blob: 0531da8e5216e442ee1f9c8878e4fb9d84611581 [file] [log] [blame]
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
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600104 config DEBUG_BCM2835
105 bool "Kernel low-level debugging on BCM2835 PL011 UART"
106 depends on ARCH_BCM2835
Russell King5c972af2013-07-07 12:32:16 +0100107 select DEBUG_UART_PL01X
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600108
Christian Daudt753d1242013-12-23 09:00:01 +0100109 config DEBUG_BCM_KONA_UART
110 bool "Kernel low-level debugging messages via BCM KONA UART"
111 depends on ARCH_BCM
112 select DEBUG_UART_8250
113 help
114 Say Y here if you want kernel low-level debugging support
115 on Broadcom SoC platforms.
116 This low level debug works for Broadcom
117 mobile SoCs in the Kona family of chips (e.g. bcm28155,
118 bcm11351, etc...)
119
Sebastian Hesselbarthcaad0b42013-09-09 14:10:54 +0200120 config DEBUG_BERLIN_UART
121 bool "Marvell Berlin SoC Debug UART"
122 depends on ARCH_BERLIN
123 select DEBUG_UART_8250
124 help
125 Say Y here if you want kernel low-level debugging support
126 on Marvell Berlin SoC based platforms.
127
Stephen Boyd164acf92011-09-22 20:28:35 +0100128 config DEBUG_CLPS711X_UART1
129 bool "Kernel low-level debugging messages via UART1"
130 depends on ARCH_CLPS711X
131 help
132 Say Y here if you want the debug print routines to direct
133 their output to the first serial port on these devices.
Will Deacon17916b22011-09-01 18:58:51 +0100134
135 config DEBUG_CLPS711X_UART2
136 bool "Kernel low-level debugging messages via UART2"
137 depends on ARCH_CLPS711X
138 help
139 Say Y here if you want the debug print routines to direct
140 their output to the second serial port on these devices.
Will Deacon17916b22011-09-01 18:58:51 +0100141
Arnd Bergmann29c9b7b2013-03-14 16:02:59 +0100142 config DEBUG_CNS3XXX
143 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
144 depends on ARCH_CNS3XXX
Russell King5c972af2013-07-07 12:32:16 +0100145 select DEBUG_UART_PL01X
Arnd Bergmann29c9b7b2013-03-14 16:02:59 +0100146 help
147 Say Y here if you want the debug print routines to direct
148 their output to the CNS3xxx UART0.
149
Uwe Kleine-König477099f2012-03-22 10:29:23 +0100150 config DEBUG_DAVINCI_DA8XX_UART1
151 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
152 depends on ARCH_DAVINCI_DA8XX
Russell King97bd1a42013-07-07 16:18:34 +0100153 select DEBUG_UART_8250
Uwe Kleine-König477099f2012-03-22 10:29:23 +0100154 help
155 Say Y here if you want the debug print routines to direct
156 their output to UART1 serial port on DaVinci DA8XX devices.
157
158 config DEBUG_DAVINCI_DA8XX_UART2
159 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
160 depends on ARCH_DAVINCI_DA8XX
Russell King97bd1a42013-07-07 16:18:34 +0100161 select DEBUG_UART_8250
Uwe Kleine-König477099f2012-03-22 10:29:23 +0100162 help
163 Say Y here if you want the debug print routines to direct
164 their output to UART2 serial port on DaVinci DA8XX devices.
165
166 config DEBUG_DAVINCI_DMx_UART0
167 bool "Kernel low-level debugging on DaVinci DMx using UART0"
168 depends on ARCH_DAVINCI_DMx
Russell King97bd1a42013-07-07 16:18:34 +0100169 select DEBUG_UART_8250
Uwe Kleine-König477099f2012-03-22 10:29:23 +0100170 help
171 Say Y here if you want the debug print routines to direct
172 their output to UART0 serial port on DaVinci DMx devices.
173
174 config DEBUG_DAVINCI_TNETV107X_UART1
175 bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
176 depends on ARCH_DAVINCI_TNETV107X
Russell King97bd1a42013-07-07 16:18:34 +0100177 select DEBUG_UART_8250
Uwe Kleine-König477099f2012-03-22 10:29:23 +0100178 help
179 Say Y here if you want the debug print routines to direct
180 their output to UART1 serial port on DaVinci TNETV107X
181 devices.
182
Nick Bowleraaf5e0b2012-11-05 16:45:49 -0500183 config DEBUG_ZYNQ_UART0
184 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
185 depends on ARCH_ZYNQ
186 help
187 Say Y here if you want the debug print routines to direct
188 their output to UART0 on the Zynq platform.
189
190 config DEBUG_ZYNQ_UART1
191 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
192 depends on ARCH_ZYNQ
193 help
194 Say Y here if you want the debug print routines to direct
195 their output to UART1 on the Zynq platform.
196
197 If you have a ZC702 board and want early boot messages to
198 appear on the USB serial adaptor, select this option.
199
Russell Kinge76f4752011-11-23 17:44:05 +0000200 config DEBUG_DC21285_PORT
201 bool "Kernel low-level debugging messages via footbridge serial port"
202 depends on FOOTBRIDGE
203 help
204 Say Y here if you want the debug print routines to direct
205 their output to the serial port in the DC21285 (Footbridge).
206
207 config DEBUG_FOOTBRIDGE_COM1
208 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
209 depends on FOOTBRIDGE
210 help
211 Say Y here if you want the debug print routines to direct
212 their output to the 8250 at PCI COM1.
213
Haojian Zhuang8d258be2013-08-24 06:58:39 +0100214 config DEBUG_HI3620_UART
215 bool "Hisilicon HI3620 Debug UART"
216 depends on ARCH_HI3xxx
217 select DEBUG_UART_PL01X
218 help
219 Say Y here if you want kernel low-level debugging support
220 on HI3620 UART.
221
222 config DEBUG_HI3716_UART
223 bool "Hisilicon Hi3716 Debug UART"
224 depends on ARCH_HI3xxx
225 select DEBUG_UART_PL01X
226 help
227 Say Y here if you want kernel low-level debugging support
228 on HI3716 UART.
229
Rob Herring220e6cf2011-06-07 10:02:55 -0500230 config DEBUG_HIGHBANK_UART
231 bool "Kernel low-level debugging messages via Highbank UART"
232 depends on ARCH_HIGHBANK
Russell King5c972af2013-07-07 12:32:16 +0100233 select DEBUG_UART_PL01X
Rob Herring220e6cf2011-06-07 10:02:55 -0500234 help
235 Say Y here if you want the debug print routines to direct
236 their output to the UART on Highbank based devices.
237
Shawn Guof350b862011-08-19 05:56:59 +0100238 config DEBUG_IMX1_UART
239 bool "i.MX1 Debug UART"
240 depends on SOC_IMX1
241 help
242 Say Y here if you want kernel low-level debugging support
243 on i.MX1.
244
245 config DEBUG_IMX23_UART
246 bool "i.MX23 Debug UART"
247 depends on SOC_IMX23
Russell King5c972af2013-07-07 12:32:16 +0100248 select DEBUG_UART_PL01X
Shawn Guof350b862011-08-19 05:56:59 +0100249 help
250 Say Y here if you want kernel low-level debugging support
251 on i.MX23.
252
253 config DEBUG_IMX25_UART
254 bool "i.MX25 Debug UART"
255 depends on SOC_IMX25
256 help
257 Say Y here if you want kernel low-level debugging support
258 on i.MX25.
