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
48 config ARCH_MAY_HAVE_PC_FDC
55 config SOLUTION_ENGINE
59 prompt "SuperH system type"
62 config SH_SOLUTION_ENGINE
64 select SOLUTION_ENGINE
66 Select SolutionEngine if configuring for a Hitachi SH7709
67 or SH7750 evaluation board.
69 config SH_7751_SOLUTION_ENGINE
70 bool "SolutionEngine7751"
71 select SOLUTION_ENGINE
72 select CPU_SUBTYPE_SH7751
74 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
77 config SH_7300_SOLUTION_ENGINE
78 bool "SolutionEngine7300"
79 select SOLUTION_ENGINE
80 select CPU_SUBTYPE_SH7300
82 Select 7300 SolutionEngine if configuring for a Hitachi
83 SH7300(SH-Mobile V) evaluation board.
85 config SH_7343_SOLUTION_ENGINE
86 bool "SolutionEngine7343"
87 select SOLUTION_ENGINE
88 select CPU_SUBTYPE_SH7343
90 Select 7343 SolutionEngine if configuring for a Hitachi
91 SH7343 (SH-Mobile 3AS) evaluation board.
93 config SH_73180_SOLUTION_ENGINE
94 bool "SolutionEngine73180"
95 select SOLUTION_ENGINE
96 select CPU_SUBTYPE_SH73180
98 Select 73180 SolutionEngine if configuring for a Hitachi
99 SH73180(SH-Mobile 3) evaluation board.
101 config SH_7751_SYSTEMH
103 select CPU_SUBTYPE_SH7751R
105 Select SystemH if you are configuring for a Renesas SystemH
106 7751R evaluation board.
111 Select HP6XX if configuring for a HP jornada HP6xx.
112 More information (hardware only) at
113 <http://www.hp.com/jornada/>.
118 Select EC3104 if configuring for a system with an Eclipse
119 International EC3104 chip, e.g. the Harris AD2000.
123 select CPU_SUBTYPE_SH7604
125 Select Saturn if configuring for a SEGA Saturn.
129 select CPU_SUBTYPE_SH7091
131 Select Dreamcast if configuring for a SEGA Dreamcast.
133 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
134 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
140 bool "Interface MPC1211"
142 CTP/PCI-SH02 is a CPU module computer that is produced
143 by Interface Corporation.
144 More information at <http://www.interface.co.jp>
147 bool "Interface CTP/PCI-SH03"
149 CTP/PCI-SH03 is a CPU module computer that is produced
150 by Interface Corporation.
151 More information at <http://www.interface.co.jp>
153 config SH_SECUREEDGE5410
154 bool "SecureEdge5410"
155 select CPU_SUBTYPE_SH7751R
157 Select SecureEdge5410 if configuring for a SnapGear SH board.
158 This includes both the OEM SecureEdge products as well as the
161 config SH_HS7751RVOIP
163 select CPU_SUBTYPE_SH7751R
165 Select HS7751RVOIP if configuring for a Renesas Technology
169 bool "SH7710-VOIP-GW"
170 select CPU_SUBTYPE_SH7710
172 Select this option to build a kernel for the SH7710 based
177 select CPU_SUBTYPE_SH7751R
179 Select RTS7751R2D if configuring for a Renesas Technology
180 Sales SH-Graphics board.
184 select CPU_SUBTYPE_SH7780
186 Select R7780RP-1 if configuring for a Renesas Solutions
191 select CPU_SUBTYPE_SH7705
193 config SH_SH4202_MICRODEV
194 bool "SH4-202 MicroDev"
195 select CPU_SUBTYPE_SH4_202
197 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
202 select CPU_SUBTYPE_SH7751R
204 I-O DATA DEVICE, INC. "LANDISK Series" support.
208 select CPU_SUBTYPE_SH7751R
210 Select Titan if you are configuring for a Nimble Microsystems
215 select CPU_SUBTYPE_SH7706
217 Select SHMIN if configureing for the SHMIN board
222 "Bare CPU" aka "unknown" means an SH-based system which is not one
223 of the specific ones mentioned above, which means you need to enter
224 all sorts of stuff like CONFIG_MEMORY_START because the config
225 system doesn't already know what it is. You get a machine vector
226 without any platform-specific code in it, so things like the RTC may
229 This option is for the early stages of porting to a new machine.
233 source "arch/sh/mm/Kconfig"
236 bool "Compact Flash Enabler support"
237 depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
239 Compact Flash is a small, removable mass storage device introduced
240 in 1994 originally as a PCMCIA device. If you say `Y' here, you
241 compile in support for Compact Flash devices directly connected to
242 a SuperH processor. A Compact Flash FAQ is available at
243 <http://www.compactflash.org/faqs/faq.htm>.
