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
25 config GENERIC_FIND_NEXT_BIT
29 config GENERIC_HWEIGHT
33 config GENERIC_HARDIRQS
37 config GENERIC_IRQ_PROBE
41 config GENERIC_CALIBRATE_DELAY
51 config ARCH_MAY_HAVE_PC_FDC
54 config STACKTRACE_SUPPORT
58 config LOCKDEP_SUPPORT
66 config SOLUTION_ENGINE
70 prompt "SuperH system type"
73 config SH_SOLUTION_ENGINE
75 select SOLUTION_ENGINE
77 Select SolutionEngine if configuring for a Hitachi SH7709
78 or SH7750 evaluation board.
80 config SH_7751_SOLUTION_ENGINE
81 bool "SolutionEngine7751"
82 select SOLUTION_ENGINE
83 select CPU_SUBTYPE_SH7751
85 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
88 config SH_7300_SOLUTION_ENGINE
89 bool "SolutionEngine7300"
90 select SOLUTION_ENGINE
91 select CPU_SUBTYPE_SH7300
93 Select 7300 SolutionEngine if configuring for a Hitachi
94 SH7300(SH-Mobile V) evaluation board.
96 config SH_7343_SOLUTION_ENGINE
97 bool "SolutionEngine7343"
98 select SOLUTION_ENGINE
99 select CPU_SUBTYPE_SH7343
101 Select 7343 SolutionEngine if configuring for a Hitachi
102 SH7343 (SH-Mobile 3AS) evaluation board.
104 config SH_73180_SOLUTION_ENGINE
105 bool "SolutionEngine73180"
106 select SOLUTION_ENGINE
107 select CPU_SUBTYPE_SH73180
109 Select 73180 SolutionEngine if configuring for a Hitachi
110 SH73180(SH-Mobile 3) evaluation board.
112 config SH_7751_SYSTEMH
114 select CPU_SUBTYPE_SH7751R
116 Select SystemH if you are configuring for a Renesas SystemH
117 7751R evaluation board.
122 Select HP6XX if configuring for a HP jornada HP6xx.
123 More information (hardware only) at
124 <http://www.hp.com/jornada/>.
129 Select EC3104 if configuring for a system with an Eclipse
130 International EC3104 chip, e.g. the Harris AD2000.
134 select CPU_SUBTYPE_SH7604
136 Select Saturn if configuring for a SEGA Saturn.
140 select CPU_SUBTYPE_SH7091
142 Select Dreamcast if configuring for a SEGA Dreamcast.
144 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
145 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
151 bool "Interface MPC1211"
153 CTP/PCI-SH02 is a CPU module computer that is produced
154 by Interface Corporation.
155 More information at <http://www.interface.co.jp>
158 bool "Interface CTP/PCI-SH03"
160 CTP/PCI-SH03 is a CPU module computer that is produced
161 by Interface Corporation.
162 More information at <http://www.interface.co.jp>
164 config SH_SECUREEDGE5410
165 bool "SecureEdge5410"
166 select CPU_SUBTYPE_SH7751R
168 Select SecureEdge5410 if configuring for a SnapGear SH board.
169 This includes both the OEM SecureEdge products as well as the
172 config SH_HS7751RVOIP
174 select CPU_SUBTYPE_SH7751R
176 Select HS7751RVOIP if configuring for a Renesas Technology
180 bool "SH7710-VOIP-GW"
181 select CPU_SUBTYPE_SH7710
183 Select this option to build a kernel for the SH7710 based
188 select CPU_SUBTYPE_SH7751R
190 Select RTS7751R2D if configuring for a Renesas Technology
191 Sales SH-Graphics board.
195 select CPU_SUBTYPE_SH7780
197 Select R7780RP-1 if configuring for a Renesas Solutions
202 select CPU_SUBTYPE_SH7705
204 config SH_SH4202_MICRODEV
205 bool "SH4-202 MicroDev"
206 select CPU_SUBTYPE_SH4_202
208 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
213 select CPU_SUBTYPE_SH7751R
215 I-O DATA DEVICE, INC. "LANDISK Series" support.
219 select CPU_SUBTYPE_SH7751R
221 Select Titan if you are configuring for a Nimble Microsystems
226 select CPU_SUBTYPE_SH7706
228 Select SHMIN if configuring for the SHMIN board.
230 config SH_7206_SOLUTION_ENGINE
231 bool "SolutionEngine7206"
232 select CPU_SUBTYPE_SH7206
234 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
237 config SH_7619_SOLUTION_ENGINE
238 bool "SolutionEngine7619"
239 select CPU_SUBTYPE_SH7619
241 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
247 "Bare CPU" aka "unknown" means an SH-based system which is not one
248 of the specific ones mentioned above, which means you need to enter
249 all sorts of stuff like CONFIG_MEMORY_START because the config
250 system doesn't already know what it is. You get a machine vector
251 without any platform-specific code in it, so things like the RTC may
254 This option is for the early stages of porting to a new machine.
258 source "arch/sh/mm/Kconfig"
261 bool "Compact Flash Enabler support"
262 depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
264 Compact Flash is a small, removable mass storage device introduced
265 in 1994 originally as a PCMCIA device. If you say `Y' here, you
266 compile in support for Compact Flash devices directly connected to
267 a SuperH processor. A Compact Flash FAQ is available at
268 <http://www.compactflash.org/faqs/faq.htm>.
