4 # Horrible source of confusion. Die, die, die ...
7 mainmenu "Linux/MIPS Kernel Configuration"
9 menu "Machine selection"
16 bool "4G Systems MTX-1 board"
17 select DMA_NONCOHERENT
19 select RESOURCES_64BIT if PCI
21 select SYS_HAS_CPU_MIPS32_R1
22 select SYS_SUPPORTS_LITTLE_ENDIAN
25 bool "AMD Alchemy Bosporus board"
27 select DMA_NONCOHERENT
28 select SYS_HAS_CPU_MIPS32_R1
29 select SYS_SUPPORTS_LITTLE_ENDIAN
32 bool "AMD Alchemy PB1000 board"
34 select DMA_NONCOHERENT
36 select RESOURCES_64BIT if PCI
38 select SYS_HAS_CPU_MIPS32_R1
39 select SYS_SUPPORTS_LITTLE_ENDIAN
42 bool "AMD Alchemy PB1100 board"
44 select DMA_NONCOHERENT
46 select RESOURCES_64BIT if PCI
48 select SYS_HAS_CPU_MIPS32_R1
49 select SYS_SUPPORTS_LITTLE_ENDIAN
52 bool "AMD Alchemy PB1500 board"
54 select DMA_NONCOHERENT
56 select RESOURCES_64BIT if PCI
57 select SYS_HAS_CPU_MIPS32_R1
58 select SYS_SUPPORTS_LITTLE_ENDIAN
61 bool "AMD Alchemy PB1550 board"
63 select DMA_NONCOHERENT
65 select MIPS_DISABLE_OBSOLETE_IDE
66 select RESOURCES_64BIT if PCI
67 select SYS_HAS_CPU_MIPS32_R1
68 select SYS_SUPPORTS_LITTLE_ENDIAN
71 bool "AMD Alchemy PB1200 board"
73 select DMA_NONCOHERENT
74 select MIPS_DISABLE_OBSOLETE_IDE
75 select RESOURCES_64BIT if PCI
76 select SYS_HAS_CPU_MIPS32_R1
77 select SYS_SUPPORTS_LITTLE_ENDIAN
80 bool "AMD Alchemy DB1000 board"
82 select DMA_NONCOHERENT
84 select RESOURCES_64BIT if PCI
85 select SYS_HAS_CPU_MIPS32_R1
86 select SYS_SUPPORTS_LITTLE_ENDIAN
89 bool "AMD Alchemy DB1100 board"
91 select DMA_NONCOHERENT
92 select SYS_HAS_CPU_MIPS32_R1
93 select SYS_SUPPORTS_LITTLE_ENDIAN
96 bool "AMD Alchemy DB1500 board"
98 select DMA_NONCOHERENT
100 select MIPS_DISABLE_OBSOLETE_IDE
101 select RESOURCES_64BIT if PCI
102 select SYS_HAS_CPU_MIPS32_R1
103 select SYS_SUPPORTS_BIG_ENDIAN
104 select SYS_SUPPORTS_LITTLE_ENDIAN
107 bool "AMD Alchemy DB1550 board"
110 select DMA_NONCOHERENT
111 select MIPS_DISABLE_OBSOLETE_IDE
112 select RESOURCES_64BIT if PCI
113 select SYS_HAS_CPU_MIPS32_R1
114 select SYS_SUPPORTS_LITTLE_ENDIAN
117 bool "AMD Alchemy DB1200 board"
120 select MIPS_DISABLE_OBSOLETE_IDE
121 select SYS_HAS_CPU_MIPS32_R1
122 select SYS_SUPPORTS_LITTLE_ENDIAN
125 bool "AMD Alchemy Mirage board"
126 select DMA_NONCOHERENT
128 select SYS_HAS_CPU_MIPS32_R1
129 select SYS_SUPPORTS_LITTLE_ENDIAN
132 bool "Basler eXcite smart camera support"
139 select SYS_HAS_CPU_RM9000
140 select SYS_SUPPORTS_32BIT_KERNEL
141 select SYS_SUPPORTS_64BIT_KERNEL
142 select SYS_SUPPORTS_BIG_ENDIAN
144 The eXcite is a smart camera platform manufactured by
145 Basler Vision Technologies AG
147 config BASLER_EXCITE_PROTOTYPE
148 bool "Support for pre-release units"
149 depends on BASLER_EXCITE
152 Pre-series (prototype) units are different from later ones in
153 some ways. Select this option if you have one of these. Please
154 note that a kernel built with this option selected will not be
155 able to run on normal units.
159 select DMA_NONCOHERENT
164 select SYS_HAS_CPU_NEVADA
165 select SYS_SUPPORTS_32BIT_KERNEL
166 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
167 select SYS_SUPPORTS_LITTLE_ENDIAN
168 select GENERIC_HARDIRQS_NO__DO_IRQ
170 config MACH_DECSTATION
173 select DMA_NONCOHERENT
176 select SYS_HAS_CPU_R3000
177 select SYS_HAS_CPU_R4X00
178 select SYS_SUPPORTS_32BIT_KERNEL
179 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
180 select SYS_SUPPORTS_LITTLE_ENDIAN
181 select SYS_SUPPORTS_128HZ
182 select SYS_SUPPORTS_256HZ
183 select SYS_SUPPORTS_1024HZ
185 This enables support for DEC's MIPS based workstations. For details
186 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
187 DECstation porting pages on <http://decstation.unix-ag.org/>.
189 If you have one of the following DECstation Models you definitely
190 want to choose R4xx0 for the CPU Type:
197 otherwise choose R3000.
200 bool "Galileo EV64120 Evaluation board (EXPERIMENTAL)"
201 depends on EXPERIMENTAL
202 select DMA_NONCOHERENT
205 select SYS_HAS_CPU_R5000
206 select SYS_SUPPORTS_32BIT_KERNEL
207 select SYS_SUPPORTS_64BIT_KERNEL
208 select SYS_SUPPORTS_BIG_ENDIAN
210 This is an evaluation board based on the Galileo GT-64120
211 single-chip system controller that contains a MIPS R5000 compatible
212 core running at 75/100MHz. Their website is located at
213 <http://www.marvell.com/>. Say Y here if you wish to build a
214 kernel for this platform.
217 bool "Jazz family of machines"
220 select ARCH_MAY_HAVE_PC_FDC
221 select GENERIC_ISA_DMA
225 select SYS_HAS_CPU_R4X00
226 select SYS_SUPPORTS_32BIT_KERNEL
227 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
228 select SYS_SUPPORTS_100HZ
229 select GENERIC_HARDIRQS_NO__DO_IRQ
231 This a family of machines based on the MIPS R4030 chipset which was
232 used by several vendors to build RISC/os and Windows NT workstations.
