1menu "Kernel hacking"
  2
  3source "lib/Kconfig.debug"
 
  4
  5config STRICT_DEVMEM
  6	bool "Filter access to /dev/mem"
 
  7	depends on MMU
  8	---help---
  9	  If this option is disabled, you allow userspace (root) access to all
 10	  of memory, including kernel and userspace memory. Accidental
 11	  access to this is obviously disastrous, but specific access can
 12	  be used by people debugging the kernel.
 13
 14	  If this option is switched on, the /dev/mem file only allows
 15	  userspace access to memory mapped peripherals.
 16
 17          If in doubt, say Y.
 18
 19# RMK wants arm kernels compiled with frame pointers or stack unwinding.
 20# If you know what you are doing and are willing to live without stack
 21# traces, you can get a slightly smaller kernel by setting this option to
 22# n, but then RMK will have to kill you ;).
 23config FRAME_POINTER
 24	bool
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 25	depends on !THUMB2_KERNEL
 26	default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
 
 27	help
 28	  If you say N here, the resulting kernel will be slightly smaller and
 29	  faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
 30	  when a problem occurs with the kernel, the information that is
 31	  reported is severely limited.
 32
 33config ARM_UNWIND
 34	bool "Enable stack unwinding support (EXPERIMENTAL)"
 35	depends on AEABI && EXPERIMENTAL
 36	default y
 
 
 37	help
 38	  This option enables stack unwinding support in the kernel
 39	  using the information automatically generated by the
 40	  compiler. The resulting kernel image is slightly bigger but
 41	  the performance is not affected. Currently, this feature
 42	  only works with EABI compilers. If unsure say Y.
 
 
 
 
 
 43
 44config OLD_MCOUNT
 45	bool
 46	depends on FUNCTION_TRACER && FRAME_POINTER
 47	default y
 48
 49config DEBUG_USER
 50	bool "Verbose user fault messages"
 51	help
 52	  When a user program crashes due to an exception, the kernel can
 53	  print a brief message explaining what the problem was. This is
 54	  sometimes helpful for debugging but serves no purpose on a
 55	  production system. Most people should say N here.
 56
 57	  In addition, you need to pass user_debug=N on the kernel command
 58	  line to enable this feature.  N consists of the sum of:
 59
 60	      1 - undefined instruction events
 61	      2 - system calls
 62	      4 - invalid data aborts
 63	      8 - SIGSEGV faults
 64	     16 - SIGBUS faults
 65
 66# These options are only for real kernel hackers who want to get their hands dirty.
 67config DEBUG_LL
 68	bool "Kernel low-level debugging functions (read help!)"
 69	depends on DEBUG_KERNEL
 70	help
 71	  Say Y here to include definitions of printascii, printch, printhex
 72	  in the kernel.  This is helpful if you are debugging code that
 73	  executes before the console is initialized.
 74
 75	  Note that selecting this option will limit the kernel to a single
 76	  UART definition, as specified below. Attempting to boot the kernel
 77	  image on a different platform *will not work*, so this option should
 78	  not be enabled for kernels that are intended to be portable.
 79
 80choice
 81	prompt "Kernel low-level debugging port"
 82	depends on DEBUG_LL
 83
 84	config AT91_DEBUG_LL_DBGU0
 85		bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
 86		depends on HAVE_AT91_DBGU0
 87
 88	config AT91_DEBUG_LL_DBGU1
 89		bool "Kernel low-level debugging on 9263 and 9g45"
 90		depends on HAVE_AT91_DBGU1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 91
 92	config DEBUG_CLPS711X_UART1
 93		bool "Kernel low-level debugging messages via UART1"
 94		depends on ARCH_CLPS711X
 95		help
 96		  Say Y here if you want the debug print routines to direct
 97		  their output to the first serial port on these devices.
 98
 99	config DEBUG_CLPS711X_UART2
100		bool "Kernel low-level debugging messages via UART2"
101		depends on ARCH_CLPS711X
102		help
103		  Say Y here if you want the debug print routines to direct
104		  their output to the second serial port on these devices.
105
 
 
 
 
 
 
 
 
106	config DEBUG_DAVINCI_DA8XX_UART1
107		bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
108		depends on ARCH_DAVINCI_DA8XX
 
109		help
110		  Say Y here if you want the debug print routines to direct
111		  their output to UART1 serial port on DaVinci DA8XX devices.
112
113	config DEBUG_DAVINCI_DA8XX_UART2
114		bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
115		depends on ARCH_DAVINCI_DA8XX
 
116		help
117		  Say Y here if you want the debug print routines to direct
118		  their output to UART2 serial port on DaVinci DA8XX devices.
119
120	config DEBUG_DAVINCI_DMx_UART0
121		bool "Kernel low-level debugging on DaVinci DMx using UART0"
122		depends on ARCH_DAVINCI_DMx
 
123		help
124		  Say Y here if you want the debug print routines to direct
125		  their output to UART0 serial port on DaVinci DMx devices.
126
127	config DEBUG_DAVINCI_TNETV107X_UART1
128		bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
129		depends on ARCH_DAVINCI_TNETV107X
130		help
131		  Say Y here if you want the debug print routines to direct
132		  their output to UART1 serial port on DaVinci TNETV107X
133		  devices.
134
135	config DEBUG_DC21285_PORT
136		bool "Kernel low-level debugging messages via footbridge serial port"
137		depends on FOOTBRIDGE
138		help
139		  Say Y here if you want the debug print routines to direct
140		  their output to the serial port in the DC21285 (Footbridge).
141
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
142	config DEBUG_FOOTBRIDGE_COM1
143		bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
144		depends on FOOTBRIDGE
 
145		help
146		  Say Y here if you want the debug print routines to direct
147		  their output to the 8250 at PCI COM1.
148
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
149	config DEBUG_HIGHBANK_UART
150		bool "Kernel low-level debugging messages via Highbank UART"
151		depends on ARCH_HIGHBANK
 
152		help
153		  Say Y here if you want the debug print routines to direct
154		  their output to the UART on Highbank based devices.
155
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
156	config DEBUG_IMX1_UART
157		bool "i.MX1 Debug UART"
158		depends on SOC_IMX1
159		help
160		  Say Y here if you want kernel low-level debugging support
161		  on i.MX1.
162
163	config DEBUG_IMX23_UART
164		bool "i.MX23 Debug UART"
165		depends on SOC_IMX23
 
166		help
167		  Say Y here if you want kernel low-level debugging support
168		  on i.MX23.
169
170	config DEBUG_IMX25_UART
171		bool "i.MX25 Debug UART"
172		depends on SOC_IMX25
173		help
174		  Say Y here if you want kernel low-level debugging support
175		  on i.MX25.
176
177	config DEBUG_IMX21_IMX27_UART
178		bool "i.MX21 and i.MX27 Debug UART"
179		depends on SOC_IMX21 || SOC_IMX27
180		help
181		  Say Y here if you want kernel low-level debugging support
182		  on i.MX21 or i.MX27.
183
184	config DEBUG_IMX28_UART
185		bool "i.MX28 Debug UART"
186		depends on SOC_IMX28
 
187		help
188		  Say Y here if you want kernel low-level debugging support
189		  on i.MX28.
190
191	config DEBUG_IMX31_IMX35_UART
192		bool "i.MX31 and i.MX35 Debug UART"
193		depends on SOC_IMX31 || SOC_IMX35
194		help
195		  Say Y here if you want kernel low-level debugging support
196		  on i.MX31 or i.MX35.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
197
198	config DEBUG_IMX51_UART
199		bool "i.MX51 Debug UART"
200		depends on SOC_IMX51
201		help
202		  Say Y here if you want kernel low-level debugging support
203		  on i.MX51.
204
205	config DEBUG_IMX50_IMX53_UART
206		bool "i.MX50 and i.MX53 Debug UART"
207		depends on SOC_IMX50 || SOC_IMX53
208		help
209		  Say Y here if you want kernel low-level debugging support
210		  on i.MX50 or i.MX53.
211
212	config DEBUG_IMX6Q_UART2
213		bool "i.MX6Q Debug UART2"
214		depends on SOC_IMX6Q
215		help
216		  Say Y here if you want kernel low-level debugging support
217		  on i.MX6Q UART2. This is correct for e.g. the SabreLite
218                  board.
219
220	config DEBUG_IMX6Q_UART4
221		bool "i.MX6Q Debug UART4"
222		depends on SOC_IMX6Q
223		help
224		  Say Y here if you want kernel low-level debugging support
225		  on i.MX6Q UART4.
226
227	config DEBUG_MSM_UART1
228		bool "Kernel low-level debugging messages via MSM UART1"
229		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
230		help
231		  Say Y here if you want the debug print routines to direct
232		  their output to the first serial port on MSM devices.
233
234	config DEBUG_MSM_UART2
235		bool "Kernel low-level debugging messages via MSM UART2"
236		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
237		help
238		  Say Y here if you want the debug print routines to direct
239		  their output to the second serial port on MSM devices.
240
241	config DEBUG_MSM_UART3
242		bool "Kernel low-level debugging messages via MSM UART3"
243		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
244		help
245		  Say Y here if you want the debug print routines to direct
246		  their output to the third serial port on MSM devices.
247
248	config DEBUG_MSM8660_UART
249		bool "Kernel low-level debugging messages via MSM 8660 UART"
250		depends on ARCH_MSM8X60
251		select MSM_HAS_DEBUG_UART_HS
252		help
253		  Say Y here if you want the debug print routines to direct
254		  their output to the serial port on MSM 8660 devices.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
255
256	config DEBUG_MSM8960_UART
257		bool "Kernel low-level debugging messages via MSM 8960 UART"
258		depends on ARCH_MSM8960
259		select MSM_HAS_DEBUG_UART_HS
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
260		help
261		  Say Y here if you want the debug print routines to direct
262		  their output to the serial port on MSM 8960 devices.
 
