1config MIPS
2 bool
3 default y
4 select HAVE_GENERIC_DMA_COHERENT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_IRQ_WORK
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
10 select HAVE_ARCH_KGDB
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
17 select HAVE_KPROBES
18 select HAVE_KRETPROBES
19 select RTC_LIB if !MACH_LOONGSON
20 select GENERIC_ATOMIC64 if !64BIT
21 select HAVE_DMA_ATTRS
22 select HAVE_DMA_API_DEBUG
23 select HAVE_GENERIC_HARDIRQS
24 select GENERIC_IRQ_PROBE
25 select HAVE_ARCH_JUMP_LABEL
26
27menu "Machine selection"
28
29config ZONE_DMA
30 bool
31
32choice
33 prompt "System type"
34 default SGI_IP22
35
36config MIPS_ALCHEMY
37 bool "Alchemy processor based machines"
38 select 64BIT_PHYS_ADDR
39 select CEVT_R4K_LIB
40 select CSRC_R4K_LIB
41 select IRQ_CPU
42 select SYS_HAS_CPU_MIPS32_R1
43 select SYS_SUPPORTS_32BIT_KERNEL
44 select SYS_SUPPORTS_APM_EMULATION
45 select GENERIC_GPIO
46 select ARCH_WANT_OPTIONAL_GPIOLIB
47 select SYS_SUPPORTS_ZBOOT
48
49config AR7
50 bool "Texas Instruments AR7"
51 select BOOT_ELF32
52 select DMA_NONCOHERENT
53 select CEVT_R4K
54 select CSRC_R4K
55 select IRQ_CPU
56 select NO_EXCEPT_FILL
57 select SWAP_IO_SPACE
58 select SYS_HAS_CPU_MIPS32_R1
59 select SYS_HAS_EARLY_PRINTK
60 select SYS_SUPPORTS_32BIT_KERNEL
61 select SYS_SUPPORTS_LITTLE_ENDIAN
62 select SYS_SUPPORTS_ZBOOT_UART16550
63 select ARCH_REQUIRE_GPIOLIB
64 select GCD
65 select VLYNQ
66 help
67 Support for the Texas Instruments AR7 System-on-a-Chip
68 family: TNETD7100, 7200 and 7300.
69
70config ATH79
71 bool "Atheros AR71XX/AR724X/AR913X based boards"
72 select ARCH_REQUIRE_GPIOLIB
73 select BOOT_RAW
74 select CEVT_R4K
75 select CSRC_R4K
76 select DMA_NONCOHERENT
77 select IRQ_CPU
78 select MIPS_MACHINE
79 select SYS_HAS_CPU_MIPS32_R2
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_BIG_ENDIAN
83 help
84 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
85
86config BCM47XX
87 bool "Broadcom BCM47XX based boards"
88 select CEVT_R4K
89 select CSRC_R4K
90 select DMA_NONCOHERENT
91 select HW_HAS_PCI
92 select IRQ_CPU
93 select SYS_HAS_CPU_MIPS32_R1
94 select SYS_SUPPORTS_32BIT_KERNEL
95 select SYS_SUPPORTS_LITTLE_ENDIAN
96 select SSB
97 select SSB_DRIVER_MIPS
98 select SSB_DRIVER_EXTIF
99 select SSB_EMBEDDED
100 select SSB_B43_PCI_BRIDGE if PCI
101 select SSB_PCICORE_HOSTMODE if PCI
102 select GENERIC_GPIO
103 select SYS_HAS_EARLY_PRINTK
104 select CFE
105 help
106 Support for BCM47XX based boards
107
108config BCM63XX
109 bool "Broadcom BCM63XX based boards"
110 select CEVT_R4K
111 select CSRC_R4K
112 select DMA_NONCOHERENT
113 select IRQ_CPU
114 select SYS_HAS_CPU_MIPS32_R1
115 select SYS_SUPPORTS_32BIT_KERNEL
116 select SYS_SUPPORTS_BIG_ENDIAN
117 select SYS_HAS_EARLY_PRINTK
118 select SWAP_IO_SPACE
119 select ARCH_REQUIRE_GPIOLIB
120 help
121 Support for BCM63XX based boards
122
123config MIPS_COBALT
124 bool "Cobalt Server"
125 select CEVT_R4K
126 select CSRC_R4K
127 select CEVT_GT641XX
128 select DMA_NONCOHERENT
129 select HW_HAS_PCI
130 select I8253
131 select I8259
132 select IRQ_CPU
133 select IRQ_GT641XX
134 select PCI_GT64XXX_PCI0
135 select PCI
136 select SYS_HAS_CPU_NEVADA
137 select SYS_HAS_EARLY_PRINTK
138 select SYS_SUPPORTS_32BIT_KERNEL
139 select SYS_SUPPORTS_64BIT_KERNEL
140 select SYS_SUPPORTS_LITTLE_ENDIAN
141
142config MACH_DECSTATION
143 bool "DECstations"
144 select BOOT_ELF32
145 select CEVT_DS1287
146 select CEVT_R4K
147 select CSRC_IOASIC
148 select CSRC_R4K
149 select CPU_DADDI_WORKAROUNDS if 64BIT
150 select CPU_R4000_WORKAROUNDS if 64BIT
151 select CPU_R4400_WORKAROUNDS if 64BIT
152 select DMA_NONCOHERENT
153 select NO_IOPORT
154 select IRQ_CPU
155 select SYS_HAS_CPU_R3000
156 select SYS_HAS_CPU_R4X00
157 select SYS_SUPPORTS_32BIT_KERNEL
158 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
159 select SYS_SUPPORTS_LITTLE_ENDIAN
160 select SYS_SUPPORTS_128HZ
161 select SYS_SUPPORTS_256HZ
162 select SYS_SUPPORTS_1024HZ
163 help
164 This enables support for DEC's MIPS based workstations. For details
165 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
166 DECstation porting pages on <http://decstation.unix-ag.org/>.
167
168 If you have one of the following DECstation Models you definitely
169 want to choose R4xx0 for the CPU Type:
170
171 DECstation 5000/50
172 DECstation 5000/150
173 DECstation 5000/260
174 DECsystem 5900/260
175
176 otherwise choose R3000.
177
178config MACH_JAZZ
179 bool "Jazz family of machines"
180 select ARC
181 select ARC32
182 select ARCH_MAY_HAVE_PC_FDC
183 select CEVT_R4K
184 select CSRC_R4K
185 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
186 select GENERIC_ISA_DMA
187 select IRQ_CPU
188 select I8253
189 select I8259
190 select ISA
191 select SYS_HAS_CPU_R4X00
192 select SYS_SUPPORTS_32BIT_KERNEL
193 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
194 select SYS_SUPPORTS_100HZ
195 help
196 This a family of machines based on the MIPS R4030 chipset which was
197 used by several vendors to build RISC/os and Windows NT workstations.
198 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
199 Olivetti M700-10 workstations.
200
201config MACH_JZ4740
202 bool "Ingenic JZ4740 based machines"
203 select SYS_HAS_CPU_MIPS32_R1
204 select SYS_SUPPORTS_32BIT_KERNEL
205 select SYS_SUPPORTS_LITTLE_ENDIAN
206 select DMA_NONCOHERENT
207 select IRQ_CPU
208 select GENERIC_GPIO
209 select ARCH_REQUIRE_GPIOLIB
210 select SYS_HAS_EARLY_PRINTK
211 select HAVE_PWM
212 select HAVE_CLK
213
214config LASAT
215 bool "LASAT Networks platforms"
216 select CEVT_R4K
217 select CSRC_R4K
218 select DMA_NONCOHERENT
219 select SYS_HAS_EARLY_PRINTK
220 select HW_HAS_PCI
221 select IRQ_CPU
222 select PCI_GT64XXX_PCI0
223 select MIPS_NILE4
224 select R5000_CPU_SCACHE
225 select SYS_HAS_CPU_R5000
226 select SYS_SUPPORTS_32BIT_KERNEL
227 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
228 select SYS_SUPPORTS_LITTLE_ENDIAN
229
230config MACH_LOONGSON
231 bool "Loongson family of machines"
232 select SYS_SUPPORTS_ZBOOT
233 help
234 This enables the support of Loongson family of machines.
235
236 Loongson is a family of general-purpose MIPS-compatible CPUs.
237 developed at Institute of Computing Technology (ICT),
238 Chinese Academy of Sciences (CAS) in the People's Republic
239 of China. The chief architect is Professor Weiwu Hu.
240
241config MIPS_MALTA
242 bool "MIPS Malta board"
243 select ARCH_MAY_HAVE_PC_FDC
244 select BOOT_ELF32
245 select BOOT_RAW
246 select CEVT_R4K
247 select CSRC_R4K
248 select DMA_NONCOHERENT
249 select GENERIC_ISA_DMA
250 select IRQ_CPU
251 select IRQ_GIC
252 select HW_HAS_PCI
253 select I8253
254 select I8259
255 select MIPS_BOARDS_GEN
256 select MIPS_BONITO64
257 select MIPS_CPU_SCACHE
258 select PCI_GT64XXX_PCI0
259 select MIPS_MSC
260 select SWAP_IO_SPACE
261 select SYS_HAS_CPU_MIPS32_R1
262 select SYS_HAS_CPU_MIPS32_R2
263 select SYS_HAS_CPU_MIPS64_R1
264 select SYS_HAS_CPU_NEVADA
265 select SYS_HAS_CPU_RM7000
266 select SYS_HAS_EARLY_PRINTK
267 select SYS_SUPPORTS_32BIT_KERNEL
268 select SYS_SUPPORTS_64BIT_KERNEL
269 select SYS_SUPPORTS_BIG_ENDIAN
270 select SYS_SUPPORTS_LITTLE_ENDIAN
271 select SYS_SUPPORTS_MIPS_CMP
272 select SYS_SUPPORTS_MULTITHREADING
273 select SYS_SUPPORTS_SMARTMIPS
274 select SYS_SUPPORTS_ZBOOT
275 help
276 This enables support for the MIPS Technologies Malta evaluation
277 board.