233 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
234 Olivetti M700-10 workstations.
237 bool "LASAT Networks platforms"
238 select DMA_NONCOHERENT
242 select R5000_CPU_SCACHE
243 select SYS_HAS_CPU_R5000
244 select SYS_SUPPORTS_32BIT_KERNEL
245 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
246 select SYS_SUPPORTS_LITTLE_ENDIAN
247 select GENERIC_HARDIRQS_NO__DO_IRQ
250 bool "MIPS Atlas board"
252 select DMA_NONCOHERENT
255 select MIPS_BOARDS_GEN
259 select RM7000_CPU_SCACHE
261 select SYS_HAS_CPU_MIPS32_R1
262 select SYS_HAS_CPU_MIPS32_R2
263 select SYS_HAS_CPU_MIPS64_R1
264 select SYS_HAS_CPU_NEVADA
265 select SYS_HAS_CPU_RM7000
266 select SYS_SUPPORTS_32BIT_KERNEL
267 select SYS_SUPPORTS_64BIT_KERNEL
268 select SYS_SUPPORTS_BIG_ENDIAN
269 select SYS_SUPPORTS_LITTLE_ENDIAN
270 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
271 select GENERIC_HARDIRQS_NO__DO_IRQ
273 This enables support for the MIPS Technologies Atlas evaluation
277 bool "MIPS Malta board"
278 select ARCH_MAY_HAVE_PC_FDC
280 select HAVE_STD_PC_SERIAL_PORT
281 select DMA_NONCOHERENT
282 select GENERIC_ISA_DMA
286 select MIPS_BOARDS_GEN
288 select MIPS_CPU_SCACHE
292 select SYS_HAS_CPU_MIPS32_R1
293 select SYS_HAS_CPU_MIPS32_R2
294 select SYS_HAS_CPU_MIPS64_R1
295 select SYS_HAS_CPU_NEVADA
296 select SYS_HAS_CPU_RM7000
297 select SYS_SUPPORTS_32BIT_KERNEL
298 select SYS_SUPPORTS_64BIT_KERNEL
299 select SYS_SUPPORTS_BIG_ENDIAN
300 select SYS_SUPPORTS_LITTLE_ENDIAN
301 select SYS_SUPPORTS_MULTITHREADING
303 This enables support for the MIPS Technologies Malta evaluation
307 bool "MIPS SEAD board (EXPERIMENTAL)"
308 depends on EXPERIMENTAL
310 select DMA_NONCOHERENT
311 select MIPS_BOARDS_GEN
312 select SYS_HAS_CPU_MIPS32_R1
313 select SYS_HAS_CPU_MIPS32_R2
314 select SYS_HAS_CPU_MIPS64_R1
315 select SYS_SUPPORTS_32BIT_KERNEL
316 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
317 select SYS_SUPPORTS_BIG_ENDIAN
318 select SYS_SUPPORTS_LITTLE_ENDIAN
320 This enables support for the MIPS Technologies SEAD evaluation
324 bool "Wind River PPMC board"
327 select DMA_NONCOHERENT
331 select SYS_HAS_CPU_MIPS32_R1
332 select SYS_HAS_CPU_MIPS32_R2
333 select SYS_HAS_CPU_MIPS64_R1
334 select SYS_HAS_CPU_NEVADA
335 select SYS_HAS_CPU_RM7000
336 select SYS_SUPPORTS_32BIT_KERNEL
337 select SYS_SUPPORTS_64BIT_KERNEL
338 select SYS_SUPPORTS_BIG_ENDIAN
339 select SYS_SUPPORTS_LITTLE_ENDIAN
341 This enables support for the Wind River MIPS32 4KC PPMC evaluation
342 board, which is based on GT64120 bridge chip.
345 bool 'MIPS simulator (MIPSsim)'
346 select DMA_NONCOHERENT
348 select SYS_HAS_CPU_MIPS32_R1
349 select SYS_HAS_CPU_MIPS32_R2
350 select SYS_SUPPORTS_32BIT_KERNEL
351 select SYS_SUPPORTS_BIG_ENDIAN
352 select SYS_SUPPORTS_LITTLE_ENDIAN
354 This option enables support for MIPS Technologies MIPSsim software
357 config MOMENCO_JAGUAR_ATX
358 bool "Momentum Jaguar board"
360 select DMA_NONCOHERENT
367 select RM7000_CPU_SCACHE
369 select SYS_HAS_CPU_RM9000
370 select SYS_SUPPORTS_32BIT_KERNEL
371 select SYS_SUPPORTS_64BIT_KERNEL
372 select SYS_SUPPORTS_BIG_ENDIAN
374 The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
375 Momentum Computer <http://www.momenco.com/>.
377 config MOMENCO_OCELOT
378 bool "Momentum Ocelot board"
379 select DMA_NONCOHERENT
384 select RM7000_CPU_SCACHE
386 select SYS_HAS_CPU_RM7000
387 select SYS_SUPPORTS_32BIT_KERNEL
388 select SYS_SUPPORTS_64BIT_KERNEL
389 select SYS_SUPPORTS_BIG_ENDIAN
391 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
392 Momentum Computer <http://www.momenco.com/>.
394 config MOMENCO_OCELOT_3
395 bool "Momentum Ocelot-3 board"
397 select DMA_NONCOHERENT
403 select RM7000_CPU_SCACHE
405 select SYS_HAS_CPU_RM9000
406 select SYS_SUPPORTS_32BIT_KERNEL
407 select SYS_SUPPORTS_64BIT_KERNEL
408 select SYS_SUPPORTS_BIG_ENDIAN
410 The Ocelot-3 is based off Discovery III System Controller and
411 PMC-Sierra Rm79000 core.
413 config MOMENCO_OCELOT_C
414 bool "Momentum Ocelot-C board"
415 select DMA_NONCOHERENT
420 select RM7000_CPU_SCACHE
422 select SYS_HAS_CPU_RM7000
423 select SYS_SUPPORTS_32BIT_KERNEL
424 select SYS_SUPPORTS_64BIT_KERNEL
425 select SYS_SUPPORTS_BIG_ENDIAN
426 select GENERIC_HARDIRQS_NO__DO_IRQ
428 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
429 Momentum Computer <http://www.momenco.com/>.
431 config MOMENCO_OCELOT_G
432 bool "Momentum Ocelot-G board"
