2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Linux/SuperH Kernel Configuration"
12 The SuperH is a RISC processor targeted for use in embedded systems
13 and consumer electronics; it was also used in the Sega Dreamcast
14 gaming console. The SuperH port has a home page at
15 <http://www.linux-sh.org/>.
17 config RWSEM_GENERIC_SPINLOCK
21 config RWSEM_XCHGADD_ALGORITHM
24 config GENERIC_FIND_NEXT_BIT
28 config GENERIC_HWEIGHT
32 config GENERIC_HARDIRQS
36 config GENERIC_IRQ_PROBE
40 config GENERIC_CALIBRATE_DELAY
47 config ARCH_MAY_HAVE_PC_FDC
55 prompt "SuperH system type"
58 config SH_SOLUTION_ENGINE
61 Select SolutionEngine if configuring for a Hitachi SH7709
62 or SH7750 evaluation board.
64 config SH_7751_SOLUTION_ENGINE
65 bool "SolutionEngine7751"
66 select CPU_SUBTYPE_SH7751
68 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
71 config SH_7300_SOLUTION_ENGINE
72 bool "SolutionEngine7300"
73 select CPU_SUBTYPE_SH7300
75 Select 7300 SolutionEngine if configuring for a Hitachi SH7300(SH-Mobile V)
78 config SH_73180_SOLUTION_ENGINE
79 bool "SolutionEngine73180"
80 select CPU_SUBTYPE_SH73180
82 Select 73180 SolutionEngine if configuring for a Hitachi SH73180(SH-Mobile 3)
85 config SH_7751_SYSTEMH
87 select CPU_SUBTYPE_SH7751R
89 Select SystemH if you are configuring for a Renesas SystemH
90 7751R evaluation board.
95 config SH_STB1_OVERDRIVE
101 Select HP6XX if configuring for a HP jornada HP6xx.
102 More information (hardware only) at
103 <http://www.hp.com/jornada/>.
108 Select CqREEK if configuring for a CqREEK SH7708 or SH7750.
110 <http://sources.redhat.com/ecos/hardware.html#SuperH>.
115 Select DMIDA if configuring for a DataMyte 4000 Industrial
116 Digital Assistant. More information at <http://www.dmida.com/>.
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/>.
147 select CPU_SUBTYPE_SH7709
149 SH-2000 is a single-board computer based around SH7709A chip
150 intended for embedded applications.
151 It has an Ethernet interface (CS8900A), direct connected
152 Compact Flash socket, three serial ports and PC-104 bus.
153 More information at <http://sh2000.sh-linux.org>.
159 bool "Interface MPC1211"
161 CTP/PCI-SH02 is a CPU module computer that is produced
162 by Interface Corporation.
163 More information at <http://www.interface.co.jp>
166 bool "Interface CTP/PCI-SH03"
168 CTP/PCI-SH03 is a CPU module computer that is produced
169 by Interface Corporation.
170 More information at <http://www.interface.co.jp>
172 config SH_SECUREEDGE5410
173 bool "SecureEdge5410"
174 select CPU_SUBTYPE_SH7751R
176 Select SecureEdge5410 if configuring for a SnapGear SH board.
177 This includes both the OEM SecureEdge products as well as the
180 config SH_HS7751RVOIP
182 select CPU_SUBTYPE_SH7751R
184 Select HS7751RVOIP if configuring for a Renesas Technology
189 select CPU_SUBTYPE_SH7751R
191 Select RTS7751R2D if configuring for a Renesas Technology
192 Sales SH-Graphics board.
196 select CPU_SUBTYPE_SH7780
198 Select R7780RP-1 if configuring for a Renesas Solutions
203 select CPU_SUBTYPE_SH7705
205 config SH_SH4202_MICRODEV
206 bool "SH4-202 MicroDev"
207 select CPU_SUBTYPE_SH4_202
209 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
214 select CPU_SUBTYPE_SH7751R
216 I-O DATA DEVICE, INC. "LANDISK Series" support.
220 select CPU_SUBTYPE_SH7751R
222 Select Titan if you are configuring for a Nimble Microsystems
228 "Bare CPU" aka "unknown" means an SH-based system which is not one
229 of the specific ones mentioned above, which means you need to enter
230 all sorts of stuff like CONFIG_MEMORY_START because the config
231 system doesn't already know what it is. You get a machine vector
232 without any platform-specific code in it, so things like the RTC may
235 This option is for the early stages of porting to a new machine.
239 source "arch/sh/mm/Kconfig"
242 bool "Compact Flash Enabler support"
243 depends on SH_ADX || SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_CAT68701 || SH_SH03
245 Compact Flash is a small, removable mass storage device introduced
246 in 1994 originally as a PCMCIA device. If you say `Y' here, you
247 compile in support for Compact Flash devices directly connected to
248 a SuperH processor. A Compact Flash FAQ is available at
249 <http://www.compactflash.org/faqs/faq.htm>.
