6 # Horrible source of confusion. Die, die, die ...
10 mainmenu "Linux/MIPS Kernel Configuration"
12 menu "Machine selection"
22 bool "Alchemy processor based machines"
25 bool "Basler eXcite smart camera"
34 select SYS_HAS_CPU_RM9000
35 select SYS_SUPPORTS_32BIT_KERNEL
36 select SYS_SUPPORTS_BIG_ENDIAN
38 The eXcite is a smart camera platform manufactured by
39 Basler Vision Technologies AG.
42 bool "BCM47XX based boards"
45 select DMA_NONCOHERENT
48 select SYS_HAS_CPU_MIPS32_R1
49 select SYS_SUPPORTS_32BIT_KERNEL
50 select SYS_SUPPORTS_LITTLE_ENDIAN
52 select SSB_DRIVER_MIPS
53 select SSB_DRIVER_EXTIF
54 select SSB_PCICORE_HOSTMODE if PCI
56 select SYS_HAS_EARLY_PRINTK
59 Support for BCM47XX based boards
66 select DMA_NONCOHERENT
72 select PCI_GT64XXX_PCI0
73 select SYS_HAS_CPU_NEVADA
74 select SYS_HAS_EARLY_PRINTK
75 select SYS_SUPPORTS_32BIT_KERNEL
76 select SYS_SUPPORTS_64BIT_KERNEL
77 select SYS_SUPPORTS_LITTLE_ENDIAN
78 select GENERIC_HARDIRQS_NO__DO_IRQ
80 config MACH_DECSTATION
87 select CPU_DADDI_WORKAROUNDS if 64BIT
88 select CPU_R4000_WORKAROUNDS if 64BIT
89 select CPU_R4400_WORKAROUNDS if 64BIT
90 select DMA_NONCOHERENT
93 select SYS_HAS_CPU_R3000
94 select SYS_HAS_CPU_R4X00
95 select SYS_SUPPORTS_32BIT_KERNEL
96 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
97 select SYS_SUPPORTS_LITTLE_ENDIAN
98 select SYS_SUPPORTS_128HZ
99 select SYS_SUPPORTS_256HZ
100 select SYS_SUPPORTS_1024HZ
102 This enables support for DEC's MIPS based workstations. For details
103 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
104 DECstation porting pages on <http://decstation.unix-ag.org/>.
106 If you have one of the following DECstation Models you definitely
107 want to choose R4xx0 for the CPU Type:
114 otherwise choose R3000.
117 bool "Jazz family of machines"
120 select ARCH_MAY_HAVE_PC_FDC
123 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
124 select GENERIC_ISA_DMA
129 select SYS_HAS_CPU_R4X00
130 select SYS_SUPPORTS_32BIT_KERNEL
131 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
132 select SYS_SUPPORTS_100HZ
133 select GENERIC_HARDIRQS_NO__DO_IRQ
135 This a family of machines based on the MIPS R4030 chipset which was
136 used by several vendors to build RISC/os and Windows NT workstations.
137 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
138 Olivetti M700-10 workstations.
141 bool "LASAT Networks platforms"
144 select DMA_NONCOHERENT
145 select SYS_HAS_EARLY_PRINTK
148 select PCI_GT64XXX_PCI0
150 select R5000_CPU_SCACHE
151 select SYS_HAS_CPU_R5000
152 select SYS_SUPPORTS_32BIT_KERNEL
153 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
154 select SYS_SUPPORTS_LITTLE_ENDIAN
155 select GENERIC_HARDIRQS_NO__DO_IRQ
158 bool "Lemote Fulong mini-PC"
159 select ARCH_SPARSEMEM_ENABLE
162 select SYS_HAS_CPU_LOONGSON2
163 select DMA_NONCOHERENT
166 select HAVE_STD_PC_SERIAL_PORT
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_64BIT_KERNEL
173 select SYS_SUPPORTS_LITTLE_ENDIAN
174 select SYS_SUPPORTS_HIGHMEM
175 select SYS_HAS_EARLY_PRINTK
176 select GENERIC_HARDIRQS_NO__DO_IRQ
177 select GENERIC_ISA_DMA_SUPPORT_BROKEN
180 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
184 bool "MIPS Malta board"
185 select ARCH_MAY_HAVE_PC_FDC
190 select DMA_NONCOHERENT
191 select GENERIC_ISA_DMA
197 select MIPS_BOARDS_GEN
199 select MIPS_CPU_SCACHE
200 select PCI_GT64XXX_PCI0
203 select SYS_HAS_CPU_MIPS32_R1
204 select SYS_HAS_CPU_MIPS32_R2
205 select SYS_HAS_CPU_MIPS64_R1
206 select SYS_HAS_CPU_NEVADA
207 select SYS_HAS_CPU_RM7000
208 select SYS_HAS_EARLY_PRINTK
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_64BIT_KERNEL
211 select SYS_SUPPORTS_BIG_ENDIAN
212 select SYS_SUPPORTS_LITTLE_ENDIAN
213 select SYS_SUPPORTS_MULTITHREADING
214 select SYS_SUPPORTS_SMARTMIPS
216 This enables support for the MIPS Technologies Malta evaluation
220 bool 'MIPS simulator (MIPSsim)'
223 select DMA_NONCOHERENT
224 select SYS_HAS_EARLY_PRINTK
227 select SYS_HAS_CPU_MIPS32_R1
228 select SYS_HAS_CPU_MIPS32_R2
229 select SYS_HAS_EARLY_PRINTK
230 select SYS_SUPPORTS_32BIT_KERNEL
231 select SYS_SUPPORTS_BIG_ENDIAN
232 select SYS_SUPPORTS_MULTITHREADING
233 select SYS_SUPPORTS_LITTLE_ENDIAN
235 This option enables support for MIPS Technologies MIPSsim software
239 bool "NEC EMMA2RH Mark-eins"
242 select DMA_NONCOHERENT
246 select SYS_SUPPORTS_32BIT_KERNEL
247 select SYS_SUPPORTS_BIG_ENDIAN
248 select SYS_SUPPORTS_LITTLE_ENDIAN
249 select SYS_HAS_CPU_R5000
251 This enables support for the R5432-based NEC Mark-eins
252 boards with R5500 CPU.
