1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
|
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
mainmenu "uClinux/Blackfin (w/o MMU) Kernel Configuration"
config MMU
bool
default n
config FPU
bool
default n
config RWSEM_GENERIC_SPINLOCK
bool
default y
config RWSEM_XCHGADD_ALGORITHM
bool
default n
config BLACKFIN
bool
default y
config ZONE_DMA
bool
default y
config BFIN
bool
default y
config SEMAPHORE_SLEEPERS
bool
default y
config GENERIC_FIND_NEXT_BIT
bool
default y
config GENERIC_HWEIGHT
bool
default y
config GENERIC_HARDIRQS
bool
default y
config GENERIC_IRQ_PROBE
bool
default y
config GENERIC_TIME
bool
default n
config GENERIC_GPIO
bool
default y
config FORCE_MAX_ZONEORDER
int
default "14"
config GENERIC_CALIBRATE_DELAY
bool
default y
config IRQCHIP_DEMUX_GPIO
bool
depends on (BF53x || BF561 || BF54x)
default y
source "init/Kconfig"
source "kernel/Kconfig.preempt"
menu "Blackfin Processor Options"
comment "Processor and Board Settings"
choice
prompt "CPU"
default BF533
config BF531
bool "BF531"
help
BF531 Processor Support.
config BF532
bool "BF532"
help
BF532 Processor Support.
config BF533
bool "BF533"
help
BF533 Processor Support.
config BF534
bool "BF534"
help
BF534 Processor Support.
config BF536
bool "BF536"
help
BF536 Processor Support.
config BF537
bool "BF537"
help
BF537 Processor Support.
config BF542
bool "BF542"
help
BF542 Processor Support.
config BF544
bool "BF544"
help
BF544 Processor Support.
config BF548
bool "BF548"
help
BF548 Processor Support.
config BF549
bool "BF549"
help
BF549 Processor Support.
config BF561
bool "BF561"
help
Not Supported Yet - Work in progress - BF561 Processor Support.
endchoice
choice
prompt "Silicon Rev"
default BF_REV_0_2 if BF537
default BF_REV_0_3 if BF533
default BF_REV_0_0 if BF549
config BF_REV_0_0
bool "0.0"
depends on (BF549)
config BF_REV_0_2
bool "0.2"
depends on (BF537 || BF536 || BF534)
config BF_REV_0_3
bool "0.3"
depends on (BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531)
config BF_REV_0_4
bool "0.4"
depends on (BF561 || BF533 || BF532 || BF531)
config BF_REV_0_5
bool "0.5"
depends on (BF561 || BF533 || BF532 || BF531)
config BF_REV_ANY
bool "any"
config BF_REV_NONE
bool "none"
endchoice
config BF53x
bool
depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
default y
config BF54x
bool
depends on (BF542 || BF544 || BF548 || BF549)
default y
config BFIN_DUAL_CORE
bool
depends on (BF561)
default y
config BFIN_SINGLE_CORE
bool
depends on !BFIN_DUAL_CORE
default y
choice
prompt "System type"
default BFIN533_STAMP
help
Do NOT change the board here. Please use the top level
configuration to ensure that all the other settings are
correct.
config BFIN533_EZKIT
bool "BF533-EZKIT"
depends on (BF533 || BF532 || BF531)
help
BF533-EZKIT-LITE board Support.
config BFIN533_STAMP
bool "BF533-STAMP"
depends on (BF533 || BF532 || BF531)
help
BF533-STAMP board Support.
config BFIN537_STAMP
bool "BF537-STAMP"
depends on (BF537 || BF536 || BF534)
help
BF537-STAMP board Support.
config BFIN533_BLUETECHNIX_CM
bool "Bluetechnix CM-BF533"
depends on (BF533)
help
CM-BF533 support for EVAL- and DEV-Board.
config BFIN537_BLUETECHNIX_CM
bool "Bluetechnix CM-BF537"
depends on (BF537)
help
CM-BF537 support for EVAL- and DEV-Board.
config BFIN548_EZKIT
bool "BF548-EZKIT"
depends on (BF548 || BF549)
help
BFIN548-EZKIT board Support.
