of/flattree: Add Kconfig for EARLY_FLATTREE
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select HAVE_GENERIC_DMA_COHERENT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
9 select HAVE_ARCH_KGDB
10 select HAVE_FUNCTION_TRACER
11 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
12 select HAVE_DYNAMIC_FTRACE
13 select HAVE_FTRACE_MCOUNT_RECORD
14 select HAVE_C_RECORDMCOUNT
15 select HAVE_FUNCTION_GRAPH_TRACER
16 select HAVE_KPROBES
17 select HAVE_KRETPROBES
18 select RTC_LIB if !MACH_LOONGSON
19 select GENERIC_ATOMIC64 if !64BIT
20 select HAVE_DMA_ATTRS
21 select HAVE_DMA_API_DEBUG
22 select HAVE_GENERIC_HARDIRQS
23 select GENERIC_IRQ_PROBE
24
25 menu "Machine selection"
26
27 config ZONE_DMA
28 bool
29
30 choice
31 prompt "System type"
32 default SGI_IP22
33
34 config MIPS_ALCHEMY
35 bool "Alchemy processor based machines"
36 select 64BIT_PHYS_ADDR
37 select CEVT_R4K_LIB
38 select CSRC_R4K_LIB
39 select IRQ_CPU
40 select SYS_HAS_CPU_MIPS32_R1
41 select SYS_SUPPORTS_32BIT_KERNEL
42 select SYS_SUPPORTS_APM_EMULATION
43 select GENERIC_GPIO
44 select ARCH_WANT_OPTIONAL_GPIOLIB
45 select SYS_SUPPORTS_ZBOOT
46
47 config AR7
48 bool "Texas Instruments AR7"
49 select BOOT_ELF32
50 select DMA_NONCOHERENT
51 select CEVT_R4K
52 select CSRC_R4K
53 select IRQ_CPU
54 select NO_EXCEPT_FILL
55 select SWAP_IO_SPACE
56 select SYS_HAS_CPU_MIPS32_R1
57 select SYS_HAS_EARLY_PRINTK
58 select SYS_SUPPORTS_32BIT_KERNEL
59 select SYS_SUPPORTS_LITTLE_ENDIAN
60 select SYS_SUPPORTS_ZBOOT_UART16550
61 select ARCH_REQUIRE_GPIOLIB
62 select GCD
63 select VLYNQ
64 help
65 Support for the Texas Instruments AR7 System-on-a-Chip
66 family: TNETD7100, 7200 and 7300.
67
68 config BCM47XX
69 bool "Broadcom BCM47XX based boards"
70 select CEVT_R4K
71 select CSRC_R4K
72 select DMA_NONCOHERENT
73 select HW_HAS_PCI
74 select IRQ_CPU
75 select SYS_HAS_CPU_MIPS32_R1
76 select SYS_SUPPORTS_32BIT_KERNEL
77 select SYS_SUPPORTS_LITTLE_ENDIAN
78 select SSB
79 select SSB_DRIVER_MIPS
80 select SSB_DRIVER_EXTIF
81 select SSB_EMBEDDED
82 select SSB_B43_PCI_BRIDGE if PCI
83 select SSB_PCICORE_HOSTMODE if PCI
84 select GENERIC_GPIO
85 select SYS_HAS_EARLY_PRINTK
86 select CFE
87 help
88 Support for BCM47XX based boards
89
90 config BCM63XX
91 bool "Broadcom BCM63XX based boards"
92 select CEVT_R4K
93 select CSRC_R4K
94 select DMA_NONCOHERENT
95 select IRQ_CPU
96 select SYS_HAS_CPU_MIPS32_R1
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_BIG_ENDIAN
99 select SYS_HAS_EARLY_PRINTK
100 select SWAP_IO_SPACE
101 select ARCH_REQUIRE_GPIOLIB
102 help
103 Support for BCM63XX based boards
104
105 config MIPS_COBALT
106 bool "Cobalt Server"
107 select CEVT_R4K
108 select CSRC_R4K
109 select CEVT_GT641XX
110 select DMA_NONCOHERENT
111 select HW_HAS_PCI
112 select I8253
113 select I8259
114 select IRQ_CPU
115 select IRQ_GT641XX
116 select PCI_GT64XXX_PCI0
117 select PCI
118 select SYS_HAS_CPU_NEVADA
119 select SYS_HAS_EARLY_PRINTK
120 select SYS_SUPPORTS_32BIT_KERNEL
121 select SYS_SUPPORTS_64BIT_KERNEL
122 select SYS_SUPPORTS_LITTLE_ENDIAN
123
124 config MACH_DECSTATION
125 bool "DECstations"
126 select BOOT_ELF32
127 select CEVT_DS1287
128 select CEVT_R4K
129 select CSRC_IOASIC
130 select CSRC_R4K
131 select CPU_DADDI_WORKAROUNDS if 64BIT
132 select CPU_R4000_WORKAROUNDS if 64BIT
133 select CPU_R4400_WORKAROUNDS if 64BIT
134 select DMA_NONCOHERENT
135 select NO_IOPORT
136 select IRQ_CPU
137 select SYS_HAS_CPU_R3000
138 select SYS_HAS_CPU_R4X00
139 select SYS_SUPPORTS_32BIT_KERNEL
140 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
141 select SYS_SUPPORTS_LITTLE_ENDIAN
142 select SYS_SUPPORTS_128HZ
143 select SYS_SUPPORTS_256HZ
144 select SYS_SUPPORTS_1024HZ
145 help
146 This enables support for DEC's MIPS based workstations. For details
147 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
148 DECstation porting pages on <http://decstation.unix-ag.org/>.
149
150 If you have one of the following DECstation Models you definitely
151 want to choose R4xx0 for the CPU Type:
152
153 DECstation 5000/50
154 DECstation 5000/150
155 DECstation 5000/260
156 DECsystem 5900/260
157
158 otherwise choose R3000.
159
160 config MACH_JAZZ
161 bool "Jazz family of machines"
162 select ARC
163 select ARC32
164 select ARCH_MAY_HAVE_PC_FDC
165 select CEVT_R4K
166 select CSRC_R4K
167 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
168 select GENERIC_ISA_DMA
169 select IRQ_CPU
170 select I8253
171 select I8259
172 select ISA
173 select SYS_HAS_CPU_R4X00
174 select SYS_SUPPORTS_32BIT_KERNEL
175 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
176 select SYS_SUPPORTS_100HZ
177 help
178 This a family of machines based on the MIPS R4030 chipset which was
179 used by several vendors to build RISC/os and Windows NT workstations.
180 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
181 Olivetti M700-10 workstations.
182
183 config MACH_JZ4740
184 bool "Ingenic JZ4740 based machines"
185 select SYS_HAS_CPU_MIPS32_R1
186 select SYS_SUPPORTS_32BIT_KERNEL
187 select SYS_SUPPORTS_LITTLE_ENDIAN
188 select DMA_NONCOHERENT
189 select IRQ_CPU
190 select GENERIC_GPIO
191 select ARCH_REQUIRE_GPIOLIB
192 select SYS_HAS_EARLY_PRINTK
193 select HAVE_PWM
194
195 config LASAT
196 bool "LASAT Networks platforms"
197 select CEVT_R4K
198 select CSRC_R4K
199 select DMA_NONCOHERENT
200 select SYS_HAS_EARLY_PRINTK
201 select HW_HAS_PCI
202 select IRQ_CPU
203 select PCI_GT64XXX_PCI0
204 select MIPS_NILE4
205 select R5000_CPU_SCACHE
206 select SYS_HAS_CPU_R5000
207 select SYS_SUPPORTS_32BIT_KERNEL
208 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
209 select SYS_SUPPORTS_LITTLE_ENDIAN
210
211 config MACH_LOONGSON
212 bool "Loongson family of machines"
213 select SYS_SUPPORTS_ZBOOT
214 help
215 This enables the support of Loongson family of machines.
216
217 Loongson is a family of general-purpose MIPS-compatible CPUs.
218 developed at Institute of Computing Technology (ICT),
219 Chinese Academy of Sciences (CAS) in the People's Republic
220 of China. The chief architect is Professor Weiwu Hu.
221
222 config MIPS_MALTA
223 bool "MIPS Malta board"
224 select ARCH_MAY_HAVE_PC_FDC
225 select BOOT_ELF32
226 select BOOT_RAW
227 select CEVT_R4K
228 select CSRC_R4K
229 select DMA_NONCOHERENT
230 select GENERIC_ISA_DMA
231 select IRQ_CPU
232 select IRQ_GIC
233 select HW_HAS_PCI
234 select I8253
235 select I8259
236 select MIPS_BOARDS_GEN
237 select MIPS_BONITO64
238 select MIPS_CPU_SCACHE
239 select PCI_GT64XXX_PCI0
240 select MIPS_MSC
241 select SWAP_IO_SPACE
242 select SYS_HAS_CPU_MIPS32_R1
243 select SYS_HAS_CPU_MIPS32_R2
244 select SYS_HAS_CPU_MIPS64_R1
245 select SYS_HAS_CPU_NEVADA
246 select SYS_HAS_CPU_RM7000
247 select SYS_HAS_EARLY_PRINTK
248 select SYS_SUPPORTS_32BIT_KERNEL
249 select SYS_SUPPORTS_64BIT_KERNEL
250 select SYS_SUPPORTS_BIG_ENDIAN
251 select SYS_SUPPORTS_LITTLE_ENDIAN
252 select SYS_SUPPORTS_MIPS_CMP
253 select SYS_SUPPORTS_MULTITHREADING
254 select SYS_SUPPORTS_SMARTMIPS
255 select SYS_SUPPORTS_ZBOOT
256 help
257 This enables support for the MIPS Technologies Malta evaluation
258 board.
259
260 config MIPS_SIM
261 bool 'MIPS simulator (MIPSsim)'
262 select CEVT_R4K
263 select CSRC_R4K
264 select DMA_NONCOHERENT
265 select SYS_HAS_EARLY_PRINTK
266 select IRQ_CPU
267 select BOOT_RAW
268 select SYS_HAS_CPU_MIPS32_R1
269 select SYS_HAS_CPU_MIPS32_R2
270 select SYS_HAS_EARLY_PRINTK
271 select SYS_SUPPORTS_32BIT_KERNEL
272 select SYS_SUPPORTS_BIG_ENDIAN
273 select SYS_SUPPORTS_MULTITHREADING
274 select SYS_SUPPORTS_LITTLE_ENDIAN
275 help
276 This option enables support for MIPS Technologies MIPSsim software
277 emulator.
