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1menu "Kernel hacking"
2
3source "lib/Kconfig.debug"
4
5config STRICT_DEVMEM
6 bool "Filter access to /dev/mem"
7 depends on MMU
8 ---help---
9 If this option is disabled, you allow userspace (root) access to all
10 of memory, including kernel and userspace memory. Accidental
11 access to this is obviously disastrous, but specific access can
12 be used by people debugging the kernel.
13
14 If this option is switched on, the /dev/mem file only allows
15 userspace access to memory mapped peripherals.
16
17 If in doubt, say Y.
18
19# RMK wants arm kernels compiled with frame pointers or stack unwinding.
20# If you know what you are doing and are willing to live without stack
21# traces, you can get a slightly smaller kernel by setting this option to
22# n, but then RMK will have to kill you ;).
23config FRAME_POINTER
24 bool
25 depends on !THUMB2_KERNEL
26 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
27 help
28 If you say N here, the resulting kernel will be slightly smaller and
29 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
30 when a problem occurs with the kernel, the information that is
31 reported is severely limited.
32
33config ARM_UNWIND
34 bool "Enable stack unwinding support (EXPERIMENTAL)"
35 depends on AEABI && EXPERIMENTAL
36 default y
37 help
38 This option enables stack unwinding support in the kernel
39 using the information automatically generated by the
40 compiler. The resulting kernel image is slightly bigger but
41 the performance is not affected. Currently, this feature
42 only works with EABI compilers. If unsure say Y.
43
44config OLD_MCOUNT
45 bool
46 depends on FUNCTION_TRACER && FRAME_POINTER
47 default y
48
49config DEBUG_USER
50 bool "Verbose user fault messages"
51 help
52 When a user program crashes due to an exception, the kernel can
53 print a brief message explaining what the problem was. This is
54 sometimes helpful for debugging but serves no purpose on a
55 production system. Most people should say N here.
56
57 In addition, you need to pass user_debug=N on the kernel command
58 line to enable this feature. N consists of the sum of:
59
60 1 - undefined instruction events
61 2 - system calls
62 4 - invalid data aborts
63 8 - SIGSEGV faults
64 16 - SIGBUS faults
65
66# These options are only for real kernel hackers who want to get their hands dirty.
67config DEBUG_LL
68 bool "Kernel low-level debugging functions"
69 depends on DEBUG_KERNEL
70 help
71 Say Y here to include definitions of printascii, printch, printhex
72 in the kernel. This is helpful if you are debugging code that
73 executes before the console is initialized.
74
75config EARLY_PRINTK
76 bool "Early printk"
77 depends on DEBUG_LL
78 help
79 Say Y here if you want to have an early console using the
80 kernel low-level debugging functions. Add earlyprintk to your
81 kernel parameters to enable this console.
82
83config DEBUG_ICEDCC
84 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
85 depends on DEBUG_LL
86 help
87 Say Y here if you want the debug print routines to direct their
88 output to the EmbeddedICE macrocell's DCC channel using
89 co-processor 14. This is known to work on the ARM9 style ICE
90 channel and on the XScale with the PEEDI.
91
92 It does include a timeout to ensure that the system does not
93 totally freeze when there is nothing connected to read.
94
95config OC_ETM
96 bool "On-chip ETM and ETB"
97 select ARM_AMBA
98 help
99 Enables the on-chip embedded trace macrocell and embedded trace
100 buffer driver that will allow you to collect traces of the
101 kernel code.
102
103config DEBUG_DC21285_PORT
104 bool "Kernel low-level debugging messages via footbridge serial port"
105 depends on DEBUG_LL && FOOTBRIDGE
106 help
107 Say Y here if you want the debug print routines to direct their
108 output to the serial port in the DC21285 (Footbridge). Saying N
109 will cause the debug messages to appear on the first 16550
110 serial port.
111
112config DEBUG_CLPS711X_UART2
113 bool "Kernel low-level debugging messages via UART2"
114 depends on DEBUG_LL && ARCH_CLPS711X
115 help
116 Say Y here if you want the debug print routines to direct their
117 output to the second serial port on these devices. Saying N will
118 cause the debug messages to appear on the first serial port.
119
120config DEBUG_S3C_UART
121 depends on PLAT_SAMSUNG
122 int "S3C UART to use for low-level debug"
123 default "0"
124 help
125 Choice for UART for kernel low-level using S3C UARTS,
126 should be between zero and two. The port must have been
127 initialised by the boot-loader before use.
128
129 The uncompressor code port configuration is now handled
130 by CONFIG_S3C_LOWLEVEL_UART_PORT.
131
132endmenu
1menu "Kernel hacking"
2
3source "lib/Kconfig.debug"
4
5config ARM_PTDUMP
6 bool "Export kernel pagetable layout to userspace via debugfs"
7 depends on DEBUG_KERNEL
8 depends on MMU
9 select DEBUG_FS
10 ---help---
11 Say Y here if you want to show the kernel pagetable layout in a
12 debugfs file. This information is only useful for kernel developers
13 who are working in architecture specific areas of the kernel.
14 It is probably not a good idea to enable this feature in a production
15 kernel.
16 If in doubt, say "N"
17
18# RMK wants arm kernels compiled with frame pointers or stack unwinding.
19# If you know what you are doing and are willing to live without stack
20# traces, you can get a slightly smaller kernel by setting this option to
21# n, but then RMK will have to kill you ;).
22config FRAME_POINTER
23 bool
24 depends on !THUMB2_KERNEL
25 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
26 help
27 If you say N here, the resulting kernel will be slightly smaller and
28 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
29 when a problem occurs with the kernel, the information that is
30 reported is severely limited.
31
32config ARM_UNWIND
33 bool "Enable stack unwinding support (EXPERIMENTAL)"
34 depends on AEABI
35 default y
36 help
37 This option enables stack unwinding support in the kernel
38 using the information automatically generated by the
39 compiler. The resulting kernel image is slightly bigger but
40 the performance is not affected. Currently, this feature
41 only works with EABI compilers. If unsure say Y.
42
43config OLD_MCOUNT
44 bool
45 depends on FUNCTION_TRACER && FRAME_POINTER
46 default y
47
48config DEBUG_USER
49 bool "Verbose user fault messages"
50 help
51 When a user program crashes due to an exception, the kernel can
52 print a brief message explaining what the problem was. This is
53 sometimes helpful for debugging but serves no purpose on a
54 production system. Most people should say N here.
55
56 In addition, you need to pass user_debug=N on the kernel command
57 line to enable this feature. N consists of the sum of:
58
59 1 - undefined instruction events
60 2 - system calls
61 4 - invalid data aborts
62 8 - SIGSEGV faults
63 16 - SIGBUS faults
64
65# These options are only for real kernel hackers who want to get their hands dirty.
66config DEBUG_LL
67 bool "Kernel low-level debugging functions (read help!)"
68 depends on DEBUG_KERNEL
69 help
70 Say Y here to include definitions of printascii, printch, printhex
71 in the kernel. This is helpful if you are debugging code that
72 executes before the console is initialized.
73
74 Note that selecting this option will limit the kernel to a single
75 UART definition, as specified below. Attempting to boot the kernel
76 image on a different platform *will not work*, so this option should
77 not be enabled for kernels that are intended to be portable.
78
79choice
80 prompt "Kernel low-level debugging port"
81 depends on DEBUG_LL
82
83 config DEBUG_ALPINE_UART0
84 bool "Kernel low-level debugging messages via Alpine UART0"
85 depends on ARCH_ALPINE
86 select DEBUG_UART_8250
87 help
88 Say Y here if you want kernel low-level debugging support
89 on Alpine based platforms.
90
91 config DEBUG_ASM9260_UART
92 bool "Kernel low-level debugging via asm9260 UART"
93 depends on MACH_ASM9260
94 help
95 Say Y here if you want the debug print routines to direct
96 their output to an UART or USART port on asm9260 based
97 machines.
