f66f6bc3f328101f66a9d9bd14a334b3fcf1454c
[openwrt/openwrt.git] / target / linux / brcm2708 / image / config.txt
1 ################################################################################
2 ## Raspberry Pi Configuration Settings
3 ##
4 ## Revision 14, 2012/10/22
5 ##
6 ## Details taken from the eLinux wiki
7 ## For up-to-date information please refer to wiki page.
8 ##
9 ## Wiki Location : http://elinux.org/RPi_config.txt
10 ##
11 ##
12 ## Description:
13 ## Details of each setting are described with each section that begins with
14 ## a double hashed comment ('##')
15 ## It is up to the user to remove the single hashed comment ('#') from each
16 ## option they want to enable, and to set the specific value of that option.
17 ##
18 ## WARNING: Setting the following combination of parameters will set a
19 ## permanent bit within the SOC and your warranty is void.
20 ## over_voltage>0, and at least one of the following:
21 ## force_turbo=1
22 ## current_limit_override=0x5A000020
23 ## temp_limit>85
24 ##
25 ## Overclock settings will be disabled at runtime if the SoC reaches temp_limit
26 ##
27 ################################################################################
28
29 ################################################################################
30 ## Standard Definition Video Settings
31 ################################################################################
32
33 ## sdtv_mode
34 ## defines the TV standard for composite output
35 ##
36 ## Value Description
37 ## -------------------------------------------------------------------------
38 ## 0 Normal NTSC (Default)
39 ## 1 Japanese version of NTSC - no pedestal
40 ## 2 Normal PAL
41 ## 3 Brazilian version of PAL - 525/60 rather than 625/50, different
42 ## subcarrier
43 ##
44 #sdtv_mode=0
45
46 ## sdtv_aspect
47 ## defines the aspect ratio for composite output
48 ##
49 ## Value Description
50 ## -------------------------------------------------------------------------
51 ## 1 4:3 (Default)
52 ## 2 14:9
53 ## 3 16:9
54 ##
55 #sdtv_aspect=1
56
57 ## sdtv_disable_colourburst
58 ## Disables colour burst on composite output. The picture will be
59 ## monochrome, but possibly sharper
60 ##
61 ## Value Description
62 ## -------------------------------------------------------------------------
63 ## 0 Colour burst is enabled (Default)
64 ## 1 Colour burst is disabled
65 ##
66 #sdtv_disable_colourburst=1
67
68 ################################################################################
69 ## High Definition Video Settings
70 ################################################################################
71
72 ## hdmi_safe
73 ## Use "safe mode" settings to try to boot with maximum hdmi compatibility.
74 ##
75 ## Value Description
76 ## -------------------------------------------------------------------------
77 ## 0 Disabled (Default)
78 ## 1 Enabled (this does: hdmi_force_hotplug=1, config_hdmi_boost=4,
79 ## hdmi_group=1, hdmi_mode=1,
80 ## disable_overscan=0)
81 ##
82 #hdmi_safe=1
83
84 ## hdmi_force_hotplug
85 ## Pretends HDMI hotplug signal is asserted so it appears a HDMI display
86 ## is attached
87 ##
88 ## Value Description
89 ## -------------------------------------------------------------------------
90 ## 0 Disabled (Default)
91 ## 1 Use HDMI mode even if no HDMI monitor is detected
92 ##
93 #hdmi_force_hotplug=1
94
95 ## hdmi_ignore_hotplug
96 ## Pretends HDMI hotplug signal is not asserted so it appears a HDMI
97 ## display is not attached
98 ##
99 ## Value Description
100 ## -------------------------------------------------------------------------
101 ## 0 Disabled (Default)
102 ## 1 Use composite mode even if HDMI monitor is detected
103 ##
104 #hdmi_ignore_hotplug=1
105
106 ## hdmi_drive
107 ## chooses between HDMI and DVI modes
108 ##
109 ## Value Description
110 ## -------------------------------------------------------------------------
111 ## 1 Normal DVI mode (No sound)
112 ## 2 Normal HDMI mode (Sound will be sent if supported and enabled)
113 ##
114 #hdmi_drive=2
115
116 ## hdmi_ignore_edid
117 ## Enables the ignoring of EDID/display data
118 ##
119 #hdmi_ignore_edid=0xa5000080
120
121 ## hdmi_edid_file
122 ## Read the EDID data from the edid.dat file instead of from the attached
123 ## device
124 ##
125 ## Value Description
126 ## -------------------------------------------------------------------------
127 ## 0 Read EDID data from attached device (Default)
128 ## 1 Read EDID data from edid.txt file
129 ##
130 #hdmi_edid_file=1
131
132 ## hdmi_force_edid_audio
133 ## Pretends all audio formats are supported by display, allowing
134 ## passthrough of DTS/AC3 even when not reported as supported.