278
279config MIPS_SIM
280 bool 'MIPS simulator (MIPSsim)'
281 select CEVT_R4K
282 select CSRC_R4K
283 select DMA_NONCOHERENT
284 select SYS_HAS_EARLY_PRINTK
285 select IRQ_CPU
286 select BOOT_RAW
287 select SYS_HAS_CPU_MIPS32_R1
288 select SYS_HAS_CPU_MIPS32_R2
289 select SYS_HAS_EARLY_PRINTK
290 select SYS_SUPPORTS_32BIT_KERNEL
291 select SYS_SUPPORTS_BIG_ENDIAN
292 select SYS_SUPPORTS_MULTITHREADING
293 select SYS_SUPPORTS_LITTLE_ENDIAN
294 help
295 This option enables support for MIPS Technologies MIPSsim software
296 emulator.
297
298config NEC_MARKEINS
299 bool "NEC EMMA2RH Mark-eins board"
300 select SOC_EMMA2RH
301 select HW_HAS_PCI
302 help
303 This enables support for the NEC Electronics Mark-eins boards.
304
305config MACH_VR41XX
306 bool "NEC VR4100 series based machines"
307 select CEVT_R4K
308 select CSRC_R4K
309 select SYS_HAS_CPU_VR41XX
310 select ARCH_REQUIRE_GPIOLIB
311
312config NXP_STB220
313 bool "NXP STB220 board"
314 select SOC_PNX833X
315 help
316 Support for NXP Semiconductors STB220 Development Board.
317
318config NXP_STB225
319 bool "NXP 225 board"
320 select SOC_PNX833X
321 select SOC_PNX8335
322 help
323 Support for NXP Semiconductors STB225 Development Board.
324
325config PNX8550_JBS
326 bool "NXP PNX8550 based JBS board"
327 select PNX8550
328 select SYS_SUPPORTS_LITTLE_ENDIAN
329
330config PNX8550_STB810
331 bool "NXP PNX8550 based STB810 board"
332 select PNX8550
333 select SYS_SUPPORTS_LITTLE_ENDIAN
334
335config PMC_MSP
336 bool "PMC-Sierra MSP chipsets"
337 depends on EXPERIMENTAL
338 select CEVT_R4K
339 select CSRC_R4K
340 select DMA_NONCOHERENT
341 select SWAP_IO_SPACE
342 select NO_EXCEPT_FILL
343 select BOOT_RAW
344 select SYS_HAS_CPU_MIPS32_R1
345 select SYS_HAS_CPU_MIPS32_R2
346 select SYS_SUPPORTS_32BIT_KERNEL
347 select SYS_SUPPORTS_BIG_ENDIAN
348 select IRQ_CPU
349 select SERIAL_8250
350 select SERIAL_8250_CONSOLE
351 help
352 This adds support for the PMC-Sierra family of Multi-Service
353 Processor System-On-A-Chips. These parts include a number
354 of integrated peripherals, interfaces and DSPs in addition to
355 a variety of MIPS cores.
356
357config PMC_YOSEMITE
358 bool "PMC-Sierra Yosemite eval board"
359 select CEVT_R4K
360 select CSRC_R4K
361 select DMA_COHERENT
362 select HW_HAS_PCI
363 select IRQ_CPU
364 select IRQ_CPU_RM7K
365 select IRQ_CPU_RM9K
366 select SWAP_IO_SPACE
367 select SYS_HAS_CPU_RM9000
368 select SYS_HAS_EARLY_PRINTK
369 select SYS_SUPPORTS_32BIT_KERNEL
370 select SYS_SUPPORTS_64BIT_KERNEL
371 select SYS_SUPPORTS_BIG_ENDIAN
372 select SYS_SUPPORTS_HIGHMEM
373 select SYS_SUPPORTS_SMP
374 help
375 Yosemite is an evaluation board for the RM9000x2 processor
376 manufactured by PMC-Sierra.
377
378config POWERTV
379 bool "Cisco PowerTV"
380 select BOOT_ELF32
381 select CEVT_R4K
382 select CPU_MIPSR2_IRQ_VI
383 select CPU_MIPSR2_IRQ_EI
384 select CSRC_POWERTV
385 select DMA_NONCOHERENT
386 select HW_HAS_PCI
387 select SYS_HAS_EARLY_PRINTK
388 select SYS_HAS_CPU_MIPS32_R2
389 select SYS_SUPPORTS_32BIT_KERNEL
390 select SYS_SUPPORTS_BIG_ENDIAN
391 select SYS_SUPPORTS_HIGHMEM
392 select USB_OHCI_LITTLE_ENDIAN
393 help
394 This enables support for the Cisco PowerTV Platform.
395
396config SGI_IP22
397 bool "SGI IP22 (Indy/Indigo2)"
398 select ARC
399 select ARC32
400 select BOOT_ELF32
401 select CEVT_R4K
402 select CSRC_R4K
403 select DEFAULT_SGI_PARTITION
404 select DMA_NONCOHERENT
405 select HW_HAS_EISA
406 select I8253
407 select I8259
408 select IP22_CPU_SCACHE
409 select IRQ_CPU
410 select GENERIC_ISA_DMA_SUPPORT_BROKEN
411 select SGI_HAS_I8042
412 select SGI_HAS_INDYDOG
413 select SGI_HAS_HAL2
414 select SGI_HAS_SEEQ
415 select SGI_HAS_WD93
416 select SGI_HAS_ZILOG
417 select SWAP_IO_SPACE
418 select SYS_HAS_CPU_R4X00
419 select SYS_HAS_CPU_R5000
420
421
422
423
424
425
426
427
428 select SYS_SUPPORTS_32BIT_KERNEL
429 select SYS_SUPPORTS_64BIT_KERNEL
430 select SYS_SUPPORTS_BIG_ENDIAN
431 help
432 This are the SGI Indy, Challenge S and Indigo2, as well as certain
433 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
434 that runs on these, say Y here.
435
436config SGI_IP27
437 bool "SGI IP27 (Origin200/2000)"
438 select ARC
439 select ARC64
440 select BOOT_ELF64
441 select DEFAULT_SGI_PARTITION
442 select DMA_COHERENT
443 select SYS_HAS_EARLY_PRINTK
444 select HW_HAS_PCI
445 select NR_CPUS_DEFAULT_64
446 select SYS_HAS_CPU_R10000
447 select SYS_SUPPORTS_64BIT_KERNEL
448 select SYS_SUPPORTS_BIG_ENDIAN
449 select SYS_SUPPORTS_NUMA
450 select SYS_SUPPORTS_SMP
451 help
452 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
453 workstations. To compile a Linux kernel that runs on these, say Y
454 here.
455
456config SGI_IP28
457 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
458 depends on EXPERIMENTAL
459 select ARC
460 select ARC64
461 select BOOT_ELF64
462 select CEVT_R4K
463 select CSRC_R4K
464 select DEFAULT_SGI_PARTITION
465 select DMA_NONCOHERENT
466 select GENERIC_ISA_DMA_SUPPORT_BROKEN
467 select IRQ_CPU
468 select HW_HAS_EISA
469 select I8253
470 select I8259
471 select SGI_HAS_I8042
472 select SGI_HAS_INDYDOG
473 select SGI_HAS_HAL2
474 select SGI_HAS_SEEQ
475 select SGI_HAS_WD93
476 select SGI_HAS_ZILOG
477 select SWAP_IO_SPACE
478 select SYS_HAS_CPU_R10000
479
480
481
482
483
484
485
486
487 select SYS_SUPPORTS_64BIT_KERNEL
488 select SYS_SUPPORTS_BIG_ENDIAN
489 help
490 This is the SGI Indigo2 with R10000 processor. To compile a Linux
491 kernel that runs on these, say Y here.
492
493config SGI_IP32
494 bool "SGI IP32 (O2)"
