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Commit | Line | Data |
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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 | |
27 | ||
e3defffe AL |
28 | config ZONE_DMA |
29 | bool | |
30 | default y | |
31 | ||
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32 | config BFIN |
33 | bool | |
34 | default y | |
35 | ||
36 | config SEMAPHORE_SLEEPERS | |
37 | bool | |
38 | default y | |
39 | ||
40 | config GENERIC_FIND_NEXT_BIT | |
41 | bool | |
42 | default y | |
43 | ||
44 | config GENERIC_HWEIGHT | |
45 | bool | |
46 | default y | |
47 | ||
48 | config GENERIC_HARDIRQS | |
49 | bool | |
50 | default y | |
51 | ||
52 | config GENERIC_IRQ_PROBE | |
53 | bool | |
54 | default y | |
55 | ||
56 | config GENERIC_TIME | |
57 | bool | |
58 | default n | |
59 | ||
b2d1583f | 60 | config GENERIC_GPIO |
1394f032 BW |
61 | bool |
62 | default y | |
63 | ||
64 | config FORCE_MAX_ZONEORDER | |
65 | int | |
66 | default "14" | |
67 | ||
68 | config GENERIC_CALIBRATE_DELAY | |
69 | bool | |
70 | default y | |
71 | ||
72 | config IRQCHIP_DEMUX_GPIO | |
73 | bool | |
59003145 | 74 | depends on (BF52x || BF53x || BF561 || BF54x) |
1394f032 BW |
75 | default y |
76 | ||
77 | source "init/Kconfig" | |
78 | source "kernel/Kconfig.preempt" | |
79 | ||
80 | menu "Blackfin Processor Options" | |
81 | ||
82 | comment "Processor and Board Settings" | |
83 | ||
84 | choice | |
85 | prompt "CPU" | |
86 | default BF533 | |
87 | ||
59003145 MH |
88 | config BF522 |
89 | bool "BF522" | |
90 | help | |
91 | BF522 Processor Support. | |
92 | ||
93 | config BF525 | |
94 | bool "BF525" | |
95 | help | |
96 | BF525 Processor Support. | |
97 | ||
98 | config BF527 | |
99 | bool "BF527" | |
100 | help | |
101 | BF527 Processor Support. | |
102 | ||
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103 | config BF531 |
104 | bool "BF531" | |
105 | help | |
106 | BF531 Processor Support. | |
107 | ||
108 | config BF532 | |
109 | bool "BF532" | |
110 | help | |
111 | BF532 Processor Support. | |
112 | ||
113 | config BF533 | |
114 | bool "BF533" | |
115 | help | |
116 | BF533 Processor Support. | |
117 | ||
118 | config BF534 | |
119 | bool "BF534" | |
120 | help | |
121 | BF534 Processor Support. | |
122 | ||
123 | config BF536 | |
124 | bool "BF536" | |
125 | help | |
126 | BF536 Processor Support. | |
127 | ||
128 | config BF537 | |
129 | bool "BF537" | |
130 | help | |
131 | BF537 Processor Support. | |
132 | ||
24a07a12 RH |
133 | config BF542 |
134 | bool "BF542" | |
135 | help | |
136 | BF542 Processor Support. | |
137 | ||
138 | config BF544 | |
139 | bool "BF544" | |
140 | help | |
141 | BF544 Processor Support. | |
142 | ||
143 | config BF548 | |
144 | bool "BF548" | |
145 | help | |
146 | BF548 Processor Support. | |
147 | ||
148 | config BF549 | |
149 | bool "BF549" | |
150 | help | |
151 | BF549 Processor Support. | |
152 | ||
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153 | config BF561 |
154 | bool "BF561" | |
155 | help | |
156 | Not Supported Yet - Work in progress - BF561 Processor Support. | |
157 | ||
158 | endchoice | |
159 | ||
160 | choice | |
161 | prompt "Silicon Rev" | |
59003145 | 162 | default BF_REV_0_1 if BF527 |
1394f032 BW |
163 | default BF_REV_0_2 if BF537 |
164 | default BF_REV_0_3 if BF533 | |
24a07a12 RH |
165 | default BF_REV_0_0 if BF549 |
166 | ||
167 | config BF_REV_0_0 | |
168 | bool "0.0" | |
d07f4380 | 169 | depends on (BF52x || BF54x) |
59003145 MH |
170 | |
171 | config BF_REV_0_1 | |
d07f4380 MF |
172 | bool "0.1" |
173 | depends on (BF52x || BF54x) | |
1394f032 BW |
174 | |
175 | config BF_REV_0_2 | |
176 | bool "0.2" | |
177 | depends on (BF537 || BF536 || BF534) | |
178 | ||
179 | config BF_REV_0_3 | |
180 | bool "0.3" | |
181 | depends on (BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531) | |
182 | ||
183 | config BF_REV_0_4 | |
184 | bool "0.4" | |
185 | depends on (BF561 || BF533 || BF532 || BF531) | |
186 | ||
187 | config BF_REV_0_5 | |
188 | bool "0.5" | |
189 | depends on (BF561 || BF533 || BF532 || BF531) | |
190 | ||
de3025f4 JZ |
191 | config BF_REV_ANY |
192 | bool "any" | |
193 | ||
194 | config BF_REV_NONE | |
195 | bool "none" | |
196 | ||
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197 | endchoice |
198 | ||
59003145 MH |
199 | config BF52x |
200 | bool | |
201 | depends on (BF522 || BF525 || BF527) | |
202 | default y | |
203 | ||
24a07a12 RH |
204 | config BF53x |
205 | bool | |
206 | depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537) | |
207 | default y | |
208 | ||
209 | config BF54x | |
210 | bool | |
211 | depends on (BF542 || BF544 || BF548 || BF549) | |
212 | default y | |
213 | ||
1394f032 BW |
214 | config BFIN_DUAL_CORE |
215 | bool | |
216 | depends on (BF561) | |
217 | default y | |
218 | ||
219 | config BFIN_SINGLE_CORE | |
220 | bool | |