278
279 config NEC_MARKEINS
280 bool "NEC EMMA2RH Mark-eins board"
281 select SOC_EMMA2RH
282 select HW_HAS_PCI
283 help
284 This enables support for the NEC Electronics Mark-eins boards.
285
286 config MACH_VR41XX
287 bool "NEC VR4100 series based machines"
288 select CEVT_R4K
289 select CSRC_R4K
290 select SYS_HAS_CPU_VR41XX
291 select ARCH_REQUIRE_GPIOLIB
292
293 config NXP_STB220
294 bool "NXP STB220 board"
295 select SOC_PNX833X
296 help
297 Support for NXP Semiconductors STB220 Development Board.
298
299 config NXP_STB225
300 bool "NXP 225 board"
301 select SOC_PNX833X
302 select SOC_PNX8335
303 help
304 Support for NXP Semiconductors STB225 Development Board.
305
306 config PNX8550_JBS
307 bool "NXP PNX8550 based JBS board"
308 select PNX8550
309 select SYS_SUPPORTS_LITTLE_ENDIAN
310
311 config PNX8550_STB810
312 bool "NXP PNX8550 based STB810 board"
313 select PNX8550
314 select SYS_SUPPORTS_LITTLE_ENDIAN
315
316 config PMC_MSP
317 bool "PMC-Sierra MSP chipsets"
318 depends on EXPERIMENTAL
319 select DMA_NONCOHERENT
320 select SWAP_IO_SPACE
321 select NO_EXCEPT_FILL
322 select BOOT_RAW
323 select SYS_HAS_CPU_MIPS32_R1
324 select SYS_HAS_CPU_MIPS32_R2
325 select SYS_SUPPORTS_32BIT_KERNEL
326 select SYS_SUPPORTS_BIG_ENDIAN
327 select IRQ_CPU
328 select SERIAL_8250
329 select SERIAL_8250_CONSOLE
330 help
331 This adds support for the PMC-Sierra family of Multi-Service
332 Processor System-On-A-Chips. These parts include a number
333 of integrated peripherals, interfaces and DSPs in addition to
334 a variety of MIPS cores.
335
336 config PMC_YOSEMITE
337 bool "PMC-Sierra Yosemite eval board"
338 select CEVT_R4K
339 select CSRC_R4K
340 select DMA_COHERENT
341 select HW_HAS_PCI
342 select IRQ_CPU
343 select IRQ_CPU_RM7K
344 select IRQ_CPU_RM9K
345 select SWAP_IO_SPACE
346 select SYS_HAS_CPU_RM9000
347 select SYS_HAS_EARLY_PRINTK
348 select SYS_SUPPORTS_32BIT_KERNEL
349 select SYS_SUPPORTS_64BIT_KERNEL
350 select SYS_SUPPORTS_BIG_ENDIAN
351 select SYS_SUPPORTS_HIGHMEM
352 select SYS_SUPPORTS_SMP
353 help
354 Yosemite is an evaluation board for the RM9000x2 processor
355 manufactured by PMC-Sierra.
356
357 config POWERTV
358 bool "Cisco PowerTV"
359 select BOOT_ELF32
360 select CEVT_R4K
361 select CPU_MIPSR2_IRQ_VI
362 select CPU_MIPSR2_IRQ_EI
363 select CSRC_POWERTV
364 select DMA_NONCOHERENT
365 select HW_HAS_PCI
366 select SYS_HAS_EARLY_PRINTK
367 select SYS_HAS_CPU_MIPS32_R2
368 select SYS_SUPPORTS_32BIT_KERNEL
369 select SYS_SUPPORTS_BIG_ENDIAN
370 select SYS_SUPPORTS_HIGHMEM
371 select USB_OHCI_LITTLE_ENDIAN
372 help
373 This enables support for the Cisco PowerTV Platform.
374
375 config SGI_IP22
376 bool "SGI IP22 (Indy/Indigo2)"
377 select ARC
378 select ARC32
379 select BOOT_ELF32
380 select CEVT_R4K
381 select CSRC_R4K
382 select DEFAULT_SGI_PARTITION
383 select DMA_NONCOHERENT
384 select HW_HAS_EISA
385 select I8253
386 select I8259
387 select IP22_CPU_SCACHE
388 select IRQ_CPU
389 select GENERIC_ISA_DMA_SUPPORT_BROKEN
390 select SGI_HAS_I8042
391 select SGI_HAS_INDYDOG
392 select SGI_HAS_HAL2
393 select SGI_HAS_SEEQ
394 select SGI_HAS_WD93
395 select SGI_HAS_ZILOG
396 select SWAP_IO_SPACE
397 select SYS_HAS_CPU_R4X00
398 select SYS_HAS_CPU_R5000
399 #
400 # Disable EARLY_PRINTK for now since it leads to overwritten prom
401 # memory during early boot on some machines.
402 #
403 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
404 # for a more details discussion
405 #
406 # select SYS_HAS_EARLY_PRINTK
407 select SYS_SUPPORTS_32BIT_KERNEL
408 select SYS_SUPPORTS_64BIT_KERNEL
409 select SYS_SUPPORTS_BIG_ENDIAN
410 help
411 This are the SGI Indy, Challenge S and Indigo2, as well as certain
412 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
413 that runs on these, say Y here.
414
415 config SGI_IP27
416 bool "SGI IP27 (Origin200/2000)"
417 select ARC
418 select ARC64
419 select BOOT_ELF64
420 select DEFAULT_SGI_PARTITION
421 select DMA_COHERENT
422 select SYS_HAS_EARLY_PRINTK
423 select HW_HAS_PCI
424 select NR_CPUS_DEFAULT_64
425 select SYS_HAS_CPU_R10000
426 select SYS_SUPPORTS_64BIT_KERNEL
427 select SYS_SUPPORTS_BIG_ENDIAN
428 select SYS_SUPPORTS_NUMA
429 select SYS_SUPPORTS_SMP
430 help
431 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
432 workstations. To compile a Linux kernel that runs on these, say Y
433 here.
434
435 config SGI_IP28
436 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
437 depends on EXPERIMENTAL
438 select ARC
439 select ARC64
440 select BOOT_ELF64
441 select CEVT_R4K
442 select CSRC_R4K
443 select DEFAULT_SGI_PARTITION
444 select DMA_NONCOHERENT
445 select GENERIC_ISA_DMA_SUPPORT_BROKEN
446 select IRQ_CPU
447 select HW_HAS_EISA
448 select I8253
449 select I8259
450 select SGI_HAS_I8042
451 select SGI_HAS_INDYDOG
452 select SGI_HAS_HAL2
453 select SGI_HAS_SEEQ
454 select SGI_HAS_WD93
455 select SGI_HAS_ZILOG
456 select SWAP_IO_SPACE
457 select SYS_HAS_CPU_R10000
458 #
459 # Disable EARLY_PRINTK for now since it leads to overwritten prom
460 # memory during early boot on some machines.
461 #
462 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
463 # for a more details discussion
464 #
465 # select SYS_HAS_EARLY_PRINTK
466 select SYS_SUPPORTS_64BIT_KERNEL
467 select SYS_SUPPORTS_BIG_ENDIAN
468 help
469 This is the SGI Indigo2 with R10000 processor. To compile a Linux
470 kernel that runs on these, say Y here.
471
472 config SGI_IP32
473 bool "SGI IP32 (O2)"
