4 # Horrible source of confusion. Die, die, die ...
7 mainmenu "Linux/MIPS Kernel Configuration"
9 menu "Machine selection"
20 bool "4G Systems MTX-1 board"
21 select DMA_NONCOHERENT
23 select RESOURCES_64BIT if PCI
25 select SYS_HAS_CPU_MIPS32_R1
26 select SYS_SUPPORTS_LITTLE_ENDIAN
29 bool "AMD Alchemy Bosporus board"
31 select DMA_NONCOHERENT
32 select SYS_HAS_CPU_MIPS32_R1
33 select SYS_SUPPORTS_LITTLE_ENDIAN
36 bool "AMD Alchemy PB1000 board"
38 select DMA_NONCOHERENT
40 select RESOURCES_64BIT if PCI
42 select SYS_HAS_CPU_MIPS32_R1
43 select SYS_SUPPORTS_LITTLE_ENDIAN
46 bool "AMD Alchemy PB1100 board"
48 select DMA_NONCOHERENT
50 select RESOURCES_64BIT if PCI
52 select SYS_HAS_CPU_MIPS32_R1
53 select SYS_SUPPORTS_LITTLE_ENDIAN
56 bool "AMD Alchemy PB1500 board"
58 select DMA_NONCOHERENT
60 select RESOURCES_64BIT if PCI
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_LITTLE_ENDIAN
65 bool "AMD Alchemy PB1550 board"
67 select DMA_NONCOHERENT
69 select MIPS_DISABLE_OBSOLETE_IDE
70 select RESOURCES_64BIT if PCI
71 select SYS_HAS_CPU_MIPS32_R1
72 select SYS_SUPPORTS_LITTLE_ENDIAN
75 bool "AMD Alchemy PB1200 board"
77 select DMA_NONCOHERENT
78 select MIPS_DISABLE_OBSOLETE_IDE
79 select RESOURCES_64BIT if PCI
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_SUPPORTS_LITTLE_ENDIAN
84 bool "AMD Alchemy DB1000 board"
86 select DMA_NONCOHERENT
88 select RESOURCES_64BIT if PCI
89 select SYS_HAS_CPU_MIPS32_R1
90 select SYS_SUPPORTS_LITTLE_ENDIAN
93 bool "AMD Alchemy DB1100 board"
95 select DMA_NONCOHERENT
96 select SYS_HAS_CPU_MIPS32_R1
97 select SYS_SUPPORTS_LITTLE_ENDIAN
100 bool "AMD Alchemy DB1500 board"
102 select DMA_NONCOHERENT
104 select MIPS_DISABLE_OBSOLETE_IDE
105 select RESOURCES_64BIT if PCI
106 select SYS_HAS_CPU_MIPS32_R1
107 select SYS_SUPPORTS_BIG_ENDIAN
108 select SYS_SUPPORTS_LITTLE_ENDIAN
111 bool "AMD Alchemy DB1550 board"
114 select DMA_NONCOHERENT
115 select MIPS_DISABLE_OBSOLETE_IDE
116 select RESOURCES_64BIT if PCI
117 select SYS_HAS_CPU_MIPS32_R1
118 select SYS_SUPPORTS_LITTLE_ENDIAN
121 bool "AMD Alchemy DB1200 board"
124 select MIPS_DISABLE_OBSOLETE_IDE
125 select SYS_HAS_CPU_MIPS32_R1
126 select SYS_SUPPORTS_LITTLE_ENDIAN
129 bool "AMD Alchemy Mirage board"
130 select DMA_NONCOHERENT
132 select SYS_HAS_CPU_MIPS32_R1
133 select SYS_SUPPORTS_LITTLE_ENDIAN
136 bool "Basler eXcite smart camera support"
143 select SYS_HAS_CPU_RM9000
144 select SYS_SUPPORTS_32BIT_KERNEL
145 select SYS_SUPPORTS_64BIT_KERNEL
146 select SYS_SUPPORTS_BIG_ENDIAN
148 The eXcite is a smart camera platform manufactured by
149 Basler Vision Technologies AG
151 config BASLER_EXCITE_PROTOTYPE
152 bool "Support for pre-release units"
153 depends on BASLER_EXCITE
156 Pre-series (prototype) units are different from later ones in
157 some ways. Select this option if you have one of these. Please
158 note that a kernel built with this option selected will not be
159 able to run on normal units.
163 select DMA_NONCOHERENT
168 select SYS_HAS_CPU_NEVADA
169 select SYS_SUPPORTS_32BIT_KERNEL
170 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
171 select SYS_SUPPORTS_LITTLE_ENDIAN
172 select GENERIC_HARDIRQS_NO__DO_IRQ
174 config MACH_DECSTATION
177 select DMA_NONCOHERENT
180 select SYS_HAS_CPU_R3000
181 select SYS_HAS_CPU_R4X00
182 select SYS_SUPPORTS_32BIT_KERNEL
183 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
184 select SYS_SUPPORTS_LITTLE_ENDIAN
185 select SYS_SUPPORTS_128HZ
186 select SYS_SUPPORTS_256HZ
187 select SYS_SUPPORTS_1024HZ
189 This enables support for DEC's MIPS based workstations. For details
190 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
191 DECstation porting pages on <http://decstation.unix-ag.org/>.
193 If you have one of the following DECstation Models you definitely
194 want to choose R4xx0 for the CPU Type:
201 otherwise choose R3000.
204 bool "Galileo EV64120 Evaluation board (EXPERIMENTAL)"
205 depends on EXPERIMENTAL
206 select DMA_NONCOHERENT
209 select SYS_HAS_CPU_R5000
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_64BIT_KERNEL
212 select SYS_SUPPORTS_BIG_ENDIAN
214 This is an evaluation board based on the Galileo GT-64120
215 single-chip system controller that contains a MIPS R5000 compatible
216 core running at 75/100MHz. Their website is located at
217 <http://www.marvell.com/>. Say Y here if you wish to build a
218 kernel for this platform.
221 bool "Jazz family of machines"
224 select ARCH_MAY_HAVE_PC_FDC
225 select GENERIC_ISA_DMA
229 select SYS_HAS_CPU_R4X00
230 select SYS_SUPPORTS_32BIT_KERNEL
231 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
232 select SYS_SUPPORTS_100HZ
233 select GENERIC_HARDIRQS_NO__DO_IRQ
235 This a family of machines based on the MIPS R4030 chipset which was
236 used by several vendors to build RISC/os and Windows NT workstations.
