sh: Plug in support for ARCH=sh64 using sh SRCARCH.
[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 def_bool y
10 select EMBEDDED
11 select HAVE_CLK
12 select HAVE_IDE
13 select HAVE_OPROFILE
14 select HAVE_GENERIC_DMA_COHERENT
15 select HAVE_IOREMAP_PROT if MMU
16 select HAVE_ARCH_TRACEHOOK
17 select HAVE_DMA_API_DEBUG
18 help
19 The SuperH is a RISC processor targeted for use in embedded systems
20 and consumer electronics; it was also used in the Sega Dreamcast
21 gaming console. The SuperH port has a home page at
22 <http://www.linux-sh.org/>.
23
24 config SUPERH32
25 def_bool ARCH = "sh"
26 select HAVE_KPROBES
27 select HAVE_KRETPROBES
28 select HAVE_FUNCTION_TRACER
29 select HAVE_FTRACE_MCOUNT_RECORD
30 select HAVE_DYNAMIC_FTRACE
31 select HAVE_ARCH_KGDB
32 select ARCH_HIBERNATION_POSSIBLE if MMU
33
34 config SUPERH64
35 def_bool ARCH = "sh64"
36
37 config ARCH_DEFCONFIG
38 string
39 default "arch/sh/configs/shx3_defconfig" if SUPERH32
40 default "arch/sh/configs/cayman_defconfig" if SUPERH64
41
42 config RWSEM_GENERIC_SPINLOCK
43 def_bool y
44
45 config RWSEM_XCHGADD_ALGORITHM
46 bool
47
48 config GENERIC_BUG
49 def_bool y
50 depends on BUG && SUPERH32
51
52 config GENERIC_FIND_NEXT_BIT
53 def_bool y
54
55 config GENERIC_HWEIGHT
56 def_bool y
57
58 config GENERIC_HARDIRQS
59 def_bool y
60
61 config GENERIC_HARDIRQS_NO__DO_IRQ
62 def_bool y
63
64 config GENERIC_IRQ_PROBE
65 def_bool y
66
67 config GENERIC_GPIO
68 def_bool n
69
70 config GENERIC_CALIBRATE_DELAY
71 bool
72
73 config GENERIC_IOMAP
74 bool
75
76 config GENERIC_TIME
77 def_bool n
78
79 config GENERIC_CLOCKEVENTS
80 def_bool n
81
82 config GENERIC_CLOCKEVENTS_BROADCAST
83 bool
84
85 config GENERIC_LOCKBREAK
86 def_bool y
87 depends on SMP && PREEMPT
88
89 config SYS_SUPPORTS_PM
90 bool
91 depends on !SMP
92
93 config ARCH_SUSPEND_POSSIBLE
94 def_bool n
95
96 config ARCH_HIBERNATION_POSSIBLE
97 def_bool n
98
99 config SYS_SUPPORTS_APM_EMULATION
100 bool
101 select ARCH_SUSPEND_POSSIBLE
102
103 config SYS_SUPPORTS_SMP
104 bool
105
106 config SYS_SUPPORTS_NUMA
107 bool
108
109 config SYS_SUPPORTS_PCI
110 bool
111
112 config SYS_SUPPORTS_CMT
113 bool
114
115 config STACKTRACE_SUPPORT
116 def_bool y
117
118 config LOCKDEP_SUPPORT
119 def_bool y
120
121 config HAVE_LATENCYTOP_SUPPORT
122 def_bool y
123 depends on !SMP
124
125 config ARCH_HAS_ILOG2_U32
126 def_bool n
127
128 config ARCH_HAS_ILOG2_U64
129 def_bool n
130
131 config ARCH_NO_VIRT_TO_BUS
132 def_bool y
133
134 config ARCH_HAS_DEFAULT_IDLE
135 def_bool y
136
137 config IO_TRAPPED
138 bool
139
140 source "init/Kconfig"
141
142 source "kernel/Kconfig.freezer"
143
144 menu "System type"
145
146 #
147 # Processor families
148 #
149 config CPU_SH2
150 bool
151
152 config CPU_SH2A
153 bool
154 select CPU_SH2