259
260 config DEBUG_IMX21_IMX27_UART
261 bool "i.MX21 and i.MX27 Debug UART"
262 depends on SOC_IMX21 || SOC_IMX27
263 help
264 Say Y here if you want kernel low-level debugging support
265 on i.MX21 or i.MX27.
266
267 config DEBUG_IMX28_UART
268 bool "i.MX28 Debug UART"
269 depends on SOC_IMX28
Russell King5c972af2013-07-07 12:32:16 +0100270 select DEBUG_UART_PL01X
Shawn Guof350b862011-08-19 05:56:59 +0100271 help
272 Say Y here if you want kernel low-level debugging support
273 on i.MX28.
274
Shawn Guo4ad625d2012-12-12 18:54:01 +0800275 config DEBUG_IMX31_UART
276 bool "i.MX31 Debug UART"
277 depends on SOC_IMX31
Shawn Guof350b862011-08-19 05:56:59 +0100278 help
279 Say Y here if you want kernel low-level debugging support
Shawn Guo4ad625d2012-12-12 18:54:01 +0800280 on i.MX31.
281
282 config DEBUG_IMX35_UART
283 bool "i.MX35 Debug UART"
284 depends on SOC_IMX35
285 help
286 Say Y here if you want kernel low-level debugging support
287 on i.MX35.
Shawn Guof350b862011-08-19 05:56:59 +0100288
Greg Ungererad364a72013-10-29 15:15:51 +1000289 config DEBUG_IMX50_UART
290 bool "i.MX50 Debug UART"
291 depends on SOC_IMX50
292 help
293 Say Y here if you want kernel low-level debugging support
294 on i.MX50.
295
Shawn Guof350b862011-08-19 05:56:59 +0100296 config DEBUG_IMX51_UART
297 bool "i.MX51 Debug UART"
298 depends on SOC_IMX51
299 help
300 Say Y here if you want kernel low-level debugging support
301 on i.MX51.
302
Fabio Estevam7356420c2013-01-22 10:40:55 -0200303 config DEBUG_IMX53_UART
304 bool "i.MX53 Debug UART"
305 depends on SOC_IMX53
Shawn Guof350b862011-08-19 05:56:59 +0100306 help
307 Say Y here if you want kernel low-level debugging support
Fabio Estevam7356420c2013-01-22 10:40:55 -0200308 on i.MX53.
Shawn Guof350b862011-08-19 05:56:59 +0100309
Shawn Guo49c9e602012-10-08 13:44:29 +0800310 config DEBUG_IMX6Q_UART
Shawn Guo3c03a2f2013-04-01 22:13:32 +0800311 bool "i.MX6Q/DL Debug UART"
Dirk Behme785d7fa2012-04-27 10:15:45 +0200312 depends on SOC_IMX6Q
313 help
314 Say Y here if you want kernel low-level debugging support
Shawn Guo3c03a2f2013-04-01 22:13:32 +0800315 on i.MX6Q/DL.
Shawn Guobac89d72011-10-02 15:09:11 +0800316
Shawn Guo34e8a162013-05-03 11:21:03 +0800317 config DEBUG_IMX6SL_UART
318 bool "i.MX6SL Debug UART"
319 depends on SOC_IMX6SL
320 help
321 Say Y here if you want kernel low-level debugging support
322 on i.MX6SL.
323
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400324 config DEBUG_KEYSTONE_UART0
325 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
326 depends on ARCH_KEYSTONE
Russell Kingf2acf002013-07-07 16:05:49 +0100327 select DEBUG_UART_8250
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400328 help
329 Say Y here if you want the debug print routines to direct
330 their output to UART0 serial port on KEYSTONE2 devices.
331
332 config DEBUG_KEYSTONE_UART1
333 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
334 depends on ARCH_KEYSTONE
Russell Kingf2acf002013-07-07 16:05:49 +0100335 select DEBUG_UART_8250
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400336 help
337 Say Y here if you want the debug print routines to direct
338 their output to UART1 serial port on KEYSTONE2 devices.
339
Haojian Zhuangfa4cd2a2012-08-10 23:49:41 +0800340 config DEBUG_MMP_UART2
341 bool "Kernel low-level debugging message via MMP UART2"
342 depends on ARCH_MMP
Russell King4a0036472013-07-06 23:13:15 +0100343 select DEBUG_UART_8250
Haojian Zhuangfa4cd2a2012-08-10 23:49:41 +0800344 help
345 Say Y here if you want kernel low-level debugging support
346 on MMP UART2.
347
348 config DEBUG_MMP_UART3
349 bool "Kernel low-level debugging message via MMP UART3"
350 depends on ARCH_MMP
Russell King4a0036472013-07-06 23:13:15 +0100351 select DEBUG_UART_8250
Haojian Zhuangfa4cd2a2012-08-10 23:49:41 +0800352 help
353 Say Y here if you want kernel low-level debugging support
354 on MMP UART3.
355
Stephen Boyd650e3f02011-11-08 10:33:03 -0800356 config DEBUG_MSM_UART1
357 bool "Kernel low-level debugging messages via MSM UART1"
358 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
Rohit Vaswanic527c3b2013-10-17 22:07:27 +0100359 select DEBUG_MSM_UART
Stephen Boyd650e3f02011-11-08 10:33:03 -0800360 help
361 Say Y here if you want the debug print routines to direct
362 their output to the first serial port on MSM devices.
363
364 config DEBUG_MSM_UART2
365 bool "Kernel low-level debugging messages via MSM UART2"
366 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
Rohit Vaswanic527c3b2013-10-17 22:07:27 +0100367 select DEBUG_MSM_UART
Stephen Boyd650e3f02011-11-08 10:33:03 -0800368 help
369 Say Y here if you want the debug print routines to direct
370 their output to the second serial port on MSM devices.
371
372 config DEBUG_MSM_UART3
373 bool "Kernel low-level debugging messages via MSM UART3"
374 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
Rohit Vaswanic527c3b2013-10-17 22:07:27 +0100375 select DEBUG_MSM_UART
Stephen Boyd650e3f02011-11-08 10:33:03 -0800376 help
377 Say Y here if you want the debug print routines to direct
378 their output to the third serial port on MSM devices.
379
Stephen Boyda3d3ef92011-11-08 10:33:04 -0800380 config DEBUG_MSM8660_UART
381 bool "Kernel low-level debugging messages via MSM 8660 UART"
382 depends on ARCH_MSM8X60
383 select MSM_HAS_DEBUG_UART_HS
Rohit Vaswanic527c3b2013-10-17 22:07:27 +0100384 select DEBUG_MSM_UART
Stephen Boyda3d3ef92011-11-08 10:33:04 -0800385 help
386 Say Y here if you want the debug print routines to direct
387 their output to the serial port on MSM 8660 devices.
388
389 config DEBUG_MSM8960_UART
390 bool "Kernel low-level debugging messages via MSM 8960 UART"
391 depends on ARCH_MSM8960
392 select MSM_HAS_DEBUG_UART_HS
Rohit Vaswanic527c3b2013-10-17 22:07:27 +0100393 select DEBUG_MSM_UART
Stephen Boyda3d3ef92011-11-08 10:33:04 -0800394 help
395 Say Y here if you want the debug print routines to direct
396 their output to the serial port on MSM 8960 devices.