245 If your board has "Directly Connected" CompactFlash at area 5 or 6,
246 you may want to enable this option. Then, you can use CF as
247 primary IDE drive (only tested for SanDisk).
249 If in doubt, select 'N'.
252 prompt "Compact Flash Connection Area"
253 depends on CF_ENABLER
259 If your board has "Directly Connected" CompactFlash, You should
260 select the area where your CF is connected to.
262 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
263 - "Area6" if it is connected to Area 6 (0x18000000)
265 "Area6" will work for most boards.
274 depends on CF_ENABLER
275 default "0xb8000000" if CF_AREA6
276 default "0xb4000000" if CF_AREA5
278 menu "Processor features"
280 config CPU_LITTLE_ENDIAN
283 Some SuperH machines can be configured for either little or big
284 endian byte order. These modes require different kernels. Say Y if
285 your machine is little endian, N if it's a big endian machine.
292 Selecting this option will enable support for SH processors that
293 have FPU units (ie, SH77xx).
295 This option must be set in order to enable the FPU.
298 bool "FPU emulation support"
299 depends on !SH_FPU && EXPERIMENTAL
302 Selecting this option will enable support for software FPU emulation.
303 Most SH-3 users will want to say Y here, whereas most SH-4 users will
308 default y if SH4AL_DSP || !CPU_SH4
311 Selecting this option will enable support for SH processors that
312 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
314 This option must be set in order to enable the DSP.
321 Selecting this option will allow the Linux kernel to use SH3 on-chip
326 config SH_STORE_QUEUES
327 bool "Support for Store Queues"
330 Selecting this option will enable an in-kernel API for manipulating
331 the store queues integrated in the SH-4 processors.
333 config CPU_HAS_INTEVT
336 config CPU_HAS_PINT_IRQ
339 config CPU_HAS_MASKREG_IRQ
342 config CPU_HAS_INTC2_IRQ
347 depends on CPU_SH3 || CPU_SH4
350 This will enable the use of SR.RB register bank usage. Processors
351 that are lacking this bit must have another method in place for
352 accomplishing what is taken care of by the banked registers.
354 See <file:Documentation/sh/register-banks.txt> for further
355 information on SR.RB and register banking in the kernel in general.
362 bool "TMU timer support"
365 This enables the use of the TMU as the system timer.
369 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
371 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
373 source "arch/sh/boards/renesas/r7780rp/Kconfig"
376 int "Peripheral clock frequency (in Hz)"
377 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
378 default "60000000" if CPU_SUBTYPE_SH7751
379 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
381 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
382 default "66000000" if CPU_SUBTYPE_SH4_202
384 This option is used to specify the peripheral clock frequency.
385 This is necessary for determining the reference clock value on
386 platforms lacking an RTC.
388 menu "CPU Frequency scaling"
390 source "drivers/cpufreq/Kconfig"
393 tristate "SuperH CPU Frequency driver"
395 select CPU_FREQ_TABLE
397 This adds the cpufreq driver for SuperH. At present, only
398 the SH-4 is supported.
400 For details, take a look at <file:Documentation/cpu-freq>.
406 source "arch/sh/drivers/dma/Kconfig"
408 source "arch/sh/cchips/Kconfig"
412 depends on SH_MPC1211 || SH_SH03 || \
413 SH_BIGSUR || SOLUTION_ENGINE || \
414 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
416 Use the power-on LED on your machine as a load meter. The exact
417 behavior is platform-dependent, but normally the flash frequency is
418 a hyperbolic function of the 5-minute load average.
424 depends on SH_MPC1211
427 menu "Kernel features"
429 source kernel/Kconfig.hz
432 bool "kexec system call (EXPERIMENTAL)"
433 depends on EXPERIMENTAL
435 kexec is a system call that implements the ability to shutdown your
436 current kernel, and to start another kernel. It is like a reboot
437 but it is independent of the system firmware. And like a reboot
438 you can start any kernel with it, not just Linux.
440 The name comes from the similarity to the exec system call.
442 It is an ongoing process to be certain the hardware in a machine
443 is properly shutdown, so do not be surprised if this code does not
444 initially work for you. It may help to enable device hotplugging
445 support. As of this writing the exact hardware interface is
446 strongly in flux, so no good recommendation can be made.