495 select ARC
496 select ARC32
497 select BOOT_ELF32
498 select CEVT_R4K
499 select CSRC_R4K
500 select DMA_NONCOHERENT
501 select HW_HAS_PCI
502 select IRQ_CPU
503 select R5000_CPU_SCACHE
504 select RM7000_CPU_SCACHE
505 select SYS_HAS_CPU_R5000
506 select SYS_HAS_CPU_R10000 if BROKEN
507 select SYS_HAS_CPU_RM7000
508 select SYS_HAS_CPU_NEVADA
509 select SYS_SUPPORTS_64BIT_KERNEL
510 select SYS_SUPPORTS_BIG_ENDIAN
511 help
512 If you want this kernel to run on SGI O2 workstation, say Y here.
513
514config SIBYTE_CRHINE
515 bool "Sibyte BCM91120C-CRhine"
516 depends on EXPERIMENTAL
517 select BOOT_ELF32
518 select DMA_COHERENT
519 select SIBYTE_BCM1120
520 select SWAP_IO_SPACE
521 select SYS_HAS_CPU_SB1
522 select SYS_SUPPORTS_BIG_ENDIAN
523 select SYS_SUPPORTS_LITTLE_ENDIAN
524
525config SIBYTE_CARMEL
526 bool "Sibyte BCM91120x-Carmel"
527 depends on EXPERIMENTAL
528 select BOOT_ELF32
529 select DMA_COHERENT
530 select SIBYTE_BCM1120
531 select SWAP_IO_SPACE
532 select SYS_HAS_CPU_SB1
533 select SYS_SUPPORTS_BIG_ENDIAN
534 select SYS_SUPPORTS_LITTLE_ENDIAN
535
536config SIBYTE_CRHONE
537 bool "Sibyte BCM91125C-CRhone"
538 depends on EXPERIMENTAL
539 select BOOT_ELF32
540 select DMA_COHERENT
541 select SIBYTE_BCM1125
542 select SWAP_IO_SPACE
543 select SYS_HAS_CPU_SB1
544 select SYS_SUPPORTS_BIG_ENDIAN
545 select SYS_SUPPORTS_HIGHMEM
546 select SYS_SUPPORTS_LITTLE_ENDIAN
547
548config SIBYTE_RHONE
549 bool "Sibyte BCM91125E-Rhone"
550 depends on EXPERIMENTAL
551 select BOOT_ELF32
552 select DMA_COHERENT
553 select SIBYTE_BCM1125H
554 select SWAP_IO_SPACE
555 select SYS_HAS_CPU_SB1
556 select SYS_SUPPORTS_BIG_ENDIAN
557 select SYS_SUPPORTS_LITTLE_ENDIAN
558
559config SIBYTE_SWARM
560 bool "Sibyte BCM91250A-SWARM"
561 select BOOT_ELF32
562 select DMA_COHERENT
563 select HAVE_PATA_PLATFORM
564 select NR_CPUS_DEFAULT_2
565 select SIBYTE_SB1250
566 select SWAP_IO_SPACE
567 select SYS_HAS_CPU_SB1
568 select SYS_SUPPORTS_BIG_ENDIAN
569 select SYS_SUPPORTS_HIGHMEM
570 select SYS_SUPPORTS_LITTLE_ENDIAN
571 select ZONE_DMA32 if 64BIT
572
573config SIBYTE_LITTLESUR
574 bool "Sibyte BCM91250C2-LittleSur"
575 depends on EXPERIMENTAL
576 select BOOT_ELF32
577 select DMA_COHERENT
578 select HAVE_PATA_PLATFORM
579 select NR_CPUS_DEFAULT_2
580 select SIBYTE_SB1250
581 select SWAP_IO_SPACE
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_HIGHMEM
585 select SYS_SUPPORTS_LITTLE_ENDIAN
586
587config SIBYTE_SENTOSA
588 bool "Sibyte BCM91250E-Sentosa"
589 depends on EXPERIMENTAL
590 select BOOT_ELF32
591 select DMA_COHERENT
592 select NR_CPUS_DEFAULT_2
593 select SIBYTE_SB1250
594 select SWAP_IO_SPACE
595 select SYS_HAS_CPU_SB1
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_LITTLE_ENDIAN
598
599config SIBYTE_BIGSUR
600 bool "Sibyte BCM91480B-BigSur"
601 select BOOT_ELF32
602 select DMA_COHERENT
603 select NR_CPUS_DEFAULT_4
604 select SIBYTE_BCM1x80
605 select SWAP_IO_SPACE
606 select SYS_HAS_CPU_SB1
607 select SYS_SUPPORTS_BIG_ENDIAN
608 select SYS_SUPPORTS_HIGHMEM
609 select SYS_SUPPORTS_LITTLE_ENDIAN
610 select ZONE_DMA32 if 64BIT
611
612config SNI_RM
613 bool "SNI RM200/300/400"
614 select ARC if CPU_LITTLE_ENDIAN
615 select ARC32 if CPU_LITTLE_ENDIAN
616 select SNIPROM if CPU_BIG_ENDIAN
617 select ARCH_MAY_HAVE_PC_FDC
618 select BOOT_ELF32
619 select CEVT_R4K
620 select CSRC_R4K
621 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
622 select DMA_NONCOHERENT
623 select GENERIC_ISA_DMA
624 select HW_HAS_EISA
625 select HW_HAS_PCI
626 select IRQ_CPU
627 select I8253
628 select I8259
629 select ISA
630 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
631 select SYS_HAS_CPU_R4X00
632 select SYS_HAS_CPU_R5000
633 select SYS_HAS_CPU_R10000
634 select R5000_CPU_SCACHE
635 select SYS_HAS_EARLY_PRINTK
636 select SYS_SUPPORTS_32BIT_KERNEL
637 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
638 select SYS_SUPPORTS_BIG_ENDIAN
639 select SYS_SUPPORTS_HIGHMEM
640 select SYS_SUPPORTS_LITTLE_ENDIAN
641 help
642 The SNI RM200/300/400 are MIPS-based machines manufactured by
643 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
644 Technology and now in turn merged with Fujitsu. Say Y here to
645 support this machine type.
646
647config MACH_TX39XX
648 bool "Toshiba TX39 series based machines"
649
650config MACH_TX49XX
651 bool "Toshiba TX49 series based machines"
652
653config MIKROTIK_RB532
654 bool "Mikrotik RB532 boards"
655 select CEVT_R4K
656 select CSRC_R4K
657 select DMA_NONCOHERENT
658 select HW_HAS_PCI
659 select IRQ_CPU
660 select SYS_HAS_CPU_MIPS32_R1
661 select SYS_SUPPORTS_32BIT_KERNEL
662 select SYS_SUPPORTS_LITTLE_ENDIAN
663 select SWAP_IO_SPACE
664 select BOOT_RAW
665 select ARCH_REQUIRE_GPIOLIB
666 help
667 Support the Mikrotik(tm) RouterBoard 532 series,
668 based on the IDT RC32434 SoC.
669
670config WR_PPMC
671 bool "Wind River PPMC board"
672 select CEVT_R4K
673 select CSRC_R4K
674 select IRQ_CPU
675 select BOOT_ELF32
676 select DMA_NONCOHERENT
677 select HW_HAS_PCI
678 select PCI_GT64XXX_PCI0
679 select SWAP_IO_SPACE
680 select SYS_HAS_CPU_MIPS32_R1
681 select SYS_HAS_CPU_MIPS32_R2
682 select SYS_HAS_CPU_MIPS64_R1
683 select SYS_HAS_CPU_NEVADA
684 select SYS_HAS_CPU_RM7000
685 select SYS_SUPPORTS_32BIT_KERNEL
686 select SYS_SUPPORTS_64BIT_KERNEL
687 select SYS_SUPPORTS_BIG_ENDIAN
688 select SYS_SUPPORTS_LITTLE_ENDIAN
689 help
690 This enables support for the Wind River MIPS32 4KC PPMC evaluation
691 board, which is based on GT64120 bridge chip.
692
693config CAVIUM_OCTEON_SIMULATOR
694 bool "Cavium Networks Octeon Simulator"
695 select CEVT_R4K
696 select 64BIT_PHYS_ADDR
697 select DMA_COHERENT
698 select SYS_SUPPORTS_64BIT_KERNEL
699 select SYS_SUPPORTS_BIG_ENDIAN
700 select SYS_SUPPORTS_HIGHMEM
701 select SYS_SUPPORTS_HOTPLUG_CPU
702 select SYS_HAS_CPU_CAVIUM_OCTEON
703 help
704 The Octeon simulator is software performance model of the Cavium
705 Octeon Processor. It supports simulating Octeon processors on x86
706 hardware.
707
708config CAVIUM_OCTEON_REFERENCE_BOARD
709 bool "Cavium Networks Octeon reference board"
710 select CEVT_R4K
711 select 64BIT_PHYS_ADDR
712 select DMA_COHERENT
713 select SYS_SUPPORTS_64BIT_KERNEL
714 select SYS_SUPPORTS_BIG_ENDIAN
715 select SYS_SUPPORTS_HIGHMEM
716 select SYS_SUPPORTS_HOTPLUG_CPU
717 select SYS_HAS_EARLY_PRINTK
718 select SYS_HAS_CPU_CAVIUM_OCTEON
719 select SWAP_IO_SPACE
720 select HW_HAS_PCI
721 select ARCH_SUPPORTS_MSI
722 select ZONE_DMA32
723 select USB_ARCH_HAS_OHCI
724 select USB_ARCH_HAS_EHCI
725 help
726 This option supports all of the Octeon reference boards from Cavium
727 Networks. It builds a kernel that dynamically determines the Octeon
728 CPU type and supports all known board reference implementations.
729 Some of the supported boards are:
730 EBT3000
731 EBH3000
732 EBH3100
733 Thunder
734 Kodama
735 Hikari
736 Say Y here for most Octeon reference boards.
737
738endchoice
739
740source "arch/mips/alchemy/Kconfig"
741source "arch/mips/ath79/Kconfig"
742source "arch/mips/bcm63xx/Kconfig"
743source "arch/mips/jazz/Kconfig"
744source "arch/mips/jz4740/Kconfig"
745source "arch/mips/lasat/Kconfig"
746source "arch/mips/pmc-sierra/Kconfig"
747source "arch/mips/powertv/Kconfig"
748source "arch/mips/sgi-ip27/Kconfig"
749source "arch/mips/sibyte/Kconfig"
750source "arch/mips/txx9/Kconfig"
751source "arch/mips/vr41xx/Kconfig"
752source "arch/mips/cavium-octeon/Kconfig"
753source "arch/mips/loongson/Kconfig"
754
755endmenu
756
757config RWSEM_GENERIC_SPINLOCK
758 bool
759 default y
760
761config RWSEM_XCHGADD_ALGORITHM
762 bool
763
764config ARCH_HAS_ILOG2_U32
765 bool
766 default n
767
768config ARCH_HAS_ILOG2_U64
769 bool
770 default n
771
772config ARCH_SUPPORTS_OPROFILE
773 bool
774 default y if !MIPS_MT_SMTC
775
776config GENERIC_FIND_NEXT_BIT
777 bool
778 default y
779
780config GENERIC_HWEIGHT
781 bool
782 default y
783
784config GENERIC_CALIBRATE_DELAY
785 bool
786 default y
787
788config GENERIC_CLOCKEVENTS
789 bool
790 default y
791
792config GENERIC_CMOS_UPDATE
793 bool
794 default y
795
796config SCHED_OMIT_FRAME_POINTER
797 bool
798 default y
799
800
801
802
803config ARC
804 bool
805
806config ARCH_MAY_HAVE_PC_FDC
807 bool
808
809config BOOT_RAW
810 bool
811
812config CEVT_BCM1480
813 bool
814
815config CEVT_DS1287
816 bool
817
818config CEVT_GT641XX
819 bool
820
821config CEVT_R4K_LIB
822 bool
823
824config CEVT_R4K
825 select CEVT_R4K_LIB
826 bool
827
828config CEVT_SB1250
829 bool
830
831config CEVT_TXX9
832 bool
833
834config CSRC_BCM1480
835 bool
836
837config CSRC_IOASIC
838 bool
839
840config CSRC_POWERTV
841 bool
842
843config CSRC_R4K_LIB
844 bool
845
846config CSRC_R4K
847 select CSRC_R4K_LIB
848 bool
849
850config CSRC_SB1250
851 bool
852
853config GPIO_TXX9
854 select GENERIC_GPIO
855 select ARCH_REQUIRE_GPIOLIB
856 bool
857
858config CFE
859 bool
860
861config DMA_COHERENT
862 bool
863
864config DMA_NONCOHERENT
865 bool
866 select NEED_DMA_MAP_STATE
867
868config NEED_DMA_MAP_STATE
869 bool
870
871config SYS_HAS_EARLY_PRINTK
872 bool
873
874config HOTPLUG_CPU
875 bool "Support for hot-pluggable CPUs"
876 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
877 help
878 Say Y here to allow turning CPUs off and on. CPUs can be
879 controlled through /sys/devices/system/cpu.
