Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
[deliverable/linux.git] / arch / sh / Kconfig
1 #
2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
4 #
5
6 mainmenu "Linux/SuperH Kernel Configuration"
7
8 config SUPERH
9 bool
10 default y
11 select EMBEDDED
12 help
13 The SuperH is a RISC processor targeted for use in embedded systems
14 and consumer electronics; it was also used in the Sega Dreamcast
15 gaming console. The SuperH port has a home page at
16 <http://www.linux-sh.org/>.
17
18 config RWSEM_GENERIC_SPINLOCK
19 bool
20 default y
21
22 config RWSEM_XCHGADD_ALGORITHM
23 bool
24
25 config GENERIC_BUG
26 def_bool y
27 depends on BUG
28
29 config GENERIC_FIND_NEXT_BIT
30 bool
31 default y
32
33 config GENERIC_HWEIGHT
34 bool
35 default y
36
37 config GENERIC_HARDIRQS
38 bool
39 default y
40
41 config GENERIC_IRQ_PROBE
42 bool
43 default y
44
45 config GENERIC_CALIBRATE_DELAY
46 bool
47 default y
48
49 config GENERIC_IOMAP
50 bool
51
52 config GENERIC_TIME
53 def_bool n
54
55 config GENERIC_CLOCKEVENTS
56 def_bool n
57
58 config SYS_SUPPORTS_PM
59 bool
60
61 config SYS_SUPPORTS_APM_EMULATION
62 bool
63 select SYS_SUPPORTS_PM
64
65 config SYS_SUPPORTS_SMP
66 bool
67
68 config SYS_SUPPORTS_NUMA
69 bool
70
71 config SYS_SUPPORTS_PCI
72 bool
73
74 config ARCH_MAY_HAVE_PC_FDC
75 bool
76
77 config STACKTRACE_SUPPORT
78 bool
79 default y
80
81 config LOCKDEP_SUPPORT
82 bool
83 default y
84
85 config ARCH_HAS_ILOG2_U32
86 bool
87 default n
88
89 config ARCH_HAS_ILOG2_U64
90 bool
91 default n
92
93 source "init/Kconfig"
94
95 menu "System type"
96
97 source "arch/sh/mm/Kconfig"
98
99 menu "Processor features"
100
101 choice
102 prompt "Endianess selection"
103 default CPU_LITTLE_ENDIAN
104 help
105 Some SuperH machines can be configured for either little or big
106 endian byte order. These modes require different kernels.
107
108 config CPU_LITTLE_ENDIAN
109 bool "Little Endian"
110
111 config CPU_BIG_ENDIAN
112 bool "Big Endian"
113
114 endchoice
115
116 config SH_FPU
117 bool "FPU support"
118 depends on CPU_SH4
119 default y
120 help
121 Selecting this option will enable support for SH processors that
122 have FPU units (ie, SH77xx).
123
124 This option must be set in order to enable the FPU.
125
126 config SH_FPU_EMU
127 bool "FPU emulation support"
128 depends on !SH_FPU && EXPERIMENTAL
129 default n
130 help
131 Selecting this option will enable support for software FPU emulation.
132 Most SH-3 users will want to say Y here, whereas most SH-4 users will
133 want to say N.
134
135 config SH_DSP
136 bool "DSP support"
137 default y if SH4AL_DSP || !CPU_SH4
138 default n
139 help
140 Selecting this option will enable support for SH processors that
141 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
142
143 This option must be set in order to enable the DSP.
144
145 config SH_ADC
146 bool "ADC support"
147 depends on CPU_SH3
148 default y
149 help
150 Selecting this option will allow the Linux kernel to use SH3 on-chip
151 ADC module.
152
153 If unsure, say N.
154
155 config SH_STORE_QUEUES
156 bool "Support for Store Queues"
157 depends on CPU_SH4
158 help
159 Selecting this option will enable an in-kernel API for manipulating
160 the store queues integrated in the SH-4 processors.
161
162 config SPECULATIVE_EXECUTION
163 bool "Speculative subroutine return"
164 depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
165 help
166 This enables support for a speculative instruction fetch for
167 subroutine return. There are various pitfalls associated with
168 this, as outlined in the SH7780 hardware manual.
