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.
225 "Bare CPU" aka "unknown" means an SH-based system which is not one
226 of the specific ones mentioned above, which means you need to enter
227 all sorts of stuff like CONFIG_MEMORY_START because the config
228 system doesn't already know what it is. You get a machine vector
229 without any platform-specific code in it, so things like the RTC may
232 This option is for the early stages of porting to a new machine.
236 source "arch/sh/mm/Kconfig"
239 bool "Compact Flash Enabler support"
240 depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
242 Compact Flash is a small, removable mass storage device introduced
243 in 1994 originally as a PCMCIA device. If you say `Y' here, you
244 compile in support for Compact Flash devices directly connected to
245 a SuperH processor. A Compact Flash FAQ is available at
246 <http://www.compactflash.org/faqs/faq.htm>.
248 If your board has "Directly Connected" CompactFlash at area 5 or 6,
249 you may want to enable this option. Then, you can use CF as
250 primary IDE drive (only tested for SanDisk).
252 If in doubt, select 'N'.
255 prompt "Compact Flash Connection Area"
256 depends on CF_ENABLER
262 If your board has "Directly Connected" CompactFlash, You should
263 select the area where your CF is connected to.
265 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
266 - "Area6" if it is connected to Area 6 (0x18000000)
268 "Area6" will work for most boards.
277 depends on CF_ENABLER
278 default "0xb8000000" if CF_AREA6
279 default "0xb4000000" if CF_AREA5
281 menu "Processor features"
283 config CPU_LITTLE_ENDIAN
286 Some SuperH machines can be configured for either little or big
287 endian byte order. These modes require different kernels. Say Y if
288 your machine is little endian, N if it's a big endian machine.
295 Selecting this option will enable support for SH processors that
296 have FPU units (ie, SH77xx).
298 This option must be set in order to enable the FPU.
301 bool "FPU emulation support"
302 depends on !SH_FPU && EXPERIMENTAL
305 Selecting this option will enable support for software FPU emulation.
306 Most SH-3 users will want to say Y here, whereas most SH-4 users will
311 default y if SH4AL_DSP || !CPU_SH4
314 Selecting this option will enable support for SH processors that
315 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
317 This option must be set in order to enable the DSP.
324 Selecting this option will allow the Linux kernel to use SH3 on-chip
329 config SH_STORE_QUEUES
330 bool "Support for Store Queues"
333 Selecting this option will enable an in-kernel API for manipulating
334 the store queues integrated in the SH-4 processors.
336 config CPU_HAS_INTEVT
339 config CPU_HAS_PINT_IRQ
342 config CPU_HAS_MASKREG_IRQ
345 config CPU_HAS_INTC2_IRQ
350 depends on CPU_SH3 || CPU_SH4
353 This will enable the use of SR.RB register bank usage. Processors
354 that are lacking this bit must have another method in place for
355 accomplishing what is taken care of by the banked registers.
357 See <file:Documentation/sh/register-banks.txt> for further
358 information on SR.RB and register banking in the kernel in general.
363 depends on !GENERIC_TIME
366 bool "TMU timer support"
369 This enables the use of the TMU as the system timer.
373 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
375 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
377 source "arch/sh/boards/renesas/r7780rp/Kconfig"
380 int "Peripheral clock frequency (in Hz)"
381 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
382 default "60000000" if CPU_SUBTYPE_SH7751
383 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
384 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705
385 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
386 default "66000000" if CPU_SUBTYPE_SH4_202
388 This option is used to specify the peripheral clock frequency.
389 This is necessary for determining the reference clock value on
390 platforms lacking an RTC.
392 menu "CPU Frequency scaling"
394 source "drivers/cpufreq/Kconfig"
397 tristate "SuperH CPU Frequency driver"
399 select CPU_FREQ_TABLE
401 This adds the cpufreq driver for SuperH. At present, only
402 the SH-4 is supported.
404 For details, take a look at <file:Documentation/cpu-freq>.
410 source "arch/sh/drivers/dma/Kconfig"
412 source "arch/sh/cchips/Kconfig"
416 depends on SH_MPC1211 || SH_SH03 || \
417 SH_BIGSUR || SOLUTION_ENGINE || \
418 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
420 Use the power-on LED on your machine as a load meter. The exact
421 behavior is platform-dependent, but normally the flash frequency is
422 a hyperbolic function of the 5-minute load average.
428 depends on SH_MPC1211
431 menu "Kernel features"
433 source kernel/Kconfig.hz
436 bool "kexec system call (EXPERIMENTAL)"
437 depends on EXPERIMENTAL
439 kexec is a system call that implements the ability to shutdown your
440 current kernel, and to start another kernel. It is like a reboot
441 but it is independent of the system firmware. And like a reboot
442 you can start any kernel with it, not just Linux.
