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 STB220 board"
268 Support for NXP Semiconductors STB220 Development Board.
275 Support for NXP Semiconductors STB225 Development Board.
278 bool "NXP PNX8550 based JBS board"
280 select SYS_SUPPORTS_LITTLE_ENDIAN
282 config PNX8550_STB810
283 bool "NXP PNX8550 based STB810 board"
285 select SYS_SUPPORTS_LITTLE_ENDIAN
288 bool "PMC-Sierra MSP chipsets"
289 depends on EXPERIMENTAL
290 select DMA_NONCOHERENT
292 select NO_EXCEPT_FILL
294 select SYS_HAS_CPU_MIPS32_R1
295 select SYS_HAS_CPU_MIPS32_R2
296 select SYS_SUPPORTS_32BIT_KERNEL
297 select SYS_SUPPORTS_BIG_ENDIAN
300 select SERIAL_8250_CONSOLE
302 This adds support for the PMC-Sierra family of Multi-Service
303 Processor System-On-A-Chips. These parts include a number
304 of integrated peripherals, interfaces and DSPs in addition to
305 a variety of MIPS cores.
308 bool "PMC-Sierra Yosemite eval board"
317 select SYS_HAS_CPU_RM9000
318 select SYS_HAS_EARLY_PRINTK
319 select SYS_SUPPORTS_32BIT_KERNEL
320 select SYS_SUPPORTS_64BIT_KERNEL
321 select SYS_SUPPORTS_BIG_ENDIAN
322 select SYS_SUPPORTS_HIGHMEM
323 select SYS_SUPPORTS_SMP
325 Yosemite is an evaluation board for the RM9000x2 processor
326 manufactured by PMC-Sierra.
329 bool "SGI IP22 (Indy/Indigo2)"
335 select DEFAULT_SGI_PARTITION
336 select DMA_NONCOHERENT
340 select IP22_CPU_SCACHE
342 select GENERIC_ISA_DMA_SUPPORT_BROKEN
343 select SGI_HAS_DS1286
345 select SGI_HAS_INDYDOG
351 select SYS_HAS_CPU_R4X00
352 select SYS_HAS_CPU_R5000
353 select SYS_HAS_EARLY_PRINTK
354 select SYS_SUPPORTS_32BIT_KERNEL
355 select SYS_SUPPORTS_64BIT_KERNEL
356 select SYS_SUPPORTS_BIG_ENDIAN
358 This are the SGI Indy, Challenge S and Indigo2, as well as certain
359 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
360 that runs on these, say Y here.
363 bool "SGI IP27 (Origin200/2000)"
367 select DEFAULT_SGI_PARTITION
369 select SYS_HAS_EARLY_PRINTK
371 select NR_CPUS_DEFAULT_64
372 select SYS_HAS_CPU_R10000
373 select SYS_SUPPORTS_64BIT_KERNEL
374 select SYS_SUPPORTS_BIG_ENDIAN
375 select SYS_SUPPORTS_NUMA
376 select SYS_SUPPORTS_SMP
377 select GENERIC_HARDIRQS_NO__DO_IRQ
379 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
380 workstations. To compile a Linux kernel that runs on these, say Y
384 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
385 depends on EXPERIMENTAL
391 select DEFAULT_SGI_PARTITION
392 select DMA_NONCOHERENT
393 select GENERIC_ISA_DMA_SUPPORT_BROKEN
398 select SGI_HAS_DS1286
400 select SGI_HAS_INDYDOG
406 select SYS_HAS_CPU_R10000
407 select SYS_HAS_EARLY_PRINTK
408 select SYS_SUPPORTS_64BIT_KERNEL
409 select SYS_SUPPORTS_BIG_ENDIAN
411 This is the SGI Indigo2 with R10000 processor. To compile a Linux
412 kernel that runs on these, say Y here.
