| blob | eb9cd9e0b534869d8f5d941c922dfb9215a92ea1 |
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_ARCH_KGDB
8 select HAVE_FUNCTION_TRACER
9 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
10 select HAVE_DYNAMIC_FTRACE
11 select HAVE_FTRACE_MCOUNT_RECORD
12 select HAVE_FUNCTION_GRAPH_TRACER
13 select HAVE_KPROBES
14 select HAVE_KRETPROBES
15 select RTC_LIB if !MACH_LOONGSON
16 select GENERIC_ATOMIC64 if !64BIT
18 mainmenu "Linux/MIPS Kernel Configuration"
20 menu "Machine selection"
22 config ZONE_DMA
23 bool
25 choice
26 prompt "System type"
27 default MIPS_BRCM
29 config MIPS_BRCM
30 bool "Broadcom MIPS based platforms"
31 select SYS_SUPPORTS_LITTLE_ENDIAN
32 select DMA_NONCOHERENT
33 select HW_HAS_PCI
34 select IRQ_CPU
35 select SYS_SUPPORTS_32BIT_KERNEL
36 select SYS_SUPPORTS_KGDB
37 select SYS_HAS_CPU_MIPS32_R1
38 select SYS_HAS_CPU_MIPS32_R2
39 select ARCH_SELECT_MEMORY_MODEL
40 select ARCH_SPARSEMEM_ENABLE
41 select CPU_SUPPORTS_HIGHMEM
42 select SYS_SUPPORTS_HIGHMEM
43 select SYS_HAS_EARLY_PRINTK
44 select EMBEDDED
45 select BOOT_RAW
46 select CFE
48 config MIPS_ALCHEMY
49 bool "Alchemy processor based machines"
50 select 64BIT_PHYS_ADDR
51 select CEVT_R4K_LIB
52 select CSRC_R4K_LIB
53 select IRQ_CPU
54 select SYS_HAS_CPU_MIPS32_R1
55 select SYS_SUPPORTS_32BIT_KERNEL
56 select SYS_SUPPORTS_APM_EMULATION
57 select GENERIC_GPIO
58 select ARCH_WANT_OPTIONAL_GPIOLIB
59 select SYS_SUPPORTS_ZBOOT
61 config AR7
62 bool "Texas Instruments AR7"
63 select BOOT_ELF32
64 select DMA_NONCOHERENT
65 select CEVT_R4K
66 select CSRC_R4K
67 select IRQ_CPU
68 select NO_EXCEPT_FILL
69 select SWAP_IO_SPACE
70 select SYS_HAS_CPU_MIPS32_R1
71 select SYS_HAS_EARLY_PRINTK
72 select SYS_SUPPORTS_32BIT_KERNEL
73 select SYS_SUPPORTS_LITTLE_ENDIAN
74 select SYS_SUPPORTS_ZBOOT_UART16550
75 select ARCH_REQUIRE_GPIOLIB
76 select GCD
77 select VLYNQ
78 help
79 Support for the Texas Instruments AR7 System-on-a-Chip
80 family: TNETD7100, 7200 and 7300.
82 config BCM47XX
83 bool "Broadcom BCM47XX based boards"
84 select CEVT_R4K
85 select CSRC_R4K
86 select DMA_NONCOHERENT
87 select HW_HAS_PCI
88 select IRQ_CPU
89 select SYS_HAS_CPU_MIPS32_R1
90 select SYS_SUPPORTS_32BIT_KERNEL
91 select SYS_SUPPORTS_LITTLE_ENDIAN
92 select SSB
93 select SSB_DRIVER_MIPS
94 select SSB_DRIVER_EXTIF
95 select SSB_EMBEDDED
96 select SSB_B43_PCI_BRIDGE if PCI
97 select SSB_PCICORE_HOSTMODE if PCI
98 select GENERIC_GPIO
99 select SYS_HAS_EARLY_PRINTK
100 select CFE
101 help
102 Support for BCM47XX based boards
104 config BCM63XX
105 bool "Broadcom BCM63XX based boards"
106 select CEVT_R4K
107 select CSRC_R4K
108 select DMA_NONCOHERENT
109 select IRQ_CPU
110 select SYS_HAS_CPU_MIPS32_R1
111 select SYS_SUPPORTS_32BIT_KERNEL
112 select SYS_SUPPORTS_BIG_ENDIAN
113 select SYS_HAS_EARLY_PRINTK
114 select SWAP_IO_SPACE
115 select ARCH_REQUIRE_GPIOLIB
116 help
117 Support for BCM63XX based boards
119 config MIPS_COBALT
120 bool "Cobalt Server"
121 select CEVT_R4K
122 select CSRC_R4K
123 select CEVT_GT641XX
124 select DMA_NONCOHERENT
125 select HW_HAS_PCI
126 select I8253
127 select I8259
128 select IRQ_CPU
129 select IRQ_GT641XX
130 select PCI_GT64XXX_PCI0
131 select PCI
132 select SYS_HAS_CPU_NEVADA
133 select SYS_HAS_EARLY_PRINTK
134 select SYS_SUPPORTS_32BIT_KERNEL
135 select SYS_SUPPORTS_64BIT_KERNEL
136 select SYS_SUPPORTS_LITTLE_ENDIAN
138 config MACH_DECSTATION
139 bool "DECstations"
140 select BOOT_ELF32
141 select CEVT_DS1287
142 select CEVT_R4K
143 select CSRC_IOASIC
144 select CSRC_R4K
145 select CPU_DADDI_WORKAROUNDS if 64BIT
146 select CPU_R4000_WORKAROUNDS if 64BIT
147 select CPU_R4400_WORKAROUNDS if 64BIT
148 select DMA_NONCOHERENT
149 select NO_IOPORT
150 select IRQ_CPU
151 select SYS_HAS_CPU_R3000
152 select SYS_HAS_CPU_R4X00
153 select SYS_SUPPORTS_32BIT_KERNEL
154 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
155 select SYS_SUPPORTS_LITTLE_ENDIAN
156 select SYS_SUPPORTS_128HZ
157 select SYS_SUPPORTS_256HZ
158 select SYS_SUPPORTS_1024HZ
159 help
160 This enables support for DEC's MIPS based workstations. For details
161 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
162 DECstation porting pages on <http://decstation.unix-ag.org/>.
164 If you have one of the following DECstation Models you definitely
165 want to choose R4xx0 for the CPU Type:
167 DECstation 5000/50
168 DECstation 5000/150
169 DECstation 5000/260
170 DECsystem 5900/260
172 otherwise choose R3000.
174 config MACH_JAZZ
175 bool "Jazz family of machines"
176 select ARC
177 select ARC32
178 select ARCH_MAY_HAVE_PC_FDC
179 select CEVT_R4K
180 select CSRC_R4K
181 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
182 select GENERIC_ISA_DMA
183 select IRQ_CPU
184 select I8253
185 select I8259
186 select ISA
187 select SYS_HAS_CPU_R4X00
188 select SYS_SUPPORTS_32BIT_KERNEL
189 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
190 select SYS_SUPPORTS_100HZ
191 help
192 This a family of machines based on the MIPS R4030 chipset which was
193 used by several vendors to build RISC/os and Windows NT workstations.
194 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
195 Olivetti M700-10 workstations.
197 config MACH_JZ4740
198 bool "Ingenic JZ4740 based machines"
199 select SYS_HAS_CPU_MIPS32_R1
200 select SYS_SUPPORTS_32BIT_KERNEL
201 select SYS_SUPPORTS_LITTLE_ENDIAN
202 select DMA_NONCOHERENT
203 select IRQ_CPU
204 select GENERIC_GPIO
205 select ARCH_REQUIRE_GPIOLIB
206 select SYS_HAS_EARLY_PRINTK
207 select HAVE_PWM
208 select HAVE_CLK
210 config 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
226 config 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.
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.
237 config 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_MIPS64_R2
261 select SYS_HAS_CPU_NEVADA
262 select SYS_HAS_CPU_RM7000
263 select SYS_HAS_EARLY_PRINTK
264 select SYS_SUPPORTS_32BIT_KERNEL
265 select SYS_SUPPORTS_64BIT_KERNEL
266 select SYS_SUPPORTS_BIG_ENDIAN
267 select SYS_SUPPORTS_LITTLE_ENDIAN
268 select SYS_SUPPORTS_MIPS_CMP
269 select SYS_SUPPORTS_MULTITHREADING
270 select SYS_SUPPORTS_HOTPLUG_CPU
271 select SYS_SUPPORTS_SMARTMIPS
272 select SYS_SUPPORTS_MICROMIPS
273 select SYS_SUPPORTS_ZBOOT
274 help
275 This enables support for the MIPS Technologies Malta evaluation
276 board.
278 config MIPS_SEAD3
279 bool "MIPS SEAD3 board"
280 select BOOT_ELF32
281 select BOOT_RAW
282 select CEVT_R4K
283 select CSRC_R4K
284 select DMA_NONCOHERENT
285 select IRQ_CPU
286 select IRQ_GIC
287 select MIPS_BOARDS_GEN
288 select MIPS_CPU_SCACHE
289 select MIPS_MSC
290 select SYS_HAS_CPU_MIPS32_R1
291 select SYS_HAS_CPU_MIPS32_R2
292 select SYS_HAS_CPU_MIPS64_R1
293 select SYS_HAS_EARLY_PRINTK
294 select SYS_SUPPORTS_32BIT_KERNEL
295 select SYS_SUPPORTS_64BIT_KERNEL
296 select SYS_SUPPORTS_BIG_ENDIAN
297 select SYS_SUPPORTS_LITTLE_ENDIAN
298 select SYS_SUPPORTS_MULTITHREADING
299 select SYS_SUPPORTS_SMARTMIPS
300 select SYS_SUPPORTS_MICROMIPS
301 help
302 This enables support for the MIPS Technologies SEAD3 evaluation
303 board.