config BFIN561_BLUETECHNIX_CM
bool "Bluetechnix CM-BF561"
depends on (BF561)
help
CM-BF561 support for EVAL- and DEV-Board.
config BFIN561_EZKIT
bool "BF561-EZKIT"
depends on (BF561)
help
BF561-EZKIT-LITE board Support.
config BFIN561_TEPLA
bool "BF561-TEPLA"
depends on (BF561)
help
BF561-TEPLA board Support.
config PNAV10
bool "PNAV 1.0 board"
depends on (BF537)
help
PNAV 1.0 board Support.
config GENERIC_BOARD
bool "Custom"
depends on (BF537 || BF536 \
|| BF534 || BF561 || BF535 || BF533 || BF532 || BF531)
help
GENERIC or Custom board Support.
endchoice
config MEM_GENERIC_BOARD
bool
depends on GENERIC_BOARD
default y
config MEM_MT48LC64M4A2FB_7E
bool
depends on (BFIN533_STAMP)
default y
config MEM_MT48LC16M16A2TG_75
bool
depends on (BFIN533_EZKIT || BFIN561_EZKIT \
|| BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM)
default y
config MEM_MT48LC32M8A2_75
bool
depends on (BFIN537_STAMP || PNAV10)
default y
config MEM_MT48LC8M32B2B5_7
bool
depends on (BFIN561_BLUETECHNIX_CM)
default y
config BFIN_SHARED_FLASH_ENET
bool
depends on (BFIN533_STAMP)
default y
source "arch/blackfin/mach-bf533/Kconfig"
source "arch/blackfin/mach-bf561/Kconfig"
source "arch/blackfin/mach-bf537/Kconfig"
source "arch/blackfin/mach-bf548/Kconfig"
menu "Board customizations"
config CMDLINE_BOOL
bool "Default bootloader kernel arguments"
config CMDLINE
string "Initial kernel command string"
depends on CMDLINE_BOOL
default "console=ttyBF0,57600"
help
If you don't have a boot loader capable of passing a command line string
to the kernel, you may specify one here. As a minimum, you should specify
the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
comment "Board Setup"
config CLKIN_HZ
int "Crystal Frequency in Hz"
default "11059200" if BFIN533_STAMP
default "27000000" if BFIN533_EZKIT
default "25000000" if BFIN537_STAMP
default "30000000" if BFIN561_EZKIT
default "24576000" if PNAV10
help
The frequency of CLKIN crystal oscillator on the board in Hz.
config MEM_SIZE
int "SDRAM Memory Size in MBytes"
default 32 if BFIN533_EZKIT
default 64 if BFIN537_STAMP
default 64 if BFIN561_EZKIT
default 128 if BFIN533_STAMP
default 64 if PNAV10
config MEM_ADD_WIDTH
int "SDRAM Memory Address Width"
default 9 if BFIN533_EZKIT
default 9 if BFIN561_EZKIT
default 10 if BFIN537_STAMP
default 11 if BFIN533_STAMP
default 10 if PNAV10
config ENET_FLASH_PIN
int "PF port/pin used for flash and ethernet sharing"
depends on (BFIN533_STAMP)
default 0
help
PF port/pin used for flash and ethernet sharing to allow other PF
pins to be used on other platforms without having to touch common
code.
For example: PF0 --> 0,PF1 --> 1,PF2 --> 2, etc.
config BOOT_LOAD
hex "Kernel load address for booting"
default "0x1000"
help
This option allows you to set the load address of the kernel.
This can be useful if you are on a board which has a small amount
of memory or you wish to reserve some memory at the beginning of
the address space.
Note that you generally want to keep this value at or above 4k
(0x1000) as this will allow the kernel to capture NULL pointer
references.
comment "LED Status Indicators"
depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
config BFIN_ALIVE_LED
bool "Enable Board Alive"
depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
default n
help
Blink the LEDs you select when the kernel is running. Helps detect
a hung kernel.
config BFIN_ALIVE_LED_NUM
int "LED"
depends on BFIN_ALIVE_LED
range 1 3 if BFIN533_STAMP
default "3" if BFIN533_STAMP
help
Select the LED (marked on the board) for you to blink.
config BFIN_IDLE_LED
bool "Enable System Load/Idle LED"
depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
default n
help
Blinks the LED you select when to determine kernel load.
config BFIN_IDLE_LED_NUM
int "LED"
depends on BFIN_IDLE_LED
range 1 3 if BFIN533_STAMP
default "2" if BFIN533_STAMP
help
Select the LED (marked on the board) for you to blink.
