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
285 Select SH7723 if you have an SH-MobileR2 CPU.
287 config CPU_SUBTYPE_SH7763
288 bool "Support SH7763 processor"
291 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
293 config CPU_SUBTYPE_SH7770
294 bool "Support SH7770 processor"
297 config CPU_SUBTYPE_SH7780
298 bool "Support SH7780 processor"
301 config CPU_SUBTYPE_SH7785
302 bool "Support SH7785 processor"
305 select ARCH_SPARSEMEM_ENABLE
306 select SYS_SUPPORTS_NUMA
308 config CPU_SUBTYPE_SHX3
309 bool "Support SH-X3 processor"
312 select ARCH_SPARSEMEM_ENABLE
313 select SYS_SUPPORTS_NUMA
314 select SYS_SUPPORTS_SMP
316 # SH4AL-DSP Processor Support
318 config CPU_SUBTYPE_SH7343
319 bool "Support SH7343 processor"
322 config CPU_SUBTYPE_SH7722
323 bool "Support SH7722 processor"
326 select ARCH_SPARSEMEM_ENABLE
327 select SYS_SUPPORTS_NUMA
329 config CPU_SUBTYPE_SH7366
330 bool "Support SH7366 processor"
333 select ARCH_SPARSEMEM_ENABLE
334 select SYS_SUPPORTS_NUMA
336 # SH-5 Processor Support
338 config CPU_SUBTYPE_SH5_101
339 bool "Support SH5-101 processor"
342 config CPU_SUBTYPE_SH5_103
343 bool "Support SH5-103 processor"
348 source "arch/sh/mm/Kconfig"
349 source "arch/sh/Kconfig.cpu"
353 config SOLUTION_ENGINE
356 config SH_SOLUTION_ENGINE
357 bool "SolutionEngine"
358 select SOLUTION_ENGINE
359 select CPU_HAS_IPR_IRQ
360 depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
361 CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
364 Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
365 SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
367 config SH_7206_SOLUTION_ENGINE
368 bool "SolutionEngine7206"
369 select SOLUTION_ENGINE
370 depends on CPU_SUBTYPE_SH7206
372 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
375 config SH_7619_SOLUTION_ENGINE
376 bool "SolutionEngine7619"
377 select SOLUTION_ENGINE
378 depends on CPU_SUBTYPE_SH7619
380 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
383 config SH_7721_SOLUTION_ENGINE
384 bool "SolutionEngine7721"
385 select SOLUTION_ENGINE
386 depends on CPU_SUBTYPE_SH7721
388 Select 7721 SolutionEngine if configuring for a Hitachi SH7721
391 config SH_7722_SOLUTION_ENGINE
392 bool "SolutionEngine7722"
393 select SOLUTION_ENGINE
394 depends on CPU_SUBTYPE_SH7722
396 Select 7722 SolutionEngine if configuring for a Hitachi SH772
399 config SH_7751_SOLUTION_ENGINE
400 bool "SolutionEngine7751"
401 select SOLUTION_ENGINE
402 select CPU_HAS_IPR_IRQ
403 depends on CPU_SUBTYPE_SH7751
405 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
408 config SH_7780_SOLUTION_ENGINE
409 bool "SolutionEngine7780"
410 select SOLUTION_ENGINE
411 select SYS_SUPPORTS_PCI
412 depends on CPU_SUBTYPE_SH7780
414 Select 7780 SolutionEngine if configuring for a Renesas SH7780
417 config SH_7343_SOLUTION_ENGINE
418 bool "SolutionEngine7343"
419 select SOLUTION_ENGINE
420 depends on CPU_SUBTYPE_SH7343
422 Select 7343 SolutionEngine if configuring for a Hitachi
423 SH7343 (SH-Mobile 3AS) evaluation board.
425 config SH_7751_SYSTEMH
427 depends on CPU_SUBTYPE_SH7751R
429 Select SystemH if you are configuring for a Renesas SystemH
430 7751R evaluation board.
434 select SYS_SUPPORTS_APM_EMULATION
435 select HD6446X_SERIES
436 depends on CPU_SUBTYPE_SH7709
438 Select HP6XX if configuring for a HP jornada HP6xx.
439 More information (hardware only) at
440 <http://www.hp.com/jornada/>.