255 bool "NEC VR4100 series based machines"
258 select SYS_HAS_CPU_VR41XX
259 select GENERIC_HARDIRQS_NO__DO_IRQ
262 bool "NXP PNX8550 based JBS board"
264 select SYS_SUPPORTS_LITTLE_ENDIAN
266 config PNX8550_STB810
267 bool "NXP PNX8550 based STB810 board"
269 select SYS_SUPPORTS_LITTLE_ENDIAN
272 bool "PMC-Sierra MSP chipsets"
273 depends on EXPERIMENTAL
274 select DMA_NONCOHERENT
276 select NO_EXCEPT_FILL
278 select SYS_HAS_CPU_MIPS32_R1
279 select SYS_HAS_CPU_MIPS32_R2
280 select SYS_SUPPORTS_32BIT_KERNEL
281 select SYS_SUPPORTS_BIG_ENDIAN
284 select SERIAL_8250_CONSOLE
286 This adds support for the PMC-Sierra family of Multi-Service
287 Processor System-On-A-Chips. These parts include a number
288 of integrated peripherals, interfaces and DSPs in addition to
289 a variety of MIPS cores.
292 bool "PMC-Sierra Yosemite eval board"
301 select SYS_HAS_CPU_RM9000
302 select SYS_HAS_EARLY_PRINTK
303 select SYS_SUPPORTS_32BIT_KERNEL
304 select SYS_SUPPORTS_64BIT_KERNEL
305 select SYS_SUPPORTS_BIG_ENDIAN
306 select SYS_SUPPORTS_HIGHMEM
307 select SYS_SUPPORTS_SMP
309 Yosemite is an evaluation board for the RM9000x2 processor
310 manufactured by PMC-Sierra.
313 bool "SGI IP22 (Indy/Indigo2)"
319 select DEFAULT_SGI_PARTITION
320 select DMA_NONCOHERENT
324 select IP22_CPU_SCACHE
326 select GENERIC_ISA_DMA_SUPPORT_BROKEN
327 select SGI_HAS_DS1286
329 select SGI_HAS_INDYDOG
335 select SYS_HAS_CPU_R4X00
336 select SYS_HAS_CPU_R5000
337 select SYS_HAS_EARLY_PRINTK
338 select SYS_SUPPORTS_32BIT_KERNEL
339 select SYS_SUPPORTS_64BIT_KERNEL
340 select SYS_SUPPORTS_BIG_ENDIAN
342 This are the SGI Indy, Challenge S and Indigo2, as well as certain
343 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
344 that runs on these, say Y here.
347 bool "SGI IP27 (Origin200/2000)"
351 select DEFAULT_SGI_PARTITION
353 select SYS_HAS_EARLY_PRINTK
355 select NR_CPUS_DEFAULT_64
356 select SYS_HAS_CPU_R10000
357 select SYS_SUPPORTS_64BIT_KERNEL
358 select SYS_SUPPORTS_BIG_ENDIAN
359 select SYS_SUPPORTS_NUMA
360 select SYS_SUPPORTS_SMP
361 select GENERIC_HARDIRQS_NO__DO_IRQ
363 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
364 workstations. To compile a Linux kernel that runs on these, say Y
368 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
369 depends on EXPERIMENTAL
375 select DEFAULT_SGI_PARTITION
376 select DMA_NONCOHERENT
377 select GENERIC_ISA_DMA_SUPPORT_BROKEN
382 select SGI_HAS_DS1286
384 select SGI_HAS_INDYDOG
390 select SYS_HAS_CPU_R10000
391 select SYS_HAS_EARLY_PRINTK
392 select SYS_SUPPORTS_64BIT_KERNEL
393 select SYS_SUPPORTS_BIG_ENDIAN
395 This is the SGI Indigo2 with R10000 processor. To compile a Linux
396 kernel that runs on these, say Y here.