305 config MIPS_SIM
306 bool 'MIPS simulator (MIPSsim)'
307 select CEVT_R4K
308 select CSRC_R4K
309 select DMA_NONCOHERENT
310 select SYS_HAS_EARLY_PRINTK
311 select IRQ_CPU
312 select BOOT_RAW
313 select SYS_HAS_CPU_MIPS32_R1
314 select SYS_HAS_CPU_MIPS32_R2
315 select SYS_HAS_EARLY_PRINTK
316 select SYS_SUPPORTS_32BIT_KERNEL
317 select SYS_SUPPORTS_BIG_ENDIAN
318 select SYS_SUPPORTS_MULTITHREADING
319 select SYS_SUPPORTS_LITTLE_ENDIAN
320 help
321 This option enables support for MIPS Technologies MIPSsim software
322 emulator.
324 config NEC_MARKEINS
325 bool "NEC EMMA2RH Mark-eins board"
326 select SOC_EMMA2RH
327 select HW_HAS_PCI
328 help
329 This enables support for the NEC Electronics Mark-eins boards.
331 config MACH_VR41XX
332 bool "NEC VR4100 series based machines"
333 select CEVT_R4K
334 select CSRC_R4K
335 select SYS_HAS_CPU_VR41XX
336 select ARCH_REQUIRE_GPIOLIB
338 config NXP_STB220
339 bool "NXP STB220 board"
340 select SOC_PNX833X
341 help
342 Support for NXP Semiconductors STB220 Development Board.
344 config NXP_STB225
345 bool "NXP 225 board"
346 select SOC_PNX833X
347 select SOC_PNX8335
348 help
349 Support for NXP Semiconductors STB225 Development Board.
351 config PNX8550_JBS
352 bool "NXP PNX8550 based JBS board"
353 select PNX8550
354 select SYS_SUPPORTS_LITTLE_ENDIAN
356 config PNX8550_STB810
357 bool "NXP PNX8550 based STB810 board"
358 select PNX8550
359 select SYS_SUPPORTS_LITTLE_ENDIAN
361 config PMC_MSP
362 bool "PMC-Sierra MSP chipsets"
363 depends on EXPERIMENTAL
364 select DMA_NONCOHERENT
365 select SWAP_IO_SPACE
366 select NO_EXCEPT_FILL
367 select BOOT_RAW
368 select SYS_HAS_CPU_MIPS32_R1
369 select SYS_HAS_CPU_MIPS32_R2
370 select SYS_SUPPORTS_32BIT_KERNEL
371 select SYS_SUPPORTS_BIG_ENDIAN
372 select IRQ_CPU
373 select SERIAL_8250
374 select SERIAL_8250_CONSOLE
375 help
376 This adds support for the PMC-Sierra family of Multi-Service
377 Processor System-On-A-Chips. These parts include a number
378 of integrated peripherals, interfaces and DSPs in addition to
379 a variety of MIPS cores.
381 config PMC_YOSEMITE
382 bool "PMC-Sierra Yosemite eval board"
383 select CEVT_R4K
384 select CSRC_R4K
385 select DMA_COHERENT
386 select HW_HAS_PCI
387 select IRQ_CPU
388 select IRQ_CPU_RM7K
389 select IRQ_CPU_RM9K
390 select SWAP_IO_SPACE
391 select SYS_HAS_CPU_RM9000
392 select SYS_HAS_EARLY_PRINTK
393 select SYS_SUPPORTS_32BIT_KERNEL
394 select SYS_SUPPORTS_64BIT_KERNEL
395 select SYS_SUPPORTS_BIG_ENDIAN
396 select SYS_SUPPORTS_HIGHMEM
397 select SYS_SUPPORTS_SMP
398 help
399 Yosemite is an evaluation board for the RM9000x2 processor
400 manufactured by PMC-Sierra.
402 config POWERTV
403 bool "Cisco PowerTV"
404 select BOOT_ELF32
405 select CEVT_R4K
406 select CPU_MIPSR2_IRQ_VI
407 select CPU_MIPSR2_IRQ_EI
408 select CSRC_POWERTV
409 select DMA_NONCOHERENT
410 select HW_HAS_PCI
411 select SYS_HAS_EARLY_PRINTK
412 select SYS_HAS_CPU_MIPS32_R2
413 select SYS_SUPPORTS_32BIT_KERNEL
414 select SYS_SUPPORTS_BIG_ENDIAN
415 select SYS_SUPPORTS_HIGHMEM
416 select USB_OHCI_LITTLE_ENDIAN
417 help
418 This enables support for the Cisco PowerTV Platform.
420 config SGI_IP22
421 bool "SGI IP22 (Indy/Indigo2)"
422 select ARC
423 select ARC32
424 select BOOT_ELF32
425 select CEVT_R4K
426 select CSRC_R4K
427 select DEFAULT_SGI_PARTITION
428 select DMA_NONCOHERENT
429 select HW_HAS_EISA
430 select I8253
431 select I8259
432 select IP22_CPU_SCACHE
433 select IRQ_CPU
434 select GENERIC_ISA_DMA_SUPPORT_BROKEN
435 select SGI_HAS_I8042
436 select SGI_HAS_INDYDOG
437 select SGI_HAS_HAL2
438 select SGI_HAS_SEEQ
439 select SGI_HAS_WD93
440 select SGI_HAS_ZILOG
441 select SWAP_IO_SPACE
442 select SYS_HAS_CPU_R4X00
443 select SYS_HAS_CPU_R5000
444 #
445 # Disable EARLY_PRINTK for now since it leads to overwritten prom
446 # memory during early boot on some machines.
447 #
448 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
449 # for a more details discussion
450 #
451 # select SYS_HAS_EARLY_PRINTK
452 select SYS_SUPPORTS_32BIT_KERNEL
453 select SYS_SUPPORTS_64BIT_KERNEL
454 select SYS_SUPPORTS_BIG_ENDIAN
455 help
456 This are the SGI Indy, Challenge S and Indigo2, as well as certain
457 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
458 that runs on these, say Y here.
460 config SGI_IP27
461 bool "SGI IP27 (Origin200/2000)"
462 select ARC
463 select ARC64
464 select BOOT_ELF64
465 select DEFAULT_SGI_PARTITION
466 select DMA_COHERENT
467 select SYS_HAS_EARLY_PRINTK
468 select HW_HAS_PCI
469 select NR_CPUS_DEFAULT_64
470 select SYS_HAS_CPU_R10000
471 select SYS_SUPPORTS_64BIT_KERNEL
472 select SYS_SUPPORTS_BIG_ENDIAN
473 select SYS_SUPPORTS_NUMA
474 select SYS_SUPPORTS_SMP
475 help
476 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
477 workstations. To compile a Linux kernel that runs on these, say Y
478 here.
480 config SGI_IP28
481 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
482 depends on EXPERIMENTAL
483 select ARC
484 select ARC64
485 select BOOT_ELF64
486 select CEVT_R4K
487 select CSRC_R4K
488 select DEFAULT_SGI_PARTITION
489 select DMA_NONCOHERENT
490 select GENERIC_ISA_DMA_SUPPORT_BROKEN
491 select IRQ_CPU
492 select HW_HAS_EISA
493 select I8253
494 select I8259
495 select SGI_HAS_I8042
496 select SGI_HAS_INDYDOG
497 select SGI_HAS_HAL2
498 select SGI_HAS_SEEQ
499 select SGI_HAS_WD93
500 select SGI_HAS_ZILOG
501 select SWAP_IO_SPACE
502 select SYS_HAS_CPU_R10000
503 #
504 # Disable EARLY_PRINTK for now since it leads to overwritten prom
505 # memory during early boot on some machines.
506 #
507 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
508 # for a more details discussion
509 #
510 # select SYS_HAS_EARLY_PRINTK
511 select SYS_SUPPORTS_64BIT_KERNEL
512 select SYS_SUPPORTS_BIG_ENDIAN
513 help
514 This is the SGI Indigo2 with R10000 processor. To compile a Linux
515 kernel that runs on these, say Y here.
