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
56 select SSB_PCICORE_HOSTMODE if PCI
58 select SYS_HAS_EARLY_PRINTK
61 Support for BCM47XX based boards
68 select DMA_NONCOHERENT
74 select PCI_GT64XXX_PCI0
75 select SYS_HAS_CPU_NEVADA
76 select SYS_HAS_EARLY_PRINTK
77 select SYS_SUPPORTS_32BIT_KERNEL
78 select SYS_SUPPORTS_64BIT_KERNEL
79 select SYS_SUPPORTS_LITTLE_ENDIAN
80 select GENERIC_HARDIRQS_NO__DO_IRQ
82 config MACH_DECSTATION
89 select CPU_DADDI_WORKAROUNDS if 64BIT
90 select CPU_R4000_WORKAROUNDS if 64BIT
91 select CPU_R4400_WORKAROUNDS if 64BIT
92 select DMA_NONCOHERENT
95 select SYS_HAS_CPU_R3000
96 select SYS_HAS_CPU_R4X00
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
99 select SYS_SUPPORTS_LITTLE_ENDIAN
100 select SYS_SUPPORTS_128HZ
101 select SYS_SUPPORTS_256HZ
102 select SYS_SUPPORTS_1024HZ
104 This enables support for DEC's MIPS based workstations. For details
105 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
106 DECstation porting pages on <http://decstation.unix-ag.org/>.
108 If you have one of the following DECstation Models you definitely
109 want to choose R4xx0 for the CPU Type:
116 otherwise choose R3000.
119 bool "Jazz family of machines"
122 select ARCH_MAY_HAVE_PC_FDC
125 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
126 select GENERIC_ISA_DMA
131 select SYS_HAS_CPU_R4X00
132 select SYS_SUPPORTS_32BIT_KERNEL
133 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
134 select SYS_SUPPORTS_100HZ
135 select GENERIC_HARDIRQS_NO__DO_IRQ
137 This a family of machines based on the MIPS R4030 chipset which was
138 used by several vendors to build RISC/os and Windows NT workstations.
139 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
140 Olivetti M700-10 workstations.
143 bool "LASAT Networks platforms"
146 select DMA_NONCOHERENT
147 select SYS_HAS_EARLY_PRINTK
150 select PCI_GT64XXX_PCI0
152 select R5000_CPU_SCACHE
153 select SYS_HAS_CPU_R5000
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
156 select SYS_SUPPORTS_LITTLE_ENDIAN
157 select GENERIC_HARDIRQS_NO__DO_IRQ
160 bool "Lemote Fulong mini-PC"
161 select ARCH_SPARSEMEM_ENABLE
164 select SYS_HAS_CPU_LOONGSON2
165 select DMA_NONCOHERENT
168 select HAVE_STD_PC_SERIAL_PORT
173 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_SUPPORTS_64BIT_KERNEL
175 select SYS_SUPPORTS_LITTLE_ENDIAN
176 select SYS_SUPPORTS_HIGHMEM
177 select SYS_HAS_EARLY_PRINTK
178 select GENERIC_HARDIRQS_NO__DO_IRQ
179 select GENERIC_ISA_DMA_SUPPORT_BROKEN
182 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
186 bool "MIPS Malta board"
187 select ARCH_MAY_HAVE_PC_FDC
192 select DMA_NONCOHERENT
193 select GENERIC_ISA_DMA
199 select MIPS_BOARDS_GEN
201 select MIPS_CPU_SCACHE
202 select PCI_GT64XXX_PCI0
205 select SYS_HAS_CPU_MIPS32_R1
206 select SYS_HAS_CPU_MIPS32_R2
207 select SYS_HAS_CPU_MIPS64_R1
208 select SYS_HAS_CPU_NEVADA
209 select SYS_HAS_CPU_RM7000
210 select SYS_HAS_EARLY_PRINTK
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_64BIT_KERNEL
213 select SYS_SUPPORTS_BIG_ENDIAN
214 select SYS_SUPPORTS_LITTLE_ENDIAN
215 select SYS_SUPPORTS_MIPS_CMP if BROKEN # because SYNC_R4K is broken
216 select SYS_SUPPORTS_MULTITHREADING
217 select SYS_SUPPORTS_SMARTMIPS
219 This enables support for the MIPS Technologies Malta evaluation
223 bool 'MIPS simulator (MIPSsim)'
226 select DMA_NONCOHERENT
227 select SYS_HAS_EARLY_PRINTK
230 select SYS_HAS_CPU_MIPS32_R1
231 select SYS_HAS_CPU_MIPS32_R2
232 select SYS_HAS_EARLY_PRINTK
233 select SYS_SUPPORTS_32BIT_KERNEL
234 select SYS_SUPPORTS_BIG_ENDIAN
235 select SYS_SUPPORTS_MULTITHREADING
236 select SYS_SUPPORTS_LITTLE_ENDIAN
238 This option enables support for MIPS Technologies MIPSsim software
242 bool "NEC EMMA2RH Mark-eins"
245 select DMA_NONCOHERENT
249 select SYS_SUPPORTS_32BIT_KERNEL
250 select SYS_SUPPORTS_BIG_ENDIAN
251 select SYS_SUPPORTS_LITTLE_ENDIAN
252 select SYS_HAS_CPU_R5000
254 This enables support for the R5432-based NEC Mark-eins
255 boards with R5500 CPU.