155
156 config CPU_SH3
157 bool
158 select CPU_HAS_INTEVT
159 select CPU_HAS_SR_RB
160
161 config CPU_SH4
162 bool
163 select CPU_HAS_INTEVT
164 select CPU_HAS_SR_RB
165 select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
166 select CPU_HAS_FPU if !CPU_SH4AL_DSP
167
168 config CPU_SH4A
169 bool
170 select CPU_SH4
171
172 config CPU_SH4AL_DSP
173 bool
174 select CPU_SH4A
175 select CPU_HAS_DSP
176
177 config CPU_SH5
178 bool
179 select CPU_HAS_FPU
180
181 config CPU_SHX2
182 bool
183
184 config CPU_SHX3
185 bool
186
187 config ARCH_SHMOBILE
188 bool
189 select ARCH_SUSPEND_POSSIBLE
190
191 if SUPERH32
192
193 choice
194 prompt "Processor sub-type selection"
195
196 #
197 # Processor subtypes
198 #
199
200 # SH-2 Processor Support
201
202 config CPU_SUBTYPE_SH7619
203 bool "Support SH7619 processor"
204 select CPU_SH2
205 select SYS_SUPPORTS_CMT
206
207 # SH-2A Processor Support
208
209 config CPU_SUBTYPE_SH7201
210 bool "Support SH7201 processor"
211 select CPU_SH2A
212 select CPU_HAS_FPU
213
214 config CPU_SUBTYPE_SH7203
215 bool "Support SH7203 processor"
216 select CPU_SH2A
217 select CPU_HAS_FPU
218 select SYS_SUPPORTS_CMT
219
220 config CPU_SUBTYPE_SH7206
221 bool "Support SH7206 processor"
222 select CPU_SH2A
223 select SYS_SUPPORTS_CMT
224
225 config CPU_SUBTYPE_SH7263
226 bool "Support SH7263 processor"
227 select CPU_SH2A
228 select CPU_HAS_FPU
229 select SYS_SUPPORTS_CMT
230
231 config CPU_SUBTYPE_MXG
232 bool "Support MX-G processor"
233 select CPU_SH2A
234 help
235 Select MX-G if running on an R8A03022BG part.
236
237 # SH-3 Processor Support
238
239 config CPU_SUBTYPE_SH7705
240 bool "Support SH7705 processor"
241 select CPU_SH3
242
243 config CPU_SUBTYPE_SH7706
244 bool "Support SH7706 processor"
245 select CPU_SH3
246 help
247 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
248
249 config CPU_SUBTYPE_SH7707
250 bool "Support SH7707 processor"
251 select CPU_SH3
252 help
253 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
254
255 config CPU_SUBTYPE_SH7708
256 bool "Support SH7708 processor"
257 select CPU_SH3
258 help
259 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
260 if you have a 100 Mhz SH-3 HD6417708R CPU.
261
262 config CPU_SUBTYPE_SH7709
263 bool "Support SH7709 processor"
264 select CPU_SH3
265 help
266 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
267
268 config CPU_SUBTYPE_SH7710
269 bool "Support SH7710 processor"
270 select CPU_SH3
271 select CPU_HAS_DSP
272 help
273 Select SH7710 if you have a SH3-DSP SH7710 CPU.
274
275 config CPU_SUBTYPE_SH7712
276 bool "Support SH7712 processor"
277 select CPU_SH3
278 select CPU_HAS_DSP
279 help
280 Select SH7712 if you have a SH3-DSP SH7712 CPU.
281
282 config CPU_SUBTYPE_SH7720
283 bool "Support SH7720 processor"
