7 # Horrible source of confusion. Die, die, die ...
11 mainmenu "Linux/MIPS Kernel Configuration"
13 menu "Machine selection"
23 bool "Alchemy processor based machines"
26 bool "Basler eXcite smart camera"
35 select SYS_HAS_CPU_RM9000
36 select SYS_SUPPORTS_32BIT_KERNEL
37 select SYS_SUPPORTS_BIG_ENDIAN
39 The eXcite is a smart camera platform manufactured by
40 Basler Vision Technologies AG.
43 bool "BCM47XX based boards"
46 select DMA_NONCOHERENT
49 select SYS_HAS_CPU_MIPS32_R1
50 select SYS_SUPPORTS_32BIT_KERNEL
51 select SYS_SUPPORTS_LITTLE_ENDIAN
53 select SSB_DRIVER_MIPS
54 select SSB_DRIVER_EXTIF
55 select SSB_PCICORE_HOSTMODE if PCI
57 select SYS_HAS_EARLY_PRINTK
60 Support for BCM47XX based boards
67 select DMA_NONCOHERENT
73 select PCI_GT64XXX_PCI0
74 select SYS_HAS_CPU_NEVADA
75 select SYS_HAS_EARLY_PRINTK
76 select SYS_SUPPORTS_32BIT_KERNEL
77 select SYS_SUPPORTS_64BIT_KERNEL
78 select SYS_SUPPORTS_LITTLE_ENDIAN
79 select GENERIC_HARDIRQS_NO__DO_IRQ
81 config MACH_DECSTATION
88 select CPU_DADDI_WORKAROUNDS if 64BIT
89 select CPU_R4000_WORKAROUNDS if 64BIT
90 select CPU_R4400_WORKAROUNDS if 64BIT
91 select DMA_NONCOHERENT
94 select SYS_HAS_CPU_R3000
95 select SYS_HAS_CPU_R4X00
96 select SYS_SUPPORTS_32BIT_KERNEL
97 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
98 select SYS_SUPPORTS_LITTLE_ENDIAN
99 select SYS_SUPPORTS_128HZ
100 select SYS_SUPPORTS_256HZ
101 select SYS_SUPPORTS_1024HZ
103 This enables support for DEC's MIPS based workstations. For details
104 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
105 DECstation porting pages on <http://decstation.unix-ag.org/>.
107 If you have one of the following DECstation Models you definitely
108 want to choose R4xx0 for the CPU Type:
115 otherwise choose R3000.
118 bool "Jazz family of machines"
121 select ARCH_MAY_HAVE_PC_FDC
124 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
125 select GENERIC_ISA_DMA
130 select SYS_HAS_CPU_R4X00
131 select SYS_SUPPORTS_32BIT_KERNEL
132 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
133 select SYS_SUPPORTS_100HZ
134 select GENERIC_HARDIRQS_NO__DO_IRQ
136 This a family of machines based on the MIPS R4030 chipset which was
137 used by several vendors to build RISC/os and Windows NT workstations.
138 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
139 Olivetti M700-10 workstations.
142 bool "LASAT Networks platforms"
145 select DMA_NONCOHERENT
146 select SYS_HAS_EARLY_PRINTK
149 select PCI_GT64XXX_PCI0
151 select R5000_CPU_SCACHE
152 select SYS_HAS_CPU_R5000
153 select SYS_SUPPORTS_32BIT_KERNEL
154 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
155 select SYS_SUPPORTS_LITTLE_ENDIAN
156 select GENERIC_HARDIRQS_NO__DO_IRQ
159 bool "Lemote Fulong mini-PC"
160 select ARCH_SPARSEMEM_ENABLE
163 select SYS_HAS_CPU_LOONGSON2
164 select DMA_NONCOHERENT
167 select HAVE_STD_PC_SERIAL_PORT
172 select SYS_SUPPORTS_32BIT_KERNEL
173 select SYS_SUPPORTS_64BIT_KERNEL
174 select SYS_SUPPORTS_LITTLE_ENDIAN
175 select SYS_SUPPORTS_HIGHMEM
176 select SYS_HAS_EARLY_PRINTK
177 select GENERIC_HARDIRQS_NO__DO_IRQ
178 select GENERIC_ISA_DMA_SUPPORT_BROKEN
181 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
185 bool "MIPS Malta board"
186 select ARCH_MAY_HAVE_PC_FDC
191 select DMA_NONCOHERENT
192 select GENERIC_ISA_DMA
198 select MIPS_BOARDS_GEN
200 select MIPS_CPU_SCACHE
201 select PCI_GT64XXX_PCI0
204 select SYS_HAS_CPU_MIPS32_R1
205 select SYS_HAS_CPU_MIPS32_R2
206 select SYS_HAS_CPU_MIPS64_R1
207 select SYS_HAS_CPU_NEVADA
208 select SYS_HAS_CPU_RM7000
209 select SYS_HAS_EARLY_PRINTK
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_64BIT_KERNEL
212 select SYS_SUPPORTS_BIG_ENDIAN
213 select SYS_SUPPORTS_LITTLE_ENDIAN
214 select SYS_SUPPORTS_MULTITHREADING
215 select SYS_SUPPORTS_SMARTMIPS
217 This enables support for the MIPS Technologies Malta evaluation
221 bool 'MIPS simulator (MIPSsim)'
224 select DMA_NONCOHERENT
225 select SYS_HAS_EARLY_PRINTK
228 select SYS_HAS_CPU_MIPS32_R1
229 select SYS_HAS_CPU_MIPS32_R2
230 select SYS_HAS_EARLY_PRINTK
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_BIG_ENDIAN
233 select SYS_SUPPORTS_MULTITHREADING
234 select SYS_SUPPORTS_LITTLE_ENDIAN
236 This option enables support for MIPS Technologies MIPSsim software
240 bool "NEC EMMA2RH Mark-eins"
243 select DMA_NONCOHERENT
247 select SYS_SUPPORTS_32BIT_KERNEL
248 select SYS_SUPPORTS_BIG_ENDIAN
249 select SYS_SUPPORTS_LITTLE_ENDIAN
250 select SYS_HAS_CPU_R5000
252 This enables support for the R5432-based NEC Mark-eins
253 boards with R5500 CPU.
