Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | menu "Kernel hacking" |
2 | ||
3 | source "lib/Kconfig.debug" | |
4 | ||
087aaffc NP |
5 | config STRICT_DEVMEM |
6 | bool "Filter access to /dev/mem" | |
7 | depends on MMU | |
8 | ---help--- | |
9 | If this option is disabled, you allow userspace (root) access to all | |
10 | of memory, including kernel and userspace memory. Accidental | |
11 | access to this is obviously disastrous, but specific access can | |
12 | be used by people debugging the kernel. | |
13 | ||
14 | If this option is switched on, the /dev/mem file only allows | |
15 | userspace access to memory mapped peripherals. | |
16 | ||
17 | If in doubt, say Y. | |
18 | ||
adf8b37b | 19 | # RMK wants arm kernels compiled with frame pointers or stack unwinding. |
1da177e4 LT |
20 | # If you know what you are doing and are willing to live without stack |
21 | # traces, you can get a slightly smaller kernel by setting this option to | |
22 | # n, but then RMK will have to kill you ;). | |
23 | config FRAME_POINTER | |
24 | bool | |
16c79651 | 25 | depends on !THUMB2_KERNEL |
0e341af8 | 26 | default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER |
1da177e4 LT |
27 | help |
28 | If you say N here, the resulting kernel will be slightly smaller and | |
adf8b37b CM |
29 | faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled, |
30 | when a problem occurs with the kernel, the information that is | |
31 | reported is severely limited. | |
32 | ||
33 | config ARM_UNWIND | |
4a50bfe3 | 34 | bool "Enable stack unwinding support (EXPERIMENTAL)" |
d6f94fa0 | 35 | depends on AEABI |
adf8b37b CM |
36 | default y |
37 | help | |
38 | This option enables stack unwinding support in the kernel | |
39 | using the information automatically generated by the | |
40 | compiler. The resulting kernel image is slightly bigger but | |
41 | the performance is not affected. Currently, this feature | |
42 | only works with EABI compilers. If unsure say Y. | |
1da177e4 | 43 | |
09bfafac RV |
44 | config OLD_MCOUNT |
45 | bool | |
46 | depends on FUNCTION_TRACER && FRAME_POINTER | |
47 | default y | |
48 | ||
1da177e4 LT |
49 | config DEBUG_USER |
50 | bool "Verbose user fault messages" | |
51 | help | |
52 | When a user program crashes due to an exception, the kernel can | |
53 | print a brief message explaining what the problem was. This is | |
54 | sometimes helpful for debugging but serves no purpose on a | |
55 | production system. Most people should say N here. | |
56 | ||
57 | In addition, you need to pass user_debug=N on the kernel command | |
58 | line to enable this feature. N consists of the sum of: | |
59 | ||
60 | 1 - undefined instruction events | |
61 | 2 - system calls | |
62 | 4 - invalid data aborts | |
63 | 8 - SIGSEGV faults | |
64 | 16 - SIGBUS faults | |
65 | ||
1da177e4 LT |
66 | # These options are only for real kernel hackers who want to get their hands dirty. |
67 | config DEBUG_LL | |
4f5ef922 | 68 | bool "Kernel low-level debugging functions (read help!)" |
1da177e4 LT |
69 | depends on DEBUG_KERNEL |
70 | help | |
35efb606 | 71 | Say Y here to include definitions of printascii, printch, printhex |
1da177e4 LT |
72 | in the kernel. This is helpful if you are debugging code that |
73 | executes before the console is initialized. | |
74 | ||
4f5ef922 WD |
75 | Note that selecting this option will limit the kernel to a single |
76 | UART definition, as specified below. Attempting to boot the kernel | |
77 | image on a different platform *will not work*, so this option should | |
78 | not be enabled for kernels that are intended to be portable. | |
79 | ||
17916b28 WD |
80 | choice |
81 | prompt "Kernel low-level debugging port" | |
82 | depends on DEBUG_LL | |
83 | ||
13079a73 JCPV |
84 | config AT91_DEBUG_LL_DBGU0 |
85 | bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl" | |
86 | depends on HAVE_AT91_DBGU0 | |
87 | ||
88 | config AT91_DEBUG_LL_DBGU1 | |
9918ceaf | 89 | bool "Kernel low-level debugging on 9263 and 9g45" |
13079a73 JCPV |
90 | depends on HAVE_AT91_DBGU1 |
91 | ||
f1ac922d SW |
92 | config DEBUG_BCM2835 |
93 | bool "Kernel low-level debugging on BCM2835 PL011 UART" | |
94 | depends on ARCH_BCM2835 | |
95 | ||
164acf96 SB |
96 | config DEBUG_CLPS711X_UART1 |
97 | bool "Kernel low-level debugging messages via UART1" | |