258 bool "NEC VR4100 series based machines"
261 select SYS_HAS_CPU_VR41XX
262 select GENERIC_HARDIRQS_NO__DO_IRQ
265 bool "NXP PNX8550 based JBS board"
267 select SYS_SUPPORTS_LITTLE_ENDIAN
269 config PNX8550_STB810
270 bool "NXP PNX8550 based STB810 board"
272 select SYS_SUPPORTS_LITTLE_ENDIAN
275 bool "PMC-Sierra MSP chipsets"
276 depends on EXPERIMENTAL
277 select DMA_NONCOHERENT
279 select NO_EXCEPT_FILL
281 select SYS_HAS_CPU_MIPS32_R1
282 select SYS_HAS_CPU_MIPS32_R2
283 select SYS_SUPPORTS_32BIT_KERNEL
284 select SYS_SUPPORTS_BIG_ENDIAN
287 select SERIAL_8250_CONSOLE
289 This adds support for the PMC-Sierra family of Multi-Service
290 Processor System-On-A-Chips. These parts include a number
291 of integrated peripherals, interfaces and DSPs in addition to
292 a variety of MIPS cores.
295 bool "PMC-Sierra Yosemite eval board"
304 select SYS_HAS_CPU_RM9000
305 select SYS_HAS_EARLY_PRINTK
306 select SYS_SUPPORTS_32BIT_KERNEL
307 select SYS_SUPPORTS_64BIT_KERNEL
308 select SYS_SUPPORTS_BIG_ENDIAN
309 select SYS_SUPPORTS_HIGHMEM
310 select SYS_SUPPORTS_SMP
312 Yosemite is an evaluation board for the RM9000x2 processor
313 manufactured by PMC-Sierra.
316 bool "SGI IP22 (Indy/Indigo2)"
322 select DEFAULT_SGI_PARTITION
323 select DMA_NONCOHERENT
327 select IP22_CPU_SCACHE
329 select GENERIC_ISA_DMA_SUPPORT_BROKEN
330 select SGI_HAS_DS1286
332 select SGI_HAS_INDYDOG
338 select SYS_HAS_CPU_R4X00
339 select SYS_HAS_CPU_R5000
340 select SYS_HAS_EARLY_PRINTK
341 select SYS_SUPPORTS_32BIT_KERNEL
342 select SYS_SUPPORTS_64BIT_KERNEL
343 select SYS_SUPPORTS_BIG_ENDIAN
345 This are the SGI Indy, Challenge S and Indigo2, as well as certain
346 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
347 that runs on these, say Y here.
350 bool "SGI IP27 (Origin200/2000)"
354 select DEFAULT_SGI_PARTITION
356 select SYS_HAS_EARLY_PRINTK
358 select NR_CPUS_DEFAULT_64
359 select SYS_HAS_CPU_R10000
360 select SYS_SUPPORTS_64BIT_KERNEL
361 select SYS_SUPPORTS_BIG_ENDIAN
362 select SYS_SUPPORTS_NUMA
363 select SYS_SUPPORTS_SMP
364 select GENERIC_HARDIRQS_NO__DO_IRQ
366 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
367 workstations. To compile a Linux kernel that runs on these, say Y
371 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
372 depends on EXPERIMENTAL
378 select DEFAULT_SGI_PARTITION
379 select DMA_NONCOHERENT
380 select GENERIC_ISA_DMA_SUPPORT_BROKEN
385 select SGI_HAS_DS1286
387 select SGI_HAS_INDYDOG
393 select SYS_HAS_CPU_R10000
394 select SYS_HAS_EARLY_PRINTK
395 select SYS_SUPPORTS_64BIT_KERNEL
396 select SYS_SUPPORTS_BIG_ENDIAN
398 This is the SGI Indigo2 with R10000 processor. To compile a Linux
399 kernel that runs on these, say Y here.
408 select DMA_NONCOHERENT
411 select R5000_CPU_SCACHE
412 select RM7000_CPU_SCACHE
413 select SYS_HAS_CPU_R5000
414 select SYS_HAS_CPU_R10000 if BROKEN
415 select SYS_HAS_CPU_RM7000
416 select SYS_HAS_CPU_NEVADA
417 select SYS_SUPPORTS_64BIT_KERNEL
418 select SYS_SUPPORTS_BIG_ENDIAN
420 If you want this kernel to run on SGI O2 workstation, say Y here.
423 bool "Sibyte BCM91120C-CRhine"
424 depends on EXPERIMENTAL
427 select SIBYTE_BCM1120
429 select SYS_HAS_CPU_SB1
430 select SYS_SUPPORTS_BIG_ENDIAN
431 select SYS_SUPPORTS_LITTLE_ENDIAN
434 bool "Sibyte BCM91120x-Carmel"
435 depends on EXPERIMENTAL
438 select SIBYTE_BCM1120
440 select SYS_HAS_CPU_SB1
441 select SYS_SUPPORTS_BIG_ENDIAN
442 select SYS_SUPPORTS_LITTLE_ENDIAN
445 bool "Sibyte BCM91125C-CRhone"
446 depends on EXPERIMENTAL
449 select SIBYTE_BCM1125
451 select SYS_HAS_CPU_SB1
452 select SYS_SUPPORTS_BIG_ENDIAN
453 select SYS_SUPPORTS_HIGHMEM
454 select SYS_SUPPORTS_LITTLE_ENDIAN
457 bool "Sibyte BCM91125E-Rhone"
458 depends on EXPERIMENTAL
461 select SIBYTE_BCM1125H
463 select SYS_HAS_CPU_SB1
464 select SYS_SUPPORTS_BIG_ENDIAN
465 select SYS_SUPPORTS_LITTLE_ENDIAN
468 bool "Sibyte BCM91250A-SWARM"
471 select NR_CPUS_DEFAULT_2
474 select SYS_HAS_CPU_SB1
475 select SYS_SUPPORTS_BIG_ENDIAN
476 select SYS_SUPPORTS_HIGHMEM
477 select SYS_SUPPORTS_LITTLE_ENDIAN
478 select ZONE_DMA32 if 64BIT
480 config SIBYTE_LITTLESUR
481 bool "Sibyte BCM91250C2-LittleSur"
482 depends on EXPERIMENTAL
485 select NR_CPUS_DEFAULT_2
488 select SYS_HAS_CPU_SB1
489 select SYS_SUPPORTS_BIG_ENDIAN
490 select SYS_SUPPORTS_HIGHMEM
491 select SYS_SUPPORTS_LITTLE_ENDIAN