256 bool "NEC VR4100 series based machines"
259 select SYS_HAS_CPU_VR41XX
260 select GENERIC_HARDIRQS_NO__DO_IRQ
263 bool "NXP PNX8550 based JBS board"
265 select SYS_SUPPORTS_LITTLE_ENDIAN
267 config PNX8550_STB810
268 bool "NXP PNX8550 based STB810 board"
270 select SYS_SUPPORTS_LITTLE_ENDIAN
273 bool "PMC-Sierra MSP chipsets"
274 depends on EXPERIMENTAL
275 select DMA_NONCOHERENT
277 select NO_EXCEPT_FILL
279 select SYS_HAS_CPU_MIPS32_R1
280 select SYS_HAS_CPU_MIPS32_R2
281 select SYS_SUPPORTS_32BIT_KERNEL
282 select SYS_SUPPORTS_BIG_ENDIAN
285 select SERIAL_8250_CONSOLE
287 This adds support for the PMC-Sierra family of Multi-Service
288 Processor System-On-A-Chips. These parts include a number
289 of integrated peripherals, interfaces and DSPs in addition to
290 a variety of MIPS cores.
293 bool "PMC-Sierra Yosemite eval board"
302 select SYS_HAS_CPU_RM9000
303 select SYS_HAS_EARLY_PRINTK
304 select SYS_SUPPORTS_32BIT_KERNEL
305 select SYS_SUPPORTS_64BIT_KERNEL
306 select SYS_SUPPORTS_BIG_ENDIAN
307 select SYS_SUPPORTS_HIGHMEM
308 select SYS_SUPPORTS_SMP
310 Yosemite is an evaluation board for the RM9000x2 processor
311 manufactured by PMC-Sierra.
314 bool "SGI IP22 (Indy/Indigo2)"
320 select DEFAULT_SGI_PARTITION
321 select DMA_NONCOHERENT
325 select IP22_CPU_SCACHE
327 select GENERIC_ISA_DMA_SUPPORT_BROKEN
328 select SGI_HAS_DS1286
330 select SGI_HAS_INDYDOG
336 select SYS_HAS_CPU_R4X00
337 select SYS_HAS_CPU_R5000
338 select SYS_HAS_EARLY_PRINTK
339 select SYS_SUPPORTS_32BIT_KERNEL
340 select SYS_SUPPORTS_64BIT_KERNEL
341 select SYS_SUPPORTS_BIG_ENDIAN
343 This are the SGI Indy, Challenge S and Indigo2, as well as certain
344 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
345 that runs on these, say Y here.
348 bool "SGI IP27 (Origin200/2000)"
352 select DEFAULT_SGI_PARTITION
354 select SYS_HAS_EARLY_PRINTK
356 select NR_CPUS_DEFAULT_64
357 select SYS_HAS_CPU_R10000
358 select SYS_SUPPORTS_64BIT_KERNEL
359 select SYS_SUPPORTS_BIG_ENDIAN
360 select SYS_SUPPORTS_NUMA
361 select SYS_SUPPORTS_SMP
362 select GENERIC_HARDIRQS_NO__DO_IRQ
364 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
365 workstations. To compile a Linux kernel that runs on these, say Y
369 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
370 depends on EXPERIMENTAL
376 select DEFAULT_SGI_PARTITION
377 select DMA_NONCOHERENT
378 select GENERIC_ISA_DMA_SUPPORT_BROKEN
383 select SGI_HAS_DS1286
385 select SGI_HAS_INDYDOG
391 select SYS_HAS_CPU_R10000
392 select SYS_HAS_EARLY_PRINTK
393 select SYS_SUPPORTS_64BIT_KERNEL
394 select SYS_SUPPORTS_BIG_ENDIAN
396 This is the SGI Indigo2 with R10000 processor. To compile a Linux
397 kernel that runs on these, say Y here.
