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 EMMA series based machines"
245 bool "NEC VR4100 series based machines"
248 select SYS_HAS_CPU_VR41XX
249 select GENERIC_HARDIRQS_NO__DO_IRQ
252 bool "NXP STB220 board"
255 Support for NXP Semiconductors STB220 Development Board.
262 Support for NXP Semiconductors STB225 Development Board.
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/emma/Kconfig"
605 source "arch/mips/jazz/Kconfig"
606 source "arch/mips/lasat/Kconfig"
607 source "arch/mips/pmc-sierra/Kconfig"
608 source "arch/mips/sgi-ip27/Kconfig"
609 source "arch/mips/sibyte/Kconfig"
610 source "arch/mips/txx9/Kconfig"
611 source "arch/mips/vr41xx/Kconfig"
615 config RWSEM_GENERIC_SPINLOCK
619 config RWSEM_XCHGADD_ALGORITHM
622 config ARCH_HAS_ILOG2_U32
626 config ARCH_HAS_ILOG2_U64
630 config ARCH_SUPPORTS_OPROFILE
632 default y if !MIPS_MT_SMTC
634 config GENERIC_FIND_NEXT_BIT
638 config GENERIC_HWEIGHT
642 config GENERIC_CALIBRATE_DELAY
646 config GENERIC_CLOCKEVENTS
654 config GENERIC_CMOS_UPDATE
658 config SCHED_NO_NO_OMIT_FRAME_POINTER
662 config GENERIC_HARDIRQS_NO__DO_IRQ
667 # Select some configuration options automatically based on user selections.
672 config ARCH_MAY_HAVE_PC_FDC
710 select ARCH_REQUIRE_GPIOLIB
722 config DMA_NONCOHERENT
724 select DMA_NEED_PCI_MAP_STATE
726 config DMA_NEED_PCI_MAP_STATE
730 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
731 depends on SYS_HAS_EARLY_PRINTK
734 This option enables special console drivers which allow the kernel
735 to print messages very early in the bootup process.
737 This is useful for kernel debugging when your machine crashes very
738 early before the console code is initialized. For normal operation,
739 it is not recommended because it looks ugly on some machines and
740 doesn't cooperate with an X server. You should normally say N here,
741 unless you want to debug such a crash.
743 config SYS_HAS_EARLY_PRINTK
762 config MIPS_DISABLE_OBSOLETE_IDE
771 config GENERIC_ISA_DMA
773 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
775 config GENERIC_ISA_DMA_SUPPORT_BROKEN
777 select GENERIC_ISA_DMA
783 # Endianess selection. Sufficiently obscure so many users don't know what to
784 # answer,so we try hard to limit the available choices. Also the use of a
785 # choice statement should be more obvious to the user.
788 prompt "Endianess selection"
790 Some MIPS machines can be configured for either little or big endian
791 byte order. These modes require different kernels and a different
792 Linux distribution. In general there is one preferred byteorder for a
793 particular system but some systems are just as commonly used in the
794 one or the other endianness.
