2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Linux/SuperH Kernel Configuration"
13 The SuperH is a RISC processor targeted for use in embedded systems
14 and consumer electronics; it was also used in the Sega Dreamcast
15 gaming console. The SuperH port has a home page at
16 <http://www.linux-sh.org/>.
18 config RWSEM_GENERIC_SPINLOCK
22 config RWSEM_XCHGADD_ALGORITHM
29 config GENERIC_FIND_NEXT_BIT
33 config GENERIC_HWEIGHT
37 config GENERIC_HARDIRQS
41 config GENERIC_IRQ_PROBE
45 config GENERIC_CALIBRATE_DELAY
55 config GENERIC_CLOCKEVENTS
58 config SYS_SUPPORTS_PM
61 config SYS_SUPPORTS_APM_EMULATION
63 select SYS_SUPPORTS_PM
65 config SYS_SUPPORTS_SMP
68 config SYS_SUPPORTS_NUMA
71 config SYS_SUPPORTS_PCI
74 config ARCH_MAY_HAVE_PC_FDC
77 config STACKTRACE_SUPPORT
81 config LOCKDEP_SUPPORT
85 config ARCH_HAS_ILOG2_U32
89 config ARCH_HAS_ILOG2_U64
93 config ARCH_NO_VIRT_TO_BUS
100 source "arch/sh/mm/Kconfig"
102 menu "Processor features"
105 prompt "Endianess selection"
106 default CPU_LITTLE_ENDIAN
108 Some SuperH machines can be configured for either little or big
109 endian byte order. These modes require different kernels.
111 config CPU_LITTLE_ENDIAN
114 config CPU_BIG_ENDIAN
124 Selecting this option will enable support for SH processors that
125 have FPU units (ie, SH77xx).
127 This option must be set in order to enable the FPU.
130 bool "FPU emulation support"
131 depends on !SH_FPU && EXPERIMENTAL
134 Selecting this option will enable support for software FPU emulation.
135 Most SH-3 users will want to say Y here, whereas most SH-4 users will
140 depends on CPU_HAS_DSP
143 Selecting this option will enable support for SH processors that
144 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
146 This option must be set in order to enable the DSP.
153 Selecting this option will allow the Linux kernel to use SH3 on-chip
158 config SH_STORE_QUEUES
159 bool "Support for Store Queues"
162 Selecting this option will enable an in-kernel API for manipulating
163 the store queues integrated in the SH-4 processors.
165 config SPECULATIVE_EXECUTION
166 bool "Speculative subroutine return"
167 depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
169 This enables support for a speculative instruction fetch for
170 subroutine return. There are various pitfalls associated with
171 this, as outlined in the SH7780 hardware manual.
175 config CPU_HAS_INTEVT
178 config CPU_HAS_MASKREG_IRQ
181 config CPU_HAS_IPR_IRQ
186 depends on CPU_SH3 || CPU_SH4
189 This will enable the use of SR.RB register bank usage. Processors
190 that are lacking this bit must have another method in place for
191 accomplishing what is taken care of by the banked registers.
193 See <file:Documentation/sh/register-banks.txt> for further
194 information on SR.RB and register banking in the kernel in general.
206 config SOLUTION_ENGINE
209 config SH_SOLUTION_ENGINE
210 bool "SolutionEngine"
211 select SOLUTION_ENGINE
212 select CPU_HAS_IPR_IRQ
213 depends on CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7750
215 Select SolutionEngine if configuring for a Hitachi SH7709
216 or SH7750 evaluation board.
