linux/arch/arm/Kconfig.debug
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   1# SPDX-License-Identifier: GPL-2.0
   2
   3config ARM_PTDUMP_CORE
   4        def_bool n
   5
   6config ARM_PTDUMP_DEBUGFS
   7        bool "Export kernel pagetable layout to userspace via debugfs"
   8        depends on DEBUG_KERNEL
   9        depends on MMU
  10        select ARM_PTDUMP_CORE
  11        select DEBUG_FS
  12        help
  13          Say Y here if you want to show the kernel pagetable layout in a
  14          debugfs file. This information is only useful for kernel developers
  15          who are working in architecture specific areas of the kernel.
  16          It is probably not a good idea to enable this feature in a production
  17          kernel.
  18          If in doubt, say "N"
  19
  20config DEBUG_WX
  21        bool "Warn on W+X mappings at boot"
  22        depends on MMU
  23        select ARM_PTDUMP_CORE
  24        help
  25                Generate a warning if any W+X mappings are found at boot.
  26
  27                This is useful for discovering cases where the kernel is leaving
  28                W+X mappings after applying NX, as such mappings are a security risk.
  29
  30                Look for a message in dmesg output like this:
  31
  32                        arm/mm: Checked W+X mappings: passed, no W+X pages found.
  33
  34                or like this, if the check failed:
  35
  36                        arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
  37
  38                Note that even if the check fails, your kernel is possibly
  39                still fine, as W+X mappings are not a security hole in
  40                themselves, what they do is that they make the exploitation
  41                of other unfixed kernel bugs easier.
  42
  43                There is no runtime or memory usage effect of this option
  44                once the kernel has booted up - it's a one time check.
  45
  46                If in doubt, say "Y".
  47
  48choice
  49        prompt "Choose kernel unwinder"
  50        default UNWINDER_ARM if AEABI
  51        default UNWINDER_FRAME_POINTER if !AEABI
  52        help
  53          This determines which method will be used for unwinding kernel stack
  54          traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
  55          livepatch, lockdep, and more.
  56
  57config UNWINDER_FRAME_POINTER
  58        bool "Frame pointer unwinder"
  59        depends on !THUMB2_KERNEL
  60        select ARCH_WANT_FRAME_POINTERS
  61        select FRAME_POINTER
  62        help
  63          This option enables the frame pointer unwinder for unwinding
  64          kernel stack traces.
  65
  66config UNWINDER_ARM
  67        bool "ARM EABI stack unwinder"
  68        depends on AEABI && !FUNCTION_GRAPH_TRACER
  69        select ARM_UNWIND
  70        help
  71          This option enables stack unwinding support in the kernel
  72          using the information automatically generated by the
  73          compiler. The resulting kernel image is slightly bigger but
  74          the performance is not affected. Currently, this feature
  75          only works with EABI compilers.
  76
  77endchoice
  78
  79config ARM_UNWIND
  80        bool
  81
  82config FRAME_POINTER
  83        bool
  84
  85config DEBUG_USER
  86        bool "Verbose user fault messages"
  87        help
  88          When a user program crashes due to an exception, the kernel can
  89          print a brief message explaining what the problem was. This is
  90          sometimes helpful for debugging but serves no purpose on a
  91          production system. Most people should say N here.
  92
  93          In addition, you need to pass user_debug=N on the kernel command
  94          line to enable this feature.  N consists of the sum of:
  95
  96              1 - undefined instruction events
  97              2 - system calls
  98              4 - invalid data aborts
  99              8 - SIGSEGV faults
 100             16 - SIGBUS faults
 101
 102# These options are only for real kernel hackers who want to get their hands dirty.
 103config DEBUG_LL
 104        bool "Kernel low-level debugging functions (read help!)"
 105        depends on DEBUG_KERNEL
 106        help
 107          Say Y here to include definitions of printascii, printch, printhex
 108          in the kernel.  This is helpful if you are debugging code that
 109          executes before the console is initialized.
 110
 111          Note that selecting this option will limit the kernel to a single
 112          UART definition, as specified below. Attempting to boot the kernel
 113          image on a different platform *will not work*, so this option should
 114          not be enabled for kernels that are intended to be portable.
 115
 116choice
 117        prompt "Kernel low-level debugging port"
 118        depends on DEBUG_LL
 119
 120        config DEBUG_ALPINE_UART0
 121                bool "Kernel low-level debugging messages via Alpine UART0"
 122                depends on ARCH_ALPINE
 123                select DEBUG_UART_8250
 124                help
 125                  Say Y here if you want kernel low-level debugging support
 126                  on Alpine based platforms.
 127
 128        config DEBUG_ASM9260_UART
 129                bool "Kernel low-level debugging via asm9260 UART"
 130                depends on MACH_ASM9260
 131                help
 132                  Say Y here if you want the debug print routines to direct
 133                  their output to an UART or USART port on asm9260 based
 134                  machines.
 135
 136                    DEBUG_UART_PHYS | DEBUG_UART_VIRT
 137
 138                    0x80000000      | 0xf0000000     | UART0
 139                    0x80004000      | 0xf0004000     | UART1
 140                    0x80008000      | 0xf0008000     | UART2
 141                    0x8000c000      | 0xf000c000     | UART3
 142                    0x80010000      | 0xf0010000     | UART4
 143                    0x80014000      | 0xf0014000     | UART5
 144                    0x80018000      | 0xf0018000     | UART6
 145                    0x8001c000      | 0xf001c000     | UART7
 146                    0x80020000      | 0xf0020000     | UART8
 147                    0x80024000      | 0xf0024000     | UART9
 148
 149        config DEBUG_AT91_RM9200_DBGU
 150                bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
 151                select DEBUG_AT91_UART
 152                depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
 153                help
 154                  Say Y here if you want kernel low-level debugging support
 155                  on the DBGU port of:
 156                    at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
 157                    at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
 158
 159        config DEBUG_AT91_SAM9263_DBGU
 160                bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
 161                select DEBUG_AT91_UART
 162                depends on SOC_AT91SAM9 || SOC_SAMA5D3
 163                help
 164                  Say Y here if you want kernel low-level debugging support
 165                  on the DBGU port of:
 166                    at91sam9263, at91sam9g45, at91sam9m10,
 167                    sama5d3
 168
 169        config DEBUG_AT91_SAMA5D2_UART1
 170                bool "Kernel low-level debugging on SAMA5D2 UART1"
 171                select DEBUG_AT91_UART
 172                depends on SOC_SAMA5D2
 173                help
 174                  Say Y here if you want kernel low-level debugging support
 175                  on the UART1 port of sama5d2.
 176
 177        config DEBUG_AT91_SAMA5D4_USART3
 178                bool "Kernel low-level debugging on SAMA5D4 USART3"
 179                select DEBUG_AT91_UART
 180                depends on SOC_SAMA5D4
 181                help
 182                  Say Y here if you want kernel low-level debugging support
 183                  on the USART3 port of sama5d4.
 184
 185        config DEBUG_AT91_SAMV7_USART1
 186                bool "Kernel low-level debugging via SAMV7 USART1"
 187                select DEBUG_AT91_UART
 188                depends on SOC_SAMV7
 189                help
 190                  Say Y here if you want the debug print routines to direct
 191                  their output to the USART1 port on SAMV7 based
 192                  machines.
 193
 194        config DEBUG_BCM2835
 195                bool "Kernel low-level debugging on BCM2835 PL011 UART"
 196                depends on ARCH_BCM2835 && ARCH_MULTI_V6
 197                select DEBUG_UART_PL01X
 198
 199        config DEBUG_BCM2836
 200                bool "Kernel low-level debugging on BCM2836 PL011 UART"
 201                depends on ARCH_BCM2835 && ARCH_MULTI_V7
 202                select DEBUG_UART_PL01X
 203
 204        config DEBUG_BCM_5301X
 205                bool "Kernel low-level debugging on BCM5301X/NSP UART1"
 206                depends on ARCH_BCM_5301X || ARCH_BCM_NSP
 207                select DEBUG_UART_8250
 208
 209        config DEBUG_BCM_HR2
 210                bool "Kernel low-level debugging on Hurricane 2 UART2"
 211                depends on ARCH_BCM_HR2
 212                select DEBUG_UART_8250
 213
 214        config DEBUG_BCM_IPROC_UART3
 215                bool "Kernel low-level debugging on BCM IPROC UART3"
 216                depends on ARCH_BCM_CYGNUS
 217                select DEBUG_UART_8250
 218                help
 219                  Say Y here if you want the debug print routines to direct
 220                  their output to the third serial port on these devices.
 221
 222        config DEBUG_BCM_KONA_UART
 223                bool "Kernel low-level debugging messages via BCM KONA UART"
 224                depends on ARCH_BCM_MOBILE
 225                select DEBUG_UART_8250
 226                help
 227                  Say Y here if you want kernel low-level debugging support
 228                  on Broadcom SoC platforms.
 229                  This low level debug works for Broadcom
 230                  mobile SoCs in the Kona family of chips (e.g. bcm28155,
 231                  bcm11351, etc...)
