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 AT91_DEBUG_LL_DBGU2
 105                 bool "Kernel low-level debugging on sama5d4"
 106                 depends on HAVE_AT91_DBGU2
 107
 108         config DEBUG_BCM2835
 109                 bool "Kernel low-level debugging on BCM2835 PL011 UART"
 110                 depends on ARCH_BCM2835
 111                 select DEBUG_UART_PL01X
 112
 113         config DEBUG_BCM_5301X
 114                 bool "Kernel low-level debugging on BCM5301X UART1"
 115                 depends on ARCH_BCM_5301X
 116                 select DEBUG_UART_PL01X
 117
 118         config DEBUG_BCM_KONA_UART
 119                 bool "Kernel low-level debugging messages via BCM KONA UART"
 120                 depends on ARCH_BCM_MOBILE
 121                 select DEBUG_UART_8250
 122                 help
 123                   Say Y here if you want kernel low-level debugging support
 124                   on Broadcom SoC platforms.
 125                   This low level debug works for Broadcom
 126                   mobile SoCs in the Kona family of chips (e.g. bcm28155,
 127                   bcm11351, etc...)
 128
 129         config DEBUG_BCM63XX
 130                 bool "Kernel low-level debugging on BCM63XX UART"
 131                 depends on ARCH_BCM_63XX
 132                 select DEBUG_UART_BCM63XX
 133
 134         config DEBUG_BERLIN_UART
 135                 bool "Marvell Berlin SoC Debug UART"
 136                 depends on ARCH_BERLIN
 137                 select DEBUG_UART_8250
 138                 help
 139                   Say Y here if you want kernel low-level debugging support
 140                   on Marvell Berlin SoC based platforms.
 141
 142         config DEBUG_CLPS711X_UART1
 143                 bool "Kernel low-level debugging messages via UART1"
 144                 depends on ARCH_CLPS711X
 145                 help
 146                   Say Y here if you want the debug print routines to direct
 147                   their output to the first serial port on these devices.
 148
 149         config DEBUG_CLPS711X_UART2
 150                 bool "Kernel low-level debugging messages via UART2"
 151                 depends on ARCH_CLPS711X
 152                 help
 153                   Say Y here if you want the debug print routines to direct
 154                   their output to the second serial port on these devices.
 155
 156         config DEBUG_CNS3XXX
 157                 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
 158                 depends on ARCH_CNS3XXX
 159                 select DEBUG_UART_8250
 160                 help
 161                   Say Y here if you want the debug print routines to direct
 162                   their output to the CNS3xxx UART0.
 163
 164         config DEBUG_DAVINCI_DA8XX_UART1
 165                 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
 166                 depends on ARCH_DAVINCI_DA8XX
 167                 select DEBUG_UART_8250
 168                 help
 169                   Say Y here if you want the debug print routines to direct
 170                   their output to UART1 serial port on DaVinci DA8XX devices.
 171
 172         config DEBUG_DAVINCI_DA8XX_UART2
 173                 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
 174                 depends on ARCH_DAVINCI_DA8XX
 175                 select DEBUG_UART_8250
 176                 help
 177                   Say Y here if you want the debug print routines to direct
 178                   their output to UART2 serial port on DaVinci DA8XX devices.
 179
 180         config DEBUG_DAVINCI_DMx_UART0
 181                 bool "Kernel low-level debugging on DaVinci DMx using UART0"
 182                 depends on ARCH_DAVINCI_DMx
 183                 select DEBUG_UART_8250
 184                 help
 185                   Say Y here if you want the debug print routines to direct
 186                   their output to UART0 serial port on DaVinci DMx devices.
 187
 188         config DEBUG_ZYNQ_UART0
 189                 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
 190                 depends on ARCH_ZYNQ
 191                 help
 192                   Say Y here if you want the debug print routines to direct
 193                   their output to UART0 on the Zynq platform.
 194
 195         config DEBUG_ZYNQ_UART1
 196                 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
 197                 depends on ARCH_ZYNQ
 198                 help
 199                   Say Y here if you want the debug print routines to direct
 200                   their output to UART1 on the Zynq platform.
 201
 202                   If you have a ZC702 board and want early boot messages to
 203                   appear on the USB serial adaptor, select this option.
 204
 205         config DEBUG_DC21285_PORT
 206                 bool "Kernel low-level debugging messages via footbridge serial port"
 207                 depends on FOOTBRIDGE
 208                 help
 209                   Say Y here if you want the debug print routines to direct
 210                   their output to the serial port in the DC21285 (Footbridge).
 211
 212         config DEBUG_FOOTBRIDGE_COM1
 213                 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
 214                 depends on FOOTBRIDGE
 215                 help
 216                   Say Y here if you want the debug print routines to direct
 217                   their output to the 8250 at PCI COM1.
 218
 219         config DEBUG_HI3620_UART
 220                 bool "Hisilicon HI3620 Debug UART"
 221                 depends on ARCH_HI3xxx
 222                 select DEBUG_UART_PL01X
 223                 help
 224                   Say Y here if you want kernel low-level debugging support
 225                   on HI3620 UART.
 226
 227         config DEBUG_HI3716_UART
 228                 bool "Hisilicon Hi3716 Debug UART"
 229                 depends on ARCH_HI3xxx
 230                 select DEBUG_UART_PL01X
 231                 help
 232                   Say Y here if you want kernel low-level debugging support
 233                   on HI3716 UART.
 234
 235         config DEBUG_HIGHBANK_UART
 236                 bool "Kernel low-level debugging messages via Highbank UART"
 237                 depends on ARCH_HIGHBANK
 238                 select DEBUG_UART_PL01X
 239                 help
 240                   Say Y here if you want the debug print routines to direct
 241                   their output to the UART on Highbank based devices.
 242
 243         config DEBUG_HIP04_UART
 244                 bool "Hisilicon HiP04 Debug UART"
 245                 depends on ARCH_HIP04
 246                 select DEBUG_UART_8250
 247                 help
 248                   Say Y here if you want kernel low-level debugging support
 249                   on HIP04 UART.
 250
 251         config DEBUG_HIX5HD2_UART
 252                 bool "Hisilicon Hix5hd2 Debug UART"
 253                 depends on ARCH_HIX5HD2
 254                 select DEBUG_UART_PL01X
 255                 help
 256                   Say Y here if you want kernel low-level debugging support
 257                   on Hix5hd2 UART.