493 config SIBYTE_SENTOSA
494 bool "Sibyte BCM91250E-Sentosa"
495 depends on EXPERIMENTAL
498 select NR_CPUS_DEFAULT_2
501 select SYS_HAS_CPU_SB1
502 select SYS_SUPPORTS_BIG_ENDIAN
503 select SYS_SUPPORTS_LITTLE_ENDIAN
506 bool "Sibyte BCM91480B-BigSur"
509 select NR_CPUS_DEFAULT_4
510 select SIBYTE_BCM1x80
512 select SYS_HAS_CPU_SB1
513 select SYS_SUPPORTS_BIG_ENDIAN
514 select SYS_SUPPORTS_HIGHMEM
515 select SYS_SUPPORTS_LITTLE_ENDIAN
516 select ZONE_DMA32 if 64BIT
519 bool "SNI RM200/300/400"
520 select ARC if CPU_LITTLE_ENDIAN
521 select ARC32 if CPU_LITTLE_ENDIAN
522 select SNIPROM if CPU_BIG_ENDIAN
523 select ARCH_MAY_HAVE_PC_FDC
527 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
528 select DMA_NONCOHERENT
529 select GENERIC_ISA_DMA
536 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
537 select SYS_HAS_CPU_R4X00
538 select SYS_HAS_CPU_R5000
539 select SYS_HAS_CPU_R10000
540 select R5000_CPU_SCACHE
541 select SYS_HAS_EARLY_PRINTK
542 select SYS_SUPPORTS_32BIT_KERNEL
543 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
544 select SYS_SUPPORTS_BIG_ENDIAN
545 select SYS_SUPPORTS_HIGHMEM
546 select SYS_SUPPORTS_LITTLE_ENDIAN
548 The SNI RM200/300/400 are MIPS-based machines manufactured by
549 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
550 Technology and now in turn merged with Fujitsu. Say Y here to
551 support this machine type.
554 bool "Toshiba TX39 series based machines"
557 bool "Toshiba TX49 series based machines"
559 config MIKROTIK_RB532
560 bool "Mikrotik RB532 boards"
563 select DMA_NONCOHERENT
564 select GENERIC_HARDIRQS_NO__DO_IRQ
567 select SYS_HAS_CPU_MIPS32_R1
568 select SYS_SUPPORTS_32BIT_KERNEL
569 select SYS_SUPPORTS_LITTLE_ENDIAN
572 select ARCH_REQUIRE_GPIOLIB
574 Support the Mikrotik(tm) RouterBoard 532 series,
575 based on the IDT RC32434 SoC.
578 bool "Wind River PPMC board"
583 select DMA_NONCOHERENT
585 select PCI_GT64XXX_PCI0
587 select SYS_HAS_CPU_MIPS32_R1
588 select SYS_HAS_CPU_MIPS32_R2
589 select SYS_HAS_CPU_MIPS64_R1
590 select SYS_HAS_CPU_NEVADA
591 select SYS_HAS_CPU_RM7000
592 select SYS_SUPPORTS_32BIT_KERNEL
593 select SYS_SUPPORTS_64BIT_KERNEL
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_LITTLE_ENDIAN
597 This enables support for the Wind River MIPS32 4KC PPMC evaluation
598 board, which is based on GT64120 bridge chip.
602 source "arch/mips/alchemy/Kconfig"
603 source "arch/mips/basler/excite/Kconfig"
604 source "arch/mips/jazz/Kconfig"
605 source "arch/mips/lasat/Kconfig"
606 source "arch/mips/pmc-sierra/Kconfig"
607 source "arch/mips/sgi-ip27/Kconfig"
608 source "arch/mips/sibyte/Kconfig"
609 source "arch/mips/txx9/Kconfig"
610 source "arch/mips/vr41xx/Kconfig"
614 config RWSEM_GENERIC_SPINLOCK
618 config RWSEM_XCHGADD_ALGORITHM
621 config ARCH_HAS_ILOG2_U32
625 config ARCH_HAS_ILOG2_U64
629 config ARCH_SUPPORTS_OPROFILE
631 default y if !MIPS_MT_SMTC
633 config GENERIC_FIND_NEXT_BIT
637 config GENERIC_HWEIGHT
641 config GENERIC_CALIBRATE_DELAY
645 config GENERIC_CLOCKEVENTS
653 config GENERIC_CMOS_UPDATE
657 config SCHED_NO_NO_OMIT_FRAME_POINTER
661 config GENERIC_HARDIRQS_NO__DO_IRQ
666 # Select some configuration options automatically based on user selections.
671 config ARCH_MAY_HAVE_PC_FDC
709 select ARCH_REQUIRE_GPIOLIB
721 config DMA_NONCOHERENT
723 select DMA_NEED_PCI_MAP_STATE
725 config DMA_NEED_PCI_MAP_STATE
729 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
730 depends on SYS_HAS_EARLY_PRINTK
733 This option enables special console drivers which allow the kernel
734 to print messages very early in the bootup process.
736 This is useful for kernel debugging when your machine crashes very
737 early before the console code is initialized. For normal operation,
738 it is not recommended because it looks ugly on some machines and
739 doesn't cooperate with an X server. You should normally say N here,
740 unless you want to debug such a crash.
742 config SYS_HAS_EARLY_PRINTK
761 config MIPS_DISABLE_OBSOLETE_IDE
770 config GENERIC_ISA_DMA
772 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
774 config GENERIC_ISA_DMA_SUPPORT_BROKEN
776 select GENERIC_ISA_DMA
782 # Endianess selection. Sufficiently obscure so many users don't know what to
783 # answer,so we try hard to limit the available choices. Also the use of a
784 # choice statement should be more obvious to the user.
