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 depends on CPU_HAS_DSP
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_MASKREG_IRQ
178 config CPU_HAS_INTC_IRQ
181 config CPU_HAS_INTC2_IRQ
184 config CPU_HAS_IPR_IRQ
189 depends on CPU_SH3 || CPU_SH4
192 This will enable the use of SR.RB register bank usage. Processors
193 that are lacking this bit must have another method in place for
194 accomplishing what is taken care of by the banked registers.
196 See <file:Documentation/sh/register-banks.txt> for further
197 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 select CPU_HAS_IPR_IRQ
216 depends on CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7750
218 Select SolutionEngine if configuring for a Hitachi SH7709
219 or SH7750 evaluation board.
221 config SH_7206_SOLUTION_ENGINE
222 bool "SolutionEngine7206"
223 select SOLUTION_ENGINE
224 depends on CPU_SUBTYPE_SH7206
226 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
229 config SH_7619_SOLUTION_ENGINE
230 bool "SolutionEngine7619"
231 select SOLUTION_ENGINE
232 depends on CPU_SUBTYPE_SH7619
234 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
237 config SH_7722_SOLUTION_ENGINE
238 bool "SolutionEngine7722"
239 select SOLUTION_ENGINE
240 depends on CPU_SUBTYPE_SH7722
242 Select 7722 SolutionEngine if configuring for a Hitachi SH772
245 config SH_7751_SOLUTION_ENGINE
246 bool "SolutionEngine7751"
247 select SOLUTION_ENGINE
248 select CPU_HAS_IPR_IRQ
249 depends on CPU_SUBTYPE_SH7751
251 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
254 config SH_7780_SOLUTION_ENGINE
255 bool "SolutionEngine7780"
256 select SOLUTION_ENGINE
257 select SYS_SUPPORTS_PCI
258 select CPU_HAS_INTC2_IRQ
259 depends on CPU_SUBTYPE_SH7780
261 Select 7780 SolutionEngine if configuring for a Renesas SH7780
264 config SH_7300_SOLUTION_ENGINE
265 bool "SolutionEngine7300"
266 select SOLUTION_ENGINE
267 depends on CPU_SUBTYPE_SH7300
269 Select 7300 SolutionEngine if configuring for a Hitachi
270 SH7300(SH-Mobile V) evaluation board.
272 config SH_7343_SOLUTION_ENGINE
273 bool "SolutionEngine7343"
274 select SOLUTION_ENGINE
275 depends on CPU_SUBTYPE_SH7343
277 Select 7343 SolutionEngine if configuring for a Hitachi
278 SH7343 (SH-Mobile 3AS) evaluation board.
280 config SH_7751_SYSTEMH
282 depends on CPU_SUBTYPE_SH7751R
284 Select SystemH if you are configuring for a Renesas SystemH
285 7751R evaluation board.
289 select SYS_SUPPORTS_APM_EMULATION
290 select HD6446X_SERIES
291 depends on CPU_SUBTYPE_SH7709
293 Select HP6XX if configuring for a HP jornada HP6xx.
294 More information (hardware only) at
295 <http://www.hp.com/jornada/>.
299 select SYS_SUPPORTS_PCI
300 depends on CPU_SUBTYPE_SH7091
302 Select Dreamcast if configuring for a SEGA Dreamcast.
304 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
305 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
308 bool "Interface MPC1211"
309 depends on CPU_SUBTYPE_SH7751 && BROKEN
311 CTP/PCI-SH02 is a CPU module computer that is produced
312 by Interface Corporation.
313 More information at <http://www.interface.co.jp>
316 bool "Interface CTP/PCI-SH03"
317 depends on CPU_SUBTYPE_SH7751 && BROKEN
318 select CPU_HAS_IPR_IRQ
319 select SYS_SUPPORTS_PCI
321 CTP/PCI-SH03 is a CPU module computer that is produced
322 by Interface Corporation.
323 More information at <http://www.interface.co.jp>
325 config SH_SECUREEDGE5410
326 bool "SecureEdge5410"
327 depends on CPU_SUBTYPE_SH7751R
328 select CPU_HAS_IPR_IRQ
329 select SYS_SUPPORTS_PCI
331 Select SecureEdge5410 if configuring for a SnapGear SH board.
332 This includes both the OEM SecureEdge products as well as the
335 config SH_HS7751RVOIP
337 depends on CPU_SUBTYPE_SH7751R
339 Select HS7751RVOIP if configuring for a Renesas Technology
343 bool "SH7710-VOIP-GW"