270 If your board has "Directly Connected" CompactFlash at area 5 or 6,
271 you may want to enable this option. Then, you can use CF as
272 primary IDE drive (only tested for SanDisk).
274 If in doubt, select 'N'.
277 prompt "Compact Flash Connection Area"
278 depends on CF_ENABLER
284 If your board has "Directly Connected" CompactFlash, You should
285 select the area where your CF is connected to.
287 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
288 - "Area6" if it is connected to Area 6 (0x18000000)
290 "Area6" will work for most boards.
299 depends on CF_ENABLER
300 default "0xb8000000" if CF_AREA6
301 default "0xb4000000" if CF_AREA5
303 menu "Processor features"
306 prompt "Endianess selection"
307 default CPU_LITTLE_ENDIAN
309 Some SuperH machines can be configured for either little or big
310 endian byte order. These modes require different kernels.
312 config CPU_LITTLE_ENDIAN
315 config CPU_BIG_ENDIAN
325 Selecting this option will enable support for SH processors that
326 have FPU units (ie, SH77xx).
328 This option must be set in order to enable the FPU.
331 bool "FPU emulation support"
332 depends on !SH_FPU && EXPERIMENTAL
335 Selecting this option will enable support for software FPU emulation.
336 Most SH-3 users will want to say Y here, whereas most SH-4 users will
341 default y if SH4AL_DSP || !CPU_SH4
344 Selecting this option will enable support for SH processors that
345 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
347 This option must be set in order to enable the DSP.
354 Selecting this option will allow the Linux kernel to use SH3 on-chip
359 config SH_STORE_QUEUES
360 bool "Support for Store Queues"
363 Selecting this option will enable an in-kernel API for manipulating
364 the store queues integrated in the SH-4 processors.
366 config CPU_HAS_INTEVT
369 config CPU_HAS_PINT_IRQ
372 config CPU_HAS_MASKREG_IRQ
375 config CPU_HAS_INTC2_IRQ
380 depends on CPU_SH3 || CPU_SH4
383 This will enable the use of SR.RB register bank usage. Processors
384 that are lacking this bit must have another method in place for
385 accomplishing what is taken care of by the banked registers.
387 See <file:Documentation/sh/register-banks.txt> for further
388 information on SR.RB and register banking in the kernel in general.
396 depends on !GENERIC_TIME
399 bool "TMU timer support"
400 depends on CPU_SH3 || CPU_SH4
403 This enables the use of the TMU as the system timer.
406 bool "CMT timer support"
410 This enables the use of the CMT as the system timer.
413 bool "MTU2 timer support"
417 This enables the use of the MTU2 as the system timer.
421 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
423 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
425 source "arch/sh/boards/renesas/r7780rp/Kconfig"
429 default "28" if CPU_SUBTYPE_SH7780
430 default "86" if CPU_SUBTYPE_SH7619
431 default "140" if CPU_SUBTYPE_SH7206
435 bool "Dynamic tick timer"
437 Select this option if you want to disable continuous timer ticks
438 and have them programmed to occur as required. This option saves
439 power as the system can remain in idle state for longer.
441 By default dynamic tick is disabled during the boot, and can be
442 manually enabled with:
444 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
446 Alternatively, if you want dynamic tick automatically enabled
447 during boot, pass "dyntick=enable" via the kernel command string.
449 Please note that dynamic tick may affect the accuracy of
450 timekeeping on some platforms depending on the implementation.
453 int "Peripheral clock frequency (in Hz)"
454 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
455 default "31250000" if CPU_SUBTYPE_SH7619
456 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
457 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
459 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
460 default "60000000" if CPU_SUBTYPE_SH7751
461 default "66000000" if CPU_SUBTYPE_SH4_202
463 This option is used to specify the peripheral clock frequency.
464 This is necessary for determining the reference clock value on
465 platforms lacking an RTC.
468 int "CPU Mode Pin Setting"
469 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
473 menu "CPU Frequency scaling"
475 source "drivers/cpufreq/Kconfig"
478 tristate "SuperH CPU Frequency driver"
480 select CPU_FREQ_TABLE
482 This adds the cpufreq driver for SuperH. At present, only
483 the SH-4 is supported.
485 For details, take a look at <file:Documentation/cpu-freq>.
491 source "arch/sh/drivers/dma/Kconfig"
493 source "arch/sh/cchips/Kconfig"
497 depends on SH_MPC1211 || SH_SH03 || \
498 SH_BIGSUR || SOLUTION_ENGINE || \
499 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
501 Use the power-on LED on your machine as a load meter. The exact
502 behavior is platform-dependent, but normally the flash frequency is
503 a hyperbolic function of the 5-minute load average.
