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 ARM_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
  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 BACKTRACE_VERBOSE
  83	bool "Verbose backtrace"
  84	depends on EXPERT
  85	help
  86	  When the kernel produces a warning or oops, the kernel prints a
  87	  trace of the call chain. This option controls whether we include
  88	  the numeric addresses or only include the symbolic information.
  89
  90	  In most cases, say N here, unless you are intending to debug the
  91	  kernel and have access to the kernel binary image.
  92
 
 
 
  93config DEBUG_USER
  94	bool "Verbose user fault messages"
  95	help
  96	  When a user program crashes due to an exception, the kernel can
  97	  print a brief message explaining what the problem was. This is
  98	  sometimes helpful for debugging but serves no purpose on a
  99	  production system. Most people should say N here.
 100
 101	  In addition, you need to pass user_debug=N on the kernel command
 102	  line to enable this feature.  N consists of the sum of:
 103
 104	      1 - undefined instruction events
 105	      2 - system calls
 106	      4 - invalid data aborts
 107	      8 - SIGSEGV faults
 108	     16 - SIGBUS faults
 109
 110# These options are only for real kernel hackers who want to get their hands dirty.
 111config DEBUG_LL
 112	bool "Kernel low-level debugging functions (read help!)"
 113	depends on DEBUG_KERNEL
 114	help
 115	  Say Y here to include definitions of printascii, printch, printhex
 116	  in the kernel.  This is helpful if you are debugging code that
 117	  executes before the console is initialized.
 118
 119	  Note that selecting this option will limit the kernel to a single
 120	  UART definition, as specified below. Attempting to boot the kernel
 121	  image on a different platform *will not work*, so this option should
 122	  not be enabled for kernels that are intended to be portable.
 123
 124choice
 125	prompt "Kernel low-level debugging port"
 126	depends on DEBUG_LL
 127
 128	config DEBUG_ALPINE_UART0
 129		bool "Kernel low-level debugging messages via Alpine UART0"
 130		depends on ARCH_ALPINE
 131		select DEBUG_UART_8250
 132		help
 133		  Say Y here if you want kernel low-level debugging support
 134		  on Alpine based platforms.
 135
 136	config DEBUG_ASM9260_UART
 137		bool "Kernel low-level debugging via asm9260 UART"
 138		depends on MACH_ASM9260
 139		help
 140		  Say Y here if you want the debug print routines to direct
 141		  their output to an UART or USART port on asm9260 based
 142		  machines.
 143
 144		    DEBUG_UART_PHYS | DEBUG_UART_VIRT
 145
 146		    0x80000000      | 0xf0000000     | UART0
 147		    0x80004000      | 0xf0004000     | UART1
 148		    0x80008000      | 0xf0008000     | UART2
 149		    0x8000c000      | 0xf000c000     | UART3
 150		    0x80010000      | 0xf0010000     | UART4
 151		    0x80014000      | 0xf0014000     | UART5
 152		    0x80018000      | 0xf0018000     | UART6
 153		    0x8001c000      | 0xf001c000     | UART7
 154		    0x80020000      | 0xf0020000     | UART8
 155		    0x80024000      | 0xf0024000     | UART9
 156
 157	config DEBUG_AT91_RM9200_DBGU
 158		bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
 159		select DEBUG_AT91_UART
 160		depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
 161		help
 162		  Say Y here if you want kernel low-level debugging support
 163		  on the DBGU port of:
 164		    at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
 165		    at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
 166
 167	config DEBUG_AT91_SAM9263_DBGU
 168		bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
 169		select DEBUG_AT91_UART
 170		depends on SOC_AT91SAM9 || SOC_SAMA5D3
 171		help
 172		  Say Y here if you want kernel low-level debugging support
 173		  on the DBGU port of:
 174		    at91sam9263, at91sam9g45, at91sam9m10,
 175		    sama5d3
 176
 177	config DEBUG_AT91_SAMA5D2_UART1
 178		bool "Kernel low-level debugging on SAMA5D2 UART1"
 179		select DEBUG_AT91_UART
 180		depends on SOC_SAMA5D2
 181		help
 182		  Say Y here if you want kernel low-level debugging support
 183		  on the UART1 port of sama5d2.
 184
 185	config DEBUG_AT91_SAMA5D4_USART3
 186		bool "Kernel low-level debugging on SAMA5D4 USART3"
 187		select DEBUG_AT91_UART
 188		depends on SOC_SAMA5D4
 189		help
 190		  Say Y here if you want kernel low-level debugging support
 191		  on the USART3 port of sama5d4.
 192
 193	config DEBUG_AT91_SAMV7_USART1
 194		bool "Kernel low-level debugging via SAMV7 USART1"
 195		select DEBUG_AT91_UART
 196		depends on SOC_SAMV7
 197		help
 198		  Say Y here if you want the debug print routines to direct
 199		  their output to the USART1 port on SAMV7 based
 200		  machines.
 201
 202	config DEBUG_AT91_SAMA7G5_FLEXCOM3
 203		bool "Kernel low-level debugging on SAMA7G5 FLEXCOM3"
 204		select DEBUG_AT91_UART
 205		depends on SOC_SAMA7G5
 206		help
 207		  Say Y here if you want kernel low-level debugging support
 208		  on the FLEXCOM3 port of SAMA7G5.
 209
 210	config DEBUG_AT91_LAN966_FLEXCOM
 211		bool "Kernel low-level debugging on LAN966 FLEXCOM USART"
 212		select DEBUG_AT91_UART
 213		depends on SOC_LAN966
 214		help
 215		Say Y here if you want kernel low-level debugging support
 216		on the FLEXCOM port of LAN966.
 217
 218		DEBUG_UART_PHYS | DEBUG_UART_VIRT
 219
 220		0xe0040200      | 0xfd040200     | FLEXCOM0
 221		0xe0044200      | 0xfd044200     | FLEXCOM1
 222		0xe0060200      | 0xfd060200     | FLEXCOM2
 223		0xe0064200      | 0xfd064200     | FLEXCOM3
 224		0xe0070200      | 0xfd070200     | FLEXCOM4
 225
 226		By default, enabling FLEXCOM3 port. Based on requirement, use
 227		DEBUG_UART_PHYS and DEBUG_UART_VIRT configurations from above
 228		table.
 229
 230	config DEBUG_BCM2835
 231		bool "Kernel low-level debugging on BCM2835 PL011 UART"
 232		depends on ARCH_BCM2835 && ARCH_MULTI_V6
 233		select DEBUG_UART_PL01X
 234
 235	config DEBUG_BCM2836
 236		bool "Kernel low-level debugging on BCM2836 PL011 UART"
 237		depends on ARCH_BCM2835 && ARCH_MULTI_V7
 238		select DEBUG_UART_PL01X
 239
 240	config DEBUG_BCM_5301X
 241		bool "Kernel low-level debugging on BCM5301X/NSP UART1"
 242		depends on ARCH_BCM_5301X || ARCH_BCM_NSP
 243		select DEBUG_UART_8250
 244
 245	config DEBUG_BCMBCA
 246		bool "Kernel low-level debugging on BCMBCA UART0"
 247		depends on ARCH_BCMBCA
 248
 249	config DEBUG_BCM_HR2
 250		bool "Kernel low-level debugging on Hurricane 2 UART2"
 251		depends on ARCH_BCM_HR2
 252		select DEBUG_UART_8250
 253
 254	config DEBUG_BCM_IPROC_UART3
 255		bool "Kernel low-level debugging on BCM IPROC UART3"
 256		depends on ARCH_BCM_CYGNUS
 257		select DEBUG_UART_8250
 258		help
 259		  Say Y here if you want the debug print routines to direct
 260		  their output to the third serial port on these devices.
 261
 262	config DEBUG_BCM_KONA_UART
 263		bool "Kernel low-level debugging messages via BCM KONA UART"
 264		depends on ARCH_BCM_MOBILE
 265		select DEBUG_UART_8250
 266		help
 267		  Say Y here if you want kernel low-level debugging support
 268		  on Broadcom SoC platforms.
 269		  This low level debug works for Broadcom
 270		  mobile SoCs in the Kona family of chips (e.g. bcm28155,
 271		  bcm11351, etc...)
 272
 273	config DEBUG_BCM63XX_UART
 274		bool "Kernel low-level debugging on BCM63XX UART"
 275		depends on ARCH_BCMBCA
 276
 277	config DEBUG_BERLIN_UART
 278		bool "Marvell Berlin SoC Debug UART"
 279		depends on ARCH_BERLIN
 280		select DEBUG_UART_8250
 281		help
 282		  Say Y here if you want kernel low-level debugging support
 283		  on Marvell Berlin SoC based platforms.