98 | depends on ARCH_CLPS711X | |
99 | help | |
100 | Say Y here if you want the debug print routines to direct | |
101 | their output to the first serial port on these devices. | |
17916b28 WD |
102 | |
103 | config DEBUG_CLPS711X_UART2 | |
104 | bool "Kernel low-level debugging messages via UART2" | |
105 | depends on ARCH_CLPS711X | |
106 | help | |
107 | Say Y here if you want the debug print routines to direct | |
108 | their output to the second serial port on these devices. | |
17916b28 | 109 | |
29c9b7be AB |
110 | config DEBUG_CNS3XXX |
111 | bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx" | |
112 | depends on ARCH_CNS3XXX | |
113 | help | |
114 | Say Y here if you want the debug print routines to direct | |
115 | their output to the CNS3xxx UART0. | |
116 | ||
477099f1 UKK |
117 | config DEBUG_DAVINCI_DA8XX_UART1 |
118 | bool "Kernel low-level debugging on DaVinci DA8XX using UART1" | |
119 | depends on ARCH_DAVINCI_DA8XX | |
120 | help | |
121 | Say Y here if you want the debug print routines to direct | |
122 | their output to UART1 serial port on DaVinci DA8XX devices. | |
123 | ||
124 | config DEBUG_DAVINCI_DA8XX_UART2 | |
125 | bool "Kernel low-level debugging on DaVinci DA8XX using UART2" | |
126 | depends on ARCH_DAVINCI_DA8XX | |
127 | help | |
128 | Say Y here if you want the debug print routines to direct | |
129 | their output to UART2 serial port on DaVinci DA8XX devices. | |
130 | ||
131 | config DEBUG_DAVINCI_DMx_UART0 | |
132 | bool "Kernel low-level debugging on DaVinci DMx using UART0" | |
133 | depends on ARCH_DAVINCI_DMx | |
134 | help | |
135 | Say Y here if you want the debug print routines to direct | |
136 | their output to UART0 serial port on DaVinci DMx devices. | |
137 | ||
138 | config DEBUG_DAVINCI_TNETV107X_UART1 | |
139 | bool "Kernel low-level debugging on DaVinci TNETV107x using UART1" | |
140 | depends on ARCH_DAVINCI_TNETV107X | |
141 | help | |
142 | Say Y here if you want the debug print routines to direct | |
143 | their output to UART1 serial port on DaVinci TNETV107X | |
144 | devices. | |
145 | ||
aaf5e0be NB |
146 | config DEBUG_ZYNQ_UART0 |
147 | bool "Kernel low-level debugging on Xilinx Zynq using UART0" | |
148 | depends on ARCH_ZYNQ | |
149 | help | |
150 | Say Y here if you want the debug print routines to direct | |
151 | their output to UART0 on the Zynq platform. | |
152 | ||
153 | config DEBUG_ZYNQ_UART1 | |
154 | bool "Kernel low-level debugging on Xilinx Zynq using UART1" | |
155 | depends on ARCH_ZYNQ | |
156 | help | |
157 | Say Y here if you want the debug print routines to direct | |
158 | their output to UART1 on the Zynq platform. | |
159 | ||
160 | If you have a ZC702 board and want early boot messages to | |
161 | appear on the USB serial adaptor, select this option. | |
162 | ||
e76f4750 RK |
163 | config DEBUG_DC21285_PORT |
164 | bool "Kernel low-level debugging messages via footbridge serial port" | |
165 | depends on FOOTBRIDGE | |
166 | help | |
167 | Say Y here if you want the debug print routines to direct | |
168 | their output to the serial port in the DC21285 (Footbridge). | |
169 | ||
170 | config DEBUG_FOOTBRIDGE_COM1 | |
171 | bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" | |
172 | depends on FOOTBRIDGE | |
173 | help | |
174 | Say Y here if you want the debug print routines to direct | |
175 | their output to the 8250 at PCI COM1. | |
176 | ||
220e6cf7 RH |
177 | config DEBUG_HIGHBANK_UART |
178 | bool "Kernel low-level debugging messages via Highbank UART" | |
179 | depends on ARCH_HIGHBANK | |
180 | help | |
181 | Say Y here if you want the debug print routines to direct | |
182 | their output to the UART on Highbank based devices. | |
183 | ||
f350b861 SG |
184 | config DEBUG_IMX1_UART |
185 | bool "i.MX1 Debug UART" | |
186 | depends on SOC_IMX1 | |
187 | help | |
188 | Say Y here if you want kernel low-level debugging support | |
189 | on i.MX1. | |
190 | ||
191 | config DEBUG_IMX23_UART | |
192 | bool "i.MX23 Debug UART" | |
193 | depends on SOC_IMX23 | |
194 | help | |
195 | Say Y here if you want kernel low-level debugging support | |
196 | on i.MX23. | |
197 | ||
198 | config DEBUG_IMX25_UART | |
199 | bool "i.MX25 Debug UART" | |
200 | depends on SOC_IMX25 | |
201 | help | |
202 | Say Y here if you want kernel low-level debugging support | |
