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_KEYSTONE_UART0
 321                 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
 322                 depends on ARCH_KEYSTONE
 323                 select DEBUG_UART_8250
 324                 help
 325                   Say Y here if you want the debug print routines to direct
 326                   their output to UART0 serial port on KEYSTONE2 devices.
 327
 328         config DEBUG_KEYSTONE_UART1
 329                 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
 330                 depends on ARCH_KEYSTONE
 331                 select DEBUG_UART_8250
 332                 help
 333                   Say Y here if you want the debug print routines to direct
 334                   their output to UART1 serial port on KEYSTONE2 devices.
 335
 336         config DEBUG_MMP_UART2
 337                 bool "Kernel low-level debugging message via MMP UART2"
 338                 depends on ARCH_MMP
 339                 select DEBUG_UART_8250
 340                 help
 341                   Say Y here if you want kernel low-level debugging support
 342                   on MMP UART2.
 343
 344         config DEBUG_MMP_UART3
 345                 bool "Kernel low-level debugging message via MMP UART3"
 346                 depends on ARCH_MMP
 347                 select DEBUG_UART_8250
 348                 help
 349                   Say Y here if you want kernel low-level debugging support
 350                   on MMP UART3.
 351
 352         config DEBUG_MSM_UART1
 353                 bool "Kernel low-level debugging messages via MSM UART1"
 354                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 355                 select DEBUG_MSM_UART
 356                 help
 357                   Say Y here if you want the debug print routines to direct
 358                   their output to the first serial port on MSM devices.
 359
 360         config DEBUG_MSM_UART2
 361                 bool "Kernel low-level debugging messages via MSM UART2"
 362                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 363                 select DEBUG_MSM_UART
 364                 help
 365                   Say Y here if you want the debug print routines to direct
 366                   their output to the second serial port on MSM devices.
 367
 368         config DEBUG_MSM_UART3
 369                 bool "Kernel low-level debugging messages via MSM UART3"
 370                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 371                 select DEBUG_MSM_UART
 372                 help
 373                   Say Y here if you want the debug print routines to direct
 374                   their output to the third serial port on MSM devices.
 375
 376         config DEBUG_MSM8660_UART
 377                 bool "Kernel low-level debugging messages via MSM 8660 UART"
 378                 depends on ARCH_MSM8X60
 379                 select MSM_HAS_DEBUG_UART_HS
 380                 select DEBUG_MSM_UART
 381                 help
 382                   Say Y here if you want the debug print routines to direct
 383                   their output to the serial port on MSM 8660 devices.
 384
 385         config DEBUG_MSM8960_UART
 386                 bool "Kernel low-level debugging messages via MSM 8960 UART"
 387                 depends on ARCH_MSM8960
 388                 select MSM_HAS_DEBUG_UART_HS
 389                 select DEBUG_MSM_UART
 390                 help
 391                   Say Y here if you want the debug print routines to direct
 392                   their output to the serial port on MSM 8960 devices.
 393
 394         config DEBUG_MSM8974_UART
 395                 bool "Kernel low-level debugging messages via MSM 8974 UART"
 396                 depends on ARCH_MSM8974
 397                 select MSM_HAS_DEBUG_UART_HS
 398                 select DEBUG_MSM_UART
 399                 help
 400                   Say Y here if you want the debug print routines to direct
 401                   their output to the serial port on MSM 8974 devices.
 402
 403         config DEBUG_MVEBU_UART
 404                 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
 405                 depends on ARCH_MVEBU
 406                 select DEBUG_UART_8250
 407                 help
 408                   Say Y here if you want kernel low-level debugging support
 409                   on MVEBU based platforms.
 410
 411                   This option should be used with the old bootloaders
 412                   that left the internal registers mapped at
 413                   0xd0000000. As of today, this is the case on
 414                   platforms such as the Globalscale Mirabox or the
 415                   Plathome OpenBlocks AX3, when using the original
 416                   bootloader.
 417
 418                   If the wrong DEBUG_MVEBU_UART* option is selected,
 419                   when u-boot hands over to the kernel, the system
 420                   silently crashes, with no serial output at all.
 421
 422         config DEBUG_MVEBU_UART_ALTERNATE
 423                 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
 424                 depends on ARCH_MVEBU
 425                 select DEBUG_UART_8250
 426                 help
 427                   Say Y here if you want kernel low-level debugging support
 428                   on MVEBU based platforms.
 429
 430                   This option should be used with the new bootloaders
 431                   that remap the internal registers at 0xf1000000.