474 select ARC
475 select ARC32
476 select BOOT_ELF32
477 select CEVT_R4K
478 select CSRC_R4K
479 select DMA_NONCOHERENT
480 select HW_HAS_PCI
481 select IRQ_CPU
482 select R5000_CPU_SCACHE
483 select RM7000_CPU_SCACHE
484 select SYS_HAS_CPU_R5000
485 select SYS_HAS_CPU_R10000 if BROKEN
486 select SYS_HAS_CPU_RM7000
487 select SYS_HAS_CPU_NEVADA
488 select SYS_SUPPORTS_64BIT_KERNEL
489 select SYS_SUPPORTS_BIG_ENDIAN
490 help
491 If you want this kernel to run on SGI O2 workstation, say Y here.
492
493 config SIBYTE_CRHINE
494 bool "Sibyte BCM91120C-CRhine"
495 depends on EXPERIMENTAL
496 select BOOT_ELF32
497 select DMA_COHERENT
498 select SIBYTE_BCM1120
499 select SWAP_IO_SPACE
500 select SYS_HAS_CPU_SB1
501 select SYS_SUPPORTS_BIG_ENDIAN
502 select SYS_SUPPORTS_LITTLE_ENDIAN
503
504 config SIBYTE_CARMEL
505 bool "Sibyte BCM91120x-Carmel"
506 depends on EXPERIMENTAL
507 select BOOT_ELF32
508 select DMA_COHERENT
509 select SIBYTE_BCM1120
510 select SWAP_IO_SPACE
511 select SYS_HAS_CPU_SB1
512 select SYS_SUPPORTS_BIG_ENDIAN
513 select SYS_SUPPORTS_LITTLE_ENDIAN
514
515 config SIBYTE_CRHONE
516 bool "Sibyte BCM91125C-CRhone"
517 depends on EXPERIMENTAL
518 select BOOT_ELF32
519 select DMA_COHERENT
520 select SIBYTE_BCM1125
521 select SWAP_IO_SPACE
522 select SYS_HAS_CPU_SB1
523 select SYS_SUPPORTS_BIG_ENDIAN
524 select SYS_SUPPORTS_HIGHMEM
525 select SYS_SUPPORTS_LITTLE_ENDIAN
526
527 config SIBYTE_RHONE
528 bool "Sibyte BCM91125E-Rhone"
529 depends on EXPERIMENTAL
530 select BOOT_ELF32
531 select DMA_COHERENT
532 select SIBYTE_BCM1125H
533 select SWAP_IO_SPACE
534 select SYS_HAS_CPU_SB1
535 select SYS_SUPPORTS_BIG_ENDIAN
536 select SYS_SUPPORTS_LITTLE_ENDIAN
537
538 config SIBYTE_SWARM
539 bool "Sibyte BCM91250A-SWARM"
540 select BOOT_ELF32
541 select DMA_COHERENT
542 select HAVE_PATA_PLATFORM
543 select NR_CPUS_DEFAULT_2
544 select SIBYTE_SB1250
545 select SWAP_IO_SPACE
546 select SYS_HAS_CPU_SB1
547 select SYS_SUPPORTS_BIG_ENDIAN
548 select SYS_SUPPORTS_HIGHMEM
549 select SYS_SUPPORTS_LITTLE_ENDIAN
550 select ZONE_DMA32 if 64BIT
551
552 config SIBYTE_LITTLESUR
553 bool "Sibyte BCM91250C2-LittleSur"
554 depends on EXPERIMENTAL
555 select BOOT_ELF32
556 select DMA_COHERENT
557 select HAVE_PATA_PLATFORM
558 select NR_CPUS_DEFAULT_2
559 select SIBYTE_SB1250
560 select SWAP_IO_SPACE
561 select SYS_HAS_CPU_SB1
562 select SYS_SUPPORTS_BIG_ENDIAN
563 select SYS_SUPPORTS_HIGHMEM
564 select SYS_SUPPORTS_LITTLE_ENDIAN
565
566 config SIBYTE_SENTOSA
567 bool "Sibyte BCM91250E-Sentosa"
568 depends on EXPERIMENTAL
569 select BOOT_ELF32
570 select DMA_COHERENT
571 select NR_CPUS_DEFAULT_2
572 select SIBYTE_SB1250
573 select SWAP_IO_SPACE
574 select SYS_HAS_CPU_SB1
575 select SYS_SUPPORTS_BIG_ENDIAN
576 select SYS_SUPPORTS_LITTLE_ENDIAN
577
578 config SIBYTE_BIGSUR
579 bool "Sibyte BCM91480B-BigSur"
580 select BOOT_ELF32
581 select DMA_COHERENT
582 select NR_CPUS_DEFAULT_4
583 select SIBYTE_BCM1x80
584 select SWAP_IO_SPACE
585 select SYS_HAS_CPU_SB1
586 select SYS_SUPPORTS_BIG_ENDIAN
587 select SYS_SUPPORTS_HIGHMEM
588 select SYS_SUPPORTS_LITTLE_ENDIAN
589 select ZONE_DMA32 if 64BIT
590
591 config SNI_RM
592 bool "SNI RM200/300/400"
593 select ARC if CPU_LITTLE_ENDIAN
594 select ARC32 if CPU_LITTLE_ENDIAN
595 select SNIPROM if CPU_BIG_ENDIAN
596 select ARCH_MAY_HAVE_PC_FDC
597 select BOOT_ELF32
598 select CEVT_R4K
599 select CSRC_R4K
600 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
601 select DMA_NONCOHERENT
602 select GENERIC_ISA_DMA
603 select HW_HAS_EISA
604 select HW_HAS_PCI
605 select IRQ_CPU
606 select I8253
607 select I8259
608 select ISA
609 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
610 select SYS_HAS_CPU_R4X00
611 select SYS_HAS_CPU_R5000
612 select SYS_HAS_CPU_R10000
613 select R5000_CPU_SCACHE
614 select SYS_HAS_EARLY_PRINTK
615 select SYS_SUPPORTS_32BIT_KERNEL
616 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
617 select SYS_SUPPORTS_BIG_ENDIAN
618 select SYS_SUPPORTS_HIGHMEM
619 select SYS_SUPPORTS_LITTLE_ENDIAN
620 help
621 The SNI RM200/300/400 are MIPS-based machines manufactured by
622 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
623 Technology and now in turn merged with Fujitsu. Say Y here to
624 support this machine type.
625
626 config MACH_TX39XX
627 bool "Toshiba TX39 series based machines"
628
629 config MACH_TX49XX
630 bool "Toshiba TX49 series based machines"
631
632 config MIKROTIK_RB532
633 bool "Mikrotik RB532 boards"
634 select CEVT_R4K
635 select CSRC_R4K
636 select DMA_NONCOHERENT
637 select HW_HAS_PCI
638 select IRQ_CPU
639 select SYS_HAS_CPU_MIPS32_R1
640 select SYS_SUPPORTS_32BIT_KERNEL
641 select SYS_SUPPORTS_LITTLE_ENDIAN
642 select SWAP_IO_SPACE
643 select BOOT_RAW
644 select ARCH_REQUIRE_GPIOLIB
645 help
646 Support the Mikrotik(tm) RouterBoard 532 series,
647 based on the IDT RC32434 SoC.
648
649 config WR_PPMC
650 bool "Wind River PPMC board"
651 select CEVT_R4K
652 select CSRC_R4K
653 select IRQ_CPU
654 select BOOT_ELF32
655 select DMA_NONCOHERENT
656 select HW_HAS_PCI
657 select PCI_GT64XXX_PCI0
658 select SWAP_IO_SPACE
659 select SYS_HAS_CPU_MIPS32_R1
660 select SYS_HAS_CPU_MIPS32_R2
661 select SYS_HAS_CPU_MIPS64_R1
662 select SYS_HAS_CPU_NEVADA
663 select SYS_HAS_CPU_RM7000
664 select SYS_SUPPORTS_32BIT_KERNEL
665 select SYS_SUPPORTS_64BIT_KERNEL
666 select SYS_SUPPORTS_BIG_ENDIAN
667 select SYS_SUPPORTS_LITTLE_ENDIAN
668 help
669 This enables support for the Wind River MIPS32 4KC PPMC evaluation
670 board, which is based on GT64120 bridge chip.
671
672 config CAVIUM_OCTEON_SIMULATOR
673 bool "Cavium Networks Octeon Simulator"
674 select CEVT_R4K
675 select 64BIT_PHYS_ADDR
676 select DMA_COHERENT
677 select SYS_SUPPORTS_64BIT_KERNEL
678 select SYS_SUPPORTS_BIG_ENDIAN
679 select SYS_SUPPORTS_HIGHMEM
680 select SYS_SUPPORTS_HOTPLUG_CPU
681 select SYS_HAS_CPU_CAVIUM_OCTEON
682 help
683 The Octeon simulator is software performance model of the Cavium
684 Octeon Processor. It supports simulating Octeon processors on x86
685 hardware.
686
687 config CAVIUM_OCTEON_REFERENCE_BOARD
688 bool "Cavium Networks Octeon reference board"
689 select CEVT_R4K
690 select 64BIT_PHYS_ADDR
691 select DMA_COHERENT
692 select SYS_SUPPORTS_64BIT_KERNEL
693 select SYS_SUPPORTS_BIG_ENDIAN
694 select SYS_SUPPORTS_HIGHMEM
695 select SYS_SUPPORTS_HOTPLUG_CPU
696 select SYS_HAS_EARLY_PRINTK
697 select SYS_HAS_CPU_CAVIUM_OCTEON
698 select SWAP_IO_SPACE
699 select HW_HAS_PCI
700 select ARCH_SUPPORTS_MSI
701 select ZONE_DMA32
702 select USB_ARCH_HAS_OHCI
703 select USB_ARCH_HAS_EHCI
704 help
705 This option supports all of the Octeon reference boards from Cavium
706 Networks. It builds a kernel that dynamically determines the Octeon
707 CPU type and supports all known board reference implementations.
708 Some of the supported boards are:
709 EBT3000
710 EBH3000
711 EBH3100
712 Thunder
713 Kodama
714 Hikari
715 Say Y here for most Octeon reference boards.
716
717 endchoice
718
719 source "arch/mips/alchemy/Kconfig"
720 source "arch/mips/bcm63xx/Kconfig"
721 source "arch/mips/jazz/Kconfig"
722 source "arch/mips/jz4740/Kconfig"
723 source "arch/mips/lasat/Kconfig"
724 source "arch/mips/pmc-sierra/Kconfig"
725 source "arch/mips/powertv/Kconfig"
726 source "arch/mips/sgi-ip27/Kconfig"
727 source "arch/mips/sibyte/Kconfig"
728 source "arch/mips/txx9/Kconfig"
729 source "arch/mips/vr41xx/Kconfig"
730 source "arch/mips/cavium-octeon/Kconfig"
731 source "arch/mips/loongson/Kconfig"
732
733 endmenu
734
735 config RWSEM_GENERIC_SPINLOCK
736 bool
737 default y
738
739 config RWSEM_XCHGADD_ALGORITHM
740 bool
741
742 config ARCH_HAS_ILOG2_U32
743 bool
744 default n
745
746 config ARCH_HAS_ILOG2_U64
747 bool
748 default n
749
750 config ARCH_SUPPORTS_OPROFILE
751 bool
752 default y if !MIPS_MT_SMTC
753
754 config GENERIC_FIND_NEXT_BIT
755 bool
756 default y
757
758 config GENERIC_HWEIGHT
759 bool
760 default y
761
762 config GENERIC_CALIBRATE_DELAY
763 bool
764 default y
765
766 config GENERIC_CLOCKEVENTS
767 bool
768 default y
769
770 config GENERIC_CMOS_UPDATE
771 bool
772 default y
773
774 config SCHED_OMIT_FRAME_POINTER
775 bool
776 default y
777
778 config GENERIC_HARDIRQS_NO__DO_IRQ
779 def_bool y
780
781 #
782 # Select some configuration options automatically based on user selections.
