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_LITTLE_ENDIAN
757 select SYS_SUPPORTS_BIG_ENDIAN
758 select TOSHIBA_BOARDS
760 config TOSHIBA_RBTX4927
761 bool "Toshiba TBTX49[23]7 board"
762 select DMA_NONCOHERENT
763 select HAS_TXX9_SERIAL
768 select SYS_HAS_CPU_TX49XX
769 select SYS_SUPPORTS_32BIT_KERNEL
770 select SYS_SUPPORTS_64BIT_KERNEL
771 select SYS_SUPPORTS_LITTLE_ENDIAN
772 select SYS_SUPPORTS_BIG_ENDIAN
773 select TOSHIBA_BOARDS
774 select GENERIC_HARDIRQS_NO__DO_IRQ
776 This Toshiba board is based on the TX4927 processor. Say Y here to
777 support this machine type
779 config TOSHIBA_RBTX4938
780 bool "Toshiba RBTX4938 board"
781 select HAVE_STD_PC_SERIAL_PORT
782 select DMA_NONCOHERENT
783 select GENERIC_ISA_DMA
784 select HAS_TXX9_SERIAL
789 select SYS_HAS_CPU_TX49XX
790 select SYS_SUPPORTS_32BIT_KERNEL
791 select SYS_SUPPORTS_LITTLE_ENDIAN
792 select SYS_SUPPORTS_BIG_ENDIAN
793 select TOSHIBA_BOARDS
794 select GENERIC_HARDIRQS_NO__DO_IRQ
796 This Toshiba board is based on the TX4938 processor. Say Y here to
797 support this machine type
801 source "arch/mips/ddb5xxx/Kconfig"
802 source "arch/mips/gt64120/ev64120/Kconfig"
803 source "arch/mips/jazz/Kconfig"
804 source "arch/mips/lasat/Kconfig"
805 source "arch/mips/momentum/Kconfig"
806 source "arch/mips/pmc-sierra/Kconfig"
807 source "arch/mips/sgi-ip27/Kconfig"
808 source "arch/mips/sibyte/Kconfig"
809 source "arch/mips/tx4927/Kconfig"
810 source "arch/mips/tx4938/Kconfig"
811 source "arch/mips/vr41xx/Kconfig"
812 source "arch/mips/philips/pnx8550/common/Kconfig"
813 source "arch/mips/cobalt/Kconfig"
817 config RWSEM_GENERIC_SPINLOCK
821 config RWSEM_XCHGADD_ALGORITHM
824 config ARCH_HAS_ILOG2_U32
828 config ARCH_HAS_ILOG2_U64
832 config GENERIC_FIND_NEXT_BIT
836 config GENERIC_HWEIGHT
840 config GENERIC_CALIBRATE_DELAY
848 config SCHED_NO_NO_OMIT_FRAME_POINTER
852 config GENERIC_HARDIRQS_NO__DO_IRQ
857 # Select some configuration options automatically based on user selections.
862 config ARCH_MAY_HAVE_PC_FDC
873 select DMA_NEED_PCI_MAP_STATE
875 config DMA_NONCOHERENT
877 select DMA_NEED_PCI_MAP_STATE
879 config DMA_NEED_PCI_MAP_STATE
888 config GENERIC_ISA_DMA
897 select SYS_SUPPORTS_HIGHMEM
908 config MIPS_DISABLE_OBSOLETE_IDE
911 config GENERIC_ISA_DMA_SUPPORT_BROKEN
915 # Endianess selection. Sufficiently obscure so many users don't know what to
916 # answer,so we try hard to limit the available choices. Also the use of a
917 # choice statement should be more obvious to the user.
920 prompt "Endianess selection"
922 Some MIPS machines can be configured for either little or big endian
923 byte order. These modes require different kernels and a different
924 Linux distribution. In general there is one preferred byteorder for a
925 particular system but some systems are just as commonly used in the
926 one or the other endianess.
