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 config CPU_SUBTYPE_MXG
171 bool "Support MX-G processor"
174 Select MX-G if running on an R8A03022BG part.
176 # SH-3 Processor Support
178 config CPU_SUBTYPE_SH7705
179 bool "Support SH7705 processor"
182 config CPU_SUBTYPE_SH7706
183 bool "Support SH7706 processor"
186 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
188 config CPU_SUBTYPE_SH7707
189 bool "Support SH7707 processor"
192 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
194 config CPU_SUBTYPE_SH7708
195 bool "Support SH7708 processor"
198 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
199 if you have a 100 Mhz SH-3 HD6417708R CPU.
201 config CPU_SUBTYPE_SH7709
202 bool "Support SH7709 processor"
205 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
207 config CPU_SUBTYPE_SH7710
208 bool "Support SH7710 processor"
212 Select SH7710 if you have a SH3-DSP SH7710 CPU.
214 config CPU_SUBTYPE_SH7712
215 bool "Support SH7712 processor"
219 Select SH7712 if you have a SH3-DSP SH7712 CPU.
221 config CPU_SUBTYPE_SH7720
222 bool "Support SH7720 processor"
226 Select SH7720 if you have a SH3-DSP SH7720 CPU.
228 config CPU_SUBTYPE_SH7721
229 bool "Support SH7721 processor"
233 Select SH7721 if you have a SH3-DSP SH7721 CPU.
235 # SH-4 Processor Support
237 config CPU_SUBTYPE_SH7750
238 bool "Support SH7750 processor"
241 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
243 config CPU_SUBTYPE_SH7091
244 bool "Support SH7091 processor"
247 Select SH7091 if you have an SH-4 based Sega device (such as
248 the Dreamcast, Naomi, and Naomi 2).
250 config CPU_SUBTYPE_SH7750R
251 bool "Support SH7750R processor"
254 config CPU_SUBTYPE_SH7750S
255 bool "Support SH7750S processor"
258 config CPU_SUBTYPE_SH7751
259 bool "Support SH7751 processor"
262 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
263 or if you have a HD6417751R CPU.
265 config CPU_SUBTYPE_SH7751R
266 bool "Support SH7751R processor"
269 config CPU_SUBTYPE_SH7760
270 bool "Support SH7760 processor"
273 config CPU_SUBTYPE_SH4_202
274 bool "Support SH4-202 processor"
277 # SH-4A Processor Support
279 config CPU_SUBTYPE_SH7723
280 bool "Support SH7723 processor"
283 select ARCH_SPARSEMEM_ENABLE
284 select SYS_SUPPORTS_NUMA
286 Select SH7723 if you have an SH-MobileR2 CPU.
288 config CPU_SUBTYPE_SH7763
289 bool "Support SH7763 processor"
292 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
294 config CPU_SUBTYPE_SH7770
295 bool "Support SH7770 processor"
298 config CPU_SUBTYPE_SH7780
299 bool "Support SH7780 processor"
302 config CPU_SUBTYPE_SH7785
303 bool "Support SH7785 processor"
306 select ARCH_SPARSEMEM_ENABLE
307 select SYS_SUPPORTS_NUMA
309 config CPU_SUBTYPE_SHX3
310 bool "Support SH-X3 processor"
313 select ARCH_SPARSEMEM_ENABLE
314 select SYS_SUPPORTS_NUMA
315 select SYS_SUPPORTS_SMP
317 # SH4AL-DSP Processor Support
319 config CPU_SUBTYPE_SH7343
320 bool "Support SH7343 processor"
323 config CPU_SUBTYPE_SH7722
324 bool "Support SH7722 processor"
327 select ARCH_SPARSEMEM_ENABLE
328 select SYS_SUPPORTS_NUMA
330 config CPU_SUBTYPE_SH7366
