Commit | Line | Data |
---|---|---|
1394f032 BW |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
3 | # see Documentation/kbuild/kconfig-language.txt. | |
4 | # | |
5 | ||
53f8a252 | 6 | mainmenu "Blackfin Kernel Configuration" |
1394f032 BW |
7 | |
8 | config MMU | |
9 | bool | |
10 | default n | |
11 | ||
12 | config FPU | |
13 | bool | |
14 | default n | |
15 | ||
16 | config RWSEM_GENERIC_SPINLOCK | |
17 | bool | |
18 | default y | |
19 | ||
20 | config RWSEM_XCHGADD_ALGORITHM | |
21 | bool | |
22 | default n | |
23 | ||
24 | config BLACKFIN | |
25 | bool | |
26 | default y | |
ec7748b5 | 27 | select HAVE_IDE |
42d4b839 | 28 | select HAVE_OPROFILE |
a4f0b32c | 29 | select ARCH_WANT_OPTIONAL_GPIOLIB |
1394f032 | 30 | |
e3defffe AL |
31 | config ZONE_DMA |
32 | bool | |
33 | default y | |
34 | ||
1394f032 BW |
35 | config GENERIC_FIND_NEXT_BIT |
36 | bool | |
37 | default y | |
38 | ||
39 | config GENERIC_HWEIGHT | |
40 | bool | |
41 | default y | |
42 | ||
43 | config GENERIC_HARDIRQS | |
44 | bool | |
45 | default y | |
46 | ||
47 | config GENERIC_IRQ_PROBE | |
e4e9a7ad | 48 | bool |
1394f032 BW |
49 | default y |
50 | ||
b2d1583f | 51 | config GENERIC_GPIO |
1394f032 BW |
52 | bool |
53 | default y | |
54 | ||
55 | config FORCE_MAX_ZONEORDER | |
56 | int | |
57 | default "14" | |
58 | ||
59 | config GENERIC_CALIBRATE_DELAY | |
60 | bool | |
61 | default y | |
62 | ||
1394f032 | 63 | source "init/Kconfig" |
dc52ddc0 | 64 | |
1394f032 BW |
65 | source "kernel/Kconfig.preempt" |
66 | ||
dc52ddc0 MH |
67 | source "kernel/Kconfig.freezer" |
68 | ||
1394f032 BW |
69 | menu "Blackfin Processor Options" |
70 | ||
71 | comment "Processor and Board Settings" | |
72 | ||
73 | choice | |
74 | prompt "CPU" | |
75 | default BF533 | |
76 | ||
2f6f4bcd BW |
77 | config BF512 |
78 | bool "BF512" | |
79 | help | |
80 | BF512 Processor Support. | |
81 | ||
82 | config BF514 | |
83 | bool "BF514" | |
84 | help | |
85 | BF514 Processor Support. | |
86 | ||
87 | config BF516 | |
88 | bool "BF516" | |
89 | help | |
90 | BF516 Processor Support. | |
91 | ||
92 | config BF518 | |
93 | bool "BF518" | |
94 | help | |
95 | BF518 Processor Support. | |
96 | ||
59003145 MH |
97 | config BF522 |
98 | bool "BF522" | |
99 | help | |
100 | BF522 Processor Support. | |
101 | ||
1545a111 MF |
102 | config BF523 |
103 | bool "BF523" | |
104 | help | |
105 | BF523 Processor Support. | |
106 | ||
107 | config BF524 | |
108 | bool "BF524" | |
109 | help | |
110 | BF524 Processor Support. | |
111 | ||
59003145 MH |
112 | config BF525 |
113 | bool "BF525" | |
114 | help | |
115 | BF525 Processor Support. | |
116 | ||
1545a111 MF |
117 | config BF526 |
118 | bool "BF526" | |
119 | help | |
120 | BF526 Processor Support. | |
121 | ||
59003145 MH |
122 | config BF527 |
123 | bool "BF527" | |
124 | help | |
125 | BF527 Processor Support. | |
126 | ||
1394f032 BW |
127 | config BF531 |
128 | bool "BF531" | |
129 | help | |
130 | BF531 Processor Support. | |
131 | ||
132 | config BF532 | |
133 | bool "BF532" | |
134 | help | |
135 | BF532 Processor Support. | |
136 | ||
137 | config BF533 | |
138 | bool "BF533" | |
139 | help | |
140 | BF533 Processor Support. | |
141 | ||
142 | config BF534 | |
143 | bool "BF534" | |
144 | help | |
145 | BF534 Processor Support. | |
146 | ||
147 | config BF536 | |
148 | bool "BF536" | |
149 | help | |
150 | BF536 Processor Support. | |
151 | ||
152 | config BF537 | |
153 | bool "BF537" | |
154 | help | |
155 | BF537 Processor Support. | |
156 | ||
dc26aec2 MH |
157 | config BF538 |
158 | bool "BF538" | |
159 | help | |
160 | BF538 Processor Support. | |
161 | ||
162 | config BF539 | |
163 | bool "BF539" | |
164 | help | |
165 | BF539 Processor Support. | |
166 | ||
24a07a12 RH |
167 | config BF542 |
168 | bool "BF542" | |
169 | help | |
170 | BF542 Processor Support. | |
171 | ||
172 | config BF544 | |
173 | bool "BF544" | |
174 | help | |
175 | BF544 Processor Support. | |
176 | ||
7c7fd170 MF |
177 | config BF547 |
178 | bool "BF547" | |
179 | help | |
180 | BF547 Processor Support. | |
181 | ||
24a07a12 RH |
182 | config BF548 |
183 | bool "BF548" | |
184 | help | |
185 | BF548 Processor Support. | |
186 | ||
187 | config BF549 | |
188 | bool "BF549" | |
189 | help | |
190 | BF549 Processor Support. | |
191 | ||
1394f032 BW |
192 | config BF561 |
193 | bool "BF561" | |
194 | help | |
cd88b4dc | 195 | BF561 Processor Support. |
1394f032 BW |
196 | |
197 | endchoice | |
198 | ||
46fa5eec GY |
199 | config SMP |
200 | depends on BF561 | |
201 | bool "Symmetric multi-processing support" | |
202 | ---help--- | |
203 | This enables support for systems with more than one CPU, | |
204 | like the dual core BF561. If you have a system with only one | |
205 | CPU, say N. If you have a system with more than one CPU, say Y. | |
206 | ||
207 | If you don't know what to do here, say N. | |
208 | ||
209 | config NR_CPUS | |
210 | int | |
211 | depends on SMP | |
212 | default 2 if BF561 | |
213 | ||
214 | config IRQ_PER_CPU | |
215 | bool | |
216 | depends on SMP | |
217 | default y | |
218 | ||
