| blob | 5526faabfc21433cf3e3fa679c9fcf802646c96c |
1 config MIPS
2 bool
3 default y
4 select HAVE_GENERIC_DMA_COHERENT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_ARCH_KGDB
8 select HAVE_FUNCTION_TRACER
9 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
10 select HAVE_DYNAMIC_FTRACE
11 select HAVE_FTRACE_MCOUNT_RECORD
12 select HAVE_FUNCTION_GRAPH_TRACER
13 select HAVE_KPROBES
14 select HAVE_KRETPROBES
15 select RTC_LIB if !MACH_LOONGSON
16 select GENERIC_ATOMIC64 if !64BIT
18 mainmenu "Linux/MIPS Kernel Configuration"
20 menu "Machine selection"
22 config ZONE_DMA
23 bool
25 choice
26 prompt "System type"
27 default SGI_IP22
29 config MIPS_ALCHEMY
30 bool "Alchemy processor based machines"
31 select 64BIT_PHYS_ADDR
32 select CEVT_R4K_LIB
33 select CSRC_R4K_LIB
34 select IRQ_CPU
35 select SYS_HAS_CPU_MIPS32_R1
36 select SYS_SUPPORTS_32BIT_KERNEL
37 select SYS_SUPPORTS_APM_EMULATION
38 select GENERIC_GPIO
39 select ARCH_WANT_OPTIONAL_GPIOLIB
40 select SYS_SUPPORTS_ZBOOT
42 config AR7
43 bool "Texas Instruments AR7"
44 select BOOT_ELF32
45 select DMA_NONCOHERENT
46 select CEVT_R4K
47 select CSRC_R4K
48 select IRQ_CPU
49 select NO_EXCEPT_FILL
50 select SWAP_IO_SPACE
51 select SYS_HAS_CPU_MIPS32_R1
52 select SYS_HAS_EARLY_PRINTK
53 select SYS_SUPPORTS_32BIT_KERNEL
54 select SYS_SUPPORTS_LITTLE_ENDIAN
55 select SYS_SUPPORTS_ZBOOT_UART16550
56 select ARCH_REQUIRE_GPIOLIB
57 select GCD
58 select VLYNQ
59 help
60 Support for the Texas Instruments AR7 System-on-a-Chip
61 family: TNETD7100, 7200 and 7300.
63 config BCM47XX
64 bool "Broadcom BCM47XX based boards"
65 select CEVT_R4K
66 select CSRC_R4K
67 select DMA_NONCOHERENT
68 select HW_HAS_PCI
69 select IRQ_CPU
70 select SYS_HAS_CPU_MIPS32_R1
71 select SYS_SUPPORTS_32BIT_KERNEL
72 select SYS_SUPPORTS_LITTLE_ENDIAN
73 select SSB
74 select SSB_DRIVER_MIPS
75 select SSB_DRIVER_EXTIF
76 select SSB_EMBEDDED
77 select SSB_B43_PCI_BRIDGE if PCI
78 select SSB_PCICORE_HOSTMODE if PCI
79 select GENERIC_GPIO
80 select SYS_HAS_EARLY_PRINTK
81 select CFE
82 help
83 Support for BCM47XX based boards
85 config BCM63XX
86 bool "Broadcom BCM63XX based boards"
87 select CEVT_R4K
88 select CSRC_R4K
89 select DMA_NONCOHERENT
90 select IRQ_CPU
91 select SYS_HAS_CPU_MIPS32_R1
92 select SYS_SUPPORTS_32BIT_KERNEL
93 select SYS_SUPPORTS_BIG_ENDIAN
94 select SYS_HAS_EARLY_PRINTK
95 select SWAP_IO_SPACE
96 select ARCH_REQUIRE_GPIOLIB
97 help
98 Support for BCM63XX based boards
100 config MIPS_COBALT
101 bool "Cobalt Server"
102 select CEVT_R4K
103 select CSRC_R4K
104 select CEVT_GT641XX
105 select DMA_NONCOHERENT
106 select HW_HAS_PCI
107 select I8253
108 select I8259
109 select IRQ_CPU
110 select IRQ_GT641XX
111 select PCI_GT64XXX_PCI0
112 select PCI
113 select SYS_HAS_CPU_NEVADA
114 select SYS_HAS_EARLY_PRINTK
115 select SYS_SUPPORTS_32BIT_KERNEL
116 select SYS_SUPPORTS_64BIT_KERNEL
117 select SYS_SUPPORTS_LITTLE_ENDIAN
119 config MACH_DECSTATION
120 bool "DECstations"
121 select BOOT_ELF32
122 select CEVT_DS1287
123 select CEVT_R4K
124 select CSRC_IOASIC
125 select CSRC_R4K
126 select CPU_DADDI_WORKAROUNDS if 64BIT
127 select CPU_R4000_WORKAROUNDS if 64BIT
128 select CPU_R4400_WORKAROUNDS if 64BIT
129 select DMA_NONCOHERENT
130 select NO_IOPORT
131 select IRQ_CPU
132 select SYS_HAS_CPU_R3000
133 select SYS_HAS_CPU_R4X00
134 select SYS_SUPPORTS_32BIT_KERNEL
135 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
136 select SYS_SUPPORTS_LITTLE_ENDIAN
137 select SYS_SUPPORTS_128HZ
138 select SYS_SUPPORTS_256HZ
139 select SYS_SUPPORTS_1024HZ
140 help
141 This enables support for DEC's MIPS based workstations. For details
142 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
143 DECstation porting pages on <http://decstation.unix-ag.org/>.
145 If you have one of the following DECstation Models you definitely
146 want to choose R4xx0 for the CPU Type:
148 DECstation 5000/50
149 DECstation 5000/150
150 DECstation 5000/260
151 DECsystem 5900/260
153 otherwise choose R3000.
155 config MACH_JAZZ
156 bool "Jazz family of machines"
157 select ARC
158 select ARC32
159 select ARCH_MAY_HAVE_PC_FDC
160 select CEVT_R4K
161 select CSRC_R4K
162 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
163 select GENERIC_ISA_DMA
164 select IRQ_CPU
165 select I8253
166 select I8259
167 select ISA
168 select SYS_HAS_CPU_R4X00
169 select SYS_SUPPORTS_32BIT_KERNEL
170 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
171 select SYS_SUPPORTS_100HZ
172 help
173 This a family of machines based on the MIPS R4030 chipset which was
174 used by several vendors to build RISC/os and Windows NT workstations.
175 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
176 Olivetti M700-10 workstations.
178 config MACH_JZ4740
179 bool "Ingenic JZ4740 based machines"
180 select SYS_HAS_CPU_MIPS32_R1
181 select SYS_SUPPORTS_32BIT_KERNEL
182 select SYS_SUPPORTS_LITTLE_ENDIAN
183 select DMA_NONCOHERENT
184 select IRQ_CPU
185 select GENERIC_GPIO
186 select ARCH_REQUIRE_GPIOLIB
187 select SYS_HAS_EARLY_PRINTK
188 select HAVE_PWM
190 config LASAT
191 bool "LASAT Networks platforms"
192 select CEVT_R4K
193 select CSRC_R4K
194 select DMA_NONCOHERENT
195 select SYS_HAS_EARLY_PRINTK
196 select HW_HAS_PCI
197 select IRQ_CPU
198 select PCI_GT64XXX_PCI0
199 select MIPS_NILE4
200 select R5000_CPU_SCACHE
201 select SYS_HAS_CPU_R5000
202 select SYS_SUPPORTS_32BIT_KERNEL
203 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
204 select SYS_SUPPORTS_LITTLE_ENDIAN
206 config MACH_LOONGSON
207 bool "Loongson family of machines"
208 select SYS_SUPPORTS_ZBOOT
209 help
210 This enables the support of Loongson family of machines.
212 Loongson is a family of general-purpose MIPS-compatible CPUs.
213 developed at Institute of Computing Technology (ICT),
214 Chinese Academy of Sciences (CAS) in the People's Republic
215 of China. The chief architect is Professor Weiwu Hu.
217 config MIPS_MALTA
218 bool "MIPS Malta board"
219 select ARCH_MAY_HAVE_PC_FDC
220 select BOOT_ELF32
221 select BOOT_RAW
222 select CEVT_R4K
223 select CSRC_R4K
224 select DMA_NONCOHERENT
225 select GENERIC_ISA_DMA
226 select IRQ_CPU
227 select IRQ_GIC
228 select HW_HAS_PCI
229 select I8253
230 select I8259
231 select MIPS_BOARDS_GEN
232 select MIPS_BONITO64
233 select MIPS_CPU_SCACHE
234 select PCI_GT64XXX_PCI0
235 select MIPS_MSC
236 select SWAP_IO_SPACE
237 select SYS_HAS_CPU_MIPS32_R1
238 select SYS_HAS_CPU_MIPS32_R2
239 select SYS_HAS_CPU_MIPS64_R1
240 select SYS_HAS_CPU_NEVADA
241 select SYS_HAS_CPU_RM7000
242 select SYS_HAS_EARLY_PRINTK
243 select SYS_SUPPORTS_32BIT_KERNEL
244 select SYS_SUPPORTS_64BIT_KERNEL
245 select SYS_SUPPORTS_BIG_ENDIAN
246 select SYS_SUPPORTS_LITTLE_ENDIAN
247 select SYS_SUPPORTS_MIPS_CMP
248 select SYS_SUPPORTS_MULTITHREADING
249 select SYS_SUPPORTS_SMARTMIPS
250 select SYS_SUPPORTS_ZBOOT
251 help
252 This enables support for the MIPS Technologies Malta evaluation
253 board.