397
Rohit Vaswani3c8828f2013-10-17 22:15:35 +0100398 config DEBUG_MSM8974_UART
399 bool "Kernel low-level debugging messages via MSM 8974 UART"
400 depends on ARCH_MSM8974
401 select MSM_HAS_DEBUG_UART_HS
402 select DEBUG_MSM_UART
403 help
404 Say Y here if you want the debug print routines to direct
405 their output to the serial port on MSM 8974 devices.
406
Rob Herringbfd5af92012-09-02 14:41:34 -0500407 config DEBUG_MVEBU_UART
Thomas Petazzonic2804cd2013-06-05 09:05:00 +0200408 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
Rob Herringbfd5af92012-09-02 14:41:34 -0500409 depends on ARCH_MVEBU
Russell King4a0036472013-07-06 23:13:15 +0100410 select DEBUG_UART_8250
Rob Herringbfd5af92012-09-02 14:41:34 -0500411 help
412 Say Y here if you want kernel low-level debugging support
413 on MVEBU based platforms.
414
Thomas Petazzonic2804cd2013-06-05 09:05:00 +0200415 This option should be used with the old bootloaders
416 that left the internal registers mapped at
417 0xd0000000. As of today, this is the case on
418 platforms such as the Globalscale Mirabox or the
419 Plathome OpenBlocks AX3, when using the original
420 bootloader.
421
422 If the wrong DEBUG_MVEBU_UART* option is selected,
423 when u-boot hands over to the kernel, the system
424 silently crashes, with no serial output at all.
425
426 config DEBUG_MVEBU_UART_ALTERNATE
427 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
428 depends on ARCH_MVEBU
Russell King4a0036472013-07-06 23:13:15 +0100429 select DEBUG_UART_8250
Thomas Petazzonic2804cd2013-06-05 09:05:00 +0200430 help
431 Say Y here if you want kernel low-level debugging support
432 on MVEBU based platforms.
433
434 This option should be used with the new bootloaders
435 that remap the internal registers at 0xf1000000.
436
437 If the wrong DEBUG_MVEBU_UART* option is selected,
438 when u-boot hands over to the kernel, the system
439 silently crashes, with no serial output at all.
440
Shawn Guoc7c3eac2013-05-12 17:22:17 +0800441 config DEBUG_VF_UART
442 bool "Vybrid UART"
443 depends on SOC_VF610
444 help
445 Say Y here if you want kernel low-level debugging support
446 on Vybrid based platforms.
447
Linus Walleij266c3472013-02-27 22:39:57 +0100448 config DEBUG_NOMADIK_UART
449 bool "Kernel low-level debugging messages via NOMADIK UART"
450 depends on ARCH_NOMADIK
Russell King5c972af2013-07-07 12:32:16 +0100451 select DEBUG_UART_PL01X
Linus Walleij266c3472013-02-27 22:39:57 +0100452 help
453 Say Y here if you want kernel low-level debugging support
454 on NOMADIK based platforms.
455
Daniel Tang9851ca52013-06-11 18:40:17 +1000456 config DEBUG_NSPIRE_CLASSIC_UART
457 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
458 depends on ARCH_NSPIRE
Russell King4a0036472013-07-06 23:13:15 +0100459 select DEBUG_UART_8250
Daniel Tang9851ca52013-06-11 18:40:17 +1000460 help
461 Say Y here if you want kernel low-level debugging support
462 on TI-NSPIRE classic models.
463
464 config DEBUG_NSPIRE_CX_UART
465 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
466 depends on ARCH_NSPIRE
Russell King5c972af2013-07-07 12:32:16 +0100467 select DEBUG_UART_PL01X
Daniel Tang9851ca52013-06-11 18:40:17 +1000468 help
469 Say Y here if you want kernel low-level debugging support
470 on TI-NSPIRE CX models.
471
Russell Kingcce278d2013-07-06 14:23:30 +0100472 config DEBUG_OMAP2UART1
473 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
Tony Lindgren808b7e02013-01-11 11:24:19 -0800474 depends on ARCH_OMAP2PLUS
Russell Kingcce278d2013-07-06 14:23:30 +0100475 select DEBUG_OMAP2PLUS_UART
Tony Lindgren808b7e02013-01-11 11:24:19 -0800476 help
Russell Kingcce278d2013-07-06 14:23:30 +0100477 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
478 omap3 torpedo and 3530 lv som.
479
480 config DEBUG_OMAP2UART2
481 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
482 depends on ARCH_OMAP2PLUS
483 select DEBUG_OMAP2PLUS_UART
484
485 config DEBUG_OMAP2UART3
486 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
487 depends on ARCH_OMAP2PLUS
488 select DEBUG_OMAP2PLUS_UART
489
490 config DEBUG_OMAP3UART3
491 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
492 depends on ARCH_OMAP2PLUS
493 select DEBUG_OMAP2PLUS_UART
494 help
495 This covers at least cm_t3x, beagle, crane, devkit8000,
496 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
497 and 3517evm.
498
499 config DEBUG_OMAP4UART3
500 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
501 depends on ARCH_OMAP2PLUS
502 select DEBUG_OMAP2PLUS_UART
503
504 config DEBUG_OMAP3UART4
505 bool "Kernel low-level debugging messages via OMAP36XX UART4"
506 depends on ARCH_OMAP2PLUS
507 select DEBUG_OMAP2PLUS_UART
508
509 config DEBUG_OMAP4UART4
510 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
511 depends on ARCH_OMAP2PLUS
512 select DEBUG_OMAP2PLUS_UART
513
514 config DEBUG_TI81XXUART1
515 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
516 depends on ARCH_OMAP2PLUS
517 select DEBUG_OMAP2PLUS_UART
518
519 config DEBUG_TI81XXUART2
520 bool "Kernel low-level debugging messages via TI81XX UART2"
521 depends on ARCH_OMAP2PLUS
522 select DEBUG_OMAP2PLUS_UART
523
524 config DEBUG_TI81XXUART3
525 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
526 depends on ARCH_OMAP2PLUS
527 select DEBUG_OMAP2PLUS_UART
528
529 config DEBUG_AM33XXUART1
530 bool "Kernel low-level debugging messages via AM33XX UART1"
531 depends on ARCH_OMAP2PLUS
532 select DEBUG_OMAP2PLUS_UART
533
534 config DEBUG_ZOOM_UART
535 bool "Kernel low-level debugging messages via Zoom2/3 UART"
536 depends on ARCH_OMAP2PLUS
537 select DEBUG_OMAP2PLUS_UART
Tony Lindgren808b7e02013-01-11 11:24:19 -0800538
Rob Herring59bba2a2012-09-06 14:14:46 -0500539 config DEBUG_PICOXCELL_UART
540 depends on ARCH_PICOXCELL
541 bool "Use PicoXcell UART for low-level debug"
Russell King0b4cccb2013-07-07 11:42:46 +0100542 select DEBUG_UART_8250
Rob Herring59bba2a2012-09-06 14:14:46 -0500543 help
544 Say Y here if you want kernel low-level debugging support
545 on PicoXcell based platforms.
546
Haojian Zhuang0a43cd3b2013-04-10 11:17:04 +0800547 config DEBUG_PXA_UART1
548 depends on ARCH_PXA
549 bool "Use PXA UART1 for low-level debug"
Russell King4a0036472013-07-06 23:13:15 +0100550 select DEBUG_UART_8250
Haojian Zhuang0a43cd3b2013-04-10 11:17:04 +0800551 help
552 Say Y here if you want kernel low-level debugging support
553 on PXA UART1.