98
99 DEBUG_UART_PHYS | DEBUG_UART_VIRT
100
101 0x80000000 | 0xf0000000 | UART0
102 0x80004000 | 0xf0004000 | UART1
103 0x80008000 | 0xf0008000 | UART2
104 0x8000c000 | 0xf000c000 | UART3
105 0x80010000 | 0xf0010000 | UART4
106 0x80014000 | 0xf0014000 | UART5
107 0x80018000 | 0xf0018000 | UART6
108 0x8001c000 | 0xf001c000 | UART7
109 0x80020000 | 0xf0020000 | UART8
110 0x80024000 | 0xf0024000 | UART9
111
112 config DEBUG_AT91_RM9200_DBGU
113 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9 DBGU"
114 select DEBUG_AT91_UART
115 depends on SOC_AT91RM9200 || SOC_AT91SAM9
116 help
117 Say Y here if you want kernel low-level debugging support
118 on the DBGU port of:
119 at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
120 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5
121
122 config DEBUG_AT91_SAM9263_DBGU
123 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
124 select DEBUG_AT91_UART
125 depends on SOC_AT91SAM9 || SOC_SAMA5D3
126 help
127 Say Y here if you want kernel low-level debugging support
128 on the DBGU port of:
129 at91sam9263, at91sam9g45, at91sam9m10,
130 sama5d3
131
132 config DEBUG_AT91_SAMA5D2_UART1
133 bool "Kernel low-level debugging on SAMA5D2 UART1"
134 select DEBUG_AT91_UART
135 depends on SOC_SAMA5D2
136 help
137 Say Y here if you want kernel low-level debugging support
138 on the UART1 port of sama5d2.
139
140 config DEBUG_AT91_SAMA5D4_USART3
141 bool "Kernel low-level debugging on SAMA5D4 USART3"
142 select DEBUG_AT91_UART
143 depends on SOC_SAMA5D4
144 help
145 Say Y here if you want kernel low-level debugging support
146 on the USART3 port of sama5d4.
147
148 config DEBUG_BCM2835
149 bool "Kernel low-level debugging on BCM2835 PL011 UART"
150 depends on ARCH_BCM2835 && ARCH_MULTI_V6
151 select DEBUG_UART_PL01X
152
153 config DEBUG_BCM2836
154 bool "Kernel low-level debugging on BCM2836 PL011 UART"
155 depends on ARCH_BCM2835 && ARCH_MULTI_V7
156 select DEBUG_UART_PL01X
157
158 config DEBUG_BCM_5301X
159 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
160 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
161 select DEBUG_UART_8250
162
163 config DEBUG_BCM_KONA_UART
164 bool "Kernel low-level debugging messages via BCM KONA UART"
165 depends on ARCH_BCM_MOBILE
166 select DEBUG_UART_8250
167 help
168 Say Y here if you want kernel low-level debugging support
169 on Broadcom SoC platforms.
170 This low level debug works for Broadcom
171 mobile SoCs in the Kona family of chips (e.g. bcm28155,
172 bcm11351, etc...)
173
174 config DEBUG_BCM63XX_UART
175 bool "Kernel low-level debugging on BCM63XX UART"
176 depends on ARCH_BCM_63XX
177
178 config DEBUG_BERLIN_UART
179 bool "Marvell Berlin SoC Debug UART"
180 depends on ARCH_BERLIN
181 select DEBUG_UART_8250
182 help
183 Say Y here if you want kernel low-level debugging support
184 on Marvell Berlin SoC based platforms.
185
186 config DEBUG_BRCMSTB_UART
187 bool "Use BRCMSTB UART for low-level debug"
188 depends on ARCH_BRCMSTB
189 help
190 Say Y here if you want the debug print routines to direct
191 their output to the first serial port on these devices. The
192 UART physical and virtual address is automatically provided
193 based on the chip identification register value.
194
195 If you have a Broadcom STB chip and would like early print
196 messages to appear over the UART, select this option.
197
198 config DEBUG_CLPS711X_UART1
199 bool "Kernel low-level debugging messages via UART1"
200 depends on ARCH_CLPS711X
201 help
202 Say Y here if you want the debug print routines to direct
203 their output to the first serial port on these devices.
204
205 config DEBUG_CLPS711X_UART2
206 bool "Kernel low-level debugging messages via UART2"
207 depends on ARCH_CLPS711X
208 help
209 Say Y here if you want the debug print routines to direct
210 their output to the second serial port on these devices.
211
212 config DEBUG_CNS3XXX
213 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
214 depends on ARCH_CNS3XXX
215 select DEBUG_UART_8250
216 help
217 Say Y here if you want the debug print routines to direct
218 their output to the CNS3xxx UART0.
219
220 config DEBUG_DAVINCI_DA8XX_UART1
221 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
222 depends on ARCH_DAVINCI_DA8XX
223 select DEBUG_UART_8250
224 help
225 Say Y here if you want the debug print routines to direct
226 their output to UART1 serial port on DaVinci DA8XX devices.
227
228 config DEBUG_DAVINCI_DA8XX_UART2
229 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
230 depends on ARCH_DAVINCI_DA8XX
231 select DEBUG_UART_8250
232 help
233 Say Y here if you want the debug print routines to direct
234 their output to UART2 serial port on DaVinci DA8XX devices.
235
236 config DEBUG_DAVINCI_DMx_UART0
237 bool "Kernel low-level debugging on DaVinci DMx using UART0"
238 depends on ARCH_DAVINCI_DMx
239 select DEBUG_UART_8250
240 help
241 Say Y here if you want the debug print routines to direct
242 their output to UART0 serial port on DaVinci DMx devices.
243
244 config DEBUG_DC21285_PORT
245 bool "Kernel low-level debugging messages via footbridge serial port"
246 depends on FOOTBRIDGE
247 help
248 Say Y here if you want the debug print routines to direct
249 their output to the serial port in the DC21285 (Footbridge).
250
251 config DEBUG_DIGICOLOR_UA0
252 bool "Kernel low-level debugging messages via Digicolor UA0"
253 depends on ARCH_DIGICOLOR
254 help
255 Say Y here if you want the debug print routines to direct
256 their output to the UA0 serial port in the CX92755.
257
258 config DEBUG_EP93XX
259 bool "Kernel low-level debugging messages via ep93xx UART"
260 depends on ARCH_EP93XX
261 select DEBUG_UART_PL01X
262 help
263 Say Y here if you want kernel low-level debugging support
264 on Cirrus Logic EP93xx based platforms.
265
266 config DEBUG_FOOTBRIDGE_COM1
267 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
268 depends on FOOTBRIDGE
269 select DEBUG_UART_8250
270 help
271 Say Y here if you want the debug print routines to direct
272 their output to the 8250 at PCI COM1.
273
274 config DEBUG_GEMINI
275 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
276 depends on ARCH_GEMINI
277 select DEBUG_UART_8250
278 help
279 Say Y here if you want kernel low-level debugging support
280 on Cortina Gemini based platforms.
281
282 config DEBUG_HI3620_UART
283 bool "Hisilicon HI3620 Debug UART"
284 depends on ARCH_HI3xxx
285 select DEBUG_UART_PL01X
286 help
287 Say Y here if you want kernel low-level debugging support
288 on HI3620 UART.
289
290 config DEBUG_HIGHBANK_UART
291 bool "Kernel low-level debugging messages via Highbank UART"
292 depends on ARCH_HIGHBANK
293 select DEBUG_UART_PL01X
294 help
295 Say Y here if you want the debug print routines to direct
296 their output to the UART on Highbank based devices.
297
298 config DEBUG_HIP01_UART
299 bool "Hisilicon Hip01 Debug UART"
300 depends on ARCH_HIP01
301 select DEBUG_UART_8250
302 help
303 Say Y here if you want kernel low-level debugging support
304 on HIP01 UART.
305
306 config DEBUG_HIP04_UART
307 bool "Hisilicon HiP04 Debug UART"
308 depends on ARCH_HIP04
309 select DEBUG_UART_8250
310 help
311 Say Y here if you want kernel low-level debugging support
312 on HIP04 UART.
313
314 config DEBUG_HIX5HD2_UART
315 bool "Hisilicon Hix5hd2 Debug UART"
316 depends on ARCH_HIX5HD2
317 select DEBUG_UART_PL01X
318 help
319 Say Y here if you want kernel low-level debugging support
320 on Hix5hd2 UART.
321
322 config DEBUG_IMX1_UART
323 bool "i.MX1 Debug UART"
324 depends on SOC_IMX1
325 help
326 Say Y here if you want kernel low-level debugging support
327 on i.MX1.
328
329 config DEBUG_IMX23_UART
330 bool "i.MX23 Debug UART"
331 depends on SOC_IMX23
332 select DEBUG_UART_PL01X
333 help
334 Say Y here if you want kernel low-level debugging support
335 on i.MX23.
