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_SH7763
280 bool "Support SH7763 processor"
283 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
285 config CPU_SUBTYPE_SH7770
286 bool "Support SH7770 processor"
289 config CPU_SUBTYPE_SH7780
290 bool "Support SH7780 processor"
293 config CPU_SUBTYPE_SH7785
294 bool "Support SH7785 processor"
297 select ARCH_SPARSEMEM_ENABLE
298 select SYS_SUPPORTS_NUMA
300 config CPU_SUBTYPE_SHX3
301 bool "Support SH-X3 processor"
304 select ARCH_SPARSEMEM_ENABLE
305 select SYS_SUPPORTS_NUMA
306 select SYS_SUPPORTS_SMP
308 # SH4AL-DSP Processor Support
310 config CPU_SUBTYPE_SH7343
311 bool "Support SH7343 processor"
314 config CPU_SUBTYPE_SH7722
315 bool "Support SH7722 processor"
318 select ARCH_SPARSEMEM_ENABLE
319 select SYS_SUPPORTS_NUMA
321 config CPU_SUBTYPE_SH7366
322 bool "Support SH7366 processor"
325 select ARCH_SPARSEMEM_ENABLE
326 select SYS_SUPPORTS_NUMA
328 # SH-5 Processor Support
330 config CPU_SUBTYPE_SH5_101
331 bool "Support SH5-101 processor"
334 config CPU_SUBTYPE_SH5_103
335 bool "Support SH5-103 processor"
340 source "arch/sh/mm/Kconfig"
341 source "arch/sh/Kconfig.cpu"
345 config SOLUTION_ENGINE
348 config SH_SOLUTION_ENGINE
349 bool "SolutionEngine"
350 select SOLUTION_ENGINE
351 select CPU_HAS_IPR_IRQ
352 depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
353 CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
356 Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
357 SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
359 config SH_7206_SOLUTION_ENGINE
360 bool "SolutionEngine7206"
361 select SOLUTION_ENGINE
362 depends on CPU_SUBTYPE_SH7206
364 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
367 config SH_7619_SOLUTION_ENGINE
368 bool "SolutionEngine7619"
369 select SOLUTION_ENGINE
370 depends on CPU_SUBTYPE_SH7619
372 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
375 config SH_7722_SOLUTION_ENGINE
376 bool "SolutionEngine7722"
377 select SOLUTION_ENGINE
378 depends on CPU_SUBTYPE_SH7722
380 Select 7722 SolutionEngine if configuring for a Hitachi SH772
383 config SH_7751_SOLUTION_ENGINE
384 bool "SolutionEngine7751"
385 select SOLUTION_ENGINE
386 select CPU_HAS_IPR_IRQ
387 depends on CPU_SUBTYPE_SH7751
389 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
392 config SH_7780_SOLUTION_ENGINE
393 bool "SolutionEngine7780"
394 select SOLUTION_ENGINE
395 select SYS_SUPPORTS_PCI
396 depends on CPU_SUBTYPE_SH7780
398 Select 7780 SolutionEngine if configuring for a Renesas SH7780
401 config SH_7343_SOLUTION_ENGINE
402 bool "SolutionEngine7343"
403 select SOLUTION_ENGINE
404 depends on CPU_SUBTYPE_SH7343
406 Select 7343 SolutionEngine if configuring for a Hitachi
407 SH7343 (SH-Mobile 3AS) evaluation board.
409 config SH_7751_SYSTEMH
411 depends on CPU_SUBTYPE_SH7751R
413 Select SystemH if you are configuring for a Renesas SystemH
414 7751R evaluation board.
418 select SYS_SUPPORTS_APM_EMULATION
419 select HD6446X_SERIES
420 depends on CPU_SUBTYPE_SH7709
422 Select HP6XX if configuring for a HP jornada HP6xx.
423 More information (hardware only) at
424 <http://www.hp.com/jornada/>.
428 select SYS_SUPPORTS_PCI
429 depends on CPU_SUBTYPE_SH7091
431 Select Dreamcast if configuring for a SEGA Dreamcast.
432 More information at <http://www.linux-sh.org>
435 bool "Interface MPC1211"
436 depends on CPU_SUBTYPE_SH7751 && BROKEN
438 CTP/PCI-SH02 is a CPU module computer that is produced
439 by Interface Corporation.