203 | on i.MX25. | |
204 | ||
205 | config DEBUG_IMX21_IMX27_UART | |
206 | bool "i.MX21 and i.MX27 Debug UART" | |
207 | depends on SOC_IMX21 || SOC_IMX27 | |
208 | help | |
209 | Say Y here if you want kernel low-level debugging support | |
210 | on i.MX21 or i.MX27. | |
211 | ||
212 | config DEBUG_IMX28_UART | |
213 | bool "i.MX28 Debug UART" | |
214 | depends on SOC_IMX28 | |
215 | help | |
216 | Say Y here if you want kernel low-level debugging support | |
217 | on i.MX28. | |
218 | ||
4ad625d4 SG |
219 | config DEBUG_IMX31_UART |
220 | bool "i.MX31 Debug UART" | |
221 | depends on SOC_IMX31 | |
f350b861 SG |
222 | help |
223 | Say Y here if you want kernel low-level debugging support | |
4ad625d4 SG |
224 | on i.MX31. |
225 | ||
226 | config DEBUG_IMX35_UART | |
227 | bool "i.MX35 Debug UART" | |
228 | depends on SOC_IMX35 | |
229 | help | |
230 | Say Y here if you want kernel low-level debugging support | |
231 | on i.MX35. | |
f350b861 SG |
232 | |
233 | config DEBUG_IMX51_UART | |
234 | bool "i.MX51 Debug UART" | |
235 | depends on SOC_IMX51 | |
236 | help | |
237 | Say Y here if you want kernel low-level debugging support | |
238 | on i.MX51. | |
239 | ||
7356420c FE |
240 | config DEBUG_IMX53_UART |
241 | bool "i.MX53 Debug UART" | |
242 | depends on SOC_IMX53 | |
f350b861 SG |
243 | help |
244 | Say Y here if you want kernel low-level debugging support | |
7356420c | 245 | on i.MX53. |
f350b861 | 246 | |
49c9e60e | 247 | config DEBUG_IMX6Q_UART |
3c03a2fe | 248 | bool "i.MX6Q/DL Debug UART" |
785d7fab DB |
249 | depends on SOC_IMX6Q |
250 | help | |
251 | Say Y here if you want kernel low-level debugging support | |
3c03a2fe | 252 | on i.MX6Q/DL. |
bac89d75 | 253 | |
34e8a16b SG |
254 | config DEBUG_IMX6SL_UART |
255 | bool "i.MX6SL Debug UART" | |
256 | depends on SOC_IMX6SL | |
257 | help | |
258 | Say Y here if you want kernel low-level debugging support | |
259 | on i.MX6SL. | |
260 | ||
828989ad SS |
261 | config DEBUG_KEYSTONE_UART0 |
262 | bool "Kernel low-level debugging on KEYSTONE2 using UART0" | |
263 | depends on ARCH_KEYSTONE | |
264 | help | |
265 | Say Y here if you want the debug print routines to direct | |
266 | their output to UART0 serial port on KEYSTONE2 devices. | |
267 | ||
268 | config DEBUG_KEYSTONE_UART1 | |
269 | bool "Kernel low-level debugging on KEYSTONE2 using UART1" | |
270 | depends on ARCH_KEYSTONE | |
271 | help | |
272 | Say Y here if you want the debug print routines to direct | |
273 | their output to UART1 serial port on KEYSTONE2 devices. | |
274 | ||
fa4cd2a8 HZ |
275 | config DEBUG_MMP_UART2 |
276 | bool "Kernel low-level debugging message via MMP UART2" | |
277 | depends on ARCH_MMP | |
278 | help | |
279 | Say Y here if you want kernel low-level debugging support | |
280 | on MMP UART2. | |
281 | ||
282 | config DEBUG_MMP_UART3 | |
283 | bool "Kernel low-level debugging message via MMP UART3" | |
284 | depends on ARCH_MMP | |
285 | help | |
286 | Say Y here if you want kernel low-level debugging support | |
287 | on MMP UART3. | |
288 | ||
e76f4750 RK |
289 | config DEBUG_MSM_UART1 |
290 | bool "Kernel low-level debugging messages via MSM UART1" | |
291 | depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50 | |
952aeeb2 WD |
292 | help |
293 | Say Y here if you want the debug print routines to direct | |
e76f4750 | 294 | their output to the first serial port on MSM devices. |
952aeeb2 | 295 | |
e76f4750 RK |
296 | config DEBUG_MSM_UART2 |
297 | bool "Kernel low-level debugging messages via MSM UART2" | |
298 | depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50 | |
952aeeb2 WD |
299 | help |
300 | Say Y here if you want the debug print routines to direct | |
e76f4750 | 301 | their output to the second serial port on MSM devices. |
952aeeb2 | 302 | |
e76f4750 RK |
303 | config DEBUG_MSM_UART3 |
304 | bool "Kernel low-level debugging messages via MSM UART3" | |
305 | depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50 | |
306 | help | |
307 | Say Y here if you want the debug print routines to direct | |
308 | their output to the third serial port on MSM devices. | |
952aeeb2 | 309 | |
e76f4750 RK |
310 | config DEBUG_MSM8660_UART |
311 | bool "Kernel low-level debugging messages via MSM 8660 UART" | |
312 | depends on ARCH_MSM8X60 | |
313 | select MSM_HAS_DEBUG_UART_HS | |
952aeeb2 WD |
314 | help |