 
 
 
 
 
 
 
 
 
 
263
264	config DEBUG_REALVIEW_STD_PORT
265		bool "RealView Default UART"
266		depends on ARCH_REALVIEW
 
267		help
268		  Say Y here if you want the debug print routines to direct
269		  their output to the serial port on RealView EB, PB11MP, PBA8
270		  and PBX platforms.
271
272	config DEBUG_REALVIEW_PB1176_PORT
273		bool "RealView PB1176 UART"
274		depends on MACH_REALVIEW_PB1176
 
275		help
276		  Say Y here if you want the debug print routines to direct
277		  their output to the standard serial port on the RealView
278		  PB1176 platform.
279
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
280	config DEBUG_S3C_UART0
281		depends on PLAT_SAMSUNG
282		bool "Use S3C UART 0 for low-level debug"
 
 
 
 
283		help
284		  Say Y here if you want the debug print routines to direct
285		  their output to UART 0. The port must have been initialised
286		  by the boot-loader before use.
287
288		  The uncompressor code port configuration is now handled
289		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
290
291	config DEBUG_S3C_UART1
292		depends on PLAT_SAMSUNG
293		bool "Use S3C UART 1 for low-level debug"
 
 
 
 
294		help
295		  Say Y here if you want the debug print routines to direct
296		  their output to UART 1. The port must have been initialised
297		  by the boot-loader before use.
298
299		  The uncompressor code port configuration is now handled
300		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
301
302	config DEBUG_S3C_UART2
303		depends on PLAT_SAMSUNG
304		bool "Use S3C UART 2 for low-level debug"
 
 
 
 
305		help
306		  Say Y here if you want the debug print routines to direct
307		  their output to UART 2. The port must have been initialised
308		  by the boot-loader before use.
309
310		  The uncompressor code port configuration is now handled
311		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
312
313	config DEBUG_LL_UART_NONE
314		bool "No low-level debugging UART"
 
315		help
316		  Say Y here if your platform doesn't provide a UART option
317		  below. This relies on your platform choosing the right UART
318		  definition internally in order for low-level debugging to
319		  work.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
320
321	config DEBUG_ICEDCC
322		bool "Kernel low-level debugging via EmbeddedICE DCC channel"
323		help
324		  Say Y here if you want the debug print routines to direct
325		  their output to the EmbeddedICE macrocell's DCC channel using
326		  co-processor 14. This is known to work on the ARM9 style ICE
327		  channel and on the XScale with the PEEDI.
328
329		  Note that the system will appear to hang during boot if there
330		  is nothing connected to read from the DCC.
331
332	config DEBUG_SEMIHOSTING
333		bool "Kernel low-level debug output via semihosting I"
334		help
335		  Semihosting enables code running on an ARM target to use
336		  the I/O facilities on a host debugger/emulator through a
337		  simple SVC calls. The host debugger or emulator must have
338		  semihosting enabled for the special svc call to be trapped
339		  otherwise the kernel will crash.
340
341		  This is known to work with OpenOCD, as wellas
342		  ARM's Fast Models, or any other controlling environment
343		  that implements semihosting.
344
345		  For more details about semihosting, please see
346		  chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
347
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
348endchoice
349
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
350config EARLY_PRINTK
351	bool "Early printk"
352	depends on DEBUG_LL
353	help
354	  Say Y here if you want to have an early console using the
355	  kernel low-level debugging functions. Add earlyprintk to your
356	  kernel parameters to enable this console.
357
358config OC_ETM
359	bool "On-chip ETM and ETB"
360	depends on ARM_AMBA
361	help
362	  Enables the on-chip embedded trace macrocell and embedded trace
363	  buffer driver that will allow you to collect traces of the
364	  kernel code.
365
366config ARM_KPROBES_TEST
367	tristate "Kprobes test module"
368	depends on KPROBES && MODULES
369	help
370	  Perform tests of kprobes API and instruction set simulation.
371
372endmenu
 
 
 
 
 
 
 
 
 

   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	# https://github.com/ClangBuiltLinux/linux/issues/732
  70	depends on !LD_IS_LLD || LLD_VERSION >= 110000
  71	select ARM_UNWIND
  72	help
  73	  This option enables stack unwinding support in the kernel
  74	  using the information automatically generated by the
  75	  compiler. The resulting kernel image is slightly bigger but
  76	  the performance is not affected. Currently, this feature
  77	  only works with EABI compilers.
  78
  79endchoice
  80
  81config ARM_UNWIND
  82	bool
  83
  84config FRAME_POINTER
  85	bool
 
 
  86
  87config DEBUG_USER
  88	bool "Verbose user fault messages"
  89	help
  90	  When a user program crashes due to an exception, the kernel can
  91	  print a brief message explaining what the problem was. This is
  92	  sometimes helpful for debugging but serves no purpose on a
  93	  production system. Most people should say N here.
  94
  95	  In addition, you need to pass user_debug=N on the kernel command
  96	  line to enable this feature.  N consists of the sum of:
  97
  98	      1 - undefined instruction events
  99	      2 - system calls
 100	      4 - invalid data aborts
 101	      8 - SIGSEGV faults
 102	     16 - SIGBUS faults
 103
 104# These options are only for real kernel hackers who want to get their hands dirty.
 105config DEBUG_LL
 106	bool "Kernel low-level debugging functions (read help!)"
 107	depends on DEBUG_KERNEL
 108	help
 109	  Say Y here to include definitions of printascii, printch, printhex
 110	  in the kernel.  This is helpful if you are debugging code that
 111	  executes before the console is initialized.
 112
 113	  Note that selecting this option will limit the kernel to a single
 114	  UART definition, as specified below. Attempting to boot the kernel
 115	  image on a different platform *will not work*, so this option should
 116	  not be enabled for kernels that are intended to be portable.
 117
 118choice
 119	prompt "Kernel low-level debugging port"
 120	depends on DEBUG_LL
 121
 122	config DEBUG_ALPINE_UART0
 123		bool "Kernel low-level debugging messages via Alpine UART0"
 124		depends on ARCH_ALPINE
 125		select DEBUG_UART_8250
 126		help
 127		  Say Y here if you want kernel low-level debugging support
 128		  on Alpine based platforms.
 129
 130	config DEBUG_ASM9260_UART
 131		bool "Kernel low-level debugging via asm9260 UART"
 132		depends on MACH_ASM9260
 133		help
 134		  Say Y here if you want the debug print routines to direct
 135		  their output to an UART or USART port on asm9260 based
 136		  machines.
 137
 138		    DEBUG_UART_PHYS | DEBUG_UART_VIRT
 139
 140		    0x80000000      | 0xf0000000     | UART0
 141		    0x80004000      | 0xf0004000     | UART1
 142		    0x80008000      | 0xf0008000     | UART2
 143		    0x8000c000      | 0xf000c000     | UART3
 144		    0x80010000      | 0xf0010000     | UART4
 145		    0x80014000      | 0xf0014000     | UART5
 146		    0x80018000      | 0xf0018000     | UART6
 147		    0x8001c000      | 0xf001c000     | UART7
 148		    0x80020000      | 0xf0020000     | UART8
 149		    0x80024000      | 0xf0024000     | UART9
 150
 151	config DEBUG_AT91_RM9200_DBGU
 152		bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
 153		select DEBUG_AT91_UART
 154		depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
 155		help
 156		  Say Y here if you want kernel low-level debugging support
 157		  on the DBGU port of:
 158		    at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
 159		    at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
 160
 161	config DEBUG_AT91_SAM9263_DBGU
 162		bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
 163		select DEBUG_AT91_UART
 164		depends on SOC_AT91SAM9 || SOC_SAMA5D3
 165		help
 166		  Say Y here if you want kernel low-level debugging support
 167		  on the DBGU port of:
 168		    at91sam9263, at91sam9g45, at91sam9m10,
 169		    sama5d3
 170
 171	config DEBUG_AT91_SAMA5D2_UART1
 172		bool "Kernel low-level debugging on SAMA5D2 UART1"
 173		select DEBUG_AT91_UART
 174		depends on SOC_SAMA5D2
 175		help
 176		  Say Y here if you want kernel low-level debugging support
 177		  on the UART1 port of sama5d2.
 178
 179	config DEBUG_AT91_SAMA5D4_USART3
 180		bool "Kernel low-level debugging on SAMA5D4 USART3"
 181		select DEBUG_AT91_UART
 182		depends on SOC_SAMA5D4
 183		help
 184		  Say Y here if you want kernel low-level debugging support
 185		  on the USART3 port of sama5d4.
 186
 187	config DEBUG_AT91_SAMV7_USART1
 188		bool "Kernel low-level debugging via SAMV7 USART1"
 189		select DEBUG_AT91_UART
 190		depends on SOC_SAMV7
 191		help
 192		  Say Y here if you want the debug print routines to direct
 193		  their output to the USART1 port on SAMV7 based
 194		  machines.
 195
 196	config DEBUG_BCM2835
 197		bool "Kernel low-level debugging on BCM2835 PL011 UART"
 198		depends on ARCH_BCM2835 && ARCH_MULTI_V6
 199		select DEBUG_UART_PL01X
 200
 201	config DEBUG_BCM2836
 202		bool "Kernel low-level debugging on BCM2836 PL011 UART"
 203		depends on ARCH_BCM2835 && ARCH_MULTI_V7
 204		select DEBUG_UART_PL01X
 205
 206	config DEBUG_BCM_5301X
 207		bool "Kernel low-level debugging on BCM5301X/NSP UART1"
 208		depends on ARCH_BCM_5301X || ARCH_BCM_NSP
 209		select DEBUG_UART_8250
 210
 211	config DEBUG_BCM_HR2
 212		bool "Kernel low-level debugging on Hurricane 2 UART2"
 213		depends on ARCH_BCM_HR2
 214		select DEBUG_UART_8250
 215
 216	config DEBUG_BCM_IPROC_UART3
 217		bool "Kernel low-level debugging on BCM IPROC UART3"
 218		depends on ARCH_BCM_CYGNUS
 219		select DEBUG_UART_8250
 220		help
 221		  Say Y here if you want the debug print routines to direct
 222		  their output to the third serial port on these devices.
 223
 224	config DEBUG_BCM_KONA_UART
 225		bool "Kernel low-level debugging messages via BCM KONA UART"
 226		depends on ARCH_BCM_MOBILE
 227		select DEBUG_UART_8250
 228		help
 229		  Say Y here if you want kernel low-level debugging support
 230		  on Broadcom SoC platforms.
 231		  This low level debug works for Broadcom
 232		  mobile SoCs in the Kona family of chips (e.g. bcm28155,
 233		  bcm11351, etc...)
 234
 235	config DEBUG_BCM63XX_UART
 236		bool "Kernel low-level debugging on BCM63XX UART"
 237		depends on ARCH_BCM_63XX
 238
 239	config DEBUG_BERLIN_UART
 240		bool "Marvell Berlin SoC Debug UART"
 241		depends on ARCH_BERLIN
 242		select DEBUG_UART_8250
 243		help
 244		  Say Y here if you want kernel low-level debugging support
 245		  on Marvell Berlin SoC based platforms.
 246
 247	config DEBUG_BRCMSTB_UART
 248		bool "Use BRCMSTB UART for low-level debug"
 249		depends on ARCH_BRCMSTB
 250		help
 251		  Say Y here if you want the debug print routines to direct
 252		  their output to the first serial port on these devices. The
 253		  UART physical and virtual address is automatically provided
 254		  based on the chip identification register value.
 255
 256		  If you have a Broadcom STB chip and would like early print
 257		  messages to appear over the UART, select this option.
 258
 259	config DEBUG_CLPS711X_UART1
 260		bool "Kernel low-level debugging messages via UART1"
 261		depends on ARCH_CLPS711X
 262		help
 263		  Say Y here if you want the debug print routines to direct
 264		  their output to the first serial port on these devices.
 265
 266	config DEBUG_CLPS711X_UART2
 267		bool "Kernel low-level debugging messages via UART2"
 268		depends on ARCH_CLPS711X
 269		help
 270		  Say Y here if you want the debug print routines to direct
 271		  their output to the second serial port on these devices.
 272
 273	config DEBUG_CNS3XXX
 274		bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
 275		depends on ARCH_CNS3XXX
 276		select DEBUG_UART_8250
 277		help
 278		  Say Y here if you want the debug print routines to direct
 279                  their output to the CNS3xxx UART0.
 280
 281	config DEBUG_DAVINCI_DA8XX_UART1
 282		bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
 283		depends on ARCH_DAVINCI_DA8XX
 284		select DEBUG_UART_8250
 285		help
 286		  Say Y here if you want the debug print routines to direct
 287		  their output to UART1 serial port on DaVinci DA8XX devices.
 288
 289	config DEBUG_DAVINCI_DA8XX_UART2
 290		bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
 291		depends on ARCH_DAVINCI_DA8XX
 292		select DEBUG_UART_8250
 293		help
 294		  Say Y here if you want the debug print routines to direct
 295		  their output to UART2 serial port on DaVinci DA8XX devices.
 296
 297	config DEBUG_DAVINCI_DMx_UART0
 298		bool "Kernel low-level debugging on DaVinci DMx using UART0"
 299		depends on ARCH_DAVINCI_DMx
 300		select DEBUG_UART_8250
 301		help
 302		  Say Y here if you want the debug print routines to direct
 303		  their output to UART0 serial port on DaVinci DMx devices.
 304
 