405 select DMA_NONCOHERENT
408 select R5000_CPU_SCACHE
409 select RM7000_CPU_SCACHE
410 select SYS_HAS_CPU_R5000
411 select SYS_HAS_CPU_R10000 if BROKEN
412 select SYS_HAS_CPU_RM7000
413 select SYS_HAS_CPU_NEVADA
414 select SYS_SUPPORTS_64BIT_KERNEL
415 select SYS_SUPPORTS_BIG_ENDIAN
417 If you want this kernel to run on SGI O2 workstation, say Y here.
420 bool "Sibyte BCM91120C-CRhine"
421 depends on EXPERIMENTAL
424 select SIBYTE_BCM1120
426 select SYS_HAS_CPU_SB1
427 select SYS_SUPPORTS_BIG_ENDIAN
428 select SYS_SUPPORTS_LITTLE_ENDIAN
431 bool "Sibyte BCM91120x-Carmel"
432 depends on EXPERIMENTAL
435 select SIBYTE_BCM1120
437 select SYS_HAS_CPU_SB1
438 select SYS_SUPPORTS_BIG_ENDIAN
439 select SYS_SUPPORTS_LITTLE_ENDIAN
442 bool "Sibyte BCM91125C-CRhone"
443 depends on EXPERIMENTAL
446 select SIBYTE_BCM1125
448 select SYS_HAS_CPU_SB1
449 select SYS_SUPPORTS_BIG_ENDIAN
450 select SYS_SUPPORTS_HIGHMEM
451 select SYS_SUPPORTS_LITTLE_ENDIAN
454 bool "Sibyte BCM91125E-Rhone"
455 depends on EXPERIMENTAL
458 select SIBYTE_BCM1125H
460 select SYS_HAS_CPU_SB1
461 select SYS_SUPPORTS_BIG_ENDIAN
462 select SYS_SUPPORTS_LITTLE_ENDIAN
465 bool "Sibyte BCM91250A-SWARM"
468 select NR_CPUS_DEFAULT_2
471 select SYS_HAS_CPU_SB1
472 select SYS_SUPPORTS_BIG_ENDIAN
473 select SYS_SUPPORTS_HIGHMEM
474 select SYS_SUPPORTS_LITTLE_ENDIAN
475 select ZONE_DMA32 if 64BIT
477 config SIBYTE_LITTLESUR
478 bool "Sibyte BCM91250C2-LittleSur"
479 depends on EXPERIMENTAL
482 select NR_CPUS_DEFAULT_2
485 select SYS_HAS_CPU_SB1
486 select SYS_SUPPORTS_BIG_ENDIAN
487 select SYS_SUPPORTS_HIGHMEM
488 select SYS_SUPPORTS_LITTLE_ENDIAN
490 config SIBYTE_SENTOSA
491 bool "Sibyte BCM91250E-Sentosa"
492 depends on EXPERIMENTAL
495 select NR_CPUS_DEFAULT_2
498 select SYS_HAS_CPU_SB1
499 select SYS_SUPPORTS_BIG_ENDIAN
500 select SYS_SUPPORTS_LITTLE_ENDIAN
503 bool "Sibyte BCM91480B-BigSur"
506 select NR_CPUS_DEFAULT_4
507 select SIBYTE_BCM1x80
509 select SYS_HAS_CPU_SB1
510 select SYS_SUPPORTS_BIG_ENDIAN
511 select SYS_SUPPORTS_HIGHMEM
512 select SYS_SUPPORTS_LITTLE_ENDIAN
513 select ZONE_DMA32 if 64BIT
516 bool "SNI RM200/300/400"
517 select ARC if CPU_LITTLE_ENDIAN
518 select ARC32 if CPU_LITTLE_ENDIAN
519 select SNIPROM if CPU_BIG_ENDIAN
520 select ARCH_MAY_HAVE_PC_FDC
524 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
525 select DMA_NONCOHERENT
526 select GENERIC_ISA_DMA
533 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
534 select SYS_HAS_CPU_R4X00
535 select SYS_HAS_CPU_R5000
536 select SYS_HAS_CPU_R10000
537 select R5000_CPU_SCACHE
538 select SYS_HAS_EARLY_PRINTK
539 select SYS_SUPPORTS_32BIT_KERNEL
540 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
541 select SYS_SUPPORTS_BIG_ENDIAN
542 select SYS_SUPPORTS_HIGHMEM
543 select SYS_SUPPORTS_LITTLE_ENDIAN
545 The SNI RM200/300/400 are MIPS-based machines manufactured by
546 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
547 Technology and now in turn merged with Fujitsu. Say Y here to
548 support this machine type.
551 bool "Toshiba TX39 series based machines"
554 bool "Toshiba TX49 series based machines"
556 config MIKROTIK_RB532
557 bool "Mikrotik RB532 boards"
560 select DMA_NONCOHERENT
561 select GENERIC_HARDIRQS_NO__DO_IRQ
564 select SYS_HAS_CPU_MIPS32_R1
565 select SYS_SUPPORTS_32BIT_KERNEL
566 select SYS_SUPPORTS_LITTLE_ENDIAN
571 Support the Mikrotik(tm) RouterBoard 532 series,
572 based on the IDT RC32434 SoC.
575 bool "Wind River PPMC board"
580 select DMA_NONCOHERENT
582 select PCI_GT64XXX_PCI0
584 select SYS_HAS_CPU_MIPS32_R1
585 select SYS_HAS_CPU_MIPS32_R2
586 select SYS_HAS_CPU_MIPS64_R1
587 select SYS_HAS_CPU_NEVADA
588 select SYS_HAS_CPU_RM7000
589 select SYS_SUPPORTS_32BIT_KERNEL
590 select SYS_SUPPORTS_64BIT_KERNEL
591 select SYS_SUPPORTS_BIG_ENDIAN
592 select SYS_SUPPORTS_LITTLE_ENDIAN
594 This enables support for the Wind River MIPS32 4KC PPMC evaluation
595 board, which is based on GT64120 bridge chip.
599 source "arch/mips/au1000/Kconfig"
600 source "arch/mips/basler/excite/Kconfig"
601 source "arch/mips/jazz/Kconfig"
602 source "arch/mips/lasat/Kconfig"
603 source "arch/mips/pmc-sierra/Kconfig"
604 source "arch/mips/sgi-ip27/Kconfig"
605 source "arch/mips/sibyte/Kconfig"
606 source "arch/mips/txx9/Kconfig"
607 source "arch/mips/vr41xx/Kconfig"
611 config GENERIC_LOCKBREAK
614 depends on SMP && PREEMPT
616 config RWSEM_GENERIC_SPINLOCK
620 config RWSEM_XCHGADD_ALGORITHM
623 config ARCH_HAS_ILOG2_U32
627 config ARCH_HAS_ILOG2_U64
631 config ARCH_SUPPORTS_OPROFILE
633 default y if !MIPS_MT_SMTC
635 config GENERIC_FIND_NEXT_BIT
639 config GENERIC_HWEIGHT
643 config GENERIC_CALIBRATE_DELAY
647 config GENERIC_CLOCKEVENTS
655 config GENERIC_CMOS_UPDATE
659 config SCHED_NO_NO_OMIT_FRAME_POINTER
663 config GENERIC_HARDIRQS_NO__DO_IRQ
668 # Select some configuration options automatically based on user selections.