237 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
238 Olivetti M700-10 workstations.
241 bool "LASAT Networks platforms"
242 select DMA_NONCOHERENT
246 select R5000_CPU_SCACHE
247 select SYS_HAS_CPU_R5000
248 select SYS_SUPPORTS_32BIT_KERNEL
249 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
250 select SYS_SUPPORTS_LITTLE_ENDIAN
251 select GENERIC_HARDIRQS_NO__DO_IRQ
254 bool "MIPS Atlas board"
256 select DMA_NONCOHERENT
259 select MIPS_BOARDS_GEN
263 select RM7000_CPU_SCACHE
265 select SYS_HAS_CPU_MIPS32_R1
266 select SYS_HAS_CPU_MIPS32_R2
267 select SYS_HAS_CPU_MIPS64_R1
268 select SYS_HAS_CPU_NEVADA
269 select SYS_HAS_CPU_RM7000
270 select SYS_SUPPORTS_32BIT_KERNEL
271 select SYS_SUPPORTS_64BIT_KERNEL
272 select SYS_SUPPORTS_BIG_ENDIAN
273 select SYS_SUPPORTS_LITTLE_ENDIAN
274 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
275 select GENERIC_HARDIRQS_NO__DO_IRQ
277 This enables support for the MIPS Technologies Atlas evaluation
281 bool "MIPS Malta board"
282 select ARCH_MAY_HAVE_PC_FDC
284 select HAVE_STD_PC_SERIAL_PORT
285 select DMA_NONCOHERENT
286 select GENERIC_ISA_DMA
290 select MIPS_BOARDS_GEN
292 select MIPS_CPU_SCACHE
296 select SYS_HAS_CPU_MIPS32_R1
297 select SYS_HAS_CPU_MIPS32_R2
298 select SYS_HAS_CPU_MIPS64_R1
299 select SYS_HAS_CPU_NEVADA
300 select SYS_HAS_CPU_RM7000
301 select SYS_SUPPORTS_32BIT_KERNEL
302 select SYS_SUPPORTS_64BIT_KERNEL
303 select SYS_SUPPORTS_BIG_ENDIAN
304 select SYS_SUPPORTS_LITTLE_ENDIAN
305 select SYS_SUPPORTS_MULTITHREADING
307 This enables support for the MIPS Technologies Malta evaluation
311 bool "MIPS SEAD board (EXPERIMENTAL)"
312 depends on EXPERIMENTAL
314 select DMA_NONCOHERENT
315 select MIPS_BOARDS_GEN
316 select SYS_HAS_CPU_MIPS32_R1
317 select SYS_HAS_CPU_MIPS32_R2
318 select SYS_HAS_CPU_MIPS64_R1
319 select SYS_SUPPORTS_32BIT_KERNEL
320 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
321 select SYS_SUPPORTS_BIG_ENDIAN
322 select SYS_SUPPORTS_LITTLE_ENDIAN
324 This enables support for the MIPS Technologies SEAD evaluation
328 bool "Wind River PPMC board"
331 select DMA_NONCOHERENT
335 select SYS_HAS_CPU_MIPS32_R1
336 select SYS_HAS_CPU_MIPS32_R2
337 select SYS_HAS_CPU_MIPS64_R1
338 select SYS_HAS_CPU_NEVADA
339 select SYS_HAS_CPU_RM7000
340 select SYS_SUPPORTS_32BIT_KERNEL
341 select SYS_SUPPORTS_64BIT_KERNEL
342 select SYS_SUPPORTS_BIG_ENDIAN
343 select SYS_SUPPORTS_LITTLE_ENDIAN
345 This enables support for the Wind River MIPS32 4KC PPMC evaluation
346 board, which is based on GT64120 bridge chip.
349 bool 'MIPS simulator (MIPSsim)'
350 select DMA_NONCOHERENT
352 select SYS_HAS_CPU_MIPS32_R1
353 select SYS_HAS_CPU_MIPS32_R2
354 select SYS_SUPPORTS_32BIT_KERNEL
355 select SYS_SUPPORTS_BIG_ENDIAN
356 select SYS_SUPPORTS_LITTLE_ENDIAN
358 This option enables support for MIPS Technologies MIPSsim software
361 config MOMENCO_JAGUAR_ATX
362 bool "Momentum Jaguar board"
364 select DMA_NONCOHERENT
371 select RM7000_CPU_SCACHE
373 select SYS_HAS_CPU_RM9000
374 select SYS_SUPPORTS_32BIT_KERNEL
375 select SYS_SUPPORTS_64BIT_KERNEL
376 select SYS_SUPPORTS_BIG_ENDIAN
378 The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
379 Momentum Computer <http://www.momenco.com/>.
381 config MOMENCO_OCELOT
382 bool "Momentum Ocelot board"
383 select DMA_NONCOHERENT
388 select RM7000_CPU_SCACHE
390 select SYS_HAS_CPU_RM7000
391 select SYS_SUPPORTS_32BIT_KERNEL
392 select SYS_SUPPORTS_64BIT_KERNEL
393 select SYS_SUPPORTS_BIG_ENDIAN
395 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
396 Momentum Computer <http://www.momenco.com/>.
398 config MOMENCO_OCELOT_3
399 bool "Momentum Ocelot-3 board"
401 select DMA_NONCOHERENT
407 select RM7000_CPU_SCACHE
409 select SYS_HAS_CPU_RM9000
410 select SYS_SUPPORTS_32BIT_KERNEL
411 select SYS_SUPPORTS_64BIT_KERNEL
412 select SYS_SUPPORTS_BIG_ENDIAN
414 The Ocelot-3 is based off Discovery III System Controller and
415 PMC-Sierra Rm79000 core.
417 config MOMENCO_OCELOT_C
418 bool "Momentum Ocelot-C board"
419 select DMA_NONCOHERENT
424 select RM7000_CPU_SCACHE
426 select SYS_HAS_CPU_RM7000
427 select SYS_SUPPORTS_32BIT_KERNEL
428 select SYS_SUPPORTS_64BIT_KERNEL
429 select SYS_SUPPORTS_BIG_ENDIAN
430 select GENERIC_HARDIRQS_NO__DO_IRQ
432 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
433 Momentum Computer <http://www.momenco.com/>.
435 config MOMENCO_OCELOT_G
436 bool "Momentum Ocelot-G board"
437 select DMA_NONCOHERENT
442 select RM7000_CPU_SCACHE
444 select SYS_HAS_CPU_RM7000
445 select SYS_SUPPORTS_32BIT_KERNEL
446 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
447 select SYS_SUPPORTS_BIG_ENDIAN
449 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
450 Momentum Computer <http://www.momenco.com/>.
453 bool "MyCable XXS1500 board"
454 select DMA_NONCOHERENT
456 select SYS_SUPPORTS_LITTLE_ENDIAN
459 bool "Philips PNX8550 based Viper2-PCI board"
461 select SYS_SUPPORTS_LITTLE_ENDIAN
464 bool "Philips PNX8550 based JBS board"
466 select SYS_SUPPORTS_LITTLE_ENDIAN
468 config PNX8550_STB810
469 bool "Support for Philips PNX8550 based STB810 board"
471 select SYS_SUPPORTS_LITTLE_ENDIAN
474 bool "NEC DDB Vrc-5477"
475 select DDB5XXX_COMMON
476 select DMA_NONCOHERENT
480 select SYS_HAS_CPU_R5432
481 select SYS_SUPPORTS_32BIT_KERNEL
482 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
483 select SYS_SUPPORTS_LITTLE_ENDIAN
485 This enables support for the R5432-based NEC DDB Vrc-5477,
486 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
488 Features : kernel debugging, serial terminal, NFS root fs, on-board
489 ether port USB, AC97, PCI, etc.
