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
601 select DMA_NONCOHERENT
603 select R5000_CPU_SCACHE
604 select RM7000_CPU_SCACHE
605 select SYS_HAS_CPU_R5000
606 select SYS_HAS_CPU_R10000 if BROKEN
607 select SYS_HAS_CPU_RM7000
608 select SYS_HAS_CPU_NEVADA
609 select SYS_SUPPORTS_64BIT_KERNEL
610 select SYS_SUPPORTS_BIG_ENDIAN
612 If you want this kernel to run on SGI O2 workstation, say Y here.
615 bool "Sibyte BCM91480B-BigSur"
618 select NR_CPUS_DEFAULT_4
620 select SIBYTE_BCM1x80
622 select SYS_HAS_CPU_SB1
623 select SYS_SUPPORTS_BIG_ENDIAN
624 select SYS_SUPPORTS_LITTLE_ENDIAN
627 bool "Sibyte BCM91250A-SWARM"
630 select NR_CPUS_DEFAULT_2
633 select SYS_HAS_CPU_SB1
634 select SYS_SUPPORTS_BIG_ENDIAN
635 select SYS_SUPPORTS_HIGHMEM
636 select SYS_SUPPORTS_LITTLE_ENDIAN
638 config SIBYTE_SENTOSA
639 bool "Sibyte BCM91250E-Sentosa"
640 depends on EXPERIMENTAL
643 select NR_CPUS_DEFAULT_2
646 select SYS_HAS_CPU_SB1
647 select SYS_SUPPORTS_BIG_ENDIAN
648 select SYS_SUPPORTS_LITTLE_ENDIAN
651 bool "Sibyte BCM91125E-Rhone"
652 depends on EXPERIMENTAL
655 select SIBYTE_BCM1125H
657 select SYS_HAS_CPU_SB1
658 select SYS_SUPPORTS_BIG_ENDIAN
659 select SYS_SUPPORTS_LITTLE_ENDIAN
662 bool "Sibyte BCM91120x-Carmel"
663 depends on EXPERIMENTAL
666 select SIBYTE_BCM1120
668 select SYS_HAS_CPU_SB1
669 select SYS_SUPPORTS_BIG_ENDIAN
670 select SYS_SUPPORTS_LITTLE_ENDIAN
672 config SIBYTE_PTSWARM
673 bool "Sibyte BCM91250PT-PTSWARM"
674 depends on EXPERIMENTAL
677 select NR_CPUS_DEFAULT_2
680 select SYS_HAS_CPU_SB1
681 select SYS_SUPPORTS_BIG_ENDIAN
682 select SYS_SUPPORTS_HIGHMEM
683 select SYS_SUPPORTS_LITTLE_ENDIAN
685 config SIBYTE_LITTLESUR
686 bool "Sibyte BCM91250C2-LittleSur"
687 depends on EXPERIMENTAL
690 select NR_CPUS_DEFAULT_2
693 select SYS_HAS_CPU_SB1
694 select SYS_SUPPORTS_BIG_ENDIAN
695 select SYS_SUPPORTS_HIGHMEM
696 select SYS_SUPPORTS_LITTLE_ENDIAN
699 bool "Sibyte BCM91120C-CRhine"
700 depends on EXPERIMENTAL
703 select SIBYTE_BCM1120
705 select SYS_HAS_CPU_SB1
706 select SYS_SUPPORTS_BIG_ENDIAN
707 select SYS_SUPPORTS_LITTLE_ENDIAN
710 bool "Sibyte BCM91125C-CRhone"
711 depends on EXPERIMENTAL
714 select SIBYTE_BCM1125
716 select SYS_HAS_CPU_SB1
717 select SYS_SUPPORTS_BIG_ENDIAN
718 select SYS_SUPPORTS_HIGHMEM
719 select SYS_SUPPORTS_LITTLE_ENDIAN
722 bool "SNI RM200/300/400"
723 select ARC if CPU_LITTLE_ENDIAN
724 select ARC32 if CPU_LITTLE_ENDIAN
725 select ARCH_MAY_HAVE_PC_FDC
727 select DMA_NONCOHERENT
728 select GENERIC_ISA_DMA
729 select HAVE_STD_PC_SERIAL_PORT
735 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
736 select SYS_HAS_CPU_R4X00
737 select SYS_HAS_CPU_R5000
738 select R5000_CPU_SCACHE
739 select SYS_SUPPORTS_32BIT_KERNEL
740 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
741 select SYS_SUPPORTS_BIG_ENDIAN
742 select SYS_SUPPORTS_HIGHMEM
743 select SYS_SUPPORTS_LITTLE_ENDIAN
745 The SNI RM200/300/400 are MIPS-based machines manufactured by
746 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
747 Technology and now in turn merged with Fujitsu. Say Y here to
748 support this machine type.