673 config ARCH_MAY_HAVE_PC_FDC
711 select ARCH_REQUIRE_GPIOLIB
723 config DMA_NONCOHERENT
725 select DMA_NEED_PCI_MAP_STATE
727 config DMA_NEED_PCI_MAP_STATE
731 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
732 depends on SYS_HAS_EARLY_PRINTK
735 This option enables special console drivers which allow the kernel
736 to print messages very early in the bootup process.
738 This is useful for kernel debugging when your machine crashes very
739 early before the console code is initialized. For normal operation,
740 it is not recommended because it looks ugly on some machines and
741 doesn't cooperate with an X server. You should normally say N here,
742 unless you want to debug such a crash.
744 config SYS_HAS_EARLY_PRINTK
763 config MIPS_DISABLE_OBSOLETE_IDE
772 config GENERIC_ISA_DMA
774 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
776 config GENERIC_ISA_DMA_SUPPORT_BROKEN
778 select GENERIC_ISA_DMA
784 # Endianess selection. Sufficiently obscure so many users don't know what to
785 # answer,so we try hard to limit the available choices. Also the use of a
786 # choice statement should be more obvious to the user.
789 prompt "Endianess selection"
791 Some MIPS machines can be configured for either little or big endian
792 byte order. These modes require different kernels and a different
793 Linux distribution. In general there is one preferred byteorder for a
794 particular system but some systems are just as commonly used in the
795 one or the other endianness.
797 config CPU_BIG_ENDIAN
799 depends on SYS_SUPPORTS_BIG_ENDIAN
801 config CPU_LITTLE_ENDIAN
803 depends on SYS_SUPPORTS_LITTLE_ENDIAN
808 config SYS_SUPPORTS_APM_EMULATION
811 config SYS_SUPPORTS_BIG_ENDIAN
814 config SYS_SUPPORTS_LITTLE_ENDIAN
841 config MIPS_BOARDS_GEN
844 config PCI_GT64XXX_PCI0
847 config NO_EXCEPT_FILL
860 select DMA_NONCOHERENT
862 select SYS_HAS_CPU_MIPS32_R1
863 select SYS_HAS_EARLY_PRINTK
864 select SYS_SUPPORTS_32BIT_KERNEL
865 select GENERIC_HARDIRQS_NO__DO_IRQ
879 config SGI_HAS_DS1286
882 config SGI_HAS_INDYDOG
900 config DEFAULT_SGI_PARTITION
912 config MIPS_L1_CACHE_SHIFT
914 default "4" if MACH_DECSTATION || MIKROTIK_RB532
915 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
916 default "4" if PMC_MSP4200_EVAL
919 config HAVE_STD_PC_SERIAL_PORT
923 bool "ARC console support"
924 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
928 depends on MACH_JAZZ || SNI_RM || SGI_IP32
933 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
950 depends on SYS_HAS_CPU_LOONGSON2
951 select CPU_SUPPORTS_32BIT_KERNEL
952 select CPU_SUPPORTS_64BIT_KERNEL
953 select CPU_SUPPORTS_HIGHMEM
955 The Loongson 2E processor implements the MIPS III instruction set
956 with many extensions.
959 bool "MIPS32 Release 1"
960 depends on SYS_HAS_CPU_MIPS32_R1
962 select CPU_HAS_PREFETCH
963 select CPU_SUPPORTS_32BIT_KERNEL
964 select CPU_SUPPORTS_HIGHMEM
966 Choose this option to build a kernel for release 1 or later of the
967 MIPS32 architecture. Most modern embedded systems with a 32-bit
968 MIPS processor are based on a MIPS32 processor. If you know the
969 specific type of processor in your system, choose those that one
970 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
971 Release 2 of the MIPS32 architecture is available since several
972 years so chances are you even have a MIPS32 Release 2 processor
973 in which case you should choose CPU_MIPS32_R2 instead for better
977 bool "MIPS32 Release 2"
978 depends on SYS_HAS_CPU_MIPS32_R2
980 select CPU_HAS_PREFETCH
981 select CPU_SUPPORTS_32BIT_KERNEL
982 select CPU_SUPPORTS_HIGHMEM
984 Choose this option to build a kernel for release 2 or later of the
985 MIPS32 architecture. Most modern embedded systems with a 32-bit
986 MIPS processor are based on a MIPS32 processor. If you know the
987 specific type of processor in your system, choose those that one
988 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
991 bool "MIPS64 Release 1"
992 depends on SYS_HAS_CPU_MIPS64_R1
994 select CPU_HAS_PREFETCH
995 select CPU_SUPPORTS_32BIT_KERNEL
996 select CPU_SUPPORTS_64BIT_KERNEL
997 select CPU_SUPPORTS_HIGHMEM
999 Choose this option to build a kernel for release 1 or later of the
1000 MIPS64 architecture. Many modern embedded systems with a 64-bit
1001 MIPS processor are based on a MIPS64 processor. If you know the
1002 specific type of processor in your system, choose those that one
1003 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1004 Release 2 of the MIPS64 architecture is available since several
1005 years so chances are you even have a MIPS64 Release 2 processor
1006 in which case you should choose CPU_MIPS64_R2 instead for better
1009 config CPU_MIPS64_R2
1010 bool "MIPS64 Release 2"
1011 depends on SYS_HAS_CPU_MIPS64_R2
1013 select CPU_HAS_PREFETCH
1014 select CPU_SUPPORTS_32BIT_KERNEL
1015 select CPU_SUPPORTS_64BIT_KERNEL
1016 select CPU_SUPPORTS_HIGHMEM
1018 Choose this option to build a kernel for release 2 or later of the
1019 MIPS64 architecture. Many modern embedded systems with a 64-bit
1020 MIPS processor are based on a MIPS64 processor. If you know the
1021 specific type of processor in your system, choose those that one
1022 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1026 depends on SYS_HAS_CPU_R3000
1028 select CPU_SUPPORTS_32BIT_KERNEL
1029 select CPU_SUPPORTS_HIGHMEM
1031 Please make sure to pick the right CPU type. Linux/MIPS is not
1032 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1033 *not* work on R4000 machines and vice versa. However, since most
1034 of the supported machines have an R4000 (or similar) CPU, R4x00
1035 might be a safe bet. If the resulting kernel does not work,
1036 try to recompile with R3000.