796 config CPU_BIG_ENDIAN
798 depends on SYS_SUPPORTS_BIG_ENDIAN
800 config CPU_LITTLE_ENDIAN
802 depends on SYS_SUPPORTS_LITTLE_ENDIAN
807 config SYS_SUPPORTS_APM_EMULATION
810 config SYS_SUPPORTS_BIG_ENDIAN
813 config SYS_SUPPORTS_LITTLE_ENDIAN
840 config MIPS_BOARDS_GEN
843 config PCI_GT64XXX_PCI0
846 config NO_EXCEPT_FILL
858 select DMA_NONCOHERENT
859 select SYS_HAS_CPU_MIPS32_R2
860 select SYS_SUPPORTS_32BIT_KERNEL
861 select SYS_SUPPORTS_LITTLE_ENDIAN
862 select SYS_SUPPORTS_BIG_ENDIAN
863 select GENERIC_HARDIRQS_NO__DO_IRQ
865 select CPU_MIPSR2_IRQ_VI
877 select DMA_NONCOHERENT
879 select SYS_HAS_CPU_MIPS32_R1
880 select SYS_HAS_EARLY_PRINTK
881 select SYS_SUPPORTS_32BIT_KERNEL
882 select GENERIC_HARDIRQS_NO__DO_IRQ
896 config SGI_HAS_DS1286
899 config SGI_HAS_INDYDOG
917 config DEFAULT_SGI_PARTITION
929 config MIPS_L1_CACHE_SHIFT
931 default "4" if MACH_DECSTATION || MIKROTIK_RB532
932 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
933 default "4" if PMC_MSP4200_EVAL
936 config HAVE_STD_PC_SERIAL_PORT
940 bool "ARC console support"
941 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
945 depends on MACH_JAZZ || SNI_RM || SGI_IP32
950 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
967 depends on SYS_HAS_CPU_LOONGSON2
968 select CPU_SUPPORTS_32BIT_KERNEL
969 select CPU_SUPPORTS_64BIT_KERNEL
970 select CPU_SUPPORTS_HIGHMEM
972 The Loongson 2E processor implements the MIPS III instruction set
973 with many extensions.
976 bool "MIPS32 Release 1"
977 depends on SYS_HAS_CPU_MIPS32_R1
979 select CPU_HAS_PREFETCH
980 select CPU_SUPPORTS_32BIT_KERNEL
981 select CPU_SUPPORTS_HIGHMEM
983 Choose this option to build a kernel for release 1 or later of the
984 MIPS32 architecture. Most modern embedded systems with a 32-bit
985 MIPS processor are based on a MIPS32 processor. If you know the
986 specific type of processor in your system, choose those that one
987 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
988 Release 2 of the MIPS32 architecture is available since several
989 years so chances are you even have a MIPS32 Release 2 processor
990 in which case you should choose CPU_MIPS32_R2 instead for better
994 bool "MIPS32 Release 2"
995 depends on SYS_HAS_CPU_MIPS32_R2
997 select CPU_HAS_PREFETCH
998 select CPU_SUPPORTS_32BIT_KERNEL
999 select CPU_SUPPORTS_HIGHMEM
1001 Choose this option to build a kernel for release 2 or later of the
1002 MIPS32 architecture. Most modern embedded systems with a 32-bit
1003 MIPS processor are based on a MIPS32 processor. If you know the
1004 specific type of processor in your system, choose those that one
1005 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1007 config CPU_MIPS64_R1
1008 bool "MIPS64 Release 1"
1009 depends on SYS_HAS_CPU_MIPS64_R1
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 1 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.
1021 Release 2 of the MIPS64 architecture is available since several
1022 years so chances are you even have a MIPS64 Release 2 processor
1023 in which case you should choose CPU_MIPS64_R2 instead for better
1026 config CPU_MIPS64_R2
1027 bool "MIPS64 Release 2"
1028 depends on SYS_HAS_CPU_MIPS64_R2
1030 select CPU_HAS_PREFETCH
1031 select CPU_SUPPORTS_32BIT_KERNEL
1032 select CPU_SUPPORTS_64BIT_KERNEL
1033 select CPU_SUPPORTS_HIGHMEM
1035 Choose this option to build a kernel for release 2 or later of the
1036 MIPS64 architecture. Many modern embedded systems with a 64-bit
1037 MIPS processor are based on a MIPS64 processor. If you know the
1038 specific type of processor in your system, choose those that one
1039 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1043 depends on SYS_HAS_CPU_R3000
1045 select CPU_SUPPORTS_32BIT_KERNEL
1046 select CPU_SUPPORTS_HIGHMEM
1048 Please make sure to pick the right CPU type. Linux/MIPS is not
1049 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1050 *not* work on R4000 machines and vice versa. However, since most
1051 of the supported machines have an R4000 (or similar) CPU, R4x00
1052 might be a safe bet. If the resulting kernel does not work,
1053 try to recompile with R3000.