444 select SYS_SUPPORTS_PCI
445 depends on CPU_SUBTYPE_SH7091
447 Select Dreamcast if configuring for a SEGA Dreamcast.
448 More information at <http://www.linux-sh.org>
451 bool "Interface CTP/PCI-SH03"
452 depends on CPU_SUBTYPE_SH7751
453 select CPU_HAS_IPR_IRQ
454 select SYS_SUPPORTS_PCI
456 CTP/PCI-SH03 is a CPU module computer that is produced
457 by Interface Corporation.
458 More information at <http://www.interface.co.jp>
460 config SH_SECUREEDGE5410
461 bool "SecureEdge5410"
462 depends on CPU_SUBTYPE_SH7751R
463 select CPU_HAS_IPR_IRQ
464 select SYS_SUPPORTS_PCI
466 Select SecureEdge5410 if configuring for a SnapGear SH board.
467 This includes both the OEM SecureEdge products as well as the
472 depends on CPU_SUBTYPE_SH7751R
473 select SYS_SUPPORTS_PCI
476 Select RTS7751R2D if configuring for a Renesas Technology
477 Sales SH-Graphics board.
481 depends on CPU_SUBTYPE_SH7780
482 select SYS_SUPPORTS_PCI
484 Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
489 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
490 select SYS_SUPPORTS_PCI
495 depends on CPU_SUBTYPE_SH7722
497 Select Migo-R if configuring for the SH7722 Migo-R platform
498 by Renesas System Solutions Asia Pte. Ltd.
502 depends on CPU_SUBTYPE_SH7705
504 config SH_SH4202_MICRODEV
505 bool "SH4-202 MicroDev"
506 depends on CPU_SUBTYPE_SH4_202
508 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
513 depends on CPU_SUBTYPE_SH7751R
514 select SYS_SUPPORTS_PCI
516 I-O DATA DEVICE, INC. "LANDISK Series" support.
520 depends on CPU_SUBTYPE_SH7751R
521 select CPU_HAS_IPR_IRQ
522 select SYS_SUPPORTS_PCI
524 Select Titan if you are configuring for a Nimble Microsystems
529 depends on CPU_SUBTYPE_SH7706
530 select CPU_HAS_IPR_IRQ
532 Select SHMIN if configuring for the SHMIN board.
536 depends on CPU_SUBTYPE_SH7751R
537 select SYS_SUPPORTS_PCI
539 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
542 bool "SH-X3 Prototype board"
543 depends on CPU_SUBTYPE_SHX3
545 config SH_MAGIC_PANEL_R2
546 bool "Magic Panel R2"
547 depends on CPU_SUBTYPE_SH7720
549 Select Magic Panel R2 if configuring for Magic Panel R2.
552 bool "Hitachi Cayman"
553 depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
554 select SYS_SUPPORTS_PCI
558 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
559 source "arch/sh/boards/renesas/r7780rp/Kconfig"
560 source "arch/sh/boards/renesas/sdk7780/Kconfig"
561 source "arch/sh/boards/magicpanelr2/Kconfig"
563 menu "Timer and clock configuration"
567 prompt "TMU timer support"
568 depends on CPU_SH3 || CPU_SH4
570 select GENERIC_CLOCKEVENTS
572 This enables the use of the TMU as the system timer.
576 prompt "CMT timer support"
577 depends on CPU_SH2 && !CPU_SUBTYPE_MXG
579 This enables the use of the CMT as the system timer.
583 prompt "MTU2 timer support"
586 This enables the use of the MTU2 as the system timer.
590 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
592 default "86" if CPU_SUBTYPE_SH7619
593 default "140" if CPU_SUBTYPE_SH7206
594 default "142" if CPU_SUBTYPE_SH7203
595 default "238" if CPU_SUBTYPE_MXG
599 int "Peripheral clock frequency (in Hz)"
600 default "27000000" if CPU_SUBTYPE_SH7343
601 default "31250000" if CPU_SUBTYPE_SH7619
602 default "32000000" if CPU_SUBTYPE_SH7722
603 default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
604 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
605 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
606 CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
607 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
608 default "66000000" if CPU_SUBTYPE_SH4_202
611 This option is used to specify the peripheral clock frequency.
612 This is necessary for determining the reference clock value on
613 platforms lacking an RTC.