219 | config TICK_SOURCE_SYSTMR0 | |
220 | bool | |
221 | select BFIN_GPTIMERS | |
222 | depends on SMP | |
223 | default y | |
224 | ||
0c0497c2 MF |
225 | config BF_REV_MIN |
226 | int | |
2f6f4bcd | 227 | default 0 if (BF51x || BF52x || BF54x) |
0c0497c2 MF |
228 | default 2 if (BF537 || BF536 || BF534) |
229 | default 3 if (BF561 ||BF533 || BF532 || BF531) | |
2f6f4bcd | 230 | default 4 if (BF538 || BF539) |
0c0497c2 MF |
231 | |
232 | config BF_REV_MAX | |
233 | int | |
2f6f4bcd | 234 | default 2 if (BF51x || BF52x || BF54x) |
0c0497c2 | 235 | default 3 if (BF537 || BF536 || BF534) |
2f6f4bcd | 236 | default 5 if (BF561 || BF538 || BF539) |
0c0497c2 MF |
237 | default 6 if (BF533 || BF532 || BF531) |
238 | ||
1394f032 BW |
239 | choice |
240 | prompt "Silicon Rev" | |
2f6f4bcd | 241 | default BF_REV_0_1 if (BF51x || BF52x || BF54x) |
46ce0d9a MF |
242 | default BF_REV_0_2 if (BF534 || BF536 || BF537) |
243 | default BF_REV_0_3 if (BF531 || BF532 || BF533 || BF561) | |
24a07a12 RH |
244 | |
245 | config BF_REV_0_0 | |
246 | bool "0.0" | |
2f6f4bcd | 247 | depends on (BF51x || BF52x || BF54x) |
59003145 MH |
248 | |
249 | config BF_REV_0_1 | |
d07f4380 MF |
250 | bool "0.1" |
251 | depends on (BF52x || BF54x) | |
1394f032 BW |
252 | |
253 | config BF_REV_0_2 | |
254 | bool "0.2" | |
49f7253c | 255 | depends on (BF52x || BF537 || BF536 || BF534 || BF54x) |
1394f032 BW |
256 | |
257 | config BF_REV_0_3 | |
258 | bool "0.3" | |
259 | depends on (BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531) | |
260 | ||
261 | config BF_REV_0_4 | |
262 | bool "0.4" | |
dc26aec2 | 263 | depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539) |
1394f032 BW |
264 | |
265 | config BF_REV_0_5 | |
266 | bool "0.5" | |
dc26aec2 | 267 | depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539) |
1394f032 | 268 | |
49f7253c MF |
269 | config BF_REV_0_6 |
270 | bool "0.6" | |
271 | depends on (BF533 || BF532 || BF531) | |
272 | ||
de3025f4 JZ |
273 | config BF_REV_ANY |
274 | bool "any" | |
275 | ||
276 | config BF_REV_NONE | |
277 | bool "none" | |
278 | ||
1394f032 BW |
279 | endchoice |
280 | ||
2f6f4bcd BW |
281 | config BF51x |
282 | bool | |
283 | depends on (BF512 || BF514 || BF516 || BF518) | |
284 | default y | |
285 | ||
59003145 MH |
286 | config BF52x |
287 | bool | |
1545a111 | 288 | depends on (BF522 || BF523 || BF524 || BF525 || BF526 || BF527) |
59003145 MH |
289 | default y |
290 | ||
24a07a12 RH |
291 | config BF53x |
292 | bool | |
293 | depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537) | |
294 | default y | |
295 | ||
296 | config BF54x | |
297 | bool | |
7c7fd170 | 298 | depends on (BF542 || BF544 || BF547 || BF548 || BF549) |
24a07a12 RH |
299 | default y |
300 | ||
1394f032 BW |
301 | config MEM_GENERIC_BOARD |
302 | bool | |
303 | depends on GENERIC_BOARD | |
304 | default y | |
305 | ||
306 | config MEM_MT48LC64M4A2FB_7E | |
307 | bool | |
308 | depends on (BFIN533_STAMP) | |
309 | default y | |
310 | ||
311 | config MEM_MT48LC16M16A2TG_75 | |
312 | bool | |
313 | depends on (BFIN533_EZKIT || BFIN561_EZKIT \ | |
ab472a04 | 314 | || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM \ |
9db144fe | 315 | || H8606_HVSISTEMAS || BFIN527_BLUETECHNIX_CM) |
1394f032 BW |
316 | default y |
317 | ||
318 | config MEM_MT48LC32M8A2_75 | |
319 | bool | |
dc26aec2 | 320 | depends on (BFIN537_STAMP || PNAV10 || BFIN538_EZKIT) |
1394f032 BW |
321 | default y |
322 | ||
323 | config MEM_MT48LC8M32B2B5_7 | |
324 | bool | |
325 | depends on (BFIN561_BLUETECHNIX_CM) | |
326 | default y | |
327 | ||
59003145 MH |
328 | config MEM_MT48LC32M16A2TG_75 |
329 | bool | |
8cc7117e | 330 | depends on (BFIN527_EZKIT || BFIN532_IP0X || BLACKSTAMP || BFIN526_EZBRD) |
59003145 MH |
331 | default y |
332 | ||
2f6f4bcd | 333 | source "arch/blackfin/mach-bf518/Kconfig" |
59003145 | 334 | source "arch/blackfin/mach-bf527/Kconfig" |
1394f032 BW |
335 | source "arch/blackfin/mach-bf533/Kconfig" |
336 | source "arch/blackfin/mach-bf561/Kconfig" | |
337 | source "arch/blackfin/mach-bf537/Kconfig" | |
dc26aec2 | 338 | source "arch/blackfin/mach-bf538/Kconfig" |
24a07a12 | 339 | source "arch/blackfin/mach-bf548/Kconfig" |
1394f032 BW |
340 | |
341 | menu "Board customizations" | |
342 | ||
343 | config CMDLINE_BOOL | |
344 | bool "Default bootloader kernel arguments" | |
345 | ||
346 | config CMDLINE | |
347 | string "Initial kernel command string" | |
348 | depends on CMDLINE_BOOL | |
349 | default "console=ttyBF0,57600" | |
350 | help | |
351 | If you don't have a boot loader capable of passing a command line string | |
352 | to the kernel, you may specify one here. As a minimum, you should specify | |
353 | the memory size and the root device (e.g., mem=8M, root=/dev/nfs). | |
354 | ||
5f004c20 MF |
355 | config BOOT_LOAD |
356 | hex "Kernel load address for booting" | |
357 | default "0x1000" | |
358 | range 0x1000 0x20000000 | |
359 | help | |
360 | This option allows you to set the load address of the kernel. | |
361 | This can be useful if you are on a board which has a small amount | |