336
337 config DEBUG_IMX25_UART
338 bool "i.MX25 Debug UART"
339 depends on SOC_IMX25
340 help
341 Say Y here if you want kernel low-level debugging support
342 on i.MX25.
343
344 config DEBUG_IMX21_IMX27_UART
345 bool "i.MX21 and i.MX27 Debug UART"
346 depends on SOC_IMX21 || SOC_IMX27
347 help
348 Say Y here if you want kernel low-level debugging support
349 on i.MX21 or i.MX27.
350
351 config DEBUG_IMX28_UART
352 bool "i.MX28 Debug UART"
353 depends on SOC_IMX28
354 select DEBUG_UART_PL01X
355 help
356 Say Y here if you want kernel low-level debugging support
357 on i.MX28.
358
359 config DEBUG_IMX31_UART
360 bool "i.MX31 Debug UART"
361 depends on SOC_IMX31
362 help
363 Say Y here if you want kernel low-level debugging support
364 on i.MX31.
365
366 config DEBUG_IMX35_UART
367 bool "i.MX35 Debug UART"
368 depends on SOC_IMX35
369 help
370 Say Y here if you want kernel low-level debugging support
371 on i.MX35.
372
373 config DEBUG_IMX50_UART
374 bool "i.MX50 Debug UART"
375 depends on SOC_IMX50
376 help
377 Say Y here if you want kernel low-level debugging support
378 on i.MX50.
379
380 config DEBUG_IMX51_UART
381 bool "i.MX51 Debug UART"
382 depends on SOC_IMX51
383 help
384 Say Y here if you want kernel low-level debugging support
385 on i.MX51.
386
387 config DEBUG_IMX53_UART
388 bool "i.MX53 Debug UART"
389 depends on SOC_IMX53
390 help
391 Say Y here if you want kernel low-level debugging support
392 on i.MX53.
393
394 config DEBUG_IMX6Q_UART
395 bool "i.MX6Q/DL Debug UART"
396 depends on SOC_IMX6Q
397 help
398 Say Y here if you want kernel low-level debugging support
399 on i.MX6Q/DL.
400
401 config DEBUG_IMX6SL_UART
402 bool "i.MX6SL Debug UART"
403 depends on SOC_IMX6SL
404 help
405 Say Y here if you want kernel low-level debugging support
406 on i.MX6SL.
407
408 config DEBUG_IMX6SX_UART
409 bool "i.MX6SX Debug UART"
410 depends on SOC_IMX6SX
411 help
412 Say Y here if you want kernel low-level debugging support
413 on i.MX6SX.
414
415 config DEBUG_IMX6UL_UART
416 bool "i.MX6UL Debug UART"
417 depends on SOC_IMX6UL
418 help
419 Say Y here if you want kernel low-level debugging support
420 on i.MX6UL.
421
422 config DEBUG_IMX7D_UART
423 bool "i.MX7D Debug UART"
424 depends on SOC_IMX7D
425 help
426 Say Y here if you want kernel low-level debugging support
427 on i.MX7D.
428
429 config DEBUG_INTEGRATOR
430 bool "Kernel low-level debugging messages via ARM Integrator UART"
431 depends on ARCH_INTEGRATOR
432 select DEBUG_UART_PL01X
433 help
434 Say Y here if you want kernel low-level debugging support
435 on ARM Integrator platforms.
436
437 config DEBUG_KEYSTONE_UART0
438 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
439 depends on ARCH_KEYSTONE
440 select DEBUG_UART_8250
441 help
442 Say Y here if you want the debug print routines to direct
443 their output to UART0 serial port on KEYSTONE2 devices.
444
445 config DEBUG_KEYSTONE_UART1
446 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
447 depends on ARCH_KEYSTONE
448 select DEBUG_UART_8250
449 help
450 Say Y here if you want the debug print routines to direct
451 their output to UART1 serial port on KEYSTONE2 devices.
452
453 config DEBUG_KS8695_UART
454 bool "KS8695 Debug UART"
455 depends on ARCH_KS8695
456 help
457 Say Y here if you want kernel low-level debugging support
458 on KS8695.
459
460 config DEBUG_LPC18XX_UART0
461 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
462 depends on ARCH_LPC18XX
463 select DEBUG_UART_8250
464 help
465 Say Y here if you want kernel low-level debugging support
466 on NXP LPC18xx/43xx UART0.
467
468 config DEBUG_LPC32XX
469 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
470 depends on ARCH_LPC32XX
471 select DEBUG_UART_8250
472 help
473 Say Y here if you want kernel low-level debugging support
474 on NXP LPC32xx based platforms.
475
476 config DEBUG_MESON_UARTAO
477 bool "Kernel low-level debugging via Meson6 UARTAO"
478 depends on ARCH_MESON
479 help
480 Say Y here if you want kernel low-lever debugging support
481 on Amlogic Meson6 based platforms on the UARTAO.
482
483 config DEBUG_MMP_UART2
484 bool "Kernel low-level debugging message via MMP UART2"
485 depends on ARCH_MMP
486 select DEBUG_UART_8250
487 help
488 Say Y here if you want kernel low-level debugging support
489 on MMP UART2.
490
491 config DEBUG_MMP_UART3
492 bool "Kernel low-level debugging message via MMP UART3"
493 depends on ARCH_MMP
494 select DEBUG_UART_8250
495 help
496 Say Y here if you want kernel low-level debugging support
497 on MMP UART3.
498
499 config DEBUG_MVEBU_UART0
500 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
501 depends on ARCH_MVEBU
502 depends on ARCH_MVEBU && CPU_V7
503 select DEBUG_UART_8250
504 help
505 Say Y here if you want kernel low-level debugging support
506 on MVEBU based platforms on UART0.
507
508 This option should be used with the old bootloaders
509 that left the internal registers mapped at
510 0xd0000000. As of today, this is the case on
511 platforms such as the Globalscale Mirabox or the
512 Plathome OpenBlocks AX3, when using the original
513 bootloader.
514
515 This option will not work on older Marvell platforms
516 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
517 the "new bootloader" variant.
518
519 If the wrong DEBUG_MVEBU_UART* option is selected,
520 when u-boot hands over to the kernel, the system
521 silently crashes, with no serial output at all.
522
523 config DEBUG_MVEBU_UART0_ALTERNATE
524 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
525 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
526 select DEBUG_UART_8250
527 help
528 Say Y here if you want kernel low-level debugging support
529 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
530 Kirkwood, Dove, MV78xx0, Orion5x).
531
532
533 This option should be used with the new bootloaders
534 that remap the internal registers at 0xf1000000.
535
536 If the wrong DEBUG_MVEBU_UART* option is selected,
537 when u-boot hands over to the kernel, the system
538 silently crashes, with no serial output at all.
539
540 config DEBUG_MVEBU_UART1_ALTERNATE
541 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
542 depends on ARCH_MVEBU
543 select DEBUG_UART_8250
544 help
545 Say Y here if you want kernel low-level debugging support
546 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
547 Kirkwood, Dove, MV78xx0, Orion5x).
548
549 This option should be used with the new bootloaders
550 that remap the internal registers at 0xf1000000.
551 All of the older (pre Armada XP/370) platforms also use
552 this address, regardless of the boot loader version.
553
554 If the wrong DEBUG_MVEBU_UART* option is selected,
555 when u-boot hands over to the kernel, the system
556 silently crashes, with no serial output at all.
557
558 config DEBUG_MT6589_UART0
559 bool "Mediatek mt6589 UART0"
560 depends on ARCH_MEDIATEK
561 select DEBUG_UART_8250
562 help
563 Say Y here if you want kernel low-level debugging support
564 for Mediatek mt6589 based platforms on UART0.
565
566 config DEBUG_MT8127_UART0
567 bool "Mediatek mt8127/mt6592 UART0"
568 depends on ARCH_MEDIATEK
569 select DEBUG_UART_8250
570 help
571 Say Y here if you want kernel low-level debugging support
572 for Mediatek mt8127 based platforms on UART0.
573
574 config DEBUG_MT8135_UART3
575 bool "Mediatek mt8135 UART3"
576 depends on ARCH_MEDIATEK
577 select DEBUG_UART_8250
578 help
579 Say Y here if you want kernel low-level debugging support
580 for Mediatek mt8135 based platforms on UART3.