492 bool "NEC VR41XX-based machines"
493 select SYS_HAS_CPU_VR41XX
494 select SYS_SUPPORTS_32BIT_KERNEL
495 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
496 select GENERIC_HARDIRQS_NO__DO_IRQ
499 bool "PMC-Sierra Yosemite eval board"
506 select SYS_HAS_CPU_RM9000
507 select SYS_SUPPORTS_32BIT_KERNEL
508 select SYS_SUPPORTS_64BIT_KERNEL
509 select SYS_SUPPORTS_BIG_ENDIAN
510 select SYS_SUPPORTS_HIGHMEM
511 select SYS_SUPPORTS_SMP
513 Yosemite is an evaluation board for the RM9000x2 processor
514 manufactured by PMC-Sierra.
519 select GENERIC_ISA_DMA
520 select HAVE_STD_PC_SERIAL_PORT
525 select SYS_HAS_CPU_MIPS32_R1
526 select SYS_SUPPORTS_32BIT_KERNEL
527 select SYS_SUPPORTS_BIG_ENDIAN
528 select SYS_SUPPORTS_LITTLE_ENDIAN
529 select ARCH_SPARSEMEM_ENABLE
530 select GENERIC_HARDIRQS_NO__DO_IRQ
532 Qemu is a software emulator which among other architectures also
533 can simulate a MIPS32 4Kc system. This patch adds support for the
534 system architecture that currently is being simulated by Qemu. It
535 will eventually be removed again when Qemu has the capability to
536 simulate actual MIPS hardware platforms. More information on Qemu
537 can be found at http://www.linux-mips.org/wiki/Qemu.
540 bool "Support for NEC EMMA2RH Mark-eins"
541 select DMA_NONCOHERENT
545 select SYS_SUPPORTS_32BIT_KERNEL
546 select SYS_SUPPORTS_BIG_ENDIAN
547 select SYS_SUPPORTS_LITTLE_ENDIAN
548 select SYS_HAS_CPU_R5000
550 This enables support for the R5432-based NEC Mark-eins
551 boards with R5500 CPU.
554 bool "SGI IP22 (Indy/Indigo2)"
558 select DMA_NONCOHERENT
560 select IP22_CPU_SCACHE
562 select GENERIC_ISA_DMA_SUPPORT_BROKEN
564 select SYS_HAS_CPU_R4X00
565 select SYS_HAS_CPU_R5000
566 select SYS_SUPPORTS_32BIT_KERNEL
567 select SYS_SUPPORTS_64BIT_KERNEL
568 select SYS_SUPPORTS_BIG_ENDIAN
570 This are the SGI Indy, Challenge S and Indigo2, as well as certain
571 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
572 that runs on these, say Y here.
575 bool "SGI IP27 (Origin200/2000)"
582 select NR_CPUS_DEFAULT_64
584 select SYS_HAS_CPU_R10000
585 select SYS_SUPPORTS_64BIT_KERNEL
586 select SYS_SUPPORTS_BIG_ENDIAN
587 select SYS_SUPPORTS_NUMA
588 select SYS_SUPPORTS_SMP
589 select GENERIC_HARDIRQS_NO__DO_IRQ
591 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
592 workstations. To compile a Linux kernel that runs on these, say Y
596 bool "SGI IP32 (O2) (EXPERIMENTAL)"