517 config SGI_IP32
518 bool "SGI IP32 (O2)"
519 select ARC
520 select ARC32
521 select BOOT_ELF32
522 select CEVT_R4K
523 select CSRC_R4K
524 select DMA_NONCOHERENT
525 select HW_HAS_PCI
526 select IRQ_CPU
527 select R5000_CPU_SCACHE
528 select RM7000_CPU_SCACHE
529 select SYS_HAS_CPU_R5000
530 select SYS_HAS_CPU_R10000 if BROKEN
531 select SYS_HAS_CPU_RM7000
532 select SYS_HAS_CPU_NEVADA
533 select SYS_SUPPORTS_64BIT_KERNEL
534 select SYS_SUPPORTS_BIG_ENDIAN
535 help
536 If you want this kernel to run on SGI O2 workstation, say Y here.
538 config SIBYTE_CRHINE
539 bool "Sibyte BCM91120C-CRhine"
540 depends on EXPERIMENTAL
541 select BOOT_ELF32
542 select DMA_COHERENT
543 select SIBYTE_BCM1120
544 select SWAP_IO_SPACE
545 select SYS_HAS_CPU_SB1
546 select SYS_SUPPORTS_BIG_ENDIAN
547 select SYS_SUPPORTS_LITTLE_ENDIAN
549 config SIBYTE_CARMEL
550 bool "Sibyte BCM91120x-Carmel"
551 depends on EXPERIMENTAL
552 select BOOT_ELF32
553 select DMA_COHERENT
554 select SIBYTE_BCM1120
555 select SWAP_IO_SPACE
556 select SYS_HAS_CPU_SB1
557 select SYS_SUPPORTS_BIG_ENDIAN
558 select SYS_SUPPORTS_LITTLE_ENDIAN
560 config SIBYTE_CRHONE
561 bool "Sibyte BCM91125C-CRhone"
562 depends on EXPERIMENTAL
563 select BOOT_ELF32
564 select DMA_COHERENT
565 select SIBYTE_BCM1125
566 select SWAP_IO_SPACE
567 select SYS_HAS_CPU_SB1
568 select SYS_SUPPORTS_BIG_ENDIAN
569 select SYS_SUPPORTS_HIGHMEM
570 select SYS_SUPPORTS_LITTLE_ENDIAN
572 config SIBYTE_RHONE
573 bool "Sibyte BCM91125E-Rhone"
574 depends on EXPERIMENTAL
575 select BOOT_ELF32
576 select DMA_COHERENT
577 select SIBYTE_BCM1125H
578 select SWAP_IO_SPACE
579 select SYS_HAS_CPU_SB1
580 select SYS_SUPPORTS_BIG_ENDIAN
581 select SYS_SUPPORTS_LITTLE_ENDIAN
583 config SIBYTE_SWARM
584 bool "Sibyte BCM91250A-SWARM"
585 select BOOT_ELF32
586 select DMA_COHERENT
587 select HAVE_PATA_PLATFORM
588 select NR_CPUS_DEFAULT_2
589 select SIBYTE_SB1250
590 select SWAP_IO_SPACE
591 select SYS_HAS_CPU_SB1
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select SYS_SUPPORTS_HIGHMEM
594 select SYS_SUPPORTS_LITTLE_ENDIAN
595 select ZONE_DMA32 if 64BIT
597 config SIBYTE_LITTLESUR
598 bool "Sibyte BCM91250C2-LittleSur"
599 depends on EXPERIMENTAL
600 select BOOT_ELF32
601 select DMA_COHERENT
602 select HAVE_PATA_PLATFORM
603 select NR_CPUS_DEFAULT_2
604 select SIBYTE_SB1250
605 select SWAP_IO_SPACE
606 select SYS_HAS_CPU_SB1
607 select SYS_SUPPORTS_BIG_ENDIAN
608 select SYS_SUPPORTS_HIGHMEM
609 select SYS_SUPPORTS_LITTLE_ENDIAN
611 config SIBYTE_SENTOSA
612 bool "Sibyte BCM91250E-Sentosa"
613 depends on EXPERIMENTAL
614 select BOOT_ELF32
615 select DMA_COHERENT
616 select NR_CPUS_DEFAULT_2
617 select SIBYTE_SB1250
618 select SWAP_IO_SPACE
619 select SYS_HAS_CPU_SB1
620 select SYS_SUPPORTS_BIG_ENDIAN
621 select SYS_SUPPORTS_LITTLE_ENDIAN
623 config SIBYTE_BIGSUR
624 bool "Sibyte BCM91480B-BigSur"
625 select BOOT_ELF32
626 select DMA_COHERENT
627 select NR_CPUS_DEFAULT_4
628 select SIBYTE_BCM1x80
629 select SWAP_IO_SPACE
630 select SYS_HAS_CPU_SB1
631 select SYS_SUPPORTS_BIG_ENDIAN
632 select SYS_SUPPORTS_HIGHMEM
633 select SYS_SUPPORTS_LITTLE_ENDIAN
634 select ZONE_DMA32 if 64BIT
636 config SNI_RM
637 bool "SNI RM200/300/400"
638 select ARC if CPU_LITTLE_ENDIAN
639 select ARC32 if CPU_LITTLE_ENDIAN
640 select SNIPROM if CPU_BIG_ENDIAN
641 select ARCH_MAY_HAVE_PC_FDC
642 select BOOT_ELF32
643 select CEVT_R4K
644 select CSRC_R4K
645 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
646 select DMA_NONCOHERENT
647 select GENERIC_ISA_DMA
648 select HW_HAS_EISA
649 select HW_HAS_PCI
650 select IRQ_CPU
651 select I8253
652 select I8259
653 select ISA
654 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
655 select SYS_HAS_CPU_R4X00
656 select SYS_HAS_CPU_R5000
657 select SYS_HAS_CPU_R10000
658 select R5000_CPU_SCACHE
659 select SYS_HAS_EARLY_PRINTK
660 select SYS_SUPPORTS_32BIT_KERNEL
661 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
662 select SYS_SUPPORTS_BIG_ENDIAN
663 select SYS_SUPPORTS_HIGHMEM
664 select SYS_SUPPORTS_LITTLE_ENDIAN
665 help
666 The SNI RM200/300/400 are MIPS-based machines manufactured by
667 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
668 Technology and now in turn merged with Fujitsu. Say Y here to
669 support this machine type.
671 config MACH_TX39XX
672 bool "Toshiba TX39 series based machines"
674 config MACH_TX49XX
675 bool "Toshiba TX49 series based machines"
677 config MIKROTIK_RB532
678 bool "Mikrotik RB532 boards"
679 select CEVT_R4K
680 select CSRC_R4K
681 select DMA_NONCOHERENT
682 select HW_HAS_PCI
683 select IRQ_CPU
684 select SYS_HAS_CPU_MIPS32_R1
685 select SYS_SUPPORTS_32BIT_KERNEL
686 select SYS_SUPPORTS_LITTLE_ENDIAN
687 select SWAP_IO_SPACE
688 select BOOT_RAW
689 select ARCH_REQUIRE_GPIOLIB
690 help
691 Support the Mikrotik(tm) RouterBoard 532 series,
692 based on the IDT RC32434 SoC.
694 config WR_PPMC
695 bool "Wind River PPMC board"
696 select CEVT_R4K
697 select CSRC_R4K
698 select IRQ_CPU
699 select BOOT_ELF32
700 select DMA_NONCOHERENT
701 select HW_HAS_PCI
702 select PCI_GT64XXX_PCI0
703 select SWAP_IO_SPACE
704 select SYS_HAS_CPU_MIPS32_R1
705 select SYS_HAS_CPU_MIPS32_R2
706 select SYS_HAS_CPU_MIPS64_R1
707 select SYS_HAS_CPU_NEVADA
708 select SYS_HAS_CPU_RM7000
709 select SYS_SUPPORTS_32BIT_KERNEL
710 select SYS_SUPPORTS_64BIT_KERNEL
711 select SYS_SUPPORTS_BIG_ENDIAN
712 select SYS_SUPPORTS_LITTLE_ENDIAN
713 help
714 This enables support for the Wind River MIPS32 4KC PPMC evaluation
715 board, which is based on GT64120 bridge chip.
717 config CAVIUM_OCTEON_SIMULATOR
718 bool "Cavium Networks Octeon Simulator"
719 select CEVT_R4K
720 select 64BIT_PHYS_ADDR
721 select DMA_COHERENT
722 select SYS_SUPPORTS_64BIT_KERNEL
723 select SYS_SUPPORTS_BIG_ENDIAN
724 select SYS_SUPPORTS_HIGHMEM
725 select SYS_SUPPORTS_HOTPLUG_CPU
726 select SYS_HAS_CPU_CAVIUM_OCTEON
727 help
728 The Octeon simulator is software performance model of the Cavium
729 Octeon Processor. It supports simulating Octeon processors on x86
730 hardware.
732 config CAVIUM_OCTEON_REFERENCE_BOARD
733 bool "Cavium Networks Octeon reference board"
734 select CEVT_R4K
735 select 64BIT_PHYS_ADDR
736 select DMA_COHERENT
737 select SYS_SUPPORTS_64BIT_KERNEL
738 select SYS_SUPPORTS_BIG_ENDIAN
739 select SYS_SUPPORTS_HIGHMEM
740 select SYS_SUPPORTS_HOTPLUG_CPU
741 select SYS_HAS_EARLY_PRINTK
742 select SYS_HAS_CPU_CAVIUM_OCTEON
743 select SWAP_IO_SPACE
744 select HW_HAS_PCI
745 select ARCH_SUPPORTS_MSI
746 help
747 This option supports all of the Octeon reference boards from Cavium
748 Networks. It builds a kernel that dynamically determines the Octeon
749 CPU type and supports all known board reference implementations.
750 Some of the supported boards are:
751 EBT3000
752 EBH3000
753 EBH3100
754 Thunder
755 Kodama
756 Hikari
757 Say Y here for most Octeon reference boards.
759 endchoice
761 source "arch/mips/brcm-boards/Kconfig"
762 source "arch/mips/alchemy/Kconfig"
763 source "arch/mips/bcm63xx/Kconfig"
764 source "arch/mips/jazz/Kconfig"
765 source "arch/mips/jz4740/Kconfig"
766 source "arch/mips/lasat/Kconfig"
767 source "arch/mips/pmc-sierra/Kconfig"
768 source "arch/mips/powertv/Kconfig"
769 source "arch/mips/sgi-ip27/Kconfig"
770 source "arch/mips/sibyte/Kconfig"
771 source "arch/mips/txx9/Kconfig"
772 source "arch/mips/vr41xx/Kconfig"
773 source "arch/mips/cavium-octeon/Kconfig"
774 source "arch/mips/loongson/Kconfig"
776 endmenu
778 config RWSEM_GENERIC_SPINLOCK
779 bool
780 default y
782 config RWSEM_XCHGADD_ALGORITHM
783 bool
785 config ARCH_HAS_ILOG2_U32
786 bool
787 default n
789 config ARCH_HAS_ILOG2_U64
790 bool
791 default n
793 config ARCH_SUPPORTS_OPROFILE
794 bool
795 default y if !MIPS_MT_SMTC
797 config GENERIC_FIND_NEXT_BIT
798 bool
799 default y
801 config GENERIC_HWEIGHT
802 bool
803 default y
805 config GENERIC_CALIBRATE_DELAY
806 bool
807 default y
809 config GENERIC_CLOCKEVENTS
810 bool
811 default y
813 config GENERIC_CMOS_UPDATE
814 bool
815 default y
817 config SCHED_OMIT_FRAME_POINTER
818 bool
819 default y
821 # config GENERIC_HARDIRQS_NO__DO_IRQ
822 # bool
823 # default y
825 #
826 # Select some configuration options automatically based on user selections.
