MIPS: Add initial support for the Atheros AR71XX/AR724X/AR931X SoCs
[deliverable/linux.git] / arch / mips / Kconfig
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CommitLineData
1config 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 select HAVE_ARCH_JUMP_LABEL
25
26menu "Machine selection"
27
28config ZONE_DMA
29 bool
30
31choice
32 prompt "System type"
33 default SGI_IP22
34
35config MIPS_ALCHEMY
36 bool "Alchemy processor based machines"
37 select 64BIT_PHYS_ADDR
38 select CEVT_R4K_LIB
39 select CSRC_R4K_LIB
40 select IRQ_CPU
41 select SYS_HAS_CPU_MIPS32_R1
42 select SYS_SUPPORTS_32BIT_KERNEL
43 select SYS_SUPPORTS_APM_EMULATION
44 select GENERIC_GPIO
45 select ARCH_WANT_OPTIONAL_GPIOLIB
46 select SYS_SUPPORTS_ZBOOT
47
48config AR7
49 bool "Texas Instruments AR7"
50 select BOOT_ELF32
51 select DMA_NONCOHERENT
52 select CEVT_R4K
53 select CSRC_R4K
54 select IRQ_CPU
55 select NO_EXCEPT_FILL
56 select SWAP_IO_SPACE
57 select SYS_HAS_CPU_MIPS32_R1
58 select SYS_HAS_EARLY_PRINTK
59 select SYS_SUPPORTS_32BIT_KERNEL
60 select SYS_SUPPORTS_LITTLE_ENDIAN
61 select SYS_SUPPORTS_ZBOOT_UART16550
62 select ARCH_REQUIRE_GPIOLIB
63 select GCD
64 select VLYNQ
65 help
66 Support for the Texas Instruments AR7 System-on-a-Chip
67 family: TNETD7100, 7200 and 7300.
68
69config ATH79
70 bool "Atheros AR71XX/AR724X/AR913X based boards"
71 select BOOT_RAW
72 select CEVT_R4K
73 select CSRC_R4K
74 select DMA_NONCOHERENT
75 select IRQ_CPU
76 select SYS_HAS_CPU_MIPS32_R2
77 select SYS_HAS_EARLY_PRINTK
78 select SYS_SUPPORTS_32BIT_KERNEL
79 select SYS_SUPPORTS_BIG_ENDIAN
80 help
81 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
82
83config BCM47XX
84 bool "Broadcom BCM47XX based boards"
85 select CEVT_R4K
86 select CSRC_R4K
87 select DMA_NONCOHERENT
88 select HW_HAS_PCI
89 select IRQ_CPU
90 select SYS_HAS_CPU_MIPS32_R1
91 select SYS_SUPPORTS_32BIT_KERNEL
92 select SYS_SUPPORTS_LITTLE_ENDIAN
93 select SSB
94 select SSB_DRIVER_MIPS
95 select SSB_DRIVER_EXTIF
96 select SSB_EMBEDDED
97 select SSB_B43_PCI_BRIDGE if PCI
98 select SSB_PCICORE_HOSTMODE if PCI
99 select GENERIC_GPIO
100 select SYS_HAS_EARLY_PRINTK
101 select CFE
102 help
103 Support for BCM47XX based boards
104
105config BCM63XX
106 bool "Broadcom BCM63XX based boards"
107 select CEVT_R4K
108 select CSRC_R4K
109 select DMA_NONCOHERENT
110 select IRQ_CPU
111 select SYS_HAS_CPU_MIPS32_R1
112 select SYS_SUPPORTS_32BIT_KERNEL
113 select SYS_SUPPORTS_BIG_ENDIAN
114 select SYS_HAS_EARLY_PRINTK
115 select SWAP_IO_SPACE
116 select ARCH_REQUIRE_GPIOLIB
117 help
118 Support for BCM63XX based boards
119
120config MIPS_COBALT
121 bool "Cobalt Server"
122 select CEVT_R4K
123 select CSRC_R4K
124 select CEVT_GT641XX
125 select DMA_NONCOHERENT
126 select HW_HAS_PCI
127 select I8253
128 select I8259
129 select IRQ_CPU
130 select IRQ_GT641XX
131 select PCI_GT64XXX_PCI0
132 select PCI
133 select SYS_HAS_CPU_NEVADA
134 select SYS_HAS_EARLY_PRINTK
135 select SYS_SUPPORTS_32BIT_KERNEL
136 select SYS_SUPPORTS_64BIT_KERNEL
137 select SYS_SUPPORTS_LITTLE_ENDIAN
138
139config MACH_DECSTATION
140 bool "DECstations"
141 select BOOT_ELF32
142 select CEVT_DS1287
143 select CEVT_R4K
144 select CSRC_IOASIC
145 select CSRC_R4K
146 select CPU_DADDI_WORKAROUNDS if 64BIT
147 select CPU_R4000_WORKAROUNDS if 64BIT
148 select CPU_R4400_WORKAROUNDS if 64BIT
149 select DMA_NONCOHERENT
150 select NO_IOPORT
151 select IRQ_CPU
152 select SYS_HAS_CPU_R3000
153 select SYS_HAS_CPU_R4X00
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
156 select SYS_SUPPORTS_LITTLE_ENDIAN
157 select SYS_SUPPORTS_128HZ
158 select SYS_SUPPORTS_256HZ
159 select SYS_SUPPORTS_1024HZ
160 help
161 This enables support for DEC's MIPS based workstations. For details
162 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
163 DECstation porting pages on <http://decstation.unix-ag.org/>.
164
165 If you have one of the following DECstation Models you definitely
166 want to choose R4xx0 for the CPU Type:
167
168 DECstation 5000/50
169 DECstation 5000/150
170 DECstation 5000/260
171 DECsystem 5900/260
172
173 otherwise choose R3000.
174
175config MACH_JAZZ
176 bool "Jazz family of machines"
177 select ARC
178 select ARC32
179 select ARCH_MAY_HAVE_PC_FDC
180 select CEVT_R4K
181 select CSRC_R4K
182 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
183 select GENERIC_ISA_DMA
184 select IRQ_CPU
185 select I8253
186 select I8259
187 select ISA
188 select SYS_HAS_CPU_R4X00
189 select SYS_SUPPORTS_32BIT_KERNEL
190 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
191 select SYS_SUPPORTS_100HZ
192 help
193 This a family of machines based on the MIPS R4030 chipset which was
194 used by several vendors to build RISC/os and Windows NT workstations.
195 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
196 Olivetti M700-10 workstations.
197
198config MACH_JZ4740
199 bool "Ingenic JZ4740 based machines"
200 select SYS_HAS_CPU_MIPS32_R1
201 select SYS_SUPPORTS_32BIT_KERNEL
202 select SYS_SUPPORTS_LITTLE_ENDIAN
203 select DMA_NONCOHERENT
204 select IRQ_CPU
205 select GENERIC_GPIO
206 select ARCH_REQUIRE_GPIOLIB
207 select SYS_HAS_EARLY_PRINTK
208 select HAVE_PWM
209
210config LASAT
211 bool "LASAT Networks platforms"
212 select CEVT_R4K
213 select CSRC_R4K
214 select DMA_NONCOHERENT
215 select SYS_HAS_EARLY_PRINTK
216 select HW_HAS_PCI
217 select IRQ_CPU
218 select PCI_GT64XXX_PCI0
219 select MIPS_NILE4
220 select R5000_CPU_SCACHE
221 select SYS_HAS_CPU_R5000
222 select SYS_SUPPORTS_32BIT_KERNEL
223 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
224 select SYS_SUPPORTS_LITTLE_ENDIAN
225
226config MACH_LOONGSON
227 bool "Loongson family of machines"
228 select SYS_SUPPORTS_ZBOOT
229 help
230 This enables the support of Loongson family of machines.
231
232 Loongson is a family of general-purpose MIPS-compatible CPUs.
233 developed at Institute of Computing Technology (ICT),
234 Chinese Academy of Sciences (CAS) in the People's Republic
235 of China. The chief architect is Professor Weiwu Hu.
236
237config MIPS_MALTA
238 bool "MIPS Malta board"
239 select ARCH_MAY_HAVE_PC_FDC
240 select BOOT_ELF32
241 select BOOT_RAW
242 select CEVT_R4K
243 select CSRC_R4K
244 select DMA_NONCOHERENT
245 select GENERIC_ISA_DMA
246 select IRQ_CPU
247 select IRQ_GIC
248 select HW_HAS_PCI
249 select I8253
250 select I8259
251 select MIPS_BOARDS_GEN
252 select MIPS_BONITO64
253 select MIPS_CPU_SCACHE
254 select PCI_GT64XXX_PCI0
255 select MIPS_MSC
256 select SWAP_IO_SPACE
257 select SYS_HAS_CPU_MIPS32_R1
258 select SYS_HAS_CPU_MIPS32_R2
259 select SYS_HAS_CPU_MIPS64_R1
260 select SYS_HAS_CPU_NEVADA
261 select SYS_HAS_CPU_RM7000
262 select SYS_HAS_EARLY_PRINTK
263 select SYS_SUPPORTS_32BIT_KERNEL
264 select SYS_SUPPORTS_64BIT_KERNEL
265 select SYS_SUPPORTS_BIG_ENDIAN
266 select SYS_SUPPORTS_LITTLE_ENDIAN
267 select SYS_SUPPORTS_MIPS_CMP
268 select SYS_SUPPORTS_MULTITHREADING
269 select SYS_SUPPORTS_SMARTMIPS
270 select SYS_SUPPORTS_ZBOOT
271 help
272 This enables support for the MIPS Technologies Malta evaluation
273 board.
