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 ARCH_MAY_HAVE_PC_FDC
78 config STACKTRACE_SUPPORT
81 config LOCKDEP_SUPPORT
84 config ARCH_HAS_ILOG2_U32
87 config ARCH_HAS_ILOG2_U64
90 config ARCH_NO_VIRT_TO_BUS
93 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 # SH-5 Processor Support
317 config CPU_SUBTYPE_SH5_101
318 bool "Support SH5-101 processor"
321 config CPU_SUBTYPE_SH5_103
322 bool "Support SH5-103 processor"
326 source "arch/sh/mm/Kconfig"
327 source "arch/sh/Kconfig.cpu"
331 config SOLUTION_ENGINE
334 config SH_SOLUTION_ENGINE
335 bool "SolutionEngine"
336 select SOLUTION_ENGINE
337 select CPU_HAS_IPR_IRQ
338 depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
339 CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
342 Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
343 SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
345 config SH_7206_SOLUTION_ENGINE
346 bool "SolutionEngine7206"
347 select SOLUTION_ENGINE
348 depends on CPU_SUBTYPE_SH7206
350 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
353 config SH_7619_SOLUTION_ENGINE
354 bool "SolutionEngine7619"
355 select SOLUTION_ENGINE
356 depends on CPU_SUBTYPE_SH7619
358 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
361 config SH_7722_SOLUTION_ENGINE
362 bool "SolutionEngine7722"
363 select SOLUTION_ENGINE
364 depends on CPU_SUBTYPE_SH7722
366 Select 7722 SolutionEngine if configuring for a Hitachi SH772
369 config SH_7751_SOLUTION_ENGINE
370 bool "SolutionEngine7751"
371 select SOLUTION_ENGINE
372 select CPU_HAS_IPR_IRQ
373 depends on CPU_SUBTYPE_SH7751
375 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
378 config SH_7780_SOLUTION_ENGINE
379 bool "SolutionEngine7780"
380 select SOLUTION_ENGINE
381 select SYS_SUPPORTS_PCI
382 depends on CPU_SUBTYPE_SH7780
384 Select 7780 SolutionEngine if configuring for a Renesas SH7780
387 config SH_7343_SOLUTION_ENGINE
388 bool "SolutionEngine7343"
389 select SOLUTION_ENGINE
390 depends on CPU_SUBTYPE_SH7343
392 Select 7343 SolutionEngine if configuring for a Hitachi
393 SH7343 (SH-Mobile 3AS) evaluation board.
395 config SH_7751_SYSTEMH
397 depends on CPU_SUBTYPE_SH7751R
399 Select SystemH if you are configuring for a Renesas SystemH
400 7751R evaluation board.
404 select SYS_SUPPORTS_APM_EMULATION
405 select HD6446X_SERIES
406 depends on CPU_SUBTYPE_SH7709
408 Select HP6XX if configuring for a HP jornada HP6xx.
409 More information (hardware only) at
410 <http://www.hp.com/jornada/>.
414 select SYS_SUPPORTS_PCI
415 depends on CPU_SUBTYPE_SH7091
417 Select Dreamcast if configuring for a SEGA Dreamcast.
418 More information at <http://www.linux-sh.org>
421 bool "Interface MPC1211"
422 depends on CPU_SUBTYPE_SH7751 && BROKEN
424 CTP/PCI-SH02 is a CPU module computer that is produced
425 by Interface Corporation.
426 More information at <http://www.interface.co.jp>
429 bool "Interface CTP/PCI-SH03"
430 depends on CPU_SUBTYPE_SH7751
431 select CPU_HAS_IPR_IRQ
432 select SYS_SUPPORTS_PCI
434 CTP/PCI-SH03 is a CPU module computer that is produced
435 by Interface Corporation.