331 bool "Support SH7366 processor"
334 select ARCH_SPARSEMEM_ENABLE
335 select SYS_SUPPORTS_NUMA
337 # SH-5 Processor Support
339 config CPU_SUBTYPE_SH5_101
340 bool "Support SH5-101 processor"
343 config CPU_SUBTYPE_SH5_103
344 bool "Support SH5-103 processor"
349 source "arch/sh/mm/Kconfig"
350 source "arch/sh/Kconfig.cpu"
354 config SOLUTION_ENGINE
357 config SH_SOLUTION_ENGINE
358 bool "SolutionEngine"
359 select SOLUTION_ENGINE
360 select CPU_HAS_IPR_IRQ
361 depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
362 CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
365 Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
366 SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
368 config SH_7206_SOLUTION_ENGINE
369 bool "SolutionEngine7206"
370 select SOLUTION_ENGINE
371 depends on CPU_SUBTYPE_SH7206
373 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
376 config SH_7619_SOLUTION_ENGINE
377 bool "SolutionEngine7619"
378 select SOLUTION_ENGINE
379 depends on CPU_SUBTYPE_SH7619
381 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
384 config SH_7721_SOLUTION_ENGINE
385 bool "SolutionEngine7721"
386 select SOLUTION_ENGINE
387 depends on CPU_SUBTYPE_SH7721
389 Select 7721 SolutionEngine if configuring for a Hitachi SH7721
392 config SH_7722_SOLUTION_ENGINE
393 bool "SolutionEngine7722"
394 select SOLUTION_ENGINE
395 depends on CPU_SUBTYPE_SH7722
397 Select 7722 SolutionEngine if configuring for a Hitachi SH772
400 config SH_7751_SOLUTION_ENGINE
401 bool "SolutionEngine7751"
402 select SOLUTION_ENGINE
403 select CPU_HAS_IPR_IRQ
404 depends on CPU_SUBTYPE_SH7751
406 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
409 config SH_7780_SOLUTION_ENGINE
410 bool "SolutionEngine7780"
411 select SOLUTION_ENGINE
412 select SYS_SUPPORTS_PCI
413 depends on CPU_SUBTYPE_SH7780
415 Select 7780 SolutionEngine if configuring for a Renesas SH7780
418 config SH_7343_SOLUTION_ENGINE
419 bool "SolutionEngine7343"
420 select SOLUTION_ENGINE
421 depends on CPU_SUBTYPE_SH7343
423 Select 7343 SolutionEngine if configuring for a Hitachi
424 SH7343 (SH-Mobile 3AS) evaluation board.
426 config SH_7751_SYSTEMH
428 depends on CPU_SUBTYPE_SH7751R
430 Select SystemH if you are configuring for a Renesas SystemH
431 7751R evaluation board.
435 select SYS_SUPPORTS_APM_EMULATION
436 select HD6446X_SERIES
437 depends on CPU_SUBTYPE_SH7709
439 Select HP6XX if configuring for a HP jornada HP6xx.
440 More information (hardware only) at
441 <http://www.hp.com/jornada/>.
445 select SYS_SUPPORTS_PCI
446 depends on CPU_SUBTYPE_SH7091
448 Select Dreamcast if configuring for a SEGA Dreamcast.
449 More information at <http://www.linux-sh.org>
452 bool "Interface MPC1211"
453 depends on CPU_SUBTYPE_SH7751 && BROKEN
455 CTP/PCI-SH02 is a CPU module computer that is produced
456 by Interface Corporation.
457 More information at <http://www.interface.co.jp>
460 bool "Interface CTP/PCI-SH03"
461 depends on CPU_SUBTYPE_SH7751
462 select CPU_HAS_IPR_IRQ
463 select SYS_SUPPORTS_PCI
465 CTP/PCI-SH03 is a CPU module computer that is produced
466 by Interface Corporation.
