2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Linux/SuperH Kernel Configuration"
15 The SuperH is a RISC processor targeted for use in embedded systems
16 and consumer electronics; it was also used in the Sega Dreamcast
17 gaming console. The SuperH port has a home page at
18 <http://www.linux-sh.org/>.
26 config RWSEM_GENERIC_SPINLOCK
29 config RWSEM_XCHGADD_ALGORITHM
34 depends on BUG && SUPERH32
36 config GENERIC_FIND_NEXT_BIT
39 config GENERIC_HWEIGHT
42 config GENERIC_HARDIRQS
45 config GENERIC_IRQ_PROBE
48 config GENERIC_CALIBRATE_DELAY
57 config GENERIC_CLOCKEVENTS
60 config SYS_SUPPORTS_PM
63 config SYS_SUPPORTS_APM_EMULATION
65 select SYS_SUPPORTS_PM
67 config SYS_SUPPORTS_SMP
70 config SYS_SUPPORTS_NUMA
73 config SYS_SUPPORTS_PCI
76 config STACKTRACE_SUPPORT
79 config LOCKDEP_SUPPORT
82 config ARCH_HAS_ILOG2_U32
85 config ARCH_HAS_ILOG2_U64
88 config ARCH_NO_VIRT_TO_BUS
91 config ARCH_SUPPORTS_AOUT
113 select CPU_HAS_INTEVT
118 select CPU_HAS_INTEVT
120 select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
121 select CPU_HAS_FPU if !CPU_SH4AL_DSP
143 prompt "Processor sub-type selection"
149 # SH-2 Processor Support
151 config CPU_SUBTYPE_SH7619
152 bool "Support SH7619 processor"
155 # SH-2A Processor Support
157 config CPU_SUBTYPE_SH7203
158 bool "Support SH7203 processor"
162 config CPU_SUBTYPE_SH7206
163 bool "Support SH7206 processor"
166 config CPU_SUBTYPE_SH7263
167 bool "Support SH7263 processor"
171 config CPU_SUBTYPE_MXG
172 bool "Support MX-G processor"
175 Select MX-G if running on an R8A03022BG part.
177 # SH-3 Processor Support
179 config CPU_SUBTYPE_SH7705
180 bool "Support SH7705 processor"
183 config CPU_SUBTYPE_SH7706
184 bool "Support SH7706 processor"
187 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
189 config CPU_SUBTYPE_SH7707
190 bool "Support SH7707 processor"
193 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
195 config CPU_SUBTYPE_SH7708
196 bool "Support SH7708 processor"
199 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
200 if you have a 100 Mhz SH-3 HD6417708R CPU.
202 config CPU_SUBTYPE_SH7709
203 bool "Support SH7709 processor"
206 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
208 config CPU_SUBTYPE_SH7710
209 bool "Support SH7710 processor"
213 Select SH7710 if you have a SH3-DSP SH7710 CPU.
215 config CPU_SUBTYPE_SH7712
216 bool "Support SH7712 processor"
220 Select SH7712 if you have a SH3-DSP SH7712 CPU.
222 config CPU_SUBTYPE_SH7720
223 bool "Support SH7720 processor"
227 Select SH7720 if you have a SH3-DSP SH7720 CPU.
229 config CPU_SUBTYPE_SH7721
230 bool "Support SH7721 processor"
234 Select SH7721 if you have a SH3-DSP SH7721 CPU.
236 # SH-4 Processor Support
238 config CPU_SUBTYPE_SH7750
239 bool "Support SH7750 processor"
242 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
244 config CPU_SUBTYPE_SH7091
245 bool "Support SH7091 processor"
248 Select SH7091 if you have an SH-4 based Sega device (such as
249 the Dreamcast, Naomi, and Naomi 2).
251 config CPU_SUBTYPE_SH7750R
252 bool "Support SH7750R processor"
255 config CPU_SUBTYPE_SH7750S
256 bool "Support SH7750S processor"
259 config CPU_SUBTYPE_SH7751
260 bool "Support SH7751 processor"
263 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
264 or if you have a HD6417751R CPU.