436 More information at <http://www.interface.co.jp>
438 config SH_SECUREEDGE5410
439 bool "SecureEdge5410"
440 depends on CPU_SUBTYPE_SH7751R
441 select CPU_HAS_IPR_IRQ
442 select SYS_SUPPORTS_PCI
444 Select SecureEdge5410 if configuring for a SnapGear SH board.
445 This includes both the OEM SecureEdge products as well as the
449 bool "SH7710-VOIP-GW"
450 depends on CPU_SUBTYPE_SH7710
452 Select this option to build a kernel for the SH7710 based
457 depends on CPU_SUBTYPE_SH7751R
458 select SYS_SUPPORTS_PCI
460 Select RTS7751R2D if configuring for a Renesas Technology
461 Sales SH-Graphics board.
465 depends on CPU_SUBTYPE_SH7780
466 select SYS_SUPPORTS_PCI
468 Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
473 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
474 select SYS_SUPPORTS_PCI
478 depends on CPU_SUBTYPE_SH7722
480 Select Migo-R if configuring for the SH7722 Migo-R platform
481 by Renesas System Solutions Asia Pte. Ltd.
485 depends on CPU_SUBTYPE_SH7705
487 config SH_SH4202_MICRODEV
488 bool "SH4-202 MicroDev"
489 depends on CPU_SUBTYPE_SH4_202
491 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
496 depends on CPU_SUBTYPE_SH7751R
497 select SYS_SUPPORTS_PCI
499 I-O DATA DEVICE, INC. "LANDISK Series" support.
503 depends on CPU_SUBTYPE_SH7751R
504 select CPU_HAS_IPR_IRQ
505 select SYS_SUPPORTS_PCI
507 Select Titan if you are configuring for a Nimble Microsystems
512 depends on CPU_SUBTYPE_SH7706
513 select CPU_HAS_IPR_IRQ
515 Select SHMIN if configuring for the SHMIN board.
519 depends on CPU_SUBTYPE_SH7751R
520 select SYS_SUPPORTS_PCI
522 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
525 bool "SH-X3 Prototype board"
526 depends on CPU_SUBTYPE_SHX3
528 config SH_MAGIC_PANEL_R2
529 bool "Magic Panel R2"
530 depends on CPU_SUBTYPE_SH7720
532 Select Magic Panel R2 if configuring for Magic Panel R2.
535 bool "Hitachi Cayman"
536 depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
537 select SYS_SUPPORTS_PCI
541 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
542 source "arch/sh/boards/renesas/r7780rp/Kconfig"
543 source "arch/sh/boards/renesas/sdk7780/Kconfig"
544 source "arch/sh/boards/magicpanelr2/Kconfig"
546 menu "Timer and clock configuration"
550 prompt "TMU timer support"
551 depends on CPU_SH3 || CPU_SH4
553 select GENERIC_CLOCKEVENTS
555 This enables the use of the TMU as the system timer.
559 prompt "CMT timer support"
562 This enables the use of the CMT as the system timer.
566 prompt "MTU2 timer support"
569 This enables the use of the MTU2 as the system timer.
573 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
575 default "86" if CPU_SUBTYPE_SH7619
576 default "140" if CPU_SUBTYPE_SH7206
580 int "Peripheral clock frequency (in Hz)"
581 default "27000000" if CPU_SUBTYPE_SH7343
582 default "31250000" if CPU_SUBTYPE_SH7619
583 default "32000000" if CPU_SUBTYPE_SH7722
584 default "33333333" if CPU_SUBTYPE_SH7770 || \
585 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
586 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
588 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
589 default "66000000" if CPU_SUBTYPE_SH4_202
592 This option is used to specify the peripheral clock frequency.
593 This is necessary for determining the reference clock value on
594 platforms lacking an RTC.
597 int "CPU Mode Pin Setting"
599 default 6 if CPU_SUBTYPE_SH7206
600 default 5 if CPU_SUBTYPE_SH7619
603 MD2 - MD0 pin setting.
605 source "kernel/time/Kconfig"
609 menu "CPU Frequency scaling"
611 source "drivers/cpufreq/Kconfig"
614 tristate "SuperH CPU Frequency driver"
616 select CPU_FREQ_TABLE
618 This adds the cpufreq driver for SuperH. At present, only
619 the SH-4 is supported.
