]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - arch/mips/Kconfig
Fix common misspellings
[mirror_ubuntu-bionic-kernel.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_IRQ_WORK
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
10 select HAVE_ARCH_KGDB
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
17 select HAVE_KPROBES
18 select HAVE_KRETPROBES
19 select RTC_LIB if !MACH_LOONGSON
20 select GENERIC_ATOMIC64 if !64BIT
21 select HAVE_DMA_ATTRS
22 select HAVE_DMA_API_DEBUG
23 select HAVE_GENERIC_HARDIRQS
24 select GENERIC_IRQ_PROBE
25 select GENERIC_IRQ_SHOW
26 select HAVE_ARCH_JUMP_LABEL
27
28 menu "Machine selection"
29
30 config ZONE_DMA
31 bool
32
33 choice
34 prompt "System type"
35 default SGI_IP22
36
37 config MIPS_ALCHEMY
38 bool "Alchemy processor based machines"
39 select 64BIT_PHYS_ADDR
40 select CEVT_R4K_LIB
41 select CSRC_R4K_LIB
42 select IRQ_CPU
43 select SYS_HAS_CPU_MIPS32_R1
44 select SYS_SUPPORTS_32BIT_KERNEL
45 select SYS_SUPPORTS_APM_EMULATION
46 select GENERIC_GPIO
47 select ARCH_WANT_OPTIONAL_GPIOLIB
48 select SYS_SUPPORTS_ZBOOT
49
50 config AR7
51 bool "Texas Instruments AR7"
52 select BOOT_ELF32
53 select DMA_NONCOHERENT
54 select CEVT_R4K
55 select CSRC_R4K
56 select IRQ_CPU
57 select NO_EXCEPT_FILL
58 select SWAP_IO_SPACE
59 select SYS_HAS_CPU_MIPS32_R1
60 select SYS_HAS_EARLY_PRINTK
61 select SYS_SUPPORTS_32BIT_KERNEL
62 select SYS_SUPPORTS_LITTLE_ENDIAN
63 select SYS_SUPPORTS_ZBOOT_UART16550
64 select ARCH_REQUIRE_GPIOLIB
65 select GCD
66 select VLYNQ
67 help
68 Support for the Texas Instruments AR7 System-on-a-Chip
69 family: TNETD7100, 7200 and 7300.
70
71 config ATH79
72 bool "Atheros AR71XX/AR724X/AR913X based boards"
73 select ARCH_REQUIRE_GPIOLIB
74 select BOOT_RAW
75 select CEVT_R4K
76 select CSRC_R4K
77 select DMA_NONCOHERENT
78 select IRQ_CPU
79 select MIPS_MACHINE
80 select SYS_HAS_CPU_MIPS32_R2
81 select SYS_HAS_EARLY_PRINTK
82 select SYS_SUPPORTS_32BIT_KERNEL
83 select SYS_SUPPORTS_BIG_ENDIAN
84 help
85 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
86
87 config BCM47XX
88 bool "Broadcom BCM47XX based boards"
89 select CEVT_R4K
90 select CSRC_R4K
91 select DMA_NONCOHERENT
92 select HW_HAS_PCI
93 select IRQ_CPU
94 select SYS_HAS_CPU_MIPS32_R1
95 select SYS_SUPPORTS_32BIT_KERNEL
96 select SYS_SUPPORTS_LITTLE_ENDIAN
97 select SSB
98 select SSB_DRIVER_MIPS
99 select SSB_DRIVER_EXTIF
100 select SSB_EMBEDDED
101 select SSB_B43_PCI_BRIDGE if PCI
102 select SSB_PCICORE_HOSTMODE if PCI
103 select GENERIC_GPIO
104 select SYS_HAS_EARLY_PRINTK
105 select CFE
106 help
107 Support for BCM47XX based boards
108
109 config BCM63XX
110 bool "Broadcom BCM63XX based boards"
111 select CEVT_R4K
112 select CSRC_R4K
113 select DMA_NONCOHERENT
114 select IRQ_CPU
115 select SYS_HAS_CPU_MIPS32_R1
116 select SYS_SUPPORTS_32BIT_KERNEL
117 select SYS_SUPPORTS_BIG_ENDIAN
118 select SYS_HAS_EARLY_PRINTK
119 select SWAP_IO_SPACE
120 select ARCH_REQUIRE_GPIOLIB
121 help
122 Support for BCM63XX based boards
123
124 config MIPS_COBALT
125 bool "Cobalt Server"
126 select CEVT_R4K
127 select CSRC_R4K
128 select CEVT_GT641XX
129 select DMA_NONCOHERENT
130 select HW_HAS_PCI
131 select I8253
132 select I8259
133 select IRQ_CPU
134 select IRQ_GT641XX
135 select PCI_GT64XXX_PCI0
136 select PCI
137 select SYS_HAS_CPU_NEVADA
138 select SYS_HAS_EARLY_PRINTK
139 select SYS_SUPPORTS_32BIT_KERNEL
140 select SYS_SUPPORTS_64BIT_KERNEL
141 select SYS_SUPPORTS_LITTLE_ENDIAN
142
143 config MACH_DECSTATION
144 bool "DECstations"
145 select BOOT_ELF32
146 select CEVT_DS1287
147 select CEVT_R4K
148 select CSRC_IOASIC
149 select CSRC_R4K
150 select CPU_DADDI_WORKAROUNDS if 64BIT
151 select CPU_R4000_WORKAROUNDS if 64BIT
152 select CPU_R4400_WORKAROUNDS if 64BIT
153 select DMA_NONCOHERENT
154 select NO_IOPORT
155 select IRQ_CPU
156 select SYS_HAS_CPU_R3000
157 select SYS_HAS_CPU_R4X00
158 select SYS_SUPPORTS_32BIT_KERNEL
159 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
160 select SYS_SUPPORTS_LITTLE_ENDIAN
161 select SYS_SUPPORTS_128HZ
162 select SYS_SUPPORTS_256HZ
163 select SYS_SUPPORTS_1024HZ
164 help
165 This enables support for DEC's MIPS based workstations. For details
166 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
167 DECstation porting pages on <http://decstation.unix-ag.org/>.
168
169 If you have one of the following DECstation Models you definitely
170 want to choose R4xx0 for the CPU Type:
171
172 DECstation 5000/50
173 DECstation 5000/150
174 DECstation 5000/260
175 DECsystem 5900/260
176
177 otherwise choose R3000.
178
179 config MACH_JAZZ
180 bool "Jazz family of machines"
181 select ARC
182 select ARC32
183 select ARCH_MAY_HAVE_PC_FDC
184 select CEVT_R4K
185 select CSRC_R4K
186 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
187 select GENERIC_ISA_DMA
188 select IRQ_CPU
189 select I8253
190 select I8259
191 select ISA
192 select SYS_HAS_CPU_R4X00
193 select SYS_SUPPORTS_32BIT_KERNEL
194 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
195 select SYS_SUPPORTS_100HZ
196 help
197 This a family of machines based on the MIPS R4030 chipset which was
198 used by several vendors to build RISC/os and Windows NT workstations.
199 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
200 Olivetti M700-10 workstations.
201
202 config MACH_JZ4740
203 bool "Ingenic JZ4740 based machines"
204 select SYS_HAS_CPU_MIPS32_R1
205 select SYS_SUPPORTS_32BIT_KERNEL
206 select SYS_SUPPORTS_LITTLE_ENDIAN
207 select DMA_NONCOHERENT
208 select IRQ_CPU
209 select GENERIC_GPIO
210 select ARCH_REQUIRE_GPIOLIB
211 select SYS_HAS_EARLY_PRINTK
212 select HAVE_PWM
213 select HAVE_CLK
214
215 config LASAT
216 bool "LASAT Networks platforms"
217 select CEVT_R4K
218 select CSRC_R4K
219 select DMA_NONCOHERENT
220 select SYS_HAS_EARLY_PRINTK
221 select HW_HAS_PCI
222 select IRQ_CPU
223 select PCI_GT64XXX_PCI0
224 select MIPS_NILE4
225 select R5000_CPU_SCACHE
226 select SYS_HAS_CPU_R5000
227 select SYS_SUPPORTS_32BIT_KERNEL
228 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
229 select SYS_SUPPORTS_LITTLE_ENDIAN
230
231 config MACH_LOONGSON
232 bool "Loongson family of machines"
233 select SYS_SUPPORTS_ZBOOT
234 help
235 This enables the support of Loongson family of machines.
236
237 Loongson is a family of general-purpose MIPS-compatible CPUs.
238 developed at Institute of Computing Technology (ICT),
239 Chinese Academy of Sciences (CAS) in the People's Republic
240 of China. The chief architect is Professor Weiwu Hu.
241
242 config MIPS_MALTA
243 bool "MIPS Malta board"
244 select ARCH_MAY_HAVE_PC_FDC
245 select BOOT_ELF32
246 select BOOT_RAW
247 select CEVT_R4K
248 select CSRC_R4K
249 select DMA_NONCOHERENT
250 select GENERIC_ISA_DMA
251 select IRQ_CPU
252 select IRQ_GIC
253 select HW_HAS_PCI
254 select I8253
255 select I8259
256 select MIPS_BOARDS_GEN
257 select MIPS_BONITO64
258 select MIPS_CPU_SCACHE
259 select PCI_GT64XXX_PCI0
260 select MIPS_MSC
261 select SWAP_IO_SPACE
262 select SYS_HAS_CPU_MIPS32_R1
263 select SYS_HAS_CPU_MIPS32_R2
264 select SYS_HAS_CPU_MIPS64_R1
265 select SYS_HAS_CPU_NEVADA
266 select SYS_HAS_CPU_RM7000
267 select SYS_HAS_EARLY_PRINTK
268 select SYS_SUPPORTS_32BIT_KERNEL
269 select SYS_SUPPORTS_64BIT_KERNEL
270 select SYS_SUPPORTS_BIG_ENDIAN
271 select SYS_SUPPORTS_LITTLE_ENDIAN
272 select SYS_SUPPORTS_MIPS_CMP
273 select SYS_SUPPORTS_MULTITHREADING
274 select SYS_SUPPORTS_SMARTMIPS
275 select SYS_SUPPORTS_ZBOOT
276 help
277 This enables support for the MIPS Technologies Malta evaluation
278 board.
