kbuild: fix oldnoconfig to do the right thing
[GitHub/mt8127/android_kernel_alcatel_ttab.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
17 mainmenu "Linux/MIPS Kernel Configuration"
18
19 menu "Machine selection"
20
21 config ZONE_DMA
22 bool
23
24 choice
25 prompt "System type"
26 default SGI_IP22
27
28 config MIPS_ALCHEMY
29 bool "Alchemy processor based machines"
30 select 64BIT_PHYS_ADDR
31 select CEVT_R4K_LIB
32 select CSRC_R4K_LIB
33 select IRQ_CPU
34 select SYS_HAS_CPU_MIPS32_R1
35 select SYS_SUPPORTS_32BIT_KERNEL
36 select SYS_SUPPORTS_APM_EMULATION
37 select GENERIC_GPIO
38 select ARCH_WANT_OPTIONAL_GPIOLIB
39 select SYS_SUPPORTS_ZBOOT
40
41 config AR7
42 bool "Texas Instruments AR7"
43 select BOOT_ELF32
44 select DMA_NONCOHERENT
45 select CEVT_R4K
46 select CSRC_R4K
47 select IRQ_CPU
48 select NO_EXCEPT_FILL
49 select SWAP_IO_SPACE
50 select SYS_HAS_CPU_MIPS32_R1
51 select SYS_HAS_EARLY_PRINTK
52 select SYS_SUPPORTS_32BIT_KERNEL
53 select SYS_SUPPORTS_LITTLE_ENDIAN
54 select SYS_SUPPORTS_ZBOOT_UART16550
55 select ARCH_REQUIRE_GPIOLIB
56 select GCD
57 select VLYNQ
58 help
59 Support for the Texas Instruments AR7 System-on-a-Chip
60 family: TNETD7100, 7200 and 7300.
61
62 config BCM47XX
63 bool "Broadcom BCM47XX based boards"
64 select CEVT_R4K
65 select CSRC_R4K
66 select DMA_NONCOHERENT
67 select HW_HAS_PCI
68 select IRQ_CPU
69 select SYS_HAS_CPU_MIPS32_R1
70 select SYS_SUPPORTS_32BIT_KERNEL
71 select SYS_SUPPORTS_LITTLE_ENDIAN
72 select SSB
73 select SSB_DRIVER_MIPS
74 select SSB_DRIVER_EXTIF
75 select SSB_EMBEDDED
76 select SSB_B43_PCI_BRIDGE if PCI
77 select SSB_PCICORE_HOSTMODE if PCI
78 select GENERIC_GPIO
79 select SYS_HAS_EARLY_PRINTK
80 select CFE
81 help
82 Support for BCM47XX based boards
83
84 config BCM63XX
85 bool "Broadcom BCM63XX based boards"
86 select CEVT_R4K
87 select CSRC_R4K
88 select DMA_NONCOHERENT
89 select IRQ_CPU
90 select SYS_HAS_CPU_MIPS32_R1
91 select SYS_SUPPORTS_32BIT_KERNEL
92 select SYS_SUPPORTS_BIG_ENDIAN
93 select SYS_HAS_EARLY_PRINTK
94 select SWAP_IO_SPACE
95 select ARCH_REQUIRE_GPIOLIB
96 help
97 Support for BCM63XX based boards
98
99 config MIPS_COBALT
100 bool "Cobalt Server"
101 select CEVT_R4K
102 select CSRC_R4K
103 select CEVT_GT641XX
104 select DMA_NONCOHERENT
105 select HW_HAS_PCI
106 select I8253
107 select I8259
108 select IRQ_CPU
109 select IRQ_GT641XX
110 select PCI_GT64XXX_PCI0
111 select PCI
112 select SYS_HAS_CPU_NEVADA
113 select SYS_HAS_EARLY_PRINTK
114 select SYS_SUPPORTS_32BIT_KERNEL
115 select SYS_SUPPORTS_64BIT_KERNEL
116 select SYS_SUPPORTS_LITTLE_ENDIAN
117
118 config MACH_DECSTATION
119 bool "DECstations"
120 select BOOT_ELF32
121 select CEVT_DS1287
122 select CEVT_R4K
123 select CSRC_IOASIC
124 select CSRC_R4K
125 select CPU_DADDI_WORKAROUNDS if 64BIT
126 select CPU_R4000_WORKAROUNDS if 64BIT
127 select CPU_R4400_WORKAROUNDS if 64BIT
128 select DMA_NONCOHERENT
129 select NO_IOPORT
130 select IRQ_CPU
131 select SYS_HAS_CPU_R3000
132 select SYS_HAS_CPU_R4X00
133 select SYS_SUPPORTS_32BIT_KERNEL
134 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
135 select SYS_SUPPORTS_LITTLE_ENDIAN
136 select SYS_SUPPORTS_128HZ
137 select SYS_SUPPORTS_256HZ
138 select SYS_SUPPORTS_1024HZ
139 help
140 This enables support for DEC's MIPS based workstations. For details
141 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
142 DECstation porting pages on <http://decstation.unix-ag.org/>.
143
144 If you have one of the following DECstation Models you definitely
145 want to choose R4xx0 for the CPU Type:
146
147 DECstation 5000/50
148 DECstation 5000/150
149 DECstation 5000/260
150 DECsystem 5900/260
151
152 otherwise choose R3000.
153
154 config MACH_JAZZ
155 bool "Jazz family of machines"
156 select ARC
157 select ARC32
158 select ARCH_MAY_HAVE_PC_FDC
159 select CEVT_R4K
160 select CSRC_R4K
161 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
162 select GENERIC_ISA_DMA
163 select IRQ_CPU
164 select I8253
165 select I8259
166 select ISA
167 select SYS_HAS_CPU_R4X00
168 select SYS_SUPPORTS_32BIT_KERNEL
169 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
170 select SYS_SUPPORTS_100HZ
171 help
172 This a family of machines based on the MIPS R4030 chipset which was
173 used by several vendors to build RISC/os and Windows NT workstations.
174 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
175 Olivetti M700-10 workstations.
176
177 config MACH_JZ4740
178 bool "Ingenic JZ4740 based machines"
179 select SYS_HAS_CPU_MIPS32_R1
180 select SYS_SUPPORTS_32BIT_KERNEL
181 select SYS_SUPPORTS_LITTLE_ENDIAN
182 select DMA_NONCOHERENT
183 select IRQ_CPU
184 select GENERIC_GPIO
185 select ARCH_REQUIRE_GPIOLIB
186 select SYS_HAS_EARLY_PRINTK
187 select HAVE_PWM
188
189 config LASAT
190 bool "LASAT Networks platforms"
191 select CEVT_R4K
192 select CSRC_R4K
193 select DMA_NONCOHERENT
194 select SYS_HAS_EARLY_PRINTK
195 select HW_HAS_PCI
196 select IRQ_CPU
197 select PCI_GT64XXX_PCI0
198 select MIPS_NILE4
199 select R5000_CPU_SCACHE
200 select SYS_HAS_CPU_R5000
201 select SYS_SUPPORTS_32BIT_KERNEL
202 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
203 select SYS_SUPPORTS_LITTLE_ENDIAN
204
205 config MACH_LOONGSON
206 bool "Loongson family of machines"
207 select SYS_SUPPORTS_ZBOOT
208 help
209 This enables the support of Loongson family of machines.
210
211 Loongson is a family of general-purpose MIPS-compatible CPUs.
212 developed at Institute of Computing Technology (ICT),
213 Chinese Academy of Sciences (CAS) in the People's Republic
214 of China. The chief architect is Professor Weiwu Hu.
215
216 config MIPS_MALTA
217 bool "MIPS Malta board"
218 select ARCH_MAY_HAVE_PC_FDC
219 select BOOT_ELF32
220 select BOOT_RAW
221 select CEVT_R4K
222 select CSRC_R4K
223 select DMA_NONCOHERENT
224 select GENERIC_ISA_DMA
225 select IRQ_CPU
226 select IRQ_GIC
227 select HW_HAS_PCI
228 select I8253
229 select I8259
230 select MIPS_BOARDS_GEN
231 select MIPS_BONITO64
232 select MIPS_CPU_SCACHE
233 select PCI_GT64XXX_PCI0
234 select MIPS_MSC
235 select SWAP_IO_SPACE
236 select SYS_HAS_CPU_MIPS32_R1
237 select SYS_HAS_CPU_MIPS32_R2
238 select SYS_HAS_CPU_MIPS64_R1
239 select SYS_HAS_CPU_NEVADA
240 select SYS_HAS_CPU_RM7000
241 select SYS_HAS_EARLY_PRINTK
242 select SYS_SUPPORTS_32BIT_KERNEL
243 select SYS_SUPPORTS_64BIT_KERNEL
244 select SYS_SUPPORTS_BIG_ENDIAN
245 select SYS_SUPPORTS_LITTLE_ENDIAN
246 select SYS_SUPPORTS_MIPS_CMP
247 select SYS_SUPPORTS_MULTITHREADING
248 select SYS_SUPPORTS_SMARTMIPS
249 select SYS_SUPPORTS_ZBOOT
250 help
251 This enables support for the MIPS Technologies Malta evaluation
252 board.