783 #
784 config ARC
785 bool
786
787 config ARCH_MAY_HAVE_PC_FDC
788 bool
789
790 config BOOT_RAW
791 bool
792
793 config CEVT_BCM1480
794 bool
795
796 config CEVT_DS1287
797 bool
798
799 config CEVT_GT641XX
800 bool
801
802 config CEVT_R4K_LIB
803 bool
804
805 config CEVT_R4K
806 select CEVT_R4K_LIB
807 bool
808
809 config CEVT_SB1250
810 bool
811
812 config CEVT_TXX9
813 bool
814
815 config CSRC_BCM1480
816 bool
817
818 config CSRC_IOASIC
819 bool
820
821 config CSRC_POWERTV
822 bool
823
824 config CSRC_R4K_LIB
825 bool
826
827 config CSRC_R4K
828 select CSRC_R4K_LIB
829 bool
830
831 config CSRC_SB1250
832 bool
833
834 config GPIO_TXX9
835 select GENERIC_GPIO
836 select ARCH_REQUIRE_GPIOLIB
837 bool
838
839 config CFE
840 bool
841
842 config DMA_COHERENT
843 bool
844
845 config DMA_NONCOHERENT
846 bool
847 select NEED_DMA_MAP_STATE
848
849 config NEED_DMA_MAP_STATE
850 bool
851
852 config SYS_HAS_EARLY_PRINTK
853 bool
854
855 config HOTPLUG_CPU
856 bool "Support for hot-pluggable CPUs"
857 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
858 help
859 Say Y here to allow turning CPUs off and on. CPUs can be
860 controlled through /sys/devices/system/cpu.
861 (Note: power management support will enable this option
862 automatically on SMP systems. )
863 Say N if you want to disable CPU hotplug.
864
865 config SYS_SUPPORTS_HOTPLUG_CPU
866 bool
867
868 config I8259
869 bool
870
871 config MIPS_BONITO64
872 bool
873
874 config MIPS_MSC
875 bool
876
877 config MIPS_NILE4
878 bool
879
880 config MIPS_DISABLE_OBSOLETE_IDE
881 bool
882
883 config SYNC_R4K
884 bool
885
886 config NO_IOPORT
887 def_bool n
888
889 config GENERIC_ISA_DMA
890 bool
891 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
892 select ISA_DMA_API
893
894 config GENERIC_ISA_DMA_SUPPORT_BROKEN
895 bool
896 select GENERIC_ISA_DMA
897
898 config ISA_DMA_API
899 bool
900
901 config GENERIC_GPIO
902 bool
903
904 #
905 # Endianess selection. Sufficiently obscure so many users don't know what to
906 # answer,so we try hard to limit the available choices. Also the use of a
907 # choice statement should be more obvious to the user.
908 #
909 choice
910 prompt "Endianess selection"
911 help
912 Some MIPS machines can be configured for either little or big endian
913 byte order. These modes require different kernels and a different
914 Linux distribution. In general there is one preferred byteorder for a
915 particular system but some systems are just as commonly used in the
916 one or the other endianness.
917
918 config CPU_BIG_ENDIAN
919 bool "Big endian"
920 depends on SYS_SUPPORTS_BIG_ENDIAN
921
922 config CPU_LITTLE_ENDIAN
923 bool "Little endian"
924 depends on SYS_SUPPORTS_LITTLE_ENDIAN
925 help
926
927 endchoice
928
929 config EXPORT_UASM
930 bool
931
932 config SYS_SUPPORTS_APM_EMULATION
933 bool
934
935 config SYS_SUPPORTS_BIG_ENDIAN
936 bool
937
938 config SYS_SUPPORTS_LITTLE_ENDIAN
939 bool
940
941 config SYS_SUPPORTS_HUGETLBFS
942 bool
943 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
944 default y
945
946 config IRQ_CPU
947 bool
948
949 config IRQ_CPU_RM7K
950 bool
951
952 config IRQ_CPU_RM9K
953 bool
954
955 config IRQ_MSP_SLP
956 bool
957
958 config IRQ_MSP_CIC
959 bool
960
961 config IRQ_TXX9
962 bool
963
964 config IRQ_GT641XX
965 bool
966
967 config IRQ_GIC
968 bool
969
970 config IRQ_CPU_OCTEON
971 bool
972
973 config MIPS_BOARDS_GEN
974 bool
975
976 config PCI_GT64XXX_PCI0
977 bool
978
979 config NO_EXCEPT_FILL
980 bool
981
982 config MIPS_RM9122
983 bool
984 select SERIAL_RM9000
985
986 config SOC_EMMA2RH
987 bool
988 select CEVT_R4K
989 select CSRC_R4K
990 select DMA_NONCOHERENT
991 select IRQ_CPU
992 select SWAP_IO_SPACE
993 select SYS_HAS_CPU_R5500
994 select SYS_SUPPORTS_32BIT_KERNEL
995 select SYS_SUPPORTS_64BIT_KERNEL
996 select SYS_SUPPORTS_BIG_ENDIAN
997
998 config SOC_PNX833X
999 bool
1000 select CEVT_R4K
1001 select CSRC_R4K
1002 select IRQ_CPU
1003 select DMA_NONCOHERENT
1004 select SYS_HAS_CPU_MIPS32_R2
1005 select SYS_SUPPORTS_32BIT_KERNEL
1006 select SYS_SUPPORTS_LITTLE_ENDIAN
1007 select SYS_SUPPORTS_BIG_ENDIAN
1008 select GENERIC_GPIO
1009 select CPU_MIPSR2_IRQ_VI
1010
1011 config SOC_PNX8335
1012 bool
1013 select SOC_PNX833X
1014
1015 config PNX8550
1016 bool
1017 select SOC_PNX8550
1018
1019 config SOC_PNX8550
1020 bool
1021 select DMA_NONCOHERENT
1022 select HW_HAS_PCI
1023 select SYS_HAS_CPU_MIPS32_R1
1024 select SYS_HAS_EARLY_PRINTK
1025 select SYS_SUPPORTS_32BIT_KERNEL
1026 select GENERIC_GPIO
1027
1028 config SWAP_IO_SPACE
1029 bool
1030
1031 config SERIAL_RM9000
1032 bool
1033
1034 config SGI_HAS_INDYDOG
1035 bool
1036
1037 config SGI_HAS_HAL2
1038 bool
1039
1040 config SGI_HAS_SEEQ
1041 bool
1042
1043 config SGI_HAS_WD93
1044 bool
1045
1046 config SGI_HAS_ZILOG
1047 bool
1048
1049 config SGI_HAS_I8042
1050 bool
1051
1052 config DEFAULT_SGI_PARTITION
1053 bool
1054
1055 config ARC32
1056 bool
1057
1058 config SNIPROM
1059 bool
1060
1061 config BOOT_ELF32
1062 bool
1063
1064 config MIPS_L1_CACHE_SHIFT
1065 int
1066 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1067 default "6" if MIPS_CPU_SCACHE
1068 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1069 default "5"
1070
1071 config HAVE_STD_PC_SERIAL_PORT
1072 bool
1073
1074 config ARC_CONSOLE
1075 bool "ARC console support"
1076 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1077
1078 config ARC_MEMORY
1079 bool
1080 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1081 default y
1082
1083 config ARC_PROMLIB
1084 bool
1085 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1086 default y
1087
1088 config ARC64
1089 bool
1090
1091 config BOOT_ELF64
1092 bool
1093
1094 menu "CPU selection"
1095
1096 choice
1097 prompt "CPU type"
1098 default CPU_R4X00
1099
1100 config CPU_LOONGSON2E
1101 bool "Loongson 2E"
1102 depends on SYS_HAS_CPU_LOONGSON2E
1103 select CPU_LOONGSON2
1104 help
1105 The Loongson 2E processor implements the MIPS III instruction set
1106 with many extensions.
1107
1108 It has an internal FPGA northbridge, which is compatiable to
1109 bonito64.
1110
1111 config CPU_LOONGSON2F
1112 bool "Loongson 2F"
1113 depends on SYS_HAS_CPU_LOONGSON2F
1114 select CPU_LOONGSON2
1115 select GENERIC_GPIO
1116 select ARCH_REQUIRE_GPIOLIB
1117 help
1118 The Loongson 2F processor implements the MIPS III instruction set
1119 with many extensions.
1120
1121 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1122 have a similar programming interface with FPGA northbridge used in
1123 Loongson2E.
1124
1125 config CPU_MIPS32_R1
1126 bool "MIPS32 Release 1"
1127 depends on SYS_HAS_CPU_MIPS32_R1
1128 select CPU_HAS_PREFETCH
1129 select CPU_SUPPORTS_32BIT_KERNEL
1130 select CPU_SUPPORTS_HIGHMEM
1131 help
1132 Choose this option to build a kernel for release 1 or later of the
1133 MIPS32 architecture. Most modern embedded systems with a 32-bit
1134 MIPS processor are based on a MIPS32 processor. If you know the
1135 specific type of processor in your system, choose those that one
1136 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1137 Release 2 of the MIPS32 architecture is available since several
1138 years so chances are you even have a MIPS32 Release 2 processor
1139 in which case you should choose CPU_MIPS32_R2 instead for better
1140 performance.
1141
1142 config CPU_MIPS32_R2
1143 bool "MIPS32 Release 2"
1144 depends on SYS_HAS_CPU_MIPS32_R2
1145 select CPU_HAS_PREFETCH
1146 select CPU_SUPPORTS_32BIT_KERNEL
1147 select CPU_SUPPORTS_HIGHMEM
1148 help
1149 Choose this option to build a kernel for release 2 or later of the
1150 MIPS32 architecture. Most modern embedded systems with a 32-bit
1151 MIPS processor are based on a MIPS32 processor. If you know the
1152 specific type of processor in your system, choose those that one
1153 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1154
1155 config CPU_MIPS64_R1
1156 bool "MIPS64 Release 1"
1157 depends on SYS_HAS_CPU_MIPS64_R1
1158 select CPU_HAS_PREFETCH
1159 select CPU_SUPPORTS_32BIT_KERNEL
1160 select CPU_SUPPORTS_64BIT_KERNEL
1161 select CPU_SUPPORTS_HIGHMEM
1162 select CPU_SUPPORTS_HUGEPAGES
1163 help
1164 Choose this option to build a kernel for release 1 or later of the
1165 MIPS64 architecture. Many modern embedded systems with a 64-bit
1166 MIPS processor are based on a MIPS64 processor. If you know the
1167 specific type of processor in your system, choose those that one
1168 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1169 Release 2 of the MIPS64 architecture is available since several
1170 years so chances are you even have a MIPS64 Release 2 processor
1171 in which case you should choose CPU_MIPS64_R2 instead for better
1172 performance.