 432
 433                   If the wrong DEBUG_MVEBU_UART* option is selected,
 434                   when u-boot hands over to the kernel, the system
 435                   silently crashes, with no serial output at all.
 436
 437         config DEBUG_VF_UART
 438                 bool "Vybrid UART"
 439                 depends on SOC_VF610
 440                 help
 441                   Say Y here if you want kernel low-level debugging support
 442                   on Vybrid based platforms.
 443
 444         config DEBUG_NOMADIK_UART
 445                 bool "Kernel low-level debugging messages via NOMADIK UART"
 446                 depends on ARCH_NOMADIK
 447                 select DEBUG_UART_PL01X
 448                 help
 449                   Say Y here if you want kernel low-level debugging support
 450                   on NOMADIK based platforms.
 451
 452         config DEBUG_NSPIRE_CLASSIC_UART
 453                 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
 454                 depends on ARCH_NSPIRE
 455                 select DEBUG_UART_8250
 456                 help
 457                   Say Y here if you want kernel low-level debugging support
 458                   on TI-NSPIRE classic models.
 459
 460         config DEBUG_NSPIRE_CX_UART
 461                 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
 462                 depends on ARCH_NSPIRE
 463                 select DEBUG_UART_PL01X
 464                 help
 465                   Say Y here if you want kernel low-level debugging support
 466                   on TI-NSPIRE CX models.
 467
 468         config DEBUG_OMAP2UART1
 469                 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
 470                 depends on ARCH_OMAP2PLUS
 471                 select DEBUG_OMAP2PLUS_UART
 472                 help
 473                   This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
 474                   omap3 torpedo and 3530 lv som.
 475
 476         config DEBUG_OMAP2UART2
 477                 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
 478                 depends on ARCH_OMAP2PLUS
 479                 select DEBUG_OMAP2PLUS_UART
 480
 481         config DEBUG_OMAP2UART3
 482                 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
 483                 depends on ARCH_OMAP2PLUS
 484                 select DEBUG_OMAP2PLUS_UART
 485
 486         config DEBUG_OMAP3UART3
 487                 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
 488                 depends on ARCH_OMAP2PLUS
 489                 select DEBUG_OMAP2PLUS_UART
 490                 help
 491                   This covers at least cm_t3x, beagle, crane, devkit8000,
 492                   igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
 493                   and 3517evm.
 494
 495         config DEBUG_OMAP4UART3
 496                 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
 497                 depends on ARCH_OMAP2PLUS
 498                 select DEBUG_OMAP2PLUS_UART
 499
 500         config DEBUG_OMAP3UART4
 501                 bool "Kernel low-level debugging messages via OMAP36XX UART4"
 502                 depends on ARCH_OMAP2PLUS
 503                 select DEBUG_OMAP2PLUS_UART
 504
 505         config DEBUG_OMAP4UART4
 506                 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
 507                 depends on ARCH_OMAP2PLUS
 508                 select DEBUG_OMAP2PLUS_UART
 509
 510         config DEBUG_TI81XXUART1
 511                 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
 512                 depends on ARCH_OMAP2PLUS
 513                 select DEBUG_OMAP2PLUS_UART
 514
 515         config DEBUG_TI81XXUART2
 516                 bool "Kernel low-level debugging messages via TI81XX UART2"
 517                 depends on ARCH_OMAP2PLUS
 518                 select DEBUG_OMAP2PLUS_UART
 519
 520         config DEBUG_TI81XXUART3
 521                 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
 522                 depends on ARCH_OMAP2PLUS
 523                 select DEBUG_OMAP2PLUS_UART
 524
 525         config DEBUG_AM33XXUART1
 526                 bool "Kernel low-level debugging messages via AM33XX UART1"
 527                 depends on ARCH_OMAP2PLUS
 528                 select DEBUG_OMAP2PLUS_UART
 529
 530         config DEBUG_ZOOM_UART
 531                 bool "Kernel low-level debugging messages via Zoom2/3 UART"
 532                 depends on ARCH_OMAP2PLUS
 533                 select DEBUG_OMAP2PLUS_UART
 534
 535         config DEBUG_PICOXCELL_UART
 536                 depends on ARCH_PICOXCELL
 537                 bool "Use PicoXcell UART for low-level debug"
 538                 select DEBUG_UART_8250
 539                 help
 540                   Say Y here if you want kernel low-level debugging support
 541                   on PicoXcell based platforms.