362 | of memory or you wish to reserve some memory at the beginning of | |
363 | the address space. | |
364 | ||
365 | Note that you need to keep this value above 4k (0x1000) as this | |
366 | memory region is used to capture NULL pointer references as well | |
367 | as some core kernel functions. | |
368 | ||
8cc7117e MH |
369 | config ROM_BASE |
370 | hex "Kernel ROM Base" | |
86249911 | 371 | depends on ROMKERNEL |
8cc7117e MH |
372 | default "0x20040000" |
373 | range 0x20000000 0x20400000 if !(BF54x || BF561) | |
374 | range 0x20000000 0x30000000 if (BF54x || BF561) | |
375 | help | |
376 | ||
f16295e7 | 377 | comment "Clock/PLL Setup" |
1394f032 BW |
378 | |
379 | config CLKIN_HZ | |
2fb6cb41 | 380 | int "Frequency of the crystal on the board in Hz" |
1394f032 BW |
381 | default "11059200" if BFIN533_STAMP |
382 | default "27000000" if BFIN533_EZKIT | |
2f6f4bcd | 383 | default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN538_EZKIT || BFIN518F-EZBRD) |
1394f032 BW |
384 | default "30000000" if BFIN561_EZKIT |
385 | default "24576000" if PNAV10 | |
5d1617b2 | 386 | default "10000000" if BFIN532_IP0X |
1394f032 BW |
387 | help |
388 | The frequency of CLKIN crystal oscillator on the board in Hz. | |
2fb6cb41 SZ |
389 | Warning: This value should match the crystal on the board. Otherwise, |
390 | peripherals won't work properly. | |
1394f032 | 391 | |
f16295e7 RG |
392 | config BFIN_KERNEL_CLOCK |
393 | bool "Re-program Clocks while Kernel boots?" | |
394 | default n | |
395 | help | |
396 | This option decides if kernel clocks are re-programed from the | |
397 | bootloader settings. If the clocks are not set, the SDRAM settings | |
398 | are also not changed, and the Bootloader does 100% of the hardware | |
399 | configuration. | |
400 | ||
401 | config PLL_BYPASS | |
e4e9a7ad MF |
402 | bool "Bypass PLL" |
403 | depends on BFIN_KERNEL_CLOCK | |
404 | default n | |
f16295e7 RG |
405 | |
406 | config CLKIN_HALF | |
407 | bool "Half Clock In" | |
408 | depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS) | |
409 | default n | |
410 | help | |
411 | If this is set the clock will be divided by 2, before it goes to the PLL. | |
412 | ||
413 | config VCO_MULT | |
414 | int "VCO Multiplier" | |
415 | depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS) | |
416 | range 1 64 | |
417 | default "22" if BFIN533_EZKIT | |
418 | default "45" if BFIN533_STAMP | |
dc26aec2 | 419 | default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT || BFIN548_BLUETECHNIX_CM || BFIN538_EZKIT) |
f16295e7 | 420 | default "22" if BFIN533_BLUETECHNIX_CM |
9db144fe | 421 | default "20" if (BFIN537_BLUETECHNIX_CM || BFIN527_BLUETECHNIX_CM || BFIN561_BLUETECHNIX_CM) |
f16295e7 | 422 | default "20" if BFIN561_EZKIT |
2f6f4bcd | 423 | default "16" if (H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN518F_EZBRD) |
f16295e7 RG |
424 | help |
425 | This controls the frequency of the on-chip PLL. This can be between 1 and 64. | |
426 | PLL Frequency = (Crystal Frequency) * (this setting) | |
427 | ||
428 | choice | |
429 | prompt "Core Clock Divider" | |
430 | depends on BFIN_KERNEL_CLOCK | |
431 | default CCLK_DIV_1 | |
432 | help | |
433 | This sets the frequency of the core. It can be 1, 2, 4 or 8 | |
434 | Core Frequency = (PLL frequency) / (this setting) | |
435 | ||
436 | config CCLK_DIV_1 | |
437 | bool "1" | |
438 | ||
439 | config CCLK_DIV_2 | |
440 | bool "2" | |
441 | ||
442 | config CCLK_DIV_4 | |
443 | bool "4" | |
444 | ||
445 | config CCLK_DIV_8 | |
446 | bool "8" | |
447 | endchoice | |
448 | ||
449 | config SCLK_DIV | |
450 | int "System Clock Divider" | |
451 | depends on BFIN_KERNEL_CLOCK | |
452 | range 1 15 | |
5f004c20 | 453 | default 5 |
f16295e7 RG |
454 | help |
455 | This sets the frequency of the system clock (including SDRAM or DDR). | |
456 | This can be between 1 and 15 | |
457 | System Clock = (PLL frequency) / (this setting) | |
458 | ||
5f004c20 MF |
459 | choice |
460 | prompt "DDR SDRAM Chip Type" | |
461 | depends on BFIN_KERNEL_CLOCK | |
462 | depends on BF54x | |
463 | default MEM_MT46V32M16_5B | |
464 | ||
465 | config MEM_MT46V32M16_6T | |
466 | bool "MT46V32M16_6T" | |
467 | ||
468 | config MEM_MT46V32M16_5B | |
469 | bool "MT46V32M16_5B" | |
470 | endchoice | |
471 | ||
73feb5c0 MH |
472 | choice |
473 | prompt "DDR/SDRAM Timing" | |
474 | depends on BFIN_KERNEL_CLOCK | |
475 | default BFIN_KERNEL_CLOCK_MEMINIT_CALC | |
476 | help | |
477 | This option allows you to specify Blackfin SDRAM/DDR Timing parameters | |
478 | The calculated SDRAM timing parameters may not be 100% | |
479 | accurate - This option is therefore marked experimental. | |
480 | ||
481 | config BFIN_KERNEL_CLOCK_MEMINIT_CALC | |
482 | bool "Calculate Timings (EXPERIMENTAL)" | |
483 | depends on EXPERIMENTAL | |
484 | ||
485 | config BFIN_KERNEL_CLOCK_MEMINIT_SPEC | |
486 | bool "Provide accurate Timings based on target SCLK" | |
487 | help | |
488 | Please consult the Blackfin Hardware Reference Manuals as well | |
489 | as the memory device datasheet. | |