255 config MIPS_SIM
256 bool 'MIPS simulator (MIPSsim)'
257 select CEVT_R4K
258 select CSRC_R4K
259 select DMA_NONCOHERENT
260 select SYS_HAS_EARLY_PRINTK
261 select IRQ_CPU
262 select BOOT_RAW
263 select SYS_HAS_CPU_MIPS32_R1
264 select SYS_HAS_CPU_MIPS32_R2
265 select SYS_HAS_EARLY_PRINTK
266 select SYS_SUPPORTS_32BIT_KERNEL
267 select SYS_SUPPORTS_BIG_ENDIAN
268 select SYS_SUPPORTS_MULTITHREADING
269 select SYS_SUPPORTS_LITTLE_ENDIAN
270 help
271 This option enables support for MIPS Technologies MIPSsim software
272 emulator.
274 config NEC_MARKEINS
275 bool "NEC EMMA2RH Mark-eins board"
276 select SOC_EMMA2RH
277 select HW_HAS_PCI
278 help
279 This enables support for the NEC Electronics Mark-eins boards.
281 config MACH_VR41XX
282 bool "NEC VR4100 series based machines"
283 select CEVT_R4K
284 select CSRC_R4K
285 select SYS_HAS_CPU_VR41XX
286 select ARCH_REQUIRE_GPIOLIB
288 config NXP_STB220
289 bool "NXP STB220 board"
290 select SOC_PNX833X
291 help
292 Support for NXP Semiconductors STB220 Development Board.
294 config NXP_STB225
295 bool "NXP 225 board"
296 select SOC_PNX833X
297 select SOC_PNX8335
298 help
299 Support for NXP Semiconductors STB225 Development Board.
301 config PNX8550_JBS
302 bool "NXP PNX8550 based JBS board"
303 select PNX8550
304 select SYS_SUPPORTS_LITTLE_ENDIAN
306 config PNX8550_STB810
307 bool "NXP PNX8550 based STB810 board"
308 select PNX8550
309 select SYS_SUPPORTS_LITTLE_ENDIAN
311 config PMC_MSP
312 bool "PMC-Sierra MSP chipsets"
313 depends on EXPERIMENTAL
314 select DMA_NONCOHERENT
315 select SWAP_IO_SPACE
316 select NO_EXCEPT_FILL
317 select BOOT_RAW
318 select SYS_HAS_CPU_MIPS32_R1
319 select SYS_HAS_CPU_MIPS32_R2
320 select SYS_SUPPORTS_32BIT_KERNEL
321 select SYS_SUPPORTS_BIG_ENDIAN
322 select IRQ_CPU
323 select SERIAL_8250
324 select SERIAL_8250_CONSOLE
325 help
326 This adds support for the PMC-Sierra family of Multi-Service
327 Processor System-On-A-Chips. These parts include a number
328 of integrated peripherals, interfaces and DSPs in addition to
329 a variety of MIPS cores.
331 config PMC_YOSEMITE
332 bool "PMC-Sierra Yosemite eval board"
333 select CEVT_R4K
334 select CSRC_R4K
335 select DMA_COHERENT
336 select HW_HAS_PCI
337 select IRQ_CPU
338 select IRQ_CPU_RM7K
339 select IRQ_CPU_RM9K
340 select SWAP_IO_SPACE
341 select SYS_HAS_CPU_RM9000
342 select SYS_HAS_EARLY_PRINTK
343 select SYS_SUPPORTS_32BIT_KERNEL
344 select SYS_SUPPORTS_64BIT_KERNEL
345 select SYS_SUPPORTS_BIG_ENDIAN
346 select SYS_SUPPORTS_HIGHMEM
347 select SYS_SUPPORTS_SMP
348 help
349 Yosemite is an evaluation board for the RM9000x2 processor
350 manufactured by PMC-Sierra.
352 config POWERTV
353 bool "Cisco PowerTV"
354 select BOOT_ELF32
355 select CEVT_R4K
356 select CPU_MIPSR2_IRQ_VI
357 select CPU_MIPSR2_IRQ_EI
358 select CSRC_POWERTV
359 select DMA_NONCOHERENT
360 select HW_HAS_PCI
361 select SYS_HAS_EARLY_PRINTK
362 select SYS_HAS_CPU_MIPS32_R2
363 select SYS_SUPPORTS_32BIT_KERNEL
364 select SYS_SUPPORTS_BIG_ENDIAN
365 select SYS_SUPPORTS_HIGHMEM
366 select USB_OHCI_LITTLE_ENDIAN
367 help
368 This enables support for the Cisco PowerTV Platform.
370 config SGI_IP22
371 bool "SGI IP22 (Indy/Indigo2)"
372 select ARC
373 select ARC32
374 select BOOT_ELF32
375 select CEVT_R4K
376 select CSRC_R4K
377 select DEFAULT_SGI_PARTITION
378 select DMA_NONCOHERENT
379 select HW_HAS_EISA
380 select I8253
381 select I8259
382 select IP22_CPU_SCACHE
383 select IRQ_CPU
384 select GENERIC_ISA_DMA_SUPPORT_BROKEN
385 select SGI_HAS_I8042
386 select SGI_HAS_INDYDOG
387 select SGI_HAS_HAL2
388 select SGI_HAS_SEEQ
389 select SGI_HAS_WD93
390 select SGI_HAS_ZILOG
391 select SWAP_IO_SPACE
392 select SYS_HAS_CPU_R4X00
393 select SYS_HAS_CPU_R5000
394 #
395 # Disable EARLY_PRINTK for now since it leads to overwritten prom
396 # memory during early boot on some machines.
397 #
398 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
399 # for a more details discussion
400 #
401 # select SYS_HAS_EARLY_PRINTK
402 select SYS_SUPPORTS_32BIT_KERNEL
403 select SYS_SUPPORTS_64BIT_KERNEL
404 select SYS_SUPPORTS_BIG_ENDIAN
405 help
406 This are the SGI Indy, Challenge S and Indigo2, as well as certain
407 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
408 that runs on these, say Y here.
410 config SGI_IP27
411 bool "SGI IP27 (Origin200/2000)"
412 select ARC
413 select ARC64
414 select BOOT_ELF64
415 select DEFAULT_SGI_PARTITION
416 select DMA_COHERENT
417 select SYS_HAS_EARLY_PRINTK
418 select HW_HAS_PCI
419 select NR_CPUS_DEFAULT_64
420 select SYS_HAS_CPU_R10000
421 select SYS_SUPPORTS_64BIT_KERNEL
422 select SYS_SUPPORTS_BIG_ENDIAN
423 select SYS_SUPPORTS_NUMA
424 select SYS_SUPPORTS_SMP
425 help
426 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
427 workstations. To compile a Linux kernel that runs on these, say Y
428 here.
430 config SGI_IP28
431 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
432 depends on EXPERIMENTAL
433 select ARC
434 select ARC64
435 select BOOT_ELF64
436 select CEVT_R4K
437 select CSRC_R4K
438 select DEFAULT_SGI_PARTITION
439 select DMA_NONCOHERENT
440 select GENERIC_ISA_DMA_SUPPORT_BROKEN
441 select IRQ_CPU
442 select HW_HAS_EISA
443 select I8253
444 select I8259
445 select SGI_HAS_I8042
446 select SGI_HAS_INDYDOG
447 select SGI_HAS_HAL2
448 select SGI_HAS_SEEQ
449 select SGI_HAS_WD93
450 select SGI_HAS_ZILOG
451 select SWAP_IO_SPACE
452 select SYS_HAS_CPU_R10000
453 #
454 # Disable EARLY_PRINTK for now since it leads to overwritten prom
455 # memory during early boot on some machines.
456 #
457 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
458 # for a more details discussion
459 #
460 # select SYS_HAS_EARLY_PRINTK
461 select SYS_SUPPORTS_64BIT_KERNEL
462 select SYS_SUPPORTS_BIG_ENDIAN
463 help
464 This is the SGI Indigo2 with R10000 processor. To compile a Linux
465 kernel that runs on these, say Y here.