928 config CPU_BIG_ENDIAN
930 depends on SYS_SUPPORTS_BIG_ENDIAN
932 config CPU_LITTLE_ENDIAN
934 depends on SYS_SUPPORTS_LITTLE_ENDIAN
939 config SYS_SUPPORTS_APM_EMULATION
942 config SYS_SUPPORTS_BIG_ENDIAN
945 config SYS_SUPPORTS_LITTLE_ENDIAN
960 config DDB5XXX_COMMON
963 config MIPS_BOARDS_GEN
974 select HAS_TXX9_SERIAL
1007 select SYS_HAS_CPU_MIPS32_R1
1008 select SYS_SUPPORTS_32BIT_KERNEL
1009 select SYS_SUPPORTS_APM_EMULATION
1017 select DMA_NONCOHERENT
1019 select SYS_HAS_CPU_MIPS32_R1
1020 select SYS_SUPPORTS_32BIT_KERNEL
1021 select GENERIC_HARDIRQS_NO__DO_IRQ
1023 config SWAP_IO_SPACE
1031 config SERIAL_RM9000
1041 # Unfortunately not all GT64120 systems run the chip at the same clock.
1042 # As the user for the clock rate and try to minimize the available options.
1045 prompt "Galileo Chip Clock"
1046 #default SYSCLK_83 if MIPS_EV64120
1047 depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1048 default SYSCLK_83 if MIPS_EV64120
1049 default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
1052 bool "75" if MIPS_EV64120
1055 bool "83.3" if MIPS_EV64120
1058 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1068 config MIPS_L1_CACHE_SHIFT
1070 default "4" if MACH_DECSTATION
1071 default "7" if SGI_IP27
1074 config HAVE_STD_PC_SERIAL_PORT
1078 bool "ARC console support"
1079 depends on SGI_IP22 || SNI_RM
1083 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1088 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1097 config TOSHIBA_BOARDS
1100 menu "CPU selection"
1106 config CPU_MIPS32_R1
1107 bool "MIPS32 Release 1"
1108 depends on SYS_HAS_CPU_MIPS32_R1
1110 select CPU_HAS_PREFETCH
1111 select CPU_SUPPORTS_32BIT_KERNEL
1112 select CPU_SUPPORTS_HIGHMEM
1114 Choose this option to build a kernel for release 1 or later of the
1115 MIPS32 architecture. Most modern embedded systems with a 32-bit
1116 MIPS processor are based on a MIPS32 processor. If you know the
1117 specific type of processor in your system, choose those that one
1118 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1119 Release 2 of the MIPS32 architecture is available since several
1120 years so chances are you even have a MIPS32 Release 2 processor
1121 in which case you should choose CPU_MIPS32_R2 instead for better
1124 config CPU_MIPS32_R2
1125 bool "MIPS32 Release 2"
1126 depends on SYS_HAS_CPU_MIPS32_R2
1128 select CPU_HAS_PREFETCH
1129 select CPU_SUPPORTS_32BIT_KERNEL
1130 select CPU_SUPPORTS_HIGHMEM
1132 Choose this option to build a kernel for release 2 or later of the
1133 MIPS32 architecture. Most modern embedded systems with a 32-bit
1134 MIPS processor are based on a MIPS32 processor. If you know the
1135 specific type of processor in your system, choose those that one
1136 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1138 config CPU_MIPS64_R1
1139 bool "MIPS64 Release 1"
1140 depends on SYS_HAS_CPU_MIPS64_R1
1142 select CPU_HAS_PREFETCH
1143 select CPU_SUPPORTS_32BIT_KERNEL
1144 select CPU_SUPPORTS_64BIT_KERNEL
1145 select CPU_SUPPORTS_HIGHMEM
1147 Choose this option to build a kernel for release 1 or later of the
1148 MIPS64 architecture. Many modern embedded systems with a 64-bit
1149 MIPS processor are based on a MIPS64 processor. If you know the
1150 specific type of processor in your system, choose those that one
1151 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1152 Release 2 of the MIPS64 architecture is available since several
1153 years so chances are you even have a MIPS64 Release 2 processor
1154 in which case you should choose CPU_MIPS64_R2 instead for better
1157 config CPU_MIPS64_R2
1158 bool "MIPS64 Release 2"
1159 depends on SYS_HAS_CPU_MIPS64_R2
1161 select CPU_HAS_PREFETCH
1162 select CPU_SUPPORTS_32BIT_KERNEL
1163 select CPU_SUPPORTS_64BIT_KERNEL
1164 select CPU_SUPPORTS_HIGHMEM
1166 Choose this option to build a kernel for release 2 or later of the
1167 MIPS64 architecture. Many modern embedded systems with a 64-bit
1168 MIPS processor are based on a MIPS64 processor. If you know the
1169 specific type of processor in your system, choose those that one
1170 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1174 depends on SYS_HAS_CPU_R3000
1176 select CPU_SUPPORTS_32BIT_KERNEL
1177 select CPU_SUPPORTS_HIGHMEM
1179 Please make sure to pick the right CPU type. Linux/MIPS is not
1180 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1181 *not* work on R4000 machines and vice versa. However, since most
1182 of the supported machines have an R4000 (or similar) CPU, R4x00
1183 might be a safe bet. If the resulting kernel does not work,
1184 try to recompile with R3000.
