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_KONA_UART
 110                 bool "Kernel low-level debugging messages via BCM KONA UART"
 111                 depends on ARCH_BCM
 112                 select DEBUG_UART_8250
 113                 help
 114                   Say Y here if you want kernel low-level debugging support
 115                   on Broadcom SoC platforms.
 116                   This low level debug works for Broadcom
 117                   mobile SoCs in the Kona family of chips (e.g. bcm28155,
 118                   bcm11351, etc...)
 119
 120         config DEBUG_BERLIN_UART
 121                 bool "Marvell Berlin SoC Debug UART"
 122                 depends on ARCH_BERLIN
 123                 select DEBUG_UART_8250
 124                 help
 125                   Say Y here if you want kernel low-level debugging support
 126                   on Marvell Berlin SoC based platforms.
 127
 128         config DEBUG_CLPS711X_UART1
 129                 bool "Kernel low-level debugging messages via UART1"
 130                 depends on ARCH_CLPS711X
 131                 help
 132                   Say Y here if you want the debug print routines to direct
 133                   their output to the first serial port on these devices.
 134
 135         config DEBUG_CLPS711X_UART2
 136                 bool "Kernel low-level debugging messages via UART2"
 137                 depends on ARCH_CLPS711X
 138                 help
 139                   Say Y here if you want the debug print routines to direct
 140                   their output to the second serial port on these devices.
 141
 142         config DEBUG_CNS3XXX
 143                 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
 144                 depends on ARCH_CNS3XXX
 145                 select DEBUG_UART_PL01X
 146                 help
 147                   Say Y here if you want the debug print routines to direct
 148                   their output to the CNS3xxx UART0.
 149
 150         config DEBUG_DAVINCI_DA8XX_UART1
 151                 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
 152                 depends on ARCH_DAVINCI_DA8XX
 153                 select DEBUG_UART_8250
 154                 help
 155                   Say Y here if you want the debug print routines to direct
 156                   their output to UART1 serial port on DaVinci DA8XX devices.
 157
 158         config DEBUG_DAVINCI_DA8XX_UART2
 159                 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
 160                 depends on ARCH_DAVINCI_DA8XX
 161                 select DEBUG_UART_8250
 162                 help
 163                   Say Y here if you want the debug print routines to direct
 164                   their output to UART2 serial port on DaVinci DA8XX devices.
 165
 166         config DEBUG_DAVINCI_DMx_UART0
 167                 bool "Kernel low-level debugging on DaVinci DMx using UART0"
 168                 depends on ARCH_DAVINCI_DMx
 169                 select DEBUG_UART_8250
 170                 help
 171                   Say Y here if you want the debug print routines to direct
 172                   their output to UART0 serial port on DaVinci DMx devices.
 173
 174         config DEBUG_DAVINCI_TNETV107X_UART1
 175                 bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
 176                 depends on ARCH_DAVINCI_TNETV107X
 177                 select DEBUG_UART_8250
 178                 help
 179                   Say Y here if you want the debug print routines to direct
 180                   their output to UART1 serial port on DaVinci TNETV107X
 181                   devices.
 182
 183         config DEBUG_ZYNQ_UART0
 184                 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
 185                 depends on ARCH_ZYNQ
 186                 help
 187                   Say Y here if you want the debug print routines to direct
 188                   their output to UART0 on the Zynq platform.
 189
 190         config DEBUG_ZYNQ_UART1
 191                 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
 192                 depends on ARCH_ZYNQ
 193                 help
 194                   Say Y here if you want the debug print routines to direct
 195                   their output to UART1 on the Zynq platform.
 196
 197                   If you have a ZC702 board and want early boot messages to
 198                   appear on the USB serial adaptor, select this option.
 199
 200         config DEBUG_DC21285_PORT
 201                 bool "Kernel low-level debugging messages via footbridge serial port"
 202                 depends on FOOTBRIDGE
 203                 help
 204                   Say Y here if you want the debug print routines to direct
 205                   their output to the serial port in the DC21285 (Footbridge).
 206
 207         config DEBUG_FOOTBRIDGE_COM1
 208                 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
 209                 depends on FOOTBRIDGE
 210                 help
 211                   Say Y here if you want the debug print routines to direct
 212                   their output to the 8250 at PCI COM1.
 213
 214         config DEBUG_HI3620_UART
 215                 bool "Hisilicon HI3620 Debug UART"
 216                 depends on ARCH_HI3xxx
 217                 select DEBUG_UART_PL01X
 218                 help
 219                   Say Y here if you want kernel low-level debugging support
 220                   on HI3620 UART.
 221
 222         config DEBUG_HI3716_UART
 223                 bool "Hisilicon Hi3716 Debug UART"
 224                 depends on ARCH_HI3xxx
 225                 select DEBUG_UART_PL01X
 226                 help
 227                   Say Y here if you want kernel low-level debugging support
 228                   on HI3716 UART.
 229
 230         config DEBUG_HIGHBANK_UART
 231                 bool "Kernel low-level debugging messages via Highbank UART"
 232                 depends on ARCH_HIGHBANK
 233                 select DEBUG_UART_PL01X
 234                 help
 235                   Say Y here if you want the debug print routines to direct
 236                   their output to the UART on Highbank based devices.
 237
 238         config DEBUG_IMX1_UART
 239                 bool "i.MX1 Debug UART"
 240                 depends on SOC_IMX1
 241                 help
 242                   Say Y here if you want kernel low-level debugging support
 243                   on i.MX1.