467 config SGI_IP32
468 bool "SGI IP32 (O2)"
469 select ARC
470 select ARC32
471 select BOOT_ELF32
472 select CEVT_R4K
473 select CSRC_R4K
474 select DMA_NONCOHERENT
475 select HW_HAS_PCI
476 select IRQ_CPU
477 select R5000_CPU_SCACHE
478 select RM7000_CPU_SCACHE
479 select SYS_HAS_CPU_R5000
480 select SYS_HAS_CPU_R10000 if BROKEN
481 select SYS_HAS_CPU_RM7000
482 select SYS_HAS_CPU_NEVADA
483 select SYS_SUPPORTS_64BIT_KERNEL
484 select SYS_SUPPORTS_BIG_ENDIAN
485 help
486 If you want this kernel to run on SGI O2 workstation, say Y here.
488 config SIBYTE_CRHINE
489 bool "Sibyte BCM91120C-CRhine"
490 depends on EXPERIMENTAL
491 select BOOT_ELF32
492 select DMA_COHERENT
493 select SIBYTE_BCM1120
494 select SWAP_IO_SPACE
495 select SYS_HAS_CPU_SB1
496 select SYS_SUPPORTS_BIG_ENDIAN
497 select SYS_SUPPORTS_LITTLE_ENDIAN
499 config SIBYTE_CARMEL
500 bool "Sibyte BCM91120x-Carmel"
501 depends on EXPERIMENTAL
502 select BOOT_ELF32
503 select DMA_COHERENT
504 select SIBYTE_BCM1120
505 select SWAP_IO_SPACE
506 select SYS_HAS_CPU_SB1
507 select SYS_SUPPORTS_BIG_ENDIAN
508 select SYS_SUPPORTS_LITTLE_ENDIAN
510 config SIBYTE_CRHONE
511 bool "Sibyte BCM91125C-CRhone"
512 depends on EXPERIMENTAL
513 select BOOT_ELF32
514 select DMA_COHERENT
515 select SIBYTE_BCM1125
516 select SWAP_IO_SPACE
517 select SYS_HAS_CPU_SB1
518 select SYS_SUPPORTS_BIG_ENDIAN
519 select SYS_SUPPORTS_HIGHMEM
520 select SYS_SUPPORTS_LITTLE_ENDIAN
522 config SIBYTE_RHONE
523 bool "Sibyte BCM91125E-Rhone"
524 depends on EXPERIMENTAL
525 select BOOT_ELF32
526 select DMA_COHERENT
527 select SIBYTE_BCM1125H
528 select SWAP_IO_SPACE
529 select SYS_HAS_CPU_SB1
530 select SYS_SUPPORTS_BIG_ENDIAN
531 select SYS_SUPPORTS_LITTLE_ENDIAN
533 config SIBYTE_SWARM
534 bool "Sibyte BCM91250A-SWARM"
535 select BOOT_ELF32
536 select DMA_COHERENT
537 select HAVE_PATA_PLATFORM
538 select NR_CPUS_DEFAULT_2
539 select SIBYTE_SB1250
540 select SWAP_IO_SPACE
541 select SYS_HAS_CPU_SB1
542 select SYS_SUPPORTS_BIG_ENDIAN
543 select SYS_SUPPORTS_HIGHMEM
544 select SYS_SUPPORTS_LITTLE_ENDIAN
545 select ZONE_DMA32 if 64BIT
547 config SIBYTE_LITTLESUR
548 bool "Sibyte BCM91250C2-LittleSur"
549 depends on EXPERIMENTAL
550 select BOOT_ELF32
551 select DMA_COHERENT
552 select HAVE_PATA_PLATFORM
553 select NR_CPUS_DEFAULT_2
554 select SIBYTE_SB1250
555 select SWAP_IO_SPACE
556 select SYS_HAS_CPU_SB1
557 select SYS_SUPPORTS_BIG_ENDIAN
558 select SYS_SUPPORTS_HIGHMEM
559 select SYS_SUPPORTS_LITTLE_ENDIAN
561 config SIBYTE_SENTOSA
562 bool "Sibyte BCM91250E-Sentosa"
563 depends on EXPERIMENTAL
564 select BOOT_ELF32
565 select DMA_COHERENT
566 select NR_CPUS_DEFAULT_2
567 select SIBYTE_SB1250
568 select SWAP_IO_SPACE
569 select SYS_HAS_CPU_SB1
570 select SYS_SUPPORTS_BIG_ENDIAN
571 select SYS_SUPPORTS_LITTLE_ENDIAN
573 config SIBYTE_BIGSUR
574 bool "Sibyte BCM91480B-BigSur"
575 select BOOT_ELF32
576 select DMA_COHERENT
577 select NR_CPUS_DEFAULT_4
578 select SIBYTE_BCM1x80
579 select SWAP_IO_SPACE
580 select SYS_HAS_CPU_SB1
581 select SYS_SUPPORTS_BIG_ENDIAN
582 select SYS_SUPPORTS_HIGHMEM
583 select SYS_SUPPORTS_LITTLE_ENDIAN
584 select ZONE_DMA32 if 64BIT
586 config SNI_RM
587 bool "SNI RM200/300/400"
588 select ARC if CPU_LITTLE_ENDIAN
589 select ARC32 if CPU_LITTLE_ENDIAN
590 select SNIPROM if CPU_BIG_ENDIAN
591 select ARCH_MAY_HAVE_PC_FDC
592 select BOOT_ELF32
593 select CEVT_R4K
594 select CSRC_R4K
595 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
596 select DMA_NONCOHERENT
597 select GENERIC_ISA_DMA
598 select HW_HAS_EISA
599 select HW_HAS_PCI
600 select IRQ_CPU
601 select I8253
602 select I8259
603 select ISA
604 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
605 select SYS_HAS_CPU_R4X00
606 select SYS_HAS_CPU_R5000
607 select SYS_HAS_CPU_R10000
608 select R5000_CPU_SCACHE
609 select SYS_HAS_EARLY_PRINTK
610 select SYS_SUPPORTS_32BIT_KERNEL
611 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
612 select SYS_SUPPORTS_BIG_ENDIAN
613 select SYS_SUPPORTS_HIGHMEM
614 select SYS_SUPPORTS_LITTLE_ENDIAN
615 help
616 The SNI RM200/300/400 are MIPS-based machines manufactured by
617 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
618 Technology and now in turn merged with Fujitsu. Say Y here to
619 support this machine type.
621 config MACH_TX39XX
622 bool "Toshiba TX39 series based machines"
624 config MACH_TX49XX
625 bool "Toshiba TX49 series based machines"
627 config MIKROTIK_RB532
628 bool "Mikrotik RB532 boards"
629 select CEVT_R4K
630 select CSRC_R4K
631 select DMA_NONCOHERENT
632 select HW_HAS_PCI
633 select IRQ_CPU
634 select SYS_HAS_CPU_MIPS32_R1
635 select SYS_SUPPORTS_32BIT_KERNEL
636 select SYS_SUPPORTS_LITTLE_ENDIAN
637 select SWAP_IO_SPACE
638 select BOOT_RAW
639 select ARCH_REQUIRE_GPIOLIB
640 help
641 Support the Mikrotik(tm) RouterBoard 532 series,
642 based on the IDT RC32434 SoC.
644 config WR_PPMC
645 bool "Wind River PPMC board"
646 select CEVT_R4K
647 select CSRC_R4K
648 select IRQ_CPU
649 select BOOT_ELF32
650 select DMA_NONCOHERENT
651 select HW_HAS_PCI
652 select PCI_GT64XXX_PCI0
653 select SWAP_IO_SPACE
654 select SYS_HAS_CPU_MIPS32_R1
655 select SYS_HAS_CPU_MIPS32_R2
656 select SYS_HAS_CPU_MIPS64_R1
657 select SYS_HAS_CPU_NEVADA
658 select SYS_HAS_CPU_RM7000
659 select SYS_SUPPORTS_32BIT_KERNEL
660 select SYS_SUPPORTS_64BIT_KERNEL
661 select SYS_SUPPORTS_BIG_ENDIAN
662 select SYS_SUPPORTS_LITTLE_ENDIAN
663 help
664 This enables support for the Wind River MIPS32 4KC PPMC evaluation
665 board, which is based on GT64120 bridge chip.
667 config CAVIUM_OCTEON_SIMULATOR
668 bool "Cavium Networks Octeon Simulator"
669 select CEVT_R4K
670 select 64BIT_PHYS_ADDR
671 select DMA_COHERENT
672 select SYS_SUPPORTS_64BIT_KERNEL
673 select SYS_SUPPORTS_BIG_ENDIAN
674 select SYS_SUPPORTS_HIGHMEM
675 select SYS_SUPPORTS_HOTPLUG_CPU
676 select SYS_HAS_CPU_CAVIUM_OCTEON
677 help
678 The Octeon simulator is software performance model of the Cavium
679 Octeon Processor. It supports simulating Octeon processors on x86
680 hardware.
682 config CAVIUM_OCTEON_REFERENCE_BOARD
683 bool "Cavium Networks Octeon reference board"
684 select CEVT_R4K
685 select 64BIT_PHYS_ADDR
686 select DMA_COHERENT
687 select SYS_SUPPORTS_64BIT_KERNEL
688 select SYS_SUPPORTS_BIG_ENDIAN
689 select SYS_SUPPORTS_HIGHMEM
690 select SYS_SUPPORTS_HOTPLUG_CPU
691 select SYS_HAS_EARLY_PRINTK
692 select SYS_HAS_CPU_CAVIUM_OCTEON
693 select SWAP_IO_SPACE
694 select HW_HAS_PCI
695 select ARCH_SUPPORTS_MSI
696 help
697 This option supports all of the Octeon reference boards from Cavium
698 Networks. It builds a kernel that dynamically determines the Octeon
699 CPU type and supports all known board reference implementations.
700 Some of the supported boards are:
701 EBT3000
702 EBH3000
703 EBH3100
704 Thunder
705 Kodama
706 Hikari
707 Say Y here for most Octeon reference boards.
709 endchoice
711 source "arch/mips/alchemy/Kconfig"
712 source "arch/mips/bcm63xx/Kconfig"
713 source "arch/mips/jazz/Kconfig"
714 source "arch/mips/jz4740/Kconfig"
715 source "arch/mips/lasat/Kconfig"
716 source "arch/mips/pmc-sierra/Kconfig"
717 source "arch/mips/powertv/Kconfig"
718 source "arch/mips/sgi-ip27/Kconfig"
719 source "arch/mips/sibyte/Kconfig"
720 source "arch/mips/txx9/Kconfig"
721 source "arch/mips/vr41xx/Kconfig"
722 source "arch/mips/cavium-octeon/Kconfig"
723 source "arch/mips/loongson/Kconfig"
725 endmenu
727 config RWSEM_GENERIC_SPINLOCK
728 bool
729 default y
731 config RWSEM_XCHGADD_ALGORITHM
732 bool
734 config ARCH_HAS_ILOG2_U32
735 bool
736 default n
738 config ARCH_HAS_ILOG2_U64
739 bool
740 default n
742 config ARCH_SUPPORTS_OPROFILE
743 bool
744 default y if !MIPS_MT_SMTC
746 config GENERIC_FIND_NEXT_BIT
747 bool
748 default y
750 config GENERIC_HWEIGHT
751 bool
752 default y
754 config GENERIC_CALIBRATE_DELAY
755 bool
756 default y
758 config GENERIC_CLOCKEVENTS
759 bool
760 default y
762 config GENERIC_CMOS_UPDATE
763 bool
764 default y
766 config SCHED_OMIT_FRAME_POINTER
767 bool
768 default y
770 config GENERIC_HARDIRQS_NO__DO_IRQ
771 def_bool y
773 #
774 # Select some configuration options automatically based on user selections.