 232
 233        config DEBUG_BCM63XX_UART
 234                bool "Kernel low-level debugging on BCM63XX UART"
 235                depends on ARCH_BCM_63XX
 236
 237        config DEBUG_BERLIN_UART
 238                bool "Marvell Berlin SoC Debug UART"
 239                depends on ARCH_BERLIN
 240                select DEBUG_UART_8250
 241                help
 242                  Say Y here if you want kernel low-level debugging support
 243                  on Marvell Berlin SoC based platforms.
 244
 245        config DEBUG_BRCMSTB_UART
 246                bool "Use BRCMSTB UART for low-level debug"
 247                depends on ARCH_BRCMSTB
 248                help
 249                  Say Y here if you want the debug print routines to direct
 250                  their output to the first serial port on these devices. The
 251                  UART physical and virtual address is automatically provided
 252                  based on the chip identification register value.
 253
 254                  If you have a Broadcom STB chip and would like early print
 255                  messages to appear over the UART, select this option.
 256
 257        config DEBUG_CLPS711X_UART1
 258                bool "Kernel low-level debugging messages via UART1"
 259                depends on ARCH_CLPS711X
 260                help
 261                  Say Y here if you want the debug print routines to direct
 262                  their output to the first serial port on these devices.
 263
 264        config DEBUG_CLPS711X_UART2
 265                bool "Kernel low-level debugging messages via UART2"
 266                depends on ARCH_CLPS711X
 267                help
 268                  Say Y here if you want the debug print routines to direct
 269                  their output to the second serial port on these devices.
 270
 271        config DEBUG_CNS3XXX
 272                bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
 273                depends on ARCH_CNS3XXX
 274                select DEBUG_UART_8250
 275                help
 276                  Say Y here if you want the debug print routines to direct
 277                  their output to the CNS3xxx UART0.
 278
 279        config DEBUG_DAVINCI_DA8XX_UART1
 280                bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
 281                depends on ARCH_DAVINCI_DA8XX
 282                select DEBUG_UART_8250
 283                help
 284                  Say Y here if you want the debug print routines to direct
 285                  their output to UART1 serial port on DaVinci DA8XX devices.
 286
 287        config DEBUG_DAVINCI_DA8XX_UART2
 288                bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
 289                depends on ARCH_DAVINCI_DA8XX
 290                select DEBUG_UART_8250
 291                help
 292                  Say Y here if you want the debug print routines to direct
 293                  their output to UART2 serial port on DaVinci DA8XX devices.
 294
 295        config DEBUG_DAVINCI_DMx_UART0
 296                bool "Kernel low-level debugging on DaVinci DMx using UART0"
 297                depends on ARCH_DAVINCI_DMx
 298                select DEBUG_UART_8250
 299                help
 300                  Say Y here if you want the debug print routines to direct
 301                  their output to UART0 serial port on DaVinci DMx devices.
 302
 303        config DEBUG_DC21285_PORT
 304                bool "Kernel low-level debugging messages via footbridge serial port"
 305                depends on FOOTBRIDGE
 306                help
 307                  Say Y here if you want the debug print routines to direct
 308                  their output to the serial port in the DC21285 (Footbridge).
 309
 310        config DEBUG_DIGICOLOR_UA0
 311                bool "Kernel low-level debugging messages via Digicolor UA0"
 312                depends on ARCH_DIGICOLOR
 313                help
 314                  Say Y here if you want the debug print routines to direct
 315                  their output to the UA0 serial port in the CX92755.
 316
 317        config DEBUG_EP93XX
 318                bool "Kernel low-level debugging messages via ep93xx UART"
 319                depends on ARCH_EP93XX
 320                select DEBUG_UART_PL01X
 321                help
 322                  Say Y here if you want kernel low-level debugging support
 323                  on Cirrus Logic EP93xx based platforms.
 324
 325        config DEBUG_FOOTBRIDGE_COM1
 326                bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
 327                depends on FOOTBRIDGE
 328                select DEBUG_UART_8250
 329                help
 330                  Say Y here if you want the debug print routines to direct
 331                  their output to the 8250 at PCI COM1.
 332
 333        config DEBUG_GEMINI
 334                bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
 335                depends on ARCH_GEMINI
 336                select DEBUG_UART_8250
 337                help
 338                  Say Y here if you want kernel low-level debugging support
 339                  on Cortina Gemini based platforms.
 340
 341        config DEBUG_HI3620_UART
 342                bool "Hisilicon HI3620 Debug UART"
 343                depends on ARCH_HI3xxx
 344                select DEBUG_UART_PL01X
 345                help
 346                  Say Y here if you want kernel low-level debugging support
 347                  on HI3620 UART.
 348
 349        config DEBUG_HIGHBANK_UART
 350                bool "Kernel low-level debugging messages via Highbank UART"
 351                depends on ARCH_HIGHBANK
 352                select DEBUG_UART_PL01X
 353                help
 354                  Say Y here if you want the debug print routines to direct
 355                  their output to the UART on Highbank based devices.
 356
 357        config DEBUG_HIP01_UART
 358                bool "Hisilicon Hip01 Debug UART"
 359                depends on ARCH_HIP01
 360                select DEBUG_UART_8250
 361                help
 362                  Say Y here if you want kernel low-level debugging support
 363                  on HIP01 UART.
 364
 365        config DEBUG_HIP04_UART
 366                bool "Hisilicon HiP04 Debug UART"
 367                depends on ARCH_HIP04
 368                select DEBUG_UART_8250
 369                help
 370                  Say Y here if you want kernel low-level debugging support
 371                  on HIP04 UART.
 372
 373        config DEBUG_HIX5HD2_UART
 374                bool "Hisilicon Hix5hd2 Debug UART"
 375                depends on ARCH_HIX5HD2
 376                select DEBUG_UART_PL01X
 377                help
 378                  Say Y here if you want kernel low-level debugging support
 379                  on Hix5hd2 UART.
 380
 381        config DEBUG_IMX1_UART
 382                bool "i.MX1 Debug UART"
 383                depends on SOC_IMX1
 384                help
 385                  Say Y here if you want kernel low-level debugging support
 386                  on i.MX1.
 387
 388        config DEBUG_IMX23_UART
 389                bool "i.MX23 Debug UART"
 390                depends on SOC_IMX23
 391                select DEBUG_UART_PL01X
 392                help
 393                  Say Y here if you want kernel low-level debugging support
 394                  on i.MX23.
 395
 396        config DEBUG_IMX25_UART
 397                bool "i.MX25 Debug UART"
 398                depends on SOC_IMX25
 399                help
 400                  Say Y here if you want kernel low-level debugging support
 401                  on i.MX25.
 402
 403        config DEBUG_IMX21_IMX27_UART
 404                bool "i.MX21 and i.MX27 Debug UART"
 405                depends on SOC_IMX21 || SOC_IMX27
 406                help
 407                  Say Y here if you want kernel low-level debugging support
 408                  on i.MX21 or i.MX27.
 409
 410        config DEBUG_IMX28_UART
 411                bool "i.MX28 Debug UART"
 412                depends on SOC_IMX28
 413                select DEBUG_UART_PL01X
 414                help
 415                  Say Y here if you want kernel low-level debugging support
 416                  on i.MX28.
 417
 418        config DEBUG_IMX31_UART
 419                bool "i.MX31 Debug UART"
 420                depends on SOC_IMX31
 421                help
 422                  Say Y here if you want kernel low-level debugging support
 423                  on i.MX31.
 424
 425        config DEBUG_IMX35_UART
 426                bool "i.MX35 Debug UART"
 427                depends on SOC_IMX35
 428                help
 429                  Say Y here if you want kernel low-level debugging support
 430                  on i.MX35.
 431
 432        config DEBUG_IMX50_UART
 433                bool "i.MX50 Debug UART"
 434                depends on SOC_IMX50
 435                help
 436                  Say Y here if you want kernel low-level debugging support
 437                  on i.MX50.
 438
 439        config DEBUG_IMX51_UART
 440                bool "i.MX51 Debug UART"
 441                depends on SOC_IMX51
 442                help
 443                  Say Y here if you want kernel low-level debugging support
 444                  on i.MX51.
 445
 446        config DEBUG_IMX53_UART
 447                bool "i.MX53 Debug UART"
 448                depends on SOC_IMX53
 449                help
 450                  Say Y here if you want kernel low-level debugging support
 451                  on i.MX53.
 452
 453        config DEBUG_IMX6Q_UART
 454                bool "i.MX6Q/DL Debug UART"
 455                depends on SOC_IMX6Q
 456                help
 457                  Say Y here if you want kernel low-level debugging support
 458                  on i.MX6Q/DL.
 459
 460        config DEBUG_IMX6SL_UART
 461                bool "i.MX6SL Debug UART"
 462                depends on SOC_IMX6SL
 463                help
 464                  Say Y here if you want kernel low-level debugging support
 465                  on i.MX6SL.
 466
 467        config DEBUG_IMX6SX_UART
 468                bool "i.MX6SX Debug UART"
 469                depends on SOC_IMX6SX
 470                help
 471                  Say Y here if you want kernel low-level debugging support
 472                  on i.MX6SX.
