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1 config MIPS
2 bool
3 default y
4 # Horrible source of confusion. Die, die, die ...
5 select EMBEDDED
6 select RTC_LIB
7
8 mainmenu "Linux/MIPS Kernel Configuration"
9
10 menu "Machine selection"
11
12 config ZONE_DMA
13 bool
14
15 choice
16 prompt "System type"
17 default SGI_IP22
18
19 config MACH_ALCHEMY
20 bool "Alchemy processor based machines"
21
22 config BASLER_EXCITE
23 bool "Basler eXcite smart camera"
24 select CEVT_R4K
25 select DMA_COHERENT
26 select HW_HAS_PCI
27 select IRQ_CPU
28 select IRQ_CPU_RM7K
29 select IRQ_CPU_RM9K
30 select MIPS_RM9122
31 select SYS_HAS_CPU_RM9000
32 select SYS_SUPPORTS_32BIT_KERNEL
33 select SYS_SUPPORTS_BIG_ENDIAN
34 select SYS_SUPPORTS_KGDB
35 help
36 The eXcite is a smart camera platform manufactured by
37 Basler Vision Technologies AG.
38
39 config BASLER_EXCITE_PROTOTYPE
40 bool "Support for pre-release units"
41 depends on BASLER_EXCITE
42 default n
43 help
44 Pre-series (prototype) units are different from later ones in
45 some ways. Select this option if you have one of these. Please
46 note that a kernel built with this option selected will not be
47 able to run on normal units.
48
49 config BCM47XX
50 bool "BCM47XX based boards"
51 select CEVT_R4K
52 select DMA_NONCOHERENT
53 select HW_HAS_PCI
54 select IRQ_CPU
55 select SYS_HAS_CPU_MIPS32_R1
56 select SYS_SUPPORTS_32BIT_KERNEL
57 select SYS_SUPPORTS_LITTLE_ENDIAN
58 select SSB
59 select SSB_DRIVER_MIPS
60 select GENERIC_GPIO
61 select SYS_HAS_EARLY_PRINTK
62 select CFE
63 help
64 Support for BCM47XX based boards
65
66 config MIPS_COBALT
67 bool "Cobalt Server"
68 select CEVT_R4K
69 select CEVT_GT641XX
70 select DMA_NONCOHERENT
71 select HW_HAS_PCI
72 select I8253
73 select I8259
74 select IRQ_CPU
75 select IRQ_GT641XX
76 select PCI_GT64XXX_PCI0
77 select SYS_HAS_CPU_NEVADA
78 select SYS_HAS_EARLY_PRINTK
79 select SYS_SUPPORTS_32BIT_KERNEL
80 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
81 select SYS_SUPPORTS_LITTLE_ENDIAN
82 select GENERIC_HARDIRQS_NO__DO_IRQ
83
84 config MACH_DECSTATION
85 bool "DECstations"
86 select BOOT_ELF32
87 select CEVT_R4K
88 select DMA_NONCOHERENT
89 select NO_IOPORT
90 select IRQ_CPU
91 select SYS_HAS_CPU_R3000
92 select SYS_HAS_CPU_R4X00
93 select SYS_SUPPORTS_32BIT_KERNEL
94 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
95 select SYS_SUPPORTS_LITTLE_ENDIAN
96 select SYS_SUPPORTS_128HZ
97 select SYS_SUPPORTS_256HZ
98 select SYS_SUPPORTS_1024HZ
99 help
100 This enables support for DEC's MIPS based workstations. For details
101 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
102 DECstation porting pages on <http://decstation.unix-ag.org/>.
103
104 If you have one of the following DECstation Models you definitely
105 want to choose R4xx0 for the CPU Type:
106
107 DECstation 5000/50
108 DECstation 5000/150
109 DECstation 5000/260
110 DECsystem 5900/260
111
112 otherwise choose R3000.
113
114 config MACH_JAZZ
115 bool "Jazz family of machines"
116 select ARC
117 select ARC32
118 select ARCH_MAY_HAVE_PC_FDC
119 select CEVT_R4K
120 select GENERIC_ISA_DMA
121 select IRQ_CPU
122 select I8253
123 select I8259
124 select ISA
125 select PCSPEAKER
126 select SYS_HAS_CPU_R4X00
127 select SYS_SUPPORTS_32BIT_KERNEL
128 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
129 select SYS_SUPPORTS_100HZ
130 select GENERIC_HARDIRQS_NO__DO_IRQ
131 help
132 This a family of machines based on the MIPS R4030 chipset which was
133 used by several vendors to build RISC/os and Windows NT workstations.
134 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
135 Olivetti M700-10 workstations.
136
137 config LASAT
138 bool "LASAT Networks platforms"
139 select CEVT_R4K
140 select DMA_NONCOHERENT
141 select SYS_HAS_EARLY_PRINTK
142 select HW_HAS_PCI
143 select IRQ_CPU
144 select PCI_GT64XXX_PCI0
145 select MIPS_NILE4
146 select R5000_CPU_SCACHE
147 select SYS_HAS_CPU_R5000
148 select SYS_SUPPORTS_32BIT_KERNEL
149 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
150 select SYS_SUPPORTS_LITTLE_ENDIAN
151 select GENERIC_HARDIRQS_NO__DO_IRQ
152
153 config LEMOTE_FULONG
154 bool "Lemote Fulong mini-PC"
155 select ARCH_SPARSEMEM_ENABLE
156 select CEVT_R4K
157 select SYS_HAS_CPU_LOONGSON2
158 select DMA_NONCOHERENT
159 select BOOT_ELF32
160 select BOARD_SCACHE
161 select HAVE_STD_PC_SERIAL_PORT
162 select HW_HAS_PCI
163 select I8259
164 select ISA
165 select IRQ_CPU
166 select SYS_SUPPORTS_32BIT_KERNEL
167 select SYS_SUPPORTS_64BIT_KERNEL
168 select SYS_SUPPORTS_LITTLE_ENDIAN
169 select SYS_SUPPORTS_HIGHMEM
170 select SYS_HAS_EARLY_PRINTK
171 select GENERIC_HARDIRQS_NO__DO_IRQ
172 select GENERIC_ISA_DMA_SUPPORT_BROKEN
173 select CPU_HAS_WB
174 help
175 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
176 an FPGA northbridge
177
178 config MIPS_ATLAS
179 bool "MIPS Atlas board"
180 select BOOT_ELF32
181 select CEVT_R4K
182 select DMA_NONCOHERENT
183 select SYS_HAS_EARLY_PRINTK
184 select IRQ_CPU
185 select HW_HAS_PCI
186 select MIPS_BOARDS_GEN
187 select MIPS_BONITO64
188 select PCI_GT64XXX_PCI0
189 select MIPS_MSC
190 select RM7000_CPU_SCACHE
191 select SWAP_IO_SPACE
192 select SYS_HAS_CPU_MIPS32_R1
193 select SYS_HAS_CPU_MIPS32_R2
194 select SYS_HAS_CPU_MIPS64_R1
195 select SYS_HAS_CPU_NEVADA
196 select SYS_HAS_CPU_RM7000
197 select SYS_SUPPORTS_32BIT_KERNEL
198 select SYS_SUPPORTS_64BIT_KERNEL
199 select SYS_SUPPORTS_BIG_ENDIAN
200 select SYS_SUPPORTS_LITTLE_ENDIAN
201 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
202 select SYS_SUPPORTS_SMARTMIPS
203 select GENERIC_HARDIRQS_NO__DO_IRQ
204 help
205 This enables support for the MIPS Technologies Atlas evaluation
206 board.
207
208 config MIPS_MALTA
209 bool "MIPS Malta board"
210 select ARCH_MAY_HAVE_PC_FDC
211 select BOOT_ELF32
212 select CEVT_R4K
213 select DMA_NONCOHERENT
214 select GENERIC_ISA_DMA
215 select IRQ_CPU
216 select HW_HAS_PCI
217 select I8253
218 select I8259
219 select MIPS_BOARDS_GEN
220 select MIPS_BONITO64
221 select MIPS_CPU_SCACHE
222 select PCI_GT64XXX_PCI0
223 select MIPS_MSC
224 select SWAP_IO_SPACE
225 select SYS_HAS_CPU_MIPS32_R1
226 select SYS_HAS_CPU_MIPS32_R2
227 select SYS_HAS_CPU_MIPS64_R1
228 select SYS_HAS_CPU_NEVADA
229 select SYS_HAS_CPU_RM7000
230 select SYS_HAS_EARLY_PRINTK
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_64BIT_KERNEL
233 select SYS_SUPPORTS_BIG_ENDIAN
234 select SYS_SUPPORTS_LITTLE_ENDIAN
235 select SYS_SUPPORTS_MULTITHREADING
236 select SYS_SUPPORTS_SMARTMIPS
237 help
238 This enables support for the MIPS Technologies Malta evaluation
239 board.