467 More information at <http://www.interface.co.jp>
469 config SH_SECUREEDGE5410
470 bool "SecureEdge5410"
471 depends on CPU_SUBTYPE_SH7751R
472 select CPU_HAS_IPR_IRQ
473 select SYS_SUPPORTS_PCI
475 Select SecureEdge5410 if configuring for a SnapGear SH board.
476 This includes both the OEM SecureEdge products as well as the
481 depends on CPU_SUBTYPE_SH7751R
482 select SYS_SUPPORTS_PCI
485 Select RTS7751R2D if configuring for a Renesas Technology
486 Sales SH-Graphics board.
490 depends on CPU_SUBTYPE_SH7780
491 select SYS_SUPPORTS_PCI
493 Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
498 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
499 select SYS_SUPPORTS_PCI
504 depends on CPU_SUBTYPE_SH7722
506 Select Migo-R if configuring for the SH7722 Migo-R platform
507 by Renesas System Solutions Asia Pte. Ltd.
511 depends on CPU_SUBTYPE_SH7705
513 config SH_SH4202_MICRODEV
514 bool "SH4-202 MicroDev"
515 depends on CPU_SUBTYPE_SH4_202
517 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
522 depends on CPU_SUBTYPE_SH7751R
523 select SYS_SUPPORTS_PCI
525 I-O DATA DEVICE, INC. "LANDISK Series" support.
529 depends on CPU_SUBTYPE_SH7751R
530 select CPU_HAS_IPR_IRQ
531 select SYS_SUPPORTS_PCI
533 Select Titan if you are configuring for a Nimble Microsystems
538 depends on CPU_SUBTYPE_SH7706
539 select CPU_HAS_IPR_IRQ
541 Select SHMIN if configuring for the SHMIN board.
545 depends on CPU_SUBTYPE_SH7751R
546 select SYS_SUPPORTS_PCI
548 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
551 bool "SH-X3 Prototype board"
552 depends on CPU_SUBTYPE_SHX3
554 config SH_MAGIC_PANEL_R2
555 bool "Magic Panel R2"
556 depends on CPU_SUBTYPE_SH7720
558 Select Magic Panel R2 if configuring for Magic Panel R2.
561 bool "Hitachi Cayman"
562 depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
563 select SYS_SUPPORTS_PCI
567 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
568 source "arch/sh/boards/renesas/r7780rp/Kconfig"
569 source "arch/sh/boards/renesas/sdk7780/Kconfig"
570 source "arch/sh/boards/magicpanelr2/Kconfig"
572 menu "Timer and clock configuration"
576 prompt "TMU timer support"
577 depends on CPU_SH3 || CPU_SH4
579 select GENERIC_CLOCKEVENTS
581 This enables the use of the TMU as the system timer.
585 prompt "CMT timer support"
586 depends on CPU_SH2 && !CPU_SUBTYPE_MXG
588 This enables the use of the CMT as the system timer.
592 prompt "MTU2 timer support"
595 This enables the use of the MTU2 as the system timer.
599 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
601 default "86" if CPU_SUBTYPE_SH7619
602 default "140" if CPU_SUBTYPE_SH7206
603 default "142" if CPU_SUBTYPE_SH7203
604 default "238" if CPU_SUBTYPE_MXG
608 int "Peripheral clock frequency (in Hz)"
609 default "27000000" if CPU_SUBTYPE_SH7343
610 default "31250000" if CPU_SUBTYPE_SH7619
611 default "32000000" if CPU_SUBTYPE_SH7722
612 default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
613 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
614 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
615 CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
616 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
617 default "66000000" if CPU_SUBTYPE_SH4_202
620 This option is used to specify the peripheral clock frequency.
621 This is necessary for determining the reference clock value on
622 platforms lacking an RTC.
625 int "CPU Mode Pin Setting"
627 default 6 if CPU_SUBTYPE_SH7206
628 default 5 if CPU_SUBTYPE_SH7619
631 MD2 - MD0 pin setting.
633 source "kernel/time/Kconfig"
637 menu "CPU Frequency scaling"
639 source "drivers/cpufreq/Kconfig"
642 tristate "SuperH CPU Frequency driver"
644 select CPU_FREQ_TABLE
646 This adds the cpufreq driver for SuperH. At present, only
647 the SH-4 is supported.
