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
58 config SOLUTION_ENGINE
62 prompt "SuperH system type"
65 config SH_SOLUTION_ENGINE
67 select SOLUTION_ENGINE
69 Select SolutionEngine if configuring for a Hitachi SH7709
70 or SH7750 evaluation board.
72 config SH_7751_SOLUTION_ENGINE
73 bool "SolutionEngine7751"
74 select SOLUTION_ENGINE
75 select CPU_SUBTYPE_SH7751
77 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
80 config SH_7300_SOLUTION_ENGINE
81 bool "SolutionEngine7300"
82 select SOLUTION_ENGINE
83 select CPU_SUBTYPE_SH7300
85 Select 7300 SolutionEngine if configuring for a Hitachi
86 SH7300(SH-Mobile V) evaluation board.
88 config SH_7343_SOLUTION_ENGINE
89 bool "SolutionEngine7343"
90 select SOLUTION_ENGINE
91 select CPU_SUBTYPE_SH7343
93 Select 7343 SolutionEngine if configuring for a Hitachi
94 SH7343 (SH-Mobile 3AS) evaluation board.
96 config SH_73180_SOLUTION_ENGINE
97 bool "SolutionEngine73180"
98 select SOLUTION_ENGINE
99 select CPU_SUBTYPE_SH73180
101 Select 73180 SolutionEngine if configuring for a Hitachi
102 SH73180(SH-Mobile 3) evaluation board.
104 config SH_7751_SYSTEMH
106 select CPU_SUBTYPE_SH7751R
108 Select SystemH if you are configuring for a Renesas SystemH
109 7751R evaluation board.
114 Select HP6XX if configuring for a HP jornada HP6xx.
115 More information (hardware only) at
116 <http://www.hp.com/jornada/>.
121 Select EC3104 if configuring for a system with an Eclipse
122 International EC3104 chip, e.g. the Harris AD2000.
126 select CPU_SUBTYPE_SH7604
128 Select Saturn if configuring for a SEGA Saturn.
132 select CPU_SUBTYPE_SH7091
134 Select Dreamcast if configuring for a SEGA Dreamcast.
136 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
137 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
143 bool "Interface MPC1211"
145 CTP/PCI-SH02 is a CPU module computer that is produced
146 by Interface Corporation.
147 More information at <http://www.interface.co.jp>
150 bool "Interface CTP/PCI-SH03"
152 CTP/PCI-SH03 is a CPU module computer that is produced
153 by Interface Corporation.
154 More information at <http://www.interface.co.jp>
156 config SH_SECUREEDGE5410
157 bool "SecureEdge5410"
158 select CPU_SUBTYPE_SH7751R
160 Select SecureEdge5410 if configuring for a SnapGear SH board.
161 This includes both the OEM SecureEdge products as well as the
164 config SH_HS7751RVOIP
166 select CPU_SUBTYPE_SH7751R
168 Select HS7751RVOIP if configuring for a Renesas Technology
172 bool "SH7710-VOIP-GW"
173 select CPU_SUBTYPE_SH7710
175 Select this option to build a kernel for the SH7710 based
180 select CPU_SUBTYPE_SH7751R
182 Select RTS7751R2D if configuring for a Renesas Technology
183 Sales SH-Graphics board.
187 select CPU_SUBTYPE_SH7780
189 Select R7780RP-1 if configuring for a Renesas Solutions
194 select CPU_SUBTYPE_SH7705
196 config SH_SH4202_MICRODEV
197 bool "SH4-202 MicroDev"
198 select CPU_SUBTYPE_SH4_202
200 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
205 select CPU_SUBTYPE_SH7751R
207 I-O DATA DEVICE, INC. "LANDISK Series" support.
211 select CPU_SUBTYPE_SH7751R
213 Select Titan if you are configuring for a Nimble Microsystems
218 select CPU_SUBTYPE_SH7706
220 Select SHMIN if configuring for the SHMIN board.
222 config SH_7206_SOLUTION_ENGINE
223 bool "SolutionEngine7206"
224 select CPU_SUBTYPE_SH7206
226 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
229 config SH_7619_SOLUTION_ENGINE
230 bool "SolutionEngine7619"
231 select CPU_SUBTYPE_SH7619
233 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
239 "Bare CPU" aka "unknown" means an SH-based system which is not one
240 of the specific ones mentioned above, which means you need to enter
241 all sorts of stuff like CONFIG_MEMORY_START because the config
242 system doesn't already know what it is. You get a machine vector
243 without any platform-specific code in it, so things like the RTC may
246 This option is for the early stages of porting to a new machine.
250 source "arch/sh/mm/Kconfig"
253 bool "Compact Flash Enabler support"
254 depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
256 Compact Flash is a small, removable mass storage device introduced
257 in 1994 originally as a PCMCIA device. If you say `Y' here, you
258 compile in support for Compact Flash devices directly connected to
259 a SuperH processor. A Compact Flash FAQ is available at
260 <http://www.compactflash.org/faqs/faq.htm>.