880 (Note: power management support will enable this option
881 automatically on SMP systems. )
882 Say N if you want to disable CPU hotplug.
883
884config SYS_SUPPORTS_HOTPLUG_CPU
885 bool
886
887config I8259
888 bool
889
890config MIPS_BONITO64
891 bool
892
893config MIPS_MSC
894 bool
895
896config MIPS_NILE4
897 bool
898
899config MIPS_DISABLE_OBSOLETE_IDE
900 bool
901
902config SYNC_R4K
903 bool
904
905config MIPS_MACHINE
906 def_bool n
907
908config NO_IOPORT
909 def_bool n
910
911config GENERIC_ISA_DMA
912 bool
913 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
914 select ISA_DMA_API
915
916config GENERIC_ISA_DMA_SUPPORT_BROKEN
917 bool
918 select GENERIC_ISA_DMA
919
920config ISA_DMA_API
921 bool
922
923config GENERIC_GPIO
924 bool
925
926
927
928
929
930
931choice
932 prompt "Endianess selection"
933 help
934 Some MIPS machines can be configured for either little or big endian
935 byte order. These modes require different kernels and a different
936 Linux distribution. In general there is one preferred byteorder for a
937 particular system but some systems are just as commonly used in the
938 one or the other endianness.
939
940config CPU_BIG_ENDIAN
941 bool "Big endian"
942 depends on SYS_SUPPORTS_BIG_ENDIAN
943
944config CPU_LITTLE_ENDIAN
945 bool "Little endian"
946 depends on SYS_SUPPORTS_LITTLE_ENDIAN
947 help
948
949endchoice
950
951config EXPORT_UASM
952 bool
953
954config SYS_SUPPORTS_APM_EMULATION
955 bool
956
957config SYS_SUPPORTS_BIG_ENDIAN
958 bool
959
960config SYS_SUPPORTS_LITTLE_ENDIAN
961 bool
962
963config SYS_SUPPORTS_HUGETLBFS
964 bool
965 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
966 default y
967
968config IRQ_CPU
969 bool
970
971config IRQ_CPU_RM7K
972 bool
973
974config IRQ_CPU_RM9K
975 bool
976
977config IRQ_MSP_SLP
978 bool
979
980config IRQ_MSP_CIC
981 bool
982
983config IRQ_TXX9
984 bool
985
986config IRQ_GT641XX
987 bool
988
989config IRQ_GIC
990 bool
991
992config IRQ_CPU_OCTEON
993 bool
994
995config MIPS_BOARDS_GEN
996 bool
997
998config PCI_GT64XXX_PCI0
999 bool
1000
1001config NO_EXCEPT_FILL
1002 bool
1003
1004config MIPS_RM9122
1005 bool
1006 select SERIAL_RM9000
1007
1008config SOC_EMMA2RH
1009 bool
1010 select CEVT_R4K
1011 select CSRC_R4K
1012 select DMA_NONCOHERENT
1013 select IRQ_CPU
1014 select SWAP_IO_SPACE
1015 select SYS_HAS_CPU_R5500
1016 select SYS_SUPPORTS_32BIT_KERNEL
1017 select SYS_SUPPORTS_64BIT_KERNEL
1018 select SYS_SUPPORTS_BIG_ENDIAN
1019
1020config SOC_PNX833X
1021 bool
1022 select CEVT_R4K
1023 select CSRC_R4K
1024 select IRQ_CPU
1025 select DMA_NONCOHERENT
1026 select SYS_HAS_CPU_MIPS32_R2
1027 select SYS_SUPPORTS_32BIT_KERNEL
1028 select SYS_SUPPORTS_LITTLE_ENDIAN
1029 select SYS_SUPPORTS_BIG_ENDIAN
1030 select GENERIC_GPIO
1031 select CPU_MIPSR2_IRQ_VI
1032
1033config SOC_PNX8335
1034 bool
1035 select SOC_PNX833X
1036
1037config PNX8550
1038 bool
1039 select SOC_PNX8550
1040
1041config SOC_PNX8550
1042 bool
1043 select DMA_NONCOHERENT
1044 select HW_HAS_PCI
1045 select SYS_HAS_CPU_MIPS32_R1
1046 select SYS_HAS_EARLY_PRINTK
1047 select SYS_SUPPORTS_32BIT_KERNEL
1048 select GENERIC_GPIO
1049
1050config SWAP_IO_SPACE
1051 bool
1052
1053config SERIAL_RM9000
1054 bool
1055
1056config SGI_HAS_INDYDOG
1057 bool
1058
1059config SGI_HAS_HAL2
1060 bool
1061
1062config SGI_HAS_SEEQ
1063 bool
1064
1065config SGI_HAS_WD93
1066 bool
1067
1068config SGI_HAS_ZILOG
1069 bool
1070
1071config SGI_HAS_I8042
1072 bool
1073
1074config DEFAULT_SGI_PARTITION
1075 bool
1076
1077config ARC32
1078 bool
1079
1080config SNIPROM
1081 bool
1082
1083config BOOT_ELF32
1084 bool
1085
1086config MIPS_L1_CACHE_SHIFT
1087 int
1088 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1089 default "6" if MIPS_CPU_SCACHE
1090 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1091 default "5"
1092
1093config HAVE_STD_PC_SERIAL_PORT
1094 bool
1095
1096config ARC_CONSOLE
1097 bool "ARC console support"
1098 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1099
1100config ARC_MEMORY
1101 bool
1102 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1103 default y
1104
1105config ARC_PROMLIB
1106 bool
1107 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1108 default y
1109
1110config ARC64
1111 bool
1112
1113config BOOT_ELF64
1114 bool
1115
1116menu "CPU selection"
1117
1118choice
1119 prompt "CPU type"
1120 default CPU_R4X00
1121
1122config CPU_LOONGSON2E
1123 bool "Loongson 2E"
1124 depends on SYS_HAS_CPU_LOONGSON2E
1125 select CPU_LOONGSON2
1126 help
1127 The Loongson 2E processor implements the MIPS III instruction set
1128 with many extensions.
1129
1130 It has an internal FPGA northbridge, which is compatiable to
1131 bonito64.
1132
1133config CPU_LOONGSON2F
1134 bool "Loongson 2F"
1135 depends on SYS_HAS_CPU_LOONGSON2F
1136 select CPU_LOONGSON2
1137 select GENERIC_GPIO
1138 select ARCH_REQUIRE_GPIOLIB
1139 help
1140 The Loongson 2F processor implements the MIPS III instruction set
1141 with many extensions.
1142
1143 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1144 have a similar programming interface with FPGA northbridge used in
1145 Loongson2E.
1146
1147config CPU_MIPS32_R1
1148 bool "MIPS32 Release 1"
1149 depends on SYS_HAS_CPU_MIPS32_R1
1150 select CPU_HAS_PREFETCH
1151 select CPU_SUPPORTS_32BIT_KERNEL
1152 select CPU_SUPPORTS_HIGHMEM
1153 help
1154 Choose this option to build a kernel for release 1 or later of the
1155 MIPS32 architecture. Most modern embedded systems with a 32-bit
1156 MIPS processor are based on a MIPS32 processor. If you know the
1157 specific type of processor in your system, choose those that one
1158 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1159 Release 2 of the MIPS32 architecture is available since several
1160 years so chances are you even have a MIPS32 Release 2 processor
1161 in which case you should choose CPU_MIPS32_R2 instead for better
1162 performance.
1163
1164config CPU_MIPS32_R2
1165 bool "MIPS32 Release 2"
1166 depends on SYS_HAS_CPU_MIPS32_R2
1167 select CPU_HAS_PREFETCH
1168 select CPU_SUPPORTS_32BIT_KERNEL
1169 select CPU_SUPPORTS_HIGHMEM
1170 help
1171 Choose this option to build a kernel for release 2 or later of the
1172 MIPS32 architecture. Most modern embedded systems with a 32-bit
1173 MIPS processor are based on a MIPS32 processor. If you know the
1174 specific type of processor in your system, choose those that one
1175 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1176
1177config CPU_MIPS64_R1
1178 bool "MIPS64 Release 1"
1179 depends on SYS_HAS_CPU_MIPS64_R1
1180 select CPU_HAS_PREFETCH
1181 select CPU_SUPPORTS_32BIT_KERNEL
1182 select CPU_SUPPORTS_64BIT_KERNEL
1183 select CPU_SUPPORTS_HIGHMEM
1184 select CPU_SUPPORTS_HUGEPAGES
1185 help
1186 Choose this option to build a kernel for release 1 or later of the
1187 MIPS64 architecture. Many modern embedded systems with a 64-bit
1188 MIPS processor are based on a MIPS64 processor. If you know the
1189 specific type of processor in your system, choose those that one
1190 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1191 Release 2 of the MIPS64 architecture is available since several
1192 years so chances are you even have a MIPS64 Release 2 processor
1193 in which case you should choose CPU_MIPS64_R2 instead for better
1194 performance.
