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Linus Torvalds1da177e2005-04-16 15:20:36 -07001menu "Kernel hacking"
2
3source "lib/Kconfig.debug"
4
Russell King1fd15b82013-10-23 16:13:02 +01005config ARM_PTDUMP
6 bool "Export kernel pagetable layout to userspace via debugfs"
7 depends on DEBUG_KERNEL
8 select DEBUG_FS
9 ---help---
10 Say Y here if you want to show the kernel pagetable layout in a
11 debugfs file. This information is only useful for kernel developers
12 who are working in architecture specific areas of the kernel.
13 It is probably not a good idea to enable this feature in a production
14 kernel.
15 If in doubt, say "N"
16
Nicolas Pitre087aaff2010-09-22 18:34:36 -040017config STRICT_DEVMEM
18 bool "Filter access to /dev/mem"
19 depends on MMU
20 ---help---
21 If this option is disabled, you allow userspace (root) access to all
22 of memory, including kernel and userspace memory. Accidental
23 access to this is obviously disastrous, but specific access can
24 be used by people debugging the kernel.
25
26 If this option is switched on, the /dev/mem file only allows
27 userspace access to memory mapped peripherals.
28
29 If in doubt, say Y.
30
Catalin Marinasadf8b372009-02-12 13:56:34 +010031# RMK wants arm kernels compiled with frame pointers or stack unwinding.
Linus Torvalds1da177e2005-04-16 15:20:36 -070032# If you know what you are doing and are willing to live without stack
33# traces, you can get a slightly smaller kernel by setting this option to
34# n, but then RMK will have to kill you ;).
35config FRAME_POINTER
36 bool
Catalin Marinas16c79652009-07-24 12:33:02 +010037 depends on !THUMB2_KERNEL
Rabin Vincent0e341af2010-11-06 23:03:53 +053038 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 help
40 If you say N here, the resulting kernel will be slightly smaller and
Catalin Marinasadf8b372009-02-12 13:56:34 +010041 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
42 when a problem occurs with the kernel, the information that is
43 reported is severely limited.
44
45config ARM_UNWIND
Russell King4a50bfe2010-12-05 23:06:22 +000046 bool "Enable stack unwinding support (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -080047 depends on AEABI
Catalin Marinasadf8b372009-02-12 13:56:34 +010048 default y
49 help
50 This option enables stack unwinding support in the kernel
51 using the information automatically generated by the
52 compiler. The resulting kernel image is slightly bigger but
53 the performance is not affected. Currently, this feature
54 only works with EABI compilers. If unsure say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
Rabin Vincent09bfafa2010-08-10 19:32:37 +010056config OLD_MCOUNT
57 bool
58 depends on FUNCTION_TRACER && FRAME_POINTER
59 default y
60
Linus Torvalds1da177e2005-04-16 15:20:36 -070061config DEBUG_USER
62 bool "Verbose user fault messages"
63 help
64 When a user program crashes due to an exception, the kernel can
65 print a brief message explaining what the problem was. This is
66 sometimes helpful for debugging but serves no purpose on a
67 production system. Most people should say N here.
68
69 In addition, you need to pass user_debug=N on the kernel command
70 line to enable this feature. N consists of the sum of:
71
72 1 - undefined instruction events
73 2 - system calls
74 4 - invalid data aborts
75 8 - SIGSEGV faults
76 16 - SIGBUS faults
77
Linus Torvalds1da177e2005-04-16 15:20:36 -070078# These options are only for real kernel hackers who want to get their hands dirty.
79config DEBUG_LL
Will Deacon4f5ef922011-09-01 19:04:44 +010080 bool "Kernel low-level debugging functions (read help!)"
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 depends on DEBUG_KERNEL
82 help
Russell King35efb602005-09-09 15:57:17 +010083 Say Y here to include definitions of printascii, printch, printhex
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 in the kernel. This is helpful if you are debugging code that
85 executes before the console is initialized.
86
Will Deacon4f5ef922011-09-01 19:04:44 +010087 Note that selecting this option will limit the kernel to a single
88 UART definition, as specified below. Attempting to boot the kernel
89 image on a different platform *will not work*, so this option should
90 not be enabled for kernels that are intended to be portable.
91
Will Deacon17916b22011-09-01 18:58:51 +010092choice
93 prompt "Kernel low-level debugging port"
94 depends on DEBUG_LL
95
Jean-Christophe PLAGNIOL-VILLARD13079a72011-11-02 01:43:31 +080096 config AT91_DEBUG_LL_DBGU0
97 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
98 depends on HAVE_AT91_DBGU0
99
100 config AT91_DEBUG_LL_DBGU1
Jean-Christophe PLAGNIOL-VILLARD9918cea2012-01-26 14:07:09 +0100101 bool "Kernel low-level debugging on 9263 and 9g45"
Jean-Christophe PLAGNIOL-VILLARD13079a72011-11-02 01:43:31 +0800102 depends on HAVE_AT91_DBGU1
103
Nicolas Ferre2dc850b2014-09-15 18:15:54 +0200104 config AT91_DEBUG_LL_DBGU2
105 bool "Kernel low-level debugging on sama5d4"
106 depends on HAVE_AT91_DBGU2
107
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600108 config DEBUG_BCM2835
109 bool "Kernel low-level debugging on BCM2835 PL011 UART"
110 depends on ARCH_BCM2835
Russell King5c972af2013-07-07 12:32:16 +0100111 select DEBUG_UART_PL01X
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600112
Hauke Mehrtens06580272014-02-04 00:01:44 +0100113 config DEBUG_BCM_5301X
114 bool "Kernel low-level debugging on BCM5301X UART1"
115 depends on ARCH_BCM_5301X
116 select DEBUG_UART_PL01X
117
Christian Daudt753d1242013-12-23 09:00:01 +0100118 config DEBUG_BCM_KONA_UART
119 bool "Kernel low-level debugging messages via BCM KONA UART"
Florian Fainelli7aa20772014-03-06 09:45:55 -0800120 depends on ARCH_BCM_MOBILE
Christian Daudt753d1242013-12-23 09:00:01 +0100121 select DEBUG_UART_8250
122 help
123 Say Y here if you want kernel low-level debugging support
124 on Broadcom SoC platforms.
125 This low level debug works for Broadcom
126 mobile SoCs in the Kona family of chips (e.g. bcm28155,
127 bcm11351, etc...)
128
Florian Fainellib51312b2014-01-08 09:19:50 -0800129 config DEBUG_BCM63XX
130 bool "Kernel low-level debugging on BCM63XX UART"
131 depends on ARCH_BCM_63XX
132 select DEBUG_UART_BCM63XX
133
Sebastian Hesselbarthcaad0b42013-09-09 14:10:54 +0200134 config DEBUG_BERLIN_UART
135 bool "Marvell Berlin SoC Debug UART"
136 depends on ARCH_BERLIN
137 select DEBUG_UART_8250
138 help
139 Say Y here if you want kernel low-level debugging support
140 on Marvell Berlin SoC based platforms.
141
Stephen Boyd164acf92011-09-22 20:28:35 +0100142 config DEBUG_CLPS711X_UART1
143 bool "Kernel low-level debugging messages via UART1"
144 depends on ARCH_CLPS711X
145 help
146 Say Y here if you want the debug print routines to direct
147 their output to the first serial port on these devices.
Will Deacon17916b22011-09-01 18:58:51 +0100148
149 config DEBUG_CLPS711X_UART2
150 bool "Kernel low-level debugging messages via UART2"
151 depends on ARCH_CLPS711X
152 help
153 Say Y here if you want the debug print routines to direct
154 their output to the second serial port on these devices.
Will Deacon17916b22011-09-01 18:58:51 +0100155
Arnd Bergmann29c9b7b2013-03-14 16:02:59 +0100156 config DEBUG_CNS3XXX
157 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
158 depends on ARCH_CNS3XXX
Krzysztof Hałasab1251702014-09-16 12:35:10 +0200159 select DEBUG_UART_8250
Arnd Bergmann29c9b7b2013-03-14 16:02:59 +0100160 help
161 Say Y here if you want the debug print routines to direct
162 their output to the CNS3xxx UART0.
163
Uwe Kleine-König477099f2012-03-22 10:29:23 +0100164 config DEBUG_DAVINCI_DA8XX_UART1
165 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
166 depends on ARCH_DAVINCI_DA8XX
Russell King97bd1a42013-07-07 16:18:34 +0100167 select DEBUG_UART_8250
Uwe Kleine-König477099f2012-03-22 10:29:23 +0100168 help
169 Say Y here if you want the debug print routines to direct
170 their output to UART1 serial port on DaVinci DA8XX devices.
171
172 config DEBUG_DAVINCI_DA8XX_UART2
173 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
174 depends on ARCH_DAVINCI_DA8XX
Russell King97bd1a42013-07-07 16:18:34 +0100175 select DEBUG_UART_8250
Uwe Kleine-König477099f2012-03-22 10:29:23 +0100176 help
177 Say Y here if you want the debug print routines to direct
178 their output to UART2 serial port on DaVinci DA8XX devices.