750 config TOSHIBA_JMR3927
751 bool "Toshiba JMR-TX3927 board"
752 select DMA_NONCOHERENT
756 select SYS_HAS_CPU_TX39XX
757 select SYS_SUPPORTS_32BIT_KERNEL
758 select SYS_SUPPORTS_LITTLE_ENDIAN
759 select SYS_SUPPORTS_BIG_ENDIAN
760 select TOSHIBA_BOARDS
762 config TOSHIBA_RBTX4927
763 bool "Toshiba TBTX49[23]7 board"
764 select DMA_NONCOHERENT
765 select HAS_TXX9_SERIAL
770 select SYS_HAS_CPU_TX49XX
771 select SYS_SUPPORTS_32BIT_KERNEL
772 select SYS_SUPPORTS_64BIT_KERNEL
773 select SYS_SUPPORTS_LITTLE_ENDIAN
774 select SYS_SUPPORTS_BIG_ENDIAN
775 select TOSHIBA_BOARDS
776 select GENERIC_HARDIRQS_NO__DO_IRQ
778 This Toshiba board is based on the TX4927 processor. Say Y here to
779 support this machine type
781 config TOSHIBA_RBTX4938
782 bool "Toshiba RBTX4938 board"
783 select HAVE_STD_PC_SERIAL_PORT
784 select DMA_NONCOHERENT
785 select GENERIC_ISA_DMA
786 select HAS_TXX9_SERIAL
791 select SYS_HAS_CPU_TX49XX
792 select SYS_SUPPORTS_32BIT_KERNEL
793 select SYS_SUPPORTS_LITTLE_ENDIAN
794 select SYS_SUPPORTS_BIG_ENDIAN
795 select TOSHIBA_BOARDS
796 select GENERIC_HARDIRQS_NO__DO_IRQ
798 This Toshiba board is based on the TX4938 processor. Say Y here to
799 support this machine type
803 source "arch/mips/ddb5xxx/Kconfig"
804 source "arch/mips/gt64120/ev64120/Kconfig"
805 source "arch/mips/jazz/Kconfig"
806 source "arch/mips/lasat/Kconfig"
807 source "arch/mips/momentum/Kconfig"
808 source "arch/mips/pmc-sierra/Kconfig"
809 source "arch/mips/sgi-ip27/Kconfig"
810 source "arch/mips/sibyte/Kconfig"
811 source "arch/mips/tx4927/Kconfig"
812 source "arch/mips/tx4938/Kconfig"
813 source "arch/mips/vr41xx/Kconfig"
814 source "arch/mips/philips/pnx8550/common/Kconfig"
815 source "arch/mips/cobalt/Kconfig"
819 config RWSEM_GENERIC_SPINLOCK
823 config RWSEM_XCHGADD_ALGORITHM
826 config ARCH_HAS_ILOG2_U32
830 config ARCH_HAS_ILOG2_U64
834 config GENERIC_FIND_NEXT_BIT
838 config GENERIC_HWEIGHT
842 config GENERIC_CALIBRATE_DELAY
850 config SCHED_NO_NO_OMIT_FRAME_POINTER
854 config GENERIC_HARDIRQS_NO__DO_IRQ
859 # Select some configuration options automatically based on user selections.
864 config ARCH_MAY_HAVE_PC_FDC
875 select DMA_NEED_PCI_MAP_STATE
877 config DMA_NONCOHERENT
879 select DMA_NEED_PCI_MAP_STATE
881 config DMA_NEED_PCI_MAP_STATE
887 config GENERIC_ISA_DMA
896 select SYS_SUPPORTS_HIGHMEM
907 config MIPS_DISABLE_OBSOLETE_IDE
910 config GENERIC_ISA_DMA_SUPPORT_BROKEN
914 # Endianess selection. Sufficiently obscure so many users don't know what to
915 # answer,so we try hard to limit the available choices. Also the use of a
916 # choice statement should be more obvious to the user.
919 prompt "Endianess selection"
921 Some MIPS machines can be configured for either little or big endian
922 byte order. These modes require different kernels and a different
923 Linux distribution. In general there is one preferred byteorder for a
924 particular system but some systems are just as commonly used in the
925 one or the other endianess.