440 More information at <http://www.interface.co.jp>
443 bool "Interface CTP/PCI-SH03"
444 depends on CPU_SUBTYPE_SH7751
445 select CPU_HAS_IPR_IRQ
446 select SYS_SUPPORTS_PCI
448 CTP/PCI-SH03 is a CPU module computer that is produced
449 by Interface Corporation.
450 More information at <http://www.interface.co.jp>
452 config SH_SECUREEDGE5410
453 bool "SecureEdge5410"
454 depends on CPU_SUBTYPE_SH7751R
455 select CPU_HAS_IPR_IRQ
456 select SYS_SUPPORTS_PCI
458 Select SecureEdge5410 if configuring for a SnapGear SH board.
459 This includes both the OEM SecureEdge products as well as the
464 depends on CPU_SUBTYPE_SH7751R
465 select SYS_SUPPORTS_PCI
468 Select RTS7751R2D if configuring for a Renesas Technology
469 Sales SH-Graphics board.
473 depends on CPU_SUBTYPE_SH7780
474 select SYS_SUPPORTS_PCI
476 Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
481 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
482 select SYS_SUPPORTS_PCI
487 depends on CPU_SUBTYPE_SH7722
489 Select Migo-R if configuring for the SH7722 Migo-R platform
490 by Renesas System Solutions Asia Pte. Ltd.
494 depends on CPU_SUBTYPE_SH7705
496 config SH_SH4202_MICRODEV
497 bool "SH4-202 MicroDev"
498 depends on CPU_SUBTYPE_SH4_202
500 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
505 depends on CPU_SUBTYPE_SH7751R
506 select SYS_SUPPORTS_PCI
508 I-O DATA DEVICE, INC. "LANDISK Series" support.
512 depends on CPU_SUBTYPE_SH7751R
513 select CPU_HAS_IPR_IRQ
514 select SYS_SUPPORTS_PCI
516 Select Titan if you are configuring for a Nimble Microsystems
521 depends on CPU_SUBTYPE_SH7706
522 select CPU_HAS_IPR_IRQ
524 Select SHMIN if configuring for the SHMIN board.
528 depends on CPU_SUBTYPE_SH7751R
529 select SYS_SUPPORTS_PCI
531 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
534 bool "SH-X3 Prototype board"
535 depends on CPU_SUBTYPE_SHX3
537 config SH_MAGIC_PANEL_R2
538 bool "Magic Panel R2"
539 depends on CPU_SUBTYPE_SH7720
541 Select Magic Panel R2 if configuring for Magic Panel R2.
544 bool "Hitachi Cayman"
545 depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
546 select SYS_SUPPORTS_PCI
550 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
551 source "arch/sh/boards/renesas/r7780rp/Kconfig"
552 source "arch/sh/boards/renesas/sdk7780/Kconfig"
553 source "arch/sh/boards/magicpanelr2/Kconfig"
555 menu "Timer and clock configuration"
559 prompt "TMU timer support"
560 depends on CPU_SH3 || CPU_SH4
562 select GENERIC_CLOCKEVENTS
564 This enables the use of the TMU as the system timer.
568 prompt "CMT timer support"
569 depends on CPU_SH2 && !CPU_SUBTYPE_MXG
571 This enables the use of the CMT as the system timer.
575 prompt "MTU2 timer support"
578 This enables the use of the MTU2 as the system timer.
582 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
584 default "86" if CPU_SUBTYPE_SH7619
585 default "140" if CPU_SUBTYPE_SH7206
586 default "142" if CPU_SUBTYPE_SH7203
587 default "238" if CPU_SUBTYPE_MXG
591 int "Peripheral clock frequency (in Hz)"
592 default "27000000" if CPU_SUBTYPE_SH7343
593 default "31250000" if CPU_SUBTYPE_SH7619
594 default "32000000" if CPU_SUBTYPE_SH7722
595 default "33333333" if CPU_SUBTYPE_SH7770 || \
596 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
597 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
598 CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
599 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
600 default "66000000" if CPU_SUBTYPE_SH4_202
603 This option is used to specify the peripheral clock frequency.
604 This is necessary for determining the reference clock value on
605 platforms lacking an RTC.