421 select DMA_NONCOHERENT
424 select R5000_CPU_SCACHE
425 select RM7000_CPU_SCACHE
426 select SYS_HAS_CPU_R5000
427 select SYS_HAS_CPU_R10000 if BROKEN
428 select SYS_HAS_CPU_RM7000
429 select SYS_HAS_CPU_NEVADA
430 select SYS_SUPPORTS_64BIT_KERNEL
431 select SYS_SUPPORTS_BIG_ENDIAN
433 If you want this kernel to run on SGI O2 workstation, say Y here.
436 bool "Sibyte BCM91120C-CRhine"
437 depends on EXPERIMENTAL
440 select SIBYTE_BCM1120
442 select SYS_HAS_CPU_SB1
443 select SYS_SUPPORTS_BIG_ENDIAN
444 select SYS_SUPPORTS_LITTLE_ENDIAN
447 bool "Sibyte BCM91120x-Carmel"
448 depends on EXPERIMENTAL
451 select SIBYTE_BCM1120
453 select SYS_HAS_CPU_SB1
454 select SYS_SUPPORTS_BIG_ENDIAN
455 select SYS_SUPPORTS_LITTLE_ENDIAN
458 bool "Sibyte BCM91125C-CRhone"
459 depends on EXPERIMENTAL
462 select SIBYTE_BCM1125
464 select SYS_HAS_CPU_SB1
465 select SYS_SUPPORTS_BIG_ENDIAN
466 select SYS_SUPPORTS_HIGHMEM
467 select SYS_SUPPORTS_LITTLE_ENDIAN
470 bool "Sibyte BCM91125E-Rhone"
471 depends on EXPERIMENTAL
474 select SIBYTE_BCM1125H
476 select SYS_HAS_CPU_SB1
477 select SYS_SUPPORTS_BIG_ENDIAN
478 select SYS_SUPPORTS_LITTLE_ENDIAN
481 bool "Sibyte BCM91250A-SWARM"
484 select NR_CPUS_DEFAULT_2
487 select SYS_HAS_CPU_SB1
488 select SYS_SUPPORTS_BIG_ENDIAN
489 select SYS_SUPPORTS_HIGHMEM
490 select SYS_SUPPORTS_LITTLE_ENDIAN
491 select ZONE_DMA32 if 64BIT
493 config SIBYTE_LITTLESUR
494 bool "Sibyte BCM91250C2-LittleSur"
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_HIGHMEM
504 select SYS_SUPPORTS_LITTLE_ENDIAN
506 config SIBYTE_SENTOSA
507 bool "Sibyte BCM91250E-Sentosa"
508 depends on EXPERIMENTAL
511 select NR_CPUS_DEFAULT_2
514 select SYS_HAS_CPU_SB1
515 select SYS_SUPPORTS_BIG_ENDIAN
516 select SYS_SUPPORTS_LITTLE_ENDIAN
519 bool "Sibyte BCM91480B-BigSur"
522 select NR_CPUS_DEFAULT_4
523 select SIBYTE_BCM1x80
525 select SYS_HAS_CPU_SB1
526 select SYS_SUPPORTS_BIG_ENDIAN
527 select SYS_SUPPORTS_HIGHMEM
528 select SYS_SUPPORTS_LITTLE_ENDIAN
529 select ZONE_DMA32 if 64BIT
532 bool "SNI RM200/300/400"
533 select ARC if CPU_LITTLE_ENDIAN
534 select ARC32 if CPU_LITTLE_ENDIAN
535 select SNIPROM if CPU_BIG_ENDIAN
536 select ARCH_MAY_HAVE_PC_FDC
540 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
541 select DMA_NONCOHERENT
542 select GENERIC_ISA_DMA
549 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
550 select SYS_HAS_CPU_R4X00
551 select SYS_HAS_CPU_R5000
552 select SYS_HAS_CPU_R10000
553 select R5000_CPU_SCACHE
554 select SYS_HAS_EARLY_PRINTK
555 select SYS_SUPPORTS_32BIT_KERNEL
556 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
557 select SYS_SUPPORTS_BIG_ENDIAN
558 select SYS_SUPPORTS_HIGHMEM
559 select SYS_SUPPORTS_LITTLE_ENDIAN
561 The SNI RM200/300/400 are MIPS-based machines manufactured by
562 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
563 Technology and now in turn merged with Fujitsu. Say Y here to
564 support this machine type.
567 bool "Toshiba TX39 series based machines"
570 bool "Toshiba TX49 series based machines"
572 config MIKROTIK_RB532
573 bool "Mikrotik RB532 boards"
576 select DMA_NONCOHERENT
577 select GENERIC_HARDIRQS_NO__DO_IRQ
580 select SYS_HAS_CPU_MIPS32_R1
581 select SYS_SUPPORTS_32BIT_KERNEL
582 select SYS_SUPPORTS_LITTLE_ENDIAN
585 select ARCH_REQUIRE_GPIOLIB
587 Support the Mikrotik(tm) RouterBoard 532 series,
588 based on the IDT RC32434 SoC.
591 bool "Wind River PPMC board"
596 select DMA_NONCOHERENT
598 select PCI_GT64XXX_PCI0
600 select SYS_HAS_CPU_MIPS32_R1
601 select SYS_HAS_CPU_MIPS32_R2
602 select SYS_HAS_CPU_MIPS64_R1
603 select SYS_HAS_CPU_NEVADA
604 select SYS_HAS_CPU_RM7000
605 select SYS_SUPPORTS_32BIT_KERNEL
606 select SYS_SUPPORTS_64BIT_KERNEL
607 select SYS_SUPPORTS_BIG_ENDIAN
608 select SYS_SUPPORTS_LITTLE_ENDIAN
610 This enables support for the Wind River MIPS32 4KC PPMC evaluation
611 board, which is based on GT64120 bridge chip.
615 source "arch/mips/alchemy/Kconfig"
616 source "arch/mips/basler/excite/Kconfig"
617 source "arch/mips/jazz/Kconfig"
618 source "arch/mips/lasat/Kconfig"
619 source "arch/mips/pmc-sierra/Kconfig"
620 source "arch/mips/sgi-ip27/Kconfig"
621 source "arch/mips/sibyte/Kconfig"
622 source "arch/mips/txx9/Kconfig"
623 source "arch/mips/vr41xx/Kconfig"
627 config RWSEM_GENERIC_SPINLOCK
631 config RWSEM_XCHGADD_ALGORITHM
634 config ARCH_HAS_ILOG2_U32
638 config ARCH_HAS_ILOG2_U64
642 config ARCH_SUPPORTS_OPROFILE
644 default y if !MIPS_MT_SMTC
646 config GENERIC_FIND_NEXT_BIT
650 config GENERIC_HWEIGHT
654 config GENERIC_CALIBRATE_DELAY
658 config GENERIC_CLOCKEVENTS
666 config GENERIC_CMOS_UPDATE
670 config SCHED_NO_NO_OMIT_FRAME_POINTER
674 config GENERIC_HARDIRQS_NO__DO_IRQ
679 # Select some configuration options automatically based on user selections.