 542
 543         config DEBUG_PXA_UART1
 544                 depends on ARCH_PXA
 545                 bool "Use PXA UART1 for low-level debug"
 546                 select DEBUG_UART_8250
 547                 help
 548                   Say Y here if you want kernel low-level debugging support
 549                   on PXA UART1.
 550
 551         config DEBUG_REALVIEW_STD_PORT
 552                 bool "RealView Default UART"
 553                 depends on ARCH_REALVIEW
 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 serial port on RealView EB, PB11MP, PBA8
 558                   and PBX platforms.
 559
 560         config DEBUG_REALVIEW_PB1176_PORT
 561                 bool "RealView PB1176 UART"
 562                 depends on MACH_REALVIEW_PB1176
 563                 select DEBUG_UART_PL01X
 564                 help
 565                   Say Y here if you want the debug print routines to direct
 566                   their output to the standard serial port on the RealView
 567                   PB1176 platform.
 568
 569         config DEBUG_RK29_UART0
 570                 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
 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_RK29_UART1
 578                 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
 579                 depends on ARCH_ROCKCHIP
 580                 select DEBUG_UART_8250
 581                 help
 582                   Say Y here if you want kernel low-level debugging support
 583                   on Rockchip based platforms.
 584
 585         config DEBUG_RK29_UART2
 586                 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
 587                 depends on ARCH_ROCKCHIP
 588                 select DEBUG_UART_8250
 589                 help
 590                   Say Y here if you want kernel low-level debugging support
 591                   on Rockchip based platforms.
 592
 593         config DEBUG_RK3X_UART0
 594                 bool "Kernel low-level debugging messages via Rockchip RK3X UART0"
 595                 depends on ARCH_ROCKCHIP
 596                 select DEBUG_UART_8250
 597                 help
 598                   Say Y here if you want kernel low-level debugging support
 599                   on Rockchip based platforms.
 600
 601         config DEBUG_RK3X_UART1
 602                 bool "Kernel low-level debugging messages via Rockchip RK3X UART1"
 603                 depends on ARCH_ROCKCHIP
 604                 select DEBUG_UART_8250
 605                 help
 606                   Say Y here if you want kernel low-level debugging support
 607                   on Rockchip based platforms.
 608
 609         config DEBUG_RK3X_UART2
 610                 bool "Kernel low-level debugging messages via Rockchip RK3X UART2"
 611                 depends on ARCH_ROCKCHIP
 612                 select DEBUG_UART_8250
 613                 help
 614                   Say Y here if you want kernel low-level debugging support
 615                   on Rockchip based platforms.
 616
 617         config DEBUG_RK3X_UART3
 618                 bool "Kernel low-level debugging messages via Rockchip RK3X UART3"
 619                 depends on ARCH_ROCKCHIP
 620                 select DEBUG_UART_8250
 621                 help
 622                   Say Y here if you want kernel low-level debugging support
 623                   on Rockchip based platforms.
 624
 625         config DEBUG_S3C_UART0
 626                 depends on PLAT_SAMSUNG
 627                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 628                 bool "Use S3C UART 0 for low-level debug"
 629                 help
 630                   Say Y here if you want the debug print routines to direct
 631                   their output to UART 0. The port must have been initialised
 632                   by the boot-loader before use.
 633
 634                   The uncompressor code port configuration is now handled
 635                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 636
 637         config DEBUG_S3C_UART1
 638                 depends on PLAT_SAMSUNG
 639                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 640                 bool "Use S3C UART 1 for low-level debug"
 641                 help
 642                   Say Y here if you want the debug print routines to direct
 643                   their output to UART 1. The port must have been initialised
 644                   by the boot-loader before use.
 645
 646                   The uncompressor code port configuration is now handled
 647                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 648
 649         config DEBUG_S3C_UART2
 650                 depends on PLAT_SAMSUNG
 651                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 652                 bool "Use S3C UART 2 for low-level debug"
 653                 help
 654                   Say Y here if you want the debug print routines to direct
 655                   their output to UART 2. The port must have been initialised
 656                   by the boot-loader before use.
 657
 658                   The uncompressor code port configuration is now handled
 659                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 660
 661         config DEBUG_S3C_UART3
 662                 depends on PLAT_SAMSUNG && ARCH_EXYNOS
 663                 select DEBUG_EXYNOS_UART
 664                 bool "Use S3C UART 3 for low-level debug"
 665                 help
 666                   Say Y here if you want the debug print routines to direct
 667                   their output to UART 3. The port must have been initialised
 668                   by the boot-loader before use.
