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1config MIPS
2 bool
3 default y
4 # Horrible source of confusion. Die, die, die ...
5 select EMBEDDED
6 select RTC_LIB
7
8mainmenu "Linux/MIPS Kernel Configuration"
9
10menu "Machine selection"
11
12config ZONE_DMA
13 bool
14
15choice
16 prompt "System type"
17 default SGI_IP22
18
19config MACH_ALCHEMY
20 bool "Alchemy processor based machines"
21
22config BASLER_EXCITE
23 bool "Basler eXcite smart camera"
24 select CEVT_R4K
25 select CSRC_R4K
26 select DMA_COHERENT
27 select HW_HAS_PCI
28 select IRQ_CPU
29 select IRQ_CPU_RM7K
30 select IRQ_CPU_RM9K
31 select MIPS_RM9122
32 select SYS_HAS_CPU_RM9000
33 select SYS_SUPPORTS_32BIT_KERNEL
34 select SYS_SUPPORTS_BIG_ENDIAN
35 select SYS_SUPPORTS_KGDB
36 help
37 The eXcite is a smart camera platform manufactured by
38 Basler Vision Technologies AG.
39
40config BASLER_EXCITE_PROTOTYPE
41 bool "Support for pre-release units"
42 depends on BASLER_EXCITE
43 default n
44 help
45 Pre-series (prototype) units are different from later ones in
46 some ways. Select this option if you have one of these. Please
47 note that a kernel built with this option selected will not be
48 able to run on normal units.
49
50config BCM47XX
51 bool "BCM47XX based boards"
52 select CEVT_R4K
53 select CSRC_R4K
54 select DMA_NONCOHERENT
55 select HW_HAS_PCI
56 select IRQ_CPU
57 select SYS_HAS_CPU_MIPS32_R1
58 select SYS_SUPPORTS_32BIT_KERNEL
59 select SYS_SUPPORTS_LITTLE_ENDIAN
60 select SSB
61 select SSB_DRIVER_MIPS
62 select GENERIC_GPIO
63 select SYS_HAS_EARLY_PRINTK
64 select CFE
65 help
66 Support for BCM47XX based boards
67
68config MIPS_COBALT
69 bool "Cobalt Server"
70 select CEVT_R4K
71 select CSRC_R4K
72 select CEVT_GT641XX
73 select DMA_NONCOHERENT
74 select HW_HAS_PCI
75 select I8253
76 select I8259
77 select IRQ_CPU
78 select IRQ_GT641XX
79 select PCI_GT64XXX_PCI0
80 select SYS_HAS_CPU_NEVADA
81 select SYS_HAS_EARLY_PRINTK
82 select SYS_SUPPORTS_32BIT_KERNEL
83 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
84 select SYS_SUPPORTS_LITTLE_ENDIAN
85 select GENERIC_HARDIRQS_NO__DO_IRQ
86
87config MACH_DECSTATION
88 bool "DECstations"
89 select BOOT_ELF32
90 select CEVT_R4K
91 select CSRC_R4K
92 select DMA_NONCOHERENT
93 select NO_IOPORT
94 select IRQ_CPU
95 select SYS_HAS_CPU_R3000
96 select SYS_HAS_CPU_R4X00
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
99 select SYS_SUPPORTS_LITTLE_ENDIAN
100 select SYS_SUPPORTS_128HZ
101 select SYS_SUPPORTS_256HZ
102 select SYS_SUPPORTS_1024HZ
103 help
104 This enables support for DEC's MIPS based workstations. For details
105 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
106 DECstation porting pages on <http://decstation.unix-ag.org/>.
107
108 If you have one of the following DECstation Models you definitely
109 want to choose R4xx0 for the CPU Type:
110
111 DECstation 5000/50
112 DECstation 5000/150
113 DECstation 5000/260
114 DECsystem 5900/260
115
116 otherwise choose R3000.
117
118config MACH_JAZZ
119 bool "Jazz family of machines"
120 select ARC
121 select ARC32
122 select ARCH_MAY_HAVE_PC_FDC
123 select CEVT_R4K
124 select CSRC_R4K
125 select GENERIC_ISA_DMA
126 select IRQ_CPU
127 select I8253
128 select I8259
129 select ISA
130 select PCSPEAKER
131 select SYS_HAS_CPU_R4X00
132 select SYS_SUPPORTS_32BIT_KERNEL
133 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
134 select SYS_SUPPORTS_100HZ
135 select GENERIC_HARDIRQS_NO__DO_IRQ
136 help
137 This a family of machines based on the MIPS R4030 chipset which was
138 used by several vendors to build RISC/os and Windows NT workstations.
139 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
140 Olivetti M700-10 workstations.
141
142config LASAT
143 bool "LASAT Networks platforms"
144 select CEVT_R4K
145 select CSRC_R4K
146 select DMA_NONCOHERENT
147 select SYS_HAS_EARLY_PRINTK
148 select HW_HAS_PCI
149 select IRQ_CPU
150 select PCI_GT64XXX_PCI0
151 select MIPS_NILE4
152 select R5000_CPU_SCACHE
153 select SYS_HAS_CPU_R5000
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
156 select SYS_SUPPORTS_LITTLE_ENDIAN
157 select GENERIC_HARDIRQS_NO__DO_IRQ
158
159config LEMOTE_FULONG
160 bool "Lemote Fulong mini-PC"
161 select ARCH_SPARSEMEM_ENABLE
162 select CEVT_R4K
163 select CSRC_R4K
164 select SYS_HAS_CPU_LOONGSON2
165 select DMA_NONCOHERENT
166 select BOOT_ELF32
167 select BOARD_SCACHE
168 select HAVE_STD_PC_SERIAL_PORT
169 select HW_HAS_PCI
170 select I8259
171 select ISA
172 select IRQ_CPU
173 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_SUPPORTS_64BIT_KERNEL
175 select SYS_SUPPORTS_LITTLE_ENDIAN
176 select SYS_SUPPORTS_HIGHMEM
177 select SYS_HAS_EARLY_PRINTK
178 select GENERIC_HARDIRQS_NO__DO_IRQ
179 select GENERIC_ISA_DMA_SUPPORT_BROKEN
180 select CPU_HAS_WB
181 help
182 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
183 an FPGA northbridge
184
185config MIPS_ATLAS
186 bool "MIPS Atlas board"
187 select BOOT_ELF32
188 select CEVT_R4K
189 select CSRC_R4K
190 select DMA_NONCOHERENT
191 select SYS_HAS_EARLY_PRINTK
192 select IRQ_CPU
193 select HW_HAS_PCI
194 select MIPS_BOARDS_GEN
195 select MIPS_BONITO64
196 select PCI_GT64XXX_PCI0
197 select MIPS_MSC
198 select RM7000_CPU_SCACHE
199 select SWAP_IO_SPACE
200 select SYS_HAS_CPU_MIPS32_R1
201 select SYS_HAS_CPU_MIPS32_R2
202 select SYS_HAS_CPU_MIPS64_R1
203 select SYS_HAS_CPU_NEVADA
204 select SYS_HAS_CPU_RM7000
205 select SYS_SUPPORTS_32BIT_KERNEL
206 select SYS_SUPPORTS_64BIT_KERNEL
207 select SYS_SUPPORTS_BIG_ENDIAN
208 select SYS_SUPPORTS_LITTLE_ENDIAN
209 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
210 select SYS_SUPPORTS_SMARTMIPS
211 select GENERIC_HARDIRQS_NO__DO_IRQ
212 help
213 This enables support for the MIPS Technologies Atlas evaluation
214 board.
215
216config MIPS_MALTA
217 bool "MIPS Malta board"
218 select ARCH_MAY_HAVE_PC_FDC
219 select BOOT_ELF32
220 select CEVT_R4K
221 select CSRC_R4K
222 select DMA_NONCOHERENT
223 select GENERIC_ISA_DMA
224 select IRQ_CPU
225 select HW_HAS_PCI
226 select I8253
227 select I8259
228 select MIPS_BOARDS_GEN
229 select MIPS_BONITO64
230 select MIPS_CPU_SCACHE
231 select PCI_GT64XXX_PCI0
232 select MIPS_MSC
233 select SWAP_IO_SPACE
234 select SYS_HAS_CPU_MIPS32_R1
235 select SYS_HAS_CPU_MIPS32_R2
236 select SYS_HAS_CPU_MIPS64_R1
237 select SYS_HAS_CPU_NEVADA
238 select SYS_HAS_CPU_RM7000
239 select SYS_HAS_EARLY_PRINTK
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_64BIT_KERNEL
242 select SYS_SUPPORTS_BIG_ENDIAN
243 select SYS_SUPPORTS_LITTLE_ENDIAN
244 select SYS_SUPPORTS_MULTITHREADING
245 select SYS_SUPPORTS_SMARTMIPS
246 help
247 This enables support for the MIPS Technologies Malta evaluation
248 board.