406 select DMA_NONCOHERENT
409 select R5000_CPU_SCACHE
410 select RM7000_CPU_SCACHE
411 select SYS_HAS_CPU_R5000
412 select SYS_HAS_CPU_R10000 if BROKEN
413 select SYS_HAS_CPU_RM7000
414 select SYS_HAS_CPU_NEVADA
415 select SYS_SUPPORTS_64BIT_KERNEL
416 select SYS_SUPPORTS_BIG_ENDIAN
418 If you want this kernel to run on SGI O2 workstation, say Y here.
421 bool "Sibyte BCM91120C-CRhine"
422 depends on EXPERIMENTAL
425 select SIBYTE_BCM1120
427 select SYS_HAS_CPU_SB1
428 select SYS_SUPPORTS_BIG_ENDIAN
429 select SYS_SUPPORTS_LITTLE_ENDIAN
432 bool "Sibyte BCM91120x-Carmel"
433 depends on EXPERIMENTAL
436 select SIBYTE_BCM1120
438 select SYS_HAS_CPU_SB1
439 select SYS_SUPPORTS_BIG_ENDIAN
440 select SYS_SUPPORTS_LITTLE_ENDIAN
443 bool "Sibyte BCM91125C-CRhone"
444 depends on EXPERIMENTAL
447 select SIBYTE_BCM1125
449 select SYS_HAS_CPU_SB1
450 select SYS_SUPPORTS_BIG_ENDIAN
451 select SYS_SUPPORTS_HIGHMEM
452 select SYS_SUPPORTS_LITTLE_ENDIAN
455 bool "Sibyte BCM91125E-Rhone"
456 depends on EXPERIMENTAL
459 select SIBYTE_BCM1125H
461 select SYS_HAS_CPU_SB1
462 select SYS_SUPPORTS_BIG_ENDIAN
463 select SYS_SUPPORTS_LITTLE_ENDIAN
466 bool "Sibyte BCM91250A-SWARM"
469 select NR_CPUS_DEFAULT_2
472 select SYS_HAS_CPU_SB1
473 select SYS_SUPPORTS_BIG_ENDIAN
474 select SYS_SUPPORTS_HIGHMEM
475 select SYS_SUPPORTS_LITTLE_ENDIAN
476 select ZONE_DMA32 if 64BIT
478 config SIBYTE_LITTLESUR
479 bool "Sibyte BCM91250C2-LittleSur"
480 depends on EXPERIMENTAL
483 select NR_CPUS_DEFAULT_2
486 select SYS_HAS_CPU_SB1
487 select SYS_SUPPORTS_BIG_ENDIAN
488 select SYS_SUPPORTS_HIGHMEM
489 select SYS_SUPPORTS_LITTLE_ENDIAN
491 config SIBYTE_SENTOSA
492 bool "Sibyte BCM91250E-Sentosa"
493 depends on EXPERIMENTAL
496 select NR_CPUS_DEFAULT_2
499 select SYS_HAS_CPU_SB1
500 select SYS_SUPPORTS_BIG_ENDIAN
501 select SYS_SUPPORTS_LITTLE_ENDIAN
504 bool "Sibyte BCM91480B-BigSur"
507 select NR_CPUS_DEFAULT_4
508 select SIBYTE_BCM1x80
510 select SYS_HAS_CPU_SB1
511 select SYS_SUPPORTS_BIG_ENDIAN
512 select SYS_SUPPORTS_HIGHMEM
513 select SYS_SUPPORTS_LITTLE_ENDIAN
514 select ZONE_DMA32 if 64BIT
517 bool "SNI RM200/300/400"
518 select ARC if CPU_LITTLE_ENDIAN
519 select ARC32 if CPU_LITTLE_ENDIAN
520 select SNIPROM if CPU_BIG_ENDIAN
521 select ARCH_MAY_HAVE_PC_FDC
525 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
526 select DMA_NONCOHERENT
527 select GENERIC_ISA_DMA
534 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
535 select SYS_HAS_CPU_R4X00
536 select SYS_HAS_CPU_R5000
537 select SYS_HAS_CPU_R10000
538 select R5000_CPU_SCACHE
539 select SYS_HAS_EARLY_PRINTK
540 select SYS_SUPPORTS_32BIT_KERNEL
541 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
542 select SYS_SUPPORTS_BIG_ENDIAN
543 select SYS_SUPPORTS_HIGHMEM
544 select SYS_SUPPORTS_LITTLE_ENDIAN
546 The SNI RM200/300/400 are MIPS-based machines manufactured by
547 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
548 Technology and now in turn merged with Fujitsu. Say Y here to
549 support this machine type.
552 bool "Toshiba TX39 series based machines"
555 bool "Toshiba TX49 series based machines"
557 config MIKROTIK_RB532
558 bool "Mikrotik RB532 boards"
561 select DMA_NONCOHERENT
562 select GENERIC_HARDIRQS_NO__DO_IRQ
565 select SYS_HAS_CPU_MIPS32_R1
566 select SYS_SUPPORTS_32BIT_KERNEL
567 select SYS_SUPPORTS_LITTLE_ENDIAN
572 Support the Mikrotik(tm) RouterBoard 532 series,
573 based on the IDT RC32434 SoC.
576 bool "Wind River PPMC board"
581 select DMA_NONCOHERENT
583 select PCI_GT64XXX_PCI0
585 select SYS_HAS_CPU_MIPS32_R1
586 select SYS_HAS_CPU_MIPS32_R2
587 select SYS_HAS_CPU_MIPS64_R1
588 select SYS_HAS_CPU_NEVADA
589 select SYS_HAS_CPU_RM7000
590 select SYS_SUPPORTS_32BIT_KERNEL
591 select SYS_SUPPORTS_64BIT_KERNEL
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select SYS_SUPPORTS_LITTLE_ENDIAN
595 This enables support for the Wind River MIPS32 4KC PPMC evaluation
596 board, which is based on GT64120 bridge chip.
600 source "arch/mips/au1000/Kconfig"
601 source "arch/mips/basler/excite/Kconfig"
602 source "arch/mips/jazz/Kconfig"
603 source "arch/mips/lasat/Kconfig"
604 source "arch/mips/pmc-sierra/Kconfig"
605 source "arch/mips/sgi-ip27/Kconfig"
606 source "arch/mips/sibyte/Kconfig"
607 source "arch/mips/txx9/Kconfig"
608 source "arch/mips/vr41xx/Kconfig"
612 config GENERIC_LOCKBREAK
615 depends on SMP && PREEMPT
617 config RWSEM_GENERIC_SPINLOCK
621 config RWSEM_XCHGADD_ALGORITHM
624 config ARCH_HAS_ILOG2_U32
628 config ARCH_HAS_ILOG2_U64
632 config ARCH_SUPPORTS_OPROFILE
634 default y if !MIPS_MT_SMTC
636 config GENERIC_FIND_NEXT_BIT
640 config GENERIC_HWEIGHT
644 config GENERIC_CALIBRATE_DELAY
648 config GENERIC_CLOCKEVENTS
656 config GENERIC_CMOS_UPDATE
660 config SCHED_NO_NO_OMIT_FRAME_POINTER
664 config GENERIC_HARDIRQS_NO__DO_IRQ
669 # Select some configuration options automatically based on user selections.
674 config ARCH_MAY_HAVE_PC_FDC
712 select ARCH_REQUIRE_GPIOLIB
724 config DMA_NONCOHERENT
726 select DMA_NEED_PCI_MAP_STATE
728 config DMA_NEED_PCI_MAP_STATE
732 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
733 depends on SYS_HAS_EARLY_PRINTK
736 This option enables special console drivers which allow the kernel
737 to print messages very early in the bootup process.