240
241 config MIPS_SEAD
242 bool "MIPS SEAD board"
243 select CEVT_R4K
244 select IRQ_CPU
245 select DMA_NONCOHERENT
246 select SYS_HAS_EARLY_PRINTK
247 select MIPS_BOARDS_GEN
248 select SYS_HAS_CPU_MIPS32_R1
249 select SYS_HAS_CPU_MIPS32_R2
250 select SYS_HAS_CPU_MIPS64_R1
251 select SYS_SUPPORTS_32BIT_KERNEL
252 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
253 select SYS_SUPPORTS_BIG_ENDIAN
254 select SYS_SUPPORTS_LITTLE_ENDIAN
255 select SYS_SUPPORTS_SMARTMIPS
256 help
257 This enables support for the MIPS Technologies SEAD evaluation
258 board.
259
260 config MIPS_SIM
261 bool 'MIPS simulator (MIPSsim)'
262 select CEVT_R4K
263 select DMA_NONCOHERENT
264 select SYS_HAS_EARLY_PRINTK
265 select IRQ_CPU
266 select BOOT_RAW
267 select SYS_HAS_CPU_MIPS32_R1
268 select SYS_HAS_CPU_MIPS32_R2
269 select SYS_HAS_EARLY_PRINTK
270 select SYS_SUPPORTS_32BIT_KERNEL
271 select SYS_SUPPORTS_BIG_ENDIAN
272 select SYS_SUPPORTS_MULTITHREADING
273 select SYS_SUPPORTS_LITTLE_ENDIAN
274 help
275 This option enables support for MIPS Technologies MIPSsim software
276 emulator.
277
278 config MARKEINS
279 bool "NEC EMMA2RH Mark-eins"
280 select CEVT_R4K
281 select DMA_NONCOHERENT
282 select HW_HAS_PCI
283 select IRQ_CPU
284 select SWAP_IO_SPACE
285 select SYS_SUPPORTS_32BIT_KERNEL
286 select SYS_SUPPORTS_BIG_ENDIAN
287 select SYS_SUPPORTS_LITTLE_ENDIAN
288 select SYS_HAS_CPU_R5000
289 help
290 This enables support for the R5432-based NEC Mark-eins
291 boards with R5500 CPU.
292
293 config MACH_VR41XX
294 bool "NEC VR4100 series based machines"
295 select CEVT_R4K
296 select SYS_HAS_CPU_VR41XX
297 select GENERIC_HARDIRQS_NO__DO_IRQ
298
299 config PNX8550_JBS
300 bool "Philips PNX8550 based JBS board"
301 select PNX8550
302 select SYS_SUPPORTS_LITTLE_ENDIAN
303
304 config PNX8550_STB810
305 bool "Philips PNX8550 based STB810 board"
306 select PNX8550
307 select SYS_SUPPORTS_LITTLE_ENDIAN
308
309 config PMC_MSP
310 bool "PMC-Sierra MSP chipsets"
311 depends on EXPERIMENTAL
312 select DMA_NONCOHERENT
313 select SWAP_IO_SPACE
314 select NO_EXCEPT_FILL
315 select BOOT_RAW
316 select SYS_HAS_CPU_MIPS32_R1
317 select SYS_HAS_CPU_MIPS32_R2
318 select SYS_SUPPORTS_32BIT_KERNEL
319 select SYS_SUPPORTS_BIG_ENDIAN
320 select SYS_SUPPORTS_KGDB
321 select IRQ_CPU
322 select SERIAL_8250
323 select SERIAL_8250_CONSOLE
324 help
325 This adds support for the PMC-Sierra family of Multi-Service
326 Processor System-On-A-Chips. These parts include a number
327 of integrated peripherals, interfaces and DSPs in addition to
328 a variety of MIPS cores.
329
330 config PMC_YOSEMITE
331 bool "PMC-Sierra Yosemite eval board"
332 select CEVT_R4K
333 select DMA_COHERENT
334 select HW_HAS_PCI
335 select IRQ_CPU
336 select IRQ_CPU_RM7K
337 select IRQ_CPU_RM9K
338 select SWAP_IO_SPACE
339 select SYS_HAS_CPU_RM9000
340 select SYS_HAS_EARLY_PRINTK
341 select SYS_SUPPORTS_32BIT_KERNEL
342 select SYS_SUPPORTS_64BIT_KERNEL
343 select SYS_SUPPORTS_BIG_ENDIAN
344 select SYS_SUPPORTS_HIGHMEM
345 select SYS_SUPPORTS_KGDB
346 select SYS_SUPPORTS_SMP
347 help
348 Yosemite is an evaluation board for the RM9000x2 processor
349 manufactured by PMC-Sierra.
350
351 config QEMU
352 bool "Qemu"
353 select CEVT_R4K
354 select DMA_COHERENT
355 select GENERIC_ISA_DMA
356 select HAVE_STD_PC_SERIAL_PORT
357 select I8253
358 select I8259
359 select IRQ_CPU
360 select ISA
361 select PCSPEAKER
362 select SWAP_IO_SPACE
363 select SYS_HAS_CPU_MIPS32_R1
364 select SYS_SUPPORTS_32BIT_KERNEL
365 select SYS_SUPPORTS_BIG_ENDIAN
366 select SYS_SUPPORTS_LITTLE_ENDIAN
367 select ARCH_SPARSEMEM_ENABLE
368 select GENERIC_HARDIRQS_NO__DO_IRQ
369 select NR_CPUS_DEFAULT_1
370 select SYS_SUPPORTS_SMP
371 help
372 Qemu is a software emulator which among other architectures also
373 can simulate a MIPS32 4Kc system. This patch adds support for the
374 system architecture that currently is being simulated by Qemu. It
375 will eventually be removed again when Qemu has the capability to
376 simulate actual MIPS hardware platforms. More information on Qemu
377 can be found at http://www.linux-mips.org/wiki/Qemu.
378
379 config SGI_IP22
380 bool "SGI IP22 (Indy/Indigo2)"
381 select ARC
382 select ARC32
383 select BOOT_ELF32
384 select CEVT_R4K
385 select DMA_NONCOHERENT
386 select HW_HAS_EISA
387 select I8253
388 select IP22_CPU_SCACHE
389 select IRQ_CPU
390 select GENERIC_ISA_DMA_SUPPORT_BROKEN
391 select SWAP_IO_SPACE
392 select SYS_HAS_CPU_R4X00
393 select SYS_HAS_CPU_R5000
394 select SYS_HAS_EARLY_PRINTK
395 select SYS_SUPPORTS_32BIT_KERNEL
396 select SYS_SUPPORTS_64BIT_KERNEL
397 select SYS_SUPPORTS_BIG_ENDIAN
398 help
399 This are the SGI Indy, Challenge S and Indigo2, as well as certain
400 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
401 that runs on these, say Y here.
402
403 config SGI_IP27
404 bool "SGI IP27 (Origin200/2000)"
405 select ARC
406 select ARC64
407 select BOOT_ELF64
408 select DMA_IP27
409 select SYS_HAS_EARLY_PRINTK
410 select HW_HAS_PCI
411 select NR_CPUS_DEFAULT_64
412 select SYS_HAS_CPU_R10000
413 select SYS_SUPPORTS_64BIT_KERNEL
414 select SYS_SUPPORTS_BIG_ENDIAN
415 select SYS_SUPPORTS_KGDB
416 select SYS_SUPPORTS_NUMA
417 select SYS_SUPPORTS_SMP
418 select GENERIC_HARDIRQS_NO__DO_IRQ
419 help
420 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
421 workstations. To compile a Linux kernel that runs on these, say Y
422 here.