433 select DMA_NONCOHERENT
438 select RM7000_CPU_SCACHE
440 select SYS_HAS_CPU_RM7000
441 select SYS_SUPPORTS_32BIT_KERNEL
442 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
443 select SYS_SUPPORTS_BIG_ENDIAN
445 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
446 Momentum Computer <http://www.momenco.com/>.
449 bool "MyCable XXS1500 board"
450 select DMA_NONCOHERENT
452 select SYS_SUPPORTS_LITTLE_ENDIAN
455 bool "Philips PNX8550 based Viper2-PCI board"
457 select SYS_SUPPORTS_LITTLE_ENDIAN
460 bool "Philips PNX8550 based JBS board"
462 select SYS_SUPPORTS_LITTLE_ENDIAN
464 config PNX8550_STB810
465 bool "Support for Philips PNX8550 based STB810 board"
467 select SYS_SUPPORTS_LITTLE_ENDIAN
470 bool "NEC DDB Vrc-5477"
471 select DDB5XXX_COMMON
472 select DMA_NONCOHERENT
476 select SYS_HAS_CPU_R5432
477 select SYS_SUPPORTS_32BIT_KERNEL
478 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
479 select SYS_SUPPORTS_LITTLE_ENDIAN
481 This enables support for the R5432-based NEC DDB Vrc-5477,
482 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
484 Features : kernel debugging, serial terminal, NFS root fs, on-board
485 ether port USB, AC97, PCI, etc.
488 bool "NEC VR41XX-based machines"
489 select SYS_HAS_CPU_VR41XX
490 select SYS_SUPPORTS_32BIT_KERNEL
491 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
492 select GENERIC_HARDIRQS_NO__DO_IRQ
495 bool "PMC-Sierra Yosemite eval board"
502 select SYS_HAS_CPU_RM9000
503 select SYS_SUPPORTS_32BIT_KERNEL
504 select SYS_SUPPORTS_64BIT_KERNEL
505 select SYS_SUPPORTS_BIG_ENDIAN
506 select SYS_SUPPORTS_HIGHMEM
507 select SYS_SUPPORTS_SMP
509 Yosemite is an evaluation board for the RM9000x2 processor
510 manufactured by PMC-Sierra.
515 select GENERIC_ISA_DMA
516 select HAVE_STD_PC_SERIAL_PORT
521 select SYS_HAS_CPU_MIPS32_R1
522 select SYS_SUPPORTS_32BIT_KERNEL
523 select SYS_SUPPORTS_BIG_ENDIAN
524 select SYS_SUPPORTS_LITTLE_ENDIAN
525 select ARCH_SPARSEMEM_ENABLE
526 select GENERIC_HARDIRQS_NO__DO_IRQ
528 Qemu is a software emulator which among other architectures also
529 can simulate a MIPS32 4Kc system. This patch adds support for the
530 system architecture that currently is being simulated by Qemu. It
531 will eventually be removed again when Qemu has the capability to
532 simulate actual MIPS hardware platforms. More information on Qemu
533 can be found at http://www.linux-mips.org/wiki/Qemu.
536 bool "Support for NEC EMMA2RH Mark-eins"
537 select DMA_NONCOHERENT
541 select SYS_SUPPORTS_32BIT_KERNEL
542 select SYS_SUPPORTS_BIG_ENDIAN
543 select SYS_SUPPORTS_LITTLE_ENDIAN
544 select SYS_HAS_CPU_R5000
546 This enables support for the R5432-based NEC Mark-eins
547 boards with R5500 CPU.
550 bool "SGI IP22 (Indy/Indigo2)"
554 select DMA_NONCOHERENT
556 select IP22_CPU_SCACHE
558 select GENERIC_ISA_DMA_SUPPORT_BROKEN
560 select SYS_HAS_CPU_R4X00
561 select SYS_HAS_CPU_R5000
562 select SYS_SUPPORTS_32BIT_KERNEL
563 select SYS_SUPPORTS_64BIT_KERNEL
564 select SYS_SUPPORTS_BIG_ENDIAN
566 This are the SGI Indy, Challenge S and Indigo2, as well as certain
567 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
568 that runs on these, say Y here.
571 bool "SGI IP27 (Origin200/2000)"
578 select NR_CPUS_DEFAULT_64
580 select SYS_HAS_CPU_R10000
581 select SYS_SUPPORTS_64BIT_KERNEL
582 select SYS_SUPPORTS_BIG_ENDIAN
583 select SYS_SUPPORTS_NUMA
584 select SYS_SUPPORTS_SMP
585 select GENERIC_HARDIRQS_NO__DO_IRQ
587 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
588 workstations. To compile a Linux kernel that runs on these, say Y
592 bool "SGI IP32 (O2) (EXPERIMENTAL)"
