kbuild: migrate all arch to the kconfig mainmenu upgrade
[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 RTC_LIB if !MACH_LOONGSON
14
15 menu "Machine selection"
16
17 config ZONE_DMA
18 bool
19
20 choice
21 prompt "System type"
22 default SGI_IP22
23
24 config MACH_ALCHEMY
25 bool "Alchemy processor based machines"
26 select SYS_SUPPORTS_ZBOOT
27
28 config AR7
29 bool "Texas Instruments AR7"
30 select BOOT_ELF32
31 select DMA_NONCOHERENT
32 select CEVT_R4K
33 select CSRC_R4K
34 select IRQ_CPU
35 select NO_EXCEPT_FILL
36 select SWAP_IO_SPACE
37 select SYS_HAS_CPU_MIPS32_R1
38 select SYS_HAS_EARLY_PRINTK
39 select SYS_SUPPORTS_32BIT_KERNEL
40 select SYS_SUPPORTS_LITTLE_ENDIAN
41 select SYS_SUPPORTS_ZBOOT_UART16550
42 select ARCH_REQUIRE_GPIOLIB
43 select GCD
44 select VLYNQ
45 help
46 Support for the Texas Instruments AR7 System-on-a-Chip
47 family: TNETD7100, 7200 and 7300.
48
49 config BCM47XX
50 bool "Broadcom BCM47XX based boards"
51 select CEVT_R4K
52 select CSRC_R4K
53 select DMA_NONCOHERENT
54 select HW_HAS_PCI
55 select IRQ_CPU
56 select SYS_HAS_CPU_MIPS32_R1
57 select SYS_SUPPORTS_32BIT_KERNEL
58 select SYS_SUPPORTS_LITTLE_ENDIAN
59 select SSB
60 select SSB_DRIVER_MIPS
61 select SSB_DRIVER_EXTIF
62 select SSB_EMBEDDED
63 select SSB_PCICORE_HOSTMODE if PCI
64 select GENERIC_GPIO
65 select SYS_HAS_EARLY_PRINTK
66 select CFE
67 help
68 Support for BCM47XX based boards
69
70 config BCM63XX
71 bool "Broadcom BCM63XX based boards"
72 select CEVT_R4K
73 select CSRC_R4K
74 select DMA_NONCOHERENT
75 select IRQ_CPU
76 select SYS_HAS_CPU_MIPS32_R1
77 select SYS_SUPPORTS_32BIT_KERNEL
78 select SYS_SUPPORTS_BIG_ENDIAN
79 select SYS_HAS_EARLY_PRINTK
80 select SWAP_IO_SPACE
81 select ARCH_REQUIRE_GPIOLIB
82 help
83 Support for BCM63XX based boards
84
85 config MIPS_COBALT
86 bool "Cobalt Server"
87 select CEVT_R4K
88 select CSRC_R4K
89 select CEVT_GT641XX
90 select DMA_NONCOHERENT
91 select HW_HAS_PCI
92 select I8253
93 select I8259
94 select IRQ_CPU
95 select IRQ_GT641XX
96 select PCI_GT64XXX_PCI0
97 select PCI
98 select SYS_HAS_CPU_NEVADA
99 select SYS_HAS_EARLY_PRINTK
100 select SYS_SUPPORTS_32BIT_KERNEL
101 select SYS_SUPPORTS_64BIT_KERNEL
102 select SYS_SUPPORTS_LITTLE_ENDIAN
103
104 config MACH_DECSTATION
105 bool "DECstations"
106 select BOOT_ELF32
107 select CEVT_DS1287
108 select CEVT_R4K
109 select CSRC_IOASIC
110 select CSRC_R4K
111 select CPU_DADDI_WORKAROUNDS if 64BIT
112 select CPU_R4000_WORKAROUNDS if 64BIT
113 select CPU_R4400_WORKAROUNDS if 64BIT
114 select DMA_NONCOHERENT
115 select NO_IOPORT
116 select IRQ_CPU
117 select SYS_HAS_CPU_R3000
118 select SYS_HAS_CPU_R4X00
119 select SYS_SUPPORTS_32BIT_KERNEL
120 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
121 select SYS_SUPPORTS_LITTLE_ENDIAN
122 select SYS_SUPPORTS_128HZ
123 select SYS_SUPPORTS_256HZ
124 select SYS_SUPPORTS_1024HZ
125 help
126 This enables support for DEC's MIPS based workstations. For details
127 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
128 DECstation porting pages on <http://decstation.unix-ag.org/>.
129
130 If you have one of the following DECstation Models you definitely
131 want to choose R4xx0 for the CPU Type:
132
133 DECstation 5000/50
134 DECstation 5000/150
135 DECstation 5000/260
136 DECsystem 5900/260
137
138 otherwise choose R3000.
139
140 config MACH_JAZZ
141 bool "Jazz family of machines"
142 select ARC
143 select ARC32
144 select ARCH_MAY_HAVE_PC_FDC
145 select CEVT_R4K
146 select CSRC_R4K
147 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
148 select GENERIC_ISA_DMA
149 select IRQ_CPU
150 select I8253
151 select I8259
152 select ISA
153 select SYS_HAS_CPU_R4X00
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
156 select SYS_SUPPORTS_100HZ
157 help
158 This a family of machines based on the MIPS R4030 chipset which was
159 used by several vendors to build RISC/os and Windows NT workstations.
160 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
161 Olivetti M700-10 workstations.
162
163 config LASAT
164 bool "LASAT Networks platforms"
165 select CEVT_R4K
166 select CSRC_R4K
167 select DMA_NONCOHERENT
168 select SYS_HAS_EARLY_PRINTK
169 select HW_HAS_PCI
170 select IRQ_CPU
171 select PCI_GT64XXX_PCI0
172 select MIPS_NILE4
173 select R5000_CPU_SCACHE
174 select SYS_HAS_CPU_R5000
175 select SYS_SUPPORTS_32BIT_KERNEL
176 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
177 select SYS_SUPPORTS_LITTLE_ENDIAN
178
179 config MACH_LOONGSON
180 bool "Loongson family of machines"
181 select SYS_SUPPORTS_ZBOOT
182 help
183 This enables the support of Loongson family of machines.
184
185 Loongson is a family of general-purpose MIPS-compatible CPUs.
186 developed at Institute of Computing Technology (ICT),
187 Chinese Academy of Sciences (CAS) in the People's Republic
188 of China. The chief architect is Professor Weiwu Hu.
189
190 config MIPS_MALTA
191 bool "MIPS Malta board"
192 select ARCH_MAY_HAVE_PC_FDC
193 select BOOT_ELF32
194 select BOOT_RAW
195 select CEVT_R4K
196 select CSRC_R4K
197 select DMA_NONCOHERENT
198 select GENERIC_ISA_DMA
199 select IRQ_CPU
200 select IRQ_GIC
201 select HW_HAS_PCI
202 select I8253
203 select I8259
204 select MIPS_BOARDS_GEN
205 select MIPS_BONITO64
206 select MIPS_CPU_SCACHE
207 select PCI_GT64XXX_PCI0
208 select MIPS_MSC
209 select SWAP_IO_SPACE
210 select SYS_HAS_CPU_MIPS32_R1
211 select SYS_HAS_CPU_MIPS32_R2
212 select SYS_HAS_CPU_MIPS64_R1
213 select SYS_HAS_CPU_NEVADA
214 select SYS_HAS_CPU_RM7000
215 select SYS_HAS_EARLY_PRINTK
216 select SYS_SUPPORTS_32BIT_KERNEL
217 select SYS_SUPPORTS_64BIT_KERNEL
218 select SYS_SUPPORTS_BIG_ENDIAN
219 select SYS_SUPPORTS_LITTLE_ENDIAN
220 select SYS_SUPPORTS_MIPS_CMP
221 select SYS_SUPPORTS_MULTITHREADING
222 select SYS_SUPPORTS_SMARTMIPS
223 select SYS_SUPPORTS_ZBOOT
224 help
225 This enables support for the MIPS Technologies Malta evaluation
226 board.
227
228 config MIPS_SIM
229 bool 'MIPS simulator (MIPSsim)'
230 select CEVT_R4K
231 select CSRC_R4K
232 select DMA_NONCOHERENT
233 select SYS_HAS_EARLY_PRINTK
234 select IRQ_CPU
235 select BOOT_RAW
236 select SYS_HAS_CPU_MIPS32_R1
237 select SYS_HAS_CPU_MIPS32_R2
238 select SYS_HAS_EARLY_PRINTK
239 select SYS_SUPPORTS_32BIT_KERNEL
240 select SYS_SUPPORTS_BIG_ENDIAN
241 select SYS_SUPPORTS_MULTITHREADING
242 select SYS_SUPPORTS_LITTLE_ENDIAN
243 help
244 This option enables support for MIPS Technologies MIPSsim software
245 emulator.