597 depends on EXPERIMENTAL
603 select DMA_NONCOHERENT
605 select R5000_CPU_SCACHE
606 select RM7000_CPU_SCACHE
607 select SYS_HAS_CPU_R5000
608 select SYS_HAS_CPU_R10000 if BROKEN
609 select SYS_HAS_CPU_RM7000
610 select SYS_HAS_CPU_NEVADA
611 select SYS_SUPPORTS_64BIT_KERNEL
612 select SYS_SUPPORTS_BIG_ENDIAN
614 If you want this kernel to run on SGI O2 workstation, say Y here.
617 bool "Sibyte BCM91480B-BigSur"
620 select NR_CPUS_DEFAULT_4
622 select SIBYTE_BCM1x80
624 select SYS_HAS_CPU_SB1
625 select SYS_SUPPORTS_BIG_ENDIAN
626 select SYS_SUPPORTS_LITTLE_ENDIAN
629 bool "Sibyte BCM91250A-SWARM"
632 select NR_CPUS_DEFAULT_2
635 select SYS_HAS_CPU_SB1
636 select SYS_SUPPORTS_BIG_ENDIAN
637 select SYS_SUPPORTS_HIGHMEM
638 select SYS_SUPPORTS_LITTLE_ENDIAN
640 config SIBYTE_SENTOSA
641 bool "Sibyte BCM91250E-Sentosa"
642 depends on EXPERIMENTAL
645 select NR_CPUS_DEFAULT_2
648 select SYS_HAS_CPU_SB1
649 select SYS_SUPPORTS_BIG_ENDIAN
650 select SYS_SUPPORTS_LITTLE_ENDIAN
653 bool "Sibyte BCM91125E-Rhone"
654 depends on EXPERIMENTAL
657 select SIBYTE_BCM1125H
659 select SYS_HAS_CPU_SB1
660 select SYS_SUPPORTS_BIG_ENDIAN
661 select SYS_SUPPORTS_LITTLE_ENDIAN
664 bool "Sibyte BCM91120x-Carmel"
665 depends on EXPERIMENTAL
668 select SIBYTE_BCM1120
670 select SYS_HAS_CPU_SB1
671 select SYS_SUPPORTS_BIG_ENDIAN
672 select SYS_SUPPORTS_LITTLE_ENDIAN
674 config SIBYTE_PTSWARM
675 bool "Sibyte BCM91250PT-PTSWARM"
676 depends on EXPERIMENTAL
679 select NR_CPUS_DEFAULT_2
682 select SYS_HAS_CPU_SB1
683 select SYS_SUPPORTS_BIG_ENDIAN
684 select SYS_SUPPORTS_HIGHMEM
685 select SYS_SUPPORTS_LITTLE_ENDIAN
687 config SIBYTE_LITTLESUR
688 bool "Sibyte BCM91250C2-LittleSur"
689 depends on EXPERIMENTAL
692 select NR_CPUS_DEFAULT_2
695 select SYS_HAS_CPU_SB1
696 select SYS_SUPPORTS_BIG_ENDIAN
697 select SYS_SUPPORTS_HIGHMEM
698 select SYS_SUPPORTS_LITTLE_ENDIAN
701 bool "Sibyte BCM91120C-CRhine"
702 depends on EXPERIMENTAL
705 select SIBYTE_BCM1120
707 select SYS_HAS_CPU_SB1
708 select SYS_SUPPORTS_BIG_ENDIAN
709 select SYS_SUPPORTS_LITTLE_ENDIAN
712 bool "Sibyte BCM91125C-CRhone"
713 depends on EXPERIMENTAL
716 select SIBYTE_BCM1125
718 select SYS_HAS_CPU_SB1
719 select SYS_SUPPORTS_BIG_ENDIAN
720 select SYS_SUPPORTS_HIGHMEM
721 select SYS_SUPPORTS_LITTLE_ENDIAN
724 bool "SNI RM200/300/400"
725 select ARC if CPU_LITTLE_ENDIAN
726 select ARC32 if CPU_LITTLE_ENDIAN
727 select ARCH_MAY_HAVE_PC_FDC
729 select DMA_NONCOHERENT
730 select GENERIC_ISA_DMA
731 select HAVE_STD_PC_SERIAL_PORT
737 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
738 select SYS_HAS_CPU_R4X00
739 select SYS_HAS_CPU_R5000
740 select R5000_CPU_SCACHE
741 select SYS_SUPPORTS_32BIT_KERNEL
742 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
743 select SYS_SUPPORTS_BIG_ENDIAN
744 select SYS_SUPPORTS_HIGHMEM
745 select SYS_SUPPORTS_LITTLE_ENDIAN
747 The SNI RM200/300/400 are MIPS-based machines manufactured by
748 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
749 Technology and now in turn merged with Fujitsu. Say Y here to
750 support this machine type.
752 config TOSHIBA_JMR3927
753 bool "Toshiba JMR-TX3927 board"
754 select DMA_NONCOHERENT
758 select SYS_HAS_CPU_TX39XX
759 select SYS_SUPPORTS_32BIT_KERNEL
760 select SYS_SUPPORTS_LITTLE_ENDIAN
761 select SYS_SUPPORTS_BIG_ENDIAN
762 select TOSHIBA_BOARDS
764 config TOSHIBA_RBTX4927
765 bool "Toshiba TBTX49[23]7 board"
766 select DMA_NONCOHERENT
767 select HAS_TXX9_SERIAL
772 select SYS_HAS_CPU_TX49XX
773 select SYS_SUPPORTS_32BIT_KERNEL
774 select SYS_SUPPORTS_64BIT_KERNEL
775 select SYS_SUPPORTS_LITTLE_ENDIAN
776 select SYS_SUPPORTS_BIG_ENDIAN
777 select TOSHIBA_BOARDS
778 select GENERIC_HARDIRQS_NO__DO_IRQ
780 This Toshiba board is based on the TX4927 processor. Say Y here to
781 support this machine type
783 config TOSHIBA_RBTX4938
784 bool "Toshiba RBTX4938 board"
785 select HAVE_STD_PC_SERIAL_PORT
786 select DMA_NONCOHERENT
787 select GENERIC_ISA_DMA
788 select HAS_TXX9_SERIAL
793 select SYS_HAS_CPU_TX49XX
794 select SYS_SUPPORTS_32BIT_KERNEL
795 select SYS_SUPPORTS_LITTLE_ENDIAN
796 select SYS_SUPPORTS_BIG_ENDIAN
797 select TOSHIBA_BOARDS
798 select GENERIC_HARDIRQS_NO__DO_IRQ
800 This Toshiba board is based on the TX4938 processor. Say Y here to
801 support this machine type
805 source "arch/mips/ddb5xxx/Kconfig"
806 source "arch/mips/gt64120/ev64120/Kconfig"
807 source "arch/mips/jazz/Kconfig"
808 source "arch/mips/lasat/Kconfig"
809 source "arch/mips/momentum/Kconfig"
810 source "arch/mips/pmc-sierra/Kconfig"
811 source "arch/mips/sgi-ip27/Kconfig"
812 source "arch/mips/sibyte/Kconfig"
813 source "arch/mips/tx4927/Kconfig"
814 source "arch/mips/tx4938/Kconfig"
815 source "arch/mips/vr41xx/Kconfig"
816 source "arch/mips/philips/pnx8550/common/Kconfig"
817 source "arch/mips/cobalt/Kconfig"
821 config RWSEM_GENERIC_SPINLOCK
825 config RWSEM_XCHGADD_ALGORITHM
828 config ARCH_HAS_ILOG2_U32
832 config ARCH_HAS_ILOG2_U64
836 config GENERIC_FIND_NEXT_BIT
840 config GENERIC_HWEIGHT
844 config GENERIC_CALIBRATE_DELAY
852 config SCHED_NO_NO_OMIT_FRAME_POINTER
856 config GENERIC_HARDIRQS_NO__DO_IRQ
861 # Select some configuration options automatically based on user selections.
866 config ARCH_MAY_HAVE_PC_FDC
877 select DMA_NEED_PCI_MAP_STATE
879 config DMA_NONCOHERENT
881 select DMA_NEED_PCI_MAP_STATE
883 config DMA_NEED_PCI_MAP_STATE
892 config GENERIC_ISA_DMA
901 select SYS_SUPPORTS_HIGHMEM
912 config MIPS_DISABLE_OBSOLETE_IDE
915 config GENERIC_ISA_DMA_SUPPORT_BROKEN
919 # Endianess selection. Sufficiently obscure so many users don't know what to
920 # answer,so we try hard to limit the available choices. Also the use of a
921 # choice statement should be more obvious to the user.
924 prompt "Endianess selection"
926 Some MIPS machines can be configured for either little or big endian
927 byte order. These modes require different kernels and a different
928 Linux distribution. In general there is one preferred byteorder for a
929 particular system but some systems are just as commonly used in the
930 one or the other endianess.