 
 
 
 
 
 
 
 305	config DEBUG_DC21285_PORT
 306		bool "Kernel low-level debugging messages via footbridge serial port"
 307		depends on FOOTBRIDGE
 308		help
 309		  Say Y here if you want the debug print routines to direct
 310		  their output to the serial port in the DC21285 (Footbridge).
 311
 312	config DEBUG_DIGICOLOR_UA0
 313		bool "Kernel low-level debugging messages via Digicolor UA0"
 314		depends on ARCH_DIGICOLOR
 315		help
 316		  Say Y here if you want the debug print routines to direct
 317		  their output to the UA0 serial port in the CX92755.
 318
 319	config DEBUG_EP93XX
 320		bool "Kernel low-level debugging messages via ep93xx UART"
 321		depends on ARCH_EP93XX
 322		select DEBUG_UART_PL01X
 323		help
 324		  Say Y here if you want kernel low-level debugging support
 325		  on Cirrus Logic EP93xx based platforms.
 326
 327	config DEBUG_FOOTBRIDGE_COM1
 328		bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
 329		depends on FOOTBRIDGE
 330		select DEBUG_UART_8250
 331		help
 332		  Say Y here if you want the debug print routines to direct
 333		  their output to the 8250 at PCI COM1.
 334
 335	config DEBUG_GEMINI
 336		bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
 337		depends on ARCH_GEMINI
 338		select DEBUG_UART_8250
 339		help
 340		  Say Y here if you want kernel low-level debugging support
 341		  on Cortina Gemini based platforms.
 342
 343	config DEBUG_HI3620_UART
 344		bool "Hisilicon HI3620 Debug UART"
 345		depends on ARCH_HI3xxx
 346		select DEBUG_UART_PL01X
 347		help
 348		  Say Y here if you want kernel low-level debugging support
 349		  on HI3620 UART.
 350
 351	config DEBUG_HIGHBANK_UART
 352		bool "Kernel low-level debugging messages via Highbank UART"
 353		depends on ARCH_HIGHBANK
 354		select DEBUG_UART_PL01X
 355		help
 356		  Say Y here if you want the debug print routines to direct
 357		  their output to the UART on Highbank based devices.
 358
 359	config DEBUG_HIP01_UART
 360		bool "Hisilicon Hip01 Debug UART"
 361		depends on ARCH_HIP01
 362		select DEBUG_UART_8250
 363		help
 364		  Say Y here if you want kernel low-level debugging support
 365		  on HIP01 UART.
 366
 367	config DEBUG_HIP04_UART
 368		bool "Hisilicon HiP04 Debug UART"
 369		depends on ARCH_HIP04
 370		select DEBUG_UART_8250
 371		help
 372		  Say Y here if you want kernel low-level debugging support
 373		  on HIP04 UART.
 374
 375	config DEBUG_HIX5HD2_UART
 376		bool "Hisilicon Hix5hd2 Debug UART"
 377		depends on ARCH_HIX5HD2
 378		select DEBUG_UART_PL01X
 379		help
 380		  Say Y here if you want kernel low-level debugging support
 381		  on Hix5hd2 UART.
 382
 383	config DEBUG_IMX1_UART
 384		bool "i.MX1 Debug UART"
 385		depends on SOC_IMX1
 386		help
 387		  Say Y here if you want kernel low-level debugging support
 388		  on i.MX1.
 389
 390	config DEBUG_IMX23_UART
 391		bool "i.MX23 Debug UART"
 392		depends on SOC_IMX23
 393		select DEBUG_UART_PL01X
 394		help
 395		  Say Y here if you want kernel low-level debugging support
 396		  on i.MX23.
 397
 398	config DEBUG_IMX25_UART
 399		bool "i.MX25 Debug UART"
 400		depends on SOC_IMX25
 401		help
 402		  Say Y here if you want kernel low-level debugging support
 403		  on i.MX25.
 404
 405	config DEBUG_IMX21_IMX27_UART
 406		bool "i.MX21 and i.MX27 Debug UART"
 407		depends on SOC_IMX21 || SOC_IMX27
 408		help
 409		  Say Y here if you want kernel low-level debugging support
 410		  on i.MX21 or i.MX27.
 411
 412	config DEBUG_IMX28_UART
 413		bool "i.MX28 Debug UART"
 414		depends on SOC_IMX28
 415		select DEBUG_UART_PL01X
 416		help
 417		  Say Y here if you want kernel low-level debugging support
 418		  on i.MX28.
 419
 420	config DEBUG_IMX31_UART
 421		bool "i.MX31 Debug UART"
 422		depends on SOC_IMX31
 423		help
 424		  Say Y here if you want kernel low-level debugging support
 425		  on i.MX31.
 426
 427	config DEBUG_IMX35_UART
 428		bool "i.MX35 Debug UART"
 429		depends on SOC_IMX35
 430		help
 431		  Say Y here if you want kernel low-level debugging support
 432		  on i.MX35.
 433
 434	config DEBUG_IMX50_UART
 435		bool "i.MX50 Debug UART"
 436		depends on SOC_IMX50
 437		help
 438		  Say Y here if you want kernel low-level debugging support
 439		  on i.MX50.
 440
 441	config DEBUG_IMX51_UART
 442		bool "i.MX51 Debug UART"
 443		depends on SOC_IMX51
 444		help
 445		  Say Y here if you want kernel low-level debugging support
 446		  on i.MX51.
 447
 448	config DEBUG_IMX53_UART
 449		bool "i.MX53 Debug UART"
 450		depends on SOC_IMX53
 451		help
 452		  Say Y here if you want kernel low-level debugging support
 453		  on i.MX53.
 454
 455	config DEBUG_IMX6Q_UART
 456		bool "i.MX6Q/DL Debug UART"
 457		depends on SOC_IMX6Q
 458		help
 459		  Say Y here if you want kernel low-level debugging support
 460		  on i.MX6Q/DL.
 
