1config SUPERH
2 def_bool y
3 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select HAVE_PATA_PLATFORM
6 select CLKDEV_LOOKUP
7 select HAVE_IDE if HAS_IOPORT_MAP
8 select HAVE_MEMBLOCK
9 select HAVE_MEMBLOCK_NODE_MAP
10 select ARCH_DISCARD_MEMBLOCK
11 select HAVE_OPROFILE
12 select HAVE_GENERIC_DMA_COHERENT
13 select HAVE_ARCH_TRACEHOOK
14 select HAVE_DMA_API_DEBUG
15 select HAVE_PERF_EVENTS
16 select HAVE_DEBUG_BUGVERBOSE
17 select ARCH_HAVE_CUSTOM_GPIO_H
18 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
19 select ARCH_HAS_GCOV_PROFILE_ALL
20 select PERF_USE_VMALLOC
21 select HAVE_DEBUG_KMEMLEAK
22 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_BZIP2
24 select HAVE_KERNEL_LZMA
25 select HAVE_KERNEL_XZ
26 select HAVE_KERNEL_LZO
27 select HAVE_UID16
28 select ARCH_WANT_IPC_PARSE_VERSION
29 select HAVE_SYSCALL_TRACEPOINTS
30 select HAVE_REGS_AND_STACK_ACCESS_API
31 select MAY_HAVE_SPARSE_IRQ
32 select IRQ_FORCED_THREADING
33 select RTC_LIB
34 select GENERIC_ATOMIC64
35 select GENERIC_IRQ_SHOW
36 select GENERIC_SMP_IDLE_THREAD
37 select GENERIC_IDLE_POLL_SETUP
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
40 select GENERIC_STRNCPY_FROM_USER
41 select GENERIC_STRNLEN_USER
42 select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER
43 select MODULES_USE_ELF_RELA
44 select OLD_SIGSUSPEND
45 select OLD_SIGACTION
46 select HAVE_ARCH_AUDITSYSCALL
47 help
48 The SuperH is a RISC processor targeted for use in embedded systems
49 and consumer electronics; it was also used in the Sega Dreamcast
50 gaming console. The SuperH port has a home page at
51 <http://www.linux-sh.org/>.
52
53config SUPERH32
54 def_bool ARCH = "sh"
55 select HAVE_KPROBES
56 select HAVE_KRETPROBES
57 select HAVE_IOREMAP_PROT if MMU && !X2TLB
58 select HAVE_FUNCTION_TRACER
59 select HAVE_FTRACE_MCOUNT_RECORD
60 select HAVE_DYNAMIC_FTRACE
61 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
62 select ARCH_WANT_IPC_PARSE_VERSION
63 select HAVE_FUNCTION_GRAPH_TRACER
64 select HAVE_ARCH_KGDB
65 select HAVE_HW_BREAKPOINT
66 select HAVE_MIXED_BREAKPOINTS_REGS
67 select PERF_EVENTS
68 select ARCH_HIBERNATION_POSSIBLE if MMU
69 select SPARSE_IRQ
70 select HAVE_CC_STACKPROTECTOR
71
72config SUPERH64
73 def_bool ARCH = "sh64"
74 select KALLSYMS
75
76config ARCH_DEFCONFIG
77 string
78 default "arch/sh/configs/shx3_defconfig" if SUPERH32
79 default "arch/sh/configs/cayman_defconfig" if SUPERH64
80
81config RWSEM_GENERIC_SPINLOCK
82 def_bool y
83
84config RWSEM_XCHGADD_ALGORITHM
85 bool
86
87config GENERIC_BUG
88 def_bool y
89 depends on BUG && SUPERH32
90
91config GENERIC_CSUM
92 def_bool y
93 depends on SUPERH64
94
95config GENERIC_HWEIGHT
96 def_bool y
97
98config GENERIC_CALIBRATE_DELAY
99 bool
100
101config GENERIC_LOCKBREAK
102 def_bool y
103 depends on SMP && PREEMPT
104
105config ARCH_SUSPEND_POSSIBLE