932 config CPU_BIG_ENDIAN
934 depends on SYS_SUPPORTS_BIG_ENDIAN
936 config CPU_LITTLE_ENDIAN
938 depends on SYS_SUPPORTS_LITTLE_ENDIAN
943 config SYS_SUPPORTS_APM_EMULATION
946 config SYS_SUPPORTS_BIG_ENDIAN
949 config SYS_SUPPORTS_LITTLE_ENDIAN
964 config DDB5XXX_COMMON
967 config MIPS_BOARDS_GEN
978 select HAS_TXX9_SERIAL
1011 select SYS_HAS_CPU_MIPS32_R1
1012 select SYS_SUPPORTS_32BIT_KERNEL
1013 select SYS_SUPPORTS_APM_EMULATION
1021 select DMA_NONCOHERENT
1023 select SYS_HAS_CPU_MIPS32_R1
1024 select SYS_SUPPORTS_32BIT_KERNEL
1025 select GENERIC_HARDIRQS_NO__DO_IRQ
1027 config SWAP_IO_SPACE
1035 config SERIAL_RM9000
1045 # Unfortunately not all GT64120 systems run the chip at the same clock.
1046 # As the user for the clock rate and try to minimize the available options.
1049 prompt "Galileo Chip Clock"
1050 #default SYSCLK_83 if MIPS_EV64120
1051 depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1052 default SYSCLK_83 if MIPS_EV64120
1053 default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
1056 bool "75" if MIPS_EV64120
1059 bool "83.3" if MIPS_EV64120
1062 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1072 config MIPS_L1_CACHE_SHIFT
1074 default "4" if MACH_DECSTATION
1075 default "7" if SGI_IP27
1078 config HAVE_STD_PC_SERIAL_PORT
1082 bool "ARC console support"
1083 depends on SGI_IP22 || SNI_RM
1087 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1092 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1101 config TOSHIBA_BOARDS
1104 menu "CPU selection"
1110 config CPU_MIPS32_R1
1111 bool "MIPS32 Release 1"
1112 depends on SYS_HAS_CPU_MIPS32_R1
1114 select CPU_HAS_PREFETCH
1115 select CPU_SUPPORTS_32BIT_KERNEL
1116 select CPU_SUPPORTS_HIGHMEM
1118 Choose this option to build a kernel for release 1 or later of the
1119 MIPS32 architecture. Most modern embedded systems with a 32-bit
1120 MIPS processor are based on a MIPS32 processor. If you know the
1121 specific type of processor in your system, choose those that one
1122 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1123 Release 2 of the MIPS32 architecture is available since several
1124 years so chances are you even have a MIPS32 Release 2 processor
1125 in which case you should choose CPU_MIPS32_R2 instead for better
1128 config CPU_MIPS32_R2
1129 bool "MIPS32 Release 2"
1130 depends on SYS_HAS_CPU_MIPS32_R2
1132 select CPU_HAS_PREFETCH
1133 select CPU_SUPPORTS_32BIT_KERNEL
1134 select CPU_SUPPORTS_HIGHMEM
1136 Choose this option to build a kernel for release 2 or later of the
1137 MIPS32 architecture. Most modern embedded systems with a 32-bit
1138 MIPS processor are based on a MIPS32 processor. If you know the
1139 specific type of processor in your system, choose those that one
1140 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1142 config CPU_MIPS64_R1
1143 bool "MIPS64 Release 1"
1144 depends on SYS_HAS_CPU_MIPS64_R1
1146 select CPU_HAS_PREFETCH
1147 select CPU_SUPPORTS_32BIT_KERNEL
1148 select CPU_SUPPORTS_64BIT_KERNEL
1149 select CPU_SUPPORTS_HIGHMEM
1151 Choose this option to build a kernel for release 1 or later of the
1152 MIPS64 architecture. Many modern embedded systems with a 64-bit
1153 MIPS processor are based on a MIPS64 processor. If you know the
1154 specific type of processor in your system, choose those that one
1155 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1156 Release 2 of the MIPS64 architecture is available since several
1157 years so chances are you even have a MIPS64 Release 2 processor
1158 in which case you should choose CPU_MIPS64_R2 instead for better
1161 config CPU_MIPS64_R2
1162 bool "MIPS64 Release 2"
1163 depends on SYS_HAS_CPU_MIPS64_R2
1165 select CPU_HAS_PREFETCH
1166 select CPU_SUPPORTS_32BIT_KERNEL
1167 select CPU_SUPPORTS_64BIT_KERNEL
1168 select CPU_SUPPORTS_HIGHMEM
1170 Choose this option to build a kernel for release 2 or later of the
1171 MIPS64 architecture. Many modern embedded systems with a 64-bit
1172 MIPS processor are based on a MIPS64 processor. If you know the
1173 specific type of processor in your system, choose those that one
1174 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1178 depends on SYS_HAS_CPU_R3000
1180 select CPU_SUPPORTS_32BIT_KERNEL
1181 select CPU_SUPPORTS_HIGHMEM
1183 Please make sure to pick the right CPU type. Linux/MIPS is not
1184 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1185 *not* work on R4000 machines and vice versa. However, since most
1186 of the supported machines have an R4000 (or similar) CPU, R4x00
1187 might be a safe bet. If the resulting kernel does not work,
1188 try to recompile with R3000.
1192 depends on SYS_HAS_CPU_TX39XX
1193 select CPU_SUPPORTS_32BIT_KERNEL
1197 depends on SYS_HAS_CPU_VR41XX
1198 select CPU_SUPPORTS_32BIT_KERNEL
1199 select CPU_SUPPORTS_64BIT_KERNEL
1201 The options selects support for the NEC VR4100 series of processors.
1202 Only choose this option if you have one of these processors as a
1203 kernel built with this option will not run on any other type of
1204 processor or vice versa.
1208 depends on SYS_HAS_CPU_R4300
1210 select CPU_SUPPORTS_32BIT_KERNEL
1211 select CPU_SUPPORTS_64BIT_KERNEL
1213 MIPS Technologies R4300-series processors.
1217 depends on SYS_HAS_CPU_R4X00
1219 select CPU_SUPPORTS_32BIT_KERNEL
1220 select CPU_SUPPORTS_64BIT_KERNEL
1222 MIPS Technologies R4000-series processors other than 4300, including
1223 the R4000, R4400, R4600, and 4700.