1188 depends on SYS_HAS_CPU_TX39XX
1189 select CPU_SUPPORTS_32BIT_KERNEL
1193 depends on SYS_HAS_CPU_VR41XX
1194 select CPU_SUPPORTS_32BIT_KERNEL
1195 select CPU_SUPPORTS_64BIT_KERNEL
1197 The options selects support for the NEC VR4100 series of processors.
1198 Only choose this option if you have one of these processors as a
1199 kernel built with this option will not run on any other type of
1200 processor or vice versa.
1204 depends on SYS_HAS_CPU_R4300
1206 select CPU_SUPPORTS_32BIT_KERNEL
1207 select CPU_SUPPORTS_64BIT_KERNEL
1209 MIPS Technologies R4300-series processors.
1213 depends on SYS_HAS_CPU_R4X00
1215 select CPU_SUPPORTS_32BIT_KERNEL
1216 select CPU_SUPPORTS_64BIT_KERNEL
1218 MIPS Technologies R4000-series processors other than 4300, including
1219 the R4000, R4400, R4600, and 4700.
1223 depends on SYS_HAS_CPU_TX49XX
1225 select CPU_HAS_PREFETCH
1226 select CPU_SUPPORTS_32BIT_KERNEL
1227 select CPU_SUPPORTS_64BIT_KERNEL
1231 depends on SYS_HAS_CPU_R5000
1233 select CPU_SUPPORTS_32BIT_KERNEL
1234 select CPU_SUPPORTS_64BIT_KERNEL
1236 MIPS Technologies R5000-series processors other than the Nevada.
1240 depends on SYS_HAS_CPU_R5432
1242 select CPU_SUPPORTS_32BIT_KERNEL
1243 select CPU_SUPPORTS_64BIT_KERNEL
1247 depends on EXPERIMENTAL
1249 depends on SYS_HAS_CPU_R6000
1250 select CPU_SUPPORTS_32BIT_KERNEL
1252 MIPS Technologies R6000 and R6000A series processors. Note these
1253 processors are extremely rare and the support for them is incomplete.
1257 depends on SYS_HAS_CPU_NEVADA
1259 select CPU_SUPPORTS_32BIT_KERNEL
1260 select CPU_SUPPORTS_64BIT_KERNEL
1262 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1266 depends on EXPERIMENTAL
1267 depends on SYS_HAS_CPU_R8000
1269 select CPU_HAS_PREFETCH
1270 select CPU_SUPPORTS_64BIT_KERNEL
1272 MIPS Technologies R8000 processors. Note these processors are
1273 uncommon and the support for them is incomplete.