 258
 259         config DEBUG_IMX1_UART
 260                 bool "i.MX1 Debug UART"
 261                 depends on SOC_IMX1
 262                 help
 263                   Say Y here if you want kernel low-level debugging support
 264                   on i.MX1.
 265
 266         config DEBUG_IMX23_UART
 267                 bool "i.MX23 Debug UART"
 268                 depends on SOC_IMX23
 269                 select DEBUG_UART_PL01X
 270                 help
 271                   Say Y here if you want kernel low-level debugging support
 272                   on i.MX23.
 273
 274         config DEBUG_IMX25_UART
 275                 bool "i.MX25 Debug UART"
 276                 depends on SOC_IMX25
 277                 help
 278                   Say Y here if you want kernel low-level debugging support
 279                   on i.MX25.
 280
 281         config DEBUG_IMX21_IMX27_UART
 282                 bool "i.MX21 and i.MX27 Debug UART"
 283                 depends on SOC_IMX21 || SOC_IMX27
 284                 help
 285                   Say Y here if you want kernel low-level debugging support
 286                   on i.MX21 or i.MX27.
 287
 288         config DEBUG_IMX28_UART
 289                 bool "i.MX28 Debug UART"
 290                 depends on SOC_IMX28
 291                 select DEBUG_UART_PL01X
 292                 help
 293                   Say Y here if you want kernel low-level debugging support
 294                   on i.MX28.
 295
 296         config DEBUG_IMX31_UART
 297                 bool "i.MX31 Debug UART"
 298                 depends on SOC_IMX31
 299                 help
 300                   Say Y here if you want kernel low-level debugging support
 301                   on i.MX31.
 302
 303         config DEBUG_IMX35_UART
 304                 bool "i.MX35 Debug UART"
 305                 depends on SOC_IMX35
 306                 help
 307                   Say Y here if you want kernel low-level debugging support
 308                   on i.MX35.
 309
 310         config DEBUG_IMX50_UART
 311                 bool "i.MX50 Debug UART"
 312                 depends on SOC_IMX50
 313                 help
 314                   Say Y here if you want kernel low-level debugging support
 315                   on i.MX50.
 316
 317         config DEBUG_IMX51_UART
 318                 bool "i.MX51 Debug UART"
 319                 depends on SOC_IMX51
 320                 help
 321                   Say Y here if you want kernel low-level debugging support
 322                   on i.MX51.
 323
 324         config DEBUG_IMX53_UART
 325                 bool "i.MX53 Debug UART"
 326                 depends on SOC_IMX53
 327                 help
 328                   Say Y here if you want kernel low-level debugging support
 329                   on i.MX53.
 330
 331         config DEBUG_IMX6Q_UART
 332                 bool "i.MX6Q/DL Debug UART"
 333                 depends on SOC_IMX6Q
 334                 help
 335                   Say Y here if you want kernel low-level debugging support
 336                   on i.MX6Q/DL.
 337
 338         config DEBUG_IMX6SL_UART
 339                 bool "i.MX6SL Debug UART"
 340                 depends on SOC_IMX6SL
 341                 help
 342                   Say Y here if you want kernel low-level debugging support
 343                   on i.MX6SL.
 344
 345         config DEBUG_IMX6SX_UART
 346                 bool "i.MX6SX Debug UART"
 347                 depends on SOC_IMX6SX
 348                 help
 349                   Say Y here if you want kernel low-level debugging support
 350                   on i.MX6SX.
 351
 352         config DEBUG_KEYSTONE_UART0
 353                 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
 354                 depends on ARCH_KEYSTONE
 355                 select DEBUG_UART_8250
 356                 help
 357                   Say Y here if you want the debug print routines to direct
 358                   their output to UART0 serial port on KEYSTONE2 devices.
 359
 360         config DEBUG_KEYSTONE_UART1
 361                 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
 362                 depends on ARCH_KEYSTONE
 363                 select DEBUG_UART_8250
 364                 help
 365                   Say Y here if you want the debug print routines to direct
 366                   their output to UART1 serial port on KEYSTONE2 devices.
 367
 368         config DEBUG_MESON_UARTAO
 369                 bool "Kernel low-level debugging via Meson6 UARTAO"
 370                 depends on ARCH_MESON
 371                 help
 372                   Say Y here if you want kernel low-lever debugging support
 373                   on Amlogic Meson6 based platforms on the UARTAO.
 374
 375         config DEBUG_MMP_UART2
 376                 bool "Kernel low-level debugging message via MMP UART2"
 377                 depends on ARCH_MMP
 378                 select DEBUG_UART_8250
 379                 help
 380                   Say Y here if you want kernel low-level debugging support
 381                   on MMP UART2.
 382
 383         config DEBUG_MMP_UART3
 384                 bool "Kernel low-level debugging message via MMP UART3"
 385                 depends on ARCH_MMP
 386                 select DEBUG_UART_8250
 387                 help
 388                   Say Y here if you want kernel low-level debugging support
 389                   on MMP UART3.
 390
 391         config DEBUG_MSM_UART
 392                 bool "Kernel low-level debugging messages via MSM UART"
 393                 depends on ARCH_MSM
 394                 help
 395                   Say Y here if you want the debug print routines to direct
 396                   their output to the serial port on MSM devices.
 397
 398                   ARCH                DEBUG_UART_PHYS   DEBUG_UART_BASE   #
 399                   MSM7X00A, QSD8X50   0xa9a00000        0xe1000000        UART1
 400                   MSM7X00A, QSD8X50   0xa9b00000        0xe1000000        UART2
 401                   MSM7X00A, QSD8X50   0xa9c00000        0xe1000000        UART3
 402
 403                   MSM7X30             0xaca00000        0xe1000000        UART1
 404                   MSM7X30             0xacb00000        0xe1000000        UART2
 405                   MSM7X30             0xacc00000        0xe1000000        UART3
 406
 407                   Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
 408                   options based on your needs.
 409
 410         config DEBUG_QCOM_UARTDM
 411                 bool "Kernel low-level debugging messages via QCOM UARTDM"
 412                 depends on ARCH_QCOM
 413                 help
 414                   Say Y here if you want the debug print routines to direct
 415                   their output to the serial port on Qualcomm devices.
 416
 417                   ARCH      DEBUG_UART_PHYS   DEBUG_UART_BASE
 418                   APQ8084   0xf995e000        0xfa75e000
 419                   MSM8X60   0x19c40000        0xf0040000
 420                   MSM8960   0x16440000        0xf0040000
 421                   MSM8974   0xf991e000        0xfa71e000
 422
 423                   Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
 424                   options based on your needs.