315 | Say Y here if you want the debug print routines to direct | |
e76f4750 | 316 | their output to the serial port on MSM 8660 devices. |
952aeeb2 | 317 | |
e76f4750 RK |
318 | config DEBUG_MSM8960_UART |
319 | bool "Kernel low-level debugging messages via MSM 8960 UART" | |
320 | depends on ARCH_MSM8960 | |
321 | select MSM_HAS_DEBUG_UART_HS | |
322 | help | |
323 | Say Y here if you want the debug print routines to direct | |
324 | their output to the serial port on MSM 8960 devices. | |
952aeeb2 | 325 | |
bfd5af99 | 326 | config DEBUG_MVEBU_UART |
c2804cd6 | 327 | bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)" |
bfd5af99 RH |
328 | depends on ARCH_MVEBU |
329 | help | |
330 | Say Y here if you want kernel low-level debugging support | |
331 | on MVEBU based platforms. | |
332 | ||
c2804cd6 TP |
333 | This option should be used with the old bootloaders |
334 | that left the internal registers mapped at | |
335 | 0xd0000000. As of today, this is the case on | |
336 | platforms such as the Globalscale Mirabox or the | |
337 | Plathome OpenBlocks AX3, when using the original | |
338 | bootloader. | |
339 | ||
340 | If the wrong DEBUG_MVEBU_UART* option is selected, | |
341 | when u-boot hands over to the kernel, the system | |
342 | silently crashes, with no serial output at all. | |
343 | ||
344 | config DEBUG_MVEBU_UART_ALTERNATE | |
345 | bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)" | |
346 | depends on ARCH_MVEBU | |
347 | help | |
348 | Say Y here if you want kernel low-level debugging support | |
349 | on MVEBU based platforms. | |
350 | ||
351 | This option should be used with the new bootloaders | |
352 | that remap the internal registers at 0xf1000000. | |
353 | ||
354 | If the wrong DEBUG_MVEBU_UART* option is selected, | |
355 | when u-boot hands over to the kernel, the system | |
356 | silently crashes, with no serial output at all. | |
357 | ||
266c3479 LW |
358 | config DEBUG_NOMADIK_UART |
359 | bool "Kernel low-level debugging messages via NOMADIK UART" | |
360 | depends on ARCH_NOMADIK | |
361 | help | |
362 | Say Y here if you want kernel low-level debugging support | |
363 | on NOMADIK based platforms. | |
364 | ||
9851ca57 DT |
365 | config DEBUG_NSPIRE_CLASSIC_UART |
366 | bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" | |
367 | depends on ARCH_NSPIRE | |
368 | help | |
369 | Say Y here if you want kernel low-level debugging support | |
370 | on TI-NSPIRE classic models. | |
371 | ||
372 | config DEBUG_NSPIRE_CX_UART | |
373 | bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" | |
374 | depends on ARCH_NSPIRE | |
375 | help | |
376 | Say Y here if you want kernel low-level debugging support | |
377 | on TI-NSPIRE CX models. | |
378 | ||
808b7e07 TL |
379 | config DEBUG_OMAP2PLUS_UART |
380 | bool "Kernel low-level debugging messages via OMAP2PLUS UART" | |
381 | depends on ARCH_OMAP2PLUS | |
382 | help | |
383 | Say Y here if you want kernel low-level debugging support | |
384 | on OMAP2PLUS based platforms. | |
385 | ||
59bba2a9 RH |
386 | config DEBUG_PICOXCELL_UART |
387 | depends on ARCH_PICOXCELL | |
388 | bool "Use PicoXcell UART for low-level debug" | |
389 | help | |
390 | Say Y here if you want kernel low-level debugging support | |
391 | on PicoXcell based platforms. | |
392 | ||
0a43cd3b HZ |
393 | config DEBUG_PXA_UART1 |
394 | depends on ARCH_PXA | |
395 | bool "Use PXA UART1 for low-level debug" | |
396 | help | |
397 | Say Y here if you want kernel low-level debugging support | |
398 | on PXA UART1. | |
399 | ||
1285b8f8 WD |
400 | config DEBUG_REALVIEW_STD_PORT |
401 | bool "RealView Default UART" | |
402 | depends on ARCH_REALVIEW | |
403 | help | |
404 | Say Y here if you want the debug print routines to direct | |
405 | their output to the serial port on RealView EB, PB11MP, PBA8 | |
406 | and PBX platforms. | |
407 | ||
408 | config DEBUG_REALVIEW_PB1176_PORT | |
409 | bool "RealView PB1176 UART" | |
410 | depends on MACH_REALVIEW_PB1176 | |
411 | help | |
412 | Say Y here if you want the debug print routines to direct | |
413 | their output to the standard serial port on the RealView | |
414 | PB1176 platform. | |
415 | ||
38bd6892 HS |
416 | config DEBUG_ROCKCHIP_UART |
417 | bool "Kernel low-level debugging messages via Rockchip UART" | |
418 | depends on ARCH_ROCKCHIP | |