 284
 285	config DEBUG_BRCMSTB_UART
 286		bool "Use BRCMSTB UART for low-level debug"
 287		depends on ARCH_BRCMSTB
 288		help
 289		  Say Y here if you want the debug print routines to direct
 290		  their output to the first serial port on these devices. The
 291		  UART physical and virtual address is automatically provided
 292		  based on the chip identification register value.
 293
 294		  If you have a Broadcom STB chip and would like early print
 295		  messages to appear over the UART, select this option.
 296
 297	config DEBUG_CLPS711X_UART1
 298		bool "Kernel low-level debugging messages via UART1"
 299		depends on ARCH_CLPS711X
 300		help
 301		  Say Y here if you want the debug print routines to direct
 302		  their output to the first serial port on these devices.
 303
 304	config DEBUG_CLPS711X_UART2
 305		bool "Kernel low-level debugging messages via UART2"
 306		depends on ARCH_CLPS711X
 307		help
 308		  Say Y here if you want the debug print routines to direct
 309		  their output to the second serial port on these devices.
 310
 311	config DEBUG_DAVINCI_DA8XX_UART1
 312		bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
 313		depends on ARCH_DAVINCI_DA8XX
 314		select DEBUG_UART_8250
 315		help
 316		  Say Y here if you want the debug print routines to direct
 317		  their output to UART1 serial port on DaVinci DA8XX devices.
 318
 319	config DEBUG_DAVINCI_DA8XX_UART2
 320		bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
 321		depends on ARCH_DAVINCI_DA8XX
 322		select DEBUG_UART_8250
 323		help
 324		  Say Y here if you want the debug print routines to direct
 325		  their output to UART2 serial port on DaVinci DA8XX devices.
 326
 327	config DEBUG_DC21285_PORT
 328		bool "Kernel low-level debugging messages via footbridge serial port"
 329		depends on FOOTBRIDGE
 330		help
 331		  Say Y here if you want the debug print routines to direct
 332		  their output to the serial port in the DC21285 (Footbridge).
 333
 334	config DEBUG_DIGICOLOR_UA0
 335		bool "Kernel low-level debugging messages via Digicolor UA0"
 336		depends on ARCH_DIGICOLOR
 337		help
 338		  Say Y here if you want the debug print routines to direct
 339		  their output to the UA0 serial port in the CX92755.
 340
 341	config DEBUG_EP93XX
 342		bool "Kernel low-level debugging messages via ep93xx UART"
 343		depends on ARCH_EP93XX
 344		select DEBUG_UART_PL01X
 345		help
 346		  Say Y here if you want kernel low-level debugging support
 347		  on Cirrus Logic EP93xx based platforms.
 348
 349	config DEBUG_FOOTBRIDGE_COM1
 350		bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
 351		depends on FOOTBRIDGE
 352		select DEBUG_UART_8250
 353		help
 354		  Say Y here if you want the debug print routines to direct
 355		  their output to the 8250 at PCI COM1.
 356
 357	config DEBUG_GEMINI
 358		bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
 359		depends on ARCH_GEMINI
 360		select DEBUG_UART_8250
 361		help
 362		  Say Y here if you want kernel low-level debugging support
 363		  on Cortina Gemini based platforms.
 364
 365	config DEBUG_HI3620_UART
 366		bool "Hisilicon HI3620 Debug UART"
 367		depends on ARCH_HI3xxx
 368		select DEBUG_UART_PL01X
 369		help
 370		  Say Y here if you want kernel low-level debugging support
 371		  on HI3620 UART.
 372
 373	config DEBUG_HIGHBANK_UART
 374		bool "Kernel low-level debugging messages via Highbank UART"
 375		depends on ARCH_HIGHBANK
 376		select DEBUG_UART_PL01X
 377		help
 378		  Say Y here if you want the debug print routines to direct
 379		  their output to the UART on Highbank based devices.
 380
 381	config DEBUG_HIP01_UART
 382		bool "Hisilicon Hip01 Debug UART"
 383		depends on ARCH_HIP01
 384		select DEBUG_UART_8250
 385		help
 386		  Say Y here if you want kernel low-level debugging support
 387		  on HIP01 UART.
 388
 389	config DEBUG_HIP04_UART
 390		bool "Hisilicon HiP04 Debug UART"
 391		depends on ARCH_HIP04
 392		select DEBUG_UART_8250
 393		help
 394		  Say Y here if you want kernel low-level debugging support
 395		  on HIP04 UART.
 396
 397	config DEBUG_HIX5HD2_UART
 398		bool "Hisilicon Hix5hd2 Debug UART"
 399		depends on ARCH_HIX5HD2
 400		select DEBUG_UART_PL01X
 401		help
 402		  Say Y here if you want kernel low-level debugging support
 403		  on Hix5hd2 UART.
 404
 405	config DEBUG_IMX1_UART
 406		bool "i.MX1 Debug UART"
 407		depends on SOC_IMX1
 408		help
 409		  Say Y here if you want kernel low-level debugging support
 410		  on i.MX1.
 411
 412	config DEBUG_IMX23_UART
 413		bool "i.MX23 Debug UART"
 414		depends on SOC_IMX23
 415		select DEBUG_UART_PL01X
 416		help
 417		  Say Y here if you want kernel low-level debugging support
 418		  on i.MX23.
 419
 420	config DEBUG_IMX25_UART
 421		bool "i.MX25 Debug UART"
 422		depends on SOC_IMX25
 423		help
 424		  Say Y here if you want kernel low-level debugging support
 425		  on i.MX25.
 426
 427	config DEBUG_IMX27_UART
 428		bool "i.MX27 Debug UART"
 429		depends on SOC_IMX27
 430		help
 431		  Say Y here if you want kernel low-level debugging support
 432		  on i.MX27.
 433
 434	config DEBUG_IMX28_UART
 435		bool "i.MX28 Debug UART"
 436		depends on SOC_IMX28
 437		select DEBUG_UART_PL01X
 438		help
 439		  Say Y here if you want kernel low-level debugging support
 440		  on i.MX28.
 441
 442	config DEBUG_IMX31_UART
 443		bool "i.MX31 Debug UART"
 444		depends on SOC_IMX31
 445		help
 446		  Say Y here if you want kernel low-level debugging support
 447		  on i.MX31.
 448
 449	config DEBUG_IMX35_UART
 450		bool "i.MX35 Debug UART"
 451		depends on SOC_IMX35
 452		help
 453		  Say Y here if you want kernel low-level debugging support
 454		  on i.MX35.
 455
 456	config DEBUG_IMX50_UART
 457		bool "i.MX50 Debug UART"
 458		depends on SOC_IMX50
 459		help
 460		  Say Y here if you want kernel low-level debugging support
 461		  on i.MX50.
 462
 463	config DEBUG_IMX51_UART
 464		bool "i.MX51 Debug UART"
 465		depends on SOC_IMX51
 466		help
 467		  Say Y here if you want kernel low-level debugging support
 468		  on i.MX51.
 469
 470	config DEBUG_IMX53_UART
 471		bool "i.MX53 Debug UART"
 472		depends on SOC_IMX53
 473		help
 474		  Say Y here if you want kernel low-level debugging support
 475		  on i.MX53.
 476
 477	config DEBUG_IMX6Q_UART
 478		bool "i.MX6Q/DL Debug UART"
 479		depends on SOC_IMX6Q
 480		help
 481		  Say Y here if you want kernel low-level debugging support
 482		  on i.MX6Q/DL.
 483
 484	config DEBUG_IMX6SL_UART
 485		bool "i.MX6SL Debug UART"
 486		depends on SOC_IMX6SL
 487		help
 488		  Say Y here if you want kernel low-level debugging support
 489		  on i.MX6SL.
 490
 491	config DEBUG_IMX6SX_UART
 492		bool "i.MX6SX Debug UART"
 493		depends on SOC_IMX6SX
 494		help
 495		  Say Y here if you want kernel low-level debugging support
 496		  on i.MX6SX.
 497
 498	config DEBUG_IMX6UL_UART
 499		bool "i.MX6UL Debug UART"
 500		depends on SOC_IMX6UL
 501		help
 502		  Say Y here if you want kernel low-level debugging support
 503		  on i.MX6UL.
 504
 505	config DEBUG_IMX7D_UART
 506		bool "i.MX7D Debug UART"
 507		depends on SOC_IMX7D
 508		help
 509		  Say Y here if you want kernel low-level debugging support
 510		  on i.MX7D.