249
250config MIPS_SEAD
251 bool "MIPS SEAD board"
252 select CEVT_R4K
253 select CSRC_R4K
254 select IRQ_CPU
255 select DMA_NONCOHERENT
256 select SYS_HAS_EARLY_PRINTK
257 select MIPS_BOARDS_GEN
258 select SYS_HAS_CPU_MIPS32_R1
259 select SYS_HAS_CPU_MIPS32_R2
260 select SYS_HAS_CPU_MIPS64_R1
261 select SYS_SUPPORTS_32BIT_KERNEL
262 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
263 select SYS_SUPPORTS_BIG_ENDIAN
264 select SYS_SUPPORTS_LITTLE_ENDIAN
265 select SYS_SUPPORTS_SMARTMIPS
266 help
267 This enables support for the MIPS Technologies SEAD evaluation
268 board.
269
270config MIPS_SIM
271 bool 'MIPS simulator (MIPSsim)'
272 select CEVT_R4K
273 select CSRC_R4K
274 select DMA_NONCOHERENT
275 select SYS_HAS_EARLY_PRINTK
276 select IRQ_CPU
277 select BOOT_RAW
278 select SYS_HAS_CPU_MIPS32_R1
279 select SYS_HAS_CPU_MIPS32_R2
280 select SYS_HAS_EARLY_PRINTK
281 select SYS_SUPPORTS_32BIT_KERNEL
282 select SYS_SUPPORTS_BIG_ENDIAN
283 select SYS_SUPPORTS_MULTITHREADING
284 select SYS_SUPPORTS_LITTLE_ENDIAN
285 help
286 This option enables support for MIPS Technologies MIPSsim software
287 emulator.
288
289config MARKEINS
290 bool "NEC EMMA2RH Mark-eins"
291 select CEVT_R4K
292 select CSRC_R4K
293 select DMA_NONCOHERENT
294 select HW_HAS_PCI
295 select IRQ_CPU
296 select SWAP_IO_SPACE
297 select SYS_SUPPORTS_32BIT_KERNEL
298 select SYS_SUPPORTS_BIG_ENDIAN
299 select SYS_SUPPORTS_LITTLE_ENDIAN
300 select SYS_HAS_CPU_R5000
301 help
302 This enables support for the R5432-based NEC Mark-eins
303 boards with R5500 CPU.
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 GENERIC_HARDIRQS_NO__DO_IRQ
311
312config PNX8550_JBS
313 bool "Philips PNX8550 based JBS board"
314 select PNX8550
315 select SYS_SUPPORTS_LITTLE_ENDIAN
316
317config PNX8550_STB810
318 bool "Philips PNX8550 based STB810 board"
319 select PNX8550
320 select SYS_SUPPORTS_LITTLE_ENDIAN
321
322config PMC_MSP
323 bool "PMC-Sierra MSP chipsets"
324 depends on EXPERIMENTAL
325 select DMA_NONCOHERENT
326 select SWAP_IO_SPACE
327 select NO_EXCEPT_FILL
328 select BOOT_RAW
329 select SYS_HAS_CPU_MIPS32_R1
330 select SYS_HAS_CPU_MIPS32_R2
331 select SYS_SUPPORTS_32BIT_KERNEL
332 select SYS_SUPPORTS_BIG_ENDIAN
333 select SYS_SUPPORTS_KGDB
334 select IRQ_CPU
335 select SERIAL_8250
336 select SERIAL_8250_CONSOLE
337 help
338 This adds support for the PMC-Sierra family of Multi-Service
339 Processor System-On-A-Chips. These parts include a number
340 of integrated peripherals, interfaces and DSPs in addition to
341 a variety of MIPS cores.
342
343config PMC_YOSEMITE
344 bool "PMC-Sierra Yosemite eval board"
345 select CEVT_R4K
346 select CSRC_R4K
347 select DMA_COHERENT
348 select HW_HAS_PCI
349 select IRQ_CPU
350 select IRQ_CPU_RM7K
351 select IRQ_CPU_RM9K
352 select SWAP_IO_SPACE
353 select SYS_HAS_CPU_RM9000
354 select SYS_HAS_EARLY_PRINTK
355 select SYS_SUPPORTS_32BIT_KERNEL
356 select SYS_SUPPORTS_64BIT_KERNEL
357 select SYS_SUPPORTS_BIG_ENDIAN
358 select SYS_SUPPORTS_HIGHMEM
359 select SYS_SUPPORTS_KGDB
360 select SYS_SUPPORTS_SMP
361 help
362 Yosemite is an evaluation board for the RM9000x2 processor
363 manufactured by PMC-Sierra.
364
365config QEMU
366 bool "Qemu"
367 select CEVT_R4K
368 select CSRC_R4K
369 select DMA_COHERENT
370 select GENERIC_ISA_DMA
371 select HAVE_STD_PC_SERIAL_PORT
372 select I8253
373 select I8259
374 select IRQ_CPU
375 select ISA
376 select PCSPEAKER
377 select SWAP_IO_SPACE
378 select SYS_HAS_CPU_MIPS32_R1
379 select SYS_HAS_EARLY_PRINTK
380 select SYS_SUPPORTS_32BIT_KERNEL
381 select SYS_SUPPORTS_BIG_ENDIAN
382 select SYS_SUPPORTS_LITTLE_ENDIAN
383 select GENERIC_HARDIRQS_NO__DO_IRQ
384 select NR_CPUS_DEFAULT_1
385 select SYS_SUPPORTS_SMP
386 help
387 Qemu is a software emulator which among other architectures also
388 can simulate a MIPS32 4Kc system. This patch adds support for the
389 system architecture that currently is being simulated by Qemu. It
390 will eventually be removed again when Qemu has the capability to
391 simulate actual MIPS hardware platforms. More information on Qemu
392 can be found at http://www.linux-mips.org/wiki/Qemu.
393
394config SGI_IP22
395 bool "SGI IP22 (Indy/Indigo2)"
396 select ARC
397 select ARC32
398 select BOOT_ELF32
399 select CEVT_R4K
400 select CSRC_R4K
401 select DMA_NONCOHERENT
402 select HW_HAS_EISA
403 select I8253
404 select I8259
405 select IP22_CPU_SCACHE
406 select IRQ_CPU
407 select GENERIC_ISA_DMA_SUPPORT_BROKEN
408 select SWAP_IO_SPACE
409 select SYS_HAS_CPU_R4X00
410 select SYS_HAS_CPU_R5000
411 select SYS_HAS_EARLY_PRINTK
412 select SYS_SUPPORTS_32BIT_KERNEL
413 select SYS_SUPPORTS_64BIT_KERNEL
414 select SYS_SUPPORTS_BIG_ENDIAN
415 help
416 This are the SGI Indy, Challenge S and Indigo2, as well as certain
417 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
418 that runs on these, say Y here.
419
420config SGI_IP27
421 bool "SGI IP27 (Origin200/2000)"
422 select ARC
423 select ARC64
424 select BOOT_ELF64
425 select DMA_IP27
426 select SYS_HAS_EARLY_PRINTK
427 select HW_HAS_PCI
428 select NR_CPUS_DEFAULT_64
429 select SYS_HAS_CPU_R10000
430 select SYS_SUPPORTS_64BIT_KERNEL
431 select SYS_SUPPORTS_BIG_ENDIAN
432 select SYS_SUPPORTS_KGDB
433 select SYS_SUPPORTS_NUMA
434 select SYS_SUPPORTS_SMP
435 select GENERIC_HARDIRQS_NO__DO_IRQ
436 help
437 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
438 workstations. To compile a Linux kernel that runs on these, say Y
439 here.
