arch/arm/Kconfig.debug

   1 menu "Kernel hacking"
   2
   3 source "lib/Kconfig.debug"
   4
   5 config ARM_PTDUMP
   6         bool "Export kernel pagetable layout to userspace via debugfs"
   7         depends on DEBUG_KERNEL
   8         select DEBUG_FS
   9         ---help---
  10           Say Y here if you want to show the kernel pagetable layout in a
  11           debugfs file. This information is only useful for kernel developers
  12           who are working in architecture specific areas of the kernel.
  13           It is probably not a good idea to enable this feature in a production
  14           kernel.
  15           If in doubt, say "N"
  16
  17 config STRICT_DEVMEM
  18         bool "Filter access to /dev/mem"
  19         depends on MMU
  20         ---help---
  21           If this option is disabled, you allow userspace (root) access to all
  22           of memory, including kernel and userspace memory. Accidental
  23           access to this is obviously disastrous, but specific access can
  24           be used by people debugging the kernel.
  25
  26           If this option is switched on, the /dev/mem file only allows
  27           userspace access to memory mapped peripherals.
  28
  29           If in doubt, say Y.
  30
  31 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
  32 # If you know what you are doing and are willing to live without stack
  33 # traces, you can get a slightly smaller kernel by setting this option to
  34 # n, but then RMK will have to kill you ;).
  35 config FRAME_POINTER
  36         bool
  37         depends on !THUMB2_KERNEL
  38         default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
  39         help
  40           If you say N here, the resulting kernel will be slightly smaller and
  41           faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
  42           when a problem occurs with the kernel, the information that is
  43           reported is severely limited.
  44
  45 config ARM_UNWIND
  46         bool "Enable stack unwinding support (EXPERIMENTAL)"
  47         depends on AEABI
  48         default y
  49         help
  50           This option enables stack unwinding support in the kernel
  51           using the information automatically generated by the
  52           compiler. The resulting kernel image is slightly bigger but
  53           the performance is not affected. Currently, this feature
  54           only works with EABI compilers. If unsure say Y.
  55
  56 config OLD_MCOUNT
  57         bool
  58         depends on FUNCTION_TRACER && FRAME_POINTER
  59         default y
  60
  61 config DEBUG_USER
  62         bool "Verbose user fault messages"
  63         help
  64           When a user program crashes due to an exception, the kernel can
  65           print a brief message explaining what the problem was. This is
  66           sometimes helpful for debugging but serves no purpose on a
  67           production system. Most people should say N here.
  68
  69           In addition, you need to pass user_debug=N on the kernel command
  70           line to enable this feature.  N consists of the sum of:
  71
  72               1 - undefined instruction events
  73               2 - system calls
  74               4 - invalid data aborts
  75               8 - SIGSEGV faults
  76              16 - SIGBUS faults
  77
  78 # These options are only for real kernel hackers who want to get their hands dirty.
  79 config DEBUG_LL
  80         bool "Kernel low-level debugging functions (read help!)"
  81         depends on DEBUG_KERNEL
  82         help
  83           Say Y here to include definitions of printascii, printch, printhex
  84           in the kernel.  This is helpful if you are debugging code that
  85           executes before the console is initialized.
  86
  87           Note that selecting this option will limit the kernel to a single
  88           UART definition, as specified below. Attempting to boot the kernel
  89           image on a different platform *will not work*, so this option should
  90           not be enabled for kernels that are intended to be portable.
  91
  92 choice
  93         prompt "Kernel low-level debugging port"
  94         depends on DEBUG_LL
  95
  96         config AT91_DEBUG_LL_DBGU0
  97                 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
  98                 depends on HAVE_AT91_DBGU0
  99
 100         config AT91_DEBUG_LL_DBGU1
 101                 bool "Kernel low-level debugging on 9263 and 9g45"
 102                 depends on HAVE_AT91_DBGU1
 103
 104         config DEBUG_BCM2835
 105                 bool "Kernel low-level debugging on BCM2835 PL011 UART"
 106                 depends on ARCH_BCM2835
 107                 select DEBUG_UART_PL01X
 108
 109         config DEBUG_BCM_5301X
 110                 bool "Kernel low-level debugging on BCM5301X UART1"
 111                 depends on ARCH_BCM_5301X
 112                 select DEBUG_UART_PL01X
 113
 114         config DEBUG_BCM_KONA_UART
 115                 bool "Kernel low-level debugging messages via BCM KONA UART"
 116                 depends on ARCH_BCM_MOBILE
 117                 select DEBUG_UART_8250
 118                 help
 119                   Say Y here if you want kernel low-level debugging support
 120                   on Broadcom SoC platforms.
 121                   This low level debug works for Broadcom
 122                   mobile SoCs in the Kona family of chips (e.g. bcm28155,
 123                   bcm11351, etc...)
 124
 125         config DEBUG_BERLIN_UART
 126                 bool "Marvell Berlin SoC Debug UART"
 127                 depends on ARCH_BERLIN
 128                 select DEBUG_UART_8250
 129                 help
 130                   Say Y here if you want kernel low-level debugging support
 131                   on Marvell Berlin SoC based platforms.
 132
 133         config DEBUG_CLPS711X_UART1
 134                 bool "Kernel low-level debugging messages via UART1"
 135                 depends on ARCH_CLPS711X
 136                 help
 137                   Say Y here if you want the debug print routines to direct
 138                   their output to the first serial port on these devices.
 139
 140         config DEBUG_CLPS711X_UART2
 141                 bool "Kernel low-level debugging messages via UART2"
 142                 depends on ARCH_CLPS711X
 143                 help
 144                   Say Y here if you want the debug print routines to direct
 145                   their output to the second serial port on these devices.
 146
 147         config DEBUG_CNS3XXX
 148                 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
 149                 depends on ARCH_CNS3XXX
 150                 select DEBUG_UART_PL01X
 151                 help
 152                   Say Y here if you want the debug print routines to direct
 153                   their output to the CNS3xxx UART0.
 154
 155         config DEBUG_DAVINCI_DA8XX_UART1
 156                 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
 157                 depends on ARCH_DAVINCI_DA8XX
 158                 select DEBUG_UART_8250
 159                 help
 160                   Say Y here if you want the debug print routines to direct
 161                   their output to UART1 serial port on DaVinci DA8XX devices.