135 ##
136 ## Value Description
137 ## -------------------------------------------------------------------------
138 ## 0 Use EDID provided values (Default)
139 ## 1 Pretend all audio formats are supported
140 ##
141 #hdmi_force_edid_audio=1
142
143 ## avoid_edid_fuzzy_match
144 ## Avoid fuzzy matching of modes described in edid.
145 ##
146 ## Value Description
147 ## -------------------------------------------------------------------------
148 ## 0 Use fuzzy matching (Default)
149 ## 1 Avoid fuzzy matching
150 ##
151 #avoid_edid_fuzzy_match=1
152
153 ## hdmi_group
154 ## Defines the HDMI type
155 ##
156 ## Value Description
157 ## -------------------------------------------------------------------------
158 ## 0 Use the preferred group reported by the edid (Default)
159 ## 1 CEA
160 ## 2 DMT
161 ##
162 #hdmi_group=1
163
164 ## hdmi_mode
165 ## defines screen resolution in CEA or DMT format
166 ##
167 ## H means 16:9 variant (of a normally 4:3 mode).
168 ## 2x means pixel doubled (i.e. higher clock rate, with each pixel repeated
169 ## twice)
170 ## 4x means pixel quadrupled (i.e. higher clock rate, with each pixel
171 ## repeated four times)
172 ## reduced blanking means fewer bytes are used for blanking within the data
173 ## stream (i.e. lower clock rate, with fewer wasted bytes)
174 ##
175 ## Value hdmi_group=CEA hdmi_group=DMT
176 ## -------------------------------------------------------------------------
177 ## 1 VGA 640x350 85Hz
178 ## 2 480p 60Hz 640x400 85Hz
179 ## 3 480p 60Hz H 720x400 85Hz
180 ## 4 720p 60Hz 640x480 60Hz
181 ## 5 1080i 60Hz 640x480 72Hz
182 ## 6 480i 60Hz 640x480 75Hz
183 ## 7 480i 60Hz H 640x480 85Hz
184 ## 8 240p 60Hz 800x600 56Hz
185 ## 9 240p 60Hz H 800x600 60Hz
186 ## 10 480i 60Hz 4x 800x600 72Hz
187 ## 11 480i 60Hz 4x H 800x600 75Hz
188 ## 12 240p 60Hz 4x 800x600 85Hz
189 ## 13 240p 60Hz 4x H 800x600 120Hz
190 ## 14 480p 60Hz 2x 848x480 60Hz
191 ## 15 480p 60Hz 2x H 1024x768 43Hz DO NOT USE
192 ## 16 1080p 60Hz 1024x768 60Hz
193 ## 17 576p 50Hz 1024x768 70Hz
194 ## 18 576p 50Hz H 1024x768 75Hz
195 ## 19 720p 50Hz 1024x768 85Hz
196 ## 20 1080i 50Hz 1024x768 120Hz
197 ## 21 576i 50Hz 1152x864 75Hz
198 ## 22 576i 50Hz H 1280x768 reduced blanking
199 ## 23 288p 50Hz 1280x768 60Hz
200 ## 24 288p 50Hz H 1280x768 75Hz
201 ## 25 576i 50Hz 4x 1280x768 85Hz
202 ## 26 576i 50Hz 4x H 1280x768 120Hz reduced blanking
203 ## 27 288p 50Hz 4x 1280x800 reduced blanking
204 ## 28 288p 50Hz 4x H 1280x800 60Hz
205 ## 29 576p 50Hz 2x 1280x800 75Hz
206 ## 30 576p 50Hz 2x H 1280x800 85Hz
207 ## 31 1080p 50Hz 1280x800 120Hz reduced blanking