621 For details, take a look at <file:Documentation/cpu-freq>.
627 source "arch/sh/drivers/Kconfig"
633 depends on SH_MPC1211
635 menu "Kernel features"
637 source kernel/Kconfig.hz
640 bool "kexec system call (EXPERIMENTAL)"
641 depends on EXPERIMENTAL
643 kexec is a system call that implements the ability to shutdown your
644 current kernel, and to start another kernel. It is like a reboot
645 but it is independent of the system firmware. And like a reboot
646 you can start any kernel with it, not just Linux.
648 The name comes from the similarity to the exec system call.
650 It is an ongoing process to be certain the hardware in a machine
651 is properly shutdown, so do not be surprised if this code does not
652 initially work for you. It may help to enable device hotplugging
653 support. As of this writing the exact hardware interface is
654 strongly in flux, so no good recommendation can be made.
657 bool "kernel crash dumps (EXPERIMENTAL)"
658 depends on EXPERIMENTAL
660 Generate crash dump after being started by kexec.
661 This should be normally only set in special crash dump kernels
662 which are loaded in the main kernel with kexec-tools into
663 a specially reserved region and then later executed after
664 a crash by kdump/kexec. The crash dump kernel must be compiled
665 to a memory address not used by the main kernel using
668 For more details see Documentation/kdump/kdump.txt
671 bool "Symmetric multi-processing support"
672 depends on SYS_SUPPORTS_SMP
674 This enables support for systems with more than one CPU. If you have
675 a system with only one CPU, like most personal computers, say N. If
676 you have a system with more than one CPU, say Y.
678 If you say N here, the kernel will run on single and multiprocessor
679 machines, but will use only one CPU of a multiprocessor machine. If
680 you say Y here, the kernel will run on many, but not all,
681 singleprocessor machines. On a singleprocessor machine, the kernel
682 will run faster if you say N here.
684 People using multiprocessor machines who say Y here should also say
685 Y to "Enhanced Real Time Clock Support", below.
687 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
688 available at <http://www.tldp.org/docs.html#howto>.
690 If you don't know what to do here, say N.
693 int "Maximum number of CPUs (2-32)"
696 default "4" if CPU_SHX3
699 This allows you to specify the maximum number of CPUs which this
700 kernel will support. The maximum supported value is 32 and the
701 minimum value which makes sense is 2.
703 This is purely to save memory - each supported CPU adds
704 approximately eight kilobytes to the kernel image.
706 source "kernel/Kconfig.preempt"
710 depends on !SMP && SUPERH32
712 This enables support for gUSA (general UserSpace Atomicity).
713 This is the default implementation for both UP and non-ll/sc
714 CPUs, and is used by the libc, amongst others.
716 For additional information, design information can be found
717 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
719 This should only be disabled for special cases where alternate
720 atomicity implementations exist.
723 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
724 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
726 Enabling this option will allow the kernel to implement some
727 atomic operations using a software implemention of load-locked/
728 store-conditional (LLSC). On machines which do not have hardware
729 LLSC, this should be more efficient than the other alternative of
730 disabling insterrupts around the atomic sequence.
736 config ZERO_PAGE_OFFSET
737 hex "Zero page offset"
738 default "0x00004000" if SH_MPC1211 || SH_SH03
739 default "0x00010000" if PAGE_SIZE_64KB
740 default "0x00002000" if PAGE_SIZE_8KB
743 This sets the default offset of zero page.
745 config BOOT_LINK_OFFSET
746 hex "Link address offset for booting"
749 This option allows you to set the link address offset of the zImage.
750 This can be useful if you are on a board which has a small amount of
754 bool "Wakeup UBC on startup"
755 depends on CPU_SH4 && !CPU_SH4A
757 Selecting this option will wakeup the User Break Controller (UBC) on
758 startup. Although the UBC is left in an awake state when the processor
759 comes up, some boot loaders misbehave by putting the UBC to sleep in a
760 power saving state, which causes issues with things like ptrace().