 425
 426         config DEBUG_MVEBU_UART
 427                 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
 428                 depends on ARCH_MVEBU
 429                 select DEBUG_UART_8250
 430                 help
 431                   Say Y here if you want kernel low-level debugging support
 432                   on MVEBU based platforms.
 433
 434                   This option should be used with the old bootloaders
 435                   that left the internal registers mapped at
 436                   0xd0000000. As of today, this is the case on
 437                   platforms such as the Globalscale Mirabox or the
 438                   Plathome OpenBlocks AX3, when using the original
 439                   bootloader.
 440
 441                   If the wrong DEBUG_MVEBU_UART* option is selected,
 442                   when u-boot hands over to the kernel, the system
 443                   silently crashes, with no serial output at all.
 444
 445         config DEBUG_MVEBU_UART_ALTERNATE
 446                 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
 447                 depends on ARCH_MVEBU
 448                 select DEBUG_UART_8250
 449                 help
 450                   Say Y here if you want kernel low-level debugging support
 451                   on MVEBU based platforms.
 452
 453                   This option should be used with the new bootloaders
 454                   that remap the internal registers at 0xf1000000.
 455
 456                   If the wrong DEBUG_MVEBU_UART* option is selected,
 457                   when u-boot hands over to the kernel, the system
 458                   silently crashes, with no serial output at all.
 459
 460         config DEBUG_VF_UART
 461                 bool "Vybrid UART"
 462                 depends on SOC_VF610
 463                 help
 464                   Say Y here if you want kernel low-level debugging support
 465                   on Vybrid based platforms.
 466
 467         config DEBUG_NOMADIK_UART
 468                 bool "Kernel low-level debugging messages via NOMADIK UART"
 469                 depends on ARCH_NOMADIK
 470                 select DEBUG_UART_PL01X
 471                 help
 472                   Say Y here if you want kernel low-level debugging support
 473                   on NOMADIK based platforms.
 474
 475         config DEBUG_NSPIRE_CLASSIC_UART
 476                 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
 477                 depends on ARCH_NSPIRE
 478                 select DEBUG_UART_8250
 479                 help
 480                   Say Y here if you want kernel low-level debugging support
 481                   on TI-NSPIRE classic models.
 482
 483         config DEBUG_NSPIRE_CX_UART
 484                 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
 485                 depends on ARCH_NSPIRE
 486                 select DEBUG_UART_PL01X
 487                 help
 488                   Say Y here if you want kernel low-level debugging support
 489                   on TI-NSPIRE CX models.
 490
 491         config DEBUG_OMAP2UART1
 492                 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
 493                 depends on ARCH_OMAP2PLUS
 494                 select DEBUG_OMAP2PLUS_UART
 495                 help
 496                   This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
 497                   omap3 torpedo and 3530 lv som.
 498
 499         config DEBUG_OMAP2UART2
 500                 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
 501                 depends on ARCH_OMAP2PLUS
 502                 select DEBUG_OMAP2PLUS_UART
 503
 504         config DEBUG_OMAP2UART3
 505                 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
 506                 depends on ARCH_OMAP2PLUS
 507                 select DEBUG_OMAP2PLUS_UART
 508
 509         config DEBUG_OMAP3UART3
 510                 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
 511                 depends on ARCH_OMAP2PLUS
 512                 select DEBUG_OMAP2PLUS_UART
 513                 help
 514                   This covers at least cm_t3x, beagle, crane, devkit8000,
 515                   igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
 516                   and 3517evm.
 517
 518         config DEBUG_OMAP4UART3
 519                 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
 520                 depends on ARCH_OMAP2PLUS
 521                 select DEBUG_OMAP2PLUS_UART
 522
 523         config DEBUG_OMAP3UART4
 524                 bool "Kernel low-level debugging messages via OMAP36XX UART4"
 525                 depends on ARCH_OMAP2PLUS
 526                 select DEBUG_OMAP2PLUS_UART
 527
 528         config DEBUG_OMAP4UART4
 529                 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
 530                 depends on ARCH_OMAP2PLUS
 531                 select DEBUG_OMAP2PLUS_UART
 532
 533         config DEBUG_TI81XXUART1
 534                 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
 535                 depends on ARCH_OMAP2PLUS
 536                 select DEBUG_OMAP2PLUS_UART
 537
 538         config DEBUG_TI81XXUART2
 539                 bool "Kernel low-level debugging messages via TI81XX UART2"
 540                 depends on ARCH_OMAP2PLUS
 541                 select DEBUG_OMAP2PLUS_UART
 542
 543         config DEBUG_TI81XXUART3
 544                 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
 545                 depends on ARCH_OMAP2PLUS
 546                 select DEBUG_OMAP2PLUS_UART
 547
 548         config DEBUG_AM33XXUART1
 549                 bool "Kernel low-level debugging messages via AM33XX UART1"
 550                 depends on ARCH_OMAP2PLUS
 551                 select DEBUG_OMAP2PLUS_UART
 552
 553         config DEBUG_ZOOM_UART
 554                 bool "Kernel low-level debugging messages via Zoom2/3 UART"
 555                 depends on ARCH_OMAP2PLUS
 556                 select DEBUG_OMAP2PLUS_UART
 557
 558         config DEBUG_PICOXCELL_UART
 559                 depends on ARCH_PICOXCELL
 560                 bool "Use PicoXcell UART for low-level debug"
 561                 select DEBUG_UART_8250
 562                 help
 563                   Say Y here if you want kernel low-level debugging support
 564                   on PicoXcell based platforms.
 565
 566         config DEBUG_PXA_UART1
 567                 depends on ARCH_PXA
 568                 bool "Use PXA UART1 for low-level debug"
 569                 select DEBUG_UART_8250
 570                 help
 571                   Say Y here if you want kernel low-level debugging support
 572                   on PXA UART1.
 573
 574         config DEBUG_REALVIEW_STD_PORT
 575                 bool "RealView Default UART"
 576                 depends on ARCH_REALVIEW
 577                 select DEBUG_UART_PL01X
 578                 help
 579                   Say Y here if you want the debug print routines to direct
 580                   their output to the serial port on RealView EB, PB11MP, PBA8
 581                   and PBX platforms.
