2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Linux/SuperH Kernel Configuration"
14 The SuperH is a RISC processor targeted for use in embedded systems
15 and consumer electronics; it was also used in the Sega Dreamcast
16 gaming console. The SuperH port has a home page at
17 <http://www.linux-sh.org/>.
25 config RWSEM_GENERIC_SPINLOCK
28 config RWSEM_XCHGADD_ALGORITHM
33 depends on BUG && SUPERH32
35 config GENERIC_FIND_NEXT_BIT
38 config GENERIC_HWEIGHT
41 config GENERIC_HARDIRQS
44 config GENERIC_IRQ_PROBE
47 config GENERIC_CALIBRATE_DELAY
56 config GENERIC_CLOCKEVENTS
59 config SYS_SUPPORTS_PM
62 config SYS_SUPPORTS_APM_EMULATION
64 select SYS_SUPPORTS_PM
66 config SYS_SUPPORTS_SMP
69 config SYS_SUPPORTS_NUMA
72 config SYS_SUPPORTS_PCI
75 config STACKTRACE_SUPPORT
78 config LOCKDEP_SUPPORT
81 config ARCH_HAS_ILOG2_U32
84 config ARCH_HAS_ILOG2_U64
87 config ARCH_NO_VIRT_TO_BUS
90 config ARCH_SUPPORTS_AOUT
112 select CPU_HAS_INTEVT
117 select CPU_HAS_INTEVT
119 select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
120 select CPU_HAS_FPU if !CPU_SH4AL_DSP
142 prompt "Processor sub-type selection"
148 # SH-2 Processor Support
150 config CPU_SUBTYPE_SH7619
151 bool "Support SH7619 processor"
154 # SH-2A Processor Support
156 config CPU_SUBTYPE_SH7203
157 bool "Support SH7203 processor"
161 config CPU_SUBTYPE_SH7206
162 bool "Support SH7206 processor"
165 config CPU_SUBTYPE_SH7263
166 bool "Support SH7263 processor"
170 # SH-3 Processor Support
172 config CPU_SUBTYPE_SH7705
173 bool "Support SH7705 processor"
176 config CPU_SUBTYPE_SH7706
177 bool "Support SH7706 processor"
180 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
182 config CPU_SUBTYPE_SH7707
183 bool "Support SH7707 processor"
186 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
188 config CPU_SUBTYPE_SH7708
189 bool "Support SH7708 processor"
192 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
193 if you have a 100 Mhz SH-3 HD6417708R CPU.
195 config CPU_SUBTYPE_SH7709
196 bool "Support SH7709 processor"
199 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
201 config CPU_SUBTYPE_SH7710
202 bool "Support SH7710 processor"
206 Select SH7710 if you have a SH3-DSP SH7710 CPU.
208 config CPU_SUBTYPE_SH7712
209 bool "Support SH7712 processor"
213 Select SH7712 if you have a SH3-DSP SH7712 CPU.
215 config CPU_SUBTYPE_SH7720
216 bool "Support SH7720 processor"
220 Select SH7720 if you have a SH3-DSP SH7720 CPU.
222 config CPU_SUBTYPE_SH7721
223 bool "Support SH7721 processor"
227 Select SH7721 if you have a SH3-DSP SH7721 CPU.
229 # SH-4 Processor Support
231 config CPU_SUBTYPE_SH7750
232 bool "Support SH7750 processor"
235 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
237 config CPU_SUBTYPE_SH7091
238 bool "Support SH7091 processor"
241 Select SH7091 if you have an SH-4 based Sega device (such as
242 the Dreamcast, Naomi, and Naomi 2).
244 config CPU_SUBTYPE_SH7750R
245 bool "Support SH7750R processor"
248 config CPU_SUBTYPE_SH7750S
249 bool "Support SH7750S processor"
252 config CPU_SUBTYPE_SH7751
253 bool "Support SH7751 processor"
256 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
257 or if you have a HD6417751R CPU.