490 | http://docs.blackfin.uclinux.org/doku.php?id=bfin:sdram | |
491 | endchoice | |
492 | ||
493 | menu "Memory Init Control" | |
494 | depends on BFIN_KERNEL_CLOCK_MEMINIT_SPEC | |
495 | ||
496 | config MEM_DDRCTL0 | |
497 | depends on BF54x | |
498 | hex "DDRCTL0" | |
499 | default 0x0 | |
500 | ||
501 | config MEM_DDRCTL1 | |
502 | depends on BF54x | |
503 | hex "DDRCTL1" | |
504 | default 0x0 | |
505 | ||
506 | config MEM_DDRCTL2 | |
507 | depends on BF54x | |
508 | hex "DDRCTL2" | |
509 | default 0x0 | |
510 | ||
511 | config MEM_EBIU_DDRQUE | |
512 | depends on BF54x | |
513 | hex "DDRQUE" | |
514 | default 0x0 | |
515 | ||
516 | config MEM_SDRRC | |
517 | depends on !BF54x | |
518 | hex "SDRRC" | |
519 | default 0x0 | |
520 | ||
521 | config MEM_SDGCTL | |
522 | depends on !BF54x | |
523 | hex "SDGCTL" | |
524 | default 0x0 | |
525 | endmenu | |
526 | ||
7eb2c23f MF |
527 | config MAX_MEM_SIZE |
528 | int "Max SDRAM Memory Size in MBytes" | |
529 | depends on !MPU | |
530 | default 512 | |
531 | help | |
532 | This is the max memory size that the kernel will create CPLB | |
533 | tables for. Your system will not be able to handle any more. | |
534 | ||
f16295e7 RG |
535 | # |
536 | # Max & Min Speeds for various Chips | |
537 | # | |
538 | config MAX_VCO_HZ | |
539 | int | |
2f6f4bcd BW |
540 | default 400000000 if BF512 |
541 | default 400000000 if BF514 | |
542 | default 400000000 if BF516 | |
543 | default 400000000 if BF518 | |
f16295e7 | 544 | default 600000000 if BF522 |
1545a111 MF |
545 | default 400000000 if BF523 |
546 | default 400000000 if BF524 | |
f16295e7 | 547 | default 600000000 if BF525 |
1545a111 | 548 | default 400000000 if BF526 |
f16295e7 RG |
549 | default 600000000 if BF527 |
550 | default 400000000 if BF531 | |
551 | default 400000000 if BF532 | |
552 | default 750000000 if BF533 | |
553 | default 500000000 if BF534 | |
554 | default 400000000 if BF536 | |
555 | default 600000000 if BF537 | |
f72eecb9 RG |
556 | default 533333333 if BF538 |
557 | default 533333333 if BF539 | |
f16295e7 | 558 | default 600000000 if BF542 |
f72eecb9 | 559 | default 533333333 if BF544 |
1545a111 MF |
560 | default 600000000 if BF547 |
561 | default 600000000 if BF548 | |
f72eecb9 | 562 | default 533333333 if BF549 |
f16295e7 RG |
563 | default 600000000 if BF561 |
564 | ||
565 | config MIN_VCO_HZ | |
566 | int | |
567 | default 50000000 | |
568 | ||
569 | config MAX_SCLK_HZ | |
570 | int | |
f72eecb9 | 571 | default 133333333 |
f16295e7 RG |
572 | |
573 | config MIN_SCLK_HZ | |
574 | int | |
575 | default 27000000 | |
576 | ||
577 | comment "Kernel Timer/Scheduler" | |
578 | ||
579 | source kernel/Kconfig.hz | |
580 | ||
8b5f79f9 VM |
581 | config GENERIC_TIME |
582 | bool "Generic time" | |
46fa5eec | 583 | depends on !SMP |
8b5f79f9 VM |
584 | default y |
585 | ||
586 | config GENERIC_CLOCKEVENTS | |
587 | bool "Generic clock events" | |
588 | depends on GENERIC_TIME | |
589 | default y | |
590 | ||
591 | config CYCLES_CLOCKSOURCE | |
592 | bool "Use 'CYCLES' as a clocksource (EXPERIMENTAL)" | |
593 | depends on EXPERIMENTAL | |
594 | depends on GENERIC_CLOCKEVENTS | |
595 | depends on !BFIN_SCRATCH_REG_CYCLES | |
596 | default n | |
597 | help | |
598 | If you say Y here, you will enable support for using the 'cycles' | |
599 | registers as a clock source. Doing so means you will be unable to | |
600 | safely write to the 'cycles' register during runtime. You will | |
601 | still be able to read it (such as for performance monitoring), but | |
602 | writing the registers will most likely crash the kernel. | |
603 | ||
604 | source kernel/time/Kconfig | |
605 | ||
5f004c20 | 606 | comment "Misc" |
971d5bc4 | 607 | |
f0b5d12f MF |
608 | choice |
609 | prompt "Blackfin Exception Scratch Register" | |
610 | default BFIN_SCRATCH_REG_RETN | |
611 | help | |
612 | Select the resource to reserve for the Exception handler: | |
613 | - RETN: Non-Maskable Interrupt (NMI) | |
614 | - RETE: Exception Return (JTAG/ICE) | |
615 | - CYCLES: Performance counter | |
616 | ||
617 | If you are unsure, please select "RETN". | |
618 | ||
619 | config BFIN_SCRATCH_REG_RETN | |
620 | bool "RETN" | |
621 | help | |
622 | Use the RETN register in the Blackfin exception handler | |
623 | as a stack scratch register. This means you cannot | |
624 | safely use NMI on the Blackfin while running Linux, but | |
625 | you can debug the system with a JTAG ICE and use the | |
626 | CYCLES performance registers. | |
627 | ||
628 | If you are unsure, please select "RETN". | |
629 | ||
630 | config BFIN_SCRATCH_REG_RETE | |
631 | bool "RETE" | |
632 | help | |
633 | Use the RETE register in the Blackfin exception handler | |
634 | as a stack scratch register. This means you cannot | |
635 | safely use a JTAG ICE while debugging a Blackfin board, | |
636 | but you can safely use the CYCLES performance registers | |
637 | and the NMI. | |
638 | ||
639 | If you are unsure, please select "RETN". | |
640 | ||
641 | config BFIN_SCRATCH_REG_CYCLES | |
642 | bool "CYCLES" | |
643 | help | |