279
280 config MIPS_SIM
281 bool 'MIPS simulator (MIPSsim)'
282 select CEVT_R4K
283 select CSRC_R4K
284 select DMA_NONCOHERENT
285 select SYS_HAS_EARLY_PRINTK
286 select IRQ_CPU
287 select BOOT_RAW
288 select SYS_HAS_CPU_MIPS32_R1
289 select SYS_HAS_CPU_MIPS32_R2
290 select SYS_HAS_EARLY_PRINTK
291 select SYS_SUPPORTS_32BIT_KERNEL
292 select SYS_SUPPORTS_BIG_ENDIAN
293 select SYS_SUPPORTS_MULTITHREADING
294 select SYS_SUPPORTS_LITTLE_ENDIAN
295 help
296 This option enables support for MIPS Technologies MIPSsim software
297 emulator.
298
299 config NEC_MARKEINS
300 bool "NEC EMMA2RH Mark-eins board"
301 select SOC_EMMA2RH
302 select HW_HAS_PCI
303 help
304 This enables support for the NEC Electronics Mark-eins boards.
305
306 config MACH_VR41XX
307 bool "NEC VR4100 series based machines"
308 select CEVT_R4K
309 select CSRC_R4K
310 select SYS_HAS_CPU_VR41XX
311 select ARCH_REQUIRE_GPIOLIB
312
313 config NXP_STB220
314 bool "NXP STB220 board"
315 select SOC_PNX833X
316 help
317 Support for NXP Semiconductors STB220 Development Board.
318
319 config NXP_STB225
320 bool "NXP 225 board"
321 select SOC_PNX833X
322 select SOC_PNX8335
323 help
324 Support for NXP Semiconductors STB225 Development Board.
325
326 config PNX8550_JBS
327 bool "NXP PNX8550 based JBS board"
328 select PNX8550
329 select SYS_SUPPORTS_LITTLE_ENDIAN
330
331 config PNX8550_STB810
332 bool "NXP PNX8550 based STB810 board"
333 select PNX8550
334 select SYS_SUPPORTS_LITTLE_ENDIAN
335
336 config PMC_MSP
337 bool "PMC-Sierra MSP chipsets"
338 depends on EXPERIMENTAL
339 select CEVT_R4K
340 select CSRC_R4K
341 select DMA_NONCOHERENT
342 select SWAP_IO_SPACE
343 select NO_EXCEPT_FILL
344 select BOOT_RAW
345 select SYS_HAS_CPU_MIPS32_R1
346 select SYS_HAS_CPU_MIPS32_R2
347 select SYS_SUPPORTS_32BIT_KERNEL
348 select SYS_SUPPORTS_BIG_ENDIAN
349 select IRQ_CPU
350 select SERIAL_8250
351 select SERIAL_8250_CONSOLE
352 help
353 This adds support for the PMC-Sierra family of Multi-Service
354 Processor System-On-A-Chips. These parts include a number
355 of integrated peripherals, interfaces and DSPs in addition to
356 a variety of MIPS cores.
357
358 config PMC_YOSEMITE
359 bool "PMC-Sierra Yosemite eval board"
360 select CEVT_R4K
361 select CSRC_R4K
362 select DMA_COHERENT
363 select HW_HAS_PCI
364 select IRQ_CPU
365 select IRQ_CPU_RM7K
366 select IRQ_CPU_RM9K
367 select SWAP_IO_SPACE
368 select SYS_HAS_CPU_RM9000
369 select SYS_HAS_EARLY_PRINTK
370 select SYS_SUPPORTS_32BIT_KERNEL
371 select SYS_SUPPORTS_64BIT_KERNEL
372 select SYS_SUPPORTS_BIG_ENDIAN
373 select SYS_SUPPORTS_HIGHMEM
374 select SYS_SUPPORTS_SMP
375 help
376 Yosemite is an evaluation board for the RM9000x2 processor
377 manufactured by PMC-Sierra.
378
379 config POWERTV
380 bool "Cisco PowerTV"
381 select BOOT_ELF32
382 select CEVT_R4K
383 select CPU_MIPSR2_IRQ_VI
384 select CPU_MIPSR2_IRQ_EI
385 select CSRC_POWERTV
386 select DMA_NONCOHERENT
387 select HW_HAS_PCI
388 select SYS_HAS_EARLY_PRINTK
389 select SYS_HAS_CPU_MIPS32_R2
390 select SYS_SUPPORTS_32BIT_KERNEL
391 select SYS_SUPPORTS_BIG_ENDIAN
392 select SYS_SUPPORTS_HIGHMEM
393 select USB_OHCI_LITTLE_ENDIAN
394 help
395 This enables support for the Cisco PowerTV Platform.
396
397 config SGI_IP22
398 bool "SGI IP22 (Indy/Indigo2)"
399 select ARC
400 select ARC32
401 select BOOT_ELF32
402 select CEVT_R4K
403 select CSRC_R4K
404 select DEFAULT_SGI_PARTITION
405 select DMA_NONCOHERENT
406 select HW_HAS_EISA
407 select I8253
408 select I8259
409 select IP22_CPU_SCACHE
410 select IRQ_CPU
411 select GENERIC_ISA_DMA_SUPPORT_BROKEN
412 select SGI_HAS_I8042
413 select SGI_HAS_INDYDOG
414 select SGI_HAS_HAL2
415 select SGI_HAS_SEEQ
416 select SGI_HAS_WD93
417 select SGI_HAS_ZILOG
418 select SWAP_IO_SPACE
419 select SYS_HAS_CPU_R4X00
420 select SYS_HAS_CPU_R5000
421 #
422 # Disable EARLY_PRINTK for now since it leads to overwritten prom
423 # memory during early boot on some machines.
424 #
425 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
426 # for a more details discussion
427 #
428 # select SYS_HAS_EARLY_PRINTK
429 select SYS_SUPPORTS_32BIT_KERNEL
430 select SYS_SUPPORTS_64BIT_KERNEL
431 select SYS_SUPPORTS_BIG_ENDIAN
432 help
433 This are the SGI Indy, Challenge S and Indigo2, as well as certain
434 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
435 that runs on these, say Y here.
436
437 config SGI_IP27
438 bool "SGI IP27 (Origin200/2000)"
439 select ARC
440 select ARC64
441 select BOOT_ELF64
442 select DEFAULT_SGI_PARTITION
443 select DMA_COHERENT
444 select SYS_HAS_EARLY_PRINTK
445 select HW_HAS_PCI
446 select NR_CPUS_DEFAULT_64
447 select SYS_HAS_CPU_R10000
448 select SYS_SUPPORTS_64BIT_KERNEL
449 select SYS_SUPPORTS_BIG_ENDIAN
450 select SYS_SUPPORTS_NUMA
451 select SYS_SUPPORTS_SMP
452 help
453 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
454 workstations. To compile a Linux kernel that runs on these, say Y
455 here.
456
457 config SGI_IP28
458 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
459 depends on EXPERIMENTAL
460 select ARC
461 select ARC64
462 select BOOT_ELF64
463 select CEVT_R4K
464 select CSRC_R4K
465 select DEFAULT_SGI_PARTITION
466 select DMA_NONCOHERENT
467 select GENERIC_ISA_DMA_SUPPORT_BROKEN
468 select IRQ_CPU
469 select HW_HAS_EISA
470 select I8253
471 select I8259
472 select SGI_HAS_I8042
473 select SGI_HAS_INDYDOG
474 select SGI_HAS_HAL2
475 select SGI_HAS_SEEQ
476 select SGI_HAS_WD93
477 select SGI_HAS_ZILOG
478 select SWAP_IO_SPACE
479 select SYS_HAS_CPU_R10000
480 #
481 # Disable EARLY_PRINTK for now since it leads to overwritten prom
482 # memory during early boot on some machines.
483 #
484 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
485 # for a more details discussion
486 #
487 # select SYS_HAS_EARLY_PRINTK
488 select SYS_SUPPORTS_64BIT_KERNEL
489 select SYS_SUPPORTS_BIG_ENDIAN
490 help
491 This is the SGI Indigo2 with R10000 processor. To compile a Linux
492 kernel that runs on these, say Y here.
493
494 config SGI_IP32
495 bool "SGI IP32 (O2)"