684 config ARCH_MAY_HAVE_PC_FDC
722 select ARCH_REQUIRE_GPIOLIB
734 config DMA_NONCOHERENT
736 select DMA_NEED_PCI_MAP_STATE
738 config DMA_NEED_PCI_MAP_STATE
742 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
743 depends on SYS_HAS_EARLY_PRINTK
746 This option enables special console drivers which allow the kernel
747 to print messages very early in the bootup process.
749 This is useful for kernel debugging when your machine crashes very
750 early before the console code is initialized. For normal operation,
751 it is not recommended because it looks ugly on some machines and
752 doesn't cooperate with an X server. You should normally say N here,
753 unless you want to debug such a crash.
755 config SYS_HAS_EARLY_PRINTK
774 config MIPS_DISABLE_OBSOLETE_IDE
783 config GENERIC_ISA_DMA
785 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
787 config GENERIC_ISA_DMA_SUPPORT_BROKEN
789 select GENERIC_ISA_DMA
795 # Endianess selection. Sufficiently obscure so many users don't know what to
796 # answer,so we try hard to limit the available choices. Also the use of a
797 # choice statement should be more obvious to the user.
800 prompt "Endianess selection"
802 Some MIPS machines can be configured for either little or big endian
803 byte order. These modes require different kernels and a different
804 Linux distribution. In general there is one preferred byteorder for a
805 particular system but some systems are just as commonly used in the
806 one or the other endianness.
808 config CPU_BIG_ENDIAN
810 depends on SYS_SUPPORTS_BIG_ENDIAN
812 config CPU_LITTLE_ENDIAN
814 depends on SYS_SUPPORTS_LITTLE_ENDIAN
819 config SYS_SUPPORTS_APM_EMULATION
822 config SYS_SUPPORTS_BIG_ENDIAN
825 config SYS_SUPPORTS_LITTLE_ENDIAN
852 config MIPS_BOARDS_GEN
855 config PCI_GT64XXX_PCI0
858 config NO_EXCEPT_FILL
870 select DMA_NONCOHERENT
871 select SYS_HAS_CPU_MIPS32_R2
872 select SYS_SUPPORTS_32BIT_KERNEL
873 select SYS_SUPPORTS_LITTLE_ENDIAN
874 select SYS_SUPPORTS_BIG_ENDIAN
875 select GENERIC_HARDIRQS_NO__DO_IRQ
877 select CPU_MIPSR2_IRQ_VI
889 select DMA_NONCOHERENT
891 select SYS_HAS_CPU_MIPS32_R1
892 select SYS_HAS_EARLY_PRINTK
893 select SYS_SUPPORTS_32BIT_KERNEL
894 select GENERIC_HARDIRQS_NO__DO_IRQ
908 config SGI_HAS_DS1286
911 config SGI_HAS_INDYDOG
929 config DEFAULT_SGI_PARTITION
941 config MIPS_L1_CACHE_SHIFT
943 default "4" if MACH_DECSTATION || MIKROTIK_RB532
944 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
945 default "4" if PMC_MSP4200_EVAL
948 config HAVE_STD_PC_SERIAL_PORT
952 bool "ARC console support"
953 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
957 depends on MACH_JAZZ || SNI_RM || SGI_IP32
962 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
979 depends on SYS_HAS_CPU_LOONGSON2
980 select CPU_SUPPORTS_32BIT_KERNEL
981 select CPU_SUPPORTS_64BIT_KERNEL
982 select CPU_SUPPORTS_HIGHMEM
984 The Loongson 2E processor implements the MIPS III instruction set
985 with many extensions.