581
582 config DEBUG_NETX_UART
583 bool "Kernel low-level debugging messages via NetX UART"
584 depends on ARCH_NETX
585 help
586 Say Y here if you want kernel low-level debugging support
587 on Hilscher NetX based platforms.
588
589 config DEBUG_NOMADIK_UART
590 bool "Kernel low-level debugging messages via NOMADIK UART"
591 depends on ARCH_NOMADIK
592 select DEBUG_UART_PL01X
593 help
594 Say Y here if you want kernel low-level debugging support
595 on NOMADIK based platforms.
596
597 config DEBUG_NSPIRE_CLASSIC_UART
598 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
599 depends on ARCH_NSPIRE
600 select DEBUG_UART_8250
601 help
602 Say Y here if you want kernel low-level debugging support
603 on TI-NSPIRE classic models.
604
605 config DEBUG_NSPIRE_CX_UART
606 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
607 depends on ARCH_NSPIRE
608 select DEBUG_UART_PL01X
609 help
610 Say Y here if you want kernel low-level debugging support
611 on TI-NSPIRE CX models.
612
613 config DEBUG_OMAP1UART1
614 bool "Kernel low-level debugging via OMAP1 UART1"
615 depends on ARCH_OMAP1
616 select DEBUG_UART_8250
617 help
618 Say Y here if you want kernel low-level debugging support
619 on OMAP1 based platforms (except OMAP730) on the UART1.
620
621 config DEBUG_OMAP1UART2
622 bool "Kernel low-level debugging via OMAP1 UART2"
623 depends on ARCH_OMAP1
624 select DEBUG_UART_8250
625 help
626 Say Y here if you want kernel low-level debugging support
627 on OMAP1 based platforms (except OMAP730) on the UART2.
628
629 config DEBUG_OMAP1UART3
630 bool "Kernel low-level debugging via OMAP1 UART3"
631 depends on ARCH_OMAP1
632 select DEBUG_UART_8250
633 help
634 Say Y here if you want kernel low-level debugging support
635 on OMAP1 based platforms (except OMAP730) on the UART3.
636
637 config DEBUG_OMAP2UART1
638 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
639 depends on ARCH_OMAP2PLUS
640 select DEBUG_OMAP2PLUS_UART
641 help
642 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
643 omap3 torpedo and 3530 lv som.
644
645 config DEBUG_OMAP2UART2
646 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
647 depends on ARCH_OMAP2PLUS
648 select DEBUG_OMAP2PLUS_UART
649
650 config DEBUG_OMAP2UART3
651 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
652 depends on ARCH_OMAP2PLUS
653 select DEBUG_OMAP2PLUS_UART
654
655 config DEBUG_OMAP3UART3
656 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
657 depends on ARCH_OMAP2PLUS
658 select DEBUG_OMAP2PLUS_UART
659 help
660 This covers at least cm_t3x, beagle, crane, devkit8000,
661 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
662 and 3517evm.
663
664 config DEBUG_OMAP4UART3
665 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
666 depends on ARCH_OMAP2PLUS
667 select DEBUG_OMAP2PLUS_UART
668
669 config DEBUG_OMAP3UART4
670 bool "Kernel low-level debugging messages via OMAP36XX UART4"
671 depends on ARCH_OMAP2PLUS
672 select DEBUG_OMAP2PLUS_UART
673
674 config DEBUG_OMAP4UART4
675 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
676 depends on ARCH_OMAP2PLUS
677 select DEBUG_OMAP2PLUS_UART
678
679 config DEBUG_OMAP7XXUART1
680 bool "Kernel low-level debugging via OMAP730 UART1"
681 depends on ARCH_OMAP730
682 select DEBUG_UART_8250
683 help
684 Say Y here if you want kernel low-level debugging support
685 on OMAP730 based platforms on the UART1.
686
687 config DEBUG_OMAP7XXUART2
688 bool "Kernel low-level debugging via OMAP730 UART2"
689 depends on ARCH_OMAP730
690 select DEBUG_UART_8250
691 help
692 Say Y here if you want kernel low-level debugging support
693 on OMAP730 based platforms on the UART2.
694
695 config DEBUG_OMAP7XXUART3
696 bool "Kernel low-level debugging via OMAP730 UART3"
697 depends on ARCH_OMAP730
698 select DEBUG_UART_8250
699 help
700 Say Y here if you want kernel low-level debugging support
701 on OMAP730 based platforms on the UART3.
702
703 config DEBUG_TI81XXUART1
704 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
705 depends on ARCH_OMAP2PLUS
706 select DEBUG_OMAP2PLUS_UART
707
708 config DEBUG_TI81XXUART2
709 bool "Kernel low-level debugging messages via TI81XX UART2"
710 depends on ARCH_OMAP2PLUS
711 select DEBUG_OMAP2PLUS_UART
712
713 config DEBUG_TI81XXUART3
714 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
715 depends on ARCH_OMAP2PLUS
716 select DEBUG_OMAP2PLUS_UART
717
718 config DEBUG_AM33XXUART1
719 bool "Kernel low-level debugging messages via AM33XX UART1"
720 depends on ARCH_OMAP2PLUS
721 select DEBUG_OMAP2PLUS_UART
722
723 config DEBUG_ZOOM_UART
724 bool "Kernel low-level debugging messages via Zoom2/3 UART"
725 depends on ARCH_OMAP2PLUS
726 select DEBUG_OMAP2PLUS_UART
727
728 config DEBUG_PICOXCELL_UART
729 depends on ARCH_PICOXCELL
730 bool "Use PicoXcell UART for low-level debug"
731 select DEBUG_UART_8250
732 help
733 Say Y here if you want kernel low-level debugging support
734 on PicoXcell based platforms.
735
736 config DEBUG_PXA_UART1
737 depends on ARCH_PXA
738 bool "Use PXA UART1 for low-level debug"
739 select DEBUG_UART_8250
740 help
741 Say Y here if you want kernel low-level debugging support
742 on PXA UART1.
743
744 config DEBUG_QCOM_UARTDM
745 bool "Kernel low-level debugging messages via QCOM UARTDM"
746 depends on ARCH_QCOM
747 help
748 Say Y here if you want the debug print routines to direct
749 their output to the serial port on Qualcomm devices.
750
751 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
752 APQ8064 0x16640000 0xf0040000
753 APQ8084 0xf995e000 0xfa75e000
754 MSM8X60 0x19c40000 0xf0040000
755 MSM8960 0x16440000 0xf0040000
756 MSM8974 0xf991e000 0xfa71e000
757
758 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
759 options based on your needs.
760
761 config DEBUG_REALVIEW_STD_PORT
762 bool "RealView Default UART"
763 depends on ARCH_REALVIEW
764 select DEBUG_UART_PL01X
765 help
766 Say Y here if you want the debug print routines to direct
767 their output to the serial port on RealView EB, PB11MP, PBA8
768 and PBX platforms.
769
770 config DEBUG_REALVIEW_PB1176_PORT
771 bool "RealView PB1176 UART"
772 depends on MACH_REALVIEW_PB1176
773 select DEBUG_UART_PL01X
774 help
775 Say Y here if you want the debug print routines to direct
776 their output to the standard serial port on the RealView
777 PB1176 platform.
778
779 config DEBUG_RK29_UART0
780 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
781 depends on ARCH_ROCKCHIP
782 select DEBUG_UART_8250
783 help
784 Say Y here if you want kernel low-level debugging support
785 on Rockchip based platforms.
786
787 config DEBUG_RK29_UART1
788 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
789 depends on ARCH_ROCKCHIP
790 select DEBUG_UART_8250
791 help
792 Say Y here if you want kernel low-level debugging support
793 on Rockchip based platforms.
794
795 config DEBUG_RK29_UART2
796 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
797 depends on ARCH_ROCKCHIP
798 select DEBUG_UART_8250
799 help
800 Say Y here if you want kernel low-level debugging support
801 on Rockchip based platforms.
802
803 config DEBUG_RK3X_UART0
804 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
805 depends on ARCH_ROCKCHIP
806 select DEBUG_UART_8250
807 help
808 Say Y here if you want kernel low-level debugging support
809 on Rockchip based platforms.