649 For details, take a look at <file:Documentation/cpu-freq>.
655 source "arch/sh/drivers/Kconfig"
661 depends on SH_MPC1211
663 menu "Kernel features"
665 source kernel/Kconfig.hz
668 bool "kexec system call (EXPERIMENTAL)"
669 depends on EXPERIMENTAL
671 kexec is a system call that implements the ability to shutdown your
672 current kernel, and to start another kernel. It is like a reboot
673 but it is independent of the system firmware. And like a reboot
674 you can start any kernel with it, not just Linux.
676 The name comes from the similarity to the exec system call.
678 It is an ongoing process to be certain the hardware in a machine
679 is properly shutdown, so do not be surprised if this code does not
680 initially work for you. It may help to enable device hotplugging
681 support. As of this writing the exact hardware interface is
682 strongly in flux, so no good recommendation can be made.
685 bool "kernel crash dumps (EXPERIMENTAL)"
686 depends on EXPERIMENTAL
688 Generate crash dump after being started by kexec.
689 This should be normally only set in special crash dump kernels
690 which are loaded in the main kernel with kexec-tools into
691 a specially reserved region and then later executed after
692 a crash by kdump/kexec. The crash dump kernel must be compiled
693 to a memory address not used by the main kernel using
696 For more details see Documentation/kdump/kdump.txt
699 bool "Symmetric multi-processing support"
700 depends on SYS_SUPPORTS_SMP
702 This enables support for systems with more than one CPU. If you have
703 a system with only one CPU, like most personal computers, say N. If
704 you have a system with more than one CPU, say Y.
706 If you say N here, the kernel will run on single and multiprocessor
707 machines, but will use only one CPU of a multiprocessor machine. If
708 you say Y here, the kernel will run on many, but not all,
709 singleprocessor machines. On a singleprocessor machine, the kernel
710 will run faster if you say N here.
712 People using multiprocessor machines who say Y here should also say
713 Y to "Enhanced Real Time Clock Support", below.
715 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
716 available at <http://www.tldp.org/docs.html#howto>.
718 If you don't know what to do here, say N.
721 int "Maximum number of CPUs (2-32)"
724 default "4" if CPU_SHX3
727 This allows you to specify the maximum number of CPUs which this
728 kernel will support. The maximum supported value is 32 and the
729 minimum value which makes sense is 2.
731 This is purely to save memory - each supported CPU adds
732 approximately eight kilobytes to the kernel image.
734 source "kernel/Kconfig.preempt"
738 depends on !SMP && SUPERH32
740 This enables support for gUSA (general UserSpace Atomicity).
741 This is the default implementation for both UP and non-ll/sc
742 CPUs, and is used by the libc, amongst others.
744 For additional information, design information can be found
745 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
747 This should only be disabled for special cases where alternate
748 atomicity implementations exist.
751 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
752 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
754 Enabling this option will allow the kernel to implement some
755 atomic operations using a software implemention of load-locked/
756 store-conditional (LLSC). On machines which do not have hardware
757 LLSC, this should be more efficient than the other alternative of
758 disabling insterrupts around the atomic sequence.
764 config ZERO_PAGE_OFFSET
765 hex "Zero page offset"
766 default "0x00004000" if SH_MPC1211 || SH_SH03
767 default "0x00010000" if PAGE_SIZE_64KB
768 default "0x00002000" if PAGE_SIZE_8KB
771 This sets the default offset of zero page.
773 config BOOT_LINK_OFFSET
774 hex "Link address offset for booting"
777 This option allows you to set the link address offset of the zImage.
778 This can be useful if you are on a board which has a small amount of
782 bool "Wakeup UBC on startup"
783 depends on CPU_SH4 && !CPU_SH4A
785 Selecting this option will wakeup the User Break Controller (UBC) on
786 startup. Although the UBC is left in an awake state when the processor
787 comes up, some boot loaders misbehave by putting the UBC to sleep in a
788 power saving state, which causes issues with things like ptrace().