593 depends on EXPERIMENTAL
599 select DMA_NONCOHERENT
601 select R5000_CPU_SCACHE
602 select RM7000_CPU_SCACHE
603 select SYS_HAS_CPU_R5000
604 select SYS_HAS_CPU_R10000 if BROKEN
605 select SYS_HAS_CPU_RM7000
606 select SYS_HAS_CPU_NEVADA
607 select SYS_SUPPORTS_64BIT_KERNEL
608 select SYS_SUPPORTS_BIG_ENDIAN
610 If you want this kernel to run on SGI O2 workstation, say Y here.
613 bool "Sibyte BCM91480B-BigSur"
616 select NR_CPUS_DEFAULT_4
618 select SIBYTE_BCM1x80
620 select SYS_HAS_CPU_SB1
621 select SYS_SUPPORTS_BIG_ENDIAN
622 select SYS_SUPPORTS_LITTLE_ENDIAN
625 bool "Sibyte BCM91250A-SWARM"
628 select NR_CPUS_DEFAULT_2
631 select SYS_HAS_CPU_SB1
632 select SYS_SUPPORTS_BIG_ENDIAN
633 select SYS_SUPPORTS_HIGHMEM
634 select SYS_SUPPORTS_LITTLE_ENDIAN
636 config SIBYTE_SENTOSA
637 bool "Sibyte BCM91250E-Sentosa"
638 depends on EXPERIMENTAL
641 select NR_CPUS_DEFAULT_2
644 select SYS_HAS_CPU_SB1
645 select SYS_SUPPORTS_BIG_ENDIAN
646 select SYS_SUPPORTS_LITTLE_ENDIAN
649 bool "Sibyte BCM91125E-Rhone"
650 depends on EXPERIMENTAL
653 select SIBYTE_BCM1125H
655 select SYS_HAS_CPU_SB1
656 select SYS_SUPPORTS_BIG_ENDIAN
657 select SYS_SUPPORTS_LITTLE_ENDIAN
660 bool "Sibyte BCM91120x-Carmel"
661 depends on EXPERIMENTAL
664 select SIBYTE_BCM1120
666 select SYS_HAS_CPU_SB1
667 select SYS_SUPPORTS_BIG_ENDIAN
668 select SYS_SUPPORTS_LITTLE_ENDIAN
670 config SIBYTE_PTSWARM
671 bool "Sibyte BCM91250PT-PTSWARM"
672 depends on EXPERIMENTAL
675 select NR_CPUS_DEFAULT_2
678 select SYS_HAS_CPU_SB1
679 select SYS_SUPPORTS_BIG_ENDIAN
680 select SYS_SUPPORTS_HIGHMEM
681 select SYS_SUPPORTS_LITTLE_ENDIAN
683 config SIBYTE_LITTLESUR
684 bool "Sibyte BCM91250C2-LittleSur"
685 depends on EXPERIMENTAL
688 select NR_CPUS_DEFAULT_2
691 select SYS_HAS_CPU_SB1
692 select SYS_SUPPORTS_BIG_ENDIAN
693 select SYS_SUPPORTS_HIGHMEM
694 select SYS_SUPPORTS_LITTLE_ENDIAN
697 bool "Sibyte BCM91120C-CRhine"
698 depends on EXPERIMENTAL
701 select SIBYTE_BCM1120
703 select SYS_HAS_CPU_SB1
704 select SYS_SUPPORTS_BIG_ENDIAN
705 select SYS_SUPPORTS_LITTLE_ENDIAN
708 bool "Sibyte BCM91125C-CRhone"
709 depends on EXPERIMENTAL
712 select SIBYTE_BCM1125
714 select SYS_HAS_CPU_SB1
715 select SYS_SUPPORTS_BIG_ENDIAN
716 select SYS_SUPPORTS_HIGHMEM
717 select SYS_SUPPORTS_LITTLE_ENDIAN
720 bool "SNI RM200/300/400"
721 select ARC if CPU_LITTLE_ENDIAN
722 select ARC32 if CPU_LITTLE_ENDIAN
723 select ARCH_MAY_HAVE_PC_FDC
725 select DMA_NONCOHERENT
726 select GENERIC_ISA_DMA
727 select HAVE_STD_PC_SERIAL_PORT
733 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
734 select SYS_HAS_CPU_R4X00
735 select SYS_HAS_CPU_R5000
736 select R5000_CPU_SCACHE
737 select SYS_SUPPORTS_32BIT_KERNEL
738 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
739 select SYS_SUPPORTS_BIG_ENDIAN
740 select SYS_SUPPORTS_HIGHMEM
741 select SYS_SUPPORTS_LITTLE_ENDIAN
743 The SNI RM200/300/400 are MIPS-based machines manufactured by
744 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
745 Technology and now in turn merged with Fujitsu. Say Y here to
746 support this machine type.
748 config TOSHIBA_JMR3927
749 bool "Toshiba JMR-TX3927 board"
750 select DMA_NONCOHERENT
754 select SYS_HAS_CPU_TX39XX
755 select SYS_SUPPORTS_32BIT_KERNEL
756 select SYS_SUPPORTS_BIG_ENDIAN
757 select TOSHIBA_BOARDS
759 config TOSHIBA_RBTX4927
760 bool "Toshiba TBTX49[23]7 board"
761 select DMA_NONCOHERENT
762 select HAS_TXX9_SERIAL
767 select SYS_HAS_CPU_TX49XX
768 select SYS_SUPPORTS_32BIT_KERNEL
769 select SYS_SUPPORTS_64BIT_KERNEL
770 select SYS_SUPPORTS_BIG_ENDIAN
771 select TOSHIBA_BOARDS
772 select GENERIC_HARDIRQS_NO__DO_IRQ
774 This Toshiba board is based on the TX4927 processor. Say Y here to
775 support this machine type
777 config TOSHIBA_RBTX4938
778 bool "Toshiba RBTX4938 board"
779 select HAVE_STD_PC_SERIAL_PORT
780 select DMA_NONCOHERENT
781 select GENERIC_ISA_DMA
782 select HAS_TXX9_SERIAL
787 select SYS_HAS_CPU_TX49XX
788 select SYS_SUPPORTS_32BIT_KERNEL
789 select SYS_SUPPORTS_LITTLE_ENDIAN
790 select SYS_SUPPORTS_BIG_ENDIAN
791 select TOSHIBA_BOARDS
792 select GENERIC_HARDIRQS_NO__DO_IRQ
794 This Toshiba board is based on the TX4938 processor. Say Y here to
795 support this machine type
799 source "arch/mips/ddb5xxx/Kconfig"
800 source "arch/mips/gt64120/ev64120/Kconfig"
801 source "arch/mips/jazz/Kconfig"
802 source "arch/mips/lasat/Kconfig"
803 source "arch/mips/momentum/Kconfig"
804 source "arch/mips/pmc-sierra/Kconfig"
805 source "arch/mips/sgi-ip27/Kconfig"
806 source "arch/mips/sibyte/Kconfig"
807 source "arch/mips/tx4927/Kconfig"
808 source "arch/mips/tx4938/Kconfig"
809 source "arch/mips/vr41xx/Kconfig"
810 source "arch/mips/philips/pnx8550/common/Kconfig"
811 source "arch/mips/cobalt/Kconfig"
815 config RWSEM_GENERIC_SPINLOCK
819 config RWSEM_XCHGADD_ALGORITHM
822 config ARCH_HAS_ILOG2_U32
826 config ARCH_HAS_ILOG2_U64
830 config GENERIC_FIND_NEXT_BIT
834 config GENERIC_HWEIGHT
838 config GENERIC_CALIBRATE_DELAY
846 config SCHED_NO_NO_OMIT_FRAME_POINTER
850 config GENERIC_HARDIRQS_NO__DO_IRQ
855 # Select some configuration options automatically based on user selections.
860 config ARCH_MAY_HAVE_PC_FDC
871 select DMA_NEED_PCI_MAP_STATE
873 config DMA_NONCOHERENT
875 select DMA_NEED_PCI_MAP_STATE
877 config DMA_NEED_PCI_MAP_STATE
886 config GENERIC_ISA_DMA
895 select SYS_SUPPORTS_HIGHMEM
906 config MIPS_DISABLE_OBSOLETE_IDE
909 config GENERIC_ISA_DMA_SUPPORT_BROKEN
913 # Endianess selection. Sufficiently obscure so many users don't know what to
914 # answer,so we try hard to limit the available choices. Also the use of a
915 # choice statement should be more obvious to the user.
918 prompt "Endianess selection"
920 Some MIPS machines can be configured for either little or big endian
921 byte order. These modes require different kernels and a different
922 Linux distribution. In general there is one preferred byteorder for a
923 particular system but some systems are just as commonly used in the
924 one or the other endianess.