1195
1196config CPU_MIPS64_R2
1197 bool "MIPS64 Release 2"
1198 depends on SYS_HAS_CPU_MIPS64_R2
1199 select CPU_HAS_PREFETCH
1200 select CPU_SUPPORTS_32BIT_KERNEL
1201 select CPU_SUPPORTS_64BIT_KERNEL
1202 select CPU_SUPPORTS_HIGHMEM
1203 select CPU_SUPPORTS_HUGEPAGES
1204 help
1205 Choose this option to build a kernel for release 2 or later of the
1206 MIPS64 architecture. Many modern embedded systems with a 64-bit
1207 MIPS processor are based on a MIPS64 processor. If you know the
1208 specific type of processor in your system, choose those that one
1209 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1210
1211config CPU_R3000
1212 bool "R3000"
1213 depends on SYS_HAS_CPU_R3000
1214 select CPU_HAS_WB
1215 select CPU_SUPPORTS_32BIT_KERNEL
1216 select CPU_SUPPORTS_HIGHMEM
1217 help
1218 Please make sure to pick the right CPU type. Linux/MIPS is not
1219 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1220 *not* work on R4000 machines and vice versa. However, since most
1221 of the supported machines have an R4000 (or similar) CPU, R4x00
1222 might be a safe bet. If the resulting kernel does not work,
1223 try to recompile with R3000.
1224
1225config CPU_TX39XX
1226 bool "R39XX"
1227 depends on SYS_HAS_CPU_TX39XX
1228 select CPU_SUPPORTS_32BIT_KERNEL
1229
1230config CPU_VR41XX
1231 bool "R41xx"
1232 depends on SYS_HAS_CPU_VR41XX
1233 select CPU_SUPPORTS_32BIT_KERNEL
1234 select CPU_SUPPORTS_64BIT_KERNEL
1235 help
1236 The options selects support for the NEC VR4100 series of processors.
1237 Only choose this option if you have one of these processors as a
1238 kernel built with this option will not run on any other type of
1239 processor or vice versa.
1240
1241config CPU_R4300
1242 bool "R4300"
1243 depends on SYS_HAS_CPU_R4300
1244 select CPU_SUPPORTS_32BIT_KERNEL
1245 select CPU_SUPPORTS_64BIT_KERNEL
1246 help
1247 MIPS Technologies R4300-series processors.
1248
1249config CPU_R4X00
1250 bool "R4x00"
1251 depends on SYS_HAS_CPU_R4X00
1252 select CPU_SUPPORTS_32BIT_KERNEL
1253 select CPU_SUPPORTS_64BIT_KERNEL
1254 help
1255 MIPS Technologies R4000-series processors other than 4300, including
1256 the R4000, R4400, R4600, and 4700.
1257
1258config CPU_TX49XX
1259 bool "R49XX"
1260 depends on SYS_HAS_CPU_TX49XX
1261 select CPU_HAS_PREFETCH
1262 select CPU_SUPPORTS_32BIT_KERNEL
1263 select CPU_SUPPORTS_64BIT_KERNEL
1264
1265config CPU_R5000
1266 bool "R5000"
1267 depends on SYS_HAS_CPU_R5000
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_64BIT_KERNEL
1270 help
1271 MIPS Technologies R5000-series processors other than the Nevada.
1272
1273config CPU_R5432
1274 bool "R5432"
1275 depends on SYS_HAS_CPU_R5432
1276 select CPU_SUPPORTS_32BIT_KERNEL
1277 select CPU_SUPPORTS_64BIT_KERNEL
1278
1279config CPU_R5500
1280 bool "R5500"
1281 depends on SYS_HAS_CPU_R5500
1282 select CPU_SUPPORTS_32BIT_KERNEL
1283 select CPU_SUPPORTS_64BIT_KERNEL
1284 select CPU_SUPPORTS_HUGEPAGES
1285 help
1286 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1287 instruction set.
1288
1289config CPU_R6000
1290 bool "R6000"
1291 depends on EXPERIMENTAL
1292 depends on SYS_HAS_CPU_R6000
1293 select CPU_SUPPORTS_32BIT_KERNEL
1294 help
1295 MIPS Technologies R6000 and R6000A series processors. Note these
1296 processors are extremely rare and the support for them is incomplete.
1297
1298config CPU_NEVADA
1299 bool "RM52xx"
1300 depends on SYS_HAS_CPU_NEVADA
1301 select CPU_SUPPORTS_32BIT_KERNEL
1302 select CPU_SUPPORTS_64BIT_KERNEL
1303 help
1304 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1305
1306config CPU_R8000
1307 bool "R8000"
1308 depends on EXPERIMENTAL
1309 depends on SYS_HAS_CPU_R8000
1310 select CPU_HAS_PREFETCH
1311 select CPU_SUPPORTS_64BIT_KERNEL
1312 help
1313 MIPS Technologies R8000 processors. Note these processors are
1314 uncommon and the support for them is incomplete.
1315
1316config CPU_R10000
1317 bool "R10000"
1318 depends on SYS_HAS_CPU_R10000
1319 select CPU_HAS_PREFETCH
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1322 select CPU_SUPPORTS_HIGHMEM
1323 help
1324 MIPS Technologies R10000-series processors.
1325
1326config CPU_RM7000
1327 bool "RM7000"
1328 depends on SYS_HAS_CPU_RM7000
1329 select CPU_HAS_PREFETCH
1330 select CPU_SUPPORTS_32BIT_KERNEL
1331 select CPU_SUPPORTS_64BIT_KERNEL
1332 select CPU_SUPPORTS_HIGHMEM
1333
1334config CPU_RM9000
1335 bool "RM9000"
1336 depends on SYS_HAS_CPU_RM9000
1337 select CPU_HAS_PREFETCH
1338 select CPU_SUPPORTS_32BIT_KERNEL
1339 select CPU_SUPPORTS_64BIT_KERNEL
1340 select CPU_SUPPORTS_HIGHMEM
1341 select WEAK_ORDERING
1342
1343config CPU_SB1
1344 bool "SB1"
1345 depends on SYS_HAS_CPU_SB1
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
1348 select CPU_SUPPORTS_HIGHMEM
1349 select WEAK_ORDERING
1350
1351config CPU_CAVIUM_OCTEON
1352 bool "Cavium Octeon processor"
1353 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1354 select IRQ_CPU
1355 select IRQ_CPU_OCTEON
1356 select CPU_HAS_PREFETCH
1357 select CPU_SUPPORTS_64BIT_KERNEL
1358 select SYS_SUPPORTS_SMP
1359 select NR_CPUS_DEFAULT_16
1360 select WEAK_ORDERING
1361 select CPU_SUPPORTS_HIGHMEM
1362 select CPU_SUPPORTS_HUGEPAGES
1363 help
1364 The Cavium Octeon processor is a highly integrated chip containing
1365 many ethernet hardware widgets for networking tasks. The processor
1366 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1367 Full details can be found at http://www.caviumnetworks.com.
1368
1369config CPU_BMIPS3300
1370 bool "BMIPS3300"
1371 depends on SYS_HAS_CPU_BMIPS3300
1372 select DMA_NONCOHERENT
1373 select IRQ_CPU
1374 select SWAP_IO_SPACE
1375 select SYS_SUPPORTS_32BIT_KERNEL
1376 select WEAK_ORDERING
1377 help
1378 Broadcom BMIPS3300 processors.
1379
1380config CPU_BMIPS4350
1381 bool "BMIPS4350"
1382 depends on SYS_HAS_CPU_BMIPS4350
1383 select CPU_SUPPORTS_32BIT_KERNEL
1384 select DMA_NONCOHERENT
1385 select IRQ_CPU
1386 select SWAP_IO_SPACE
1387 select SYS_SUPPORTS_SMP
1388 select SYS_SUPPORTS_HOTPLUG_CPU
1389 select WEAK_ORDERING
1390 help
1391 Broadcom BMIPS4350 ("VIPER") processors.
1392
1393config CPU_BMIPS4380
1394 bool "BMIPS4380"
1395 depends on SYS_HAS_CPU_BMIPS4380
1396 select CPU_SUPPORTS_32BIT_KERNEL
1397 select DMA_NONCOHERENT
1398 select IRQ_CPU
1399 select SWAP_IO_SPACE
1400 select SYS_SUPPORTS_SMP
1401 select SYS_SUPPORTS_HOTPLUG_CPU
1402 select WEAK_ORDERING
1403 help
1404 Broadcom BMIPS4380 processors.
1405
1406config CPU_BMIPS5000
1407 bool "BMIPS5000"
1408 depends on SYS_HAS_CPU_BMIPS5000
1409 select CPU_SUPPORTS_32BIT_KERNEL
1410 select CPU_SUPPORTS_HIGHMEM
1411 select DMA_NONCOHERENT
1412 select IRQ_CPU
1413 select SWAP_IO_SPACE
1414 select SYS_SUPPORTS_SMP
1415 select SYS_SUPPORTS_HOTPLUG_CPU
1416 select WEAK_ORDERING
1417 help
1418 Broadcom BMIPS5000 processors.
1419
1420endchoice
1421
1422if CPU_LOONGSON2F
1423config CPU_NOP_WORKAROUNDS
1424 bool
1425
1426config CPU_JUMP_WORKAROUNDS
1427 bool
1428
1429config CPU_LOONGSON2F_WORKAROUNDS
1430 bool "Loongson 2F Workarounds"
1431 default y
1432 select CPU_NOP_WORKAROUNDS
1433 select CPU_JUMP_WORKAROUNDS
1434 help
1435 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1436 require workarounds. Without workarounds the system may hang
1437 unexpectedly. For more information please refer to the gas
1438 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1439
1440 Loongson 2F03 and later have fixed these issues and no workarounds
1441 are needed. The workarounds have no significant side effect on them
1442 but may decrease the performance of the system so this option should
1443 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1444 systems.