440
441config SGI_IP32
442 bool "SGI IP32 (O2)"
443 select ARC
444 select ARC32
445 select BOOT_ELF32
446 select CEVT_R4K
447 select CSRC_R4K
448 select DMA_NONCOHERENT
449 select HW_HAS_PCI
450 select IRQ_CPU
451 select R5000_CPU_SCACHE
452 select RM7000_CPU_SCACHE
453 select SYS_HAS_CPU_R5000
454 select SYS_HAS_CPU_R10000 if BROKEN
455 select SYS_HAS_CPU_RM7000
456 select SYS_HAS_CPU_NEVADA
457 select SYS_SUPPORTS_64BIT_KERNEL
458 select SYS_SUPPORTS_BIG_ENDIAN
459 help
460 If you want this kernel to run on SGI O2 workstation, say Y here.
461
462config SIBYTE_CRHINE
463 bool "Sibyte BCM91120C-CRhine"
464 depends on EXPERIMENTAL
465 select BOOT_ELF32
466 select DMA_COHERENT
467 select SIBYTE_BCM1120
468 select SWAP_IO_SPACE
469 select SYS_HAS_CPU_SB1
470 select SYS_SUPPORTS_BIG_ENDIAN
471 select SYS_SUPPORTS_LITTLE_ENDIAN
472
473config SIBYTE_CARMEL
474 bool "Sibyte BCM91120x-Carmel"
475 depends on EXPERIMENTAL
476 select BOOT_ELF32
477 select DMA_COHERENT
478 select SIBYTE_BCM1120
479 select SWAP_IO_SPACE
480 select SYS_HAS_CPU_SB1
481 select SYS_SUPPORTS_BIG_ENDIAN
482 select SYS_SUPPORTS_LITTLE_ENDIAN
483
484config SIBYTE_CRHONE
485 bool "Sibyte BCM91125C-CRhone"
486 depends on EXPERIMENTAL
487 select BOOT_ELF32
488 select DMA_COHERENT
489 select SIBYTE_BCM1125
490 select SWAP_IO_SPACE
491 select SYS_HAS_CPU_SB1
492 select SYS_SUPPORTS_BIG_ENDIAN
493 select SYS_SUPPORTS_HIGHMEM
494 select SYS_SUPPORTS_LITTLE_ENDIAN
495
496config SIBYTE_RHONE
497 bool "Sibyte BCM91125E-Rhone"
498 depends on EXPERIMENTAL
499 select BOOT_ELF32
500 select DMA_COHERENT
501 select SIBYTE_BCM1125H
502 select SWAP_IO_SPACE
503 select SYS_HAS_CPU_SB1
504 select SYS_SUPPORTS_BIG_ENDIAN
505 select SYS_SUPPORTS_LITTLE_ENDIAN
506
507config SIBYTE_SWARM
508 bool "Sibyte BCM91250A-SWARM"
509 select BOOT_ELF32
510 select DMA_COHERENT
511 select NR_CPUS_DEFAULT_2
512 select SIBYTE_SB1250
513 select SWAP_IO_SPACE
514 select SYS_HAS_CPU_SB1
515 select SYS_SUPPORTS_BIG_ENDIAN
516 select SYS_SUPPORTS_HIGHMEM
517 select SYS_SUPPORTS_KGDB
518 select SYS_SUPPORTS_LITTLE_ENDIAN
519 select ZONE_DMA32 if 64BIT
520
521config SIBYTE_LITTLESUR
522 bool "Sibyte BCM91250C2-LittleSur"
523 depends on EXPERIMENTAL
524 select BOOT_ELF32
525 select DMA_COHERENT
526 select NR_CPUS_DEFAULT_2
527 select SIBYTE_SB1250
528 select SWAP_IO_SPACE
529 select SYS_HAS_CPU_SB1
530 select SYS_SUPPORTS_BIG_ENDIAN
531 select SYS_SUPPORTS_HIGHMEM
532 select SYS_SUPPORTS_LITTLE_ENDIAN
533
534config SIBYTE_SENTOSA
535 bool "Sibyte BCM91250E-Sentosa"
536 depends on EXPERIMENTAL
537 select BOOT_ELF32
538 select DMA_COHERENT
539 select NR_CPUS_DEFAULT_2
540 select SIBYTE_SB1250
541 select SWAP_IO_SPACE
542 select SYS_HAS_CPU_SB1
543 select SYS_SUPPORTS_BIG_ENDIAN
544 select SYS_SUPPORTS_LITTLE_ENDIAN
545
546config SIBYTE_PTSWARM
547 bool "Sibyte BCM91250PT-PTSWARM"
548 depends on EXPERIMENTAL
549 select BOOT_ELF32
550 select DMA_COHERENT
551 select NR_CPUS_DEFAULT_2
552 select SIBYTE_SB1250
553 select SWAP_IO_SPACE
554 select SYS_HAS_CPU_SB1
555 select SYS_SUPPORTS_BIG_ENDIAN
556 select SYS_SUPPORTS_HIGHMEM
557 select SYS_SUPPORTS_LITTLE_ENDIAN
558
559config SIBYTE_BIGSUR
560 bool "Sibyte BCM91480B-BigSur"
561 select BOOT_ELF32
562 select DMA_COHERENT
563 select NR_CPUS_DEFAULT_4
564 select SIBYTE_BCM1x80
565 select SWAP_IO_SPACE
566 select SYS_HAS_CPU_SB1
567 select SYS_SUPPORTS_BIG_ENDIAN
568 select SYS_SUPPORTS_HIGHMEM
569 select SYS_SUPPORTS_LITTLE_ENDIAN
570 select ZONE_DMA32 if 64BIT
571
572config SNI_RM
573 bool "SNI RM200/300/400"
574 select ARC if CPU_LITTLE_ENDIAN
575 select ARC32 if CPU_LITTLE_ENDIAN
576 select ARCH_MAY_HAVE_PC_FDC
577 select BOOT_ELF32
578 select CEVT_R4K
579 select CSRC_R4K
580 select DMA_NONCOHERENT
581 select GENERIC_ISA_DMA
582 select HW_HAS_EISA
583 select HW_HAS_PCI
584 select IRQ_CPU
585 select I8253
586 select I8259
587 select ISA
588 select PCSPEAKER
589 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
590 select SYS_HAS_CPU_R4X00
591 select SYS_HAS_CPU_R5000
592 select SYS_HAS_CPU_R10000
593 select R5000_CPU_SCACHE
594 select SYS_HAS_EARLY_PRINTK
595 select SYS_SUPPORTS_32BIT_KERNEL
596 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
597 select SYS_SUPPORTS_BIG_ENDIAN
598 select SYS_SUPPORTS_HIGHMEM
599 select SYS_SUPPORTS_LITTLE_ENDIAN
600 help
601 The SNI RM200/300/400 are MIPS-based machines manufactured by
602 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
603 Technology and now in turn merged with Fujitsu. Say Y here to
604 support this machine type.
605
606config TOSHIBA_JMR3927
607 bool "Toshiba JMR-TX3927 board"
608 select CEVT_TXX9
609 select DMA_NONCOHERENT
610 select HW_HAS_PCI
611 select MIPS_TX3927
612 select IRQ_TXX9
613 select SWAP_IO_SPACE
614 select SYS_HAS_CPU_TX39XX
615 select SYS_SUPPORTS_32BIT_KERNEL
616 select SYS_SUPPORTS_LITTLE_ENDIAN
617 select SYS_SUPPORTS_BIG_ENDIAN
618 select GENERIC_HARDIRQS_NO__DO_IRQ
619
620config TOSHIBA_RBTX4927
621 bool "Toshiba RBTX49[23]7 board"
622 select CEVT_R4K
623 select CSRC_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 I8259 if TOSHIBA_FPCIB0
631 select SWAP_IO_SPACE
632 select SYS_HAS_CPU_TX49XX
633 select SYS_SUPPORTS_32BIT_KERNEL
634 select SYS_SUPPORTS_64BIT_KERNEL
635 select SYS_SUPPORTS_LITTLE_ENDIAN
636 select SYS_SUPPORTS_BIG_ENDIAN
637 select SYS_SUPPORTS_KGDB
638 select GENERIC_HARDIRQS_NO__DO_IRQ
639 help
640 This Toshiba board is based on the TX4927 processor. Say Y here to
641 support this machine type
642
643config TOSHIBA_RBTX4938
644 bool "Toshiba RBTX4938 board"
645 select CEVT_R4K
646 select CSRC_R4K
647 select CEVT_TXX9
648 select DMA_NONCOHERENT
649 select HAS_TXX9_SERIAL
650 select HW_HAS_PCI
651 select IRQ_CPU
652 select IRQ_TXX9
653 select SWAP_IO_SPACE
654 select SYS_HAS_CPU_TX49XX
655 select SYS_SUPPORTS_32BIT_KERNEL
656 select SYS_SUPPORTS_LITTLE_ENDIAN
657 select SYS_SUPPORTS_BIG_ENDIAN
658 select SYS_SUPPORTS_KGDB
659 select GENERIC_HARDIRQS_NO__DO_IRQ
660 select GENERIC_GPIO
661 help
662 This Toshiba board is based on the TX4938 processor. Say Y here to
663 support this machine type
664
665config WR_PPMC
666 bool "Wind River PPMC board"
667 select CEVT_R4K
668 select CSRC_R4K
669 select IRQ_CPU
670 select BOOT_ELF32
671 select DMA_NONCOHERENT
672 select HW_HAS_PCI
673 select PCI_GT64XXX_PCI0
674 select SWAP_IO_SPACE
675 select SYS_HAS_CPU_MIPS32_R1
676 select SYS_HAS_CPU_MIPS32_R2
677 select SYS_HAS_CPU_MIPS64_R1
678 select SYS_HAS_CPU_NEVADA
679 select SYS_HAS_CPU_RM7000
680 select SYS_SUPPORTS_32BIT_KERNEL
681 select SYS_SUPPORTS_64BIT_KERNEL
682 select SYS_SUPPORTS_BIG_ENDIAN
683 select SYS_SUPPORTS_LITTLE_ENDIAN
684 help
685 This enables support for the Wind River MIPS32 4KC PPMC evaluation
686 board, which is based on GT64120 bridge chip.