827 #
828 config ARC
829 bool
831 config ARCH_MAY_HAVE_PC_FDC
832 bool
834 config BOOT_RAW
835 bool
837 config CEVT_BCM1480
838 bool
840 config CEVT_DS1287
841 bool
843 config CEVT_GT641XX
844 bool
846 config CEVT_R4K_LIB
847 bool
849 config CEVT_R4K
850 select CEVT_R4K_LIB
851 bool
853 config CEVT_SB1250
854 bool
856 config CEVT_TXX9
857 bool
859 config CSRC_BCM1480
860 bool
862 config CSRC_IOASIC
863 bool
865 config CSRC_POWERTV
866 bool
868 config CSRC_R4K_LIB
869 bool
871 config CSRC_R4K
872 select CSRC_R4K_LIB
873 bool
875 config CSRC_SB1250
876 bool
878 config GPIO_TXX9
879 select GENERIC_GPIO
880 select ARCH_REQUIRE_GPIOLIB
881 bool
883 config CFE
884 bool
886 config DMA_COHERENT
887 bool
889 config DMA_NONCOHERENT
890 bool
891 select NEED_DMA_MAP_STATE
893 config NEED_DMA_MAP_STATE
894 bool
896 config SYS_HAS_EARLY_PRINTK
897 bool
899 config HOTPLUG_CPU
900 bool "Support for hot-pluggable CPUs"
901 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
902 help
903 Say Y here to allow turning CPUs off and on. CPUs can be
904 controlled through /sys/devices/system/cpu.
905 (Note: power management support will enable this option
906 automatically on SMP systems. )
907 Say N if you want to disable CPU hotplug.
909 config SYS_SUPPORTS_HOTPLUG_CPU
910 bool
912 config I8259
913 bool
915 config MIPS_BONITO64
916 bool
918 config MIPS_MSC
919 bool
921 config MIPS_NILE4
922 bool
924 config MIPS_DISABLE_OBSOLETE_IDE
925 bool
927 config SYNC_R4K
928 bool
930 config NO_IOPORT
931 def_bool n
933 config GENERIC_ISA_DMA
934 bool
935 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
936 select ISA_DMA_API
938 config GENERIC_ISA_DMA_SUPPORT_BROKEN
939 bool
940 select GENERIC_ISA_DMA
942 config ISA_DMA_API
943 bool
945 config GENERIC_GPIO
946 bool
948 #
949 # Endianess selection. Sufficiently obscure so many users don't know what to
950 # answer,so we try hard to limit the available choices. Also the use of a
951 # choice statement should be more obvious to the user.
952 #
953 choice
954 prompt "Endianess selection"
955 help
956 Some MIPS machines can be configured for either little or big endian
957 byte order. These modes require different kernels and a different
958 Linux distribution. In general there is one preferred byteorder for a
959 particular system but some systems are just as commonly used in the
960 one or the other endianness.
962 config CPU_BIG_ENDIAN
963 bool "Big endian"
964 depends on SYS_SUPPORTS_BIG_ENDIAN
966 config CPU_LITTLE_ENDIAN
967 bool "Little endian"
968 depends on SYS_SUPPORTS_LITTLE_ENDIAN
969 help
971 endchoice
973 config EXPORT_UASM
974 bool
976 config SYS_SUPPORTS_APM_EMULATION
977 bool
979 config SYS_SUPPORTS_BIG_ENDIAN
980 bool
982 config SYS_SUPPORTS_LITTLE_ENDIAN
983 bool
985 config SYS_SUPPORTS_HUGETLBFS
986 bool
987 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
988 default y
990 config IRQ_CPU
991 bool
993 config IRQ_CPU_RM7K
994 bool
996 config IRQ_CPU_RM9K
997 bool
999 config IRQ_MSP_SLP
1000 bool
1002 config IRQ_MSP_CIC
1003 bool
1005 config IRQ_TXX9
1006 bool
1008 config IRQ_GT641XX
1009 bool
1011 config IRQ_GIC
1012 bool
1014 config IRQ_CPU_OCTEON
1015 bool
1017 config MIPS_BOARDS_GEN
1018 bool
1020 config PCI_GT64XXX_PCI0
1021 bool
1023 config NO_EXCEPT_FILL
1024 bool
1026 config MIPS_RM9122
1027 bool
1028 select SERIAL_RM9000
1030 config SOC_EMMA2RH
1031 bool
1032 select CEVT_R4K
1033 select CSRC_R4K
1034 select DMA_NONCOHERENT
1035 select IRQ_CPU
1036 select SWAP_IO_SPACE
1037 select SYS_HAS_CPU_R5500
1038 select SYS_SUPPORTS_32BIT_KERNEL
1039 select SYS_SUPPORTS_64BIT_KERNEL
1040 select SYS_SUPPORTS_BIG_ENDIAN
1042 config SOC_PNX833X
1043 bool
1044 select CEVT_R4K
1045 select CSRC_R4K
1046 select IRQ_CPU
1047 select DMA_NONCOHERENT
1048 select SYS_HAS_CPU_MIPS32_R2
1049 select SYS_SUPPORTS_32BIT_KERNEL
1050 select SYS_SUPPORTS_LITTLE_ENDIAN
1051 select SYS_SUPPORTS_BIG_ENDIAN
1052 select GENERIC_GPIO
1053 select CPU_MIPSR2_IRQ_VI
1055 config SOC_PNX8335
1056 bool
1057 select SOC_PNX833X
1059 config PNX8550
1060 bool
1061 select SOC_PNX8550
1063 config SOC_PNX8550
1064 bool
1065 select DMA_NONCOHERENT
1066 select HW_HAS_PCI
1067 select SYS_HAS_CPU_MIPS32_R1
1068 select SYS_HAS_EARLY_PRINTK
1069 select SYS_SUPPORTS_32BIT_KERNEL
1070 select GENERIC_GPIO
1072 config SWAP_IO_SPACE
1073 bool
1075 config SERIAL_RM9000
1076 bool
1078 config SGI_HAS_INDYDOG
1079 bool
1081 config SGI_HAS_HAL2
1082 bool
1084 config SGI_HAS_SEEQ
1085 bool
1087 config SGI_HAS_WD93
1088 bool
1090 config SGI_HAS_ZILOG
1091 bool
1093 config SGI_HAS_I8042
1094 bool
1096 config DEFAULT_SGI_PARTITION
1097 bool
1099 config ARC32
1100 bool
1102 config SNIPROM
1103 bool
1105 config BOOT_ELF32
1106 bool
1108 config MIPS_L1_CACHE_SHIFT
1109 int
1110 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1111 default "6" if MIPS_CPU_SCACHE
1112 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1113 default "5"
1115 config HAVE_STD_PC_SERIAL_PORT
1116 bool
1118 config ARC_CONSOLE
1119 bool "ARC console support"
1120 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1122 config ARC_MEMORY
1123 bool
1124 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1125 default y
1127 config ARC_PROMLIB
1128 bool
1129 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1130 default y
1132 config ARC64
1133 bool
1135 config BOOT_ELF64
1136 bool
1138 menu "CPU selection"
1140 choice
1141 prompt "CPU type"
1142 default CPU_R4X00
1144 config CPU_LOONGSON2E
1145 bool "Loongson 2E"
1146 depends on SYS_HAS_CPU_LOONGSON2E
1147 select CPU_LOONGSON2
1148 help
1149 The Loongson 2E processor implements the MIPS III instruction set
1150 with many extensions.
1152 It has an internal FPGA northbridge, which is compatiable to
1153 bonito64.
1155 config CPU_LOONGSON2F
1156 bool "Loongson 2F"
1157 depends on SYS_HAS_CPU_LOONGSON2F
1158 select CPU_LOONGSON2
1159 select GENERIC_GPIO
1160 select ARCH_REQUIRE_GPIOLIB
1161 help
1162 The Loongson 2F processor implements the MIPS III instruction set
1163 with many extensions.
1165 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1166 have a similar programming interface with FPGA northbridge used in
1167 Loongson2E.
1169 config CPU_MIPS32_R1
1170 bool "MIPS32 Release 1"
1171 depends on SYS_HAS_CPU_MIPS32_R1
1172 select CPU_HAS_PREFETCH
1173 select CPU_SUPPORTS_32BIT_KERNEL
1174 select CPU_SUPPORTS_HIGHMEM
1175 help
1176 Choose this option to build a kernel for release 1 or later of the
1177 MIPS32 architecture. Most modern embedded systems with a 32-bit
1178 MIPS processor are based on a MIPS32 processor. If you know the
1179 specific type of processor in your system, choose those that one
1180 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1181 Release 2 of the MIPS32 architecture is available since several
1182 years so chances are you even have a MIPS32 Release 2 processor
1183 in which case you should choose CPU_MIPS32_R2 instead for better
1184 performance.