179
180 config DEBUG_DAVINCI_DMx_UART0
181 bool "Kernel low-level debugging on DaVinci DMx using UART0"
182 depends on ARCH_DAVINCI_DMx
Russell King97bd1a42013-07-07 16:18:34 +0100183 select DEBUG_UART_8250
Uwe Kleine-König477099f2012-03-22 10:29:23 +0100184 help
185 Say Y here if you want the debug print routines to direct
186 their output to UART0 serial port on DaVinci DMx devices.
187
Nick Bowleraaf5e0b2012-11-05 16:45:49 -0500188 config DEBUG_ZYNQ_UART0
189 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
190 depends on ARCH_ZYNQ
191 help
192 Say Y here if you want the debug print routines to direct
193 their output to UART0 on the Zynq platform.
194
195 config DEBUG_ZYNQ_UART1
196 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
197 depends on ARCH_ZYNQ
198 help
199 Say Y here if you want the debug print routines to direct
200 their output to UART1 on the Zynq platform.
201
202 If you have a ZC702 board and want early boot messages to
203 appear on the USB serial adaptor, select this option.
204
Russell Kinge76f4752011-11-23 17:44:05 +0000205 config DEBUG_DC21285_PORT
206 bool "Kernel low-level debugging messages via footbridge serial port"
207 depends on FOOTBRIDGE
208 help
209 Say Y here if you want the debug print routines to direct
210 their output to the serial port in the DC21285 (Footbridge).
211
212 config DEBUG_FOOTBRIDGE_COM1
213 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
214 depends on FOOTBRIDGE
215 help
216 Say Y here if you want the debug print routines to direct
217 their output to the 8250 at PCI COM1.
218
Haojian Zhuang8d258be2013-08-24 06:58:39 +0100219 config DEBUG_HI3620_UART
220 bool "Hisilicon HI3620 Debug UART"
221 depends on ARCH_HI3xxx
222 select DEBUG_UART_PL01X
223 help
224 Say Y here if you want kernel low-level debugging support
225 on HI3620 UART.
226
227 config DEBUG_HI3716_UART
228 bool "Hisilicon Hi3716 Debug UART"
229 depends on ARCH_HI3xxx
230 select DEBUG_UART_PL01X
231 help
232 Say Y here if you want kernel low-level debugging support
233 on HI3716 UART.
234
Rob Herring220e6cf2011-06-07 10:02:55 -0500235 config DEBUG_HIGHBANK_UART
236 bool "Kernel low-level debugging messages via Highbank UART"
237 depends on ARCH_HIGHBANK
Russell King5c972af2013-07-07 12:32:16 +0100238 select DEBUG_UART_PL01X
Rob Herring220e6cf2011-06-07 10:02:55 -0500239 help
240 Say Y here if you want the debug print routines to direct
241 their output to the UART on Highbank based devices.
242
Haojian Zhuangc9a1df42013-12-20 15:01:41 +0800243 config DEBUG_HIP04_UART
244 bool "Hisilicon HiP04 Debug UART"
245 depends on ARCH_HIP04
246 select DEBUG_UART_8250
247 help
248 Say Y here if you want kernel low-level debugging support
249 on HIP04 UART.
250
Olof Johansson37bdaf82014-09-23 22:21:54 -0700251 config DEBUG_HIX5HD2_UART
252 bool "Hisilicon Hix5hd2 Debug UART"
253 depends on ARCH_HIX5HD2
Catalin Marinas93fd03a2009-12-09 10:02:18 +0000254 select DEBUG_UART_PL01X
255 help
Olof Johansson37bdaf82014-09-23 22:21:54 -0700256 Say Y here if you want kernel low-level debugging support
257 on Hix5hd2 UART.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258
Shawn Guof350b862011-08-19 05:56:59 +0100259 config DEBUG_IMX1_UART
260 bool "i.MX1 Debug UART"
261 depends on SOC_IMX1
262 help
263 Say Y here if you want kernel low-level debugging support
264 on i.MX1.
265
266 config DEBUG_IMX23_UART
267 bool "i.MX23 Debug UART"
268 depends on SOC_IMX23
Russell King5c972af2013-07-07 12:32:16 +0100269 select DEBUG_UART_PL01X
Shawn Guof350b862011-08-19 05:56:59 +0100270 help
271 Say Y here if you want kernel low-level debugging support
272 on i.MX23.
273
274 config DEBUG_IMX25_UART
275 bool "i.MX25 Debug UART"
276 depends on SOC_IMX25
277 help
278 Say Y here if you want kernel low-level debugging support
279 on i.MX25.
280
281 config DEBUG_IMX21_IMX27_UART
282 bool "i.MX21 and i.MX27 Debug UART"
283 depends on SOC_IMX21 || SOC_IMX27
284 help
285 Say Y here if you want kernel low-level debugging support
286 on i.MX21 or i.MX27.
287
288 config DEBUG_IMX28_UART
289 bool "i.MX28 Debug UART"
290 depends on SOC_IMX28
Russell King5c972af2013-07-07 12:32:16 +0100291 select DEBUG_UART_PL01X
Shawn Guof350b862011-08-19 05:56:59 +0100292 help
293 Say Y here if you want kernel low-level debugging support
294 on i.MX28.
295
Shawn Guo4ad625d2012-12-12 18:54:01 +0800296 config DEBUG_IMX31_UART
297 bool "i.MX31 Debug UART"
298 depends on SOC_IMX31
Shawn Guof350b862011-08-19 05:56:59 +0100299 help
300 Say Y here if you want kernel low-level debugging support
Shawn Guo4ad625d2012-12-12 18:54:01 +0800301 on i.MX31.
302
303 config DEBUG_IMX35_UART
304 bool "i.MX35 Debug UART"
305 depends on SOC_IMX35
306 help
307 Say Y here if you want kernel low-level debugging support
308 on i.MX35.
Shawn Guof350b862011-08-19 05:56:59 +0100309
Greg Ungererad364a72013-10-29 15:15:51 +1000310 config DEBUG_IMX50_UART
311 bool "i.MX50 Debug UART"
312 depends on SOC_IMX50
313 help
314 Say Y here if you want kernel low-level debugging support
315 on i.MX50.
316
Shawn Guof350b862011-08-19 05:56:59 +0100317 config DEBUG_IMX51_UART
318 bool "i.MX51 Debug UART"
319 depends on SOC_IMX51
320 help
321 Say Y here if you want kernel low-level debugging support
322 on i.MX51.
323
Fabio Estevam7356420c2013-01-22 10:40:55 -0200324 config DEBUG_IMX53_UART
325 bool "i.MX53 Debug UART"
326 depends on SOC_IMX53
Shawn Guof350b862011-08-19 05:56:59 +0100327 help
328 Say Y here if you want kernel low-level debugging support
Fabio Estevam7356420c2013-01-22 10:40:55 -0200329 on i.MX53.
Shawn Guof350b862011-08-19 05:56:59 +0100330
Shawn Guo49c9e602012-10-08 13:44:29 +0800331 config DEBUG_IMX6Q_UART
Shawn Guo3c03a2f2013-04-01 22:13:32 +0800332 bool "i.MX6Q/DL Debug UART"
Dirk Behme785d7fa2012-04-27 10:15:45 +0200333 depends on SOC_IMX6Q
334 help
335 Say Y here if you want kernel low-level debugging support
Shawn Guo3c03a2f2013-04-01 22:13:32 +0800336 on i.MX6Q/DL.
Shawn Guobac89d72011-10-02 15:09:11 +0800337
Shawn Guo34e8a162013-05-03 11:21:03 +0800338 config DEBUG_IMX6SL_UART
339 bool "i.MX6SL Debug UART"
340 depends on SOC_IMX6SL
341 help
342 Say Y here if you want kernel low-level debugging support
343 on i.MX6SL.
344
Shawn Guo74368e82014-05-11 21:53:48 +0800345 config DEBUG_IMX6SX_UART
346 bool "i.MX6SX Debug UART"
347 depends on SOC_IMX6SX
348 help
349 Say Y here if you want kernel low-level debugging support
350 on i.MX6SX.
351
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400352 config DEBUG_KEYSTONE_UART0
353 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
354 depends on ARCH_KEYSTONE
Russell Kingf2acf002013-07-07 16:05:49 +0100355 select DEBUG_UART_8250
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400356 help
357 Say Y here if you want the debug print routines to direct
358 their output to UART0 serial port on KEYSTONE2 devices.
359
360 config DEBUG_KEYSTONE_UART1
361 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
362 depends on ARCH_KEYSTONE
Russell Kingf2acf002013-07-07 16:05:49 +0100363 select DEBUG_UART_8250
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400364 help
365 Say Y here if you want the debug print routines to direct
366 their output to UART1 serial port on KEYSTONE2 devices.
367
Carlo Caioned8a00912014-09-09 21:38:00 +0200368 config DEBUG_MESON_UARTAO
369 bool "Kernel low-level debugging via Meson6 UARTAO"
370 depends on ARCH_MESON
371 help
372 Say Y here if you want kernel low-lever debugging support
373 on Amlogic Meson6 based platforms on the UARTAO.
374
Haojian Zhuangfa4cd2a2012-08-10 23:49:41 +0800375 config DEBUG_MMP_UART2
376 bool "Kernel low-level debugging message via MMP UART2"
377 depends on ARCH_MMP
Russell King4a0036472013-07-06 23:13:15 +0100378 select DEBUG_UART_8250
Haojian Zhuangfa4cd2a2012-08-10 23:49:41 +0800379 help
380 Say Y here if you want kernel low-level debugging support
381 on MMP UART2.
