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 Samsung 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         config DEBUG_S3C_UART1
 627                 depends on PLAT_SAMSUNG
 628                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 629                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
 630                 bool "Use Samsung S3C UART 1 for low-level debug"
 631                 help
 632                   Say Y here if you want the debug print routines to direct
 633                   their output to UART 1. The port must have been initialised
 634                   by the boot-loader before use.
 635
 636         config DEBUG_S3C_UART2
 637                 depends on PLAT_SAMSUNG
 638                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 639                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
 640                 bool "Use Samsung S3C UART 2 for low-level debug"
 641                 help
 642                   Say Y here if you want the debug print routines to direct
 643                   their output to UART 2. The port must have been initialised
 644                   by the boot-loader before use.
 645
 646         config DEBUG_S3C_UART3
 647                 depends on PLAT_SAMSUNG && ARCH_EXYNOS
 648                 select DEBUG_EXYNOS_UART
 649                 bool "Use Samsung S3C UART 3 for low-level debug"
 650                 help
 651                   Say Y here if you want the debug print routines to direct
 652                   their output to UART 3. The port must have been initialised
 653                   by the boot-loader before use.
 654
 655         config DEBUG_S3C2410_UART0
 656                 depends on ARCH_S3C24XX
 657                 select DEBUG_S3C2410_UART
 658                 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
 659                 help
 660                   Say Y here if you want the debug print routines to direct
 661                   their output to UART 0. The port must have been initialised
 662                   by the boot-loader before use.
 663
 664         config DEBUG_S3C2410_UART1
 665                 depends on ARCH_S3C24XX
 666                 select DEBUG_S3C2410_UART
 667                 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
 668                 help
 669                   Say Y here if you want the debug print routines to direct
 670                   their output to UART 1. The port must have been initialised
 671                   by the boot-loader before use.
 672
 673         config DEBUG_S3C2410_UART2
 674                 depends on ARCH_S3C24XX
 675                 select DEBUG_S3C2410_UART
 676                 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
 677                 help
 678                   Say Y here if you want the debug print routines to direct
 679                   their output to UART 2. The port must have been initialised
 680                   by the boot-loader before use.
 681
 682         config DEBUG_SOCFPGA_UART
 683                 depends on ARCH_SOCFPGA
 684                 bool "Use SOCFPGA UART for low-level debug"
 685                 select DEBUG_UART_8250
 686                 help
 687                   Say Y here if you want kernel low-level debugging support
 688                   on SOCFPGA based platforms.
 689
 690         config DEBUG_SUNXI_UART0
 691                 bool "Kernel low-level debugging messages via sunXi UART0"
 692                 depends on ARCH_SUNXI
 693                 select DEBUG_UART_8250
 694                 help
 695                   Say Y here if you want kernel low-level debugging support
 696                   on Allwinner A1X based platforms on the UART0.
 697
 698         config DEBUG_SUNXI_UART1
 699                 bool "Kernel low-level debugging messages via sunXi UART1"
 700                 depends on ARCH_SUNXI
 701                 select DEBUG_UART_8250
 702                 help
 703                   Say Y here if you want kernel low-level debugging support
 704                   on Allwinner A1X based platforms on the UART1.
 705
 706         config DEBUG_SUNXI_R_UART
 707                 bool "Kernel low-level debugging messages via sunXi R_UART"
 708                 depends on MACH_SUN6I || MACH_SUN8I
 709                 select DEBUG_UART_8250
 710                 help
 711                   Say Y here if you want kernel low-level debugging support
 712                   on Allwinner A31/A23 based platforms on the R_UART.
 713
 714         config TEGRA_DEBUG_UART_AUTO_ODMDATA
 715                 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
 716                 depends on ARCH_TEGRA
 717                 select DEBUG_TEGRA_UART
 718                 help
 719                   Automatically determines which UART to use for low-level
 720                   debug based on the ODMDATA value. This value is part of
 721                   the BCT, and is written to the boot memory device using
 722                   nvflash, or other flashing tool.  When bits 19:18 are 3,
 723                   then bits 17:15 indicate which UART to use; 0/1/2/3/4
 724                   are UART A/B/C/D/E.
 725
 726         config TEGRA_DEBUG_UARTA
 727                 bool "Kernel low-level debugging messages via Tegra UART A"
 728                 depends on ARCH_TEGRA
 729                 select DEBUG_TEGRA_UART
 730                 help
 731                   Say Y here if you want kernel low-level debugging support
 732                   on Tegra based platforms.