1445
1446 If unsure, please say Y.
1447endif
1448
1449config SYS_SUPPORTS_ZBOOT
1450 bool
1451 select HAVE_KERNEL_GZIP
1452 select HAVE_KERNEL_BZIP2
1453 select HAVE_KERNEL_LZMA
1454 select HAVE_KERNEL_LZO
1455
1456config SYS_SUPPORTS_ZBOOT_UART16550
1457 bool
1458 select SYS_SUPPORTS_ZBOOT
1459
1460config CPU_LOONGSON2
1461 bool
1462 select CPU_SUPPORTS_32BIT_KERNEL
1463 select CPU_SUPPORTS_64BIT_KERNEL
1464 select CPU_SUPPORTS_HIGHMEM
1465
1466config SYS_HAS_CPU_LOONGSON2E
1467 bool
1468
1469config SYS_HAS_CPU_LOONGSON2F
1470 bool
1471 select CPU_SUPPORTS_CPUFREQ
1472 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1473 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1474
1475config SYS_HAS_CPU_MIPS32_R1
1476 bool
1477
1478config SYS_HAS_CPU_MIPS32_R2
1479 bool
1480
1481config SYS_HAS_CPU_MIPS64_R1
1482 bool
1483
1484config SYS_HAS_CPU_MIPS64_R2
1485 bool
1486
1487config SYS_HAS_CPU_R3000
1488 bool
1489
1490config SYS_HAS_CPU_TX39XX
1491 bool
1492
1493config SYS_HAS_CPU_VR41XX
1494 bool
1495
1496config SYS_HAS_CPU_R4300
1497 bool
1498
1499config SYS_HAS_CPU_R4X00
1500 bool
1501
1502config SYS_HAS_CPU_TX49XX
1503 bool
1504
1505config SYS_HAS_CPU_R5000
1506 bool
1507
1508config SYS_HAS_CPU_R5432
1509 bool
1510
1511config SYS_HAS_CPU_R5500
1512 bool
1513
1514config SYS_HAS_CPU_R6000
1515 bool
1516
1517config SYS_HAS_CPU_NEVADA
1518 bool
1519
1520config SYS_HAS_CPU_R8000
1521 bool
1522
1523config SYS_HAS_CPU_R10000
1524 bool
1525
1526config SYS_HAS_CPU_RM7000
1527 bool
1528
1529config SYS_HAS_CPU_RM9000
1530 bool
1531
1532config SYS_HAS_CPU_SB1
1533 bool
1534
1535config SYS_HAS_CPU_CAVIUM_OCTEON
1536 bool
1537
1538config SYS_HAS_CPU_BMIPS3300
1539 bool
1540
1541config SYS_HAS_CPU_BMIPS4350
1542 bool
1543
1544config SYS_HAS_CPU_BMIPS4380
1545 bool
1546
1547config SYS_HAS_CPU_BMIPS5000
1548 bool
1549
1550
1551
1552
1553
1554config WEAK_ORDERING
1555 bool
1556
1557
1558
1559
1560
1561config WEAK_REORDERING_BEYOND_LLSC
1562 bool
1563endmenu
1564
1565
1566
1567
1568config CPU_MIPS32
1569 bool
1570 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1571
1572config CPU_MIPS64
1573 bool
1574 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1575
1576
1577
1578
1579config CPU_MIPSR1
1580 bool
1581 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1582
1583config CPU_MIPSR2
1584 bool
1585 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1586
1587config SYS_SUPPORTS_32BIT_KERNEL
1588 bool
1589config SYS_SUPPORTS_64BIT_KERNEL
1590 bool
1591config CPU_SUPPORTS_32BIT_KERNEL
1592 bool
1593config CPU_SUPPORTS_64BIT_KERNEL
1594 bool
1595config CPU_SUPPORTS_CPUFREQ
1596 bool
1597config CPU_SUPPORTS_ADDRWINCFG
1598 bool
1599config CPU_SUPPORTS_HUGEPAGES
1600 bool
1601config CPU_SUPPORTS_UNCACHED_ACCELERATED
1602 bool
1603config MIPS_PGD_C0_CONTEXT
1604 bool
1605 default y if 64BIT && CPU_MIPSR2
1606
1607
1608
1609
1610config HARDWARE_WATCHPOINTS
1611 bool
1612 default y if CPU_MIPSR1 || CPU_MIPSR2
1613
1614menu "Kernel type"
1615
1616choice
1617
1618 prompt "Kernel code model"
1619 help
1620 You should only select this option if you have a workload that
1621 actually benefits from 64-bit processing or if your machine has
1622 large memory. You will only be presented a single option in this
1623 menu if your system does not support both 32-bit and 64-bit kernels.
1624
1625config 32BIT
1626 bool "32-bit kernel"
1627 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1628 select TRAD_SIGNALS
1629 help
1630 Select this option if you want to build a 32-bit kernel.
1631config 64BIT
1632 bool "64-bit kernel"
1633 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1634 select HAVE_SYSCALL_WRAPPERS
1635 help
1636 Select this option if you want to build a 64-bit kernel.
1637
1638endchoice
1639
1640choice
1641 prompt "Kernel page size"
1642 default PAGE_SIZE_4KB
1643
1644config PAGE_SIZE_4KB
1645 bool "4kB"
1646 depends on !CPU_LOONGSON2
1647 help
1648 This option select the standard 4kB Linux page size. On some
1649 R3000-family processors this is the only available page size. Using
1650 4kB page size will minimize memory consumption and is therefore
1651 recommended for low memory systems.
1652
1653config PAGE_SIZE_8KB
1654 bool "8kB"
1655 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1656 help
1657 Using 8kB page size will result in higher performance kernel at
1658 the price of higher memory consumption. This option is available
1659 only on R8000 and cnMIPS processors. Note that you will need a
1660 suitable Linux distribution to support this.
1661
1662config PAGE_SIZE_16KB
1663 bool "16kB"
1664 depends on !CPU_R3000 && !CPU_TX39XX
1665 help
1666 Using 16kB page size will result in higher performance kernel at
1667 the price of higher memory consumption. This option is available on
1668 all non-R3000 family processors. Note that you will need a suitable
1669 Linux distribution to support this.
1670
1671config PAGE_SIZE_32KB
1672 bool "32kB"
1673 depends on CPU_CAVIUM_OCTEON
1674 help
1675 Using 32kB page size will result in higher performance kernel at
1676 the price of higher memory consumption. This option is available
1677 only on cnMIPS cores. Note that you will need a suitable Linux
1678 distribution to support this.
1679
1680config PAGE_SIZE_64KB
1681 bool "64kB"
1682 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1683 help
1684 Using 64kB page size will result in higher performance kernel at
1685 the price of higher memory consumption. This option is available on
1686 all non-R3000 family processor. Not that at the time of this
1687 writing this option is still high experimental.
1688
1689endchoice
1690
1691config FORCE_MAX_ZONEORDER
1692 int "Maximum zone order"
1693 range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1694 default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1695 range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1696 default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1697 range 11 64
1698 default "11"
1699 help
1700 The kernel memory allocator divides physically contiguous memory
1701 blocks into "zones", where each zone is a power of two number of
1702 pages. This option selects the largest power of two that the kernel
1703 keeps in the memory allocator. If you need to allocate very large
1704 blocks of physically contiguous memory, then you may need to
1705 increase this value.
1706
1707 This config option is actually maximum order plus one. For example,
1708 a value of 11 means that the largest free memory block is 2^10 pages.
1709
1710 The page size is not necessarily 4KB. Keep this in mind
1711 when choosing a value for this option.
1712
1713config BOARD_SCACHE
1714 bool
1715
1716config IP22_CPU_SCACHE
1717 bool
1718 select BOARD_SCACHE
1719
1720
1721
1722
1723config MIPS_CPU_SCACHE
1724 bool
1725 select BOARD_SCACHE
1726
1727config R5000_CPU_SCACHE
1728 bool
1729 select BOARD_SCACHE
1730
1731config RM7000_CPU_SCACHE
1732 bool
1733 select BOARD_SCACHE
1734
1735config SIBYTE_DMA_PAGEOPS
1736 bool "Use DMA to clear/copy pages"
1737 depends on CPU_SB1
1738 help
1739 Instead of using the CPU to zero and copy pages, use a Data Mover
1740 channel. These DMA channels are otherwise unused by the standard
1741 SiByte Linux port. Seems to give a small performance benefit.
1742
1743config CPU_HAS_PREFETCH
1744 bool
1745
1746choice
1747 prompt "MIPS MT options"
1748
1749config MIPS_MT_DISABLED
1750 bool "Disable multithreading support."
1751 help
1752 Use this option if your workload can't take advantage of
1753 MIPS hardware multithreading support. On systems that don't have
1754 the option of an MT-enabled processor this option will be the only
1755 option in this menu.
1756
1757config MIPS_MT_SMP
1758 bool "Use 1 TC on each available VPE for SMP"
1759 depends on SYS_SUPPORTS_MULTITHREADING
1760 select CPU_MIPSR2_IRQ_VI
1761 select CPU_MIPSR2_IRQ_EI
1762 select MIPS_MT
1763 select NR_CPUS_DEFAULT_2
1764 select SMP
1765 select SYS_SUPPORTS_SCHED_SMT if SMP
1766 select SYS_SUPPORTS_SMP
1767 select SMP_UP
1768 help
1769 This is a kernel model which is known a VSMP but lately has been
1770 marketesed into SMVP.