1227 depends on SYS_HAS_CPU_TX49XX
1229 select CPU_HAS_PREFETCH
1230 select CPU_SUPPORTS_32BIT_KERNEL
1231 select CPU_SUPPORTS_64BIT_KERNEL
1235 depends on SYS_HAS_CPU_R5000
1237 select CPU_SUPPORTS_32BIT_KERNEL
1238 select CPU_SUPPORTS_64BIT_KERNEL
1240 MIPS Technologies R5000-series processors other than the Nevada.
1244 depends on SYS_HAS_CPU_R5432
1246 select CPU_SUPPORTS_32BIT_KERNEL
1247 select CPU_SUPPORTS_64BIT_KERNEL
1251 depends on EXPERIMENTAL
1253 depends on SYS_HAS_CPU_R6000
1254 select CPU_SUPPORTS_32BIT_KERNEL
1256 MIPS Technologies R6000 and R6000A series processors. Note these
1257 processors are extremely rare and the support for them is incomplete.
1261 depends on SYS_HAS_CPU_NEVADA
1263 select CPU_SUPPORTS_32BIT_KERNEL
1264 select CPU_SUPPORTS_64BIT_KERNEL
1266 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1270 depends on EXPERIMENTAL
1271 depends on SYS_HAS_CPU_R8000
1273 select CPU_HAS_PREFETCH
1274 select CPU_SUPPORTS_64BIT_KERNEL
1276 MIPS Technologies R8000 processors. Note these processors are
1277 uncommon and the support for them is incomplete.
1281 depends on SYS_HAS_CPU_R10000
1283 select CPU_HAS_PREFETCH
1284 select CPU_SUPPORTS_32BIT_KERNEL
1285 select CPU_SUPPORTS_64BIT_KERNEL
1286 select CPU_SUPPORTS_HIGHMEM
1288 MIPS Technologies R10000-series processors.
1292 depends on SYS_HAS_CPU_RM7000
1294 select CPU_HAS_PREFETCH
1295 select CPU_SUPPORTS_32BIT_KERNEL
1296 select CPU_SUPPORTS_64BIT_KERNEL
1297 select CPU_SUPPORTS_HIGHMEM
1301 depends on SYS_HAS_CPU_RM9000
1303 select CPU_HAS_PREFETCH
1304 select CPU_SUPPORTS_32BIT_KERNEL
1305 select CPU_SUPPORTS_64BIT_KERNEL
1306 select CPU_SUPPORTS_HIGHMEM
1307 select WEAK_ORDERING
1311 depends on SYS_HAS_CPU_SB1
1313 select CPU_SUPPORTS_32BIT_KERNEL
1314 select CPU_SUPPORTS_64BIT_KERNEL
1315 select CPU_SUPPORTS_HIGHMEM
1316 select WEAK_ORDERING
1320 config SYS_HAS_CPU_MIPS32_R1
1323 config SYS_HAS_CPU_MIPS32_R2
1326 config SYS_HAS_CPU_MIPS64_R1
1329 config SYS_HAS_CPU_MIPS64_R2
1332 config SYS_HAS_CPU_R3000
1335 config SYS_HAS_CPU_TX39XX
1338 config SYS_HAS_CPU_VR41XX
1341 config SYS_HAS_CPU_R4300
1344 config SYS_HAS_CPU_R4X00
1347 config SYS_HAS_CPU_TX49XX
1350 config SYS_HAS_CPU_R5000
1353 config SYS_HAS_CPU_R5432
1356 config SYS_HAS_CPU_R6000
1359 config SYS_HAS_CPU_NEVADA
1362 config SYS_HAS_CPU_R8000
1365 config SYS_HAS_CPU_R10000
1368 config SYS_HAS_CPU_RM7000
1371 config SYS_HAS_CPU_RM9000
1374 config SYS_HAS_CPU_SB1
1377 config WEAK_ORDERING
1382 # These two indicate any level of the MIPS32 and MIPS64 architecture
1386 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1390 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1393 # These two indicate the revision of the architecture, either Release 1 or Release 2
1397 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1401 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1403 config SYS_SUPPORTS_32BIT_KERNEL
1405 config SYS_SUPPORTS_64BIT_KERNEL
1407 config CPU_SUPPORTS_32BIT_KERNEL
1409 config CPU_SUPPORTS_64BIT_KERNEL
1416 prompt "Kernel code model"
1418 You should only select this option if you have a workload that
1419 actually benefits from 64-bit processing or if your machine has
1420 large memory. You will only be presented a single option in this
1421 menu if your system does not support both 32-bit and 64-bit kernels.
1424 bool "32-bit kernel"
1425 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1428 Select this option if you want to build a 32-bit kernel.
1430 bool "64-bit kernel"
1431 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1433 Select this option if you want to build a 64-bit kernel.
1438 prompt "Kernel page size"
1439 default PAGE_SIZE_4KB
1441 config PAGE_SIZE_4KB
1444 This option select the standard 4kB Linux page size. On some
1445 R3000-family processors this is the only available page size. Using
1446 4kB page size will minimize memory consumption and is therefore
1447 recommended for low memory systems.
1449 config PAGE_SIZE_8KB
1451 depends on EXPERIMENTAL && CPU_R8000
1453 Using 8kB page size will result in higher performance kernel at
1454 the price of higher memory consumption. This option is available
1455 only on the R8000 processor. Not that at the time of this writing
1456 this option is still high experimental; there are also issues with
1457 compatibility of user applications.
1459 config PAGE_SIZE_16KB
1461 depends on !CPU_R3000 && !CPU_TX39XX
1463 Using 16kB page size will result in higher performance kernel at
1464 the price of higher memory consumption. This option is available on
1465 all non-R3000 family processors. Note that you will need a suitable
1466 Linux distribution to support this.
1468 config PAGE_SIZE_64KB
1470 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1472 Using 64kB page size will result in higher performance kernel at
1473 the price of higher memory consumption. This option is available on
1474 all non-R3000 family processor. Not that at the time of this
1475 writing this option is still high experimental.
1482 config IP22_CPU_SCACHE
1487 # Support for a MIPS32 / MIPS64 style S-caches
1489 config MIPS_CPU_SCACHE
1493 config R5000_CPU_SCACHE
1497 config RM7000_CPU_SCACHE
1501 config SIBYTE_DMA_PAGEOPS
1502 bool "Use DMA to clear/copy pages"
1505 Instead of using the CPU to zero and copy pages, use a Data Mover
1506 channel. These DMA channels are otherwise unused by the standard
1507 SiByte Linux port. Seems to give a small performance benefit.
1509 config CPU_HAS_PREFETCH
1513 prompt "MIPS MT options"
1515 config MIPS_MT_DISABLED
1516 bool "Disable multithreading support."
1518 Use this option if your workload can't take advantage of
1519 MIPS hardware multithreading support. On systems that don't have
1520 the option of an MT-enabled processor this option will be the only
1521 option in this menu.
1524 bool "Use 1 TC on each available VPE for SMP"
1525 depends on SYS_SUPPORTS_MULTITHREADING
1526 select CPU_MIPSR2_IRQ_VI
1527 select CPU_MIPSR2_SRS
1530 select SYS_SUPPORTS_SMP
1532 This is a kernel model which is also known a VSMP or lately
1533 has been marketesed into SMVP.