1057 depends on SYS_HAS_CPU_TX39XX
1058 select CPU_SUPPORTS_32BIT_KERNEL
1062 depends on SYS_HAS_CPU_VR41XX
1063 select CPU_SUPPORTS_32BIT_KERNEL
1064 select CPU_SUPPORTS_64BIT_KERNEL
1066 The options selects support for the NEC VR4100 series of processors.
1067 Only choose this option if you have one of these processors as a
1068 kernel built with this option will not run on any other type of
1069 processor or vice versa.
1073 depends on SYS_HAS_CPU_R4300
1075 select CPU_SUPPORTS_32BIT_KERNEL
1076 select CPU_SUPPORTS_64BIT_KERNEL
1078 MIPS Technologies R4300-series processors.
1082 depends on SYS_HAS_CPU_R4X00
1084 select CPU_SUPPORTS_32BIT_KERNEL
1085 select CPU_SUPPORTS_64BIT_KERNEL
1087 MIPS Technologies R4000-series processors other than 4300, including
1088 the R4000, R4400, R4600, and 4700.
1092 depends on SYS_HAS_CPU_TX49XX
1094 select CPU_HAS_PREFETCH
1095 select CPU_SUPPORTS_32BIT_KERNEL
1096 select CPU_SUPPORTS_64BIT_KERNEL
1100 depends on SYS_HAS_CPU_R5000
1102 select CPU_SUPPORTS_32BIT_KERNEL
1103 select CPU_SUPPORTS_64BIT_KERNEL
1105 MIPS Technologies R5000-series processors other than the Nevada.
1109 depends on SYS_HAS_CPU_R5432
1111 select CPU_SUPPORTS_32BIT_KERNEL
1112 select CPU_SUPPORTS_64BIT_KERNEL
1116 depends on SYS_HAS_CPU_R5500
1118 select CPU_SUPPORTS_32BIT_KERNEL
1119 select CPU_SUPPORTS_64BIT_KERNEL
1121 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1126 depends on EXPERIMENTAL
1128 depends on SYS_HAS_CPU_R6000
1129 select CPU_SUPPORTS_32BIT_KERNEL
1131 MIPS Technologies R6000 and R6000A series processors. Note these
1132 processors are extremely rare and the support for them is incomplete.
1136 depends on SYS_HAS_CPU_NEVADA
1138 select CPU_SUPPORTS_32BIT_KERNEL
1139 select CPU_SUPPORTS_64BIT_KERNEL
1141 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1145 depends on EXPERIMENTAL
1146 depends on SYS_HAS_CPU_R8000
1148 select CPU_HAS_PREFETCH
1149 select CPU_SUPPORTS_64BIT_KERNEL
1151 MIPS Technologies R8000 processors. Note these processors are
1152 uncommon and the support for them is incomplete.