608 int "CPU Mode Pin Setting"
610 default 6 if CPU_SUBTYPE_SH7206
611 default 5 if CPU_SUBTYPE_SH7619
614 MD2 - MD0 pin setting.
616 source "kernel/time/Kconfig"
620 menu "CPU Frequency scaling"
622 source "drivers/cpufreq/Kconfig"
625 tristate "SuperH CPU Frequency driver"
627 select CPU_FREQ_TABLE
629 This adds the cpufreq driver for SuperH. At present, only
630 the SH-4 is supported.
632 For details, take a look at <file:Documentation/cpu-freq>.
638 source "arch/sh/drivers/Kconfig"
644 depends on SH_MPC1211
646 menu "Kernel features"
648 source kernel/Kconfig.hz
651 bool "kexec system call (EXPERIMENTAL)"
652 depends on EXPERIMENTAL
654 kexec is a system call that implements the ability to shutdown your
655 current kernel, and to start another kernel. It is like a reboot
656 but it is independent of the system firmware. And like a reboot
657 you can start any kernel with it, not just Linux.
659 The name comes from the similarity to the exec system call.
661 It is an ongoing process to be certain the hardware in a machine
662 is properly shutdown, so do not be surprised if this code does not
663 initially work for you. It may help to enable device hotplugging
664 support. As of this writing the exact hardware interface is
665 strongly in flux, so no good recommendation can be made.
668 bool "kernel crash dumps (EXPERIMENTAL)"
669 depends on EXPERIMENTAL
671 Generate crash dump after being started by kexec.
672 This should be normally only set in special crash dump kernels
673 which are loaded in the main kernel with kexec-tools into
674 a specially reserved region and then later executed after
675 a crash by kdump/kexec. The crash dump kernel must be compiled
676 to a memory address not used by the main kernel using
679 For more details see Documentation/kdump/kdump.txt
682 bool "Symmetric multi-processing support"
683 depends on SYS_SUPPORTS_SMP
685 This enables support for systems with more than one CPU. If you have
686 a system with only one CPU, like most personal computers, say N. If
687 you have a system with more than one CPU, say Y.
689 If you say N here, the kernel will run on single and multiprocessor
690 machines, but will use only one CPU of a multiprocessor machine. If
691 you say Y here, the kernel will run on many, but not all,
692 singleprocessor machines. On a singleprocessor machine, the kernel
693 will run faster if you say N here.
695 People using multiprocessor machines who say Y here should also say
696 Y to "Enhanced Real Time Clock Support", below.
698 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
699 available at <http://www.tldp.org/docs.html#howto>.
701 If you don't know what to do here, say N.
704 int "Maximum number of CPUs (2-32)"
707 default "4" if CPU_SHX3
710 This allows you to specify the maximum number of CPUs which this
711 kernel will support. The maximum supported value is 32 and the
712 minimum value which makes sense is 2.
714 This is purely to save memory - each supported CPU adds
715 approximately eight kilobytes to the kernel image.
717 source "kernel/Kconfig.preempt"
721 depends on !SMP && SUPERH32
723 This enables support for gUSA (general UserSpace Atomicity).
724 This is the default implementation for both UP and non-ll/sc
725 CPUs, and is used by the libc, amongst others.
727 For additional information, design information can be found
728 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
730 This should only be disabled for special cases where alternate
731 atomicity implementations exist.
734 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
735 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
737 Enabling this option will allow the kernel to implement some
738 atomic operations using a software implemention of load-locked/
739 store-conditional (LLSC). On machines which do not have hardware
740 LLSC, this should be more efficient than the other alternative of
741 disabling insterrupts around the atomic sequence.