1536 bool "SMTC: Use all TCs on all VPEs for SMP"
1537 depends on CPU_MIPS32_R2
1538 #depends on CPU_MIPS64_R2 # once there is hardware ...
1539 depends on SYS_SUPPORTS_MULTITHREADING
1540 select CPU_MIPSR2_IRQ_VI
1541 select CPU_MIPSR2_SRS
1543 select NR_CPUS_DEFAULT_2
1544 select NR_CPUS_DEFAULT_8
1546 select SYS_SUPPORTS_SMP
1548 This is a kernel model which is known a SMTC or lately has been
1549 marketesed into SMVP.
1551 config MIPS_VPE_LOADER
1552 bool "VPE loader support."
1553 depends on SYS_SUPPORTS_MULTITHREADING
1556 Includes a loader for loading an elf relocatable object
1557 onto another VPE and running it.
1564 config SYS_SUPPORTS_MULTITHREADING
1567 config MIPS_MT_FPAFF
1568 bool "Dynamic FPU affinity for FP-intensive threads"
1572 config MIPS_MT_SMTC_INSTANT_REPLAY
1573 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1574 depends on MIPS_MT_SMTC
1577 SMTC pseudo-interrupts between TCs are deferred and queued
1578 if the target TC is interrupt-inhibited (IXMT). In the first
1579 SMTC prototypes, these queued IPIs were serviced on return
1580 to user mode, or on entry into the kernel idle loop. The
1581 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1582 processing, which adds runtime overhead (hence the option to turn
1583 it off), but ensures that IPIs are handled promptly even under
1584 heavy I/O interrupt load.
1586 config MIPS_VPE_LOADER_TOM
1587 bool "Load VPE program into memory hidden from linux"
1588 depends on MIPS_VPE_LOADER
1591 The loader can use memory that is present but has been hidden from
1592 Linux using the kernel command line option "mem=xxMB". It's up to
1593 you to ensure the amount you put in the option and the space your
1594 program requires is less or equal to the amount physically present.
1596 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1597 config MIPS_VPE_APSP_API
1598 bool "Enable support for AP/SP API (RTLX)"
1599 depends on MIPS_VPE_LOADER
1602 config MIPS_APSP_KSPD
1604 depends on MIPS_VPE_APSP_API
1607 KSPD is a kernel daemon that accepts syscall requests from the SP
1608 side, actions them and returns the results. It also handles the
1609 "exit" syscall notifying other kernel modules the SP program is
1610 exiting. You probably want to say yes here.
1612 config SB1_PASS_1_WORKAROUNDS
1614 depends on CPU_SB1_PASS_1
1617 config SB1_PASS_2_WORKAROUNDS
1619 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1622 config SB1_PASS_2_1_WORKAROUNDS
1624 depends on CPU_SB1 && CPU_SB1_PASS_2
1627 config 64BIT_PHYS_ADDR
1628 bool "Support for 64-bit physical address space"
1629 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1638 # Vectored interrupt mode is an R2 feature
1640 config CPU_MIPSR2_IRQ_VI
1644 # Extended interrupt mode is an R2 feature
1646 config CPU_MIPSR2_IRQ_EI
1650 # Shadow registers are an R2 feature
1652 config CPU_MIPSR2_SRS
1657 depends on !CPU_R3000
1661 # Use the generic interrupt handling code in kernel/irq/:
1663 config GENERIC_HARDIRQS
1667 config GENERIC_IRQ_PROBE
1675 # - Highmem only makes sense for the 32-bit kernel.
1676 # - The current highmem code will only work properly on physically indexed
1677 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1678 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1679 # moment we protect the user and offer the highmem option only on machines
1680 # where it's known to be safe. This will not offer highmem on a few systems
1681 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1682 # indexed CPUs but we're playing safe.
1683 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1684 # know they might have memory configurations that could make use of highmem
1688 bool "High Memory Support"
1689 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1691 config CPU_SUPPORTS_HIGHMEM
1694 config SYS_SUPPORTS_HIGHMEM
1697 config ARCH_FLATMEM_ENABLE
1701 config ARCH_DISCONTIGMEM_ENABLE
1703 default y if SGI_IP27
1705 Say Y to upport efficient handling of discontiguous physical memory,
1706 for architectures which are either NUMA (Non-Uniform Memory Access)
1707 or have huge holes in the physical address space for other reasons.
1708 See <file:Documentation/vm/numa> for more.
1710 config ARCH_SPARSEMEM_ENABLE
1712 select SPARSEMEM_STATIC
1716 depends on SYS_SUPPORTS_NUMA
1718 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1719 Access). This option improves performance on systems with more
1720 than two nodes; on two node systems it is generally better to
1721 leave it disabled; on single node systems disable this option
1724 config SYS_SUPPORTS_NUMA
1730 depends on NEED_MULTIPLE_NODES
1735 bool "Multi-Processing support"
1736 depends on SYS_SUPPORTS_SMP
1739 This enables support for systems with more than one CPU. If you have
1740 a system with only one CPU, like most personal computers, say N. If
1741 you have a system with more than one CPU, say Y.
1743 If you say N here, the kernel will run on single and multiprocessor
1744 machines, but will use only one CPU of a multiprocessor machine. If
1745 you say Y here, the kernel will run on many, but not all,
1746 singleprocessor machines. On a singleprocessor machine, the kernel
1747 will run faster if you say N here.
1749 People using multiprocessor machines who say Y here should also say
1750 Y to "Enhanced Real Time Clock Support", below.
1752 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1753 available at <http://www.tldp.org/docs.html#howto>.
1755 If you don't know what to do here, say N.
1757 config SYS_SUPPORTS_SMP
1760 config NR_CPUS_DEFAULT_2
1763 config NR_CPUS_DEFAULT_4
1766 config NR_CPUS_DEFAULT_8
1769 config NR_CPUS_DEFAULT_16
1772 config NR_CPUS_DEFAULT_32
1775 config NR_CPUS_DEFAULT_64
1779 int "Maximum number of CPUs (2-64)"
1782 default "2" if NR_CPUS_DEFAULT_2
1783 default "4" if NR_CPUS_DEFAULT_4
1784 default "8" if NR_CPUS_DEFAULT_8
1785 default "16" if NR_CPUS_DEFAULT_16
1786 default "32" if NR_CPUS_DEFAULT_32
1787 default "64" if NR_CPUS_DEFAULT_64
1789 This allows you to specify the maximum number of CPUs which this
1790 kernel will support. The maximum supported value is 32 for 32-bit
1791 kernel and 64 for 64-bit kernels; the minimum value which makes
1794 This is purely to save memory - each supported CPU adds
1795 approximately eight kilobytes to the kernel image.