#
# Sorry - but you need to put the hex address here -
#
# Flag Data register
config BFIN_ALIVE_LED_PORT
hex
default 0xFFC00700 if (BFIN533_STAMP)
# Peripheral Flag Direction Register
config BFIN_ALIVE_LED_DPORT
hex
default 0xFFC00730 if (BFIN533_STAMP)
config BFIN_ALIVE_LED_PIN
hex
default 0x04 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 1)
default 0x08 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 2)
default 0x10 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 3)
config BFIN_IDLE_LED_PORT
hex
default 0xFFC00700 if (BFIN533_STAMP)
# Peripheral Flag Direction Register
config BFIN_IDLE_LED_DPORT
hex
default 0xFFC00730 if (BFIN533_STAMP)
config BFIN_IDLE_LED_PIN
hex
default 0x04 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 1)
default 0x08 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 2)
default 0x10 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 3)
endmenu
menu "Blackfin Kernel Optimizations"
comment "Timer Tick"
source kernel/Kconfig.hz
comment "Memory Optimizations"
config I_ENTRY_L1
bool "Locate interrupt entry code in L1 Memory"
default y
help
If enabled interrupt entry code (STORE/RESTORE CONTEXT) is linked
into L1 instruction memory.(less latency)
config EXCPT_IRQ_SYSC_L1
bool "Locate entire ASM lowlevel excepetion / interrupt - Syscall and CPLB handler code in L1 Memory"
default y
help
If enabled entire ASM lowlevel exception and interrupt entry code (STORE/RESTORE CONTEXT) is linked
into L1 instruction memory.(less latency)
config DO_IRQ_L1
bool "Locate frequently called do_irq dispatcher function in L1 Memory"
default y
help
If enabled frequently called do_irq dispatcher function is linked
into L1 instruction memory.(less latency)
config CORE_TIMER_IRQ_L1
bool "Locate frequently called timer_interrupt() function in L1 Memory"
default y
help
If enabled frequently called timer_interrupt() function is linked
into L1 instruction memory.(less latency)
config IDLE_L1
bool "Locate frequently idle function in L1 Memory"
default y
help
If enabled frequently called idle function is linked
into L1 instruction memory.(less latency)
config SCHEDULE_L1
bool "Locate kernel schedule function in L1 Memory"
default y
help
If enabled frequently called kernel schedule is linked
into L1 instruction memory.(less latency)
config ARITHMETIC_OPS_L1
bool "Locate kernel owned arithmetic functions in L1 Memory"
default y
help
If enabled arithmetic functions are linked
into L1 instruction memory.(less latency)
config ACCESS_OK_L1
bool "Locate access_ok function in L1 Memory"
default y
help
If enabled access_ok function is linked
into L1 instruction memory.(less latency)
config MEMSET_L1
bool "Locate memset function in L1 Memory"
default y
help
If enabled memset function is linked
into L1 instruction memory.(less latency)
config MEMCPY_L1
bool "Locate memcpy function in L1 Memory"
default y
help
If enabled memcpy function is linked
into L1 instruction memory.(less latency)
config SYS_BFIN_SPINLOCK_L1
bool "Locate sys_bfin_spinlock function in L1 Memory"
default y
help
If enabled sys_bfin_spinlock function is linked
into L1 instruction memory.(less latency)
config IP_CHECKSUM_L1
bool "Locate IP Checksum function in L1 Memory"
default n
help
If enabled IP Checksum function is linked
into L1 instruction memory.(less latency)
config CACHELINE_ALIGNED_L1
bool "Locate cacheline_aligned data to L1 Data Memory"
default y if !BF54x
default n if BF54x
depends on !BF531
help
If enabled cacheline_anligned data is linked
into L1 data memory.(less latency)
config SYSCALL_TAB_L1
bool "Locate Syscall Table L1 Data Memory"
default n
depends on !BF531
help
If enabled the Syscall LUT is linked
into L1 data memory.(less latency)
config CPLB_SWITCH_TAB_L1
bool "Locate CPLB Switch Tables L1 Data Memory"
default n
depends on !BF531
help
If enabled the CPLB Switch Tables are linked
into L1 data memory.(less latency)
endmenu
choice
prompt "Kernel executes from"
help
Choose the memory type that the kernel will be running in.
