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
54 config SOLUTION_ENGINE
58 prompt "SuperH system type"
61 config SH_SOLUTION_ENGINE
63 select SOLUTION_ENGINE
65 Select SolutionEngine if configuring for a Hitachi SH7709
66 or SH7750 evaluation board.
68 config SH_7751_SOLUTION_ENGINE
69 bool "SolutionEngine7751"
70 select SOLUTION_ENGINE
71 select CPU_SUBTYPE_SH7751
73 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
76 config SH_7300_SOLUTION_ENGINE
77 bool "SolutionEngine7300"
78 select SOLUTION_ENGINE
79 select CPU_SUBTYPE_SH7300
81 Select 7300 SolutionEngine if configuring for a Hitachi
82 SH7300(SH-Mobile V) evaluation board.
84 config SH_7343_SOLUTION_ENGINE
85 bool "SolutionEngine7343"
86 select SOLUTION_ENGINE
87 select CPU_SUBTYPE_SH7343
89 Select 7343 SolutionEngine if configuring for a Hitachi
90 SH7343 (SH-Mobile 3AS) evaluation board.
92 config SH_73180_SOLUTION_ENGINE
93 bool "SolutionEngine73180"
94 select SOLUTION_ENGINE
95 select CPU_SUBTYPE_SH73180
97 Select 73180 SolutionEngine if configuring for a Hitachi
98 SH73180(SH-Mobile 3) evaluation board.
100 config SH_7751_SYSTEMH
102 select CPU_SUBTYPE_SH7751R
104 Select SystemH if you are configuring for a Renesas SystemH
105 7751R evaluation board.
110 Select HP6XX if configuring for a HP jornada HP6xx.
111 More information (hardware only) at
112 <http://www.hp.com/jornada/>.
117 Select EC3104 if configuring for a system with an Eclipse
118 International EC3104 chip, e.g. the Harris AD2000.
122 select CPU_SUBTYPE_SH7604
124 Select Saturn if configuring for a SEGA Saturn.
128 select CPU_SUBTYPE_SH7091
130 Select Dreamcast if configuring for a SEGA Dreamcast.
132 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
133 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
139 bool "Interface MPC1211"
141 CTP/PCI-SH02 is a CPU module computer that is produced
142 by Interface Corporation.
143 More information at <http://www.interface.co.jp>
146 bool "Interface CTP/PCI-SH03"
148 CTP/PCI-SH03 is a CPU module computer that is produced
149 by Interface Corporation.
150 More information at <http://www.interface.co.jp>
152 config SH_SECUREEDGE5410
153 bool "SecureEdge5410"
154 select CPU_SUBTYPE_SH7751R
156 Select SecureEdge5410 if configuring for a SnapGear SH board.
157 This includes both the OEM SecureEdge products as well as the
160 config SH_HS7751RVOIP
162 select CPU_SUBTYPE_SH7751R
164 Select HS7751RVOIP if configuring for a Renesas Technology
168 bool "SH7710-VOIP-GW"
169 select CPU_SUBTYPE_SH7710
171 Select this option to build a kernel for the SH7710 based
176 select CPU_SUBTYPE_SH7751R
178 Select RTS7751R2D if configuring for a Renesas Technology
179 Sales SH-Graphics board.
183 select CPU_SUBTYPE_SH7780
185 Select R7780RP-1 if configuring for a Renesas Solutions
190 select CPU_SUBTYPE_SH7705
192 config SH_SH4202_MICRODEV
193 bool "SH4-202 MicroDev"
194 select CPU_SUBTYPE_SH4_202
196 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
201 select CPU_SUBTYPE_SH7751R
203 I-O DATA DEVICE, INC. "LANDISK Series" support.
207 select CPU_SUBTYPE_SH7751R
209 Select Titan if you are configuring for a Nimble Microsystems
214 select CPU_SUBTYPE_SH7706
216 Select SHMIN if configureing for the SHMIN board
221 "Bare CPU" aka "unknown" means an SH-based system which is not one
222 of the specific ones mentioned above, which means you need to enter
223 all sorts of stuff like CONFIG_MEMORY_START because the config
224 system doesn't already know what it is. You get a machine vector
225 without any platform-specific code in it, so things like the RTC may
228 This option is for the early stages of porting to a new machine.
232 source "arch/sh/mm/Kconfig"
235 bool "Compact Flash Enabler support"
236 depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
238 Compact Flash is a small, removable mass storage device introduced
239 in 1994 originally as a PCMCIA device. If you say `Y' here, you
240 compile in support for Compact Flash devices directly connected to
241 a SuperH processor. A Compact Flash FAQ is available at
242 <http://www.compactflash.org/faqs/faq.htm>.