1040 depends on SYS_HAS_CPU_TX39XX
1041 select CPU_SUPPORTS_32BIT_KERNEL
1045 depends on SYS_HAS_CPU_VR41XX
1046 select CPU_SUPPORTS_32BIT_KERNEL
1047 select CPU_SUPPORTS_64BIT_KERNEL
1049 The options selects support for the NEC VR4100 series of processors.
1050 Only choose this option if you have one of these processors as a
1051 kernel built with this option will not run on any other type of
1052 processor or vice versa.
1056 depends on SYS_HAS_CPU_R4300
1058 select CPU_SUPPORTS_32BIT_KERNEL
1059 select CPU_SUPPORTS_64BIT_KERNEL
1061 MIPS Technologies R4300-series processors.
1065 depends on SYS_HAS_CPU_R4X00
1067 select CPU_SUPPORTS_32BIT_KERNEL
1068 select CPU_SUPPORTS_64BIT_KERNEL
1070 MIPS Technologies R4000-series processors other than 4300, including
1071 the R4000, R4400, R4600, and 4700.
1075 depends on SYS_HAS_CPU_TX49XX
1077 select CPU_HAS_PREFETCH
1078 select CPU_SUPPORTS_32BIT_KERNEL
1079 select CPU_SUPPORTS_64BIT_KERNEL
1083 depends on SYS_HAS_CPU_R5000
1085 select CPU_SUPPORTS_32BIT_KERNEL
1086 select CPU_SUPPORTS_64BIT_KERNEL
1088 MIPS Technologies R5000-series processors other than the Nevada.
1092 depends on SYS_HAS_CPU_R5432
1094 select CPU_SUPPORTS_32BIT_KERNEL
1095 select CPU_SUPPORTS_64BIT_KERNEL
1099 depends on EXPERIMENTAL
1101 depends on SYS_HAS_CPU_R6000
1102 select CPU_SUPPORTS_32BIT_KERNEL
1104 MIPS Technologies R6000 and R6000A series processors. Note these
1105 processors are extremely rare and the support for them is incomplete.
1109 depends on SYS_HAS_CPU_NEVADA
1111 select CPU_SUPPORTS_32BIT_KERNEL
1112 select CPU_SUPPORTS_64BIT_KERNEL
1114 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1118 depends on EXPERIMENTAL
1119 depends on SYS_HAS_CPU_R8000
1121 select CPU_HAS_PREFETCH
1122 select CPU_SUPPORTS_64BIT_KERNEL
1124 MIPS Technologies R8000 processors. Note these processors are
1125 uncommon and the support for them is incomplete.
1129 depends on SYS_HAS_CPU_R10000
1131 select CPU_HAS_PREFETCH
1132 select CPU_SUPPORTS_32BIT_KERNEL
1133 select CPU_SUPPORTS_64BIT_KERNEL
1134 select CPU_SUPPORTS_HIGHMEM
1136 MIPS Technologies R10000-series processors.
1140 depends on SYS_HAS_CPU_RM7000
1142 select CPU_HAS_PREFETCH
1143 select CPU_SUPPORTS_32BIT_KERNEL
1144 select CPU_SUPPORTS_64BIT_KERNEL
1145 select CPU_SUPPORTS_HIGHMEM
1149 depends on SYS_HAS_CPU_RM9000
1151 select CPU_HAS_PREFETCH
1152 select CPU_SUPPORTS_32BIT_KERNEL
1153 select CPU_SUPPORTS_64BIT_KERNEL
1154 select CPU_SUPPORTS_HIGHMEM
1155 select WEAK_ORDERING
1159 depends on SYS_HAS_CPU_SB1
1161 select CPU_SUPPORTS_32BIT_KERNEL
1162 select CPU_SUPPORTS_64BIT_KERNEL
1163 select CPU_SUPPORTS_HIGHMEM
1164 select WEAK_ORDERING
1168 config SYS_HAS_CPU_LOONGSON2
1171 config SYS_HAS_CPU_MIPS32_R1
1174 config SYS_HAS_CPU_MIPS32_R2
1177 config SYS_HAS_CPU_MIPS64_R1
1180 config SYS_HAS_CPU_MIPS64_R2
1183 config SYS_HAS_CPU_R3000
1186 config SYS_HAS_CPU_TX39XX
1189 config SYS_HAS_CPU_VR41XX
1192 config SYS_HAS_CPU_R4300
1195 config SYS_HAS_CPU_R4X00
1198 config SYS_HAS_CPU_TX49XX
1201 config SYS_HAS_CPU_R5000
1204 config SYS_HAS_CPU_R5432
1207 config SYS_HAS_CPU_R6000
1210 config SYS_HAS_CPU_NEVADA
1213 config SYS_HAS_CPU_R8000
1216 config SYS_HAS_CPU_R10000
1219 config SYS_HAS_CPU_RM7000
1222 config SYS_HAS_CPU_RM9000
1225 config SYS_HAS_CPU_SB1
1229 # CPU may reorder R->R, R->W, W->R, W->W
1230 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1232 config WEAK_ORDERING
1236 # CPU may reorder reads and writes beyond LL/SC
1237 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1239 config WEAK_REORDERING_BEYOND_LLSC
1244 # These two indicate any level of the MIPS32 and MIPS64 architecture
1248 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1252 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1255 # These two indicate the revision of the architecture, either Release 1 or Release 2
1259 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1263 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1265 config SYS_SUPPORTS_32BIT_KERNEL
1267 config SYS_SUPPORTS_64BIT_KERNEL
1269 config CPU_SUPPORTS_32BIT_KERNEL
1271 config CPU_SUPPORTS_64BIT_KERNEL
1278 prompt "Kernel code model"
1280 You should only select this option if you have a workload that
1281 actually benefits from 64-bit processing or if your machine has
1282 large memory. You will only be presented a single option in this
1283 menu if your system does not support both 32-bit and 64-bit kernels.