259 config CPU_SUBTYPE_SH7751R
260 bool "Support SH7751R processor"
263 config CPU_SUBTYPE_SH7760
264 bool "Support SH7760 processor"
267 config CPU_SUBTYPE_SH4_202
268 bool "Support SH4-202 processor"
271 # SH-4A Processor Support
273 config CPU_SUBTYPE_SH7763
274 bool "Support SH7763 processor"
277 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
279 config CPU_SUBTYPE_SH7770
280 bool "Support SH7770 processor"
283 config CPU_SUBTYPE_SH7780
284 bool "Support SH7780 processor"
287 config CPU_SUBTYPE_SH7785
288 bool "Support SH7785 processor"
291 select ARCH_SPARSEMEM_ENABLE
292 select SYS_SUPPORTS_NUMA
294 config CPU_SUBTYPE_SHX3
295 bool "Support SH-X3 processor"
298 select ARCH_SPARSEMEM_ENABLE
299 select SYS_SUPPORTS_NUMA
300 select SYS_SUPPORTS_SMP
302 # SH4AL-DSP Processor Support
304 config CPU_SUBTYPE_SH7343
305 bool "Support SH7343 processor"
308 config CPU_SUBTYPE_SH7722
309 bool "Support SH7722 processor"
312 select ARCH_SPARSEMEM_ENABLE
313 select SYS_SUPPORTS_NUMA
315 config CPU_SUBTYPE_SH7366
316 bool "Support SH7366 processor"
319 select ARCH_SPARSEMEM_ENABLE
320 select SYS_SUPPORTS_NUMA
322 # SH-5 Processor Support
324 config CPU_SUBTYPE_SH5_101
325 bool "Support SH5-101 processor"
328 config CPU_SUBTYPE_SH5_103
329 bool "Support SH5-103 processor"
334 source "arch/sh/mm/Kconfig"
335 source "arch/sh/Kconfig.cpu"
339 config SOLUTION_ENGINE
342 config SH_SOLUTION_ENGINE
343 bool "SolutionEngine"
344 select SOLUTION_ENGINE
345 select CPU_HAS_IPR_IRQ
346 depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
347 CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
350 Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
351 SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
353 config SH_7206_SOLUTION_ENGINE
354 bool "SolutionEngine7206"
355 select SOLUTION_ENGINE
356 depends on CPU_SUBTYPE_SH7206
358 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
361 config SH_7619_SOLUTION_ENGINE
362 bool "SolutionEngine7619"
363 select SOLUTION_ENGINE
364 depends on CPU_SUBTYPE_SH7619
366 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
369 config SH_7722_SOLUTION_ENGINE
370 bool "SolutionEngine7722"
371 select SOLUTION_ENGINE
372 depends on CPU_SUBTYPE_SH7722
374 Select 7722 SolutionEngine if configuring for a Hitachi SH772
377 config SH_7751_SOLUTION_ENGINE
378 bool "SolutionEngine7751"
379 select SOLUTION_ENGINE
380 select CPU_HAS_IPR_IRQ
381 depends on CPU_SUBTYPE_SH7751
383 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
386 config SH_7780_SOLUTION_ENGINE
387 bool "SolutionEngine7780"
388 select SOLUTION_ENGINE
389 select SYS_SUPPORTS_PCI
390 depends on CPU_SUBTYPE_SH7780
392 Select 7780 SolutionEngine if configuring for a Renesas SH7780
395 config SH_7343_SOLUTION_ENGINE
396 bool "SolutionEngine7343"
397 select SOLUTION_ENGINE
398 depends on CPU_SUBTYPE_SH7343
400 Select 7343 SolutionEngine if configuring for a Hitachi
401 SH7343 (SH-Mobile 3AS) evaluation board.
403 config SH_7751_SYSTEMH
405 depends on CPU_SUBTYPE_SH7751R
407 Select SystemH if you are configuring for a Renesas SystemH
408 7751R evaluation board.
412 select SYS_SUPPORTS_APM_EMULATION
413 select HD6446X_SERIES
414 depends on CPU_SUBTYPE_SH7709
416 Select HP6XX if configuring for a HP jornada HP6xx.
417 More information (hardware only) at
418 <http://www.hp.com/jornada/>.