1186 config CPU_MIPS32_R2
1187 bool "MIPS32 Release 2"
1188 depends on SYS_HAS_CPU_MIPS32_R2
1189 select CPU_HAS_PREFETCH
1190 select CPU_SUPPORTS_32BIT_KERNEL
1191 select CPU_SUPPORTS_HIGHMEM
1192 help
1193 Choose this option to build a kernel for release 2 or later of the
1194 MIPS32 architecture. Most modern embedded systems with a 32-bit
1195 MIPS processor are based on a MIPS32 processor. If you know the
1196 specific type of processor in your system, choose those that one
1197 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1199 config CPU_MIPS64_R1
1200 bool "MIPS64 Release 1"
1201 depends on SYS_HAS_CPU_MIPS64_R1
1202 select CPU_HAS_PREFETCH
1203 select CPU_SUPPORTS_32BIT_KERNEL
1204 select CPU_SUPPORTS_64BIT_KERNEL
1205 select CPU_SUPPORTS_HIGHMEM
1206 select CPU_SUPPORTS_HUGEPAGES
1207 help
1208 Choose this option to build a kernel for release 1 or later of the
1209 MIPS64 architecture. Many modern embedded systems with a 64-bit
1210 MIPS processor are based on a MIPS64 processor. If you know the
1211 specific type of processor in your system, choose those that one
1212 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1213 Release 2 of the MIPS64 architecture is available since several
1214 years so chances are you even have a MIPS64 Release 2 processor
1215 in which case you should choose CPU_MIPS64_R2 instead for better
1216 performance.
1218 config CPU_MIPS64_R2
1219 bool "MIPS64 Release 2"
1220 depends on SYS_HAS_CPU_MIPS64_R2
1221 select CPU_HAS_PREFETCH
1222 select CPU_SUPPORTS_32BIT_KERNEL
1223 select CPU_SUPPORTS_64BIT_KERNEL
1224 select CPU_SUPPORTS_HIGHMEM
1225 select CPU_SUPPORTS_HUGEPAGES
1226 help
1227 Choose this option to build a kernel for release 2 or later of the
1228 MIPS64 architecture. Many modern embedded systems with a 64-bit
1229 MIPS processor are based on a MIPS64 processor. If you know the
1230 specific type of processor in your system, choose those that one
1231 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1233 config CPU_R3000
1234 bool "R3000"
1235 depends on SYS_HAS_CPU_R3000
1236 select CPU_HAS_WB
1237 select CPU_SUPPORTS_32BIT_KERNEL
1238 select CPU_SUPPORTS_HIGHMEM
1239 help
1240 Please make sure to pick the right CPU type. Linux/MIPS is not
1241 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1242 *not* work on R4000 machines and vice versa. However, since most
1243 of the supported machines have an R4000 (or similar) CPU, R4x00
1244 might be a safe bet. If the resulting kernel does not work,
1245 try to recompile with R3000.
1247 config CPU_TX39XX
1248 bool "R39XX"
1249 depends on SYS_HAS_CPU_TX39XX
1250 select CPU_SUPPORTS_32BIT_KERNEL
1252 config CPU_VR41XX
1253 bool "R41xx"
1254 depends on SYS_HAS_CPU_VR41XX
1255 select CPU_SUPPORTS_32BIT_KERNEL
1256 select CPU_SUPPORTS_64BIT_KERNEL
1257 help
1258 The options selects support for the NEC VR4100 series of processors.
1259 Only choose this option if you have one of these processors as a
1260 kernel built with this option will not run on any other type of
1261 processor or vice versa.
1263 config CPU_R4300
1264 bool "R4300"
1265 depends on SYS_HAS_CPU_R4300
1266 select CPU_SUPPORTS_32BIT_KERNEL
1267 select CPU_SUPPORTS_64BIT_KERNEL
1268 help
1269 MIPS Technologies R4300-series processors.
1271 config CPU_R4X00
1272 bool "R4x00"
1273 depends on SYS_HAS_CPU_R4X00
1274 select CPU_SUPPORTS_32BIT_KERNEL
1275 select CPU_SUPPORTS_64BIT_KERNEL
1276 help
1277 MIPS Technologies R4000-series processors other than 4300, including
1278 the R4000, R4400, R4600, and 4700.
1280 config CPU_TX49XX
1281 bool "R49XX"
1282 depends on SYS_HAS_CPU_TX49XX
1283 select CPU_HAS_PREFETCH
1284 select CPU_SUPPORTS_32BIT_KERNEL
1285 select CPU_SUPPORTS_64BIT_KERNEL
1287 config CPU_R5000
1288 bool "R5000"
1289 depends on SYS_HAS_CPU_R5000
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_64BIT_KERNEL
1292 help
1293 MIPS Technologies R5000-series processors other than the Nevada.
1295 config CPU_R5432
1296 bool "R5432"
1297 depends on SYS_HAS_CPU_R5432
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_64BIT_KERNEL
1301 config CPU_R5500
1302 bool "R5500"
1303 depends on SYS_HAS_CPU_R5500
1304 select CPU_SUPPORTS_32BIT_KERNEL
1305 select CPU_SUPPORTS_64BIT_KERNEL
1306 select CPU_SUPPORTS_HUGEPAGES
1307 help
1308 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1309 instruction set.
1311 config CPU_R6000
1312 bool "R6000"
1313 depends on EXPERIMENTAL
1314 depends on SYS_HAS_CPU_R6000
1315 select CPU_SUPPORTS_32BIT_KERNEL
1316 help
1317 MIPS Technologies R6000 and R6000A series processors. Note these
1318 processors are extremely rare and the support for them is incomplete.
1320 config CPU_NEVADA
1321 bool "RM52xx"
1322 depends on SYS_HAS_CPU_NEVADA
1323 select CPU_SUPPORTS_32BIT_KERNEL
1324 select CPU_SUPPORTS_64BIT_KERNEL
1325 help
1326 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1328 config CPU_R8000
1329 bool "R8000"
1330 depends on EXPERIMENTAL
1331 depends on SYS_HAS_CPU_R8000
1332 select CPU_HAS_PREFETCH
1333 select CPU_SUPPORTS_64BIT_KERNEL
1334 help
1335 MIPS Technologies R8000 processors. Note these processors are
1336 uncommon and the support for them is incomplete.
1338 config CPU_R10000
1339 bool "R10000"
1340 depends on SYS_HAS_CPU_R10000
1341 select CPU_HAS_PREFETCH
1342 select CPU_SUPPORTS_32BIT_KERNEL
1343 select CPU_SUPPORTS_64BIT_KERNEL
1344 select CPU_SUPPORTS_HIGHMEM
1345 help
1346 MIPS Technologies R10000-series processors.
1348 config CPU_RM7000
1349 bool "RM7000"
1350 depends on SYS_HAS_CPU_RM7000
1351 select CPU_HAS_PREFETCH
1352 select CPU_SUPPORTS_32BIT_KERNEL
1353 select CPU_SUPPORTS_64BIT_KERNEL
1354 select CPU_SUPPORTS_HIGHMEM
1356 config CPU_RM9000
1357 bool "RM9000"
1358 depends on SYS_HAS_CPU_RM9000
1359 select CPU_HAS_PREFETCH
1360 select CPU_SUPPORTS_32BIT_KERNEL
1361 select CPU_SUPPORTS_64BIT_KERNEL
1362 select CPU_SUPPORTS_HIGHMEM
1363 select WEAK_ORDERING
1365 config CPU_SB1
1366 bool "SB1"
1367 depends on SYS_HAS_CPU_SB1
1368 select CPU_SUPPORTS_32BIT_KERNEL
1369 select CPU_SUPPORTS_64BIT_KERNEL
1370 select CPU_SUPPORTS_HIGHMEM
1371 select WEAK_ORDERING
1373 config CPU_CAVIUM_OCTEON
1374 bool "Cavium Octeon processor"
1375 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1376 select IRQ_CPU
1377 select IRQ_CPU_OCTEON
1378 select CPU_HAS_PREFETCH
1379 select CPU_SUPPORTS_64BIT_KERNEL
1380 select SYS_SUPPORTS_SMP
1381 select NR_CPUS_DEFAULT_16
1382 select WEAK_ORDERING
1383 select CPU_SUPPORTS_HIGHMEM
1384 select CPU_SUPPORTS_HUGEPAGES
1385 help
1386 The Cavium Octeon processor is a highly integrated chip containing
1387 many ethernet hardware widgets for networking tasks. The processor
1388 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1389 Full details can be found at http://www.caviumnetworks.com.
1391 endchoice
1393 if CPU_LOONGSON2F
1394 config CPU_NOP_WORKAROUNDS
1395 bool
1397 config CPU_JUMP_WORKAROUNDS
1398 bool
1400 config CPU_LOONGSON2F_WORKAROUNDS
1401 bool "Loongson 2F Workarounds"
1402 default y
1403 select CPU_NOP_WORKAROUNDS
1404 select CPU_JUMP_WORKAROUNDS
1405 help
1406 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1407 require workarounds. Without workarounds the system may hang
1408 unexpectedly. For more information please refer to the gas
1409 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1411 Loongson 2F03 and later have fixed these issues and no workarounds
1412 are needed. The workarounds have no significant side effect on them
1413 but may decrease the performance of the system so this option should
1414 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1415 systems.