106 def_bool n
107
108config ARCH_HIBERNATION_POSSIBLE
109 def_bool n
110
111config SYS_SUPPORTS_APM_EMULATION
112 bool
113 select ARCH_SUSPEND_POSSIBLE
114
115config SYS_SUPPORTS_HUGETLBFS
116 bool
117
118config SYS_SUPPORTS_SMP
119 bool
120
121config SYS_SUPPORTS_NUMA
122 bool
123
124config SYS_SUPPORTS_PCI
125 bool
126
127config STACKTRACE_SUPPORT
128 def_bool y
129
130config LOCKDEP_SUPPORT
131 def_bool y
132
133config ARCH_HAS_ILOG2_U32
134 def_bool n
135
136config ARCH_HAS_ILOG2_U64
137 def_bool n
138
139config NO_IOPORT_MAP
140 def_bool !PCI
141 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \
142 !SH_HP6XX && !SH_SOLUTION_ENGINE
143
144config IO_TRAPPED
145 bool
146
147config SWAP_IO_SPACE
148 bool
149
150config DMA_COHERENT
151 bool
152
153config DMA_NONCOHERENT
154 def_bool !DMA_COHERENT
155
156config NEED_DMA_MAP_STATE
157 def_bool DMA_NONCOHERENT
158
159config NEED_SG_DMA_LENGTH
160 def_bool y
161
162config PGTABLE_LEVELS
163 default 3 if X2TLB
164 default 2
165
166source "init/Kconfig"
167
168source "kernel/Kconfig.freezer"
169
170menu "System type"
171
172
173
174
175config CPU_SH2
176 bool
177 select SH_INTC
178
179config CPU_SH2A
180 bool
181 select CPU_SH2
182 select UNCACHED_MAPPING
183
184config CPU_SH3
185 bool
186 select CPU_HAS_INTEVT
187 select CPU_HAS_SR_RB
188 select SH_INTC
189 select SYS_SUPPORTS_SH_TMU
190
191config CPU_SH4
192 bool
193 select CPU_HAS_INTEVT
194 select CPU_HAS_SR_RB
195 select CPU_HAS_FPU if !CPU_SH4AL_DSP
196 select SH_INTC
197 select SYS_SUPPORTS_SH_TMU
198 select SYS_SUPPORTS_HUGETLBFS if MMU
199
200config CPU_SH4A
201 bool
202 select CPU_SH4
203
204config CPU_SH4AL_DSP
205 bool
206 select CPU_SH4A
207 select CPU_HAS_DSP
208
209config CPU_SH5
210 bool
211 select CPU_HAS_FPU
212 select SYS_SUPPORTS_SH_TMU
213 select SYS_SUPPORTS_HUGETLBFS if MMU
214
215config CPU_SHX2
216 bool
217
218config CPU_SHX3
219 bool
220 select DMA_COHERENT
221 select SYS_SUPPORTS_SMP
222 select SYS_SUPPORTS_NUMA
223
224config ARCH_SHMOBILE
225 bool
226 select ARCH_SUSPEND_POSSIBLE
227 select PM
228
229config CPU_HAS_PMU
230 depends on CPU_SH4 || CPU_SH4A
231 default y
232 bool
233
234if SUPERH32
235
236choice
237 prompt "Processor sub-type selection"
238
239
240
241
242
243
244
245config CPU_SUBTYPE_SH7619
246 bool "Support SH7619 processor"
247 select CPU_SH2
248 select SYS_SUPPORTS_SH_CMT
249
250
251
252config CPU_SUBTYPE_SH7201
253 bool "Support SH7201 processor"
254 select CPU_SH2A
255 select CPU_HAS_FPU
256 select SYS_SUPPORTS_SH_MTU2
257
258config CPU_SUBTYPE_SH7203
259 bool "Support SH7203 processor"
260 select CPU_SH2A
261 select CPU_HAS_FPU
262 select SYS_SUPPORTS_SH_CMT
263 select SYS_SUPPORTS_SH_MTU2
264 select ARCH_WANT_OPTIONAL_GPIOLIB
265 select PINCTRL
266
267config CPU_SUBTYPE_SH7206
268 bool "Support SH7206 processor"