554
Russell Kinge76f4752011-11-23 17:44:05 +0000555 config DEBUG_REALVIEW_STD_PORT
556 bool "RealView Default UART"
557 depends on ARCH_REALVIEW
Russell King5c972af2013-07-07 12:32:16 +0100558 select DEBUG_UART_PL01X
Russell Kinge76f4752011-11-23 17:44:05 +0000559 help
560 Say Y here if you want the debug print routines to direct
561 their output to the serial port on RealView EB, PB11MP, PBA8
562 and PBX platforms.
563
564 config DEBUG_REALVIEW_PB1176_PORT
565 bool "RealView PB1176 UART"
566 depends on MACH_REALVIEW_PB1176
Russell King5c972af2013-07-07 12:32:16 +0100567 select DEBUG_UART_PL01X
Russell Kinge76f4752011-11-23 17:44:05 +0000568 help
569 Say Y here if you want the debug print routines to direct
570 their output to the standard serial port on the RealView
571 PB1176 platform.
572
Russell Kingcce278d2013-07-06 14:23:30 +0100573 config DEBUG_RK29_UART0
574 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
Heiko Stuebner38bd6892013-05-28 22:13:52 +0200575 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100576 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100577 help
578 Say Y here if you want kernel low-level debugging support
579 on Rockchip based platforms.
580
581 config DEBUG_RK29_UART1
582 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
583 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100584 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100585 help
586 Say Y here if you want kernel low-level debugging support
587 on Rockchip based platforms.
588
589 config DEBUG_RK29_UART2
590 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
591 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100592 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100593 help
594 Say Y here if you want kernel low-level debugging support
595 on Rockchip based platforms.
596
597 config DEBUG_RK3X_UART0
598 bool "Kernel low-level debugging messages via Rockchip RK3X UART0"
599 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100600 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100601 help
602 Say Y here if you want kernel low-level debugging support
603 on Rockchip based platforms.
604
605 config DEBUG_RK3X_UART1
606 bool "Kernel low-level debugging messages via Rockchip RK3X UART1"
607 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100608 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100609 help
610 Say Y here if you want kernel low-level debugging support
611 on Rockchip based platforms.
612
613 config DEBUG_RK3X_UART2
614 bool "Kernel low-level debugging messages via Rockchip RK3X UART2"
615 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100616 select DEBUG_UART_8250
Russell Kingcce278d2013-07-06 14:23:30 +0100617 help
618 Say Y here if you want kernel low-level debugging support
619 on Rockchip based platforms.
620
621 config DEBUG_RK3X_UART3
622 bool "Kernel low-level debugging messages via Rockchip RK3X UART3"
623 depends on ARCH_ROCKCHIP
Russell King4a0036472013-07-06 23:13:15 +0100624 select DEBUG_UART_8250
Heiko Stuebner38bd6892013-05-28 22:13:52 +0200625 help
626 Say Y here if you want kernel low-level debugging support
627 on Rockchip based platforms.
628
Russell Kinge76f4752011-11-23 17:44:05 +0000629 config DEBUG_S3C_UART0
630 depends on PLAT_SAMSUNG
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100631 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
Russell Kinge76f4752011-11-23 17:44:05 +0000632 bool "Use S3C UART 0 for low-level debug"
633 help
634 Say Y here if you want the debug print routines to direct
635 their output to UART 0. The port must have been initialised
636 by the boot-loader before use.
637
638 The uncompressor code port configuration is now handled
639 by CONFIG_S3C_LOWLEVEL_UART_PORT.
640
641 config DEBUG_S3C_UART1
642 depends on PLAT_SAMSUNG
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100643 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
Russell Kinge76f4752011-11-23 17:44:05 +0000644 bool "Use S3C UART 1 for low-level debug"
645 help
646 Say Y here if you want the debug print routines to direct
647 their output to UART 1. The port must have been initialised
648 by the boot-loader before use.
649
650 The uncompressor code port configuration is now handled
651 by CONFIG_S3C_LOWLEVEL_UART_PORT.
652
653 config DEBUG_S3C_UART2
654 depends on PLAT_SAMSUNG
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100655 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
Russell Kinge76f4752011-11-23 17:44:05 +0000656 bool "Use S3C UART 2 for low-level debug"
657 help
658 Say Y here if you want the debug print routines to direct
659 their output to UART 2. The port must have been initialised
660 by the boot-loader before use.
661
662 The uncompressor code port configuration is now handled
663 by CONFIG_S3C_LOWLEVEL_UART_PORT.
664
Olof Johansson5fa23dd2012-11-22 14:24:04 +0900665 config DEBUG_S3C_UART3
666 depends on PLAT_SAMSUNG && ARCH_EXYNOS
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100667 select DEBUG_EXYNOS_UART
Olof Johansson5fa23dd2012-11-22 14:24:04 +0900668 bool "Use S3C UART 3 for low-level debug"
669 help
670 Say Y here if you want the debug print routines to direct
671 their output to UART 3. The port must have been initialised
672 by the boot-loader before use.
673
674 The uncompressor code port configuration is now handled
675 by CONFIG_S3C_LOWLEVEL_UART_PORT.
676
Rob Herring6111bf72012-09-06 14:11:28 -0500677 config DEBUG_SOCFPGA_UART
678 depends on ARCH_SOCFPGA
679 bool "Use SOCFPGA UART for low-level debug"
Russell King0b4cccb2013-07-07 11:42:46 +0100680 select DEBUG_UART_8250
Rob Herring6111bf72012-09-06 14:11:28 -0500681 help
682 Say Y here if you want kernel low-level debugging support
683 on SOCFPGA based platforms.
684
Stefan Roeseaa251152012-11-19 12:09:41 +0100685 config DEBUG_SUNXI_UART0
686 bool "Kernel low-level debugging messages via sunXi UART0"
687 depends on ARCH_SUNXI
Russell King4a0036472013-07-06 23:13:15 +0100688 select DEBUG_UART_8250
Stefan Roeseaa251152012-11-19 12:09:41 +0100689 help
690 Say Y here if you want kernel low-level debugging support
691 on Allwinner A1X based platforms on the UART0.
692
Maxime Ripardcb84fa12012-11-08 12:40:49 +0100693 config DEBUG_SUNXI_UART1
694 bool "Kernel low-level debugging messages via sunXi UART1"
695 depends on ARCH_SUNXI
Russell King4a0036472013-07-06 23:13:15 +0100696 select DEBUG_UART_8250
Maxime Ripardcb84fa12012-11-08 12:40:49 +0100697 help
698 Say Y here if you want kernel low-level debugging support
699 on Allwinner A1X based platforms on the UART1.
700
Russell Kingcce278d2013-07-06 14:23:30 +0100701 config TEGRA_DEBUG_UART_AUTO_ODMDATA
702 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
Stephen Warren46067802012-09-25 15:54:56 -0600703 depends on ARCH_TEGRA
Russell Kingcce278d2013-07-06 14:23:30 +0100704 select DEBUG_TEGRA_UART
705 help
706 Automatically determines which UART to use for low-level
707 debug based on the ODMDATA value. This value is part of
708 the BCT, and is written to the boot memory device using
709 nvflash, or other flashing tool. When bits 19:18 are 3,
710 then bits 17:15 indicate which UART to use; 0/1/2/3/4
711 are UART A/B/C/D/E.