169
170 If unsure, say N.
171
172 config CPU_HAS_INTEVT
173 bool
174
175 config CPU_HAS_PINT_IRQ
176 bool
177
178 config CPU_HAS_MASKREG_IRQ
179 bool
180
181 config CPU_HAS_INTC2_IRQ
182 bool
183
184 config CPU_HAS_IPR_IRQ
185 bool
186
187 config CPU_HAS_SR_RB
188 bool "CPU has SR.RB"
189 depends on CPU_SH3 || CPU_SH4
190 default y
191 help
192 This will enable the use of SR.RB register bank usage. Processors
193 that are lacking this bit must have another method in place for
194 accomplishing what is taken care of by the banked registers.
195
196 See <file:Documentation/sh/register-banks.txt> for further
197 information on SR.RB and register banking in the kernel in general.
198
199 config CPU_HAS_PTEA
200 bool
201
202 endmenu
203
204 menu "Board support"
205
206 config SOLUTION_ENGINE
207 bool
208
209 config SH_SOLUTION_ENGINE
210 bool "SolutionEngine"
211 select SOLUTION_ENGINE
212 depends on CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7750
213 help
214 Select SolutionEngine if configuring for a Hitachi SH7709
215 or SH7750 evaluation board.
216
217 config SH_7206_SOLUTION_ENGINE
218 bool "SolutionEngine7206"
219 select SOLUTION_ENGINE
220 depends on CPU_SUBTYPE_SH7206
221 help
222 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
223 evaluation board.
224
225 config SH_7619_SOLUTION_ENGINE
226 bool "SolutionEngine7619"
227 select SOLUTION_ENGINE
228 depends on CPU_SUBTYPE_SH7619
229 help
230 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
231 evaluation board.
232
233 config SH_7722_SOLUTION_ENGINE
234 bool "SolutionEngine7722"
235 select SOLUTION_ENGINE
236 depends on CPU_SUBTYPE_SH7722
237 help
238 Select 7722 SolutionEngine if configuring for a Hitachi SH772
239 evaluation board.
240
241 config SH_7751_SOLUTION_ENGINE
242 bool "SolutionEngine7751"
243 select SOLUTION_ENGINE
244 depends on CPU_SUBTYPE_SH7751
245 help
246 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
247 evaluation board.
248
249 config SH_7780_SOLUTION_ENGINE
250 bool "SolutionEngine7780"
251 select SOLUTION_ENGINE
252 select SYS_SUPPORTS_PCI
253 depends on CPU_SUBTYPE_SH7780
254 help
255 Select 7780 SolutionEngine if configuring for a Renesas SH7780
256 evaluation board.
257
258 config SH_7300_SOLUTION_ENGINE
259 bool "SolutionEngine7300"
260 select SOLUTION_ENGINE
261 depends on CPU_SUBTYPE_SH7300
262 help
263 Select 7300 SolutionEngine if configuring for a Hitachi
264 SH7300(SH-Mobile V) evaluation board.
265
266 config SH_7343_SOLUTION_ENGINE
267 bool "SolutionEngine7343"
268 select SOLUTION_ENGINE
269 depends on CPU_SUBTYPE_SH7343
270 help
271 Select 7343 SolutionEngine if configuring for a Hitachi
272 SH7343 (SH-Mobile 3AS) evaluation board.
273
274 config SH_73180_SOLUTION_ENGINE
275 bool "SolutionEngine73180"
276 select SOLUTION_ENGINE
277 depends on CPU_SUBTYPE_SH73180
278 help
279 Select 73180 SolutionEngine if configuring for a Hitachi
280 SH73180(SH-Mobile 3) evaluation board.
281
282 config SH_7751_SYSTEMH
283 bool "SystemH7751R"
284 depends on CPU_SUBTYPE_SH7751R
285 help
286 Select SystemH if you are configuring for a Renesas SystemH
287 7751R evaluation board.
288
289 config SH_HP6XX
290 bool "HP6XX"
291 select SYS_SUPPORTS_APM_EMULATION
292 select HD6446X_SERIES
293 depends on CPU_SUBTYPE_SH7709
294 help
295 Select HP6XX if configuring for a HP jornada HP6xx.
296 More information (hardware only) at
297 <http://www.hp.com/jornada/>.
298
299 config SH_DREAMCAST
300 bool "Dreamcast"
301 select SYS_SUPPORTS_PCI
302 depends on CPU_SUBTYPE_SH7091
303 help
304 Select Dreamcast if configuring for a SEGA Dreamcast.
305 More information at
306 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
307 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
308
309 config SH_MPC1211
310 bool "Interface MPC1211"
311 depends on CPU_SUBTYPE_SH7751 && BROKEN
312 help
313 CTP/PCI-SH02 is a CPU module computer that is produced
314 by Interface Corporation.