 511
 512	config DEBUG_INTEGRATOR
 513		bool "Kernel low-level debugging messages via ARM Integrator UART"
 514		depends on ARCH_INTEGRATOR
 515		select DEBUG_UART_PL01X
 516		help
 517		  Say Y here if you want kernel low-level debugging support
 518		  on ARM Integrator platforms.
 519
 520	config DEBUG_KEYSTONE_UART0
 521		bool "Kernel low-level debugging on KEYSTONE2 using UART0"
 522		depends on ARCH_KEYSTONE
 523		select DEBUG_UART_8250
 524		help
 525		  Say Y here if you want the debug print routines to direct
 526		  their output to UART0 serial port on KEYSTONE2 devices.
 527
 528	config DEBUG_KEYSTONE_UART1
 529		bool "Kernel low-level debugging on KEYSTONE2 using UART1"
 530		depends on ARCH_KEYSTONE
 531		select DEBUG_UART_8250
 532		help
 533		  Say Y here if you want the debug print routines to direct
 534		  their output to UART1 serial port on KEYSTONE2 devices.
 535
 536	config DEBUG_LPC18XX_UART0
 537		bool "Kernel low-level debugging via LPC18xx/43xx UART0"
 538		depends on ARCH_LPC18XX
 539		select DEBUG_UART_8250
 540		help
 541		  Say Y here if you want kernel low-level debugging support
 542		  on NXP LPC18xx/43xx UART0.
 543
 544	config DEBUG_LPC32XX
 545		bool "Kernel low-level debugging messages via NXP LPC32xx UART"
 546		depends on ARCH_LPC32XX
 547		select DEBUG_UART_8250
 548		help
 549		  Say Y here if you want kernel low-level debugging support
 550		  on NXP LPC32xx based platforms.
 551
 552	config DEBUG_MESON_UARTAO
 553		bool "Kernel low-level debugging via Meson6 UARTAO"
 554		depends on ARCH_MESON
 555		help
 556		  Say Y here if you want kernel low-lever debugging support
 557		  on Amlogic Meson6 based platforms on the UARTAO.
 558
 559	config DEBUG_MMP_UART2
 560		bool "Kernel low-level debugging message via MMP UART2"
 561		depends on ARCH_MMP
 562		select DEBUG_UART_8250
 563		help
 564		  Say Y here if you want kernel low-level debugging support
 565		  on MMP UART2.
 566
 567	config DEBUG_MMP_UART3
 568		bool "Kernel low-level debugging message via MMP UART3"
 569		depends on ARCH_MMP
 570		select DEBUG_UART_8250
 571		help
 572		  Say Y here if you want kernel low-level debugging support
 573		  on MMP UART3.
 574
 575	config DEBUG_MVEBU_UART0
 576		bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
 577		depends on ARCH_MVEBU
 578		depends on ARCH_MVEBU && CPU_V7
 579		select DEBUG_UART_8250
 580		help
 581		  Say Y here if you want kernel low-level debugging support
 582		  on MVEBU based platforms on UART0.
 583
 584		  This option should be used with the old bootloaders
 585		  that left the internal registers mapped at
 586		  0xd0000000. As of today, this is the case on
 587		  platforms such as the Globalscale Mirabox or the
 588		  Plathome OpenBlocks AX3, when using the original
 589		  bootloader.
 590
 591		  This option will not work on older Marvell platforms
 592		  (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
 593		  the "new bootloader" variant.
 594
 595		  If the wrong DEBUG_MVEBU_UART* option is selected,
 596		  when u-boot hands over to the kernel, the system
 597		  silently crashes, with no serial output at all.
 598
 599	config DEBUG_MVEBU_UART0_ALTERNATE
 600		bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
 601		depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
 602		select DEBUG_UART_8250
 603		help
 604		  Say Y here if you want kernel low-level debugging support
 605		  on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
 606		  Kirkwood, Dove, MV78xx0, Orion5x).
 607
 608
 609		  This option should be used with the new bootloaders
 610		  that remap the internal registers at 0xf1000000.
 611
 612		  If the wrong DEBUG_MVEBU_UART* option is selected,
 613		  when u-boot hands over to the kernel, the system
 614		  silently crashes, with no serial output at all.
 615
 616	config DEBUG_MVEBU_UART1_ALTERNATE
 617		bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
 618		depends on ARCH_MVEBU
 619		select DEBUG_UART_8250
 620		help
 621		  Say Y here if you want kernel low-level debugging support
 622		  on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
 623		  Kirkwood, Dove, MV78xx0, Orion5x).
 624
 625		  This option should be used with the new bootloaders
 626		  that remap the internal registers at 0xf1000000.
 627		  All of the older (pre Armada XP/370) platforms also use
 628		  this address, regardless of the boot loader version.
 629
 630		  If the wrong DEBUG_MVEBU_UART* option is selected,
 631		  when u-boot hands over to the kernel, the system
 632		  silently crashes, with no serial output at all.
 633
 634	config DEBUG_MSTARV7_PMUART
 635		bool "Kernel low-level debugging messages via MSTARV7 PM UART"
 636		depends on ARCH_MSTARV7
 637		select DEBUG_UART_8250
 638		help
 639		  Say Y here if you want kernel low-level debugging support
 640		  for MSTAR ARMv7-based platforms on PM UART.
 641
 642	config DEBUG_MT6589_UART0
 643		bool "Mediatek mt6589 UART0"
 644		depends on ARCH_MEDIATEK
 645		select DEBUG_UART_8250
 646		help
 647		  Say Y here if you want kernel low-level debugging support
 648		  for Mediatek mt6589 based platforms on UART0.
 649
 650	config DEBUG_MT8127_UART0
 651		bool "Mediatek mt8127/mt6592 UART0"
 652		depends on ARCH_MEDIATEK
 653		select DEBUG_UART_8250
 654		help
 655		  Say Y here if you want kernel low-level debugging support
 656		  for Mediatek mt8127 based platforms on UART0.
 657
 658	config DEBUG_MT8135_UART3
 659		bool "Mediatek mt8135 UART3"
 660		depends on ARCH_MEDIATEK
 661		select DEBUG_UART_8250
 662		help
 663		  Say Y here if you want kernel low-level debugging support
 664		  for Mediatek mt8135 based platforms on UART3.
 665
 666	config DEBUG_NOMADIK_UART
 667		bool "Kernel low-level debugging messages via NOMADIK UART"
 668		depends on ARCH_NOMADIK
 669		select DEBUG_UART_PL01X
 670		help
 671		  Say Y here if you want kernel low-level debugging support
 672		  on NOMADIK based platforms.
 673
 674	config DEBUG_NSPIRE_CLASSIC_UART
 675		bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
 676		depends on ARCH_NSPIRE
 677		select DEBUG_UART_8250
 678		help
 679		  Say Y here if you want kernel low-level debugging support
 680		  on TI-NSPIRE classic models.
 681
 682	config DEBUG_NSPIRE_CX_UART
 683		bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
 684		depends on ARCH_NSPIRE
 685		select DEBUG_UART_PL01X
 686		help
 687		  Say Y here if you want kernel low-level debugging support
 688		  on TI-NSPIRE CX models.
 689
 690	config DEBUG_OMAP1UART1
 691		bool "Kernel low-level debugging via OMAP1 UART1"
 692		depends on ARCH_OMAP1
 693		select DEBUG_UART_8250
 694		help
 695		  Say Y here if you want kernel low-level debugging support
 696		  on OMAP1 based platforms (except OMAP730) on the UART1.
 697
 698	config DEBUG_OMAP1UART2
 699		bool "Kernel low-level debugging via OMAP1 UART2"
 700		depends on ARCH_OMAP1
 701		select DEBUG_UART_8250
 702		help
 703		  Say Y here if you want kernel low-level debugging support
 704		  on OMAP1 based platforms (except OMAP730) on the UART2.
 705
 706	config DEBUG_OMAP1UART3
 707		bool "Kernel low-level debugging via OMAP1 UART3"
 708		depends on ARCH_OMAP1
 709		select DEBUG_UART_8250
 710		help
 711		  Say Y here if you want kernel low-level debugging support
 712		  on OMAP1 based platforms (except OMAP730) on the UART3.
 713
 714	config DEBUG_OMAP2UART1
 715		bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
 716		depends on ARCH_OMAP2PLUS
 717		select DEBUG_UART_8250
 718		help
 719		  This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
 720		  omap3 torpedo and 3530 lv som.