1286 bool "32-bit kernel"
1287 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1290 Select this option if you want to build a 32-bit kernel.
1292 bool "64-bit kernel"
1293 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1295 Select this option if you want to build a 64-bit kernel.
1300 prompt "Kernel page size"
1301 default PAGE_SIZE_4KB
1303 config PAGE_SIZE_4KB
1306 This option select the standard 4kB Linux page size. On some
1307 R3000-family processors this is the only available page size. Using
1308 4kB page size will minimize memory consumption and is therefore
1309 recommended for low memory systems.
1311 config PAGE_SIZE_8KB
1313 depends on EXPERIMENTAL && CPU_R8000
1315 Using 8kB page size will result in higher performance kernel at
1316 the price of higher memory consumption. This option is available
1317 only on the R8000 processor. Not that at the time of this writing
1318 this option is still high experimental; there are also issues with
1319 compatibility of user applications.
1321 config PAGE_SIZE_16KB
1323 depends on !CPU_R3000 && !CPU_TX39XX
1325 Using 16kB page size will result in higher performance kernel at
1326 the price of higher memory consumption. This option is available on
1327 all non-R3000 family processors. Note that you will need a suitable
1328 Linux distribution to support this.
1330 config PAGE_SIZE_64KB
1332 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1334 Using 64kB page size will result in higher performance kernel at
1335 the price of higher memory consumption. This option is available on
1336 all non-R3000 family processor. Not that at the time of this
1337 writing this option is still high experimental.
1344 config IP22_CPU_SCACHE
1349 # Support for a MIPS32 / MIPS64 style S-caches
1351 config MIPS_CPU_SCACHE
1355 config R5000_CPU_SCACHE
1359 config RM7000_CPU_SCACHE
1363 config SIBYTE_DMA_PAGEOPS
1364 bool "Use DMA to clear/copy pages"
1367 Instead of using the CPU to zero and copy pages, use a Data Mover
1368 channel. These DMA channels are otherwise unused by the standard
1369 SiByte Linux port. Seems to give a small performance benefit.
1371 config CPU_HAS_PREFETCH
1375 prompt "MIPS MT options"
1377 config MIPS_MT_DISABLED
1378 bool "Disable multithreading support."
1380 Use this option if your workload can't take advantage of
1381 MIPS hardware multithreading support. On systems that don't have
1382 the option of an MT-enabled processor this option will be the only
1383 option in this menu.
1386 bool "Use 1 TC on each available VPE for SMP"
1387 depends on SYS_SUPPORTS_MULTITHREADING
1388 select CPU_MIPSR2_IRQ_VI
1389 select CPU_MIPSR2_IRQ_EI
1391 select NR_CPUS_DEFAULT_2
1393 select SYS_SUPPORTS_SCHED_SMT if SMP
1394 select SYS_SUPPORTS_SMP
1397 This is a kernel model which is also known a VSMP or lately
1398 has been marketesed into SMVP.
1401 bool "SMTC: Use all TCs on all VPEs for SMP"
1402 depends on CPU_MIPS32_R2
1403 #depends on CPU_MIPS64_R2 # once there is hardware ...
1404 depends on SYS_SUPPORTS_MULTITHREADING
1405 select GENERIC_CLOCKEVENTS_BROADCAST
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_INSTANT_REPLAY
1454 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1455 depends on MIPS_MT_SMTC && !PREEMPT
1458 SMTC pseudo-interrupts between TCs are deferred and queued
1459 if the target TC is interrupt-inhibited (IXMT). In the first
1460 SMTC prototypes, these queued IPIs were serviced on return
1461 to user mode, or on entry into the kernel idle loop. The
1462 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1463 processing, which adds runtime overhead (hence the option to turn
1464 it off), but ensures that IPIs are handled promptly even under
1465 heavy I/O interrupt load.
1467 config MIPS_MT_SMTC_IM_BACKSTOP
1468 bool "Use per-TC register bits as backstop for inhibited IM bits"
1469 depends on MIPS_MT_SMTC
1472 To support multiple TC microthreads acting as "CPUs" within
1473 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1474 during interrupt handling. To support legacy drivers and interrupt
1475 controller management code, SMTC has a "backstop" to track and
1476 if necessary restore the interrupt mask. This has some performance
1477 impact on interrupt service overhead. Disable it only if you know
1480 config MIPS_MT_SMTC_IRQAFF
1481 bool "Support IRQ affinity API"
1482 depends on MIPS_MT_SMTC
1485 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1486 for SMTC Linux kernel. Requires platform support, of which
1487 an example can be found in the MIPS kernel i8259 and Malta
1488 platform code. It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
1489 be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
1490 interrupt dispatch, and should be used only if you know what
1493 config MIPS_VPE_LOADER_TOM
1494 bool "Load VPE program into memory hidden from linux"
1495 depends on MIPS_VPE_LOADER
1498 The loader can use memory that is present but has been hidden from
1499 Linux using the kernel command line option "mem=xxMB". It's up to
1500 you to ensure the amount you put in the option and the space your
1501 program requires is less or equal to the amount physically present.