496 select ARC
497 select ARC32
498 select BOOT_ELF32
499 select CEVT_R4K
500 select CSRC_R4K
501 select DMA_NONCOHERENT
502 select HW_HAS_PCI
503 select IRQ_CPU
504 select R5000_CPU_SCACHE
505 select RM7000_CPU_SCACHE
506 select SYS_HAS_CPU_R5000
507 select SYS_HAS_CPU_R10000 if BROKEN
508 select SYS_HAS_CPU_RM7000
509 select SYS_HAS_CPU_NEVADA
510 select SYS_SUPPORTS_64BIT_KERNEL
511 select SYS_SUPPORTS_BIG_ENDIAN
512 help
513 If you want this kernel to run on SGI O2 workstation, say Y here.
514
515 config SIBYTE_CRHINE
516 bool "Sibyte BCM91120C-CRhine"
517 depends on EXPERIMENTAL
518 select BOOT_ELF32
519 select DMA_COHERENT
520 select SIBYTE_BCM1120
521 select SWAP_IO_SPACE
522 select SYS_HAS_CPU_SB1
523 select SYS_SUPPORTS_BIG_ENDIAN
524 select SYS_SUPPORTS_LITTLE_ENDIAN
525
526 config SIBYTE_CARMEL
527 bool "Sibyte BCM91120x-Carmel"
528 depends on EXPERIMENTAL
529 select BOOT_ELF32
530 select DMA_COHERENT
531 select SIBYTE_BCM1120
532 select SWAP_IO_SPACE
533 select SYS_HAS_CPU_SB1
534 select SYS_SUPPORTS_BIG_ENDIAN
535 select SYS_SUPPORTS_LITTLE_ENDIAN
536
537 config SIBYTE_CRHONE
538 bool "Sibyte BCM91125C-CRhone"
539 depends on EXPERIMENTAL
540 select BOOT_ELF32
541 select DMA_COHERENT
542 select SIBYTE_BCM1125
543 select SWAP_IO_SPACE
544 select SYS_HAS_CPU_SB1
545 select SYS_SUPPORTS_BIG_ENDIAN
546 select SYS_SUPPORTS_HIGHMEM
547 select SYS_SUPPORTS_LITTLE_ENDIAN
548
549 config SIBYTE_RHONE
550 bool "Sibyte BCM91125E-Rhone"
551 depends on EXPERIMENTAL
552 select BOOT_ELF32
553 select DMA_COHERENT
554 select SIBYTE_BCM1125H
555 select SWAP_IO_SPACE
556 select SYS_HAS_CPU_SB1
557 select SYS_SUPPORTS_BIG_ENDIAN
558 select SYS_SUPPORTS_LITTLE_ENDIAN
559
560 config SIBYTE_SWARM
561 bool "Sibyte BCM91250A-SWARM"
562 select BOOT_ELF32
563 select DMA_COHERENT
564 select HAVE_PATA_PLATFORM
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_HIGHMEM
571 select SYS_SUPPORTS_LITTLE_ENDIAN
572 select ZONE_DMA32 if 64BIT
573
574 config SIBYTE_LITTLESUR
575 bool "Sibyte BCM91250C2-LittleSur"
576 depends on EXPERIMENTAL
577 select BOOT_ELF32
578 select DMA_COHERENT
579 select HAVE_PATA_PLATFORM
580 select NR_CPUS_DEFAULT_2
581 select SIBYTE_SB1250
582 select SWAP_IO_SPACE
583 select SYS_HAS_CPU_SB1
584 select SYS_SUPPORTS_BIG_ENDIAN
585 select SYS_SUPPORTS_HIGHMEM
586 select SYS_SUPPORTS_LITTLE_ENDIAN
587
588 config SIBYTE_SENTOSA
589 bool "Sibyte BCM91250E-Sentosa"
590 depends on EXPERIMENTAL
591 select BOOT_ELF32
592 select DMA_COHERENT
593 select NR_CPUS_DEFAULT_2
594 select SIBYTE_SB1250
595 select SWAP_IO_SPACE
596 select SYS_HAS_CPU_SB1
597 select SYS_SUPPORTS_BIG_ENDIAN
598 select SYS_SUPPORTS_LITTLE_ENDIAN
599
600 config SIBYTE_BIGSUR
601 bool "Sibyte BCM91480B-BigSur"
602 select BOOT_ELF32
603 select DMA_COHERENT
604 select NR_CPUS_DEFAULT_4
605 select SIBYTE_BCM1x80
606 select SWAP_IO_SPACE
607 select SYS_HAS_CPU_SB1
608 select SYS_SUPPORTS_BIG_ENDIAN
609 select SYS_SUPPORTS_HIGHMEM
610 select SYS_SUPPORTS_LITTLE_ENDIAN
611 select ZONE_DMA32 if 64BIT
612
613 config SNI_RM
614 bool "SNI RM200/300/400"
615 select ARC if CPU_LITTLE_ENDIAN
616 select ARC32 if CPU_LITTLE_ENDIAN
617 select SNIPROM if CPU_BIG_ENDIAN
618 select ARCH_MAY_HAVE_PC_FDC
619 select BOOT_ELF32
620 select CEVT_R4K
621 select CSRC_R4K
622 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
623 select DMA_NONCOHERENT
624 select GENERIC_ISA_DMA
625 select HW_HAS_EISA
626 select HW_HAS_PCI
627 select IRQ_CPU
628 select I8253
629 select I8259
630 select ISA
631 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
632 select SYS_HAS_CPU_R4X00
633 select SYS_HAS_CPU_R5000
634 select SYS_HAS_CPU_R10000
635 select R5000_CPU_SCACHE
636 select SYS_HAS_EARLY_PRINTK
637 select SYS_SUPPORTS_32BIT_KERNEL
638 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
639 select SYS_SUPPORTS_BIG_ENDIAN
640 select SYS_SUPPORTS_HIGHMEM
641 select SYS_SUPPORTS_LITTLE_ENDIAN
642 help
643 The SNI RM200/300/400 are MIPS-based machines manufactured by
644 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
645 Technology and now in turn merged with Fujitsu. Say Y here to
646 support this machine type.
647
648 config MACH_TX39XX
649 bool "Toshiba TX39 series based machines"
650
651 config MACH_TX49XX
652 bool "Toshiba TX49 series based machines"
653
654 config MIKROTIK_RB532
655 bool "Mikrotik RB532 boards"
656 select CEVT_R4K
657 select CSRC_R4K
658 select DMA_NONCOHERENT
659 select HW_HAS_PCI
660 select IRQ_CPU
661 select SYS_HAS_CPU_MIPS32_R1
662 select SYS_SUPPORTS_32BIT_KERNEL
663 select SYS_SUPPORTS_LITTLE_ENDIAN
664 select SWAP_IO_SPACE
665 select BOOT_RAW
666 select ARCH_REQUIRE_GPIOLIB
667 help
668 Support the Mikrotik(tm) RouterBoard 532 series,
669 based on the IDT RC32434 SoC.
670
671 config WR_PPMC
672 bool "Wind River PPMC board"
673 select CEVT_R4K
674 select CSRC_R4K
675 select IRQ_CPU
676 select BOOT_ELF32
677 select DMA_NONCOHERENT
678 select HW_HAS_PCI
679 select PCI_GT64XXX_PCI0
680 select SWAP_IO_SPACE
681 select SYS_HAS_CPU_MIPS32_R1
682 select SYS_HAS_CPU_MIPS32_R2
683 select SYS_HAS_CPU_MIPS64_R1
684 select SYS_HAS_CPU_NEVADA
685 select SYS_HAS_CPU_RM7000
686 select SYS_SUPPORTS_32BIT_KERNEL
687 select SYS_SUPPORTS_64BIT_KERNEL
688 select SYS_SUPPORTS_BIG_ENDIAN
689 select SYS_SUPPORTS_LITTLE_ENDIAN
690 help
691 This enables support for the Wind River MIPS32 4KC PPMC evaluation
692 board, which is based on GT64120 bridge chip.
693
694 config CAVIUM_OCTEON_SIMULATOR
695 bool "Cavium Networks Octeon Simulator"
696 select CEVT_R4K
697 select 64BIT_PHYS_ADDR
698 select DMA_COHERENT
699 select SYS_SUPPORTS_64BIT_KERNEL
700 select SYS_SUPPORTS_BIG_ENDIAN
701 select SYS_SUPPORTS_HIGHMEM
702 select SYS_SUPPORTS_HOTPLUG_CPU
703 select SYS_HAS_CPU_CAVIUM_OCTEON
704 help
705 The Octeon simulator is software performance model of the Cavium
706 Octeon Processor. It supports simulating Octeon processors on x86
707 hardware.
708
709 config CAVIUM_OCTEON_REFERENCE_BOARD
710 bool "Cavium Networks Octeon reference board"
711 select CEVT_R4K
712 select 64BIT_PHYS_ADDR
713 select DMA_COHERENT
714 select SYS_SUPPORTS_64BIT_KERNEL
715 select SYS_SUPPORTS_BIG_ENDIAN
716 select SYS_SUPPORTS_HIGHMEM
717 select SYS_SUPPORTS_HOTPLUG_CPU
718 select SYS_HAS_EARLY_PRINTK
719 select SYS_HAS_CPU_CAVIUM_OCTEON
720 select SWAP_IO_SPACE
721 select HW_HAS_PCI
722 select ARCH_SUPPORTS_MSI
723 select ZONE_DMA32
724 select USB_ARCH_HAS_OHCI
725 select USB_ARCH_HAS_EHCI
726 help
727 This option supports all of the Octeon reference boards from Cavium
728 Networks. It builds a kernel that dynamically determines the Octeon
729 CPU type and supports all known board reference implementations.
730 Some of the supported boards are:
731 EBT3000
732 EBH3000
733 EBH3100
734 Thunder
735 Kodama
736 Hikari
737 Say Y here for most Octeon reference boards.
738
739 endchoice
740
741 source "arch/mips/alchemy/Kconfig"
742 source "arch/mips/ath79/Kconfig"
743 source "arch/mips/bcm63xx/Kconfig"
744 source "arch/mips/jazz/Kconfig"
745 source "arch/mips/jz4740/Kconfig"
746 source "arch/mips/lasat/Kconfig"
747 source "arch/mips/pmc-sierra/Kconfig"
748 source "arch/mips/powertv/Kconfig"
749 source "arch/mips/sgi-ip27/Kconfig"
750 source "arch/mips/sibyte/Kconfig"
751 source "arch/mips/txx9/Kconfig"
752 source "arch/mips/vr41xx/Kconfig"
753 source "arch/mips/cavium-octeon/Kconfig"
754 source "arch/mips/loongson/Kconfig"
755
756 endmenu
757
758 config RWSEM_GENERIC_SPINLOCK
759 bool
760 default y
761
762 config RWSEM_XCHGADD_ALGORITHM
763 bool
764
765 config ARCH_HAS_ILOG2_U32
766 bool
767 default n
768
769 config ARCH_HAS_ILOG2_U64
770 bool
771 default n
772
773 config ARCH_SUPPORTS_OPROFILE
774 bool
775 default y if !MIPS_MT_SMTC
776
777 config GENERIC_FIND_NEXT_BIT
778 bool
779 default y
780
781 config GENERIC_FIND_BIT_LE
782 bool
783 default y
784
785 config GENERIC_HWEIGHT
786 bool
787 default y
788
789 config GENERIC_CALIBRATE_DELAY
790 bool
791 default y
792
793 config GENERIC_CLOCKEVENTS
794 bool
795 default y
796
797 config GENERIC_CMOS_UPDATE
798 bool
799 default y
800
801 config SCHED_OMIT_FRAME_POINTER
802 bool
803 default y
804
805 #
806 # Select some configuration options automatically based on user selections.