712
713 config TEGRA_DEBUG_UARTA
714 bool "Kernel low-level debugging messages via Tegra UART A"
715 depends on ARCH_TEGRA
716 select DEBUG_TEGRA_UART
717 help
718 Say Y here if you want kernel low-level debugging support
719 on Tegra based platforms.
720
721 config TEGRA_DEBUG_UARTB
722 bool "Kernel low-level debugging messages via Tegra UART B"
723 depends on ARCH_TEGRA
724 select DEBUG_TEGRA_UART
725 help
726 Say Y here if you want kernel low-level debugging support
727 on Tegra based platforms.
728
729 config TEGRA_DEBUG_UARTC
730 bool "Kernel low-level debugging messages via Tegra UART C"
731 depends on ARCH_TEGRA
732 select DEBUG_TEGRA_UART
733 help
734 Say Y here if you want kernel low-level debugging support
735 on Tegra based platforms.
736
737 config TEGRA_DEBUG_UARTD
738 bool "Kernel low-level debugging messages via Tegra UART D"
739 depends on ARCH_TEGRA
740 select DEBUG_TEGRA_UART
741 help
742 Say Y here if you want kernel low-level debugging support
743 on Tegra based platforms.
744
745 config TEGRA_DEBUG_UARTE
746 bool "Kernel low-level debugging messages via Tegra UART E"
747 depends on ARCH_TEGRA
748 select DEBUG_TEGRA_UART
Stephen Warren46067802012-09-25 15:54:56 -0600749 help
750 Say Y here if you want kernel low-level debugging support
751 on Tegra based platforms.
752
Barry Song7f46a102012-12-20 19:45:25 +0800753 config DEBUG_SIRFPRIMA2_UART1
754 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
755 depends on ARCH_PRIMA2
756 help
757 Say Y here if you want the debug print routines to direct
758 their output to the uart1 port on SiRFprimaII devices.
759
760 config DEBUG_SIRFMARCO_UART1
761 bool "Kernel low-level debugging messages via SiRFmarco UART1"
762 depends on ARCH_MARCO
763 help
764 Say Y here if you want the debug print routines to direct
765 their output to the uart1 port on SiRFmarco devices.
766
Russell Kingcce278d2013-07-06 14:23:30 +0100767 config STIH41X_DEBUG_ASC2
768 bool "Use StiH415/416 ASC2 UART for low-level debug"
Arnd Bergmann5562b802013-07-05 16:08:44 +0200769 depends on ARCH_STI
Russell Kingcce278d2013-07-06 14:23:30 +0100770 select DEBUG_STI_UART
Arnd Bergmann5562b802013-07-05 16:08:44 +0200771 help
772 Say Y here if you want kernel low-level debugging support
Russell Kingcce278d2013-07-06 14:23:30 +0100773 on STiH415/416 based platforms like b2000, which has
774 default UART wired up to ASC2.
775
776 If unsure, say N.
777
778 config STIH41X_DEBUG_SBC_ASC1
779 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
780 depends on ARCH_STI
781 select DEBUG_STI_UART
782 help
783 Say Y here if you want kernel low-level debugging support
784 on STiH415/416 based platforms like b2020. which has
785 default UART wired up to SBC ASC1.
Arnd Bergmann5562b802013-07-05 16:08:44 +0200786
787 If unsure, say N.
788
Linus Walleijdd324da2013-05-02 16:34:19 +0200789 config DEBUG_U300_UART
790 bool "Kernel low-level debugging messages via U300 UART0"
791 depends on ARCH_U300
Russell King5c972af2013-07-07 12:32:16 +0100792 select DEBUG_UART_PL01X
Linus Walleijdd324da2013-05-02 16:34:19 +0200793 help
794 Say Y here if you want the debug print routines to direct
795 their output to the uart port on U300 devices.
796
Linus Walleijf87b95d2013-03-19 11:01:36 +0100797 config DEBUG_UX500_UART
798 depends on ARCH_U8500
799 bool "Use Ux500 UART for low-level debug"
800 help
801 Say Y here if you want kernel low-level debugging support
802 on Ux500 based platforms.
803
Pawel Moll1b820ea2012-07-11 17:07:25 +0100804 config DEBUG_VEXPRESS_UART0_DETECT
805 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
806 depends on ARCH_VEXPRESS && CPU_CP15_MMU
807 help
808 This option enables a simple heuristic which tries to determine
809 the motherboard's memory map variant (original or RS1) and then
810 choose the relevant UART0 base address.
811
812 Note that this will only work with standard A-class core tiles,
813 and may fail with non-standard SMM or custom software models.
814
815 config DEBUG_VEXPRESS_UART0_CA9
816 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
817 depends on ARCH_VEXPRESS
Russell King5c972af2013-07-07 12:32:16 +0100818 select DEBUG_UART_PL01X
Pawel Moll1b820ea2012-07-11 17:07:25 +0100819 help
820 This option selects UART0 at 0x10009000. Except for custom models,
821 this applies only to the V2P-CA9 tile.
822
823 config DEBUG_VEXPRESS_UART0_RS1
824 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
825 depends on ARCH_VEXPRESS
Russell King5c972af2013-07-07 12:32:16 +0100826 select DEBUG_UART_PL01X
Pawel Moll1b820ea2012-07-11 17:07:25 +0100827 help
828 This option selects UART0 at 0x1c090000. This applies to most
829 of the tiles using the RS1 memory map, including all new A-class
830 core tiles, FPGA-based SMMs and software models.
831
Jonathan Austined18bdc2012-08-30 13:46:44 +0100832 config DEBUG_VEXPRESS_UART0_CRX
833 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
834 depends on ARCH_VEXPRESS && !MMU
Russell King5c972af2013-07-07 12:32:16 +0100835 select DEBUG_UART_PL01X
Jonathan Austined18bdc2012-08-30 13:46:44 +0100836 help
837 This option selects UART0 at 0xb0090000. This is appropriate for
838 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
839
Tony Priskb61a2722012-12-28 12:09:18 +1300840 config DEBUG_VT8500_UART0
841 bool "Use UART0 on VIA/Wondermedia SoCs"
842 depends on ARCH_VT8500
843 help
844 This option selects UART0 on VIA/Wondermedia System-on-a-chip
845 devices, including VT8500, WM8505, WM8650 and WM8850.
846
Russell Kinge76f4752011-11-23 17:44:05 +0000847 config DEBUG_LL_UART_NONE
848 bool "No low-level debugging UART"
Rob Herring387798b2012-09-06 13:41:12 -0500849 depends on !ARCH_MULTIPLATFORM
Russell Kinge76f4752011-11-23 17:44:05 +0000850 help
851 Say Y here if your platform doesn't provide a UART option
Russell King730cc262013-07-07 11:02:00 +0100852 above. This relies on your platform choosing the right UART
Russell Kinge76f4752011-11-23 17:44:05 +0000853 definition internally in order for low-level debugging to
854 work.
855
856 config DEBUG_ICEDCC
857 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
858 help
859 Say Y here if you want the debug print routines to direct
860 their output to the EmbeddedICE macrocell's DCC channel using
861 co-processor 14. This is known to work on the ARM9 style ICE
862 channel and on the XScale with the PEEDI.
863
864 Note that the system will appear to hang during boot if there
865 is nothing connected to read from the DCC.
