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
97 source "arch/sh/mm/Kconfig"
99 menu "Processor features"
102 prompt "Endianess selection"
103 default CPU_LITTLE_ENDIAN
105 Some SuperH machines can be configured for either little or big
106 endian byte order. These modes require different kernels.
108 config CPU_LITTLE_ENDIAN
111 config CPU_BIG_ENDIAN
121 Selecting this option will enable support for SH processors that
122 have FPU units (ie, SH77xx).
124 This option must be set in order to enable the FPU.
127 bool "FPU emulation support"
128 depends on !SH_FPU && EXPERIMENTAL
131 Selecting this option will enable support for software FPU emulation.
132 Most SH-3 users will want to say Y here, whereas most SH-4 users will
137 default y if SH4AL_DSP || !CPU_SH4
140 Selecting this option will enable support for SH processors that
141 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
143 This option must be set in order to enable the DSP.
150 Selecting this option will allow the Linux kernel to use SH3 on-chip
155 config SH_STORE_QUEUES
156 bool "Support for Store Queues"
159 Selecting this option will enable an in-kernel API for manipulating
160 the store queues integrated in the SH-4 processors.
162 config SPECULATIVE_EXECUTION
163 bool "Speculative subroutine return"
164 depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
166 This enables support for a speculative instruction fetch for
167 subroutine return. There are various pitfalls associated with
168 this, as outlined in the SH7780 hardware manual.
172 config CPU_HAS_INTEVT
175 config CPU_HAS_PINT_IRQ
178 config CPU_HAS_MASKREG_IRQ
181 config CPU_HAS_INTC_IRQ
184 config CPU_HAS_INTC2_IRQ
187 config CPU_HAS_IPR_IRQ
192 depends on CPU_SH3 || CPU_SH4
195 This will enable the use of SR.RB register bank usage. Processors
196 that are lacking this bit must have another method in place for
197 accomplishing what is taken care of by the banked registers.
199 See <file:Documentation/sh/register-banks.txt> for further
200 information on SR.RB and register banking in the kernel in general.
209 config SOLUTION_ENGINE
212 config SH_SOLUTION_ENGINE
213 bool "SolutionEngine"
214 select SOLUTION_ENGINE
215 depends on CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7750
217 Select SolutionEngine if configuring for a Hitachi SH7709
218 or SH7750 evaluation board.
220 config SH_7206_SOLUTION_ENGINE
221 bool "SolutionEngine7206"
222 select SOLUTION_ENGINE
223 depends on CPU_SUBTYPE_SH7206
225 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
228 config SH_7619_SOLUTION_ENGINE
229 bool "SolutionEngine7619"
230 select SOLUTION_ENGINE
231 depends on CPU_SUBTYPE_SH7619
233 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
236 config SH_7722_SOLUTION_ENGINE
237 bool "SolutionEngine7722"
238 select SOLUTION_ENGINE
239 depends on CPU_SUBTYPE_SH7722
241 Select 7722 SolutionEngine if configuring for a Hitachi SH772
244 config SH_7751_SOLUTION_ENGINE
245 bool "SolutionEngine7751"
246 select SOLUTION_ENGINE
247 depends on CPU_SUBTYPE_SH7751
249 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
252 config SH_7780_SOLUTION_ENGINE
253 bool "SolutionEngine7780"
254 select SOLUTION_ENGINE
255 select SYS_SUPPORTS_PCI
256 depends on CPU_SUBTYPE_SH7780
258 Select 7780 SolutionEngine if configuring for a Renesas SH7780
261 config SH_7300_SOLUTION_ENGINE
262 bool "SolutionEngine7300"