 669
 670                   The uncompressor code port configuration is now handled
 671                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 672
 673         config DEBUG_SOCFPGA_UART
 674                 depends on ARCH_SOCFPGA
 675                 bool "Use SOCFPGA UART for low-level debug"
 676                 select DEBUG_UART_8250
 677                 help
 678                   Say Y here if you want kernel low-level debugging support
 679                   on SOCFPGA based platforms.
 680
 681         config DEBUG_SUNXI_UART0
 682                 bool "Kernel low-level debugging messages via sunXi UART0"
 683                 depends on ARCH_SUNXI
 684                 select DEBUG_UART_8250
 685                 help
 686                   Say Y here if you want kernel low-level debugging support
 687                   on Allwinner A1X based platforms on the UART0.
 688
 689         config DEBUG_SUNXI_UART1
 690                 bool "Kernel low-level debugging messages via sunXi UART1"
 691                 depends on ARCH_SUNXI
 692                 select DEBUG_UART_8250
 693                 help
 694                   Say Y here if you want kernel low-level debugging support
 695                   on Allwinner A1X based platforms on the UART1.
 696
 697         config TEGRA_DEBUG_UART_AUTO_ODMDATA
 698                 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
 699                 depends on ARCH_TEGRA
 700                 select DEBUG_TEGRA_UART
 701                 help
 702                   Automatically determines which UART to use for low-level
 703                   debug based on the ODMDATA value. This value is part of
 704                   the BCT, and is written to the boot memory device using
 705                   nvflash, or other flashing tool.  When bits 19:18 are 3,
 706                   then bits 17:15 indicate which UART to use; 0/1/2/3/4
 707                   are UART A/B/C/D/E.
 708
 709         config TEGRA_DEBUG_UARTA
 710                 bool "Kernel low-level debugging messages via Tegra UART A"
 711                 depends on ARCH_TEGRA
 712                 select DEBUG_TEGRA_UART
 713                 help
 714                   Say Y here if you want kernel low-level debugging support
 715                   on Tegra based platforms.
 716
 717         config TEGRA_DEBUG_UARTB
 718                 bool "Kernel low-level debugging messages via Tegra UART B"
 719                 depends on ARCH_TEGRA
 720                 select DEBUG_TEGRA_UART
 721                 help
 722                   Say Y here if you want kernel low-level debugging support
 723                   on Tegra based platforms.
 724
 725         config TEGRA_DEBUG_UARTC
 726                 bool "Kernel low-level debugging messages via Tegra UART C"
 727                 depends on ARCH_TEGRA
 728                 select DEBUG_TEGRA_UART
 729                 help
 730                   Say Y here if you want kernel low-level debugging support
 731                   on Tegra based platforms.
 732
 733         config TEGRA_DEBUG_UARTD
 734                 bool "Kernel low-level debugging messages via Tegra UART D"
 735                 depends on ARCH_TEGRA
 736                 select DEBUG_TEGRA_UART
 737                 help
 738                   Say Y here if you want kernel low-level debugging support
 739                   on Tegra based platforms.
 740
 741         config TEGRA_DEBUG_UARTE
 742                 bool "Kernel low-level debugging messages via Tegra UART E"
 743                 depends on ARCH_TEGRA
 744                 select DEBUG_TEGRA_UART
 745                 help
 746                   Say Y here if you want kernel low-level debugging support
 747                   on Tegra based platforms.
 748
 749         config DEBUG_SIRFPRIMA2_UART1
 750                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
 751                 depends on ARCH_PRIMA2
 752                 help
 753                   Say Y here if you want the debug print routines to direct
 754                   their output to the uart1 port on SiRFprimaII devices.
 755
 756         config DEBUG_SIRFMARCO_UART1
 757                 bool "Kernel low-level debugging messages via SiRFmarco UART1"
 758                 depends on ARCH_MARCO
 759                 help
 760                   Say Y here if you want the debug print routines to direct
 761                   their output to the uart1 port on SiRFmarco devices.
 762
 763         config STIH41X_DEBUG_ASC2
 764                 bool "Use StiH415/416 ASC2 UART for low-level debug"
 765                 depends on ARCH_STI
 766                 select DEBUG_STI_UART
 767                 help
 768                   Say Y here if you want kernel low-level debugging support
 769                   on STiH415/416 based platforms like b2000, which has
 770                   default UART wired up to ASC2.