 461
 462	config DEBUG_IMX6SL_UART
 463		bool "i.MX6SL Debug UART"
 464		depends on SOC_IMX6SL
 465		help
 466		  Say Y here if you want kernel low-level debugging support
 467		  on i.MX6SL.
 468
 469	config DEBUG_IMX6SX_UART
 470		bool "i.MX6SX Debug UART"
 471		depends on SOC_IMX6SX
 472		help
 473		  Say Y here if you want kernel low-level debugging support
 474		  on i.MX6SX.
 475
 476	config DEBUG_IMX6UL_UART
 477		bool "i.MX6UL Debug UART"
 478		depends on SOC_IMX6UL
 479		help
 480		  Say Y here if you want kernel low-level debugging support
 481		  on i.MX6UL.
 482
 483	config DEBUG_IMX7D_UART
 484		bool "i.MX7D Debug UART"
 485		depends on SOC_IMX7D
 486		help
 487		  Say Y here if you want kernel low-level debugging support
 488		  on i.MX7D.
 489
 490	config DEBUG_INTEGRATOR
 491		bool "Kernel low-level debugging messages via ARM Integrator UART"
 492		depends on ARCH_INTEGRATOR
 493		select DEBUG_UART_PL01X
 494		help
 495		  Say Y here if you want kernel low-level debugging support
 496		  on ARM Integrator platforms.
 497
 498	config DEBUG_KEYSTONE_UART0
 499		bool "Kernel low-level debugging on KEYSTONE2 using UART0"
 500		depends on ARCH_KEYSTONE
 501		select DEBUG_UART_8250
 502		help
 503		  Say Y here if you want the debug print routines to direct
 504		  their output to UART0 serial port on KEYSTONE2 devices.
 505
 506	config DEBUG_KEYSTONE_UART1
 507		bool "Kernel low-level debugging on KEYSTONE2 using UART1"
 508		depends on ARCH_KEYSTONE
 509		select DEBUG_UART_8250
 510		help
 511		  Say Y here if you want the debug print routines to direct
 512		  their output to UART1 serial port on KEYSTONE2 devices.
 513
 514	config DEBUG_LPC18XX_UART0
 515		bool "Kernel low-level debugging via LPC18xx/43xx UART0"
 516		depends on ARCH_LPC18XX
 517		select DEBUG_UART_8250
 518		help
 519		  Say Y here if you want kernel low-level debugging support
 520		  on NXP LPC18xx/43xx UART0.
 521
 522	config DEBUG_LPC32XX
 523		bool "Kernel low-level debugging messages via NXP LPC32xx UART"
 524		depends on ARCH_LPC32XX
 525		select DEBUG_UART_8250
 526		help
 527		  Say Y here if you want kernel low-level debugging support
 528		  on NXP LPC32xx based platforms.
 529
 530	config DEBUG_MESON_UARTAO
 531		bool "Kernel low-level debugging via Meson6 UARTAO"
 532		depends on ARCH_MESON
 533		help
 534		  Say Y here if you want kernel low-lever debugging support
 535		  on Amlogic Meson6 based platforms on the UARTAO.
 536
 537	config DEBUG_MMP_UART2
 538		bool "Kernel low-level debugging message via MMP UART2"
 539		depends on ARCH_MMP
 540		select DEBUG_UART_8250
 541		help
 542		  Say Y here if you want kernel low-level debugging support
 543		  on MMP UART2.
 544
 545	config DEBUG_MMP_UART3
 546		bool "Kernel low-level debugging message via MMP UART3"
 547		depends on ARCH_MMP
 548		select DEBUG_UART_8250
 549		help
 550		  Say Y here if you want kernel low-level debugging support
 551		  on MMP UART3.
 552
 553	config DEBUG_MVEBU_UART0
 554		bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
 555		depends on ARCH_MVEBU
 556		depends on ARCH_MVEBU && CPU_V7
 557		select DEBUG_UART_8250
 558		help
 559		  Say Y here if you want kernel low-level debugging support
 560		  on MVEBU based platforms on UART0.
 561
 562		  This option should be used with the old bootloaders
 563		  that left the internal registers mapped at
 564		  0xd0000000. As of today, this is the case on
 565		  platforms such as the Globalscale Mirabox or the
 566		  Plathome OpenBlocks AX3, when using the original
 567		  bootloader.
 568
 569		  This option will not work on older Marvell platforms
 570		  (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
 571		  the "new bootloader" variant.
 572
 573		  If the wrong DEBUG_MVEBU_UART* option is selected,
 574		  when u-boot hands over to the kernel, the system
 575		  silently crashes, with no serial output at all.
 576
 577	config DEBUG_MVEBU_UART0_ALTERNATE
 578		bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
 579		depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
 580		select DEBUG_UART_8250
 581		help
 582		  Say Y here if you want kernel low-level debugging support
 583		  on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
 584		  Kirkwood, Dove, MV78xx0, Orion5x).
 585
 586
 587		  This option should be used with the new bootloaders
 588		  that remap the internal registers at 0xf1000000.
 589
 590		  If the wrong DEBUG_MVEBU_UART* option is selected,
 591		  when u-boot hands over to the kernel, the system
 592		  silently crashes, with no serial output at all.
 593
 594	config DEBUG_MVEBU_UART1_ALTERNATE
 595		bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
 596		depends on ARCH_MVEBU
 597		select DEBUG_UART_8250
 598		help
 599		  Say Y here if you want kernel low-level debugging support
 600		  on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
 601		  Kirkwood, Dove, MV78xx0, Orion5x).
 602
 603		  This option should be used with the new bootloaders
 604		  that remap the internal registers at 0xf1000000.
 605		  All of the older (pre Armada XP/370) platforms also use
 606		  this address, regardless of the boot loader version.
 607
 608		  If the wrong DEBUG_MVEBU_UART* option is selected,
 609		  when u-boot hands over to the kernel, the system
 610		  silently crashes, with no serial output at all.
 611
 612	config DEBUG_MSTARV7_PMUART
 613		bool "Kernel low-level debugging messages via MSTARV7 PM UART"
 614		depends on ARCH_MSTARV7
 615		select DEBUG_UART_8250
 616		help
 617		  Say Y here if you want kernel low-level debugging support
 618		  for MSTAR ARMv7-based platforms on PM UART.
 619
 620	config DEBUG_MT6589_UART0
 621		bool "Mediatek mt6589 UART0"
 622		depends on ARCH_MEDIATEK
 623		select DEBUG_UART_8250
 624		help
 625		  Say Y here if you want kernel low-level debugging support
 626		  for Mediatek mt6589 based platforms on UART0.
 627
 628	config DEBUG_MT8127_UART0
 629		bool "Mediatek mt8127/mt6592 UART0"
 630		depends on ARCH_MEDIATEK
 631		select DEBUG_UART_8250
 632		help
 633		  Say Y here if you want kernel low-level debugging support
 634		  for Mediatek mt8127 based platforms on UART0.
 635
 636	config DEBUG_MT8135_UART3
 637		bool "Mediatek mt8135 UART3"
 638		depends on ARCH_MEDIATEK
 639		select DEBUG_UART_8250
 640		help
 641		  Say Y here if you want kernel low-level debugging support
 642		  for Mediatek mt8135 based platforms on UART3.
 643
 644	config DEBUG_NOMADIK_UART
 645		bool "Kernel low-level debugging messages via NOMADIK UART"
 646		depends on ARCH_NOMADIK
 647		select DEBUG_UART_PL01X
 648		help
 649		  Say Y here if you want kernel low-level debugging support
 650		  on NOMADIK based platforms.
 651
 652	config DEBUG_NSPIRE_CLASSIC_UART
 653		bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
 654		depends on ARCH_NSPIRE
 655		select DEBUG_UART_8250
 656		help
 657		  Say Y here if you want kernel low-level debugging support
 658		  on TI-NSPIRE classic models.
 659
 660	config DEBUG_NSPIRE_CX_UART
 661		bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
 662		depends on ARCH_NSPIRE
 663		select DEBUG_UART_PL01X
 664		help
 665		  Say Y here if you want kernel low-level debugging support
 666		  on TI-NSPIRE CX models.
 667
 668	config DEBUG_OMAP1UART1
 669		bool "Kernel low-level debugging via OMAP1 UART1"
 670		depends on ARCH_OMAP1
 671		select DEBUG_UART_8250
 672		help
 673		  Say Y here if you want kernel low-level debugging support
 674		  on OMAP1 based platforms (except OMAP730) on the UART1.
 675
 676	config DEBUG_OMAP1UART2
 677		bool "Kernel low-level debugging via OMAP1 UART2"
 678		depends on ARCH_OMAP1
 679		select DEBUG_UART_8250
 680		help
 681		  Say Y here if you want kernel low-level debugging support
 682		  on OMAP1 based platforms (except OMAP730) on the UART2.
 683
 684	config DEBUG_OMAP1UART3
 685		bool "Kernel low-level debugging via OMAP1 UART3"
 686		depends on ARCH_OMAP1
 687		select DEBUG_UART_8250
 688		help
 689		  Say Y here if you want kernel low-level debugging support
 690		  on OMAP1 based platforms (except OMAP730) on the UART3.
 691
 692	config DEBUG_OMAP2UART1
 693		bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
 694		depends on ARCH_OMAP2PLUS
 695		select DEBUG_UART_8250
 696		help
 697		  This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
 698		  omap3 torpedo and 3530 lv som.
 699
 700	config DEBUG_OMAP2UART2
 701		bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
 702		depends on ARCH_OMAP2PLUS
 703		select DEBUG_UART_8250
 704
 705	config DEBUG_OMAP2UART3
 706		bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
 707		depends on ARCH_OMAP2PLUS
 708		select DEBUG_UART_8250
 709
 710	config DEBUG_OMAP3UART3
 711		bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
 712		depends on ARCH_OMAP2PLUS
 713		select DEBUG_UART_8250
 714		help
 715		  This covers at least cm_t3x, beagle, crane, devkit8000,
 716		  igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
 717		  and 3517evm.
 718
 719	config DEBUG_OMAP4UART3
 720		bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
 721		depends on ARCH_OMAP2PLUS
 722		select DEBUG_UART_8250
 723
 724	config DEBUG_OMAP3UART4
 725		bool "Kernel low-level debugging messages via OMAP36XX UART4"
 726		depends on ARCH_OMAP2PLUS
 727		select DEBUG_UART_8250
 728
 729	config DEBUG_OMAP4UART4
 730		bool "Kernel low-level debugging messages via OMAP4/5 UART4"
 731		depends on ARCH_OMAP2PLUS
 732		select DEBUG_UART_8250
 733
 734	config DEBUG_OMAP7XXUART1
 735		bool "Kernel low-level debugging via OMAP730 UART1"
 736		depends on ARCH_OMAP730
 737		select DEBUG_UART_8250
 738		help
 739		  Say Y here if you want kernel low-level debugging support
 740		  on OMAP730 based platforms on the UART1.
 741
 742	config DEBUG_OMAP7XXUART2
 743		bool "Kernel low-level debugging via OMAP730 UART2"
 744		depends on ARCH_OMAP730
 745		select DEBUG_UART_8250