274
275config MIPS_SIM
276 bool 'MIPS simulator (MIPSsim)'
277 select CEVT_R4K
278 select CSRC_R4K
279 select DMA_NONCOHERENT
280 select SYS_HAS_EARLY_PRINTK
281 select IRQ_CPU
282 select BOOT_RAW
283 select SYS_HAS_CPU_MIPS32_R1
284 select SYS_HAS_CPU_MIPS32_R2
285 select SYS_HAS_EARLY_PRINTK
286 select SYS_SUPPORTS_32BIT_KERNEL
287 select SYS_SUPPORTS_BIG_ENDIAN
288 select SYS_SUPPORTS_MULTITHREADING
289 select SYS_SUPPORTS_LITTLE_ENDIAN
290 help
291 This option enables support for MIPS Technologies MIPSsim software
292 emulator.
293
294config NEC_MARKEINS
295 bool "NEC EMMA2RH Mark-eins board"
296 select SOC_EMMA2RH
297 select HW_HAS_PCI
298 help
299 This enables support for the NEC Electronics Mark-eins boards.
300
301config MACH_VR41XX
302 bool "NEC VR4100 series based machines"
303 select CEVT_R4K
304 select CSRC_R4K
305 select SYS_HAS_CPU_VR41XX
306 select ARCH_REQUIRE_GPIOLIB
307
308config NXP_STB220
309 bool "NXP STB220 board"
310 select SOC_PNX833X
311 help
312 Support for NXP Semiconductors STB220 Development Board.
313
314config NXP_STB225
315 bool "NXP 225 board"
316 select SOC_PNX833X
317 select SOC_PNX8335
318 help
319 Support for NXP Semiconductors STB225 Development Board.
320
321config PNX8550_JBS
322 bool "NXP PNX8550 based JBS board"
323 select PNX8550
324 select SYS_SUPPORTS_LITTLE_ENDIAN
325
326config PNX8550_STB810
327 bool "NXP PNX8550 based STB810 board"
328 select PNX8550
329 select SYS_SUPPORTS_LITTLE_ENDIAN
330
331config PMC_MSP
332 bool "PMC-Sierra MSP chipsets"
333 depends on EXPERIMENTAL
334 select DMA_NONCOHERENT
335 select SWAP_IO_SPACE
336 select NO_EXCEPT_FILL
337 select BOOT_RAW
338 select SYS_HAS_CPU_MIPS32_R1
339 select SYS_HAS_CPU_MIPS32_R2
340 select SYS_SUPPORTS_32BIT_KERNEL
341 select SYS_SUPPORTS_BIG_ENDIAN
342 select IRQ_CPU
343 select SERIAL_8250
344 select SERIAL_8250_CONSOLE
345 help
346 This adds support for the PMC-Sierra family of Multi-Service
347 Processor System-On-A-Chips. These parts include a number
348 of integrated peripherals, interfaces and DSPs in addition to
349 a variety of MIPS cores.
350
351config PMC_YOSEMITE
352 bool "PMC-Sierra Yosemite eval board"
353 select CEVT_R4K
354 select CSRC_R4K
355 select DMA_COHERENT
356 select HW_HAS_PCI
357 select IRQ_CPU
358 select IRQ_CPU_RM7K
359 select IRQ_CPU_RM9K
360 select SWAP_IO_SPACE
361 select SYS_HAS_CPU_RM9000
362 select SYS_HAS_EARLY_PRINTK
363 select SYS_SUPPORTS_32BIT_KERNEL
364 select SYS_SUPPORTS_64BIT_KERNEL
365 select SYS_SUPPORTS_BIG_ENDIAN
366 select SYS_SUPPORTS_HIGHMEM
367 select SYS_SUPPORTS_SMP
368 help
369 Yosemite is an evaluation board for the RM9000x2 processor
370 manufactured by PMC-Sierra.
371
372config POWERTV
373 bool "Cisco PowerTV"
374 select BOOT_ELF32
375 select CEVT_R4K
376 select CPU_MIPSR2_IRQ_VI
377 select CPU_MIPSR2_IRQ_EI
378 select CSRC_POWERTV
379 select DMA_NONCOHERENT
380 select HW_HAS_PCI
381 select SYS_HAS_EARLY_PRINTK
382 select SYS_HAS_CPU_MIPS32_R2
383 select SYS_SUPPORTS_32BIT_KERNEL
384 select SYS_SUPPORTS_BIG_ENDIAN
385 select SYS_SUPPORTS_HIGHMEM
386 select USB_OHCI_LITTLE_ENDIAN
387 help
388 This enables support for the Cisco PowerTV Platform.
389
390config SGI_IP22
391 bool "SGI IP22 (Indy/Indigo2)"
392 select ARC
393 select ARC32
394 select BOOT_ELF32
395 select CEVT_R4K
396 select CSRC_R4K
397 select DEFAULT_SGI_PARTITION
398 select DMA_NONCOHERENT
399 select HW_HAS_EISA
400 select I8253
401 select I8259
402 select IP22_CPU_SCACHE
403 select IRQ_CPU
404 select GENERIC_ISA_DMA_SUPPORT_BROKEN
405 select SGI_HAS_I8042
406 select SGI_HAS_INDYDOG
407 select SGI_HAS_HAL2
408 select SGI_HAS_SEEQ
409 select SGI_HAS_WD93
410 select SGI_HAS_ZILOG
411 select SWAP_IO_SPACE
412 select SYS_HAS_CPU_R4X00
413 select SYS_HAS_CPU_R5000
414 #
415 # Disable EARLY_PRINTK for now since it leads to overwritten prom
416 # memory during early boot on some machines.
417 #
418 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
419 # for a more details discussion
420 #
421 # select SYS_HAS_EARLY_PRINTK
422 select SYS_SUPPORTS_32BIT_KERNEL
423 select SYS_SUPPORTS_64BIT_KERNEL
424 select SYS_SUPPORTS_BIG_ENDIAN
425 help
426 This are the SGI Indy, Challenge S and Indigo2, as well as certain
427 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
428 that runs on these, say Y here.
429
430config SGI_IP27
431 bool "SGI IP27 (Origin200/2000)"
432 select ARC
433 select ARC64
434 select BOOT_ELF64
435 select DEFAULT_SGI_PARTITION
436 select DMA_COHERENT
437 select SYS_HAS_EARLY_PRINTK
438 select HW_HAS_PCI
439 select NR_CPUS_DEFAULT_64
440 select SYS_HAS_CPU_R10000
441 select SYS_SUPPORTS_64BIT_KERNEL
442 select SYS_SUPPORTS_BIG_ENDIAN
443 select SYS_SUPPORTS_NUMA
444 select SYS_SUPPORTS_SMP
445 help
446 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
447 workstations. To compile a Linux kernel that runs on these, say Y
448 here.
449
450config SGI_IP28
451 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
452 depends on EXPERIMENTAL
453 select ARC
454 select ARC64
455 select BOOT_ELF64
456 select CEVT_R4K
457 select CSRC_R4K
458 select DEFAULT_SGI_PARTITION
459 select DMA_NONCOHERENT
460 select GENERIC_ISA_DMA_SUPPORT_BROKEN
461 select IRQ_CPU
462 select HW_HAS_EISA
463 select I8253
464 select I8259
465 select SGI_HAS_I8042
466 select SGI_HAS_INDYDOG
467 select SGI_HAS_HAL2
468 select SGI_HAS_SEEQ
469 select SGI_HAS_WD93
470 select SGI_HAS_ZILOG
471 select SWAP_IO_SPACE
472 select SYS_HAS_CPU_R10000
473 #
474 # Disable EARLY_PRINTK for now since it leads to overwritten prom
475 # memory during early boot on some machines.
476 #
477 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
478 # for a more details discussion
479 #
480 # select SYS_HAS_EARLY_PRINTK
481 select SYS_SUPPORTS_64BIT_KERNEL
482 select SYS_SUPPORTS_BIG_ENDIAN
483 help
484 This is the SGI Indigo2 with R10000 processor. To compile a Linux
485 kernel that runs on these, say Y here.
486
487config SGI_IP32
488 bool "SGI IP32 (O2)"