1277 depends on SYS_HAS_CPU_R10000
1279 select CPU_HAS_PREFETCH
1280 select CPU_SUPPORTS_32BIT_KERNEL
1281 select CPU_SUPPORTS_64BIT_KERNEL
1282 select CPU_SUPPORTS_HIGHMEM
1284 MIPS Technologies R10000-series processors.
1288 depends on SYS_HAS_CPU_RM7000
1290 select CPU_HAS_PREFETCH
1291 select CPU_SUPPORTS_32BIT_KERNEL
1292 select CPU_SUPPORTS_64BIT_KERNEL
1293 select CPU_SUPPORTS_HIGHMEM
1297 depends on SYS_HAS_CPU_RM9000
1299 select CPU_HAS_PREFETCH
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301 select CPU_SUPPORTS_64BIT_KERNEL
1302 select CPU_SUPPORTS_HIGHMEM
1303 select WEAK_ORDERING
1307 depends on SYS_HAS_CPU_SB1
1309 select CPU_SUPPORTS_32BIT_KERNEL
1310 select CPU_SUPPORTS_64BIT_KERNEL
1311 select CPU_SUPPORTS_HIGHMEM
1312 select WEAK_ORDERING
1316 config SYS_HAS_CPU_MIPS32_R1
1319 config SYS_HAS_CPU_MIPS32_R2
1322 config SYS_HAS_CPU_MIPS64_R1
1325 config SYS_HAS_CPU_MIPS64_R2
1328 config SYS_HAS_CPU_R3000
1331 config SYS_HAS_CPU_TX39XX
1334 config SYS_HAS_CPU_VR41XX
1337 config SYS_HAS_CPU_R4300
1340 config SYS_HAS_CPU_R4X00
1343 config SYS_HAS_CPU_TX49XX
1346 config SYS_HAS_CPU_R5000
1349 config SYS_HAS_CPU_R5432
1352 config SYS_HAS_CPU_R6000
1355 config SYS_HAS_CPU_NEVADA
1358 config SYS_HAS_CPU_R8000
1361 config SYS_HAS_CPU_R10000
1364 config SYS_HAS_CPU_RM7000
1367 config SYS_HAS_CPU_RM9000
1370 config SYS_HAS_CPU_SB1
1373 config WEAK_ORDERING
1378 # These two indicate any level of the MIPS32 and MIPS64 architecture
1382 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1386 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1389 # These two indicate the revision of the architecture, either Release 1 or Release 2
1393 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1397 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1399 config SYS_SUPPORTS_32BIT_KERNEL
1401 config SYS_SUPPORTS_64BIT_KERNEL
1403 config CPU_SUPPORTS_32BIT_KERNEL
1405 config CPU_SUPPORTS_64BIT_KERNEL
1412 prompt "Kernel code model"
1414 You should only select this option if you have a workload that
1415 actually benefits from 64-bit processing or if your machine has
1416 large memory. You will only be presented a single option in this
1417 menu if your system does not support both 32-bit and 64-bit kernels.
1420 bool "32-bit kernel"
1421 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1424 Select this option if you want to build a 32-bit kernel.
1426 bool "64-bit kernel"
1427 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1429 Select this option if you want to build a 64-bit kernel.
1434 prompt "Kernel page size"
1435 default PAGE_SIZE_4KB
1437 config PAGE_SIZE_4KB
1440 This option select the standard 4kB Linux page size. On some
1441 R3000-family processors this is the only available page size. Using
1442 4kB page size will minimize memory consumption and is therefore
1443 recommended for low memory systems.
1445 config PAGE_SIZE_8KB
1447 depends on EXPERIMENTAL && CPU_R8000
1449 Using 8kB page size will result in higher performance kernel at
1450 the price of higher memory consumption. This option is available
1451 only on the R8000 processor. Not that at the time of this writing
1452 this option is still high experimental; there are also issues with
1453 compatibility of user applications.
1455 config PAGE_SIZE_16KB
1457 depends on !CPU_R3000 && !CPU_TX39XX
1459 Using 16kB page size will result in higher performance kernel at
1460 the price of higher memory consumption. This option is available on
1461 all non-R3000 family processors. Note that you will need a suitable
1462 Linux distribution to support this.
1464 config PAGE_SIZE_64KB
1466 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1468 Using 64kB page size will result in higher performance kernel at
1469 the price of higher memory consumption. This option is available on
1470 all non-R3000 family processor. Not that at the time of this
1471 writing this option is still high experimental.
1478 config IP22_CPU_SCACHE
1483 # Support for a MIPS32 / MIPS64 style S-caches
1485 config MIPS_CPU_SCACHE
1489 config R5000_CPU_SCACHE
1493 config RM7000_CPU_SCACHE
1497 config SIBYTE_DMA_PAGEOPS
1498 bool "Use DMA to clear/copy pages"
1501 Instead of using the CPU to zero and copy pages, use a Data Mover
1502 channel. These DMA channels are otherwise unused by the standard
1503 SiByte Linux port. Seems to give a small performance benefit.
1505 config CPU_HAS_PREFETCH
1509 prompt "MIPS MT options"
1511 config MIPS_MT_DISABLED
1512 bool "Disable multithreading support."
1514 Use this option if your workload can't take advantage of
1515 MIPS hardware multithreading support. On systems that don't have
1516 the option of an MT-enabled processor this option will be the only
1517 option in this menu.
1520 bool "Use 1 TC on each available VPE for SMP"
1521 depends on SYS_SUPPORTS_MULTITHREADING
1522 select CPU_MIPSR2_IRQ_VI
1523 select CPU_MIPSR2_SRS
1526 select SYS_SUPPORTS_SMP
1528 This is a kernel model which is also known a VSMP or lately
1529 has been marketesed into SMVP.