1156 depends on SYS_HAS_CPU_R10000
1158 select CPU_HAS_PREFETCH
1159 select CPU_SUPPORTS_32BIT_KERNEL
1160 select CPU_SUPPORTS_64BIT_KERNEL
1161 select CPU_SUPPORTS_HIGHMEM
1163 MIPS Technologies R10000-series processors.
1167 depends on SYS_HAS_CPU_RM7000
1169 select CPU_HAS_PREFETCH
1170 select CPU_SUPPORTS_32BIT_KERNEL
1171 select CPU_SUPPORTS_64BIT_KERNEL
1172 select CPU_SUPPORTS_HIGHMEM
1176 depends on SYS_HAS_CPU_RM9000
1178 select CPU_HAS_PREFETCH
1179 select CPU_SUPPORTS_32BIT_KERNEL
1180 select CPU_SUPPORTS_64BIT_KERNEL
1181 select CPU_SUPPORTS_HIGHMEM
1182 select WEAK_ORDERING
1186 depends on SYS_HAS_CPU_SB1
1188 select CPU_SUPPORTS_32BIT_KERNEL
1189 select CPU_SUPPORTS_64BIT_KERNEL
1190 select CPU_SUPPORTS_HIGHMEM
1191 select WEAK_ORDERING
1195 config SYS_HAS_CPU_LOONGSON2
1198 config SYS_HAS_CPU_MIPS32_R1
1201 config SYS_HAS_CPU_MIPS32_R2
1204 config SYS_HAS_CPU_MIPS64_R1
1207 config SYS_HAS_CPU_MIPS64_R2
1210 config SYS_HAS_CPU_R3000
1213 config SYS_HAS_CPU_TX39XX
1216 config SYS_HAS_CPU_VR41XX
1219 config SYS_HAS_CPU_R4300
1222 config SYS_HAS_CPU_R4X00
1225 config SYS_HAS_CPU_TX49XX
1228 config SYS_HAS_CPU_R5000
1231 config SYS_HAS_CPU_R5432
1234 config SYS_HAS_CPU_R5500
1237 config SYS_HAS_CPU_R6000
1240 config SYS_HAS_CPU_NEVADA
1243 config SYS_HAS_CPU_R8000
1246 config SYS_HAS_CPU_R10000
1249 config SYS_HAS_CPU_RM7000
1252 config SYS_HAS_CPU_RM9000
1255 config SYS_HAS_CPU_SB1
1259 # CPU may reorder R->R, R->W, W->R, W->W
1260 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1262 config WEAK_ORDERING
1266 # CPU may reorder reads and writes beyond LL/SC
1267 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1269 config WEAK_REORDERING_BEYOND_LLSC
1274 # These two indicate any level of the MIPS32 and MIPS64 architecture
1278 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1282 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1285 # These two indicate the revision of the architecture, either Release 1 or Release 2
1289 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1293 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1295 config SYS_SUPPORTS_32BIT_KERNEL
1297 config SYS_SUPPORTS_64BIT_KERNEL
1299 config CPU_SUPPORTS_32BIT_KERNEL
1301 config CPU_SUPPORTS_64BIT_KERNEL
1305 # Set to y for ptrace access to watch registers.
1307 config HARDWARE_WATCHPOINTS
1309 default y if CPU_MIPS32 || CPU_MIPS64
1315 prompt "Kernel code model"
1317 You should only select this option if you have a workload that
1318 actually benefits from 64-bit processing or if your machine has
1319 large memory. You will only be presented a single option in this
1320 menu if your system does not support both 32-bit and 64-bit kernels.
1323 bool "32-bit kernel"
1324 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1327 Select this option if you want to build a 32-bit kernel.
1329 bool "64-bit kernel"
1330 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1332 Select this option if you want to build a 64-bit kernel.
1337 prompt "Kernel page size"
1338 default PAGE_SIZE_4KB
1340 config PAGE_SIZE_4KB
1343 This option select the standard 4kB Linux page size. On some
1344 R3000-family processors this is the only available page size. Using
1345 4kB page size will minimize memory consumption and is therefore
1346 recommended for low memory systems.
1348 config PAGE_SIZE_8KB
1350 depends on EXPERIMENTAL && CPU_R8000
1352 Using 8kB page size will result in higher performance kernel at
1353 the price of higher memory consumption. This option is available
1354 only on the R8000 processor. Not that at the time of this writing
1355 this option is still high experimental; there are also issues with
1356 compatibility of user applications.
1358 config PAGE_SIZE_16KB
1360 depends on !CPU_R3000 && !CPU_TX39XX
1362 Using 16kB page size will result in higher performance kernel at
1363 the price of higher memory consumption. This option is available on
1364 all non-R3000 family processors. Note that you will need a suitable
1365 Linux distribution to support this.
1367 config PAGE_SIZE_64KB
1369 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1371 Using 64kB page size will result in higher performance kernel at
1372 the price of higher memory consumption. This option is available on
1373 all non-R3000 family processor. Not that at the time of this
1374 writing this option is still high experimental.
1381 config IP22_CPU_SCACHE
1386 # Support for a MIPS32 / MIPS64 style S-caches
1388 config MIPS_CPU_SCACHE
1392 config R5000_CPU_SCACHE
1396 config RM7000_CPU_SCACHE
1400 config SIBYTE_DMA_PAGEOPS
1401 bool "Use DMA to clear/copy pages"
1404 Instead of using the CPU to zero and copy pages, use a Data Mover
1405 channel. These DMA channels are otherwise unused by the standard
1406 SiByte Linux port. Seems to give a small performance benefit.
1408 config CPU_HAS_PREFETCH
1412 prompt "MIPS MT options"
1414 config MIPS_MT_DISABLED
1415 bool "Disable multithreading support."