866
Russell Kingb0df8982012-03-27 11:30:31 +0100867 config DEBUG_SEMIHOSTING
Stephen Boyd62194bd2012-09-06 21:24:32 +0100868 bool "Kernel low-level debug output via semihosting I/O"
Russell Kingb0df8982012-03-27 11:30:31 +0100869 help
870 Semihosting enables code running on an ARM target to use
871 the I/O facilities on a host debugger/emulator through a
Stephen Boyd62194bd2012-09-06 21:24:32 +0100872 simple SVC call. The host debugger or emulator must have
Russell Kingb0df8982012-03-27 11:30:31 +0100873 semihosting enabled for the special svc call to be trapped
874 otherwise the kernel will crash.
875
Stephen Boyd62194bd2012-09-06 21:24:32 +0100876 This is known to work with OpenOCD, as well as
Russell Kingb0df8982012-03-27 11:30:31 +0100877 ARM's Fast Models, or any other controlling environment
878 that implements semihosting.
879
880 For more details about semihosting, please see
881 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
882
Russell Kingf8f12792013-07-07 15:29:38 +0100883 config DEBUG_LL_UART_8250
884 bool "Kernel low-level debugging via 8250 UART"
885 help
886 Say Y here if you wish the debug print routes to direct
887 their output to an 8250 UART. You can use this option
888 to provide the parameters for the 8250 UART rather than
889 selecting one of the platform specific options above if
890 you know the parameters for the port.
891
892 This option is preferred over the platform specific
893 options; the platform specific options are deprecated
894 and will be soon removed.
895
Uwe Kleine-König494e4922013-10-08 16:44:17 +0100896 config DEBUG_LL_UART_EFM32
897 bool "Kernel low-level debugging via efm32 UART"
898 depends on ARCH_EFM32
899 help
900 Say Y here if you want the debug print routines to direct
901 their output to an UART or USART port on efm32 based
902 machines. Use the following addresses for DEBUG_UART_PHYS:
903
904 0x4000c000 | USART0
905 0x4000c400 | USART1
906 0x4000c800 | USART2
907 0x4000e000 | UART0
908 0x4000e400 | UART1
909
Russell Kingf8f12792013-07-07 15:29:38 +0100910 config DEBUG_LL_UART_PL01X
911 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
912 help
913 Say Y here if you wish the debug print routes to direct
914 their output to a PL01x Primecell UART. You can use
915 this option to provide the parameters for the UART
916 rather than selecting one of the platform specific
917 options above if you know the parameters for the port.
918
919 This option is preferred over the platform specific
920 options; the platform specific options are deprecated
921 and will be soon removed.
922
Will Deacon17916b22011-09-01 18:58:51 +0100923endchoice
924
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100925config DEBUG_EXYNOS_UART
926 bool
927
Russell Kingcce278d2013-07-06 14:23:30 +0100928config DEBUG_OMAP2PLUS_UART
929 bool
930 depends on ARCH_OMAP2PLUS
931
Shawn Guof8c95fe2012-12-12 19:03:53 +0800932config DEBUG_IMX_UART_PORT
933 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
934 DEBUG_IMX25_UART || \
935 DEBUG_IMX21_IMX27_UART || \
936 DEBUG_IMX31_UART || \
937 DEBUG_IMX35_UART || \
Greg Ungererad364a72013-10-29 15:15:51 +1000938 DEBUG_IMX50_UART || \
Shawn Guof8c95fe2012-12-12 19:03:53 +0800939 DEBUG_IMX51_UART || \
Paul Bolle0c52db72013-03-11 14:16:00 +0100940 DEBUG_IMX53_UART || \
Shawn Guo34e8a162013-05-03 11:21:03 +0800941 DEBUG_IMX6Q_UART || \
942 DEBUG_IMX6SL_UART
Shawn Guo49c9e602012-10-08 13:44:29 +0800943 default 1
Shawn Guo287939a2013-03-13 10:52:49 +0800944 depends on ARCH_MXC
Shawn Guo49c9e602012-10-08 13:44:29 +0800945 help
946 Choose UART port on which kernel low-level debug messages
947 should be output.
948
Russell Kingcce278d2013-07-06 14:23:30 +0100949config DEBUG_TEGRA_UART
950 bool
951 depends on ARCH_TEGRA
Tony Lindgren808b7e02013-01-11 11:24:19 -0800952
Russell Kingcce278d2013-07-06 14:23:30 +0100953config DEBUG_STI_UART
954 bool
955 depends on ARCH_STI
Srinivas Kandagatla5026aec2013-06-25 12:15:32 +0100956
Rohit Vaswanic527c3b2013-10-17 22:07:27 +0100957config DEBUG_MSM_UART
958 bool
959 depends on ARCH_MSM
960
Rob Herring91a9fec2012-08-31 00:03:46 -0500961config DEBUG_LL_INCLUDE
962 string
Russell Kingf8f12792013-07-07 15:29:38 +0100963 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
964 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
Arnd Bergmanna2e40712013-03-04 18:03:10 +0100965 default "debug/exynos.S" if DEBUG_EXYNOS_UART
Uwe Kleine-König494e4922013-10-08 16:44:17 +0100966 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
Rob Herring91a9fec2012-08-31 00:03:46 -0500967 default "debug/icedcc.S" if DEBUG_ICEDCC
Shawn Guo6dde5ac2012-09-16 20:50:45 +0800968 default "debug/imx.S" if DEBUG_IMX1_UART || \
969 DEBUG_IMX25_UART || \
970 DEBUG_IMX21_IMX27_UART || \
Shawn Guo4ad625d2012-12-12 18:54:01 +0800971 DEBUG_IMX31_UART || \
972 DEBUG_IMX35_UART || \
Greg Ungererad364a72013-10-29 15:15:51 +1000973 DEBUG_IMX50_UART || \
Shawn Guo6dde5ac2012-09-16 20:50:45 +0800974 DEBUG_IMX51_UART || \
Fabio Estevam7356420c2013-01-22 10:40:55 -0200975 DEBUG_IMX53_UART ||\
Shawn Guo34e8a162013-05-03 11:21:03 +0800976 DEBUG_IMX6Q_UART || \
977 DEBUG_IMX6SL_UART
Rohit Vaswanic527c3b2013-10-17 22:07:27 +0100978 default "debug/msm.S" if DEBUG_MSM_UART
Tony Lindgren808b7e02013-01-11 11:24:19 -0800979 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
Arnd Bergmann67bdb282013-03-19 13:52:14 +0100980 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
Srinivas Kandagatla5026aec2013-06-25 12:15:32 +0100981 default "debug/sti.S" if DEBUG_STI_UART
Linus Torvalds150a8dc2013-05-04 12:34:30 -0700982 default "debug/tegra.S" if DEBUG_TEGRA_UART
983 default "debug/ux500.S" if DEBUG_UX500_UART
Russell King4e218b92013-07-07 12:36:46 +0100984 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
Shawn Guoc7c3eac2013-05-12 17:22:17 +0800985 default "debug/vf.S" if DEBUG_VF_UART
Tony Priskb61a2722012-12-28 12:09:18 +1300986 default "debug/vt8500.S" if DEBUG_VT8500_UART0
Josh Cartwright385f02b2012-11-19 10:16:01 -0600987 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
Rob Herring91a9fec2012-08-31 00:03:46 -0500988 default "mach/debug-macro.S"
989
Russell Kingf8f12792013-07-07 15:29:38 +0100990# Compatibility options for PL01x
Russell King5c972af2013-07-07 12:32:16 +0100991config DEBUG_UART_PL01X
992 def_bool ARCH_EP93XX || \
993 ARCH_INTEGRATOR || \
Russell King0dc0e472013-07-07 16:38:18 +0100994 ARCH_SPEAR3XX || \
995 ARCH_SPEAR6XX || \
996 ARCH_SPEAR13XX || \
Russell King5c972af2013-07-07 12:32:16 +0100997 ARCH_VERSATILE
998
Russell Kingf8f12792013-07-07 15:29:38 +0100999# Compatibility options for 8250