1532 bool "SMTC: Use all TCs on all VPEs for SMP"
1533 depends on CPU_MIPS32_R2
1534 #depends on CPU_MIPS64_R2 # once there is hardware ...
1535 depends on SYS_SUPPORTS_MULTITHREADING
1536 select CPU_MIPSR2_IRQ_VI
1537 select CPU_MIPSR2_SRS
1539 select NR_CPUS_DEFAULT_2
1540 select NR_CPUS_DEFAULT_8
1542 select SYS_SUPPORTS_SMP
1544 This is a kernel model which is known a SMTC or lately has been
1545 marketesed into SMVP.
1547 config MIPS_VPE_LOADER
1548 bool "VPE loader support."
1549 depends on SYS_SUPPORTS_MULTITHREADING
1552 Includes a loader for loading an elf relocatable object
1553 onto another VPE and running it.
1560 config SYS_SUPPORTS_MULTITHREADING
1563 config MIPS_MT_FPAFF
1564 bool "Dynamic FPU affinity for FP-intensive threads"
1568 config MIPS_MT_SMTC_INSTANT_REPLAY
1569 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1570 depends on MIPS_MT_SMTC
1573 SMTC pseudo-interrupts between TCs are deferred and queued
1574 if the target TC is interrupt-inhibited (IXMT). In the first
1575 SMTC prototypes, these queued IPIs were serviced on return
1576 to user mode, or on entry into the kernel idle loop. The
1577 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1578 processing, which adds runtime overhead (hence the option to turn
1579 it off), but ensures that IPIs are handled promptly even under
1580 heavy I/O interrupt load.
1582 config MIPS_VPE_LOADER_TOM
1583 bool "Load VPE program into memory hidden from linux"
1584 depends on MIPS_VPE_LOADER
1587 The loader can use memory that is present but has been hidden from
1588 Linux using the kernel command line option "mem=xxMB". It's up to
1589 you to ensure the amount you put in the option and the space your
1590 program requires is less or equal to the amount physically present.
1592 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1593 config MIPS_VPE_APSP_API
1594 bool "Enable support for AP/SP API (RTLX)"
1595 depends on MIPS_VPE_LOADER
1598 config MIPS_APSP_KSPD
1600 depends on MIPS_VPE_APSP_API
1603 KSPD is a kernel daemon that accepts syscall requests from the SP
1604 side, actions them and returns the results. It also handles the
1605 "exit" syscall notifying other kernel modules the SP program is
1606 exiting. You probably want to say yes here.
1608 config SB1_PASS_1_WORKAROUNDS
1610 depends on CPU_SB1_PASS_1
1613 config SB1_PASS_2_WORKAROUNDS
1615 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1618 config SB1_PASS_2_1_WORKAROUNDS
1620 depends on CPU_SB1 && CPU_SB1_PASS_2
1623 config 64BIT_PHYS_ADDR
1624 bool "Support for 64-bit physical address space"
1625 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1634 # Vectored interrupt mode is an R2 feature
1636 config CPU_MIPSR2_IRQ_VI
1640 # Extended interrupt mode is an R2 feature
1642 config CPU_MIPSR2_IRQ_EI
1646 # Shadow registers are an R2 feature
1648 config CPU_MIPSR2_SRS
1653 depends on !CPU_R3000
1657 # Use the generic interrupt handling code in kernel/irq/:
1659 config GENERIC_HARDIRQS
1663 config GENERIC_IRQ_PROBE
1671 # - Highmem only makes sense for the 32-bit kernel.
1672 # - The current highmem code will only work properly on physically indexed
1673 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1674 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1675 # moment we protect the user and offer the highmem option only on machines
1676 # where it's known to be safe. This will not offer highmem on a few systems
1677 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1678 # indexed CPUs but we're playing safe.
1679 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1680 # know they might have memory configurations that could make use of highmem
1684 bool "High Memory Support"
1685 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1687 config CPU_SUPPORTS_HIGHMEM
1690 config SYS_SUPPORTS_HIGHMEM
1693 config ARCH_FLATMEM_ENABLE
1697 config ARCH_DISCONTIGMEM_ENABLE
1699 default y if SGI_IP27
1701 Say Y to upport efficient handling of discontiguous physical memory,
1702 for architectures which are either NUMA (Non-Uniform Memory Access)
1703 or have huge holes in the physical address space for other reasons.