382
383 config DEBUG_MMP_UART3
384 bool "Kernel low-level debugging message via MMP UART3"
385 depends on ARCH_MMP
Russell King4a0036472013-07-06 23:13:15 +0100386 select DEBUG_UART_8250
Haojian Zhuangfa4cd2a2012-08-10 23:49:41 +0800387 help
388 Say Y here if you want kernel low-level debugging support
389 on MMP UART3.
390
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +0300391 config DEBUG_MSM_UART
392 bool "Kernel low-level debugging messages via MSM UART"
393 depends on ARCH_MSM
Stephen Boyd650e3f02011-11-08 10:33:03 -0800394 help
395 Say Y here if you want the debug print routines to direct
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +0300396 their output to the serial port on MSM devices.
Stephen Boyd650e3f02011-11-08 10:33:03 -0800397
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +0300398 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE #
399 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
400 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
401 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
Stephen Boyd650e3f02011-11-08 10:33:03 -0800402
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +0300403 MSM7X30 0xaca00000 0xe1000000 UART1
404 MSM7X30 0xacb00000 0xe1000000 UART2
405 MSM7X30 0xacc00000 0xe1000000 UART3
Stephen Boyd650e3f02011-11-08 10:33:03 -0800406
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +0300407 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
408 options based on your needs.
Stephen Boyda3d3ef92011-11-08 10:33:04 -0800409
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +0300410 config DEBUG_QCOM_UARTDM
411 bool "Kernel low-level debugging messages via QCOM UARTDM"
412 depends on ARCH_QCOM
Stephen Boyda3d3ef92011-11-08 10:33:04 -0800413 help
414 Say Y here if you want the debug print routines to direct
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +0300415 their output to the serial port on Qualcomm devices.
Stephen Boyda3d3ef92011-11-08 10:33:04 -0800416
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +0300417 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE
Georgi Djakov2f528dd2014-05-23 18:12:32 +0300418 APQ8084 0xf995e000 0xfa75e000
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +0300419 MSM8X60 0x19c40000 0xf0040000
420 MSM8960 0x16440000 0xf0040000
421 MSM8974 0xf991e000 0xfa71e000
422
423 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
424 options based on your needs.
Rohit Vaswani3c8828f2013-10-17 22:15:35 +0100425
Rob Herringbfd5af92012-09-02 14:41:34 -0500426 config DEBUG_MVEBU_UART
Thomas Petazzonic2804cd2013-06-05 09:05:00 +0200427 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
Rob Herringbfd5af92012-09-02 14:41:34 -0500428 depends on ARCH_MVEBU
Russell King4a0036472013-07-06 23:13:15 +0100429 select DEBUG_UART_8250
Rob Herringbfd5af92012-09-02 14:41:34 -0500430 help
431 Say Y here if you want kernel low-level debugging support
432 on MVEBU based platforms.
433
Thomas Petazzonic2804cd2013-06-05 09:05:00 +0200434 This option should be used with the old bootloaders
435 that left the internal registers mapped at
436 0xd0000000. As of today, this is the case on
437 platforms such as the Globalscale Mirabox or the
438 Plathome OpenBlocks AX3, when using the original
439 bootloader.
440
441 If the wrong DEBUG_MVEBU_UART* option is selected,
442 when u-boot hands over to the kernel, the system
443 silently crashes, with no serial output at all.
444
445 config DEBUG_MVEBU_UART_ALTERNATE
446 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
447 depends on ARCH_MVEBU
Russell King4a0036472013-07-06 23:13:15 +0100448 select DEBUG_UART_8250
Thomas Petazzonic2804cd2013-06-05 09:05:00 +0200449 help
450 Say Y here if you want kernel low-level debugging support
451 on MVEBU based platforms.
452
453 This option should be used with the new bootloaders
454 that remap the internal registers at 0xf1000000.
455
456 If the wrong DEBUG_MVEBU_UART* option is selected,
457 when u-boot hands over to the kernel, the system
458 silently crashes, with no serial output at all.
459
Shawn Guoc7c3eac2013-05-12 17:22:17 +0800460 config DEBUG_VF_UART
461 bool "Vybrid UART"
462 depends on SOC_VF610
463 help
464 Say Y here if you want kernel low-level debugging support
465 on Vybrid based platforms.
466
Linus Walleij266c3472013-02-27 22:39:57 +0100467 config DEBUG_NOMADIK_UART
468 bool "Kernel low-level debugging messages via NOMADIK UART"
469 depends on ARCH_NOMADIK
Russell King5c972af2013-07-07 12:32:16 +0100470 select DEBUG_UART_PL01X
Linus Walleij266c3472013-02-27 22:39:57 +0100471 help
472 Say Y here if you want kernel low-level debugging support
473 on NOMADIK based platforms.
474
Daniel Tang9851ca52013-06-11 18:40:17 +1000475 config DEBUG_NSPIRE_CLASSIC_UART
476 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
477 depends on ARCH_NSPIRE
Russell King4a0036472013-07-06 23:13:15 +0100478 select DEBUG_UART_8250
Daniel Tang9851ca52013-06-11 18:40:17 +1000479 help
480 Say Y here if you want kernel low-level debugging support
481 on TI-NSPIRE classic models.
482
483 config DEBUG_NSPIRE_CX_UART
484 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
485 depends on ARCH_NSPIRE
Russell King5c972af2013-07-07 12:32:16 +0100486 select DEBUG_UART_PL01X
Daniel Tang9851ca52013-06-11 18:40:17 +1000487 help
488 Say Y here if you want kernel low-level debugging support
489 on TI-NSPIRE CX models.
490
Russell Kingcce278d2013-07-06 14:23:30 +0100491 config DEBUG_OMAP2UART1
492 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
Tony Lindgren808b7e02013-01-11 11:24:19 -0800493 depends on ARCH_OMAP2PLUS
Russell Kingcce278d2013-07-06 14:23:30 +0100494 select DEBUG_OMAP2PLUS_UART
Tony Lindgren808b7e02013-01-11 11:24:19 -0800495 help
Russell Kingcce278d2013-07-06 14:23:30 +0100496 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
497 omap3 torpedo and 3530 lv som.
498
499 config DEBUG_OMAP2UART2
500 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
501 depends on ARCH_OMAP2PLUS
502 select DEBUG_OMAP2PLUS_UART
503
504 config DEBUG_OMAP2UART3
505 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
506 depends on ARCH_OMAP2PLUS
507 select DEBUG_OMAP2PLUS_UART
508
509 config DEBUG_OMAP3UART3
510 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
511 depends on ARCH_OMAP2PLUS
512 select DEBUG_OMAP2PLUS_UART
513 help
514 This covers at least cm_t3x, beagle, crane, devkit8000,
515 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
516 and 3517evm.
517
518 config DEBUG_OMAP4UART3
519 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
520 depends on ARCH_OMAP2PLUS
521 select DEBUG_OMAP2PLUS_UART
522
523 config DEBUG_OMAP3UART4
524 bool "Kernel low-level debugging messages via OMAP36XX UART4"
525 depends on ARCH_OMAP2PLUS
526 select DEBUG_OMAP2PLUS_UART
527
528 config DEBUG_OMAP4UART4
529 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
530 depends on ARCH_OMAP2PLUS
531 select DEBUG_OMAP2PLUS_UART
532
533 config DEBUG_TI81XXUART1
534 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
535 depends on ARCH_OMAP2PLUS
536 select DEBUG_OMAP2PLUS_UART
537
538 config DEBUG_TI81XXUART2
539 bool "Kernel low-level debugging messages via TI81XX UART2"
540 depends on ARCH_OMAP2PLUS
541 select DEBUG_OMAP2PLUS_UART
542
543 config DEBUG_TI81XXUART3
544 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
545 depends on ARCH_OMAP2PLUS
546 select DEBUG_OMAP2PLUS_UART
547
548 config DEBUG_AM33XXUART1
549 bool "Kernel low-level debugging messages via AM33XX UART1"
550 depends on ARCH_OMAP2PLUS
551 select DEBUG_OMAP2PLUS_UART
552
553 config DEBUG_ZOOM_UART
554 bool "Kernel low-level debugging messages via Zoom2/3 UART"
555 depends on ARCH_OMAP2PLUS
556 select DEBUG_OMAP2PLUS_UART
Tony Lindgren808b7e02013-01-11 11:24:19 -0800557
Rob Herring59bba2a2012-09-06 14:14:46 -0500558 config DEBUG_PICOXCELL_UART
559 depends on ARCH_PICOXCELL
560 bool "Use PicoXcell UART for low-level debug"
Russell King0b4cccb2013-07-07 11:42:46 +0100561 select DEBUG_UART_8250
Rob Herring59bba2a2012-09-06 14:14:46 -0500562 help
563 Say Y here if you want kernel low-level debugging support
564 on PicoXcell based platforms.
565
Haojian Zhuang0a43cd3b2013-04-10 11:17:04 +0800566 config DEBUG_PXA_UART1
567 depends on ARCH_PXA
568 bool "Use PXA UART1 for low-level debug"
Russell King4a0036472013-07-06 23:13:15 +0100569 select DEBUG_UART_8250
Haojian Zhuang0a43cd3b2013-04-10 11:17:04 +0800570 help
571 Say Y here if you want kernel low-level debugging support
572 on PXA UART1.