Russell King7610b602013-07-06 22:59:10 +01001000config DEBUG_UART_8250
Russell King4a0036472013-07-06 23:13:15 +01001001 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1002 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1003 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1004 ARCH_IOP33X || ARCH_IXP4XX || ARCH_KIRKWOOD || \
1005 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1006
Russell Kingc3faa9b2013-07-07 00:01:39 +01001007config DEBUG_UART_PHYS
1008 hex "Physical base address of debug UART"
Russell King97bd1a42013-07-07 16:18:34 +01001009 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
Russell Kingc3faa9b2013-07-07 00:01:39 +01001010 default 0x01c28000 if DEBUG_SUNXI_UART0
1011 default 0x01c28400 if DEBUG_SUNXI_UART1
Russell King97bd1a42013-07-07 16:18:34 +01001012 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1013 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
Russell Kingf2acf002013-07-07 16:05:49 +01001014 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1015 default 0x02531000 if DEBUG_KEYSTONE_UART1
Russell Kingc3faa9b2013-07-07 00:01:39 +01001016 default 0x03010fe0 if ARCH_RPC
Russell King97bd1a42013-07-07 16:18:34 +01001017 default 0x08108300 if DEBUG_DAVINCI_TNETV107X_UART1
Russell King5c972af2013-07-07 12:32:16 +01001018 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
1019 DEBUG_VEXPRESS_UART0_CA9
1020 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
Russell Kingc3faa9b2013-07-07 00:01:39 +01001021 default 0x10124000 if DEBUG_RK3X_UART0
1022 default 0x10126000 if DEBUG_RK3X_UART1
Russell King5c972af2013-07-07 12:32:16 +01001023 default 0x101f1000 if ARCH_VERSATILE
1024 default 0x101fb000 if DEBUG_NOMADIK_UART
1025 default 0x16000000 if ARCH_INTEGRATOR
1026 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
Russell Kingc3faa9b2013-07-07 00:01:39 +01001027 default 0x20060000 if DEBUG_RK29_UART0
1028 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1029 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
Russell King5c972af2013-07-07 12:32:16 +01001030 default 0x20201000 if DEBUG_BCM2835
Christian Daudt753d1242013-12-23 09:00:01 +01001031 default 0x3e000000 if DEBUG_BCM_KONA_UART
Uwe Kleine-König494e4922013-10-08 16:44:17 +01001032 default 0x4000e400 if DEBUG_LL_UART_EFM32
Russell Kingc3faa9b2013-07-07 00:01:39 +01001033 default 0x40090000 if ARCH_LPC32XX
1034 default 0x40100000 if DEBUG_PXA_UART1
1035 default 0x42000000 if ARCH_GEMINI
1036 default 0x7c0003f8 if FOOTBRIDGE
Russell King0b4cccb2013-07-07 11:42:46 +01001037 default 0x80230000 if DEBUG_PICOXCELL_UART
Russell King5c972af2013-07-07 12:32:16 +01001038 default 0x80070000 if DEBUG_IMX23_UART
1039 default 0x80074000 if DEBUG_IMX28_UART
1040 default 0x808c0000 if ARCH_EP93XX
1041 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1042 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1043 default 0xc0013000 if DEBUG_U300_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001044 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1045 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
Russell King0dc0e472013-07-07 16:38:18 +01001046 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001047 default 0xd0012000 if DEBUG_MVEBU_UART
1048 default 0xd4017000 if DEBUG_MMP_UART2
1049 default 0xd4018000 if DEBUG_MMP_UART3
Russell King0dc0e472013-07-07 16:38:18 +01001050 default 0xe0000000 if ARCH_SPEAR13XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001051 default 0xf0000be0 if ARCH_EBSA110
1052 default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1053 default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
1054 ARCH_ORION5X
Sebastian Hesselbarthcaad0b42013-09-09 14:10:54 +02001055 default 0xf7fc9000 if DEBUG_BERLIN_UART
Haojian Zhuang8d258be2013-08-24 06:58:39 +01001056 default 0xf8b00000 if DEBUG_HI3716_UART
1057 default 0xfcb00000 if DEBUG_HI3620_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001058 default 0xfe800000 if ARCH_IOP32X
Russell King0b4cccb2013-07-07 11:42:46 +01001059 default 0xffc02000 if DEBUG_SOCFPGA_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001060 default 0xffd82340 if ARCH_IOP13XX
Russell King5c972af2013-07-07 12:32:16 +01001061 default 0xfff36000 if DEBUG_HIGHBANK_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001062 default 0xfffff700 if ARCH_IOP33X
Russell Kingf8f12792013-07-07 15:29:38 +01001063 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
Uwe Kleine-König494e4922013-10-08 16:44:17 +01001064 DEBUG_LL_UART_EFM32 || \
Russell Kingf8f12792013-07-07 15:29:38 +01001065 DEBUG_UART_8250 || DEBUG_UART_PL01X
Russell Kingc3faa9b2013-07-07 00:01:39 +01001066
1067config DEBUG_UART_VIRT
1068 hex "Virtual base address of debug UART"
1069 default 0xe0010fe0 if ARCH_RPC
1070 default 0xf0000be0 if ARCH_EBSA110
Russell King5c972af2013-07-07 12:32:16 +01001071 default 0xf0009000 if DEBUG_CNS3XXX
1072 default 0xf01fb000 if DEBUG_NOMADIK_UART
1073 default 0xf0201000 if DEBUG_BCM2835
1074 default 0xf11f1000 if ARCH_VERSATILE
1075 default 0xf1600000 if ARCH_INTEGRATOR
Russell Kingc3faa9b2013-07-07 00:01:39 +01001076 default 0xf1c28000 if DEBUG_SUNXI_UART0
1077 default 0xf1c28400 if DEBUG_SUNXI_UART1
1078 default 0xf2100000 if DEBUG_PXA_UART1
1079 default 0xf4090000 if ARCH_LPC32XX
1080 default 0xf4200000 if ARCH_GEMINI
Sebastian Hesselbarthcaad0b42013-09-09 14:10:54 +02001081 default 0xf7fc9000 if DEBUG_BERLIN_UART
Russell King5c972af2013-07-07 12:32:16 +01001082 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1083 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1084 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1085 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
Russell King0dc0e472013-07-07 16:38:18 +01001086 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1087 default 0xfd000000 if ARCH_SPEAR13XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001088 default 0xfd012000 if ARCH_MV78XX0
1089 default 0xfde12000 if ARCH_DOVE
1090 default 0xfe012000 if ARCH_ORION5X
1091 default 0xfe017000 if DEBUG_MMP_UART2
1092 default 0xfe018000 if DEBUG_MMP_UART3
Russell King5c972af2013-07-07 12:32:16 +01001093 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
Russell King0b4cccb2013-07-07 11:42:46 +01001094 default 0xfe230000 if DEBUG_PICOXCELL_UART
Christian Daudt753d1242013-12-23 09:00:01 +01001095 default 0xfe300000 if DEBUG_BCM_KONA_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001096 default 0xfe800000 if ARCH_IOP32X
Haojian Zhuang8d258be2013-08-24 06:58:39 +01001097 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001098 default 0xfeb24000 if DEBUG_RK3X_UART0