244 If your board has "Directly Connected" CompactFlash at area 5 or 6,
245 you may want to enable this option. Then, you can use CF as
246 primary IDE drive (only tested for SanDisk).
248 If in doubt, select 'N'.
251 prompt "Compact Flash Connection Area"
252 depends on CF_ENABLER
258 If your board has "Directly Connected" CompactFlash, You should
259 select the area where your CF is connected to.
261 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
262 - "Area6" if it is connected to Area 6 (0x18000000)
264 "Area6" will work for most boards.
273 depends on CF_ENABLER
274 default "0xb8000000" if CF_AREA6
275 default "0xb4000000" if CF_AREA5
277 menu "Processor features"
279 config CPU_LITTLE_ENDIAN
282 Some SuperH machines can be configured for either little or big
283 endian byte order. These modes require different kernels. Say Y if
284 your machine is little endian, N if it's a big endian machine.
291 Selecting this option will enable support for SH processors that
292 have FPU units (ie, SH77xx).
294 This option must be set in order to enable the FPU.
297 bool "FPU emulation support"
298 depends on !SH_FPU && EXPERIMENTAL
301 Selecting this option will enable support for software FPU emulation.
302 Most SH-3 users will want to say Y here, whereas most SH-4 users will
307 default y if SH4AL_DSP || !CPU_SH4
310 Selecting this option will enable support for SH processors that
311 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
313 This option must be set in order to enable the DSP.
320 Selecting this option will allow the Linux kernel to use SH3 on-chip
325 config SH_STORE_QUEUES
326 bool "Support for Store Queues"
329 Selecting this option will enable an in-kernel API for manipulating
330 the store queues integrated in the SH-4 processors.
332 config CPU_HAS_INTEVT
335 config CPU_HAS_PINT_IRQ
338 config CPU_HAS_MASKREG_IRQ
341 config CPU_HAS_INTC2_IRQ
346 depends on CPU_SH3 || CPU_SH4
349 This will enable the use of SR.RB register bank usage. Processors
350 that are lacking this bit must have another method in place for
351 accomplishing what is taken care of by the banked registers.
353 See <file:Documentation/sh/register-banks.txt> for further
354 information on SR.RB and register banking in the kernel in general.
361 bool "TMU timer support"
364 This enables the use of the TMU as the system timer.
368 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
370 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
372 source "arch/sh/boards/renesas/r7780rp/Kconfig"
375 int "Peripheral clock frequency (in Hz)"
376 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
377 default "60000000" if CPU_SUBTYPE_SH7751
378 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
380 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
381 default "66000000" if CPU_SUBTYPE_SH4_202
383 This option is used to specify the peripheral clock frequency.
384 This is necessary for determining the reference clock value on
385 platforms lacking an RTC.
387 menu "CPU Frequency scaling"
389 source "drivers/cpufreq/Kconfig"
392 tristate "SuperH CPU Frequency driver"
394 select CPU_FREQ_TABLE
396 This adds the cpufreq driver for SuperH. At present, only
397 the SH-4 is supported.
399 For details, take a look at <file:Documentation/cpu-freq>.
405 source "arch/sh/drivers/dma/Kconfig"
407 source "arch/sh/cchips/Kconfig"
411 depends on SH_MPC1211 || SH_SH03 || \
412 SH_BIGSUR || SOLUTION_ENGINE || \
413 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
415 Use the power-on LED on your machine as a load meter. The exact
416 behavior is platform-dependent, but normally the flash frequency is
417 a hyperbolic function of the 5-minute load average.
423 depends on SH_MPC1211
426 menu "Kernel features"
428 source kernel/Kconfig.hz
431 bool "kexec system call (EXPERIMENTAL)"
432 depends on EXPERIMENTAL
434 kexec is a system call that implements the ability to shutdown your
435 current kernel, and to start another kernel. It is like a reboot
436 but it is independent of the system firmware. And like a reboot
437 you can start any kernel with it, not just Linux.
439 The name comes from the similarity to the exec system call.
441 It is an ongoing process to be certain the hardware in a machine
442 is properly shutdown, so do not be surprised if this code does not
443 initially work for you. It may help to enable device hotplugging
444 support. As of this writing the exact hardware interface is
445 strongly in flux, so no good recommendation can be made.