988 bool "MIPS32 Release 1"
989 depends on SYS_HAS_CPU_MIPS32_R1
991 select CPU_HAS_PREFETCH
992 select CPU_SUPPORTS_32BIT_KERNEL
993 select CPU_SUPPORTS_HIGHMEM
995 Choose this option to build a kernel for release 1 or later of the
996 MIPS32 architecture. Most modern embedded systems with a 32-bit
997 MIPS processor are based on a MIPS32 processor. If you know the
998 specific type of processor in your system, choose those that one
999 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1000 Release 2 of the MIPS32 architecture is available since several
1001 years so chances are you even have a MIPS32 Release 2 processor
1002 in which case you should choose CPU_MIPS32_R2 instead for better
1005 config CPU_MIPS32_R2
1006 bool "MIPS32 Release 2"
1007 depends on SYS_HAS_CPU_MIPS32_R2
1009 select CPU_HAS_PREFETCH
1010 select CPU_SUPPORTS_32BIT_KERNEL
1011 select CPU_SUPPORTS_HIGHMEM
1013 Choose this option to build a kernel for release 2 or later of the
1014 MIPS32 architecture. Most modern embedded systems with a 32-bit
1015 MIPS processor are based on a MIPS32 processor. If you know the
1016 specific type of processor in your system, choose those that one
1017 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1019 config CPU_MIPS64_R1
1020 bool "MIPS64 Release 1"
1021 depends on SYS_HAS_CPU_MIPS64_R1
1023 select CPU_HAS_PREFETCH
1024 select CPU_SUPPORTS_32BIT_KERNEL
1025 select CPU_SUPPORTS_64BIT_KERNEL
1026 select CPU_SUPPORTS_HIGHMEM
1028 Choose this option to build a kernel for release 1 or later of the
1029 MIPS64 architecture. Many modern embedded systems with a 64-bit
1030 MIPS processor are based on a MIPS64 processor. If you know the
1031 specific type of processor in your system, choose those that one
1032 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1033 Release 2 of the MIPS64 architecture is available since several
1034 years so chances are you even have a MIPS64 Release 2 processor
1035 in which case you should choose CPU_MIPS64_R2 instead for better
1038 config CPU_MIPS64_R2
1039 bool "MIPS64 Release 2"
1040 depends on SYS_HAS_CPU_MIPS64_R2
1042 select CPU_HAS_PREFETCH
1043 select CPU_SUPPORTS_32BIT_KERNEL
1044 select CPU_SUPPORTS_64BIT_KERNEL
1045 select CPU_SUPPORTS_HIGHMEM
1047 Choose this option to build a kernel for release 2 or later of the
1048 MIPS64 architecture. Many modern embedded systems with a 64-bit
1049 MIPS processor are based on a MIPS64 processor. If you know the
1050 specific type of processor in your system, choose those that one
1051 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1055 depends on SYS_HAS_CPU_R3000
1057 select CPU_SUPPORTS_32BIT_KERNEL
1058 select CPU_SUPPORTS_HIGHMEM
1060 Please make sure to pick the right CPU type. Linux/MIPS is not
1061 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1062 *not* work on R4000 machines and vice versa. However, since most
1063 of the supported machines have an R4000 (or similar) CPU, R4x00
1064 might be a safe bet. If the resulting kernel does not work,
1065 try to recompile with R3000.
1069 depends on SYS_HAS_CPU_TX39XX
1070 select CPU_SUPPORTS_32BIT_KERNEL
1074 depends on SYS_HAS_CPU_VR41XX
1075 select CPU_SUPPORTS_32BIT_KERNEL
1076 select CPU_SUPPORTS_64BIT_KERNEL
1078 The options selects support for the NEC VR4100 series of processors.
1079 Only choose this option if you have one of these processors as a
1080 kernel built with this option will not run on any other type of
1081 processor or vice versa.
1085 depends on SYS_HAS_CPU_R4300
1087 select CPU_SUPPORTS_32BIT_KERNEL
1088 select CPU_SUPPORTS_64BIT_KERNEL
1090 MIPS Technologies R4300-series processors.
1094 depends on SYS_HAS_CPU_R4X00
1096 select CPU_SUPPORTS_32BIT_KERNEL
1097 select CPU_SUPPORTS_64BIT_KERNEL
1099 MIPS Technologies R4000-series processors other than 4300, including
1100 the R4000, R4400, R4600, and 4700.
1104 depends on SYS_HAS_CPU_TX49XX
1106 select CPU_HAS_PREFETCH
1107 select CPU_SUPPORTS_32BIT_KERNEL
1108 select CPU_SUPPORTS_64BIT_KERNEL
1112 depends on SYS_HAS_CPU_R5000
1114 select CPU_SUPPORTS_32BIT_KERNEL
1115 select CPU_SUPPORTS_64BIT_KERNEL
1117 MIPS Technologies R5000-series processors other than the Nevada.
1121 depends on SYS_HAS_CPU_R5432
1123 select CPU_SUPPORTS_32BIT_KERNEL
1124 select CPU_SUPPORTS_64BIT_KERNEL
1128 depends on EXPERIMENTAL
1130 depends on SYS_HAS_CPU_R6000
1131 select CPU_SUPPORTS_32BIT_KERNEL
1133 MIPS Technologies R6000 and R6000A series processors. Note these
1134 processors are extremely rare and the support for them is incomplete.
1138 depends on SYS_HAS_CPU_NEVADA
1140 select CPU_SUPPORTS_32BIT_KERNEL
1141 select CPU_SUPPORTS_64BIT_KERNEL
1143 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1147 depends on EXPERIMENTAL
1148 depends on SYS_HAS_CPU_R8000
1150 select CPU_HAS_PREFETCH
1151 select CPU_SUPPORTS_64BIT_KERNEL
1153 MIPS Technologies R8000 processors. Note these processors are
1154 uncommon and the support for them is incomplete.