 582
 583         config DEBUG_REALVIEW_PB1176_PORT
 584                 bool "RealView PB1176 UART"
 585                 depends on MACH_REALVIEW_PB1176
 586                 select DEBUG_UART_PL01X
 587                 help
 588                   Say Y here if you want the debug print routines to direct
 589                   their output to the standard serial port on the RealView
 590                   PB1176 platform.
 591
 592         config DEBUG_RK29_UART0
 593                 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
 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_RK29_UART1
 601                 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
 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_RK29_UART2
 609                 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
 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_RK3X_UART0
 617                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
 618                 depends on ARCH_ROCKCHIP
 619                 select DEBUG_UART_8250
 620                 help
 621                   Say Y here if you want kernel low-level debugging support
 622                   on Rockchip based platforms.
 623
 624         config DEBUG_RK3X_UART1
 625                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
 626                 depends on ARCH_ROCKCHIP
 627                 select DEBUG_UART_8250
 628                 help
 629                   Say Y here if you want kernel low-level debugging support
 630                   on Rockchip based platforms.
 631
 632         config DEBUG_RK3X_UART2
 633                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
 634                 depends on ARCH_ROCKCHIP
 635                 select DEBUG_UART_8250
 636                 help
 637                   Say Y here if you want kernel low-level debugging support
 638                   on Rockchip based platforms.
 639
 640         config DEBUG_RK3X_UART3
 641                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
 642                 depends on ARCH_ROCKCHIP
 643                 select DEBUG_UART_8250
 644                 help
 645                   Say Y here if you want kernel low-level debugging support
 646                   on Rockchip based platforms.
 647
 648         config DEBUG_RK32_UART2
 649                 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
 650                 depends on ARCH_ROCKCHIP
 651                 select DEBUG_UART_8250
 652                 help
 653                   Say Y here if you want kernel low-level debugging support
 654                   on Rockchip RK32xx based platforms.
 655
 656         config DEBUG_R7S72100_SCIF2
 657                 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
 658                 depends on ARCH_R7S72100
 659                 help
 660                   Say Y here if you want kernel low-level debugging support
 661                   via SCIF2 on Renesas RZ/A1H (R7S72100).
 662
 663         config DEBUG_RCAR_GEN1_SCIF0
 664                 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
 665                 depends on ARCH_R8A7778
 666                 help
 667                   Say Y here if you want kernel low-level debugging support
 668                   via SCIF0 on Renesas R-Car M1A (R8A7778).
 669
 670         config DEBUG_RCAR_GEN1_SCIF2
 671                 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
 672                 depends on ARCH_R8A7779
 673                 help
 674                   Say Y here if you want kernel low-level debugging support
 675                   via SCIF2 on Renesas R-Car H1 (R8A7779).
 676
 677         config DEBUG_RCAR_GEN2_SCIF0
 678                 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
 679                 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
 680                 help
 681                   Say Y here if you want kernel low-level debugging support
 682                   via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
 683                   M2-N (R8A7793).
 684
 685         config DEBUG_RCAR_GEN2_SCIF2
 686                 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
 687                 depends on ARCH_R8A7794
 688                 help
 689                   Say Y here if you want kernel low-level debugging support
 690                   via SCIF2 on Renesas R-Car E2 (R8A7794).
 691
 692         config DEBUG_RMOBILE_SCIFA0
 693                 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
 694                 depends on ARCH_R8A73A4 || ARCH_SH7372
 695                 help
 696                   Say Y here if you want kernel low-level debugging support
 697                   via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
 698                   AP4 (SH7372).
 699
 700         config DEBUG_RMOBILE_SCIFA1
 701                 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
 702                 depends on ARCH_R8A7740
 703                 help
 704                   Say Y here if you want kernel low-level debugging support
 705                   via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
 706
 707         config DEBUG_RMOBILE_SCIFA4
 708                 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
 709                 depends on ARCH_SH73A0
 710                 help
 711                   Say Y here if you want kernel low-level debugging support
 712                   via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
 713
 714         config DEBUG_S3C_UART0
 715                 depends on PLAT_SAMSUNG
 716                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 717                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
 718                 select DEBUG_S5PV210_UART if ARCH_S5PV210
 719                 bool "Use Samsung S3C UART 0 for low-level debug"
 720                 help
 721                   Say Y here if you want the debug print routines to direct
 722                   their output to UART 0. The port must have been initialised
 723                   by the boot-loader before use.
 724
 725         config DEBUG_S3C_UART1
 726                 depends on PLAT_SAMSUNG
 727                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 728                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
 729                 select DEBUG_S5PV210_UART if ARCH_S5PV210
 730                 bool "Use Samsung S3C UART 1 for low-level debug"
 731                 help
 732                   Say Y here if you want the debug print routines to direct
 733                   their output to UART 1. The port must have been initialised
 734                   by the boot-loader before use.
 735
 736         config DEBUG_S3C_UART2
 737                 depends on PLAT_SAMSUNG
 738                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 739                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
 740                 select DEBUG_S5PV210_UART if ARCH_S5PV210
 741                 bool "Use Samsung S3C UART 2 for low-level debug"
 742                 help
 743                   Say Y here if you want the debug print routines to direct
 744                   their output to UART 2. The port must have been initialised
 745                   by the boot-loader before use.
 746
 747         config DEBUG_S3C_UART3
 748                 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
 749                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 750                 select DEBUG_S5PV210_UART if ARCH_S5PV210
 751                 bool "Use Samsung S3C UART 3 for low-level debug"
 752                 help
 753                   Say Y here if you want the debug print routines to direct
 754                   their output to UART 3. The port must have been initialised
 755                   by the boot-loader before use.
 756
 757         config DEBUG_S3C2410_UART0
 758                 depends on ARCH_S3C24XX
 759                 select DEBUG_S3C2410_UART
 760                 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
 761                 help
 762                   Say Y here if you want the debug print routines to direct
 763                   their output to UART 0. The port must have been initialised
 764                   by the boot-loader before use.
 765
 766         config DEBUG_S3C2410_UART1
 767                 depends on ARCH_S3C24XX
 768                 select DEBUG_S3C2410_UART
 769                 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
 770                 help
 771                   Say Y here if you want the debug print routines to direct
 772                   their output to UART 1. The port must have been initialised
 773                   by the boot-loader before use.