269 select CPU_SH2A
270 select SYS_SUPPORTS_SH_CMT
271 select SYS_SUPPORTS_SH_MTU2
272
273config CPU_SUBTYPE_SH7263
274 bool "Support SH7263 processor"
275 select CPU_SH2A
276 select CPU_HAS_FPU
277 select SYS_SUPPORTS_SH_CMT
278 select SYS_SUPPORTS_SH_MTU2
279
280config CPU_SUBTYPE_SH7264
281 bool "Support SH7264 processor"
282 select CPU_SH2A
283 select CPU_HAS_FPU
284 select SYS_SUPPORTS_SH_CMT
285 select SYS_SUPPORTS_SH_MTU2
286 select PINCTRL
287
288config CPU_SUBTYPE_SH7269
289 bool "Support SH7269 processor"
290 select CPU_SH2A
291 select CPU_HAS_FPU
292 select SYS_SUPPORTS_SH_CMT
293 select SYS_SUPPORTS_SH_MTU2
294 select PINCTRL
295
296config CPU_SUBTYPE_MXG
297 bool "Support MX-G processor"
298 select CPU_SH2A
299 select SYS_SUPPORTS_SH_MTU2
300 help
301 Select MX-G if running on an R8A03022BG part.
302
303
304
305config CPU_SUBTYPE_SH7705
306 bool "Support SH7705 processor"
307 select CPU_SH3
308
309config CPU_SUBTYPE_SH7706
310 bool "Support SH7706 processor"
311 select CPU_SH3
312 help
313 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
314
315config CPU_SUBTYPE_SH7707
316 bool "Support SH7707 processor"
317 select CPU_SH3
318 help
319 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
320
321config CPU_SUBTYPE_SH7708
322 bool "Support SH7708 processor"
323 select CPU_SH3
324 help
325 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
326 if you have a 100 Mhz SH-3 HD6417708R CPU.
327
328config CPU_SUBTYPE_SH7709
329 bool "Support SH7709 processor"
330 select CPU_SH3
331 help
332 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
333
334config CPU_SUBTYPE_SH7710
335 bool "Support SH7710 processor"
336 select CPU_SH3
337 select CPU_HAS_DSP
338 help
339 Select SH7710 if you have a SH3-DSP SH7710 CPU.
340
341config CPU_SUBTYPE_SH7712
342 bool "Support SH7712 processor"
343 select CPU_SH3
344 select CPU_HAS_DSP
345 help
346 Select SH7712 if you have a SH3-DSP SH7712 CPU.
347
348config CPU_SUBTYPE_SH7720
349 bool "Support SH7720 processor"
350 select CPU_SH3
351 select CPU_HAS_DSP
352 select SYS_SUPPORTS_SH_CMT
353 select ARCH_WANT_OPTIONAL_GPIOLIB
354 select USB_OHCI_SH if USB_OHCI_HCD
355 select PINCTRL
356 help
357 Select SH7720 if you have a SH3-DSP SH7720 CPU.
358
359config CPU_SUBTYPE_SH7721
360 bool "Support SH7721 processor"
361 select CPU_SH3
362 select CPU_HAS_DSP
363 select SYS_SUPPORTS_SH_CMT
364 select USB_OHCI_SH if USB_OHCI_HCD
365 help
366 Select SH7721 if you have a SH3-DSP SH7721 CPU.
367
368
369
370config CPU_SUBTYPE_SH7750
371 bool "Support SH7750 processor"
372 select CPU_SH4
373 help
374 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
375
376config CPU_SUBTYPE_SH7091
377 bool "Support SH7091 processor"
378 select CPU_SH4
379 help
380 Select SH7091 if you have an SH-4 based Sega device (such as
381 the Dreamcast, Naomi, and Naomi 2).