423
424 config SGI_IP32
425 bool "SGI IP32 (O2)"
426 select ARC
427 select ARC32
428 select BOOT_ELF32
429 select CEVT_R4K
430 select DMA_NONCOHERENT
431 select HW_HAS_PCI
432 select IRQ_CPU
433 select R5000_CPU_SCACHE
434 select RM7000_CPU_SCACHE
435 select SYS_HAS_CPU_R5000
436 select SYS_HAS_CPU_R10000 if BROKEN
437 select SYS_HAS_CPU_RM7000
438 select SYS_HAS_CPU_NEVADA
439 select SYS_SUPPORTS_64BIT_KERNEL
440 select SYS_SUPPORTS_BIG_ENDIAN
441 help
442 If you want this kernel to run on SGI O2 workstation, say Y here.
443
444 config SIBYTE_CRHINE
445 bool "Sibyte BCM91120C-CRhine"
446 depends on EXPERIMENTAL
447 select BOOT_ELF32
448 select DMA_COHERENT
449 select SIBYTE_BCM1120
450 select SWAP_IO_SPACE
451 select SYS_HAS_CPU_SB1
452 select SYS_SUPPORTS_BIG_ENDIAN
453 select SYS_SUPPORTS_LITTLE_ENDIAN
454
455 config SIBYTE_CARMEL
456 bool "Sibyte BCM91120x-Carmel"
457 depends on EXPERIMENTAL
458 select BOOT_ELF32
459 select DMA_COHERENT
460 select SIBYTE_BCM1120
461 select SWAP_IO_SPACE
462 select SYS_HAS_CPU_SB1
463 select SYS_SUPPORTS_BIG_ENDIAN
464 select SYS_SUPPORTS_LITTLE_ENDIAN
465
466 config SIBYTE_CRHONE
467 bool "Sibyte BCM91125C-CRhone"
468 depends on EXPERIMENTAL
469 select BOOT_ELF32
470 select DMA_COHERENT
471 select SIBYTE_BCM1125
472 select SWAP_IO_SPACE
473 select SYS_HAS_CPU_SB1
474 select SYS_SUPPORTS_BIG_ENDIAN
475 select SYS_SUPPORTS_HIGHMEM
476 select SYS_SUPPORTS_LITTLE_ENDIAN
477
478 config SIBYTE_RHONE
479 bool "Sibyte BCM91125E-Rhone"
480 depends on EXPERIMENTAL
481 select BOOT_ELF32
482 select DMA_COHERENT
483 select SIBYTE_BCM1125H
484 select SWAP_IO_SPACE
485 select SYS_HAS_CPU_SB1
486 select SYS_SUPPORTS_BIG_ENDIAN
487 select SYS_SUPPORTS_LITTLE_ENDIAN
488
489 config SIBYTE_SWARM
490 bool "Sibyte BCM91250A-SWARM"
491 select BOOT_ELF32
492 select DMA_COHERENT
493 select NR_CPUS_DEFAULT_2
494 select SIBYTE_SB1250
495 select SWAP_IO_SPACE
496 select SYS_HAS_CPU_SB1
497 select SYS_SUPPORTS_BIG_ENDIAN
498 select SYS_SUPPORTS_HIGHMEM
499 select SYS_SUPPORTS_KGDB
500 select SYS_SUPPORTS_LITTLE_ENDIAN
501
502 config SIBYTE_LITTLESUR
503 bool "Sibyte BCM91250C2-LittleSur"
504 depends on EXPERIMENTAL
505 select BOOT_ELF32
506 select DMA_COHERENT
507 select NR_CPUS_DEFAULT_2
508 select SIBYTE_SB1250
509 select SWAP_IO_SPACE
510 select SYS_HAS_CPU_SB1
511 select SYS_SUPPORTS_BIG_ENDIAN
512 select SYS_SUPPORTS_HIGHMEM
513 select SYS_SUPPORTS_LITTLE_ENDIAN
514
515 config SIBYTE_SENTOSA
516 bool "Sibyte BCM91250E-Sentosa"
517 depends on EXPERIMENTAL
518 select BOOT_ELF32
519 select DMA_COHERENT
520 select NR_CPUS_DEFAULT_2
521 select SIBYTE_SB1250
522 select SWAP_IO_SPACE
523 select SYS_HAS_CPU_SB1
524 select SYS_SUPPORTS_BIG_ENDIAN
525 select SYS_SUPPORTS_LITTLE_ENDIAN
526
527 config SIBYTE_PTSWARM
528 bool "Sibyte BCM91250PT-PTSWARM"
529 depends on EXPERIMENTAL
530 select BOOT_ELF32
531 select DMA_COHERENT
532 select NR_CPUS_DEFAULT_2
533 select SIBYTE_SB1250
534 select SWAP_IO_SPACE
535 select SYS_HAS_CPU_SB1
536 select SYS_SUPPORTS_BIG_ENDIAN
537 select SYS_SUPPORTS_HIGHMEM
538 select SYS_SUPPORTS_LITTLE_ENDIAN
539
540 config SIBYTE_BIGSUR
541 bool "Sibyte BCM91480B-BigSur"
542 select BOOT_ELF32
543 select DMA_COHERENT
544 select NR_CPUS_DEFAULT_4
545 select SIBYTE_BCM1x80
546 select SWAP_IO_SPACE
547 select SYS_HAS_CPU_SB1
548 select SYS_SUPPORTS_BIG_ENDIAN
549 select SYS_SUPPORTS_HIGHMEM
550 select SYS_SUPPORTS_LITTLE_ENDIAN
551
552 config SNI_RM
553 bool "SNI RM200/300/400"
554 select ARC if CPU_LITTLE_ENDIAN
555 select ARC32 if CPU_LITTLE_ENDIAN
556 select ARCH_MAY_HAVE_PC_FDC
557 select BOOT_ELF32
558 select CEVT_R4K
559 select DMA_NONCOHERENT
560 select GENERIC_ISA_DMA
561 select HW_HAS_EISA
562 select HW_HAS_PCI
563 select IRQ_CPU
564 select I8253
565 select I8259
566 select ISA
567 select PCSPEAKER
568 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
569 select SYS_HAS_CPU_R4X00
570 select SYS_HAS_CPU_R5000
571 select SYS_HAS_CPU_R10000
572 select R5000_CPU_SCACHE
573 select SYS_HAS_EARLY_PRINTK
574 select SYS_SUPPORTS_32BIT_KERNEL
575 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
576 select SYS_SUPPORTS_BIG_ENDIAN
577 select SYS_SUPPORTS_HIGHMEM
578 select SYS_SUPPORTS_LITTLE_ENDIAN
579 help
580 The SNI RM200/300/400 are MIPS-based machines manufactured by
581 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
582 Technology and now in turn merged with Fujitsu. Say Y here to
583 support this machine type.
584
585 config TOSHIBA_JMR3927
586 bool "Toshiba JMR-TX3927 board"
587 select CEVT_TXX9
588 select DMA_NONCOHERENT
589 select HW_HAS_PCI
590 select MIPS_TX3927
591 select IRQ_TXX9
592 select SWAP_IO_SPACE
593 select SYS_HAS_CPU_TX39XX
594 select SYS_SUPPORTS_32BIT_KERNEL
595 select SYS_SUPPORTS_LITTLE_ENDIAN
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select GENERIC_HARDIRQS_NO__DO_IRQ
598
599 config TOSHIBA_RBTX4927
600 bool "Toshiba RBTX49[23]7 board"
601 select CEVT_R4K
602 select CEVT_TXX9
603 select DMA_NONCOHERENT
604 select HAS_TXX9_SERIAL
605 select HW_HAS_PCI
606 select IRQ_CPU
607 select IRQ_TXX9
608 select I8259 if TOSHIBA_FPCIB0
609 select SWAP_IO_SPACE
610 select SYS_HAS_CPU_TX49XX
611 select SYS_SUPPORTS_32BIT_KERNEL
612 select SYS_SUPPORTS_64BIT_KERNEL
613 select SYS_SUPPORTS_LITTLE_ENDIAN
614 select SYS_SUPPORTS_BIG_ENDIAN
615 select SYS_SUPPORTS_KGDB
616 select GENERIC_HARDIRQS_NO__DO_IRQ
617 help
618 This Toshiba board is based on the TX4927 processor. Say Y here to
619 support this machine type
620
621 config TOSHIBA_RBTX4938
622 bool "Toshiba RBTX4938 board"
623 select CEVT_R4K
624 select CEVT_TXX9
625 select DMA_NONCOHERENT
626 select HAS_TXX9_SERIAL
627 select HW_HAS_PCI
628 select IRQ_CPU
629 select IRQ_TXX9
630 select SWAP_IO_SPACE
631 select SYS_HAS_CPU_TX49XX
632 select SYS_SUPPORTS_32BIT_KERNEL
633 select SYS_SUPPORTS_LITTLE_ENDIAN
634 select SYS_SUPPORTS_BIG_ENDIAN
635 select SYS_SUPPORTS_KGDB
636 select GENERIC_HARDIRQS_NO__DO_IRQ
637 select GENERIC_GPIO
638 help
639 This Toshiba board is based on the TX4938 processor. Say Y here to
640 support this machine type
641
642 config WR_PPMC
643 bool "Wind River PPMC board"
644 select CEVT_R4K
645 select IRQ_CPU
646 select BOOT_ELF32
647 select DMA_NONCOHERENT
648 select HW_HAS_PCI
649 select PCI_GT64XXX_PCI0
650 select SWAP_IO_SPACE
651 select SYS_HAS_CPU_MIPS32_R1
652 select SYS_HAS_CPU_MIPS32_R2
653 select SYS_HAS_CPU_MIPS64_R1
654 select SYS_HAS_CPU_NEVADA
655 select SYS_HAS_CPU_RM7000
656 select SYS_SUPPORTS_32BIT_KERNEL
657 select SYS_SUPPORTS_64BIT_KERNEL
658 select SYS_SUPPORTS_BIG_ENDIAN
659 select SYS_SUPPORTS_LITTLE_ENDIAN
660 help
661 This enables support for the Wind River MIPS32 4KC PPMC evaluation
662 board, which is based on GT64120 bridge chip.