449 bool "Symmetric multi-processing support"
451 This enables support for systems with more than one CPU. If you have
452 a system with only one CPU, like most personal computers, say N. If
453 you have a system with more than one CPU, say Y.
455 If you say N here, the kernel will run on single and multiprocessor
456 machines, but will use only one CPU of a multiprocessor machine. If
457 you say Y here, the kernel will run on many, but not all,
458 singleprocessor machines. On a singleprocessor machine, the kernel
459 will run faster if you say N here.
461 People using multiprocessor machines who say Y here should also say
462 Y to "Enhanced Real Time Clock Support", below.
464 See also the <file:Documentation/smp.txt>,
465 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
466 at <http://www.tldp.org/docs.html#howto>.
468 If you don't know what to do here, say N.
471 int "Maximum number of CPUs (2-32)"
476 This allows you to specify the maximum number of CPUs which this
477 kernel will support. The maximum supported value is 32 and the
478 minimum value which makes sense is 2.
480 This is purely to save memory - each supported CPU adds
481 approximately eight kilobytes to the kernel image.
483 source "kernel/Kconfig.preempt"
487 depends on CPU_SH3 || CPU_SH4
490 This will enable the use of SR.RB register bank usage. Processors
491 that are lacking this bit must have another method in place for
492 accomplishing what is taken care of by the banked registers.
494 See <file:Documentation/sh/register-banks.txt> for further
495 information on SR.RB and register banking in the kernel in general.
500 depends on NEED_MULTIPLE_NODES
506 config ZERO_PAGE_OFFSET
507 hex "Zero page offset"
508 default "0x00004000" if SH_MPC1211 || SH_SH03
511 This sets the default offset of zero page.
513 config BOOT_LINK_OFFSET
514 hex "Link address offset for booting"
517 This option allows you to set the link address offset of the zImage.
518 This can be useful if you are on a board which has a small amount of
522 bool "Wakeup UBC on startup"
524 Selecting this option will wakeup the User Break Controller (UBC) on
525 startup. Although the UBC is left in an awake state when the processor
526 comes up, some boot loaders misbehave by putting the UBC to sleep in a
527 power saving state, which causes issues with things like ptrace().
532 bool "Default bootloader kernel arguments"
535 string "Initial kernel command string"
536 depends on CMDLINE_BOOL
537 default "console=ttySC1,115200"
543 # Even on SuperH devices which don't have an ISA bus,
544 # this variable helps the PCMCIA modules handle
545 # IRQ requesting properly -- Greg Banks.
547 # Though we're generally not interested in it when
548 # we're not using PCMCIA, so we make it dependent on
549 # PCMCIA outright. -- PFM.
554 Find out whether you have ISA slots on your motherboard. ISA is the
555 name of a bus system, i.e. the way the CPU talks to the other stuff
556 inside your box. Other bus systems are PCI, EISA, MicroChannel
557 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
558 newer boards don't support it. If you have ISA, say Y, otherwise N.
563 The Extended Industry Standard Architecture (EISA) bus was
564 developed as an open alternative to the IBM MicroChannel bus.
566 The EISA bus provided some of the features of the IBM MicroChannel
567 bus while maintaining backward compatibility with cards made for
568 the older ISA bus. The EISA bus saw limited use between 1988 and
569 1995 when it was made obsolete by the PCI bus.
571 Say Y here if you are building a kernel for an EISA-based machine.
578 MicroChannel Architecture is found in some IBM PS/2 machines and
579 laptops. It is a bus system similar to PCI or ISA. See
580 <file:Documentation/mca.txt> (and especially the web page given
581 there) before attempting to build an MCA bus kernel.
587 tristate "SuperHyway Bus support"
588 depends on CPU_SUBTYPE_SH4_202
590 source "arch/sh/drivers/pci/Kconfig"
592 source "drivers/pci/Kconfig"
594 source "drivers/pcmcia/Kconfig"
596 source "drivers/pci/hotplug/Kconfig"
600 menu "Executable file formats"
602 source "fs/Kconfig.binfmt"
606 menu "Power management options (EXPERIMENTAL)"
607 depends on EXPERIMENTAL
609 source kernel/power/Kconfig
612 bool "Advanced Power Management Emulation"
618 source "drivers/Kconfig"
622 source "arch/sh/oprofile/Kconfig"
624 source "arch/sh/Kconfig.debug"
626 source "security/Kconfig"
628 source "crypto/Kconfig"