382
383config CPU_SUBTYPE_SH7750R
384 bool "Support SH7750R processor"
385 select CPU_SH4
386
387config CPU_SUBTYPE_SH7750S
388 bool "Support SH7750S processor"
389 select CPU_SH4
390
391config CPU_SUBTYPE_SH7751
392 bool "Support SH7751 processor"
393 select CPU_SH4
394 help
395 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
396 or if you have a HD6417751R CPU.
397
398config CPU_SUBTYPE_SH7751R
399 bool "Support SH7751R processor"
400 select CPU_SH4
401
402config CPU_SUBTYPE_SH7760
403 bool "Support SH7760 processor"
404 select CPU_SH4
405
406config CPU_SUBTYPE_SH4_202
407 bool "Support SH4-202 processor"
408 select CPU_SH4
409
410
411
412config CPU_SUBTYPE_SH7723
413 bool "Support SH7723 processor"
414 select CPU_SH4A
415 select CPU_SHX2
416 select ARCH_SHMOBILE
417 select ARCH_SPARSEMEM_ENABLE
418 select SYS_SUPPORTS_SH_CMT
419 select ARCH_WANT_OPTIONAL_GPIOLIB
420 select PINCTRL
421 help
422 Select SH7723 if you have an SH-MobileR2 CPU.
423
424config CPU_SUBTYPE_SH7724
425 bool "Support SH7724 processor"
426 select CPU_SH4A
427 select CPU_SHX2
428 select ARCH_SHMOBILE
429 select ARCH_SPARSEMEM_ENABLE
430 select SYS_SUPPORTS_SH_CMT
431 select ARCH_WANT_OPTIONAL_GPIOLIB
432 select PINCTRL
433 help
434 Select SH7724 if you have an SH-MobileR2R CPU.
435
436config CPU_SUBTYPE_SH7734
437 bool "Support SH7734 processor"
438 select CPU_SH4A
439 select CPU_SHX2
440 select ARCH_WANT_OPTIONAL_GPIOLIB
441 select PINCTRL
442 help
443 Select SH7734 if you have a SH4A SH7734 CPU.
444
445config CPU_SUBTYPE_SH7757
446 bool "Support SH7757 processor"
447 select CPU_SH4A
448 select CPU_SHX2
449 select ARCH_WANT_OPTIONAL_GPIOLIB
450 select PINCTRL
451 help
452 Select SH7757 if you have a SH4A SH7757 CPU.
453
454config CPU_SUBTYPE_SH7763
455 bool "Support SH7763 processor"
456 select CPU_SH4A
457 select USB_OHCI_SH if USB_OHCI_HCD
458 help
459 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
460
461config CPU_SUBTYPE_SH7770
462 bool "Support SH7770 processor"
463 select CPU_SH4A
464
465config CPU_SUBTYPE_SH7780
466 bool "Support SH7780 processor"
467 select CPU_SH4A
468
469config CPU_SUBTYPE_SH7785
470 bool "Support SH7785 processor"
471 select CPU_SH4A
472 select CPU_SHX2
473 select ARCH_SPARSEMEM_ENABLE
474 select SYS_SUPPORTS_NUMA
475 select ARCH_WANT_OPTIONAL_GPIOLIB
476 select PINCTRL
477
478config CPU_SUBTYPE_SH7786
479 bool "Support SH7786 processor"
480 select CPU_SH4A
481 select CPU_SHX3
482 select CPU_HAS_PTEAEX
483 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
484 select ARCH_WANT_OPTIONAL_GPIOLIB
485 select USB_OHCI_SH if USB_OHCI_HCD
486 select USB_EHCI_SH if USB_EHCI_HCD
487 select PINCTRL
488
489config CPU_SUBTYPE_SHX3
490 bool "Support SH-X3 processor"
491 select CPU_SH4A
492 select CPU_SHX3
493 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
494 select ARCH_REQUIRE_GPIOLIB
495 select PINCTRL
496
497
498
499config CPU_SUBTYPE_SH7343
500 bool "Support SH7343 processor"
501 select CPU_SH4AL_DSP