1704 See <file:Documentation/vm/numa> for more.
1706 config ARCH_SPARSEMEM_ENABLE
1708 select SPARSEMEM_STATIC
1712 depends on SYS_SUPPORTS_NUMA
1714 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1715 Access). This option improves performance on systems with more
1716 than two nodes; on two node systems it is generally better to
1717 leave it disabled; on single node systems disable this option
1720 config SYS_SUPPORTS_NUMA
1726 depends on NEED_MULTIPLE_NODES
1731 bool "Multi-Processing support"
1732 depends on SYS_SUPPORTS_SMP
1735 This enables support for systems with more than one CPU. If you have
1736 a system with only one CPU, like most personal computers, say N. If
1737 you have a system with more than one CPU, say Y.
1739 If you say N here, the kernel will run on single and multiprocessor
1740 machines, but will use only one CPU of a multiprocessor machine. If
1741 you say Y here, the kernel will run on many, but not all,
1742 singleprocessor machines. On a singleprocessor machine, the kernel
1743 will run faster if you say N here.
1745 People using multiprocessor machines who say Y here should also say
1746 Y to "Enhanced Real Time Clock Support", below.
1748 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1749 available at <http://www.tldp.org/docs.html#howto>.
1751 If you don't know what to do here, say N.
1753 config SYS_SUPPORTS_SMP
1756 config NR_CPUS_DEFAULT_2
1759 config NR_CPUS_DEFAULT_4
1762 config NR_CPUS_DEFAULT_8
1765 config NR_CPUS_DEFAULT_16
1768 config NR_CPUS_DEFAULT_32
1771 config NR_CPUS_DEFAULT_64
1775 int "Maximum number of CPUs (2-64)"
1778 default "2" if NR_CPUS_DEFAULT_2
1779 default "4" if NR_CPUS_DEFAULT_4
1780 default "8" if NR_CPUS_DEFAULT_8
1781 default "16" if NR_CPUS_DEFAULT_16
1782 default "32" if NR_CPUS_DEFAULT_32
1783 default "64" if NR_CPUS_DEFAULT_64
1785 This allows you to specify the maximum number of CPUs which this
1786 kernel will support. The maximum supported value is 32 for 32-bit
1787 kernel and 64 for 64-bit kernels; the minimum value which makes
1790 This is purely to save memory - each supported CPU adds
1791 approximately eight kilobytes to the kernel image.
1794 # Timer Interrupt Frequency Configuration
1798 prompt "Timer frequency"
1801 Allows the configuration of the timer frequency.
1804 bool "48 HZ" if SYS_SUPPORTS_48HZ
1807 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1810 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1813 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1816 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1819 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1822 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1826 config SYS_SUPPORTS_48HZ
1829 config SYS_SUPPORTS_100HZ
1832 config SYS_SUPPORTS_128HZ
1835 config SYS_SUPPORTS_250HZ
1838 config SYS_SUPPORTS_256HZ
1841 config SYS_SUPPORTS_1000HZ
1844 config SYS_SUPPORTS_1024HZ
1847 config SYS_SUPPORTS_ARBIT_HZ
1849 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1850 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1851 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1852 !SYS_SUPPORTS_1024HZ
1857 default 100 if HZ_100
1858 default 128 if HZ_128
1859 default 250 if HZ_250
1860 default 256 if HZ_256
1861 default 1000 if HZ_1000
1862 default 1024 if HZ_1024
1864 source "kernel/Kconfig.preempt"
1867 bool "DS1742 BRAM/RTC support"
1868 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1870 config MIPS_INSANE_LARGE
1871 bool "Support for large 64-bit configurations"
1872 depends on CPU_R10000 && 64BIT
1874 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1875 previous 64-bit processors which only supported 40 bit / 1TB. If you
1876 need processes of more than 1TB virtual address space, say Y here.
1877 This will result in additional memory usage, so it is not
1878 recommended for normal users.
1881 bool "Kexec system call (EXPERIMENTAL)"
1882 depends on EXPERIMENTAL
1884 kexec is a system call that implements the ability to shutdown your
1885 current kernel, and to start another kernel. It is like a reboot
1886 but it is indepedent of the system firmware. And like a reboot
1887 you can start any kernel with it, not just Linux.
1889 The name comes from the similiarity to the exec system call.
1891 It is an ongoing process to be certain the hardware in a machine
1892 is properly shutdown, so do not be surprised if this code does not
1893 initially work for you. It may help to enable device hotplugging
1894 support. As of this writing the exact hardware interface is
1895 strongly in flux, so no good recommendation can be made.