927 config CPU_BIG_ENDIAN
929 depends on SYS_SUPPORTS_BIG_ENDIAN
931 config CPU_LITTLE_ENDIAN
933 depends on SYS_SUPPORTS_LITTLE_ENDIAN
938 config SYS_SUPPORTS_APM_EMULATION
941 config SYS_SUPPORTS_BIG_ENDIAN
944 config SYS_SUPPORTS_LITTLE_ENDIAN
959 config DDB5XXX_COMMON
962 config MIPS_BOARDS_GEN
973 select HAS_TXX9_SERIAL
1006 select SYS_HAS_CPU_MIPS32_R1
1007 select SYS_SUPPORTS_32BIT_KERNEL
1008 select SYS_SUPPORTS_APM_EMULATION
1016 select DMA_NONCOHERENT
1018 select SYS_HAS_CPU_MIPS32_R1
1019 select SYS_SUPPORTS_32BIT_KERNEL
1020 select GENERIC_HARDIRQS_NO__DO_IRQ
1022 config SWAP_IO_SPACE
1030 config SERIAL_RM9000
1040 # Unfortunately not all GT64120 systems run the chip at the same clock.
1041 # As the user for the clock rate and try to minimize the available options.
1044 prompt "Galileo Chip Clock"
1045 #default SYSCLK_83 if MIPS_EV64120
1046 depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1047 default SYSCLK_83 if MIPS_EV64120
1048 default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
1051 bool "75" if MIPS_EV64120
1054 bool "83.3" if MIPS_EV64120
1057 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1067 config MIPS_L1_CACHE_SHIFT
1069 default "4" if MACH_DECSTATION
1070 default "7" if SGI_IP27
1073 config HAVE_STD_PC_SERIAL_PORT
1077 bool "ARC console support"
1078 depends on SGI_IP22 || SNI_RM
1082 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1087 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1096 config TOSHIBA_BOARDS
1099 menu "CPU selection"
1105 config CPU_MIPS32_R1
1106 bool "MIPS32 Release 1"
1107 depends on SYS_HAS_CPU_MIPS32_R1
1109 select CPU_HAS_PREFETCH
1110 select CPU_SUPPORTS_32BIT_KERNEL
1111 select CPU_SUPPORTS_HIGHMEM
1113 Choose this option to build a kernel for release 1 or later of the
1114 MIPS32 architecture. Most modern embedded systems with a 32-bit
1115 MIPS processor are based on a MIPS32 processor. If you know the
1116 specific type of processor in your system, choose those that one
1117 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1118 Release 2 of the MIPS32 architecture is available since several
1119 years so chances are you even have a MIPS32 Release 2 processor
1120 in which case you should choose CPU_MIPS32_R2 instead for better
1123 config CPU_MIPS32_R2
1124 bool "MIPS32 Release 2"
1125 depends on SYS_HAS_CPU_MIPS32_R2
1127 select CPU_HAS_PREFETCH
1128 select CPU_SUPPORTS_32BIT_KERNEL
1129 select CPU_SUPPORTS_HIGHMEM
1131 Choose this option to build a kernel for release 2 or later of the
1132 MIPS32 architecture. Most modern embedded systems with a 32-bit
1133 MIPS processor are based on a MIPS32 processor. If you know the
1134 specific type of processor in your system, choose those that one
1135 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1137 config CPU_MIPS64_R1
1138 bool "MIPS64 Release 1"
1139 depends on SYS_HAS_CPU_MIPS64_R1
1141 select CPU_HAS_PREFETCH
1142 select CPU_SUPPORTS_32BIT_KERNEL
1143 select CPU_SUPPORTS_64BIT_KERNEL
1144 select CPU_SUPPORTS_HIGHMEM
1146 Choose this option to build a kernel for release 1 or later of the
1147 MIPS64 architecture. Many modern embedded systems with a 64-bit
1148 MIPS processor are based on a MIPS64 processor. If you know the
1149 specific type of processor in your system, choose those that one
1150 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1151 Release 2 of the MIPS64 architecture is available since several
1152 years so chances are you even have a MIPS64 Release 2 processor
1153 in which case you should choose CPU_MIPS64_R2 instead for better
1156 config CPU_MIPS64_R2
1157 bool "MIPS64 Release 2"
1158 depends on SYS_HAS_CPU_MIPS64_R2
1160 select CPU_HAS_PREFETCH
1161 select CPU_SUPPORTS_32BIT_KERNEL
1162 select CPU_SUPPORTS_64BIT_KERNEL
1163 select CPU_SUPPORTS_HIGHMEM
1165 Choose this option to build a kernel for release 2 or later of the
1166 MIPS64 architecture. Many modern embedded systems with a 64-bit
1167 MIPS processor are based on a MIPS64 processor. If you know the
1168 specific type of processor in your system, choose those that one
1169 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1173 depends on SYS_HAS_CPU_R3000
1175 select CPU_SUPPORTS_32BIT_KERNEL
1176 select CPU_SUPPORTS_HIGHMEM
1178 Please make sure to pick the right CPU type. Linux/MIPS is not
1179 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1180 *not* work on R4000 machines and vice versa. However, since most
1181 of the supported machines have an R4000 (or similar) CPU, R4x00
1182 might be a safe bet. If the resulting kernel does not work,
1183 try to recompile with R3000.