 771
 772                   If unsure, say N.
 773
 774         config STIH41X_DEBUG_SBC_ASC1
 775                 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
 776                 depends on ARCH_STI
 777                 select DEBUG_STI_UART
 778                 help
 779                   Say Y here if you want kernel low-level debugging support
 780                   on STiH415/416 based platforms like b2020. which has
 781                   default UART wired up to SBC ASC1.
 782
 783                   If unsure, say N.
 784
 785         config DEBUG_U300_UART
 786                 bool "Kernel low-level debugging messages via U300 UART0"
 787                 depends on ARCH_U300
 788                 select DEBUG_UART_PL01X
 789                 help
 790                   Say Y here if you want the debug print routines to direct
 791                   their output to the uart port on U300 devices.
 792
 793         config DEBUG_UX500_UART
 794                 depends on ARCH_U8500
 795                 bool "Use Ux500 UART for low-level debug"
 796                 help
 797                   Say Y here if you want kernel low-level debugging support
 798                   on Ux500 based platforms.
 799
 800         config DEBUG_VEXPRESS_UART0_DETECT
 801                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
 802                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
 803                 help
 804                   This option enables a simple heuristic which tries to determine
 805                   the motherboard's memory map variant (original or RS1) and then
 806                   choose the relevant UART0 base address.
 807
 808                   Note that this will only work with standard A-class core tiles,
 809                   and may fail with non-standard SMM or custom software models.
 810
 811         config DEBUG_VEXPRESS_UART0_CA9
 812                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
 813                 depends on ARCH_VEXPRESS
 814                 select DEBUG_UART_PL01X
 815                 help
 816                   This option selects UART0 at 0x10009000. Except for custom models,
 817                   this applies only to the V2P-CA9 tile.
 818
 819         config DEBUG_VEXPRESS_UART0_RS1
 820                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
 821                 depends on ARCH_VEXPRESS
 822                 select DEBUG_UART_PL01X
 823                 help
 824                   This option selects UART0 at 0x1c090000. This applies to most
 825                   of the tiles using the RS1 memory map, including all new A-class
 826                   core tiles, FPGA-based SMMs and software models.
 827
 828         config DEBUG_VEXPRESS_UART0_CRX
 829                 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
 830                 depends on ARCH_VEXPRESS && !MMU
 831                 select DEBUG_UART_PL01X
 832                 help
 833                   This option selects UART0 at 0xb0090000. This is appropriate for
 834                   Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
 835
 836         config DEBUG_VT8500_UART0
 837                 bool "Use UART0 on VIA/Wondermedia SoCs"
 838                 depends on ARCH_VT8500
 839                 help
 840                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
 841                   devices, including VT8500, WM8505, WM8650 and WM8850.
 842
 843         config DEBUG_LL_UART_NONE
 844                 bool "No low-level debugging UART"
 845                 depends on !ARCH_MULTIPLATFORM
 846                 help
 847                   Say Y here if your platform doesn't provide a UART option
 848                   above. This relies on your platform choosing the right UART
 849                   definition internally in order for low-level debugging to
 850                   work.
 851
 852         config DEBUG_ICEDCC
 853                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
 854                 help
 855                   Say Y here if you want the debug print routines to direct
 856                   their output to the EmbeddedICE macrocell's DCC channel using
 857                   co-processor 14. This is known to work on the ARM9 style ICE
 858                   channel and on the XScale with the PEEDI.
 859
 860                   Note that the system will appear to hang during boot if there
 861                   is nothing connected to read from the DCC.
 862
 863         config DEBUG_SEMIHOSTING
 864                 bool "Kernel low-level debug output via semihosting I/O"
 865                 help
 866                   Semihosting enables code running on an ARM target to use
 867                   the I/O facilities on a host debugger/emulator through a
 868                   simple SVC call. The host debugger or emulator must have
 869                   semihosting enabled for the special svc call to be trapped
 870                   otherwise the kernel will crash.
 871
 872                   This is known to work with OpenOCD, as well as
 873                   ARM's Fast Models, or any other controlling environment
 874                   that implements semihosting.
 875
 876                   For more details about semihosting, please see
 877                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
 878
 879         config DEBUG_LL_UART_8250
 880                 bool "Kernel low-level debugging via 8250 UART"
 881                 help
 882                   Say Y here if you wish the debug print routes to direct
 883                   their output to an 8250 UART.  You can use this option
 884                   to provide the parameters for the 8250 UART rather than
 885                   selecting one of the platform specific options above if
 886                   you know the parameters for the port.
 887
 888                   This option is preferred over the platform specific
 889                   options; the platform specific options are deprecated
 890                   and will be soon removed.