263 select SOLUTION_ENGINE
264 depends on CPU_SUBTYPE_SH7300
266 Select 7300 SolutionEngine if configuring for a Hitachi
267 SH7300(SH-Mobile V) evaluation board.
269 config SH_7343_SOLUTION_ENGINE
270 bool "SolutionEngine7343"
271 select SOLUTION_ENGINE
272 depends on CPU_SUBTYPE_SH7343
274 Select 7343 SolutionEngine if configuring for a Hitachi
275 SH7343 (SH-Mobile 3AS) evaluation board.
277 config SH_73180_SOLUTION_ENGINE
278 bool "SolutionEngine73180"
279 select SOLUTION_ENGINE
280 depends on CPU_SUBTYPE_SH73180
282 Select 73180 SolutionEngine if configuring for a Hitachi
283 SH73180(SH-Mobile 3) evaluation board.
285 config SH_7751_SYSTEMH
287 depends on CPU_SUBTYPE_SH7751R
289 Select SystemH if you are configuring for a Renesas SystemH
290 7751R evaluation board.
294 select SYS_SUPPORTS_APM_EMULATION
295 select HD6446X_SERIES
296 depends on CPU_SUBTYPE_SH7709
298 Select HP6XX if configuring for a HP jornada HP6xx.
299 More information (hardware only) at
300 <http://www.hp.com/jornada/>.
304 select SYS_SUPPORTS_PCI
305 depends on CPU_SUBTYPE_SH7091
307 Select Dreamcast if configuring for a SEGA Dreamcast.
309 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
310 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
313 bool "Interface MPC1211"
314 depends on CPU_SUBTYPE_SH7751 && BROKEN
316 CTP/PCI-SH02 is a CPU module computer that is produced
317 by Interface Corporation.
318 More information at <http://www.interface.co.jp>
321 bool "Interface CTP/PCI-SH03"
322 depends on CPU_SUBTYPE_SH7751 && BROKEN
323 select SYS_SUPPORTS_PCI
325 CTP/PCI-SH03 is a CPU module computer that is produced
326 by Interface Corporation.
327 More information at <http://www.interface.co.jp>
329 config SH_SECUREEDGE5410
330 bool "SecureEdge5410"
331 depends on CPU_SUBTYPE_SH7751R
332 select SYS_SUPPORTS_PCI
334 Select SecureEdge5410 if configuring for a SnapGear SH board.
335 This includes both the OEM SecureEdge products as well as the
338 config SH_HS7751RVOIP
340 depends on CPU_SUBTYPE_SH7751R
342 Select HS7751RVOIP if configuring for a Renesas Technology
346 bool "SH7710-VOIP-GW"
347 depends on CPU_SUBTYPE_SH7710
349 Select this option to build a kernel for the SH7710 based
354 depends on CPU_SUBTYPE_SH7751R
355 select SYS_SUPPORTS_PCI
357 Select RTS7751R2D if configuring for a Renesas Technology
358 Sales SH-Graphics board.
362 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
363 select SYS_SUPPORTS_PCI
367 depends on CPU_SUBTYPE_SH7705
369 config SH_SH4202_MICRODEV
370 bool "SH4-202 MicroDev"
371 depends on CPU_SUBTYPE_SH4_202
373 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
378 depends on CPU_SUBTYPE_SH7751R
379 select SYS_SUPPORTS_PCI
381 I-O DATA DEVICE, INC. "LANDISK Series" support.
385 depends on CPU_SUBTYPE_SH7751R
386 select SYS_SUPPORTS_PCI
388 Select Titan if you are configuring for a Nimble Microsystems
393 depends on CPU_SUBTYPE_SH7706
395 Select SHMIN if configuring for the SHMIN board.
399 depends on CPU_SUBTYPE_SH7751R
400 select SYS_SUPPORTS_PCI
402 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
406 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
407 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
408 source "arch/sh/boards/renesas/r7780rp/Kconfig"
410 menu "Timer and clock configuration"
413 bool "TMU timer support"
414 depends on CPU_SH3 || CPU_SH4
416 select GENERIC_CLOCKEVENTS
419 This enables the use of the TMU as the system timer.
422 bool "CMT timer support"
426 This enables the use of the CMT as the system timer.
429 bool "MTU2 timer support"
433 This enables the use of the MTU2 as the system timer.
437 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
438 default "86" if CPU_SUBTYPE_SH7619
439 default "140" if CPU_SUBTYPE_SH7206
443 int "Peripheral clock frequency (in Hz)"
444 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
445 default "31250000" if CPU_SUBTYPE_SH7619
446 default "32000000" if CPU_SUBTYPE_SH7722
447 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
448 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
450 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
451 default "66000000" if CPU_SUBTYPE_SH4_202
454 This option is used to specify the peripheral clock frequency.
455 This is necessary for determining the reference clock value on
456 platforms lacking an RTC.