1173
1174 config CPU_MIPS64_R2
1175 bool "MIPS64 Release 2"
1176 depends on SYS_HAS_CPU_MIPS64_R2
1177 select CPU_HAS_PREFETCH
1178 select CPU_SUPPORTS_32BIT_KERNEL
1179 select CPU_SUPPORTS_64BIT_KERNEL
1180 select CPU_SUPPORTS_HIGHMEM
1181 select CPU_SUPPORTS_HUGEPAGES
1182 help
1183 Choose this option to build a kernel for release 2 or later of the
1184 MIPS64 architecture. Many modern embedded systems with a 64-bit
1185 MIPS processor are based on a MIPS64 processor. If you know the
1186 specific type of processor in your system, choose those that one
1187 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1188
1189 config CPU_R3000
1190 bool "R3000"
1191 depends on SYS_HAS_CPU_R3000
1192 select CPU_HAS_WB
1193 select CPU_SUPPORTS_32BIT_KERNEL
1194 select CPU_SUPPORTS_HIGHMEM
1195 help
1196 Please make sure to pick the right CPU type. Linux/MIPS is not
1197 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1198 *not* work on R4000 machines and vice versa. However, since most
1199 of the supported machines have an R4000 (or similar) CPU, R4x00
1200 might be a safe bet. If the resulting kernel does not work,
1201 try to recompile with R3000.
1202
1203 config CPU_TX39XX
1204 bool "R39XX"
1205 depends on SYS_HAS_CPU_TX39XX
1206 select CPU_SUPPORTS_32BIT_KERNEL
1207
1208 config CPU_VR41XX
1209 bool "R41xx"
1210 depends on SYS_HAS_CPU_VR41XX
1211 select CPU_SUPPORTS_32BIT_KERNEL
1212 select CPU_SUPPORTS_64BIT_KERNEL
1213 help
1214 The options selects support for the NEC VR4100 series of processors.
1215 Only choose this option if you have one of these processors as a
1216 kernel built with this option will not run on any other type of
1217 processor or vice versa.
1218
1219 config CPU_R4300
1220 bool "R4300"
1221 depends on SYS_HAS_CPU_R4300
1222 select CPU_SUPPORTS_32BIT_KERNEL
1223 select CPU_SUPPORTS_64BIT_KERNEL
1224 help
1225 MIPS Technologies R4300-series processors.
1226
1227 config CPU_R4X00
1228 bool "R4x00"
1229 depends on SYS_HAS_CPU_R4X00
1230 select CPU_SUPPORTS_32BIT_KERNEL
1231 select CPU_SUPPORTS_64BIT_KERNEL
1232 help
1233 MIPS Technologies R4000-series processors other than 4300, including
1234 the R4000, R4400, R4600, and 4700.
1235
1236 config CPU_TX49XX
1237 bool "R49XX"
1238 depends on SYS_HAS_CPU_TX49XX
1239 select CPU_HAS_PREFETCH
1240 select CPU_SUPPORTS_32BIT_KERNEL
1241 select CPU_SUPPORTS_64BIT_KERNEL
1242
1243 config CPU_R5000
1244 bool "R5000"
1245 depends on SYS_HAS_CPU_R5000
1246 select CPU_SUPPORTS_32BIT_KERNEL
1247 select CPU_SUPPORTS_64BIT_KERNEL
1248 help
1249 MIPS Technologies R5000-series processors other than the Nevada.
1250
1251 config CPU_R5432
1252 bool "R5432"
1253 depends on SYS_HAS_CPU_R5432
1254 select CPU_SUPPORTS_32BIT_KERNEL
1255 select CPU_SUPPORTS_64BIT_KERNEL
1256
1257 config CPU_R5500
1258 bool "R5500"
1259 depends on SYS_HAS_CPU_R5500
1260 select CPU_SUPPORTS_32BIT_KERNEL
1261 select CPU_SUPPORTS_64BIT_KERNEL
1262 select CPU_SUPPORTS_HUGEPAGES
1263 help
1264 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1265 instruction set.
1266
1267 config CPU_R6000
1268 bool "R6000"
1269 depends on EXPERIMENTAL
1270 depends on SYS_HAS_CPU_R6000
1271 select CPU_SUPPORTS_32BIT_KERNEL
1272 help
1273 MIPS Technologies R6000 and R6000A series processors. Note these
1274 processors are extremely rare and the support for them is incomplete.
1275
1276 config CPU_NEVADA
1277 bool "RM52xx"
1278 depends on SYS_HAS_CPU_NEVADA
1279 select CPU_SUPPORTS_32BIT_KERNEL
1280 select CPU_SUPPORTS_64BIT_KERNEL
1281 help
1282 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1283
1284 config CPU_R8000
1285 bool "R8000"
1286 depends on EXPERIMENTAL
1287 depends on SYS_HAS_CPU_R8000
1288 select CPU_HAS_PREFETCH
1289 select CPU_SUPPORTS_64BIT_KERNEL
1290 help
1291 MIPS Technologies R8000 processors. Note these processors are
1292 uncommon and the support for them is incomplete.
1293
1294 config CPU_R10000
1295 bool "R10000"
1296 depends on SYS_HAS_CPU_R10000
1297 select CPU_HAS_PREFETCH
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_64BIT_KERNEL
1300 select CPU_SUPPORTS_HIGHMEM
1301 help
1302 MIPS Technologies R10000-series processors.
1303
1304 config CPU_RM7000
1305 bool "RM7000"
1306 depends on SYS_HAS_CPU_RM7000
1307 select CPU_HAS_PREFETCH
1308 select CPU_SUPPORTS_32BIT_KERNEL
1309 select CPU_SUPPORTS_64BIT_KERNEL
1310 select CPU_SUPPORTS_HIGHMEM
1311
1312 config CPU_RM9000
1313 bool "RM9000"
1314 depends on SYS_HAS_CPU_RM9000
1315 select CPU_HAS_PREFETCH
1316 select CPU_SUPPORTS_32BIT_KERNEL
1317 select CPU_SUPPORTS_64BIT_KERNEL
1318 select CPU_SUPPORTS_HIGHMEM
1319 select WEAK_ORDERING
1320
1321 config CPU_SB1
1322 bool "SB1"
1323 depends on SYS_HAS_CPU_SB1
1324 select CPU_SUPPORTS_32BIT_KERNEL
1325 select CPU_SUPPORTS_64BIT_KERNEL
1326 select CPU_SUPPORTS_HIGHMEM
1327 select WEAK_ORDERING
1328
1329 config CPU_CAVIUM_OCTEON
1330 bool "Cavium Octeon processor"
1331 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1332 select IRQ_CPU
1333 select IRQ_CPU_OCTEON
1334 select CPU_HAS_PREFETCH
1335 select CPU_SUPPORTS_64BIT_KERNEL
1336 select SYS_SUPPORTS_SMP
1337 select NR_CPUS_DEFAULT_16
1338 select WEAK_ORDERING
1339 select CPU_SUPPORTS_HIGHMEM
1340 select CPU_SUPPORTS_HUGEPAGES
1341 help
1342 The Cavium Octeon processor is a highly integrated chip containing
1343 many ethernet hardware widgets for networking tasks. The processor
1344 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1345 Full details can be found at http://www.caviumnetworks.com.
1346
1347 config CPU_BMIPS3300
1348 bool "BMIPS3300"
1349 depends on SYS_HAS_CPU_BMIPS3300
1350 select DMA_NONCOHERENT
1351 select IRQ_CPU
1352 select SWAP_IO_SPACE
1353 select SYS_SUPPORTS_32BIT_KERNEL
1354 select WEAK_ORDERING
1355 help
1356 Broadcom BMIPS3300 processors.
1357
1358 config CPU_BMIPS4350
1359 bool "BMIPS4350"
1360 depends on SYS_HAS_CPU_BMIPS4350
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select DMA_NONCOHERENT
1363 select IRQ_CPU
1364 select SWAP_IO_SPACE
1365 select SYS_SUPPORTS_SMP
1366 select SYS_SUPPORTS_HOTPLUG_CPU
1367 select WEAK_ORDERING
1368 help
1369 Broadcom BMIPS4350 ("VIPER") processors.
1370
1371 config CPU_BMIPS4380
1372 bool "BMIPS4380"
1373 depends on SYS_HAS_CPU_BMIPS4380
1374 select CPU_SUPPORTS_32BIT_KERNEL
1375 select DMA_NONCOHERENT
1376 select IRQ_CPU
1377 select SWAP_IO_SPACE
1378 select SYS_SUPPORTS_SMP
1379 select SYS_SUPPORTS_HOTPLUG_CPU
1380 select WEAK_ORDERING
1381 help
1382 Broadcom BMIPS4380 processors.
1383
1384 config CPU_BMIPS5000
1385 bool "BMIPS5000"
1386 depends on SYS_HAS_CPU_BMIPS5000
1387 select CPU_SUPPORTS_32BIT_KERNEL
1388 select CPU_SUPPORTS_HIGHMEM
1389 select DMA_NONCOHERENT
1390 select IRQ_CPU
1391 select SWAP_IO_SPACE
1392 select SYS_SUPPORTS_SMP
1393 select SYS_SUPPORTS_HOTPLUG_CPU
1394 select WEAK_ORDERING
1395 help
1396 Broadcom BMIPS5000 processors.
1397
1398 endchoice
1399
1400 if CPU_LOONGSON2F
1401 config CPU_NOP_WORKAROUNDS
1402 bool
1403
1404 config CPU_JUMP_WORKAROUNDS
1405 bool
1406
1407 config CPU_LOONGSON2F_WORKAROUNDS
1408 bool "Loongson 2F Workarounds"
1409 default y
1410 select CPU_NOP_WORKAROUNDS
1411 select CPU_JUMP_WORKAROUNDS
1412 help
1413 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1414 require workarounds. Without workarounds the system may hang
1415 unexpectedly. For more information please refer to the gas
1416 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1417
1418 Loongson 2F03 and later have fixed these issues and no workarounds
1419 are needed. The workarounds have no significant side effect on them
1420 but may decrease the performance of the system so this option should
1421 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1422 systems.