573
Russell Kinge76f4752011-11-23 17:44:05 +0000574 config DEBUG_REALVIEW_STD_PORT
575 bool "RealView Default UART"
576 depends on ARCH_REALVIEW
Russell King5c972af2013-07-07 12:32:16 +0100577 select DEBUG_UART_PL01X
Russell Kinge76f4752011-11-23 17:44:05 +0000578 help
579 Say Y here if you want the debug print routines to direct
580 their output to the serial port on RealView EB, PB11MP, PBA8
581 and PBX platforms.
582
583 config DEBUG_REALVIEW_PB1176_PORT
584 bool "RealView PB1176 UART"
585 depends on MACH_REALVIEW_PB1176
Russell King5c972af2013-07-07 12:32:16 +0100586 select DEBUG_UART_PL01X
Russell Kinge76f4752011-11-23 17:44:05 +0000587 help
588 Say Y here if you want the debug print routines to direct
589 their output to the standard serial port on the RealView
590 PB1176 platform.
591
Russell Kingcce278d2013-07-06 14:23:30 +0100592 config DEBUG_RK29_UART0
593 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
Heiko Stuebner38bd6892013-05-28 22:13:52 +0200594 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100595 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100596 help
597 Say Y here if you want kernel low-level debugging support
598 on Rockchip based platforms.
599
600 config DEBUG_RK29_UART1
601 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
602 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100603 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100604 help
605 Say Y here if you want kernel low-level debugging support
606 on Rockchip based platforms.
607
608 config DEBUG_RK29_UART2
609 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
610 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100611 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100612 help
613 Say Y here if you want kernel low-level debugging support
614 on Rockchip based platforms.
615
616 config DEBUG_RK3X_UART0
Heiko Stuebneraa9c4f72014-07-16 17:08:14 +0200617 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
Russell Kingcce278d2013-07-06 14:23:30 +0100618 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100619 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100620 help
621 Say Y here if you want kernel low-level debugging support
622 on Rockchip based platforms.
623
624 config DEBUG_RK3X_UART1
Heiko Stuebneraa9c4f72014-07-16 17:08:14 +0200625 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
Russell Kingcce278d2013-07-06 14:23:30 +0100626 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100627 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100628 help
629 Say Y here if you want kernel low-level debugging support
630 on Rockchip based platforms.
631
632 config DEBUG_RK3X_UART2
Heiko Stuebneraa9c4f72014-07-16 17:08:14 +0200633 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
Russell Kingcce278d2013-07-06 14:23:30 +0100634 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100635 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100636 help
637 Say Y here if you want kernel low-level debugging support
638 on Rockchip based platforms.
639
640 config DEBUG_RK3X_UART3
Heiko Stuebneraa9c4f72014-07-16 17:08:14 +0200641 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
Russell Kingcce278d2013-07-06 14:23:30 +0100642 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100643 select DEBUG_UART_8250
Heiko Stuebner38bd6892013-05-28 22:13:52 +0200644 help
645 Say Y here if you want kernel low-level debugging support
646 on Rockchip based platforms.
647
Heiko Stuebnerefd02ee2014-06-28 13:31:17 +0200648 config DEBUG_RK32_UART2
649 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
650 depends on ARCH_ROCKCHIP
651 select DEBUG_UART_8250
652 help
653 Say Y here if you want kernel low-level debugging support
654 on Rockchip RK32xx based platforms.
655
Russell Kinge76f4752011-11-23 17:44:05 +0000656 config DEBUG_S3C_UART0
657 depends on PLAT_SAMSUNG
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100658 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
Heiko Stuebner1899de22014-05-16 06:59:18 +0900659 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
Tomasz Figa7bab7d9e2014-07-03 14:39:41 +0200660 select DEBUG_S5PV210_UART if ARCH_S5PV210
Sachin Kamat5cc8a012014-07-05 06:27:45 +0900661 bool "Use Samsung S3C UART 0 for low-level debug"
Russell Kinge76f4752011-11-23 17:44:05 +0000662 help
663 Say Y here if you want the debug print routines to direct
664 their output to UART 0. The port must have been initialised
665 by the boot-loader before use.
666
Russell Kinge76f4752011-11-23 17:44:05 +0000667 config DEBUG_S3C_UART1
668 depends on PLAT_SAMSUNG
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100669 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
Heiko Stuebner1899de22014-05-16 06:59:18 +0900670 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
Tomasz Figa7bab7d9e2014-07-03 14:39:41 +0200671 select DEBUG_S5PV210_UART if ARCH_S5PV210
Sachin Kamat5cc8a012014-07-05 06:27:45 +0900672 bool "Use Samsung S3C UART 1 for low-level debug"
Russell Kinge76f4752011-11-23 17:44:05 +0000673 help
674 Say Y here if you want the debug print routines to direct
675 their output to UART 1. The port must have been initialised
676 by the boot-loader before use.
677
Russell Kinge76f4752011-11-23 17:44:05 +0000678 config DEBUG_S3C_UART2
679 depends on PLAT_SAMSUNG
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100680 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
Heiko Stuebner1899de22014-05-16 06:59:18 +0900681 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
Tomasz Figa7bab7d9e2014-07-03 14:39:41 +0200682 select DEBUG_S5PV210_UART if ARCH_S5PV210
Sachin Kamat5cc8a012014-07-05 06:27:45 +0900683 bool "Use Samsung S3C UART 2 for low-level debug"
Russell Kinge76f4752011-11-23 17:44:05 +0000684 help
685 Say Y here if you want the debug print routines to direct
686 their output to UART 2. The port must have been initialised
687 by the boot-loader before use.
688
Olof Johansson5fa23dd2012-11-22 14:24:04 +0900689 config DEBUG_S3C_UART3
Tomasz Figa7bab7d9e2014-07-03 14:39:41 +0200690 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
691 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
692 select DEBUG_S5PV210_UART if ARCH_S5PV210
Sachin Kamat5cc8a012014-07-05 06:27:45 +0900693 bool "Use Samsung S3C UART 3 for low-level debug"
Olof Johansson5fa23dd2012-11-22 14:24:04 +0900694 help
695 Say Y here if you want the debug print routines to direct
696 their output to UART 3. The port must have been initialised
697 by the boot-loader before use.
698
Heiko Stuebnerdaf67df2014-05-16 06:59:18 +0900699 config DEBUG_S3C2410_UART0
700 depends on ARCH_S3C24XX
701 select DEBUG_S3C2410_UART
702 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
703 help
704 Say Y here if you want the debug print routines to direct
705 their output to UART 0. The port must have been initialised
706 by the boot-loader before use.
707
708 config DEBUG_S3C2410_UART1
709 depends on ARCH_S3C24XX
710 select DEBUG_S3C2410_UART
711 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
712 help
713 Say Y here if you want the debug print routines to direct
714 their output to UART 1. The port must have been initialised
715 by the boot-loader before use.
716
717 config DEBUG_S3C2410_UART2
718 depends on ARCH_S3C24XX
719 select DEBUG_S3C2410_UART
720 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
721 help
722 Say Y here if you want the debug print routines to direct
723 their output to UART 2. The port must have been initialised
724 by the boot-loader before use.
725
Rob Herring6111bf72012-09-06 14:11:28 -0500726 config DEBUG_SOCFPGA_UART
727 depends on ARCH_SOCFPGA
728 bool "Use SOCFPGA UART for low-level debug"
Russell King0b4cccb2013-07-07 11:42:46 +0100729 select DEBUG_UART_8250
Rob Herring6111bf72012-09-06 14:11:28 -0500730 help
731 Say Y here if you want kernel low-level debugging support
732 on SOCFPGA based platforms.
733
Stefan Roeseaa251152012-11-19 12:09:41 +0100734 config DEBUG_SUNXI_UART0
735 bool "Kernel low-level debugging messages via sunXi UART0"
736 depends on ARCH_SUNXI
Russell King4a0036472013-07-06 23:13:15 +0100737 select DEBUG_UART_8250
Stefan Roeseaa251152012-11-19 12:09:41 +0100738 help
739 Say Y here if you want kernel low-level debugging support
740 on Allwinner A1X based platforms on the UART0.
741
Maxime Ripardcb84fa12012-11-08 12:40:49 +0100742 config DEBUG_SUNXI_UART1
743 bool "Kernel low-level debugging messages via sunXi UART1"
744 depends on ARCH_SUNXI
Russell King4a0036472013-07-06 23:13:15 +0100745 select DEBUG_UART_8250
Maxime Ripardcb84fa12012-11-08 12:40:49 +0100746 help
747 Say Y here if you want kernel low-level debugging support
748 on Allwinner A1X based platforms on the UART1.
749
Chen-Yu Tsaic4718542014-06-20 22:52:51 +0800750 config DEBUG_SUNXI_R_UART
751 bool "Kernel low-level debugging messages via sunXi R_UART"
752 depends on MACH_SUN6I || MACH_SUN8I
753 select DEBUG_UART_8250
754 help
755 Say Y here if you want kernel low-level debugging support
756 on Allwinner A31/A23 based platforms on the R_UART.