810
811 config DEBUG_RK3X_UART1
812 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
813 depends on ARCH_ROCKCHIP
814 select DEBUG_UART_8250
815 help
816 Say Y here if you want kernel low-level debugging support
817 on Rockchip based platforms.
818
819 config DEBUG_RK3X_UART2
820 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
821 depends on ARCH_ROCKCHIP
822 select DEBUG_UART_8250
823 help
824 Say Y here if you want kernel low-level debugging support
825 on Rockchip based platforms.
826
827 config DEBUG_RK3X_UART3
828 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
829 depends on ARCH_ROCKCHIP
830 select DEBUG_UART_8250
831 help
832 Say Y here if you want kernel low-level debugging support
833 on Rockchip based platforms.
834
835 config DEBUG_RK32_UART2
836 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
837 depends on ARCH_ROCKCHIP
838 select DEBUG_UART_8250
839 help
840 Say Y here if you want kernel low-level debugging support
841 on Rockchip RK32xx based platforms.
842
843 config DEBUG_R7S72100_SCIF2
844 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
845 depends on ARCH_R7S72100
846 help
847 Say Y here if you want kernel low-level debugging support
848 via SCIF2 on Renesas RZ/A1H (R7S72100).
849
850 config DEBUG_RCAR_GEN1_SCIF0
851 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
852 depends on ARCH_R8A7778
853 help
854 Say Y here if you want kernel low-level debugging support
855 via SCIF0 on Renesas R-Car M1A (R8A7778).
856
857 config DEBUG_RCAR_GEN1_SCIF2
858 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
859 depends on ARCH_R8A7779
860 help
861 Say Y here if you want kernel low-level debugging support
862 via SCIF2 on Renesas R-Car H1 (R8A7779).
863
864 config DEBUG_RCAR_GEN2_SCIF0
865 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7792/R8A7793"
866 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
867 help
868 Say Y here if you want kernel low-level debugging support
869 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), V2H
870 (R8A7792), or M2-N (R8A7793).
871
872 config DEBUG_RCAR_GEN2_SCIF2
873 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
874 depends on ARCH_R8A7794
875 help
876 Say Y here if you want kernel low-level debugging support
877 via SCIF2 on Renesas R-Car E2 (R8A7794).
878
879 config DEBUG_RMOBILE_SCIFA0
880 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
881 depends on ARCH_R8A73A4
882 help
883 Say Y here if you want kernel low-level debugging support
884 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
885
886 config DEBUG_RMOBILE_SCIFA1
887 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
888 depends on ARCH_R8A7740
889 help
890 Say Y here if you want kernel low-level debugging support
891 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
892
893 config DEBUG_RMOBILE_SCIFA4
894 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
895 depends on ARCH_SH73A0
896 help
897 Say Y here if you want kernel low-level debugging support
898 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
899
900 config DEBUG_S3C_UART0
901 depends on PLAT_SAMSUNG
902 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
903 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
904 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
905 select DEBUG_S5PV210_UART if ARCH_S5PV210
906 bool "Use Samsung S3C UART 0 for low-level debug"
907 help
908 Say Y here if you want the debug print routines to direct
909 their output to UART 0. The port must have been initialised
910 by the boot-loader before use.
911
912 config DEBUG_S3C_UART1
913 depends on PLAT_SAMSUNG
914 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
915 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
916 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
917 select DEBUG_S5PV210_UART if ARCH_S5PV210
918 bool "Use Samsung S3C UART 1 for low-level debug"
919 help
920 Say Y here if you want the debug print routines to direct
921 their output to UART 1. The port must have been initialised
922 by the boot-loader before use.
923
924 config DEBUG_S3C_UART2
925 depends on PLAT_SAMSUNG
926 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
927 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
928 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
929 select DEBUG_S5PV210_UART if ARCH_S5PV210
930 bool "Use Samsung S3C UART 2 for low-level debug"
931 help
932 Say Y here if you want the debug print routines to direct
933 their output to UART 2. The port must have been initialised
934 by the boot-loader before use.
935
936 config DEBUG_S3C_UART3
937 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
938 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
939 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
940 select DEBUG_S5PV210_UART if ARCH_S5PV210
941 bool "Use Samsung S3C UART 3 for low-level debug"
942 help
943 Say Y here if you want the debug print routines to direct
944 their output to UART 3. The port must have been initialised
945 by the boot-loader before use.
946
947 config DEBUG_S3C2410_UART0
948 depends on ARCH_S3C24XX
949 select DEBUG_S3C2410_UART
950 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
951 help
952 Say Y here if you want the debug print routines to direct
953 their output to UART 0. The port must have been initialised
954 by the boot-loader before use.
955
956 config DEBUG_S3C2410_UART1
957 depends on ARCH_S3C24XX
958 select DEBUG_S3C2410_UART
959 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
960 help
961 Say Y here if you want the debug print routines to direct
962 their output to UART 1. The port must have been initialised
963 by the boot-loader before use.
964
965 config DEBUG_S3C2410_UART2
966 depends on ARCH_S3C24XX
967 select DEBUG_S3C2410_UART
968 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
969 help
970 Say Y here if you want the debug print routines to direct
971 their output to UART 2. The port must have been initialised
972 by the boot-loader before use.
973
974 config DEBUG_SA1100
975 depends on ARCH_SA1100
976 bool "Use SA1100 UARTs for low-level debug"
977 help
978 Say Y here if you want kernel low-level debugging support
979 on SA-11x0 UART ports. The kernel will check for the first
980 enabled UART in a sequence 3-1-2.
981
982 config DEBUG_SOCFPGA_UART0
983 depends on ARCH_SOCFPGA
984 bool "Use SOCFPGA UART0 for low-level debug"
985 select DEBUG_UART_8250
986 help
987 Say Y here if you want kernel low-level debugging support
988 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
989
990 config DEBUG_SOCFPGA_UART1
991 depends on ARCH_SOCFPGA
992 bool "Use SOCFPGA UART1 for low-level debug"
993 select DEBUG_UART_8250
994 help
995 Say Y here if you want kernel low-level debugging support
996 on SOCFPGA(Arria 10) based platforms.
997
998
999 config DEBUG_SUN9I_UART0
1000 bool "Kernel low-level debugging messages via sun9i UART0"
1001 depends on MACH_SUN9I
1002 select DEBUG_UART_8250
1003 help
1004 Say Y here if you want kernel low-level debugging support
1005 on Allwinner A80 based platforms on the UART0.
1006
1007 config DEBUG_SUNXI_UART0
1008 bool "Kernel low-level debugging messages via sunXi UART0"
1009 depends on ARCH_SUNXI
1010 select DEBUG_UART_8250
1011 help
1012 Say Y here if you want kernel low-level debugging support
1013 on Allwinner A1X based platforms on the UART0.
1014
1015 config DEBUG_SUNXI_UART1
1016 bool "Kernel low-level debugging messages via sunXi UART1"
1017 depends on ARCH_SUNXI
1018 select DEBUG_UART_8250
1019 help
1020 Say Y here if you want kernel low-level debugging support
1021 on Allwinner A1X based platforms on the UART1.
1022
1023 config DEBUG_SUNXI_R_UART
1024 bool "Kernel low-level debugging messages via sunXi R_UART"
1025 depends on MACH_SUN6I || MACH_SUN8I
1026 select DEBUG_UART_8250
1027 help
1028 Say Y here if you want kernel low-level debugging support
1029 on Allwinner A31/A23 based platforms on the R_UART.
1030
1031 config DEBUG_SIRFPRIMA2_UART1
1032 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1033 depends on ARCH_PRIMA2
1034 select DEBUG_SIRFSOC_UART
1035 help
1036 Say Y here if you want the debug print routines to direct
1037 their output to the uart1 port on SiRFprimaII devices.
1038
1039 config DEBUG_SIRFATLAS7_UART0
1040 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1041 depends on ARCH_ATLAS7
1042 select DEBUG_SIRFSOC_UART
1043 help
1044 Say Y here if you want the debug print routines to direct
1045 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1046 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1047 debug port can be very useful.
1048
1049 config DEBUG_SIRFATLAS7_UART1
1050 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1051 depends on ARCH_ATLAS7
1052 select DEBUG_SIRFSOC_UART
1053 help
1054 Say Y here if you want the debug print routines to direct
1055 their output to the uart1 port on SiRFATLAS7 devices.