663
664 endchoice
665
666 source "arch/mips/au1000/Kconfig"
667 source "arch/mips/jazz/Kconfig"
668 source "arch/mips/lasat/Kconfig"
669 source "arch/mips/pmc-sierra/Kconfig"
670 source "arch/mips/sgi-ip27/Kconfig"
671 source "arch/mips/sibyte/Kconfig"
672 source "arch/mips/tx4927/Kconfig"
673 source "arch/mips/tx4938/Kconfig"
674 source "arch/mips/vr41xx/Kconfig"
675
676 endmenu
677
678 config RWSEM_GENERIC_SPINLOCK
679 bool
680 default y
681
682 config RWSEM_XCHGADD_ALGORITHM
683 bool
684
685 config ARCH_HAS_ILOG2_U32
686 bool
687 default n
688
689 config ARCH_HAS_ILOG2_U64
690 bool
691 default n
692
693 config GENERIC_FIND_NEXT_BIT
694 bool
695 default y
696
697 config GENERIC_HWEIGHT
698 bool
699 default y
700
701 config GENERIC_CALIBRATE_DELAY
702 bool
703 default y
704
705 config GENERIC_CLOCKEVENTS
706 bool
707 default y
708
709 config GENERIC_TIME
710 bool
711 default y
712
713 config GENERIC_CMOS_UPDATE
714 bool
715 default y
716
717 config SCHED_NO_NO_OMIT_FRAME_POINTER
718 bool
719 default y
720
721 config GENERIC_HARDIRQS_NO__DO_IRQ
722 bool
723 default n
724
725 #
726 # Select some configuration options automatically based on user selections.
727 #
728 config ARC
729 bool
730
731 config ARCH_MAY_HAVE_PC_FDC
732 bool
733
734 config BOOT_RAW
735 bool
736
737 config CEVT_BCM1480
738 bool
739
740 config CEVT_GT641XX
741 bool
742
743 config CEVT_R4K
744 bool
745
746 config CEVT_SB1250
747 bool
748
749 config CEVT_TXX9
750 bool
751
752 config CSRC_BCM1480
753 bool
754
755 config CSRC_SB1250
756 bool
757
758 config CFE
759 bool
760
761 config DMA_COHERENT
762 bool
763
764 config DMA_IP27
765 bool
766
767 config DMA_IP32
768 bool
769 select DMA_NEED_PCI_MAP_STATE
770
771 config DMA_NONCOHERENT
772 bool
773 select DMA_NEED_PCI_MAP_STATE
774
775 config DMA_NEED_PCI_MAP_STATE
776 bool
777
778 config EARLY_PRINTK
779 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
780 depends on SYS_HAS_EARLY_PRINTK
781 default y
782 help
783 This option enables special console drivers which allow the kernel
784 to print messages very early in the bootup process.
785
786 This is useful for kernel debugging when your machine crashes very
787 early before the console code is initialized. For normal operation,
788 it is not recommended because it looks ugly on some machines and
789 doesn't cooperate with an X server. You should normally say N here,
790 unless you want to debug such a crash.
791
792 config SYS_HAS_EARLY_PRINTK
793 bool
794
795 config HOTPLUG_CPU
796 bool
797 default n
798
799 config I8259
800 bool
801
802 config MIPS_BONITO64
803 bool
804
805 config MIPS_MSC
806 bool
807
808 config MIPS_NILE4
809 bool
810
811 config MIPS_DISABLE_OBSOLETE_IDE
812 bool
813
814 config NO_IOPORT
815 def_bool n
816
817 config GENERIC_ISA_DMA
818 bool
819 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
820
821 config GENERIC_ISA_DMA_SUPPORT_BROKEN
822 bool
823 select GENERIC_ISA_DMA
824
825 config GENERIC_GPIO
826 bool
827
828 #
829 # Endianess selection. Sufficiently obscure so many users don't know what to
830 # answer,so we try hard to limit the available choices. Also the use of a
831 # choice statement should be more obvious to the user.
832 #
833 choice
834 prompt "Endianess selection"
835 help
836 Some MIPS machines can be configured for either little or big endian
837 byte order. These modes require different kernels and a different
838 Linux distribution. In general there is one preferred byteorder for a
839 particular system but some systems are just as commonly used in the
840 one or the other endianness.
841
842 config CPU_BIG_ENDIAN
843 bool "Big endian"
844 depends on SYS_SUPPORTS_BIG_ENDIAN
845
846 config CPU_LITTLE_ENDIAN
847 bool "Little endian"
848 depends on SYS_SUPPORTS_LITTLE_ENDIAN
849 help
850
851 endchoice
852
853 config SYS_SUPPORTS_APM_EMULATION
854 bool
855
856 config SYS_SUPPORTS_BIG_ENDIAN
857 bool
858
859 config SYS_SUPPORTS_LITTLE_ENDIAN
860 bool
861
862 config IRQ_CPU
863 bool
864
865 config IRQ_CPU_RM7K
866 bool
867
868 config IRQ_CPU_RM9K
869 bool
870
871 config IRQ_MSP_SLP
872 bool
873
874 config IRQ_MSP_CIC
875 bool
876
877 config IRQ_TXX9
878 bool
879
880 config IRQ_GT641XX
881 bool
882
883 config MIPS_BOARDS_GEN
884 bool
885
886 config PCI_GT64XXX_PCI0
887 bool
888
889 config NO_EXCEPT_FILL
890 bool
891
892 config MIPS_TX3927
893 bool
894 select HAS_TXX9_SERIAL
895
896 config MIPS_RM9122
897 bool
898 select SERIAL_RM9000
899
900 config PNX8550
901 bool
902 select SOC_PNX8550
903
904 config SOC_PNX8550
905 bool
906 select DMA_NONCOHERENT
907 select HW_HAS_PCI
908 select SYS_HAS_CPU_MIPS32_R1
909 select SYS_HAS_EARLY_PRINTK
910 select SYS_SUPPORTS_32BIT_KERNEL
911 select GENERIC_HARDIRQS_NO__DO_IRQ
912 select SYS_SUPPORTS_KGDB
913 select GENERIC_GPIO
914
915 config SWAP_IO_SPACE
916 bool
917
918 config EMMA2RH
919 bool
920 depends on MARKEINS
921 default y
922
923 config SERIAL_RM9000
924 bool
925
926 config ARC32
927 bool
928
929 config BOOT_ELF32
930 bool
931
932 config MIPS_L1_CACHE_SHIFT
933 int
934 default "4" if MACH_DECSTATION
935 default "7" if SGI_IP27 || SNI_RM
936 default "4" if PMC_MSP4200_EVAL
937 default "5"
938
939 config HAVE_STD_PC_SERIAL_PORT
940 bool
941
942 config ARC_CONSOLE
943 bool "ARC console support"
944 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
945
946 config ARC_MEMORY
947 bool
948 depends on MACH_JAZZ || SNI_RM || SGI_IP32
949 default y
950
951 config ARC_PROMLIB
952 bool
953 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
954 default y
955
956 config ARC64
957 bool
958
959 config BOOT_ELF64
960 bool
961
962 menu "CPU selection"
963
964 source "kernel/time/Kconfig"
965
966 choice
967 prompt "CPU type"
968 default CPU_R4X00
969
970 config CPU_LOONGSON2
971 bool "Loongson 2"
972 depends on SYS_HAS_CPU_LOONGSON2
973 select CPU_SUPPORTS_32BIT_KERNEL
974 select CPU_SUPPORTS_64BIT_KERNEL
975 select CPU_SUPPORTS_HIGHMEM
976 help
977 The Loongson 2E processor implements the MIPS III instruction set
978 with many extensions.
979
980 config CPU_MIPS32_R1
981 bool "MIPS32 Release 1"
982 depends on SYS_HAS_CPU_MIPS32_R1
983 select CPU_HAS_LLSC
984 select CPU_HAS_PREFETCH
985 select CPU_SUPPORTS_32BIT_KERNEL
986 select CPU_SUPPORTS_HIGHMEM
987 help
988 Choose this option to build a kernel for release 1 or later of the
989 MIPS32 architecture. Most modern embedded systems with a 32-bit
990 MIPS processor are based on a MIPS32 processor. If you know the
991 specific type of processor in your system, choose those that one
992 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
993 Release 2 of the MIPS32 architecture is available since several
994 years so chances are you even have a MIPS32 Release 2 processor
995 in which case you should choose CPU_MIPS32_R2 instead for better
996 performance.