1423
1424 If unsure, please say Y.
1425 endif # CPU_LOONGSON2F
1426
1427 config SYS_SUPPORTS_ZBOOT
1428 bool
1429 select HAVE_KERNEL_GZIP
1430 select HAVE_KERNEL_BZIP2
1431 select HAVE_KERNEL_LZMA
1432 select HAVE_KERNEL_LZO
1433
1434 config SYS_SUPPORTS_ZBOOT_UART16550
1435 bool
1436 select SYS_SUPPORTS_ZBOOT
1437
1438 config CPU_LOONGSON2
1439 bool
1440 select CPU_SUPPORTS_32BIT_KERNEL
1441 select CPU_SUPPORTS_64BIT_KERNEL
1442 select CPU_SUPPORTS_HIGHMEM
1443
1444 config SYS_HAS_CPU_LOONGSON2E
1445 bool
1446
1447 config SYS_HAS_CPU_LOONGSON2F
1448 bool
1449 select CPU_SUPPORTS_CPUFREQ
1450 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1451 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1452
1453 config SYS_HAS_CPU_MIPS32_R1
1454 bool
1455
1456 config SYS_HAS_CPU_MIPS32_R2
1457 bool
1458
1459 config SYS_HAS_CPU_MIPS64_R1
1460 bool
1461
1462 config SYS_HAS_CPU_MIPS64_R2
1463 bool
1464
1465 config SYS_HAS_CPU_R3000
1466 bool
1467
1468 config SYS_HAS_CPU_TX39XX
1469 bool
1470
1471 config SYS_HAS_CPU_VR41XX
1472 bool
1473
1474 config SYS_HAS_CPU_R4300
1475 bool
1476
1477 config SYS_HAS_CPU_R4X00
1478 bool
1479
1480 config SYS_HAS_CPU_TX49XX
1481 bool
1482
1483 config SYS_HAS_CPU_R5000
1484 bool
1485
1486 config SYS_HAS_CPU_R5432
1487 bool
1488
1489 config SYS_HAS_CPU_R5500
1490 bool
1491
1492 config SYS_HAS_CPU_R6000
1493 bool
1494
1495 config SYS_HAS_CPU_NEVADA
1496 bool
1497
1498 config SYS_HAS_CPU_R8000
1499 bool
1500
1501 config SYS_HAS_CPU_R10000
1502 bool
1503
1504 config SYS_HAS_CPU_RM7000
1505 bool
1506
1507 config SYS_HAS_CPU_RM9000
1508 bool
1509
1510 config SYS_HAS_CPU_SB1
1511 bool
1512
1513 config SYS_HAS_CPU_CAVIUM_OCTEON
1514 bool
1515
1516 config SYS_HAS_CPU_BMIPS3300
1517 bool
1518
1519 config SYS_HAS_CPU_BMIPS4350
1520 bool
1521
1522 config SYS_HAS_CPU_BMIPS4380
1523 bool
1524
1525 config SYS_HAS_CPU_BMIPS5000
1526 bool
1527
1528 #
1529 # CPU may reorder R->R, R->W, W->R, W->W
1530 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1531 #
1532 config WEAK_ORDERING
1533 bool
1534
1535 #
1536 # CPU may reorder reads and writes beyond LL/SC
1537 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1538 #
1539 config WEAK_REORDERING_BEYOND_LLSC
1540 bool
1541 endmenu
1542
1543 #
1544 # These two indicate any level of the MIPS32 and MIPS64 architecture
1545 #
1546 config CPU_MIPS32
1547 bool
1548 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1549
1550 config CPU_MIPS64
1551 bool
1552 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1553
1554 #
1555 # These two indicate the revision of the architecture, either Release 1 or Release 2
1556 #
1557 config CPU_MIPSR1
1558 bool
1559 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1560
1561 config CPU_MIPSR2
1562 bool
1563 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1564
1565 config SYS_SUPPORTS_32BIT_KERNEL
1566 bool
1567 config SYS_SUPPORTS_64BIT_KERNEL
1568 bool
1569 config CPU_SUPPORTS_32BIT_KERNEL
1570 bool
1571 config CPU_SUPPORTS_64BIT_KERNEL
1572 bool
1573 config CPU_SUPPORTS_CPUFREQ
1574 bool
1575 config CPU_SUPPORTS_ADDRWINCFG
1576 bool
1577 config CPU_SUPPORTS_HUGEPAGES
1578 bool
1579 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1580 bool
1581 config MIPS_PGD_C0_CONTEXT
1582 bool
1583 default y if 64BIT && CPU_MIPSR2
1584
1585 #
1586 # Set to y for ptrace access to watch registers.
1587 #
1588 config HARDWARE_WATCHPOINTS
1589 bool
1590 default y if CPU_MIPSR1 || CPU_MIPSR2
1591
1592 menu "Kernel type"
1593
1594 choice
1595
1596 prompt "Kernel code model"
1597 help
1598 You should only select this option if you have a workload that
1599 actually benefits from 64-bit processing or if your machine has
1600 large memory. You will only be presented a single option in this
1601 menu if your system does not support both 32-bit and 64-bit kernels.
1602
1603 config 32BIT
1604 bool "32-bit kernel"
1605 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1606 select TRAD_SIGNALS
1607 help
1608 Select this option if you want to build a 32-bit kernel.
1609 config 64BIT
1610 bool "64-bit kernel"
1611 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1612 select HAVE_SYSCALL_WRAPPERS
1613 help
1614 Select this option if you want to build a 64-bit kernel.
1615
1616 endchoice
1617
1618 choice
1619 prompt "Kernel page size"
1620 default PAGE_SIZE_4KB
1621
1622 config PAGE_SIZE_4KB
1623 bool "4kB"
1624 depends on !CPU_LOONGSON2
1625 help
1626 This option select the standard 4kB Linux page size. On some
1627 R3000-family processors this is the only available page size. Using
1628 4kB page size will minimize memory consumption and is therefore
1629 recommended for low memory systems.
1630
1631 config PAGE_SIZE_8KB
1632 bool "8kB"
1633 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1634 help
1635 Using 8kB page size will result in higher performance kernel at
1636 the price of higher memory consumption. This option is available
1637 only on R8000 and cnMIPS processors. Note that you will need a
1638 suitable Linux distribution to support this.
1639
1640 config PAGE_SIZE_16KB
1641 bool "16kB"
1642 depends on !CPU_R3000 && !CPU_TX39XX
1643 help
1644 Using 16kB page size will result in higher performance kernel at
1645 the price of higher memory consumption. This option is available on
1646 all non-R3000 family processors. Note that you will need a suitable
1647 Linux distribution to support this.
1648
1649 config PAGE_SIZE_32KB
1650 bool "32kB"
1651 depends on CPU_CAVIUM_OCTEON
1652 help
1653 Using 32kB page size will result in higher performance kernel at
1654 the price of higher memory consumption. This option is available
1655 only on cnMIPS cores. Note that you will need a suitable Linux
1656 distribution to support this.
1657
1658 config PAGE_SIZE_64KB
1659 bool "64kB"
1660 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1661 help
1662 Using 64kB page size will result in higher performance kernel at
1663 the price of higher memory consumption. This option is available on
1664 all non-R3000 family processor. Not that at the time of this
1665 writing this option is still high experimental.
1666
1667 endchoice
1668
1669 config FORCE_MAX_ZONEORDER
1670 int "Maximum zone order"
1671 range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1672 default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1673 range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1674 default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1675 range 11 64
1676 default "11"
1677 help
1678 The kernel memory allocator divides physically contiguous memory
1679 blocks into "zones", where each zone is a power of two number of
1680 pages. This option selects the largest power of two that the kernel
1681 keeps in the memory allocator. If you need to allocate very large
1682 blocks of physically contiguous memory, then you may need to
1683 increase this value.
1684
1685 This config option is actually maximum order plus one. For example,
1686 a value of 11 means that the largest free memory block is 2^10 pages.
1687
1688 The page size is not necessarily 4KB. Keep this in mind
1689 when choosing a value for this option.
1690
1691 config BOARD_SCACHE
1692 bool
1693
1694 config IP22_CPU_SCACHE
1695 bool
1696 select BOARD_SCACHE
1697
1698 #
1699 # Support for a MIPS32 / MIPS64 style S-caches
1700 #
1701 config MIPS_CPU_SCACHE
1702 bool
1703 select BOARD_SCACHE
1704
1705 config R5000_CPU_SCACHE
1706 bool
1707 select BOARD_SCACHE
1708
1709 config RM7000_CPU_SCACHE
1710 bool
1711 select BOARD_SCACHE
1712
1713 config SIBYTE_DMA_PAGEOPS
1714 bool "Use DMA to clear/copy pages"
1715 depends on CPU_SB1
1716 help
1717 Instead of using the CPU to zero and copy pages, use a Data Mover
1718 channel. These DMA channels are otherwise unused by the standard
1719 SiByte Linux port. Seems to give a small performance benefit.
1720
1721 config CPU_HAS_PREFETCH
1722 bool
1723
1724 choice
1725 prompt "MIPS MT options"
1726
1727 config MIPS_MT_DISABLED
1728 bool "Disable multithreading support."
1729 help
1730 Use this option if your workload can't take advantage of
1731 MIPS hardware multithreading support. On systems that don't have
1732 the option of an MT-enabled processor this option will be the only
1733 option in this menu.
1734
1735 config MIPS_MT_SMP
1736 bool "Use 1 TC on each available VPE for SMP"
1737 depends on SYS_SUPPORTS_MULTITHREADING
1738 select CPU_MIPSR2_IRQ_VI
1739 select CPU_MIPSR2_IRQ_EI
1740 select MIPS_MT
1741 select NR_CPUS_DEFAULT_2
1742 select SMP
1743 select SYS_SUPPORTS_SCHED_SMT if SMP
1744 select SYS_SUPPORTS_SMP
1745 select SMP_UP
1746 help
1747 This is a kernel model which is known a VSMP but lately has been
1748 marketesed into SMVP.
1749 Virtual SMP uses the processor's VPEs to implement virtual
1750 processors. In currently available configuration of the 34K processor
1751 this allows for a dual processor. Both processors will share the same
1752 primary caches; each will obtain the half of the TLB for it's own
1753 exclusive use. For a layman this model can be described as similar to
1754 what Intel calls Hyperthreading.