253
254 config MIPS_SIM
255 bool 'MIPS simulator (MIPSsim)'
256 select CEVT_R4K
257 select CSRC_R4K
258 select DMA_NONCOHERENT
259 select SYS_HAS_EARLY_PRINTK
260 select IRQ_CPU
261 select BOOT_RAW
262 select SYS_HAS_CPU_MIPS32_R1
263 select SYS_HAS_CPU_MIPS32_R2
264 select SYS_HAS_EARLY_PRINTK
265 select SYS_SUPPORTS_32BIT_KERNEL
266 select SYS_SUPPORTS_BIG_ENDIAN
267 select SYS_SUPPORTS_MULTITHREADING
268 select SYS_SUPPORTS_LITTLE_ENDIAN
269 help
270 This option enables support for MIPS Technologies MIPSsim software
271 emulator.
272
273 config NEC_MARKEINS
274 bool "NEC EMMA2RH Mark-eins board"
275 select SOC_EMMA2RH
276 select HW_HAS_PCI
277 help
278 This enables support for the NEC Electronics Mark-eins boards.
279
280 config MACH_VR41XX
281 bool "NEC VR4100 series based machines"
282 select CEVT_R4K
283 select CSRC_R4K
284 select SYS_HAS_CPU_VR41XX
285 select ARCH_REQUIRE_GPIOLIB
286
287 config NXP_STB220
288 bool "NXP STB220 board"
289 select SOC_PNX833X
290 help
291 Support for NXP Semiconductors STB220 Development Board.
292
293 config NXP_STB225
294 bool "NXP 225 board"
295 select SOC_PNX833X
296 select SOC_PNX8335
297 help
298 Support for NXP Semiconductors STB225 Development Board.
299
300 config PNX8550_JBS
301 bool "NXP PNX8550 based JBS board"
302 select PNX8550
303 select SYS_SUPPORTS_LITTLE_ENDIAN
304
305 config PNX8550_STB810
306 bool "NXP PNX8550 based STB810 board"
307 select PNX8550
308 select SYS_SUPPORTS_LITTLE_ENDIAN
309
310 config PMC_MSP
311 bool "PMC-Sierra MSP chipsets"
312 depends on EXPERIMENTAL
313 select DMA_NONCOHERENT
314 select SWAP_IO_SPACE
315 select NO_EXCEPT_FILL
316 select BOOT_RAW
317 select SYS_HAS_CPU_MIPS32_R1
318 select SYS_HAS_CPU_MIPS32_R2
319 select SYS_SUPPORTS_32BIT_KERNEL
320 select SYS_SUPPORTS_BIG_ENDIAN
321 select IRQ_CPU
322 select SERIAL_8250
323 select SERIAL_8250_CONSOLE
324 help
325 This adds support for the PMC-Sierra family of Multi-Service
326 Processor System-On-A-Chips. These parts include a number
327 of integrated peripherals, interfaces and DSPs in addition to
328 a variety of MIPS cores.
329
330 config PMC_YOSEMITE
331 bool "PMC-Sierra Yosemite eval board"
332 select CEVT_R4K
333 select CSRC_R4K
334 select DMA_COHERENT
335 select HW_HAS_PCI
336 select IRQ_CPU
337 select IRQ_CPU_RM7K
338 select IRQ_CPU_RM9K
339 select SWAP_IO_SPACE
340 select SYS_HAS_CPU_RM9000
341 select SYS_HAS_EARLY_PRINTK
342 select SYS_SUPPORTS_32BIT_KERNEL
343 select SYS_SUPPORTS_64BIT_KERNEL
344 select SYS_SUPPORTS_BIG_ENDIAN
345 select SYS_SUPPORTS_HIGHMEM
346 select SYS_SUPPORTS_SMP
347 help
348 Yosemite is an evaluation board for the RM9000x2 processor
349 manufactured by PMC-Sierra.
350
351 config POWERTV
352 bool "Cisco PowerTV"
353 select BOOT_ELF32
354 select CEVT_R4K
355 select CPU_MIPSR2_IRQ_VI
356 select CPU_MIPSR2_IRQ_EI
357 select CSRC_POWERTV
358 select DMA_NONCOHERENT
359 select HW_HAS_PCI
360 select SYS_HAS_EARLY_PRINTK
361 select SYS_HAS_CPU_MIPS32_R2
362 select SYS_SUPPORTS_32BIT_KERNEL
363 select SYS_SUPPORTS_BIG_ENDIAN
364 select SYS_SUPPORTS_HIGHMEM
365 select USB_OHCI_LITTLE_ENDIAN
366 help
367 This enables support for the Cisco PowerTV Platform.
368
369 config SGI_IP22
370 bool "SGI IP22 (Indy/Indigo2)"
371 select ARC
372 select ARC32
373 select BOOT_ELF32
374 select CEVT_R4K
375 select CSRC_R4K
376 select DEFAULT_SGI_PARTITION
377 select DMA_NONCOHERENT
378 select HW_HAS_EISA
379 select I8253
380 select I8259
381 select IP22_CPU_SCACHE
382 select IRQ_CPU
383 select GENERIC_ISA_DMA_SUPPORT_BROKEN
384 select SGI_HAS_I8042
385 select SGI_HAS_INDYDOG
386 select SGI_HAS_HAL2
387 select SGI_HAS_SEEQ
388 select SGI_HAS_WD93
389 select SGI_HAS_ZILOG
390 select SWAP_IO_SPACE
391 select SYS_HAS_CPU_R4X00
392 select SYS_HAS_CPU_R5000
393 #
394 # Disable EARLY_PRINTK for now since it leads to overwritten prom
395 # memory during early boot on some machines.
396 #
397 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
398 # for a more details discussion
399 #
400 # select SYS_HAS_EARLY_PRINTK
401 select SYS_SUPPORTS_32BIT_KERNEL
402 select SYS_SUPPORTS_64BIT_KERNEL
403 select SYS_SUPPORTS_BIG_ENDIAN
404 help
405 This are the SGI Indy, Challenge S and Indigo2, as well as certain
406 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
407 that runs on these, say Y here.
408
409 config SGI_IP27
410 bool "SGI IP27 (Origin200/2000)"
411 select ARC
412 select ARC64
413 select BOOT_ELF64
414 select DEFAULT_SGI_PARTITION
415 select DMA_COHERENT
416 select SYS_HAS_EARLY_PRINTK
417 select HW_HAS_PCI
418 select NR_CPUS_DEFAULT_64
419 select SYS_HAS_CPU_R10000
420 select SYS_SUPPORTS_64BIT_KERNEL
421 select SYS_SUPPORTS_BIG_ENDIAN
422 select SYS_SUPPORTS_NUMA
423 select SYS_SUPPORTS_SMP
424 help
425 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
426 workstations. To compile a Linux kernel that runs on these, say Y
427 here.
428
429 config SGI_IP28
430 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
431 depends on EXPERIMENTAL
432 select ARC
433 select ARC64
434 select BOOT_ELF64
435 select CEVT_R4K
436 select CSRC_R4K
437 select DEFAULT_SGI_PARTITION
438 select DMA_NONCOHERENT
439 select GENERIC_ISA_DMA_SUPPORT_BROKEN
440 select IRQ_CPU
441 select HW_HAS_EISA
442 select I8253
443 select I8259
444 select SGI_HAS_I8042
445 select SGI_HAS_INDYDOG
446 select SGI_HAS_HAL2
447 select SGI_HAS_SEEQ
448 select SGI_HAS_WD93
449 select SGI_HAS_ZILOG
450 select SWAP_IO_SPACE
451 select SYS_HAS_CPU_R10000
452 #
453 # Disable EARLY_PRINTK for now since it leads to overwritten prom
454 # memory during early boot on some machines.
455 #
456 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
457 # for a more details discussion
458 #
459 # select SYS_HAS_EARLY_PRINTK
460 select SYS_SUPPORTS_64BIT_KERNEL
461 select SYS_SUPPORTS_BIG_ENDIAN
462 help
463 This is the SGI Indigo2 with R10000 processor. To compile a Linux
464 kernel that runs on these, say Y here.