 473
 474        config DEBUG_IMX6UL_UART
 475                bool "i.MX6UL Debug UART"
 476                depends on SOC_IMX6UL
 477                help
 478                  Say Y here if you want kernel low-level debugging support
 479                  on i.MX6UL.
 480
 481        config DEBUG_IMX7D_UART
 482                bool "i.MX7D Debug UART"
 483                depends on SOC_IMX7D
 484                help
 485                  Say Y here if you want kernel low-level debugging support
 486                  on i.MX7D.
 487
 488        config DEBUG_INTEGRATOR
 489                bool "Kernel low-level debugging messages via ARM Integrator UART"
 490                depends on ARCH_INTEGRATOR
 491                select DEBUG_UART_PL01X
 492                help
 493                  Say Y here if you want kernel low-level debugging support
 494                  on ARM Integrator platforms.
 495
 496        config DEBUG_KEYSTONE_UART0
 497                bool "Kernel low-level debugging on KEYSTONE2 using UART0"
 498                depends on ARCH_KEYSTONE
 499                select DEBUG_UART_8250
 500                help
 501                  Say Y here if you want the debug print routines to direct
 502                  their output to UART0 serial port on KEYSTONE2 devices.
 503
 504        config DEBUG_KEYSTONE_UART1
 505                bool "Kernel low-level debugging on KEYSTONE2 using UART1"
 506                depends on ARCH_KEYSTONE
 507                select DEBUG_UART_8250
 508                help
 509                  Say Y here if you want the debug print routines to direct
 510                  their output to UART1 serial port on KEYSTONE2 devices.
 511
 512        config DEBUG_LPC18XX_UART0
 513                bool "Kernel low-level debugging via LPC18xx/43xx UART0"
 514                depends on ARCH_LPC18XX
 515                select DEBUG_UART_8250
 516                help
 517                  Say Y here if you want kernel low-level debugging support
 518                  on NXP LPC18xx/43xx UART0.
 519
 520        config DEBUG_LPC32XX
 521                bool "Kernel low-level debugging messages via NXP LPC32xx UART"
 522                depends on ARCH_LPC32XX
 523                select DEBUG_UART_8250
 524                help
 525                  Say Y here if you want kernel low-level debugging support
 526                  on NXP LPC32xx based platforms.
 527
 528        config DEBUG_MESON_UARTAO
 529                bool "Kernel low-level debugging via Meson6 UARTAO"
 530                depends on ARCH_MESON
 531                help
 532                  Say Y here if you want kernel low-lever debugging support
 533                  on Amlogic Meson6 based platforms on the UARTAO.
 534
 535        config DEBUG_MMP_UART2
 536                bool "Kernel low-level debugging message via MMP UART2"
 537                depends on ARCH_MMP
 538                select DEBUG_UART_8250
 539                help
 540                  Say Y here if you want kernel low-level debugging support
 541                  on MMP UART2.
 542
 543        config DEBUG_MMP_UART3
 544                bool "Kernel low-level debugging message via MMP UART3"
 545                depends on ARCH_MMP
 546                select DEBUG_UART_8250
 547                help
 548                  Say Y here if you want kernel low-level debugging support
 549                  on MMP UART3.
 550
 551        config DEBUG_MVEBU_UART0
 552                bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
 553                depends on ARCH_MVEBU
 554                depends on ARCH_MVEBU && CPU_V7
 555                select DEBUG_UART_8250
 556                help
 557                  Say Y here if you want kernel low-level debugging support
 558                  on MVEBU based platforms on UART0.
 559
 560                  This option should be used with the old bootloaders
 561                  that left the internal registers mapped at
 562                  0xd0000000. As of today, this is the case on
 563                  platforms such as the Globalscale Mirabox or the
 564                  Plathome OpenBlocks AX3, when using the original
 565                  bootloader.
 566
 567                  This option will not work on older Marvell platforms
 568                  (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
 569                  the "new bootloader" variant.
 570
 571                  If the wrong DEBUG_MVEBU_UART* option is selected,
 572                  when u-boot hands over to the kernel, the system
 573                  silently crashes, with no serial output at all.
 574
 575        config DEBUG_MVEBU_UART0_ALTERNATE
 576                bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
 577                depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
 578                select DEBUG_UART_8250
 579                help
 580                  Say Y here if you want kernel low-level debugging support
 581                  on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
 582                  Kirkwood, Dove, MV78xx0, Orion5x).
 583
 584
 585                  This option should be used with the new bootloaders
 586                  that remap the internal registers at 0xf1000000.
 587
 588                  If the wrong DEBUG_MVEBU_UART* option is selected,
 589                  when u-boot hands over to the kernel, the system
 590                  silently crashes, with no serial output at all.
 591
 592        config DEBUG_MVEBU_UART1_ALTERNATE
 593                bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
 594                depends on ARCH_MVEBU
 595                select DEBUG_UART_8250
 596                help
 597                  Say Y here if you want kernel low-level debugging support
 598                  on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
 599                  Kirkwood, Dove, MV78xx0, Orion5x).
 600
 601                  This option should be used with the new bootloaders
 602                  that remap the internal registers at 0xf1000000.
 603                  All of the older (pre Armada XP/370) platforms also use
 604                  this address, regardless of the boot loader version.
 605
 606                  If the wrong DEBUG_MVEBU_UART* option is selected,
 607                  when u-boot hands over to the kernel, the system
 608                  silently crashes, with no serial output at all.
 609
 610        config DEBUG_MT6589_UART0
 611                bool "Mediatek mt6589 UART0"
 612                depends on ARCH_MEDIATEK
 613                select DEBUG_UART_8250
 614                help
 615                  Say Y here if you want kernel low-level debugging support
 616                  for Mediatek mt6589 based platforms on UART0.
 617
 618        config DEBUG_MT8127_UART0
 619                bool "Mediatek mt8127/mt6592 UART0"
 620                depends on ARCH_MEDIATEK
 621                select DEBUG_UART_8250
 622                help
 623                  Say Y here if you want kernel low-level debugging support
 624                  for Mediatek mt8127 based platforms on UART0.
 625
 626        config DEBUG_MT8135_UART3
 627                bool "Mediatek mt8135 UART3"
 628                depends on ARCH_MEDIATEK
 629                select DEBUG_UART_8250
 630                help
 631                  Say Y here if you want kernel low-level debugging support
 632                  for Mediatek mt8135 based platforms on UART3.
 633
 634        config DEBUG_NOMADIK_UART
 635                bool "Kernel low-level debugging messages via NOMADIK UART"
 636                depends on ARCH_NOMADIK
 637                select DEBUG_UART_PL01X
 638                help
 639                  Say Y here if you want kernel low-level debugging support
 640                  on NOMADIK based platforms.
 641
 642        config DEBUG_NSPIRE_CLASSIC_UART
 643                bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
 644                depends on ARCH_NSPIRE
 645                select DEBUG_UART_8250
 646                help
 647                  Say Y here if you want kernel low-level debugging support
 648                  on TI-NSPIRE classic models.
 649
 650        config DEBUG_NSPIRE_CX_UART
 651                bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
 652                depends on ARCH_NSPIRE
 653                select DEBUG_UART_PL01X
 654                help
 655                  Say Y here if you want kernel low-level debugging support
 656                  on TI-NSPIRE CX models.
 657
 658        config DEBUG_OMAP1UART1
 659                bool "Kernel low-level debugging via OMAP1 UART1"
 660                depends on ARCH_OMAP1
 661                select DEBUG_UART_8250
 662                help
 663                  Say Y here if you want kernel low-level debugging support
 664                  on OMAP1 based platforms (except OMAP730) on the UART1.
 665
 666        config DEBUG_OMAP1UART2
 667                bool "Kernel low-level debugging via OMAP1 UART2"
 668                depends on ARCH_OMAP1
 669                select DEBUG_UART_8250
 670                help
 671                  Say Y here if you want kernel low-level debugging support
 672                  on OMAP1 based platforms (except OMAP730) on the UART2.
 673
 674        config DEBUG_OMAP1UART3
 675                bool "Kernel low-level debugging via OMAP1 UART3"
 676                depends on ARCH_OMAP1
 677                select DEBUG_UART_8250
 678                help
 679                  Say Y here if you want kernel low-level debugging support
 680                  on OMAP1 based platforms (except OMAP730) on the UART3.
 681
 682        config DEBUG_OMAP2UART1
 683                bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
 684                depends on ARCH_OMAP2PLUS
 685                select DEBUG_UART_8250
 686                help
 687                  This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
 688                  omap3 torpedo and 3530 lv som.
 689
 690        config DEBUG_OMAP2UART2
 691                bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
 692                depends on ARCH_OMAP2PLUS
 693                select DEBUG_UART_8250
 694
 695        config DEBUG_OMAP2UART3
 696                bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
 697                depends on ARCH_OMAP2PLUS
 698                select DEBUG_UART_8250
 699
 700        config DEBUG_OMAP3UART3
 701                bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
 702                depends on ARCH_OMAP2PLUS
 703                select DEBUG_UART_8250
 704                help
 705                  This covers at least cm_t3x, beagle, crane, devkit8000,
 706                  igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
 707                  and 3517evm.