284 select CPU_SH3
285 select CPU_HAS_DSP
286 help
287 Select SH7720 if you have a SH3-DSP SH7720 CPU.
288
289 config CPU_SUBTYPE_SH7721
290 bool "Support SH7721 processor"
291 select CPU_SH3
292 select CPU_HAS_DSP
293 help
294 Select SH7721 if you have a SH3-DSP SH7721 CPU.
295
296 # SH-4 Processor Support
297
298 config CPU_SUBTYPE_SH7750
299 bool "Support SH7750 processor"
300 select CPU_SH4
301 help
302 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
303
304 config CPU_SUBTYPE_SH7091
305 bool "Support SH7091 processor"
306 select CPU_SH4
307 help
308 Select SH7091 if you have an SH-4 based Sega device (such as
309 the Dreamcast, Naomi, and Naomi 2).
310
311 config CPU_SUBTYPE_SH7750R
312 bool "Support SH7750R processor"
313 select CPU_SH4
314
315 config CPU_SUBTYPE_SH7750S
316 bool "Support SH7750S processor"
317 select CPU_SH4
318
319 config CPU_SUBTYPE_SH7751
320 bool "Support SH7751 processor"
321 select CPU_SH4
322 help
323 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
324 or if you have a HD6417751R CPU.
325
326 config CPU_SUBTYPE_SH7751R
327 bool "Support SH7751R processor"
328 select CPU_SH4
329
330 config CPU_SUBTYPE_SH7760
331 bool "Support SH7760 processor"
332 select CPU_SH4
333
334 config CPU_SUBTYPE_SH4_202
335 bool "Support SH4-202 processor"
336 select CPU_SH4
337
338 # SH-4A Processor Support
339
340 config CPU_SUBTYPE_SH7723
341 bool "Support SH7723 processor"
342 select CPU_SH4A
343 select CPU_SHX2
344 select ARCH_SHMOBILE
345 select ARCH_SPARSEMEM_ENABLE
346 select SYS_SUPPORTS_CMT
347 help
348 Select SH7723 if you have an SH-MobileR2 CPU.
349
350 config CPU_SUBTYPE_SH7763
351 bool "Support SH7763 processor"
352 select CPU_SH4A
353 help
354 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
355
356 config CPU_SUBTYPE_SH7770
357 bool "Support SH7770 processor"
358 select CPU_SH4A
359
360 config CPU_SUBTYPE_SH7780
361 bool "Support SH7780 processor"
362 select CPU_SH4A
363
364 config CPU_SUBTYPE_SH7785
365 bool "Support SH7785 processor"
366 select CPU_SH4A
367 select CPU_SHX2
368 select ARCH_SPARSEMEM_ENABLE
369 select SYS_SUPPORTS_NUMA
370
371 config CPU_SUBTYPE_SH7786
372 bool "Support SH7786 processor"
373 select CPU_SH4A
374 select CPU_SHX3
375 select CPU_HAS_PTEAEX
376 select ARCH_SPARSEMEM_ENABLE
377 select SYS_SUPPORTS_NUMA
378
379 config CPU_SUBTYPE_SHX3
380 bool "Support SH-X3 processor"
381 select CPU_SH4A
382 select CPU_SHX3
383 select ARCH_SPARSEMEM_ENABLE
384 select SYS_SUPPORTS_NUMA
385 select SYS_SUPPORTS_SMP
386 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
387
388 # SH4AL-DSP Processor Support
389
390 config CPU_SUBTYPE_SH7343
391 bool "Support SH7343 processor"
392 select CPU_SH4AL_DSP
393 select ARCH_SHMOBILE
394 select SYS_SUPPORTS_CMT
395
396 config CPU_SUBTYPE_SH7722
397 bool "Support SH7722 processor"
398 select CPU_SH4AL_DSP
399 select CPU_SHX2
400 select ARCH_SHMOBILE
401 select ARCH_SPARSEMEM_ENABLE
402 select SYS_SUPPORTS_NUMA
403 select SYS_SUPPORTS_CMT
404
405 config CPU_SUBTYPE_SH7366
406 bool "Support SH7366 processor"
407 select CPU_SH4AL_DSP
408 select CPU_SHX2
409 select ARCH_SHMOBILE
410 select ARCH_SPARSEMEM_ENABLE
411 select SYS_SUPPORTS_NUMA
412 select SYS_SUPPORTS_CMT
413
414 endchoice
415
416 endif
417
418 if SUPERH64