793 bool "Default bootloader kernel arguments"
796 string "Initial kernel command string"
797 depends on CMDLINE_BOOL
798 default "console=ttySC1,115200"
804 # Even on SuperH devices which don't have an ISA bus,
805 # this variable helps the PCMCIA modules handle
806 # IRQ requesting properly -- Greg Banks.
808 # Though we're generally not interested in it when
809 # we're not using PCMCIA, so we make it dependent on
810 # PCMCIA outright. -- PFM.
813 depends on PCMCIA && HD6446X_SERIES
815 Find out whether you have ISA slots on your motherboard. ISA is the
816 name of a bus system, i.e. the way the CPU talks to the other stuff
817 inside your box. Other bus systems are PCI, EISA, MicroChannel
818 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
819 newer boards don't support it. If you have ISA, say Y, otherwise N.
824 The Extended Industry Standard Architecture (EISA) bus was
825 developed as an open alternative to the IBM MicroChannel bus.
827 The EISA bus provided some of the features of the IBM MicroChannel
828 bus while maintaining backward compatibility with cards made for
829 the older ISA bus. The EISA bus saw limited use between 1988 and
830 1995 when it was made obsolete by the PCI bus.
832 Say Y here if you are building a kernel for an EISA-based machine.
839 MicroChannel Architecture is found in some IBM PS/2 machines and
840 laptops. It is a bus system similar to PCI or ISA. See
841 <file:Documentation/mca.txt> (and especially the web page given
842 there) before attempting to build an MCA bus kernel.
848 tristate "SuperHyway Bus support"
849 depends on CPU_SUBTYPE_SH4_202
852 bool "Maple Bus support"
853 depends on SH_DREAMCAST
855 The Maple Bus is SEGA's serial communication bus for peripherals
856 on the Dreamcast. Without this bus support you won't be able to
857 get your Dreamcast keyboard etc to work, so most users
858 probably want to say 'Y' here, unless you are only using the
859 Dreamcast with a serial line terminal or a remote network
863 bool "Compact Flash Enabler support"
864 depends on SOLUTION_ENGINE || SH_SH03
866 Compact Flash is a small, removable mass storage device introduced
867 in 1994 originally as a PCMCIA device. If you say `Y' here, you
868 compile in support for Compact Flash devices directly connected to
869 a SuperH processor. A Compact Flash FAQ is available at
870 <http://www.compactflash.org/faqs/faq.htm>.
872 If your board has "Directly Connected" CompactFlash at area 5 or 6,
873 you may want to enable this option. Then, you can use CF as
874 primary IDE drive (only tested for SanDisk).
876 If in doubt, select 'N'.
879 prompt "Compact Flash Connection Area"
880 depends on CF_ENABLER
886 If your board has "Directly Connected" CompactFlash, You should
887 select the area where your CF is connected to.
889 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
890 - "Area6" if it is connected to Area 6 (0x18000000)
892 "Area6" will work for most boards.
901 depends on CF_ENABLER
902 default "0xb8000000" if CF_AREA6
903 default "0xb4000000" if CF_AREA5
905 source "arch/sh/drivers/pci/Kconfig"
907 source "drivers/pci/Kconfig"
909 source "drivers/pcmcia/Kconfig"
911 source "drivers/pci/hotplug/Kconfig"
915 menu "Executable file formats"
917 source "fs/Kconfig.binfmt"
921 menu "Power management options (EXPERIMENTAL)"
922 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
924 config ARCH_SUSPEND_POSSIBLE
928 source kernel/power/Kconfig
934 source "drivers/Kconfig"
938 source "arch/sh/Kconfig.debug"
940 source "security/Kconfig"
942 source "crypto/Kconfig"