616 int "CPU Mode Pin Setting"
618 default 6 if CPU_SUBTYPE_SH7206
619 default 5 if CPU_SUBTYPE_SH7619
622 MD2 - MD0 pin setting.
624 source "kernel/time/Kconfig"
628 menu "CPU Frequency scaling"
630 source "drivers/cpufreq/Kconfig"
633 tristate "SuperH CPU Frequency driver"
635 select CPU_FREQ_TABLE
637 This adds the cpufreq driver for SuperH. At present, only
638 the SH-4 is supported.
640 For details, take a look at <file:Documentation/cpu-freq>.
646 source "arch/sh/drivers/Kconfig"
653 menu "Kernel features"
655 source kernel/Kconfig.hz
658 bool "kexec system call (EXPERIMENTAL)"
659 depends on SUPERH32 && EXPERIMENTAL
661 kexec is a system call that implements the ability to shutdown your
662 current kernel, and to start another kernel. It is like a reboot
663 but it is independent of the system firmware. And like a reboot
664 you can start any kernel with it, not just Linux.
666 The name comes from the similarity to the exec system call.
668 It is an ongoing process to be certain the hardware in a machine
669 is properly shutdown, so do not be surprised if this code does not
670 initially work for you. It may help to enable device hotplugging
671 support. As of this writing the exact hardware interface is
672 strongly in flux, so no good recommendation can be made.
675 bool "kernel crash dumps (EXPERIMENTAL)"
676 depends on SUPERH32 && EXPERIMENTAL
678 Generate crash dump after being started by kexec.
679 This should be normally only set in special crash dump kernels
680 which are loaded in the main kernel with kexec-tools into
681 a specially reserved region and then later executed after
682 a crash by kdump/kexec. The crash dump kernel must be compiled
683 to a memory address not used by the main kernel using
686 For more details see Documentation/kdump/kdump.txt
689 bool "Symmetric multi-processing support"
690 depends on SYS_SUPPORTS_SMP
692 This enables support for systems with more than one CPU. If you have
693 a system with only one CPU, like most personal computers, say N. If
694 you have a system with more than one CPU, say Y.
696 If you say N here, the kernel will run on single and multiprocessor
697 machines, but will use only one CPU of a multiprocessor machine. If
698 you say Y here, the kernel will run on many, but not all,
699 singleprocessor machines. On a singleprocessor machine, the kernel
700 will run faster if you say N here.
702 People using multiprocessor machines who say Y here should also say
703 Y to "Enhanced Real Time Clock Support", below.
705 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
706 available at <http://www.tldp.org/docs.html#howto>.
708 If you don't know what to do here, say N.
711 int "Maximum number of CPUs (2-32)"
714 default "4" if CPU_SHX3
717 This allows you to specify the maximum number of CPUs which this
718 kernel will support. The maximum supported value is 32 and the
719 minimum value which makes sense is 2.
721 This is purely to save memory - each supported CPU adds
722 approximately eight kilobytes to the kernel image.
724 source "kernel/Kconfig.preempt"
728 depends on !SMP && SUPERH32
730 This enables support for gUSA (general UserSpace Atomicity).
731 This is the default implementation for both UP and non-ll/sc
732 CPUs, and is used by the libc, amongst others.
734 For additional information, design information can be found
735 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
737 This should only be disabled for special cases where alternate
738 atomicity implementations exist.
741 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
742 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
744 Enabling this option will allow the kernel to implement some
745 atomic operations using a software implemention of load-locked/
746 store-conditional (LLSC). On machines which do not have hardware
747 LLSC, this should be more efficient than the other alternative of
748 disabling insterrupts around the atomic sequence.