266 config CPU_SUBTYPE_SH7751R
267 bool "Support SH7751R processor"
270 config CPU_SUBTYPE_SH7760
271 bool "Support SH7760 processor"
274 config CPU_SUBTYPE_SH4_202
275 bool "Support SH4-202 processor"
278 # SH-4A Processor Support
280 config CPU_SUBTYPE_SH7723
281 bool "Support SH7723 processor"
284 select ARCH_SPARSEMEM_ENABLE
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 CTP/PCI-SH03"
453 depends on CPU_SUBTYPE_SH7751
454 select CPU_HAS_IPR_IRQ
455 select SYS_SUPPORTS_PCI
457 CTP/PCI-SH03 is a CPU module computer that is produced
458 by Interface Corporation.
459 More information at <http://www.interface.co.jp>
461 config SH_SECUREEDGE5410
462 bool "SecureEdge5410"
463 depends on CPU_SUBTYPE_SH7751R
464 select CPU_HAS_IPR_IRQ
465 select SYS_SUPPORTS_PCI
467 Select SecureEdge5410 if configuring for a SnapGear SH board.
468 This includes both the OEM SecureEdge products as well as the
473 depends on CPU_SUBTYPE_SH7751R
474 select SYS_SUPPORTS_PCI
477 Select RTS7751R2D if configuring for a Renesas Technology
478 Sales SH-Graphics board.
482 depends on CPU_SUBTYPE_SH7203
486 depends on CPU_SUBTYPE_SH7780
487 select SYS_SUPPORTS_PCI
489 Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
494 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
495 select SYS_SUPPORTS_PCI
500 depends on CPU_SUBTYPE_SH7722
502 Select Migo-R if configuring for the SH7722 Migo-R platform
503 by Renesas System Solutions Asia Pte. Ltd.
507 depends on CPU_SUBTYPE_SH7723
509 Renesas "AP-325RXA" support.
510 Compatible with ALGO SYSTEM CO.,LTD. "AP-320A"
514 depends on CPU_SUBTYPE_SH7763
516 Select SH7763RDP if configuring for a Renesas SH7763
521 depends on CPU_SUBTYPE_SH7705
523 config SH_SH4202_MICRODEV
524 bool "SH4-202 MicroDev"
525 depends on CPU_SUBTYPE_SH4_202
527 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
532 depends on CPU_SUBTYPE_SH7751R
533 select SYS_SUPPORTS_PCI
535 I-O DATA DEVICE, INC. "LANDISK Series" support.
539 depends on CPU_SUBTYPE_SH7751R
540 select CPU_HAS_IPR_IRQ
541 select SYS_SUPPORTS_PCI
543 Select Titan if you are configuring for a Nimble Microsystems
548 depends on CPU_SUBTYPE_SH7706
549 select CPU_HAS_IPR_IRQ
551 Select SHMIN if configuring for the SHMIN board.
555 depends on CPU_SUBTYPE_SH7751R
556 select SYS_SUPPORTS_PCI
558 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
561 bool "SH-X3 Prototype board"
562 depends on CPU_SUBTYPE_SHX3
564 config SH_MAGIC_PANEL_R2
565 bool "Magic Panel R2"
566 depends on CPU_SUBTYPE_SH7720
568 Select Magic Panel R2 if configuring for Magic Panel R2.
571 bool "Hitachi Cayman"
572 depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
573 select SYS_SUPPORTS_PCI
577 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
578 source "arch/sh/boards/renesas/r7780rp/Kconfig"
579 source "arch/sh/boards/renesas/sdk7780/Kconfig"
580 source "arch/sh/boards/magicpanelr2/Kconfig"
582 menu "Timer and clock configuration"
586 prompt "TMU timer support"
587 depends on CPU_SH3 || CPU_SH4
589 select GENERIC_CLOCKEVENTS
591 This enables the use of the TMU as the system timer.
595 prompt "CMT timer support"
596 depends on CPU_SH2 && !CPU_SUBTYPE_MXG
598 This enables the use of the CMT as the system timer.
602 prompt "MTU2 timer support"
605 This enables the use of the MTU2 as the system timer.
609 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
611 default "86" if CPU_SUBTYPE_SH7619
612 default "140" if CPU_SUBTYPE_SH7206
613 default "142" if CPU_SUBTYPE_SH7203
614 default "238" if CPU_SUBTYPE_MXG
618 int "Peripheral clock frequency (in Hz)"
619 default "27000000" if CPU_SUBTYPE_SH7343
620 default "31250000" if CPU_SUBTYPE_SH7619
621 default "32000000" if CPU_SUBTYPE_SH7722
622 default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
623 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
624 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
625 CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
626 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
627 default "66000000" if CPU_SUBTYPE_SH4_202
630 This option is used to specify the peripheral clock frequency.
631 This is necessary for determining the reference clock value on
632 platforms lacking an RTC.