465
466 config SGI_IP32
467 bool "SGI IP32 (O2)"
468 select ARC
469 select ARC32
470 select BOOT_ELF32
471 select CEVT_R4K
472 select CSRC_R4K
473 select DMA_NONCOHERENT
474 select HW_HAS_PCI
475 select IRQ_CPU
476 select R5000_CPU_SCACHE
477 select RM7000_CPU_SCACHE
478 select SYS_HAS_CPU_R5000
479 select SYS_HAS_CPU_R10000 if BROKEN
480 select SYS_HAS_CPU_RM7000
481 select SYS_HAS_CPU_NEVADA
482 select SYS_SUPPORTS_64BIT_KERNEL
483 select SYS_SUPPORTS_BIG_ENDIAN
484 help
485 If you want this kernel to run on SGI O2 workstation, say Y here.
486
487 config SIBYTE_CRHINE
488 bool "Sibyte BCM91120C-CRhine"
489 depends on EXPERIMENTAL
490 select BOOT_ELF32
491 select DMA_COHERENT
492 select SIBYTE_BCM1120
493 select SWAP_IO_SPACE
494 select SYS_HAS_CPU_SB1
495 select SYS_SUPPORTS_BIG_ENDIAN
496 select SYS_SUPPORTS_LITTLE_ENDIAN
497
498 config SIBYTE_CARMEL
499 bool "Sibyte BCM91120x-Carmel"
500 depends on EXPERIMENTAL
501 select BOOT_ELF32
502 select DMA_COHERENT
503 select SIBYTE_BCM1120
504 select SWAP_IO_SPACE
505 select SYS_HAS_CPU_SB1
506 select SYS_SUPPORTS_BIG_ENDIAN
507 select SYS_SUPPORTS_LITTLE_ENDIAN
508
509 config SIBYTE_CRHONE
510 bool "Sibyte BCM91125C-CRhone"
511 depends on EXPERIMENTAL
512 select BOOT_ELF32
513 select DMA_COHERENT
514 select SIBYTE_BCM1125
515 select SWAP_IO_SPACE
516 select SYS_HAS_CPU_SB1
517 select SYS_SUPPORTS_BIG_ENDIAN
518 select SYS_SUPPORTS_HIGHMEM
519 select SYS_SUPPORTS_LITTLE_ENDIAN
520
521 config SIBYTE_RHONE
522 bool "Sibyte BCM91125E-Rhone"
523 depends on EXPERIMENTAL
524 select BOOT_ELF32
525 select DMA_COHERENT
526 select SIBYTE_BCM1125H
527 select SWAP_IO_SPACE
528 select SYS_HAS_CPU_SB1
529 select SYS_SUPPORTS_BIG_ENDIAN
530 select SYS_SUPPORTS_LITTLE_ENDIAN
531
532 config SIBYTE_SWARM
533 bool "Sibyte BCM91250A-SWARM"
534 select BOOT_ELF32
535 select DMA_COHERENT
536 select HAVE_PATA_PLATFORM
537 select NR_CPUS_DEFAULT_2
538 select SIBYTE_SB1250
539 select SWAP_IO_SPACE
540 select SYS_HAS_CPU_SB1
541 select SYS_SUPPORTS_BIG_ENDIAN
542 select SYS_SUPPORTS_HIGHMEM
543 select SYS_SUPPORTS_LITTLE_ENDIAN
544 select ZONE_DMA32 if 64BIT
545
546 config SIBYTE_LITTLESUR
547 bool "Sibyte BCM91250C2-LittleSur"
548 depends on EXPERIMENTAL
549 select BOOT_ELF32
550 select DMA_COHERENT
551 select HAVE_PATA_PLATFORM
552 select NR_CPUS_DEFAULT_2
553 select SIBYTE_SB1250
554 select SWAP_IO_SPACE
555 select SYS_HAS_CPU_SB1
556 select SYS_SUPPORTS_BIG_ENDIAN
557 select SYS_SUPPORTS_HIGHMEM
558 select SYS_SUPPORTS_LITTLE_ENDIAN
559
560 config SIBYTE_SENTOSA
561 bool "Sibyte BCM91250E-Sentosa"
562 depends on EXPERIMENTAL
563 select BOOT_ELF32
564 select DMA_COHERENT
565 select NR_CPUS_DEFAULT_2
566 select SIBYTE_SB1250
567 select SWAP_IO_SPACE
568 select SYS_HAS_CPU_SB1
569 select SYS_SUPPORTS_BIG_ENDIAN
570 select SYS_SUPPORTS_LITTLE_ENDIAN
571
572 config SIBYTE_BIGSUR
573 bool "Sibyte BCM91480B-BigSur"
574 select BOOT_ELF32
575 select DMA_COHERENT
576 select NR_CPUS_DEFAULT_4
577 select SIBYTE_BCM1x80
578 select SWAP_IO_SPACE
579 select SYS_HAS_CPU_SB1
580 select SYS_SUPPORTS_BIG_ENDIAN
581 select SYS_SUPPORTS_HIGHMEM
582 select SYS_SUPPORTS_LITTLE_ENDIAN
583 select ZONE_DMA32 if 64BIT
584
585 config SNI_RM
586 bool "SNI RM200/300/400"
587 select ARC if CPU_LITTLE_ENDIAN
588 select ARC32 if CPU_LITTLE_ENDIAN
589 select SNIPROM if CPU_BIG_ENDIAN
590 select ARCH_MAY_HAVE_PC_FDC
591 select BOOT_ELF32
592 select CEVT_R4K
593 select CSRC_R4K
594 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
595 select DMA_NONCOHERENT
596 select GENERIC_ISA_DMA
597 select HW_HAS_EISA
598 select HW_HAS_PCI
599 select IRQ_CPU
600 select I8253
601 select I8259
602 select ISA
603 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
604 select SYS_HAS_CPU_R4X00
605 select SYS_HAS_CPU_R5000
606 select SYS_HAS_CPU_R10000
607 select R5000_CPU_SCACHE
608 select SYS_HAS_EARLY_PRINTK
609 select SYS_SUPPORTS_32BIT_KERNEL
610 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
611 select SYS_SUPPORTS_BIG_ENDIAN
612 select SYS_SUPPORTS_HIGHMEM
613 select SYS_SUPPORTS_LITTLE_ENDIAN
614 help
615 The SNI RM200/300/400 are MIPS-based machines manufactured by
616 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
617 Technology and now in turn merged with Fujitsu. Say Y here to
618 support this machine type.
619
620 config MACH_TX39XX
621 bool "Toshiba TX39 series based machines"
622
623 config MACH_TX49XX
624 bool "Toshiba TX49 series based machines"
625
626 config MIKROTIK_RB532
627 bool "Mikrotik RB532 boards"
628 select CEVT_R4K
629 select CSRC_R4K
630 select DMA_NONCOHERENT
631 select HW_HAS_PCI
632 select IRQ_CPU
633 select SYS_HAS_CPU_MIPS32_R1
634 select SYS_SUPPORTS_32BIT_KERNEL
635 select SYS_SUPPORTS_LITTLE_ENDIAN
636 select SWAP_IO_SPACE
637 select BOOT_RAW
638 select ARCH_REQUIRE_GPIOLIB
639 help
640 Support the Mikrotik(tm) RouterBoard 532 series,
641 based on the IDT RC32434 SoC.
642
643 config WR_PPMC
644 bool "Wind River PPMC board"
645 select CEVT_R4K
646 select CSRC_R4K
647 select IRQ_CPU
648 select BOOT_ELF32
649 select DMA_NONCOHERENT
650 select HW_HAS_PCI
651 select PCI_GT64XXX_PCI0
652 select SWAP_IO_SPACE
653 select SYS_HAS_CPU_MIPS32_R1
654 select SYS_HAS_CPU_MIPS32_R2
655 select SYS_HAS_CPU_MIPS64_R1
656 select SYS_HAS_CPU_NEVADA
657 select SYS_HAS_CPU_RM7000
658 select SYS_SUPPORTS_32BIT_KERNEL
659 select SYS_SUPPORTS_64BIT_KERNEL
660 select SYS_SUPPORTS_BIG_ENDIAN
661 select SYS_SUPPORTS_LITTLE_ENDIAN
662 help
663 This enables support for the Wind River MIPS32 4KC PPMC evaluation
664 board, which is based on GT64120 bridge chip.
665
666 config CAVIUM_OCTEON_SIMULATOR
667 bool "Cavium Networks Octeon Simulator"
668 select CEVT_R4K
669 select 64BIT_PHYS_ADDR
670 select DMA_COHERENT
671 select SYS_SUPPORTS_64BIT_KERNEL
672 select SYS_SUPPORTS_BIG_ENDIAN
673 select SYS_SUPPORTS_HIGHMEM
674 select SYS_SUPPORTS_HOTPLUG_CPU
675 select SYS_HAS_CPU_CAVIUM_OCTEON
676 help
677 The Octeon simulator is software performance model of the Cavium
678 Octeon Processor. It supports simulating Octeon processors on x86
679 hardware.
680
681 config CAVIUM_OCTEON_REFERENCE_BOARD
682 bool "Cavium Networks Octeon reference board"
683 select CEVT_R4K
684 select 64BIT_PHYS_ADDR
685 select DMA_COHERENT
686 select SYS_SUPPORTS_64BIT_KERNEL
687 select SYS_SUPPORTS_BIG_ENDIAN
688 select SYS_SUPPORTS_HIGHMEM
689 select SYS_SUPPORTS_HOTPLUG_CPU
690 select SYS_HAS_EARLY_PRINTK
691 select SYS_HAS_CPU_CAVIUM_OCTEON
692 select SWAP_IO_SPACE
693 select HW_HAS_PCI
694 select ARCH_SUPPORTS_MSI
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
884 config GENERIC_ISA_DMA_SUPPORT_BROKEN
885 bool
886 select GENERIC_ISA_DMA
887
888 config GENERIC_GPIO
889 bool
890
891 #
892 # Endianess selection. Sufficiently obscure so many users don't know what to
893 # answer,so we try hard to limit the available choices. Also the use of a
894 # choice statement should be more obvious to the user.