926 config CPU_BIG_ENDIAN
928 depends on SYS_SUPPORTS_BIG_ENDIAN
930 config CPU_LITTLE_ENDIAN
932 depends on SYS_SUPPORTS_LITTLE_ENDIAN
937 config SYS_SUPPORTS_APM_EMULATION
940 config SYS_SUPPORTS_BIG_ENDIAN
943 config SYS_SUPPORTS_LITTLE_ENDIAN
958 config DDB5XXX_COMMON
961 config MIPS_BOARDS_GEN
972 select HAS_TXX9_SERIAL
1005 select SYS_HAS_CPU_MIPS32_R1
1006 select SYS_SUPPORTS_32BIT_KERNEL
1007 select SYS_SUPPORTS_APM_EMULATION
1015 select DMA_NONCOHERENT
1017 select SYS_HAS_CPU_MIPS32_R1
1018 select SYS_SUPPORTS_32BIT_KERNEL
1019 select GENERIC_HARDIRQS_NO__DO_IRQ
1021 config SWAP_IO_SPACE
1029 config SERIAL_RM9000
1039 # Unfortunately not all GT64120 systems run the chip at the same clock.
1040 # As the user for the clock rate and try to minimize the available options.
1043 prompt "Galileo Chip Clock"
1044 #default SYSCLK_83 if MIPS_EV64120
1045 depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1046 default SYSCLK_83 if MIPS_EV64120
1047 default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
1050 bool "75" if MIPS_EV64120
1053 bool "83.3" if MIPS_EV64120
1056 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1066 config MIPS_L1_CACHE_SHIFT
1068 default "4" if MACH_DECSTATION
1069 default "7" if SGI_IP27
1072 config HAVE_STD_PC_SERIAL_PORT
1076 bool "ARC console support"
1077 depends on SGI_IP22 || SNI_RM
1081 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1086 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1095 config TOSHIBA_BOARDS
1098 menu "CPU selection"
1104 config CPU_MIPS32_R1
1105 bool "MIPS32 Release 1"
1106 depends on SYS_HAS_CPU_MIPS32_R1
1108 select CPU_HAS_PREFETCH
1109 select CPU_SUPPORTS_32BIT_KERNEL
1110 select CPU_SUPPORTS_HIGHMEM
1112 Choose this option to build a kernel for release 1 or later of the
1113 MIPS32 architecture. Most modern embedded systems with a 32-bit
1114 MIPS processor are based on a MIPS32 processor. If you know the
1115 specific type of processor in your system, choose those that one
1116 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1117 Release 2 of the MIPS32 architecture is available since several
1118 years so chances are you even have a MIPS32 Release 2 processor
1119 in which case you should choose CPU_MIPS32_R2 instead for better
1122 config CPU_MIPS32_R2
1123 bool "MIPS32 Release 2"
1124 depends on SYS_HAS_CPU_MIPS32_R2
1126 select CPU_HAS_PREFETCH
1127 select CPU_SUPPORTS_32BIT_KERNEL
1128 select CPU_SUPPORTS_HIGHMEM
1130 Choose this option to build a kernel for release 2 or later of the
1131 MIPS32 architecture. Most modern embedded systems with a 32-bit
1132 MIPS processor are based on a MIPS32 processor. If you know the
1133 specific type of processor in your system, choose those that one
1134 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1136 config CPU_MIPS64_R1
1137 bool "MIPS64 Release 1"
1138 depends on SYS_HAS_CPU_MIPS64_R1
1140 select CPU_HAS_PREFETCH
1141 select CPU_SUPPORTS_32BIT_KERNEL
1142 select CPU_SUPPORTS_64BIT_KERNEL
1143 select CPU_SUPPORTS_HIGHMEM
1145 Choose this option to build a kernel for release 1 or later of the
1146 MIPS64 architecture. Many modern embedded systems with a 64-bit
1147 MIPS processor are based on a MIPS64 processor. If you know the
1148 specific type of processor in your system, choose those that one
1149 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1150 Release 2 of the MIPS64 architecture is available since several
1151 years so chances are you even have a MIPS64 Release 2 processor
1152 in which case you should choose CPU_MIPS64_R2 instead for better
1155 config CPU_MIPS64_R2
1156 bool "MIPS64 Release 2"
1157 depends on SYS_HAS_CPU_MIPS64_R2
1159 select CPU_HAS_PREFETCH
1160 select CPU_SUPPORTS_32BIT_KERNEL
1161 select CPU_SUPPORTS_64BIT_KERNEL
1162 select CPU_SUPPORTS_HIGHMEM
1164 Choose this option to build a kernel for release 2 or later of the
1165 MIPS64 architecture. Many modern embedded systems with a 64-bit
1166 MIPS processor are based on a MIPS64 processor. If you know the
1167 specific type of processor in your system, choose those that one
1168 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1172 depends on SYS_HAS_CPU_R3000
1174 select CPU_SUPPORTS_32BIT_KERNEL
1175 select CPU_SUPPORTS_HIGHMEM
1177 Please make sure to pick the right CPU type. Linux/MIPS is not
1178 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1179 *not* work on R4000 machines and vice versa. However, since most
1180 of the supported machines have an R4000 (or similar) CPU, R4x00
1181 might be a safe bet. If the resulting kernel does not work,
1182 try to recompile with R3000.
1186 depends on SYS_HAS_CPU_TX39XX
1187 select CPU_SUPPORTS_32BIT_KERNEL
1191 depends on SYS_HAS_CPU_VR41XX
1192 select CPU_SUPPORTS_32BIT_KERNEL
1193 select CPU_SUPPORTS_64BIT_KERNEL
1195 The options selects support for the NEC VR4100 series of processors.
1196 Only choose this option if you have one of these processors as a
1197 kernel built with this option will not run on any other type of
1198 processor or vice versa.
1202 depends on SYS_HAS_CPU_R4300
1204 select CPU_SUPPORTS_32BIT_KERNEL
1205 select CPU_SUPPORTS_64BIT_KERNEL
1207 MIPS Technologies R4300-series processors.
1211 depends on SYS_HAS_CPU_R4X00
1213 select CPU_SUPPORTS_32BIT_KERNEL
1214 select CPU_SUPPORTS_64BIT_KERNEL
1216 MIPS Technologies R4000-series processors other than 4300, including
1217 the R4000, R4400, R4600, and 4700.