505 source "arch/sh/drivers/Kconfig"
511 depends on SH_MPC1211
514 menu "Kernel features"
516 source kernel/Kconfig.hz
519 bool "kexec system call (EXPERIMENTAL)"
520 depends on EXPERIMENTAL
522 kexec is a system call that implements the ability to shutdown your
523 current kernel, and to start another kernel. It is like a reboot
524 but it is independent of the system firmware. And like a reboot
525 you can start any kernel with it, not just Linux.
527 The name comes from the similarity to the exec system call.
529 It is an ongoing process to be certain the hardware in a machine
530 is properly shutdown, so do not be surprised if this code does not
531 initially work for you. It may help to enable device hotplugging
532 support. As of this writing the exact hardware interface is
533 strongly in flux, so no good recommendation can be made.
536 bool "Symmetric multi-processing support"
538 This enables support for systems with more than one CPU. If you have
539 a system with only one CPU, like most personal computers, say N. If
540 you have a system with more than one CPU, say Y.
542 If you say N here, the kernel will run on single and multiprocessor
543 machines, but will use only one CPU of a multiprocessor machine. If
544 you say Y here, the kernel will run on many, but not all,
545 singleprocessor machines. On a singleprocessor machine, the kernel
546 will run faster if you say N here.
548 People using multiprocessor machines who say Y here should also say
549 Y to "Enhanced Real Time Clock Support", below.
551 See also the <file:Documentation/smp.txt>,
552 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
553 at <http://www.tldp.org/docs.html#howto>.
555 If you don't know what to do here, say N.
558 int "Maximum number of CPUs (2-32)"
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"
574 depends on CPU_SH3 || CPU_SH4
577 This will enable the use of SR.RB register bank usage. Processors
578 that are lacking this bit must have another method in place for
579 accomplishing what is taken care of by the banked registers.
581 See <file:Documentation/sh/register-banks.txt> for further
582 information on SR.RB and register banking in the kernel in general.
587 depends on NEED_MULTIPLE_NODES
593 config ZERO_PAGE_OFFSET
594 hex "Zero page offset"
595 default "0x00004000" if SH_MPC1211 || SH_SH03
598 This sets the default offset of zero page.
600 config BOOT_LINK_OFFSET
601 hex "Link address offset for booting"
604 This option allows you to set the link address offset of the zImage.
605 This can be useful if you are on a board which has a small amount of
609 bool "Wakeup UBC on startup"
611 Selecting this option will wakeup the User Break Controller (UBC) on
612 startup. Although the UBC is left in an awake state when the processor
613 comes up, some boot loaders misbehave by putting the UBC to sleep in a
614 power saving state, which causes issues with things like ptrace().
619 bool "Default bootloader kernel arguments"
622 string "Initial kernel command string"
623 depends on CMDLINE_BOOL
624 default "console=ttySC1,115200"
630 # Even on SuperH devices which don't have an ISA bus,
631 # this variable helps the PCMCIA modules handle
632 # IRQ requesting properly -- Greg Banks.
634 # Though we're generally not interested in it when
635 # we're not using PCMCIA, so we make it dependent on
636 # PCMCIA outright. -- PFM.
641 Find out whether you have ISA slots on your motherboard. ISA is the
642 name of a bus system, i.e. the way the CPU talks to the other stuff
643 inside your box. Other bus systems are PCI, EISA, MicroChannel
644 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
645 newer boards don't support it. If you have ISA, say Y, otherwise N.
650 The Extended Industry Standard Architecture (EISA) bus was
651 developed as an open alternative to the IBM MicroChannel bus.
653 The EISA bus provided some of the features of the IBM MicroChannel
654 bus while maintaining backward compatibility with cards made for
655 the older ISA bus. The EISA bus saw limited use between 1988 and
656 1995 when it was made obsolete by the PCI bus.
658 Say Y here if you are building a kernel for an EISA-based machine.
665 MicroChannel Architecture is found in some IBM PS/2 machines and
666 laptops. It is a bus system similar to PCI or ISA. See
667 <file:Documentation/mca.txt> (and especially the web page given
668 there) before attempting to build an MCA bus kernel.
674 tristate "SuperHyway Bus support"
675 depends on CPU_SUBTYPE_SH4_202
677 source "arch/sh/drivers/pci/Kconfig"
679 source "drivers/pci/Kconfig"
681 source "drivers/pcmcia/Kconfig"
683 source "drivers/pci/hotplug/Kconfig"
687 menu "Executable file formats"
689 source "fs/Kconfig.binfmt"
693 menu "Power management options (EXPERIMENTAL)"
694 depends on EXPERIMENTAL
696 source kernel/power/Kconfig
699 bool "Advanced Power Management Emulation"
705 source "drivers/Kconfig"
709 source "arch/sh/oprofile/Kconfig"
711 source "arch/sh/Kconfig.debug"
713 source "security/Kconfig"
715 source "crypto/Kconfig"