 244
 245         config DEBUG_IMX23_UART
 246                 bool "i.MX23 Debug UART"
 247                 depends on SOC_IMX23
 248                 select DEBUG_UART_PL01X
 249                 help
 250                   Say Y here if you want kernel low-level debugging support
 251                   on i.MX23.
 252
 253         config DEBUG_IMX25_UART
 254                 bool "i.MX25 Debug UART"
 255                 depends on SOC_IMX25
 256                 help
 257                   Say Y here if you want kernel low-level debugging support
 258                   on i.MX25.
 259
 260         config DEBUG_IMX21_IMX27_UART
 261                 bool "i.MX21 and i.MX27 Debug UART"
 262                 depends on SOC_IMX21 || SOC_IMX27
 263                 help
 264                   Say Y here if you want kernel low-level debugging support
 265                   on i.MX21 or i.MX27.
 266
 267         config DEBUG_IMX28_UART
 268                 bool "i.MX28 Debug UART"
 269                 depends on SOC_IMX28
 270                 select DEBUG_UART_PL01X
 271                 help
 272                   Say Y here if you want kernel low-level debugging support
 273                   on i.MX28.
 274
 275         config DEBUG_IMX31_UART
 276                 bool "i.MX31 Debug UART"
 277                 depends on SOC_IMX31
 278                 help
 279                   Say Y here if you want kernel low-level debugging support
 280                   on i.MX31.
 281
 282         config DEBUG_IMX35_UART
 283                 bool "i.MX35 Debug UART"
 284                 depends on SOC_IMX35
 285                 help
 286                   Say Y here if you want kernel low-level debugging support
 287                   on i.MX35.
 288
 289         config DEBUG_IMX50_UART
 290                 bool "i.MX50 Debug UART"
 291                 depends on SOC_IMX50
 292                 help
 293                   Say Y here if you want kernel low-level debugging support
 294                   on i.MX50.
 295
 296         config DEBUG_IMX51_UART
 297                 bool "i.MX51 Debug UART"
 298                 depends on SOC_IMX51
 299                 help
 300                   Say Y here if you want kernel low-level debugging support
 301                   on i.MX51.
 302
 303         config DEBUG_IMX53_UART
 304                 bool "i.MX53 Debug UART"
 305                 depends on SOC_IMX53
 306                 help
 307                   Say Y here if you want kernel low-level debugging support
 308                   on i.MX53.
 309
 310         config DEBUG_IMX6Q_UART
 311                 bool "i.MX6Q/DL Debug UART"
 312                 depends on SOC_IMX6Q
 313                 help
 314                   Say Y here if you want kernel low-level debugging support
 315                   on i.MX6Q/DL.
 316
 317         config DEBUG_IMX6SL_UART
 318                 bool "i.MX6SL Debug UART"
 319                 depends on SOC_IMX6SL
 320                 help
 321                   Say Y here if you want kernel low-level debugging support
 322                   on i.MX6SL.
 323
 324         config DEBUG_KEYSTONE_UART0
 325                 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
 326                 depends on ARCH_KEYSTONE
 327                 select DEBUG_UART_8250
 328                 help
 329                   Say Y here if you want the debug print routines to direct
 330                   their output to UART0 serial port on KEYSTONE2 devices.
 331
 332         config DEBUG_KEYSTONE_UART1
 333                 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
 334                 depends on ARCH_KEYSTONE
 335                 select DEBUG_UART_8250
 336                 help
 337                   Say Y here if you want the debug print routines to direct
 338                   their output to UART1 serial port on KEYSTONE2 devices.
 339
 340         config DEBUG_MMP_UART2
 341                 bool "Kernel low-level debugging message via MMP UART2"
 342                 depends on ARCH_MMP
 343                 select DEBUG_UART_8250
 344                 help
 345                   Say Y here if you want kernel low-level debugging support
 346                   on MMP UART2.
 347
 348         config DEBUG_MMP_UART3
 349                 bool "Kernel low-level debugging message via MMP UART3"
 350                 depends on ARCH_MMP
 351                 select DEBUG_UART_8250
 352                 help
 353                   Say Y here if you want kernel low-level debugging support
 354                   on MMP UART3.
 355
 356         config DEBUG_MSM_UART1
 357                 bool "Kernel low-level debugging messages via MSM UART1"
 358                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 359                 select DEBUG_MSM_UART
 360                 help
 361                   Say Y here if you want the debug print routines to direct
 362                   their output to the first serial port on MSM devices.
 363
 364         config DEBUG_MSM_UART2
 365                 bool "Kernel low-level debugging messages via MSM UART2"
 366                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 367                 select DEBUG_MSM_UART
 368                 help
 369                   Say Y here if you want the debug print routines to direct
 370                   their output to the second serial port on MSM devices.
 371
 372         config DEBUG_MSM_UART3
 373                 bool "Kernel low-level debugging messages via MSM UART3"
 374                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 375                 select DEBUG_MSM_UART
 376                 help
 377                   Say Y here if you want the debug print routines to direct
 378                   their output to the third serial port on MSM devices.
 379
 380         config DEBUG_MSM8660_UART
 381                 bool "Kernel low-level debugging messages via MSM 8660 UART"
 382                 depends on ARCH_MSM8X60
 383                 select MSM_HAS_DEBUG_UART_HS
 384                 select DEBUG_MSM_UART
 385                 help
 386                   Say Y here if you want the debug print routines to direct
 387                   their output to the serial port on MSM 8660 devices.