 733
 734         config TEGRA_DEBUG_UARTB
 735                 bool "Kernel low-level debugging messages via Tegra UART B"
 736                 depends on ARCH_TEGRA
 737                 select DEBUG_TEGRA_UART
 738                 help
 739                   Say Y here if you want kernel low-level debugging support
 740                   on Tegra based platforms.
 741
 742         config TEGRA_DEBUG_UARTC
 743                 bool "Kernel low-level debugging messages via Tegra UART C"
 744                 depends on ARCH_TEGRA
 745                 select DEBUG_TEGRA_UART
 746                 help
 747                   Say Y here if you want kernel low-level debugging support
 748                   on Tegra based platforms.
 749
 750         config TEGRA_DEBUG_UARTD
 751                 bool "Kernel low-level debugging messages via Tegra UART D"
 752                 depends on ARCH_TEGRA
 753                 select DEBUG_TEGRA_UART
 754                 help
 755                   Say Y here if you want kernel low-level debugging support
 756                   on Tegra based platforms.
 757
 758         config TEGRA_DEBUG_UARTE
 759                 bool "Kernel low-level debugging messages via Tegra UART E"
 760                 depends on ARCH_TEGRA
 761                 select DEBUG_TEGRA_UART
 762                 help
 763                   Say Y here if you want kernel low-level debugging support
 764                   on Tegra based platforms.
 765
 766         config DEBUG_SIRFPRIMA2_UART1
 767                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
 768                 depends on ARCH_PRIMA2
 769                 help
 770                   Say Y here if you want the debug print routines to direct
 771                   their output to the uart1 port on SiRFprimaII devices.
 772
 773         config DEBUG_SIRFMARCO_UART1
 774                 bool "Kernel low-level debugging messages via SiRFmarco UART1"
 775                 depends on ARCH_MARCO
 776                 help
 777                   Say Y here if you want the debug print routines to direct
 778                   their output to the uart1 port on SiRFmarco devices.
 779
 780         config STIH41X_DEBUG_ASC2
 781                 bool "Use StiH415/416 ASC2 UART for low-level debug"
 782                 depends on ARCH_STI
 783                 select DEBUG_STI_UART
 784                 help
 785                   Say Y here if you want kernel low-level debugging support
 786                   on STiH415/416 based platforms like b2000, which has
 787                   default UART wired up to ASC2.
 788
 789                   If unsure, say N.
 790
 791         config STIH41X_DEBUG_SBC_ASC1
 792                 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
 793                 depends on ARCH_STI
 794                 select DEBUG_STI_UART
 795                 help
 796                   Say Y here if you want kernel low-level debugging support
 797                   on STiH415/416 based platforms like b2020. which has
 798                   default UART wired up to SBC ASC1.
 799
 800                   If unsure, say N.
 801
 802         config DEBUG_U300_UART
 803                 bool "Kernel low-level debugging messages via U300 UART0"
 804                 depends on ARCH_U300
 805                 select DEBUG_UART_PL01X
 806                 help
 807                   Say Y here if you want the debug print routines to direct
 808                   their output to the uart port on U300 devices.
 809
 810         config DEBUG_UX500_UART
 811                 depends on ARCH_U8500
 812                 bool "Use Ux500 UART for low-level debug"
 813                 help
 814                   Say Y here if you want kernel low-level debugging support
 815                   on Ux500 based platforms.
 816
 817         config DEBUG_VEXPRESS_UART0_DETECT
 818                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
 819                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
 820                 help
 821                   This option enables a simple heuristic which tries to determine
 822                   the motherboard's memory map variant (original or RS1) and then
 823                   choose the relevant UART0 base address.
 824
 825                   Note that this will only work with standard A-class core tiles,
 826                   and may fail with non-standard SMM or custom software models.
 827
 828         config DEBUG_VEXPRESS_UART0_CA9
 829                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
 830                 depends on ARCH_VEXPRESS
 831                 select DEBUG_UART_PL01X
 832                 help
 833                   This option selects UART0 at 0x10009000. Except for custom models,
 834                   this applies only to the V2P-CA9 tile.