1417 If unsure, please say Y.
1418 endif # CPU_LOONGSON2F
1420 config SYS_SUPPORTS_ZBOOT
1421 bool
1422 select HAVE_KERNEL_GZIP
1423 select HAVE_KERNEL_BZIP2
1424 select HAVE_KERNEL_LZMA
1425 select HAVE_KERNEL_LZO
1427 config SYS_SUPPORTS_ZBOOT_UART16550
1428 bool
1429 select SYS_SUPPORTS_ZBOOT
1431 config CPU_LOONGSON2
1432 bool
1433 select CPU_SUPPORTS_32BIT_KERNEL
1434 select CPU_SUPPORTS_64BIT_KERNEL
1435 select CPU_SUPPORTS_HIGHMEM
1437 config SYS_HAS_CPU_LOONGSON2E
1438 bool
1440 config SYS_HAS_CPU_LOONGSON2F
1441 bool
1442 select CPU_SUPPORTS_CPUFREQ
1443 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1444 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1446 config SYS_HAS_CPU_MIPS32_R1
1447 bool
1449 config SYS_HAS_CPU_MIPS32_R2
1450 bool
1452 config SYS_HAS_CPU_MIPS64_R1
1453 bool
1455 config SYS_HAS_CPU_MIPS64_R2
1456 bool
1458 config SYS_HAS_CPU_R3000
1459 bool
1461 config SYS_HAS_CPU_TX39XX
1462 bool
1464 config SYS_HAS_CPU_VR41XX
1465 bool
1467 config SYS_HAS_CPU_R4300
1468 bool
1470 config SYS_HAS_CPU_R4X00
1471 bool
1473 config SYS_HAS_CPU_TX49XX
1474 bool
1476 config SYS_HAS_CPU_R5000
1477 bool
1479 config SYS_HAS_CPU_R5432
1480 bool
1482 config SYS_HAS_CPU_R5500
1483 bool
1485 config SYS_HAS_CPU_R6000
1486 bool
1488 config SYS_HAS_CPU_NEVADA
1489 bool
1491 config SYS_HAS_CPU_R8000
1492 bool
1494 config SYS_HAS_CPU_R10000
1495 bool
1497 config SYS_HAS_CPU_RM7000
1498 bool
1500 config SYS_HAS_CPU_RM9000
1501 bool
1503 config SYS_HAS_CPU_SB1
1504 bool
1506 config SYS_HAS_CPU_CAVIUM_OCTEON
1507 bool
1509 #
1510 # CPU may reorder R->R, R->W, W->R, W->W
1511 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1512 #
1513 config WEAK_ORDERING
1514 bool
1516 #
1517 # CPU may reorder reads and writes beyond LL/SC
1518 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1519 #
1520 config WEAK_REORDERING_BEYOND_LLSC
1521 bool
1522 endmenu
1524 #
1525 # These two indicate any level of the MIPS32 and MIPS64 architecture
1526 #
1527 config CPU_MIPS32
1528 bool
1529 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1531 config CPU_MIPS64
1532 bool
1533 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1535 #
1536 # These two indicate the revision of the architecture, either Release 1 or Release 2
1537 #
1538 config CPU_MIPSR1
1539 bool
1540 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1542 config CPU_MIPSR2
1543 bool
1544 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1546 config SYS_SUPPORTS_32BIT_KERNEL
1547 bool
1548 config SYS_SUPPORTS_64BIT_KERNEL
1549 bool
1550 config CPU_SUPPORTS_32BIT_KERNEL
1551 bool
1552 config CPU_SUPPORTS_64BIT_KERNEL
1553 bool
1554 config CPU_SUPPORTS_CPUFREQ
1555 bool
1556 config CPU_SUPPORTS_ADDRWINCFG
1557 bool
1558 config CPU_SUPPORTS_HUGEPAGES
1559 bool
1560 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1561 bool
1562 config MIPS_PGD_C0_CONTEXT
1563 bool
1564 default y if 64BIT && CPU_MIPSR2
1566 #
1567 # Set to y for ptrace access to watch registers.
1568 #
1569 config HARDWARE_WATCHPOINTS
1570 bool
1571 default y if CPU_MIPSR1 || CPU_MIPSR2
1573 menu "Kernel type"
1575 choice
1576 prompt "Kernel code model"
1577 help
1578 You should only select this option if you have a workload that
1579 actually benefits from 64-bit processing or if your machine has
1580 large memory. You will only be presented a single option in this
1581 menu if your system does not support both 32-bit and 64-bit kernels.
1583 config 32BIT
1584 bool "32-bit kernel"
1585 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1586 select TRAD_SIGNALS
1587 help
1588 Select this option if you want to build a 32-bit kernel.
1589 config 64BIT
1590 bool "64-bit kernel"
1591 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1592 select HAVE_SYSCALL_WRAPPERS
1593 help
1594 Select this option if you want to build a 64-bit kernel.
1596 endchoice
1598 config 64BIT_PHYS_ADDR
1599 bool "Kernel supports 64 bit physical addresses" if EXPERIMENTAL
1600 depends on 64BIT
1601 help
1602 Defines 64 bit physical addresses in kernel.
1603 Increases page table sizes.
1605 It is an alternative for HIGHMEM usage of huge physical memory.
1606 Requires 64bit capable CPU and 64 bit kernel code model.
1608 Note: without this option kernel can support up to 4GB physical
1609 memory for 4KB pages and up to 64GB for 64KB pages.
1611 config ARCH_PHYS_ADDR_T_64BIT
1612 def_bool 64BIT_PHYS_ADDR
1614 choice
1615 prompt "Kernel page size"
1616 default PAGE_SIZE_4KB
1618 config PAGE_SIZE_4KB
1619 bool "4kB"
1620 depends on !CPU_LOONGSON2
1621 help
1622 This option select the standard 4kB Linux page size. On some
1623 R3000-family processors this is the only available page size. Using
1624 4kB page size will minimize memory consumption and is therefore
1625 recommended for low memory systems.
1627 config PAGE_SIZE_8KB
1628 bool "8kB"
1629 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1630 help
1631 Using 8kB page size will result in higher performance kernel at
1632 the price of higher memory consumption. This option is available
1633 only on R8000 and cnMIPS processors. Note that you will need a
1634 suitable Linux distribution to support this.
1636 config PAGE_SIZE_16KB
1637 bool "16kB"
1638 depends on !CPU_R3000 && !CPU_TX39XX
1639 help
1640 Using 16kB page size will result in higher performance kernel at
1641 the price of higher memory consumption. This option is available on
1642 all non-R3000 family processors. Note that you will need a suitable
1643 Linux distribution to support this.
1645 config PAGE_SIZE_32KB
1646 bool "32kB"
1647 depends on CPU_CAVIUM_OCTEON
1648 help
1649 Using 32kB page size will result in higher performance kernel at
1650 the price of higher memory consumption. This option is available
1651 only on cnMIPS cores. Note that you will need a suitable Linux
1652 distribution to support this.
1654 config PAGE_SIZE_64KB
1655 bool "64kB"
1656 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1657 help
1658 Using 64kB page size will result in higher performance kernel at
1659 the price of higher memory consumption. This option is available on
1660 all non-R3000 family processor. Not that at the time of this
1661 writing this option is still high experimental.
1663 endchoice
1665 choice
1666 prompt "Clock source"
1667 depends on MIPS_MALTA || MIPS_SEAD3
1668 default CSRC_R4K
1670 config CSRC_R4K
1671 bool "R4K count/compare counter"
1672 depends on !HOTPLUG_CPU
1673 help
1674 Use the R4K count/compare counter for the kernel clock source.
1676 config CSRC_GIC
1677 bool "GIC global counter"
1678 help
1679 Use the GIC global counter for the kernel clock source.
1681 endchoice
1683 config BOARD_SCACHE
1684 bool
1686 config IP22_CPU_SCACHE
1687 bool
1688 select BOARD_SCACHE
1690 #
1691 # Support for a MIPS32 / MIPS64 style S-caches
1692 #
1693 config MIPS_CPU_SCACHE
1694 bool
1695 select BOARD_SCACHE
1697 config R5000_CPU_SCACHE
1698 bool
1699 select BOARD_SCACHE
1701 config RM7000_CPU_SCACHE
1702 bool
1703 select BOARD_SCACHE
1705 config SIBYTE_DMA_PAGEOPS
1706 bool "Use DMA to clear/copy pages"
1707 depends on CPU_SB1
1708 help
1709 Instead of using the CPU to zero and copy pages, use a Data Mover
1710 channel. These DMA channels are otherwise unused by the standard
1711 SiByte Linux port. Seems to give a small performance benefit.
1713 config CPU_HAS_PREFETCH
1714 bool
1716 choice
1717 prompt "MIPS MT options"
1719 config MIPS_MT_DISABLED
1720 bool "Disable multithreading support."
1721 help
1722 Use this option if your workload can't take advantage of
1723 MIPS hardware multithreading support. On systems that don't have
1724 the option of an MT-enabled processor this option will be the only
1725 option in this menu.
1727 config MIPS_MT_SMP
1728 bool "Use 1 TC on each available VPE for SMP"
1729 depends on SYS_SUPPORTS_MULTITHREADING && !MIPS_SEAD3
1730 select CPU_MIPSR2_IRQ_VI
1731 select CPU_MIPSR2_IRQ_EI
1732 select MIPS_MT
1733 select NR_CPUS_DEFAULT_2
1734 select SMP
1735 select SYS_SUPPORTS_SCHED_SMT if SMP
1736 select SYS_SUPPORTS_SMP
1737 select SMP_UP
1738 help
1739 Virtual SMP uses the processor's VPEs to implement virtual
1740 processors. In currently available configurations of the 34K
1741 processor this allows for a dual processor. Both processors will
1742 share the same primary caches and each will obtain the half of
1743 the TLB for its own exclusive use. For a layman this model can
1744 be described as similar to what Intel calls Hyperthreading. At
1745 some point MIPS marketing decided to renamed to SMVP but the
1746 renaming hasn't caught on as of yet.