757
Russell Kingcce278d2013-07-06 14:23:30 +0100758 config TEGRA_DEBUG_UART_AUTO_ODMDATA
759 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
Stephen Warren46067802012-09-25 15:54:56 -0600760 depends on ARCH_TEGRA
Russell Kingcce278d2013-07-06 14:23:30 +0100761 select DEBUG_TEGRA_UART
762 help
763 Automatically determines which UART to use for low-level
764 debug based on the ODMDATA value. This value is part of
765 the BCT, and is written to the boot memory device using
766 nvflash, or other flashing tool. When bits 19:18 are 3,
767 then bits 17:15 indicate which UART to use; 0/1/2/3/4
768 are UART A/B/C/D/E.
769
770 config TEGRA_DEBUG_UARTA
771 bool "Kernel low-level debugging messages via Tegra UART A"
772 depends on ARCH_TEGRA
773 select DEBUG_TEGRA_UART
774 help
775 Say Y here if you want kernel low-level debugging support
776 on Tegra based platforms.
777
778 config TEGRA_DEBUG_UARTB
779 bool "Kernel low-level debugging messages via Tegra UART B"
780 depends on ARCH_TEGRA
781 select DEBUG_TEGRA_UART
782 help
783 Say Y here if you want kernel low-level debugging support
784 on Tegra based platforms.
785
786 config TEGRA_DEBUG_UARTC
787 bool "Kernel low-level debugging messages via Tegra UART C"
788 depends on ARCH_TEGRA
789 select DEBUG_TEGRA_UART
790 help
791 Say Y here if you want kernel low-level debugging support
792 on Tegra based platforms.
793
794 config TEGRA_DEBUG_UARTD
795 bool "Kernel low-level debugging messages via Tegra UART D"
796 depends on ARCH_TEGRA
797 select DEBUG_TEGRA_UART
798 help
799 Say Y here if you want kernel low-level debugging support
800 on Tegra based platforms.
801
802 config TEGRA_DEBUG_UARTE
803 bool "Kernel low-level debugging messages via Tegra UART E"
804 depends on ARCH_TEGRA
805 select DEBUG_TEGRA_UART
Stephen Warren46067802012-09-25 15:54:56 -0600806 help
807 Say Y here if you want kernel low-level debugging support
808 on Tegra based platforms.
809
Barry Song7f46a102012-12-20 19:45:25 +0800810 config DEBUG_SIRFPRIMA2_UART1
811 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
812 depends on ARCH_PRIMA2
813 help
814 Say Y here if you want the debug print routines to direct
815 their output to the uart1 port on SiRFprimaII devices.
816
817 config DEBUG_SIRFMARCO_UART1
818 bool "Kernel low-level debugging messages via SiRFmarco UART1"
819 depends on ARCH_MARCO
820 help
821 Say Y here if you want the debug print routines to direct
822 their output to the uart1 port on SiRFmarco devices.
823
Russell Kingcce278d2013-07-06 14:23:30 +0100824 config STIH41X_DEBUG_ASC2
825 bool "Use StiH415/416 ASC2 UART for low-level debug"
Arnd Bergmann5562b802013-07-05 16:08:44 +0200826 depends on ARCH_STI
Russell Kingcce278d2013-07-06 14:23:30 +0100827 select DEBUG_STI_UART
Arnd Bergmann5562b802013-07-05 16:08:44 +0200828 help
829 Say Y here if you want kernel low-level debugging support
Russell Kingcce278d2013-07-06 14:23:30 +0100830 on STiH415/416 based platforms like b2000, which has
831 default UART wired up to ASC2.
832
833 If unsure, say N.
834
835 config STIH41X_DEBUG_SBC_ASC1
836 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
837 depends on ARCH_STI
838 select DEBUG_STI_UART
839 help
840 Say Y here if you want kernel low-level debugging support
841 on STiH415/416 based platforms like b2020. which has
842 default UART wired up to SBC ASC1.
Arnd Bergmann5562b802013-07-05 16:08:44 +0200843
844 If unsure, say N.
845
Linus Walleijdd324da2013-05-02 16:34:19 +0200846 config DEBUG_U300_UART
847 bool "Kernel low-level debugging messages via U300 UART0"
848 depends on ARCH_U300
Russell King5c972af2013-07-07 12:32:16 +0100849 select DEBUG_UART_PL01X
Linus Walleijdd324da2013-05-02 16:34:19 +0200850 help
851 Say Y here if you want the debug print routines to direct
852 their output to the uart port on U300 devices.
853
Linus Walleijf87b95d2013-03-19 11:01:36 +0100854 config DEBUG_UX500_UART
855 depends on ARCH_U8500
856 bool "Use Ux500 UART for low-level debug"
857 help
858 Say Y here if you want kernel low-level debugging support
859 on Ux500 based platforms.
860
Matthias Bruggerd6682082014-08-18 16:58:00 +0200861 config DEBUG_MT6589_UART0
862 bool "Mediatek mt6589 UART0"
863 depends on ARCH_MEDIATEK
864 select DEBUG_UART_8250
865 help
866 Say Y here if you want kernel low-level debugging support
867 for Mediatek mt6589 based platforms on UART0.
868
Pawel Moll1b820ea2012-07-11 17:07:25 +0100869 config DEBUG_VEXPRESS_UART0_DETECT
870 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
871 depends on ARCH_VEXPRESS && CPU_CP15_MMU
872 help
873 This option enables a simple heuristic which tries to determine
874 the motherboard's memory map variant (original or RS1) and then
875 choose the relevant UART0 base address.
876
877 Note that this will only work with standard A-class core tiles,
878 and may fail with non-standard SMM or custom software models.
879
880 config DEBUG_VEXPRESS_UART0_CA9
881 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
882 depends on ARCH_VEXPRESS
Russell King5c972af2013-07-07 12:32:16 +0100883 select DEBUG_UART_PL01X
Pawel Moll1b820ea2012-07-11 17:07:25 +0100884 help
885 This option selects UART0 at 0x10009000. Except for custom models,
886 this applies only to the V2P-CA9 tile.
887
888 config DEBUG_VEXPRESS_UART0_RS1
889 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
890 depends on ARCH_VEXPRESS
Russell King5c972af2013-07-07 12:32:16 +0100891 select DEBUG_UART_PL01X
Pawel Moll1b820ea2012-07-11 17:07:25 +0100892 help
893 This option selects UART0 at 0x1c090000. This applies to most
894 of the tiles using the RS1 memory map, including all new A-class
895 core tiles, FPGA-based SMMs and software models.
896
Jonathan Austined18bdc2012-08-30 13:46:44 +0100897 config DEBUG_VEXPRESS_UART0_CRX
898 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
899 depends on ARCH_VEXPRESS && !MMU
Russell King5c972af2013-07-07 12:32:16 +0100900 select DEBUG_UART_PL01X
Jonathan Austined18bdc2012-08-30 13:46:44 +0100901 help
902 This option selects UART0 at 0xb0090000. This is appropriate for
903 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
904
Tony Priskb61a2722012-12-28 12:09:18 +1300905 config DEBUG_VT8500_UART0
906 bool "Use UART0 on VIA/Wondermedia SoCs"
907 depends on ARCH_VT8500
908 help
909 This option selects UART0 on VIA/Wondermedia System-on-a-chip
910 devices, including VT8500, WM8505, WM8650 and WM8850.
911
Russell Kinge76f4752011-11-23 17:44:05 +0000912 config DEBUG_LL_UART_NONE
913 bool "No low-level debugging UART"
Rob Herring387798b2012-09-06 13:41:12 -0500914 depends on !ARCH_MULTIPLATFORM
Russell Kinge76f4752011-11-23 17:44:05 +0000915 help
916 Say Y here if your platform doesn't provide a UART option
Russell King730cc262013-07-07 11:02:00 +0100917 above. This relies on your platform choosing the right UART
Russell Kinge76f4752011-11-23 17:44:05 +0000918 definition internally in order for low-level debugging to
919 work.
920
921 config DEBUG_ICEDCC
922 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
923 help
924 Say Y here if you want the debug print routines to direct
925 their output to the EmbeddedICE macrocell's DCC channel using
926 co-processor 14. This is known to work on the ARM9 style ICE
927 channel and on the XScale with the PEEDI.
928
929 Note that the system will appear to hang during boot if there
930 is nothing connected to read from the DCC.
931
Russell Kingb0df8982012-03-27 11:30:31 +0100932 config DEBUG_SEMIHOSTING
Stephen Boyd62194bd2012-09-06 21:24:32 +0100933 bool "Kernel low-level debug output via semihosting I/O"
Russell Kingb0df8982012-03-27 11:30:31 +0100934 help
935 Semihosting enables code running on an ARM target to use
936 the I/O facilities on a host debugger/emulator through a
Stephen Boyd62194bd2012-09-06 21:24:32 +0100937 simple SVC call. The host debugger or emulator must have
Russell Kingb0df8982012-03-27 11:30:31 +0100938 semihosting enabled for the special svc call to be trapped
939 otherwise the kernel will crash.
940
Stephen Boyd62194bd2012-09-06 21:24:32 +0100941 This is known to work with OpenOCD, as well as
Russell Kingb0df8982012-03-27 11:30:31 +0100942 ARM's Fast Models, or any other controlling environment
943 that implements semihosting.