739 This is useful for kernel debugging when your machine crashes very
740 early before the console code is initialized. For normal operation,
741 it is not recommended because it looks ugly on some machines and
742 doesn't cooperate with an X server. You should normally say N here,
743 unless you want to debug such a crash.
745 config SYS_HAS_EARLY_PRINTK
764 config MIPS_DISABLE_OBSOLETE_IDE
773 config GENERIC_ISA_DMA
775 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
777 config GENERIC_ISA_DMA_SUPPORT_BROKEN
779 select GENERIC_ISA_DMA
785 # Endianess selection. Sufficiently obscure so many users don't know what to
786 # answer,so we try hard to limit the available choices. Also the use of a
787 # choice statement should be more obvious to the user.
790 prompt "Endianess selection"
792 Some MIPS machines can be configured for either little or big endian
793 byte order. These modes require different kernels and a different
794 Linux distribution. In general there is one preferred byteorder for a
795 particular system but some systems are just as commonly used in the
796 one or the other endianness.
798 config CPU_BIG_ENDIAN
800 depends on SYS_SUPPORTS_BIG_ENDIAN
802 config CPU_LITTLE_ENDIAN
804 depends on SYS_SUPPORTS_LITTLE_ENDIAN
809 config SYS_SUPPORTS_APM_EMULATION
812 config SYS_SUPPORTS_BIG_ENDIAN
815 config SYS_SUPPORTS_LITTLE_ENDIAN
842 config MIPS_BOARDS_GEN
845 config PCI_GT64XXX_PCI0
848 config NO_EXCEPT_FILL
861 select DMA_NONCOHERENT
863 select SYS_HAS_CPU_MIPS32_R1
864 select SYS_HAS_EARLY_PRINTK
865 select SYS_SUPPORTS_32BIT_KERNEL
866 select GENERIC_HARDIRQS_NO__DO_IRQ
880 config SGI_HAS_DS1286
883 config SGI_HAS_INDYDOG
901 config DEFAULT_SGI_PARTITION
913 config MIPS_L1_CACHE_SHIFT
915 default "4" if MACH_DECSTATION || MIKROTIK_RB532
916 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
917 default "4" if PMC_MSP4200_EVAL
920 config HAVE_STD_PC_SERIAL_PORT
924 bool "ARC console support"
925 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
929 depends on MACH_JAZZ || SNI_RM || SGI_IP32
934 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
951 depends on SYS_HAS_CPU_LOONGSON2
952 select CPU_SUPPORTS_32BIT_KERNEL
953 select CPU_SUPPORTS_64BIT_KERNEL
954 select CPU_SUPPORTS_HIGHMEM
956 The Loongson 2E processor implements the MIPS III instruction set
957 with many extensions.
960 bool "MIPS32 Release 1"
961 depends on SYS_HAS_CPU_MIPS32_R1
963 select CPU_HAS_PREFETCH
964 select CPU_SUPPORTS_32BIT_KERNEL
965 select CPU_SUPPORTS_HIGHMEM
967 Choose this option to build a kernel for release 1 or later of the
968 MIPS32 architecture. Most modern embedded systems with a 32-bit
969 MIPS processor are based on a MIPS32 processor. If you know the
970 specific type of processor in your system, choose those that one
971 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
972 Release 2 of the MIPS32 architecture is available since several
973 years so chances are you even have a MIPS32 Release 2 processor
974 in which case you should choose CPU_MIPS32_R2 instead for better
978 bool "MIPS32 Release 2"
979 depends on SYS_HAS_CPU_MIPS32_R2
981 select CPU_HAS_PREFETCH
982 select CPU_SUPPORTS_32BIT_KERNEL
983 select CPU_SUPPORTS_HIGHMEM
985 Choose this option to build a kernel for release 2 or later of the
986 MIPS32 architecture. Most modern embedded systems with a 32-bit
987 MIPS processor are based on a MIPS32 processor. If you know the
988 specific type of processor in your system, choose those that one
989 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
992 bool "MIPS64 Release 1"
993 depends on SYS_HAS_CPU_MIPS64_R1
995 select CPU_HAS_PREFETCH
996 select CPU_SUPPORTS_32BIT_KERNEL
997 select CPU_SUPPORTS_64BIT_KERNEL
998 select CPU_SUPPORTS_HIGHMEM
1000 Choose this option to build a kernel for release 1 or later of the
1001 MIPS64 architecture. Many modern embedded systems with a 64-bit
1002 MIPS processor are based on a MIPS64 processor. If you know the
1003 specific type of processor in your system, choose those that one
1004 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1005 Release 2 of the MIPS64 architecture is available since several
1006 years so chances are you even have a MIPS64 Release 2 processor
1007 in which case you should choose CPU_MIPS64_R2 instead for better
1010 config CPU_MIPS64_R2
1011 bool "MIPS64 Release 2"
1012 depends on SYS_HAS_CPU_MIPS64_R2
1014 select CPU_HAS_PREFETCH
1015 select CPU_SUPPORTS_32BIT_KERNEL
1016 select CPU_SUPPORTS_64BIT_KERNEL
1017 select CPU_SUPPORTS_HIGHMEM
1019 Choose this option to build a kernel for release 2 or later of the
1020 MIPS64 architecture. Many modern embedded systems with a 64-bit
1021 MIPS processor are based on a MIPS64 processor. If you know the
1022 specific type of processor in your system, choose those that one
1023 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1027 depends on SYS_HAS_CPU_R3000
1029 select CPU_SUPPORTS_32BIT_KERNEL
1030 select CPU_SUPPORTS_HIGHMEM
1032 Please make sure to pick the right CPU type. Linux/MIPS is not
1033 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1034 *not* work on R4000 machines and vice versa. However, since most
1035 of the supported machines have an R4000 (or similar) CPU, R4x00
1036 might be a safe bet. If the resulting kernel does not work,
1037 try to recompile with R3000.