208 ## 32 1080p 24Hz 1280x960 60Hz
209 ## 33 1080p 25Hz 1280x960 85Hz
210 ## 34 1080p 30Hz 1280x960 120Hz reduced blanking
211 ## 35 480p 60Hz 4x 1280x1024 60Hz
212 ## 36 480p 60Hz 4x H 1280x1024 75Hz
213 ## 37 576p 50Hz 4x 1280x1024 85Hz
214 ## 38 576p 50Hz 4x H 1280x1024 120Hz reduced blanking
215 ## 39 1080i 50Hz reduced blanking 1360x768 60Hz
216 ## 40 1080i 100Hz 1360x768 120Hz reduced blanking
217 ## 41 720p 100Hz 1400x1050 reduced blanking
218 ## 42 576p 100Hz 1400x1050 60Hz
219 ## 43 576p 100Hz H 1400x1050 75Hz
220 ## 44 576i 100Hz 1400x1050 85Hz
221 ## 45 576i 100Hz H 1400x1050 120Hz reduced blanking
222 ## 46 1080i 120Hz 1440x900 reduced blanking
223 ## 47 720p 120Hz 1440x900 60Hz
224 ## 48 480p 120Hz 1440x900 75Hz
225 ## 49 480p 120Hz H 1440x900 85Hz
226 ## 50 480i 120Hz 1440x900 120Hz reduced blanking
227 ## 51 480i 120Hz H 1600x1200 60Hz
228 ## 52 576p 200Hz 1600x1200 65Hz
229 ## 53 576p 200Hz H 1600x1200 70Hz
230 ## 54 576i 200Hz 1600x1200 75Hz
231 ## 55 576i 200Hz H 1600x1200 85Hz
232 ## 56 480p 240Hz 1600x1200 120Hz reduced blanking
233 ## 57 480p 240Hz H 1680x1050 reduced blanking
234 ## 58 480i 240Hz 1680x1050 60Hz
235 ## 59 480i 240Hz H 1680x1050 75Hz
236 ## 60 1680x1050 85Hz
237 ## 61 1680x1050 120Hz reduced blanking
238 ## 62 1792x1344 60Hz
239 ## 63 1792x1344 75Hz
240 ## 64 1792x1344 120Hz reduced blanking
241 ## 65 1856x1392 60Hz
242 ## 66 1856x1392 75Hz
243 ## 67 1856x1392 120Hz reduced blanking
244 ## 68 1920x1200 reduced blanking
245 ## 69 1920x1200 60Hz
246 ## 70 1920x1200 75Hz
247 ## 71 1920x1200 85Hz
248 ## 72 1920x1200 120Hz reduced blanking
249 ## 73 1920x1440 60Hz
250 ## 74 1920x1440 75Hz
251 ## 75 1920x1440 120Hz reduced blanking
252 ## 76 2560x1600 reduced blanking
253 ## 77 2560x1600 60Hz
254 ## 78 2560x1600 75Hz
255 ## 79 2560x1600 85Hz
256 ## 80 2560x1600 120Hz reduced blanking
257 ## 81 1366x768 60Hz
258 ## 82 1080p 60Hz
259 ## 83 1600x900 reduced blanking
260 ## 84 2048x1152 reduced blanking
261 ## 85 720p 60Hz
262 ## 86 1366x768 reduced blanking
263 ##
264 #hdmi_mode=1
265
266 ## config_hdmi_boost
267 ## configure the signal strength of the HDMI interface.
268 ##
269 ## Value Description
270 ## -------------------------------------------------------------------------
271 ## 0 (Default)
272 ## 1
273 ## 2
274 ## 3
275 ## 4 Try if you have interference issues with HDMI
276 ## 5
277 ## 6
278 ## 7 Maximum
279 ##
280 #config_hdmi_boost=0
281
282 ## hdmi_ignore_cec_init
283 ## Doesn't sent initial active source message. Avoids bringing
284 ## (CEC enabled) TV out of standby and channel switch when rebooting.