944
945 For more details about semihosting, please see
946 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
947
Russell Kingf8f12792013-07-07 15:29:38 +0100948 config DEBUG_LL_UART_8250
949 bool "Kernel low-level debugging via 8250 UART"
950 help
951 Say Y here if you wish the debug print routes to direct
952 their output to an 8250 UART. You can use this option
953 to provide the parameters for the 8250 UART rather than
954 selecting one of the platform specific options above if
955 you know the parameters for the port.
956
957 This option is preferred over the platform specific
958 options; the platform specific options are deprecated
959 and will be soon removed.
960
Uwe Kleine-König494e4922013-10-08 16:44:17 +0100961 config DEBUG_LL_UART_EFM32
962 bool "Kernel low-level debugging via efm32 UART"
963 depends on ARCH_EFM32
964 help
965 Say Y here if you want the debug print routines to direct
966 their output to an UART or USART port on efm32 based
967 machines. Use the following addresses for DEBUG_UART_PHYS:
968
969 0x4000c000 | USART0
970 0x4000c400 | USART1
971 0x4000c800 | USART2
972 0x4000e000 | UART0
973 0x4000e400 | UART1
974
Russell Kingf8f12792013-07-07 15:29:38 +0100975 config DEBUG_LL_UART_PL01X
976 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
977 help
978 Say Y here if you wish the debug print routes to direct
979 their output to a PL01x Primecell UART. You can use
980 this option to provide the parameters for the UART
981 rather than selecting one of the platform specific
982 options above if you know the parameters for the port.
983
984 This option is preferred over the platform specific
985 options; the platform specific options are deprecated
986 and will be soon removed.
987
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988endchoice
989
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100990config DEBUG_EXYNOS_UART
991 bool
992
Heiko Stuebnerdaf67df2014-05-16 06:59:18 +0900993config DEBUG_S3C2410_UART
994 bool
Heiko Stuebner1899de22014-05-16 06:59:18 +0900995 select DEBUG_S3C24XX_UART
996
997config DEBUG_S3C24XX_UART
998 bool
Heiko Stuebnerdaf67df2014-05-16 06:59:18 +0900999
Tomasz Figa7bab7d9e2014-07-03 14:39:41 +02001000config DEBUG_S5PV210_UART
1001 bool
1002
Russell Kingcce278d2013-07-06 14:23:30 +01001003config DEBUG_OMAP2PLUS_UART
1004 bool
1005 depends on ARCH_OMAP2PLUS
1006
Shawn Guof8c95fe2012-12-12 19:03:53 +08001007config DEBUG_IMX_UART_PORT
1008 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1009 DEBUG_IMX25_UART || \
1010 DEBUG_IMX21_IMX27_UART || \
1011 DEBUG_IMX31_UART || \
1012 DEBUG_IMX35_UART || \
Greg Ungererad364a72013-10-29 15:15:51 +10001013 DEBUG_IMX50_UART || \
Shawn Guof8c95fe2012-12-12 19:03:53 +08001014 DEBUG_IMX51_UART || \
Paul Bolle0c52db72013-03-11 14:16:00 +01001015 DEBUG_IMX53_UART || \
Shawn Guo34e8a162013-05-03 11:21:03 +08001016 DEBUG_IMX6Q_UART || \
Shawn Guo74368e82014-05-11 21:53:48 +08001017 DEBUG_IMX6SL_UART || \
1018 DEBUG_IMX6SX_UART
Shawn Guo49c9e602012-10-08 13:44:29 +08001019 default 1
Shawn Guo287939a2013-03-13 10:52:49 +08001020 depends on ARCH_MXC
Shawn Guo49c9e602012-10-08 13:44:29 +08001021 help
1022 Choose UART port on which kernel low-level debug messages
1023 should be output.
1024
Stefan Agnercfdb7d52014-03-05 23:07:48 +01001025config DEBUG_VF_UART_PORT
1026 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1027 default 1
1028 range 0 3
1029 depends on SOC_VF610
1030 help
1031 Choose UART port on which kernel low-level debug messages
1032 should be output.
1033
Russell Kingcce278d2013-07-06 14:23:30 +01001034config DEBUG_TEGRA_UART
1035 bool
1036 depends on ARCH_TEGRA
Tony Lindgren808b7e02013-01-11 11:24:19 -08001037
Russell Kingcce278d2013-07-06 14:23:30 +01001038config DEBUG_STI_UART
1039 bool
1040 depends on ARCH_STI
Srinivas Kandagatla5026aec2013-06-25 12:15:32 +01001041
Rob Herring91a9fec2012-08-31 00:03:46 -05001042config DEBUG_LL_INCLUDE
1043 string
Russell Kingf8f12792013-07-07 15:29:38 +01001044 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
Alexander Shiyandd99eef2014-06-19 19:26:34 +04001045 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
Carlo Caioned8a00912014-09-09 21:38:00 +02001046 default "debug/meson.S" if DEBUG_MESON_UARTAO
Russell Kingf8f12792013-07-07 15:29:38 +01001047 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
Arnd Bergmanna2e40712013-03-04 18:03:10 +01001048 default "debug/exynos.S" if DEBUG_EXYNOS_UART
Uwe Kleine-König494e4922013-10-08 16:44:17 +01001049 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
Rob Herring91a9fec2012-08-31 00:03:46 -05001050 default "debug/icedcc.S" if DEBUG_ICEDCC
Shawn Guo6dde5ac2012-09-16 20:50:45 +08001051 default "debug/imx.S" if DEBUG_IMX1_UART || \
1052 DEBUG_IMX25_UART || \
1053 DEBUG_IMX21_IMX27_UART || \
Shawn Guo4ad625d2012-12-12 18:54:01 +08001054 DEBUG_IMX31_UART || \
1055 DEBUG_IMX35_UART || \
Greg Ungererad364a72013-10-29 15:15:51 +10001056 DEBUG_IMX50_UART || \
Shawn Guo6dde5ac2012-09-16 20:50:45 +08001057 DEBUG_IMX51_UART || \
Fabio Estevam7356420c2013-01-22 10:40:55 -02001058 DEBUG_IMX53_UART ||\
Shawn Guo34e8a162013-05-03 11:21:03 +08001059 DEBUG_IMX6Q_UART || \
Shawn Guo74368e82014-05-11 21:53:48 +08001060 DEBUG_IMX6SL_UART || \
1061 DEBUG_IMX6SX_UART
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +03001062 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
Tony Lindgren808b7e02013-01-11 11:24:19 -08001063 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
Heiko Stuebner2cd62bd2014-05-16 06:59:18 +09001064 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
Tomasz Figa7bab7d9e2014-07-03 14:39:41 +02001065 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
Arnd Bergmann67bdb282013-03-19 13:52:14 +01001066 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
Srinivas Kandagatla5026aec2013-06-25 12:15:32 +01001067 default "debug/sti.S" if DEBUG_STI_UART
Linus Torvalds150a8dc2013-05-04 12:34:30 -07001068 default "debug/tegra.S" if DEBUG_TEGRA_UART
1069 default "debug/ux500.S" if DEBUG_UX500_UART
Russell King4e218b92013-07-07 12:36:46 +01001070 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
Shawn Guoc7c3eac2013-05-12 17:22:17 +08001071 default "debug/vf.S" if DEBUG_VF_UART
Tony Priskb61a2722012-12-28 12:09:18 +13001072 default "debug/vt8500.S" if DEBUG_VT8500_UART0
Josh Cartwright385f02b2012-11-19 10:16:01 -06001073 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
Florian Fainellib51312b2014-01-08 09:19:50 -08001074 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
Rob Herring91a9fec2012-08-31 00:03:46 -05001075 default "mach/debug-macro.S"
1076
Russell Kingf8f12792013-07-07 15:29:38 +01001077# Compatibility options for PL01x
Russell King5c972af2013-07-07 12:32:16 +01001078config DEBUG_UART_PL01X
1079 def_bool ARCH_EP93XX || \
1080 ARCH_INTEGRATOR || \
Russell King0dc0e472013-07-07 16:38:18 +01001081 ARCH_SPEAR3XX || \
1082 ARCH_SPEAR6XX || \
1083 ARCH_SPEAR13XX || \
Russell King5c972af2013-07-07 12:32:16 +01001084 ARCH_VERSATILE
1085
Russell Kingf8f12792013-07-07 15:29:38 +01001086# Compatibility options for 8250
Russell King7610b602013-07-06 22:59:10 +01001087config DEBUG_UART_8250
Russell King4a0036472013-07-06 23:13:15 +01001088 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1089 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1090 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
Andrew Lunnba364fc2014-07-10 23:36:21 +02001091 ARCH_IOP33X || ARCH_IXP4XX || \
Russell King4a0036472013-07-06 23:13:15 +01001092 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1093
Florian Fainellib51312b2014-01-08 09:19:50 -08001094# Compatibility options for BCM63xx
1095config DEBUG_UART_BCM63XX
1096 def_bool ARCH_BCM_63XX
1097
Russell Kingc3faa9b2013-07-07 00:01:39 +01001098config DEBUG_UART_PHYS
1099 hex "Physical base address of debug UART"
Russell King97bd1a42013-07-07 16:18:34 +01001100 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
Russell Kingc3faa9b2013-07-07 00:01:39 +01001101 default 0x01c28000 if DEBUG_SUNXI_UART0
1102 default 0x01c28400 if DEBUG_SUNXI_UART1
Russell King97bd1a42013-07-07 16:18:34 +01001103 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1104 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
Chen-Yu Tsaic4718542014-06-20 22:52:51 +08001105 default 0x01f02800 if DEBUG_SUNXI_R_UART
Russell Kingf2acf002013-07-07 16:05:49 +01001106 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1107 default 0x02531000 if DEBUG_KEYSTONE_UART1