419 | help | |
420 | Say Y here if you want kernel low-level debugging support | |
421 | on Rockchip based platforms. | |
422 | ||
e76f4750 RK |
423 | config DEBUG_S3C_UART0 |
424 | depends on PLAT_SAMSUNG | |
a2e40710 | 425 | select DEBUG_EXYNOS_UART if ARCH_EXYNOS |
e76f4750 | 426 | bool "Use S3C UART 0 for low-level debug" |
650e3f0d SB |
427 | help |
428 | Say Y here if you want the debug print routines to direct | |
e76f4750 RK |
429 | their output to UART 0. The port must have been initialised |
430 | by the boot-loader before use. | |
650e3f0d | 431 | |
e76f4750 RK |
432 | The uncompressor code port configuration is now handled |
433 | by CONFIG_S3C_LOWLEVEL_UART_PORT. | |
434 | ||
435 | config DEBUG_S3C_UART1 | |
436 | depends on PLAT_SAMSUNG | |
a2e40710 | 437 | select DEBUG_EXYNOS_UART if ARCH_EXYNOS |
e76f4750 | 438 | bool "Use S3C UART 1 for low-level debug" |
650e3f0d SB |
439 | help |
440 | Say Y here if you want the debug print routines to direct | |
e76f4750 RK |
441 | their output to UART 1. The port must have been initialised |
442 | by the boot-loader before use. | |
650e3f0d | 443 | |
e76f4750 RK |
444 | The uncompressor code port configuration is now handled |
445 | by CONFIG_S3C_LOWLEVEL_UART_PORT. | |
446 | ||
447 | config DEBUG_S3C_UART2 | |
448 | depends on PLAT_SAMSUNG | |
a2e40710 | 449 | select DEBUG_EXYNOS_UART if ARCH_EXYNOS |
e76f4750 | 450 | bool "Use S3C UART 2 for low-level debug" |
650e3f0d SB |
451 | help |
452 | Say Y here if you want the debug print routines to direct | |
e76f4750 RK |
453 | their output to UART 2. The port must have been initialised |
454 | by the boot-loader before use. | |
650e3f0d | 455 | |
e76f4750 RK |
456 | The uncompressor code port configuration is now handled |
457 | by CONFIG_S3C_LOWLEVEL_UART_PORT. | |
458 | ||
5fa23dde OJ |
459 | config DEBUG_S3C_UART3 |
460 | depends on PLAT_SAMSUNG && ARCH_EXYNOS | |
a2e40710 | 461 | select DEBUG_EXYNOS_UART |
5fa23dde OJ |
462 | bool "Use S3C UART 3 for low-level debug" |
463 | help | |
464 | Say Y here if you want the debug print routines to direct | |
465 | their output to UART 3. The port must have been initialised | |
466 | by the boot-loader before use. | |
467 | ||
468 | The uncompressor code port configuration is now handled | |
469 | by CONFIG_S3C_LOWLEVEL_UART_PORT. | |
e76f4750 | 470 | |
6111bf7c RH |
471 | config DEBUG_SOCFPGA_UART |
472 | depends on ARCH_SOCFPGA | |
473 | bool "Use SOCFPGA UART for low-level debug" | |
474 | help | |
475 | Say Y here if you want kernel low-level debugging support | |
476 | on SOCFPGA based platforms. | |
477 | ||
aa25115a SR |
478 | config DEBUG_SUNXI_UART0 |
479 | bool "Kernel low-level debugging messages via sunXi UART0" | |
480 | depends on ARCH_SUNXI | |
481 | help | |
482 | Say Y here if you want kernel low-level debugging support | |
483 | on Allwinner A1X based platforms on the UART0. | |
484 | ||
cb84fa18 MR |
485 | config DEBUG_SUNXI_UART1 |
486 | bool "Kernel low-level debugging messages via sunXi UART1" | |
487 | depends on ARCH_SUNXI | |
488 | help | |
489 | Say Y here if you want kernel low-level debugging support | |
490 | on Allwinner A1X based platforms on the UART1. | |
491 | ||
46067803 SW |
492 | config DEBUG_TEGRA_UART |
493 | depends on ARCH_TEGRA | |
494 | bool "Use Tegra UART for low-level debug" | |
495 | help | |
496 | Say Y here if you want kernel low-level debugging support | |
497 | on Tegra based platforms. | |
498 | ||
7f46a107 BS |
499 | config DEBUG_SIRFPRIMA2_UART1 |
500 | bool "Kernel low-level debugging messages via SiRFprimaII UART1" | |
501 | depends on ARCH_PRIMA2 | |
502 | help | |
503 | Say Y here if you want the debug print routines to direct | |
504 | their output to the uart1 port on SiRFprimaII devices. | |
505 | ||
506 | config DEBUG_SIRFMARCO_UART1 | |
507 | bool "Kernel low-level debugging messages via SiRFmarco UART1" | |
508 | depends on ARCH_MARCO | |
509 | help | |
510 | Say Y here if you want the debug print routines to direct | |
511 | their output to the uart1 port on SiRFmarco devices. | |
512 | ||
dd324da7 LW |
513 | config DEBUG_U300_UART |
514 | bool "Kernel low-level debugging messages via U300 UART0" | |
515 | depends on ARCH_U300 | |
516 | help | |
517 | Say Y here if you want the debug print routines to direct | |
518 | their output to the uart port on U300 devices. | |