489 select ARC
490 select ARC32
491 select BOOT_ELF32
492 select CEVT_R4K
493 select CSRC_R4K
494 select DMA_NONCOHERENT
495 select HW_HAS_PCI
496 select IRQ_CPU
497 select R5000_CPU_SCACHE
498 select RM7000_CPU_SCACHE
499 select SYS_HAS_CPU_R5000
500 select SYS_HAS_CPU_R10000 if BROKEN
501 select SYS_HAS_CPU_RM7000
502 select SYS_HAS_CPU_NEVADA
503 select SYS_SUPPORTS_64BIT_KERNEL
504 select SYS_SUPPORTS_BIG_ENDIAN
505 help
506 If you want this kernel to run on SGI O2 workstation, say Y here.
507
508config SIBYTE_CRHINE
509 bool "Sibyte BCM91120C-CRhine"
510 depends on EXPERIMENTAL
511 select BOOT_ELF32
512 select DMA_COHERENT
513 select SIBYTE_BCM1120
514 select SWAP_IO_SPACE
515 select SYS_HAS_CPU_SB1
516 select SYS_SUPPORTS_BIG_ENDIAN
517 select SYS_SUPPORTS_LITTLE_ENDIAN
518
519config SIBYTE_CARMEL
520 bool "Sibyte BCM91120x-Carmel"
521 depends on EXPERIMENTAL
522 select BOOT_ELF32
523 select DMA_COHERENT
524 select SIBYTE_BCM1120
525 select SWAP_IO_SPACE
526 select SYS_HAS_CPU_SB1
527 select SYS_SUPPORTS_BIG_ENDIAN
528 select SYS_SUPPORTS_LITTLE_ENDIAN
529
530config SIBYTE_CRHONE
531 bool "Sibyte BCM91125C-CRhone"
532 depends on EXPERIMENTAL
533 select BOOT_ELF32
534 select DMA_COHERENT
535 select SIBYTE_BCM1125
536 select SWAP_IO_SPACE
537 select SYS_HAS_CPU_SB1
538 select SYS_SUPPORTS_BIG_ENDIAN
539 select SYS_SUPPORTS_HIGHMEM
540 select SYS_SUPPORTS_LITTLE_ENDIAN
541
542config SIBYTE_RHONE
543 bool "Sibyte BCM91125E-Rhone"
544 depends on EXPERIMENTAL
545 select BOOT_ELF32
546 select DMA_COHERENT
547 select SIBYTE_BCM1125H
548 select SWAP_IO_SPACE
549 select SYS_HAS_CPU_SB1
550 select SYS_SUPPORTS_BIG_ENDIAN
551 select SYS_SUPPORTS_LITTLE_ENDIAN
552
553config SIBYTE_SWARM
554 bool "Sibyte BCM91250A-SWARM"
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 select ZONE_DMA32 if 64BIT
566
567config SIBYTE_LITTLESUR
568 bool "Sibyte BCM91250C2-LittleSur"
569 depends on EXPERIMENTAL
570 select BOOT_ELF32
571 select DMA_COHERENT
572 select HAVE_PATA_PLATFORM
573 select NR_CPUS_DEFAULT_2
574 select SIBYTE_SB1250
575 select SWAP_IO_SPACE
576 select SYS_HAS_CPU_SB1
577 select SYS_SUPPORTS_BIG_ENDIAN
578 select SYS_SUPPORTS_HIGHMEM
579 select SYS_SUPPORTS_LITTLE_ENDIAN
580
581config SIBYTE_SENTOSA
582 bool "Sibyte BCM91250E-Sentosa"
583 depends on EXPERIMENTAL
584 select BOOT_ELF32
585 select DMA_COHERENT
586 select NR_CPUS_DEFAULT_2
587 select SIBYTE_SB1250
588 select SWAP_IO_SPACE
589 select SYS_HAS_CPU_SB1
590 select SYS_SUPPORTS_BIG_ENDIAN
591 select SYS_SUPPORTS_LITTLE_ENDIAN
592
593config SIBYTE_BIGSUR
594 bool "Sibyte BCM91480B-BigSur"
595 select BOOT_ELF32
596 select DMA_COHERENT
597 select NR_CPUS_DEFAULT_4
598 select SIBYTE_BCM1x80
599 select SWAP_IO_SPACE
600 select SYS_HAS_CPU_SB1
601 select SYS_SUPPORTS_BIG_ENDIAN
602 select SYS_SUPPORTS_HIGHMEM
603 select SYS_SUPPORTS_LITTLE_ENDIAN
604 select ZONE_DMA32 if 64BIT
605
606config SNI_RM
607 bool "SNI RM200/300/400"
608 select ARC if CPU_LITTLE_ENDIAN
609 select ARC32 if CPU_LITTLE_ENDIAN
610 select SNIPROM if CPU_BIG_ENDIAN
611 select ARCH_MAY_HAVE_PC_FDC
612 select BOOT_ELF32
613 select CEVT_R4K
614 select CSRC_R4K
615 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
616 select DMA_NONCOHERENT
617 select GENERIC_ISA_DMA
618 select HW_HAS_EISA
619 select HW_HAS_PCI
620 select IRQ_CPU
621 select I8253
622 select I8259
623 select ISA
624 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
625 select SYS_HAS_CPU_R4X00
626 select SYS_HAS_CPU_R5000
627 select SYS_HAS_CPU_R10000
628 select R5000_CPU_SCACHE
629 select SYS_HAS_EARLY_PRINTK
630 select SYS_SUPPORTS_32BIT_KERNEL
631 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
632 select SYS_SUPPORTS_BIG_ENDIAN
633 select SYS_SUPPORTS_HIGHMEM
634 select SYS_SUPPORTS_LITTLE_ENDIAN
635 help
636 The SNI RM200/300/400 are MIPS-based machines manufactured by
637 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
638 Technology and now in turn merged with Fujitsu. Say Y here to
639 support this machine type.
640
641config MACH_TX39XX
642 bool "Toshiba TX39 series based machines"
643
644config MACH_TX49XX
645 bool "Toshiba TX49 series based machines"
646
647config MIKROTIK_RB532
648 bool "Mikrotik RB532 boards"
649 select CEVT_R4K
650 select CSRC_R4K
651 select DMA_NONCOHERENT
652 select HW_HAS_PCI
653 select IRQ_CPU
654 select SYS_HAS_CPU_MIPS32_R1
655 select SYS_SUPPORTS_32BIT_KERNEL
656 select SYS_SUPPORTS_LITTLE_ENDIAN
657 select SWAP_IO_SPACE
658 select BOOT_RAW
659 select ARCH_REQUIRE_GPIOLIB
660 help
661 Support the Mikrotik(tm) RouterBoard 532 series,
662 based on the IDT RC32434 SoC.
663
664config WR_PPMC
665 bool "Wind River PPMC board"
666 select CEVT_R4K
667 select CSRC_R4K
668 select IRQ_CPU
669 select BOOT_ELF32
670 select DMA_NONCOHERENT
671 select HW_HAS_PCI
672 select PCI_GT64XXX_PCI0
673 select SWAP_IO_SPACE
674 select SYS_HAS_CPU_MIPS32_R1
675 select SYS_HAS_CPU_MIPS32_R2
676 select SYS_HAS_CPU_MIPS64_R1
677 select SYS_HAS_CPU_NEVADA
678 select SYS_HAS_CPU_RM7000
679 select SYS_SUPPORTS_32BIT_KERNEL
680 select SYS_SUPPORTS_64BIT_KERNEL
681 select SYS_SUPPORTS_BIG_ENDIAN
682 select SYS_SUPPORTS_LITTLE_ENDIAN
683 help
684 This enables support for the Wind River MIPS32 4KC PPMC evaluation
685 board, which is based on GT64120 bridge chip.
686
687config CAVIUM_OCTEON_SIMULATOR
688 bool "Cavium Networks Octeon Simulator"
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_CPU_CAVIUM_OCTEON
697 help
698 The Octeon simulator is software performance model of the Cavium
699 Octeon Processor. It supports simulating Octeon processors on x86
700 hardware.
701
702config CAVIUM_OCTEON_REFERENCE_BOARD
703 bool "Cavium Networks Octeon reference board"
704 select CEVT_R4K
705 select 64BIT_PHYS_ADDR
706 select DMA_COHERENT
707 select SYS_SUPPORTS_64BIT_KERNEL
708 select SYS_SUPPORTS_BIG_ENDIAN
709 select SYS_SUPPORTS_HIGHMEM
710 select SYS_SUPPORTS_HOTPLUG_CPU
711 select SYS_HAS_EARLY_PRINTK
712 select SYS_HAS_CPU_CAVIUM_OCTEON
713 select SWAP_IO_SPACE
714 select HW_HAS_PCI
715 select ARCH_SUPPORTS_MSI
716 select ZONE_DMA32
717 select USB_ARCH_HAS_OHCI
718 select USB_ARCH_HAS_EHCI
719 help
720 This option supports all of the Octeon reference boards from Cavium
721 Networks. It builds a kernel that dynamically determines the Octeon
722 CPU type and supports all known board reference implementations.
723 Some of the supported boards are:
724 EBT3000
725 EBH3000
726 EBH3100
727 Thunder
728 Kodama
729 Hikari
730 Say Y here for most Octeon reference boards.
731
732endchoice
733
734source "arch/mips/alchemy/Kconfig"
735source "arch/mips/ath79/Kconfig"
736source "arch/mips/bcm63xx/Kconfig"
737source "arch/mips/jazz/Kconfig"
738source "arch/mips/jz4740/Kconfig"
739source "arch/mips/lasat/Kconfig"
740source "arch/mips/pmc-sierra/Kconfig"
741source "arch/mips/powertv/Kconfig"
742source "arch/mips/sgi-ip27/Kconfig"
743source "arch/mips/sibyte/Kconfig"
744source "arch/mips/txx9/Kconfig"
745source "arch/mips/vr41xx/Kconfig"
746source "arch/mips/cavium-octeon/Kconfig"
747source "arch/mips/loongson/Kconfig"
748
749endmenu
750
751config RWSEM_GENERIC_SPINLOCK
752 bool
753 default y
754
755config RWSEM_XCHGADD_ALGORITHM
756 bool
757
758config ARCH_HAS_ILOG2_U32
759 bool
760 default n
761
762config ARCH_HAS_ILOG2_U64
763 bool
764 default n
765
766config ARCH_SUPPORTS_OPROFILE
767 bool
768 default y if !MIPS_MT_SMTC
769
770config GENERIC_FIND_NEXT_BIT
771 bool
772 default y
773
774config GENERIC_HWEIGHT
775 bool
776 default y
777
778config GENERIC_CALIBRATE_DELAY
779 bool
780 default y
781
782config GENERIC_CLOCKEVENTS
783 bool
784 default y
785
786config GENERIC_CMOS_UPDATE
787 bool
788 default y
789
790config SCHED_OMIT_FRAME_POINTER
791 bool
792 default y
793
794config GENERIC_HARDIRQS_NO__DO_IRQ
795 def_bool y
796
797#
798# Select some configuration options automatically based on user selections.
