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