687
688endchoice
689
690source "arch/mips/au1000/Kconfig"
691source "arch/mips/jazz/Kconfig"
692source "arch/mips/lasat/Kconfig"
693source "arch/mips/pmc-sierra/Kconfig"
694source "arch/mips/sgi-ip27/Kconfig"
695source "arch/mips/sibyte/Kconfig"
696source "arch/mips/tx4927/Kconfig"
697source "arch/mips/tx4938/Kconfig"
698source "arch/mips/vr41xx/Kconfig"
699
700endmenu
701
702config RWSEM_GENERIC_SPINLOCK
703 bool
704 default y
705
706config RWSEM_XCHGADD_ALGORITHM
707 bool
708
709config ARCH_HAS_ILOG2_U32
710 bool
711 default n
712
713config ARCH_HAS_ILOG2_U64
714 bool
715 default n
716
717config ARCH_SUPPORTS_OPROFILE
718 bool
719 default y if !MIPS_MT_SMTC
720
721config GENERIC_FIND_NEXT_BIT
722 bool
723 default y
724
725config GENERIC_HWEIGHT
726 bool
727 default y
728
729config GENERIC_CALIBRATE_DELAY
730 bool
731 default y
732
733config GENERIC_CLOCKEVENTS
734 bool
735 default y
736
737config GENERIC_TIME
738 bool
739 default y
740
741config GENERIC_CMOS_UPDATE
742 bool
743 default y
744
745config SCHED_NO_NO_OMIT_FRAME_POINTER
746 bool
747 default y
748
749config GENERIC_HARDIRQS_NO__DO_IRQ
750 bool
751 default n
752
753#
754# Select some configuration options automatically based on user selections.
755#
756config ARC
757 bool
758
759config ARCH_MAY_HAVE_PC_FDC
760 bool
761
762config BOOT_RAW
763 bool
764
765config CEVT_BCM1480
766 bool
767
768config CEVT_GT641XX
769 bool
770
771config CEVT_R4K
772 bool
773
774config CEVT_SB1250
775 bool
776
777config CEVT_TXX9
778 bool
779
780config CSRC_BCM1480
781 bool
782
783config CSRC_R4K
784 bool
785
786config CSRC_SB1250
787 bool
788
789config CFE
790 bool
791
792config DMA_COHERENT
793 bool
794
795config DMA_IP27
796 bool
797
798config DMA_IP32
799 bool
800 select DMA_NEED_PCI_MAP_STATE
801
802config DMA_NONCOHERENT
803 bool
804 select DMA_NEED_PCI_MAP_STATE
805
806config DMA_NEED_PCI_MAP_STATE
807 bool
808
809config EARLY_PRINTK
810 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
811 depends on SYS_HAS_EARLY_PRINTK
812 default y
813 help
814 This option enables special console drivers which allow the kernel
815 to print messages very early in the bootup process.
816
817 This is useful for kernel debugging when your machine crashes very
818 early before the console code is initialized. For normal operation,
819 it is not recommended because it looks ugly on some machines and
820 doesn't cooperate with an X server. You should normally say N here,
821 unless you want to debug such a crash.
822
823config SYS_HAS_EARLY_PRINTK
824 bool
825
826config HOTPLUG_CPU
827 bool
828 default n
829
830config I8259
831 bool
832
833config MIPS_BONITO64
834 bool
835
836config MIPS_MSC
837 bool
838
839config MIPS_NILE4
840 bool
841
842config MIPS_DISABLE_OBSOLETE_IDE
843 bool
844
845config NO_IOPORT
846 def_bool n
847
848config GENERIC_ISA_DMA
849 bool
850 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
851
852config GENERIC_ISA_DMA_SUPPORT_BROKEN
853 bool
854 select GENERIC_ISA_DMA
855
856config GENERIC_GPIO
857 bool
858
859#
860# Endianess selection. Sufficiently obscure so many users don't know what to
861# answer,so we try hard to limit the available choices. Also the use of a
862# choice statement should be more obvious to the user.
863#
864choice
865 prompt "Endianess selection"
866 help
867 Some MIPS machines can be configured for either little or big endian
868 byte order. These modes require different kernels and a different
869 Linux distribution. In general there is one preferred byteorder for a
870 particular system but some systems are just as commonly used in the
871 one or the other endianness.
872
873config CPU_BIG_ENDIAN
874 bool "Big endian"
875 depends on SYS_SUPPORTS_BIG_ENDIAN
876
877config CPU_LITTLE_ENDIAN
878 bool "Little endian"
879 depends on SYS_SUPPORTS_LITTLE_ENDIAN
880 help
881
882endchoice
883
884config SYS_SUPPORTS_APM_EMULATION
885 bool
886
887config SYS_SUPPORTS_BIG_ENDIAN
888 bool
889
890config SYS_SUPPORTS_LITTLE_ENDIAN
891 bool
892
893config IRQ_CPU
894 bool
895
896config IRQ_CPU_RM7K
897 bool
898
899config IRQ_CPU_RM9K
900 bool
901
902config IRQ_MSP_SLP
903 bool
904
905config IRQ_MSP_CIC
906 bool
907
908config IRQ_TXX9
909 bool
910
911config IRQ_GT641XX
912 bool
913
914config MIPS_BOARDS_GEN
915 bool
916
917config PCI_GT64XXX_PCI0
918 bool
919
920config NO_EXCEPT_FILL
921 bool
922
923config MIPS_TX3927
924 bool
925 select HAS_TXX9_SERIAL
926
927config MIPS_RM9122
928 bool
929 select SERIAL_RM9000
930
931config PNX8550
932 bool
933 select SOC_PNX8550
934
935config SOC_PNX8550
936 bool
937 select DMA_NONCOHERENT
938 select HW_HAS_PCI
939 select SYS_HAS_CPU_MIPS32_R1
940 select SYS_HAS_EARLY_PRINTK
941 select SYS_SUPPORTS_32BIT_KERNEL
942 select GENERIC_HARDIRQS_NO__DO_IRQ
943 select SYS_SUPPORTS_KGDB
944 select GENERIC_GPIO
945
946config SWAP_IO_SPACE
947 bool
948
949config EMMA2RH
950 bool
951 depends on MARKEINS
952 default y
953
954config SERIAL_RM9000
955 bool
956
957config ARC32
958 bool
959
960config BOOT_ELF32
961 bool
962
963config MIPS_L1_CACHE_SHIFT
964 int
965 default "4" if MACH_DECSTATION
966 default "7" if SGI_IP27 || SNI_RM
967 default "4" if PMC_MSP4200_EVAL
968 default "5"
969
970config HAVE_STD_PC_SERIAL_PORT
971 bool
972
973config ARC_CONSOLE
974 bool "ARC console support"
975 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
976
977config ARC_MEMORY
978 bool
979 depends on MACH_JAZZ || SNI_RM || SGI_IP32
980 default y
981
982config ARC_PROMLIB
983 bool
984 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
985 default y
986
987config ARC64
988 bool
989
990config BOOT_ELF64
991 bool
992
993menu "CPU selection"
994
995source "kernel/time/Kconfig"
996
997choice
998 prompt "CPU type"
999 default CPU_R4X00
1000
1001config CPU_LOONGSON2
1002 bool "Loongson 2"
1003 depends on SYS_HAS_CPU_LOONGSON2
1004 select CPU_SUPPORTS_32BIT_KERNEL
1005 select CPU_SUPPORTS_64BIT_KERNEL
1006 select CPU_SUPPORTS_HIGHMEM
1007 help
1008 The Loongson 2E processor implements the MIPS III instruction set
1009 with many extensions.