246
247 config NEC_MARKEINS
248 bool "NEC EMMA2RH Mark-eins board"
249 select SOC_EMMA2RH
250 select HW_HAS_PCI
251 help
252 This enables support for the NEC Electronics Mark-eins boards.
253
254 config MACH_VR41XX
255 bool "NEC VR4100 series based machines"
256 select CEVT_R4K
257 select CSRC_R4K
258 select SYS_HAS_CPU_VR41XX
259 select ARCH_REQUIRE_GPIOLIB
260
261 config NXP_STB220
262 bool "NXP STB220 board"
263 select SOC_PNX833X
264 help
265 Support for NXP Semiconductors STB220 Development Board.
266
267 config NXP_STB225
268 bool "NXP 225 board"
269 select SOC_PNX833X
270 select SOC_PNX8335
271 help
272 Support for NXP Semiconductors STB225 Development Board.
273
274 config PNX8550_JBS
275 bool "NXP PNX8550 based JBS board"
276 select PNX8550
277 select SYS_SUPPORTS_LITTLE_ENDIAN
278
279 config PNX8550_STB810
280 bool "NXP PNX8550 based STB810 board"
281 select PNX8550
282 select SYS_SUPPORTS_LITTLE_ENDIAN
283
284 config PMC_MSP
285 bool "PMC-Sierra MSP chipsets"
286 depends on EXPERIMENTAL
287 select DMA_NONCOHERENT
288 select SWAP_IO_SPACE
289 select NO_EXCEPT_FILL
290 select BOOT_RAW
291 select SYS_HAS_CPU_MIPS32_R1
292 select SYS_HAS_CPU_MIPS32_R2
293 select SYS_SUPPORTS_32BIT_KERNEL
294 select SYS_SUPPORTS_BIG_ENDIAN
295 select IRQ_CPU
296 select SERIAL_8250
297 select SERIAL_8250_CONSOLE
298 help
299 This adds support for the PMC-Sierra family of Multi-Service
300 Processor System-On-A-Chips. These parts include a number
301 of integrated peripherals, interfaces and DSPs in addition to
302 a variety of MIPS cores.
303
304 config PMC_YOSEMITE
305 bool "PMC-Sierra Yosemite eval board"
306 select CEVT_R4K
307 select CSRC_R4K
308 select DMA_COHERENT
309 select HW_HAS_PCI
310 select IRQ_CPU
311 select IRQ_CPU_RM7K
312 select IRQ_CPU_RM9K
313 select SWAP_IO_SPACE
314 select SYS_HAS_CPU_RM9000
315 select SYS_HAS_EARLY_PRINTK
316 select SYS_SUPPORTS_32BIT_KERNEL
317 select SYS_SUPPORTS_64BIT_KERNEL
318 select SYS_SUPPORTS_BIG_ENDIAN
319 select SYS_SUPPORTS_HIGHMEM
320 select SYS_SUPPORTS_SMP
321 help
322 Yosemite is an evaluation board for the RM9000x2 processor
323 manufactured by PMC-Sierra.
324
325 config POWERTV
326 bool "Cisco PowerTV"
327 select BOOT_ELF32
328 select CEVT_R4K
329 select CPU_MIPSR2_IRQ_VI
330 select CPU_MIPSR2_IRQ_EI
331 select CSRC_POWERTV
332 select DMA_NONCOHERENT
333 select HW_HAS_PCI
334 select SYS_HAS_EARLY_PRINTK
335 select SYS_HAS_CPU_MIPS32_R2
336 select SYS_SUPPORTS_32BIT_KERNEL
337 select SYS_SUPPORTS_BIG_ENDIAN
338 select SYS_SUPPORTS_HIGHMEM
339 select USB_OHCI_LITTLE_ENDIAN
340 help
341 This enables support for the Cisco PowerTV Platform.
342
343 config SGI_IP22
344 bool "SGI IP22 (Indy/Indigo2)"
345 select ARC
346 select ARC32
347 select BOOT_ELF32
348 select CEVT_R4K
349 select CSRC_R4K
350 select DEFAULT_SGI_PARTITION
351 select DMA_NONCOHERENT
352 select HW_HAS_EISA
353 select I8253
354 select I8259
355 select IP22_CPU_SCACHE
356 select IRQ_CPU
357 select GENERIC_ISA_DMA_SUPPORT_BROKEN
358 select SGI_HAS_I8042
359 select SGI_HAS_INDYDOG
360 select SGI_HAS_HAL2
361 select SGI_HAS_SEEQ
362 select SGI_HAS_WD93
363 select SGI_HAS_ZILOG
364 select SWAP_IO_SPACE
365 select SYS_HAS_CPU_R4X00
366 select SYS_HAS_CPU_R5000
367 #
368 # Disable EARLY_PRINTK for now since it leads to overwritten prom
369 # memory during early boot on some machines.
370 #
371 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
372 # for a more details discussion
373 #
374 # select SYS_HAS_EARLY_PRINTK
375 select SYS_SUPPORTS_32BIT_KERNEL
376 select SYS_SUPPORTS_64BIT_KERNEL
377 select SYS_SUPPORTS_BIG_ENDIAN
378 help
379 This are the SGI Indy, Challenge S and Indigo2, as well as certain
380 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
381 that runs on these, say Y here.
382
383 config SGI_IP27
384 bool "SGI IP27 (Origin200/2000)"
385 select ARC
386 select ARC64
387 select BOOT_ELF64
388 select DEFAULT_SGI_PARTITION
389 select DMA_COHERENT
390 select SYS_HAS_EARLY_PRINTK
391 select HW_HAS_PCI
392 select NR_CPUS_DEFAULT_64
393 select SYS_HAS_CPU_R10000
394 select SYS_SUPPORTS_64BIT_KERNEL
395 select SYS_SUPPORTS_BIG_ENDIAN
396 select SYS_SUPPORTS_NUMA
397 select SYS_SUPPORTS_SMP
398 help
399 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
400 workstations. To compile a Linux kernel that runs on these, say Y
401 here.
402
403 config SGI_IP28
404 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
405 depends on EXPERIMENTAL
406 select ARC
407 select ARC64
408 select BOOT_ELF64
409 select CEVT_R4K
410 select CSRC_R4K
411 select DEFAULT_SGI_PARTITION
412 select DMA_NONCOHERENT
413 select GENERIC_ISA_DMA_SUPPORT_BROKEN
414 select IRQ_CPU
415 select HW_HAS_EISA
416 select I8253
417 select I8259
418 select SGI_HAS_I8042
419 select SGI_HAS_INDYDOG
420 select SGI_HAS_HAL2
421 select SGI_HAS_SEEQ
422 select SGI_HAS_WD93
423 select SGI_HAS_ZILOG
424 select SWAP_IO_SPACE
425 select SYS_HAS_CPU_R10000
426 #
427 # Disable EARLY_PRINTK for now since it leads to overwritten prom
428 # memory during early boot on some machines.
429 #
430 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
431 # for a more details discussion
432 #
433 # select SYS_HAS_EARLY_PRINTK
434 select SYS_SUPPORTS_64BIT_KERNEL
435 select SYS_SUPPORTS_BIG_ENDIAN
436 help
437 This is the SGI Indigo2 with R10000 processor. To compile a Linux
438 kernel that runs on these, say Y here.
439
440 config SGI_IP32
441 bool "SGI IP32 (O2)"