754 config ZERO_PAGE_OFFSET
755 hex "Zero page offset"
756 default "0x00004000" if SH_SH03
757 default "0x00010000" if PAGE_SIZE_64KB
758 default "0x00002000" if PAGE_SIZE_8KB
761 This sets the default offset of zero page.
763 config BOOT_LINK_OFFSET
764 hex "Link address offset for booting"
767 This option allows you to set the link address offset of the zImage.
768 This can be useful if you are on a board which has a small amount of
772 bool "Wakeup UBC on startup"
773 depends on CPU_SH4 && !CPU_SH4A
775 Selecting this option will wakeup the User Break Controller (UBC) on
776 startup. Although the UBC is left in an awake state when the processor
777 comes up, some boot loaders misbehave by putting the UBC to sleep in a
778 power saving state, which causes issues with things like ptrace().
783 bool "Default bootloader kernel arguments"
786 string "Initial kernel command string"
787 depends on CMDLINE_BOOL
788 default "console=ttySC1,115200"
794 # Even on SuperH devices which don't have an ISA bus,
795 # this variable helps the PCMCIA modules handle
796 # IRQ requesting properly -- Greg Banks.
798 # Though we're generally not interested in it when
799 # we're not using PCMCIA, so we make it dependent on
800 # PCMCIA outright. -- PFM.
803 depends on PCMCIA && HD6446X_SERIES
805 Find out whether you have ISA slots on your motherboard. ISA is the
806 name of a bus system, i.e. the way the CPU talks to the other stuff
807 inside your box. Other bus systems are PCI, EISA, MicroChannel
808 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
809 newer boards don't support it. If you have ISA, say Y, otherwise N.
814 The Extended Industry Standard Architecture (EISA) bus was
815 developed as an open alternative to the IBM MicroChannel bus.
817 The EISA bus provided some of the features of the IBM MicroChannel
818 bus while maintaining backward compatibility with cards made for
819 the older ISA bus. The EISA bus saw limited use between 1988 and
820 1995 when it was made obsolete by the PCI bus.
822 Say Y here if you are building a kernel for an EISA-based machine.
829 MicroChannel Architecture is found in some IBM PS/2 machines and
830 laptops. It is a bus system similar to PCI or ISA. See
831 <file:Documentation/mca.txt> (and especially the web page given
832 there) before attempting to build an MCA bus kernel.
838 tristate "SuperHyway Bus support"
839 depends on CPU_SUBTYPE_SH4_202
842 bool "Maple Bus support"
843 depends on SH_DREAMCAST
845 The Maple Bus is SEGA's serial communication bus for peripherals
846 on the Dreamcast. Without this bus support you won't be able to
847 get your Dreamcast keyboard etc to work, so most users
848 probably want to say 'Y' here, unless you are only using the
849 Dreamcast with a serial line terminal or a remote network
853 bool "Compact Flash Enabler support"
854 depends on SOLUTION_ENGINE || SH_SH03
856 Compact Flash is a small, removable mass storage device introduced
857 in 1994 originally as a PCMCIA device. If you say `Y' here, you
858 compile in support for Compact Flash devices directly connected to
859 a SuperH processor. A Compact Flash FAQ is available at
860 <http://www.compactflash.org/faqs/faq.htm>.
862 If your board has "Directly Connected" CompactFlash at area 5 or 6,
863 you may want to enable this option. Then, you can use CF as
864 primary IDE drive (only tested for SanDisk).
866 If in doubt, select 'N'.
869 prompt "Compact Flash Connection Area"
870 depends on CF_ENABLER
876 If your board has "Directly Connected" CompactFlash, You should
877 select the area where your CF is connected to.
879 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
880 - "Area6" if it is connected to Area 6 (0x18000000)
882 "Area6" will work for most boards.
891 depends on CF_ENABLER
892 default "0xb8000000" if CF_AREA6
893 default "0xb4000000" if CF_AREA5
895 source "arch/sh/drivers/pci/Kconfig"
897 source "drivers/pci/Kconfig"
899 source "drivers/pcmcia/Kconfig"
901 source "drivers/pci/hotplug/Kconfig"
905 menu "Executable file formats"
907 source "fs/Kconfig.binfmt"
911 menu "Power management options (EXPERIMENTAL)"
912 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
914 config ARCH_SUSPEND_POSSIBLE
918 source kernel/power/Kconfig
924 source "drivers/Kconfig"
928 source "arch/sh/Kconfig.debug"
930 source "security/Kconfig"
932 source "crypto/Kconfig"