344 depends on CPU_SUBTYPE_SH7710
346 Select this option to build a kernel for the SH7710 based
351 depends on CPU_SUBTYPE_SH7751R
352 select SYS_SUPPORTS_PCI
354 Select RTS7751R2D if configuring for a Renesas Technology
355 Sales SH-Graphics board.
359 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
360 select SYS_SUPPORTS_PCI
364 depends on CPU_SUBTYPE_SH7705
366 config SH_SH4202_MICRODEV
367 bool "SH4-202 MicroDev"
368 depends on CPU_SUBTYPE_SH4_202
370 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
375 depends on CPU_SUBTYPE_SH7751R
376 select SYS_SUPPORTS_PCI
378 I-O DATA DEVICE, INC. "LANDISK Series" support.
382 depends on CPU_SUBTYPE_SH7751R
383 select CPU_HAS_IPR_IRQ
384 select SYS_SUPPORTS_PCI
386 Select Titan if you are configuring for a Nimble Microsystems
391 depends on CPU_SUBTYPE_SH7706
392 select CPU_HAS_IPR_IRQ
394 Select SHMIN if configuring for the SHMIN board.
398 depends on CPU_SUBTYPE_SH7751R
399 select SYS_SUPPORTS_PCI
401 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
405 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
406 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
407 source "arch/sh/boards/renesas/r7780rp/Kconfig"
409 menu "Timer and clock configuration"
412 bool "TMU timer support"
413 depends on CPU_SH3 || CPU_SH4
415 select GENERIC_CLOCKEVENTS
418 This enables the use of the TMU as the system timer.
421 bool "CMT timer support"
425 This enables the use of the CMT as the system timer.
428 bool "MTU2 timer support"
432 This enables the use of the MTU2 as the system timer.
436 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
437 default "86" if CPU_SUBTYPE_SH7619
438 default "140" if CPU_SUBTYPE_SH7206
442 int "Peripheral clock frequency (in Hz)"
443 default "27000000" if CPU_SUBTYPE_SH7343
444 default "31250000" if CPU_SUBTYPE_SH7619
445 default "32000000" if CPU_SUBTYPE_SH7722
446 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
447 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
449 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
450 default "66000000" if CPU_SUBTYPE_SH4_202
453 This option is used to specify the peripheral clock frequency.
454 This is necessary for determining the reference clock value on
455 platforms lacking an RTC.
458 int "CPU Mode Pin Setting"
459 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
460 default 6 if CPU_SUBTYPE_SH7206
461 default 5 if CPU_SUBTYPE_SH7619
464 MD2 - MD0 pin setting.
466 source "kernel/time/Kconfig"
470 menu "CPU Frequency scaling"
472 source "drivers/cpufreq/Kconfig"
475 tristate "SuperH CPU Frequency driver"
477 select CPU_FREQ_TABLE
479 This adds the cpufreq driver for SuperH. At present, only
480 the SH-4 is supported.
482 For details, take a look at <file:Documentation/cpu-freq>.
488 source "arch/sh/drivers/Kconfig"
494 depends on SH_MPC1211
497 menu "Kernel features"
499 source kernel/Kconfig.hz
502 bool "kexec system call (EXPERIMENTAL)"
503 depends on EXPERIMENTAL
505 kexec is a system call that implements the ability to shutdown your
506 current kernel, and to start another kernel. It is like a reboot
507 but it is independent of the system firmware. And like a reboot
508 you can start any kernel with it, not just Linux.
510 The name comes from the similarity to the exec system call.
512 It is an ongoing process to be certain the hardware in a machine
513 is properly shutdown, so do not be surprised if this code does not
514 initially work for you. It may help to enable device hotplugging
515 support. As of this writing the exact hardware interface is
516 strongly in flux, so no good recommendation can be made.
519 bool "kernel crash dumps (EXPERIMENTAL)"
520 depends on EXPERIMENTAL
522 Generate crash dump after being started by kexec.
523 This should be normally only set in special crash dump kernels
524 which are loaded in the main kernel with kexec-tools into
525 a specially reserved region and then later executed after
526 a crash by kdump/kexec. The crash dump kernel must be compiled
527 to a memory address not used by the main kernel using
530 For more details see Documentation/kdump/kdump.txt
533 bool "Symmetric multi-processing support"
534 depends on SYS_SUPPORTS_SMP
536 This enables support for systems with more than one CPU. If you have
537 a system with only one CPU, like most personal computers, say N. If
538 you have a system with more than one CPU, say Y.
540 If you say N here, the kernel will run on single and multiprocessor
541 machines, but will use only one CPU of a multiprocessor machine. If
542 you say Y here, the kernel will run on many, but not all,
543 singleprocessor machines. On a singleprocessor machine, the kernel
544 will run faster if you say N here.
546 People using multiprocessor machines who say Y here should also say
547 Y to "Enhanced Real Time Clock Support", below.
549 See also the <file:Documentation/smp.txt>,
550 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
551 at <http://www.tldp.org/docs.html#howto>.