448 bool "Symmetric multi-processing support"
450 This enables support for systems with more than one CPU. If you have
451 a system with only one CPU, like most personal computers, say N. If
452 you have a system with more than one CPU, say Y.
454 If you say N here, the kernel will run on single and multiprocessor
455 machines, but will use only one CPU of a multiprocessor machine. If
456 you say Y here, the kernel will run on many, but not all,
457 singleprocessor machines. On a singleprocessor machine, the kernel
458 will run faster if you say N here.
460 People using multiprocessor machines who say Y here should also say
461 Y to "Enhanced Real Time Clock Support", below.
463 See also the <file:Documentation/smp.txt>,
464 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
465 at <http://www.tldp.org/docs.html#howto>.
467 If you don't know what to do here, say N.
470 int "Maximum number of CPUs (2-32)"
475 This allows you to specify the maximum number of CPUs which this
476 kernel will support. The maximum supported value is 32 and the
477 minimum value which makes sense is 2.
479 This is purely to save memory - each supported CPU adds
480 approximately eight kilobytes to the kernel image.
482 source "kernel/Kconfig.preempt"
486 depends on CPU_SH3 || CPU_SH4
489 This will enable the use of SR.RB register bank usage. Processors
490 that are lacking this bit must have another method in place for
491 accomplishing what is taken care of by the banked registers.
493 See <file:Documentation/sh/register-banks.txt> for further
494 information on SR.RB and register banking in the kernel in general.
499 depends on NEED_MULTIPLE_NODES
505 config ZERO_PAGE_OFFSET
506 hex "Zero page offset"
507 default "0x00004000" if SH_MPC1211 || SH_SH03
510 This sets the default offset of zero page.
512 config BOOT_LINK_OFFSET
513 hex "Link address offset for booting"
516 This option allows you to set the link address offset of the zImage.
517 This can be useful if you are on a board which has a small amount of
521 bool "Wakeup UBC on startup"
523 Selecting this option will wakeup the User Break Controller (UBC) on
524 startup. Although the UBC is left in an awake state when the processor
525 comes up, some boot loaders misbehave by putting the UBC to sleep in a
526 power saving state, which causes issues with things like ptrace().
531 bool "Default bootloader kernel arguments"
534 string "Initial kernel command string"
535 depends on CMDLINE_BOOL
536 default "console=ttySC1,115200"
542 # Even on SuperH devices which don't have an ISA bus,
543 # this variable helps the PCMCIA modules handle
544 # IRQ requesting properly -- Greg Banks.
546 # Though we're generally not interested in it when
547 # we're not using PCMCIA, so we make it dependent on
548 # PCMCIA outright. -- PFM.
553 Find out whether you have ISA slots on your motherboard. ISA is the
554 name of a bus system, i.e. the way the CPU talks to the other stuff
555 inside your box. Other bus systems are PCI, EISA, MicroChannel
556 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
557 newer boards don't support it. If you have ISA, say Y, otherwise N.
562 The Extended Industry Standard Architecture (EISA) bus was
563 developed as an open alternative to the IBM MicroChannel bus.
565 The EISA bus provided some of the features of the IBM MicroChannel
566 bus while maintaining backward compatibility with cards made for
567 the older ISA bus. The EISA bus saw limited use between 1988 and
568 1995 when it was made obsolete by the PCI bus.
570 Say Y here if you are building a kernel for an EISA-based machine.
577 MicroChannel Architecture is found in some IBM PS/2 machines and
578 laptops. It is a bus system similar to PCI or ISA. See
579 <file:Documentation/mca.txt> (and especially the web page given
580 there) before attempting to build an MCA bus kernel.
586 tristate "SuperHyway Bus support"
587 depends on CPU_SUBTYPE_SH4_202
589 source "arch/sh/drivers/pci/Kconfig"
591 source "drivers/pci/Kconfig"
593 source "drivers/pcmcia/Kconfig"
595 source "drivers/pci/hotplug/Kconfig"
599 menu "Executable file formats"
601 source "fs/Kconfig.binfmt"
605 menu "Power management options (EXPERIMENTAL)"
606 depends on EXPERIMENTAL
608 source kernel/power/Kconfig
611 bool "Advanced Power Management Emulation"
617 source "drivers/Kconfig"
621 source "arch/sh/oprofile/Kconfig"
623 source "arch/sh/Kconfig.debug"
625 source "security/Kconfig"
627 source "crypto/Kconfig"