1748 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1750 config MIPS_MT_SMTC
1751 bool "SMTC: Use all TCs on all VPEs for SMP"
1752 depends on CPU_MIPS32_R2
1753 #depends on CPU_MIPS64_R2 # once there is hardware ...
1754 depends on SYS_SUPPORTS_MULTITHREADING
1755 select CPU_MIPSR2_IRQ_VI
1756 select CPU_MIPSR2_IRQ_EI
1757 select MIPS_MT
1758 select NR_CPUS_DEFAULT_8
1759 select SMP
1760 select SYS_SUPPORTS_SMP
1761 select SMP_UP
1762 help
1763 SMTC is presenting the available TCs of the core as processors to
1764 Linux. On currently available 34K processors this means a Linux
1765 system will see up to 5 processors. The implementation of the SMTC
1766 kernel differs significantly from VSMP. It was found that SMTC cannot
1767 efficiently coexist in the same kernel binary with other modes of
1768 multiprocessor support, so enabling SMTC is a compile time decision.
1769 The choice between VSMP and SMTC is a bit delicate as it is affected
1770 by clockspeed, memory speed, the specific workload and other factors.
1771 As such the choice should not be made on an evaluation board such as
1772 the Malta but preferably on final target hardware.
1774 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1776 endchoice
1778 config MIPS_MT
1779 bool
1781 config SCHED_SMT
1782 bool "SMT (multithreading) scheduler support"
1783 depends on SYS_SUPPORTS_SCHED_SMT
1784 default n
1785 help
1786 SMT scheduler support improves the CPU scheduler's decision making
1787 when dealing with MIPS MT enabled cores at a cost of slightly
1788 increased overhead in some places. If unsure say N here.
1790 config SYS_SUPPORTS_SCHED_SMT
1791 bool
1793 config SYS_SUPPORTS_MULTITHREADING
1794 bool
1796 config MIPS_MT_FPAFF
1797 bool "Dynamic FPU affinity for FP-intensive threads"
1798 default y
1799 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1801 config MIPS_VPE_LOADER
1802 bool "VPE loader support."
1803 depends on SYS_SUPPORTS_MULTITHREADING
1804 select CPU_MIPSR2_IRQ_VI
1805 select CPU_MIPSR2_IRQ_EI
1806 select MIPS_MT
1807 help
1808 Includes a loader for loading an elf relocatable object
1809 onto another VPE and running it.
1811 config MIPS_MT_SMTC_IM_BACKSTOP
1812 bool "Use per-TC register bits as backstop for inhibited IM bits"
1813 depends on MIPS_MT_SMTC
1814 default n
1815 help
1816 To support multiple TC microthreads acting as "CPUs" within
1817 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1818 during interrupt handling. To support legacy drivers and interrupt
1819 controller management code, SMTC has a "backstop" to track and
1820 if necessary restore the interrupt mask. This has some performance
1821 impact on interrupt service overhead.
1823 config MIPS_MT_SMTC_IRQAFF
1824 bool "Support IRQ affinity API"
1825 depends on MIPS_MT_SMTC
1826 default n
1827 help
1828 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1829 for SMTC Linux kernel. Requires platform support, of which
1830 an example can be found in the MIPS kernel i8259 and Malta
1831 platform code. Adds some overhead to interrupt dispatch, and
1832 should be used only if you know what you are doing.
1834 config MIPS_VPE_LOADER_TOM
1835 bool "Load VPE program into memory hidden from linux"
1836 depends on MIPS_VPE_LOADER
1837 default y
1838 help
1839 The loader can use memory that is present but has been hidden from
1840 Linux using the kernel command line option "mem=xxMB". It's up to
1841 you to ensure the amount you put in the option and the space your
1842 program requires is less or equal to the amount physically present.
1844 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1845 config MIPS_VPE_APSP_API
1846 bool "Enable support for AP/SP API (RTLX)"
1847 depends on MIPS_VPE_LOADER
1848 help
1850 config MIPS_APSP_KSPD
1851 bool "Enable KSPD"
1852 depends on MIPS_VPE_APSP_API
1853 default y
1854 help
1855 KSPD is a kernel daemon that accepts syscall requests from the SP
1856 side, actions them and returns the results. It also handles the
1857 "exit" syscall notifying other kernel modules the SP program is
1858 exiting. You probably want to say yes here.
1860 config MIPS_CMP
1861 bool "MIPS CMP framework support"
1862 depends on SYS_SUPPORTS_MIPS_CMP
1863 select CSRC_GIC if HOTPLUG_CPU
1864 select SYS_SUPPORTS_SMP
1865 select SYS_SUPPORTS_SCHED_SMT if SMP
1866 select WEAK_ORDERING
1867 default n
1868 help
1869 This is a placeholder option for the GCMP work. It will need to
1870 be handled differently...
1872 config SB1_PASS_1_WORKAROUNDS
1873 bool
1874 depends on CPU_SB1_PASS_1
1875 default y
1877 config SB1_PASS_2_WORKAROUNDS
1878 bool
1879 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1880 default y
1882 config SB1_PASS_2_1_WORKAROUNDS
1883 bool
1884 depends on CPU_SB1 && CPU_SB1_PASS_2
1885 default y
1887 config CPU_HAS_SMARTMIPS
1888 depends on SYS_SUPPORTS_SMARTMIPS
1889 bool "Support for the SmartMIPS ASE"
1890 help
1891 SmartMIPS is a extension of the MIPS32 architecture aimed at
1892 increased security at both hardware and software level for
1893 smartcards. Enabling this option will allow proper use of the
1894 SmartMIPS instructions by Linux applications. However a kernel with
1895 this option will not work on a MIPS core without SmartMIPS core. If
1896 you don't know you probably don't have SmartMIPS and should say N
1897 here.
1899 config CPU_MICROMIPS
1900 depends on SYS_SUPPORTS_MICROMIPS
1901 bool "Build kernel using microMIPS ISA"
1902 help
1903 When this option is enabled the kernel will be built using the
1904 microMIPS ISA
1906 config CPU_HAS_WB
1907 bool
1909 #
1910 # Vectored interrupt mode is an R2 feature
1911 #
1912 config CPU_MIPSR2_IRQ_VI
1913 bool
1915 #
1916 # Extended interrupt mode is an R2 feature
1917 #
1918 config CPU_MIPSR2_IRQ_EI
1919 bool
1921 config CPU_HAS_SYNC
1922 bool
1923 depends on !CPU_R3000
1924 default y
1926 config GENERIC_CLOCKEVENTS_BROADCAST
1927 bool
1929 #
1930 # CPU non-features
1931 #
1932 config CPU_DADDI_WORKAROUNDS
1933 bool
1935 config CPU_R4000_WORKAROUNDS
1936 bool
1937 select CPU_R4400_WORKAROUNDS
1939 config CPU_R4400_WORKAROUNDS
1940 bool
1942 #
1943 # Use the generic interrupt handling code in kernel/irq/:
1944 #
1945 config GENERIC_HARDIRQS
1946 bool
1947 default y
1949 config GENERIC_IRQ_PROBE
1950 bool
1951 default y
1953 config IRQ_PER_CPU
1954 bool
1956 #
1957 # - Highmem only makes sense for the 32-bit kernel.
1958 # - The current highmem code will only work properly on physically indexed
1959 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1960 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1961 # moment we protect the user and offer the highmem option only on machines
1962 # where it's known to be safe. This will not offer highmem on a few systems
1963 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1964 # indexed CPUs but we're playing safe.
1965 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1966 # know they might have memory configurations that could make use of highmem
1967 # support.
1968 #
1969 config HIGHMEM
1970 bool "High Memory Support"
1971 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1973 config CPU_SUPPORTS_HIGHMEM
1974 bool
1976 config SYS_SUPPORTS_HIGHMEM
1977 bool
1979 config SYS_SUPPORTS_SMARTMIPS
1980 bool
1982 config SYS_SUPPORTS_MICROMIPS
1983 bool
1985 config ARCH_FLATMEM_ENABLE
1986 def_bool y
1987 depends on !NUMA && !CPU_LOONGSON2
1989 config ARCH_DISCONTIGMEM_ENABLE
1990 bool
1991 default y if SGI_IP27
1992 help
1993 Say Y to support efficient handling of discontiguous physical memory,
1994 for architectures which are either NUMA (Non-Uniform Memory Access)
1995 or have huge holes in the physical address space for other reasons.
1996 See <file:Documentation/vm/numa> for more.
1998 config ARCH_POPULATES_NODE_MAP
1999 def_bool y
2001 config ARCH_SPARSEMEM_ENABLE
2002 bool
2003 select SPARSEMEM_STATIC
2005 config NUMA
2006 bool "NUMA Support"
2007 depends on SYS_SUPPORTS_NUMA
2008 help
2009 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2010 Access). This option improves performance on systems with more
2011 than two nodes; on two node systems it is generally better to
2012 leave it disabled; on single node systems disable this option
2013 disabled.
2015 config SYS_SUPPORTS_NUMA
2016 bool
2018 config NODES_SHIFT
2019 int
2020 default "6"
2021 depends on NEED_MULTIPLE_NODES
2023 source "mm/Kconfig"
2025 config SMP
2026 bool "Multi-Processing support"
2027 depends on SYS_SUPPORTS_SMP
2028 select IRQ_PER_CPU
2029 select USE_GENERIC_SMP_HELPERS
2030 help
2031 This enables support for systems with more than one CPU. If you have
2032 a system with only one CPU, like most personal computers, say N. If
2033 you have a system with more than one CPU, say Y.