1187 depends on SYS_HAS_CPU_TX39XX
1188 select CPU_SUPPORTS_32BIT_KERNEL
1192 depends on SYS_HAS_CPU_VR41XX
1193 select CPU_SUPPORTS_32BIT_KERNEL
1194 select CPU_SUPPORTS_64BIT_KERNEL
1196 The options selects support for the NEC VR4100 series of processors.
1197 Only choose this option if you have one of these processors as a
1198 kernel built with this option will not run on any other type of
1199 processor or vice versa.
1203 depends on SYS_HAS_CPU_R4300
1205 select CPU_SUPPORTS_32BIT_KERNEL
1206 select CPU_SUPPORTS_64BIT_KERNEL
1208 MIPS Technologies R4300-series processors.
1212 depends on SYS_HAS_CPU_R4X00
1214 select CPU_SUPPORTS_32BIT_KERNEL
1215 select CPU_SUPPORTS_64BIT_KERNEL
1217 MIPS Technologies R4000-series processors other than 4300, including
1218 the R4000, R4400, R4600, and 4700.
1222 depends on SYS_HAS_CPU_TX49XX
1224 select CPU_HAS_PREFETCH
1225 select CPU_SUPPORTS_32BIT_KERNEL
1226 select CPU_SUPPORTS_64BIT_KERNEL
1230 depends on SYS_HAS_CPU_R5000
1232 select CPU_SUPPORTS_32BIT_KERNEL
1233 select CPU_SUPPORTS_64BIT_KERNEL
1235 MIPS Technologies R5000-series processors other than the Nevada.
1239 depends on SYS_HAS_CPU_R5432
1241 select CPU_SUPPORTS_32BIT_KERNEL
1242 select CPU_SUPPORTS_64BIT_KERNEL
1246 depends on EXPERIMENTAL
1248 depends on SYS_HAS_CPU_R6000
1249 select CPU_SUPPORTS_32BIT_KERNEL
1251 MIPS Technologies R6000 and R6000A series processors. Note these
1252 processors are extremely rare and the support for them is incomplete.
1256 depends on SYS_HAS_CPU_NEVADA
1258 select CPU_SUPPORTS_32BIT_KERNEL
1259 select CPU_SUPPORTS_64BIT_KERNEL
1261 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1265 depends on EXPERIMENTAL
1266 depends on SYS_HAS_CPU_R8000
1268 select CPU_HAS_PREFETCH
1269 select CPU_SUPPORTS_64BIT_KERNEL
1271 MIPS Technologies R8000 processors. Note these processors are
1272 uncommon and the support for them is incomplete.