519 | ||
f87b95dd LW |
520 | config DEBUG_UX500_UART |
521 | depends on ARCH_U8500 | |
522 | bool "Use Ux500 UART for low-level debug" | |
523 | help | |
524 | Say Y here if you want kernel low-level debugging support | |
525 | on Ux500 based platforms. | |
526 | ||
1b820eaf PM |
527 | config DEBUG_VEXPRESS_UART0_DETECT |
528 | bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" | |
529 | depends on ARCH_VEXPRESS && CPU_CP15_MMU | |
530 | help | |
531 | This option enables a simple heuristic which tries to determine | |
532 | the motherboard's memory map variant (original or RS1) and then | |
533 | choose the relevant UART0 base address. | |
534 | ||
535 | Note that this will only work with standard A-class core tiles, | |
536 | and may fail with non-standard SMM or custom software models. | |
537 | ||
538 | config DEBUG_VEXPRESS_UART0_CA9 | |
539 | bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" | |
540 | depends on ARCH_VEXPRESS | |
541 | help | |
542 | This option selects UART0 at 0x10009000. Except for custom models, | |
543 | this applies only to the V2P-CA9 tile. | |
544 | ||
545 | config DEBUG_VEXPRESS_UART0_RS1 | |
546 | bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" | |
547 | depends on ARCH_VEXPRESS | |
548 | help | |
549 | This option selects UART0 at 0x1c090000. This applies to most | |
550 | of the tiles using the RS1 memory map, including all new A-class | |
551 | core tiles, FPGA-based SMMs and software models. | |
552 | ||
ed18bdc8 JA |
553 | config DEBUG_VEXPRESS_UART0_CRX |
554 | bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" | |
555 | depends on ARCH_VEXPRESS && !MMU | |
556 | help | |
557 | This option selects UART0 at 0xb0090000. This is appropriate for | |
558 | Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7 | |
559 | ||
b61a2722 TP |
560 | config DEBUG_VT8500_UART0 |
561 | bool "Use UART0 on VIA/Wondermedia SoCs" | |
562 | depends on ARCH_VT8500 | |
563 | help | |
564 | This option selects UART0 on VIA/Wondermedia System-on-a-chip | |
565 | devices, including VT8500, WM8505, WM8650 and WM8850. | |
566 | ||
5026aecf SK |
567 | config DEBUG_STI_UART |
568 | depends on ARCH_STI | |
569 | bool "Use StiH415/416 ASC for low-level debug" | |
570 | help | |
571 | Say Y here if you want kernel low-level debugging support | |
572 | on StiH415/416 based platforms like B2000, B2020. | |
573 | It support UART2 and SBC_UART1. | |
574 | ||
575 | If unsure, say N. | |
576 | ||
e76f4750 RK |
577 | config DEBUG_LL_UART_NONE |
578 | bool "No low-level debugging UART" | |
387798b3 | 579 | depends on !ARCH_MULTIPLATFORM |
a3d3ef9d | 580 | help |
e76f4750 RK |
581 | Say Y here if your platform doesn't provide a UART option |
582 | below. This relies on your platform choosing the right UART | |
583 | definition internally in order for low-level debugging to | |
584 | work. | |
a3d3ef9d | 585 | |
e76f4750 RK |
586 | config DEBUG_ICEDCC |
587 | bool "Kernel low-level debugging via EmbeddedICE DCC channel" | |
a3d3ef9d SB |
588 | help |
589 | Say Y here if you want the debug print routines to direct | |
e76f4750 RK |
590 | their output to the EmbeddedICE macrocell's DCC channel using |
591 | co-processor 14. This is known to work on the ARM9 style ICE | |
592 | channel and on the XScale with the PEEDI. | |
593 | ||
594 | Note that the system will appear to hang during boot if there | |
595 | is nothing connected to read from the DCC. | |
a3d3ef9d | 596 | |
b0df8986 | 597 | config DEBUG_SEMIHOSTING |
62194bda | 598 | bool "Kernel low-level debug output via semihosting I/O" |
650e3f0d | 599 | help |
b0df8986 RK |
600 | Semihosting enables code running on an ARM target to use |
601 | the I/O facilities on a host debugger/emulator through a | |
62194bda | 602 | simple SVC call. The host debugger or emulator must have |
b0df8986 RK |
603 | semihosting enabled for the special svc call to be trapped |
604 | otherwise the kernel will crash. | |
650e3f0d | 605 | |
62194bda | 606 | This is known to work with OpenOCD, as well as |
b0df8986 RK |
607 | ARM's Fast Models, or any other controlling environment |
608 | that implements semihosting. | |
a3d3ef9d | 609 | |
b0df8986 RK |
610 | For more details about semihosting, please see |
611 | chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. | |
a3d3ef9d | 612 | |
17916b28 WD |