442 select ARC
443 select ARC32
444 select BOOT_ELF32
445 select CEVT_R4K
446 select CSRC_R4K
447 select DMA_NONCOHERENT
448 select HW_HAS_PCI
449 select IRQ_CPU
450 select R5000_CPU_SCACHE
451 select RM7000_CPU_SCACHE
452 select SYS_HAS_CPU_R5000
453 select SYS_HAS_CPU_R10000 if BROKEN
454 select SYS_HAS_CPU_RM7000
455 select SYS_HAS_CPU_NEVADA
456 select SYS_SUPPORTS_64BIT_KERNEL
457 select SYS_SUPPORTS_BIG_ENDIAN
458 help
459 If you want this kernel to run on SGI O2 workstation, say Y here.
460
461 config SIBYTE_CRHINE
462 bool "Sibyte BCM91120C-CRhine"
463 depends on EXPERIMENTAL
464 select BOOT_ELF32
465 select DMA_COHERENT
466 select SIBYTE_BCM1120
467 select SWAP_IO_SPACE
468 select SYS_HAS_CPU_SB1
469 select SYS_SUPPORTS_BIG_ENDIAN
470 select SYS_SUPPORTS_LITTLE_ENDIAN
471
472 config SIBYTE_CARMEL
473 bool "Sibyte BCM91120x-Carmel"
474 depends on EXPERIMENTAL
475 select BOOT_ELF32
476 select DMA_COHERENT
477 select SIBYTE_BCM1120
478 select SWAP_IO_SPACE
479 select SYS_HAS_CPU_SB1
480 select SYS_SUPPORTS_BIG_ENDIAN
481 select SYS_SUPPORTS_LITTLE_ENDIAN
482
483 config SIBYTE_CRHONE
484 bool "Sibyte BCM91125C-CRhone"
485 depends on EXPERIMENTAL
486 select BOOT_ELF32
487 select DMA_COHERENT
488 select SIBYTE_BCM1125
489 select SWAP_IO_SPACE
490 select SYS_HAS_CPU_SB1
491 select SYS_SUPPORTS_BIG_ENDIAN
492 select SYS_SUPPORTS_HIGHMEM
493 select SYS_SUPPORTS_LITTLE_ENDIAN
494
495 config SIBYTE_RHONE
496 bool "Sibyte BCM91125E-Rhone"
497 depends on EXPERIMENTAL
498 select BOOT_ELF32
499 select DMA_COHERENT
500 select SIBYTE_BCM1125H
501 select SWAP_IO_SPACE
502 select SYS_HAS_CPU_SB1
503 select SYS_SUPPORTS_BIG_ENDIAN
504 select SYS_SUPPORTS_LITTLE_ENDIAN
505
506 config SIBYTE_SWARM
507 bool "Sibyte BCM91250A-SWARM"
508 select BOOT_ELF32
509 select DMA_COHERENT
510 select HAVE_PATA_PLATFORM
511 select NR_CPUS_DEFAULT_2
512 select SIBYTE_SB1250
513 select SWAP_IO_SPACE
514 select SYS_HAS_CPU_SB1
515 select SYS_SUPPORTS_BIG_ENDIAN
516 select SYS_SUPPORTS_HIGHMEM
517 select SYS_SUPPORTS_LITTLE_ENDIAN
518 select ZONE_DMA32 if 64BIT
519
520 config SIBYTE_LITTLESUR
521 bool "Sibyte BCM91250C2-LittleSur"
522 depends on EXPERIMENTAL
523 select BOOT_ELF32
524 select DMA_COHERENT
525 select HAVE_PATA_PLATFORM
526 select NR_CPUS_DEFAULT_2
527 select SIBYTE_SB1250
528 select SWAP_IO_SPACE
529 select SYS_HAS_CPU_SB1
530 select SYS_SUPPORTS_BIG_ENDIAN
531 select SYS_SUPPORTS_HIGHMEM
532 select SYS_SUPPORTS_LITTLE_ENDIAN
533
534 config SIBYTE_SENTOSA
535 bool "Sibyte BCM91250E-Sentosa"
536 depends on EXPERIMENTAL
537 select BOOT_ELF32
538 select DMA_COHERENT
539 select NR_CPUS_DEFAULT_2
540 select SIBYTE_SB1250
541 select SWAP_IO_SPACE
542 select SYS_HAS_CPU_SB1
543 select SYS_SUPPORTS_BIG_ENDIAN
544 select SYS_SUPPORTS_LITTLE_ENDIAN
545
546 config SIBYTE_BIGSUR
547 bool "Sibyte BCM91480B-BigSur"
548 select BOOT_ELF32
549 select DMA_COHERENT
550 select NR_CPUS_DEFAULT_4
551 select SIBYTE_BCM1x80
552 select SWAP_IO_SPACE
553 select SYS_HAS_CPU_SB1
554 select SYS_SUPPORTS_BIG_ENDIAN
555 select SYS_SUPPORTS_HIGHMEM
556 select SYS_SUPPORTS_LITTLE_ENDIAN
557 select ZONE_DMA32 if 64BIT
558
559 config SNI_RM
560 bool "SNI RM200/300/400"
561 select ARC if CPU_LITTLE_ENDIAN
562 select ARC32 if CPU_LITTLE_ENDIAN
563 select SNIPROM if CPU_BIG_ENDIAN
564 select ARCH_MAY_HAVE_PC_FDC
565 select BOOT_ELF32
566 select CEVT_R4K
567 select CSRC_R4K
568 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
569 select DMA_NONCOHERENT
570 select GENERIC_ISA_DMA
571 select HW_HAS_EISA
572 select HW_HAS_PCI
573 select IRQ_CPU
574 select I8253
575 select I8259
576 select ISA
577 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
578 select SYS_HAS_CPU_R4X00
579 select SYS_HAS_CPU_R5000
580 select SYS_HAS_CPU_R10000
581 select R5000_CPU_SCACHE
582 select SYS_HAS_EARLY_PRINTK
583 select SYS_SUPPORTS_32BIT_KERNEL
584 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
585 select SYS_SUPPORTS_BIG_ENDIAN
586 select SYS_SUPPORTS_HIGHMEM
587 select SYS_SUPPORTS_LITTLE_ENDIAN
588 help
589 The SNI RM200/300/400 are MIPS-based machines manufactured by
590 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
591 Technology and now in turn merged with Fujitsu. Say Y here to
592 support this machine type.
593
594 config MACH_TX39XX
595 bool "Toshiba TX39 series based machines"
596
597 config MACH_TX49XX
598 bool "Toshiba TX49 series based machines"
599
600 config MIKROTIK_RB532
601 bool "Mikrotik RB532 boards"
602 select CEVT_R4K
603 select CSRC_R4K
604 select DMA_NONCOHERENT
605 select HW_HAS_PCI
606 select IRQ_CPU
607 select SYS_HAS_CPU_MIPS32_R1
608 select SYS_SUPPORTS_32BIT_KERNEL
609 select SYS_SUPPORTS_LITTLE_ENDIAN
610 select SWAP_IO_SPACE
611 select BOOT_RAW
612 select ARCH_REQUIRE_GPIOLIB
613 help
614 Support the Mikrotik(tm) RouterBoard 532 series,
615 based on the IDT RC32434 SoC.
616
617 config WR_PPMC
618 bool "Wind River PPMC board"
619 select CEVT_R4K
620 select CSRC_R4K
621 select IRQ_CPU
622 select BOOT_ELF32
623 select DMA_NONCOHERENT
624 select HW_HAS_PCI
625 select PCI_GT64XXX_PCI0
626 select SWAP_IO_SPACE
627 select SYS_HAS_CPU_MIPS32_R1
628 select SYS_HAS_CPU_MIPS32_R2
629 select SYS_HAS_CPU_MIPS64_R1
630 select SYS_HAS_CPU_NEVADA
631 select SYS_HAS_CPU_RM7000
632 select SYS_SUPPORTS_32BIT_KERNEL
633 select SYS_SUPPORTS_64BIT_KERNEL
634 select SYS_SUPPORTS_BIG_ENDIAN
635 select SYS_SUPPORTS_LITTLE_ENDIAN
636 help
637 This enables support for the Wind River MIPS32 4KC PPMC evaluation
638 board, which is based on GT64120 bridge chip.
639
640 config CAVIUM_OCTEON_SIMULATOR
641 bool "Cavium Networks Octeon Simulator"
642 select CEVT_R4K
643 select 64BIT_PHYS_ADDR
644 select DMA_COHERENT
645 select SYS_SUPPORTS_64BIT_KERNEL
646 select SYS_SUPPORTS_BIG_ENDIAN
647 select SYS_SUPPORTS_HIGHMEM
648 select SYS_SUPPORTS_HOTPLUG_CPU
649 select SYS_HAS_CPU_CAVIUM_OCTEON
650 help
651 The Octeon simulator is software performance model of the Cavium
652 Octeon Processor. It supports simulating Octeon processors on x86
653 hardware.
654
655 config CAVIUM_OCTEON_REFERENCE_BOARD
656 bool "Cavium Networks Octeon reference board"
657 select CEVT_R4K
658 select 64BIT_PHYS_ADDR
659 select DMA_COHERENT
660 select SYS_SUPPORTS_64BIT_KERNEL
661 select SYS_SUPPORTS_BIG_ENDIAN
662 select SYS_SUPPORTS_HIGHMEM
663 select SYS_SUPPORTS_HOTPLUG_CPU
664 select SYS_HAS_EARLY_PRINTK
665 select SYS_HAS_CPU_CAVIUM_OCTEON
666 select SWAP_IO_SPACE
667 select HW_HAS_PCI
668 select ARCH_SUPPORTS_MSI
669 help
670 This option supports all of the Octeon reference boards from Cavium
671 Networks. It builds a kernel that dynamically determines the Octeon
672 CPU type and supports all known board reference implementations.
673 Some of the supported boards are:
674 EBT3000
675 EBH3000
676 EBH3100
677 Thunder
678 Kodama
679 Hikari
680 Say Y here for most Octeon reference boards.
681
682 endchoice
683
684 source "arch/mips/alchemy/Kconfig"
685 source "arch/mips/bcm63xx/Kconfig"
686 source "arch/mips/jazz/Kconfig"
687 source "arch/mips/lasat/Kconfig"
688 source "arch/mips/pmc-sierra/Kconfig"
689 source "arch/mips/powertv/Kconfig"
690 source "arch/mips/sgi-ip27/Kconfig"
691 source "arch/mips/sibyte/Kconfig"
692 source "arch/mips/txx9/Kconfig"
693 source "arch/mips/vr41xx/Kconfig"
694 source "arch/mips/cavium-octeon/Kconfig"
695 source "arch/mips/loongson/Kconfig"
696
697 endmenu
698
699 config RWSEM_GENERIC_SPINLOCK
700 bool
701 default y
702
703 config RWSEM_XCHGADD_ALGORITHM
704 bool
705
706 config ARCH_HAS_ILOG2_U32
707 bool
708 default n
709
710 config ARCH_HAS_ILOG2_U64
711 bool
712 default n
713
714 config ARCH_SUPPORTS_OPROFILE
715 bool
716 default y if !MIPS_MT_SMTC
717
718 config GENERIC_FIND_NEXT_BIT
719 bool
720 default y
721
722 config GENERIC_HWEIGHT
723 bool
724 default y
725
726 config GENERIC_CALIBRATE_DELAY
727 bool
728 default y
729
730 config GENERIC_CLOCKEVENTS
731 bool
732 default y
733
734 config GENERIC_TIME
735 bool
736 default y
737
738 config GENERIC_CMOS_UPDATE
739 bool
740 default y
741
742 config SCHED_OMIT_FRAME_POINTER
743 bool
744 default y
745
746 config GENERIC_HARDIRQS_NO__DO_IRQ
747 def_bool y
748
749 #
750 # Select some configuration options automatically based on user selections.