1276 depends on SYS_HAS_CPU_R10000
1278 select CPU_HAS_PREFETCH
1279 select CPU_SUPPORTS_32BIT_KERNEL
1280 select CPU_SUPPORTS_64BIT_KERNEL
1281 select CPU_SUPPORTS_HIGHMEM
1283 MIPS Technologies R10000-series processors.
1287 depends on SYS_HAS_CPU_RM7000
1289 select CPU_HAS_PREFETCH
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_64BIT_KERNEL
1292 select CPU_SUPPORTS_HIGHMEM
1296 depends on SYS_HAS_CPU_RM9000
1298 select CPU_HAS_PREFETCH
1299 select CPU_SUPPORTS_32BIT_KERNEL
1300 select CPU_SUPPORTS_64BIT_KERNEL
1301 select CPU_SUPPORTS_HIGHMEM
1302 select WEAK_ORDERING
1306 depends on SYS_HAS_CPU_SB1
1308 select CPU_SUPPORTS_32BIT_KERNEL
1309 select CPU_SUPPORTS_64BIT_KERNEL
1310 select CPU_SUPPORTS_HIGHMEM
1311 select WEAK_ORDERING
1315 config SYS_HAS_CPU_MIPS32_R1
1318 config SYS_HAS_CPU_MIPS32_R2
1321 config SYS_HAS_CPU_MIPS64_R1
1324 config SYS_HAS_CPU_MIPS64_R2
1327 config SYS_HAS_CPU_R3000
1330 config SYS_HAS_CPU_TX39XX
1333 config SYS_HAS_CPU_VR41XX
1336 config SYS_HAS_CPU_R4300
1339 config SYS_HAS_CPU_R4X00
1342 config SYS_HAS_CPU_TX49XX
1345 config SYS_HAS_CPU_R5000
1348 config SYS_HAS_CPU_R5432
1351 config SYS_HAS_CPU_R6000
1354 config SYS_HAS_CPU_NEVADA
1357 config SYS_HAS_CPU_R8000
1360 config SYS_HAS_CPU_R10000
1363 config SYS_HAS_CPU_RM7000
1366 config SYS_HAS_CPU_RM9000
1369 config SYS_HAS_CPU_SB1
1372 config WEAK_ORDERING
1377 # These two indicate any level of the MIPS32 and MIPS64 architecture
1381 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1385 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1388 # These two indicate the revision of the architecture, either Release 1 or Release 2
1392 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1396 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1398 config SYS_SUPPORTS_32BIT_KERNEL
1400 config SYS_SUPPORTS_64BIT_KERNEL
1402 config CPU_SUPPORTS_32BIT_KERNEL
1404 config CPU_SUPPORTS_64BIT_KERNEL
1411 prompt "Kernel code model"
1413 You should only select this option if you have a workload that
1414 actually benefits from 64-bit processing or if your machine has
1415 large memory. You will only be presented a single option in this
1416 menu if your system does not support both 32-bit and 64-bit kernels.
1419 bool "32-bit kernel"
1420 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1423 Select this option if you want to build a 32-bit kernel.
1425 bool "64-bit kernel"
1426 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1428 Select this option if you want to build a 64-bit kernel.
1433 prompt "Kernel page size"
1434 default PAGE_SIZE_4KB
1436 config PAGE_SIZE_4KB
1439 This option select the standard 4kB Linux page size. On some
1440 R3000-family processors this is the only available page size. Using
1441 4kB page size will minimize memory consumption and is therefore
1442 recommended for low memory systems.
1444 config PAGE_SIZE_8KB
1446 depends on EXPERIMENTAL && CPU_R8000
1448 Using 8kB page size will result in higher performance kernel at
1449 the price of higher memory consumption. This option is available
1450 only on the R8000 processor. Not that at the time of this writing
1451 this option is still high experimental; there are also issues with
1452 compatibility of user applications.
1454 config PAGE_SIZE_16KB
1456 depends on !CPU_R3000 && !CPU_TX39XX
1458 Using 16kB page size will result in higher performance kernel at
1459 the price of higher memory consumption. This option is available on
1460 all non-R3000 family processors. Note that you will need a suitable
1461 Linux distribution to support this.
1463 config PAGE_SIZE_64KB
1465 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1467 Using 64kB page size will result in higher performance kernel at
1468 the price of higher memory consumption. This option is available on
1469 all non-R3000 family processor. Not that at the time of this
1470 writing this option is still high experimental.
1477 config IP22_CPU_SCACHE
1482 # Support for a MIPS32 / MIPS64 style S-caches
1484 config MIPS_CPU_SCACHE
1488 config R5000_CPU_SCACHE
1492 config RM7000_CPU_SCACHE
1496 config SIBYTE_DMA_PAGEOPS
1497 bool "Use DMA to clear/copy pages"
1500 Instead of using the CPU to zero and copy pages, use a Data Mover
1501 channel. These DMA channels are otherwise unused by the standard
1502 SiByte Linux port. Seems to give a small performance benefit.
1504 config CPU_HAS_PREFETCH
1508 prompt "MIPS MT options"
1510 config MIPS_MT_DISABLED
1511 bool "Disable multithreading support."
1513 Use this option if your workload can't take advantage of
1514 MIPS hardware multithreading support. On systems that don't have
1515 the option of an MT-enabled processor this option will be the only
1516 option in this menu.