502 select ARCH_SHMOBILE
503 select SYS_SUPPORTS_SH_CMT
504
505config CPU_SUBTYPE_SH7722
506 bool "Support SH7722 processor"
507 select CPU_SH4AL_DSP
508 select CPU_SHX2
509 select ARCH_SHMOBILE
510 select ARCH_SPARSEMEM_ENABLE
511 select SYS_SUPPORTS_NUMA
512 select SYS_SUPPORTS_SH_CMT
513 select ARCH_WANT_OPTIONAL_GPIOLIB
514 select PINCTRL
515
516config CPU_SUBTYPE_SH7366
517 bool "Support SH7366 processor"
518 select CPU_SH4AL_DSP
519 select CPU_SHX2
520 select ARCH_SHMOBILE
521 select ARCH_SPARSEMEM_ENABLE
522 select SYS_SUPPORTS_NUMA
523 select SYS_SUPPORTS_SH_CMT
524
525endchoice
526
527endif
528
529if SUPERH64
530
531choice
532 prompt "Processor sub-type selection"
533
534
535
536config CPU_SUBTYPE_SH5_101
537 bool "Support SH5-101 processor"
538 select CPU_SH5
539
540config CPU_SUBTYPE_SH5_103
541 bool "Support SH5-103 processor"
542 select CPU_SH5
543
544endchoice
545
546endif
547
548source "arch/sh/mm/Kconfig"
549
550source "arch/sh/Kconfig.cpu"
551
552source "arch/sh/boards/Kconfig"
553
554menu "Timer and clock configuration"
555
556config SH_PCLK_FREQ
557 int "Peripheral clock frequency (in Hz)"
558 depends on SH_CLK_CPG_LEGACY
559 default "31250000" if CPU_SUBTYPE_SH7619
560 default "33333333" if CPU_SUBTYPE_SH7770 || \
561 CPU_SUBTYPE_SH7760 || \
562 CPU_SUBTYPE_SH7705 || \
563 CPU_SUBTYPE_SH7203 || \
564 CPU_SUBTYPE_SH7206 || \
565 CPU_SUBTYPE_SH7263 || \
566 CPU_SUBTYPE_MXG
567 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
568 default "66000000" if CPU_SUBTYPE_SH4_202
569 default "50000000"
570 help
571 This option is used to specify the peripheral clock frequency.
572 This is necessary for determining the reference clock value on
573 platforms lacking an RTC.
574
575config SH_CLK_CPG
576 def_bool y
577
578config SH_CLK_CPG_LEGACY
579 depends on SH_CLK_CPG
580 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
581 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \
582 !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \
583 !CPU_SUBTYPE_SH7269
584
585endmenu
586
587menu "CPU Frequency scaling"
588source "drivers/cpufreq/Kconfig"
589endmenu
590
591source "arch/sh/drivers/Kconfig"
592
593endmenu
594
595menu "Kernel features"
596
597source kernel/Kconfig.hz
598
599config KEXEC
600 bool "kexec system call (EXPERIMENTAL)"
601 depends on SUPERH32 && MMU
602 select KEXEC_CORE
603 help
604 kexec is a system call that implements the ability to shutdown your
605 current kernel, and to start another kernel. It is like a reboot
606 but it is independent of the system firmware. And like a reboot
607 you can start any kernel with it, not just Linux.
608
609 The name comes from the similarity to the exec system call.
610
611 It is an ongoing process to be certain the hardware in a machine
612 is properly shutdown, so do not be surprised if this code does not
613 initially work for you. As of this writing the exact hardware
614 interface is strongly in flux, so no good recommendation can be
615 made.