807 #
808 config ARC
809 bool
810
811 config ARCH_MAY_HAVE_PC_FDC
812 bool
813
814 config BOOT_RAW
815 bool
816
817 config CEVT_BCM1480
818 bool
819
820 config CEVT_DS1287
821 bool
822
823 config CEVT_GT641XX
824 bool
825
826 config CEVT_R4K_LIB
827 bool
828
829 config CEVT_R4K
830 select CEVT_R4K_LIB
831 bool
832
833 config CEVT_SB1250
834 bool
835
836 config CEVT_TXX9
837 bool
838
839 config CSRC_BCM1480
840 bool
841
842 config CSRC_IOASIC
843 bool
844
845 config CSRC_POWERTV
846 bool
847
848 config CSRC_R4K_LIB
849 bool
850
851 config CSRC_R4K
852 select CSRC_R4K_LIB
853 bool
854
855 config CSRC_SB1250
856 bool
857
858 config GPIO_TXX9
859 select GENERIC_GPIO
860 select ARCH_REQUIRE_GPIOLIB
861 bool
862
863 config CFE
864 bool
865
866 config ARCH_DMA_ADDR_T_64BIT
867 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
868
869 config DMA_COHERENT
870 bool
871
872 config DMA_NONCOHERENT
873 bool
874 select NEED_DMA_MAP_STATE
875
876 config NEED_DMA_MAP_STATE
877 bool
878
879 config SYS_HAS_EARLY_PRINTK
880 bool
881
882 config HOTPLUG_CPU
883 bool "Support for hot-pluggable CPUs"
884 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
885 help
886 Say Y here to allow turning CPUs off and on. CPUs can be
887 controlled through /sys/devices/system/cpu.
888 (Note: power management support will enable this option
889 automatically on SMP systems. )
890 Say N if you want to disable CPU hotplug.
891
892 config SYS_SUPPORTS_HOTPLUG_CPU
893 bool
894
895 config I8259
896 bool
897
898 config MIPS_BONITO64
899 bool
900
901 config MIPS_MSC
902 bool
903
904 config MIPS_NILE4
905 bool
906
907 config MIPS_DISABLE_OBSOLETE_IDE
908 bool
909
910 config SYNC_R4K
911 bool
912
913 config MIPS_MACHINE
914 def_bool n
915
916 config NO_IOPORT
917 def_bool n
918
919 config GENERIC_ISA_DMA
920 bool
921 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
922 select ISA_DMA_API
923
924 config GENERIC_ISA_DMA_SUPPORT_BROKEN
925 bool
926 select GENERIC_ISA_DMA
927
928 config ISA_DMA_API
929 bool
930
931 config GENERIC_GPIO
932 bool
933
934 #
935 # Endianess selection. Sufficiently obscure so many users don't know what to
936 # answer,so we try hard to limit the available choices. Also the use of a
937 # choice statement should be more obvious to the user.
938 #
939 choice
940 prompt "Endianess selection"
941 help
942 Some MIPS machines can be configured for either little or big endian
943 byte order. These modes require different kernels and a different
944 Linux distribution. In general there is one preferred byteorder for a
945 particular system but some systems are just as commonly used in the
946 one or the other endianness.
947
948 config CPU_BIG_ENDIAN
949 bool "Big endian"
950 depends on SYS_SUPPORTS_BIG_ENDIAN
951
952 config CPU_LITTLE_ENDIAN
953 bool "Little endian"
954 depends on SYS_SUPPORTS_LITTLE_ENDIAN
955 help
956
957 endchoice
958
959 config EXPORT_UASM
960 bool
961
962 config SYS_SUPPORTS_APM_EMULATION
963 bool
964
965 config SYS_SUPPORTS_BIG_ENDIAN
966 bool
967
968 config SYS_SUPPORTS_LITTLE_ENDIAN
969 bool
970
971 config SYS_SUPPORTS_HUGETLBFS
972 bool
973 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
974 default y
975
976 config IRQ_CPU
977 bool
978
979 config IRQ_CPU_RM7K
980 bool
981
982 config IRQ_CPU_RM9K
983 bool
984
985 config IRQ_MSP_SLP
986 bool
987
988 config IRQ_MSP_CIC
989 bool
990
991 config IRQ_TXX9
992 bool
993
994 config IRQ_GT641XX
995 bool
996
997 config IRQ_GIC
998 bool
999
1000 config IRQ_CPU_OCTEON
1001 bool
1002
1003 config MIPS_BOARDS_GEN
1004 bool
1005
1006 config PCI_GT64XXX_PCI0
1007 bool
1008
1009 config NO_EXCEPT_FILL
1010 bool
1011
1012 config MIPS_RM9122
1013 bool
1014 select SERIAL_RM9000
1015
1016 config SOC_EMMA2RH
1017 bool
1018 select CEVT_R4K
1019 select CSRC_R4K
1020 select DMA_NONCOHERENT
1021 select IRQ_CPU
1022 select SWAP_IO_SPACE
1023 select SYS_HAS_CPU_R5500
1024 select SYS_SUPPORTS_32BIT_KERNEL
1025 select SYS_SUPPORTS_64BIT_KERNEL
1026 select SYS_SUPPORTS_BIG_ENDIAN
1027
1028 config SOC_PNX833X
1029 bool
1030 select CEVT_R4K
1031 select CSRC_R4K
1032 select IRQ_CPU
1033 select DMA_NONCOHERENT
1034 select SYS_HAS_CPU_MIPS32_R2
1035 select SYS_SUPPORTS_32BIT_KERNEL
1036 select SYS_SUPPORTS_LITTLE_ENDIAN
1037 select SYS_SUPPORTS_BIG_ENDIAN
1038 select GENERIC_GPIO
1039 select CPU_MIPSR2_IRQ_VI
1040
1041 config SOC_PNX8335
1042 bool
1043 select SOC_PNX833X
1044
1045 config PNX8550
1046 bool
1047 select SOC_PNX8550
1048
1049 config SOC_PNX8550
1050 bool
1051 select DMA_NONCOHERENT
1052 select HW_HAS_PCI
1053 select SYS_HAS_CPU_MIPS32_R1
1054 select SYS_HAS_EARLY_PRINTK
1055 select SYS_SUPPORTS_32BIT_KERNEL
1056 select GENERIC_GPIO
1057
1058 config SWAP_IO_SPACE
1059 bool
1060
1061 config SERIAL_RM9000
1062 bool
1063
1064 config SGI_HAS_INDYDOG
1065 bool
1066
1067 config SGI_HAS_HAL2
1068 bool
1069
1070 config SGI_HAS_SEEQ
1071 bool
1072
1073 config SGI_HAS_WD93
1074 bool
1075
1076 config SGI_HAS_ZILOG
1077 bool
1078
1079 config SGI_HAS_I8042
1080 bool
1081
1082 config DEFAULT_SGI_PARTITION
1083 bool
1084
1085 config ARC32
1086 bool
1087
1088 config SNIPROM
1089 bool
1090
1091 config BOOT_ELF32
1092 bool
1093
1094 config MIPS_L1_CACHE_SHIFT
1095 int
1096 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1097 default "6" if MIPS_CPU_SCACHE
1098 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1099 default "5"
1100
1101 config HAVE_STD_PC_SERIAL_PORT
1102 bool
1103
1104 config ARC_CONSOLE
1105 bool "ARC console support"
1106 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1107
1108 config ARC_MEMORY
1109 bool
1110 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1111 default y
1112
1113 config ARC_PROMLIB
1114 bool
1115 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1116 default y
1117
1118 config ARC64
1119 bool
1120
1121 config BOOT_ELF64
1122 bool
1123
1124 menu "CPU selection"
1125
1126 choice
1127 prompt "CPU type"
1128 default CPU_R4X00
1129
1130 config CPU_LOONGSON2E
1131 bool "Loongson 2E"
1132 depends on SYS_HAS_CPU_LOONGSON2E
1133 select CPU_LOONGSON2
1134 help
1135 The Loongson 2E processor implements the MIPS III instruction set
1136 with many extensions.
1137
1138 It has an internal FPGA northbridge, which is compatible to
1139 bonito64.
1140
1141 config CPU_LOONGSON2F
1142 bool "Loongson 2F"
1143 depends on SYS_HAS_CPU_LOONGSON2F
1144 select CPU_LOONGSON2
1145 select GENERIC_GPIO
1146 select ARCH_REQUIRE_GPIOLIB
1147 help
1148 The Loongson 2F processor implements the MIPS III instruction set
1149 with many extensions.
1150
1151 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1152 have a similar programming interface with FPGA northbridge used in
1153 Loongson2E.
1154
1155 config CPU_MIPS32_R1
1156 bool "MIPS32 Release 1"
1157 depends on SYS_HAS_CPU_MIPS32_R1
1158 select CPU_HAS_PREFETCH
1159 select CPU_SUPPORTS_32BIT_KERNEL
1160 select CPU_SUPPORTS_HIGHMEM
1161 help
1162 Choose this option to build a kernel for release 1 or later of the
1163 MIPS32 architecture. Most modern embedded systems with a 32-bit
1164 MIPS processor are based on a MIPS32 processor. If you know the
1165 specific type of processor in your system, choose those that one
1166 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1167 Release 2 of the MIPS32 architecture is available since several
1168 years so chances are you even have a MIPS32 Release 2 processor
1169 in which case you should choose CPU_MIPS32_R2 instead for better
1170 performance.
1171
1172 config CPU_MIPS32_R2
1173 bool "MIPS32 Release 2"
1174 depends on SYS_HAS_CPU_MIPS32_R2
1175 select CPU_HAS_PREFETCH
1176 select CPU_SUPPORTS_32BIT_KERNEL
1177 select CPU_SUPPORTS_HIGHMEM
1178 help
1179 Choose this option to build a kernel for release 2 or later of the
1180 MIPS32 architecture. Most modern embedded systems with a 32-bit
1181 MIPS processor are based on a MIPS32 processor. If you know the
1182 specific type of processor in your system, choose those that one
1183 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1184
1185 config CPU_MIPS64_R1
1186 bool "MIPS64 Release 1"
1187 depends on SYS_HAS_CPU_MIPS64_R1
1188 select CPU_HAS_PREFETCH
1189 select CPU_SUPPORTS_32BIT_KERNEL
1190 select CPU_SUPPORTS_64BIT_KERNEL
1191 select CPU_SUPPORTS_HIGHMEM
1192 select CPU_SUPPORTS_HUGEPAGES
1193 help
1194 Choose this option to build a kernel for release 1 or later of the
1195 MIPS64 architecture. Many modern embedded systems with a 64-bit
1196 MIPS processor are based on a MIPS64 processor. If you know the
1197 specific type of processor in your system, choose those that one
1198 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1199 Release 2 of the MIPS64 architecture is available since several
1200 years so chances are you even have a MIPS64 Release 2 processor
1201 in which case you should choose CPU_MIPS64_R2 instead for better
1202 performance.