Russell Kingc3faa9b2013-07-07 00:01:39 +01001108 default 0x03010fe0 if ARCH_RPC
Krzysztof Hałasab1251702014-09-16 12:35:10 +02001109 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
Russell King5c972af2013-07-07 12:32:16 +01001110 DEBUG_VEXPRESS_UART0_CA9
1111 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
Russell Kingc3faa9b2013-07-07 00:01:39 +01001112 default 0x10124000 if DEBUG_RK3X_UART0
1113 default 0x10126000 if DEBUG_RK3X_UART1
Russell King5c972af2013-07-07 12:32:16 +01001114 default 0x101f1000 if ARCH_VERSATILE
1115 default 0x101fb000 if DEBUG_NOMADIK_UART
Matthias Bruggerd6682082014-08-18 16:58:00 +02001116 default 0x11006000 if DEBUG_MT6589_UART0
Russell King5c972af2013-07-07 12:32:16 +01001117 default 0x16000000 if ARCH_INTEGRATOR
Hauke Mehrtens06580272014-02-04 00:01:44 +01001118 default 0x18000300 if DEBUG_BCM_5301X
Russell King5c972af2013-07-07 12:32:16 +01001119 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
Russell Kingc3faa9b2013-07-07 00:01:39 +01001120 default 0x20060000 if DEBUG_RK29_UART0
1121 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1122 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
Russell King5c972af2013-07-07 12:32:16 +01001123 default 0x20201000 if DEBUG_BCM2835
Christian Daudt753d1242013-12-23 09:00:01 +01001124 default 0x3e000000 if DEBUG_BCM_KONA_UART
Uwe Kleine-König494e4922013-10-08 16:44:17 +01001125 default 0x4000e400 if DEBUG_LL_UART_EFM32
Russell Kingc3faa9b2013-07-07 00:01:39 +01001126 default 0x40090000 if ARCH_LPC32XX
1127 default 0x40100000 if DEBUG_PXA_UART1
1128 default 0x42000000 if ARCH_GEMINI
Heiko Stuebner1899de22014-05-16 06:59:18 +09001129 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1130 DEBUG_S3C2410_UART0)
1131 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1132 DEBUG_S3C2410_UART1)
1133 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1134 DEBUG_S3C2410_UART2)
Krzysztof Hałasac3ca2132014-09-29 08:32:08 +02001135 default 0x78000000 if DEBUG_CNS3XXX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001136 default 0x7c0003f8 if FOOTBRIDGE
Krzysztof Hałasab1251702014-09-16 12:35:10 +02001137 default 0x78000000 if DEBUG_CNS3XXX
Russell King5c972af2013-07-07 12:32:16 +01001138 default 0x80070000 if DEBUG_IMX23_UART
1139 default 0x80074000 if DEBUG_IMX28_UART
Alexander Shiyanc39e1ef2014-04-12 06:07:23 +01001140 default 0x80230000 if DEBUG_PICOXCELL_UART
Russell King5c972af2013-07-07 12:32:16 +01001141 default 0x808c0000 if ARCH_EP93XX
1142 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +03001143 default 0xa9a00000 if DEBUG_MSM_UART
Russell King5c972af2013-07-07 12:32:16 +01001144 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1145 default 0xc0013000 if DEBUG_U300_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001146 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1147 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
Russell King0dc0e472013-07-07 16:38:18 +01001148 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001149 default 0xd0012000 if DEBUG_MVEBU_UART
Carlo Caioned8a00912014-09-09 21:38:00 +02001150 default 0xc81004c0 if DEBUG_MESON_UARTAO
Russell Kingc3faa9b2013-07-07 00:01:39 +01001151 default 0xd4017000 if DEBUG_MMP_UART2
1152 default 0xd4018000 if DEBUG_MMP_UART3
Russell King0dc0e472013-07-07 16:38:18 +01001153 default 0xe0000000 if ARCH_SPEAR13XX
Haojian Zhuangc9a1df42013-12-20 15:01:41 +08001154 default 0xe4007000 if DEBUG_HIP04_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001155 default 0xf0000be0 if ARCH_EBSA110
1156 default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
Andrew Lunnba364fc2014-07-10 23:36:21 +02001157 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
Russell Kingc3faa9b2013-07-07 00:01:39 +01001158 ARCH_ORION5X
Sebastian Hesselbarthcaad0b42013-09-09 14:10:54 +02001159 default 0xf7fc9000 if DEBUG_BERLIN_UART
Haifeng Yan12aae302014-04-11 11:40:58 +08001160 default 0xf8b00000 if DEBUG_HIX5HD2_UART
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +03001161 default 0xf991e000 if DEBUG_QCOM_UARTDM
Haojian Zhuang8d258be2013-08-24 06:58:39 +01001162 default 0xfcb00000 if DEBUG_HI3620_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001163 default 0xfe800000 if ARCH_IOP32X
Heiko Stuebnerefd02ee2014-06-28 13:31:17 +02001164 default 0xff690000 if DEBUG_RK32_UART2
Russell King0b4cccb2013-07-07 11:42:46 +01001165 default 0xffc02000 if DEBUG_SOCFPGA_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001166 default 0xffd82340 if ARCH_IOP13XX
Russell King5c972af2013-07-07 12:32:16 +01001167 default 0xfff36000 if DEBUG_HIGHBANK_UART
Florian Fainellib51312b2014-01-08 09:19:50 -08001168 default 0xfffe8600 if DEBUG_UART_BCM63XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001169 default 0xfffff700 if ARCH_IOP33X
Russell Kingf8f12792013-07-07 15:29:38 +01001170 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
Uwe Kleine-König494e4922013-10-08 16:44:17 +01001171 DEBUG_LL_UART_EFM32 || \
Carlo Caioned8a00912014-09-09 21:38:00 +02001172 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
Florian Fainellib51312b2014-01-08 09:19:50 -08001173 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1174 DEBUG_UART_BCM63XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001175
1176config DEBUG_UART_VIRT
1177 hex "Virtual base address of debug UART"
1178 default 0xe0010fe0 if ARCH_RPC
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +03001179 default 0xe1000000 if DEBUG_MSM_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001180 default 0xf0000be0 if ARCH_EBSA110
Russell King5c972af2013-07-07 12:32:16 +01001181 default 0xf01fb000 if DEBUG_NOMADIK_UART
1182 default 0xf0201000 if DEBUG_BCM2835
Hauke Mehrtens06580272014-02-04 00:01:44 +01001183 default 0xf1000300 if DEBUG_BCM_5301X
Matthias Bruggerd6682082014-08-18 16:58:00 +02001184 default 0xf1006000 if DEBUG_MT6589_UART0
Russell King5c972af2013-07-07 12:32:16 +01001185 default 0xf11f1000 if ARCH_VERSATILE
1186 default 0xf1600000 if ARCH_INTEGRATOR
Russell Kingc3faa9b2013-07-07 00:01:39 +01001187 default 0xf1c28000 if DEBUG_SUNXI_UART0
1188 default 0xf1c28400 if DEBUG_SUNXI_UART1
Chen-Yu Tsaic4718542014-06-20 22:52:51 +08001189 default 0xf1f02800 if DEBUG_SUNXI_R_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001190 default 0xf2100000 if DEBUG_PXA_UART1
1191 default 0xf4090000 if ARCH_LPC32XX
1192 default 0xf4200000 if ARCH_GEMINI
Heiko Stuebner1899de22014-05-16 06:59:18 +09001193 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1194 DEBUG_S3C2410_UART0)
1195 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1196 DEBUG_S3C2410_UART1)
1197 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1198 DEBUG_S3C2410_UART2)
Sebastian Hesselbarthcaad0b42013-09-09 14:10:54 +02001199 default 0xf7fc9000 if DEBUG_BERLIN_UART
Haojian Zhuangc9a1df42013-12-20 15:01:41 +08001200 default 0xf8007000 if DEBUG_HIP04_UART
Russell King5c972af2013-07-07 12:32:16 +01001201 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1202 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
Ivan T. Ivanov7098cff2014-04-14 16:47:34 +03001203 default 0xfa71e000 if DEBUG_QCOM_UARTDM
Krzysztof Hałasab1251702014-09-16 12:35:10 +02001204 default 0xfb002000 if DEBUG_CNS3XXX
Russell King5c972af2013-07-07 12:32:16 +01001205 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1206 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
Florian Fainellib51312b2014-01-08 09:19:50 -08001207 default 0xfcfe8600 if DEBUG_UART_BCM63XX
Russell King0dc0e472013-07-07 16:38:18 +01001208 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1209 default 0xfd000000 if ARCH_SPEAR13XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001210 default 0xfd012000 if ARCH_MV78XX0
1211 default 0xfde12000 if ARCH_DOVE
1212 default 0xfe012000 if ARCH_ORION5X
Carlo Caioned8a00912014-09-09 21:38:00 +02001213 default 0xf31004c0 if DEBUG_MESON_UARTAO
Russell Kingc3faa9b2013-07-07 00:01:39 +01001214 default 0xfe017000 if DEBUG_MMP_UART2
1215 default 0xfe018000 if DEBUG_MMP_UART3
Russell King5c972af2013-07-07 12:32:16 +01001216 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
Russell King0b4cccb2013-07-07 11:42:46 +01001217 default 0xfe230000 if DEBUG_PICOXCELL_UART
Christian Daudt753d1242013-12-23 09:00:01 +01001218 default 0xfe300000 if DEBUG_BCM_KONA_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001219 default 0xfe800000 if ARCH_IOP32X