1898 bool "Enable seccomp to safely compute untrusted bytecode"
1899 depends on PROC_FS && BROKEN
1902 This kernel feature is useful for number crunching applications
1903 that may need to compute untrusted bytecode during their
1904 execution. By using pipes or other transports made available to
1905 the process as file descriptors supporting the read/write
1906 syscalls, it's possible to isolate those applications in
1907 their own address space using seccomp. Once seccomp is
1908 enabled via /proc/<pid>/seccomp, it cannot be disabled
1909 and the task is only allowed to execute a few safe syscalls
1910 defined by each seccomp mode.
1912 If unsure, say Y. Only embedded should say N here.
1916 config RWSEM_GENERIC_SPINLOCK
1920 config LOCKDEP_SUPPORT
1924 config STACKTRACE_SUPPORT
1928 source "init/Kconfig"
1930 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1938 bool "Support for PCI controller"
1939 depends on HW_HAS_PCI
1941 Find out whether you have a PCI motherboard. PCI is the name of a
1942 bus system, i.e. the way the CPU talks to the other stuff inside
1943 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1946 The PCI-HOWTO, available from
1947 <http://www.tldp.org/docs.html#howto>, contains valuable
1948 information about which PCI hardware does work under Linux and which
1955 source "drivers/pci/Kconfig"
1958 # ISA support is now enabled via select. Too many systems still have the one
1959 # or other ISA chip on the board that users don't know about so don't expect
1960 # users to choose the right thing ...
1967 depends on HW_HAS_EISA
1969 select GENERIC_ISA_DMA
1971 The Extended Industry Standard Architecture (EISA) bus was
1972 developed as an open alternative to the IBM MicroChannel bus.
1974 The EISA bus provided some of the features of the IBM MicroChannel
1975 bus while maintaining backward compatibility with cards made for
1976 the older ISA bus. The EISA bus saw limited use between 1988 and
1977 1995 when it was made obsolete by the PCI bus.
1979 Say Y here if you are building a kernel for an EISA-based machine.
1983 source "drivers/eisa/Kconfig"
1986 bool "TURBOchannel support"
1987 depends on MACH_DECSTATION
1989 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1990 processors. Documentation on writing device drivers for TurboChannel
1992 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1995 # bool "Access.Bus support"
2005 source "drivers/pcmcia/Kconfig"
2007 source "drivers/pci/hotplug/Kconfig"
2011 menu "Executable file formats"
2013 source "fs/Kconfig.binfmt"
2019 bool "Use 64-bit ELF format for building"
2022 A 64-bit kernel is usually built using the 64-bit ELF binary object
2023 format as it's one that allows arbitrary 64-bit constructs. For
2024 kernels that are loaded within the KSEG compatibility segments the
2025 32-bit ELF format can optionally be used resulting in a somewhat
2026 smaller binary, but this option is not explicitly supported by the
2027 toolchain and since binutils 2.14 it does not even work at all.
2029 Say Y to use the 64-bit format or N to use the 32-bit one.
2034 bool "Include IRIX binary compatibility"
2035 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
2037 config MIPS32_COMPAT
2038 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2041 Select this option if you want Linux/MIPS 32-bit binary
2042 compatibility. Since all software available for Linux/MIPS is
2043 currently 32-bit you should say Y here.
2047 depends on MIPS32_COMPAT
2050 config SYSVIPC_COMPAT
2052 depends on COMPAT && SYSVIPC
2056 bool "Kernel support for o32 binaries"
2057 depends on MIPS32_COMPAT
2059 Select this option if you want to run o32 binaries. These are pure
2060 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2061 existing binaries are in this format.
2066 bool "Kernel support for n32 binaries"
2067 depends on MIPS32_COMPAT
2069 Select this option if you want to run n32 binaries. These are
2070 64-bit binaries using 32-bit quantities for addressing and certain
2071 data that would normally be 64-bit. They are used in special
2078 default y if MIPS32_O32 || MIPS32_N32
2082 menu "Power management options"
2084 source "kernel/power/Kconfig"
2088 source "net/Kconfig"
2090 source "drivers/Kconfig"
2094 source "arch/mips/oprofile/Kconfig"
2096 source "arch/mips/Kconfig.debug"
2098 source "security/Kconfig"
2100 source "crypto/Kconfig"
2102 source "lib/Kconfig"