775 #
776 config ARC
777 bool
779 config ARCH_MAY_HAVE_PC_FDC
780 bool
782 config BOOT_RAW
783 bool
785 config CEVT_BCM1480
786 bool
788 config CEVT_DS1287
789 bool
791 config CEVT_GT641XX
792 bool
794 config CEVT_R4K_LIB
795 bool
797 config CEVT_R4K
798 select CEVT_R4K_LIB
799 bool
801 config CEVT_SB1250
802 bool
804 config CEVT_TXX9
805 bool
807 config CSRC_BCM1480
808 bool
810 config CSRC_IOASIC
811 bool
813 config CSRC_POWERTV
814 bool
816 config CSRC_R4K_LIB
817 bool
819 config CSRC_R4K
820 select CSRC_R4K_LIB
821 bool
823 config CSRC_SB1250
824 bool
826 config GPIO_TXX9
827 select GENERIC_GPIO
828 select ARCH_REQUIRE_GPIOLIB
829 bool
831 config CFE
832 bool
834 config DMA_COHERENT
835 bool
837 config DMA_NONCOHERENT
838 bool
839 select NEED_DMA_MAP_STATE
841 config NEED_DMA_MAP_STATE
842 bool
844 config SYS_HAS_EARLY_PRINTK
845 bool
847 config HOTPLUG_CPU
848 bool "Support for hot-pluggable CPUs"
849 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
850 help
851 Say Y here to allow turning CPUs off and on. CPUs can be
852 controlled through /sys/devices/system/cpu.
853 (Note: power management support will enable this option
854 automatically on SMP systems. )
855 Say N if you want to disable CPU hotplug.
857 config SYS_SUPPORTS_HOTPLUG_CPU
858 bool
860 config I8259
861 bool
863 config MIPS_BONITO64
864 bool
866 config MIPS_MSC
867 bool
869 config MIPS_NILE4
870 bool
872 config MIPS_DISABLE_OBSOLETE_IDE
873 bool
875 config SYNC_R4K
876 bool
878 config NO_IOPORT
879 def_bool n
881 config GENERIC_ISA_DMA
882 bool
883 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
885 config GENERIC_ISA_DMA_SUPPORT_BROKEN
886 bool
887 select GENERIC_ISA_DMA
889 config GENERIC_GPIO
890 bool
892 #
893 # Endianess selection. Sufficiently obscure so many users don't know what to
894 # answer,so we try hard to limit the available choices. Also the use of a
895 # choice statement should be more obvious to the user.
896 #
897 choice
898 prompt "Endianess selection"
899 help
900 Some MIPS machines can be configured for either little or big endian
901 byte order. These modes require different kernels and a different
902 Linux distribution. In general there is one preferred byteorder for a
903 particular system but some systems are just as commonly used in the
904 one or the other endianness.
906 config CPU_BIG_ENDIAN
907 bool "Big endian"
908 depends on SYS_SUPPORTS_BIG_ENDIAN
910 config CPU_LITTLE_ENDIAN
911 bool "Little endian"
912 depends on SYS_SUPPORTS_LITTLE_ENDIAN
913 help
915 endchoice
917 config EXPORT_UASM
918 bool
920 config SYS_SUPPORTS_APM_EMULATION
921 bool
923 config SYS_SUPPORTS_BIG_ENDIAN
924 bool
926 config SYS_SUPPORTS_LITTLE_ENDIAN
927 bool
929 config SYS_SUPPORTS_HUGETLBFS
930 bool
931 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
932 default y
934 config IRQ_CPU
935 bool
937 config IRQ_CPU_RM7K
938 bool
940 config IRQ_CPU_RM9K
941 bool
943 config IRQ_MSP_SLP
944 bool
946 config IRQ_MSP_CIC
947 bool
949 config IRQ_TXX9
950 bool
952 config IRQ_GT641XX
953 bool
955 config IRQ_GIC
956 bool
958 config IRQ_CPU_OCTEON
959 bool
961 config MIPS_BOARDS_GEN
962 bool
964 config PCI_GT64XXX_PCI0
965 bool
967 config NO_EXCEPT_FILL
968 bool
970 config MIPS_RM9122
971 bool
972 select SERIAL_RM9000
974 config SOC_EMMA2RH
975 bool
976 select CEVT_R4K
977 select CSRC_R4K
978 select DMA_NONCOHERENT
979 select IRQ_CPU
980 select SWAP_IO_SPACE
981 select SYS_HAS_CPU_R5500
982 select SYS_SUPPORTS_32BIT_KERNEL
983 select SYS_SUPPORTS_64BIT_KERNEL
984 select SYS_SUPPORTS_BIG_ENDIAN
986 config SOC_PNX833X
987 bool
988 select CEVT_R4K
989 select CSRC_R4K
990 select IRQ_CPU
991 select DMA_NONCOHERENT
992 select SYS_HAS_CPU_MIPS32_R2
993 select SYS_SUPPORTS_32BIT_KERNEL
994 select SYS_SUPPORTS_LITTLE_ENDIAN
995 select SYS_SUPPORTS_BIG_ENDIAN
996 select GENERIC_GPIO
997 select CPU_MIPSR2_IRQ_VI
999 config SOC_PNX8335
1000 bool
1001 select SOC_PNX833X
1003 config PNX8550
1004 bool
1005 select SOC_PNX8550
1007 config SOC_PNX8550
1008 bool
1009 select DMA_NONCOHERENT
1010 select HW_HAS_PCI
1011 select SYS_HAS_CPU_MIPS32_R1
1012 select SYS_HAS_EARLY_PRINTK
1013 select SYS_SUPPORTS_32BIT_KERNEL
1014 select GENERIC_GPIO
1016 config SWAP_IO_SPACE
1017 bool
1019 config SERIAL_RM9000
1020 bool
1022 config SGI_HAS_INDYDOG
1023 bool
1025 config SGI_HAS_HAL2
1026 bool
1028 config SGI_HAS_SEEQ
1029 bool
1031 config SGI_HAS_WD93
1032 bool
1034 config SGI_HAS_ZILOG
1035 bool
1037 config SGI_HAS_I8042
1038 bool
1040 config DEFAULT_SGI_PARTITION
1041 bool
1043 config ARC32
1044 bool
1046 config SNIPROM
1047 bool
1049 config BOOT_ELF32
1050 bool
1052 config MIPS_L1_CACHE_SHIFT
1053 int
1054 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1055 default "6" if MIPS_CPU_SCACHE
1056 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1057 default "5"
1059 config HAVE_STD_PC_SERIAL_PORT
1060 bool
1062 config ARC_CONSOLE
1063 bool "ARC console support"
1064 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1066 config ARC_MEMORY
1067 bool
1068 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1069 default y
1071 config ARC_PROMLIB
1072 bool
1073 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1074 default y
1076 config ARC64
1077 bool
1079 config BOOT_ELF64
1080 bool
1082 menu "CPU selection"
1084 choice
1085 prompt "CPU type"
1086 default CPU_R4X00
1088 config CPU_LOONGSON2E
1089 bool "Loongson 2E"
1090 depends on SYS_HAS_CPU_LOONGSON2E
1091 select CPU_LOONGSON2
1092 help
1093 The Loongson 2E processor implements the MIPS III instruction set
1094 with many extensions.
1096 It has an internal FPGA northbridge, which is compatiable to
1097 bonito64.
1099 config CPU_LOONGSON2F
1100 bool "Loongson 2F"
1101 depends on SYS_HAS_CPU_LOONGSON2F
1102 select CPU_LOONGSON2
1103 select GENERIC_GPIO
1104 select ARCH_REQUIRE_GPIOLIB
1105 help
1106 The Loongson 2F processor implements the MIPS III instruction set
1107 with many extensions.
1109 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1110 have a similar programming interface with FPGA northbridge used in
1111 Loongson2E.
1113 config CPU_MIPS32_R1
1114 bool "MIPS32 Release 1"
1115 depends on SYS_HAS_CPU_MIPS32_R1
1116 select CPU_HAS_PREFETCH
1117 select CPU_SUPPORTS_32BIT_KERNEL
1118 select CPU_SUPPORTS_HIGHMEM
1119 help
1120 Choose this option to build a kernel for release 1 or later of the
1121 MIPS32 architecture. Most modern embedded systems with a 32-bit
1122 MIPS processor are based on a MIPS32 processor. If you know the
1123 specific type of processor in your system, choose those that one
1124 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1125 Release 2 of the MIPS32 architecture is available since several
1126 years so chances are you even have a MIPS32 Release 2 processor
1127 in which case you should choose CPU_MIPS32_R2 instead for better
1128 performance.