285 ##
286 ## Value Description
287 ## -------------------------------------------------------------------------
288 ## 0 Normal behaviour (Default)
289 ## 1 Doesn't sent initial active source message
290 ##
291 #hdmi_ignore_cec_init=1
292
293 ## hdmi_ignore_cec
294 ## Pretends CEC is not supported at all by TV.
295 ## No CEC functions will be supported.
296 ##
297 ## Value Description
298 ## -------------------------------------------------------------------------
299 ## 0 Normal behaviour (Default)
300 ## 1 Pretend CEC is not supported by TV
301 ##
302 #hdmi_ignore_cec=1
303
304 ################################################################################
305 ## Overscan Video Settings
306 ################################################################################
307
308 ## overscan_left
309 ## Number of pixels to skip on left
310 ##
311 #overscan_left=0
312
313 ## overscan_right
314 ## Number of pixels to skip on right
315 ##
316 #overscan_right=0
317
318 ## overscan_top
319 ## Number of pixels to skip on top
320 ##
321 #overscan_top=0
322
323 ## overscan_bottom
324 ## Number of pixels to skip on bottom
325 ##
326 #overscan_bottom=0
327
328 ## disable_overscan
329 ## Set to 1 to disable overscan
330 ##
331 ## Value Description
332 ## -------------------------------------------------------------------------
333 ## 0 Overscan Enabled (Default)
334 ## 1 Overscan Disabled
335 ##
336 #disable_overscan=1
337
338 ################################################################################
339 ## Framebuffer Video Settings
340 ################################################################################
341
342 ## framebuffer_width
343 ## Console framebuffer width in pixels. Default is display width minus
344 ## overscan.
345 ##
346 #framebuffer_width=0
347
348 ## framebuffer_height
349 ## Console framebuffer height in pixels. Default is display height minus
350 ## overscan.
351 ##
352 #framebuffer_height=0
353
354 ## framebuffer_depth
355 ## Console framebuffer depth in bits per pixel.
356 ##
357 ## Value Description
358 ## -------------------------------------------------------------------------
359 ## 8 Valid, but default RGB palette makes an unreadable screen
360 ## 16 (Default)
361 ## 24 Looks better but has corruption issues as of 2012/06/15
362 ## 32 Has no corruption issues but needs framebuffer_ignore_alpha=1
363 ## and shows the wrong colors as of 2012/06/15
364 ##
365 #framebuffer_depth=16
366
367 ## framebuffer_ignore_alpha
368 ## Set to 1 to disable alpha channel. Helps with 32bit.
369 ##
370 ## Value Description
371 ## -------------------------------------------------------------------------
372 ## 0 Enable Alpha Channel (Default)
373 ## 1 Disable Alpha Channel
374 ##
375 #framebuffer_ignore_alpha=0
376
377 ################################################################################
378 ## General Video Settings
379 ################################################################################
380
381 ## display_rotate
382 ## Rotate the display clockwise or flip the display.
383 ## The 90 and 270 degrees rotation options require additional memory on GPU,
384 ## so won't work with the 16M GPU split.
385 ##
386 ## Value Description
387 ## -------------------------------------------------------------------------
388 ## 0 0 degrees (Default)
389 ## 1 90 degrees
390 ## 2 180 degrees
391 ## 3 270 degrees
392 ## 0x10000 Horizontal flip
393 ## 0x20000 Vertical flip
394 ##
395 #display_rotate=0
396
397 ################################################################################
398 ## Licensed Codecs
399 ##
400 ## Hardware decoding of additional codecs can be enabled by purchasing a
401 ## license that is locked to the CPU serial number of your Raspberry Pi.
402 ##
403 ## Up to 8 licenses per CODEC can be specified as a comma seperated list.
404 ##
405 ################################################################################
406
407 ## decode_MPG2
408 ## License key to allow hardware MPEG-2 decoding.