895 #
896 choice
897 prompt "Endianess selection"
898 help
899 Some MIPS machines can be configured for either little or big endian
900 byte order. These modes require different kernels and a different
901 Linux distribution. In general there is one preferred byteorder for a
902 particular system but some systems are just as commonly used in the
903 one or the other endianness.
904
905 config CPU_BIG_ENDIAN
906 bool "Big endian"
907 depends on SYS_SUPPORTS_BIG_ENDIAN
908
909 config CPU_LITTLE_ENDIAN
910 bool "Little endian"
911 depends on SYS_SUPPORTS_LITTLE_ENDIAN
912 help
913
914 endchoice
915
916 config EXPORT_UASM
917 bool
918
919 config SYS_SUPPORTS_APM_EMULATION
920 bool
921
922 config SYS_SUPPORTS_BIG_ENDIAN
923 bool
924
925 config SYS_SUPPORTS_LITTLE_ENDIAN
926 bool
927
928 config SYS_SUPPORTS_HUGETLBFS
929 bool
930 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
931 default y
932
933 config IRQ_CPU
934 bool
935
936 config IRQ_CPU_RM7K
937 bool
938
939 config IRQ_CPU_RM9K
940 bool
941
942 config IRQ_MSP_SLP
943 bool
944
945 config IRQ_MSP_CIC
946 bool
947
948 config IRQ_TXX9
949 bool
950
951 config IRQ_GT641XX
952 bool
953
954 config IRQ_GIC
955 bool
956
957 config IRQ_CPU_OCTEON
958 bool
959
960 config MIPS_BOARDS_GEN
961 bool
962
963 config PCI_GT64XXX_PCI0
964 bool
965
966 config NO_EXCEPT_FILL
967 bool
968
969 config MIPS_RM9122
970 bool
971 select SERIAL_RM9000
972
973 config SOC_EMMA2RH
974 bool
975 select CEVT_R4K
976 select CSRC_R4K
977 select DMA_NONCOHERENT
978 select IRQ_CPU
979 select SWAP_IO_SPACE
980 select SYS_HAS_CPU_R5500
981 select SYS_SUPPORTS_32BIT_KERNEL
982 select SYS_SUPPORTS_64BIT_KERNEL
983 select SYS_SUPPORTS_BIG_ENDIAN
984
985 config SOC_PNX833X
986 bool
987 select CEVT_R4K
988 select CSRC_R4K
989 select IRQ_CPU
990 select DMA_NONCOHERENT
991 select SYS_HAS_CPU_MIPS32_R2
992 select SYS_SUPPORTS_32BIT_KERNEL
993 select SYS_SUPPORTS_LITTLE_ENDIAN
994 select SYS_SUPPORTS_BIG_ENDIAN
995 select GENERIC_GPIO
996 select CPU_MIPSR2_IRQ_VI
997
998 config SOC_PNX8335
999 bool
1000 select SOC_PNX833X
1001
1002 config PNX8550
1003 bool
1004 select SOC_PNX8550
1005
1006 config SOC_PNX8550
1007 bool
1008 select DMA_NONCOHERENT
1009 select HW_HAS_PCI
1010 select SYS_HAS_CPU_MIPS32_R1
1011 select SYS_HAS_EARLY_PRINTK
1012 select SYS_SUPPORTS_32BIT_KERNEL
1013 select GENERIC_GPIO
1014
1015 config SWAP_IO_SPACE
1016 bool
1017
1018 config SERIAL_RM9000
1019 bool
1020
1021 config SGI_HAS_INDYDOG
1022 bool
1023
1024 config SGI_HAS_HAL2
1025 bool
1026
1027 config SGI_HAS_SEEQ
1028 bool
1029
1030 config SGI_HAS_WD93
1031 bool
1032
1033 config SGI_HAS_ZILOG
1034 bool
1035
1036 config SGI_HAS_I8042
1037 bool
1038
1039 config DEFAULT_SGI_PARTITION
1040 bool
1041
1042 config ARC32
1043 bool
1044
1045 config SNIPROM
1046 bool
1047
1048 config BOOT_ELF32
1049 bool
1050
1051 config MIPS_L1_CACHE_SHIFT
1052 int
1053 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1054 default "6" if MIPS_CPU_SCACHE
1055 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1056 default "5"
1057
1058 config HAVE_STD_PC_SERIAL_PORT
1059 bool
1060
1061 config ARC_CONSOLE
1062 bool "ARC console support"
1063 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1064
1065 config ARC_MEMORY
1066 bool
1067 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1068 default y
1069
1070 config ARC_PROMLIB
1071 bool
1072 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1073 default y
1074
1075 config ARC64
1076 bool
1077
1078 config BOOT_ELF64
1079 bool
1080
1081 menu "CPU selection"
1082
1083 choice
1084 prompt "CPU type"
1085 default CPU_R4X00
1086
1087 config CPU_LOONGSON2E
1088 bool "Loongson 2E"
1089 depends on SYS_HAS_CPU_LOONGSON2E
1090 select CPU_LOONGSON2
1091 help
1092 The Loongson 2E processor implements the MIPS III instruction set
1093 with many extensions.
1094
1095 It has an internal FPGA northbridge, which is compatiable to
1096 bonito64.
1097
1098 config CPU_LOONGSON2F
1099 bool "Loongson 2F"
1100 depends on SYS_HAS_CPU_LOONGSON2F
1101 select CPU_LOONGSON2
1102 select GENERIC_GPIO
1103 select ARCH_REQUIRE_GPIOLIB
1104 help
1105 The Loongson 2F processor implements the MIPS III instruction set
1106 with many extensions.
1107
1108 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1109 have a similar programming interface with FPGA northbridge used in
1110 Loongson2E.
1111
1112 config CPU_MIPS32_R1
1113 bool "MIPS32 Release 1"
1114 depends on SYS_HAS_CPU_MIPS32_R1
1115 select CPU_HAS_PREFETCH
1116 select CPU_SUPPORTS_32BIT_KERNEL
1117 select CPU_SUPPORTS_HIGHMEM
1118 help
1119 Choose this option to build a kernel for release 1 or later of the
1120 MIPS32 architecture. Most modern embedded systems with a 32-bit
1121 MIPS processor are based on a MIPS32 processor. If you know the
1122 specific type of processor in your system, choose those that one
1123 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1124 Release 2 of the MIPS32 architecture is available since several
1125 years so chances are you even have a MIPS32 Release 2 processor
1126 in which case you should choose CPU_MIPS32_R2 instead for better
1127 performance.
1128
1129 config CPU_MIPS32_R2
1130 bool "MIPS32 Release 2"
1131 depends on SYS_HAS_CPU_MIPS32_R2
1132 select CPU_HAS_PREFETCH
1133 select CPU_SUPPORTS_32BIT_KERNEL
1134 select CPU_SUPPORTS_HIGHMEM
1135 help
1136 Choose this option to build a kernel for release 2 or later of the
1137 MIPS32 architecture. Most modern embedded systems with a 32-bit
1138 MIPS processor are based on a MIPS32 processor. If you know the
1139 specific type of processor in your system, choose those that one
1140 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1141
1142 config CPU_MIPS64_R1
1143 bool "MIPS64 Release 1"
1144 depends on SYS_HAS_CPU_MIPS64_R1
1145 select CPU_HAS_PREFETCH
1146 select CPU_SUPPORTS_32BIT_KERNEL
1147 select CPU_SUPPORTS_64BIT_KERNEL
1148 select CPU_SUPPORTS_HIGHMEM
1149 select CPU_SUPPORTS_HUGEPAGES
1150 help
1151 Choose this option to build a kernel for release 1 or later of the
1152 MIPS64 architecture. Many modern embedded systems with a 64-bit
1153 MIPS processor are based on a MIPS64 processor. If you know the
1154 specific type of processor in your system, choose those that one
1155 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1156 Release 2 of the MIPS64 architecture is available since several
1157 years so chances are you even have a MIPS64 Release 2 processor
1158 in which case you should choose CPU_MIPS64_R2 instead for better
1159 performance.
1160
1161 config CPU_MIPS64_R2
1162 bool "MIPS64 Release 2"
1163 depends on SYS_HAS_CPU_MIPS64_R2
1164 select CPU_HAS_PREFETCH
1165 select CPU_SUPPORTS_32BIT_KERNEL
1166 select CPU_SUPPORTS_64BIT_KERNEL
1167 select CPU_SUPPORTS_HIGHMEM
1168 select CPU_SUPPORTS_HUGEPAGES
1169 help
1170 Choose this option to build a kernel for release 2 or later of the
1171 MIPS64 architecture. Many modern embedded systems with a 64-bit
1172 MIPS processor are based on a MIPS64 processor. If you know the
1173 specific type of processor in your system, choose those that one
1174 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1175
1176 config CPU_R3000
1177 bool "R3000"
1178 depends on SYS_HAS_CPU_R3000
1179 select CPU_HAS_WB
1180 select CPU_SUPPORTS_32BIT_KERNEL
1181 select CPU_SUPPORTS_HIGHMEM
1182 help
1183 Please make sure to pick the right CPU type. Linux/MIPS is not
1184 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1185 *not* work on R4000 machines and vice versa. However, since most
1186 of the supported machines have an R4000 (or similar) CPU, R4x00
1187 might be a safe bet. If the resulting kernel does not work,
1188 try to recompile with R3000.