787 prompt "Endianess selection"
789 Some MIPS machines can be configured for either little or big endian
790 byte order. These modes require different kernels and a different
791 Linux distribution. In general there is one preferred byteorder for a
792 particular system but some systems are just as commonly used in the
793 one or the other endianness.
795 config CPU_BIG_ENDIAN
797 depends on SYS_SUPPORTS_BIG_ENDIAN
799 config CPU_LITTLE_ENDIAN
801 depends on SYS_SUPPORTS_LITTLE_ENDIAN
806 config SYS_SUPPORTS_APM_EMULATION
809 config SYS_SUPPORTS_BIG_ENDIAN
812 config SYS_SUPPORTS_LITTLE_ENDIAN
839 config MIPS_BOARDS_GEN
842 config PCI_GT64XXX_PCI0
845 config NO_EXCEPT_FILL
858 select DMA_NONCOHERENT
860 select SYS_HAS_CPU_MIPS32_R1
861 select SYS_HAS_EARLY_PRINTK
862 select SYS_SUPPORTS_32BIT_KERNEL
863 select GENERIC_HARDIRQS_NO__DO_IRQ
877 config SGI_HAS_DS1286
880 config SGI_HAS_INDYDOG
898 config DEFAULT_SGI_PARTITION
910 config MIPS_L1_CACHE_SHIFT
912 default "4" if MACH_DECSTATION || MIKROTIK_RB532
913 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
914 default "4" if PMC_MSP4200_EVAL
917 config HAVE_STD_PC_SERIAL_PORT
921 bool "ARC console support"
922 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
926 depends on MACH_JAZZ || SNI_RM || SGI_IP32
931 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
948 depends on SYS_HAS_CPU_LOONGSON2
949 select CPU_SUPPORTS_32BIT_KERNEL
950 select CPU_SUPPORTS_64BIT_KERNEL
951 select CPU_SUPPORTS_HIGHMEM
953 The Loongson 2E processor implements the MIPS III instruction set
954 with many extensions.
957 bool "MIPS32 Release 1"
958 depends on SYS_HAS_CPU_MIPS32_R1
960 select CPU_HAS_PREFETCH
961 select CPU_SUPPORTS_32BIT_KERNEL
962 select CPU_SUPPORTS_HIGHMEM
964 Choose this option to build a kernel for release 1 or later of the
965 MIPS32 architecture. Most modern embedded systems with a 32-bit
966 MIPS processor are based on a MIPS32 processor. If you know the
967 specific type of processor in your system, choose those that one
968 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
969 Release 2 of the MIPS32 architecture is available since several
970 years so chances are you even have a MIPS32 Release 2 processor
971 in which case you should choose CPU_MIPS32_R2 instead for better
975 bool "MIPS32 Release 2"
976 depends on SYS_HAS_CPU_MIPS32_R2
978 select CPU_HAS_PREFETCH
979 select CPU_SUPPORTS_32BIT_KERNEL
980 select CPU_SUPPORTS_HIGHMEM
982 Choose this option to build a kernel for release 2 or later of the
983 MIPS32 architecture. Most modern embedded systems with a 32-bit
984 MIPS processor are based on a MIPS32 processor. If you know the
985 specific type of processor in your system, choose those that one
986 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
989 bool "MIPS64 Release 1"
990 depends on SYS_HAS_CPU_MIPS64_R1
992 select CPU_HAS_PREFETCH
993 select CPU_SUPPORTS_32BIT_KERNEL
994 select CPU_SUPPORTS_64BIT_KERNEL
995 select CPU_SUPPORTS_HIGHMEM
997 Choose this option to build a kernel for release 1 or later of the
998 MIPS64 architecture. Many modern embedded systems with a 64-bit
999 MIPS processor are based on a MIPS64 processor. If you know the
1000 specific type of processor in your system, choose those that one
1001 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1002 Release 2 of the MIPS64 architecture is available since several
1003 years so chances are you even have a MIPS64 Release 2 processor
1004 in which case you should choose CPU_MIPS64_R2 instead for better
1007 config CPU_MIPS64_R2
1008 bool "MIPS64 Release 2"
1009 depends on SYS_HAS_CPU_MIPS64_R2
1011 select CPU_HAS_PREFETCH
1012 select CPU_SUPPORTS_32BIT_KERNEL
1013 select CPU_SUPPORTS_64BIT_KERNEL
1014 select CPU_SUPPORTS_HIGHMEM
1016 Choose this option to build a kernel for release 2 or later of the
1017 MIPS64 architecture. Many modern embedded systems with a 64-bit
1018 MIPS processor are based on a MIPS64 processor. If you know the
1019 specific type of processor in your system, choose those that one
1020 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1024 depends on SYS_HAS_CPU_R3000
1026 select CPU_SUPPORTS_32BIT_KERNEL
1027 select CPU_SUPPORTS_HIGHMEM
1029 Please make sure to pick the right CPU type. Linux/MIPS is not
1030 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1031 *not* work on R4000 machines and vice versa. However, since most
1032 of the supported machines have an R4000 (or similar) CPU, R4x00
1033 might be a safe bet. If the resulting kernel does not work,
1034 try to recompile with R3000.
1038 depends on SYS_HAS_CPU_TX39XX
1039 select CPU_SUPPORTS_32BIT_KERNEL
1043 depends on SYS_HAS_CPU_VR41XX
1044 select CPU_SUPPORTS_32BIT_KERNEL
1045 select CPU_SUPPORTS_64BIT_KERNEL
1047 The options selects support for the NEC VR4100 series of processors.
1048 Only choose this option if you have one of these processors as a
1049 kernel built with this option will not run on any other type of
1050 processor or vice versa.