635 int "CPU Mode Pin Setting"
637 default 6 if CPU_SUBTYPE_SH7206
638 default 5 if CPU_SUBTYPE_SH7619
641 MD2 - MD0 pin setting.
643 source "kernel/time/Kconfig"
647 menu "CPU Frequency scaling"
649 source "drivers/cpufreq/Kconfig"
652 tristate "SuperH CPU Frequency driver"
654 select CPU_FREQ_TABLE
656 This adds the cpufreq driver for SuperH. At present, only
657 the SH-4 is supported.
659 For details, take a look at <file:Documentation/cpu-freq>.
665 source "arch/sh/drivers/Kconfig"
672 menu "Kernel features"
674 source kernel/Kconfig.hz
677 bool "kexec system call (EXPERIMENTAL)"
678 depends on SUPERH32 && EXPERIMENTAL
680 kexec is a system call that implements the ability to shutdown your
681 current kernel, and to start another kernel. It is like a reboot
682 but it is independent of the system firmware. And like a reboot
683 you can start any kernel with it, not just Linux.
685 The name comes from the similarity to the exec system call.
687 It is an ongoing process to be certain the hardware in a machine
688 is properly shutdown, so do not be surprised if this code does not
689 initially work for you. It may help to enable device hotplugging
690 support. As of this writing the exact hardware interface is
691 strongly in flux, so no good recommendation can be made.
694 bool "kernel crash dumps (EXPERIMENTAL)"
695 depends on SUPERH32 && EXPERIMENTAL
697 Generate crash dump after being started by kexec.
698 This should be normally only set in special crash dump kernels
699 which are loaded in the main kernel with kexec-tools into
700 a specially reserved region and then later executed after
701 a crash by kdump/kexec. The crash dump kernel must be compiled
702 to a memory address not used by the main kernel using
705 For more details see Documentation/kdump/kdump.txt
708 bool "Symmetric multi-processing support"
709 depends on SYS_SUPPORTS_SMP
710 select USE_GENERIC_SMP_HELPERS
712 This enables support for systems with more than one CPU. If you have
713 a system with only one CPU, like most personal computers, say N. If
714 you have a system with more than one CPU, say Y.
716 If you say N here, the kernel will run on single and multiprocessor
717 machines, but will use only one CPU of a multiprocessor machine. If
718 you say Y here, the kernel will run on many, but not all,
719 singleprocessor machines. On a singleprocessor machine, the kernel
720 will run faster if you say N here.
722 People using multiprocessor machines who say Y here should also say
723 Y to "Enhanced Real Time Clock Support", below.
725 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
726 available at <http://www.tldp.org/docs.html#howto>.
728 If you don't know what to do here, say N.
731 int "Maximum number of CPUs (2-32)"
734 default "4" if CPU_SHX3
737 This allows you to specify the maximum number of CPUs which this
738 kernel will support. The maximum supported value is 32 and the
739 minimum value which makes sense is 2.
741 This is purely to save memory - each supported CPU adds
742 approximately eight kilobytes to the kernel image.
744 source "kernel/Kconfig.preempt"
748 depends on !SMP && SUPERH32
750 This enables support for gUSA (general UserSpace Atomicity).
751 This is the default implementation for both UP and non-ll/sc
752 CPUs, and is used by the libc, amongst others.
754 For additional information, design information can be found
755 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
757 This should only be disabled for special cases where alternate
758 atomicity implementations exist.
761 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
762 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
764 Enabling this option will allow the kernel to implement some
765 atomic operations using a software implemention of load-locked/
766 store-conditional (LLSC). On machines which do not have hardware
767 LLSC, this should be more efficient than the other alternative of
768 disabling insterrupts around the atomic sequence.