 708
 709        config DEBUG_OMAP4UART3
 710                bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
 711                depends on ARCH_OMAP2PLUS
 712                select DEBUG_UART_8250
 713
 714        config DEBUG_OMAP3UART4
 715                bool "Kernel low-level debugging messages via OMAP36XX UART4"
 716                depends on ARCH_OMAP2PLUS
 717                select DEBUG_UART_8250
 718
 719        config DEBUG_OMAP4UART4
 720                bool "Kernel low-level debugging messages via OMAP4/5 UART4"
 721                depends on ARCH_OMAP2PLUS
 722                select DEBUG_UART_8250
 723
 724        config DEBUG_OMAP7XXUART1
 725                bool "Kernel low-level debugging via OMAP730 UART1"
 726                depends on ARCH_OMAP730
 727                select DEBUG_UART_8250
 728                help
 729                  Say Y here if you want kernel low-level debugging support
 730                  on OMAP730 based platforms on the UART1.
 731
 732        config DEBUG_OMAP7XXUART2
 733                bool "Kernel low-level debugging via OMAP730 UART2"
 734                depends on ARCH_OMAP730
 735                select DEBUG_UART_8250
 736                help
 737                  Say Y here if you want kernel low-level debugging support
 738                  on OMAP730 based platforms on the UART2.
 739
 740        config DEBUG_OMAP7XXUART3
 741                bool "Kernel low-level debugging via OMAP730 UART3"
 742                depends on ARCH_OMAP730
 743                select DEBUG_UART_8250
 744                help
 745                  Say Y here if you want kernel low-level debugging support
 746                  on OMAP730 based platforms on the UART3.
 747
 748        config DEBUG_TI81XXUART1
 749                bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
 750                depends on ARCH_OMAP2PLUS
 751                select DEBUG_UART_8250
 752
 753        config DEBUG_TI81XXUART2
 754                bool "Kernel low-level debugging messages via TI81XX UART2"
 755                depends on ARCH_OMAP2PLUS
 756                select DEBUG_UART_8250
 757
 758        config DEBUG_TI81XXUART3
 759                bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
 760                depends on ARCH_OMAP2PLUS
 761                select DEBUG_UART_8250
 762
 763        config DEBUG_AM33XXUART1
 764                bool "Kernel low-level debugging messages via AM33XX UART1"
 765                depends on ARCH_OMAP2PLUS
 766                select DEBUG_UART_8250
 767
 768        config DEBUG_ZOOM_UART
 769                bool "Kernel low-level debugging messages via Zoom2/3 UART"
 770                depends on ARCH_OMAP2PLUS
 771                select DEBUG_OMAP2PLUS_UART
 772
 773        config DEBUG_PXA_UART1
 774                depends on ARCH_PXA
 775                bool "Use PXA UART1 for low-level debug"
 776                select DEBUG_UART_8250
 777                help
 778                  Say Y here if you want kernel low-level debugging support
 779                  on PXA UART1.
 780
 781        config DEBUG_QCOM_UARTDM
 782                bool "Kernel low-level debugging messages via QCOM UARTDM"
 783                depends on ARCH_QCOM
 784                help
 785                  Say Y here if you want the debug print routines to direct
 786                  their output to the serial port on Qualcomm devices.
 787
 788                  ARCH      DEBUG_UART_PHYS   DEBUG_UART_VIRT
 789                  APQ8064   0x16640000        0xf0040000
 790                  APQ8084   0xf995e000        0xfa75e000
 791                  IPQ4019   0x078af000        0xf78af000
 792                  MSM8X60   0x19c40000        0xf0040000
 793                  MSM8960   0x16440000        0xf0040000
 794                  MSM8974   0xf991e000        0xfa71e000
 795
 796                  Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
 797                  options based on your needs.
 798
 799        config DEBUG_REALVIEW_STD_PORT
 800                bool "RealView Default UART"
 801                depends on ARCH_REALVIEW
 802                select DEBUG_UART_PL01X
 803                help
 804                  Say Y here if you want the debug print routines to direct
 805                  their output to the serial port on RealView EB, PB11MP, PBA8
 806                  and PBX platforms.
 807
 808        config DEBUG_REALVIEW_PB1176_PORT
 809                bool "RealView PB1176 UART"
 810                depends on MACH_REALVIEW_PB1176
 811                select DEBUG_UART_PL01X
 812                help
 813                  Say Y here if you want the debug print routines to direct
 814                  their output to the standard serial port on the RealView
 815                  PB1176 platform.
 816
 817        config DEBUG_RV1108_UART0
 818                bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
 819                depends on ARCH_ROCKCHIP
 820                select DEBUG_UART_8250
 821                help
 822                  Say Y here if you want kernel low-level debugging support
 823                  on Rockchip RV1108 based platforms.
 824
 825        config DEBUG_RV1108_UART1
 826                bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
 827                depends on ARCH_ROCKCHIP
 828                select DEBUG_UART_8250
 829                help
 830                  Say Y here if you want kernel low-level debugging support
 831                  on Rockchip RV1108 based platforms.
 832
 833        config DEBUG_RV1108_UART2
 834                bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
 835                depends on ARCH_ROCKCHIP
 836                select DEBUG_UART_8250
 837                help
 838                  Say Y here if you want kernel low-level debugging support
 839                  on Rockchip RV1108 based platforms.
 840
 841        config DEBUG_RK29_UART0
 842                bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
 843                depends on ARCH_ROCKCHIP
 844                select DEBUG_UART_8250
 845                help
 846                  Say Y here if you want kernel low-level debugging support
 847                  on Rockchip based platforms.
 848
 849        config DEBUG_RK29_UART1
 850                bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
 851                depends on ARCH_ROCKCHIP
 852                select DEBUG_UART_8250
 853                help
 854                  Say Y here if you want kernel low-level debugging support
 855                  on Rockchip based platforms.
 856
 857        config DEBUG_RK29_UART2
 858                bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
 859                depends on ARCH_ROCKCHIP
 860                select DEBUG_UART_8250
 861                help
 862                  Say Y here if you want kernel low-level debugging support
 863                  on Rockchip based platforms.
 864
 865        config DEBUG_RK3X_UART0
 866                bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
 867                depends on ARCH_ROCKCHIP
 868                select DEBUG_UART_8250
 869                help
 870                  Say Y here if you want kernel low-level debugging support
 871                  on Rockchip based platforms.
 872
 873        config DEBUG_RK3X_UART1
 874                bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
 875                depends on ARCH_ROCKCHIP
 876                select DEBUG_UART_8250
 877                help
 878                  Say Y here if you want kernel low-level debugging support
 879                  on Rockchip based platforms.
 880
 881        config DEBUG_RK3X_UART2
 882                bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
 883                depends on ARCH_ROCKCHIP
 884                select DEBUG_UART_8250
 885                help
 886                  Say Y here if you want kernel low-level debugging support
 887                  on Rockchip based platforms.
 888
 889        config DEBUG_RK3X_UART3
 890                bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
 891                depends on ARCH_ROCKCHIP
 892                select DEBUG_UART_8250
 893                help
 894                  Say Y here if you want kernel low-level debugging support
 895                  on Rockchip based platforms.
 896
 897        config DEBUG_RK32_UART2
 898                bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
 899                depends on ARCH_ROCKCHIP
 900                select DEBUG_UART_8250
 901                help
 902                  Say Y here if you want kernel low-level debugging support
 903                  on Rockchip RK32xx based platforms.
 904
 905        config DEBUG_R7S72100_SCIF2
 906                bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
 907                depends on ARCH_R7S72100
 908                help
 909                  Say Y here if you want kernel low-level debugging support
 910                  via SCIF2 on Renesas RZ/A1H (R7S72100).
 911
 912        config DEBUG_R7S9210_SCIF2
 913                bool "Kernel low-level debugging messages via SCIF2 on R7S9210"
 914                depends on ARCH_R7S9210
 915                help
 916                  Say Y here if you want kernel low-level debugging support
 917                  via SCIF2 on Renesas RZ/A2M (R7S9210).
 918
 919        config DEBUG_R7S9210_SCIF4
 920                bool "Kernel low-level debugging messages via SCIF4 on R7S9210"
 921                depends on ARCH_R7S9210
 922                help
 923                  Say Y here if you want kernel low-level debugging support
 924                  via SCIF4 on Renesas RZ/A2M (R7S9210).
 925
 926        config DEBUG_RCAR_GEN1_SCIF0
 927                bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
 928                depends on ARCH_R8A7778
 929                help
 930                  Say Y here if you want kernel low-level debugging support
 931                  via SCIF0 on Renesas R-Car M1A (R8A7778).
 932
 933        config DEBUG_RCAR_GEN1_SCIF2
 934                bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
 935                depends on ARCH_R8A7779
 936                help
 937                  Say Y here if you want kernel low-level debugging support
 938                  via SCIF2 on Renesas R-Car H1 (R8A7779).