1010
1011config CPU_MIPS32_R1
1012 bool "MIPS32 Release 1"
1013 depends on SYS_HAS_CPU_MIPS32_R1
1014 select CPU_HAS_LLSC
1015 select CPU_HAS_PREFETCH
1016 select CPU_SUPPORTS_32BIT_KERNEL
1017 select CPU_SUPPORTS_HIGHMEM
1018 help
1019 Choose this option to build a kernel for release 1 or later of the
1020 MIPS32 architecture. Most modern embedded systems with a 32-bit
1021 MIPS processor are based on a MIPS32 processor. If you know the
1022 specific type of processor in your system, choose those that one
1023 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1024 Release 2 of the MIPS32 architecture is available since several
1025 years so chances are you even have a MIPS32 Release 2 processor
1026 in which case you should choose CPU_MIPS32_R2 instead for better
1027 performance.
1028
1029config CPU_MIPS32_R2
1030 bool "MIPS32 Release 2"
1031 depends on SYS_HAS_CPU_MIPS32_R2
1032 select CPU_HAS_LLSC
1033 select CPU_HAS_PREFETCH
1034 select CPU_SUPPORTS_32BIT_KERNEL
1035 select CPU_SUPPORTS_HIGHMEM
1036 help
1037 Choose this option to build a kernel for release 2 or later of the
1038 MIPS32 architecture. Most modern embedded systems with a 32-bit
1039 MIPS processor are based on a MIPS32 processor. If you know the
1040 specific type of processor in your system, choose those that one
1041 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1042
1043config CPU_MIPS64_R1
1044 bool "MIPS64 Release 1"
1045 depends on SYS_HAS_CPU_MIPS64_R1
1046 select CPU_HAS_LLSC
1047 select CPU_HAS_PREFETCH
1048 select CPU_SUPPORTS_32BIT_KERNEL
1049 select CPU_SUPPORTS_64BIT_KERNEL
1050 select CPU_SUPPORTS_HIGHMEM
1051 help
1052 Choose this option to build a kernel for release 1 or later of the
1053 MIPS64 architecture. Many modern embedded systems with a 64-bit
1054 MIPS processor are based on a MIPS64 processor. If you know the
1055 specific type of processor in your system, choose those that one
1056 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1057 Release 2 of the MIPS64 architecture is available since several
1058 years so chances are you even have a MIPS64 Release 2 processor
1059 in which case you should choose CPU_MIPS64_R2 instead for better
1060 performance.
1061
1062config CPU_MIPS64_R2
1063 bool "MIPS64 Release 2"
1064 depends on SYS_HAS_CPU_MIPS64_R2
1065 select CPU_HAS_LLSC
1066 select CPU_HAS_PREFETCH
1067 select CPU_SUPPORTS_32BIT_KERNEL
1068 select CPU_SUPPORTS_64BIT_KERNEL
1069 select CPU_SUPPORTS_HIGHMEM
1070 help
1071 Choose this option to build a kernel for release 2 or later of the
1072 MIPS64 architecture. Many modern embedded systems with a 64-bit
1073 MIPS processor are based on a MIPS64 processor. If you know the
1074 specific type of processor in your system, choose those that one
1075 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1076
1077config CPU_R3000
1078 bool "R3000"
1079 depends on SYS_HAS_CPU_R3000
1080 select CPU_HAS_WB
1081 select CPU_SUPPORTS_32BIT_KERNEL
1082 select CPU_SUPPORTS_HIGHMEM
1083 help
1084 Please make sure to pick the right CPU type. Linux/MIPS is not
1085 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1086 *not* work on R4000 machines and vice versa. However, since most
1087 of the supported machines have an R4000 (or similar) CPU, R4x00
1088 might be a safe bet. If the resulting kernel does not work,
1089 try to recompile with R3000.
1090
1091config CPU_TX39XX
1092 bool "R39XX"
1093 depends on SYS_HAS_CPU_TX39XX
1094 select CPU_SUPPORTS_32BIT_KERNEL
1095
1096config CPU_VR41XX
1097 bool "R41xx"
1098 depends on SYS_HAS_CPU_VR41XX
1099 select CPU_SUPPORTS_32BIT_KERNEL
1100 select CPU_SUPPORTS_64BIT_KERNEL
1101 help
1102 The options selects support for the NEC VR4100 series of processors.
1103 Only choose this option if you have one of these processors as a
1104 kernel built with this option will not run on any other type of
1105 processor or vice versa.
1106
1107config CPU_R4300
1108 bool "R4300"
1109 depends on SYS_HAS_CPU_R4300
1110 select CPU_HAS_LLSC
1111 select CPU_SUPPORTS_32BIT_KERNEL
1112 select CPU_SUPPORTS_64BIT_KERNEL
1113 help
1114 MIPS Technologies R4300-series processors.
1115
1116config CPU_R4X00
1117 bool "R4x00"
1118 depends on SYS_HAS_CPU_R4X00
1119 select CPU_HAS_LLSC
1120 select CPU_SUPPORTS_32BIT_KERNEL
1121 select CPU_SUPPORTS_64BIT_KERNEL
1122 help
1123 MIPS Technologies R4000-series processors other than 4300, including
1124 the R4000, R4400, R4600, and 4700.
1125
1126config CPU_TX49XX
1127 bool "R49XX"
1128 depends on SYS_HAS_CPU_TX49XX
1129 select CPU_HAS_LLSC
1130 select CPU_HAS_PREFETCH
1131 select CPU_SUPPORTS_32BIT_KERNEL
1132 select CPU_SUPPORTS_64BIT_KERNEL
1133
1134config CPU_R5000
1135 bool "R5000"
1136 depends on SYS_HAS_CPU_R5000
1137 select CPU_HAS_LLSC
1138 select CPU_SUPPORTS_32BIT_KERNEL
1139 select CPU_SUPPORTS_64BIT_KERNEL
1140 help
1141 MIPS Technologies R5000-series processors other than the Nevada.
1142
1143config CPU_R5432
1144 bool "R5432"
1145 depends on SYS_HAS_CPU_R5432
1146 select CPU_HAS_LLSC
1147 select CPU_SUPPORTS_32BIT_KERNEL
1148 select CPU_SUPPORTS_64BIT_KERNEL
1149
1150config CPU_R6000
1151 bool "R6000"
1152 depends on EXPERIMENTAL
1153 select CPU_HAS_LLSC
1154 depends on SYS_HAS_CPU_R6000
1155 select CPU_SUPPORTS_32BIT_KERNEL
1156 help
1157 MIPS Technologies R6000 and R6000A series processors. Note these
1158 processors are extremely rare and the support for them is incomplete.
1159
1160config CPU_NEVADA
1161 bool "RM52xx"
1162 depends on SYS_HAS_CPU_NEVADA
1163 select CPU_HAS_LLSC
1164 select CPU_SUPPORTS_32BIT_KERNEL
1165 select CPU_SUPPORTS_64BIT_KERNEL
1166 help
1167 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1168
1169config CPU_R8000
1170 bool "R8000"
1171 depends on EXPERIMENTAL
1172 depends on SYS_HAS_CPU_R8000
1173 select CPU_HAS_LLSC
1174 select CPU_HAS_PREFETCH
1175 select CPU_SUPPORTS_64BIT_KERNEL
1176 help
1177 MIPS Technologies R8000 processors. Note these processors are
1178 uncommon and the support for them is incomplete.
1179
1180config CPU_R10000
1181 bool "R10000"