1203
1204 config CPU_MIPS64_R2
1205 bool "MIPS64 Release 2"
1206 depends on SYS_HAS_CPU_MIPS64_R2
1207 select CPU_HAS_PREFETCH
1208 select CPU_SUPPORTS_32BIT_KERNEL
1209 select CPU_SUPPORTS_64BIT_KERNEL
1210 select CPU_SUPPORTS_HIGHMEM
1211 select CPU_SUPPORTS_HUGEPAGES
1212 help
1213 Choose this option to build a kernel for release 2 or later of the
1214 MIPS64 architecture. Many modern embedded systems with a 64-bit
1215 MIPS processor are based on a MIPS64 processor. If you know the
1216 specific type of processor in your system, choose those that one
1217 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1218
1219 config CPU_R3000
1220 bool "R3000"
1221 depends on SYS_HAS_CPU_R3000
1222 select CPU_HAS_WB
1223 select CPU_SUPPORTS_32BIT_KERNEL
1224 select CPU_SUPPORTS_HIGHMEM
1225 help
1226 Please make sure to pick the right CPU type. Linux/MIPS is not
1227 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1228 *not* work on R4000 machines and vice versa. However, since most
1229 of the supported machines have an R4000 (or similar) CPU, R4x00
1230 might be a safe bet. If the resulting kernel does not work,
1231 try to recompile with R3000.
1232
1233 config CPU_TX39XX
1234 bool "R39XX"
1235 depends on SYS_HAS_CPU_TX39XX
1236 select CPU_SUPPORTS_32BIT_KERNEL
1237
1238 config CPU_VR41XX
1239 bool "R41xx"
1240 depends on SYS_HAS_CPU_VR41XX
1241 select CPU_SUPPORTS_32BIT_KERNEL
1242 select CPU_SUPPORTS_64BIT_KERNEL
1243 help
1244 The options selects support for the NEC VR4100 series of processors.
1245 Only choose this option if you have one of these processors as a
1246 kernel built with this option will not run on any other type of
1247 processor or vice versa.
1248
1249 config CPU_R4300
1250 bool "R4300"
1251 depends on SYS_HAS_CPU_R4300
1252 select CPU_SUPPORTS_32BIT_KERNEL
1253 select CPU_SUPPORTS_64BIT_KERNEL
1254 help
1255 MIPS Technologies R4300-series processors.
1256
1257 config CPU_R4X00
1258 bool "R4x00"
1259 depends on SYS_HAS_CPU_R4X00
1260 select CPU_SUPPORTS_32BIT_KERNEL
1261 select CPU_SUPPORTS_64BIT_KERNEL
1262 help
1263 MIPS Technologies R4000-series processors other than 4300, including
1264 the R4000, R4400, R4600, and 4700.
1265
1266 config CPU_TX49XX
1267 bool "R49XX"
1268 depends on SYS_HAS_CPU_TX49XX
1269 select CPU_HAS_PREFETCH
1270 select CPU_SUPPORTS_32BIT_KERNEL
1271 select CPU_SUPPORTS_64BIT_KERNEL
1272
1273 config CPU_R5000
1274 bool "R5000"
1275 depends on SYS_HAS_CPU_R5000
1276 select CPU_SUPPORTS_32BIT_KERNEL
1277 select CPU_SUPPORTS_64BIT_KERNEL
1278 help
1279 MIPS Technologies R5000-series processors other than the Nevada.
1280
1281 config CPU_R5432
1282 bool "R5432"
1283 depends on SYS_HAS_CPU_R5432
1284 select CPU_SUPPORTS_32BIT_KERNEL
1285 select CPU_SUPPORTS_64BIT_KERNEL
1286
1287 config CPU_R5500
1288 bool "R5500"
1289 depends on SYS_HAS_CPU_R5500
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_64BIT_KERNEL
1292 select CPU_SUPPORTS_HUGEPAGES
1293 help
1294 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1295 instruction set.
1296
1297 config CPU_R6000
1298 bool "R6000"
1299 depends on EXPERIMENTAL
1300 depends on SYS_HAS_CPU_R6000
1301 select CPU_SUPPORTS_32BIT_KERNEL
1302 help
1303 MIPS Technologies R6000 and R6000A series processors. Note these
1304 processors are extremely rare and the support for them is incomplete.
1305
1306 config CPU_NEVADA
1307 bool "RM52xx"
1308 depends on SYS_HAS_CPU_NEVADA
1309 select CPU_SUPPORTS_32BIT_KERNEL
1310 select CPU_SUPPORTS_64BIT_KERNEL
1311 help
1312 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1313
1314 config CPU_R8000
1315 bool "R8000"
1316 depends on EXPERIMENTAL
1317 depends on SYS_HAS_CPU_R8000
1318 select CPU_HAS_PREFETCH
1319 select CPU_SUPPORTS_64BIT_KERNEL
1320 help
1321 MIPS Technologies R8000 processors. Note these processors are
1322 uncommon and the support for them is incomplete.
1323
1324 config CPU_R10000
1325 bool "R10000"
1326 depends on SYS_HAS_CPU_R10000
1327 select CPU_HAS_PREFETCH
1328 select CPU_SUPPORTS_32BIT_KERNEL
1329 select CPU_SUPPORTS_64BIT_KERNEL
1330 select CPU_SUPPORTS_HIGHMEM
1331 help
1332 MIPS Technologies R10000-series processors.
1333
1334 config CPU_RM7000
1335 bool "RM7000"
1336 depends on SYS_HAS_CPU_RM7000
1337 select CPU_HAS_PREFETCH
1338 select CPU_SUPPORTS_32BIT_KERNEL
1339 select CPU_SUPPORTS_64BIT_KERNEL
1340 select CPU_SUPPORTS_HIGHMEM
1341
1342 config CPU_RM9000
1343 bool "RM9000"
1344 depends on SYS_HAS_CPU_RM9000
1345 select CPU_HAS_PREFETCH
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
1348 select CPU_SUPPORTS_HIGHMEM
1349 select WEAK_ORDERING
1350
1351 config CPU_SB1
1352 bool "SB1"
1353 depends on SYS_HAS_CPU_SB1
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
1356 select CPU_SUPPORTS_HIGHMEM
1357 select WEAK_ORDERING
1358
1359 config CPU_CAVIUM_OCTEON
1360 bool "Cavium Octeon processor"
1361 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1362 select IRQ_CPU
1363 select IRQ_CPU_OCTEON
1364 select CPU_HAS_PREFETCH
1365 select CPU_SUPPORTS_64BIT_KERNEL
1366 select SYS_SUPPORTS_SMP
1367 select NR_CPUS_DEFAULT_16
1368 select WEAK_ORDERING
1369 select CPU_SUPPORTS_HIGHMEM
1370 select CPU_SUPPORTS_HUGEPAGES
1371 help
1372 The Cavium Octeon processor is a highly integrated chip containing
1373 many ethernet hardware widgets for networking tasks. The processor
1374 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1375 Full details can be found at http://www.caviumnetworks.com.
1376
1377 config CPU_BMIPS3300
1378 bool "BMIPS3300"
1379 depends on SYS_HAS_CPU_BMIPS3300
1380 select DMA_NONCOHERENT
1381 select IRQ_CPU
1382 select SWAP_IO_SPACE
1383 select SYS_SUPPORTS_32BIT_KERNEL
1384 select WEAK_ORDERING
1385 help
1386 Broadcom BMIPS3300 processors.
1387
1388 config CPU_BMIPS4350
1389 bool "BMIPS4350"
1390 depends on SYS_HAS_CPU_BMIPS4350
1391 select CPU_SUPPORTS_32BIT_KERNEL
1392 select DMA_NONCOHERENT
1393 select IRQ_CPU
1394 select SWAP_IO_SPACE
1395 select SYS_SUPPORTS_SMP
1396 select SYS_SUPPORTS_HOTPLUG_CPU
1397 select WEAK_ORDERING
1398 help
1399 Broadcom BMIPS4350 ("VIPER") processors.
1400
1401 config CPU_BMIPS4380
1402 bool "BMIPS4380"
1403 depends on SYS_HAS_CPU_BMIPS4380
1404 select CPU_SUPPORTS_32BIT_KERNEL
1405 select DMA_NONCOHERENT
1406 select IRQ_CPU
1407 select SWAP_IO_SPACE
1408 select SYS_SUPPORTS_SMP
1409 select SYS_SUPPORTS_HOTPLUG_CPU
1410 select WEAK_ORDERING
1411 help
1412 Broadcom BMIPS4380 processors.
1413
1414 config CPU_BMIPS5000
1415 bool "BMIPS5000"
1416 depends on SYS_HAS_CPU_BMIPS5000
1417 select CPU_SUPPORTS_32BIT_KERNEL
1418 select CPU_SUPPORTS_HIGHMEM
1419 select DMA_NONCOHERENT
1420 select IRQ_CPU
1421 select SWAP_IO_SPACE
1422 select SYS_SUPPORTS_SMP
1423 select SYS_SUPPORTS_HOTPLUG_CPU
1424 select WEAK_ORDERING
1425 help
1426 Broadcom BMIPS5000 processors.
1427
1428 endchoice
1429
1430 if CPU_LOONGSON2F
1431 config CPU_NOP_WORKAROUNDS
1432 bool
1433
1434 config CPU_JUMP_WORKAROUNDS
1435 bool
1436
1437 config CPU_LOONGSON2F_WORKAROUNDS
1438 bool "Loongson 2F Workarounds"
1439 default y
1440 select CPU_NOP_WORKAROUNDS
1441 select CPU_JUMP_WORKAROUNDS
1442 help
1443 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1444 require workarounds. Without workarounds the system may hang
1445 unexpectedly. For more information please refer to the gas
1446 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1447
1448 Loongson 2F03 and later have fixed these issues and no workarounds
1449 are needed. The workarounds have no significant side effect on them
1450 but may decrease the performance of the system so this option should
1451 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1452 systems.
