         default "debug/tegra.S" if DEBUG_TEGRA_UART
 914         default "debug/ux500.S" if DEBUG_UX500_UART
 915         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
 916         default "debug/vf.S" if DEBUG_VF_UART
 917         default "debug/vt8500.S" if DEBUG_VT8500_UART0
 918         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
 919         default "mach/debug-macro.S"
 920
 921 # Compatibility options for PL01x
 922 config DEBUG_UART_PL01X
 923         def_bool ARCH_EP93XX || \
 924                 ARCH_INTEGRATOR || \
 925                 ARCH_SPEAR3XX || \
 926                 ARCH_SPEAR6XX || \
 927                 ARCH_SPEAR13XX || \
 928                 ARCH_VERSATILE
 929
 930 # Compatibility options for 8250
 931 config DEBUG_UART_8250
 932         def_bool ARCH_DOVE || ARCH_EBSA110 || \
 933                 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
 934                 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
 935                 ARCH_IOP33X || ARCH_IXP4XX || ARCH_KIRKWOOD || \
 936                 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
 937
 938 config DEBUG_UART_PHYS
 939         hex "Physical base address of debug UART"
 940         default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
 941         default 0x01c28000 if DEBUG_SUNXI_UART0
 942         default 0x01c28400 if DEBUG_SUNXI_UART1
 943         default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
 944         default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
 945         default 0x02530c00 if DEBUG_KEYSTONE_UART0
 946         default 0x02531000 if DEBUG_KEYSTONE_UART1
 947         default 0x03010fe0 if ARCH_RPC
 948         default 0x08108300 if DEBUG_DAVINCI_TNETV107X_UART1
 949         default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
 950                                 DEBUG_VEXPRESS_UART0_CA9
 951         default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
 952         default 0x10124000 if DEBUG_RK3X_UART0
 953         default 0x10126000 if DEBUG_RK3X_UART1
 954         default 0x101f1000 if ARCH_VERSATILE
 955         default 0x101fb000 if DEBUG_NOMADIK_UART
 956         default 0x16000000 if ARCH_INTEGRATOR
 957         default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
 958         default 0x20060000 if DEBUG_RK29_UART0
 959         default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
 960         default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
 961         default 0x20201000 if DEBUG_BCM2835
 962         default 0x40090000 if ARCH_LPC32XX
 963         default 0x40100000 if DEBUG_PXA_UART1
 964         default 0x42000000 if ARCH_GEMINI
 965         default 0x7c0003f8 if FOOTBRIDGE
 966         default 0x80230000 if DEBUG_PICOXCELL_UART
 967         default 0x80070000 if DEBUG_IMX23_UART
 968         default 0x80074000 if DEBUG_IMX28_UART
 969         default 0x808c0000 if ARCH_EP93XX
 970         default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
 971         default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
 972         default 0xc0013000 if DEBUG_U300_UART
 973         default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
 974         default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
 975         default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
 976         default 0xd0012000 if DEBUG_MVEBU_UART
 977         default 0xd4017000 if DEBUG_MMP_UART2
 978         default 0xd4018000 if DEBUG_MMP_UART3
 979         default 0xe0000000 if ARCH_SPEAR13XX
 980         default 0xf0000be0 if ARCH_EBSA110
 981         default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
 982         default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
 983                                 ARCH_ORION5X
 984         default 0xf8b00000 if DEBUG_HI3716_UART
 985         default 0xfcb00000 if DEBUG_HI3620_UART
 986         default 0xfe800000 if ARCH_IOP32X
 987         default 0xffc02000 if DEBUG_SOCFPGA_UART
 988         default 0xffd82340 if ARCH_IOP13XX
 989         default 0xfff36000 if DEBUG_HIGHBANK_UART
 990         default 0xfffff700 if ARCH_IOP33X
 991         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
 992                 DEBUG_UART_8250 || DEBUG_UART_PL01X
 993
 994 config DEBUG_UART_VIRT
 995         hex "Virtual base address of debug UART"
 996         default 0xe0010fe0 if ARCH_RPC
 997         default 0xf0000be0 if ARCH_EBSA110
 998         default 0xf0009000 if DEBUG_CNS3XXX
 999         default 0xf01fb000 if DEBUG_NOMADIK_UART
1000         default 0xf0201000 if DEBUG_BCM2835
1001         default 0xf11f1000 if ARCH_VERSATILE
1002         default 0xf1600000 if ARCH_INTEGRATOR
1003         default 0xf1c28000 if DEBUG_SUNXI_UART0
1004         default 0xf1c28400 if DEBUG_SUNXI_UART1
1005         default 0xf2100000 if DEBUG_PXA_UART1
1006         default 0xf4090000 if ARCH_LPC32XX
1007         default 0xf4200000 if ARCH_GEMINI
1008         default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1009         default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1010         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1011         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1012         default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1013         default 0xfd000000 if ARCH_SPEAR13XX