config RAMKERNEL
bool "RAM"
help
The kernel will be resident in RAM when running.
config ROMKERNEL
bool "ROM"
help
The kernel will be resident in FLASH/ROM when running.
endchoice
source "mm/Kconfig"
config LARGE_ALLOCS
bool "Allow allocating large blocks (> 1MB) of memory"
help
Allow the slab memory allocator to keep chains for very large
memory sizes - upto 32MB. You may need this if your system has
a lot of RAM, and you need to able to allocate very large
contiguous chunks. If unsure, say N.
config BFIN_DMA_5XX
bool "Enable DMA Support"
depends on (BF533 || BF532 || BF531 || BF537 || BF536 || BF534 || BF561 || BF54x)
default y
help
DMA driver for BF5xx.
choice
prompt "Uncached SDRAM region"
default DMA_UNCACHED_1M
depends BFIN_DMA_5XX
config DMA_UNCACHED_2M
bool "Enable 2M DMA region"
config DMA_UNCACHED_1M
bool "Enable 1M DMA region"
config DMA_UNCACHED_NONE
bool "Disable DMA region"
endchoice
comment "Cache Support"
config BLKFIN_CACHE
bool "Enable ICACHE"
config BLKFIN_DCACHE
bool "Enable DCACHE"
config BLKFIN_DCACHE_BANKA
bool "Enable only 16k BankA DCACHE - BankB is SRAM"
depends on BLKFIN_DCACHE && !BF531
default n
config BLKFIN_CACHE_LOCK
bool "Enable Cache Locking"
choice
prompt "Policy"
depends on BLKFIN_DCACHE
default BLKFIN_WB
config BLKFIN_WB
bool "Write back"
help
Write Back Policy:
Cached data will be written back to SDRAM only when needed.
This can give a nice increase in performance, but beware of
broken drivers that do not properly invalidate/flush their
cache.
Write Through Policy:
Cached data will always be written back to SDRAM when the
cache is updated. This is a completely safe setting, but
performance is worse than Write Back.
If you are unsure of the options and you want to be safe,
then go with Write Through.
config BLKFIN_WT
bool "Write through"
help
Write Back Policy:
Cached data will be written back to SDRAM only when needed.
This can give a nice increase in performance, but beware of
broken drivers that do not properly invalidate/flush their
cache.
Write Through Policy:
Cached data will always be written back to SDRAM when the
cache is updated. This is a completely safe setting, but
performance is worse than Write Back.
If you are unsure of the options and you want to be safe,
then go with Write Through.
endchoice
config L1_MAX_PIECE
int "Set the max L1 SRAM pieces"
default 16
help
Set the max memory pieces for the L1 SRAM allocation algorithm.
Min value is 16. Max value is 1024.
menu "Clock Settings"
config BFIN_KERNEL_CLOCK
bool "Re-program Clocks while Kernel boots?"
default n
help
This option decides if kernel clocks are re-programed from the
bootloader settings. If the clocks are not set, the SDRAM settings
are also not changed, and the Bootloader does 100% of the hardware
configuration.