409 ##
410 #decode_MPG2=0x12345678
411
412 ## decode_WVC1
413 ## License key to allow hardware VC-1 decoding.
414 ##
415 #decode_WVC1=0x12345678
416
417 ################################################################################
418 ## Test Settings
419 ################################################################################
420
421 ## test_mode
422 ## Enable test sound/image during boot for manufacturing test.
423 ##
424 ## Value Description
425 ## -------------------------------------------------------------------------
426 ## 0 Disable Test Mod (Default)
427 ## 1 Enable Test Mode
428 ##
429 #test_mode=0
430
431 ################################################################################
432 ## Memory Settings
433 ################################################################################
434
435 ## disable_l2cache
436 ## Disable arm access to GPU's L2 cache. Needs corresponding L2 disabled
437 ## kernel.
438 ##
439 ## Value Description
440 ## -------------------------------------------------------------------------
441 ## 0 Enable L2 Cache (Default)
442 ## 1 Disable L2 cache
443 ##
444 #disable_l2cache=0
445
446 ## gpu_mem
447 ## GPU memory allocation in MB for all board revisions.
448 ##
449 ## Default 64
450 ##
451 #gpu_mem=128
452
453 ## gpu_mem_256
454 ## GPU memory allocation in MB for 256MB board revision.
455 ## This option overrides gpu_mem.
456 ##
457 #gpu_mem_256=128
458
459 ## gpu_mem_512
460 ## GPU memory allocation in MB for 512MB board revision.
461 ## This option overrides gpu_mem.
462 ##
463 #gpu_mem_512=128
464
465 ## gpu_mem_1024
466 ## GPU memory allocation in MB for 1024MB board revision.
467 ## This option overrides gpu_mem.
468 ##
469 #gpu_mem_1024=128
470
471 ################################################################################
472 ## Boot Option Settings
473 ################################################################################
474
475 ## disable_commandline_tags
476 ## Stop start.elf from filling in ATAGS (memory from 0x100) before
477 ## launching kernel
478 ##
479 disable_commandline_tags=1
480
481 ## cmdline (string)
482 ## Command line parameters. Can be used instead of cmdline.txt file
483 ##
484 #cmdline=""
485
486 ## kernel (string)
487 ## Alternative name to use when loading kernel.
488 ##
489 #kernel=""
490
491 ## kernel_address
492 ## Address to load kernel.img file at
493 ##
494 kernel_address=0x8000
495
496 ## ramfsfile (string)
497 ## ramfs file to load
498 ##
499 #ramfsfile=""
500
501 ## ramfsaddr
502 ## Address to load ramfs file at
503 ##
504 #ramfsaddr=0x00000000
505
506 ## initramfs (string address)
507 ## ramfs file and address to load it at (it's like ramfsfile+ramfsaddr in
508 ## one option).
509 ##
510 ## NOTE: this option uses different syntax than all other options - you
511 ## should not use "=" character here.
512 ##
513 #initramfs initramf.gz 0x00800000
514
515 ## device_tree_address
516 ## Address to load device_tree at
517 ##
518 device_tree_address=0x100
519
520 ## init_uart_baud
521 ## Initial uart baud rate.
522 ##
523 ## Default 115200
524 ##
525 init_uart_baud=115200
526
527 ## init_uart_clock
528 ## Initial uart clock.
529 ##
530 ## Default 3000000 (3MHz)
531 ##
532 init_uart_clock=3000000
533
534 ## init_emmc_clock
535 ## Initial emmc clock, increasing this can speedup your SD-card.
536 ##
537 ## Default 100000000 (100mhz)
538 ##
539 #init_emmc_clock=100000000
540
541 ## boot_delay
542 ## Wait for a given number of seconds in start.elf before loading
543 ## kernel.img.
544 ##
545 ## delay = (1000 * boot_delay) + boot_delay_ms
546 ##
547 ## Default 1
548 ##
549 #boot_delay=0
550
551 ## boot_delay_ms
552 ## Wait for a given number of milliseconds in start.elf before loading
553 ## kernel.img.