1771 Virtual SMP uses the processor's VPEs to implement virtual
1772 processors. In currently available configuration of the 34K processor
1773 this allows for a dual processor. Both processors will share the same
1774 primary caches; each will obtain the half of the TLB for it's own
1775 exclusive use. For a layman this model can be described as similar to
1776 what Intel calls Hyperthreading.
1777
1778 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1779
1780config MIPS_MT_SMTC
1781 bool "SMTC: Use all TCs on all VPEs for SMP"
1782 depends on CPU_MIPS32_R2
1783
1784 depends on SYS_SUPPORTS_MULTITHREADING
1785 select CPU_MIPSR2_IRQ_VI
1786 select CPU_MIPSR2_IRQ_EI
1787 select MIPS_MT
1788 select NR_CPUS_DEFAULT_8
1789 select SMP
1790 select SYS_SUPPORTS_SMP
1791 select SMP_UP
1792 help
1793 This is a kernel model which is known a SMTC or lately has been
1794 marketesed into SMVP.
1795 is presenting the available TC's of the core as processors to Linux.
1796 On currently available 34K processors this means a Linux system will
1797 see up to 5 processors. The implementation of the SMTC kernel differs
1798 significantly from VSMP and cannot efficiently coexist in the same
1799 kernel binary so the choice between VSMP and SMTC is a compile time
1800 decision.
1801
1802 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1803
1804endchoice
1805
1806config MIPS_MT
1807 bool
1808
1809config SCHED_SMT
1810 bool "SMT (multithreading) scheduler support"
1811 depends on SYS_SUPPORTS_SCHED_SMT
1812 default n
1813 help
1814 SMT scheduler support improves the CPU scheduler's decision making
1815 when dealing with MIPS MT enabled cores at a cost of slightly
1816 increased overhead in some places. If unsure say N here.
1817
1818config SYS_SUPPORTS_SCHED_SMT
1819 bool
1820
1821
1822config SYS_SUPPORTS_MULTITHREADING
1823 bool
1824
1825config MIPS_MT_FPAFF
1826 bool "Dynamic FPU affinity for FP-intensive threads"
1827 default y
1828 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1829
1830config MIPS_VPE_LOADER
1831 bool "VPE loader support."
1832 depends on SYS_SUPPORTS_MULTITHREADING
1833 select CPU_MIPSR2_IRQ_VI
1834 select CPU_MIPSR2_IRQ_EI
1835 select MIPS_MT
1836 help
1837 Includes a loader for loading an elf relocatable object
1838 onto another VPE and running it.
1839
1840config MIPS_MT_SMTC_IM_BACKSTOP
1841 bool "Use per-TC register bits as backstop for inhibited IM bits"
1842 depends on MIPS_MT_SMTC
1843 default n
1844 help
1845 To support multiple TC microthreads acting as "CPUs" within
1846 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1847 during interrupt handling. To support legacy drivers and interrupt
1848 controller management code, SMTC has a "backstop" to track and
1849 if necessary restore the interrupt mask. This has some performance
1850 impact on interrupt service overhead.
1851
1852config MIPS_MT_SMTC_IRQAFF
1853 bool "Support IRQ affinity API"
1854 depends on MIPS_MT_SMTC
1855 default n
1856 help
1857 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1858 for SMTC Linux kernel. Requires platform support, of which
1859 an example can be found in the MIPS kernel i8259 and Malta
1860 platform code. Adds some overhead to interrupt dispatch, and
1861 should be used only if you know what you are doing.
1862
1863config MIPS_VPE_LOADER_TOM
1864 bool "Load VPE program into memory hidden from linux"
1865 depends on MIPS_VPE_LOADER
1866 default y
1867 help
1868 The loader can use memory that is present but has been hidden from
1869 Linux using the kernel command line option "mem=xxMB". It's up to
1870 you to ensure the amount you put in the option and the space your
1871 program requires is less or equal to the amount physically present.
1872
1873
1874config MIPS_VPE_APSP_API
1875 bool "Enable support for AP/SP API (RTLX)"
1876 depends on MIPS_VPE_LOADER
1877 help
1878
1879config MIPS_APSP_KSPD
1880 bool "Enable KSPD"
1881 depends on MIPS_VPE_APSP_API
1882 default y
1883 help
1884 KSPD is a kernel daemon that accepts syscall requests from the SP
1885 side, actions them and returns the results. It also handles the
1886 "exit" syscall notifying other kernel modules the SP program is
1887 exiting. You probably want to say yes here.
1888
1889config MIPS_CMP
1890 bool "MIPS CMP framework support"
1891 depends on SYS_SUPPORTS_MIPS_CMP
1892 select SYNC_R4K
1893 select SYS_SUPPORTS_SMP
1894 select SYS_SUPPORTS_SCHED_SMT if SMP
1895 select WEAK_ORDERING
1896 default n
1897 help
1898 This is a placeholder option for the GCMP work. It will need to
1899 be handled differently...
1900
1901config SB1_PASS_1_WORKAROUNDS
1902 bool
1903 depends on CPU_SB1_PASS_1
1904 default y
1905
1906config SB1_PASS_2_WORKAROUNDS
1907 bool
1908 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1909 default y
1910
1911config SB1_PASS_2_1_WORKAROUNDS
1912 bool
1913 depends on CPU_SB1 && CPU_SB1_PASS_2
1914 default y
1915
1916config 64BIT_PHYS_ADDR
1917 bool
1918
1919config ARCH_PHYS_ADDR_T_64BIT
1920 def_bool 64BIT_PHYS_ADDR
1921
1922config CPU_HAS_SMARTMIPS
1923 depends on SYS_SUPPORTS_SMARTMIPS
1924 bool "Support for the SmartMIPS ASE"
1925 help
1926 SmartMIPS is a extension of the MIPS32 architecture aimed at
1927 increased security at both hardware and software level for
1928 smartcards. Enabling this option will allow proper use of the
1929 SmartMIPS instructions by Linux applications. However a kernel with
1930 this option will not work on a MIPS core without SmartMIPS core. If
1931 you don't know you probably don't have SmartMIPS and should say N
1932 here.
1933
1934config CPU_HAS_WB
1935 bool
1936
1937
1938
1939
1940config CPU_MIPSR2_IRQ_VI
1941 bool
1942
1943
1944
1945
1946config CPU_MIPSR2_IRQ_EI
1947 bool
1948
1949config CPU_HAS_SYNC
1950 bool
1951 depends on !CPU_R3000
1952 default y
1953
1954config GENERIC_CLOCKEVENTS_BROADCAST
1955 bool
1956
1957
1958
1959
1960config CPU_DADDI_WORKAROUNDS
1961 bool
1962
1963config CPU_R4000_WORKAROUNDS
1964 bool
1965 select CPU_R4400_WORKAROUNDS
1966
1967config CPU_R4400_WORKAROUNDS
1968 bool
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983config HIGHMEM
1984 bool "High Memory Support"
1985 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1986
1987config CPU_SUPPORTS_HIGHMEM
1988 bool
1989
1990config SYS_SUPPORTS_HIGHMEM
1991 bool
1992
1993config SYS_SUPPORTS_SMARTMIPS
1994 bool
1995
1996config ARCH_FLATMEM_ENABLE
1997 def_bool y
1998 depends on !NUMA && !CPU_LOONGSON2
1999
2000config ARCH_DISCONTIGMEM_ENABLE
2001 bool
2002 default y if SGI_IP27
2003 help
2004 Say Y to support efficient handling of discontiguous physical memory,
2005 for architectures which are either NUMA (Non-Uniform Memory Access)
2006 or have huge holes in the physical address space for other reasons.
2007 See <file:Documentation/vm/numa> for more.
2008
2009config ARCH_POPULATES_NODE_MAP
2010 def_bool y
2011
2012config ARCH_SPARSEMEM_ENABLE
2013 bool
2014 select SPARSEMEM_STATIC
2015
2016config NUMA
2017 bool "NUMA Support"
2018 depends on SYS_SUPPORTS_NUMA
2019 help
2020 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2021 Access). This option improves performance on systems with more
2022 than two nodes; on two node systems it is generally better to
2023 leave it disabled; on single node systems disable this option
2024 disabled.
2025
2026config SYS_SUPPORTS_NUMA
2027 bool
2028
2029config NODES_SHIFT
2030 int
2031 default "6"
2032 depends on NEED_MULTIPLE_NODES
2033
2034config HW_PERF_EVENTS
2035 bool "Enable hardware performance counter support for perf events"
2036 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32
2037 default y
2038 help
2039 Enable hardware performance counter support for perf events. If
2040 disabled, perf events will use software events only.
2041
2042source "mm/Kconfig"
2043
2044config SMP
2045 bool "Multi-Processing support"
2046 depends on SYS_SUPPORTS_SMP
2047 select IRQ_PER_CPU
2048 select USE_GENERIC_SMP_HELPERS
2049 help
2050 This enables support for systems with more than one CPU. If you have
2051 a system with only one CPU, like most personal computers, say N. If
2052 you have a system with more than one CPU, say Y.
2053
2054 If you say N here, the kernel will run on single and multiprocessor
2055 machines, but will use only one CPU of a multiprocessor machine. If
2056 you say Y here, the kernel will run on many, but not all,
2057 singleprocessor machines. On a singleprocessor machine, the kernel
2058 will run faster if you say N here.
2059
2060 People using multiprocessor machines who say Y here should also say
2061 Y to "Enhanced Real Time Clock Support", below.
2062
2063 See also the SMP-HOWTO available at
2064 <http://www.tldp.org/docs.html#howto>.