 388
 389         config DEBUG_MSM8960_UART
 390                 bool "Kernel low-level debugging messages via MSM 8960 UART"
 391                 depends on ARCH_MSM8960
 392                 select MSM_HAS_DEBUG_UART_HS
 393                 select DEBUG_MSM_UART
 394                 help
 395                   Say Y here if you want the debug print routines to direct
 396                   their output to the serial port on MSM 8960 devices.
 397
 398         config DEBUG_MSM8974_UART
 399                 bool "Kernel low-level debugging messages via MSM 8974 UART"
 400                 depends on ARCH_MSM8974
 401                 select MSM_HAS_DEBUG_UART_HS
 402                 select DEBUG_MSM_UART
 403                 help
 404                   Say Y here if you want the debug print routines to direct
 405                   their output to the serial port on MSM 8974 devices.
 406
 407         config DEBUG_MVEBU_UART
 408                 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
 409                 depends on ARCH_MVEBU
 410                 select DEBUG_UART_8250
 411                 help
 412                   Say Y here if you want kernel low-level debugging support
 413                   on MVEBU based platforms.
 414
 415                   This option should be used with the old bootloaders
 416                   that left the internal registers mapped at
 417                   0xd0000000. As of today, this is the case on
 418                   platforms such as the Globalscale Mirabox or the
 419                   Plathome OpenBlocks AX3, when using the original
 420                   bootloader.
 421
 422                   If the wrong DEBUG_MVEBU_UART* option is selected,
 423                   when u-boot hands over to the kernel, the system
 424                   silently crashes, with no serial output at all.
 425
 426         config DEBUG_MVEBU_UART_ALTERNATE
 427                 bool "Kernel low-level debugging messages via MVEBU UART (new 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 new bootloaders
 435                   that remap the internal registers at 0xf1000000.
 436
 437                   If the wrong DEBUG_MVEBU_UART* option is selected,
 438                   when u-boot hands over to the kernel, the system
 439                   silently crashes, with no serial output at all.
 440
 441         config DEBUG_VF_UART
 442                 bool "Vybrid UART"
 443                 depends on SOC_VF610
 444                 help
 445                   Say Y here if you want kernel low-level debugging support
 446                   on Vybrid based platforms.
 447
 448         config DEBUG_NOMADIK_UART
 449                 bool "Kernel low-level debugging messages via NOMADIK UART"
 450                 depends on ARCH_NOMADIK
 451                 select DEBUG_UART_PL01X
 452                 help
 453                   Say Y here if you want kernel low-level debugging support
 454                   on NOMADIK based platforms.
 455
 456         config DEBUG_NSPIRE_CLASSIC_UART
 457                 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
 458                 depends on ARCH_NSPIRE
 459                 select DEBUG_UART_8250
 460                 help
 461                   Say Y here if you want kernel low-level debugging support
 462                   on TI-NSPIRE classic models.
 463
 464         config DEBUG_NSPIRE_CX_UART
 465                 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
 466                 depends on ARCH_NSPIRE
 467                 select DEBUG_UART_PL01X
 468                 help
 469                   Say Y here if you want kernel low-level debugging support
 470                   on TI-NSPIRE CX models.
 471
 472         config DEBUG_OMAP2UART1
 473                 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
 474                 depends on ARCH_OMAP2PLUS
 475                 select DEBUG_OMAP2PLUS_UART
 476                 help
 477                   This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
 478                   omap3 torpedo and 3530 lv som.
 479
 480         config DEBUG_OMAP2UART2
 481                 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
 482                 depends on ARCH_OMAP2PLUS
 483                 select DEBUG_OMAP2PLUS_UART
 484
 485         config DEBUG_OMAP2UART3
 486                 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
 487                 depends on ARCH_OMAP2PLUS
 488                 select DEBUG_OMAP2PLUS_UART
 489
 490         config DEBUG_OMAP3UART3
 491                 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
 492                 depends on ARCH_OMAP2PLUS
 493                 select DEBUG_OMAP2PLUS_UART
 494                 help
 495                   This covers at least cm_t3x, beagle, crane, devkit8000,
 496                   igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
 497                   and 3517evm.
 498
 499         config DEBUG_OMAP4UART3
 500                 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
 501                 depends on ARCH_OMAP2PLUS
 502                 select DEBUG_OMAP2PLUS_UART
 503
 504         config DEBUG_OMAP3UART4
 505                 bool "Kernel low-level debugging messages via OMAP36XX UART4"
 506                 depends on ARCH_OMAP2PLUS
 507                 select DEBUG_OMAP2PLUS_UART
 508
 509         config DEBUG_OMAP4UART4
 510                 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
 511                 depends on ARCH_OMAP2PLUS
 512                 select DEBUG_OMAP2PLUS_UART
 513
 514         config DEBUG_TI81XXUART1
 515                 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
 516                 depends on ARCH_OMAP2PLUS
 517                 select DEBUG_OMAP2PLUS_UART
 518
 519         config DEBUG_TI81XXUART2
 520                 bool "Kernel low-level debugging messages via TI81XX UART2"
 521                 depends on ARCH_OMAP2PLUS
 522                 select DEBUG_OMAP2PLUS_UART
 523
 524         config DEBUG_TI81XXUART3
 525                 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
 526                 depends on ARCH_OMAP2PLUS
 527                 select DEBUG_OMAP2PLUS_UART
 528
 529         config DEBUG_AM33XXUART1
 530                 bool "Kernel low-level debugging messages via AM33XX UART1"
 531                 depends on ARCH_OMAP2PLUS
 532                 select DEBUG_OMAP2PLUS_UART
 533
 534         config DEBUG_ZOOM_UART
 535                 bool "Kernel low-level debugging messages via Zoom2/3 UART"
 536                 depends on ARCH_OMAP2PLUS
 537                 select DEBUG_OMAP2PLUS_UART
 538
 539         config DEBUG_PICOXCELL_UART
 540                 depends on ARCH_PICOXCELL
 541                 bool "Use PicoXcell UART for low-level debug"
 542                 select DEBUG_UART_8250
 543                 help
 544                   Say Y here if you want kernel low-level debugging support
 545                   on PicoXcell based platforms.