799#
800config ARC
801 bool
802
803config ARCH_MAY_HAVE_PC_FDC
804 bool
805
806config BOOT_RAW
807 bool
808
809config CEVT_BCM1480
810 bool
811
812config CEVT_DS1287
813 bool
814
815config CEVT_GT641XX
816 bool
817
818config CEVT_R4K_LIB
819 bool
820
821config CEVT_R4K
822 select CEVT_R4K_LIB
823 bool
824
825config CEVT_SB1250
826 bool
827
828config CEVT_TXX9
829 bool
830
831config CSRC_BCM1480
832 bool
833
834config CSRC_IOASIC
835 bool
836
837config CSRC_POWERTV
838 bool
839
840config CSRC_R4K_LIB
841 bool
842
843config CSRC_R4K
844 select CSRC_R4K_LIB
845 bool
846
847config CSRC_SB1250
848 bool
849
850config GPIO_TXX9
851 select GENERIC_GPIO
852 select ARCH_REQUIRE_GPIOLIB
853 bool
854
855config CFE
856 bool
857
858config DMA_COHERENT
859 bool
860
861config DMA_NONCOHERENT
862 bool
863 select NEED_DMA_MAP_STATE
864
865config NEED_DMA_MAP_STATE
866 bool
867
868config SYS_HAS_EARLY_PRINTK
869 bool
870
871config HOTPLUG_CPU
872 bool "Support for hot-pluggable CPUs"
873 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
874 help
875 Say Y here to allow turning CPUs off and on. CPUs can be
876 controlled through /sys/devices/system/cpu.
877 (Note: power management support will enable this option
878 automatically on SMP systems. )
879 Say N if you want to disable CPU hotplug.
880
881config SYS_SUPPORTS_HOTPLUG_CPU
882 bool
883
884config I8259
885 bool
886
887config MIPS_BONITO64
888 bool
889
890config MIPS_MSC
891 bool
892
893config MIPS_NILE4
894 bool
895
896config MIPS_DISABLE_OBSOLETE_IDE
897 bool
898
899config SYNC_R4K
900 bool
901
902config MIPS_MACHINE
903 def_bool n
904
905config NO_IOPORT
906 def_bool n
907
908config GENERIC_ISA_DMA
909 bool
910 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
911 select ISA_DMA_API
912
913config GENERIC_ISA_DMA_SUPPORT_BROKEN
914 bool
915 select GENERIC_ISA_DMA
916
917config ISA_DMA_API
918 bool
919
920config GENERIC_GPIO
921 bool
922
923#
924# Endianess selection. Sufficiently obscure so many users don't know what to
925# answer,so we try hard to limit the available choices. Also the use of a
926# choice statement should be more obvious to the user.
927#
928choice
929 prompt "Endianess selection"
930 help
931 Some MIPS machines can be configured for either little or big endian
932 byte order. These modes require different kernels and a different
933 Linux distribution. In general there is one preferred byteorder for a
934 particular system but some systems are just as commonly used in the
935 one or the other endianness.
936
937config CPU_BIG_ENDIAN
938 bool "Big endian"
939 depends on SYS_SUPPORTS_BIG_ENDIAN
940
941config CPU_LITTLE_ENDIAN
942 bool "Little endian"
943 depends on SYS_SUPPORTS_LITTLE_ENDIAN
944 help
945
946endchoice
947
948config EXPORT_UASM
949 bool
950
951config SYS_SUPPORTS_APM_EMULATION
952 bool
953
954config SYS_SUPPORTS_BIG_ENDIAN
955 bool
956
957config SYS_SUPPORTS_LITTLE_ENDIAN
958 bool
959
960config SYS_SUPPORTS_HUGETLBFS
961 bool
962 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
963 default y
964
965config IRQ_CPU
966 bool
967
968config IRQ_CPU_RM7K
969 bool
970
971config IRQ_CPU_RM9K
972 bool
973
974config IRQ_MSP_SLP
975 bool
976
977config IRQ_MSP_CIC
978 bool
979
980config IRQ_TXX9
981 bool
982
983config IRQ_GT641XX
984 bool
985
986config IRQ_GIC
987 bool
988
989config IRQ_CPU_OCTEON
990 bool
991
992config MIPS_BOARDS_GEN
993 bool
994
995config PCI_GT64XXX_PCI0
996 bool
997
998config NO_EXCEPT_FILL
999 bool
1000
1001config MIPS_RM9122
1002 bool
1003 select SERIAL_RM9000
1004
1005config SOC_EMMA2RH
1006 bool
1007 select CEVT_R4K
1008 select CSRC_R4K
1009 select DMA_NONCOHERENT
1010 select IRQ_CPU
1011 select SWAP_IO_SPACE
1012 select SYS_HAS_CPU_R5500
1013 select SYS_SUPPORTS_32BIT_KERNEL
1014 select SYS_SUPPORTS_64BIT_KERNEL
1015 select SYS_SUPPORTS_BIG_ENDIAN
1016
1017config SOC_PNX833X
1018 bool
1019 select CEVT_R4K
1020 select CSRC_R4K
1021 select IRQ_CPU
1022 select DMA_NONCOHERENT
1023 select SYS_HAS_CPU_MIPS32_R2
1024 select SYS_SUPPORTS_32BIT_KERNEL
1025 select SYS_SUPPORTS_LITTLE_ENDIAN
1026 select SYS_SUPPORTS_BIG_ENDIAN
1027 select GENERIC_GPIO
1028 select CPU_MIPSR2_IRQ_VI
1029
1030config SOC_PNX8335
1031 bool
1032 select SOC_PNX833X
1033
1034config PNX8550
1035 bool
1036 select SOC_PNX8550
1037
1038config SOC_PNX8550
1039 bool
1040 select DMA_NONCOHERENT
1041 select HW_HAS_PCI
1042 select SYS_HAS_CPU_MIPS32_R1
1043 select SYS_HAS_EARLY_PRINTK
1044 select SYS_SUPPORTS_32BIT_KERNEL
1045 select GENERIC_GPIO
1046
1047config SWAP_IO_SPACE
1048 bool
1049
1050config SERIAL_RM9000
1051 bool
1052
1053config SGI_HAS_INDYDOG
1054 bool
1055
1056config SGI_HAS_HAL2
1057 bool
1058
1059config SGI_HAS_SEEQ
1060 bool
1061
1062config SGI_HAS_WD93
1063 bool
1064
1065config SGI_HAS_ZILOG
1066 bool
1067
1068config SGI_HAS_I8042
1069 bool
1070
1071config DEFAULT_SGI_PARTITION
1072 bool
1073
1074config ARC32
1075 bool
1076
1077config SNIPROM
1078 bool
1079
1080config BOOT_ELF32
1081 bool
1082
1083config MIPS_L1_CACHE_SHIFT
1084 int
1085 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1086 default "6" if MIPS_CPU_SCACHE
1087 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1088 default "5"
1089
1090config HAVE_STD_PC_SERIAL_PORT
1091 bool
1092
1093config ARC_CONSOLE
1094 bool "ARC console support"
1095 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1096
1097config ARC_MEMORY
1098 bool
1099 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1100 default y
1101
1102config ARC_PROMLIB
1103 bool
1104 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1105 default y
1106
1107config ARC64
1108 bool
1109
1110config BOOT_ELF64
1111 bool
1112
1113menu "CPU selection"
1114
1115choice
1116 prompt "CPU type"
1117 default CPU_R4X00
1118
1119config CPU_LOONGSON2E
1120 bool "Loongson 2E"
1121 depends on SYS_HAS_CPU_LOONGSON2E
1122 select CPU_LOONGSON2
1123 help
1124 The Loongson 2E processor implements the MIPS III instruction set
1125 with many extensions.
1126
1127 It has an internal FPGA northbridge, which is compatiable to
1128 bonito64.
1129
1130config CPU_LOONGSON2F
1131 bool "Loongson 2F"
1132 depends on SYS_HAS_CPU_LOONGSON2F
1133 select CPU_LOONGSON2
1134 select GENERIC_GPIO
1135 select ARCH_REQUIRE_GPIOLIB
1136 help
1137 The Loongson 2F processor implements the MIPS III instruction set
1138 with many extensions.
1139
1140 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1141 have a similar programming interface with FPGA northbridge used in
1142 Loongson2E.
1143
1144config CPU_MIPS32_R1
1145 bool "MIPS32 Release 1"
1146 depends on SYS_HAS_CPU_MIPS32_R1
1147 select CPU_HAS_PREFETCH
1148 select CPU_SUPPORTS_32BIT_KERNEL
1149 select CPU_SUPPORTS_HIGHMEM
1150 help
1151 Choose this option to build a kernel for release 1 or later of the
1152 MIPS32 architecture. Most modern embedded systems with a 32-bit
1153 MIPS processor are based on a MIPS32 processor. If you know the
1154 specific type of processor in your system, choose those that one
1155 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1156 Release 2 of the MIPS32 architecture is available since several
1157 years so chances are you even have a MIPS32 Release 2 processor
1158 in which case you should choose CPU_MIPS32_R2 instead for better
1159 performance.
1160
1161config CPU_MIPS32_R2
1162 bool "MIPS32 Release 2"
1163 depends on SYS_HAS_CPU_MIPS32_R2
1164 select CPU_HAS_PREFETCH
1165 select CPU_SUPPORTS_32BIT_KERNEL
1166 select CPU_SUPPORTS_HIGHMEM
1167 help
1168 Choose this option to build a kernel for release 2 or later of the
1169 MIPS32 architecture. Most modern embedded systems with a 32-bit
1170 MIPS processor are based on a MIPS32 processor. If you know the
1171 specific type of processor in your system, choose those that one
1172 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1173
1174config CPU_MIPS64_R1
1175 bool "MIPS64 Release 1"
1176 depends on SYS_HAS_CPU_MIPS64_R1
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 1 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 Release 2 of the MIPS64 architecture is available since several
1189 years so chances are you even have a MIPS64 Release 2 processor
1190 in which case you should choose CPU_MIPS64_R2 instead for better
1191 performance.