616
617config CRASH_DUMP
618 bool "kernel crash dumps (EXPERIMENTAL)"
619 depends on SUPERH32 && BROKEN_ON_SMP
620 help
621 Generate crash dump after being started by kexec.
622 This should be normally only set in special crash dump kernels
623 which are loaded in the main kernel with kexec-tools into
624 a specially reserved region and then later executed after
625 a crash by kdump/kexec. The crash dump kernel must be compiled
626 to a memory address not used by the main kernel using
627 PHYSICAL_START.
628
629 For more details see Documentation/kdump/kdump.txt
630
631config KEXEC_JUMP
632 bool "kexec jump (EXPERIMENTAL)"
633 depends on SUPERH32 && KEXEC && HIBERNATION
634 help
635 Jump between original kernel and kexeced kernel and invoke
636 code via KEXEC
637
638config PHYSICAL_START
639 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
640 default MEMORY_START
641 ---help---
642 This gives the physical address where the kernel is loaded
643 and is ordinarily the same as MEMORY_START.
644
645 Different values are primarily used in the case of kexec on panic
646 where the fail safe kernel needs to run at a different address
647 than the panic-ed kernel.
648
649config SECCOMP
650 bool "Enable seccomp to safely compute untrusted bytecode"
651 depends on PROC_FS
652 help
653 This kernel feature is useful for number crunching applications
654 that may need to compute untrusted bytecode during their
655 execution. By using pipes or other transports made available to
656 the process as file descriptors supporting the read/write
657 syscalls, it's possible to isolate those applications in
658 their own address space using seccomp. Once seccomp is
659 enabled via prctl, it cannot be disabled and the task is only
660 allowed to execute a few safe syscalls defined by each seccomp
661 mode.
662
663 If unsure, say N.
664
665config SMP
666 bool "Symmetric multi-processing support"
667 depends on SYS_SUPPORTS_SMP
668 ---help---
669 This enables support for systems with more than one CPU. If you have
670 a system with only one CPU, say N. If you have a system with more
671 than one CPU, say Y.
672
673 If you say N here, the kernel will run on uni- and multiprocessor
674 machines, but will use only one CPU of a multiprocessor machine. If
675 you say Y here, the kernel will run on many, but not all,
676 uniprocessor machines. On a uniprocessor machine, the kernel
677 will run faster if you say N here.
678
679 People using multiprocessor machines who say Y here should also say
680 Y to "Enhanced Real Time Clock Support", below.
681
682 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
683 available at <http://www.tldp.org/docs.html
684
685 If you don't know what to do here, say N.
686
687config NR_CPUS
688 int "Maximum number of CPUs (2-32)"
689 range 2 32
690 depends on SMP
691 default "4" if CPU_SUBTYPE_SHX3
692 default "2"
693 help
694 This allows you to specify the maximum number of CPUs which this
695 kernel will support. The maximum supported value is 32 and the
696 minimum value which makes sense is 2.
697
698 This is purely to save memory - each supported CPU adds
699 approximately eight kilobytes to the kernel image.
700
701config HOTPLUG_CPU
702 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
703 depends on SMP
704 help
705 Say Y here to experiment with turning CPUs off and on. CPUs
706 can be controlled through /sys/devices/system/cpu.
707
708source "kernel/Kconfig.preempt"
709
710config GUSA
711 def_bool y
712 depends on !SMP && SUPERH32
713 help
714 This enables support for gUSA (general UserSpace Atomicity).
715 This is the default implementation for both UP and non-ll/sc
716 CPUs, and is used by the libc, amongst others.
717
718 For additional information, design information can be found
719 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
720
721 This should only be disabled for special cases where alternate
722 atomicity implementations exist.
723
724config GUSA_RB
725 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
726 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
727 help
728 Enabling this option will allow the kernel to implement some
729 atomic operations using a software implementation of load-locked/
730 store-conditional (LLSC). On machines which do not have hardware
731 LLSC, this should be more efficient than the other alternative of
732 disabling interrupts around the atomic sequence.
733
734config HW_PERF_EVENTS
735 bool "Enable hardware performance counter support for perf events"
736 depends on PERF_EVENTS && CPU_HAS_PMU
737 default y
738 help
739 Enable hardware performance counter support for perf events. If
740 disabled, perf events will use software events only.