553 If you don't know what to do here, say N.
556 int "Maximum number of CPUs (2-32)"
559 default "4" if CPU_SHX3
562 This allows you to specify the maximum number of CPUs which this
563 kernel will support. The maximum supported value is 32 and the
564 minimum value which makes sense is 2.
566 This is purely to save memory - each supported CPU adds
567 approximately eight kilobytes to the kernel image.
569 source "kernel/Kconfig.preempt"
574 depends on NEED_MULTIPLE_NODES
580 config ZERO_PAGE_OFFSET
581 hex "Zero page offset"
582 default "0x00004000" if SH_MPC1211 || SH_SH03
583 default "0x00010000" if PAGE_SIZE_64KB
584 default "0x00002000" if PAGE_SIZE_8KB
587 This sets the default offset of zero page.
589 config BOOT_LINK_OFFSET
590 hex "Link address offset for booting"
593 This option allows you to set the link address offset of the zImage.
594 This can be useful if you are on a board which has a small amount of
598 bool "Wakeup UBC on startup"
601 Selecting this option will wakeup the User Break Controller (UBC) on
602 startup. Although the UBC is left in an awake state when the processor
603 comes up, some boot loaders misbehave by putting the UBC to sleep in a
604 power saving state, which causes issues with things like ptrace().
609 bool "Default bootloader kernel arguments"
612 string "Initial kernel command string"
613 depends on CMDLINE_BOOL
614 default "console=ttySC1,115200"
620 # Even on SuperH devices which don't have an ISA bus,
621 # this variable helps the PCMCIA modules handle
622 # IRQ requesting properly -- Greg Banks.
624 # Though we're generally not interested in it when
625 # we're not using PCMCIA, so we make it dependent on
626 # PCMCIA outright. -- PFM.
629 depends on PCMCIA && HD6446X_SERIES
631 Find out whether you have ISA slots on your motherboard. ISA is the
632 name of a bus system, i.e. the way the CPU talks to the other stuff
633 inside your box. Other bus systems are PCI, EISA, MicroChannel
634 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
635 newer boards don't support it. If you have ISA, say Y, otherwise N.
640 The Extended Industry Standard Architecture (EISA) bus was
641 developed as an open alternative to the IBM MicroChannel bus.
643 The EISA bus provided some of the features of the IBM MicroChannel
644 bus while maintaining backward compatibility with cards made for
645 the older ISA bus. The EISA bus saw limited use between 1988 and
646 1995 when it was made obsolete by the PCI bus.
648 Say Y here if you are building a kernel for an EISA-based machine.
655 MicroChannel Architecture is found in some IBM PS/2 machines and
656 laptops. It is a bus system similar to PCI or ISA. See
657 <file:Documentation/mca.txt> (and especially the web page given
658 there) before attempting to build an MCA bus kernel.
664 tristate "SuperHyway Bus support"
665 depends on CPU_SUBTYPE_SH4_202
668 bool "Compact Flash Enabler support"
669 depends on SOLUTION_ENGINE || SH_SH03
671 Compact Flash is a small, removable mass storage device introduced
672 in 1994 originally as a PCMCIA device. If you say `Y' here, you
673 compile in support for Compact Flash devices directly connected to
674 a SuperH processor. A Compact Flash FAQ is available at
675 <http://www.compactflash.org/faqs/faq.htm>.
677 If your board has "Directly Connected" CompactFlash at area 5 or 6,
678 you may want to enable this option. Then, you can use CF as
679 primary IDE drive (only tested for SanDisk).
681 If in doubt, select 'N'.
684 prompt "Compact Flash Connection Area"
685 depends on CF_ENABLER
691 If your board has "Directly Connected" CompactFlash, You should
692 select the area where your CF is connected to.
694 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
695 - "Area6" if it is connected to Area 6 (0x18000000)
697 "Area6" will work for most boards.
706 depends on CF_ENABLER
707 default "0xb8000000" if CF_AREA6
708 default "0xb4000000" if CF_AREA5
710 source "arch/sh/drivers/pci/Kconfig"
712 source "drivers/pci/Kconfig"
714 source "drivers/pcmcia/Kconfig"
716 source "drivers/pci/hotplug/Kconfig"
720 menu "Executable file formats"
722 source "fs/Kconfig.binfmt"
726 menu "Power management options (EXPERIMENTAL)"
727 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
729 source kernel/power/Kconfig
735 source "drivers/Kconfig"
739 source "arch/sh/oprofile/Kconfig"
741 source "arch/sh/Kconfig.debug"
743 source "security/Kconfig"
745 source "crypto/Kconfig"