 162
 163         config DEBUG_DAVINCI_DA8XX_UART2
 164                 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
 165                 depends on ARCH_DAVINCI_DA8XX
 166                 select DEBUG_UART_8250
 167                 help
 168                   Say Y here if you want the debug print routines to direct
 169                   their output to UART2 serial port on DaVinci DA8XX devices.
 170
 171         config DEBUG_DAVINCI_DMx_UART0
 172                 bool "Kernel low-level debugging on DaVinci DMx using UART0"
 173                 depends on ARCH_DAVINCI_DMx
 174                 select DEBUG_UART_8250
 175                 help
 176                   Say Y here if you want the debug print routines to direct
 177                   their output to UART0 serial port on DaVinci DMx devices.
 178
 179         config DEBUG_ZYNQ_UART0
 180                 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
 181                 depends on ARCH_ZYNQ
 182                 help
 183                   Say Y here if you want the debug print routines to direct
 184                   their output to UART0 on the Zynq platform.
 185
 186         config DEBUG_ZYNQ_UART1
 187                 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
 188                 depends on ARCH_ZYNQ
 189                 help
 190                   Say Y here if you want the debug print routines to direct
 191                   their output to UART1 on the Zynq platform.
 192
 193                   If you have a ZC702 board and want early boot messages to
 194                   appear on the USB serial adaptor, select this option.
 195
 196         config DEBUG_DC21285_PORT
 197                 bool "Kernel low-level debugging messages via footbridge serial port"
 198                 depends on FOOTBRIDGE
 199                 help
 200                   Say Y here if you want the debug print routines to direct
 201                   their output to the serial port in the DC21285 (Footbridge).
 202
 203         config DEBUG_FOOTBRIDGE_COM1
 204                 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
 205                 depends on FOOTBRIDGE
 206                 help
 207                   Say Y here if you want the debug print routines to direct
 208                   their output to the 8250 at PCI COM1.
 209
 210         config DEBUG_HI3620_UART
 211                 bool "Hisilicon HI3620 Debug UART"
 212                 depends on ARCH_HI3xxx
 213                 select DEBUG_UART_PL01X
 214                 help
 215                   Say Y here if you want kernel low-level debugging support
 216                   on HI3620 UART.
 217
 218         config DEBUG_HI3716_UART
 219                 bool "Hisilicon Hi3716 Debug UART"
 220                 depends on ARCH_HI3xxx
 221                 select DEBUG_UART_PL01X
 222                 help
 223                   Say Y here if you want kernel low-level debugging support
 224                   on HI3716 UART.
 225
 226         config DEBUG_HIGHBANK_UART
 227                 bool "Kernel low-level debugging messages via Highbank UART"
 228                 depends on ARCH_HIGHBANK
 229                 select DEBUG_UART_PL01X
 230                 help
 231                   Say Y here if you want the debug print routines to direct
 232                   their output to the UART on Highbank based devices.
 233
 234         config DEBUG_IMX1_UART
 235                 bool "i.MX1 Debug UART"
 236                 depends on SOC_IMX1
 237                 help
 238                   Say Y here if you want kernel low-level debugging support
 239                   on i.MX1.
 240
 241         config DEBUG_IMX23_UART
 242                 bool "i.MX23 Debug UART"
 243                 depends on SOC_IMX23
 244                 select DEBUG_UART_PL01X
 245                 help
 246                   Say Y here if you want kernel low-level debugging support
 247                   on i.MX23.
 248
 249         config DEBUG_IMX25_UART
 250                 bool "i.MX25 Debug UART"
 251                 depends on SOC_IMX25
 252                 help
 253                   Say Y here if you want kernel low-level debugging support
 254                   on i.MX25.
 255
 256         config DEBUG_IMX21_IMX27_UART
 257                 bool "i.MX21 and i.MX27 Debug UART"
 258                 depends on SOC_IMX21 || SOC_IMX27
 259                 help
 260                   Say Y here if you want kernel low-level debugging support
 261                   on i.MX21 or i.MX27.
 262
 263         config DEBUG_IMX28_UART
 264                 bool "i.MX28 Debug UART"
 265                 depends on SOC_IMX28
 266                 select DEBUG_UART_PL01X
 267                 help
 268                   Say Y here if you want kernel low-level debugging support
 269                   on i.MX28.
 270
 271         config DEBUG_IMX31_UART
 272                 bool "i.MX31 Debug UART"
 273                 depends on SOC_IMX31
 274                 help
 275                   Say Y here if you want kernel low-level debugging support
 276                   on i.MX31.
 277
 278         config DEBUG_IMX35_UART
 279                 bool "i.MX35 Debug UART"
 280                 depends on SOC_IMX35
 281                 help
 282                   Say Y here if you want kernel low-level debugging support
 283                   on i.MX35.
 284
 285         config DEBUG_IMX50_UART
 286                 bool "i.MX50 Debug UART"
 287                 depends on SOC_IMX50
 288                 help
 289                   Say Y here if you want kernel low-level debugging support
 290                   on i.MX50.
 291
 292         config DEBUG_IMX51_UART
 293                 bool "i.MX51 Debug UART"
 294                 depends on SOC_IMX51
 295                 help
 296                   Say Y here if you want kernel low-level debugging support
 297                   on i.MX51.
 298
 299         config DEBUG_IMX53_UART
 300                 bool "i.MX53 Debug UART"
 301                 depends on SOC_IMX53
 302                 help
 303                   Say Y here if you want kernel low-level debugging support
 304                   on i.MX53.
 305
 306         config DEBUG_IMX6Q_UART
 307                 bool "i.MX6Q/DL Debug UART"
 308                 depends on SOC_IMX6Q
 309                 help
 310                   Say Y here if you want kernel low-level debugging support
 311                   on i.MX6Q/DL.
 312
 313         config DEBUG_IMX6SL_UART
 314                 bool "i.MX6SL Debug UART"
 315                 depends on SOC_IMX6SL
 316                 help
 317                   Say Y here if you want kernel low-level debugging support
 318                   on i.MX6SL.
 319
 320         config DEBUG_IMX6SX_UART
 321                 bool "i.MX6SX Debug UART"
 322                 depends on SOC_IMX6SX
 323                 help
 324                   Say Y here if you want kernel low-level debugging support
 325                   on i.MX6SX.