751 #
752 config ARC
753 bool
754
755 config ARCH_MAY_HAVE_PC_FDC
756 bool
757
758 config BOOT_RAW
759 bool
760
761 config CEVT_BCM1480
762 bool
763
764 config CEVT_DS1287
765 bool
766
767 config CEVT_GT641XX
768 bool
769
770 config CEVT_R4K_LIB
771 bool
772
773 config CEVT_R4K
774 select CEVT_R4K_LIB
775 bool
776
777 config CEVT_SB1250
778 bool
779
780 config CEVT_TXX9
781 bool
782
783 config CSRC_BCM1480
784 bool
785
786 config CSRC_IOASIC
787 bool
788
789 config CSRC_POWERTV
790 bool
791
792 config CSRC_R4K_LIB
793 bool
794
795 config CSRC_R4K
796 select CSRC_R4K_LIB
797 bool
798
799 config CSRC_SB1250
800 bool
801
802 config GPIO_TXX9
803 select GENERIC_GPIO
804 select ARCH_REQUIRE_GPIOLIB
805 bool
806
807 config CFE
808 bool
809
810 config DMA_COHERENT
811 bool
812
813 config DMA_NONCOHERENT
814 bool
815 select NEED_DMA_MAP_STATE
816
817 config NEED_DMA_MAP_STATE
818 bool
819
820 config SYS_HAS_EARLY_PRINTK
821 bool
822
823 config HOTPLUG_CPU
824 bool "Support for hot-pluggable CPUs"
825 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
826 help
827 Say Y here to allow turning CPUs off and on. CPUs can be
828 controlled through /sys/devices/system/cpu.
829 (Note: power management support will enable this option
830 automatically on SMP systems. )
831 Say N if you want to disable CPU hotplug.
832
833 config SYS_SUPPORTS_HOTPLUG_CPU
834 bool
835
836 config I8259
837 bool
838
839 config MIPS_BONITO64
840 bool
841
842 config MIPS_MSC
843 bool
844
845 config MIPS_NILE4
846 bool
847
848 config MIPS_DISABLE_OBSOLETE_IDE
849 bool
850
851 config SYNC_R4K
852 bool
853
854 config NO_IOPORT
855 def_bool n
856
857 config GENERIC_ISA_DMA
858 bool
859 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
860
861 config GENERIC_ISA_DMA_SUPPORT_BROKEN
862 bool
863 select GENERIC_ISA_DMA
864
865 config GENERIC_GPIO
866 bool
867
868 #
869 # Endianess selection. Sufficiently obscure so many users don't know what to
870 # answer,so we try hard to limit the available choices. Also the use of a
871 # choice statement should be more obvious to the user.
872 #
873 choice
874 prompt "Endianess selection"
875 help
876 Some MIPS machines can be configured for either little or big endian
877 byte order. These modes require different kernels and a different
878 Linux distribution. In general there is one preferred byteorder for a
879 particular system but some systems are just as commonly used in the
880 one or the other endianness.
881
882 config CPU_BIG_ENDIAN
883 bool "Big endian"
884 depends on SYS_SUPPORTS_BIG_ENDIAN
885
886 config CPU_LITTLE_ENDIAN
887 bool "Little endian"
888 depends on SYS_SUPPORTS_LITTLE_ENDIAN
889 help
890
891 endchoice
892
893 config SYS_SUPPORTS_APM_EMULATION
894 bool
895
896 config SYS_SUPPORTS_BIG_ENDIAN
897 bool
898
899 config SYS_SUPPORTS_LITTLE_ENDIAN
900 bool
901
902 config SYS_SUPPORTS_HUGETLBFS
903 bool
904 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
905 default y
906
907 config IRQ_CPU
908 bool
909
910 config IRQ_CPU_RM7K
911 bool
912
913 config IRQ_CPU_RM9K
914 bool
915
916 config IRQ_MSP_SLP
917 bool
918
919 config IRQ_MSP_CIC
920 bool
921
922 config IRQ_TXX9
923 bool
924
925 config IRQ_GT641XX
926 bool
927
928 config IRQ_GIC
929 bool
930
931 config IRQ_CPU_OCTEON
932 bool
933
934 config MIPS_BOARDS_GEN
935 bool
936
937 config PCI_GT64XXX_PCI0
938 bool
939
940 config NO_EXCEPT_FILL
941 bool
942
943 config MIPS_RM9122
944 bool
945 select SERIAL_RM9000
946
947 config SOC_EMMA2RH
948 bool
949 select CEVT_R4K
950 select CSRC_R4K
951 select DMA_NONCOHERENT
952 select IRQ_CPU
953 select SWAP_IO_SPACE
954 select SYS_HAS_CPU_R5500
955 select SYS_SUPPORTS_32BIT_KERNEL
956 select SYS_SUPPORTS_64BIT_KERNEL
957 select SYS_SUPPORTS_BIG_ENDIAN
958
959 config SOC_PNX833X
960 bool
961 select CEVT_R4K
962 select CSRC_R4K
963 select IRQ_CPU
964 select DMA_NONCOHERENT
965 select SYS_HAS_CPU_MIPS32_R2
966 select SYS_SUPPORTS_32BIT_KERNEL
967 select SYS_SUPPORTS_LITTLE_ENDIAN
968 select SYS_SUPPORTS_BIG_ENDIAN
969 select GENERIC_GPIO
970 select CPU_MIPSR2_IRQ_VI
971
972 config SOC_PNX8335
973 bool
974 select SOC_PNX833X
975
976 config PNX8550
977 bool
978 select SOC_PNX8550
979
980 config SOC_PNX8550
981 bool
982 select DMA_NONCOHERENT
983 select HW_HAS_PCI
984 select SYS_HAS_CPU_MIPS32_R1
985 select SYS_HAS_EARLY_PRINTK
986 select SYS_SUPPORTS_32BIT_KERNEL
987 select GENERIC_GPIO
988
989 config SWAP_IO_SPACE
990 bool
991
992 config SERIAL_RM9000
993 bool
994
995 config SGI_HAS_INDYDOG
996 bool
997
998 config SGI_HAS_HAL2
999 bool
1000
1001 config SGI_HAS_SEEQ
1002 bool
1003
1004 config SGI_HAS_WD93
1005 bool
1006
1007 config SGI_HAS_ZILOG
1008 bool
1009
1010 config SGI_HAS_I8042
1011 bool
1012
1013 config DEFAULT_SGI_PARTITION
1014 bool
1015
1016 config ARC32
1017 bool
1018
1019 config SNIPROM
1020 bool
1021
1022 config BOOT_ELF32
1023 bool
1024
1025 config MIPS_L1_CACHE_SHIFT
1026 int
1027 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1028 default "6" if MIPS_CPU_SCACHE
1029 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1030 default "5"
1031
1032 config HAVE_STD_PC_SERIAL_PORT
1033 bool
1034
1035 config ARC_CONSOLE
1036 bool "ARC console support"
1037 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1038
1039 config ARC_MEMORY
1040 bool
1041 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1042 default y
1043
1044 config ARC_PROMLIB
1045 bool
1046 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1047 default y
1048
1049 config ARC64
1050 bool
1051
1052 config BOOT_ELF64
1053 bool
1054
1055 menu "CPU selection"
1056
1057 choice
1058 prompt "CPU type"
1059 default CPU_R4X00
1060
1061 config CPU_LOONGSON2E
1062 bool "Loongson 2E"
1063 depends on SYS_HAS_CPU_LOONGSON2E
1064 select CPU_LOONGSON2
1065 help
1066 The Loongson 2E processor implements the MIPS III instruction set
1067 with many extensions.
1068
1069 It has an internal FPGA northbridge, which is compatiable to
1070 bonito64.
1071
1072 config CPU_LOONGSON2F
1073 bool "Loongson 2F"
1074 depends on SYS_HAS_CPU_LOONGSON2F
1075 select CPU_LOONGSON2
1076 select GENERIC_GPIO
1077 select ARCH_REQUIRE_GPIOLIB
1078 help
1079 The Loongson 2F processor implements the MIPS III instruction set
1080 with many extensions.
1081
1082 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1083 have a similar programming interface with FPGA northbridge used in
1084 Loongson2E.
1085
1086 config CPU_MIPS32_R1
1087 bool "MIPS32 Release 1"
1088 depends on SYS_HAS_CPU_MIPS32_R1
1089 select CPU_HAS_PREFETCH
1090 select CPU_SUPPORTS_32BIT_KERNEL
1091 select CPU_SUPPORTS_HIGHMEM
1092 help
1093 Choose this option to build a kernel for release 1 or later of the
1094 MIPS32 architecture. Most modern embedded systems with a 32-bit
1095 MIPS processor are based on a MIPS32 processor. If you know the
1096 specific type of processor in your system, choose those that one
1097 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1098 Release 2 of the MIPS32 architecture is available since several
1099 years so chances are you even have a MIPS32 Release 2 processor
1100 in which case you should choose CPU_MIPS32_R2 instead for better
1101 performance.