1453
1454 If unsure, please say Y.
1455 endif # CPU_LOONGSON2F
1456
1457 config SYS_SUPPORTS_ZBOOT
1458 bool
1459 select HAVE_KERNEL_GZIP
1460 select HAVE_KERNEL_BZIP2
1461 select HAVE_KERNEL_LZMA
1462 select HAVE_KERNEL_LZO
1463
1464 config SYS_SUPPORTS_ZBOOT_UART16550
1465 bool
1466 select SYS_SUPPORTS_ZBOOT
1467
1468 config CPU_LOONGSON2
1469 bool
1470 select CPU_SUPPORTS_32BIT_KERNEL
1471 select CPU_SUPPORTS_64BIT_KERNEL
1472 select CPU_SUPPORTS_HIGHMEM
1473
1474 config SYS_HAS_CPU_LOONGSON2E
1475 bool
1476
1477 config SYS_HAS_CPU_LOONGSON2F
1478 bool
1479 select CPU_SUPPORTS_CPUFREQ
1480 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1481 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1482
1483 config SYS_HAS_CPU_MIPS32_R1
1484 bool
1485
1486 config SYS_HAS_CPU_MIPS32_R2
1487 bool
1488
1489 config SYS_HAS_CPU_MIPS64_R1
1490 bool
1491
1492 config SYS_HAS_CPU_MIPS64_R2
1493 bool
1494
1495 config SYS_HAS_CPU_R3000
1496 bool
1497
1498 config SYS_HAS_CPU_TX39XX
1499 bool
1500
1501 config SYS_HAS_CPU_VR41XX
1502 bool
1503
1504 config SYS_HAS_CPU_R4300
1505 bool
1506
1507 config SYS_HAS_CPU_R4X00
1508 bool
1509
1510 config SYS_HAS_CPU_TX49XX
1511 bool
1512
1513 config SYS_HAS_CPU_R5000
1514 bool
1515
1516 config SYS_HAS_CPU_R5432
1517 bool
1518
1519 config SYS_HAS_CPU_R5500
1520 bool
1521
1522 config SYS_HAS_CPU_R6000
1523 bool
1524
1525 config SYS_HAS_CPU_NEVADA
1526 bool
1527
1528 config SYS_HAS_CPU_R8000
1529 bool
1530
1531 config SYS_HAS_CPU_R10000
1532 bool
1533
1534 config SYS_HAS_CPU_RM7000
1535 bool
1536
1537 config SYS_HAS_CPU_RM9000
1538 bool
1539
1540 config SYS_HAS_CPU_SB1
1541 bool
1542
1543 config SYS_HAS_CPU_CAVIUM_OCTEON
1544 bool
1545
1546 config SYS_HAS_CPU_BMIPS3300
1547 bool
1548
1549 config SYS_HAS_CPU_BMIPS4350
1550 bool
1551
1552 config SYS_HAS_CPU_BMIPS4380
1553 bool
1554
1555 config SYS_HAS_CPU_BMIPS5000
1556 bool
1557
1558 #
1559 # CPU may reorder R->R, R->W, W->R, W->W
1560 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1561 #
1562 config WEAK_ORDERING
1563 bool
1564
1565 #
1566 # CPU may reorder reads and writes beyond LL/SC
1567 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1568 #
1569 config WEAK_REORDERING_BEYOND_LLSC
1570 bool
1571 endmenu
1572
1573 #
1574 # These two indicate any level of the MIPS32 and MIPS64 architecture
1575 #
1576 config CPU_MIPS32
1577 bool
1578 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1579
1580 config CPU_MIPS64
1581 bool
1582 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1583
1584 #
1585 # These two indicate the revision of the architecture, either Release 1 or Release 2
1586 #
1587 config CPU_MIPSR1
1588 bool
1589 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1590
1591 config CPU_MIPSR2
1592 bool
1593 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1594
1595 config SYS_SUPPORTS_32BIT_KERNEL
1596 bool
1597 config SYS_SUPPORTS_64BIT_KERNEL
1598 bool
1599 config CPU_SUPPORTS_32BIT_KERNEL
1600 bool
1601 config CPU_SUPPORTS_64BIT_KERNEL
1602 bool
1603 config CPU_SUPPORTS_CPUFREQ
1604 bool
1605 config CPU_SUPPORTS_ADDRWINCFG
1606 bool
1607 config CPU_SUPPORTS_HUGEPAGES
1608 bool
1609 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1610 bool
1611 config MIPS_PGD_C0_CONTEXT
1612 bool
1613 default y if 64BIT && CPU_MIPSR2
1614
1615 #
1616 # Set to y for ptrace access to watch registers.
1617 #
1618 config HARDWARE_WATCHPOINTS
1619 bool
1620 default y if CPU_MIPSR1 || CPU_MIPSR2
1621
1622 menu "Kernel type"
1623
1624 choice
1625
1626 prompt "Kernel code model"
1627 help
1628 You should only select this option if you have a workload that
1629 actually benefits from 64-bit processing or if your machine has
1630 large memory. You will only be presented a single option in this
1631 menu if your system does not support both 32-bit and 64-bit kernels.
1632
1633 config 32BIT
1634 bool "32-bit kernel"
1635 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1636 select TRAD_SIGNALS
1637 help
1638 Select this option if you want to build a 32-bit kernel.
1639 config 64BIT
1640 bool "64-bit kernel"
1641 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1642 select HAVE_SYSCALL_WRAPPERS
1643 help
1644 Select this option if you want to build a 64-bit kernel.
1645
1646 endchoice
1647
1648 choice
1649 prompt "Kernel page size"
1650 default PAGE_SIZE_4KB
1651
1652 config PAGE_SIZE_4KB
1653 bool "4kB"
1654 depends on !CPU_LOONGSON2
1655 help
1656 This option select the standard 4kB Linux page size. On some
1657 R3000-family processors this is the only available page size. Using
1658 4kB page size will minimize memory consumption and is therefore
1659 recommended for low memory systems.
1660
1661 config PAGE_SIZE_8KB
1662 bool "8kB"
1663 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1664 help
1665 Using 8kB page size will result in higher performance kernel at
1666 the price of higher memory consumption. This option is available
1667 only on R8000 and cnMIPS processors. Note that you will need a
1668 suitable Linux distribution to support this.
1669
1670 config PAGE_SIZE_16KB
1671 bool "16kB"
1672 depends on !CPU_R3000 && !CPU_TX39XX
1673 help
1674 Using 16kB page size will result in higher performance kernel at
1675 the price of higher memory consumption. This option is available on
1676 all non-R3000 family processors. Note that you will need a suitable
1677 Linux distribution to support this.
1678
1679 config PAGE_SIZE_32KB
1680 bool "32kB"
1681 depends on CPU_CAVIUM_OCTEON
1682 help
1683 Using 32kB page size will result in higher performance kernel at
1684 the price of higher memory consumption. This option is available
1685 only on cnMIPS cores. Note that you will need a suitable Linux
1686 distribution to support this.
1687
1688 config PAGE_SIZE_64KB
1689 bool "64kB"
1690 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1691 help
1692 Using 64kB page size will result in higher performance kernel at
1693 the price of higher memory consumption. This option is available on
1694 all non-R3000 family processor. Not that at the time of this
1695 writing this option is still high experimental.
1696
1697 endchoice
1698
1699 config FORCE_MAX_ZONEORDER
1700 int "Maximum zone order"
1701 range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1702 default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1703 range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1704 default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1705 range 11 64
1706 default "11"
1707 help
1708 The kernel memory allocator divides physically contiguous memory
1709 blocks into "zones", where each zone is a power of two number of
1710 pages. This option selects the largest power of two that the kernel
1711 keeps in the memory allocator. If you need to allocate very large
1712 blocks of physically contiguous memory, then you may need to
1713 increase this value.
1714
1715 This config option is actually maximum order plus one. For example,
1716 a value of 11 means that the largest free memory block is 2^10 pages.
1717
1718 The page size is not necessarily 4KB. Keep this in mind
1719 when choosing a value for this option.
1720
1721 config BOARD_SCACHE
1722 bool
1723
1724 config IP22_CPU_SCACHE
1725 bool
1726 select BOARD_SCACHE
1727
1728 #
1729 # Support for a MIPS32 / MIPS64 style S-caches
1730 #
1731 config MIPS_CPU_SCACHE
1732 bool
1733 select BOARD_SCACHE
1734
1735 config R5000_CPU_SCACHE
1736 bool
1737 select BOARD_SCACHE
1738
1739 config RM7000_CPU_SCACHE
1740 bool
1741 select BOARD_SCACHE
1742
1743 config SIBYTE_DMA_PAGEOPS
1744 bool "Use DMA to clear/copy pages"
1745 depends on CPU_SB1
1746 help
1747 Instead of using the CPU to zero and copy pages, use a Data Mover
1748 channel. These DMA channels are otherwise unused by the standard
1749 SiByte Linux port. Seems to give a small performance benefit.
1750
1751 config CPU_HAS_PREFETCH
1752 bool
1753
1754 choice
1755 prompt "MIPS MT options"
1756
1757 config MIPS_MT_DISABLED
1758 bool "Disable multithreading support."
1759 help
1760 Use this option if your workload can't take advantage of
1761 MIPS hardware multithreading support. On systems that don't have
1762 the option of an MT-enabled processor this option will be the only
1763 option in this menu.
1764
1765 config MIPS_MT_SMP
1766 bool "Use 1 TC on each available VPE for SMP"
1767 depends on SYS_SUPPORTS_MULTITHREADING
1768 select CPU_MIPSR2_IRQ_VI
1769 select CPU_MIPSR2_IRQ_EI
1770 select MIPS_MT
1771 select NR_CPUS_DEFAULT_2
1772 select SMP
1773 select SYS_SUPPORTS_SCHED_SMT if SMP
1774 select SYS_SUPPORTS_SMP
1775 select SMP_UP
1776 help
1777 This is a kernel model which is known a VSMP but lately has been
1778 marketesed into SMVP.
1779 Virtual SMP uses the processor's VPEs to implement virtual
1780 processors. In currently available configuration of the 34K processor
1781 this allows for a dual processor. Both processors will share the same
1782 primary caches; each will obtain the half of the TLB for it's own
1783 exclusive use. For a layman this model can be described as similar to
1784 what Intel calls Hyperthreading.
1785
1786 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1787
1788 config MIPS_MT_SMTC
1789 bool "SMTC: Use all TCs on all VPEs for SMP"
1790 depends on CPU_MIPS32_R2
1791 #depends on CPU_MIPS64_R2 # once there is hardware ...