 546
 547         config DEBUG_PXA_UART1
 548                 depends on ARCH_PXA
 549                 bool "Use PXA UART1 for low-level debug"
 550                 select DEBUG_UART_8250
 551                 help
 552                   Say Y here if you want kernel low-level debugging support
 553                   on PXA UART1.
 554
 555         config DEBUG_REALVIEW_STD_PORT
 556                 bool "RealView Default UART"
 557                 depends on ARCH_REALVIEW
 558                 select DEBUG_UART_PL01X
 559                 help
 560                   Say Y here if you want the debug print routines to direct
 561                   their output to the serial port on RealView EB, PB11MP, PBA8
 562                   and PBX platforms.
 563
 564         config DEBUG_REALVIEW_PB1176_PORT
 565                 bool "RealView PB1176 UART"
 566                 depends on MACH_REALVIEW_PB1176
 567                 select DEBUG_UART_PL01X
 568                 help
 569                   Say Y here if you want the debug print routines to direct
 570                   their output to the standard serial port on the RealView
 571                   PB1176 platform.
 572
 573         config DEBUG_RK29_UART0
 574                 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
 575                 depends on ARCH_ROCKCHIP
 576                 select DEBUG_UART_8250
 577                 help
 578                   Say Y here if you want kernel low-level debugging support
 579                   on Rockchip based platforms.
 580
 581         config DEBUG_RK29_UART1
 582                 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
 583                 depends on ARCH_ROCKCHIP
 584                 select DEBUG_UART_8250
 585                 help
 586                   Say Y here if you want kernel low-level debugging support
 587                   on Rockchip based platforms.
 588
 589         config DEBUG_RK29_UART2
 590                 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
 591                 depends on ARCH_ROCKCHIP
 592                 select DEBUG_UART_8250
 593                 help
 594                   Say Y here if you want kernel low-level debugging support
 595                   on Rockchip based platforms.
 596
 597         config DEBUG_RK3X_UART0
 598                 bool "Kernel low-level debugging messages via Rockchip RK3X UART0"
 599                 depends on ARCH_ROCKCHIP
 600                 select DEBUG_UART_8250
 601                 help
 602                   Say Y here if you want kernel low-level debugging support
 603                   on Rockchip based platforms.
 604
 605         config DEBUG_RK3X_UART1
 606                 bool "Kernel low-level debugging messages via Rockchip RK3X UART1"
 607                 depends on ARCH_ROCKCHIP
 608                 select DEBUG_UART_8250
 609                 help
 610                   Say Y here if you want kernel low-level debugging support
 611                   on Rockchip based platforms.
 612
 613         config DEBUG_RK3X_UART2
 614                 bool "Kernel low-level debugging messages via Rockchip RK3X UART2"
 615                 depends on ARCH_ROCKCHIP
 616                 select DEBUG_UART_8250
 617                 help
 618                   Say Y here if you want kernel low-level debugging support
 619                   on Rockchip based platforms.
 620
 621         config DEBUG_RK3X_UART3
 622                 bool "Kernel low-level debugging messages via Rockchip RK3X UART3"
 623                 depends on ARCH_ROCKCHIP
 624                 select DEBUG_UART_8250
 625                 help
 626                   Say Y here if you want kernel low-level debugging support
 627                   on Rockchip based platforms.
 628
 629         config DEBUG_S3C_UART0
 630                 depends on PLAT_SAMSUNG
 631                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 632                 bool "Use S3C UART 0 for low-level debug"
 633                 help
 634                   Say Y here if you want the debug print routines to direct
 635                   their output to UART 0. The port must have been initialised
 636                   by the boot-loader before use.
 637
 638                   The uncompressor code port configuration is now handled
 639                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 640
 641         config DEBUG_S3C_UART1
 642                 depends on PLAT_SAMSUNG
 643                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 644                 bool "Use S3C UART 1 for low-level debug"
 645                 help
 646                   Say Y here if you want the debug print routines to direct
 647                   their output to UART 1. The port must have been initialised
 648                   by the boot-loader before use.
 649
 650                   The uncompressor code port configuration is now handled
 651                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 652
 653         config DEBUG_S3C_UART2
 654                 depends on PLAT_SAMSUNG
 655                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 656                 bool "Use S3C UART 2 for low-level debug"
 657                 help
 658                   Say Y here if you want the debug print routines to direct
 659                   their output to UART 2. The port must have been initialised
 660                   by the boot-loader before use.
 661
 662                   The uncompressor code port configuration is now handled
 663                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 664
 665         config DEBUG_S3C_UART3
 666                 depends on PLAT_SAMSUNG && ARCH_EXYNOS
 667                 select DEBUG_EXYNOS_UART
 668                 bool "Use S3C UART 3 for low-level debug"
 669                 help
 670                   Say Y here if you want the debug print routines to direct
 671                   their output to UART 3. The port must have been initialised
 672                   by the boot-loader before use.