554 ##
555 ## delay = (1000 * boot_delay) + boot_delay_ms
556 ##
557 ## Default 0
558 ##
559 #boot_delay_ms=0
560
561 ## avoid_safe_mode
562 ## Adding a jumper between pins 5 & 6 of P1 enables a recovery Safe Mode.
563 ## If pins 5 & 6 are used for connecting to external devices (e.g. GPIO),
564 ## then this setting can be used to ensure Safe Mode is not triggered.
565 ##
566 ## Value Description
567 ## -------------------------------------------------------------------------
568 ## 0 Respect Safe Mode input (Default)
569 ## 1 Ignore Safe Mode input
570 ##
571 #avoid_safe_mode=1
572
573 ################################################################################
574 ## Overclocking Settings
575 ##
576 ## ARM, SDRAM and GPU each have their own PLLs and can have unrelated
577 ## frequencies.
578 ##
579 ## The GPU core, h264, v3d and isp share a PLL, so need to have related
580 ## frequencies.
581 ## pll_freq = floor(2400 / (2 * core_freq)) * (2 * core_freq)
582 ## gpu_freq = pll_freq / [even number]
583 ##
584 ## The effective gpu_freq is automatically rounded to nearest even integer, so
585 ## asking for core_freq = 500 and gpu_freq = 300 will result in divisor of
586 ## 2000/300 = 6.666 => 6 and so 333.33MHz.
587 ##
588 ##
589 ## Standard Profiles:
590 ## arm_freq core_freq sdram_freq over_voltage
591 ## -------------------------------------------------------------------------
592 ## None 700 250 400 0
593 ## Modest 800 300 400 0
594 ## Medium 900 333 450 2
595 ## High 950 450 450 6
596 ## Turbo 1000 500 500 6
597 ##
598 ################################################################################
599
600 ## force_turbo
601 ## Control the kernel "ondemand" governor. It has no effect if no overclock
602 ## settings are specified.
603 ##
604 ## Value Description
605 ## -------------------------------------------------------------------------
606 ## 0 Enable dynamic clocks and voltage for the ARM core, GPU core and
607 ## SDRAM (Default).
608 ## Overclocking of h264_freq, v3d_freq and isp_freq is ignored.
609 ## 1 Disable dynamic clocks and voltage for the ARM core, GPU core
610 ## and SDRAM.
611 ## Overclocking of h264_freq, v3d_freq and isp_freq is allowed.
612 ##
613 #force_turbo=0
614
615 ## initial_turbo
616 ## Enables turbo mode from boot for the given value in seconds (up to 60)
617 ## or until cpufreq sets a frequency. Can help with sdcard corruption if
618 ## overclocked.
619 ##
620 ## Default 0
621 ##
622 #initial_turbo=0
623
624 ## temp_limit
625 ## Overheat protection. Sets clocks and voltages to default when the SoC
626 ## reaches this Celsius value.
627 ## Setting this higher than default voids warranty.
628 ##
629 ## Default 85
630 ##
631 #temp_limit=85
632
633 ## arm_freq
634 ## Frequency of ARM in MHz.
635 ##
636 ## Default 700.
637 ##
638 #arm_freq=700
639
640 ## arm_freq_min
641 ## Minimum frequency of ARM in MHz (used for dynamic clocking).
642 ##
643 ## Default 700.
644 ##
645 #arm_freq_min=700
646
647 ## gpu_freq
648 ## Sets core_freq, h264_freq, isp_freq, v3d_freq together.
649 ##
650 ## Default 250.
651 ##
652 #gpu_freq=250
653
654 ## core_freq
655 ## Frequency of GPU processor core in MHz. It has an impact on ARM
656 ## performance since it drives L2 cache.
657 ##
658 ## Default 250.
659 ##
660 #core_freq=250
661
662 ## core_freq_min
663 ## Minimum frequency of GPU processor core in MHz (used for dynamic
664 ## clocking). It has an impact on ARM performance since it drives L2 cache.
665 ##
666 ## Default 250.
667 ##
668 #core_freq_min=250
669
670 ## h264_freq
671 ## Frequency of hardware video block in MHz.