 774
 775         config DEBUG_S3C2410_UART2
 776                 depends on ARCH_S3C24XX
 777                 select DEBUG_S3C2410_UART
 778                 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
 779                 help
 780                   Say Y here if you want the debug print routines to direct
 781                   their output to UART 2. The port must have been initialised
 782                   by the boot-loader before use.
 783
 784         config DEBUG_SOCFPGA_UART
 785                 depends on ARCH_SOCFPGA
 786                 bool "Use SOCFPGA UART for low-level debug"
 787                 select DEBUG_UART_8250
 788                 help
 789                   Say Y here if you want kernel low-level debugging support
 790                   on SOCFPGA based platforms.
 791
 792         config DEBUG_SUNXI_UART0
 793                 bool "Kernel low-level debugging messages via sunXi UART0"
 794                 depends on ARCH_SUNXI
 795                 select DEBUG_UART_8250
 796                 help
 797                   Say Y here if you want kernel low-level debugging support
 798                   on Allwinner A1X based platforms on the UART0.
 799
 800         config DEBUG_SUNXI_UART1
 801                 bool "Kernel low-level debugging messages via sunXi UART1"
 802                 depends on ARCH_SUNXI
 803                 select DEBUG_UART_8250
 804                 help
 805                   Say Y here if you want kernel low-level debugging support
 806                   on Allwinner A1X based platforms on the UART1.
 807
 808         config DEBUG_SUNXI_R_UART
 809                 bool "Kernel low-level debugging messages via sunXi R_UART"
 810                 depends on MACH_SUN6I || MACH_SUN8I
 811                 select DEBUG_UART_8250
 812                 help
 813                   Say Y here if you want kernel low-level debugging support
 814                   on Allwinner A31/A23 based platforms on the R_UART.
 815
 816         config TEGRA_DEBUG_UART_AUTO_ODMDATA
 817                 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
 818                 depends on ARCH_TEGRA
 819                 select DEBUG_TEGRA_UART
 820                 help
 821                   Automatically determines which UART to use for low-level
 822                   debug based on the ODMDATA value. This value is part of
 823                   the BCT, and is written to the boot memory device using
 824                   nvflash, or other flashing tool.  When bits 19:18 are 3,
 825                   then bits 17:15 indicate which UART to use; 0/1/2/3/4
 826                   are UART A/B/C/D/E.
 827
 828         config TEGRA_DEBUG_UARTA
 829                 bool "Kernel low-level debugging messages via Tegra UART A"
 830                 depends on ARCH_TEGRA
 831                 select DEBUG_TEGRA_UART
 832                 help
 833                   Say Y here if you want kernel low-level debugging support
 834                   on Tegra based platforms.
 835
 836         config TEGRA_DEBUG_UARTB
 837                 bool "Kernel low-level debugging messages via Tegra UART B"
 838                 depends on ARCH_TEGRA
 839                 select DEBUG_TEGRA_UART
 840                 help
 841                   Say Y here if you want kernel low-level debugging support
 842                   on Tegra based platforms.
 843
 844         config TEGRA_DEBUG_UARTC
 845                 bool "Kernel low-level debugging messages via Tegra UART C"
 846                 depends on ARCH_TEGRA
 847                 select DEBUG_TEGRA_UART
 848                 help
 849                   Say Y here if you want kernel low-level debugging support
 850                   on Tegra based platforms.
 851
 852         config TEGRA_DEBUG_UARTD
 853                 bool "Kernel low-level debugging messages via Tegra UART D"
 854                 depends on ARCH_TEGRA
 855                 select DEBUG_TEGRA_UART
 856                 help
 857                   Say Y here if you want kernel low-level debugging support
 858                   on Tegra based platforms.
 859
 860         config TEGRA_DEBUG_UARTE
 861                 bool "Kernel low-level debugging messages via Tegra UART E"
 862                 depends on ARCH_TEGRA
 863                 select DEBUG_TEGRA_UART
 864                 help
 865                   Say Y here if you want kernel low-level debugging support
 866                   on Tegra based platforms.
 867
 868         config DEBUG_SIRFPRIMA2_UART1
 869                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
 870                 depends on ARCH_PRIMA2
 871                 help
 872                   Say Y here if you want the debug print routines to direct
 873                   their output to the uart1 port on SiRFprimaII devices.
 874
 875         config DEBUG_SIRFMARCO_UART1
 876                 bool "Kernel low-level debugging messages via SiRFmarco UART1"
 877                 depends on ARCH_MARCO
 878                 help
 879                   Say Y here if you want the debug print routines to direct
 880                   their output to the uart1 port on SiRFmarco devices.
 881
 882         config STIH41X_DEBUG_ASC2
 883                 bool "Use StiH415/416 ASC2 UART for low-level debug"
 884                 depends on ARCH_STI
 885                 select DEBUG_STI_UART
 886                 help
 887                   Say Y here if you want kernel low-level debugging support
 888                   on STiH415/416 based platforms like b2000, which has
 889                   default UART wired up to ASC2.
 890
 891                   If unsure, say N.
 892
 893         config STIH41X_DEBUG_SBC_ASC1
 894                 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
 895                 depends on ARCH_STI
 896                 select DEBUG_STI_UART
 897                 help
 898                   Say Y here if you want kernel low-level debugging support
 899                   on STiH415/416 based platforms like b2020. which has
 900                   default UART wired up to SBC ASC1.
 901
 902                   If unsure, say N.
 903
 904         config DEBUG_U300_UART
 905                 bool "Kernel low-level debugging messages via U300 UART0"
 906                 depends on ARCH_U300
 907                 select DEBUG_UART_PL01X
 908                 help
 909                   Say Y here if you want the debug print routines to direct
 910                   their output to the uart port on U300 devices.
 911
 912         config DEBUG_UX500_UART
 913                 depends on ARCH_U8500
 914                 bool "Use Ux500 UART for low-level debug"
 915                 help
 916                   Say Y here if you want kernel low-level debugging support
 917                   on Ux500 based platforms.
 918
 919         config DEBUG_MT6589_UART0
 920                 bool "Mediatek mt6589 UART0"
 921                 depends on ARCH_MEDIATEK
 922                 select DEBUG_UART_8250
 923                 help
 924                   Say Y here if you want kernel low-level debugging support
 925                   for Mediatek mt6589 based platforms on UART0.
 926
 927         config DEBUG_VEXPRESS_UART0_DETECT
 928                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
 929                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
 930                 help
 931                   This option enables a simple heuristic which tries to determine
 932                   the motherboard's memory map variant (original or RS1) and then
 933                   choose the relevant UART0 base address.