221 | depends on !BFIN_DUAL_CORE | |
222 | default y | |
223 | ||
1394f032 BW |
224 | config MEM_GENERIC_BOARD |
225 | bool | |
226 | depends on GENERIC_BOARD | |
227 | default y | |
228 | ||
229 | config MEM_MT48LC64M4A2FB_7E | |
230 | bool | |
231 | depends on (BFIN533_STAMP) | |
232 | default y | |
233 | ||
234 | config MEM_MT48LC16M16A2TG_75 | |
235 | bool | |
236 | depends on (BFIN533_EZKIT || BFIN561_EZKIT \ | |
ab472a04 JH |
237 | || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM \ |
238 | || H8606_HVSISTEMAS) | |
1394f032 BW |
239 | default y |
240 | ||
241 | config MEM_MT48LC32M8A2_75 | |
242 | bool | |
243 | depends on (BFIN537_STAMP || PNAV10) | |
244 | default y | |
245 | ||
246 | config MEM_MT48LC8M32B2B5_7 | |
247 | bool | |
248 | depends on (BFIN561_BLUETECHNIX_CM) | |
249 | default y | |
250 | ||
59003145 MH |
251 | config MEM_MT48LC32M16A2TG_75 |
252 | bool | |
253 | depends on (BFIN527_EZKIT) | |
254 | default y | |
255 | ||
1394f032 BW |
256 | config BFIN_SHARED_FLASH_ENET |
257 | bool | |
258 | depends on (BFIN533_STAMP) | |
259 | default y | |
260 | ||
59003145 | 261 | source "arch/blackfin/mach-bf527/Kconfig" |
1394f032 BW |
262 | source "arch/blackfin/mach-bf533/Kconfig" |
263 | source "arch/blackfin/mach-bf561/Kconfig" | |
264 | source "arch/blackfin/mach-bf537/Kconfig" | |
24a07a12 | 265 | source "arch/blackfin/mach-bf548/Kconfig" |
1394f032 BW |
266 | |
267 | menu "Board customizations" | |
268 | ||
269 | config CMDLINE_BOOL | |
270 | bool "Default bootloader kernel arguments" | |
271 | ||
272 | config CMDLINE | |
273 | string "Initial kernel command string" | |
274 | depends on CMDLINE_BOOL | |
275 | default "console=ttyBF0,57600" | |
276 | help | |
277 | If you don't have a boot loader capable of passing a command line string | |
278 | to the kernel, you may specify one here. As a minimum, you should specify | |
279 | the memory size and the root device (e.g., mem=8M, root=/dev/nfs). | |
280 | ||
f16295e7 | 281 | comment "Clock/PLL Setup" |
1394f032 BW |
282 | |
283 | config CLKIN_HZ | |
284 | int "Crystal Frequency in Hz" | |
285 | default "11059200" if BFIN533_STAMP | |
286 | default "27000000" if BFIN533_EZKIT | |
ab472a04 | 287 | default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS) |
1394f032 BW |
288 | default "30000000" if BFIN561_EZKIT |
289 | default "24576000" if PNAV10 | |
290 | help | |
291 | The frequency of CLKIN crystal oscillator on the board in Hz. | |
292 | ||
f16295e7 RG |
293 | config BFIN_KERNEL_CLOCK |
294 | bool "Re-program Clocks while Kernel boots?" | |
295 | default n | |
296 | help | |
297 | This option decides if kernel clocks are re-programed from the | |
298 | bootloader settings. If the clocks are not set, the SDRAM settings | |
299 | are also not changed, and the Bootloader does 100% of the hardware | |
300 | configuration. | |
301 | ||
302 | config PLL_BYPASS | |
303 | bool "Bypass PLL" | |
304 | depends on BFIN_KERNEL_CLOCK | |
305 | default n | |
306 | ||
307 | config CLKIN_HALF | |
308 | bool "Half Clock In" | |
309 | depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS) | |
310 | default n | |
311 | help | |
312 | If this is set the clock will be divided by 2, before it goes to the PLL. | |
313 | ||
314 | config VCO_MULT | |
315 | int "VCO Multiplier" | |
316 | depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS) | |
317 | range 1 64 | |
318 | default "22" if BFIN533_EZKIT | |
319 | default "45" if BFIN533_STAMP | |
59003145 | 320 | default "20" if (BFIN537_STAMP || BFIN527_EZKIT) |
f16295e7 RG |
321 | default "22" if BFIN533_BLUETECHNIX_CM |
322 | default "20" if BFIN537_BLUETECHNIX_CM | |
323 | default "20" if BFIN561_BLUETECHNIX_CM | |
324 | default "20" if BFIN561_EZKIT | |
ab472a04 | 325 | default "16" if H8606_HVSISTEMAS |
f16295e7 RG |
326 | help |
327 | This controls the frequency of the on-chip PLL. This can be between 1 and 64. | |
328 | PLL Frequency = (Crystal Frequency) * (this setting) | |
329 | ||
330 | choice | |
331 | prompt "Core Clock Divider" | |
332 | depends on BFIN_KERNEL_CLOCK | |
333 | default CCLK_DIV_1 | |
334 | help | |
335 | This sets the frequency of the core. It can be 1, 2, 4 or 8 | |
336 | Core Frequency = (PLL frequency) / (this setting) | |
337 | ||
338 | config CCLK_DIV_1 | |
339 | bool "1" | |
340 | ||
341 | config CCLK_DIV_2 | |
342 | bool "2" | |
343 | ||
344 | config CCLK_DIV_4 | |
345 | bool "4" | |
346 | ||
347 | config CCLK_DIV_8 | |
348 | bool "8" | |
349 | endchoice | |
350 | ||
351 | config SCLK_DIV | |
352 | int "System Clock Divider" | |
353 | depends on BFIN_KERNEL_CLOCK | |
354 | range 1 15 | |
355 | default 5 if BFIN533_EZKIT | |
356 | default 5 if BFIN533_STAMP | |
59003145 | 357 | default 4 if (BFIN537_STAMP || BFIN527_EZKIT) |
f16295e7 RG |
358 | default 5 if BFIN533_BLUETECHNIX_CM |
359 | default 4 if BFIN537_BLUETECHNIX_CM | |
360 | default 4 if BFIN561_BLUETECHNIX_CM | |