1130 config CPU_MIPS32_R2
1131 bool "MIPS32 Release 2"
1132 depends on SYS_HAS_CPU_MIPS32_R2
1133 select CPU_HAS_PREFETCH
1134 select CPU_SUPPORTS_32BIT_KERNEL
1135 select CPU_SUPPORTS_HIGHMEM
1136 help
1137 Choose this option to build a kernel for release 2 or later of the
1138 MIPS32 architecture. Most modern embedded systems with a 32-bit
1139 MIPS processor are based on a MIPS32 processor. If you know the
1140 specific type of processor in your system, choose those that one
1141 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1143 config CPU_MIPS64_R1
1144 bool "MIPS64 Release 1"
1145 depends on SYS_HAS_CPU_MIPS64_R1
1146 select CPU_HAS_PREFETCH
1147 select CPU_SUPPORTS_32BIT_KERNEL
1148 select CPU_SUPPORTS_64BIT_KERNEL
1149 select CPU_SUPPORTS_HIGHMEM
1150 select CPU_SUPPORTS_HUGEPAGES
1151 help
1152 Choose this option to build a kernel for release 1 or later of the
1153 MIPS64 architecture. Many modern embedded systems with a 64-bit
1154 MIPS processor are based on a MIPS64 processor. If you know the
1155 specific type of processor in your system, choose those that one
1156 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1157 Release 2 of the MIPS64 architecture is available since several
1158 years so chances are you even have a MIPS64 Release 2 processor
1159 in which case you should choose CPU_MIPS64_R2 instead for better
1160 performance.
1162 config CPU_MIPS64_R2
1163 bool "MIPS64 Release 2"
1164 depends on SYS_HAS_CPU_MIPS64_R2
1165 select CPU_HAS_PREFETCH
1166 select CPU_SUPPORTS_32BIT_KERNEL
1167 select CPU_SUPPORTS_64BIT_KERNEL
1168 select CPU_SUPPORTS_HIGHMEM
1169 select CPU_SUPPORTS_HUGEPAGES
1170 help
1171 Choose this option to build a kernel for release 2 or later of the
1172 MIPS64 architecture. Many modern embedded systems with a 64-bit
1173 MIPS processor are based on a MIPS64 processor. If you know the
1174 specific type of processor in your system, choose those that one
1175 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1177 config CPU_R3000
1178 bool "R3000"
1179 depends on SYS_HAS_CPU_R3000
1180 select CPU_HAS_WB
1181 select CPU_SUPPORTS_32BIT_KERNEL
1182 select CPU_SUPPORTS_HIGHMEM
1183 help
1184 Please make sure to pick the right CPU type. Linux/MIPS is not
1185 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1186 *not* work on R4000 machines and vice versa. However, since most
1187 of the supported machines have an R4000 (or similar) CPU, R4x00
1188 might be a safe bet. If the resulting kernel does not work,
1189 try to recompile with R3000.
1191 config CPU_TX39XX
1192 bool "R39XX"
1193 depends on SYS_HAS_CPU_TX39XX
1194 select CPU_SUPPORTS_32BIT_KERNEL
1196 config CPU_VR41XX
1197 bool "R41xx"
1198 depends on SYS_HAS_CPU_VR41XX
1199 select CPU_SUPPORTS_32BIT_KERNEL
1200 select CPU_SUPPORTS_64BIT_KERNEL
1201 help
1202 The options selects support for the NEC VR4100 series of processors.
1203 Only choose this option if you have one of these processors as a
1204 kernel built with this option will not run on any other type of
1205 processor or vice versa.
1207 config CPU_R4300
1208 bool "R4300"
1209 depends on SYS_HAS_CPU_R4300
1210 select CPU_SUPPORTS_32BIT_KERNEL
1211 select CPU_SUPPORTS_64BIT_KERNEL
1212 help
1213 MIPS Technologies R4300-series processors.
1215 config CPU_R4X00
1216 bool "R4x00"
1217 depends on SYS_HAS_CPU_R4X00
1218 select CPU_SUPPORTS_32BIT_KERNEL
1219 select CPU_SUPPORTS_64BIT_KERNEL
1220 help
1221 MIPS Technologies R4000-series processors other than 4300, including
1222 the R4000, R4400, R4600, and 4700.
1224 config CPU_TX49XX
1225 bool "R49XX"
1226 depends on SYS_HAS_CPU_TX49XX
1227 select CPU_HAS_PREFETCH
1228 select CPU_SUPPORTS_32BIT_KERNEL
1229 select CPU_SUPPORTS_64BIT_KERNEL
1231 config CPU_R5000
1232 bool "R5000"
1233 depends on SYS_HAS_CPU_R5000
1234 select CPU_SUPPORTS_32BIT_KERNEL
1235 select CPU_SUPPORTS_64BIT_KERNEL
1236 help
1237 MIPS Technologies R5000-series processors other than the Nevada.
1239 config CPU_R5432
1240 bool "R5432"
1241 depends on SYS_HAS_CPU_R5432
1242 select CPU_SUPPORTS_32BIT_KERNEL
1243 select CPU_SUPPORTS_64BIT_KERNEL
1245 config CPU_R5500
1246 bool "R5500"
1247 depends on SYS_HAS_CPU_R5500
1248 select CPU_SUPPORTS_32BIT_KERNEL
1249 select CPU_SUPPORTS_64BIT_KERNEL
1250 select CPU_SUPPORTS_HUGEPAGES
1251 help
1252 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1253 instruction set.
1255 config CPU_R6000
1256 bool "R6000"
1257 depends on EXPERIMENTAL
1258 depends on SYS_HAS_CPU_R6000
1259 select CPU_SUPPORTS_32BIT_KERNEL
1260 help
1261 MIPS Technologies R6000 and R6000A series processors. Note these
1262 processors are extremely rare and the support for them is incomplete.
1264 config CPU_NEVADA
1265 bool "RM52xx"
1266 depends on SYS_HAS_CPU_NEVADA
1267 select CPU_SUPPORTS_32BIT_KERNEL
1268 select CPU_SUPPORTS_64BIT_KERNEL
1269 help
1270 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1272 config CPU_R8000
1273 bool "R8000"
1274 depends on EXPERIMENTAL
1275 depends on SYS_HAS_CPU_R8000
1276 select CPU_HAS_PREFETCH
1277 select CPU_SUPPORTS_64BIT_KERNEL
1278 help
1279 MIPS Technologies R8000 processors. Note these processors are
1280 uncommon and the support for them is incomplete.
1282 config CPU_R10000
1283 bool "R10000"
1284 depends on SYS_HAS_CPU_R10000
1285 select CPU_HAS_PREFETCH
1286 select CPU_SUPPORTS_32BIT_KERNEL
1287 select CPU_SUPPORTS_64BIT_KERNEL
1288 select CPU_SUPPORTS_HIGHMEM
1289 help
1290 MIPS Technologies R10000-series processors.
1292 config CPU_RM7000
1293 bool "RM7000"
1294 depends on SYS_HAS_CPU_RM7000
1295 select CPU_HAS_PREFETCH
1296 select CPU_SUPPORTS_32BIT_KERNEL
1297 select CPU_SUPPORTS_64BIT_KERNEL
1298 select CPU_SUPPORTS_HIGHMEM
1300 config CPU_RM9000
1301 bool "RM9000"
1302 depends on SYS_HAS_CPU_RM9000
1303 select CPU_HAS_PREFETCH
1304 select CPU_SUPPORTS_32BIT_KERNEL
1305 select CPU_SUPPORTS_64BIT_KERNEL
1306 select CPU_SUPPORTS_HIGHMEM
1307 select WEAK_ORDERING
1309 config CPU_SB1
1310 bool "SB1"
1311 depends on SYS_HAS_CPU_SB1
1312 select CPU_SUPPORTS_32BIT_KERNEL
1313 select CPU_SUPPORTS_64BIT_KERNEL
1314 select CPU_SUPPORTS_HIGHMEM
1315 select WEAK_ORDERING
1317 config CPU_CAVIUM_OCTEON
1318 bool "Cavium Octeon processor"
1319 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1320 select IRQ_CPU
1321 select IRQ_CPU_OCTEON
1322 select CPU_HAS_PREFETCH
1323 select CPU_SUPPORTS_64BIT_KERNEL
1324 select SYS_SUPPORTS_SMP
1325 select NR_CPUS_DEFAULT_16
1326 select WEAK_ORDERING
1327 select CPU_SUPPORTS_HIGHMEM
1328 select CPU_SUPPORTS_HUGEPAGES
1329 help
1330 The Cavium Octeon processor is a highly integrated chip containing
1331 many ethernet hardware widgets for networking tasks. The processor
1332 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1333 Full details can be found at http://www.caviumnetworks.com.
1335 endchoice
1337 if CPU_LOONGSON2F
1338 config CPU_NOP_WORKAROUNDS
1339 bool
1341 config CPU_JUMP_WORKAROUNDS
1342 bool
1344 config CPU_LOONGSON2F_WORKAROUNDS
1345 bool "Loongson 2F Workarounds"
1346 default y
1347 select CPU_NOP_WORKAROUNDS
1348 select CPU_JUMP_WORKAROUNDS
1349 help
1350 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1351 require workarounds. Without workarounds the system may hang
1352 unexpectedly. For more information please refer to the gas
1353 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1355 Loongson 2F03 and later have fixed these issues and no workarounds
1356 are needed. The workarounds have no significant side effect on them
1357 but may decrease the performance of the system so this option should
1358 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1359 systems.