1192
1193config CPU_MIPS64_R2
1194 bool "MIPS64 Release 2"
1195 depends on SYS_HAS_CPU_MIPS64_R2
1196 select CPU_HAS_PREFETCH
1197 select CPU_SUPPORTS_32BIT_KERNEL
1198 select CPU_SUPPORTS_64BIT_KERNEL
1199 select CPU_SUPPORTS_HIGHMEM
1200 select CPU_SUPPORTS_HUGEPAGES
1201 help
1202 Choose this option to build a kernel for release 2 or later of the
1203 MIPS64 architecture. Many modern embedded systems with a 64-bit
1204 MIPS processor are based on a MIPS64 processor. If you know the
1205 specific type of processor in your system, choose those that one
1206 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1207
1208config CPU_R3000
1209 bool "R3000"
1210 depends on SYS_HAS_CPU_R3000
1211 select CPU_HAS_WB
1212 select CPU_SUPPORTS_32BIT_KERNEL
1213 select CPU_SUPPORTS_HIGHMEM
1214 help
1215 Please make sure to pick the right CPU type. Linux/MIPS is not
1216 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1217 *not* work on R4000 machines and vice versa. However, since most
1218 of the supported machines have an R4000 (or similar) CPU, R4x00
1219 might be a safe bet. If the resulting kernel does not work,
1220 try to recompile with R3000.
1221
1222config CPU_TX39XX
1223 bool "R39XX"
1224 depends on SYS_HAS_CPU_TX39XX
1225 select CPU_SUPPORTS_32BIT_KERNEL
1226
1227config CPU_VR41XX
1228 bool "R41xx"
1229 depends on SYS_HAS_CPU_VR41XX
1230 select CPU_SUPPORTS_32BIT_KERNEL
1231 select CPU_SUPPORTS_64BIT_KERNEL
1232 help
1233 The options selects support for the NEC VR4100 series of processors.
1234 Only choose this option if you have one of these processors as a
1235 kernel built with this option will not run on any other type of
1236 processor or vice versa.
1237
1238config CPU_R4300
1239 bool "R4300"
1240 depends on SYS_HAS_CPU_R4300
1241 select CPU_SUPPORTS_32BIT_KERNEL
1242 select CPU_SUPPORTS_64BIT_KERNEL
1243 help
1244 MIPS Technologies R4300-series processors.
1245
1246config CPU_R4X00
1247 bool "R4x00"
1248 depends on SYS_HAS_CPU_R4X00
1249 select CPU_SUPPORTS_32BIT_KERNEL
1250 select CPU_SUPPORTS_64BIT_KERNEL
1251 help
1252 MIPS Technologies R4000-series processors other than 4300, including
1253 the R4000, R4400, R4600, and 4700.
1254
1255config CPU_TX49XX
1256 bool "R49XX"
1257 depends on SYS_HAS_CPU_TX49XX
1258 select CPU_HAS_PREFETCH
1259 select CPU_SUPPORTS_32BIT_KERNEL
1260 select CPU_SUPPORTS_64BIT_KERNEL
1261
1262config CPU_R5000
1263 bool "R5000"
1264 depends on SYS_HAS_CPU_R5000
1265 select CPU_SUPPORTS_32BIT_KERNEL
1266 select CPU_SUPPORTS_64BIT_KERNEL
1267 help
1268 MIPS Technologies R5000-series processors other than the Nevada.
1269
1270config CPU_R5432
1271 bool "R5432"
1272 depends on SYS_HAS_CPU_R5432
1273 select CPU_SUPPORTS_32BIT_KERNEL
1274 select CPU_SUPPORTS_64BIT_KERNEL
1275
1276config CPU_R5500
1277 bool "R5500"
1278 depends on SYS_HAS_CPU_R5500
1279 select CPU_SUPPORTS_32BIT_KERNEL
1280 select CPU_SUPPORTS_64BIT_KERNEL
1281 select CPU_SUPPORTS_HUGEPAGES
1282 help
1283 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1284 instruction set.
1285
1286config CPU_R6000
1287 bool "R6000"
1288 depends on EXPERIMENTAL
1289 depends on SYS_HAS_CPU_R6000
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 help
1292 MIPS Technologies R6000 and R6000A series processors. Note these
1293 processors are extremely rare and the support for them is incomplete.
1294
1295config CPU_NEVADA
1296 bool "RM52xx"
1297 depends on SYS_HAS_CPU_NEVADA
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_64BIT_KERNEL
1300 help
1301 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1302
1303config CPU_R8000
1304 bool "R8000"
1305 depends on EXPERIMENTAL
1306 depends on SYS_HAS_CPU_R8000
1307 select CPU_HAS_PREFETCH
1308 select CPU_SUPPORTS_64BIT_KERNEL
1309 help
1310 MIPS Technologies R8000 processors. Note these processors are
1311 uncommon and the support for them is incomplete.
1312
1313config CPU_R10000
1314 bool "R10000"
1315 depends on SYS_HAS_CPU_R10000
1316 select CPU_HAS_PREFETCH
1317 select CPU_SUPPORTS_32BIT_KERNEL
1318 select CPU_SUPPORTS_64BIT_KERNEL
1319 select CPU_SUPPORTS_HIGHMEM
1320 help
1321 MIPS Technologies R10000-series processors.
1322
1323config CPU_RM7000
1324 bool "RM7000"
1325 depends on SYS_HAS_CPU_RM7000
1326 select CPU_HAS_PREFETCH
1327 select CPU_SUPPORTS_32BIT_KERNEL
1328 select CPU_SUPPORTS_64BIT_KERNEL
1329 select CPU_SUPPORTS_HIGHMEM
1330
1331config CPU_RM9000
1332 bool "RM9000"
1333 depends on SYS_HAS_CPU_RM9000
1334 select CPU_HAS_PREFETCH
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
1337 select CPU_SUPPORTS_HIGHMEM
1338 select WEAK_ORDERING
1339
1340config CPU_SB1
1341 bool "SB1"
1342 depends on SYS_HAS_CPU_SB1
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_64BIT_KERNEL
1345 select CPU_SUPPORTS_HIGHMEM
1346 select WEAK_ORDERING
1347
1348config CPU_CAVIUM_OCTEON
1349 bool "Cavium Octeon processor"
1350 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1351 select IRQ_CPU
1352 select IRQ_CPU_OCTEON
1353 select CPU_HAS_PREFETCH
1354 select CPU_SUPPORTS_64BIT_KERNEL
1355 select SYS_SUPPORTS_SMP
1356 select NR_CPUS_DEFAULT_16
1357 select WEAK_ORDERING
1358 select CPU_SUPPORTS_HIGHMEM
1359 select CPU_SUPPORTS_HUGEPAGES
1360 help
1361 The Cavium Octeon processor is a highly integrated chip containing
1362 many ethernet hardware widgets for networking tasks. The processor
1363 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1364 Full details can be found at http://www.caviumnetworks.com.
1365
1366config CPU_BMIPS3300
1367 bool "BMIPS3300"
1368 depends on SYS_HAS_CPU_BMIPS3300
1369 select DMA_NONCOHERENT
1370 select IRQ_CPU
1371 select SWAP_IO_SPACE
1372 select SYS_SUPPORTS_32BIT_KERNEL
1373 select WEAK_ORDERING
1374 help
1375 Broadcom BMIPS3300 processors.
1376
1377config CPU_BMIPS4350
1378 bool "BMIPS4350"
1379 depends on SYS_HAS_CPU_BMIPS4350
1380 select CPU_SUPPORTS_32BIT_KERNEL
1381 select DMA_NONCOHERENT
1382 select IRQ_CPU
1383 select SWAP_IO_SPACE
1384 select SYS_SUPPORTS_SMP
1385 select SYS_SUPPORTS_HOTPLUG_CPU
1386 select WEAK_ORDERING
1387 help
1388 Broadcom BMIPS4350 ("VIPER") processors.
1389
1390config CPU_BMIPS4380
1391 bool "BMIPS4380"
1392 depends on SYS_HAS_CPU_BMIPS4380
1393 select CPU_SUPPORTS_32BIT_KERNEL
1394 select DMA_NONCOHERENT
1395 select IRQ_CPU
1396 select SWAP_IO_SPACE
1397 select SYS_SUPPORTS_SMP
1398 select SYS_SUPPORTS_HOTPLUG_CPU
1399 select WEAK_ORDERING
1400 help
1401 Broadcom BMIPS4380 processors.
1402
1403config CPU_BMIPS5000
1404 bool "BMIPS5000"
1405 depends on SYS_HAS_CPU_BMIPS5000
1406 select CPU_SUPPORTS_32BIT_KERNEL
1407 select CPU_SUPPORTS_HIGHMEM
1408 select DMA_NONCOHERENT
1409 select IRQ_CPU
1410 select SWAP_IO_SPACE
1411 select SYS_SUPPORTS_SMP
1412 select SYS_SUPPORTS_HOTPLUG_CPU
1413 select WEAK_ORDERING
1414 help
1415 Broadcom BMIPS5000 processors.
1416
1417endchoice
1418
1419if CPU_LOONGSON2F
1420config CPU_NOP_WORKAROUNDS
1421 bool
1422
1423config CPU_JUMP_WORKAROUNDS
1424 bool
1425
1426config CPU_LOONGSON2F_WORKAROUNDS
1427 bool "Loongson 2F Workarounds"
1428 default y
1429 select CPU_NOP_WORKAROUNDS
1430 select CPU_JUMP_WORKAROUNDS
1431 help
1432 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1433 require workarounds. Without workarounds the system may hang
1434 unexpectedly. For more information please refer to the gas
1435 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1436
1437 Loongson 2F03 and later have fixed these issues and no workarounds
1438 are needed. The workarounds have no significant side effect on them
1439 but may decrease the performance of the system so this option should
1440 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1441 systems.