 939
 940        config DEBUG_RCAR_GEN2_SCIF0
 941                bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
 942                depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \
 943                        ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
 944                help
 945                  Say Y here if you want kernel low-level debugging support
 946                  via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744),
 947                  R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or
 948                  M2-N (R8A7793).
 949
 950        config DEBUG_RCAR_GEN2_SCIF1
 951                bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
 952                depends on ARCH_R8A77470
 953                help
 954                  Say Y here if you want kernel low-level debugging support
 955                  via SCIF1 on Renesas RZ/G1C (R8A77470).
 956
 957        config DEBUG_RCAR_GEN2_SCIF2
 958                bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
 959                depends on ARCH_R8A7794
 960                help
 961                  Say Y here if you want kernel low-level debugging support
 962                  via SCIF2 on Renesas R-Car E2 (R8A7794).
 963
 964        config DEBUG_RCAR_GEN2_SCIF4
 965                bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
 966                depends on ARCH_R8A7745
 967                help
 968                  Say Y here if you want kernel low-level debugging support
 969                  via SCIF4 on Renesas RZ/G1E (R8A7745).
 970
 971        config DEBUG_RCAR_GEN2_SCIFA2
 972                bool "Kernel low-level debugging messages via SCIFA2 on R8A7742"
 973                depends on ARCH_R8A7742
 974                help
 975                  Say Y here if you want kernel low-level debugging support
 976                  via SCIFA2 on Renesas RZ/G1H (R8A7742).
 977
 978        config DEBUG_RMOBILE_SCIFA0
 979                bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
 980                depends on ARCH_R8A73A4
 981                help
 982                  Say Y here if you want kernel low-level debugging support
 983                  via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
 984
 985        config DEBUG_RMOBILE_SCIFA1
 986                bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
 987                depends on ARCH_R8A7740
 988                help
 989                  Say Y here if you want kernel low-level debugging support
 990                  via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
 991
 992        config DEBUG_RMOBILE_SCIFA4
 993                bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
 994                depends on ARCH_SH73A0
 995                help
 996                  Say Y here if you want kernel low-level debugging support
 997                  via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
 998
 999        config DEBUG_S3C_UART0
1000                depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1001                select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1002                select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1003                select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1004                select DEBUG_S5PV210_UART if ARCH_S5PV210
1005                bool "Use Samsung S3C UART 0 for low-level debug"
1006                help
1007                  Say Y here if you want the debug print routines to direct
1008                  their output to UART 0. The port must have been initialised
1009                  by the boot-loader before use.
1010
1011        config DEBUG_S3C_UART1
1012                depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1013                select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1014                select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1015                select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1016                select DEBUG_S5PV210_UART if ARCH_S5PV210
1017                bool "Use Samsung S3C UART 1 for low-level debug"
1018                help
1019                  Say Y here if you want the debug print routines to direct
1020                  their output to UART 1. The port must have been initialised
1021                  by the boot-loader before use.
1022
1023        config DEBUG_S3C_UART2
1024                depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1025                select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1026                select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1027                select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1028                select DEBUG_S5PV210_UART if ARCH_S5PV210
1029                bool "Use Samsung S3C UART 2 for low-level debug"
1030                help
1031                  Say Y here if you want the debug print routines to direct
1032                  their output to UART 2. The port must have been initialised
1033                  by the boot-loader before use.
1034
1035        config DEBUG_S3C_UART3
1036                depends on ARCH_EXYNOS || ARCH_S5PV210
1037                select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1038                select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1039                select DEBUG_S5PV210_UART if ARCH_S5PV210
1040                bool "Use Samsung S3C UART 3 for low-level debug"
1041                help
1042                  Say Y here if you want the debug print routines to direct
1043                  their output to UART 3. The port must have been initialised
1044                  by the boot-loader before use.
1045
1046        config DEBUG_S3C2410_UART0
1047                depends on ARCH_S3C24XX
1048                select DEBUG_S3C2410_UART
1049                bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
1050                help
1051                  Say Y here if you want the debug print routines to direct
1052                  their output to UART 0. The port must have been initialised
1053                  by the boot-loader before use.
1054
1055        config DEBUG_S3C2410_UART1
1056                depends on ARCH_S3C24XX
1057                select DEBUG_S3C2410_UART
1058                bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
1059                help
1060                  Say Y here if you want the debug print routines to direct
1061                  their output to UART 1. The port must have been initialised
1062                  by the boot-loader before use.
1063
1064        config DEBUG_S3C2410_UART2
1065                depends on ARCH_S3C24XX
1066                select DEBUG_S3C2410_UART
1067                bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
1068                help
1069                  Say Y here if you want the debug print routines to direct
1070                  their output to UART 2. The port must have been initialised
1071                  by the boot-loader before use.
1072
1073        config DEBUG_SA1100
1074                depends on ARCH_SA1100
1075                bool "Use SA1100 UARTs for low-level debug"
1076                help
1077                  Say Y here if you want kernel low-level debugging support
1078                  on SA-11x0 UART ports. The kernel will check for the first
1079                  enabled UART in a sequence 3-1-2.
1080
1081        config DEBUG_SD5203_UART
1082                bool "Hisilicon SD5203 Debug UART"
1083                depends on ARCH_SD5203
1084                select DEBUG_UART_8250
1085                help
1086                  Say Y here if you want kernel low-level debugging support
1087                  on SD5203 UART.
1088
1089        config DEBUG_SOCFPGA_UART0
1090                depends on ARCH_INTEL_SOCFPGA
1091                bool "Use SOCFPGA UART0 for low-level debug"
1092                select DEBUG_UART_8250
1093                help
1094                  Say Y here if you want kernel low-level debugging support
1095                  on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1096
1097        config DEBUG_SOCFPGA_ARRIA10_UART1
1098                depends on ARCH_INTEL_SOCFPGA
1099                bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1100                select DEBUG_UART_8250
1101                help
1102                  Say Y here if you want kernel low-level debugging support
1103                  on SOCFPGA(Arria 10) based platforms.
1104
1105        config DEBUG_SOCFPGA_CYCLONE5_UART1
1106                depends on ARCH_INTEL_SOCFPGA
1107                bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1108                select DEBUG_UART_8250
1109                help
1110                  Say Y here if you want kernel low-level debugging support
1111                  on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1112
1113        config DEBUG_SUN9I_UART0
1114                bool "Kernel low-level debugging messages via sun9i UART0"
1115                depends on MACH_SUN9I
1116                select DEBUG_UART_8250
1117                help
1118                  Say Y here if you want kernel low-level debugging support
1119                  on Allwinner A80 based platforms on the UART0.
1120
1121        config DEBUG_SUNXI_UART0
1122                bool "Kernel low-level debugging messages via sunXi UART0"
1123                depends on ARCH_SUNXI
1124                select DEBUG_UART_8250
1125                help
1126                  Say Y here if you want kernel low-level debugging support
1127                  on Allwinner A1X based platforms on the UART0.
1128
1129        config DEBUG_SUNXI_UART1
1130                bool "Kernel low-level debugging messages via sunXi UART1"
1131                depends on ARCH_SUNXI
1132                select DEBUG_UART_8250
1133                help
1134                  Say Y here if you want kernel low-level debugging support
1135                  on Allwinner A1X based platforms on the UART1.
1136
1137        config DEBUG_SUNXI_R_UART
1138                bool "Kernel low-level debugging messages via sunXi R_UART"
1139                depends on MACH_SUN6I || MACH_SUN8I
1140                select DEBUG_UART_8250
1141                help
1142                  Say Y here if you want kernel low-level debugging support
1143                  on Allwinner A31/A23 based platforms on the R_UART.
1144
1145        config DEBUG_SPEAR3XX
1146                bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1147                depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1148                select DEBUG_UART_PL01X
1149                help
1150                  Say Y here if you want kernel low-level debugging support
1151                  on ST SPEAr based platforms.
1152
1153        config DEBUG_SPEAR13XX
1154                bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1155                depends on ARCH_SPEAR13XX
1156                select DEBUG_UART_PL01X
1157                help
1158                  Say Y here if you want kernel low-level debugging support
1159                  on ST SPEAr13xx based platforms.
1160
1161        config DEBUG_STIH41X_ASC2
1162                bool "Use StiH415/416 ASC2 UART for low-level debug"
1163                depends on ARCH_STI
1164                help
1165                  Say Y here if you want kernel low-level debugging support
1166                  on STiH415/416 based platforms like b2000, which has
1167                  default UART wired up to ASC2.
1168
1169                  If unsure, say N.
1170
1171        config DEBUG_STIH41X_SBC_ASC1
1172                bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1173                depends on ARCH_STI
1174                help
1175                  Say Y here if you want kernel low-level debugging support
1176                  on STiH415/416 based platforms like b2020. which has
1177                  default UART wired up to SBC ASC1.
1178
1179                  If unsure, say N.
1180
1181        config DEBUG_STIH418_SBC_ASC0
1182                bool "Use StiH418 SBC ASC0 UART for low-level debug"
1183                depends on ARCH_STI
1184                help
1185                  Say Y here if you want kernel low-level debugging support
1186                  on STiH418 based platforms which has default UART wired
1187                  up to SBC ASC0.