1189
1190 config CPU_TX39XX
1191 bool "R39XX"
1192 depends on SYS_HAS_CPU_TX39XX
1193 select CPU_SUPPORTS_32BIT_KERNEL
1194
1195 config CPU_VR41XX
1196 bool "R41xx"
1197 depends on SYS_HAS_CPU_VR41XX
1198 select CPU_SUPPORTS_32BIT_KERNEL
1199 select CPU_SUPPORTS_64BIT_KERNEL
1200 help
1201 The options selects support for the NEC VR4100 series of processors.
1202 Only choose this option if you have one of these processors as a
1203 kernel built with this option will not run on any other type of
1204 processor or vice versa.
1205
1206 config CPU_R4300
1207 bool "R4300"
1208 depends on SYS_HAS_CPU_R4300
1209 select CPU_SUPPORTS_32BIT_KERNEL
1210 select CPU_SUPPORTS_64BIT_KERNEL
1211 help
1212 MIPS Technologies R4300-series processors.
1213
1214 config CPU_R4X00
1215 bool "R4x00"
1216 depends on SYS_HAS_CPU_R4X00
1217 select CPU_SUPPORTS_32BIT_KERNEL
1218 select CPU_SUPPORTS_64BIT_KERNEL
1219 help
1220 MIPS Technologies R4000-series processors other than 4300, including
1221 the R4000, R4400, R4600, and 4700.
1222
1223 config CPU_TX49XX
1224 bool "R49XX"
1225 depends on SYS_HAS_CPU_TX49XX
1226 select CPU_HAS_PREFETCH
1227 select CPU_SUPPORTS_32BIT_KERNEL
1228 select CPU_SUPPORTS_64BIT_KERNEL
1229
1230 config CPU_R5000
1231 bool "R5000"
1232 depends on SYS_HAS_CPU_R5000
1233 select CPU_SUPPORTS_32BIT_KERNEL
1234 select CPU_SUPPORTS_64BIT_KERNEL
1235 help
1236 MIPS Technologies R5000-series processors other than the Nevada.
1237
1238 config CPU_R5432
1239 bool "R5432"
1240 depends on SYS_HAS_CPU_R5432
1241 select CPU_SUPPORTS_32BIT_KERNEL
1242 select CPU_SUPPORTS_64BIT_KERNEL
1243
1244 config CPU_R5500
1245 bool "R5500"
1246 depends on SYS_HAS_CPU_R5500
1247 select CPU_SUPPORTS_32BIT_KERNEL
1248 select CPU_SUPPORTS_64BIT_KERNEL
1249 select CPU_SUPPORTS_HUGEPAGES
1250 help
1251 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1252 instruction set.
1253
1254 config CPU_R6000
1255 bool "R6000"
1256 depends on EXPERIMENTAL
1257 depends on SYS_HAS_CPU_R6000
1258 select CPU_SUPPORTS_32BIT_KERNEL
1259 help
1260 MIPS Technologies R6000 and R6000A series processors. Note these
1261 processors are extremely rare and the support for them is incomplete.
1262
1263 config CPU_NEVADA
1264 bool "RM52xx"
1265 depends on SYS_HAS_CPU_NEVADA
1266 select CPU_SUPPORTS_32BIT_KERNEL
1267 select CPU_SUPPORTS_64BIT_KERNEL
1268 help
1269 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1270
1271 config CPU_R8000
1272 bool "R8000"
1273 depends on EXPERIMENTAL
1274 depends on SYS_HAS_CPU_R8000
1275 select CPU_HAS_PREFETCH
1276 select CPU_SUPPORTS_64BIT_KERNEL
1277 help
1278 MIPS Technologies R8000 processors. Note these processors are
1279 uncommon and the support for them is incomplete.
1280
1281 config CPU_R10000
1282 bool "R10000"
1283 depends on SYS_HAS_CPU_R10000
1284 select CPU_HAS_PREFETCH
1285 select CPU_SUPPORTS_32BIT_KERNEL
1286 select CPU_SUPPORTS_64BIT_KERNEL
1287 select CPU_SUPPORTS_HIGHMEM
1288 help
1289 MIPS Technologies R10000-series processors.
1290
1291 config CPU_RM7000
1292 bool "RM7000"
1293 depends on SYS_HAS_CPU_RM7000
1294 select CPU_HAS_PREFETCH
1295 select CPU_SUPPORTS_32BIT_KERNEL
1296 select CPU_SUPPORTS_64BIT_KERNEL
1297 select CPU_SUPPORTS_HIGHMEM
1298
1299 config CPU_RM9000
1300 bool "RM9000"
1301 depends on SYS_HAS_CPU_RM9000
1302 select CPU_HAS_PREFETCH
1303 select CPU_SUPPORTS_32BIT_KERNEL
1304 select CPU_SUPPORTS_64BIT_KERNEL
1305 select CPU_SUPPORTS_HIGHMEM
1306 select WEAK_ORDERING
1307
1308 config CPU_SB1
1309 bool "SB1"
1310 depends on SYS_HAS_CPU_SB1
1311 select CPU_SUPPORTS_32BIT_KERNEL
1312 select CPU_SUPPORTS_64BIT_KERNEL
1313 select CPU_SUPPORTS_HIGHMEM
1314 select WEAK_ORDERING
1315
1316 config CPU_CAVIUM_OCTEON
1317 bool "Cavium Octeon processor"
1318 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1319 select IRQ_CPU
1320 select IRQ_CPU_OCTEON
1321 select CPU_HAS_PREFETCH
1322 select CPU_SUPPORTS_64BIT_KERNEL
1323 select SYS_SUPPORTS_SMP
1324 select NR_CPUS_DEFAULT_16
1325 select WEAK_ORDERING
1326 select CPU_SUPPORTS_HIGHMEM
1327 select CPU_SUPPORTS_HUGEPAGES
1328 help
1329 The Cavium Octeon processor is a highly integrated chip containing
1330 many ethernet hardware widgets for networking tasks. The processor
1331 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1332 Full details can be found at http://www.caviumnetworks.com.
1333
1334 endchoice
1335
1336 if CPU_LOONGSON2F
1337 config CPU_NOP_WORKAROUNDS
1338 bool
1339
1340 config CPU_JUMP_WORKAROUNDS
1341 bool
1342
1343 config CPU_LOONGSON2F_WORKAROUNDS
1344 bool "Loongson 2F Workarounds"
1345 default y
1346 select CPU_NOP_WORKAROUNDS
1347 select CPU_JUMP_WORKAROUNDS
1348 help
1349 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1350 require workarounds. Without workarounds the system may hang
1351 unexpectedly. For more information please refer to the gas
1352 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1353
1354 Loongson 2F03 and later have fixed these issues and no workarounds
1355 are needed. The workarounds have no significant side effect on them
1356 but may decrease the performance of the system so this option should
1357 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1358 systems.