1221 depends on SYS_HAS_CPU_TX49XX
1223 select CPU_HAS_PREFETCH
1224 select CPU_SUPPORTS_32BIT_KERNEL
1225 select CPU_SUPPORTS_64BIT_KERNEL
1229 depends on SYS_HAS_CPU_R5000
1231 select CPU_SUPPORTS_32BIT_KERNEL
1232 select CPU_SUPPORTS_64BIT_KERNEL
1234 MIPS Technologies R5000-series processors other than the Nevada.
1238 depends on SYS_HAS_CPU_R5432
1240 select CPU_SUPPORTS_32BIT_KERNEL
1241 select CPU_SUPPORTS_64BIT_KERNEL
1245 depends on EXPERIMENTAL
1247 depends on SYS_HAS_CPU_R6000
1248 select CPU_SUPPORTS_32BIT_KERNEL
1250 MIPS Technologies R6000 and R6000A series processors. Note these
1251 processors are extremely rare and the support for them is incomplete.
1255 depends on SYS_HAS_CPU_NEVADA
1257 select CPU_SUPPORTS_32BIT_KERNEL
1258 select CPU_SUPPORTS_64BIT_KERNEL
1260 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1264 depends on EXPERIMENTAL
1265 depends on SYS_HAS_CPU_R8000
1267 select CPU_HAS_PREFETCH
1268 select CPU_SUPPORTS_64BIT_KERNEL
1270 MIPS Technologies R8000 processors. Note these processors are
1271 uncommon and the support for them is incomplete.
1275 depends on SYS_HAS_CPU_R10000
1277 select CPU_HAS_PREFETCH
1278 select CPU_SUPPORTS_32BIT_KERNEL
1279 select CPU_SUPPORTS_64BIT_KERNEL
1280 select CPU_SUPPORTS_HIGHMEM
1282 MIPS Technologies R10000-series processors.
1286 depends on SYS_HAS_CPU_RM7000
1288 select CPU_HAS_PREFETCH
1289 select CPU_SUPPORTS_32BIT_KERNEL
1290 select CPU_SUPPORTS_64BIT_KERNEL
1291 select CPU_SUPPORTS_HIGHMEM
1295 depends on SYS_HAS_CPU_RM9000
1297 select CPU_HAS_PREFETCH
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_64BIT_KERNEL
1300 select CPU_SUPPORTS_HIGHMEM
1301 select WEAK_ORDERING
1305 depends on SYS_HAS_CPU_SB1
1307 select CPU_SUPPORTS_32BIT_KERNEL
1308 select CPU_SUPPORTS_64BIT_KERNEL
1309 select CPU_SUPPORTS_HIGHMEM
1310 select WEAK_ORDERING
1314 config SYS_HAS_CPU_MIPS32_R1
1317 config SYS_HAS_CPU_MIPS32_R2
1320 config SYS_HAS_CPU_MIPS64_R1
1323 config SYS_HAS_CPU_MIPS64_R2
1326 config SYS_HAS_CPU_R3000
1329 config SYS_HAS_CPU_TX39XX
1332 config SYS_HAS_CPU_VR41XX
1335 config SYS_HAS_CPU_R4300
1338 config SYS_HAS_CPU_R4X00
1341 config SYS_HAS_CPU_TX49XX
1344 config SYS_HAS_CPU_R5000
1347 config SYS_HAS_CPU_R5432
1350 config SYS_HAS_CPU_R6000
1353 config SYS_HAS_CPU_NEVADA
1356 config SYS_HAS_CPU_R8000
1359 config SYS_HAS_CPU_R10000
1362 config SYS_HAS_CPU_RM7000
1365 config SYS_HAS_CPU_RM9000
1368 config SYS_HAS_CPU_SB1
1371 config WEAK_ORDERING
1376 # These two indicate any level of the MIPS32 and MIPS64 architecture
1380 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1384 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1387 # These two indicate the revision of the architecture, either Release 1 or Release 2
1391 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1395 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1397 config SYS_SUPPORTS_32BIT_KERNEL
1399 config SYS_SUPPORTS_64BIT_KERNEL
1401 config CPU_SUPPORTS_32BIT_KERNEL
1403 config CPU_SUPPORTS_64BIT_KERNEL
1410 prompt "Kernel code model"
1412 You should only select this option if you have a workload that
1413 actually benefits from 64-bit processing or if your machine has
1414 large memory. You will only be presented a single option in this
1415 menu if your system does not support both 32-bit and 64-bit kernels.
1418 bool "32-bit kernel"
1419 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1422 Select this option if you want to build a 32-bit kernel.
1424 bool "64-bit kernel"
1425 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1427 Select this option if you want to build a 64-bit kernel.
1432 prompt "Kernel page size"
1433 default PAGE_SIZE_4KB
1435 config PAGE_SIZE_4KB
1438 This option select the standard 4kB Linux page size. On some
1439 R3000-family processors this is the only available page size. Using
1440 4kB page size will minimize memory consumption and is therefore
1441 recommended for low memory systems.
1443 config PAGE_SIZE_8KB
1445 depends on EXPERIMENTAL && CPU_R8000
1447 Using 8kB page size will result in higher performance kernel at
1448 the price of higher memory consumption. This option is available
1449 only on the R8000 processor. Not that at the time of this writing
1450 this option is still high experimental; there are also issues with
1451 compatibility of user applications.
1453 config PAGE_SIZE_16KB
1455 depends on !CPU_R3000 && !CPU_TX39XX
1457 Using 16kB page size will result in higher performance kernel at
1458 the price of higher memory consumption. This option is available on
1459 all non-R3000 family processors. Note that you will need a suitable
1460 Linux distribution to support this.
1462 config PAGE_SIZE_64KB
1464 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1466 Using 64kB page size will result in higher performance kernel at
1467 the price of higher memory consumption. This option is available on
1468 all non-R3000 family processor. Not that at the time of this
1469 writing this option is still high experimental.
1476 config IP22_CPU_SCACHE
1481 # Support for a MIPS32 / MIPS64 style S-caches
1483 config MIPS_CPU_SCACHE
1487 config R5000_CPU_SCACHE
1491 config RM7000_CPU_SCACHE
1495 config SIBYTE_DMA_PAGEOPS
1496 bool "Use DMA to clear/copy pages"
1499 Instead of using the CPU to zero and copy pages, use a Data Mover
1500 channel. These DMA channels are otherwise unused by the standard
1501 SiByte Linux port. Seems to give a small performance benefit.
1503 config CPU_HAS_PREFETCH
1507 prompt "MIPS MT options"
1509 config MIPS_MT_DISABLED
1510 bool "Disable multithreading support."
1512 Use this option if your workload can't take advantage of
1513 MIPS hardware multithreading support. On systems that don't have
1514 the option of an MT-enabled processor this option will be the only
1515 option in this menu.
1518 bool "Use 1 TC on each available VPE for SMP"
1519 depends on SYS_SUPPORTS_MULTITHREADING
1520 select CPU_MIPSR2_IRQ_VI
1521 select CPU_MIPSR2_SRS
1524 select SYS_SUPPORTS_SMP
1526 This is a kernel model which is also known a VSMP or lately
1527 has been marketesed into SMVP.