419
420 choice
421 prompt "Processor sub-type selection"
422
423 # SH-5 Processor Support
424
425 config CPU_SUBTYPE_SH5_101
426 bool "Support SH5-101 processor"
427 select CPU_SH5
428
429 config CPU_SUBTYPE_SH5_103
430 bool "Support SH5-103 processor"
431 select CPU_SH5
432
433 endchoice
434
435 endif
436
437 source "arch/sh/mm/Kconfig"
438
439 source "arch/sh/Kconfig.cpu"
440
441 source "arch/sh/boards/Kconfig"
442
443 menu "Timer and clock configuration"
444
445 config SH_TMU
446 bool "TMU timer support"
447 depends on CPU_SH3 || CPU_SH4
448 default y
449 select GENERIC_TIME
450 select GENERIC_CLOCKEVENTS
451 help
452 This enables the use of the TMU as the system timer.
453
454 config SH_CMT
455 bool "CMT timer support"
456 depends on SYS_SUPPORTS_CMT && CPU_SH2
457 default y
458 help
459 This enables the use of the CMT as the system timer.
460
461 #
462 # Support for the new-style CMT driver. This will replace SH_CMT
463 # once its other dependencies are merged.
464 #
465 config SH_TIMER_CMT
466 bool "CMT clockevents driver"
467 depends on SYS_SUPPORTS_CMT && !SH_CMT
468 select GENERIC_CLOCKEVENTS
469
470 config SH_MTU2
471 bool "MTU2 timer support"
472 depends on CPU_SH2A
473 default y
474 help
475 This enables the use of the MTU2 as the system timer.
476
477 config SH_TIMER_IRQ
478 int
479 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
480 CPU_SUBTYPE_SH7763
481 default "86" if CPU_SUBTYPE_SH7619
482 default "140" if CPU_SUBTYPE_SH7206
483 default "142" if CPU_SUBTYPE_SH7203 && SH_CMT
484 default "153" if CPU_SUBTYPE_SH7203 && SH_MTU2
485 default "238" if CPU_SUBTYPE_MXG
486 default "16"
487
488 config SH_PCLK_FREQ
489 int "Peripheral clock frequency (in Hz)"
490 default "27000000" if CPU_SUBTYPE_SH7343
491 default "31250000" if CPU_SUBTYPE_SH7619
492 default "32000000" if CPU_SUBTYPE_SH7722
493 default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
494 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
495 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
496 CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG || \
497 CPU_SUBTYPE_SH7786
498 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
499 default "66000000" if CPU_SUBTYPE_SH4_202
500 default "50000000"
501 help
502 This option is used to specify the peripheral clock frequency.
503 This is necessary for determining the reference clock value on
504 platforms lacking an RTC.
505
506 config SH_CLK_MD
507 int "CPU Mode Pin Setting"
508 depends on CPU_SH2
509 default 6 if CPU_SUBTYPE_SH7206
510 default 5 if CPU_SUBTYPE_SH7619
511 default 0
512 help
513 MD2 - MD0 pin setting.
514
515 source "kernel/time/Kconfig"
516
517 endmenu
518
519 menu "CPU Frequency scaling"
520
521 source "drivers/cpufreq/Kconfig"
522
523 config SH_CPU_FREQ
524 tristate "SuperH CPU Frequency driver"
525 depends on CPU_FREQ
526 select CPU_FREQ_TABLE
527 help
528 This adds the cpufreq driver for SuperH. Any CPU that supports
529 clock rate rounding through the clock framework can use this
530 driver. While it will make the kernel slightly larger, this is
531 harmless for CPUs that don't support rate rounding. The driver
532 will also generate a notice in the boot log before disabling
533 itself if the CPU in question is not capable of rate rounding.