613 | endchoice |
614 | ||
a2e40710 AB |
615 | config DEBUG_EXYNOS_UART |
616 | bool | |
617 | ||
f8c95fe6 SG |
618 | config DEBUG_IMX_UART_PORT |
619 | int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \ | |
620 | DEBUG_IMX25_UART || \ | |
621 | DEBUG_IMX21_IMX27_UART || \ | |
622 | DEBUG_IMX31_UART || \ | |
623 | DEBUG_IMX35_UART || \ | |
624 | DEBUG_IMX51_UART || \ | |
0c52db7e | 625 | DEBUG_IMX53_UART || \ |
34e8a16b SG |
626 | DEBUG_IMX6Q_UART || \ |
627 | DEBUG_IMX6SL_UART | |
49c9e60e | 628 | default 1 |
287939a3 | 629 | depends on ARCH_MXC |
49c9e60e SG |
630 | help |
631 | Choose UART port on which kernel low-level debug messages | |
632 | should be output. | |
633 | ||
808b7e07 TL |
634 | choice |
635 | prompt "Low-level debug console UART" | |
636 | depends on DEBUG_OMAP2PLUS_UART | |
637 | ||
638 | config DEBUG_OMAP2UART1 | |
639 | bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" | |
640 | help | |
641 | This covers at least h4, 2430sdp, 3430sdp, 3630sdp, | |
642 | omap3 torpedo and 3530 lv som. | |
643 | ||
644 | config DEBUG_OMAP2UART2 | |
645 | bool "OMAP2/3/4 UART2" | |
646 | ||
647 | config DEBUG_OMAP2UART3 | |
648 | bool "OMAP2 UART3 (n8x0)" | |
649 | ||
650 | config DEBUG_OMAP3UART3 | |
651 | bool "OMAP3 UART3 (most omap3 boards)" | |
652 | help | |
653 | This covers at least cm_t3x, beagle, crane, devkit8000, | |
654 | igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, | |
655 | and 3517evm. | |
656 | ||
657 | config DEBUG_OMAP4UART3 | |
658 | bool "OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" | |
659 | ||
660 | config DEBUG_OMAP3UART4 | |
661 | bool "OMAP36XX UART4" | |
662 | ||
663 | config DEBUG_OMAP4UART4 | |
664 | bool "OMAP4/5 UART4" | |
665 | ||
666 | config DEBUG_TI81XXUART1 | |
667 | bool "TI81XX UART1 (ti8148evm)" | |
668 | ||
669 | config DEBUG_TI81XXUART2 | |
670 | bool "TI81XX UART2" | |
671 | ||
672 | config DEBUG_TI81XXUART3 | |
673 | bool "TI81XX UART3 (ti8168evm)" | |
674 | ||
675 | config DEBUG_AM33XXUART1 | |
676 | bool "AM33XX UART1" | |
677 | ||
678 | config DEBUG_ZOOM_UART | |
679 | bool "Zoom2/3 UART" | |
680 | endchoice | |
681 | ||
38bd6892 HS |
682 | choice |
683 | prompt "Low-level debug console UART" | |
684 | depends on DEBUG_ROCKCHIP_UART | |
685 | ||
686 | config DEBUG_RK29_UART0 | |
687 | bool "RK29 UART0" | |
688 | ||
689 | config DEBUG_RK29_UART1 | |
690 | bool "RK29 UART1" | |
691 | ||
692 | config DEBUG_RK29_UART2 | |
693 | bool "RK29 UART2" | |
694 | ||
695 | config DEBUG_RK3X_UART0 | |
696 | bool "RK3X UART0" | |
697 | ||
698 | config DEBUG_RK3X_UART1 | |
699 | bool "RK3X UART1" | |
700 | ||
701 | config DEBUG_RK3X_UART2 | |
702 | bool "RK3X UART2" | |
703 | ||
704 | config DEBUG_RK3X_UART3 | |
705 | bool "RK3X UART3" | |
706 | endchoice | |
707 | ||
46067803 SW |
708 | choice |
709 | prompt "Low-level debug console UART" | |
710 | depends on DEBUG_LL && DEBUG_TEGRA_UART | |
711 | ||
712 | config TEGRA_DEBUG_UART_AUTO_ODMDATA | |
713 | bool "Via ODMDATA" | |
714 | help | |
715 | Automatically determines which UART to use for low-level debug based | |
716 | on the ODMDATA value. This value is part of the BCT, and is written | |
717 | to the boot memory device using nvflash, or other flashing tool. | |
718 | When bits 19:18 are 3, then bits 17:15 indicate which UART to use; | |
719 | 0/1/2/3/4 are UART A/B/C/D/E. | |
720 | ||
721 | config TEGRA_DEBUG_UARTA | |
722 | bool "UART A" | |
723 | ||
724 | config TEGRA_DEBUG_UARTB | |
725 | bool "UART B" | |
726 | ||
727 | config TEGRA_DEBUG_UARTC | |
728 | bool "UART C" | |
729 | ||
730 | config TEGRA_DEBUG_UARTD | |
731 | bool "UART D" | |
732 | ||
733 | config TEGRA_DEBUG_UARTE | |
734 | bool "UART E" | |
735 | ||
736 | endchoice | |
737 | ||
5026aecf SK |
738 | choice |
739 | prompt "Low-level debug console UART" | |
740 | depends on DEBUG_LL && DEBUG_STI_UART | |
741 | ||
742 | config STIH41X_DEBUG_ASC2 | |
743 | bool "ASC2 UART" | |
744 | help | |
745 | Say Y here if you want kernel low-level debugging support | |
746 | on STiH415/416 based platforms like b2000, which has | |
747 | default UART wired up to ASC2. | |
748 | ||
749 | If unsure, say N. | |
750 | ||
751 | config STIH41X_DEBUG_SBC_ASC1 | |
752 | bool "SBC ASC1 UART" | |
753 | help | |
754 | Say Y here if you want kernel low-level debugging support | |