997
998 config CPU_MIPS32_R2
999 bool "MIPS32 Release 2"
1000 depends on SYS_HAS_CPU_MIPS32_R2
1001 select CPU_HAS_LLSC
1002 select CPU_HAS_PREFETCH
1003 select CPU_SUPPORTS_32BIT_KERNEL
1004 select CPU_SUPPORTS_HIGHMEM
1005 help
1006 Choose this option to build a kernel for release 2 or later of the
1007 MIPS32 architecture. Most modern embedded systems with a 32-bit
1008 MIPS processor are based on a MIPS32 processor. If you know the
1009 specific type of processor in your system, choose those that one
1010 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1011
1012 config CPU_MIPS64_R1
1013 bool "MIPS64 Release 1"
1014 depends on SYS_HAS_CPU_MIPS64_R1
1015 select CPU_HAS_LLSC
1016 select CPU_HAS_PREFETCH
1017 select CPU_SUPPORTS_32BIT_KERNEL
1018 select CPU_SUPPORTS_64BIT_KERNEL
1019 select CPU_SUPPORTS_HIGHMEM
1020 help
1021 Choose this option to build a kernel for release 1 or later of the
1022 MIPS64 architecture. Many modern embedded systems with a 64-bit
1023 MIPS processor are based on a MIPS64 processor. If you know the
1024 specific type of processor in your system, choose those that one
1025 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1026 Release 2 of the MIPS64 architecture is available since several
1027 years so chances are you even have a MIPS64 Release 2 processor
1028 in which case you should choose CPU_MIPS64_R2 instead for better
1029 performance.
1030
1031 config CPU_MIPS64_R2
1032 bool "MIPS64 Release 2"
1033 depends on SYS_HAS_CPU_MIPS64_R2
1034 select CPU_HAS_LLSC
1035 select CPU_HAS_PREFETCH
1036 select CPU_SUPPORTS_32BIT_KERNEL
1037 select CPU_SUPPORTS_64BIT_KERNEL
1038 select CPU_SUPPORTS_HIGHMEM
1039 help
1040 Choose this option to build a kernel for release 2 or later of the
1041 MIPS64 architecture. Many modern embedded systems with a 64-bit
1042 MIPS processor are based on a MIPS64 processor. If you know the
1043 specific type of processor in your system, choose those that one
1044 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1045
1046 config CPU_R3000
1047 bool "R3000"
1048 depends on SYS_HAS_CPU_R3000
1049 select CPU_HAS_WB
1050 select CPU_SUPPORTS_32BIT_KERNEL
1051 select CPU_SUPPORTS_HIGHMEM
1052 help
1053 Please make sure to pick the right CPU type. Linux/MIPS is not
1054 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1055 *not* work on R4000 machines and vice versa. However, since most
1056 of the supported machines have an R4000 (or similar) CPU, R4x00
1057 might be a safe bet. If the resulting kernel does not work,
1058 try to recompile with R3000.
1059
1060 config CPU_TX39XX
1061 bool "R39XX"
1062 depends on SYS_HAS_CPU_TX39XX
1063 select CPU_SUPPORTS_32BIT_KERNEL
1064
1065 config CPU_VR41XX
1066 bool "R41xx"
1067 depends on SYS_HAS_CPU_VR41XX
1068 select CPU_SUPPORTS_32BIT_KERNEL
1069 select CPU_SUPPORTS_64BIT_KERNEL
1070 help
1071 The options selects support for the NEC VR4100 series of processors.
1072 Only choose this option if you have one of these processors as a
1073 kernel built with this option will not run on any other type of
1074 processor or vice versa.
1075
1076 config CPU_R4300
1077 bool "R4300"
1078 depends on SYS_HAS_CPU_R4300
1079 select CPU_HAS_LLSC
1080 select CPU_SUPPORTS_32BIT_KERNEL
1081 select CPU_SUPPORTS_64BIT_KERNEL
1082 help
1083 MIPS Technologies R4300-series processors.
1084
1085 config CPU_R4X00
1086 bool "R4x00"
1087 depends on SYS_HAS_CPU_R4X00
1088 select CPU_HAS_LLSC
1089 select CPU_SUPPORTS_32BIT_KERNEL
1090 select CPU_SUPPORTS_64BIT_KERNEL
1091 help
1092 MIPS Technologies R4000-series processors other than 4300, including
1093 the R4000, R4400, R4600, and 4700.
1094
1095 config CPU_TX49XX
1096 bool "R49XX"
1097 depends on SYS_HAS_CPU_TX49XX
1098 select CPU_HAS_LLSC
1099 select CPU_HAS_PREFETCH
1100 select CPU_SUPPORTS_32BIT_KERNEL
1101 select CPU_SUPPORTS_64BIT_KERNEL
1102
1103 config CPU_R5000
1104 bool "R5000"
1105 depends on SYS_HAS_CPU_R5000
1106 select CPU_HAS_LLSC
1107 select CPU_SUPPORTS_32BIT_KERNEL
1108 select CPU_SUPPORTS_64BIT_KERNEL
1109 help
1110 MIPS Technologies R5000-series processors other than the Nevada.
1111
1112 config CPU_R5432
1113 bool "R5432"
1114 depends on SYS_HAS_CPU_R5432
1115 select CPU_HAS_LLSC
1116 select CPU_SUPPORTS_32BIT_KERNEL
1117 select CPU_SUPPORTS_64BIT_KERNEL
1118
1119 config CPU_R6000
1120 bool "R6000"
1121 depends on EXPERIMENTAL
1122 select CPU_HAS_LLSC
1123 depends on SYS_HAS_CPU_R6000
1124 select CPU_SUPPORTS_32BIT_KERNEL
1125 help
1126 MIPS Technologies R6000 and R6000A series processors. Note these
1127 processors are extremely rare and the support for them is incomplete.
1128
1129 config CPU_NEVADA
1130 bool "RM52xx"
1131 depends on SYS_HAS_CPU_NEVADA
1132 select CPU_HAS_LLSC
1133 select CPU_SUPPORTS_32BIT_KERNEL
1134 select CPU_SUPPORTS_64BIT_KERNEL
1135 help
1136 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1137
1138 config CPU_R8000
1139 bool "R8000"
1140 depends on EXPERIMENTAL
1141 depends on SYS_HAS_CPU_R8000
1142 select CPU_HAS_LLSC
1143 select CPU_HAS_PREFETCH
1144 select CPU_SUPPORTS_64BIT_KERNEL
1145 help
1146 MIPS Technologies R8000 processors. Note these processors are
1147 uncommon and the support for them is incomplete.
1148
1149 config CPU_R10000
1150 bool "R10000"