262 If your board has "Directly Connected" CompactFlash at area 5 or 6,
263 you may want to enable this option. Then, you can use CF as
264 primary IDE drive (only tested for SanDisk).
266 If in doubt, select 'N'.
269 prompt "Compact Flash Connection Area"
270 depends on CF_ENABLER
276 If your board has "Directly Connected" CompactFlash, You should
277 select the area where your CF is connected to.
279 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
280 - "Area6" if it is connected to Area 6 (0x18000000)
282 "Area6" will work for most boards.
291 depends on CF_ENABLER
292 default "0xb8000000" if CF_AREA6
293 default "0xb4000000" if CF_AREA5
295 menu "Processor features"
297 config CPU_LITTLE_ENDIAN
300 Some SuperH machines can be configured for either little or big
301 endian byte order. These modes require different kernels. Say Y if
302 your machine is little endian, N if it's a big endian machine.
309 Selecting this option will enable support for SH processors that
310 have FPU units (ie, SH77xx).
312 This option must be set in order to enable the FPU.
315 bool "FPU emulation support"
316 depends on !SH_FPU && EXPERIMENTAL
319 Selecting this option will enable support for software FPU emulation.
320 Most SH-3 users will want to say Y here, whereas most SH-4 users will
325 default y if SH4AL_DSP || !CPU_SH4
328 Selecting this option will enable support for SH processors that
329 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
331 This option must be set in order to enable the DSP.
338 Selecting this option will allow the Linux kernel to use SH3 on-chip
343 config SH_STORE_QUEUES
344 bool "Support for Store Queues"
347 Selecting this option will enable an in-kernel API for manipulating
348 the store queues integrated in the SH-4 processors.
350 config CPU_HAS_INTEVT
353 config CPU_HAS_PINT_IRQ
356 config CPU_HAS_MASKREG_IRQ
359 config CPU_HAS_INTC2_IRQ
364 depends on CPU_SH3 || CPU_SH4
367 This will enable the use of SR.RB register bank usage. Processors
368 that are lacking this bit must have another method in place for
369 accomplishing what is taken care of by the banked registers.
371 See <file:Documentation/sh/register-banks.txt> for further
372 information on SR.RB and register banking in the kernel in general.
377 depends on !GENERIC_TIME
380 bool "TMU timer support"
381 depends on CPU_SH3 || CPU_SH4
384 This enables the use of the TMU as the system timer.
387 bool "CMT timer support"
391 This enables the use of the CMT as the system timer.
394 bool "MTU2 timer support"
398 This enables the use of the MTU2 as the system timer.
402 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
404 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
406 source "arch/sh/boards/renesas/r7780rp/Kconfig"
409 int "Peripheral clock frequency (in Hz)"
410 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
411 default "31250000" if CPU_SUBTYPE_SH7619
412 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
413 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
415 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
416 default "60000000" if CPU_SUBTYPE_SH7751
417 default "66000000" if CPU_SUBTYPE_SH4_202
419 This option is used to specify the peripheral clock frequency.
420 This is necessary for determining the reference clock value on
421 platforms lacking an RTC.
424 int "CPU Mode Pin Setting"
425 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
429 menu "CPU Frequency scaling"
431 source "drivers/cpufreq/Kconfig"
434 tristate "SuperH CPU Frequency driver"
436 select CPU_FREQ_TABLE
438 This adds the cpufreq driver for SuperH. At present, only
439 the SH-4 is supported.
441 For details, take a look at <file:Documentation/cpu-freq>.
447 source "arch/sh/drivers/dma/Kconfig"
449 source "arch/sh/cchips/Kconfig"
453 depends on SH_MPC1211 || SH_SH03 || \
454 SH_BIGSUR || SOLUTION_ENGINE || \
455 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
457 Use the power-on LED on your machine as a load meter. The exact
458 behavior is platform-dependent, but normally the flash frequency is
459 a hyperbolic function of the 5-minute load average.
465 depends on SH_MPC1211
468 menu "Kernel features"
470 source kernel/Kconfig.hz
473 bool "kexec system call (EXPERIMENTAL)"
474 depends on EXPERIMENTAL
476 kexec is a system call that implements the ability to shutdown your
477 current kernel, and to start another kernel. It is like a reboot
478 but it is independent of the system firmware. And like a reboot
479 you can start any kernel with it, not just Linux.