1519 bool "Use 1 TC on each available VPE for SMP"
1520 depends on SYS_SUPPORTS_MULTITHREADING
1521 select CPU_MIPSR2_IRQ_VI
1522 select CPU_MIPSR2_SRS
1525 select SYS_SUPPORTS_SMP
1527 This is a kernel model which is also known a VSMP or lately
1528 has been marketesed into SMVP.
1531 bool "SMTC: Use all TCs on all VPEs for SMP"
1532 depends on CPU_MIPS32_R2
1533 #depends on CPU_MIPS64_R2 # once there is hardware ...
1534 depends on SYS_SUPPORTS_MULTITHREADING
1535 select CPU_MIPSR2_IRQ_VI
1536 select CPU_MIPSR2_SRS
1538 select NR_CPUS_DEFAULT_2
1539 select NR_CPUS_DEFAULT_8
1541 select SYS_SUPPORTS_SMP
1543 This is a kernel model which is known a SMTC or lately has been
1544 marketesed into SMVP.
1546 config MIPS_VPE_LOADER
1547 bool "VPE loader support."
1548 depends on SYS_SUPPORTS_MULTITHREADING
1551 Includes a loader for loading an elf relocatable object
1552 onto another VPE and running it.
1559 config SYS_SUPPORTS_MULTITHREADING
1562 config MIPS_MT_FPAFF
1563 bool "Dynamic FPU affinity for FP-intensive threads"
1567 config MIPS_MT_SMTC_INSTANT_REPLAY
1568 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1569 depends on MIPS_MT_SMTC
1572 SMTC pseudo-interrupts between TCs are deferred and queued
1573 if the target TC is interrupt-inhibited (IXMT). In the first
1574 SMTC prototypes, these queued IPIs were serviced on return
1575 to user mode, or on entry into the kernel idle loop. The
1576 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1577 processing, which adds runtime overhead (hence the option to turn
1578 it off), but ensures that IPIs are handled promptly even under
1579 heavy I/O interrupt load.
1581 config MIPS_VPE_LOADER_TOM
1582 bool "Load VPE program into memory hidden from linux"
1583 depends on MIPS_VPE_LOADER
1586 The loader can use memory that is present but has been hidden from
1587 Linux using the kernel command line option "mem=xxMB". It's up to
1588 you to ensure the amount you put in the option and the space your
1589 program requires is less or equal to the amount physically present.
1591 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1592 config MIPS_VPE_APSP_API
1593 bool "Enable support for AP/SP API (RTLX)"
1594 depends on MIPS_VPE_LOADER
1597 config MIPS_APSP_KSPD
1599 depends on MIPS_VPE_APSP_API
1602 KSPD is a kernel daemon that accepts syscall requests from the SP
1603 side, actions them and returns the results. It also handles the
1604 "exit" syscall notifying other kernel modules the SP program is
1605 exiting. You probably want to say yes here.
1607 config SB1_PASS_1_WORKAROUNDS
1609 depends on CPU_SB1_PASS_1
1612 config SB1_PASS_2_WORKAROUNDS
1614 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1617 config SB1_PASS_2_1_WORKAROUNDS
1619 depends on CPU_SB1 && CPU_SB1_PASS_2
1622 config 64BIT_PHYS_ADDR
1623 bool "Support for 64-bit physical address space"
1624 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1633 # Vectored interrupt mode is an R2 feature
1635 config CPU_MIPSR2_IRQ_VI
1639 # Extended interrupt mode is an R2 feature
1641 config CPU_MIPSR2_IRQ_EI
1645 # Shadow registers are an R2 feature
1647 config CPU_MIPSR2_SRS
1652 depends on !CPU_R3000
1656 # Use the generic interrupt handling code in kernel/irq/:
1658 config GENERIC_HARDIRQS
1662 config GENERIC_IRQ_PROBE
1670 # - Highmem only makes sense for the 32-bit kernel.
1671 # - The current highmem code will only work properly on physically indexed
1672 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1673 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1674 # moment we protect the user and offer the highmem option only on machines
1675 # where it's known to be safe. This will not offer highmem on a few systems
1676 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1677 # indexed CPUs but we're playing safe.
1678 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1679 # know they might have memory configurations that could make use of highmem
1683 bool "High Memory Support"
1684 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1686 config CPU_SUPPORTS_HIGHMEM
1689 config SYS_SUPPORTS_HIGHMEM
1692 config ARCH_FLATMEM_ENABLE
1696 config ARCH_DISCONTIGMEM_ENABLE
1698 default y if SGI_IP27
1700 Say Y to upport efficient handling of discontiguous physical memory,
1701 for architectures which are either NUMA (Non-Uniform Memory Access)
1702 or have huge holes in the physical address space for other reasons.