1056
1057 config DEBUG_SPEAR3XX
1058 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1059 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1060 select DEBUG_UART_PL01X
1061 help
1062 Say Y here if you want kernel low-level debugging support
1063 on ST SPEAr based platforms.
1064
1065 config DEBUG_SPEAR13XX
1066 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1067 depends on ARCH_SPEAR13XX
1068 select DEBUG_UART_PL01X
1069 help
1070 Say Y here if you want kernel low-level debugging support
1071 on ST SPEAr13xx based platforms.
1072
1073 config STIH41X_DEBUG_ASC2
1074 bool "Use StiH415/416 ASC2 UART for low-level debug"
1075 depends on ARCH_STI
1076 select DEBUG_STI_UART
1077 help
1078 Say Y here if you want kernel low-level debugging support
1079 on STiH415/416 based platforms like b2000, which has
1080 default UART wired up to ASC2.
1081
1082 If unsure, say N.
1083
1084 config STIH41X_DEBUG_SBC_ASC1
1085 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1086 depends on ARCH_STI
1087 select DEBUG_STI_UART
1088 help
1089 Say Y here if you want kernel low-level debugging support
1090 on STiH415/416 based platforms like b2020. which has
1091 default UART wired up to SBC ASC1.
1092
1093 If unsure, say N.
1094
1095 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1096 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1097 depends on ARCH_TEGRA
1098 select DEBUG_TEGRA_UART
1099 help
1100 Automatically determines which UART to use for low-level
1101 debug based on the ODMDATA value. This value is part of
1102 the BCT, and is written to the boot memory device using
1103 nvflash, or other flashing tool. When bits 19:18 are 3,
1104 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1105 are UART A/B/C/D/E.
1106
1107 config TEGRA_DEBUG_UARTA
1108 bool "Kernel low-level debugging messages via Tegra UART A"
1109 depends on ARCH_TEGRA
1110 select DEBUG_TEGRA_UART
1111 help
1112 Say Y here if you want kernel low-level debugging support
1113 on Tegra based platforms.
1114
1115 config TEGRA_DEBUG_UARTB
1116 bool "Kernel low-level debugging messages via Tegra UART B"
1117 depends on ARCH_TEGRA
1118 select DEBUG_TEGRA_UART
1119 help
1120 Say Y here if you want kernel low-level debugging support
1121 on Tegra based platforms.
1122
1123 config TEGRA_DEBUG_UARTC
1124 bool "Kernel low-level debugging messages via Tegra UART C"
1125 depends on ARCH_TEGRA
1126 select DEBUG_TEGRA_UART
1127 help
1128 Say Y here if you want kernel low-level debugging support
1129 on Tegra based platforms.
1130
1131 config TEGRA_DEBUG_UARTD
1132 bool "Kernel low-level debugging messages via Tegra UART D"
1133 depends on ARCH_TEGRA
1134 select DEBUG_TEGRA_UART
1135 help
1136 Say Y here if you want kernel low-level debugging support
1137 on Tegra based platforms.
1138
1139 config TEGRA_DEBUG_UARTE
1140 bool "Kernel low-level debugging messages via Tegra UART E"
1141 depends on ARCH_TEGRA
1142 select DEBUG_TEGRA_UART
1143 help
1144 Say Y here if you want kernel low-level debugging support
1145 on Tegra based platforms.
1146
1147 config DEBUG_U300_UART
1148 bool "Kernel low-level debugging messages via U300 UART0"
1149 depends on ARCH_U300
1150 select DEBUG_UART_PL01X
1151 help
1152 Say Y here if you want the debug print routines to direct
1153 their output to the uart port on U300 devices.
1154
1155 config DEBUG_UX500_UART
1156 depends on ARCH_U8500
1157 bool "Use Ux500 UART for low-level debug"
1158 help
1159 Say Y here if you want kernel low-level debugging support
1160 on Ux500 based platforms.
1161
1162 config DEBUG_VERSATILE
1163 bool "Kernel low-level debugging messages via ARM Versatile UART"
1164 depends on ARCH_VERSATILE
1165 select DEBUG_UART_PL01X
1166 help
1167 Say Y here if you want kernel low-level debugging support
1168 on ARM Versatile platforms.
1169
1170 config DEBUG_VEXPRESS_UART0_DETECT
1171 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1172 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1173 help
1174 This option enables a simple heuristic which tries to determine
1175 the motherboard's memory map variant (original or RS1) and then
1176 choose the relevant UART0 base address.
1177
1178 Note that this will only work with standard A-class core tiles,
1179 and may fail with non-standard SMM or custom software models.
1180
1181 config DEBUG_VEXPRESS_UART0_CA9
1182 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1183 depends on ARCH_VEXPRESS
1184 select DEBUG_UART_PL01X
1185 help
1186 This option selects UART0 at 0x10009000. Except for custom models,
1187 this applies only to the V2P-CA9 tile.
1188
1189 config DEBUG_VEXPRESS_UART0_RS1
1190 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1191 depends on ARCH_VEXPRESS
1192 select DEBUG_UART_PL01X
1193 help
1194 This option selects UART0 at 0x1c090000. This applies to most
1195 of the tiles using the RS1 memory map, including all new A-class
1196 core tiles, FPGA-based SMMs and software models.
1197
1198 config DEBUG_VEXPRESS_UART0_CRX
1199 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1200 depends on ARCH_VEXPRESS && !MMU
1201 select DEBUG_UART_PL01X
1202 help
1203 This option selects UART0 at 0xb0090000. This is appropriate for
1204 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1205
1206 config DEBUG_VF_UART
1207 bool "Vybrid UART"
1208 depends on SOC_VF610
1209 help
1210 Say Y here if you want kernel low-level debugging support
1211 on Vybrid based platforms.
1212
1213 config DEBUG_VT8500_UART0
1214 bool "Use UART0 on VIA/Wondermedia SoCs"
1215 depends on ARCH_VT8500
1216 help
1217 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1218 devices, including VT8500, WM8505, WM8650 and WM8850.
1219
1220 config DEBUG_ZTE_ZX
1221 bool "Use ZTE ZX UART"
1222 select DEBUG_UART_PL01X
1223 depends on ARCH_ZX
1224 help
1225 Say Y here if you are enabling ZTE ZX296702 SOC and need
1226 debug uart support.
1227
1228 This option is preferred over the platform specific
1229 options; the platform specific options are deprecated
1230 and will be soon removed.
1231
1232 config DEBUG_ZYNQ_UART0
1233 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1234 depends on ARCH_ZYNQ
1235 help
1236 Say Y here if you want the debug print routines to direct
1237 their output to UART0 on the Zynq platform.
1238
1239 config DEBUG_ZYNQ_UART1
1240 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1241 depends on ARCH_ZYNQ
1242 help
1243 Say Y here if you want the debug print routines to direct
1244 their output to UART1 on the Zynq platform.
1245
1246 If you have a ZC702 board and want early boot messages to
1247 appear on the USB serial adaptor, select this option.
1248
1249 config DEBUG_ICEDCC
1250 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1251 help
1252 Say Y here if you want the debug print routines to direct
1253 their output to the EmbeddedICE macrocell's DCC channel using
1254 co-processor 14. This is known to work on the ARM9 style ICE
1255 channel and on the XScale with the PEEDI.
1256
1257 Note that the system will appear to hang during boot if there
1258 is nothing connected to read from the DCC.
1259
1260 config DEBUG_SEMIHOSTING
1261 bool "Kernel low-level debug output via semihosting I/O"
1262 help
1263 Semihosting enables code running on an ARM target to use
1264 the I/O facilities on a host debugger/emulator through a
1265 simple SVC call. The host debugger or emulator must have
1266 semihosting enabled for the special svc call to be trapped
1267 otherwise the kernel will crash.
1268
1269 This is known to work with OpenOCD, as well as
1270 ARM's Fast Models, or any other controlling environment
1271 that implements semihosting.
1272
1273 For more details about semihosting, please see
1274 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1275
1276 config DEBUG_LL_UART_8250
1277 bool "Kernel low-level debugging via 8250 UART"
1278 help
1279 Say Y here if you wish the debug print routes to direct
1280 their output to an 8250 UART. You can use this option
1281 to provide the parameters for the 8250 UART rather than
1282 selecting one of the platform specific options above if
1283 you know the parameters for the port.
1284
1285 This option is preferred over the platform specific
1286 options; the platform specific options are deprecated
1287 and will be soon removed.