218 config SH_7206_SOLUTION_ENGINE
219 bool "SolutionEngine7206"
220 select SOLUTION_ENGINE
221 depends on CPU_SUBTYPE_SH7206
223 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
226 config SH_7619_SOLUTION_ENGINE
227 bool "SolutionEngine7619"
228 select SOLUTION_ENGINE
229 depends on CPU_SUBTYPE_SH7619
231 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
234 config SH_7722_SOLUTION_ENGINE
235 bool "SolutionEngine7722"
236 select SOLUTION_ENGINE
237 depends on CPU_SUBTYPE_SH7722
239 Select 7722 SolutionEngine if configuring for a Hitachi SH772
242 config SH_7751_SOLUTION_ENGINE
243 bool "SolutionEngine7751"
244 select SOLUTION_ENGINE
245 select CPU_HAS_IPR_IRQ
246 depends on CPU_SUBTYPE_SH7751
248 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
251 config SH_7780_SOLUTION_ENGINE
252 bool "SolutionEngine7780"
253 select SOLUTION_ENGINE
254 select SYS_SUPPORTS_PCI
255 depends on CPU_SUBTYPE_SH7780
257 Select 7780 SolutionEngine if configuring for a Renesas SH7780
260 config SH_7343_SOLUTION_ENGINE
261 bool "SolutionEngine7343"
262 select SOLUTION_ENGINE
263 depends on CPU_SUBTYPE_SH7343
265 Select 7343 SolutionEngine if configuring for a Hitachi
266 SH7343 (SH-Mobile 3AS) evaluation board.
268 config SH_7751_SYSTEMH
270 depends on CPU_SUBTYPE_SH7751R
272 Select SystemH if you are configuring for a Renesas SystemH
273 7751R evaluation board.
277 select SYS_SUPPORTS_APM_EMULATION
278 select HD6446X_SERIES
279 depends on CPU_SUBTYPE_SH7709
281 Select HP6XX if configuring for a HP jornada HP6xx.
282 More information (hardware only) at
283 <http://www.hp.com/jornada/>.
287 select SYS_SUPPORTS_PCI
288 depends on CPU_SUBTYPE_SH7091
290 Select Dreamcast if configuring for a SEGA Dreamcast.
292 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
293 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
296 bool "Interface MPC1211"
297 depends on CPU_SUBTYPE_SH7751 && BROKEN
299 CTP/PCI-SH02 is a CPU module computer that is produced
300 by Interface Corporation.
301 More information at <http://www.interface.co.jp>
304 bool "Interface CTP/PCI-SH03"
305 depends on CPU_SUBTYPE_SH7751
306 select CPU_HAS_IPR_IRQ
307 select SYS_SUPPORTS_PCI
309 CTP/PCI-SH03 is a CPU module computer that is produced
310 by Interface Corporation.
311 More information at <http://www.interface.co.jp>
313 config SH_SECUREEDGE5410
314 bool "SecureEdge5410"
315 depends on CPU_SUBTYPE_SH7751R
316 select CPU_HAS_IPR_IRQ
317 select SYS_SUPPORTS_PCI
319 Select SecureEdge5410 if configuring for a SnapGear SH board.
320 This includes both the OEM SecureEdge products as well as the
323 config SH_HS7751RVOIP
325 depends on CPU_SUBTYPE_SH7751R
327 Select HS7751RVOIP if configuring for a Renesas Technology
331 bool "SH7710-VOIP-GW"
332 depends on CPU_SUBTYPE_SH7710
334 Select this option to build a kernel for the SH7710 based
339 depends on CPU_SUBTYPE_SH7751R
340 select SYS_SUPPORTS_PCI
342 Select RTS7751R2D if configuring for a Renesas Technology
343 Sales SH-Graphics board.
347 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
348 select SYS_SUPPORTS_PCI
352 depends on CPU_SUBTYPE_SH7705
354 config SH_SH4202_MICRODEV
355 bool "SH4-202 MicroDev"