1158 depends on SYS_HAS_CPU_R10000
1160 select CPU_HAS_PREFETCH
1161 select CPU_SUPPORTS_32BIT_KERNEL
1162 select CPU_SUPPORTS_64BIT_KERNEL
1163 select CPU_SUPPORTS_HIGHMEM
1165 MIPS Technologies R10000-series processors.
1169 depends on SYS_HAS_CPU_RM7000
1171 select CPU_HAS_PREFETCH
1172 select CPU_SUPPORTS_32BIT_KERNEL
1173 select CPU_SUPPORTS_64BIT_KERNEL
1174 select CPU_SUPPORTS_HIGHMEM
1178 depends on SYS_HAS_CPU_RM9000
1180 select CPU_HAS_PREFETCH
1181 select CPU_SUPPORTS_32BIT_KERNEL
1182 select CPU_SUPPORTS_64BIT_KERNEL
1183 select CPU_SUPPORTS_HIGHMEM
1184 select WEAK_ORDERING
1188 depends on SYS_HAS_CPU_SB1
1190 select CPU_SUPPORTS_32BIT_KERNEL
1191 select CPU_SUPPORTS_64BIT_KERNEL
1192 select CPU_SUPPORTS_HIGHMEM
1193 select WEAK_ORDERING
1197 config SYS_HAS_CPU_LOONGSON2
1200 config SYS_HAS_CPU_MIPS32_R1
1203 config SYS_HAS_CPU_MIPS32_R2
1206 config SYS_HAS_CPU_MIPS64_R1
1209 config SYS_HAS_CPU_MIPS64_R2
1212 config SYS_HAS_CPU_R3000
1215 config SYS_HAS_CPU_TX39XX
1218 config SYS_HAS_CPU_VR41XX
1221 config SYS_HAS_CPU_R4300
1224 config SYS_HAS_CPU_R4X00
1227 config SYS_HAS_CPU_TX49XX
1230 config SYS_HAS_CPU_R5000
1233 config SYS_HAS_CPU_R5432
1236 config SYS_HAS_CPU_R6000
1239 config SYS_HAS_CPU_NEVADA
1242 config SYS_HAS_CPU_R8000
1245 config SYS_HAS_CPU_R10000
1248 config SYS_HAS_CPU_RM7000
1251 config SYS_HAS_CPU_RM9000
1254 config SYS_HAS_CPU_SB1
1258 # CPU may reorder R->R, R->W, W->R, W->W
1259 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1261 config WEAK_ORDERING
1265 # CPU may reorder reads and writes beyond LL/SC
1266 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1268 config WEAK_REORDERING_BEYOND_LLSC
1273 # These two indicate any level of the MIPS32 and MIPS64 architecture
1277 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1281 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1284 # These two indicate the revision of the architecture, either Release 1 or Release 2
1288 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1292 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1294 config SYS_SUPPORTS_32BIT_KERNEL
1296 config SYS_SUPPORTS_64BIT_KERNEL
1298 config CPU_SUPPORTS_32BIT_KERNEL
1300 config CPU_SUPPORTS_64BIT_KERNEL
1304 # Set to y for ptrace access to watch registers.
1306 config HARDWARE_WATCHPOINTS
1308 default y if CPU_MIPS32 || CPU_MIPS64
1314 prompt "Kernel code model"
1316 You should only select this option if you have a workload that
1317 actually benefits from 64-bit processing or if your machine has
1318 large memory. You will only be presented a single option in this
1319 menu if your system does not support both 32-bit and 64-bit kernels.
1322 bool "32-bit kernel"
1323 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1326 Select this option if you want to build a 32-bit kernel.
1328 bool "64-bit kernel"
1329 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1331 Select this option if you want to build a 64-bit kernel.
1336 prompt "Kernel page size"
1337 default PAGE_SIZE_4KB
1339 config PAGE_SIZE_4KB
1342 This option select the standard 4kB Linux page size. On some
1343 R3000-family processors this is the only available page size. Using
1344 4kB page size will minimize memory consumption and is therefore
1345 recommended for low memory systems.
1347 config PAGE_SIZE_8KB
1349 depends on EXPERIMENTAL && CPU_R8000
1351 Using 8kB page size will result in higher performance kernel at
1352 the price of higher memory consumption. This option is available
1353 only on the R8000 processor. Not that at the time of this writing
1354 this option is still high experimental; there are also issues with
1355 compatibility of user applications.
1357 config PAGE_SIZE_16KB
1359 depends on !CPU_R3000 && !CPU_TX39XX
1361 Using 16kB page size will result in higher performance kernel at
1362 the price of higher memory consumption. This option is available on
1363 all non-R3000 family processors. Note that you will need a suitable
1364 Linux distribution to support this.
1366 config PAGE_SIZE_64KB
1368 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1370 Using 64kB page size will result in higher performance kernel at
1371 the price of higher memory consumption. This option is available on
1372 all non-R3000 family processor. Not that at the time of this
1373 writing this option is still high experimental.
1380 config IP22_CPU_SCACHE
1385 # Support for a MIPS32 / MIPS64 style S-caches
1387 config MIPS_CPU_SCACHE
1391 config R5000_CPU_SCACHE
1395 config RM7000_CPU_SCACHE
1399 config SIBYTE_DMA_PAGEOPS
1400 bool "Use DMA to clear/copy pages"
1403 Instead of using the CPU to zero and copy pages, use a Data Mover
1404 channel. These DMA channels are otherwise unused by the standard
1405 SiByte Linux port. Seems to give a small performance benefit.
1407 config CPU_HAS_PREFETCH
1411 prompt "MIPS MT options"
1413 config MIPS_MT_DISABLED
1414 bool "Disable multithreading support."
1416 Use this option if your workload can't take advantage of
1417 MIPS hardware multithreading support. On systems that don't have
1418 the option of an MT-enabled processor this option will be the only
1419 option in this menu.