 835
 836         config DEBUG_VEXPRESS_UART0_RS1
 837                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
 838                 depends on ARCH_VEXPRESS
 839                 select DEBUG_UART_PL01X
 840                 help
 841                   This option selects UART0 at 0x1c090000. This applies to most
 842                   of the tiles using the RS1 memory map, including all new A-class
 843                   core tiles, FPGA-based SMMs and software models.
 844
 845         config DEBUG_VEXPRESS_UART0_CRX
 846                 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
 847                 depends on ARCH_VEXPRESS && !MMU
 848                 select DEBUG_UART_PL01X
 849                 help
 850                   This option selects UART0 at 0xb0090000. This is appropriate for
 851                   Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
 852
 853         config DEBUG_VT8500_UART0
 854                 bool "Use UART0 on VIA/Wondermedia SoCs"
 855                 depends on ARCH_VT8500
 856                 help
 857                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
 858                   devices, including VT8500, WM8505, WM8650 and WM8850.
 859
 860         config DEBUG_LL_UART_NONE
 861                 bool "No low-level debugging UART"
 862                 depends on !ARCH_MULTIPLATFORM
 863                 help
 864                   Say Y here if your platform doesn't provide a UART option
 865                   above. This relies on your platform choosing the right UART
 866                   definition internally in order for low-level debugging to
 867                   work.
 868
 869         config DEBUG_ICEDCC
 870                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
 871                 help
 872                   Say Y here if you want the debug print routines to direct
 873                   their output to the EmbeddedICE macrocell's DCC channel using
 874                   co-processor 14. This is known to work on the ARM9 style ICE
 875                   channel and on the XScale with the PEEDI.
 876
 877                   Note that the system will appear to hang during boot if there
 878                   is nothing connected to read from the DCC.
 879
 880         config DEBUG_SEMIHOSTING
 881                 bool "Kernel low-level debug output via semihosting I/O"
 882                 help
 883                   Semihosting enables code running on an ARM target to use
 884                   the I/O facilities on a host debugger/emulator through a
 885                   simple SVC call. The host debugger or emulator must have
 886                   semihosting enabled for the special svc call to be trapped
 887                   otherwise the kernel will crash.
 888
 889                   This is known to work with OpenOCD, as well as
 890                   ARM's Fast Models, or any other controlling environment
 891                   that implements semihosting.
 892
 893                   For more details about semihosting, please see
 894                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
 895
 896         config DEBUG_LL_UART_8250
 897                 bool "Kernel low-level debugging via 8250 UART"
 898                 help
 899                   Say Y here if you wish the debug print routes to direct
 900                   their output to an 8250 UART.  You can use this option
 901                   to provide the parameters for the 8250 UART rather than
 902                   selecting one of the platform specific options above if
 903                   you know the parameters for the port.
 904
 905                   This option is preferred over the platform specific
 906                   options; the platform specific options are deprecated
 907                   and will be soon removed.
 908
 909         config DEBUG_LL_UART_EFM32
 910                 bool "Kernel low-level debugging via efm32 UART"
 911                 depends on ARCH_EFM32
 912                 help
 913                   Say Y here if you want the debug print routines to direct
 914                   their output to an UART or USART port on efm32 based
 915                   machines. Use the following addresses for DEBUG_UART_PHYS:
 916
 917                     0x4000c000 | USART0
 918                     0x4000c400 | USART1
 919                     0x4000c800 | USART2
 920                     0x4000e000 | UART0
 921                     0x4000e400 | UART1
 922
 923         config DEBUG_LL_UART_PL01X
 924                 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
 925                 help
 926                   Say Y here if you wish the debug print routes to direct
 927                   their output to a PL01x Primecell UART.  You can use
 928                   this option to provide the parameters for the UART
 929                   rather than selecting one of the platform specific
 930                   options above if you know the parameters for the port.
 931
 932                   This option is preferred over the platform specific
 933                   options; the platform specific options are deprecated
 934                   and will be soon removed.