251 If your board has "Directly Connected" CompactFlash at area 5 or 6,
252 you may want to enable this option. Then, you can use CF as
253 primary IDE drive (only tested for SanDisk).
255 If in doubt, select 'N'.
258 prompt "Compact Flash Connection Area"
259 depends on CF_ENABLER
265 If your board has "Directly Connected" CompactFlash, You should
266 select the area where your CF is connected to.
268 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
269 - "Area6" if it is connected to Area 6 (0x18000000)
271 "Area6" will work for most boards. For ADX, select "Area5".
280 depends on CF_ENABLER
281 default "0xb8000000" if CF_AREA6
282 default "0xb4000000" if CF_AREA5
284 menu "Processor features"
286 config CPU_LITTLE_ENDIAN
289 Some SuperH machines can be configured for either little or big
290 endian byte order. These modes require different kernels. Say Y if
291 your machine is little endian, N if it's a big endian machine.
293 # The SH7750 RTC module is disabled in the Dreamcast
296 depends on !SH_DREAMCAST && !SH_SATURN && !SH_7300_SOLUTION_ENGINE && \
297 !SH_73180_SOLUTION_ENGINE && !SH_LANDISK && \
301 Selecting this option will allow the Linux kernel to emulate
311 Selecting this option will enable support for SH processors that
312 have FPU units (ie, SH77xx).
314 This option must be set in order to enable the FPU.
317 bool "FPU emulation support"
318 depends on !SH_FPU && EXPERIMENTAL
321 Selecting this option will enable support for software FPU emulation.
322 Most SH-3 users will want to say Y here, whereas most SH-4 users will
327 default y if SH4AL_DSP || !CPU_SH4
330 Selecting this option will enable support for SH processors that
331 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
333 This option must be set in order to enable the DSP.
340 Selecting this option will allow the Linux kernel to use SH3 on-chip
345 config SH_STORE_QUEUES
346 bool "Support for Store Queues"
349 Selecting this option will enable an in-kernel API for manipulating
350 the store queues integrated in the SH-4 processors.
352 config CPU_HAS_INTEVT
355 config CPU_HAS_PINT_IRQ
358 config CPU_HAS_INTC2_IRQ
363 depends on CPU_SH3 || CPU_SH4
366 This will enable the use of SR.RB register bank usage. Processors
367 that are lacking this bit must have another method in place for
368 accomplishing what is taken care of by the banked registers.
370 See <file:Documentation/sh/register-banks.txt> for further
371 information on SR.RB and register banking in the kernel in general.
378 bool "TMU timer support"
381 This enables the use of the TMU as the system timer.
385 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
387 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
389 source "arch/sh/boards/renesas/r7780rp/Kconfig"
392 int "Peripheral clock frequency (in Hz)"
393 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
394 default "60000000" if CPU_SUBTYPE_SH7751
395 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
397 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
398 default "66000000" if CPU_SUBTYPE_SH4_202
400 This option is used to specify the peripheral clock frequency.
401 This is necessary for determining the reference clock value on
402 platforms lacking an RTC.
404 menu "CPU Frequency scaling"
406 source "drivers/cpufreq/Kconfig"
409 tristate "SuperH CPU Frequency driver"
411 select CPU_FREQ_TABLE
413 This adds the cpufreq driver for SuperH. At present, only
414 the SH-4 is supported.
416 For details, take a look at <file:Documentation/cpu-freq>.
422 source "arch/sh/drivers/dma/Kconfig"
424 source "arch/sh/cchips/Kconfig"
428 depends on SH_MPC1211 || SH_SH03 || SH_CAT68701 || \
429 SH_STB1_HARP || SH_STB1_OVERDRIVE || SH_BIGSUR || \
430 SH_7751_SOLUTION_ENGINE || SH_7300_SOLUTION_ENGINE || \
431 SH_73180_SOLUTION_ENGINE || SH_SOLUTION_ENGINE || \
432 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
434 Use the power-on LED on your machine as a load meter. The exact
435 behavior is platform-dependent, but normally the flash frequency is
436 a hyperbolic function of the 5-minute load average.
442 depends on SH_MPC1211
445 menu "Kernel features"
448 bool "kexec system call (EXPERIMENTAL)"
449 depends on EXPERIMENTAL
451 kexec is a system call that implements the ability to shutdown your
452 current kernel, and to start another kernel. It is like a reboot
453 but it is independent of the system firmware. And like a reboot
454 you can start any kernel with it, not just Linux.