1151 depends on SYS_HAS_CPU_R10000
1152 select CPU_HAS_LLSC
1153 select CPU_HAS_PREFETCH
1154 select CPU_SUPPORTS_32BIT_KERNEL
1155 select CPU_SUPPORTS_64BIT_KERNEL
1156 select CPU_SUPPORTS_HIGHMEM
1157 help
1158 MIPS Technologies R10000-series processors.
1159
1160 config CPU_RM7000
1161 bool "RM7000"
1162 depends on SYS_HAS_CPU_RM7000
1163 select CPU_HAS_LLSC
1164 select CPU_HAS_PREFETCH
1165 select CPU_SUPPORTS_32BIT_KERNEL
1166 select CPU_SUPPORTS_64BIT_KERNEL
1167 select CPU_SUPPORTS_HIGHMEM
1168
1169 config CPU_RM9000
1170 bool "RM9000"
1171 depends on SYS_HAS_CPU_RM9000
1172 select CPU_HAS_LLSC
1173 select CPU_HAS_PREFETCH
1174 select CPU_SUPPORTS_32BIT_KERNEL
1175 select CPU_SUPPORTS_64BIT_KERNEL
1176 select CPU_SUPPORTS_HIGHMEM
1177 select WEAK_ORDERING
1178
1179 config CPU_SB1
1180 bool "SB1"
1181 depends on SYS_HAS_CPU_SB1
1182 select CPU_HAS_LLSC
1183 select CPU_SUPPORTS_32BIT_KERNEL
1184 select CPU_SUPPORTS_64BIT_KERNEL
1185 select CPU_SUPPORTS_HIGHMEM
1186 select WEAK_ORDERING
1187
1188 endchoice
1189
1190 config SYS_HAS_CPU_LOONGSON2
1191 bool
1192
1193 config SYS_HAS_CPU_MIPS32_R1
1194 bool
1195
1196 config SYS_HAS_CPU_MIPS32_R2
1197 bool
1198
1199 config SYS_HAS_CPU_MIPS64_R1
1200 bool
1201
1202 config SYS_HAS_CPU_MIPS64_R2
1203 bool
1204
1205 config SYS_HAS_CPU_R3000
1206 bool
1207
1208 config SYS_HAS_CPU_TX39XX
1209 bool
1210
1211 config SYS_HAS_CPU_VR41XX
1212 bool
1213
1214 config SYS_HAS_CPU_R4300
1215 bool
1216
1217 config SYS_HAS_CPU_R4X00
1218 bool
1219
1220 config SYS_HAS_CPU_TX49XX
1221 bool
1222
1223 config SYS_HAS_CPU_R5000
1224 bool
1225
1226 config SYS_HAS_CPU_R5432
1227 bool
1228
1229 config SYS_HAS_CPU_R6000
1230 bool
1231
1232 config SYS_HAS_CPU_NEVADA
1233 bool
1234
1235 config SYS_HAS_CPU_R8000
1236 bool
1237
1238 config SYS_HAS_CPU_R10000
1239 bool
1240
1241 config SYS_HAS_CPU_RM7000
1242 bool
1243
1244 config SYS_HAS_CPU_RM9000
1245 bool
1246
1247 config SYS_HAS_CPU_SB1
1248 bool
1249
1250 #
1251 # CPU may reorder R->R, R->W, W->R, W->W
1252 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1253 #
1254 config WEAK_ORDERING
1255 bool
1256
1257 #
1258 # CPU may reorder reads and writes beyond LL/SC
1259 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1260 #
1261 config WEAK_REORDERING_BEYOND_LLSC
1262 bool
1263 endmenu
1264
1265 #
1266 # These two indicate any level of the MIPS32 and MIPS64 architecture
1267 #
1268 config CPU_MIPS32
1269 bool
1270 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1271
1272 config CPU_MIPS64
1273 bool
1274 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1275
1276 #
1277 # These two indicate the revision of the architecture, either Release 1 or Release 2
1278 #
1279 config CPU_MIPSR1
1280 bool
1281 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1282
1283 config CPU_MIPSR2
1284 bool
1285 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1286
1287 config SYS_SUPPORTS_32BIT_KERNEL
1288 bool
1289 config SYS_SUPPORTS_64BIT_KERNEL
1290 bool
1291 config CPU_SUPPORTS_32BIT_KERNEL
1292 bool
1293 config CPU_SUPPORTS_64BIT_KERNEL
1294 bool
1295
1296 menu "Kernel type"
1297
1298 choice
1299
1300 prompt "Kernel code model"
1301 help
1302 You should only select this option if you have a workload that
1303 actually benefits from 64-bit processing or if your machine has
1304 large memory. You will only be presented a single option in this
1305 menu if your system does not support both 32-bit and 64-bit kernels.
1306
1307 config 32BIT
1308 bool "32-bit kernel"
1309 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1310 select TRAD_SIGNALS
1311 help
1312 Select this option if you want to build a 32-bit kernel.
1313 config 64BIT
1314 bool "64-bit kernel"
1315 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1316 help
1317 Select this option if you want to build a 64-bit kernel.
1318
1319 endchoice
1320
1321 choice
1322 prompt "Kernel page size"
1323 default PAGE_SIZE_4KB
1324
1325 config PAGE_SIZE_4KB
1326 bool "4kB"
1327 help
1328 This option select the standard 4kB Linux page size. On some
1329 R3000-family processors this is the only available page size. Using
1330 4kB page size will minimize memory consumption and is therefore
1331 recommended for low memory systems.
1332
1333 config PAGE_SIZE_8KB
1334 bool "8kB"
1335 depends on EXPERIMENTAL && CPU_R8000
1336 help
1337 Using 8kB page size will result in higher performance kernel at
1338 the price of higher memory consumption. This option is available
1339 only on the R8000 processor. Not that at the time of this writing
1340 this option is still high experimental; there are also issues with
1341 compatibility of user applications.
1342
1343 config PAGE_SIZE_16KB
1344 bool "16kB"
1345 depends on !CPU_R3000 && !CPU_TX39XX
1346 help
1347 Using 16kB page size will result in higher performance kernel at
1348 the price of higher memory consumption. This option is available on
1349 all non-R3000 family processors. Note that you will need a suitable
1350 Linux distribution to support this.
1351
1352 config PAGE_SIZE_64KB
1353 bool "64kB"
1354 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1355 help
1356 Using 64kB page size will result in higher performance kernel at
1357 the price of higher memory consumption. This option is available on
1358 all non-R3000 family processor. Not that at the time of this
1359 writing this option is still high experimental.
1360
1361 endchoice
1362
1363 config BOARD_SCACHE
1364 bool
1365
1366 config IP22_CPU_SCACHE
1367 bool
1368 select BOARD_SCACHE
1369
1370 #
1371 # Support for a MIPS32 / MIPS64 style S-caches
1372 #
1373 config MIPS_CPU_SCACHE
1374 bool
1375 select BOARD_SCACHE
1376
1377 config R5000_CPU_SCACHE
1378 bool
1379 select BOARD_SCACHE
1380
1381 config RM7000_CPU_SCACHE
1382 bool
1383 select BOARD_SCACHE
1384
1385 config SIBYTE_DMA_PAGEOPS
1386 bool "Use DMA to clear/copy pages"
1387 depends on CPU_SB1
1388 help
1389 Instead of using the CPU to zero and copy pages, use a Data Mover
1390 channel. These DMA channels are otherwise unused by the standard
1391 SiByte Linux port. Seems to give a small performance benefit.
1392
1393 config CPU_HAS_PREFETCH
1394 bool
1395
1396 choice
1397 prompt "MIPS MT options"
1398
1399 config MIPS_MT_DISABLED
1400 bool "Disable multithreading support."
1401 help
1402 Use this option if your workload can't take advantage of
1403 MIPS hardware multithreading support. On systems that don't have
1404 the option of an MT-enabled processor this option will be the only
1405 option in this menu.
1406
1407 config MIPS_MT_SMP
1408 bool "Use 1 TC on each available VPE for SMP"
1409 depends on SYS_SUPPORTS_MULTITHREADING
1410 select CPU_MIPSR2_IRQ_VI
1411 select CPU_MIPSR2_IRQ_EI
1412 select CPU_MIPSR2_SRS
1413 select MIPS_MT
1414 select NR_CPUS_DEFAULT_2
1415 select SMP
1416 select SYS_SUPPORTS_SMP
1417 help
1418 This is a kernel model which is also known a VSMP or lately
1419 has been marketesed into SMVP.
1420
1421 config MIPS_MT_SMTC
1422 bool "SMTC: Use all TCs on all VPEs for SMP"
1423 depends on CPU_MIPS32_R2
1424 #depends on CPU_MIPS64_R2 # once there is hardware ...
1425 depends on SYS_SUPPORTS_MULTITHREADING
1426 select GENERIC_CLOCKEVENTS_BROADCAST
1427 select CPU_MIPSR2_IRQ_VI
1428 select CPU_MIPSR2_IRQ_EI
1429 select CPU_MIPSR2_SRS
1430 select MIPS_MT
1431 select NR_CPUS_DEFAULT_8
1432 select SMP
1433 select SYS_SUPPORTS_SMP
1434 help
1435 This is a kernel model which is known a SMTC or lately has been
1436 marketesed into SMVP.
1437
1438 endchoice
1439
1440 config MIPS_MT
1441 bool
1442
1443 config SYS_SUPPORTS_MULTITHREADING
1444 bool
1445
1446 config MIPS_MT_FPAFF
1447 bool "Dynamic FPU affinity for FP-intensive threads"
1448 default y
1449 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1450
1451 config MIPS_VPE_LOADER
1452 bool "VPE loader support."
1453 depends on SYS_SUPPORTS_MULTITHREADING
1454 select CPU_MIPSR2_IRQ_VI
1455 select CPU_MIPSR2_IRQ_EI
1456 select CPU_MIPSR2_SRS
1457 select MIPS_MT
1458 help
1459 Includes a loader for loading an elf relocatable object
1460 onto another VPE and running it.
1461
1462 config MIPS_MT_SMTC_INSTANT_REPLAY
1463 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1464 depends on MIPS_MT_SMTC && !PREEMPT
1465 default y
1466 help
1467 SMTC pseudo-interrupts between TCs are deferred and queued
1468 if the target TC is interrupt-inhibited (IXMT). In the first
1469 SMTC prototypes, these queued IPIs were serviced on return
1470 to user mode, or on entry into the kernel idle loop. The
1471 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1472 processing, which adds runtime overhead (hence the option to turn
1473 it off), but ensures that IPIs are handled promptly even under
1474 heavy I/O interrupt load.