755 | on STiH415/416 based platforms like b2020. which has | |
756 | default UART wired up to SBC ASC1. | |
757 | ||
758 | If unsure, say N. | |
759 | ||
760 | endchoice | |
761 | ||
91a9fec0 RH |
762 | config DEBUG_LL_INCLUDE |
763 | string | |
f1ac922d | 764 | default "debug/bcm2835.S" if DEBUG_BCM2835 |
29c9b7be | 765 | default "debug/cns3xxx.S" if DEBUG_CNS3XXX |
a2e40710 | 766 | default "debug/exynos.S" if DEBUG_EXYNOS_UART |
150a8dcf | 767 | default "debug/highbank.S" if DEBUG_HIGHBANK_UART |
91a9fec0 | 768 | default "debug/icedcc.S" if DEBUG_ICEDCC |
6dde5ac5 SG |
769 | default "debug/imx.S" if DEBUG_IMX1_UART || \ |
770 | DEBUG_IMX25_UART || \ | |
771 | DEBUG_IMX21_IMX27_UART || \ | |
4ad625d4 SG |
772 | DEBUG_IMX31_UART || \ |
773 | DEBUG_IMX35_UART || \ | |
6dde5ac5 | 774 | DEBUG_IMX51_UART || \ |
7356420c | 775 | DEBUG_IMX53_UART ||\ |
34e8a16b SG |
776 | DEBUG_IMX6Q_UART || \ |
777 | DEBUG_IMX6SL_UART | |
828989ad SS |
778 | default "debug/keystone.S" if DEBUG_KEYSTONE_UART0 || \ |
779 | DEBUG_KEYSTONE_UART1 | |
c2804cd6 TP |
780 | default "debug/mvebu.S" if DEBUG_MVEBU_UART || \ |
781 | DEBUG_MVEBU_UART_ALTERNATE | |
e91411b4 | 782 | default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART |
266c3479 | 783 | default "debug/nomadik.S" if DEBUG_NOMADIK_UART |
42daabf6 LT |
784 | default "debug/nspire.S" if DEBUG_NSPIRE_CX_UART || \ |
785 | DEBUG_NSPIRE_CLASSIC_UART | |
808b7e07 | 786 | default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART |
59bba2a9 | 787 | default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART |
0a43cd3b HZ |
788 | default "debug/pxa.S" if DEBUG_PXA_UART1 || DEBUG_MMP_UART2 || \ |
789 | DEBUG_MMP_UART3 | |
38bd6892 | 790 | default "debug/rockchip.S" if DEBUG_ROCKCHIP_UART |
67bdb287 | 791 | default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1 |
6111bf7c | 792 | default "debug/socfpga.S" if DEBUG_SOCFPGA_UART |
5026aecf | 793 | default "debug/sti.S" if DEBUG_STI_UART |
aa25115a | 794 | default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1 |
150a8dcf | 795 | default "debug/tegra.S" if DEBUG_TEGRA_UART |
dd324da7 | 796 | default "debug/u300.S" if DEBUG_U300_UART |
150a8dcf | 797 | default "debug/ux500.S" if DEBUG_UX500_UART |
fa04e4db | 798 | default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \ |
ed18bdc8 JA |
799 | DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1 || \ |
800 | DEBUG_VEXPRESS_UART0_CRX | |
b61a2722 | 801 | default "debug/vt8500.S" if DEBUG_VT8500_UART0 |
385f02b1 | 802 | default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 |
91a9fec0 RH |
803 | default "mach/debug-macro.S" |
804 | ||
3b4af9bc SG |
805 | config DEBUG_UNCOMPRESS |
806 | bool | |
807 | default y if ARCH_MULTIPLATFORM && DEBUG_LL && \ | |
808 | !DEBUG_OMAP2PLUS_UART && \ | |
809 | !DEBUG_TEGRA_UART | |
810 | ||
615967b0 SG |
811 | config UNCOMPRESS_INCLUDE |
812 | string | |
813 | default "debug/uncompress.h" if ARCH_MULTIPLATFORM | |
814 | default "mach/uncompress.h" | |
815 | ||
93fd03a8 CM |
816 | config EARLY_PRINTK |
817 | bool "Early printk" | |
818 | depends on DEBUG_LL | |
819 | help | |
820 | Say Y here if you want to have an early console using the | |
821 | kernel low-level debugging functions. Add earlyprintk to your | |
822 | kernel parameters to enable this console. | |
823 | ||
c5d6c770 AS |
824 | config OC_ETM |
825 | bool "On-chip ETM and ETB" | |
53eebb0d | 826 | depends on ARM_AMBA |
c5d6c770 AS |
827 | help |
828 | Enables the on-chip embedded trace macrocell and embedded trace | |
829 | buffer driver that will allow you to collect traces of the | |
830 | kernel code. | |
831 | ||
4189bc71 JM |
832 | config ARM_KPROBES_TEST |
833 | tristate "Kprobes test module" | |
834 | depends on KPROBES && MODULES | |
835 | help | |
836 | Perform tests of kprobes API and instruction set simulation. | |
837 | ||
575320d6 WD |
838 | config PID_IN_CONTEXTIDR |
839 | bool "Write the current PID to the CONTEXTIDR register" | |
840 | depends on CPU_COPY_V6 | |
841 | help | |
842 | Enabling this option causes the kernel to write the current PID to | |
843 | the PROCID field of the CONTEXTIDR register, at the expense of some | |
844 | additional instructions during context switch. Say Y here only if you | |
845 | are planning to use hardware trace tools with this kernel. | |
846 | ||
1da177e4 | 847 | endmenu |