1530 bool "SMTC: Use all TCs on all VPEs for SMP"
1531 depends on CPU_MIPS32_R2
1532 #depends on CPU_MIPS64_R2 # once there is hardware ...
1533 depends on SYS_SUPPORTS_MULTITHREADING
1534 select CPU_MIPSR2_IRQ_VI
1535 select CPU_MIPSR2_SRS
1537 select NR_CPUS_DEFAULT_2
1538 select NR_CPUS_DEFAULT_8
1540 select SYS_SUPPORTS_SMP
1542 This is a kernel model which is known a SMTC or lately has been
1543 marketesed into SMVP.
1545 config MIPS_VPE_LOADER
1546 bool "VPE loader support."
1547 depends on SYS_SUPPORTS_MULTITHREADING
1550 Includes a loader for loading an elf relocatable object
1551 onto another VPE and running it.
1558 config SYS_SUPPORTS_MULTITHREADING
1561 config MIPS_MT_FPAFF
1562 bool "Dynamic FPU affinity for FP-intensive threads"
1566 config MIPS_MT_SMTC_INSTANT_REPLAY
1567 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1568 depends on MIPS_MT_SMTC
1571 SMTC pseudo-interrupts between TCs are deferred and queued
1572 if the target TC is interrupt-inhibited (IXMT). In the first
1573 SMTC prototypes, these queued IPIs were serviced on return
1574 to user mode, or on entry into the kernel idle loop. The
1575 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1576 processing, which adds runtime overhead (hence the option to turn
1577 it off), but ensures that IPIs are handled promptly even under
1578 heavy I/O interrupt load.
1580 config MIPS_VPE_LOADER_TOM
1581 bool "Load VPE program into memory hidden from linux"
1582 depends on MIPS_VPE_LOADER
1585 The loader can use memory that is present but has been hidden from
1586 Linux using the kernel command line option "mem=xxMB". It's up to
1587 you to ensure the amount you put in the option and the space your
1588 program requires is less or equal to the amount physically present.
1590 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1591 config MIPS_VPE_APSP_API
1592 bool "Enable support for AP/SP API (RTLX)"
1593 depends on MIPS_VPE_LOADER
1596 config MIPS_APSP_KSPD
1598 depends on MIPS_VPE_APSP_API
1601 KSPD is a kernel daemon that accepts syscall requests from the SP
1602 side, actions them and returns the results. It also handles the
1603 "exit" syscall notifying other kernel modules the SP program is
1604 exiting. You probably want to say yes here.
1606 config SB1_PASS_1_WORKAROUNDS
1608 depends on CPU_SB1_PASS_1
1611 config SB1_PASS_2_WORKAROUNDS
1613 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1616 config SB1_PASS_2_1_WORKAROUNDS
1618 depends on CPU_SB1 && CPU_SB1_PASS_2
1621 config 64BIT_PHYS_ADDR
1622 bool "Support for 64-bit physical address space"
1623 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1632 # Vectored interrupt mode is an R2 feature
1634 config CPU_MIPSR2_IRQ_VI
1638 # Extended interrupt mode is an R2 feature
1640 config CPU_MIPSR2_IRQ_EI
1644 # Shadow registers are an R2 feature
1646 config CPU_MIPSR2_SRS
1651 depends on !CPU_R3000
1655 # Use the generic interrupt handling code in kernel/irq/:
1657 config GENERIC_HARDIRQS
1661 config GENERIC_IRQ_PROBE
1669 # - Highmem only makes sense for the 32-bit kernel.
1670 # - The current highmem code will only work properly on physically indexed
1671 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1672 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1673 # moment we protect the user and offer the highmem option only on machines
1674 # where it's known to be safe. This will not offer highmem on a few systems
1675 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1676 # indexed CPUs but we're playing safe.
1677 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1678 # know they might have memory configurations that could make use of highmem
1682 bool "High Memory Support"
1683 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1685 config CPU_SUPPORTS_HIGHMEM
1688 config SYS_SUPPORTS_HIGHMEM
1691 config ARCH_FLATMEM_ENABLE
1695 config ARCH_DISCONTIGMEM_ENABLE
1697 default y if SGI_IP27
1699 Say Y to upport efficient handling of discontiguous physical memory,
1700 for architectures which are either NUMA (Non-Uniform Memory Access)
1701 or have huge holes in the physical address space for other reasons.
1702 See <file:Documentation/vm/numa> for more.
1704 config ARCH_SPARSEMEM_ENABLE
1706 select SPARSEMEM_STATIC
1710 depends on SYS_SUPPORTS_NUMA
1712 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1713 Access). This option improves performance on systems with more
1714 than two nodes; on two node systems it is generally better to
1715 leave it disabled; on single node systems disable this option
1718 config SYS_SUPPORTS_NUMA
1724 depends on NEED_MULTIPLE_NODES
1729 bool "Multi-Processing support"
1730 depends on SYS_SUPPORTS_SMP
1733 This enables support for systems with more than one CPU. If you have
1734 a system with only one CPU, like most personal computers, say N. If
1735 you have a system with more than one CPU, say Y.
1737 If you say N here, the kernel will run on single and multiprocessor
1738 machines, but will use only one CPU of a multiprocessor machine. If
1739 you say Y here, the kernel will run on many, but not all,
1740 singleprocessor machines. On a singleprocessor machine, the kernel
1741 will run faster if you say N here.
1743 People using multiprocessor machines who say Y here should also say
1744 Y to "Enhanced Real Time Clock Support", below.
1746 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1747 available at <http://www.tldp.org/docs.html#howto>.
1749 If you don't know what to do here, say N.
1751 config SYS_SUPPORTS_SMP
1754 config NR_CPUS_DEFAULT_2
1757 config NR_CPUS_DEFAULT_4
1760 config NR_CPUS_DEFAULT_8
1763 config NR_CPUS_DEFAULT_16
1766 config NR_CPUS_DEFAULT_32
1769 config NR_CPUS_DEFAULT_64
1773 int "Maximum number of CPUs (2-64)"
1776 default "2" if NR_CPUS_DEFAULT_2
1777 default "4" if NR_CPUS_DEFAULT_4
1778 default "8" if NR_CPUS_DEFAULT_8
1779 default "16" if NR_CPUS_DEFAULT_16
1780 default "32" if NR_CPUS_DEFAULT_32
1781 default "64" if NR_CPUS_DEFAULT_64
1783 This allows you to specify the maximum number of CPUs which this
1784 kernel will support. The maximum supported value is 32 for 32-bit
1785 kernel and 64 for 64-bit kernels; the minimum value which makes
1788 This is purely to save memory - each supported CPU adds
1789 approximately eight kilobytes to the kernel image.