456 The name comes from the similarity to the exec system call.
458 It is an ongoing process to be certain the hardware in a machine
459 is properly shutdown, so do not be surprised if this code does not
460 initially work for you. It may help to enable device hotplugging
461 support. As of this writing the exact hardware interface is
462 strongly in flux, so no good recommendation can be made.
465 bool "Preemptible Kernel (EXPERIMENTAL)"
466 depends on EXPERIMENTAL
469 bool "Symmetric multi-processing support"
471 This enables support for systems with more than one CPU. If you have
472 a system with only one CPU, like most personal computers, say N. If
473 you have a system with more than one CPU, say Y.
475 If you say N here, the kernel will run on single and multiprocessor
476 machines, but will use only one CPU of a multiprocessor machine. If
477 you say Y here, the kernel will run on many, but not all,
478 singleprocessor machines. On a singleprocessor machine, the kernel
479 will run faster if you say N here.
481 People using multiprocessor machines who say Y here should also say
482 Y to "Enhanced Real Time Clock Support", below.
484 See also the <file:Documentation/smp.txt>,
485 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
486 at <http://www.tldp.org/docs.html#howto>.
488 If you don't know what to do here, say N.
491 int "Maximum number of CPUs (2-32)"
496 This allows you to specify the maximum number of CPUs which this
497 kernel will support. The maximum supported value is 32 and the
498 minimum value which makes sense is 2.
500 This is purely to save memory - each supported CPU adds
501 approximately eight kilobytes to the kernel image.
505 depends on CPU_SH3 || CPU_SH4
508 This will enable the use of SR.RB register bank usage. Processors
509 that are lacking this bit must have another method in place for
510 accomplishing what is taken care of by the banked registers.
512 See <file:Documentation/sh/register-banks.txt> for further
513 information on SR.RB and register banking in the kernel in general.
518 depends on NEED_MULTIPLE_NODES
524 config ZERO_PAGE_OFFSET
525 hex "Zero page offset"
526 default "0x00004000" if SH_MPC1211 || SH_SH03
529 This sets the default offset of zero page.
531 config BOOT_LINK_OFFSET
532 hex "Link address offset for booting"
535 This option allows you to set the link address offset of the zImage.
536 This can be useful if you are on a board which has a small amount of
540 bool "Wakeup UBC on startup"
542 Selecting this option will wakeup the User Break Controller (UBC) on
543 startup. Although the UBC is left in an awake state when the processor
544 comes up, some boot loaders misbehave by putting the UBC to sleep in a
545 power saving state, which causes issues with things like ptrace().
550 bool "Default bootloader kernel arguments"
553 string "Initial kernel command string"
554 depends on CMDLINE_BOOL
555 default "console=ttySC1,115200"
561 # Even on SuperH devices which don't have an ISA bus,
562 # this variable helps the PCMCIA modules handle
563 # IRQ requesting properly -- Greg Banks.
565 # Though we're generally not interested in it when
566 # we're not using PCMCIA, so we make it dependent on
567 # PCMCIA outright. -- PFM.
572 Find out whether you have ISA slots on your motherboard. ISA is the
573 name of a bus system, i.e. the way the CPU talks to the other stuff
574 inside your box. Other bus systems are PCI, EISA, MicroChannel
575 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
576 newer boards don't support it. If you have ISA, say Y, otherwise N.
581 The Extended Industry Standard Architecture (EISA) bus was
582 developed as an open alternative to the IBM MicroChannel bus.
584 The EISA bus provided some of the features of the IBM MicroChannel
585 bus while maintaining backward compatibility with cards made for
586 the older ISA bus. The EISA bus saw limited use between 1988 and
587 1995 when it was made obsolete by the PCI bus.
589 Say Y here if you are building a kernel for an EISA-based machine.
596 MicroChannel Architecture is found in some IBM PS/2 machines and
597 laptops. It is a bus system similar to PCI or ISA. See
598 <file:Documentation/mca.txt> (and especially the web page given
599 there) before attempting to build an MCA bus kernel.
605 tristate "SuperHyway Bus support"
606 depends on CPU_SUBTYPE_SH4_202
608 source "arch/sh/drivers/pci/Kconfig"
610 source "drivers/pci/Kconfig"
612 source "drivers/pcmcia/Kconfig"
614 source "drivers/pci/hotplug/Kconfig"
618 menu "Executable file formats"
620 source "fs/Kconfig.binfmt"
624 menu "Power management options (EXPERIMENTAL)"
625 depends on EXPERIMENTAL
627 source kernel/power/Kconfig
630 bool "Advanced Power Management Emulation"
636 source "drivers/Kconfig"
640 source "arch/sh/oprofile/Kconfig"
642 source "arch/sh/Kconfig.debug"
644 source "security/Kconfig"
646 source "crypto/Kconfig"