1755
1756 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1757
1758 config MIPS_MT_SMTC
1759 bool "SMTC: Use all TCs on all VPEs for SMP"
1760 depends on CPU_MIPS32_R2
1761 #depends on CPU_MIPS64_R2 # once there is hardware ...
1762 depends on SYS_SUPPORTS_MULTITHREADING
1763 select CPU_MIPSR2_IRQ_VI
1764 select CPU_MIPSR2_IRQ_EI
1765 select MIPS_MT
1766 select NR_CPUS_DEFAULT_8
1767 select SMP
1768 select SYS_SUPPORTS_SMP
1769 select SMP_UP
1770 help
1771 This is a kernel model which is known a SMTC or lately has been
1772 marketesed into SMVP.
1773 is presenting the available TC's of the core as processors to Linux.
1774 On currently available 34K processors this means a Linux system will
1775 see up to 5 processors. The implementation of the SMTC kernel differs
1776 significantly from VSMP and cannot efficiently coexist in the same
1777 kernel binary so the choice between VSMP and SMTC is a compile time
1778 decision.
1779
1780 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1781
1782 endchoice
1783
1784 config MIPS_MT
1785 bool
1786
1787 config SCHED_SMT
1788 bool "SMT (multithreading) scheduler support"
1789 depends on SYS_SUPPORTS_SCHED_SMT
1790 default n
1791 help
1792 SMT scheduler support improves the CPU scheduler's decision making
1793 when dealing with MIPS MT enabled cores at a cost of slightly
1794 increased overhead in some places. If unsure say N here.
1795
1796 config SYS_SUPPORTS_SCHED_SMT
1797 bool
1798
1799
1800 config SYS_SUPPORTS_MULTITHREADING
1801 bool
1802
1803 config MIPS_MT_FPAFF
1804 bool "Dynamic FPU affinity for FP-intensive threads"
1805 default y
1806 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1807
1808 config MIPS_VPE_LOADER
1809 bool "VPE loader support."
1810 depends on SYS_SUPPORTS_MULTITHREADING
1811 select CPU_MIPSR2_IRQ_VI
1812 select CPU_MIPSR2_IRQ_EI
1813 select MIPS_MT
1814 help
1815 Includes a loader for loading an elf relocatable object
1816 onto another VPE and running it.
1817
1818 config MIPS_MT_SMTC_IM_BACKSTOP
1819 bool "Use per-TC register bits as backstop for inhibited IM bits"
1820 depends on MIPS_MT_SMTC
1821 default n
1822 help
1823 To support multiple TC microthreads acting as "CPUs" within
1824 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1825 during interrupt handling. To support legacy drivers and interrupt
1826 controller management code, SMTC has a "backstop" to track and
1827 if necessary restore the interrupt mask. This has some performance
1828 impact on interrupt service overhead.
1829
1830 config MIPS_MT_SMTC_IRQAFF
1831 bool "Support IRQ affinity API"
1832 depends on MIPS_MT_SMTC
1833 default n
1834 help
1835 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1836 for SMTC Linux kernel. Requires platform support, of which
1837 an example can be found in the MIPS kernel i8259 and Malta
1838 platform code. Adds some overhead to interrupt dispatch, and
1839 should be used only if you know what you are doing.
1840
1841 config MIPS_VPE_LOADER_TOM
1842 bool "Load VPE program into memory hidden from linux"
1843 depends on MIPS_VPE_LOADER
1844 default y
1845 help
1846 The loader can use memory that is present but has been hidden from
1847 Linux using the kernel command line option "mem=xxMB". It's up to
1848 you to ensure the amount you put in the option and the space your
1849 program requires is less or equal to the amount physically present.
1850
1851 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1852 config MIPS_VPE_APSP_API
1853 bool "Enable support for AP/SP API (RTLX)"
1854 depends on MIPS_VPE_LOADER
1855 help
1856
1857 config MIPS_APSP_KSPD
1858 bool "Enable KSPD"
1859 depends on MIPS_VPE_APSP_API
1860 default y
1861 help
1862 KSPD is a kernel daemon that accepts syscall requests from the SP
1863 side, actions them and returns the results. It also handles the
1864 "exit" syscall notifying other kernel modules the SP program is
1865 exiting. You probably want to say yes here.
1866
1867 config MIPS_CMP
1868 bool "MIPS CMP framework support"
1869 depends on SYS_SUPPORTS_MIPS_CMP
1870 select SYNC_R4K
1871 select SYS_SUPPORTS_SMP
1872 select SYS_SUPPORTS_SCHED_SMT if SMP
1873 select WEAK_ORDERING
1874 default n
1875 help
1876 This is a placeholder option for the GCMP work. It will need to
1877 be handled differently...
1878
1879 config SB1_PASS_1_WORKAROUNDS
1880 bool
1881 depends on CPU_SB1_PASS_1
1882 default y
1883
1884 config SB1_PASS_2_WORKAROUNDS
1885 bool
1886 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1887 default y
1888
1889 config SB1_PASS_2_1_WORKAROUNDS
1890 bool
1891 depends on CPU_SB1 && CPU_SB1_PASS_2
1892 default y
1893
1894 config 64BIT_PHYS_ADDR
1895 bool
1896
1897 config ARCH_PHYS_ADDR_T_64BIT
1898 def_bool 64BIT_PHYS_ADDR
1899
1900 config CPU_HAS_SMARTMIPS
1901 depends on SYS_SUPPORTS_SMARTMIPS
1902 bool "Support for the SmartMIPS ASE"
1903 help
1904 SmartMIPS is a extension of the MIPS32 architecture aimed at
1905 increased security at both hardware and software level for
1906 smartcards. Enabling this option will allow proper use of the
1907 SmartMIPS instructions by Linux applications. However a kernel with
1908 this option will not work on a MIPS core without SmartMIPS core. If
1909 you don't know you probably don't have SmartMIPS and should say N
1910 here.
1911
1912 config CPU_HAS_WB
1913 bool
1914
1915 #
1916 # Vectored interrupt mode is an R2 feature
1917 #
1918 config CPU_MIPSR2_IRQ_VI
1919 bool
1920
1921 #
1922 # Extended interrupt mode is an R2 feature
1923 #
1924 config CPU_MIPSR2_IRQ_EI
1925 bool
1926
1927 config CPU_HAS_SYNC
1928 bool
1929 depends on !CPU_R3000
1930 default y
1931
1932 config GENERIC_CLOCKEVENTS_BROADCAST
1933 bool
1934
1935 #
1936 # CPU non-features
1937 #
1938 config CPU_DADDI_WORKAROUNDS
1939 bool
1940
1941 config CPU_R4000_WORKAROUNDS
1942 bool
1943 select CPU_R4400_WORKAROUNDS
1944
1945 config CPU_R4400_WORKAROUNDS
1946 bool
1947
1948 #
1949 # - Highmem only makes sense for the 32-bit kernel.
1950 # - The current highmem code will only work properly on physically indexed
1951 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1952 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1953 # moment we protect the user and offer the highmem option only on machines
1954 # where it's known to be safe. This will not offer highmem on a few systems
1955 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1956 # indexed CPUs but we're playing safe.
1957 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1958 # know they might have memory configurations that could make use of highmem
1959 # support.
1960 #
1961 config HIGHMEM
1962 bool "High Memory Support"
1963 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1964
1965 config CPU_SUPPORTS_HIGHMEM
1966 bool
1967
1968 config SYS_SUPPORTS_HIGHMEM
1969 bool
1970
1971 config SYS_SUPPORTS_SMARTMIPS
1972 bool
1973
1974 config ARCH_FLATMEM_ENABLE
1975 def_bool y
1976 depends on !NUMA && !CPU_LOONGSON2
1977
1978 config ARCH_DISCONTIGMEM_ENABLE
1979 bool
1980 default y if SGI_IP27
1981 help
1982 Say Y to support efficient handling of discontiguous physical memory,
1983 for architectures which are either NUMA (Non-Uniform Memory Access)
1984 or have huge holes in the physical address space for other reasons.
1985 See <file:Documentation/vm/numa> for more.
1986
1987 config ARCH_POPULATES_NODE_MAP
1988 def_bool y
1989
1990 config ARCH_SPARSEMEM_ENABLE
1991 bool
1992 select SPARSEMEM_STATIC
1993
1994 config NUMA
1995 bool "NUMA Support"
1996 depends on SYS_SUPPORTS_NUMA
1997 help
1998 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1999 Access). This option improves performance on systems with more
2000 than two nodes; on two node systems it is generally better to
2001 leave it disabled; on single node systems disable this option
2002 disabled.
2003
2004 config SYS_SUPPORTS_NUMA
2005 bool
2006
2007 config NODES_SHIFT
2008 int
2009 default "6"
2010 depends on NEED_MULTIPLE_NODES
2011
2012 config HW_PERF_EVENTS
2013 bool "Enable hardware performance counter support for perf events"
2014 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32
2015 default y
2016 help
2017 Enable hardware performance counter support for perf events. If
2018 disabled, perf events will use software events only.
2019
2020 source "mm/Kconfig"
2021
2022 config SMP
2023 bool "Multi-Processing support"
2024 depends on SYS_SUPPORTS_SMP
2025 select IRQ_PER_CPU
2026 select USE_GENERIC_SMP_HELPERS
2027 help
2028 This enables support for systems with more than one CPU. If you have
2029 a system with only one CPU, like most personal computers, say N. If
2030 you have a system with more than one CPU, say Y.
2031
2032 If you say N here, the kernel will run on single and multiprocessor
2033 machines, but will use only one CPU of a multiprocessor machine. If
2034 you say Y here, the kernel will run on many, but not all,
2035 singleprocessor machines. On a singleprocessor machine, the kernel
2036 will run faster if you say N here.
2037
2038 People using multiprocessor machines who say Y here should also say
2039 Y to "Enhanced Real Time Clock Support", below.
2040
2041 See also the SMP-HOWTO available at
2042 <http://www.tldp.org/docs.html#howto>.