 673
 674                   The uncompressor code port configuration is now handled
 675                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
 676
 677         config DEBUG_SOCFPGA_UART
 678                 depends on ARCH_SOCFPGA
 679                 bool "Use SOCFPGA UART for low-level debug"
 680                 select DEBUG_UART_8250
 681                 help
 682                   Say Y here if you want kernel low-level debugging support
 683                   on SOCFPGA based platforms.
 684
 685         config DEBUG_SUNXI_UART0
 686                 bool "Kernel low-level debugging messages via sunXi UART0"
 687                 depends on ARCH_SUNXI
 688                 select DEBUG_UART_8250
 689                 help
 690                   Say Y here if you want kernel low-level debugging support
 691                   on Allwinner A1X based platforms on the UART0.
 692
 693         config DEBUG_SUNXI_UART1
 694                 bool "Kernel low-level debugging messages via sunXi UART1"
 695                 depends on ARCH_SUNXI
 696                 select DEBUG_UART_8250
 697                 help
 698                   Say Y here if you want kernel low-level debugging support
 699                   on Allwinner A1X based platforms on the UART1.
 700
 701         config TEGRA_DEBUG_UART_AUTO_ODMDATA
 702                 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
 703                 depends on ARCH_TEGRA
 704                 select DEBUG_TEGRA_UART
 705                 help
 706                   Automatically determines which UART to use for low-level
 707                   debug based on the ODMDATA value. This value is part of
 708                   the BCT, and is written to the boot memory device using
 709                   nvflash, or other flashing tool.  When bits 19:18 are 3,
 710                   then bits 17:15 indicate which UART to use; 0/1/2/3/4
 711                   are UART A/B/C/D/E.
 712
 713         config TEGRA_DEBUG_UARTA
 714                 bool "Kernel low-level debugging messages via Tegra UART A"
 715                 depends on ARCH_TEGRA
 716                 select DEBUG_TEGRA_UART
 717                 help
 718                   Say Y here if you want kernel low-level debugging support
 719                   on Tegra based platforms.
 720
 721         config TEGRA_DEBUG_UARTB
 722                 bool "Kernel low-level debugging messages via Tegra UART B"
 723                 depends on ARCH_TEGRA
 724                 select DEBUG_TEGRA_UART
 725                 help
 726                   Say Y here if you want kernel low-level debugging support
 727                   on Tegra based platforms.
 728
 729         config TEGRA_DEBUG_UARTC
 730                 bool "Kernel low-level debugging messages via Tegra UART C"
 731                 depends on ARCH_TEGRA
 732                 select DEBUG_TEGRA_UART
 733                 help
 734                   Say Y here if you want kernel low-level debugging support
 735                   on Tegra based platforms.
 736
 737         config TEGRA_DEBUG_UARTD
 738                 bool "Kernel low-level debugging messages via Tegra UART D"
 739                 depends on ARCH_TEGRA
 740                 select DEBUG_TEGRA_UART
 741                 help
 742                   Say Y here if you want kernel low-level debugging support
 743                   on Tegra based platforms.
 744
 745         config TEGRA_DEBUG_UARTE
 746                 bool "Kernel low-level debugging messages via Tegra UART E"
 747                 depends on ARCH_TEGRA
 748                 select DEBUG_TEGRA_UART
 749                 help
 750                   Say Y here if you want kernel low-level debugging support
 751                   on Tegra based platforms.
 752
 753         config DEBUG_SIRFPRIMA2_UART1
 754                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
 755                 depends on ARCH_PRIMA2
 756                 help
 757                   Say Y here if you want the debug print routines to direct
 758                   their output to the uart1 port on SiRFprimaII devices.
 759
 760         config DEBUG_SIRFMARCO_UART1
 761                 bool "Kernel low-level debugging messages via SiRFmarco UART1"
 762                 depends on ARCH_MARCO
 763                 help
 764                   Say Y here if you want the debug print routines to direct
 765                   their output to the uart1 port on SiRFmarco devices.
 766
 767         config STIH41X_DEBUG_ASC2
 768                 bool "Use StiH415/416 ASC2 UART for low-level debug"
 769                 depends on ARCH_STI
 770                 select DEBUG_STI_UART
 771                 help
 772                   Say Y here if you want kernel low-level debugging support
 773                   on STiH415/416 based platforms like b2000, which has
 774                   default UART wired up to ASC2.
 775
 776                   If unsure, say N.
 777
 778         config STIH41X_DEBUG_SBC_ASC1
 779                 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
 780                 depends on ARCH_STI
 781                 select DEBUG_STI_UART
 782                 help
 783                   Say Y here if you want kernel low-level debugging support
 784                   on STiH415/416 based platforms like b2020. which has
 785                   default UART wired up to SBC ASC1.
 786
 787                   If unsure, say N.
 788
 789         config DEBUG_U300_UART
 790                 bool "Kernel low-level debugging messages via U300 UART0"
 791                 depends on ARCH_U300
 792                 select DEBUG_UART_PL01X
 793                 help
 794                   Say Y here if you want the debug print routines to direct
 795                   their output to the uart port on U300 devices.
 796
 797         config DEBUG_UX500_UART
 798                 depends on ARCH_U8500
 799                 bool "Use Ux500 UART for low-level debug"
 800                 help
 801                   Say Y here if you want kernel low-level debugging support
 802                   on Ux500 based platforms.
 803
 804         config DEBUG_VEXPRESS_UART0_DETECT
 805                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
 806                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
 807                 help
 808                   This option enables a simple heuristic which tries to determine
 809                   the motherboard's memory map variant (original or RS1) and then
 810                   choose the relevant UART0 base address.
 811
 812                   Note that this will only work with standard A-class core tiles,
 813                   and may fail with non-standard SMM or custom software models.