1792 # Timer Interrupt Frequency Configuration
1796 prompt "Timer frequency"
1799 Allows the configuration of the timer frequency.
1802 bool "48 HZ" if SYS_SUPPORTS_48HZ
1805 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1808 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1811 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1814 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1817 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1820 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1824 config SYS_SUPPORTS_48HZ
1827 config SYS_SUPPORTS_100HZ
1830 config SYS_SUPPORTS_128HZ
1833 config SYS_SUPPORTS_250HZ
1836 config SYS_SUPPORTS_256HZ
1839 config SYS_SUPPORTS_1000HZ
1842 config SYS_SUPPORTS_1024HZ
1845 config SYS_SUPPORTS_ARBIT_HZ
1847 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1848 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1849 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1850 !SYS_SUPPORTS_1024HZ
1855 default 100 if HZ_100
1856 default 128 if HZ_128
1857 default 250 if HZ_250
1858 default 256 if HZ_256
1859 default 1000 if HZ_1000
1860 default 1024 if HZ_1024
1862 source "kernel/Kconfig.preempt"
1865 bool "DS1742 BRAM/RTC support"
1866 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1868 config MIPS_INSANE_LARGE
1869 bool "Support for large 64-bit configurations"
1870 depends on CPU_R10000 && 64BIT
1872 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1873 previous 64-bit processors which only supported 40 bit / 1TB. If you
1874 need processes of more than 1TB virtual address space, say Y here.
1875 This will result in additional memory usage, so it is not
1876 recommended for normal users.
1879 bool "Kexec system call (EXPERIMENTAL)"
1880 depends on EXPERIMENTAL
1882 kexec is a system call that implements the ability to shutdown your
1883 current kernel, and to start another kernel. It is like a reboot
1884 but it is indepedent of the system firmware. And like a reboot
1885 you can start any kernel with it, not just Linux.
1887 The name comes from the similiarity to the exec system call.
1889 It is an ongoing process to be certain the hardware in a machine
1890 is properly shutdown, so do not be surprised if this code does not
1891 initially work for you. It may help to enable device hotplugging
1892 support. As of this writing the exact hardware interface is
1893 strongly in flux, so no good recommendation can be made.
1896 bool "Enable seccomp to safely compute untrusted bytecode"
1897 depends on PROC_FS && BROKEN
1900 This kernel feature is useful for number crunching applications
1901 that may need to compute untrusted bytecode during their
1902 execution. By using pipes or other transports made available to
1903 the process as file descriptors supporting the read/write
1904 syscalls, it's possible to isolate those applications in
1905 their own address space using seccomp. Once seccomp is
1906 enabled via /proc/<pid>/seccomp, it cannot be disabled
1907 and the task is only allowed to execute a few safe syscalls
1908 defined by each seccomp mode.
1910 If unsure, say Y. Only embedded should say N here.
1914 config RWSEM_GENERIC_SPINLOCK
1918 config LOCKDEP_SUPPORT
1922 config STACKTRACE_SUPPORT
1926 source "init/Kconfig"
1928 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1936 bool "Support for PCI controller"
1937 depends on HW_HAS_PCI
1939 Find out whether you have a PCI motherboard. PCI is the name of a
1940 bus system, i.e. the way the CPU talks to the other stuff inside
1941 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1944 The PCI-HOWTO, available from
1945 <http://www.tldp.org/docs.html#howto>, contains valuable
1946 information about which PCI hardware does work under Linux and which
1953 source "drivers/pci/Kconfig"
1956 # ISA support is now enabled via select. Too many systems still have the one
1957 # or other ISA chip on the board that users don't know about so don't expect
1958 # users to choose the right thing ...
1965 depends on HW_HAS_EISA
1967 select GENERIC_ISA_DMA
1969 The Extended Industry Standard Architecture (EISA) bus was
1970 developed as an open alternative to the IBM MicroChannel bus.
1972 The EISA bus provided some of the features of the IBM MicroChannel
1973 bus while maintaining backward compatibility with cards made for
1974 the older ISA bus. The EISA bus saw limited use between 1988 and
1975 1995 when it was made obsolete by the PCI bus.
1977 Say Y here if you are building a kernel for an EISA-based machine.
1981 source "drivers/eisa/Kconfig"
1984 bool "TURBOchannel support"
1985 depends on MACH_DECSTATION
1987 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1988 processors. Documentation on writing device drivers for TurboChannel
1990 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1993 # bool "Access.Bus support"
2003 source "drivers/pcmcia/Kconfig"
2005 source "drivers/pci/hotplug/Kconfig"
2009 menu "Executable file formats"
2011 source "fs/Kconfig.binfmt"
2017 bool "Use 64-bit ELF format for building"
2020 A 64-bit kernel is usually built using the 64-bit ELF binary object
2021 format as it's one that allows arbitrary 64-bit constructs. For
2022 kernels that are loaded within the KSEG compatibility segments the
2023 32-bit ELF format can optionally be used resulting in a somewhat
2024 smaller binary, but this option is not explicitly supported by the
2025 toolchain and since binutils 2.14 it does not even work at all.
2027 Say Y to use the 64-bit format or N to use the 32-bit one.
2032 bool "Include IRIX binary compatibility"
2033 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
2035 config MIPS32_COMPAT
2036 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2039 Select this option if you want Linux/MIPS 32-bit binary
2040 compatibility. Since all software available for Linux/MIPS is
2041 currently 32-bit you should say Y here.
2045 depends on MIPS32_COMPAT
2048 config SYSVIPC_COMPAT
2050 depends on COMPAT && SYSVIPC
2054 bool "Kernel support for o32 binaries"
2055 depends on MIPS32_COMPAT
2057 Select this option if you want to run o32 binaries. These are pure
2058 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2059 existing binaries are in this format.
2064 bool "Kernel support for n32 binaries"
2065 depends on MIPS32_COMPAT
2067 Select this option if you want to run n32 binaries. These are
2068 64-bit binaries using 32-bit quantities for addressing and certain
2069 data that would normally be 64-bit. They are used in special
2076 default y if MIPS32_O32 || MIPS32_N32
2080 menu "Power management options"
2082 source "kernel/power/Kconfig"
2086 source "net/Kconfig"
2088 source "drivers/Kconfig"
2092 source "arch/mips/oprofile/Kconfig"
2094 source "arch/mips/Kconfig.debug"
2096 source "security/Kconfig"
2098 source "crypto/Kconfig"
2100 source "lib/Kconfig"