1014         default 0xfd012000 if ARCH_MV78XX0
1015         default 0xfde12000 if ARCH_DOVE
1016         default 0xfe012000 if ARCH_ORION5X
1017         default 0xfe017000 if DEBUG_MMP_UART2
1018         default 0xfe018000 if DEBUG_MMP_UART3
1019         default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1020         default 0xfe230000 if DEBUG_PICOXCELL_UART
1021         default 0xfe800000 if ARCH_IOP32X
1022         default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
1023         default 0xfeb24000 if DEBUG_RK3X_UART0
1024         default 0xfeb26000 if DEBUG_RK3X_UART1
1025         default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1026         default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1027         default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1028         default 0xfed60000 if DEBUG_RK29_UART0
1029         default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1030         default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1031         default 0xfec02000 if DEBUG_SOCFPGA_UART
1032         default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1033         default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1034         default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1035         default 0xfed12000 if ARCH_KIRKWOOD
1036         default 0xfedc0000 if ARCH_EP93XX
1037         default 0xfee003f8 if FOOTBRIDGE
1038         default 0xfee08300 if DEBUG_DAVINCI_TNETV107X_UART1
1039         default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1040         default 0xfef36000 if DEBUG_HIGHBANK_UART
1041         default 0xfee82340 if ARCH_IOP13XX
1042         default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1043         default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1044         default 0xfefff700 if ARCH_IOP33X
1045         default 0xff003000 if DEBUG_U300_UART
1046         default DEBUG_UART_PHYS if !MMU
1047         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1048                 DEBUG_UART_8250 || DEBUG_UART_PL01X
1049
1050 config DEBUG_UART_8250_SHIFT
1051         int "Register offset shift for the 8250 debug UART"
1052         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1053         default 0 if FOOTBRIDGE || ARCH_IOP32X
1054         default 2
1055
1056 config DEBUG_UART_8250_WORD
1057         bool "Use 32-bit accesses for 8250 UART"
1058         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1059         depends on DEBUG_UART_8250_SHIFT >= 2
1060         default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1061                 ARCH_KEYSTONE || \
1062                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1063                 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_DAVINCI_TNETV107X_UART1
1064
1065 config DEBUG_UART_8250_FLOW_CONTROL
1066         bool "Enable flow control for 8250 UART"
1067         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1068         default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1069
1070 config DEBUG_UNCOMPRESS
1071         bool
1072         depends on ARCH_MULTIPLATFORM || ARCH_MSM
1073         default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1074                      (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1075         help
1076           This option influences the normal decompressor output for
1077           multiplatform kernels.  Normally, multiplatform kernels disable
1078           decompressor output because it is not possible to know where to
1079           send the decompressor output.
1080
1081           When this option is set, the selected DEBUG_LL output method
1082           will be re-used for normal decompressor output on multiplatform
1083           kernels.
1084
1085
1086 config UNCOMPRESS_INCLUDE
1087         string
1088         default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM
1089         default "mach/uncompress.h"
1090
1091 config EARLY_PRINTK
1092         bool "Early printk"
1093         depends on DEBUG_LL
1094         help
1095           Say Y here if you want to have an early console using the
1096           kernel low-level debugging functions. Add earlyprintk to your
1097           kernel parameters to enable this console.
1098
1099 config OC_ETM
1100         bool "On-chip ETM and ETB"
1101         depends on ARM_AMBA
1102         help
1103           Enables the on-chip embedded trace macrocell and embedded trace
1104           buffer driver that will allow you to collect traces of the
1105           kernel code.
1106
1107 config ARM_KPROBES_TEST
1108         tristate "Kprobes test module"
1109         depends on KPROBES && MODULES
1110         help
1111           Perform tests of kprobes API and instruction set simulation.
1112
1113 config PID_IN_CONTEXTIDR
1114         bool "Write the current PID to the CONTEXTIDR register"
1115         depends on CPU_COPY_V6
1116         help
1117           Enabling this option causes the kernel to write the current PID to
1118           the PROCID field of the CONTEXTIDR register, at the expense of some
1119           additional instructions during context switch. Say Y here only if you
1120           are planning to use hardware trace tools with this kernel.
1121
1122 endmenu