774 config ZERO_PAGE_OFFSET
775 hex "Zero page offset"
776 default "0x00004000" if SH_SH03
777 default "0x00010000" if PAGE_SIZE_64KB
778 default "0x00002000" if PAGE_SIZE_8KB
781 This sets the default offset of zero page.
783 config BOOT_LINK_OFFSET
784 hex "Link address offset for booting"
787 This option allows you to set the link address offset of the zImage.
788 This can be useful if you are on a board which has a small amount of
792 bool "Wakeup UBC on startup"
793 depends on CPU_SH4 && !CPU_SH4A
795 Selecting this option will wakeup the User Break Controller (UBC) on
796 startup. Although the UBC is left in an awake state when the processor
797 comes up, some boot loaders misbehave by putting the UBC to sleep in a
798 power saving state, which causes issues with things like ptrace().
803 bool "Default bootloader kernel arguments"
806 string "Initial kernel command string"
807 depends on CMDLINE_BOOL
808 default "console=ttySC1,115200"
814 # Even on SuperH devices which don't have an ISA bus,
815 # this variable helps the PCMCIA modules handle
816 # IRQ requesting properly -- Greg Banks.
818 # Though we're generally not interested in it when
819 # we're not using PCMCIA, so we make it dependent on
820 # PCMCIA outright. -- PFM.
823 depends on PCMCIA && HD6446X_SERIES
825 Find out whether you have ISA slots on your motherboard. ISA is the
826 name of a bus system, i.e. the way the CPU talks to the other stuff
827 inside your box. Other bus systems are PCI, EISA, MicroChannel
828 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
829 newer boards don't support it. If you have ISA, say Y, otherwise N.
834 The Extended Industry Standard Architecture (EISA) bus was
835 developed as an open alternative to the IBM MicroChannel bus.
837 The EISA bus provided some of the features of the IBM MicroChannel
838 bus while maintaining backward compatibility with cards made for
839 the older ISA bus. The EISA bus saw limited use between 1988 and
840 1995 when it was made obsolete by the PCI bus.
842 Say Y here if you are building a kernel for an EISA-based machine.
849 MicroChannel Architecture is found in some IBM PS/2 machines and
850 laptops. It is a bus system similar to PCI or ISA. See
851 <file:Documentation/mca.txt> (and especially the web page given
852 there) before attempting to build an MCA bus kernel.
858 tristate "SuperHyway Bus support"
859 depends on CPU_SUBTYPE_SH4_202
862 bool "Maple Bus support"
863 depends on SH_DREAMCAST
865 The Maple Bus is SEGA's serial communication bus for peripherals
866 on the Dreamcast. Without this bus support you won't be able to
867 get your Dreamcast keyboard etc to work, so most users
868 probably want to say 'Y' here, unless you are only using the
869 Dreamcast with a serial line terminal or a remote network
873 bool "Compact Flash Enabler support"
874 depends on SOLUTION_ENGINE || SH_SH03
876 Compact Flash is a small, removable mass storage device introduced
877 in 1994 originally as a PCMCIA device. If you say `Y' here, you
878 compile in support for Compact Flash devices directly connected to
879 a SuperH processor. A Compact Flash FAQ is available at
880 <http://www.compactflash.org/faqs/faq.htm>.
882 If your board has "Directly Connected" CompactFlash at area 5 or 6,
883 you may want to enable this option. Then, you can use CF as
884 primary IDE drive (only tested for SanDisk).
886 If in doubt, select 'N'.
889 prompt "Compact Flash Connection Area"
890 depends on CF_ENABLER
896 If your board has "Directly Connected" CompactFlash, You should
897 select the area where your CF is connected to.
899 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
900 - "Area6" if it is connected to Area 6 (0x18000000)
902 "Area6" will work for most boards.
911 depends on CF_ENABLER
912 default "0xb8000000" if CF_AREA6
913 default "0xb4000000" if CF_AREA5
915 source "arch/sh/drivers/pci/Kconfig"
917 source "drivers/pci/Kconfig"
919 source "drivers/pcmcia/Kconfig"
921 source "drivers/pci/hotplug/Kconfig"
925 menu "Executable file formats"
927 source "fs/Kconfig.binfmt"
931 menu "Power management options (EXPERIMENTAL)"
932 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
934 config ARCH_SUSPEND_POSSIBLE
938 source kernel/power/Kconfig
944 source "drivers/Kconfig"
948 source "arch/sh/Kconfig.debug"
950 source "security/Kconfig"
952 source "crypto/Kconfig"