 721
 722	config DEBUG_OMAP2UART2
 723		bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
 724		depends on ARCH_OMAP2PLUS
 725		select DEBUG_UART_8250
 726
 727	config DEBUG_OMAP2UART3
 728		bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
 729		depends on ARCH_OMAP2PLUS
 730		select DEBUG_UART_8250
 731
 732	config DEBUG_OMAP3UART3
 733		bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
 734		depends on ARCH_OMAP2PLUS
 735		select DEBUG_UART_8250
 736		help
 737		  This covers at least cm_t3x, beagle, crane, devkit8000,
 738		  igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
 739		  and 3517evm.
 740
 741	config DEBUG_OMAP4UART3
 742		bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
 743		depends on ARCH_OMAP2PLUS
 744		select DEBUG_UART_8250
 745
 746	config DEBUG_OMAP3UART4
 747		bool "Kernel low-level debugging messages via OMAP36XX UART4"
 748		depends on ARCH_OMAP2PLUS
 749		select DEBUG_UART_8250
 750
 751	config DEBUG_OMAP4UART4
 752		bool "Kernel low-level debugging messages via OMAP4/5 UART4"
 753		depends on ARCH_OMAP2PLUS
 754		select DEBUG_UART_8250
 755
 756	config DEBUG_TI81XXUART1
 757		bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
 758		depends on ARCH_OMAP2PLUS
 759		select DEBUG_UART_8250
 760
 761	config DEBUG_TI81XXUART2
 762		bool "Kernel low-level debugging messages via TI81XX UART2"
 763		depends on ARCH_OMAP2PLUS
 764		select DEBUG_UART_8250
 765
 766	config DEBUG_TI81XXUART3
 767		bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
 768		depends on ARCH_OMAP2PLUS
 769		select DEBUG_UART_8250
 770
 771	config DEBUG_AM33XXUART1
 772		bool "Kernel low-level debugging messages via AM33XX UART1"
 773		depends on ARCH_OMAP2PLUS
 774		select DEBUG_UART_8250
 775
 776	config DEBUG_ZOOM_UART
 777		bool "Kernel low-level debugging messages via Zoom2/3 UART"
 778		depends on ARCH_OMAP2PLUS
 779		select DEBUG_OMAP2PLUS_UART
 780
 781	config DEBUG_PXA_UART1
 782		depends on ARCH_PXA
 783		bool "Use PXA UART1 for low-level debug"
 784		select DEBUG_UART_8250
 785		help
 786		  Say Y here if you want kernel low-level debugging support
 787		  on PXA UART1.
 788
 789	config DEBUG_QCOM_UARTDM
 790		bool "Kernel low-level debugging messages via QCOM UARTDM"
 791		depends on ARCH_QCOM
 792		help
 793		  Say Y here if you want the debug print routines to direct
 794		  their output to the serial port on Qualcomm devices.
 795
 796		  ARCH      DEBUG_UART_PHYS   DEBUG_UART_VIRT
 797		  APQ8064   0x16640000        0xf0040000
 798		  APQ8084   0xf995e000        0xfa75e000
 799		  IPQ4019   0x078af000        0xf78af000
 800		  MSM8X60   0x19c40000        0xf0040000
 801		  MSM8960   0x16440000        0xf0040000
 802		  MSM8974   0xf991e000        0xfa71e000
 803
 804		  Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
 805		  options based on your needs.
 806
 807	config DEBUG_REALVIEW_STD_PORT
 808		bool "RealView Default UART"
 809		depends on ARCH_REALVIEW
 810		select DEBUG_UART_PL01X
 811		help
 812		  Say Y here if you want the debug print routines to direct
 813		  their output to the serial port on RealView EB, PB11MP, PBA8
 814		  and PBX platforms.
 815
 816	config DEBUG_REALVIEW_PB1176_PORT
 817		bool "RealView PB1176 UART"
 818		depends on MACH_REALVIEW_PB1176
 819		select DEBUG_UART_PL01X
 820		help
 821		  Say Y here if you want the debug print routines to direct
 822		  their output to the standard serial port on the RealView
 823		  PB1176 platform.
 824
 825	config DEBUG_RV1108_UART0
 826		bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
 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_UART1
 834		bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
 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_RV1108_UART2
 842		bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
 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 RV1108 based platforms.
 848
 849	config DEBUG_RK29_UART0
 850		bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
 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_UART1
 858		bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
 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_RK29_UART2
 866		bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
 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_UART0
 874		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
 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_UART1
 882		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
 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_UART2
 890		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
 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_RK3X_UART3
 898		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
 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 based platforms.
 904
 905	config DEBUG_RK32_UART2
 906		bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
 907		depends on ARCH_ROCKCHIP
 908		select DEBUG_UART_8250
 909		help
 910		  Say Y here if you want kernel low-level debugging support
 911		  on Rockchip RK32xx based platforms.
 912
 913	config DEBUG_R7S72100_SCIF2
 914		bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
 915		depends on ARCH_R7S72100
 916		help
 917		  Say Y here if you want kernel low-level debugging support
 918		  via SCIF2 on Renesas RZ/A1H (R7S72100).
 919
 920	config DEBUG_R7S9210_SCIF2
 921		bool "Kernel low-level debugging messages via SCIF2 on R7S9210"
 922		depends on ARCH_R7S9210
 923		help
 924		  Say Y here if you want kernel low-level debugging support
 925		  via SCIF2 on Renesas RZ/A2M (R7S9210).
 926
 927	config DEBUG_R7S9210_SCIF4
 928		bool "Kernel low-level debugging messages via SCIF4 on R7S9210"
 929		depends on ARCH_R7S9210
 930		help
 931		  Say Y here if you want kernel low-level debugging support
 932		  via SCIF4 on Renesas RZ/A2M (R7S9210).
 933
 934	config DEBUG_RCAR_GEN1_SCIF0
 935		bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
 936		depends on ARCH_R8A7778
 937		help
 938		  Say Y here if you want kernel low-level debugging support
 939		  via SCIF0 on Renesas R-Car M1A (R8A7778).
 940
 941	config DEBUG_RCAR_GEN1_SCIF2
 942		bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
 943		depends on ARCH_R8A7779
 944		help
 945		  Say Y here if you want kernel low-level debugging support
 946		  via SCIF2 on Renesas R-Car H1 (R8A7779).
 947
 948	config DEBUG_RCAR_GEN2_SCIF0
 949		bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
 950		depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \
 951			ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
 952		help
 953		  Say Y here if you want kernel low-level debugging support
 954		  via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744),
 955		  R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or
 956		  M2-N (R8A7793).
 957
 958	config DEBUG_RCAR_GEN2_SCIF1
 959		bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
 960		depends on ARCH_R8A77470
 961		help
 962		  Say Y here if you want kernel low-level debugging support
 963		  via SCIF1 on Renesas RZ/G1C (R8A77470).
 964
 965	config DEBUG_RCAR_GEN2_SCIF2
 966		bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
 967		depends on ARCH_R8A7794
 968		help
 969		  Say Y here if you want kernel low-level debugging support
 970		  via SCIF2 on Renesas R-Car E2 (R8A7794).
 971
 972	config DEBUG_RCAR_GEN2_SCIF4
 973		bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
 974		depends on ARCH_R8A7745
 975		help
 976		  Say Y here if you want kernel low-level debugging support
 977		  via SCIF4 on Renesas RZ/G1E (R8A7745).
 978
 979	config DEBUG_RCAR_GEN2_SCIFA2
 980		bool "Kernel low-level debugging messages via SCIFA2 on R8A7742"
 981		depends on ARCH_R8A7742
 982		help
 983		  Say Y here if you want kernel low-level debugging support
 984		  via SCIFA2 on Renesas RZ/G1H (R8A7742).
 985
 986	config DEBUG_RMOBILE_SCIFA0
 987		bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
 988		depends on ARCH_R8A73A4
 989		help
 990		  Say Y here if you want kernel low-level debugging support
 991		  via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
 992
 993	config DEBUG_RMOBILE_SCIFA1
 994		bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
 995		depends on ARCH_R8A7740
 996		help
 997		  Say Y here if you want kernel low-level debugging support
 998		  via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
 999
1000	config DEBUG_RMOBILE_SCIFA4
1001		bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
1002		depends on ARCH_SH73A0
1003		help
1004		  Say Y here if you want kernel low-level debugging support
1005		  via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
1006
1007	config DEBUG_S3C_UART0
1008		depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1009		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1010		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1011		select DEBUG_S5PV210_UART if ARCH_S5PV210
1012		bool "Use Samsung S3C UART 0 for low-level debug"
1013		help
1014		  Say Y here if you want the debug print routines to direct
1015		  their output to UART 0. The port must have been initialised
1016		  by the boot-loader before use.