444 The name comes from the similarity to the exec system call.
446 It is an ongoing process to be certain the hardware in a machine
447 is properly shutdown, so do not be surprised if this code does not
448 initially work for you. It may help to enable device hotplugging
449 support. As of this writing the exact hardware interface is
450 strongly in flux, so no good recommendation can be made.
453 bool "Symmetric multi-processing support"
455 This enables support for systems with more than one CPU. If you have
456 a system with only one CPU, like most personal computers, say N. If
457 you have a system with more than one CPU, say Y.
459 If you say N here, the kernel will run on single and multiprocessor
460 machines, but will use only one CPU of a multiprocessor machine. If
461 you say Y here, the kernel will run on many, but not all,
462 singleprocessor machines. On a singleprocessor machine, the kernel
463 will run faster if you say N here.
465 People using multiprocessor machines who say Y here should also say
466 Y to "Enhanced Real Time Clock Support", below.
468 See also the <file:Documentation/smp.txt>,
469 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
470 at <http://www.tldp.org/docs.html#howto>.
472 If you don't know what to do here, say N.
475 int "Maximum number of CPUs (2-32)"
480 This allows you to specify the maximum number of CPUs which this
481 kernel will support. The maximum supported value is 32 and the
482 minimum value which makes sense is 2.
484 This is purely to save memory - each supported CPU adds
485 approximately eight kilobytes to the kernel image.
487 source "kernel/Kconfig.preempt"
491 depends on CPU_SH3 || CPU_SH4
494 This will enable the use of SR.RB register bank usage. Processors
495 that are lacking this bit must have another method in place for
496 accomplishing what is taken care of by the banked registers.
498 See <file:Documentation/sh/register-banks.txt> for further
499 information on SR.RB and register banking in the kernel in general.
504 depends on NEED_MULTIPLE_NODES
510 config ZERO_PAGE_OFFSET
511 hex "Zero page offset"
512 default "0x00004000" if SH_MPC1211 || SH_SH03
515 This sets the default offset of zero page.
517 config BOOT_LINK_OFFSET
518 hex "Link address offset for booting"
521 This option allows you to set the link address offset of the zImage.
522 This can be useful if you are on a board which has a small amount of
526 bool "Wakeup UBC on startup"
528 Selecting this option will wakeup the User Break Controller (UBC) on
529 startup. Although the UBC is left in an awake state when the processor
530 comes up, some boot loaders misbehave by putting the UBC to sleep in a
531 power saving state, which causes issues with things like ptrace().
536 bool "Default bootloader kernel arguments"
539 string "Initial kernel command string"
540 depends on CMDLINE_BOOL
541 default "console=ttySC1,115200"
547 # Even on SuperH devices which don't have an ISA bus,
548 # this variable helps the PCMCIA modules handle
549 # IRQ requesting properly -- Greg Banks.
551 # Though we're generally not interested in it when
552 # we're not using PCMCIA, so we make it dependent on
553 # PCMCIA outright. -- PFM.
558 Find out whether you have ISA slots on your motherboard. ISA is the
559 name of a bus system, i.e. the way the CPU talks to the other stuff
560 inside your box. Other bus systems are PCI, EISA, MicroChannel
561 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
562 newer boards don't support it. If you have ISA, say Y, otherwise N.
567 The Extended Industry Standard Architecture (EISA) bus was
568 developed as an open alternative to the IBM MicroChannel bus.
570 The EISA bus provided some of the features of the IBM MicroChannel
571 bus while maintaining backward compatibility with cards made for
572 the older ISA bus. The EISA bus saw limited use between 1988 and
573 1995 when it was made obsolete by the PCI bus.
575 Say Y here if you are building a kernel for an EISA-based machine.
582 MicroChannel Architecture is found in some IBM PS/2 machines and
583 laptops. It is a bus system similar to PCI or ISA. See
584 <file:Documentation/mca.txt> (and especially the web page given
585 there) before attempting to build an MCA bus kernel.
591 tristate "SuperHyway Bus support"
592 depends on CPU_SUBTYPE_SH4_202
594 source "arch/sh/drivers/pci/Kconfig"
596 source "drivers/pci/Kconfig"
598 source "drivers/pcmcia/Kconfig"
600 source "drivers/pci/hotplug/Kconfig"
604 menu "Executable file formats"
606 source "fs/Kconfig.binfmt"
610 menu "Power management options (EXPERIMENTAL)"
611 depends on EXPERIMENTAL
613 source kernel/power/Kconfig
616 bool "Advanced Power Management Emulation"
622 source "drivers/Kconfig"
626 source "arch/sh/oprofile/Kconfig"
628 source "arch/sh/Kconfig.debug"
630 source "security/Kconfig"
632 source "crypto/Kconfig"