644 | Use the CYCLES register in the Blackfin exception handler | |
645 | as a stack scratch register. This means you cannot | |
646 | safely use the CYCLES performance registers on a Blackfin | |
647 | board at anytime, but you can debug the system with a JTAG | |
648 | ICE and use the NMI. | |
649 | ||
650 | If you are unsure, please select "RETN". | |
651 | ||
652 | endchoice | |
653 | ||
1394f032 BW |
654 | endmenu |
655 | ||
656 | ||
657 | menu "Blackfin Kernel Optimizations" | |
46fa5eec | 658 | depends on !SMP |
1394f032 | 659 | |
1394f032 BW |
660 | comment "Memory Optimizations" |
661 | ||
662 | config I_ENTRY_L1 | |
663 | bool "Locate interrupt entry code in L1 Memory" | |
664 | default y | |
665 | help | |
01dd2fbf ML |
666 | If enabled, interrupt entry code (STORE/RESTORE CONTEXT) is linked |
667 | into L1 instruction memory. (less latency) | |
1394f032 BW |
668 | |
669 | config EXCPT_IRQ_SYSC_L1 | |
01dd2fbf | 670 | bool "Locate entire ASM lowlevel exception / interrupt - Syscall and CPLB handler code in L1 Memory" |
1394f032 BW |
671 | default y |
672 | help | |
01dd2fbf | 673 | If enabled, the entire ASM lowlevel exception and interrupt entry code |
cfefe3c6 | 674 | (STORE/RESTORE CONTEXT) is linked into L1 instruction memory. |
01dd2fbf | 675 | (less latency) |
1394f032 BW |
676 | |
677 | config DO_IRQ_L1 | |
678 | bool "Locate frequently called do_irq dispatcher function in L1 Memory" | |
679 | default y | |
680 | help | |
01dd2fbf ML |
681 | If enabled, the frequently called do_irq dispatcher function is linked |
682 | into L1 instruction memory. (less latency) | |
1394f032 BW |
683 | |
684 | config CORE_TIMER_IRQ_L1 | |
685 | bool "Locate frequently called timer_interrupt() function in L1 Memory" | |
686 | default y | |
687 | help | |
01dd2fbf ML |
688 | If enabled, the frequently called timer_interrupt() function is linked |
689 | into L1 instruction memory. (less latency) | |
1394f032 BW |
690 | |
691 | config IDLE_L1 | |
692 | bool "Locate frequently idle function in L1 Memory" | |
693 | default y | |
694 | help | |
01dd2fbf ML |
695 | If enabled, the frequently called idle function is linked |
696 | into L1 instruction memory. (less latency) | |
1394f032 BW |
697 | |
698 | config SCHEDULE_L1 | |
699 | bool "Locate kernel schedule function in L1 Memory" | |
700 | default y | |
701 | help | |
01dd2fbf ML |
702 | If enabled, the frequently called kernel schedule is linked |
703 | into L1 instruction memory. (less latency) | |
1394f032 BW |
704 | |
705 | config ARITHMETIC_OPS_L1 | |
706 | bool "Locate kernel owned arithmetic functions in L1 Memory" | |
707 | default y | |
708 | help | |
01dd2fbf ML |
709 | If enabled, arithmetic functions are linked |
710 | into L1 instruction memory. (less latency) | |
1394f032 BW |
711 | |
712 | config ACCESS_OK_L1 | |
713 | bool "Locate access_ok function in L1 Memory" | |
714 | default y | |
715 | help | |
01dd2fbf ML |
716 | If enabled, the access_ok function is linked |
717 | into L1 instruction memory. (less latency) | |
1394f032 BW |
718 | |
719 | config MEMSET_L1 | |
720 | bool "Locate memset function in L1 Memory" | |
721 | default y | |
722 | help | |
01dd2fbf ML |
723 | If enabled, the memset function is linked |
724 | into L1 instruction memory. (less latency) | |
1394f032 BW |
725 | |
726 | config MEMCPY_L1 | |
727 | bool "Locate memcpy function in L1 Memory" | |
728 | default y | |
729 | help | |
01dd2fbf ML |
730 | If enabled, the memcpy function is linked |
731 | into L1 instruction memory. (less latency) | |
1394f032 BW |
732 | |
733 | config SYS_BFIN_SPINLOCK_L1 | |
734 | bool "Locate sys_bfin_spinlock function in L1 Memory" | |
735 | default y | |
736 | help | |
01dd2fbf ML |
737 | If enabled, sys_bfin_spinlock function is linked |
738 | into L1 instruction memory. (less latency) | |
1394f032 BW |
739 | |
740 | config IP_CHECKSUM_L1 | |
741 | bool "Locate IP Checksum function in L1 Memory" | |
742 | default n | |
743 | help | |
01dd2fbf ML |
744 | If enabled, the IP Checksum function is linked |
745 | into L1 instruction memory. (less latency) | |
1394f032 BW |
746 | |
747 | config CACHELINE_ALIGNED_L1 | |
748 | bool "Locate cacheline_aligned data to L1 Data Memory" | |
157cc5aa MH |
749 | default y if !BF54x |
750 | default n if BF54x | |
1394f032 BW |
751 | depends on !BF531 |
752 | help | |
01dd2fbf ML |
753 | If enabled, cacheline_anligned data is linked |
754 | into L1 data memory. (less latency) | |
1394f032 BW |
755 | |
756 | config SYSCALL_TAB_L1 | |
757 | bool "Locate Syscall Table L1 Data Memory" | |
758 | default n | |
759 | depends on !BF531 | |
760 | help | |
01dd2fbf ML |
761 | If enabled, the Syscall LUT is linked |
762 | into L1 data memory. (less latency) | |
1394f032 BW |
763 | |
764 | config CPLB_SWITCH_TAB_L1 | |
765 | bool "Locate CPLB Switch Tables L1 Data Memory" | |
766 | default n | |
767 | depends on !BF531 | |
768 | help | |
01dd2fbf ML |
769 | If enabled, the CPLB Switch Tables are linked |
770 | into L1 data memory. (less latency) | |
1394f032 | 771 | |
ca87b7ad GY |
772 | config APP_STACK_L1 |