 891
 892         config DEBUG_LL_UART_EFM32
 893                 bool "Kernel low-level debugging via efm32 UART"
 894                 depends on ARCH_EFM32
 895                 help
 896                   Say Y here if you want the debug print routines to direct
 897                   their output to an UART or USART port on efm32 based
 898                   machines. Use the following addresses for DEBUG_UART_PHYS:
 899
 900                     0x4000c000 | USART0
 901                     0x4000c400 | USART1
 902                     0x4000c800 | USART2
 903                     0x4000e000 | UART0
 904                     0x4000e400 | UART1
 905
 906         config DEBUG_LL_UART_PL01X
 907                 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
 908                 help
 909                   Say Y here if you wish the debug print routes to direct
 910                   their output to a PL01x Primecell UART.  You can use
 911                   this option to provide the parameters for the UART
 912                   rather than selecting one of the platform specific
 913                   options above if you know the parameters for the port.
 914
 915                   This option is preferred over the platform specific
 916                   options; the platform specific options are deprecated
 917                   and will be soon removed.
 918
 919 endchoice
 920
 921 config DEBUG_EXYNOS_UART
 922         bool
 923
 924 config DEBUG_OMAP2PLUS_UART
 925         bool
 926         depends on ARCH_OMAP2PLUS
 927
 928 config DEBUG_IMX_UART_PORT
 929         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
 930                                                 DEBUG_IMX25_UART || \
 931                                                 DEBUG_IMX21_IMX27_UART || \
 932                                                 DEBUG_IMX31_UART || \
 933                                                 DEBUG_IMX35_UART || \
 934                                                 DEBUG_IMX50_UART || \
 935                                                 DEBUG_IMX51_UART || \
 936                                                 DEBUG_IMX53_UART || \
 937                                                 DEBUG_IMX6Q_UART || \
 938                                                 DEBUG_IMX6SL_UART
 939         default 1
 940         depends on ARCH_MXC
 941         help
 942           Choose UART port on which kernel low-level debug messages
 943           should be output.
 944
 945 config DEBUG_TEGRA_UART
 946         bool
 947         depends on ARCH_TEGRA
 948
 949 config DEBUG_STI_UART
 950         bool
 951         depends on ARCH_STI
 952
 953 config DEBUG_MSM_UART
 954         bool
 955         depends on ARCH_MSM || ARCH_QCOM
 956
 957 config DEBUG_LL_INCLUDE
 958         string
 959         default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
 960         default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
 961         default "debug/exynos.S" if DEBUG_EXYNOS_UART
 962         default "debug/efm32.S" if DEBUG_LL_UART_EFM32
 963         default "debug/icedcc.S" if DEBUG_ICEDCC
 964         default "debug/imx.S" if DEBUG_IMX1_UART || \
 965                                  DEBUG_IMX25_UART || \
 966                                  DEBUG_IMX21_IMX27_UART || \
 967                                  DEBUG_IMX31_UART || \
 968                                  DEBUG_IMX35_UART || \
 969                                  DEBUG_IMX50_UART || \
 970                                  DEBUG_IMX51_UART || \
 971                                  DEBUG_IMX53_UART ||\
 972                                  DEBUG_IMX6Q_UART || \
 973                                  DEBUG_IMX6SL_UART
 974         default "debug/msm.S" if DEBUG_MSM_UART
 975         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
 976         default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
 977         default "debug/sti.S" if DEBUG_STI_UART
 978         default "debug/tegra.S" if DEBUG_TEGRA_UART
 979         default "debug/ux500.S" if DEBUG_UX500_UART
 980         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
 981         default "debug/vf.S" if DEBUG_VF_UART
 982         default "debug/vt8500.S" if DEBUG_VT8500_UART0
 983         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
 984         default "mach/debug-macro.S"
 985
 986 # Compatibility options for PL01x
 987 config DEBUG_UART_PL01X
 988         def_bool ARCH_EP93XX || \
 989                 ARCH_INTEGRATOR || \
 990                 ARCH_SPEAR3XX || \
 991                 ARCH_SPEAR6XX || \
 992                 ARCH_SPEAR13XX || \
 993                 ARCH_VERSATILE
 994
 995 # Compatibility options for 8250
 996 config DEBUG_UART_8250
 997         def_bool ARCH_DOVE || ARCH_EBSA110 || \
 998                 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
 999                 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1000                 ARCH_IOP33X || ARCH_IXP4XX || ARCH_KIRKWOOD || \
1001                 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1002
1003 config DEBUG_UART_PHYS
1004         hex "Physical base address of debug UART"