config VCO_MULT
int "VCO Multiplier"
depends on BFIN_KERNEL_CLOCK
default "22" if BFIN533_EZKIT
default "45" if BFIN533_STAMP
default "20" if BFIN537_STAMP
default "22" if BFIN533_BLUETECHNIX_CM
default "20" if BFIN537_BLUETECHNIX_CM
default "20" if BFIN561_BLUETECHNIX_CM
default "20" if BFIN561_EZKIT
config CCLK_DIV
int "Core Clock Divider"
depends on BFIN_KERNEL_CLOCK
default 1 if BFIN533_EZKIT
default 1 if BFIN533_STAMP
default 1 if BFIN537_STAMP
default 1 if BFIN533_BLUETECHNIX_CM
default 1 if BFIN537_BLUETECHNIX_CM
default 1 if BFIN561_BLUETECHNIX_CM
default 1 if BFIN561_EZKIT
config SCLK_DIV
int "System Clock Divider"
depends on BFIN_KERNEL_CLOCK
default 5 if BFIN533_EZKIT
default 5 if BFIN533_STAMP
default 4 if BFIN537_STAMP
default 5 if BFIN533_BLUETECHNIX_CM
default 4 if BFIN537_BLUETECHNIX_CM
default 4 if BFIN561_BLUETECHNIX_CM
default 5 if BFIN561_EZKIT
config CLKIN_HALF
bool "Half ClockIn"
depends on BFIN_KERNEL_CLOCK
default n
config PLL_BYPASS
bool "Bypass PLL"
depends on BFIN_KERNEL_CLOCK
default n
endmenu
comment "Asynchonous Memory Configuration"
menu "EBIU_AMBCTL Global Control"
config C_AMCKEN
bool "Enable CLKOUT"
default y
config C_CDPRIO
bool "DMA has priority over core for ext. accesses"
depends on !BF54x
default n
config C_B0PEN
depends on BF561
bool "Bank 0 16 bit packing enable"
default y
config C_B1PEN
depends on BF561
bool "Bank 1 16 bit packing enable"
default y
config C_B2PEN
depends on BF561
bool "Bank 2 16 bit packing enable"
default y
config C_B3PEN
depends on BF561
bool "Bank 3 16 bit packing enable"
default n
choice
prompt"Enable Asynchonous Memory Banks"
default C_AMBEN_ALL
config C_AMBEN
bool "Disable All Banks"
config C_AMBEN_B0
bool "Enable Bank 0"
config C_AMBEN_B0_B1
bool "Enable Bank 0 & 1"
config C_AMBEN_B0_B1_B2
bool "Enable Bank 0 & 1 & 2"
config C_AMBEN_ALL
bool "Enable All Banks"
endchoice
endmenu
menu "EBIU_AMBCTL Control"
config BANK_0
hex "Bank 0"
default 0x7BB0
config BANK_1
hex "Bank 1"
default 0x7BB0
config BANK_2
hex "Bank 2"
default 0x7BB0
config BANK_3
hex "Bank 3"
default 0x99B3
endmenu
endmenu
#############################################################################
menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
config PCI
bool "PCI support"
help
Support for PCI bus.
source "drivers/pci/Kconfig"
config HOTPLUG
bool "Support for hot-pluggable device"
help
Say Y here if you want to plug devices into your computer while
the system is running, and be able to use them quickly. In many
cases, the devices can likewise be unplugged at any time too.
One well known example of this is PCMCIA- or PC-cards, credit-card
size devices such as network cards, modems or hard drives which are
plugged into slots found on all modern laptop computers. Another
example, used on modern desktops as well as laptops, is USB.
Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
software (at <http://linux-hotplug.sourceforge.net/>) and install it.
Then your kernel will automatically call out to a user mode "policy
agent" (/sbin/hotplug) to load modules and set up software needed
to use devices as you hotplug them.