422 select SYS_SUPPORTS_PCI
423 depends on CPU_SUBTYPE_SH7091
425 Select Dreamcast if configuring for a SEGA Dreamcast.
426 More information at <http://www.linux-sh.org>
429 bool "Interface MPC1211"
430 depends on CPU_SUBTYPE_SH7751 && BROKEN
432 CTP/PCI-SH02 is a CPU module computer that is produced
433 by Interface Corporation.
434 More information at <http://www.interface.co.jp>
437 bool "Interface CTP/PCI-SH03"
438 depends on CPU_SUBTYPE_SH7751
439 select CPU_HAS_IPR_IRQ
440 select SYS_SUPPORTS_PCI
442 CTP/PCI-SH03 is a CPU module computer that is produced
443 by Interface Corporation.
444 More information at <http://www.interface.co.jp>
446 config SH_SECUREEDGE5410
447 bool "SecureEdge5410"
448 depends on CPU_SUBTYPE_SH7751R
449 select CPU_HAS_IPR_IRQ
450 select SYS_SUPPORTS_PCI
452 Select SecureEdge5410 if configuring for a SnapGear SH board.
453 This includes both the OEM SecureEdge products as well as the
458 depends on CPU_SUBTYPE_SH7751R
459 select SYS_SUPPORTS_PCI
462 Select RTS7751R2D if configuring for a Renesas Technology
463 Sales SH-Graphics board.
467 depends on CPU_SUBTYPE_SH7780
468 select SYS_SUPPORTS_PCI
470 Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
475 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
476 select SYS_SUPPORTS_PCI
481 depends on CPU_SUBTYPE_SH7722
483 Select Migo-R if configuring for the SH7722 Migo-R platform
484 by Renesas System Solutions Asia Pte. Ltd.
488 depends on CPU_SUBTYPE_SH7705
490 config SH_SH4202_MICRODEV
491 bool "SH4-202 MicroDev"
492 depends on CPU_SUBTYPE_SH4_202
494 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
499 depends on CPU_SUBTYPE_SH7751R
500 select SYS_SUPPORTS_PCI
502 I-O DATA DEVICE, INC. "LANDISK Series" support.
506 depends on CPU_SUBTYPE_SH7751R
507 select CPU_HAS_IPR_IRQ
508 select SYS_SUPPORTS_PCI
510 Select Titan if you are configuring for a Nimble Microsystems
515 depends on CPU_SUBTYPE_SH7706
516 select CPU_HAS_IPR_IRQ
518 Select SHMIN if configuring for the SHMIN board.
522 depends on CPU_SUBTYPE_SH7751R
523 select SYS_SUPPORTS_PCI
525 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
528 bool "SH-X3 Prototype board"
529 depends on CPU_SUBTYPE_SHX3
531 config SH_MAGIC_PANEL_R2
532 bool "Magic Panel R2"
533 depends on CPU_SUBTYPE_SH7720
535 Select Magic Panel R2 if configuring for Magic Panel R2.
538 bool "Hitachi Cayman"
539 depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
540 select SYS_SUPPORTS_PCI
544 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
545 source "arch/sh/boards/renesas/r7780rp/Kconfig"
546 source "arch/sh/boards/renesas/sdk7780/Kconfig"
547 source "arch/sh/boards/magicpanelr2/Kconfig"
549 menu "Timer and clock configuration"
553 prompt "TMU timer support"
554 depends on CPU_SH3 || CPU_SH4
556 select GENERIC_CLOCKEVENTS
558 This enables the use of the TMU as the system timer.
562 prompt "CMT timer support"
565 This enables the use of the CMT as the system timer.
569 prompt "MTU2 timer support"
572 This enables the use of the MTU2 as the system timer.
576 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
578 default "86" if CPU_SUBTYPE_SH7619
579 default "140" if CPU_SUBTYPE_SH7206
580 default "142" if CPU_SUBTYPE_SH7203
584 int "Peripheral clock frequency (in Hz)"
585 default "27000000" if CPU_SUBTYPE_SH7343
586 default "31250000" if CPU_SUBTYPE_SH7619
587 default "32000000" if CPU_SUBTYPE_SH7722
588 default "33333333" if CPU_SUBTYPE_SH7770 || \
589 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
590 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
592 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
593 default "66000000" if CPU_SUBTYPE_SH4_202
596 This option is used to specify the peripheral clock frequency.
597 This is necessary for determining the reference clock value on
598 platforms lacking an RTC.