2035 If you say N here, the kernel will run on single and multiprocessor
2036 machines, but will use only one CPU of a multiprocessor machine. If
2037 you say Y here, the kernel will run on many, but not all,
2038 singleprocessor machines. On a singleprocessor machine, the kernel
2039 will run faster if you say N here.
2041 People using multiprocessor machines who say Y here should also say
2042 Y to "Enhanced Real Time Clock Support", below.
2044 See also the SMP-HOWTO available at
2045 <http://www.tldp.org/docs.html#howto>.
2047 If you don't know what to do here, say N.
2049 config SMP_UP
2050 bool
2052 config SYS_SUPPORTS_MIPS_CMP
2053 bool
2055 config SYS_SUPPORTS_SMP
2056 bool
2058 config NR_CPUS_DEFAULT_1
2059 bool
2061 config NR_CPUS_DEFAULT_2
2062 bool
2064 config NR_CPUS_DEFAULT_4
2065 bool
2067 config NR_CPUS_DEFAULT_8
2068 bool
2070 config NR_CPUS_DEFAULT_16
2071 bool
2073 config NR_CPUS_DEFAULT_32
2074 bool
2076 config NR_CPUS_DEFAULT_64
2077 bool
2079 config NR_CPUS
2080 int "Maximum number of CPUs (2-64)"
2081 range 1 64 if NR_CPUS_DEFAULT_1
2082 depends on SMP
2083 default "1" if NR_CPUS_DEFAULT_1
2084 default "2" if NR_CPUS_DEFAULT_2
2085 default "4" if NR_CPUS_DEFAULT_4
2086 default "8" if NR_CPUS_DEFAULT_8
2087 default "16" if NR_CPUS_DEFAULT_16
2088 default "32" if NR_CPUS_DEFAULT_32
2089 default "64" if NR_CPUS_DEFAULT_64
2090 help
2091 This allows you to specify the maximum number of CPUs which this
2092 kernel will support. The maximum supported value is 32 for 32-bit
2093 kernel and 64 for 64-bit kernels; the minimum value which makes
2094 sense is 1 for Qemu (useful only for kernel debugging purposes)
2095 and 2 for all others.
2097 This is purely to save memory - each supported CPU adds
2098 approximately eight kilobytes to the kernel image. For best
2099 performance should round up your number of processors to the next
2100 power of two.
2102 source "kernel/time/Kconfig"
2104 #
2105 # Timer Interrupt Frequency Configuration
2106 #
2108 choice
2109 prompt "Timer frequency"
2110 default HZ_250
2111 help
2112 Allows the configuration of the timer frequency.
2114 config HZ_48
2115 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2117 config HZ_100
2118 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2120 config HZ_128
2121 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2123 config HZ_250
2124 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2126 config HZ_256
2127 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2129 config HZ_1000
2130 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2132 config HZ_1024
2133 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2135 endchoice
2137 config SYS_SUPPORTS_48HZ
2138 bool
2140 config SYS_SUPPORTS_100HZ
2141 bool
2143 config SYS_SUPPORTS_128HZ
2144 bool
2146 config SYS_SUPPORTS_250HZ
2147 bool
2149 config SYS_SUPPORTS_256HZ
2150 bool
2152 config SYS_SUPPORTS_1000HZ
2153 bool
2155 config SYS_SUPPORTS_1024HZ
2156 bool
2158 config SYS_SUPPORTS_ARBIT_HZ
2159 bool
2160 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2161 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2162 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2163 !SYS_SUPPORTS_1024HZ
2165 config HZ
2166 int
2167 default 48 if HZ_48
2168 default 100 if HZ_100
2169 default 128 if HZ_128
2170 default 250 if HZ_250
2171 default 256 if HZ_256
2172 default 1000 if HZ_1000
2173 default 1024 if HZ_1024
2175 source "kernel/Kconfig.preempt"
2177 config KEXEC
2178 bool "Kexec system call (EXPERIMENTAL)"
2179 depends on EXPERIMENTAL
2180 help
2181 kexec is a system call that implements the ability to shutdown your
2182 current kernel, and to start another kernel. It is like a reboot
2183 but it is independent of the system firmware. And like a reboot
2184 you can start any kernel with it, not just Linux.
2186 The name comes from the similarity to the exec system call.
2188 It is an ongoing process to be certain the hardware in a machine
2189 is properly shutdown, so do not be surprised if this code does not
2190 initially work for you. It may help to enable device hotplugging
2191 support. As of this writing the exact hardware interface is
2192 strongly in flux, so no good recommendation can be made.
2194 config SECCOMP
2195 bool "Enable seccomp to safely compute untrusted bytecode"
2196 depends on PROC_FS
2197 default y
2198 help
2199 This kernel feature is useful for number crunching applications
2200 that may need to compute untrusted bytecode during their
2201 execution. By using pipes or other transports made available to
2202 the process as file descriptors supporting the read/write
2203 syscalls, it's possible to isolate those applications in
2204 their own address space using seccomp. Once seccomp is
2205 enabled via /proc/<pid>/seccomp, it cannot be disabled
2206 and the task is only allowed to execute a few safe syscalls
2207 defined by each seccomp mode.
2209 If unsure, say Y. Only embedded should say N here.
2211 endmenu
2213 config LOCKDEP_SUPPORT
2214 bool
2215 default y
2217 config STACKTRACE_SUPPORT
2218 bool
2219 default y
2221 source "init/Kconfig"
2223 source "kernel/Kconfig.freezer"
2225 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2227 config HW_HAS_EISA
2228 bool
2229 config HW_HAS_PCI
2230 bool
2232 config PCI
2233 bool "Support for PCI controller"
2234 depends on HW_HAS_PCI
2235 select PCI_DOMAINS
2236 help
2237 Find out whether you have a PCI motherboard. PCI is the name of a
2238 bus system, i.e. the way the CPU talks to the other stuff inside
2239 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2240 say Y, otherwise N.
2242 config PCI_DOMAINS
2243 bool
2245 source "drivers/pci/Kconfig"
2247 #
2248 # ISA support is now enabled via select. Too many systems still have the one
2249 # or other ISA chip on the board that users don't know about so don't expect
2250 # users to choose the right thing ...
2251 #
2252 config ISA
2253 bool
2255 config EISA
2256 bool "EISA support"
2257 depends on HW_HAS_EISA
2258 select ISA
2259 select GENERIC_ISA_DMA
2260 ---help---
2261 The Extended Industry Standard Architecture (EISA) bus was
2262 developed as an open alternative to the IBM MicroChannel bus.
2264 The EISA bus provided some of the features of the IBM MicroChannel
2265 bus while maintaining backward compatibility with cards made for
2266 the older ISA bus. The EISA bus saw limited use between 1988 and
2267 1995 when it was made obsolete by the PCI bus.
2269 Say Y here if you are building a kernel for an EISA-based machine.
2271 Otherwise, say N.
2273 source "drivers/eisa/Kconfig"
2275 config TC
2276 bool "TURBOchannel support"
2277 depends on MACH_DECSTATION
2278 help
2279 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2280 processors. Documentation on writing device drivers for TurboChannel
2281 is available at:
2282 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2284 #config ACCESSBUS
2285 # bool "Access.Bus support"
2286 # depends on TC
2288 config MMU
2289 bool
2290 default y
2292 config I8253
2293 bool
2294 select MIPS_EXTERNAL_TIMER
2296 config ZONE_DMA32
2297 bool
2299 source "drivers/pcmcia/Kconfig"
2301 source "drivers/pci/hotplug/Kconfig"
2303 endmenu
2305 menu "Executable file formats"
2307 source "fs/Kconfig.binfmt"
2309 config TRAD_SIGNALS
2310 bool
2312 config MIPS32_COMPAT
2313 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2314 depends on 64BIT
2315 default y if CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2316 help
2317 Select this option if you want Linux/MIPS 32-bit binary
2318 compatibility. Since all software available for Linux/MIPS is
2319 currently 32-bit you should say Y here.
2321 config COMPAT
2322 bool
2323 depends on MIPS32_COMPAT
2324 default y
2326 config SYSVIPC_COMPAT
2327 bool
2328 depends on COMPAT && SYSVIPC
2329 default y
2331 config MIPS32_O32
2332 bool "Kernel support for o32 binaries"
2333 depends on MIPS32_COMPAT
2334 default y if CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2335 help
2336 Select this option if you want to run o32 binaries. These are pure
2337 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2338 existing binaries are in this format.
2340 If unsure, say Y.
2342 config MIPS32_N32
2343 bool "Kernel support for n32 binaries"
2344 depends on MIPS32_COMPAT
2345 help
2346 Select this option if you want to run n32 binaries. These are
2347 64-bit binaries using 32-bit quantities for addressing and certain
2348 data that would normally be 64-bit. They are used in special
2349 cases.
2351 If unsure, say N.
2353 comment "64bit kernel, but support of 32bit applications is disabled!"
2354 depends on 64BIT && !MIPS32_O32 && !MIPS32_N32
2355 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2357 config BINFMT_ELF32
2358 bool
2359 default y if MIPS32_O32 || MIPS32_N32
2361 endmenu
2363 menu "Power management options"
2365 config ARCH_HIBERNATION_POSSIBLE
2366 def_bool y
2367 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2369 config ARCH_SUSPEND_POSSIBLE
2370 def_bool y
2371 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2373 source "kernel/power/Kconfig"
2375 endmenu
2377 source "arch/mips/kernel/cpufreq/Kconfig"
2379 source "net/Kconfig"
2381 source "drivers/Kconfig"
2383 source "fs/Kconfig"
2385 source "arch/mips/Kconfig.debug"
2387 source "security/Kconfig"
2389 source "crypto/Kconfig"
2391 source "lib/Kconfig"