747 config ZERO_PAGE_OFFSET
748 hex "Zero page offset"
749 default "0x00004000" if SH_MPC1211 || SH_SH03
750 default "0x00010000" if PAGE_SIZE_64KB
751 default "0x00002000" if PAGE_SIZE_8KB
754 This sets the default offset of zero page.
756 config BOOT_LINK_OFFSET
757 hex "Link address offset for booting"
760 This option allows you to set the link address offset of the zImage.
761 This can be useful if you are on a board which has a small amount of
765 bool "Wakeup UBC on startup"
766 depends on CPU_SH4 && !CPU_SH4A
768 Selecting this option will wakeup the User Break Controller (UBC) on
769 startup. Although the UBC is left in an awake state when the processor
770 comes up, some boot loaders misbehave by putting the UBC to sleep in a
771 power saving state, which causes issues with things like ptrace().
776 bool "Default bootloader kernel arguments"
779 string "Initial kernel command string"
780 depends on CMDLINE_BOOL
781 default "console=ttySC1,115200"
787 # Even on SuperH devices which don't have an ISA bus,
788 # this variable helps the PCMCIA modules handle
789 # IRQ requesting properly -- Greg Banks.
791 # Though we're generally not interested in it when
792 # we're not using PCMCIA, so we make it dependent on
793 # PCMCIA outright. -- PFM.
796 depends on PCMCIA && HD6446X_SERIES
798 Find out whether you have ISA slots on your motherboard. ISA is the
799 name of a bus system, i.e. the way the CPU talks to the other stuff
800 inside your box. Other bus systems are PCI, EISA, MicroChannel
801 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
802 newer boards don't support it. If you have ISA, say Y, otherwise N.
807 The Extended Industry Standard Architecture (EISA) bus was
808 developed as an open alternative to the IBM MicroChannel bus.
810 The EISA bus provided some of the features of the IBM MicroChannel
811 bus while maintaining backward compatibility with cards made for
812 the older ISA bus. The EISA bus saw limited use between 1988 and
813 1995 when it was made obsolete by the PCI bus.
815 Say Y here if you are building a kernel for an EISA-based machine.
822 MicroChannel Architecture is found in some IBM PS/2 machines and
823 laptops. It is a bus system similar to PCI or ISA. See
824 <file:Documentation/mca.txt> (and especially the web page given
825 there) before attempting to build an MCA bus kernel.
831 tristate "SuperHyway Bus support"
832 depends on CPU_SUBTYPE_SH4_202
835 bool "Maple Bus support"
836 depends on SH_DREAMCAST
838 The Maple Bus is SEGA's serial communication bus for peripherals
839 on the Dreamcast. Without this bus support you won't be able to
840 get your Dreamcast keyboard etc to work, so most users
841 probably want to say 'Y' here, unless you are only using the
842 Dreamcast with a serial line terminal or a remote network
846 bool "Compact Flash Enabler support"
847 depends on SOLUTION_ENGINE || SH_SH03
849 Compact Flash is a small, removable mass storage device introduced
850 in 1994 originally as a PCMCIA device. If you say `Y' here, you
851 compile in support for Compact Flash devices directly connected to
852 a SuperH processor. A Compact Flash FAQ is available at
853 <http://www.compactflash.org/faqs/faq.htm>.
855 If your board has "Directly Connected" CompactFlash at area 5 or 6,
856 you may want to enable this option. Then, you can use CF as
857 primary IDE drive (only tested for SanDisk).
859 If in doubt, select 'N'.
862 prompt "Compact Flash Connection Area"
863 depends on CF_ENABLER
869 If your board has "Directly Connected" CompactFlash, You should
870 select the area where your CF is connected to.
872 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
873 - "Area6" if it is connected to Area 6 (0x18000000)
875 "Area6" will work for most boards.
884 depends on CF_ENABLER
885 default "0xb8000000" if CF_AREA6
886 default "0xb4000000" if CF_AREA5
888 source "arch/sh/drivers/pci/Kconfig"
890 source "drivers/pci/Kconfig"
892 source "drivers/pcmcia/Kconfig"
894 source "drivers/pci/hotplug/Kconfig"
898 menu "Executable file formats"
900 source "fs/Kconfig.binfmt"
904 menu "Power management options (EXPERIMENTAL)"
905 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
907 config ARCH_SUSPEND_POSSIBLE
911 source kernel/power/Kconfig
917 source "drivers/Kconfig"
921 source "arch/sh/Kconfig.debug"
923 source "security/Kconfig"
925 source "crypto/Kconfig"