2065
2066 If you don't know what to do here, say N.
2067
2068config SMP_UP
2069 bool
2070
2071config SYS_SUPPORTS_MIPS_CMP
2072 bool
2073
2074config SYS_SUPPORTS_SMP
2075 bool
2076
2077config NR_CPUS_DEFAULT_1
2078 bool
2079
2080config NR_CPUS_DEFAULT_2
2081 bool
2082
2083config NR_CPUS_DEFAULT_4
2084 bool
2085
2086config NR_CPUS_DEFAULT_8
2087 bool
2088
2089config NR_CPUS_DEFAULT_16
2090 bool
2091
2092config NR_CPUS_DEFAULT_32
2093 bool
2094
2095config NR_CPUS_DEFAULT_64
2096 bool
2097
2098config NR_CPUS
2099 int "Maximum number of CPUs (2-64)"
2100 range 1 64 if NR_CPUS_DEFAULT_1
2101 depends on SMP
2102 default "1" if NR_CPUS_DEFAULT_1
2103 default "2" if NR_CPUS_DEFAULT_2
2104 default "4" if NR_CPUS_DEFAULT_4
2105 default "8" if NR_CPUS_DEFAULT_8
2106 default "16" if NR_CPUS_DEFAULT_16
2107 default "32" if NR_CPUS_DEFAULT_32
2108 default "64" if NR_CPUS_DEFAULT_64
2109 help
2110 This allows you to specify the maximum number of CPUs which this
2111 kernel will support. The maximum supported value is 32 for 32-bit
2112 kernel and 64 for 64-bit kernels; the minimum value which makes
2113 sense is 1 for Qemu (useful only for kernel debugging purposes)
2114 and 2 for all others.
2115
2116 This is purely to save memory - each supported CPU adds
2117 approximately eight kilobytes to the kernel image. For best
2118 performance should round up your number of processors to the next
2119 power of two.
2120
2121source "kernel/time/Kconfig"
2122
2123
2124
2125
2126
2127choice
2128 prompt "Timer frequency"
2129 default HZ_250
2130 help
2131 Allows the configuration of the timer frequency.
2132
2133 config HZ_48
2134 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2135
2136 config HZ_100
2137 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2138
2139 config HZ_128
2140 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2141
2142 config HZ_250
2143 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2144
2145 config HZ_256
2146 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2147
2148 config HZ_1000
2149 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2150
2151 config HZ_1024
2152 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2153
2154endchoice
2155
2156config SYS_SUPPORTS_48HZ
2157 bool
2158
2159config SYS_SUPPORTS_100HZ
2160 bool
2161
2162config SYS_SUPPORTS_128HZ
2163 bool
2164
2165config SYS_SUPPORTS_250HZ
2166 bool
2167
2168config SYS_SUPPORTS_256HZ
2169 bool
2170
2171config SYS_SUPPORTS_1000HZ
2172 bool
2173
2174config SYS_SUPPORTS_1024HZ
2175 bool
2176
2177config SYS_SUPPORTS_ARBIT_HZ
2178 bool
2179 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2180 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2181 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2182 !SYS_SUPPORTS_1024HZ
2183
2184config HZ
2185 int
2186 default 48 if HZ_48
2187 default 100 if HZ_100
2188 default 128 if HZ_128
2189 default 250 if HZ_250
2190 default 256 if HZ_256
2191 default 1000 if HZ_1000
2192 default 1024 if HZ_1024
2193
2194source "kernel/Kconfig.preempt"
2195
2196config MIPS_INSANE_LARGE
2197 bool "Support for large 64-bit configurations"
2198 depends on CPU_R10000 && 64BIT
2199 help
2200 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2201 previous 64-bit processors which only supported 40 bit / 1TB. If you
2202 need processes of more than 1TB virtual address space, say Y here.
2203 This will result in additional memory usage, so it is not
2204 recommended for normal users.
2205
2206config KEXEC
2207 bool "Kexec system call (EXPERIMENTAL)"
2208 depends on EXPERIMENTAL
2209 help
2210 kexec is a system call that implements the ability to shutdown your
2211 current kernel, and to start another kernel. It is like a reboot
2212 but it is independent of the system firmware. And like a reboot
2213 you can start any kernel with it, not just Linux.
2214
2215 The name comes from the similarity to the exec system call.
2216
2217 It is an ongoing process to be certain the hardware in a machine
2218 is properly shutdown, so do not be surprised if this code does not
2219 initially work for you. It may help to enable device hotplugging
2220 support. As of this writing the exact hardware interface is
2221 strongly in flux, so no good recommendation can be made.
2222
2223config SECCOMP
2224 bool "Enable seccomp to safely compute untrusted bytecode"
2225 depends on PROC_FS
2226 default y
2227 help
2228 This kernel feature is useful for number crunching applications
2229 that may need to compute untrusted bytecode during their
2230 execution. By using pipes or other transports made available to
2231 the process as file descriptors supporting the read/write
2232 syscalls, it's possible to isolate those applications in
2233 their own address space using seccomp. Once seccomp is
2234 enabled via /proc/<pid>/seccomp, it cannot be disabled
2235 and the task is only allowed to execute a few safe syscalls
2236 defined by each seccomp mode.
2237
2238 If unsure, say Y. Only embedded should say N here.
2239
2240config USE_OF
2241 bool "Flattened Device Tree support"
2242 select OF
2243 select OF_EARLY_FLATTREE
2244 help
2245 Include support for flattened device tree machine descriptions.
2246
2247endmenu
2248
2249config LOCKDEP_SUPPORT
2250 bool
2251 default y
2252
2253config STACKTRACE_SUPPORT
2254 bool
2255 default y
2256
2257source "init/Kconfig"
2258
2259source "kernel/Kconfig.freezer"
2260
2261menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2262
2263config HW_HAS_EISA
2264 bool
2265config HW_HAS_PCI
2266 bool
2267
2268config PCI
2269 bool "Support for PCI controller"
2270 depends on HW_HAS_PCI
2271 select PCI_DOMAINS
2272 help
2273 Find out whether you have a PCI motherboard. PCI is the name of a
2274 bus system, i.e. the way the CPU talks to the other stuff inside
2275 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2276 say Y, otherwise N.
2277
2278config PCI_DOMAINS
2279 bool
2280
2281source "drivers/pci/Kconfig"
2282
2283
2284
2285
2286
2287
2288config ISA
2289 bool
2290
2291config EISA
2292 bool "EISA support"
2293 depends on HW_HAS_EISA
2294 select ISA
2295 select GENERIC_ISA_DMA
2296 ---help---
2297 The Extended Industry Standard Architecture (EISA) bus was
2298 developed as an open alternative to the IBM MicroChannel bus.
2299
2300 The EISA bus provided some of the features of the IBM MicroChannel
2301 bus while maintaining backward compatibility with cards made for
2302 the older ISA bus. The EISA bus saw limited use between 1988 and
2303 1995 when it was made obsolete by the PCI bus.
2304
2305 Say Y here if you are building a kernel for an EISA-based machine.
2306
2307 Otherwise, say N.
2308
2309source "drivers/eisa/Kconfig"
2310
2311config TC
2312 bool "TURBOchannel support"
2313 depends on MACH_DECSTATION
2314 help
2315 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2316 processors. TURBOchannel programming specifications are available
2317 at:
2318 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2319 and:
2320 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2321 Linux driver support status is documented at:
2322 <http://www.linux-mips.org/wiki/DECstation>
2323
2324
2325
2326
2327
2328config MMU
2329 bool
2330 default y
2331
2332config I8253
2333 bool
2334 select MIPS_EXTERNAL_TIMER
2335
2336config ZONE_DMA32
2337 bool
2338
2339source "drivers/pcmcia/Kconfig"
2340
2341source "drivers/pci/hotplug/Kconfig"
2342
2343endmenu
2344
2345menu "Executable file formats"
2346
2347source "fs/Kconfig.binfmt"
2348
2349config TRAD_SIGNALS
2350 bool
2351
2352config MIPS32_COMPAT
2353 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2354 depends on 64BIT
2355 help
2356 Select this option if you want Linux/MIPS 32-bit binary
2357 compatibility. Since all software available for Linux/MIPS is
2358 currently 32-bit you should say Y here.
2359
2360config COMPAT
2361 bool
2362 depends on MIPS32_COMPAT
2363 default y
2364
2365config SYSVIPC_COMPAT
2366 bool
2367 depends on COMPAT && SYSVIPC
2368 default y
2369
2370config MIPS32_O32
2371 bool "Kernel support for o32 binaries"
2372 depends on MIPS32_COMPAT
2373 help
2374 Select this option if you want to run o32 binaries. These are pure
2375 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2376 existing binaries are in this format.
2377
2378 If unsure, say Y.
2379
2380config MIPS32_N32
2381 bool "Kernel support for n32 binaries"
2382 depends on MIPS32_COMPAT
2383 help
2384 Select this option if you want to run n32 binaries. These are
2385 64-bit binaries using 32-bit quantities for addressing and certain
2386 data that would normally be 64-bit. They are used in special
2387 cases.
2388
2389 If unsure, say N.
2390
2391config BINFMT_ELF32
2392 bool
2393 default y if MIPS32_O32 || MIPS32_N32
2394
2395endmenu
2396
2397menu "Power management options"
2398
2399config ARCH_HIBERNATION_POSSIBLE
2400 def_bool y
2401 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2402
2403config ARCH_SUSPEND_POSSIBLE
2404 def_bool y
2405 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2406
2407source "kernel/power/Kconfig"
2408
2409endmenu
2410
2411source "arch/mips/kernel/cpufreq/Kconfig"
2412
2413source "net/Kconfig"
2414
2415source "drivers/Kconfig"
2416
2417source "fs/Kconfig"
2418
2419source "arch/mips/Kconfig.debug"
2420
2421source "security/Kconfig"
2422
2423source "crypto/Kconfig"
2424
2425menuconfig VIRTUALIZATION
2426 bool "Virtualization"
2427 default n
2428 ---help---
2429 Say Y here to get to see options for using your Linux host to run other
2430 operating systems inside virtual machines (guests).
2431 This option alone does not add any kernel code.
2432
2433 If you say N, all options in this submenu will be skipped and disabled.
2434
2435if VIRTUALIZATION
2436
2437source drivers/virtio/Kconfig
2438
2439endif
2440
2441source "lib/Kconfig"
2442