 935
 936 endchoice
 937
 938 config DEBUG_EXYNOS_UART
 939         bool
 940
 941 config DEBUG_S3C2410_UART
 942         bool
 943         select DEBUG_S3C24XX_UART
 944
 945 config DEBUG_S3C24XX_UART
 946         bool
 947
 948 config DEBUG_OMAP2PLUS_UART
 949         bool
 950         depends on ARCH_OMAP2PLUS
 951
 952 config DEBUG_IMX_UART_PORT
 953         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
 954                                                 DEBUG_IMX25_UART || \
 955                                                 DEBUG_IMX21_IMX27_UART || \
 956                                                 DEBUG_IMX31_UART || \
 957                                                 DEBUG_IMX35_UART || \
 958                                                 DEBUG_IMX50_UART || \
 959                                                 DEBUG_IMX51_UART || \
 960                                                 DEBUG_IMX53_UART || \
 961                                                 DEBUG_IMX6Q_UART || \
 962                                                 DEBUG_IMX6SL_UART || \
 963                                                 DEBUG_IMX6SX_UART
 964         default 1
 965         depends on ARCH_MXC
 966         help
 967           Choose UART port on which kernel low-level debug messages
 968           should be output.
 969
 970 config DEBUG_VF_UART_PORT
 971         int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
 972         default 1
 973         range 0 3
 974         depends on SOC_VF610
 975         help
 976           Choose UART port on which kernel low-level debug messages
 977           should be output.
 978
 979 config DEBUG_TEGRA_UART
 980         bool
 981         depends on ARCH_TEGRA
 982
 983 config DEBUG_STI_UART
 984         bool
 985         depends on ARCH_STI
 986
 987 config DEBUG_LL_INCLUDE
 988         string
 989         default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
 990         default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
 991         default "debug/exynos.S" if DEBUG_EXYNOS_UART
 992         default "debug/efm32.S" if DEBUG_LL_UART_EFM32
 993         default "debug/icedcc.S" if DEBUG_ICEDCC
 994         default "debug/imx.S" if DEBUG_IMX1_UART || \
 995                                  DEBUG_IMX25_UART || \
 996                                  DEBUG_IMX21_IMX27_UART || \
 997                                  DEBUG_IMX31_UART || \
 998                                  DEBUG_IMX35_UART || \
 999                                  DEBUG_IMX50_UART || \
1000                                  DEBUG_IMX51_UART || \
1001                                  DEBUG_IMX53_UART ||\
1002                                  DEBUG_IMX6Q_UART || \
1003                                  DEBUG_IMX6SL_UART || \
1004                                  DEBUG_IMX6SX_UART
1005         default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1006         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1007         default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1008         default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1009         default "debug/sti.S" if DEBUG_STI_UART
1010         default "debug/tegra.S" if DEBUG_TEGRA_UART
1011         default "debug/ux500.S" if DEBUG_UX500_UART
1012         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1013         default "debug/vf.S" if DEBUG_VF_UART
1014         default "debug/vt8500.S" if DEBUG_VT8500_UART0
1015         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1016         default "mach/debug-macro.S"
1017
1018 # Compatibility options for PL01x
1019 config DEBUG_UART_PL01X
1020         def_bool ARCH_EP93XX || \
1021                 ARCH_INTEGRATOR || \
1022                 ARCH_SPEAR3XX || \
1023                 ARCH_SPEAR6XX || \
1024                 ARCH_SPEAR13XX || \
1025                 ARCH_VERSATILE
1026
1027 # Compatibility options for 8250
1028 config DEBUG_UART_8250
1029         def_bool ARCH_DOVE || ARCH_EBSA110 || \
1030                 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1031                 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1032                 ARCH_IOP33X || ARCH_IXP4XX || \
1033                 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1034
1035 config DEBUG_UART_PHYS
1036         hex "Physical base address of debug UART"
1037         default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1038         default 0x01c28000 if DEBUG_SUNXI_UART0
1039         default 0x01c28400 if DEBUG_SUNXI_UART1
1040         default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1041         default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1042         default 0x01f02800 if DEBUG_SUNXI_R_UART
1043         default 0x02530c00 if DEBUG_KEYSTONE_UART0
1044         default 0x02531000 if DEBUG_KEYSTONE_UART1
1045         default 0x03010fe0 if ARCH_RPC
1046         default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
1047                                 DEBUG_VEXPRESS_UART0_CA9
1048         default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1049         default 0x10124000 if DEBUG_RK3X_UART0
1050         default 0x10126000 if DEBUG_RK3X_UART1
1051         default 0x101f1000 if ARCH_VERSATILE
1052         default 0x101fb000 if DEBUG_NOMADIK_UART