361 | default 5 if BFIN561_EZKIT | |
ab472a04 | 362 | default 3 if H8606_HVSISTEMAS |
f16295e7 RG |
363 | help |
364 | This sets the frequency of the system clock (including SDRAM or DDR). | |
365 | This can be between 1 and 15 | |
366 | System Clock = (PLL frequency) / (this setting) | |
367 | ||
368 | # | |
369 | # Max & Min Speeds for various Chips | |
370 | # | |
371 | config MAX_VCO_HZ | |
372 | int | |
373 | default 600000000 if BF522 | |
374 | default 600000000 if BF525 | |
375 | default 600000000 if BF527 | |
376 | default 400000000 if BF531 | |
377 | default 400000000 if BF532 | |
378 | default 750000000 if BF533 | |
379 | default 500000000 if BF534 | |
380 | default 400000000 if BF536 | |
381 | default 600000000 if BF537 | |
382 | default 533000000 if BF538 | |
383 | default 533000000 if BF539 | |
384 | default 600000000 if BF542 | |
385 | default 533000000 if BF544 | |
386 | default 533000000 if BF549 | |
387 | default 600000000 if BF561 | |
388 | ||
389 | config MIN_VCO_HZ | |
390 | int | |
391 | default 50000000 | |
392 | ||
393 | config MAX_SCLK_HZ | |
394 | int | |
395 | default 133000000 | |
396 | ||
397 | config MIN_SCLK_HZ | |
398 | int | |
399 | default 27000000 | |
400 | ||
401 | comment "Kernel Timer/Scheduler" | |
402 | ||
403 | source kernel/Kconfig.hz | |
404 | ||
405 | comment "Memory Setup" | |
406 | ||
1394f032 BW |
407 | config MEM_SIZE |
408 | int "SDRAM Memory Size in MBytes" | |
409 | default 32 if BFIN533_EZKIT | |
59003145 | 410 | default 64 if BFIN527_EZKIT |
1394f032 BW |
411 | default 64 if BFIN537_STAMP |
412 | default 64 if BFIN561_EZKIT | |
413 | default 128 if BFIN533_STAMP | |
414 | default 64 if PNAV10 | |
ab472a04 | 415 | default 32 if H8606_HVSISTEMAS |
1394f032 BW |
416 | |
417 | config MEM_ADD_WIDTH | |
418 | int "SDRAM Memory Address Width" | |
419 | default 9 if BFIN533_EZKIT | |
420 | default 9 if BFIN561_EZKIT | |
ab472a04 | 421 | default 9 if H8606_HVSISTEMAS |
59003145 | 422 | default 10 if BFIN527_EZKIT |
1394f032 BW |
423 | default 10 if BFIN537_STAMP |
424 | default 11 if BFIN533_STAMP | |
425 | default 10 if PNAV10 | |
426 | ||
427 | config ENET_FLASH_PIN | |
428 | int "PF port/pin used for flash and ethernet sharing" | |
429 | depends on (BFIN533_STAMP) | |
430 | default 0 | |
431 | help | |
432 | PF port/pin used for flash and ethernet sharing to allow other PF | |
433 | pins to be used on other platforms without having to touch common | |
434 | code. | |
435 | For example: PF0 --> 0,PF1 --> 1,PF2 --> 2, etc. | |
436 | ||
437 | config BOOT_LOAD | |
438 | hex "Kernel load address for booting" | |
439 | default "0x1000" | |
2d8f161f | 440 | range 0x1000 0x20000000 |
1394f032 BW |
441 | help |
442 | This option allows you to set the load address of the kernel. | |
443 | This can be useful if you are on a board which has a small amount | |
444 | of memory or you wish to reserve some memory at the beginning of | |
445 | the address space. | |
446 | ||
2d8f161f MF |
447 | Note that you need to keep this value above 4k (0x1000) as this |
448 | memory region is used to capture NULL pointer references as well | |
449 | as some core kernel functions. | |
1394f032 BW |
450 | |
451 | comment "LED Status Indicators" | |
452 | depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) | |
453 | ||
454 | config BFIN_ALIVE_LED | |
455 | bool "Enable Board Alive" | |
456 | depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) | |
457 | default n | |
458 | help | |
459 | Blink the LEDs you select when the kernel is running. Helps detect | |
460 | a hung kernel. | |
461 | ||
462 | config BFIN_ALIVE_LED_NUM | |
463 | int "LED" | |
464 | depends on BFIN_ALIVE_LED | |
465 | range 1 3 if BFIN533_STAMP | |
466 | default "3" if BFIN533_STAMP | |
467 | help | |
468 | Select the LED (marked on the board) for you to blink. | |
469 | ||
470 | config BFIN_IDLE_LED | |
471 | bool "Enable System Load/Idle LED" | |
472 | depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) | |
473 | default n | |
474 | help | |
475 | Blinks the LED you select when to determine kernel load. | |
476 | ||
477 | config BFIN_IDLE_LED_NUM | |
478 | int "LED" | |
479 | depends on BFIN_IDLE_LED | |
480 | range 1 3 if BFIN533_STAMP | |
481 | default "2" if BFIN533_STAMP | |
482 | help | |
483 | Select the LED (marked on the board) for you to blink. | |
484 | ||
f0b5d12f MF |
485 | choice |
486 | prompt "Blackfin Exception Scratch Register" | |
487 | default BFIN_SCRATCH_REG_RETN | |
488 | help | |
489 | Select the resource to reserve for the Exception handler: | |
490 | - RETN: Non-Maskable Interrupt (NMI) | |
491 | - RETE: Exception Return (JTAG/ICE) | |
492 | - CYCLES: Performance counter | |
493 | ||
494 | If you are unsure, please select "RETN". | |
495 | ||
496 | config BFIN_SCRATCH_REG_RETN | |
497 | bool "RETN" | |
498 | help | |
499 | Use the RETN register in the Blackfin exception handler | |