481 The name comes from the similarity to the exec system call.
483 It is an ongoing process to be certain the hardware in a machine
484 is properly shutdown, so do not be surprised if this code does not
485 initially work for you. It may help to enable device hotplugging
486 support. As of this writing the exact hardware interface is
487 strongly in flux, so no good recommendation can be made.
490 bool "Symmetric multi-processing support"
492 This enables support for systems with more than one CPU. If you have
493 a system with only one CPU, like most personal computers, say N. If
494 you have a system with more than one CPU, say Y.
496 If you say N here, the kernel will run on single and multiprocessor
497 machines, but will use only one CPU of a multiprocessor machine. If
498 you say Y here, the kernel will run on many, but not all,
499 singleprocessor machines. On a singleprocessor machine, the kernel
500 will run faster if you say N here.
502 People using multiprocessor machines who say Y here should also say
503 Y to "Enhanced Real Time Clock Support", below.
505 See also the <file:Documentation/smp.txt>,
506 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
507 at <http://www.tldp.org/docs.html#howto>.
509 If you don't know what to do here, say N.
512 int "Maximum number of CPUs (2-32)"
517 This allows you to specify the maximum number of CPUs which this
518 kernel will support. The maximum supported value is 32 and the
519 minimum value which makes sense is 2.
521 This is purely to save memory - each supported CPU adds
522 approximately eight kilobytes to the kernel image.
524 source "kernel/Kconfig.preempt"
528 depends on CPU_SH3 || CPU_SH4
531 This will enable the use of SR.RB register bank usage. Processors
532 that are lacking this bit must have another method in place for
533 accomplishing what is taken care of by the banked registers.
535 See <file:Documentation/sh/register-banks.txt> for further
536 information on SR.RB and register banking in the kernel in general.
541 depends on NEED_MULTIPLE_NODES
547 config ZERO_PAGE_OFFSET
548 hex "Zero page offset"
549 default "0x00004000" if SH_MPC1211 || SH_SH03
552 This sets the default offset of zero page.
554 config BOOT_LINK_OFFSET
555 hex "Link address offset for booting"
558 This option allows you to set the link address offset of the zImage.
559 This can be useful if you are on a board which has a small amount of
563 bool "Wakeup UBC on startup"
565 Selecting this option will wakeup the User Break Controller (UBC) on
566 startup. Although the UBC is left in an awake state when the processor
567 comes up, some boot loaders misbehave by putting the UBC to sleep in a
568 power saving state, which causes issues with things like ptrace().
573 bool "Default bootloader kernel arguments"
576 string "Initial kernel command string"
577 depends on CMDLINE_BOOL
578 default "console=ttySC1,115200"
584 # Even on SuperH devices which don't have an ISA bus,
585 # this variable helps the PCMCIA modules handle
586 # IRQ requesting properly -- Greg Banks.
588 # Though we're generally not interested in it when
589 # we're not using PCMCIA, so we make it dependent on
590 # PCMCIA outright. -- PFM.
595 Find out whether you have ISA slots on your motherboard. ISA is the
596 name of a bus system, i.e. the way the CPU talks to the other stuff
597 inside your box. Other bus systems are PCI, EISA, MicroChannel
598 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
599 newer boards don't support it. If you have ISA, say Y, otherwise N.
604 The Extended Industry Standard Architecture (EISA) bus was
605 developed as an open alternative to the IBM MicroChannel bus.
607 The EISA bus provided some of the features of the IBM MicroChannel
608 bus while maintaining backward compatibility with cards made for
609 the older ISA bus. The EISA bus saw limited use between 1988 and
610 1995 when it was made obsolete by the PCI bus.
612 Say Y here if you are building a kernel for an EISA-based machine.
619 MicroChannel Architecture is found in some IBM PS/2 machines and
620 laptops. It is a bus system similar to PCI or ISA. See
621 <file:Documentation/mca.txt> (and especially the web page given
622 there) before attempting to build an MCA bus kernel.
628 tristate "SuperHyway Bus support"
629 depends on CPU_SUBTYPE_SH4_202
631 source "arch/sh/drivers/pci/Kconfig"
633 source "drivers/pci/Kconfig"
635 source "drivers/pcmcia/Kconfig"
637 source "drivers/pci/hotplug/Kconfig"
641 menu "Executable file formats"
643 source "fs/Kconfig.binfmt"
647 menu "Power management options (EXPERIMENTAL)"
648 depends on EXPERIMENTAL
650 source kernel/power/Kconfig
653 bool "Advanced Power Management Emulation"
659 source "drivers/Kconfig"
663 source "arch/sh/oprofile/Kconfig"
665 source "arch/sh/Kconfig.debug"
667 source "security/Kconfig"
669 source "crypto/Kconfig"