1054 depends on SYS_HAS_CPU_R4300
1056 select CPU_SUPPORTS_32BIT_KERNEL
1057 select CPU_SUPPORTS_64BIT_KERNEL
1059 MIPS Technologies R4300-series processors.
1063 depends on SYS_HAS_CPU_R4X00
1065 select CPU_SUPPORTS_32BIT_KERNEL
1066 select CPU_SUPPORTS_64BIT_KERNEL
1068 MIPS Technologies R4000-series processors other than 4300, including
1069 the R4000, R4400, R4600, and 4700.
1073 depends on SYS_HAS_CPU_TX49XX
1075 select CPU_HAS_PREFETCH
1076 select CPU_SUPPORTS_32BIT_KERNEL
1077 select CPU_SUPPORTS_64BIT_KERNEL
1081 depends on SYS_HAS_CPU_R5000
1083 select CPU_SUPPORTS_32BIT_KERNEL
1084 select CPU_SUPPORTS_64BIT_KERNEL
1086 MIPS Technologies R5000-series processors other than the Nevada.
1090 depends on SYS_HAS_CPU_R5432
1092 select CPU_SUPPORTS_32BIT_KERNEL
1093 select CPU_SUPPORTS_64BIT_KERNEL
1097 depends on EXPERIMENTAL
1099 depends on SYS_HAS_CPU_R6000
1100 select CPU_SUPPORTS_32BIT_KERNEL
1102 MIPS Technologies R6000 and R6000A series processors. Note these
1103 processors are extremely rare and the support for them is incomplete.
1107 depends on SYS_HAS_CPU_NEVADA
1109 select CPU_SUPPORTS_32BIT_KERNEL
1110 select CPU_SUPPORTS_64BIT_KERNEL
1112 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1116 depends on EXPERIMENTAL
1117 depends on SYS_HAS_CPU_R8000
1119 select CPU_HAS_PREFETCH
1120 select CPU_SUPPORTS_64BIT_KERNEL
1122 MIPS Technologies R8000 processors. Note these processors are
1123 uncommon and the support for them is incomplete.
1127 depends on SYS_HAS_CPU_R10000
1129 select CPU_HAS_PREFETCH
1130 select CPU_SUPPORTS_32BIT_KERNEL
1131 select CPU_SUPPORTS_64BIT_KERNEL
1132 select CPU_SUPPORTS_HIGHMEM
1134 MIPS Technologies R10000-series processors.
1138 depends on SYS_HAS_CPU_RM7000
1140 select CPU_HAS_PREFETCH
1141 select CPU_SUPPORTS_32BIT_KERNEL
1142 select CPU_SUPPORTS_64BIT_KERNEL
1143 select CPU_SUPPORTS_HIGHMEM
1147 depends on SYS_HAS_CPU_RM9000
1149 select CPU_HAS_PREFETCH
1150 select CPU_SUPPORTS_32BIT_KERNEL
1151 select CPU_SUPPORTS_64BIT_KERNEL
1152 select CPU_SUPPORTS_HIGHMEM
1153 select WEAK_ORDERING
1157 depends on SYS_HAS_CPU_SB1
1159 select CPU_SUPPORTS_32BIT_KERNEL
1160 select CPU_SUPPORTS_64BIT_KERNEL
1161 select CPU_SUPPORTS_HIGHMEM
1162 select WEAK_ORDERING
1166 config SYS_HAS_CPU_LOONGSON2
1169 config SYS_HAS_CPU_MIPS32_R1
1172 config SYS_HAS_CPU_MIPS32_R2
1175 config SYS_HAS_CPU_MIPS64_R1
1178 config SYS_HAS_CPU_MIPS64_R2
1181 config SYS_HAS_CPU_R3000
1184 config SYS_HAS_CPU_TX39XX
1187 config SYS_HAS_CPU_VR41XX
1190 config SYS_HAS_CPU_R4300
1193 config SYS_HAS_CPU_R4X00
1196 config SYS_HAS_CPU_TX49XX
1199 config SYS_HAS_CPU_R5000
1202 config SYS_HAS_CPU_R5432
1205 config SYS_HAS_CPU_R6000
1208 config SYS_HAS_CPU_NEVADA
1211 config SYS_HAS_CPU_R8000
1214 config SYS_HAS_CPU_R10000
1217 config SYS_HAS_CPU_RM7000
1220 config SYS_HAS_CPU_RM9000
1223 config SYS_HAS_CPU_SB1
1227 # CPU may reorder R->R, R->W, W->R, W->W
1228 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1230 config WEAK_ORDERING
1234 # CPU may reorder reads and writes beyond LL/SC
1235 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1237 config WEAK_REORDERING_BEYOND_LLSC
1242 # These two indicate any level of the MIPS32 and MIPS64 architecture
1246 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1250 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1253 # These two indicate the revision of the architecture, either Release 1 or Release 2
1257 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1261 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1263 config SYS_SUPPORTS_32BIT_KERNEL
1265 config SYS_SUPPORTS_64BIT_KERNEL
1267 config CPU_SUPPORTS_32BIT_KERNEL
1269 config CPU_SUPPORTS_64BIT_KERNEL
1273 # Set to y for ptrace access to watch registers.
1275 config HARDWARE_WATCHPOINTS
1277 default y if CPU_MIPS32 || CPU_MIPS64
1283 prompt "Kernel code model"
1285 You should only select this option if you have a workload that
1286 actually benefits from 64-bit processing or if your machine has
1287 large memory. You will only be presented a single option in this
1288 menu if your system does not support both 32-bit and 64-bit kernels.
1291 bool "32-bit kernel"
1292 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1295 Select this option if you want to build a 32-bit kernel.
1297 bool "64-bit kernel"
1298 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1300 Select this option if you want to build a 64-bit kernel.
1305 prompt "Kernel page size"
1306 default PAGE_SIZE_4KB
1308 config PAGE_SIZE_4KB
1311 This option select the standard 4kB Linux page size. On some
1312 R3000-family processors this is the only available page size. Using
1313 4kB page size will minimize memory consumption and is therefore
1314 recommended for low memory systems.