356 depends on CPU_SUBTYPE_SH4_202
358 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
363 depends on CPU_SUBTYPE_SH7751R
364 select SYS_SUPPORTS_PCI
366 I-O DATA DEVICE, INC. "LANDISK Series" support.
370 depends on CPU_SUBTYPE_SH7751R
371 select CPU_HAS_IPR_IRQ
372 select SYS_SUPPORTS_PCI
374 Select Titan if you are configuring for a Nimble Microsystems
379 depends on CPU_SUBTYPE_SH7706
380 select CPU_HAS_IPR_IRQ
382 Select SHMIN if configuring for the SHMIN board.
386 depends on CPU_SUBTYPE_SH7751R
387 select SYS_SUPPORTS_PCI
389 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
392 bool "SH-X3 Prototype board"
393 depends on CPU_SUBTYPE_SHX3
397 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
398 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
399 source "arch/sh/boards/renesas/r7780rp/Kconfig"
401 menu "Timer and clock configuration"
404 bool "TMU timer support"
405 depends on CPU_SH3 || CPU_SH4
407 select GENERIC_CLOCKEVENTS
410 This enables the use of the TMU as the system timer.
413 bool "CMT timer support"
417 This enables the use of the CMT as the system timer.
420 bool "MTU2 timer support"
424 This enables the use of the MTU2 as the system timer.
428 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
429 default "86" if CPU_SUBTYPE_SH7619
430 default "140" if CPU_SUBTYPE_SH7206
434 int "Peripheral clock frequency (in Hz)"
435 default "27000000" if CPU_SUBTYPE_SH7343
436 default "31250000" if CPU_SUBTYPE_SH7619
437 default "32000000" if CPU_SUBTYPE_SH7722
438 default "33333333" if CPU_SUBTYPE_SH7770 || \
439 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
441 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
442 default "66000000" if CPU_SUBTYPE_SH4_202
445 This option is used to specify the peripheral clock frequency.
446 This is necessary for determining the reference clock value on
447 platforms lacking an RTC.
450 int "CPU Mode Pin Setting"
451 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
452 default 6 if CPU_SUBTYPE_SH7206
453 default 5 if CPU_SUBTYPE_SH7619
456 MD2 - MD0 pin setting.
458 source "kernel/time/Kconfig"
462 menu "CPU Frequency scaling"
464 source "drivers/cpufreq/Kconfig"
467 tristate "SuperH CPU Frequency driver"
469 select CPU_FREQ_TABLE
471 This adds the cpufreq driver for SuperH. At present, only
472 the SH-4 is supported.
474 For details, take a look at <file:Documentation/cpu-freq>.
480 source "arch/sh/drivers/Kconfig"
486 depends on SH_MPC1211
489 menu "Kernel features"
491 source kernel/Kconfig.hz
494 bool "kexec system call (EXPERIMENTAL)"
495 depends on EXPERIMENTAL
497 kexec is a system call that implements the ability to shutdown your
498 current kernel, and to start another kernel. It is like a reboot
499 but it is independent of the system firmware. And like a reboot
500 you can start any kernel with it, not just Linux.
502 The name comes from the similarity to the exec system call.
504 It is an ongoing process to be certain the hardware in a machine
505 is properly shutdown, so do not be surprised if this code does not
506 initially work for you. It may help to enable device hotplugging
507 support. As of this writing the exact hardware interface is
508 strongly in flux, so no good recommendation can be made.
511 bool "kernel crash dumps (EXPERIMENTAL)"
512 depends on EXPERIMENTAL
514 Generate crash dump after being started by kexec.
515 This should be normally only set in special crash dump kernels
516 which are loaded in the main kernel with kexec-tools into
517 a specially reserved region and then later executed after
518 a crash by kdump/kexec. The crash dump kernel must be compiled
519 to a memory address not used by the main kernel using
522 For more details see Documentation/kdump/kdump.txt
525 bool "Symmetric multi-processing support"
526 depends on SYS_SUPPORTS_SMP
528 This enables support for systems with more than one CPU. If you have
529 a system with only one CPU, like most personal computers, say N. If
530 you have a system with more than one CPU, say Y.
532 If you say N here, the kernel will run on single and multiprocessor
533 machines, but will use only one CPU of a multiprocessor machine. If
534 you say Y here, the kernel will run on many, but not all,
535 singleprocessor machines. On a singleprocessor machine, the kernel
536 will run faster if you say N here.
538 People using multiprocessor machines who say Y here should also say
539 Y to "Enhanced Real Time Clock Support", below.
541 See also the <file:Documentation/smp.txt>,
542 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
543 at <http://www.tldp.org/docs.html#howto>.
545 If you don't know what to do here, say N.
548 int "Maximum number of CPUs (2-32)"
551 default "4" if CPU_SHX3
554 This allows you to specify the maximum number of CPUs which this
555 kernel will support. The maximum supported value is 32 and the
556 minimum value which makes sense is 2.
558 This is purely to save memory - each supported CPU adds
559 approximately eight kilobytes to the kernel image.