 326
 327         config DEBUG_KEYSTONE_UART0
 328                 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
 329                 depends on ARCH_KEYSTONE
 330                 select DEBUG_UART_8250
 331                 help
 332                   Say Y here if you want the debug print routines to direct
 333                   their output to UART0 serial port on KEYSTONE2 devices.
 334
 335         config DEBUG_KEYSTONE_UART1
 336                 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
 337                 depends on ARCH_KEYSTONE
 338                 select DEBUG_UART_8250
 339                 help
 340                   Say Y here if you want the debug print routines to direct
 341                   their output to UART1 serial port on KEYSTONE2 devices.
 342
 343         config DEBUG_MMP_UART2
 344                 bool "Kernel low-level debugging message via MMP UART2"
 345                 depends on ARCH_MMP
 346                 select DEBUG_UART_8250
 347                 help
 348                   Say Y here if you want kernel low-level debugging support
 349                   on MMP UART2.
 350
 351         config DEBUG_MMP_UART3
 352                 bool "Kernel low-level debugging message via MMP UART3"
 353                 depends on ARCH_MMP
 354                 select DEBUG_UART_8250
 355                 help
 356                   Say Y here if you want kernel low-level debugging support
 357                   on MMP UART3.
 358
 359         config DEBUG_MSM_UART
 360                 bool "Kernel low-level debugging messages via MSM UART"
 361                 depends on ARCH_MSM
 362                 help
 363                   Say Y here if you want the debug print routines to direct
 364                   their output to the serial port on MSM devices.
 365
 366                   ARCH                DEBUG_UART_PHYS   DEBUG_UART_BASE   #
 367                   MSM7X00A, QSD8X50   0xa9a00000        0xe1000000        UART1
 368                   MSM7X00A, QSD8X50   0xa9b00000        0xe1000000        UART2
 369                   MSM7X00A, QSD8X50   0xa9c00000        0xe1000000        UART3
 370
 371                   MSM7X30             0xaca00000        0xe1000000        UART1
 372                   MSM7X30             0xacb00000        0xe1000000        UART2
 373                   MSM7X30             0xacc00000        0xe1000000        UART3
 374
 375                   Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
 376                   options based on your needs.
 377
 378         config DEBUG_QCOM_UARTDM
 379                 bool "Kernel low-level debugging messages via QCOM UARTDM"
 380                 depends on ARCH_QCOM
 381                 help
 382                   Say Y here if you want the debug print routines to direct
 383                   their output to the serial port on Qualcomm devices.
 384
 385                   ARCH      DEBUG_UART_PHYS   DEBUG_UART_BASE
 386                   APQ8084   0xf995e000        0xfa75e000
 387                   MSM8X60   0x19c40000        0xf0040000
 388                   MSM8960   0x16440000        0xf0040000
 389                   MSM8974   0xf991e000        0xfa71e000
 390
 391                   Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
 392                   options based on your needs.
 393
 394         config DEBUG_MVEBU_UART
 395                 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
 396                 depends on ARCH_MVEBU
 397                 select DEBUG_UART_8250
 398                 help
 399                   Say Y here if you want kernel low-level debugging support
 400                   on MVEBU based platforms.
 401
 402                   This option should be used with the old bootloaders
 403                   that left the internal registers mapped at
 404                   0xd0000000. As of today, this is the case on
 405                   platforms such as the Globalscale Mirabox or the
 406                   Plathome OpenBlocks AX3, when using the original
 407                   bootloader.
 408
 409                   If the wrong DEBUG_MVEBU_UART* option is selected,
 410                   when u-boot hands over to the kernel, the system
 411                   silently crashes, with no serial output at all.
 412
 413         config DEBUG_MVEBU_UART_ALTERNATE
 414                 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
 415                 depends on ARCH_MVEBU
 416                 select DEBUG_UART_8250
 417                 help
 418                   Say Y here if you want kernel low-level debugging support
 419                   on MVEBU based platforms.
 420
 421                   This option should be used with the new bootloaders
 422                   that remap the internal registers at 0xf1000000.
 423
 424                   If the wrong DEBUG_MVEBU_UART* option is selected,
 425                   when u-boot hands over to the kernel, the system
 426                   silently crashes, with no serial output at all.
 427
 428         config DEBUG_VF_UART
 429                 bool "Vybrid UART"
 430                 depends on SOC_VF610
 431                 help
 432                   Say Y here if you want kernel low-level debugging support
 433                   on Vybrid based platforms.
 434
 435         config DEBUG_NOMADIK_UART
 436                 bool "Kernel low-level debugging messages via NOMADIK UART"
 437                 depends on ARCH_NOMADIK
 438                 select DEBUG_UART_PL01X
 439                 help
 440                   Say Y here if you want kernel low-level debugging support
 441                   on NOMADIK based platforms.
 442
 443         config DEBUG_NSPIRE_CLASSIC_UART
 444                 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
 445                 depends on ARCH_NSPIRE
 446                 select DEBUG_UART_8250
 447                 help
 448                   Say Y here if you want kernel low-level debugging support
 449                   on TI-NSPIRE classic models.
 450
 451         config DEBUG_NSPIRE_CX_UART
 452                 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
 453                 depends on ARCH_NSPIRE
 454                 select DEBUG_UART_PL01X
 455                 help
 456                   Say Y here if you want kernel low-level debugging support
 457                   on TI-NSPIRE CX models.
 458
 459         config DEBUG_OMAP2UART1
 460                 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
 461                 depends on ARCH_OMAP2PLUS
 462                 select DEBUG_OMAP2PLUS_UART
 463                 help
 464                   This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
 465                   omap3 torpedo and 3530 lv som.
 466
 467         config DEBUG_OMAP2UART2
 468                 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
 469                 depends on ARCH_OMAP2PLUS
 470                 select DEBUG_OMAP2PLUS_UART
 471
 472         config DEBUG_OMAP2UART3
 473                 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
 474                 depends on ARCH_OMAP2PLUS
 475                 select DEBUG_OMAP2PLUS_UART
 476
 477         config DEBUG_OMAP3UART3
 478                 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
 479                 depends on ARCH_OMAP2PLUS
 480                 select DEBUG_OMAP2PLUS_UART
 481                 help
 482                   This covers at least cm_t3x, beagle, crane, devkit8000,
 483                   igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
 484                   and 3517evm.