1316 config PAGE_SIZE_8KB
1318 depends on EXPERIMENTAL && CPU_R8000
1320 Using 8kB page size will result in higher performance kernel at
1321 the price of higher memory consumption. This option is available
1322 only on the R8000 processor. Not that at the time of this writing
1323 this option is still high experimental; there are also issues with
1324 compatibility of user applications.
1326 config PAGE_SIZE_16KB
1328 depends on !CPU_R3000 && !CPU_TX39XX
1330 Using 16kB page size will result in higher performance kernel at
1331 the price of higher memory consumption. This option is available on
1332 all non-R3000 family processors. Note that you will need a suitable
1333 Linux distribution to support this.
1335 config PAGE_SIZE_64KB
1337 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1339 Using 64kB page size will result in higher performance kernel at
1340 the price of higher memory consumption. This option is available on
1341 all non-R3000 family processor. Not that at the time of this
1342 writing this option is still high experimental.
1349 config IP22_CPU_SCACHE
1354 # Support for a MIPS32 / MIPS64 style S-caches
1356 config MIPS_CPU_SCACHE
1360 config R5000_CPU_SCACHE
1364 config RM7000_CPU_SCACHE
1368 config SIBYTE_DMA_PAGEOPS
1369 bool "Use DMA to clear/copy pages"
1372 Instead of using the CPU to zero and copy pages, use a Data Mover
1373 channel. These DMA channels are otherwise unused by the standard
1374 SiByte Linux port. Seems to give a small performance benefit.
1376 config CPU_HAS_PREFETCH
1380 prompt "MIPS MT options"
1382 config MIPS_MT_DISABLED
1383 bool "Disable multithreading support."
1385 Use this option if your workload can't take advantage of
1386 MIPS hardware multithreading support. On systems that don't have
1387 the option of an MT-enabled processor this option will be the only
1388 option in this menu.
1391 bool "Use 1 TC on each available VPE for SMP"
1392 depends on SYS_SUPPORTS_MULTITHREADING
1393 select CPU_MIPSR2_IRQ_VI
1394 select CPU_MIPSR2_IRQ_EI
1396 select NR_CPUS_DEFAULT_2
1398 select SYS_SUPPORTS_SCHED_SMT if SMP
1399 select SYS_SUPPORTS_SMP
1402 This is a kernel model which is also known a VSMP or lately
1403 has been marketesed into SMVP.
1406 bool "SMTC: Use all TCs on all VPEs for SMP"
1407 depends on CPU_MIPS32_R2
1408 #depends on CPU_MIPS64_R2 # once there is hardware ...
1409 depends on SYS_SUPPORTS_MULTITHREADING
1410 select CPU_MIPSR2_IRQ_VI
1411 select CPU_MIPSR2_IRQ_EI
1413 select NR_CPUS_DEFAULT_8
1415 select SYS_SUPPORTS_SMP
1418 This is a kernel model which is known a SMTC or lately has been
1419 marketesed into SMVP.
1427 bool "SMT (multithreading) scheduler support"
1428 depends on SYS_SUPPORTS_SCHED_SMT
1431 SMT scheduler support improves the CPU scheduler's decision making
1432 when dealing with MIPS MT enabled cores at a cost of slightly
1433 increased overhead in some places. If unsure say N here.
1435 config SYS_SUPPORTS_SCHED_SMT
1439 config SYS_SUPPORTS_MULTITHREADING
1442 config MIPS_MT_FPAFF
1443 bool "Dynamic FPU affinity for FP-intensive threads"
1445 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1447 config MIPS_VPE_LOADER
1448 bool "VPE loader support."
1449 depends on SYS_SUPPORTS_MULTITHREADING
1450 select CPU_MIPSR2_IRQ_VI
1451 select CPU_MIPSR2_IRQ_EI
1454 Includes a loader for loading an elf relocatable object
1455 onto another VPE and running it.
1457 config MIPS_MT_SMTC_IM_BACKSTOP
1458 bool "Use per-TC register bits as backstop for inhibited IM bits"
1459 depends on MIPS_MT_SMTC
1462 To support multiple TC microthreads acting as "CPUs" within
1463 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1464 during interrupt handling. To support legacy drivers and interrupt
1465 controller management code, SMTC has a "backstop" to track and
1466 if necessary restore the interrupt mask. This has some performance
1467 impact on interrupt service overhead.
1469 config MIPS_MT_SMTC_IRQAFF
1470 bool "Support IRQ affinity API"
1471 depends on MIPS_MT_SMTC
1474 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1475 for SMTC Linux kernel. Requires platform support, of which
1476 an example can be found in the MIPS kernel i8259 and Malta
1477 platform code. Adds some overhead to interrupt dispatch, and
1478 should be used only if you know what you are doing.
1480 config MIPS_VPE_LOADER_TOM
1481 bool "Load VPE program into memory hidden from linux"
1482 depends on MIPS_VPE_LOADER
1485 The loader can use memory that is present but has been hidden from
1486 Linux using the kernel command line option "mem=xxMB". It's up to
1487 you to ensure the amount you put in the option and the space your
1488 program requires is less or equal to the amount physically present.
1490 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1491 config MIPS_VPE_APSP_API
1492 bool "Enable support for AP/SP API (RTLX)"
1493 depends on MIPS_VPE_LOADER
1496 config MIPS_APSP_KSPD
1498 depends on MIPS_VPE_APSP_API
1501 KSPD is a kernel daemon that accepts syscall requests from the SP
1502 side, actions them and returns the results. It also handles the
1503 "exit" syscall notifying other kernel modules the SP program is
1504 exiting. You probably want to say yes here.