1361 If unsure, please say Y.
1362 endif # CPU_LOONGSON2F
1364 config SYS_SUPPORTS_ZBOOT
1365 bool
1366 select HAVE_KERNEL_GZIP
1367 select HAVE_KERNEL_BZIP2
1368 select HAVE_KERNEL_LZMA
1369 select HAVE_KERNEL_LZO
1371 config SYS_SUPPORTS_ZBOOT_UART16550
1372 bool
1373 select SYS_SUPPORTS_ZBOOT
1375 config CPU_LOONGSON2
1376 bool
1377 select CPU_SUPPORTS_32BIT_KERNEL
1378 select CPU_SUPPORTS_64BIT_KERNEL
1379 select CPU_SUPPORTS_HIGHMEM
1381 config SYS_HAS_CPU_LOONGSON2E
1382 bool
1384 config SYS_HAS_CPU_LOONGSON2F
1385 bool
1386 select CPU_SUPPORTS_CPUFREQ
1387 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1388 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1390 config SYS_HAS_CPU_MIPS32_R1
1391 bool
1393 config SYS_HAS_CPU_MIPS32_R2
1394 bool
1396 config SYS_HAS_CPU_MIPS64_R1
1397 bool
1399 config SYS_HAS_CPU_MIPS64_R2
1400 bool
1402 config SYS_HAS_CPU_R3000
1403 bool
1405 config SYS_HAS_CPU_TX39XX
1406 bool
1408 config SYS_HAS_CPU_VR41XX
1409 bool
1411 config SYS_HAS_CPU_R4300
1412 bool
1414 config SYS_HAS_CPU_R4X00
1415 bool
1417 config SYS_HAS_CPU_TX49XX
1418 bool
1420 config SYS_HAS_CPU_R5000
1421 bool
1423 config SYS_HAS_CPU_R5432
1424 bool
1426 config SYS_HAS_CPU_R5500
1427 bool
1429 config SYS_HAS_CPU_R6000
1430 bool
1432 config SYS_HAS_CPU_NEVADA
1433 bool
1435 config SYS_HAS_CPU_R8000
1436 bool
1438 config SYS_HAS_CPU_R10000
1439 bool
1441 config SYS_HAS_CPU_RM7000
1442 bool
1444 config SYS_HAS_CPU_RM9000
1445 bool
1447 config SYS_HAS_CPU_SB1
1448 bool
1450 config SYS_HAS_CPU_CAVIUM_OCTEON
1451 bool
1453 #
1454 # CPU may reorder R->R, R->W, W->R, W->W
1455 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1456 #
1457 config WEAK_ORDERING
1458 bool
1460 #
1461 # CPU may reorder reads and writes beyond LL/SC
1462 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1463 #
1464 config WEAK_REORDERING_BEYOND_LLSC
1465 bool
1466 endmenu
1468 #
1469 # These two indicate any level of the MIPS32 and MIPS64 architecture
1470 #
1471 config CPU_MIPS32
1472 bool
1473 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1475 config CPU_MIPS64
1476 bool
1477 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1479 #
1480 # These two indicate the revision of the architecture, either Release 1 or Release 2
1481 #
1482 config CPU_MIPSR1
1483 bool
1484 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1486 config CPU_MIPSR2
1487 bool
1488 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1490 config SYS_SUPPORTS_32BIT_KERNEL
1491 bool
1492 config SYS_SUPPORTS_64BIT_KERNEL
1493 bool
1494 config CPU_SUPPORTS_32BIT_KERNEL
1495 bool
1496 config CPU_SUPPORTS_64BIT_KERNEL
1497 bool
1498 config CPU_SUPPORTS_CPUFREQ
1499 bool
1500 config CPU_SUPPORTS_ADDRWINCFG
1501 bool
1502 config CPU_SUPPORTS_HUGEPAGES
1503 bool
1504 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1505 bool
1506 config MIPS_PGD_C0_CONTEXT
1507 bool
1508 default y if 64BIT && CPU_MIPSR2
1510 #
1511 # Set to y for ptrace access to watch registers.
1512 #
1513 config HARDWARE_WATCHPOINTS
1514 bool
1515 default y if CPU_MIPSR1 || CPU_MIPSR2
1517 menu "Kernel type"
1519 choice
1521 prompt "Kernel code model"
1522 help
1523 You should only select this option if you have a workload that
1524 actually benefits from 64-bit processing or if your machine has
1525 large memory. You will only be presented a single option in this
1526 menu if your system does not support both 32-bit and 64-bit kernels.
1528 config 32BIT
1529 bool "32-bit kernel"
1530 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1531 select TRAD_SIGNALS
1532 help
1533 Select this option if you want to build a 32-bit kernel.
1534 config 64BIT
1535 bool "64-bit kernel"
1536 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1537 select HAVE_SYSCALL_WRAPPERS
1538 help
1539 Select this option if you want to build a 64-bit kernel.
1541 endchoice
1543 choice
1544 prompt "Kernel page size"
1545 default PAGE_SIZE_4KB
1547 config PAGE_SIZE_4KB
1548 bool "4kB"
1549 depends on !CPU_LOONGSON2
1550 help
1551 This option select the standard 4kB Linux page size. On some
1552 R3000-family processors this is the only available page size. Using
1553 4kB page size will minimize memory consumption and is therefore
1554 recommended for low memory systems.
1556 config PAGE_SIZE_8KB
1557 bool "8kB"
1558 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1559 help
1560 Using 8kB page size will result in higher performance kernel at
1561 the price of higher memory consumption. This option is available
1562 only on R8000 and cnMIPS processors. Note that you will need a
1563 suitable Linux distribution to support this.
1565 config PAGE_SIZE_16KB
1566 bool "16kB"
1567 depends on !CPU_R3000 && !CPU_TX39XX
1568 help
1569 Using 16kB page size will result in higher performance kernel at
1570 the price of higher memory consumption. This option is available on
1571 all non-R3000 family processors. Note that you will need a suitable
1572 Linux distribution to support this.
1574 config PAGE_SIZE_32KB
1575 bool "32kB"
1576 depends on CPU_CAVIUM_OCTEON
1577 help
1578 Using 32kB page size will result in higher performance kernel at
1579 the price of higher memory consumption. This option is available
1580 only on cnMIPS cores. Note that you will need a suitable Linux
1581 distribution to support this.
1583 config PAGE_SIZE_64KB
1584 bool "64kB"
1585 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1586 help
1587 Using 64kB page size will result in higher performance kernel at
1588 the price of higher memory consumption. This option is available on
1589 all non-R3000 family processor. Not that at the time of this
1590 writing this option is still high experimental.
1592 endchoice
1594 config BOARD_SCACHE
1595 bool
1597 config IP22_CPU_SCACHE
1598 bool
1599 select BOARD_SCACHE
1601 #
1602 # Support for a MIPS32 / MIPS64 style S-caches
1603 #
1604 config MIPS_CPU_SCACHE
1605 bool
1606 select BOARD_SCACHE
1608 config R5000_CPU_SCACHE
1609 bool
1610 select BOARD_SCACHE
1612 config RM7000_CPU_SCACHE
1613 bool
1614 select BOARD_SCACHE
1616 config SIBYTE_DMA_PAGEOPS
1617 bool "Use DMA to clear/copy pages"
1618 depends on CPU_SB1
1619 help
1620 Instead of using the CPU to zero and copy pages, use a Data Mover
1621 channel. These DMA channels are otherwise unused by the standard
1622 SiByte Linux port. Seems to give a small performance benefit.
1624 config CPU_HAS_PREFETCH
1625 bool
1627 choice
1628 prompt "MIPS MT options"
1630 config MIPS_MT_DISABLED
1631 bool "Disable multithreading support."
1632 help
1633 Use this option if your workload can't take advantage of
1634 MIPS hardware multithreading support. On systems that don't have
1635 the option of an MT-enabled processor this option will be the only
1636 option in this menu.
1638 config MIPS_MT_SMP
1639 bool "Use 1 TC on each available VPE for SMP"
1640 depends on SYS_SUPPORTS_MULTITHREADING
1641 select CPU_MIPSR2_IRQ_VI
1642 select CPU_MIPSR2_IRQ_EI
1643 select MIPS_MT
1644 select NR_CPUS_DEFAULT_2
1645 select SMP
1646 select SYS_SUPPORTS_SCHED_SMT if SMP
1647 select SYS_SUPPORTS_SMP
1648 select SMP_UP
1649 help
1650 This is a kernel model which is known a VSMP but lately has been
1651 marketesed into SMVP.
1652 Virtual SMP uses the processor's VPEs to implement virtual
1653 processors. In currently available configuration of the 34K processor
1654 this allows for a dual processor. Both processors will share the same
1655 primary caches; each will obtain the half of the TLB for it's own
1656 exclusive use. For a layman this model can be described as similar to
1657 what Intel calls Hyperthreading.
1659 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1661 config MIPS_MT_SMTC
1662 bool "SMTC: Use all TCs on all VPEs for SMP"
1663 depends on CPU_MIPS32_R2
1664 #depends on CPU_MIPS64_R2 # once there is hardware ...