 746		help
 747		  Say Y here if you want kernel low-level debugging support
 748		  on OMAP730 based platforms on the UART2.
 749
 750	config DEBUG_OMAP7XXUART3
 751		bool "Kernel low-level debugging via OMAP730 UART3"
 752		depends on ARCH_OMAP730
 753		select DEBUG_UART_8250
 754		help
 755		  Say Y here if you want kernel low-level debugging support
 756		  on OMAP730 based platforms on the UART3.
 757
 758	config DEBUG_TI81XXUART1
 759		bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
 760		depends on ARCH_OMAP2PLUS
 761		select DEBUG_UART_8250
 762
 763	config DEBUG_TI81XXUART2
 764		bool "Kernel low-level debugging messages via TI81XX UART2"
 765		depends on ARCH_OMAP2PLUS
 766		select DEBUG_UART_8250
 767
 768	config DEBUG_TI81XXUART3
 769		bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
 770		depends on ARCH_OMAP2PLUS
 771		select DEBUG_UART_8250
 772
 773	config DEBUG_AM33XXUART1
 774		bool "Kernel low-level debugging messages via AM33XX UART1"
 775		depends on ARCH_OMAP2PLUS
 776		select DEBUG_UART_8250
 777
 778	config DEBUG_ZOOM_UART
 779		bool "Kernel low-level debugging messages via Zoom2/3 UART"
 780		depends on ARCH_OMAP2PLUS
 781		select DEBUG_OMAP2PLUS_UART
 782
 783	config DEBUG_PXA_UART1
 784		depends on ARCH_PXA
 785		bool "Use PXA UART1 for low-level debug"
 786		select DEBUG_UART_8250
 787		help
 788		  Say Y here if you want kernel low-level debugging support
 789		  on PXA UART1.
 790
 791	config DEBUG_QCOM_UARTDM
 792		bool "Kernel low-level debugging messages via QCOM UARTDM"
 793		depends on ARCH_QCOM
 794		help
 795		  Say Y here if you want the debug print routines to direct
 796		  their output to the serial port on Qualcomm devices.
 797
 798		  ARCH      DEBUG_UART_PHYS   DEBUG_UART_VIRT
 799		  APQ8064   0x16640000        0xf0040000
 800		  APQ8084   0xf995e000        0xfa75e000
 801		  IPQ4019   0x078af000        0xf78af000
 802		  MSM8X60   0x19c40000        0xf0040000
 803		  MSM8960   0x16440000        0xf0040000
 804		  MSM8974   0xf991e000        0xfa71e000
 805
 806		  Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
 807		  options based on your needs.
 808
 809	config DEBUG_REALVIEW_STD_PORT
 810		bool "RealView Default UART"
 811		depends on ARCH_REALVIEW
 812		select DEBUG_UART_PL01X
 813		help
 814		  Say Y here if you want the debug print routines to direct
 815		  their output to the serial port on RealView EB, PB11MP, PBA8
 816		  and PBX platforms.
 817
 818	config DEBUG_REALVIEW_PB1176_PORT
 819		bool "RealView PB1176 UART"
 820		depends on MACH_REALVIEW_PB1176
 821		select DEBUG_UART_PL01X
 822		help
 823		  Say Y here if you want the debug print routines to direct
 824		  their output to the standard serial port on the RealView
 825		  PB1176 platform.
 826
 827	config DEBUG_RV1108_UART0
 828		bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
 829		depends on ARCH_ROCKCHIP
 830		select DEBUG_UART_8250
 831		help
 832		  Say Y here if you want kernel low-level debugging support
 833                  on Rockchip RV1108 based platforms.
 834
 835	config DEBUG_RV1108_UART1
 836		bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
 837		depends on ARCH_ROCKCHIP
 838		select DEBUG_UART_8250
 839		help
 840		  Say Y here if you want kernel low-level debugging support
 841		  on Rockchip RV1108 based platforms.
 842
 843	config DEBUG_RV1108_UART2
 844		bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
 845		depends on ARCH_ROCKCHIP
 846		select DEBUG_UART_8250
 847		help
 848		  Say Y here if you want kernel low-level debugging support
 849		  on Rockchip RV1108 based platforms.
 850
 851	config DEBUG_RK29_UART0
 852		bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
 853		depends on ARCH_ROCKCHIP
 854		select DEBUG_UART_8250
 855		help
 856		  Say Y here if you want kernel low-level debugging support
 857		  on Rockchip based platforms.
 858
 859	config DEBUG_RK29_UART1
 860		bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
 861		depends on ARCH_ROCKCHIP
 862		select DEBUG_UART_8250
 863		help
 864		  Say Y here if you want kernel low-level debugging support
 865		  on Rockchip based platforms.
 866
 867	config DEBUG_RK29_UART2
 868		bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
 869		depends on ARCH_ROCKCHIP
 870		select DEBUG_UART_8250
 871		help
 872		  Say Y here if you want kernel low-level debugging support
 873		  on Rockchip based platforms.
 874
 875	config DEBUG_RK3X_UART0
 876		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
 877		depends on ARCH_ROCKCHIP
 878		select DEBUG_UART_8250
 879		help
 880		  Say Y here if you want kernel low-level debugging support
 881		  on Rockchip based platforms.
 882
 883	config DEBUG_RK3X_UART1
 884		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
 885		depends on ARCH_ROCKCHIP
 886		select DEBUG_UART_8250
 887		help
 888		  Say Y here if you want kernel low-level debugging support
 889		  on Rockchip based platforms.
 890
 891	config DEBUG_RK3X_UART2
 892		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
 893		depends on ARCH_ROCKCHIP
 894		select DEBUG_UART_8250
 895		help
 896		  Say Y here if you want kernel low-level debugging support
 897		  on Rockchip based platforms.
 898
 899	config DEBUG_RK3X_UART3
 900		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
 901		depends on ARCH_ROCKCHIP
 902		select DEBUG_UART_8250
 903		help
 904		  Say Y here if you want kernel low-level debugging support
 905		  on Rockchip based platforms.
 906
 907	config DEBUG_RK32_UART2
 908		bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
 909		depends on ARCH_ROCKCHIP
 910		select DEBUG_UART_8250
 911		help
 912		  Say Y here if you want kernel low-level debugging support
 913		  on Rockchip RK32xx based platforms.
 914
 915	config DEBUG_R7S72100_SCIF2
 916		bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
 917		depends on ARCH_R7S72100
 918		help
 919		  Say Y here if you want kernel low-level debugging support
 920		  via SCIF2 on Renesas RZ/A1H (R7S72100).
 921
 922	config DEBUG_R7S9210_SCIF2
 923		bool "Kernel low-level debugging messages via SCIF2 on R7S9210"
 924		depends on ARCH_R7S9210
 925		help
 926		  Say Y here if you want kernel low-level debugging support
 927		  via SCIF2 on Renesas RZ/A2M (R7S9210).
 928
 929	config DEBUG_R7S9210_SCIF4
 930		bool "Kernel low-level debugging messages via SCIF4 on R7S9210"
 931		depends on ARCH_R7S9210
 932		help
 933		  Say Y here if you want kernel low-level debugging support
 934		  via SCIF4 on Renesas RZ/A2M (R7S9210).
 935
 936	config DEBUG_RCAR_GEN1_SCIF0
 937		bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
 938		depends on ARCH_R8A7778
 939		help
 940		  Say Y here if you want kernel low-level debugging support
 941		  via SCIF0 on Renesas R-Car M1A (R8A7778).
 942
 943	config DEBUG_RCAR_GEN1_SCIF2
 944		bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
 945		depends on ARCH_R8A7779
 946		help
 947		  Say Y here if you want kernel low-level debugging support
 948		  via SCIF2 on Renesas R-Car H1 (R8A7779).
 949
 950	config DEBUG_RCAR_GEN2_SCIF0
 951		bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
 952		depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \
 953			ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
 954		help
 955		  Say Y here if you want kernel low-level debugging support
 956		  via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744),
 957		  R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or
 958		  M2-N (R8A7793).
 959
 960	config DEBUG_RCAR_GEN2_SCIF1
 961		bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
 962		depends on ARCH_R8A77470
 963		help
 964		  Say Y here if you want kernel low-level debugging support
 965		  via SCIF1 on Renesas RZ/G1C (R8A77470).
 966
 967	config DEBUG_RCAR_GEN2_SCIF2
 968		bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
 969		depends on ARCH_R8A7794
 970		help
 971		  Say Y here if you want kernel low-level debugging support
 972		  via SCIF2 on Renesas R-Car E2 (R8A7794).
 973
 974	config DEBUG_RCAR_GEN2_SCIF4
 975		bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
 976		depends on ARCH_R8A7745
 977		help
 978		  Say Y here if you want kernel low-level debugging support
 979		  via SCIF4 on Renesas RZ/G1E (R8A7745).
 980
 981	config DEBUG_RCAR_GEN2_SCIFA2
 982		bool "Kernel low-level debugging messages via SCIFA2 on R8A7742"
 983		depends on ARCH_R8A7742
 984		help
 985		  Say Y here if you want kernel low-level debugging support
 986		  via SCIFA2 on Renesas RZ/G1H (R8A7742).
 987
 988	config DEBUG_RMOBILE_SCIFA0
 989		bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
 990		depends on ARCH_R8A73A4
 991		help
 992		  Say Y here if you want kernel low-level debugging support
 993		  via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
 994
 995	config DEBUG_RMOBILE_SCIFA1
 996		bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
 997		depends on ARCH_R8A7740
 998		help
 999		  Say Y here if you want kernel low-level debugging support
1000		  via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
1001
1002	config DEBUG_RMOBILE_SCIFA4
1003		bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
1004		depends on ARCH_SH73A0
1005		help
1006		  Say Y here if you want kernel low-level debugging support
1007		  via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
1008
1009	config DEBUG_S3C_UART0
1010		depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1011		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1012		select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1013		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1014		select DEBUG_S5PV210_UART if ARCH_S5PV210
1015		bool "Use Samsung S3C UART 0 for low-level debug"
1016		help
1017		  Say Y here if you want the debug print routines to direct
1018		  their output to UART 0. The port must have been initialised
1019		  by the boot-loader before use.
1020
 