1041 depends on SYS_HAS_CPU_TX39XX
1042 select CPU_SUPPORTS_32BIT_KERNEL
1046 depends on SYS_HAS_CPU_VR41XX
1047 select CPU_SUPPORTS_32BIT_KERNEL
1048 select CPU_SUPPORTS_64BIT_KERNEL
1050 The options selects support for the NEC VR4100 series of processors.
1051 Only choose this option if you have one of these processors as a
1052 kernel built with this option will not run on any other type of
1053 processor or vice versa.
1057 depends on SYS_HAS_CPU_R4300
1059 select CPU_SUPPORTS_32BIT_KERNEL
1060 select CPU_SUPPORTS_64BIT_KERNEL
1062 MIPS Technologies R4300-series processors.
1066 depends on SYS_HAS_CPU_R4X00
1068 select CPU_SUPPORTS_32BIT_KERNEL
1069 select CPU_SUPPORTS_64BIT_KERNEL
1071 MIPS Technologies R4000-series processors other than 4300, including
1072 the R4000, R4400, R4600, and 4700.
1076 depends on SYS_HAS_CPU_TX49XX
1078 select CPU_HAS_PREFETCH
1079 select CPU_SUPPORTS_32BIT_KERNEL
1080 select CPU_SUPPORTS_64BIT_KERNEL
1084 depends on SYS_HAS_CPU_R5000
1086 select CPU_SUPPORTS_32BIT_KERNEL
1087 select CPU_SUPPORTS_64BIT_KERNEL
1089 MIPS Technologies R5000-series processors other than the Nevada.
1093 depends on SYS_HAS_CPU_R5432
1095 select CPU_SUPPORTS_32BIT_KERNEL
1096 select CPU_SUPPORTS_64BIT_KERNEL
1100 depends on EXPERIMENTAL
1102 depends on SYS_HAS_CPU_R6000
1103 select CPU_SUPPORTS_32BIT_KERNEL
1105 MIPS Technologies R6000 and R6000A series processors. Note these
1106 processors are extremely rare and the support for them is incomplete.
1110 depends on SYS_HAS_CPU_NEVADA
1112 select CPU_SUPPORTS_32BIT_KERNEL
1113 select CPU_SUPPORTS_64BIT_KERNEL
1115 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1119 depends on EXPERIMENTAL
1120 depends on SYS_HAS_CPU_R8000
1122 select CPU_HAS_PREFETCH
1123 select CPU_SUPPORTS_64BIT_KERNEL
1125 MIPS Technologies R8000 processors. Note these processors are
1126 uncommon and the support for them is incomplete.
1130 depends on SYS_HAS_CPU_R10000
1132 select CPU_HAS_PREFETCH
1133 select CPU_SUPPORTS_32BIT_KERNEL
1134 select CPU_SUPPORTS_64BIT_KERNEL
1135 select CPU_SUPPORTS_HIGHMEM
1137 MIPS Technologies R10000-series processors.
1141 depends on SYS_HAS_CPU_RM7000
1143 select CPU_HAS_PREFETCH
1144 select CPU_SUPPORTS_32BIT_KERNEL
1145 select CPU_SUPPORTS_64BIT_KERNEL
1146 select CPU_SUPPORTS_HIGHMEM
1150 depends on SYS_HAS_CPU_RM9000
1152 select CPU_HAS_PREFETCH
1153 select CPU_SUPPORTS_32BIT_KERNEL
1154 select CPU_SUPPORTS_64BIT_KERNEL
1155 select CPU_SUPPORTS_HIGHMEM
1156 select WEAK_ORDERING
1160 depends on SYS_HAS_CPU_SB1
1162 select CPU_SUPPORTS_32BIT_KERNEL
1163 select CPU_SUPPORTS_64BIT_KERNEL
1164 select CPU_SUPPORTS_HIGHMEM
1165 select WEAK_ORDERING
1169 config SYS_HAS_CPU_LOONGSON2
1172 config SYS_HAS_CPU_MIPS32_R1
1175 config SYS_HAS_CPU_MIPS32_R2
1178 config SYS_HAS_CPU_MIPS64_R1
1181 config SYS_HAS_CPU_MIPS64_R2
1184 config SYS_HAS_CPU_R3000
1187 config SYS_HAS_CPU_TX39XX
1190 config SYS_HAS_CPU_VR41XX
1193 config SYS_HAS_CPU_R4300
1196 config SYS_HAS_CPU_R4X00
1199 config SYS_HAS_CPU_TX49XX
1202 config SYS_HAS_CPU_R5000
1205 config SYS_HAS_CPU_R5432
1208 config SYS_HAS_CPU_R6000
1211 config SYS_HAS_CPU_NEVADA
1214 config SYS_HAS_CPU_R8000
1217 config SYS_HAS_CPU_R10000
1220 config SYS_HAS_CPU_RM7000
1223 config SYS_HAS_CPU_RM9000
1226 config SYS_HAS_CPU_SB1
1230 # CPU may reorder R->R, R->W, W->R, W->W
1231 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1233 config WEAK_ORDERING
1237 # CPU may reorder reads and writes beyond LL/SC
1238 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1240 config WEAK_REORDERING_BEYOND_LLSC
1245 # These two indicate any level of the MIPS32 and MIPS64 architecture
1249 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1253 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1256 # These two indicate the revision of the architecture, either Release 1 or Release 2
1260 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1264 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1266 config SYS_SUPPORTS_32BIT_KERNEL
1268 config SYS_SUPPORTS_64BIT_KERNEL
1270 config CPU_SUPPORTS_32BIT_KERNEL
1272 config CPU_SUPPORTS_64BIT_KERNEL
1279 prompt "Kernel code model"
1281 You should only select this option if you have a workload that
1282 actually benefits from 64-bit processing or if your machine has
1283 large memory. You will only be presented a single option in this
1284 menu if your system does not support both 32-bit and 64-bit kernels.