561 source "kernel/Kconfig.preempt"
566 depends on NEED_MULTIPLE_NODES
572 config ZERO_PAGE_OFFSET
573 hex "Zero page offset"
574 default "0x00004000" if SH_MPC1211 || SH_SH03
575 default "0x00010000" if PAGE_SIZE_64KB
576 default "0x00002000" if PAGE_SIZE_8KB
579 This sets the default offset of zero page.
581 config BOOT_LINK_OFFSET
582 hex "Link address offset for booting"
585 This option allows you to set the link address offset of the zImage.
586 This can be useful if you are on a board which has a small amount of
590 bool "Wakeup UBC on startup"
593 Selecting this option will wakeup the User Break Controller (UBC) on
594 startup. Although the UBC is left in an awake state when the processor
595 comes up, some boot loaders misbehave by putting the UBC to sleep in a
596 power saving state, which causes issues with things like ptrace().
601 bool "Default bootloader kernel arguments"
604 string "Initial kernel command string"
605 depends on CMDLINE_BOOL
606 default "console=ttySC1,115200"
612 # Even on SuperH devices which don't have an ISA bus,
613 # this variable helps the PCMCIA modules handle
614 # IRQ requesting properly -- Greg Banks.
616 # Though we're generally not interested in it when
617 # we're not using PCMCIA, so we make it dependent on
618 # PCMCIA outright. -- PFM.
621 depends on PCMCIA && HD6446X_SERIES
623 Find out whether you have ISA slots on your motherboard. ISA is the
624 name of a bus system, i.e. the way the CPU talks to the other stuff
625 inside your box. Other bus systems are PCI, EISA, MicroChannel
626 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
627 newer boards don't support it. If you have ISA, say Y, otherwise N.
632 The Extended Industry Standard Architecture (EISA) bus was
633 developed as an open alternative to the IBM MicroChannel bus.
635 The EISA bus provided some of the features of the IBM MicroChannel
636 bus while maintaining backward compatibility with cards made for
637 the older ISA bus. The EISA bus saw limited use between 1988 and
638 1995 when it was made obsolete by the PCI bus.
640 Say Y here if you are building a kernel for an EISA-based machine.
647 MicroChannel Architecture is found in some IBM PS/2 machines and
648 laptops. It is a bus system similar to PCI or ISA. See
649 <file:Documentation/mca.txt> (and especially the web page given
650 there) before attempting to build an MCA bus kernel.
656 tristate "SuperHyway Bus support"
657 depends on CPU_SUBTYPE_SH4_202
660 bool "Compact Flash Enabler support"
661 depends on SOLUTION_ENGINE || SH_SH03
663 Compact Flash is a small, removable mass storage device introduced
664 in 1994 originally as a PCMCIA device. If you say `Y' here, you
665 compile in support for Compact Flash devices directly connected to
666 a SuperH processor. A Compact Flash FAQ is available at
667 <http://www.compactflash.org/faqs/faq.htm>.
669 If your board has "Directly Connected" CompactFlash at area 5 or 6,
670 you may want to enable this option. Then, you can use CF as
671 primary IDE drive (only tested for SanDisk).
673 If in doubt, select 'N'.
676 prompt "Compact Flash Connection Area"
677 depends on CF_ENABLER
683 If your board has "Directly Connected" CompactFlash, You should
684 select the area where your CF is connected to.
686 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
687 - "Area6" if it is connected to Area 6 (0x18000000)
689 "Area6" will work for most boards.
698 depends on CF_ENABLER
699 default "0xb8000000" if CF_AREA6
700 default "0xb4000000" if CF_AREA5
702 source "arch/sh/drivers/pci/Kconfig"
704 source "drivers/pci/Kconfig"
706 source "drivers/pcmcia/Kconfig"
708 source "drivers/pci/hotplug/Kconfig"
712 menu "Executable file formats"
714 source "fs/Kconfig.binfmt"
718 menu "Power management options (EXPERIMENTAL)"
719 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
721 source kernel/power/Kconfig
727 source "drivers/Kconfig"
731 source "arch/sh/oprofile/Kconfig"
733 source "arch/sh/Kconfig.debug"
735 source "security/Kconfig"
737 source "crypto/Kconfig"