500 | as a stack scratch register. This means you cannot | |
501 | safely use NMI on the Blackfin while running Linux, but | |
502 | you can debug the system with a JTAG ICE and use the | |
503 | CYCLES performance registers. | |
504 | ||
505 | If you are unsure, please select "RETN". | |
506 | ||
507 | config BFIN_SCRATCH_REG_RETE | |
508 | bool "RETE" | |
509 | help | |
510 | Use the RETE register in the Blackfin exception handler | |
511 | as a stack scratch register. This means you cannot | |
512 | safely use a JTAG ICE while debugging a Blackfin board, | |
513 | but you can safely use the CYCLES performance registers | |
514 | and the NMI. | |
515 | ||
516 | If you are unsure, please select "RETN". | |
517 | ||
518 | config BFIN_SCRATCH_REG_CYCLES | |
519 | bool "CYCLES" | |
520 | help | |
521 | Use the CYCLES register in the Blackfin exception handler | |
522 | as a stack scratch register. This means you cannot | |
523 | safely use the CYCLES performance registers on a Blackfin | |
524 | board at anytime, but you can debug the system with a JTAG | |
525 | ICE and use the NMI. | |
526 | ||
527 | If you are unsure, please select "RETN". | |
528 | ||
529 | endchoice | |
530 | ||
1394f032 BW |
531 | # |
532 | # Sorry - but you need to put the hex address here - | |
533 | # | |
534 | ||
535 | # Flag Data register | |
536 | config BFIN_ALIVE_LED_PORT | |
537 | hex | |
538 | default 0xFFC00700 if (BFIN533_STAMP) | |
539 | ||
540 | # Peripheral Flag Direction Register | |
541 | config BFIN_ALIVE_LED_DPORT | |
542 | hex | |
543 | default 0xFFC00730 if (BFIN533_STAMP) | |
544 | ||
545 | config BFIN_ALIVE_LED_PIN | |
546 | hex | |
547 | default 0x04 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 1) | |
548 | default 0x08 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 2) | |
549 | default 0x10 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 3) | |
550 | ||
551 | config BFIN_IDLE_LED_PORT | |
552 | hex | |
553 | default 0xFFC00700 if (BFIN533_STAMP) | |
554 | ||
555 | # Peripheral Flag Direction Register | |
556 | config BFIN_IDLE_LED_DPORT | |
557 | hex | |
558 | default 0xFFC00730 if (BFIN533_STAMP) | |
559 | ||
560 | config BFIN_IDLE_LED_PIN | |
561 | hex | |
562 | default 0x04 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 1) | |
563 | default 0x08 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 2) | |
564 | default 0x10 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 3) | |
565 | ||
1394f032 BW |
566 | endmenu |
567 | ||
568 | ||
569 | menu "Blackfin Kernel Optimizations" | |
570 | ||
1394f032 BW |
571 | comment "Memory Optimizations" |
572 | ||
573 | config I_ENTRY_L1 | |
574 | bool "Locate interrupt entry code in L1 Memory" | |
575 | default y | |
576 | help | |
01dd2fbf ML |
577 | If enabled, interrupt entry code (STORE/RESTORE CONTEXT) is linked |
578 | into L1 instruction memory. (less latency) | |
1394f032 BW |
579 | |
580 | config EXCPT_IRQ_SYSC_L1 | |
01dd2fbf | 581 | bool "Locate entire ASM lowlevel exception / interrupt - Syscall and CPLB handler code in L1 Memory" |
1394f032 BW |
582 | default y |
583 | help | |
01dd2fbf ML |
584 | If enabled, the entire ASM lowlevel exception and interrupt entry code |
585 | (STORE/RESTORE CONTEXT) is linked into L1 instruction memory. | |
586 | (less latency) | |
1394f032 BW |
587 | |
588 | config DO_IRQ_L1 | |
589 | bool "Locate frequently called do_irq dispatcher function in L1 Memory" | |
590 | default y | |
591 | help | |
01dd2fbf ML |
592 | If enabled, the frequently called do_irq dispatcher function is linked |
593 | into L1 instruction memory. (less latency) | |
1394f032 BW |
594 | |
595 | config CORE_TIMER_IRQ_L1 | |
596 | bool "Locate frequently called timer_interrupt() function in L1 Memory" | |
597 | default y | |
598 | help | |
01dd2fbf ML |
599 | If enabled, the frequently called timer_interrupt() function is linked |
600 | into L1 instruction memory. (less latency) | |
1394f032 BW |
601 | |
602 | config IDLE_L1 | |
603 | bool "Locate frequently idle function in L1 Memory" | |
604 | default y | |
605 | help | |
01dd2fbf ML |
606 | If enabled, the frequently called idle function is linked |
607 | into L1 instruction memory. (less latency) | |
1394f032 BW |
608 | |
609 | config SCHEDULE_L1 | |
610 | bool "Locate kernel schedule function in L1 Memory" | |
611 | default y | |
612 | help | |
01dd2fbf ML |
613 | If enabled, the frequently called kernel schedule is linked |
614 | into L1 instruction memory. (less latency) | |
1394f032 BW |
615 | |
616 | config ARITHMETIC_OPS_L1 | |
617 | bool "Locate kernel owned arithmetic functions in L1 Memory" | |
618 | default y | |
619 | help | |
01dd2fbf ML |
620 | If enabled, arithmetic functions are linked |
621 | into L1 instruction memory. (less latency) | |
1394f032 BW |
622 | |
623 | config ACCESS_OK_L1 | |