1442
1443 If unsure, please say Y.
1444endif # CPU_LOONGSON2F
1445
1446config SYS_SUPPORTS_ZBOOT
1447 bool
1448 select HAVE_KERNEL_GZIP
1449 select HAVE_KERNEL_BZIP2
1450 select HAVE_KERNEL_LZMA
1451 select HAVE_KERNEL_LZO
1452
1453config SYS_SUPPORTS_ZBOOT_UART16550
1454 bool
1455 select SYS_SUPPORTS_ZBOOT
1456
1457config CPU_LOONGSON2
1458 bool
1459 select CPU_SUPPORTS_32BIT_KERNEL
1460 select CPU_SUPPORTS_64BIT_KERNEL
1461 select CPU_SUPPORTS_HIGHMEM
1462
1463config SYS_HAS_CPU_LOONGSON2E
1464 bool
1465
1466config SYS_HAS_CPU_LOONGSON2F
1467 bool
1468 select CPU_SUPPORTS_CPUFREQ
1469 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1470 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1471
1472config SYS_HAS_CPU_MIPS32_R1
1473 bool
1474
1475config SYS_HAS_CPU_MIPS32_R2
1476 bool
1477
1478config SYS_HAS_CPU_MIPS64_R1
1479 bool
1480
1481config SYS_HAS_CPU_MIPS64_R2
1482 bool
1483
1484config SYS_HAS_CPU_R3000
1485 bool
1486
1487config SYS_HAS_CPU_TX39XX
1488 bool
1489
1490config SYS_HAS_CPU_VR41XX
1491 bool
1492
1493config SYS_HAS_CPU_R4300
1494 bool
1495
1496config SYS_HAS_CPU_R4X00
1497 bool
1498
1499config SYS_HAS_CPU_TX49XX
1500 bool
1501
1502config SYS_HAS_CPU_R5000
1503 bool
1504
1505config SYS_HAS_CPU_R5432
1506 bool
1507
1508config SYS_HAS_CPU_R5500
1509 bool
1510
1511config SYS_HAS_CPU_R6000
1512 bool
1513
1514config SYS_HAS_CPU_NEVADA
1515 bool
1516
1517config SYS_HAS_CPU_R8000
1518 bool
1519
1520config SYS_HAS_CPU_R10000
1521 bool
1522
1523config SYS_HAS_CPU_RM7000
1524 bool
1525
1526config SYS_HAS_CPU_RM9000
1527 bool
1528
1529config SYS_HAS_CPU_SB1
1530 bool
1531
1532config SYS_HAS_CPU_CAVIUM_OCTEON
1533 bool
1534
1535config SYS_HAS_CPU_BMIPS3300
1536 bool
1537
1538config SYS_HAS_CPU_BMIPS4350
1539 bool
1540
1541config SYS_HAS_CPU_BMIPS4380
1542 bool
1543
1544config SYS_HAS_CPU_BMIPS5000
1545 bool
1546
1547#
1548# CPU may reorder R->R, R->W, W->R, W->W
1549# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1550#
1551config WEAK_ORDERING
1552 bool
1553
1554#
1555# CPU may reorder reads and writes beyond LL/SC
1556# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1557#
1558config WEAK_REORDERING_BEYOND_LLSC
1559 bool
1560endmenu
1561
1562#
1563# These two indicate any level of the MIPS32 and MIPS64 architecture
1564#
1565config CPU_MIPS32
1566 bool
1567 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1568
1569config CPU_MIPS64
1570 bool
1571 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1572
1573#
1574# These two indicate the revision of the architecture, either Release 1 or Release 2
1575#
1576config CPU_MIPSR1
1577 bool
1578 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1579
1580config CPU_MIPSR2
1581 bool
1582 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1583
1584config SYS_SUPPORTS_32BIT_KERNEL
1585 bool
1586config SYS_SUPPORTS_64BIT_KERNEL
1587 bool
1588config CPU_SUPPORTS_32BIT_KERNEL
1589 bool
1590config CPU_SUPPORTS_64BIT_KERNEL
1591 bool
1592config CPU_SUPPORTS_CPUFREQ
1593 bool
1594config CPU_SUPPORTS_ADDRWINCFG
1595 bool
1596config CPU_SUPPORTS_HUGEPAGES
1597 bool
1598config CPU_SUPPORTS_UNCACHED_ACCELERATED
1599 bool
1600config MIPS_PGD_C0_CONTEXT
1601 bool
1602 default y if 64BIT && CPU_MIPSR2
1603
1604#
1605# Set to y for ptrace access to watch registers.
1606#
1607config HARDWARE_WATCHPOINTS
1608 bool
1609 default y if CPU_MIPSR1 || CPU_MIPSR2
1610
1611menu "Kernel type"
1612
1613choice
1614
1615 prompt "Kernel code model"
1616 help
1617 You should only select this option if you have a workload that
1618 actually benefits from 64-bit processing or if your machine has
1619 large memory. You will only be presented a single option in this
1620 menu if your system does not support both 32-bit and 64-bit kernels.
1621
1622config 32BIT
1623 bool "32-bit kernel"
1624 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1625 select TRAD_SIGNALS
1626 help
1627 Select this option if you want to build a 32-bit kernel.
1628config 64BIT
1629 bool "64-bit kernel"
1630 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1631 select HAVE_SYSCALL_WRAPPERS
1632 help
1633 Select this option if you want to build a 64-bit kernel.
1634
1635endchoice
1636
1637choice
1638 prompt "Kernel page size"
1639 default PAGE_SIZE_4KB
1640
1641config PAGE_SIZE_4KB
1642 bool "4kB"
1643 depends on !CPU_LOONGSON2
1644 help
1645 This option select the standard 4kB Linux page size. On some
1646 R3000-family processors this is the only available page size. Using
1647 4kB page size will minimize memory consumption and is therefore
1648 recommended for low memory systems.
1649
1650config PAGE_SIZE_8KB
1651 bool "8kB"
1652 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1653 help
1654 Using 8kB page size will result in higher performance kernel at
1655 the price of higher memory consumption. This option is available
1656 only on R8000 and cnMIPS processors. Note that you will need a
1657 suitable Linux distribution to support this.
1658
1659config PAGE_SIZE_16KB
1660 bool "16kB"
1661 depends on !CPU_R3000 && !CPU_TX39XX
1662 help
1663 Using 16kB page size will result in higher performance kernel at
1664 the price of higher memory consumption. This option is available on
1665 all non-R3000 family processors. Note that you will need a suitable
1666 Linux distribution to support this.
1667
1668config PAGE_SIZE_32KB
1669 bool "32kB"
1670 depends on CPU_CAVIUM_OCTEON
1671 help
1672 Using 32kB page size will result in higher performance kernel at
1673 the price of higher memory consumption. This option is available
1674 only on cnMIPS cores. Note that you will need a suitable Linux
1675 distribution to support this.
1676
1677config PAGE_SIZE_64KB
1678 bool "64kB"
1679 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1680 help
1681 Using 64kB page size will result in higher performance kernel at
1682 the price of higher memory consumption. This option is available on
1683 all non-R3000 family processor. Not that at the time of this
1684 writing this option is still high experimental.
1685
1686endchoice
1687
1688config FORCE_MAX_ZONEORDER
1689 int "Maximum zone order"
1690 range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1691 default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1692 range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1693 default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1694 range 11 64
1695 default "11"
1696 help
1697 The kernel memory allocator divides physically contiguous memory
1698 blocks into "zones", where each zone is a power of two number of
1699 pages. This option selects the largest power of two that the kernel
1700 keeps in the memory allocator. If you need to allocate very large
1701 blocks of physically contiguous memory, then you may need to
1702 increase this value.
1703
1704 This config option is actually maximum order plus one. For example,
1705 a value of 11 means that the largest free memory block is 2^10 pages.
1706
1707 The page size is not necessarily 4KB. Keep this in mind
1708 when choosing a value for this option.
1709
1710config BOARD_SCACHE
1711 bool
1712
1713config IP22_CPU_SCACHE
1714 bool
1715 select BOARD_SCACHE
1716
1717#
1718# Support for a MIPS32 / MIPS64 style S-caches
1719#
1720config MIPS_CPU_SCACHE
1721 bool
1722 select BOARD_SCACHE
1723
1724config R5000_CPU_SCACHE
1725 bool
1726 select BOARD_SCACHE
1727
1728config RM7000_CPU_SCACHE
1729 bool
1730 select BOARD_SCACHE
1731
1732config SIBYTE_DMA_PAGEOPS
1733 bool "Use DMA to clear/copy pages"
1734 depends on CPU_SB1
1735 help
1736 Instead of using the CPU to zero and copy pages, use a Data Mover
1737 channel. These DMA channels are otherwise unused by the standard
1738 SiByte Linux port. Seems to give a small performance benefit.
1739
1740config CPU_HAS_PREFETCH
1741 bool
1742
1743choice
1744 prompt "MIPS MT options"
1745
1746config MIPS_MT_DISABLED
1747 bool "Disable multithreading support."
1748 help
1749 Use this option if your workload can't take advantage of
1750 MIPS hardware multithreading support. On systems that don't have
1751 the option of an MT-enabled processor this option will be the only
1752 option in this menu.
1753
1754config MIPS_MT_SMP
1755 bool "Use 1 TC on each available VPE for SMP"
1756 depends on SYS_SUPPORTS_MULTITHREADING
1757 select CPU_MIPSR2_IRQ_VI
1758 select CPU_MIPSR2_IRQ_EI
1759 select MIPS_MT
1760 select NR_CPUS_DEFAULT_2
1761 select SMP
1762 select SYS_SUPPORTS_SCHED_SMT if SMP
1763 select SYS_SUPPORTS_SMP
1764 select SMP_UP
1765 help
1766 This is a kernel model which is known a VSMP but lately has been
1767 marketesed into SMVP.
1768 Virtual SMP uses the processor's VPEs to implement virtual
1769 processors. In currently available configuration of the 34K processor
1770 this allows for a dual processor. Both processors will share the same
1771 primary caches; each will obtain the half of the TLB for it's own
1772 exclusive use. For a layman this model can be described as similar to
1773 what Intel calls Hyperthreading.
1774
1775 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1776
1777config MIPS_MT_SMTC
1778 bool "SMTC: Use all TCs on all VPEs for SMP"
1779 depends on CPU_MIPS32_R2
1780 #depends on CPU_MIPS64_R2 # once there is hardware ...