1503 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1504 config MIPS_VPE_APSP_API
1505 bool "Enable support for AP/SP API (RTLX)"
1506 depends on MIPS_VPE_LOADER
1509 config MIPS_APSP_KSPD
1511 depends on MIPS_VPE_APSP_API
1514 KSPD is a kernel daemon that accepts syscall requests from the SP
1515 side, actions them and returns the results. It also handles the
1516 "exit" syscall notifying other kernel modules the SP program is
1517 exiting. You probably want to say yes here.
1519 config SB1_PASS_1_WORKAROUNDS
1521 depends on CPU_SB1_PASS_1
1524 config SB1_PASS_2_WORKAROUNDS
1526 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1529 config SB1_PASS_2_1_WORKAROUNDS
1531 depends on CPU_SB1 && CPU_SB1_PASS_2
1534 config 64BIT_PHYS_ADDR
1540 config CPU_HAS_SMARTMIPS
1541 depends on SYS_SUPPORTS_SMARTMIPS
1542 bool "Support for the SmartMIPS ASE"
1544 SmartMIPS is a extension of the MIPS32 architecture aimed at
1545 increased security at both hardware and software level for
1546 smartcards. Enabling this option will allow proper use of the
1547 SmartMIPS instructions by Linux applications. However a kernel with
1548 this option will not work on a MIPS core without SmartMIPS core. If
1549 you don't know you probably don't have SmartMIPS and should say N
1556 # Vectored interrupt mode is an R2 feature
1558 config CPU_MIPSR2_IRQ_VI
1562 # Extended interrupt mode is an R2 feature
1564 config CPU_MIPSR2_IRQ_EI
1569 depends on !CPU_R3000
1572 config GENERIC_CLOCKEVENTS_BROADCAST
1578 config CPU_DADDI_WORKAROUNDS
1581 config CPU_R4000_WORKAROUNDS
1583 select CPU_R4400_WORKAROUNDS
1585 config CPU_R4400_WORKAROUNDS
1589 # Use the generic interrupt handling code in kernel/irq/:
1591 config GENERIC_HARDIRQS
1595 config GENERIC_IRQ_PROBE
1603 # - Highmem only makes sense for the 32-bit kernel.
1604 # - The current highmem code will only work properly on physically indexed
1605 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1606 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1607 # moment we protect the user and offer the highmem option only on machines
1608 # where it's known to be safe. This will not offer highmem on a few systems
1609 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1610 # indexed CPUs but we're playing safe.
1611 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1612 # know they might have memory configurations that could make use of highmem
1616 bool "High Memory Support"
1617 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1619 config CPU_SUPPORTS_HIGHMEM
1622 config SYS_SUPPORTS_HIGHMEM
1625 config SYS_SUPPORTS_SMARTMIPS
1628 config ARCH_FLATMEM_ENABLE
1632 config ARCH_DISCONTIGMEM_ENABLE
1634 default y if SGI_IP27
1636 Say Y to support efficient handling of discontiguous physical memory,
1637 for architectures which are either NUMA (Non-Uniform Memory Access)
1638 or have huge holes in the physical address space for other reasons.
1639 See <file:Documentation/vm/numa> for more.
1641 config ARCH_POPULATES_NODE_MAP
1644 config ARCH_SPARSEMEM_ENABLE
1646 select SPARSEMEM_STATIC
1650 depends on SYS_SUPPORTS_NUMA
1652 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1653 Access). This option improves performance on systems with more
1654 than two nodes; on two node systems it is generally better to
1655 leave it disabled; on single node systems disable this option
1658 config SYS_SUPPORTS_NUMA
1664 depends on NEED_MULTIPLE_NODES
1669 bool "Multi-Processing support"
1670 depends on SYS_SUPPORTS_SMP
1672 select USE_GENERIC_SMP_HELPERS
1674 This enables support for systems with more than one CPU. If you have
1675 a system with only one CPU, like most personal computers, say N. If
1676 you have a system with more than one CPU, say Y.
1678 If you say N here, the kernel will run on single and multiprocessor
1679 machines, but will use only one CPU of a multiprocessor machine. If
1680 you say Y here, the kernel will run on many, but not all,
1681 singleprocessor machines. On a singleprocessor machine, the kernel
1682 will run faster if you say N here.
1684 People using multiprocessor machines who say Y here should also say
1685 Y to "Enhanced Real Time Clock Support", below.
1687 See also the SMP-HOWTO available at
1688 <http://www.tldp.org/docs.html#howto>.
1690 If you don't know what to do here, say N.
1695 config SYS_SUPPORTS_SMP
1698 config NR_CPUS_DEFAULT_1
1701 config NR_CPUS_DEFAULT_2
1704 config NR_CPUS_DEFAULT_4
1707 config NR_CPUS_DEFAULT_8
1710 config NR_CPUS_DEFAULT_16
1713 config NR_CPUS_DEFAULT_32
1716 config NR_CPUS_DEFAULT_64
1720 int "Maximum number of CPUs (2-64)"
1721 range 1 64 if NR_CPUS_DEFAULT_1
1723 default "1" if NR_CPUS_DEFAULT_1
1724 default "2" if NR_CPUS_DEFAULT_2
1725 default "4" if NR_CPUS_DEFAULT_4
1726 default "8" if NR_CPUS_DEFAULT_8
1727 default "16" if NR_CPUS_DEFAULT_16
1728 default "32" if NR_CPUS_DEFAULT_32
1729 default "64" if NR_CPUS_DEFAULT_64
1731 This allows you to specify the maximum number of CPUs which this
1732 kernel will support. The maximum supported value is 32 for 32-bit
1733 kernel and 64 for 64-bit kernels; the minimum value which makes
1734 sense is 1 for Qemu (useful only for kernel debugging purposes)
1735 and 2 for all others.