315 More information at <http://www.interface.co.jp>
316
317 config SH_SH03
318 bool "Interface CTP/PCI-SH03"
319 depends on CPU_SUBTYPE_SH7751 && BROKEN
320 select SYS_SUPPORTS_PCI
321 help
322 CTP/PCI-SH03 is a CPU module computer that is produced
323 by Interface Corporation.
324 More information at <http://www.interface.co.jp>
325
326 config SH_SECUREEDGE5410
327 bool "SecureEdge5410"
328 depends on CPU_SUBTYPE_SH7751R
329 select SYS_SUPPORTS_PCI
330 help
331 Select SecureEdge5410 if configuring for a SnapGear SH board.
332 This includes both the OEM SecureEdge products as well as the
333 SME product line.
334
335 config SH_HS7751RVOIP
336 bool "HS7751RVOIP"
337 depends on CPU_SUBTYPE_SH7751R
338 help
339 Select HS7751RVOIP if configuring for a Renesas Technology
340 Sales VoIP board.
341
342 config SH_7710VOIPGW
343 bool "SH7710-VOIP-GW"
344 depends on CPU_SUBTYPE_SH7710
345 help
346 Select this option to build a kernel for the SH7710 based
347 VOIP GW.
348
349 config SH_RTS7751R2D
350 bool "RTS7751R2D"
351 depends on CPU_SUBTYPE_SH7751R
352 select SYS_SUPPORTS_PCI
353 help
354 Select RTS7751R2D if configuring for a Renesas Technology
355 Sales SH-Graphics board.
356
357 config SH_HIGHLANDER
358 bool "Highlander"
359 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
360 select SYS_SUPPORTS_PCI
361
362 config SH_EDOSK7705
363 bool "EDOSK7705"
364 depends on CPU_SUBTYPE_SH7705
365
366 config SH_SH4202_MICRODEV
367 bool "SH4-202 MicroDev"
368 depends on CPU_SUBTYPE_SH4_202
369 help
370 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
371 with an SH4-202 CPU.
372
373 config SH_LANDISK
374 bool "LANDISK"
375 depends on CPU_SUBTYPE_SH7751R
376 select SYS_SUPPORTS_PCI
377 help
378 I-O DATA DEVICE, INC. "LANDISK Series" support.
379
380 config SH_TITAN
381 bool "TITAN"
382 depends on CPU_SUBTYPE_SH7751R
383 select SYS_SUPPORTS_PCI
384 help
385 Select Titan if you are configuring for a Nimble Microsystems
386 NetEngine NP51R.
387
388 config SH_SHMIN
389 bool "SHMIN"
390 depends on CPU_SUBTYPE_SH7706
391 help
392 Select SHMIN if configuring for the SHMIN board.
393
394 config SH_LBOX_RE2
395 bool "L-BOX RE2"
396 depends on CPU_SUBTYPE_SH7751R
397 select SYS_SUPPORTS_PCI
398 help
399 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
400
401 endmenu
402
403 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
404 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
405 source "arch/sh/boards/renesas/r7780rp/Kconfig"
406
407 menu "Timer and clock configuration"
408
409 config SH_TMU
410 bool "TMU timer support"
411 depends on CPU_SH3 || CPU_SH4
412 select GENERIC_TIME
413 select GENERIC_CLOCKEVENTS
414 default y
415 help
416 This enables the use of the TMU as the system timer.
417
418 config SH_CMT
419 bool "CMT timer support"
420 depends on CPU_SH2
421 default y
422 help
423 This enables the use of the CMT as the system timer.
424
425 config SH_MTU2
426 bool "MTU2 timer support"
427 depends on CPU_SH2A
428 default n
429 help
430 This enables the use of the MTU2 as the system timer.
431
432 config SH_TIMER_IRQ
433 int
434 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
435 default "86" if CPU_SUBTYPE_SH7619
436 default "140" if CPU_SUBTYPE_SH7206
437 default "16"
438
439 config SH_PCLK_FREQ
440 int "Peripheral clock frequency (in Hz)"
441 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
442 default "31250000" if CPU_SUBTYPE_SH7619
443 default "32000000" if CPU_SUBTYPE_SH7722
444 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
445 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
446 CPU_SUBTYPE_SH7206
447 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
448 default "66000000" if CPU_SUBTYPE_SH4_202
449 default "50000000"
450 help
451 This option is used to specify the peripheral clock frequency.
452 This is necessary for determining the reference clock value on
453 platforms lacking an RTC.