1102
1103 config CPU_MIPS32_R2
1104 bool "MIPS32 Release 2"
1105 depends on SYS_HAS_CPU_MIPS32_R2
1106 select CPU_HAS_PREFETCH
1107 select CPU_SUPPORTS_32BIT_KERNEL
1108 select CPU_SUPPORTS_HIGHMEM
1109 help
1110 Choose this option to build a kernel for release 2 or later of the
1111 MIPS32 architecture. Most modern embedded systems with a 32-bit
1112 MIPS processor are based on a MIPS32 processor. If you know the
1113 specific type of processor in your system, choose those that one
1114 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1115
1116 config CPU_MIPS64_R1
1117 bool "MIPS64 Release 1"
1118 depends on SYS_HAS_CPU_MIPS64_R1
1119 select CPU_HAS_PREFETCH
1120 select CPU_SUPPORTS_32BIT_KERNEL
1121 select CPU_SUPPORTS_64BIT_KERNEL
1122 select CPU_SUPPORTS_HIGHMEM
1123 select CPU_SUPPORTS_HUGEPAGES
1124 help
1125 Choose this option to build a kernel for release 1 or later of the
1126 MIPS64 architecture. Many modern embedded systems with a 64-bit
1127 MIPS processor are based on a MIPS64 processor. If you know the
1128 specific type of processor in your system, choose those that one
1129 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1130 Release 2 of the MIPS64 architecture is available since several
1131 years so chances are you even have a MIPS64 Release 2 processor
1132 in which case you should choose CPU_MIPS64_R2 instead for better
1133 performance.
1134
1135 config CPU_MIPS64_R2
1136 bool "MIPS64 Release 2"
1137 depends on SYS_HAS_CPU_MIPS64_R2
1138 select CPU_HAS_PREFETCH
1139 select CPU_SUPPORTS_32BIT_KERNEL
1140 select CPU_SUPPORTS_64BIT_KERNEL
1141 select CPU_SUPPORTS_HIGHMEM
1142 select CPU_SUPPORTS_HUGEPAGES
1143 help
1144 Choose this option to build a kernel for release 2 or later of the
1145 MIPS64 architecture. Many modern embedded systems with a 64-bit
1146 MIPS processor are based on a MIPS64 processor. If you know the
1147 specific type of processor in your system, choose those that one
1148 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1149
1150 config CPU_R3000
1151 bool "R3000"
1152 depends on SYS_HAS_CPU_R3000
1153 select CPU_HAS_WB
1154 select CPU_SUPPORTS_32BIT_KERNEL
1155 select CPU_SUPPORTS_HIGHMEM
1156 help
1157 Please make sure to pick the right CPU type. Linux/MIPS is not
1158 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1159 *not* work on R4000 machines and vice versa. However, since most
1160 of the supported machines have an R4000 (or similar) CPU, R4x00
1161 might be a safe bet. If the resulting kernel does not work,
1162 try to recompile with R3000.
1163
1164 config CPU_TX39XX
1165 bool "R39XX"
1166 depends on SYS_HAS_CPU_TX39XX
1167 select CPU_SUPPORTS_32BIT_KERNEL
1168
1169 config CPU_VR41XX
1170 bool "R41xx"
1171 depends on SYS_HAS_CPU_VR41XX
1172 select CPU_SUPPORTS_32BIT_KERNEL
1173 select CPU_SUPPORTS_64BIT_KERNEL
1174 help
1175 The options selects support for the NEC VR4100 series of processors.
1176 Only choose this option if you have one of these processors as a
1177 kernel built with this option will not run on any other type of
1178 processor or vice versa.
1179
1180 config CPU_R4300
1181 bool "R4300"
1182 depends on SYS_HAS_CPU_R4300
1183 select CPU_SUPPORTS_32BIT_KERNEL
1184 select CPU_SUPPORTS_64BIT_KERNEL
1185 help
1186 MIPS Technologies R4300-series processors.
1187
1188 config CPU_R4X00
1189 bool "R4x00"
1190 depends on SYS_HAS_CPU_R4X00
1191 select CPU_SUPPORTS_32BIT_KERNEL
1192 select CPU_SUPPORTS_64BIT_KERNEL
1193 help
1194 MIPS Technologies R4000-series processors other than 4300, including
1195 the R4000, R4400, R4600, and 4700.
1196
1197 config CPU_TX49XX
1198 bool "R49XX"
1199 depends on SYS_HAS_CPU_TX49XX
1200 select CPU_HAS_PREFETCH
1201 select CPU_SUPPORTS_32BIT_KERNEL
1202 select CPU_SUPPORTS_64BIT_KERNEL
1203
1204 config CPU_R5000
1205 bool "R5000"
1206 depends on SYS_HAS_CPU_R5000
1207 select CPU_SUPPORTS_32BIT_KERNEL
1208 select CPU_SUPPORTS_64BIT_KERNEL
1209 help
1210 MIPS Technologies R5000-series processors other than the Nevada.
1211
1212 config CPU_R5432
1213 bool "R5432"
1214 depends on SYS_HAS_CPU_R5432
1215 select CPU_SUPPORTS_32BIT_KERNEL
1216 select CPU_SUPPORTS_64BIT_KERNEL
1217
1218 config CPU_R5500
1219 bool "R5500"
1220 depends on SYS_HAS_CPU_R5500
1221 select CPU_SUPPORTS_32BIT_KERNEL
1222 select CPU_SUPPORTS_64BIT_KERNEL
1223 select CPU_SUPPORTS_HUGEPAGES
1224 help
1225 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1226 instruction set.
1227
1228 config CPU_R6000
1229 bool "R6000"
1230 depends on EXPERIMENTAL
1231 depends on SYS_HAS_CPU_R6000
1232 select CPU_SUPPORTS_32BIT_KERNEL
1233 help
1234 MIPS Technologies R6000 and R6000A series processors. Note these
1235 processors are extremely rare and the support for them is incomplete.
1236
1237 config CPU_NEVADA
1238 bool "RM52xx"
1239 depends on SYS_HAS_CPU_NEVADA
1240 select CPU_SUPPORTS_32BIT_KERNEL
1241 select CPU_SUPPORTS_64BIT_KERNEL
1242 help
1243 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1244
1245 config CPU_R8000
1246 bool "R8000"
1247 depends on EXPERIMENTAL
1248 depends on SYS_HAS_CPU_R8000
1249 select CPU_HAS_PREFETCH
1250 select CPU_SUPPORTS_64BIT_KERNEL
1251 help
1252 MIPS Technologies R8000 processors. Note these processors are
1253 uncommon and the support for them is incomplete.
1254
1255 config CPU_R10000
1256 bool "R10000"
1257 depends on SYS_HAS_CPU_R10000
1258 select CPU_HAS_PREFETCH
1259 select CPU_SUPPORTS_32BIT_KERNEL
1260 select CPU_SUPPORTS_64BIT_KERNEL
1261 select CPU_SUPPORTS_HIGHMEM
1262 help
1263 MIPS Technologies R10000-series processors.
1264
1265 config CPU_RM7000
1266 bool "RM7000"
1267 depends on SYS_HAS_CPU_RM7000
1268 select CPU_HAS_PREFETCH
1269 select CPU_SUPPORTS_32BIT_KERNEL
1270 select CPU_SUPPORTS_64BIT_KERNEL
1271 select CPU_SUPPORTS_HIGHMEM
1272
1273 config CPU_RM9000
1274 bool "RM9000"
1275 depends on SYS_HAS_CPU_RM9000
1276 select CPU_HAS_PREFETCH
1277 select CPU_SUPPORTS_32BIT_KERNEL
1278 select CPU_SUPPORTS_64BIT_KERNEL
1279 select CPU_SUPPORTS_HIGHMEM
1280 select WEAK_ORDERING
1281
1282 config CPU_SB1
1283 bool "SB1"
1284 depends on SYS_HAS_CPU_SB1
1285 select CPU_SUPPORTS_32BIT_KERNEL
1286 select CPU_SUPPORTS_64BIT_KERNEL
1287 select CPU_SUPPORTS_HIGHMEM
1288 select WEAK_ORDERING
1289
1290 config CPU_CAVIUM_OCTEON
1291 bool "Cavium Octeon processor"
1292 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1293 select IRQ_CPU
1294 select IRQ_CPU_OCTEON
1295 select CPU_HAS_PREFETCH
1296 select CPU_SUPPORTS_64BIT_KERNEL
1297 select SYS_SUPPORTS_SMP
1298 select NR_CPUS_DEFAULT_16
1299 select WEAK_ORDERING
1300 select CPU_SUPPORTS_HIGHMEM
1301 select CPU_SUPPORTS_HUGEPAGES
1302 help
1303 The Cavium Octeon processor is a highly integrated chip containing
1304 many ethernet hardware widgets for networking tasks. The processor
1305 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1306 Full details can be found at http://www.caviumnetworks.com.
1307
1308 endchoice
1309
1310 if CPU_LOONGSON2F
1311 config CPU_NOP_WORKAROUNDS
1312 bool
1313
1314 config CPU_JUMP_WORKAROUNDS
1315 bool
1316
1317 config CPU_LOONGSON2F_WORKAROUNDS
1318 bool "Loongson 2F Workarounds"
1319 default y
1320 select CPU_NOP_WORKAROUNDS
1321 select CPU_JUMP_WORKAROUNDS
1322 help
1323 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1324 require workarounds. Without workarounds the system may hang
1325 unexpectedly. For more information please refer to the gas
1326 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1327
1328 Loongson 2F03 and later have fixed these issues and no workarounds
1329 are needed. The workarounds have no significant side effect on them
1330 but may decrease the performance of the system so this option should
1331 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1332 systems.