459 int "CPU Mode Pin Setting"
460 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
461 default 6 if CPU_SUBTYPE_SH7206
462 default 5 if CPU_SUBTYPE_SH7619
465 MD2 - MD0 pin setting.
467 source "kernel/time/Kconfig"
471 menu "CPU Frequency scaling"
473 source "drivers/cpufreq/Kconfig"
476 tristate "SuperH CPU Frequency driver"
477 depends on CPU_FREQ && CPU_SH4 && BROKEN
478 select CPU_FREQ_TABLE
480 This adds the cpufreq driver for SuperH. At present, only
481 the SH-4 is supported.
483 For details, take a look at <file:Documentation/cpu-freq>.
489 source "arch/sh/drivers/Kconfig"
495 depends on SH_MPC1211
498 menu "Kernel features"
500 source kernel/Kconfig.hz
503 bool "kexec system call (EXPERIMENTAL)"
504 depends on EXPERIMENTAL
506 kexec is a system call that implements the ability to shutdown your
507 current kernel, and to start another kernel. It is like a reboot
508 but it is independent of the system firmware. And like a reboot
509 you can start any kernel with it, not just Linux.
511 The name comes from the similarity to the exec system call.
513 It is an ongoing process to be certain the hardware in a machine
514 is properly shutdown, so do not be surprised if this code does not
515 initially work for you. It may help to enable device hotplugging
516 support. As of this writing the exact hardware interface is
517 strongly in flux, so no good recommendation can be made.
520 bool "kernel crash dumps (EXPERIMENTAL)"
521 depends on EXPERIMENTAL
523 Generate crash dump after being started by kexec.
524 This should be normally only set in special crash dump kernels
525 which are loaded in the main kernel with kexec-tools into
526 a specially reserved region and then later executed after
527 a crash by kdump/kexec. The crash dump kernel must be compiled
528 to a memory address not used by the main kernel using
531 For more details see Documentation/kdump/kdump.txt
534 bool "Symmetric multi-processing support"
535 depends on SYS_SUPPORTS_SMP
537 This enables support for systems with more than one CPU. If you have
538 a system with only one CPU, like most personal computers, say N. If
539 you have a system with more than one CPU, say Y.
541 If you say N here, the kernel will run on single and multiprocessor
542 machines, but will use only one CPU of a multiprocessor machine. If
543 you say Y here, the kernel will run on many, but not all,
544 singleprocessor machines. On a singleprocessor machine, the kernel
545 will run faster if you say N here.
547 People using multiprocessor machines who say Y here should also say
548 Y to "Enhanced Real Time Clock Support", below.
550 See also the <file:Documentation/smp.txt>,
551 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
552 at <http://www.tldp.org/docs.html#howto>.
554 If you don't know what to do here, say N.
557 int "Maximum number of CPUs (2-32)"
560 default "4" if CPU_SHX3
563 This allows you to specify the maximum number of CPUs which this
564 kernel will support. The maximum supported value is 32 and the
565 minimum value which makes sense is 2.
567 This is purely to save memory - each supported CPU adds
568 approximately eight kilobytes to the kernel image.