1182 depends on SYS_HAS_CPU_R10000
1183 select CPU_HAS_LLSC
1184 select CPU_HAS_PREFETCH
1185 select CPU_SUPPORTS_32BIT_KERNEL
1186 select CPU_SUPPORTS_64BIT_KERNEL
1187 select CPU_SUPPORTS_HIGHMEM
1188 help
1189 MIPS Technologies R10000-series processors.
1190
1191config CPU_RM7000
1192 bool "RM7000"
1193 depends on SYS_HAS_CPU_RM7000
1194 select CPU_HAS_LLSC
1195 select CPU_HAS_PREFETCH
1196 select CPU_SUPPORTS_32BIT_KERNEL
1197 select CPU_SUPPORTS_64BIT_KERNEL
1198 select CPU_SUPPORTS_HIGHMEM
1199
1200config CPU_RM9000
1201 bool "RM9000"
1202 depends on SYS_HAS_CPU_RM9000
1203 select CPU_HAS_LLSC
1204 select CPU_HAS_PREFETCH
1205 select CPU_SUPPORTS_32BIT_KERNEL
1206 select CPU_SUPPORTS_64BIT_KERNEL
1207 select CPU_SUPPORTS_HIGHMEM
1208 select WEAK_ORDERING
1209
1210config CPU_SB1
1211 bool "SB1"
1212 depends on SYS_HAS_CPU_SB1
1213 select CPU_HAS_LLSC
1214 select CPU_SUPPORTS_32BIT_KERNEL
1215 select CPU_SUPPORTS_64BIT_KERNEL
1216 select CPU_SUPPORTS_HIGHMEM
1217 select WEAK_ORDERING
1218
1219endchoice
1220
1221config SYS_HAS_CPU_LOONGSON2
1222 bool
1223
1224config SYS_HAS_CPU_MIPS32_R1
1225 bool
1226
1227config SYS_HAS_CPU_MIPS32_R2
1228 bool
1229
1230config SYS_HAS_CPU_MIPS64_R1
1231 bool
1232
1233config SYS_HAS_CPU_MIPS64_R2
1234 bool
1235
1236config SYS_HAS_CPU_R3000
1237 bool
1238
1239config SYS_HAS_CPU_TX39XX
1240 bool
1241
1242config SYS_HAS_CPU_VR41XX
1243 bool
1244
1245config SYS_HAS_CPU_R4300
1246 bool
1247
1248config SYS_HAS_CPU_R4X00
1249 bool
1250
1251config SYS_HAS_CPU_TX49XX
1252 bool
1253
1254config SYS_HAS_CPU_R5000
1255 bool
1256
1257config SYS_HAS_CPU_R5432
1258 bool
1259
1260config SYS_HAS_CPU_R6000
1261 bool
1262
1263config SYS_HAS_CPU_NEVADA
1264 bool
1265
1266config SYS_HAS_CPU_R8000
1267 bool
1268
1269config SYS_HAS_CPU_R10000
1270 bool
1271
1272config SYS_HAS_CPU_RM7000
1273 bool
1274
1275config SYS_HAS_CPU_RM9000
1276 bool
1277
1278config SYS_HAS_CPU_SB1
1279 bool
1280
1281#
1282# CPU may reorder R->R, R->W, W->R, W->W
1283# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1284#
1285config WEAK_ORDERING
1286 bool
1287
1288#
1289# CPU may reorder reads and writes beyond LL/SC
1290# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1291#
1292config WEAK_REORDERING_BEYOND_LLSC
1293 bool
1294endmenu
1295
1296#
1297# These two indicate any level of the MIPS32 and MIPS64 architecture
1298#
1299config CPU_MIPS32
1300 bool
1301 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1302
1303config CPU_MIPS64
1304 bool
1305 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1306
1307#
1308# These two indicate the revision of the architecture, either Release 1 or Release 2
1309#
1310config CPU_MIPSR1
1311 bool
1312 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1313
1314config CPU_MIPSR2
1315 bool
1316 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1317
1318config SYS_SUPPORTS_32BIT_KERNEL
1319 bool
1320config SYS_SUPPORTS_64BIT_KERNEL
1321 bool
1322config CPU_SUPPORTS_32BIT_KERNEL
1323 bool
1324config CPU_SUPPORTS_64BIT_KERNEL
1325 bool
1326
1327menu "Kernel type"
1328
1329choice
1330
1331 prompt "Kernel code model"
1332 help
1333 You should only select this option if you have a workload that
1334 actually benefits from 64-bit processing or if your machine has
1335 large memory. You will only be presented a single option in this
1336 menu if your system does not support both 32-bit and 64-bit kernels.
1337
1338config 32BIT
1339 bool "32-bit kernel"
1340 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1341 select TRAD_SIGNALS
1342 help
1343 Select this option if you want to build a 32-bit kernel.
1344config 64BIT
1345 bool "64-bit kernel"
1346 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1347 help
1348 Select this option if you want to build a 64-bit kernel.
1349
1350endchoice
1351
1352choice
1353 prompt "Kernel page size"
1354 default PAGE_SIZE_4KB
1355
1356config PAGE_SIZE_4KB
1357 bool "4kB"
1358 help
1359 This option select the standard 4kB Linux page size. On some
1360 R3000-family processors this is the only available page size. Using
1361 4kB page size will minimize memory consumption and is therefore
1362 recommended for low memory systems.
1363
1364config PAGE_SIZE_8KB
1365 bool "8kB"
1366 depends on EXPERIMENTAL && CPU_R8000
1367 help
1368 Using 8kB page size will result in higher performance kernel at
1369 the price of higher memory consumption. This option is available
1370 only on the R8000 processor. Not that at the time of this writing
1371 this option is still high experimental; there are also issues with
1372 compatibility of user applications.
1373
1374config PAGE_SIZE_16KB
1375 bool "16kB"
1376 depends on !CPU_R3000 && !CPU_TX39XX
1377 help
1378 Using 16kB page size will result in higher performance kernel at
1379 the price of higher memory consumption. This option is available on
1380 all non-R3000 family processors. Note that you will need a suitable
1381 Linux distribution to support this.
1382
1383config PAGE_SIZE_64KB
1384 bool "64kB"
1385 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1386 help
1387 Using 64kB page size will result in higher performance kernel at
1388 the price of higher memory consumption. This option is available on
1389 all non-R3000 family processor. Not that at the time of this
1390 writing this option is still high experimental.
1391
1392endchoice
1393
1394config BOARD_SCACHE
1395 bool
1396
1397config IP22_CPU_SCACHE
1398 bool
1399 select BOARD_SCACHE
1400
1401#
1402# Support for a MIPS32 / MIPS64 style S-caches
1403#
1404config MIPS_CPU_SCACHE
1405 bool
1406 select BOARD_SCACHE
1407
1408config R5000_CPU_SCACHE
1409 bool
1410 select BOARD_SCACHE
1411
1412config RM7000_CPU_SCACHE
1413 bool
1414 select BOARD_SCACHE
1415
1416config SIBYTE_DMA_PAGEOPS
1417 bool "Use DMA to clear/copy pages"
1418 depends on CPU_SB1
1419 help
1420 Instead of using the CPU to zero and copy pages, use a Data Mover
1421 channel. These DMA channels are otherwise unused by the standard
1422 SiByte Linux port. Seems to give a small performance benefit.
1423
1424config CPU_HAS_PREFETCH
1425 bool
1426
1427choice
1428 prompt "MIPS MT options"
1429
1430config MIPS_MT_DISABLED
1431 bool "Disable multithreading support."
1432 help
1433 Use this option if your workload can't take advantage of
1434 MIPS hardware multithreading support. On systems that don't have
1435 the option of an MT-enabled processor this option will be the only
1436 option in this menu.
1437
1438config MIPS_MT_SMP
1439 bool "Use 1 TC on each available VPE for SMP"
1440 depends on SYS_SUPPORTS_MULTITHREADING
1441 select CPU_MIPSR2_IRQ_VI
1442 select CPU_MIPSR2_IRQ_EI
1443 select MIPS_MT
1444 select NR_CPUS_DEFAULT_2
1445 select SMP
1446 select SYS_SUPPORTS_SMP
1447 help
1448 This is a kernel model which is also known a VSMP or lately
1449 has been marketesed into SMVP.
1450
1451config MIPS_MT_SMTC
1452 bool "SMTC: Use all TCs on all VPEs for SMP"
1453 depends on CPU_MIPS32_R2
1454 #depends on CPU_MIPS64_R2 # once there is hardware ...
1455 depends on SYS_SUPPORTS_MULTITHREADING
1456 select GENERIC_CLOCKEVENTS_BROADCAST
1457 select CPU_MIPSR2_IRQ_VI
1458 select CPU_MIPSR2_IRQ_EI
1459 select MIPS_MT
1460 select NR_CPUS_DEFAULT_8
1461 select SMP
1462 select SYS_SUPPORTS_SMP
1463 help
1464 This is a kernel model which is known a SMTC or lately has been
1465 marketesed into SMVP.
1466
1467endchoice
1468
1469config MIPS_MT
1470 bool
1471
1472config SYS_SUPPORTS_MULTITHREADING
1473 bool
1474
1475config MIPS_MT_FPAFF
1476 bool "Dynamic FPU affinity for FP-intensive threads"
1477 default y
1478 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1479
1480config MIPS_VPE_LOADER
1481 bool "VPE loader support."
1482 depends on SYS_SUPPORTS_MULTITHREADING
1483 select CPU_MIPSR2_IRQ_VI
1484 select CPU_MIPSR2_IRQ_EI
1485 select MIPS_MT
1486 help
1487 Includes a loader for loading an elf relocatable object
1488 onto another VPE and running it.
1489
1490config MIPS_MT_SMTC_INSTANT_REPLAY
1491 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1492 depends on MIPS_MT_SMTC && !PREEMPT
1493 default y
1494 help
1495 SMTC pseudo-interrupts between TCs are deferred and queued
1496 if the target TC is interrupt-inhibited (IXMT). In the first
1497 SMTC prototypes, these queued IPIs were serviced on return
1498 to user mode, or on entry into the kernel idle loop. The
1499 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1500 processing, which adds runtime overhead (hence the option to turn
1501 it off), but ensures that IPIs are handled promptly even under
1502 heavy I/O interrupt load.