1507 bool "MIPS CMP framework support"
1508 depends on SYS_SUPPORTS_MIPS_CMP
1509 select SYNC_R4K if BROKEN
1510 select SYS_SUPPORTS_SMP
1511 select SYS_SUPPORTS_SCHED_SMT if SMP
1512 select WEAK_ORDERING
1515 This is a placeholder option for the GCMP work. It will need to
1516 be handled differently...
1518 config SB1_PASS_1_WORKAROUNDS
1520 depends on CPU_SB1_PASS_1
1523 config SB1_PASS_2_WORKAROUNDS
1525 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1528 config SB1_PASS_2_1_WORKAROUNDS
1530 depends on CPU_SB1 && CPU_SB1_PASS_2
1533 config 64BIT_PHYS_ADDR
1539 config CPU_HAS_SMARTMIPS
1540 depends on SYS_SUPPORTS_SMARTMIPS
1541 bool "Support for the SmartMIPS ASE"
1543 SmartMIPS is a extension of the MIPS32 architecture aimed at
1544 increased security at both hardware and software level for
1545 smartcards. Enabling this option will allow proper use of the
1546 SmartMIPS instructions by Linux applications. However a kernel with
1547 this option will not work on a MIPS core without SmartMIPS core. If
1548 you don't know you probably don't have SmartMIPS and should say N
1555 # Vectored interrupt mode is an R2 feature
1557 config CPU_MIPSR2_IRQ_VI
1561 # Extended interrupt mode is an R2 feature
1563 config CPU_MIPSR2_IRQ_EI
1568 depends on !CPU_R3000
1571 config GENERIC_CLOCKEVENTS_BROADCAST
1577 config CPU_DADDI_WORKAROUNDS
1580 config CPU_R4000_WORKAROUNDS
1582 select CPU_R4400_WORKAROUNDS
1584 config CPU_R4400_WORKAROUNDS
1588 # Use the generic interrupt handling code in kernel/irq/:
1590 config GENERIC_HARDIRQS
1594 config GENERIC_IRQ_PROBE
1602 # - Highmem only makes sense for the 32-bit kernel.
1603 # - The current highmem code will only work properly on physically indexed
1604 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1605 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1606 # moment we protect the user and offer the highmem option only on machines
1607 # where it's known to be safe. This will not offer highmem on a few systems
1608 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1609 # indexed CPUs but we're playing safe.
1610 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1611 # know they might have memory configurations that could make use of highmem
1615 bool "High Memory Support"
1616 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1618 config CPU_SUPPORTS_HIGHMEM
1621 config SYS_SUPPORTS_HIGHMEM
1624 config SYS_SUPPORTS_SMARTMIPS
1627 config ARCH_FLATMEM_ENABLE
1631 config ARCH_DISCONTIGMEM_ENABLE
1633 default y if SGI_IP27
1635 Say Y to support efficient handling of discontiguous physical memory,
1636 for architectures which are either NUMA (Non-Uniform Memory Access)
1637 or have huge holes in the physical address space for other reasons.
1638 See <file:Documentation/vm/numa> for more.
1640 config ARCH_POPULATES_NODE_MAP
1643 config ARCH_SPARSEMEM_ENABLE
1645 select SPARSEMEM_STATIC
1649 depends on SYS_SUPPORTS_NUMA
1651 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1652 Access). This option improves performance on systems with more
1653 than two nodes; on two node systems it is generally better to
1654 leave it disabled; on single node systems disable this option
1657 config SYS_SUPPORTS_NUMA
1663 depends on NEED_MULTIPLE_NODES
1668 bool "Multi-Processing support"
1669 depends on SYS_SUPPORTS_SMP
1671 select USE_GENERIC_SMP_HELPERS
1673 This enables support for systems with more than one CPU. If you have
1674 a system with only one CPU, like most personal computers, say N. If
1675 you have a system with more than one CPU, say Y.
1677 If you say N here, the kernel will run on single and multiprocessor
1678 machines, but will use only one CPU of a multiprocessor machine. If
1679 you say Y here, the kernel will run on many, but not all,
1680 singleprocessor machines. On a singleprocessor machine, the kernel
1681 will run faster if you say N here.
1683 People using multiprocessor machines who say Y here should also say
1684 Y to "Enhanced Real Time Clock Support", below.
1686 See also the SMP-HOWTO available at
1687 <http://www.tldp.org/docs.html#howto>.
1689 If you don't know what to do here, say N.
1694 config SYS_SUPPORTS_MIPS_CMP
1697 config SYS_SUPPORTS_SMP
1700 config NR_CPUS_DEFAULT_1
1703 config NR_CPUS_DEFAULT_2
1706 config NR_CPUS_DEFAULT_4
1709 config NR_CPUS_DEFAULT_8
1712 config NR_CPUS_DEFAULT_16
1715 config NR_CPUS_DEFAULT_32
1718 config NR_CPUS_DEFAULT_64
1722 int "Maximum number of CPUs (2-64)"
1723 range 1 64 if NR_CPUS_DEFAULT_1
1725 default "1" if NR_CPUS_DEFAULT_1
1726 default "2" if NR_CPUS_DEFAULT_2
1727 default "4" if NR_CPUS_DEFAULT_4
1728 default "8" if NR_CPUS_DEFAULT_8
1729 default "16" if NR_CPUS_DEFAULT_16
1730 default "32" if NR_CPUS_DEFAULT_32
1731 default "64" if NR_CPUS_DEFAULT_64
1733 This allows you to specify the maximum number of CPUs which this
1734 kernel will support. The maximum supported value is 32 for 32-bit
1735 kernel and 64 for 64-bit kernels; the minimum value which makes
1736 sense is 1 for Qemu (useful only for kernel debugging purposes)
1737 and 2 for all others.