1005         default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1006         default 0x01c28000 if DEBUG_SUNXI_UART0
1007         default 0x01c28400 if DEBUG_SUNXI_UART1
1008         default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1009         default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1010         default 0x02530c00 if DEBUG_KEYSTONE_UART0
1011         default 0x02531000 if DEBUG_KEYSTONE_UART1
1012         default 0x03010fe0 if ARCH_RPC
1013         default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
1014                                 DEBUG_VEXPRESS_UART0_CA9
1015         default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1016         default 0x10124000 if DEBUG_RK3X_UART0
1017         default 0x10126000 if DEBUG_RK3X_UART1
1018         default 0x101f1000 if ARCH_VERSATILE
1019         default 0x101fb000 if DEBUG_NOMADIK_UART
1020         default 0x16000000 if ARCH_INTEGRATOR
1021         default 0x18000300 if DEBUG_BCM_5301X
1022         default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1023         default 0x20060000 if DEBUG_RK29_UART0
1024         default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1025         default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1026         default 0x20201000 if DEBUG_BCM2835
1027         default 0x3e000000 if DEBUG_BCM_KONA_UART
1028         default 0x4000e400 if DEBUG_LL_UART_EFM32
1029         default 0x40090000 if ARCH_LPC32XX
1030         default 0x40100000 if DEBUG_PXA_UART1
1031         default 0x42000000 if ARCH_GEMINI
1032         default 0x7c0003f8 if FOOTBRIDGE
1033         default 0x80070000 if DEBUG_IMX23_UART
1034         default 0x80074000 if DEBUG_IMX28_UART
1035         default 0x80230000 if DEBUG_PICOXCELL_UART
1036         default 0x808c0000 if ARCH_EP93XX
1037         default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1038         default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1039         default 0xc0013000 if DEBUG_U300_UART
1040         default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1041         default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1042         default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1043         default 0xd0012000 if DEBUG_MVEBU_UART
1044         default 0xd4017000 if DEBUG_MMP_UART2
1045         default 0xd4018000 if DEBUG_MMP_UART3
1046         default 0xe0000000 if ARCH_SPEAR13XX
1047         default 0xf0000be0 if ARCH_EBSA110
1048         default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1049         default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
1050                                 ARCH_ORION5X
1051         default 0xf7fc9000 if DEBUG_BERLIN_UART
1052         default 0xf8b00000 if DEBUG_HI3716_UART
1053         default 0xfcb00000 if DEBUG_HI3620_UART
1054         default 0xfe800000 if ARCH_IOP32X
1055         default 0xffc02000 if DEBUG_SOCFPGA_UART
1056         default 0xffd82340 if ARCH_IOP13XX
1057         default 0xfff36000 if DEBUG_HIGHBANK_UART
1058         default 0xfffff700 if ARCH_IOP33X
1059         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1060                 DEBUG_LL_UART_EFM32 || \
1061                 DEBUG_UART_8250 || DEBUG_UART_PL01X
1062
1063 config DEBUG_UART_VIRT
1064         hex "Virtual base address of debug UART"
1065         default 0xe0010fe0 if ARCH_RPC
1066         default 0xf0000be0 if ARCH_EBSA110
1067         default 0xf0009000 if DEBUG_CNS3XXX
1068         default 0xf01fb000 if DEBUG_NOMADIK_UART
1069         default 0xf0201000 if DEBUG_BCM2835
1070         default 0xf1000300 if DEBUG_BCM_5301X
1071         default 0xf11f1000 if ARCH_VERSATILE
1072         default 0xf1600000 if ARCH_INTEGRATOR
1073         default 0xf1c28000 if DEBUG_SUNXI_UART0
1074         default 0xf1c28400 if DEBUG_SUNXI_UART1
1075         default 0xf2100000 if DEBUG_PXA_UART1
1076         default 0xf4090000 if ARCH_LPC32XX
1077         default 0xf4200000 if ARCH_GEMINI
1078         default 0xf7fc9000 if DEBUG_BERLIN_UART
1079         default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1080         default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1081         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1082         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1083         default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1084         default 0xfd000000 if ARCH_SPEAR13XX
1085         default 0xfd012000 if ARCH_MV78XX0
1086         default 0xfde12000 if ARCH_DOVE
1087         default 0xfe012000 if ARCH_ORION5X
1088         default 0xfe017000 if DEBUG_MMP_UART2
1089         default 0xfe018000 if DEBUG_MMP_UART3
1090         default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1091         default 0xfe230000 if DEBUG_PICOXCELL_UART
1092         default 0xfe300000 if DEBUG_BCM_KONA_UART
1093         default 0xfe800000 if ARCH_IOP32X
1094         default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
1095         default 0xfeb24000 if DEBUG_RK3X_UART0
1096         default 0xfeb26000 if DEBUG_RK3X_UART1