1359
1360 If unsure, please say Y.
1361 endif # CPU_LOONGSON2F
1362
1363 config SYS_SUPPORTS_ZBOOT
1364 bool
1365 select HAVE_KERNEL_GZIP
1366 select HAVE_KERNEL_BZIP2
1367 select HAVE_KERNEL_LZMA
1368 select HAVE_KERNEL_LZO
1369
1370 config SYS_SUPPORTS_ZBOOT_UART16550
1371 bool
1372 select SYS_SUPPORTS_ZBOOT
1373
1374 config CPU_LOONGSON2
1375 bool
1376 select CPU_SUPPORTS_32BIT_KERNEL
1377 select CPU_SUPPORTS_64BIT_KERNEL
1378 select CPU_SUPPORTS_HIGHMEM
1379
1380 config SYS_HAS_CPU_LOONGSON2E
1381 bool
1382
1383 config SYS_HAS_CPU_LOONGSON2F
1384 bool
1385 select CPU_SUPPORTS_CPUFREQ
1386 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1387 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1388
1389 config SYS_HAS_CPU_MIPS32_R1
1390 bool
1391
1392 config SYS_HAS_CPU_MIPS32_R2
1393 bool
1394
1395 config SYS_HAS_CPU_MIPS64_R1
1396 bool
1397
1398 config SYS_HAS_CPU_MIPS64_R2
1399 bool
1400
1401 config SYS_HAS_CPU_R3000
1402 bool
1403
1404 config SYS_HAS_CPU_TX39XX
1405 bool
1406
1407 config SYS_HAS_CPU_VR41XX
1408 bool
1409
1410 config SYS_HAS_CPU_R4300
1411 bool
1412
1413 config SYS_HAS_CPU_R4X00
1414 bool
1415
1416 config SYS_HAS_CPU_TX49XX
1417 bool
1418
1419 config SYS_HAS_CPU_R5000
1420 bool
1421
1422 config SYS_HAS_CPU_R5432
1423 bool
1424
1425 config SYS_HAS_CPU_R5500
1426 bool
1427
1428 config SYS_HAS_CPU_R6000
1429 bool
1430
1431 config SYS_HAS_CPU_NEVADA
1432 bool
1433
1434 config SYS_HAS_CPU_R8000
1435 bool
1436
1437 config SYS_HAS_CPU_R10000
1438 bool
1439
1440 config SYS_HAS_CPU_RM7000
1441 bool
1442
1443 config SYS_HAS_CPU_RM9000
1444 bool
1445
1446 config SYS_HAS_CPU_SB1
1447 bool
1448
1449 config SYS_HAS_CPU_CAVIUM_OCTEON
1450 bool
1451
1452 #
1453 # CPU may reorder R->R, R->W, W->R, W->W
1454 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1455 #
1456 config WEAK_ORDERING
1457 bool
1458
1459 #
1460 # CPU may reorder reads and writes beyond LL/SC
1461 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1462 #
1463 config WEAK_REORDERING_BEYOND_LLSC
1464 bool
1465 endmenu
1466
1467 #
1468 # These two indicate any level of the MIPS32 and MIPS64 architecture
1469 #
1470 config CPU_MIPS32
1471 bool
1472 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1473
1474 config CPU_MIPS64
1475 bool
1476 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1477
1478 #
1479 # These two indicate the revision of the architecture, either Release 1 or Release 2
1480 #
1481 config CPU_MIPSR1
1482 bool
1483 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1484
1485 config CPU_MIPSR2
1486 bool
1487 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1488
1489 config SYS_SUPPORTS_32BIT_KERNEL
1490 bool
1491 config SYS_SUPPORTS_64BIT_KERNEL
1492 bool
1493 config CPU_SUPPORTS_32BIT_KERNEL
1494 bool
1495 config CPU_SUPPORTS_64BIT_KERNEL
1496 bool
1497 config CPU_SUPPORTS_CPUFREQ
1498 bool
1499 config CPU_SUPPORTS_ADDRWINCFG
1500 bool
1501 config CPU_SUPPORTS_HUGEPAGES
1502 bool
1503 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1504 bool
1505 config MIPS_PGD_C0_CONTEXT
1506 bool
1507 default y if 64BIT && CPU_MIPSR2
1508
1509 #
1510 # Set to y for ptrace access to watch registers.
1511 #
1512 config HARDWARE_WATCHPOINTS
1513 bool
1514 default y if CPU_MIPSR1 || CPU_MIPSR2
1515
1516 menu "Kernel type"
1517
1518 choice
1519
1520 prompt "Kernel code model"
1521 help
1522 You should only select this option if you have a workload that
1523 actually benefits from 64-bit processing or if your machine has
1524 large memory. You will only be presented a single option in this
1525 menu if your system does not support both 32-bit and 64-bit kernels.
1526
1527 config 32BIT
1528 bool "32-bit kernel"
1529 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1530 select TRAD_SIGNALS
1531 help
1532 Select this option if you want to build a 32-bit kernel.
1533 config 64BIT
1534 bool "64-bit kernel"
1535 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1536 select HAVE_SYSCALL_WRAPPERS
1537 help
1538 Select this option if you want to build a 64-bit kernel.
1539
1540 endchoice
1541
1542 choice
1543 prompt "Kernel page size"
1544 default PAGE_SIZE_4KB
1545
1546 config PAGE_SIZE_4KB
1547 bool "4kB"
1548 depends on !CPU_LOONGSON2
1549 help
1550 This option select the standard 4kB Linux page size. On some
1551 R3000-family processors this is the only available page size. Using
1552 4kB page size will minimize memory consumption and is therefore
1553 recommended for low memory systems.
1554
1555 config PAGE_SIZE_8KB
1556 bool "8kB"
1557 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1558 help
1559 Using 8kB page size will result in higher performance kernel at
1560 the price of higher memory consumption. This option is available
1561 only on R8000 and cnMIPS processors. Note that you will need a
1562 suitable Linux distribution to support this.
1563
1564 config PAGE_SIZE_16KB
1565 bool "16kB"
1566 depends on !CPU_R3000 && !CPU_TX39XX
1567 help
1568 Using 16kB page size will result in higher performance kernel at
1569 the price of higher memory consumption. This option is available on
1570 all non-R3000 family processors. Note that you will need a suitable
1571 Linux distribution to support this.
1572
1573 config PAGE_SIZE_32KB
1574 bool "32kB"
1575 depends on CPU_CAVIUM_OCTEON
1576 help
1577 Using 32kB page size will result in higher performance kernel at
1578 the price of higher memory consumption. This option is available
1579 only on cnMIPS cores. Note that you will need a suitable Linux
1580 distribution to support this.
1581
1582 config PAGE_SIZE_64KB
1583 bool "64kB"
1584 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1585 help
1586 Using 64kB page size will result in higher performance kernel at
1587 the price of higher memory consumption. This option is available on
1588 all non-R3000 family processor. Not that at the time of this
1589 writing this option is still high experimental.
1590
1591 endchoice
1592
1593 config BOARD_SCACHE
1594 bool
1595
1596 config IP22_CPU_SCACHE
1597 bool
1598 select BOARD_SCACHE
1599
1600 #
1601 # Support for a MIPS32 / MIPS64 style S-caches
1602 #
1603 config MIPS_CPU_SCACHE
1604 bool
1605 select BOARD_SCACHE
1606
1607 config R5000_CPU_SCACHE
1608 bool
1609 select BOARD_SCACHE
1610
1611 config RM7000_CPU_SCACHE
1612 bool
1613 select BOARD_SCACHE
1614
1615 config SIBYTE_DMA_PAGEOPS
1616 bool "Use DMA to clear/copy pages"
1617 depends on CPU_SB1
1618 help
1619 Instead of using the CPU to zero and copy pages, use a Data Mover
1620 channel. These DMA channels are otherwise unused by the standard
1621 SiByte Linux port. Seems to give a small performance benefit.
1622
1623 config CPU_HAS_PREFETCH
1624 bool
1625
1626 choice
1627 prompt "MIPS MT options"
1628
1629 config MIPS_MT_DISABLED
1630 bool "Disable multithreading support."
1631 help
1632 Use this option if your workload can't take advantage of
1633 MIPS hardware multithreading support. On systems that don't have
1634 the option of an MT-enabled processor this option will be the only
1635 option in this menu.
1636
1637 config MIPS_MT_SMP
1638 bool "Use 1 TC on each available VPE for SMP"
1639 depends on SYS_SUPPORTS_MULTITHREADING
1640 select CPU_MIPSR2_IRQ_VI
1641 select CPU_MIPSR2_IRQ_EI
1642 select MIPS_MT
1643 select NR_CPUS_DEFAULT_2
1644 select SMP
1645 select SYS_SUPPORTS_SCHED_SMT if SMP
1646 select SYS_SUPPORTS_SMP
1647 select SMP_UP
1648 help
1649 This is a kernel model which is also known a VSMP or lately
1650 has been marketesed into SMVP.
1651
1652 config MIPS_MT_SMTC
1653 bool "SMTC: Use all TCs on all VPEs for SMP"
1654 depends on CPU_MIPS32_R2
1655 #depends on CPU_MIPS64_R2 # once there is hardware ...
1656 depends on SYS_SUPPORTS_MULTITHREADING
1657 select CPU_MIPSR2_IRQ_VI
1658 select CPU_MIPSR2_IRQ_EI
1659 select MIPS_MT
1660 select NR_CPUS_DEFAULT_8
1661 select SMP
1662 select SYS_SUPPORTS_SMP
1663 select SMP_UP
1664 help
1665 This is a kernel model which is known a SMTC or lately has been
1666 marketesed into SMVP.
1667
1668 endchoice
1669
1670 config MIPS_MT
1671 bool
1672
1673 config SCHED_SMT
1674 bool "SMT (multithreading) scheduler support"
1675 depends on SYS_SUPPORTS_SCHED_SMT
1676 default n
1677 help
1678 SMT scheduler support improves the CPU scheduler's decision making
1679 when dealing with MIPS MT enabled cores at a cost of slightly
1680 increased overhead in some places. If unsure say N here.
1681
1682 config SYS_SUPPORTS_SCHED_SMT
1683 bool
1684
1685
1686 config SYS_SUPPORTS_MULTITHREADING
1687 bool
1688
1689 config MIPS_MT_FPAFF
1690 bool "Dynamic FPU affinity for FP-intensive threads"
1691 default y
1692 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1693
1694 config MIPS_VPE_LOADER
1695 bool "VPE loader support."