 485
 486         config DEBUG_OMAP4UART3
 487                 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
 488                 depends on ARCH_OMAP2PLUS
 489                 select DEBUG_OMAP2PLUS_UART
 490
 491         config DEBUG_OMAP3UART4
 492                 bool "Kernel low-level debugging messages via OMAP36XX UART4"
 493                 depends on ARCH_OMAP2PLUS
 494                 select DEBUG_OMAP2PLUS_UART
 495
 496         config DEBUG_OMAP4UART4
 497                 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
 498                 depends on ARCH_OMAP2PLUS
 499                 select DEBUG_OMAP2PLUS_UART
 500
 501         config DEBUG_TI81XXUART1
 502                 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
 503                 depends on ARCH_OMAP2PLUS
 504                 select DEBUG_OMAP2PLUS_UART
 505
 506         config DEBUG_TI81XXUART2
 507                 bool "Kernel low-level debugging messages via TI81XX UART2"
 508                 depends on ARCH_OMAP2PLUS
 509                 select DEBUG_OMAP2PLUS_UART
 510
 511         config DEBUG_TI81XXUART3
 512                 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
 513                 depends on ARCH_OMAP2PLUS
 514                 select DEBUG_OMAP2PLUS_UART
 515
 516         config DEBUG_AM33XXUART1
 517                 bool "Kernel low-level debugging messages via AM33XX UART1"
 518                 depends on ARCH_OMAP2PLUS
 519                 select DEBUG_OMAP2PLUS_UART
 520
 521         config DEBUG_ZOOM_UART
 522                 bool "Kernel low-level debugging messages via Zoom2/3 UART"
 523                 depends on ARCH_OMAP2PLUS
 524                 select DEBUG_OMAP2PLUS_UART
 525
 526         config DEBUG_PICOXCELL_UART
 527                 depends on ARCH_PICOXCELL
 528                 bool "Use PicoXcell UART for low-level debug"
 529                 select DEBUG_UART_8250
 530                 help
 531                   Say Y here if you want kernel low-level debugging support
 532                   on PicoXcell based platforms.
 533
 534         config DEBUG_PXA_UART1
 535                 depends on ARCH_PXA
 536                 bool "Use PXA UART1 for low-level debug"
 537                 select DEBUG_UART_8250
 538                 help
 539                   Say Y here if you want kernel low-level debugging support
 540                   on PXA UART1.
 541
 542         config DEBUG_REALVIEW_STD_PORT
 543                 bool "RealView Default UART"
 544                 depends on ARCH_REALVIEW
 545                 select DEBUG_UART_PL01X
 546                 help
 547                   Say Y here if you want the debug print routines to direct
 548                   their output to the serial port on RealView EB, PB11MP, PBA8
 549                   and PBX platforms.
 550
 551         config DEBUG_REALVIEW_PB1176_PORT
 552                 bool "RealView PB1176 UART"
 553                 depends on MACH_REALVIEW_PB1176
 554                 select DEBUG_UART_PL01X
 555                 help
 556                   Say Y here if you want the debug print routines to direct
 557                   their output to the standard serial port on the RealView
 558                   PB1176 platform.
 559
 560         config DEBUG_RK29_UART0
 561                 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
 562                 depends on ARCH_ROCKCHIP
 563                 select DEBUG_UART_8250
 564                 help
 565                   Say Y here if you want kernel low-level debugging support
 566                   on Rockchip based platforms.
 567
 568         config DEBUG_RK29_UART1
 569                 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
 570                 depends on ARCH_ROCKCHIP
 571                 select DEBUG_UART_8250
 572                 help
 573                   Say Y here if you want kernel low-level debugging support
 574                   on Rockchip based platforms.
 575
 576         config DEBUG_RK29_UART2
 577                 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
 578                 depends on ARCH_ROCKCHIP
 579                 select DEBUG_UART_8250
 580                 help
 581                   Say Y here if you want kernel low-level debugging support
 582                   on Rockchip based platforms.
 583
 584         config DEBUG_RK3X_UART0
 585                 bool "Kernel low-level debugging messages via Rockchip RK3X UART0"
 586                 depends on ARCH_ROCKCHIP
 587                 select DEBUG_UART_8250
 588                 help
 589                   Say Y here if you want kernel low-level debugging support
 590                   on Rockchip based platforms.
 591
 592         config DEBUG_RK3X_UART1
 593                 bool "Kernel low-level debugging messages via Rockchip RK3X UART1"
 594                 depends on ARCH_ROCKCHIP
 595                 select DEBUG_UART_8250
 596                 help
 597                   Say Y here if you want kernel low-level debugging support
 598                   on Rockchip based platforms.
 599
 600         config DEBUG_RK3X_UART2
 601                 bool "Kernel low-level debugging messages via Rockchip RK3X UART2"
 602                 depends on ARCH_ROCKCHIP
 603                 select DEBUG_UART_8250
 604                 help
 605                   Say Y here if you want kernel low-level debugging support
 606                   on Rockchip based platforms.
 607
 608         config DEBUG_RK3X_UART3
 609                 bool "Kernel low-level debugging messages via Rockchip RK3X UART3"
 610                 depends on ARCH_ROCKCHIP
 611                 select DEBUG_UART_8250
 612                 help
 613                   Say Y here if you want kernel low-level debugging support
 614                   on Rockchip based platforms.
 615
 616         config DEBUG_S3C_UART0
 617                 depends on PLAT_SAMSUNG
 618                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 619                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
 620                 bool "Use S3C UART 0 for low-level debug"
 621                 help
 622                   Say Y here if you want the debug print routines to direct
 623                   their output to UART 0. The port must have been initialised
 624                   by the boot-loader before use.
 625
 626                   The uncompressor code port configuration is now handled
 627                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 628
 629         config DEBUG_S3C_UART1
 630                 depends on PLAT_SAMSUNG
 631                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 632                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
 633                 bool "Use S3C UART 1 for low-level debug"
 634                 help
 635                   Say Y here if you want the debug print routines to direct
 636                   their output to UART 1. The port must have been initialised
 637                   by the boot-loader before use.
 638
 639                   The uncompressor code port configuration is now handled
 640                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 641
 642         config DEBUG_S3C_UART2
 643                 depends on PLAT_SAMSUNG
 644                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 645                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
 646                 bool "Use S3C UART 2 for low-level debug"
 647                 help
 648                   Say Y here if you want the debug print routines to direct
 649                   their output to UART 2. The port must have been initialised
 650                   by the boot-loader before use.