1422 bool "Use 1 TC on each available VPE for SMP"
1423 depends on SYS_SUPPORTS_MULTITHREADING
1424 select CPU_MIPSR2_IRQ_VI
1425 select CPU_MIPSR2_IRQ_EI
1427 select NR_CPUS_DEFAULT_2
1429 select SYS_SUPPORTS_SCHED_SMT if SMP
1430 select SYS_SUPPORTS_SMP
1433 This is a kernel model which is also known a VSMP or lately
1434 has been marketesed into SMVP.
1437 bool "SMTC: Use all TCs on all VPEs for SMP"
1438 depends on CPU_MIPS32_R2
1439 #depends on CPU_MIPS64_R2 # once there is hardware ...
1440 depends on SYS_SUPPORTS_MULTITHREADING
1441 select CPU_MIPSR2_IRQ_VI
1442 select CPU_MIPSR2_IRQ_EI
1444 select NR_CPUS_DEFAULT_8
1446 select SYS_SUPPORTS_SMP
1449 This is a kernel model which is known a SMTC or lately has been
1450 marketesed into SMVP.
1458 bool "SMT (multithreading) scheduler support"
1459 depends on SYS_SUPPORTS_SCHED_SMT
1462 SMT scheduler support improves the CPU scheduler's decision making
1463 when dealing with MIPS MT enabled cores at a cost of slightly
1464 increased overhead in some places. If unsure say N here.
1466 config SYS_SUPPORTS_SCHED_SMT
1470 config SYS_SUPPORTS_MULTITHREADING
1473 config MIPS_MT_FPAFF
1474 bool "Dynamic FPU affinity for FP-intensive threads"
1476 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1478 config MIPS_VPE_LOADER
1479 bool "VPE loader support."
1480 depends on SYS_SUPPORTS_MULTITHREADING
1481 select CPU_MIPSR2_IRQ_VI
1482 select CPU_MIPSR2_IRQ_EI
1485 Includes a loader for loading an elf relocatable object
1486 onto another VPE and running it.
1488 config MIPS_MT_SMTC_IM_BACKSTOP
1489 bool "Use per-TC register bits as backstop for inhibited IM bits"
1490 depends on MIPS_MT_SMTC
1493 To support multiple TC microthreads acting as "CPUs" within
1494 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1495 during interrupt handling. To support legacy drivers and interrupt
1496 controller management code, SMTC has a "backstop" to track and
1497 if necessary restore the interrupt mask. This has some performance
1498 impact on interrupt service overhead.
1500 config MIPS_MT_SMTC_IRQAFF
1501 bool "Support IRQ affinity API"
1502 depends on MIPS_MT_SMTC
1505 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1506 for SMTC Linux kernel. Requires platform support, of which
1507 an example can be found in the MIPS kernel i8259 and Malta
1508 platform code. Adds some overhead to interrupt dispatch, and
1509 should be used only if you know what you are doing.
1511 config MIPS_VPE_LOADER_TOM
1512 bool "Load VPE program into memory hidden from linux"
1513 depends on MIPS_VPE_LOADER
1516 The loader can use memory that is present but has been hidden from
1517 Linux using the kernel command line option "mem=xxMB". It's up to
1518 you to ensure the amount you put in the option and the space your
1519 program requires is less or equal to the amount physically present.
1521 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1522 config MIPS_VPE_APSP_API
1523 bool "Enable support for AP/SP API (RTLX)"
1524 depends on MIPS_VPE_LOADER
1527 config MIPS_APSP_KSPD
1529 depends on MIPS_VPE_APSP_API
1532 KSPD is a kernel daemon that accepts syscall requests from the SP
1533 side, actions them and returns the results. It also handles the
1534 "exit" syscall notifying other kernel modules the SP program is
1535 exiting. You probably want to say yes here.
1538 bool "MIPS CMP framework support"
1539 depends on SYS_SUPPORTS_MIPS_CMP
1540 select SYNC_R4K if BROKEN
1541 select SYS_SUPPORTS_SMP
1542 select SYS_SUPPORTS_SCHED_SMT if SMP
1543 select WEAK_ORDERING
1546 This is a placeholder option for the GCMP work. It will need to
1547 be handled differently...
1549 config SB1_PASS_1_WORKAROUNDS
1551 depends on CPU_SB1_PASS_1
1554 config SB1_PASS_2_WORKAROUNDS
1556 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1559 config SB1_PASS_2_1_WORKAROUNDS
1561 depends on CPU_SB1 && CPU_SB1_PASS_2
1564 config 64BIT_PHYS_ADDR
1570 config CPU_HAS_SMARTMIPS
1571 depends on SYS_SUPPORTS_SMARTMIPS
1572 bool "Support for the SmartMIPS ASE"
1574 SmartMIPS is a extension of the MIPS32 architecture aimed at
1575 increased security at both hardware and software level for
1576 smartcards. Enabling this option will allow proper use of the
1577 SmartMIPS instructions by Linux applications. However a kernel with
1578 this option will not work on a MIPS core without SmartMIPS core. If
1579 you don't know you probably don't have SmartMIPS and should say N
1586 # Vectored interrupt mode is an R2 feature
1588 config CPU_MIPSR2_IRQ_VI
1592 # Extended interrupt mode is an R2 feature
1594 config CPU_MIPSR2_IRQ_EI
1599 depends on !CPU_R3000
1602 config GENERIC_CLOCKEVENTS_BROADCAST
1608 config CPU_DADDI_WORKAROUNDS
1611 config CPU_R4000_WORKAROUNDS
1613 select CPU_R4400_WORKAROUNDS
1615 config CPU_R4400_WORKAROUNDS
1619 # Use the generic interrupt handling code in kernel/irq/:
1621 config GENERIC_HARDIRQS
1625 config GENERIC_IRQ_PROBE
1633 # - Highmem only makes sense for the 32-bit kernel.