1781 depends on SYS_SUPPORTS_MULTITHREADING
1782 select CPU_MIPSR2_IRQ_VI
1783 select CPU_MIPSR2_IRQ_EI
1784 select MIPS_MT
1785 select NR_CPUS_DEFAULT_8
1786 select SMP
1787 select SYS_SUPPORTS_SMP
1788 select SMP_UP
1789 help
1790 This is a kernel model which is known a SMTC or lately has been
1791 marketesed into SMVP.
1792 is presenting the available TC's of the core as processors to Linux.
1793 On currently available 34K processors this means a Linux system will
1794 see up to 5 processors. The implementation of the SMTC kernel differs
1795 significantly from VSMP and cannot efficiently coexist in the same
1796 kernel binary so the choice between VSMP and SMTC is a compile time
1797 decision.
1798
1799 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1800
1801endchoice
1802
1803config MIPS_MT
1804 bool
1805
1806config SCHED_SMT
1807 bool "SMT (multithreading) scheduler support"
1808 depends on SYS_SUPPORTS_SCHED_SMT
1809 default n
1810 help
1811 SMT scheduler support improves the CPU scheduler's decision making
1812 when dealing with MIPS MT enabled cores at a cost of slightly
1813 increased overhead in some places. If unsure say N here.
1814
1815config SYS_SUPPORTS_SCHED_SMT
1816 bool
1817
1818
1819config SYS_SUPPORTS_MULTITHREADING
1820 bool
1821
1822config MIPS_MT_FPAFF
1823 bool "Dynamic FPU affinity for FP-intensive threads"
1824 default y
1825 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1826
1827config MIPS_VPE_LOADER
1828 bool "VPE loader support."
1829 depends on SYS_SUPPORTS_MULTITHREADING
1830 select CPU_MIPSR2_IRQ_VI
1831 select CPU_MIPSR2_IRQ_EI
1832 select MIPS_MT
1833 help
1834 Includes a loader for loading an elf relocatable object
1835 onto another VPE and running it.
1836
1837config MIPS_MT_SMTC_IM_BACKSTOP
1838 bool "Use per-TC register bits as backstop for inhibited IM bits"
1839 depends on MIPS_MT_SMTC
1840 default n
1841 help
1842 To support multiple TC microthreads acting as "CPUs" within
1843 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1844 during interrupt handling. To support legacy drivers and interrupt
1845 controller management code, SMTC has a "backstop" to track and
1846 if necessary restore the interrupt mask. This has some performance
1847 impact on interrupt service overhead.
1848
1849config MIPS_MT_SMTC_IRQAFF
1850 bool "Support IRQ affinity API"
1851 depends on MIPS_MT_SMTC
1852 default n
1853 help
1854 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1855 for SMTC Linux kernel. Requires platform support, of which
1856 an example can be found in the MIPS kernel i8259 and Malta
1857 platform code. Adds some overhead to interrupt dispatch, and
1858 should be used only if you know what you are doing.
1859
1860config MIPS_VPE_LOADER_TOM
1861 bool "Load VPE program into memory hidden from linux"
1862 depends on MIPS_VPE_LOADER
1863 default y
1864 help
1865 The loader can use memory that is present but has been hidden from
1866 Linux using the kernel command line option "mem=xxMB". It's up to
1867 you to ensure the amount you put in the option and the space your
1868 program requires is less or equal to the amount physically present.
1869
1870# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1871config MIPS_VPE_APSP_API
1872 bool "Enable support for AP/SP API (RTLX)"
1873 depends on MIPS_VPE_LOADER
1874 help
1875
1876config MIPS_APSP_KSPD
1877 bool "Enable KSPD"
1878 depends on MIPS_VPE_APSP_API
1879 default y
1880 help
1881 KSPD is a kernel daemon that accepts syscall requests from the SP
1882 side, actions them and returns the results. It also handles the
1883 "exit" syscall notifying other kernel modules the SP program is
1884 exiting. You probably want to say yes here.
1885
1886config MIPS_CMP
1887 bool "MIPS CMP framework support"
1888 depends on SYS_SUPPORTS_MIPS_CMP
1889 select SYNC_R4K
1890 select SYS_SUPPORTS_SMP
1891 select SYS_SUPPORTS_SCHED_SMT if SMP
1892 select WEAK_ORDERING
1893 default n
1894 help
1895 This is a placeholder option for the GCMP work. It will need to
1896 be handled differently...
1897
1898config SB1_PASS_1_WORKAROUNDS
1899 bool
1900 depends on CPU_SB1_PASS_1
1901 default y
1902
1903config SB1_PASS_2_WORKAROUNDS
1904 bool
1905 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1906 default y
1907
1908config SB1_PASS_2_1_WORKAROUNDS
1909 bool
1910 depends on CPU_SB1 && CPU_SB1_PASS_2
1911 default y
1912
1913config 64BIT_PHYS_ADDR
1914 bool
1915
1916config ARCH_PHYS_ADDR_T_64BIT
1917 def_bool 64BIT_PHYS_ADDR
1918
1919config CPU_HAS_SMARTMIPS
1920 depends on SYS_SUPPORTS_SMARTMIPS
1921 bool "Support for the SmartMIPS ASE"
1922 help
1923 SmartMIPS is a extension of the MIPS32 architecture aimed at
1924 increased security at both hardware and software level for
1925 smartcards. Enabling this option will allow proper use of the
1926 SmartMIPS instructions by Linux applications. However a kernel with
1927 this option will not work on a MIPS core without SmartMIPS core. If
1928 you don't know you probably don't have SmartMIPS and should say N
1929 here.
1930
1931config CPU_HAS_WB
1932 bool
1933
1934#
1935# Vectored interrupt mode is an R2 feature
1936#
1937config CPU_MIPSR2_IRQ_VI
1938 bool
1939
1940#
1941# Extended interrupt mode is an R2 feature
1942#
1943config CPU_MIPSR2_IRQ_EI
1944 bool
1945
1946config CPU_HAS_SYNC
1947 bool
1948 depends on !CPU_R3000
1949 default y
1950
1951config GENERIC_CLOCKEVENTS_BROADCAST
1952 bool
1953
1954#
1955# CPU non-features
1956#
1957config CPU_DADDI_WORKAROUNDS
1958 bool
1959
1960config CPU_R4000_WORKAROUNDS
1961 bool
1962 select CPU_R4400_WORKAROUNDS
1963
1964config CPU_R4400_WORKAROUNDS
1965 bool
1966
1967#
1968# - Highmem only makes sense for the 32-bit kernel.
1969# - The current highmem code will only work properly on physically indexed
1970# caches such as R3000, SB1, R7000 or those that look like they're virtually
1971# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1972# moment we protect the user and offer the highmem option only on machines
1973# where it's known to be safe. This will not offer highmem on a few systems
1974# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1975# indexed CPUs but we're playing safe.
1976# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1977# know they might have memory configurations that could make use of highmem
1978# support.
1979#
1980config HIGHMEM
1981 bool "High Memory Support"
1982 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1983
1984config CPU_SUPPORTS_HIGHMEM
1985 bool
1986
1987config SYS_SUPPORTS_HIGHMEM
1988 bool
1989
1990config SYS_SUPPORTS_SMARTMIPS
1991 bool
1992
1993config ARCH_FLATMEM_ENABLE
1994 def_bool y
1995 depends on !NUMA && !CPU_LOONGSON2
1996
1997config ARCH_DISCONTIGMEM_ENABLE
1998 bool
1999 default y if SGI_IP27
2000 help
2001 Say Y to support efficient handling of discontiguous physical memory,
2002 for architectures which are either NUMA (Non-Uniform Memory Access)
2003 or have huge holes in the physical address space for other reasons.
2004 See <file:Documentation/vm/numa> for more.
2005
2006config ARCH_POPULATES_NODE_MAP
2007 def_bool y
2008
2009config ARCH_SPARSEMEM_ENABLE
2010 bool
2011 select SPARSEMEM_STATIC
2012
2013config NUMA
2014 bool "NUMA Support"
2015 depends on SYS_SUPPORTS_NUMA
2016 help
2017 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2018 Access). This option improves performance on systems with more
2019 than two nodes; on two node systems it is generally better to
2020 leave it disabled; on single node systems disable this option
2021 disabled.
2022
2023config SYS_SUPPORTS_NUMA
2024 bool
2025
2026config NODES_SHIFT
2027 int
2028 default "6"
2029 depends on NEED_MULTIPLE_NODES
2030
2031config HW_PERF_EVENTS
2032 bool "Enable hardware performance counter support for perf events"
2033 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32
2034 default y
2035 help
2036 Enable hardware performance counter support for perf events. If
2037 disabled, perf events will use software events only.
2038
2039source "mm/Kconfig"
2040
2041config SMP
2042 bool "Multi-Processing support"
2043 depends on SYS_SUPPORTS_SMP
2044 select IRQ_PER_CPU
2045 select USE_GENERIC_SMP_HELPERS
2046 help
2047 This enables support for systems with more than one CPU. If you have
2048 a system with only one CPU, like most personal computers, say N. If
2049 you have a system with more than one CPU, say Y.
2050
2051 If you say N here, the kernel will run on single and multiprocessor
2052 machines, but will use only one CPU of a multiprocessor machine. If
2053 you say Y here, the kernel will run on many, but not all,
2054 singleprocessor machines. On a singleprocessor machine, the kernel
2055 will run faster if you say N here.
2056
2057 People using multiprocessor machines who say Y here should also say
2058 Y to "Enhanced Real Time Clock Support", below.
2059
2060 See also the SMP-HOWTO available at
2061 <http://www.tldp.org/docs.html#howto>.