1017
1018	config DEBUG_S3C_UART1
1019		depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1020		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1021		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1022		select DEBUG_S5PV210_UART if ARCH_S5PV210
1023		bool "Use Samsung S3C UART 1 for low-level debug"
1024		help
1025		  Say Y here if you want the debug print routines to direct
1026		  their output to UART 1. The port must have been initialised
1027		  by the boot-loader before use.
1028
1029	config DEBUG_S3C_UART2
1030		depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1031		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1032		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1033		select DEBUG_S5PV210_UART if ARCH_S5PV210
1034		bool "Use Samsung S3C UART 2 for low-level debug"
1035		help
1036		  Say Y here if you want the debug print routines to direct
1037		  their output to UART 2. The port must have been initialised
1038		  by the boot-loader before use.
1039
1040	config DEBUG_S3C_UART3
1041		depends on ARCH_EXYNOS || ARCH_S5PV210
1042		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1043		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1044		select DEBUG_S5PV210_UART if ARCH_S5PV210
1045		bool "Use Samsung S3C UART 3 for low-level debug"
1046		help
1047		  Say Y here if you want the debug print routines to direct
1048		  their output to UART 3. The port must have been initialised
1049		  by the boot-loader before use.
1050
1051	config DEBUG_SA1100
1052		depends on ARCH_SA1100
1053		bool "Use SA1100 UARTs for low-level debug"
1054		help
1055		  Say Y here if you want kernel low-level debugging support
1056		  on SA-11x0 UART ports. The kernel will check for the first
1057		  enabled UART in a sequence 3-1-2.
1058
1059	config DEBUG_SD5203_UART
1060		bool "Hisilicon SD5203 Debug UART"
1061		depends on ARCH_SD5203
1062		select DEBUG_UART_8250
1063		help
1064		  Say Y here if you want kernel low-level debugging support
1065		  on SD5203 UART.
1066
1067	config DEBUG_SOCFPGA_UART0
1068		depends on ARCH_INTEL_SOCFPGA
1069		bool "Use SOCFPGA UART0 for low-level debug"
1070		select DEBUG_UART_8250
1071		help
1072		  Say Y here if you want kernel low-level debugging support
1073		  on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1074
1075	config DEBUG_SOCFPGA_ARRIA10_UART1
1076		depends on ARCH_INTEL_SOCFPGA
1077		bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1078		select DEBUG_UART_8250
1079		help
1080		  Say Y here if you want kernel low-level debugging support
1081		  on SOCFPGA(Arria 10) based platforms.
1082
1083	config DEBUG_SOCFPGA_CYCLONE5_UART1
1084		depends on ARCH_INTEL_SOCFPGA
1085		bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1086		select DEBUG_UART_8250
1087		help
1088		  Say Y here if you want kernel low-level debugging support
1089		  on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1090
1091	config DEBUG_SUN9I_UART0
1092		bool "Kernel low-level debugging messages via sun9i UART0"
1093		depends on MACH_SUN9I
1094		select DEBUG_UART_8250
1095		help
1096		  Say Y here if you want kernel low-level debugging support
1097		  on Allwinner A80 based platforms on the UART0.
1098
1099	config DEBUG_SUNXI_UART0
1100		bool "Kernel low-level debugging messages via sunXi UART0"
1101		depends on ARCH_SUNXI
1102		select DEBUG_UART_8250
1103		help
1104		  Say Y here if you want kernel low-level debugging support
1105		  on Allwinner A1X based platforms on the UART0.
1106
1107	config DEBUG_SUNXI_UART1
1108		bool "Kernel low-level debugging messages via sunXi UART1"
1109		depends on ARCH_SUNXI
1110		select DEBUG_UART_8250
1111		help
1112		  Say Y here if you want kernel low-level debugging support
1113		  on Allwinner A1X based platforms on the UART1.
1114
1115	config DEBUG_SUNXI_R_UART
1116		bool "Kernel low-level debugging messages via sunXi R_UART"
1117		depends on MACH_SUN6I || MACH_SUN8I
1118		select DEBUG_UART_8250
1119		help
1120		  Say Y here if you want kernel low-level debugging support
1121		  on Allwinner A31/A23 based platforms on the R_UART.
1122
1123	config DEBUG_SPEAR3XX
1124		bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1125		depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1126		select DEBUG_UART_PL01X
1127		help
1128		  Say Y here if you want kernel low-level debugging support
1129		  on ST SPEAr based platforms.
1130
1131	config DEBUG_SPEAR13XX
1132		bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1133		depends on ARCH_SPEAR13XX
1134		select DEBUG_UART_PL01X
1135		help
1136		  Say Y here if you want kernel low-level debugging support
1137		  on ST SPEAr13xx based platforms.
1138
1139	config DEBUG_STIH41X_ASC2
1140		bool "Use StiH415/416 ASC2 UART for low-level debug"
1141		depends on ARCH_STI
1142		help
1143		  Say Y here if you want kernel low-level debugging support
1144		  on STiH415/416 based platforms like b2000, which has
1145		  default UART wired up to ASC2.
1146
1147		  If unsure, say N.
1148
1149	config DEBUG_STIH41X_SBC_ASC1
1150		bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1151		depends on ARCH_STI
1152		help
1153		  Say Y here if you want kernel low-level debugging support
1154		  on STiH415/416 based platforms like b2020. which has
1155		  default UART wired up to SBC ASC1.
1156
1157		  If unsure, say N.
1158
1159	config DEBUG_STIH418_SBC_ASC0
1160		bool "Use StiH418 SBC ASC0 UART for low-level debug"
1161		depends on ARCH_STI
1162		help
1163		  Say Y here if you want kernel low-level debugging support
1164		  on STiH418 based platforms which has default UART wired
1165		  up to SBC ASC0.
1166
1167		  If unsure, say N.
1168
1169	config STM32F4_DEBUG_UART
1170		bool "Use STM32F4 UART for low-level debug"
1171		depends on MACH_STM32F429 || MACH_STM32F469
1172		select DEBUG_STM32_UART
1173		help
1174		  Say Y here if you want kernel low-level debugging support
1175		  on STM32F4 based platforms, which default UART is wired on
1176		  USART1, but another UART instance can be selected by modifying
1177		  CONFIG_DEBUG_UART_PHYS.
1178
1179		  If unsure, say N.
1180
1181	config STM32F7_DEBUG_UART
1182		bool "Use STM32F7 UART for low-level debug"
1183		depends on MACH_STM32F746 || MACH_STM32F769
1184		select DEBUG_STM32_UART
1185		help
1186		  Say Y here if you want kernel low-level debugging support
1187		  on STM32F7 based platforms, which default UART is wired on
1188		  USART1, but another UART instance can be selected by modifying
1189		  CONFIG_DEBUG_UART_PHYS.
1190
1191		  If unsure, say N.
1192
1193	config STM32H7_DEBUG_UART
1194		bool "Use STM32H7 UART for low-level debug"
1195		depends on MACH_STM32H743
1196		select DEBUG_STM32_UART
1197		help
1198		  Say Y here if you want kernel low-level debugging support
1199		  on STM32H7 based platforms, which default UART is wired on
1200		  USART1, but another UART instance can be selected by modifying
1201		  CONFIG_DEBUG_UART_PHYS.
1202
1203		  If unsure, say N.
1204
1205	config STM32MP1_DEBUG_UART
1206		bool "Use STM32MP1 UART for low-level debug"
1207		depends on MACH_STM32MP157
1208		select DEBUG_STM32_UART
1209		help
1210		  Say Y here if you want kernel low-level debugging support on
1211		  STM32MP1-based platforms, where the default UART is wired to
1212		  UART4, but another UART instance can be selected by modifying
1213		  CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
1214
1215		  If unsure, say N.
1216
1217	config TEGRA_DEBUG_UART_AUTO_ODMDATA
1218		bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1219		depends on ARCH_TEGRA
1220		select DEBUG_TEGRA_UART
1221		help
1222		  Automatically determines which UART to use for low-level
1223		  debug based on the ODMDATA value. This value is part of
1224		  the BCT, and is written to the boot memory device using
1225		  nvflash, or other flashing tool.  When bits 19:18 are 3,
1226		  then bits 17:15 indicate which UART to use; 0/1/2/3/4
1227		  are UART A/B/C/D/E.
1228
1229	config TEGRA_DEBUG_UARTA
1230		bool "Kernel low-level debugging messages via Tegra UART A"
1231		depends on ARCH_TEGRA
1232		select DEBUG_TEGRA_UART
1233		help
1234		  Say Y here if you want kernel low-level debugging support
1235		  on Tegra based platforms.