 651
 652                   The uncompressor code port configuration is now handled
 653                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 654
 655         config DEBUG_S3C_UART3
 656                 depends on PLAT_SAMSUNG && ARCH_EXYNOS
 657                 select DEBUG_EXYNOS_UART
 658                 bool "Use S3C UART 3 for low-level debug"
 659                 help
 660                   Say Y here if you want the debug print routines to direct
 661                   their output to UART 3. The port must have been initialised
 662                   by the boot-loader before use.
 663
 664                   The uncompressor code port configuration is now handled
 665                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 666
 667         config DEBUG_S3C2410_UART0
 668                 depends on ARCH_S3C24XX
 669                 select DEBUG_S3C2410_UART
 670                 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
 671                 help
 672                   Say Y here if you want the debug print routines to direct
 673                   their output to UART 0. The port must have been initialised
 674                   by the boot-loader before use.
 675
 676         config DEBUG_S3C2410_UART1
 677                 depends on ARCH_S3C24XX
 678                 select DEBUG_S3C2410_UART
 679                 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
 680                 help
 681                   Say Y here if you want the debug print routines to direct
 682                   their output to UART 1. The port must have been initialised
 683                   by the boot-loader before use.
 684
 685         config DEBUG_S3C2410_UART2
 686                 depends on ARCH_S3C24XX
 687                 select DEBUG_S3C2410_UART
 688                 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
 689                 help
 690                   Say Y here if you want the debug print routines to direct
 691                   their output to UART 2. The port must have been initialised
 692                   by the boot-loader before use.
 693
 694         config DEBUG_SOCFPGA_UART
 695                 depends on ARCH_SOCFPGA
 696                 bool "Use SOCFPGA UART for low-level debug"
 697                 select DEBUG_UART_8250
 698                 help
 699                   Say Y here if you want kernel low-level debugging support
 700                   on SOCFPGA based platforms.
 701
 702         config DEBUG_SUNXI_UART0
 703                 bool "Kernel low-level debugging messages via sunXi UART0"
 704                 depends on ARCH_SUNXI
 705                 select DEBUG_UART_8250
 706                 help
 707                   Say Y here if you want kernel low-level debugging support
 708                   on Allwinner A1X based platforms on the UART0.
 709
 710         config DEBUG_SUNXI_UART1
 711                 bool "Kernel low-level debugging messages via sunXi UART1"
 712                 depends on ARCH_SUNXI
 713                 select DEBUG_UART_8250
 714                 help
 715                   Say Y here if you want kernel low-level debugging support
 716                   on Allwinner A1X based platforms on the UART1.
 717
 718         config DEBUG_SUNXI_R_UART
 719                 bool "Kernel low-level debugging messages via sunXi R_UART"
 720                 depends on MACH_SUN6I || MACH_SUN8I
 721                 select DEBUG_UART_8250
 722                 help
 723                   Say Y here if you want kernel low-level debugging support
 724                   on Allwinner A31/A23 based platforms on the R_UART.
 725
 726         config TEGRA_DEBUG_UART_AUTO_ODMDATA
 727                 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
 728                 depends on ARCH_TEGRA
 729                 select DEBUG_TEGRA_UART
 730                 help
 731                   Automatically determines which UART to use for low-level
 732                   debug based on the ODMDATA value. This value is part of
 733                   the BCT, and is written to the boot memory device using
 734                   nvflash, or other flashing tool.  When bits 19:18 are 3,
 735                   then bits 17:15 indicate which UART to use; 0/1/2/3/4
 736                   are UART A/B/C/D/E.
 737
 738         config TEGRA_DEBUG_UARTA
 739                 bool "Kernel low-level debugging messages via Tegra UART A"
 740                 depends on ARCH_TEGRA
 741                 select DEBUG_TEGRA_UART
 742                 help
 743                   Say Y here if you want kernel low-level debugging support
 744                   on Tegra based platforms.
 745
 746         config TEGRA_DEBUG_UARTB
 747                 bool "Kernel low-level debugging messages via Tegra UART B"
 748                 depends on ARCH_TEGRA
 749                 select DEBUG_TEGRA_UART
 750                 help
 751                   Say Y here if you want kernel low-level debugging support
 752                   on Tegra based platforms.
 753
 754         config TEGRA_DEBUG_UARTC
 755                 bool "Kernel low-level debugging messages via Tegra UART C"
 756                 depends on ARCH_TEGRA
 757                 select DEBUG_TEGRA_UART
 758                 help
 759                   Say Y here if you want kernel low-level debugging support
 760                   on Tegra based platforms.
 761
 762         config TEGRA_DEBUG_UARTD
 763                 bool "Kernel low-level debugging messages via Tegra UART D"
 764                 depends on ARCH_TEGRA
 765                 select DEBUG_TEGRA_UART
 766                 help
 767                   Say Y here if you want kernel low-level debugging support
 768                   on Tegra based platforms.
 769
 770         config TEGRA_DEBUG_UARTE
 771                 bool "Kernel low-level debugging messages via Tegra UART E"
 772                 depends on ARCH_TEGRA
 773                 select DEBUG_TEGRA_UART
 774                 help
 775                   Say Y here if you want kernel low-level debugging support
 776                   on Tegra based platforms.
 777
 778         config DEBUG_SIRFPRIMA2_UART1
 779                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
 780                 depends on ARCH_PRIMA2
 781                 help
 782                   Say Y here if you want the debug print routines to direct
 783                   their output to the uart1 port on SiRFprimaII devices.
 784
 785         config DEBUG_SIRFMARCO_UART1
 786                 bool "Kernel low-level debugging messages via SiRFmarco UART1"
 787                 depends on ARCH_MARCO
 788                 help
 789                   Say Y here if you want the debug print routines to direct
 790                   their output to the uart1 port on SiRFmarco devices.
 791
 792         config STIH41X_DEBUG_ASC2
 793                 bool "Use StiH415/416 ASC2 UART for low-level debug"
 794                 depends on ARCH_STI
 795                 select DEBUG_STI_UART
 796                 help
 797                   Say Y here if you want kernel low-level debugging support
 798                   on STiH415/416 based platforms like b2000, which has
 799                   default UART wired up to ASC2.