773 | bool "Support locating application stack in L1 Scratch Memory" | |
774 | default y | |
775 | help | |
776 | If enabled the application stack can be located in L1 | |
777 | scratch memory (less latency). | |
778 | ||
779 | Currently only works with FLAT binaries. | |
780 | ||
6ad2b84c MF |
781 | config EXCEPTION_L1_SCRATCH |
782 | bool "Locate exception stack in L1 Scratch Memory" | |
783 | default n | |
784 | depends on !APP_STACK_L1 && !SYSCALL_TAB_L1 | |
785 | help | |
786 | Whenever an exception occurs, use the L1 Scratch memory for | |
787 | stack storage. You cannot place the stacks of FLAT binaries | |
788 | in L1 when using this option. | |
789 | ||
790 | If you don't use L1 Scratch, then you should say Y here. | |
791 | ||
251383c7 RG |
792 | comment "Speed Optimizations" |
793 | config BFIN_INS_LOWOVERHEAD | |
794 | bool "ins[bwl] low overhead, higher interrupt latency" | |
795 | default y | |
796 | help | |
797 | Reads on the Blackfin are speculative. In Blackfin terms, this means | |
798 | they can be interrupted at any time (even after they have been issued | |
799 | on to the external bus), and re-issued after the interrupt occurs. | |
800 | For memory - this is not a big deal, since memory does not change if | |
801 | it sees a read. | |
802 | ||
803 | If a FIFO is sitting on the end of the read, it will see two reads, | |
804 | when the core only sees one since the FIFO receives both the read | |
805 | which is cancelled (and not delivered to the core) and the one which | |
806 | is re-issued (which is delivered to the core). | |
807 | ||
808 | To solve this, interrupts are turned off before reads occur to | |
809 | I/O space. This option controls which the overhead/latency of | |
810 | controlling interrupts during this time | |
811 | "n" turns interrupts off every read | |
812 | (higher overhead, but lower interrupt latency) | |
813 | "y" turns interrupts off every loop | |
814 | (low overhead, but longer interrupt latency) | |
815 | ||
816 | default behavior is to leave this set to on (type "Y"). If you are experiencing | |
817 | interrupt latency issues, it is safe and OK to turn this off. | |
818 | ||
1394f032 BW |
819 | endmenu |
820 | ||
1394f032 BW |
821 | choice |
822 | prompt "Kernel executes from" | |
823 | help | |
824 | Choose the memory type that the kernel will be running in. | |
825 | ||
826 | config RAMKERNEL | |
827 | bool "RAM" | |
828 | help | |
829 | The kernel will be resident in RAM when running. | |
830 | ||
831 | config ROMKERNEL | |
832 | bool "ROM" | |
833 | help | |
834 | The kernel will be resident in FLASH/ROM when running. | |
835 | ||
836 | endchoice | |
837 | ||
838 | source "mm/Kconfig" | |
839 | ||
780431e3 MF |
840 | config BFIN_GPTIMERS |
841 | tristate "Enable Blackfin General Purpose Timers API" | |
842 | default n | |
843 | help | |
844 | Enable support for the General Purpose Timers API. If you | |
845 | are unsure, say N. | |
846 | ||
847 | To compile this driver as a module, choose M here: the module | |
848 | will be called gptimers.ko. | |
849 | ||
1394f032 | 850 | choice |
d292b000 | 851 | prompt "Uncached DMA region" |
1394f032 | 852 | default DMA_UNCACHED_1M |
86ad7932 CC |
853 | config DMA_UNCACHED_4M |
854 | bool "Enable 4M DMA region" | |
1394f032 BW |
855 | config DMA_UNCACHED_2M |
856 | bool "Enable 2M DMA region" | |
857 | config DMA_UNCACHED_1M | |
858 | bool "Enable 1M DMA region" | |
859 | config DMA_UNCACHED_NONE | |
860 | bool "Disable DMA region" | |
861 | endchoice | |
862 | ||
863 | ||
864 | comment "Cache Support" | |
3bebca2d | 865 | config BFIN_ICACHE |
1394f032 | 866 | bool "Enable ICACHE" |
3bebca2d | 867 | config BFIN_DCACHE |
1394f032 | 868 | bool "Enable DCACHE" |
3bebca2d | 869 | config BFIN_DCACHE_BANKA |
1394f032 | 870 | bool "Enable only 16k BankA DCACHE - BankB is SRAM" |
3bebca2d | 871 | depends on BFIN_DCACHE && !BF531 |
1394f032 | 872 | default n |
3bebca2d RG |
873 | config BFIN_ICACHE_LOCK |
874 | bool "Enable Instruction Cache Locking" | |
1394f032 BW |
875 | |
876 | choice | |
877 | prompt "Policy" | |
3bebca2d | 878 | depends on BFIN_DCACHE |
46fa5eec GY |
879 | default BFIN_WB if !SMP |
880 | default BFIN_WT if SMP | |
3bebca2d | 881 | config BFIN_WB |
1394f032 | 882 | bool "Write back" |
46fa5eec | 883 | depends on !SMP |
1394f032 BW |
884 | help |
885 | Write Back Policy: | |
886 | Cached data will be written back to SDRAM only when needed. | |
887 | This can give a nice increase in performance, but beware of | |
888 | broken drivers that do not properly invalidate/flush their | |
889 | cache. | |
890 | ||
891 | Write Through Policy: | |
892 | Cached data will always be written back to SDRAM when the | |
893 | cache is updated. This is a completely safe setting, but | |
894 | performance is worse than Write Back. | |
895 | ||
896 | If you are unsure of the options and you want to be safe, | |
897 | then go with Write Through. | |
898 | ||
3bebca2d | 899 | config BFIN_WT |
1394f032 BW |
900 | bool "Write through" |
901 | help | |
902 | Write Back Policy: | |