601 int "CPU Mode Pin Setting"
603 default 6 if CPU_SUBTYPE_SH7206
604 default 5 if CPU_SUBTYPE_SH7619
607 MD2 - MD0 pin setting.
609 source "kernel/time/Kconfig"
613 menu "CPU Frequency scaling"
615 source "drivers/cpufreq/Kconfig"
618 tristate "SuperH CPU Frequency driver"
620 select CPU_FREQ_TABLE
622 This adds the cpufreq driver for SuperH. At present, only
623 the SH-4 is supported.
625 For details, take a look at <file:Documentation/cpu-freq>.
631 source "arch/sh/drivers/Kconfig"
637 depends on SH_MPC1211
639 menu "Kernel features"
641 source kernel/Kconfig.hz
644 bool "kexec system call (EXPERIMENTAL)"
645 depends on EXPERIMENTAL
647 kexec is a system call that implements the ability to shutdown your
648 current kernel, and to start another kernel. It is like a reboot
649 but it is independent of the system firmware. And like a reboot
650 you can start any kernel with it, not just Linux.
652 The name comes from the similarity to the exec system call.
654 It is an ongoing process to be certain the hardware in a machine
655 is properly shutdown, so do not be surprised if this code does not
656 initially work for you. It may help to enable device hotplugging
657 support. As of this writing the exact hardware interface is
658 strongly in flux, so no good recommendation can be made.
661 bool "kernel crash dumps (EXPERIMENTAL)"
662 depends on EXPERIMENTAL
664 Generate crash dump after being started by kexec.
665 This should be normally only set in special crash dump kernels
666 which are loaded in the main kernel with kexec-tools into
667 a specially reserved region and then later executed after
668 a crash by kdump/kexec. The crash dump kernel must be compiled
669 to a memory address not used by the main kernel using
672 For more details see Documentation/kdump/kdump.txt
675 bool "Symmetric multi-processing support"
676 depends on SYS_SUPPORTS_SMP
678 This enables support for systems with more than one CPU. If you have
679 a system with only one CPU, like most personal computers, say N. If
680 you have a system with more than one CPU, say Y.
682 If you say N here, the kernel will run on single and multiprocessor
683 machines, but will use only one CPU of a multiprocessor machine. If
684 you say Y here, the kernel will run on many, but not all,
685 singleprocessor machines. On a singleprocessor machine, the kernel
686 will run faster if you say N here.
688 People using multiprocessor machines who say Y here should also say
689 Y to "Enhanced Real Time Clock Support", below.
691 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
692 available at <http://www.tldp.org/docs.html#howto>.
694 If you don't know what to do here, say N.
697 int "Maximum number of CPUs (2-32)"
700 default "4" if CPU_SHX3
703 This allows you to specify the maximum number of CPUs which this
704 kernel will support. The maximum supported value is 32 and the
705 minimum value which makes sense is 2.
707 This is purely to save memory - each supported CPU adds
708 approximately eight kilobytes to the kernel image.
710 source "kernel/Kconfig.preempt"
714 depends on !SMP && SUPERH32
716 This enables support for gUSA (general UserSpace Atomicity).
717 This is the default implementation for both UP and non-ll/sc
718 CPUs, and is used by the libc, amongst others.
720 For additional information, design information can be found
721 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
723 This should only be disabled for special cases where alternate
724 atomicity implementations exist.
727 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
728 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
730 Enabling this option will allow the kernel to implement some
731 atomic operations using a software implemention of load-locked/
732 store-conditional (LLSC). On machines which do not have hardware
733 LLSC, this should be more efficient than the other alternative of
734 disabling insterrupts around the atomic sequence.