1634 # - The current highmem code will only work properly on physically indexed
1635 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1636 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1637 # moment we protect the user and offer the highmem option only on machines
1638 # where it's known to be safe. This will not offer highmem on a few systems
1639 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1640 # indexed CPUs but we're playing safe.
1641 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1642 # know they might have memory configurations that could make use of highmem
1646 bool "High Memory Support"
1647 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1649 config CPU_SUPPORTS_HIGHMEM
1652 config SYS_SUPPORTS_HIGHMEM
1655 config SYS_SUPPORTS_SMARTMIPS
1658 config ARCH_FLATMEM_ENABLE
1662 config ARCH_DISCONTIGMEM_ENABLE
1664 default y if SGI_IP27
1666 Say Y to support efficient handling of discontiguous physical memory,
1667 for architectures which are either NUMA (Non-Uniform Memory Access)
1668 or have huge holes in the physical address space for other reasons.
1669 See <file:Documentation/vm/numa> for more.
1671 config ARCH_POPULATES_NODE_MAP
1674 config ARCH_SPARSEMEM_ENABLE
1676 select SPARSEMEM_STATIC
1680 depends on SYS_SUPPORTS_NUMA
1682 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1683 Access). This option improves performance on systems with more
1684 than two nodes; on two node systems it is generally better to
1685 leave it disabled; on single node systems disable this option
1688 config SYS_SUPPORTS_NUMA
1694 depends on NEED_MULTIPLE_NODES
1699 bool "Multi-Processing support"
1700 depends on SYS_SUPPORTS_SMP
1702 select USE_GENERIC_SMP_HELPERS
1704 This enables support for systems with more than one CPU. If you have
1705 a system with only one CPU, like most personal computers, say N. If
1706 you have a system with more than one CPU, say Y.
1708 If you say N here, the kernel will run on single and multiprocessor
1709 machines, but will use only one CPU of a multiprocessor machine. If
1710 you say Y here, the kernel will run on many, but not all,
1711 singleprocessor machines. On a singleprocessor machine, the kernel
1712 will run faster if you say N here.
1714 People using multiprocessor machines who say Y here should also say
1715 Y to "Enhanced Real Time Clock Support", below.
1717 See also the SMP-HOWTO available at
1718 <http://www.tldp.org/docs.html#howto>.
1720 If you don't know what to do here, say N.
1725 config SYS_SUPPORTS_MIPS_CMP
1728 config SYS_SUPPORTS_SMP
1731 config NR_CPUS_DEFAULT_1
1734 config NR_CPUS_DEFAULT_2
1737 config NR_CPUS_DEFAULT_4
1740 config NR_CPUS_DEFAULT_8
1743 config NR_CPUS_DEFAULT_16
1746 config NR_CPUS_DEFAULT_32
1749 config NR_CPUS_DEFAULT_64
1753 int "Maximum number of CPUs (2-64)"
1754 range 1 64 if NR_CPUS_DEFAULT_1
1756 default "1" if NR_CPUS_DEFAULT_1
1757 default "2" if NR_CPUS_DEFAULT_2
1758 default "4" if NR_CPUS_DEFAULT_4
1759 default "8" if NR_CPUS_DEFAULT_8
1760 default "16" if NR_CPUS_DEFAULT_16
1761 default "32" if NR_CPUS_DEFAULT_32
1762 default "64" if NR_CPUS_DEFAULT_64
1764 This allows you to specify the maximum number of CPUs which this
1765 kernel will support. The maximum supported value is 32 for 32-bit
1766 kernel and 64 for 64-bit kernels; the minimum value which makes
1767 sense is 1 for Qemu (useful only for kernel debugging purposes)
1768 and 2 for all others.
1770 This is purely to save memory - each supported CPU adds
1771 approximately eight kilobytes to the kernel image. For best
1772 performance should round up your number of processors to the next
1775 source "kernel/time/Kconfig"
1778 # Timer Interrupt Frequency Configuration
1782 prompt "Timer frequency"
1785 Allows the configuration of the timer frequency.
1788 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1791 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1794 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1797 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1800 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1803 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1806 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1810 config SYS_SUPPORTS_48HZ
1813 config SYS_SUPPORTS_100HZ
1816 config SYS_SUPPORTS_128HZ
1819 config SYS_SUPPORTS_250HZ
1822 config SYS_SUPPORTS_256HZ
1825 config SYS_SUPPORTS_1000HZ
1828 config SYS_SUPPORTS_1024HZ
1831 config SYS_SUPPORTS_ARBIT_HZ
1833 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1834 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1835 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1836 !SYS_SUPPORTS_1024HZ
1841 default 100 if HZ_100
1842 default 128 if HZ_128
1843 default 250 if HZ_250
1844 default 256 if HZ_256
1845 default 1000 if HZ_1000
1846 default 1024 if HZ_1024
1848 source "kernel/Kconfig.preempt"
1850 config MIPS_INSANE_LARGE
1851 bool "Support for large 64-bit configurations"
1852 depends on CPU_R10000 && 64BIT
1854 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1855 previous 64-bit processors which only supported 40 bit / 1TB. If you
1856 need processes of more than 1TB virtual address space, say Y here.