1236
1237	config TEGRA_DEBUG_UARTB
1238		bool "Kernel low-level debugging messages via Tegra UART B"
1239		depends on ARCH_TEGRA
1240		select DEBUG_TEGRA_UART
1241		help
1242		  Say Y here if you want kernel low-level debugging support
1243		  on Tegra based platforms.
1244
1245	config TEGRA_DEBUG_UARTC
1246		bool "Kernel low-level debugging messages via Tegra UART C"
1247		depends on ARCH_TEGRA
1248		select DEBUG_TEGRA_UART
1249		help
1250		  Say Y here if you want kernel low-level debugging support
1251		  on Tegra based platforms.
1252
1253	config TEGRA_DEBUG_UARTD
1254		bool "Kernel low-level debugging messages via Tegra UART D"
1255		depends on ARCH_TEGRA
1256		select DEBUG_TEGRA_UART
1257		help
1258		  Say Y here if you want kernel low-level debugging support
1259		  on Tegra based platforms.
1260
1261	config TEGRA_DEBUG_UARTE
1262		bool "Kernel low-level debugging messages via Tegra UART E"
1263		depends on ARCH_TEGRA
1264		select DEBUG_TEGRA_UART
1265		help
1266		  Say Y here if you want kernel low-level debugging support
1267		  on Tegra based platforms.
1268
1269	config DEBUG_UX500_UART
1270		depends on ARCH_U8500
1271		bool "Use Ux500 UART for low-level debug"
1272		help
1273		  Say Y here if you want kernel low-level debugging support
1274		  on Ux500 based platforms.
1275
1276	config DEBUG_VERSATILE
1277		bool "Kernel low-level debugging messages via ARM Versatile UART"
1278		depends on ARCH_VERSATILE
1279		select DEBUG_UART_PL01X
1280		help
1281		  Say Y here if you want kernel low-level debugging support
1282		  on ARM Versatile platforms.
1283
1284	config DEBUG_VEXPRESS_UART0_DETECT
1285		bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1286		depends on ARCH_VEXPRESS && CPU_CP15_MMU
1287		help
1288		  This option enables a simple heuristic which tries to determine
1289		  the motherboard's memory map variant (original or RS1) and then
1290		  choose the relevant UART0 base address.
1291
1292		  Note that this will only work with standard A-class core tiles,
1293		  and may fail with non-standard SMM or custom software models.
1294
1295	config DEBUG_VEXPRESS_UART0_CA9
1296		bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1297		depends on ARCH_VEXPRESS
1298		select DEBUG_UART_PL01X
1299		help
1300		  This option selects UART0 at 0x10009000. Except for custom models,
1301		  this applies only to the V2P-CA9 tile.
1302
1303	config DEBUG_VEXPRESS_UART0_RS1
1304		bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1305		depends on ARCH_VEXPRESS
1306		select DEBUG_UART_PL01X
1307		help
1308		  This option selects UART0 at 0x1c090000. This applies to most
1309		  of the tiles using the RS1 memory map, including all new A-class
1310		  core tiles, FPGA-based SMMs and software models.
1311
1312	config DEBUG_VEXPRESS_UART0_CRX
1313		bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1314		depends on ARCH_VEXPRESS && !MMU
1315		select DEBUG_UART_PL01X
1316		help
1317		  This option selects UART0 at 0xb0090000. This is appropriate for
1318		  Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1319
1320	config DEBUG_VF_UART
1321		bool "Vybrid UART"
1322		depends on SOC_VF610
1323		help
1324		  Say Y here if you want kernel low-level debugging support
1325		  on Vybrid based platforms.
1326
1327	config DEBUG_VT8500_UART0
1328		bool "Use UART0 on VIA/Wondermedia SoCs"
1329		depends on ARCH_VT8500
1330		help
1331		  This option selects UART0 on VIA/Wondermedia System-on-a-chip
1332		  devices, including VT8500, WM8505, WM8650 and WM8850.
1333
1334	config DEBUG_ZYNQ_UART0
1335		bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1336		depends on ARCH_ZYNQ
1337		help
1338		  Say Y here if you want the debug print routines to direct
1339		  their output to UART0 on the Zynq platform.
1340
1341	config DEBUG_ZYNQ_UART1
1342		bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1343		depends on ARCH_ZYNQ
1344		help
1345		  Say Y here if you want the debug print routines to direct
1346		  their output to UART1 on the Zynq platform.
1347
1348		  If you have a ZC702 board and want early boot messages to
1349		  appear on the USB serial adaptor, select this option.
1350
1351	config DEBUG_ICEDCC
1352		bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1353		help
1354		  Say Y here if you want the debug print routines to direct
1355		  their output to the EmbeddedICE macrocell's DCC channel using
1356		  co-processor 14. This is known to work on the ARM9 style ICE
1357		  channel and on the XScale with the PEEDI.
1358
1359		  Note that the system will appear to hang during boot if there
1360		  is nothing connected to read from the DCC.
1361
1362	config DEBUG_SEMIHOSTING
1363		bool "Kernel low-level debug output via semihosting I/O"
1364		help
1365		  Semihosting enables code running on an ARM target to use
1366		  the I/O facilities on a host debugger/emulator through a
1367		  simple SVC call. The host debugger or emulator must have
1368		  semihosting enabled for the special svc call to be trapped
1369		  otherwise the kernel will crash.
1370
1371		  This is known to work with OpenOCD, as well as
1372		  ARM's Fast Models, or any other controlling environment
1373		  that implements semihosting.
1374
1375		  For more details about semihosting, please see
1376		  chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1377
1378	config DEBUG_LL_UART_8250
1379		bool "Kernel low-level debugging via 8250 UART"
1380		help
1381		  Say Y here if you wish the debug print routes to direct
1382		  their output to an 8250 UART.  You can use this option
1383		  to provide the parameters for the 8250 UART rather than
1384		  selecting one of the platform specific options above if
1385		  you know the parameters for the port.
1386
1387		  This option is preferred over the platform specific
1388		  options; the platform specific options are deprecated
1389		  and will be soon removed.
1390
1391	config DEBUG_LL_UART_PL01X
1392		bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1393		help
1394		  Say Y here if you wish the debug print routes to direct
1395		  their output to a PL01x Primecell UART.  You can use
1396		  this option to provide the parameters for the UART
1397		  rather than selecting one of the platform specific
1398		  options above if you know the parameters for the port.
1399
1400		  This option is preferred over the platform specific
1401		  options; the platform specific options are deprecated
1402		  and will be soon removed.
1403
1404endchoice
1405
1406config DEBUG_AT91_UART
1407	bool
1408	depends on ARCH_AT91
1409
1410config DEBUG_EXYNOS_UART
1411	bool
1412
1413config DEBUG_S3C64XX_UART
1414	bool
1415
1416config DEBUG_S5PV210_UART
1417	bool
1418
1419config DEBUG_S3C_UART
1420	depends on DEBUG_S3C64XX_UART ||  DEBUG_S5PV210_UART || \
1421		   DEBUG_EXYNOS_UART
1422	int
1423	default "0" if DEBUG_S3C_UART0
1424	default "1" if DEBUG_S3C_UART1
1425	default "2" if DEBUG_S3C_UART2
1426	default "3" if DEBUG_S3C_UART3
1427
1428config DEBUG_OMAP2PLUS_UART
1429	bool
1430	depends on ARCH_OMAP2PLUS
1431
1432config DEBUG_IMX_UART_PORT
1433	int "i.MX Debug UART Port Selection"
1434	depends on DEBUG_IMX1_UART || \
1435		   DEBUG_IMX25_UART || \
1436		   DEBUG_IMX27_UART || \
1437		   DEBUG_IMX31_UART || \
1438		   DEBUG_IMX35_UART || \
1439		   DEBUG_IMX50_UART || \
1440		   DEBUG_IMX51_UART || \
1441		   DEBUG_IMX53_UART || \
1442		   DEBUG_IMX6Q_UART || \
1443		   DEBUG_IMX6SL_UART || \
1444		   DEBUG_IMX6SX_UART || \
1445		   DEBUG_IMX6UL_UART || \
1446		   DEBUG_IMX7D_UART
1447	default 1
1448	help
1449	  Choose UART port on which kernel low-level debug messages
1450	  should be output.
1451
1452config DEBUG_VF_UART_PORT
1453	int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1454	default 1
1455	range 0 3
1456	depends on SOC_VF610
1457	help
1458	  Choose UART port on which kernel low-level debug messages
1459	  should be output.