1417 Use this option if your workload can't take advantage of
1418 MIPS hardware multithreading support. On systems that don't have
1419 the option of an MT-enabled processor this option will be the only
1420 option in this menu.
1423 bool "Use 1 TC on each available VPE for SMP"
1424 depends on SYS_SUPPORTS_MULTITHREADING
1425 select CPU_MIPSR2_IRQ_VI
1426 select CPU_MIPSR2_IRQ_EI
1428 select NR_CPUS_DEFAULT_2
1430 select SYS_SUPPORTS_SCHED_SMT if SMP
1431 select SYS_SUPPORTS_SMP
1434 This is a kernel model which is also known a VSMP or lately
1435 has been marketesed into SMVP.
1438 bool "SMTC: Use all TCs on all VPEs for SMP"
1439 depends on CPU_MIPS32_R2
1440 #depends on CPU_MIPS64_R2 # once there is hardware ...
1441 depends on SYS_SUPPORTS_MULTITHREADING
1442 select CPU_MIPSR2_IRQ_VI
1443 select CPU_MIPSR2_IRQ_EI
1445 select NR_CPUS_DEFAULT_8
1447 select SYS_SUPPORTS_SMP
1450 This is a kernel model which is known a SMTC or lately has been
1451 marketesed into SMVP.
1459 bool "SMT (multithreading) scheduler support"
1460 depends on SYS_SUPPORTS_SCHED_SMT
1463 SMT scheduler support improves the CPU scheduler's decision making
1464 when dealing with MIPS MT enabled cores at a cost of slightly
1465 increased overhead in some places. If unsure say N here.
1467 config SYS_SUPPORTS_SCHED_SMT
1471 config SYS_SUPPORTS_MULTITHREADING
1474 config MIPS_MT_FPAFF
1475 bool "Dynamic FPU affinity for FP-intensive threads"
1477 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1479 config MIPS_VPE_LOADER
1480 bool "VPE loader support."
1481 depends on SYS_SUPPORTS_MULTITHREADING
1482 select CPU_MIPSR2_IRQ_VI
1483 select CPU_MIPSR2_IRQ_EI
1486 Includes a loader for loading an elf relocatable object
1487 onto another VPE and running it.
1489 config MIPS_MT_SMTC_IM_BACKSTOP
1490 bool "Use per-TC register bits as backstop for inhibited IM bits"
1491 depends on MIPS_MT_SMTC
1494 To support multiple TC microthreads acting as "CPUs" within
1495 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1496 during interrupt handling. To support legacy drivers and interrupt
1497 controller management code, SMTC has a "backstop" to track and
1498 if necessary restore the interrupt mask. This has some performance
1499 impact on interrupt service overhead.
1501 config MIPS_MT_SMTC_IRQAFF
1502 bool "Support IRQ affinity API"
1503 depends on MIPS_MT_SMTC
1506 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1507 for SMTC Linux kernel. Requires platform support, of which
1508 an example can be found in the MIPS kernel i8259 and Malta
1509 platform code. Adds some overhead to interrupt dispatch, and
1510 should be used only if you know what you are doing.
1512 config MIPS_VPE_LOADER_TOM
1513 bool "Load VPE program into memory hidden from linux"
1514 depends on MIPS_VPE_LOADER
1517 The loader can use memory that is present but has been hidden from
1518 Linux using the kernel command line option "mem=xxMB". It's up to
1519 you to ensure the amount you put in the option and the space your
1520 program requires is less or equal to the amount physically present.
1522 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1523 config MIPS_VPE_APSP_API
1524 bool "Enable support for AP/SP API (RTLX)"
1525 depends on MIPS_VPE_LOADER
1528 config MIPS_APSP_KSPD
1530 depends on MIPS_VPE_APSP_API
1533 KSPD is a kernel daemon that accepts syscall requests from the SP
1534 side, actions them and returns the results. It also handles the
1535 "exit" syscall notifying other kernel modules the SP program is
1536 exiting. You probably want to say yes here.