1188
1189                  If unsure, say N.
1190
1191        config STM32F4_DEBUG_UART
1192                bool "Use STM32F4 UART for low-level debug"
1193                depends on MACH_STM32F429 || MACH_STM32F469
1194                select DEBUG_STM32_UART
1195                help
1196                  Say Y here if you want kernel low-level debugging support
1197                  on STM32F4 based platforms, which default UART is wired on
1198                  USART1, but another UART instance can be selected by modifying
1199                  CONFIG_DEBUG_UART_PHYS.
1200
1201                  If unsure, say N.
1202
1203        config STM32F7_DEBUG_UART
1204                bool "Use STM32F7 UART for low-level debug"
1205                depends on MACH_STM32F746 || MACH_STM32F769
1206                select DEBUG_STM32_UART
1207                help
1208                  Say Y here if you want kernel low-level debugging support
1209                  on STM32F7 based platforms, which default UART is wired on
1210                  USART1, but another UART instance can be selected by modifying
1211                  CONFIG_DEBUG_UART_PHYS.
1212
1213                  If unsure, say N.
1214
1215        config STM32H7_DEBUG_UART
1216                bool "Use STM32H7 UART for low-level debug"
1217                depends on MACH_STM32H743
1218                select DEBUG_STM32_UART
1219                help
1220                  Say Y here if you want kernel low-level debugging support
1221                  on STM32H7 based platforms, which default UART is wired on
1222                  USART1, but another UART instance can be selected by modifying
1223                  CONFIG_DEBUG_UART_PHYS.
1224
1225                  If unsure, say N.
1226
1227        config STM32MP1_DEBUG_UART
1228                bool "Use STM32MP1 UART for low-level debug"
1229                depends on MACH_STM32MP157
1230                select DEBUG_STM32_UART
1231                help
1232                  Say Y here if you want kernel low-level debugging support
1233                  on STM32MP1 based platforms, wich default UART is wired on
1234                  UART4, but another UART instance can be selected by modifying
1235                  CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
1236
1237                  If unsure, say N.
1238
1239        config TEGRA_DEBUG_UART_AUTO_ODMDATA
1240                bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1241                depends on ARCH_TEGRA
1242                select DEBUG_TEGRA_UART
1243                help
1244                  Automatically determines which UART to use for low-level
1245                  debug based on the ODMDATA value. This value is part of
1246                  the BCT, and is written to the boot memory device using
1247                  nvflash, or other flashing tool.  When bits 19:18 are 3,
1248                  then bits 17:15 indicate which UART to use; 0/1/2/3/4
1249                  are UART A/B/C/D/E.
1250
1251        config TEGRA_DEBUG_UARTA
1252                bool "Kernel low-level debugging messages via Tegra UART A"
1253                depends on ARCH_TEGRA
1254                select DEBUG_TEGRA_UART
1255                help
1256                  Say Y here if you want kernel low-level debugging support
1257                  on Tegra based platforms.
1258
1259        config TEGRA_DEBUG_UARTB
1260                bool "Kernel low-level debugging messages via Tegra UART B"
1261                depends on ARCH_TEGRA
1262                select DEBUG_TEGRA_UART
1263                help
1264                  Say Y here if you want kernel low-level debugging support
1265                  on Tegra based platforms.
1266
1267        config TEGRA_DEBUG_UARTC
1268                bool "Kernel low-level debugging messages via Tegra UART C"
1269                depends on ARCH_TEGRA
1270                select DEBUG_TEGRA_UART
1271                help
1272                  Say Y here if you want kernel low-level debugging support
1273                  on Tegra based platforms.
1274
1275        config TEGRA_DEBUG_UARTD
1276                bool "Kernel low-level debugging messages via Tegra UART D"
1277                depends on ARCH_TEGRA
1278                select DEBUG_TEGRA_UART
1279                help
1280                  Say Y here if you want kernel low-level debugging support
1281                  on Tegra based platforms.
1282
1283        config TEGRA_DEBUG_UARTE
1284                bool "Kernel low-level debugging messages via Tegra UART E"
1285                depends on ARCH_TEGRA
1286                select DEBUG_TEGRA_UART
1287                help
1288                  Say Y here if you want kernel low-level debugging support
1289                  on Tegra based platforms.
1290
1291        config DEBUG_UX500_UART
1292                depends on ARCH_U8500
1293                bool "Use Ux500 UART for low-level debug"
1294                help
1295                  Say Y here if you want kernel low-level debugging support
1296                  on Ux500 based platforms.
1297
1298        config DEBUG_VERSATILE
1299                bool "Kernel low-level debugging messages via ARM Versatile UART"
1300                depends on ARCH_VERSATILE
1301                select DEBUG_UART_PL01X
1302                help
1303                  Say Y here if you want kernel low-level debugging support
1304                  on ARM Versatile platforms.
1305
1306        config DEBUG_VEXPRESS_UART0_DETECT
1307                bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1308                depends on ARCH_VEXPRESS && CPU_CP15_MMU
1309                help
1310                  This option enables a simple heuristic which tries to determine
1311                  the motherboard's memory map variant (original or RS1) and then
1312                  choose the relevant UART0 base address.
1313
1314                  Note that this will only work with standard A-class core tiles,
1315                  and may fail with non-standard SMM or custom software models.
1316
1317        config DEBUG_VEXPRESS_UART0_CA9
1318                bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1319                depends on ARCH_VEXPRESS
1320                select DEBUG_UART_PL01X
1321                help
1322                  This option selects UART0 at 0x10009000. Except for custom models,
1323                  this applies only to the V2P-CA9 tile.
1324
1325        config DEBUG_VEXPRESS_UART0_RS1
1326                bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1327                depends on ARCH_VEXPRESS
1328                select DEBUG_UART_PL01X
1329                help
1330                  This option selects UART0 at 0x1c090000. This applies to most
1331                  of the tiles using the RS1 memory map, including all new A-class
1332                  core tiles, FPGA-based SMMs and software models.
1333
1334        config DEBUG_VEXPRESS_UART0_CRX
1335                bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1336                depends on ARCH_VEXPRESS && !MMU
1337                select DEBUG_UART_PL01X
1338                help
1339                  This option selects UART0 at 0xb0090000. This is appropriate for
1340                  Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1341
1342        config DEBUG_VF_UART
1343                bool "Vybrid UART"
1344                depends on SOC_VF610
1345                help
1346                  Say Y here if you want kernel low-level debugging support
1347                  on Vybrid based platforms.
1348
1349        config DEBUG_VT8500_UART0
1350                bool "Use UART0 on VIA/Wondermedia SoCs"
1351                depends on ARCH_VT8500
1352                help
1353                  This option selects UART0 on VIA/Wondermedia System-on-a-chip
1354                  devices, including VT8500, WM8505, WM8650 and WM8850.
1355
1356        config DEBUG_ZYNQ_UART0
1357                bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1358                depends on ARCH_ZYNQ
1359                help
1360                  Say Y here if you want the debug print routines to direct
1361                  their output to UART0 on the Zynq platform.
1362
1363        config DEBUG_ZYNQ_UART1
1364                bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1365                depends on ARCH_ZYNQ
1366                help
1367                  Say Y here if you want the debug print routines to direct
1368                  their output to UART1 on the Zynq platform.
1369
1370                  If you have a ZC702 board and want early boot messages to
1371                  appear on the USB serial adaptor, select this option.
1372
1373        config DEBUG_ICEDCC
1374                bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1375                help
1376                  Say Y here if you want the debug print routines to direct
1377                  their output to the EmbeddedICE macrocell's DCC channel using
1378                  co-processor 14. This is known to work on the ARM9 style ICE
1379                  channel and on the XScale with the PEEDI.
1380
1381                  Note that the system will appear to hang during boot if there
1382                  is nothing connected to read from the DCC.
1383
1384        config DEBUG_SEMIHOSTING
1385                bool "Kernel low-level debug output via semihosting I/O"
1386                help
1387                  Semihosting enables code running on an ARM target to use
1388                  the I/O facilities on a host debugger/emulator through a
1389                  simple SVC call. The host debugger or emulator must have
1390                  semihosting enabled for the special svc call to be trapped
1391                  otherwise the kernel will crash.
1392
1393                  This is known to work with OpenOCD, as well as
1394                  ARM's Fast Models, or any other controlling environment
1395                  that implements semihosting.
1396
1397                  For more details about semihosting, please see
1398                  chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1399
1400        config DEBUG_LL_UART_8250
1401                bool "Kernel low-level debugging via 8250 UART"
1402                help
1403                  Say Y here if you wish the debug print routes to direct
1404                  their output to an 8250 UART.  You can use this option
1405                  to provide the parameters for the 8250 UART rather than
1406                  selecting one of the platform specific options above if
1407                  you know the parameters for the port.
1408
1409                  This option is preferred over the platform specific
1410                  options; the platform specific options are deprecated
1411                  and will be soon removed.
1412
1413        config DEBUG_LL_UART_PL01X
1414                bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1415                help
1416                  Say Y here if you wish the debug print routes to direct
1417                  their output to a PL01x Primecell UART.  You can use
1418                  this option to provide the parameters for the UART
1419                  rather than selecting one of the platform specific
1420                  options above if you know the parameters for the port.
1421
1422                  This option is preferred over the platform specific
1423                  options; the platform specific options are deprecated
1424                  and will be soon removed.