1696 depends on SYS_SUPPORTS_MULTITHREADING
1697 select CPU_MIPSR2_IRQ_VI
1698 select CPU_MIPSR2_IRQ_EI
1699 select MIPS_MT
1700 help
1701 Includes a loader for loading an elf relocatable object
1702 onto another VPE and running it.
1703
1704 config MIPS_MT_SMTC_IM_BACKSTOP
1705 bool "Use per-TC register bits as backstop for inhibited IM bits"
1706 depends on MIPS_MT_SMTC
1707 default n
1708 help
1709 To support multiple TC microthreads acting as "CPUs" within
1710 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1711 during interrupt handling. To support legacy drivers and interrupt
1712 controller management code, SMTC has a "backstop" to track and
1713 if necessary restore the interrupt mask. This has some performance
1714 impact on interrupt service overhead.
1715
1716 config MIPS_MT_SMTC_IRQAFF
1717 bool "Support IRQ affinity API"
1718 depends on MIPS_MT_SMTC
1719 default n
1720 help
1721 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1722 for SMTC Linux kernel. Requires platform support, of which
1723 an example can be found in the MIPS kernel i8259 and Malta
1724 platform code. Adds some overhead to interrupt dispatch, and
1725 should be used only if you know what you are doing.
1726
1727 config MIPS_VPE_LOADER_TOM
1728 bool "Load VPE program into memory hidden from linux"
1729 depends on MIPS_VPE_LOADER
1730 default y
1731 help
1732 The loader can use memory that is present but has been hidden from
1733 Linux using the kernel command line option "mem=xxMB". It's up to
1734 you to ensure the amount you put in the option and the space your
1735 program requires is less or equal to the amount physically present.
1736
1737 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1738 config MIPS_VPE_APSP_API
1739 bool "Enable support for AP/SP API (RTLX)"
1740 depends on MIPS_VPE_LOADER
1741 help
1742
1743 config MIPS_APSP_KSPD
1744 bool "Enable KSPD"
1745 depends on MIPS_VPE_APSP_API
1746 default y
1747 help
1748 KSPD is a kernel daemon that accepts syscall requests from the SP
1749 side, actions them and returns the results. It also handles the
1750 "exit" syscall notifying other kernel modules the SP program is
1751 exiting. You probably want to say yes here.
1752
1753 config MIPS_CMP
1754 bool "MIPS CMP framework support"
1755 depends on SYS_SUPPORTS_MIPS_CMP
1756 select SYNC_R4K
1757 select SYS_SUPPORTS_SMP
1758 select SYS_SUPPORTS_SCHED_SMT if SMP
1759 select WEAK_ORDERING
1760 default n
1761 help
1762 This is a placeholder option for the GCMP work. It will need to
1763 be handled differently...
1764
1765 config SB1_PASS_1_WORKAROUNDS
1766 bool
1767 depends on CPU_SB1_PASS_1
1768 default y
1769
1770 config SB1_PASS_2_WORKAROUNDS
1771 bool
1772 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1773 default y
1774
1775 config SB1_PASS_2_1_WORKAROUNDS
1776 bool
1777 depends on CPU_SB1 && CPU_SB1_PASS_2
1778 default y
1779
1780 config 64BIT_PHYS_ADDR
1781 bool
1782
1783 config ARCH_PHYS_ADDR_T_64BIT
1784 def_bool 64BIT_PHYS_ADDR
1785
1786 config CPU_HAS_SMARTMIPS
1787 depends on SYS_SUPPORTS_SMARTMIPS
1788 bool "Support for the SmartMIPS ASE"
1789 help
1790 SmartMIPS is a extension of the MIPS32 architecture aimed at
1791 increased security at both hardware and software level for
1792 smartcards. Enabling this option will allow proper use of the
1793 SmartMIPS instructions by Linux applications. However a kernel with
1794 this option will not work on a MIPS core without SmartMIPS core. If
1795 you don't know you probably don't have SmartMIPS and should say N
1796 here.
1797
1798 config CPU_HAS_WB
1799 bool
1800
1801 #
1802 # Vectored interrupt mode is an R2 feature
1803 #
1804 config CPU_MIPSR2_IRQ_VI
1805 bool
1806
1807 #
1808 # Extended interrupt mode is an R2 feature
1809 #
1810 config CPU_MIPSR2_IRQ_EI
1811 bool
1812
1813 config CPU_HAS_SYNC
1814 bool
1815 depends on !CPU_R3000
1816 default y
1817
1818 config GENERIC_CLOCKEVENTS_BROADCAST
1819 bool
1820
1821 #
1822 # CPU non-features
1823 #
1824 config CPU_DADDI_WORKAROUNDS
1825 bool
1826
1827 config CPU_R4000_WORKAROUNDS
1828 bool
1829 select CPU_R4400_WORKAROUNDS
1830
1831 config CPU_R4400_WORKAROUNDS
1832 bool
1833
1834 #
1835 # Use the generic interrupt handling code in kernel/irq/:
1836 #
1837 config GENERIC_HARDIRQS
1838 bool
1839 default y
1840
1841 config GENERIC_IRQ_PROBE
1842 bool
1843 default y
1844
1845 config IRQ_PER_CPU
1846 bool
1847
1848 #
1849 # - Highmem only makes sense for the 32-bit kernel.
1850 # - The current highmem code will only work properly on physically indexed
1851 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1852 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1853 # moment we protect the user and offer the highmem option only on machines
1854 # where it's known to be safe. This will not offer highmem on a few systems
1855 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1856 # indexed CPUs but we're playing safe.
1857 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1858 # know they might have memory configurations that could make use of highmem
1859 # support.
1860 #
1861 config HIGHMEM
1862 bool "High Memory Support"
1863 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1864
1865 config CPU_SUPPORTS_HIGHMEM
1866 bool
1867
1868 config SYS_SUPPORTS_HIGHMEM
1869 bool
1870
1871 config SYS_SUPPORTS_SMARTMIPS
1872 bool
1873
1874 config ARCH_FLATMEM_ENABLE
1875 def_bool y
1876 depends on !NUMA && !CPU_LOONGSON2
1877
1878 config ARCH_DISCONTIGMEM_ENABLE
1879 bool
1880 default y if SGI_IP27
1881 help
1882 Say Y to support efficient handling of discontiguous physical memory,
1883 for architectures which are either NUMA (Non-Uniform Memory Access)
1884 or have huge holes in the physical address space for other reasons.
1885 See <file:Documentation/vm/numa> for more.
1886
1887 config ARCH_POPULATES_NODE_MAP
1888 def_bool y
1889
1890 config ARCH_SPARSEMEM_ENABLE
1891 bool
1892 select SPARSEMEM_STATIC
1893
1894 config NUMA
1895 bool "NUMA Support"
1896 depends on SYS_SUPPORTS_NUMA
1897 help
1898 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1899 Access). This option improves performance on systems with more
1900 than two nodes; on two node systems it is generally better to
1901 leave it disabled; on single node systems disable this option
1902 disabled.
1903
1904 config SYS_SUPPORTS_NUMA
1905 bool
1906
1907 config NODES_SHIFT
1908 int
1909 default "6"
1910 depends on NEED_MULTIPLE_NODES
1911
1912 source "mm/Kconfig"
1913
1914 config SMP
1915 bool "Multi-Processing support"
1916 depends on SYS_SUPPORTS_SMP
1917 select IRQ_PER_CPU
1918 select USE_GENERIC_SMP_HELPERS
1919 help
1920 This enables support for systems with more than one CPU. If you have
1921 a system with only one CPU, like most personal computers, say N. If
1922 you have a system with more than one CPU, say Y.
1923
1924 If you say N here, the kernel will run on single and multiprocessor
1925 machines, but will use only one CPU of a multiprocessor machine. If
1926 you say Y here, the kernel will run on many, but not all,
1927 singleprocessor machines. On a singleprocessor machine, the kernel
1928 will run faster if you say N here.
1929
1930 People using multiprocessor machines who say Y here should also say
1931 Y to "Enhanced Real Time Clock Support", below.
1932
1933 See also the SMP-HOWTO available at
1934 <http://www.tldp.org/docs.html#howto>.
1935
1936 If you don't know what to do here, say N.
1937
1938 config SMP_UP
1939 bool
1940
1941 config SYS_SUPPORTS_MIPS_CMP
1942 bool
1943
1944 config SYS_SUPPORTS_SMP
1945 bool
1946
1947 config NR_CPUS_DEFAULT_1
1948 bool
1949
1950 config NR_CPUS_DEFAULT_2
1951 bool
1952
1953 config NR_CPUS_DEFAULT_4
1954 bool
1955
1956 config NR_CPUS_DEFAULT_8
1957 bool
1958
1959 config NR_CPUS_DEFAULT_16
1960 bool
1961
1962 config NR_CPUS_DEFAULT_32
1963 bool
1964
1965 config NR_CPUS_DEFAULT_64
1966 bool
1967
1968 config NR_CPUS
1969 int "Maximum number of CPUs (2-64)"
1970 range 1 64 if NR_CPUS_DEFAULT_1
1971 depends on SMP
1972 default "1" if NR_CPUS_DEFAULT_1
1973 default "2" if NR_CPUS_DEFAULT_2
1974 default "4" if NR_CPUS_DEFAULT_4
1975 default "8" if NR_CPUS_DEFAULT_8
1976 default "16" if NR_CPUS_DEFAULT_16
1977 default "32" if NR_CPUS_DEFAULT_32
1978 default "64" if NR_CPUS_DEFAULT_64
1979 help
1980 This allows you to specify the maximum number of CPUs which this
1981 kernel will support. The maximum supported value is 32 for 32-bit
1982 kernel and 64 for 64-bit kernels; the minimum value which makes
1983 sense is 1 for Qemu (useful only for kernel debugging purposes)
1984 and 2 for all others.