534
535 For details, take a look at <file:Documentation/cpu-freq>.
536
537 If unsure, say N.
538
539 endmenu
540
541 source "arch/sh/drivers/Kconfig"
542
543 endmenu
544
545 menu "Kernel features"
546
547 source kernel/Kconfig.hz
548
549 config KEXEC
550 bool "kexec system call (EXPERIMENTAL)"
551 depends on SUPERH32 && EXPERIMENTAL && MMU
552 help
553 kexec is a system call that implements the ability to shutdown your
554 current kernel, and to start another kernel. It is like a reboot
555 but it is independent of the system firmware. And like a reboot
556 you can start any kernel with it, not just Linux.
557
558 The name comes from the similarity to the exec system call.
559
560 It is an ongoing process to be certain the hardware in a machine
561 is properly shutdown, so do not be surprised if this code does not
562 initially work for you. It may help to enable device hotplugging
563 support. As of this writing the exact hardware interface is
564 strongly in flux, so no good recommendation can be made.
565
566 config CRASH_DUMP
567 bool "kernel crash dumps (EXPERIMENTAL)"
568 depends on SUPERH32 && EXPERIMENTAL
569 help
570 Generate crash dump after being started by kexec.
571 This should be normally only set in special crash dump kernels
572 which are loaded in the main kernel with kexec-tools into
573 a specially reserved region and then later executed after
574 a crash by kdump/kexec. The crash dump kernel must be compiled
575 to a memory address not used by the main kernel using
576 MEMORY_START.
577
578 For more details see Documentation/kdump/kdump.txt
579
580 config KEXEC_JUMP
581 bool "kexec jump (EXPERIMENTAL)"
582 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
583 help
584 Jump between original kernel and kexeced kernel and invoke
585 code via KEXEC
586
587 config SECCOMP
588 bool "Enable seccomp to safely compute untrusted bytecode"
589 depends on PROC_FS
590 help
591 This kernel feature is useful for number crunching applications
592 that may need to compute untrusted bytecode during their
593 execution. By using pipes or other transports made available to
594 the process as file descriptors supporting the read/write
595 syscalls, it's possible to isolate those applications in
596 their own address space using seccomp. Once seccomp is
597 enabled via prctl, it cannot be disabled and the task is only
598 allowed to execute a few safe syscalls defined by each seccomp
599 mode.
600
601 If unsure, say N.
602
603 config SMP
604 bool "Symmetric multi-processing support"
605 depends on SYS_SUPPORTS_SMP
606 select USE_GENERIC_SMP_HELPERS
607 ---help---
608 This enables support for systems with more than one CPU. If you have
609 a system with only one CPU, like most personal computers, say N. If
610 you have a system with more than one CPU, say Y.
611
612 If you say N here, the kernel will run on single and multiprocessor
613 machines, but will use only one CPU of a multiprocessor machine. If
614 you say Y here, the kernel will run on many, but not all,
615 singleprocessor machines. On a singleprocessor machine, the kernel
616 will run faster if you say N here.
617
618 People using multiprocessor machines who say Y here should also say
619 Y to "Enhanced Real Time Clock Support", below.
620
621 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
622 available at <http://www.tldp.org/docs.html#howto>.
623
624 If you don't know what to do here, say N.
625
626 config NR_CPUS
627 int "Maximum number of CPUs (2-32)"
628 range 2 32
629 depends on SMP
630 default "4" if CPU_SHX3
631 default "2"
632 help
633 This allows you to specify the maximum number of CPUs which this
634 kernel will support. The maximum supported value is 32 and the
635 minimum value which makes sense is 2.