 814
 815         config DEBUG_VEXPRESS_UART0_CA9
 816                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
 817                 depends on ARCH_VEXPRESS
 818                 select DEBUG_UART_PL01X
 819                 help
 820                   This option selects UART0 at 0x10009000. Except for custom models,
 821                   this applies only to the V2P-CA9 tile.
 822
 823         config DEBUG_VEXPRESS_UART0_RS1
 824                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
 825                 depends on ARCH_VEXPRESS
 826                 select DEBUG_UART_PL01X
 827                 help
 828                   This option selects UART0 at 0x1c090000. This applies to most
 829                   of the tiles using the RS1 memory map, including all new A-class
 830                   core tiles, FPGA-based SMMs and software models.
 831
 832         config DEBUG_VEXPRESS_UART0_CRX
 833                 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
 834                 depends on ARCH_VEXPRESS && !MMU
 835                 select DEBUG_UART_PL01X
 836                 help
 837                   This option selects UART0 at 0xb0090000. This is appropriate for
 838                   Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
 839
 840         config DEBUG_VT8500_UART0
 841                 bool "Use UART0 on VIA/Wondermedia SoCs"
 842                 depends on ARCH_VT8500
 843                 help
 844                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
 845                   devices, including VT8500, WM8505, WM8650 and WM8850.
 846
 847         config DEBUG_LL_UART_NONE
 848                 bool "No low-level debugging UART"
 849                 depends on !ARCH_MULTIPLATFORM
 850                 help
 851                   Say Y here if your platform doesn't provide a UART option
 852                   above. This relies on your platform choosing the right UART
 853                   definition internally in order for low-level debugging to
 854                   work.
 855
 856         config DEBUG_ICEDCC
 857                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
 858                 help
 859                   Say Y here if you want the debug print routines to direct
 860                   their output to the EmbeddedICE macrocell's DCC channel using
 861                   co-processor 14. This is known to work on the ARM9 style ICE
 862                   channel and on the XScale with the PEEDI.
 863
 864                   Note that the system will appear to hang during boot if there
 865                   is nothing connected to read from the DCC.
 866
 867         config DEBUG_SEMIHOSTING
 868                 bool "Kernel low-level debug output via semihosting I/O"
 869                 help
 870                   Semihosting enables code running on an ARM target to use
 871                   the I/O facilities on a host debugger/emulator through a
 872                   simple SVC call. The host debugger or emulator must have
 873                   semihosting enabled for the special svc call to be trapped
 874                   otherwise the kernel will crash.
 875
 876                   This is known to work with OpenOCD, as well as
 877                   ARM's Fast Models, or any other controlling environment
 878                   that implements semihosting.
 879
 880                   For more details about semihosting, please see
 881                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
 882
 883         config DEBUG_LL_UART_8250
 884                 bool "Kernel low-level debugging via 8250 UART"
 885                 help
 886                   Say Y here if you wish the debug print routes to direct
 887                   their output to an 8250 UART.  You can use this option
 888                   to provide the parameters for the 8250 UART rather than
 889                   selecting one of the platform specific options above if
 890                   you know the parameters for the port.
 891
 892                   This option is preferred over the platform specific
 893                   options; the platform specific options are deprecated
 894                   and will be soon removed.
 895
 896         config DEBUG_LL_UART_EFM32
 897                 bool "Kernel low-level debugging via efm32 UART"
 898                 depends on ARCH_EFM32
 899                 help
 900                   Say Y here if you want the debug print routines to direct
 901                   their output to an UART or USART port on efm32 based
 902                   machines. Use the following addresses for DEBUG_UART_PHYS:
 903
 904                     0x4000c000 | USART0
 905                     0x4000c400 | USART1
 906                     0x4000c800 | USART2
 907                     0x4000e000 | UART0
 908                     0x4000e400 | UART1
 909
 910         config DEBUG_LL_UART_PL01X
 911                 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
 912                 help
 913                   Say Y here if you wish the debug print routes to direct
 914                   their output to a PL01x Primecell UART.  You can use
 915                   this option to provide the parameters for the UART
 916                   rather than selecting one of the platform specific
 917                   options above if you know the parameters for the port.
 918
 919                   This option is preferred over the platform specific
 920                   options; the platform specific options are deprecated
 921                   and will be soon removed.
 922
 923 endchoice
 924
 925 config DEBUG_EXYNOS_UART
 926         bool
 927
 928 config DEBUG_OMAP2PLUS_UART
 929         bool
 930         depends on ARCH_OMAP2PLUS
 931
 932 config DEBUG_IMX_UART_PORT
 933         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
 934                                                 DEBUG_IMX25_UART || \
 935                                                 DEBUG_IMX21_IMX27_UART || \
 936                                                 DEBUG_IMX31_UART || \
 937                                                 DEBUG_IMX35_UART || \
 938                                                 DEBUG_IMX50_UART || \
 939                                                 DEBUG_IMX51_UART || \
 940                                                 DEBUG_IMX53_UART || \
 941                                                 DEBUG_IMX6Q_UART || \
 942                                                 DEBUG_IMX6SL_UART
 943         default 1
 944         depends on ARCH_MXC
 945         help
 946           Choose UART port on which kernel low-level debug messages
 947           should be output.