1985
1986 This is purely to save memory - each supported CPU adds
1987 approximately eight kilobytes to the kernel image. For best
1988 performance should round up your number of processors to the next
1989 power of two.
1990
1991 source "kernel/time/Kconfig"
1992
1993 #
1994 # Timer Interrupt Frequency Configuration
1995 #
1996
1997 choice
1998 prompt "Timer frequency"
1999 default HZ_250
2000 help
2001 Allows the configuration of the timer frequency.
2002
2003 config HZ_48
2004 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2005
2006 config HZ_100
2007 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2008
2009 config HZ_128
2010 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2011
2012 config HZ_250
2013 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2014
2015 config HZ_256
2016 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2017
2018 config HZ_1000
2019 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2020
2021 config HZ_1024
2022 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2023
2024 endchoice
2025
2026 config SYS_SUPPORTS_48HZ
2027 bool
2028
2029 config SYS_SUPPORTS_100HZ
2030 bool
2031
2032 config SYS_SUPPORTS_128HZ
2033 bool
2034
2035 config SYS_SUPPORTS_250HZ
2036 bool
2037
2038 config SYS_SUPPORTS_256HZ
2039 bool
2040
2041 config SYS_SUPPORTS_1000HZ
2042 bool
2043
2044 config SYS_SUPPORTS_1024HZ
2045 bool
2046
2047 config SYS_SUPPORTS_ARBIT_HZ
2048 bool
2049 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2050 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2051 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2052 !SYS_SUPPORTS_1024HZ
2053
2054 config HZ
2055 int
2056 default 48 if HZ_48
2057 default 100 if HZ_100
2058 default 128 if HZ_128
2059 default 250 if HZ_250
2060 default 256 if HZ_256
2061 default 1000 if HZ_1000
2062 default 1024 if HZ_1024
2063
2064 source "kernel/Kconfig.preempt"
2065
2066 config MIPS_INSANE_LARGE
2067 bool "Support for large 64-bit configurations"
2068 depends on CPU_R10000 && 64BIT
2069 help
2070 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2071 previous 64-bit processors which only supported 40 bit / 1TB. If you
2072 need processes of more than 1TB virtual address space, say Y here.
2073 This will result in additional memory usage, so it is not
2074 recommended for normal users.
2075
2076 config KEXEC
2077 bool "Kexec system call (EXPERIMENTAL)"
2078 depends on EXPERIMENTAL
2079 help
2080 kexec is a system call that implements the ability to shutdown your
2081 current kernel, and to start another kernel. It is like a reboot
2082 but it is independent of the system firmware. And like a reboot
2083 you can start any kernel with it, not just Linux.
2084
2085 The name comes from the similarity to the exec system call.
2086
2087 It is an ongoing process to be certain the hardware in a machine
2088 is properly shutdown, so do not be surprised if this code does not
2089 initially work for you. It may help to enable device hotplugging
2090 support. As of this writing the exact hardware interface is
2091 strongly in flux, so no good recommendation can be made.
2092
2093 config SECCOMP
2094 bool "Enable seccomp to safely compute untrusted bytecode"
2095 depends on PROC_FS
2096 default y
2097 help
2098 This kernel feature is useful for number crunching applications
2099 that may need to compute untrusted bytecode during their
2100 execution. By using pipes or other transports made available to
2101 the process as file descriptors supporting the read/write
2102 syscalls, it's possible to isolate those applications in
2103 their own address space using seccomp. Once seccomp is
2104 enabled via /proc/<pid>/seccomp, it cannot be disabled
2105 and the task is only allowed to execute a few safe syscalls
2106 defined by each seccomp mode.
2107
2108 If unsure, say Y. Only embedded should say N here.
2109
2110 endmenu
2111
2112 config LOCKDEP_SUPPORT
2113 bool
2114 default y
2115
2116 config STACKTRACE_SUPPORT
2117 bool
2118 default y
2119
2120 source "init/Kconfig"
2121
2122 source "kernel/Kconfig.freezer"
2123
2124 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2125
2126 config HW_HAS_EISA
2127 bool
2128 config HW_HAS_PCI
2129 bool
2130
2131 config PCI
2132 bool "Support for PCI controller"
2133 depends on HW_HAS_PCI
2134 select PCI_DOMAINS
2135 help
2136 Find out whether you have a PCI motherboard. PCI is the name of a
2137 bus system, i.e. the way the CPU talks to the other stuff inside
2138 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2139 say Y, otherwise N.
2140
2141 config PCI_DOMAINS
2142 bool
2143
2144 source "drivers/pci/Kconfig"
2145
2146 #
2147 # ISA support is now enabled via select. Too many systems still have the one
2148 # or other ISA chip on the board that users don't know about so don't expect
2149 # users to choose the right thing ...
2150 #
2151 config ISA
2152 bool
2153
2154 config EISA
2155 bool "EISA support"
2156 depends on HW_HAS_EISA
2157 select ISA
2158 select GENERIC_ISA_DMA
2159 ---help---
2160 The Extended Industry Standard Architecture (EISA) bus was
2161 developed as an open alternative to the IBM MicroChannel bus.
2162
2163 The EISA bus provided some of the features of the IBM MicroChannel
2164 bus while maintaining backward compatibility with cards made for
2165 the older ISA bus. The EISA bus saw limited use between 1988 and
2166 1995 when it was made obsolete by the PCI bus.
2167
2168 Say Y here if you are building a kernel for an EISA-based machine.
2169
2170 Otherwise, say N.
2171
2172 source "drivers/eisa/Kconfig"
2173
2174 config TC
2175 bool "TURBOchannel support"
2176 depends on MACH_DECSTATION
2177 help
2178 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2179 processors. Documentation on writing device drivers for TurboChannel
2180 is available at:
2181 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2182
2183 #config ACCESSBUS
2184 # bool "Access.Bus support"
2185 # depends on TC
2186
2187 config MMU
2188 bool
2189 default y
2190
2191 config I8253
2192 bool
2193 select MIPS_EXTERNAL_TIMER
2194
2195 config ZONE_DMA32
2196 bool
2197
2198 source "drivers/pcmcia/Kconfig"
2199
2200 source "drivers/pci/hotplug/Kconfig"
2201
2202 endmenu
2203
2204 menu "Executable file formats"
2205
2206 source "fs/Kconfig.binfmt"
2207
2208 config TRAD_SIGNALS
2209 bool
2210
2211 config MIPS32_COMPAT
2212 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2213 depends on 64BIT
2214 help
2215 Select this option if you want Linux/MIPS 32-bit binary
2216 compatibility. Since all software available for Linux/MIPS is
2217 currently 32-bit you should say Y here.
2218
2219 config COMPAT
2220 bool
2221 depends on MIPS32_COMPAT
2222 default y
2223
2224 config SYSVIPC_COMPAT
2225 bool
2226 depends on COMPAT && SYSVIPC
2227 default y
2228
2229 config MIPS32_O32
2230 bool "Kernel support for o32 binaries"
2231 depends on MIPS32_COMPAT
2232 help
2233 Select this option if you want to run o32 binaries. These are pure
2234 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2235 existing binaries are in this format.
2236
2237 If unsure, say Y.
2238
2239 config MIPS32_N32
2240 bool "Kernel support for n32 binaries"
2241 depends on MIPS32_COMPAT
2242 help
2243 Select this option if you want to run n32 binaries. These are
2244 64-bit binaries using 32-bit quantities for addressing and certain
2245 data that would normally be 64-bit. They are used in special
2246 cases.
2247
2248 If unsure, say N.
2249
2250 config BINFMT_ELF32
2251 bool
2252 default y if MIPS32_O32 || MIPS32_N32
2253
2254 endmenu
2255
2256 menu "Power management options"
2257
2258 config ARCH_HIBERNATION_POSSIBLE
2259 def_bool y
2260 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2261
2262 config ARCH_SUSPEND_POSSIBLE
2263 def_bool y
2264 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2265
2266 source "kernel/power/Kconfig"
2267
2268 endmenu
2269
2270 source "arch/mips/kernel/cpufreq/Kconfig"
2271
2272 source "net/Kconfig"
2273
2274 source "drivers/Kconfig"
2275
2276 source "fs/Kconfig"
2277
2278 source "arch/mips/Kconfig.debug"
2279
2280 source "security/Kconfig"
2281
2282 source "crypto/Kconfig"
2283
2284 source "lib/Kconfig"