1665 depends on SYS_SUPPORTS_MULTITHREADING
1666 select CPU_MIPSR2_IRQ_VI
1667 select CPU_MIPSR2_IRQ_EI
1668 select MIPS_MT
1669 select NR_CPUS_DEFAULT_8
1670 select SMP
1671 select SYS_SUPPORTS_SMP
1672 select SMP_UP
1673 help
1674 This is a kernel model which is known a SMTC or lately has been
1675 marketesed into SMVP.
1676 is presenting the available TC's of the core as processors to Linux.
1677 On currently available 34K processors this means a Linux system will
1678 see up to 5 processors. The implementation of the SMTC kernel differs
1679 significantly from VSMP and cannot efficiently coexist in the same
1680 kernel binary so the choice between VSMP and SMTC is a compile time
1681 decision.
1683 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1685 endchoice
1687 config MIPS_MT
1688 bool
1690 config SCHED_SMT
1691 bool "SMT (multithreading) scheduler support"
1692 depends on SYS_SUPPORTS_SCHED_SMT
1693 default n
1694 help
1695 SMT scheduler support improves the CPU scheduler's decision making
1696 when dealing with MIPS MT enabled cores at a cost of slightly
1697 increased overhead in some places. If unsure say N here.
1699 config SYS_SUPPORTS_SCHED_SMT
1700 bool
1703 config SYS_SUPPORTS_MULTITHREADING
1704 bool
1706 config MIPS_MT_FPAFF
1707 bool "Dynamic FPU affinity for FP-intensive threads"
1708 default y
1709 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1711 config MIPS_VPE_LOADER
1712 bool "VPE loader support."
1713 depends on SYS_SUPPORTS_MULTITHREADING
1714 select CPU_MIPSR2_IRQ_VI
1715 select CPU_MIPSR2_IRQ_EI
1716 select MIPS_MT
1717 help
1718 Includes a loader for loading an elf relocatable object
1719 onto another VPE and running it.
1721 config MIPS_MT_SMTC_IM_BACKSTOP
1722 bool "Use per-TC register bits as backstop for inhibited IM bits"
1723 depends on MIPS_MT_SMTC
1724 default n
1725 help
1726 To support multiple TC microthreads acting as "CPUs" within
1727 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1728 during interrupt handling. To support legacy drivers and interrupt
1729 controller management code, SMTC has a "backstop" to track and
1730 if necessary restore the interrupt mask. This has some performance
1731 impact on interrupt service overhead.
1733 config MIPS_MT_SMTC_IRQAFF
1734 bool "Support IRQ affinity API"
1735 depends on MIPS_MT_SMTC
1736 default n
1737 help
1738 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1739 for SMTC Linux kernel. Requires platform support, of which
1740 an example can be found in the MIPS kernel i8259 and Malta
1741 platform code. Adds some overhead to interrupt dispatch, and
1742 should be used only if you know what you are doing.
1744 config MIPS_VPE_LOADER_TOM
1745 bool "Load VPE program into memory hidden from linux"
1746 depends on MIPS_VPE_LOADER
1747 default y
1748 help
1749 The loader can use memory that is present but has been hidden from
1750 Linux using the kernel command line option "mem=xxMB". It's up to
1751 you to ensure the amount you put in the option and the space your
1752 program requires is less or equal to the amount physically present.
1754 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1755 config MIPS_VPE_APSP_API
1756 bool "Enable support for AP/SP API (RTLX)"
1757 depends on MIPS_VPE_LOADER
1758 help
1760 config MIPS_APSP_KSPD
1761 bool "Enable KSPD"
1762 depends on MIPS_VPE_APSP_API
1763 default y
1764 help
1765 KSPD is a kernel daemon that accepts syscall requests from the SP
1766 side, actions them and returns the results. It also handles the
1767 "exit" syscall notifying other kernel modules the SP program is
1768 exiting. You probably want to say yes here.
1770 config MIPS_CMP
1771 bool "MIPS CMP framework support"
1772 depends on SYS_SUPPORTS_MIPS_CMP
1773 select SYNC_R4K
1774 select SYS_SUPPORTS_SMP
1775 select SYS_SUPPORTS_SCHED_SMT if SMP
1776 select WEAK_ORDERING
1777 default n
1778 help
1779 This is a placeholder option for the GCMP work. It will need to
1780 be handled differently...
1782 config SB1_PASS_1_WORKAROUNDS
1783 bool
1784 depends on CPU_SB1_PASS_1
1785 default y
1787 config SB1_PASS_2_WORKAROUNDS
1788 bool
1789 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1790 default y
1792 config SB1_PASS_2_1_WORKAROUNDS
1793 bool
1794 depends on CPU_SB1 && CPU_SB1_PASS_2
1795 default y
1797 config 64BIT_PHYS_ADDR
1798 bool
1800 config ARCH_PHYS_ADDR_T_64BIT
1801 def_bool 64BIT_PHYS_ADDR
1803 config CPU_HAS_SMARTMIPS
1804 depends on SYS_SUPPORTS_SMARTMIPS
1805 bool "Support for the SmartMIPS ASE"
1806 help
1807 SmartMIPS is a extension of the MIPS32 architecture aimed at
1808 increased security at both hardware and software level for
1809 smartcards. Enabling this option will allow proper use of the
1810 SmartMIPS instructions by Linux applications. However a kernel with
1811 this option will not work on a MIPS core without SmartMIPS core. If
1812 you don't know you probably don't have SmartMIPS and should say N
1813 here.
1815 config CPU_HAS_WB
1816 bool
1818 #
1819 # Vectored interrupt mode is an R2 feature
1820 #
1821 config CPU_MIPSR2_IRQ_VI
1822 bool
1824 #
1825 # Extended interrupt mode is an R2 feature
1826 #
1827 config CPU_MIPSR2_IRQ_EI
1828 bool
1830 config CPU_HAS_SYNC
1831 bool
1832 depends on !CPU_R3000
1833 default y
1835 config GENERIC_CLOCKEVENTS_BROADCAST
1836 bool
1838 #
1839 # CPU non-features
1840 #
1841 config CPU_DADDI_WORKAROUNDS
1842 bool
1844 config CPU_R4000_WORKAROUNDS
1845 bool
1846 select CPU_R4400_WORKAROUNDS
1848 config CPU_R4400_WORKAROUNDS
1849 bool
1851 #
1852 # Use the generic interrupt handling code in kernel/irq/:
1853 #
1854 config GENERIC_HARDIRQS
1855 bool
1856 default y
1858 config GENERIC_IRQ_PROBE
1859 bool
1860 default y
1862 config IRQ_PER_CPU
1863 bool
1865 #
1866 # - Highmem only makes sense for the 32-bit kernel.
1867 # - The current highmem code will only work properly on physically indexed
1868 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1869 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1870 # moment we protect the user and offer the highmem option only on machines
1871 # where it's known to be safe. This will not offer highmem on a few systems
1872 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1873 # indexed CPUs but we're playing safe.
1874 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1875 # know they might have memory configurations that could make use of highmem
1876 # support.
1877 #
1878 config HIGHMEM
1879 bool "High Memory Support"
1880 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1882 config CPU_SUPPORTS_HIGHMEM
1883 bool
1885 config SYS_SUPPORTS_HIGHMEM
1886 bool
1888 config SYS_SUPPORTS_SMARTMIPS
1889 bool
1891 config ARCH_FLATMEM_ENABLE
1892 def_bool y
1893 depends on !NUMA && !CPU_LOONGSON2
1895 config ARCH_DISCONTIGMEM_ENABLE
1896 bool
1897 default y if SGI_IP27
1898 help
1899 Say Y to support efficient handling of discontiguous physical memory,
1900 for architectures which are either NUMA (Non-Uniform Memory Access)
1901 or have huge holes in the physical address space for other reasons.
1902 See <file:Documentation/vm/numa> for more.
1904 config ARCH_POPULATES_NODE_MAP
1905 def_bool y
1907 config ARCH_SPARSEMEM_ENABLE
1908 bool
1909 select SPARSEMEM_STATIC
1911 config NUMA
1912 bool "NUMA Support"
1913 depends on SYS_SUPPORTS_NUMA
1914 help
1915 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1916 Access). This option improves performance on systems with more
1917 than two nodes; on two node systems it is generally better to
1918 leave it disabled; on single node systems disable this option
1919 disabled.
1921 config SYS_SUPPORTS_NUMA
1922 bool
1924 config NODES_SHIFT
1925 int
1926 default "6"
1927 depends on NEED_MULTIPLE_NODES
1929 source "mm/Kconfig"
1931 config SMP
1932 bool "Multi-Processing support"
1933 depends on SYS_SUPPORTS_SMP
1934 select IRQ_PER_CPU
1935 select USE_GENERIC_SMP_HELPERS
1936 help
1937 This enables support for systems with more than one CPU. If you have
1938 a system with only one CPU, like most personal computers, say N. If
1939 you have a system with more than one CPU, say Y.
1941 If you say N here, the kernel will run on single and multiprocessor
1942 machines, but will use only one CPU of a multiprocessor machine. If
1943 you say Y here, the kernel will run on many, but not all,
1944 singleprocessor machines. On a singleprocessor machine, the kernel
1945 will run faster if you say N here.
1947 People using multiprocessor machines who say Y here should also say
1948 Y to "Enhanced Real Time Clock Support", below.
1950 See also the SMP-HOWTO available at
1951 <http://www.tldp.org/docs.html#howto>.