 934
 935                   Note that this will only work with standard A-class core tiles,
 936                   and may fail with non-standard SMM or custom software models.
 937
 938         config DEBUG_VEXPRESS_UART0_CA9
 939                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
 940                 depends on ARCH_VEXPRESS
 941                 select DEBUG_UART_PL01X
 942                 help
 943                   This option selects UART0 at 0x10009000. Except for custom models,
 944                   this applies only to the V2P-CA9 tile.
 945
 946         config DEBUG_VEXPRESS_UART0_RS1
 947                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
 948                 depends on ARCH_VEXPRESS
 949                 select DEBUG_UART_PL01X
 950                 help
 951                   This option selects UART0 at 0x1c090000. This applies to most
 952                   of the tiles using the RS1 memory map, including all new A-class
 953                   core tiles, FPGA-based SMMs and software models.
 954
 955         config DEBUG_VEXPRESS_UART0_CRX
 956                 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
 957                 depends on ARCH_VEXPRESS && !MMU
 958                 select DEBUG_UART_PL01X
 959                 help
 960                   This option selects UART0 at 0xb0090000. This is appropriate for
 961                   Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
 962
 963         config DEBUG_VT8500_UART0
 964                 bool "Use UART0 on VIA/Wondermedia SoCs"
 965                 depends on ARCH_VT8500
 966                 help
 967                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
 968                   devices, including VT8500, WM8505, WM8650 and WM8850.
 969
 970         config DEBUG_LL_UART_NONE
 971                 bool "No low-level debugging UART"
 972                 depends on !ARCH_MULTIPLATFORM
 973                 help
 974                   Say Y here if your platform doesn't provide a UART option
 975                   above. This relies on your platform choosing the right UART
 976                   definition internally in order for low-level debugging to
 977                   work.
 978
 979         config DEBUG_ICEDCC
 980                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
 981                 help
 982                   Say Y here if you want the debug print routines to direct
 983                   their output to the EmbeddedICE macrocell's DCC channel using
 984                   co-processor 14. This is known to work on the ARM9 style ICE
 985                   channel and on the XScale with the PEEDI.
 986
 987                   Note that the system will appear to hang during boot if there
 988                   is nothing connected to read from the DCC.
 989
 990         config DEBUG_SEMIHOSTING
 991                 bool "Kernel low-level debug output via semihosting I/O"
 992                 help
 993                   Semihosting enables code running on an ARM target to use
 994                   the I/O facilities on a host debugger/emulator through a
 995                   simple SVC call. The host debugger or emulator must have
 996                   semihosting enabled for the special svc call to be trapped
 997                   otherwise the kernel will crash.
 998
 999                   This is known to work with OpenOCD, as well as
1000                   ARM's Fast Models, or any other controlling environment
1001                   that implements semihosting.
1002
1003                   For more details about semihosting, please see
1004                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1005
1006         config DEBUG_LL_UART_8250
1007                 bool "Kernel low-level debugging via 8250 UART"
1008                 help
1009                   Say Y here if you wish the debug print routes to direct
1010                   their output to an 8250 UART.  You can use this option
1011                   to provide the parameters for the 8250 UART rather than
1012                   selecting one of the platform specific options above if
1013                   you know the parameters for the port.
1014
1015                   This option is preferred over the platform specific
1016                   options; the platform specific options are deprecated
1017                   and will be soon removed.
1018
1019         config DEBUG_LL_UART_EFM32
1020                 bool "Kernel low-level debugging via efm32 UART"
1021                 depends on ARCH_EFM32
1022                 help
1023                   Say Y here if you want the debug print routines to direct
1024                   their output to an UART or USART port on efm32 based
1025                   machines. Use the following addresses for DEBUG_UART_PHYS:
1026
1027                     0x4000c000 | USART0
1028                     0x4000c400 | USART1
1029                     0x4000c800 | USART2
1030                     0x4000e000 | UART0
1031                     0x4000e400 | UART1
1032
1033         config DEBUG_LL_UART_PL01X
1034                 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1035                 help
1036                   Say Y here if you wish the debug print routes to direct
1037                   their output to a PL01x Primecell UART.  You can use
1038                   this option to provide the parameters for the UART
1039                   rather than selecting one of the platform specific
1040                   options above if you know the parameters for the port.
1041
1042                   This option is preferred over the platform specific
1043                   options; the platform specific options are deprecated
1044                   and will be soon removed.
1045
1046 endchoice
1047
1048 config DEBUG_EXYNOS_UART
1049         bool
1050
1051 config DEBUG_S3C2410_UART
1052         bool
1053         select DEBUG_S3C24XX_UART
1054
1055 config DEBUG_S3C24XX_UART
1056         bool
1057
1058 config DEBUG_S5PV210_UART
1059         bool
1060
1061 config DEBUG_OMAP2PLUS_UART
1062         bool
1063         depends on ARCH_OMAP2PLUS
1064
1065 config DEBUG_IMX_UART_PORT
1066         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1067                                                 DEBUG_IMX25_UART || \
1068                                                 DEBUG_IMX21_IMX27_UART || \
1069                                                 DEBUG_IMX31_UART || \
1070                                                 DEBUG_IMX35_UART || \
1071                                                 DEBUG_IMX50_UART || \
1072                                                 DEBUG_IMX51_UART || \
1073                                                 DEBUG_IMX53_UART || \
1074                                                 DEBUG_IMX6Q_UART || \
1075                                                 DEBUG_IMX6SL_UART || \
1076                                                 DEBUG_IMX6SX_UART
1077         default 1
1078         depends on ARCH_MXC
1079         help
1080           Choose UART port on which kernel low-level debug messages
1081           should be output.
1082
1083 config DEBUG_VF_UART_PORT
1084         int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1085         default 1
1086         range 0 3
1087         depends on SOC_VF610
1088         help
1089           Choose UART port on which kernel low-level debug messages
1090           should be output.