741
742source "drivers/sh/Kconfig"
743
744endmenu
745
746menu "Boot options"
747
748config ZERO_PAGE_OFFSET
749 hex
750 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
751 SH_7751_SOLUTION_ENGINE
752 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
753 default "0x00002000" if PAGE_SIZE_8KB
754 default "0x00001000"
755 help
756 This sets the default offset of zero page.
757
758config BOOT_LINK_OFFSET
759 hex
760 default "0x00210000" if SH_SHMIN
761 default "0x00400000" if SH_CAYMAN
762 default "0x00810000" if SH_7780_SOLUTION_ENGINE
763 default "0x009e0000" if SH_TITAN
764 default "0x01800000" if SH_SDK7780
765 default "0x02000000" if SH_EDOSK7760
766 default "0x00800000"
767 help
768 This option allows you to set the link address offset of the zImage.
769 This can be useful if you are on a board which has a small amount of
770 memory.
771
772config ENTRY_OFFSET
773 hex
774 default "0x00001000" if PAGE_SIZE_4KB
775 default "0x00002000" if PAGE_SIZE_8KB
776 default "0x00004000" if PAGE_SIZE_16KB
777 default "0x00010000" if PAGE_SIZE_64KB
778 default "0x00000000"
779
780config ROMIMAGE_MMCIF
781 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
782 depends on CPU_SUBTYPE_SH7724
783 help
784 Say Y here to include experimental MMCIF loading code in
785 romImage. With this enabled it is possible to write the romImage
786 kernel image to an MMC card and boot the kernel straight from
787 the reset vector. At reset the processor Mask ROM will load the
788 first part of the romImage which in turn loads the rest the kernel
789 image to RAM using the MMCIF hardware block.
790
791choice
792 prompt "Kernel command line"
793 optional
794 default CMDLINE_OVERWRITE
795 help
796 Setting this option allows the kernel command line arguments
797 to be set.
798
799config CMDLINE_OVERWRITE
800 bool "Overwrite bootloader kernel arguments"
801 help
802 Given string will overwrite any arguments passed in by
803 a bootloader.
804
805config CMDLINE_EXTEND
806 bool "Extend bootloader kernel arguments"
807 help
808 Given string will be concatenated with arguments passed in
809 by a bootloader.
810
811endchoice
812
813config CMDLINE
814 string "Kernel command line arguments string"
815 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
816 default "console=ttySC1,115200"
817
818endmenu
819
820menu "Bus options"
821
822config SUPERHYWAY
823 tristate "SuperHyway Bus support"
824 depends on CPU_SUBTYPE_SH4_202
825
826config MAPLE
827 bool "Maple Bus support"
828 depends on SH_DREAMCAST
829 help
830 The Maple Bus is SEGA's serial communication bus for peripherals
831 on the Dreamcast. Without this bus support you won't be able to
832 get your Dreamcast keyboard etc to work, so most users
833 probably want to say 'Y' here, unless you are only using the
834 Dreamcast with a serial line terminal or a remote network
835 connection.
836
837config PCI
838 bool "PCI support"
839 depends on SYS_SUPPORTS_PCI
840 select PCI_DOMAINS
841 select GENERIC_PCI_IOMAP
842 select NO_GENERIC_PCI_IOPORT_MAP
843 help
844 Find out whether you have a PCI motherboard. PCI is the name of a
845 bus system, i.e. the way the CPU talks to the other stuff inside
846 your box. If you have PCI, say Y, otherwise N.
847
848config PCI_DOMAINS
849 bool
850
851source "drivers/pci/Kconfig"
852
853source "drivers/pcmcia/Kconfig"
854
855endmenu
856
857menu "Executable file formats"
858
859source "fs/Kconfig.binfmt"
860
861endmenu
862
863menu "Power management options (EXPERIMENTAL)"
864
865source "kernel/power/Kconfig"
866
867source "drivers/cpuidle/Kconfig"
868
869endmenu
870
871source "net/Kconfig"
872
873source "drivers/Kconfig"
874
875source "fs/Kconfig"
876
877source "arch/sh/Kconfig.debug"
878
879source "security/Kconfig"
880
881source "crypto/Kconfig"
882
883source "lib/Kconfig"
884