765 bool "Default bootloader kernel arguments"
768 string "Initial kernel command string"
769 depends on CMDLINE_BOOL
770 default "console=ttySC1,115200"
776 # Even on SuperH devices which don't have an ISA bus,
777 # this variable helps the PCMCIA modules handle
778 # IRQ requesting properly -- Greg Banks.
780 # Though we're generally not interested in it when
781 # we're not using PCMCIA, so we make it dependent on
782 # PCMCIA outright. -- PFM.
785 depends on PCMCIA && HD6446X_SERIES
787 Find out whether you have ISA slots on your motherboard. ISA is the
788 name of a bus system, i.e. the way the CPU talks to the other stuff
789 inside your box. Other bus systems are PCI, EISA, MicroChannel
790 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
791 newer boards don't support it. If you have ISA, say Y, otherwise N.
796 The Extended Industry Standard Architecture (EISA) bus was
797 developed as an open alternative to the IBM MicroChannel bus.
799 The EISA bus provided some of the features of the IBM MicroChannel
800 bus while maintaining backward compatibility with cards made for
801 the older ISA bus. The EISA bus saw limited use between 1988 and
802 1995 when it was made obsolete by the PCI bus.
804 Say Y here if you are building a kernel for an EISA-based machine.
811 MicroChannel Architecture is found in some IBM PS/2 machines and
812 laptops. It is a bus system similar to PCI or ISA. See
813 <file:Documentation/mca.txt> (and especially the web page given
814 there) before attempting to build an MCA bus kernel.
820 tristate "SuperHyway Bus support"
821 depends on CPU_SUBTYPE_SH4_202
824 bool "Maple Bus support"
825 depends on SH_DREAMCAST
827 The Maple Bus is SEGA's serial communication bus for peripherals
828 on the Dreamcast. Without this bus support you won't be able to
829 get your Dreamcast keyboard etc to work, so most users
830 probably want to say 'Y' here, unless you are only using the
831 Dreamcast with a serial line terminal or a remote network
835 bool "Compact Flash Enabler support"
836 depends on SOLUTION_ENGINE || SH_SH03
838 Compact Flash is a small, removable mass storage device introduced
839 in 1994 originally as a PCMCIA device. If you say `Y' here, you
840 compile in support for Compact Flash devices directly connected to
841 a SuperH processor. A Compact Flash FAQ is available at
842 <http://www.compactflash.org/faqs/faq.htm>.
844 If your board has "Directly Connected" CompactFlash at area 5 or 6,
845 you may want to enable this option. Then, you can use CF as
846 primary IDE drive (only tested for SanDisk).
848 If in doubt, select 'N'.
851 prompt "Compact Flash Connection Area"
852 depends on CF_ENABLER
858 If your board has "Directly Connected" CompactFlash, You should
859 select the area where your CF is connected to.
861 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
862 - "Area6" if it is connected to Area 6 (0x18000000)
864 "Area6" will work for most boards.
873 depends on CF_ENABLER
874 default "0xb8000000" if CF_AREA6
875 default "0xb4000000" if CF_AREA5
877 source "arch/sh/drivers/pci/Kconfig"
879 source "drivers/pci/Kconfig"
881 source "drivers/pcmcia/Kconfig"
883 source "drivers/pci/hotplug/Kconfig"
887 menu "Executable file formats"
889 source "fs/Kconfig.binfmt"
893 menu "Power management options (EXPERIMENTAL)"
894 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
896 config ARCH_SUSPEND_POSSIBLE
900 source kernel/power/Kconfig
906 source "drivers/Kconfig"
910 source "arch/sh/Kconfig.debug"
912 source "security/Kconfig"
914 source "crypto/Kconfig"