1703 See <file:Documentation/vm/numa> for more.
1705 config ARCH_SPARSEMEM_ENABLE
1707 select SPARSEMEM_STATIC
1711 depends on SYS_SUPPORTS_NUMA
1713 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1714 Access). This option improves performance on systems with more
1715 than two nodes; on two node systems it is generally better to
1716 leave it disabled; on single node systems disable this option
1719 config SYS_SUPPORTS_NUMA
1725 depends on NEED_MULTIPLE_NODES
1730 bool "Multi-Processing support"
1731 depends on SYS_SUPPORTS_SMP
1734 This enables support for systems with more than one CPU. If you have
1735 a system with only one CPU, like most personal computers, say N. If
1736 you have a system with more than one CPU, say Y.
1738 If you say N here, the kernel will run on single and multiprocessor
1739 machines, but will use only one CPU of a multiprocessor machine. If
1740 you say Y here, the kernel will run on many, but not all,
1741 singleprocessor machines. On a singleprocessor machine, the kernel
1742 will run faster if you say N here.
1744 People using multiprocessor machines who say Y here should also say
1745 Y to "Enhanced Real Time Clock Support", below.
1747 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1748 available at <http://www.tldp.org/docs.html#howto>.
1750 If you don't know what to do here, say N.
1752 config SYS_SUPPORTS_SMP
1755 config NR_CPUS_DEFAULT_2
1758 config NR_CPUS_DEFAULT_4
1761 config NR_CPUS_DEFAULT_8
1764 config NR_CPUS_DEFAULT_16
1767 config NR_CPUS_DEFAULT_32
1770 config NR_CPUS_DEFAULT_64
1774 int "Maximum number of CPUs (2-64)"
1777 default "2" if NR_CPUS_DEFAULT_2
1778 default "4" if NR_CPUS_DEFAULT_4
1779 default "8" if NR_CPUS_DEFAULT_8
1780 default "16" if NR_CPUS_DEFAULT_16
1781 default "32" if NR_CPUS_DEFAULT_32
1782 default "64" if NR_CPUS_DEFAULT_64
1784 This allows you to specify the maximum number of CPUs which this
1785 kernel will support. The maximum supported value is 32 for 32-bit
1786 kernel and 64 for 64-bit kernels; the minimum value which makes
1789 This is purely to save memory - each supported CPU adds
1790 approximately eight kilobytes to the kernel image.
1793 # Timer Interrupt Frequency Configuration
1797 prompt "Timer frequency"
1800 Allows the configuration of the timer frequency.
1803 bool "48 HZ" if SYS_SUPPORTS_48HZ
1806 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1809 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1812 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1815 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1818 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1821 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1825 config SYS_SUPPORTS_48HZ
1828 config SYS_SUPPORTS_100HZ
1831 config SYS_SUPPORTS_128HZ
1834 config SYS_SUPPORTS_250HZ
1837 config SYS_SUPPORTS_256HZ
1840 config SYS_SUPPORTS_1000HZ
1843 config SYS_SUPPORTS_1024HZ
1846 config SYS_SUPPORTS_ARBIT_HZ
1848 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1849 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1850 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1851 !SYS_SUPPORTS_1024HZ
1856 default 100 if HZ_100
1857 default 128 if HZ_128
1858 default 250 if HZ_250
1859 default 256 if HZ_256
1860 default 1000 if HZ_1000
1861 default 1024 if HZ_1024
1863 source "kernel/Kconfig.preempt"
1866 bool "DS1742 BRAM/RTC support"
1867 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1869 config MIPS_INSANE_LARGE
1870 bool "Support for large 64-bit configurations"
1871 depends on CPU_R10000 && 64BIT
1873 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1874 previous 64-bit processors which only supported 40 bit / 1TB. If you
1875 need processes of more than 1TB virtual address space, say Y here.
1876 This will result in additional memory usage, so it is not
1877 recommended for normal users.
1880 bool "Kexec system call (EXPERIMENTAL)"
1881 depends on EXPERIMENTAL
1883 kexec is a system call that implements the ability to shutdown your
1884 current kernel, and to start another kernel. It is like a reboot
1885 but it is indepedent of the system firmware. And like a reboot
1886 you can start any kernel with it, not just Linux.
1888 The name comes from the similiarity to the exec system call.
1890 It is an ongoing process to be certain the hardware in a machine
1891 is properly shutdown, so do not be surprised if this code does not
1892 initially work for you. It may help to enable device hotplugging
1893 support. As of this writing the exact hardware interface is
1894 strongly in flux, so no good recommendation can be made.