1475
1476 config MIPS_MT_SMTC_IM_BACKSTOP
1477 bool "Use per-TC register bits as backstop for inhibited IM bits"
1478 depends on MIPS_MT_SMTC
1479 default y
1480 help
1481 To support multiple TC microthreads acting as "CPUs" within
1482 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1483 during interrupt handling. To support legacy drivers and interrupt
1484 controller management code, SMTC has a "backstop" to track and
1485 if necessary restore the interrupt mask. This has some performance
1486 impact on interrupt service overhead. Disable it only if you know
1487 what you are doing.
1488
1489 config MIPS_MT_SMTC_IRQAFF
1490 bool "Support IRQ affinity API"
1491 depends on MIPS_MT_SMTC
1492 default n
1493 help
1494 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1495 for SMTC Linux kernel. Requires platform support, of which
1496 an example can be found in the MIPS kernel i8259 and Malta
1497 platform code. It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
1498 be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
1499 interrupt dispatch, and should be used only if you know what
1500 you are doing.
1501
1502 config MIPS_VPE_LOADER_TOM
1503 bool "Load VPE program into memory hidden from linux"
1504 depends on MIPS_VPE_LOADER
1505 default y
1506 help
1507 The loader can use memory that is present but has been hidden from
1508 Linux using the kernel command line option "mem=xxMB". It's up to
1509 you to ensure the amount you put in the option and the space your
1510 program requires is less or equal to the amount physically present.
1511
1512 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1513 config MIPS_VPE_APSP_API
1514 bool "Enable support for AP/SP API (RTLX)"
1515 depends on MIPS_VPE_LOADER
1516 help
1517
1518 config MIPS_APSP_KSPD
1519 bool "Enable KSPD"
1520 depends on MIPS_VPE_APSP_API
1521 default y
1522 help
1523 KSPD is a kernel daemon that accepts syscall requests from the SP
1524 side, actions them and returns the results. It also handles the
1525 "exit" syscall notifying other kernel modules the SP program is
1526 exiting. You probably want to say yes here.
1527
1528 config SB1_PASS_1_WORKAROUNDS
1529 bool
1530 depends on CPU_SB1_PASS_1
1531 default y
1532
1533 config SB1_PASS_2_WORKAROUNDS
1534 bool
1535 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1536 default y
1537
1538 config SB1_PASS_2_1_WORKAROUNDS
1539 bool
1540 depends on CPU_SB1 && CPU_SB1_PASS_2
1541 default y
1542
1543 config 64BIT_PHYS_ADDR
1544 bool
1545
1546 config CPU_HAS_LLSC
1547 bool
1548
1549 config CPU_HAS_SMARTMIPS
1550 depends on SYS_SUPPORTS_SMARTMIPS
1551 bool "Support for the SmartMIPS ASE"
1552 help
1553 SmartMIPS is a extension of the MIPS32 architecture aimed at
1554 increased security at both hardware and software level for
1555 smartcards. Enabling this option will allow proper use of the
1556 SmartMIPS instructions by Linux applications. However a kernel with
1557 this option will not work on a MIPS core without SmartMIPS core. If
1558 you don't know you probably don't have SmartMIPS and should say N
1559 here.
1560
1561 config CPU_HAS_WB
1562 bool
1563
1564 config 64BIT_CONTEXT
1565 bool "Save 64bit integer registers"
1566 depends on 32BIT && CPU_LOONGSON2
1567 help
1568 Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
1569 registers can still be accessed as 64bit, mainly for multimedia
1570 instructions. We must have all 64bit save/restored to make sure
1571 those instructions to get correct result.
1572
1573 #
1574 # Vectored interrupt mode is an R2 feature
1575 #
1576 config CPU_MIPSR2_IRQ_VI
1577 bool
1578
1579 #
1580 # Extended interrupt mode is an R2 feature
1581 #
1582 config CPU_MIPSR2_IRQ_EI
1583 bool
1584
1585 #
1586 # Shadow registers are an R2 feature
1587 #
1588 config CPU_MIPSR2_SRS
1589 bool
1590
1591 config CPU_HAS_SYNC
1592 bool
1593 depends on !CPU_R3000
1594 default y
1595
1596 config GENERIC_CLOCKEVENTS_BROADCAST
1597 bool
1598
1599 #
1600 # Use the generic interrupt handling code in kernel/irq/:
1601 #
1602 config GENERIC_HARDIRQS
1603 bool
1604 default y
1605
1606 config GENERIC_IRQ_PROBE
1607 bool
1608 default y
1609
1610 config IRQ_PER_CPU
1611 bool
1612
1613 #
1614 # - Highmem only makes sense for the 32-bit kernel.
1615 # - The current highmem code will only work properly on physically indexed
1616 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1617 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1618 # moment we protect the user and offer the highmem option only on machines
1619 # where it's known to be safe. This will not offer highmem on a few systems
1620 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1621 # indexed CPUs but we're playing safe.
1622 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1623 # know they might have memory configurations that could make use of highmem
1624 # support.
1625 #
1626 config HIGHMEM
1627 bool "High Memory Support"
1628 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1629
1630 config CPU_SUPPORTS_HIGHMEM
1631 bool
1632
1633 config SYS_SUPPORTS_HIGHMEM
1634 bool
1635
1636 config SYS_SUPPORTS_SMARTMIPS
1637 bool
1638
1639 config ARCH_FLATMEM_ENABLE
1640 def_bool y
1641 depends on !NUMA
1642
1643 config ARCH_DISCONTIGMEM_ENABLE
1644 bool
1645 default y if SGI_IP27
1646 help
1647 Say Y to support efficient handling of discontiguous physical memory,
1648 for architectures which are either NUMA (Non-Uniform Memory Access)
1649 or have huge holes in the physical address space for other reasons.
1650 See <file:Documentation/vm/numa> for more.
1651
1652 config ARCH_SPARSEMEM_ENABLE
1653 bool
1654 select SPARSEMEM_STATIC
1655
1656 config NUMA
1657 bool "NUMA Support"
1658 depends on SYS_SUPPORTS_NUMA
1659 help
1660 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1661 Access). This option improves performance on systems with more
1662 than two nodes; on two node systems it is generally better to
1663 leave it disabled; on single node systems disable this option
1664 disabled.
1665
1666 config SYS_SUPPORTS_NUMA
1667 bool
1668
1669 config NODES_SHIFT
1670 int
1671 default "6"
1672 depends on NEED_MULTIPLE_NODES
1673
1674 source "mm/Kconfig"
1675
1676 config SMP
1677 bool "Multi-Processing support"
1678 depends on SYS_SUPPORTS_SMP
1679 select IRQ_PER_CPU
1680 help
1681 This enables support for systems with more than one CPU. If you have
1682 a system with only one CPU, like most personal computers, say N. If
1683 you have a system with more than one CPU, say Y.
1684
1685 If you say N here, the kernel will run on single and multiprocessor
1686 machines, but will use only one CPU of a multiprocessor machine. If
1687 you say Y here, the kernel will run on many, but not all,
1688 singleprocessor machines. On a singleprocessor machine, the kernel
1689 will run faster if you say N here.
1690
1691 People using multiprocessor machines who say Y here should also say
1692 Y to "Enhanced Real Time Clock Support", below.
1693
1694 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1695 available at <http://www.tldp.org/docs.html#howto>.
1696
1697 If you don't know what to do here, say N.
1698
1699 config SYS_SUPPORTS_SMP
1700 bool
1701
1702 config NR_CPUS_DEFAULT_1
1703 bool
1704
1705 config NR_CPUS_DEFAULT_2
1706 bool
1707
1708 config NR_CPUS_DEFAULT_4
1709 bool
1710
1711 config NR_CPUS_DEFAULT_8
1712 bool
1713
1714 config NR_CPUS_DEFAULT_16
1715 bool
1716
1717 config NR_CPUS_DEFAULT_32
1718 bool
1719
1720 config NR_CPUS_DEFAULT_64
1721 bool
1722
1723 config NR_CPUS
1724 int "Maximum number of CPUs (2-64)"
1725 range 1 64 if NR_CPUS_DEFAULT_1
1726 depends on SMP
1727 default "1" if NR_CPUS_DEFAULT_1
1728 default "2" if NR_CPUS_DEFAULT_2
1729 default "4" if NR_CPUS_DEFAULT_4
1730 default "8" if NR_CPUS_DEFAULT_8
1731 default "16" if NR_CPUS_DEFAULT_16
1732 default "32" if NR_CPUS_DEFAULT_32
1733 default "64" if NR_CPUS_DEFAULT_64
1734 help
1735 This allows you to specify the maximum number of CPUs which this
1736 kernel will support. The maximum supported value is 32 for 32-bit
1737 kernel and 64 for 64-bit kernels; the minimum value which makes
1738 sense is 1 for Qemu (useful only for kernel debugging purposes)
1739 and 2 for all others.