570 source "kernel/Kconfig.preempt"
575 depends on NEED_MULTIPLE_NODES
581 config ZERO_PAGE_OFFSET
582 hex "Zero page offset"
583 default "0x00004000" if SH_MPC1211 || SH_SH03
584 default "0x00010000" if PAGE_SIZE_64KB
585 default "0x00002000" if PAGE_SIZE_8KB
588 This sets the default offset of zero page.
590 config BOOT_LINK_OFFSET
591 hex "Link address offset for booting"
594 This option allows you to set the link address offset of the zImage.
595 This can be useful if you are on a board which has a small amount of
599 bool "Wakeup UBC on startup"
602 Selecting this option will wakeup the User Break Controller (UBC) on
603 startup. Although the UBC is left in an awake state when the processor
604 comes up, some boot loaders misbehave by putting the UBC to sleep in a
605 power saving state, which causes issues with things like ptrace().
610 bool "Default bootloader kernel arguments"
613 string "Initial kernel command string"
614 depends on CMDLINE_BOOL
615 default "console=ttySC1,115200"
621 # Even on SuperH devices which don't have an ISA bus,
622 # this variable helps the PCMCIA modules handle
623 # IRQ requesting properly -- Greg Banks.
625 # Though we're generally not interested in it when
626 # we're not using PCMCIA, so we make it dependent on
627 # PCMCIA outright. -- PFM.
630 depends on PCMCIA && HD6446X_SERIES
632 Find out whether you have ISA slots on your motherboard. ISA is the
633 name of a bus system, i.e. the way the CPU talks to the other stuff
634 inside your box. Other bus systems are PCI, EISA, MicroChannel
635 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
636 newer boards don't support it. If you have ISA, say Y, otherwise N.
641 The Extended Industry Standard Architecture (EISA) bus was
642 developed as an open alternative to the IBM MicroChannel bus.
644 The EISA bus provided some of the features of the IBM MicroChannel
645 bus while maintaining backward compatibility with cards made for
646 the older ISA bus. The EISA bus saw limited use between 1988 and
647 1995 when it was made obsolete by the PCI bus.
649 Say Y here if you are building a kernel for an EISA-based machine.
656 MicroChannel Architecture is found in some IBM PS/2 machines and
657 laptops. It is a bus system similar to PCI or ISA. See
658 <file:Documentation/mca.txt> (and especially the web page given
659 there) before attempting to build an MCA bus kernel.
665 tristate "SuperHyway Bus support"
666 depends on CPU_SUBTYPE_SH4_202
669 bool "Compact Flash Enabler support"
670 depends on SOLUTION_ENGINE || SH_SH03
672 Compact Flash is a small, removable mass storage device introduced
673 in 1994 originally as a PCMCIA device. If you say `Y' here, you
674 compile in support for Compact Flash devices directly connected to
675 a SuperH processor. A Compact Flash FAQ is available at
676 <http://www.compactflash.org/faqs/faq.htm>.
678 If your board has "Directly Connected" CompactFlash at area 5 or 6,
679 you may want to enable this option. Then, you can use CF as
680 primary IDE drive (only tested for SanDisk).
682 If in doubt, select 'N'.
685 prompt "Compact Flash Connection Area"
686 depends on CF_ENABLER
692 If your board has "Directly Connected" CompactFlash, You should
693 select the area where your CF is connected to.
695 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
696 - "Area6" if it is connected to Area 6 (0x18000000)
698 "Area6" will work for most boards.
707 depends on CF_ENABLER
708 default "0xb8000000" if CF_AREA6
709 default "0xb4000000" if CF_AREA5
711 source "arch/sh/drivers/pci/Kconfig"
713 source "drivers/pci/Kconfig"
715 source "drivers/pcmcia/Kconfig"
717 source "drivers/pci/hotplug/Kconfig"
721 menu "Executable file formats"
723 source "fs/Kconfig.binfmt"
727 menu "Power management options (EXPERIMENTAL)"
728 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
730 source kernel/power/Kconfig
736 source "drivers/Kconfig"
740 source "arch/sh/oprofile/Kconfig"
742 source "arch/sh/Kconfig.debug"
744 source "security/Kconfig"
746 source "crypto/Kconfig"