1099 default 0xfeb26000 if DEBUG_RK3X_UART1
Russell Kingf2acf002013-07-07 16:05:49 +01001100 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1101 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
Russell Kingc3faa9b2013-07-07 00:01:39 +01001102 default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1103 default 0xfed60000 if DEBUG_RK29_UART0
1104 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1105 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
Russell King0b4cccb2013-07-07 11:42:46 +01001106 default 0xfec02000 if DEBUG_SOCFPGA_UART
Russell King97bd1a42013-07-07 16:18:34 +01001107 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1108 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1109 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
Russell Kingc3faa9b2013-07-07 00:01:39 +01001110 default 0xfed12000 if ARCH_KIRKWOOD
Russell King5c972af2013-07-07 12:32:16 +01001111 default 0xfedc0000 if ARCH_EP93XX
Russell Kingc3faa9b2013-07-07 00:01:39 +01001112 default 0xfee003f8 if FOOTBRIDGE
Russell King97bd1a42013-07-07 16:18:34 +01001113 default 0xfee08300 if DEBUG_DAVINCI_TNETV107X_UART1
Russell King5c972af2013-07-07 12:32:16 +01001114 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
Rob Herring5927c4d2013-08-27 14:32:49 +01001115 default 0xfef36000 if DEBUG_HIGHBANK_UART
Russell Kingc3faa9b2013-07-07 00:01:39 +01001116 default 0xfee82340 if ARCH_IOP13XX
1117 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1118 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1119 default 0xfefff700 if ARCH_IOP33X
Russell King5c972af2013-07-07 12:32:16 +01001120 default 0xff003000 if DEBUG_U300_UART
1121 default DEBUG_UART_PHYS if !MMU
Russell Kingf8f12792013-07-07 15:29:38 +01001122 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1123 DEBUG_UART_8250 || DEBUG_UART_PL01X
Russell Kingc3faa9b2013-07-07 00:01:39 +01001124
Russell King4a0036472013-07-06 23:13:15 +01001125config DEBUG_UART_8250_SHIFT
1126 int "Register offset shift for the 8250 debug UART"
Russell Kingf8f12792013-07-07 15:29:38 +01001127 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
Russell King4a0036472013-07-06 23:13:15 +01001128 default 0 if FOOTBRIDGE || ARCH_IOP32X
1129 default 2
Russell King7610b602013-07-06 22:59:10 +01001130
Russell King0b4cccb2013-07-07 11:42:46 +01001131config DEBUG_UART_8250_WORD
1132 bool "Use 32-bit accesses for 8250 UART"
Russell Kingf8f12792013-07-07 15:29:38 +01001133 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
Russell King0b4cccb2013-07-07 11:42:46 +01001134 depends on DEBUG_UART_8250_SHIFT >= 2
Russell Kingf2acf002013-07-07 16:05:49 +01001135 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
Russell King97bd1a42013-07-07 16:18:34 +01001136 ARCH_KEYSTONE || \
1137 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
Christian Daudt753d1242013-12-23 09:00:01 +01001138 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_DAVINCI_TNETV107X_UART1 || \
1139 DEBUG_BCM_KONA_UART
Russell King0b4cccb2013-07-07 11:42:46 +01001140
Russell King7610b602013-07-06 22:59:10 +01001141config DEBUG_UART_8250_FLOW_CONTROL
1142 bool "Enable flow control for 8250 UART"
Russell Kingf8f12792013-07-07 15:29:38 +01001143 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
Russell King7610b602013-07-06 22:59:10 +01001144 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1145
Shawn Guo3b4af9b2013-03-14 08:48:06 +01001146config DEBUG_UNCOMPRESS
1147 bool
Olof Johansson8b2496a2013-08-13 23:33:07 -07001148 depends on ARCH_MULTIPLATFORM || ARCH_MSM
Russell Kingb6992fa2013-07-17 17:54:27 +01001149 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
Stephen Warrenae3c99a2013-08-02 20:53:37 +01001150 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
Russell Kingb6992fa2013-07-17 17:54:27 +01001151 help
1152 This option influences the normal decompressor output for
1153 multiplatform kernels. Normally, multiplatform kernels disable
1154 decompressor output because it is not possible to know where to
1155 send the decompressor output.
1156
1157 When this option is set, the selected DEBUG_LL output method
1158 will be re-used for normal decompressor output on multiplatform
1159 kernels.
1160
Shawn Guo3b4af9b2013-03-14 08:48:06 +01001161
Shawn Guo615967b2013-03-14 08:47:27 +01001162config UNCOMPRESS_INCLUDE
1163 string
Stephen Boyd6d079172013-07-24 13:54:28 -07001164 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM
Shawn Guo615967b2013-03-14 08:47:27 +01001165 default "mach/uncompress.h"
1166
Catalin Marinas93fd03a2009-12-09 10:02:18 +00001167config EARLY_PRINTK
1168 bool "Early printk"
1169 depends on DEBUG_LL
1170 help
1171 Say Y here if you want to have an early console using the
1172 kernel low-level debugging functions. Add earlyprintk to your
1173 kernel parameters to enable this console.
1174
Alexander Shishkinc5d6c772009-12-01 14:00:51 +01001175config OC_ETM
1176 bool "On-chip ETM and ETB"
Arnd Bergmann53eebb02011-09-07 10:02:35 +02001177 depends on ARM_AMBA
Alexander Shishkinc5d6c772009-12-01 14:00:51 +01001178 help
1179 Enables the on-chip embedded trace macrocell and embedded trace
1180 buffer driver that will allow you to collect traces of the
1181 kernel code.
1182
Jon Medhurst4189bc72011-08-27 12:36:58 +01001183config ARM_KPROBES_TEST
1184 tristate "Kprobes test module"
1185 depends on KPROBES && MODULES
1186 help
1187 Perform tests of kprobes API and instruction set simulation.
1188
Will Deacon575320d2012-07-06 15:43:03 +01001189config PID_IN_CONTEXTIDR
1190 bool "Write the current PID to the CONTEXTIDR register"
1191 depends on CPU_COPY_V6
1192 help
1193 Enabling this option causes the kernel to write the current PID to
1194 the PROCID field of the CONTEXTIDR register, at the expense of some
1195 additional instructions during context switch. Say Y here only if you
1196 are planning to use hardware trace tools with this kernel.
1197
Laura Abbottdca9aa92013-06-17 10:29:14 -07001198config DEBUG_SET_MODULE_RONX
1199 bool "Set loadable kernel module data as NX and text as RO"
1200 depends on MODULES
1201 ---help---
1202 This option helps catch unintended modifications to loadable
1203 kernel module's text and read-only data. It also prevents execution
1204 of module data. Such protection may interfere with run-time code
1205 patching and dynamic kernel tracing - and they might also protect
1206 against certain classes of kernel exploits.
1207 If in doubt, say "N".
1208
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209endmenu