624 | bool "Locate access_ok function in L1 Memory" | |
625 | default y | |
626 | help | |
01dd2fbf ML |
627 | If enabled, the access_ok function is linked |
628 | into L1 instruction memory. (less latency) | |
1394f032 BW |
629 | |
630 | config MEMSET_L1 | |
631 | bool "Locate memset function in L1 Memory" | |
632 | default y | |
633 | help | |
01dd2fbf ML |
634 | If enabled, the memset function is linked |
635 | into L1 instruction memory. (less latency) | |
1394f032 BW |
636 | |
637 | config MEMCPY_L1 | |
638 | bool "Locate memcpy function in L1 Memory" | |
639 | default y | |
640 | help | |
01dd2fbf ML |
641 | If enabled, the memcpy function is linked |
642 | into L1 instruction memory. (less latency) | |
1394f032 BW |
643 | |
644 | config SYS_BFIN_SPINLOCK_L1 | |
645 | bool "Locate sys_bfin_spinlock function in L1 Memory" | |
646 | default y | |
647 | help | |
01dd2fbf ML |
648 | If enabled, sys_bfin_spinlock function is linked |
649 | into L1 instruction memory. (less latency) | |
1394f032 BW |
650 | |
651 | config IP_CHECKSUM_L1 | |
652 | bool "Locate IP Checksum function in L1 Memory" | |
653 | default n | |
654 | help | |
01dd2fbf ML |
655 | If enabled, the IP Checksum function is linked |
656 | into L1 instruction memory. (less latency) | |
1394f032 BW |
657 | |
658 | config CACHELINE_ALIGNED_L1 | |
659 | bool "Locate cacheline_aligned data to L1 Data Memory" | |
157cc5aa MH |
660 | default y if !BF54x |
661 | default n if BF54x | |
1394f032 BW |
662 | depends on !BF531 |
663 | help | |
01dd2fbf ML |
664 | If enabled, cacheline_anligned data is linked |
665 | into L1 data memory. (less latency) | |
1394f032 BW |
666 | |
667 | config SYSCALL_TAB_L1 | |
668 | bool "Locate Syscall Table L1 Data Memory" | |
669 | default n | |
670 | depends on !BF531 | |
671 | help | |
01dd2fbf ML |
672 | If enabled, the Syscall LUT is linked |
673 | into L1 data memory. (less latency) | |
1394f032 BW |
674 | |
675 | config CPLB_SWITCH_TAB_L1 | |
676 | bool "Locate CPLB Switch Tables L1 Data Memory" | |
677 | default n | |
678 | depends on !BF531 | |
679 | help | |
01dd2fbf ML |
680 | If enabled, the CPLB Switch Tables are linked |
681 | into L1 data memory. (less latency) | |
1394f032 BW |
682 | |
683 | endmenu | |
684 | ||
685 | ||
686 | choice | |
687 | prompt "Kernel executes from" | |
688 | help | |
689 | Choose the memory type that the kernel will be running in. | |
690 | ||
691 | config RAMKERNEL | |
692 | bool "RAM" | |
693 | help | |
694 | The kernel will be resident in RAM when running. | |
695 | ||
696 | config ROMKERNEL | |
697 | bool "ROM" | |
698 | help | |
699 | The kernel will be resident in FLASH/ROM when running. | |
700 | ||
701 | endchoice | |
702 | ||
703 | source "mm/Kconfig" | |
704 | ||
db0fa206 BW |
705 | config LARGE_ALLOCS |
706 | bool "Allow allocating large blocks (> 1MB) of memory" | |
707 | help | |
708 | Allow the slab memory allocator to keep chains for very large | |
709 | memory sizes - upto 32MB. You may need this if your system has | |
710 | a lot of RAM, and you need to able to allocate very large | |
711 | contiguous chunks. If unsure, say N. | |
712 | ||
780431e3 MF |
713 | config BFIN_GPTIMERS |
714 | tristate "Enable Blackfin General Purpose Timers API" | |
715 | default n | |
716 | help | |
717 | Enable support for the General Purpose Timers API. If you | |
718 | are unsure, say N. | |
719 | ||
720 | To compile this driver as a module, choose M here: the module | |
721 | will be called gptimers.ko. | |
722 | ||
1394f032 BW |
723 | config BFIN_DMA_5XX |
724 | bool "Enable DMA Support" | |
59003145 | 725 | depends on (BF52x || BF53x || BF561 || BF54x) |
1394f032 BW |
726 | default y |
727 | help | |
728 | DMA driver for BF5xx. | |
729 | ||
730 | choice | |
731 | prompt "Uncached SDRAM region" | |
732 | default DMA_UNCACHED_1M | |
247537b9 | 733 | depends on BFIN_DMA_5XX |
1394f032 BW |
734 | config DMA_UNCACHED_2M |
735 | bool "Enable 2M DMA region" | |
736 | config DMA_UNCACHED_1M | |
737 | bool "Enable 1M DMA region" | |
738 | config DMA_UNCACHED_NONE | |
739 | bool "Disable DMA region" | |
740 | endchoice | |
741 | ||
742 | ||
743 | comment "Cache Support" | |
3bebca2d | 744 | config BFIN_ICACHE |
1394f032 | 745 | bool "Enable ICACHE" |
3bebca2d | 746 | config BFIN_DCACHE |
1394f032 | 747 | bool "Enable DCACHE" |
3bebca2d | 748 | config BFIN_DCACHE_BANKA |
1394f032 | 749 | bool "Enable only 16k BankA DCACHE - BankB is SRAM" |
3bebca2d | 750 | depends on BFIN_DCACHE && !BF531 |
1394f032 | 751 | default n |
3bebca2d RG |
752 | config BFIN_ICACHE_LOCK |
753 | bool "Enable Instruction Cache Locking" | |
1394f032 BW |
754 | |
755 | choice | |
756 | prompt "Policy" | |
3bebca2d RG |
757 | depends on BFIN_DCACHE |
758 | default BFIN_WB | |
759 | config BFIN_WB | |
1394f032 BW |
760 | bool "Write back" |
761 | help | |
762 | Write Back Policy: | |
763 | Cached data will be written back to SDRAM only when needed. | |