1539 bool "MIPS CMP framework support"
1540 depends on SYS_SUPPORTS_MIPS_CMP
1541 select SYNC_R4K if BROKEN
1542 select SYS_SUPPORTS_SMP
1543 select SYS_SUPPORTS_SCHED_SMT if SMP
1544 select WEAK_ORDERING
1547 This is a placeholder option for the GCMP work. It will need to
1548 be handled differently...
1550 config SB1_PASS_1_WORKAROUNDS
1552 depends on CPU_SB1_PASS_1
1555 config SB1_PASS_2_WORKAROUNDS
1557 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1560 config SB1_PASS_2_1_WORKAROUNDS
1562 depends on CPU_SB1 && CPU_SB1_PASS_2
1565 config 64BIT_PHYS_ADDR
1571 config CPU_HAS_SMARTMIPS
1572 depends on SYS_SUPPORTS_SMARTMIPS
1573 bool "Support for the SmartMIPS ASE"
1575 SmartMIPS is a extension of the MIPS32 architecture aimed at
1576 increased security at both hardware and software level for
1577 smartcards. Enabling this option will allow proper use of the
1578 SmartMIPS instructions by Linux applications. However a kernel with
1579 this option will not work on a MIPS core without SmartMIPS core. If
1580 you don't know you probably don't have SmartMIPS and should say N
1587 # Vectored interrupt mode is an R2 feature
1589 config CPU_MIPSR2_IRQ_VI
1593 # Extended interrupt mode is an R2 feature
1595 config CPU_MIPSR2_IRQ_EI
1600 depends on !CPU_R3000
1603 config GENERIC_CLOCKEVENTS_BROADCAST
1609 config CPU_DADDI_WORKAROUNDS
1612 config CPU_R4000_WORKAROUNDS
1614 select CPU_R4400_WORKAROUNDS
1616 config CPU_R4400_WORKAROUNDS
1620 # Use the generic interrupt handling code in kernel/irq/:
1622 config GENERIC_HARDIRQS
1626 config GENERIC_IRQ_PROBE
1634 # - Highmem only makes sense for the 32-bit kernel.
1635 # - The current highmem code will only work properly on physically indexed
1636 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1637 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1638 # moment we protect the user and offer the highmem option only on machines
1639 # where it's known to be safe. This will not offer highmem on a few systems
1640 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1641 # indexed CPUs but we're playing safe.
1642 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1643 # know they might have memory configurations that could make use of highmem
1647 bool "High Memory Support"
1648 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1650 config CPU_SUPPORTS_HIGHMEM
1653 config SYS_SUPPORTS_HIGHMEM
1656 config SYS_SUPPORTS_SMARTMIPS
1659 config ARCH_FLATMEM_ENABLE
1663 config ARCH_DISCONTIGMEM_ENABLE
1665 default y if SGI_IP27
1667 Say Y to support efficient handling of discontiguous physical memory,
1668 for architectures which are either NUMA (Non-Uniform Memory Access)
1669 or have huge holes in the physical address space for other reasons.
1670 See <file:Documentation/vm/numa> for more.
1672 config ARCH_POPULATES_NODE_MAP
1675 config ARCH_SPARSEMEM_ENABLE
1677 select SPARSEMEM_STATIC
1681 depends on SYS_SUPPORTS_NUMA
1683 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1684 Access). This option improves performance on systems with more
1685 than two nodes; on two node systems it is generally better to
1686 leave it disabled; on single node systems disable this option
1689 config SYS_SUPPORTS_NUMA
1695 depends on NEED_MULTIPLE_NODES
1700 bool "Multi-Processing support"
1701 depends on SYS_SUPPORTS_SMP
1703 select USE_GENERIC_SMP_HELPERS
1705 This enables support for systems with more than one CPU. If you have
1706 a system with only one CPU, like most personal computers, say N. If
1707 you have a system with more than one CPU, say Y.