1897 bool "Enable seccomp to safely compute untrusted bytecode"
1898 depends on PROC_FS && BROKEN
1901 This kernel feature is useful for number crunching applications
1902 that may need to compute untrusted bytecode during their
1903 execution. By using pipes or other transports made available to
1904 the process as file descriptors supporting the read/write
1905 syscalls, it's possible to isolate those applications in
1906 their own address space using seccomp. Once seccomp is
1907 enabled via /proc/<pid>/seccomp, it cannot be disabled
1908 and the task is only allowed to execute a few safe syscalls
1909 defined by each seccomp mode.
1911 If unsure, say Y. Only embedded should say N here.
1915 config RWSEM_GENERIC_SPINLOCK
1919 config LOCKDEP_SUPPORT
1923 config STACKTRACE_SUPPORT
1927 source "init/Kconfig"
1929 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1937 bool "Support for PCI controller"
1938 depends on HW_HAS_PCI
1940 Find out whether you have a PCI motherboard. PCI is the name of a
1941 bus system, i.e. the way the CPU talks to the other stuff inside
1942 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1945 The PCI-HOWTO, available from
1946 <http://www.tldp.org/docs.html#howto>, contains valuable
1947 information about which PCI hardware does work under Linux and which
1954 source "drivers/pci/Kconfig"
1957 # ISA support is now enabled via select. Too many systems still have the one
1958 # or other ISA chip on the board that users don't know about so don't expect
1959 # users to choose the right thing ...
1966 depends on HW_HAS_EISA
1968 select GENERIC_ISA_DMA
1970 The Extended Industry Standard Architecture (EISA) bus was
1971 developed as an open alternative to the IBM MicroChannel bus.
1973 The EISA bus provided some of the features of the IBM MicroChannel
1974 bus while maintaining backward compatibility with cards made for
1975 the older ISA bus. The EISA bus saw limited use between 1988 and
1976 1995 when it was made obsolete by the PCI bus.
1978 Say Y here if you are building a kernel for an EISA-based machine.
1982 source "drivers/eisa/Kconfig"
1985 bool "TURBOchannel support"
1986 depends on MACH_DECSTATION
1988 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1989 processors. Documentation on writing device drivers for TurboChannel
1991 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1994 # bool "Access.Bus support"
2004 source "drivers/pcmcia/Kconfig"
2006 source "drivers/pci/hotplug/Kconfig"
2010 menu "Executable file formats"
2012 source "fs/Kconfig.binfmt"
2018 bool "Use 64-bit ELF format for building"
2021 A 64-bit kernel is usually built using the 64-bit ELF binary object
2022 format as it's one that allows arbitrary 64-bit constructs. For
2023 kernels that are loaded within the KSEG compatibility segments the
2024 32-bit ELF format can optionally be used resulting in a somewhat
2025 smaller binary, but this option is not explicitly supported by the
2026 toolchain and since binutils 2.14 it does not even work at all.
2028 Say Y to use the 64-bit format or N to use the 32-bit one.
2033 bool "Include IRIX binary compatibility"
2034 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
2036 config MIPS32_COMPAT
2037 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2040 Select this option if you want Linux/MIPS 32-bit binary
2041 compatibility. Since all software available for Linux/MIPS is
2042 currently 32-bit you should say Y here.
2046 depends on MIPS32_COMPAT
2049 config SYSVIPC_COMPAT
2051 depends on COMPAT && SYSVIPC
2055 bool "Kernel support for o32 binaries"
2056 depends on MIPS32_COMPAT
2058 Select this option if you want to run o32 binaries. These are pure
2059 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2060 existing binaries are in this format.
2065 bool "Kernel support for n32 binaries"
2066 depends on MIPS32_COMPAT
2068 Select this option if you want to run n32 binaries. These are
2069 64-bit binaries using 32-bit quantities for addressing and certain
2070 data that would normally be 64-bit. They are used in special
2077 default y if MIPS32_O32 || MIPS32_N32
2081 menu "Power management options"
2083 source "kernel/power/Kconfig"
2087 source "net/Kconfig"
2089 source "drivers/Kconfig"
2093 source "arch/mips/oprofile/Kconfig"
2095 source "arch/mips/Kconfig.debug"
2097 source "security/Kconfig"
2099 source "crypto/Kconfig"
2101 source "lib/Kconfig"