1460
1461config DEBUG_TEGRA_UART
1462	bool
1463	depends on ARCH_TEGRA
1464
1465config DEBUG_STM32_UART
1466	bool
1467	depends on ARCH_STM32
1468
1469config DEBUG_UART_FLOW_CONTROL
1470	bool "Enable flow control (CTS) for the debug UART"
1471	depends on DEBUG_LL
1472	default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1473	help
1474	  Some UART ports are connected to terminals that will use modem
1475	  control signals to indicate whether they are ready to receive text.
1476	  In practice this means that the terminal is asserting the special
1477	  control signal CTS (Clear To Send). If your debug UART supports
1478	  this and your debug terminal will require it, enable this option.
1479
1480config DEBUG_LL_INCLUDE
1481	string
1482	default "debug/sa1100.S" if DEBUG_SA1100
1483	default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1484	default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1485	default "debug/at91.S" if DEBUG_AT91_UART
1486	default "debug/asm9260.S" if DEBUG_ASM9260_UART
1487	default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1488	default "debug/dc21285.S" if DEBUG_DC21285_PORT
1489	default "debug/meson.S" if DEBUG_MESON_UARTAO
1490	default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1491	default "debug/exynos.S" if DEBUG_EXYNOS_UART
1492	default "debug/icedcc.S" if DEBUG_ICEDCC
1493	default "debug/imx.S" if DEBUG_IMX1_UART || \
1494				 DEBUG_IMX25_UART || \
1495				 DEBUG_IMX27_UART || \
1496				 DEBUG_IMX31_UART || \
1497				 DEBUG_IMX35_UART || \
1498				 DEBUG_IMX50_UART || \
1499				 DEBUG_IMX51_UART || \
1500				 DEBUG_IMX53_UART || \
1501				 DEBUG_IMX6Q_UART || \
1502				 DEBUG_IMX6SL_UART || \
1503				 DEBUG_IMX6SX_UART || \
1504				 DEBUG_IMX6UL_UART || \
1505				 DEBUG_IMX7D_UART
1506	default "debug/msm.S" if DEBUG_QCOM_UARTDM
1507	default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1508	default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1509	default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
1510	default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
1511	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1512	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1513	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1514	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1515	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1516	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1517	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2
1518	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1519	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1520	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1521	default "debug/s3c24xx.S" if DEBUG_S3C64XX_UART
1522	default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1523	default "debug/sti.S" if DEBUG_STIH41X_ASC2
1524	default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1
1525	default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0
1526	default "debug/stm32.S" if DEBUG_STM32_UART
1527	default "debug/tegra.S" if DEBUG_TEGRA_UART
1528	default "debug/ux500.S" if DEBUG_UX500_UART
1529	default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1530	default "debug/vf.S" if DEBUG_VF_UART
1531	default "debug/vt8500.S" if DEBUG_VT8500_UART0
1532	default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1533	default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART || DEBUG_BCMBCA
1534	default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1535	default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1536	default "mach/debug-macro.S"
1537
1538# Compatibility options for PL01x
1539config DEBUG_UART_PL01X
1540	bool
1541
1542# Compatibility options for 8250
1543config DEBUG_UART_8250
1544	def_bool ARCH_IXP4XX || ARCH_RPC
1545
1546config DEBUG_UART_PHYS
1547	hex "Physical base address of debug UART"
1548	default 0x01c28000 if DEBUG_SUNXI_UART0
1549	default 0x01c28400 if DEBUG_SUNXI_UART1
1550	default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1551	default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1552	default 0x01f02800 if DEBUG_SUNXI_R_UART
1553	default 0x02530c00 if DEBUG_KEYSTONE_UART0
1554	default 0x02531000 if DEBUG_KEYSTONE_UART1
1555	default 0x03010fe0 if ARCH_RPC
1556	default 0x07000000 if DEBUG_SUN9I_UART0
1557	default 0x09530000 if DEBUG_STIH418_SBC_ASC0
1558	default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1559				DEBUG_VEXPRESS_UART0_CA9
1560	default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1561	default 0x10124000 if DEBUG_RK3X_UART0
1562	default 0x10126000 if DEBUG_RK3X_UART1
1563	default 0x101f1000 if DEBUG_VERSATILE
1564	default 0x101fb000 if DEBUG_NOMADIK_UART
1565	default 0x10210000 if DEBUG_RV1108_UART2
1566	default 0x10220000 if DEBUG_RV1108_UART1
1567	default 0x10230000 if DEBUG_RV1108_UART0
1568	default 0x11002000 if DEBUG_MT8127_UART0
1569	default 0x11006000 if DEBUG_MT6589_UART0
1570	default 0x11009000 if DEBUG_MT8135_UART3
1571	default 0x16000000 if DEBUG_INTEGRATOR
1572	default 0x1600d000 if DEBUG_SD5203_UART
1573	default 0x18000300 if DEBUG_BCM_5301X
1574	default 0x18000400 if DEBUG_BCM_HR2
1575	default 0x18023000 if DEBUG_BCM_IPROC_UART3
1576	default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1577	default 0x1f221000 if DEBUG_MSTARV7_PMUART
1578	default 0x20001000 if DEBUG_HIP01_UART
1579	default 0x20060000 if DEBUG_RK29_UART0
1580	default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1581	default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1582	default 0x20201000 if DEBUG_BCM2835
1583	default 0x3e000000 if DEBUG_BCM_KONA_UART
1584	default 0x3f201000 if DEBUG_BCM2836
1585	default 0x40010000 if STM32MP1_DEBUG_UART
1586	default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
1587				STM32H7_DEBUG_UART
1588	default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1589	default 0x40081000 if DEBUG_LPC18XX_UART0
1590	default 0x40090000 if DEBUG_LPC32XX
1591	default 0x40100000 if DEBUG_PXA_UART1
1592	default 0x42000000 if DEBUG_GEMINI
1593	default 0x44e09000 if DEBUG_AM33XXUART1
1594	default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1595	default 0x48022000 if DEBUG_TI81XXUART2
1596	default 0x48024000 if DEBUG_TI81XXUART3
1597	default 0x4806a000 if DEBUG_OMAP2UART1
1598	default 0x4806c000 if DEBUG_OMAP2UART2
1599	default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1600	default 0x49020000 if DEBUG_OMAP3UART3
1601	default 0x49042000 if DEBUG_OMAP3UART4
1602	default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1603	default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1604	default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1605	default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1606	default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1607	default 0x80010000 if DEBUG_ASM9260_UART
1608	default 0x80070000 if DEBUG_IMX23_UART
1609	default 0x80074000 if DEBUG_IMX28_UART
1610	default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1611	default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1612	default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1613	default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1614	default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1615	default 0xd0000000 if DEBUG_SPEAR3XX
1616	default 0xd0012000 if DEBUG_MVEBU_UART0
1617	default 0xc81004c0 if DEBUG_MESON_UARTAO
1618	default 0xd4017000 if DEBUG_MMP_UART2
1619	default 0xd4018000 if DEBUG_MMP_UART3
1620	default 0xe0000000 if DEBUG_SPEAR13XX
1621	default 0xe0064200 if DEBUG_AT91_LAN966_FLEXCOM
1622	default 0xe1824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3
1623	default 0xe4007000 if DEBUG_HIP04_UART
1624	default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1625	default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1626	default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2
1627	default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1628	default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1629	default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1630	default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1631	default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1632	default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
1633	default 0xe8009000 if DEBUG_R7S9210_SCIF4
1634	default 0xf0000000 if DEBUG_DIGICOLOR_UA0
1635	default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1636	default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1637	default 0xf7fc9000 if DEBUG_BERLIN_UART
1638	default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1639	default 0xf8b00000 if DEBUG_HIX5HD2_UART
1640	default 0xf991e000 if DEBUG_QCOM_UARTDM
1641	default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1642	default 0xfcb00000 if DEBUG_HI3620_UART
1643	default 0xfd883000 if DEBUG_ALPINE_UART0
1644	default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1
1645	default 0xfed32000 if DEBUG_STIH41X_ASC2
1646	default 0xff690000 if DEBUG_RK32_UART2
1647	default 0xff800640 if DEBUG_BCMBCA
1648	default 0xffc02000 if DEBUG_SOCFPGA_UART0
1649	default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1650	default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1651	default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1652	default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1653	default 0xfff36000 if DEBUG_HIGHBANK_UART