1740
1741 This is purely to save memory - each supported CPU adds
1742 approximately eight kilobytes to the kernel image. For best
1743 performance should round up your number of processors to the next
1744 power of two.
1745
1746 #
1747 # Timer Interrupt Frequency Configuration
1748 #
1749
1750 choice
1751 prompt "Timer frequency"
1752 default HZ_250
1753 help
1754 Allows the configuration of the timer frequency.
1755
1756 config HZ_48
1757 bool "48 HZ" if SYS_SUPPORTS_48HZ
1758
1759 config HZ_100
1760 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1761
1762 config HZ_128
1763 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1764
1765 config HZ_250
1766 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1767
1768 config HZ_256
1769 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1770
1771 config HZ_1000
1772 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1773
1774 config HZ_1024
1775 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1776
1777 endchoice
1778
1779 config SYS_SUPPORTS_48HZ
1780 bool
1781
1782 config SYS_SUPPORTS_100HZ
1783 bool
1784
1785 config SYS_SUPPORTS_128HZ
1786 bool
1787
1788 config SYS_SUPPORTS_250HZ
1789 bool
1790
1791 config SYS_SUPPORTS_256HZ
1792 bool
1793
1794 config SYS_SUPPORTS_1000HZ
1795 bool
1796
1797 config SYS_SUPPORTS_1024HZ
1798 bool
1799
1800 config SYS_SUPPORTS_ARBIT_HZ
1801 bool
1802 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1803 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1804 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1805 !SYS_SUPPORTS_1024HZ
1806
1807 config HZ
1808 int
1809 default 48 if HZ_48
1810 default 100 if HZ_100
1811 default 128 if HZ_128
1812 default 250 if HZ_250
1813 default 256 if HZ_256
1814 default 1000 if HZ_1000
1815 default 1024 if HZ_1024
1816
1817 source "kernel/Kconfig.preempt"
1818
1819 config MIPS_INSANE_LARGE
1820 bool "Support for large 64-bit configurations"
1821 depends on CPU_R10000 && 64BIT
1822 help
1823 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1824 previous 64-bit processors which only supported 40 bit / 1TB. If you
1825 need processes of more than 1TB virtual address space, say Y here.
1826 This will result in additional memory usage, so it is not
1827 recommended for normal users.
1828
1829 config KEXEC
1830 bool "Kexec system call (EXPERIMENTAL)"
1831 depends on EXPERIMENTAL
1832 help
1833 kexec is a system call that implements the ability to shutdown your
1834 current kernel, and to start another kernel. It is like a reboot
1835 but it is independent of the system firmware. And like a reboot
1836 you can start any kernel with it, not just Linux.
1837
1838 The name comes from the similarity to the exec system call.
1839
1840 It is an ongoing process to be certain the hardware in a machine
1841 is properly shutdown, so do not be surprised if this code does not
1842 initially work for you. It may help to enable device hotplugging
1843 support. As of this writing the exact hardware interface is
1844 strongly in flux, so no good recommendation can be made.
1845
1846 config SECCOMP
1847 bool "Enable seccomp to safely compute untrusted bytecode"
1848 depends on PROC_FS
1849 default y
1850 help
1851 This kernel feature is useful for number crunching applications
1852 that may need to compute untrusted bytecode during their
1853 execution. By using pipes or other transports made available to
1854 the process as file descriptors supporting the read/write
1855 syscalls, it's possible to isolate those applications in
1856 their own address space using seccomp. Once seccomp is
1857 enabled via /proc/<pid>/seccomp, it cannot be disabled
1858 and the task is only allowed to execute a few safe syscalls
1859 defined by each seccomp mode.
1860
1861 If unsure, say Y. Only embedded should say N here.
1862
1863 endmenu
1864
1865 config RWSEM_GENERIC_SPINLOCK
1866 bool
1867 default y
1868
1869 config LOCKDEP_SUPPORT
1870 bool
1871 default y
1872
1873 config STACKTRACE_SUPPORT
1874 bool
1875 default y
1876
1877 source "init/Kconfig"
1878
1879 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1880
1881 config HW_HAS_EISA
1882 bool
1883 config HW_HAS_PCI
1884 bool
1885
1886 config PCI
1887 bool "Support for PCI controller"
1888 depends on HW_HAS_PCI
1889 select PCI_DOMAINS
1890 help
1891 Find out whether you have a PCI motherboard. PCI is the name of a
1892 bus system, i.e. the way the CPU talks to the other stuff inside
1893 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1894 say Y, otherwise N.
1895
1896 The PCI-HOWTO, available from
1897 <http://www.tldp.org/docs.html#howto>, contains valuable
1898 information about which PCI hardware does work under Linux and which
1899 doesn't.
1900
1901 config PCI_DOMAINS
1902 bool
1903
1904 source "drivers/pci/Kconfig"
1905
1906 #
1907 # ISA support is now enabled via select. Too many systems still have the one
1908 # or other ISA chip on the board that users don't know about so don't expect
1909 # users to choose the right thing ...
1910 #
1911 config ISA
1912 bool
1913
1914 config EISA
1915 bool "EISA support"
1916 depends on HW_HAS_EISA
1917 select ISA
1918 select GENERIC_ISA_DMA
1919 ---help---
1920 The Extended Industry Standard Architecture (EISA) bus was
1921 developed as an open alternative to the IBM MicroChannel bus.
1922
1923 The EISA bus provided some of the features of the IBM MicroChannel
1924 bus while maintaining backward compatibility with cards made for
1925 the older ISA bus. The EISA bus saw limited use between 1988 and
1926 1995 when it was made obsolete by the PCI bus.
1927
1928 Say Y here if you are building a kernel for an EISA-based machine.
1929
1930 Otherwise, say N.
1931
1932 source "drivers/eisa/Kconfig"
1933
1934 config TC
1935 bool "TURBOchannel support"
1936 depends on MACH_DECSTATION
1937 help
1938 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1939 processors. Documentation on writing device drivers for TurboChannel
1940 is available at:
1941 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1942
1943 #config ACCESSBUS
1944 # bool "Access.Bus support"
1945 # depends on TC
1946
1947 config MMU
1948 bool
1949 default y
1950
1951 config I8253
1952 bool
1953
1954 config PCSPEAKER
1955 bool
1956
1957 source "drivers/pcmcia/Kconfig"
1958
1959 source "drivers/pci/hotplug/Kconfig"
1960
1961 endmenu
1962
1963 menu "Executable file formats"
1964
1965 source "fs/Kconfig.binfmt"
1966
1967 config TRAD_SIGNALS
1968 bool
1969
1970 config BINFMT_IRIX
1971 bool "Include IRIX binary compatibility"
1972 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1973
1974 config MIPS32_COMPAT
1975 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1976 depends on 64BIT
1977 help
1978 Select this option if you want Linux/MIPS 32-bit binary
1979 compatibility. Since all software available for Linux/MIPS is
1980 currently 32-bit you should say Y here.
1981
1982 config COMPAT
1983 bool
1984 depends on MIPS32_COMPAT
1985 default y
1986
1987 config SYSVIPC_COMPAT
1988 bool
1989 depends on COMPAT && SYSVIPC
1990 default y
1991
1992 config MIPS32_O32
1993 bool "Kernel support for o32 binaries"
1994 depends on MIPS32_COMPAT
1995 help
1996 Select this option if you want to run o32 binaries. These are pure
1997 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1998 existing binaries are in this format.
1999
2000 If unsure, say Y.
2001
2002 config MIPS32_N32
2003 bool "Kernel support for n32 binaries"
2004 depends on MIPS32_COMPAT
2005 help
2006 Select this option if you want to run n32 binaries. These are
2007 64-bit binaries using 32-bit quantities for addressing and certain
2008 data that would normally be 64-bit. They are used in special
2009 cases.
2010
2011 If unsure, say N.
2012
2013 config BINFMT_ELF32
2014 bool
2015 default y if MIPS32_O32 || MIPS32_N32
2016
2017 endmenu
2018
2019 menu "Power management options"
2020
2021 source "kernel/power/Kconfig"
2022
2023 endmenu
2024
2025 source "net/Kconfig"
2026
2027 source "drivers/Kconfig"
2028
2029 source "fs/Kconfig"
2030
2031 source "kernel/Kconfig.instrumentation"
2032
2033 source "arch/mips/Kconfig.debug"
2034
2035 source "security/Kconfig"
2036
2037 source "crypto/Kconfig"
2038
2039 source "lib/Kconfig"