source "drivers/pcmcia/Kconfig"
source "drivers/pci/hotplug/Kconfig"
endmenu
menu "Executable file formats"
source "fs/Kconfig.binfmt"
endmenu
menu "Power management options"
source "kernel/power/Kconfig"
choice
prompt "Select PM Wakeup Event Source"
default PM_WAKEUP_GPIO_BY_SIC_IWR
depends on PM
help
If you have a GPIO already configured as input with the corresponding PORTx_MASK
bit set - "Specify Wakeup Event by SIC_IWR value"
config PM_WAKEUP_GPIO_BY_SIC_IWR
bool "Specify Wakeup Event by SIC_IWR value"
config PM_WAKEUP_BY_GPIO
bool "Cause Wakeup Event by GPIO"
config PM_WAKEUP_GPIO_API
bool "Configure Wakeup Event by PM GPIO API"
endchoice
config PM_WAKEUP_SIC_IWR
hex "Wakeup Events (SIC_IWR)"
depends on PM_WAKEUP_GPIO_BY_SIC_IWR
default 0x80000000 if (BF537 || BF536 || BF534)
default 0x100000 if (BF533 || BF532 || BF531)
config PM_WAKEUP_GPIO_NUMBER
int "Wakeup GPIO number"
range 0 47
depends on PM_WAKEUP_BY_GPIO
default 2 if BFIN537_STAMP
choice
prompt "GPIO Polarity"
depends on PM_WAKEUP_BY_GPIO
default PM_WAKEUP_GPIO_POLAR_H
config PM_WAKEUP_GPIO_POLAR_H
bool "Active High"
config PM_WAKEUP_GPIO_POLAR_L
bool "Active Low"
config PM_WAKEUP_GPIO_POLAR_EDGE_F
bool "Falling EDGE"
config PM_WAKEUP_GPIO_POLAR_EDGE_R
bool "Rising EDGE"
config PM_WAKEUP_GPIO_POLAR_EDGE_B
bool "Both EDGE"
endchoice
endmenu
if (BF537 || BF533 || BF54x)
menu "CPU Frequency scaling"
source "drivers/cpufreq/Kconfig"
config CPU_FREQ
bool
default n
help
If you want to enable this option, you should select the
DPMC driver from Character Devices.
endmenu
endif
source "net/Kconfig"
source "drivers/Kconfig"
source "fs/Kconfig"
source "arch/blackfin/oprofile/Kconfig"
menu "Kernel hacking"
source "lib/Kconfig.debug"
config DEBUG_HWERR
bool "Hardware error interrupt debugging"
depends on DEBUG_KERNEL
help
When enabled, the hardware error interrupt is never disabled, and
will happen immediately when an error condition occurs. This comes
at a slight cost in code size, but is necessary if you are getting
hardware error interrupts and need to know where they are coming
from.
config DEBUG_ICACHE_CHECK
bool "Check Instruction cache coherancy"
depends on DEBUG_KERNEL
depends on DEBUG_HWERR
help
Say Y here if you are getting wierd unexplained errors. This will
ensure that icache is what SDRAM says it should be, by doing a
byte wise comparision between SDRAM and instruction cache. This
also relocates the irq_panic() function to L1 memory, (which is
un-cached).
config DEBUG_KERNEL_START
bool "Debug Kernel Startup"
depends on DEBUG_KERNEL
help
Say Y here to put in an mini-execption handler before the kernel
replaces the bootloader exception handler. This will stop kernels
from dieing at startup with no visible error messages.
config DEBUG_SERIAL_EARLY_INIT
bool "Initialize serial driver early"
default n
depends on SERIAL_BFIN
help
Say Y here if you want to get kernel output early when kernel
crashes before the normal console initialization. If this option
is enable, console output will always go to the ttyBF0, no matter
what kernel boot paramters you set.
config DEBUG_HUNT_FOR_ZERO
bool "Catch NULL pointer reads/writes"
default y
help
Say Y here to catch reads/writes to anywhere in the memory range
from 0x0000 - 0x0FFF (the first 4k) of memory. This is useful in
catching common programming errors such as NULL pointer dereferences.
Misbehaving applications will be killed (generate a SEGV) while the
kernel will trigger a panic.
Enabling this option will take up an extra entry in CPLB table.
Otherwise, there is no extra overhead.
config DEBUG_BFIN_NO_KERN_HWTRACE
bool "Trace user apps (turn off hwtrace in kernel)"
default n
help
Some pieces of the kernel contain a lot of flow changes which can
quickly fill up the hardware trace buffer. When debugging crashes,
the hardware trace may indicate that the problem lies in kernel
space when in reality an application is buggy.
Say Y here to disable hardware tracing in some known "jumpy" pieces
of code so that the trace buffer will extend further back.
config DUAL_CORE_TEST_MODULE
tristate "Dual Core Test Module"
depends on (BF561)
default n
help
Say Y here to build-in dual core test module for dual core test.
config CPLB_INFO
bool "Display the CPLB information"
help
Display the CPLB information.
config ACCESS_CHECK
bool "Check the user pointer address"
default y
help
Usually the pointer transfer from user space is checked to see if its
address is in the kernel space.
Say N here to disable that check to improve the performance.
endmenu
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
|