1503
1504config MIPS_MT_SMTC_IM_BACKSTOP
1505 bool "Use per-TC register bits as backstop for inhibited IM bits"
1506 depends on MIPS_MT_SMTC
1507 default y
1508 help
1509 To support multiple TC microthreads acting as "CPUs" within
1510 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1511 during interrupt handling. To support legacy drivers and interrupt
1512 controller management code, SMTC has a "backstop" to track and
1513 if necessary restore the interrupt mask. This has some performance
1514 impact on interrupt service overhead. Disable it only if you know
1515 what you are doing.
1516
1517config MIPS_MT_SMTC_IRQAFF
1518 bool "Support IRQ affinity API"
1519 depends on MIPS_MT_SMTC
1520 default n
1521 help
1522 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1523 for SMTC Linux kernel. Requires platform support, of which
1524 an example can be found in the MIPS kernel i8259 and Malta
1525 platform code. It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
1526 be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
1527 interrupt dispatch, and should be used only if you know what
1528 you are doing.
1529
1530config MIPS_VPE_LOADER_TOM
1531 bool "Load VPE program into memory hidden from linux"
1532 depends on MIPS_VPE_LOADER
1533 default y
1534 help
1535 The loader can use memory that is present but has been hidden from
1536 Linux using the kernel command line option "mem=xxMB". It's up to
1537 you to ensure the amount you put in the option and the space your
1538 program requires is less or equal to the amount physically present.
1539
1540# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1541config MIPS_VPE_APSP_API
1542 bool "Enable support for AP/SP API (RTLX)"
1543 depends on MIPS_VPE_LOADER
1544 help
1545
1546config MIPS_APSP_KSPD
1547 bool "Enable KSPD"
1548 depends on MIPS_VPE_APSP_API
1549 default y
1550 help
1551 KSPD is a kernel daemon that accepts syscall requests from the SP
1552 side, actions them and returns the results. It also handles the
1553 "exit" syscall notifying other kernel modules the SP program is
1554 exiting. You probably want to say yes here.
1555
1556config SB1_PASS_1_WORKAROUNDS
1557 bool
1558 depends on CPU_SB1_PASS_1
1559 default y
1560
1561config SB1_PASS_2_WORKAROUNDS
1562 bool
1563 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1564 default y
1565
1566config SB1_PASS_2_1_WORKAROUNDS
1567 bool
1568 depends on CPU_SB1 && CPU_SB1_PASS_2
1569 default y
1570
1571config 64BIT_PHYS_ADDR
1572 bool
1573
1574config CPU_HAS_LLSC
1575 bool
1576
1577config CPU_HAS_SMARTMIPS
1578 depends on SYS_SUPPORTS_SMARTMIPS
1579 bool "Support for the SmartMIPS ASE"
1580 help
1581 SmartMIPS is a extension of the MIPS32 architecture aimed at
1582 increased security at both hardware and software level for
1583 smartcards. Enabling this option will allow proper use of the
1584 SmartMIPS instructions by Linux applications. However a kernel with
1585 this option will not work on a MIPS core without SmartMIPS core. If
1586 you don't know you probably don't have SmartMIPS and should say N
1587 here.
1588
1589config CPU_HAS_WB
1590 bool
1591
1592config 64BIT_CONTEXT
1593 bool "Save 64bit integer registers"
1594 depends on 32BIT && CPU_LOONGSON2
1595 help
1596 Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
1597 registers can still be accessed as 64bit, mainly for multimedia
1598 instructions. We must have all 64bit save/restored to make sure
1599 those instructions to get correct result.
1600
1601#
1602# Vectored interrupt mode is an R2 feature
1603#
1604config CPU_MIPSR2_IRQ_VI
1605 bool
1606
1607#
1608# Extended interrupt mode is an R2 feature
1609#
1610config CPU_MIPSR2_IRQ_EI
1611 bool
1612
1613config CPU_HAS_SYNC
1614 bool
1615 depends on !CPU_R3000
1616 default y
1617
1618config GENERIC_CLOCKEVENTS_BROADCAST
1619 bool
1620
1621#
1622# Use the generic interrupt handling code in kernel/irq/:
1623#
1624config GENERIC_HARDIRQS
1625 bool
1626 default y
1627
1628config GENERIC_IRQ_PROBE
1629 bool
1630 default y
1631
1632config IRQ_PER_CPU
1633 bool
1634
1635#
1636# - Highmem only makes sense for the 32-bit kernel.
1637# - The current highmem code will only work properly on physically indexed
1638# caches such as R3000, SB1, R7000 or those that look like they're virtually
1639# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1640# moment we protect the user and offer the highmem option only on machines
1641# where it's known to be safe. This will not offer highmem on a few systems
1642# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1643# indexed CPUs but we're playing safe.
1644# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1645# know they might have memory configurations that could make use of highmem
1646# support.
1647#
1648config HIGHMEM
1649 bool "High Memory Support"
1650 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1651
1652config CPU_SUPPORTS_HIGHMEM
1653 bool
1654
1655config SYS_SUPPORTS_HIGHMEM
1656 bool
1657
1658config SYS_SUPPORTS_SMARTMIPS
1659 bool
1660
1661config ARCH_FLATMEM_ENABLE
1662 def_bool y
1663 depends on !NUMA
1664
1665config ARCH_DISCONTIGMEM_ENABLE
1666 bool
1667 default y if SGI_IP27
1668 help
1669 Say Y to support efficient handling of discontiguous physical memory,
1670 for architectures which are either NUMA (Non-Uniform Memory Access)
1671 or have huge holes in the physical address space for other reasons.
1672 See <file:Documentation/vm/numa> for more.
1673
1674config ARCH_POPULATES_NODE_MAP
1675 def_bool y
1676
1677config ARCH_SPARSEMEM_ENABLE
1678 bool
1679 select SPARSEMEM_STATIC
1680
1681config NUMA
1682 bool "NUMA Support"
1683 depends on SYS_SUPPORTS_NUMA
1684 help
1685 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1686 Access). This option improves performance on systems with more
1687 than two nodes; on two node systems it is generally better to
1688 leave it disabled; on single node systems disable this option
1689 disabled.
1690
1691config SYS_SUPPORTS_NUMA
1692 bool
1693
1694config NODES_SHIFT
1695 int
1696 default "6"
1697 depends on NEED_MULTIPLE_NODES
1698
1699source "mm/Kconfig"
1700
1701config SMP
1702 bool "Multi-Processing support"
1703 depends on SYS_SUPPORTS_SMP
1704 select IRQ_PER_CPU
1705 help
1706 This enables support for systems with more than one CPU. If you have
1707 a system with only one CPU, like most personal computers, say N. If
1708 you have a system with more than one CPU, say Y.
1709
1710 If you say N here, the kernel will run on single and multiprocessor
1711 machines, but will use only one CPU of a multiprocessor machine. If
1712 you say Y here, the kernel will run on many, but not all,
1713 singleprocessor machines. On a singleprocessor machine, the kernel
1714 will run faster if you say N here.
1715
1716 People using multiprocessor machines who say Y here should also say
1717 Y to "Enhanced Real Time Clock Support", below.
1718
1719 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1720 available at <http://www.tldp.org/docs.html#howto>.
1721
1722 If you don't know what to do here, say N.
1723
1724config SYS_SUPPORTS_SMP
1725 bool
1726
1727config NR_CPUS_DEFAULT_1
1728 bool
1729
1730config NR_CPUS_DEFAULT_2
1731 bool
1732
1733config NR_CPUS_DEFAULT_4
1734 bool
1735
1736config NR_CPUS_DEFAULT_8
1737 bool
1738
1739config NR_CPUS_DEFAULT_16
1740 bool
1741
1742config NR_CPUS_DEFAULT_32
1743 bool
1744
1745config NR_CPUS_DEFAULT_64
1746 bool
1747
1748config NR_CPUS
1749 int "Maximum number of CPUs (2-64)"
1750 range 1 64 if NR_CPUS_DEFAULT_1
1751 depends on SMP
1752 default "1" if NR_CPUS_DEFAULT_1
1753 default "2" if NR_CPUS_DEFAULT_2
1754 default "4" if NR_CPUS_DEFAULT_4
1755 default "8" if NR_CPUS_DEFAULT_8
1756 default "16" if NR_CPUS_DEFAULT_16
1757 default "32" if NR_CPUS_DEFAULT_32
1758 default "64" if NR_CPUS_DEFAULT_64
1759 help
1760 This allows you to specify the maximum number of CPUs which this
1761 kernel will support. The maximum supported value is 32 for 32-bit
1762 kernel and 64 for 64-bit kernels; the minimum value which makes
1763 sense is 1 for Qemu (useful only for kernel debugging purposes)
1764 and 2 for all others.