1654	default 0xfffb0000 if DEBUG_OMAP1UART1
1655	default 0xfffb0800 if DEBUG_OMAP1UART2
1656	default 0xfffb9800 if DEBUG_OMAP1UART3
1657	default 0xfffe8600 if DEBUG_BCM63XX_UART
1658	default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1659	default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1660	depends on ARCH_EP93XX || \
1661	        DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1662		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1663		DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1664		DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
1665		DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1666		DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1667		DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1668		DEBUG_RCAR_GEN2_SCIFA2 || \
1669		DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1670		DEBUG_RMOBILE_SCIFA4 || \
1671		DEBUG_S3C64XX_UART || \
1672		DEBUG_BCM63XX_UART || DEBUG_BCMBCA || DEBUG_ASM9260_UART || \
1673		DEBUG_DIGICOLOR_UA0 || \
1674		DEBUG_AT91_UART || DEBUG_STM32_UART || \
1675		DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1676		DEBUG_STIH418_SBC_ASC0
1677
1678config DEBUG_UART_VIRT
1679	hex "Virtual base address of debug UART"
1680	default 0xc881f000 if DEBUG_RV1108_UART2
1681	default 0xc8821000 if DEBUG_RV1108_UART1
1682	default 0xc8912000 if DEBUG_RV1108_UART0
1683	default 0xe0010fe0 if ARCH_RPC
1684	default 0xe0824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3
1685	default 0xf0010000 if DEBUG_ASM9260_UART
1686	default 0xf0100000 if DEBUG_DIGICOLOR_UA0
1687	default 0xf01fb000 if DEBUG_NOMADIK_UART
1688	default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1689	default 0xf0221000 if DEBUG_MSTARV7_PMUART
1690	default 0xf1000300 if DEBUG_BCM_5301X
1691	default 0xf1000400 if DEBUG_BCM_HR2
1692	default 0xf1002000 if DEBUG_MT8127_UART0
1693	default 0xf1006000 if DEBUG_MT6589_UART0
1694	default 0xf1009000 if DEBUG_MT8135_UART3
1695	default 0xf1023000 if DEBUG_BCM_IPROC_UART3
1696	default 0xf11f1000 if DEBUG_VERSATILE
1697	default 0xf1600000 if DEBUG_INTEGRATOR
1698	default 0xf1c28000 if DEBUG_SUNXI_UART0
1699	default 0xf1c28400 if DEBUG_SUNXI_UART1
1700	default 0xf1f02800 if DEBUG_SUNXI_R_UART
1701	default 0xf31004c0 if DEBUG_MESON_UARTAO
1702	default 0xf4090000 if DEBUG_LPC32XX
1703	default 0xf4200000 if DEBUG_GEMINI
1704	default 0xf6200000 if DEBUG_PXA_UART1
1705	default 0xf7000000 if DEBUG_SUN9I_UART0
1706	default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1707	default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1708	default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1709	default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1710	default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1711	default 0xf7fc9000 if DEBUG_BERLIN_UART
1712	default 0xf8007000 if DEBUG_HIP04_UART
1713	default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1714	default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1715	default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1716	default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1717	default 0xf9530000 if DEBUG_STIH418_SBC_ASC0
1718	default 0xf9e09000 if DEBUG_AM33XXUART1
1719	default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1720	default 0xfa022000 if DEBUG_TI81XXUART2
1721	default 0xfa024000 if DEBUG_TI81XXUART3
1722	default 0xfa06a000 if DEBUG_OMAP2UART1
1723	default 0xfa06c000 if DEBUG_OMAP2UART2
1724	default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1725	default 0xfa71e000 if DEBUG_QCOM_UARTDM
1726	default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1727	default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1728	default 0xfb020000 if DEBUG_OMAP3UART3
1729	default 0xfb042000 if DEBUG_OMAP3UART4
1730	default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1731	default 0xfcfe8600 if DEBUG_BCM63XX_UART
1732	default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1733	default 0xfd064200 if DEBUG_AT91_LAN966_FLEXCOM
1734	default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1
1735	default 0xfd883000 if DEBUG_ALPINE_UART0
1736	default 0xfdd32000 if DEBUG_STIH41X_ASC2
1737	default 0xfe010000 if STM32MP1_DEBUG_UART
1738	default 0xfe017000 if DEBUG_MMP_UART2
1739	default 0xfe018000 if DEBUG_MMP_UART3
1740	default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1741	default 0xfe300000 if DEBUG_BCM_KONA_UART
1742	default 0xfe300640 if DEBUG_BCMBCA
1743	default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1744	default 0xfeb24000 if DEBUG_RK3X_UART0
1745	default 0xfeb26000 if DEBUG_RK3X_UART1
1746	default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1747	default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1748	default 0xfec02000 if DEBUG_SOCFPGA_UART0
1749	default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1750	default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1751	default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1752	default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1753	default 0xfec90000 if DEBUG_RK32_UART2
1754	default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1755	default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART
1756	default 0xfed60000 if DEBUG_RK29_UART0
1757	default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1758	default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1759	default 0xfedc0000 if DEBUG_EP93XX
1760	default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1761	default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1762	default 0xfec00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1763	default 0xfec00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1764	default 0xfef36000 if DEBUG_HIGHBANK_UART
1765	default 0xff0b0000 if DEBUG_OMAP1UART1
1766	default 0xff0b0800 if DEBUG_OMAP1UART2
1767	default 0xff0b9800 if DEBUG_OMAP1UART3
1768	default 0xffd01000 if DEBUG_HIP01_UART
1769	default DEBUG_UART_PHYS if !MMU
1770	depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1771		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1772		DEBUG_QCOM_UARTDM || \
1773		DEBUG_S3C64XX_UART || \
1774		DEBUG_BCM63XX_UART || DEBUG_BCMBCA || DEBUG_ASM9260_UART || \
1775		DEBUG_DIGICOLOR_UA0 || \
1776		DEBUG_AT91_UART || DEBUG_STM32_UART || \
1777		DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1778		DEBUG_STIH418_SBC_ASC0
1779
1780config DEBUG_UART_8250_SHIFT
1781	int "Register offset shift for the 8250 debug UART"
1782	depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1783	default 0 if DEBUG_FOOTBRIDGE_COM1 || DEBUG_BCM_5301X || \
1784		DEBUG_BCM_HR2
1785	default 3 if DEBUG_MSTARV7_PMUART
1786	default 2
1787
1788config DEBUG_UART_8250_WORD
1789	bool "Use 32-bit accesses for 8250 UART"
1790	depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1791	depends on DEBUG_UART_8250_SHIFT >= 2
1792	default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
1793		DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
1794		DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
1795		DEBUG_DAVINCI_DA8XX_UART1 || DEBUG_DAVINCI_DA8XX_UART2 || \
1796		DEBUG_BCM_IPROC_UART3 || DEBUG_BCM_KONA_UART || \
1797		DEBUG_RK32_UART2
1798
1799config DEBUG_UART_8250_PALMCHIP
1800	bool "8250 UART is Palmchip BK-310x"
1801	depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1802	help
1803	  Palmchip provides a UART implementation compatible with 16550
1804	  except for having a different register layout.  Say Y here if
1805	  the debug UART is of this type.
1806
1807config DEBUG_UNCOMPRESS
1808	bool "Enable decompressor debugging via DEBUG_LL output"
1809	depends on !ARCH_MULTIPLATFORM
1810	depends on !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
1811	depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1812		     (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1813		     !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING
1814	help
1815	  Say Y here to enable debug output in the decompressor code, using
1816	  the selected DEBUG_LL output method.
1817
1818config UNCOMPRESS_INCLUDE
1819	string
1820	default "mach/uncompress.h" if ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100
1821	default "debug/uncompress.h"
1822
1823config EARLY_PRINTK
1824	bool "Early printk"
1825	depends on DEBUG_LL
1826	help
1827	  Say Y here if you want to have an early console using the
1828	  kernel low-level debugging functions. Add earlyprintk to your
1829	  kernel parameters to enable this console.
1830
1831config ARM_KPROBES_TEST
1832	tristate "Kprobes test module"
1833	depends on KPROBES && MODULES
1834	help
1835	  Perform tests of kprobes API and instruction set simulation.
1836
1837config PID_IN_CONTEXTIDR
1838	bool "Write the current PID to the CONTEXTIDR register"
1839	depends on CPU_COPY_V6
1840	help
1841	  Enabling this option causes the kernel to write the current PID to
1842	  the PROCID field of the CONTEXTIDR register, at the expense of some
1843	  additional instructions during context switch. Say Y here only if you
1844	  are planning to use hardware trace tools with this kernel.
1845
1846source "drivers/hwtracing/coresight/Kconfig"