 800
 801                   If unsure, say N.
 802
 803         config STIH41X_DEBUG_SBC_ASC1
 804                 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
 805                 depends on ARCH_STI
 806                 select DEBUG_STI_UART
 807                 help
 808                   Say Y here if you want kernel low-level debugging support
 809                   on STiH415/416 based platforms like b2020. which has
 810                   default UART wired up to SBC ASC1.
 811
 812                   If unsure, say N.
 813
 814         config DEBUG_U300_UART
 815                 bool "Kernel low-level debugging messages via U300 UART0"
 816                 depends on ARCH_U300
 817                 select DEBUG_UART_PL01X
 818                 help
 819                   Say Y here if you want the debug print routines to direct
 820                   their output to the uart port on U300 devices.
 821
 822         config DEBUG_UX500_UART
 823                 depends on ARCH_U8500
 824                 bool "Use Ux500 UART for low-level debug"
 825                 help
 826                   Say Y here if you want kernel low-level debugging support
 827                   on Ux500 based platforms.
 828
 829         config DEBUG_VEXPRESS_UART0_DETECT
 830                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
 831                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
 832                 help
 833                   This option enables a simple heuristic which tries to determine
 834                   the motherboard's memory map variant (original or RS1) and then
 835                   choose the relevant UART0 base address.
 836
 837                   Note that this will only work with standard A-class core tiles,
 838                   and may fail with non-standard SMM or custom software models.
 839
 840         config DEBUG_VEXPRESS_UART0_CA9
 841                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
 842                 depends on ARCH_VEXPRESS
 843                 select DEBUG_UART_PL01X
 844                 help
 845                   This option selects UART0 at 0x10009000. Except for custom models,
 846                   this applies only to the V2P-CA9 tile.
 847
 848         config DEBUG_VEXPRESS_UART0_RS1
 849                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
 850                 depends on ARCH_VEXPRESS
 851                 select DEBUG_UART_PL01X
 852                 help
 853                   This option selects UART0 at 0x1c090000. This applies to most
 854                   of the tiles using the RS1 memory map, including all new A-class
 855                   core tiles, FPGA-based SMMs and software models.
 856
 857         config DEBUG_VEXPRESS_UART0_CRX
 858                 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
 859                 depends on ARCH_VEXPRESS && !MMU
 860                 select DEBUG_UART_PL01X
 861                 help
 862                   This option selects UART0 at 0xb0090000. This is appropriate for
 863                   Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
 864
 865         config DEBUG_VT8500_UART0
 866                 bool "Use UART0 on VIA/Wondermedia SoCs"
 867                 depends on ARCH_VT8500
 868                 help
 869                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
 870                   devices, including VT8500, WM8505, WM8650 and WM8850.
 871
 872         config DEBUG_LL_UART_NONE
 873                 bool "No low-level debugging UART"
 874                 depends on !ARCH_MULTIPLATFORM
 875                 help
 876                   Say Y here if your platform doesn't provide a UART option
 877                   above. This relies on your platform choosing the right UART
 878                   definition internally in order for low-level debugging to
 879                   work.
 880
 881         config DEBUG_ICEDCC
 882                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
 883                 help
 884                   Say Y here if you want the debug print routines to direct
 885                   their output to the EmbeddedICE macrocell's DCC channel using
 886                   co-processor 14. This is known to work on the ARM9 style ICE
 887                   channel and on the XScale with the PEEDI.
 888
 889                   Note that the system will appear to hang during boot if there
 890                   is nothing connected to read from the DCC.
 891
 892         config DEBUG_SEMIHOSTING
 893                 bool "Kernel low-level debug output via semihosting I/O"
 894                 help
 895                   Semihosting enables code running on an ARM target to use
 896                   the I/O facilities on a host debugger/emulator through a
 897                   simple SVC call. The host debugger or emulator must have
 898                   semihosting enabled for the special svc call to be trapped
 899                   otherwise the kernel will crash.
 900
 901                   This is known to work with OpenOCD, as well as
 902                   ARM's Fast Models, or any other controlling environment
 903                   that implements semihosting.
 904
 905                   For more details about semihosting, please see
 906                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
 907
 908         config DEBUG_LL_UART_8250
 909                 bool "Kernel low-level debugging via 8250 UART"
 910                 help
 911                   Say Y here if you wish the debug print routes to direct
 912                   their output to an 8250 UART.  You can use this option
 913                   to provide the parameters for the 8250 UART rather than
 914                   selecting one of the platform specific options above if
 915                   you know the parameters for the port.
 916
 917                   This option is preferred over the platform specific
 918                   options; the platform specific options are deprecated
 919                   and will be soon removed.
 920
 921         config DEBUG_LL_UART_EFM32
 922                 bool "Kernel low-level debugging via efm32 UART"
 923                 depends on ARCH_EFM32
 924                 help
 925                   Say Y here if you want the debug print routines to direct
 926                   their output to an UART or USART port on efm32 based
 927                   machines. Use the following addresses for DEBUG_UART_PHYS:
 928
 929                     0x4000c000 | USART0
 930                     0x4000c400 | USART1
 931                     0x4000c800 | USART2
 932                     0x4000e000 | UART0
 933                     0x4000e400 | UART1
 934
 935         config DEBUG_LL_UART_PL01X
 936                 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
 937                 help
 938                   Say Y here if you wish the debug print routes to direct
 939                   their output to a PL01x Primecell UART.  You can use
 940                   this option to provide the parameters for the UART
 941                   rather than selecting one of the platform specific
 942                   options above if you know the parameters for the port.
 943
 944                   This option is preferred over the platform specific
 945                   options; the platform specific options are deprecated
 946                   and will be soon removed.
 947
 948 endchoice
 949
 950 config DEBUG_EXYNOS_UART
 951         bool
 952
 953 config DEBUG_S3C2410_UART
 954         bool
 955         select DEBUG_S3C24XX_UART
 956
 957 config DEBUG_S3C24XX_UART
 958         bool
 959
 960 config DEBUG_OMAP2PLUS_UART
 961         bool
 962         depends on ARCH_OMAP2PLUS
 963
 964 config DEBUG_IMX_UART_PORT
 965         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
 966                                                 DEBUG_IMX25_UART || \
 967                                                 DEBUG_IMX21_IMX27_UART || \
 968                                                 DEBUG_IMX31_UART || \
 969                                                 DEBUG_IMX35_UART || \
 970                                                 DEBUG_IMX50_UART || \
 971                                                 DEBUG_IMX51_UART || \
 972                                                 DEBUG_IMX53_UART || \
 973                                                 DEBUG_IMX6Q_UART || \
 974                                                 DEBUG_IMX6SL_UART || \
 975                                                 DEBUG_IMX6SX_UART
 976         default 1
 977         depends on ARCH_MXC
 978         help
 979           Choose UART port on which kernel low-level debug messages
 980           should be output.