1709 If you say N here, the kernel will run on single and multiprocessor
1710 machines, but will use only one CPU of a multiprocessor machine. If
1711 you say Y here, the kernel will run on many, but not all,
1712 singleprocessor machines. On a singleprocessor machine, the kernel
1713 will run faster if you say N here.
1715 People using multiprocessor machines who say Y here should also say
1716 Y to "Enhanced Real Time Clock Support", below.
1718 See also the SMP-HOWTO available at
1719 <http://www.tldp.org/docs.html#howto>.
1721 If you don't know what to do here, say N.
1726 config SYS_SUPPORTS_MIPS_CMP
1729 config SYS_SUPPORTS_SMP
1732 config NR_CPUS_DEFAULT_1
1735 config NR_CPUS_DEFAULT_2
1738 config NR_CPUS_DEFAULT_4
1741 config NR_CPUS_DEFAULT_8
1744 config NR_CPUS_DEFAULT_16
1747 config NR_CPUS_DEFAULT_32
1750 config NR_CPUS_DEFAULT_64
1754 int "Maximum number of CPUs (2-64)"
1755 range 1 64 if NR_CPUS_DEFAULT_1
1757 default "1" if NR_CPUS_DEFAULT_1
1758 default "2" if NR_CPUS_DEFAULT_2
1759 default "4" if NR_CPUS_DEFAULT_4
1760 default "8" if NR_CPUS_DEFAULT_8
1761 default "16" if NR_CPUS_DEFAULT_16
1762 default "32" if NR_CPUS_DEFAULT_32
1763 default "64" if NR_CPUS_DEFAULT_64
1765 This allows you to specify the maximum number of CPUs which this
1766 kernel will support. The maximum supported value is 32 for 32-bit
1767 kernel and 64 for 64-bit kernels; the minimum value which makes
1768 sense is 1 for Qemu (useful only for kernel debugging purposes)
1769 and 2 for all others.
1771 This is purely to save memory - each supported CPU adds
1772 approximately eight kilobytes to the kernel image. For best
1773 performance should round up your number of processors to the next
1776 source "kernel/time/Kconfig"
1779 # Timer Interrupt Frequency Configuration
1783 prompt "Timer frequency"
1786 Allows the configuration of the timer frequency.
1789 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1792 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1795 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1798 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1801 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1804 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1807 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1811 config SYS_SUPPORTS_48HZ
1814 config SYS_SUPPORTS_100HZ
1817 config SYS_SUPPORTS_128HZ
1820 config SYS_SUPPORTS_250HZ
1823 config SYS_SUPPORTS_256HZ
1826 config SYS_SUPPORTS_1000HZ
1829 config SYS_SUPPORTS_1024HZ
1832 config SYS_SUPPORTS_ARBIT_HZ
1834 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1835 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1836 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1837 !SYS_SUPPORTS_1024HZ
1842 default 100 if HZ_100
1843 default 128 if HZ_128
1844 default 250 if HZ_250
1845 default 256 if HZ_256
1846 default 1000 if HZ_1000
1847 default 1024 if HZ_1024
1849 source "kernel/Kconfig.preempt"
1851 config MIPS_INSANE_LARGE
1852 bool "Support for large 64-bit configurations"
1853 depends on CPU_R10000 && 64BIT
1855 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1856 previous 64-bit processors which only supported 40 bit / 1TB. If you
1857 need processes of more than 1TB virtual address space, say Y here.
1858 This will result in additional memory usage, so it is not
1859 recommended for normal users.
1862 bool "Kexec system call (EXPERIMENTAL)"
1863 depends on EXPERIMENTAL
1865 kexec is a system call that implements the ability to shutdown your
1866 current kernel, and to start another kernel. It is like a reboot
1867 but it is independent of the system firmware. And like a reboot
1868 you can start any kernel with it, not just Linux.
1870 The name comes from the similarity to the exec system call.
1872 It is an ongoing process to be certain the hardware in a machine
1873 is properly shutdown, so do not be surprised if this code does not
1874 initially work for you. It may help to enable device hotplugging
1875 support. As of this writing the exact hardware interface is
1876 strongly in flux, so no good recommendation can be made.