1091
1092 config DEBUG_TEGRA_UART
1093         bool
1094         depends on ARCH_TEGRA
1095
1096 config DEBUG_STI_UART
1097         bool
1098         depends on ARCH_STI
1099
1100 config DEBUG_LL_INCLUDE
1101         string
1102         default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1103         default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1104         default "debug/meson.S" if DEBUG_MESON_UARTAO
1105         default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1106         default "debug/exynos.S" if DEBUG_EXYNOS_UART
1107         default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1108         default "debug/icedcc.S" if DEBUG_ICEDCC
1109         default "debug/imx.S" if DEBUG_IMX1_UART || \
1110                                  DEBUG_IMX25_UART || \
1111                                  DEBUG_IMX21_IMX27_UART || \
1112                                  DEBUG_IMX31_UART || \
1113                                  DEBUG_IMX35_UART || \
1114                                  DEBUG_IMX50_UART || \
1115                                  DEBUG_IMX51_UART || \
1116                                  DEBUG_IMX53_UART ||\
1117                                  DEBUG_IMX6Q_UART || \
1118                                  DEBUG_IMX6SL_UART || \
1119                                  DEBUG_IMX6SX_UART
1120         default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1121         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1122         default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1123         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1124         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1125         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1126         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1127         default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1128         default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1129         default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1130         default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1131         default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1132         default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1133         default "debug/sti.S" if DEBUG_STI_UART
1134         default "debug/tegra.S" if DEBUG_TEGRA_UART
1135         default "debug/ux500.S" if DEBUG_UX500_UART
1136         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1137         default "debug/vf.S" if DEBUG_VF_UART
1138         default "debug/vt8500.S" if DEBUG_VT8500_UART0
1139         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1140         default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1141         default "mach/debug-macro.S"
1142
1143 # Compatibility options for PL01x
1144 config DEBUG_UART_PL01X
1145         def_bool ARCH_EP93XX || \
1146                 ARCH_INTEGRATOR || \
1147                 ARCH_SPEAR3XX || \
1148                 ARCH_SPEAR6XX || \
1149                 ARCH_SPEAR13XX || \
1150                 ARCH_VERSATILE
1151
1152 # Compatibility options for 8250
1153 config DEBUG_UART_8250
1154         def_bool ARCH_DOVE || ARCH_EBSA110 || \
1155                 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1156                 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1157                 ARCH_IOP33X || ARCH_IXP4XX || \
1158                 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1159
1160 # Compatibility options for BCM63xx
1161 config DEBUG_UART_BCM63XX
1162         def_bool ARCH_BCM_63XX
1163
1164 config DEBUG_UART_PHYS
1165         hex "Physical base address of debug UART"
1166         default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1167         default 0x01c28000 if DEBUG_SUNXI_UART0
1168         default 0x01c28400 if DEBUG_SUNXI_UART1
1169         default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1170         default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1171         default 0x01f02800 if DEBUG_SUNXI_R_UART
1172         default 0x02530c00 if DEBUG_KEYSTONE_UART0
1173         default 0x02531000 if DEBUG_KEYSTONE_UART1
1174         default 0x03010fe0 if ARCH_RPC
1175         default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1176                                 DEBUG_VEXPRESS_UART0_CA9
1177         default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1178         default 0x10124000 if DEBUG_RK3X_UART0
1179         default 0x10126000 if DEBUG_RK3X_UART1
1180         default 0x101f1000 if ARCH_VERSATILE
1181         default 0x101fb000 if DEBUG_NOMADIK_UART
1182         default 0x11006000 if DEBUG_MT6589_UART0
1183         default 0x16000000 if ARCH_INTEGRATOR
1184         default 0x18000300 if DEBUG_BCM_5301X
1185         default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1186         default 0x20060000 if DEBUG_RK29_UART0
1187         default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1188         default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1189         default 0x20201000 if DEBUG_BCM2835
1190         default 0x3e000000 if DEBUG_BCM_KONA_UART
1191         default 0x4000e400 if DEBUG_LL_UART_EFM32
1192         default 0x40090000 if ARCH_LPC32XX
1193         default 0x40100000 if DEBUG_PXA_UART1
1194         default 0x42000000 if ARCH_GEMINI
1195         default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1196                                 DEBUG_S3C2410_UART0)
1197         default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1198                                 DEBUG_S3C2410_UART1)
1199         default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1200                                 DEBUG_S3C2410_UART2)
1201         default 0x78000000 if DEBUG_CNS3XXX
1202         default 0x7c0003f8 if FOOTBRIDGE
1203         default 0x78000000 if DEBUG_CNS3XXX
1204         default 0x80070000 if DEBUG_IMX23_UART
1205         default 0x80074000 if DEBUG_IMX28_UART
1206         default 0x80230000 if DEBUG_PICOXCELL_UART
1207         default 0x808c0000 if ARCH_EP93XX
1208         default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1209         default 0xa9a00000 if DEBUG_MSM_UART
1210         default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1211         default 0xc0013000 if DEBUG_U300_UART
1212         default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1213         default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1214         default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1215         default 0xd0012000 if DEBUG_MVEBU_UART
1216         default 0xc81004c0 if DEBUG_MESON_UARTAO
1217         default 0xd4017000 if DEBUG_MMP_UART2
1218         default 0xd4018000 if DEBUG_MMP_UART3
1219         default 0xe0000000 if ARCH_SPEAR13XX
1220         default 0xe4007000 if DEBUG_HIP04_UART
1221         default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1222         default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1223         default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1224         default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1225         default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1226         default 0xe8008000 if DEBUG_R7S72100_SCIF2
1227         default 0xf0000be0 if ARCH_EBSA110
1228         default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1229         default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1230                                 ARCH_ORION5X
1231         default 0xf7fc9000 if DEBUG_BERLIN_UART
1232         default 0xf8b00000 if DEBUG_HIX5HD2_UART
1233         default 0xf991e000 if DEBUG_QCOM_UARTDM
1234         default 0xfcb00000 if DEBUG_HI3620_UART
1235         default 0xfe800000 if ARCH_IOP32X
1236         default 0xff690000 if DEBUG_RK32_UART2
1237         default 0xffc02000 if DEBUG_SOCFPGA_UART
1238         default 0xffd82340 if ARCH_IOP13XX
1239         default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1240         default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1241         default 0xfff36000 if DEBUG_HIGHBANK_UART
1242         default 0xfffe8600 if DEBUG_UART_BCM63XX
1243         default 0xfffff700 if ARCH_IOP33X
1244         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1245                 DEBUG_LL_UART_EFM32 || \