1737 This is purely to save memory - each supported CPU adds
1738 approximately eight kilobytes to the kernel image. For best
1739 performance should round up your number of processors to the next
1743 bool "MIPS CMP framework support"
1746 select SYS_SUPPORTS_SCHED_SMT
1747 select WEAK_ORDERING
1750 This is a placeholder option for the GCMP work. It will need to
1751 be handled differently...
1753 source "kernel/time/Kconfig"
1756 # Timer Interrupt Frequency Configuration
1760 prompt "Timer frequency"
1763 Allows the configuration of the timer frequency.
1766 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1769 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1772 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1775 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1778 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1781 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1784 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1788 config SYS_SUPPORTS_48HZ
1791 config SYS_SUPPORTS_100HZ
1794 config SYS_SUPPORTS_128HZ
1797 config SYS_SUPPORTS_250HZ
1800 config SYS_SUPPORTS_256HZ
1803 config SYS_SUPPORTS_1000HZ
1806 config SYS_SUPPORTS_1024HZ
1809 config SYS_SUPPORTS_ARBIT_HZ
1811 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1812 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1813 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1814 !SYS_SUPPORTS_1024HZ
1819 default 100 if HZ_100
1820 default 128 if HZ_128
1821 default 250 if HZ_250
1822 default 256 if HZ_256
1823 default 1000 if HZ_1000
1824 default 1024 if HZ_1024
1826 source "kernel/Kconfig.preempt"
1828 config MIPS_INSANE_LARGE
1829 bool "Support for large 64-bit configurations"
1830 depends on CPU_R10000 && 64BIT
1832 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1833 previous 64-bit processors which only supported 40 bit / 1TB. If you
1834 need processes of more than 1TB virtual address space, say Y here.
1835 This will result in additional memory usage, so it is not
1836 recommended for normal users.
1839 bool "Kexec system call (EXPERIMENTAL)"
1840 depends on EXPERIMENTAL
1842 kexec is a system call that implements the ability to shutdown your
1843 current kernel, and to start another kernel. It is like a reboot
1844 but it is independent of the system firmware. And like a reboot
1845 you can start any kernel with it, not just Linux.
1847 The name comes from the similarity to the exec system call.
1849 It is an ongoing process to be certain the hardware in a machine
1850 is properly shutdown, so do not be surprised if this code does not
1851 initially work for you. It may help to enable device hotplugging
1852 support. As of this writing the exact hardware interface is
1853 strongly in flux, so no good recommendation can be made.
1856 bool "Enable seccomp to safely compute untrusted bytecode"
1860 This kernel feature is useful for number crunching applications
1861 that may need to compute untrusted bytecode during their
1862 execution. By using pipes or other transports made available to
1863 the process as file descriptors supporting the read/write
1864 syscalls, it's possible to isolate those applications in
1865 their own address space using seccomp. Once seccomp is
1866 enabled via /proc/<pid>/seccomp, it cannot be disabled
1867 and the task is only allowed to execute a few safe syscalls
1868 defined by each seccomp mode.
1870 If unsure, say Y. Only embedded should say N here.
1874 config RWSEM_GENERIC_SPINLOCK
1878 config LOCKDEP_SUPPORT
1882 config STACKTRACE_SUPPORT
1886 source "init/Kconfig"
1888 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1896 bool "Support for PCI controller"
1897 depends on HW_HAS_PCI
1900 Find out whether you have a PCI motherboard. PCI is the name of a
1901 bus system, i.e. the way the CPU talks to the other stuff inside
1902 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1908 source "drivers/pci/Kconfig"
1911 # ISA support is now enabled via select. Too many systems still have the one
1912 # or other ISA chip on the board that users don't know about so don't expect
1913 # users to choose the right thing ...
1920 depends on HW_HAS_EISA
1922 select GENERIC_ISA_DMA
1924 The Extended Industry Standard Architecture (EISA) bus was
1925 developed as an open alternative to the IBM MicroChannel bus.
1927 The EISA bus provided some of the features of the IBM MicroChannel
1928 bus while maintaining backward compatibility with cards made for
1929 the older ISA bus. The EISA bus saw limited use between 1988 and
1930 1995 when it was made obsolete by the PCI bus.
1932 Say Y here if you are building a kernel for an EISA-based machine.
1936 source "drivers/eisa/Kconfig"
1939 bool "TURBOchannel support"
1940 depends on MACH_DECSTATION
1942 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1943 processors. Documentation on writing device drivers for TurboChannel
1945 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1948 # bool "Access.Bus support"
1961 source "drivers/pcmcia/Kconfig"
1963 source "drivers/pci/hotplug/Kconfig"
1967 menu "Executable file formats"
1969 source "fs/Kconfig.binfmt"
1974 config MIPS32_COMPAT
1975 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1978 Select this option if you want Linux/MIPS 32-bit binary
1979 compatibility. Since all software available for Linux/MIPS is
1980 currently 32-bit you should say Y here.
1984 depends on MIPS32_COMPAT
1987 config SYSVIPC_COMPAT
1989 depends on COMPAT && SYSVIPC
1993 bool "Kernel support for o32 binaries"
1994 depends on MIPS32_COMPAT
1996 Select this option if you want to run o32 binaries. These are pure
1997 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1998 existing binaries are in this format.
2003 bool "Kernel support for n32 binaries"
2004 depends on MIPS32_COMPAT
2006 Select this option if you want to run n32 binaries. These are
2007 64-bit binaries using 32-bit quantities for addressing and certain
2008 data that would normally be 64-bit. They are used in special
2015 default y if MIPS32_O32 || MIPS32_N32
2019 menu "Power management options"
2021 config ARCH_SUSPEND_POSSIBLE
2025 source "kernel/power/Kconfig"
2029 source "net/Kconfig"
2031 source "drivers/Kconfig"
2035 source "arch/mips/Kconfig.debug"
2037 source "security/Kconfig"
2039 source "crypto/Kconfig"
2041 source "lib/Kconfig"