672 ##
673 ## Default 250.
674 ##
675 #h264_freq=250
676
677 ## isp_freq
678 ## Frequency of image sensor pipeline block in MHz.
679 ##
680 ## Default 250.
681 ##
682 #isp_freq=250
683
684 ## v3d_freq
685 ## Frequency of 3D block in MHz.
686 ##
687 ## Default 250.
688 ##
689 #v3d_freq=250
690
691 ## sdram_freq
692 ## Frequency of SDRAM in MHz.
693 ##
694 ## Default 400.
695 ##
696 #sdram_freq=400
697
698 ## sdram_freq_min
699 ## Minimum frequency of SDRAM in MHz (used for dynamic clocking).
700 ##
701 ## Default 400.
702 ##
703 #sdram_freq_min=400
704
705 ## avoid_pwm_pll
706 ## Unlink core_freq from the rest of the gpu. Analog audio should still
707 ## work, but from a fractional divider, so lower quality.
708 ##
709 ## Value Description
710 ## -------------------------------------------------------------------------
711 ## 0 Linked core_freq (Default)
712 ## 1 Unlinked core_freq
713 ##
714 #avoid_pwm_pll=1
715
716 ################################################################################
717 ## Voltage Settings
718 ################################################################################
719
720 ## current_limit_override
721 ## Disables SMPS current limit protection. Can help if you are currently
722 ## hitting a reboot failure when overclocking too high.
723 ##
724 #current_limit_override=0x5A000020
725
726 ## over_voltage
727 ## ARM/GPU core voltage adjust.
728 ##
729 ## Value Description
730 ## -------------------------------------------------------------------------
731 ## -16 0.8 V
732 ## -15 0.825 V
733 ## -14 0.85 V
734 ## -13 0.875 V
735 ## -12 0.9 V
736 ## -11 0.925 V
737 ## -10 0.95 V
738 ## -9 0.975 V
739 ## -8 1.0 V
740 ## -7 1.025 V
741 ## -6 1.05 V
742 ## -5 1.075 V
743 ## -4 1.1 V
744 ## -3 1.125 V
745 ## -2 1.15 V
746 ## -1 1.175 V
747 ## 0 1.2 V (Default)
748 ## 1 1.225 V
749 ## 2 1.25 V
750 ## 3 1.275 V
751 ## 4 1.3 V
752 ## 5 1.325 V
753 ## 6 1.35 V
754 ## 7 1.375 V (requires force_turbo=1)
755 ## 8 1.4 V (requires force_turbo=1)
756 ##
757 #over_voltage=0
758
759 ## over_voltage_min
760 ## Minimum ARM/GPU core voltage adjust (used for dynamic clocking).
761 ##
762 ## Value Description
763 ## -------------------------------------------------------------------------
764 ## -16 0.8 V
765 ## -15 0.825 V
766 ## -14 0.85 V
767 ## -13 0.875 V
768 ## -12 0.9 V
769 ## -11 0.925 V
770 ## -10 0.95 V
771 ## -9 0.975 V
772 ## -8 1.0 V
773 ## -7 1.025 V
774 ## -6 1.05 V
775 ## -5 1.075 V
776 ## -4 1.1 V
777 ## -3 1.125 V
778 ## -2 1.15 V
779 ## -1 1.175 V
780 ## 0 1.2 V (Default)
781 ## 1 1.225 V
782 ## 2 1.25 V
783 ## 3 1.275 V
784 ## 4 1.3 V
785 ## 5 1.325 V
786 ## 6 1.35 V
787 ## 7 1.375 V (requires force_turbo=1)
788 ## 8 1.4 V (requires force_turbo=1)
789 ##
790 #over_voltage_min=0
791
792 ## over_voltage_sdram
793 ## Sets over_voltage_sdram_c, over_voltage_sdram_i, over_voltage_sdram_p
794 ## together
795 ##
796 ## Value Description
797 ## -------------------------------------------------------------------------
798 ## -16 0.8 V
799 ## -15 0.825 V
800 ## -14 0.85 V
801 ## -13 0.875 V
802 ## -12 0.9 V
803 ## -11 0.925 V
804 ## -10 0.95 V
805 ## -9 0.975 V
806 ## -8 1.0 V
807 ## -7 1.025 V
808 ## -6 1.05 V
809 ## -5 1.075 V
810 ## -4 1.1 V
811 ## -3 1.125 V
812 ## -2 1.15 V
813 ## -1 1.175 V
814 ## 0 1.2 V (Default)
815 ## 1 1.225 V
816 ## 2 1.25 V
817 ## 3 1.275 V
818 ## 4 1.3 V
819 ## 5 1.325 V
820 ## 6 1.35 V
821 ## 7 1.375 V
822 ## 8 1.4 V
823 ##
824 #over_voltage_sdram=0
825
826 ## over_voltage_sdram_c
827 ## SDRAM controller voltage adjust.