1246                 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1247                 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1248                 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1249                 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1250                 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1251                 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1252                 DEBUG_UART_BCM63XX
1253
1254 config DEBUG_UART_VIRT
1255         hex "Virtual base address of debug UART"
1256         default 0xe0010fe0 if ARCH_RPC
1257         default 0xe1000000 if DEBUG_MSM_UART
1258         default 0xf0000be0 if ARCH_EBSA110
1259         default 0xf01fb000 if DEBUG_NOMADIK_UART
1260         default 0xf0201000 if DEBUG_BCM2835
1261         default 0xf1000300 if DEBUG_BCM_5301X
1262         default 0xf1006000 if DEBUG_MT6589_UART0
1263         default 0xf11f1000 if ARCH_VERSATILE
1264         default 0xf1600000 if ARCH_INTEGRATOR
1265         default 0xf1c28000 if DEBUG_SUNXI_UART0
1266         default 0xf1c28400 if DEBUG_SUNXI_UART1
1267         default 0xf1f02800 if DEBUG_SUNXI_R_UART
1268         default 0xf2100000 if DEBUG_PXA_UART1
1269         default 0xf4090000 if ARCH_LPC32XX
1270         default 0xf4200000 if ARCH_GEMINI
1271         default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1272                                 DEBUG_S3C2410_UART0)
1273         default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1274                                 DEBUG_S3C2410_UART1)
1275         default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1276                                 DEBUG_S3C2410_UART2)
1277         default 0xf7fc9000 if DEBUG_BERLIN_UART
1278         default 0xf8007000 if DEBUG_HIP04_UART
1279         default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1280         default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1281         default 0xfa71e000 if DEBUG_QCOM_UARTDM
1282         default 0xfb002000 if DEBUG_CNS3XXX
1283         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1284         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1285         default 0xfcfe8600 if DEBUG_UART_BCM63XX
1286         default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1287         default 0xfd000000 if ARCH_SPEAR13XX
1288         default 0xfd012000 if ARCH_MV78XX0
1289         default 0xfde12000 if ARCH_DOVE
1290         default 0xfe012000 if ARCH_ORION5X
1291         default 0xf31004c0 if DEBUG_MESON_UARTAO
1292         default 0xfe017000 if DEBUG_MMP_UART2
1293         default 0xfe018000 if DEBUG_MMP_UART3
1294         default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1295         default 0xfe230000 if DEBUG_PICOXCELL_UART
1296         default 0xfe300000 if DEBUG_BCM_KONA_UART
1297         default 0xfe800000 if ARCH_IOP32X
1298         default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1299         default 0xfeb24000 if DEBUG_RK3X_UART0
1300         default 0xfeb26000 if DEBUG_RK3X_UART1
1301         default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1302         default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1303         default 0xfec02000 if DEBUG_SOCFPGA_UART
1304         default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1305         default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1306         default 0xfec90000 if DEBUG_RK32_UART2
1307         default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1308         default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1309         default 0xfed60000 if DEBUG_RK29_UART0
1310         default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1311         default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1312         default 0xfedc0000 if ARCH_EP93XX
1313         default 0xfee003f8 if FOOTBRIDGE
1314         default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1315         default 0xfee82340 if ARCH_IOP13XX
1316         default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1317         default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1318         default 0xfef36000 if DEBUG_HIGHBANK_UART
1319         default 0xfefff700 if ARCH_IOP33X
1320         default 0xff003000 if DEBUG_U300_UART
1321         default DEBUG_UART_PHYS if !MMU
1322         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1323                 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1324                 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1325                 DEBUG_UART_BCM63XX
1326
1327 config DEBUG_UART_8250_SHIFT
1328         int "Register offset shift for the 8250 debug UART"
1329         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1330         default 0 if FOOTBRIDGE || ARCH_IOP32X
1331         default 2
1332
1333 config DEBUG_UART_8250_WORD
1334         bool "Use 32-bit accesses for 8250 UART"
1335         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1336         depends on DEBUG_UART_8250_SHIFT >= 2
1337         default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1338                 ARCH_KEYSTONE || \
1339                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1340                 DEBUG_DAVINCI_DA8XX_UART2 || \
1341                 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1342
1343 config DEBUG_UART_8250_FLOW_CONTROL
1344         bool "Enable flow control for 8250 UART"
1345         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1346         default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1347
1348 config DEBUG_UNCOMPRESS
1349         bool
1350         depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1351         default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1352                      (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1353         help
1354           This option influences the normal decompressor output for
1355           multiplatform kernels.  Normally, multiplatform kernels disable
1356           decompressor output because it is not possible to know where to
1357           send the decompressor output.
1358
1359           When this option is set, the selected DEBUG_LL output method
1360           will be re-used for normal decompressor output on multiplatform
1361           kernels.
1362
1363
1364 config UNCOMPRESS_INCLUDE
1365         string
1366         default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1367                                         PLAT_SAMSUNG || ARCH_EFM32
1368         default "mach/uncompress.h"
1369
1370 config EARLY_PRINTK
1371         bool "Early printk"
1372         depends on DEBUG_LL
1373         help
1374           Say Y here if you want to have an early console using the
1375           kernel low-level debugging functions. Add earlyprintk to your
1376           kernel parameters to enable this console.
1377
1378 config OC_ETM
1379         bool "On-chip ETM and ETB"
1380         depends on ARM_AMBA
1381         help
1382           Enables the on-chip embedded trace macrocell and embedded trace
1383           buffer driver that will allow you to collect traces of the
1384           kernel code.
1385
1386 config ARM_KPROBES_TEST
1387         tristate "Kprobes test module"
1388         depends on KPROBES && MODULES
1389         help
1390           Perform tests of kprobes API and instruction set simulation.
1391
1392 config PID_IN_CONTEXTIDR
1393         bool "Write the current PID to the CONTEXTIDR register"
1394         depends on CPU_COPY_V6
1395         help
1396           Enabling this option causes the kernel to write the current PID to
1397           the PROCID field of the CONTEXTIDR register, at the expense of some
1398           additional instructions during context switch. Say Y here only if you
1399           are planning to use hardware trace tools with this kernel.
1400
1401 config DEBUG_SET_MODULE_RONX
1402         bool "Set loadable kernel module data as NX and text as RO"
1403         depends on MODULES
1404         ---help---
1405           This option helps catch unintended modifications to loadable
1406           kernel module's text and read-only data. It also prevents execution
1407           of module data. Such protection may interfere with run-time code
1408           patching and dynamic kernel tracing - and they might also protect
1409           against certain classes of kernel exploits.
1410           If in doubt, say "N".
1411
1412 endmenu