 
 
1021	config DEBUG_S3C_UART1
1022		depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1023		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1024		select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1025		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1026		select DEBUG_S5PV210_UART if ARCH_S5PV210
1027		bool "Use Samsung S3C UART 1 for low-level debug"
1028		help
1029		  Say Y here if you want the debug print routines to direct
1030		  their output to UART 1. The port must have been initialised
1031		  by the boot-loader before use.
1032
 
 
 
1033	config DEBUG_S3C_UART2
1034		depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1035		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1036		select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1037		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1038		select DEBUG_S5PV210_UART if ARCH_S5PV210
1039		bool "Use Samsung S3C UART 2 for low-level debug"
1040		help
1041		  Say Y here if you want the debug print routines to direct
1042		  their output to UART 2. The port must have been initialised
1043		  by the boot-loader before use.
1044
1045	config DEBUG_S3C_UART3
1046		depends on ARCH_EXYNOS || ARCH_S5PV210
1047		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1048		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1049		select DEBUG_S5PV210_UART if ARCH_S5PV210
1050		bool "Use Samsung S3C UART 3 for low-level debug"
1051		help
1052		  Say Y here if you want the debug print routines to direct
1053		  their output to UART 3. The port must have been initialised
1054		  by the boot-loader before use.
1055
1056	config DEBUG_S3C2410_UART0
1057		depends on ARCH_S3C24XX
1058		select DEBUG_S3C2410_UART
1059		bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
1060		help
1061		  Say Y here if you want the debug print routines to direct
1062		  their output to UART 0. The port must have been initialised
1063		  by the boot-loader before use.
1064
1065	config DEBUG_S3C2410_UART1
1066		depends on ARCH_S3C24XX
1067		select DEBUG_S3C2410_UART
1068		bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
1069		help
1070		  Say Y here if you want the debug print routines to direct
1071		  their output to UART 1. The port must have been initialised
1072		  by the boot-loader before use.
1073
1074	config DEBUG_S3C2410_UART2
1075		depends on ARCH_S3C24XX
1076		select DEBUG_S3C2410_UART
1077		bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
1078		help
1079		  Say Y here if you want the debug print routines to direct
1080		  their output to UART 2. The port must have been initialised
1081		  by the boot-loader before use.
1082
1083	config DEBUG_SA1100
1084		depends on ARCH_SA1100
1085		bool "Use SA1100 UARTs for low-level debug"
1086		help
1087		  Say Y here if you want kernel low-level debugging support
1088		  on SA-11x0 UART ports. The kernel will check for the first
1089		  enabled UART in a sequence 3-1-2.
1090
1091	config DEBUG_SD5203_UART
1092		bool "Hisilicon SD5203 Debug UART"
1093		depends on ARCH_SD5203
1094		select DEBUG_UART_8250
1095		help
1096		  Say Y here if you want kernel low-level debugging support
1097		  on SD5203 UART.
1098
1099	config DEBUG_SOCFPGA_UART0
1100		depends on ARCH_INTEL_SOCFPGA
1101		bool "Use SOCFPGA UART0 for low-level debug"
1102		select DEBUG_UART_8250
1103		help
1104		  Say Y here if you want kernel low-level debugging support
1105		  on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1106
1107	config DEBUG_SOCFPGA_ARRIA10_UART1
1108		depends on ARCH_INTEL_SOCFPGA
1109		bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1110		select DEBUG_UART_8250
1111		help
1112		  Say Y here if you want kernel low-level debugging support
1113		  on SOCFPGA(Arria 10) based platforms.
1114
1115	config DEBUG_SOCFPGA_CYCLONE5_UART1
1116		depends on ARCH_INTEL_SOCFPGA
1117		bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1118		select DEBUG_UART_8250
1119		help
1120		  Say Y here if you want kernel low-level debugging support
1121		  on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1122
1123	config DEBUG_SUN9I_UART0
1124		bool "Kernel low-level debugging messages via sun9i UART0"
1125		depends on MACH_SUN9I
1126		select DEBUG_UART_8250
1127		help
1128		  Say Y here if you want kernel low-level debugging support
1129		  on Allwinner A80 based platforms on the UART0.
1130
1131	config DEBUG_SUNXI_UART0
1132		bool "Kernel low-level debugging messages via sunXi UART0"
1133		depends on ARCH_SUNXI
1134		select DEBUG_UART_8250
1135		help
1136		  Say Y here if you want kernel low-level debugging support
1137		  on Allwinner A1X based platforms on the UART0.
1138
1139	config DEBUG_SUNXI_UART1
1140		bool "Kernel low-level debugging messages via sunXi UART1"
1141		depends on ARCH_SUNXI
1142		select DEBUG_UART_8250
1143		help
1144		  Say Y here if you want kernel low-level debugging support
1145		  on Allwinner A1X based platforms on the UART1.
1146
1147	config DEBUG_SUNXI_R_UART
1148		bool "Kernel low-level debugging messages via sunXi R_UART"
1149		depends on MACH_SUN6I || MACH_SUN8I
1150		select DEBUG_UART_8250
1151		help
1152		  Say Y here if you want kernel low-level debugging support
1153		  on Allwinner A31/A23 based platforms on the R_UART.
1154
1155	config DEBUG_SPEAR3XX
1156		bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1157		depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1158		select DEBUG_UART_PL01X
1159		help
1160		  Say Y here if you want kernel low-level debugging support
1161		  on ST SPEAr based platforms.
1162
1163	config DEBUG_SPEAR13XX
1164		bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1165		depends on ARCH_SPEAR13XX
1166		select DEBUG_UART_PL01X
1167		help
1168		  Say Y here if you want kernel low-level debugging support
1169		  on ST SPEAr13xx based platforms.
1170
1171	config DEBUG_STIH41X_ASC2
1172		bool "Use StiH415/416 ASC2 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 b2000, which has
1177		  default UART wired up to ASC2.
1178
1179		  If unsure, say N.
1180
1181	config DEBUG_STIH41X_SBC_ASC1
1182		bool "Use StiH415/416 SBC ASC1 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 STiH415/416 based platforms like b2020. which has
1187		  default UART wired up to SBC ASC1.
1188
1189		  If unsure, say N.
1190
1191	config DEBUG_STIH418_SBC_ASC0
1192		bool "Use StiH418 SBC ASC0 UART for low-level debug"
1193		depends on ARCH_STI
1194		help
1195		  Say Y here if you want kernel low-level debugging support
1196		  on STiH418 based platforms which has default UART wired
1197		  up to SBC ASC0.
1198
1199		  If unsure, say N.
1200
1201	config STM32F4_DEBUG_UART
1202		bool "Use STM32F4 UART for low-level debug"
1203		depends on MACH_STM32F429 || MACH_STM32F469
1204		select DEBUG_STM32_UART
1205		help
1206		  Say Y here if you want kernel low-level debugging support
1207		  on STM32F4 based platforms, which default UART is wired on
1208		  USART1, but another UART instance can be selected by modifying
1209		  CONFIG_DEBUG_UART_PHYS.
1210
1211		  If unsure, say N.
1212
1213	config STM32F7_DEBUG_UART
1214		bool "Use STM32F7 UART for low-level debug"
1215		depends on MACH_STM32F746 || MACH_STM32F769
1216		select DEBUG_STM32_UART
1217		help
1218		  Say Y here if you want kernel low-level debugging support
1219		  on STM32F7 based platforms, which default UART is wired on
1220		  USART1, but another UART instance can be selected by modifying
1221		  CONFIG_DEBUG_UART_PHYS.
1222
1223		  If unsure, say N.
1224
1225	config STM32H7_DEBUG_UART
1226		bool "Use STM32H7 UART for low-level debug"
1227		depends on MACH_STM32H743
1228		select DEBUG_STM32_UART
1229		help
1230		  Say Y here if you want kernel low-level debugging support
1231		  on STM32H7 based platforms, which default UART is wired on
1232		  USART1, but another UART instance can be selected by modifying
1233		  CONFIG_DEBUG_UART_PHYS.
1234
1235		  If unsure, say N.
1236
1237	config STM32MP1_DEBUG_UART
1238		bool "Use STM32MP1 UART for low-level debug"
1239		depends on MACH_STM32MP157
1240		select DEBUG_STM32_UART
1241		help
1242		  Say Y here if you want kernel low-level debugging support
1243		  on STM32MP1 based platforms, wich default UART is wired on
1244		  UART4, but another UART instance can be selected by modifying
1245		  CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
1246
1247		  If unsure, say N.
1248
1249	config TEGRA_DEBUG_UART_AUTO_ODMDATA
1250		bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1251		depends on ARCH_TEGRA
1252		select DEBUG_TEGRA_UART
1253		help
1254		  Automatically determines which UART to use for low-level
1255		  debug based on the ODMDATA value. This value is part of
1256		  the BCT, and is written to the boot memory device using
1257		  nvflash, or other flashing tool.  When bits 19:18 are 3,
1258		  then bits 17:15 indicate which UART to use; 0/1/2/3/4
1259		  are UART A/B/C/D/E.
1260
1261	config TEGRA_DEBUG_UARTA
1262		bool "Kernel low-level debugging messages via Tegra UART A"
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 TEGRA_DEBUG_UARTB
1270		bool "Kernel low-level debugging messages via Tegra UART B"
1271		depends on ARCH_TEGRA
1272		select DEBUG_TEGRA_UART
1273		help
1274		  Say Y here if you want kernel low-level debugging support
1275		  on Tegra based platforms.
1276
1277	config TEGRA_DEBUG_UARTC
1278		bool "Kernel low-level debugging messages via Tegra UART C"
1279		depends on ARCH_TEGRA
1280		select DEBUG_TEGRA_UART
1281		help
1282		  Say Y here if you want kernel low-level debugging support
1283		  on Tegra based platforms.
1284
1285	config TEGRA_DEBUG_UARTD
1286		bool "Kernel low-level debugging messages via Tegra UART D"
1287		depends on ARCH_TEGRA
1288		select DEBUG_TEGRA_UART
1289		help
1290		  Say Y here if you want kernel low-level debugging support
1291		  on Tegra based platforms.
1292
1293	config TEGRA_DEBUG_UARTE
1294		bool "Kernel low-level debugging messages via Tegra UART E"
1295		depends on ARCH_TEGRA
1296		select DEBUG_TEGRA_UART
1297		help
1298		  Say Y here if you want kernel low-level debugging support
1299		  on Tegra based platforms.
1300
1301	config DEBUG_UX500_UART
1302		depends on ARCH_U8500
1303		bool "Use Ux500 UART for low-level debug"
1304		help
1305		  Say Y here if you want kernel low-level debugging support
1306		  on Ux500 based platforms.
1307
1308	config DEBUG_VERSATILE
1309		bool "Kernel low-level debugging messages via ARM Versatile UART"
1310		depends on ARCH_VERSATILE
1311		select DEBUG_UART_PL01X
1312		help
1313		  Say Y here if you want kernel low-level debugging support
1314		  on ARM Versatile platforms.
1315
1316	config DEBUG_VEXPRESS_UART0_DETECT
1317		bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1318		depends on ARCH_VEXPRESS && CPU_CP15_MMU
1319		help
1320		  This option enables a simple heuristic which tries to determine
1321		  the motherboard's memory map variant (original or RS1) and then
1322		  choose the relevant UART0 base address.
1323
1324		  Note that this will only work with standard A-class core tiles,
1325		  and may fail with non-standard SMM or custom software models.
1326
1327	config DEBUG_VEXPRESS_UART0_CA9
1328		bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1329		depends on ARCH_VEXPRESS
1330		select DEBUG_UART_PL01X
1331		help
1332		  This option selects UART0 at 0x10009000. Except for custom models,
1333		  this applies only to the V2P-CA9 tile.
1334
1335	config DEBUG_VEXPRESS_UART0_RS1
1336		bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1337		depends on ARCH_VEXPRESS
1338		select DEBUG_UART_PL01X
1339		help
1340		  This option selects UART0 at 0x1c090000. This applies to most
1341		  of the tiles using the RS1 memory map, including all new A-class
1342		  core tiles, FPGA-based SMMs and software models.
1343
1344	config DEBUG_VEXPRESS_UART0_CRX
1345		bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1346		depends on ARCH_VEXPRESS && !MMU
1347		select DEBUG_UART_PL01X
1348		help
1349		  This option selects UART0 at 0xb0090000. This is appropriate for
1350		  Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1351
1352	config DEBUG_VF_UART
1353		bool "Vybrid UART"
1354		depends on SOC_VF610
1355		help
1356		  Say Y here if you want kernel low-level debugging support
1357		  on Vybrid based platforms.
1358
1359	config DEBUG_VT8500_UART0
1360		bool "Use UART0 on VIA/Wondermedia SoCs"