764 | This can give a nice increase in performance, but beware of | |
765 | broken drivers that do not properly invalidate/flush their | |
766 | cache. | |
767 | ||
768 | Write Through Policy: | |
769 | Cached data will always be written back to SDRAM when the | |
770 | cache is updated. This is a completely safe setting, but | |
771 | performance is worse than Write Back. | |
772 | ||
773 | If you are unsure of the options and you want to be safe, | |
774 | then go with Write Through. | |
775 | ||
3bebca2d | 776 | config BFIN_WT |
1394f032 BW |
777 | bool "Write through" |
778 | help | |
779 | Write Back Policy: | |
780 | Cached data will be written back to SDRAM only when needed. | |
781 | This can give a nice increase in performance, but beware of | |
782 | broken drivers that do not properly invalidate/flush their | |
783 | cache. | |
784 | ||
785 | Write Through Policy: | |
786 | Cached data will always be written back to SDRAM when the | |
787 | cache is updated. This is a completely safe setting, but | |
788 | performance is worse than Write Back. | |
789 | ||
790 | If you are unsure of the options and you want to be safe, | |
791 | then go with Write Through. | |
792 | ||
793 | endchoice | |
794 | ||
795 | config L1_MAX_PIECE | |
796 | int "Set the max L1 SRAM pieces" | |
797 | default 16 | |
798 | help | |
799 | Set the max memory pieces for the L1 SRAM allocation algorithm. | |
800 | Min value is 16. Max value is 1024. | |
801 | ||
1394f032 BW |
802 | comment "Asynchonous Memory Configuration" |
803 | ||
ddf416b2 | 804 | menu "EBIU_AMGCTL Global Control" |
1394f032 BW |
805 | config C_AMCKEN |
806 | bool "Enable CLKOUT" | |
807 | default y | |
808 | ||
809 | config C_CDPRIO | |
810 | bool "DMA has priority over core for ext. accesses" | |
9be343c5 | 811 | depends on !BF54x |
1394f032 BW |
812 | default n |
813 | ||
814 | config C_B0PEN | |
815 | depends on BF561 | |
816 | bool "Bank 0 16 bit packing enable" | |
817 | default y | |
818 | ||
819 | config C_B1PEN | |
820 | depends on BF561 | |
821 | bool "Bank 1 16 bit packing enable" | |
822 | default y | |
823 | ||
824 | config C_B2PEN | |
825 | depends on BF561 | |
826 | bool "Bank 2 16 bit packing enable" | |
827 | default y | |
828 | ||
829 | config C_B3PEN | |
830 | depends on BF561 | |
831 | bool "Bank 3 16 bit packing enable" | |
832 | default n | |
833 | ||
834 | choice | |
835 | prompt"Enable Asynchonous Memory Banks" | |
836 | default C_AMBEN_ALL | |
837 | ||
838 | config C_AMBEN | |
839 | bool "Disable All Banks" | |
840 | ||
841 | config C_AMBEN_B0 | |
842 | bool "Enable Bank 0" | |
843 | ||
844 | config C_AMBEN_B0_B1 | |
845 | bool "Enable Bank 0 & 1" | |
846 | ||
847 | config C_AMBEN_B0_B1_B2 | |
848 | bool "Enable Bank 0 & 1 & 2" | |
849 | ||
850 | config C_AMBEN_ALL | |
851 | bool "Enable All Banks" | |
852 | endchoice | |
853 | endmenu | |
854 | ||
855 | menu "EBIU_AMBCTL Control" | |
856 | config BANK_0 | |
857 | hex "Bank 0" | |
858 | default 0x7BB0 | |
859 | ||
860 | config BANK_1 | |
861 | hex "Bank 1" | |
862 | default 0x7BB0 | |
863 | ||
864 | config BANK_2 | |
865 | hex "Bank 2" | |
866 | default 0x7BB0 | |
867 | ||
868 | config BANK_3 | |
869 | hex "Bank 3" | |
870 | default 0x99B3 | |
871 | endmenu | |
872 | ||
873 | endmenu | |
874 | ||
875 | ############################################################################# | |
876 | menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)" | |
877 | ||
878 | config PCI | |
879 | bool "PCI support" | |
880 | help | |
881 | Support for PCI bus. | |
882 | ||
883 | source "drivers/pci/Kconfig" | |
884 | ||
885 | config HOTPLUG | |
886 | bool "Support for hot-pluggable device" | |
887 | help | |
888 | Say Y here if you want to plug devices into your computer while | |
889 | the system is running, and be able to use them quickly. In many | |
890 | cases, the devices can likewise be unplugged at any time too. | |
891 | ||
892 | One well known example of this is PCMCIA- or PC-cards, credit-card | |
893 | size devices such as network cards, modems or hard drives which are | |
894 | plugged into slots found on all modern laptop computers. Another | |
895 | example, used on modern desktops as well as laptops, is USB. | |
896 | ||
897 | Enable HOTPLUG and KMOD, and build a modular kernel. Get agent | |
898 | software (at <http://linux-hotplug.sourceforge.net/>) and install it. | |
899 | Then your kernel will automatically call out to a user mode "policy | |
900 | agent" (/sbin/hotplug) to load modules and set up software needed | |
901 | to use devices as you hotplug them. | |
902 | ||
903 | source "drivers/pcmcia/Kconfig" | |
904 | ||
905 | source "drivers/pci/hotplug/Kconfig" | |
906 | ||
907 | endmenu | |
908 | ||
909 | menu "Executable file formats" | |
910 | ||
911 | source "fs/Kconfig.binfmt" | |
912 | ||
913 | endmenu | |
914 | ||