 981
 982 config DEBUG_VF_UART_PORT
 983         int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
 984         default 1
 985         range 0 3
 986         depends on SOC_VF610
 987         help
 988           Choose UART port on which kernel low-level debug messages
 989           should be output.
 990
 991 config DEBUG_TEGRA_UART
 992         bool
 993         depends on ARCH_TEGRA
 994
 995 config DEBUG_STI_UART
 996         bool
 997         depends on ARCH_STI
 998
 999 config DEBUG_LL_INCLUDE
1000         string
1001         default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1002         default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1003         default "debug/exynos.S" if DEBUG_EXYNOS_UART
1004         default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1005         default "debug/icedcc.S" if DEBUG_ICEDCC
1006         default "debug/imx.S" if DEBUG_IMX1_UART || \
1007                                  DEBUG_IMX25_UART || \
1008                                  DEBUG_IMX21_IMX27_UART || \
1009                                  DEBUG_IMX31_UART || \
1010                                  DEBUG_IMX35_UART || \
1011                                  DEBUG_IMX50_UART || \
1012                                  DEBUG_IMX51_UART || \
1013                                  DEBUG_IMX53_UART ||\
1014                                  DEBUG_IMX6Q_UART || \
1015                                  DEBUG_IMX6SL_UART || \
1016                                  DEBUG_IMX6SX_UART
1017         default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1018         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1019         default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1020         default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1021         default "debug/sti.S" if DEBUG_STI_UART
1022         default "debug/tegra.S" if DEBUG_TEGRA_UART
1023         default "debug/ux500.S" if DEBUG_UX500_UART
1024         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1025         default "debug/vf.S" if DEBUG_VF_UART
1026         default "debug/vt8500.S" if DEBUG_VT8500_UART0
1027         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1028         default "mach/debug-macro.S"
1029
1030 # Compatibility options for PL01x
1031 config DEBUG_UART_PL01X
1032         def_bool ARCH_EP93XX || \
1033                 ARCH_INTEGRATOR || \
1034                 ARCH_SPEAR3XX || \
1035                 ARCH_SPEAR6XX || \
1036                 ARCH_SPEAR13XX || \
1037                 ARCH_VERSATILE
1038
1039 # Compatibility options for 8250
1040 config DEBUG_UART_8250
1041         def_bool ARCH_DOVE || ARCH_EBSA110 || \
1042                 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1043                 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1044                 ARCH_IOP33X || ARCH_IXP4XX || \
1045                 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1046
1047 config DEBUG_UART_PHYS
1048         hex "Physical base address of debug UART"
1049         default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1050         default 0x01c28000 if DEBUG_SUNXI_UART0
1051         default 0x01c28400 if DEBUG_SUNXI_UART1
1052         default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1053         default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1054         default 0x01f02800 if DEBUG_SUNXI_R_UART
1055         default 0x02530c00 if DEBUG_KEYSTONE_UART0
1056         default 0x02531000 if DEBUG_KEYSTONE_UART1
1057         default 0x03010fe0 if ARCH_RPC
1058         default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
1059                                 DEBUG_VEXPRESS_UART0_CA9
1060         default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1061         default 0x10124000 if DEBUG_RK3X_UART0
1062         default 0x10126000 if DEBUG_RK3X_UART1
1063         default 0x101f1000 if ARCH_VERSATILE
1064         default 0x101fb000 if DEBUG_NOMADIK_UART
1065         default 0x16000000 if ARCH_INTEGRATOR
1066         default 0x18000300 if DEBUG_BCM_5301X
1067         default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1068         default 0x20060000 if DEBUG_RK29_UART0
1069         default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1070         default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1071         default 0x20201000 if DEBUG_BCM2835
1072         default 0x3e000000 if DEBUG_BCM_KONA_UART
1073         default 0x4000e400 if DEBUG_LL_UART_EFM32
1074         default 0x40090000 if ARCH_LPC32XX
1075         default 0x40100000 if DEBUG_PXA_UART1
1076         default 0x42000000 if ARCH_GEMINI
1077         default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1078                                 DEBUG_S3C2410_UART0)
1079         default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1080                                 DEBUG_S3C2410_UART1)
1081         default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1082                                 DEBUG_S3C2410_UART2)
1083         default 0x7c0003f8 if FOOTBRIDGE
1084         default 0x80070000 if DEBUG_IMX23_UART
1085         default 0x80074000 if DEBUG_IMX28_UART
1086         default 0x80230000 if DEBUG_PICOXCELL_UART
1087         default 0x808c0000 if ARCH_EP93XX
1088         default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1089         default 0xa9a00000 if DEBUG_MSM_UART
1090         default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1091         default 0xc0013000 if DEBUG_U300_UART
1092         default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1093         default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1094         default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1095         default 0xd0012000 if DEBUG_MVEBU_UART
1096         default 0xd4017000 if DEBUG_MMP_UART2
1097         default 0xd4018000 if DEBUG_MMP_UART3
1098         default 0xe0000000 if ARCH_SPEAR13XX
1099         default 0xf0000be0 if ARCH_EBSA110
1100         default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1101         default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1102                                 ARCH_ORION5X
1103         default 0xf7fc9000 if DEBUG_BERLIN_UART
1104         default 0xf8b00000 if DEBUG_HI3716_UART
1105         default 0xf991e000 if DEBUG_QCOM_UARTDM
1106         default 0xfcb00000 if DEBUG_HI3620_UART
1107         default 0xfe800000 if ARCH_IOP32X
1108         default 0xffc02000 if DEBUG_SOCFPGA_UART
1109         default 0xffd82340 if ARCH_IOP13XX
1110         default 0xfff36000 if DEBUG_HIGHBANK_UART
1111         default 0xfffff700 if ARCH_IOP33X
1112         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1113                 DEBUG_LL_UART_EFM32 || \
1114                 DEBUG_UART_8250 || DEBUG_UART_PL01X || \
1115                 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART
1116
1117 config DEBUG_UART_VIRT
1118         hex "Virtual base address of debug UART"
1119         default 0xe0010fe0 if ARCH_RPC
1120         default 0xe1000000 if DEBUG_MSM_UART
1121         default 0xf0000be0 if ARCH_EBSA110
1122         default 0xf0009000 if DEBUG_CNS3XXX
1123         default 0xf01fb000 if DEBUG_NOMADIK_UART
1124         default 0xf0201000 if DEBUG_BCM2835