 948
 949 config DEBUG_TEGRA_UART
 950         bool
 951         depends on ARCH_TEGRA
 952
 953 config DEBUG_STI_UART
 954         bool
 955         depends on ARCH_STI
 956
 957 config DEBUG_MSM_UART
 958         bool
 959         depends on ARCH_MSM
 960
 961 config DEBUG_LL_INCLUDE
 962         string
 963         default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
 964         default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
 965         default "debug/exynos.S" if DEBUG_EXYNOS_UART
 966         default "debug/efm32.S" if DEBUG_LL_UART_EFM32
 967         default "debug/icedcc.S" if DEBUG_ICEDCC
 968         default "debug/imx.S" if DEBUG_IMX1_UART || \
 969                                  DEBUG_IMX25_UART || \
 970                                  DEBUG_IMX21_IMX27_UART || \
 971                                  DEBUG_IMX31_UART || \
 972                                  DEBUG_IMX35_UART || \
 973                                  DEBUG_IMX50_UART || \
 974                                  DEBUG_IMX51_UART || \
 975                                  DEBUG_IMX53_UART ||\
 976                                  DEBUG_IMX6Q_UART || \
 977                                  DEBUG_IMX6SL_UART
 978         default "debug/msm.S" if DEBUG_MSM_UART
 979         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
 980         default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
 981         default "debug/sti.S" if DEBUG_STI_UART
 982         default "debug/tegra.S" if DEBUG_TEGRA_UART
 983         default "debug/ux500.S" if DEBUG_UX500_UART
 984         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
 985         default "debug/vf.S" if DEBUG_VF_UART
 986         default "debug/vt8500.S" if DEBUG_VT8500_UART0
 987         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
 988         default "mach/debug-macro.S"
 989
 990 # Compatibility options for PL01x
 991 config DEBUG_UART_PL01X
 992         def_bool ARCH_EP93XX || \
 993                 ARCH_INTEGRATOR || \
 994                 ARCH_SPEAR3XX || \
 995                 ARCH_SPEAR6XX || \
 996                 ARCH_SPEAR13XX || \
 997                 ARCH_VERSATILE
 998
 999 # Compatibility options for 8250
1000 config DEBUG_UART_8250
1001         def_bool ARCH_DOVE || ARCH_EBSA110 || \
1002                 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1003                 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1004                 ARCH_IOP33X || ARCH_IXP4XX || ARCH_KIRKWOOD || \
1005                 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1006
1007 config DEBUG_UART_PHYS
1008         hex "Physical base address of debug UART"
1009         default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1010         default 0x01c28000 if DEBUG_SUNXI_UART0
1011         default 0x01c28400 if DEBUG_SUNXI_UART1
1012         default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1013         default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1014         default 0x02530c00 if DEBUG_KEYSTONE_UART0
1015         default 0x02531000 if DEBUG_KEYSTONE_UART1
1016         default 0x03010fe0 if ARCH_RPC
1017         default 0x08108300 if DEBUG_DAVINCI_TNETV107X_UART1
1018         default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
1019                                 DEBUG_VEXPRESS_UART0_CA9
1020         default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1021         default 0x10124000 if DEBUG_RK3X_UART0
1022         default 0x10126000 if DEBUG_RK3X_UART1
1023         default 0x101f1000 if ARCH_VERSATILE
1024         default 0x101fb000 if DEBUG_NOMADIK_UART
1025         default 0x16000000 if ARCH_INTEGRATOR
1026         default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1027         default 0x20060000 if DEBUG_RK29_UART0
1028         default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1029         default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1030         default 0x20201000 if DEBUG_BCM2835
1031         default 0x3e000000 if DEBUG_BCM_KONA_UART
1032         default 0x4000e400 if DEBUG_LL_UART_EFM32
1033         default 0x40090000 if ARCH_LPC32XX
1034         default 0x40100000 if DEBUG_PXA_UART1
1035         default 0x42000000 if ARCH_GEMINI
1036         default 0x7c0003f8 if FOOTBRIDGE
1037         default 0x80230000 if DEBUG_PICOXCELL_UART
1038         default 0x80070000 if DEBUG_IMX23_UART
1039         default 0x80074000 if DEBUG_IMX28_UART
1040         default 0x808c0000 if ARCH_EP93XX
1041         default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1042         default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1043         default 0xc0013000 if DEBUG_U300_UART
1044         default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1045         default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1046         default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1047         default 0xd0012000 if DEBUG_MVEBU_UART
1048         default 0xd4017000 if DEBUG_MMP_UART2
1049         default 0xd4018000 if DEBUG_MMP_UART3
1050         default 0xe0000000 if ARCH_SPEAR13XX
1051         default 0xf0000be0 if ARCH_EBSA110
1052         default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1053         default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
1054                                 ARCH_ORION5X
1055         default 0xf7fc9000 if DEBUG_BERLIN_UART
1056         default 0xf8b00000 if DEBUG_HI3716_UART
1057         default 0xfcb00000 if DEBUG_HI3620_UART
1058         default 0xfe800000 if ARCH_IOP32X
1059         default 0xffc02000 if DEBUG_SOCFPGA_UART
1060         default 0xffd82340 if ARCH_IOP13XX
1061         default 0xfff36000 if DEBUG_HIGHBANK_UART
1062         default 0xfffff700 if ARCH_IOP33X
1063         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1064                 DEBUG_LL_UART_EFM32 || \
1065                 DEBUG_UART_8250 || DEBUG_UART_PL01X
1066
1067 config DEBUG_UART_VIRT
1068         hex "Virtual base address of debug UART"
1069         default 0xe0010fe0 if ARCH_RPC
1070         default 0xf0000be0 if ARCH_EBSA110
1071         default 0xf0009000 if DEBUG_CNS3XXX
1072         default 0xf01fb000 if DEBUG_NOMADIK_UART
1073         default 0xf0201000 if DEBUG_BCM2835
1074         default 0xf11f1000 if ARCH_VERSATILE
1075         default 0xf1600000 if ARCH_INTEGRATOR
1076         default 0xf1c28000 if DEBUG_SUNXI_UART0
1077         default 0xf1c28400 if DEBUG_SUNXI_UART1
1078         default 0xf2100000 if DEBUG_PXA_UART1