Haifeng Yan12aae302014-04-11 11:40:58 +08001220 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001221 default 0xfeb24000 if DEBUG_RK3X_UART0
1222 default 0xfeb26000 if DEBUG_RK3X_UART1
Russell Kingf2acf002013-07-07 16:05:49 +01001223 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1224 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
Russell King0b4cccb2013-07-07 11:42:46 +01001225 default 0xfec02000 if DEBUG_SOCFPGA_UART
Alexander Shiyanc39e1ef2014-04-12 06:07:23 +01001226 default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
Russell King97bd1a42013-07-07 16:18:34 +01001227 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
Heiko Stuebnerefd02ee2014-06-28 13:31:17 +02001228 default 0xfec90000 if DEBUG_RK32_UART2
Russell King97bd1a42013-07-07 16:18:34 +01001229 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1230 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
Alexander Shiyanc39e1ef2014-04-12 06:07:23 +01001231 default 0xfed60000 if DEBUG_RK29_UART0
1232 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1233 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
Russell King5c972af2013-07-07 12:32:16 +01001234 default 0xfedc0000 if ARCH_EP93XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001235 default 0xfee003f8 if FOOTBRIDGE
Russell King5c972af2013-07-07 12:32:16 +01001236 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001237 default 0xfee82340 if ARCH_IOP13XX
1238 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1239 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
Alexander Shiyanc39e1ef2014-04-12 06:07:23 +01001240 default 0xfef36000 if DEBUG_HIGHBANK_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001241 default 0xfefff700 if ARCH_IOP33X
Russell King5c972af2013-07-07 12:32:16 +01001242 default 0xff003000 if DEBUG_U300_UART
1243 default DEBUG_UART_PHYS if !MMU
Russell Kingf8f12792013-07-07 15:29:38 +01001244 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
Carlo Caioned8a00912014-09-09 21:38:00 +02001245 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
Florian Fainellib51312b2014-01-08 09:19:50 -08001246 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1247 DEBUG_UART_BCM63XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001248
Russell King4a0036472013-07-06 23:13:15 +01001249config DEBUG_UART_8250_SHIFT
1250 int "Register offset shift for the 8250 debug UART"
Russell Kingf8f12792013-07-07 15:29:38 +01001251 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
Russell King4a0036472013-07-06 23:13:15 +01001252 default 0 if FOOTBRIDGE || ARCH_IOP32X
1253 default 2
Russell King7610b602013-07-06 22:59:10 +01001254
Russell King0b4cccb2013-07-07 11:42:46 +01001255config DEBUG_UART_8250_WORD
1256 bool "Use 32-bit accesses for 8250 UART"
Russell Kingf8f12792013-07-07 15:29:38 +01001257 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
Russell King0b4cccb2013-07-07 11:42:46 +01001258 depends on DEBUG_UART_8250_SHIFT >= 2
Russell Kingf2acf002013-07-07 16:05:49 +01001259 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
Russell King97bd1a42013-07-07 16:18:34 +01001260 ARCH_KEYSTONE || \
1261 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
Arnd Bergmann9d6eccb2014-02-12 22:22:00 +01001262 DEBUG_DAVINCI_DA8XX_UART2 || \
Heiko Stuebnerefd02ee2014-06-28 13:31:17 +02001263 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
Russell King0b4cccb2013-07-07 11:42:46 +01001264
Russell King7610b602013-07-06 22:59:10 +01001265config DEBUG_UART_8250_FLOW_CONTROL
1266 bool "Enable flow control for 8250 UART"
Russell Kingf8f12792013-07-07 15:29:38 +01001267 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
Russell King7610b602013-07-06 22:59:10 +01001268 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1269
Shawn Guo3b4af9b2013-03-14 08:48:06 +01001270config DEBUG_UNCOMPRESS
1271 bool
Heiko Stuebner90266752014-03-11 22:05:09 +09001272 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
Russell Kingb6992fa2013-07-17 17:54:27 +01001273 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
Stephen Warrenae3c99a2013-08-02 20:53:37 +01001274 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
Russell Kingb6992fa2013-07-17 17:54:27 +01001275 help
1276 This option influences the normal decompressor output for
1277 multiplatform kernels. Normally, multiplatform kernels disable
1278 decompressor output because it is not possible to know where to
1279 send the decompressor output.
1280
1281 When this option is set, the selected DEBUG_LL output method
1282 will be re-used for normal decompressor output on multiplatform
1283 kernels.
1284
Shawn Guo3b4af9b2013-03-14 08:48:06 +01001285
Shawn Guo615967b2013-03-14 08:47:27 +01001286config UNCOMPRESS_INCLUDE
1287 string
Sachin Kamatffd80ec2014-02-24 09:38:12 +09001288 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
Linus Torvalds2bf73dd62014-04-05 15:46:37 -07001289 PLAT_SAMSUNG || ARCH_EFM32
Shawn Guo615967b2013-03-14 08:47:27 +01001290 default "mach/uncompress.h"
1291
Catalin Marinas93fd03a2009-12-09 10:02:18 +00001292config EARLY_PRINTK
1293 bool "Early printk"
1294 depends on DEBUG_LL
1295 help
1296 Say Y here if you want to have an early console using the
1297 kernel low-level debugging functions. Add earlyprintk to your
1298 kernel parameters to enable this console.
1299
Alexander Shishkinc5d6c772009-12-01 14:00:51 +01001300config OC_ETM
1301 bool "On-chip ETM and ETB"
Arnd Bergmann53eebb02011-09-07 10:02:35 +02001302 depends on ARM_AMBA
Alexander Shishkinc5d6c772009-12-01 14:00:51 +01001303 help
1304 Enables the on-chip embedded trace macrocell and embedded trace
1305 buffer driver that will allow you to collect traces of the
1306 kernel code.
1307
Jon Medhurst4189bc72011-08-27 12:36:58 +01001308config ARM_KPROBES_TEST
1309 tristate "Kprobes test module"
1310 depends on KPROBES && MODULES
1311 help
1312 Perform tests of kprobes API and instruction set simulation.
1313
Will Deacon575320d2012-07-06 15:43:03 +01001314config PID_IN_CONTEXTIDR
1315 bool "Write the current PID to the CONTEXTIDR register"
1316 depends on CPU_COPY_V6
1317 help
1318 Enabling this option causes the kernel to write the current PID to
1319 the PROCID field of the CONTEXTIDR register, at the expense of some
1320 additional instructions during context switch. Say Y here only if you
1321 are planning to use hardware trace tools with this kernel.
1322
Laura Abbottdca9aa92013-06-17 10:29:14 -07001323config DEBUG_SET_MODULE_RONX
1324 bool "Set loadable kernel module data as NX and text as RO"
1325 depends on MODULES
1326 ---help---
1327 This option helps catch unintended modifications to loadable
1328 kernel module's text and read-only data. It also prevents execution
1329 of module data. Such protection may interfere with run-time code
1330 patching and dynamic kernel tracing - and they might also protect
1331 against certain classes of kernel exploits.
1332 If in doubt, say "N".
1333
Pratik Patela06ae862014-11-03 11:07:35 -07001334menuconfig CORESIGHT
1335 bool "CoreSight Tracing Support"
1336 select ARM_AMBA
1337 help
1338 This framework provides a kernel interface for the CoreSight debug
1339 and trace drivers to register themselves with. It's intended to build
1340 a topological view of the CoreSight components based on a DT
1341 specification and configure the right serie of components when a
1342 trace source gets enabled.
Pratik Patelbc4bf7f2014-11-03 11:07:36 -07001343
1344if CORESIGHT
1345config CORESIGHT_LINKS_AND_SINKS
1346 bool "CoreSight Link and Sink drivers"
1347 help
1348 This enables support for CoreSight link and sink drivers that are
1349 responsible for transporting and collecting the trace data
1350 respectively. Link and sinks are dynamically aggregated with a trace
1351 entity at run time to form a complete trace path.
1352
1353config CORESIGHT_LINK_AND_SINK_TMC
1354 bool "Coresight generic TMC driver"
1355 depends on CORESIGHT_LINKS_AND_SINKS
1356 help
1357 This enables support for the Trace Memory Controller driver. Depending
1358 on its configuration the device can act as a link (embedded trace router
1359 - ETR) or sink (embedded trace FIFO). The driver complies with the
1360 generic implementation of the component without special enhancement or
1361 added features.
1362endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001363endmenu