1125         default 0xf1000300 if DEBUG_BCM_5301X
1126         default 0xf11f1000 if ARCH_VERSATILE
1127         default 0xf1600000 if ARCH_INTEGRATOR
1128         default 0xf1c28000 if DEBUG_SUNXI_UART0
1129         default 0xf1c28400 if DEBUG_SUNXI_UART1
1130         default 0xf1f02800 if DEBUG_SUNXI_R_UART
1131         default 0xf2100000 if DEBUG_PXA_UART1
1132         default 0xf4090000 if ARCH_LPC32XX
1133         default 0xf4200000 if ARCH_GEMINI
1134         default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1135                                 DEBUG_S3C2410_UART0)
1136         default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1137                                 DEBUG_S3C2410_UART1)
1138         default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1139                                 DEBUG_S3C2410_UART2)
1140         default 0xf7fc9000 if DEBUG_BERLIN_UART
1141         default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1142         default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1143         default 0xfa71e000 if DEBUG_QCOM_UARTDM
1144         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1145         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1146         default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1147         default 0xfd000000 if ARCH_SPEAR13XX
1148         default 0xfd012000 if ARCH_MV78XX0
1149         default 0xfde12000 if ARCH_DOVE
1150         default 0xfe012000 if ARCH_ORION5X
1151         default 0xfe017000 if DEBUG_MMP_UART2
1152         default 0xfe018000 if DEBUG_MMP_UART3
1153         default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1154         default 0xfe230000 if DEBUG_PICOXCELL_UART
1155         default 0xfe300000 if DEBUG_BCM_KONA_UART
1156         default 0xfe800000 if ARCH_IOP32X
1157         default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
1158         default 0xfeb24000 if DEBUG_RK3X_UART0
1159         default 0xfeb26000 if DEBUG_RK3X_UART1
1160         default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1161         default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1162         default 0xfec02000 if DEBUG_SOCFPGA_UART
1163         default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1164         default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1165         default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1166         default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1167         default 0xfed60000 if DEBUG_RK29_UART0
1168         default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1169         default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1170         default 0xfedc0000 if ARCH_EP93XX
1171         default 0xfee003f8 if FOOTBRIDGE
1172         default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1173         default 0xfee82340 if ARCH_IOP13XX
1174         default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1175         default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1176         default 0xfef36000 if DEBUG_HIGHBANK_UART
1177         default 0xfefff700 if ARCH_IOP33X
1178         default 0xff003000 if DEBUG_U300_UART
1179         default DEBUG_UART_PHYS if !MMU
1180         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1181                 DEBUG_UART_8250 || DEBUG_UART_PL01X || \
1182                 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART
1183
1184 config DEBUG_UART_8250_SHIFT
1185         int "Register offset shift for the 8250 debug UART"
1186         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1187         default 0 if FOOTBRIDGE || ARCH_IOP32X
1188         default 2
1189
1190 config DEBUG_UART_8250_WORD
1191         bool "Use 32-bit accesses for 8250 UART"
1192         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1193         depends on DEBUG_UART_8250_SHIFT >= 2
1194         default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1195                 ARCH_KEYSTONE || \
1196                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1197                 DEBUG_DAVINCI_DA8XX_UART2 || \
1198                 DEBUG_BCM_KONA_UART
1199
1200 config DEBUG_UART_8250_FLOW_CONTROL
1201         bool "Enable flow control for 8250 UART"
1202         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1203         default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1204
1205 config DEBUG_UNCOMPRESS
1206         bool
1207         depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1208         default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1209                      (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1210         help
1211           This option influences the normal decompressor output for
1212           multiplatform kernels.  Normally, multiplatform kernels disable
1213           decompressor output because it is not possible to know where to
1214           send the decompressor output.
1215
1216           When this option is set, the selected DEBUG_LL output method
1217           will be re-used for normal decompressor output on multiplatform
1218           kernels.
1219
1220
1221 config UNCOMPRESS_INCLUDE
1222         string
1223         default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1224                                         PLAT_SAMSUNG || ARCH_EFM32
1225         default "mach/uncompress.h"
1226
1227 config EARLY_PRINTK
1228         bool "Early printk"
1229         depends on DEBUG_LL
1230         help
1231           Say Y here if you want to have an early console using the
1232           kernel low-level debugging functions. Add earlyprintk to your
1233           kernel parameters to enable this console.
1234
1235 config OC_ETM
1236         bool "On-chip ETM and ETB"
1237         depends on ARM_AMBA
1238         help
1239           Enables the on-chip embedded trace macrocell and embedded trace
1240           buffer driver that will allow you to collect traces of the
1241           kernel code.
1242
1243 config ARM_KPROBES_TEST
1244         tristate "Kprobes test module"
1245         depends on KPROBES && MODULES
1246         help
1247           Perform tests of kprobes API and instruction set simulation.
1248
1249 config PID_IN_CONTEXTIDR
1250         bool "Write the current PID to the CONTEXTIDR register"
1251         depends on CPU_COPY_V6
1252         help
1253           Enabling this option causes the kernel to write the current PID to
1254           the PROCID field of the CONTEXTIDR register, at the expense of some
1255           additional instructions during context switch. Say Y here only if you
1256           are planning to use hardware trace tools with this kernel.
1257
1258 config DEBUG_SET_MODULE_RONX
1259         bool "Set loadable kernel module data as NX and text as RO"
1260         depends on MODULES
1261         ---help---
1262           This option helps catch unintended modifications to loadable
1263           kernel module's text and read-only data. It also prevents execution
1264           of module data. Such protection may interfere with run-time code
1265           patching and dynamic kernel tracing - and they might also protect
1266           against certain classes of kernel exploits.
1267           If in doubt, say "N".
1268
1269 endmenu