1287 bool "32-bit kernel"
1288 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1291 Select this option if you want to build a 32-bit kernel.
1293 bool "64-bit kernel"
1294 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1296 Select this option if you want to build a 64-bit kernel.
1301 prompt "Kernel page size"
1302 default PAGE_SIZE_4KB
1304 config PAGE_SIZE_4KB
1307 This option select the standard 4kB Linux page size. On some
1308 R3000-family processors this is the only available page size. Using
1309 4kB page size will minimize memory consumption and is therefore
1310 recommended for low memory systems.
1312 config PAGE_SIZE_8KB
1314 depends on EXPERIMENTAL && CPU_R8000
1316 Using 8kB page size will result in higher performance kernel at
1317 the price of higher memory consumption. This option is available
1318 only on the R8000 processor. Not that at the time of this writing
1319 this option is still high experimental; there are also issues with
1320 compatibility of user applications.
1322 config PAGE_SIZE_16KB
1324 depends on !CPU_R3000 && !CPU_TX39XX
1326 Using 16kB page size will result in higher performance kernel at
1327 the price of higher memory consumption. This option is available on
1328 all non-R3000 family processors. Note that you will need a suitable
1329 Linux distribution to support this.
1331 config PAGE_SIZE_64KB
1333 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1335 Using 64kB page size will result in higher performance kernel at
1336 the price of higher memory consumption. This option is available on
1337 all non-R3000 family processor. Not that at the time of this
1338 writing this option is still high experimental.
1345 config IP22_CPU_SCACHE
1350 # Support for a MIPS32 / MIPS64 style S-caches
1352 config MIPS_CPU_SCACHE
1356 config R5000_CPU_SCACHE
1360 config RM7000_CPU_SCACHE
1364 config SIBYTE_DMA_PAGEOPS
1365 bool "Use DMA to clear/copy pages"
1368 Instead of using the CPU to zero and copy pages, use a Data Mover
1369 channel. These DMA channels are otherwise unused by the standard
1370 SiByte Linux port. Seems to give a small performance benefit.
1372 config CPU_HAS_PREFETCH
1376 prompt "MIPS MT options"
1378 config MIPS_MT_DISABLED
1379 bool "Disable multithreading support."
1381 Use this option if your workload can't take advantage of
1382 MIPS hardware multithreading support. On systems that don't have
1383 the option of an MT-enabled processor this option will be the only
1384 option in this menu.
1387 bool "Use 1 TC on each available VPE for SMP"
1388 depends on SYS_SUPPORTS_MULTITHREADING
1389 select CPU_MIPSR2_IRQ_VI
1390 select CPU_MIPSR2_IRQ_EI
1392 select NR_CPUS_DEFAULT_2
1394 select SYS_SUPPORTS_SCHED_SMT if SMP
1395 select SYS_SUPPORTS_SMP
1398 This is a kernel model which is also known a VSMP or lately
1399 has been marketesed into SMVP.
1402 bool "SMTC: Use all TCs on all VPEs for SMP"
1403 depends on CPU_MIPS32_R2
1404 #depends on CPU_MIPS64_R2 # once there is hardware ...
1405 depends on SYS_SUPPORTS_MULTITHREADING
1406 select CPU_MIPSR2_IRQ_VI
1407 select CPU_MIPSR2_IRQ_EI
1409 select NR_CPUS_DEFAULT_8
1411 select SYS_SUPPORTS_SMP
1414 This is a kernel model which is known a SMTC or lately has been
1415 marketesed into SMVP.
1423 bool "SMT (multithreading) scheduler support"
1424 depends on SYS_SUPPORTS_SCHED_SMT
1427 SMT scheduler support improves the CPU scheduler's decision making
1428 when dealing with MIPS MT enabled cores at a cost of slightly
1429 increased overhead in some places. If unsure say N here.
1431 config SYS_SUPPORTS_SCHED_SMT
1435 config SYS_SUPPORTS_MULTITHREADING
1438 config MIPS_MT_FPAFF
1439 bool "Dynamic FPU affinity for FP-intensive threads"
1441 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1443 config MIPS_VPE_LOADER
1444 bool "VPE loader support."
1445 depends on SYS_SUPPORTS_MULTITHREADING
1446 select CPU_MIPSR2_IRQ_VI
1447 select CPU_MIPSR2_IRQ_EI
1450 Includes a loader for loading an elf relocatable object
1451 onto another VPE and running it.
1453 config MIPS_MT_SMTC_IM_BACKSTOP
1454 bool "Use per-TC register bits as backstop for inhibited IM bits"
1455 depends on MIPS_MT_SMTC
1458 To support multiple TC microthreads acting as "CPUs" within
1459 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1460 during interrupt handling. To support legacy drivers and interrupt
1461 controller management code, SMTC has a "backstop" to track and
1462 if necessary restore the interrupt mask. This has some performance
1463 impact on interrupt service overhead.
1465 config MIPS_MT_SMTC_IRQAFF
1466 bool "Support IRQ affinity API"
1467 depends on MIPS_MT_SMTC
1470 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1471 for SMTC Linux kernel. Requires platform support, of which
1472 an example can be found in the MIPS kernel i8259 and Malta
1473 platform code. Adds some overhead to interrupt dispatch, and
1474 should be used only if you know what you are doing.
1476 config MIPS_VPE_LOADER_TOM
1477 bool "Load VPE program into memory hidden from linux"
1478 depends on MIPS_VPE_LOADER
1481 The loader can use memory that is present but has been hidden from
1482 Linux using the kernel command line option "mem=xxMB". It's up to
1483 you to ensure the amount you put in the option and the space your
1484 program requires is less or equal to the amount physically present.
1486 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1487 config MIPS_VPE_APSP_API
1488 bool "Enable support for AP/SP API (RTLX)"
1489 depends on MIPS_VPE_LOADER
1492 config MIPS_APSP_KSPD
1494 depends on MIPS_VPE_APSP_API
1497 KSPD is a kernel daemon that accepts syscall requests from the SP
1498 side, actions them and returns the results. It also handles the
1499 "exit" syscall notifying other kernel modules the SP program is
1500 exiting. You probably want to say yes here.