1361		depends on ARCH_VT8500
1362		help
1363		  This option selects UART0 on VIA/Wondermedia System-on-a-chip
1364		  devices, including VT8500, WM8505, WM8650 and WM8850.
1365
1366	config DEBUG_ZYNQ_UART0
1367		bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1368		depends on ARCH_ZYNQ
1369		help
1370		  Say Y here if you want the debug print routines to direct
1371		  their output to UART0 on the Zynq platform.
1372
1373	config DEBUG_ZYNQ_UART1
1374		bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1375		depends on ARCH_ZYNQ
1376		help
1377		  Say Y here if you want the debug print routines to direct
1378		  their output to UART1 on the Zynq platform.
1379
1380		  If you have a ZC702 board and want early boot messages to
1381		  appear on the USB serial adaptor, select this option.
1382
1383	config DEBUG_ICEDCC
1384		bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1385		help
1386		  Say Y here if you want the debug print routines to direct
1387		  their output to the EmbeddedICE macrocell's DCC channel using
1388		  co-processor 14. This is known to work on the ARM9 style ICE
1389		  channel and on the XScale with the PEEDI.
1390
1391		  Note that the system will appear to hang during boot if there
1392		  is nothing connected to read from the DCC.
1393
1394	config DEBUG_SEMIHOSTING
1395		bool "Kernel low-level debug output via semihosting I/O"
1396		help
1397		  Semihosting enables code running on an ARM target to use
1398		  the I/O facilities on a host debugger/emulator through a
1399		  simple SVC call. The host debugger or emulator must have
1400		  semihosting enabled for the special svc call to be trapped
1401		  otherwise the kernel will crash.
1402
1403		  This is known to work with OpenOCD, as well as
1404		  ARM's Fast Models, or any other controlling environment
1405		  that implements semihosting.
1406
1407		  For more details about semihosting, please see
1408		  chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1409
1410	config DEBUG_LL_UART_8250
1411		bool "Kernel low-level debugging via 8250 UART"
1412		help
1413		  Say Y here if you wish the debug print routes to direct
1414		  their output to an 8250 UART.  You can use this option
1415		  to provide the parameters for the 8250 UART rather than
1416		  selecting one of the platform specific options above if
1417		  you know the parameters for the port.
1418
1419		  This option is preferred over the platform specific
1420		  options; the platform specific options are deprecated
1421		  and will be soon removed.
1422
1423	config DEBUG_LL_UART_PL01X
1424		bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1425		help
1426		  Say Y here if you wish the debug print routes to direct
1427		  their output to a PL01x Primecell UART.  You can use
1428		  this option to provide the parameters for the UART
1429		  rather than selecting one of the platform specific
1430		  options above if you know the parameters for the port.
1431
1432		  This option is preferred over the platform specific
1433		  options; the platform specific options are deprecated
1434		  and will be soon removed.
1435
1436endchoice
1437
1438config DEBUG_AT91_UART
1439	bool
1440	depends on ARCH_AT91
1441
1442config DEBUG_EXYNOS_UART
1443	bool
1444
1445config DEBUG_S3C2410_UART
1446	bool
1447	select DEBUG_S3C24XX_UART
1448
1449config DEBUG_S3C24XX_UART
1450	bool
1451
1452config DEBUG_S3C64XX_UART
1453	bool
1454
1455config DEBUG_S5PV210_UART
1456	bool
1457
1458config DEBUG_S3C_UART
1459	depends on DEBUG_S3C2410_UART || DEBUG_S3C24XX_UART || \
1460		   DEBUG_S3C64XX_UART ||  DEBUG_S5PV210_UART || \
1461		   DEBUG_EXYNOS_UART
1462	int
1463	default "0" if DEBUG_S3C_UART0
1464	default "1" if DEBUG_S3C_UART1
1465	default "2" if DEBUG_S3C_UART2
1466	default "3" if DEBUG_S3C_UART3
1467
1468config DEBUG_OMAP2PLUS_UART
1469	bool
1470	depends on ARCH_OMAP2PLUS
1471
1472config DEBUG_IMX_UART_PORT
1473	int "i.MX Debug UART Port Selection"
1474	depends on DEBUG_IMX1_UART || \
1475		   DEBUG_IMX25_UART || \
1476		   DEBUG_IMX21_IMX27_UART || \
1477		   DEBUG_IMX31_UART || \
1478		   DEBUG_IMX35_UART || \
1479		   DEBUG_IMX50_UART || \
1480		   DEBUG_IMX51_UART || \
1481		   DEBUG_IMX53_UART || \
1482		   DEBUG_IMX6Q_UART || \
1483		   DEBUG_IMX6SL_UART || \
1484		   DEBUG_IMX6SX_UART || \
1485		   DEBUG_IMX6UL_UART || \
1486		   DEBUG_IMX7D_UART
1487	default 1
1488	help
1489	  Choose UART port on which kernel low-level debug messages
1490	  should be output.
1491
1492config DEBUG_VF_UART_PORT
1493	int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1494	default 1
1495	range 0 3
1496	depends on SOC_VF610
1497	help
1498	  Choose UART port on which kernel low-level debug messages
1499	  should be output.
1500
1501config DEBUG_TEGRA_UART
1502	bool
1503	depends on ARCH_TEGRA
1504
1505config DEBUG_STM32_UART
1506	bool
1507	depends on ARCH_STM32
1508
1509config DEBUG_UART_FLOW_CONTROL
1510	bool "Enable flow control (CTS) for the debug UART"
1511	depends on DEBUG_LL
1512	default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1513	help
1514	  Some UART ports are connected to terminals that will use modem
1515	  control signals to indicate whether they are ready to receive text.
1516	  In practice this means that the terminal is asserting the special
1517	  control signal CTS (Clear To Send). If your debug UART supports
1518	  this and your debug terminal will require it, enable this option.
1519
1520config DEBUG_LL_INCLUDE
1521	string
1522	default "debug/sa1100.S" if DEBUG_SA1100
1523	default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1524	default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1525	default "debug/at91.S" if DEBUG_AT91_UART
1526	default "debug/asm9260.S" if DEBUG_ASM9260_UART
1527	default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1528	default "debug/dc21285.S" if DEBUG_DC21285_PORT
1529	default "debug/meson.S" if DEBUG_MESON_UARTAO
1530	default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1531	default "debug/exynos.S" if DEBUG_EXYNOS_UART
1532	default "debug/icedcc.S" if DEBUG_ICEDCC
1533	default "debug/imx.S" if DEBUG_IMX1_UART || \
1534				 DEBUG_IMX25_UART || \
1535				 DEBUG_IMX21_IMX27_UART || \
1536				 DEBUG_IMX31_UART || \
1537				 DEBUG_IMX35_UART || \
1538				 DEBUG_IMX50_UART || \
1539				 DEBUG_IMX51_UART || \
1540				 DEBUG_IMX53_UART ||\
1541				 DEBUG_IMX6Q_UART || \
1542				 DEBUG_IMX6SL_UART || \
1543				 DEBUG_IMX6SX_UART || \
1544				 DEBUG_IMX6UL_UART || \
1545				 DEBUG_IMX7D_UART
1546	default "debug/msm.S" if DEBUG_QCOM_UARTDM
1547	default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1548	default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1549	default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
1550	default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
1551	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1552	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1553	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1554	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1555	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1556	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1557	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2
1558	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1559	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1560	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1561	default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1562	default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1563	default "debug/sti.S" if DEBUG_STIH41X_ASC2
1564	default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1
1565	default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0
1566	default "debug/stm32.S" if DEBUG_STM32_UART
1567	default "debug/tegra.S" if DEBUG_TEGRA_UART
1568	default "debug/ux500.S" if DEBUG_UX500_UART
1569	default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1570	default "debug/vf.S" if DEBUG_VF_UART
1571	default "debug/vt8500.S" if DEBUG_VT8500_UART0
1572	default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1573	default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1574	default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1575	default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1576	default "mach/debug-macro.S"
1577
1578# Compatibility options for PL01x
1579config DEBUG_UART_PL01X
1580	bool
1581
1582# Compatibility options for 8250
1583config DEBUG_UART_8250
1584	def_bool ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC
1585
1586config DEBUG_UART_PHYS
1587	hex "Physical base address of debug UART"
1588	default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1589	default 0x01c28000 if DEBUG_SUNXI_UART0
1590	default 0x01c28400 if DEBUG_SUNXI_UART1
1591	default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1592	default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1593	default 0x01f02800 if DEBUG_SUNXI_R_UART
1594	default 0x02530c00 if DEBUG_KEYSTONE_UART0
1595	default 0x02531000 if DEBUG_KEYSTONE_UART1
1596	default 0x03010fe0 if ARCH_RPC
1597	default 0x07000000 if DEBUG_SUN9I_UART0
1598	default 0x09530000 if DEBUG_STIH418_SBC_ASC0
1599	default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1600				DEBUG_VEXPRESS_UART0_CA9
1601	default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1602	default 0x10124000 if DEBUG_RK3X_UART0
1603	default 0x10126000 if DEBUG_RK3X_UART1
1604	default 0x101f1000 if DEBUG_VERSATILE
1605	default 0x101fb000 if DEBUG_NOMADIK_UART
1606	default 0x10210000 if DEBUG_RV1108_UART2
1607	default 0x10220000 if DEBUG_RV1108_UART1
1608	default 0x10230000 if DEBUG_RV1108_UART0
1609	default 0x11002000 if DEBUG_MT8127_UART0
1610	default 0x11006000 if DEBUG_MT6589_UART0
1611	default 0x11009000 if DEBUG_MT8135_UART3
1612	default 0x16000000 if DEBUG_INTEGRATOR
1613	default 0x1600d000 if DEBUG_SD5203_UART
1614	default 0x18000300 if DEBUG_BCM_5301X
1615	default 0x18000400 if DEBUG_BCM_HR2
1616	default 0x18023000 if DEBUG_BCM_IPROC_UART3
1617	default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1618	default 0x1f221000 if DEBUG_MSTARV7_PMUART
1619	default 0x20001000 if DEBUG_HIP01_UART
1620	default 0x20060000 if DEBUG_RK29_UART0
1621	default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1622	default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1623	default 0x20201000 if DEBUG_BCM2835
1624	default 0x3e000000 if DEBUG_BCM_KONA_UART
1625	default 0x3f201000 if DEBUG_BCM2836
1626	default 0x40010000 if STM32MP1_DEBUG_UART
1627	default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
1628				STM32H7_DEBUG_UART
1629	default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1630	default 0x40081000 if DEBUG_LPC18XX_UART0
1631	default 0x40090000 if DEBUG_LPC32XX
1632	default 0x40100000 if DEBUG_PXA_UART1
1633	default 0x42000000 if DEBUG_GEMINI
1634	default 0x44e09000 if DEBUG_AM33XXUART1
1635	default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1636	default 0x48022000 if DEBUG_TI81XXUART2
1637	default 0x48024000 if DEBUG_TI81XXUART3
1638	default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1639				DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1640	default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1641				DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1642	default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1643	default 0x49020000 if DEBUG_OMAP3UART3
1644	default 0x49042000 if DEBUG_OMAP3UART4
1645	default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1646				DEBUG_S3C2410_UART0)
1647	default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1648				DEBUG_S3C2410_UART1)
1649	default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1650				DEBUG_S3C2410_UART2)
1651	default 0x78000000 if DEBUG_CNS3XXX
1652	default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1653	default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1654	default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1655	default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1656	default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1657	default 0x80010000 if DEBUG_ASM9260_UART
1658	default 0x80070000 if DEBUG_IMX23_UART
1659	default 0x80074000 if DEBUG_IMX28_UART