1857 This will result in additional memory usage, so it is not
1858 recommended for normal users.
1861 bool "Kexec system call (EXPERIMENTAL)"
1862 depends on EXPERIMENTAL
1864 kexec is a system call that implements the ability to shutdown your
1865 current kernel, and to start another kernel. It is like a reboot
1866 but it is independent of the system firmware. And like a reboot
1867 you can start any kernel with it, not just Linux.
1869 The name comes from the similarity to the exec system call.
1871 It is an ongoing process to be certain the hardware in a machine
1872 is properly shutdown, so do not be surprised if this code does not
1873 initially work for you. It may help to enable device hotplugging
1874 support. As of this writing the exact hardware interface is
1875 strongly in flux, so no good recommendation can be made.
1878 bool "Enable seccomp to safely compute untrusted bytecode"
1882 This kernel feature is useful for number crunching applications
1883 that may need to compute untrusted bytecode during their
1884 execution. By using pipes or other transports made available to
1885 the process as file descriptors supporting the read/write
1886 syscalls, it's possible to isolate those applications in
1887 their own address space using seccomp. Once seccomp is
1888 enabled via /proc/<pid>/seccomp, it cannot be disabled
1889 and the task is only allowed to execute a few safe syscalls
1890 defined by each seccomp mode.
1892 If unsure, say Y. Only embedded should say N here.
1896 config RWSEM_GENERIC_SPINLOCK
1900 config LOCKDEP_SUPPORT
1904 config STACKTRACE_SUPPORT
1908 source "init/Kconfig"
1910 config PROBE_INITRD_HEADER
1911 bool "Probe initrd header created by addinitrd"
1912 depends on BLK_DEV_INITRD
1914 Probe initrd header at the last page of kernel image.
1915 Say Y here if you are using arch/mips/boot/addinitrd.c to
1916 add initrd or initramfs image to the kernel image.
1919 source "kernel/Kconfig.freezer"
1921 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1929 bool "Support for PCI controller"
1930 depends on HW_HAS_PCI
1933 Find out whether you have a PCI motherboard. PCI is the name of a
1934 bus system, i.e. the way the CPU talks to the other stuff inside
1935 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1941 source "drivers/pci/Kconfig"
1944 # ISA support is now enabled via select. Too many systems still have the one
1945 # or other ISA chip on the board that users don't know about so don't expect
1946 # users to choose the right thing ...
1953 depends on HW_HAS_EISA
1955 select GENERIC_ISA_DMA
1957 The Extended Industry Standard Architecture (EISA) bus was
1958 developed as an open alternative to the IBM MicroChannel bus.
1960 The EISA bus provided some of the features of the IBM MicroChannel
1961 bus while maintaining backward compatibility with cards made for
1962 the older ISA bus. The EISA bus saw limited use between 1988 and
1963 1995 when it was made obsolete by the PCI bus.
1965 Say Y here if you are building a kernel for an EISA-based machine.
1969 source "drivers/eisa/Kconfig"
1972 bool "TURBOchannel support"
1973 depends on MACH_DECSTATION
1975 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1976 processors. Documentation on writing device drivers for TurboChannel
1978 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1981 # bool "Access.Bus support"
1994 source "drivers/pcmcia/Kconfig"
1996 source "drivers/pci/hotplug/Kconfig"
2000 menu "Executable file formats"
2002 source "fs/Kconfig.binfmt"
2007 config MIPS32_COMPAT
2008 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2011 Select this option if you want Linux/MIPS 32-bit binary
2012 compatibility. Since all software available for Linux/MIPS is
2013 currently 32-bit you should say Y here.
2017 depends on MIPS32_COMPAT
2020 config SYSVIPC_COMPAT
2022 depends on COMPAT && SYSVIPC
2026 bool "Kernel support for o32 binaries"
2027 depends on MIPS32_COMPAT
2029 Select this option if you want to run o32 binaries. These are pure
2030 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2031 existing binaries are in this format.
2036 bool "Kernel support for n32 binaries"
2037 depends on MIPS32_COMPAT
2039 Select this option if you want to run n32 binaries. These are
2040 64-bit binaries using 32-bit quantities for addressing and certain
2041 data that would normally be 64-bit. They are used in special
2048 default y if MIPS32_O32 || MIPS32_N32
2052 menu "Power management options"
2054 config ARCH_SUSPEND_POSSIBLE
2058 source "kernel/power/Kconfig"
2062 source "net/Kconfig"
2064 source "drivers/Kconfig"
2068 source "arch/mips/Kconfig.debug"
2070 source "security/Kconfig"
2072 source "crypto/Kconfig"
2074 source "lib/Kconfig"