1798 # Timer Interrupt Frequency Configuration
1802 prompt "Timer frequency"
1805 Allows the configuration of the timer frequency.
1808 bool "48 HZ" if SYS_SUPPORTS_48HZ
1811 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1814 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1817 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1820 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1823 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1826 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1830 config SYS_SUPPORTS_48HZ
1833 config SYS_SUPPORTS_100HZ
1836 config SYS_SUPPORTS_128HZ
1839 config SYS_SUPPORTS_250HZ
1842 config SYS_SUPPORTS_256HZ
1845 config SYS_SUPPORTS_1000HZ
1848 config SYS_SUPPORTS_1024HZ
1851 config SYS_SUPPORTS_ARBIT_HZ
1853 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1854 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1855 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1856 !SYS_SUPPORTS_1024HZ
1861 default 100 if HZ_100
1862 default 128 if HZ_128
1863 default 250 if HZ_250
1864 default 256 if HZ_256
1865 default 1000 if HZ_1000
1866 default 1024 if HZ_1024
1868 source "kernel/Kconfig.preempt"
1871 bool "DS1742 BRAM/RTC support"
1872 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1874 config MIPS_INSANE_LARGE
1875 bool "Support for large 64-bit configurations"
1876 depends on CPU_R10000 && 64BIT
1878 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1879 previous 64-bit processors which only supported 40 bit / 1TB. If you
1880 need processes of more than 1TB virtual address space, say Y here.
1881 This will result in additional memory usage, so it is not
1882 recommended for normal users.
1885 bool "Kexec system call (EXPERIMENTAL)"
1886 depends on EXPERIMENTAL
1888 kexec is a system call that implements the ability to shutdown your
1889 current kernel, and to start another kernel. It is like a reboot
1890 but it is indepedent of the system firmware. And like a reboot
1891 you can start any kernel with it, not just Linux.
1893 The name comes from the similiarity to the exec system call.
1895 It is an ongoing process to be certain the hardware in a machine
1896 is properly shutdown, so do not be surprised if this code does not
1897 initially work for you. It may help to enable device hotplugging
1898 support. As of this writing the exact hardware interface is
1899 strongly in flux, so no good recommendation can be made.
1902 bool "Enable seccomp to safely compute untrusted bytecode"
1903 depends on PROC_FS && BROKEN
1906 This kernel feature is useful for number crunching applications
1907 that may need to compute untrusted bytecode during their
1908 execution. By using pipes or other transports made available to
1909 the process as file descriptors supporting the read/write
1910 syscalls, it's possible to isolate those applications in
1911 their own address space using seccomp. Once seccomp is
1912 enabled via /proc/<pid>/seccomp, it cannot be disabled
1913 and the task is only allowed to execute a few safe syscalls
1914 defined by each seccomp mode.
1916 If unsure, say Y. Only embedded should say N here.
1920 config RWSEM_GENERIC_SPINLOCK
1924 config LOCKDEP_SUPPORT
1928 config STACKTRACE_SUPPORT
1932 source "init/Kconfig"
1934 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1942 bool "Support for PCI controller"
1943 depends on HW_HAS_PCI
1945 Find out whether you have a PCI motherboard. PCI is the name of a
1946 bus system, i.e. the way the CPU talks to the other stuff inside
1947 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1950 The PCI-HOWTO, available from
1951 <http://www.tldp.org/docs.html#howto>, contains valuable
1952 information about which PCI hardware does work under Linux and which
1959 source "drivers/pci/Kconfig"
1962 # ISA support is now enabled via select. Too many systems still have the one
1963 # or other ISA chip on the board that users don't know about so don't expect
1964 # users to choose the right thing ...
1971 depends on HW_HAS_EISA
1973 select GENERIC_ISA_DMA
1975 The Extended Industry Standard Architecture (EISA) bus was
1976 developed as an open alternative to the IBM MicroChannel bus.
1978 The EISA bus provided some of the features of the IBM MicroChannel
1979 bus while maintaining backward compatibility with cards made for
1980 the older ISA bus. The EISA bus saw limited use between 1988 and
1981 1995 when it was made obsolete by the PCI bus.
1983 Say Y here if you are building a kernel for an EISA-based machine.
1987 source "drivers/eisa/Kconfig"
1990 bool "TURBOchannel support"
1991 depends on MACH_DECSTATION
1993 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1994 processors. Documentation on writing device drivers for TurboChannel
1996 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1999 # bool "Access.Bus support"
2009 source "drivers/pcmcia/Kconfig"
2011 source "drivers/pci/hotplug/Kconfig"
2015 menu "Executable file formats"
2017 source "fs/Kconfig.binfmt"
2023 bool "Use 64-bit ELF format for building"
2026 A 64-bit kernel is usually built using the 64-bit ELF binary object
2027 format as it's one that allows arbitrary 64-bit constructs. For
2028 kernels that are loaded within the KSEG compatibility segments the
2029 32-bit ELF format can optionally be used resulting in a somewhat
2030 smaller binary, but this option is not explicitly supported by the
2031 toolchain and since binutils 2.14 it does not even work at all.
2033 Say Y to use the 64-bit format or N to use the 32-bit one.
2038 bool "Include IRIX binary compatibility"
2039 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
2041 config MIPS32_COMPAT
2042 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2045 Select this option if you want Linux/MIPS 32-bit binary
2046 compatibility. Since all software available for Linux/MIPS is
2047 currently 32-bit you should say Y here.
2051 depends on MIPS32_COMPAT
2054 config SYSVIPC_COMPAT
2056 depends on COMPAT && SYSVIPC
2060 bool "Kernel support for o32 binaries"
2061 depends on MIPS32_COMPAT
2063 Select this option if you want to run o32 binaries. These are pure
2064 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2065 existing binaries are in this format.
2070 bool "Kernel support for n32 binaries"
2071 depends on MIPS32_COMPAT
2073 Select this option if you want to run n32 binaries. These are
2074 64-bit binaries using 32-bit quantities for addressing and certain
2075 data that would normally be 64-bit. They are used in special
2082 default y if MIPS32_O32 || MIPS32_N32
2086 menu "Power management options"
2088 source "kernel/power/Kconfig"
2092 source "net/Kconfig"
2094 source "drivers/Kconfig"
2098 source "arch/mips/oprofile/Kconfig"
2100 source "arch/mips/Kconfig.debug"
2102 source "security/Kconfig"
2104 source "crypto/Kconfig"
2106 source "lib/Kconfig"