1660	default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1661	default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1662	default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1663	default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1664	default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1665	default 0xd0000000 if DEBUG_SPEAR3XX
1666	default 0xd0012000 if DEBUG_MVEBU_UART0
1667	default 0xc81004c0 if DEBUG_MESON_UARTAO
1668	default 0xd4017000 if DEBUG_MMP_UART2
1669	default 0xd4018000 if DEBUG_MMP_UART3
1670	default 0xe0000000 if DEBUG_SPEAR13XX
1671	default 0xe4007000 if DEBUG_HIP04_UART
1672	default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1673	default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1674	default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2
1675	default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1676	default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1677	default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1678	default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1679	default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1680	default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
1681	default 0xe8009000 if DEBUG_R7S9210_SCIF4
1682	default 0xf0000000 if DEBUG_DIGICOLOR_UA0
1683	default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1684	default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1685	default 0xf7fc9000 if DEBUG_BERLIN_UART
1686	default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1687	default 0xf8b00000 if DEBUG_HIX5HD2_UART
1688	default 0xf991e000 if DEBUG_QCOM_UARTDM
1689	default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1690	default 0xfcb00000 if DEBUG_HI3620_UART
1691	default 0xfd883000 if DEBUG_ALPINE_UART0
1692	default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1
1693	default 0xfe800000 if ARCH_IOP32X
1694	default 0xfed32000 if DEBUG_STIH41X_ASC2
1695	default 0xff690000 if DEBUG_RK32_UART2
1696	default 0xffc02000 if DEBUG_SOCFPGA_UART0
1697	default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1698	default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1699	default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1700	default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1701	default 0xfff36000 if DEBUG_HIGHBANK_UART
1702	default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1703	default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1704	default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1705	default 0xfffe8600 if DEBUG_BCM63XX_UART
1706	default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1707	default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1708	depends on ARCH_EP93XX || \
1709	        DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1710		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1711		DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1712		DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
1713		DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1714		DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1715		DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1716		DEBUG_RCAR_GEN2_SCIFA2 || \
1717		DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1718		DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1719		DEBUG_S3C64XX_UART || \
1720		DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1721		DEBUG_DIGICOLOR_UA0 || \
1722		DEBUG_AT91_UART || DEBUG_STM32_UART || \
1723		DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1724		DEBUG_STIH418_SBC_ASC0
1725
1726config DEBUG_UART_VIRT
1727	hex "Virtual base address of debug UART"
1728	default 0xc881f000 if DEBUG_RV1108_UART2
1729	default 0xc8821000 if DEBUG_RV1108_UART1
1730	default 0xc8912000 if DEBUG_RV1108_UART0
1731	default 0xe0010fe0 if ARCH_RPC
1732	default 0xf0010000 if DEBUG_ASM9260_UART
1733	default 0xf0100000 if DEBUG_DIGICOLOR_UA0
1734	default 0xf01fb000 if DEBUG_NOMADIK_UART
1735	default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1736	default 0xf0221000 if DEBUG_MSTARV7_PMUART
1737	default 0xf1000300 if DEBUG_BCM_5301X
1738	default 0xf1000400 if DEBUG_BCM_HR2
1739	default 0xf1002000 if DEBUG_MT8127_UART0
1740	default 0xf1006000 if DEBUG_MT6589_UART0
1741	default 0xf1009000 if DEBUG_MT8135_UART3
1742	default 0xf1023000 if DEBUG_BCM_IPROC_UART3
1743	default 0xf11f1000 if DEBUG_VERSATILE
1744	default 0xf1600000 if DEBUG_INTEGRATOR
1745	default 0xf1c28000 if DEBUG_SUNXI_UART0
1746	default 0xf1c28400 if DEBUG_SUNXI_UART1
1747	default 0xf1f02800 if DEBUG_SUNXI_R_UART
1748	default 0xf31004c0 if DEBUG_MESON_UARTAO
1749	default 0xf4090000 if DEBUG_LPC32XX
1750	default 0xf4200000 if DEBUG_GEMINI
1751	default 0xf6200000 if DEBUG_PXA_UART1
1752	default 0xf7000000 if DEBUG_SUN9I_UART0
1753	default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1754	default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1755				DEBUG_S3C2410_UART0)
1756	default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1757	default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1758	default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1759	default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1760				DEBUG_S3C2410_UART1)
1761	default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1762				DEBUG_S3C2410_UART2)
1763	default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1764	default 0xf7fc9000 if DEBUG_BERLIN_UART
1765	default 0xf8007000 if DEBUG_HIP04_UART
1766	default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1767	default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1768	default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1769	default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1770	default 0xf9530000 if DEBUG_STIH418_SBC_ASC0
1771	default 0xf9e09000 if DEBUG_AM33XXUART1
1772	default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1773	default 0xfa022000 if DEBUG_TI81XXUART2
1774	default 0xfa024000 if DEBUG_TI81XXUART3
1775	default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1776				DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1777	default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1778				DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1779	default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1780	default 0xfa71e000 if DEBUG_QCOM_UARTDM
1781	default 0xfb002000 if DEBUG_CNS3XXX
1782	default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1783	default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1784	default 0xfb020000 if DEBUG_OMAP3UART3
1785	default 0xfb042000 if DEBUG_OMAP3UART4
1786	default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1787	default 0xfcfe8600 if DEBUG_BCM63XX_UART
1788	default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1789	default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1
1790	default 0xfd883000 if DEBUG_ALPINE_UART0
1791	default 0xfdd32000 if DEBUG_STIH41X_ASC2
1792	default 0xfe010000 if STM32MP1_DEBUG_UART
1793	default 0xfe017000 if DEBUG_MMP_UART2
1794	default 0xfe018000 if DEBUG_MMP_UART3
1795	default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1796	default 0xfe300000 if DEBUG_BCM_KONA_UART
1797	default 0xfe800000 if ARCH_IOP32X
1798	default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1799	default 0xfeb24000 if DEBUG_RK3X_UART0
1800	default 0xfeb26000 if DEBUG_RK3X_UART1
1801	default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1802	default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1803	default 0xfec02000 if DEBUG_SOCFPGA_UART0
1804	default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1805	default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1806	default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1807	default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1808	default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1809	default 0xfec90000 if DEBUG_RK32_UART2
1810	default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1811	default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART
1812	default 0xfed60000 if DEBUG_RK29_UART0
1813	default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1814	default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1815	default 0xfedc0000 if DEBUG_EP93XX
1816	default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1817	default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1818	default 0xfec00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1819	default 0xfec00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1820	default 0xfef36000 if DEBUG_HIGHBANK_UART
1821	default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1822	default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1823	default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1824	default 0xffd01000 if DEBUG_HIP01_UART
1825	default DEBUG_UART_PHYS if !MMU
1826	depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1827		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1828		DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1829		DEBUG_S3C64XX_UART || \
1830		DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1831		DEBUG_DIGICOLOR_UA0 || \
1832		DEBUG_AT91_UART || DEBUG_STM32_UART || \
1833		DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1834		DEBUG_STIH418_SBC_ASC0
1835
1836config DEBUG_UART_8250_SHIFT
1837	int "Register offset shift for the 8250 debug UART"
1838	depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1839	default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1840		DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \
1841		DEBUG_OMAP7XXUART3
1842	default 3 if DEBUG_MSTARV7_PMUART
1843	default 2
1844
1845config DEBUG_UART_8250_WORD
1846	bool "Use 32-bit accesses for 8250 UART"
1847	depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1848	depends on DEBUG_UART_8250_SHIFT >= 2
1849	default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
1850		DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
1851		DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
1852		DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1853		DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \
1854		DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1855
1856config DEBUG_UART_8250_PALMCHIP
1857	bool "8250 UART is Palmchip BK-310x"
1858	depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1859	help
1860	  Palmchip provides a UART implementation compatible with 16550
1861	  except for having a different register layout.  Say Y here if
1862	  the debug UART is of this type.
1863
1864config DEBUG_UNCOMPRESS
1865	bool "Enable decompressor debugging via DEBUG_LL output"
1866	depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1867	depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1868		     (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1869		     !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING
1870	help
1871	  This option influences the normal decompressor output for
1872	  multiplatform kernels.  Normally, multiplatform kernels disable
1873	  decompressor output because it is not possible to know where to
1874	  send the decompressor output.
1875
1876	  When this option is set, the selected DEBUG_LL output method
1877	  will be re-used for normal decompressor output on multiplatform
1878	  kernels.
1879	  
1880
1881config UNCOMPRESS_INCLUDE
1882	string
1883	default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1884					PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1885	default "mach/uncompress.h"
1886
1887config EARLY_PRINTK
1888	bool "Early printk"
1889	depends on DEBUG_LL
1890	help
1891	  Say Y here if you want to have an early console using the
1892	  kernel low-level debugging functions. Add earlyprintk to your
1893	  kernel parameters to enable this console.
1894
 
 
 
 
 
 
 
 
1895config ARM_KPROBES_TEST
1896	tristate "Kprobes test module"
1897	depends on KPROBES && MODULES
1898	help
1899	  Perform tests of kprobes API and instruction set simulation.
1900
1901config PID_IN_CONTEXTIDR
1902	bool "Write the current PID to the CONTEXTIDR register"
1903	depends on CPU_COPY_V6
1904	help
1905	  Enabling this option causes the kernel to write the current PID to
1906	  the PROCID field of the CONTEXTIDR register, at the expense of some
1907	  additional instructions during context switch. Say Y here only if you
1908	  are planning to use hardware trace tools with this kernel.
1909
1910source "drivers/hwtracing/coresight/Kconfig"