903 | Cached data will be written back to SDRAM only when needed. | |
904 | This can give a nice increase in performance, but beware of | |
905 | broken drivers that do not properly invalidate/flush their | |
906 | cache. | |
907 | ||
908 | Write Through Policy: | |
909 | Cached data will always be written back to SDRAM when the | |
910 | cache is updated. This is a completely safe setting, but | |
911 | performance is worse than Write Back. | |
912 | ||
913 | If you are unsure of the options and you want to be safe, | |
914 | then go with Write Through. | |
915 | ||
916 | endchoice | |
917 | ||
f099f39a SZ |
918 | config BFIN_L2_CACHEABLE |
919 | bool "Cache L2 SRAM" | |
94106e0f | 920 | depends on (BFIN_DCACHE || BFIN_ICACHE) && (BF54x || (BF561 && !SMP)) |
f099f39a SZ |
921 | default n |
922 | help | |
923 | Select to make L2 SRAM cacheable in L1 data and instruction cache. | |
924 | ||
b97b8a99 BS |
925 | config MPU |
926 | bool "Enable the memory protection unit (EXPERIMENTAL)" | |
927 | default n | |
928 | help | |
929 | Use the processor's MPU to protect applications from accessing | |
930 | memory they do not own. This comes at a performance penalty | |
931 | and is recommended only for debugging. | |
932 | ||
1394f032 BW |
933 | comment "Asynchonous Memory Configuration" |
934 | ||
ddf416b2 | 935 | menu "EBIU_AMGCTL Global Control" |
1394f032 BW |
936 | config C_AMCKEN |
937 | bool "Enable CLKOUT" | |
938 | default y | |
939 | ||
940 | config C_CDPRIO | |
941 | bool "DMA has priority over core for ext. accesses" | |
942 | default n | |
943 | ||
944 | config C_B0PEN | |
945 | depends on BF561 | |
946 | bool "Bank 0 16 bit packing enable" | |
947 | default y | |
948 | ||
949 | config C_B1PEN | |
950 | depends on BF561 | |
951 | bool "Bank 1 16 bit packing enable" | |
952 | default y | |
953 | ||
954 | config C_B2PEN | |
955 | depends on BF561 | |
956 | bool "Bank 2 16 bit packing enable" | |
957 | default y | |
958 | ||
959 | config C_B3PEN | |
960 | depends on BF561 | |
961 | bool "Bank 3 16 bit packing enable" | |
962 | default n | |
963 | ||
964 | choice | |
965 | prompt"Enable Asynchonous Memory Banks" | |
966 | default C_AMBEN_ALL | |
967 | ||
968 | config C_AMBEN | |
969 | bool "Disable All Banks" | |
970 | ||
971 | config C_AMBEN_B0 | |
972 | bool "Enable Bank 0" | |
973 | ||
974 | config C_AMBEN_B0_B1 | |
975 | bool "Enable Bank 0 & 1" | |
976 | ||
977 | config C_AMBEN_B0_B1_B2 | |
978 | bool "Enable Bank 0 & 1 & 2" | |
979 | ||
980 | config C_AMBEN_ALL | |
981 | bool "Enable All Banks" | |
982 | endchoice | |
983 | endmenu | |
984 | ||
985 | menu "EBIU_AMBCTL Control" | |
986 | config BANK_0 | |
987 | hex "Bank 0" | |
988 | default 0x7BB0 | |
989 | ||
990 | config BANK_1 | |
991 | hex "Bank 1" | |
992 | default 0x7BB0 | |
197fba56 | 993 | default 0x5558 if BF54x |
1394f032 BW |
994 | |
995 | config BANK_2 | |
996 | hex "Bank 2" | |
997 | default 0x7BB0 | |
998 | ||
999 | config BANK_3 | |
1000 | hex "Bank 3" | |
1001 | default 0x99B3 | |
1002 | endmenu | |
1003 | ||
e40540b3 SZ |
1004 | config EBIU_MBSCTLVAL |
1005 | hex "EBIU Bank Select Control Register" | |
1006 | depends on BF54x | |
1007 | default 0 | |
1008 | ||
1009 | config EBIU_MODEVAL | |
1010 | hex "Flash Memory Mode Control Register" | |
1011 | depends on BF54x | |
1012 | default 1 | |
1013 | ||
1014 | config EBIU_FCTLVAL | |
1015 | hex "Flash Memory Bank Control Register" | |
1016 | depends on BF54x | |
1017 | default 6 | |
f994607a GY |
1018 | |
1019 | config HARDWARE_PM | |
1020 | bool "OProfile use hardware porformance monitor" | |
3e706cfc | 1021 | depends on OPROFILE=y |
f994607a GY |
1022 | default n |
1023 | ||
1394f032 BW |
1024 | endmenu |
1025 | ||
1026 | ############################################################################# | |
1027 | menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)" | |
1028 | ||
1029 | config PCI | |
1030 | bool "PCI support" | |
a95ca3b2 | 1031 | depends on BROKEN |
1394f032 BW |
1032 | help |
1033 | Support for PCI bus. | |
1034 | ||
1035 | source "drivers/pci/Kconfig" | |
1036 | ||
1037 | config HOTPLUG | |
1038 | bool "Support for hot-pluggable device" | |
1039 | help | |
1040 | Say Y here if you want to plug devices into your computer while | |
1041 | the system is running, and be able to use them quickly. In many | |
1042 | cases, the devices can likewise be unplugged at any time too. | |
1043 | ||
1044 | One well known example of this is PCMCIA- or PC-cards, credit-card | |
1045 | size devices such as network cards, modems or hard drives which are | |
1046 | plugged into slots found on all modern laptop computers. Another | |
1047 | example, used on modern desktops as well as laptops, is USB. | |
1048 | ||
a81792f6 JB |
1049 | Enable HOTPLUG and build a modular kernel. Get agent software |
1050 | (from <http://linux-hotplug.sourceforge.net/>) and install it. | |
1394f032 BW |
1051 | Then your kernel will automatically call out to a user mode "policy |
1052 | agent" (/sbin/hotplug) to load modules and set up software needed | |
1053 | to use devices as you hotplug them. | |