1288
1289 config DEBUG_LL_UART_EFM32
1290 bool "Kernel low-level debugging via efm32 UART"
1291 depends on ARCH_EFM32
1292 help
1293 Say Y here if you want the debug print routines to direct
1294 their output to an UART or USART port on efm32 based
1295 machines. Use the following addresses for DEBUG_UART_PHYS:
1296
1297 0x4000c000 | USART0
1298 0x4000c400 | USART1
1299 0x4000c800 | USART2
1300 0x4000e000 | UART0
1301 0x4000e400 | UART1
1302
1303 config DEBUG_LL_UART_PL01X
1304 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1305 help
1306 Say Y here if you wish the debug print routes to direct
1307 their output to a PL01x Primecell UART. You can use
1308 this option to provide the parameters for the UART
1309 rather than selecting one of the platform specific
1310 options above if you know the parameters for the port.
1311
1312 This option is preferred over the platform specific
1313 options; the platform specific options are deprecated
1314 and will be soon removed.
1315
1316endchoice
1317
1318config DEBUG_AT91_UART
1319 bool
1320 depends on ARCH_AT91
1321
1322config DEBUG_EXYNOS_UART
1323 bool
1324
1325config DEBUG_S3C2410_UART
1326 bool
1327 select DEBUG_S3C24XX_UART
1328
1329config DEBUG_S3C24XX_UART
1330 bool
1331
1332config DEBUG_S3C64XX_UART
1333 bool
1334
1335config DEBUG_S5PV210_UART
1336 bool
1337
1338config DEBUG_OMAP2PLUS_UART
1339 bool
1340 depends on ARCH_OMAP2PLUS
1341
1342config DEBUG_IMX_UART_PORT
1343 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1344 DEBUG_IMX25_UART || \
1345 DEBUG_IMX21_IMX27_UART || \
1346 DEBUG_IMX31_UART || \
1347 DEBUG_IMX35_UART || \
1348 DEBUG_IMX50_UART || \
1349 DEBUG_IMX51_UART || \
1350 DEBUG_IMX53_UART || \
1351 DEBUG_IMX6Q_UART || \
1352 DEBUG_IMX6SL_UART || \
1353 DEBUG_IMX6SX_UART || \
1354 DEBUG_IMX6UL_UART || \
1355 DEBUG_IMX7D_UART
1356 default 1
1357 depends on ARCH_MXC
1358 help
1359 Choose UART port on which kernel low-level debug messages
1360 should be output.
1361
1362config DEBUG_VF_UART_PORT
1363 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1364 default 1
1365 range 0 3
1366 depends on SOC_VF610
1367 help
1368 Choose UART port on which kernel low-level debug messages
1369 should be output.
1370
1371config DEBUG_TEGRA_UART
1372 bool
1373 depends on ARCH_TEGRA
1374
1375config DEBUG_STI_UART
1376 bool
1377 depends on ARCH_STI
1378
1379config DEBUG_SIRFSOC_UART
1380 bool
1381 depends on ARCH_SIRF
1382
1383config DEBUG_LL_INCLUDE
1384 string
1385 default "debug/sa1100.S" if DEBUG_SA1100
1386 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1387 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1388 default "debug/at91.S" if DEBUG_AT91_UART
1389 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1390 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1391 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1392 default "debug/meson.S" if DEBUG_MESON_UARTAO
1393 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1394 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1395 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1396 default "debug/icedcc.S" if DEBUG_ICEDCC
1397 default "debug/imx.S" if DEBUG_IMX1_UART || \
1398 DEBUG_IMX25_UART || \
1399 DEBUG_IMX21_IMX27_UART || \
1400 DEBUG_IMX31_UART || \
1401 DEBUG_IMX35_UART || \
1402 DEBUG_IMX50_UART || \
1403 DEBUG_IMX51_UART || \
1404 DEBUG_IMX53_UART ||\
1405 DEBUG_IMX6Q_UART || \
1406 DEBUG_IMX6SL_UART || \
1407 DEBUG_IMX6SX_UART || \
1408 DEBUG_IMX6UL_UART || \
1409 DEBUG_IMX7D_UART
1410 default "debug/ks8695.S" if DEBUG_KS8695_UART
1411 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1412 default "debug/netx.S" if DEBUG_NETX_UART
1413 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1414 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1415 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1416 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1417 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1418 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1419 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1420 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1421 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1422 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1423 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1424 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1425 default "debug/sti.S" if DEBUG_STI_UART
1426 default "debug/tegra.S" if DEBUG_TEGRA_UART
1427 default "debug/ux500.S" if DEBUG_UX500_UART
1428 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1429 default "debug/vf.S" if DEBUG_VF_UART
1430 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1431 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1432 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1433 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1434 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1435 default "mach/debug-macro.S"
1436
1437# Compatibility options for PL01x
1438config DEBUG_UART_PL01X
1439 bool
1440
1441# Compatibility options for 8250
1442config DEBUG_UART_8250
1443 def_bool ARCH_EBSA110 || \
1444 ARCH_IOP13XX || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || \
1445 ARCH_RPC
1446
1447config DEBUG_UART_PHYS
1448 hex "Physical base address of debug UART"
1449 default 0x00100a00 if DEBUG_NETX_UART
1450 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1451 default 0x01c28000 if DEBUG_SUNXI_UART0
1452 default 0x01c28400 if DEBUG_SUNXI_UART1
1453 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1454 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1455 default 0x01f02800 if DEBUG_SUNXI_R_UART
1456 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1457 default 0x02531000 if DEBUG_KEYSTONE_UART1
1458 default 0x03010fe0 if ARCH_RPC
1459 default 0x07000000 if DEBUG_SUN9I_UART0
1460 default 0x09405000 if DEBUG_ZTE_ZX
1461 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1462 DEBUG_VEXPRESS_UART0_CA9
1463 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1464 default 0x10124000 if DEBUG_RK3X_UART0
1465 default 0x10126000 if DEBUG_RK3X_UART1
1466 default 0x101f1000 if DEBUG_VERSATILE
1467 default 0x101fb000 if DEBUG_NOMADIK_UART
1468 default 0x11002000 if DEBUG_MT8127_UART0
1469 default 0x11006000 if DEBUG_MT6589_UART0
1470 default 0x11009000 if DEBUG_MT8135_UART3
1471 default 0x16000000 if DEBUG_INTEGRATOR
1472 default 0x18000300 if DEBUG_BCM_5301X
1473 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1474 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1475 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1476 default 0x20001000 if DEBUG_HIP01_UART
1477 default 0x20060000 if DEBUG_RK29_UART0
1478 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1479 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1480 default 0x20201000 if DEBUG_BCM2835
1481 default 0x3f201000 if DEBUG_BCM2836
1482 default 0x3e000000 if DEBUG_BCM_KONA_UART
1483 default 0x4000e400 if DEBUG_LL_UART_EFM32
1484 default 0x40081000 if DEBUG_LPC18XX_UART0
1485 default 0x40090000 if DEBUG_LPC32XX
1486 default 0x40100000 if DEBUG_PXA_UART1
1487 default 0x42000000 if DEBUG_GEMINI
1488 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1489 DEBUG_S3C2410_UART0)
1490 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1491 DEBUG_S3C2410_UART1)
1492 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1493 DEBUG_S3C2410_UART2)
1494 default 0x78000000 if DEBUG_CNS3XXX
1495 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1496 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1497 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1498 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1499 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1500 default 0x80010000 if DEBUG_ASM9260_UART
1501 default 0x80070000 if DEBUG_IMX23_UART
1502 default 0x80074000 if DEBUG_IMX28_UART
1503 default 0x80230000 if DEBUG_PICOXCELL_UART
1504 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1505 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1506 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1507 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1508 default 0xc0013000 if DEBUG_U300_UART
1509 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1510 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1511 default 0xd0000000 if DEBUG_SPEAR3XX
1512 default 0xd0012000 if DEBUG_MVEBU_UART0
1513 default 0xc81004c0 if DEBUG_MESON_UARTAO
1514 default 0xd4017000 if DEBUG_MMP_UART2
1515 default 0xd4018000 if DEBUG_MMP_UART3
1516 default 0xe0000000 if DEBUG_SPEAR13XX
1517 default 0xe4007000 if DEBUG_HIP04_UART
1518 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1519 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1520 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1521 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1522 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1523 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1524 default 0xf0000be0 if ARCH_EBSA110
1525 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1526 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1527 default 0xf7fc9000 if DEBUG_BERLIN_UART
1528 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1529 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1530 default 0xf991e000 if DEBUG_QCOM_UARTDM
1531 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1532 default 0xfcb00000 if DEBUG_HI3620_UART
1533 default 0xfd883000 if DEBUG_ALPINE_UART0
1534 default 0xfe800000 if ARCH_IOP32X
1535 default 0xff690000 if DEBUG_RK32_UART2
1536 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1537 default 0xffc02100 if DEBUG_SOCFPGA_UART1
1538 default 0xffd82340 if ARCH_IOP13XX