740 config ZERO_PAGE_OFFSET
741 hex "Zero page offset"
742 default "0x00004000" if SH_MPC1211 || SH_SH03
743 default "0x00010000" if PAGE_SIZE_64KB
744 default "0x00002000" if PAGE_SIZE_8KB
747 This sets the default offset of zero page.
749 config BOOT_LINK_OFFSET
750 hex "Link address offset for booting"
753 This option allows you to set the link address offset of the zImage.
754 This can be useful if you are on a board which has a small amount of
758 bool "Wakeup UBC on startup"
759 depends on CPU_SH4 && !CPU_SH4A
761 Selecting this option will wakeup the User Break Controller (UBC) on
762 startup. Although the UBC is left in an awake state when the processor
763 comes up, some boot loaders misbehave by putting the UBC to sleep in a
764 power saving state, which causes issues with things like ptrace().
769 bool "Default bootloader kernel arguments"
772 string "Initial kernel command string"
773 depends on CMDLINE_BOOL
774 default "console=ttySC1,115200"
780 # Even on SuperH devices which don't have an ISA bus,
781 # this variable helps the PCMCIA modules handle
782 # IRQ requesting properly -- Greg Banks.
784 # Though we're generally not interested in it when
785 # we're not using PCMCIA, so we make it dependent on
786 # PCMCIA outright. -- PFM.
789 depends on PCMCIA && HD6446X_SERIES
791 Find out whether you have ISA slots on your motherboard. ISA is the
792 name of a bus system, i.e. the way the CPU talks to the other stuff
793 inside your box. Other bus systems are PCI, EISA, MicroChannel
794 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
795 newer boards don't support it. If you have ISA, say Y, otherwise N.
800 The Extended Industry Standard Architecture (EISA) bus was
801 developed as an open alternative to the IBM MicroChannel bus.
803 The EISA bus provided some of the features of the IBM MicroChannel
804 bus while maintaining backward compatibility with cards made for
805 the older ISA bus. The EISA bus saw limited use between 1988 and
806 1995 when it was made obsolete by the PCI bus.
808 Say Y here if you are building a kernel for an EISA-based machine.
815 MicroChannel Architecture is found in some IBM PS/2 machines and
816 laptops. It is a bus system similar to PCI or ISA. See
817 <file:Documentation/mca.txt> (and especially the web page given
818 there) before attempting to build an MCA bus kernel.
824 tristate "SuperHyway Bus support"
825 depends on CPU_SUBTYPE_SH4_202
828 bool "Maple Bus support"
829 depends on SH_DREAMCAST
831 The Maple Bus is SEGA's serial communication bus for peripherals
832 on the Dreamcast. Without this bus support you won't be able to
833 get your Dreamcast keyboard etc to work, so most users
834 probably want to say 'Y' here, unless you are only using the
835 Dreamcast with a serial line terminal or a remote network
839 bool "Compact Flash Enabler support"
840 depends on SOLUTION_ENGINE || SH_SH03
842 Compact Flash is a small, removable mass storage device introduced
843 in 1994 originally as a PCMCIA device. If you say `Y' here, you
844 compile in support for Compact Flash devices directly connected to
845 a SuperH processor. A Compact Flash FAQ is available at
846 <http://www.compactflash.org/faqs/faq.htm>.
848 If your board has "Directly Connected" CompactFlash at area 5 or 6,
849 you may want to enable this option. Then, you can use CF as
850 primary IDE drive (only tested for SanDisk).
852 If in doubt, select 'N'.
855 prompt "Compact Flash Connection Area"
856 depends on CF_ENABLER
862 If your board has "Directly Connected" CompactFlash, You should
863 select the area where your CF is connected to.
865 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
866 - "Area6" if it is connected to Area 6 (0x18000000)
868 "Area6" will work for most boards.
877 depends on CF_ENABLER
878 default "0xb8000000" if CF_AREA6
879 default "0xb4000000" if CF_AREA5
881 source "arch/sh/drivers/pci/Kconfig"
883 source "drivers/pci/Kconfig"
885 source "drivers/pcmcia/Kconfig"
887 source "drivers/pci/hotplug/Kconfig"
891 menu "Executable file formats"
893 source "fs/Kconfig.binfmt"
897 menu "Power management options (EXPERIMENTAL)"
898 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
900 config ARCH_SUSPEND_POSSIBLE
904 source kernel/power/Kconfig
910 source "drivers/Kconfig"
914 source "arch/sh/Kconfig.debug"
916 source "security/Kconfig"
918 source "crypto/Kconfig"