1053         default 0x16000000 if ARCH_INTEGRATOR
1054         default 0x18000300 if DEBUG_BCM_5301X
1055         default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1056         default 0x20060000 if DEBUG_RK29_UART0
1057         default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1058         default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1059         default 0x20201000 if DEBUG_BCM2835
1060         default 0x3e000000 if DEBUG_BCM_KONA_UART
1061         default 0x4000e400 if DEBUG_LL_UART_EFM32
1062         default 0x40090000 if ARCH_LPC32XX
1063         default 0x40100000 if DEBUG_PXA_UART1
1064         default 0x42000000 if ARCH_GEMINI
1065         default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1066                                 DEBUG_S3C2410_UART0)
1067         default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1068                                 DEBUG_S3C2410_UART1)
1069         default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1070                                 DEBUG_S3C2410_UART2)
1071         default 0x7c0003f8 if FOOTBRIDGE
1072         default 0x80070000 if DEBUG_IMX23_UART
1073         default 0x80074000 if DEBUG_IMX28_UART
1074         default 0x80230000 if DEBUG_PICOXCELL_UART
1075         default 0x808c0000 if ARCH_EP93XX
1076         default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1077         default 0xa9a00000 if DEBUG_MSM_UART
1078         default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1079         default 0xc0013000 if DEBUG_U300_UART
1080         default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1081         default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1082         default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1083         default 0xd0012000 if DEBUG_MVEBU_UART
1084         default 0xd4017000 if DEBUG_MMP_UART2
1085         default 0xd4018000 if DEBUG_MMP_UART3
1086         default 0xe0000000 if ARCH_SPEAR13XX
1087         default 0xf0000be0 if ARCH_EBSA110
1088         default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1089         default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1090                                 ARCH_ORION5X
1091         default 0xf7fc9000 if DEBUG_BERLIN_UART
1092         default 0xf8b00000 if DEBUG_HI3716_UART
1093         default 0xf991e000 if DEBUG_QCOM_UARTDM
1094         default 0xfcb00000 if DEBUG_HI3620_UART
1095         default 0xfe800000 if ARCH_IOP32X
1096         default 0xffc02000 if DEBUG_SOCFPGA_UART
1097         default 0xffd82340 if ARCH_IOP13XX
1098         default 0xfff36000 if DEBUG_HIGHBANK_UART
1099         default 0xfffff700 if ARCH_IOP33X
1100         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1101                 DEBUG_LL_UART_EFM32 || \
1102                 DEBUG_UART_8250 || DEBUG_UART_PL01X || \
1103                 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART
1104
1105 config DEBUG_UART_VIRT
1106         hex "Virtual base address of debug UART"
1107         default 0xe0010fe0 if ARCH_RPC
1108         default 0xe1000000 if DEBUG_MSM_UART
1109         default 0xf0000be0 if ARCH_EBSA110
1110         default 0xf0009000 if DEBUG_CNS3XXX
1111         default 0xf01fb000 if DEBUG_NOMADIK_UART
1112         default 0xf0201000 if DEBUG_BCM2835
1113         default 0xf1000300 if DEBUG_BCM_5301X
1114         default 0xf11f1000 if ARCH_VERSATILE
1115         default 0xf1600000 if ARCH_INTEGRATOR
1116         default 0xf1c28000 if DEBUG_SUNXI_UART0
1117         default 0xf1c28400 if DEBUG_SUNXI_UART1
1118         default 0xf1f02800 if DEBUG_SUNXI_R_UART
1119         default 0xf2100000 if DEBUG_PXA_UART1
1120         default 0xf4090000 if ARCH_LPC32XX
1121         default 0xf4200000 if ARCH_GEMINI
1122         default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1123                                 DEBUG_S3C2410_UART0)
1124         default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1125                                 DEBUG_S3C2410_UART1)
1126         default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1127                                 DEBUG_S3C2410_UART2)
1128         default 0xf7fc9000 if DEBUG_BERLIN_UART
1129         default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1130         default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1131         default 0xfa71e000 if DEBUG_QCOM_UARTDM
1132         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1133         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1134         default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1135         default 0xfd000000 if ARCH_SPEAR13XX
1136         default 0xfd012000 if ARCH_MV78XX0
1137         default 0xfde12000 if ARCH_DOVE
1138         default 0xfe012000 if ARCH_ORION5X
1139         default 0xfe017000 if DEBUG_MMP_UART2
1140         default 0xfe018000 if DEBUG_MMP_UART3
1141         default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1142         default 0xfe230000 if DEBUG_PICOXCELL_UART
1143         default 0xfe300000 if DEBUG_BCM_KONA_UART
1144         default 0xfe800000 if ARCH_IOP32X
1145         default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
1146         default 0xfeb24000 if DEBUG_RK3X_UART0
1147         default 0xfeb26000 if DEBUG_RK3X_UART1