1739 This is purely to save memory - each supported CPU adds
1740 approximately eight kilobytes to the kernel image. For best
1741 performance should round up your number of processors to the next
1744 source "kernel/time/Kconfig"
1747 # Timer Interrupt Frequency Configuration
1751 prompt "Timer frequency"
1754 Allows the configuration of the timer frequency.
1757 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1760 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1763 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1766 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1769 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1772 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1775 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1779 config SYS_SUPPORTS_48HZ
1782 config SYS_SUPPORTS_100HZ
1785 config SYS_SUPPORTS_128HZ
1788 config SYS_SUPPORTS_250HZ
1791 config SYS_SUPPORTS_256HZ
1794 config SYS_SUPPORTS_1000HZ
1797 config SYS_SUPPORTS_1024HZ
1800 config SYS_SUPPORTS_ARBIT_HZ
1802 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1803 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1804 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1805 !SYS_SUPPORTS_1024HZ
1810 default 100 if HZ_100
1811 default 128 if HZ_128
1812 default 250 if HZ_250
1813 default 256 if HZ_256
1814 default 1000 if HZ_1000
1815 default 1024 if HZ_1024
1817 source "kernel/Kconfig.preempt"
1819 config MIPS_INSANE_LARGE
1820 bool "Support for large 64-bit configurations"
1821 depends on CPU_R10000 && 64BIT
1823 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1824 previous 64-bit processors which only supported 40 bit / 1TB. If you
1825 need processes of more than 1TB virtual address space, say Y here.
1826 This will result in additional memory usage, so it is not
1827 recommended for normal users.
1830 bool "Kexec system call (EXPERIMENTAL)"
1831 depends on EXPERIMENTAL
1833 kexec is a system call that implements the ability to shutdown your
1834 current kernel, and to start another kernel. It is like a reboot
1835 but it is independent of the system firmware. And like a reboot
1836 you can start any kernel with it, not just Linux.
1838 The name comes from the similarity to the exec system call.
1840 It is an ongoing process to be certain the hardware in a machine
1841 is properly shutdown, so do not be surprised if this code does not
1842 initially work for you. It may help to enable device hotplugging
1843 support. As of this writing the exact hardware interface is
1844 strongly in flux, so no good recommendation can be made.
1847 bool "Enable seccomp to safely compute untrusted bytecode"
1851 This kernel feature is useful for number crunching applications
1852 that may need to compute untrusted bytecode during their
1853 execution. By using pipes or other transports made available to
1854 the process as file descriptors supporting the read/write
1855 syscalls, it's possible to isolate those applications in
1856 their own address space using seccomp. Once seccomp is
1857 enabled via /proc/<pid>/seccomp, it cannot be disabled
1858 and the task is only allowed to execute a few safe syscalls
1859 defined by each seccomp mode.
1861 If unsure, say Y. Only embedded should say N here.
1865 config RWSEM_GENERIC_SPINLOCK
1869 config LOCKDEP_SUPPORT
1873 config STACKTRACE_SUPPORT
1877 source "init/Kconfig"
1879 config PROBE_INITRD_HEADER
1880 bool "Probe initrd header created by addinitrd"
1881 depends on BLK_DEV_INITRD
1883 Probe initrd header at the last page of kernel image.
1884 Say Y here if you are using arch/mips/boot/addinitrd.c to
1885 add initrd or initramfs image to the kernel image.
1888 source "kernel/Kconfig.freezer"
1890 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1898 bool "Support for PCI controller"
1899 depends on HW_HAS_PCI
1902 Find out whether you have a PCI motherboard. PCI is the name of a
1903 bus system, i.e. the way the CPU talks to the other stuff inside
1904 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1910 source "drivers/pci/Kconfig"
1913 # ISA support is now enabled via select. Too many systems still have the one
1914 # or other ISA chip on the board that users don't know about so don't expect
1915 # users to choose the right thing ...
1922 depends on HW_HAS_EISA
1924 select GENERIC_ISA_DMA
1926 The Extended Industry Standard Architecture (EISA) bus was
1927 developed as an open alternative to the IBM MicroChannel bus.
1929 The EISA bus provided some of the features of the IBM MicroChannel
1930 bus while maintaining backward compatibility with cards made for
1931 the older ISA bus. The EISA bus saw limited use between 1988 and
1932 1995 when it was made obsolete by the PCI bus.
1934 Say Y here if you are building a kernel for an EISA-based machine.
1938 source "drivers/eisa/Kconfig"
1941 bool "TURBOchannel support"
1942 depends on MACH_DECSTATION
1944 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1945 processors. Documentation on writing device drivers for TurboChannel
1947 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1950 # bool "Access.Bus support"
1963 source "drivers/pcmcia/Kconfig"
1965 source "drivers/pci/hotplug/Kconfig"
1969 menu "Executable file formats"
1971 source "fs/Kconfig.binfmt"
1976 config MIPS32_COMPAT
1977 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1980 Select this option if you want Linux/MIPS 32-bit binary
1981 compatibility. Since all software available for Linux/MIPS is
1982 currently 32-bit you should say Y here.
1986 depends on MIPS32_COMPAT
1989 config SYSVIPC_COMPAT
1991 depends on COMPAT && SYSVIPC
1995 bool "Kernel support for o32 binaries"
1996 depends on MIPS32_COMPAT
1998 Select this option if you want to run o32 binaries. These are pure
1999 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2000 existing binaries are in this format.
2005 bool "Kernel support for n32 binaries"
2006 depends on MIPS32_COMPAT
2008 Select this option if you want to run n32 binaries. These are
2009 64-bit binaries using 32-bit quantities for addressing and certain
2010 data that would normally be 64-bit. They are used in special
2017 default y if MIPS32_O32 || MIPS32_N32
2021 menu "Power management options"
2023 config ARCH_SUSPEND_POSSIBLE
2027 source "kernel/power/Kconfig"
2031 source "net/Kconfig"
2033 source "drivers/Kconfig"
2037 source "arch/mips/Kconfig.debug"
2039 source "security/Kconfig"
2041 source "crypto/Kconfig"
2043 source "lib/Kconfig"