454
455 config SH_CLK_MD
456 int "CPU Mode Pin Setting"
457 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
458 default 6 if CPU_SUBTYPE_SH7206
459 default 5 if CPU_SUBTYPE_SH7619
460 default 0
461 help
462 MD2 - MD0 pin setting.
463
464 source "kernel/time/Kconfig"
465
466 endmenu
467
468 menu "CPU Frequency scaling"
469
470 source "drivers/cpufreq/Kconfig"
471
472 config SH_CPU_FREQ
473 tristate "SuperH CPU Frequency driver"
474 depends on CPU_FREQ
475 select CPU_FREQ_TABLE
476 help
477 This adds the cpufreq driver for SuperH. At present, only
478 the SH-4 is supported.
479
480 For details, take a look at <file:Documentation/cpu-freq>.
481
482 If unsure, say N.
483
484 endmenu
485
486 source "arch/sh/drivers/Kconfig"
487
488 endmenu
489
490 config ISA_DMA_API
491 bool
492 depends on SH_MPC1211
493 default y
494
495 menu "Kernel features"
496
497 source kernel/Kconfig.hz
498
499 config KEXEC
500 bool "kexec system call (EXPERIMENTAL)"
501 depends on EXPERIMENTAL
502 help
503 kexec is a system call that implements the ability to shutdown your
504 current kernel, and to start another kernel. It is like a reboot
505 but it is independent of the system firmware. And like a reboot
506 you can start any kernel with it, not just Linux.
507
508 The name comes from the similarity to the exec system call.
509
510 It is an ongoing process to be certain the hardware in a machine
511 is properly shutdown, so do not be surprised if this code does not
512 initially work for you. It may help to enable device hotplugging
513 support. As of this writing the exact hardware interface is
514 strongly in flux, so no good recommendation can be made.
515
516 config CRASH_DUMP
517 bool "kernel crash dumps (EXPERIMENTAL)"
518 depends on EXPERIMENTAL
519 help
520 Generate crash dump after being started by kexec.
521 This should be normally only set in special crash dump kernels
522 which are loaded in the main kernel with kexec-tools into
523 a specially reserved region and then later executed after
524 a crash by kdump/kexec. The crash dump kernel must be compiled
525 to a memory address not used by the main kernel using
526 MEMORY_START.
527
528 For more details see Documentation/kdump/kdump.txt
529
530 config SMP
531 bool "Symmetric multi-processing support"
532 depends on SYS_SUPPORTS_SMP
533 ---help---
534 This enables support for systems with more than one CPU. If you have
535 a system with only one CPU, like most personal computers, say N. If
536 you have a system with more than one CPU, say Y.
537
538 If you say N here, the kernel will run on single and multiprocessor
539 machines, but will use only one CPU of a multiprocessor machine. If
540 you say Y here, the kernel will run on many, but not all,
541 singleprocessor machines. On a singleprocessor machine, the kernel
542 will run faster if you say N here.
543
544 People using multiprocessor machines who say Y here should also say
545 Y to "Enhanced Real Time Clock Support", below.
546
547 See also the <file:Documentation/smp.txt>,
548 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
549 at <http://www.tldp.org/docs.html#howto>.
550
551 If you don't know what to do here, say N.
552
553 config NR_CPUS
554 int "Maximum number of CPUs (2-32)"
555 range 2 32
556 depends on SMP
557 default "4" if CPU_SHX3
558 default "2"
559 help
560 This allows you to specify the maximum number of CPUs which this
561 kernel will support. The maximum supported value is 32 and the
562 minimum value which makes sense is 2.
563
564 This is purely to save memory - each supported CPU adds
565 approximately eight kilobytes to the kernel image.
566
567 source "kernel/Kconfig.preempt"
568
569 config NODES_SHIFT
570 int
571 default "1"
572 depends on NEED_MULTIPLE_NODES
573
574 endmenu
575
576 menu "Boot options"
577
578 config ZERO_PAGE_OFFSET
579 hex "Zero page offset"
580 default "0x00004000" if SH_MPC1211 || SH_SH03
581 default "0x00010000" if PAGE_SIZE_64KB
582 default "0x00002000" if PAGE_SIZE_8KB
583 default "0x00001000"
584 help
585 This sets the default offset of zero page.
586
587 config BOOT_LINK_OFFSET
588 hex "Link address offset for booting"
589 default "0x00800000"
590 help
591 This option allows you to set the link address offset of the zImage.
592 This can be useful if you are on a board which has a small amount of
593 memory.