1425
1426endchoice
1427
1428config DEBUG_AT91_UART
1429        bool
1430        depends on ARCH_AT91
1431
1432config DEBUG_EXYNOS_UART
1433        bool
1434
1435config DEBUG_S3C2410_UART
1436        bool
1437        select DEBUG_S3C24XX_UART
1438
1439config DEBUG_S3C24XX_UART
1440        bool
1441
1442config DEBUG_S3C64XX_UART
1443        bool
1444
1445config DEBUG_S5PV210_UART
1446        bool
1447
1448config DEBUG_S3C_UART
1449        depends on DEBUG_S3C2410_UART || DEBUG_S3C24XX_UART || \
1450                   DEBUG_S3C64XX_UART ||  DEBUG_S5PV210_UART || \
1451                   DEBUG_EXYNOS_UART
1452        int
1453        default "0" if DEBUG_S3C_UART0
1454        default "1" if DEBUG_S3C_UART1
1455        default "2" if DEBUG_S3C_UART2
1456        default "3" if DEBUG_S3C_UART3
1457
1458config DEBUG_OMAP2PLUS_UART
1459        bool
1460        depends on ARCH_OMAP2PLUS
1461
1462config DEBUG_IMX_UART_PORT
1463        int "i.MX Debug UART Port Selection"
1464        depends on DEBUG_IMX1_UART || \
1465                   DEBUG_IMX25_UART || \
1466                   DEBUG_IMX21_IMX27_UART || \
1467                   DEBUG_IMX31_UART || \
1468                   DEBUG_IMX35_UART || \
1469                   DEBUG_IMX50_UART || \
1470                   DEBUG_IMX51_UART || \
1471                   DEBUG_IMX53_UART || \
1472                   DEBUG_IMX6Q_UART || \
1473                   DEBUG_IMX6SL_UART || \
1474                   DEBUG_IMX6SX_UART || \
1475                   DEBUG_IMX6UL_UART || \
1476                   DEBUG_IMX7D_UART
1477        default 1
1478        help
1479          Choose UART port on which kernel low-level debug messages
1480          should be output.
1481
1482config DEBUG_VF_UART_PORT
1483        int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1484        default 1
1485        range 0 3
1486        depends on SOC_VF610
1487        help
1488          Choose UART port on which kernel low-level debug messages
1489          should be output.
1490
1491config DEBUG_TEGRA_UART
1492        bool
1493        depends on ARCH_TEGRA
1494
1495config DEBUG_STM32_UART
1496        bool
1497        depends on ARCH_STM32
1498
1499config DEBUG_UART_FLOW_CONTROL
1500        bool "Enable flow control (CTS) for the debug UART"
1501        depends on DEBUG_LL
1502        default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1503        help
1504          Some UART ports are connected to terminals that will use modem
1505          control signals to indicate whether they are ready to receive text.
1506          In practice this means that the terminal is asserting the special
1507          control signal CTS (Clear To Send). If your debug UART supports
1508          this and your debug terminal will require it, enable this option.
1509
1510config DEBUG_LL_INCLUDE
1511        string
1512        default "debug/sa1100.S" if DEBUG_SA1100
1513        default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1514        default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1515        default "debug/at91.S" if DEBUG_AT91_UART
1516        default "debug/asm9260.S" if DEBUG_ASM9260_UART
1517        default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1518        default "debug/dc21285.S" if DEBUG_DC21285_PORT
1519        default "debug/meson.S" if DEBUG_MESON_UARTAO
1520        default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1521        default "debug/exynos.S" if DEBUG_EXYNOS_UART
1522        default "debug/icedcc.S" if DEBUG_ICEDCC
1523        default "debug/imx.S" if DEBUG_IMX1_UART || \
1524                                 DEBUG_IMX25_UART || \
1525                                 DEBUG_IMX21_IMX27_UART || \
1526                                 DEBUG_IMX31_UART || \
1527                                 DEBUG_IMX35_UART || \
1528                                 DEBUG_IMX50_UART || \
1529                                 DEBUG_IMX51_UART || \
1530                                 DEBUG_IMX53_UART ||\
1531                                 DEBUG_IMX6Q_UART || \
1532                                 DEBUG_IMX6SL_UART || \
1533                                 DEBUG_IMX6SX_UART || \
1534                                 DEBUG_IMX6UL_UART || \
1535                                 DEBUG_IMX7D_UART
1536        default "debug/msm.S" if DEBUG_QCOM_UARTDM
1537        default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1538        default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1539        default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
1540        default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
1541        default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1542        default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1543        default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1544        default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1545        default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1546        default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1547        default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2
1548        default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1549        default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1550        default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1551        default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1552        default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1553        default "debug/sti.S" if DEBUG_STIH41X_ASC2
1554        default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1
1555        default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0
1556        default "debug/stm32.S" if DEBUG_STM32_UART
1557        default "debug/tegra.S" if DEBUG_TEGRA_UART
1558        default "debug/ux500.S" if DEBUG_UX500_UART
1559        default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1560        default "debug/vf.S" if DEBUG_VF_UART
1561        default "debug/vt8500.S" if DEBUG_VT8500_UART0
1562        default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1563        default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1564        default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1565        default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1566        default "mach/debug-macro.S"
1567
1568# Compatibility options for PL01x
1569config DEBUG_UART_PL01X
1570        bool
1571
1572# Compatibility options for 8250
1573config DEBUG_UART_8250
1574        def_bool ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC
1575
1576config DEBUG_UART_PHYS
1577        hex "Physical base address of debug UART"
1578        default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1579        default 0x01c28000 if DEBUG_SUNXI_UART0
1580        default 0x01c28400 if DEBUG_SUNXI_UART1
1581        default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1582        default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1583        default 0x01f02800 if DEBUG_SUNXI_R_UART
1584        default 0x02530c00 if DEBUG_KEYSTONE_UART0
1585        default 0x02531000 if DEBUG_KEYSTONE_UART1
1586        default 0x03010fe0 if ARCH_RPC
1587        default 0x07000000 if DEBUG_SUN9I_UART0
1588        default 0x09530000 if DEBUG_STIH418_SBC_ASC0
1589        default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1590                                DEBUG_VEXPRESS_UART0_CA9
1591        default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1592        default 0x10124000 if DEBUG_RK3X_UART0
1593        default 0x10126000 if DEBUG_RK3X_UART1
1594        default 0x101f1000 if DEBUG_VERSATILE
1595        default 0x101fb000 if DEBUG_NOMADIK_UART
1596        default 0x10210000 if DEBUG_RV1108_UART2
1597        default 0x10220000 if DEBUG_RV1108_UART1
1598        default 0x10230000 if DEBUG_RV1108_UART0
1599        default 0x11002000 if DEBUG_MT8127_UART0
1600        default 0x11006000 if DEBUG_MT6589_UART0
1601        default 0x11009000 if DEBUG_MT8135_UART3
1602        default 0x16000000 if DEBUG_INTEGRATOR
1603        default 0x1600d000 if DEBUG_SD5203_UART
1604        default 0x18000300 if DEBUG_BCM_5301X
1605        default 0x18000400 if DEBUG_BCM_HR2
1606        default 0x18023000 if DEBUG_BCM_IPROC_UART3
1607        default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1608        default 0x20001000 if DEBUG_HIP01_UART
1609        default 0x20060000 if DEBUG_RK29_UART0
1610        default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1611        default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1612        default 0x20201000 if DEBUG_BCM2835
1613        default 0x3e000000 if DEBUG_BCM_KONA_UART
1614        default 0x3f201000 if DEBUG_BCM2836
1615        default 0x40010000 if STM32MP1_DEBUG_UART
1616        default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
1617                                STM32H7_DEBUG_UART
1618        default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1619        default 0x40081000 if DEBUG_LPC18XX_UART0
1620        default 0x40090000 if DEBUG_LPC32XX
1621        default 0x40100000 if DEBUG_PXA_UART1
1622        default 0x42000000 if DEBUG_GEMINI
1623        default 0x44e09000 if DEBUG_AM33XXUART1
1624        default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1625        default 0x48022000 if DEBUG_TI81XXUART2
1626        default 0x48024000 if DEBUG_TI81XXUART3
1627        default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1628                                DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1629        default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1630                                DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1631        default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1632        default 0x49020000 if DEBUG_OMAP3UART3
1633        default 0x49042000 if DEBUG_OMAP3UART4
1634        default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1635                                DEBUG_S3C2410_UART0)
1636        default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1637                                DEBUG_S3C2410_UART1)
1638        default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1639                                DEBUG_S3C2410_UART2)
1640        default 0x78000000 if DEBUG_CNS3XXX
1641        default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1642        default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1643        default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1644        default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1645        default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1646        default 0x80010000 if DEBUG_ASM9260_UART
1647        default 0x80070000 if DEBUG_IMX23_UART
1648        default 0x80074000 if DEBUG_IMX28_UART
1649        default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1650        default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1651        default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1652        default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1653        default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1654        default 0xd0000000 if DEBUG_SPEAR3XX
1655        default 0xd0012000 if DEBUG_MVEBU_UART0
1656        default 0xc81004c0 if DEBUG_MESON_UARTAO
1657        default 0xd4017000 if DEBUG_MMP_UART2
1658        default 0xd4018000 if DEBUG_MMP_UART3
1659        default 0xe0000000 if DEBUG_SPEAR13XX
1660        default 0xe4007000 if DEBUG_HIP04_UART
1661        default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1662        default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1663        default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2
1664        default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1665        default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1666        default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1667        default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1668        default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1669        default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
1670        default 0xe8009000 if DEBUG_R7S9210_SCIF4
1671        default 0xf0000000 if DEBUG_DIGICOLOR_UA0
1672        default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1673        default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1674        default 0xf7fc9000 if DEBUG_BERLIN_UART