2043
2044 If you don't know what to do here, say N.
2045
2046 config SMP_UP
2047 bool
2048
2049 config SYS_SUPPORTS_MIPS_CMP
2050 bool
2051
2052 config SYS_SUPPORTS_SMP
2053 bool
2054
2055 config NR_CPUS_DEFAULT_1
2056 bool
2057
2058 config NR_CPUS_DEFAULT_2
2059 bool
2060
2061 config NR_CPUS_DEFAULT_4
2062 bool
2063
2064 config NR_CPUS_DEFAULT_8
2065 bool
2066
2067 config NR_CPUS_DEFAULT_16
2068 bool
2069
2070 config NR_CPUS_DEFAULT_32
2071 bool
2072
2073 config NR_CPUS_DEFAULT_64
2074 bool
2075
2076 config NR_CPUS
2077 int "Maximum number of CPUs (2-64)"
2078 range 1 64 if NR_CPUS_DEFAULT_1
2079 depends on SMP
2080 default "1" if NR_CPUS_DEFAULT_1
2081 default "2" if NR_CPUS_DEFAULT_2
2082 default "4" if NR_CPUS_DEFAULT_4
2083 default "8" if NR_CPUS_DEFAULT_8
2084 default "16" if NR_CPUS_DEFAULT_16
2085 default "32" if NR_CPUS_DEFAULT_32
2086 default "64" if NR_CPUS_DEFAULT_64
2087 help
2088 This allows you to specify the maximum number of CPUs which this
2089 kernel will support. The maximum supported value is 32 for 32-bit
2090 kernel and 64 for 64-bit kernels; the minimum value which makes
2091 sense is 1 for Qemu (useful only for kernel debugging purposes)
2092 and 2 for all others.
2093
2094 This is purely to save memory - each supported CPU adds
2095 approximately eight kilobytes to the kernel image. For best
2096 performance should round up your number of processors to the next
2097 power of two.
2098
2099 source "kernel/time/Kconfig"
2100
2101 #
2102 # Timer Interrupt Frequency Configuration
2103 #
2104
2105 choice
2106 prompt "Timer frequency"
2107 default HZ_250
2108 help
2109 Allows the configuration of the timer frequency.
2110
2111 config HZ_48
2112 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2113
2114 config HZ_100
2115 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2116
2117 config HZ_128
2118 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2119
2120 config HZ_250
2121 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2122
2123 config HZ_256
2124 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2125
2126 config HZ_1000
2127 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2128
2129 config HZ_1024
2130 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2131
2132 endchoice
2133
2134 config SYS_SUPPORTS_48HZ
2135 bool
2136
2137 config SYS_SUPPORTS_100HZ
2138 bool
2139
2140 config SYS_SUPPORTS_128HZ
2141 bool
2142
2143 config SYS_SUPPORTS_250HZ
2144 bool
2145
2146 config SYS_SUPPORTS_256HZ
2147 bool
2148
2149 config SYS_SUPPORTS_1000HZ
2150 bool
2151
2152 config SYS_SUPPORTS_1024HZ
2153 bool
2154
2155 config SYS_SUPPORTS_ARBIT_HZ
2156 bool
2157 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2158 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2159 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2160 !SYS_SUPPORTS_1024HZ
2161
2162 config HZ
2163 int
2164 default 48 if HZ_48
2165 default 100 if HZ_100
2166 default 128 if HZ_128
2167 default 250 if HZ_250
2168 default 256 if HZ_256
2169 default 1000 if HZ_1000
2170 default 1024 if HZ_1024
2171
2172 source "kernel/Kconfig.preempt"
2173
2174 config MIPS_INSANE_LARGE
2175 bool "Support for large 64-bit configurations"
2176 depends on CPU_R10000 && 64BIT
2177 help
2178 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2179 previous 64-bit processors which only supported 40 bit / 1TB. If you
2180 need processes of more than 1TB virtual address space, say Y here.
2181 This will result in additional memory usage, so it is not
2182 recommended for normal users.
2183
2184 config KEXEC
2185 bool "Kexec system call (EXPERIMENTAL)"
2186 depends on EXPERIMENTAL
2187 help
2188 kexec is a system call that implements the ability to shutdown your
2189 current kernel, and to start another kernel. It is like a reboot
2190 but it is independent of the system firmware. And like a reboot
2191 you can start any kernel with it, not just Linux.
2192
2193 The name comes from the similarity to the exec system call.
2194
2195 It is an ongoing process to be certain the hardware in a machine
2196 is properly shutdown, so do not be surprised if this code does not
2197 initially work for you. It may help to enable device hotplugging
2198 support. As of this writing the exact hardware interface is
2199 strongly in flux, so no good recommendation can be made.
2200
2201 config SECCOMP
2202 bool "Enable seccomp to safely compute untrusted bytecode"
2203 depends on PROC_FS
2204 default y
2205 help
2206 This kernel feature is useful for number crunching applications
2207 that may need to compute untrusted bytecode during their
2208 execution. By using pipes or other transports made available to
2209 the process as file descriptors supporting the read/write
2210 syscalls, it's possible to isolate those applications in
2211 their own address space using seccomp. Once seccomp is
2212 enabled via /proc/<pid>/seccomp, it cannot be disabled
2213 and the task is only allowed to execute a few safe syscalls
2214 defined by each seccomp mode.
2215
2216 If unsure, say Y. Only embedded should say N here.
2217
2218 config USE_OF
2219 bool "Flattened Device Tree support"
2220 select OF
2221 select OF_EARLY_FLATTREE
2222 help
2223 Include support for flattened device tree machine descriptions.
2224
2225 endmenu
2226
2227 config LOCKDEP_SUPPORT
2228 bool
2229 default y
2230
2231 config STACKTRACE_SUPPORT
2232 bool
2233 default y
2234
2235 source "init/Kconfig"
2236
2237 source "kernel/Kconfig.freezer"
2238
2239 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2240
2241 config HW_HAS_EISA
2242 bool
2243 config HW_HAS_PCI
2244 bool
2245
2246 config PCI
2247 bool "Support for PCI controller"
2248 depends on HW_HAS_PCI
2249 select PCI_DOMAINS
2250 help
2251 Find out whether you have a PCI motherboard. PCI is the name of a
2252 bus system, i.e. the way the CPU talks to the other stuff inside
2253 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2254 say Y, otherwise N.
2255
2256 config PCI_DOMAINS
2257 bool
2258
2259 source "drivers/pci/Kconfig"
2260
2261 #
2262 # ISA support is now enabled via select. Too many systems still have the one
2263 # or other ISA chip on the board that users don't know about so don't expect
2264 # users to choose the right thing ...
2265 #
2266 config ISA
2267 bool
2268
2269 config EISA
2270 bool "EISA support"
2271 depends on HW_HAS_EISA
2272 select ISA
2273 select GENERIC_ISA_DMA
2274 ---help---
2275 The Extended Industry Standard Architecture (EISA) bus was
2276 developed as an open alternative to the IBM MicroChannel bus.
2277
2278 The EISA bus provided some of the features of the IBM MicroChannel
2279 bus while maintaining backward compatibility with cards made for
2280 the older ISA bus. The EISA bus saw limited use between 1988 and
2281 1995 when it was made obsolete by the PCI bus.
2282
2283 Say Y here if you are building a kernel for an EISA-based machine.
2284
2285 Otherwise, say N.
2286
2287 source "drivers/eisa/Kconfig"
2288
2289 config TC
2290 bool "TURBOchannel support"
2291 depends on MACH_DECSTATION
2292 help
2293 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2294 processors. TURBOchannel programming specifications are available
2295 at:
2296 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2297 and:
2298 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2299 Linux driver support status is documented at:
2300 <http://www.linux-mips.org/wiki/DECstation>
2301
2302 #config ACCESSBUS
2303 # bool "Access.Bus support"
2304 # depends on TC
2305
2306 config MMU
2307 bool
2308 default y
2309
2310 config I8253
2311 bool
2312 select MIPS_EXTERNAL_TIMER
2313
2314 config ZONE_DMA32
2315 bool
2316
2317 source "drivers/pcmcia/Kconfig"
2318
2319 source "drivers/pci/hotplug/Kconfig"
2320
2321 endmenu
2322
2323 menu "Executable file formats"
2324
2325 source "fs/Kconfig.binfmt"
2326
2327 config TRAD_SIGNALS
2328 bool
2329
2330 config MIPS32_COMPAT
2331 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2332 depends on 64BIT
2333 help
2334 Select this option if you want Linux/MIPS 32-bit binary
2335 compatibility. Since all software available for Linux/MIPS is
2336 currently 32-bit you should say Y here.
2337
2338 config COMPAT
2339 bool
2340 depends on MIPS32_COMPAT
2341 default y
2342
2343 config SYSVIPC_COMPAT
2344 bool
2345 depends on COMPAT && SYSVIPC
2346 default y
2347
2348 config MIPS32_O32
2349 bool "Kernel support for o32 binaries"
2350 depends on MIPS32_COMPAT
2351 help
2352 Select this option if you want to run o32 binaries. These are pure
2353 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2354 existing binaries are in this format.
2355
2356 If unsure, say Y.
2357
2358 config MIPS32_N32
2359 bool "Kernel support for n32 binaries"
2360 depends on MIPS32_COMPAT
2361 help
2362 Select this option if you want to run n32 binaries. These are
2363 64-bit binaries using 32-bit quantities for addressing and certain
2364 data that would normally be 64-bit. They are used in special
2365 cases.
2366
2367 If unsure, say N.
2368
2369 config BINFMT_ELF32
2370 bool
2371 default y if MIPS32_O32 || MIPS32_N32
2372
2373 endmenu
2374
2375 menu "Power management options"
2376
2377 config ARCH_HIBERNATION_POSSIBLE
2378 def_bool y
2379 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2380
2381 config ARCH_SUSPEND_POSSIBLE
2382 def_bool y
2383 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2384
2385 source "kernel/power/Kconfig"
2386
2387 endmenu
2388
2389 source "arch/mips/kernel/cpufreq/Kconfig"
2390
2391 source "net/Kconfig"
2392
2393 source "drivers/Kconfig"
2394
2395 source "fs/Kconfig"
2396
2397 source "arch/mips/Kconfig.debug"
2398
2399 source "security/Kconfig"
2400
2401 source "crypto/Kconfig"
2402
2403 source "lib/Kconfig"
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