1792 depends on SYS_SUPPORTS_MULTITHREADING
1793 select CPU_MIPSR2_IRQ_VI
1794 select CPU_MIPSR2_IRQ_EI
1795 select MIPS_MT
1796 select NR_CPUS_DEFAULT_8
1797 select SMP
1798 select SYS_SUPPORTS_SMP
1799 select SMP_UP
1800 help
1801 This is a kernel model which is known a SMTC or lately has been
1802 marketesed into SMVP.
1803 is presenting the available TC's of the core as processors to Linux.
1804 On currently available 34K processors this means a Linux system will
1805 see up to 5 processors. The implementation of the SMTC kernel differs
1806 significantly from VSMP and cannot efficiently coexist in the same
1807 kernel binary so the choice between VSMP and SMTC is a compile time
1808 decision.
1809
1810 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1811
1812 endchoice
1813
1814 config MIPS_MT
1815 bool
1816
1817 config SCHED_SMT
1818 bool "SMT (multithreading) scheduler support"
1819 depends on SYS_SUPPORTS_SCHED_SMT
1820 default n
1821 help
1822 SMT scheduler support improves the CPU scheduler's decision making
1823 when dealing with MIPS MT enabled cores at a cost of slightly
1824 increased overhead in some places. If unsure say N here.
1825
1826 config SYS_SUPPORTS_SCHED_SMT
1827 bool
1828
1829
1830 config SYS_SUPPORTS_MULTITHREADING
1831 bool
1832
1833 config MIPS_MT_FPAFF
1834 bool "Dynamic FPU affinity for FP-intensive threads"
1835 default y
1836 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1837
1838 config MIPS_VPE_LOADER
1839 bool "VPE loader support."
1840 depends on SYS_SUPPORTS_MULTITHREADING
1841 select CPU_MIPSR2_IRQ_VI
1842 select CPU_MIPSR2_IRQ_EI
1843 select MIPS_MT
1844 help
1845 Includes a loader for loading an elf relocatable object
1846 onto another VPE and running it.
1847
1848 config MIPS_MT_SMTC_IM_BACKSTOP
1849 bool "Use per-TC register bits as backstop for inhibited IM bits"
1850 depends on MIPS_MT_SMTC
1851 default n
1852 help
1853 To support multiple TC microthreads acting as "CPUs" within
1854 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1855 during interrupt handling. To support legacy drivers and interrupt
1856 controller management code, SMTC has a "backstop" to track and
1857 if necessary restore the interrupt mask. This has some performance
1858 impact on interrupt service overhead.
1859
1860 config MIPS_MT_SMTC_IRQAFF
1861 bool "Support IRQ affinity API"
1862 depends on MIPS_MT_SMTC
1863 default n
1864 help
1865 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1866 for SMTC Linux kernel. Requires platform support, of which
1867 an example can be found in the MIPS kernel i8259 and Malta
1868 platform code. Adds some overhead to interrupt dispatch, and
1869 should be used only if you know what you are doing.
1870
1871 config MIPS_VPE_LOADER_TOM
1872 bool "Load VPE program into memory hidden from linux"
1873 depends on MIPS_VPE_LOADER
1874 default y
1875 help
1876 The loader can use memory that is present but has been hidden from
1877 Linux using the kernel command line option "mem=xxMB". It's up to
1878 you to ensure the amount you put in the option and the space your
1879 program requires is less or equal to the amount physically present.
1880
1881 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1882 config MIPS_VPE_APSP_API
1883 bool "Enable support for AP/SP API (RTLX)"
1884 depends on MIPS_VPE_LOADER
1885 help
1886
1887 config MIPS_APSP_KSPD
1888 bool "Enable KSPD"
1889 depends on MIPS_VPE_APSP_API
1890 default y
1891 help
1892 KSPD is a kernel daemon that accepts syscall requests from the SP
1893 side, actions them and returns the results. It also handles the
1894 "exit" syscall notifying other kernel modules the SP program is
1895 exiting. You probably want to say yes here.
1896
1897 config MIPS_CMP
1898 bool "MIPS CMP framework support"
1899 depends on SYS_SUPPORTS_MIPS_CMP
1900 select SYNC_R4K
1901 select SYS_SUPPORTS_SMP
1902 select SYS_SUPPORTS_SCHED_SMT if SMP
1903 select WEAK_ORDERING
1904 default n
1905 help
1906 This is a placeholder option for the GCMP work. It will need to
1907 be handled differently...
1908
1909 config SB1_PASS_1_WORKAROUNDS
1910 bool
1911 depends on CPU_SB1_PASS_1
1912 default y
1913
1914 config SB1_PASS_2_WORKAROUNDS
1915 bool
1916 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1917 default y
1918
1919 config SB1_PASS_2_1_WORKAROUNDS
1920 bool
1921 depends on CPU_SB1 && CPU_SB1_PASS_2
1922 default y
1923
1924 config 64BIT_PHYS_ADDR
1925 bool
1926
1927 config ARCH_PHYS_ADDR_T_64BIT
1928 def_bool 64BIT_PHYS_ADDR
1929
1930 config CPU_HAS_SMARTMIPS
1931 depends on SYS_SUPPORTS_SMARTMIPS
1932 bool "Support for the SmartMIPS ASE"
1933 help
1934 SmartMIPS is a extension of the MIPS32 architecture aimed at
1935 increased security at both hardware and software level for
1936 smartcards. Enabling this option will allow proper use of the
1937 SmartMIPS instructions by Linux applications. However a kernel with
1938 this option will not work on a MIPS core without SmartMIPS core. If
1939 you don't know you probably don't have SmartMIPS and should say N
1940 here.
1941
1942 config CPU_HAS_WB
1943 bool
1944
1945 #
1946 # Vectored interrupt mode is an R2 feature
1947 #
1948 config CPU_MIPSR2_IRQ_VI
1949 bool
1950
1951 #
1952 # Extended interrupt mode is an R2 feature
1953 #
1954 config CPU_MIPSR2_IRQ_EI
1955 bool
1956
1957 config CPU_HAS_SYNC
1958 bool
1959 depends on !CPU_R3000
1960 default y
1961
1962 config GENERIC_CLOCKEVENTS_BROADCAST
1963 bool
1964
1965 #
1966 # CPU non-features
1967 #
1968 config CPU_DADDI_WORKAROUNDS
1969 bool
1970
1971 config CPU_R4000_WORKAROUNDS
1972 bool
1973 select CPU_R4400_WORKAROUNDS
1974
1975 config CPU_R4400_WORKAROUNDS
1976 bool
1977
1978 #
1979 # - Highmem only makes sense for the 32-bit kernel.
1980 # - The current highmem code will only work properly on physically indexed
1981 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1982 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1983 # moment we protect the user and offer the highmem option only on machines
1984 # where it's known to be safe. This will not offer highmem on a few systems
1985 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1986 # indexed CPUs but we're playing safe.
1987 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1988 # know they might have memory configurations that could make use of highmem
1989 # support.
1990 #
1991 config HIGHMEM
1992 bool "High Memory Support"
1993 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1994
1995 config CPU_SUPPORTS_HIGHMEM
1996 bool
1997
1998 config SYS_SUPPORTS_HIGHMEM
1999 bool
2000
2001 config SYS_SUPPORTS_SMARTMIPS
2002 bool
2003
2004 config ARCH_FLATMEM_ENABLE
2005 def_bool y
2006 depends on !NUMA && !CPU_LOONGSON2
2007
2008 config ARCH_DISCONTIGMEM_ENABLE
2009 bool
2010 default y if SGI_IP27
2011 help
2012 Say Y to support efficient handling of discontiguous physical memory,
2013 for architectures which are either NUMA (Non-Uniform Memory Access)
2014 or have huge holes in the physical address space for other reasons.
2015 See <file:Documentation/vm/numa> for more.
2016
2017 config ARCH_POPULATES_NODE_MAP
2018 def_bool y
2019
2020 config ARCH_SPARSEMEM_ENABLE
2021 bool
2022 select SPARSEMEM_STATIC
2023
2024 config NUMA
2025 bool "NUMA Support"
2026 depends on SYS_SUPPORTS_NUMA
2027 help
2028 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2029 Access). This option improves performance on systems with more
2030 than two nodes; on two node systems it is generally better to
2031 leave it disabled; on single node systems disable this option
2032 disabled.
2033
2034 config SYS_SUPPORTS_NUMA
2035 bool
2036
2037 config NODES_SHIFT
2038 int
2039 default "6"
2040 depends on NEED_MULTIPLE_NODES
2041
2042 config HW_PERF_EVENTS
2043 bool "Enable hardware performance counter support for perf events"
2044 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32
2045 default y
2046 help
2047 Enable hardware performance counter support for perf events. If
2048 disabled, perf events will use software events only.
2049
2050 source "mm/Kconfig"
2051
2052 config SMP
2053 bool "Multi-Processing support"
2054 depends on SYS_SUPPORTS_SMP
2055 select IRQ_PER_CPU
2056 select USE_GENERIC_SMP_HELPERS
2057 help
2058 This enables support for systems with more than one CPU. If you have
2059 a system with only one CPU, like most personal computers, say N. If
2060 you have a system with more than one CPU, say Y.
2061
2062 If you say N here, the kernel will run on single and multiprocessor
2063 machines, but will use only one CPU of a multiprocessor machine. If
2064 you say Y here, the kernel will run on many, but not all,
2065 singleprocessor machines. On a singleprocessor machine, the kernel
2066 will run faster if you say N here.
2067
2068 People using multiprocessor machines who say Y here should also say
2069 Y to "Enhanced Real Time Clock Support", below.
2070
2071 See also the SMP-HOWTO available at
2072 <http://www.tldp.org/docs.html#howto>.