636
637 This is purely to save memory - each supported CPU adds
638 approximately eight kilobytes to the kernel image.
639
640 source "kernel/Kconfig.preempt"
641
642 config GUSA
643 def_bool y
644 depends on !SMP && SUPERH32
645 help
646 This enables support for gUSA (general UserSpace Atomicity).
647 This is the default implementation for both UP and non-ll/sc
648 CPUs, and is used by the libc, amongst others.
649
650 For additional information, design information can be found
651 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
652
653 This should only be disabled for special cases where alternate
654 atomicity implementations exist.
655
656 config GUSA_RB
657 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
658 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
659 help
660 Enabling this option will allow the kernel to implement some
661 atomic operations using a software implementation of load-locked/
662 store-conditional (LLSC). On machines which do not have hardware
663 LLSC, this should be more efficient than the other alternative of
664 disabling interrupts around the atomic sequence.
665
666 endmenu
667
668 menu "Boot options"
669
670 config ZERO_PAGE_OFFSET
671 hex "Zero page offset"
672 default "0x00004000" if SH_SH03
673 default "0x00010000" if PAGE_SIZE_64KB
674 default "0x00002000" if PAGE_SIZE_8KB
675 default "0x00001000"
676 help
677 This sets the default offset of zero page.
678
679 config BOOT_LINK_OFFSET
680 hex "Link address offset for booting"
681 default "0x00800000"
682 help
683 This option allows you to set the link address offset of the zImage.
684 This can be useful if you are on a board which has a small amount of
685 memory.
686
687 config UBC_WAKEUP
688 bool "Wakeup UBC on startup"
689 depends on CPU_SH4 && !CPU_SH4A
690 help
691 Selecting this option will wakeup the User Break Controller (UBC) on
692 startup. Although the UBC is left in an awake state when the processor
693 comes up, some boot loaders misbehave by putting the UBC to sleep in a
694 power saving state, which causes issues with things like ptrace().
695
696 If unsure, say N.
697
698 config CMDLINE_BOOL
699 bool "Default bootloader kernel arguments"
700
701 config CMDLINE
702 string "Initial kernel command string"
703 depends on CMDLINE_BOOL
704 default "console=ttySC1,115200"
705
706 endmenu
707
708 menu "Bus options"
709
710 config SUPERHYWAY
711 tristate "SuperHyway Bus support"
712 depends on CPU_SUBTYPE_SH4_202
713
714 config MAPLE
715 bool "Maple Bus support"
716 depends on SH_DREAMCAST
717 help
718 The Maple Bus is SEGA's serial communication bus for peripherals
719 on the Dreamcast. Without this bus support you won't be able to
720 get your Dreamcast keyboard etc to work, so most users
721 probably want to say 'Y' here, unless you are only using the
722 Dreamcast with a serial line terminal or a remote network
723 connection.
724
725 source "arch/sh/drivers/pci/Kconfig"
726
727 source "drivers/pci/pcie/Kconfig"
728
729 source "drivers/pci/Kconfig"
730
731 source "drivers/pcmcia/Kconfig"
732
733 source "drivers/pci/hotplug/Kconfig"
734
735 endmenu
736
737 menu "Executable file formats"
738
739 source "fs/Kconfig.binfmt"
740
741 endmenu
742
743 menu "Power management options (EXPERIMENTAL)"
744 depends on EXPERIMENTAL
745
746 source "kernel/power/Kconfig"
747
748 source "drivers/cpuidle/Kconfig"
749
750 endmenu
751
752 source "net/Kconfig"
753
754 source "drivers/Kconfig"
755
756 source "fs/Kconfig"
757
758 source "arch/sh/Kconfig.debug"
759
760 source "security/Kconfig"
761
762 source "crypto/Kconfig"
763
764 source "lib/Kconfig"
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