1079         default 0xf4090000 if ARCH_LPC32XX
1080         default 0xf4200000 if ARCH_GEMINI
1081         default 0xf7fc9000 if DEBUG_BERLIN_UART
1082         default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1083         default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1084         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1085         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1086         default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1087         default 0xfd000000 if ARCH_SPEAR13XX
1088         default 0xfd012000 if ARCH_MV78XX0
1089         default 0xfde12000 if ARCH_DOVE
1090         default 0xfe012000 if ARCH_ORION5X
1091         default 0xfe017000 if DEBUG_MMP_UART2
1092         default 0xfe018000 if DEBUG_MMP_UART3
1093         default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1094         default 0xfe230000 if DEBUG_PICOXCELL_UART
1095         default 0xfe300000 if DEBUG_BCM_KONA_UART
1096         default 0xfe800000 if ARCH_IOP32X
1097         default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
1098         default 0xfeb24000 if DEBUG_RK3X_UART0
1099         default 0xfeb26000 if DEBUG_RK3X_UART1
1100         default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1101         default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1102         default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1103         default 0xfed60000 if DEBUG_RK29_UART0
1104         default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1105         default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1106         default 0xfec02000 if DEBUG_SOCFPGA_UART
1107         default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1108         default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1109         default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1110         default 0xfed12000 if ARCH_KIRKWOOD
1111         default 0xfedc0000 if ARCH_EP93XX
1112         default 0xfee003f8 if FOOTBRIDGE
1113         default 0xfee08300 if DEBUG_DAVINCI_TNETV107X_UART1
1114         default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1115         default 0xfef36000 if DEBUG_HIGHBANK_UART
1116         default 0xfee82340 if ARCH_IOP13XX
1117         default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1118         default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1119         default 0xfefff700 if ARCH_IOP33X
1120         default 0xff003000 if DEBUG_U300_UART
1121         default DEBUG_UART_PHYS if !MMU
1122         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1123                 DEBUG_UART_8250 || DEBUG_UART_PL01X
1124
1125 config DEBUG_UART_8250_SHIFT
1126         int "Register offset shift for the 8250 debug UART"
1127         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1128         default 0 if FOOTBRIDGE || ARCH_IOP32X
1129         default 2
1130
1131 config DEBUG_UART_8250_WORD
1132         bool "Use 32-bit accesses for 8250 UART"
1133         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1134         depends on DEBUG_UART_8250_SHIFT >= 2
1135         default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1136                 ARCH_KEYSTONE || \
1137                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1138                 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_DAVINCI_TNETV107X_UART1 || \
1139                 DEBUG_BCM_KONA_UART
1140
1141 config DEBUG_UART_8250_FLOW_CONTROL
1142         bool "Enable flow control for 8250 UART"
1143         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1144         default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1145
1146 config DEBUG_UNCOMPRESS
1147         bool
1148         depends on ARCH_MULTIPLATFORM || ARCH_MSM
1149         default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1150                      (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1151         help
1152           This option influences the normal decompressor output for
1153           multiplatform kernels.  Normally, multiplatform kernels disable
1154           decompressor output because it is not possible to know where to
1155           send the decompressor output.
1156
1157           When this option is set, the selected DEBUG_LL output method
1158           will be re-used for normal decompressor output on multiplatform
1159           kernels.
1160
1161
1162 config UNCOMPRESS_INCLUDE
1163         string
1164         default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM
1165         default "mach/uncompress.h"
1166
1167 config EARLY_PRINTK
1168         bool "Early printk"
1169         depends on DEBUG_LL
1170         help
1171           Say Y here if you want to have an early console using the
1172           kernel low-level debugging functions. Add earlyprintk to your
1173           kernel parameters to enable this console.
1174
1175 config OC_ETM
1176         bool "On-chip ETM and ETB"
1177         depends on ARM_AMBA
1178         help
1179           Enables the on-chip embedded trace macrocell and embedded trace
1180           buffer driver that will allow you to collect traces of the
1181           kernel code.
1182
1183 config ARM_KPROBES_TEST
1184         tristate "Kprobes test module"
1185         depends on KPROBES && MODULES
1186         help
1187           Perform tests of kprobes API and instruction set simulation.
1188
1189 config PID_IN_CONTEXTIDR
1190         bool "Write the current PID to the CONTEXTIDR register"
1191         depends on CPU_COPY_V6
1192         help
1193           Enabling this option causes the kernel to write the current PID to
1194           the PROCID field of the CONTEXTIDR register, at the expense of some
1195           additional instructions during context switch. Say Y here only if you
1196           are planning to use hardware trace tools with this kernel.
1197
1198 config DEBUG_SET_MODULE_RONX
1199         bool "Set loadable kernel module data as NX and text as RO"
1200         depends on MODULES
1201         ---help---
1202           This option helps catch unintended modifications to loadable
1203           kernel module's text and read-only data. It also prevents execution
1204           of module data. Such protection may interfere with run-time code
1205           patching and dynamic kernel tracing - and they might also protect
1206           against certain classes of kernel exploits.
1207           If in doubt, say "N".
1208
1209 endmenu