1879 bool "Enable seccomp to safely compute untrusted bytecode"
1883 This kernel feature is useful for number crunching applications
1884 that may need to compute untrusted bytecode during their
1885 execution. By using pipes or other transports made available to
1886 the process as file descriptors supporting the read/write
1887 syscalls, it's possible to isolate those applications in
1888 their own address space using seccomp. Once seccomp is
1889 enabled via /proc/<pid>/seccomp, it cannot be disabled
1890 and the task is only allowed to execute a few safe syscalls
1891 defined by each seccomp mode.
1893 If unsure, say Y. Only embedded should say N here.
1897 config RWSEM_GENERIC_SPINLOCK
1901 config LOCKDEP_SUPPORT
1905 config STACKTRACE_SUPPORT
1909 source "init/Kconfig"
1911 config PROBE_INITRD_HEADER
1912 bool "Probe initrd header created by addinitrd"
1913 depends on BLK_DEV_INITRD
1915 Probe initrd header at the last page of kernel image.
1916 Say Y here if you are using arch/mips/boot/addinitrd.c to
1917 add initrd or initramfs image to the kernel image.
1920 source "kernel/Kconfig.freezer"
1922 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1930 bool "Support for PCI controller"
1931 depends on HW_HAS_PCI
1934 Find out whether you have a PCI motherboard. PCI is the name of a
1935 bus system, i.e. the way the CPU talks to the other stuff inside
1936 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1942 source "drivers/pci/Kconfig"
1945 # ISA support is now enabled via select. Too many systems still have the one
1946 # or other ISA chip on the board that users don't know about so don't expect
1947 # users to choose the right thing ...
1954 depends on HW_HAS_EISA
1956 select GENERIC_ISA_DMA
1958 The Extended Industry Standard Architecture (EISA) bus was
1959 developed as an open alternative to the IBM MicroChannel bus.
1961 The EISA bus provided some of the features of the IBM MicroChannel
1962 bus while maintaining backward compatibility with cards made for
1963 the older ISA bus. The EISA bus saw limited use between 1988 and
1964 1995 when it was made obsolete by the PCI bus.
1966 Say Y here if you are building a kernel for an EISA-based machine.
1970 source "drivers/eisa/Kconfig"
1973 bool "TURBOchannel support"
1974 depends on MACH_DECSTATION
1976 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1977 processors. Documentation on writing device drivers for TurboChannel
1979 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1982 # bool "Access.Bus support"
1995 source "drivers/pcmcia/Kconfig"
1997 source "drivers/pci/hotplug/Kconfig"
2001 menu "Executable file formats"
2003 source "fs/Kconfig.binfmt"
2008 config MIPS32_COMPAT
2009 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2012 Select this option if you want Linux/MIPS 32-bit binary
2013 compatibility. Since all software available for Linux/MIPS is
2014 currently 32-bit you should say Y here.
2018 depends on MIPS32_COMPAT
2021 config SYSVIPC_COMPAT
2023 depends on COMPAT && SYSVIPC
2027 bool "Kernel support for o32 binaries"
2028 depends on MIPS32_COMPAT
2030 Select this option if you want to run o32 binaries. These are pure
2031 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2032 existing binaries are in this format.
2037 bool "Kernel support for n32 binaries"
2038 depends on MIPS32_COMPAT
2040 Select this option if you want to run n32 binaries. These are
2041 64-bit binaries using 32-bit quantities for addressing and certain
2042 data that would normally be 64-bit. They are used in special
2049 default y if MIPS32_O32 || MIPS32_N32
2053 menu "Power management options"
2055 config ARCH_SUSPEND_POSSIBLE
2059 source "kernel/power/Kconfig"
2063 source "net/Kconfig"
2065 source "drivers/Kconfig"
2069 source "arch/mips/Kconfig.debug"
2071 source "security/Kconfig"
2073 source "crypto/Kconfig"
2075 source "lib/Kconfig"