915 | menu "Power management options" | |
916 | source "kernel/power/Kconfig" | |
917 | ||
918 | choice | |
919 | prompt "Select PM Wakeup Event Source" | |
920 | default PM_WAKEUP_GPIO_BY_SIC_IWR | |
921 | depends on PM | |
922 | help | |
923 | If you have a GPIO already configured as input with the corresponding PORTx_MASK | |
924 | bit set - "Specify Wakeup Event by SIC_IWR value" | |
925 | ||
926 | config PM_WAKEUP_GPIO_BY_SIC_IWR | |
927 | bool "Specify Wakeup Event by SIC_IWR value" | |
928 | config PM_WAKEUP_BY_GPIO | |
929 | bool "Cause Wakeup Event by GPIO" | |
930 | config PM_WAKEUP_GPIO_API | |
931 | bool "Configure Wakeup Event by PM GPIO API" | |
932 | ||
933 | endchoice | |
934 | ||
935 | config PM_WAKEUP_SIC_IWR | |
936 | hex "Wakeup Events (SIC_IWR)" | |
937 | depends on PM_WAKEUP_GPIO_BY_SIC_IWR | |
938 | default 0x80000000 if (BF537 || BF536 || BF534) | |
939 | default 0x100000 if (BF533 || BF532 || BF531) | |
940 | ||
941 | config PM_WAKEUP_GPIO_NUMBER | |
942 | int "Wakeup GPIO number" | |
943 | range 0 47 | |
944 | depends on PM_WAKEUP_BY_GPIO | |
945 | default 2 if BFIN537_STAMP | |
946 | ||
947 | choice | |
948 | prompt "GPIO Polarity" | |
949 | depends on PM_WAKEUP_BY_GPIO | |
950 | default PM_WAKEUP_GPIO_POLAR_H | |
951 | config PM_WAKEUP_GPIO_POLAR_H | |
952 | bool "Active High" | |
953 | config PM_WAKEUP_GPIO_POLAR_L | |
954 | bool "Active Low" | |
955 | config PM_WAKEUP_GPIO_POLAR_EDGE_F | |
956 | bool "Falling EDGE" | |
957 | config PM_WAKEUP_GPIO_POLAR_EDGE_R | |
958 | bool "Rising EDGE" | |
959 | config PM_WAKEUP_GPIO_POLAR_EDGE_B | |
960 | bool "Both EDGE" | |
961 | endchoice | |
962 | ||
963 | endmenu | |
964 | ||
24a07a12 | 965 | if (BF537 || BF533 || BF54x) |
1394f032 BW |
966 | |
967 | menu "CPU Frequency scaling" | |
968 | ||
969 | source "drivers/cpufreq/Kconfig" | |
970 | ||
971 | config CPU_FREQ | |
972 | bool | |
973 | default n | |
974 | help | |
975 | If you want to enable this option, you should select the | |
976 | DPMC driver from Character Devices. | |
977 | endmenu | |
978 | ||
979 | endif | |
980 | ||
981 | source "net/Kconfig" | |
982 | ||
983 | source "drivers/Kconfig" | |
984 | ||
985 | source "fs/Kconfig" | |
986 | ||
09cadedb | 987 | source "kernel/Kconfig.instrumentation" |
1394f032 BW |
988 | |
989 | menu "Kernel hacking" | |
990 | ||
991 | source "lib/Kconfig.debug" | |
992 | ||
993 | config DEBUG_HWERR | |
994 | bool "Hardware error interrupt debugging" | |
995 | depends on DEBUG_KERNEL | |
996 | help | |
997 | When enabled, the hardware error interrupt is never disabled, and | |
998 | will happen immediately when an error condition occurs. This comes | |
999 | at a slight cost in code size, but is necessary if you are getting | |
1000 | hardware error interrupts and need to know where they are coming | |
1001 | from. | |
1002 | ||
1003 | config DEBUG_ICACHE_CHECK | |
01dd2fbf | 1004 | bool "Check Instruction cache coherency" |
1394f032 BW |
1005 | depends on DEBUG_KERNEL |
1006 | depends on DEBUG_HWERR | |
1007 | help | |
01dd2fbf ML |
1008 | Say Y here if you are getting weird unexplained errors. This will |
1009 | ensure that icache is what SDRAM says it should be by doing a | |
1010 | byte wise comparison between SDRAM and instruction cache. This | |
1394f032 BW |
1011 | also relocates the irq_panic() function to L1 memory, (which is |
1012 | un-cached). | |
1013 | ||
1394f032 BW |
1014 | config DEBUG_HUNT_FOR_ZERO |
1015 | bool "Catch NULL pointer reads/writes" | |
1016 | default y | |
1017 | help | |
1018 | Say Y here to catch reads/writes to anywhere in the memory range | |
1019 | from 0x0000 - 0x0FFF (the first 4k) of memory. This is useful in | |
1020 | catching common programming errors such as NULL pointer dereferences. | |
1021 | ||
1022 | Misbehaving applications will be killed (generate a SEGV) while the | |
1023 | kernel will trigger a panic. | |
1024 | ||
1025 | Enabling this option will take up an extra entry in CPLB table. | |
1026 | Otherwise, there is no extra overhead. | |
1027 | ||
518039bc RG |
1028 | config DEBUG_BFIN_HWTRACE_ON |
1029 | bool "Turn on Blackfin's Hardware Trace" | |
1030 | default y | |
1031 | help | |
1032 | All Blackfins include a Trace Unit which stores a history of the last | |
1033 | 16 changes in program flow taken by the program sequencer. The history | |
1034 | allows the user to recreate the program sequencer’s recent path. This | |
1035 | can be handy when an application dies - we print out the execution | |
1036 | path of how it got to the offending instruction. | |
1037 | ||
1038 | By turning this off, you may save a tiny amount of power. | |
1039 | ||
1040 | choice | |
1041 | prompt "Omit loop Tracing" | |
1042 | default DEBUG_BFIN_HWTRACE_COMPRESSION_OFF | |
1043 | depends on DEBUG_BFIN_HWTRACE_ON | |
1044 | help | |
1045 | The trace buffer can be configured to omit recording of changes in | |