1675        default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1676        default 0xf8b00000 if DEBUG_HIX5HD2_UART
1677        default 0xf991e000 if DEBUG_QCOM_UARTDM
1678        default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1679        default 0xfcb00000 if DEBUG_HI3620_UART
1680        default 0xfd883000 if DEBUG_ALPINE_UART0
1681        default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1
1682        default 0xfe800000 if ARCH_IOP32X
1683        default 0xfed32000 if DEBUG_STIH41X_ASC2
1684        default 0xff690000 if DEBUG_RK32_UART2
1685        default 0xffc02000 if DEBUG_SOCFPGA_UART0
1686        default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1687        default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1688        default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1689        default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1690        default 0xfff36000 if DEBUG_HIGHBANK_UART
1691        default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1692        default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1693        default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1694        default 0xfffe8600 if DEBUG_BCM63XX_UART
1695        default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1696        default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1697        depends on ARCH_EP93XX || \
1698                DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1699                DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1700                DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1701                DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
1702                DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1703                DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1704                DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1705                DEBUG_RCAR_GEN2_SCIFA2 || \
1706                DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1707                DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1708                DEBUG_S3C64XX_UART || \
1709                DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1710                DEBUG_DIGICOLOR_UA0 || \
1711                DEBUG_AT91_UART || DEBUG_STM32_UART || \
1712                DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1713                DEBUG_STIH418_SBC_ASC0
1714
1715config DEBUG_UART_VIRT
1716        hex "Virtual base address of debug UART"
1717        default 0xc881f000 if DEBUG_RV1108_UART2
1718        default 0xc8821000 if DEBUG_RV1108_UART1
1719        default 0xc8912000 if DEBUG_RV1108_UART0
1720        default 0xe0010fe0 if ARCH_RPC
1721        default 0xf0010000 if DEBUG_ASM9260_UART
1722        default 0xf0100000 if DEBUG_DIGICOLOR_UA0
1723        default 0xf01fb000 if DEBUG_NOMADIK_UART
1724        default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1725        default 0xf1000300 if DEBUG_BCM_5301X
1726        default 0xf1000400 if DEBUG_BCM_HR2
1727        default 0xf1002000 if DEBUG_MT8127_UART0
1728        default 0xf1006000 if DEBUG_MT6589_UART0
1729        default 0xf1009000 if DEBUG_MT8135_UART3
1730        default 0xf1023000 if DEBUG_BCM_IPROC_UART3
1731        default 0xf11f1000 if DEBUG_VERSATILE
1732        default 0xf1600000 if DEBUG_INTEGRATOR
1733        default 0xf1c28000 if DEBUG_SUNXI_UART0
1734        default 0xf1c28400 if DEBUG_SUNXI_UART1
1735        default 0xf1f02800 if DEBUG_SUNXI_R_UART
1736        default 0xf31004c0 if DEBUG_MESON_UARTAO
1737        default 0xf4090000 if DEBUG_LPC32XX
1738        default 0xf4200000 if DEBUG_GEMINI
1739        default 0xf6200000 if DEBUG_PXA_UART1
1740        default 0xf7000000 if DEBUG_SUN9I_UART0
1741        default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1742        default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1743                                DEBUG_S3C2410_UART0)
1744        default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1745        default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1746        default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1747        default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1748                                DEBUG_S3C2410_UART1)
1749        default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1750                                DEBUG_S3C2410_UART2)
1751        default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1752        default 0xf7fc9000 if DEBUG_BERLIN_UART
1753        default 0xf8007000 if DEBUG_HIP04_UART
1754        default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1755        default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1756        default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1757        default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1758        default 0xf9530000 if DEBUG_STIH418_SBC_ASC0
1759        default 0xf9e09000 if DEBUG_AM33XXUART1
1760        default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1761        default 0xfa022000 if DEBUG_TI81XXUART2
1762        default 0xfa024000 if DEBUG_TI81XXUART3
1763        default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1764                                DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1765        default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1766                                DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1767        default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1768        default 0xfa71e000 if DEBUG_QCOM_UARTDM
1769        default 0xfb002000 if DEBUG_CNS3XXX
1770        default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1771        default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1772        default 0xfb020000 if DEBUG_OMAP3UART3
1773        default 0xfb042000 if DEBUG_OMAP3UART4
1774        default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1775        default 0xfcfe8600 if DEBUG_BCM63XX_UART
1776        default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1777        default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1
1778        default 0xfd883000 if DEBUG_ALPINE_UART0
1779        default 0xfdd32000 if DEBUG_STIH41X_ASC2
1780        default 0xfe010000 if STM32MP1_DEBUG_UART
1781        default 0xfe017000 if DEBUG_MMP_UART2
1782        default 0xfe018000 if DEBUG_MMP_UART3
1783        default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1784        default 0xfe300000 if DEBUG_BCM_KONA_UART
1785        default 0xfe800000 if ARCH_IOP32X
1786        default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1787        default 0xfeb24000 if DEBUG_RK3X_UART0
1788        default 0xfeb26000 if DEBUG_RK3X_UART1
1789        default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1790        default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1791        default 0xfec02000 if DEBUG_SOCFPGA_UART0
1792        default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1793        default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1794        default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1795        default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1796        default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1797        default 0xfec90000 if DEBUG_RK32_UART2
1798        default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1799        default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART
1800        default 0xfed60000 if DEBUG_RK29_UART0
1801        default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1802        default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1803        default 0xfedc0000 if DEBUG_EP93XX
1804        default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1805        default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1806        default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1807        default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1808        default 0xfef36000 if DEBUG_HIGHBANK_UART
1809        default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1810        default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1811        default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1812        default 0xffd01000 if DEBUG_HIP01_UART
1813        default DEBUG_UART_PHYS if !MMU
1814        depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1815                DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1816                DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1817                DEBUG_S3C64XX_UART || \
1818                DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1819                DEBUG_DIGICOLOR_UA0 || \
1820                DEBUG_AT91_UART || DEBUG_STM32_UART || \
1821                DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1822                DEBUG_STIH418_SBC_ASC0
1823
1824config DEBUG_UART_8250_SHIFT
1825        int "Register offset shift for the 8250 debug UART"
1826        depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1827        default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1828                DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \
1829                DEBUG_OMAP7XXUART3
1830        default 2
1831
1832config DEBUG_UART_8250_WORD
1833        bool "Use 32-bit accesses for 8250 UART"
1834        depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1835        depends on DEBUG_UART_8250_SHIFT >= 2
1836        default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
1837                DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
1838                DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
1839                DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1840                DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \
1841                DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1842
1843config DEBUG_UART_8250_PALMCHIP
1844        bool "8250 UART is Palmchip BK-310x"
1845        depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1846        help
1847          Palmchip provides a UART implementation compatible with 16550
1848          except for having a different register layout.  Say Y here if
1849          the debug UART is of this type.
1850
1851config DEBUG_UNCOMPRESS
1852        bool "Enable decompressor debugging via DEBUG_LL output"
1853        depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1854        depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1855                     (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1856                     !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING
1857        help
1858          This option influences the normal decompressor output for
1859          multiplatform kernels.  Normally, multiplatform kernels disable
1860          decompressor output because it is not possible to know where to
1861          send the decompressor output.
1862
1863          When this option is set, the selected DEBUG_LL output method
1864          will be re-used for normal decompressor output on multiplatform
1865          kernels.
1866          
1867
1868config UNCOMPRESS_INCLUDE
1869        string
1870        default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1871                                        PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1872        default "mach/uncompress.h"
1873
1874config EARLY_PRINTK
1875        bool "Early printk"
1876        depends on DEBUG_LL
1877        help
1878          Say Y here if you want to have an early console using the
1879          kernel low-level debugging functions. Add earlyprintk to your
1880          kernel parameters to enable this console.
1881
1882config ARM_KPROBES_TEST
1883        tristate "Kprobes test module"
1884        depends on KPROBES && MODULES
1885        help
1886          Perform tests of kprobes API and instruction set simulation.
1887
1888config PID_IN_CONTEXTIDR
1889        bool "Write the current PID to the CONTEXTIDR register"
1890        depends on CPU_COPY_V6
1891        help
1892          Enabling this option causes the kernel to write the current PID to
1893          the PROCID field of the CONTEXTIDR register, at the expense of some
1894          additional instructions during context switch. Say Y here only if you
1895          are planning to use hardware trace tools with this kernel.
1896
1897source "drivers/hwtracing/coresight/Kconfig"
1898