594
595 config UBC_WAKEUP
596 bool "Wakeup UBC on startup"
597 depends on CPU_SH4
598 help
599 Selecting this option will wakeup the User Break Controller (UBC) on
600 startup. Although the UBC is left in an awake state when the processor
601 comes up, some boot loaders misbehave by putting the UBC to sleep in a
602 power saving state, which causes issues with things like ptrace().
603
604 If unsure, say N.
605
606 config CMDLINE_BOOL
607 bool "Default bootloader kernel arguments"
608
609 config CMDLINE
610 string "Initial kernel command string"
611 depends on CMDLINE_BOOL
612 default "console=ttySC1,115200"
613
614 endmenu
615
616 menu "Bus options"
617
618 # Even on SuperH devices which don't have an ISA bus,
619 # this variable helps the PCMCIA modules handle
620 # IRQ requesting properly -- Greg Banks.
621 #
622 # Though we're generally not interested in it when
623 # we're not using PCMCIA, so we make it dependent on
624 # PCMCIA outright. -- PFM.
625 config ISA
626 def_bool y
627 depends on PCMCIA && HD6446X_SERIES
628 help
629 Find out whether you have ISA slots on your motherboard. ISA is the
630 name of a bus system, i.e. the way the CPU talks to the other stuff
631 inside your box. Other bus systems are PCI, EISA, MicroChannel
632 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
633 newer boards don't support it. If you have ISA, say Y, otherwise N.
634
635 config EISA
636 bool
637 ---help---
638 The Extended Industry Standard Architecture (EISA) bus was
639 developed as an open alternative to the IBM MicroChannel bus.
640
641 The EISA bus provided some of the features of the IBM MicroChannel
642 bus while maintaining backward compatibility with cards made for
643 the older ISA bus. The EISA bus saw limited use between 1988 and
644 1995 when it was made obsolete by the PCI bus.
645
646 Say Y here if you are building a kernel for an EISA-based machine.
647
648 Otherwise, say N.
649
650 config MCA
651 bool
652 help
653 MicroChannel Architecture is found in some IBM PS/2 machines and
654 laptops. It is a bus system similar to PCI or ISA. See
655 <file:Documentation/mca.txt> (and especially the web page given
656 there) before attempting to build an MCA bus kernel.
657
658 config SBUS
659 bool
660
661 config SUPERHYWAY
662 tristate "SuperHyway Bus support"
663 depends on CPU_SUBTYPE_SH4_202
664
665 config CF_ENABLER
666 bool "Compact Flash Enabler support"
667 depends on SOLUTION_ENGINE || SH_SH03
668 ---help---
669 Compact Flash is a small, removable mass storage device introduced
670 in 1994 originally as a PCMCIA device. If you say `Y' here, you
671 compile in support for Compact Flash devices directly connected to
672 a SuperH processor. A Compact Flash FAQ is available at
673 <http://www.compactflash.org/faqs/faq.htm>.
674
675 If your board has "Directly Connected" CompactFlash at area 5 or 6,
676 you may want to enable this option. Then, you can use CF as
677 primary IDE drive (only tested for SanDisk).
678
679 If in doubt, select 'N'.
680
681 choice
682 prompt "Compact Flash Connection Area"
683 depends on CF_ENABLER
684 default CF_AREA6
685
686 config CF_AREA5
687 bool "Area5"
688 help
689 If your board has "Directly Connected" CompactFlash, You should
690 select the area where your CF is connected to.
691
692 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
693 - "Area6" if it is connected to Area 6 (0x18000000)
694
695 "Area6" will work for most boards.
696
697 config CF_AREA6
698 bool "Area6"
699
700 endchoice
701
702 config CF_BASE_ADDR
703 hex
704 depends on CF_ENABLER
705 default "0xb8000000" if CF_AREA6
706 default "0xb4000000" if CF_AREA5
707
708 source "arch/sh/drivers/pci/Kconfig"
709
710 source "drivers/pci/Kconfig"
711
712 source "drivers/pcmcia/Kconfig"
713
714 source "drivers/pci/hotplug/Kconfig"
715
716 endmenu
717
718 menu "Executable file formats"
719
720 source "fs/Kconfig.binfmt"
721
722 endmenu
723
724 menu "Power management options (EXPERIMENTAL)"
725 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
726
727 source kernel/power/Kconfig
728
729 endmenu
730
731 source "net/Kconfig"
732
733 source "drivers/Kconfig"
734
735 source "fs/Kconfig"
736
737 source "arch/sh/oprofile/Kconfig"
738
739 source "arch/sh/Kconfig.debug"
740
741 source "security/Kconfig"
742
743 source "crypto/Kconfig"
744
745 source "lib/Kconfig"
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