1539 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1540 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1541 default 0xfff36000 if DEBUG_HIGHBANK_UART
1542 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1543 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1544 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1545 default 0xfffe8600 if DEBUG_BCM63XX_UART
1546 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1547 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1548 default 0xfffff700 if ARCH_IOP33X
1549 depends on ARCH_EP93XX || \
1550 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1551 DEBUG_LL_UART_EFM32 || \
1552 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1553 DEBUG_NETX_UART || \
1554 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1555 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1556 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1557 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1558 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1559 DEBUG_S3C64XX_UART || \
1560 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1561 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1562 DEBUG_AT91_UART
1563
1564config DEBUG_UART_VIRT
1565 hex "Virtual base address of debug UART"
1566 default 0xe0000a00 if DEBUG_NETX_UART
1567 default 0xe0010fe0 if ARCH_RPC
1568 default 0xf0000be0 if ARCH_EBSA110
1569 default 0xf0010000 if DEBUG_ASM9260_UART
1570 default 0xf01fb000 if DEBUG_NOMADIK_UART
1571 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1572 default 0xf1000300 if DEBUG_BCM_5301X
1573 default 0xf1002000 if DEBUG_MT8127_UART0
1574 default 0xf1006000 if DEBUG_MT6589_UART0
1575 default 0xf1009000 if DEBUG_MT8135_UART3
1576 default 0xf11f1000 if DEBUG_VERSATILE
1577 default 0xf1600000 if DEBUG_INTEGRATOR
1578 default 0xf1c28000 if DEBUG_SUNXI_UART0
1579 default 0xf1c28400 if DEBUG_SUNXI_UART1
1580 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1581 default 0xf31004c0 if DEBUG_MESON_UARTAO
1582 default 0xf4090000 if DEBUG_LPC32XX
1583 default 0xf4200000 if DEBUG_GEMINI
1584 default 0xf6200000 if DEBUG_PXA_UART1
1585 default 0xf7000000 if DEBUG_SUN9I_UART0
1586 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1587 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1588 DEBUG_S3C2410_UART0)
1589 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1590 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1591 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1592 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1593 DEBUG_S3C2410_UART1)
1594 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1595 DEBUG_S3C2410_UART2)
1596 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1597 default 0xf7fc9000 if DEBUG_BERLIN_UART
1598 default 0xf8007000 if DEBUG_HIP04_UART
1599 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1600 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1601 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1602 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1603 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1604 default 0xfb002000 if DEBUG_CNS3XXX
1605 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1606 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1607 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1608 default 0xfc705000 if DEBUG_ZTE_ZX
1609 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1610 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1611 default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0
1612 default 0xfd883000 if DEBUG_ALPINE_UART0
1613 default 0xfde12000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_DOVE
1614 default 0xfe012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_ORION5X
1615 default 0xfe017000 if DEBUG_MMP_UART2
1616 default 0xfe018000 if DEBUG_MMP_UART3
1617 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1618 default 0xfe230000 if DEBUG_PICOXCELL_UART
1619 default 0xfe300000 if DEBUG_BCM_KONA_UART
1620 default 0xfe800000 if ARCH_IOP32X
1621 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1622 default 0xfeb24000 if DEBUG_RK3X_UART0
1623 default 0xfeb26000 if DEBUG_RK3X_UART1
1624 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1625 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1626 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1627 default 0xfec02100 if DEBUG_SOCFPGA_UART1
1628 default 0xfec12000 if (DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE) && ARCH_MVEBU
1629 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1630 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1631 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1632 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1633 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1634 default 0xfec90000 if DEBUG_RK32_UART2
1635 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1636 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1637 default 0xfed60000 if DEBUG_RK29_UART0
1638 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1639 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1640 default 0xfedc0000 if DEBUG_EP93XX
1641 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1642 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1643 default 0xfee82340 if ARCH_IOP13XX
1644 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1645 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1646 default 0xfef36000 if DEBUG_HIGHBANK_UART
1647 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1648 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1649 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1650 default 0xfefff700 if ARCH_IOP33X
1651 default 0xff003000 if DEBUG_U300_UART
1652 default 0xffd01000 if DEBUG_HIP01_UART
1653 default DEBUG_UART_PHYS if !MMU
1654 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1655 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1656 DEBUG_NETX_UART || \
1657 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1658 DEBUG_S3C64XX_UART || \
1659 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1660 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1661 DEBUG_AT91_UART
1662
1663config DEBUG_UART_8250_SHIFT
1664 int "Register offset shift for the 8250 debug UART"
1665 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1666 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1667 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3
1668 default 2
1669
1670config DEBUG_UART_8250_WORD
1671 bool "Use 32-bit accesses for 8250 UART"
1672 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1673 depends on DEBUG_UART_8250_SHIFT >= 2
1674 default y if DEBUG_PICOXCELL_UART || \
1675 DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_UART1 || \
1676 DEBUG_KEYSTONE_UART0 || DEBUG_KEYSTONE_UART1 || \
1677 DEBUG_ALPINE_UART0 || \
1678 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1679 DEBUG_DAVINCI_DA8XX_UART2 || \
1680 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1681
1682config DEBUG_UART_8250_PALMCHIP
1683 bool "8250 UART is Palmchip BK-310x"
1684 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1685 help
1686 Palmchip provides a UART implementation compatible with 16550
1687 except for having a different register layout. Say Y here if
1688 the debug UART is of this type.
1689
1690config DEBUG_UART_8250_FLOW_CONTROL
1691 bool "Enable flow control for 8250 UART"
1692 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1693 default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1694
1695config DEBUG_UNCOMPRESS
1696 bool
1697 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1698 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1699 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1700 !DEBUG_BRCMSTB_UART
1701 help
1702 This option influences the normal decompressor output for
1703 multiplatform kernels. Normally, multiplatform kernels disable
1704 decompressor output because it is not possible to know where to
1705 send the decompressor output.
1706
1707 When this option is set, the selected DEBUG_LL output method
1708 will be re-used for normal decompressor output on multiplatform
1709 kernels.
1710
1711
1712config UNCOMPRESS_INCLUDE
1713 string
1714 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1715 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1716 default "mach/uncompress.h"
1717
1718config EARLY_PRINTK
1719 bool "Early printk"
1720 depends on DEBUG_LL
1721 help
1722 Say Y here if you want to have an early console using the
1723 kernel low-level debugging functions. Add earlyprintk to your
1724 kernel parameters to enable this console.
1725
1726config ARM_KPROBES_TEST
1727 tristate "Kprobes test module"
1728 depends on KPROBES && MODULES
1729 help
1730 Perform tests of kprobes API and instruction set simulation.
1731
1732config PID_IN_CONTEXTIDR
1733 bool "Write the current PID to the CONTEXTIDR register"
1734 depends on CPU_COPY_V6
1735 help
1736 Enabling this option causes the kernel to write the current PID to
1737 the PROCID field of the CONTEXTIDR register, at the expense of some
1738 additional instructions during context switch. Say Y here only if you
1739 are planning to use hardware trace tools with this kernel.
1740
1741config DEBUG_SET_MODULE_RONX
1742 bool "Set loadable kernel module data as NX and text as RO"
1743 depends on MODULES && MMU
1744 ---help---
1745 This option helps catch unintended modifications to loadable
1746 kernel module's text and read-only data. It also prevents execution
1747 of module data. Such protection may interfere with run-time code
1748 patching and dynamic kernel tracing - and they might also protect
1749 against certain classes of kernel exploits.
1750 If in doubt, say "N".
1751
1752source "drivers/hwtracing/coresight/Kconfig"
1753
1754endmenu