1054 | ||
1055 | source "drivers/pcmcia/Kconfig" | |
1056 | ||
1057 | source "drivers/pci/hotplug/Kconfig" | |
1058 | ||
1059 | endmenu | |
1060 | ||
1061 | menu "Executable file formats" | |
1062 | ||
1063 | source "fs/Kconfig.binfmt" | |
1064 | ||
1065 | endmenu | |
1066 | ||
1067 | menu "Power management options" | |
1068 | source "kernel/power/Kconfig" | |
1069 | ||
f4cb5700 JB |
1070 | config ARCH_SUSPEND_POSSIBLE |
1071 | def_bool y | |
1072 | depends on !SMP | |
1073 | ||
1394f032 | 1074 | choice |
1efc80b5 | 1075 | prompt "Standby Power Saving Mode" |
1394f032 | 1076 | depends on PM |
cfefe3c6 MH |
1077 | default PM_BFIN_SLEEP_DEEPER |
1078 | config PM_BFIN_SLEEP_DEEPER | |
1079 | bool "Sleep Deeper" | |
1080 | help | |
1081 | Sleep "Deeper" Mode (High Power Savings) - This mode reduces dynamic | |
1082 | power dissipation by disabling the clock to the processor core (CCLK). | |
1083 | Furthermore, Standby sets the internal power supply voltage (VDDINT) | |
1084 | to 0.85 V to provide the greatest power savings, while preserving the | |
1085 | processor state. | |
1086 | The PLL and system clock (SCLK) continue to operate at a very low | |
1087 | frequency of about 3.3 MHz. To preserve data integrity in the SDRAM, | |
1088 | the SDRAM is put into Self Refresh Mode. Typically an external event | |
1089 | such as GPIO interrupt or RTC activity wakes up the processor. | |
1090 | Various Peripherals such as UART, SPORT, PPI may not function as | |
1091 | normal during Sleep Deeper, due to the reduced SCLK frequency. | |
1092 | When in the sleep mode, system DMA access to L1 memory is not supported. | |
1093 | ||
1efc80b5 MH |
1094 | If unsure, select "Sleep Deeper". |
1095 | ||
cfefe3c6 MH |
1096 | config PM_BFIN_SLEEP |
1097 | bool "Sleep" | |
1098 | help | |
1099 | Sleep Mode (High Power Savings) - The sleep mode reduces power | |
1100 | dissipation by disabling the clock to the processor core (CCLK). | |
1101 | The PLL and system clock (SCLK), however, continue to operate in | |
1102 | this mode. Typically an external event or RTC activity will wake | |
1efc80b5 MH |
1103 | up the processor. When in the sleep mode, system DMA access to L1 |
1104 | memory is not supported. | |
1105 | ||
1106 | If unsure, select "Sleep Deeper". | |
cfefe3c6 | 1107 | endchoice |
1394f032 | 1108 | |
1394f032 | 1109 | config PM_WAKEUP_BY_GPIO |
1efc80b5 | 1110 | bool "Allow Wakeup from Standby by GPIO" |
1394f032 BW |
1111 | |
1112 | config PM_WAKEUP_GPIO_NUMBER | |
1efc80b5 | 1113 | int "GPIO number" |
1394f032 BW |
1114 | range 0 47 |
1115 | depends on PM_WAKEUP_BY_GPIO | |
d1a3336e | 1116 | default 2 |
1394f032 BW |
1117 | |
1118 | choice | |
1119 | prompt "GPIO Polarity" | |
1120 | depends on PM_WAKEUP_BY_GPIO | |
1121 | default PM_WAKEUP_GPIO_POLAR_H | |
1122 | config PM_WAKEUP_GPIO_POLAR_H | |
1123 | bool "Active High" | |
1124 | config PM_WAKEUP_GPIO_POLAR_L | |
1125 | bool "Active Low" | |
1126 | config PM_WAKEUP_GPIO_POLAR_EDGE_F | |
1127 | bool "Falling EDGE" | |
1128 | config PM_WAKEUP_GPIO_POLAR_EDGE_R | |
1129 | bool "Rising EDGE" | |
1130 | config PM_WAKEUP_GPIO_POLAR_EDGE_B | |
1131 | bool "Both EDGE" | |
1132 | endchoice | |
1133 | ||
1efc80b5 MH |
1134 | comment "Possible Suspend Mem / Hibernate Wake-Up Sources" |
1135 | depends on PM | |
1136 | ||
1efc80b5 MH |
1137 | config PM_BFIN_WAKE_PH6 |
1138 | bool "Allow Wake-Up from on-chip PHY or PH6 GP" | |
2f6f4bcd | 1139 | depends on PM && (BF51x || BF52x || BF534 || BF536 || BF537) |
1efc80b5 MH |
1140 | default n |
1141 | help | |
1142 | Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up) | |
1143 | ||
1efc80b5 MH |
1144 | config PM_BFIN_WAKE_GP |
1145 | bool "Allow Wake-Up from GPIOs" | |
1146 | depends on PM && BF54x | |
1147 | default n | |
1148 | help | |
1149 | Enable General-Purpose Wake-Up (Voltage Regulator Power-Up) | |
1394f032 BW |
1150 | endmenu |
1151 | ||
1394f032 BW |
1152 | menu "CPU Frequency scaling" |
1153 | ||
1154 | source "drivers/cpufreq/Kconfig" | |
1155 | ||
5ad2ca5f MH |
1156 | config BFIN_CPU_FREQ |
1157 | bool | |
1158 | depends on CPU_FREQ | |
1159 | select CPU_FREQ_TABLE | |
1160 | default y | |
1161 | ||
14b03204 MH |
1162 | config CPU_VOLTAGE |
1163 | bool "CPU Voltage scaling" | |
73feb5c0 | 1164 | depends on EXPERIMENTAL |
14b03204 MH |
1165 | depends on CPU_FREQ |
1166 | default n | |
1167 | help | |
1168 | Say Y here if you want CPU voltage scaling according to the CPU frequency. | |
1169 | This option violates the PLL BYPASS recommendation in the Blackfin Processor | |
73feb5c0 | 1170 | manuals. There is a theoretical risk that during VDDINT transitions |
14b03204 MH |
1171 | the PLL may unlock. |
1172 | ||
1394f032 BW |
1173 | endmenu |
1174 | ||
1394f032 BW |
1175 | source "net/Kconfig" |
1176 | ||
1177 | source "drivers/Kconfig" | |
1178 | ||
1179 | source "fs/Kconfig" | |
1180 | ||
74ce8322 | 1181 | source "arch/blackfin/Kconfig.debug" |
1394f032 BW |
1182 | |
1183 | source "security/Kconfig" | |
1184 | ||
1185 | source "crypto/Kconfig" | |
1186 | ||
1187 | source "lib/Kconfig" |