1502 config SB1_PASS_1_WORKAROUNDS
1504 depends on CPU_SB1_PASS_1
1507 config SB1_PASS_2_WORKAROUNDS
1509 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1512 config SB1_PASS_2_1_WORKAROUNDS
1514 depends on CPU_SB1 && CPU_SB1_PASS_2
1517 config 64BIT_PHYS_ADDR
1523 config CPU_HAS_SMARTMIPS
1524 depends on SYS_SUPPORTS_SMARTMIPS
1525 bool "Support for the SmartMIPS ASE"
1527 SmartMIPS is a extension of the MIPS32 architecture aimed at
1528 increased security at both hardware and software level for
1529 smartcards. Enabling this option will allow proper use of the
1530 SmartMIPS instructions by Linux applications. However a kernel with
1531 this option will not work on a MIPS core without SmartMIPS core. If
1532 you don't know you probably don't have SmartMIPS and should say N
1539 # Vectored interrupt mode is an R2 feature
1541 config CPU_MIPSR2_IRQ_VI
1545 # Extended interrupt mode is an R2 feature
1547 config CPU_MIPSR2_IRQ_EI
1552 depends on !CPU_R3000
1555 config GENERIC_CLOCKEVENTS_BROADCAST
1561 config CPU_DADDI_WORKAROUNDS
1564 config CPU_R4000_WORKAROUNDS
1566 select CPU_R4400_WORKAROUNDS
1568 config CPU_R4400_WORKAROUNDS
1572 # Use the generic interrupt handling code in kernel/irq/:
1574 config GENERIC_HARDIRQS
1578 config GENERIC_IRQ_PROBE
1586 # - Highmem only makes sense for the 32-bit kernel.
1587 # - The current highmem code will only work properly on physically indexed
1588 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1589 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1590 # moment we protect the user and offer the highmem option only on machines
1591 # where it's known to be safe. This will not offer highmem on a few systems
1592 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1593 # indexed CPUs but we're playing safe.
1594 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1595 # know they might have memory configurations that could make use of highmem
1599 bool "High Memory Support"
1600 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1602 config CPU_SUPPORTS_HIGHMEM
1605 config SYS_SUPPORTS_HIGHMEM
1608 config SYS_SUPPORTS_SMARTMIPS
1611 config ARCH_FLATMEM_ENABLE
1615 config ARCH_DISCONTIGMEM_ENABLE
1617 default y if SGI_IP27
1619 Say Y to support efficient handling of discontiguous physical memory,
1620 for architectures which are either NUMA (Non-Uniform Memory Access)
1621 or have huge holes in the physical address space for other reasons.
1622 See <file:Documentation/vm/numa> for more.
1624 config ARCH_POPULATES_NODE_MAP
1627 config ARCH_SPARSEMEM_ENABLE
1629 select SPARSEMEM_STATIC
1633 depends on SYS_SUPPORTS_NUMA
1635 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1636 Access). This option improves performance on systems with more
1637 than two nodes; on two node systems it is generally better to
1638 leave it disabled; on single node systems disable this option
1641 config SYS_SUPPORTS_NUMA
1647 depends on NEED_MULTIPLE_NODES
1652 bool "Multi-Processing support"
1653 depends on SYS_SUPPORTS_SMP
1655 select USE_GENERIC_SMP_HELPERS
1657 This enables support for systems with more than one CPU. If you have
1658 a system with only one CPU, like most personal computers, say N. If
1659 you have a system with more than one CPU, say Y.
1661 If you say N here, the kernel will run on single and multiprocessor
1662 machines, but will use only one CPU of a multiprocessor machine. If
1663 you say Y here, the kernel will run on many, but not all,
1664 singleprocessor machines. On a singleprocessor machine, the kernel
1665 will run faster if you say N here.
1667 People using multiprocessor machines who say Y here should also say
1668 Y to "Enhanced Real Time Clock Support", below.
1670 See also the SMP-HOWTO available at
1671 <http://www.tldp.org/docs.html#howto>.
1673 If you don't know what to do here, say N.
1678 config SYS_SUPPORTS_SMP
1681 config NR_CPUS_DEFAULT_1
1684 config NR_CPUS_DEFAULT_2
1687 config NR_CPUS_DEFAULT_4
1690 config NR_CPUS_DEFAULT_8
1693 config NR_CPUS_DEFAULT_16
1696 config NR_CPUS_DEFAULT_32
1699 config NR_CPUS_DEFAULT_64
1703 int "Maximum number of CPUs (2-64)"
1704 range 1 64 if NR_CPUS_DEFAULT_1
1706 default "1" if NR_CPUS_DEFAULT_1
1707 default "2" if NR_CPUS_DEFAULT_2
1708 default "4" if NR_CPUS_DEFAULT_4
1709 default "8" if NR_CPUS_DEFAULT_8
1710 default "16" if NR_CPUS_DEFAULT_16
1711 default "32" if NR_CPUS_DEFAULT_32
1712 default "64" if NR_CPUS_DEFAULT_64
1714 This allows you to specify the maximum number of CPUs which this
1715 kernel will support. The maximum supported value is 32 for 32-bit
1716 kernel and 64 for 64-bit kernels; the minimum value which makes
1717 sense is 1 for Qemu (useful only for kernel debugging purposes)
1718 and 2 for all others.
1720 This is purely to save memory - each supported CPU adds
1721 approximately eight kilobytes to the kernel image. For best
1722 performance should round up your number of processors to the next
1726 bool "MIPS CMP framework support"
1729 select SYS_SUPPORTS_SCHED_SMT
1730 select WEAK_ORDERING
1733 This is a placeholder option for the GCMP work. It will need to
1734 be handled differently...