1765
1766 This is purely to save memory - each supported CPU adds
1767 approximately eight kilobytes to the kernel image. For best
1768 performance should round up your number of processors to the next
1769 power of two.
1770
1771#
1772# Timer Interrupt Frequency Configuration
1773#
1774
1775choice
1776 prompt "Timer frequency"
1777 default HZ_250
1778 help
1779 Allows the configuration of the timer frequency.
1780
1781 config HZ_48
1782 bool "48 HZ" if SYS_SUPPORTS_48HZ
1783
1784 config HZ_100
1785 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1786
1787 config HZ_128
1788 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1789
1790 config HZ_250
1791 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1792
1793 config HZ_256
1794 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1795
1796 config HZ_1000
1797 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1798
1799 config HZ_1024
1800 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1801
1802endchoice
1803
1804config SYS_SUPPORTS_48HZ
1805 bool
1806
1807config SYS_SUPPORTS_100HZ
1808 bool
1809
1810config SYS_SUPPORTS_128HZ
1811 bool
1812
1813config SYS_SUPPORTS_250HZ
1814 bool
1815
1816config SYS_SUPPORTS_256HZ
1817 bool
1818
1819config SYS_SUPPORTS_1000HZ
1820 bool
1821
1822config SYS_SUPPORTS_1024HZ
1823 bool
1824
1825config SYS_SUPPORTS_ARBIT_HZ
1826 bool
1827 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1828 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1829 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1830 !SYS_SUPPORTS_1024HZ
1831
1832config HZ
1833 int
1834 default 48 if HZ_48
1835 default 100 if HZ_100
1836 default 128 if HZ_128
1837 default 250 if HZ_250
1838 default 256 if HZ_256
1839 default 1000 if HZ_1000
1840 default 1024 if HZ_1024
1841
1842source "kernel/Kconfig.preempt"
1843
1844config MIPS_INSANE_LARGE
1845 bool "Support for large 64-bit configurations"
1846 depends on CPU_R10000 && 64BIT
1847 help
1848 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1849 previous 64-bit processors which only supported 40 bit / 1TB. If you
1850 need processes of more than 1TB virtual address space, say Y here.
1851 This will result in additional memory usage, so it is not
1852 recommended for normal users.
1853
1854config KEXEC
1855 bool "Kexec system call (EXPERIMENTAL)"
1856 depends on EXPERIMENTAL
1857 help
1858 kexec is a system call that implements the ability to shutdown your
1859 current kernel, and to start another kernel. It is like a reboot
1860 but it is independent of the system firmware. And like a reboot
1861 you can start any kernel with it, not just Linux.
1862
1863 The name comes from the similarity to the exec system call.
1864
1865 It is an ongoing process to be certain the hardware in a machine
1866 is properly shutdown, so do not be surprised if this code does not
1867 initially work for you. It may help to enable device hotplugging
1868 support. As of this writing the exact hardware interface is
1869 strongly in flux, so no good recommendation can be made.
1870
1871config SECCOMP
1872 bool "Enable seccomp to safely compute untrusted bytecode"
1873 depends on PROC_FS
1874 default y
1875 help
1876 This kernel feature is useful for number crunching applications
1877 that may need to compute untrusted bytecode during their
1878 execution. By using pipes or other transports made available to
1879 the process as file descriptors supporting the read/write
1880 syscalls, it's possible to isolate those applications in
1881 their own address space using seccomp. Once seccomp is
1882 enabled via /proc/<pid>/seccomp, it cannot be disabled
1883 and the task is only allowed to execute a few safe syscalls
1884 defined by each seccomp mode.
1885
1886 If unsure, say Y. Only embedded should say N here.
1887
1888endmenu
1889
1890config RWSEM_GENERIC_SPINLOCK
1891 bool
1892 default y
1893
1894config LOCKDEP_SUPPORT
1895 bool
1896 default y
1897
1898config STACKTRACE_SUPPORT
1899 bool
1900 default y
1901
1902source "init/Kconfig"
1903
1904menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1905
1906config HW_HAS_EISA
1907 bool
1908config HW_HAS_PCI
1909 bool
1910
1911config PCI
1912 bool "Support for PCI controller"
1913 depends on HW_HAS_PCI
1914 select PCI_DOMAINS
1915 help
1916 Find out whether you have a PCI motherboard. PCI is the name of a
1917 bus system, i.e. the way the CPU talks to the other stuff inside
1918 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1919 say Y, otherwise N.
1920
1921 The PCI-HOWTO, available from
1922 <http://www.tldp.org/docs.html#howto>, contains valuable
1923 information about which PCI hardware does work under Linux and which
1924 doesn't.
1925
1926config PCI_DOMAINS
1927 bool
1928
1929source "drivers/pci/Kconfig"
1930
1931#
1932# ISA support is now enabled via select. Too many systems still have the one
1933# or other ISA chip on the board that users don't know about so don't expect
1934# users to choose the right thing ...
1935#
1936config ISA
1937 bool
1938
1939config EISA
1940 bool "EISA support"
1941 depends on HW_HAS_EISA
1942 select ISA
1943 select GENERIC_ISA_DMA
1944 ---help---
1945 The Extended Industry Standard Architecture (EISA) bus was
1946 developed as an open alternative to the IBM MicroChannel bus.
1947
1948 The EISA bus provided some of the features of the IBM MicroChannel
1949 bus while maintaining backward compatibility with cards made for
1950 the older ISA bus. The EISA bus saw limited use between 1988 and
1951 1995 when it was made obsolete by the PCI bus.
1952
1953 Say Y here if you are building a kernel for an EISA-based machine.
1954
1955 Otherwise, say N.
1956
1957source "drivers/eisa/Kconfig"
1958
1959config TC
1960 bool "TURBOchannel support"
1961 depends on MACH_DECSTATION
1962 help
1963 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1964 processors. Documentation on writing device drivers for TurboChannel
1965 is available at:
1966 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1967
1968#config ACCESSBUS
1969# bool "Access.Bus support"
1970# depends on TC
1971
1972config MMU
1973 bool
1974 default y
1975
1976config I8253
1977 bool
1978
1979config PCSPEAKER
1980 bool
1981
1982config ZONE_DMA32
1983 bool
1984
1985source "drivers/pcmcia/Kconfig"
1986
1987source "drivers/pci/hotplug/Kconfig"
1988
1989endmenu
1990
1991menu "Executable file formats"
1992
1993source "fs/Kconfig.binfmt"
1994
1995config TRAD_SIGNALS
1996 bool
1997
1998config BINFMT_IRIX
1999 bool "Include IRIX binary compatibility"
2000 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
2001
2002config MIPS32_COMPAT
2003 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2004 depends on 64BIT
2005 help
2006 Select this option if you want Linux/MIPS 32-bit binary
2007 compatibility. Since all software available for Linux/MIPS is
2008 currently 32-bit you should say Y here.
2009
2010config COMPAT
2011 bool
2012 depends on MIPS32_COMPAT
2013 default y
2014
2015config SYSVIPC_COMPAT
2016 bool
2017 depends on COMPAT && SYSVIPC
2018 default y
2019
2020config MIPS32_O32
2021 bool "Kernel support for o32 binaries"
2022 depends on MIPS32_COMPAT
2023 help
2024 Select this option if you want to run o32 binaries. These are pure
2025 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2026 existing binaries are in this format.
2027
2028 If unsure, say Y.
2029
2030config MIPS32_N32
2031 bool "Kernel support for n32 binaries"
2032 depends on MIPS32_COMPAT
2033 help
2034 Select this option if you want to run n32 binaries. These are
2035 64-bit binaries using 32-bit quantities for addressing and certain
2036 data that would normally be 64-bit. They are used in special
2037 cases.
2038
2039 If unsure, say N.
2040
2041config BINFMT_ELF32
2042 bool
2043 default y if MIPS32_O32 || MIPS32_N32
2044
2045endmenu
2046
2047menu "Power management options"
2048
2049source "kernel/power/Kconfig"
2050
2051endmenu
2052
2053source "net/Kconfig"
2054
2055source "drivers/Kconfig"
2056
2057source "fs/Kconfig"
2058
2059source "kernel/Kconfig.instrumentation"
2060
2061source "arch/mips/Kconfig.debug"
2062
2063source "security/Kconfig"
2064
2065source "crypto/Kconfig"
2066
2067source "lib/Kconfig"