1333
1334 If unsure, please say Y.
1335 endif # CPU_LOONGSON2F
1336
1337 config SYS_SUPPORTS_ZBOOT
1338 bool
1339 select HAVE_KERNEL_GZIP
1340 select HAVE_KERNEL_BZIP2
1341 select HAVE_KERNEL_LZMA
1342 select HAVE_KERNEL_LZO
1343
1344 config SYS_SUPPORTS_ZBOOT_UART16550
1345 bool
1346 select SYS_SUPPORTS_ZBOOT
1347
1348 config CPU_LOONGSON2
1349 bool
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1352 select CPU_SUPPORTS_HIGHMEM
1353
1354 config SYS_HAS_CPU_LOONGSON2E
1355 bool
1356
1357 config SYS_HAS_CPU_LOONGSON2F
1358 bool
1359 select CPU_SUPPORTS_CPUFREQ
1360 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1361 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1362
1363 config SYS_HAS_CPU_MIPS32_R1
1364 bool
1365
1366 config SYS_HAS_CPU_MIPS32_R2
1367 bool
1368
1369 config SYS_HAS_CPU_MIPS64_R1
1370 bool
1371
1372 config SYS_HAS_CPU_MIPS64_R2
1373 bool
1374
1375 config SYS_HAS_CPU_R3000
1376 bool
1377
1378 config SYS_HAS_CPU_TX39XX
1379 bool
1380
1381 config SYS_HAS_CPU_VR41XX
1382 bool
1383
1384 config SYS_HAS_CPU_R4300
1385 bool
1386
1387 config SYS_HAS_CPU_R4X00
1388 bool
1389
1390 config SYS_HAS_CPU_TX49XX
1391 bool
1392
1393 config SYS_HAS_CPU_R5000
1394 bool
1395
1396 config SYS_HAS_CPU_R5432
1397 bool
1398
1399 config SYS_HAS_CPU_R5500
1400 bool
1401
1402 config SYS_HAS_CPU_R6000
1403 bool
1404
1405 config SYS_HAS_CPU_NEVADA
1406 bool
1407
1408 config SYS_HAS_CPU_R8000
1409 bool
1410
1411 config SYS_HAS_CPU_R10000
1412 bool
1413
1414 config SYS_HAS_CPU_RM7000
1415 bool
1416
1417 config SYS_HAS_CPU_RM9000
1418 bool
1419
1420 config SYS_HAS_CPU_SB1
1421 bool
1422
1423 config SYS_HAS_CPU_CAVIUM_OCTEON
1424 bool
1425
1426 #
1427 # CPU may reorder R->R, R->W, W->R, W->W
1428 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1429 #
1430 config WEAK_ORDERING
1431 bool
1432
1433 #
1434 # CPU may reorder reads and writes beyond LL/SC
1435 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1436 #
1437 config WEAK_REORDERING_BEYOND_LLSC
1438 bool
1439 endmenu
1440
1441 #
1442 # These two indicate any level of the MIPS32 and MIPS64 architecture
1443 #
1444 config CPU_MIPS32
1445 bool
1446 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1447
1448 config CPU_MIPS64
1449 bool
1450 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1451
1452 #
1453 # These two indicate the revision of the architecture, either Release 1 or Release 2
1454 #
1455 config CPU_MIPSR1
1456 bool
1457 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1458
1459 config CPU_MIPSR2
1460 bool
1461 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1462
1463 config SYS_SUPPORTS_32BIT_KERNEL
1464 bool
1465 config SYS_SUPPORTS_64BIT_KERNEL
1466 bool
1467 config CPU_SUPPORTS_32BIT_KERNEL
1468 bool
1469 config CPU_SUPPORTS_64BIT_KERNEL
1470 bool
1471 config CPU_SUPPORTS_CPUFREQ
1472 bool
1473 config CPU_SUPPORTS_ADDRWINCFG
1474 bool
1475 config CPU_SUPPORTS_HUGEPAGES
1476 bool
1477 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1478 bool
1479 config MIPS_PGD_C0_CONTEXT
1480 bool
1481 default y if 64BIT && CPU_MIPSR2
1482
1483 #
1484 # Set to y for ptrace access to watch registers.
1485 #
1486 config HARDWARE_WATCHPOINTS
1487 bool
1488 default y if CPU_MIPSR1 || CPU_MIPSR2
1489
1490 menu "Kernel type"
1491
1492 choice
1493
1494 prompt "Kernel code model"
1495 help
1496 You should only select this option if you have a workload that
1497 actually benefits from 64-bit processing or if your machine has
1498 large memory. You will only be presented a single option in this
1499 menu if your system does not support both 32-bit and 64-bit kernels.
1500
1501 config 32BIT
1502 bool "32-bit kernel"
1503 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1504 select TRAD_SIGNALS
1505 help
1506 Select this option if you want to build a 32-bit kernel.
1507 config 64BIT
1508 bool "64-bit kernel"
1509 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1510 select HAVE_SYSCALL_WRAPPERS
1511 help
1512 Select this option if you want to build a 64-bit kernel.
1513
1514 endchoice
1515
1516 choice
1517 prompt "Kernel page size"
1518 default PAGE_SIZE_4KB
1519
1520 config PAGE_SIZE_4KB
1521 bool "4kB"
1522 depends on !CPU_LOONGSON2
1523 help
1524 This option select the standard 4kB Linux page size. On some
1525 R3000-family processors this is the only available page size. Using
1526 4kB page size will minimize memory consumption and is therefore
1527 recommended for low memory systems.
1528
1529 config PAGE_SIZE_8KB
1530 bool "8kB"
1531 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1532 help
1533 Using 8kB page size will result in higher performance kernel at
1534 the price of higher memory consumption. This option is available
1535 only on R8000 and cnMIPS processors. Note that you will need a
1536 suitable Linux distribution to support this.
1537
1538 config PAGE_SIZE_16KB
1539 bool "16kB"
1540 depends on !CPU_R3000 && !CPU_TX39XX
1541 help
1542 Using 16kB page size will result in higher performance kernel at
1543 the price of higher memory consumption. This option is available on
1544 all non-R3000 family processors. Note that you will need a suitable
1545 Linux distribution to support this.
1546
1547 config PAGE_SIZE_32KB
1548 bool "32kB"
1549 depends on CPU_CAVIUM_OCTEON
1550 help
1551 Using 32kB page size will result in higher performance kernel at
1552 the price of higher memory consumption. This option is available
1553 only on cnMIPS cores. Note that you will need a suitable Linux
1554 distribution to support this.
1555
1556 config PAGE_SIZE_64KB
1557 bool "64kB"
1558 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1559 help
1560 Using 64kB page size will result in higher performance kernel at
1561 the price of higher memory consumption. This option is available on
1562 all non-R3000 family processor. Not that at the time of this
1563 writing this option is still high experimental.
1564
1565 endchoice
1566
1567 config BOARD_SCACHE
1568 bool
1569
1570 config IP22_CPU_SCACHE
1571 bool
1572 select BOARD_SCACHE
1573
1574 #
1575 # Support for a MIPS32 / MIPS64 style S-caches
1576 #
1577 config MIPS_CPU_SCACHE
1578 bool
1579 select BOARD_SCACHE
1580
1581 config R5000_CPU_SCACHE
1582 bool
1583 select BOARD_SCACHE
1584
1585 config RM7000_CPU_SCACHE
1586 bool
1587 select BOARD_SCACHE
1588
1589 config SIBYTE_DMA_PAGEOPS
1590 bool "Use DMA to clear/copy pages"
1591 depends on CPU_SB1
1592 help
1593 Instead of using the CPU to zero and copy pages, use a Data Mover
1594 channel. These DMA channels are otherwise unused by the standard
1595 SiByte Linux port. Seems to give a small performance benefit.
1596
1597 config CPU_HAS_PREFETCH
1598 bool
1599
1600 choice
1601 prompt "MIPS MT options"
1602
1603 config MIPS_MT_DISABLED
1604 bool "Disable multithreading support."
1605 help
1606 Use this option if your workload can't take advantage of
1607 MIPS hardware multithreading support. On systems that don't have
1608 the option of an MT-enabled processor this option will be the only
1609 option in this menu.
1610
1611 config MIPS_MT_SMP
1612 bool "Use 1 TC on each available VPE for SMP"
1613 depends on SYS_SUPPORTS_MULTITHREADING
1614 select CPU_MIPSR2_IRQ_VI
1615 select CPU_MIPSR2_IRQ_EI
1616 select MIPS_MT
1617 select NR_CPUS_DEFAULT_2
1618 select SMP
1619 select SYS_SUPPORTS_SCHED_SMT if SMP
1620 select SYS_SUPPORTS_SMP
1621 select SMP_UP
1622 help
1623 This is a kernel model which is also known a VSMP or lately
1624 has been marketesed into SMVP.
1625
1626 config MIPS_MT_SMTC
1627 bool "SMTC: Use all TCs on all VPEs for SMP"
1628 depends on CPU_MIPS32_R2
1629 #depends on CPU_MIPS64_R2 # once there is hardware ...
1630 depends on SYS_SUPPORTS_MULTITHREADING
1631 select CPU_MIPSR2_IRQ_VI
1632 select CPU_MIPSR2_IRQ_EI
1633 select MIPS_MT
1634 select NR_CPUS_DEFAULT_8
1635 select SMP
1636 select SYS_SUPPORTS_SMP
1637 select SMP_UP
1638 help
1639 This is a kernel model which is known a SMTC or lately has been
1640 marketesed into SMVP.