1953 If you don't know what to do here, say N.
1955 config SMP_UP
1956 bool
1958 config SYS_SUPPORTS_MIPS_CMP
1959 bool
1961 config SYS_SUPPORTS_SMP
1962 bool
1964 config NR_CPUS_DEFAULT_1
1965 bool
1967 config NR_CPUS_DEFAULT_2
1968 bool
1970 config NR_CPUS_DEFAULT_4
1971 bool
1973 config NR_CPUS_DEFAULT_8
1974 bool
1976 config NR_CPUS_DEFAULT_16
1977 bool
1979 config NR_CPUS_DEFAULT_32
1980 bool
1982 config NR_CPUS_DEFAULT_64
1983 bool
1985 config NR_CPUS
1986 int "Maximum number of CPUs (2-64)"
1987 range 1 64 if NR_CPUS_DEFAULT_1
1988 depends on SMP
1989 default "1" if NR_CPUS_DEFAULT_1
1990 default "2" if NR_CPUS_DEFAULT_2
1991 default "4" if NR_CPUS_DEFAULT_4
1992 default "8" if NR_CPUS_DEFAULT_8
1993 default "16" if NR_CPUS_DEFAULT_16
1994 default "32" if NR_CPUS_DEFAULT_32
1995 default "64" if NR_CPUS_DEFAULT_64
1996 help
1997 This allows you to specify the maximum number of CPUs which this
1998 kernel will support. The maximum supported value is 32 for 32-bit
1999 kernel and 64 for 64-bit kernels; the minimum value which makes
2000 sense is 1 for Qemu (useful only for kernel debugging purposes)
2001 and 2 for all others.
2003 This is purely to save memory - each supported CPU adds
2004 approximately eight kilobytes to the kernel image. For best
2005 performance should round up your number of processors to the next
2006 power of two.
2008 source "kernel/time/Kconfig"
2010 #
2011 # Timer Interrupt Frequency Configuration
2012 #
2014 choice
2015 prompt "Timer frequency"
2016 default HZ_250
2017 help
2018 Allows the configuration of the timer frequency.
2020 config HZ_48
2021 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2023 config HZ_100
2024 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2026 config HZ_128
2027 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2029 config HZ_250
2030 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2032 config HZ_256
2033 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2035 config HZ_1000
2036 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2038 config HZ_1024
2039 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2041 endchoice
2043 config SYS_SUPPORTS_48HZ
2044 bool
2046 config SYS_SUPPORTS_100HZ
2047 bool
2049 config SYS_SUPPORTS_128HZ
2050 bool
2052 config SYS_SUPPORTS_250HZ
2053 bool
2055 config SYS_SUPPORTS_256HZ
2056 bool
2058 config SYS_SUPPORTS_1000HZ
2059 bool
2061 config SYS_SUPPORTS_1024HZ
2062 bool
2064 config SYS_SUPPORTS_ARBIT_HZ
2065 bool
2066 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2067 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2068 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2069 !SYS_SUPPORTS_1024HZ
2071 config HZ
2072 int
2073 default 48 if HZ_48
2074 default 100 if HZ_100
2075 default 128 if HZ_128
2076 default 250 if HZ_250
2077 default 256 if HZ_256
2078 default 1000 if HZ_1000
2079 default 1024 if HZ_1024
2081 source "kernel/Kconfig.preempt"
2083 config MIPS_INSANE_LARGE
2084 bool "Support for large 64-bit configurations"
2085 depends on CPU_R10000 && 64BIT
2086 help
2087 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2088 previous 64-bit processors which only supported 40 bit / 1TB. If you
2089 need processes of more than 1TB virtual address space, say Y here.
2090 This will result in additional memory usage, so it is not
2091 recommended for normal users.
2093 config KEXEC
2094 bool "Kexec system call (EXPERIMENTAL)"
2095 depends on EXPERIMENTAL
2096 help
2097 kexec is a system call that implements the ability to shutdown your
2098 current kernel, and to start another kernel. It is like a reboot
2099 but it is independent of the system firmware. And like a reboot
2100 you can start any kernel with it, not just Linux.
2102 The name comes from the similarity to the exec system call.
2104 It is an ongoing process to be certain the hardware in a machine
2105 is properly shutdown, so do not be surprised if this code does not
2106 initially work for you. It may help to enable device hotplugging
2107 support. As of this writing the exact hardware interface is
2108 strongly in flux, so no good recommendation can be made.
2110 config SECCOMP
2111 bool "Enable seccomp to safely compute untrusted bytecode"
2112 depends on PROC_FS
2113 default y
2114 help
2115 This kernel feature is useful for number crunching applications
2116 that may need to compute untrusted bytecode during their
2117 execution. By using pipes or other transports made available to
2118 the process as file descriptors supporting the read/write
2119 syscalls, it's possible to isolate those applications in
2120 their own address space using seccomp. Once seccomp is
2121 enabled via /proc/<pid>/seccomp, it cannot be disabled
2122 and the task is only allowed to execute a few safe syscalls
2123 defined by each seccomp mode.
2125 If unsure, say Y. Only embedded should say N here.
2127 endmenu
2129 config LOCKDEP_SUPPORT
2130 bool
2131 default y
2133 config STACKTRACE_SUPPORT
2134 bool
2135 default y
2137 source "init/Kconfig"
2139 source "kernel/Kconfig.freezer"
2141 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2143 config HW_HAS_EISA
2144 bool
2145 config HW_HAS_PCI
2146 bool
2148 config PCI
2149 bool "Support for PCI controller"
2150 depends on HW_HAS_PCI
2151 select PCI_DOMAINS
2152 help
2153 Find out whether you have a PCI motherboard. PCI is the name of a
2154 bus system, i.e. the way the CPU talks to the other stuff inside
2155 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2156 say Y, otherwise N.
2158 config PCI_DOMAINS
2159 bool
2161 source "drivers/pci/Kconfig"
2163 #
2164 # ISA support is now enabled via select. Too many systems still have the one
2165 # or other ISA chip on the board that users don't know about so don't expect
2166 # users to choose the right thing ...
2167 #
2168 config ISA
2169 bool
2171 config EISA
2172 bool "EISA support"
2173 depends on HW_HAS_EISA
2174 select ISA
2175 select GENERIC_ISA_DMA
2176 ---help---
2177 The Extended Industry Standard Architecture (EISA) bus was
2178 developed as an open alternative to the IBM MicroChannel bus.
2180 The EISA bus provided some of the features of the IBM MicroChannel
2181 bus while maintaining backward compatibility with cards made for
2182 the older ISA bus. The EISA bus saw limited use between 1988 and
2183 1995 when it was made obsolete by the PCI bus.
2185 Say Y here if you are building a kernel for an EISA-based machine.
2187 Otherwise, say N.
2189 source "drivers/eisa/Kconfig"
2191 config TC
2192 bool "TURBOchannel support"
2193 depends on MACH_DECSTATION
2194 help
2195 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2196 processors. Documentation on writing device drivers for TurboChannel
2197 is available at:
2198 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2200 #config ACCESSBUS
2201 # bool "Access.Bus support"
2202 # depends on TC
2204 config MMU
2205 bool
2206 default y
2208 config I8253
2209 bool
2210 select MIPS_EXTERNAL_TIMER
2212 config ZONE_DMA32
2213 bool
2215 source "drivers/pcmcia/Kconfig"
2217 source "drivers/pci/hotplug/Kconfig"
2219 endmenu
2221 menu "Executable file formats"
2223 source "fs/Kconfig.binfmt"
2225 config TRAD_SIGNALS
2226 bool
2228 config MIPS32_COMPAT
2229 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2230 depends on 64BIT
2231 help
2232 Select this option if you want Linux/MIPS 32-bit binary
2233 compatibility. Since all software available for Linux/MIPS is
2234 currently 32-bit you should say Y here.
2236 config COMPAT
2237 bool
2238 depends on MIPS32_COMPAT
2239 default y
2241 config SYSVIPC_COMPAT
2242 bool
2243 depends on COMPAT && SYSVIPC
2244 default y
2246 config MIPS32_O32
2247 bool "Kernel support for o32 binaries"
2248 depends on MIPS32_COMPAT
2249 help
2250 Select this option if you want to run o32 binaries. These are pure
2251 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2252 existing binaries are in this format.
2254 If unsure, say Y.
2256 config MIPS32_N32
2257 bool "Kernel support for n32 binaries"
2258 depends on MIPS32_COMPAT
2259 help
2260 Select this option if you want to run n32 binaries. These are
2261 64-bit binaries using 32-bit quantities for addressing and certain
2262 data that would normally be 64-bit. They are used in special
2263 cases.
2265 If unsure, say N.
2267 config BINFMT_ELF32
2268 bool
2269 default y if MIPS32_O32 || MIPS32_N32
2271 endmenu
2273 menu "Power management options"
2275 config ARCH_HIBERNATION_POSSIBLE
2276 def_bool y
2277 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2279 config ARCH_SUSPEND_POSSIBLE
2280 def_bool y
2281 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2283 source "kernel/power/Kconfig"
2285 endmenu
2287 source "arch/mips/kernel/cpufreq/Kconfig"
2289 source "net/Kconfig"
2291 source "drivers/Kconfig"
2293 source "fs/Kconfig"
2295 source "arch/mips/Kconfig.debug"
2297 source "security/Kconfig"
2299 source "crypto/Kconfig"
2301 source "lib/Kconfig"