1736 source "kernel/time/Kconfig"
1739 # Timer Interrupt Frequency Configuration
1743 prompt "Timer frequency"
1746 Allows the configuration of the timer frequency.
1749 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1752 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1755 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1758 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1761 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1764 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1767 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1771 config SYS_SUPPORTS_48HZ
1774 config SYS_SUPPORTS_100HZ
1777 config SYS_SUPPORTS_128HZ
1780 config SYS_SUPPORTS_250HZ
1783 config SYS_SUPPORTS_256HZ
1786 config SYS_SUPPORTS_1000HZ
1789 config SYS_SUPPORTS_1024HZ
1792 config SYS_SUPPORTS_ARBIT_HZ
1794 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1795 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1796 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1797 !SYS_SUPPORTS_1024HZ
1802 default 100 if HZ_100
1803 default 128 if HZ_128
1804 default 250 if HZ_250
1805 default 256 if HZ_256
1806 default 1000 if HZ_1000
1807 default 1024 if HZ_1024
1809 source "kernel/Kconfig.preempt"
1811 config MIPS_INSANE_LARGE
1812 bool "Support for large 64-bit configurations"
1813 depends on CPU_R10000 && 64BIT
1815 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1816 previous 64-bit processors which only supported 40 bit / 1TB. If you
1817 need processes of more than 1TB virtual address space, say Y here.
1818 This will result in additional memory usage, so it is not
1819 recommended for normal users.
1822 bool "Kexec system call (EXPERIMENTAL)"
1823 depends on EXPERIMENTAL
1825 kexec is a system call that implements the ability to shutdown your
1826 current kernel, and to start another kernel. It is like a reboot
1827 but it is independent of the system firmware. And like a reboot
1828 you can start any kernel with it, not just Linux.
1830 The name comes from the similarity to the exec system call.
1832 It is an ongoing process to be certain the hardware in a machine
1833 is properly shutdown, so do not be surprised if this code does not
1834 initially work for you. It may help to enable device hotplugging
1835 support. As of this writing the exact hardware interface is
1836 strongly in flux, so no good recommendation can be made.
1839 bool "Enable seccomp to safely compute untrusted bytecode"
1843 This kernel feature is useful for number crunching applications
1844 that may need to compute untrusted bytecode during their
1845 execution. By using pipes or other transports made available to
1846 the process as file descriptors supporting the read/write
1847 syscalls, it's possible to isolate those applications in
1848 their own address space using seccomp. Once seccomp is
1849 enabled via /proc/<pid>/seccomp, it cannot be disabled
1850 and the task is only allowed to execute a few safe syscalls
1851 defined by each seccomp mode.
1853 If unsure, say Y. Only embedded should say N here.
1857 config RWSEM_GENERIC_SPINLOCK
1861 config LOCKDEP_SUPPORT
1865 config STACKTRACE_SUPPORT
1869 source "init/Kconfig"
1871 config PROBE_INITRD_HEADER
1872 bool "Probe initrd header created by addinitrd"
1873 depends on BLK_DEV_INITRD
1875 Probe initrd header at the last page of kernel image.
1876 Say Y here if you are using arch/mips/boot/addinitrd.c to
1877 add initrd or initramfs image to the kernel image.
1880 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1888 bool "Support for PCI controller"
1889 depends on HW_HAS_PCI
1892 Find out whether you have a PCI motherboard. PCI is the name of a
1893 bus system, i.e. the way the CPU talks to the other stuff inside
1894 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1900 source "drivers/pci/Kconfig"
1903 # ISA support is now enabled via select. Too many systems still have the one
1904 # or other ISA chip on the board that users don't know about so don't expect
1905 # users to choose the right thing ...
1912 depends on HW_HAS_EISA
1914 select GENERIC_ISA_DMA
1916 The Extended Industry Standard Architecture (EISA) bus was
1917 developed as an open alternative to the IBM MicroChannel bus.
1919 The EISA bus provided some of the features of the IBM MicroChannel
1920 bus while maintaining backward compatibility with cards made for
1921 the older ISA bus. The EISA bus saw limited use between 1988 and
1922 1995 when it was made obsolete by the PCI bus.
1924 Say Y here if you are building a kernel for an EISA-based machine.
1928 source "drivers/eisa/Kconfig"
1931 bool "TURBOchannel support"
1932 depends on MACH_DECSTATION
1934 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1935 processors. Documentation on writing device drivers for TurboChannel
1937 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1940 # bool "Access.Bus support"
1953 source "drivers/pcmcia/Kconfig"
1955 source "drivers/pci/hotplug/Kconfig"
1959 menu "Executable file formats"
1961 source "fs/Kconfig.binfmt"
1966 config MIPS32_COMPAT
1967 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1970 Select this option if you want Linux/MIPS 32-bit binary
1971 compatibility. Since all software available for Linux/MIPS is
1972 currently 32-bit you should say Y here.
1976 depends on MIPS32_COMPAT
1979 config SYSVIPC_COMPAT
1981 depends on COMPAT && SYSVIPC
1985 bool "Kernel support for o32 binaries"
1986 depends on MIPS32_COMPAT
1988 Select this option if you want to run o32 binaries. These are pure
1989 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1990 existing binaries are in this format.
1995 bool "Kernel support for n32 binaries"
1996 depends on MIPS32_COMPAT
1998 Select this option if you want to run n32 binaries. These are
1999 64-bit binaries using 32-bit quantities for addressing and certain
2000 data that would normally be 64-bit. They are used in special
2007 default y if MIPS32_O32 || MIPS32_N32
2011 menu "Power management options"
2013 config ARCH_SUSPEND_POSSIBLE
2017 source "kernel/power/Kconfig"
2021 source "net/Kconfig"
2023 source "drivers/Kconfig"
2027 source "arch/mips/Kconfig.debug"
2029 source "security/Kconfig"
2031 source "crypto/Kconfig"
2033 source "lib/Kconfig"