828 ##
829 ## Value Description
830 ## -------------------------------------------------------------------------
831 ## -16 0.8 V
832 ## -15 0.825 V
833 ## -14 0.85 V
834 ## -13 0.875 V
835 ## -12 0.9 V
836 ## -11 0.925 V
837 ## -10 0.95 V
838 ## -9 0.975 V
839 ## -8 1.0 V
840 ## -7 1.025 V
841 ## -6 1.05 V
842 ## -5 1.075 V
843 ## -4 1.1 V
844 ## -3 1.125 V
845 ## -2 1.15 V
846 ## -1 1.175 V
847 ## 0 1.2 V (Default)
848 ## 1 1.225 V
849 ## 2 1.25 V
850 ## 3 1.275 V
851 ## 4 1.3 V
852 ## 5 1.325 V
853 ## 6 1.35 V
854 ## 7 1.375 V
855 ## 8 1.4 V
856 ##
857 #over_voltage_sdram_c=0
858
859 ## over_voltage_sdram_i
860 ## SDRAM I/O voltage adjust.
861 ##
862 ## Value Description
863 ## -------------------------------------------------------------------------
864 ## -16 0.8 V
865 ## -15 0.825 V
866 ## -14 0.85 V
867 ## -13 0.875 V
868 ## -12 0.9 V
869 ## -11 0.925 V
870 ## -10 0.95 V
871 ## -9 0.975 V
872 ## -8 1.0 V
873 ## -7 1.025 V
874 ## -6 1.05 V
875 ## -5 1.075 V
876 ## -4 1.1 V
877 ## -3 1.125 V
878 ## -2 1.15 V
879 ## -1 1.175 V
880 ## 0 1.2 V (Default)
881 ## 1 1.225 V
882 ## 2 1.25 V
883 ## 3 1.275 V
884 ## 4 1.3 V
885 ## 5 1.325 V
886 ## 6 1.35 V
887 ## 7 1.375 V
888 ## 8 1.4 V
889 ##
890 #over_voltage_sdram_i=0
891
892 ## over_voltage_sdram_p
893 ## SDRAM phy voltage adjust.
894 ##
895 ## Value Description
896 ## -------------------------------------------------------------------------
897 ## -16 0.8 V
898 ## -15 0.825 V
899 ## -14 0.85 V
900 ## -13 0.875 V
901 ## -12 0.9 V
902 ## -11 0.925 V
903 ## -10 0.95 V
904 ## -9 0.975 V
905 ## -8 1.0 V
906 ## -7 1.025 V
907 ## -6 1.05 V
908 ## -5 1.075 V
909 ## -4 1.1 V
910 ## -3 1.125 V
911 ## -2 1.15 V
912 ## -1 1.175 V
913 ## 0 1.2 V (Default)
914 ## 1 1.225 V
915 ## 2 1.25 V
916 ## 3 1.275 V
917 ## 4 1.3 V
918 ## 5 1.325 V
919 ## 6 1.35 V
920 ## 7 1.375 V
921 ## 8 1.4 V
922 ##
923 #over_voltage_sdram_p=0
924
925 ################################################################################
926 ## Device Tree Settings
927 ################################################################################
928
929 dtparam=random=on,watchdog=on,audio=on,i2c0=on,i2c1=on,spi=on