2073
2074 If you don't know what to do here, say N.
2075
2076 config SMP_UP
2077 bool
2078
2079 config SYS_SUPPORTS_MIPS_CMP
2080 bool
2081
2082 config SYS_SUPPORTS_SMP
2083 bool
2084
2085 config NR_CPUS_DEFAULT_1
2086 bool
2087
2088 config NR_CPUS_DEFAULT_2
2089 bool
2090
2091 config NR_CPUS_DEFAULT_4
2092 bool
2093
2094 config NR_CPUS_DEFAULT_8
2095 bool
2096
2097 config NR_CPUS_DEFAULT_16
2098 bool
2099
2100 config NR_CPUS_DEFAULT_32
2101 bool
2102
2103 config NR_CPUS_DEFAULT_64
2104 bool
2105
2106 config NR_CPUS
2107 int "Maximum number of CPUs (2-64)"
2108 range 1 64 if NR_CPUS_DEFAULT_1
2109 depends on SMP
2110 default "1" if NR_CPUS_DEFAULT_1
2111 default "2" if NR_CPUS_DEFAULT_2
2112 default "4" if NR_CPUS_DEFAULT_4
2113 default "8" if NR_CPUS_DEFAULT_8
2114 default "16" if NR_CPUS_DEFAULT_16
2115 default "32" if NR_CPUS_DEFAULT_32
2116 default "64" if NR_CPUS_DEFAULT_64
2117 help
2118 This allows you to specify the maximum number of CPUs which this
2119 kernel will support. The maximum supported value is 32 for 32-bit
2120 kernel and 64 for 64-bit kernels; the minimum value which makes
2121 sense is 1 for Qemu (useful only for kernel debugging purposes)
2122 and 2 for all others.
2123
2124 This is purely to save memory - each supported CPU adds
2125 approximately eight kilobytes to the kernel image. For best
2126 performance should round up your number of processors to the next
2127 power of two.
2128
2129 source "kernel/time/Kconfig"
2130
2131 #
2132 # Timer Interrupt Frequency Configuration
2133 #
2134
2135 choice
2136 prompt "Timer frequency"
2137 default HZ_250
2138 help
2139 Allows the configuration of the timer frequency.
2140
2141 config HZ_48
2142 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2143
2144 config HZ_100
2145 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2146
2147 config HZ_128
2148 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2149
2150 config HZ_250
2151 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2152
2153 config HZ_256
2154 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2155
2156 config HZ_1000
2157 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2158
2159 config HZ_1024
2160 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2161
2162 endchoice
2163
2164 config SYS_SUPPORTS_48HZ
2165 bool
2166
2167 config SYS_SUPPORTS_100HZ
2168 bool
2169
2170 config SYS_SUPPORTS_128HZ
2171 bool
2172
2173 config SYS_SUPPORTS_250HZ
2174 bool
2175
2176 config SYS_SUPPORTS_256HZ
2177 bool
2178
2179 config SYS_SUPPORTS_1000HZ
2180 bool
2181
2182 config SYS_SUPPORTS_1024HZ
2183 bool
2184
2185 config SYS_SUPPORTS_ARBIT_HZ
2186 bool
2187 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2188 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2189 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2190 !SYS_SUPPORTS_1024HZ
2191
2192 config HZ
2193 int
2194 default 48 if HZ_48
2195 default 100 if HZ_100
2196 default 128 if HZ_128
2197 default 250 if HZ_250
2198 default 256 if HZ_256
2199 default 1000 if HZ_1000
2200 default 1024 if HZ_1024
2201
2202 source "kernel/Kconfig.preempt"
2203
2204 config MIPS_INSANE_LARGE
2205 bool "Support for large 64-bit configurations"
2206 depends on CPU_R10000 && 64BIT
2207 help
2208 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2209 previous 64-bit processors which only supported 40 bit / 1TB. If you
2210 need processes of more than 1TB virtual address space, say Y here.
2211 This will result in additional memory usage, so it is not
2212 recommended for normal users.
2213
2214 config KEXEC
2215 bool "Kexec system call (EXPERIMENTAL)"
2216 depends on EXPERIMENTAL
2217 help
2218 kexec is a system call that implements the ability to shutdown your
2219 current kernel, and to start another kernel. It is like a reboot
2220 but it is independent of the system firmware. And like a reboot
2221 you can start any kernel with it, not just Linux.
2222
2223 The name comes from the similarity to the exec system call.
2224
2225 It is an ongoing process to be certain the hardware in a machine
2226 is properly shutdown, so do not be surprised if this code does not
2227 initially work for you. It may help to enable device hotplugging
2228 support. As of this writing the exact hardware interface is
2229 strongly in flux, so no good recommendation can be made.
2230
2231 config SECCOMP
2232 bool "Enable seccomp to safely compute untrusted bytecode"
2233 depends on PROC_FS
2234 default y
2235 help
2236 This kernel feature is useful for number crunching applications
2237 that may need to compute untrusted bytecode during their
2238 execution. By using pipes or other transports made available to
2239 the process as file descriptors supporting the read/write
2240 syscalls, it's possible to isolate those applications in
2241 their own address space using seccomp. Once seccomp is
2242 enabled via /proc/<pid>/seccomp, it cannot be disabled
2243 and the task is only allowed to execute a few safe syscalls
2244 defined by each seccomp mode.
2245
2246 If unsure, say Y. Only embedded should say N here.
2247
2248 config USE_OF
2249 bool "Flattened Device Tree support"
2250 select OF
2251 select OF_EARLY_FLATTREE
2252 help
2253 Include support for flattened device tree machine descriptions.
2254
2255 endmenu
2256
2257 config LOCKDEP_SUPPORT
2258 bool
2259 default y
2260
2261 config STACKTRACE_SUPPORT
2262 bool
2263 default y
2264
2265 source "init/Kconfig"
2266
2267 source "kernel/Kconfig.freezer"
2268
2269 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2270
2271 config HW_HAS_EISA
2272 bool
2273 config HW_HAS_PCI
2274 bool
2275
2276 config PCI
2277 bool "Support for PCI controller"
2278 depends on HW_HAS_PCI
2279 select PCI_DOMAINS
2280 help
2281 Find out whether you have a PCI motherboard. PCI is the name of a
2282 bus system, i.e. the way the CPU talks to the other stuff inside
2283 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2284 say Y, otherwise N.
2285
2286 config PCI_DOMAINS
2287 bool
2288
2289 source "drivers/pci/Kconfig"
2290
2291 #
2292 # ISA support is now enabled via select. Too many systems still have the one
2293 # or other ISA chip on the board that users don't know about so don't expect
2294 # users to choose the right thing ...
2295 #
2296 config ISA
2297 bool
2298
2299 config EISA
2300 bool "EISA support"
2301 depends on HW_HAS_EISA
2302 select ISA
2303 select GENERIC_ISA_DMA
2304 ---help---
2305 The Extended Industry Standard Architecture (EISA) bus was
2306 developed as an open alternative to the IBM MicroChannel bus.
2307
2308 The EISA bus provided some of the features of the IBM MicroChannel
2309 bus while maintaining backward compatibility with cards made for
2310 the older ISA bus. The EISA bus saw limited use between 1988 and
2311 1995 when it was made obsolete by the PCI bus.
2312
2313 Say Y here if you are building a kernel for an EISA-based machine.
2314
2315 Otherwise, say N.
2316
2317 source "drivers/eisa/Kconfig"
2318
2319 config TC
2320 bool "TURBOchannel support"
2321 depends on MACH_DECSTATION
2322 help
2323 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2324 processors. TURBOchannel programming specifications are available
2325 at:
2326 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2327 and:
2328 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2329 Linux driver support status is documented at:
2330 <http://www.linux-mips.org/wiki/DECstation>
2331
2332 #config ACCESSBUS
2333 # bool "Access.Bus support"
2334 # depends on TC
2335
2336 config MMU
2337 bool
2338 default y
2339
2340 config I8253
2341 bool
2342 select MIPS_EXTERNAL_TIMER
2343
2344 config ZONE_DMA32
2345 bool
2346
2347 source "drivers/pcmcia/Kconfig"
2348
2349 source "drivers/pci/hotplug/Kconfig"
2350
2351 config RAPIDIO
2352 bool "RapidIO support"
2353 depends on PCI
2354 default n
2355 help
2356 If you say Y here, the kernel will include drivers and
2357 infrastructure code to support RapidIO interconnect devices.
2358
2359 source "drivers/rapidio/Kconfig"
2360
2361 endmenu
2362
2363 menu "Executable file formats"
2364
2365 source "fs/Kconfig.binfmt"
2366
2367 config TRAD_SIGNALS
2368 bool
2369
2370 config MIPS32_COMPAT
2371 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2372 depends on 64BIT
2373 help
2374 Select this option if you want Linux/MIPS 32-bit binary
2375 compatibility. Since all software available for Linux/MIPS is
2376 currently 32-bit you should say Y here.
2377
2378 config COMPAT
2379 bool
2380 depends on MIPS32_COMPAT
2381 default y
2382
2383 config SYSVIPC_COMPAT
2384 bool
2385 depends on COMPAT && SYSVIPC
2386 default y
2387
2388 config MIPS32_O32
2389 bool "Kernel support for o32 binaries"
2390 depends on MIPS32_COMPAT
2391 help
2392 Select this option if you want to run o32 binaries. These are pure
2393 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2394 existing binaries are in this format.
2395
2396 If unsure, say Y.
2397
2398 config MIPS32_N32
2399 bool "Kernel support for n32 binaries"
2400 depends on MIPS32_COMPAT
2401 help
2402 Select this option if you want to run n32 binaries. These are
2403 64-bit binaries using 32-bit quantities for addressing and certain
2404 data that would normally be 64-bit. They are used in special
2405 cases.
2406
2407 If unsure, say N.
2408
2409 config BINFMT_ELF32
2410 bool
2411 default y if MIPS32_O32 || MIPS32_N32
2412
2413 endmenu
2414
2415 menu "Power management options"
2416
2417 config ARCH_HIBERNATION_POSSIBLE
2418 def_bool y
2419 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2420
2421 config ARCH_SUSPEND_POSSIBLE
2422 def_bool y
2423 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2424
2425 source "kernel/power/Kconfig"
2426
2427 endmenu
2428
2429 source "arch/mips/kernel/cpufreq/Kconfig"
2430
2431 source "net/Kconfig"
2432
2433 source "drivers/Kconfig"
2434
2435 source "fs/Kconfig"
2436
2437 source "arch/mips/Kconfig.debug"
2438
2439 source "security/Kconfig"
2440
2441 source "crypto/Kconfig"
2442
2443 menuconfig VIRTUALIZATION
2444 bool "Virtualization"
2445 default n
2446 ---help---
2447 Say Y here to get to see options for using your Linux host to run other
2448 operating systems inside virtual machines (guests).
2449 This option alone does not add any kernel code.
2450
2451 If you say N, all options in this submenu will be skipped and disabled.
2452
2453 if VIRTUALIZATION
2454
2455 source drivers/virtio/Kconfig
2456
2457 endif # VIRTUALIZATION
2458
2459 source "lib/Kconfig"