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
227 select CPU_SUBTYPE_SH7706
229 Select SHMIN if configureing for the SHMIN board
234 "Bare CPU" aka "unknown" means an SH-based system which is not one
235 of the specific ones mentioned above, which means you need to enter
236 all sorts of stuff like CONFIG_MEMORY_START because the config
237 system doesn't already know what it is. You get a machine vector
238 without any platform-specific code in it, so things like the RTC may
241 This option is for the early stages of porting to a new machine.
245 source "arch/sh/mm/Kconfig"
248 bool "Compact Flash Enabler support"
249 depends on SH_ADX || SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_CAT68701 || SH_SH03
251 Compact Flash is a small, removable mass storage device introduced
252 in 1994 originally as a PCMCIA device. If you say `Y' here, you
253 compile in support for Compact Flash devices directly connected to
254 a SuperH processor. A Compact Flash FAQ is available at
255 <http://www.compactflash.org/faqs/faq.htm>.
257 If your board has "Directly Connected" CompactFlash at area 5 or 6,
258 you may want to enable this option. Then, you can use CF as
259 primary IDE drive (only tested for SanDisk).
261 If in doubt, select 'N'.
264 prompt "Compact Flash Connection Area"
265 depends on CF_ENABLER
271 If your board has "Directly Connected" CompactFlash, You should
272 select the area where your CF is connected to.
274 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
275 - "Area6" if it is connected to Area 6 (0x18000000)
277 "Area6" will work for most boards. For ADX, select "Area5".
286 depends on CF_ENABLER
287 default "0xb8000000" if CF_AREA6
288 default "0xb4000000" if CF_AREA5
290 menu "Processor features"
292 config CPU_LITTLE_ENDIAN
295 Some SuperH machines can be configured for either little or big
296 endian byte order. These modes require different kernels. Say Y if
297 your machine is little endian, N if it's a big endian machine.
304 Selecting this option will enable support for SH processors that
305 have FPU units (ie, SH77xx).
307 This option must be set in order to enable the FPU.
310 bool "FPU emulation support"
311 depends on !SH_FPU && EXPERIMENTAL
314 Selecting this option will enable support for software FPU emulation.
315 Most SH-3 users will want to say Y here, whereas most SH-4 users will
320 default y if SH4AL_DSP || !CPU_SH4
323 Selecting this option will enable support for SH processors that
324 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
326 This option must be set in order to enable the DSP.
333 Selecting this option will allow the Linux kernel to use SH3 on-chip
338 config SH_STORE_QUEUES
339 bool "Support for Store Queues"
342 Selecting this option will enable an in-kernel API for manipulating
343 the store queues integrated in the SH-4 processors.
345 config CPU_HAS_INTEVT
348 config CPU_HAS_PINT_IRQ
351 config CPU_HAS_INTC2_IRQ
356 depends on CPU_SH3 || CPU_SH4
359 This will enable the use of SR.RB register bank usage. Processors
360 that are lacking this bit must have another method in place for
361 accomplishing what is taken care of by the banked registers.
363 See <file:Documentation/sh/register-banks.txt> for further
364 information on SR.RB and register banking in the kernel in general.
371 bool "TMU timer support"
374 This enables the use of the TMU as the system timer.
378 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
380 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
382 source "arch/sh/boards/renesas/r7780rp/Kconfig"
385 int "Peripheral clock frequency (in Hz)"
386 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
387 default "60000000" if CPU_SUBTYPE_SH7751
388 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
390 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
391 default "66000000" if CPU_SUBTYPE_SH4_202
393 This option is used to specify the peripheral clock frequency.
394 This is necessary for determining the reference clock value on
395 platforms lacking an RTC.
397 menu "CPU Frequency scaling"
399 source "drivers/cpufreq/Kconfig"
402 tristate "SuperH CPU Frequency driver"
404 select CPU_FREQ_TABLE
406 This adds the cpufreq driver for SuperH. At present, only
407 the SH-4 is supported.
409 For details, take a look at <file:Documentation/cpu-freq>.
415 source "arch/sh/drivers/dma/Kconfig"
417 source "arch/sh/cchips/Kconfig"
421 depends on SH_MPC1211 || SH_SH03 || SH_CAT68701 || \
422 SH_STB1_HARP || SH_STB1_OVERDRIVE || SH_BIGSUR || \
423 SH_7751_SOLUTION_ENGINE || SH_7300_SOLUTION_ENGINE || \
424 SH_73180_SOLUTION_ENGINE || SH_SOLUTION_ENGINE || \
425 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
427 Use the power-on LED on your machine as a load meter. The exact
428 behavior is platform-dependent, but normally the flash frequency is
429 a hyperbolic function of the 5-minute load average.
435 depends on SH_MPC1211
438 menu "Kernel features"
441 bool "kexec system call (EXPERIMENTAL)"
442 depends on EXPERIMENTAL
444 kexec is a system call that implements the ability to shutdown your
445 current kernel, and to start another kernel. It is like a reboot
446 but it is independent of the system firmware. And like a reboot
447 you can start any kernel with it, not just Linux.