1046 | program flow that match either the last entry or one of the last | |
1047 | two entries. Omitting one of these entries from the record prevents | |
1048 | the trace buffer from overflowing because of any sort of loop (for, do | |
1049 | while, etc) in the program. | |
1050 | ||
1051 | Because zero-overhead Hardware loops are not recorded in the trace buffer, | |
1052 | this feature can be used to prevent trace overflow from loops that | |
1053 | are nested four deep. | |
1054 | ||
1055 | config DEBUG_BFIN_HWTRACE_COMPRESSION_OFF | |
1056 | bool "Trace all Loops" | |
1057 | help | |
1058 | The trace buffer records all changes of flow | |
1059 | ||
1060 | config DEBUG_BFIN_HWTRACE_COMPRESSION_ONE | |
1061 | bool "Compress single-level loops" | |
1062 | help | |
1063 | The trace buffer does not record single loops - helpful if trace | |
1064 | is spinning on a while or do loop. | |
1065 | ||
1066 | config DEBUG_BFIN_HWTRACE_COMPRESSION_TWO | |
1067 | bool "Compress two-level loops" | |
1068 | help | |
1069 | The trace buffer does not record loops two levels deep. Helpful if | |
1070 | the trace is spinning in a nested loop | |
1071 | ||
1072 | endchoice | |
1073 | ||
1074 | config DEBUG_BFIN_HWTRACE_COMPRESSION | |
1075 | int | |
1076 | depends on DEBUG_BFIN_HWTRACE_ON | |
1077 | default 0 if DEBUG_BFIN_HWTRACE_COMPRESSION_OFF | |
1078 | default 1 if DEBUG_BFIN_HWTRACE_COMPRESSION_ONE | |
1079 | default 2 if DEBUG_BFIN_HWTRACE_COMPRESSION_TWO | |
1080 | ||
1081 | ||
1082 | config DEBUG_BFIN_HWTRACE_EXPAND | |
1083 | bool "Expand Trace Buffer greater than 16 entries" | |
1084 | depends on DEBUG_BFIN_HWTRACE_ON | |
1085 | default n | |
1086 | help | |
1087 | By selecting this option, every time the 16 hardware entries in | |
1088 | the Blackfin's HW Trace buffer are full, the kernel will move them | |
1089 | into a software buffer, for dumping when there is an issue. This | |
1090 | has a great impact on performance, (an interrupt every 16 change of | |
1091 | flows) and should normally be turned off, except in those nasty | |
1092 | debugging sessions | |
1093 | ||
1094 | config DEBUG_BFIN_HWTRACE_EXPAND_LEN | |
1095 | int "Size of Trace buffer (in power of 2k)" | |
1096 | range 0 4 | |
1097 | depends on DEBUG_BFIN_HWTRACE_EXPAND | |
1098 | default 1 | |
1099 | help | |
1100 | This sets the size of the software buffer that the trace information | |
1101 | is kept in. | |
1102 | 0 for (2^0) 1k, or 256 entries, | |
1103 | 1 for (2^1) 2k, or 512 entries, | |
1104 | 2 for (2^2) 4k, or 1024 entries, | |
1105 | 3 for (2^3) 8k, or 2048 entries, | |
1106 | 4 for (2^4) 16k, or 4096 entries | |
1107 | ||
1394f032 BW |
1108 | config DEBUG_BFIN_NO_KERN_HWTRACE |
1109 | bool "Trace user apps (turn off hwtrace in kernel)" | |
518039bc | 1110 | depends on DEBUG_BFIN_HWTRACE_ON |
1394f032 BW |
1111 | default n |
1112 | help | |
1113 | Some pieces of the kernel contain a lot of flow changes which can | |
1114 | quickly fill up the hardware trace buffer. When debugging crashes, | |
1115 | the hardware trace may indicate that the problem lies in kernel | |
1116 | space when in reality an application is buggy. | |
1117 | ||
1118 | Say Y here to disable hardware tracing in some known "jumpy" pieces | |
1119 | of code so that the trace buffer will extend further back. | |
1120 | ||
0ae53640 RG |
1121 | config EARLY_PRINTK |
1122 | bool "Early printk" | |
1123 | default n | |
1124 | help | |
1125 | This option enables special console drivers which allow the kernel | |
1126 | to print messages very early in the bootup process. | |
1127 | ||
1128 | This is useful for kernel debugging when your machine crashes very | |
1129 | early before the console code is initialized. After enabling this | |
1130 | feature, you must add "earlyprintk=serial,uart0,57600" to the | |
1131 | command line (bootargs). It is safe to say Y here in all cases, as | |
1132 | all of this lives in the init section and is thrown away after the | |
1133 | kernel boots completely. | |
1134 | ||
1394f032 BW |
1135 | config DUAL_CORE_TEST_MODULE |
1136 | tristate "Dual Core Test Module" | |
1137 | depends on (BF561) | |
1138 | default n | |
1139 | help | |
1140 | Say Y here to build-in dual core test module for dual core test. | |
1141 | ||
1142 | config CPLB_INFO | |
1143 | bool "Display the CPLB information" | |
1144 | help | |
1145 | Display the CPLB information. | |
1146 | ||
1147 | config ACCESS_CHECK | |
1148 | bool "Check the user pointer address" | |
1149 | default y | |
1150 | help | |
1151 | Usually the pointer transfer from user space is checked to see if its | |
1152 | address is in the kernel space. | |
1153 | ||
1154 | Say N here to disable that check to improve the performance. | |
1155 | ||
1156 | endmenu | |
1157 | ||
1158 | source "security/Kconfig" | |
1159 | ||
1160 | source "crypto/Kconfig" | |
1161 | ||
1162 | source "lib/Kconfig" |