2062
2063 If you don't know what to do here, say N.
2064
2065config SMP_UP
2066 bool
2067
2068config SYS_SUPPORTS_MIPS_CMP
2069 bool
2070
2071config SYS_SUPPORTS_SMP
2072 bool
2073
2074config NR_CPUS_DEFAULT_1
2075 bool
2076
2077config NR_CPUS_DEFAULT_2
2078 bool
2079
2080config NR_CPUS_DEFAULT_4
2081 bool
2082
2083config NR_CPUS_DEFAULT_8
2084 bool
2085
2086config NR_CPUS_DEFAULT_16
2087 bool
2088
2089config NR_CPUS_DEFAULT_32
2090 bool
2091
2092config NR_CPUS_DEFAULT_64
2093 bool
2094
2095config NR_CPUS
2096 int "Maximum number of CPUs (2-64)"
2097 range 1 64 if NR_CPUS_DEFAULT_1
2098 depends on SMP
2099 default "1" if NR_CPUS_DEFAULT_1
2100 default "2" if NR_CPUS_DEFAULT_2
2101 default "4" if NR_CPUS_DEFAULT_4
2102 default "8" if NR_CPUS_DEFAULT_8
2103 default "16" if NR_CPUS_DEFAULT_16
2104 default "32" if NR_CPUS_DEFAULT_32
2105 default "64" if NR_CPUS_DEFAULT_64
2106 help
2107 This allows you to specify the maximum number of CPUs which this
2108 kernel will support. The maximum supported value is 32 for 32-bit
2109 kernel and 64 for 64-bit kernels; the minimum value which makes
2110 sense is 1 for Qemu (useful only for kernel debugging purposes)
2111 and 2 for all others.
2112
2113 This is purely to save memory - each supported CPU adds
2114 approximately eight kilobytes to the kernel image. For best
2115 performance should round up your number of processors to the next
2116 power of two.
2117
2118source "kernel/time/Kconfig"
2119
2120#
2121# Timer Interrupt Frequency Configuration
2122#
2123
2124choice
2125 prompt "Timer frequency"
2126 default HZ_250
2127 help
2128 Allows the configuration of the timer frequency.
2129
2130 config HZ_48
2131 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2132
2133 config HZ_100
2134 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2135
2136 config HZ_128
2137 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2138
2139 config HZ_250
2140 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2141
2142 config HZ_256
2143 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2144
2145 config HZ_1000
2146 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2147
2148 config HZ_1024
2149 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2150
2151endchoice
2152
2153config SYS_SUPPORTS_48HZ
2154 bool
2155
2156config SYS_SUPPORTS_100HZ
2157 bool
2158
2159config SYS_SUPPORTS_128HZ
2160 bool
2161
2162config SYS_SUPPORTS_250HZ
2163 bool
2164
2165config SYS_SUPPORTS_256HZ
2166 bool
2167
2168config SYS_SUPPORTS_1000HZ
2169 bool
2170
2171config SYS_SUPPORTS_1024HZ
2172 bool
2173
2174config SYS_SUPPORTS_ARBIT_HZ
2175 bool
2176 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2177 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2178 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2179 !SYS_SUPPORTS_1024HZ
2180
2181config HZ
2182 int
2183 default 48 if HZ_48
2184 default 100 if HZ_100
2185 default 128 if HZ_128
2186 default 250 if HZ_250
2187 default 256 if HZ_256
2188 default 1000 if HZ_1000
2189 default 1024 if HZ_1024
2190
2191source "kernel/Kconfig.preempt"
2192
2193config MIPS_INSANE_LARGE
2194 bool "Support for large 64-bit configurations"
2195 depends on CPU_R10000 && 64BIT
2196 help
2197 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2198 previous 64-bit processors which only supported 40 bit / 1TB. If you
2199 need processes of more than 1TB virtual address space, say Y here.
2200 This will result in additional memory usage, so it is not
2201 recommended for normal users.
2202
2203config KEXEC
2204 bool "Kexec system call (EXPERIMENTAL)"
2205 depends on EXPERIMENTAL
2206 help
2207 kexec is a system call that implements the ability to shutdown your
2208 current kernel, and to start another kernel. It is like a reboot
2209 but it is independent of the system firmware. And like a reboot
2210 you can start any kernel with it, not just Linux.
2211
2212 The name comes from the similarity to the exec system call.
2213
2214 It is an ongoing process to be certain the hardware in a machine
2215 is properly shutdown, so do not be surprised if this code does not
2216 initially work for you. It may help to enable device hotplugging
2217 support. As of this writing the exact hardware interface is
2218 strongly in flux, so no good recommendation can be made.
2219
2220config SECCOMP
2221 bool "Enable seccomp to safely compute untrusted bytecode"
2222 depends on PROC_FS
2223 default y
2224 help
2225 This kernel feature is useful for number crunching applications
2226 that may need to compute untrusted bytecode during their
2227 execution. By using pipes or other transports made available to
2228 the process as file descriptors supporting the read/write
2229 syscalls, it's possible to isolate those applications in
2230 their own address space using seccomp. Once seccomp is
2231 enabled via /proc/<pid>/seccomp, it cannot be disabled
2232 and the task is only allowed to execute a few safe syscalls
2233 defined by each seccomp mode.
2234
2235 If unsure, say Y. Only embedded should say N here.
2236
2237config USE_OF
2238 bool "Flattened Device Tree support"
2239 select OF
2240 select OF_EARLY_FLATTREE
2241 help
2242 Include support for flattened device tree machine descriptions.
2243
2244endmenu
2245
2246config LOCKDEP_SUPPORT
2247 bool
2248 default y
2249
2250config STACKTRACE_SUPPORT
2251 bool
2252 default y
2253
2254source "init/Kconfig"
2255
2256source "kernel/Kconfig.freezer"
2257
2258menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2259
2260config HW_HAS_EISA
2261 bool
2262config HW_HAS_PCI
2263 bool
2264
2265config PCI
2266 bool "Support for PCI controller"
2267 depends on HW_HAS_PCI
2268 select PCI_DOMAINS
2269 help
2270 Find out whether you have a PCI motherboard. PCI is the name of a
2271 bus system, i.e. the way the CPU talks to the other stuff inside
2272 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2273 say Y, otherwise N.
2274
2275config PCI_DOMAINS
2276 bool
2277
2278source "drivers/pci/Kconfig"
2279
2280#
2281# ISA support is now enabled via select. Too many systems still have the one
2282# or other ISA chip on the board that users don't know about so don't expect
2283# users to choose the right thing ...
2284#
2285config ISA
2286 bool
2287
2288config EISA
2289 bool "EISA support"
2290 depends on HW_HAS_EISA
2291 select ISA
2292 select GENERIC_ISA_DMA
2293 ---help---
2294 The Extended Industry Standard Architecture (EISA) bus was
2295 developed as an open alternative to the IBM MicroChannel bus.
2296
2297 The EISA bus provided some of the features of the IBM MicroChannel
2298 bus while maintaining backward compatibility with cards made for
2299 the older ISA bus. The EISA bus saw limited use between 1988 and
2300 1995 when it was made obsolete by the PCI bus.
2301
2302 Say Y here if you are building a kernel for an EISA-based machine.
2303
2304 Otherwise, say N.
2305
2306source "drivers/eisa/Kconfig"
2307
2308config TC
2309 bool "TURBOchannel support"
2310 depends on MACH_DECSTATION
2311 help
2312 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2313 processors. TURBOchannel programming specifications are available
2314 at:
2315 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2316 and:
2317 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2318 Linux driver support status is documented at:
2319 <http://www.linux-mips.org/wiki/DECstation>
2320
2321#config ACCESSBUS
2322# bool "Access.Bus support"
2323# depends on TC
2324
2325config MMU
2326 bool
2327 default y
2328
2329config I8253
2330 bool
2331 select MIPS_EXTERNAL_TIMER
2332
2333config ZONE_DMA32
2334 bool
2335
2336source "drivers/pcmcia/Kconfig"
2337
2338source "drivers/pci/hotplug/Kconfig"
2339
2340endmenu
2341
2342menu "Executable file formats"
2343
2344source "fs/Kconfig.binfmt"
2345
2346config TRAD_SIGNALS
2347 bool
2348
2349config MIPS32_COMPAT
2350 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2351 depends on 64BIT
2352 help
2353 Select this option if you want Linux/MIPS 32-bit binary
2354 compatibility. Since all software available for Linux/MIPS is
2355 currently 32-bit you should say Y here.
2356
2357config COMPAT
2358 bool
2359 depends on MIPS32_COMPAT
2360 default y
2361
2362config SYSVIPC_COMPAT
2363 bool
2364 depends on COMPAT && SYSVIPC
2365 default y
2366
2367config MIPS32_O32
2368 bool "Kernel support for o32 binaries"
2369 depends on MIPS32_COMPAT
2370 help
2371 Select this option if you want to run o32 binaries. These are pure
2372 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2373 existing binaries are in this format.
2374
2375 If unsure, say Y.
2376
2377config MIPS32_N32
2378 bool "Kernel support for n32 binaries"
2379 depends on MIPS32_COMPAT
2380 help
2381 Select this option if you want to run n32 binaries. These are
2382 64-bit binaries using 32-bit quantities for addressing and certain
2383 data that would normally be 64-bit. They are used in special
2384 cases.
2385
2386 If unsure, say N.
2387
2388config BINFMT_ELF32
2389 bool
2390 default y if MIPS32_O32 || MIPS32_N32
2391
2392endmenu
2393
2394menu "Power management options"
2395
2396config ARCH_HIBERNATION_POSSIBLE
2397 def_bool y
2398 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2399
2400config ARCH_SUSPEND_POSSIBLE
2401 def_bool y
2402 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2403
2404source "kernel/power/Kconfig"
2405
2406endmenu
2407
2408source "arch/mips/kernel/cpufreq/Kconfig"
2409
2410source "net/Kconfig"
2411
2412source "drivers/Kconfig"
2413
2414source "fs/Kconfig"
2415
2416source "arch/mips/Kconfig.debug"
2417
2418source "security/Kconfig"
2419
2420source "crypto/Kconfig"
2421
2422source "lib/Kconfig"
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