449 The name comes from the similarity to the exec system call.
451 It is an ongoing process to be certain the hardware in a machine
452 is properly shutdown, so do not be surprised if this code does not
453 initially work for you. It may help to enable device hotplugging
454 support. As of this writing the exact hardware interface is
455 strongly in flux, so no good recommendation can be made.
458 bool "Preemptible Kernel (EXPERIMENTAL)"
459 depends on EXPERIMENTAL
462 bool "Symmetric multi-processing support"
464 This enables support for systems with more than one CPU. If you have
465 a system with only one CPU, like most personal computers, say N. If
466 you have a system with more than one CPU, say Y.
468 If you say N here, the kernel will run on single and multiprocessor
469 machines, but will use only one CPU of a multiprocessor machine. If
470 you say Y here, the kernel will run on many, but not all,
471 singleprocessor machines. On a singleprocessor machine, the kernel
472 will run faster if you say N here.
474 People using multiprocessor machines who say Y here should also say
475 Y to "Enhanced Real Time Clock Support", below.
477 See also the <file:Documentation/smp.txt>,
478 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
479 at <http://www.tldp.org/docs.html#howto>.
481 If you don't know what to do here, say N.
484 int "Maximum number of CPUs (2-32)"
489 This allows you to specify the maximum number of CPUs which this
490 kernel will support. The maximum supported value is 32 and the
491 minimum value which makes sense is 2.
493 This is purely to save memory - each supported CPU adds
494 approximately eight kilobytes to the kernel image.
498 depends on CPU_SH3 || CPU_SH4
501 This will enable the use of SR.RB register bank usage. Processors
502 that are lacking this bit must have another method in place for
503 accomplishing what is taken care of by the banked registers.
505 See <file:Documentation/sh/register-banks.txt> for further
506 information on SR.RB and register banking in the kernel in general.
511 depends on NEED_MULTIPLE_NODES
517 config ZERO_PAGE_OFFSET
518 hex "Zero page offset"
519 default "0x00004000" if SH_MPC1211 || SH_SH03
522 This sets the default offset of zero page.
524 config BOOT_LINK_OFFSET
525 hex "Link address offset for booting"
528 This option allows you to set the link address offset of the zImage.
529 This can be useful if you are on a board which has a small amount of
533 bool "Wakeup UBC on startup"
535 Selecting this option will wakeup the User Break Controller (UBC) on
536 startup. Although the UBC is left in an awake state when the processor
537 comes up, some boot loaders misbehave by putting the UBC to sleep in a
538 power saving state, which causes issues with things like ptrace().
543 bool "Default bootloader kernel arguments"
546 string "Initial kernel command string"
547 depends on CMDLINE_BOOL
548 default "console=ttySC1,115200"
554 # Even on SuperH devices which don't have an ISA bus,
555 # this variable helps the PCMCIA modules handle
556 # IRQ requesting properly -- Greg Banks.
558 # Though we're generally not interested in it when
559 # we're not using PCMCIA, so we make it dependent on
560 # PCMCIA outright. -- PFM.
565 Find out whether you have ISA slots on your motherboard. ISA is the
566 name of a bus system, i.e. the way the CPU talks to the other stuff
567 inside your box. Other bus systems are PCI, EISA, MicroChannel
568 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
569 newer boards don't support it. If you have ISA, say Y, otherwise N.
574 The Extended Industry Standard Architecture (EISA) bus was
575 developed as an open alternative to the IBM MicroChannel bus.
577 The EISA bus provided some of the features of the IBM MicroChannel
578 bus while maintaining backward compatibility with cards made for
579 the older ISA bus. The EISA bus saw limited use between 1988 and
580 1995 when it was made obsolete by the PCI bus.
582 Say Y here if you are building a kernel for an EISA-based machine.
589 MicroChannel Architecture is found in some IBM PS/2 machines and
590 laptops. It is a bus system similar to PCI or ISA. See
591 <file:Documentation/mca.txt> (and especially the web page given
592 there) before attempting to build an MCA bus kernel.
598 tristate "SuperHyway Bus support"
599 depends on CPU_SUBTYPE_SH4_202
601 source "arch/sh/drivers/pci/Kconfig"
603 source "drivers/pci/Kconfig"
605 source "drivers/pcmcia/Kconfig"
607 source "drivers/pci/hotplug/Kconfig"
611 menu "Executable file formats"
613 source "fs/Kconfig.binfmt"
617 menu "Power management options (EXPERIMENTAL)"
618 depends on EXPERIMENTAL
620 source kernel/power/Kconfig
623 bool "Advanced Power Management Emulation"
629 source "drivers/Kconfig"
633 source "arch/sh/oprofile/Kconfig"
635 source "arch/sh/Kconfig.debug"
637 source "security/Kconfig"
639 source "crypto/Kconfig"