1148         default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1149         default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1150         default 0xfec02000 if DEBUG_SOCFPGA_UART
1151         default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1152         default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1153         default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1154         default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1155         default 0xfed60000 if DEBUG_RK29_UART0
1156         default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1157         default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1158         default 0xfedc0000 if ARCH_EP93XX
1159         default 0xfee003f8 if FOOTBRIDGE
1160         default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1161         default 0xfee82340 if ARCH_IOP13XX
1162         default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1163         default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1164         default 0xfef36000 if DEBUG_HIGHBANK_UART
1165         default 0xfefff700 if ARCH_IOP33X
1166         default 0xff003000 if DEBUG_U300_UART
1167         default DEBUG_UART_PHYS if !MMU
1168         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1169                 DEBUG_UART_8250 || DEBUG_UART_PL01X || \
1170                 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART
1171
1172 config DEBUG_UART_8250_SHIFT
1173         int "Register offset shift for the 8250 debug UART"
1174         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1175         default 0 if FOOTBRIDGE || ARCH_IOP32X
1176         default 2
1177
1178 config DEBUG_UART_8250_WORD
1179         bool "Use 32-bit accesses for 8250 UART"
1180         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1181         depends on DEBUG_UART_8250_SHIFT >= 2
1182         default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1183                 ARCH_KEYSTONE || \
1184                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1185                 DEBUG_DAVINCI_DA8XX_UART2 || \
1186                 DEBUG_BCM_KONA_UART
1187
1188 config DEBUG_UART_8250_FLOW_CONTROL
1189         bool "Enable flow control for 8250 UART"
1190         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1191         default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1192
1193 config DEBUG_UNCOMPRESS
1194         bool
1195         depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1196         default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1197                      (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1198         help
1199           This option influences the normal decompressor output for
1200           multiplatform kernels.  Normally, multiplatform kernels disable
1201           decompressor output because it is not possible to know where to
1202           send the decompressor output.
1203
1204           When this option is set, the selected DEBUG_LL output method
1205           will be re-used for normal decompressor output on multiplatform
1206           kernels.
1207
1208
1209 config UNCOMPRESS_INCLUDE
1210         string
1211         default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1212                                         PLAT_SAMSUNG || ARCH_EFM32
1213         default "mach/uncompress.h"
1214
1215 config EARLY_PRINTK
1216         bool "Early printk"
1217         depends on DEBUG_LL
1218         help
1219           Say Y here if you want to have an early console using the
1220           kernel low-level debugging functions. Add earlyprintk to your
1221           kernel parameters to enable this console.
1222
1223 config OC_ETM
1224         bool "On-chip ETM and ETB"
1225         depends on ARM_AMBA
1226         help
1227           Enables the on-chip embedded trace macrocell and embedded trace
1228           buffer driver that will allow you to collect traces of the
1229           kernel code.
1230
1231 config ARM_KPROBES_TEST
1232         tristate "Kprobes test module"
1233         depends on KPROBES && MODULES
1234         help
1235           Perform tests of kprobes API and instruction set simulation.
1236
1237 config PID_IN_CONTEXTIDR
1238         bool "Write the current PID to the CONTEXTIDR register"
1239         depends on CPU_COPY_V6
1240         help
1241           Enabling this option causes the kernel to write the current PID to
1242           the PROCID field of the CONTEXTIDR register, at the expense of some
1243           additional instructions during context switch. Say Y here only if you
1244           are planning to use hardware trace tools with this kernel.
1245
1246 config DEBUG_SET_MODULE_RONX
1247         bool "Set loadable kernel module data as NX and text as RO"
1248         depends on MODULES
1249         ---help---
1250           This option helps catch unintended modifications to loadable
1251           kernel module's text and read-only data. It also prevents execution
1252           of module data. Such protection may interfere with run-time code
1253           patching and dynamic kernel tracing - and they might also protect
1254           against certain classes of kernel exploits.
1255           If in doubt, say "N".
1256
1257 endmenu