1097         default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1098         default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1099         default 0xfec02000 if DEBUG_SOCFPGA_UART
1100         default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1101         default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1102         default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1103         default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1104         default 0xfed12000 if ARCH_KIRKWOOD
1105         default 0xfed60000 if DEBUG_RK29_UART0
1106         default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1107         default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1108         default 0xfedc0000 if ARCH_EP93XX
1109         default 0xfee003f8 if FOOTBRIDGE
1110         default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1111         default 0xfee82340 if ARCH_IOP13XX
1112         default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1113         default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1114         default 0xfef36000 if DEBUG_HIGHBANK_UART
1115         default 0xfefff700 if ARCH_IOP33X
1116         default 0xff003000 if DEBUG_U300_UART
1117         default DEBUG_UART_PHYS if !MMU
1118         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1119                 DEBUG_UART_8250 || DEBUG_UART_PL01X
1120
1121 config DEBUG_UART_8250_SHIFT
1122         int "Register offset shift for the 8250 debug UART"
1123         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1124         default 0 if FOOTBRIDGE || ARCH_IOP32X
1125         default 2
1126
1127 config DEBUG_UART_8250_WORD
1128         bool "Use 32-bit accesses for 8250 UART"
1129         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1130         depends on DEBUG_UART_8250_SHIFT >= 2
1131         default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1132                 ARCH_KEYSTONE || \
1133                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1134                 DEBUG_DAVINCI_DA8XX_UART2 || \
1135                 DEBUG_BCM_KONA_UART
1136
1137 config DEBUG_UART_8250_FLOW_CONTROL
1138         bool "Enable flow control for 8250 UART"
1139         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1140         default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1141
1142 config DEBUG_UNCOMPRESS
1143         bool
1144         depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1145         default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1146                      (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1147         help
1148           This option influences the normal decompressor output for
1149           multiplatform kernels.  Normally, multiplatform kernels disable
1150           decompressor output because it is not possible to know where to
1151           send the decompressor output.
1152
1153           When this option is set, the selected DEBUG_LL output method
1154           will be re-used for normal decompressor output on multiplatform
1155           kernels.
1156
1157
1158 config UNCOMPRESS_INCLUDE
1159         string
1160         default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1161                                         PLAT_SAMSUNG || ARCH_EFM32
1162         default "mach/uncompress.h"
1163
1164 config EARLY_PRINTK
1165         bool "Early printk"
1166         depends on DEBUG_LL
1167         help
1168           Say Y here if you want to have an early console using the
1169           kernel low-level debugging functions. Add earlyprintk to your
1170           kernel parameters to enable this console.
1171
1172 config OC_ETM
1173         bool "On-chip ETM and ETB"
1174         depends on ARM_AMBA
1175         help
1176           Enables the on-chip embedded trace macrocell and embedded trace
1177           buffer driver that will allow you to collect traces of the
1178           kernel code.
1179
1180 config ARM_KPROBES_TEST
1181         tristate "Kprobes test module"
1182         depends on KPROBES && MODULES
1183         help
1184           Perform tests of kprobes API and instruction set simulation.
1185
1186 config PID_IN_CONTEXTIDR
1187         bool "Write the current PID to the CONTEXTIDR register"
1188         depends on CPU_COPY_V6
1189         help
1190           Enabling this option causes the kernel to write the current PID to
1191           the PROCID field of the CONTEXTIDR register, at the expense of some
1192           additional instructions during context switch. Say Y here only if you
1193           are planning to use hardware trace tools with this kernel.
1194
1195 config DEBUG_SET_MODULE_RONX
1196         bool "Set loadable kernel module data as NX and text as RO"
1197         depends on MODULES
1198         ---help---
1199           This option helps catch unintended modifications to loadable
1200           kernel module's text and read-only data. It also prevents execution
1201           of module data. Such protection may interfere with run-time code
1202           patching and dynamic kernel tracing - and they might also protect
1203           against certain classes of kernel exploits.
1204           If in doubt, say "N".
1205
1206 endmenu