1641
1642 endchoice
1643
1644 config MIPS_MT
1645 bool
1646
1647 config SCHED_SMT
1648 bool "SMT (multithreading) scheduler support"
1649 depends on SYS_SUPPORTS_SCHED_SMT
1650 default n
1651 help
1652 SMT scheduler support improves the CPU scheduler's decision making
1653 when dealing with MIPS MT enabled cores at a cost of slightly
1654 increased overhead in some places. If unsure say N here.
1655
1656 config SYS_SUPPORTS_SCHED_SMT
1657 bool
1658
1659
1660 config SYS_SUPPORTS_MULTITHREADING
1661 bool
1662
1663 config MIPS_MT_FPAFF
1664 bool "Dynamic FPU affinity for FP-intensive threads"
1665 default y
1666 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1667
1668 config MIPS_VPE_LOADER
1669 bool "VPE loader support."
1670 depends on SYS_SUPPORTS_MULTITHREADING
1671 select CPU_MIPSR2_IRQ_VI
1672 select CPU_MIPSR2_IRQ_EI
1673 select MIPS_MT
1674 help
1675 Includes a loader for loading an elf relocatable object
1676 onto another VPE and running it.
1677
1678 config MIPS_MT_SMTC_IM_BACKSTOP
1679 bool "Use per-TC register bits as backstop for inhibited IM bits"
1680 depends on MIPS_MT_SMTC
1681 default n
1682 help
1683 To support multiple TC microthreads acting as "CPUs" within
1684 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1685 during interrupt handling. To support legacy drivers and interrupt
1686 controller management code, SMTC has a "backstop" to track and
1687 if necessary restore the interrupt mask. This has some performance
1688 impact on interrupt service overhead.
1689
1690 config MIPS_MT_SMTC_IRQAFF
1691 bool "Support IRQ affinity API"
1692 depends on MIPS_MT_SMTC
1693 default n
1694 help
1695 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1696 for SMTC Linux kernel. Requires platform support, of which
1697 an example can be found in the MIPS kernel i8259 and Malta
1698 platform code. Adds some overhead to interrupt dispatch, and
1699 should be used only if you know what you are doing.
1700
1701 config MIPS_VPE_LOADER_TOM
1702 bool "Load VPE program into memory hidden from linux"
1703 depends on MIPS_VPE_LOADER
1704 default y
1705 help
1706 The loader can use memory that is present but has been hidden from
1707 Linux using the kernel command line option "mem=xxMB". It's up to
1708 you to ensure the amount you put in the option and the space your
1709 program requires is less or equal to the amount physically present.
1710
1711 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1712 config MIPS_VPE_APSP_API
1713 bool "Enable support for AP/SP API (RTLX)"
1714 depends on MIPS_VPE_LOADER
1715 help
1716
1717 config MIPS_APSP_KSPD
1718 bool "Enable KSPD"
1719 depends on MIPS_VPE_APSP_API
1720 default y
1721 help
1722 KSPD is a kernel daemon that accepts syscall requests from the SP
1723 side, actions them and returns the results. It also handles the
1724 "exit" syscall notifying other kernel modules the SP program is
1725 exiting. You probably want to say yes here.
1726
1727 config MIPS_CMP
1728 bool "MIPS CMP framework support"
1729 depends on SYS_SUPPORTS_MIPS_CMP
1730 select SYNC_R4K
1731 select SYS_SUPPORTS_SMP
1732 select SYS_SUPPORTS_SCHED_SMT if SMP
1733 select WEAK_ORDERING
1734 default n
1735 help
1736 This is a placeholder option for the GCMP work. It will need to
1737 be handled differently...
1738
1739 config SB1_PASS_1_WORKAROUNDS
1740 bool
1741 depends on CPU_SB1_PASS_1
1742 default y
1743
1744 config SB1_PASS_2_WORKAROUNDS
1745 bool
1746 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1747 default y
1748
1749 config SB1_PASS_2_1_WORKAROUNDS
1750 bool
1751 depends on CPU_SB1 && CPU_SB1_PASS_2
1752 default y
1753
1754 config 64BIT_PHYS_ADDR
1755 bool
1756
1757 config ARCH_PHYS_ADDR_T_64BIT
1758 def_bool 64BIT_PHYS_ADDR
1759
1760 config CPU_HAS_SMARTMIPS
1761 depends on SYS_SUPPORTS_SMARTMIPS
1762 bool "Support for the SmartMIPS ASE"
1763 help
1764 SmartMIPS is a extension of the MIPS32 architecture aimed at
1765 increased security at both hardware and software level for
1766 smartcards. Enabling this option will allow proper use of the
1767 SmartMIPS instructions by Linux applications. However a kernel with
1768 this option will not work on a MIPS core without SmartMIPS core. If
1769 you don't know you probably don't have SmartMIPS and should say N
1770 here.
1771
1772 config CPU_HAS_WB
1773 bool
1774
1775 #
1776 # Vectored interrupt mode is an R2 feature
1777 #
1778 config CPU_MIPSR2_IRQ_VI
1779 bool
1780
1781 #
1782 # Extended interrupt mode is an R2 feature
1783 #
1784 config CPU_MIPSR2_IRQ_EI
1785 bool
1786
1787 config CPU_HAS_SYNC
1788 bool
1789 depends on !CPU_R3000
1790 default y
1791
1792 config GENERIC_CLOCKEVENTS_BROADCAST
1793 bool
1794
1795 #
1796 # CPU non-features
1797 #
1798 config CPU_DADDI_WORKAROUNDS
1799 bool
1800
1801 config CPU_R4000_WORKAROUNDS
1802 bool
1803 select CPU_R4400_WORKAROUNDS
1804
1805 config CPU_R4400_WORKAROUNDS
1806 bool
1807
1808 #
1809 # Use the generic interrupt handling code in kernel/irq/:
1810 #
1811 config GENERIC_HARDIRQS
1812 bool
1813 default y
1814
1815 config GENERIC_IRQ_PROBE
1816 bool
1817 default y
1818
1819 config IRQ_PER_CPU
1820 bool
1821
1822 #
1823 # - Highmem only makes sense for the 32-bit kernel.
1824 # - The current highmem code will only work properly on physically indexed
1825 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1826 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1827 # moment we protect the user and offer the highmem option only on machines
1828 # where it's known to be safe. This will not offer highmem on a few systems
1829 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1830 # indexed CPUs but we're playing safe.
1831 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1832 # know they might have memory configurations that could make use of highmem
1833 # support.
1834 #
1835 config HIGHMEM
1836 bool "High Memory Support"
1837 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1838
1839 config CPU_SUPPORTS_HIGHMEM
1840 bool
1841
1842 config SYS_SUPPORTS_HIGHMEM
1843 bool
1844
1845 config SYS_SUPPORTS_SMARTMIPS
1846 bool
1847
1848 config ARCH_FLATMEM_ENABLE
1849 def_bool y
1850 depends on !NUMA && !CPU_LOONGSON2
1851
1852 config ARCH_DISCONTIGMEM_ENABLE
1853 bool
1854 default y if SGI_IP27
1855 help
1856 Say Y to support efficient handling of discontiguous physical memory,
1857 for architectures which are either NUMA (Non-Uniform Memory Access)
1858 or have huge holes in the physical address space for other reasons.
1859 See <file:Documentation/vm/numa> for more.
1860
1861 config ARCH_POPULATES_NODE_MAP
1862 def_bool y
1863
1864 config ARCH_SPARSEMEM_ENABLE
1865 bool
1866 select SPARSEMEM_STATIC
1867
1868 config NUMA
1869 bool "NUMA Support"
1870 depends on SYS_SUPPORTS_NUMA
1871 help
1872 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1873 Access). This option improves performance on systems with more
1874 than two nodes; on two node systems it is generally better to
1875 leave it disabled; on single node systems disable this option
1876 disabled.
1877
1878 config SYS_SUPPORTS_NUMA
1879 bool
1880
1881 config NODES_SHIFT
1882 int
1883 default "6"
1884 depends on NEED_MULTIPLE_NODES
1885
1886 source "mm/Kconfig"
1887
1888 config SMP
1889 bool "Multi-Processing support"
1890 depends on SYS_SUPPORTS_SMP
1891 select IRQ_PER_CPU
1892 select USE_GENERIC_SMP_HELPERS
1893 help
1894 This enables support for systems with more than one CPU. If you have
1895 a system with only one CPU, like most personal computers, say N. If
1896 you have a system with more than one CPU, say Y.
1897
1898 If you say N here, the kernel will run on single and multiprocessor
1899 machines, but will use only one CPU of a multiprocessor machine. If
1900 you say Y here, the kernel will run on many, but not all,
1901 singleprocessor machines. On a singleprocessor machine, the kernel
1902 will run faster if you say N here.
1903
1904 People using multiprocessor machines who say Y here should also say
1905 Y to "Enhanced Real Time Clock Support", below.
1906
1907 See also the SMP-HOWTO available at
1908 <http://www.tldp.org/docs.html#howto>.
1909
1910 If you don't know what to do here, say N.
1911
1912 config SMP_UP
1913 bool
1914
1915 config SYS_SUPPORTS_MIPS_CMP
1916 bool
1917
1918 config SYS_SUPPORTS_SMP
1919 bool
1920
1921 config NR_CPUS_DEFAULT_1
1922 bool
1923
1924 config NR_CPUS_DEFAULT_2
1925 bool
1926
1927 config NR_CPUS_DEFAULT_4
1928 bool
1929
1930 config NR_CPUS_DEFAULT_8
1931 bool
1932
1933 config NR_CPUS_DEFAULT_16
1934 bool
1935
1936 config NR_CPUS_DEFAULT_32
1937 bool
1938
1939 config NR_CPUS_DEFAULT_64
1940 bool
1941
1942 config NR_CPUS
1943 int "Maximum number of CPUs (2-64)"
1944 range 1 64 if NR_CPUS_DEFAULT_1
1945 depends on SMP
1946 default "1" if NR_CPUS_DEFAULT_1
1947 default "2" if NR_CPUS_DEFAULT_2
1948 default "4" if NR_CPUS_DEFAULT_4
1949 default "8" if NR_CPUS_DEFAULT_8
1950 default "16" if NR_CPUS_DEFAULT_16
1951 default "32" if NR_CPUS_DEFAULT_32
1952 default "64" if NR_CPUS_DEFAULT_64
1953 help
1954 This allows you to specify the maximum number of CPUs which this
1955 kernel will support. The maximum supported value is 32 for 32-bit
1956 kernel and 64 for 64-bit kernels; the minimum value which makes
1957 sense is 1 for Qemu (useful only for kernel debugging purposes)
1958 and 2 for all others.
1959
1960 This is purely to save memory - each supported CPU adds
1961 approximately eight kilobytes to the kernel image. For best
1962 performance should round up your number of processors to the next
1963 power of two.
1964
1965 source "kernel/time/Kconfig"
1966
1967 #
1968 # Timer Interrupt Frequency Configuration
1969 #
1970
1971 choice
1972 prompt "Timer frequency"
1973 default HZ_250
1974 help
1975 Allows the configuration of the timer frequency.
1976
1977 config HZ_48
1978 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1979
1980 config HZ_100
1981 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1982
1983 config HZ_128
1984 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1985
1986 config HZ_250
1987 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1988
1989 config HZ_256
1990 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1991
1992 config HZ_1000
1993 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1994
1995 config HZ_1024
1996 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1997
1998 endchoice
1999
2000 config SYS_SUPPORTS_48HZ
2001 bool
2002
2003 config SYS_SUPPORTS_100HZ
2004 bool
2005
2006 config SYS_SUPPORTS_128HZ
2007 bool
2008
2009 config SYS_SUPPORTS_250HZ
2010 bool
2011
2012 config SYS_SUPPORTS_256HZ
2013 bool
2014
2015 config SYS_SUPPORTS_1000HZ
2016 bool
2017
2018 config SYS_SUPPORTS_1024HZ
2019 bool
2020
2021 config SYS_SUPPORTS_ARBIT_HZ
2022 bool
2023 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2024 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2025 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2026 !SYS_SUPPORTS_1024HZ
2027
2028 config HZ
2029 int
2030 default 48 if HZ_48
2031 default 100 if HZ_100
2032 default 128 if HZ_128
2033 default 250 if HZ_250
2034 default 256 if HZ_256
2035 default 1000 if HZ_1000
2036 default 1024 if HZ_1024
2037
2038 source "kernel/Kconfig.preempt"
2039
2040 config MIPS_INSANE_LARGE
2041 bool "Support for large 64-bit configurations"
2042 depends on CPU_R10000 && 64BIT
2043 help
2044 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2045 previous 64-bit processors which only supported 40 bit / 1TB. If you
2046 need processes of more than 1TB virtual address space, say Y here.
2047 This will result in additional memory usage, so it is not
2048 recommended for normal users.
2049
2050 config KEXEC
2051 bool "Kexec system call (EXPERIMENTAL)"
2052 depends on EXPERIMENTAL
2053 help
2054 kexec is a system call that implements the ability to shutdown your
2055 current kernel, and to start another kernel. It is like a reboot
2056 but it is independent of the system firmware. And like a reboot
2057 you can start any kernel with it, not just Linux.
2058
2059 The name comes from the similarity to the exec system call.
2060
2061 It is an ongoing process to be certain the hardware in a machine
2062 is properly shutdown, so do not be surprised if this code does not
2063 initially work for you. It may help to enable device hotplugging
2064 support. As of this writing the exact hardware interface is
2065 strongly in flux, so no good recommendation can be made.
2066
2067 config SECCOMP
2068 bool "Enable seccomp to safely compute untrusted bytecode"
2069 depends on PROC_FS
2070 default y
2071 help
2072 This kernel feature is useful for number crunching applications
2073 that may need to compute untrusted bytecode during their
2074 execution. By using pipes or other transports made available to
2075 the process as file descriptors supporting the read/write
2076 syscalls, it's possible to isolate those applications in
2077 their own address space using seccomp. Once seccomp is
2078 enabled via /proc/<pid>/seccomp, it cannot be disabled
2079 and the task is only allowed to execute a few safe syscalls
2080 defined by each seccomp mode.
2081
2082 If unsure, say Y. Only embedded should say N here.
2083
2084 endmenu
2085
2086 config LOCKDEP_SUPPORT
2087 bool
2088 default y
2089
2090 config STACKTRACE_SUPPORT
2091 bool
2092 default y
2093
2094 source "init/Kconfig"
2095
2096 source "kernel/Kconfig.freezer"
2097
2098 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2099
2100 config HW_HAS_EISA
2101 bool
2102 config HW_HAS_PCI
2103 bool
2104
2105 config PCI
2106 bool "Support for PCI controller"
2107 depends on HW_HAS_PCI
2108 select PCI_DOMAINS
2109 help
2110 Find out whether you have a PCI motherboard. PCI is the name of a
2111 bus system, i.e. the way the CPU talks to the other stuff inside
2112 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2113 say Y, otherwise N.
2114
2115 config PCI_DOMAINS
2116 bool
2117
2118 source "drivers/pci/Kconfig"
2119
2120 #
2121 # ISA support is now enabled via select. Too many systems still have the one
2122 # or other ISA chip on the board that users don't know about so don't expect
2123 # users to choose the right thing ...
2124 #
2125 config ISA
2126 bool
2127
2128 config EISA
2129 bool "EISA support"
2130 depends on HW_HAS_EISA
2131 select ISA
2132 select GENERIC_ISA_DMA
2133 ---help---
2134 The Extended Industry Standard Architecture (EISA) bus was
2135 developed as an open alternative to the IBM MicroChannel bus.
2136
2137 The EISA bus provided some of the features of the IBM MicroChannel
2138 bus while maintaining backward compatibility with cards made for
2139 the older ISA bus. The EISA bus saw limited use between 1988 and
2140 1995 when it was made obsolete by the PCI bus.
2141
2142 Say Y here if you are building a kernel for an EISA-based machine.
2143
2144 Otherwise, say N.
2145
2146 source "drivers/eisa/Kconfig"
2147
2148 config TC
2149 bool "TURBOchannel support"
2150 depends on MACH_DECSTATION
2151 help
2152 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2153 processors. Documentation on writing device drivers for TurboChannel
2154 is available at:
2155 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2156
2157 #config ACCESSBUS
2158 # bool "Access.Bus support"
2159 # depends on TC
2160
2161 config MMU
2162 bool
2163 default y
2164
2165 config I8253
2166 bool
2167 select MIPS_EXTERNAL_TIMER
2168
2169 config ZONE_DMA32
2170 bool
2171
2172 source "drivers/pcmcia/Kconfig"
2173
2174 source "drivers/pci/hotplug/Kconfig"
2175
2176 endmenu
2177
2178 menu "Executable file formats"
2179
2180 source "fs/Kconfig.binfmt"
2181
2182 config TRAD_SIGNALS
2183 bool
2184
2185 config MIPS32_COMPAT
2186 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2187 depends on 64BIT
2188 help
2189 Select this option if you want Linux/MIPS 32-bit binary
2190 compatibility. Since all software available for Linux/MIPS is
2191 currently 32-bit you should say Y here.
2192
2193 config COMPAT
2194 bool
2195 depends on MIPS32_COMPAT
2196 default y
2197
2198 config SYSVIPC_COMPAT
2199 bool
2200 depends on COMPAT && SYSVIPC
2201 default y
2202
2203 config MIPS32_O32
2204 bool "Kernel support for o32 binaries"
2205 depends on MIPS32_COMPAT
2206 help
2207 Select this option if you want to run o32 binaries. These are pure
2208 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2209 existing binaries are in this format.
2210
2211 If unsure, say Y.
2212
2213 config MIPS32_N32
2214 bool "Kernel support for n32 binaries"
2215 depends on MIPS32_COMPAT
2216 help
2217 Select this option if you want to run n32 binaries. These are
2218 64-bit binaries using 32-bit quantities for addressing and certain
2219 data that would normally be 64-bit. They are used in special
2220 cases.
2221
2222 If unsure, say N.
2223
2224 config BINFMT_ELF32
2225 bool
2226 default y if MIPS32_O32 || MIPS32_N32
2227
2228 endmenu
2229
2230 menu "Power management options"
2231
2232 config ARCH_HIBERNATION_POSSIBLE
2233 def_bool y
2234 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2235
2236 config ARCH_SUSPEND_POSSIBLE
2237 def_bool y
2238 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2239
2240 source "kernel/power/Kconfig"
2241
2242 endmenu
2243
2244 source "arch/mips/kernel/cpufreq/Kconfig"
2245
2246 source "net/Kconfig"
2247
2248 source "drivers/Kconfig"
2249
2250 source "fs/Kconfig"
2251
2252 source "arch/mips/Kconfig.debug"
2253
2254 source "security/Kconfig"
2255
2256 source "crypto/Kconfig"
2257
2258 source "lib/Kconfig"